Razor, razor head, and mounting body for razor head

Abstract

To provide a razor with a razor head attachable / detachable to / from a fitting body that has a suitable swing function and is environmentally friendly.SOLUTION: A razor has a razor head, and a fitting body of the razor head that has a connection hole for detachable connection of the razor head. The razor head comprises a blade assembly body which holds a blade body, and a connection part which is inserted in the connection hole. The connection hole is an open hole in which the connection part is inserted, and a cross section of the connection hole in a face orthogonal to an insertion direction of the connection part into the connection hole is so formed that a length of the blade body in a longitudinal direction orthogonal to an elongation direction of the blade body is longer than a length in a cross direction that is the extension direction of the blade body held by the razor head.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] One aspect of the present invention relates to a razor, a razor head, and an attachment for a razor head.

Background Art

[0002] In recent years, the 3Rs, a collective term for the three R principles: Reduce (reducing waste by treasuring articles carefully), Reuse (reusing usable articles repeatedly), and Recycle (reusing waste as a resource), have been advocated. In addition, among the 17 goals of the SDGs (Sustainable Development Goals) adopted at the United Nations Summit, ensuring sustainable forms of production and consumption is listed, and significant reduction of waste generation and the like are required. Under such circumstances, also in the field of razors, it is required to promote the development of environmentally-friendly razors that satisfy the 3Rs.

[0003] Incidentally, Patent Document 1 discloses an invention relating to a replaceable blade detachable razor in which a replaceable blade can be detachably connected to a holder. Patent Document 2 discloses a swing-type razor in which a razor head assembled with a blade body can swing against elastic force relative to the head of a holder. Patent Documents 3 to 7 disclose inventions relating to razor heads configured to swing relative to a handle.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Patent Document 5

[0005] However, conventional razors have not always adequately considered both environmental friendliness and user comfort. While some razors with the aforementioned conventional razor heads offer relatively good performance due to their pivoting head function, there was room for functional improvement. Furthermore, they did not adequately address environmental concerns.

[0006] The present invention aims to provide a razor capable of solving the above-mentioned problems. [Means for solving the problem]

[0007] To solve the above problems, the present invention provides the following means. In the following description, reference numerals and other symbols in the drawings may be added in parentheses to facilitate understanding of the invention, but the components of the present invention are not limited to these specific configurations and should be interpreted broadly to the extent that a person skilled in the art can technically understand.

[0008] One means of the present invention is, A razor head mounting body (2) having a connecting hole (25) for detachably connecting the razor head (3), The connecting hole is a through hole into which the connecting portion of the razor head is inserted, The cross-section of the connecting hole in a plane perpendicular to the insertion direction of the connecting portion into the connecting hole is formed such that the length in the vertical direction perpendicular to the extension direction of the blade body is greater than the length in the horizontal direction, which is the extension direction of the blade body held by the razor head. This is the mounting body for the razor head.

[0009] Conventionally, the mounting body (including the gripping part) that detachably connects the razor head has a configuration in which the connecting hole is necessarily long in the lateral direction, because the razor head has a shape that is long in the lateral direction, which is the direction in which the blade extends. However, when the connecting hole of the mounting body is long in the lateral direction, the part of the mounting body that is long in the lateral direction is also long in the lateral direction, so the mounting body can sometimes hinder the rotation of the razor head when the razor head rotates (tilts) around the axis in which the mounting body (gripping part) extends to perform a swivel motion. In the above configuration, the connecting hole of the mounting body is deliberately made to be longer in the vertical direction than in the lateral direction, so it is possible to prevent the mounting body from hindering the rotation of the razor head when the razor head rotates (tilts) around the axis in which the mounting body extends to perform a swivel motion.

[0010] Furthermore, the above configuration allows for a relatively simple connection hole for the mounting body, thus simplifying the overall structure of the mounting body. For example, even if the mounting body is made of a single material such as metal or resin, sufficient attachment and detachment performance can be achieved. Therefore, depending on the materials used, it is possible to create a mounting body that is less prone to damage and can be used for a long period of time, or that is easy to recycle after use, thus making effective use of resources. Moreover, by publishing or distributing the design drawings of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes possible for individuals to relatively easily manufacture their own mounting bodies, which reduce resource waste, due to the simple structure of the mounting body. Furthermore, since the gripping part does not necessarily have to be specifically for razors, it is possible to create a configuration that functions as a razor simply by connecting the mounting body to, for example, the lever part of a long-handled razor or nail clippers.

