WO2018212635A1

WO2018212635A1 - Razor cartridge having slots

Info

Publication number: WO2018212635A1
Application number: PCT/KR2018/005784
Authority: WO
Inventors: 고우경; 김보라; 손성희
Original assignee: 주식회사 도루코
Priority date: 2017-05-19
Filing date: 2018-05-21
Publication date: 2018-11-22
Also published as: KR101887038B1

Abstract

The present invention relates to a razor cartridge comprising: at least one blade; and a housing in which the at least one blade is received. The housing includes: a first skin contact member located at the foremost portion of the housing; a second skin contact member located behind the first skin contact member and in front of the at least one blade; a third skin contact member located behind the at least one blade; a first slot defined as an area between the first skin contact member and the second skin contact member; and a second slot defined as an area between the foremost blade positioned at the forefront among the at least one blade and the second skin contact member, wherein the first slot and the second slot are formed to vertically penetrate through the housing and extend in the longer direction perpendicular to the shaving direction. As the length of the shorter direction of the first slot in parallel with the shaving direction is longer than the length of the shorter direction of the second slot, it is easy to discharge an excessively applied shaving aid material and shaving residue.

Description

Shaver cartridge with slot

The present invention relates to a razor cartridge.

A typical razor cartridge consists of a blade and a housing, the blade housing generally comprising a seat on which the blade rests. The blade is seated in the seating portion, and a clip surrounding the blade and the blade housing is assembled on the side of the blade housing so that the blade can be fixed, thereby combining the blade and the blade housing more tightly, thereby completing one razor cartridge.

When shaving, shaving aids such as shaving foams or gels are used so that the razor cartridge gently passes through the skin. The user applies the shaving foam to the skin to be shaved and causes the blade to cut the hair as the razor cartridge passes the shaved foam applied skin.

However, if the shaving foam or gel for lubrication purpose is applied to the skin too much, the adhesion between the blade and the skin is reduced, rather cutting may not be made smoothly. Therefore, an appropriate amount of shaving foam or gel needs to be used.

On the other hand, the importance of post-shaving cleaning performance has increased as much as the shaving performance of razors, and many razor cartridges have been designed with open openings to facilitate the introduction of washing water into the razor cartridge and the discharge of shaving residue while maintaining the shaving performance. .

The problem to be solved by the present invention is to provide a razor cartridge that improves the adhesion between the blade and the skin.

The objects of the present invention are not limited to the above-mentioned objects, and other objects that are not mentioned will be clearly understood by those skilled in the art from the following description.

Razor cartridge according to an embodiment of the present invention for solving the above problems, at least one blade; And a housing in which the at least one blade is accommodated, wherein the housing comprises: a first skin contact member located at the forefront of the housing; A second skin contact member located behind the first skin contact member and in front of the at least one blade; A third skin contact member located behind the at least one blade; A first slot defined as an area between the first skin contact member and the second skin contact member; And a second slot defined as an area between the foremost blade located at the most front of the at least one blade and the second skin contact member, wherein the first slot and the second slot are disposed above and below the housing. The unidirectional length of the first slot formed through and extending in the longitudinal direction perpendicular to the shaving direction may be longer than the unidirectional length of the second slot.

The second skin contact member may be a rigid material.

The unidirectional length of the first slot may be formed in the range of 1.5mm to 5.0mm.

The longitudinal length of the first slot and the longitudinal length of the second slot may be less than or equal to the longitudinal length of the at least one blade.

The razor cartridge according to the embodiment further comprises a connecting portion pivotally coupled with respect to the housing, wherein a pivot axis of the pivotable connecting portion is parallel to the longitudinal direction, and the cutting edge of the foremost blade and the first skin contact. It may be located below the region between the members. The pivot axis may be located below the area between the cutting edge of the foremost blade and the second skin contacting member, may be located below the area between the first skin contacting member and the second skin contacting member. 2 may be located below the area adjacent to the skin contact member. The pivot axis may also be disposed in a position that is 40% to 50% of the unidirectional length of the housing from the front wall of the housing along the unidirectional direction of the housing.

The razor cartridge according to the embodiment may further include an elastic member coupled to the second skin contact member.

The elastic member may include a fixed end fixed to the second skin contact member, and a free end floating in the first slot.

The top profile of the elastic member may be different from the top profile of the housing adjacent to the elastic member.

