• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A watch band (1), in which the central elements (3) and side elements (4) do not separate from one another during use, and a method for producing the same are provided. Reducing the number of components and manufacturing steps improves mass production capability and low costs. The watch band (1) is made up of at least central elements (3), in which a plurality of through holes arranged in a row and running in the transverse direction, and side elements (4), and is characterized in that side parts (4b) are provided, which form the side elements (4) form, and at least two coupling pins are integrally formed on a side part (4b). A sleeve (5) is also inserted into the through holes. From the left and right side of the through holes, respective coupling pins of two side parts (4b) are inserted into the inside of the through holes and into the sleeve circumference, and end sections of the individual coupling pins are located opposite one another in the interior of the through holes and on the respective sleeve inside circumference. The central elements (3) are thereby held by two side parts (4b) left and right, whereby the central elements (3) and the side elements (4) are composed.
    公开号:CH710545B1
    申请号:CH00653/16
    申请日:2014-10-29
    公开日:2020-06-15
    发明作者:Shimizu C/O Namiki Seimitsu Houseki Kabushikikaisha Akita Yuzawa Kozyo Yukiharu；Ratajski Michel；Shibata C/O Namiki Seimitsu Houseki Kabushikikaisha Akita Yuzawa Kozyo Susumu
    申请人:Adamant Namiki Prec Jewel Co Ltd；
    IPC主号:
    专利说明:

    TECHNICAL AREA
    The present invention relates to a watch band and a method for manufacturing the same.
    GENERAL PRIOR ART
    A watch band has, for example, a central element and two side elements, which hold the central elements on the left and right sides, as a single bracelet element block. In addition, a watch band was invented, wherein a through hole is formed in the central element for coupling the central element and the side elements and a coupling pin is guided through the through hole that is longer than the width of the central element, the left and right ends of the coupling pin left and are attached to the right side members (see, for example, Japanese Patent Laid-Open No. 2001-197911).
    In addition, a watch band has been proposed in which a sleeve is inserted inside the through hole and the coupling pin is passed through the inner periphery of the sleeve, the coupling pin being held by the sleeve (see, for example, Japanese Utility Model Registration No. 3149703).
    In the watch band of Japanese Patent Laid-Open No. 2001-197911, coupling pins are guided through the through holes of the individual central elements, while the axial end portions of the coupling pin are respectively inserted into holding holes in the side elements, so that the central elements are held at both ends by the side elements. In addition, a closure piece is inserted into counterbores in the side elements, so that the side elements are held by the coupling pin. According to such a watch band configuration, the watch band can be assembled in such a way that the side elements are held securely by the coupling pin and the central elements are securely held on both sides by the side elements.
    The watch band of the Japanese utility model no. 3149703, in turn, is an adjustment bracelet element that is configured such that outer elements (side elements) and middle elements (central elements) are combined in a Y-shape, so that the band can be freely assembled and disassembled . The middle member disposed between the pair of left and right outer members includes a middle member body and side surface parts provided on the left and right side surfaces thereof. In addition, a pin hole for the coupling pin is formed on a center element portion projecting from the outer member, and it has a C-shaped ferrule (sleeve) that holds the coupling pin inside the pin hole. According to such a configuration of the bracelet element, an adjustment bracelet element can be provided which can be used easily and safely without the C-shaped clamping sleeve slipping out of the bracelet element.
    PRIOR ART DOCUMENTS
    PATENT FILES
    [0006]<tb> <SEP> Patent Document 1: Japanese Patent Laid-Open No. 2001-197911<tb> <SEP> Patent Document 2: Japanese Utility Model Registration No. 3149703
    SUMMARY OF THE INVENTION
    OBJECT OF THE PRESENT INVENTION
    When configuring the watch band of the prior art, however, a structure for fastening the coupling pin and the side members is required (fastening structure), which is why the number of components increases by that of the fastening structure and manufacturing steps for the fastening components are also required. In addition, an operation for attaching the coupling pin and the side members is required. Specifically, a hole for inserting the coupling pin must be formed in the side members, and a fixing structure is also required on the two end portions of the coupling pin. As a result, the number of components and manufacturing steps increases, which leads to reduced mass production capability and increased costs for the watch strap.
    In addition, since the fastening parts of the coupling pins can be seen from the outside on the side elements, this leads to an impairment of the high-quality and appealing appearance of the watch band as a whole and to a reduced decorativity of the same. In the watch band of Japanese Patent Laid-Open No. 2001-197911, countersunk holes are formed in the side members, and locking pieces are inserted in the countersunk holes to hold the side members and the coupling pins. Therefore, the fastening parts of the coupling pins cannot be seen from the outside on the side elements. However, the fastening pieces are separately required as fastening components for the side elements and the coupling pins, which increases the number of components and the manufacturing steps, which leads to a reduced mass production capability and increased costs for the watch band leads.
    In addition, during use of the wristwatch there is a risk that the fastening parts of the side elements and the coupling pins will loosen and the side elements and the coupling pins become detached from one another. When the side members and the coupling pins become detached from each other, the end portion of the coupling pin is no longer attached, so that in a watch band with the left and right side members held by a single coupling pin, there is a risk that the coupling pin may move due to the movement of the Arms slips out of the central element. By sliding the coupling pin out, the side elements and the central element separate from each other, so that the watch band can fall apart.
    The present invention has been made in consideration of the above-described circumstances, and it is its object to provide a watch band and a method of manufacturing the same, whereby by reducing the number of components and the number of manufacturing steps, the mass production ability is improved, low costs and a high-quality appearance and a decorative exterior can be achieved and loosening of central elements and side elements can be avoided during use of the watch.
    MEANS TO SOLVE THE TASK
    The object is achieved by a watch band with the features of claim 1 and a method for its production according to claim 8 and a method for producing components thereof according to claim 10. Advantageous embodiments of the invention are specified in the dependent claims.
    A watch band of the present invention is at least composed of central elements, in which a plurality of through holes arranged in a row, extending transversely therethrough are provided, and side elements, each having a plurality of coupling pins which are inserted into the through holes, the a plurality of coupling pins of a side element are each inserted into through-holes of different adjacent central elements, whereby the central elements and the side elements are composed, characterized in that side parts are provided which form the side elements, and at least two coupling pins are integrally formed on a side part and further into the interior of the Through holes a sleeve is inserted, wherein from the left and right side of the through holes respective coupling pins of two side parts are inserted into the inside of the through holes and in the sleeve inner circumference and Endabs chnitte the individual coupling pins in the interior of the through holes and on the respective sleeve inner circumference opposite each other, whereby the central elements are each held by two side parts left and right and the central elements and the side elements are composed.
    In one embodiment of the watch band of the present invention, each coupling pin is formed in a pin shape, and each central member is composed of a central member body and a central member side portion, and a plurality of through holes arranged in a row are formed in the transverse direction therethrough on the central member body, the central member side portion being made from at least two side wall sections are formed, wherein a plurality of holes are provided in each side wall section, the two side wall sections each being arranged on a left and right side surface of the central element body, a center point of the through holes in the central element body and a center point of the holes provided in the side wall sections on the same axis are arranged in the transverse direction, (diameter of the holes of the side wall portions) <(diameter of the through holes of the central element body) and the size ratio Elder (diameter of the holes in the side wall sections) <(outer diameter of the sleeve) is met.
    In a further embodiment of the watch band of the present invention, the side parts are made of metallic glass.
    In a further embodiment of the watch band of the present invention, the side wall portions are coupled via a coupling portion, and one or both of the side parts and the side portions of the central member are made of metallic glass.
    In another embodiment of the watch band of the present invention, the main component of the metallic glass is one of Au, Pt, Zr, Cu, Pd and Ti.
    In a further embodiment of the watch band of the present invention, decorative parts are preferably inserted into the side wall sections of the side parts or central element side sections made of metallic glass.
    In a further embodiment of the watch band of the present invention, at least one of patterns, designs, shapes, ornaments, letters and three-dimensional shapes is preferably formed in the surface of the side parts or central element side sections made of metallic glass.
    In a further embodiment of the watch band of the present invention, the sleeve is a C-shaped clamping sleeve, a recess being provided in the axial direction in part of a circular circumference of a cylindrical sleeve part, so that a C-shaped profile is formed.
    In another embodiment of the watch band of the present invention, a protrusion or recess is formed on at least a part of the outer periphery of the coupling pin, and the sleeve is a cylindrical sleeve member, with a recess or a protrusion on at least part of the inner peripheral surface of the sleeve member is formed, which corresponds to the projection or the recess of the coupling pin.
