• 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:
    The present invention relates to a timepiece intended to allow precise positioning of a dial and a plate such as a solar cell. The timepiece (10) proposed comprises: a plate (2) having one or more positioning parts (21) and (22); a plate (3) having one or more first positioning receiving portions (33) to be locked to the positioning portion (21) and being arranged to cover the platen (2); and a dial (5) having one or more second positioning receiving portions (55) to be latched to the positioning portion (22) and which are arranged to cover the plate (3).
    公开号:CH713424A2
    申请号:CH00136/18
    申请日:2018-02-06
    公开日:2018-08-15
    发明作者:Kawata Masayuki
    申请人:Seiko Instr Inc；
    IPC主号:
    专利说明:

    Description
    BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a timepiece. 2. Description of the Prior Art [0002] For example, in an analog timepiece indicating the time on a dial using a pointer as an indicator, a solar cell in the form of an affixed plate is sometimes used (see, for example, for example, Patent Document 1 (JP-A-11-148981)).
    The timepiece disclosed in the patent document 1 is equipped with a module, a solar cell (plate), a support, and a display plate. The solar cell is positioned relative to the module by mutual engagement between a positioning recess and a projecting projection of the module. The display plate is positioned relative to the support by mutual engagement between a projecting protrusion and a positioning recess of the support. The support is fixed to the module by mutual engagement between a locking hook and a locking recess of the module.
    The aforementioned timepiece is subject to positioning differences of the display plate and the solar cell, in a direction included in their respective positioning planes. In addition, it is likely that a positional variation is generated in the direction of the thickness of the display plate, so that it is necessary to ensure sufficient spacing between the indicator needle and the display plate. display taking into account this variation. Therefore, the timepiece is not advantageous in terms of thickness considerations, because the latter can hardly be reduced.
    SUMMARY OF THE INVENTION
    An object of an embodiment of the present invention is to provide a timepiece for precise positioning of a display plate and a plate such as a solar cell.
    According to one embodiment of the present invention, there is provided a timepiece comprising: a plate having one or more positioning parts; a plate having one or more first positioning receiving portions to be locked to the positioning portion and arranged to cover the platen; and a display plate having one or more second positioning receiving portions to be locked to the positioning portion and arranged to cover the plate.
    In this configuration, the plate and the display plate are positioned relative to the plate, so that it is possible to adjust the position of the plate and the display plate precisely in their plans. respective positioning positions.
    Furthermore, the display plate is positioned by being directly in contact with the plate, so that it is possible to adjust the position of the display plate precisely in the direction of the thickness. Thus, for example, an arrangement is possible in which the spacing between the indicator needle and the display plate is small, which is advantageous for reducing the thickness of the timepiece.
    The positioning portions may consist of projections formed on the plate, and the first positioning receiving portions and the second positioning receiving portions may be locked recesses to the positioning portions.
    In this configuration, compared to the case where protrusions are formed on the plate and the display plate, and where recesses to lock to the projections are formed in the plate, the structure of the plate and the plate display is simplified, and its production is facilitated.
    The timepiece can also be equipped with a circling piece that compresses the plate against the plate.
    In this configuration, it is possible to prevent any elevation of the plate, and to position the plate precisely in the direction of the thickness. In addition, by giving the encircling piece a shape around the outer periphery of the display plate, it is possible to prevent any tearing of the display plate inadvertently at the time of its housing in the housing or other . In addition, it is possible to compress the plate against a terminal of the plate, so that it is possible to provide a reliable electrical conduction between the plate and the terminal.
    The timepiece may have, on the plate, a base adjacent to the display plate and determining the position of the display plate in the direction of the thickness.
    In this configuration, it is possible to improve the positioning accuracy of the display plate in the direction of the thickness.
    The timepiece may have, on the plate, a fixing portion of the display plate fixing the display plate, and the display plate may have a fixing receiving portion to be engaged with the display plate fixing portion.
    In this configuration, it is possible to fix the display plate reliably to the plate.
    In the timepiece, the plate may be a solar cell.
    In this configuration, it is possible to convert the sunlight, from an illumination, etc. in electrical energy and use it.
    In the timepiece, at least one of the first positioning receiving parts and at least one of the second positioning receiving parts are locked to a positioning part which is common to them.
    In this configuration, it is possible to improve the positioning accuracy of the plate and that of the display plate relative to the housing, where the positioning parts to which the plate and the display plate are locked are different from each other.
    In the timepiece, an anti-magnetic plate may be provided on the side of the plate of the plate, and the anti-magnetic plate may have one or more third positioning receiving parts to be locked to the part of positioning.
    In this configuration, due to the anti-magnetic plate, it is possible to suppress the influence of an external magnetic field on a motor or the like.
    The timepiece can be further equipped with an antenna, and may have a notch avoiding a position covering the antenna in the direction of the thickness of the plate.
    In this configuration, it is possible to prevent the antenna is covered by the anti-magnetic plate, which improves the transmission characteristics / reception of the antenna.
    In the timepiece, the anti-magnetic plate may be electrically continuous with a weight gain provided on the side of the plate.
    In this configuration, it is possible to remove any electrostatic noise.
    In the timepiece, a fixing part of the display plate fixing the display plate may be formed on the plate, and the anti-magnetic plate may have a guide receiving part to be locked. at the display plate fixing portion.
    In this configuration, even when a deformation is generated at the third positioning receiving portion due to a shock due to a fall or the like, it is possible to prevent any tearing of the anti-slip plate. magnetic by locking the fixing portion of the display plate to the guide receiving part.