The curvature of the elastic member top profile may be greater than the curvature of the housing top profile adjacent to the elastic member.

The free end may be disposed below the housing top profile adjacent to the elastic member.

The shaving plane may be a surface connecting the upper surface of the second skin contact member and the upper surface of the third skin contact member.

A distance between the rear wall of the housing and the cutting edge of the rearmost blade disposed at the rearmost of the at least one blade may be formed in the range of 0.4 mm to 3.6 mm.

The first skin contact member may further include a lubrication member.

A razor cartridge according to the embodiment; And a razor comprising a handle coupled with the razor cartridge may be provided.

Specific details of other embodiments are included in the detailed description and the drawings.

According to embodiments of the present invention has at least the following effects.

Excessive shaving foam and shaving residue can be effectively drained to enhance skin and blade adhesion.

A stable shaving plane is provided by the plurality of contact members.

The second slot area straightens the hairs in front of the blades, and the cutting is effective by protruding the skin by the first slot area.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification. Other effects not mentioned will be clearly understood by those skilled in the art from the description of the claims.

1 is a perspective view of a razor cartridge according to an embodiment of the present invention.

2 is a rear perspective view of the razor cartridge according to an embodiment of the present invention.

3 is an exploded perspective view of the razor cartridge according to an embodiment of the present invention.

Figure 4 is an exploded rear view of the razor cartridge according to an embodiment of the present invention.

5 is a front view of a razor cartridge according to an embodiment of the present invention.

6 is a rear view of the razor cartridge according to an embodiment of the present invention.

7 is a side view of a razor cartridge according to an embodiment of the present invention.

8 is a side cross-sectional view of the razor cartridge in accordance with an embodiment of the present invention.

9 is a side cross-sectional view showing the operation of the first slot 41 of the razor cartridge 1 according to the embodiment of the present invention.

* Description of the sign

1: shaver cartridge 10: housing

11: upper surface of the housing 12: lower surface of the housing

13 housing rear wall 14 housing front wall

15 housing side wall 16 pivot hole

17: cam face 18: seating portion

19: through hole 21: first skin contact member

22: second skin contact member 23: third skin contact member

30: elastic member 31: fixed end

32: free end 41: first slot

42: second slot 51: blade

52: Lubrication Band 53: Clip

60 connector 61 holder

62: connecting portion 63: separation projection

70: trimmer 71: trimmer blade

72: trimmer guard 511: the front blade

512: rearmost blade A: pivot axis

D: shaving direction E: elastic member top profile

P1: shaving plane P2: housing top profile

R: shaving residue S: skin

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used in a sense that can be commonly understood by those skilled in the art. In addition, the terms defined in the commonly used dictionaries are not ideally or excessively interpreted unless they are specifically defined clearly.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. In this specification, the singular also includes the plural unless specifically stated otherwise in the phrase. As used herein, "comprises" and / or "comprising" does not exclude the presence or addition of one or more other components in addition to the mentioned components.

In addition, the embodiments described herein will be described with reference to cross-sectional and / or schematic views, which are ideal illustrations of the invention. Accordingly, shapes of the exemplary views may be modified by manufacturing techniques and / or tolerances. In addition, each component in each drawing shown in the present invention may be shown to be somewhat enlarged or reduced in view of the convenience of description. Like reference numerals refer to like elements throughout the specification, and "and / or" includes each and every combination of one or more of the mentioned items.

Spatially relative terms are to be understood as including terms in different directions of components in use or operation in addition to the directions shown in the figures. The components may be oriented in other directions, so that spatially relative terms may be interpreted according to their orientation.

Hereinafter, with reference to the accompanying drawings will be described in detail the configuration of a preferred embodiment of the present invention.

1 is a perspective view of a razor cartridge 1 according to an embodiment of the present invention. FIG. 2 is a rear perspective view of the razor cartridge 1 according to an embodiment of the present invention.

1 and 2, the razor cartridge 1 according to an embodiment of the present invention is largely composed of a housing 10 for receiving the blade 51, and a connector 60 connected to the housing 10. It can be seen.

The housing 10 is a skeletal component of the razor cartridge 1 and extends in one direction (long direction) to accommodate at least one blade 51. The blade 51 may be fixed by means such as a clip 53 after it is received in the housing 10.

