Cutting structure and knife net of rotary shaver

Abstract

The cutting structure of the rotary shaver comprises a shaver net and a movable shaver, the shaver net is provided with an annular shaving track and a beard inlet groove formed along the shaving track, movable shaver teeth are arranged on the movable shaver, and the beard inlet groove is formed along the shaving track by taking the rotating direction of the movable shaver teeth as the front. The beard inlet groove comprises an inclined section inclining forwards and a rotating section rotating backwards from the front end of the inclined section, the inclined section extends from one side of the shaving track to the middle of the shaving track, a concave cutting edge is arranged at the front end of the movable cutter tooth, and the rotating track of the cutting edge stretches across the rotating section from the inclined section. In the process that the cutting edge rotates to pass through the beard inlet groove, the cutting edge and the beard inlet groove form a surrounding space from large to small, and the beard cutter has the advantages of being simple in structure and good in safety. The utility model further discloses a razor net of the rotary razor, and the razor net has the advantages of being simple in structure and good in safety.

Description

Technical Field

[0001] The utility model relates to a cutting structure of a rotary shaver, and also relates to a cutter net of the rotary shaver.

Background Art

[0002] The cutting component of a rotary shaver consists of a cutter net and a moving cutter, and its cutting structure is composed of a hair inlet groove on the cutter net and a cutting edge of the moving cutter teeth. Usually, the hair inlet groove and the cutting edge of the moving cutter teeth are basically straight structures. The hair inlet groove is basically horizontal on the shaving track to block the hair, so that the moving cutter teeth rotating along the shaving track can cut off the hair. In order to prevent the cutting edge from getting stuck in the hair inlet groove, during the rotation of the moving cutter teeth, the cutting edge is always at a certain angle with the hair inlet groove. When the cutting edge and the front edge of the hair inlet groove cooperate for cutting, an included angle will be formed between the two, similar to the structure of scissors, and the beard is likely to escape along the opening of the included angle without being cut off.

[0003] Moreover, the hair inlet groove is usually a straight groove with side openings at both ends. When the shaver works, the cutter net presses on the skin and moves. The soft skin is likely to be squeezed into the hair inlet groove too deep and slightly into the shaving track. The skin squeezed into the shaving track is easily blocked by the front edge of the hair inlet groove and is cut and injured by the rotating cutting edge. Therefore, generally, the safety is improved by reducing the width of the hair inlet groove and increasing the thickness of the cutter net top at the shaving track. However, reducing the width of the hair inlet groove reduces the hair inlet efficiency, and increasing the thickness of the cutter net top at the shaving track will reduce the shaving cleanliness.

[0004] The hair inlet groove has side openings. When the top surface of the cutter net presses on the skin, the skin and hair can arch along the side surface of the cutter net connected to the top surface of the cutter net. In the up and down direction, the side openings are generally set with a certain depth to facilitate the hair to enter the side openings. Usually, the depth of the side openings is more than 2 times the thickness of the cutter net top at the shaving track. Especially, the depth of the side openings corresponding to the outer side surface of the cutter net is deeper. For the straight groove structure of the hair inlet groove, when the cutter net is moved, the skin is likely to be squeezed into the side openings too deep and slide along the hair inlet groove into the moving range of the cutting edge and be cut.

[0005] The present utility model is made based on this situation.

Content of the Utility Model

[0006] The technical problem to be solved by the present utility model is to provide a cutting structure of a rotary shaver, which has a simple structure, good safety, is beneficial to increasing the width of the hair inlet groove and reducing the thickness of the cutter net top at the shaving track.

[0007] The present utility model is realized through the following technical solutions:

[0008] The cutting structure of a rotary shaver, comprising a knife net and a moving knife. An annular shaving track and beard inlet grooves arranged along the shaving track are provided on the knife net. Moving knife teeth are provided on the moving knife. Taking the direction of rotation of the moving knife teeth as the front, each beard inlet groove includes an obliquely forward inclined section and a turning section that turns backward from the front end of the inclined section. The inclined section extends from one side of the shaving track towards the middle of the shaving track. The front end of the moving knife tooth is provided with an inwardly concave cutting edge. The rotation track of the cutting edge spans from the inclined section to the turning section. During the process of the cutting edge rotating past the position of the beard inlet groove, the cutting edge and the beard inlet groove form an enclosed space that gradually decreases from large to small.

[0009] In an embodiment of the cutting structure of the rotary shaver as described above, among the beard inlet grooves on the same shaving track, there are two types: an inner beard inlet groove and an outer beard inlet groove. The inner end of the inner beard inlet groove has a side opening while the outer end is a closed end. The outer end of the outer beard inlet groove has a side opening while the inner end is a closed end. The inclined section of the inner beard inlet groove extends obliquely forward from the inner side of the annular shaving track towards the middle of the shaving track. The inclined section of the outer beard inlet groove extends obliquely forward from the outer side of the annular shaving track towards the middle of the shaving track. The inner beard inlet groove and the outer beard inlet groove are arranged alternately. In the direction of rotation of the moving knife teeth, relative to the turning position between the turning section and the inclined section, the turning section is arranged in front of the turning position or on the same radial line as the turning position. The cutting edge includes an inner cutting edge and an outer cutting edge that form an angle, and an intermediate cutting edge connecting the inner cutting edge and the outer cutting edge. The intermediate cutting edge is located behind the inner cutting edge and the outer cutting edge. The rotation track of the cutting edge spans from the inclined section of the inner beard inlet groove to the inclined section of the outer beard inlet groove and completely covers the turning sections corresponding to the inner beard inlet groove and the outer beard inlet groove.

