Narrow strip of razor blade sets, narrow strip outer guard and narrow strip inner blade

Abstract

The utility model discloses a narrow strip shape sword group of safety razor, including narrow strip shape's outer fixed sword and narrow strip shape's inner blade, its inner sword mounting portion sets along the length direction a of inner sword top and is equipped with a plurality of inner sword notches between inner sword top, and the inner sword tooth includes the inner sword overhanging tooth of setting corresponding inner sword notch, and the fixed sword mounting portion sets along the length direction a of fixed sword top and is equipped with a plurality of fixed sword notches between fixed sword top, and the fixed sword tooth includes the fixed sword overhanging tooth of setting corresponding fixed sword notch, and the setting notch reduces the length of the connecting material between fixed sword mounting portion and fixed sword top or inner sword mounting portion and inner sword top, reduces the difficulty of bending and the distortion of outer fixed sword and inner blade in the bending forming, and the fixed sword and inner sword overhanging tooth do not need to bend together, and the structure stability is good, is favorable to cutting. The utility model discloses a narrow strip shape outer fixed sword of safety razor, and the utility model discloses a narrow strip shape inner blade of safety razor.

Description

[Technical Field]

[0001] This utility model relates to a narrow strip blade assembly for a razor, a narrow strip outer fixed blade for a razor, and a narrow strip inner blade for a razor. [Background Technology]

[0002] Existing dry shavers have a shaver head with a semi-cylindrical blade assembly and a narrow slit blade assembly. The semi-cylindrical blade assembly is used for a clean shave, while the slit blade assembly, made of a thicker material, is mainly used to shorten long hairs. As disclosed in patent publication CN100579735C, entitled "Dry Shaver," the narrow slit blade assembly includes an outer blade and an inner blade. The outer blade is formed by bending sheet metal and has multiple slits between its top and sidewalls as hair inlet grooves. Fixed teeth are formed between two slits. The inner blade is located inside the outer blade and is also formed by bending sheet metal. A groove is provided on its upper part that penetrates the top and upper sidewalls, thereby forming inner teeth between two grooves. When the inner blade reciprocates inside the outer blade, the inner teeth and fixed teeth cooperate to cut the hairs entering through the slits.

[0003] The sharpness of the slit blade assembly is related to the fit between the inner and fixed blades. However, due to their long length, the inner or outer blades require a long material length to be bent during the bending process to form the sidewall, making bending difficult. Furthermore, since the fixed or moving blades bend along with the blades, it is difficult to ensure consistency between the fixed or moving blades arranged along the length direction from one end to the other. This results in some inner and fixed blades having good cutting performance when they mesh well, while others have poor cutting performance and are prone to splintering.

[0004] In addition, although the slit blade assembly is used to shave short to medium-length hair, the slits between the top and sidewalls of the outer blades are not conducive to the entry of medium-length hair, resulting in low shaving efficiency.

[0005] This utility model was made based on this situation. [Utility Model Content]

[0006] The technical problem to be solved by this utility model is to provide a narrow strip blade assembly for a razor with a simple structure, which has the characteristics of high shaving efficiency and easy manufacturing.

[0007] To solve the above-mentioned technical problems, the present invention provides a narrow-strip blade assembly for a razor, comprising a narrow-strip outer fixed blade and a narrow-strip inner blade. The inner blade includes an inner blade top and inner blade mounting portions that bend downwards from opposite sides of the inner blade top. The inner blade top has several rows of inner blade teeth arranged along the length direction a of the inner blade top. The inner blade mounting portions are arranged along the length direction a of the inner blade top and have several inner blade notches between them. The inner blade teeth include several inner blade suspension teeth with their outer ends suspended, corresponding to the inner blade notches. The outer fixed blade includes a fixed blade top and fixed blade mounting portions that bend downwards from opposite sides of the fixed blade top. The fixed blade top and the fixed blade mounting portions on both sides form a strip-shaped groove for guiding the inner blade within. The fixed blade top is provided with several rows of fixed blade teeth arranged along the length direction a of the fixed blade top. The fixed blade mounting portions are provided along the length direction a of the fixed blade top and have several fixed blade notches between them. The fixed blade teeth include several cantilevered fixed blade suspended teeth arranged corresponding to the fixed blade notches. The top surface of the inner blade teeth is attached to the bottom surface of the fixed blade teeth.

