KR20160020320A

KR20160020320A - Razor

Info

Publication number: KR20160020320A
Application number: KR1020140105506A
Authority: KR
Inventors: 유형석; 유광석; 장성일
Original assignee: (주)인피노
Priority date: 2014-08-13
Filing date: 2014-08-13
Publication date: 2016-02-23

Abstract

According to an embodiment of the present invention, provided is a razor which comprises: a cartridge having a body unit wherein a razor blade unit is installed and a coupling unit connected to the body unit to be elastically transformed; and a handle unit supporting the cartridge, wherein a coupling groove is formed to be attached and detached to the coupling unit. Moreover, the coupling groove has a shape corresponding to an appearance of the coupling unit, and the coupling unit is closely coupled to the coupling groove.

Description

Razor {RAZOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a razor, and more particularly, to a razor for facilitating detachment of a cartridge.

The razor is equipped with a razor blade and is used to cut hairs such as hairs and whiskers.

1 is a perspective view showing a conventional razor.

1, the razor 10 includes a cartridge 20, an engaging portion 30, and a handle portion 40. As shown in Fig. The cartridge 20 is provided with a blades 21 so that the user can cut hairs such as hairs and whiskers grown in the body.

The grip portion 40 is a portion gripped by the user for smooth shaving. The grip portion 40 is provided with a fixing hook portion 41 so as to be selectively detachable from the coupling portion 30.

The engaging portion 30 is configured to engage the handle portion 40 and the cartridge 20 and has an engaging groove (not shown) formed at one end of the engaging portion 30, The portion 41 can be inserted and fixed. The other end of the coupling portion 30 is provided with a pivotal support portion 31 so as to be inserted into the pivotal guide portion 22 formed in the cartridge 20.

However, such a shaver 10 has a complex structure of the cartridge 20 and the engaging portion 30, which makes it difficult to attach and detach the cartridge 20 and the engaging portion 30.

Since the cartridge 20 attached to the engaging portion 30 can be rotated only within the rotation radius of the rotation guiding portion 22, the rotation range of the cartridge 20 is limited. Accordingly, there is a problem that the blade is not completely brought into close contact with a body part having various curved surfaces.

2 is an exemplary view schematically showing a cross section of a conventional cartridge.

As shown in FIG. 2, the end portion 22 of the blade 21 is in line contact with the skin-contacting portion at a diagonal angle. Therefore, even if the blade 22 is slightly inadvertent in shaving, the blade 22 may be vibrated by the end portion 22 of the blade 21.

Because these razor blades are mostly steel, it is difficult to maintain good affinity for contact with the skin.

In addition, the steel razor blade is susceptible to contamination and deterioration due to oxidation caused by frequent contact with moisture and air during use. In severe cases, the blade is rusted and the blade must be frequently replaced. In addition, there is a problem that skin damage may occur due to excessive shaving and bacterial propagation may occur at a damaged area.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a razor capable of easily detaching and attaching a cartridge and effectively reducing skin damage due to a razor blade.

According to an aspect of the present invention, there is provided a cartridge having a body portion having a blade portion and a fastening portion connected to the body portion and capable of elastically deforming. And a handle for supporting the cartridge, wherein the engaging groove has a shape corresponding to the outer shape of the engaging portion, and the engaging portion is in tight contact with the engaging groove, The present invention provides a razor characterized in that

According to an embodiment of the present invention, the coupling portion may include a first support portion extending from the body portion and spaced apart from the body portion so as to form an elastic space portion. A second support portion corresponding to the first support portion, forming a space spaced apart from the first support portion; A bending part connecting the first support part and the second support part to form the spacing space part; And a connecting portion connecting ends of the pair of second supporting portions.

According to an embodiment of the present invention, the fastening protrusion having a round shape may be formed on both sides of the fastening groove, and a fixing groove corresponding to the fastening protrusion may be formed on an outer surface of the first and second supporting portions. have.

In one embodiment of the present invention, the first support portion may extend from the body portion at an angle of 20 ° to 70 °.

In one embodiment of the present invention, the height of the coupling groove is equal to or shorter than the height from the first supporting portion to the second supporting portion, and the distance between the fixing protrusions is larger than the height between the both side ends of the pair of bending portions As shown in FIG.

