Cartridge and shaver

Abstract

The application provides a head assembly and a shaver. The head assembly comprises a shaver head. The shaver head comprises a top cover and a side wall connected to each other. The side wall is arranged around the top cover. The top cover is provided with a hair inlet portion. The hair inlet portion comprises a plurality of hair inlet holes arranged at intervals in the circumferential direction of the top cover. Each of the hair inlet holes penetrates the top cover in the axial direction of the top cover. The hair inlet hole has a first edge and a second edge arranged oppositely in the circumferential direction of the top cover. The first edge and the second edge each comprise an arc-shaped section. The arc-shaped section extends in an arc shape and protrudes in a first direction in the circumferential direction of the top cover. Through the arrangement, the ability of the head assembly to gather and capture hairs is improved, and the shaving efficiency and the closeness of the shaver are improved.

Description

Technical Field

[0001] This application relates to the field of razor technology, and in particular to a razor head assembly and a razor. Background Technology

[0002] Razors are an essential tool for grooming hair in daily life. Razors are divided into manual and automatic types. In electric razors, the combination of a foil and moving blades is usually used to cut the hair.

[0003] Currently, the hair inlet holes in most shavers are rectangular strips. During shaving, the hair is easily pushed outside the hair inlet holes and is difficult to gather, resulting in poor hair catching ability of the shaver, reduced shaving efficiency, and affecting the shaver's cleanliness and user experience. Utility Model Content

[0004] In view of this, this application provides a blade head assembly and a razor that can improve hair-catching ability and shaving efficiency.

[0005] Specifically, the following technical solutions are included:

[0006] In a first aspect, this application provides a razor head assembly, the razor head assembly including a razor foil, the razor foil including a connected top cover and a side wall, the side wall surrounding the top cover, the top cover having a hair inlet portion, the hair inlet portion including a plurality of hair inlet holes spaced apart circumferentially along the top cover, each hair inlet hole penetrating the top cover axially, the hair inlet hole having a first edge and a second edge disposed opposite to each other circumferentially along the top cover, the first edge and the second edge both including an arcuate segment, the arcuate segment extending in an arc and protruding in a first direction circumferentially along the top cover.

[0007] In the technical solution of this application, multiple hair inlet holes are provided at circumferential intervals along the top cover, allowing hair to enter the hair inlet holes for easy hair cutting. Since the first and second edges of the hair inlet holes both have arc-shaped segments extending in an arc shape, the hair entering the hair inlet holes can be gathered under the guidance of the arc segments, thereby improving the hair gathering and capturing ability of the razor head assembly, which is conducive to improving the shaving efficiency and cleanliness of the razor and enhancing the user experience. At the same time, the smooth shape of the hair inlet holes makes the hair more evenly stressed, reducing the pulling force on the hair, which is conducive to reducing skin irritation and improving shaving comfort.

[0008] In one possible implementation, there are multiple feed vents, which are arranged concentrically along the radial direction of the top cover.

[0009] In the technical solution of this application, by setting multiple hair inlets, a multi-level hair-catching channel is formed, which increases the shaving area, which is conducive to improving shaving efficiency and cleanliness, and reducing shaving time.

[0010] In one possible implementation, the beard insertion portion includes a plurality of beard insertion ribs spaced circumferentially along the top cover, the gap between any two adjacent beard insertion ribs forming the beard insertion hole, and the central region of the beard insertion ribs bulges along the axial direction of the top cover relative to at least one end of the beard insertion ribs.

[0011] In the technical solution of this application, the hair entry bone position is roughly wavy, which helps to guide the hair located on the side of the hair entry part into the hair entry hole, improve the hair gathering effect, and at the same time improve shaving comfort and shaving skin feel.

[0012] In one possible implementation, the top cover further includes a partition, which is annular and located between two adjacent beard-feathering portions, wherein the beard-feathering bone positions of the two adjacent beard-feathering portions are connected to the partition.

[0013] The stubble inlet includes a cut section and a first stubble inlet section that are in communication with each other. The first stubble inlet section is located at one end near the partition and extends at least partially along the axial direction of the top cover.

[0014] In the technical solution of this application, by setting the first hair inlet section to be located at one end near the partition and extending at least partially along the axial direction of the top cover, the hair catching range of the hair inlet hole is expanded, which is beneficial to guiding the hair located in the partition section to enter the hair inlet hole from the first hair inlet section, so as to be cut in the cutting section, thereby improving the hair inlet efficiency of the blade assembly and improving the shaving efficiency of the razor.

[0015] In one possible implementation, the styling hole located on the outermost styling portion further includes a second styling section communicating with the cutting section. The second styling section is located at one end of the cutting section opposite to the first styling section and extends at least partially along the axial direction of the top cover.

