Replaceable blade razor and 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 replaceable blade razor (hereinafter simply referred to as a razor) in which only the blade portion can be replaced, and a replacement blade container. [Background technology]

[0002] BACKGROUND ART Patent Document 1 discloses a conventional replaceable blade razor in which only the blade body portion, which is an integrated unit of multiple blades, can be replaced.

[0003] This replaceable blade razor includes a holder having a handle and a head, and a razor head having a blade base member and a cover member that accommodates the blade body. The blade base member and the cover member are swingably supported at the lower end of the holder head by a support shaft. A locking claw is disposed at the upper end of the cover member, and the locking claw is engaged with and disengaged from a locking shaft disposed at the upper end of the blade base member, thereby enabling the lid member and the blade base member to be opened and closed. Furthermore, left and right locking claws are disposed at the upper end of the blade base member, and these left and right locking claws are engaged with and disengaged from locking recesses provided at the upper end of the holder head, thereby enabling the blade base member and the holder head to be opened and closed. Furthermore, a permanent magnet is provided inside the holder head to magnetically attract the blade body.

[0004] In a replaceable blade razor with this structure, when the left and right locking claws are released from the locking recesses to open the gap between the blade base member and the head of the holder, the razor becomes pivotable and the blade body is separated from the permanent magnet. Therefore, when the locking claws are released from the locking shaft to open the gap between the cover member and the blade base member in this state, the blade body can be easily removed. Furthermore, when the gap between the cover member and the blade base member is opened and the gap between the blade base member and the head of the holder is closed, the permanent magnet becomes able to abut the blade body, so the blade body can be easily attached by being attracted to the permanent magnet. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-131228 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the above-mentioned replaceable blade razor, the cover member and the blade base member are separately swingably attached to the bottom end of the holder head, and a mechanism is required to separately open and close the cover member and the blade base member, and the blade base member and the head of the holder, which makes the razor head structure complicated.

[0007] An object of the present disclosure is to provide a razor and a blade storage container that have a simple structure and allow replacement of only the blade body portion. [Means for solving the problem]

[0008] In order to achieve the above object, the invention described in claim 1 is 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, wherein the razor head has a blade portion (10) equipped with a blade (11) whose longitudinal direction is a direction intersecting the one direction, and a mounting surface (220) connected to the tip portion of the handle portion and on which the blade portion is placed with the cutting edge (11a) of the blade facing the side connected to the handle portion, a support (20) that magnetically attracts the blade portion to the mounting surface, and a cover portion (30) that is attached to the support portion by magnetic attraction and that clamps the blade portion together with the support portion while exposing the blade portion, and wherein when the cover portion is detached from the support portion, it is possible to replace only the blade portion.

[0009] Because the blade is magnetically attached to the support, it can be easily removed from the support against the magnetic force while still being magnetically attached to the support even when the cover is removed. Furthermore, simply bringing the support close to a new blade allows the blade to be magnetically attached to the support, making it easy to replace the blade. This allows for the replacement of just the blade.

[0010] In addition, since the number of times that the user has to touch the blade body or cutting edge can be reduced, and the blade body can be attached and detached without touching the blade body, the user's risk of injury from touching the cutting edge or the psychological anxiety that may arise from touching the blade body can be reduced, making it easier for the user to replace the blade body.

[0011] Furthermore, because only the blade can be replaced, minimal replacement is required, resulting in less waste. This corresponds to Target 12.5 of SDGs Goal 12 "Responsible Consumption and Production": "By 2030, significantly reduce waste generation through prevention, reduction, recycling and reuse."

[0012] Also, Claim 1 In the invention described in (1), the support is equipped with a magnet (23) to which the blade and cover are magnetically attracted, and the magnetic attraction between the magnet and the cover is stronger than the magnetic attraction between the magnet and the blade. As a result, the cover is integrated with the support by a relatively strong magnetic attraction, and can be prevented from separating from the support during shaving. In addition, the blade is attracted to the support by a relatively weak magnetic attraction, so the blade can be easily removed from the support when replacing it.

[0013] Furthermore, during use, the blade is sandwiched between the cover and the support, so if the cover does not come off, the blade will not come off either, and because the cover is attached with a relatively strong magnetic attraction, the blade is less likely to come off, allowing for safe use of the razor. On the other hand, after removing the cover, the blade is attached to the support with a relatively weak magnetic attraction, making it easier to remove, so the user can easily remove the blade.

[0014] Claim 2In the invention described in (1), the distance between the magnet and the portion of the blade that is magnetically attracted or attracted to the magnet is longer than the distance between the magnet and the portion of the cover that is magnetically attracted to the magnet. In this way, the strength of the magnetic attraction force can be adjusted simply by varying the distance between the magnet and the cover and the distance between the magnet and the blade, allowing for a simple razor head configuration.

[0015] Claim 3 In the invention described above, the cover portion has a window portion (35) formed therein to expose the blade body, a cover surface (30a) facing the mounting surface and clamping the blade body portion together with the support, and an outer peripheral wall (31) arranged on the outer edge of the cover surface, surrounding the outer edge of the blade body portion and abutting the outer edge of the mounting surface on the support.

[0016] In this way, the blade is sandwiched between the cover surface and the support, and the outer edge of the blade is surrounded by the outer wall, thereby positioning and holding the blade. Furthermore, by configuring the outer wall of the cover to abut the outer edge of the mounting surface, the cover can be positioned and held relative to the support. This reduces rattling of the blade and cover, allowing for more stable shaving.

[0017] Claim 4 In the invention described in (1), the blade section is configured to include a plurality of blades arranged in a direction perpendicular to the longitudinal direction, a frame (13) disposed between the blades and the support body, supporting the blades and being magnetically attracted or attracted to a magnet, and a blade stand member (12) disposed between the blades and the frame and integrated with the blades and the frame. With this configuration, the blade section can be magnetically attracted to the support body by magnetically attracting or attracting the frame to a magnet.

[0018] Claim 5In the invention described in (1), a first gripping portion (133) protruding from the support is provided on the frame at a portion of the razor head opposite the portion where the support is connected to the handle. Because the frame is provided with the first gripping portion, the user can easily remove the blade from the support by simply gripping the first gripping portion. Furthermore, because the first gripping portion is located on the opposite side of the razor head from the portion where the support is connected to the handle, the first gripping portion can be positioned in the opposite direction to the direction in which the cutting edge of the blade faces. Therefore, even if the user touches the blade when removing the blade from the support, the touch is in the opposite direction to the cutting direction, thereby protecting the user from injury. This also reduces the risk of injury or the psychological anxiety of touching the blade, making it easier for the user to replace the blade.

[0019] Claim 6 In the invention described in (1), a second gripping portion (31a) is provided on the outer peripheral wall of the cover at a portion of the razor head opposite the portion where the support is connected to the handle, protruding beyond the support and covering the first gripping portion. By providing the second gripping portion so as to cover the first gripping portion, the second gripping portion can be gripped separately from the first gripping portion, allowing the cover and the blade unit to be removed separately. Furthermore, by arranging the second gripping portion on the opposite side of the razor head from the portion where the support is connected to the handle, the second gripping portion can be positioned in the opposite direction to the direction in which the cutting edge of the blade is pointed. Therefore, even if a user touches the blade when removing the cover from the support, the user will touch it in the opposite direction to the cutting direction, thereby protecting the user from injury.

[0020] Claim 7In the invention described in

[2010] , the cover and blade sections that are magnetically attracted to the magnet are made of magnetic metal, and the razor head and handle are all made of metal. Using a full-metal body in this way provides a razor with a solid feel. Furthermore, for razors with a structure in which the blade is exposed from the cover, a full-metal body allows for a unified structure, resulting in a simple, durable, and luxurious product. Furthermore, while the blade section is replaced when it becomes dull, it is desirable to use the other sections (handle, cover, and support) for a long period of time without replacing them, thereby reducing waste. Therefore, using metal not only improves the durability of each component but also creates a durable, luxurious product, allowing users to use it for a long period of time and reducing waste.