The housing 10 forms an upper open surface such that the edge of the blade 51 is exposed to the outside. Therefore, the hair can be cut by moving along the shaving direction D while the cutting edge of the blade 51 exposed to the upper opening surface of the housing 10 by the user's operation is in contact with the skin.

The connector 60 is connected to the lower side of the housing 10. Connector 60 is a component that connects the razor cartridge 1 and the razor handle (not shown) to complete one razor. The connector 60 is pivotally connected with respect to the housing 10 and has a relative movement in relation to the housing 10. The manner and position at which the connector 60 is connected to the housing 10 will be described later in detail with reference to FIGS. 3 to 4 and the description of FIG. 8.

The connector 60 includes a holder 61 which is a connection portion of the handle and the connector 60. Although the holder 61 is illustrated to include an opening and a protrusion in one embodiment, the shape is not limited thereto and may be introduced as long as the holder 61 is formed in a shape corresponding to the handle to fix the handle.

When the handle is connected and fixed to the holder 61 of the connector 60, the user can perform the shaving by manipulating the handle to move the razor cartridge 1. At this time, the connector 60 and the housing 10 may have a relative movement with each other, so that the housing 10 pivots about the connecting portion 62 with the connector 60 according to the curvature of the skin, thereby enabling a smooth shave. .

In the present invention, the vertical direction refers to the z-axis direction shown in each drawing. Among them, the upward direction means that the open surface of the housing 10 is located and viewed, and the blade 51 is exposed, and the downward direction means the opposite direction.

Shaving direction (D) refers to the direction in which the user shaves using the razor cartridge (1), and parallel to the y-axis so that the cutting of the hair by the edge of the blade 51 and the housing rear wall ( 13, the direction toward the housing front wall 14. Here, the front means the direction in which the housing front wall 14 and the first skin contact member 21 are located along the y axis with respect to the housing 10, and the rear means the y axis with respect to the housing 10. As such, it means the direction in which the housing rear wall 13 and the third skin contact member 23 are located.

In addition, the long direction means the direction in which the housing 10, the blade 51, the slot, etc. extend, means the x-axis direction shown in each drawing, the unidirectional direction is perpendicular to the long direction and relative This means a direction in which each component is shortly formed along the y axis of each drawing. That is, the unidirectional direction and the long direction are orthogonal.

3 is an exploded perspective view of the razor cartridge 1 according to the embodiment of the present invention. 4 is a rear exploded perspective view of the razor cartridge 1 according to an embodiment of the present invention.

3 and 4, the housing 10, at least one blade 51 accommodated in the housing 10, a clip 53 for fixing the blade 51 to the housing 10, and an elastic member 30. It can be seen that the lubrication band 52, the trimmer 70 and the connector 60.

In addition to the description of FIGS. 1 and 2, the housing 10 includes a through hole 19 that opens downward, both housing sidewalls 15, and a housing front wall 14 positioned in front and rear of the housing 10. It can be seen that it includes a housing rear wall 13, seating portion 18, cam face 17 and pivot hole 16.

The housing front wall 14 and the housing rear wall 13 are outer walls positioned at the front and rear of the housing 10, respectively, and serve as front and rear boundaries of the housing 10. In addition, the housing side wall 15 is an outer wall positioned at both ends of the longitudinal direction of the housing 10, and serves as a longitudinal boundary of the housing 10. That is, the housing 10 is roughly opened upward and downward, and is surrounded by each outer wall in the longitudinal direction and the front and rear. The blade 51 is accommodated in the inner space formed by these outer walls.

The through hole 19 is an opening opened toward the lower side of the housing 10, and the washing water may be introduced or the shaving residue may be discharged. In one embodiment of the present invention, the through hole 19 is divided into two by the mounting portion 18 located in the center, but the configuration of the through hole 19 is not limited thereto.

The seating portion 18 is a component to which the base of the blade 51 is seated and fixed. In one embodiment of the present invention, the seating portion 18 is formed at an intermediate point along the longitudinal direction of the housing 10, and the longitudinal direction of the housing 10. The mounting portion 18 may be formed at both ends. However, the number and arrangement of the seating unit 18 is not limited thereto, and may be disposed at four places at equal intervals along the long direction of the housing 10 or may be formed to extend along the long direction of the housing 10. In another variation, the seating portion 18 may not be located at an intermediate point along the longitudinal direction of the housing 10, but may be located at both ends of the longitudinal direction of the housing 10 to form one through hole 19. The seating portion 18 is sufficient if the blade 51 can be fixed to the housing 51 to the extent that the shaving can be smoothly to withstand the force applied during cutting by being fixed without leaving the housing 10. Therefore, the slit formed extending in the longitudinal direction and formed in a number corresponding to the number of the blades 51 to be seated may be used as the seating part 18, and the blades 51 in front and rear of the blades 51. It may be formed in a peg (peg) type to contact and fix the blade 51.

