Razor assembly

Abstract

A razor assembly according to one embodiment of the present disclosure comprises: at least one blade formed with a cutting edge; a blade housing accommodating the at least one blade in a longitudinal direction; the connecting piece is arranged on one side of the blade shell; the shaver handle is connected with the blade shell so as to enable the blade shell to pivot, and the shaver handle comprises a combination part used for being connected with the connecting piece; and a restoring force providing portion for providing a restoring force to pivoting of the blade housing, the restoring force providing portion covering at least a portion of the coupling portion from above the coupling portion.

Description

Technical Field

[0001] This disclosure relates to a razor assembly, and more specifically, to a razor assembly including a razor blade holder and a razor handle. Background Technology

[0002] Generally, a razor is a product used to cut body hair such as facial hair and beard on the face or body. It includes a razor handle for holding and a razor blade holder with razor blades that come into contact with the skin for shaving.

[0003] In order for the razor blade holder to fit snugly against the skin along the various curves of the user's skin, the razor blade holder is pivotally connected to the razor handle.

[0004] The razor handle has a connection for connecting to the razor blade holder, which typically has a structure that allows the razor blade holder to be pivotally connected to the razor handle.

[0005] When the razor handle is separated from the razor blade holder, the joint is exposed to the outside. If an external impact is applied to the joint while it is exposed, the joint is likely to deform or be damaged, making it difficult to properly connect with the razor blade holder.

[0006] During the connection process between the razor handle and the razor blade holder, the connection between the joint and the razor blade holder is often poor, or the user does not recognize the connection direction of the joint relative to the razor blade holder, which often causes inconvenience for the user when connecting the razor handle and the razor blade holder.

[0007] [Prior Art Documents] Korean Patent No. 10-1876233 Summary of the Invention

[0008] [Technical Issues]

[0009] The technical problem to be solved by this disclosure is to provide a razor assembly that minimizes the exposure of the joint in the razor handle for connection with the razor blade holder.

[0010] Furthermore, the technical problem to be solved by this disclosure is to provide a razor assembly that allows the razor handle and the razor blade holder to be easily and accurately connected, and allows the user to easily identify the connection direction of the razor handle relative to the razor blade holder.

[0011] Furthermore, the technical problem to be solved by this disclosure is to provide a razor assembly that reduces the resting angle of the razor blade holder, thereby improving shaving performance and shaving convenience.

[0012] Furthermore, the technical problem to be solved by this disclosure is to provide a razor assembly that minimizes the unintended separation of the razor blade holder and the razor handle during shaving.

[0013] Furthermore, the technical problem to be solved by this disclosure is to provide a razor assembly that improves shaving convenience.

[0014] The technical problems to be solved by this disclosure are not limited to those mentioned above. Other unmentioned problems will become apparent to those skilled in the art from the following description.

[0015] [Technical Solution]

[0016] To address the aforementioned technical challenges, a razor assembly according to an embodiment of this disclosure includes: at least one blade with a cutting edge; a blade housing that longitudinally accommodates the at least one blade; a connector disposed on one side of the blade housing; a razor handle connected to the blade housing to enable the blade housing to pivot, the razor handle including a coupling portion for connecting to the connector; and a restoring force providing portion for providing a restoring force to the pivoting of the blade housing, the restoring force providing portion covering at least a portion of the coupling portion from above.

[0017] Other specific details of this disclosure are contained in the specification and drawings.

[0018] [Beneficial Effects]

[0019] According to embodiments of this disclosure, at least the following effects are achieved.

[0020] The joint, located in the razor handle and connected to the razor blade holder, is not exposed to the outside.

[0021] Therefore, the joint is protected from external impacts, thus extending the lifespan of the razor handle.

[0022] In addition, the razor handle and razor blade holder can be easily and accurately connected.

[0023] In addition, users can easily identify the connection direction of the razor handle relative to the razor blade holder.

[0024] In addition, by lowering the stationary angle of the razor blade holder, shaving performance and ease of shaving can be improved.

[0025] Furthermore, during shaving, unintended separation of the razor blade holder from the razor handle is minimized.

[0026] Furthermore, the convenience of shaving can be enhanced through the function provision section.

[0027] The effects of this disclosure are not limited to those described above; various other effects are included in the description herein. Attached Figure Description

[0028] Figure 1 This is a perspective view of a razor assembly according to an embodiment of the present disclosure.

[0029] Figure 2 This is a plan view of a razor blade holder according to an embodiment of the present disclosure.

[0030] Figure 3 This is a bottom view of a razor blade holder according to an embodiment of the present disclosure.

[0031] Figure 4 This is a perspective view of the bottom of a razor blade holder according to an embodiment of the present disclosure.

[0032] Figure 5 This is an exploded perspective view of the handle head as seen from above, according to an embodiment of the present disclosure.

[0033] Figure 6 This is an exploded perspective view of the handle head viewed from below according to an embodiment of the present disclosure.

[0034] Figure 7 This is a diagram showing the positional relationship of the first arm, the second arm, and the pusher in a neutral state.

[0035] Figure 8 It is a diagram showing the positional relationship of the first arm, the second arm, and the pusher during the connection process.

[0036] Figure 9 It is a diagram showing the positional relationship of the first arm, the second arm, and the pusher during the separation process.

[0037] Figure 10 This is a plan view of the handle head in a state before it is connected to the razor blade holder according to an embodiment of the present disclosure.

[0038] Figure 11 It is shown Figure 10 The top view of the handle head in the indicated state.

[0039] Figure 12 This is a plan view of the connection state between the handle head and the razor blade holder according to an embodiment of the present disclosure.

[0040] Figure 13 It is shown Figure 12 The top view of the handle head in the indicated state.

[0041] Figure 14 It shows from Figure 12 A perspective view of a portion of the shaver assembly with the plunger omitted in the shown state.

[0042] Figure 15 This is a perspective view of the plunger according to the second embodiment of the present disclosure.

[0043] Figure 16 This is a bottom view showing the handle head of the razor blade holder in a state where the plunger of the second embodiment of the present disclosure is separated from the razor blade holder.

[0044] Figure 17 This is a bottom view showing the handle head of the razor blade holder connected to the plunger using the second embodiment of this disclosure.

[0045] Figure 18 This is a bottom view of an alternative example of a razor blade holder according to an embodiment of the present disclosure.

[0046] Figure 19 This is a diagram showing a portion of the handle head according to a third embodiment of the present disclosure.

[0047] Figure 20 This is a schematic cross-sectional view of the handle head according to the third embodiment of the present disclosure.

[0048] Figure 21 This is a diagram showing a portion of the handle head according to a fourth embodiment of the present disclosure.

[0049] Figure 22 This is a bottom view of the plunger according to the fourth embodiment of this disclosure.

[0050] Figure 23 This is a diagram showing the connection state between the lower housing of the plunger and the plunger according to the fourth embodiment of this disclosure.

[0051] Figure 24 This is a schematic cross-sectional view of the handle head according to the fourth embodiment of this disclosure.

[0052] Figure 25 This is a perspective view of the joint according to the fifth embodiment of this disclosure.

[0053] Figure 26 This is a side view of the joint according to the fifth embodiment of this disclosure.

[0054] Figure 27 This is a front view of the joint according to the fifth embodiment of this disclosure.

[0055] Figure 28 This is a diagram showing the connection state between the joint and the razor blade holder in a stationary state according to the fifth embodiment of this disclosure.

[0056] Figure 29 This is a diagram showing the connection state between the joint and the razor blade holder in the maximum pivoting state according to the fifth embodiment of this disclosure.

[0057] Figure 30 This is a diagram showing a razor assembly according to an embodiment of the present disclosure placed on the ground.

[0058] Figure 31 This is a side view showing the detached state of a razor handle including a connecting portion according to a fifth embodiment of the present disclosure.

[0059] Figure 32 This is a plan view showing the detached state of a razor handle including a connecting portion according to a fifth embodiment of the present disclosure.

[0060] Figure 33 This is a diagram showing the neutral state of the joint according to the fifth embodiment of this disclosure.

[0061] Figure 34 This is a diagram illustrating the state of the connection process according to the fifth embodiment of this disclosure.

[0062] Figure 35 This is a perspective view of the joint according to the sixth embodiment of this disclosure.

[0063] Figure 36 This is a bottom view of the plunger according to the sixth embodiment of this disclosure.

[0064] Figure 37 and Figure 38 This is a diagram illustrating whether the plunger according to the sixth embodiment of the present disclosure blocks the joint portion of the sixth embodiment in the forward state.

[0065] Figure 39 This diagram illustrates whether the plunger according to the sixth embodiment of the present disclosure blocks the joint portion of the sixth embodiment in the retracted state. Detailed Implementation

[0066] The advantages and features of this disclosure, as well as methods for achieving these advantages and features, will become more apparent from the embodiments described in detail below with reference to the accompanying drawings. However, this disclosure is not limited to the disclosed embodiments, but can be implemented in many different ways. The embodiments described are merely illustrative of the completeness of this disclosure and to enable those skilled in the art to understand its scope. This disclosure is defined by the scope of the claims.

[0067] Furthermore, embodiments of this disclosure will be described with reference to sectional views and / or schematic diagrams, which are idealized exemplary illustrations. Therefore, the shapes of these illustrations may vary depending on manufacturing processes, tolerances, etc. Additionally, for ease of explanation, the constituent elements in the drawings may be relatively enlarged or reduced. Throughout the specification, the same reference numerals denote the same constituent elements.

[0068] Additionally, when describing the constituent elements according to an embodiment of this disclosure, terms such as first, second, i), ii), a), and b) may be used. These terms are used only to distinguish one constituent element from other constituent elements and do not limit the substance, order, or sequence of the constituent elements. In this specification, when a portion "comprises" or "includes" a constituent element, unless expressly stated otherwise, this means that the portion may further include other constituent elements, rather than excluding other constituent elements.

[0069] The razor assembly according to an embodiment of the present disclosure will now be described with reference to the accompanying drawings.

[0070] Figure 1 This is a perspective view of a razor assembly 1 according to an embodiment of the present disclosure.

[0071] Reference Figure 1 According to one embodiment, a razor assembly 1 includes a razor blade holder 10 and a razor handle 20 pivotally connected to the razor blade holder 10.

[0072] The razor handle 20 includes a handle body 21 and a handle head 22.

[0073] The handle body 21 is the part that the user holds.

[0074] The handle head 22 is located at one end of the handle body 21, and is detachably connected to the razor blade holder 10, and pivotally supports the connected razor blade holder 10.

[0075] The handle head 22 is detachably connected to the connector 180 formed on the razor blade holder 10 and can pivotally support the razor blade holder 10 within a predetermined angular range about a fixed axis or an axis that moves within a predetermined range. For example, the razor blade holder 10 can be pivotally supported relative to the razor handle 20 from a rest position (i.e., the position where the razor blade holder 10 is not subjected to external force when connected to the razor handle 20) within an angular range of less than or equal to 90 degrees, preferably within an angular range of less than or equal to 50 degrees, and more preferably within an angular range of less than or equal to 45 degrees. Details regarding the handle head 22 will be described later.

[0076] Figure 2 This is a plan view of a razor blade holder 10 according to an embodiment of the present disclosure. Figure 3 This is a bottom view of a razor blade holder 10 according to an embodiment of the present disclosure. Figure 4 This is a perspective view of the bottom of a razor blade holder 10 according to an embodiment of the present disclosure.

