CN114161485A - Shaver head with hair pre-stretching function and reciprocating shaver - Google Patents

Abstract

The invention relates to a shaver head with a hair pre-stretching function and a reciprocating shaver, which are characterized in that elastic blades are also arranged on a movable cutter frame, the elastic blades are arranged between two adjacent movable cutter blades and connected with the movable cutter frame, and the distance between the elastic blades and the movable cutter blades is less than the single-side swinging distance of the movable cutter frame; the projected side line of the upper end of the elastic blade is overlapped with the projected side line of the upper end of the movable blade when the elastic blade is seen from the swinging direction, and the upper end of the elastic blade and the upper end of the movable blade are respectively attached to the inner end surface of the static knife net and arc angles are arranged on two sides of the upper end of the elastic blade. The invention has the advantages that the elastic sheet with the arc angle is additionally arranged between the two adjacent movable blades, and the root of the beard can be pulled out of the surface of the skin as far as possible by clamping the beard by utilizing the cooperation of the elastic sheet force and the inner end surface of the static blade net. Then, when the movable blade passes through the beard inlet hole on the static blade net, the beard can be directly cut off, and the root of the beard can be automatically retracted into the pore in the skin under the resilience force of the skin, so that the root of the beard can not be exposed out of the skin, and the trimming effect of the beard is improved.

Description

Shaver head with hair pre-stretching function and reciprocating shaver

Technical Field

The invention relates to a beard trimming device, in particular to a shaving head and a reciprocating shaver, wherein the shaving head can pull out beards from hair follicles in advance.

Background

The existing reciprocating type cutter head applied to the shaver is basically provided with a movable cutter blade inside a static cutter net, the cutting edge of the movable cutter blade is attached to the bottom end face of the static cutter net, and a driving mechanism in a machine body is utilized to drive the movable cutter blade to swing back and forth along the bottom end face of the static cutter net so as to trim and shave beards. This structure can cut beard, but also makes the remaining root of beard on the skin surface longer. In order to avoid shortening the residual length of the beard root as much as possible, the existing shaver manufacturers are realized by reducing the thickness of the static knife net, although the residual length of the beard root on the skin surface can be shortened by reducing the thickness of the static knife net, the reduction of the thickness not only improves the production and manufacturing difficulty of the static knife net and leads the beard inlet hole of the static knife net to be easy to break and damage, but also shortens the service life of the static knife net; moreover, the thin static knife net is easy to make the movable knife blade cut the skin when in use.

Disclosure of Invention

To solve the above technical problems; the invention provides a shaver head with a hair pre-stretching function and a reciprocating shaver, wherein an elastic blade is additionally arranged on the shaver head, so that the movable blade trims beards in front of the beards in the shaving process, the elastic blade is matched with a static blade net to pre-stretch the beards, the movable blade trims the beards after the beards extend out of hair follicles as far as possible, the trimming effect of the beards can be improved under the condition that the thickness of the static blade net is not reduced, the phenomenon that the use safety of the shaver is improved because the thin static blade net is adopted to break beard inlet holes, the service life of the static blade net is shortened and the skin is cut is effectively avoided.

In order to solve the technical problems, the invention adopts the technical scheme that the shaver head with the hair pre-stretching function comprises a static cutter mesh and a movable cutter blade, wherein the movable cutter blade is arranged in the static cutter mesh and is attached to the inner end surface of the static cutter mesh, and the movable cutter blade is fixed on a movable cutter frame; the movable knife rest is also provided with an elastic blade which is arranged between two adjacent movable knife blades and is connected with the movable knife rest, and the distance L1 between the elastic blade and the movable knife blade is less than the single-side swing distance of the movable knife rest; the projected side line of the upper end of the elastic blade is overlapped with the projected side line of the upper end of the movable blade when the elastic blade is seen from the swinging direction, and the upper end of the elastic blade and the upper end of the movable blade are respectively attached to the inner end surface of the static knife net and arc angles are arranged on two sides of the upper end of the elastic blade.

