Blade body replaceable razor

Abstract

A razor head (1) is configured from a blade body section (10), a support body (20), and a cover section (30). The blade body part (10) is provided with a blade body (11) whose length direction is a direction intersecting with one direction. The support body (20) is connected to the tip of the shank (2) and is provided with a placement surface on which the blade body (10) is placed in a state in which the blade tip (11a) of the blade (11) faces the side connected to the shank (2), and the blade body (10) is placed on the placement surface. The cover section (30) is attached to the support body (20), while exposing the blade body (11), and sandwiches the blade body section (10) together with the support body (20). In addition, the supporting body (20), the cover part (30) and the handle part (20) are all metal blade bodies made of metal. Furthermore, when the cover part (30) is detached from the supporting body (20), only the blade body part (10) can be replaced.

Description

(19) State Intellectual Property Office (12) Invention Patent Application (10) Application Publication Number (43) Application Publication Date (21) Application Number 202480058460.1 (22) Application Date 2024.07.31 (30) Priority Data 2023-190070 2023.11.07 JP (85) PCT International Application Entering National Phase Date 2026.03.12 (86) PCT International Application Application Data PCT / JP2024 / 027425 2024.07.31 (87) PCT International Application Publication Data WO2025 / 100008 JA 2025.05.15 (71) Applicant: Kai Corporation, Knife Products Development Center, Japan (72) Inventor: Hiroshi Yamase (74) Patent Agency: China Council for the Promotion of International Trade Patent & Trademark Office Co., Ltd. 11038 Patent Attorney Han Hui (51) Int.Cl. B26B 21 / 14 (2006.01) B26B 21 / 40 (2006.01) B26B 21 / 52 (2006.01) (54) Invention Title: Replaceable Blade Razor (57) Abstract: The razor head (1) is composed of a blade body (10), a support body (20), and a cover body (30). A blade (11) is provided in the blade body (10) with its length direction intersecting a direction. The support body (20) is connected to the front end of the handle (2) and has a mounting surface on which the blade body (10) is placed when the tip (11a) of the blade body (11) faces the side connected to the handle (2). The blade body (10) is placed on the mounting surface. The cover (30) exposes the blade (11) while clamping the blade (10) together with the support (20) and mounting it to the support (20). Furthermore, the support (20), cover (30), and handle (20) are all made of metal, forming an all-metal blade. Moreover, when the cover (30) is removed from the support (20), only the blade (10) can be replaced.Claims 1 page, Description 16 pages, Drawings 21 pages, CN 121843797 A 2026.04.10 CN 1 21 84 37 97 A 1. A replaceable razor, the razor having: a handle (2) extending in one direction; and a razor head (1) mounted on a front end (50) of the handle in the one direction, wherein the razor head has: a blade portion (10) having a blade (11) extending in a direction intersecting the one direction; a support body (20) connected to the front end of the handle, having a mounting surface (220) on which the blade portion is placed when the tip of the blade is facing the side connected to the handle; and a cover portion (30) that exposes the blade portion while clamping the blade portion together with the support body, and is mounted on the support body, wherein the razor is an all-metal blade with the support body, the cover portion, and the handle being made of metal. 1. When the cover is removed from the support, only the blade body can be replaced. 2. The blade-replaceable razor according to claim 1, wherein the surfaces exposed to the outside of the support, the cover, and the handle are mirror-like. 3. The blade-replaceable razor according to claim 2, wherein the cross-sectional shape of the handle, with the one direction as its normal, is circular or a shape in which the corners of a polygon are rounded. 4. The blade-replaceable razor according to claim 3, wherein the handle is a tapered shape with a gradually decreasing cross-sectional area from the rear end side opposite to the front end side towards the front end side. 5. The blade-replaceable razor according to claim 4, wherein the handle is solid. 6. The replaceable razor according to any one of claims 1 to 5, wherein the replaceable razor is a replaceable razor with a bracket, wherein a bracket (500) is provided, the bracket being a bottomed cylindrical shape having a side surface and a bottom surface, and the replaceable razor is held by inserting the rear end of the handle on the side opposite to the front end into a hollow portion (503) formed by the side surface (501) and the bottom surface (502), the bracket having a side surface formed along the insertion direction of the handle, and a magnet (506) for holding the bracket to magnetically attach to a magnetic member is provided on this side surface. Claims 1 / 1 page 2 CN 121843797 A Replaceable Razor Technical Field

[0001] This disclosure relates to a replaceable razor (hereinafter, simply referred to as a razor) that can replace only the razor body. Background Art

[0002] Conventionally, Patent Document 1 disclosed a replaceable razor that can replace only the razor body that integrates multiple blades.

[0003] The replacement blade razor includes: a support having a grip and a head; and a razor head having a razor plate member and a cover member for housing the blade body.The blade assembly and the cover assembly are supported at the lower end of the head of the support in a swingable manner via a support shaft. A locking claw is provided at the upper end of the cover assembly, allowing the cover assembly and the blade assembly to open and close by engaging with the locking shaft at the upper end of the blade assembly. Additionally, two left and right locking claws are provided at the upper end of the blade assembly, allowing the blade assembly and the head of the support to open and close by engaging with locking recesses at the upper end of the head of the support. Furthermore, a permanent magnet is provided inside the head of the support to magnetically attract the blade body.

[0004] In this replacement razor with such a structure, when the left and right locking claws are removed from the locking recesses to open the blade assembly and the head of the support, the head is in a swingable state and the blade body is removed from the permanent magnet. Therefore, when the locking claws are removed from the locking shafts to open the cover assembly and the blade assembly in this state, the blade body can be easily removed. Furthermore, when the cover member and the blade member are opened while the blade member and the head of the support are closed, the permanent magnet can abut against the blade body. Therefore, the blade body can be easily installed by adsorbing onto the permanent magnet.

[0005] Prior Art Documents

[0006] Patent Documents

[0007] Patent Document 1: Japanese Patent Application Publication No. 2010-131228 Summary of the Invention

[0008] Problems to be Solved by the Invention

[0009] However, in the above-described replacement blade razor, the cover member and the blade member are separately mounted to the lower end of the head of the support in a swingable manner, and a mechanism is required that allows for separate opening and closing of the cover member and the blade member, as well as the opening and closing of the blade member and the head of the support. Therefore, the structure of the razor head becomes complicated.

[0010] The object of this disclosure is to provide a razor with a simple structure that allows only the blade body to be replaced.

[0011] Solution to the Problem

[0012] In order to achieve the above-mentioned objective, the first invention is a razor having: a handle (2) extending in one direction; and a razor head (1) mounted on a front end (50) of one side of the handle in one direction, wherein the razor head has: a blade body (10) having a blade (11) extending in a direction intersecting the one direction; a support body (20) connected to the front end of the handle, having a mounting surface (220) for mounting the blade body when the blade tip is facing the side connected to the handle; and a cover (30) that exposes the blade body while clamping the blade body together with the support body and is mounted on the support body. The razor is an all-metal blade with the support body, cover, and handle made of metal, and when the cover is removed from the support body, only the blade body can be replaced.

[0013] In this way, by designing the blade as an all-metal blade, a razor with a substantial feel can be provided.Furthermore, in razors with a structure that exposes the blade from the cover, a unified structure with an all-metal blade body is possible, resulting in a simple and aesthetically pleasing design that contributes to a high-end feel. Additionally, the blade body can be easily detached from the support by removing the cover. This allows for replacement of only the blade body.

[0014] Moreover, for example, the blade body can be replaced when it becomes dull, while other parts (handle, cover, support) remain unreplaced for extended use, thus reducing waste. Therefore, in addition to improving the durability of each component through metal, the product becomes aesthetically pleasing and high-end, enabling long-term use and contributing to waste reduction.

[0015] Furthermore, since only the blade body can be replaced, waste can be reduced with minimal replacements, aligning with SDG 12 "Responsible Production and Consumption" target 12.5 "To significantly reduce waste generation by preventing, reducing, recycling, and reusing waste by 2030."

[0016] In the second invention, the surfaces exposed to the outside in the support body, the cover, and the handle are mirror-like. By making the exposed surfaces mirror-like, the razor can have a bright and shiny appearance with a metallic surface, and it can also be a structure that is easy to clean and maintain. In addition, it can be a razor that provides a smooth and comfortable feel, and provides a smooth and fluid feel when shaving with the blade, even at the part of the mirror in the cover that comes into contact with the skin.

[0017] In the third invention, the cross-sectional shape of the handle, with one direction as the normal direction, is circular or a shape in which the corners of a polygon are rounded. By setting the handle to such a shape, a simpler design can be achieved, and it can also be a shape that is easy to hold during use.

[0018] In the fourth invention, the handle is a tapered shape in which the cross-sectional area gradually decreases from the rear end side opposite to the front end side toward the front end side. By setting the handle to a tapered shape, it can be a shape that is thin at the connection with the razor head and thick at the rear end with a thicker root. Therefore, the handle can be designed to be simple while also being easier to hold during use.