[0077] Reference Figure 2The razor blade holder 10 may include all or part of the blade housing 110, a plurality of blades 120, a clip 130, a guard 140, and a cap 150.

[0078] The blade housing 110 can accommodate each blade 120 longitudinally, and the blades 120 can be arranged in a row transversely. (Refer to...) Figure 2 Vertical refers to the horizontal direction, and horizontal refers to the vertical direction. Figure 2 An example of a razor blade holder 10 including five blades 120 is shown, but the number of blades 120 may vary depending on the embodiment.

[0079] The upper surface of the blade housing 110 described below refers to the surface that comes into contact with or faces the user's skin during shaving, and may be the surface toward which the cutting edges of each blade 120 face. Figure 2 The upper surface of the blade housing 110 is shown.

[0080] Furthermore, the lower surface of the blade housing 110 refers to the surface located on the opposite side of the upper surface. Figure 3 The lower surface of the blade housing 110 is shown.

[0081] Furthermore, the front of the blade housing 110 can be in the direction in which the blade housing 110 moves relative to the user's skin during shaving (shaving direction). For example, see reference... Figure 2 The front of the blade housing 110 can be in the direction from the blade 120 toward the guard strip 140.

[0082] Furthermore, the rear of the blade housing 110 can be in the opposite direction to the aforementioned front, see reference. Figure 2 The rear of the blade housing 110 can be in the direction from the blade 120 toward the cover 150.

[0083] The clip 130 is a component for preventing the plurality of blades 120 from separating from the blade housing 110, and can be connected to the blade housing 110 in various ways according to embodiments. Alternatively, other components (e.g., a cover that integrates with the upper surface of the blade housing 110) may be used instead of the clip 130 to prevent the plurality of blades 120 from separating from the blade housing 110.

[0084] The guard strip 140 can be disposed on the front upper surface of the blade housing 110.

[0085] The shaving strip 140 makes close contact with and pulls on the user's skin during shaving to enhance the shaving effect of the blade 120. To pull on the user's skin more effectively, the shaving strip 140 may have a textured or embossed pattern on its upper surface, and the upper surface of the shaving strip 140 may be made of materials such as rubber or silicone.

[0086] The cover 150 may be disposed on the rear upper surface of the blade housing 110.

[0087] The cap 150 may include a lubricating strip exposed on the upper surface of the blade housing 110. The lubricating strip includes a lubricating substance that is applied to the skin surface traversed by the blade 120 during shaving. The lubricating substance may include ingredients for protecting the skin after shaving.

[0088] Reference Figure 3 and Figure 4 The blade housing 110 may include a cam support 111 on its lower surface and a cam 112 protruding from the cam support 111. When the razor blade holder 10 is connected to the razor handle 20, the cam 112 may contact the plunger 240 (described later) to limit the pivoting movement of the razor blade holder 10. The cam support 111 may be located at the center of the lower surface of the blade housing 110 to support the bases of the plurality of blades 120. The cam support 111 may be formed with a mark 113 (e.g., an arrow mark) for indicating the connection direction of the handle head 22 of the razor handle 20.

[0089] The razor blade holder 10 may include a connector 180. The connector 180 is a component for detachably connecting to the handle head 22 of the razor handle 20. The connector 180 may be connected to the blade housing 110 on the lower surface of the blade housing 110, or integrally formed with the blade housing 110. Alternatively, the connector 180 may be fixedly mounted on the blade housing 110.

[0090] The connector 180 can be positioned in a location that does not overlap with the blades 120 so that shaving residue (e.g., shaving cream, cut body hair, etc.) can be effectively discharged with the rinsing water through the space between the multiple blades 120.

[0091] The connector 180 may include a pair of guide posts 181, a pair of opposing plunger ends 182, and a pair of guide surfaces 183.

[0092] A pair of guide posts 181 may be formed by protruding from the blade housing 110 at intervals in the longitudinal direction. The space between the pair of guide posts 181 forms a space for the plunger 240 (described later) of the shaver handle 20 to enter. In order to allow the plunger 240 to enter smoothly, one side of each guide post 181 (i.e., the surface facing the other guide post 181) may be formed with an inclined surface so that the gap between the pair of guide posts 181 gradually narrows toward the cam 112.

[0093] A pair of opposing plunger ends 182 may be longitudinally spaced between a pair of guide posts 181 and protrude from the blade housing 110. The opposing plunger ends 182 may have a height difference relative to the guide posts 181, so that the guide posts 181 can protrude further from the blade housing 110 than the opposing plunger ends 182. When the razor blade holder 10 is connected to the razor handle 20, the opposing plunger ends 182 may be adjacent to the plunger 240 (described later) or support the plunger 240.

[0094] Reference Figure 3 and Figure 4 A pair of guide surfaces 183 form inclined surfaces from the opposing ends 182 of the plunger, such that the gap between the pair of guide surfaces 183 gradually narrows toward the cam 112. A receiving space 184 is formed between each guide surface 183 and the blade housing 110 (see...). Figure 4 ), for receiving the first end portion 291c (see below) of the joint 290 (described later). Figure 5 ) and the second end 292c (see Figure 5 A pair of guide surfaces 183 guide the first end 291c and the second end 292c of the joint 290 (described later) to approach each other as they enter between the pair of guide surfaces 183. After passing the pair of guide surfaces 183, the first end 291c and the second end 292c move away from each other again and enter the receiving space 184, thereby completing the connection between the razor blade holder 10 and the razor handle 20 (see...). Figure 14 ).

[0095] Reference Figure 3 The distance A1 between a pair of guide surfaces 183 can be determined in the range of approximately 16.8 mm to 25.2 mm. For example, A1 can be approximately 21 mm. The distance A1 between a pair of guide surfaces 183 can be the distance between the boundary of the plunger opposing end 182 and the guide surface 183.

[0096] In order for the first end 291c and the second end 292c to smoothly enter between a pair of guide surfaces 183, the distance A2 between the first end 291c and the second end 292c (see...) Figure 7 The distance A1 between the pair of guide surfaces 183 can be shorter than the distance between them. The distance A2 between the first end 291c and the second end 292c can be determined in the range of 13.52 mm to 20.28 mm. For example, A2 can be 16.9 mm. The distance A2 between the first end 291c and the second end 292c can be formed by the inclined surface of the first end 291c in the first arm 291 in the negative X-axis direction (see...). Figure 7 The starting position is aligned with the inclined surface of the second end 292c in the second arm 292 in the positive X-axis direction (see...). Figure 7 The distance between the starting positions.

[0097] A pair of receiving spaces 184 can accommodate the first end 291c and the second end 292c, thereby forming the pivot axis of the razor blade holder 10 relative to the razor handle 20. According to one embodiment, the pair of receiving spaces 184 are arranged near the upper surface of the blade housing 110, so that the pivot axis of the razor blade holder 10 is formed near the shaving plane where shaving is actually performed, thereby enabling close shaving.

[0098] The connection and separation between the connector 180 and the joint 290 will be described in more detail later.

[0099] The razor blade holder 10 may also include a trimming blade 160 and a trimming guard 170.

[0100] The trimming blade 160 is housed between the trimming guard 170 and the blade housing 110, allowing its cutting edge to be exposed towards the rear of the razor blade holder 10. The trimming blade 160 can be used to cut hair in relatively narrow areas, such as sideburns and mustaches. The trimming guard 170 may be formed with multiple longitudinally arranged comb teeth to groom the hair before the trimming blade 160 cuts.

[0101] The handle head 22 of the razor handle 20 will now be described.

[0102] Figure 5 This is an exploded perspective view of the handle head 22 as viewed from above, according to an embodiment of the present disclosure. Figure 6 This is an exploded perspective view of the handle head 22 viewed from below according to an embodiment of the present disclosure.

[0103] Reference Figure 5 and Figure 6 According to one embodiment of the present disclosure, the handle head 22 may include an operation part 210, a restoring force providing part 220, and a connecting part 290.

[0104] The operating unit 210 operates the connecting part 290 by moving the pusher 250 and the pin 280, which will be described later. The user can operate the operating unit 210 while the razor blade holder 10 is connected to the razor handle 20, thereby separating the razor blade holder 10 from the razor handle 20. This will be described in further detail later.

[0105] Reference Figure 5 The operating part 210 is located on the upper part of the handle head 22 (see...). Figure 1The upper surface of the shaver has, but is not limited to, a friction surface 211 for increasing friction with the user's fingers, a stepped portion 212 for preventing the user's fingers from slipping, and an upwardly inclined surface 213 for supporting the user's fingers. The friction surface 211, the stepped portion 212, and the inclined surface 213 make it easier for the user to move the operating part 210 when pushing it with their finger (e.g., thumb) in a first direction. Here, the first direction can be the direction from the handle head 22 toward the shaver blade holder 10. (See reference...) Figure 5 and Figure 6 The first direction is the positive Y-axis. The X-axis is the vertical direction perpendicular to the Y-axis on the horizontal plane. The positive Z-axis points upward, and the negative Z-axis points downward.

[0106] Reference Figure 6 The lower surface of the operating section 210 is provided with a pusher engagement portion 214 extending downward (along the negative Z-axis direction). The pusher engagement portion 214 passes through the upper plunger housing 230 (described later) and connects with the pusher 250 housed in the plunger housings 230 and 270. Therefore, the pusher 250 housed in the plunger housings 230 and 270 moves integrally with the operating section 210 located outside the plunger housings 230 and 270.

[0107] The restoring force providing part 220 is configured to provide a restoring force to the razor blade holder 10, so that the razor blade holder 10 can pivot relative to the razor handle 20 within a certain angular range. (See reference...) Figure 5 and Figure 6 According to one embodiment of this disclosure, the handle head 22 includes a plunger 240 as a restoring force providing part 220. However, it is not limited to this; the restoring force providing part 220 may also include a cantilever structure and / or a rubber member with elastic force, etc., to provide restoring force to the razor blade holder 10. Hereinafter, for ease of explanation, an example of the restoring force providing part 220 including the plunger 240 will be described.

[0108] The plunger housings 230 and 270 include an upper plunger housing 230 and a lower plunger housing 270. The upper plunger housing 230 and the lower plunger housing 270 form a receiving space for accommodating the plunger 240, the pusher 250, and the coupling 290.

[0109] Reference Figure 5 The upper housing 230 of the plunger can be formed with a pusher connecting groove 231 and a first pin through groove 232. The pusher connecting groove 231 and the first pin through groove 232 can be formed to be relatively long along a first direction.

[0110] The pusher engagement portion 214 of the operating unit 210 passes through the pusher connecting groove 231, and one end of the pin 280 passes through the first pin through groove 232 and is connected to the operating unit 210. The pusher engagement portion 214 is movable along the pusher connecting groove 231 in a first direction, and the pin 280 is movable along the first pin through groove 232 in a first direction. Therefore, the operating unit 210 is movable relative to the upper plunger housing 230 in a first direction.

[0111] Reference Figure 6 The distal end 233 of the upper plunger housing 230 may be open in a first direction to expose, or appear from or be hidden from the upper plunger housing 230, at least partially, the plunger 240 and the engagement portion 290.

[0112] Refer again Figure 5 The distal end 271 of the lower plunger housing 270 may also be open in the first direction to expose, or appear from or be hidden from the lower plunger housing 270, at least partially, the plunger 240 and the engagement portion 290.

