CN117921751A - Shaving blade - Google Patents

Abstract

The utility model provides a razor blade, includes quiet sword and knife rest, quiet sword sets up on the knife rest, quiet sword has quiet sword tooth portion and quiet sword body portion, quiet sword tooth portion equidistant sets up a plurality ofly, quiet sword tooth portion includes plane tooth portion and arc tooth portion, and the arc tooth portion is close to the one end of plane tooth portion and is kept away from the width of the one end of plane tooth portion and all reduces towards arc tooth portion central point, makes the upper and lower both sides of arc tooth's groove between the arc tooth portion all form horn mouth shape, and horn mouth shape can enlarge the space that can supply the hair to get into the tooth's groove, makes the hair enter into the tooth's groove more easily and prunes, thereby improves the hair efficiency of advancing of razor at the shaving in-process.

Description

Shaving blade

Technical Field

The invention relates to the technical field of hair cutting equipment, in particular to a hair shaving blade.

Background

In the conventional shaver, the parallel or vertical structure is arranged between the two opposite groove walls of the tooth groove between the cutter teeth of the static cutter, so that the hair feeding efficiency is low in the shaving process, and the surface of the skin is required to be cleaned by repeatedly shaving at the same position, so that a shaver structure capable of improving the hair feeding efficiency is needed.

Disclosure of Invention

In view of this, the present invention provides a shaving blade.

In order to achieve the above purpose, the present invention provides the following technical solutions:

The utility model provides a shaving blade, includes quiet sword and knife rest, quiet sword sets up on the knife rest, quiet sword has quiet sword tooth portion and quiet sword body portion, quiet sword tooth portion includes plane tooth portion and arc tooth portion, arc tooth portion both ends are connected with plane tooth portion and quiet sword body portion respectively, and is adjacent form the arc tooth's socket between the arc tooth portion, at least one side wall in the arc tooth portion both sides contracts towards arc tooth portion central direction from the tip, makes the central width of arc tooth portion be less than the width of tip.

Preferably, the groove walls at two sides of the arc-shaped tooth groove are contracted towards the center direction of the arc-shaped tooth groove.

Preferably, at least one side of the groove walls on two sides of the arc-shaped tooth groove is contracted towards the center direction of the arc-shaped tooth groove, and the other side is perpendicular to the plane tooth part

Preferably, the arc tooth portion has first arc portion, second arc portion and tilting portion, second arc portion sets up between first arc portion and tilting portion, first arc portion sets up in the one side that arc tooth portion is close to plane tooth portion, the width of first arc portion reduces gradually by plane tooth portion one side towards second arc portion one side direction, the width that second arc portion is close to first arc portion one side enlarges gradually towards tilting portion one side direction, the width that tilting portion is close to second arc portion one side reduces gradually towards quiet sword body one side direction.

Preferably, the width of the joint of the second arc-shaped part and the inclined part is the minimum width position on the arc-shaped tooth part, the width of the minimum width position is L4, arc-shaped tooth grooves and plane tooth grooves which are communicated are formed between the adjacent arc-shaped tooth parts and plane tooth parts, the joint of the second arc-shaped part and the inclined part extends towards the arc-shaped tooth groove direction to form a maximum distance L1, and the groove distance between the plane tooth grooves is L2.

Preferably, L1 is 0.25-0.55mm, L1 is more than L2, L1 is 1.2-1.6 times of L2, and L4 is more than or equal to 0.6mm and more than or equal to 0.2mm.

Preferably, the groove wall of the arc-shaped tooth groove close to one side of the static cutter body is in a circular bead structure, tangential points are formed between the groove walls on two sides of the inclined part and the circular bead structure, the straight line distance between the tangential points is L3, and L1 is more than L2, and L1 is more than L3.

Preferably, the groove walls on two sides of the arc-shaped tooth groove where the L1 is located are provided with side round corner structures, arc-shaped groove walls are arranged between the groove walls on two sides of the arc-shaped tooth groove, and the arc-shaped groove walls are arranged in a round corner structure.