[0008] In the narrow-strip blade assembly of the razor described above, the outer end of the fixed blade suspension tooth is formed with a thickened ball head by laser sintering.

[0009] As described above, in the narrow strip blade assembly of the razor, the fixed blades have sharp-angled fixed cutting edges on both sides of the fixed blades, the fixed cutting edges being located at the lower end of the fixed blades, and the inner blades have sharp-angled moving cutting edges on both sides of the inner blades, the moving cutting edges being located at the upper end of the inner blades.

[0010] The second technical problem to be solved by this utility model is to provide a narrow strip-shaped outer fixed blade for a razor with a simple structure. Through the fixed blade notch and the fixed blade suspension teeth, it is easy to comb and hook into the hair for cutting, resulting in high shaving efficiency and easy manufacturing.

[0011] To solve the above-mentioned technical problems, the present invention provides a narrow strip-shaped outer fixed blade for a shaver, comprising a fixed blade top and fixed blade mounting portions that bend downward from opposite sides of the fixed blade top. The fixed blade top is provided with several rows of fixed blade teeth arranged along the length direction a of the fixed blade top. The fixed blade mounting portions are provided along the length direction a of the fixed blade top and have several fixed blade notches between them. The fixed blade teeth include several cantilevered fixed blade suspension teeth arranged corresponding to the fixed blade notches, and the outer ends of the fixed blade suspension teeth are formed with thickened ball heads.

[0012] As described above, the narrow strip-shaped outer blade of the razor has an inclined portion connecting the blade mounting part and the top of the blade. The inclined portion slopes from the outside of the blade mounting part to the inside. The top of the blade and the blade mounting parts on both sides form a strip-shaped groove for guiding the inner blade to move inside.

[0013] As described above, the narrow strip-shaped outer fixed blade of the razor has sharp-angled fixed cutting edges on both sides of the fixed blade teeth, and the fixed cutting edges are located at the lower end of the fixed blade teeth.

[0014] As described above, the narrow strip-shaped outer fixed blade of the shaver has two or more fixed blade notches along its length between the top of the fixed blade and the fixed blade mounting part on one side. Each fixed blade notch corresponds to multiple fixed blade suspension teeth. The fixed blade teeth include fixed blade curved teeth that separate two adjacent fixed blade notches. The fixed blade curved teeth connect the fixed blade mounting part and the top of the fixed blade.

[0015] As described above, the narrow outer fixed blade of the shaver has several elongated first deformation-compensating holes on the fixed blade mounting part below the fixed blade curved teeth, and the top of the fixed blade has an upwardly convex arc structure in the length direction.

[0016] As described above, in the narrow strip-shaped outer fixed blade of the shaver, the fixed blade teeth on one side of the top of the fixed blade are all fixed blade suspended teeth, and only one fixed blade notch is provided between the top of the fixed blade on the corresponding side and the fixed blade mounting part.

[0017] The third technical problem to be solved by this utility model is to provide a narrow strip inner blade for a razor with a simple structure. Through the inner blade notch and the inner blade suspension teeth, hair can easily enter the tooth groove between the two inner blade suspension teeth for cutting, resulting in high shaving efficiency and ease of manufacturing.

[0018] To solve the above-mentioned technical problems, the present invention provides a narrow strip-shaped inner blade for a razor, comprising an inner blade top and inner blade mounting portions that bend downwards from opposite sides of the inner blade top. The inner blade top is provided with several rows of inner blade teeth arranged along the length direction a of the inner blade top. The left and right sides of the inner blade teeth form acute-angled moving blades, which are located at the upper end of the inner blade teeth. The inner blade mounting portions are arranged along the length direction a of the inner blade top and have several inner blade notches between them. The inner blade teeth include several inner blade suspended teeth with their outer ends suspended, which are arranged corresponding to the inner blade notches.

[0019] The razor described above has a narrow inner blade, the inner blade teeth of which are wide at the root and gradually narrow outwards.

[0020] The narrow inner blade of the razor described above has a downwardly recessed oil groove on the top of the inner blade and / or the top surface of the inner blade teeth.

[0021] As described above, the narrow inner blade of the razor has two or more inner blade notches along its length between the top of the inner blade and the inner blade mounting part on one side. Each inner blade notch corresponds to multiple inner blade suspension teeth. The inner blade teeth include inner blade curved teeth that separate two adjacent inner blade notches. The inner blade curved teeth connect the inner blade mounting part and the top of the inner blade.