[0113] The lower housing 270 of the plunger may have a first arm rotating pin 273 and a second arm rotating pin 272 formed therein, and the first arm 291 and the second arm 292 of the coupling portion 290 are rotatably mounted thereon.

[0114] Furthermore, the lower plunger housing 270 may have an internally formed support base 274 for defining the retraction limit of the pusher 250 in a first direction. The support base 274 may be arranged between the first arm pivot pin 273 and the second arm pivot pin 272 without restricting the intended rotation of the first arm 291 and the second arm 292. Furthermore, the first arm 291 may be elastically supported by an elastic member 276 disposed between the support base 274 and the first arm 291, and the second arm 292 may be elastically supported by an elastic member 275 disposed between the support base 274 and the second arm 292. In other words, the first arm 291 and the second arm 292 may be elastically supported by the support base 274. The first arm 291 and the second arm 292 may be elastically supported in the direction in which their respective elastic members 275 and 276 are stretched. In other words, the elastic members 275 and 276 may provide a restoring force that pulls them apart when the first end 291c and the second end 292c are exposed outside the plunger housings 230 and 270.

[0115] Reference Figure 5 and Figure 6 The lower housing 270 of the plunger can be formed with a second pin groove 277. The second pin groove 277 can be formed to be relatively long along the first direction.

[0116] The other end of the pin 280 can pass through the second pin groove 277 and be exposed to the lower part of the plunger housing 270 (along the negative Z-axis direction). The other end of the pin 280 is provided with a flange 281 with a diameter greater than the width of the second pin groove 277 to prevent the other end of the pin 280 from entering the plunger housings 230 and 270.

[0117] When the operating part 210 moves, the pin 280 moves together with the operating part 210 along the first pin through groove 232 and the second pin through groove 277 in the first direction, thereby limiting the direction of movement of the operating part 210 to a direction parallel to the first direction.

[0118] Reference Figure 5 The pusher 250 may include an operation unit coupling 251 connected to the pusher coupling 214 of the operation unit 210. Figure 5 and Figure 6 An example of a hook-type connection structure is shown between the pusher connector 214 and the operation connector 251, but the pusher connector 214 and the operation connector 251 can also be changed to various other connection structures.

[0119] In addition, the pusher 250 may have a third pin through groove 252 through which the central portion of the pin 280 passes.

[0120] Reference Figure 5 and Figure 6 A pair of driving protrusions 253 are formed longitudinally spaced on the lower surface of the pusher 250. These driving protrusions 253 are respectively arranged to contact the first driving surface 291b of the first arm 291 and the second driving surface 292b of the second arm 292 (described later). When the pusher 250 moves forward / backward, the driving protrusions 253 interact with the first driving surface 291b and the second driving surface 292b, enabling the first arm 291 to rotate about the first arm rotating pin 273 and the second arm 292 to rotate about the second arm rotating pin 272. This will be described in further detail later.

[0121] The distal end of the pusher 250 may form a first elastic member mounting portion 254, on which one end of the elastic member 260 is mounted, the elastic member 260 being used to elastically support the pusher 250 and the plunger 240.

[0122] Reference Figure 5 and Figure 6 The plunger 240 may include a top cover 241, a first sidewall 243 extending downward from one side of the top cover 241, and a second sidewall 242 extending downward from the other side of the top cover 241.

[0123] The plunger 240 can be configured to slide within the plunger housings 230 and 270 along a first direction. When the plunger 240 is elastically supported by the elastic member 260 and is at its forward limit point in the first direction, the upper cover 241 can be arranged to cover all or part of the first end 291c of the first arm 291 and the second end 292c of the second arm 292. When the elastic member 260 supporting the plunger 240 is compressed and the plunger 240 is at its backward limit point in the first direction, the upper cover 241 can be arranged to expose the first end 291c of the first arm 291 and the second end 292c of the second arm 292 to the outside.

[0124] The top cover 241 may have a cam contact portion 245 formed at its distal end, which contacts the cam 112 of the razor blade holder 10. The shape of the cam contact portion 245 may be configured to define the pivoting movement of the razor blade holder 10 relative to the razor handle 20 by interacting with the shape of the cam 112. The cam contact portion 245 may be formed in the top cover 241 as recessed and / or raised.

[0125] The top cover 241 may have a mark 246 (e.g., an arrow mark) for indicating the connection direction of the handle head 22 relative to the razor blade holder 10. The mark 246 allows the user to easily identify the connection direction of the razor handle 20 relative to the razor blade holder 10. During the connection process between the razor blade holder 10 and the razor handle 20, the mark 246 is formed at a position aligned with the mark 113 formed on the razor blade holder 10 in the connection direction, thereby enabling the user to more clearly identify the connection direction of the razor handle 20 relative to the razor blade holder 10.

[0126] The plunger 240 may form a second elastic member mounting portion 244 at its rear end, on which the other end of the elastic member 260 is mounted, the elastic member 260 being used to elastically support the pusher 250 and the plunger 240.

[0127] Reference Figure 5 The joint 290 may include a first arm 291 and a second arm 292 that are spaced apart from each other along the longitudinal direction.

[0128] exist Figure 5In the illustrated embodiment, the connecting portion 290 includes a first arm 291 and a second arm 292, but this disclosure is not limited thereto. The connecting portion 290 can be detachably connected to the razor blade holder 10 using various structures. For example, in addition to the first arm 291 and the second arm 292, the connecting portion 290 can also be detachably connected to the razor blade holder 10 using a latch coupling method, a hook coupling method, a snap-fit ​​coupling method, a boss coupling method, a magnetic connection method, etc. However, for ease of explanation, the following description will be based on an example where the connecting portion 290 includes the first arm 291 and the second arm 292.

[0129] Furthermore, as described above, the restoring force providing part 220 may be included in the razor handle 20, but this disclosure is not limited thereto. According to an embodiment, the restoring force providing part 220 may also be included in the razor blade holder 10.

[0130] In this configuration, the restoring force providing part 220 can be arranged on the connector 180, and the connector 180 can be pivotally connected to the blade housing 110. Furthermore, as described above, the restoring force providing part 220, in addition to the elastically supported plunger 240, can include a cantilever structure and / or a rubber member with elastic force to provide a restoring force to the razor blade holder 10. When the restoring force providing part 220 is provided in the razor blade holder 10, during the connection or separation of the razor blade holder 10 and the razor handle 20, the restoring force providing part 220 can cover at least a portion of the connecting part 290; and when the razor blade holder 10 is connected to the razor handle 20, the restoring force providing part 220 can cover at least a portion of the connecting part 290.

[0131] The first arm 291 may include a first drive arm 291a, a first drive surface 291b, and a first end 291c.

[0132] One side of the first drive arm 291a is rotatably mounted on the first arm rotating pin 273. The first drive arm 291a extends toward the distal end of the opening of the plunger housings 230, 270.

[0133] The first driving surface 291b may constitute part of the outer surface of the first driving arm 291a, and may be formed as a surface that is inclined outward in the first direction, but is not limited thereto.

[0134] The first end portion 291c is formed on the other side of the first drive arm 291a that is exposed outside the plunger housings 230 and 270. The first end portion 291c may be formed to protrude outward from the first drive arm 291a. The front side of the first end portion 291c may be formed to be inclined in the negative X-axis direction, and the rear side of the first end portion 291c may be formed to be a stepped portion that is substantially perpendicular to the first drive arm 291a, but is not limited thereto. For example, when the first end portion 291c is detachably connected to the razor blade holder 10 via a shell-bearing coupling method, the first end portion 291c may include a shell-bearing component.

[0135] When the front side of the first end 291c is formed to be inclined in the negative X-axis direction, when the razor blade holder 10 is connected to the razor handle 20, the first end 291c moves smoothly along the guide post 181, the plunger opposing end 182, and the guide surface 183 of the connector 180, and the first drive arm 291a rotates naturally around the first arm rotating pin 273, thereby guiding the razor blade holder 10 to be smoothly connected to the razor handle 20. However, the shape of the front side of the first end 291c can vary depending on the structure of the connector 180, and can be configured to not have an inclined surface in the negative X-axis direction.

[0136] When the rear side of the first end 291c forms a stepped portion that is substantially perpendicular to the first drive arm 291a, the first end 291c can be prevented from disengaging in the negative Y-axis direction when it is inserted into the receiving space 184, thereby allowing the razor blade holder 10 and the razor handle 20 to remain connected. The rear side of the first end 291c can be modified into various shapes so that it is not necessary to form a stepped portion that is substantially perpendicular to the first drive arm 291a, and the first end 291c can be prevented from disengaging in the negative Y-axis direction when it is inserted into the receiving space 184.

[0137] The second arm 292 may include a second drive arm 292a, a second drive surface 292b, and a second end 292c.

[0138] One side of the second drive arm 292a is rotatably mounted on the second arm pivot pin 272. The second drive arm 292a extends toward the distal end of the opening of the plunger housings 230, 270.

[0139] The second driving surface 292b may constitute part of the outer surface of the second driving arm 292a, and may be formed as a surface that is inclined outward in the first direction, but is not limited thereto.

[0140] The second end portion 292c is formed on the other side of the second drive arm 292a that is exposed outside the plunger housings 230 and 270. The second end portion 292c may be formed to protrude outward from the second drive arm 292a. The front side of the second end portion 292c may be formed to be rearwardly inclined, and the rear side of the second end portion 292c may be formed to be a stepped portion substantially perpendicular to the second drive arm 292a, but is not limited thereto. For example, when the second end portion 292c is detachably connected to the razor blade holder 10 via a shell-bearing coupling method, the second end portion 292c may include a shell-bearing component.

[0141] When the front side of the second end 292c is formed to be inclined in the positive X-axis direction, when the razor blade holder 10 is connected to the razor handle 20, the second end 292c moves smoothly along the guide post 181, the plunger opposing end 182, and the guide surface 183 of the connector 180, and the second drive arm 292a rotates naturally around the second arm rotating pin 272, thereby guiding the razor blade holder 10 to be smoothly connected to the razor handle 20. However, the shape of the front side of the second end 292c can vary depending on the structure of the connector 180, and can be configured to not have a surface inclined in the positive X-axis direction.

[0142] When the rear side of the second end 292c forms a stepped portion that is substantially perpendicular to the second drive arm 292a, it can prevent the second end 292c from disengaging in the negative Y-axis direction when the second end 292c is inserted into the receiving space 184, thereby maintaining the connection between the razor blade holder 10 and the razor handle 20. The rear side of the second end 292c can be modified into various shapes so that it is not necessary to form a stepped portion that is substantially perpendicular to the second drive arm 292a, and to prevent the second end 292c from disengaging in the negative Y-axis direction when the second end 292c is inserted into the receiving space 184.

[0143] Figure 7 This is a diagram showing the positional relationship of the first arm 291, the second arm 292, and the pusher 250 in a neutral state.

[0144] Figure 7 The neutral state refers to the state in which no other external force is applied to the pusher 250, the first arm 291, and the second arm 292. Therefore, in the neutral state, the pusher 250 can be located at or near the retreat limit point, and the first arm 291 and the second arm 292 can be extended outwards from each other as much as possible.

[0145] The state in which the razor handle 20 is completely separated from the razor blade holder 10 (separated state) and / or the state in which the razor handle 20 is completely connected to the razor blade holder 10 (connected state) can be a neutral state.