[0019] In the fifth invention, the handle is solid. This gives the razor a heavier, more substantial feel and improves the rigidity of the product.

[0020] In the sixth invention, a bracket (500) is provided, which is a bottomed cylindrical shape with sides and a bottom. The razor is held in place by inserting the rear end of the handle, which is opposite to the front end, into a hollow portion (503) formed by the side (501) and the bottom (502). The bracket has a side formed along the insertion direction of the handle, and a magnet (506) is provided on this side to hold the bracket magnetically attached to a magnetic member.

[0021] With a bracket having such a structure, the razor can be easily stored simply by inserting it into the bracket.Furthermore, since the holder can be installed simply by magnetically attaching it to a wall or other surface made of magnetic components using a magnet, the storage location of the razor can be secured, eliminating the need to secure a storage location on a sink or similar surface. Additionally, because the holder is attached to the magnetic component using the magnetic force of the magnet, it can be easily disassembled and moved. Moreover, unlike structures such as suction cups where the adhesion may gradually decrease, it can be installed for extended periods.

[0022] Furthermore, when the razor has an all-metal blade with a mirror-like exposed surface, it is preferable that the exposed surface of the holder is also mirror-like. This gives the holder a bright and glossy appearance, making it aesthetically pleasing and easy to clean. It also provides a pleasant tactile feel. Furthermore, it creates a sense of unity with the main body of the razor, further enhancing the design.

[0023] Furthermore, the bracketed reference numerals used to indicate each component element, etc., represent an example of the correspondence between the component element, etc., and the specific component elements, etc., described in the manner described later on page 2 / 16 of the Embodiment Specification 4 CN 121843797 A. Brief Description of the Drawings

[0024] FIG1 is a perspective view of the razor of the first embodiment viewed from the upper right front.

[0025] FIG2 is a front view of the razor shown in FIG1. ​​

[0026] FIG3 is a bottom view of the razor shown in FIG1. ​​

[0027] FIG4 is a right view of the razor shown in FIG1. ​​

[0028] FIG5 is a rear view of the razor shown in FIG1. ​​

[0029] FIG6 is an exploded perspective view viewed from the upper right front.

[0030] FIG7 is an exploded perspective view viewed from the lower left rear.

[0031] FIG8A is an enlarged view of the blade body in FIG6.

[0032] FIG8B is an enlarged view of the blade body in FIG7.

[0033] FIG9A is a perspective view of the blade body in an exploded view of the blade body.

[0034] FIG9B is a perspective view of the blade holder component in an exploded view of the blade body.

[0035] FIG9C is a perspective view of the frame in an exploded view of the blade body.

[0036] FIG10 is a perspective view showing the state after removing the cover and blade body from the razor.

[0037] FIG11A is an enlarged view of the back panel in FIG6.

[0038] FIG11B is an enlarged view of the back panel in FIG7.

[0039] FIG12A is an enlarged view of the outer shell in FIG6.

[0040] FIG12B is an enlarged view of the outer shell in FIG7.

[0041] FIG13A is an enlarged view of the cover in FIG6.

[0042] FIG13B is an enlarged view of the cover in FIG7.

[0043] FIG14A is an enlarged view of the handle in FIG6.

[0044] Figure 14B is an enlarged view of the handle in Figure 7.

[0045] Figure 15 is a cross-sectional view of the razor head cut along the YZ plane at the center position in the X-axis direction.

[0046] FIG16A is a front view showing the razor stored in the stand.

[0047] FIG16B is a rear view showing the razor stored in the stand.

[0048] FIG17A is a perspective view showing the replacement razor storage container, showing the state where the cover is installed on the container body.

[0049] FIG17B is a perspective view showing the replacement razor storage container, showing the state where the cover is removed from the container body.

[0050] FIG18 is a diagram showing the replacement razor storage container stored in the storage box. Detailed Description

[0051] Hereinafter, embodiments of the present disclosure will be described based on the accompanying drawings. In addition, other embodiments, including those described below, will be described with the same reference numerals for the same or equivalent parts between the embodiments.

[0052] (First Embodiment)

[0053] Hereinafter, the razor S of the first embodiment of the present disclosure will be described with reference to FIGS. 1 to 15.

[0054] [Structure of Razor S]

[0055] The razor S shown in Figures 1 to 5 is configured to have a razor head 1 and a handle 2 for shaving body hair. The razor S in this embodiment specification, page 3 / 16, CN 121843797 A, is an all-metal blade with at least all exposed parts made of metal. Here, the exposed surface is mirror-finished.

[0056] Furthermore, the X-axis, Y-axis, and Z-axis are shown in the accompanying drawings of this specification. The vertical direction of the razor head 1 when viewed from the front is called the X-axis, the width direction of the razor head 1 orthogonal to the X-axis is called the Y-axis, and the thickness direction of the razor head 1 orthogonal to the X-axis and Y-axis is called the Z-axis. In addition, the side of the razor head 1 in the razor S is called the front end of the razor S, and the opposite side is called the rear end of the razor S. In addition, the right and left sides along the Y-axis in Figure 2 are referred to as the right side and left side of razor S, respectively, and the upper and lower sides along the X-axis are referred to as the upper side and lower side of razor S, respectively. Furthermore, the side of the paper surface near the front along the Z-axis in Figure 2, that is, the side shown in Figure 2, is referred to as the surface side of razor S, and the opposite side of the paper surface is referred to as the back side of razor S. In addition, for each component of razor S described below, the directions corresponding to the right side, left side, upper side, lower side, surface side, and back side of razor S are referred to as the right side, left side, upper side, lower side, surface side, and back side of each component.

[0057] [Structure of razor head 1]

[0058] Razor head 1 is the part that constitutes the shaving blade in razor S. Razor head 1 is generally elliptical in shape with the X-axis as the minor axis and the Y-axis as the major axis, and is constructed with a predetermined thickness as the dimension in the Z-axis direction. Furthermore, both the head surface, which becomes the surface side of the razor head 1, and the head back, which becomes the opposite side, are both rectangular in shape with rounded outer edges in the Z-axis direction, which is the thickness direction of the razor head 1.Therefore, the razor head 1 has a rounded shape while forming the blade part. Specifically, the razor head 1 has a blade body 10, a support body 20, and a cover part 30.

[0059] [Structure of blade body 10]

[0060] The blade body 10 is a replaceable part of the razor S, as shown in Figures 6 to 9, and is composed of a blade body 11, a blade holder member 12, and a frame 13. All of these blade bodies 11, blade holder members 12, and frame 13 are made of metal.

[0061] As shown in Figure 8A, the blade body 11 is a rectangular shape with the Y-axis as its length direction, and multiple blades are arranged along the X-axis direction at a predetermined angle relative to the X-axis orthogonal to the length direction, in this case, five blades. Each blade body 11 has a blade tip 11a, as shown in Figure 1, the blade tip 11a of each blade body 11 faces the lower side of the side that is connected to the handle 2, and multiple blade bodies 11 are arranged in a manner where the blade tips 11a are evenly spaced. Therefore, shaving can be performed by moving the razor head 1 downwards. Hereinafter, the direction in which the razor head 1 moves during shaving, that is, the downward direction, will also be referred to as the shaving direction.

[0062] The razor head member 12 is a member that is integrally formed by joining multiple blades 11 together by welding or the like. The razor head member 12 has a spring structure, and the elastic force generated by the spring structure reduces the contact with the skin during shaving, and also prevents the blade part 10 from shaking when it is clamped between the support body 20 and the cover 30. As shown in FIG8A, FIG8B and FIG9B, the razor head member 12 has a mounting platform 121, a foot 122, a support 123 and a leaf spring 124.

[0063] The mounting platform 121 is a base for mounting multiple blades 11, and has multiple joints 121a arranged in a stepped shape, which are connected by the support 123. Each joint 121a extends along the Y-axis and is arranged in a straight line corresponding to the blade 11. Furthermore, in each joint 121a, the surface that becomes the joint surface of the blade 11 is a flat surface, and these surfaces are arranged parallel to each other in the X-axis direction. The surface of each joint 121a is inclined relative to the XY plane. Each blade 11 is spot-welded to each joint 121a, and each blade 11 is integrated with the mounting platform 121 in an inclined state relative to the XY plane.

[0064] The feet 122 are straight members arranged along the Y-axis, positioned on the upper and lower sides separated from the mounting platform 121, and also extend along the Y-axis like each joint 121a. Each foot 122 is located in the Z-axis direction closer to the frame 13 than the mounting platform 121, and leaf springs 124 are connected to both ends of each foot 122 in the Y-axis direction.Instruction manual, page 4 / 16, CN 121843797 A

[0065] The support portion 123 extends in the X-axis direction in a manner that intersects with each joint portion 121a and each foot portion 122, connecting each joint portion 121a and each foot portion 122. Multiple support portions 123 are provided, in this case four, with the inner two positioned corresponding to the first frame portion 131 described later in the frame 13. The support portion 123 is bent such that each joint portion 121a is arranged in a stepped manner, and at the portion connecting with each foot portion 122, the foot portion 122 is bent such that it is positioned on the back side of the joint portion 121a.