[0021] Claim 8 The invention described in claim 4 Or 6 a container body (610) having a recess (611) in which the blade is housed and a flat flange (612) protruding around the recess; and a lid (620) that is attached to the flange while covering the blade housed in the recess and that can be removed from the flange to allow the blade to be removed, with the blade side facing the bottom of the recess and the frame side facing the opposite side to the bottom of the recess, and the blade is housed in the recess.

[0022] With this blade storage container, the blade can be removed simply by removing the lid. Furthermore, the blade can be attached to the support by simply magnetically attracting it to the magnet attached to the support while it is still placed in the recess of the container body. This allows the user to easily and safely replace the blade without having to touch it.

[0023] Furthermore, since the number of times that the user has to touch the blade body or cutting edge can be reduced and the blade body can be attached and detached without touching the blade body, the user's fear of being injured by touching the cutting edge or the blade body can be reduced, making it easier for the user to replace the blade body.

[0024] Claim 9 In the invention described in (1), multiple container bodies are connected at flanges and can be separated at the connected locations. This structure allows the blade storage container to be separated and used individually, like one-day contact lenses. Furthermore, the blade storage container can be made thinner and can be stored in multiple layers in a storage box, etc., reducing the storage space required even when storing a large number of blades.

[0025] The reference symbols in parentheses attached to each component indicate an example of the correspondence between the component and the specific components described in the embodiments described below. [Brief explanation of the drawings]

[0026] [Figure 1] 1 is a perspective view of a razor according to a first embodiment, seen from diagonally above and to the front right. [Figure 2] FIG. 2 is a front view of the razor shown in FIG. [Figure 3] FIG. 2 is a bottom view of the razor shown in FIG. [Figure 4] FIG. 2 is a right side view of the razor shown in FIG. [Figure 5] FIG. 2 is a rear view of the razor shown in FIG. [Figure 6] 2 is an exploded perspective view of the razor shown in FIG. 1, seen from the front right and diagonally above. FIG. [Figure 7] 2 is an exploded perspective view of the razor shown in FIG. 1, seen from diagonally below and behind the left. [Figure 8] 6, and (b) is an enlarged view of the blade portion in FIG. [Figure 9]1A is a perspective view of the blade body, FIG. 1B is a perspective view of the blade base member, and FIG. 1C is a perspective view of the frame. [Figure 10] FIG. 2 is a perspective view showing the razor with the cover and blade removed. [Figure 11] 6, and (b) is an enlarged view of the back panel in FIG. [Figure 12] 6, and (b) is an enlarged view of the housing in FIG. [Figure 13] 6, and (b) is an enlarged view of the cover portion in FIG. [Figure 14] 7A is an enlarged view of the handle portion in FIG. 6, and FIG. 7B is an enlarged view of the handle portion in FIG. [Figure 15] 1 is a cross-sectional view of the razor head taken along the YZ plane at the center position in the X-axis direction. [Figure 16] 1A and 1B are diagrams showing the state in which the razor is housed in the holder, where (a) is a front view and (b) is a rear view. [Figure 17] 1A and 1B are diagrams showing a blade storage container, in which FIG. 1A is a perspective view showing a state in which a lid is attached to a container body, and FIG. 1B is a perspective view showing a state in which the lid has been removed from the container body. [Figure 18] FIG. 10 is a diagram showing a spare blade container stored in a storage box. DETAILED DESCRIPTION OF THE INVENTION

[0027] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the following, including other embodiments described below, identical or equivalent parts will be denoted by the same reference numerals.

[0028] (First embodiment) A razor S according to a first embodiment of the present disclosure will be described below with reference to FIGS.

[0029] [Configuration of Razor S] 1 to 5 is configured to have a razor head 1 and a handle portion 2, and is used for shaving unwanted hair. The razor S of this embodiment has a full metal body in which at least all of the parts exposed to the outside are made of metal, and in this case, the surface exposed to the outside is a mirror-finished body.

[0030] The drawings accompanying this specification indicate the X-axis, Y-axis, and Z-axis. The vertical direction of the razor head 1 as 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. The razor head 1 side of the razor S is called the tip of the razor S, and the opposite side is called the rear end of the razor S. The right and left sides along the Y-axis in FIG. 2 are called the right and left sides of the razor S, respectively, and the upper and lower sides along the X-axis are called the upper and lower sides of the razor S, respectively. Furthermore, the front side of the paper along the Z-axis in FIG. 2, i.e., the side shown in FIG. 2, is called the front side of the razor S, and the opposite side, that is, the far side of the paper, is called the back side of the razor S. Furthermore, for each component of the razor S described below, the sides corresponding to the right side, left side, upper side, lower side, front side, and back side of the razor S will be referred to as the right side, left side, upper side, lower side, front side, and back side of each component.

[0031] [Configuration of razor head 1] The razor head 1 is a part of the razor S that constitutes the blade portion that performs shaving. The razor head 1 as a whole has an oval shape with the X-axis direction as the minor axis and the Y-axis direction as the major axis, and is structured to have a predetermined thickness in the Z-axis direction. Both the head front surface, which is the front side of the razor head 1, and the head back surface, which is the opposite side, have rectangular outer edges that are rounded 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 constituting the blade portion. Specifically, the razor head 1 includes a blade portion 10, a support 20, and a cover portion 30.

[0032] [Configuration of blade body portion 10] The blade unit 10 is a replaceable part of the razor S, and as shown in Figures 6 to 9, is composed of a blade 11, a blade base member 12, and a frame 13. The blade 11, blade base member 12, and frame 13 are all made of metal.

[0033] As shown in FIG. 8(a), the blades 11 are rectangular with their longitudinal direction in the Y-axis direction. A plurality of blades (here, five blades) are arranged along the X-axis direction, tilted at a predetermined angle relative to the X-axis, which is perpendicular to the longitudinal direction. Each blade 11 has a cutting edge 11a. As shown in FIG. 1, the cutting edges 11a of the blades 11 face downward, which is the side that connects to the handle 2, and the blades 11 are arranged so that the cutting edges 11a are evenly spaced. Therefore, shaving can be performed by moving the razor head 1 downward. Hereinafter, the direction in which the razor head 1 is moved during shaving, i.e., the downward direction, will be referred to as the shaving direction.

[0034] The blade base member 12 is a member in which multiple blades 11 are joined together by welding or the like to form an integrated unit. The blade base member 12 has a spring structure, and the elastic force of this spring structure cushions contact with the skin during shaving and prevents rattling of the blade body portion 10 when it is sandwiched between the support body 20 and the cover portion 30. As shown in Figures 8 and 9(b), the blade base member 12 has an installation base portion 121, legs 122, a support portion 123, and a leaf spring portion 124.

[0035] The installation base 121 is a base on which multiple blade bodies 11 are placed, and has multiple joints 121a arranged in a stepped pattern, with the joints 121a connected by supports 123. Each joint 121a extends along the Y axis and is linearly aligned with the blade body 11. The joints 121a have flat surfaces that serve as the joining surfaces of the blade bodies 11, and are aligned in the X-axis direction so that the surfaces are parallel to each other. The surface of each joint 121a is inclined relative to the XY plane, and each blade body 11 is spot-welded to each joint 121a, thereby integrating the blade bodies 11 with the installation base 121 in a state inclined relative to the XY plane.

[0036] The legs 122 are linear members arranged along the Y axis, and are arranged on both the upper and lower sides of the installation base 121, and extend along the Y axis like the joints 121a. Each leg 122 is located closer to the frame 13 than the installation base 121 in the Z axis direction, and leaf springs 124 are connected to both ends of each leg 122 in the Y axis direction.