    According to one embodiment of the present invention, there is provided: a plate having one or more positioning parts; a plate having one or more first positioning receiving portions to be locked to the positioning portion, and which is arranged to cover the platen; and a display plate having one or more second positioning receiving portions to be locked to the positioning portion and arranged to cover the plate.
    According to one embodiment of the present invention, the plate and the display plate are positioned relative to the plate so that it is possible to adjust the positioning of the plate and the display plate with accuracy in a direction included in their respective positioning plane. In addition, the display plate is positioned so that it is directly in contact with the plate; thus, it is possible to adjust the positioning of the display plate accurately also in the direction of the thickness.
    BRIEF DESCRIPTION OF THE DRAWINGS
    [0031]
    Fig. 1 is an exploded perspective view of a timepiece according to a first embodiment.
    Fig. 2 is a perspective view illustrating the assembly process of the timepiece of FIG. 1.
    Fig. 3 is a perspective view illustrating how a solar cell is mounted.
    Fig. 4 is a perspective view illustrating the mounting process following that of the drawing above.
    Fig. 5 is a perspective view illustrating how a circling piece is mounted.
    Fig. 6 is a perspective view illustrating the mounting process following that of the drawing above.
    Fig. 7 is a perspective view illustrating how a display plate is mounted.
    Fig. 8 is an exploded perspective view of a timepiece according to a second embodiment.
    Fig. 9 is an exploded perspective view of a timepiece according to a third embodiment.
    Fig. 10 is a schematic diagram illustrating an example of a bearing structure of an anti-magnetic plate and a grounding.
    Fig. 11 is a schematic diagram illustrating another example of a bearing structure of an anti-magnetic plate and a grounding.
    Fig. 12 is a perspective view illustrating the assembly process of the timepiece of FIG. 9.
    Fig. 13 is a perspective view illustrating how an anti-magnetic plate is mounted.
    DESCRIPTION OF THE EMBODIMENTS
    Embodiments of the present invention will be described with reference to the drawings. In the embodiments described below, the present invention is applied to an electronic timepiece.
    [0033] [First Embodiment] [0034] FIG. 1 is an exploded perspective view of an electronic timepiece (timepiece) according to the first embodiment.
    As shown in FIG. 1, the electronic timepiece is equipped with a movement 1 and a display plate 5. The movement 1 is equipped with a main movement body 1A, a plate 2, a solar cell 3, a circling piece 4, and a pointer shaft (s) 6. The display plate 5 is located on the upper side of the movement 1. The symbol C indicates the center axis of the workpiece. electronic watchmaking. Of the directions along the center axis C, reference is made to a first axial direction C1, and a second axial direction C2 to the opposite direction to the first axial direction C1. In what follows, reference will sometimes be made to the upper side for the first axial direction C1, and to the lower side for the second axial direction C2. The center axis C1 extends through the centers of the movement 1 (the plate 2, the solar cell 3, the encircling piece 4, and the indicator shaft 6) and the display plate 5 .
    Reference is made to the direction about the center axis C as a peripheral direction R. In the peripheral direction R, reference will be made to a first peripheral direction R1, and to a second peripheral direction R2 in the direction opposite to the first peripheral direction. A direction along a plane perpendicular to the axis of center C will be considered as a direction in the plane of positioning.
    [0037] The electronic timepiece has indicator hands (the hour hand, the minute hand, and the seconds hand - not shown) mounted on the indicator needle shaft 6. Although not shown, the electronic timepiece can be equipped with a windshield (that is to say an ice), a caseback, a telescope, a case, and a belt. The housing receives the movement 1 and the display plate 5. The windshield is mounted at the opening of the housing by means of the telescope. The windshield is formed of a material allowing the transmission of light such as sunlight such as glass or plastic.
    The movement 1 (more specifically, the main body of movement 1A) is equipped, for example, with a circuit block (for example, an oscillation circuit and a control circuit), a battery (second battery ), and a motor. The battery is charged with electrical energy supplied by the solar cell 3. The motor drives the pointer pin 6.
    The plate 2 has a main body 2A in the form of a plate, a pair of first positioning protruding parts 21 (positioning parts, protruding parts), a pair of second positioning protruding parts 22 (positioning parts, protruding parts ), a plurality of fixing projections 23 (plate fixing parts), a pair of height pedestal groups 24A, and a pair of solar cell terminals 25. The plate 2 is arranged on the side of the upper surface. of the main body of movement 1 A. The main body 2A is configured substantially in annular form when seen, for example, in a direction parallel to the center axis C.
    The first projecting projecting parts 21 are formed on a first main surface 2a (the surface on the side of the first axial direction C1) of the main body 2A to project in the first axial direction C1 (upwards in FIG. 1). There are no particular restrictions on the configuration of the first positioning protrusions 21. For example, they may be formed into columns having a center axis parallel to the center axis C. The pair of first projecting portions of 21 are located in positions spaced from each other in the peripheral direction R. While there are no particular restrictions on the relative positions of the first positioning protrusions 21, it is desirable for them to be, for example, located in positions symmetrical in rotation with respect to the axis of center C.
    The number of first salient positioning parts is not limited to 2. It could be 1 or an arbitrary number (plural number) equal to 2 or more. The plurality of first position protruding portions may be configured in rotational symmetric positions of n-order rotational symmetry (where n is an integer of 2 or more) with respect to the center axis C.