Preferably, the groove walls on two sides of the arc-shaped tooth groove close to the arc-shaped tooth part are obliquely arranged from the inner part of the arc-shaped tooth groove to the outer part of the arc-shaped tooth groove and away from the center direction of the arc-shaped tooth groove.

Preferably, an installation cavity is formed between the static knife and the knife rest, a movable knife is arranged in the installation cavity, the movable knife is provided with a movable knife tooth part, and the movable knife tooth part is wrapped by the plane tooth part.

The invention has the beneficial effects that: the static knife tooth part comprises a plane tooth part and an arc tooth part, the physiological structure of human skin is fully considered in the design, the stimulation to the skin in the shaving process can be reduced, the risk of skin allergy and scratch is reduced, and secondly, the arc tooth part is arranged at two ends of the plane tooth part, and the arc tooth part is respectively connected with the plane tooth part and the static knife body part.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is another angular schematic view of FIG. 1;

FIG. 3 is another angular schematic view of FIG. 1;

FIG. 4 is an enlarged view of FIG. 1 at A;

FIG. 5 is an enlarged view of FIG. 2 at B;

FIG. 6 is an enlarged view of FIG. 3 at C;

FIG. 7 is a schematic illustration of another embodiment;

FIG. 8 is another angular schematic view of FIG. 7;

FIG. 9 is another angular schematic view of FIG. 7;

FIG. 10 is an enlarged view of FIG. 8 at D;

fig. 11 is an enlarged view of fig. 9 at E.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The invention will be further described with reference to the drawings.

The invention provides the following technical scheme: as shown in fig. 1-6, the invention discloses a hair shaving blade, which comprises a static blade 1 and a blade rest 2, wherein the static blade 1 is arranged on the blade rest 2, the static blade 1 is provided with a static blade tooth part 3 and a static blade body part 4, the static blade tooth part 3 comprises a plane tooth part 5 and an arc tooth part 6, the plane tooth part 5 and the arc tooth part are respectively arranged at intervals, the arc tooth part 6 is arranged at least one end of the plane tooth part 5, the arc tooth part 6 is respectively connected with the plane tooth part 5 and the static blade body part 4, and at least one side wall of two sides of the arc tooth part 6 is contracted from an end part 15 towards the center direction of the arc tooth part, so that the center width of the arc tooth part 6 is smaller than the width of the end part 15. Specifically, in this design, quiet sword tooth 3 includes plane tooth portion 5 and arc tooth portion 6, designs arc tooth portion 6, makes tooth's socket between the plane tooth portion 5 form the open mouth, and the hair of being convenient for gets into, through the width at control arc tooth portion center being less than both ends width, makes adjacent arc tooth's socket form big-end-in-side horn or awl shape from the orthographic projection of plane tooth portion to and from quiet sword body portion orthographic projection the big-end-up horn or awl shape of arc tooth's socket formation. If the arc tooth part is not added, the two ends of the plane tooth part form a closed shape, hair can only be inserted downwards from the right upper direction, the hair feeding benefit is relatively low similar to the round Kong Jinmao of the rotary blade, and the design fully considers the outline of human skin, so that the static knife is smoother when being displaced along the skin, the stimulation to the skin in the shaving process can be reduced, and the risk of skin scratch is reduced.

Specifically, in an embodiment, the arc tooth portions 6 are formed at two ends of the planar tooth portion 5, that is, two sides of the planar tooth portion 5 are connected with the static cutter body portion 4 through the arc tooth portions 6, and in this embodiment, the arc tooth portions 6 are disposed at two ends of the planar tooth portion 5, so that the hair feeding efficiency can be improved; in other embodiments, the arcuate tooth 6 may be formed on only one end of the planar tooth 5.

