JP4416598B2 - Adapter unit for shaving razor - Google Patents

Description

  The present invention relates to a shaving razor structure in which an adapter unit has an interface between a razor blade carrier and a razor handle engaging member.

  Shaving razor makers manufacture shaving razors of various designs. In particular, many designs have been developed for the interconnection of the razor blade carrier and the razor handle. In many situations, it would be advantageous for manufacturers to be able to use razor blade carriers and razor handles of various designs together.

For example, for manufacturing efficiency, it would be advantageous for a manufacturer to use a standardized razor blade carrier with various designs of razor handles or a standardized razor handle with various designs of razor blade carriers. Let ’s go. In addition, it would be commercially attractive for manufacturers to produce standardized razor handles that are compatible with various designs of razor blade carriers available commercially. In addition, it would be advantageous for manufacturers to be able to use a new design razor handle with an older design razor blade carrier in order to extend the life of the older design razor blade carrier. In addition, it would be advantageous for manufacturers to use the new design razor blade carrier with the older design razor handle to facilitate the transition to the new design razor blade carrier.
Accordingly, there is a need for an apparatus and method that can use razor blade carriers and razor handles of various designs together.

  According to a preferred embodiment of the present invention, there is provided a razor cartridge for use with the razor handle having a handle engaging member extending at one end of the razor handle. The razor cartridge includes a razor blade carrier having a carrier engaging member, and an adapter unit having a first side and a second side. An adapter engaging member that fits and couples with the carrier engaging member is provided on the first side of the adapter unit. At least one of the adapter engaging member and the carrier engaging member is made elastically, and the adapter engaging member and the carrier engaging member are snap-coupled to each other in a non-detachable engagement. The second side of the adapter unit has means for removably coupling the razor cartridge to the handle engagement member.

By using the adapter unit of the present invention, a shaving razor manufacturer can mass produce standardized razor blade carriers for all of the various models of shaving razors and standardize using different adapter units. Advantageously, the razor blade carrier can be adapted to razor handle engagement members of different designs. Because of the economy of producing standardized razor blade carriers on a large scale, typically the increased cost of producing the relatively simple adapter unit of the present invention is sufficiently compensated, so that manufacturers The overall cost of manufacturing razors with different designs can be reduced.
The carrier engaging member of the razor cartridge includes one or more claws, and the adapter engaging member includes an elongated protrusion. In other examples, the carrier engagement member comprises one or more slots and the adapter engagement member comprises one or more tabs.

  According to another preferred embodiment of the present invention, there is provided a razor cartridge for use with the razor handle having a handle engaging member extending at one end of the razor handle. The razor cartridge includes a razor blade carrier having a carrier engaging member, and an adapter unit having a first side and a second side. The first side portion of the adapter unit has a first adapter engaging member that fits and couples with the carrier engaging member, and at least one of the first adapter engaging member and the carrier engaging member is elastically The first adapter engagement member and the carrier engagement member are manufactured and snap-coupled to each other in a non-detachable engagement. The second side of the adapter unit has a second adapter engaging member that pivotally couples with the handle engaging member, and at least one of the second adapter engaging member and the handle engaging member is made elastically. The second adapter engagement member and the handle engagement member are snap-coupled to each other in a rotatable engagement.

  The carrier engaging member of the razor blade carrier includes one or more claws, and the first adapter engaging member includes an elongated protrusion. In other examples, the carrier engagement member may comprise one or more slots, and the first adapter engagement member may comprise one or more tabs.

  The second adapter engaging member of the adapter unit can be attached to or detached from the handle engaging member. Further, the handle engagement member may include a protrusion having a rounded end, and the second adapter engagement member may include a socket for receiving the protrusion. The socket is preferably provided with a plurality of elastic fingers.

  According to yet another preferred embodiment, there is provided a razor cartridge for use with a razor handle having a handle engaging member extending at one end thereof. The razor cartridge includes a razor blade carrier having first and second carrier engaging members. The second carrier engagement member is pivotable with the handle engagement member. The razor cartridge also includes an adapter unit having a first side and a second side, the first side having an adapter engagement member that mates and couples with the first carrier engagement member; At least one of the adapter engagement member and the first carrier engagement member is made elastically, and the adapter engagement member and the first carrier engagement member are snap-coupled to each other in a non-detachable engagement. The second side of the adapter unit has an opening for guiding the handle engaging member such that the handle engaging member is pivotally engaged with the second carrier engaging member.

