KR102655425B1 - Razor Cartridge - Google Patents

Abstract

Disclosed is a razor cartridge.
According to one embodiment of the present disclosure, at least one razor blade having a cutting edge; a seating base that accommodates at least one razor blade aligned in a first direction; a cap covering at least a portion of the seating base; and a plurality of comb elements, at least a portion disposed in front of the at least one razor blade, the plurality of comb elements extending in a second direction not perpendicular to the first direction toward the front of the seating base, the plurality of comb elements comprising: Provides a razor cartridge comprising an upper surface configured to define a shaving plane.

Description

Razor Cartridge {Razor Cartridge}

This disclosure relates to razor cartridges.

The content described in this section simply provides background information for the present disclosure and does not constitute prior art.

Recently, to emphasize masculinity or for stylistic reasons, shaving, which does not cut off all the body hair but leaves a certain length of body hair, has become popular. This is called stubble shaving, to distinguish it from a normal shaving in which all body hair is cut off or similar to it. Currently, various stubble razors for stubble shaving are sold on the market.

Some of the conventional stubble razors are configured to operate electrically. These conventional electric stubble razors provide a shaving function when connected by wires or when the battery is charged.

For this purpose, a conventional electric stubble razor includes electronic components such as a battery and a small motor inside. Accordingly, the conventional electric stubble razor has the disadvantage of being bulky and difficult to carry.

U.S. Patent Publication No. 2019-0077034 (hereinafter referred to as Patent Document 1), one of other conventional stubble razors, is configured to attach a trimming cover to a general wet razor.

Specifically, the razor shown in Patent Document 1 is configured so that it can be used as a general wet razor with the trimming cover removed, and then used as a stubble razor with the trimming cover installed.

Meanwhile, in the case of stubble shaving, cutting is performed on relatively long body hair. Accordingly, in stubble shaving, body hair can be cut in a relatively lying state compared to a regular shave. Additionally, stubble shaving has the characteristic that the shaving plane and the cutting edge of the razor blade are spaced relatively far apart. In other words, stubble shaving has different characteristics from regular shaving.

In other words, for effective stubble shaving, the stubble razor needs to be designed to reflect the characteristics of stubble shaving. However, since the stubble razor of Patent Document 1 also functions as a general wet razor, these characteristics of stubble shaving are not reflected. Therefore, there is a need to develop a new type of wet stubble razor that can provide effective stubble shaving.

U.S. Patent Publication No. 2019-0077034 (published on March 14, 2019)

Accordingly, the main purpose of the present disclosure is to provide a razor cartridge that can provide effective stubble shaving by well reflecting the characteristics of stubble shaving.

According to one embodiment of the present disclosure, at least one razor blade having a cutting edge; a seating base that accommodates at least one razor blade aligned in a first direction; a cap covering at least a portion of the seating base; and a plurality of comb elements, at least a portion disposed in front of the at least one razor blade, the plurality of comb elements extending in a second direction not perpendicular to the first direction toward the front of the seating base, the plurality of comb elements comprising: Provides a razor cartridge comprising an upper surface configured to define a shaving plane.

As described above, according to this embodiment, the razor cartridge is effective in providing effective stubble shaving.

1 is a perspective view of a razor cartridge according to an embodiment of the present disclosure.
Figure 2 is an exploded perspective view of a razor cartridge according to an embodiment of the present disclosure.
3 is a front view of a razor cartridge according to an embodiment of the present disclosure.
Figure 4 shows the razor cartridge of Figure 3 with the cap and a plurality of comb elements removed.
Figure 5 is a rear perspective view of a razor cartridge according to an embodiment of the present disclosure.
Figure 6 is a side view of a razor blade according to an embodiment of the present disclosure.
FIG. 7 is a cross-sectional view of a razor cartridge according to an embodiment of the present disclosure taken along line VII-VII of FIG. 3 .
FIG. 8 is a cross-sectional view of a razor cartridge according to an embodiment of the present disclosure taken along line VIII-VIII' of FIG. 3.
Figure 9 is an exemplary diagram showing body hair being cut by a horizontal razor blade disposed perpendicular to the shaving direction.
Figure 10 is an example diagram showing body hair being cut by an oblique razor blade arranged not perpendicular to the shaving direction.
Figure 11 is an exemplary diagram showing body hair being cut by a razor blade according to an embodiment of the present disclosure.
Figure 12 is a front view of a razor cartridge according to a second embodiment of the present disclosure.
Figure 13 is an exploded perspective view of a razor cartridge according to a second embodiment of the present disclosure.
Figure 14 is a perspective view of a razor cartridge according to a third embodiment of the present disclosure.
Figure 15 is an exploded perspective view of a razor cartridge according to a third embodiment of the present disclosure.
Figure 16 is a front view of a razor cartridge according to a third embodiment of the present disclosure.
17 and 18 show the razor cartridge of FIG. 16 with the cap and a plurality of comb elements removed.
FIG. 19 is a cross-sectional view of the razor cartridge according to the third embodiment of the present disclosure taken along the line ⅩⅨ-ⅩⅨ' of FIG. 16.
Figure 20 is a front view of a razor cartridge according to a fourth embodiment of the present disclosure.

Hereinafter, some embodiments of the present disclosure will be described in detail through illustrative drawings. When adding reference signs to components in each drawing, it should be noted that the same components are given the same reference numerals as much as possible even if they are shown in different drawings. Additionally, in describing the present disclosure, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present disclosure, the detailed description will be omitted.

In describing the components of the embodiment according to the present disclosure, symbols such as first, second, i), ii), a), and b) may be used. These codes are only used to distinguish the component from other components, and the nature, order, or order of the component is not limited by the code. In the specification, when a part is said to 'include' or 'have' a certain component, this means that it does not exclude other components but may further include other components, unless explicitly stated to the contrary. .

1 is a perspective view of a razor cartridge 10 according to an embodiment of the present disclosure.

Figure 2 is an exploded perspective view of the razor cartridge 10 according to an embodiment of the present disclosure.

1 and 2, a razor cartridge 10 may include a blade housing 12 and at least one shaving blade 110.

The blade housing 12 may form the outer shape of the razor cartridge 10 and may accommodate at least one razor blade 110 therein.

The blade housing 12 may include a receiving base 120, a cap 130, and a plurality of comb elements 140.

At least one razor blade 110 may have a cutting edge 112 for cutting body hair.

At least one razor blade 110 may be accommodated inside the blade housing 12 while being aligned in a first direction (d1). At this time, the first direction d1 may not be perpendicular to the shaving direction (SD). Here, the shaving direction (SD) refers to the direction in which the razor cartridge 10 moves when shaving. For example, the shaving direction (SD) may be parallel to the direction of the X-axis with respect to FIG. 1.

The razor cartridge 10 according to an embodiment of the present disclosure has a technical feature in that it provides effective stubble shaving by arranging at least one razor blade 110 diagonally. Detailed description in this regard is provided with reference to FIGS. 9 and 10 .

Referring again to FIGS. 1 and 2 , at least one razor blade 110 may include a bending blade or a welded blade. Bending blades and steel blades differ from straight blades, which do not include a bent area, in that they include a bent area.

Accordingly, the razor cartridge 10 according to an embodiment of the present disclosure does not require a spacer to space the cutting edge from the base member. Through this, the razor cartridge 10 can have a simpler structure. However, the present disclosure is not limited to this. For example, at least one razor blade 110 may include a flat blade.

The seating base 120 may accommodate at least one razor blade 110 aligned in the first direction d1.

The seating base 120 may include a plurality of receiving protrusions 122 for receiving at least one razor blade 110. The plurality of seating protrusions 122 may be arranged along the first direction d1 on one surface of the seating base 120 adjacent to at least one razor blade 110.

The plurality of seating protrusions 122 may support the base portion 114 of at least one razor blade 110.

Specifically, the base 114 may be disposed between the seating protrusion 122 disposed in front of the base 114 and the seating protrusion 122 disposed in the rear of the base 114, and each seating protrusion 122 can be supported by

In this way, at least one razor blade 110 can be assembled on the seating base 120 by being disposed in the space formed by the seating protrusions 122.