[0011] In the mounting body of the razor head described above, preferably, The connecting hole is formed such that, when the razor head and the mounting body are connected, an operating part (65) that is operated to detach the razor head from the connecting hole protrudes from the opening of the connecting hole on the side opposite to the blade body.

[0012] In the above-described mounting configuration, the operating part protrudes from the side of the connecting hole opposite to the blade side, allowing the user to easily detach the razor head from the mounting body by operating the operating part. Furthermore, because the connecting hole is elongated vertically, the operating part can also be made elongated vertically. With this elongated vertical operating part, compared to an operating part that is elongated horizontally, when the user operates the operating part with their index finger or thumb while gripping the razor, the direction in which the finger extends and the vertical direction of the elongated operating part are the same as the direction in which the gripping part of the razor extends, making it easier for the user to operate. In addition, when gripping the mounting body (grip) and operating the operating part with the index finger or thumb, the shape allows the user's force to be easily transmitted to the operating part, making it possible to detach the razor head from the mounting body with less force.

[0013] In the mounting body of the razor head described above, preferably, The connecting hole is provided with a stepped surface (23) recessed from the outer edge surface of the mounting body, which can engage a disengagement portion (64) whose state changes between a locked state in which the razor head can be locked in the connecting hole by operation of the operating portion and a disengagement state in which the razor head can be released from the connecting hole.

[0014] In mounting bodies (including gripping parts) that detachably connect the razor head, the part that locks and connects the razor head is close to the hand and skin, which can cause the razor head to accidentally detach from the mounting body. In contrast, the mounting body with the above configuration has a stepped surface that can lock the locking part recessed one step from the outer edge surface of the mounting body. As a result, the locking part is covered by the connecting hole and is not exposed, so even if the user's hand or skin accidentally comes into contact with the operating part, the movement of the locking part is restricted inside the connecting hole, preventing the locking of the locking part from being released. This makes it possible to provide a razor that makes it easy to attach and detach the razor head using the cantilevered spring and operating part of the razor head, while preventing the razor head from accidentally detaching.

[0015] In the mounting body of the razor head described above, preferably, Said connecting hole has a connecting surface connecting said outer edge surface and said stepped surface, and is formed so as to cover the entire portion of said engagement / disengagement portion facing said connecting surface in the extending direction of said blade body.

[0016] According to the mounting body with the above configuration, since the side of the engagement / disengagement portion is covered by the connecting hole, even if a user accidentally touches the operation portion during use, it can be more effectively prevented that the locking is released due to the movement of the engagement / disengagement portion and the razor head falls off.

[0017] In the above razor head mounting body, preferably, The mounting body further comprises a connecting mechanism (71, 73) provided at a lower end for connecting with a rod-shaped member (72).

[0018] According to the mounting body with the above configuration, instead of a dedicated razor grip, other rod-shaped members can be used as the grip. For example, used chopsticks, toothbrushes, writing instruments, or wood can be used as the rod-shaped member. When such a used rod-shaped member is used together with the mounting body, items around the user can be used as the grip of the razor. This eliminates the need to manufacture a dedicated razor grip, making it possible to reduce resource consumption.

[0019] One aspect of the present invention is: A razor (1) comprising: a razor head (3); and a mounting body (2) for said razor head, said mounting body having a connecting hole (25) for detachably connecting said razor head, said razor head (3) comprises: a blade assembly (4) holding a blade body (41), and a connecting portion (6) inserted into said connecting hole, said connecting hole is a through hole into which said connecting portion is inserted, a cross-section of said connecting hole on a plane orthogonal to the insertion direction of said connecting portion into said connecting hole is formed such that the length in a vertical direction orthogonal to the extending direction of the blade body is larger than the length in a horizontal direction that is the extending direction of the blade body held by said razor head, which is a razor.

[0020] In the razor with the above configuration, the connecting hole of the mounting body is intentionally made longer in the vertical direction than in the horizontal direction. This prevents the mounting body from obstructing the rotation of the razor head when the razor head rotates (tilts) around the direction in which the mounting body extends as an axis to perform a swivel motion.

[0021] Furthermore, the above configuration allows for a relatively simple connection hole for the mounting body, thus simplifying the overall structure of the mounting body. For example, even if the mounting body is made of a single material such as metal or resin, sufficient attachment and detachment performance can be achieved. Therefore, depending on the materials used, it is possible to create a mounting body that is less prone to damage and can be used for a long period of time, or that is easy to recycle after use, thus making effective use of resources. Moreover, by publishing or distributing the design drawings of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes possible for individuals to relatively easily manufacture their own mounting bodies, which reduce resource waste, due to the simple structure of the mounting body. Furthermore, since the gripping part does not necessarily have to be dedicated to razors, it is possible to create a configuration that functions as a razor simply by connecting the mounting body to, for example, the lever part of a long-handled razor or nail clippers.