[0022] As described above, the narrow inner blade of the razor has several elongated second deformation-counteracting holes on the inner blade mounting part below the inner blade's curved teeth, and the top of the inner blade has an upwardly convex arc-shaped structure in the length direction.

[0023] Compared with the prior art, the present invention has the following advantages:

[0024] 1. In this utility model, the narrow strip-shaped outer fixed blade and the narrow strip-shaped inner blade are respectively provided with a fixed blade notch and an inner blade notch at the bending edge where the top of the fixed blade and the top of the inner blade are bent downwards. The fixed blade notch and the inner blade notch are respectively provided with fixed blade suspension teeth and inner blade suspension teeth. By setting the fixed blade notch, the length of the connecting material between the fixed blade mounting part and the top of the fixed blade is reduced, the bending difficulty is reduced, and the torsional deformation of the outer fixed blade during bending is reduced. The fixed blade suspension teeth do not need to be bent along with it, which improves the structural stability of the fixed blade suspension teeth and helps to improve the sharpness of the cut. The cantilevered fixed blade suspension teeth, together with the fixed blade notch, are conducive to combing the hair and hooking the hair into the cutting. Similarly, setting an inner blade notch reduces the length of the connecting material between the inner blade mounting part and the top of the inner blade, reduces the difficulty of bending, and reduces the torsional deformation of the inner blade during bending. In addition, the inner blade suspension teeth do not need to be bent along with it, which improves the structural stability of the inner blade suspension teeth and helps to improve the sharpness of the cut. The inner blade suspension teeth with the outer end suspended, together with the inner blade notch, make it easier for hair to enter the tooth grooves of two adjacent inner blade suspension teeth and be cut off.

[0025] 2. The outer end of the fixed blade suspension tooth of this utility model is formed with a thickened ball head to improve the skin feel.

[0026] 3. The fixed blade mounting part of this utility model has several elongated first deformation-compensating holes located below the curved teeth of the fixed blade. The top of the fixed blade has an upwardly convex arc-shaped structure in the length direction to facilitate shaving the concave parts of the body. By setting the first deformation-compensating holes, when the top of the fixed blade is stamped into an arc-shaped structure, when the curved teeth of the fixed blade pull on the fixed blade mounting part, the deformation occurs in the area of ​​the first deformation-compensating holes, preventing the deformation from spreading to other structures of the fixed blade mounting part. [Attached Image Description]

[0027] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0028] Figure 1 This is an exploded view of a narrow strip blade assembly of a razor according to this utility model;

[0029] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0030] Figure 3 This is a cross-sectional view of a narrow strip blade assembly of a razor according to the present invention;

[0031] Figure 4 This is a schematic diagram of the structure of a narrow strip-shaped outer blade of a razor according to this utility model;

[0032] Figure 5 This is a schematic diagram of an embodiment of the present invention where the outer fixed blade has two fixed blade notches on one side;

[0033] Figure 6 This is a schematic diagram of an embodiment of the present invention where the outer fixed blade has four fixed blade notches on one side;

[0034] Figure 7 This is a schematic diagram of an embodiment of the present invention where the top of the outer fixed blade has an arc-shaped structure;

[0035] Figure 8 This is a schematic diagram of the structure of a narrow strip-shaped inner blade of a razor according to this utility model;

[0036] Figure 9 This is a schematic diagram of an embodiment of the present invention in which the top of the inner blade has an arc-shaped structure.

Detailed Implementation Methods

[0037] The present invention will be further described below with reference to the accompanying drawings:

[0038] like Figures 1 to 9 The razor shown has a narrow blade assembly, including a narrow outer fixed blade 1 and a narrow inner blade 2. In use, the outer fixed blade 1 is mounted and fixed on an outer blade holder 3, and the inner blade 2 is mounted and fixed on an inner blade holder 4. The inner blade 2 is installed inside the outer fixed blade 1.

