Blade body replaceable razor and replacing blade storage container

Abstract

To provide a blade which enables only a blade body part to be replaced while having a simple structure.SOLUTION: A razor head 1 comprises a blade body part 10, a support 20, and a cover part 30. The blade body part 10 includes a blade body 11 in which a direction intersecting with one direction is set to a longitudinal direction. The support 20 is connected to a tip of a handle part 2 and includes a placement surface on which the blade body part 10 is placed with the blade edge 11a of the blade body 11 facing the side connected to the handle part 2, and the blade body part 10 is placed on the placement surface by magnetic attraction. The cover part 30 sandwiches the blade body part 10 with the support 20 while exposing the blade body 11 and is attached to the support 20 by magnetic attraction. When the cover part 30 is removed from the support 20, only the blade body part 10 can be replaced.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to a blade-exchangeable razor (hereinafter simply referred to as a razor) in which only the blade body part can be exchanged and a replacement blade storage container.

Background Art

[0002] Conventionally, in Patent Document 1, a replacement blade type razor in which only a blade body part integrating a plurality of blades can be exchanged has been disclosed.

[0003] This replacement blade type razor includes a holder having a grip part and a head part, and a razor head having a blade base member for accommodating the blade body part and a lid member. The blade base member and the lid member are swingably supported by a support shaft at the lower end of the head part of the holder. A locking claw part is arranged at the upper end of the lid member, and when the locking claw part is disengaged from a locking shaft part arranged at the upper end of the blade base member, the space between the lid member and the blade base member can be opened and closed. Further, left and right locking claw parts are arranged at the upper end of the blade base member, and when the left and right locking claw parts are disengaged from a locking recess provided at the upper end of the head part of the holder, the space between the blade base member and the head part of the holder can be opened and closed. Furthermore, a permanent magnet for magnetically attracting the blade body part is provided inside the head part of the holder.

[0004] In a replacement blade type razor having such a structure, when the left and right locking claw parts are disengaged from the locking recess to open the space between the blade base member and the head part of the holder, it becomes a state where it can swing and the blade body part moves away from the permanent magnet. Therefore, when the locking claw part is disengaged from the locking shaft part in this state to open the space between the lid member and the blade base member, the blade body part can be easily removed. Also, while opening the space between the lid member and the blade base member and closing the space between the blade base member and the head part of the holder, the permanent magnet can come into contact with the blade body part, so the blade body part can be easily attached by being adsorbed by the permanent magnet.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the above-mentioned replaceable blade razor, a lid member and a blade holder member are separately swingably attached to the lower end of the head of the holder, and further, a mechanism is required that can separately open and close between the lid member and the blade holder member and between the blade holder member and the head of the holder. For this reason, the structure of the razor head becomes complicated.

[0007] An object of the present disclosure is to provide a razor and a replaceable blade container that enable replacement of only the blade body part while having a simple structure.

Means for Solving the Problems

[0008] To achieve the above object, the invention according to claim 1 is a razor having a handle part (2) extending along one direction and a razor head (1) attached to the tip part (50) on one side in one direction of the handle part, wherein the razor head includes a blade body part (10) provided with a blade body (11) having a longitudinal direction intersecting the one direction, a mounting surface (220) connected to the tip part of the handle part and on which the blade body part is placed with the cutting edge (11a) of the blade body facing the side connected to the handle part, a support body (20) for placing the blade body part on the mounting surface by magnetic adsorption, and a cover part (30) that sandwiches the blade body part together with the support body while exposing the blade body and is attached to the support body by magnetic adsorption. When the cover part is removed from the support body, only the blade body part can be replaced.

[0009] Thus, since the blade body part is magnetically adsorbed to the support body, even when the cover part is removed, the blade body part is magnetically adsorbed to the support body, and the blade body part can be easily removed from the support body against the magnetic adsorption force. Also, by simply bringing the support body close to a new blade body part, the blade body part is magnetically adsorbed to the support body, and the blade body part can be easily replaced. Thereby, only the blade body part can be replaced.

[0010] In addition, since the number of times of touching the blade body part and the blade tip can be reduced, and the blade body part can be attached and detached without touching the blade body part, it is possible to reduce the psychological anxiety that the user may feel that they will be injured by touching the blade tip or the blade body part, and it becomes easier for the user to replace the blade body part.

[0011] Furthermore, since only the blade body part can be replaced, only the minimum necessary replacement is required, the amount of waste is reduced, which corresponds to Target 12.5 of SDGs Goal 12 "Responsibility for Production and Consumption": "By 2030, significantly reduce the generation of waste through prevention, reduction, recycling and reuse of waste."

[0012] In the invention according to claim 2, the support body includes a magnet (23) to which the blade body part and the cover part are magnetically attracted, and the magnetic attraction force between the magnet and the cover part is stronger than the magnetic attraction force between the magnet and the blade body part. For this reason, the cover part can be integrated with the support body with a relatively strong magnetic attraction force so as not to separate from the support body during shaving. Also, regarding the blade body part, since it is attracted to the support body with a relatively weak magnetic attraction force, the blade body part can be easily removed from the support body during replacement.

[0013] Also, during use, the blade body part is sandwiched between the cover part and the support body. As long as the cover part does not come off, the blade body part will not come off either. Since the cover part is attracted with a relatively strong magnetic attraction force, the blade body part is also difficult to come off and the razor can be used safely. On the other hand, after removing the cover part, the blade body part is attracted to the support body with a relatively weak magnetic attraction force and is easy to remove, and the user can easily remove the blade body part.

[0014] In the invention according to claim 3, the distance between the part of the cover part that is magnetically attracted to the magnet and the magnet is made shorter than the distance between the part of the blade body part that is magnetically attracted or magnetically attracted to the magnet and the magnet. In this way, by simply making the distance between the magnet and the cover part different from the distance between the magnet and the blade body part, the magnetic attraction force can be made strong or weak, so that the razor head can have a simple structure.

[0015] In the invention according to claim 4, the cover portion is formed with a window portion (35) for exposing the blade body, and includes a cover surface (30a) that faces the placement surface and sandwiches the blade body portion together with the support body, and an outer peripheral wall (31) that is disposed at the outer edge of the cover surface, surrounds the outer edge of the blade body portion, and abuts against the outer edge of the placement surface in the support body.

[0016] In this way, while sandwiching the blade body portion between the cover surface and the support body, and surrounding the outer edge of the blade body portion with the outer peripheral wall, the blade body portion can be positioned and held. Further, by configuring the outer peripheral wall of the cover portion to abut against the outer edge of the placement surface, the cover portion can be positioned and held with respect to the support body. Thereby, rattling of the blade body portion and the cover portion can be suppressed, and more stable shaving becomes possible.

[0017] In the invention according to claim 5, the blade body portion includes a plurality of blades arranged in a direction orthogonal to the longitudinal direction, a frame (13) that is disposed between the blade and the support body, supports the blade, and is magnetically adsorbed or magnetically attracted by a magnet, and a blade base member (12) that is disposed between the blade and the frame and is integrated with the blade and the frame. According to such a configuration, if the frame is magnetically adsorbed or magnetically attracted by the magnet, the blade body portion can be magnetically adsorbed to the support body.

[0018] In the invention according to claim 6, in a portion of the razor head that is located on the side opposite to the portion where the support body is connected to the handle portion, the frame is provided with a first knob portion (133) that protrudes more than the support body. In this way, since the frame is provided with the first knob portion, the user can easily remove the blade body portion from the support body simply by pinching the first knob portion. Further, since the first knob portion is arranged on the side opposite to the portion where the support body is connected to the handle portion of the razor head, the first knob portion can be arranged in the direction opposite to the direction in which the cutting edge of the blade is directed. For this reason, when removing the blade body portion from the support body, even if the user touches the blade, the user will touch it in the direction opposite to the cutting direction, so the user can be protected from injury. And it is possible to reduce the psychological uneasiness of feeling that one might get injured or might get injured by touching the blade body portion, making it easier for the user to replace the blade body portion.

[0019] In the invention according to claim 7, in a portion of the razor head located on the side opposite to the portion where the support is connected to the handle portion, on the outer peripheral wall of the cover portion, a second knob portion (31a) that protrudes from the support and covers the first knob portion is provided. In this way, by providing the second knob portion so as to cover the first knob portion, the second knob portion can be pinched separately from the first knob portion, and the cover portion can be removed and the blade body portion can be removed separately. Also, regarding the placement location of the second knob portion, if it is on the side opposite to the portion where the support of the razor head is connected to the handle portion, the second knob portion can be arranged in the direction opposite to the direction in which the cutting edge of the blade body is directed. Therefore, when removing the cover portion from the support, even if the user touches the blade body, the user will touch it in the direction opposite to the cutting direction, so the user can be protected from injury.