[0066] The leaf spring portion 124 is configured to bend both ends of each foot portion 122 toward the side opposite to the blade body 11. When a force is applied in the Z-axis direction, the leaf spring portion 124 undergoes elastic deformation to generate an elastic reaction force. The front end of the leaf spring portion 124 protrudes toward the back side of the frame 13, and when the blade portion 10 is mounted on the support body 20, the front end of the leaf spring portion 124 contacts the mounting surface 220 of the support body 20.

[0067] Furthermore, the blade holder member 12 is formed, for example, by stamping a sheet metal. As shown in FIG8B, each joint portion 121a is connected by a support portion 123, but if the position between each joint portion 121a that is different from the support portion 123 is retained as a punched and bent portion 121b toward the back side and kept connected to the joint portion 121a, the joint portion 121a can be strengthened. Even in this case, as long as the support portion 123 is formed at a position corresponding to the first frame portion 131 of the frame 13, interference between the bent portion 121b and the frame 13 can be avoided.

[0068] The frame 13 is the part that holds the blade 11 and the blade holder member 12 and is magnetically attracted or magnetically adsorbed by the support body 20 described later. As shown in Figures 8B and 9C, the frame 13 has a first frame portion 131 and a second frame portion 132. These first frame portions 131 and second frame portions 132 are an integral part, with both the surface and back sides being planar, for example, formed by stamping or metal forming of sheet metal.

[0069] The first frame portion 131 is a four-cornered frame shape and is part of the connecting tool holder member 12. Specifically, the first frame portion 131 is composed of an upper beam portion 131a and a lower beam portion 131b constituting one side along the Y-axis direction, and a right beam portion 131c and a left beam portion 131d constituting the other side along the X-axis direction. The tool holder member 12 is fixed to the frame 13 by joining the foot portions 122 on the surfaces of the upper beam portion 131a and the lower beam portion 131b, and by arranging the support portions 123 on the right beam portion 131c and the left beam portion 131d. The tool body 11 is also fixed to the frame 13 via the tool holder member 12.

[0070] The second frame portion 132 is elliptical in shape and is connected to the first frame portion 131 on its inner side.Specifically, the second frame portion 132 is composed of an upper beam portion 132a, a lower beam portion 132b, a right semicircular beam portion 132c, and a left semicircular beam portion 132d. The upper beam portion 132a and the lower beam portion 132b are connected to the upper beam portion 131a and the lower beam portion 131b of the first frame portion 131, respectively. The right semicircular beam portion 132c and the left semicircular beam portion 132d are respectively arranged to extend outwards from the right beam portion 131c and the left beam portion 131d of the first frame portion 131. The second frame portion 132 is generally elliptical in shape, but at the center of the upper beam portion 132a, it protrudes outwards to the side opposite to the first frame portion 131, and this protruding part constitutes the first gripping portion 133.

[0071] Furthermore, an opening 134 is formed on the inner side of the first frame portion 131, an opening 135 is formed between the right beam portion 131c and the right semi-circular beam portion 132c, and an opening 136 is formed between the left beam portion 131d and the left semi-circular beam portion 132d. By forming these openings 134 to 136, interference between the bent portion 121b and the frame 13 is suppressed.

[0072] [Structure of Support Body 20]

[0073] As shown in FIG10, the support body 20 is a component that is connected to one end of the handle portion 2 and supports the blade body portion 10 and the cover portion 30. The shape of the support body 20 when viewed from the surface side is formed into a generally elliptical shape, with the major axis direction arranged along the Y-axis direction and the minor axis direction arranged along the X-axis direction. Moreover, it is connected to the handle portion 2 at the center position of the lower side of the elliptical shape. Specifically, as shown in Figures 6 and 7, the support body 20 includes a back panel 21, a housing 22, a magnet 23, a magnet bracket 24, a spring 25, and a screw 26. Furthermore, the support body 20 is one of the components constituting the blade of the razor S. The back panel 21, housing 22, and other parts of the support body 20 that are exposed to the outside are made of metal, and the exposed surfaces are mirror-like.

[0074] The back panel 21 constitutes the back side of the razor head 1. As shown in Figure 11A, the back panel 21, as described on page 5 / 16 of the specification (CN 121843797 A), has a generally elliptical shape when viewed from the surface side. The back panel 21 has an outer peripheral wall 211 along the outer edge of the elliptical shape, and an elliptical recess 212 is formed on the inner side of this outer peripheral wall 211, recessed from the surface side toward the back side. A portion of the housing 22 is disposed in this recess 212.

[0075] At the center of the upper side of the back panel 21, a portion of the outer peripheral wall 211 is cut off to form a groove 213. This groove 213 is formed at a position corresponding to the first gripping portion 133 of the frame 13 described above and the second gripping portion 31a of the cover portion 30 described later, and is set to the size by which the first gripping portion 133 and the second gripping portion 31a protrude from the groove 213 when the razor head 1 is viewed from the rear side as shown in FIG. 5.

[0076] In addition, a portion of the outer peripheral wall 211 is cut off at the center of the lower side of the back panel 21 to form a semi-circular connecting recess 214. The support body 20 and the handle 2 are connected by the front end of the handle 2 in the connecting recess 214. It is also possible to set the support body 20 to the handle 2 so that the razor head 1 cannot swing relative to the handle 2 in a fixed head structure, but in this embodiment, it is set to a swing head structure in which the razor head 1 can swing relative to the handle 2. Specifically, as shown in FIG11A and FIG11B, a pair of bearing portions 215 are arranged on the left and right sides of the connecting recess 214. The shaft portion 51, which is installed at the front end of the handle 2 (described later) as shown in FIG6 and FIG7, is embedded in the bearing portion 215, and the razor head 1 can swing relative to the handle 2 around an axis centered on the shaft portion 51. The upper end wall 214a of the connecting recess 214 protrudes from the bottom surface of the recess 212 and is set to a shape corresponding to the shape of the front end of the handle 2.

[0077] On the left and right sides of the connecting recess 214, a pair of cylindrical internal thread portions 216 are provided on the upper side of the bearing portion 215. In addition, on the left and right sides separated by the pair of internal thread portions 216, a seat portion 217 for the magnet 23 is formed. The seat portion 217 is shaped such that its periphery is partially recessed than the bottom surface of the recess 212 and protrudes from the periphery. Furthermore, a through hole 218 is formed between each internal thread portion 216 on the left and right sides and each seat portion 217, penetrating the back surface of the back panel 21.

[0078] On the other hand, the back surface of the back panel 21 constituting the back of the head is shaped such that the outer edge of the elliptical shape becomes rounded in the Z-axis direction which is the thickness direction of the razor head 1.

[0079] The outer shell 22 is a component that is connected to the back panel 21 and together with the back panel 21 forms the outer shape of the support body 20. It is designed to be different from the back panel 21 so as to accommodate the magnet 23, the front end 50 of the handle 2 (described later), etc. inside the support body 20.

[0080] As shown in FIG12A, the blade body 10 is mounted on one surface side of the outer shell 22 as the mounting surface 220. The outer shape of the outer shell 22 viewed from the surface side is also approximately elliptical. The dimensions of the major axis and minor axis of the ellipse are set to correspond to the dimensions of the recess 212 of the back panel 21. At the center of the upper side of the outer shell 22, a portion of the outer edge wall of the outer shell 22 is cut off to form a groove 221. This groove 221 is set to the position and shape corresponding to the groove 213 formed on the back panel 21, and is set to the size from which the first gripping part 133 and the second gripping part 31a protrude from the groove 213 when the razor head 1 is viewed from the back side as shown in FIG5.

[0081] In addition, at the lower center of the outer casing 22, a portion of the outer edge of the outer casing 22 is cut off to form a rectangular connecting recess 222 for the front end portion 50 of the handle portion 2.As shown in FIG12B, on the back side of the outer casing 22, a pair of bearing portions 223 are arranged on the left and right sides of the connecting recess 222 at positions corresponding to the bearing portions 215 of the back panel 21. The shaft portion 51 mounted on the front end portion 50 of the handle portion 2 is also embedded in the bearing portion 223, realizing the above-described swing head structure.

[0082] On the back side of the outer casing 22, above the connecting recess 222, a recess 224 is formed that is recessed from the back side of the outer casing 22 toward the surface side. The recess 224 is configured to correspond to the upper end wall 214a and the internal thread portion 216 of the connecting recess 214 in the back panel 21, and a pair of through holes 224a are formed at positions corresponding to the internal thread portion 216. Moreover, the through holes 224a reach the mounting surface 220, and as shown in FIG12A, countersunk holes 225 are formed around the through holes 224a in the mounting surface 220. Furthermore, as shown in FIG12B, a cylindrical protrusion spring mounting part 226 is formed on the upper side of the connecting recess 222 in the bottom surface of the recess 224, and the spring 25 is embedded in the spring mounting part 226.