Meanwhile, the extension direction of the plurality of seating protrusions 122 may be substantially perpendicular to one surface of the seating base 120. However, the present disclosure is not limited to this.

For example, the extension direction of the plurality of seating protrusions 122 may extend in a direction that is not perpendicular to one surface of the seating base 120, depending on the direction in which the base portion 114 is accommodated on the seating base 120. there is.

The razor cartridge 10 according to an embodiment of the present disclosure has a plurality of seating protrusions 122 disposed on the seating base 120, and therefore does not require a separate spacer to separate adjacent razor blades. Therefore, the razor cartridge 10 according to an embodiment of the present disclosure can reduce the number of parts during manufacturing by injecting the seating base 120 and the seating protrusion 122 together, thereby providing a manufacturing advantage. .

The cap 130 may cover at least a portion of the seating base 120 while the seating base 120 accommodates at least one razor blade 110.

For example, a coupling hook 132 formed on one side of the cap 130 may be configured to hook-couple with one side of the seating base 120. However, the present disclosure is not limited to this, and the cap 130 and the seating base 120 may be configured to be coupled through other methods.

The cap 130 may support both ends of at least one razor blade 110. Through this, at least one razor blade 110 can be firmly maintained in the blade housing 12.

The plurality of comb elements 140 may extend toward the front of the seating base 120, and at least a portion of the plurality of comb elements 140 may be disposed in front of the at least one razor blade 110.

The plurality of comb elements 140 may align the user's body hair with the space between the comb elements 140 when shaving. Specifically, the plurality of comb elements 140 may include a head portion 141 formed at a free end of the plurality of comb elements 140.

The head portion 141 serves to align the user's body hair entering the cutting edge 112 from the front of the cutting edge 112. Through this, the body hair can contact the cutting edge 112 in an aligned state, and thus the hair can be cut more easily.

The head portion 141 may have a shape whose width becomes narrower toward the free end of the head portion 141. For example, the width of the fixed end of the head portion 141 may have a value of approximately 1.4 mm to 1.8 mm, and the width of the free end of the head portion 141 may have a value of approximately 0.57 mm to 0.77 mm. there is. However, the present disclosure is not limited to this.

Since the head portion 141 has a shape whose width becomes narrower toward the free end, the distance between neighboring head portions 141 may become farther toward the free end of the head portion 141. For example, the distance between the fixed ends of neighboring head parts 141 may have a value of approximately 2.7 mm to 3.1 mm, and the distance between the free ends of neighboring head parts 141 may have a value of approximately 3.5 mm to 4.1 mm. It can have a value of mm. However, the present disclosure is not limited to this.

Meanwhile, the plurality of comb elements 140 may extend toward the front of the seating base 120 in a second direction (d2) that is not perpendicular to the first direction (d1). At this time, the second direction d2 may be substantially parallel to the shaving direction SD.

The razor cartridge 10 according to an embodiment of the present disclosure has a technical feature in that the first direction d1 and the second direction d2 are not perpendicular to each other, so that body hair is cut diagonally. Detailed description in this regard is provided with reference to FIGS. 9 and 10 .

Referring again to FIGS. 1 and 2 , the plurality of comb elements 140 may include a bottom surface 142 and a top surface 144 .

The lower surface 142 is one surface of the comb element 140 adjacent to the seating base 120, and at least a portion of the lower surface 142 may be adjacent to the cutting edge 112. The upper surface 144 may face the lower surface 142 and may be spaced apart from the cutting edge 112.

The upper surface 144 may define a shaving plane (SP in FIG. 7) by contacting the user's skin. Accordingly, cutting of body hair by the cutting edge 112 can also be performed at a position spaced apart from the shaving plane. That is, stubble shaving can be achieved.

The plurality of comb elements 140 may be formed integrally with the cap 130. In this case, the plurality of comb elements 140 may extend from one side of the cap 130 and may have a continuous shape as a whole. However, the present disclosure is not limited to this.

For example, a plurality of comb elements 140 may be formed on seating base 120 or may be formed on both seating base 120 and cap 130. Detailed description in this regard is provided with reference to FIGS. 12 and 13.

The seating base 120 may additionally include a plurality of teeth 124.

The plurality of teeth 124 may be arranged to correspond to the positions of the plurality of comb elements 140 and may extend along the second direction d2.

The free ends of the plurality of teeth 124 may be in contact with the head portion 141 of the plurality of comb elements 140.

In this case, at least a portion of the lower surface 142 adjacent to the cutting edge 112 and the area of the seating base 120 facing at least a portion of the lower surface 142 have a plurality of receiving holes (16 in FIG. 7). It can be defined.

At least one razor blade 110 may penetrate these plurality of receiving holes 16 . The plurality of receiving holes 16 may provide sufficient space to accommodate the plurality of razor blades 110.

Meanwhile, to form the receiving hole 16, at least a portion of the lower surface 142 may at least partially surround the surrounding area of the razor blade 110. For this purpose, the lower surface 142 may have a stepped shape.

Figure 3 is a front view of the razor cartridge 10 according to an embodiment of the present disclosure.

FIG. 4 shows a state in which the cap 130 and the plurality of comb elements 140 are removed from the razor cartridge 10 of FIG. 3 .

Referring to FIGS. 3 and 4 , the first direction d1, which is the alignment direction of the razor blade 110, may not be perpendicular to the shaving direction SD.

Specifically, the angle Φ formed between the first direction d1 and the shaving direction SD may be 70 degrees to 89 degrees.

Through this diagonal arrangement of the razor blades 110, body hair can be effectively cut. Detailed description in this regard is provided with reference to FIGS. 9 and 10 .

Meanwhile, at least one razor blade 110 may include a plurality of razor blades 110 arranged in parallel with each other. As a result, the razor blade cartridge 10 can provide stubble shaving using multiple blades.

Each comb element 140 of the plurality of comb elements 140 may be formed as one piece.

Specifically, each comb element 140 may be formed as one piece from one side of the cap 130 from which each comb element 140 extends to the free end of the comb element 140. In this case, the upper surface 144 of each comb element 140 may have a continuous surface as a whole.

Specifically, the top surface 144 of each comb element 140 extends toward the front of the seating base 120, completely crossing over each cutting edge 112. Accordingly, when the razor cartridge 10 is viewed with the upper surface 144 facing front, the plurality of comb elements 140 may at least partially cover the space between the plurality of razor blades 110.

Accordingly, it is possible to prevent the user's skin from being excessively pressed into the space between the plurality of razor blades 110, thereby limiting direct contact between the cutting edge 112 of the razor blades 110 and the user's skin. You can. As a result, the safety problem of crushed skin being cut by the razor blade 110 can be minimized.

Meanwhile, in front of the frontmost razor blade 110 among the at least one razor blade 110, the space between each comb element 140 of the plurality of comb elements 140 does not overlap with the seating base 120. It may not be possible.

Accordingly, the space between each comb element 140 may be open in front of the foremost blade 110. Here, the frontmost razor blade 110 refers to the razor blade disposed most forward among the at least one razor blade 110.

Through this, the user's body hair can contact the frontmost razor blade 110 in an upright position without being disturbed by the comb element 140 and the seating base 120, thereby enabling effective hair cutting. A detailed description in this regard is provided with reference to FIG. 11 .

Figure 5 is a rear perspective view of the razor cartridge 10 according to an embodiment of the present disclosure.

Referring to FIG. 5, the blade housing 12 may include a rear side (13), a washing hole (14), and a handle connecting unit (126).

The rear surface 13 may be one surface of the blade housing 12 located behind the at least one razor blade 110.

At least one cleaning hole 14 may be formed on the rear surface 13 and may penetrate the rear surface 13. Additionally, at least one cleaning hole 14 may be arranged to correspond to the space between the comb elements 140.

Debris of body hair cut by the razor blade 110 can be washed away from the razor cartridge 10 through the cleaning hole 14 formed on the rear side 13.

