Static blade net with reinforcing structure and cutting head assembly and trimming tool

Abstract

The present application relates to a static blade net and a cutter head assembly with reinforced structure and a trimming tool, characterized in that the thickness T1 of the net surface and the supporting ring is less than or equal to 0.3mm respectively, an annular edge extending outwardly is arranged at the lower end of the supporting ring, a plurality of first arc-shaped pieces are arranged on the annular edge, the first arc-shaped pieces are arranged in intervals and are convex and / or concave along the outer end surface of the annular edge, and the curved arc-shaped section of the first arc-shaped piece close to the supporting ring is convex and / or concave along the bottom end surface of the supporting ring and is integrated with the supporting ring. The beneficial effects of the present application are that the first arc-shaped pieces are arranged on the annular edge, each first arc-shaped piece is formed by compression deformation under the external pressure of the annular edge, the molecular structure at the local compression position of the annular edge is more compact, the stress area of the annular edge is increased, the bending strength of the annular edge is improved, the thickness of the material is reduced, the production cost is reduced, and the overall strength of the static blade net is ensured.

Description

Technical Field

[0001] This invention relates to a static foil for capturing hair, and more specifically to a static foil with a reinforced structure, a blade assembly, and a trimming tool, primarily used in razors and belonging to the main components of razors. Background Technology

[0002] Rotary shavers trim beards primarily by using a stationary foil and a moving blade that rotates along the inner wall of the foil. The upper surface of the stationary foil has several beard grooves for capturing beard hairs. The beard hairs enter the stationary foil through these grooves, and the moving blades cut off the hairs captured by the grooves as they rotate along the inner wall of the foil, thus trimming the beard.

[0003] A shaving foil includes a mesh surface with several beard grooves, an annular support wall supporting the mesh surface, and a bent edge for limiting and connecting the annular support wall to the shaving foil holder. To ensure the working strength of the shaving foil, most shaving foils on the market are made of materials thicker than 0.5mm. While increasing the material thickness improves the working strength and stability of the shaving foil, it also increases production costs and reduces the shaving effect. During shaving, the length of the beard root exposed above the skin is directly affected by the thickness of the mesh surface; the thicker the mesh material, the longer the remaining beard root. Conversely, reducing the thickness of the shaving foil material reduces its bending strength, making it unsuitable for use. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a static blade mesh with a reinforced structure, a blade assembly, and a trimming tool. This static blade mesh can not only reduce material thickness, ensure the working strength of the static blade mesh, and reduce the material cost of the static blade mesh, but also facilitate production and processing, and improve the production efficiency of the static blade mesh.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is a static knife mesh with a reinforced structure, including a mesh surface with several burr grooves and a support ring. The mesh surface is fixed to the upper end of the support ring and is connected to the support ring as a whole. The thickness T1 of the mesh surface and the support ring is less than or equal to 0.3mm. An outwardly bent and extended annular edge is provided at the lower end of the support ring. Multiple first arc-shaped pieces are provided on the annular edge at intervals and arranged radially or concentrically along the outer end face of the annular edge, forming a protrusion and / or a depression. The curved arc section of the first arc-shaped piece near the support ring protrudes and / or is recessed along the bottom end face of the support ring to form an integral part, so that the bottom end face of the support ring forms an arc-shaped groove.

[0006] Preferably, a plurality of first arc-shaped pieces are evenly distributed in a ring on the edge of the ring, and each piece is raised in a radial direction along the upper end face of the ring edge. The curved arc segment of each first arc-shaped piece is connected to the bottom end face of the support ring as a whole, so that the bottom end face of the support plate forms an arc-shaped groove.

[0007] Preferably, with the bottom end face of the annular edge as the reference, the distance T2 between the highest point of the curved arc segment of each first arc-shaped piece and the bottom end face of the annular edge is 0.5mm ± 0.1mm.

[0008] Preferably, the support ring is provided with a plurality of second arc-shaped pieces that are raised and / or recessed along the support ring. The length T3 of the second arc-shaped pieces is higher than one-fifth of the total height of the support ring and lower than the inlet groove provided on the support ring.