[0083] In addition, a pair of storage parts 227 for storing magnets 23 and magnet supports 24 are formed on the left and right sides of the outer casing 22, separated by a pair of through holes 224a. By arranging magnets 23 and the like in the storage parts 227, the blade part 10 and the cover part 30 are magnetically attracted to the support body 20.

[0084] Each storage part 227 is recessed into a generally rectangular shape. The wall thickness of the outer casing 22 varies at the locations where each storage part 227 is formed. Specifically, when viewed from the Z-axis direction, the portion 22a of each storage portion 227 located inside the outer shell 22 and overlapping the mounting surface 220 has a thicker wall than the portion 22b located outside the mounting surface 220. In this embodiment, portion 22a retains the material of the outer shell 22, while portion 22b is in a state without the material of the outer shell 22, but it is also possible to retain material in portion 22b.

[0085] One surface side of portion 22a forms part of the mounting surface 220 and becomes the position for the blade body portion 10, specifically the frame 13, to be magnetically attracted or magnetically attached. Portion 22b becomes the position for the cover portion 30 to be magnetically attracted. At portion 22a, the wall thickness of the outer shell 22 is thicker than that at portion 22b. As a result, the distance between the portion of the blade body portion 10 that is magnetically attracted or magnetically attached to the magnet 23 and the magnet 23 is longer than the distance between the portion of the cover portion 30 that is magnetically attracted to the magnet 23 and the magnet 23. Therefore, the magnetic attraction between magnet 23 and cover 30 is stronger than the magnetic attraction between magnet 23 and blade body 10.

[0086] Furthermore, a through hole 228 is formed between each through hole 224a on the left and right sides and each storage part 227 to penetrate the back surface of the outer shell 22.The through hole 228 is positioned and shaped to correspond to the through hole 218 formed on the back panel 21, and is connected to the through hole 218 to make the inside and outside of the razor head 1 interconnected. Therefore, when washing the razor head 1, dirt and water on the inside of the razor head 1 are discharged through the through holes 218 and 228.

[0087] In addition, on the surface side of the outer casing 22, at the four corners of the mounting surface 220 and at a position on the outer side in the X-axis direction of the storage portion 227, a retaining piece 229 protruding from the mounting surface 220 is formed. In the retaining piece 229, the inner wall surface 229a that contacts the mounting surface 220 is an arc-shaped curved surface, which can be used to position the frame 13.

[0088] The magnet 23 is made of a permanent magnet, and as shown in FIG6 and FIG7, it is a cuboid shape and is set to the size corresponding to the storage portion 227. The material of magnet 23 is arbitrary. If an alloy magnet or the like is used, magnet 23 can also be made of metal. Here, magnet 23 is also made of metal.

[0089] Magnet support 24 is provided as needed and is configured to surround magnet 23. As shown in Figures 6 and 7, it is U-shaped when viewed from the X-axis direction. By storing magnet 23 in storage part 227 in a state surrounded by magnet support 24, the swaying of magnet 23 relative to housing 22 is suppressed.

[0090] Spring 25 is a compression coil spring and is installed in spring mounting part 226. Spring 25 is disposed between the bottom surface of recess 224 in housing 22 and front end part 50 of handle 2, and applies force to front end part 50 of handle 2 through compression reaction force. Thus, when viewed from the right side of razor S, force is applied to handle 2 in a clockwise direction centered on shaft 51 relative to razor head 1. The initial position is defined as the position where the bottom 50c of the connecting recess 222 located in the front end 50 of the handle 2 abuts against the bottom surface of the connecting recess 222, described later. When no load is applied to the razor head 1, the handle 2 is in the initial position due to the compressive reaction force of the spring 25. Furthermore, when a load is applied to the razor head 1 during shaving, and a clockwise torque is applied to the razor head 1 centered on the shaft 51 when viewed from the right side of the razor S, the razor head 1 overcomes the compressive reaction force of the spring 25 and swings.

[0091] The screw 26 serves to integrate the outer casing 22 with the back panel 21. By fastening the screw 26 through the through hole 224a and the internal thread 216, the outer casing 22 is fixed to the back panel 21. Since a countersunk hole 225 is formed around the through hole 224a in the mounting surface 220, the head of the screw 26 enters the countersunk hole 225, thus preventing the screw 26 from protruding.

[0092] [Structure of cover 30] Specification 7 / 16 pages 9 CN 121843797 A

[0093] As shown in FIG1, the cover 30 is a component that exposes the tip 11a of the blade body 11 at the central position while covering the outer edge of the blade body 10.The razor head 1 is formed by mounting the cover 30 to the support 20 such that the cover 30 surrounds the outer edge of the blade body 10 and the outer edge of the outer shell 22. Furthermore, the cover 30 is one of the components constituting the blade of the razor S, is made of metal, and has a mirror-like surface exposed to the outside.

[0094] As shown in FIG2, the shape of the cover 30 viewed from the surface side is approximately elliptical. The wall surface constituting the surface of the cover 30 is designated as the cover surface 30a, and the surface of the cover surface 30a constitutes the head surface. As shown in FIG13A, the cover 30 has an outer peripheral wall 31 along the elliptical outer edge, and as shown in FIG13B, a recess 32 is formed on the inner side of the outer peripheral wall 31, recessed into an elliptical shape from the back side towards the surface side. The back side of the cover surface 30a constitutes the bottom surface of the recess 32, and the outer peripheral wall 31 constitutes the inner wall surface of the recess 32. The blade body 10, a part of the outer shell 22, etc., are disposed in this recess 32. The shape of the recess 32 corresponds to the shape of the blade body 10 and the outer shell 22. Therefore, the cover 30 can be mounted on the support 20 without wobbling. In addition, when the cover 30 is mounted on the support 20, the blade body 10 is clamped by the back side of the cover surface 30a in the cover 30 and the support 20. Furthermore, when the cover 30 is mounted on the support 20, a portion of the bottom surface of the recess 32 abuts against both ends of the blade body 11, thereby applying a load that pushes the blade body 10 toward the outer shell 22. Therefore, when the cover 30 is mounted on the support 20, the wobbling of the blade body 10 is also suppressed by the elastic force of the leaf spring 124 and the deflection of each part of the blade body 10.

[0095] In addition, seat portions 32a are provided at both ends in the Y-axis direction within the recess 32. The accessory 33 shown in FIG6 and FIG7 is fixed to the seat portion 32a. The accessory 33 is a part that is magnetically attached to the magnet 23. When the cover 30 is installed on the support 20, the accessory 33 is magnetically attracted to the magnet 23 at part 22b in the housing 22. When the cover 30 is made of magnetic metal, the seat 32a can be directly magnetically attracted to the magnet 23 even without the accessory 33. However, if the accessory 33 is installed, the seat 32a is magnetically attracted to the magnet 23 via the accessory 33, so that the cover 30 may not be made of magnetic metal.

[0096] The seat 32a is constructed by partially protruding the bottom surface of the recess 32, and one accessory 33 is arranged to cover each seat 32a. Each accessory 33 is a V-shaped component cut along the YZ plane, and is configured to have an inner wall surface 33a along the XZ plane and an adsorption surface 33b along the XY plane and disposed at the front end of the seat 32a. Furthermore, when the cover 30 is installed on the support 20, it is magnetically attracted to the magnet 23 via the adsorption surface 33b, thus integrating the cover 30 with the support 20. In the Y-axis direction, the spacing between the two accessories 33 is consistent with the dimensions of the mounting surface 220 and the frame 13. When the cover 30 is installed on the support 20, the mounting surface 220 and the blade body 10 are arranged between the two accessories 33.

[0097] The surface side of the cover 30a is the part that becomes the skin contact surface 34. This skin contact surface 34 comes into contact with the user's skin when the razor S is shaving. A generally rectangular window 35 is formed on the skin contact surface 34, extending from the surface side of the cover 30 to the back side and with the Y-axis as its length direction. The blade 11 is exposed from the cover 30 through this window 35. In addition, recesses 34a are formed on both sides of the skin contact surface 34 in the vertical direction, which are separated from the window 35, to make the skin contact surface 34 concave. The two sides of the skin contact surface 34 in the horizontal direction, separated from the window 35 and the recesses 34a, are semi-circular flat surfaces 34b. By forming the recesses 34a, the tip 11a of the blade 11 protrudes from the bottom of the recess 34a to the surface side, which enables deep shaving. In addition, the two ends of the blade 11 are covered by the flat surfaces 34b to prevent the two ends of the blade 11 from snagging on the user's skin during shaving.

[0098] Furthermore, the bottom surface of the recess 34a of the skin contact surface 34, which is located above the window portion 35 (i.e., behind in the shaving direction), is a flat surface. The lower surface 34d, located below the window portion 35 (i.e., in the shaving direction), is constructed with a plurality of slots 34e extending along the X-axis arranged in the Y-axis direction. Therefore, for the lower surface 34d, corresponding to the formation of slots 34e, the contact area with the skin is reduced, inhibiting skin adhesion, and shaving cream and moisture can enter the slots 34e, enabling a smoother shave. Additionally, the upper surface 34c, being a flat surface, provides a smooth skin feel.