[0010] In another embodiment, among the beard inlet grooves on the same shaving track, there are two types: an inner beard inlet groove and an outer beard inlet groove. The inner end of the inner beard inlet groove has a side opening while the outer end is a closed end. The outer end of the outer beard inlet groove has a side opening while the inner end is a closed end. The inclined section of the inner beard inlet groove extends obliquely forward from the inner side of the annular shaving track towards the middle of the shaving track. The inclined section of the outer beard inlet groove extends obliquely forward from the outer side of the annular shaving track towards the middle of the shaving track. The inner beard inlet groove is located inside the area enclosed by multiple outer beard inlet grooves. In the direction of rotation of the moving knife teeth, relative to the turning position between the turning section and the inclined section, the turning section is arranged in front of the turning position or on the same radial line as the turning position. The cutting edge includes an inner cutting edge and an outer cutting edge that form an angle, and an intermediate cutting edge connecting the inner cutting edge and the outer cutting edge. The intermediate cutting edge is located behind the inner cutting edge and the outer cutting edge. The rotation track of the cutting edge spans from the inclined section of the inner beard inlet groove to the inclined section of the outer beard inlet groove.

[0011] In another embodiment, a plurality of adjacent hair inlet grooves are arranged uniformly and circumferentially. In the direction of rotation of the movable cutter teeth, with respect to the turning position between the turning section and the inclined section, the turning section is arranged in front of the turning position or in the same radial direction as the turning position.

[0012] Preferably, the hair inlet grooves on the same shaving track have side openings at the outer ends and closed ends at the inner ends. The cutting edge includes an inner cutting edge and an outer cutting edge that form an angle, and an intermediate cutting edge connecting the inner cutting edge and the outer cutting edge. In the direction of rotation of the movable cutter teeth, the intermediate cutting edge is located behind the inner cutting edge and the outer cutting edge, or the inner cutting edge is arranged behind the intermediate cutting edge or in the same radial direction as the intermediate cutting edge, or the outer cutting edge is arranged behind the intermediate cutting edge or in the same radial direction as the intermediate cutting edge.

[0013] In another preferred embodiment, the hair inlet grooves on the same shaving track have side openings at the outer ends and the inner ends respectively. The cutting edge includes an inner cutting edge and an outer cutting edge that form an angle, and an intermediate cutting edge connecting the inner cutting edge and the outer cutting edge. The intermediate cutting edge is located behind the inner cutting edge and the outer cutting edge, or the outer cutting edge is arranged behind the intermediate cutting edge or in the same radial direction as the intermediate cutting edge.

[0014] In another embodiment, a plurality of adjacent hair inlet grooves face the same direction and are arranged circumferentially. In the direction of rotation of the movable cutter teeth, with respect to the turning position between the turning section and the inclined section, the turning section is arranged behind the turning position. The cutting edge includes an inner cutting edge and an outer cutting edge that form an angle, and an intermediate cutting edge connecting the inner cutting edge and the outer cutting edge. One of the inner cutting edge and the outer cutting edge is arranged behind the intermediate cutting edge or in the same radial direction as the intermediate cutting edge.

[0015] For the cutting structure of the rotary shaver as described above, the inclined section and the turning section form a V-shaped or C-shaped structure, and the cutting edge is a V-shaped or C-shaped structure.

[0016] For the cutting structure of the rotary shaver as described above, the cutter net is formed by powder metallurgy, the hair inlet grooves are injection-molded on the cutter net, the upper port of the hair inlet groove is provided with a rounded corner, and the lower edge of the front edge of the hair inlet groove is provided with an acute cutting edge.

[0017] For the cutting structure of the rotary shaver as described above, the hair inlet groove includes an inlet section with a side opening. In the direction of rotation of the movable cutter teeth, the inlet section slopes obliquely forward from the inside to the outside of the hair inlet groove, and the cutting edge rotates in the inner area of the inlet section.

[0018] Another technical problem to be solved by the present utility model is to provide a cutter net of a rotary shaver, which has the characteristics of simple structure and good safety.

[0019] The present utility model is realized by the following technical solutions:

[0020] The cutter net of the rotary shaver includes a cutter net body. An annular shaving track and beard inlet grooves arranged along the shaving track are provided on the top of the cutter net body. Taking the direction of the rotation of the moving cutter teeth as the front, each beard inlet groove includes an obliquely forward inclined section and a turning section that turns backward from the front end of the inclined section. On the same shaving track, there are two types of beard inlet grooves, namely inner beard inlet grooves and outer beard inlet grooves. The inner end of the inner beard inlet groove has a side opening while the outer end is a closed end, and the outer end of the outer beard inlet groove has a side opening while the inner end is a closed end. The inclined section of the inner beard inlet groove obliquely extends forward from the inner side of the annular shaving track to the middle of the shaving track, and the inclined section of the outer beard inlet groove obliquely extends forward from the outer side of the annular shaving track to the middle of the shaving track. The inner beard inlet grooves and the outer beard inlet grooves are arranged alternately or the inner beard inlet grooves are located inside the area surrounded by a plurality of outer beard inlet grooves. In the direction of the rotation of the moving cutter teeth, relative to the turning position between the turning section and the inclined section, the turning section is arranged in front of the turning position or on the same radial direction as the turning position.

[0021] Another technical problem to be solved by the present utility model is to provide a cutter net of a rotary shaver, which has the characteristics of simple structure and good safety.

[0022] The present utility model is realized by the following technical solutions:

[0023] The cutter net of the rotary shaver includes a cutter net body. An annular shaving track and beard inlet grooves arranged along the shaving track are provided on the top of the cutter net body. Taking the direction of the rotation of the moving cutter teeth as the front, each beard inlet groove includes an obliquely forward inclined section and a turning section that turns backward from the front end of the inclined section. The inclined section extends from one side of the shaving track to the middle of the shaving track. The beard inlet groove further includes an inlet section located at one or both ends of the beard inlet groove. The inlet section has a side opening. In the direction of the rotation of the moving cutter teeth, the inlet section obliquely extends forward from the inside of the beard inlet groove to the outside.