In one embodiment of the present invention, the body includes: an outer shape having a through hole formed therein to expose a blade provided on the blade; A release preventing portion protruding inwardly of the through hole and supporting both ends of the blade; A hook support portion protruding inwardly of the through hole and provided with a rib for supporting a side surface of the blade portion; And a hook portion protruding from an end of the hook support portion and selectively detachably attaching the blade portion to the outer shape portion. The hook portion may be configured to be elastically deformed away from the outer shape portion.

According to an embodiment of the present invention, the blade unit may include a frame unit having a predetermined length and spaced apart from one another along a predetermined direction, And a cutter unit integrally formed with the frame unit and having a plurality of blades.

In one embodiment of the present invention, the cutter portion is integrally formed with the frame portion, is inclined in one direction, and has a first surface contact portion formed at an end portion thereof so as to be in surface contact with the skin; A second surface contact portion formed on an extension of the first surface contact portion is formed at an end of the second surface contact portion, the second surface contact portion being formed on an extension of the first surface contact portion, A head having a guide portion formed obliquely in front of the two-side contact portion; The main blade is integrally formed with the frame part and is inclined in one direction behind the main blade in a shaving direction. The end part of the third blade is provided on an extension of the first surface contact part, And may include a precision blade having a surface contact.

In one embodiment of the present invention, the precision blade is formed to be shorter than the length of the main blade, and the third surface contact portion may have an area narrower than an area of the first surface contact portion.

In an embodiment of the present invention, the blade portion may be made of a ceramic material.

The effects of the razor according to the present invention described above will be described below.

First, according to the present invention, the cartridge is provided with a fastening portion capable of being elastically deformed, so that the cartridge can be easily attached and detached. That is, the user can easily insert the cartridge into the handle by inserting the fastening portion provided in the cartridge into the fastening groove formed in the handle portion. The first and second support portions and the bending portion, which form a pair of elastic space portions, can be elastically deformed in compression and restoration. Therefore, the fastening portion capable of being elastically deformed can be easily detached from the fastening groove.

Second, according to the present invention, a space is formed between the first and second support portions so that the first support portion can be selectively rotated from the second support portion. That is, depending on the pressing force applied to the cartridge, the rotation angle of the first support part can be selectively adjusted in the spacing space part.

Thirdly, according to the present invention, the elastic space portion and the spacing space portion are formed in the fastening portion, so that the fastening portion can be elastically deformed in all directions of up, down, left, and right, as well as when twisting occurs. Thus, the cartridge increases the efficiency of shaving through rotation corresponding to various curved surfaces of the body.

Fourthly, according to the present invention, a round-shaped fixing protrusion is provided on the inner side of the fastening groove, and a fixing groove having a shape corresponding to the fixing protrusion is formed on the fastening part, so that the cartridge and the knob can be firmly engaged.

Fifthly, according to the present invention, the cartridge is provided with a hook portion so that the blade can be selectively detached. Therefore, the user can selectively replace only the blade portion of the blade when the blade portion is defective.

Sixth, according to the present invention, a first surface contact portion formed to be in surface contact with the skin may be formed at an end portion of the main blade. The first surface contact portion is in surface contact with the skin of the user at the time of shaving so that the skin of the user can be prevented from being caused by the contact of the end portion of the conventional shaving blade with the skin of the user.

Seventhly, according to the present invention, the precision blade is formed on the rear side of the main blade in relation to the shaving direction, and the area of the third blade contact portion of the precision blade can be narrower than the first blade contact portion of the main blade. Therefore, a precision blade can be shaved precisely against the hair passing by the main blade.

Eighth, according to the present invention, the blade portion may be made of a ceramic material. Therefore, there is no oxidization and corrosion occurring in conventional razor blades, less damage and abrasion at the end of the blade, and less risk of contamination and deterioration. In addition, washing is easy and the propagation of bacteria can be effectively prevented.

It should be understood that the effects of the present invention are not limited to the above effects and include all effects that can be deduced from the detailed description of the present invention or the configuration of the invention described in the claims.