[0146] On the other hand, even in the same neutral state, the position of the plunger 240 will differ depending on whether it is in a separated or connected state. For example, in the separated state, the plunger 240 may be positioned forward, so that the first end 291c and the second end 292c can be covered by the plunger 240 (see...). Figure 11 In the connected state, the plunger 240 can be moved back, so that the first end 291c and the second end 292c can be exposed to the outside of the plunger 240.

[0147] On the other hand, the separated state and / or connected state may not be a neutral state. For example, when the first end 291c and the second end 292c in the separated state are supported on the first sidewall 243 and the second sidewall 242 of the plunger 240, respectively, the distance between the first end 291c and the second end 292c in the separated state may be shorter than the distance between the first end 291c and the second end 292c in the neutral state. Alternatively, in the connected state, the first drive arm 291a, the first end 291c, the second drive arm 292a, and / or the second end 292c may be supported on the connector 180, for example, on the guide surface 183, such that the distance between the first end 291c and the second end 292c in the connected state may be shorter than the distance between the first end 291c and the second end 292c in the neutral state.

[0148] However, when the first end 291c and the second end 292c in the separated state are not supported by the first sidewall 243 and the second sidewall 242 of the plunger 240 respectively, but are arranged close to the first sidewall 243 and the second sidewall 242, the distance between the first end 291c and the second end 292c can be substantially the same in the separated state and the neutral state, or in the separated state, the neutral state and the connected state.

[0149] Reference Figure 7 In the separated and / or connected states, the pusher 250 can be located at or near the retraction limit point in the first direction. In this case, the drive protrusion 253 of the pusher 250 can be located at the innermost point of the first drive surface 291b and the innermost point of the second drive surface 292b, respectively. Furthermore, the pusher 250 can be supported on the support base 274.

[0150] Figure 8 This diagram illustrates the positional relationship of the first arm 291, the second arm 292, and the pusher 250 during the connection process. In this specification, the connection process refers to the process of connecting the razor handle 20 to the razor blade holder 10; in other words, it is the intermediate process from the separated state to the connected state.

[0151] When the connector 180 of the razor blade holder 10 approaches the handle head 22, the distal end 241a of the plunger 240 contacts the blade housing 110, and then the plunger 240, supported by the plunger opposing end 182 and / or guide surface 183, retracts rearward in the first direction into the plunger housings 230, 270 (see...). Figure 10 and Figure 12 The contact between the distal end 241a of the plunger 240 and the blade housing 110 can occur before the distal ends 291d and 292d of the first arm 291 and the second arm 292 contact the connector 180. In this case, the contact between the distal ends 291d and 292d of the first arm 291 and the second arm 292 and the connector 180 can occur after the plunger 240 has retracted a predetermined distance in the first direction.

[0152] Alternatively, the contact between the distal end 241a of the plunger 240 and the blade housing 110 can occur simultaneously with the contact between the distal ends 291d and 292d of the first arm 291 and the second arm 292 and the connector 180.

[0153] Alternatively, the contact between the distal ends 291d and 292d of the first arm 291 and the second arm 292 and the connector 180 may occur before the distal end 241a of the plunger 240 contacts the blade housing 110.

[0154] The lower surface region of the blade housing 110, which contacts the pusher 240, can be formed to correspond to at least a portion of the shape of the distal end 241a of the plunger 240. This allows the plunger 240 and the blade housing 110 to maintain stable contact with each other, and the connection position of the connector 180 and the handle head 22 to be naturally aligned. Furthermore, the user's ability to identify the alignment direction of the connector 180 and the handle head 22 is improved.

[0155] For example, the plunger opposing end 182 and / or guide surface 183 of the connector 180 may be formed to correspond to the shapes of the two sides of the distal end 241a of the plunger 240 and the shapes of the two sidewalls 242 and 243 of the plunger 240. Alternatively, the distal end 241a of the plunger 240 may be formed with a protrusion, causing its longitudinal (X direction) width to gradually narrow in the first direction, while the lower surface region of the blade housing 110 that contacts the distal end 241a may be formed with a concave shape to fit the distal end 241a.

[0156] As the connector 180 and the handle head 22 approach each other further, the first end 291c of the first arm 291 and the second end 292c of the second arm 292 pass along the guide surface 183, or sequentially pass through the plunger-opposite end 182 and the guide surface 183, as... Figure 8As shown, the first arm 291 and the second arm 292 rotate around the first arm pivot pin 273 and the second arm pivot pin 272, respectively, causing the first end 291c and the second end 292c to move closer to each other. Elastic members 275 and 276 provide restoring forces to the first arm 291 and the second arm 292, respectively, in a direction that increases the distance between the first end 291c and the second end 292c, thereby enabling the first end 291c and the second end 292c to move while maintaining contact with the guide surface 183.

[0157] After the first end 291c and the second end 292c pass through the guide surface 183, under the restoring force provided by the elastic members 275 and 276, the first end 291c and the second end 292c enter the receiving space 184 and move to... Figure 7 The neutral state shown is the connected state.

[0158] Back Figure 8 During the connection process between the razor blade holder 10 and the razor handle 20, the pusher 250 may not move from a neutral state. In other words, even if the user does not need to operate the operating unit 210 to bring the first arm 291 and the second arm 292 closer together during the connection process, the connection between the razor blade holder 10 and the razor handle 20 can be completed.

[0159] The connector 180 includes a guide surface 183, which allows the first end 291c of the first arm 291 and the second end 292c of the second arm 292 to naturally enter the receiving space 184 by simply bringing the razor blade holder 10 and the razor handle 20 close to each other.

[0160] In addition, the handle head 22 includes elastic members 275 and 276, which provide restoring force to the first arm 291 and the second arm 292, thereby guiding the first end 291c and the second end 292c to immediately and naturally enter the receiving space 184 after passing the guide surface 183, with the simple action of the user bringing the razor blade holder 10 and the razor handle 20 close to each other.

[0161] Furthermore, even if the user simply performs a simple action to bring the razor blade holder 10 and the razor handle 20 closer together, the plunger 240 will be supported on the blade housing 110 and retract into the plunger housings 230 and 270. Simultaneously, the first end 291c of the first arm 291 and the second end 292c of the second arm 292 will automatically be exposed from the plunger 240 and connected to the connector 180. In other words, in the disengaged state, the first end 291c of the first arm 291 and the second end 292c of the second arm 292 are covered by the plunger 240 and not exposed to the outside, but the user does not need to operate the plunger 240 separately to connect the razor blade holder 10 to the razor handle 20.

[0162] Therefore, during the connection process between the razor blade holder 10 and the razor handle 20, the user only needs to bring the razor blade holder 10 and the razor handle 20 close to each other to complete the connection, without having to operate the operating part 210 or the plunger 240.

[0163] Figure 9 This diagram illustrates the positional relationship of the first arm 291, the second arm 292, and the pusher 250 during the separation process. In this specification, the separation process refers to the process of separating the razor handle 20 from the razor blade holder 10; in other words, it is the intermediate process from the connected state to the separated state.

[0164] In order to separate the razor blade holder 10 and the razor handle 20, the user can move the operating part 210 forward in a first direction, thereby causing the pusher 250 to move forward in the first direction.

[0165] Reference Figure 9 As the pusher 250 advances along the first direction, the drive protrusion 253 of the pusher 250 moves along the first drive surface 291b and the second drive surface 292b simultaneously. As the drive protrusion 253 advances along the first direction, the first arm 291 rotates clockwise around the first arm rotating pin 273, and the second arm 292 rotates counterclockwise around the second arm rotating pin 272, thereby causing the first end 291c and the second end 292c to gradually approach each other.

[0166] Since the pusher 250 moves integrally with the operating unit 210, the user can bring the first end 291c and the second end 292c closer together by moving the operating unit 210 forward in the first direction. When the user wishes to separate the razor blade holder 10 and the razor handle 20, the first end 291c and the second end 292c can be brought closer together by moving the operating unit 210 forward in the first direction, thereby separating the first end 291c and the second end 292c from the connector 180 of the razor blade holder 10.

[0167] exist Figure 9 In the state shown, when the user releases the force applied to the operating part 210 moving in the first direction, the first arm 291 and the second arm 292 return to their original positions under the restoring force of the elastic members 275 and 276. Figure 7 The state shown. As the first arm 291 and the second arm 292 return to... Figure 7 In the state shown, the pusher 250 also retracts and returns to its original position through the interaction between the drive protrusion 253 and the first drive surface 291b and the second drive surface 292b. Figure 7 The state shown. As the pusher 250 moves backward, the operation unit 210 also moves backward and is at the position of the maximum backward movement.

[0168] Figure 10 This is a plan view showing the state of the handle head 22 before it is connected to the razor blade holder 10 according to an embodiment of the present disclosure. Figure 11 It is shown Figure 10 The top view of the handle head 22 in the shown state.

[0169] exist Figure 10 and Figure 11 In the middle, the razor blade holder 10 and the handle head 22 are in a state of imminent connection, therefore it is assumed that the plunger 240, the first arm 291 and the second arm 292 are in a reference position. Figure 7 The so-called "separation state".

[0170] Reference Figure 10 and Figure 11 With the handle head 22 separated from the razor blade holder 10, the first arm 291 and the second arm 292, which were exposed at the distal ends 241a of the plunger housings 230 and 270, are not exposed to the outside due to the plunger 240. Since the first arm 291 and the second arm 292 are not exposed to the outside, they are protected from external impacts, thereby extending the service life of the razor handle 20 and improving its aesthetic appearance.

[0171] Reference Figure 11 With the handle head 22 separated from the razor blade holder 10, the first arm 291 can support or contact the first side wall 243 of the plunger 240, and the second arm 292 can support or contact the second side wall 242 of the plunger 240. Alternatively, with the handle head 22 separated from the razor blade holder 10, the first arm 291 can be spaced apart from the first side wall 243 of the plunger 240, and the second arm 292 can be spaced apart from the second side wall 242 of the plunger 240.

[0172] In addition, refer to Figure 11With the handle head 22 separated from the razor blade holder 10, the distal ends 291d of the first arm 291 and 292d of the second arm 292 can be arranged in a first direction behind the distal end 241a of the plunger 240, so that the plunger 240 covers the first arm 291 and the second arm 292 from above. Alternatively, with the handle head 22 separated from the razor blade holder 10, the distal ends 291d of the first arm 291 and 292d of the second arm 292 can be in the same position as the distal end 241a of the plunger 240 in the first direction.

[0173] Furthermore, during the connection process between the handle head 22 and the razor blade holder 10, the contact between the distal end 241a of the plunger 240 and the blade housing 110 can occur before the contact between the distal end 291d of the first arm 291 and the distal end 292d of the second arm 292 and the connector 180. When the distal end 241a of the plunger 240 contacts the blade housing 110, it can naturally guide the alignment of the connection position between the razor blade holder 10 and the razor handle 20, and improve the user's recognition of the alignment direction of the razor blade holder 10 and the razor handle 20. Furthermore, referring to... Figure 11 With the razor blade holder 10 separated from the handle head 22, the outer distance D2 between the first end 291c and the second end 292c can be less than the longitudinal width D3 of the plunger 240, thereby allowing the plunger 240 to cover the first arm 291 and the second arm 292 from above. Alternatively, with the razor blade holder 10 separated from the handle head 22, the outer distance D2 between the first end 291c and the second end 292c can be substantially equal to the longitudinal width D3 of the plunger 240. Figure 10 and Figure 11 In the example shown, a plunger 240 is included as an example of the restoring force providing part 220, but this disclosure is not limited thereto. The restoring force providing part 220 may include a cantilever structure and / or a rubber member with elastic force, etc., to provide a restoring force to the razor blade holder 10.