[0009] Preferably, the number of second arc-shaped pieces is equal to the number of first arc-shaped pieces and the bending direction of the first arc-shaped pieces is the same. They are formed on the support ring perpendicular to the annular edge, so that one end of each second arc-shaped piece is connected to one end of the corresponding first arc-shaped piece to form a whole.

[0010] Preferably, with the outer surface of the support ring as a reference, the distance T4 between the highest point of the curved arc segment of the second arc-shaped piece and the outer surface of the support ring is 0.5mm ± 0.1mm.

[0011] Preferably, at least two limiting grooves are provided on the annular edge, and the two limiting grooves are arranged opposite to each other.

[0012] Preferably, each of the two side walls of the limiting groove is provided with a downwardly extending limiting block.

[0013] A cutter head assembly includes the aforementioned stationary blade mesh.

[0014] A trimming tool including the aforementioned blade assembly.

[0015] The beneficial effect of this invention is that by adding first arc-shaped pieces with protrusions and / or depressions to the annular edge, each first arc-shaped piece undergoes compression deformation under external pressure on the annular edge. This not only makes the molecular structure at the locally compressed locations on the annular edge more compact but also increases the stress-bearing area of ​​the annular edge, thereby improving the bending strength of the annular edge and significantly enhancing the overall rigidity. Furthermore, by integrating the curved arc segments of each first arc-shaped piece into a single unit along the bottom end face of the support ring with protrusions and / or depressions, the strength at the connection between the support ring and the annular edge is increased, preventing the support ring from twisting and deforming. This achieves the goal of reducing material thickness and production costs while maintaining the overall strength of the static knife mesh. Attached Figure Description

[0016] Figure 1 This is a front view of the static knife mesh with a reinforced structure according to an embodiment of the present invention.

[0017] Figure 2 Figure 1 is a perspective view of a static blade net according to an embodiment of the present application Figure 1 Figure 2 is a sectional view of the static blade net of Figure 1

[0018] Figure 3 Figure 3 is a perspective view of a static blade net according to another embodiment of the present application Figure 2 Figure 4 is an enlarged view of the portion P of the static blade net of Figure 3

[0019] Figure 4 Figure 5 is a perspective view of a static blade net according to a third embodiment of the present application Figure 6 is a sectional view of the static blade net of Figure 5

[0020] Figure 7 is a perspective view of a static blade net according to a fourth embodiment of the present application Figure 5 Figure 8 is a sectional view of the static blade net of Figure 7 Figure 9 is a perspective view of a static blade net according to a fifth embodiment of the present application

[0021] Figure 10 is a sectional view of the static blade net of Figure 9 Figure 6 Figure 11 is a perspective view of a static blade net according to a sixth embodiment of the present application DETAILED DESCRIPTION

[0022] The above and other aspects of the present application will become more apparent by describing in detail the embodiments thereof with reference to the attached drawings in which: Figures 1-6 Further description will be given of the embodiments of the present application as follows:

[0023] Since the material thickness of the existing static blade net is greater than 0.5mm, although the bending strength of the static blade net can be ensured, the thickness of the net surface 1 is also relatively increased, resulting in a relatively long length of the hair root remaining on the skin surface, which not only reduces the hair trimming effect of the static blade net, but also relatively increases the production cost of the static blade net.