[0037] The support portion 123 extends in the X-axis direction so as to intersect with each of the joints 121a and each of the legs 122, and connects each of the joints 121a and each of the legs 122. A plurality of support portions 123 (four in this example) are provided, and the inner two of the support portions 123 are arranged in positions corresponding to a first frame body portion 131 (described later) of the frame 13. The support portion 123 is bent so that each of the joints 121a is arranged in a staircase pattern, and is bent so that the legs 122 are located behind each of the joints 121a at the portions connected to each of the legs 122.

[0038] The leaf spring 124 is configured by bending both ends of each leg 122 away from the blade body 11. When a force is applied to the leaf spring 124 in the Z-axis direction, it elastically deforms and generates an elastic reaction force. The tip of the leaf spring 124 protrudes from the back side of the frame 13, and when the blade body 10 is attached to the support 20, the tip of the leaf spring 124 comes into contact with the mounting surface 220 of the support 20.

[0039] The blade holder member 12 is formed, for example, by pressing a metal plate. As shown in Fig. 8(b), the joints 121a are connected by support portions 123, but the areas between the joints 121a that are not connected to the support portions 123 are punched out and bent backward to form bent portions 121b, which can be left connected to the joints 121a to reinforce the joints 121a. Even in this case, if the support portions 123 are formed in positions corresponding to the first frame portion 131 of the frame 13, the bent portions 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 magnetically attached or attracted to the support body 20, which will be described later. As shown in Figures 8(b) and 9(c), the frame 13 has a first frame body portion 131 and a second frame body portion 132. The first frame body portion 131 and the second frame body portion 132 are an integrated part, and both the front and back sides are flat, and are formed, for example, by stamping a metal plate or by metal forming.

[0041] The first frame 131 has a rectangular frame shape and is a portion to which the blade base member 12 is joined. Specifically, the first frame 131 is composed of an upper beam 131a and a lower beam 131b that form one of two opposing sides along the Y-axis direction, and a right beam 131c and a left beam 131d that form the other of two opposing sides along the X-axis direction. The legs 122 are joined to the surfaces of the upper beam 131a and the lower beam 131b, and the support portions 123 are disposed on the right beam 131c and the left beam 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 is connected to the inside of the second frame body portion 132. Specifically, the second frame body 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, and 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 body portion 131, respectively, and the right semicircular beam portion 132c and the left semicircular beam portion 132d are arranged to protrude outward from the right beam portion 131c and the left beam portion 131d of the first frame body portion 131, respectively. The second frame portion 132 has an approximately oval frame shape, but at the center position of the upper beam portion 132a, it protrudes outward toward the opposite side from the first frame portion 131, and this protruding portion forms the first gripping portion 133.

[0043] An opening 134 is formed inside the first frame portion 131, an opening 135 is formed between the right beam portion 131c and the right semicircular beam portion 132c, and an opening 136 is formed between the left beam portion 131d and the left semicircular beam portion 132d. By forming these openings 134 to 136, interference between the bent portion 121b and the frame 13 is suppressed.

[0044] [Configuration of support 20] As shown in FIG. 10 , the support 20 is connected to one end of the handle 2 and supports the blade 10 and the cover 30. The support 20 has a generally oval shape when viewed from the front, with its major axis aligned along the Y-axis and its minor axis aligned along the X-axis. The support 20 is connected to the handle 2 at the center of one lower side of the oval shape. Specifically, as shown in FIGS. 6 and 7 , the support 20 includes a back plate 21, a housing 22, a magnet 23, a magnet holder 24, a spring 25, and a screw 26. The support 20 is one of the components that make up the body of the razor S, and the back plate 21, housing 22, and other components of the support 20 that are exposed to the outside are made of metal, with the exposed surfaces being mirror-finished.

[0045] The back plate 21 is a part that constitutes the rear surface of the head, which is the rear side of the razor head 1. As shown in Fig. 11(a), the outer shape of the back plate 21 when viewed from the front side is approximately elliptical. The back plate 21 has an outer peripheral wall 211 that follows the outer edge of the elliptical shape, and a recess 212 that is recessed in an elliptical shape from the front side to the back side is formed inside this outer peripheral wall 211. A part of the housing 22 and the like are disposed in this recess 212.

[0046] At the center of the upper side of the back panel 21, a groove 213 is formed by partially cutting out the outer peripheral wall 211. 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 below, and is sized so that 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 back side as shown in Figure 5.

[0047] In addition, a semicircular connecting recess 214 is formed by partially cutting out the outer peripheral wall 211 at the center of the lower side of the back panel 21. The tip of the handle portion 2 is disposed in this connecting recess 214 or the like, thereby connecting the support body 20 to the handle portion 2. Although a fixed head structure in which the support body 20 is fixed to the handle portion 2 and the razor head 1 cannot be swiveled relative to the handle portion 2 may be adopted, in this embodiment, the razor head 1 is swiveled relative to the handle portion 2. Specifically, as shown in FIGS. 11(a) and 11(b), a pair of bearings 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 (described later) shown in FIGS. 6 and 7 is fitted into the bearings 215, allowing the razor head 1 to swivel relative to the handle portion 2 around an axis centered on the shaft portion 51. An 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] A pair of cylindrical female screw portions 216 are provided above the bearing portion 215 on both the left and right sides of the connecting recess 214. Furthermore, seats 217 for the magnet 23 are formed on both the left and right sides of the pair of female screw portions 216. The periphery of the seat portion 217 is partially recessed from the bottom surface of the recess 212, giving it a shape that protrudes from the surrounding area. Furthermore, between each of the female screw portions 216 and each of the seat portions 217 on both the left and right sides, through holes 218 are formed that penetrate the front and back of the back panel 21.

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

[0050] The housing 22 is a component connected to the back plate 21 and, together with the back plate 21, forms the external shape of the support body 20, and is a separate component from the back plate 21 in order to accommodate the magnet 23 and the tip portion 50 of the handle portion 2 described later inside the support body 20.

[0051] As shown in FIG. 12(a), one surface of the front side of the housing 22 serves as a mounting surface 220 on which the blade unit 10 is mounted. The housing 22 also has a substantially oval outer shape when viewed from the front side. The major and minor axes of the oval shape correspond in size to the recess 212 of the back plate 21. A groove 221 is formed in the center of the upper side of the housing 22 by cutting out a portion of the wall surface of the outer edge of the housing 22. The groove 221 is positioned and shaped to correspond to the groove 213 formed in the back plate 21, and is sized so that 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 back side as shown in FIG.

[0052] Also, at the center of the lower side of the housing 22, a portion of the wall surface at the outer edge of the housing 22 is cut out to form a rectangular connecting recess 222 in which the tip 50 of the handle portion 2 is disposed. As shown in Figure 12(b), on the back side of the housing 22, on both the left and right sides of the connecting recess 222, a pair of bearings 223 are disposed in positions corresponding to the bearings 215 of the back plate 21. A shaft 51 attached to the tip 50 of the handle portion 2 is fitted into these bearings 223 as well, thereby realizing the above-mentioned swivel head structure.

[0053] A recess 224 recessed from the back side of the housing 22 toward the front side is formed at a position above the connecting recess 222 on the back side of the housing 22. The recess 224 has a shape corresponding to the upper end wall 214a and the female thread portion 216 of the connecting recess 214 on the back plate 21, and a pair of through holes 224a are formed at positions corresponding to the female thread portion 216. The through holes 224a reach the mounting surface 220, and as shown in FIG. 12(a), a counterbore 225 is formed around the through holes 224a on the mounting surface 220. Furthermore, as shown in FIG. 12(b), a spring mounting portion 226 having a cylindrical protrusion is formed above the connecting recess 222 on the bottom surface of the recess 224, and the spring 25 is fitted into the spring mounting portion 226.

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

[0055] Each storage section 227 has a recessed shape that is approximately rectangular. The thickness of the housing 22 is changed at the position where each storage section 227 is formed. Specifically, when viewed from the Z-axis direction, the thickness of the housing 22 is made thicker at a portion 22a of each storage section 227 that is located inside the housing 22 and overlaps with the mounting surface 220 than at a portion 22b that is located outside the mounting surface 220. In this embodiment, the portion 22a has some of the housing 22 remaining, and the portion 22b has no part of the housing 22 remaining, but part 22b may have some of the housing 22 remaining.