1 is a perspective view showing a conventional razor.
2 is an exemplary view schematically showing a cross section of a conventional cartridge.
3 is a perspective view of a razor according to a first embodiment of the present invention.
4 is an exploded perspective view of the razor according to the first embodiment of the present invention.
5 is an exploded perspective view of the cartridge according to the first embodiment of the present invention.
6 is an operational state diagram of the cartridge according to the first embodiment of the present invention.
7 is a cross-sectional view taken along line I-I in Fig.
8 is a longitudinal sectional view of the cartridge and handle in the disassembled state according to the first embodiment of the present invention.
9 is a perspective view showing the body of the cartridge according to the second embodiment of the present invention.
10 is a perspective view of the blade unit according to the third embodiment of the present invention.
11 is a bottom perspective view of the blade unit according to the third embodiment of the present invention.
12 is a side view of a blade according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and similar parts are denoted by like reference characters throughout the specification.

Throughout the specification, when a part is referred to as being "connected" to another part, it includes not only "directly connected" but also "indirectly connected" . Also, when an element is referred to as "comprising ", it means that it can include other elements, not excluding other elements unless specifically stated otherwise.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 3 is a perspective view of a razor according to a first embodiment of the present invention, FIG. 4 is an exploded perspective view of the razor according to the first embodiment of the present invention, FIG. 6 is an operational state diagram of the cartridge according to the first embodiment of the present invention.

3 to 6, the razor 1000 may include a cartridge 100 and a handle 200.

The cartridge 100 is provided with a blade 133 so that the user can cut hair such as hair or whiskers grown in the body using the cartridge 100 coupled with the handle 200. That is, the user can easily shave the handle 200 while grasping the handle 200.

The handle 200 has a curved shape and has a predetermined length to facilitate grasping. As the handle 200 has a curved shape, the skin adhesion force of the blade 133 can be increased. For example, when the same force is applied to the knob portion, the curved knob portion 200 can increase the contact force of the blade 133 against the skin, rather than the knob portion having a linear shape. Therefore, the shaving can be made neat.

A concave groove 201 may be further formed at the other end of the handle 200. Therefore, the user may perform the shaving while grasping the thumb of the user against the concave groove 201 without grasping the grip 200.

At one end of the handle 200 is formed a coupling groove 210 (see FIG. 8) to which the coupling part 120 is coupled. The coupling groove 210 may have a shape corresponding to the outer shape of the coupling portion 120 so that the coupling portion 120 can be stably coupled to the coupling groove 210. That is, the cartridge 100 can be firmly coupled to the handle 200.

On the other hand, the cartridge 100 is detachably attached to the handle 200. Accordingly, when a failure of the cartridge 100 occurs, the user can detach the cartridge 100 from the handle 200 and then engage the new cartridge 100.

The cartridge 100 may include a body portion 110, a fastening portion 120, and a blade portion 130.

The body part 110 is provided with a blade part 130 so that the user can perform a shaving operation using the blade part 130. The blade portion 130 may include a frame portion 131 and a cutter portion 132.

The frame part 131 may be formed to have a predetermined length, and may be spaced apart from one another along a predetermined direction. The frame portions 131 may be spaced apart from each other.

Although the frame part 131 is formed at both ends and the center in the drawing, the forming position and the shape of the frame part 131 are not limited thereto.

The cutter portion 132 may be integrally formed with the frame portion 131 and may have a plurality of blades 133 on the frame portion 131.

Referring to FIG. 5, the body 110 may include an outer shape 111, a separation preventing portion 112, a hook support 113, and a hook 114. The outer shape part 111 forms the outer shape of the body part 110 and the through hole 115 is formed so that the blade 133 provided on the blade part 130 is exposed to the outside. The outer shape portion 111 is formed with a receiving space portion 116 and the blade portion 130 can be received in the receiving space portion 116. That is, the blade unit 130 may be installed in the receiving space portion 116 while being supported and fixed by the hook portion 114 and the separation preventing portion 112.

The separation preventing portion 112 is protruded to the inside of the through hole 115 to prevent the blade portion 130 provided in the accommodation space portion 116 from being released to the outside of the body portion 110. [ At this time, the separation preventing portion 112 supports the both ends of the blade 133 and prevents the blade portion 130 from being separated from the outside.

The hook support portion 113 protrudes inward of the through hole 115 and supports the hook portion 114. A rib 117 is provided on the hook support portion 113 to support and fix the side surface of the blade portion 130 installed in the accommodation space portion 116. Further, the rib 117 is connected to the outer shape part 111 to increase the supporting force of the hook supporting part 113.