[0099] As described above, the shape of the cover portion 30 viewed from the surface side is generally elliptical, but the outer edge of the elliptical shape becomes rounded in the Z-axis direction of the thickness direction, which is the thickness direction of the razor head 1 (page 8 / 16 of the specification, CN 121843797 A). More specifically, at a position on the surface side of the cover portion 30 that is further outward than the flat surface 34b and further outward than the recess 34a, the outer edge of the cover portion 30 is rounded in the thickness direction.

[0100] Furthermore, as shown in Figures 13A and 13B, at the center of the outer peripheral wall 31 on the upper side of the cover portion 30, the outer peripheral wall 31 protrudes upward, and the protruding portion constitutes the second gripping portion 31a. As shown in Figure 13B, at the second gripping portion 31a, the inner wall surface of the outer peripheral wall 31, that is, the wall surface on the side of the recess 32, also curves upward, and the space inside the recess 32 is expanded, in which the first gripping portion 133 of the blade body portion 10 is housed. In addition, the second gripping part 31a protrudes to the rear side compared to other parts of the cover part 30. This part enters the groove 221 of the outer shell 22 and the 213 of the back panel 21.

[0101] In addition, a portion of the outer peripheral wall 31 is cut off at the lower center position of the cover part 30 to form a semi-circular connecting recess 31b.The front end portion 50 of the handle 2 is arranged together with the other connecting recesses 214, 222, etc. in the connecting recess 31b to connect the support body 20 and the handle 2.

[0102] [Structure of the handle 2]

[0103] The handle 2 is the part that the user holds when using the razor S. The handle 2 is one of the parts that constitute the blade of the razor S. It is made of metal and the exposed surface is mirror-finished. Specifically, the handle 2 is a rod-shaped member with one direction as its length, having a grip portion 40, a front end portion 50 located on the upper end side of the grip portion 40, and a rear end portion 60 located on the lower end side of the grip portion 40.

[0104] The grip portion 40 is a rod-shaped part located between the front end portion 50 and the rear end portion 60. The cross-sectional shape of the handle 2 with the length direction as its normal direction is a shape in which the corners of a rectangle containing a square are rounded. The central axis along the length of the grip portion 40 is tilted at a predetermined angle relative to the back of the razor head 1, which is parallel to the XY plane. This angle varies depending on the amount of swishing when the razor head 1 is swung. The grip portion 40 can be any shape; besides a straight rod-shaped member, it can be a shape where the middle part of the length direction is bulging, curved, or has a recess or opening at the middle part of the length direction. However, if the grip portion 40 is constructed from a straight rod-shaped member with a circular, elliptical, or polygonal cross-section with rounded corners in one direction as the normal direction, it can achieve a simpler and sharper design, making it easier to grip during use.

[0105] The grip portion 40 is a tapered shape with a gradually decreasing cross-sectional area from the rear end 60 towards the front end 50. Therefore, it can be a shape where the grip portion 40 is thinner at the connection point to the razor head 1 and thicker at the rear end 60. Therefore, it can achieve a simple design while also being easier to grip during use. Furthermore, since the center of gravity of the handle 2 can be positioned on the rear end 60 side, the center of gravity of the entire razor S can be moved from the front end 50 where the razor head 1 is mounted to the rear end 60 side, enabling stable shaving.

[0106] In addition, the grip 40 is a solid metal filled inside. Therefore, the razor S can be made heavy, giving it a more substantial feel and improving the rigidity of the product. Furthermore, when the user uses the razor S, stable shaving can be achieved compared to a lighter case, and load can be easily applied during shaving, thus enabling deeper shaving.

[0107] The front end 50 is the part located on one side of the handle 2 along its length and connected to the support 20 in the razor head 1. As shown in Figures 3 to 5, the outer wall surface 50a on the grip 40 side of the front end 50 is continuous with respect to the outer wall surface 401 of the grip 40 without any joint.Furthermore, in the portion of the front end 50 that connects to the support body 20, the outer wall surface 50a is a curved surface whose radial dimension gradually increases from the central axis of the handle 2 along the length direction of the handle 40 as it gets closer to the connection position with the support body 20. Moreover, the portions of the outer wall surface 50a that connect to the back and lower surfaces of the support body 20 are seamless. Therefore, the connection portion of the handle 2 to the razor head 1 can be rounded. In addition, by making the connection portion, which is prone to dirt accumulation, a curved surface can be made to suppress dirt accumulation and make it easier to keep clean. Specification 9 / 16 pages 11 CN 121843797 A

[0108] As shown in Figures 14A and 14B, the portion of the front end 50 disposed inside the support body 20 has a structure with a back 50b and a bottom 50c. The back 50b is a semi-circular shape corresponding to the connection recess 214 of the back panel 21. The bottom 50c has a quadrilateral shape corresponding to the connecting recess 222 of the outer shell 22 and the connecting recess 31b of the cover 30. The bottom 50c is disposed protruding from one side 50d of the outer shell 22 side in the back 50b. When the front end 50 is connected to the support body 20, the back 50b is inserted into the connecting recess 214, and the bottom 50c is inserted into the connecting recesses 222 and 31b.

[0109] A cylindrical through hole 50e extending in the Y-axis direction is formed in the front end 50. The outer shell 22 and the back panel 21 are assembled such that the shaft 51 passes through the through hole 50e and is supported by the bearing portion 215 of the back panel 21 and the bearing portion 223 of the outer shell 22, thereby connecting the front end 50 to the support body 20.

[0110] In addition, a spring hole 50f for inserting one end of the spring 25 is formed on one side 50d of the back 50b. When the front end 50 is connected to the support body 20, one end of the spring 25 of the spring mounting part 226 installed on the housing 22 is inserted into the spring hole 50f. By the compression reaction force of the spring 25, a force is applied in the direction away from the housing 22 on the back end 50b, that is, in the direction that returns the razor head 1 to its initial position.

[0111] The rear end 60 is the part located on the other side of the length direction of the handle 2. The rear end 60 is a spherical surface whose cross-sectional area gradually decreases as it moves away from the front end 50. Therefore, the rear end 60 also has a rounded shape.

[0112] With the above structure, the razor S is constructed. As shown in FIG1, the razor S constructed in this way is used with the blade body 10 and the support body 20 covered by the cover part 30. Furthermore, when replacing the blade body 10, the user first grasps the second grasping part 31a with their fingers to remove the cover 30 from the support body 20, exposing the blade body 10 to its outer edge. Then, the user grasps the first grasping part 133 to remove the blade body 10. Thus, the blade body 10 can be easily and safely removed from the support body 20.Next, with only the support body 20 and the handle 2 as shown in Figure 10, the blade body 10 is placed on the mounting surface 220 of the support body 20, and then the cover 30 is installed on the support body 20. Thus, the replacement of the blade body 10 is completed. At this time, when the blade body 10 is brought into contact with the mounting surface 220, the frame 13 is magnetically attracted or attracted by the mounting surface 220 based on the magnetic force of the magnet 23, and the blade body 10 is positioned by the retaining plate 229. Furthermore, when the cover 30 is installed on the support body 20, the accessory 33 is magnetically attracted by the magnet bracket 24 based on the magnetic force of the magnet 23. Moreover, the inner wall surface of the outer peripheral wall 31 abuts against the outer edge of the mounting surface 220, in other words, against the outer edge of the outer casing 22, thereby ensuring that the cover 30 is installed on the support body 20 without wobbling. When the cover 30 is mounted on the support 20, the tip 11a of the blade 11 in the blade body 10 is forced towards the inner surface of the cover 30 by the force of the leaf spring 124, thereby suppressing wobbling.

[0113] When the blade body 10 is mounted on the support 20, the frame 13 can be directly magnetically attached to the mounting surface 220, but here, as shown in FIG15, the leaf spring 124 contacts the mounting surface 220, causing the frame 13 to move away from the mounting surface 220. When the razor S is used, the blade body 10 flexes in the Z-axis direction due to the elasticity of the leaf spring 124, thereby displacing the blade body 10 towards the inside of the razor head 1 when a strong force is applied to the blade body 11 in contact with the skin, thus easing the contact between the blade body 11 and the skin. It is preferable to set the frame 13 away from the mounting surface 220 so that the leaf spring 124 can move when such an action is performed. However, with this configuration, the frame 13 is not directly magnetically attached to the mounting surface 220, but is magnetically attracted at a position away from the mounting surface 220. In this case, the magnetic attraction may be smaller than the magnetic attraction in the former case, but since the blade part 10 can obtain a magnetic attraction to the extent that it will not fall off the support body 20, the blade part 10 can be mounted on the support body 20 without problems. In addition, although the blade part 10 becomes less likely to displace towards the inside of the razor head 1 when a strong force is applied to the blade body 11, it is also possible to configure the frame 13 to be directly magnetically attached to the mounting surface 220.