In this embodiment, the groove walls on both sides of the arc-shaped tooth groove 10 are contracted towards the center direction of the arc-shaped tooth groove 10, the arc-shaped tooth parts 6 are arranged at both ends of the planar tooth part 5, the arc-shaped tooth parts 6 are respectively connected with the planar tooth part 5 and the static cutter body part 4, the design enables the razor to adapt to the curvature of the skin better in the shaving process, the shaving is more thorough, and the width of one end of the arc-shaped tooth part 6 close to the planar tooth part 5 and one end far away from the planar tooth part 5 is reduced towards the center position of the arc-shaped tooth part 6, the contraction is gradually contracted, namely, the side walls of the arc-shaped tooth parts are arranged in an inclined structure, so that the upper side and the lower side of the arc-shaped tooth groove 10 between the arc-shaped tooth parts 6 are in a horn shape (namely, the horn shape outwards is formed from the orthographic projection direction of the planar tooth parts, and the horn shape from top to bottom is formed from the orthographic projection direction of the static cutter body part), the horn shape can enlarge the space for the hair to enter the tooth groove, the hair can be more easily enter the tooth groove, the hair can be trimmed, and the hair can be more easily enter the tooth groove, and the hair can be shaved in the hair.

Referring to fig. 7-11, in particular, in one embodiment, the groove walls on both sides of the arc-shaped tooth groove 10 (i.e., the arc-shaped tooth portions on both sides of the arc-shaped tooth groove) are contracted at least on one side toward the center of the arc-shaped tooth groove, and the other side is perpendicular to the planar tooth portion, so that the arc-shaped dimension forms a conical structure from the front projection direction of the planar tooth portion 5 and the front projection direction of the stationary blade body portion 4 from top to bottom. In this embodiment, the arc-shaped tooth slot 10 may also have a configuration in which one side slot wall is inclined from the inside of the arc-shaped tooth slot 10 toward the outside of the arc-shaped tooth slot 10 away from the center of the arc-shaped tooth slot 10, and the other side slot wall is in a vertical shape. This design may enable the arcuate teeth to more effectively grasp and cut hair quickly during shaving. At the same time, the vertical slot wall on the other side can better maintain the stability and durability of the shaver.

Further, in this embodiment, the both sides cell wall of arc tooth's socket is symmetrical structure and contracts, arc tooth portion 6 has first arc portion 7, second arc portion 8 and tilting portion 9, second arc portion 8 sets up between first arc portion 7 and tilting portion 9, first arc portion 7 sets up in arc tooth portion 6 and is close to one side of plane tooth portion 5, the width of first arc portion 7 reduces gradually by plane tooth portion 5 side towards second arc portion 8 one side direction, the width of second arc portion 8 side that is close to first arc portion 7 expands gradually towards tilting portion 9 one side direction, the width of tilting portion 9 side that is close to second arc portion 8 side reduces gradually towards quiet sword body portion 4 one side direction. Specifically, the adaptability and efficiency of the razor in the shaving process are further enhanced in this embodiment, specifically, the arc tooth portion 6 includes the first arc portion 7, the second arc portion 8 and the inclined portion 9, this kind of design makes the arc tooth portion 6 can adapt to the curvature change of skin surface better in the shaving process, thereby make shaving more smooth and thorough, the width of the first arc portion 7 reduces gradually by plane tooth portion 5 side towards second arc portion 8 side, this kind of design makes the space requirement that the first arc portion 7 can adapt to the hair entering the tooth groove better, make the hair more easily enter the tooth groove and prune, in the same way, the width of second arc portion 8 near first arc portion 7 side gradually enlarges towards inclined portion 9 side, and the width of inclined portion 9 near second arc portion 8 side gradually reduces towards quiet knife body portion 4 side, this kind of design makes the arc tooth groove 10 between second arc portion 8 and the inclined portion 9 on the adjacent quiet knife tooth portion 3 have the structure of a plurality of horn mouths, and then promote the efficiency that the hair gets into the tooth groove, in addition, the design has improved the shaving efficiency in the shaving process of the skin and the physiological structure of shaving in the shaving process.

