• 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:
    razor blade cartridge, razor blade angle and razor. it is a razor or shaving cartridge (1) comprising a housing (9) which extends along a longitudinal geometric axis (xx), which has an upper side (11), a lower side (13 ) opposite the upper side (11) and two longitudinal sides (15, 17). the two longitudinal sides (15, 17) extend longitudinally along the longitudinal geometric axis (x-x) between the upper and lower sides (11, 13). the housing (9) is provided with at least one protrusion (71, 83). the razor or shaving cartridge additionally comprises a cutting blade (35) mounted in the housing (9) between the longitudinal sides (15, 17), and having a cutting edge (41) that extends along the axis longitudinal geometric (xx), and a fastener (55) that holds the cutting blade (35) in the housing (9) and has at least one leg (59, 65). the leg (59, 65) of the fastener (55) comprises a recess (61), and the recess (61) cooperates with the protrusion (71, 83) of the housing (9).
    公开号:BR112016012363B1
    申请号:R112016012363-8
    申请日:2013-12-05
    公开日:2021-03-30
    发明作者:Dimitrios Efthimiadis；Panagiotis Zafiropoulos；Ioannis Bozikis；Panagiotis Moustakas
    申请人:Bic-Violex Sa；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    [001] The embodiments of the present invention relate to razor blade cartridges and to shavers or epilators that have such razor blade cartridges. BACKGROUND OF THE INVENTION
    [002] In particular, the present invention relates to a razor blade cartridge comprising: - a housing that extends along a longitudinal geometric axis, which has an upper side, a lower side opposite the upper side and two longitudinal sides that extend longitudinally along the longitudinal geometric axis between the upper and lower sides, the housing being provided with at least one protrusion, - a cutting blade mounted in the housing between the longitudinal sides, and which has an edge of cut that extends along the longitudinal geometric axis, e- a fastener that holds the cutting blade in the housing and that has at least one leg.
    [003] WO2012158142 already describes such a razor blade cartridge that has a housing and a fastener that has a leg that extends through an opening in the housing. In multiple embodiments described in WO2012158142, the leg comprises a protrusion and must be flexed on itself or on the bottom of the housing in order to lock the fastener in the opening. Therefore, after or during the assembly of the fastener in the housing, it is necessary to flex the fastener leg. Such bending does not guarantee the safety of the blades and potential joint stresses in the fasteners resulting from the bending can prevent the fastener from resisting the forces encountered during shaving. In addition, this arrangement requires several requirements in relation to the manufacturing process.
    [004] WO9955499 discloses a cartridge that has an annular fastener with two legs that cooperate with two recesses in the housing in order to retain the fastener. The annular holder of WO9955499 lowers the shaving surface, which is the active surface during shaving. In addition, the safety of the blade is not considered since the leg fasteners are externally accessible after the arrangement of the cartridge together.
    [005] Many solutions have been developed to attach the fastener to the housing.
    [006] For example, WO9610473 discloses a cartridge that has a fastener that is wrapped around the housing. The means are arranged adjacent to the end portions of the fastener. The means inhibit the movement of the fastener end portions with respect to the housing in a direction transverse to the longitudinal direction of the blade in order to prevent the separation of the end portions of the fastener end portions from one another. Such means are an improvement. However, there is still a risk of unintentionally removing the fastener.
    [007] The embodiments of the present invention are intended to mitigate the disadvantages discussed above. DESCRIPTION OF THE INVENTION
    [008] For this purpose, according to an embodiment of the invention, such a razor blade cartridge is distinguished by the fact that the fastener leg comprises a recess, and the recess cooperates with the protrusion of the housing.
    [009] With these functions, the blades are securely retained in the housing, without lowering the shaving surface (also called the shaving window). The cooperation of the recess with the protrusion creates a position indicator that allows the detection of the correct position of the fastener leg. In fact, in the case of wrong positioning, the protrusion cannot cooperate with the recess, and the non-cooperation of the recess and protrusion can be seen and corrected immediately. The risks of wrongly positioned fasteners are limited. Therefore, the risk of blades not retained in the housing is limited. The fastener is fixed to the housing through the cooperation of the recess and the protrusion that indicates the correct position. Thus, it is not necessary to flex the fastener leg on itself or on the bottom of the housing to fix the fastener to the housing, which reduces the number of manufacturing steps, improving production speed. In addition, manufacturing tolerances are improved since tolerances such as flexing of the fastener leg to affect the position of the blade are no longer applied.