[0016] In the technical solution of this application, by setting a second hair inlet section, the hair-catching range of the hair inlet hole is further expanded, which is beneficial to guiding the hair located on the outer edge of the shaver foil from the second hair inlet section into the hair inlet hole, so as to be cut in the cutting section, thereby further improving the hair-catching efficiency of the shaver head assembly and the shaving efficiency of the shaver.

[0017] In one possible implementation, the top cover further includes a central base, with a plurality of the tassels arranged around the central base, the central base being recessed relative to the top surface of the tassels.

[0018] In the technical solution of this application, the concave central base forms a space for temporarily storing hair, which can prevent the cut hair from clogging the hair inlet and affecting shaving efficiency. At the same time, when the central base is in contact with the skin, the hair can enter the shaving foil's internal space more deeply from the hair inlet, thus being cut more thoroughly and improving the cleanliness of the hair shave.

[0019] In one possible implementation, the razor head assembly further includes a razor blade, the razor blade including a connected support and a cutting part, the cutting part being adapted to the position of the hair inlet, and the razor blade being configured to rotate in a preset direction;

[0020] The cutting section includes a plurality of cutting blades spaced apart circumferentially along the support section. Each cutting blade has a blade edge at one end away from the support section. In the orthographic projection of the cutting section onto the plane where the support section is located, the blade edge extends in an arc shape and protrudes circumferentially along the support section. The protruding direction of the blade edge is opposite to the preset direction, so that the two ends of the blade edge are located in front of the middle region.

[0021] In the technical solution of this application, the two ends of the blade are located in front of the middle area in a preset direction. During the shaving process, the two ends can initially gather and limit the hair, prevent the hair from being pushed into the hair hole, and ensure that the blade head assembly has a strong ability to gather and capture hair, thereby improving the shaving efficiency and cleanliness of the razor.

[0022] In one possible implementation, the preset direction is the same as the first direction.

[0023] In the technical solution of this application, the edge of the blade and the hair inlet hole can form an olive-shaped cutting area, which can hug, lock and cut the hair in the hair inlet hole, significantly improving the hair capture effect of the blade head assembly and the shaving efficiency and cleanliness of the shaver, shortening the shaving time and greatly improving the user experience.

[0024] In one possible implementation, the blade has a first cutting edge and a second cutting edge disposed opposite to each other along the preset direction, the first cutting edge being located in front of the second cutting edge in the preset direction, and the first edge being located in front of the second edge in the first direction.

[0025] In the orthographic projection of the cutter head assembly onto the plane where the support is located, when the first cutting edge intersects with the first edge, the cutting area formed by the first cutting edge and the first edge is 30mm. 2 ~70mm 2 .

[0026] In the technical solution of this application, the cutting area is 30mm. 2 ~70mm 2 This helps to balance the whisker-catching ability of the razor head assembly and the structural strength of the razor's moving blades, avoiding a cutting area of ​​less than 30mm. 2 This can lead to insufficient whisker-catching ability and reduced shaving efficiency, while also avoiding a cutting area larger than 70mm. 2 This can cause the cutting blade area to become too large, making the blade prone to curling or even breakage and failure.

[0027] In one possible implementation, in the orthographic projection of the cutting portion onto a plane perpendicular to the support portion, the blade extends in an arc shape and protrudes along the axial direction of the support portion, forming a preset arc, so that the two end regions of the blade are closer to the support portion than the middle region.

[0028] In the technical solution of this application, the blade surface has a smooth shape, which can better fit the feed part, thereby improving the cutting efficiency of the blade assembly.

[0029] In one possible implementation, there are multiple cutting portions, which are arranged at radial intervals along the support portion.

[0030] In the technical solution of this application, by setting multiple cutting sections, multiple hair infeed sections can be adapted to form a multi-level collaborative cutting channel, which is beneficial to improving shaving efficiency and cleanliness.

[0031] In one possible implementation, the support portion is provided with a plurality of chip-removing grooves, which penetrate the support portion along the axial direction of the support portion, and the plurality of chip-removing grooves are spaced apart along the circumferential direction of the support portion.

[0032] In the technical solution of this application, by setting multiple chip-removing grooves, fine hair falling from the shaving hole can be fully collected, improving the efficiency of removing fine hair and preventing fine hair from affecting the cutting work.

[0033] In one possible implementation, the position of each of the chip-leaking grooves corresponds to the position of one of the cutting blades, and in the orthographic projection of the cutting portion onto the plane where the support portion is located, the orthographic projection of the cutting blade corresponding to the chip-leaking groove is at least partially located within the area enclosed by the outline of the chip-leaking groove.

[0034] In the technical solution of this application, by setting the orthographic projection of the cutting blade corresponding to the chip tray to be at least partially located within the area enclosed by the outline of the chip tray, the collection efficiency of fine hair is further improved, so that the cut hair can fall into the chip tray and enter the hair collection chamber of the shaver, avoiding affecting the cutting work and causing cutting jamming.

[0035] In one possible implementation, the radian of the cutting edge in the orthographic projection of the cutting portion onto the plane where the support portion is located is less than or equal to 20 rad.