    The second projecting protruding parts 22 are formed on the first main surface 2a of the main body 2A to project in the first axial direction C1 (towards the top of Fig. 1). There are no particular restrictions on the configuration of the second positioning protrusions 22. For example, they are configured as columns having a center axis parallel to the center axis C. The pair of second projecting portions 22 are located in spaced apart positions in the circumferential direction R. There are no particular restrictions on the relative positions of the pair of second positioning protrusions 22. For example, it is desirable for they are symmetrical in rotation with respect to the axis of center C.
    The positions in the peripheral direction R of the second projecting positioning parts 22 are different from those of the first positioning projecting parts 21. In the electronic timepiece 10 shown in FIG. 1, the second projecting protrusions 22 are in positions offset from the first positioning protrusions 21 in the peripheral direction R by approximately 90 °.
    The number of second positioning protrusions is not limited to 2. It could be 1 or an arbitrary number (plural number) equal to 2 or more. The plurality of second positioning protrusions may be configured in rotational symmetrical positions of n-order rotational symmetry (where n is an integer of 2 or more) with respect to the center axis C.
    The projecting attachment portions 23 are formed on the first main surface 2a of the main body 2A to project in the first axial direction C1 (upwards in Fig. 1). There are no particular restrictions regarding the configuration of the projecting protruding parts 23. For example, they are configured as elliptical columns when they are viewed in a direction parallel to the center axis C (elliptical configuration in columns). For example, the projecting projections 23 take the form of elliptical columns along an axis whose main direction is perpendicular to the radial direction of the main body 2A.
    The plurality of (for example, 4 in the electronic timepiece 10 in Fig. 1) projecting projections 23 is formed at different intervals in the peripheral direction R. On the electronic timepiece 10 shown in fig. 1, the positions in the circumferential direction R of one part of the plurality of fixing projections 23 (two fixing projections 23 in Fig. 1) are positions in close proximity to the second positioning projections 22.
    The number of projecting projecting parts is not restricted to 4. It may be equal to 1 or an arbitrary number (plural number) equal to 2 or more.
    Each of the pairs of pedestals of height 24A has a plurality of pedestals height 24. The height pedestals 24 are formed on the first main surface 2a of the main body 2A to project in the first axial direction C1 (to the top in Fig. 1). There are no particular restrictions on the configuration of the height pedestals 24. For example, they are configured as columns having a center axis parallel to the center axis C.
    In the electronic timepiece 10 shown in FIG. 1, each height pedestal group 24A includes three height pedestals 24 at different positions in the peripheral direction R. These three height pedestals 24 will be referred to as from the first to the third height pedestals 24a to 24c. The first height base 24a and the second height base 24b are in positions in the immediate vicinity of the projecting projection portion 23. The second height base 24b and the third height base 24c are in positions in the immediate vicinity of the second positioning protrusion 22. The position in the peripheral direction R of the first height pedestal 24a is a position in the second circumferential direction R1 with respect to the fixing protrusion portion 23. The position in the peripheral direction R of the second height base 24b is in a position in the first peripheral direction R1 compared to the fixing projecting portion 23, and in the second peripheral direction R2 with respect to the second positioning protrusion portion 22. The position in the peripheral direction R of the third pedestal height 24c is in a position in the first direction R1 relative to the second projecting positioning portion 22.
    The pair of groups of pedestals 24A height is in positions spaced apart from each other in the peripheral direction R. There are no particular restrictions on the relative positions of the pair of groups of pedestal height 24A. For example, it is desirable for it to be symmetrical in rotation with respect to the axis of center C.
    The number of pedestals groups of height is not limited to 2. It can be equal to 1 or an arbitrary number (plural number) equal to 2 or more. The plurality of groups of height pedestals may be formed in rotational symmetrical positions of n-order rotational symmetry (where n is an integer of 2 or more) with respect to the center axis C.
    Solar cell terminals 25 are terminals performing electrical conduction between the motion circuit block 1 (comprising, for example, an oscillation circuit and a control circuit) and the solar cell 3. A pair of Solar cell terminals 25 are provided on the first main surface 2a of the main body 2A at different intervals in the peripheral direction R.
    At the outer peripheral surface 2c of the main body 2A is formed a plurality of engagement recesses 26. The engagement recesses 26 are formed over the entire thickness of the main body 2A. A plurality (e.g., six on the electronic timepiece 10 of Fig. 1) of engagement recesses 26 is formed at different intervals (preferably regular intervals) in the peripheral direction R.
    The number of commitment recesses is not limited to 6. It may be 1 or an arbitrary number (plural number) equal to 2 or more. The plurality of engagement recesses may be formed in rotational symmetrical positions of n-order rotational symmetry (n is an integer of 2 or more) with respect to the center axis C.
    The solar cell 3 operates a power generation portion converting sunlight from illumination or the like into electrical energy. The solar cell 3 is an element configured in the form of a plate. The solar cell 3 is arranged to cover the plate 2.
    The solar cell 3 has a main body 3A, a pair of first projecting portion groups 31, and a pair of conductive projecting portions 34.
    The main body 3A is configured substantially in circular form when viewed in a direction parallel to the center axis C. At the center of the main body 3A, an insertion hole 35 is formed through which the pointer shaft (s) 6 has passed.
    Each of the pairs of first groups of protrusions 31 has two displacement control protruding portions 32. The displacement control protrusions 32 are formed at an outer peripheral edge 3c of the main body 3A to protrude to the outside in the radial direction of the main body 3A. The two protruding displacement control portions 32 are located in close proximity to one another, and are spaced apart by an interval in the peripheral direction R.