    A method for manufacturing a watch band of the present invention, wherein central elements, in which a plurality of through holes arranged in a row and running transversely therethrough are provided, and side elements formed from side parts, the method comprising the following steps:<tb> <SEP> inserting sleeves into the through holes of the central element, and<tb> <SEP> inserting respective coupling pins of two side parts from the left and right side of the through holes into the inside of the through holes and into the sleeves, and<tb> <SEP> lying opposite each other Arranging the end sections of the individual coupling pins inside the through holes and on the sleeve inner circumference, whereby various adjacent central elements are each held by two side parts on the left and right and the central elements and the side elements are put together, at least on one side part two coupling pins are formed in one piece.
    In one embodiment of the method for producing a watch band, each central element and the side elements are put together by the coupling pins being pin-shaped, the central element being formed from a central element body and central element side sections, the central element side sections being formed by at least two side wall sections and a plurality of through holes which extend transversely through the central member body, a plurality of holes provided in the side wall portions and the outer diameter of the sleeves are set such that (diameter of the holes of the side wall portions) <(diameter of the through holes of the central member body) and the size ratio (diameter of the holes of the side wall sections) <(outer diameter of the sleeve) is fulfilled, with several through holes being arranged in a row in the central element body and several in each case in the side wall sections Holes are provided and the sleeves are inserted into the through holes of the central member body, two side wall portions are also provided on the left and right side surfaces of the central member body, the center point of the through holes provided in the central member body and the center point of the holes arranged in the side wall sections in the transverse direction the same axis is arranged and the coupling pins of two side parts are inserted through the holes of the side wall sections from the left and right through the through holes into the inside of the through holes and into the inner circumference of the sleeves and end sections of the individual coupling pins inside the through holes and the inner circumference of the respective sleeve opposite one another be arranged, whereby the central element is held by the two side parts left and right.
    A method for manufacturing components for a watch band of the present invention has the following cuts: casting the side parts from metallic glass, preparing a mold in which the shape of the side parts is formed, melting the metallic glass and casting the molten metallic glass into the mold.
    In a further embodiment of the method for producing components for a watch band, one of the side parts and the central element side sections or both is produced by casting from metallic glass, and coupling sections are provided which couple the individual side wall sections to one another, and it becomes a Preparing the mold in which the shape of the side parts or the central element side portions is formed, the metallic glass is melted and the molten glass is poured into the mold, whereby one or both of the side parts and the side portions of the central element are made and the side portions and the Coupling section are preferably formed in one piece.
    In a further embodiment of the method for manufacturing components for a watch band of the present invention, the main component of the metallic glass is one of Au, Pt, Zr, Cu, Pd and Ti.
    In a further embodiment of the method for producing a watch band of the present invention, a decorative part is preferably inserted into the side wall sections of the side parts or central element side sections made of metallic glass.
    In a further embodiment of the method for producing a watch band of the present invention, at least one of patterns, designs, shapes, ornaments, letters and three-dimensional shapes is preferably formed on the surface of the side parts or central element side sections made of metallic glass.
    In a further embodiment of the method for producing components for a watch band of the present invention, the components which form the watch band, with the exception of the sleeve, are produced by injection molding.
    In a further embodiment of the method for producing components for a watch band of the present invention, the sleeve is designed as a C-shaped clamping sleeve, with a longitudinal slot being made in the axial direction in part of the circumference of a cylindrical sleeve part, so that a C- shaped profile is formed.
    In a further embodiment of the method for manufacturing components for a watch band of the present invention, a protrusion or a recess is formed on at least a part of the outer circumference of the coupling pin, and the sleeve is a cylindrical sleeve part, with at least a part of the inner peripheral surface of the sleeve part, a depression or a projection is formed which corresponds to the projection or the depression of the coupling pin.
    EFFECT OF THE INVENTION
    According to the watch band of the present invention and the method of manufacturing the same, side part bodies of side parts constituting the side members are integrally formed with coupling pins. Thus, no fastening structure is required between the side part bodies and the coupling pins, so that the number of components for fastening coupling pins can be reduced, the number of steps for fastening the coupling pins and the side part bodies can be reduced, and a watch band can be provided which enables improved mass production capability and low costs .
    Since no fastening structure is required between the side part bodies and the coupling pins, it is prevented that the fastening part between the side part body and the coupling pin is visibly exposed on the outside of the side parts. Thus, the high quality and attractive appearance of the watch band is improved as a whole, and the high quality appearance and the decorativity of the watch band can be improved.
    In addition, since the side part body and the coupling pins are integrally formed, slipping out of the coupling pins from the side parts can be eliminated, and a state can be ensured in which the coupling pins are always attached to the side parts. Slipping out of the coupling pins from the central elements is thus eliminated, which prevents the side elements and the central elements from coming apart.
    Furthermore, by being a watch band, the central element being held on the left and right sides by a plurality of coupling pins which are integrally formed on a left and right side part body, it is possible in comparison to a watch band of the stand the technique, wherein a single coupling pin holds the left and right side members to double the number of coupling pins inserted into a through hole of the central member (one coupling pin each left and right). Even if a coupling pin of the left or right side part falls out of a through hole of a central element during use of the wristwatch, the coupling pin of the other side part still holds the central element, whereby the side elements and central elements can be prevented from falling apart even further.
    BRIEF DESCRIPTION OF THE FIGURES
    [0035] The figures show:<tb> Fig. 1 <SEP> is a plan view of a watch band according to a first embodiment of the present invention;<tb> Fig. 2 <SEP> is an exploded perspective view of the components of the watch band according to the first embodiment and their composition;<tb> Fig. 3 (a) <SEP> is a plan view of a side part that constitutes the watch band according to the first embodiment of the present invention; Fig. 3 (b) is a perspective view of the side part of Fig. 3 (a);<tb> Fig. 4 (a) <SEP> is a plan view of a side member body that constitutes the watch band according to the first embodiment of the present invention; Fig. 4 (b) is a front view of the side member body of Fig. 4 (a); Fig. 4 (c) is a perspective view of the side member body of Fig. 4 (a);<tb> Fig. 5 (a) <SEP> is a plan view of a central member that constitutes the watch band according to the first embodiment of the present invention; Fig. 5 (b) is a front view of the central member of Fig. 5 (a); Fig. 5 (c) is a perspective view of the central member of Fig. 5 (a);<tb> Fig. 6 <SEP> is a perspective view of a C-shaped ferrule that constitutes the watch band according to the first embodiment of the present invention;<tb> Fig. 7 <SEP> is a sectional view of the watch band according to the first embodiment of the present invention;<tb> Fig. 8 <SEP> is a plan view of a watch band according to a second embodiment of the present invention;<tb> Fig. 9 (a) <SEP> is an exploded perspective view of the components of the central member constituting the watch band according to the second embodiment and their composition; 9 (b) is a perspective view of the central element of FIG. 9 (a) composed of its components;<tb> Fig. 10 (a) <SEP> is a plan view of a center member body that constitutes the watch band according to the second embodiment of the present invention; 10 (b) is a plan view of a side portion of the central member that constitutes the watch band according to the second embodiment of the present invention;<tb> Fig. 11 <SEP> is an exploded perspective view of the components of the watch band according to the second embodiment and their composition;<tb> Fig. 12 <SEP> is a sectional view of the watch band according to the second embodiment of the present invention;<tb> Fig. 13 <SEP> is a partial sectional view of a watch band according to a third embodiment of the present invention;<tb> Fig. 14 <SEP> is a plan view of a side part constituting a watch band according to a modification example of the present invention;<tb> Fig. 15 <SEP> is a partial sectional view of a watch band according to a modification example of the present invention;<tb> Fig. 16 <SEP> is a partial sectional view of a watch band according to another modification example of the present invention;<tb> Fig. 17 <SEP> is a plan view of a side part constituting a watch band according to another modification example of the present invention;<tb> Fig. 18 <SEP> is a partial sectional view of a watch band according to still another modification example of the present invention;<tb> Fig. 19 <SEP> is an explanatory sectional view schematically showing steps for inserting decoration parts into the surface of a side part body;<tb> Fig. 20 <SEP> is an explanatory sectional view schematically showing further steps for inserting decoration parts into the surface of a side part body; and<tb> Fig. 21 <SEP> is a perspective view of a side part, a strip-shaped pattern of elevations and depressions being formed on a side surface of a side part body.
