• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
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  • 优先权
    • 专利摘要:
    SHAVER BLADE CARTRIDGE, SHAVER AND METHOD OF MANUFACTURING A SHAVER BLADE CARTRIDGE This is a razor blade cartridge (1), a shaver comprising such a razor blade cartridge and a method of manufacturing such a cartridge of razor blade comprising a housing (9) extending along a longitudinal axis (XX) having a top side (11) and a bottom side (13) opposite the top side (11) and to the first and second longitudinal sides (15, 17). The razor blade cartridge further comprises a primary cutting blade (35) mounted in the housing (9) between the first and second longitudinal sides (11, 13), and having a cutting edge (41), a primary cap (53). ), a primary shield (55), the primary shield (55) being located in front of the cutting edge (41) and a finishing element (73) mounted on the housing (9). The primary cover (53) is provided on a rear element (57), said rear element (57) being fitted to the housing (9), and the finishing element (73) is sandwiched between the housing (9) and the primary cover (53).
    公开号:BR112016017269B1
    申请号:R112016017269-8
    申请日:2014-02-27
    公开日:2021-05-04
    发明作者:Ioannis Bozikis；Georgios Georgakis；Phaedon Papageorgis；Dimitrios Efthimiadis；Vasileios Davos；Georgios Koulourias；Petros Polychronidis
    申请人:Bic-Violex Sa；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The present invention relates to razor blade cartridges, razors having such razor blade cartridges, and the method of manufacturing such razor blade cartridges.
    [002] In particular, the present invention is related to a razor blade cartridge comprising: - a housing that extends along a longitudinal axis having a top side and a bottom side opposite the top side and first and second longitudinal sides each extending longitudinally along the longitudinal axis between the top and bottom sides, - a primary cutting blade mounted in the housing between the first and second longitudinal sides, and which has a cutting edge, - a primary cover, where the primary cover is located at the rear of the cutting edge, - a primary guard, where the primary guard is located at the front of the cutting edge, and - a finishing element, mounted on the housing, which has a finishing edge, where the finishing edge and cutting edge are opposite. In other words, the finishing edge and cutting edge are located facing towards the housing. go the opposite direction. BACKGROUND OF THE INVENTION
    [003] The patent document US6276061 discloses a razor blade cartridge comprising a housing in which primary blades and an additional finishing blade are mounted. The razor blade cartridge housing is a one-piece frame and comprises slots into which the primary blades and additional finishing blade are mounted and secured. The gripping of the additional finishing blade in the housing leads to important manufacturing tolerances and the manufacturing method being complicated to implement. The time and costs of manufacturing the razor blade cartridge are increased in this way.
    [004] The patent document WO2005011930 also discloses a razor blade cartridge having a primary shield, a primary cap, a finishing cap and a finishing comb shield. The razor blade cartridge comprises a finishing blade and primary blades. The finisher blade is part of a housing mounted assembly comprising a finisher blade carrier. The finishing set including the finishing blade and finishing guard is attached to the back of the housing. Such a razor blade cartridge allows to clamp the finisher blade and, more precisely, the finisher blade assembly after the housing fabrication process and after positioning the primary blades. However, the razor blade cartridge of WO2005011930 comprises the finishing assembly, which is one more piece and would lead to increase in the total weight and dimensions of the razor blade cartridge.
    [005] The embodiments of the present invention are intended to mitigate the disadvantages discussed above. The manufacture of this razor blade cartridge is especially simpler without affecting the quality of the shave. DESCRIPTION OF THE INVENTION
    [006] For this purpose, according to an embodiment of the invention, such a razor blade cartridge is distinguished by the fact that the primary cover is provided on a rear element, said rear element being fitted into the housing, and the finishing element is sandwiched between the housing and the primary cover.
    [007] With these features, no member or body specific to the finish element is required to secure the finish element to the housing. Furthermore, the rear element can be easily attached to the housing without any use of special tools. Furthermore, the finishing element is integrated into the razor blade cartridge in an aesthetic way. The finishing element is thus held tightly in position. Also, less material is used as raw material for roofing.
