A stationary knife screen

Abstract

The utility model relates to a static knife screen, its characterized in being equipped with the second set of holes group that a plurality of interval arrangement's diffusion force hole group constitutes on two support edges of middle part respectively, wherein, second set of holes group height H1 is less than middle part height H but is greater than first set of holes group height H2, and each diffusion force hole aperture D1 in second set of holes group is less than each entry pore aperture D2 in first set of holes group, the utility model discloses technical effect is equipped with the second set of holes group that a plurality of interval arrangement's diffusion force hole group constitutes on two support edges of middle part respectively, utilize the relative reduction of each diffusion force hole of second set of holes group the stress area of support edge, when the middle part is bent as U shape, can effectively reduce the bending strength of support edge, to guarantee the bending radian of the support edge in middle part and first set of holes group area keep consistent, improve the sharpness when the moving knife reciprocating swing cutting along static knife screen, prevent the bad phenomenon such as pulling hair or carding hair, promote the use comfort and user experience of static knife screen.

Description

Technical Field

[0001] This utility model relates to a hair trimming device, and more specifically to a static blade mesh, which is mainly used in the field of personal care tools such as razors and hair trimmers. Background Technology

[0002] The existing stationary blade mesh used in reciprocating shavers or hair removal devices includes a middle section and a supporting sidewall connected to the middle section. Several hair inlet holes are arranged at intervals on the middle section. During assembly, the middle section is bent into a U-shape and connected and fixed to the stationary blade seat by the supporting sidewall.

[0003] To achieve hair trimming, the shape of the moving blade matches the curved shape of the middle section, mostly in a semi-circular or semi-circular arch shape, which fits against the inner surface of the middle section of the stationary blade mesh. When the moving blade swings back and forth along the stationary blade under the drive of the moving blade seat, it can cut off the hair such as beard that has penetrated into the pores, thus realizing the hair trimming performance of the stationary blade mesh.

[0004] However, in actual processing of the pores, in order to ensure the working strength of the stationary blade mesh, the outermost pores in the middle section are made at a certain distance from the two ends of the stationary blade mesh (which can also be regarded as the middle section) to form a rigid support edge, thereby improving the support rigidity of the middle section.

[0005] Although reserving a rigid support edge between the outermost hair inlet hole in the middle section and the edges of both ends of the static blade mesh can improve the bending support rigidity of the middle section to some extent, the rigid support edge does not have a hair inlet hole, so its stress area is relatively large, and its bending strength is correspondingly higher than that of the area with hair inlet hole. When the middle section bends into a U-shape, the bending curvature of the rigid support edge and the hair inlet hole area is inconsistent, which leads to the fit between the moving blade and the static blade mesh, affects the cutting sharpness of the static blade mesh, and reduces the hair trimming performance of the static blade mesh. Utility Model Content

[0006] To solve the above technical problems, this utility model provides a stationary blade mesh, which not only ensures the supporting rigidity of the middle section of the stationary blade mesh, but also reduces the inconsistency of bending curvature caused by different rigidity strength, effectively improving the consistency of the bending curvature of the middle section of the stationary blade mesh, and improving the fit and cutting sharpness of the moving blade and the stationary blade mesh.

[0007] To solve the above technical problems, the present invention adopts a static knife mesh, including a substrate, which has a flexible U-shaped middle part and supporting sidewalls on both sides of the middle part. The middle part is provided with a first collection hole group consisting of several spaced-apart pores, so that supporting edges are formed at least at the edges of both ends of the middle part. On the two supporting edges of the middle part, a second collection hole group consisting of several spaced-apart force-dispersing holes is provided respectively. The height H1 of the second collection hole group is less than the height H of the middle part but greater than the height H2 of the first collection hole group, and the diameter D1 of each force-dispersing hole in the second collection hole group is less than the diameter D2 of each pore in the first collection hole group.

[0008] Preferably, the stress-dispersing hole is a blind hole or a through hole, and the diameter of the stress-dispersing hole D1 ≤ 0.2 mm.

[0009] Preferably, the stress-dissipating holes are blind holes and are located on the inner or outer surface of the substrate.

[0010] Preferably, the distance L1 between the second set of holes in the support edges at both ends of the middle part is greater than or equal to the maximum travel distance L2 of the moving knife swinging back and forth along the stationary knife mesh.