[0036] In the technical solution of this application, by setting the curvature of the blade to be less than or equal to 20 rad, the shaving feel of the blade head assembly is effectively guaranteed, and the blade curvature is avoided from pulling hair and skin due to insufficient smoothness when it is greater than 20 rad, which would cause user discomfort.

[0037] Secondly, this application provides a razor that includes the blade assembly provided in any embodiment of the first aspect. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0039] Figure 1 This is a schematic diagram of the cutter head assembly provided in an embodiment of this application;

[0040] Figure 2 A top view of the razor foil provided in an embodiment of this application;

[0041] Figure 3 This is a schematic diagram of the structure of the razor foil provided in an embodiment of this application;

[0042] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0043] Figure 5 A cross-sectional view of the razor blade foil provided in an embodiment of this application;

[0044] Figure 6 This is a schematic diagram of the moving blade of a razor provided in an embodiment of this application;

[0045] Figure 7 A top view of the moving blades of a razor provided in an embodiment of this application;

[0046] Figure 8 for Figure 7 Enlarged view of point B in the middle;

[0047] Figure 9 A side view of the moving blades of a razor provided in an embodiment of this application;

[0048] Figure 10 for Figure 9 Enlarged view of point C in the middle;

[0049] Figure 11 This is a partial enlarged view of the cutter head assembly provided in an embodiment of this application.

[0050] The reference numerals in the figure indicate:

[0051] 1- Shaver foil;

[0052] 11-Top cover; 111-Beard entry section; 1111-Beard entry hole; 1111a-First edge; 1111aa-Arc-shaped segment; 1111b-Second edge; 1111c-Cutting segment; 1111d-First beard entry segment; 1111e-Second beard entry segment; 1112-Beard entry bone position; 112-Separation section; 113-Central base; 1131-Base body; 1132-Base edge;

[0053] 12-Side wall; 13-Flange; 131-Positioning notch; 14-Accommodation space;

[0054] 2- Shaver movement;

[0055] 21-Support section; 211-Chip leakage groove; 212-Punching hole;

[0056] 22-Cutting part; 221-Cutting blade; 2211-Blade edge; 2211a-First cutting edge; 2211b-Second cutting edge; 2212-Reinforcing rib; 2213-Cutting area.

[0057] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0058] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0059] The directional terms used in the embodiments of this application, such as "up," "down," and "side," are generally based on the relative relationships shown in the figures. These directional terms are used merely to more clearly describe the relationships between structures, not to describe absolute directions. When the product is placed in different orientations, the orientation may change; for example, "up" and "down" may be interchanged.

[0060] Unless otherwise defined, all technical terms used in the embodiments of this application have the same meaning as commonly understood by one of ordinary skill in the art.

[0061] To make the technical solutions and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0062] Razors are an essential tool for grooming hair in daily life. Razors are divided into manual and automatic types. In electric razors, the combination of a foil and moving blades is usually used to cut the hair.

[0063] Currently, the hair inlet holes in most shavers are rectangular strips. During shaving, the hair is easily pushed outside the hair inlet holes and is difficult to gather, resulting in poor hair catching ability of the shaver, reduced shaving efficiency, and affecting the shaver's cleanliness and user experience.

[0064] To address the aforementioned technical problems, this application provides a razor head assembly and a razor that can improve hair-catching ability and shaving efficiency.

[0065] like Figures 1 to 5 As shown, the razor head assembly provided in this application embodiment includes a razor foil 1. The razor foil 1 includes a connected top cover 11 and a side wall 12. The side wall 12 is arranged around the top cover 11. The top cover 11 is provided with a hair inlet portion 111. The hair inlet portion 111 includes a plurality of hair inlet holes 1111 arranged circumferentially along the top cover 11. Each hair inlet hole 1111 penetrates the top cover 11 along the axial direction of the top cover 11. The hair inlet hole 1111 has a first edge 1111a and a second edge 1111b arranged opposite to each other along the circumferential direction of the top cover 11. The first edge 1111a and the second edge 1111b both include an arc segment 1111aa. The arc segment 1111aa extends in an arc shape and protrudes in a first direction R along the circumferential direction of the top cover 11.

[0066] The first direction R is the direction extending around the central axis of the top cover 11. From the top view of the cutter head assembly, the first direction R can be either counterclockwise or clockwise.

[0067] like Figure 2 As shown in Figure 3, the top cover 11 is generally circular. The side wall 12 is connected to the edge of the top cover 11 and extends axially along the top cover 11. The razor foil 1 also includes a flange 13, which is located at the end of the side wall 12 away from the top cover 11 and is disposed around the side wall 12. The flange 13 extends in a direction parallel to the radial direction of the top cover 11. The flange 13 has a positioning notch 131, which is used to position the razor foil 1 during assembly. There may be one or more positioning notches 131, for example... Figure 2As shown, there are two positioning notches 131, which are arranged opposite each other along the radial direction of the top cover 11.