    Referring to a first positioning recess 33 (first positioning receiving portion) for the recessed portion formed between the two protruding displacement control portions 32. The first positioning recess 33 is formed in a position allowing the locking of the first projecting protrusion 21 of the plate 2. The dimension of the first positioning recess 33 in the peripheral direction R is designed to make it possible to regulate any positioning deviation of the solar cell 3 when the first projecting part of 21 position of the plate 2 is inserted into the first positioning recess 33 and is locked there.
    The pair of first groups of projections 31 is located in positions spaced apart from each other in the peripheral direction R. There are no particular restrictions on the relative positions of the pair of first groups of protrusions 31 For example, it is desirable for them to be arranged in positions symmetrical in rotation with respect to the axis of center C.
    The number of first groups of projecting parts is not limited to 2. It may be equal to 1 or an arbitrary number (plural number) equal to 2 or more. The plurality of first groups of projecting portions may be formed in rotational symmetrical positions of order n rotation (where n is an integer of 2 or more) with respect to the center axis C.
    The protruding conduction portions 34 are formed at the outer peripheral edge 3c of the main body 3A to protrude outwardly in the radial direction of the main body 3A. The pair of protruding conduction portions 34 are spaced apart by an interval in the peripheral direction R. The conduction protrusions 34 abut the solar cell terminals 25 of the platen 2 to provide electrical conduction.
    The encircling piece 4 is equipped with a main body 4A and a plurality of encircling piece fixing parts 41. The encircling piece 4 is arranged on the solar cell 3.
    The main body 4A has a substantially circular configuration shape when viewed, for example, in a direction parallel to the center axis C. The main body 4A is, for example, configured so that it overcomes the outer periphery of the display plate 5. The main body 4A can abut the upper surface (the surface of the first axial direction side C1) of a portion of the solar cell 3 (for example, the first groups of protruding portions 31 and conductive projections 34).
    Each encircling piece fixing portion 41 has a main portion 42 and a fixing clip 43. The main portion 42 is formed at a second main surface 4b (the surface of the side of the second axial direction C2) to project in the second axial direction C2 (downwards in Fig. 1). The main portion 42 is, for example, configured as a plate perpendicular to the radial direction of the main body 4A. The main part 42 can be folded by elastic deformation in the direction of the thickness. The width of the main portion 42 (the dimension in the peripheral direction R) is determined so that it can penetrate into the engagement recess 26 of the plate 2.
    The fixing clamp 43 protrudes from the lower end of the main portion 42 inwardly in the radial direction of the encircling piece 4.
    Each encircling piece fixing portion 41 is arranged such that it can be inserted into the engagement recess 26 of the plate 2. The encircling piece fixing parts 41 are provided at the same time. number (six) as the engagement recesses 26, and are arranged at different intervals (preferably at equal intervals) along the peripheral direction R. The main portions 42 enter the engagement recesses 26 of the plate 2, and the securing clips 43 are locked to the plate 2 at the lower ends of the engagement recesses 26, by which the encircling piece fixing parts 41 regulate an upward movement (in the first axial direction C1) of the encircling piece 4.
    The encircling piece fixing portions 41 are locked to the plate 2, while the encircling piece 4 is fixed to the plate 2 in a state where it! compresses the solar cell 3 (for example, the first group of projections 31 and the conduction protrusions 34) from above. The protruding portions of conduction 34 of the solar cell 3 are compressed against the solar cell terminals 25 of the plate 2 by the encircling piece 4, whereby a reliable electrical conduction is provided between the protruding conduction parts 34 and solar cell terminals 25.
    The display plate 5 is, for example, a dial. The display plate 5 is located inside the encircling part 4 so as to cover the solar cell 3. The display screen 5 may be in contact with the solar cell 3 or may be spaced from the solar cell 3.
    The display plate 5 has a main body 5A, a plurality of groups of fixing projections 51, and a pair of displacement control projections 52. The display plate 5 is configured so that it allows the transmission of light necessary for recharging by the solar cell 3. For example, the display plate 5 is formed of a material allowing transmission of the light mentioned above. It is only necessary, for the display plate 5, to allow a transmission of sufficient light required for reloading. Even in the case where a non-light-transmitting material is employed, for example, a plurality of small holes may be formed through which light may be transmitted.
    The main body 5A can be configured in a substantially circular shape when viewed from a direction parallel to the center axis C. At the center of the main body 5A, an insertion hole 56 is formed through which the indicator needle shaft 6 has passed. A first main surface 5a of the main body 5A has, for example, a display area (not shown) formed around the entire periphery about the center axis C and indicating the time. In this display area, a plurality of graduations (indicators) is formed (not shown) indicating the time. The plurality of graduations is, for example, in predetermined positions around the center axis C, indicating the time by the indicator hands (not shown).
    Each of the projecting projection portions 51 has two projecting attachment portions 53. The projecting attachment portions 53 are formed at the outer peripheral edge 5c of the main body 5A to protrude outwardly in the radial direction. of the main body 5A. The two projecting attachment portions 53 are located in close proximity to one another, and are spaced apart by an interval in the peripheral direction R.
    Referring to a securing recess 54 (fixing receiving portion) for the recessed portion formed between the two projecting attachment portions 53. The securing recess 54 is formed in a position where it can be inserted into the protruding portion 23 for fixing the plate 2. The dimension in the circumferential direction R of the fixing recess 54 is designed such that the projecting fixing portion 23 of the plate 2 can be inserted into the fixing recess 54 for fixing the display plate 5 in position.
    The plurality of groups of projecting fixing parts 51 are arranged in positions spaced apart from one another in the peripheral direction R. The number of groups of projecting fixing parts 51 is the same as that of the fixing projections 23 platinum 2 (four).