The handle coupling portion 126 may be disposed on the other side of the seating base 120.

The handle coupling portion 126 may be configured to be coupled to a razor handle (not shown). Specifically, the handle coupling portion 126 may be pivotably coupled to the razor handle, but the present disclosure is not limited thereto.

Figure 6 is a side view of the razor blade 110 according to an embodiment of the present disclosure.

Specifically, Figure 6(a) shows a bending blade, and Figure 6(b) shows a steel blade.

Referring to FIGS. 6(a) and 6(b), the razor blade 110 according to an embodiment of the present disclosure may include a bending blade or steel blade including a bent area.

Specifically, at least one razor blade 110 may include a base portion 114 received in the seating base 120 and an edge portion 116 including a cutting edge 112.

The base 114 may be an area on the razor blade 110 supported by the seating protrusion 122 of the seating base 120.

The edge portion 116 extends from one end of the base portion 114 and may have a cutting edge 112 at one end of the edge portion 116 .

Referring to FIG. 6(a), the bending blade 110A may have a base portion 114A and an edge portion 116A formed as one body. Conversely, referring to FIG. 6(b), the steel blade 110B may be fixed by welding an edge portion 116B on one surface of the base portion 114B.

Each of the bases 114A and 114B of the bending blade 110A and the steel blade 110B may include bent areas 118A and 118B.

The razor cartridge 10 according to an embodiment of the present disclosure has a bending blade or a steel blade razor blade, and therefore does not require a spacer to separate the cutting edge from the base member.

By not including a spacer, the razor cartridge 10 can have a simpler structure, and the overall size of the razor cartridge 10 can also be reduced.

FIG. 7 is a cross-sectional view of the razor cartridge 10 according to an embodiment of the present disclosure taken along the line VII-VII' of FIG. 3. Here, the direction VII-VII' in FIG. 3 is perpendicular to the first direction d1.

FIG. 8 is a cross-sectional view of the razor cartridge 10 according to an embodiment of the present disclosure taken along the line VIII-VIII' of FIG. 3. Here, the direction VIII-VIII' of FIG. 3 is parallel to the second direction d2.

Referring to FIGS. 7 and 8 , the razor blade 110 may be accommodated on the seating base 120 so that the cutting edge 112 has a predetermined angle with respect to the shaving plane SP.

Specifically, referring to FIG. 7, the angle α formed between the extension direction EL of the cutting edge 112 and the shaving plane SP may be 10 degrees to 25 degrees, and preferably 13 degrees to 19 degrees. there is. The razor blade 110 may have optimal cutting force within the angular range of the cutting edge 112.

The base 114 may be supported by a plurality of seating protrusions 122. In this case, on a cross-section cut in a direction perpendicular to the first direction d1, the extension direction BL of the base portion 114 may not be parallel to the normal line PL of the shaving plane SP. Additionally, the extension direction BL of the base portion 114 may not be perpendicular to the second direction d2 along which the plurality of comb elements 140 extend.

In other words, the razor blade 110 may be accommodated on the seating base 120 with the base portion 114 slightly inclined with respect to the shaving plane SP. In this case, the angle β formed between the normal line PL of the shaving plane SP and the extending direction BL of the base 114 may be 5 degrees to 10 degrees, and preferably 7 degrees to 8 degrees. However, the present disclosure is not limited to this.

In stubble shaving, the hair is cut with the relatively long hair lying somewhat flat. Therefore, in stubble shaving, the ideal angle between the extension direction EL of the cutting edge 112 and the shaving plane may be different from general shaving.

Meanwhile, in order to implement an angle of the cutting edge 112 suitable for stubble shaving, if a razor blade different from a razor blade (not shown) used in a general razor is manufactured and used separately, additional costs may be incurred in manufacturing the razor blade.

Accordingly, the razor blade 110 used in the stubble razor may be the same as the razor blade used in a general razor in order to prevent such additional costs from occurring.

The razor cartridge 10 according to an embodiment of the present disclosure allows the base portion 114 to be received in a state inclined with respect to the normal line PL of the shaving plane SP, so that even if a razor blade used in a general razor is used, It has the advantage of being able to implement an angle of the cutting edge 112 suitable for black shaving. In this case, the angle between the base portion 114 and the edge portion 116 may be 100 degrees to 120 degrees, and preferably 105 degrees to 115 degrees, similar to a razor blade used in a general razor.

However, in order to simplify the seating structure of the razor blade 110, the razor cartridge 10 according to an embodiment of the present disclosure may use a razor blade that is more bent than a razor blade used in a general razor. In this case, the angle between the base portion 114 and the edge portion 116 may be 90 degrees to 110 degrees, and preferably 95 degrees to 105 degrees.

Each cutting edge 112 of the plurality of razor blades 110 may have the same protrusion value with respect to the shaving plane SP.

The protrusion value of each cutting edge 112 is defined as the distance between each cutting edge 112 and the upper surface 144. However, when a plurality of razor blades 110 are provided, the protrusion value of the cutting edge 112 is the cutting edge plane CP, which is a virtual plane created by the cutting edges 112 of the plurality of razor blades 110, and the upper surface 144. It can also be defined as the distance between

Each cutting edge 112 of the plurality of razor blades 110 may have a negative protrusion value with respect to the shaving plane SP. At this time, the protrusion value of the cutting edge 112 may be set differently depending on the length of body hair to be left through stubble shaving.

In this regard, various types of caps 130 with different distances between the cutting edge 112 and the upper surface 144 may be provided. For example, a 3 mm cap 130 having a distance between the cutting edge 112 and the upper surface 144 of 3 mm and a 5 mm cap 130 having a distance between the cutting edge 112 and the upper surface 144 of 5 mm. can be provided.

The cap 130 may be configured to be attachable to and detachable from the seating base 120 so as to be replaceable. In this case, the user can separate the existing cap 130 from the seating base 120 and mount the cap 130 corresponding to the desired hair length on the seating base 120.

Meanwhile, in order to achieve an appropriate stubble shave, the user's skin and the cutting edge 112 need to be spaced apart by a predetermined distance during shaving. Accordingly, the distance between the upper surface 144 and the cutting edge plane (CP) may be 1.0 mm or more. In this case, the cutting edge 112 may have a negative protrusion value of -1.0 mm or less.

In a multi-blade razor, there needs to be a predetermined distance between one cutting edge and another cutting edge. Accordingly, in the plurality of razor blades 110, the distance L between one cutting edge 112 and the neighboring cutting edge 112 may be 1.0 mm or more.

Meanwhile, the distance (L) between one cutting edge 112 and the neighboring cutting edge 112 is designed to have different values depending on the distance (M) between the upper surface 144 and the cutting edge plane (CP). It can be.

For example, in the plurality of razor blades 110, the distance L between one cutting edge 112 and the neighboring cutting edge 112 is the distance between the upper surface 144 and the cutting edge plane CP ( It can be larger than M).

In stubble shaving, the hair cut by the cutting edge has a relatively long length compared to the case of general shaving. Meanwhile, in some cases, the body hair may not be cut by the cutting edge and may be directed to the subsequent cutting edge while lying down. In this regard, body hair having a long length may take a relatively long time to stand up again after being laid down by the cutting edge.

If the distance (L) between one cutting edge 112 and the neighboring cutting edge 112 has a relatively small value compared to the distance (M) between the upper surface 144 and the cutting edge plane (CP) , body hair that has been laid down without being cut by the cutting edge 112 at the front end may reach the cutting edge 112 at the rear end before it is sufficiently erected. In this case, since cutting is performed while the hair is lying down, it is difficult to properly cut using the cutting edge 112 at the rear end.

In the razor cartridge 10 according to an embodiment of the present disclosure, the distance (L) between one cutting edge 112 and the neighboring cutting edge 112 is between the upper surface 144 and the cutting edge plane (CP). By configuring it to be greater than the distance (M), sufficient time can be provided for the body hair that is not cut by the front cutting edge 112 and lies down to reach the rear cutting edge 112. As a result, effective stubble shaving using multiple blades is possible.