[0056] The front surface of portion 22a constitutes part of the mounting surface 220, and is the location where the blade unit 10, specifically the frame 13, is magnetically attracted or attached. Portion 22b is the location where the cover unit 30 is magnetically attracted or attached. The thickness of the housing 22 is greater in portion 22a than in portion 22b. This makes the distance between the magnet 23 and the portion of the blade unit 10 that is magnetically attracted or attached to the magnet 23 longer than the distance between the magnet 23 and the portion of the cover unit 30 that is magnetically attracted or attached to the magnet 23. Therefore, the magnetic attraction force between the magnet 23 and the cover unit 30 is stronger than the magnetic attraction force between the magnet 23 and the blade unit 10.

[0057] Furthermore, between each of the through holes 224a on the left and right sides and each of the storage portions 227, there is formed a through hole 228 that penetrates from the front to the back of the housing 22. This through hole 228 is positioned and shaped to correspond to the through hole 218 formed in the back plate 21, and is connected to the through hole 218 to communicate between the inside and outside of the razor head 1. Therefore, when the razor head 1 is washed with water, dirt and water inside the razor head 1 can be discharged through the through holes 218, 228.

[0058] Furthermore, on the front side of the housing 22, holding pieces 229 are formed at the four corners of the mounting surface 220, at positions further outward in the X-axis direction than the accommodating portion 227. The holding pieces 229 have inner wall surfaces 229a that come into contact with the mounting surface 220 and are curved in an arc shape, allowing the frame 13 to be positioned.

[0059] Magnet 23 is made of a permanent magnet, and as shown in Figures 6 and 7, has a rectangular parallelepiped shape and is sized to fit storage section 227. The material of magnet 23 is arbitrary, but magnet 23 can also be made of metal if an alloy magnet or the like is used, and here magnet 23 is also made of metal.

[0060] Magnet holder 24 is provided as needed, is arranged to surround magnet 23, and is U-shaped when viewed from the X-axis direction as shown in Figures 6 and 7. By accommodating magnet 23 in accommodation section 227 while surrounded by magnet holder 24, rattle of magnet 23 relative to 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 with a compression reaction force. As a result, the handle portion 2 is biased clockwise about the shank 51 relative to the razor head 1 when viewed from the right side of the razor S. An initial position is a position where a bottom portion 50c (described later) of the tip portion 50 of the handle portion 2, which is disposed in the connecting recess 222 of the housing 22, abuts against the bottom surface of the connecting recess 222. When no load is applied to the razor head 1, the handle portion 2 is positioned in the initial position due to the compression reaction force of the spring 25. When a load is applied to the razor head 1 during shaving, and a clockwise moment is applied to the razor head 1 with the shank 51 as viewed from the right side of the razor S, the razor head 1 pivots against the compression reaction force of the spring 25.

[0062] The screws 26 serve to integrate the housing 22 and the rear plate 21. The screws 26 are fastened to the female threaded portions 216 through the through holes 224a, thereby fixing the housing 22 to the rear plate 21. Since a counterbore 225 is formed around the through holes 224a in the mounting surface 220, the heads of the screws 26 fit into the counterbore 225, preventing the screws 26 from protruding.

[0063] [Configuration of cover portion 30] As shown in Fig. 1, the cover 30 is a component that covers the outer edge of the blade body 10 while leaving the cutting edge 11a of the blade body 11 exposed at the center. The razor head 1 is formed by attaching the cover 30 to the support 20 so that the cover 30 surrounds the outer edge of the blade body 10 and the outer edge of the housing 22. The cover 30 is one of the components that make up the body of the razor S, and is made of metal, with the surface exposed to the outside being a mirror finish.

[0064] As shown in FIG. 2, the cover portion 30 has a substantially elliptical shape when viewed from the front side. The wall surface forming the front side of the cover portion 30 is the cover surface 30a, and the surface of this cover surface 30a forms the head surface. The cover portion 30 has an outer peripheral wall 31 that follows the outer edge of the elliptical shape as shown in FIG. 13(a). As shown in FIG. 13(b), an elliptical recess 32 is formed inside the outer peripheral wall 31, recessed from the back side to the front side. The back surface of the cover surface 30a forms the bottom surface of the recess 32, and the outer peripheral wall 31 forms the inner wall surface of the recess 32. The blade portion 10, part of the housing 22, and the like are disposed in this recess 32. The shapes of the interior of the recess 32 correspond to the shapes of the blade portion 10 and the housing 22. This allows the cover portion 30 to be attached to the support 20 without any rattle. Furthermore, when the cover 30 is attached to the support 20, the blade 10 is sandwiched between the back surface of the cover surface 30a of the cover 30 and the support 20. Furthermore, when the cover 30 is attached to the support 20, parts of the bottom surface of the recess 32 come into contact with both ends of the blade 11, applying a load that presses the blade 10 toward the housing 22. Therefore, when the cover 30 is attached to the support 20, the elastic force of the leaf spring 124 and the flexure of each part of the blade 10 also suppress rattling of the blade 10.

[0065] Furthermore, seats 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 32a. The attachment 33 is a portion that is magnetically attracted to the magnet 23. When the cover part 30 is attached to the support body 20, the attachment 33 is magnetically attracted to the magnet 23 at a portion 22b of the housing 22. If the cover part 30 is made of a magnetic metal, the seat 32a can be directly magnetically attracted to the magnet 23 without the attachment 33. However, if the attachment 33 is attached, the seat 32a will be magnetically attracted to the magnet 23 via the attachment 33, so the cover part 30 does not need to be made of a magnetic metal.

[0066] The seats 32a are formed by partially protruding the bottom surface of the recess 32, and one attachment 33 is disposed to cover each seat 32a. Each attachment 33 has a V-shaped cross section cut along the YZ plane, and includes an inner wall surface 33a along the XZ plane and an attraction surface 33b disposed at the tip of the seat 32a along the XY plane. When the cover 30 is attached to the support 20, the attraction surface 33b is magnetically attracted to the magnet 23, thereby integrating the cover 30 with the support 20. The distance between the attachments 33 in the Y-axis direction is aligned with the dimensions of the mounting surface 220 and the frame 13, and the mounting surface 220 and the blade unit 10 are disposed between the attachments 33 when the cover 30 is attached to the support 20.

[0067] The front side of the cover surface 30a is the skin contact surface 34. This skin contact surface 34 comes into contact with the user's skin when shaving with the razor S. A substantially rectangular window 35 is formed in the skin contact surface 34, penetrating from the front side to the back side of the cover 30 and extending longitudinally in the Y-axis direction. The blade 11 is exposed through the window 35. In addition, recesses 34a are formed by recessing the skin contact surface 34 on both sides of the window 35 in the vertical direction. Semicircular flat surfaces 34b are formed on both sides of the skin contact surface 34 on the left and right sides of the window 35 and the recess 34a. By forming the recess 34a, the cutting edge 11a of the blade 11 protrudes from the bottom of the recess 34a to the front side, enabling a close shave. Furthermore, both ends of the blade body 11 are covered by the flat surfaces 34b, which prevents the ends of the blade body 11 from getting caught on the user's skin during shaving.

[0068] The bottom of the recess 34a of the skin-contacting surface 34 is flat on the upper side 34c, located above the window 35, i.e., on the rear side in the shaving direction. The lower side 34d, located below the window 35, i.e., on the front side in the shaving direction, has a structure in which multiple slots 34e extending in the X-axis direction are aligned in the Y-axis direction. Therefore, the slots 34e formed on the lower side 34d reduce the contact area with the skin, preventing it from sticking to the skin. Furthermore, the slots 34e allow shaving cream and moisture to enter the slots 34e, allowing for a smoother shave. The flat upper side 34c provides a smooth feel against the skin.