[0024] Compared with the prior art, the utility model has the following advantages: the whisker inlet groove has an inclined section that slopes forward and a turning section that turns back from the inclined section. The front cutting edge of the moving cutter tooth is a concave structure. During the process of the cutting edge rotating past the position of the whisker inlet groove, the cutting edge and the whisker inlet groove form an enclosed space that gradually decreases in size. The inclined section is beneficial for the skin that has slightly squeezed into the shaving track to be impacted and deformed forward when facing the moving cutter tooth, reducing the damage to the skin. The hair is surrounded by the cutting edge and the whisker inlet groove in the enclosed space, which helps prevent the hair from escaping and cuts the hair. When the cutter net moves while pressing on the skin, the inclined section and the turning section arranged at an angle are beneficial for blocking the skin from squeezing into the inside of the shaving track. The cutting structure of this rotary shaver has good safety, which is beneficial for increasing the width of the whisker inlet groove and reducing the thickness of the top of the cutter net at the shaving track.

Description of the Drawings

[0025] The following further details the specific embodiments of the present utility model in conjunction with the drawings, where:

[0026] Figure 1 is an exploded view of an embodiment in which the cutting structure of the rotary shaver of the present utility model is composed of a first cutter net and a first moving cutter;

[0027] Figure 2 is a bottom view of an embodiment of the cutting structure of the rotary shaver of the present utility model;

[0028] Figure 3 is a top view of an embodiment of the cutting structure of the rotary shaver of the present utility model;

[0029] Figures 4 - 5 is a schematic diagram of the enclosed space of the cutting structure of the rotary shaver of the present utility model gradually decreasing in size;

[0030] Figure 6 is a schematic structural diagram of a second embodiment of the cutter net;

[0031] Figure 7 is provided with Figure 6 a bottom view of an embodiment of the cutting structure of the rotary shaver with the cutter net in;

[0032] Figure 8 is a schematic structural diagram of an embodiment in which the cutting edge of the moving cutter is C-shaped;

[0033] Figure 9 is provided with Figure 6 the cutter net in Figure 7 and a bottom view of an embodiment of the cutting structure of the rotary shaver with the moving cutter in;

[0034] Figure 10 is a schematic structural diagram of a third embodiment of the moving cutter;

[0035] Figure 11 is the bottom view of an embodiment of the cutting structure of a rotary shaver having the Figure 6 blade net in Figure 10 and the moving blade in ;

[0036] Figure 12 is a schematic structural view of a fourth embodiment of the moving blade;

[0037] Figure 13 is the bottom view of an embodiment of the cutting structure of a rotary shaver having the Figure 6 blade net in Figure 12 and the moving blade in ;

[0038] Figure 14 is a schematic structural view of a third embodiment of the blade net;

[0039] Figure 15 is the bottom view of an embodiment of the cutting structure of a rotary shaver having the Figure 14 blade net in ;

[0040] Figure 16 is a schematic structural view of a fourth embodiment of the blade net;

[0041] Figure 17 is the bottom view of an embodiment of the cutting structure of a rotary shaver having the Figure 16 blade net in Figure 12 and the moving blade in ;

[0042] Figure 18 is the top view of a fifth embodiment of the blade net and the corresponding cutting structure of the rotary shaver;

[0043] Figure 19 is the bottom view of an embodiment of the cutting structure of a rotary shaver having the Figure 18 blade net in ;

[0044] Figure 20 is the top view of a sixth embodiment of the blade net and the corresponding cutting structure of the rotary shaver;

[0045] Figure 21 is a cross-sectional view of the moving blade rotating around the central axis Z of the blade net;

[0046] Figure 22 is a schematic structural view of the cross-section of the whisker inlet hole;

[0047] Figure 23 The top view of a seventh embodiment of the blade net and the corresponding cutting structure of the rotary shaver;

[0048] Figure 24 The top view of an eighth embodiment of the blade net.

Detailed Implementation Manner

[0049] The present utility model will be further described below in conjunction with the accompanying drawings:

[0050] As Figures 1 to 24 shown, the cutting structure of the rotary shaver includes a cutter net 1 and a moving cutter 2. An annular shaving track 11 and a whisker inlet groove 12 arranged along the shaving track 11 are provided on the cutter net 1. Moving cutter teeth 21 are provided on the moving cutter 2. Taking the direction of rotation of the moving cutter teeth 21 as the front, the whisker inlet groove 12 includes an obliquely forward inclined section 121 and a turning section 122 that turns back from the front end of the inclined section 121. The inclined section 121 extends from one side of the shaving track 11 to the middle of the shaving track 11. A concave cutting edge 22 is provided at the front end of the moving cutter teeth 21. As Figure 2 and Figure 23 shown, the annular area between two dotted circles C1 and C2 corresponding to the two innermost and outermost endpoints of the cutting edge 22 is the rotation trajectory of the cutting edge 22. The rotation trajectory of the cutting edge 22 spans from the inclined section 121 to the turning section 122. When the cutting edge 22 rotates past the position of the whisker inlet groove 12, the cutting edge 22 and the whisker inlet groove 12 form a gradually decreasing enclosed space 3.

[0051] As Figure 21 shown, in application, a driving connecting piece 4 is arranged on the moving cutter. A central positioning hole 41 that cooperates with the central positioning post 13 in the middle of the cutter net is provided on the driving connecting piece, so that the moving cutter rotates around the central axis Z of the cutter net during operation.