[0020] In the invention according to claim 8, in addition to the portions of the cover portion and the blade body portion that are magnetically attracted by the magnet being made of a magnetic metal, the entire razor head and the handle portion are made of metal. In this way, by making it a full metal body, a heavy and substantial razor can be provided. Also, in a razor having a structure in which the blade body is exposed from the cover portion, it can be made into a unified configuration of a full metal body, which is simple and not easily boring in terms of design, and can be made into a product with a high-class feeling. Also, for example, when the sharpness of the blade body portion deteriorates, the blade body is replaced, but other parts (handle portion, cover portion, support) are not replaced and are used for a long time, so it is desired to suppress waste. Therefore, in addition to improving the durability of each part with metal, by making it a product that is not easily boring and has a high-class feeling, the user can be made to use it for a long time, which leads to the suppression of waste.

[0021] The invention according to claim 9 is a replacement blade storage container that houses a blade body used in the blade body replaceable razor according to any one of claims 5 to 7, and has a concave portion (611) in which the blade body is housed, and a flat flange portion (612) protruding around the concave portion, and a container main body portion (610) having the same; and a lid portion (620) that is attached to the flange portion while covering the blade body portion housed in the concave portion and enables the blade body portion to be taken out by being removed from the flange portion. The blade body side is directed toward the bottom surface side of the concave portion, and the frame side is directed toward the side opposite to the bottom surface of the concave portion, and the blade body portion is housed in the concave portion.

[0022] With such a replacement blade storage container, the blade body portion can be taken out simply by removing the lid portion. Further, the blade body portion can be attached to the support by simply magnetically attracting the blade body portion to the magnet provided on the support while the blade body portion is disposed in the concave portion of the container main body portion. Therefore, the user can easily and safely replace the replacement blade without touching the replacement blade.

[0023] In addition, since the number of times of touching the blade body portion or the blade tip can be reduced and the blade body portion can be attached and detached without touching the blade body portion, it is possible to reduce the psychological anxiety that the user may be injured by touching the blade tip or may be injured by touching the blade body portion, and it becomes easier for the user to replace the blade body portion.

[0024] In the invention according to claim 10, a plurality of container main body portions are connected at the flange portion and can be separated at the connected portion. With such a structure, the replacement blade storage containers can be separated one by one and used like daily contact lenses. In addition, the replacement blade storage containers can be made thinner and can be stored in multiple layers in a storage box or the like, and it is possible to reduce the storage space even when a large number of replacement blades are stored.

[0025] The reference numerals in parentheses attached to each component etc. indicate an example of the correspondence relationship between the component etc. and the specific components etc. described in the embodiments described later.

Brief Description of the Drawings

[0026]

Figure 1

Figure 2

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Figure 12

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Figure 18

Embodiments for Carrying out the Invention

[0027] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings. In addition, including other embodiments described below, parts that are identical or equivalent to each other in each embodiment will be described with the same reference numerals.

[0028] (First Embodiment) Hereinafter, the razor S according to the first embodiment of the present disclosure will be described with reference to FIGS. 1 to 15.

[0029] 〔Configuration of Razor S〕 The razor S shown in FIGS. 1 to 5 includes a razor head 1 and a handle portion 2 and is used for shaving unwanted hair. The razor S of the present embodiment has a full metal body in which at least all the parts exposed to the outside are made of metal, and here, the surface exposed to the outside is a body with a mirror finish.

[0030] In the drawings attached to this specification, the X-axis, Y-axis, and Z-axis are shown. 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 perpendicular to the X-axis is called the Y-axis, and the thickness direction of the razor head 1 perpendicular to the X-axis and Y-axis is called the Z-axis. Also, the side of the razor S on the razor head 1 side is called the tip of the razor S, and the opposite side is called the rear end of the razor S. Further, the right side and the left side along the Y-axis in FIG. 2 are called the right side and the left side of the razor S, respectively, and the upper side and the lower side along the X-axis direction are called the upper side and the lower side of the razor S, respectively. Additionally, the side in front of the paper along the Z-axis in FIG. 2, that is, the side shown in FIG. 2, is called the front side of the razor S, and the opposite side, the side behind the paper, is called the back side of the razor S. Also, for each component of the razor S described below, the side corresponding to the right side, left side, upper side, lower side, front side, and back side of the razor S is called the right side, left side, upper side, lower side, front side, and back side of each component, respectively.

[0031] 〔Configuration of Razor Head 1〕 The razor head 1 is a part that constitutes the blade part for shaving in the razor S. As a whole, the razor head 1 has an oval shape with the X-axis direction as the minor axis and the Y-axis direction as the major axis, and has a structure with a predetermined thickness as the dimension in the Z-axis direction. And both the head surface on the front side of the razor head 1 and the head back surface on the opposite side have a shape in which the rectangular outer edge is rounded in the Z-axis direction, which is the thickness direction of the razor head 1. For this reason, the razor head 1 has a rounded shape while constituting the blade part. Specifically, the razor head 1 includes a blade body part 10, a support body 20, and a cover part 30.

[0032] 〔Configuration of Blade Body Part 10〕 The blade body part 10 is a replaceable part in the razor S, and as shown in FIGS. 6 to 9, it is composed of a blade body 11, a blade base member 12, and a frame 13. All of these blade body 11, blade base member 12, and frame 13 are made of metal.

[0033] As shown in Fig. 8(a), the blade body 11 is rectangular with the Y-axis direction as the long side direction, and is arranged in a plurality of sheets (here, five sheets) along the X-axis direction while being inclined at a predetermined angle with respect to the X-axis orthogonal to the long side direction. Each blade body 11 is formed with a blade tip 11a. As shown in Fig. 1, the blade tips 11a of each blade body 11 are directed downward, which is the side connected to the handle portion 2, and a plurality of blade bodies 11 are arranged such that the blade tips 11a are arranged at equal intervals. Therefore, shaving can be performed by moving the razor head 1 downward. Hereinafter, the direction in which the razor head 1 is moved when performing this shaving, that is, the downward direction, is also referred to as the shaving direction.

[0034] The blade base member 12 is a member that joins and integrates a plurality of blade bodies 11 by welding or the like. The blade base member 12 has a spring structure, and based on the elastic force of this spring structure, it alleviates the contact with the skin during shaving and also prevents the blade body portion 10 from rattling when the blade body portion 10 is sandwiched between the support body 20 and the cover portion 30. As shown in Figs. 8 and 9(b), the blade base member 12 has an installation base portion 121, leg portions 122, a support portion 123, and a leaf spring portion 124.

[0035] The installation base portion 121 is a base on which a plurality of blade bodies 11 are installed, and includes a plurality of joint portions 121a arranged in a stepped manner, and has a structure in which the plurality of joint portions 121a are connected by the support portion 123. Each joint portion 121a extends along the Y-axis and is linear corresponding to the blade body 11. And, the surface of each joint portion 121a that becomes the joint surface of the blade body 11 is a flat surface, and they are arranged in the X-axis direction such that the surfaces are parallel to each other. The surface of each joint portion 121a is inclined with respect to the XY plane, and each blade body 11 is integrally formed on the installation base portion 121 in a state inclined with respect to the XY plane by spot-welding one blade body 11 to each joint portion 121a.

[0036] The leg portion 122 is a linear member arranged along the Y-axis, disposed on both the upper and lower sides sandwiching the installation base portion 121, and extends along the Y-axis in the same manner as each joint portion 121a. Each leg portion 122 is located on the frame 13 side rather than the installation base portion 121 in the Z-axis direction, and leaf spring portions 124 are connected to both ends of each leg portion 122 in the Y-axis direction.

[0037] The support portion 123 extends in the X-axis direction so as to intersect each joint portion 121a and each leg portion 122, and connects each joint portion 121a and each leg portion 122. A plurality of, here four, support portions 123 are provided, and two of the inner ones thereof are arranged at positions corresponding to a first frame body portion 131, which will be described later, of the frame 13. The support portion 123 is bent so that each joint portion 121a is arranged in a stepped manner, and is bent such that each leg portion 122 is located on the back side rather than each joint portion 121a at the portion connected to each leg portion 122.

[0038] The leaf spring portion 124 is configured by bending both ends of each leg portion 122 to the side opposite to the blade body 11. When a force is applied in the Z-axis direction, the leaf spring portion 124 elastically deforms to generate an elastic reaction force. The tip of the leaf spring portion 124 protrudes to the back side of the frame 13, and when the blade body portion 10 is attached to the support body 20, the tip of the leaf spring portion 124 contacts the placement surface 220 of the support body 20.

[0039] Note that the blade base member 12 is formed, for example, by pressing a plate-shaped metal. As shown in FIG. 8(b), although the spaces between the joint portions 121a are connected by the support portion 123, if the portions different from the support portion 123 among the spaces between the joint portions 121a are left connected to the joint portion 121a as punched and bent portions 121b bent to the back side, the joint portion 121a can be reinforced. Even in this case, if the support portion 123 is formed at a position corresponding to the first frame body portion 131 of the frame 13, the bent portion 121b can be prevented from interfering with the frame 13.