    EMBODIMENTS OF THE INVENTION
    In the following, a watch band according to a first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 7. A single bracelet element block 2 of a watch band 1 according to a first embodiment, as shown in FIGS. 1, 2 and 7, is formed from a central element 3 and two side elements 4, 4, which hold the central element 3 from the left and right side.
    As shown in FIG. 5, a plurality of through holes 3a, 3a (two in FIG. 5) are lined up in parallel on a central element 3. The two side elements 4, 4 are in turn formed as a pair on the left and right sides, and each side element 4 is formed from a side element body 4a and a side part 4b. A plurality of coupling pins (two in FIG. 3) 4b1, 4b2 are additionally formed and provided on the side parts 4b. Holes 4a1, 4a2 are formed on the side element body 4a in accordance with the number of coupling pins 4b1, 4b2, and by inserting the coupling pins 4b1, 4b2 into these holes 4a1, 4a2, the side element body 4a and the side parts 4b are assembled to form the side element 4 .
    The central element 3 and the side element 4 are assembled by inserting the two coupling pins 4b1, 4b2 of a side part 4b into the through holes 3a, 3a of different adjacent central elements 3, 3, respectively.
    The side parts 4b are, as shown in Fig. 3, each formed from a side part body 4b3 and two coupling pins 4b1, 4b2, wherein a side part body 4b3 and two coupling pins 4b1, 4b are produced by one-piece molding. Thus, two coupling pins 4b1, 4b2 are integrally formed on a side part 4b.
    The side face shape of the side part body 4b3 is essentially that of a rectangle with rounded corners (an oval), which has gentle curvatures and a straight part. The two coupling pins 4b1, 4b2 are formed in parallel and pin-shaped with the same diameter and length, and their end portions are chamfered. The bulged part of the side part body 4b3 produced by the curvature is formed in a projecting manner in the axial direction of the coupling pins 4b1, 4b2. By forming the two coupling pins 4b1, 4b2 in the form of a pin, the structure of the coupling pins 4b1, 4b2 can be simplified. This simplifies the manufacture of the side part 4b and thus improves the mass production ability of the watch band 1 and lowers its cost.
    The width W4b3 of the side part body 4b3 is set to 2.0 mm to 3.0 mm and its length T4b3 to 7.0 mm to 8.0 mm. The length L of the coupling pins 4b1, 4b is set to 5.0 mm to 6.0 mm and their diameter φ to 0.5 mm to 1.5 mm.
    On one side element body 4a, 4a, as shown in FIG. 4, a recess 4a3 for receiving at least a part of the side part body 4b3 and two holes 4a1, 4a2 are formed. The side surface shape of the side element body 4a is essentially that of a rectangle with rounded corners (an oval) which has a curvature on one part. As shown in FIG. 4 (b), the end face side is formed into a trapezoid, the short side of which faces the open side of the recess 4a3.
    The side surface shape of the recess 4a3 is determined in accordance with the side surface shape of the side part body 4b3 and is made slightly larger in the surface direction than the dimension of the side part body 4b3. In addition, two round holes 4a1, 4a2 are arranged in a row in the transverse direction parallel to one another in such a way that they are made from the bottom surface of the recess 4a3 to the other surface, and are set slightly larger than the diameter of the two coupling pins 4b1, 4b2. The two holes 4a1, 4a2 are formed with an identical diameter, since this is desirable from the point of ease of manufacture.
    The length T4a of the side member body 4a is set to 9.0 mm to 10.0 mm, and its width W4a is set to about 5.0 mm. The width W4a3 of the recess 4a3 is set at approximately 1.5 mm. The length T4a3 of the recess 4a3 is set slightly larger than the length T4b3 of the side part body 4b3.
    The side element body 4a, 4a and side parts 4b, 4b, which are arranged on both sides of the central element 3, are formed symmetrically in pairs left and right. The side part 4b is made of a material such as a super hard alloy, ceramic, a precious metal, a gold-containing alloy, stainless steel or metallic glass, and the side element body 4a is made of a super hard alloy, ceramic or a single crystal sapphire.
    As super hard alloys, tungsten carbide (WC), tantalum carbide (TaC), titanium carbide (TiC), niobium carbide (NbC) and the like can be mentioned, and as the ceramic, zirconium oxide ceramic, aluminum oxide ceramic, ceramic of the titanium nitride type and the like can be mentioned.
    In particular, if the side element body 4a is made of the above-mentioned materials from WC, TiC, NbC or zirconium oxide ceramic, it is possible to give the side element body 4a a black, blue or pink color. When the side member body 4a is made of WC, TiC, NbC, alumina ceramic, zirconia ceramic or titanium nitride type ceramic, it can be given a white coloring, and when the side member body 4a is made of zirconia ceramic, it can be given a pearl white coloring. When the titanium nitride type ceramic side member body 4a is made, it can be given a golden color. By selecting the materials in this way, the side member body 4a, which occupies a large area on the side member 4, can be given any color.
    Gold or platinum can be mentioned as the noble metal, and K18 (18K gold) or K22 (22K gold) or K24 (24K gold) as gold-containing alloys.
    When the side part 4b is made of metallic glass, the metallic glass made of metallic glass containing a single phase of glass, metallic glass containing a single phase of glass, the supercooling liquid portion of which can increase the temperature of 30 K or more 0.67 K / s, a metallic glass that contains crystals with a grain size of 100 nm or less, or metallic glass that contains 50 vol.% Or more of a metallic glass structure.
    Metallic glass, which contains a single phase of glass or crystals with a grain size of 100 nm or less, has a structure with surface smoothness. For this reason, there is no loss of particles and it is possible to produce a side part 4b with a smooth surface. Production fluctuations can also be safely eliminated. A side part 4b can thus be ensured with a high degree of dimensional accuracy.
    If the grain size exceeds 100 nm, this has a negative effect on the surface roughness (surface smoothness) of the side part 4b. Therefore, it is desirable that the grain size of the crystals in the metallic glass matrix structure is 100 nm or less.
    Metallic glass, which contains a single phase of glass, the supercooling liquid region of which has a temperature rise rate of 30 K or more at 0.67 K / s, has a high stability as solid-state glass. By using an injection molding or the like based on viscous flow, which is inexpensive and has high shape reproducibility, the side parts 4b can be manufactured with extremely high precision and manufacturing fluctuations can be reliably eliminated.
    By the side parts 4b made of metallic glass containing 50 vol.% Or more of a metallic glass structure, high dimensional accuracy and good dimensional stability can be achieved. Thus, the side parts 4b can be manufactured with high precision, and the side parts 4b can be given high durability.
    If the metallic glass structure is less than 50% by volume, the surface smoothness of the side part 4b is insufficient, which is why it is desirable that the metallic glass structure in the metallic glass is 50% by volume or more.
    By making the side member body 4a and the side part 4b from materials of this kind, a sturdy watch band can be made.
    When producing the side parts 4b from metallic glass, it is particularly preferred from the aspect of the high-quality decorative appearance of the watch band if the main constituent of the metallic glass is one of Au, Pt, Zr, Cu, Pd and Ti. Pt 48.75 can be used as an example for the structure of metallic Pt glass (at%). Pd 9.75. Cu 19.5. Name P 22 (alloy from Pt48.75Pd9.75Cu19.5P22).
    After manufacturing the side member body 4a and the side part 4b from the materials described above, is on the surface of the side member body4a and the side part 4b, grinding and polishing processing for the purpose of mirroring was carried out in order to give the surfaces a shine. Due to the mirroring, the surface roughness of the surfaces reaches Ra = 0.1 or less µm and Rz = 0.4 µm or less, so that the shine is emphasized as a decorative article and the watch is given an even higher-quality appearance and aesthetic appearance. If the material of the side element body 4a and the side part 4b is a superhard alloy, ceramic or another extremely hard material, it is mirrored by means of a diamond grinding wheel by grinding and polishing. If the side part 4b is made of the above-mentioned metallic glass, the desired surface roughness (Ra = 0.1 µm or less and Rz = 0.4 µm or less) can be achieved due to the surface smoothness that is typical of metallic glass, which is why it is not necessary to perform mirroring processing on the surface of side part 4b.
    The side surface shape of the central element 3 is essentially that of a rectangle with rounded corners (an oval), which has a curvature on one part. As shown in FIG. 5 (b), the top is curved so that it bulges toward the center of the central member 3. In addition, two through holes 3a, 3a are formed.