Figure 9 is an example diagram showing body hair (H) being cut by a horizontal blade (HB) disposed perpendicular to the shaving direction.

Figure 10 is an example diagram showing body hair (H) being cut by a diagonal blade (DB) disposed not perpendicular to the shaving direction.

Specifically, FIGS. 9(a) and 10(a) show the state in which body hair H has started to be cut by the horizontal razor blade (HB) and the diagonal razor blade (DB), respectively, and FIGS. 9(b) and FIG. 10(b) shows a state in which about half of the body hair (H) has been cut by a horizontal razor blade (HB) and an oblique razor blade (DB), respectively.

9 and 10, it is assumed that the horizontal razor blade HB moves in the positive X-axis direction.

In addition, in the description of FIGS. 9 and 10, the upper region, lower region, left region, and right region of the body hair H are defined based on FIGS. 9 and 10, respectively. For example, the upper area of the body hair (H) refers to an area located in the negative X-axis direction on the body hair (H).

Since the razor cartridge 10 according to an embodiment of the present disclosure is for stubble shaving, it cuts relatively long body hair. These long body hairs have a weak erection force, so they are easily laid down by a razor blade.

Therefore, when stubble shaving, only the front part of the hair is cut, the remaining rear part is not cut, and a phenomenon may occur in which the hair is laid down by the razor blade. In this case, the razor blade may be used with body hair embedded in it, and a problem may arise where the hair is torn off without being cut. This can be problematic as it not only reduces cutting efficiency but also causes discomfort to the user.

In this respect, the diagonal arrangement of the razor blade 110 has the advantage of minimizing the problem of body hair tearing. Below, the principle of reducing cutting force according to the diagonal arrangement of the razor blade 110 will be described in detail.

Referring to FIGS. 9(a) and 9(b), when the body hair (H) begins to be cut by the horizontal razor blade (HB), the upper area of the body hair (H) is evenly contacted with the horizontal razor blade (HB). You can.

Therefore, the cutting force by the horizontal razor blade (HB) can be evenly transmitted in the upper area of the body hair (H), and the cutting of the body hair (H) by the cutting force of the horizontal razor blade (HB) is distributed in the upper area of the body hair (H). It can be done. That is, the degree of incision made in each area of the body hair (H) may be small.

Meanwhile, cutting of body hair (H) can be accelerated as more incisions are made in the area of body hair (H) where cutting is performed. In other words, as more incisions are made in the area of the hair H to be cut, the amount of cutting force required to cut the hair H to the same degree may decrease.

In this respect, when cutting body hair H from the state of FIG. 9(a) to the state of FIG. 9(b) using the horizontal razor blade HB, a relatively large cutting force may be required.

On the other hand, referring to FIGS. 10(a) and 10(b), when the body hair H begins to be cut by the diagonal razor blade DB, the left area of the upper area of the body hair H is preferentially cut with the diagonal razor blade DB. It may come into contact with the razor blade (DB).

Therefore, the cutting force by the diagonal razor blade (DB) can be transmitted intensively in the left area of the upper area of the body hair (H), and the cutting of the body hair (H) by the cutting force of the diagonal razor blade (DB) can cause the hair (H) to be cut. It can be done intensively in the left area of the upper area.

As described above, cutting of body hair (H) can be accelerated as more incisions are made in the area of body hair (H) where cutting is performed. In this respect, when cutting the body hair H from the state of FIG. 10(a) to the state of FIG. 10(b) using an oblique razor blade DB, a relatively small cutting force may be required.

Specifically, the cutting force of the diagonal razor blade (DB) is concentrated in the left area of the upper area of the body hair (H), so a relatively large incision may occur, and the incision in the left area of the body hair (H) is made with the diagonal razor blade (DB). It can help in cutting the right area of the hair (H) that is subsequently contacted.

Accordingly, the razor cartridge 10 according to an embodiment of the present disclosure can provide more effective stubble shaving by arranging the razor blades 110 diagonally.

Figure 11 is an exemplary diagram showing body hair H being cut by the razor blade 110 according to an embodiment of the present disclosure.

Specifically, Figure 11(a) shows the state before the body hair H is introduced into the razor cartridge 10, and Figure 11(b) shows the state before the body hair H is introduced into the razor cartridge 10 and the razor blade ( 110) is shown.

In FIGS. 11(a) and 11(b), for convenience of explanation, the razor cartridge 10 and body hair H are shown through the same cross section as in FIG. 8.

Referring to FIG. 11(a), body hair H may be aligned by a plurality of comb elements 140 while being introduced into the razor cartridge 10.

Specifically, body hair H may be introduced into the space between the plurality of comb elements 140 and may be aligned along the second direction d2, which is the extension direction of the plurality of comb elements 140.

Meanwhile, since the body hair H before being introduced into the razor cartridge 10 is not in contact with the razor cartridge 10, it can be maintained in an upright state.

Referring to FIG. 11(b), body hair H aligned by the plurality of comb elements 140 may enter the razor blade 110 while maintaining an upright position.

3 and 4, in front of the frontmost razor blade 110 of the at least one razor blade 110, the space between each comb element 140 of the plurality of comb elements 140 is a seating base. It may not overlap with (120).

Accordingly, the space between each comb element 140 can be open in front of the frontmost razor blade 110, and the body hair H can contact the frontmost razor blade 110 in an upright state. there is.

Body hair H can be cut more easily when in contact with the razor blade 110 in an upright state rather than in a lying down state. Therefore, the razor cartridge 10 according to an embodiment of the present disclosure can provide more effective stubble shaving.

The second embodiment of the present disclosure shown in FIGS. 12 and 13, which will be described later, is an embodiment of the present disclosure shown in FIGS. 1 to 11 in that a plurality of comb elements are formed separately on the seating base and the cap. has a difference with Hereinafter, the description will focus on the distinctive features according to the second embodiment of the present disclosure, and repeated descriptions of configurations that are substantially the same as one embodiment of the present disclosure will be omitted.

12 and 13, the razor cartridge 20 may include a blade housing 22 and at least one razor blade 210.

Blade housing 22 may include a seating base 220, a cap 230, and a plurality of comb elements 240.

At least one razor blade 210 may be accommodated inside the blade housing 22 while being aligned in the first direction d1. At this time, the first direction d1 may not be perpendicular to the shaving direction SD.

At least one razor blade 210 may include a bending blade or a steel blade.

The seating base 220 may accommodate at least one razor blade 210 aligned in the first direction d1.

The cap 230 may cover at least a portion of the seating base 220 while the seating base 220 accommodates at least one razor blade 210 .

The cap 230 may support both ends of at least one razor blade 210, or the seating base 220 may support both ends of at least one razor blade 210 and be located behind the at least one razor blade 210. ) and can be fixed. Through this, at least one razor blade 210 can be firmly maintained in the blade housing 22.

The plurality of comb elements 240 may extend toward the front of the seating base 220, and at least a portion of the plurality of comb elements 240 may be disposed in front of the at least one razor blade 210.

The plurality of comb elements 240 may align the user's body hair with the space between the comb elements 240 when shaving. The plurality of comb elements 240 may include a head portion 241 formed at a free end of the plurality of comb elements 240.

The head portion 241 may have a tapered shape whose width becomes narrower toward the free end of the head portion 241. For example, the width of the fixed end of the head portion 241 may have a value of approximately 1.4 mm to 1.8 mm, and the width of the free end of the head portion 241 may have a value of approximately 0.57 mm to 0.77 mm. there is. However, the present disclosure is not limited to this.

Since the head portion 241 has a shape whose width becomes narrower toward the free end, the distance between neighboring head portions 241 may become farther toward the free end of the head portion 241. For example, the distance between the fixed ends of neighboring head parts 241 may have a value of approximately 2.7 mm to 3.1 mm, and the distance between the free ends of neighboring head parts 241 may have a value of approximately 3.5 mm to 4.1 mm. It can have a value of mm. However, the present disclosure is not limited to this.