    Displacement movement protruding portions 52 are formed at the outer peripheral edge 5c of the main body 5A to protrude outwardly in the radial direction of the main body 5A. Each protruding displacement-controlling protruding portion 52 is disposed in close proximity to one of the two protruding securing portions 53 constituting each securing projection group 51, and is spaced apart by an interval in the peripheral direction R of that protruding portion of fixation 53.
    Referring to the second positioning recesses 55 for the recessed portion formed between the protruding portion regulating the displacement 52 and the fixing projection portion 53. The number of second positioning recesses 55 is the same as the number of seconds projecting projections 22 of platen 2 (two). The second positioning recesses 55 are formed in positions where the second projecting projections 22 of the plate 2 can be locked there. The dimension of the second positioning recesses 55 in the peripheral direction R is designed such that when the second projecting parts 22 of the plate 2 penetrate into the second positioning recesses 55 to be locked therein, it is possible to regulate the positional deviation of the display plate 5.
    For example, the protruding fixing portions 53 and the displacement control protruding portion 52 abut the height pedestals 24 of the plate 2 to regulate a downward movement, while the display plate 5 is positioned in the sense of thickness. In the electronic timepiece 10 shown in FIG. 1, the two projecting attachment portions 53 respectively abut the first height pedestal 24a and the second height pedestal 24b, and the protruding movement-regulating portion 52 adjoins the third height pedestal 24c. Therefore, the display plate 5 positioned in the direction of the thickness.
    The pointer shaft 6 is arranged such that it projects in the first axial direction G1 (upwards in Fig. 1). The pointer shaft 6 has, for example, shafts for the hour hand, the minute hand, and the second hand (not shown). The hour hand, the minute hand, and the second hand are respectively fixed to these trees. The pointer shaft 6 is driven, for example, by a motor (not shown) in the movement 1.
    In what follows, a method of assembling the electronic timepiece 10 is described with reference to FIGS. 2-7.
    As shown in FIGS. 2 and 3, the solar cell 3 is mounted to the plate 2. The first projecting projections 21 of the plate 2 are locked at the first positioning recesses 33 of the solar cell 3, by which the solar cell 3 is positioned in a plane perpendicular to the axis C with respect to the plate 2. The protruding conduction parts 34 adjoin the solar cell terminals 25 of the plate 2 to provide electrical conduction.
    Then, as shown in FIGS. 4 and 5, the encircling piece 4 is mounted on the plate 2. The main parts 42 of the fixing parts of the encircling piece 41 penetrate into the engagement recesses 26 of the plate 2, and the lower ends of the fixing clamps 43 are locked to the plate 2 at the lower ends of the engagement recesses 26, whereby the encircling piece 4 is fixed to the plate 2. The encircling piece 4 is fixed to the plate 2 while compressing the solar cell 3 (for example, the first groups of projections 31 and the conduction protrusions 34) from above. The conduction protrusions 34 are compressed against the solar cell terminals 25 by the encircling piece 4, whereby reliable electrical conduction is provided.
    Then, as shown in FIGS. 6 and 7, the display plate 5 is mounted to the plate 2. The second projecting projections 22 of the plate 2 are locked to the second positioning recesses 55 of the display plate 5, by which the plate of 5 is positioned in its plane of positioning perpendicular to the axis C with respect to the plate 2. The projecting fixing portions 23 of the plate 2 are engaged in the fixing recesses 54, by means of which the display plate 5 is fixed to the plate 2.
    In this way, the electronic timepiece 10 shown in FIG. 1 is assembled.
    In the electronic timepiece 10, the solar cell 3 and the display plate 5 are positioned relative to the plate 2, so that it is possible to adjust the positioning of the solar cell 3 and the display plate 5 accurately in their respective positioning plane, perpendicular to the axis C. In addition, the display plate 5 is positioned in direct contact with the plate 2, so that it is possible to adjust the positioning of the display plate 5 accurately in the direction of the thickness. Thus, it is possible to design, for example, the spacing between the indicator needle and the display plate 5, which is advantageous in order to reduce the thickness of the electronic timepiece 10.
    In the electronic timepiece 10, the first positioning protruding parts 21 and the second positioning protruding parts 22 are formed on the plate 2, the first positioning recesses 33 in which the first positioning protruding parts 21 come engage are formed in the solar cell 3, and the second positioning recesses 55 in which the second projecting positioning portions 22 engage are formed in the display plate 5. Thus, compared to the case where protruding parts are formed on the solar cell and the display plate, and recesses for locking the projections are formed in the plate, the structure of the solar cell and the display plate is simplified, and its production is facilitated .
    In the electronic timepiece 10, the encircling piece 4 is provided in such a way that it is impossible for the solar cell 3 to rise, thus making it possible to adjust the positioning of the solar cell 3 with precision in the direction of the thickness. Furthermore, the encircling piece 4 is configured in a shape overlying the outer periphery of the display plate 5, whereby it is possible to prevent the display plate 5 from inadvertently detaching when seeking to house the movement 1, etc. in the case. In addition, the protruding conduction parts 34 of the solar cell 3 are compressed against the terminals of the solar cell 25 of the plate 2 by the encircling piece 4, so that it is possible to provide a reliable electrical conduction between the protruding conduction parts 34 and the terminals of the solar cell 25.
    In the electronic timepiece 10, the plate 2 has height pedestals 24 adjacent to the display plate 5 and determining the position in the thickness direction of the display plate 5, so that it is possible to improve the positioning accuracy in the direction of the thickness of the display plate 5.