    [010] In some embodiments, a person of ordinary skill in the technique may also use one or more of the following functions: - the fastener comprises two legs and a fastener body that extends between the legs, with the fastener body being extends along a transverse geometric axis, where the transverse geometric axis is transverse to the longitudinal geometric axis; the two legs allow better retention of the clip in the housing, - the clip body is located on the upper side of the razor blade cartridge; the position of the clip allows a large shaving surface to produce an aesthetic razor blade cartridge, and the clip is easy to dispose of together; - the housing is provided with two protrusions; - each of the two legs of the clip comprises a recess that cooperates with one of the two protrusions; the second protrusion provides a second maintenance area for the fastener, which leads to a robust assembly and minimizes the risk of unintentional disassembly of the fastener; - the protrusions are located on either side of the cutting blade; the position of the protrusion allows a robust retention of the blades in the housing - the recess is a through hole; the protrusion can then cooperate with the recess by inserting it into the recess and through the thickness of the fastener leg - the fastener is produced from metal; thin metal, for example, makes it possible to easily form the fastener without decreasing the fastener strength; - the fastener is produced from a polymer material, for example, through injection molding; - the recess is opened in cut in the fastener leg; the cut allows a precise position of the recess, without making an industrial process more inconvenient; - the housing comprises the cavity that extends along a geometric axis that crosses the longitudinal geometric axis and a transverse geometric axis, with the cavity extending from the upper side, the cavity is delimited laterally by a wall, - the protrusion is provided on the wall; in other words, the protrusion is provided inside the cavity, therefore, it is not visible and does not protrude from the external surfaces of the housing - the fastener leg is received in the cavity; the position of the fastener leg in the cavity increases the aesthetic aspect of the razor blade cartridge making it a less visible fastener from the outside; - the cavity is a blind hole; disassembly of the fastener is possible or hardly possible for a user of the razor blade cartridge; - the cavity is a through hole that extends along the geometric axis (or transversely to the longitudinal geometric axis) from the upper side to the side bottom of the housing; the through hole allows tolerances, which are not tight, - the bottom side of the housing comprises a window, the cavity emerging from the window; the shape of the housing is optimized for delectable use - the leg has a free end, the free end of the leg being located in the window; the location of the free end of the leg in the window makes disassembly of the fastener impossible or hardly possible for a user; - the housing comprises a protective bar and a rear cover, the protective bar being in front of the blade edge and the rear cover being behind the blade edge - the cavity is arranged or adjacent to the rear cover; the rear cover can be manufactured, for example, directly with the cavity - the cavity is arranged on or adjacent to the protective bar; the protective bar can be manufactured, for example, directly with the cavity - the protrusion is located on one of the two longitudinal sides; no cavities need to be drilled - the protrusion has a length along a geometric axis that crosses the longitudinal geometric axis and a transverse geometric axis, and has a height that increases along the length; the protrusion defines an inclined ramp, which allows easy assembly of the clip and difficult disassembly of the clip; - the razor blade cartridge comprises two clips that retain the blades in the housing, with each clip having at least one leg; - each one of the two fasteners has two legs, each of the two legs cooperating with a protrusion provided in the housing, one between the two legs of each of the two fasteners is located in front of the cutting blade, while the other between the two two legs of each of the two fasteners are located through the cutting blade; the retention function is enhanced; - the housing is provided with four cavities that each have a protrusion, in which each leg is received in a cavity and cooperates with a protrusion; - the shaving aid member extends both razor blade cartridge holders; the fasteners do not limit the active surface of the shaving aid - the protective bar extends between the two fasteners of the razor blade cartridge; the fasteners do not limit the active surface of the protective bar; - the embodiments of the present invention also refer to a shaver or epilator comprising a handle and a razor blade cartridge, as described above, the razor blade cartridge being connected to the cable. BRIEF DESCRIPTION OF THE DRAWINGS
    [011] Other features and advantages of the embodiments of the present invention will be readily apparent from the following description of one of its realizations, provided with non-limiting examples and shown in the attached drawings: - Figure 1 is a perspective view of a razor blade cartridge, according to an embodiment of the invention, the cartridge comprising a housing, three blades and two fasteners that retain the blades in the housing; - Figure 2 shows the razor blade cartridge of Figure 1, in which the two fasteners are on the outside of the housing; - Figure 3 is a perspective view of the fastener of Figure 2, - Figure 4 shows a top view of the razor blade cartridge housing of Figure 1 with three blades; - Figure 5 shows a bottom view of the razor blade cartridge housing in Figure 1 with three blades; - Figure 6 shows a detail called the VI detailed in Figure 4 of the housing; - Figure 7 m shows a cross-sectional view of the razor blade cartridge of Figure 1; - Figure 8 is a perspective view of a razor blade cartridge, according to a second embodiment of the invention; - Figure 9 shows a view in perspective of a shaver or epilator comprising a handle and a razor blade cartridge, according to the invention; - Figures 10a, 10b, 10c, 10d show schematic cross-sectional views in the section plane P shown in Figure 3 of the leg of the fastener according to different embodiments - Figures 11a, 11b, 11c show frontal views of a detail of the fastener leg called XI in Figure 3, according to different embodiments.