    [008] In some embodiments, a person of ordinary skill in the technique may also use one or more of the following features: - the primary cutting blade extends along the longitudinal axis; the primary cutting blade thus extends along the same direction as the housing, which allows for a reduction in the size of the razor blade cartridge if necessary; - the finishing element extends along the longitudinal axis; the housing and the finishing element both extend along the same geometric axis; - the finishing element comprises a finishing blade holder and a finishing blade, the finishing blade comprising the finishing edge, and the finishing blade being supported by the finishing blade holder; in other words, the finisher blade is supported by a finisher blade holder that allows for some strength; the finisher blade could also be a bent blade (in this case, no finisher blade holder is needed); - the edge of the finisher blade extends in a plane from the edge of the finisher blade; - the primary cutter blade extends in a cutter blade plane; - the angle provided between the finishing edge plane and the finishing plane is between 10° and 40°, and is preferably equal to 20°; such a range of angle allows for a nice and effective finish; - the housing is additionally equipped with a finishing protection located in front of the finishing edge; finish protection provides a nicer finish; - the finishing edge extends in a finishing edge plane; - finishing protection defines a finishing plane; - the rear element is fitted by pressing into the housing; snap fit allows for a solid set; - the housing comprises a recess located between the primary cutting blade and the first longitudinal side; - the rear element comprises a T-shape with a first arm extending into the undercut, and a second arm extending in continuity with the top side of the housing; - the first arm comprises a plurality of legs extending in a direction transverse to the second arm; - wherein the housing comprises a plurality of recesses located between the primary blade and the second longitudinal side, and each leg of the first arm being press-fitted into a corresponding recess of the housing; - the rear element is press-fitted into the housing; - the housing comprises a recess located between the primary cutting blade and the first longitudinal side; - the rear element is press-fitted into the recess; - the rear element comprises a V-shape with two arms; - the first arm extends in the lowering; - the second arm extends in continuity from the top side of the housing; - the first arm comprises a hook, in which the undercut comprises a protrusion, and the hook cooperates with the protrusion; hook-protrusion cooperation allows for effective snap fit; the second arm of the rear element press-fitted into the housing defines a slit with the housing, the finishing blade holder extending into the slit; - the razor blade cartridge further comprises two clips which retain the primary cutting blade in the housing; - the finishing element is shorter in length than the distance between the two clamps along the longitudinal geometric axis; the fixation of the finishing elements is independent of the clamps; the finishing elements can be, however, at least as long as the distance between the two clamps along the longitudinal axis; the fixing of the finishing element being, in any case, independent of the clips; - the rear element is additionally provided with a finishing cap located at the rear of the finishing edge; the finish cap is directly integrated with the rear element; - finishing protection defines a finishing plane; - the finishing element at rest has a negative exposure in relation to the finishing plane and, preferably, the exposure is equal to -50 μm to -100 μm (micrometers); - the finishing element at rest has a positive exposure in relation to the finishing plane and, preferably, the exposure is equal to 120 μm (micrometers); such exposure allows for a pleasant and effective finish; the finishing element at rest can also have a negative exposure in relation to the finishing plane; for example, the negative exposure can be around 50 µm; - the distance between the finishing edge and the finishing guard is between 400 µm and 650 µm (micrometers) and is preferably 580 µm or 590 µm (micrometers), or is preferably 410 micrometers; such a distance allows for a nice and effective finish as well; - the rear element is additionally provided with a finishing cap located at the rear of the finishing edge; - the rear primary cap and/or the finishing cap is (are) provided with a lubricating strip; - the housing comprises through holes, which are provided in addition to the finishing blade: the through holes allow the through flow of rinsing water;
    [009] The embodiments of the present invention are also directed to a razor comprising a handle and a razor blade cartridge as described above, wherein the razor blade cartridge is connected to the handle.
    [0010] Embodiments of the present invention are also directed to a method of manufacturing a razor blade cartridge comprising the steps of providing a housing that extends along a longitudinal axis having a top side and a side bottom opposite the top side and the first and second longitudinal sides, each extending longitudinally along the longitudinal axis between the top and bottom sides; provide primary protection; mount a primary protection to the housing, provide a finishing element that has a finishing edge; placing the finishing element in the housing, the housing comprising protrusions which are arranged to hold the finishing element, which provides a rear element; secure the finishing element to the housing by fitting the rear element into the housing; mount a primary cutting blade in the housing between the first and second longitudinal sides, with the primary cutting blade having a cutting edge, so that the cutting edge and the finishing edge are opposite, with the primary protection being located in the part front of the cutting edge. In another embodiment, the primary shield is in one piece with the housing; in this case, there need not be a step in which the primary guard is fitted to the housing. In either case, the order of steps of the methods as defined above must be adhered to to properly achieve the manufacture of the razor blade cartridge. BRIEF DESCRIPTION OF THE DRAWINGS
    [0011] Other features and advantages of the embodiments of the present invention will readily appear from the following description of one of its embodiments, provided as non-limiting examples, and shown in the attached figures.
    [0012] Figure 1 is a perspective view of a razor blade cartridge according to the invention.
    [0013] Figure 2 is a cross-sectional view of the razor blade cartridge of Figure 1 comprising a rear element press-fitted into the housing according to a first embodiment.
    [0014] Figure 3 is a top view of the razor blade cartridge in Figure 1.
    [0015] Figure 4 is a top view of the razor blade cartridge housing according to the first embodiment with undercuts.
    [0016] Figure 5 is a side view of the rear element of Figure 2.
    [0017] Figure 6 is a detailed view of a protrusion located in the recesses of the housing of Figure 4.
    [0018] Figure 7 is a cross-sectional view of the razor blade cartridge of Figure 1 comprising a rear member press-fitted into the housing according to a second embodiment.
    [0019] Figure 8 is a detailed view VIII of Figure 4 of a protrusion provided in the housing towards one side.
    [0020] Figure 9 shows a perspective view of a razor comprising a handle and a razor blade cartridge, according to the invention.
    [0021] Figure 10A is a perspective view of the detail of Figure 8 according to an embodiment, where the finishing blade is placed.
    [0022] Figure 10B is a sectional view of Figure 10A according to line XB-XB.
    [0023] Figure 11A is a perspective view of the detail of Figure 8 according to another embodiment, where the finishing blade is placed.
    [0024] Figure 11B is a sectional view of Figure 11A according to line XIB-XIB.
    [0025] In the different Figures, the same reference signs designate similar or similar elements. DESCRIPTION OF ACHIEVEMENTS OF THE INVENTION
    [0026] Figure 1 shows a razor blade cartridge 1 according to the invention. The razor blade cartridge 1 is adapted to be attached to a handle to form a wet razor blade 3 as shown in Figure 12. The razor blade cartridge 1 is provided with one or more blades 5. The blades 5 are not driven by a motor relative to the razor blade cartridge 1.
    [0027] As seen in Figure 9, the razor blade cartridge 1 can be attached to a handle 7 that extends in a handle direction between a proximal portion Pp and a distal portion Dp. The handle 7 can pivot with respect to the razor blade cartridge 1. The handle can pivot with respect to the razor blade cartridge from a rest position, in which the handle is free of restrictions towards two opposite directions. In another embodiment, the handle can pivot from a rest position toward a single direction. In other embodiments, the handle 7 can also be fixed with respect to the razor blade cartridge 1. The handle direction can be curved or include one or several straight portions. The razor blade cartridge 1 can be releasably connected, for example, to the handle 7 via a lock and release mechanism as detailed from this point on.