[0114] Furthermore, even when the frame 13 is away from the mounting surface 220, since the leaf spring part 124 is in contact with the mounting surface 220, in this case it is also expressed in this specification as the blade part 10 being magnetically attached to the mounting surface 220.

[0115] [Function and Effect of Razor S]

[0116] Next, the effect of the razor S configured in this way will be explained. Specification 10 / 16 pages 12 CN 121843797 A

[0117] (1) In the razor S of this embodiment, the blade part 10 on which the blade body 11 is provided is placed on the mounting surface 220 of the support body 20 by magnetic adsorption, and the cover part 30 is also magnetically adsorbed and installed on the support body 20.Furthermore, while the blade body 10 is held between the cover 30 and the support 20, the blade body 10 can be replaced when the cover 30 is removed from the support 20.

[0118] Thus, since the blade body 10 is magnetically attached to the support 20, the blade body 10 is also magnetically attached to the support 20 when the cover 30 is removed, and can be easily removed from the support 20 by overcoming the magnetic attraction force. In addition, the blade body 10 is magnetically attached to the support 20 simply by bringing the support 20 close to the new blade body 10, making it easy to replace the blade body 10. Therefore, only the blade body 10 can be replaced. Moreover, if only the blade body 10 is replaced, the number of replacement parts can be minimized. Furthermore, by magnetically attaching the cover 30 to the support 20, the blade body 10 can be held between the cover 30 and the support 20, enabling stable shaving.

[0119] In addition, the number of times the blade body 10 and the blade tip 11a are touched can be reduced, and the blade body 10 can be installed and removed without touching it. Therefore, the user can be less likely to be injured by touching the blade tip 11a or feel anxious about whether he will be injured by touching the blade body 10, and the user can easily replace the blade body 10.

[0120] Furthermore, since only the blade body 10 can be replaced, the replacement can be done with the minimum required, and waste is reduced, which is in line with SDG 12 "Responsible production and consumption" target 12.5 "By 2030, the generation of waste will be significantly reduced through the prevention, reduction, recycling and reuse of waste."

[0121] (2) It is equipped with a magnet 23 that magnetically attracts the blade body 10 and the cover 30 to the support body 20, and the magnetic attraction force between the magnet 23 and the cover 30 is stronger than the magnetic attraction force between the magnet 23 and the blade body 10. Thus, the cover 30 is integrated with the support 20 by a relatively strong magnetic attraction, preventing it from detaching from the support 20 during shaving. Furthermore, the blade body 10 is integrated with the support 20 by a relatively weak magnetic attraction, allowing it to be easily detached from the support 20 during replacement.

[0122] In use, the blade body 10 is held between the cover 30 and the support 20. If the cover 30 does not detach, the blade body 10 will not detach either. Since the cover 30 is attracted by a relatively strong magnetic attraction and the blade body 10 is not easily detached, the razor S can be used safely. On the other hand, after removing the cover 30, the blade body 10 is easily removed by being attracted to the support 20 by a relatively weak magnetic attraction, allowing the user to easily remove the blade body 10.

[0123] In this embodiment, the strength of the magnetic attraction force is set by making the distance between the part of the blade body 10 that is magnetically attracted or attracted by the magnet 23 and the magnet 23 longer than the distance between the part of the cover 30 that is magnetically attracted by the magnet 23 and the magnet 23.In this way, the magnetic attraction force can be made strong or weak simply by making the distance between the magnet 23 and the cover 30 and the distance between the magnet 23 and the blade body 10 different, so that the razor head 1 can be made to have a simple structure.

[0124] (3) The cover 30 is provided with a cover surface 30a that clamps the blade body 10 together with the support body 20 and an outer peripheral wall 31 disposed on its outer edge. Moreover, the outer peripheral wall 31 surrounds the outer edge of the blade body 10 and abuts against the outer edge of the outer shell 22.

[0125] In this way, while the blade body 10 is clamped by the cover surface 30a and the support body 20, the outer peripheral wall 31 surrounds the outer edge of the blade body 10, thereby positioning and holding the blade body 10. In addition, by providing a structure in which the outer peripheral wall 31 of the cover 30 abuts against the outer edge of the outer shell 22, the cover 30 can be positioned and held relative to the support body 20. Therefore, the shaking of the blade body 10 and the cover 30 can be suppressed, and a more stable shaving can be achieved.

[0126] (4) The blade body 10 is provided with a frame 13, which supports the blade body 11 by being disposed between the blade body 11 and the support body 20, and the frame 13 is magnetically attracted or magnetically attracted by the magnet 23. In addition, a first gripping part 133 protruding from the support body 20 is provided on the frame 13 in the part of the razor head 1 opposite to the part where the support body 20 is connected to the handle 2.

[0127] Therefore, the blade body 10 can be magnetically attracted to the support body 20 by magnetically attracting or magnetically attracting the frame 13 by the magnet 23. Moreover, since the first gripping part 133 is provided on the frame 13, the user can easily remove the blade body 10 from the support body 20 by gripping the first gripping part 133. Furthermore, since the first gripping part 133 is configured on the opposite side of the part connecting the support body 20 and the handle 2 in the razor head 1, the first gripping part 133 can be configured in the opposite direction to the direction in which the tip 11a of the blade body 11 faces. Therefore, when the blade body 10 is removed from the support body 20, even if the user touches the blade body 11, it will be in the opposite direction of the cutting direction, thus protecting the user from injury. Moreover, it can reduce the possibility of injury or the psychological anxiety of whether the user will be injured by touching the blade body 10, and make it easier for the user to replace the blade body 10.

[0128] In addition, since the first gripping part 133 is provided, the shape of the blade body 10 is asymmetrical in the direction in which the multiple blades 11 are arranged, that is, in the vertical direction, so it is easy to determine the orientation when the blade body 10 is installed on the support body 20.

[0129] (5) On the outer peripheral wall 31 of the cover 30, on the opposite side of the part where the support 20 in the razor head 1 connects with the handle 2, a second gripping part 31a is provided that protrudes from the support 20 and covers the first gripping part 133.

[0130] Thus, by providing the second gripping part 31a to cover the first gripping part 133, the second gripping part 31a can be gripped separately from the first gripping part 133, allowing for separate removal of the cover part 30 and the blade part 10. Furthermore, if the second gripping part 31a is positioned opposite to the portion of the razor head 1 where the support 20 connects to the handle 2, it can be positioned in the opposite direction to the direction in which the blade tip 11a of the blade 11 faces. Therefore, when removing the cover part 30 from the support 20, even if the user touches the blade 11, it will be in the opposite direction to the cutting direction, thus protecting the user from injury.

[0131] Additionally, by providing the second gripping part 31a, the shape of the cover part 30 is asymmetrical in the vertical direction, making it easy to determine the orientation when installing the cover part 30.

[0132] (6) The razor S is designed with an all-metal blade, at least the exposed portion of which is entirely made of metal. By providing such an all-metal blade, the razor S can be made to have a substantial feel. In addition, in a razor S with a structure in which the blade 11 is exposed from the cover 30, the all-metal blade can create a unified structure, which is simple and aesthetically pleasing in design, and can be made into a high-end product. Furthermore, since the razor S can be made entirely of metal, it is possible to easily dispose of each part while also considering the environment.

[0133] In addition, for example, the blade part 10 can be replaced when the blade 11 becomes dull, but the other parts (handle 2, cover 30, support 20) can be used for a long time without replacement, thereby reducing waste. Therefore, in addition to improving the durability of each part by using metal, it becomes an aesthetically pleasing and high-end product, which allows users to use it for a long time and helps to reduce waste.

[0134] Furthermore, an all-metal blade is achieved by making the razor head 1 and the handle 2 entirely metal, but the type of metal is arbitrary. However, the fittings 33 of the cover 30 and the frame 13 in the blade body 10, that is, the part that is magnetically attracted or attracted by the magnet 23, are made of magnetic metal.

[0135] (7) The exposed surfaces of the components constituting the blade of the razor S, that is, the support 20, the cover 30 and the handle 2, are mirror-like. In this way, by making the exposed surfaces mirror-like, the razor S can have a bright and shiny appearance with a metallic surface, and can be a structure that is easy to clean and easy to keep clean. In addition, the razor S can have a smooth and comfortable feel, and can also provide a smooth and fluid feel when shaving with the blade 11, at the part of the mirror in the cover 30 that comes into contact with the skin.

[0136] (8) The cross-sectional shape of the handle 2 with the length direction as the normal direction is circular, elliptical or a shape with the corners of a polygon rounded.By designing the handle 2 in this shape, a simpler design is achieved, and it becomes a shape that is easy to hold during use. Instruction manual 12 / 16 pages 14 CN 121843797 A

[0137] Furthermore, the handle 2 is designed as a tapered shape with a gradually decreasing cross-sectional area from the rear end 60 side opposite to the front end 50 side toward the front end 50 side. In this way, by designing the handle 2 as tapered, it is possible to have a shape that is thin at the connection with the razor head 1 and thick at the root of the rear end 60. Therefore, the handle 2 can be designed as a simple design and also become a shape that is easier to hold during use. In addition, the center of gravity of the handle 2 can be made on the rear end 60 side, so the center of gravity of the entire razor S can be moved from the front end 50 where the razor head 1 is mounted to the rear end 60 side, and a more stable shaving can be achieved.