[0068] The razor blade 1 is adapted to work with the razor blade 2 to cut hair. The top cover 11 and the side wall 12 enclose a receiving space 14 for accommodating the razor blade 2 and other components.

[0069] The hair inlet 111 is annular and arranged around the central axis of the top cover 11. Multiple hair inlet holes 1111 are separated from each other and have roughly the same shape. Hair can pass through the hair inlet holes 1111 and enter the receiving space 14, so that it can be cut by the moving blade 2 of the razor.

[0070] The arcuate segment 1111aa of the first edge 1111a and the arcuate segment 1111aa of the second edge 1111b both protrude along the first direction R, for example... Figure 2 or Figure 3 As shown, the first direction R is counterclockwise, that is, the arc segment 1111aa of the first edge 1111a and the arc segment 1111aa of the second edge 1111b both protrude in the counterclockwise direction, and the middle region of the arc segment 1111aa is closer to the front end of the first direction R than the two end regions.

[0071] The arcuate segments 1111aa of the first edge 1111a and 1111aa of the second edge 1111b have approximately the same curvature, making the hair inlet 1111 roughly "C" shaped. Compared to the rectangular strip-shaped hair inlet structure, the "C" shaped hair inlet structure has a longer extension length. During shaving, the hair is more likely to gather in the middle area of ​​the arcuate segment 1111aa and be concentrated and cut, preventing the hair from being pushed to areas outside the hair inlet 1111. This improves the hair gathering and capturing ability of the hair inlet 111, thereby improving the shaving efficiency and cleanliness of the razor.

[0072] Some shavers on the market use a V-shaped hair inlet hole (1) for the blade. While this design improves hair capture compared to a rectangular strip-shaped inlet hole, the abrupt change in shape at the V-shaped intersection causes noticeable pulling on the hair and skin, affecting shaving comfort. The C-shaped hair inlet hole 1111 provided in this embodiment has a more uniform curvature and a smoother, gentler shape, reducing the pulling force on the hair, minimizing skin irritation, and improving shaving comfort and feel.

[0073] The razor head assembly provided in this application embodiment has multiple hair inlet holes 1111 spaced circumferentially along the top cover 11, allowing hair to enter the hair inlet holes 1111 for easy hair cutting. Since the first edge 1111a and the second edge 1111b of the hair inlet holes 1111 both have arc-shaped segments 1111aa that extend in an arc shape, the hair entering the hair inlet holes 1111 can be gathered under the guidance of the arc segments 1111aa, thereby improving the hair gathering and capturing ability of the razor head assembly, which is conducive to improving the shaving efficiency and cleanliness of the razor and enhancing the user experience. At the same time, the smooth shape of the hair inlet holes 1111 makes the hair more evenly stressed, reducing the pulling force on the hair, which is conducive to reducing skin irritation and improving shaving comfort.

[0074] In some embodiments, there are multiple feed vents 111, and the multiple feed vents 111 are arranged concentrically along the radial direction of the top cover 11.

[0075] For example Figure 2 As shown, there are two shaving parts 111, which are distributed radially at intervals along the top cover 11, and both shaving parts 111 are arranged around the central axis of the top cover 11.

[0076] For example, the entry holes 1111 of the plurality of entry portions 111 are identical in shape, for example Figure 3 and Figure 4 As shown, the two whisker inlets 1111 are both roughly "C" shaped and protrude along the first direction R.

[0077] In this embodiment, by setting multiple hair inlets 111, a multi-level hair-catching channel is formed, which increases the shaving area, which is beneficial to improving shaving efficiency and cleanliness, and reducing shaving time.

[0078] In some embodiments, the beard insertion portion 111 includes a plurality of beard insertion ribs 1112 arranged circumferentially spaced along the top cover 11, the gap between any two adjacent beard insertion ribs 1112 forms a beard insertion hole 1111, and the central region of the beard insertion rib 1112 protrudes axially relative to at least one end of the beard insertion rib 1112 relative to the top cover 11.

[0079] like Figure 3 and Figure 4 As shown, multiple beard entry points 1112 are arranged along a ring-shaped interval, and each pair of adjacent beard entry points 1112 defines a beard entry hole 1111.

[0080] The shaving head 1112 has two ends that are radially opposite to each other along the top cover 11. The middle region of the shaving head 1112 is located between the two ends. Since the middle region of the shaving head 1112 is raised along the axial direction of the top cover 11 relative to at least one end of the shaving head 1112, the position of the middle region of the shaving head 1112 is higher than the position of at least one end. That is, the middle region of the shaving head 1112 is further away from the flange portion 13 of the razor foil 1 than the at least one end.

[0081] For example Figure 5 As shown, the cross-section of the beard bone position 1112 of the outer beard portion 111 is roughly arched, and the middle region of the beard bone position 1112 is higher than the two ends; the cross-section of the beard bone position 1112 of the inner side is roughly vertically flipped "L" shaped, and the middle region of the beard bone position 1112 is higher than the end near the outer side.