    [012] In the different Figures, the same reference signs designate similar or similar elements. DESCRIPTION OF REALIZATIONS OF THE INVENTION
    [013] Figure 1 shows a razor blade cartridge 1 from one of a wet shaving device, a razor or epilator 3 whose blades are not driven by a motor in relation to the razor blade cartridge.
    [014] As shown in Figure 9, the razor blade cartridge 1 is attached to a cable 7 that extends in a cable direction between a proximal portion Pp and a distal portion Dp. The cable 7 can pivot in relation to the razor blade cartridge 1. In other embodiments, the cable can also be fixed in relation to the razor cartridge. The cable direction can be curved or include one or more straight portions. The razor blade cartridge 1 can, for example, be removably connected to the shaver or epilator cable 7 via a locking and releasing mechanism.
    [015] As depicted in Figures 1, 2, 4, 5, 6, 7, 8 and 9, the razor blade cartridge 1 comprises a housing 9. The housing 9 extends along a longitudinal geometric axis X-X. Viewed from the top (see Figure 4), housing 9 has a general rectangular shape. However, in some embodiments, the general shape of the housing 9 may be different and, for example, the housing 9 may have an oval shape. The housing 9 comprises an upper side 11, a lower side 13 opposite the upper side 11 and two longitudinal sides 15, 17, for example, the first and second longitudinal sides 15, 17. For example, the lower side 13 is adapted to be arranged in front of the cable 7 while the upper side 11 is arranged opposite the cable 7. The upper side 11 and the lower side 13 can be parallel to each other. The first longitudinal side 15 extends along the longitudinal geometric axis X-X. The second longitudinal side 17 and the first longitudinal side 15 face each other. The second longitudinal side 17 can be approximately parallel to the first longitudinal side 15, especially when the first and second longitudinal sides 15, 17 are flattened. However, the first and second longitudinal sides 15, 17 can also have subtle or striking opposite radii. The first and second longitudinal sides 15, 17 can also have curved surfaces. The second longitudinal side 17 also extends along the longitudinal geometric axis X-X. In addition, the first and second longitudinal sides 15, 17 each extend in a lateral direction along a lateral geometric axis ZZ, between the upper side 11 and the lower side 13 of the housing 9. The first side 15 can be in front of or behind the blade edges according to the performance. The lateral geometric axis Z-Z intersects the longitudinal geometric axis X-X. For example, the geometric axis is orthogonal or perpendicular to the longitudinal geometric axis X-X.
    [016] The housing 9 can also comprise, as best seen in Figure 2, the first and second side sides 19, 21 which extend between the first and second longitudinal sides 15, 17, along a transverse geometric axis YY, being that the transverse geometric axis YY is, for example, orthogonal to the longitudinal geometric axis XX and to the lateral geometric axis ZZ. However, in one embodiment, the transverse geometric axis may not be orthogonal to the longitudinal geometric axis X-X and the lateral geometric axis Z-Z. The first and second lateral sides 19, 21 are arranged, in the lateral direction along the lateral geometric axis ZZ, between the upper side 11 and the lower side 13. The first and second longitudinal and lateral sides 15, 17, 19, 21 form together the outer surface 22 of the housing 9. Both the first and the second side sides 19, 21 join the longitudinal ends 23, 25 of the first and second longitudinal sides 15, 17. Similarly, both the first and the second longitudinal sides 15, 17 join the free ends 27, 29 of the first and second side sides 19, 21.
    [017] Housing 9 can be produced from plastic material. However, other materials can be used. In addition, the housing can be made with a combination of two or more different materials. For example, a part of the housing can be produced from the first material, while the other part of the housing is produced from a second material. The housing 9 may include, for example, on the lower side 13, a connection mechanism 31 adapted to connect the cable 7. The connection mechanism 31 can then allow the release and / or fixation of the razor blade cartridge 1 to cable 7.
    [018] The housing 9 also includes a slide receiving section 33, as shown in Figure 2. The slide receiving section 33 or the slide receiving area can have a general rectangular shape. The blade receiving section 33 is arranged on the upper side 11 of the housing 9. The blade receiving section 33 defines a recess and is adapted to receive a cutting blade 35. The razor blade cartridge 1 comprises at least one blade cutting edge 35 (also called the blade in the rest of the description). As depicted in Figures 1, 2, 4, 5, 6, 7 and 8, the razor blade cartridge 1 comprises three cutting blades 35. However, in other embodiments, the razor blade cartridge 1 may comprise more or less than three cutting blades 35, for example, the razor blade cartridge 1 comprises five cutting blades. The description below is made with reference to the Figures representing the razor blade cartridge 1 comprising three cutting blades 35. However, as mentioned earlier, the number of cutting blades may be different.