    In the electronic timepiece 10, the projecting fixing parts 23 are formed on the plate 2, and the fixing recesses 54 in which are engaged the projecting fixing parts 23 are formed on the plate of FIG. display 5, so that it is possible to fix the display plate 5 reliably to the plate 2.
    The electronic timepiece 10 has the solar cell 3, so that it is possible to convert the sunlight, an illumination or the like into electrical energy and to use it.
    [0090] [Second Embodiment] [0091] In the following, a second embodiment is described, and the components common to those of the above embodiment will be indicated by the same reference numerals. However, their description will not be repeated.
    FIG. 8 is an exploded perspective view of an electronic timepiece 110 (timepiece) according to this second embodiment.
    As shown in FIG. 8, the electronic timepiece 110 is equipped with a movement 101 and the display plate 5. The movement 101 is equipped with a main body 101 A movement, a plate 102, a solar cell 103, the encircling piece 4, and pointer shaft (s) 6.
    In the solar cell 103, the positions in the peripheral direction R of the pair of first groups of protrusions 131 differ from those of the solar cell 3 of the electronic timepiece 10 of the first embodiment.
    Each of the pairs of first groups of projecting portions 131 has two displacement control protruding portions 132. Reference is made to the first positioning recess 133 (the first positioning receiving portion) for the recessed portion formed between the two protruding portions of displacement control 132. The first positioning recesses 133 are arranged in positions where the second projecting projections 22 of the plate 102 can be locked therein. The dimension in the peripheral direction R of the first positioning recesses 133 is designed so that it is possible to regulate the positioning differences of the solar cell 103 when the second projecting parts 22 of the plate 102 enter the first positioning recesses 133 and are locked therein.
    The plate 102 has a pair of height pedestals 124 in place of the pair of pedestals of height 24A of the electronic timepiece 10 of the first embodiment. The height pedestals 124 are formed on the first main surface 2a of the main body 2A to project in the first axial direction C1 (upwards in Fig. 1). The height bases 124 are located in immediate proximity to the projecting fixing parts 23.
    For example, the protruding fixing portions 53 and the displacement control protruding portion 52 abut the height bases 124 of the plate 2 to regulate the downward movement, the display plate 5 being then positioned in the sense of thickness.
    In the electronic timepiece 110, both the solar cell 103 and the display plate 5 are positioned relative to the platinel02, so that it is possible to adjust the positioning of the solar cell. 103 and the display plate 5 accurately in their respective positioning plane, perpendicular to the axis C. In addition, the display plate positioning 5 can be adjusted accurately in the direction of the thickness, such so that it is possible to design, for example, the spacing between the indicator needle and the small display plate 5, which is advantageous in order to reduce the thickness of the electronic timepiece 110.
    In the electronic timepiece 110, the solar cell 103 and the display plate 5 are positioned relative to the second positioning portion 22 common, so that, compared to the case where the projecting parts of the solar cell and the display plate are locked are different from one another, it is possible to improve the positioning accuracy of the solar cell 103 and the display plate 5. [0100] [Third Embodiment] [0101] In the following, a third embodiment will be described; the components which are common to those of the above embodiments are indicated by the same reference numbers, but their description will however be left aside.
    [0102] FIG. 9 is an exploded perspective view of an electronic timepiece 210 according to this third embodiment.
    As shown in FIG. 9, the electronic timepiece 210 is equipped with a movement 201 and the display plate 5. The movement 201 is equipped with a main movement body 201 A, the plate 2, an anti-magnetic plate 7 , the solar cell 3, the encircling piece 4, and the indicator pin shaft 6. The main motion body 201A contains an antenna 202.
    The anti-magnetic plate 7 has the function of suppressing the influence of an external magnetic field on the main body of movement 201A (for example, a motor). The anti-magnetic plate 7 is formed, for example, of a metal (conductive material) such as permalloy, pure iron, or stainless steel. It is desirable for the anti-magnetic plate 7 to be formed of a magnetic material (in particular, a material with high magnetic permeability). The anti-magnetic plate 7 is arranged on the lower surface (platinum side 2) of the solar cell 3.
    The anti-magnetic plate 7 has a main body 7A, a pair of first groups of projections 71, and a pair of groups of guide projections 74. The main body 7A is configured in substantially circular form when is seen in a direction parallel to the axis of center C. At the center of the main body 7A, an insertion hole 77 is formed, through which the pointer pin 6 passes.
    The main body 7A has a notch 78. The notch 78 is formed at a portion of the peripheral edge of the main body 7A. The notch 78 is formed such that the anti-magnetic plate 7 avoids a position in which it covers the antenna 202 when the antenna 202 is viewed in a direction parallel to the center axis C (i.e. say seen in the direction of the thickness of the plate 2). Thanks to the notch 78, it is possible to prevent the antenna 202 from being covered by the anti-magnetic plate 7. Thus, it is possible to improve the transmission / reception characteristics of the antenna 202. .
    Each of the pairs of first groups of protrusions 71 has two displacement control protrusions 72. The displacement control protrusions 72 are formed at an outer peripheral edge 7c of the main body 7A and protrude to the outside in the radial direction of the main body 7A. The two displacement control protrusions 72 are in close proximity to each other, and are spaced apart by an interval in the peripheral direction R.
    Referring to the third positioning recess 73 (the third positioning receiving portion) for the recessed portion formed between the two projecting displacement protruding portions 72. The third positioning recess 73 is arranged in a position where the first projecting portion 21 of the plate 2 can be locked. The dimension in the circumferential direction R of the third positioning recess 73 is designed so that when the first projecting projection 21 of the plate 2 penetrates into the third positioning recess 73 and is locked therein, it is possible to regulate the positioning gap of the anti-magnetic plate 7.