[0082] Optionally, the central region of the shank position 1112 has a planar surface on the side of the top cover 11 facing away from the flange portion 13 in the axial direction, or the central region of the shank position 1112 has a convex arc-shaped surface on the side of the top cover 11 facing away from the flange portion 13 in the axial direction.

[0083] In this embodiment, by setting the middle region of the beard entry point 1112 to bulge along the axial direction of the top cover 11 relative to at least one end of the beard entry point 1112, the beard entry point 1112 is generally wavy, which is beneficial to guide the hair located on the side of the beard entry part 111 into the beard entry hole 1111, improve the beard gathering effect, and at the same time improve shaving comfort and shaving feel.

[0084] In some embodiments, the top cover 11 further includes a partition 112, which is annular and located between two adjacent beard insertion sections 111, wherein the beard insertion bone positions 1112 of the two adjacent beard insertion sections 111 are connected to the partition 112. The beard insertion hole 1111 includes a cutting section 1111c and a first beard insertion section 1111d that are in communication with each other, the first beard insertion section 1111d being located at one end near the partition 112 and extending at least partially along the axial direction of the top cover 11.

[0085] like Figure 3 or Figure 5 As shown, the two feed sections 111 are located on opposite radial sides of the dividing section. Figure 4 As shown, the cutting segment 1111c is used to cut hair in conjunction with the moving blade 2 of the razor. At least a portion of the cutting segment 1111c is formed by the arcuate segment 1111aa of the first edge 1111a and the arcuate segment 1111aa of the second edge 1111b.

[0086] In this embodiment, by setting the first hair inlet section 1111d to be located near one end of the partition 112 and extending at least partially along the axial direction of the top cover 11, the hair-catching range of the hair inlet hole 1111 is expanded. This facilitates guiding the hair located in the partition section from the first hair inlet section 1111d into the hair inlet hole 1111, where it is cut in the cutting section 1111c, thereby improving the hair-catching efficiency of the head assembly and thus improving the shaving efficiency of the razor.

[0087] In some embodiments, the beard hole 1111 of the outermost beard section 1111 further includes a second beard section 1111e, which is connected to the cutting section 1111c. The second beard section 1111e is located at one end of the cutting section 1111c away from the first beard section 1111d and extends at least partially along the axial direction of the top cover 11.

[0088] like Figure 4 As shown, in the stubble inlet 1111 of the outermost stubble inlet 111, the second stubble inlet segment 1111e, the cutting segment 1111c, and the first stubble inlet segment 1111d are connected sequentially along the radial direction of the top cover 11. The second stubble inlet segment 1111e is located at the end of the cutting segment 1111c away from the partition 112, and the first stubble inlet segment 1111d is located at the end of the cutting segment 1111c close to the partition 112. The first stubble inlet segment 1111d and the second stubble inlet segment 1111e are arranged opposite each other along the radial direction of the top cover 11.

[0089] In this embodiment, by providing a second hair inlet section 1111e, the hair-catching range of the hair inlet hole 1111 is further expanded, which is beneficial to guiding the hair located on the outer edge of the shaver foil 1 from the second hair inlet section 1111e into the hair inlet hole 1111, so that it is cut in the cutting section 1111c, thereby further improving the hair-catching efficiency of the head assembly and the shaving efficiency of the shaver.

[0090] In some embodiments, the top cover 11 further includes a central base 113, and a plurality of feed portions 111 are disposed around the central base 113, the central base 113 being recessed relative to the top surface of the feed portions 111. It is understood that the top surface of the feed portions 111 is the side surface of the feed portions 111 facing away from the flange portion 13 in the axial direction of the top cover 11.

[0091] like Figure 5 As shown, the central base 113 includes a connected base body 1131 and a base edge 1132. The base edge 1132 is disposed around the outer edge of the base body 1131. The base body 1131 is planar. The base edge 1132 protrudes outward relative to the base body 1131 along the axial direction of the top cover 11, so that the central base 113 is in the shape of a groove.

[0092] In this embodiment, the concave central base 113 forms a space for temporarily storing hair, which can prevent the cut hair from clogging the hair inlet 1111 and affecting shaving efficiency. At the same time, when the central base 113 is in contact with the skin, the hair can enter the receiving space 14 inside the razor foil 1 more deeply from the hair inlet 1111, so that it can be cut off more fully, which is beneficial to improving the cleanliness of hair removal.

[0093] Based on any of the above embodiments, such as Figures 6 to 10 As shown, the razor head assembly also includes a razor blade 2, which includes a connected support portion 21 and a cutting portion 22. The cutting portion 22 is adapted to the position of the shaving feed portion 111, and the razor blade 2 is configured to rotate in a preset direction.