The hook portion 114 is vertically engaged from the end of the hook support portion 113 to support and fix the blade portion 130 installed in the accommodation space portion 116. The hook portion 114 supports and fixes the frame portion 131 of the blade portion 130 and fixes the blade portion 130 to the body portion 110. That is, the hook portion 114 is separated from the outer shape portion 111 by the hook supporting portion 113, and thus the blade portion 130 can be selectively coupled to the accommodation space portion 116 through elastic deformation have.

In the state where the hook portion 114 supports and fixes the frame portion 131, the separation preventing portion 112 supports both ends of the blade 133, and the hook support portion 113 supports the side surface of the frame portion 131 The razor blade 130 can be firmly coupled to the body 110.

In this way, the user can selectively detach the blade unit 130 from the body 110 through the hook 114. Specifically, the user places the blade portion 130 in the receiving space portion 116 after applying a predetermined force or more to the opposing hook portion 114. [ Next, the hook portion 114 in a pressurized state is placed, and the hook portion 114 is elastically restored, and the frame portion 131 is supported and fixed. In contrast, when the blade unit 130 installed in the accommodation space 116 is separated from the body 110, the user applies a certain amount of force to the opposing hooks 114 to open the blade unit 130 It can be easily removed from the body portion 110.

The coupling part 120 may include a first support part 121, a second support part 122 and a bending part 123. The coupling part 124 may be optionally further included.

The first support portions 121 extend from the body portion 110 in a pair. That is, the pair of first supporting portions 121 are spaced apart from each other to form the elastic space portion 125. At this time, the elastic space 125 is a space provided to allow the first support 121 to be elastically deformed. The elastic space portion 125 is also formed in the second support portion 122 and the bending portion 123.

The first support part 121 protrudes from the body part 110 at an inclination angle? Of 20 ° to 70 ° from the body part 110. The body 110 having the blade 130 may be inclined with respect to the end of the handle 200. Accordingly, the blade unit 130 coupled to the body 110 can facilitate surface contact with the skin.

The second support portion 122 is configured to correspond to the first support portion 121 and the second support portion 122 is spaced apart from the first support portion 121. That is, the second support part 122 is spaced apart from the first support part 121 to form the spacing part 126. The spacing space 126 is a space that allows the body 110 to rotate when a pressing force greater than a predetermined level is applied to the body 110. That is, the first support part 121 extending from the body part 110 can be selectively rotated according to the pressing force applied to the body part 110 in the spacing space part 126. In other words, the rotation angle of the body part 110 can be adjusted according to the elastic deformation of the first support part 121 due to the bending with reference to the second support part 122.

One end of the bending part 123 is coupled to the end of the first support part 121 and the other end is coupled to the second support part 122. The bending part 123 has a U-shape and connects the first support part 121 and the second support part 122 to each other. That is, the bending part 123 forms the spacing part 126 between the first supporting part 121 and the second supporting part 122 in connecting the first supporting part 121 and the second supporting part 122 do.

The connecting portion 124 connects the ends of the pair of second supporting portions 122. The connecting portion 124 connects each second supporting portion 122 forming the elastic space portion 125 to thereby strengthen the supporting force of the second supporting portion 122 and to apply the pressing force to the second supporting portion 122 The role of dispersing can also be done at the same time. For example, when the pressing force is excessively transmitted to one of the pair of second supporting portions 122 in accordance with the rotation of the body portion 110, the connecting portion 124 may apply a pressing force It is possible to prevent the second support portion 122 from being broken.

The first supporting part 121, the second supporting part 122, the bending part 123, the connecting part 124, the elastic space part 125 and the spacing space part 126 constituting the fastening part 120 have a thickness The elasticity and the turning strength can be controlled by changing the length, spacing, angle, space distance, arrangement position, and material of the body 110. The fastening part 120 can be formed separately or integrally with the body 110.

FIG. 7 is a cross-sectional view taken along the line I-I in FIG. 6, and FIG. 8 is a longitudinal sectional view of the cartridge and the handle in the disassembled state according to the first embodiment of the present invention.

7 and 8, when the fastening part 120 is inserted into the fastening groove 210, the outer surface of the fastening part 120 is in close contact with the inner surface of the fastening groove 210, So that the handle 200 can be stably fixed. That is, the first support part 121, the second support part 122, the bending part 123, and the connection part 124 are tightly coupled to the inner side surface of the coupling groove 210 to connect the cartridge 100 and the handle 200 A firm connection can be made.