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

[0070] 13(a) and 13(b), the outer peripheral wall 31 protrudes upward from the center of the outer peripheral wall 31 on the upper side of the cover unit 30, and this protruding portion constitutes the second gripping portion 31a. As shown in FIG. 13(b), the inner wall surface of the outer peripheral wall 31, i.e., the wall surface on the recess 32 side of the second gripping portion 31a, is also curved upward, widening the space within the recess 32 and accommodating the first gripping portion 133 of the blade unit 10. The second gripping portion 31a also protrudes rearward beyond the rest of the cover unit 30. This portion fits into the groove 221 of the housing 22 and the groove 213 of the back panel 21.

[0071] Also, a semicircular connecting recess 31b is formed by cutting out a portion of the outer peripheral wall 31 at the center of the lower side of the cover part 30. The tip part 50 of the handle part 2 is disposed in this connecting recess 31b together with the other connecting recesses 214, 222, etc., thereby connecting the support body 20 and the handle part 2.

[0072] [Configuration of handle portion 2] The handle 2 is a portion that the user grips when using the razor S. The handle 2 is one of the portions that make up the body of the razor S, and is made of metal, with the surface exposed to the outside being a mirror finish. Specifically, the handle 2 is made of a rod-shaped member with one longitudinal direction, and has a grip 40, a tip 50 located on the upper end side of the grip 40, and a rear end 60 located on the lower end side of the grip 40.

[0073] The grip portion 40 is a rod-shaped portion located between the tip end 50 and the rear end 60, and its cross-section, normal to the longitudinal direction of the handle portion 2, is a rectangle, including a square, with rounded corners. The central axis of the grip portion 40 along its longitudinal direction is inclined at a predetermined angle relative to the rear surface of the razor head 1, which is parallel to the XY plane. When the razor head 1 oscillates, this angle changes depending on the amount of oscillation. The grip portion 40 can be of any shape, including a straight rod-shaped member, a shape that is bulged or curved at the midpoint in the longitudinal direction compared to other portions, or a shape with a recess or opening formed at the midpoint in the longitudinal direction. However, if the grip portion 40 is formed from a straight rod-shaped member whose cross-section, normal to one direction, is a circle, ellipse, or polygon with rounded corners, a simpler and sharper design can be achieved, making it easier to grip during use.

[0074] The grip portion 40 has a tapered shape in which the cross-sectional area gradually decreases from the rear end 60 to the tip end 50. This allows the grip portion 40 to be narrower at the connection end with the razor head 1 while being wider at the rear end 60. This allows for a simple design while still providing a shape that is easier to grip during use. In addition, because the center of gravity of the handle portion 2 can be positioned toward the rear end 60, the overall center of gravity of the razor S can be shifted from the tip end 50, where the razor head 1 is attached, to the rear end 60, allowing for stable shaving.

[0075] Furthermore, the grip portion 40 is made of solid metal. This allows the weight of the razor S to be increased, giving the razor S a more substantial feel and increasing the rigidity of the product. Furthermore, when the user uses the razor S, a more stable shave is possible compared to a razor with a lighter weight, and since it is easier to apply pressure when shaving, a closer shave is possible.

[0076] The tip portion 50 is located on one longitudinal side of the handle portion 2 and is connected to the support 20 of the razor head 1. As shown in FIGS. 3 to 5, the outer wall surface 50a of the tip portion 50 on the grip portion 40 side is seamlessly continuous with the outer wall surface 401 of the grip portion 40. At the portion of the tip portion 50 connected to the support 20, the outer wall surface 50a is curved such that the radial dimension from the central axis of the handle portion 2 along the longitudinal direction of the grip portion 40 gradually increases toward the connection position with the support 20. The connection portions where the outer wall surface 50a connects to the rear surface or bottom surface of the support 20 are seamless. This allows the connection portion of the handle portion 2 to be rounded. Additionally, by providing a curved surface at the connection portion, where dirt tends to accumulate, it is possible to prevent dirt from accumulating and to achieve a shape that is easier to keep clean.

[0077] 14(a) and 14(b), the portion of the tip portion 50 that is disposed inside the support body 20 has a back portion 50b and a bottom portion 50c. The back portion 50b has a semicircular shape that corresponds to the connecting recess 214 of the back plate 21. The bottom portion 50c has a rectangular shape that corresponds to the connecting recess 222 of the housing 22 and the connecting recess 31b of the cover portion 30. The bottom portion 50c is disposed to protrude from one surface 50d of the back portion 50b that faces the housing 22, and when the tip portion 50 is connected to the support body 20, the back portion 50b fits into the connecting recess 214, and the bottom portion 50c fits into the connecting recesses 222, 31b.

[0078] A cylindrical through-hole 50e extending in the Y-axis direction is formed in the tip portion 50. The shaft portion 51 is inserted into this through-hole 50e, and the housing 22 and the back plate 21 are assembled 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, thereby connecting the tip portion 50 to the support body 20.

[0079] Furthermore, one surface 50d of the back portion 50b is formed with a spring hole 50f into which one end of the spring 25 is inserted. 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. The compression reaction force of this spring 25 urges the back portion 50b in a direction away from the housing 22, i.e., in a direction returning the razor head 1 to its initial position.

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

[0081] The razor S is constructed as described above. The razor S constructed as described above is used with the blade unit 10 and the support 20 covered by the cover 30, as shown in FIG. 1. To replace the blade unit 10, the user first pinches the second grip 31a with their fingers to remove the cover 30 from the support 20, exposing the outer edge of the blade unit 10. Then, they pinch the first grip 133 to remove the blade unit 10. This allows the blade unit 10 to be easily and safely removed from the support 20. Next, with only the support 20 and the handle 2 remaining, as shown in FIG. 10, the blade unit 10 is placed on the support surface 220 of the support 20, and the cover 30 is attached to the support 20. This completes the replacement of the blade unit 10. At this time, when the blade unit 10 is brought into contact with the mounting surface 220, the frame 13 is magnetically attracted or attracted to the mounting surface 220 due to the magnetic force of the magnet 23, and the blade unit 10 is positioned by the retaining piece 229. Furthermore, when the cover unit 30 is attached to the support body 20, the attachment 33 is magnetically attracted to the magnet holder 24 due to the magnetic force of the magnet 23. The inner wall surface of the outer peripheral wall 31 then abuts against the outer edge of the mounting surface 220, in other words, the outer edge of the housing 22, and the cover unit 30 is attached to the support body 20 without any rattle. When the cover unit 30 is attached to the support body 20, the cutting edge 11a of the blade 11 in the blade unit 10 is urged toward the inner surface of the cover unit 30 by the urging force of the leaf spring 124, thereby suppressing rattle.

[0082] When the blade unit 10 is attached to the support 20, the frame 13 may be magnetically attracted directly to the mounting surface 220. However, in this embodiment, as shown in FIG. 15, the leaf spring 124 contacts the mounting surface 220, and the frame 13 is spaced apart from the mounting surface 220. When the razor S is in use, the elasticity of the leaf spring 124 causes the blade unit 10 to bend in the Z-axis direction. When a strong force is applied to the blade 11 that contacts the skin, the blade unit 10 is displaced inward of the razor head 1, softening the impact of the blade 11 on the skin. When performing this operation, it is preferable that the frame 13 be spaced apart from the mounting surface 220 so that the leaf spring 124 can be displaced. However, with this structure, the frame 13 is not directly magnetically attracted to the mounting surface 220, but is magnetically attracted at a position away from the mounting 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, but the magnetic attraction force is strong enough to prevent the blade 10 from falling off the support 20, so the blade 10 can be attached to the support 20 without any problems. Also, although the blade 10 is less likely to be displaced toward the inside of the razor head 1 when a strong force is applied to the blade 11, the frame 13 may be magnetically attracted directly to the mounting surface 220.

[0083] Even when the frame 13 is separated from the mounting surface 220, the leaf spring portion 124 is in contact with the mounting surface 220, and therefore, in this case as well, the blade portion 10 will be described in this specification as being magnetically attracted to the mounting surface 220.