    [019] Blades 35 are mounted in housing 9 in the receiving section of blade 33 between the first and second longitudinal sides 15, 17 of the housing and between the first and second side sides 19, 21 of the housing 9. As shown in Figures 1 , 2, 4, 5, 6 and 8 each blade 35 extends longitudinally along the longitudinal geometric axis XX. Each cutting blade 35 comprises a first and second ends 37, 39 along the longitudinal geometric axis X-X. The first end 37 of the cutting blades 35 is directed towards the first side side 19 of the housing 9, while the second end 39 of the cutting blade 35 is directed to the second side side 21 of the housing 9. Each cutting blade 35 it comprises a cutting edge 41. The cutting edge 41 runs along the longitudinal geometric axis XX. The cutting edge 41 of the cutting blade 35 is accessible at the top 11 of the housing 9 for cutting hair during shaving.
    [020] For example, the cutting blades 35 have an L shape. Thus, the cutting blades 35 have a cutting edge portion 43, a guided portion 45, and a flexed portion 47 that is intermediate to the edge portion. cutting edge 43 and the guided portion 45. The cutting edge portion 43 extends along a cutting edge portion geometry axis. Advantageously, the geometrical axes of the cutting edge portion of all the cutting blades 35 are positioned parallel to each other.
    [021] In one embodiment, each cutting blade 35 is freely mounted in housing 9, as best seen in Figure 7. More precisely, the blades 35 are mobilely mounted in the blade receiving section 33. Each cutting blade 35 is, for example, carried (or carried) by two elastic fingers 49, 51 (see Figure 5). The elastic fingers 49, 51 can be molded as a single piece with the housing 9 and can extend in the blade receiving section 33 towards each other and upwards from both side sides 19, 21 of the housing 9. The guided portions 45 of the cutting blades 35 can be slidably guided in slots 53 (see Figure 5) provided in housing 9. For example, the cutting blade 35 can be a sustained blade that has the cutting edge 41 of the fixed to a blade holder 57, as shown in Figure 7 comprising the guided portion 45 and the flexed portion 47. In that case, the blade holder 57 is carried by the elastic fingers 49, 51.
    [022] However, in some other embodiments, the blades can be flexed blades, as described, for example, in patent application WO2013 / 050606.
    [023] Each cutting blade 35 is retained in the housing by a fastener 55.
    [024] The fastener 55 comprises at least one leg 59. The pump 59 of the fastener 55 comprises a recess 61. As shown in Figure 2, the leg 59 of the fastener 55 comprises a free end 63. The recess 61 is located towards the free end 63 at a nonzero distance from the free end 63 of leg 59 of fastener 55. However, in other embodiments, recess 61 may be located in other areas of leg 59 of fastener 55. The leg of fastener 55 is more short than the distance between the upper side 11 and the lower side 13.
    [025] The fastener can be produced from a material capable of forming, for example, a suitable thin sheet of metal. However, other materials can be considered. The width “1” of the fastener is preferably constant, perceptibly along its length. In addition, as shown in Figure 3, the thickness “ep” of fastener 55 is preferably constant along its length.
    [026] In other embodiments, the width “1” and thickness “ep” of the fastener can be variable.
    [027] Fastener 55 can be produced from a metal material, for example, thin metal. The recess 61 can then be cut open in the leg 59 of the fastener 55.
    [028] In the embodiment depicted in Figure 3, fastener 55 comprises two legs 59, 65, for example, a first leg 59 and a second leg 65. The two legs 59, 65 are connected together by a fastener body 67. The fastener body 67 extends between the two legs 59, 65. As shown in Figure 3, each leg 59, 65 comprises a recess 61. However, in some embodiments, only one leg can have a recess. In addition, the shape of the fastener can be different, for example, with three legs extending from a fastener body. In another embodiment, the fastener can have only one leg connected to a fastener body. The legs 59, 65 of the fastener 55 are shorter than the distance between the upper side 11 and the lower side 13.
    [029] In the realization of Figure 3, the fastener 55 is in a resting position (that is, no external forces are subjected) the legs 59, 65 of the fastener 55 extend perpendicular to the fastener body 67. The fastener 55 has a U shape. The base of the U comprises the fastener body 67, while the lateral sides of the U are defined by the first and second legs 59, 65. More precisely, a flexed portion 69 connects the leg 59, 65 of the fastener 55 and the fastener body 67. The legs 59, 65, the flexed portions 69 and the fastener body 67 are a one-piece body. The legs 59, 65 can be parallel to each other, in a resting position (that is, when there is no external force applied to the fastener 55). Fastener 55 can be manufactured by bending metal sheet metal; The free end 63 of one of the legs 59, 65 or both legs 59, 65 can be tapered (noticeably in a V shape).
    [030] In another embodiment, the fastener can also be manufactured by injection molding. A polymer material (for example, a reinforced polymer material) can be molded to form the fastener, then the fastener can be pressed to reach its final shape. The fastener made of polymer material can then be coated or galvanized.