[0024] Therefore, this invention provides a solution for a static hair trimming mesh with a reinforced structure, comprising a mesh surface 1 with a plurality of hair-feeding grooves 11 and a support ring 2. The mesh surface 1 is fixed to the upper end of the support ring 2 and is integrally connected to the support ring 2. To improve the hair trimming effect, the thickness T1 of the mesh surface 1 and the support ring 2 is less than or equal to 0.3 mm, preferably between 0.25 and 0.30 mm. In actual production, the hair-feeding grooves 11 in the mesh surface 1 can also be ground separately to further reduce the local thickness of the mesh surface 1 and improve the hair trimming effect of the static hair trimming mesh. To facilitate the assembly and fixing of the static hair trimming mesh, an outwardly bent annular edge 3 is provided at the lower end of the support ring 2, and the annular edge 3 is perpendicular to the support ring 2. Since the material thickness of the static hair trimming mesh is reduced, the bending strength of the annular edge 3 and the support ring 2 will also be reduced accordingly. To prevent the static blade mesh from twisting and deforming during operation, thus affecting its hair trimming performance, multiple spaced first arc-shaped pieces 4 are provided on the annular edge 3, protruding and / or recessed along the outer end face of the annular edge 3. The curved section of the first arc-shaped piece 4 near the support ring 2 protrudes and / or recesses along the bottom end face of the support ring 2, forming an integral part with the support ring 2. During assembly, the static blade mesh is secured by the cooperation between the annular edge 3 and the static blade holder (not shown in the figure). By adding the protruding and / or recessed first arc-shaped pieces 4 to the annular edge 3, each piece undergoes compression deformation under external pressure. This not only makes the molecular structure at the locally compressed locations of the annular edge 3 more compact but also increases the stress-bearing area of ​​the annular edge 3, thereby improving its bending strength and significantly enhancing its overall rigidity. The curved arc segments of each first arc-shaped piece 4 are formed into a single unit by protruding and / or recessing along the bottom surface of the support ring 2. This increases the strength of the connection between the support ring 2 and the annular edge 3, and prevents the bottom of the support ring 2 from twisting and deforming under stress. This achieves the goal of reducing material thickness and production costs while ensuring the overall strength of the static knife mesh.

[0025] To ensure the overall bending strength of the annular edge 3 is balanced, multiple first arc-shaped pieces 4 are evenly distributed in a ring on the annular edge 3. The number of first arc-shaped pieces 4 is based on the center of the mesh surface 1, and they are evenly distributed on the annular edge 3 at 30° intervals. Of course, if the perimeter of the annular edge 3 is long, the interval angle can be reduced accordingly to increase the number of first arc-shaped pieces 4. The specific number can be set according to actual needs.

[0026] In order to ensure the overall bending strength of the annular edge 3 and the support ring 2 and facilitate production and processing, each first arc-shaped piece 4 is protruded along the radial direction of the upper end surface of the annular edge 3, and the curved arc-shaped section of each first arc-shaped piece 4 is integrally connected with the bottom end surface of the support ring 2, so that the bottom end surface of the support plate forms an arc-shaped groove 21. The first arc-shaped piece 4 is arranged along the radial direction of the annular edge 3, so that the end of the first arc-shaped piece 4 is connected with the support ring 2, the bending strength of the joint between the support ring 2 and the annular edge 3 is ensured, and when the bottom end surface of the annular edge 3 is punched during production and processing, a plurality of first arc-shaped pieces 4 protruding along the upper end surface of the annular edge 3 are formed on the annular edge 3, and an arc-shaped groove 21 is formed at the corresponding position of the bottom end surface of the support ring 2, so that the support ring 2 and the annular edge 3 are integrally formed while ensuring the overall rigidity of the support ring 2 and the annular edge 3, and the production efficiency is improved. Of course, the first arc-shaped piece 4 can also be arranged concentrically with the annular edge 3, but in this structure, the first arc-shaped piece 4 can only improve the bending strength of the annular edge 3 and cannot connect the annular edge 3 and the support ring 2, resulting in insufficient strength of the joint between the support ring 2 and the annular edge 3, so the embodiment is a preferred embodiment.

[0027] Since the material thickness of the mesh surface 1 and the support ring 2 is less than 0.3 mm, the thickness is relatively thin, in order to improve the overall rigidity of the annular edge 3, the distance T2 between the highest point of the curved arc-shaped section of each first arc-shaped piece 4 and the bottom end surface of the annular edge 3 is less than 1 mm, preferably 0.5 mm ± 0.1 mm, that is, protruding about 0.2 mm along the upper end surface of the annular edge 3, at this time, the overall bending strength of the annular edge 3 is optimal.