    [0028] As depicted in the Figures, the razor blade cartridge 1 comprises a housing 9. The housing 9 extends along a longitudinal axis X-X. Seen from above, housing 9 has a general rectangle shape. However, in some embodiments, the overall shape of housing 9 may be different and, for example, housing 9 may have an oval shape, a square shape, or a circular shape. The housing 9 comprises a top side 11, a bottom side 13 opposite the top side 11 and a first and second longitudinal side 15, 17. For example, the bottom side 13 is adapted to be disposed in front of the handle. 7, while the top side 11 is arranged opposite the bottom side 13. The top side 11 and the bottom side 13 can be parallel to each other.
    [0029] As best seen in Figure 1, the first longitudinal side 15 extends along the longitudinal axis X-X. The second longitudinal side 17 and the first longitudinal side 15 face each other. The second longitudinal side 17 may be approximately parallel to the first longitudinal side 15, especially when the first and second longitudinal sides 15, 17 are flat. However, the first and second longitudinal sides 15, 17 may also have sudden or noticeable opposite slopes. The first and second longitudinal sides 15, 17 can also have curved surfaces. The second longitudinal side 17 also extends along the X-X longitudinal axis. The first and second longitudinal sides 15, 17 each extend in a lateral direction Z along a lateral axis ZZ, between the top side 11 and the bottom side 13 of the housing 9. The lateral axis Z-Z intersects the longitudinal axis XX. For example, the longitudinal axis X-X and the lateral axis Z-Z can be orthogonal to each other.
    [0030] The housing 9 may also comprise, as best seen in Figures 1 and 3, the first and second lateral sides 19, 21 extending between the first and second longitudinal sides 15, 17, along a geometric axis YY cross section. The transverse geometry axis Y-Y is transverse to the longitudinal axis X-X. The transverse geometry axis Y-Y can be orthogonal, for example, to the longitudinal axis X-X and the lateral axis Z-Z. The first and second lateral sides 19, 21 are arranged in the lateral direction Z, between the top side 11 and the bottom side 13. The first and second lateral and longitudinal sides 15, 17, 19, 21 together form the surface exterior of housing 9.
    The first and second lateral sides 19, 21 both join the longitudinal ends 23, 25 of the first and second longitudinal sides 15, 17. Similarly, the first and second longitudinal sides 15, 17, both , join the free ends 27, 29 of the first and second side sides 19, 21. The housing 9 may comprise a plastic material. However, other materials can be used. For example, the housing can comprise a metallic material. Furthermore, the housing can be made from a combination of two or more different materials. For example, one part of the housing can be made of a first material, while the other part of the housing is made of a second material.
    [0032] The housing 9 may include, for example, on the bottom side 13, a connection mechanism 31 adapted to connect to the handle 7. The connection mechanism 31 may thus allow the release and/or securing of the cartridge of razor blade 1 to handle 7.
    [0033] The housing 9 also comprises a blade receiving section 33, as depicted in Figure 1. The blade receiving section 33 or blade receiving area may have an overall rectangle shape seen from a top view . The blade receiving section 33 is disposed on the top side 11 of the housing 9. The blade receiving section 33 defines an undercut and is adapted to receive at least one primary cutting blade 35. In other words, the blade cartridge razor 1 comprises at least one primary cutting blade 35. The primary cutting blade 35 is mounted in housing 9 between the first and second longitudinal sides 15, 17, and having a cutting edge 41.
    [0034] As depicted in Figures 1, 2, 3 and 7, the razor blade cartridge 1 comprises five primary cutting blades. However, in other embodiments, razor blade cartridge 1 may comprise more or less than five primary cutting blades 35. For example, razor blade cartridge 1 may comprise three primary cutting blades.
    [0035] The primary cutting blades 35 are mounted in the housing 9 in the blade receiving section 33 between the first and second longitudinal sides 15, 17 of the housing 9 and between the first and second lateral sides 19, 21 of the housing 9. As shown in Figures 1 and 3, each primary cutter blade 35 extends longitudinally along a geometric axis of the cutter blade. For example, the cutting edge geometry axis C-C coincides with the longitudinal axis X-X. Each primary cutting blade 35 comprises a first and second end 37, 39 along the longitudinal axis XX, and is directed to the first longitudinal side 15. The first end 37 of the primary cutting blades 35 is directed to the first lateral side 19 of the housing 9, while the second end 39 of the primary cutting blade 35 is directed towards the second lateral side 21 of the housing 9. Each primary cutting blade 35 comprises a cutting edge 41. The cutting edge 41 extends along the geometric axis of the blade. cutting CC. The cutting edge 41 of the primary cutting blade 35 is accessible on the top side 11 of the housing 9 for cutting hair during a "main" or "primary" shave.
    [0036] For example, the primary cutting blades 35 are L-shaped as depicted in Figures 2 and 7. The primary cutting blades 35 thus have a cutting edge portion 43, an oriented portion 45 and a flexed portion 47 that is intermediate to the cutting edge portion 43 and the oriented portion 45. The primary cutting edge portion 43 extends along a geometric axis of the cutting edge portion. Advantageously, the geometric axis of the cutting edge portion of all the cutting blades 35 are positioned parallel to each other.