In addition to the description of FIGS. 1 and 2, the connector 60 also includes a connection 62. The connecting portion 62 is a component pivotally coupled to the pivot hole 16 of the housing 10 to be described later, and may be formed in the form of a protrusion or a cylinder. In one embodiment of the present invention, but the connection portion 62 is formed at both ends of the longitudinal direction of the connector 60 to be coupled to the pivot hole 16, the number and arrangement method is not limited thereto. By pivotally coupling the connecting portion 62 of the connector 60 and the pivot hole 16 of the housing 10, relative movement of the housing 10 and the connector 60 is possible.

The connector 60 includes a separating protrusion 63. The pusher of the handle needs to be pushed so that the handle moves away from the housing 10 in the process of detaching the handle connected to the connector 60. .

The blade 51 is a component for cutting hair using a sharp cutting edge, and is configured in at least one of the present invention. As the blade 51, a bent blade formed by bending a planar material having a cutting edge may be used, and a flat blade having a flat shape that is not bent or a steel blade having the blade 51 member welded to the upper surface of the bent support. May be used. The blade 51 is generally made of a metal material, especially stainless steel. However, the material is not limited thereto and may be used as the material of the blade 51 as long as the material can withstand a predetermined strength or more.

In the exemplary embodiment of the present invention, the razor cartridge 1 is illustrated as having a total of seven bending blades having a cutting edge, but the type and number thereof are not limited thereto.

The cam surface 17 is a component formed below the housing 10 and is in the form of a protruding protrusion. A component that supports the plunger of the handle.

The pivot hole 16 is a cavity to which the connector 62 of the connector 60 is connected, and is formed in a shape corresponding to the appearance of the connector 62 so that the connector 62 of the connector 60 can be pivotally coupled. do. In one embodiment of the present invention, a total of two are formed on the side wall 15 of the housing 10 at both ends in the longitudinal direction of the housing 10, but located in front of the second skin contact member 22, but the pivot hole 16 The arrangement position and the number are not limited thereto, and other modifications are possible as long as they can be pivotally connected to each other in relation to the connection portion 62. For example, the connecting portion 62 may be in the form of a cavity formed concavely dug in, and the pivot hole 16 may be formed of a protrusion corresponding to the shape of the connecting portion 62.

The clip 53 is a component used to more securely secure the blade 51 seated on the seating portion 18 to the housing 10. The clip 53 is a part of the housing rear wall 13 and the upper and lower surfaces of the housing 10. It is formed to surround. The clip 53 may be formed of a metal material, and in one embodiment of the present invention, a total of two clips are represented as being coupled to both ends of the longitudinal direction of the housing 10, but the arrangement and number of the clips 53 are limited thereto. It doesn't work.

After the blade 51 is seated in the seating portion 18, the clip 53 is engaged to press the cutting edge of the blade 51 downward of the housing 10. By pressing both legs of the clip 53 upward from the lower surface of the housing 10, the clip 53 can be firmly fixed to the housing 10.

In one embodiment of the present invention, the coupling structure of the clip 53 is represented such that the clip 53 covers both ends in the longitudinal direction on the upper surface of the housing 10, surrounds the housing rear wall 13, and is engaged at the lower surface. That is, one of the legs of the clip 53 surrounds the rear wall 13 of the housing, and the other leg is inserted into the through hole of the clip 53 to protrude and bend through the housing lower surface 12. . However, the housing front wall 14 and the housing rear wall 13 may be surrounded by the clip 53 at both ends in the longitudinal direction, and the through hole of the clip 53 is further formed so that the leg of the clip 53 is connected to the housing front wall. It may be inserted into the through hole of the clip 53 without enclosing the 14 or the housing rear wall 13 so as to protrude from the housing lower surface 12.

The elastic member 30 is a component coupled to the second skin contact member 22 and has a fixed end 31 and a free end 32. The action and profile of the elastic member 30 will be described later in detail with reference to FIG. 8.