[0028] Since the thickness of the support ring 2 is reduced to less than 0.3 mm, the bending strength of the support ring 2 is also relatively weakened, in order to prevent the support ring 2 from being twisted and deformed, a plurality of second arc-shaped pieces 5 protruding and / or recessed along the support ring 2 are arranged on the support ring 2, the length T3 of the second arc-shaped piece 5 is higher than one fifth of the total height of the support ring 2, and lower than the hair inlet groove 11 arranged on the support ring 2. Each second arc-shaped piece 5 is a compression deformation formed under the external pressure of the support ring 2, which not only makes the molecular structure of the support ring 2 at the local pressure position more compact, but also increases the stress area of the support ring 2, thereby improving the bending strength of the support ring 2 and significantly improving the overall rigidity, effectively preventing the support ring 2 from being twisted and deformed, and improving the working stability of the static knife net. In order to consider the overall appearance and bending strength of the static knife net, the length T3 of each second arc-shaped piece 5 is greater than one fifth of the overall height of the support ring 2, but the top end of the second arc-shaped piece 5 must be below the hair inlet groove 11 arranged on the support ring 2, so that the strength of the support ring 2 can be ensured while avoiding the influence of the second arc-shaped piece 5 on the hair inlet and hair trimming ability of the side surface of the static knife net.

[0029] The second arc-shaped piece 5 is formed on the support ring 2 under the extrusion of external force, whether it is protruded towards the outside of the support ring 2 or recessed along the inside of the support ring 2, and can play the purpose of improving the bending strength. But in order to improve the overall bending strength of the support ring 2 and the annular edge 3, the first arc-shaped piece 4 and the second arc-shaped piece 5 are formed in one body, the number of the second arc-shaped piece 5 is equal to the number of the first arc-shaped piece 4 and the bending direction of the second arc-shaped piece 5 is the same as that of the first arc-shaped piece 4, and the second arc-shaped piece 5 is formed on the support ring 2 perpendicularly to the annular edge 3, so that one end of each second arc-shaped piece 5 is connected to one end of the corresponding first arc-shaped piece 4 in one body. The second arc-shaped piece 5 is protruded along the outer surface of the support ring 2 and consistent with the first arc-shaped piece 4, which can be integrally stamped and formed in the production and processing, and then the bending operation of the annular edge 3 is carried out, so as to facilitate the production and processing of the static knife net, improve the production efficiency, and also ensure that the first arc-shaped piece 4 and the second arc-shaped piece 5 form an integral whole, maximize the overall rigidity of the support ring 2 and the annular edge 3, avoid the distortion of the support ring 2 and the annular edge 3 under stress, and improve the working stability of the static knife net. Of course, the second arc-shaped piece 5 can also be recessed along the outer surface of the support ring 2, but the recessed second arc-shaped piece 5 cannot be connected to the first arc-shaped piece 4 in one body, and can only make the support ring 2 and the annular edge 3 form individual bodies, and the bending strength at the connection is weaker than that of the first arc-shaped piece 4 and the second arc-shaped piece 5 in one body, so the embodiment of the present embodiment is the preferred embodiment. Secondly, the second arc-shaped piece 5 is arranged perpendicularly to the annular edge 3, mainly considering the integrally stamping and forming of the second arc-shaped piece 5 and the first arc-shaped piece 4. Of course, if the stamping die is a two-segment non-straight line, the second arc-shaped piece 5 can also be inclined relative to the annular edge 3, which can be determined according to the stamping die, as long as the first arc-shaped piece 4 and the second arc-shaped piece 5 can be integrally stamped and formed.

[0030] Since the material thickness of the net surface 1 and the support ring 2 is less than 0.3 mm, the thickness is relatively thin, in order to improve the overall rigidity of the support ring 2, the distance T4 between the highest point of the bending arc-shaped section of the second arc-shaped piece 5 and the outer surface of the support ring 2 is less than 1 mm, preferably 0.5 mm ± 0.1 mm, that is, the second arc-shaped piece 5 is protruded about 0.2 mm along the outer surface of the support ring 2, at this time, the overall bending strength of the support ring 2 is the best.