[0094] like Figures 6 to 8 As shown, the cutting part 22 includes a plurality of cutting blades 221 arranged circumferentially along the support part 21. The cutting blade 221 has a blade edge 2211 at one end away from the support part 21. In the orthographic projection of the cutting part 22 on the plane where the support part 21 is located, the blade edge 2211 extends in an arc shape and protrudes circumferentially along the support part 21. The protrusion direction of the blade edge 2211 is opposite to the preset direction, so that the two ends of the blade edge 2211 are located in front of the middle region.

[0095] The moving blade 2 of the shaver is disposed within the receiving space 14 of the shaver foil 1. The support part 21 is generally circular and planar, and the cutting part 22 protrudes outward relative to the support part 21. The blade 2211 of the cutting blade 221 is used to cooperate with the hair inlet part 111, thereby rotating and cutting the hair under the drive of a motor or other driving components. Optionally, the cutting blade 221 has a cantilever structure.

[0096] The cutting blade 221 is roughly a bent, sheet-like structure, such as... Figure 7 and Figure 8 As shown, from a top-down view of the razor's moving blade 2, the blade 2211 has a bent arc-shaped structure. When the razor's moving blade 2 is configured to rotate counterclockwise, the bending and protruding direction of the blade 2211 is clockwise; when the razor's moving blade 2 is configured to rotate clockwise, the bending and protruding direction of the blade 2211 is counterclockwise.

[0097] like Figure 8 As shown, the two ends of the blade 2211 are located in front of the middle area in a preset direction. During the shaving process, the two ends can initially gather and limit the hair, preventing the hair from being pushed into the hair hole 1111, ensuring that the head assembly has a strong ability to gather and capture hair, thereby improving the shaving efficiency and cleanliness of the razor.

[0098] In some embodiments, the preset direction is the same as the first direction R, that is, the razor blade 2 is configured to rotate along the first direction R, the bending and protruding direction of the blade 2211 is opposite to the first direction R, and at the same time, the bending and protruding direction of the blade 2211 is opposite to the bending and protruding direction of the shaving hole 1111.

[0099] like Figure 11 As shown, the edge of the blade 2211 and the hair inlet 1111 can form an olive-shaped cutting area 2213, which can hug, lock and cut the hair in the hair inlet 1111, significantly improving the hair capture effect of the head assembly and the shaving efficiency and cleanliness of the shaver, shortening the shaving time and greatly improving the user experience.

[0100] In some embodiments, such as Figure 8 As shown, the blade 2211 has a first cutting edge 2211a and a second cutting edge 2211b arranged opposite each other along a preset direction. The first cutting edge 2211a is located in front of the second cutting edge 2211b in the preset direction, and the first edge 1111a is located in front of the second edge 1111b in the first direction R. In the orthographic projection of the blade assembly onto the plane where the support 21 is located, when the first cutting edge 2211a and the first edge 1111a intersect, the cutting area formed by the first cutting edge 2211a and the first edge 1111a is 30mm. 2 ~70mm 2 .

[0101] The first cutting edge 2211a and the first edge 1111a cooperate to cut the hair, and the area of ​​the cutting region 2213 formed by the first cutting edge 2211a and the first edge 1111a can be 30mm². 2 40mm 2 50mm 2 70mm 2 wait.

[0102] This design helps balance the whisker-catching ability of the razor head assembly and the structural strength of the moving blade 2 of the razor, preventing the cutting area from being less than 30mm. 2 This can lead to insufficient whisker-catching ability and reduced shaving efficiency, while also avoiding a cutting area larger than 70mm. 2 This can cause the cutting blade 221 to become too large, making the cutting edge 2211 prone to curling or even breakage and failure.

[0103] In some embodiments, in the orthographic projection of the cutting portion 22 onto a plane perpendicular to the support portion 21, the blade 2211 extends in an arc shape and protrudes along the axial direction of the support portion 21 to form a preset arc, so that the two end regions of the blade 2211 are closer to the support portion 21 than the middle region.

[0104] like Figure 9 and Figure 10 As shown, the surface of the blade 2211 is an arc-shaped convex surface with a raised center and concave ends. The surface of the blade 2211 is smooth and gentle. The shape of the side surface of the hair inlet 1112 near the flange 13 is adapted to the preset curvature of the blade 2211 surface, so that the hair inlet 1112 can fit more closely with the blade 2211 and cut the hair quickly and thoroughly.

[0105] With this setting, the surface of the blade 2211 is rounded, which allows it to better fit the feed section 111, thereby improving the cutting efficiency of the blade assembly.

[0106] In some embodiments, when there are multiple whisker feed portions 111, there are multiple cutting portions 22, and the multiple cutting portions 22 are arranged radially spaced along the support portion 21, so that the multiple whisker feed portions 111 and the multiple cutting portions 22 are adapted one by one.

[0107] For example Figure 6 As shown, there are two cutting sections 22, and the two cutting sections 22 can be adapted to the two feed sections 111 in a one-to-one correspondence.