Further, the width of the joint between the second arc-shaped part 8 and the inclined part 9 of the shaver is the minimum width position on the arc-shaped tooth part 6, the width of the minimum width position is L4, the arc-shaped tooth grooves 10 and the plane tooth grooves 11 which are communicated with each other are formed between the adjacent arc-shaped tooth parts 6 and the plane tooth parts 5, the joint between the second arc-shaped part 8 and the inclined part 9 extends towards the direction of the arc-shaped tooth grooves 10 to form a maximum distance L1, and the groove distance between the plane tooth grooves 11 is L2. Specifically, in this embodiment, since the width of the first arc-shaped portion 7 gradually decreases from the side of the planar tooth portion 5 toward the side of the second arc-shaped portion 8, the shape of the arc-shaped tooth slot 10 between the adjacent first arc-shaped portions 7 is in a positive trapezoid shape, while the width of the side of the second arc-shaped portion 8 near the first arc-shaped portion 7 gradually expands toward the side of the inclined portion 9, so that the shape of the arc-shaped tooth slot 10 between the adjacent second arc-shaped portions 8 is also in a positive trapezoid shape, L4 is the minimum width of the arc-shaped tooth portion 6, and the minimum width position L4 of the arc-shaped tooth portion 6 is designed, so that the slot width of the arc-shaped tooth slot 10 can be changed corresponding to the first arc-shaped portion 7, the second arc-shaped portion 8 and the inclined portion 9, respectively. In addition, the slot pitch L2 between the planar slot 11 is also a consideration in designing. The reasonable L2 value can ensure that the shaver keeps stable performance in the use process, and improves the shaving effect, so that in summary, the design of the shaver needs to comprehensively consider a plurality of factors including the width of the arc-shaped tooth part 6, the shapes and the intervals of the arc-shaped tooth grooves 10 and the plane tooth grooves 11, and the like. These factors together determine the performance and effectiveness of the razor.

Further, in order to ensure stability and smoothness of the shaver in the use process, in this embodiment, the arc tooth grooves 10 between the adjacent inclined portions 9 are arranged in a U-shaped structure, the groove walls of the arc tooth grooves 10 close to one side of the static cutter body portion 4 are arranged in a rounded structure, the rounded structure of the position further comprises a rounded structure between a skin contact surface and the arc tooth grooves 10, the design of the rounded structure can reduce friction and stimulation of the shaver to skin in the use process, and improve the use comfort, meanwhile, tangent points are formed between the groove walls on two sides of the inclined portions 9 and the rounded structure, the straight line distance between the tangent points is L3, and the design of L3 can influence the stability and the shaving effect of the shaver in the use process. Reasonable L3 value can ensure that the shaver is kept stable in the use process, and the shaving effect is improved. In other embodiments, the arc-shaped tooth grooves 10 between the inclined parts 9 can be V-shaped or the like, in addition, in order to further improve the shaving efficiency, L1 is larger than L2, L1 is larger than L3, L1 is 0.25-0.55mm, L1 is 1.2-1.6 times of L2, and 0.6mm is larger than or equal to L4 and is larger than or equal to 0.2mm. The design can ensure that the shaver is smoother in the use process, and the shaving effect is improved.

In particular, the design of the arcuate slot 10 of the razor may allow hair to be more easily removed during use. The groove walls on two sides of the arc-shaped tooth groove 10 are obliquely arranged from the inner part of the arc-shaped tooth groove 10 to the outer part of the arc-shaped tooth groove 10 and away from the center direction of the arc-shaped tooth groove 10, and the design can enable the arc-shaped tooth to grasp hair more effectively and cut off the hair rapidly in the shaving process.