[0174] Figure 12 This is a plan view showing the connection state between the handle head 22 and the razor blade holder 10 according to an embodiment of the present disclosure. Figure 13 It is shown Figure 12 The top view of the handle head 22 in the shown state. Figure 14 It shows from Figure 12 A perspective view of a portion of the shaver assembly 1, omitting the plunger 240, in the shown state.

[0175] Reference Figure 12When the handle head 22 is connected to the razor blade holder 10, the plunger 240 is located between a pair of guide posts 181. Furthermore, the first sidewall 243 and the second sidewall 242 of the plunger 240 respectively face the pair of opposing plunger ends 182. The first sidewall 243 and the second sidewall 242 can be arranged near the opposing plunger ends 182, or supported on the opposing plunger ends 182.

[0176] Reference Figures 12 to 14 The connection process between the razor blade holder 10 and the razor handle 20 will be described. The plunger 240 is supported by the connector 180 and retracts towards the interior of the plunger housings 230 and 270. As the plunger 240 retracts, the first arm 291 and the second arm 292 are exposed, with the first end 291c and the second end 292c contacting a pair of guide surfaces 183, respectively. As the razor blade holder 10 and the razor handle 20 move closer together, the first arm 291 and the second arm 292 rotate, gradually reducing the distance between the first end 291c and the second end 292c until they pass the pair of guide surfaces 183. After passing the pair of guide surfaces 183, the first arm 291 and the second arm 292 rotate under the restoring force provided by elastic members 275 and 276, allowing the first end 291c and the second end 292c to move away from each other, and as... Figure 14 As shown, the first end 291c and the second end 292c respectively enter the receiving space 184 between the guide surface 183 and the blade housing 110 (see...). Figure 4 This completes the connection between the joint 290 and the connector 180.

[0177] In the neutral state, when the first arm 291 and the second arm 292 are supported or in contact by the first sidewall 243 and the second sidewall 242 of the plunger 240, during the connection process between the joint 290 and the connector 180, as the plunger 240 retracts, the support or contact between the first arm 291 and the first sidewall 243, and the support or contact between the second arm 292 and the second sidewall 242, are released. The connection between the joint 290 and the connector 180 can be completed simultaneously with the release of the support or contact between the first arm 291 and the first sidewall 243, and the release of the support or contact between the second arm 292 and the second sidewall 242.

[0178] On the other hand, in the neutral state, when the first arm 291 and the second arm 292 are not supported or in contact by the first sidewall 243 and the second sidewall 242 of the plunger 240, and the first end 291c and the second end 292c are spaced apart from the first sidewall 243 and the second sidewall 242, depending on factors such as the relative position between the distal end 241a of the plunger 240 and the first end 291c and the second end 292c, the shape of the lower surface of the blade housing 110 in contact with the plunger 240, and the shape of the connector 180, the contact between the plunger 240 and the blade housing 110 during the connection process between the joint 290 and the connector 180 may occur earlier than the contact between the connector 180 and the first arm 291 and the second arm 292, or it may occur simultaneously with it.

[0179] Because the plunger 240 is provided with an elastic member 260 (see) between the plunger 240 and the pusher 250 Figure 5 The elastic support ensures that even when the razor blade holder 10 is pivoted while connected to the razor handle 20, the plunger 240 remains in contact with the razor blade holder 10 while moving forward or backward in the first direction, and provides a restoring force to the razor blade holder 10.

[0180] Reference Figure 13 With the handle head 22 connected to the razor blade holder 10, the distal end 291d of the first arm 291 and the distal end 292d of the second arm 292 can be located in front of the distal end 241a of the plunger 240 in the first direction.

[0181] Reference Figure 12 Even when the joint 290 is connected to the connector 180, the first arm 291 and the second arm 292 exposed outside the plunger housings 230 and 270 may be covered by the plunger 240 and not exposed to the outside. For example, when the razor blade holder 10 is connected to the razor handle 20, in the state where the razor blade holder 10 is supported by the plunger 240 and is not subjected to external force (rest position), the first arm 291 and the second arm 292 may not be exposed to the outside due to the plunger 240. However, in the state where the razor blade holder 10 and / or the razor handle 20 are subjected to external force causing the razor blade holder 10 to pivot from the rest state, the first arm 291 and the second arm 292 may be at least partially exposed to the outside without being covered by the plunger 240.

[0182] At least in the static position, in order to prevent the first arm 291 and the second arm 292 from being exposed to the outside by the plunger 240, the outer distance D5 between the first end 291c and the second end 292c can be less than or substantially equal to the longitudinal width D3 of the plunger 240 when the joint 290 is connected to the connector 180.

[0183] Furthermore, the inner distance D4 between the first end 291c and the second end 292c can be less than the longitudinal width D3 of the plunger 240, but this disclosure is not limited thereto. According to one embodiment, the inner distance D4 between the first end 291c and the second end 292c can be substantially equal to the longitudinal width D3 of the plunger 240. In this case, when the joint 290 is connected to the connector 180, the first arm 291 and the second arm 292 exposed outside the plunger housings 230 and 270 can be covered not only by the plunger 240, but also by a region of the connector 180 located on the longitudinal side of the plunger 240, thus not being exposed to the outside.

[0184] For example, when the joint 290 is connected to the connector 180, the ratio of the longitudinal width D3 of the plunger 240 to the outer distance D5 between the first end 291c and the second end 292c can be between 0.8 and 1.2.

[0185] On the other hand, the inner distance D4 and outer distance D5 between the first end 291c and the second end 292c when the joint 290 is connected to the connector 180 can be respectively equal to the inner distance D1 between the first end 291c and the second end 292c when the joint 290 is separated from the connector 180 (see...). Figure 11 The distances from the outer edge to the outer edge are basically the same as those from the outer edge to the outer edge, D2.

[0186] Alternatively, when the joint 290 is connected to the connector 180, the inner distance D4 and the outer distance D5 between the first end 291c and the second end 292c can be smaller than the inner distance D1 between the first end 291c and the second end 292c when the joint 290 is separated from the connector 180 (see...). Figure 11 ) and outer distance D2.

[0187] like Figure 12 and Figure 13 In the example shown, a plunger 240 is included as an example of the restoring force providing part 220, but this disclosure is not limited thereto. The restoring force providing part 220 may include a cantilever structure and / or a rubber member with elastic force, etc., to provide a restoring force to the razor blade holder 10.

[0188] Figure 15 This is a perspective view showing the plunger 2240 according to a second embodiment of the present disclosure. Figure 16 This is a bottom view showing the handle head 2022 of the plunger 2240 according to the second embodiment of this disclosure in a separated state from the razor blade holder 10. Figure 17This is a bottom view showing the handle head 2022 of the plunger 2240 according to the second embodiment of this disclosure connected to the razor blade holder 10. For ease of explanation, components similar to those in the foregoing embodiments will be given the same reference numerals, and repeated descriptions of the foregoing embodiments will be omitted.

[0189] Reference Figure 15 According to the second embodiment of this disclosure, the plunger 2240 is formed such that the thickness of the first sidewall 2243 and the second sidewall 2242 is greater than the thickness of the plunger 240 in the first embodiment. For example, the first sidewall 2243 and the second sidewall 2242 may be formed such that their thickness is greater than or substantially equal to the longitudinal width of the plunger opposing end 182 of the razor blade holder 10, or the sum of the widths of the plunger opposing end 182 and the guide surface 183. Alternatively, the distance between the first sidewall 2243 and the second sidewall 2242 may be formed such that it is less than or substantially equal to the distance between a pair of plunger opposing ends 182, or the distance between a pair of guide surfaces 183.

[0190] Reference Figure 16 When the handle head 2022 is separated from the razor blade holder 10, the first end 291c and the second end 292c of the coupling portion 290 are respectively supported on the first sidewall 2243 and the second sidewall 2242. In this case, the inner distance D6 between the first end 291c and the second end 292c is less than the inner distance D1 between the first end 291c and the second end 292c according to the foregoing embodiment (see...). Figure 12 ).

[0191] When the handle head 2022 according to the second embodiment of this disclosure is connected to the razor blade holder 10, the plunger 2240 is in Figure 16 Reverse in the state shown, thus as Figure 17 As shown, the first end 291c and the second end 292c are located in front of the plunger 2240 along the first direction and are connected to the connector 180.

[0192] Reference Figure 16 and Figure 17 During the connection process between the handle head 2022 and the razor blade holder 10 according to the second embodiment of the present disclosure, the first end 291c and the second end 292c separate from the plunger 2240, thereby opening the first end 291c and the second end 292c away from each other and connecting with the connector 180.

[0193] When the joint 290 is connected to the connector 180, the inner distance D8 and the outer distance D9 between the first end 291c and the second end 292c can be greater than or substantially equal to the inner distance D6 and the outer distance D7 between the first end 291c and the second end 292c when the joint 290 is separated from the connector 180.

[0194] When the joint 290 is connected to the connector 180, the inner distance D8 or the outer distance D9 between the first end 291c and the second end 292c can be less than or substantially equal to the longitudinal width of the plunger 2240.

[0195] When the inner distance D6 between the first end 291c and the second end 292c is less than or substantially equal to the distance between a pair of guide surfaces 183 or a pair of opposing plunger ends 182, the first end 291c and the second end 292c can minimize or avoid contact with the pair of guide surfaces 183 during the connection of the handle head 2022 to the razor blade holder 10. Therefore, the user can connect the razor blade holder 10 to the handle head 2022 with less force and faster speed.

[0196] According to the second embodiment of this disclosure, the handle head 2022 can also be configured such that, in the state where the razor blade holder 10 is separated from the handle head 22, the first arm 291 and the second arm 292 protruding outwards from the plunger housings 230 and 270 are covered by the plunger 2240 and not exposed to the outside; and in the state where the razor blade holder 10 is connected to the handle head 22, the first arm 291 and the second arm 292 protruding outwards from the plunger housings 230 and 270 are covered by the plunger 2240 or by the plunger 2240 and the connector 180 and not exposed to the outside.

[0197] For example, the restoring force providing part may include plunger 240 or 2240, but this disclosure is not limited thereto. Alternatively, the restoring force providing part 220 may include a cantilever structure and / or a rubber member with elastic force, etc., to provide restoring force to the razor blade holder 10.

[0198] Figure 18 This is a bottom view of a modified example of a razor blade holder 2010 according to an embodiment of the present disclosure. For ease of explanation, components similar to those in the foregoing embodiments will be given the same reference numerals, and repeated descriptions of the foregoing embodiments will be omitted.

[0199] Reference Figure 18 The razor blade holder 2010 may include a connector 2180 having a pair of guide posts 2181 and a pair of plunger opposing ends 2182.

[0200] When the razor blade holder 2010 is connected to the handle head 22 or 2022, the contact between the first end 291c and the second end 292c and the pair of guide surfaces 183 is omitted during the connection process between the handle head 22 or 2022 and the razor blade holder 2010. Therefore, the user can connect the razor blade holder 2010 to the handle head 22 or 2022 with less force and faster speed.

[0201] Figure 19This is a diagram showing a portion of the handle head according to a third embodiment of the present disclosure. Figure 20 This is a schematic cross-sectional view showing the handle head according to a third embodiment of the present disclosure. Figure 20 It is along Figure 19 A schematic cross-sectional view taken along line AA'. For ease of explanation, components similar to those in the foregoing embodiments will be given the same reference numerals, and repeated descriptions of the foregoing embodiments will be omitted.