The lubrication band 52 is a component that provides a lubricating material for helping hair cutting, and is located on an upper surface of the housing 10. In an embodiment of the present invention, the lubrication band 52 is positioned to be adjacent to the first skin contact member 21 and extends along the long direction of the housing 10, but the lubrication band 52 is formed by the blade. It may be located behind 51.

Trimmer 70 is a component for maintaining the sideburns or hair of a certain length, is formed under the razor cartridge (1). This is to prevent cutting by the blade 51 of the razor and cutting by the trimmer 70 at the same time. In one embodiment of the present invention, the trimmer 70 is represented as being formed on the rear side of the lower surface of the razor cartridge 1.

The trimmer 70 is composed of a trimmer blade 71 and a trimmer guard 72. The trimmer blade 71 is supported between the housing 10 and the trimmer guard 72 and is arranged so that the cutting edge protrudes downward. Like the blade 51, it may be formed of a bending blade, a steel blade, etc., and may have a cutting edge to cut the hair. In the exemplary embodiment of the present invention, the trimmer 70 is represented as being provided with one trimmer blade 71 that is bent once, but may include a plurality of trimmer blades 71.

Trimmer guard 72 is a component that supports trimmer blade 71 and contacts the skin by pressing the base of trimmer blade 71 against housing 10 and located further down than trimmer blade 71. . The trimmer blade 71 protrudes into an area between the trimmer guard 72 and the housing rear wall 13. The plane connecting the trimmer guard 72 and the housing rear wall 13 becomes the trimming plane in which the trimming takes place.

Hereinafter, each skin contact member and a slot will be described with reference to FIGS. 5 and 6.

5 is a front view of the razor cartridge 1 according to an embodiment of the present invention. 6 is a rear view of the razor cartridge 1 according to an embodiment of the present invention.

5 and 6, the razor cartridge 1 according to an embodiment of the present invention is the first skin contact member 21, the second skin contact member 22 and the third skin contact while going from the front to the rear And a first slot 41 between the first skin contacting member 21 and the second skin contacting member 22, the second skin contacting member 22 and the third skin contacting member ( The second slot 42 is included between 23.

The first skin contact member 21 is located on the upper surface of the housing front wall 14. That is, it is disposed at the front of the housing 10 to support the skin during shaving. The second skin contact member 22 is a component disposed in front of the foremost blade 511 located at the foremost of the at least one blade 51 and is positioned on the upper surface of the housing 10. The third skin contact member 23 is a component disposed at the rear of the rearmost blade 512 located at the rearmost of the at least one blade 51 and is positioned on the upper surface of the housing rear wall 13.

Each skin contact member extends roughly along the long direction of the housing 10, and may be an elastomer or rubber guard, and a comb guard and hair for assisting hair alignment when cutting hair. Additional lubrication bands 52, soap parts and the like may be used to protect the skin during cutting. In particular, the second skin contact member 22 may be made of a rigid material. The shape of the pattern formed on each skin contact member may vary, but is not limited thereto, such as protrusions, openings, and wave patterns.

The first slot 41 is an opening formed in the space between the first skin contact member 21 and the second skin contact member 22. The lubrication band 52 contacts the first skin in accordance with an embodiment of the present invention. If it is located behind the member 21 may be defined as the space between the lubrication band 52 and the second skin contact member 22. The second slot 42 is an opening formed in the space between the second skin contact member 22 and the foremost blade 511 of the at least one blade 51. That is, the blades 51 are arranged in the order of the second slot 42-the second skin contact member 22-the first slot 41-the first skin contact member 21 along the shaving direction D. FIG. .

Since the first slot 41 is ahead of the second slot 42 in the shaving direction D when shaving, the first slot 41 meets the skin before the second slot 42. Accordingly, the second skin contact member 22, which is the boundary of the first slot 41, blocks the shaving aid material or residue that is excessively applied to the skin and is discharged downward through the first slot 41. At this time, in order to prevent the shaving aid material from being excessively removed through the first slot 41 and to maintain a condition in which an appropriate amount of the shaving aid material is applied to the skin, the long length of the first slot 41 is set to a blade. It may be formed less than or equal to the longitudinal length of (51).

When the first slot 41 is in contact with the skin, the skin convex downwards through the first slot 41. As a portion of the skin protrudes downward, the skin is pulled out so that the skin can be better adhered to the razor cartridge 1.