  The first carrier engaging member may include one or a plurality of claws, and the adapter engaging member may include an elongated protrusion. Further, the first carrier engagement member may include one or more slots, and the adapter engagement member may include one or more tabs. The opening preferably comprises a tapered inner wall.

In each of the embodiments described above, the razor handle may have a central protruding tongue and the adapter unit may have a socket for loosely receiving the tongue so that when the handle and adapter unit are engaged, the center The protruding tongue and the socket cooperate to limit the range of rotation of the handle relative to the razor cartridge.
The adapter unit of the present invention is preferably injection molded and is a plastic part.

  In accordance with another aspect of the present invention, a method of manufacturing a razor cartridge for use with a first razor handle and a second razor handle is provided. The method includes manufacturing first and second substantially identical razor blade carriers having first and second carrier engaging members that are substantially the same, and two sides, respectively. A first adapter unit having a first adapter engaging member that can be coupled to the first carrier engaging member on the first side, and the first adapter engaging unit. Means for elastically manufacturing at least one of the member and the first carrier engaging member and detachably coupling the first razor cartridge to the first razor handle on the second side; And a step of manufacturing a second adapter unit having two sides, wherein the second side is provided with a second adapter engaging member that can be coupled to the second carrier engaging member. A second adapter engaging member and a second carrier And a step of elastically manufacturing at least one of the mating members and having means on the second side for releasably coupling the second razor cartridge to the second razor handle. Yes. Preferably, the method is such that the first adapter unit engages the first razor blade carrier by elastically provided cooperation between the first adapter engaging member and the first carrier engaging member. Forming a first razor cartridge for use with the first razor handle, and an elastically provided cooperation between the second adapter engaging member and the second carrier engaging member; Forming a second razor cartridge for use with the second razor handle such that the adapter unit engages the second razor blade carrier.

  According to another aspect of the present invention, a method for manufacturing a razor handle for use with a first razor blade carrier and a second razor blade carrier is provided. The first razor blade carrier has a first carrier engaging member, and the second razor blade carrier has a second carrier engaging member. The method first includes manufacturing first and second substantially identical razor handles, each having first and second razor handle engaging members that are substantially the same. Secondly, the method comprises the step of manufacturing a first adapter unit having two sides, the first side having a first adapter engaging member that can be coupled to a first carrier engaging member. And at least one of the first adapter engaging member and the first carrier engaging member is elastically manufactured, and the second side portion can be coupled to the first carrier engaging member. Including two adapter engaging members and elastically manufacturing at least one of the second adapter engaging member and the first carrier engaging member. Third, the method includes the step of manufacturing a second adapter unit having two sides, the first side having a third adapter engaging member that can be coupled to a second handle engaging member. And at least one of the third adapter engaging member and the second handle engaging member is elastically manufactured, and the second side portion can be coupled to the second carrier engaging member. And four adapter engaging members, and at least one of the fourth adapter engaging member and the second carrier engaging member is elastically manufactured. Preferably, the method also includes engaging the first adapter unit with the first razor handle by the resiliently provided cooperation of the first adapter engaging member and the first handle engaging member. Engaging the second adapter unit with the second handle by elastically provided cooperation between the third adapter engaging member and the second handle engaging member.

  1 and 2 are perspective views showing an adapter unit 10 according to a first preferred embodiment of the present invention. The adapter unit 10 includes an elongated, generally rectangular base 12, which has a bottom side 14a and an upper side 14b.

  The bottom side 14a includes two groups of elastic fingers 16a and 16b, which are arranged at both ends of the longitudinal axis of the base 12. The two groups of elastic fingers 16a and 16b form the boundary of two spherical cavities 26a and 26b, respectively. Depending on the location and size of the spherical cavities 26a and 26b, the bottom side 14a further includes a round recess that outlines the boundaries of the spherical cavities. As shown, each group preferably has four elastic fingers, but any number of fingers can be used as long as they form the boundary of a spherical cavity. The bottom side 14a also includes a central socket 18. The central socket 18 includes a notch 20, which extends perpendicular to the plane of the bottom side 14a.