Preferably, the distance L1 between the elastic blade and the adjacent movable blade is between 0.3mm and 1.2 mm.

Preferably, the thickness H of the elastic sheet is between 0.05mm and 0.3 mm.

Preferably, both sides of the upper end of the elastic sheet are respectively provided with an arc angle with R less than 0.1 mm.

Preferably, the elastic sheet comprises an arch part and an inserting part, and the inserting part is arranged at two sides of the arch part and connected with the movable tool holder; the arc of the arch part is matched with the arc of the static knife net and is attached to the inner end surface of the static knife net; the height of the arch is no more than half of the outer diameter of the arch.

Preferably, the inserting part and the movable knife rest form a whole through integral injection molding.

Preferably, the inserting part can float up and down and is fixedly connected with the movable cutter frame, and the arched part is always attached to the inner end face of the static cutter net under the action of the elastic part.

Preferably, the movable blade is composed of a plurality of independent metal substrates, each metal is basically fixedly arranged on the movable knife rest at intervals, and the elastic blade is arranged between two adjacent metal substrates.

Preferably, the movable blade comprises a plate body, a plurality of beard-arranging holes are formed in the plate body to enable a plurality of cutting teeth to be formed on the plate body, and two sides of the plate body are respectively clamped and fixed with two sides of the movable cutter frame; the elastic blade is fixed on the movable knife rest and is positioned in the beard-arranging hole.

On the basis of the technical scheme, the applicant also provides a technical scheme of a reciprocating shaver, which comprises the shaver head with the hair pre-stretching function.

The elastic blade with the arc angle is additionally arranged between two adjacent movable blades, the distance between the elastic blade and the movable blade is smaller than the unilateral swinging distance of the movable blade holder, and the upper end of the elastic blade and the upper end of the movable blade are respectively contacted with the inner end surface of the static blade net. When the movable knife rest is driven by the driving mechanism to swing in a reciprocating mode, the movable knife blade and the elastic blade can synchronously move in a reciprocating mode and are matched with the inner end face of the static knife net to clamp the beard, and then the root of the beard can be pulled out of the surface of the skin as far as possible. Then, when the movable blade passes through the beard inlet hole on the static blade net, the beard can be directly cut off, and the root of the beard can be automatically retracted into the pore in the skin under the resilience force of the skin, so that the root of the beard can not be exposed out of the skin, and the trimming effect of the beard is improved.

Drawings

FIG. 1 is a sectional view of a razor head with a pre-hair-stretching function according to an embodiment of the present invention

FIG. 2 is a perspective view of an elastic sheet according to an embodiment of the present invention

FIG. 3 is a partial enlarged view of an elastic sheet according to an embodiment of the present invention

FIG. 4 is a perspective view of the movable blade of the embodiment of the present invention

FIG. 5 is a perspective view of the elastic blade and the movable blade holder according to the embodiment of the present invention

Detailed Description

The embodiments of the invention will be further explained with reference to the drawings in which:

as shown in fig. 1-5, the invention relates to a razor head with a hair pre-stretching function, which comprises a static knife mesh 1 and a movable knife blade 2, wherein the movable knife blade 2 is arranged in the static knife mesh 1 and is attached to the inner end surface of the static knife mesh 1, and the movable knife blade 2 is fixed on a movable knife rest 3; the movable knife rest 3 is also provided with an elastic blade 4, the elastic blade 4 is arranged between two adjacent movable knife blades 2 and is connected with the movable knife rest 3, and the distance L1 between the elastic blade 4 and the movable knife blades 2 is smaller than the single-side swing distance of the movable knife rest 3; the projected side line of the upper end of the elastic blade 4 is overlapped with the projected side line of the upper end of the movable blade 2 when the elastic blade is seen from the swinging direction, and the upper ends of the elastic blade 4 and the movable blade 2 are respectively attached to the inner end surface of the static blade net 1 and arc angles 41 are arranged on two sides of the upper end of the elastic blade 4. Elastic blades 4 are additionally arranged between two adjacent movable blades 2, the distance L1 between the elastic blades 4 and the movable blades 2 is smaller than the single-side swing distance of the movable blade carrier 3, and the projection side lines of the elastic blades 4 are overlapped with the projection side lines of the movable blades 2 and are respectively contacted with the inner end faces of the static blade net 1. When the movable knife rest 3 is driven by the driving mechanism to swing in a reciprocating way, the movable knife blade 2 and the elastic blade 4 can synchronously move in a reciprocating way, and two conditions can occur after beards enter the static knife net 1:

one is that after a beard passes through a beard inlet hole on the static knife net 1, the beard firstly contacts with the elastic sheet 4, because the two sides of the end part of the elastic sheet 4 contacting with the inner end surface of the static knife net 1 are provided with arc angles 41, the elastic sheet 4 does not have the hair cutting capability, the elastic sheet 4 can only push the beard to move along the inner end surface of the static knife net 1 to the swing direction and is influenced by the diameter of the beard, when the elastic sheet 4 moves, the beard arranged between the elastic sheet 4 and the static knife net 1 can also move along with the elastic sheet, and thus the root of the beard can be pulled out of the skin surface as far as possible. Then, when the movable blade 2 passes through the beard inlet hole on the static blade net 1, the beard can be directly cut off, and the root of the beard can be automatically retracted into the pore in the skin under the resilience force of the skin, so that the root of the beard can not be exposed out of the skin, and the trimming effect of the beard is improved.

The second is that the beard is firstly contacted with the movable blade 2 after passing through the beard feeding hole on the static blade net 1, so that when the movable cutter holder 3 swings back and forth, the movable blade 2 can directly cut off the beard when passing through the beard feeding hole of the static blade net 1, but the residual length of the root of the beard is relatively long. Because the swing frequency of the movable blade carrier 3 is up to thousands of times or even thousands of times per minute, when the beard is firstly contacted with the movable blade 2 and cut off, and the movable blade carrier 3 swings reversely, the elastic blade 4 can repeat the working mode under the first condition to pull out the root of the beard remained on the surface of the skin and cut off by the driven blade 2, and the root of the beard can automatically retract into the pore in the skin under the resilience force of the skin, so that the root of the beard can not be exposed out of the skin, and the trimming effect of the beard is improved.

The hair-pulling effect is guaranteed, meanwhile, the skin is prevented from being pricked due to the fact that the hair-pulling length is too large, the distance L1 between the elastic sheet 4 and the adjacent movable blade 2 is 0.3 mm-1.2 mm, preferably 0.5mm, after a beard enters the static blade net 1 through the beard inlet hole, the elastic sheet 4 cannot immediately pull the beard due to the influence of the diameter of the beard inlet hole, the elastic sheet 4 can be matched with the inner end face of the static blade net 1 to pull the beard only after moving across the beard inlet hole, and the actual length of the hair-pulling is smaller than the distance between the elastic sheet 4 and the movable blade 2. Because the hair follicle is about 4mm generally under the skin, when the length of napping is less than the distance between elastic blade 4 and moving blade 2, not only the length of napping has been guaranteed, has promoted the effect that the beard was pruned. Moreover, the skin does not have the same pricking feeling when the hair is pulled, and the comfort level during shaving is ensured. Certainly, the distance between the elastic blade 4 and the movable blade 2 can be set to be larger, and specifically can be set according to the swing distance of the movable blade holder 3, the single-side swing distance of the movable blade holder 3 in the shaver under the conventional condition is generally about 0.75mm to 1.3mm, for example, when the single-side swing distance of the movable blade holder 3 is 1.0mm, the distance between the elastic blade 4 and the movable blade 2 can be set to be 0.6mm or 0.7mm, and the like, which is smaller than the single-side swing distance of the movable blade holder 3. When the single-side swing distance of the movable knife rest 3 is 1.2mm, the distance between the elastic blade 4 and the movable blade 2 can be set to be 0.8mm or 1.0mm and the like. In short, one principle is that the distance between the elastic blade 4 and the movable blade 2 is increased correspondingly when the swing distance of the movable blade holder 3 is increased. Conversely, the distance between the elastic blade 4 and the movable blade 2 can be set smaller as the swing distance of the movable blade holder 3 is smaller.