[0052] The obliquely forward inclined section 121 is beneficial to making the skin squeezed into the shaving track 11 be impacted and deformed forward when facing the moving moving cutter teeth 21, reducing the damage to the skin. The hair is surrounded in the enclosed space 3 by the cutting edge 22 and the whisker inlet groove 12, which is beneficial to preventing the hair from escaping and cutting the hair. When the cutter net moves on the skin, the obliquely arranged inclined section 121 and the turning section 122 are beneficial to blocking the skin from being squeezed into the inside of the shaving track 11. The cutting structure of this rotary shaver has good safety, is beneficial to increasing the width of the whisker inlet groove 12 and reducing the thickness of the cutter net top at the shaving track.

[0053] Furthermore, the inclined section 121 and the turning section 122 form a V-shaped or C-shaped structure, and the cutting edge 22 is a V-shaped or C-shaped structure.

[0054] Furthermore, as Figure 22 shown, a chamfered corner r is provided at the upper port of the whisker inlet groove 12, which improves the skin feel and increases the area of the upper port of the whisker inlet groove 12, improving the hair inlet effect.

[0055] Furthermore, as Figure 22As shown, a sharp blade 12b with an acute angle is provided at the lower edge of the front edge of the whisker inlet groove 12 to improve sharpness.

[0056] Furthermore, the cutter net 1 is formed by powder metallurgy, and the whisker inlet groove 12 is injection-molded on the cutter net 1, which is beneficial to forming the non-linear structure of the whisker inlet groove 12, as well as forming the rounded corner r and the sharp blade 12b with an acute angle.

[0057] For the powder metallurgy forming process, it includes the following steps:

[0058] A. Inject the raw material with stainless steel powder through an injection molding machine to obtain a cutter net blank. The cutter net blank includes a cutter net body. The cutter net body has an inner cavity with an opening facing downwards. A plurality of downwardly concave hair inlet grooves are integrally formed on the top of the cutter net body. The hair inlet grooves have groove walls that are inclined upwards and outwards. A rounded corner r is formed between the groove walls and the top surface of the top of the cutter net body; B. Place the cutter net blank in a degreasing furnace for degreasing; C. Place the degreased cutter net blank in a sintering furnace for sintering; D. Heat-treat and harden the sintered cutter net blank; E. Cut off part of the material from the bottom of the top of the cutter net body to form a shaving track for the rotary movement of the moving cutter teeth, and a sharp blade is formed at the groove wall where the front edge of the hair inlet groove is inclined upwards and outwards;

[0059] Among them, for the raw material with stainless steel powder, the stainless steel powder and POM powder are mixed evenly and then made into granular raw material through a granulator. The mass ratio of POM powder is 5% - 15%; the stainless steel powder can be selected from 440C stainless steel powder or 316 stainless steel powder or 420 stainless steel powder.

[0060] Furthermore,

[0061] In Figures 1 - 5In the illustrated embodiment, the hair inlet grooves 12 on the same shaving track 11 include two types: an inner hair inlet groove 12a and an outer hair inlet groove 12b. The inner end of the inner hair inlet groove 12a has a side opening 123 and the outer end is a closed end. The outer hair inlet groove 12b has a side opening 123 at the outer end and a closed end at the inner end. The inclined section 121 of the inner hair inlet groove 12a slopes obliquely forward from the annular inner side of the shaving track 11 towards the middle of the shaving track 11. The inclined section 121 of the outer hair inlet groove 12b slopes obliquely forward from the annular outer side of the shaving track 11 towards the middle of the shaving track 11. The inner hair inlet groove 12a and the outer hair inlet groove 12b are arranged alternately. Here, the alternate arrangement means that there is an overlapping part in the rotation regions where the inner hair inlet groove 12a and the outer hair inlet groove 12b respectively rotate one week around the central axis Z. In the direction X of the rotation of the moving cutter teeth 21, relative to the turning position between the turning section 122 and the inclined section 121, the turning section 122 is arranged in front of the turning position or on the same radial R1 as the turning position. The outer hair inlet groove 12b facilitates the entry of the hair on the annular outer side of the shaving track 11, and the inner hair inlet groove 12a facilitates the entry of the hair on the annular inner side of the shaving track 11. The closed end is conducive to preventing the hair from escaping, and the closed end is beneficial for blocking the skin from entering the turning section 122. At the same time, it is also beneficial for blocking the skin from moving along the hair inlet groove 12 towards the closed end, which is conducive to avoiding the skin being squeezed into the inside of the shaving track 11 and improving the safety of the turning section 122.

[0062] The cutting edge 22 includes an inner cutting edge 221 and an outer cutting edge 223 that form an angle, and an intermediate cutting edge 222 connecting the inner cutting edge 221 and the outer cutting edge 223. The intermediate cutting edge 222 is located behind the inner cutting edge 221 and the outer cutting edge 223. Since the cutting edge is an inwardly concave structure, the outer cutting edge 223 slopes obliquely backward from the outer end of the cutting edge towards the middle, and the inner cutting edge 221 slopes obliquely backward from the inner end of the cutting edge towards the middle. This is conducive to simultaneously increasing the angle between the outer cutting edge 223 and the inclined section 121 of the outer hair inlet groove 12b and the angle between the inner cutting edge 221 and the inclined section 121 on the inner hair inlet groove 12a. Preferably, the angle is above 60°, so as to facilitate the hair or skin that touches the cutting edge 22 in the inclined sections 121 of the inner hair inlet groove 12a and the outer hair inlet groove 12b to shift and deform along their respective inclined sections 121 towards the turning section 122, reduce the damage to the skin, and improve the safety of cutting. The shifted hair is cut in the narrowing surrounding space 3.