[0138] (9) By making the handle 2 a solid metal filled inside, the razor S can have a heavier feel and the rigidity of the product can be improved. Furthermore, when used by the user, it can achieve a stable shave compared to a lighter razor, and it is easy to apply load, thus enabling a deeper shave.

[0139] (10) For the razor head 1, the shape viewed from the Z-axis direction is set to an elliptical shape, and the outer edge of the elliptical shape is rounded in the thickness direction on both the head surface and the back of the head. In addition, for the handle 2, the cross-sectional shape with the length direction as the normal direction is set to a circle, an ellipse, or a shape with rounded corners of a polygon.

[0140] By setting such a structure, the razor S can be made into a rounded shape. Thus, the razor S can be made into a simple and beautiful design, and although it is a knife, it can also be made into a shape that brings peace of mind. In addition, there is no roughness, and the razor S can be made into a shape that is comfortable to touch. Furthermore, by setting it into a rounded shape, dirt does not easily accumulate, and the razor S can be made into a shape that is easy to keep clean.

[0141] Furthermore, in the portion of the front end 50 of the handle 2 that connects to the support body 20, the outer wall surface 50a of the front end 50 is a curved surface whose radial dimension gradually increases from the central axis of the handle 2 as it gets closer to the connection position with the support body 20.

[0142] In this way, by making not only the razor head 1 and the handle 2 curved surfaces, but also the portion where they connect, a more rounded shape can be achieved. In addition, by making the portion where dirt easily accumulates, such as the connection portion, a curved surface, dirt is less likely to accumulate, and the razor S can be made to have a shape that is easier to keep clean.

[0143] (Second Embodiment)

[0144] The second embodiment will be described. Compared with the first embodiment, this embodiment is an embodiment in which the razor S is equipped with a support for storage and becomes a razor with a support. Otherwise, it is the same as the first embodiment, so only the parts that are different from the first embodiment will be described.

[0145] As shown in Figures 16A and 16B, the bracket 500 is a bottomed cylindrical shape with a side surface 501 and a bottom surface 502. The razor S is housed by inserting the handle 2 from the rear end 60 side into the hollow portion 503 formed by the side surface 501 and the bottom surface 502. Specifically, the bracket 500 is truncated cone-shaped, and the hollow portion 503 is formed by opening on the upper surface side of the truncated cone shape.

[0146] On the surface side and the back side of the bracket 500, that is, on the front side and the opposite side of the paper of Figure 16A across the central axis of the truncated cone-shaped bracket 500, a slit 504 is provided that forms from the upper surface of the bracket 500 along the central axis direction. The width of the slit 504 is set to be constant, but it gradually widens as it approaches the upper surface side, making the upper end surfaces of the bracket 500 on both sides of the slit 504 rounded. Furthermore, on the surface side of the bracket 500, the slit 504 is formed to extend from the upper surface to the lower surface. On the lower surface side, the slit 504 gradually widens as it approaches the lower surface, making the lower end faces of the bracket 500 on both sides of the slit 504 rounded. Also, on the back side of the bracket 500, the lower front end of the slit 504 is rounded into a semi-circle. Thus, by forming the slit 504 and rounding the upper and lower end faces of the bracket 500 on both sides of the slit 504, the aesthetic design is improved, achieving a rounded shape similar to the body of the razor S. Additionally, by providing the slit 504 along the central axis on the surface side of the bracket 500, the insertion direction when inserting the handle 2 into the hollow portion 503 can be indicated, and the entrance to the hollow portion 503 can be easily seen, allowing the user to easily store the razor S in the bracket 500.

[0147] Furthermore, on the back side of the bracket 500, a portion of the side surface 501 is provided as a flat surface 505 along the insertion direction of the handle 2, and a retaining magnet 506 is mounted on the flat surface 505. Through this retaining magnet 506, the bracket 500 is magnetically attracted to a magnetic member, thus allowing the bracket 500 to be mounted on a magnetic member, such as a wall in a washroom.

[0148] At the center of the flat surface 505, a slit 507 is formed from the lower surface of the bracket 500 along the central axis. The slit 507 gradually widens as it approaches the lower surface of the bracket 500, and the upper lower front end becomes rounded into a semi-circular shape. The slits 504 on the surface side and 507 on the back side of the bracket 500 are connected to the hollow portion 503. Therefore, even if the razor S is stored in the bracket 500 in a wet state after use, it can drain water through the slits 504 and 507.

[0149] Moreover, the exposed surfaces of the bracket 500 with such a structure, such as the side 501 including the opening end of the hollow portion 503 and the portion inside the slits 504, are mirror-like.

[0150] As explained above, in this embodiment, a bracket 500 is provided to house the main body of the razor S. Therefore, the razor S can be easily stored simply by inserting it into the bracket 500. Furthermore, the bracket 500 can be installed simply by magnetically attaching the retaining magnet 506 to a wall or other surface made of a magnetic component, ensuring a secure storage location for the razor S. Therefore, it is not necessary to secure a storage location on a sink or similar surface. Additionally, since the bracket 500 is attached to a magnetic component by the magnetic attraction of the retaining magnet 506, it can be easily disassembled and moved. Moreover, unlike structures such as suction cups where the attraction force may gradually decrease, it can be installed for a long period. In particular, since the razor S is constructed with a heavy, all-metal blade, it is important to prevent the bracket 500 from falling off due to a decrease in attraction force; preventing this ensures safety and peace of mind.

[0151] Furthermore, by making the exposed external surfaces of the bracket 500 mirror-like, the bracket 500 can have a bright and glossy appearance with a metallic surface, and can also be a structure that is easy to clean and maintain. In addition, it can also provide a good tactile feel. Furthermore, when the exposed external surfaces of the support body 20, the cover 30, and the handle 2 are also mirror-like, it can have a sense of unity with the main body of the razor S, and can further improve the design.

[0152] (Third Embodiment)

[0153] The third embodiment will be described. In this embodiment, a preferred replacement razor storage container that houses the razor body 10 will be described relative to the razor S described in the first and second embodiments. In addition, the razor S is the same as in the first and second embodiments.

[0154] As shown in Figures 17A and 17B, the razor body 10 is stored in the replacement razor storage container 600. The replacement razor storage container 600 is composed of a container main body 610 and a cover 620.

[0155] The container body 610 is configured to have a recess 611 that forms a storage space for housing the blade body 10 and a flange 612 provided on the opening side of the recess 611. The recess 611 is configured to a depth such that the blade body 10 does not protrude from the opening and that the mounting surface 220 of the support 20 in the razor head 1 contacts the blade body 10 when the support 20 is brought close. The blade body 10 is housed in the recess 611 such that the blade body 11 side faces the bottom surface side which is the lower side of the recess 611 and the frame 13 side faces the opening side of the recess 611 which is the upper side. The flange 612 is a planar structure that protrudes outward from the opening of the recess 611.

[0156] The cover 620 covers the blade body 10 housed in the recess 611 by being mounted on the planar flange 612, while sealing the storage space of the blade body 10.The cover 620 is made of a sheet-like material that is pasted onto the flange 612 as shown in the figure, or a resin cover with protrusions embedded in the recess 611, and can be easily removed from the flange 612. Furthermore, the figure shows the case where the cover 620 is made of a sheet-like structure.

[0157] The blade part 10 can be replaced using the blade body 10 housed in such a replacement blade storage container 600. When replacing the blade body 10, the cover 620 is removed from the flange 612 so that the blade body 10 is exposed so that the frame 13 side can be seen from the opening side of the recess 611. Then, when the support 20 is brought close to the blade body 10 in this state, the frame 13 is magnetically attracted by the magnet 23, and the blade body 10 is mounted on the mounting surface 220.

[0158] Subsequently, when the cover 30 is installed on the support 20 on which the blade part 10 is installed, the cover 30 is magnetically attracted by the magnet 23 and installed on the support 20. Thus, the blade part 10 is clamped between the cover 30 and the support 20 without wobbling, forming the razor head 1, and the replacement of the blade part 10 is completed.

[0159] In this way, a replacement razor storage container 600 can be provided in which the frame 13 side faces upward in the recess 611 of the container body 610 to store the blade part 10. If such a replacement razor storage container 600 is provided, the blade part 10 can be removed simply by removing the cover 620. Furthermore, the blade part 10 can be installed on the support body 20 by magnetically attracting the blade part 10 with the magnet 23 provided on the support body 20 simply by placing the blade part 10 in the recess 611 of the container body 610. Therefore, the user can easily and safely replace the replacement blade without touching it.

[0160] Moreover, since only the blade part 10 can be replaced, the unit price of each replacement blade can be reduced compared to replacing the entire razor head with a replacement blade that integrates the blade part and the resin component. Therefore, the number of products for the same cost can be increased. Therefore, the replacement frequency of the replacement blade can be increased, and newer blades can be used for shaving, thereby increasing user satisfaction.