[0039] The outer fixed blade 1 includes a fixed blade top 11 and fixed blade mounting portions 12 that bend downwards from opposite sides of the fixed blade top 11. The fixed blade top 11 has several rows of fixed blade teeth 13 arranged along the length direction a of the fixed blade top 11. The fixed blade mounting portions 12 are arranged along the length direction a of the fixed blade top 11 and have several fixed blade notches 14 between them. The fixed blade teeth 13 include several cantilevered fixed blade teeth 13a corresponding to the fixed blade notches 14. The fixed blade notches 14 reduce the length of the connecting material between the fixed blade mounting portions 12 and the fixed blade top 11 in the length direction a, reducing the difficulty of bending and reducing the torsional deformation of the outer fixed blade 1 during bending. Furthermore, the fixed blade teeth 13a do not need to be bent along with the fixed blade, improving their stability and thus enhancing the cutting sharpness. The cantilevered fixed blade teeth 13a, in conjunction with the fixed blade notches 14, facilitate combing and hooking the hair for cutting.

[0040] Preferably, the outer end of the fixed blade tooth 13a is formed with a thickened ball head 130 to improve the feel against the skin. Preferably, the ball head 130 is formed by laser sintering at the outer end of the fixed blade tooth 13a.

[0041] The fixed blade top 11 and the fixed blade mounting portions 12 on both sides form a strip groove 15 for guiding the inner blade 2 to move within. Preferably, the upper end of the fixed blade mounting portion 12 is provided with an inclined portion 16 connected to the fixed blade top 11, and the inclined portion 16 extends obliquely from the outside to the inside of the fixed blade mounting portion 12.

[0042] like Figure 4 In the embodiment shown, the fixed blade teeth 13 on one side of the fixed blade top 11 are all fixed blade suspension teeth 13a. Only one fixed blade notch 14 is provided between the fixed blade top 11 and the fixed blade mounting part 12 on the corresponding side. The fixed blade mounting part 12 is connected to the fixed blade top 11 only through the inclined parts 16 at both ends, and it is easy to bend the fixed blade top 11 downward to form the fixed blade mounting part 12.

[0043] Or, such as Figure 5-7 In the illustrated embodiment, there are two or more fixed blade notches 14 along the length direction between the fixed blade top 11 and the fixed blade mounting part 12 on one side. Each fixed blade notch 14 corresponds to multiple fixed blade suspension teeth 13a. The fixed blade teeth 13a include fixed blade curved teeth 13b that separate two adjacent fixed blade notches 14. The fixed blade curved teeth 13b connect the fixed blade mounting part 12 and the fixed blade top 11 to form a structural support, which avoids the fixed blade top 11 corresponding to a single fixed blade notch 14 being too long, resulting in insufficient structural strength. This is beneficial for reducing the thickness of the material used in the outer fixed blade 1.

[0044] Preferably, such as Figure 7 In the illustrated embodiment, the fixed blade mounting portion 12 has a plurality of elongated first deformation-compensating holes 17 located below the fixed blade curved teeth 13b. The top 11 of the fixed blade has an upwardly convex arc-shaped structure in the length direction to facilitate shaving the concave areas of the body. By providing the first deformation-compensating holes 17, when the top 11 of the fixed blade is stamped into an arc-shaped structure, when the fixed blade curved teeth 13b pull on the fixed blade mounting portion 12, the deformation occurs in the area of ​​the first deformation-compensating holes 17, preventing the deformation from spreading to other structures of the fixed blade mounting portion 12.

[0045] Of course, such as Figure 4-5 As shown, the top 11 of the fixed blade can also be a straight or nearly straight structure in the length direction.

[0046] The inner blade 2 includes an inner blade top 21 and inner blade mounting portions 22 that bend downwards from opposite sides of the inner blade top 21. The inner blade top 21 has several rows of inner blade teeth 23 arranged along its length direction a. The inner blade mounting portions 22 are arranged along the length direction a of the inner blade top 21 and have several inner blade notches 24 between them. The inner blade teeth 23 include several inner blade suspended teeth 23a with their outer ends suspended, corresponding to the inner blade notches 24. The inner blade notches 24 reduce the length of the connecting material between the inner blade mounting portions 22 and the inner blade top 21 along the length direction a, reducing the difficulty of bending and the torsional deformation of the inner blade 2 during bending. Furthermore, the inner blade suspended teeth 23a do not need to be bent along with the blade, improving their stability and thus enhancing cutting sharpness. The suspended inner blade teeth 23a, in conjunction with the inner blade notches 24, facilitate the cutting of hair by allowing it to enter the grooves of adjacent inner blade suspended teeth 23a.