    [031] In an assembled position of fastener 55, as shown in Figure 1, fastener body 67 extends along the transverse geometric axis Y-Y. The holder body 67 is located on the upper side 11 of the razor blade cartridge 1. More precisely, the holder 55 is arranged facing the cutting edge 41 of the cutting blade 35, thereby retaining the cutting blade 35 in the housing 9. In said assembled position, both legs 59, 65 of fastener 55 extend along the lateral geometric axis ZZ. However, in another embodiment, the fastener legs can extend in other directions.
    [032] The recess 61 of the leg 59, 65 cooperates with a protrusion 71 provided in the housing 9.
    [033] The recess 61 can have different shapes. For example, the recess 61 can be square or rectangular, as shown in Figure 11a. The recess can also be circular, as shown in Figure 11b. In the embodiments shown in Figures 11a and 11b, the recess 61 is "closed", this means that the recess 61 is accessible from one side of the fastener leg or from a rear side of the fastener leg. The recess is not accessible from the side of the fastener leg 55.
    [034] In another embodiment, the recess may have a noticeable L-shaped L, as shown in Figure 11c. More particularly, the recess 61, shown in Figure 11c, is "open". The recess 61 has a portion that extends beyond the limit of the fastener 55, so that the recess 61 is accessible from a transverse side of the fastener. For example, the recess 61 may have a first portion that is rectangular and extends along the length of the fastener leg 55 and a second portion that extends along a direction perpendicular to the length of the fastener, and beyond the limit of the fastener . An "open" indentation 61 can facilitate cooperation with protrusion 71.
    [035] The protrusion 71 is provided in the housing 9 and can have a shape that allows a good cooperation of the recess 61 with said protrusion 71. The protrusion 71 can have a first end and a second end 75. The second end 75 can be project beyond the first end 73, as further described below.
    [036] In a first embodiment, as shown in Figures 1, 2, 4, 5, 6 and 7, the housing 9 comprises a cavity 77, and the protrusion 71 is located in the cavity 77. The cavity 77 is defined by a wall 79 and protrusion 71 is on wall 79. In other words, protrusion 71 projects from wall 79.
    [037] The wall 79 that defines the cavity 77 can be straight, in order to facilitate the assembly of the leg 59, 65 of the fastener 55 in the cavity. In addition, the walls may be orthogonal to the shaving plane, which is the plane defined as the plane that passes through the housing surfaces directly located in front of the cutting edge and behind the cutting edge. In another embodiment, the walls are angled in relation to the shaving plane. For example, the angle between the wall 79 and the shaving plane can be between 70 ° and 100 °.
    [038] Cavity 77 can have a rectangular shape, a square shape or a circular shape. The fastener leg 59, 65 is inserted into the cavity 77. For example, the shape of the cavity is complementary to the shape of the fastener leg. The shape of the fastener 55 and, more particularly, of the leg 59, 65 is complementary to the shape of the cavity 77 and may be different from the shape described above with reference to Figure 3. Visualized in a cross section, the shape of the leg 59, 65 of the fastener 55 can be rectangular, square or oval.
    [039] More precisely, viewed in a cross-section, the shape of the leg 59, 65 of the fastener 55 can be rectangular, as shown in Figures 10a. Therefore, it cooperates with a cavity with rectangular shape 77, as shown in Figure 2.
    [040] However, the shape of the leg 59, 65 of the fastener 55 can also be oval, as shown in 10b. The leg 59, 65 can then be inserted into a cavity 77, which is oval.
    [041] In another embodiment, as shown in Figure 10c, the leg 59, 65, viewed in a cross-section, can have a U-shape, with a base that extends between two sides. The leg 59, 65 can then be inserted into a cavity 77, which is also U-shaped.
    [042] Leg 59, 65, viewed in cross-section, can also have an L shape, as shown in Figure 10d. The leg 59, 65 can then be inserted into a cavity 77, which is also L-shaped.
    [043] Cavity 77 can be a blind hole. In other embodiments, the cavity 77 can be a through hole that extends transversely to the longitudinal geometric axis (X-X) from the upper side 11 to the lower side 13 of the housing 9.
    [044] In the first embodiment, shown in Figures 1, 2, 4, 5, 6 and 7, the housing 9 comprises two cavities 77, 81, for example, a first cavity 77 and a second cavity 81. Each of the cavities 77 , 81 comprises a protrusion 71. The first cavity 77 can be located on one side of the lamina towards the first longitudinal side 15, while the second cavity 81 is located on the other side of the lamina, towards the second longitudinal side 17.
    [045] In the first embodiment of Figures 1, 2, 4, 5, 6 and 7, the first leg 59 of the fastener 55 is inserted in the first cavity 77 and the second leg 65 of the fastener 55 is inserted in the second cavity 81.