[0084] [Action and effect of Razor S] Next, the effects of the razor S configured in this manner will be described.

[0085] (1) In the razor S of this embodiment, the blade unit 10 equipped with the blade 11 is placed on the placement surface 220 of the support 20 by magnetic attraction, and the cover unit 30 is also attached to the support 20 by magnetic attraction. Then, while the blade unit 10 is sandwiched between the cover unit 30 and the support 20, the cover unit 30 can be removed from the support 20 to replace the blade unit 10.

[0086] Because the blade unit 10 is magnetically attracted to the support 20, the blade unit 10 remains magnetically attracted to the support 20 even when the cover 30 is removed, and the blade unit 10 can be easily removed from the support 20 by resisting the magnetic attraction force. Furthermore, simply bringing the support 20 close to a new blade unit 10 causes the blade unit 10 to be magnetically attracted to the support 20, allowing for easy replacement of the blade unit 10. This allows for replacement of only the blade unit 10. Replacing only the blade unit 10 minimizes the number of replacement parts. Furthermore, because the cover 30 is magnetically attracted to the support 20, the blade unit 10 can be clamped between the cover 30 and the support 20, allowing for stable shaving.

[0087] Furthermore, since the number of times that the user has to touch the blade body portion 10 or the cutting edge 11a can be reduced, and the blade body portion 10 can be attached and detached without touching the blade body portion 10, the user's risk of injury from touching the cutting edge 11a or psychological anxiety that the user may have about the possibility of injury from touching the blade body portion 10 can be reduced, making it easier for the user to replace the blade body portion 10.

[0088] Furthermore, because only the blade body 10 can be replaced, only minimal replacement is required, reducing waste. This corresponds to Target 12.5 of SDGs Goal 12 "Responsible Consumption and Production": "By 2030, significantly reduce waste through prevention, reduction, recycling and reuse."

[0089] (2) The blade unit 10 and the cover unit 30 are provided with a magnet 23 that magnetically attracts them to the support 20, and the magnetic attraction between the magnet 23 and the cover unit 30 is stronger than the magnetic attraction between the magnet 23 and the blade unit 10. In this way, the cover unit 30 is integrated with the support 20 with a relatively strong magnetic attraction, preventing it from separating from the support 20 during shaving. In addition, the blade unit 10 is integrated with the support 20 with a relatively weak magnetic attraction, allowing the blade unit 10 to be easily removed from the support 20 when replacing it.

[0090] During use, the blade 10 is sandwiched between the cover 30 and the support 20, and the blade 10 will not come off unless the cover 30 is removed. The cover 30 is attracted to the support 20 with a relatively strong magnetic force, making it difficult for the blade 10 to come off, and the razor S can be used safely. On the other hand, after the cover 30 is removed, the blade 10 is attracted to the support 20 with a relatively weak magnetic force, making it easy to remove, and the user can easily remove the blade 10.

[0091] In this embodiment, the strength of the magnetic attraction force is set by making the distance between the magnet 23 and the portion of the blade 10 that is magnetically attracted or attracted to the magnet 23 longer than the distance between the magnet 23 and the portion of the cover 30 that is magnetically attracted to the magnet 23. In this way, the strength of the magnetic attraction force can be adjusted simply by varying the distance between the magnet 23 and the cover 30 and the distance between the magnet 23 and the blade 10, allowing the razor head 1 to have a simple configuration.

[0092] (3) The cover 30 includes a cover surface 30a that sandwiches the blade 10 together with the support 20, and an outer peripheral wall 31 that is disposed on the outer edge of the cover surface 30a. The outer peripheral wall 31 surrounds the outer edge of the blade 10, and the inner wall surface of the outer peripheral wall 31 abuts against the outer edge of the housing 22.

[0093] In this way, the blade unit 10 is sandwiched between the cover surface 30a and the support body 20, and the outer edge of the blade unit 10 is surrounded by the outer wall 31, thereby positioning and holding the blade unit 10. Furthermore, by configuring the outer wall 31 of the cover unit 30 to abut against the outer edge of the housing 22, the cover unit 30 can be positioned and held relative to the support body 20. This reduces rattling of the blade unit 10 and the cover unit 30, allowing for more stable shaving.

[0094] (4) The blade unit 10 is provided with a frame 13, which is positioned between the blade unit 11 and the support 20 to support the blade unit 11, and the frame 13 is magnetically attached or attracted to the magnet 23. In addition, the frame 13 is provided with a first gripping portion 133 that protrudes beyond the support 20 at a portion of the razor head 1 opposite to the portion where the support 20 is connected to the handle unit 2.

[0095] Therefore, by magnetically attaching or magnetically attracting the frame 13 to the magnet 23, the blade unit 10 can be magnetically attached to the support 20. Furthermore, since the frame 13 is provided with the first gripping portion 133, the user can easily remove the blade unit 10 from the support 20 by simply gripping the first gripping portion 133. Furthermore, since the first gripping portion 133 is positioned on the opposite side of the razor head 1 from the portion where the support 20 is connected to the handle 2, the first gripping portion 133 can be positioned in the opposite direction to the cutting edge 11a of the blade 11. Therefore, even if the user touches the blade 11 when removing the blade unit 10 from the support 20, the user touches it in the opposite direction to the cutting direction, thereby protecting the user from injury. This also reduces the risk of injury or the psychological anxiety that touching the blade unit 10 may cause injury, making it easier for the user to replace the blade unit 10.

[0096] In addition, the provision of the first gripping portion 133 makes the shape of the blade body portion 10 asymmetrical in the direction in which the multiple blade bodies 11 are arranged, i.e., in the vertical direction, making it easier to determine the orientation when attaching the blade body portion 10 to the support body 20.

[0097] (5) The outer wall 31 of the cover portion 30 also has a second gripping portion 31a that protrudes beyond the support 20 on the side opposite to the portion of the razor head 1 where the support 20 is connected to the handle portion 2 and covers the first gripping portion 133.

[0098] 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, allowing the cover portion 30 and the blade portion 10 to be removed separately. Furthermore, by arranging the second gripping portion 31a on the opposite side of the razor head 1 from the portion where the support 20 is connected to the handle portion 2, the second gripping portion 31a can be arranged in the opposite direction to the direction in which the cutting edge 11a of the blade 11 is oriented. Therefore, even if the user touches the blade 11 when removing the cover portion 30 from the support 20, the user will touch it in the opposite direction to the cutting direction, thereby protecting the user from injury.

[0099] Furthermore, since the second knob portion 31a is provided, the shape of the cover portion 30 becomes asymmetrical in the vertical direction, making it easier to determine the orientation when attaching the cover portion 30.

[0100] (6) The razor S has a full metal body, with at least the exposed portion being entirely made of metal. By using such a full metal body, the razor S can be provided with a solid feel. Furthermore, the razor S, which has a structure in which the blade 11 is exposed from the cover portion 30, can have a unified structure with a full metal body, and the design is simple and timeless, resulting in a luxurious product. Furthermore, because the razor S can be made entirely of metal, it can be easily disposed of while being environmentally friendly.

[0101] Furthermore, for example, the blade 10 is replaced when the blade 11 becomes dull, but it is desirable to use the other parts (handle 2, cover 30, support 20) for a long period of time without replacing them, thereby reducing waste. For this reason, by using metal to improve the durability of each part and by creating a high-quality product that users will not tire of, users will be able to use it for a long period of time, which will also lead to reduced waste.

[0102] The razor head 1 and handle 2 are made entirely of metal to achieve a full metal body, but the type of metal is optional. However, the attachment 33 of the cover 30 and the frame 13 of the blade 10, i.e., the part that is magnetically attracted or attracted to the magnet 23, are made of magnetic metal.