    [0037] Each primary cutting blade 35 can be freely mounted in the housing 9. More precisely, the primary cutting blades 35 are movably mounted in the blade receiving section 33. Each primary cutting blade 35 is, for example, supported by two elastic fingers. The elastic fingers can be molded as a single piece with the housing 9 and may extend in the blade receiving section 33 towards each other and upward from both lateral sides 19, 21 of the housing 9. As shown in Figure 2, the oriented portions 45 of the primary cutting blades 35 are slightly slidably oriented in the slots 49 provided in the housing 9. For example, the primary cutting blade 35 may be provided with its cutting edge 41 fixed to a blade holder 51 which comprises the oriented portion 45 and the flexed portion 47. In that case, the blade holder 51 is carried by the elastic fingers.
    [0038] However, in some other embodiments (not shown in the Figures) the primary cutting blades can be flexed blades, as described, for example, in patent application WO2013/050606, or curved blades.
    [0039] According to the invention, the razor blade cartridge 1 comprises a primary cap 53. The primary cap 53 is located at the rear of the cutting edge 41. The primary cap 53 is located towards the first longitudinal side 15. The razor blade cartridge 1 also comprises a primary shield 55. The primary shield 55 is located in front of the cutting edge 41. The primary shield 55 is located towards the second longitudinal side 17.
    [0040] As shown in Figures 1, 2, 3 and 7, the primary cover 53 is provided on a rear element 57.
    [0041] According to a first embodiment, as depicted in Figures 2 and 5, the rear member 57 has a T-shape with two arms 59, 61. The first arm 59 extends transversely from the second arms 61. More precisely , the second arm 61 extends along a direction that is orthogonal to the direction of extension of the first arm 59. One end of the first arm 59 is attached to a middle portion of the second arm 61.
    [0042] According to a second embodiment, as revealed in Figure 7, the rear element 57 may have a V-shape with two arms 59, 61. The first and second arms 59, 61 extend along a first and a second direction. The first and second directions are approximately orthogonal. However, the first and second directions can define an angle other than 90°, which can be an acute or an obtuse angle.
    [0043] As depicted in Figures 2 and 7, the rear member 57 extends along the longitudinal geometric axis XX between a first and second free end 63, 65. For example, the first free end 63 of the rear member 57 is located towards the first end 37 of the primary cutting blade 35, while the second free end 65 of the rear member 57 is located towards the second end 39 of the primary cutting blade 35. The length of the rear member 57 is less than the length of the housing 9 along the XX longitudinal axis.
    The second arm 61 is preferably provided with the primary cover 53. The primary cover 53 is, for example, provided with a lubricating strip used during the "main" scraping. The second arm 61 extends outside the housing 9. The second arm 61 extends on the top side 11 of the housing 9.
    [0045] More particularly, the second arm 61 extends outside the housing 9, and may form with the outer surfaces of the housing 9, for example, with the top side 11 of the housing 9, a continuous surface.
    [0046] According to the first embodiment, shown in Figure 2, the first arm 59 is fitted by pressing into the housing. The first arm 59 comprises a leg 59' which cooperates with an undercut 67. The undercut 67 is located between the primary cutting blade 35 and the first longitudinal side 15. More precisely, the first arm 59 comprises a plurality of legs 59', being which leg 59' cooperates with a dedicated recess 67. As shown in Figures 4 and 5, the first arm 59 comprises four legs 59' which are press-fitted into the recesses 67 provided in the housing 9. For example, the number of recesses 67 may be of at least two and is preferably of four. A leg 59' and a recess 67 form a press fit pair. Each leg 59' corresponds to a corresponding undercut 67. In this way, four press-fit pairs are formed, which allows to increase the retaining pressure of the rear element 57 in the housing 9. by pressing can be provided. For example, the first leg may comprise only three legs, each of the three legs cooperating with a dedicated lowering. In an alternative embodiment, the recess can be provided on the rear element while the leg is provided on the housing.
    [0047] Each recess 67 is defined by an interior wall. The interior wall of the recess may be provided with protrusions 68. As depicted in Figure 6, the triangular protrusions 68 may be provided to interact when the rear member 57 is pressed into position. However, the bulge 68 can have other shapes. Protrusions 68 are permanently deformed when rear member 57 is press-fitted into housing 9. Protrusions 68 thus add clamping force to further secure rear member 57 in place. In other words, the protrusions 68 will be plastically deformed by the legs 59' of the rear member 57 when the rear member 57 is secured to the housing 9. The rear member 57 and the housing 9 may comprise a plastic material. These protrusions 68 allow the material elastic limit of the rear member 57 and the housing 9 to be kept below the failure value.
    [0048] According to the second embodiment, as shown in Figure 7, the first arm 59 is press-fitted in the housing 9. More precisely, the first arm 59 cooperates with a recess 67 provided in the housing 9. The recess 67 is located between the primary cutting blade 35 and the first longitudinal side 15. The first arm 59 comprises a hook 69 which cooperates with a protrusion 71 provided in the recess 67. The hook 69 is provided especially at the free end of the first arm 59. The cooperation of the hook 69 and the bulge 71 form the snap fit, i.e. a clamping action effected only by the inherent resistance to deformation of the material of the hook 69 and/or the bulge 71. The bulge 71 and the rear member 57 may comprise a plastic material deformable. However, other materials that comprise inherent resistance to deformation to form a press-fit connection can be used. In other embodiments, the first arm 59 can be provided with a recess that cooperates with a protrusion provided in the housing 9. The protrusion shape may be a hook or other shapes that allow a snap fit. For example, the housing can be provided with an arm with a hook that cooperates with a cavity or a hole provided in the rear element.
    [0049] As shown in Figures 2 and 7, a finishing element 73 is sandwiched between the rear element 57 and the housing 9 as to allow a finishing scrape with the razor blade 3. More particularly, the rear element 57 and the The housing defines a recess or slot 74 in which the finishing member 73 extends and is secured by the rear member 57 which is fitted to the housing 9. The finishing member 73 may extend along the longitudinal axis XX.