[0031] For the limited cooperation of the annular edge 3 and the static blade seat, at least two limiting grooves 6 are arranged on the annular edge 3, and the two limiting grooves 6 are oppositely arranged. When the static blade net is assembled, the two limiting grooves 6 are clamped with the limiting boss arranged on the static blade seat, so as to avoid the static blade net rotating with the moving blade during the hair trimming, and ensure the hair trimming performance. In order to reduce the friction between the static blade net and the static blade, the limiting blocks 7 extending downward are arranged on the two side walls of each limiting groove 6. The limiting blocks 7 arranged at the limiting groove 6 are inserted into the limiting hole (not shown in the figure) in the static blade seat, so as to ensure the installation firmness of the static blade net and the static blade seat, and avoid the noise generated by the friction between the static blade net and the static blade seat or the plastic wear of the static blade seat made of plastic. The limiting blocks can be arranged simultaneously with the first arc-shaped piece 4 and the second arc-shaped piece 5, or can be arranged separately with the first arc-shaped piece 4, such as Figure 5 The second embodiment and Figure 6 The third embodiment are shown, and the specific customization can be determined according to the requirements.

[0032] A cutter head assembly comprising the static blade net.

[0033] A trimming tool comprising the cutter head assembly.

[0034] The above embodiments should not be regarded as the limitation of the present application, but any improvement based on the spirit of the present application should be within the protection scope of the present application.

Claims

1. A stationary knife net with reinforced structure, comprising a net surface (1) provided with a plurality of barb grooves (11) and a supporting ring (2), the net surface (1) being fixed to the upper end of the supporting ring (2) and being connected with the supporting ring (2) as a whole; characterized in that The thickness T1 of the net surface (1) and the supporting ring (2) is less than or equal to 0.3 mm, and the annular edge (3) extending outwardly is arranged at the lower end of the supporting ring (2), and the first arc-shaped pieces (4) are arranged on the annular edge (3) in a manner of being spaced apart and arranged in a radial direction or concentrically, and the first arc-shaped pieces (4) are arranged in a manner of being protruding and / or recessed, and the curved arc-shaped section of the first arc-shaped piece (4) close to the supporting ring (2) is protruding and / or recessed along the bottom end surface of the supporting ring (2) and is integrated with the supporting ring (2), so that the bottom end surface of the supporting ring (2) forms an arc-shaped groove (21).

2. The stationary knife net with reinforcing structure according to claim 1, characterized in that The first arc-shaped pieces (4) are arranged on the annular edge (3) in a manner of being spaced apart and arranged in a radial direction of the upper end surface of the annular edge (3) in a manner of being protruding, and the curved arc-shaped section of each first arc-shaped piece (4) is integrated with the bottom end surface of the supporting ring (2).

3. The stationary knife net with reinforcing structure according to claim 1, characterized in that The distance T2 between the highest point of the curved arc-shaped section of each first arc-shaped piece (4) and the bottom end surface of the annular edge (3) is 0.5 mm±0.1 mm.

4. The stationary knife net with reinforcing structure according to claim 1, characterized in that The second arc-shaped pieces (5) are arranged on the supporting ring (2) in a manner of being protruding and / or recessed, the length T3 of the second arc-shaped pieces (5) is higher than one fifth of the total height of the supporting ring (2), and is lower than the advancing slot (11) arranged on the supporting ring (2).

5. The stationary knife net with reinforcing structure according to claim 4, characterized in that The number of the second arc-shaped pieces (5) is equal to the number of the first arc-shaped pieces (4), and the bending direction of the second arc-shaped pieces (5) is the same as that of the first arc-shaped pieces (4), and the second arc-shaped pieces (5) are arranged on the supporting ring (2) in a perpendicular manner to the annular edge (3), so that one end of each second arc-shaped piece (5) is integrated with one end of the corresponding first arc-shaped piece (4).

6. The stationary knife net with reinforcing structure according to claim 4, characterized in that The distance T4 between the highest point of the curved arc-shaped section of the second arc-shaped piece (5) and the outer surface of the supporting ring (2) is 0.5 mm±0.1 mm.

7. The stationary knife net with reinforcing structure according to claim 1, characterized in that At least two limiting grooves (6) are arranged on the annular edge (3), and the two limiting grooves (6) are arranged in a manner of being oppositely arranged.

8. The stationary knife net with reinforcing structure according to claim 7, characterized in that The limiting blocks (7) extending downwardly are arranged on the two side walls of each limiting groove (6).

9. A tool bit assembly characterized by The stationary knife net comprises the stationary knife net according to any one of claims 1-8.

10. A trimming tool characterized in that The knife head assembly comprises the knife head assembly according to claim 9.

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