In order to ensure the napping effect of the elastic sheet 4, the thickness H of the elastic sheet 4 is between 0.05mm and 0.3mm, and is preferably 0.08 mm. Thus, the elastic sheet 4 is matched with the static knife net 1 to pull out beard roots in hair follicles, and the skin is pulled out, so that the shaving effect of the beards is improved, meanwhile, the elastic sheet can be effectively prevented from being distorted and deformed, and the hair pulling effect of the elastic sheet 4 is ensured. The thickness of the elastic sheet 4 can be set according to the metal materials with different rigidity strengths, for example, when the rigidity strength of the metal material is higher, the thickness of the elastic sheet 4 can be set to be smaller; when the rigidity strength of the metal material is relatively reduced, the thickness of the elastic sheet 4 can be correspondingly increased to avoid the elastic sheet 4 from being distorted and deformed in the napping process, and the napping effect is ensured. In the actual production process, the elastic sheet 4 can also be made of a plastic material, and when the elastic sheet 4 is made of the plastic material, the thickness of the elastic sheet 4 cannot be smaller than 0.3 mm.

In order to prevent the beard from being cut off by the elastic sheet 4 to influence the napping effect in the napping process, two sides of the upper end of the elastic sheet 4 are respectively provided with an arc angle 41 with the R being less than 0.1 mm. Arc angles 41 with the R smaller than 0.1mm are arranged on two sides of the end face, which is attached to the inner end face of the static knife net 1, of the elastic sheet 4, so that acute angles on two sides of the elastic sheet 4 are passivated. Thus, after the beard enters the static knife net 1 through the beard inlet, the arc angles 41 at the two sides of the upper end surface of the elastic sheet 4 have no cutting capability, so that the elastic sheet 4 can be used for extruding the static knife net 1 and the follow-up knife rest 3 to swing back and forth, the root of the beard is pulled out of the hair follicle in the skin, and the movable knife 2 is used for cutting. After the cutting is finished, the root of the beard is automatically retracted into pores of the skin under the resilience force of the skin, so that the residual root of the beard is prevented from being exposed out of the surface of the skin, and the trimming effect of the beard is improved. Of course, the chamfer radius of the arc angle 41 on both sides of the upper end of the elastic sheet 4 can be set larger, which can be determined according to the thickness of the elastic sheet 4. When the thickness of the elastic sheet 4 is thicker, the chamfer radius of the arc angle 41 can be correspondingly set to be larger, but the elastic sheet 4 is only required to be attached to the inner end face of the static knife net 1 and does not have cutting capability.