[0011] Preferably, the width of the second set of holes is less than or equal to the width of the support edge.

[0012] Preferably, the height H2 of the first collection hole group, which consists of several pores in the middle part, is less than the height H of the middle part, so that a transition edge is formed on both sides of the length direction of the middle part. On the two transition edges of the middle part, a third collection hole group consisting of several spaced-apart force-dispersing holes is provided respectively. The third collection hole group is connected with the second collection hole group to form a rectangular array surrounding the first collection hole group.

[0013] The beneficial effects of this utility model are:

[0014] 1. A second group of stress-dispersing holes is provided on each of the two supporting sides in the middle section. The stress-dispersing holes of the second group of holes reduce the stress area of ​​the supporting sides. When the middle section is bent into a U-shape, the bending strength of the supporting sides can be effectively reduced, thereby ensuring that the bending curvature of the supporting sides in the middle section is consistent with that of the first group of holes. This improves the sharpness of the moving blade when it swings back and forth along the stationary blade mesh, prevents defects such as fraying or fraying, and enhances the comfort and user experience of the stationary blade mesh.

[0015] 2. By reducing the diameter D1 of each stress-dispersing hole in the second group of holes, the bending strength and support rigidity of the support edge can be balanced. If the stress-dispersing holes are set too large, the same as the hair inlet holes, although it can ensure that the curvature of the support edge is consistent with the curvature of the first group of holes in the middle part, it also relatively reduces the support rigidity of the support edge, which can easily cause the middle part to bend and deform as soon as it contacts the skin, affecting the hair trimming performance of the static knife mesh. Therefore, by making the diameter of each stress-dispersing hole in the second group of holes smaller than the diameter of the hair inlet holes, the bending strength of the support edge at both ends of the middle part is reduced while ensuring its curvature, and the support rigidity of the support edge is also guaranteed, preventing the middle part from deforming as soon as it contacts the skin, thus improving the hair trimming performance and working stability of the static knife mesh. Attached Figure Description

[0016] Figure 1 This is a plan view of the first embodiment of a static knife wire mesh according to the present invention.

[0017] Figure 2 This is a three-dimensional structural diagram of a first embodiment of a static knife wire mesh according to the present invention.

[0018] Figure 3 This is a plan view of the second embodiment of a static knife wire mesh according to the present invention.

[0019] Figure 4 This is a three-dimensional structural diagram of a second embodiment of a static knife wire mesh according to the present invention.

[0020] Figure 5 This is a three-dimensional structural diagram of a third embodiment of a static knife wire mesh according to the present invention. Detailed Implementation

[0021] The following is in conjunction with the appendix Figures 1-5 The embodiments of this utility model are further described below:

[0022] This utility model is a static knife mesh, including a base plate, in which there is a flexible U-shaped middle part 1 and supporting sidewalls 2 placed on both sides of the middle part 1. During the assembly process, the supporting sidewalls 2 are connected to the static knife seat (not shown in the figure) so that the static knife mesh is fixed on the static knife seat. During use, the U-shaped middle part 1 is in direct contact with the skin and is used to capture hair such as beards on the skin surface.

[0023] To facilitate the capture of hairs such as beard hairs, a first collection hole group 3 consisting of several spaced-apart hair-entry holes 31 is provided in the middle part 1. The diameter D2 of each hair-entry hole 31 in the first collection hole group 3, as well as the spacing between adjacent hair-entry holes 31, can be the same or different diameters and spacings can be used. For example, taking the hair-entry hole 31 at the middle of the horizontal and vertical directions of the first collection hole group 3 as a reference, the diameter D2 of the horizontally or vertically arranged hair-entry holes 31 can gradually decrease, and the spacing between adjacent horizontally or vertically arranged hair-entry holes 31 can also gradually increase. This can relatively increase the stress-bearing area of ​​the middle part 1 and improve the bending strength of the middle part 1. However, using the same diameter D2 and spacing of the hair-entry holes 31, the hair-capturing efficiency will be relatively higher than that of gradually decreasing diameter D2 hair-entry holes 31. Therefore, in this embodiment, using several hair-entry holes 31 with the same diameter and the same spacing is the preferred implementation.