    The finishing element 73 has a finishing edge 75. The finishing edge 75 and the cutting edge 41 of the primary cutting blade 35 are opposite. In other words, the finishing edge 75 and the cutting edge 41 are located facing the opposite direction. For example, the finishing edge 75 is directed towards the bottom side 13 of the housing 9, while the cutting edge is directed beyond the top side 11 of the housing 9.
    [0051] As shown in Figures 2 and 7, the finishing element 73 comprises a finishing blade 81. The finishing element 73 may be similar to the primary cutting blade 35. For example, the finishing element 73 may have the same shape than the primary cutting blade 35.
    [0052] In a possible embodiment, the finishing blade 81 may have another shape or dimensions other than the primary blade. It can have an especially shorter blade length. The finishing blade allows for better scraping of skin areas constrained by adjacent projection facial features, for example, skin areas located under the nose, close to the ears and the same. Thus, finish scraping is, in particular, the scraping of areas of skin constrained by adjacent projecting facial features with a finishing element. Finish scraping allows for precision scraping.
    [0053] As depicted in Figures 2 and 7, the finishing element 73 comprises a finishing blade holder 83 and a finishing blade 81. The finishing blade 81 comprises the finishing edge 75, and the finishing blade 81 is supported by the finisher blade holder 83. The finisher blade holder 83 extends in the slot 74 defined by the rear member 57 and the housing 9. The finisher blade holder 83 is secured to the housing 9 with the snap fit of the member. The rear 57 in the housing 9. The finishing blade holder 83 is thus sandwiched between the rear member 57 and the housing. For example, the rear member 57 comprises a portion adapted to exert the holding force (or clamping force) on the finishing member 73 and more particularly on the finishing blade holder 83 of the finishing member 73. The second arm 61 comprises the portion adapted to exert the retaining force on the finishing element 73. The rear element 57 engaged in the housing 9 applies pressure to the finishing element 73 to hold it in position. More precisely, the rear element exerts a retaining force on the finishing element directed towards the bottom side 13 of the housing 9. The retaining force of the rear element on the finishing element is directly related to retaining the rear element engaging the accommodation. The surface of the rear element in contact with the finish element exerts pressure that is sufficient to hold the finish element in position. The force exerted on the finishing element by the rear element 57 to hold said finishing blade in position is, for example, between 19.6133 N (2 kgf) and 49.0332 N (5 kgf). The direction of the holding force is orthogonal to the plane of the surface of the rear element in contact with the finishing element. For example, the second arm 61 comprises a protrusion-shaped portion 85 which is contiguous with the finishing element 73 or, more particularly, in its finishing blade holder 83.
    [0054] The finishing element 73 can be a bent blade, as described, for example, in patent application WO2013/050606, or a curved blade.
    [0055] The finishing blade 81 extends along a geometric finishing axis. The finishing geometry axis can coincide with the longitudinal axis X-X.
    [0056] In one embodiment, for example, as depicted in Figure 2, a portion of the housing 9 is located in front of the finishing edge 75, and the housing 9 is provided with a finishing guard 77 located in front of the finishing edge 75. The finish guard 77 may comprise a driving surface. The finish guard is, more precisely, the leading surface of the finish guard can define a Pt finish plane. As depicted in Figure 2, the finish guard comprises a surface that forms the conduction surface. Finishing element 73 is supplied without any finishing cap. The plane that traverses this driving surface is the Pt finish plane. The finish element 73 can have a positive, zero or negative exposure relative to the Pt finish plane. For example, the exposure E as illustrated in Figure 2 is negative is equal to 5 μm (-5 micrometers). In this embodiment, the distance between the finishing edge 75 and the finishing guard 77 is, for example, 410 micrometers. When the finishing element 73 has an exposure that is zero with respect to the finishing plane Pt, it means that the finishing edge 75 is coincident with the leading surface of the finishing guard 77.
    [0057] In another embodiment, for example shown in Figure 7, the rear member 57 is located at the rear of the finishing edge 75 while a portion of the housing 9 is located at the front of the finishing edge 75. The housing 9 is provided with a finishing cap 77 located at the front of the finishing edge 75. The rear element 57 is provided with a finishing cap 79 located at the rear of the finishing edge 75. The finishing cap 79 is, for example, provided of a lubricating strip to be used during finish scraping. In this way, the rear element 57 serves as a tracking surface for both scraping and finishing. The finish guard is, more precisely, the leading surface of the finish guard can define a Pt finish plane. As depicted in Figure 7, the finish guard comprises a surface that forms the conduction surface. The finishing element 73 has, for example, a positive exposure with respect to the finishing plane Pt. In other words, the finishing edge 75 extends above the finishing plane Pt. Preferably, Exposure E is equal to 120 micrometers .
    [0058] Figure 2 represents a razor blade cartridge comprising a rear element pressed into the housing, and without any finishing cap. Figure 7 depicts a razor blade cartridge comprising a rear member press-fitted into the housing, and with a finish cap. In alternative embodiments, the razor blade cartridge may comprise a rear member press-fitted into the housing, and without any finish cap, or a rear member press-fitted into the housing, and with a finish cap.
    [0059] The definition of the finishing plane depends on the housing format. If the finish element has a finish cap and a finish guard, the finish plane definition is the plane that passes through the surface of the finish guard and the finish cap that are directly next to the finish blade. If the finish element has a finish guard and no finish cap, the finish plane is the plane that passes through the surface of the finish guard.