[0063] Since the closed ends corresponding to the inner hair inlet grooves 12a and the outer hair inlet grooves 12b are arranged on the corresponding rotating sections 122, the rotation locus of the cutting edge 22 spans from the inclined section 121 of the inner hair inlet groove 12a to the inclined section 121 of the outer hair inlet groove 12b, and completely covers the rotating sections 122 corresponding to the inner hair inlet groove 12a and the outer hair inlet groove 12b, so that when the cutting edge 22 moves past the rotating section 122, the hair in the rotating section 122 can be cut, avoiding the existence of a gap between the moving cutter teeth 21 and the closed end, which may cause the hair clamped therein not to be cut and result in hair pulling.

[0064] During shaving, the skin outside the hair inlet groove 12 is pressed by the top surface of the cutter net. Since the skin squeezed into the hair inlet groove 12 has tension and elasticity, the skin in the hair inlet groove 12 is pushed by the cutting edge and deformed obliquely forward, which is beneficial to reducing the depth of the skin squeezed into the hair inlet groove 12 and reducing the damage to the skin.

[0065] In Figures 18 - 20 the illustrated embodiment, its difference from Figures 1 - 5 the embodiment is that: on the same shaving track, the inner hair inlet groove 12a is located inside the area R3 surrounded by a plurality of outer hair inlet grooves 12b, that is, the inner hair inlet groove 12a and the outer hair inlet grooves 12b are not arranged in an interleaved manner, which is beneficial to arranging a larger number of them circumferentially in the space corresponding to the shaving track 11, with high hair inlet efficiency. The outer hair inlet grooves 12b are located in the outer half-circle area of the shaving track 11, and the inner hair inlet groove 12a is located in the inner half-circle area of the shaving track 11, which is beneficial to reducing the length of the rotating section 122, and quickly reducing the surrounding space 3 during the rotation of the moving cutter to cut the internal hair;

[0066] Among them Figure 18 and Figure 20 the difference between the corresponding embodiments is that: in Figure 18 the embodiment, the rotating sections 122 of the inner hair inlet groove 12a and the rotating sections 122 of the outer hair inlet groove 12b are arranged inside and outside corresponding or substantially corresponding; while in Figure 20 the embodiment, the rotating section 122 of the inner hair inlet groove 12a corresponds between the rotating sections 122 of two adjacent outer hair inlet grooves 12b. On the basis of not reducing the minimum material width of the interval between the inner hair inlet groove 12a and the outer hair inlet grooves 12b, the space can be better utilized to increase the total area of the hair inlet grooves.

[0067] In Figure 6 , 7, in the embodiments shown in FIGS. 9, 11, 13, 14, and 15, a plurality of adjacent hair inlet grooves 12 are arranged uniformly and arranged circumferentially. Here, the uniform arrangement means that they are all arranged on the outer ring or inner ring of the shaving track 11. In the direction of rotation of the moving cutter teeth 21, relative to the turning position between the turning section 122 and the inclined section 121, the turning section 122 is arranged in front of the turning position or on the same radial R1 as the turning position.

[0068] As Figure 6 , 7 , as shown in FIGS. 9, 11, and 13, the hair inlet grooves 12 on the same shaving track 11 have side openings 123 at the outer ends and closed ends at the inner ends. The side openings 123 facilitate the entry of hairs on the outer ring of the shaving track 11, while the closed ends facilitate preventing the hairs from escaping inward. Moreover, the closed ends are conducive to blocking the skin from entering the turning section 122, and at the same time are conducive to blocking the skin from moving along the hair inlet groove 12 towards the closed end, which is beneficial to avoiding the skin being squeezed into the inside of the shaving track 11 and improving the safety of the turning section 122. The cutting edge 22 includes an inner cutting edge 221 and an outer cutting edge 223 that form an angle, and an intermediate cutting edge 222 connecting the inner cutting edge 221 and the outer cutting edge 223. Preferably, when the intermediate cutting edge 222 rotates, it passes through the turning position between the turning section 122 and the inclined section 121, or the trajectory passed by the intermediate cutting edge 222 during rotation is close to the turning position between the turning section 122 and the inclined section 121. Preferably, the rotation trajectory of the cutting edge 22 completely covers the turning section 122 to avoid pulling hairs;

[0069] In the direction X of rotation of the moving cutter teeth 21:

[0070] As Figures 7 - 9 shown, the intermediate cutting edge 222 is located behind the inner cutting edge 221 and the outer cutting edge 223, so that the surrounding space 3 narrows from both sides towards the middle when the cutting edge 22 rotates, which is beneficial to increasing the angle a between the outer cutting edge 223 and the inclined section 121. Preferably, the angle a is above 60°, so as to facilitate the hairs or skin that encounter the outer cutting edge 223 in the inclined section 121 to shift and deform along the inclined section 121. Since the skin squeezed into the hair inlet groove 12 has tension and elasticity, the skin shifts and deforms, which is beneficial to reducing the depth of the skin squeezed into the hair inlet groove 12, reducing the damage to the skin, and improving the safety of cutting. The offset hairs are cut in the narrowing surrounding space 3;

[0071] Or as Figures 10 - 11As shown, the inner cutting edge 221 is arranged behind the middle cutting edge 222 or on the same radial R2 as the middle cutting edge 222. Since the cutting edge has a concave structure, the outer cutting edge 223 slopes obliquely backward from the outer end to the middle of the cutting edge, which is beneficial to increasing the angle α between the outer cutting edge 223 and the inclined section 121. Preferably, the angle α is more than 60°. The angle between the inner cutting edge 221 and the turning section 122 is reduced. A larger angle α between the outer cutting edge 223 and the inclined section 121 is conducive to causing the hair or skin that touches the outer cutting edge 223 in the inclined section 121 to shift and deform along the inclined section 121 toward the turning section 122. Since the skin squeezed into the hair inlet groove 12 has tension and elasticity, the skin shifts and deforms, which is beneficial to reducing the depth of the skin squeezed into the hair inlet groove 12, reducing the damage to the skin, improving the safety of cutting, and the surrounding space 3 shrinks toward the turning section 122. A smaller angle between the inner cutting edge 221 and the turning section 122 makes it easier to cut the hair;

[0072] Or as Figures 12 - 13 As shown, the outer cutting edge 223 is arranged behind the middle cutting edge 222 or on the same radial R2 as the middle cutting edge 222.