  The upper side 14b includes protrusions, and these protrusions protrude outward from the upper longitudinal edge. An elongated protrusion 22 is disposed along the length of one longitudinal edge of the upper side 14b. A pair of protruding tabs 24a and 24b are disposed along the other longitudinal edge of the upper side 14b as shown in FIG. As shown in FIG. 2, tabs 24 a and 24 b are disposed at both ends of the longitudinal axis of the base 12. The upper side 14b includes a pair of protrusions 28a and 28b. These protrusions protrude from the upper side 14b and extend perpendicular to the longitudinal edge of the upper side 14a.

  FIGS. 3-6 show perspective views of a shaving razor, which includes a standardized razor blade carrier 30, the adapter unit 10 shown in FIGS. 1 and 2, and a razor handle end 50. FIG. 3 and 4 show the shaving razor before the razor blade carrier 30, the adapter unit 10 and the razor handle end 50 are engaged. 5 and 6 show the shaving razor in a state in which the razor blade carrier 30, the adapter unit 10 and the handle end 50 are engaged together.

  As shown in these drawings, the razor blade carrier 30 has an elongated and substantially rectangular structure. The longitudinal axis is parallel to the cutting edge of a blade or blades (blade not shown) housed in the razor blade carrier. The razor blade carrier 30 may include any blade, guard, and cap (not shown) that are well known to those skilled in the art. Referring to FIG. 3, the razor blade carrier 30 includes a bottom base 32 with an elastic edge 44 formed around the bottom base. A base-like protrusion 34 projects from the base 32 at the center of the base 32. The pedestal-shaped protrusion 34 is formed to fit between the protrusions 28 a and 28 b on the adapter unit 10.

  A pair of support structures 40 a and 40 b protrude from the base 32 on either side of the pedestal-shaped protrusion 34. As best shown in FIG. 3, a plurality of claws 36 are disposed on the edge 44 along one longitudinal edge of the razor blade carrier 30. As best shown in FIG. 4, each of the support structures 40a and 40b is formed with a pair of slots 38a and 38b on the opposite side of the razor blade carrier 30 from the pawl 36. Referring to FIGS. 3 and 4, the standardized razor blade carrier 30 further includes a pair of cylindrical shafts 42a and 42b formed in support structures 40a and 40b, respectively, both of which are handles of certain designs of handles. A pivot axis is formed for the razor blade carrier 30 for the purpose. Cylindrical shafts 42a and 42b are not used in the embodiments of FIGS. 3 to 6, but are used in the embodiments described below.

  In the embodiment of FIGS. 3-6, the razor handle end 50 branches into two arms 54a and 54b, which form a V shape. The two arms 54a and 54b are joined by a bridge portion 62 at their outer ends. Each of the arms 54a and 54b includes ball-shaped protrusions 56a and 56b at the ends thereof. The bridge portion 62 includes a central protruding tongue 58, the cross section of which is T-shaped.

  To engage the adapter unit 10 with the razor blade carrier 30, the tabs 24a and 24b of the adapter unit 10 are disposed in the slots 38a and 38b of the razor blade carrier 30, respectively. Then, the adapter unit 10 rotates around the longitudinal edge where the tabs 24 a and 24 b are arranged, and the elongated protrusion 22 comes into contact with the claw 36. Thereafter, when a pressing force is applied to the adapter unit 10, the claw 36 and the edge 44 are pushed outward by the cam action of the elongated protrusion 22 on the claw 36. After the elongate protrusion 22 passes the claw 36, the claw 36 and the edge 44 return to their original positions, locking the adapter unit 10 to the razor blade carrier 30, thereby forming a razor cartridge. To do. During this procedure, the pedestal-shaped protrusion 34 of the razor blade carrier 30 cooperates with the protrusions 28a and 28b of the adapter unit 10 to guide and stabilize the adapter unit 10 in place.