    [0060] Finishing blade 81 and finishing edge extend in a Pte finishing edge plane. The angle a given between the Pte finishing edge plane and the Pt finishing plane, as shown in Figures 2 and 7, is between 20° and 40°. The angle a between the Pte finishing edge plane and the Pt finishing plane is preferably equal to 30°.
    [0061] The finishing element 73, for example, is not movable.
    [0062] The distance between the finishing edge 75 and the finishing guard 77 is between 400 micrometers and 650 micrometers. The distance between the finishing edge 75 and the finishing guard 77 is, for example, 580 micrometers or 590 micrometers, in particular when the razor blade cartridge comprises a finishing cap. The distance between the finishing edge 75 and the finishing shield 77 can also be 410 micrometers, in particular when the razor blade cartridge does not comprise any finishing cap.
    [0063] As depicted in Figures 2 and 7, the primary cutter knife 35 extends in a cutter knife plane Pbc, and the angle β provided between the cutter knife plane Pbc and the finishing edge plane Pte can be between 120 ° and 150 °. For example, the angle β provided between the cutting knife plane Pbc and the finishing edge plane Pte is equal to 125°.
    [0064] The housing 9 comprises, for example, through holes that are provided in addition to the finishing blade 81. The through holes may have a rectangular shape. Through holes allow a through flow of rinse water after finishing.
    [0065] The primary cutting blade 35 is retained in the housing 9 by a retainer or a clamp 87. As shown in Figure 1, the razor blade cartridge 1 comprises two clamps 87, 89 which retain the primary cutting blades in the housing. The two clips 87, 89, for example, are identical. However, the two clamps 87, 89 may be different and, for example, they may have different dimensions, different shapes or different positions.
    [0066] The clamps 87, 89, as shown in Figure 1, each comprise a first leg 90, a second leg 91 and a clamp body 93. The clamp body 93 extends between the first and second legs 90, 91. The clamp body 93, the first leg 90 and the second leg 91 form a one-piece part.
    [0067] As shown in Figure 1, the first leg 90 of the clamp 87, 89 surrounds the first longitudinal side 15 of the housing 9, and at least a portion of the bottom side 13 of the housing 9. In other words, a portion of the clamp 87, 89 is wrapped around a portion of the housing 9. The clamp body 93 is disposed facing the top side 11 of the razor blade cartridge 1. More precisely, the clamp body 93 faces the cutting edge. of at least one cutting blade 35. In order to avoid any interference with scraping, the clamp body 93 is disposed towards the longitudinal ends 37, 39 of the primary cutting blade 35, and towards the free ends 63, 65 of the element. Back 57. For example, the first clip 87 is disposed between the first longitudinal end 37 and the first free end 63 of the rear member 57, while the second clip 89 is disposed between the second longitudinal end 39 and the second end l. free 65 of the rear member 57. The clamp body 63 extends along the transverse geometric axis Y-Y.
    [0068] The second leg 91 of the clamp 87, 89 is received, for example, in a through hole 95 provided in the housing 9. The through hole 95 extends transversely to the longitudinal axis XX along the lateral axis ZZ through the housing 9 between top side 11 and bottom side 13. Through hole 95 is neither a slot nor a groove. The through hole 95 extends through the housing 9 and when viewed in cross-sectional view is laterally surrounded by the housing material. Through hole 95 is located adjacent to primary shield 55.
    [0069] The second leg 91 of the clamp 87, 89, which is received in the through hole 95, is flexed around at least a portion of the bottom side 13. The second leg 91 of the clamp 87, 89 may extend into a slot provided in the bottom side 13 of housing 9. For example, the slot for the second leg 91 is in continuity with the slot(s) provided for the first leg.
    [0070] The finishing element 73 is shorter in length than the distance between the two clamps 87, 89 along the longitudinal axis (X-X). In other words, the finishing element 73 extends between the two clips 87, 89, with no contact between the clip 87, 89 and the finishing element 73. The finishing element 73 is not held or secured to the housing 9 by the clips 87 , 89. The only retaining force or gripping force that holds the finishing member 73 to the housing 9 is the clamping force of the rear member 57. More particularly, the finishing blade 81 is less in length than the distance between the two. staples 87, 89.
    [0071] Similarly, the rear element 57 is shorter in length than the distance between the two clamps 87, 89 along the longitudinal axis (X-X). In other words, the rear element 57 extends between the two clamps 87, 89, with no contact between the clamp 87, 89 and the rear element 57. The rear element 57 is not held or secured to the housing by the clamps.
    [0072] However, the length of the rear element 57 may correspond to the distance between the two clamps along the longitudinal axis (XX), and a portion of the clamp may be wrapped around a portion of the rear element 57. in an alternative embodiment, the finishing element can be retained by the rear element and the clips.
    [0073] The design of the razor blade cartridge 1 allows cost-effective recycling of material parts, as disassembly of the finish blade is neither costly nor sophisticated. In this way, the environmental impact is reduced.
    [0074] In order to manufacture a razor blade cartridge according to the present invention, the following steps can be performed.
    [0075] Primary protection can be provided and can be assembled and disassembled to the housing.