Meanwhile, the plurality of comb elements 240 may extend toward the front of the seating base 220 in a second direction (d2) that is not perpendicular to the first direction (d1). At this time, the second direction d2 may be substantially parallel to the shaving direction SD.

The plurality of comb elements 240 may include an upper surface 244 . The top surface 244 of the comb element 240 may be spaced apart from the cutting edge 212 .

The upper surface 244 of the comb element 240 may define a shaving plane by contacting the user's skin. Accordingly, cutting of body hair by the cutting edge 212 can also be performed at a location spaced apart from the shaving plane.

The plurality of comb elements 240 according to the second embodiment of the present disclosure may include a plurality of front combs 243, a plurality of middle combs 247, and a plurality of rear combs 245. In this case, the upper surface 244 of the plurality of comb elements 240 includes a first top surface formed on the plurality of front combs 243 and a second top surface formed on the plurality of intermediate combs 247. ), and a third top surface formed on the plurality of rear combs 245, and the shaving plane may be defined by the first top surface, the second top surface, and the third top surface.

Each cutting edge 212 of the plurality of razor blades 210 may have the same protrusion value with respect to the shaving plane. For example, the protrusion value of the cutting edge 212 may be -1.0 mm, but the present disclosure is not limited thereto.

Meanwhile, each of the plurality of front combs 243, the plurality of middle combs 247, and the plurality of rear combs 245 may protrude more than 3.6 mm from one surface of the seating base 220. In this case, the razor blade 210 ) The protrusion value of the cutting edge 212 may be -1.0 mm. The protruding heights of the plurality of front combs 243, the plurality of middle combs 247, and the plurality of rear combs 245 may be the same, but the present disclosure is not limited thereto.

A plurality of front combs 243 may be formed on the seating base 220 in front of at least one razor blade 210 and may extend in the second direction d2.

The plurality of front combs 243 may be areas disposed forward on the plurality of comb elements 240 and may include at least a portion of the upper surface 244 .

A plurality of intermediate combs 247 may be formed on the seating base 220 between the plurality of razor blades 210. Through this, it is possible to prevent the user's skin from being excessively pressed against the space between the plurality of razor blades 210. As a result, the safety problem of the user's crushed skin being cut by the razor blade 210 can be minimized.

The plurality of intermediate combs 247 may be an area disposed in the middle of the plurality of comb elements 240, and may be arranged to correspond to the position of each front comb 243 of the plurality of front combs 243.

The plurality of front combs 243 and the plurality of middle combs 247 may be formed by injection molding on the seating base 220. In this case, the plurality of front combs 243 and the plurality of intermediate combs 247 may be formed integrally with the seating base 220.

A plurality of rear combs 245 may be formed on the cap 230 at the rear of at least one razor blade 210 and may extend in the second direction d2.

The plurality of rear combs 245 may be an area disposed rearward on the plurality of comb elements 240, and the plurality of rear combs 245 are located at the positions of each front comb 243 of the plurality of front combs 243. It can be arranged to correspond.

Meanwhile, since the plurality of front combs 243 are formed on the seating base 220, the space between each comb element 240 may be open in front of the frontmost razor blade 210.

Specifically, the plurality of front combs 243 may be formed on the seating base 220 so that the space between each comb element 240 is open in front of the frontmost razor blade 210.

Through this, the user's body hair can contact the frontmost razor blade 210 in an upright position without being disturbed by the comb element 240, thereby enabling effective cutting of body hair.

Meanwhile, the plurality of intermediate combs 247 are necessary only when the razor cartridge 20 includes a plurality of razor blades 210. Accordingly, when the razor cartridge 20 includes only one razor blade 210, the shaving plane can be defined only by the first upper surface and the third upper surface. In this case, the protrusion value of the cutting edge 212 may be -1.0 mm or less.

12 and 13, the plurality of comb elements 240 are shown to include a front comb 243, a middle comb 247, and a rear comb 245, but the present disclosure is not limited thereto.

For example, the plurality of comb elements 240 may include only a front comb 243, without a rear comb 245, or only a front comb 243 and a middle comb 247.

When the plurality of comb elements 240 include only the front comb 243 without the rear comb 245, the shaving plane is located behind the first upper surface formed on the front comb 243 and the at least one razor blade 210. It may be defined by the upper surface of the cap 230. In this case, the protrusion value of the cutting edge 212 may be -1.0 mm or less.

When the plurality of comb elements 240 includes only the front comb 243 and the middle comb 247, the shaving plane includes a first upper surface formed on the front comb 243, a second upper surface formed on the middle comb 247, and It may be defined by the upper surface of the cap 230 located behind at least one razor blade 210. In this case, the protrusion value of the cutting edge 212 may be -1.0 mm or less.

The third embodiment of the present disclosure shown in FIGS. 14 to 19, which will be described later, is different from the embodiment of the present disclosure shown in FIGS. 1 to 11 in that the free ends of the plurality of comb elements are arranged diagonally. has Hereinafter, the description will focus on the distinctive features according to the third embodiment of the present disclosure, and repeated descriptions of configurations that are substantially the same as those of one embodiment of the present disclosure will be omitted.

Figure 14 is a perspective view of a razor cartridge 30 according to a third embodiment of the present disclosure.

Figure 15 is an exploded perspective view of the razor cartridge 30 according to the third embodiment of the present disclosure.

14 and 15, the razor cartridge 30 may include a blade housing 32 and at least one razor blade 310.

Blade housing 32 may include a seating base 320, a cap 330, and a plurality of comb elements 340.

At least one razor blade 310 may be accommodated inside the blade housing 32 while being aligned in the first direction d1. At this time, the first direction d1 may not be perpendicular to the shaving direction SD. That is, at least one razor blade 310 according to the third embodiment of the present disclosure may be arranged diagonally.

At least one razor blade 310 may include a bending blade or a steel blade.

The seating base 320 may accommodate at least one razor blade 310 aligned in the first direction d1.

The seating base 320 may include a plurality of seating protrusions 322 for accommodating at least one razor blade 310. A plurality of seating protrusions 322 may be disposed along the first direction d1 on one surface of the seating base 320 adjacent to at least one razor blade 310.

The plurality of seating protrusions 322 may support the base 114 of at least one razor blade 310.

Specifically, the base 314 may be disposed between the seating protrusion 322 disposed in front of the base 314 and the seating protrusion 322 disposed in the rear of the base 314, and each seating protrusion 322 can be supported by

The cap 330 may cover at least a portion of the seating base 320 while the seating base 320 accommodates at least one razor blade 310 .

The plurality of comb elements 340 may extend toward the front of the seating base 320, and at least a portion of the plurality of comb elements 340 may be disposed in front of the at least one razor blade 310.

The plurality of comb elements 340 may align the user's body hair with the space between the comb elements 340 when shaving. The plurality of comb elements 340 may include a head portion 341 formed at a free end of the plurality of comb elements 340.

The razor cartridge 30 according to the third embodiment of the present disclosure is a first virtual device in which the free ends of the plurality of comb elements 340, for example, the free ends of the head portion 341, are not perpendicular to the shaving direction SD. It has a technical characteristic of being placed on a straight line (first imaginary straight line, IL1). That is, the free ends of the plurality of comb elements 340 according to the third embodiment of the present disclosure may be arranged diagonally. A detailed description in this regard is described with reference to FIG. 16.

Meanwhile, the plurality of comb elements 340 may extend toward the front of the seating base 320 in a second direction (d2) that is not perpendicular to the first direction (d1). At this time, the second direction d2 may be substantially parallel to the shaving direction SD.

The plurality of comb elements 340 may include a lower surface 342 and an upper surface 344.

The lower surface 342 is one surface of the comb element 340 adjacent to the seating base 320, and at least a portion of the lower surface 342 may be adjacent to the cutting edge 312. The upper surface 344 may face the lower surface 342 and may be spaced apart from the cutting edge 312.