On the other hand, fixing projections 220 may be formed on both sides of the coupling groove 210. At this time, on the outer surfaces of the first support part 121 and the second support part 122, a fixing groove 127 having a shape corresponding to the fixing protrusion 220 is formed so that the cartridge 100 and the handle part 200 are fixedly coupled Can be achieved. Here, the fixing protrusion 220 has a round shape so that the coupling portion 120 and the coupling groove 210 can be smoothly coupled.

The distance D1 between the fixing protrusions 220 provided on both sides of the coupling groove 210 is shorter than the distance D2 between the both side ends of the pair of bending portions 123, Is coupled to the fastening groove 210 and then prevented from being easily released.

The height H1 of the coupling groove 210 is equal to or shorter than the height H2 from the first supporting portion 121 to the second supporting portion 122. [ The first support portion 121 and the second support portion 122 are inserted into the coupling groove 210 in a compressed state so that the first support portion 121 and the second support portion 122 are inserted into the coupling groove 210. Accordingly, when the coupling portion 120 is coupled to the coupling groove 210, And the second support portion 122 may be tightly coupled to the inner surface of the coupling groove 210. Accordingly, after the fastening part 120 is coupled to the fastening groove 210, it is possible to prevent the fastening part 120 from easily coming off, and the turning strength can be adjusted.

Since the elastic space portion 125 and the spacing space portion 126 are formed in the coupling portion 120, the coupling portion 120 can be elastically deformed in any direction. That is, the fastening part 120 is configured to be able to rotate through the elastic deformation even when twisting occurs as well as all directions of the upper, lower, left, and right sides from the knob part 200. Therefore, the cartridge 100 provided with the fastening part 120 increases the efficiency of shaving through rotation corresponding to various curved surfaces of the body. That is, the swing direction of the cartridge 100 can be variously changed through the elastic deformation of the fastening portion 120.

As shown in FIG. 3, the bending portion 123 is inserted into the fastening groove 210. The distance D2 between the opposite ends of the bending portion 123 is longer than the distance D1 between the fixing protrusions 220 provided on both side surfaces of the coupling groove 210 so that the bending portion 123 is fixed So that the protrusion 220 is caught.

Next, the user presses the fastening portion 120 in which the fastening is generated by applying a force greater than a predetermined amount in the fastening direction of the fastening groove 210. At this time, the bent part 123, which is made to be elastically deformable, narrows the separation distance and passes between the fixing protrusions 220.

The bending part 123 passing between the fixing protrusions 220 is restored by the elastic deformation so that the fixing grooves 127 formed in the first supporting part 121 and the second supporting part 122 are fixed to the fixing protrusions 220, Respectively.

After the bending portion 123 passes through the fixing protrusion 220, the coupling portion 120 is restored by elastic deformation so that the coupling portion 120 is tightly coupled to the inner surface of the coupling groove 210 .

In contrast, when the fastening part 120 is separated into the fastening recesses 210, the user pulls the body part 110 coupled with the fastening part 120 from the fastening recesses 210 by applying a certain amount of force, (120) can be selectively separated from the engaging groove (210). That is, the user can easily attach and detach the cartridge 100 to the handle 200 by pressing or pulling the cartridge 100 with a force greater than a predetermined level.

FIG. 9 is a perspective view showing a body portion of a cartridge according to a second embodiment of the present invention, in which members referred to by the same reference numerals as those shown in FIGS. 3 to 8 have the same configuration and function, A detailed description thereof will be omitted.

Referring to FIG. 9A, the fastening part 120 'has the configuration of the connecting part 124 (see FIG. 5) removed from the fastening part 120 (see FIG. 5) in the first embodiment. Since the connection portion 124 connecting the end portion of the second support portion 122 is not provided in the coupling portion 120 ', the second support portion 122 can be elastically deformed in the elastic space portion 125 . As such, the coupling portion 120 'may be formed without the connection portion 124 connecting the end portion of the second support portion 122.

Referring to FIG. 9 (b), the body portion 110 'may further include a cover portion 129. The lid part 129 is detachable from the body part 110 'and the lid part 129 is provided with a fastening part 120.

The fastening portion 120 may be provided at various positions of the lid portion 129. That is, it may be located on the front side of the lid part 129, on the center side of the lid part 129, or on the rear side of the lid part 129. 5) coupled to the body 110 'according to the engaging position of the coupling part 120 coupled to the lid part 129 may include a pressurizing part And adhesion can be different. Accordingly, the user can selectively use the lid part 129 that matches the body structure of the user with the body part 110 '.