The second slot 42 is divided by the seating portion 18 formed extending in the shaving direction (D) in the longitudinal center region of the housing 10 in one embodiment of the present invention, one on one side and the other in the longitudinal direction A total of two are expressed. By changing the number of seating parts 18 and the arrangement method, the number of second slots 42 can be changed. As described above, since the seating portion 18 is not positioned in the middle region of the longitudinal direction of the housing 10 but is positioned at both ends in the longitudinal direction, one through hole 19 can be formed, and thus the second slot 42 is formed. ) May also be formed as one. In the same principle, when two seating units 18 are disposed at the center, various modifications may be possible depending on the number and arrangement of the seating units 18 such that three second slots 42 may be formed.

The unidirectional length of the first slot 41 is longer than the unidirectional length of the second slot 42. Preferably, the unidirectional length of the first slot 41 may be formed within a range of 1.5 mm to 5.0 mm, and the unidirectional length of the second slot 42 may be formed within a smaller numerical range. Therefore, the first slot 41 is suitable for protruding the skin while discharging a large amount of shaving aid material, and the second slot 42 uprights the hairs on the skin protruding through the first slot 41. It is suitable for cutting smoothly by the blade 51.

The longitudinal length of the second slot 42 may be less than or equal to the longitudinal length of the blade 51.

The first slot 41 and the second slot 42 extend in the longitudinal direction of the housing 10 and penetrate and open upwards and downwards to facilitate the access of the washing water or the shaving residues up and down.

The second skin contacting member 22 and the third skin contacting member 23 come into contact with the skin during shaving to form a shaving plane P1 at which the edge of the blade 51 meets the skin on the upper surface 11 of the housing. The shaving plane P1 will be described later in the description of FIG. 8.

Referring to FIG. 6, the direction of the pivot axis A may be confirmed. The pivot axis A of the razor cartridge 1 according to the embodiment of the present invention is parallel to the longitudinal direction of the housing 10 and is a region between the first skin contact member 21 and the second skin contact member 22. Located in the first slot 41. According to another embodiment of the present invention, however, the pivot axis A may be located in the second slot 42 between the edge of the foremost blade 511 and the second skin contact member 22, and the second skin contact. It may be located below the member 22. That is, the pivot axis A may be located in an area between the foremost blade 511 and the first skin contact member 21. The vertical position of the pivot axis A will be described later with reference to FIG. 8.

At the same time, the pivot axis A passes through the connecting portion 62 and the pivot hole 16 of the connector 60, and the connecting portion 62 becomes a rotation axis that rotates relative to the pivot hole 16. As shown in FIG.

The elastic member 30 is a component connected to the second skin contact member 22 and is made of a material having elasticity. The elastic member 30 includes a fixed end 31 and a free end 32, wherein the fixed end 31 is connected to the second skin contact member 22 and the free end 32 is formed of the fixed end 31. It is connected to the front and floats in the first slot 41.

The free end 32 of the elastic member 30 is a component such as a cantilever protruding from the fixed end 31. When the external force is applied, the free end 32 moves up and down, and when the external force disappears, the free end 32 returns to its original position. Can be.

The elastic member 30 has a curvature and is formed to extend downward of the first slot 41. Therefore, a larger area may contact the protruding skin when the skin protrudes below the first slot 41 during shaving, as compared with otherwise. As the elastic member 30 having a relatively high coefficient of friction with the skin comes into contact with the skin in the first slot 41, the skin may be stretched.

The free end 32 of the elastic member 30 is formed in a plurality of annular through-holes in one embodiment of the present invention is expressed to facilitate the discharge of foreign matter, the shape is not limited thereto. In addition, the width becomes narrower toward the tip of the free end 32 from the fixed end 31 may be formed to be tapered (taper).

In addition, the distance between the rear wall 13 of the housing 10 and the edge of the rearmost blade 512 may be formed in the range of 0.4 mm to 3.6 mm. Since the gap between the housing rear wall 13 and the edge of the rearmost blade 512 is formed narrow, precise shaving is possible even with the main shaving blade 51.

Hereinafter, the position of the vertical axis of the pivot axis A and the profile E of the elastic member 30 will be described with reference to FIGS. 7 and 8.

7 is a side view of the razor cartridge 1 according to an embodiment of the present invention. 8 is a side cross-sectional view of the razor cartridge 1 according to an embodiment of the present invention.