    The length T3 of the central member is set to 9.0 mm to 10.0 mm as shown in Fig. 5 (a), and its width W3 is set to 9.0 mm to 10.0 mm. The two through holes 3a, 3a are both circular and formed with the same diameter as the holes 4a1, 4a2, since this is desirable from the viewpoint of easy manufacture.
    Like the side element body 4a, the central element 3 is made of super hard alloy, ceramic or single crystal sapphire, and the desired color can be given to it by the selection of the material. With regard to the color coordination between the central element 3 and the side element body 4a, different combinations are possible with regard to the design of the watch band 1, and the central element 3 and the side element body 4a can be produced from the same material with the same color or from different materials with a different color.
    By making the central element 3 from materials of this type, a robust watch band can be made.
    After the central element 3 has been produced from the various materials, grinding and polishing processing can also be carried out on the surface of the central element 3 for the purpose of mirroring, in order to give the surface a shine. Due to the mirroring, a value of Ra = 0.1 μm or less and Rz = 0.4 μm or less can also be achieved for the surface roughness of the central element 3, as for the side element body 4a and the side part 4b.
    If the side part 4b, the side member body 4a and the central member 3 are made of a super hard alloy, sintering material can be obtained at least by applying powder metallurgy molding for the dimension of the through holes 3a, the holes 4a1, 4a2 and the coupling pins 4b1, 4b2 that is close to the final shape in relation to the final shape. Once this processing material has been obtained, it is sufficient to carry out a decorative outer surface polishing and chamfering etc. without the need for erosion processing, and the shaping and mirroring can be achieved simply by grinding and polishing the individual surfaces with a diamond grinding wheel. The side part 4b, the side element body 4a and the central element 3 can also be produced from a superhard alloy by means of powder injection molding.
    Even if the side part 4b, the side element body 4a and the central element 3 are made of ceramic, they can easily be produced by means of powder injection molding.
    If, on the other hand, the side part 4b is produced from precious metal or a gold-containing alloy, the production takes place by means of machining or injection molding. If the side part 4b is made of stainless steel, the stainless steel can be machined to produce a side part 4b of the desired shape and dimension.
    If the side part 4b is made of metallic glass, a side part 4b of a certain shape can be produced by means of die casting or injection molding. If the side part 4b is produced by means of die casting or injection molding, a molding tool is first prepared in which the shape of the coupling pins 4b1, 4b2 and the side part body 4b3 is formed. Then one of the above-mentioned metallic glass materials is melted, and the metallic glass is poured into the mold and allowed to cool. In this way, a side part 4b of a certain shape and size is produced. In the present invention, injection molding is considered a type of metal casting, but is further defined to include manufacturing processes using molten metallic glass.
    The temperature of the molten metallic glass is set at a temperature above the melting point. There are no particular restrictions on the method of manufacturing the molten metallic glass. The temperature of the molten metallic glass is also fixed at a temperature above the melting point during injection molding.
    By die casting or injection molding of metallic glass, a side part 4b of a certain shape can thus be produced in one molding process, so that an inexpensive and excellently suited for mass production watch band can be provided.
    By means of metal casting, the side part 4b can be produced with good reproducibility, so that the side part 4b can be manufactured in high quality.
    In order to prevent the metallic glass from shrinking upon cooling, it is preferably allowed to cool and solidify at a cooling rate of 300 ° C / s or more during molding. A still more preferred cooling rate is 104 ° C / s or more. If the cooling rate during molding exceeds 107 ° C / s, the molten metallic glass begins to solidify before it has filled the mold sufficiently, which can easily lead to defects. This greatly affects the surface roughness and dimensional accuracy. Therefore, the cooling rate in molding is preferably set to 300 ° C / s or more (more preferably 104 ° C / s or more) and 107 ° C / s or less.
    When the side member body 4a and the central member 3 are made of single crystal sapphire, the single crystal sapphire can be ground and polished to produce a side member body 4a and a central member 3 of a desired shape and size.
    In order to describe the structure of the watch band 1 in more detail, FIG. 7 shows that a C-shaped clamping sleeve 5 is inserted into the through holes 3a, 3a of the central element 3 and the holes 4a1, 4a2 of the side element body 4a. The C-shaped clamping sleeve 5 is a sleeve for holding the coupling pins 4b1 or 4b2, and it is made of a cylindrical sleeve part made of stainless steel, the circumference of which is provided with a recess in one part in the axial direction, so that its profile in the shape of the letter C is formed and it has elasticity. The outside diameter of the C-shaped clamping sleeve 5 is set slightly smaller than the diameter of the through holes 3a, 3a and the holes 4a1, 4a2, while the inside diameter is set slightly larger than the diameter φ of the coupling pins 4b1, 4b2.
    With reference to FIGS. 2 and 7, the assembly of the central element 3, the side element bodies 4a, 4a, the side parts 4b, 4b and the C-shaped clamping sleeve 5, 5 and as a method for producing a method for this assembly be described in detail.
    First of all, a C-shaped clamping sleeve 5, 5 is inserted into the through holes 3a, 3a. Next, the left and right end portions of the C-shaped ferrule 5, 5 are inserted into the holes 4a1, 4a2 of the two side member bodies 4a. In addition, the respective coupling pins 4b1, 4b2 of the two side parts 4b, 4b are inserted from the left and right symmetrically into the inner diameter at the left and right ends of the C-shaped clamping sleeves 5, 5 on the left and right side, and the side parts 4b, 4b are inserted elastically held by the C-shaped clamping sleeves 5, 5, whereby the side element bodies 4a, 4a and the side parts 4b, 4b are assembled into one part.
    In addition, the coupling pins 4b1, 4b2 are inserted into the axially central section of the C-shaped clamping sleeves 5, 5, until the mutually facing surfaces of the side part bodies 4b3, 4b3 on the bottom surface of the recesses 4a3, 4a3 touch, according to the specified dimensions, the end portions of the coupling pins 4b1, 4b2, as shown in Fig. 7, extend into the inside of the through holes 3a, 3a of the central element 3. Thus, the coupling pins 4b1, 4b2 are inserted into the through holes 3a, 3a from the left and right, and the end portions of the coupling pins 4b1, 4b2 are arranged opposite each other inside the through holes 3a, 3a, whereby the central member 3 on the left and right of the two side parts 4b, 4b is held. By using the C-shaped ferrule 5, in which the structure of the sleeve is straightforward and the manufacture thereof is easy, the structure of the sleeve can be simplified, thereby making it possible to improve the mass production ability and the low cost of the watch band 1.
    Furthermore, by inserting the two coupling pins 4b1, 4b2 formed on a single side part 4b into the through holes 3a, 3a of different mutually adjacent central elements 3, 3 in order to assemble the side parts 4b, 4b and the central elements 3, the Couple the bracelet element blocks 2 to form the watch band 1 without further ado.
    The transverse direction described as the through direction of the through holes 3a, 3a and the holes 4a1, 4a2 is, as shown in Fig. 7, the direction orthogonal to the length direction of the watch band 1 (i.e. the assembly direction of the central elements 3 and side elements 4, 4, in which the watch band 1 is formed).
    According to the watch band 1 of the first embodiment and the method for manufacturing the same, the side part bodies 4b3 of the side parts 4b, 4b that form the side elements 4 are formed integrally with the coupling pins 4b1, 4b2. Thus, no fastening structure is necessary between the side part bodies 4b3 and the coupling pins 4b1, 4b2, so that the number of components for fastening the coupling pins 4b1, 4b2 can be reduced, the number of steps for fastening the coupling pins and the side part body 4b3 can be reduced. Thus, a watch band 1 can be provided, which enables improved mass production ability and low cost.
    Since no fastening structure is necessary between the side part bodies 4b3 and the coupling pins 4b1, 4b2, the fastening part between the side part body 4b3 and the coupling pin 4b1, 4b2 is prevented from being exposed on the outside of the side parts 4b. Thus, the high quality and attractive appearance of the watch band 1 is improved as a whole, and the high quality appearance and the decorativity of the watch band 1 can be improved.
    In addition, since the side part bodies 4b3 and the coupling pins 4b1, 4b2 are integrally formed, slipping out of the coupling pins 4b1, 4b2 from the side parts 4b can be eliminated, and a state can be ensured in which the coupling pins 4b1, 4b2 are always on the side parts 4b are attached. Slipping out of the coupling pins 4b1, 4b2 from the central elements 3 is thus eliminated, which prevents the side elements 4 and the central elements 3 from coming apart.