    The pair of first groups of protrusions 71 are disposed at spaced apart locations in the peripheral direction R. There are no particular restrictions on the relative positions of the pair of first groups. For example, it is desirable for them to be in symmetrical positions in rotation with respect to the axis of center C.
    The number of first groups of projecting parts is not restricted to 2. It may be equal to 1, or an arbitrary number equal to 2 or more (plural number). The plurality of first groups of projecting portions may be arranged in symmetrical rotational positions, in n-order rotational symmetry (where n is an integer of 2 or more) with respect to the center axis C.
    Each of the projecting guide portions 74 has two guide projections 75. The guide projections 75 are formed at an outer peripheral edge 7c of the main body 7A and protrude outwardly in the radial direction of the main body 7A. The two projecting guide portions 75 are located in close proximity to one another, and are spaced apart by an interval in the peripheral direction R.
    For the recessed portion formed between the two projecting guide portions 75, reference will be made to a guide groove 76 (guide receiving part). The guide groove 76 is arranged in a position where the projecting projection 23 of the plate 2 penetrates. The dimension of the guide groove 76 in the circumferential direction R is designed so that the projecting projection 23 of the platen 2 can enter the guide groove 76 and be locked there. In the electronic timepiece 210, even when the third positioning recess 73 is deformed due to a shock due to a fall or the like, the projecting projection 23 is locked to the guide groove 76, allowing avoid any detachment of the anti-magnetic plate 7.
    The pair of guide projecting groups 74 is disposed in spaced apart positions in the peripheral direction R. There are no particular restrictions on the relative positions of the pair of groups For example, it is desirable for them to be in positions symmetrical in rotation with respect to the axis of center C.
    The number of groups of prominent guide portions is not restricted to 2. It may be 1 or an arbitrary number (plural number) equal to 2 or more. The plurality of groups of guide projections may be arranged in rotational symmetrical positions of order n (n being an integer of 2 or more) with respect to the center axis C.
    The anti-magnetic plate 7 is electrically connected to a ground socket (conduction portion) provided on the main body of movement 201 A. Therefore, it is possible to remove any electrostatic noise. The anti-magnetic plate 7 and the grounding plug can be in direct contact with each other, or via a conductive element.
    Lesfig. 10 and 11 illustrate an example of the structure in which the anti-magnetic plate 7 and the grounding are in direct contact with each other. In the structure shown in FIG. 10, the ground socket 203 is a protrusion formed on a metal plate 205 of the main motion body 201 A, and abuts the lower surface of the anti-magnetic plate 7. The ground socket 203 is configured such that its upper surface is convex and its lower surface is concave (for example, in a semi-cut-out configuration, that is to say not causing perforation). In the structure shown in FIG. 11, the ground socket 204 is an elastic member extending from a metal plate 206 of the main motion body 201 A, and which abuts the lower surface of the anti-magnetic plate 7. In the structures shown in FIGS. 10 and 11, the terrestrial conductive portions 203 and 204 are respectively integrally formed with the metal plates 205 and 206. Because of the elastic force that they apply, the terrestrial conduction parts 203 and 204 can guarantee the maintenance resting against the elastic plate 7.
    While in figs. 10 and 11, the grounding has the support structure mentioned above (the protruding part or the elastic element), this support structure can be arranged on the anti-magnetic plate 7. In other words, it is possible, for example, to adopt a structure according to which a projecting portion of curved shape in a semi-cut configuration provided on the anti-magnetic plate 7 adjoins the metal plate of the main body of movement 201 A. In addition, it is also possible to adopt a structure according to which the elastic element provided on the anti-magnetic plate 7 adjoins the metal plate of the main body of movement 201 A. In addition, the support structure mentioned above (the protruding part or the elastic member) can be provided on both the anti-magnetic plate 7 and the main movement body 201 A.
    In the case where the adopted structure is one in which a conduction element is provided between the anti-magnetic plate 7 and the grounding, it is possible to use a dial washer, a washer, a flat spring. or the like as a conduction element.
    In what follows, we will describe a method of assembly of the electronic timepiece 210 with reference to FIGS. 12 and 13.
    As shown in FIGS. 12 and 13, the antimagnetic plate 7 is mounted to the plate 2. The first projecting projections 21 of the plate 2 are locked to the third positioning recesses 73. The projecting fixing portions 23 of the plate 2 are locked to the grooves of Next, as in the case of the assembly method of the first embodiment, the solar cell 3, the encircling piece 4, and the display plate 5 (see FIGS. ). In this way, the electronic timepiece 210 shown in FIG. 9 is assembled.
    In the electronic timepiece 210, the antimagnetic plate 7, the solar cell 3, and the display plate 5 are positioned relative to the plate 2, so that the anti-magnetic plate 7, the solar cell 3, and the display plate 5 can be accurately adjusted in a position in their respective positioning plane perpendicular to the C axis.
    The technical framework of the present invention is not limited to the embodiments described above, but allows various modifications without departing from the scope or spirit of the present invention.