  Once the adapter unit 10 is engaged with the razor blade carrier 30, the razor cartridge formed by the adapter unit 10 has the ball-like projections 56a and 56b of the handle end 50 with the resilient fingers 16a and 56a of the adapter unit 10. It will be appreciated that the handle end 50 can be snapped onto the spherical cavities 26a and 26b formed by each of the groups 16b. Once engaged, the ball-like projections 56a and 56b and the elastic finger groups 16a and 16b form a pair of ball joints. Further, the tongue of the handle end 50 is guided while the T-shaped tongue 58 cooperates with the notch 20 of the socket 18 so that the razor handle end 50 is in the correct orientation for shaving with the adapter unit 10. 58 fits into the socket 18 of the adapter unit 10. Preferably, the razor cartridge is constituted by the razor blade carrier 30 and the adapter unit 10, leaving the socket 18 slightly wider than the tongue 58, leaving room for play between the tongue 58 and the socket 18. It can be rotated by a ball joint. The play between the socket 18 and the tongue 58 defines the range of rotation of the razor cartridge.

  7 and 8 are perspective views showing an adapter unit 110 according to a second preferred embodiment of the present invention. The adapter unit 110 includes an elongated, generally rectangular base 112 having a bottom side 114a and an upper side 114b.

  Referring to FIG. 7, the bottom side 114 a includes two pairs of elastic fingers 116 a and 116 b that are disposed at both ends of the longitudinal axis of the base 112. Each pair of resilient fingers 116a and 116b is adapted to receive a cylindrically shaped structure. The bottom side 114a also includes a central socket 118. The central socket 118 includes an incision 120 that extends perpendicular to the plane of the bottom side 114a.

  Referring to FIG. 8, the upper side 114b of the adapter unit 110 includes protrusions, and these protrusions protrude outward from the upper longitudinal edge. An elongated protrusion 122 is disposed along the length of one longitudinal edge of the upper side 114b. A pair of protruding tabs 124a and 124b are disposed on the opposite longitudinal edge. The upper side 114b includes a pair of protrusions 128a and 128b, which protrude from the upper side 114b and extend perpendicular to the longitudinal edge of the upper side 114a.

  9 and 10 are an exploded perspective view and an assembled perspective view, respectively, showing a shaving razor, with the standardized razor blade carrier 30 described above in connection with the embodiment of FIGS. And the adapter unit 110 shown in FIG. 8 and the razor handle end 150. 11 and 12 are exploded side views showing the same shaving razor.

As shown in FIGS. 9-12, the razor handle end 150 branches into two arms 154a and 154b, which form a V-shape. The two arms 154a and 154b are joined by a bridge portion 162 at their outer ends.
Arms 154a and 154b include recesses 160a and 160b, respectively, at their ends. Recesses 160a and 160b include cylindrically shaped portions 156a and 156b, respectively. The bridge portion 162 includes a central protruding tongue 158, the cross section of which is T-shaped.

  It can be seen that the protrusions on the upper side 114b of the adapter unit 110 are the same as those of the adapter unit 10 of FIGS. Thus, adapter unit 110 engages standardized razor blade carrier 30 in the same manner as described with respect to adapter unit 10, thereby forming a razor cartridge. The handle end 150 engages the adapter unit 110 by snapping the round portions 156a and 156b to the two pairs of resilient fingers 116a and 116b. Similar to the previous embodiment of the present invention, the T-shaped tongue 158 cooperates with the notch 120 in the socket 118 to guide the razor handle end 150 into the correct orientation for shaving the adapter unit 10. However, the tongue 158 fits in the socket 118. Preferably, the socket 118 is slightly wider than the tongue 158, leaving room for play between the tongue 158 and the socket 118 so that the razor cartridge can pivot about the cylindrical portions 160a and 160b. To. The play between the socket 118 and the tongue 158 defines the range of rotation of the razor cartridge formed by the adapter unit 110 and the razor blade carrier 30.

  13 and 14 are perspective views showing an adapter unit 210 according to a third preferred embodiment of the present invention. Adapter unit 210 includes an elongated generally rectangular base 212 having a bottom side 214a and an upper side 214b.

  Referring to FIG. 13, the bottom side 214 a includes a pair of guide structures 216 a and 216 b, which are disposed at both ends of the longitudinal axis of the base 212. The guide structures 216a and 216b have a substantially rectangular structure and are provided with central opening portions 226a and 226b, respectively, and the inner wall is tapered toward the central opening. The bottom side 214a also includes a pair of tapered projections 215a and 215b, which are located between the guide structures 216a and 216b.