    [046] In a second embodiment, as shown in Figure 8, the protrusion 71 can be located on one of the two longitudinal sides 15, 17. More precisely, the protrusion 71 can be located on both the first longitudinal side 15 and the second longitudinal side 17. As shown in Figure 8, a first protrusion 71 is located on the second longitudinal side 17 while a second protrusion 83 is located in a cavity 77 that is directed to the first longitudinal side 17. In this embodiment, represented in Figure 8, a The clip's leg extends to the outside of the razor blade cartridge. For example, a groove comprising protrusion 71 can be provided on the second longitudinal side 17, in which a leg of the fastener 55 extends. The thickness of the groove can then be equal to the thickness "ep" of the fastener 55. In this way, the leg of the fastener 55 does not protrude out of the housing 9 from the groove.
    [047] In one embodiment, the housing 9 may comprise two protrusions 71, 83, one of which is located on the first longitudinal side 15, the other is provided on the second longitudinal side 17. The protrusion 71, 83 projects from a between the longitudinal sides 15, 17. The protrusion 71, 83 can alternatively project from one of the lateral sides 19, 21, for example, when the fastener recess 61 has an L shape, as shown in Figure 11c.
    [048] The protrusion 71, 83 can also be located in another area of the housing 9, provided that it cooperates with the recess 61 provided in the fastener 55 so that the fastener 55 can assume its function of retaining the cutting blades 35 in the housing 9 .
    [049] As mentioned earlier, protrusion 71, 83 can include a first and second end 73, 75. For example, and as shown in Figures 7 and 8, the first end 73 is located towards the upper side 11 of housing 9 , while the second end 75 is located towards the lower side 13 of the housing 9. The protrusion 71, 83 has a length "Lp" along the lateral geometric axis ZZ that crosses the longitudinal geometric axis XX and the transverse geometric axis YY and has a height "Hp". The height "Hp" of the protrusion 71, 83 increases along the length "Lp". The second end 75 of protrusion 71, 83 protrudes beyond the first end 73 of protrusion 71, 83. In other words, protrusion 71, 83 forms an inclined ramp, which allows for easy monitoring of fastener 55 and difficult disassembly of the fastener 55. In fact, the clip 55 is inserted from the upper side 11 of the razor blade cartridge 1. Thus, during insertion, the free end 63 of the clip 55 first contacts the first end 73 of the protrusion 71 , 83. Second, the free end 63 of the fastener 55 slides along the protrusion 71, 83 along the lateral geometric axis ZZ. Although it slides along the protrusion 71, 83, the leg 59, 65 of the fastener 55 is “supported by the protrusion 71, 83”, and the free end 63 of the fastener 55 will deviate from its resting position (free from external restrictions) under the force exerted by protrusion 71, 83, in the opposite direction to protrusion 71, 83. The free end 63 of fastener 55 will slide past the second end 75 of protrusion 71, 83 until the outer contours of the recess 61 come into contact with the front of the outer contours of the protrusion 71, 83. The leg 59, 65 of the fastener 55, then, is no longer held by the protrusion (in other words, there is no force exerted by the protrusion 71, 83) and the leg 59, 65 of the fastener 55 returns to its rest position. In other words, the leg 59, 65 of the fastener 55 returns elasticly to its resting position, so that the recess 61 of the leg 59, 65 is around the protrusion 71, 83. The protrusion 71, 83 emerges from the recess 61 (or passes through the thickness of fastener 55).
    [050] In the first embodiment and as shown more precisely in Figure 7, the cavity 77, 81 which is a through hole, the lower side 13 of the housing can comprise a window 85 (which is a type of recess or cavity). The window 85 forms a slot in the lower side 13 of the housing 9. The cavity 77, 81 emerges in the window 85.
    [051] In an assembled position of fastener 55, as shown in Figure 7, the free end 63 of leg 59, 65 of fastener 55 is located in window 85. Thus, the free end 63 does not protrude from housing 9 .
    [052] Housing 9 may comprise a protective bar 87 and a rear cover 89. The protective bar 87 is in front of the cutting edge 41. The protective bar 87 is located in front of the cutting edges 41. The rear cover 89 is located at the rear of the cutting edge 41. In other words, the rear cover 89 is behind the cutting edge 41. The rear cover 89 is preferably provided with a lubricating strip. In other words, the back cover 89 preferably comprises, as shown in Figures 1, 2, 4 and 8, a shaving aid member 91. Shaving aid member 91 extends along the longitudinal geometric axis X-X. The shaving aid member 91 is preferably of the same length along the longitudinal geometric axis X-X with the rear cover 89 or is less in length than the rear cover 89.