Specifically, in an embodiment, a mounting cavity 12 is formed between the stationary blade 1 and the blade holder 2, a moving blade 13 is disposed in the mounting cavity 12, the moving blade 13 has a moving blade tooth portion 14, and the plane tooth portion 5 wraps the moving blade tooth portion 14 entirely or partially. Specifically, in this embodiment, the plane tooth portion 5 fully wraps or partially wraps the movable cutter tooth portion 14, so that the movable cutter tooth portion 14 is hidden in the outer wall of the static cutter 1, and the benefit of this arrangement is that the condition that the movable cutter tooth portion 14 is exposed in the use process of the shaver can be reduced, and the use safety and stability are improved. In addition, the cooperation between the movable cutter tooth part 14 and the static cutter tooth part 3 enables the shaver to realize smooth and smooth movement in the shaving process, and further improves the shaving effect.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a razor blade, includes quiet sword and knife rest, quiet sword sets up on the knife rest, quiet sword has quiet sword tooth portion and quiet sword body portion, its characterized in that: the static cutter tooth part comprises a plane tooth part and an arc tooth part, two ends of the arc tooth part are respectively connected with the plane tooth part and the static cutter body part, an arc tooth groove is formed between the adjacent arc tooth parts, and at least one side wall of two sides of the arc tooth part is contracted from the end part towards the center direction of the arc tooth part, so that the center width of the arc tooth part is smaller than the width of the end part.

2. The razor blade of claim 1, wherein: the groove walls at two sides of the arc-shaped tooth groove are contracted towards the center direction of the arc-shaped tooth groove.

3. The razor blade of claim 1, wherein: at least one side of the groove walls on two sides of the arc-shaped tooth groove is contracted towards the center direction of the arc-shaped tooth groove, and the other side is perpendicular to the plane tooth part.

4. A razor blade according to any of claims 1-3, wherein: the arc tooth portion has first arc portion, second arc portion and tilting portion, second arc portion sets up between first arc portion and tilting portion, first arc portion sets up in the one side that arc tooth portion is close to plane tooth portion, the width of first arc portion reduces gradually towards second arc portion one side direction by plane tooth portion one side, the width that second arc portion is close to first arc portion one side enlarges gradually towards tilting portion one side direction, the width that tilting portion is close to second arc portion one side reduces gradually towards quiet sword body one side direction.

5. The razor blade of claim 4, wherein: the width of the joint of the second arc-shaped part and the inclined part is the minimum width position on the arc-shaped tooth part, the width of the minimum width position is L4, a plane tooth groove is formed between the plane tooth parts, the plane tooth groove is communicated with the arc-shaped tooth groove, the joint of the second arc-shaped part and the inclined part extends towards the direction of the arc-shaped tooth groove to form a maximum distance L1, and the groove distance between the plane tooth grooves is L2.

6. The razor blade of claim 5, wherein: l1 is 0.25-0.55mm, L1 is more than L2, L1 is 1.2-1.6 times of L2, and L4 is more than or equal to 0.6mm and more than or equal to 0.2mm.

7. The razor blade of claim 5, wherein: the groove wall of the arc tooth groove, which is close to one side of the static cutter body, is arranged in a round corner structure, tangential points are formed between the groove walls on two sides of the inclined part and the round corner structure, the straight line distance between the tangential points is L3, and L1 is more than L2, and L1 is more than L3.

8. The razor blade of claim 5, wherein: the arc tooth groove both sides cell wall that L1 place has the side fillet structure, arc cell wall has between the both sides cell wall of arc tooth groove, arc cell wall is the fillet structure setting.

9. The razor blade of claim 1, wherein: the groove walls on two sides of the arc-shaped tooth groove, which are close to the arc-shaped tooth part, are obliquely arranged from the inner part of the arc-shaped tooth groove to the outer part of the arc-shaped tooth groove and away from the center direction of the arc-shaped tooth groove.

10. The razor blade of claim 1, wherein: an installation cavity is formed between the static knife and the knife rest, a movable knife is arranged in the installation cavity, the movable knife is provided with a movable knife tooth part, and the movable knife tooth part is wrapped by the plane tooth part.