7 and 8, the upper and lower surfaces of the razor cartridge 1 according to an embodiment of the present invention are present, the trimmer 70 and the connector 60 are disposed on the lower surface of the razor cartridge 1, and at least one upper surface It can be seen that the cutting edge of the blade 51 and the

skin contact members

21, 22, 23, the elastic member 30, and the lubrication band 52 are formed.

The shaving plane P1 is formed as a surface connecting the upper surface of the second skin contact member 22 and the upper surface of the third skin contact member 23. As the at least one blade 51 is positioned between the two

contact members

22 and 23, hairs on the skin passing through the area may be cut. The cutting edge of the blade 51 may protrude upward more than the shaving plane P1, but may be located below it, or may have a height formed to contact the shaving plane P1.

The upper surface of the second skin contact member 22 and the upper surface of the first skin contact member 21 or the lubrication band 52 form a housing upper profile P2 adjacent to the elastic member 30. Since the profile of the housing upper surface 11 is formed in the embodiment, the lubrication band 52 protrudes upward more than the first skin contact member 21, so that the upper surface of the lubrication band and the second skin contact member ( 22 is formed in a plane connecting the upper surface, but in another embodiment, the first skin contact member 21 protrudes relative to the lubrication band 52 so that the upper surface of the first skin contact member 21 and the second skin contact member ( 22) may be formed in a plane connecting the upper surface.

The upper surface of the elastic member 30 forms the elastic member upper profile E. The elastic member upper surface profile E may be formed differently from the housing upper surface profile P2. As described above, since the elastic member 30 may extend downward from the first slot 41, the elastic member upper profile E may be used to contact the skin protruding downward through the first slot 41. It may be located below the housing top profile P2 adjacent to 30. In addition, the curvature of the elastic member upper surface profile (E) can be formed larger than the curvature of the housing upper surface profile (P2) that is relatively straight. The elastic member 30 including the free end 32 in contact with the skin, as the razor cartridge 1 moves in the shaving direction D, repeatedly touches and spaces, resulting in a rattling and scratching feeling. To the user. However, by increasing the curvature of the elastic member upper profile (E) relative to the curvature of the housing upper profile (P2), the contact between the skin and the free end 32 is terminated relatively quickly during the shaving process to prevent the feeling of being scratched. have.

The pivot axis A is located below the area between the cutting edges of the first skin contact member 21 and the foremost blade 511 as described above, and among them, the first skin contact member 21 as shown in the figure. And the lower portion of the region between the second skin contact member 22. More specifically, the pivot axis A is located at the bottom of the plane connecting the upper surface of the first skin contact member 21 and the cutting edge of the foremost blade 511, among which the first skin contact is shown in the figure. The upper surface of the member 21 and the upper surface of the second skin contact member 22 may be positioned in the lower portion of the plane.

Pivot axis A is preferably disposed at a position from 40% to 50% of the housing 10 unidirectional length rearward from housing front wall 14.

As shown in FIGS. 1 and 2, since the connecting portion 62 may be located at both sides of the elastic member 30 in the longitudinal direction, the pivot axis A may penetrate the elastic member.

This position of the pivot axis A is very close to the top surface of the housing 10 as compared to the position of the pivot axis A of the prior arts. Whereas the portion where the connector 60 is connected to the housing 10 is usually formed on the rear side of the housing 10, in one embodiment of the invention the pivot is in an area within the housing 10 very close to the housing top surface 11. A shaft A is formed and the connecting portion 62 of the connector 60 is connected. Therefore, space is saved, and the shaving plane P1 to which the external force is applied is close to the pivot axis A, thereby increasing the external force required for the housing 10 to pivot. When the external force required for the housing 10 to pivot is reduced, it becomes difficult for a user to delicately perform shaving due to the bending of the skin by manipulating the handle, and the housing 10 can be easily detached from the skin. However, the razor cartridge 1 according to the embodiment of the present invention increases the external force for pivoting, so that a more delicate shave is possible, and the adhesion of the housing upper surface 11 to the skin may increase.

In addition, in the prior art, the pivot axis is disposed close to the front part of the cartridge, so that when the razor cartridge passes the curved part of the skin, the rear part of the cartridge is lifted up along the curved part without being closely adhered to the skin. There is a problem. However, in the present invention, the pivot axis A is located close to the center with respect to the unidirectional direction of the housing 10. Therefore, during shaving, the force is distributed and provided to the entire front and rear regions of the razor cartridge 1, so that the upper surface of the razor cartridge 1 positioned in front and rear of the pivot axis A evenly supports the skin, thereby increasing skin adhesion. do.