    [0123] Whereas in the electronic timepiece 10 shown in FIG. 1, the projections 21 and 22 are formed on the plate 2, and the positioning recesses 33 and 55 are respectively formed in the solar cell 3 and the display plate 5, the timepiece of this embodiment. is not restricted to such a configuration. For example, the projecting positions could be respectively arranged on the solar cell and the display plate, and the positioning recesses in which are intended to engage the projecting portions of position can be formed in the plate. In this case, the protruding position portions formed on the solar cell and the display screens are respectively "the first positioning receiving portion" and "the second positioning receiving portion," and the positioning recesses of the platen. are the "positioning part." [0124] While in the electronic timepiece 10 shown in FIG. 1, the protruding fixing portions 23 of the plate 2 are engaged in the fixing recesses 54 of the display plate 5, the timepiece of this embodiment is not limited to this type of architecture. It would also be possible to adopt a structure in which the protruding portions (attachment receiving portions) of the display plate would be engaged in the recesses (display plate securing portion) of the platen.
    [0125] Whereas in the electronic timepiece 10 shown in FIG. 1, the display plate 5 is arranged on the solar cell 3, in the timepiece of this embodiment, the solar cell could also be arranged on the display plate.
    While the electronic timepiece 10 shown in FIG. 1 has the encircling piece 4 to retain the solar cell 3, the timepiece of the embodiment can adopt a construction devoid of encircling piece.
    While the electronic timepiece 10 shown in FIG. 1 has the solar cell 3, the timepiece of the embodiment may employ, in place of the solar cell 3, another plate such as an antenna consisting of a plate-shaped coil or a display device organic plate-shaped EL (acronym for ElectroLuminescence).
    In the electronic timepiece 10 shown in FIG. 1, the pair of first positioning recesses 33 is locked to the first projecting portions of position 21, and the solar cell 3 is thus positioned by
    权利要求:
    Claims (11)
    [1]
    2. The pair of second positioning recesses 55 is locked to the second positioning protrusions 22, and the display plate 5 is thus positioned with respect to the plate 2. The timepiece of FIG. this embodiment is not limited to this type of architecture. It is also possible to adopt an architecture according to which at least one (and in particular only one) of the plurality of first positioning recesses is locked to one of the position protruding parts and in which at least one (and in particular only one) ) among the plurality of second positioning recesses is locked to one of the projecting projections. For example, it is also possible to adopt an architecture in which only part of the plurality of first positioning recesses are locked to the first positioning protrusions and in which only part of the plurality of second locating recesses is locked to the first positioning recesses. second projecting protruding parts. In the electronic timepiece 110 shown in FIG. 8, the pair of first positioning recesses 133 is locked to the second position protruding parts 22, and the solar cell 103 is thus positioned with respect to the plate 2. The pair of second positioning recesses 55 is locked at the second projections of positioning 22, and the display plate 5 is thus positioned relative to the plate 2. [0131] The timepiece of this embodiment is not limited to this type of architecture. It is also possible to adopt an architecture according to which at least one of the plurality of first positioning recesses of the solar cell and at least one of the plurality of second positioning recesses of the display plate are locked to a recess of common positioning. For example, it is also possible to adopt an architecture in which part of the plurality of first positioning recesses and a portion of the plurality of second positioning recesses are locked to a second common positioning protrusion. claims
    A timepiece (10) comprising: a platen (2) having one or more locating portions (21; 22); a plate (3) having one or more first positioning portions (33) to be locked to the positioning portion (21), and arranged to cover the platen (2); and a display plate (5) having one or more second positioning receiving portions (55) to be locked to the positioning portion (21) and arranged to cover the plate (3).
    [2]
    2. Timepiece (10) according to claim 1, the positioning parts (21) being protrusions formed on the plate (2); and the first positioning receiving portions (33) and the second positioning receiving portions (55) being recesses for locking to the positioning portion (21).
    [3]
    3. Timepiece (10) according to claim 1 or 2, further comprising a encircling piece (4) compressing the plate (3) against the plate (2).
    [4]
    4. Timepiece (10) according to one of claims 1 to 3, wherein a base adjacent to the display plate (5) and determining the position in the direction of the thickness of the display plate ( 5) is formed on the plate (2).
    [5]
    5. Timepiece (10) according to one of claims 1 to 4, wherein a fixing portion of the display plate fixing the display plate (5) is formed on the plate (2); and a fixing receiving portion to engage the fixing portion of the display plate is formed on the display plate (5).
    [6]
    6. Timepiece (10) according to one of claims 1 to 5, wherein the plate (3) is a solar cell (3).
    [7]
    7. Timepiece (10) according to one of claims 1 to 6, wherein at least one of the first positioning receiving parts (33) and at least one of the second positioning receiving parts (55) are locked at a common positioning part (21).
    [8]
    8. Timepiece (10) according to one of claims 1 to 7, wherein an anti-magnetic plate (7) is provided platinum side (2) of the plate (3); and the anti-magnetic plate (7) has one or more third positioning receiving portions to be locked to the positioning portion (21).
    [9]
    9. Timepiece (10) according to claim 8, further comprising an antenna, and wherein the anti-magnetic plate (7) is provided with a notch preventing a position where it would cover the antenna in the direction of the thickness of the plate (2).
    [10]
    10. Timepiece (10) according to claim 8 or 9, wherein the anti-magnetic plate (7) is electrically continuous with a grounding (203) provided platinum side (2).
    [11]
    11. Timepiece (10) according to one of claims 8 to 10, wherein a fixing portion of the display plate fixing the display plate (5) is formed on the plate (2); and the anti-magnetic plate (7) has a guide receiving portion to be locked to the display plate attachment portion.
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    同族专利:
    公开号 | 公开日
    CN108398875A|2018-08-14|
    US10824115B2|2020-11-03|
    US20180224805A1|2018-08-09|
    CN108398875B|2022-01-14|
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    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    JP2017019236|2017-02-06|
    JP2017214521A|JP6469816B2|2017-02-06|2017-11-07|clock|
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