    By further being a watch band 1, the central element 3 being held on the left and right sides by a plurality of coupling pins 4b1, 4b2, which are integrally formed on the left and right side part bodies 4b3, it is possible to make a comparison to a watch band of the prior art, wherein a single coupling pin holds the left and right side elements, the number of coupling pins inserted into a through hole of the central element can be doubled (one coupling pin 4b1, 4b2 left and right). Even if a coupling pin 4b1, 4b2 of the left or right side part 4b, 4b falls out of a through hole 3a of a central element 3 during use of the wristwatch, the coupling pin 4b1, 4b2 of the other side part 4b continues to hold the central element 3, causing the side elements 4 to fall apart and central elements 3 can be prevented even further.
    In the present embodiment, the C-shaped clamping sleeve 5 is also used as a sleeve for holding the coupling pins 4b1 or 4b2. By using the C-shaped ferrule 5, which is made by simply axially removing part of the circumference of a sleeve part, the structure of the sleeve is simplified, which also enables an improvement in mass production capability and low cost for the watch band 1.
    Furthermore, by making all the components of the watch band 1 (central element 3, side element body 4a, 4a, side parts 4b, 4b) each of metallic glass, a super-hard alloy, ceramic, a noble metal or a gold-containing alloy, with the exception of the sleeve can be manufactured in one step using injection molding. This improves the mass production ability of the watch band 1 and lowers its cost.
    Next, a watch band 6 according to a second embodiment of the present invention will be described in detail with reference to Figs. 8 to 12. Elements corresponding to those of the watch band 1 of the first embodiment are given the same reference numerals, and a renewed description is omitted or is shortened.
    Unlike the watch band 1 of the first embodiment, as shown in FIG. 9, in the watch band 6 according to a second embodiment, a central member 7 is formed from a central member body 7a and a central member side portion 7b. As shown in FIG. 9, the central element side section 7b is formed from two side wall sections 7b1, 7b1 and a coupling section 7b2 which couples the side wall sections 7b1, 7b1 to one another. The coupling section 7b2 and the two side wall sections 7b1, 7b1 are made in one piece. The two side wall sections 7b1, 7b1 are formed symmetrically on the left and right side.
    The side surface shape of the individual side wall sections 7b1, 7b1 is determined in accordance with the side surface shape of the central element body 7a. The side surface shape of the central element body 7a and the side wall portions 7b1, 7b1 corresponds to the side surface shape of the central element 3 and, as shown in FIG. 9, is essentially that of a rectangle with rounded corners (an oval) which has a curvature on one part.
    In addition, two holes 7c, 7c are provided in the side wall portions 7bl, 7b1. On a central element body 7a, through holes 7a1, 7a2 (two in FIG. 9) are also arranged in parallel in the transverse direction. The through holes 7a1, 7a2 and the holes 7c, 7c are each provided at corresponding positions in a circle and with the same diameter. The correspondence of the position means that when the central element body 7a and the central element side portion 7b are assembled, the center point of the through holes 7a1, 7a2 and the center point of the two holes 7c, 7c are arranged in the transverse direction of the watch band 6 on the same axis. The diameter of the through holes 7a1, 7a2 and the holes 7c, 7c is set to the same diameter as that of the through holes 3a, 3a, to a dimension that enables the C-shaped clamping sleeve 5 and the coupling pins 4b1, 4b2 to be inserted.
    The width W7b of the side wall portions 7b1, 7b1 is set to 0.5 mm to 2.0 mm as shown in Fig. 10, and their length T7b is set in accordance with the length T7a of the central element body 7a. The length T7a of the central element body 7a is determined in accordance with the length T3 of the central element 3. The width W7a of the central element body 7a is reduced by the total width of the two side wall sections 7b1, 7b1 (2 × W7b). That is, the thickness resulting from the sum of the width W7a of the central element body 7a and the total width of the two side wall sections 7b1, 7b1 (2 × W7b) is set in such a way that it corresponds to the width W3 of the central element 3.
    The coupling portion 7b2, as shown in Fig. 9 (a), follows the substantially straight part of one of the two side wall portions 7b1, 7b1, and is crescent-shaped in profile near the center of the two holes 7c, 7c. On one essentially straight-line section of the central element body 7a, a crescent-shaped recess in the form of an arc is cut out, in such a way that it corresponds to the profile of the coupling section 7b2.
    The central element side section 7b, like the side part 4b, is made of a superhard alloy, ceramic, a noble metal, a gold-containing alloy, stainless steel or metallic glass. In manufacturing the central member side portion 7b from metallic glass, it is particularly preferable from the viewpoint of the high quality decorative appearance of the watch band if the main constituent of the metallic glass is one of Au, Pt, Zr, Cu, Pd and Ti. Pt 48.75 can be used as an example for the structure of metallic Pt glass (at%). Pd 9.75. Cu 19.5. Name P 22 (alloy from Pt48.75Pd9.75Cu19.5P22). The central element side section 7b and the side part 4b can be produced from the same material with the same color or from different materials with a different color.
    The central element body 7a, like the central element 3 or the side element body 4a, is made of super-hard alloy, ceramic or single crystal sapphire, and the desired color can be imparted to it by the selection of the material. With regard to the color matching between the central element body 7a and the side element body 4a, different combinations are possible with regard to the design of the watch band 6, and the central element body 7a and the side element body 4a can be produced from the same material with the same color or from different materials with a different color.
    After the central element body 7a and the central element side portion 7b are made of the different materials, grinding and polishing processing for mirroring can also be carried out on the individual surfaces to give gloss. Due to the mirroring, a value of Ra = 0.1 µm or less and Rz = 4 µm or less can be achieved for the surface roughness. When the central member side portion 7b is made of the above-mentioned metallic glass, the desired surface roughness (Ra = 0.1 µm or less and Rz = 0.4 µm or less) can be achieved due to the surface smoothness that is typical of metallic glass, therefore, it is not necessary to perform mirroring processing on the surface of the central member side portion 7b.
    When the central member side portion 7b and the central member body 7a are made of a super hard alloy, at least powder metallurgy press molding can be applied, and then surface polishing and chamfering and the like can be performed for an aesthetic appearance. Manufacture by means of powder injection molding from a super hard alloy is also possible.
    Powder injection molding can also be used in the production of ceramics. In the manufacture of a noble metal or a gold-containing alloy, the manufacture can be carried out by machining or injection molding, and in the manufacture of stainless steel, the stainless steel can be machined to produce a central element side section 7b of the desired shape and dimension.
    [0095] When the central member side portion 7b is made of metallic glass, a central member side portion 7b of a certain shape can be manufactured by die casting or injection molding. If the central element side section 7b is produced by means of die casting or injection molding, a molding tool is first prepared in which the shape of the side wall sections 7b1, 7b1 and the coupling section 7b2 is formed. Then one of the above-mentioned metallic glass materials is melted, and the metallic glass is poured into the mold and allowed to cool. In this way, a central element side portion 7b of a certain shape and dimension is manufactured.
    As in the manufacture of the side part 4b, the temperature of the molten metallic glass is set at a temperature above the melting point. The temperature of the molten metallic glass is also fixed at a temperature above the melting point during injection molding.
    By making one of the side part 4b and the central element side portion 7b or both by die-casting or injection molding metallic glass, the side part 4b and / or the central element side portion 7b can be manufactured in one molding process, so that it is inexpensive and excellent for mass production suitable watch band 6 can be provided. Since the side part 4b or the central member side portion 7b can be made of metallic glass in one step by die casting or injection molding, the mass production ability of the watch band 6 improves, and its cost can be reduced.
    The central element side section 7b can be produced with good reproducibility by means of metal casting, so that the central element side section 7b can be manufactured in high quality.
    When the central element body 7a is made of single crystal sapphire, it can be made by grinding and polishing the single crystal sapphire.
    9, 11 and 12, the assembly of the central element body 7a, the central element side section 7b, the side element bodies 4a, 4a, the side parts 4b, 4b and the C-shaped clamping sleeve 5, 5 and as a method of manufacture is now intended Methods for this assembly are described in detail.
    As shown in FIG. 9, the coupling section 7b2 is first inserted into the arcuate recess in the central element body 7a. The central element body 7a is then inserted into the space between the two side surface sections 7b1, 7b1, as a result of which the central element 7 formed from the central element body 7a and the central element side section 7b is assembled. In this way, the two side wall portions 7b1, 7b1 are arranged on the left and right side surfaces of the central member body 7a, respectively. The center of the through holes 7a1, 7a2 and the center of the two holes 7c, 7c in the transverse direction of the watch band 6 are arranged on the same axis.