[0024] To improve the overall bending strength of the middle section 1, when the inlet holes 31 are set in the middle section 1, a certain width is reserved at the outermost inlet hole 31 of the first group of holes 3 and the edges of both ends of the middle section 1 to form a support edge 11. During the production process, the middle area of ​​the middle section 1 is affected by the densely arranged inlet holes 31, which causes the stress area of ​​the middle section 1 to be greatly reduced, thus reducing the bending strength of the middle section 1. However, by reserving a certain width of support edge 11 at both ends of the middle section 1, it is possible to prevent the middle section 1 from bending and deforming as soon as it comes into contact with the skin during use, thus ensuring the working stability of the static knife mesh.

[0025] Although the support edge 11 can improve the overall bending strength of the middle part 1 to a certain extent, it also leads to the inconsistency in bending strength between the support edge 11 and the area where the hair inlet 31 is set in the middle part 1. When the middle part 1 in the stationary blade mesh is bent into a U-shape, there is a difference in the curvature between the support edge 11 and the area of ​​the first collection hole group 3. When the moving blade swings back and forth along the stationary blade mesh, it is affected by factors such as inconsistent curvature, which can easily cause problems such as pulling or tangling when trimming hairs such as beards, thus reducing the sharpness of the stationary blade mesh.

[0026] Based on this, such as Figure 1 and Figure 2 As shown, a second group of holes 5 is provided on the two supporting edges 11 of the middle part 1, consisting of a number of spaced stress-dispersing holes 51. The stress-dispersing holes 51 of the second group of holes 5 reduce the stress area of ​​the supporting edges 11. When the middle part 1 is bent into a U-shape, the bending strength of the supporting edges 11 can be effectively reduced, thereby ensuring that the bending arc of the supporting edges 11 in the middle part 1 is consistent with that of the area of ​​the first group of holes 3. This improves the sharpness of the moving blade when it swings back and forth along the stationary blade mesh, prevents defects such as fraying or fraying, and enhances the comfort and user experience of the stationary blade mesh.

[0027] To ensure that the bending strength of the inner support edge 11 of the middle section 1 is consistent with that of the first hole group 3 area, and to avoid affecting the cutting sharpness of the moving blade when it swings back and forth along the stationary blade mesh due to excessive bending strength of the support edge 11, the height H1 of the second hole group 5 is less than the height H of the middle section 1 but greater than the height H2 of the first hole group 3. Since the height H1 of the second hole group 5 is set greater than the height H2 of the first hole group 3, when the middle section 1 is bent into a U-shape, the second hole group 5 can reduce the bending strength of the area on the support edge 11 that exceeds the H1 of the first hole group 3, ensuring that the curvature of the area of ​​the support edge 11 connected to the first hole group 3 is consistent with the curvature of the area of ​​the first hole group 3 area. This effectively avoids the sharpness of the moving blade when it swings back and forth along the stationary blade mesh, and improves the trimming performance and user comfort of the stationary blade mesh.

[0028] The purpose of setting the stress-dispersing holes 51 is to reduce the bending strength of the support edges 11 at both ends of the middle part 1, so that the curvature of the support edges 11 is consistent with the curvature of the first collection hole group 3 area. It is clear that the stress-dispersing holes 51 are not used for capturing hair such as beard hair. Therefore, the diameter D1 of each stress-dispersing hole 51 in the second collection hole group 5 is smaller than the diameter D2 of each hair-entry hole 31 in the first collection hole group 3. By reducing the diameter D1 of each stress-dispersing hole 51 in the second collection hole group 5, the bending strength and support rigidity of the support edges 11 can be balanced. If the stress-dispersing holes 51 are set too large or have the same diameter as the hair-entry holes 31, although it can ensure that the curvature of the support edges 11 is consistent with the curvature of the first collection hole group 3 area of ​​the middle part 1, it will not be effective. However, this also relatively reduces the support rigidity of the support, which can easily cause the middle part 1 to bend and deform as soon as it comes into contact with the skin, affecting the hair trimming performance of the static knife mesh. Therefore, the diameter D1 of each force-dispersing hole 51 in the second group of holes 5 is smaller than the diameter D2 of the hair inlet hole 31. This reduces the bending strength of the support edges 11 at both ends of the middle part 1 while ensuring its bending curvature, and also ensures the support rigidity of the support edges 11, preventing the middle part 1 from deforming as soon as it comes into contact with the skin, thus improving the hair trimming performance and working stability of the static knife mesh.