[0040] The frame 13 holds the blade body 11 and the blade base member 12, and is a part that is magnetically adsorbed or magnetically attracted to a support body 20 described later. As shown in FIGS. 8(b) and 9(c), the frame 13 has a first frame body portion 131 and a second frame body portion 132. These first frame body portion 131 and second frame body portion 132 are made into an integrated component, with both the front side and the back side being planar, and are formed by, for example, punching of plate-shaped metal or metal forming.

[0041] The first frame body portion 131 has a square frame shape and is the portion to which the blade base member 12 is joined. Specifically, the first frame body portion 131 is composed of an upper beam portion 131a and a lower beam portion 131b that constitute one pair of opposite sides along the Y-axis direction, and a right beam portion 131c and a left beam portion 131d that constitute the other pair of opposite sides along the X-axis direction. Each leg portion 122 is joined to the surfaces of the upper beam portion 131a and the lower beam portion 131b, and the support portion 123 is arranged on the right beam portion 131c and the left beam portion 131d so that the blade base member 12 is fixed to the frame 13, and the blade body 11 is also fixed to the frame 13 via the blade base member 12.

[0042] The second frame body portion 132 has an oval frame shape, and the first frame body portion 131 is connected to the inside. Specifically, the second frame body portion 132 is composed of an upper beam portion 132a and a lower beam portion 132b, and a right semi-circular beam portion 132c and a left semi-circular beam portion 132d. The upper beam portion 132a and the lower beam portion 132b are respectively connected to the upper beam portion 131a and the lower beam portion 131b of the first frame body portion 131, and the right semi-circular beam portion 132c and the left semi-circular beam portion 132d respectively project outward beyond the right beam portion 131c and the left beam portion 131d of the first frame body portion 131. The second frame body portion 132 has an approximately oval frame shape, but at the central position of the upper beam portion 132a, it projects outward on the side opposite to the first frame body portion 131, and this protruding portion constitutes the first gripping portion 133.

[0043] Note that an opening 134 is formed inside the first frame body 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. The formation of these openings 134 to 136 suppresses the interference between the bent portion 121b and the frame 13.

[0044] 〔Configuration of the support 20〕 As shown in FIG. 10, the support 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 support 20 has a substantially oval shape when viewed from the front side, and is arranged such that the major axis direction is along the Y-axis direction and the minor axis direction is along the X-axis direction. And it is connected to the handle portion 2 at the center position of the lower side of the oval shape. Specifically, as shown in FIGS. 6 and 7, the support 20 has a back plate 21, a housing 22, a magnet 23, a magnet holder 24, a spring 25, and a screw 26. Note that the support 20 is one of the components constituting the body of the razor S, and the back plate 21, the housing 22, etc., which are the parts of the support 20 that are exposed to the outside, are made of metal, and the surfaces exposed to the outside are mirror surfaces.

[0045] The back plate 21 is a part that constitutes the head back surface on the back side of the razor head 1. As shown in FIG. 11(a), the back plate 21 has a substantially oval outer shape when viewed from the front side. The back plate 21 includes an outer peripheral wall 211 along the outer edge of the oval shape, and a concave portion 212 that is recessed in an oval shape from the front side to the back side inside the outer peripheral wall 211. A part of the housing 22 and the like are arranged in this concave portion 212.

[0046] At the upper central position of the back plate 21, the outer peripheral wall 211 is partially cut out to form a groove portion 213. This groove portion 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. As shown in FIG. 5, when the razor head 1 is viewed from the back side, the first gripping portion 133 and the second gripping portion 31a protrude from the groove portion 213.

[0047] Also, at the central position on the lower side of the back plate 21, the outer peripheral wall 211 is partially cut away to form a semi-circular connecting recess 214. The tip of the handle portion 2 is disposed in the connecting recess 214 and the like, and the support 20 and the handle portion 2 are connected. It is also possible to fix the support 20 to the handle portion 2 to form a fixed head structure in which the razor head 1 cannot swing relative to the handle portion 2, but in this embodiment, the razor head 1 is configured as a swingable head structure that can swing relative to the handle portion 2. Specifically, as shown in FIGS. 11(a) and (b), a pair of bearing portions 215 are disposed on both the left and right sides of the connecting recess 214. A shaft portion 51 attached to the tip of the handle portion 2, which will be described later and shown in FIGS. 6 and 7, is fitted into the bearing portion 215, and the razor head 1 can swing relative to the handle portion 2 around the shaft 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 has a shape corresponding to the shape of the tip of the handle portion 2.

[0048] On both the left and right sides of the connecting recess 214, a pair of cylindrical female screw portions 216 are provided above the bearing portions 215. Also, seat portions 217 for the magnets 23 are formed on both the left and right sides sandwiching the pair of female screw portions 216. The seat portions 217 have a shape protruding more than the surrounding by being partially recessed from the bottom surface of the recess 212 around the periphery. Further, through holes 218 penetrating the front and back of the back plate 21 are formed between each of the female screw portions 216 and each of the seat portions 217 on both the left and right sides.

[0049] On the other hand, the back side of the back plate 21 constituting the back surface of the head has a shape in which the oval outer edge is rounded in the Z-axis direction, which is the thickness direction of the razor head 1.

[0050] The housing 22 is connected to the back plate 21 and is a component that, together with the back plate 21, constitutes the outer shape of the support 20. It is a separate component from the back plate 21 for accommodating the magnet 23 and the tip portion 50 of the handle portion 2, which will be described later, inside the support 20.

[0051] As shown in Fig. 12(a), with the front surface of the housing 22 as the placement surface 220, the blade body portion 10 is placed thereon. The housing 22 also has an outer shape that is approximately oval when viewed from the front side. The sizes of the major axis and minor axis of the oval shape correspond to the sizes of the concave portion 212 of the back plate 21. At the central position on the upper side of the housing 22, a groove portion 221 is formed by partially cutting away the wall surface of the outer edge of the housing 22. This groove portion 221 is in a corresponding position and shape to the groove portion 213 formed on the back plate 21. As shown in Fig. 5, when the razor head 1 is viewed from the back side, the first gripping portion 133 and the second gripping portion 31a protrude from the groove portion 213 in such a size.

[0052] Also, at the central position on the lower side of the housing 22, a rectangular connecting concave portion 222 for arranging the tip portion 50 of the handle portion 2 is formed by partially cutting away the wall surface of the outer edge of the housing 22. As shown in Fig. 12(b), on the back side of the housing 22, a pair of bearing portions 223 are arranged at positions corresponding to the bearing portions 215 of the back plate 21 on both the left and right sides of the connecting concave portion 222. A shaft portion 51 attached to the tip portion 50 of the handle portion 2 is also fitted into this bearing portion 223, and the above-described swing head structure is realized.

[0053] At a position above the connecting concave portion 222 on the back side of the housing 22, a concave portion 224 that is recessed from the back side to the front side of the housing 22 is formed. The concave portion 224 has a shape corresponding to the upper end wall 214a and the female screw portion 216 of the connecting concave portion 214 on the back plate 21. A pair of through holes 224a are formed at positions corresponding to the female screw portion 216. And the through holes 224a reach the placement surface 220. As shown in Fig. 12(a), a countersink 225 is formed around the through holes 224a on the placement surface 220. Further, as shown in Fig. 12(b), on the upper side of the connecting concave portion 222 at the bottom surface of the concave portion 224, a spring attachment portion 226 in the shape of a cylindrical protrusion is formed, and a spring 25 is fitted into this spring attachment portion 226.

[0054] On both the left and right sides of the housing 22 sandwiching a pair of through holes 224a, a pair of accommodating portions 227 for accommodating the magnets 23 and the magnet holders 24 are formed. By arranging the magnet 23 and the like in the accommodating portion 227, the blade body portion 10 and the cover portion 30 are magnetically attracted to the support body 20.

[0055] Each accommodating portion 227 is recessed in a substantially rectangular parallelepiped shape. At the position where each accommodating portion 227 is formed, the wall thickness of the housing 22 is changed. Specifically, when viewed from the Z-axis direction, a portion 22a of each accommodating portion 227 that is located inside the housing 22 and overlaps the mounting surface 220 has a thicker wall thickness of the housing 22 compared to a portion 22b located outside the mounting surface 220. In the case of this embodiment, the portion 22a has the material of the housing 22 remaining, and the portion 22b is in a state where there is no material of the housing 22, but the portion 22b may have the material remaining.

[0056] One surface on the front side of the portion 22a constitutes a part of the mounting surface 220 and is a place where the blade body portion 10, specifically the frame 13, is magnetically attracted or magnetically drawn. The portion 22b is a place where the cover portion 30 is magnetically attracted. In the portion 22a, the wall thickness of the housing 22 is thicker than that of the portion 22b. As a result, the distance between the portion of the blade body portion 10 that is magnetically attracted or magnetically drawn by the magnet 23 and the magnet 23 is longer than the distance between the portion of the cover portion 30 that is magnetically attracted by the magnet 23 and the magnet 23. For this reason, the magnetic attraction force between the magnet 23 and the cover portion 30 is stronger than the magnetic attraction force between the magnet 23 and the blade body portion 10.