[0108] In this embodiment, by providing multiple cutting sections 22, multiple hair infeed sections 111 can be adapted to form a multi-level collaborative cutting channel, which is beneficial to improving shaving efficiency and cleanliness.

[0109] In some instances, such as Figure 6 As shown, the support part 21 has a plurality of chip-removing grooves 211, which penetrate the support part 21 along the axial direction of the support part 21, and the plurality of chip-removing grooves 211 are spaced apart along the circumferential direction of the support part 21.

[0110] By setting multiple chip removal grooves 211, fine hair falling from the hair inlet 1111 can be fully collected, improving the efficiency of removing fine hair and preventing fine hair from affecting the cutting work.

[0111] In some embodiments, the position of each chip-removing groove 211 corresponds to the position of a cutting blade 221. In the orthographic projection of the cutting part 22 onto the plane where the support part 21 is located, the orthographic projection of the cutting blade 221 corresponding to the chip-removing groove 211 is at least partially located within the area enclosed by the outline of the chip-removing groove 211.

[0112] For example, such as Figure 6As shown, the cutting blade 221 of the outermost cutting section 22 is located at the edge of the support section 21, and the cutting blade 221 of the inner cutting section 22 is made by stamping. After the stamping operation, multiple stamping holes 212 are formed on the support section 21. The chip removal groove 211 is interconnected with the stamping holes 212 and includes a part of the stamping holes 212, so that the multiple chip removal grooves 211 correspond one-to-one with the multiple cutting blades 221 of the inner cutting section 22.

[0113] In this embodiment, by setting the orthographic projection of the cutting blade 221 corresponding to the lint drain 211 to be at least partially located within the area enclosed by the outline of the lint drain 211, the collection efficiency of fine hair is further improved, so that the cut hair can fall into the lint drain 211 and enter the hair collection chamber of the shaver, avoiding affecting the cutting work and causing cutting jamming.

[0114] In some embodiments, the radius of the cutting edge 2211 in the orthographic projection of the cutting part 22 onto the plane where the support part 21 is located is less than or equal to 20 rad.

[0115] For example, the curvature of the blade 2211 can be 10 rad, 15 rad, 20 rad, etc. The curvature of the first edge 1111a and the second edge 1111b can be the same as the curvature of the blade 2211.

[0116] In this embodiment, by setting the curvature of the blade 2211 to be less than or equal to 20 rad, the shaving feel of the head assembly is effectively guaranteed, and the blade 2211 is prevented from pulling on the hair and skin due to its uneven shape when the curvature is greater than 20 rad, thus avoiding user discomfort.

[0117] Optionally, a reinforcing rib 2212 is provided on the side of the cutting blade 221 away from the punching hole 212. The reinforcing rib 2212 is connected to the cutting blade 221 and the support part 21 respectively. The reinforcing rib 2212 improves the structural strength of the cutting blade 221 and can prevent the cutting blade 221 from collapsing and failing.

[0118] For example, the width d1 of the cutting segment 1111c in the circumferential direction of the top cover 11 is 0.3mm to 0.34mm, and the width d2 of the first hair-entry segment 1111d and the second hair-entry segment 1111e in the circumferential direction of the top cover 11 is 0.32mm to 0.36mm. Optionally, d1 < d2, thereby using the wider first hair-entry segment 1111d and the wider second hair-entry segment 1111e to better guide the hair into the cutting segment 1111c.

[0119] For example, the thickness of the whisker-feathering part 111 in the axial direction of the top cover 11 is 0.1 mm to 0.14 mm, which reduces the space occupied by the whisker-feathering part 111 while ensuring whisker-catching ability.

[0120] For example, the lengths of the first cutting edge 2211a and the second cutting edge 2211b are 1.7mm to 1.9mm, which ensures cutting efficiency while preventing the cutting blade 221 from becoming too large and reducing its rigidity.

[0121] For example, the distance between the first cutting edge 2211a and the second cutting edge 2211b is 0.5mm to 2mm, which ensures that the cutting blade 221 has reliable structural strength while saving material costs.

[0122] This application also provides a razor, which includes the blade assembly provided in any of the above embodiments.

[0123] For example, the razor is a rotary electric razor.

[0124] Since the razor provided in this application includes the blade head assembly provided in any of the above embodiments, the razor provided in this application has the beneficial effects of the blade head assembly provided in any of the above embodiments, which will not be repeated here.

[0125] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0126] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only.

[0127] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A blade assembly, characterized in that, The razor head assembly includes a razor foil (1), which includes a connected top cover (11) and a side wall (12). The side wall (12) surrounds the top cover (11). The top cover (11) has a hair inlet (111), which includes a plurality of hair inlet holes (1111) spaced circumferentially along the top cover (11). Each hair inlet hole (1111) is located along the top cover (11). The axial passage extends through the top cover (11), and the inlet hole (1111) has a first edge (1111a) and a second edge (1111b) arranged opposite each other in the circumferential direction of the top cover (11). Both the first edge (1111a) and the second edge (1111b) include an arc segment (1111aa), which extends in an arc shape and protrudes in a first direction (R) in the circumferential direction of the top cover (11).