[0029] like Figure 4 or Figure 5As shown, in actual production, the stress-dispersing hole 51 is either a blind hole or a through hole, and the hole diameter D1 of the stress-dispersing hole 51 is ≤ 0.2mm. Whether the stress-dispersing hole 51 on the support edge 11 is a blind hole or a through hole, it can reduce the bending strength of the support edge 11. In specific implementation, it can be determined according to the user's needs, and this embodiment does not make further limitations. To balance the bending performance and support rigidity of the support edge 11, when the diameter D1 of the stress-dispersing hole 51 is set to be less than or equal to 0.2mm (or 0.15mm or 0.10mm, etc.), the spacing between adjacent stress-dispersing holes 51 can be relatively increased, making the spacing greater than the spacing between adjacent hair-feathering holes 31. This reduces the bending resistance, making it easier for the bending arc of the support edge 11 to be consistent with the bending arc of the first collection hole group 3 area. At the same time, because the spacing between adjacent stress-dispersing holes 51 is relatively large, the support edge 11 can maintain a certain support rigidity after bending into a U-shape, preventing the static knife mesh from bending and deforming as soon as it comes into contact with the skin, and ensuring the hair-trimming performance and working stability of the static knife mesh.

[0030] like Figure 5 As shown, to enhance the overall aesthetics of the shaving foil, the force-dispersing holes 51 are blind holes and are located on the inner or outer surface of the substrate. When the force-dispersing holes 51 are located on the inner surface of the substrate, the hidden force-dispersing hole structure cannot be visually observed from the outside after the shaving foil is assembled, thus improving the overall aesthetics of the shaving foil. Of course, the blind-hole-shaped force-dispersing holes 51 can also be located on the outer surface of the substrate. In this case, some self-lubricating materials (such as solid shaving cream) can be added into the blind holes during use to improve the smoothness of the shaving foil when sliding along the skin surface and enhance the user experience. In specific implementations, customization can be made according to user needs, and no further limitations are made in this embodiment.

[0031] To prevent hair from getting stuck or pulled due to inconsistent curvature of the support edges 11 when the moving blade reciprocates along the stationary blade mesh, the distance L1 between the second group of holes 5 in the support edges 11 at both ends of the middle section 1 is greater than or equal to the maximum travel distance of the moving blade reciprocating along the stationary blade mesh. Because the second group of holes 5, consisting of several force-dispersing holes 51, is added to the support edges 11 at both ends of the middle section 1, when the curvature is U-shaped, the curvature of the support edges 11 with the force-dispersing holes 51 can be consistent with the curvature of the area of ​​the first group of holes 3 in the middle section 1. Thus, when the moving blade reciprocates along the stationary blade mesh, it can slide towards the support edges 11 at both ends of the middle section 1, ensuring that the hair in the outermost hair inlet 31 of the first group of holes 3 can be trimmed by the moving blade.

[0032] Secondly, by setting the distance L1 between the second collection hole groups 5 on the support edges 11 at both ends of the middle part 1 to be greater than the reciprocating swing stroke of the moving blade, it is possible to avoid hair jamming or pulling caused by the inconsistent curvature of the support edges 11 in the middle part 1 and the area of ​​the first collection hole group 3, thereby improving the hair trimming performance and user comfort of the static blade mesh.

[0033] In actual production, spaced-apart stress-dispersing holes 51 can be provided on the entire surface of the support edge 11, as long as the diameter D1 of the stress-dispersing holes 51 is smaller than the diameter D2 of the inlet holes 31. Of course, a certain width can also be reserved on the support edge 11 without stress-dispersing holes 51, so that the width of the second collection hole group 5 is smaller than the width of the support edge 11, as long as the distance L1 between the second collection hole groups 5 on the support edges 11 at both ends of the middle part 1 is greater than the reciprocating swing stroke of the moving knife along the stationary knife mesh. In specific implementation, it can be determined according to the user's needs, and this embodiment does not impose further restrictions.