[0057] Furthermore, between each through hole 224a on both the left and right sides and each accommodating portion 227, a through hole 228 penetrating the front and back of the housing 22 is formed. This through hole 228 has the same position and shape as the through hole 218 formed in the back plate 21 and is connected to the through hole 218 to communicate the inside and outside of the razor head 1. Therefore, when the razor head 1 is washed with water, the dirt and water inside the razor head 1 can be discharged through the through holes 218 and 228.

[0058] On the front side of the housing 22, holding pieces 229 protruding from the placement surface 220 are formed at the four corners of the placement surface 220 and at positions outside the accommodating portion 227 in the X-axis direction. The inner wall surface 229a of the holding piece 229 that contacts the placement surface 220 is formed as an arcuate curved surface, enabling the positioning of the frame 13.

[0059] The magnet 23 is composed of a permanent magnet, and as shown in FIGS. 6 and 7, it has a rectangular parallelepiped shape and a size corresponding to the accommodating portion 227. The material of the magnet 23 is arbitrary, but if an alloy magnet or the like is used, the magnet 23 can also be made of metal, and here the magnet 23 is also made of metal.

[0060] The magnet holder 24 is provided as needed and is arranged to surround the periphery of the magnet 23. As shown in FIGS. 6 and 7, it has a U shape when viewed from the X-axis direction. By accommodating the magnet 23 surrounded by the magnet holder 24 in the accommodating portion 227, the play of the magnet 23 with respect to the housing 22 is suppressed.

[0061] The spring 25 is a compression coil spring and is attached to the spring attachment portion 226. The spring 25 is disposed between the bottom surface of the recess 224 in the housing 22 and the tip portion 50 of the handle portion 2, and biases the tip portion 50 of the handle portion 2 by a compression reaction force. As a result, when viewed from the right side of the razor S, the handle portion 2 is biased clockwise about the shaft portion 51 with respect to the razor head 1. With the bottom portion 50c (described later) disposed in the connection recess 222 of the housing 22 of the tip portion 50 of the handle portion 2 contacting the bottom surface of the connection recess 222 as the initial position, in a state where no load is applied to the razor head 1, the handle portion 2 is in a state positioned at the initial position by the compression reaction force of the spring 25. Then, when a load is applied to the razor head 1 during shaving and a clockwise moment about the shaft portion 51 is applied to the razor head 1 when viewed from the right side of the razor S, the razor head 1 swings against the compression reaction force of the spring 25.

[0062] The screw 26 serves to integrate the housing 22 and the back plate 21. By fastening the screw 26 to the female screw portion 216 through the through hole 224a, the housing 22 is fixed to the back plate 21. Since the counterbore 225 is formed around the through hole 224a on the mounting surface 220, the head of the screw 26 enters into the counterbore 225, suppressing the protrusion of the screw 26.

[0063] 〔Configuration of the cover portion 30〕 As shown in FIG. 1, the cover portion 30 is a component that covers the outer edge portion of the blade body portion 10 while exposing the cutting edge 11a of the blade body 11 at the central position. By attaching the cover portion 30 to the support body 20 so as to surround the outer edge of the blade body portion 10 and the outer edge of the housing 22, the razor head 1 is configured. Note that the cover portion 30 is one of the components that constitute the body of the razor S, is made of metal, and the surface exposed to the outside is a mirror surface.

[0064] As shown in FIG. 2, the cover portion 30 has a substantially oval shape when viewed from the front side. The wall surface constituting the front surface of the cover portion 30 is defined as a cover surface 30a, and the head surface is constituted by the surface of this cover surface 30a. The cover portion 30 includes an outer peripheral wall 31 along an oval outer edge as shown in FIG. 13(a), and a recess 32 recessed in an oval shape from the back side toward the front side is formed inside the outer peripheral wall 31 as shown in FIG. 13(b). The bottom surface of the recess 32 is constituted by the back surface of the cover surface 30a, and the inner wall surface of the recess 32 is constituted by the outer peripheral wall 31. A part of the blade body portion 10 and the housing 22 are arranged in this recess 32. The shape inside the recess 32 is adapted to the shapes of the blade body portion 10 and the housing 22. Therefore, the cover portion 30 can be attached to the support 20 without play. Further, when the cover portion 30 is attached to the support 20, the blade body portion 10 is sandwiched between the back surface of the cover surface 30a of the cover portion 30 and the support 20. Furthermore, when the cover portion 30 is attached to the support 20, a part of the bottom surface of the recess 32 abuts against both ends of the blade 11, and a load is applied to push the blade body portion 10 toward the housing 22 side. Therefore, when the cover portion 30 is attached to the support 20, the play of the blade body portion 10 is also suppressed by the elastic force of the leaf spring portion 124 and the deflection of each part of the blade body portion 10.

[0065] In addition, seat portions 32a are provided at both ends in the Y-axis direction within the recess 32. An attachment 33 shown in FIGS. 6 and 7 is fixed to the seat portion 32a. The attachment 33 is a portion magnetically attracted to the magnet 23. When the cover portion 30 is attached to the support 20, the attachment 33 is magnetically attracted to the magnet 23 at a portion 22b of the housing 22. When the cover portion 30 is made of a magnetic metal, the seat portion 32a can be directly magnetically attracted to the magnet 23 even without providing the attachment 33. However, if the attachment 33 is attached, since the seat portion 32a is magnetically attracted to the magnet 23 via the attachment 33, the cover portion 30 does not have to be made of a magnetic metal.

[0066] The seat portion 32a is configured by partially protruding from the bottom surface of the concave portion 32, and attachments 33 are arranged one by one so as to cover each seat portion 32a. Each attachment 33 is a member having a V-shaped cross section when cut in the YZ plane, and has an inner wall surface 33a along the XZ plane and an adsorption surface 33b arranged at the tip of the seat portion 32a along the XY plane. When the cover portion 30 is attached to the support 20, the cover portion 30 is integrated with the support 20 by the adsorption surface 33b being magnetically adsorbed to the magnet 23. In the Y-axis direction, the interval between the two attachments 33 is aligned with the dimensions of the placement surface 220 and the frame 13, and when the cover portion 30 is attached to the support 20, the placement surface 220 and the blade body portion 10 are arranged between the two attachments 33.

[0067] The front side of the cover surface 30a is the portion that becomes the skin contact surface 34. This skin contact surface 34 contacts the user's skin during shaving with the razor S. In the skin contact surface 34, a substantially rectangular window portion 35 penetrating from the front side to the back side of the cover portion 30 and having the Y-axis direction as the longitudinal direction is formed. Through this window portion 35, the blade body 11 is exposed from the cover portion 30. Further, recessed portions 34a that recess the skin contact surface 34 are formed on both the upper and lower sides in the vertical direction sandwiching the window portion 35 in the skin contact surface 34. Both the left and right sides in the horizontal direction of the skin contact surface 34 sandwiching the window portion 35 and the recessed portions 34a are semi-circular flat surfaces 34b. By forming the recessed portions 34a, the cutting edge 11a of the blade body 11 is made to protrude from the bottom surface of the recessed portion 34a to the front side, enabling deep shaving. Also, both ends of the blade body 11 are covered by the flat surfaces 34b, and it is suppressed that both ends of the blade body 11 catch on the user's skin during shaving.

[0068] Regarding the bottom surface of the concave portion 34a of the skin contact surface 34, the upper surface 34c located above the window portion 35, that is, on the rear side in the shaving direction, is a flat surface. Also, regarding the lower surface 34d located below the window portion 35, that is, on the front side in the shaving direction, it has a structure in which a plurality of slots 34e extending in the X-axis direction are arranged in the Y-axis direction. For this reason, regarding the lower surface 34d, due to the formation of the slots 34e, the contact area with the skin is reduced and skin adhesion is suppressed, and shaving cream or moisture enters the slots 34e, enabling smoother shaving. Also, regarding the upper surface 34c, by being a flat surface, a smooth skin feel can be realized.

[0069] As described above, the cover portion 30 has a substantially oval shape when viewed from the front side, but in the Z-axis direction which is the thickness direction of the razor head 1, the outer edge of the oval shape is rounded. More specifically, the outer edge of the cover portion 30 is rounded in the thickness direction outside the flat surface 34b and outside the concave portion 34a on the front side of the cover portion 30.

[0070] Furthermore, as shown in FIGS. 13(a) and 13(b), at the central position 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 FIG. 13(b), in the second gripping portion 31a, the inner wall surface of the outer peripheral wall 31, that is, the wall surface on the concave portion 32 side, is also curved upward, and the space in the concave portion 32 is widened, and the first gripping portion 133 of the blade body portion 10 is accommodated in this space. Also, the second gripping portion 31a protrudes more to the back side than other parts of the cover portion 30. This part enters the groove portion 221 of the housing 22 and the 213 of the back plate 21.