    Next, a C-shaped ferrule 5, 5 is inserted into the holes 7c, 7c, and a C-shaped ferrule 5, 5 is inserted into each of the through holes 7a1, 7a2. Then the left and right end portions of the C-shaped ferrules 5, 5 are inserted into the holes 4a1, 4a2 of the two side member bodies 4a. In addition, the respective coupling pins 4b1, 4b2 of the two side parts 4b, 4b are inserted from the left and right symmetrically into the inner diameter at the left and right ends of the C-shaped clamping sleeves 5, 5 on the left and right side, and the side parts 4b, 4b are inserted held elastically by the C-shaped clamping sleeves 5, 5, whereby the side element bodies 4a, 4a and the side parts 4b, 4b are assembled into one part.
    In addition, the coupling pins 4b1, 4b2 are inserted into the axially central section of the C-shaped clamping sleeves 5, 5 until the mutually facing surfaces of the side part bodies 4b3, 4b3 on the bottom surface of the recesses 4a3, 4a3 touch, according to the specified dimensions, the end portions of the coupling pins 4b1, 4b2, as shown in Fig. 12, extend into the inside of the through holes 7a1, 7a2 of the central element body 7a. Thus, the coupling pins 4b1, 4b2 are inserted into the through holes 7a1, 7a2 from the left and right, and the coupling pins 4b1, 4b2 are arranged opposite each other inside the through holes 7a1, 7a2, whereby the central element 7 on the left and right side of the two Side parts 4b, 4b is held.
    Furthermore, by inserting the two coupling pins 4b1, 4b2 formed on a single side part 4b into the through holes 7a1, 7a2 of different mutually adjacent central elements 7, 7 in order to assemble the side parts 4b, 4b and the central elements 7, the Couple the bracelet element blocks 8 to form the watch band 6 without further ado.
    According to the watch band 6 of the second embodiment and the method for producing the same, in addition to the effect of the watch band 1, it can be achieved that the coupling pins 4b1, 4b2 are attached to the side parts 4b. Slipping out of the coupling pins 4b1, 4b2 from the central elements 7 is thus eliminated, which prevents the side elements 4 and the central elements 7 from coming apart.
    Furthermore, by being a watch band 6, the central element 7 being held on the left and right sides by a plurality of coupling pins 4b1, 4b2, which are integrally formed on the left and right side part bodies 4b3, it is possible to make a comparison to a watch band of the prior art, wherein a single coupling pin holds the left and right side elements, to double the number of coupling pins inserted into a through hole of the central element (one coupling pin 4b1, 4b2 left and right). Even if a coupling pin 4b1, 4b2 of the left or right side part 4b, 4b falls out of a through hole 7a1, 7a2 and hole 7c, 7c of a central element 7 during use of the wristwatch, the coupling pin 4b1, 4b2 of the other side part 4b continues to hold the central element 7 , whereby a falling apart of the side elements 4 and central elements 7 can be prevented even further.
    In addition, with the exception of the sleeve, all components of the watch band 6 (central element body 7a, central element side section 7b, side element body 4a, 4a, side parts 4b, 4b) are each made of metallic glass, a super-hard alloy, ceramic, a noble metal or a gold-containing alloy , they can be injection molded in one step. This improves the mass production ability of the watch band 6 and lowers its cost.
    Since the watch band 6 has the central member side portion 7b, after assembling the watch band 6 on the left and right side of the central member 7 shown in Fig. 8, the side wall portion 7b1 is exposed to the outside. The choice of the material allows the side wall portion 7b1 to be given any color, and the metallic glass, the main component of which is one of Au, Pt, Zr, Cu, Pd, Ti, can give it a luster, thereby enhancing the high quality appearance and the Decorativity of the watch band 1 can be further improved.
    Next, a watch band 9 according to a third embodiment of the present invention will be described in detail with reference to FIG. 13. Elements which correspond to those of the watch band 6 of the second embodiment are provided with the same reference numerals, and a renewed description is omitted or is shortened.
    The watch band 9 of the third embodiment differs from the watch band 6 in that, as shown in FIG. 13, the diameter of the through holes 7a1, 7a2 of the central member body 7a is larger than the diameter of the holes 7c, 7c of the side wall portions 7b1, 7b1 and the outer diameter of the sleeve (the C-shaped clamping sleeve 5) larger than the diameter of the holes 7c, 7c of the side wall sections 7b1, 7b1, and thus the diameter of the through holes 7a1, 7a2 and the outer diameter of the sleeve and the diameter of the holes 7c, 7c of the side wall sections 7b1, 7b1 is set such that the above-mentioned size ratio is met. That is, the size ratios (diameter of the holes 7c, 7c of the side wall portions 7b1, 7b1) <(diameter of the through holes 7a1, 7a2 of the central element body 7a) and (diameter of the holes 7c, 7c of the side wall portions 7b1, 7b1) <apply to the watch band 9 (Outer diameter of the sleeve (the C-shaped clamping sleeve 5)).
    With reference to Fig. 13, a method for assembling the watch band 9 will now be described in detail as a method of manufacturing. First, a sleeve (C-shaped clamping sleeve 5) is inserted into the through holes 7a1, 7a2 of the central element body 7a.
    Then, the central member body 7a and the central member side portion 7b are assembled as in the watch band 6 to form the central member 7. When the central member 7 is formed, the center of the through holes 7a1, 7a2 and the center of the two holes 7c, 7c are arranged in the transverse direction of the watch band 9 on the same axis.
    The respective coupling pins 4b1, 4b2 of the side parts 4b, 4b in turn are pressed into the holes 4a1, 4a2 of the side element body 4a, and by pressing the coupling pins 4b1, 4b2 until the opposite surfaces of the side part bodies 4b3, 4b3 are the bottom surface of the depressions 4a3, 4a3 touch, the side element body 4a, 4a and the side parts 4b, 4b are assembled in one piece. The diameter of the holes 4a1, 4a2 of the side element body 4a and the diameter φ of the coupling pins 4b1, 4b2 are determined in a suitable manner so that mutual pressing is possible.
    Next, the coupling pins 4b1, 4b2 of the composite side member bodies 4a, 4a and side parts 4b, 4b are inserted into the holes 7c, 7c of the side wall portions 7b1, 7b1 from the left and right, and through the holes 7c, 7c of the side wall portions 7b1, 7b1 the coupling pins 4b1, 4b2 are inserted into the axially central section of the C-shaped clamping sleeves 5, 5, so that the C-shaped clamping sleeves 5, 5 hold the side parts 4b, 4b elastically.
    With regard to the dimension setting, the end portion of the coupling pins 4b1, 4b2, as shown in Fig. 13, extends into the inside of the through holes 7a1, 7a2 of the central element body 7a. In addition to the effect of the watch band 6, there is the effect here that the sleeve can be prevented from slipping out, since in the watch band 9 the outer diameter of the sleeve is set larger than the diameter of the holes 7c, 7c of the side wall sections 7b1, 7b 1. This simplifies the assembly of the watch band 9 and thus improves the mass production ability of the watch band 9 and lowers its cost.
    According to the method for manufacturing the watch band 9, the sleeve does not come out of the central member 7 when the left or right side part 4b, 4b is inserted from one side from a hole 7c, which simplifies the assembly of the watch band 9 and thus can improve the mass production ability of the watch band 9 and lower its cost.
    Furthermore, by inserting the two coupling pins 4b1, 4b2 formed on a single side part 4b into the through holes 7a1, 7a2 of different central elements 7, 7 adjacent to each other in order to assemble the side elements 4, 4 and the central elements 7, the Couple the bracelet element blocks 8 to form the watch band 9 without further ado.
    Various modifications can be made to the above-described embodiments according to their technical concept, and it is possible, for example, as shown in FIG. 13, to provide a step section or, as shown, one or more step sections on the outer circumference of the coupling pins 4b1, 4b2. and to form the coupling pins 4b1, 4b2 in such a way that their diameter changes in steps. By forming step portions on the outer periphery of the coupling pins 4b1, 4b2, as shown in Fig. 14, it is possible to lock the end portion of the C-shaped ferrule 5 to the step portion. Thus, if the coupling pins 4b1, 4b2 of the side parts 4b, 4b are inserted into the through holes 7a1, 7a2 from the left and right, an offset of the arrangement position of the C-shaped clamping sleeve 5 inside the through holes 7a1, 7a2 can be avoided. In this way, the coupling pins 4b1, 4b2 of the left and right side parts 4b, 4b can be held by the C clamping sleeve 5 with a uniform elasticity. It can thus be prevented from slipping out of the central element of the left or right side part during use of the wristwatch, which can further prevent the side elements and central elements from falling apart.