[0103] (7) The surfaces of the components that make up the body of the razor S, namely the support 20, the cover 30, and the handle 2, that are exposed to the outside, are mirror-finished. By mirror-finishing the surfaces that are exposed to the outside in this way, the razor S can have a beautiful, bright, shiny metallic appearance, and can be constructed to be easy to clean and keep clean. In addition, the razor S has a smooth, pleasant feel, and even when shaving with the blade 11, the portion of the cover 30 where the mirror surface comes into contact with the skin can provide a smooth, gliding feel.

[0104] (8) The cross section of the handle 2, normal to the longitudinal direction, is circular, elliptical, or polygonal with rounded corners. By using such a shape for the handle 2, it is possible to achieve a simpler design and a shape that is easy to grip during use.

[0105] Furthermore, the handle portion 2 has a tapered shape in which the cross-sectional area gradually decreases from the rear end 60 side opposite the tip end 50 toward the tip end 50. By tapering the handle portion 2 in this way, the connecting portion with the razor head 1 can be made thin, while the rear end 60 can be made thicker. This allows the handle portion 2 to have a simple design, while also being easier to grip during use. In addition, because the center of gravity of the handle portion 2 can be located toward the rear end 60, the overall center of gravity of the razor S can be shifted from the tip end 50, where the razor head 1 is attached, toward the rear end 60, allowing for more stable shaving.

[0106] (9) The handle 2 is made of solid metal. This gives the razor S a more substantial feel and increases the rigidity of the product. It also allows the user to shave more stably than with a lighter razor, and makes it easier to apply pressure, resulting in a closer shave.

[0107] (10) The razor head 1 has an oval shape when viewed from the Z-axis direction, and the outer edges of the oval shape are rounded in the thickness direction on both the front and back surfaces of the head. The handle 2 has a cross-sectional shape with the longitudinal direction as the normal direction, which is a circle, ellipse, or polygon with rounded corners.

[0108] With this configuration, the razor S can be made to have a rounded shape. This allows the razor S to have a simple and good-looking design, and it can also be made to have a shape that gives a sense of security despite being a blade. The razor S also has no rough or rugged feel, making it comfortable to touch. Furthermore, the rounded shape makes it difficult for dirt to accumulate, making the razor S easier to keep clean.

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

[0110] In this way, by making the connecting portions of the razor head 1 and handle 2 as well as the razor head 1 and handle 2 curved, it is possible to create a more rounded shape. In addition, by making the connecting portions, which tend to accumulate dirt, curved, it becomes difficult for dirt to accumulate, and the razor S can be made into a shape that is easier to keep clean.

[0111] (Second embodiment) The second embodiment will be described. In contrast to the first embodiment, the second embodiment is a razor with a holder, in which the razor S is provided with a holder for storing it, but the rest is the same as the first embodiment, so only the parts that are different from the first embodiment will be described.

[0112] 16(a) and 16(b), the holder 500 is a cylindrical shape with a bottom, having a side surface 501 and a bottom surface 502, and the handle portion 2 is inserted from the rear end portion 60 side into a hollow portion 503 defined by the side surface 501 and the bottom surface 502, thereby accommodating the razor S. Specifically, the holder 500 is a truncated cone, and the top surface of the truncated cone is open to form the hollow portion 503.

[0113] Slits 504 are provided on the front and back sides of holder 500, i.e., on the near and far sides of the paper in FIG. 16(a) across the central axis of truncated cone-shaped holder 500, from the top surface of holder 500 along the central axis. The width of slit 504 is constant, but gradually widens as it approaches the top surface, resulting in rounded upper end surfaces of holder 500 on both sides of slit 504. Furthermore, on the front side of holder 500, slit 504 is formed so as to extend from the top surface to the bottom surface, and on the bottom surface, the width of slit 504 also gradually widens as it approaches the bottom surface, resulting in rounded lower end surfaces of holder 500 on both sides of slit 504. Furthermore, on the back side of holder 500, the lower end of slit 504 is rounded into a semicircular shape. In this way, by forming the slit 504 and rounding the upper and lower end faces of the holder 500 on both sides of the slit 504, it is possible to improve the design and give the holder 500 a rounded shape similar to the main body of the razor S. Furthermore, by providing the slit 504 along the central axis on the front side of the holder 500, it is possible to indicate the insertion direction when inserting the handle portion 2 into the hollow portion 503, and it is also possible to make the entrance of the hollow portion 503 easier to see, allowing the user to easily store the razor S in the holder 500.

[0114] Furthermore, on the back side of holder 500, part of side surface 501 is made into flat surface 505 that is aligned with the insertion direction of handle portion 2, and holding magnet 506 is attached to flat surface 505. This holding magnet 506 allows holder 500 to be magnetically attracted to a magnetic member, so that holder 500 can be attached to a magnetic member provided on the wall of a bathroom, for example.

[0115] A slit 507 is formed in the center of flat surface 505, extending from the underside of holder 500 along the central axis. Slit 507 gradually widens as it approaches the underside of holder 500, and the tip of the upper lower side is rounded in a semicircular shape. Since slit 504 on the front side of holder 500 and slit 507 on the back side are connected to hollow portion 503, even if razor S is stored in holder 500 in a wet state after use, water can be drained through slit 504 and slit 507.

[0116] The surfaces of the holder 500 having such a structure that are exposed to the outside, for example, the side surface 501 including the open end of the hollow portion 503 and the portion inside the slit 504, are mirror-finished.

[0117] As described above, this embodiment includes the holder 500 that houses the main body of the razor S. Therefore, the razor S can be easily stored simply by inserting it into the holder 500. Furthermore, the holder 500 can be installed simply by magnetically attaching the holding magnet 506 to a wall or other surface made of a magnetic material, thereby ensuring a storage location for the razor S. This eliminates the need to secure a storage location, such as above a bathroom sink. Furthermore, because the holder 500 is attached to a magnetic material by the magnetic attraction of the holding magnet 506, it can be easily removed and relocated. Furthermore, unlike suction cups, whose adhesive strength gradually decreases, it can be installed for a long period of time. In particular, because the razor S is constructed with a heavy, full-metal body, it is important to prevent the holder 500 from falling off due to a decrease in adhesive strength. Preventing falling off ensures safety and security.

[0118] Furthermore, by making the surfaces of the holder 500 exposed to the outside mirror-finished, the holder 500 can be given a beautiful, bright, glossy appearance like a metal surface, and can be made to be easy to clean and keep clean. It also feels good to the touch. Furthermore, if the surfaces exposed to the outside of the support 20, cover 30, and handle 2 are also made mirror-finished, it can be unified with the main body of the razor S, further enhancing the design.

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

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

[0121] The container body 610 has a recess 611 that defines a storage space for accommodating the blade unit 10, and a flange 612 provided on the opening entrance side of the recess 611. The recess 611 is deep enough so that the blade unit 10 does not protrude from the opening entrance, and so that the mounting surface 220 of the support 20 of the razor head 1 can come into contact with the blade unit 10 when the support 20 is brought close. The blade unit 10 is accommodated in the recess 611 with the blade 11 side facing the bottom surface, which is the lower side of the recess 611, and the frame 13 side facing the opening entrance side of the recess 611, which is the upper side. The flange 612 is flat and protrudes outward from the opening entrance of the recess 611.

[0122] The lid 620 is attached to the flat flange 612 to cover the blade 10 housed in the recess 611 and seal the space for the blade 10. The lid 620 is made of a sheet-like material that is attached to the flange 612 as shown in the figure, or a resin cover with protrusions that fit into the recess 611, and can be easily removed from the flange 612. The figure shows the case where the lid 620 is made of a sheet-like material.

[0123] The blade body 10 stored in this blade storage container 600 can be used to replace the blade body 10. When replacing the blade body 10, the cover 620 is removed from the flange 612, and the blade body 10 is exposed so that the frame 13 can be seen from the opening entrance side of the recess 611. 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 attached to the mounting surface 220.

[0124] Thereafter, when the cover 30 is attached to the support 20 to which the blade 10 is attached, the cover 30 is magnetically attracted to the magnet 23 and attached to the support 20. As a result, the blade 10 is securely held between the cover 30 and the support 20, forming the razor head 1 and completing the replacement of the blade 10.