[0202] Reference Figure 19 and Figure 20 According to the third embodiment of the present disclosure, the handle head 3022 may further include a protrusion 3278 compared to the handle head 22 of the first embodiment.

[0203] The protrusion 3278 may be formed to protrude from a surface of the lower housing 3270 of the plunger to be disposed between the first arm 291 and the second arm 292.

[0204] In a neutral state, the protrusion 3278 can be adjacent to and face the first arm 291 and the second arm 292, or it can support the first arm 291 and the second arm 292. When the protrusion 3278 supports the first arm 291 and the second arm 292, the first arm 291 and the second arm 292 no longer spread apart from each other in the neutral state, thereby keeping the positions of the first arm 291 and the second arm 292 stable in the neutral state.

[0205] Reference Figure 19 and Figure 20 According to the third embodiment of this disclosure, the handle head 3022 may further include a pair of plunger guide sidewalls 3279.

[0206] Each plunger guide sidewall 3279 may be formed to protrude from a surface of the plunger lower housing 3270 and be spaced apart from the outer sidewall of the plunger lower housing 3270 toward the inward side.

[0207] The plunger guide sidewall 3279 can be formed parallel to the direction of movement of the plunger 240 and together with the outer sidewall of the plunger lower housing 3270, guides the forward / reverse movement of the plunger 240.

[0208] Furthermore, the plunger guide sidewall 3279 can support the first arm 291 and the second arm 292 in a neutral state. In this case, the first arm 291 and the second arm 292 no longer spread apart from each other in the neutral state, thereby keeping the positions of the first arm 291 and the second arm 292 stable in the neutral state.

[0209] Reference Figure 20 The upper housing 230 of the plunger slidably accommodates at least a portion of the upper cover 241 of the plunger 240.

[0210] The first sidewall 243 and the second sidewall 242 of the plunger 240 are slidably accommodated in the space between the outer sidewall of the lower housing 3270 of the plunger and the plunger guide sidewall 3279.

[0211] The plunger guide sidewall 3279, the first arm 291, the second arm 292, and the protrusion 3278 can partially support the lower part of the upper cover 241 of the plunger 240.

[0212] The upper part of the upper cover 241 is supported by the upper plunger housing 230, while the lower part of the upper cover 241 is supported by the plunger guide sidewall 3279, the first arm 291, the second arm 292, and the protrusion 3278. In addition, the first sidewall 243 and the second sidewall 242 are supported laterally by the outer sidewall of the plunger guide sidewall 3279 and the lower plunger housing 3270, so that the plunger 240 can remain stable during forward / reverse movement and will not wobble in the up, down, left, and right directions.

[0213] Therefore, the plunger 240 can stably and elastically support the razor blade holder, thereby providing a stable shaving effect and improving the shaving experience.

[0214] Figure 21 This is a diagram showing a portion of the handle head according to a fourth embodiment of the present disclosure. Figure 22 This is a bottom view showing the plunger according to the fourth embodiment of the present disclosure. Figure 23 This is a diagram showing the connection state between the lower housing of the plunger and the plunger according to the fourth embodiment of this disclosure. Figure 24 This is a schematic cross-sectional view showing the handle head according to the fourth embodiment of the present disclosure. Figure 24 It is along Figure 21 A schematic cross-sectional view taken along line BB'. For ease of explanation, components similar to those in the foregoing embodiments will be given the same reference numerals, and repeated descriptions of the foregoing embodiments will be omitted.

[0215] Reference Figure 21 According to the fourth embodiment of the present disclosure, the handle head 4022 may further include a protrusion 4278 compared to the handle head 22 of the first embodiment.

[0216] Similar to the handle head 3022 in the third embodiment described above, the protrusion 4278 can be formed to protrude from a surface of the lower plunger housing 4270 and be disposed between the first arm 291 and the second arm 292. However, according to this embodiment, the protrusion 4278 can be formed as a C-shape with a forward opening through which the plunger 4240 can move forward / backward. The shapes of the protrusions 3278 and 4278 in the third and fourth embodiments can be varied.

[0217] The function of protrusion 4278 is similar to that of protrusion 3278 in the third embodiment described above, so its repeated description is omitted.

[0218] The handle head 4022 according to the fourth embodiment of this disclosure may further include a pair of plunger guide sidewalls 4279. The plunger guide sidewalls 4279 are similar to the plunger guide sidewalls 3279 of the third embodiment described above, and therefore their description is omitted.

[0219] The handle head 4022 according to the fourth embodiment of this disclosure may further include a pair of limiting members 4280.

[0220] Each limiting member 4280 may be configured to protrude from the outer side wall of the lower piston housing 4270 toward the piston guide side wall 4279. The limiting member 4280 may engage with the protrusions 4242a and 4243a of the piston 4240 to form the forward limit point of the piston 4240.

[0221] Reference Figure 22 According to the fourth embodiment of the present disclosure, the plunger 4240 may include a top cover 4241, a first sidewall 4243 extending downward from one side of the top cover 4241, and a second sidewall 4242 extending downward from the other side of the top cover 4241.

[0222] A downwardly protruding cover support 4241a may be formed on the lower surface of the upper cover 4241. The cover support 4241a may be configured to be supported by a protrusion 4278 when the plunger 4240 moves forward / backward. For example, the cover support 4241a may be formed to protrude from the lower surface of the upper cover 4241 and be parallel to the forward / backward direction of the plunger 4240.

[0223] Furthermore, a transverse support portion 4241b may be formed on the lower surface of the cover 4241 to connect the first sidewall 4243 and the second sidewall 4242 across the cover support portion 4241a.

[0224] The cover support portion 4241a and the transverse support portion 4241b formed on the lower surface of the cover 4241 can prevent the cover 4241 from being damaged or deformed due to the external force applied to the cover 4241 of the plunger 4240.

[0225] The first sidewall 4243 may include an outwardly protruding protrusion 4243a, and the second sidewall 4242 may include an outwardly protruding protrusion 4242a.

[0226] Reference Figure 23 The protrusions 4242a and 4243a can be located adjacent to the outer side wall of the lower housing 4270 of the plunger. When the plunger 4240 advances a certain distance or more, the plunger 4240, supported by the limiting member 4280, is blocked and cannot continue to advance, and is also prevented from disengaging. The point where the protrusions 4242a and 4243a contact the limiting member 4280 can be the limit point of the plunger 4240's advance.

[0227] Figure 22 and Figure 23 An example is shown where protrusions 4242a and 4243a protrude outward from the first sidewall 4243 and the second sidewall 4242, respectively. However, as an alternative embodiment, protrusions 4242a and 4243a may also be configured to protrude inward from the first sidewall 4243 and the second sidewall 4242, respectively. In this case, the limiting member 4280 may be configured to protrude from the plunger guide sidewall 4279 toward the outer sidewall of the plunger lower housing 4270.

[0228] Reference Figure 24 The upper housing 230 of the plunger slidably accommodates at least a portion of the upper cover 4241 of the plunger 4240.

[0229] The cover support 4241a and the transverse support 4241b can be located above the first arm 291, the second arm 292 and the protrusion 4278.

[0230] The first sidewall 4243 and the second sidewall 4242 of the plunger 4240 are slidably accommodated in the space between the plunger guide sidewall 4279 and the outer sidewall of the plunger lower housing 4270.

[0231] The plunger guide sidewall 4279, the first arm 291, the second arm 292, and the protrusion 4278 can partially support the lower part of the cover support 4241a and the lateral support 4241b.

[0232] The upper part of the upper cover 4241 is supported by the upper piston housing 230, while the lower part of the upper cover 4241 (cover support 4241a and lateral support 4241b) is supported by the piston guide sidewall 4279, the first arm 291, the second arm 292 and the protrusion 4278. In addition, the first sidewall 4243 and the second sidewall 4242 are supported laterally by the piston guide sidewall 4279 and the outer sidewall of the lower piston housing 4270, so that the piston 4240 can reciprocate stably when moving forward / backward without wobbling in the up, down and left and right directions.

[0233] Therefore, the plunger 4240 can stably and elastically support the razor blade holder, thereby providing a stable shaving effect and improving the shaving experience.

[0234] Figure 25 This is a perspective view showing the joint according to the fifth embodiment of the present disclosure. Figure 26 This is a side view showing the joint according to the fifth embodiment of the present disclosure. Figure 27 This is a front view showing the joint according to the fifth embodiment of the present disclosure.

[0235] Reference Figures 25 to 27According to the fifth embodiment of this disclosure, the joint 2290 includes a first arm 2291 and a second arm 2292.

[0236] The first arm 2291 may include a first drive arm 2291a, a first drive surface 2291b, and a first end 2291c. The first drive arm 2291a, the first drive surface 2291b, and the first end 2291c are similar to the first drive arm 291a, the first drive surface 291b, and the first end 291c of the aforementioned first arm 291, so their repeated description is omitted.

[0237] Reference Figures 25 to 27 According to one embodiment, the first arm 2291 includes a first inclined surface 2291d formed on its end upper surface. (See also...) Figure 26 The first inclined surface 2291d may be formed to slope downward toward the end of the first arm 2291. The first inclined surface 2291d may be formed to extend to the end of the first arm 2291. The first inclined surface 2291d may have an inclination angle θ1 of 14 degrees to 30 degrees, preferably 15 degrees to 20 degrees.

[0238] When the inclination angle θ1 of the first inclined surface 2291d is less than 14 degrees, the end of the first arm 2291 is too thin, making it impossible to ensure sufficient rigidity and durability during repeated friction or collision with the connector 180. Furthermore, when the inclination angle θ1 of the first inclined surface 2291d is greater than 30 degrees, the space occupied by the first end 2291c within the receiving space 184 increases (see...). Figure 28 This could potentially reduce the maximum pivot angle of the razor blade holder 10.

[0239] Reference Figure 25 At least a portion of the upper surface of the first end 2291c, which is formed to protrude outward in the direction of the outer side (negative X-axis direction) of the first arm 2291, may include a first inclined surface 2291d.

[0240] Reference Figure 27The first end portion 2291c includes a first region 2291e and a second region 2291f connecting the upper and lower surfaces. The second region 2291f may extend outward from the first region 2291e in the longitudinal direction (negative X direction). The second region 2291f may bend from the first region 2291e and extend outward and rearward in the longitudinal direction. The first region 2291e may form the front surface of the first end portion 2291c, and the second region 2291f may form the outer surface of the first end portion 2291c. The second region 2291f may be formed with a gradually increasing height in the longitudinal direction (negative X direction). In other words, the upper end of the second region 2291f may be inclined upward in the longitudinal direction (negative X direction) relative to the upper end of the first region 2291e. The shape of the second region 2291f can improve the recognizability of the first end portion 2291c when the user observes the front of the first end portion 2291c and make the connection / separation of the first end portion 2291c with the connector 180 more reliable.

[0241] Reference Figures 25 to 27 The second arm 2292 may include a second drive arm 2292a, a second drive surface 2292b, and a second end 2292c. The second drive arm 2292a, the second drive surface 2292b, and the second end 2292c are similar to the second drive arm 292a, the second drive surface 292b, and the second end 292c of the aforementioned second arm 292, so their repeated description is omitted.