[0071] Also, at the central position on the lower side of the cover portion 30, the outer peripheral wall 31 is partially cut out to form a semicircular connecting concave portion 31b. The tip portion 50 of the handle portion 2 is arranged in this connecting concave portion 31b together with other connecting concave portions 214, 222, etc., and the support body 20 and the handle portion 2 are connected.

[0072] 〔Configuration of the handle part 2〕 The handle part 2 is the part that the user grips when using the razor S. The handle part 2 is one of the parts constituting the body of the razor S, is made of metal, and the surface exposed to the outside is a mirror surface. Specifically, the handle part 2 is composed of a rod-shaped member with one direction as the longitudinal direction, and has a gripping part 40, a tip part 50 located on the upper end side of the gripping part 40, and a rear end part 60 located on the lower end side of the gripping part 40.

[0073] The gripping part 40 is a rod-shaped part located between the tip part 50 and the rear end part 60, and the cross-sectional shape with the longitudinal direction of the handle part 2 as the normal direction is a shape in which the corners of a rectangle including a square are rounded. The central axis along the longitudinal direction of the gripping part 40 is inclined at a predetermined angle with respect to the back surface of the razor head 1 parallel to the XY plane, and the angle changes according to the amount of head swing when the razor head 1 performs head swing. The gripping part 40 can be of any shape. In addition to a straight rod-shaped member, the intermediate position in the longitudinal direction may be in a shape that bulges compared to other parts, in a bent shape, or in a shape with a recess or opening formed at the intermediate position in the longitudinal direction. However, if the gripping part 40 is composed of a straight rod-shaped member with a circular, elliptical or polygonal cross-sectional shape with one direction as the normal direction and the corners rounded, a simpler and sharper design can be achieved, and a shape that is easier to grip during use can be achieved.

[0074] The gripping part 40 has a tapered shape in which the cross-sectional area gradually decreases from the rear end part 60 toward the tip part 50. For this reason, while making the connection part side of the gripping part 40 with the razor head 1 thinner, it is possible to have a shape with a thick rear end like a thick-bottomed shape. Therefore, while having a simple design, it is possible to have a shape that is easier to grip during use. In addition, since the center of gravity of the handle part 2 can be on the rear end part 60 side, the overall center of gravity position of the razor S can be shifted from the tip part 50 where the razor head 1 is attached to the rear end part 60 side, enabling stable shaving.

[0075] In addition, the gripping portion 40 is made of solid metal filled with a core. Therefore, the weight of the razor S can be increased, giving the razor S a substantial and heavy feel, and enabling the rigidity of the product to be enhanced. Also, when the user uses the razor S, stable shaving is possible compared to the case where the weight is reduced, and since a load can be easily applied during shaving, deeper shaving becomes possible.

[0076] The tip portion 50 is located on one side in the longitudinal direction of the handle portion 2 and is the portion connected to the support 20 in the razor head 1. As shown in FIGS. 3 to 5, the outer wall surface 50a on the gripping portion 40 side of the tip portion 50 is continuously connected to the outer wall surface 401 of the gripping portion 40 without a seam. And at the portion of the tip portion 50 connected to the support 20, the outer wall surface 50a is a curved surface whose radial dimension from the central axis of the handle portion 2 along the longitudinal direction of the gripping portion 40 gradually increases as it approaches the connection position with the support 20. And at each part where the outer wall surface 50a is connected to the back surface or the lower surface of the support 20, it has a seamless shape. For this reason, the connecting portion of the handle portion 2 with the razor head 1 can be formed into a rounded shape. In addition, by making the place where dirt such as the connecting portion tends to accumulate into a curved surface, it is possible to suppress the accumulation of dirt and make it easier to keep clean.

[0077] Among the tip portion 50, the portion disposed inside the support 20 has a configuration having a back portion 50b and a bottom portion 50c as shown in FIGS. 14(a) and (b). The back portion 50b has a semi-circular shape corresponding to the connecting recess 214 of the back plate 21. The bottom portion 50c has a rectangular shape corresponding to the connecting recess 222 of the housing 22 and the connecting recess 31b of the cover portion 30. The bottom portion 50c protrudes from one surface 50d on the housing 22 side of the back portion 50b. When the tip portion 50 is connected to the support 20, the back portion 50b fits into the connecting recess 214, and the bottom portion 50c fits into the connecting recesses 222 and 31b.

[0078] In the tip portion 50, a cylindrical through-hole 50e extending in the Y-axis direction is formed. By inserting the shaft portion 51 into this through-hole 50e and assembling the housing 22 and the back plate 21 so that the shaft portion 51 is supported by the bearing portion 215 of the back plate 21 and the bearing portion 223 of the housing 22, the tip portion 50 is connected to the support 20.

[0079] Also, on one surface 50d of the back portion 50b, a spring hole 50f into which one end of the spring 25 is inserted is formed. When the tip portion 50 is connected to the support 20, one end of the spring 25 attached to the spring attachment portion 226 of the housing 22 is inserted into the spring hole 50f. Due to the compression reaction force of this spring 25, the back portion 50b is biased in a direction away from the housing 22, that is, in a direction to return the razor head 1 to the initial position.

[0080] The rear end portion 60 is a portion located on the other side in the longitudinal direction of the handle portion 2. The rear end portion 60 has a spherical shape in which the cross-sectional area gradually decreases as it moves away from the tip portion 50. Therefore, also at the rear end portion 60, it has a rounded shape.

[0081] With the above structure, the razor S is configured. The razor S configured in this way is used with the blade body portion 10 and the support body 20 covered by the cover portion 30 as shown in FIG. 1. When replacing the blade body portion 10, first, the user pinches the second grip portion 31a with a finger to remove the cover portion 30 from the support body 20 and expose the blade body portion 10 to the outer edge portion. Subsequently, the user pinches the first grip portion 133 to remove the blade body portion 10. Thereby, the blade body portion 10 can be easily and safely removed from the support body 20. Next, in the state where only the support body 20 and the handle portion 2 are left as shown in FIG. 10, the blade body portion 10 is placed on the placement surface 220 of the support body 20, and further, the cover portion 30 is attached to the support body 20. Thereby, the replacement of the blade body portion 10 is completed. At this time, when the blade body portion 10 is brought into contact with the placement surface 220, the frame 13 is magnetically attracted or magnetically sucked to the placement surface 220 based on the magnetic force of the magnet 23, and the positioning of the blade body portion 10 is performed by the holding piece 229. Further, when the cover portion 30 is attached to the support body 20, the attachment 33 is magnetically attracted to the magnet holder 24 based on the magnetic force of the magnet 23. Then, the inner wall surface of the outer peripheral wall 31 abuts against the outer edge of the placement surface 220, in other words, the outer edge of the housing 22, and the cover portion 30 is attached to the support body 20 without play. When the cover portion 30 is attached to the support body 20, the cutting edge 11a of the blade 11 in the blade body portion 10 is biased toward the inner surface side of the cover portion 30 by the biasing force of the leaf spring portion 124, and play can be suppressed.

[0082] When the blade body portion 10 is attached to the support body 20, the frame 13 may be directly magnetically adsorbed to the placement surface 220. However, here, as shown in FIG. 15, the leaf spring portion 124 is in contact with the placement surface 220, and the frame 13 is separated from the placement surface 220. When the razor S is in use, due to the elasticity of the leaf spring portion 124, the blade body portion 10 bends in the Z-axis direction. When a strong force is applied to the blade body 11 in contact with the skin, the blade body portion 10 is displaced inside the razor head 1, thereby alleviating the contact of the blade body 11 with the skin. When performing such an operation, it is preferable that the frame 13 is in a state separated from the placement surface 220 so that the leaf spring portion 124 can be displaced. However, in the case of such a structure, the frame 13 is not directly magnetically adsorbed to the placement surface 220 and is magnetically attracted at a position separated from the placement surface 220. In this case, the magnetic attraction force in the latter case may be smaller than the magnetic attraction force in the former case. However, since a magnetic attraction force sufficient to prevent the blade body portion 10 from falling off the support body 20 can be obtained, the blade body portion 10 can be attached to the support body 20 without problems. Also, when a strong force is applied to the blade body 11, it becomes difficult for the blade body portion 10 to be displaced inside the razor head 1, but the frame 13 may be directly magnetically adsorbed to the placement surface 220.

[0083] Note that even when the frame 13 is in a state separated from the placement surface 220, since the leaf spring portion 124 is in contact with the placement surface 220, in this case as well, in this specification, it is expressed that the blade body portion 10 is magnetically adsorbed to the placement surface 220.

[0084] 〔Actions and Effects of Razor S〕 Subsequently, the effects of the razor S configured as described above will be explained.