[0125] In this way, the blade storage container 600 can be configured so that the blade unit 10 is stored in the recess 611 of the container body 610 with the frame 13 facing upward. With this type of blade storage container 600, the blade unit 10 can be removed simply by removing the lid 620. Furthermore, the blade unit 10 can be attached to the support body 20 simply by magnetically attracting the blade unit 10 to the magnet 23 provided on the support body 20 while the blade unit 10 remains placed in the recess 611 of the container body 610. This allows the user to easily and safely replace the blade without having to touch it.

[0126] Furthermore, because only the blade body 10 needs to be replaced, the cost per replacement blade can be reduced compared to replacement blades where the entire razor head is replaced, which has a structure in which the blade body is integrated into a plastic part, and the number of products per unit cost can be increased. This means that the replacement frequency of replacement blades can be increased, allowing users to shave with newer blades, which also improves user satisfaction.

[0127] 18, the blade storage container 600 may have a structure in which a plurality of container bodies 610 are arranged side by side and integrated so as to be connected by flanges 612. In this case, adjacent container bodies 610 may be made separable by providing thin, fragile portions or perforations at the connected portions of the flanges 612.

[0128] In this way, if multiple container bodies 610 are connected at flanges 612 and can be separated at the connected locations, they can be used individually, like one-day contact lenses. This makes it possible to carry the required number of blades when traveling, etc. Furthermore, after removing the blades, the container body 610 can be separated and disposed of appropriately.

[0129] Furthermore, with this type of structure for the replacement blade storage container 600, the replacement blade storage container 600 can be made thinner and can be stored in multiple layers in a storage box 700 such as that shown in Figure 18, making it possible to reduce storage space even when storing a large number of replacement blades.

[0130] (Other embodiments) The present disclosure is not limited to the above-described embodiments and can be modified as appropriate within the scope of the claims. Furthermore, in the above-described embodiments, the elements constituting the embodiments are not necessarily essential unless specifically stated as essential or clearly considered essential in principle. Furthermore, in the above-described embodiments, when numerical values ​​such as the number, numerical value, amount, and range of components of the embodiments are mentioned, they are not limited to the specific number unless specifically stated as essential or clearly limited to a specific number in principle. Furthermore, in the above-described embodiments, when the shape, positional relationship, etc. of components, etc. are mentioned, they are not limited to the shape, positional relationship, etc., unless specifically stated or clearly limited to a specific shape, positional relationship, etc. in principle.

[0131] For example, the grip portion 40 has a tapered shape in which the cross-sectional area gradually decreases from the rear end portion 60 to the front end portion 50, but the cross-sectional area in the longitudinal direction may be constant.

[0132] Furthermore, one magnet 23 is provided on each of the left and right sides of the support 20. The distance between the magnet 23 and the portion of the blade 10 that is magnetically attracted or attached to the magnet 23 is different from the distance between the magnet 23 and the portion of the cover 30 that is attracted to the magnet 23. This makes the magnetic attraction between the magnet 23 and the cover 30 stronger than the magnetic attraction between the magnet 23 and the blade 10. However, this is just one example of differentiating the magnetic attraction between the magnet 23 and the cover 30 from the magnetic attraction between the magnet 23 and the blade 10, and other configurations are also possible. For example, the portion of the magnet 23 that is magnetically attracted to the cover 30 and the portion that is magnetically attracted to the frame 13 may be configured as separate parts with different magnetic attracting forces.

[0133] Furthermore, in the above embodiment, the magnet 23 is disposed on the support body 20 and the magnetic metal is disposed on the cover portion 30, but, for example, a magnetic metal may be disposed on the support body 20 and a magnet may be disposed on the cover portion 30. Furthermore, a magnet may be disposed on each of the support body 20 and the cover portion 30, and the magnets may be disposed so that they attract each other. In this case, for example, if the magnet on the right side of the support body 20 is an S pole and the magnet on the left side is an N pole, and the magnet on the right side of the cover portion 30 is an N pole and the magnet on the left side is an S pole, then if an attempt is made to attach the cover portion 30 in the opposite orientation, the repulsion of the magnets will prevent the cover portion 30 from being attached, and it is possible to prevent the cover portion 30 from being attached in the left-right reverse orientation.

[0134] Furthermore, although 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, 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] Furthermore, although the razor S has a full metal body, it may have a body made of resin or the like. For example, the back panel 21, housing 22, and cover 30 of the support 20 of the razor head 1 may be made of resin, or the handle 2 may also be made of resin. In this case, if a transparent resin is used as the resin, the internal structure of the blade 10 and the like can be seen, allowing the user to see the internal gimmick.

[0136] Moreover, although the holder 500 has been described as having a truncated cone shape, it may have any cylindrical shape with a bottom, such as a cylindrical shape or a polygonal cylindrical shape. [Explanation of symbols]

[0137] 1... razor head, 2... handle portion, 10... blade portion, 11... blade, 11a... cutting edge, 12... blade base member, 13... frame, 20... support, 21... back plate, 22... housing, 23... magnet, 30... cover portion, 30a... cover surface, 31... outer peripheral wall, 31a... second grip portion, 32... recess, 33... attachment, 35... window portion, 40... grip portion, 50... tip portion, 50a ...outer wall surface, 60...rear end portion, 121...installation base portion, 122...leg portion, 123...support portion, 124...plate spring portion, 133...first grip portion, 220...placing surface, 500...holder, 501...side surface, 502...bottom surface, 503...hollow portion, 505...flat surface, 506...holding magnet, 600...bladder storage container, 610...container main body portion, 611...recess portion, 612...flange portion, 620...lid portion

Claims

1. A razor having a handle portion (2) extending in one direction and a razor head (1) attached to a tip portion (50) of the handle portion on one side in the one direction, The razor head comprises: a blade body portion (10) provided with a blade body (11) whose longitudinal direction is a direction intersecting the one direction; a support (20) connected to the tip of the handle, the support having a mounting surface (220) on which the blade is placed with the cutting edge (11a) of the blade facing the side connected to the handle, and the support (20) magnetically attracts the blade onto the mounting surface; 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; When the cover portion is detached from the support, only the blade portion can be replaced, The support includes a magnet (23) to which the blade portion and the cover portion are magnetically attracted, The replaceable blade razor has a stronger magnetic attraction force between the magnet and the cover than between the magnet and the blade.

2. 2. The replaceable blade razor according to claim 1, wherein the distance between the magnet and the portion of the blade that is magnetically attracted or attracted to the magnet is longer than the distance between the magnet and the portion of the cover that is magnetically attracted to the magnet.

3. The cover portion is a cover surface (30a) that is formed with a window (35) through which the blade is exposed, faces the placement surface, and sandwiches the blade together with the support; 3. The replaceable blade razor according to claim 2, 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 body.

4. 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; 4. The replaceable blade razor according to claim 3, further comprising a blade holder member (12) disposed between said blade and said frame and integrated with said blade and said frame.

5. 5. The replaceable blade razor of claim 4, wherein the frame is provided with a first grip portion (133) that protrudes beyond the support at a portion of the razor head opposite to the portion where the support is connected to the handle portion.

6. 6. The replaceable blade razor of claim 5, wherein the outer wall 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.

7. 3. The replaceable blade razor according to claim 2, wherein the cover and the blade portion that are magnetically attracted to the magnet are made of magnetic metal, and the razor head and the handle are all made of metal.

8. A blade storage container for storing the blades used in the replaceable blade razor according to any one of claims 4 to 6, a container body (610) having a recess (611) in which the blade body is housed and a flat flange (612) protruding from the periphery of the recess; a lid (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 opposite side to the bottom surface of the recess, and the blade body portion is housed in the recess.

9. 9. The blade storage container according to claim 8, wherein a plurality of said container bodies are connected at said flanges and can be separated at said connected locations.

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