[0034] Because the static blade mesh is assembled in a U-shape, in most cases during use, only the curved apex of the middle part 1 contacts the skin to capture hair such as beards. To improve the support rigidity of the static blade mesh perpendicular to the swing direction, such as... Figure 3 and Figure 4 As shown, the height H2 of the first collection hole group 3, which consists of several inlet holes 31 in the middle part 1, is less than the height H of the middle part 1, so that transition edges 12 are formed on both sides of the length direction of the middle part 1. The formation of transition edges 12 in the length direction of the middle part 1 reduces the hollow area occupied by the inlet holes 31 when the static knife mesh is installed on the static knife seat (not shown in the figure), thereby increasing the force-bearing area of ​​the static knife mesh and improving the support rigidity of the static knife mesh perpendicular to the swing direction during assembly, thus reducing the bending deformation of the static knife mesh when it contacts the skin.

[0035] Secondly, for heat dissipation or lubrication purposes, a third group of holes 6, consisting of several spaced-apart stress-dissipating holes 51, is provided on the two transition edges 12 of the middle part 1. The third group of holes 6 is connected to the second group of holes 5 to form a rectangular array surrounding the first group of holes 3. In specific implementation, if each stress-dissipating hole 51 in the second group of holes 5 and the third group of holes 6 is a through hole, during use, each stress-dissipating hole 51 in the second group of holes 5 and the third group of holes 6 can facilitate airflow, thereby quickly dissipating the heat generated by friction between the moving and stationary blades, reducing the surface temperature rise of the moving and stationary blade mesh, and improving the user comfort of the stationary blade mesh.

[0036] If the force-dispersing holes 51 in the second group of holes 5 and the third group of holes 6 are blind holes and are located on the outer surface of the substrate, a self-lubricating solid material (such as solid shaving cream) can be filled into each force-dispersing hole 51 during use. When the static foil slides along the skin, it can improve the smoothness of the shaving or hair-shaving process, thereby improving user comfort and user experience. Of course, the force-dispersing holes 51 in the second group of holes 5 and the third group of holes 6 can also be blind holes and located on the inner surface of the substrate, thus forming a hidden force-dispersing hole 51 structure, which improves the overall aesthetics of the static foil.

[0037] The above embodiments should not be regarded as limitations on the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A static knife mesh, comprising a substrate having a flexible U-shaped central portion (1) and supporting sidewalls (2) disposed on both sides of the central portion (1), wherein the central portion (1) is provided with a first collection group (3) consisting of a plurality of spaced-apart pores (31), such that supporting edges (11) are formed at least at the edges of both ends of the central portion (1); characterized in that On the two supporting sides (11) of the middle part (1), there are a second group of holes (5) consisting of a number of spaced-apart holes (51). The height H1 of the second group of holes (5) is less than the height H of the middle part (1) but greater than the height H2 of the first group of holes (3). The diameter D1 of each spaced-apart hole (51) in the second group of holes (5) is less than the diameter D2 of each inlet hole (31) in the first group of holes (3).

2. The static knife wire sheet according to claim 1, characterized in that... The stress-dissipating hole (51) is a blind hole or a through hole, and the diameter of the stress-dissipating hole (51) is D1≤0.2mm.

3. A static knife wire mesh according to claim 1, characterized in that... The stress-dissipating hole (51) is a blind hole and is located on the inner or outer surface of the substrate.

4. A static knife wire mesh according to claim 1, characterized in that... The distance L1 between the second set of holes (5) in the two end support edges (11) of the middle part (1) is greater than or equal to the maximum travel distance of the moving knife swinging back and forth along the stationary knife mesh.

5. A static knife wire mesh according to claim 1, characterized in that... The width of the second set of holes (5) is less than or equal to the width of the support edge (11).

6. A static knife wire mesh according to claim 1, characterized in that... The height H2 of the first collection hole group (3) composed of several entry holes (31) in the middle part (1) is less than the height H of the middle part (1), so that transition edges (12) are formed on both sides of the height direction of the middle part (1). On the two transition edges (12) of the middle part (1), a third collection hole group (6) composed of several spaced force dispersing holes (51) is provided respectively. The third collection hole group (6) is connected with the second collection hole group (5) to form a rectangular array surrounding the first collection hole group (3).

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