[0073] As Figures 14 - 15 As shown, the hair inlet grooves 12 on the same shaving track 11 have side openings 123 at the outer end and the inner end respectively, which is beneficial to the hair entering from the inner and outer sides of the annular shaving track 11. The cutting edge 22 includes an inner cutting edge 221 and an outer cutting edge 223 that form an angle, and a middle cutting edge 222 connecting the inner cutting edge 221 and the outer cutting edge 223. The middle cutting edge 222 is located behind the inner cutting edge 221 and the outer cutting edge 223, or as Figure 12 As shown, the outer cutting edge 223 is arranged behind the middle cutting edge 222 or on the same radial R2 as the middle cutting edge 222, so as to facilitate the cutting edge 22 to close the hair inlet groove 12 from both ends to form the surrounding space 3.

[0074] In Figures 16 - 17 In the shown embodiment, a plurality of adjacent hair inlet grooves 12 face the same direction and are arranged in a circumferential direction. In the rotation direction X of the moving cutter tooth 21, the turning section 122 is arranged behind the turning position with respect to the turning position of the turning section 122 and the inclined section 121. The cutting edge 22 includes an inner cutting edge 221 and an outer cutting edge 223 that form an angle, and a middle cutting edge 222 connecting the inner cutting edge 221 and the outer cutting edge 223. As Figure 10 and Figure 12As shown, one of the inner cutting edge 221 and the outer cutting edge 223 is arranged behind the middle cutting edge 222 or on the same radial R2 as the middle cutting edge 222. The inclined section 121 and the turning section 122 in the whisker inlet groove 12 are respectively inclined forward from the inner and outer sides of the shaving track, so that the skin squeezed into the two can be impacted and deformed forward when it is touched by the cutting edge, reducing the damage to the skin.

[0075] Further, as shown in the Figures 23 - 24 embodiment, the whisker inlet groove 12 further includes an inlet section 124, and the inlet section 124 has a side opening 123. In the direction of rotation of the moving cutter tooth 21, the inlet section 124 is obliquely forward from the inside of the whisker inlet groove 12 to the outside. The cutting edge 22 is located in the inner area of the inlet section 124 and rotates, which can effectively prevent the skin deeply squeezed from the side opening 123 from sliding into the active range of the cutting edge along the whisker inlet groove 12, improving safety. As shown in Figure 23 the figure, the whisker inlet groove is provided with an inlet section 124 and a corresponding side opening 123 at both the inner and outer ends. The inlet sections 124 at both ends are obliquely forward from the inside of the whisker inlet groove 12 to the outside. The inner area of the inlet section 124 refers to the area between the inner and outer inlet sections 124, or as shown in Figure 24 the figure, the whisker inlet groove is only provided with an inlet section 124 that is obliquely forward outward at the outer end.

[0076] As shown in Figures 1 to 5 the cutter net 1 of the rotary shaver, including a cutter net body, is provided with an annular shaving track 11 on the mesh top of the cutter net body and a whisker inlet groove 12 arranged along the shaving track 11. Taking the direction of rotation of the moving cutter tooth 21 as the front, the whisker inlet groove 12 includes an obliquely forward inclined section 121 and a turning section 122 that turns backward from the front end of the inclined section 121. The whisker inlet grooves 12 on the same shaving track 11 include two types: an inner whisker inlet groove 12a and an outer whisker inlet groove 12b. The inner end of the inner whisker inlet groove 12a has a side opening 123 and the outer end is a closed end. The outer end of the outer whisker inlet groove 12b has a side opening 123 and the inner end is a closed end. The inclined section 121 of the inner whisker inlet groove 12a is obliquely forward from the annular inner side of the shaving track 11 to the middle of the shaving track 11. The inclined section 121 of the outer whisker inlet groove 12b is obliquely forward from the annular outer side of the shaving track 11 to the middle of the shaving track 11. The inner whisker inlet groove 12a and the outer whisker inlet groove 12b are arranged alternately. In the direction X of rotation of the moving cutter tooth 21, relative to the turning position of the turning section 122 and the inclined section 121, the turning section 122 is arranged in front of the turning position or on the same radial R1 as the turning position, with simple structure and good safety.

[0077] As shown in Figures 18 to 20The cutter net 1 of the rotary shaver shown includes a cutter net body. An annular shaving track 11 and beard inlet grooves 12 arranged along the shaving track 11 are provided on the net top of the cutter net body. Taking the direction of rotation of the moving cutter teeth 21 as the front, the beard inlet groove 12 includes an obliquely forward inclined section 121 and a turning section 122 that turns backward from the front end of the inclined section 121. The beard inlet grooves 12 on the same shaving track 11 include two types: inner beard inlet grooves 12a and outer beard inlet grooves 12b. The inner end of the inner beard inlet groove 12a has a side opening 123 and the outer end is a closed end. The outer end of the outer beard inlet groove 12b has a side opening 123 and the inner end is a closed end. The inclined section 121 of the inner beard inlet groove 12a obliquely extends forward from the inner side of the annular shaving track 11 to the middle of the shaving track 11. The inclined section 121 of the outer beard inlet groove 12b obliquely extends forward from the outer side of the annular shaving track 11 to the middle of the shaving track 11. The inner beard inlet groove 12a is located inside the area R3 surrounded by a plurality of outer beard inlet grooves 12b. In the direction X of rotation of the moving cutter teeth 21, relative to the turning position of the turning section 122 and the inclined section 121, the turning section 122 is arranged in front of the turning position or on the same radial direction R1 as the turning position. It has a simple structure and good safety performance.