    In addition, as shown in Fig. 16, the side member body 4a can be omitted, and the side member 11 can be formed by the side member 11b alone. In a watch band 10 configured in this way, as shown in FIG. 17, the side surface shape of the side part body 11b3 and its length T11b3 can correspond to the side surface shape of the side element body 4a and its length T4a. The width W11b3 can be set such that it corresponds to the width of the side element 4 when the side part body 4b3 is received in the recess 4a3. By eliminating the side member body 4a, the number of components of the watch band 10 is reduced, which improves its mass production ability and lowers its cost. The length L of the coupling pins 4b1, 4b2 is reduced by the width W11b3.
    In addition, a protrusion or a recess may be formed on at least a part of the outer circumference of the coupling pins 4b1, 4b2, and at least a part of the inner circumferential surface of the cylindrical sleeve part forming the sleeve may correspond to the protrusion or the recess of the coupling pins 4b1 , 4b2 a depression or a projection are formed. As an example, FIG. 18 shows a sectional view of a watch band 13, a recess 14 in the form of a triangular groove being formed in the circumferential direction on the outer circumference of the coupling pins 4b1, 4b2, while a triangular projection shaped in accordance with the recess is formed in the circumferential direction on the inner circumference of the sleeve part 12 15 is provided. In the watch band 13, when the coupling pins 4b1, 4b2 are inserted into the inner circumference of the sleeve part 12, the projection 15 is inserted into the recess 14, so that the left and right side parts 4b, 4b are held securely by the sleeve part 12. Slipping out of the coupling pins from the central elements 7 is thus eliminated, which prevents the side elements 4 and the central elements 7 from coming apart.
    In addition, a decoration part can be inserted into the side parts 4b, 11b made of metallic glass or the side wall section 7b1 of the central element side section 7b. Inserting here means a state in which a part of the decorative parts is exposed on the surface of the component made of metallic glass and includes both inserting and embedding. Precious stones such as sapphires or rubies, noble metals or alloys of noble metals, ceramics, crystalline metals or glazes and the like can be mentioned as decorative parts, and others can also be used as desired.
    As the method of insertion, there can be mentioned a heat molding method (hot pressing), a heat setting method and the like. 19 shows, as an example, the steps for inserting decorative parts into the surface of the side part body 4b3 in a simple manner. First, as shown in Fig. 19 (a), a side part 4b is manufactured. A recess for inserting a decoration part is formed on the surface of the side part 4b beforehand by casting or the like. Then, as shown in Fig. 19 (b), the decoration part 16 is placed over the recess and placed in a hot press.
    [0123] Next, in the hot press, the side part 4b made of metallic glass is heated, and the viscosity of the side part 4b is reduced. The heating temperature of the side part 4b is set to a temperature between the crystallization temperature Tx of the metallic glass forming the side part 4b and its glass transition temperature Tg (that is, its supercooling liquid area). Metallic glass has a stable subcooling liquid area and is a non-crystalline alloy in this subcooling liquid area, which has a completely viscous Newton flow behavior and whose viscosity drops rapidly in the subcooling liquid area. The glass transition temperature differs depending on the type of metallic glass. For example, a Pt alloy made of Pt48.75Pd9.75Cu19.5P22 has a glass transition temperature Tg = 502.3 K, a crystallization temperature Tx = 587.7 K and a subcooling liquid range ΔTx = 85.4 K.
    Simultaneously with the reduction in the viscosity of the metallic glass, pressure is applied to the decoration part 16 arranged above the recess, so that, as shown in Fig. 19 (c), the decoration part 16 is embedded in the recess. Next, as shown in Fig. 19 (d), the decoration part 16 is completely embedded in the recess, and it is rapidly cooled to maintain the non-crystalline state of the metallic glass. In order to remove excess parts of the decoration part 16 after the embedding process, as shown in FIG. 19 (e), for example, a grinding process is carried out.
    Alternatively, as shown in FIG. 20, the decorative part 16 can also be pressed onto the surface of the component made of metallic glass. In this case, it is the metallic glass component that is heated to its supercooling liquid area (in FIG. 20, the side part body 4b3). First, as shown in Fig. 20 (a), the decoration part 16 is placed on the surface of the side part body 4b3, whereupon, as shown in Fig. 20 (b), it is heated and pressurized in a hot press. In the example from FIG. 20, pressure is only exerted locally on the decorative part 16 to be used. As shown in Fig. 20 (c), the pressure is applied until the decoration part 16 is partially covered by the side part body 4b3. The metallic glass is then cooled and excess metallic glass material is ground off as shown in Fig. 20 (d).
    By inserting a decoration part 16 into the side parts 4b, 11b or the side wall section 7b1 of the central element side section 7b made of metallic glass as described above, the aesthetic appearance of the watch band is further increased, thereby further enhancing the high quality appearance and the decorativity of the watch band can be improved.
    [0127] Before the decorative part 16 is inserted, depressions or projections for fastening the decorative part 16 can also be formed on the side section of the depression.
    [0128] Even when the decoration part 16 is inserted into the recess in the heat molding process, the metallic glass is locally heated to a temperature within the supercooling liquid range. At the time when at least the depression has reached this temperature, the decorative part can be pressed into the depression.
    In addition, at least one of patterns, designs, shapes, ornaments, letters or three-dimensional shapes can be formed on the surface of the side parts 4b, 11b or the central member side portion 7b as desired to increase the aesthetic appearance of the watch band and to improve the high quality appearance and the decorativity of the watch band. 21 shows, as an example, a perspective view of the side part 4b, a strip-shaped pattern of elevations and depressions being formed on the side surface of the side part body 4b3. Such a side part 4b can be formed, for example, by casting. The formation of such a pattern and the insertion of a decoration part 16 can be carried out simultaneously on a side part 4b.
    As for the patterns, designs, shapes, ornaments and letters, they can be worked to stand out, or they can instead be worked to be engraved.
    [0131] Symbols can be letters, Japanese hiragana or katakana characters, Chinese characters, numbers, Chinese numbers, symbols, characters or the like or brand logos. Shapes can include basic shapes such as circles or triangles or even quadrilaterals or even more complicated geometric patterns, brands or logos or the manufacturer's mark.
    Explanation of the reference symbols
    1, 6, 9, 10, 13 watch band 2, 8 bracelet element block 3, 7 central element 3a through hole 4, 11 side element 4a side element body 4a1, 4a2 hole of the side element body 4a3 depression of the side element body 4b, 11b side part 4b1, 4b2 coupling pin 4b3, 11b3 Side part body 5 C-shaped clamping sleeve 7a central element body 7a1 7a2 through hole 7b central element side section 7b1 side wall section 7b2 coupling section 7c hole in the side wall section 12 sleeve part 14 recess of the coupling pin 15 projection of the sleeve part 16 decoration part
    权利要求:
    Claims (15)
    [1]
    1. watch band (1, 6, 9, 10, 13), which is provided at least from central elements (3, 7), in which a plurality of through holes (3a, 7a1, 7a2) arranged in a row and running transversely therethrough are provided, and Side elements (4, 11) is constructed, each having a plurality of coupling pins (4b1, 4b2) which are inserted into the through holes (3a, 7a1, 7a2), the plurality of coupling pins (4b1, 4b2) of a side element (4, 11) are each inserted into through holes (3a) of different adjacent central elements (3, 7), whereby the central elements (3, 7) and the side elements (4, 11) are assembled,characterized in that side parts (4b, 11b) are provided which form the side elements (4, 11), and at least two coupling pins (4b1, 4b2) are integrally formed on a side part (4b, 11b) and furthermore into the interior of the through holes ( 3a, 7a1, 7a2) a sleeve (5) is inserted, the respective coupling pins (4b1, 4b2) of two side parts (4b, 11b) from the left and right side of the through holes (3a, 7a) into the inside of the through holes (3a, 7a1, 7a2) and in the inner sleeve circumference and end sections of the individual coupling pins (4b1, 4b2) inside the through holes (3a, 7a1, 7a2) and on the respective inner sleeve circumference are opposite each other, whereby the central elements (3, 7) each by two Side parts (4b, 11b) are held left and right and the central elements (3, 7) and the side elements (4, 11) are assembled.