Because both sides of the static knife net 1 are fixedly connected with the movable knife rest 3, the middle of the static knife net 1 forms an arc shape, in order to ensure the joint degree of the elastic blade 4 and the inner end part of the static knife net 1 and improve the napping effect and the anti-torsion force, the elastic blade 4 comprises an arch part 42 and an inserting part 43, and the inserting part 43 is arranged on both sides of the arch part 42 and connected with the movable knife rest 3; the arc of the arched part 42 is matched with the arc of the static knife net 1 and is attached to the inner end surface of the static knife net 1; the height of the arch 42 is no more than half of the outer diameter of the arch 42. The elastic pieces 4 are arranged into the arched parts 42 and the inserting parts 43, and the arched parts 42 are attached to the middle arc-shaped inner end surfaces of the static cutter mesh 1, so that the elastic pieces 4 can perform hair-pulling operation on beards no matter which direction the beards enter the static cutter mesh 1 from the left, the middle and the right of the static cutter mesh 1, and the hair-pulling effect of the shaver head is ensured. The inserting part 43 is provided with two pieces and fixed on two sides of the arch part 42 respectively to enable the elastic piece 4 to form an inverted U shape with an opening, and the outer sides of the two inserting parts 43 are vertical straight edges, so that the inserting part 43 can be prevented from interfering with the installation and fixation of the static knife net 1 when the elastic piece 4 is installed. Secondly, the height of the arch part 42 is not more than half of the bending outer diameter of the arch part 42, so that in the production process, the material can be saved, the production cost can be reduced, meanwhile, the torsion deformation of the arch part 42 in the napping process can be effectively avoided, and the napping performance of the elastic sheet 4 is ensured. When the shaver head is used, the small-height arched part 42 can also accelerate broken beards to fall into the collecting groove below the precession shaver holder 3 more quickly, so that the broken beards are effectively prevented from blocking beard channels between the elastic blades 4 and the movable blade 2 under the action of the adhesive force of grease, and the use performance of the shaver head is ensured.

In order to ensure the galling performance of the elastic blade 4 and improve the connection firmness of the elastic blade 4 and the movable knife rest 3, the insertion part 43 is integrally formed with the movable knife rest 3 through integral injection molding. In the production process, can put into injection mold with stamping forming's elastic sheet 4 earlier, then through integrative injection moulding technology with elastic sheet 4 and move knife rest 3 integrated into one piece, in the use, just can prevent effectively that grafting portion 43 from taking place the displacement or misplace and influence the napping performance of elastic sheet 4 to promote elastic sheet 4 and move the firm in connection degree of knife rest 3.

Compared with the connection mode that the elastic blade 4 and the movable knife rest 3 are integrally molded, the insertion part 43 can float up and down and is connected and fixed with the movable knife rest 3, and the galling function of the elastic blade 4 can also be realized (the structure is a conventional floating structure, so an attached drawing is not provided), the installation mode is that one end of the insertion part 43 penetrates through the movable knife rest 3, and an elastic part (such as a metal elastic sheet) is additionally arranged at the end part of the insertion part 43 and is abutted against the bottom part of the movable knife rest 3, so that the arch part 42 is always attached to the inner end face of the static knife net 1. Thus, when in use, the arched part 42 can be matched with the inner end surface of the static knife net 1 under the action of the elastic element to clamp the beard and enable the beard follow-up knife rest 3 and the elastic sheet 4 to swing to realize napping operation, and after the static knife net 1 is stressed, the elastic sheet 4 can move downwards to give up a buffer space to ensure that the static knife net 1 is stressed and damaged. The elastic sheet 4 and the movable tool holder 3 are connected and fixed by integral injection molding or floating connection according to the requirements of users, and the implementation is not further limited.

In order to facilitate the production and processing of the razor head, the movable blade 2 is composed of a plurality of independent metal substrates (not shown in the figure), each metal is basically fixedly arranged on the movable blade holder 3 at intervals, and the elastic sheet 4 is arranged between two adjacent metal substrates. The movable blade 2 is made of independent metal substrates, so that the movable blade 2 can be greatly convenient to produce and process, the movable blade 2 can be formed at one time through a stamping process, and then the independent movable blades 2 are placed in an injection mold of the movable blade holder 3 to be integrally injection-molded, so that the installation firmness of each movable blade 2, each elastic blade 4 and the movable blade holder 3 is guaranteed.