Referring to FIG. 9, when shaving, the skin S is in close contact with the first skin contact member 21 or the lubrication band 52 and at the same time in close contact with the second skin contact member 22 to the first slot 41. It may be convex. At the same time, the shaving residue R can be discharged downward of the shaver cartridge 1 through the first slot 41. By having the first slot 41, it is possible to clean the skin S in a more smooth state for shaving, to smoothly discharge the shaving residue R, and to hold the razor cartridge 1 sanitarily.

Those skilled in the art will appreciate that the present invention can be embodied in other specific forms without changing the technical spirit or essential features of the present invention. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive. The scope of the present invention is shown by the following claims rather than the above description, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included in the scope of the present invention. do.

Although the present invention has been described in connection with the above-mentioned preferred embodiments, it is possible to make various modifications or variations without departing from the spirit and scope of the invention. Accordingly, the appended claims will include such modifications and variations as long as they fall within the spirit of the invention.

Claims

At least one blade; And

A razor cartridge comprising a housing in which the at least one blade is accommodated,

The housing,

A first skin contact member located at the forefront of the housing;

A second skin contact member located behind the first skin contact member and in front of the at least one blade;

A third skin contact member located behind the at least one blade;

A first slot defined as an area between the first skin contact member and the second skin contact member; And

A second slot defined as an area between the foremost blade located most forward of the at least one blade and the second skin contact member,

The first slot and the second slot is formed to penetrate up and down of the housing, extend in the longitudinal direction perpendicular to the shaving direction,

The unidirectional length of the first slot parallel to the shaving direction is longer than the unidirectional length of the second slot.
The method of claim 1,

And the second skin contact member is a rigid material.
The method of claim 1,

The unidirectional length of the first slot, the razor cartridge is formed in the range of 1.5mm to 5.0mm
The method of claim 1,

The razor cartridge of claim 1, wherein the longitudinal length of the first slot and the longitudinal length of the second slot are less than or equal to the longitudinal length of the at least one blade.
The method of claim 1,

Further comprising a connection pivotally coupled to the housing,

The pivot axis of the pivotable connection portion is parallel to the longitudinal direction and is located below the area between the cutting edge of the foremost blade and the first skin contact member.
The method of claim 1,

Further comprising a connection pivotally coupled to the housing,

The pivot axis of the pivotable connection portion is parallel to the longitudinal direction and is located below the area between the cutting edge of the foremost blade and the second skin contact member.
According to claim 1,

Further comprising a connection pivotally coupled to the housing,

The pivot axis of the pivotable connecting portion is parallel to the longitudinal direction and is located below the region between the first skin contact member and the second skin contact member.
The method of claim 1,

Further comprising a connection pivotally coupled to the housing,

The pivot axis of the pivotable connecting portion is parallel to the longitudinal direction and is located below the region adjacent to the second skin contact member.
The method of claim 1,

Further comprising a connection pivotally coupled to the housing,

And a pivot axis of the pivotable connecting portion is disposed at a position from 40% to 50% of the unidirectional length of the housing from the front wall of the housing along the unidirectional direction of the housing.
The method of claim 1,

The razor cartridge further comprises an elastic member coupled to the second skin contact member.
The method of claim 10,

The elastic member includes a fixed end fixed to the second skin contact member, and a free end floating in the first slot.
The method of claim 10,

And a top profile of the elastic member different from a housing top profile adjacent to the elastic member.
The method of claim 10,

And the curvature of the elastic member top profile is greater than the curvature of the housing top profile adjacent to the elastic member.
The method of claim 11,

And the free end is disposed below the housing upper profile adjacent the elastic member.
The method of claim 1,

The shaving plane is a razor cartridge which is a surface connecting the upper surface of the second skin contact member and the upper surface of the third skin contact member.
According to claim 1,

And the spacing between the rear wall of the housing and the cutting edge of the rearmost blade disposed at the rearmost of the at least one blade is formed in the range of 0.4 mm to 3.6 mm.
The method of claim 1,

The first skin contact member further comprises a lubrication band.
18. The razor cartridge of any one of claims 1 to 17; And

A razor comprising a handle coupled with the razor cartridge.