The upper surface 344 may define a shaving plane by contacting the user's skin. Accordingly, cutting of body hair by the cutting edge 312 can also be performed at a location spaced apart from the shaving plane. That is, stubble shaving can be achieved.

The plurality of comb elements 340 may be formed integrally with the cap 330. In this case, the plurality of comb elements 340 may extend from one side of the cap 330 and may have a continuous shape as a whole.

However, the present disclosure is not limited to this, and the comb element 340 according to the third embodiment of the present disclosure, similar to the second embodiment of the present disclosure, includes a front comb (not shown) and a middle comb (not shown). , and a rear comb (not shown) may be combined.

The seating base 320 may additionally include a plurality of teeth 324.

The plurality of teeth 324 may be arranged to correspond to the positions of the plurality of comb elements 340. Specifically, the free ends of the plurality of teeth 324 may extend along a second imaginary straight line (IL2) substantially parallel to the first imaginary straight line (IL1).

The free ends of the plurality of teeth 324 may be in contact with the head portion 341 of the plurality of comb elements 340.

In this case, at least a portion of the lower surface 342 adjacent to the cutting edge 312 and an area of the seating base 320 facing at least a portion of the lower surface 342 may define a plurality of receiving holes (36 in FIG. 19). there is.

At least one razor blade 310 may penetrate these plurality of receiving holes 36 . The plurality of receiving holes 36 may provide sufficient space to accommodate the plurality of razor blades 310.

Meanwhile, to form the receiving hole 36, at least a portion of the lower surface 342 may at least partially surround the surrounding area of the razor blade 310. To this end, the lower surface 342 may have a stepped shape.

Referring to FIG. 15, the razor cartridge 30 according to the third embodiment of the present disclosure may additionally include a plurality of clips (350) and a trimming blade (360).

A plurality of clips 350 may support both ends of at least one razor blade 310.

The plurality of clips 350 may include a retaining portion 352, a first leg portion 354, and a second leg portion 356.

The support portion 352 may provide support to the at least one razor blade 310 by contacting both ends of the at least one razor blade 110 .

The first leg portion 354 may extend from one end of the support portion 352, and the second leg portion 356 may extend from the other end of the support portion 352.

The first leg portion 354 and the second leg portion 356 are inserted into a through hole formed on the seating base 320 or are seated in a mounting groove formed on the seating base 320. It can be.

After the leg portions 354 and 356 are inserted into the through-hole or seated in the seating groove, the free ends of the leg portions 354 and 356 may be bent to surround the lower surface of the seating base 320. Through this, the clip 350 can be firmly fixed to the seating base 320.

After the clip 350 is fixed to the seating base 320, the cap 330 can be mounted on the seating base 320, and thus the assembly of the razor cartridge 30 can be completed.

Meanwhile, when supporting the razor blade 310 through the clip 350, there is no need to contact the cap 330 or the comb element 340 with the cutting edge 312 to support the razor blade 310. That is, when using the clip 350, the razor cartridge 30 can be designed so that a slight gap is formed between the cutting edge 312 and the cap 330 or the cutting edge 312 and the comb element 340. .

Through this gap formation, water pooling that may occur in the area near the cutting edge 312 can be minimized, and through this, rust on the razor blade 310 due to water pooling can also be minimized.

Additionally, the clip 350 may be in electrical contact with the razor blade 310, and thus the occurrence of rust on the razor blade 310 can be minimized. Specifically, the clip 350 may function as a sacrificial anode where corrosion occurs, and the razor blade 310 may function as a cathode that is protected from corrosion.

In addition, when the razor blade 310 is supported through the clip 350, when the cap 330 is separated from the seating base 320 for reasons such as replacement of the cap 330, the razor blade 310 is attached to the seating base 320. ) has the effect of preventing safety problems that deviate from the system.

The trimming blade 360 may be disposed behind the at least one razor blade 310 on the lower surface or side of the blade housing 32.

Trimming blade 360 may include a trimming edge 362. The trimming edge 362 can cut the user's body hair during trimming shaving.

The direction in which the trimming edge 362 faces may be opposite to the direction in which the cutting edge 312 of the razor blade 310 faces.

The trimming blade 360 may include a base portion 364 and an edge portion 356 extending from one end of the base portion 364, and the edge portion 362 may include a trimming edge 362.

The trimming blade 360 may be fixed to the blade housing 32 by having the base portion 364 supported by the seating base 320 and the cap 330. A detailed description of the fixing method of the trimming blade 360 is described with reference to FIG. 19.

Figure 16 is a front view of the razor cartridge 30 according to the third embodiment of the present disclosure.

Referring to FIG. 16, the first direction d1, which is the alignment direction of the razor blade 310, may not be perpendicular to the shaving direction SD.

Specifically, the first angle Φ1 formed between the first direction d1 and the shaving direction SD may be 70 degrees to 89 degrees. Through this diagonal arrangement of the razor blades 310, body hair can be effectively cut.

Meanwhile, at least one razor blade 310 may include a plurality of razor blades 310 arranged in parallel with each other. As a result, the razor blade cartridge 30 can provide stubble shaving using multiple blades.

Each comb element 340 of the plurality of comb elements 340 may be formed as one piece.

Specifically, each comb element 340 may be formed as one piece from one side of the cap 330 from which each comb element 340 extends to the free end of the comb element 340. In this case, the upper surface 344 of each comb element 340 may have a continuous surface as a whole.

Specifically, the top surface 344 of each comb element 340 extends toward the front of the seating base 320, completely crossing over each cutting edge 312. Accordingly, when the razor cartridge 30 is viewed with the upper surface 344 facing front, the plurality of comb elements 340 may at least partially cover the space between the plurality of razor blades 310.

Accordingly, it is possible to prevent the user's skin from being excessively pressed into the space between the plurality of razor blades 310, thereby limiting direct contact between the cutting edge 312 of the razor blades 310 and the user's skin. You can. As a result, the safety problem of crushed skin being cut by the razor blade 310 can be minimized.

Meanwhile, in front of the frontmost razor blade 310 among the at least one razor blade 310, the space between each comb element 340 of the plurality of comb elements 340 does not overlap with the seating base 320. It may not be possible.

Accordingly, the space between each comb element 340 may be open in front of the frontmost razor blade 310. Here, the frontmost razor blade 310 refers to the razor blade disposed most forward among the at least one razor blade 310.

Through this, the user's body hair can contact the frontmost razor blade 310 in an upright position without being disturbed by the comb element 340 and the seating base 320, thereby enabling effective hair cutting.

The free ends of the plurality of comb elements 340, for example, the free ends of the head portion 341, may be disposed on the first virtual straight line IL1 that is not perpendicular to the shaving direction SD. That is, the free ends of the plurality of comb elements 340 according to the third embodiment of the present disclosure may be arranged diagonally.

Since both the razor blade 310 and the free end of the comb element 340 are disposed diagonally, the cutting edge 312 of the razor blade 310 and the free end of the comb element 340 can be disposed closer to each other. As a result, shaving in a somewhat narrow area, such as mustache shaving, can be performed more smoothly.

In this regard, referring again to FIG. 3, when the razor blade 110 is disposed diagonally and the free end of the comb element 140 is disposed perpendicular to the shaving direction SD, the razor blade 110 is disposed relatively rearward. ), for example, in the area on the right side of the razor cartridge 10 with reference to FIG. 3, the distance between the razor blade 110 and the free end of the comb element 140 may become long. Accordingly, shaving in a somewhat narrow area, such as mustache shaving, may not be performed smoothly.

On the other hand, in the third embodiment of the present disclosure, the razor blade 310 and the free end of the comb element 340 are both disposed diagonally, so the distance between the cutting edge 312 and the free end of the comb element 340 is, For each comb element 340, the overall may be closer.

In this case, access to a narrow shaving area may be relatively advantageous, and in addition, since the distance between the hair and the cutting edge 312 is shortened, access of the hair to the cutting edge 312 may be facilitated. .