2. The cutter head assembly according to claim 1, characterized in that, There are multiple feed sections (111), and the multiple feed sections (111) are arranged concentrically along the radial direction of the top cover (11).

3. The cutter head assembly according to claim 2, characterized in that, The beard insertion section (111) includes a plurality of beard insertion bone positions (1112) arranged circumferentially spaced along the top cover (11), the gap between any two adjacent beard insertion bone positions (1112) forms the beard insertion hole (1111), and the central region of the beard insertion bone position (1112) bulges along the axial direction of the top cover (11) relative to at least one end of the beard insertion bone position (1112).

4. The cutter head assembly according to claim 3, characterized in that, The top cover (11) also includes a partition (112), which is annular and located between two adjacent beard-feathering parts (111). The beard-feathering bone positions (1112) of the two adjacent beard-feathering parts (111) are connected to the partition (112). The stubble inlet (1111) includes a cut section (1111c) and a first stubble inlet section (1111d) that are in communication with each other. The first stubble inlet section (1111d) is located at one end near the partition (112) and extends at least partially along the axial direction of the top cover (11).

5. The cutter head assembly according to claim 4, characterized in that, The outermost whisker inlet (1111) of the whisker inlet (111) also includes a second whisker inlet section (1111e), which is connected to the cutting section (1111c). The second whisker inlet section (1111e) is located at one end of the cutting section (1111c) away from the first whisker inlet section (1111d) and extends at least partially along the axial direction of the top cover (11).

6. The cutter head assembly according to claim 3, characterized in that, The top cover (11) also includes a central base (113), and a plurality of the tendrils (111) are arranged around the central base (113), the central base (113) being recessed relative to the top surface of the tendrils (111).

7. The cutter head assembly according to any one of claims 1 to 6, characterized in that, The blade assembly also includes a razor blade (2), which includes a connected support (21) and a cutting part (22). The cutting part (22) is adapted to the position of the hair inlet (111), and the razor blade (2) is configured to rotate in a preset direction. The cutting section (22) includes a plurality of cutting blades (221) spaced circumferentially along the support section (21). The cutting blade (221) has a blade edge (2211) at one end away from the support section (21). In the orthographic projection of the cutting section (22) on the plane where the support section (21) is located, the blade edge (2211) extends in an arc shape and protrudes circumferentially along the support section (21). The protrusion direction of the blade edge (2211) is opposite to the preset direction, so that the two ends of the blade edge (2211) are located in front of the middle region.

8. The cutter head assembly according to claim 7, characterized in that, The preset direction is the same as the first direction (R).

9. The cutter head assembly according to claim 8, characterized in that, The blade (2211) has a first cutting edge (2211a) and a second cutting edge (2211b) arranged opposite to each other along the preset direction. The first cutting edge (2211a) is located in front of the second cutting edge (2211b) in the preset direction, and the first edge (2211a) is located in front of the second edge (2211b) in the first direction (R). In the orthographic projection of the cutter head assembly onto the plane where the support (21) is located, when the first cutting edge (2211a) and the first edge (1111a) intersect exactly, the cutting area formed by the first cutting edge (2211a) and the first edge (1111a) is 30 mm. 2 ~70mm 2 .

10. The cutter head assembly according to claim 7, characterized in that, In the orthographic projection of the cutting part (22) onto a plane perpendicular to the support part (21), the blade (2211) extends in an arc shape and protrudes along the axial direction of the support part (21) to form a preset arc, so that the two ends of the blade (2211) are closer to the support part (21) than the middle area.

11. The cutter head assembly according to claim 7, characterized in that, There are multiple cutting portions (22), and the multiple cutting portions (22) are arranged at radial intervals along the support portion (21).

12. The cutter head assembly according to claim 11, characterized in that, The support part (21) is provided with a plurality of chip-leaking grooves (211), which penetrate the support part (21) along the axial direction of the support part (21) and are spaced apart along the circumferential direction of the support part (21).

13. The cutter head assembly according to claim 12, characterized in that, The position of each chip-leaking groove (211) corresponds to the position of a cutting blade (221). In the orthographic projection of the cutting part (22) on the plane where the support part (21) is located, the orthographic projection of the cutting blade (221) corresponding to the chip-leaking groove (211) is at least partially located within the area enclosed by the outline of the chip-leaking groove (211).

14. The cutter head assembly according to claim 7, characterized in that, In the orthographic projection of the cutting part (22) onto the plane where the support part (21) is located, the radius of the blade (2211) is less than or equal to 20 rad.

15. A razor, characterized in that, The razor includes the blade assembly as described in any one of claims 1 to 14.

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