  Referring to FIG. 14, the upper side 214b includes a protrusion that protrudes outward from its longitudinal edge. A pair of elongated protrusions 222a and 222b are arranged to extend along one longitudinal edge of the upper side 214b. A pair of protruding tabs 224a and 224b are disposed on the longitudinal edge opposite to the upper side 214b. The upper side 214b includes a pair of protrusions 228a and 228b, which protrude from the upper side and extend perpendicular to the longitudinal edge of the upper side 214b.

  FIG. 15 is a perspective view of a shaving razor, including a standardized razor blade carrier 30, the adapter unit 210 shown in FIG. 14, and a razor handle end 250. FIG. FIG. 15 shows the adapter unit 210 in a state of being engaged with the razor blade carrier 30. The manner of engaging the adapter unit 210 with the razor blade carrier 30 is the same as described for the two adapter unit embodiments 10 and 110 described above. When the adapter unit 210 and the standardized razor blade carrier 30 are engaged, the central openings 226a and 226b are formed on the inner wall of the support structure 40a and 40b of the standardized razor blade carrier 30 with the cylindrical shaft 42a and 42b (see FIG. 3 and FIG. 4) is aligned with the respective openings.

  The razor handle end 250 includes a main casing 255 from which two arm members 254a and 254b and a central spring-loaded tongue 258 project from one end of the main casing 255. Two buttons 253a and 253b project from the side of the main casing 255 and are coupled to the arm members 254a and 254b to move the arm members inwardly in a manner well known to those skilled in the art. it can. The arm members 254a and 254b are normally spaced apart from each other under spring tension to a distance defined by the main casing 255.

  Arm members 254a and 254b include outwardly extending round pins 256a and 256b, respectively, that form a pivot axis for handle end 250. The dimensions of the round pins 256a and 256b are such that these pins fit into the cylindrical shafts 42a and 42b of the standardized razor blade carrier 30 and are formed by the standardized razor blade carrier 30 and the adapter unit 210. Allows the razor cartridge to pivot relative to the handle end 250.

  In order to engage the razor cartridge with the handle end 250, the arm members 254a and 254b are pushed into the guide structures 216a and 216b of the adapter unit 210. When the arm members 254a and 254b are pushed into the guide structure 216a and 216b, the tapered walls 216a and 216b of the guide structure 216a and 216b are guided by the round pins 256a and 256b, and the cylindrical shaft of the razor blade carrier 30 is guided. Inserted into the openings 42a and 42b (see FIGS. 3 and 4), respectively.

  Once the handle end 250 and the razor cartridge are engaged, the central spring loaded tongue 258 cooperates with the bottom side 214a of the adapter unit 210 to urge the razor cartridge to a neutral rest position. When the razor cartridge rotates, the central tongue 258 strikes the bottom side 214a and cams, compressing the spring loaded central tongue 258 into the main casing 255. When the force on the razor blade carrier 30 is released, the compressed spring-loaded central tongue 258, on the other hand, acts against the bottom side 214a to return the razor cartridge to its original rest position. During the pivoting operation, the projections 215a and 215b prevent the central tongue 258 from moving left and right.

  The adapter unit of the present invention is preferably made of plastic and produced by a two-plate injection molding process. The mold die may be provided with a core pin that does not act mechanically. The plastic material is preferably either polystyrene or ABS. The razor blade carrier and handle used with the adapter unit of the present invention can be produced by any of the materials and processes well known to those skilled in the art for making such parts.

  Although the invention has been described with reference to certain preferred embodiments, various modifications, substitutions and substitutions will be known to those skilled in the art without departing from the spirit and scope of the invention as defined by the claims. It will also be clear. For example, while what has been described in the preferred embodiment has been used to attach various handle designs to a standardized razor blade carrier, the present invention also provides for mounting a single handle design to various razor blade carriers. Can also be used. Furthermore, while various embodiments of the adapter unit have been described and illustrated with respect to a detachable and rotatable razor handle, the adapter unit of the present invention is non-detachable and non-rotatable with appropriate modifications to the engagement means. Can also be used with razor handles. Moreover, although the preferable structure of the protrusion part and the tab was demonstrated regarding engagement with an adapter unit and the standardized razor blade carrier, you may use another structure as another example. Accordingly, the preferred embodiments shown and described are not intended to limit the scope of the invention in any way, the scope of the invention being defined by the claims.