The first virtual straight line IL1 may be substantially parallel to the first direction d1. In this case, the distance between the cutting edge 312 and the free end of the comb element 340 can be made uniform for each comb element 340. At this time, the distance between the cutting edge 312 and the free end of the comb element 340 may be 2.0 mm to 6.0 mm, and preferably 4.0 mm.

By making the distance between the cutting edge 312 and the free end of the comb element 340 uniform, hair accessibility to all areas of the cutting edge 312 can be improved.

Meanwhile, when the first virtual straight line IL1 is parallel to the first direction d1, the second angle Φ2 formed between the first virtual straight line IL1 and the shaving direction SD is equal to the first direction d1. It may have the same value as the first angle Φ1, which is the angle formed by the shaving direction SD. Accordingly, the second angle Φ2 may be 70 to 89 degrees, similar to the first angle Φ1.

However, the present disclosure is not limited to this, and the first virtual straight line IL1 may not be parallel to the first direction d1. That is, the first virtual straight line IL1 and a straight line parallel to the first direction d1 may form a predetermined angle.

If the first virtual straight line IL1 and a straight line parallel to the first direction d1 intersect on the left side of the razor cartridge 30 with reference to FIG. 16, between the cutting edge 312 and the free end of the comb element 340 The distance can become increasingly further from left to right.

Conversely, if the first virtual straight line IL1 and a straight line parallel to the first direction d1 intersect on the right side of the razor cartridge 30 with respect to FIG. 16, the freedom of the cutting edge 312 and the comb element 340 The distance between stages can become increasingly closer from left to right.

Meanwhile, in FIG. 16, the free ends of the plurality of comb elements 340 are illustrated as being disposed on a single straight line, but the present disclosure is not limited thereto. For example, the profile formed by the free ends of the plurality of comb elements 340 may include at least a portion of a curved area, or may include a plurality of straight areas with different slopes.

FIGS. 17 and 18 show a state in which the cap 330 and the plurality of comb elements 340 are removed from the razor cartridge 30 of FIG. 16.

Specifically, FIGS. 17(a) and 18(a) show front views of the razor cartridge 30 with the cap 330 and the plurality of comb elements 340 removed, and FIGS. 17(b) and 18 (b) shows a bottom view of the razor cartridge 30 with the cap 330 and the plurality of comb elements 340 removed.

17 and 18 show modified examples of the fixing method of the clip 350 according to the third embodiment of the present disclosure.

17(a) and 17(b), one of the two leg parts 354 and 356 of the clip 350 is inserted into the through hole and the other leg part is seated in the seating groove. It is shown.

In one modification, the first leg portion 354 may be inserted into a first through hole 326 formed on both sides of the seating base 320. The first through hole 326 may be formed behind the last razor blade 310 on both sides of the seating base 320.

At least a portion of the second leg portion 356 may be seated in a mounting groove 327 formed on both sides of the seating base 320. The seating groove 327 may be formed in front of the first through hole 326, for example, in the front area of the seating base 320.

When the first leg portion 354 is inserted into the first through hole 326, the free end of the first leg portion 354 may be bent to surround the lower surface of the seating base 320. Additionally, when at least a portion of the second leg portion 356 is seated in the seating groove 327, the free end of the second leg portion 356 may be bent to surround the lower surface of the seating base 320.

Meanwhile, in FIGS. 17(a) and 17(b), the first leg portion 354 is shown to be inserted into the through hole and at least a portion of the second leg portion 356 is shown to be seated in the seating groove. The disclosure is not limited to this.

For example, the second leg portion 356 may be inserted into the through hole and at least a portion of the first leg portion 354 may be configured to be seated in the seating groove. In this case, the through hole may be formed in front of the frontmost razor blade 310 on both sides of the seating base 320, and the seating groove may be formed behind the through hole, for example, in the rear area of the seating base 320. there is.

18(a) and 18(b), another modified example is shown in which both leg portions 354 and 356 of the clip 350 are inserted into the through hole.

The first leg portion 354 may be inserted into the first through hole 326 formed on both sides of the seating base 320. The first through hole 326 may be formed behind the last razor blade 310 on both sides of the seating base 320.

The second leg portion 356 may be inserted into a second through hole 328 formed on both sides of the seating base 320. The second through hole 328 may be formed in front of the frontmost razor blade 310 on both sides of the seating base 320.

When the first leg portion 354 is inserted into the first through hole 326, the free end of the first leg portion 354 may be bent to surround the lower surface of the seating base 320. Additionally, when the second leg portion 356 is inserted into the second through hole 328, the free end of the second leg portion 356 may be bent to surround the lower surface of the seating base 320.

The modifications shown in FIGS. 17 and 18 are only some of the various modifications of the clip 350 according to the third embodiment of the present disclosure. Accordingly, the method of fixing the clip 350 according to the third embodiment of the present disclosure is not limited to the modified examples shown in FIGS. 17 and 18.

For example, both the first leg portion 354 and the second leg portion 356 may be configured to be seated in the seating groove. In this case, two seating grooves may be formed in the front and rear areas of the seating base 320, respectively.

FIG. 19 is a cross-sectional view of the razor cartridge 30 according to the third embodiment of the present disclosure taken along the line ⅩⅨ-ⅩⅨ' of FIG. 16.

Each cutting edge 312 of the plurality of razor blades 310 may have the same protrusion value with respect to the shaving plane SP.

Each cutting edge 312 of the plurality of razor blades 310 may have a negative protrusion value with respect to the shaving plane SP. At this time, the protrusion value of the cutting edge 312 may be set differently depending on the length of body hair to be left through stubble shaving.

In this regard, various types of caps 330 may be provided with different distances between the cutting edge 312 and the upper surface 344. For example, a 3 mm cap 330 with a distance between the cutting edge 312 and the upper surface 344 of 3 mm and a 5 mm cap 330 with a distance between the cutting edge 312 and the upper surface 344 of 5 mm. can be provided.

The cap 330 may be configured to be attachable to and detachable from the seating base 320 so as to be replaceable. In this case, the user can separate the existing cap 330 from the seating base 320 and mount the cap 330 corresponding to the desired hair length on the seating base 320.

Meanwhile, in order to achieve an appropriate stubble shave, the user's skin and the cutting edge 312 need to be spaced apart by a predetermined distance during shaving. Accordingly, the distance between the upper surface 344 and the cutting edge plane (CP) may be 1.0 mm or more. In this case, the cutting edge 312 may have a negative protrusion value of -1.0 mm or less.

In order to prevent water pooling in the space between the comb element 340 and the cutting edge 312 or rust on the razor blade 310 due to this, the lower surface of the cutting edge 312 and the adjacent comb element 340 (342) may be spaced apart by a predetermined distance (N). The distance (N) between the cutting edge 312 and the adjacent lower surface 342 may vary depending on the type of cap 330.

For example, in the case of a 2 mm cap or a 3 mm cap, the distance (N) between the cutting edge 312 and the adjacent lower surface 342 may be 0.45 mm to 0.55 mm, preferably 0.50 mm. .

Additionally, in the case of a 1 mm cap, the distance (N) between the cutting edge 312 and the adjacent lower surface 342 may be 0.1 mm to 0.3 mm, and preferably 0.2 mm.

Additionally, in the case of a 5 mm cap, the distance (N) between the cutting edge 312 and the adjacent lower surface 342 may be 1.65 mm to 2.65 mm, and preferably 2.15 mm.

However, the present disclosure is not limited to this, and for various types of caps 330, the distance N between the cutting edge 312 and the adjacent lower surface 342 may have a value outside the above-described range.

Meanwhile, the trimming blade 360 may be supported between the seating base 320 and the cap 330. For example, both sides of the base 364 of the trimming blade 360 are supported by the rear end area of the seating base 320 and the rear end area of the cap 330, or the upper surface of the seating base 320 and the cap ( It can be supported by the lower surface of 330, so that the trimming blade 360 can be fixed to the blade housing 32. At this time, the direction in which the trimming edge 362 faces may be opposite to the direction in which the cutting edge 312 of the razor blade 310 faces. For example, the trimming edge 362 may face the lower surface of the seating base 320.