    [0076] The finishing element 73 can be placed in the housing. The housing 9 can be provided with arrangements 97, 99 which allow the retention of the finishing element 73 before fixing it. Arrangements 97, 99 may be provided towards the first and second lateral sides 19, 21 of the housing 9. For example, as shown in Figures 4 and 8, the housing 9 may be provided with an extending protrusion 97, 99 along the lateral axis YY. As shown in Figure 8, towards the second lateral side 21 of the housing, two protrusions 97, 99 are provided in the housing 9. Protrusions 97, 99 are located on each side of the housing area 101 designed to receive the finishing element 73 More precisely, if the finishing member 73 comprises a finishing blade holder, protrusions 97, 99 are provided on each side of the housing area 101 designed to receive the finishing blade holder. The two protuberances are not facing each other, but are displaced from each other. In particular, as depicted in Figure 8, the two protrusions 97, 99 are slightly offset from one another along the longitudinal axis X-X. In one embodiment, the protuberances may be facing each other. The two protrusions 97, 99 thus make it possible to retain the finishing element. More precisely, the finishing element is sandwiched between the two protrusions 97, 99 along the lateral geometric axis Y-Y. Similar protuberances 97, 99 can be provided towards the first lateral side 19 of the housing. Thus, a total of four protrusions 97, 99 hold the finishing element in the housing 9. Protrusions 97, 99, as shown in Figure 8, have a triangular shape, and a triangle bottom is towards the bottom side 13 of housing 9 while a triangle top is towards the top 11 side of housing 9. However, other shapes may be used. Lumps 97, 99 can be used independently with the first embodiment as described in Figure 2, or with the second embodiment as described in Figure 7. As detailed from this point on and with reference to Figures 10A-B and 11-1 IB , these protuberances 97, 99 can be of different shapes.
    [0077] In an additional step, the finishing element 73 can be fixed by engaging the rear element 57 in the housing 9. The primary cutting blades 35 are mounted in the housing 9 between the first and second longitudinal sides 15, 17, already that the primary shield 55 is located in front of the cutting edge 41. The clips can then be assembled to form the razor blade cartridge 1. At the end of the method of manufacturing the razor blade cartridge according to the invention, the finishing element 73 is sandwiched between housing 9 and primary cap 53.
    [0078] For example, the steps pictured above can be performed successively. The assembly process is thus relatively straightforward, easily flexible and quickly adaptable to different razor blade cartridges.
    [0079] According to another method, primary shield 55 and housing 9 are one piece; in that case, there is no step of assembling the primary shield 55 in the housing 9. Such a method of manufacturing a razor blade cartridge thus comprises the steps of: - providing a housing 9 that extends along a longitudinal geometric axis XX having a top side 11 and a bottom side 13 opposite the top side 11 and first and second longitudinal sides 15, 17 each extending longitudinally along the longitudinal axis XX between the sides of top and bottom 11, 13, said housing being provided with a primary protection 55, - providing a finishing element 73 having a finishing edge 75, - placing the finishing element 73 in the housing 9, whereby the housing 9 comprises protrusions 97, 99 which are arranged to retain the finishing element 73, - providing a rear element 57, - affixing the finishing element to the housing by engaging the rear element in the housing, - mounting a primary blade cutting edge 35 in housing 9 between the first and second longitudinal sides 15, 17, the primary cutting blade 35 having a cutting edge 41, so that the cutting edge 41 and the finishing edge 75 are opposite, the primary guard 55 is located on the front of the cutting edge 41.
    [0080] Figure 10A illustrates a perspective view of the detail of Figure 8 according to an embodiment, where the finishing blade is placed. More precisely, the finisher blade 73, especially the finisher blade holder 83 (where such exists), is held in the housing 9, for example, after it has been press-fitted into the area of the housing 101. As illustrated in Figure 10A and best viewed in Figure 10B, the protrusions 97, 99 provided on either side of the housing area 101 are triangular in shape. The tables are each provided at one end with an apex 97A, 99A facing towards the top side 11 of the housing 9 and at the other end with a shoulder or adjoining face 97B, 99B. The adjoining faces 97B and 99B firmly hold the finishing blade 73, especially, the finishing blade holder 83 in place.
    [0081] Figure 11A illustrates a perspective view of the detail of Figure 8 according to another embodiment, where the finishing blade is placed. More precisely, the finisher blade 73, especially the finisher blade holder 83 (where such exists), is held in housing 9, for example, after it has been press-fitted into the area of housing 101. As illustrated in Figure 11A and best viewed in Figure 10B, the protrusions 97, 99 provided on either side of the housing area 101 are curved in shape. They are each provided at one end with an apex 97A, 99A facing towards the top side 11 of the housing 9. At the other end, the protrusion 99B is provided with a shoulder or abutting face 99B. The adjoining face 99B firmly holds the finishing blade 73, especially, the finishing blade holder 83 in place.
    [0082] In the embodiments disclosed with reference to Figures 10A to 10B and 11A and 11B, the protrusions 97, 99 have the same shape. The description is made in relation to one of the two sides of the housing area 101 (near the longitudinal end 25 of the first longitudinal side 15 and the free end 27); however, it should be understood that on the opposite side (near the longitudinal end 23 of the first side 15 and the free end 27), the same protrusions 97, 99 are provided. The shape of the protuberances 97 and 99 can be the same in relation to each other (on the same side of the housing).
    [0083] In another embodiment, the shape of the protrusions 97 and 99 are different from each other (on the same side of the housing). In another embodiment, the shape of the protrusions 97 and 99 are different on one side of the housing (near the longitudinal end 25 of the first longitudinal side 15 and the free end 27) from the other side (near the longitudinal end 23 of the first side 15 and to the free end 27). In fact, any type of format and/or any combination of formats can be provided in housing 9 according to the invention.