Although the independent moving blade 2 can be formed at one time through a simple stamping process, in the injection molding process, the independent moving blade 2 needs to be manually placed in a mold one by one, and the production benefit is low, therefore, the application also provides the technical scheme of the integrated moving blade 2, the moving blade 2 comprises a plate body 21, a plurality of rows of beard holes 22 are formed in the plate body 21, so that a plurality of cutting teeth 23 are formed on the plate body 21, and two sides of the plate body 21 are respectively clamped with or riveted with two sides of the moving blade holder 3; the elastic blade 4 is fixed on the movable knife rest 3 and is positioned in the beard discharge hole 22. The plate body 21 is punched with the beard-arranging holes 22 to form the cutting teeth 23 on the plate body 21, and each cutting tooth 23 is respectively attached to the inner end face of the static knife net 1, and the elastic blade 4 is fixed on the movable knife rest 3 and positioned in the middle of the beard-arranging hole 22 on the plate body 21, so that the movable knife rest 3 can be conveniently integrally formed, but the movable knife rest 2 is fixed with the movable knife rest 3 by utilizing structures such as buckles in the installation process, the connection firmness of the movable knife rest 2 is weaker than that of an independent movable knife rest, and the movable knife rest is convenient to produce and assemble. The specific structure of the movable blade 2 can be determined according to the requirements of users.

On the basis of the technical scheme, the applicant also provides a technical scheme of a reciprocating shaver, which comprises the shaver head with the hair pre-stretching function.

The above examples should not be construed as limiting the present invention, but any modifications made based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims (10)

1. The shaver head with the hair pre-stretching function comprises a static cutter mesh and a movable cutter, wherein the movable cutter is arranged in the static cutter mesh and is attached to the inner end surface of the static cutter mesh, and the movable cutter is fixed on a movable cutter frame; the elastic blade is arranged between two adjacent movable blades and connected with the movable blade holder, and the distance L1 between the elastic blade and the movable blade is smaller than the single-side swing distance of the movable blade holder; the projected side line of the upper end of the elastic blade is overlapped with the projected side line of the upper end of the movable blade when the elastic blade is seen from the swinging direction, and the upper end of the elastic blade and the upper end of the movable blade are respectively attached to the inner end surface of the static knife net and arc angles are arranged on two sides of the upper end of the elastic blade.

2. The razor head with pre-hair-stretching function as claimed in claim 1, wherein the distance L1 between the elastic blade and the adjacent movable blade is between 0.3mm and 1.2 mm.

3. The razor head with pre-hair-stretching function as recited in claim 1 wherein said resilient tab has a thickness H of between 0.05mm and 0.3 mm.

4. The razor head with pre-hair-stretching function as claimed in claim 1, wherein both sides of the upper end of the resilient piece are respectively provided with an arc angle R < 0.1 mm.

5. The razor head with pre-hair-stretching function as claimed in claim 1, wherein the resilient tab comprises an arch portion and an insertion portion, the insertion portion is disposed at both sides of the arch portion and connected to the movable blade holder; the arc of the arch part is matched with the arc of the static knife net and is attached to the inner end surface of the static knife net; the height of the arch is no more than half of the outer diameter of the arch.

6. The razor head with pre-hair-stretching function as claimed in claim 5, wherein the insertion part is formed integrally with the movable blade holder by injection molding.

7. The razor head with the hair pre-stretching function as recited in claim 5, wherein the inserting portion is connected and fixed with the movable blade holder in a vertically floating manner and the arched portion is always attached to the inner end surface of the static blade holder under the action of the elastic member.

8. The razor head with pre-hair-stretching function as claimed in claim 1, wherein the movable blade is formed by a plurality of independent metal substrates, each metal substrate is fixedly mounted on the movable blade holder at intervals, and the elastic blade is disposed between two adjacent metal substrates.

9. The razor head with the pre-hair-stretching function as claimed in claim 1, wherein the movable blade comprises a plate body, a plurality of beard-arranging holes are formed in the plate body to form a plurality of cutting teeth on the plate body, and two sides of the plate body are respectively clamped and fixed with two sides of the movable blade holder; the elastic blade is fixed on the movable knife rest and is positioned in the beard-arranging hole.

10. A reciprocating shaver, characterized in that it comprises a shaver head with a hair pre-stretching function as described in any one of 1-9.

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