FIG. 10 is a perspective view of the blade unit according to the third embodiment of the present invention, and FIG. 11 is a perspective view of the blade unit according to the third embodiment of the present invention, Fig.

10 to 12, the blade unit 140 may include a frame unit 150 and a cutter unit 160. As shown in FIG.

The frame part 150 may be formed to have a predetermined length, and may be spaced apart from one another along a predetermined direction. The frame parts 150 may be spaced apart from each other.

Meanwhile, the frame parts 150 may be formed as a pair and may be in the form of a peeler. That is, it is needless to say that a filler having no separate frame part 150 may be formed between two opposed pair of frame parts 150.

The cutter unit 160 may be integrally formed with the frame unit 150 and may have a plurality of blades that are inclined in one direction in a direction perpendicular to the frame unit 150.

The cutter portion 160 may have a main blade 161, a head 162, and a precision blade 163.

The main blade 161 may be integrally formed with the frame portion 150. The main blade 161 may be inclined in one direction.

A first surface abutting portion 164 may be formed at an end of the main blade 161.

The first surface contact portion 164 may be formed flat to be in surface contact with the skin, so that the first surface contact portion 164 may be in surface contact with the user's skin.

The first surface abutting portion 164 is in surface contact with the user's skin at the time of shaving to effectively prevent damage such as skin rashes that may be caused by the abutting of the end portion of the razor blade to the user's skin such as a conventional razor blade .

The main blade 161 may be located at the center of the cutter 160 and may play a major role in shaving the user's hair during shaving.

The main blade 161 may be formed of one or more pieces in consideration of factors relating to the shaving performance, such as the surface contact area between the first surface contact portion 164 and the skin, the angle of the blade, the thickness of the blade, have. For example, when two main blade rails 161 are formed and one precision blade 163 is formed, a triple blade including the precision blade 163 may be formed.

The main blade 161 may be formed to have a blade angle A1 of 90 degrees or less with respect to the first surface contact portion 164. At this time, the smaller the blade angle A1 of the main blade 161, the shaving performance can be improved.

When a plurality of main blades 161 are formed, each of the main blades 161 may be formed with the same or different blade angles, blade spacing W, and thickness T.

As described above, in order to enhance the shaving effect in consideration of the characteristics of the consumer group, for example, the sex, the thickness of the hair, the strength of the hair, and the shaving habit, the blade angle, The spacing can be the same or different. However, the height of each main blade 161 thus formed and the gap between the blades are not changed.

The head 162 may be formed in front of the main blade 161 on the basis of the shaving direction, and may be integrally formed with the frame 150.

A second surface contact portion 165 may be formed on the end of the head 162 and a second surface contact portion 165 may be formed on an extension of the first surface contact portion 164 of the main blade 161 .

A guide portion 166 may be formed in front of the second surface contacting portion 165. The guide portion 166 may be formed in an inclined or rounded shape. The guide portion 166 guides the head 162 provided at the foremost position on the basis of the shaving direction to move on the surface without damaging the skin.

The precision blade 163 may be integrally formed with the frame portion 150 and may be formed behind the main blade 161 based on the shaving direction.

The precision blade 163 may be formed to be inclined in one direction, that is, in the same direction as the forming direction of the main blade 161.

In addition, a third surface contact portion 167 may be formed on the end portion of the precision blade 163 so as to be in surface contact with the skin.

The third surface abutment 167 may be provided on an extension of the first surface abutment 164 to allow stable surface contact with the skin along with the main blade 161 during shaving.

Further, the third surface contact portion 167 may be formed to have an area narrower than the area of the first surface contact portion 164. The precision blade 163 may be shorter than the length of the main blade 161.

As described above, the precision blade 163 is formed on the rear side of the main blade 161 in the direction of the shaving and is formed at the rear of the main blade 161 in the direction of the shaving, and is smaller than the area of the first blade abutting portion 164 of the main blade 161 So that accurate shaving can be possible.

The precision blade 163 may be formed to have a blade angle A2 of 90 degrees or less with respect to the third surface contact portion 167. [ Here, the smaller the blade angle A2 of the precision blade 163, the better the shaving performance can be. The precision blade 163 may be formed of a plurality of precision blades 163 and the precision blades 163 may be formed with the same or different blade angles, .