    [053] The cavity 77, 81 can then be located in the rear cover 89, or adjacent to it. Cavity 77, 81 can also be arranged (or located) in the protective bar or adjacent to it 87. Cavity 77, 81 can be arranged adjacent to the rear cover 89 and protective bar 87. For example, as shown in Figures 1, 2, 4, 8, the first cavity 77 is arranged in the rear cover 89, while the second cavity 81 is arranged in the protective bar 87. The shape of the protrusion 71, 83 is complementary to the shape of the recess 61. In other words, the dimensions of the protrusion 71, 83 are the same, or are in the same order of magnitude as the dimensions of the recess 61. The recess 61 can be larger than the protrusion 71, 83.
    [054] In the embodiment shown in Figures 1, 2, 4, 5, 8, the razor blade cartridge comprises two clips 55. The two clips 55 can be similar.
    [055] For example, fasteners 55 may each have a leg 59 that cooperates with a protrusion 71 in protection.
    [056] In other embodiments, the two fasteners may be different. For example, while one of the fasteners has two legs that each extend into a cavity 77, 81, the second fastener can have two legs that cooperate with the protrusions provided on the longitudinal sides of the housing. For example, the legs of the second clip can extend outside the razor blade cartridge, while the legs of the first clip can extend inside the razor cartridge 1. Alternatively, a first leg of each clip 55 can extend into a cavity while a second leg of each clip 55 extends outward from the razor blade cartridge.
    [057] The distance between the two fasteners 55 is less than the length of the cutting blade 35. The two fasteners 55 can have a portion that is in front of the cutting blade 35. The portions of the fasteners 55 in front of the cutting blade holds the cutting blade 35. The portion of the fasteners 55 in front of the cutting blade 35 touches the cutting blade 35 when the blades are in a resting position (that is, when there is no external force applied to the razor blade cartridge) ).
    [058] Fastener 55 may comprise an aluminum alloy material. The blade 35 may comprise an alloy steel material. The different materials between the blade and the fastener enhance the cathodic protection and the longevity of the blade.
    [059] The fastener 55 can have mechanical elastic properties, which enable the elastic deformation of the fastener leg 55 in order to provide a gripping action carried only by the inherent resistance to the deformation of the material for gripping the fastener leg with the protrusion. Fastener 55 of the first embodiment, as shown in Figures 1, 2, 4 and 5 can be attached to housing 9 with the following steps:
    [060] In the first step, the legs 59, 65 of the fastener are positioned in front of the cavities 77, 81. In a second step, the fastener 55 is moved towards the housing 9 so that the legs 59, 65 of the fastener 55 are inserted into the cavities 77, 81. The legs 59, 65 of the clip 55 are pushed along the lateral geometric axis ZZ towards the razor blade cartridge until the clip 55 reaches its final position, in which the recess 61 of the legs 59, 65, cooperates with the protrusion 71, 83, as previously described.
    [061] In the second embodiment shown in Figure 8, the steps for attaching the fastener to the housing are as follows: In the first step, the second leg 65 of the fastener 55 is positioned in front of the cavity 77, while the first leg of the fastener it is positioned axially offset along the lateral geometric axis ZZ with respect to protrusion 71. In a second step, the fastener 55 is moved in the direction of the housing 9 so that the second leg 65 of the fastener 55 is inserted into the cavity 77, at the whereas the first leg of the fastener surrounds the first longitudinal side. The legs 59, 65 of the clip 55 are pushed along the lateral geometric axis ZZ towards the razor blade cartridge until the clip 55 reaches its final position, in which the recess 61 of the legs 59, 65, cooperates with the protrusions 71, 83, as previously described.
    [062] Fastener 55 cannot be removed from its final position normally. The fastener is positioned permanently. In fact, during the pull along the lateral geometric axis ZZ in a direction opposite to the razor blade cartridge 1, the second end 75 of the protrusion 71, 83 forms a contiguity for the external contour of the recess, so that the fastener 55 be locked into cavity 77, 81. In addition, the protrusion may be plastically deformed.
    [063] The cooperation between the recess 61 and the protrusion 71, 83 forms a locking device. The assembly actions of the fastener 55 in relation to the housing 9 and the locking of the fastener 55 in the housing 9 are simultaneous. No additional bending steps are required to secure the fastener to the housing. Fastener 55 is held inside the guard and / or on the back cover of housing 9, which limits the risk of unintentionally removing the fastener.