[0047] Preferably, the inner blade suspension teeth 23a are wide at the root and gradually narrow outwards, with good structural strength, which facilitates the hair to enter from the side between the two inner blade suspension teeth 23a and be cut off.

[0048] The top surface of the inner blade tooth 23 is attached to the bottom surface of the fixed blade tooth 13. Preferably, the top 21 of the inner blade and / or the top surface of the inner blade tooth 23 are provided with a downwardly recessed oil groove 25, which is conducive to storing lubricating oil and reducing friction with the outer blade.

[0049] Preferably, there are two or more inner blade notches 24 along the length direction between the inner blade top 21 and the inner blade mounting part 22 on one side. Each inner blade notch 24 corresponds to multiple inner blade suspension teeth 23a. The inner blade teeth 23 include inner blade curved teeth 23b that separate two adjacent inner blade notches 24. The inner blade curved teeth 23b connect the inner blade mounting part 22 and the inner blade top 21 to form a structural support, so as to avoid the structural strength of the inner blade top 21 corresponding to the inner blade notch 24 being insufficient due to the single inner blade notch 24 being too long.

[0050] like Figure 9 In the embodiment shown, the inner blade mounting part 22 is provided with a plurality of elongated second deformation-compensating holes 27 below the inner blade curved teeth 23b. The top 21 of the inner blade has an upwardly convex arc structure in the length direction to facilitate the shaving of the concave area of ​​the body by cooperating with the upwardly convex fixed blade top 11. By setting the second deformation-compensating holes 27, when the top 21 of the inner blade is stamped into an arc structure, when the inner blade curved teeth 23b pull the inner blade mounting part 22, the deformation occurs in the area of ​​the second deformation-compensating holes 27, and the deformation is prevented from spreading to other structures of the inner blade mounting part 22.

[0051] Preferably, the fixed blade 13 has sharp-angled fixed blades 131 on both sides of the fixed blade 13, and the fixed blades 131 are located at the lower end of the fixed blade 13. The inner blade 23 has sharp-angled moving blades 231 on both sides of the inner blade 23, and the moving blades 231 are located at the upper end of the inner blade 23, thereby improving the cutting sharpness.

Claims

1. A narrow strip blade assembly for a razor, characterized in that: The device includes a narrow strip-shaped outer fixed blade (1) and a narrow strip-shaped inner blade (2). The inner blade (2) includes an inner blade top (21) and inner blade mounting portions (22) that bend downwards from opposite sides of the inner blade top (21). The inner blade top (21) is provided with several rows of inner blade teeth (23) arranged along the length direction (a) of the inner blade top (21). The inner blade mounting portions (22) are arranged along the length direction (a) of the inner blade top (21) and have several inner blade notches (24) between them. The inner blade teeth (23) include several inner blade suspension teeth (23a) with their outer ends suspended, which are provided corresponding to the inner blade notches (24). The outer fixed blade (1) includes a fixed blade top (11) and a narrow strip-shaped inner blade (2). (11) Fixed blade mounting parts (12) that bend downward on opposite sides, the fixed blade top (11) and the fixed blade mounting parts (12) on both sides form a strip groove (15) for the inner blade (2) to guide the movement inside, the fixed blade top (11) is provided with several rows of fixed blade teeth (13) arranged along the length direction (a) of the fixed blade top (11), the fixed blade mounting parts (12) are arranged along the length direction (a) of the fixed blade top (11) and are provided with several fixed blade notches (14) between them and the fixed blade top (11), the fixed blade teeth (13) include several cantilevered fixed blade suspended teeth (13a) provided corresponding to the fixed blade notches (14), the top surface of the inner blade teeth (23) is attached to the bottom surface of the fixed blade teeth (13).

2. The narrow strip blade assembly of the razor according to claim 1, characterized in that: The outer end of the fixed blade tooth (13a) is formed with a thickened ball head (130) by laser sintering.

3. The narrow strip blade assembly of the razor according to claim 1, characterized in that: The fixed cutting teeth (13) have sharp-angled fixed cutting edges (131) on the left and right sides, and the fixed cutting edges (131) are located at the lower end of the fixed cutting teeth (13). The inner cutting teeth (23) have sharp-angled moving cutting edges (231) on the left and right sides, and the moving cutting edges (231) are located at the upper end of the inner cutting teeth (23).