[0242] Reference Figures 25 to 27 According to one embodiment, the second arm 2292 includes a second inclined surface 2292d formed on its end upper surface. The second inclined surface 2292d may be formed to slope downward toward the end of the second arm 2292. The second inclined surface 2292d may be formed to extend to the end of the second arm 2292. The second inclined surface 2292d may have an inclination angle θ1 of 14 degrees to 30 degrees, preferably 15 degrees to 20 degrees.

[0243] When the inclination angle θ1 of the second inclined surface 2292d is less than 14 degrees, the end of the second arm 2292 is too thin, making it impossible to ensure sufficient rigidity and durability during repeated friction or collision with the connector 180. Furthermore, when the inclination angle θ1 of the second inclined surface 2292d is greater than 30 degrees, the space occupied by the second end 2292c within the receiving space 184 increases (see...). Figure 28 This could potentially reduce the maximum pivot angle of the razor blade holder 10.

[0244] Reference Figure 25 At least a portion of the upper surface of the second end 2292c, which protrudes outward in the direction of the second arm 2292 (positive X-axis direction), may include a second inclined surface 2292d.

[0245] Reference Figure 27 The second end portion 2292c includes a first region 2292e and a second region 2292f connecting the upper and lower surfaces. The second region 2292f can extend outward from the first region 2292e in the longitudinal direction (positive X direction). The second region 2292f can be bent from the first region 2292e and extend outward and rearward in the longitudinal direction. The first region 2292e can form the front surface of the second end portion 2292c, and the second region 2292f can form the outer surface of the second end portion 2292c. The second region 2292f can be formed with a gradually increasing height in the longitudinal direction (positive X direction). In other words, the upper end of the second region 2292f can be formed to be inclined upward in the longitudinal direction (positive X direction) relative to the upper end of the first region 2292e. The shape of the second region 2292f can improve the recognizability of the second end portion 2292c when the user observes the front of the second end portion 2292c, and make the connection / separation of the second end portion 2292c with the connector 180 more reliable.

[0246] Figure 28 This diagram illustrates the connection state between the joint and the razor blade holder according to the fifth embodiment of this disclosure in a static state. The static state refers to the state where the razor blade holder 10 is connected to the razor handle 20 without any external force being applied. Furthermore, Figure 29 This diagram illustrates the connection state between the joint and the razor blade holder according to the fifth embodiment of this disclosure in the maximum pivot state. Figure 30 This is a diagram showing a razor assembly according to an embodiment of the present disclosure placed on the ground.

[0247] Reference Figure 28 According to the fifth embodiment of this disclosure, the connecting portion 2290 includes a first end portion 2291c and a second end portion 2292c that are inserted into the receiving space 184 of the razor blade holder 10 to achieve the connection between the razor handle 20 and the razor blade holder 10.

[0248] The first arm 2291 has a first inclined surface 2291d that slopes downward toward the first end 2291c, and the second arm 2292 has a second inclined surface 2292d that slopes downward toward the second end 2292c. Therefore, during the connection of the joint 2290 and the connector 180, the first end 2291c and the second end 2292c can easily enter the receiving space 184. This allows the user to connect the razor blade holder 10 to the razor handle 20 with less force.

[0249] In order to achieve a smooth cam action between the first end 2291c and the second end 2292c and a pair of guide surfaces 183 during the connection process between the joint 2290 and the connector 180, the second region 2291f of the first end 2291c may have a curved surface that protrudes outward in the longitudinal direction (negative X direction), and the second region 2292f of the second end 2292c may have a curved surface that protrudes outward in the longitudinal direction (positive X direction).

[0250] In addition, refer to Figure 28 and Figure 29 The ends of the first end 2291c and the second end 2292c are thinned due to the first inclined surface 2291d and the second inclined surface 2292d, so the first end 2291c and the second end 2292c can enter the receiving space 184 more deeply, thereby achieving a more stable connection between the joint 2290 and the connector 180. In addition, the ends of the first end 2291c and the second end 2292c actually serve as the pivot axis of the razor blade holder 10, so the actual pivoting movement of the razor blade holder 10 can be realized very close to the design intent.

[0251] In addition, refer to Figure 29 In its maximum pivot position, the first inclined surface 2291d and the second inclined surface 2292d of the razor blade holder 10 can contact the inner wall of the receiving space 184. In other words, the first inclined surface 2291d and the second inclined surface 2292d are formed on the first arm 2291 and the second arm 2292, respectively, so the maximum pivot angle of the razor blade holder 10 can be increased based on the tilt angle θ1 of each inclined surface 2291d and 2292d. As the maximum pivot angle of the razor blade holder 10 increases, even when shaving body parts with greater curvature, the user can complete the shaving with minimal wrist movement, thereby improving shaving convenience.

[0252] Since the tilt angle θ1 of the first tilting surface 2291d and the second tilting surface 2292d is related to the maximum pivot angle of the razor blade holder 10, the maximum pivot angle of the razor blade holder 10 can be controlled by adjusting the tilt angle θ1 of the first tilting surface 2291d and the second tilting surface 2292d, as well as the shape of the receiving space 184. For example, when the tilt angle θ1 of the first tilting surface 2291d and the second tilting surface 2292d decreases, the first end 2291c and the second end 2292c become thinner, and the space occupied by the first end 2291c and the second end 2292c in the receiving space 184 decreases, thereby increasing the maximum pivot angle of the razor blade holder 10. Conversely, when the tilt angle θ1 of the first tilt surface 2291d and the second tilt surface 2292d increases, the first end 2291c and the second end 2292c become thicker, and the space occupied by the first end 2291c and the second end 2292c in the receiving space 184 increases, thereby reducing the maximum pivot angle of the razor blade holder 10.

[0253] Furthermore, the connecting portion 2290 according to this embodiment includes a first inclined surface 2291d and a second inclined surface 2292d formed on the upper surfaces of the arms 2291 and 2292, respectively. Therefore, compared to the case where inclined surfaces are formed on the lower surfaces of each arm, the razor blade holder 10 can have such... Figure 30 The smaller stationary angle θ2 is shown.

[0254] The rest angle θ2 can be the angle between the upper surface of the razor blade holder 10 and the ground F when the razor assembly is placed on the ground F in a stationary state. Alternatively, the rest angle θ2 can be the angle between the shaving plane P of the razor blade holder 10 and the ground F when the razor assembly is placed on the ground F in a stationary state. The shaving plane P can be the guard strip 140 of the razor blade holder 10 (see...). Figure 2 ) and cover 150 (see Figure 2 The plane in contact with each other. Alternatively, the rest angle θ2 can be the angle between an imaginary line F connecting the points where the razor blade holder 10 and the razor handle contact the plane when the razor assembly is in a stationary state and placed on any plane, and the upper surface of the razor blade holder 10 or the shaving plane P. The rest angle θ2 can be from 18 degrees to 24 degrees, preferably from 20 degrees to 23 degrees.

[0255] As the rest angle θ2 decreases, the plunger 240 (see [reference]) is affected by the pivoting of the razor blade holder 10 during shaving. Figure 5 The backward distance of the elastic member 260 increases, and therefore the elastic member 260 (see Figure 5The increased compression distance of the plunger 240 results in an increased restoring force on the razor blade holder 10. This increased restoring force improves the close contact between the razor blade holder 10 and the skin, thereby enhancing the shaving performance of the razor blade holder 10.

[0256] Furthermore, as the rest angle θ2 decreases, the pivot range of the razor blade holder 10 increases, thereby improving the user's shaving convenience.

[0257] Furthermore, the smaller rest angle θ2 reduces the angle between the skin surface and the razor handle along its length during shaving, allowing the razor blade holder 10 to maintain close contact with the skin surface without excessive wrist bending. This results in a more comfortable shaving experience while holding the razor handle. This improves shaving convenience when shaving areas where significant pivoting of the razor blade holder 10 is not required.

[0258] Furthermore, the second region 2291f of the first end 2291c and the second region 2292f of the second end 2292c are inserted into the receiving space 184 to substantially maintain the connection between the razor blade holder 10 and the razor handle 20. During the pivoting of the razor blade holder 10, they rub and collide with the connector 180 within the receiving space 184. Therefore, the second regions 2291f and 2292f need to possess rigidity and durability. According to this embodiment, the joint 2290 is formed such that the second region 2291f of the first end 2291c and the second region 2292f of the second end 2292c gradually increase in height longitudinally outward, thereby ensuring the rigidity and durability of the second regions 2291f and 2292f during repeated friction and collision with the connector 180.

[0259] Figure 31 This is a side view showing the shaver handle in a separated state, including the joint portion according to the fifth embodiment of this disclosure. Figure 32 This is a top view showing the shaver handle in a separated state, including the joint portion according to the fifth embodiment of this disclosure.

[0260] Reference Figure 31 When the razor handle is separated from the razor blade holder, the ends of the first arm 2291 and the second arm 2292 can be exposed to the outside through their lateral portions.

[0261] The first arm 2291 and the second arm 2292 are located below the plunger 240. Since the first inclined surface 2291d and the second inclined surface 2292d are formed on the upper surfaces of the first arm 2291 and the second arm 2292, respectively, the plunger 240 and each arm 2291 and 2292 are laterally spaced from each other. Therefore, the user can easily identify the arms 2291 and 2292.

[0262] Reference Figure 32 With the razor handle separated from the razor blade holder, when viewed from above, the ends 2291c of the first arm 2291 and 2292c of the second arm 2292 are at least partially exposed to the outside. In other words, in the separated state, the ends 2291c of the first arm 2291 and 2292c of the second arm 2292 are at least partially located in front of or to the outside of the plunger 240, so that the user can easily identify the presence of arms 2291 and 2292.

[0263] Therefore, as Figure 31 and Figure 32 As shown, in the separated state, the end 2291c of the first arm 2291 and the end 2292c of the second arm 2292 are at least partially visible from at least two directions, so that the user can easily identify the presence, position, etc. of the arms 2291 and 2292 and accurately connect the razor handle to the razor blade holder.

[0264] Figure 33 This is a diagram showing the neutral state of the joint according to the fifth embodiment of this disclosure.

[0265] Reference Figure 33 In a neutral state, the second region 2291f of arm 2291 and the second region 2292f of arm 2292 can be formed to extend outward and backward from the first regions 2291e and 2292e, so as to form an angle α of about 28 degrees to 45 degrees, preferably about 23 degrees to 40 degrees, relative to the central axis in the length direction.

[0266] The shapes of the second regions 2291f and 2292f described above make it possible for the joint 2290 to connect with the connector 180 (see...) Figure 3 During the connection process, the second regions 2291f and 2292f can be smoothly connected along a pair of guide surfaces 183 (see...). Figure 3 Slide and enter the receiving space 184 (see Figure 4 ).

[0267] Figure 34 This is a diagram illustrating the connection process state according to the fifth embodiment of this disclosure.

[0268] Reference Figure 34 During the process of connecting each arm 2291 and 2292 to the connector 180 of the razor blade holder 10, the maximum drive angle β of each arm 2291 and 2292 relative to the neutral state can be approximately 6 to 11 degrees, preferably 7 to 9 degrees.

[0269] When the maximum drive angle β of each arm 2291 and 2292 exceeds the above-mentioned range, the razor blade holder 10 is very likely to detach during shaving.

[0270] Reference Figure 33 and Figure 34 The razor handle 20 may further include a function providing portion 278 disposed between the first arm 2291 and the second arm 2292.