To fix the trimming blade 360, place the trimming blade 360 on the rear area of the seating base 320 or the upper surface of the seating base 320, and then simply mount the cap 330 on the seating base 320. It can be implemented by doing. Therefore, the razor cartridge 30 according to the third embodiment of the present disclosure has the effect of fixing the trimming blade 360 to the blade housing 32 without a separate fixing process or a separate fixing member.

However, the present disclosure is not limited to this, and the trimming blade 360 may be fixed to the blade housing 32 through methods other than those described above. For example, the trimming blade 360 may be fixed to the blade housing 32 using a separate fixing member, or through a method such as adhesion or fusion.

The fourth embodiment of the present disclosure shown in FIG. 20, which will be described later, differs from the embodiment of the present disclosure shown in FIGS. 1 to 11 in that at least one razor blade is aligned parallel to the longitudinal direction of the seating base. has Hereinafter, the description will focus on the distinctive features according to the fourth embodiment of the present disclosure, and repeated descriptions of configurations that are substantially the same as those of one embodiment of the present disclosure will be omitted.

Figure 20 is a front view of the razor cartridge 40 according to the fourth embodiment of the present disclosure.

Referring to FIG. 20 , the first direction d1 in which the at least one razor blade 410 is aligned may be parallel to the longitudinal direction, which is the direction in which the seating base 420 extends. Additionally, the second direction d2 in which the plurality of comb elements 440 extend may not be perpendicular to the longitudinal direction of the seating base 420.

Here, the longitudinal direction of the seating base 420 refers to the direction in which the seating base 420 extends. For example, the longitudinal direction of the seating base 420 may be parallel to the Y-axis with respect to FIG. 20 .

The razor cartridge 40 according to the fourth embodiment of the present disclosure has a technical feature in that a plurality of comb elements 440, rather than a razor blade 410, are arranged diagonally.

In this case, body hair entering between the plurality of comb elements 440 may be aligned by the plurality of comb elements 440. At this time, the body hair may be aligned in the second direction d2 by the plurality of comb elements 440.

Body hair aligned in the second direction d2 may contact at least one razor blade 410 diagonally, thereby enabling effective stubble shaving.

The above description is merely an illustrative explanation of the technical idea of the present embodiment, and those skilled in the art will be able to make various modifications and variations without departing from the essential characteristics of the present embodiment. Accordingly, the present embodiments are not intended to limit the technical idea of the present embodiment, but rather to explain it, and the scope of the technical idea of the present embodiment is not limited by these examples. The scope of protection of this embodiment should be interpreted in accordance with the claims below, and all technical ideas within the equivalent scope should be interpreted as being included in the scope of rights of this embodiment.

10: Razor cartridge 12: Blade housing
14: cleaning hole 110: razor blade
112: cutting edge 114: base
116: Edge portion 120: Seating base
122: Seating protrusion 124: Teeth
130: cap 140: comb element
141: head 142: bottom
144: upper surface 243: front comb
245: rear comb 247: middle comb
350: Clip 360: Trimming blade
SP: shaving plane PL: normal to shaving plane
BL: Extension direction of the base EL: Extension direction of the cutting edge
CP: cutting edge plane

Claims (24)

at least one shaving blade having a cutting edge;
a receiving base receiving the at least one razor blade aligned in a first direction;
a cap covering at least a portion of the seating base; and
A plurality of comb elements, at least a portion of which is disposed in front of the at least one razor blade, extending in a second direction not perpendicular to the first direction toward the front of the seating base. Includes comb elements,
The plurality of comb elements include a top surface configured to define a shaving plane,
A razor cartridge, wherein free ends of the plurality of comb elements are disposed on a first imaginary straight line that is not perpendicular to the shaving direction. According to paragraph 1,
A razor cartridge, characterized in that the first direction is not perpendicular to the shaving direction. According to paragraph 2,
A razor cartridge, characterized in that the angle formed between the first direction and the shaving direction is 70 degrees to 89 degrees. According to paragraph 3,
A razor cartridge, characterized in that the angle formed between the extending direction of the cutting edge and the shaving plane is 10 degrees to 25 degrees. According to paragraph 1,
A razor cartridge, characterized in that the first direction is parallel to a longitudinal direction, which is an extension direction of the seating base. delete According to paragraph 1,
A razor cartridge, characterized in that the first virtual straight line is parallel to the first direction. delete According to paragraph 1,
A razor cartridge, wherein the at least one razor blade includes a plurality of razor blades arranged in parallel with each other. According to clause 9,
A razor cartridge, wherein each cutting edge of the plurality of razor blades has the same negative protrusion value relative to the shaving plane. According to clause 9,
A razor cartridge, wherein the distance between one cutting edge and a neighboring cutting edge is greater than the distance between the upper surface and a cutting edge plane. According to clause 9,
A razor cartridge, characterized in that the distance between one cutting edge and a neighboring cutting edge is 1.0 mm or more. According to paragraph 1,
The at least one razor blade includes a base portion received in the seating base and an edge portion including the cutting edge,
The seating base includes a plurality of receiving protrusions disposed along the first direction on one surface of the seating base adjacent to the at least one razor blade,
A razor cartridge, characterized in that the base is supported by the plurality of seating protrusions. According to paragraph 1,
The at least one razor blade includes a base portion received in the seating base and an edge portion including the cutting edge,
A razor cartridge, characterized in that the extension direction of the base is not parallel to the normal line of the shaving plane. According to paragraph 1,
A razor cartridge, characterized in that the distance between the upper surface and the cutting edge is 1.00 mm or more. According to paragraph 1,
A razor cartridge, wherein in front of a foremost blade of the at least one razor blade, a space between each comb element of the plurality of comb elements does not overlap the seating base. According to paragraph 1,
The plurality of comb elements include a bottom surface facing the upper surface and adjacent the seating base,
At least a portion of the lower surface adjacent the cutting edge and an area of the seating base adjacent the at least a portion of the lower surface define a plurality of receiving holes,
A razor cartridge, wherein the at least one razor blade penetrates the plurality of receiving holes. According to paragraph 1,
A razor cartridge, wherein each comb element of the plurality of comb elements is formed as a single piece. According to paragraph 1,
Further comprising a blade housing providing the seating base and the cap,
The blade housing is a razor cartridge characterized in that it includes a rear side located behind the at least one razor blade and at least one washing hole penetrating the rear side. According to paragraph 1,
A razor cartridge, wherein the plurality of comb elements are formed integrally with the cap. According to paragraph 1,
The plurality of comb elements are:
A plurality of front combs formed on the seating base in front of the at least one razor blade and extending in the second direction,
A razor cartridge, wherein the plurality of front combs include at least a portion of the upper surface. According to clause 21,
The plurality of comb elements are:
A razor cartridge comprising a plurality of rear combs formed on the cap behind the at least one razor blade and extending in the second direction. According to clause 21,
The at least one razor blade includes a plurality of razor blades arranged side by side with each other,
The plurality of comb elements include a plurality of middle combs formed on the seating base between the plurality of blades,
A razor cartridge, wherein the plurality of intermediate combs are arranged to correspond to the positions of each front comb of the plurality of front combs. At least one shaving blade including a base portion and an edge portion including a cutting edge;
a receiving base receiving the base of the at least one razor blade aligned in a first direction;
A cap covering at least a portion of the seating base; and
A plurality of comb elements, at least a portion of which is disposed in front of the at least one razor blade, extending in a second direction not perpendicular to the first direction toward the front of the seating base. Includes comb elements,
The plurality of comb elements include a top surface configured to define a shaving plane,
A surface of the cap adjacent the cutting edge and an area of the seating base adjacent the base define a plurality of receiving holes,
Based on a vertical direction parallel to the direction toward the upper surface from the area of the seating base adjacent to the base, the vertical height of the plurality of receiving holes is the vertical height difference between one end of the base and one end of the cutting edge. A razor cartridge characterized in that it corresponds to.

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