[0085] (1) The razor S of the present embodiment places the blade body portion 10 provided with the blade body 11 on the placement surface 220 of the support body 20 by magnetic adsorption, and the cover portion 30 is also magnetically adsorbed to the support body 20 and attached. Then, while the blade body portion 10 is sandwiched between the cover portion 30 and the support body 20, the blade body portion 10 can be replaced by removing the cover portion 30 from the support body 20.

[0086] Thus, since the blade body part 10 is magnetically attracted to the support body 20, even when the cover part 30 is removed, the blade body part 10 is magnetically attracted to the support body 20. At the same time, when removing the blade body part 10, it can be easily removed from the support body 20 against the magnetic attraction force. Also, by simply bringing the support body 20 close to the new blade body part 10, the blade body part 10 is magnetically attracted to the support body 20, and the blade body part 10 can be easily replaced. As a result, only the blade body part 10 can be replaced. And if only the blade body part 10 is replaced, the replacement parts can be minimized. Furthermore, since the cover part 30 is magnetically attracted to the support body 20, the blade body part 10 can be clamped between the cover part 30 and the support body 20, enabling stable shaving.

[0087] In addition, since the number of times of touching the blade body part 10 or the blade tip 11a can be reduced, and the blade body part 10 can be attached and detached without touching the blade body part 10, it is possible to reduce the psychological uneasiness that the user may feel that they will be injured by touching the blade tip 11a or by touching the blade body part 10, making it easier for the user to replace the blade body part 10.

[0088] Furthermore, since only the blade body part 10 can be replaced, only the minimum necessary replacement is required, reducing waste, which corresponds to Target 12.5 of Goal 12 of the SDGs, "Take responsibility for production and consumption" - "By 2030, substantially reduce waste generation through prevention, reduction, recycling, and reuse."

[0089] (2) A magnet 23 is provided that magnetically attracts the blade body part 10 and the cover part 30 to the support body 20, and the magnetic attraction force between the magnet 23 and the cover part 30 is made stronger than the magnetic attraction force between the magnet 23 and the blade body part 10. In this way, for the cover part 30, it can be integrated with the support body 20 with a relatively strong magnetic attraction force so that it does not separate from the support body 20 during shaving. Also, for the blade body part 10, since it can be integrated with the support body 20 with a relatively weak magnetic attraction force, the blade body part 10 can be easily removed from the support body 20 during replacement.

[0090] When in use, the blade body portion 10 is sandwiched between the cover portion 30 and the support body 20. As long as the cover portion 30 does not come off, the blade body portion 10 will not come off either. Since the cover portion 30 is adsorbed by a relatively strong magnetic adsorption force, the blade body portion 10 is also difficult to come off, and the razor S can be used safely. On the contrary, after the cover portion 30 is removed, the blade body portion 10 is adsorbed to the support body 20 by a relatively weak magnetic adsorption force and is easy to remove, and the user can easily remove the blade body portion 10.

[0091] In the case of this embodiment, the strength of the magnetic adsorption force is set by making the distance between the magnet 23 and the portion of the blade body portion 10 that is magnetically adsorbed or magnetically attracted longer than the distance between the magnet 23 and the portion of the cover portion 30 that is magnetically adsorbed by the magnet 23. In this way, since the strength of the magnetic adsorption force can be adjusted only by making the distance between the magnet 23 and the cover portion 30 different from the distance between the magnet 23 and the blade body portion 10, the razor head 1 can have a simple structure.

[0092] (3) Regarding the cover portion 30, it is configured to include a cover surface 30a that sandwiches the blade body portion 10 together with the support body 20 and an outer peripheral wall 31 disposed on the outer edge thereof. And the outer peripheral wall 31 surrounds the outer edge of the blade body portion 10 and the inner wall surface of the outer peripheral wall 31 is in contact with the outer edge of the housing 22.

[0093] In this way, while sandwiching the blade body portion 10 between the cover surface 30a and the support body 20, the outer edge of the blade body portion 10 is surrounded by the outer peripheral wall 31, so that the blade body portion 10 can be positioned and held. Also, by configuring the outer peripheral wall 31 of the cover portion 30 to be in contact with the outer edge of the housing 22, the cover portion 30 can be positioned and held with respect to the support body 20. Thereby, the looseness of the blade body portion 10 and the cover portion 30 can be suppressed, and more stable shaving becomes possible.

[0094] (4) The blade body part 10 is provided with a frame 13, and the frame 13 is arranged between the blade body 11 and the support body 20 to support the blade body 11, and the frame 13 is magnetically adsorbed or magnetically attracted by the magnet 23. Further, in a portion of the razor head 1 located on the side opposite to the portion where the support body 20 is connected to the handle part 2, the frame 13 is provided with a first knob part 133 that protrudes more than the support body 20.

[0095] Therefore, if the frame 13 is magnetically adsorbed or magnetically attracted by the magnet 23, the blade body part 10 can be magnetically adsorbed to the support body 20. And since the frame 13 is provided with the first knob part 133, the user can easily remove the blade body part 10 from the support body 20 just by pinching the first knob part 133. Also, since the arrangement of the first knob part 133 is on the side opposite to the portion of the razor head 1 where the support body 20 is connected to the handle part 2, the first knob part 133 can be arranged in the direction opposite to the direction in which the cutting edge 11a of the blade body 11 is directed. For this reason, when removing the blade body part 10 from the support body 20, even if the user touches the blade body 11, the user will touch it in the direction opposite to the cutting direction, so the user can be protected from injury. And it is possible to reduce the psychological uneasiness of feeling that one might get injured or might get injured by touching the blade body part 10, making it easier for the user to replace the blade body part 10.

[0096] Also, since the first knob part 133 is provided, the shape of the blade body part 10 becomes asymmetric in the direction in which a plurality of blade bodies 11 are arranged, that is, in the vertical direction. Therefore, it becomes easy to distinguish the orientation when attaching the blade body part 10 to the support body 20.

[0097] (5) The outer peripheral wall 31 of the cover part 30 is also provided with a second knob part 31a that protrudes more than the support body 20 and covers the first knob part 133 on the side opposite to the portion of the razor head 1 where the support body 20 is connected to the handle part 2.

[0098] Thus, by providing the second gripping portion 31a so as to cover the first gripping portion 133, the second gripping portion 31a can be gripped separately from the first gripping portion 133, and the removal of the cover portion 30 and the removal of the blade body portion 10 can be performed separately. Also, regarding the placement location of the second gripping portion 31a, if it is on the side opposite to the portion of the razor head 1 where the support 20 is connected to the handle portion 2, the second gripping portion 31a can be arranged in the direction opposite to the direction in which the cutting edge 11a of the blade 11 is directed. Therefore, when removing the cover portion 30 from the support 20, even if the user touches the blade 11, the user will touch it in the direction opposite to the cutting direction, so the user can be protected from injury.

[0099] Also, since the shape of the cover portion 30 becomes asymmetric in the vertical direction due to the provision of the second gripping portion 31a, it becomes easy to determine the orientation when attaching the cover portion 30.

[0100] (6) At least the externally exposed portions of the razor S are made of all metal to form a full metal body. By making such a full metal body, a heavy and substantial razor S can be provided. Also, in a razor S having a structure that exposes the blade 11 from the cover portion 30, it can be configured with a unified feeling of a full metal body, and it can be made into a product that is simple and not boring in terms of design, and has a high-class feeling. Furthermore, since the entire razor S can be made of metal, it is possible to easily separate and dispose of it while considering the environment.

[0101] Also, for example, when the sharpness of the blade 11 of the blade body portion 10 deteriorates, the blade body 11 is replaced, but the other parts (handle portion 2, cover portion 30, support 20) are not replaced and are used for a long time, so it is desirable to suppress waste. Therefore, in addition to improving the durability of each component with metal, by making a product that is not boring and has a high-class feeling, the user can be made to use it for a long time, which leads to the suppression of waste.

[0102] Note that a full metal body is realized by making the razor head 1 and the handle part 2 entirely of metal, but the type of metal is arbitrary. However, the attachment 33 of the cover part 30 and the frame 13 of the blade body part 10, that is, the part that is magnetically adsorbed or magnetically attracted by the magnet 23, is made of magnetic metal.

[0103] (7) The parts constituting the body of the razor S, that is, the surfaces of the support 20, the cover part 30, and the handle part 2 that are exposed to the outside are mirror surfaces. In this way, by making the surfaces exposed to the outside into mirror surfaces, the razor S can have a bright, shiny, and beautiful appearance on the metal surface, and can be structured to be easy to clean and keep clean. Also, it can be made into a razor S that has a smooth and good touch feeling, and gives a smooth and slippery touch feeling at the part of the cover part 30 where the mirror surface touches the skin while shaving with the blade 11.

[0104] (8) The handle part 2 has a cross-sectional shape with the longitudinal direction as the normal direction that is circular, elliptical, or a shape with the corners of a polygon rounded. By making the handle part 2 have such a shape, it can have a simpler design and a shape that is easy to grip during use.