Since the precision blade 163 is also formed integrally with the frame portion 150, the problem of height and spacing defect of the blade can be originally prevented.

The frame portion 150 and the cutter portion 160 may be made of a ceramic material having high abrasion resistance and high strength. Accordingly, the blade unit 140 according to the present invention is free from oxidation and corrosion like a conventional blade made of steel, less damage and abrasion at the blade end, and less susceptible to contamination and deterioration. In addition, washing is easy, and the propagation of germs can be effectively prevented.

It should be understood, however, that the scope of the present invention is not limited by the scope of the present invention.

It will be understood by those skilled in the art that the foregoing description of the present invention is for illustrative purposes only and that those of ordinary skill in the art can readily understand that various changes and modifications may be made without departing from the spirit or essential characteristics of the present invention. will be. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. For example, each component described as a single entity may be distributed and implemented, and components described as being distributed may also be implemented in a combined form.

The scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be construed as being included within the scope of the present invention.

100: cartridge 110:
111: outer shape part 112: departure prevention part
113: hook support portion 114: hook portion
115: through hole 116:
117: rib 120: fastening part
121: first supporting portion 122: second supporting portion
123: bending portion 124: connection portion
125: elastic space part 126:
127: fixing groove 130, 140: razor blade part
131: frame part 132: cutter part
133: razor blade 200: handle portion
201: concave groove 210: fastening groove
220: Fixing projection 1000: Shaver

Claims

A cartridge having a body portion on which a razor blade unit is provided and a coupling portion connected to the body portion and configured to be elastically deformable; And
And a grip portion formed with a fastening groove to be detachable from the fastening portion and supporting the cartridge,
Wherein the fastening groove has a shape corresponding to the outer shape of the fastening portion, and the fastening portion is tightly coupled to the fastening groove.

The method according to claim 1,
The fastening part includes a first support part, a pair of supporting parts, extending from the body part, spaced apart from each other to form an elastic space part;
A second support portion corresponding to the first support portion, forming a space spaced apart from the first support portion;
A bending part connecting the first support part and the second support part to form the spacing space part; And
And a connecting portion connecting ends of the pair of second supporting portions.

3. The method of claim 2,
Wherein a fixing protrusion having a round shape is formed on both side surfaces of the coupling groove, and a fixing groove corresponding to the fixing protrusion is formed on the outer side surfaces of the first and second supporting portions.

3. The method of claim 2,
Wherein the first support portion extends from the body portion at an angle of 20 ° to 70 °.

The method of claim 3,
The height of the engaging groove is equal to or shorter than the height from the first supporting portion to the second supporting portion and the distance between the fixing protrusions is shorter than the distance between both side ends of the pair of bending portions. Shaver.

The method according to claim 1,
Wherein the body includes: an outer shape having a through hole formed therein to expose a blade provided on the blade;
A release preventing portion protruding inwardly of the through hole and supporting both ends of the blade;
A hook support portion protruding inwardly of the through hole and provided with a rib for supporting a side surface of the blade portion; And
And a hook portion protruding from an end of the hook support portion to selectively detach the blade portion from the outer shape portion,
Wherein the hook portion is configured to be elastically deformed away from the outer shape portion.

The method according to claim 1,
The blade unit may include a frame unit having a predetermined length and spaced apart from one another along a predetermined direction; And
And a cutter portion integrally formed with the frame portion, the cutter portion having a plurality of blades.

8. The method of claim 7,
Wherein the cutter portion is integrally formed with the frame portion and is inclined in one direction and has a first surface contact portion formed at an end portion thereof so as to be in surface contact with the skin;
A second surface contact portion formed on an extension of the first surface contact portion is formed at an end of the second surface contact portion, the second surface contact portion being formed on an extension of the first surface contact portion, A head having a guide portion formed obliquely in front of the two-side contact portion; And
And a third surface formed on an extension of the first surface contacting portion and formed to be in surface contact with the skin, wherein the third surface is formed integrally with the frame portion and is inclined in one direction behind the main blade in a shaving direction, A razor comprising a precision blade having a contact.

9. The method of claim 8,
Wherein the precision blade is formed to be shorter than the length of the main blade, and the third surface contact portion has an area narrower than an area of the first surface contact portion.

The method according to claim 1,
Wherein the blade unit is made of a ceramic material.