[0078] As Figures 23 to 24 The cutter net 1 of the rotary shaver shown includes a cutter net body. An annular shaving track 11 and beard inlet grooves 12 arranged along the shaving track 11 are provided on the net top of the cutter net body. Taking the direction of rotation of the moving cutter teeth 21 as the front, the beard inlet groove 12 includes an obliquely forward inclined section 121 and a turning section 122 that turns backward from the front end of the inclined section 121. The inclined section 121 extends from one side of the shaving track 11 to the middle of the shaving track 11. The beard inlet groove 12 further includes an inlet section 124 located at one or both ends of the beard inlet groove 12. The inlet section 124 has a side opening 123. In the direction of rotation of the moving cutter teeth 21, the inlet section 124 obliquely extends forward from the inside of the beard inlet groove 12 to the outside. It has a simple structure and good safety performance.

Claims

1. The cutting structure of the rotary shaver is characterized by: The invention comprises a knife net (1) and a movable knife (2), wherein the knife net (1) is provided with an annular shaving track (11) and a beard inlet groove (12) arranged along the shaving track (11), and the movable knife (2) is provided with movable knife teeth (21), and with the rotating direction of the movable knife teeth (21) as the front, the beard inlet groove (12) comprises an inclined section (121) inclined forward and a rotating section (122) rotating backward from the front end of the inclined section (121), and the inclined section (121) is provided with a rotating section (122) rotating backward from the front end of the inclined section (121). 1) extending from one side of the shaving track (11) to the middle of the shaving track (11), the front end of the movable blade tooth (21) is provided with a concave cutting blade (22), the rotation track of the cutting blade (22) spans from the inclined section (121) to the rotating section (122), and in the process of the cutting blade (22) rotating from the position of the beard inlet groove (12), the cutting blade (22) and the beard inlet groove (12) form an enclosed space (3) from large to small.

2. The cutting structure of the rotary shaver according to claim 1, characterized in that: The beard inlet groove (12) on the same shaving track (11) comprises an inner beard inlet groove (12a) and an outer beard inlet groove (12b). The inner end of the inner beard inlet groove (12a) has a side opening (123) and the outer end is a closed end. The outer end of the outer beard inlet groove (12b) has a side opening (123) and the inner end is a closed end. The inclined section (121) of the inner beard inlet groove (12a) extends obliquely from the inner side of the ring of the shaving track (11) to the middle of the shaving track (11). The inclined section (121) of the outer beard inlet groove (12b) extends obliquely from the outer side of the ring of the shaving track (11) to the middle of the shaving track (11). The inner beard inlet groove (12a) and the outer beard inlet groove (12b) are arranged alternately. In the direction of rotation of the movable blade teeth (21), relative to the rotating section (122) and The invention relates to a turning position of the inclined section (121), wherein the rotating section (122) is arranged in front of the turning position or on the same radial direction (R1) as the turning position, wherein the cutting blade (22) comprises an inner cutting edge (221) and an outer cutting edge (223) which form an angle, and an intermediate cutting edge (222) connecting the inner cutting edge (221) and the outer cutting edge (223), wherein the intermediate cutting edge (222) is located behind the inner cutting edge (221) and the outer cutting edge (223), and the rotation trajectory of the cutting blade (22) spans from the inclined section (121) of the inner whisker feed groove (12a) to the inclined section (121) of the outer whisker feed groove (12b), and completely covers the rotating sections (122) corresponding to the inner whisker feed groove (12a) and the outer whisker feed groove (12b).

3. The cutting structure of the rotary shaver according to claim 1, characterized in that: The beard inlet groove (12) on the same shaving track (11) comprises an inner beard inlet groove (12a) and an outer beard inlet groove (12b). The inner end of the inner beard inlet groove (12a) has a side opening (123) and the outer end is a closed end. The outer end of the outer beard inlet groove (12b) has a side opening (123) and the inner end is a closed end. The inclined section (121) of the inner beard inlet groove (12a) extends obliquely from the inner side of the ring of the shaving track (11) to the middle of the shaving track (11). The inclined section (121) of the outer beard inlet groove (12b) extends obliquely from the outer side of the ring of the shaving track (11) to the middle of the shaving track (11). The inner beard inlet groove (12a) is located inside the area surrounded by the plurality of outer beard inlet grooves (12b). In the direction of rotation of the rotating section (121), relative to the turning position of the rotating section (122) and the inclined section (121), the rotating section (122) is arranged in front of the turning position or in the same radial direction (R1) as the turning position, the cutting blade (22) includes an inner cutting edge (221) and an outer cutting edge (223) which form an angle, and an intermediate cutting edge (222) connecting the inner cutting edge (221) and the outer cutting edge (223), the intermediate cutting edge (222) being located behind the inner cutting edge (221) and the outer cutting edge (223), and the rotation trajectory of the cutting blade (22) spans from the inclined section (121) of the inner whisker feed groove (12a) to the inclined section (121) of the outer whisker feed groove (12b).

4. The cutting structure of the rotary shaver according to claim 1, characterized in that: A plurality of adjacent whisker feeding grooves (12) are arranged in a consistent manner and arranged in a circumferential direction; in the direction of rotation of the movable blade tooth (21), relative to a turning position between the rotating section (122) and the inclined section (121), the rotating section (122) is arranged in front of the turning position or in the same radial direction (R1) as the turning position.