[0105] Furthermore, the handle part 2 has a tapered shape in which the cross-sectional area gradually decreases from the rear end part 60 side opposite to the tip part 50 toward the tip part 50 side. By making the handle part 2 tapered in this way, the connecting part with the razor head 1 can be made thinner while making the rear end part 60 thicker into a shape with a thick butt. For this reason, while making the handle part 2 have a simple design, it can be made into a shape that is easier to grip during use. Also, since the center of gravity of the handle part 2 can be on the rear end part 60 side, the overall center of gravity position of the razor S can be shifted from the tip part 50 where the razor head 1 is attached toward the rear end part 60 side, and more stable shaving becomes possible.

[0106] (9) The handle part 2 is made of solid metal filled with a core, which gives the razor S a more substantial and heavy feeling, enhances the rigidity of the product, enables stable shaving compared to a lighter razor when the user uses it, and makes it easier to apply load, thus enabling deeper shaving.

[0107] (10) Regarding the razor head 1, the shape viewed from the Z-axis direction is an oval shape, and both the head surface and the head back surface have the outer edge of the oval shape rounded in the thickness direction. Regarding the handle part 2, the cross-sectional shape with the longitudinal direction as the normal direction is a circular shape, an elliptical shape, or a shape with the corners of a polygon rounded.

[0108] With such a configuration, a razor S with a rounded shape can be formed. This enables the razor S to have a simple and aesthetically pleasing design, and can also be shaped to give a sense of security despite being a cutting tool. In addition, it can be made into a razor S with a smooth touch without a rough and bumpy feeling. Furthermore, by making it a rounded shape, dirt is less likely to accumulate, and the razor S can be kept clean easily.

[0109] Also, at the part of the tip 50 of the handle part 2 that is connected to the support 20, the outer wall surface 50a of the tip 50 is a curved surface where the radial dimension from the central axis of the handle part 2 gradually increases as it approaches the connection position with the support 20.

[0110] In this way, not only the razor head 1 and the handle part 2 but also the part where they are connected is made into a curved surface, enabling a more rounded shape. In addition, by making the place where dirt is likely to accumulate, such as the connection part, into a curved surface, dirt is less likely to accumulate, and the razor S can be kept cleaner more easily.

[0111] (Second Embodiment) A description will be given of the second embodiment. This embodiment is a razor with a holder for housing the razor S, compared to the first embodiment, and since the other aspects are the same as those of the first embodiment, only the parts different from the first embodiment will be described.

[0112] As shown in FIGS. 16(a) and 16(b), the holder 500 has a bottomed cylindrical shape with a side surface 501 and a bottom surface 502, and the razor S is housed by inserting the handle portion 2 from the rear end portion 60 side into the hollow portion 503 formed by the side surface 501 and the bottom surface 502. Specifically, the holder 500 has a frustum-of-a-cone shape, with the upper surface side of the frustum-of-a-cone shape being open and the hollow portion 503 being formed.

[0113] On the front side and the back side of the holder 500, that is, on the front side and the far side of the paper surface of FIG. 16(a) sandwiching the central axis of the frustum-of-a-cone-shaped holder 500, slits 504 are formed along the central axis direction from the upper surface of the holder 500. The width of the slit 504 is constant, but it gradually expands as it approaches the upper surface side, so that the upper end surfaces of the holder 500 located on both sides of the slit 504 are rounded. Also, on the front side of the holder 500, the slit 504 is formed so as to reach from the upper surface to the lower surface, and on the lower surface side as well, the width of the slit 504 gradually expands as it approaches the lower surface side, so that the lower end surfaces of the holder 500 located on both sides of the slit 504 are rounded. Further, on the back side of the holder 500, the lower tip of the slit 504 is rounded in a semi-circular shape. In this way, while forming the slit 504, by rounding the upper end surface and the lower end surface of the holder 500 on both sides of the slit 504, the design property can be improved while achieving a rounded shape similar to the main body of the razor S. Also, by providing the slit 504 along the central axis on the front side of the holder 500, the insertion direction when inserting the handle portion 2 into the hollow portion 503 can be indicated, and the entrance of the hollow portion 503 can be made easily visible, enabling the user to easily house the razor S in the holder 500.

[0114] Also, on the back side of the holder 500, a part of the side surface 501 is a flat surface 505 along the insertion direction of the handle portion 2, and a holding magnet 506 is attached to the flat surface 505. Due to this holding magnet 506, the holder 500 can be magnetically attracted to a magnetic member, so that the holder 500 can be attached to a magnetic member provided on, for example, the wall surface of a washroom.

[0115] At the central position of the flat surface 505, a slit 507 is formed along the central axis direction from the lower surface of the holder 500. The slit 507 gradually expands as it approaches the lower surface side of the holder 500, and the upper and lower tips are rounded in a semicircular shape. Since the slit 504 on the front side and the slit 507 on the back side of the holder 500 are connected to the hollow portion 503, even if the razor S is housed in the holder 500 in a wet state after use, drainage can also be performed through the slit 504 and the slit 507.

[0116] And, among the holders 500 having such a structure, the surfaces exposed to the outside, for example, the side surface 501 including the opening end of the hollow portion 503 and the portion inside the slit 504, are mirror surfaces.

[0117] As described above, in this embodiment, a holder 500 for housing the main body of the razor S is provided. Therefore, the razor S can be easily stored simply by inserting it into the holder 500. Also, the holder 500 can be installed simply by magnetically attracting the holding magnet 506 to a wall surface or the like composed of a magnetic member, and a storage place for the razor S can be secured, so it is not necessary to secure a storage place above a washroom or the like. Further, since the holder 500 is installed on the magnetic member by the magnetic attraction force of the holding magnet 506, in addition to being able to be easily removed and relocated, unlike a suction cup whose suction force can gradually decrease, it can also be installed for a long time. In particular, since the razor S is configured with a heavy full-metal body, it is important to prevent the holder 500 from falling off due to a decrease in the suction force, and safety can be ensured by preventing the fall.

[0118] Further, by making the surface of the holder 500 that is exposed to the outside a mirror surface, the holder 500 can have a bright, shiny, and beautiful appearance on the metal surface, and can be structured to be easy to clean and keep clean. Also, it can have a good touch feeling. Further, when the surfaces of the support 20, the cover portion 30, and the handle portion 2 that are exposed to the outside are also mirror surfaces, a sense of unity can be achieved with the main body of the razor S, and the design can be further enhanced.

[0119] (Third Embodiment) The third embodiment will be described. In this embodiment, a replacement blade storage container in which the blade body portion 10 is accommodated, which is suitable for the razor S described in the first and second embodiments, will be described. Note that the razor S is the same as in the first and second embodiments.

[0120] As shown in FIGS. 17(a) and (b), the blade body portion 10 is stored in a replacement blade storage container 600. The replacement blade storage container 600 is composed of a container main body portion 610 and a lid portion 620.

[0121] The container main body portion 610 is configured to have a recess 611 that forms a storage space for accommodating the blade body portion 10 and a flange portion 612 provided on the opening inlet side of the recess 611. The recess 611 is set to a depth such that the blade body portion 10 does not protrude from the opening inlet and the placement surface 220 of the support 20 can be brought into contact with the blade body portion 10 when the support 20 in the razor head 1 is brought close. The blade body portion 10 is accommodated in this recess 611 such that the blade 11 side faces the bottom side of the recess 611 and the frame 13 side faces the opening inlet side of the recess 611. The flange portion 612 has a structure that protrudes outward from the opening inlet of the recess 611 and is planar.

[0122] The cover portion 620 is attached to the planar flange portion 612 to cover the blade body portion 10 housed in the recess 611 while sealing the accommodation space of the blade body portion 10. The cover portion 620 is composed of a sheet-like member attached to the flange portion 612 as shown in the figure, or a resin cover provided with protrusions to be fitted into the recess 611, and is configured to be easily removable from the flange portion 612. In the figure, a case where the cover portion 620 is composed of a sheet-like member is shown.

[0123] Using the blade body portion 10 housed in such a replacement blade accommodation container 600, the blade body portion 10 can be replaced. When replacing the blade body portion 10, the cover portion 620 is removed from the flange portion 612, and the blade body portion 10 is exposed so that the frame 13 side can be seen from the opening inlet side of the recess 611. Then, when the support 20 is brought close to the blade body portion 10 in this state, the frame 13 is magnetically attracted to the magnet 23, and the blade body portion 10 is attached to the mounting surface 220.

[0124] After that, when the cover portion 30 is attached to the support 20 to which the blade body portion 10 is attached, the cover portion 30 is magnetically attracted to the magnet 23 and attached to the support 20. As a result, the blade body portion 10 is clamped between the cover portion 30 and the support 20 without play, the razor head 1 is configured, and the replacement of the blade body portion 10 is completed.