[0271] The function providing part 278 may be disposed within the plunger housing 270 and exposed at least partially through the front of the plunger housing 270. The function providing part 278 may be located below the plunger 240, i.e., between the plunger 240 and the lower plunger housing 270, so as not to obstruct the movement of the plunger 240. The function providing part 278 may be located within the upper plunger housing 230 (see...). Figure 5 ) and / or the lower housing 270 of the plunger is supported.

[0272] The function providing unit 278 can provide functions useful for shaving.

[0273] For example, the function providing unit 278 may include heat transfer elements, electrical components, and electronic components to provide heat to the skin during shaving. To this end, the function providing unit 278 may include a heat source, a light source, etc., and may include circuits, wires, etc., as electrical / electronic components for driving the heat source and / or the light source.

[0274] For example, the function providing unit 278 can provide vibration and / or reciprocating driving force (LM, Linear Motion) to the razor blade holder 10. To this end, the function providing unit 278 may include electrical / electronic components, mechanical components, such as motors and eccentric cams.

[0275] For example, the function providing unit 278 can spray fluid (e.g., lubricant such as shaving foam) onto the skin during shaving, or spray fluid after shaving to clean the razor blade holder 10. To this end, the function providing unit 278 may include a fluid flow channel for supplying fluid, electrical / electronic components for spraying fluid, etc.

[0276] For example, the function providing unit 278 can detect the pivoting of the razor blade holder 10. To this end, the function providing unit 278 may include a sensor (e.g., an optical sensor, a laser sensor, a magnetic sensor, etc.) for detecting the pivoting of the razor blade holder 10, electrical / electronic components for driving the sensor, etc.

[0277] According to one embodiment of this disclosure, the connecting portion 290 or 2290 is connected to the connector 180 using two spaced-apart arms 291, 292 or 2291, 2292, so that the function providing portion 278 can be disposed in the space between the two arms 291, 292 or 2291, 2292 to provide a variety of functions useful for shaving. The function providing portion 278 can be applied to all embodiments described above or below.

[0278] Figure 35 This is a perspective view showing the joint according to the sixth embodiment of the present disclosure.

[0279] Reference Figure 35 Compared to the joint portion 2290 according to the fifth embodiment, the joint portion 3290 according to the sixth embodiment of this disclosure further includes a first anti-detachment protrusion 3291g formed to protrude upward from the upper surface of the first arm 3291, and a second anti-detachment protrusion 3292g formed to protrude upward from the upper surface of the second arm 3292.

[0280] The first anti-slip protrusion 3291g can be located behind the first inclined surface 2291d, and the second anti-slip protrusion 3292g can be located behind the second inclined surface 2292d.

[0281] Figure 36 This is a bottom view showing the plunger according to the sixth embodiment of the present disclosure.

[0282] Reference Figure 36 According to the sixth embodiment of the present disclosure, the plunger 5240 may include a top cover 5241, a first sidewall 5243 extending downward from one side of the top cover 5241, and a second sidewall 5242 extending downward from the other side of the top cover 5241.

[0283] On the lower surface of the upper cover 5241, a cover support portion 5241a and a transverse support portion 5241b may be formed.

[0284] The first sidewall 5243 may include an outwardly protruding protrusion 5243a, and the second sidewall 5242 may include an outwardly protruding protrusion 5242a.

[0285] The structure of the plunger 5240 according to the sixth embodiment is similar to that of the plunger 4240 according to the fourth embodiment, so its repeated description will be omitted.

[0286] Reference Figure 36 Compared to the plunger 4240 of the fourth embodiment, the plunger 5240 of the sixth embodiment further includes a pair of protruding support portions 5241c disposed on its lower surface. The protruding support portions 5241c may be formed on the lower surface and adjacent to the distal end of the upper cover 5241.

[0287] A pair of protruding support portions 5241c are respectively spaced apart from the first sidewall 5243 and the second sidewall 5242, thereby forming a first protrusion receiving space 5246 between the support portions and the sidewalls 5243 and 5242. The first protrusion receiving space 5246 is the space that accommodates the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g when the plunger 5240 retracts a certain distance or more.

[0288] The protruding support portion 5241c is a member that blocks the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g housed in the first protrusion receiving space 5246, and can be formed to protrude or be recessed from the lower surface of the cover 5241.

[0289] A second protruding receiving space 5247, located behind the first protruding receiving space 5246, can be formed in the space between each sidewall 5243 and 5242 and the cover support 5241a. Details of the second protruding receiving space 5247 will be described later.

[0290] Figure 37 and Figure 38 This diagram illustrates whether the plunger according to the sixth embodiment of the present disclosure blocks the connection portion according to the sixth embodiment of the present disclosure when it is in the forward state. Figure 39 This is a diagram illustrating whether the plunger according to the sixth embodiment of the present disclosure blocks the joint according to the sixth embodiment of the present disclosure in the retracted state.

[0291] Reference Figure 36 and Figure 37 When the plunger 5240 is in the forward position, the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g are respectively located in the second protrusion receiving space 5247.

[0292] Figure 37 The diagram shows the state when the razor blade holder 10 and the razor handle 20 are separated, or when the razor blade holder 10 connected to the razor handle 20 is in a stationary state.

[0293] Figure 38 This illustrates that when the plunger 5240 is in the forward position, the first anti-disengagement protrusion 3291g rotates to the maximum drive angle β based on the first arm 3291 (see...). Figure 34 The trajectory A formed by the second anti-detachment protrusion 3292g and the trajectory B formed by the second arm 3292 rotating to the maximum drive angle β.

[0294] When the plunger 5240 is in the forward position, the trajectory A of the first anti-detachment protrusion 3291g and the trajectory B of the second anti-detachment protrusion 3292g exist within the second protrusion receiving space 5247.

[0295] When the plunger 5240 is in the forward position, the first arm 3291 and the second arm 3292 can rotate freely to the maximum drive angle β, thereby enabling the coupling 3290 to be connected / disconnected from the connector 180.

[0296] Reference Figure 36 and Figure 39When the plunger 5240 is in the retracted state, the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g are respectively located in the first protrusion receiving space 5246.

[0297] Figure 39 The state can be the state in which the razor blade holder 10 connected to the razor handle 20 is pivoted at the maximum pivot angle.

[0298] Reference Figure 39 When the plunger 5240 is in the retracted state, the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g are respectively located within the first protrusion receiving space 5246. In this case, the protrusion support portion 5241c is located adjacent to the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g, respectively, and is located on the trajectory of the first anti-detachment protrusion 3291g based on the rotation of the first arm 3291 and the trajectory of the second anti-detachment protrusion 3292g based on the rotation of the second arm 3292.

[0299] Therefore, due to the obstruction between the first anti-detachment protrusion 3291g and the protrusion support portion 5241c, the first arm 3291 cannot rotate to the maximum drive angle β; and due to the obstruction between the second anti-detachment protrusion 3292g and the protrusion support portion 5241c, the second arm 3292 cannot rotate to the maximum drive angle β.

[0300] When the razor blade holder 10 is pivoted to its maximum pivot angle while stationary, the first arm 3291 and the second arm 3292 rotate so that their ends 2291c and 2292c are adjacent to each other.

[0301] Therefore, when the razor blade holder 10 is already pivoted, if one of the ends 2291c and 2292c rotates beyond the maximum drive angle β due to an external impact or additional external force, at least one of the ends 2291c and 2292c may detach from the receiving space 184.

[0302] However, according to this embodiment, when the plunger 5240 retracts to a certain distance or more, and the first anti-detachment protrusion 3291g and the second anti-detachment protrusion 3292g are accommodated in the first protrusion accommodating space 5246, the additional rotation of each arm 3291 and 3292 is prevented by the protrusion support 5241c, thereby preventing at least one of the ends 2291c and 2292c from detaching from the accommodating space 184, thereby preventing the razor blade holder 10 from accidentally detaching from the razor handle 20 during shaving.

[0303] Those skilled in the art will understand that this disclosure may be implemented in other specific forms without altering the technical spirit or essential characteristics of this disclosure. Therefore, the above embodiments should be considered illustrative rather than restrictive in all respects. The scope of this disclosure is defined by the appended claims, not by the detailed description above, and all changes or modifications made in accordance with the meaning and scope of the appended claims and their equivalents should be construed as falling within the scope of this disclosure.

Claims

1. A razor assembly comprising a razor blade holder and a razor handle, the razor blade holder longitudinally accommodating at least one blade and having a connector on one side, the razor handle being detachably connected to the razor blade holder, characterized in that, The razor assembly includes: The joint portion that is detachably connected to the connector; At least one blade with a cutting edge is formed; A blade housing that accommodates at least one blade in the longitudinal direction; A connector disposed on one side of the blade housing; A razor handle connected to the blade housing to enable the blade housing to pivot, the razor handle including a coupling for connection with the connector; A restoring force providing portion for providing a restoring force to the pivoting of the blade housing, the restoring force providing portion covering at least a portion of the joint from above the joint.

2. The shaver assembly as claimed in claim 1, characterized in that, The joint includes a first arm and a second arm that are spaced apart from each other in the longitudinal direction. The first arm includes a first end portion. The second arm includes a second end. When the joint is connected to the connector, the inner distance between the first end and the second end is equal to or less than the longitudinal width of the restoring force providing part.

3. The razor assembly as claimed in claim 2, characterized in that, When the joint is connected to the connector, the ratio of the longitudinal width of the restoring force providing part to the outer distance between the first end and the second end is 0.8 to 1.

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4. The razor assembly as claimed in claim 1, characterized in that, The restoring force providing unit includes: The upper cover covering the upper part of the joint; and Side walls extending downward from both sides of the top cover.

5. The razor assembly as claimed in claim 4, characterized in that, When the joint is separated from the connector, the joint is supported by the sidewall or in contact with the sidewall.

6. The razor assembly as claimed in claim 5, characterized in that, When the joint is connected to the connector, the support or contact between the joint and the sidewall is released.

7. The razor assembly as claimed in claim 4, characterized in that, When the joint is separated from the connector, the joint is spaced apart from the sidewall.

8. The razor assembly as claimed in claim 1, characterized in that, The restoring force providing part includes a slidably movable plunger and a plunger housing that accommodates at least a portion of the plunger.

9. The shaver assembly as claimed in claim 1, characterized in that, When the joint is connected to the connector, the distal end of the joint is positioned further forward than the distal end of the restoring force providing part in a first direction.

10. The razor assembly as claimed in claim 1, characterized in that, When the joint is separated from the connector, the distal end of the joint is located in a first direction at a position further back or at the same position as the distal end of the restoring force providing part.

11. The razor assembly as claimed in claim 1, characterized in that, When the joint is connected to the connector, the joint is not exposed to the outside by the restoring force providing part.

12. The razor assembly as claimed in claim 1, characterized in that, The joint includes a first arm and a second arm that are spaced apart from each other in the longitudinal direction. The first arm includes a first end portion. The second arm includes a second end. When the joint is connected to the connector, the inner distance between the first end and the second end is greater than the inner distance when the joint is separated from the connector.

13. The razor assembly as claimed in claim 1, characterized in that, The joint includes a first arm and a second arm that are spaced apart from each other in the longitudinal direction. The first arm includes a first end portion. The second arm includes a second end. When the joint is connected to the connector, the inner distance between the first end and the second end is less than or equal to the inner distance when the joint is separated from the connector.

14. The razor assembly as claimed in claim 1, characterized in that, The blade housing is pivotable relative to the razor handle, centered on the connection point between the joint and the connector.

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