5. The cutting structure of the rotary shaver according to claim 4, characterized in that: The shaving groove (12) on the same shaving track (11) has a side opening (123) at the outer end and a closed end at the inner end. The cutting edge (22) comprises an inner cutting edge (221) and an outer cutting edge (223) which are arranged at an angle, and a middle cutting edge (222) connecting the inner cutting edge (221) and the outer cutting edge (223). In the direction of rotation of the movable cutter tooth (21), the middle cutting edge (222) is located behind the inner cutting edge (221) and the outer cutting edge (223), or the inner cutting edge (221) is arranged behind the middle cutting edge (222) or arranged on the same radial direction (R2) as the middle cutting edge (222), or the outer cutting edge (223) is arranged behind the middle cutting edge (222) or arranged on the same radial direction (R2) as the middle cutting edge (222).

6. The cutting structure of the rotary shaver according to claim 4, characterized in that: The shaving groove (12) on the same shaving track (11) has side openings (123) at the outer end and the inner end respectively, and the cutting edge (22) comprises an inner cutting edge (221) and an outer cutting edge (223) which are arranged at an angle, and a middle cutting edge (222) connecting the inner cutting edge (221) and the outer cutting edge (223), wherein the middle cutting edge (222) is located behind the inner cutting edge (221) and the outer cutting edge (223), or the outer cutting edge (223) is arranged behind the middle cutting edge (222) or arranged on the same radial direction (R2) as the middle cutting edge (222).

7. The cutting structure of a rotary shaver according to claim 1, characterized in that: A plurality of adjacent whisker feeding grooves (12) are oriented in the same direction and are arranged in a circumferential direction. In the direction of rotation of the movable blade tooth (21), relative to the turning position of the rotating section (122) and the inclined section (121), the rotating section (122) is arranged behind the turning position. The cutting blade (22) comprises an inner cutting edge (221) and an outer cutting edge (223) which form an angle, and a middle cutting edge (222) connecting the inner cutting edge (221) and the outer cutting edge (223). One of the inner cutting edge (221) and the outer cutting edge (223) is arranged behind the middle cutting edge (222) or on the same radial direction (R2) as the middle cutting edge (222).

8. The cutting structure of a rotary shaver according to any one of claims 1 to 7, characterized in that: The inclined section (121) and the rotating section (122) form a V-shaped or C-shaped structure, and the cutting edge (22) is a V-shaped or C-shaped structure.

9. The cutting structure of a rotary shaver according to any one of claims 1 to 7, characterized in that: The knife net (1) is formed by powder metallurgy, the whisker inlet groove (12) is formed on the knife net (1) by injection molding, the upper end of the whisker inlet groove (12) is provided with a rounded corner r, and the lower edge of the front edge of the whisker inlet groove (12) is provided with an acute-angled blade.

10. The cutting structure of a rotary shaver according to any one of claims 1 to 7, characterized in that: The beard inlet groove (12) comprises an entrance section (124) having a side opening (123). In the direction of rotation of the movable blade tooth (21), the entrance section (124) extends obliquely outwardly and forwardly from the inside of the beard inlet groove (12), and the cutting blade (22) is located in the inner area of ​​the entrance section (124) and rotates.

11. A blade net (1) for a rotary shaver, characterized in that: The invention comprises a knife net body, a ring-shaped shaving track (11) and a beard inlet groove (12) arranged along the shaving track (11) are arranged on the top of the knife net body, and the beard inlet groove (12) is arranged along the shaving track (11), with the rotation direction of the movable knife teeth (21) as the front, the beard inlet groove (12) comprises an inclined section (121) inclined forward and a rotating section (122) rotating backward from the front end of the inclined section (121), and the beard inlet groove (12) on the same shaving track (11) comprises an inner beard inlet groove (12a) and an outer beard inlet groove (12b), the inner end of the inner beard inlet groove (12a) has a side opening (123) and the outer end is a closed end, the outer end of the outer beard inlet groove (12b) has a side opening (123) and the inner end is a closed end, and the inner beard inlet groove (12a) has a side opening (123) and the inner end is a closed end. The inclined section (121) of the groove (12a) is inclined forward from the annular inner side of the shaving track (11) toward the middle of the shaving track (11), and the inclined section (121) of the outer beard inlet groove (12b) is inclined forward from the annular outer side of the shaving track (11) toward the middle of the shaving track (11). The inner beard inlet groove (12a) and the outer beard inlet groove (12b) are arranged alternately or the inner beard inlet groove (12a) is located inside the area surrounded by a plurality of outer beard inlet grooves (12b). In the direction of rotation of the movable blade tooth (21), relative to the turning position of the rotating section (122) and the inclined section (121), the rotating section (122) is arranged in front of the turning position or arranged on the same radial direction (R1) as the turning position.

12. A knife net (1) for a rotary shaver, characterized in that: The invention comprises a knife net body, a ring-shaped shaving track (11) and a beard inlet groove (12) arranged along the shaving track (11) are arranged on the top of the knife net body, and the beard inlet groove (12) is arranged along the shaving track (11), with the rotation direction of the movable knife teeth (21) as the front, the beard inlet groove (12) comprising an inclined section (121) obliquely facing forward and a rotating section (122) rotating backward from the front end of the inclined section (121), the inclined section (121) extending from one side of the shaving track (11) to the middle of the shaving track (11), the beard inlet groove (12) further comprising an entrance section (124) located at one end or both ends of the beard inlet groove (12), the entrance section (124 having a side opening (123), and in the rotation direction of the movable knife teeth (21), the entrance section (124) obliquely faces forward from the inside of the beard inlet groove (12) outward.

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