    权利要求:
    Claims (15)
    [0001]
    1. SHAVING CARTRIDGE (1) which comprises: a housing (9) that extends along a longitudinal geometric axis (XX), which has an upper side (11), a lower side (13) opposite the upper side (11) and two longitudinal sides (15, 17) that extend longitudinally along the longitudinal geometric axis (XX) between the upper and lower sides (11, 13), the housing (9) being provided with at least one protrusion (71, 83), a cutting blade (35) mounted in the housing (9) between the longitudinal sides (15, 17) and having a cutting edge (41) that extends along the longitudinal geometric axis (XX) , a fastener (55) which holds the cutting blade (35) in a housing (9) and which has at least one leg (59, 65), wherein: the leg (59, 65) of the fastener (55) comprises a recess (61), where the recess (61) cooperates with the protrusion (71, 83) of the housing (9), characterized in that the housing (9) comprises a cavity (77) that extends along a geometric axis lateral axis (ZZ) that crosses the longitudinal geometric axis (XX) and a transversal geometric axis (YY), with the cavity (77) extending from the upper side (11), the cavity (77) is delimited laterally by a wall (79), in which the protrusion (71, 83) is provided in the wall (79), and in which the leg (59, 65) of the fastener (55) is received in the cavity (77).
    [0002]
    2. SHAVING BLADE CARTRIDGE (1), according to claim 1, characterized in that the fastener (55) comprises two legs (59, 65) and a fastener body (67) extending between the legs (59, 65) , with the fastener body (67) extending along a transverse geometric axis (YY), where the transverse geometric axis (YY) is transversal to the longitudinal geometric axis (XX), and where the fastener body (YY) 67) is located on the upper side (11) of the razor blade cartridge (1).
    [0003]
    3. SHAVING BLADE CARTRIDGE (1), according to claim 2, characterized in that the housing (9) is provided with two protrusions (71, 83), in which each of the two legs (59, 65) of the fastener (55 ) comprises a recess (61) that cooperates with one of the two protrusions (71, 83), and in which the protrusions (71, 83) are located on either side of the cutting blade (35).
    [0004]
    SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 3, characterized by the recess (61) is a through hole, in which the fastener (55) is produced from metal, and in which the recess (61) is cut open in the leg (59, 65) of the fastener (55).
    [0005]
    5. SHAVING BLADE CARTRIDGE (1), according to claim 4, characterized in that the cavity (77) is a blind hole.
    [0006]
    6. SHAVING BLADE CARTRIDGE (1), according to claim 4, characterized in that the cavity (77) is a through hole that extends along the lateral geometric axis (ZZ) from the upper side (11) to the side bottom (13) of the housing (9).
    [0007]
    7. SHAVING BLADE ANGLE, as defined in claim 6, characterized in that the lower side (13) of the housing (9) comprises a window (85), the cavity (77) emerging from the window (85), and in which the leg (59, 65) has a free end (63), the free end (63) of the leg (59, 65) being located in the window (85).
    [0008]
    SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 7, characterized in that the housing (9) comprises a protective bar (87) and a rear cover (89), the protective bar (87) it is in front of the cutting edge (41) and the rear cover (89) is behind the cutting edge (41), and in which the cavity (77) is arranged in or adjacent to the rear cover (89).
    [0009]
    SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 7, characterized in that the housing (9) comprises a protective bar (87) and a rear cover (89), the protective bar (87) being in front of the cutting edge (41) and the rear cover (89) is behind the cutting edge (89), and in which the cavity (77) is arranged on or adjacent to the protective bar (87).
    [0010]
    10. SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 4, characterized in that the protrusion (71, 83) is located on one of the two longitudinal sides (15, 17).
    [0011]
    11. SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 10, characterized by the fact that the protrusion (71, 83) has a length (“Lp”) along a lateral geometric axis ( ZZ) that crosses the longitudinal geometric axis (XX) and has a height (“Hp”) that increases along the length (“Lp”).
    [0012]
    12. SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 11, characterized in that the razor blade cartridge (1) comprises two fasteners (55) that retain the cutting blade (35 ) in the housing (9), with each fastener (55) having at least one leg (59, 65).
    [0013]
    13. SHAVING BLADE CARTRIDGE (1), according to claim 12, characterized by the fact that each of the two fasteners (55) has two legs (59, 65), each of which between the two legs ( 59, 65) cooperates with a protrusion (71, 83) provided in the housing (9), one between the two legs (59, 65) of each of the fasteners (55) is located in front of the cutting blade (35), whereas the other one between the two legs of each one between the two fasteners (55) is located behind the cutting blade (35).
    [0014]
    SHAVING BLADE CARTRIDGE (1), according to any one of claims 1 to 13, characterized in that the housing (9) is provided with four cavities that each have a protrusion (71, 83), each of which leg (59, 65) is received in a cavity (77), and each leg comprises a recess and each recess (61) cooperates with a protrusion (71, 83).
    [0015]
    15. SHAVER, characterized in that it comprises a handle and a razor blade cartridge (1), as defined in any one of claims 1 to 15, said razor blade cartridge (1) being connected to the cable.
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    同族专利:
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    法律状态:
    2019-11-26| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-01-19| B09A| Decision: intention to grant|
    2021-03-30| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 05/12/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    PCT/EP2013/075614|WO2015082002A1|2013-12-05|2013-12-05|A shaving blade cartridge|
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