    权利要求:
    Claims (17)
    [0001]
    1. SHAVING BLADE CARTRIDGE (1) comprising: a housing (9) extending along a longitudinal axis (XX) having a top side (11) and a bottom side (13) opposite the top side (11) and first and second longitudinal sides (15, 17) each extending longitudinally along the longitudinal axis (XX) between the top and bottom sides (11, 13), at least one primary cutting blade (35) mounted in the housing (9) between the first and second longitudinal sides (11, 13), and having a cutting edge (41) a primary cover (53) being the cover primary (53) is located at the rear of the cutting edge (41), a primary shield (55), the primary shield (55) being located at the front of the cutting edge (41), a finishing element (73) , mounted on the housing (9), which has a finishing edge (75), the finishing edge (75) and the cutting edge (41) being opposite, where the primary cover (53) is provided on a rear element (57), the rear element (57) being fitted to the housing (9), and the finishing element (73) being sandwiched between the housing (9) and the cover primary (53), the cartridge (1) being characterized in that the rear element (57) is press-fitted into the housing (9), wherein the only retaining force or clamping force holds the finishing element (73) in the housing (9) is the gripping force of the rear element (57).
    [0002]
    2. CARTRIDGE (1) according to claim 1, characterized in that the housing (9) comprises a recess (67) located between the primary cutting blade (35) and the first longitudinal side (17), in which the rear element ( 57) is press-fit into the recess (67).
    [0003]
    CARTRIDGE (1) according to claim 2, characterized in that the rear element (57) has a first arm (59) comprising a hook (69) that cooperates with a protrusion (71) provided in the recess (67).
    [0004]
    CARTRIDGE (1) according to any one of claims 1 to 3, characterized in that the rear element (57) comprises a portion adapted to exert a holding or clamping force on the finishing element (73).
    [0005]
    5. CARTRIDGE (1) according to any one of claims 1 to 4, characterized in that two clips (87, 89) retain the at least one primary cutting blade (35) in the housing (9), in which the fixing of the element finisher (73) is independent of the staples (87, 89).
    [0006]
    CARTRIDGE (1) according to claim 5, characterized in that each clamp (87, 89) has a first leg (90) surrounding a first longitudinal side (15) of the housing (9) and a second leg (91) received in a through hole (95) provided in the housing (9) and a clamp body (93) that extends between the first and second legs (90, 91).
    [0007]
    7. CARTRIDGE (1) according to any one of claims 5 to 6, characterized in that the finishing element (73) is shorter in length than the distance between the two clamps (87, 89) along the longitudinal axis (XX ).
    [0008]
    8. CARTRIDGE (1) according to any one of claims 5 to 6, characterized in that the finishing element (73) is at least as long as the distance between the two clips (87, 89) along the longitudinal axis (XX ).
    [0009]
    9. CARTRIDGE (1), according to any one of claims 1 to 8, characterized in that the finishing element (73) comprises a finishing blade holder (83) and a finishing blade (81). finishing (81) comprises the finishing edge (75), and the finishing blade (81) being supported by the finishing blade holder (83).
    [0010]
    10. CARTRIDGE (1) according to any one of claims 1 to 9, characterized in that the finishing edge (75) extends in a finishing edge plane (Pte), in which the at least one cutting primary blade (35 ) extends in a cutter blade plane (Pbc), and where the angle provided between the cutter blade plane and the finishing edge plane (Pte) is between 120° and 150°, and is preferably equal at 125°.
    [0011]
    11. CARTRIDGE (1) according to any one of claims 1 to 10, characterized in that the rear element (57) comprises a V-shape with two arms (59, 61), wherein the first arm (59) extends in the counterbore (67), and wherein the second arm (61) extends in continuity with the top side (11) of the housing (9).
    [0012]
    CARTRIDGE (1) according to claim 11, characterized in that the first arm (59) comprises a hook (69), wherein the recess (67) comprises a protrusion (71) and the hook (69) cooperates with the bulge (71).
    [0013]
    13. CARTRIDGE (1) according to any one of claims 11 to 12, characterized in that the second arm (61) of the rear element (57) fitted in the housing (9) defines a slot with the housing (9), wherein the finish blade holder (83) extends into slot (74).
    [0014]
    CARTRIDGE (1) according to any one of claims 1 to 13, characterized in that at least one primary cutting blade (35) comprises an L-shape.
    [0015]
    15. CARTRIDGE (1), according to any one of claims 1 to 14, characterized in that it comprises between three or five primary cutting blades (35).
    [0016]
    16. CARTRIDGE (1), according to any one of claims 1 to 15, characterized in that it is connected to a handle (7).
    [0017]
    17. CARTRIDGE (1), according to claim 16, characterized in that the handle (7) pivots in relation to the cartridge (1).
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    同族专利:
    公开号 | 公开日
    MX2016011188A|2016-12-16|
    PL3299134T3|2018-12-31|
    CA2937358C|2021-11-02|
    KR102180992B1|2020-11-20|
    CA2937358A1|2015-09-03|
    CN105939824A|2016-09-14|
    US10195754B2|2019-02-05|
    JP6395848B2|2018-09-26|
    US20190070739A1|2019-03-07|
    US10155321B2|2018-12-18|
    KR20160126056A|2016-11-01|
    EP3299134B1|2018-06-20|
    EP3299134A1|2018-03-28|
    US10543610B2|2020-01-28|
    WO2015127978A1|2015-09-03|
    ES2677238T3|2018-07-31|
    JP2017506546A|2017-03-09|
    US20160354940A1|2016-12-08|
    RU2667930C1|2018-09-25|
    US20180029243A1|2018-02-01|
    EP3110598A1|2017-01-04|
    CN105939824B|2020-08-04|
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    法律状态:
    2018-12-26| B08F| Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]|Free format text: REFERENTE A 5A ANUIDADE. |
    2019-01-15| B08G| Application fees: restoration [chapter 8.7 patent gazette]|
    2019-12-10| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-02-09| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-05-04| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 27/02/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/EP2014/053880|WO2015127978A1|2014-02-27|2014-02-27|A shaving blade cartridge, a shaver comprising such shaving blade cartridge and a method of manufacturing such a shaving blade cartridge|
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