    [2]
    2. watch band (1, 6, 9, 10, 13) according to claim 1, characterized in that each coupling pin (4b1, 4b2) is pin-shaped and that each central element (7) from a central element body (7a) and a central element side portion (7b ) is constructed, wherein on the central element body (7a) a plurality of through holes (7a1, 7a2) arranged in a row are formed running in the transverse direction, the central element side section (7b) being formed from at least two side wall sections (7b1), each side wall section ( 7b1) a plurality of holes (7c) are provided, the two side wall sections (7b1) each being arranged on a left and right side surface of the central element body (7a), a center point of the through holes (7a1, 7a2) in the central element body (7a) and a center point of the holes (7c) provided in the side wall sections (7b1) are arranged on the same axis in the transverse direction, the diameter of the hole (7c) of the side wall sections (7b1) are smaller than the diameter of the through holes (7a1, 7a2) of the central element body (7a) and the size ratio of the diameter of the holes (7c) of the side wall sections (7b1) is smaller than the outer diameter of the sleeve.
    [3]
    3. watch band (1, 6, 9, 10, 13) according to claim 1, wherein the side parts (4b, 11b) are made of metallic glass.
    [4]
    4. Watch band (1, 6, 9, 10, 13) according to claim 2, characterized in that the side wall sections (7b1) are coupled by a coupling section (7b2), one of the side part (4b, 11b) and the central element side section ( 7b) or both are made of metallic glass.
    [5]
    5. watch band (1, 6, 9, 10, 13) according to claim 3 or 4, characterized in that the metallic glass has as the main component one of Au, Pt, Zr, Cu, Pd and Ti.
    [6]
    6. watch band (1, 6, 9, 10, 13) according to one of claims 1 to 5, characterized in that the sleeve is a C-shaped clamping sleeve (5), wherein in part of a circular circumference of a cylindrical sleeve part (12) a recess is provided in the axial direction, so that a C-shaped profile is formed.
    [7]
    7. watch band (1, 6, 9, 10, 13) according to one of claims 1 to 5, characterized in that at least on a part of the outer circumference of the coupling pin (4b1, 4b2) is formed a projection or a recess (14) and the sleeve is a cylindrical sleeve part, a recess or a projection (15) being formed on at least part of the inner peripheral surface of the sleeve part (12), which corresponds to the projection or the recess (12) of the coupling pin (4b1, 4b2) .
    [8]
    8. A method for producing a watch band (1, 6, 9, 10, 13), central elements (3, 7) being provided, in which a plurality of through holes (3a, 7a1, 7a2) arranged in a row and running transversely therethrough are provided , and side elements (4, 11) formed from side parts (4b, 11b), the method comprising the following steps:Inserting sleeves (5) into the interior of the through holes (3a, 7a1, 7a2) of the central element (3, 7), andInserting respective coupling pins (4b1, 4b2) of two side parts (4b, 11b) from the left and right side of the through holes (3a, 7a1, 7a2) into the inside of the through holes (3a, 7a1, 7a2) and into the sleeves (5), andArranging the end sections of the individual coupling pins (4b1, 4b2) lying opposite one another inside the through holes (3a, 7a1, 7a2) and on the sleeve inner circumference, as a result of which different adjacent central elements (3, 7) each through two side parts (4b, 11b) left and right are held and the central elements (3, 7) and the side elements (4, 11) are assembled, at least two coupling pins (4b1, 4b2) being formed in one piece on a side part (4b, 11b).
    [9]
    9. The method according to claim 8, characterized in that each central element (3, 7) and the side elements are assembled by the coupling pins (4b1, 4b2) are pin-shaped, the central element (3, 7) is formed from a central element body and central element side sections , the central element side sections are formed by at least two side wall sections and a plurality of through holes (3a, 7a1, 7a2) which run transversely through the central element body, a plurality of holes provided in the side wall sections and the outer diameter of the sleeves are set such that the diameter of the holes in the side wall sections are smaller than the diameter of the through holes (3a, 7a1, 7a2) of the central element body and the size ratio of the diameter of the holes in the side wall sections is smaller than the outer diameter of the sleeve, with several through holes (3a, 7a1, 7a2) in one in the central element body Row a be arranged and a plurality of holes are provided in each of the side wall sections and the sleeves are inserted into the interior of the through holes (3a, 7al, 7a2) of the central element body, two side wall sections also being provided on the left and right side surfaces of the central element body, the center point of the Central element body provided through holes (3a, 7a1, 7a2) and the center of the holes arranged in the side wall sections in the transverse direction on the same axis and the coupling pins (4b1, 4b2) of two side parts (4b, 11b) over the holes of the side wall sections from the left and right through the through holes (3a, 7a1, 7a2) into the inside of the through holes (3a, 7a1, 7a2) and into the inner circumference of the sleeves and end portions of the individual coupling pins (4b1, 4b2) inside the through holes and the inner circumference of the respective sleeve are arranged opposite each other, whereby the Ze ntral element (3, 7) is held by the two side parts (4b, 11b) left and right.
    [10]
    10. A method for producing components for a watch band (1, 6, 9, 10, 13) according to one of the claims 1 to 7, which comprises the following steps:Pouring the side parts from metallic glass, namelyPreparing a mold in which the shape of the side parts is formed,- melting of the metallic glass, and- Pour the molten metallic glass into the mold.
    [11]
    11. The method according to claim 10, wherein one of the side parts (4b, 11b) and the central element side sections (7b) or both are produced by casting from metallic glass and coupling sections are provided which couple the individual side wall sections (7b1) to one another, the method does the following:- preparing a mold in which the shape of the side parts (4b, 11b) or the central element side sections is formed,–Melting of the metallic, and- pouring the molten glass into the mold,whereby one or both of the side parts (4b, 11b) and the side sections of the central element (3, 7) are produced and the side sections and the coupling section are formed in one piece.
    [12]
    12. The method according to claim 10 or 11, characterized in that the metallic glass has as the main component one of Au, Pt, Zr, Cu, Pd and Ti.
    [13]
    13. The method according to any one of claims 10 to 12, wherein the components that form the watch band, with the exception of the sleeve, are produced by injection molding.
    [14]
    14. The method according to any one of claims 10 to 13, wherein in a part of the circumference of a cylindrical sleeve part, a longitudinal slot is made in the axial direction, so that a C-shaped profile is formed, so that the sleeve is designed as a C-shaped clamping sleeve (5) is.
    [15]
    15. The method according to any one of claims 10 to 14, characterized in that a projection or a recess is formed at least on a part of the outer circumference of the coupling pin (4b1, 4b2) and the sleeve is a cylindrical sleeve part, with at least a part of the inner circumferential surface of the sleeve part, a depression or a projection is formed which corresponds to the projection or the depression of the coupling pin (4b1, 4b2).
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    同族专利:
    公开号 | 公开日
    JP6617266B2|2019-12-11|
    WO2015079859A1|2015-06-04|
    DE112014005431B4|2020-06-25|
    DE112014005431T5|2016-08-18|
    CN105764374B|2018-03-27|
    JPWO2015079859A1|2017-03-16|
    CN105764374A|2016-07-13|
    引用文献:
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    JPS62298304A|1986-06-18|1987-12-25|Seiko Instr & Electronics|Block band for wristwatch|
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    US10106869B2|2011-05-02|2018-10-23|Ecole Polytechnique Federale De Lausanne |Platinum based alloys|JPWO2017073707A1|2015-10-29|2018-10-04|アダマンド並木精密宝石株式会社|Wristband, method for manufacturing the same, and wristwatch|
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    法律状态:
    2018-04-30| PFA| Name/firm changed|Owner name: ADAMANT NAMIKI PRECISION JEWEL CO., LTD., JP Free format text: FORMER OWNER: NAMIKI SEIMITSU HOUSEKI KABUSHIKIKAISHA, JP |
    2018-05-15| PCAR| Change of the address of the representative|Free format text: NEW ADDRESS: SPLUEGENSTRASSE 10, 8002 ZUERICH (CH) |
    2019-09-30| PK| Correction|Free format text: BERICHTIGUNG ERFINDER |
    优先权:
    申请号 | 申请日 | 专利标题
    JP2013245699|2013-11-28|
    PCT/JP2014/078795|WO2015079859A1|2013-11-28|2014-10-29|Wristwatch band and manufacturing method therefor|
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