[0125] In this way, a replacement blade accommodation container 600 can be provided in which the blade body portion 10 is housed with the frame 13 side facing upward in the recess 611 of the container main body portion 610. With such a replacement blade accommodation container 600, the blade body portion 10 can be taken out simply by removing the cover portion 620. Also, the blade body portion 10 can be attached to the magnet 23 provided on the support 20 while the blade body portion 10 is disposed in the recess 611 of the container main body portion 610. Therefore, the user can easily and safely perform blade replacement without touching the replacement blade.

[0126] Furthermore, since only the blade body part 10 needs to be replaced, the unit price per product of the replacement blade can be reduced compared to replacing the entire razor head with a structure in which the blade body is integrated with the resin parts. Therefore, the number of products per cost can be increased. As a result, the replacement frequency of the replacement blade can be increased, and shaving can be performed using a newer blade, so that the user's satisfaction can also be improved.

[0127] Also, regarding the replacement blade storage container 600, as shown in FIG. 18, it may be structured such that a plurality of container main body parts 610 are arranged side by side and integrated by being connected at the flange part 612. In that case, it is also possible to make it separable between adjacent container main body parts 610 by providing a thin and fragile part or a perforation at the connected part of the flange part 612.

[0128] In this way, if the container main body part 610 has a structure in which a plurality of them are connected at the flange part 612 and can be separated at the connected part, they can be separated one by one and used like daily contact lenses. As a result, when traveling on business or the like, it is possible to carry the necessary number of replacement blades. Also, the container main body part 610 after taking out the replacement blade can be separated and appropriately discarded.

[0129] Also, with such a structure of the replacement blade storage container 600, the replacement blade storage container 600 can be made thinner and can also be stored in multiple layers in a storage box 700 or the like as shown in FIG. 18. Even if a large number of replacement blades are stored, it is possible to reduce the storage space.

[0130] (Other embodiments) The present disclosure is not limited to the above-described embodiments, and can be appropriately modified within the scope described in the claims. Further, in the above embodiments, the elements constituting the embodiments are not necessarily essential, except when it is explicitly stated that they are essential or when they are considered to be clearly essential in principle. Also, in each of the above embodiments, when numerical values such as the number, numerical value, quantity, range, etc. of the components of the embodiment are mentioned, they are not limited to that specific number, except when it is explicitly stated that they are essential or when they are clearly limited to a specific number in principle. Further, in each of the above embodiments, when referring to the shape, positional relationship, etc. of the components, etc., they are not limited to that shape, positional relationship, etc., except when it is explicitly stated or when they are clearly limited to a specific shape, positional relationship, etc. in principle.

[0131] For example, although the gripping portion 40 is formed in a tapered shape in which the cross-sectional area gradually decreases from the rear end portion 60 toward the front end portion 50, the cross-sectional area in the longitudinal direction may be constant.

[0132] Also, magnets 23 are provided one on each of the left and right sides of the support 20. And, the distance between the magnet 23 and the portion of the blade body 10 that is magnetically attracted or magnetically drawn by the magnet 23 is made different from the distance between the magnet 23 and the portion of the cover portion 30 that is attracted by the magnet 23. Thereby, the magnetic attraction force between the magnet 23 and the cover portion 30 is made stronger than the magnetic attraction force between the magnet 23 and the blade body 10. However, this is an example of making the magnetic attraction force between the magnet 23 and the cover portion 30 different from the magnetic attraction force between the magnet 23 and the blade body 10, and it can also be realized with other configurations. For example, the portion of the magnet 23 that magnetically attracts the cover portion 30 and the portion that magnetically attracts the frame 13 may be configured with separate components having different magnetic attraction forces.

[0133] In the above-described embodiment, the magnet 23 is disposed on the support 20 and the magnetic metal is disposed on the cover portion 30. However, for example, the magnetic metal may be disposed on the support 20 and the magnet may be disposed on the cover portion 30. Further, magnets may be disposed on each of the support 20 and the cover portion 30, and magnets that attract each other may be disposed. At this time, for example, if the magnet on the right side of the support 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 portion 30 is the N pole and the left side is the S pole, when trying to attach the cover portion 30 in the opposite direction, the cover portion 30 cannot be attached due to the repulsion of the magnets, and it is possible to prevent the cover portion 30 from being attached in the reverse left and right direction.

[0134] Also, the upper surface 34c of the cover portion 30 is a flat surface, and the lower surface 34d has a structure in which a plurality of slots 34e are arranged. However, the upper surface 34c may also have a structure in which a plurality of slots 34e are arranged, or the lower surface 34d may be a flat surface.

[0135] Also, although the razor S is configured with a full metal body, it may be a body made of resin or the like. For example, the back plate 21, the housing 22, and the cover portion 30 of the support 20 of the razor head 1 can be made of resin, or the handle portion 2 can be made of resin. In that case, if a transparent resin is used as the resin, the structure of the internal blade body portion 10 and the like can be visually recognized, and it is possible to show the internal gimmick feeling.

[0136] Also, the holder 500 has a frustum shape, but it may have a bottomed cylindrical shape, for example, a cylindrical shape, a polygonal cylindrical shape, or the like.

Explanation of reference numerals

[0137] 1…Razor head, 2…Handle part, 10…Blade body part, 11…Blade body, 11a…Blade tip, 12…Blade base member, 13…Frame, 20…Support, 21…Back panel, 22…Housing, 23…Magnet, 30…Cover part, 30a…Cover surface, 31…Outer peripheral wall, 31a…Second gripping part, 32…Recess, 33…Attachment, 35…Window part, 40…Gripping part, 50…Tip part, 50a…Outer wall surface, 60…Rear end part, 121…Installation base part, 122…Leg part, 123…Support part, 124…Leaf spring part, 133…First gripping part, 220…Placement surface, 500…Holder, 501…Side surface, 502…Bottom surface, 503…Hollow part, 505…Flat surface, 506…Holding magnet, 600…Blade replacement container, 610…Container main body part, 611…Recess, 612…Flange part, 620…Cover part

Claims

1. A razor having a handle portion (2) extending in one direction and a razor head (1) attached to a tip portion (50) on one side of the handle portion in the one direction, The razor head comprises: A blade unit (10) having a blade (11) whose longitudinal direction is a direction intersecting the one direction; a support (20) connected to the tip of the handle portion, the support (20) including a placement surface (220) on which the blade portion is placed with the cutting edge (11a) of the blade facing the side connected to the handle portion, and the support (20) for placing the blade portion on the placement surface by magnetic attraction; a cover portion (30) that holds the blade portion together with the support while exposing the blade and is attached to the support by magnetic attraction; This is a replaceable blade razor in which only the blade portion can be replaced when the cover portion is detached from the support.

2. The support includes a magnet (23) to which the blade portion and the cover portion are magnetically attracted, 2. The razor according to claim 1, wherein a magnetic attraction force between said magnet and said cover portion is stronger than a magnetic attraction force between said magnet and said blade portion.

3. 3. The razor according to claim 2, wherein the distance between the magnet and a portion of the blade portion that is magnetically attracted or attracted to the magnet is longer than the distance between the magnet and a portion of the cover portion that is magnetically attracted to the magnet.

4. The cover portion is a cover surface (30a) that is formed with a window portion (35) through which the blade is exposed, faces the placement surface, and holds the blade portion together with the support; 4. The replaceable blade razor according to claim 3, further comprising an outer peripheral wall (31) disposed on the outer edge of the cover surface, surrounding the outer edge of the blade portion and abutting against the outer edge of the mounting surface of the support.

5. The blade portion is A plurality of the blades are arranged in a direction perpendicular to the longitudinal direction; a frame (13) disposed between the blade and the support, supporting the blade and being magnetically attracted or attracted to the magnet; 5. The replaceable blade razor according to claim 4, further comprising a blade base member (12) disposed between said blade body and said frame and integrated with said blade body and said frame.

6. 6. The razor according to claim 5, wherein the frame is provided with a first gripping portion (133) protruding beyond the support at a portion of the razor head opposite to a portion where the support is connected to the handle portion.

7. 7. The razor according to claim 6, wherein the outer wall of the razor head is provided with a second gripping portion (31a) that protrudes beyond the support and covers the first gripping portion at a portion of the razor head opposite to the portion where the support is connected to the handle portion.

8. 4. The razor according to claim 3, wherein the cover portion and the blade portion that are magnetically attracted to the magnet are made of a magnetic metal, and the razor head and the handle portion are all made of metal.

9. A blade container for storing the blades used in the replaceable blade razor according to any one of claims 5 to 7, A container body (610) having a recess (611) in which the blade body is housed and a flat flange portion (612) protruding around the recess; a cover (620) that is attached to the flange while covering the blade body contained in the recess and that can be removed from the flange to allow the blade body to be removed; The blade body side faces the bottom surface of the recess, and the frame side faces the side opposite the bottom surface of the recess, and the blade body portion is accommodated in the recess.

10. The blade storage container according to claim 9 , wherein a plurality of said container bodies are connected to each other at said flange portions and are detachable at said connected portions.

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