4. A narrow strip-shaped outer fixed blade (1) for a razor, characterized in that: It includes a fixed blade top (11) and a fixed blade mounting part (12) that bends downward from the two sides opposite to the fixed blade top (11). The fixed blade top (11) is provided with several rows of fixed blade teeth (13) arranged along the length direction (a) of the fixed blade top (11). The fixed blade mounting part (12) is provided along the length direction (a) of the fixed blade top (11) and has several fixed blade notches (14) between it and the fixed blade top (11). The fixed blade teeth (13) include several cantilevered fixed blade suspension teeth (13a) provided corresponding to the fixed blade notches (14). The outer end of the fixed blade suspension teeth (13a) is formed with a thickened ball head (130).

5. The narrow strip-shaped outer blade (1) of the razor according to claim 4, characterized in that: The upper end of the fixed blade mounting part (12) is provided with an inclined part (16) connected to the top of the fixed blade (11). The inclined part (16) slopes from the outside to the inside of the fixed blade mounting part (12). The top of the fixed blade (11) and the fixed blade mounting parts (12) on both sides form a strip groove (15) for the inner blade (2) to move inward.

6. The narrow strip-shaped outer blade (1) of the razor according to claim 4, characterized in that: The fixed cutting teeth (13) are provided with sharp-angled fixed cutting edges (131) on the left and right sides, and the fixed cutting edges (131) are located at the lower end of the fixed cutting teeth (13).

7. The narrow strip-shaped outer blade (1) of the razor according to any one of claims 4-6, characterized in that: There are two or more fixed blade notches (14) between the fixed blade top (11) and the fixed blade mounting part (12) on one side along the length direction. Each fixed blade notch (14) corresponds to multiple fixed blade suspension teeth (13a). The fixed blade teeth (13) include fixed blade curved teeth (13b) that separate two adjacent fixed blade notches (14). The fixed blade curved teeth (13b) connect the fixed blade mounting part (12) and the fixed blade top (11).

8. The narrow strip-shaped outer blade (1) of the razor according to claim 7, characterized in that: The fixed blade mounting part (12) is provided with a plurality of elongated first deformation offset holes (17) located below the fixed blade curved teeth (13b), and the top of the fixed blade (11) is an upward convex arc structure in the length direction.

9. The narrow strip-shaped outer blade (1) of the razor according to any one of claims 4-6, characterized in that: The fixed blade top (11) on one side has fixed blade suspended teeth (13a), and there is only one fixed blade notch (14) between the fixed blade top (11) on the corresponding side and the fixed blade mounting part (12).

10. A narrow strip-shaped inner blade (2) for a razor, characterized in that: The device includes an inner blade top (21) and an inner blade mounting portion (22) that bends downward from opposite sides of the inner blade top (21). The inner blade top (21) is provided with several rows of inner blade teeth (23) arranged along the length direction (a) of the inner blade top (21). The left and right sides of the inner blade teeth (23) form sharp-angled moving blades (231). The moving blades (231) are located at the upper end of the inner blade teeth (23). The inner blade mounting portion (22) is arranged along the length direction (a) of the inner blade top (21) and is provided with several inner blade notches (24) between it and the inner blade top (21). The inner blade teeth (23) include several inner blade suspended teeth (23a) with their outer ends suspended, which are provided corresponding to the inner blade notches (24).

11. The narrow inner blade (2) of the razor according to claim 10, characterized in that: The root of the inner blade suspension tooth (23a) is wide and gradually narrows outward.

12. The narrow strip-shaped inner blade (2) of the razor according to claim 10, characterized in that: The top surface of the inner blade top (21) and / or the inner blade teeth (23) is provided with a downwardly recessed oil groove (25).

13. The narrow inner blade (2) of the razor according to any one of claims 10-12, characterized in that: There are two or more inner knife notches (24) between the inner knife top (21) and the inner knife mounting part (22) on one side along the length direction. Each inner knife notch (24) has multiple inner knife suspension teeth (23a). The inner knife teeth (23) include inner knife curved teeth (23b) that separate two adjacent inner knife notches (24). The inner knife curved teeth (23b) connect the inner knife mounting part (22) and the inner knife top (21).

14. The narrow inner blade (2) of the razor according to claim 13, characterized in that: The inner blade mounting part (22) is provided with a plurality of elongated second deformation offset holes (27) located below the inner blade curved teeth (23b), and the top of the inner blade (21) is an upward convex arc structure in the length direction.

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