[0161] In addition, as shown in FIG18, the replacement blade storage container 600 can also be configured such that multiple container body parts 610 are arranged in an integrated manner and connected by flanges 612. In this case, it is also possible to disconnect between adjacent container body portions 610 by providing a thin-walled weak portion or a point break line at the connection point of the flange portion 612.

[0162] Thus, if the structure is configured such that multiple container body portions 610 are connected by the flange portion 612, it can be disconnected at the connection point, and can be used one by one like daily disposable contact lenses. As a result, it is possible to carry the required number of replacement blades when traveling or on business trips. In addition, the container body portion 610 after the replacement blade is removed can also be disconnected and disposed of appropriately.

[0163] Furthermore, with such a structure for the replacement knife storage container 600, the replacement knife storage container 600 can be made thinner, and multiple layers can be stacked in the storage box 700, etc., as shown in FIG18, for storage, reducing storage space even when storing a large number of replacement knives.

[0164] (Other Embodiments)

[0165] This disclosure is not limited to the above-described embodiments, and can be appropriately modified within the scope of the claims. In addition, in the above embodiments, the elements constituting the embodiments are not necessarily essential except where they are specifically stated to be necessary or where they are obviously necessary in principle. In addition, in the above embodiments, when the number, value, quantity, range, etc., of the constituent elements of the embodiments are mentioned, the specific quantity is not limited except where it is specifically stated to be necessary or where it is obviously limited to a specific quantity in principle. In addition, in the above embodiments, when the shape, positional relationship, etc., of the constituent elements are mentioned, the shape, positional relationship, etc., are not limited except where it is specifically stated or where it is limited to a specific shape, positional relationship in principle.

[0166] For example, the gripping part 40 can be designed as a tapered shape with a gradually decreasing cross-sectional area from the rear end 60 towards the front end 50, but the cross-sectional area in the length direction can also be set to be constant.

[0167] In addition, one magnet 23 is provided on each of the left and right sides of the support body 20. Moreover, the distance between the part of the blade body 10 that is magnetically attracted or attracted by the magnet 23 and the magnet 23 is different from the distance between the part of the cover 30 that is attracted by the magnet 23 and the magnet 23. As a result, the magnetic attraction force between the magnet 23 and the cover 30 is stronger than the magnetic attraction force between the magnet 23 and the blade body 10. However, this is one example of the magnetic attraction force between the magnet 23 and the cover 30 and the magnetic attraction force between the magnet 23 and the blade body 10 being different, and it can also be achieved by other structures. For example, the part of the magnet 23 that is magnetically attracted to the cover 30 and the part that is magnetically attracted to the frame 13 can also be composed of different parts with different magnetic attraction forces.

[0168] In addition, in the above embodiment, a magnet 23 is provided in the support body 20 and a magnetic metal is provided in the cover 30. However, as shown in CN 121843797 A on pages 15 / 16 of the specification, a magnetic metal may also be provided in the support body 20 and a magnet may be provided in the cover 30. Furthermore, magnets may be provided in the support body 20 and the cover 30 respectively, and the magnets may attract each other. In this case, if, for example, the magnet on the right side of the support body 20 is the S pole and the magnet on the left side is the N pole, and the magnet on the right side of the cover 30 is the N pole and the magnet on the left side is the S pole, then when the cover 30 is to be installed in opposite directions, the cover 30 cannot be installed due to the repulsion of the magnets, and the cover 30 can be prevented from being installed in opposite directions.

[0169] In addition, the upper side 34c of the cover 30 is made flat, and the lower side 34d is constructed with a plurality of slots 34e arranged thereon. However, the upper side 34c can be constructed with a plurality of slots 34e arranged thereon, and the lower side 34d can be made flat.

[0170] In addition, the razor S is made of an all-metal blade, but it can also be made of a blade made of resin or the like. For example, the back panel 21, the outer shell 22, and the cover 30 in the support 20 of the razor head 1 can be made of resin, or the handle 2 can be made of resin. In this case, if transparent resin is used as the resin, the internal structure of the blade part 10 and the like can be visually identified, and the internal mechanical feel can be displayed.

[0171] In addition, the support 500 is made into a frustum shape, but it can be any shape with a bottom cylinder, such as a cylindrical shape, a polygonal cylindrical shape, etc.

[0172] Explanation of reference numerals

[0173] 1 Razor head, 2 Handle, 10 Blade body, 11 Blade body, 11a Blade tip, 12 Blade holder component, 13 Frame, 20 Support body, 21 Back panel, 22 Outer shell, 23 Magnet, 30 Cover, 30a Cover surface, 31 Outer peripheral wall, 31a Second gripping part, 32 Recess, 33 Accessory, 35 Window, 40 Handling part, 50 Front end, 50a Outer wall surface, 60 Rear end, 121 Mounting platform, 122 Foot, 123 Support, 124 Leaf spring, 133 First gripping part, 220 Mounting surface, 500 Bracket, 501 Side side, 502 Bottom surface, 503 Hollow part, 505 Flat surface, 506 Holding magnet, 600 Replacement knife storage container, 610 container body, 611 recess, 612 flange, 620 lid.Instruction manual, page 16 / 16, 18 CN 121843797 A, Figure 1; Instruction manual, Figure 1 / 21, page 19 CN 121843797 A, Figure 2; Instruction manual, Figure 2 / 21, page 20 CN 121843797 A, Figure 3; Instruction manual, Figure 3 / 21, page 21 CN 121843797 A, Figure 4; Instruction manual, Figure 4 / 21, page 22 CN 121843797 A, Figure 5; Instruction manual, Figure 5 / 21, page 23 CN 121843797 A, Figure 6; Instruction manual, Figure 6 / 21, page 24 CN 121843797 A, Figure 7; Instruction manual, Figure 7 / 21, page 25 CN 121843797 A, Figure 8A, Figure 8B; Instruction manual, Figure 8 / 21, page 26 CN 121843797 A, Figure 9A, Figure 9B; Instruction manual, Figure 9 / 21, page 27 CN 121843797 A Figure 9C Instruction Manual Appendix 10 / 21 Page 28 CN 121843797 A Figure 10 Instruction Manual Appendix 11 / 21 Page 29 CN 121843797 A Figure 11A Figure 11B Instruction Manual Appendix 12 / 21 Page 30 CN 121843797 A Figure 12A Instruction Manual Appendix 13 / 21 Page 31 CN 121843797 A Figure 12B Figure 13A Instruction Manual Appendix 14 / 21 Page 32 CN 121843797 A Figure 13B Figure 14A Instruction Manual Appendix 15 / 21 Page 33 CN 121843797 A Figure 14B Instruction Manual Appendix 16 / 21 Page 34 CN 121843797 A Figure 15 Instruction Manual Appendix 17 / 21 Page 35 CN 121843797 A Figure 16A Instruction Manual Appendix 18 / 21 Page 36 CN 121843797 A Figure 16B Instruction Manual Drawings 19 / 21 Page 37 CN 121843797 A Figure 17A Figure 17B Instruction Manual Drawings 20 / 21 Page 38 CN 121843797 A Figure 18 Instruction Manual Drawings 21 / 21 Page 39 CN 121843797 A.

Claims

1. A replaceable razor, the razor having: a handle (2) extending in one direction; and a razor head (1) mounted on a front end (50) of the handle on one side in the one direction, wherein, The razor head has: The blade body (10) is provided with a blade body (11) whose length direction is intersecting the aforementioned direction. A support body (20), which is connected to the front end of the handle, has a mounting surface (220) on which the blade body is placed when the blade tip is facing the side connected to the handle; and The cover (30) exposes the blade body while clamping the blade body together with the support body and is mounted on the support body. The razor has an all-metal blade, with the support body, the cover, and the handle all made of metal. When the cover is removed from the support, only the blade body can be replaced.

2. The replaceable razor according to claim 1, wherein, In the support body, the cover, and the handle, the surfaces exposed to the outside are mirror-like.

3. The replaceable razor according to claim 2, wherein, The cross-sectional shape of the handle, with the direction of normal as the one mentioned, is either circular or has rounded corners of a polygon.

4. The replaceable razor according to claim 3, wherein, The handle is a tapered shape with a gradually decreasing cross-sectional area from the rear end side opposite to the front end side toward the front end side.

5. The replaceable razor according to claim 4, wherein, The handle is solid.

6. The replaceable razor according to any one of claims 1 to 5, wherein the replaceable razor is a replaceable razor with a support bracket, wherein... The razor is equipped with a support (500), which is a bottomed cylindrical shape with sides and a bottom. The razor is held in place by inserting the rear end of the handle, which is opposite to the front end, into a hollow portion (503) formed by the side (501) and the bottom (502). The bracket has a side surface formed along the insertion direction of the handle, and a magnet (506) is provided on this side surface for holding the bracket magnetically attached to a magnetic component.

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