FIG. 1 is a perspective view showing an adapter unit according to a preferred embodiment of the present invention. FIG. 2 is a perspective view showing an adapter unit according to a preferred embodiment of the present invention. FIG. 3 is an exploded perspective view showing a shaving razor including the adapter unit according to the preferred embodiment shown in FIGS. 1 and 2. FIG. 4 is an exploded perspective view showing a shaving razor including the adapter unit according to the preferred embodiment shown in FIGS. 1 and 2. FIG. 5 is a perspective view showing the shaving razor of FIGS. 3 and 4 in which the razor blade carrier, the adapter unit, and the handle are engaged. FIG. 6 is a perspective view showing the shaving razor of FIGS. 3 and 4, in which the razor blade carrier, the adapter unit, and the handle are engaged. FIG. 7 is a perspective view showing an adapter unit according to another preferred embodiment of the present invention. FIG. 8 is a perspective view showing an adapter unit according to another preferred embodiment of the present invention. FIG. 9 is an exploded perspective view showing a shaving razor including the adapter unit according to the preferred embodiment shown in FIGS. 7 and 8. FIG. 10 is a perspective view showing the shaving razor of FIG. 9, in which the razor blade carrier, the adapter unit, and the handle are engaged. 11 is an exploded side view showing a shaving razor including the adapter unit according to the preferred embodiment of FIGS. 7 and 8. FIG. FIG. 12 is an exploded side view showing a shaving razor including the adapter unit according to the preferred embodiment of FIGS. 7 and 8. FIG. 13 is a perspective view showing an adapter unit according to another preferred embodiment of the present invention. FIG. 14 is a perspective view showing an adapter unit according to another preferred embodiment of the present invention. FIG. 15 is an exploded perspective view showing a shaving razor including the adapter unit according to the preferred embodiment shown in FIGS. 13 and 14.

Claims (25)

A razor cartridge for use with the razor handle in which a handle engaging member is extended at one end of the razor handle, the razor cartridge comprising:
A razor blade carrier having a carrier engaging member;
An adapter unit having a first side and a second side;
With
The first side of the adapter unit has a first adapter engagement member shaped to snap-couple with the carrier engagement member for attaching the adapter unit to the razor blade carrier;
The second side portion of the adapter unit has a second adapter engagement member configured to be coupled to the handle engagement member, and the second adapter engagement member is a ball of the handle engagement member. A socket that is shaped to receive and accept the protrusion, so that when the handle engaging member and the second adapter engaging member are engaged, the ball-like protrusion and the The socket and pivot joint form a ball joint,
Further, the adapter unit has a socket with a notch for loosely receiving a protruding T-shaped tongue in the center of the handle when the handle and the adapter unit are engaged , and the tongue and the adapter A socket cooperates to limit the pivot range of the handle relative to the razor cartridge , and the T-shaped tongue and the socket notch cooperate to ensure that the razor handle is in the correct orientation relative to the adapter unit. Guide you to become
Thereby, a handle engaging member is coupled to the razor blade carrier via the adapter unit.   The razor cartridge of claim 1, wherein the first adapter engaging member is snap-coupled to the carrier engaging member in a non-removable engagement.   The razor cartridge according to claim 1, wherein at least one of the adapter engaging member and the carrier engaging member is elastically deformable.   The razor cartridge according to any one of claims 1 to 3, wherein the carrier engagement member includes one or a plurality of claws, and the first adapter engagement member includes an elongated protrusion.   The razor cartridge according to any one of claims 1 to 3, wherein the carrier engaging member includes one or a plurality of slots, and the first adapter engaging member includes one or a plurality of tabs.   The second adapter engaging member is shaped to pivotally couple with the handle engaging member, whereby the handle engaging member is coupled to the razor blade carrier via the adapter unit. The razor cartridge according to claim 5.   7. A razor cartridge according to claim 6, wherein the second adapter engagement member comprises at least one socket configured to receive and receive a rounded protrusion on the handle engagement member.   8. A razor cartridge according to claim 7, wherein the at least one socket comprises a plurality of elastic fingers.   The razor cartridge according to any one of claims 1 to 8, wherein the socket for receiving the ball-shaped protrusion includes a plurality of elastic fingers.   The razor cartridge according to any one of claims 1 to 9, wherein the carrier engaging member and the handle engaging member are not directly connectable.   The razor cartridge according to any one of claims 1 to 10, wherein the adapter is a plastic part.   12. The razor cartridge according to claim 11, wherein the adapter unit is an injection molded part. A razor cartridge for use with the razor handle in which a handle engaging member is extended at one end of the razor handle, the razor cartridge comprising:
A razor blade carrier comprising a razor blade carrier having a first carrier engaging member and a second carrier engaging member, wherein the second carrier engaging member is pivotally engaged with the handle engaging member. The razor blade carrier in the shape of
An adapter unit having a first side and a second side;
With
The first side of the adapter unit has an adapter engagement member shaped to snap-couple with the first carrier engagement member for attaching the adapter unit to the razor blade carrier. ,
An opening is formed in the second side of the adapter unit, the opening guiding the handle engaging member to pivot engagement with the second carrier engaging member,
Thereby, the handle engaging member is coupled to the razor blade carrier via the adapter unit,
Further, the adapter unit has a socket with a notch for loosely receiving a protruding T-shaped tongue in the center of the handle when the handle and the adapter unit are engaged, and the tongue and the A socket cooperates to limit the pivot range of the handle relative to the razor cartridge , and the T-shaped tongue and the socket notch cooperate to ensure that the razor handle is in the correct orientation relative to the adapter unit. A razor cartridge characterized by guiding to become .   The razor cartridge according to claim 13, wherein the first adapter engaging member is configured to be snap-coupled to the carrier engaging member so as not to be removed.   The razor cartridge according to claim 13 or 14, wherein at least one of the adapter engaging member and the carrier engaging member is elastically deformable.   The razor cartridge according to any one of claims 13 to 15, wherein the first carrier engagement member includes one or a plurality of claws, and the adapter engagement member includes an elongated protrusion.   The razor cartridge according to any one of claims 13 to 15, wherein the first carrier engaging member includes one or more slots, and the adapter engaging member includes one or more tabs. The adapter unit is configured to fit into the razor cartridge for use with the handle, the handle comprising an outwardly extending pin that forms a pivot shaft about which the handle pivots relative to the razor blade carrier. Two arm members and a central spring-loaded tongue between the two arm members,
The opening in the second side of the adapter unit includes an opening for each arm member of the handle;
The adapter unit has a bottom side extending between the openings of the second side portion, and when the handle and the adapter unit are engaged, the tongue portion of the central spring load is the adapter unit The razor cartridge according to any one of claims 13 to 17, wherein the razor blade carrier is returned to a rest position after rotating with respect to the handle in cooperation with the bottom side of the razor blade.   The razor cartridge according to claim 18, wherein the adapter unit is a plastic part.   20. The razor cartridge according to claim 19, wherein the adapter unit is an injection molded part. An adapter unit for detachably coupling a razor blade carrier and a razor handle, wherein the razor blade carrier has a carrier engaging member and the razor handle has a handle engaging member. The adapter unit is
Comprising a base having a first side and a second side;
The first side has an adapter engagement member shaped to snap-couple with the carrier engagement member for attaching the base to a razor blade carrier;
The second side portion includes a socket corresponding to the ball-shaped protrusion of the handle engaging member and configured to receive the protrusion, whereby the handle engaging member and the second side portion are connected to each other. When engaged, the ball-shaped protrusion and the socket form a ball joint that can pivot,
The adapter unit has a socket with a notch for loosely receiving a protruding T-shaped tongue at the center of the handle when the handle and the adapter unit are engaged, and the tongue and the socket are Together, the pivot range of the handle relative to the adapter unit is limited , and the T-shaped tongue and the notch in the socket cooperate to position the razor handle in the correct orientation relative to the adapter unit. An adapter unit characterized by guiding as follows.   The adapter unit according to claim 21, wherein the first side portion of the adapter unit is configured to be snap-coupled to the carrier engagement member in a non-removable engagement.   The adapter unit according to claim 21 or 22, wherein at least one of the adapter engaging member and the carrier engaging member is elastically deformable.   The adapter unit according to any one of claims 21 to 23, wherein the second adapter engaging member is configured to be pivotally coupled to the handle engaging member.   An opening is formed in the second side of the base for guiding the handle engaging member into pivot engagement with the second carrier engaging member, so that the handle through the opening is formed. 25. An adapter unit according to any one of claims 21 to 24, wherein insertion of the engagement member allows coupling of the handle engagement member and the razor blade carrier.

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