[0022] In the above-mentioned razor, preferably, The connecting portion (6) is an operating portion provided on the opposite side of the exposed side of the blade body, and includes an operating portion (65) that is operated when detaching the razor head from the connecting hole. The connecting hole is formed such that, when the razor head and the mounting body are connected, the operating part protrudes from the opening of the connecting hole on the side opposite to the blade body.

[0023] In the razor with the above configuration, the operating part protrudes from the opposite side of the connecting hole from the blade side, allowing the user to easily detach the razor head from the mounting body by operating the operating part. Also, because the connecting hole is elongated vertically, the operating part can also be made elongated vertically. With this elongated vertical operating part, compared to an operating part that is elongated horizontally, when the user operates the operating part with their index finger or thumb while holding the razor, the direction in which the finger extends and the vertical direction of the elongated operating part are the same as the direction in which the gripping part of the razor extends, making it easier for the user to operate. In addition, when the user grips the mounting body (grip part) and operates the operating part with their index finger or thumb, the shape allows the user's force to be easily transmitted to the operating part, making it possible to detach the razor head from the mounting body with less force.

[0024] In the above-mentioned razor, preferably, The connecting portion (6) further includes a disengaging portion (64) that changes state between a locked state in which the razor head can be locked in the connecting hole and a disengaged state in which the razor head can be released from the connecting hole by operation of the operating portion. The connecting hole is provided with a stepped surface (23) that is recessed from the outer edge surface of the mounting body, which can lock the engaging portion.

[0025] In the razor with the above configuration, the stepped surface that can lock the engagement / disengagement part is recessed one step from the outer edge surface of the mounting body. As a result, the engagement / disengagement part is covered by the connecting hole and is not exposed, so even if the user's hand or skin accidentally comes into contact with the operating part, the movement of the engagement / disengagement part is restricted inside the connecting hole, preventing the engagement / disengagement part from being released. This makes it possible to provide a razor that makes it easy to attach and detach the razor head with the cantilevered spring and operating part of the razor head, while preventing the razor head from accidentally falling off.

[0026] In the above-mentioned razor, preferably, The aforementioned connecting portion (6) is A guide portion (62) extending from the side opposite the exposed side of the blade body and held by the mounting body, The blade body further comprises a cantilevered spring (63) extending to the opposite side of the exposed side, The operating section is provided on the free end side of the cantilevered spring.

[0027] In the razor configuration described above, a cantilevered spring is provided at the connection point. By utilizing the elastic deformation of the spring to change the locking state of the locking / detaching part, a configuration that allows the razor head to be attached to and detached from the mounting body can be constructed relatively easily.

[0028] In the above-mentioned razor, preferably, The cantilevered spring is provided below the lower end of the blade assembly.

[0029] With the razor configuration described above, the distance between the connection point between the operating part and the cantilevered spring and the upper end of the operating part can be increased. This allows for a greater distance from the point of force application to the fulcrum during operation, making it possible to attach and detach the razor head to the mounting body with less force.

[0030] In the above-mentioned razor, preferably, The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed to cover the entire portion of the engaging / disengaging part that faces the connecting surface in the extending direction of the blade.

[0031] With the razor configuration described above, the side of the engagement / disengagement part is covered by a connecting hole, which makes it possible to more effectively prevent the razor head from falling off by the engagement / disengagement part moving and releasing the lock even if the user accidentally touches the operating part during use.

[0032] In the above-mentioned razor, preferably, The mounting body further includes a connecting mechanism (71, 73) provided at its lower end for connecting to a rod-shaped member (72).

[0033] With the razor configuration described above, it becomes possible to use other rod-shaped members as the handle of the razor instead of a dedicated handle. For example, used chopsticks, toothbrushes, writing implements, or wood can be used as the rod-shaped member. By using such used rod-shaped members together with the mounting body, it becomes possible to use something that is around the user as the handle of the razor. This eliminates the need to create a dedicated handle for the razor, and reduces the use of resources.

[0034] In the above-mentioned razor, preferably, The razor head further comprises an elastic support (5) provided on the side opposite to the exposed side of the blade, The elastic support is, A connecting part (5c) that connects the blade assembly and the connecting part, It has a pair of flexible parts (5b) that extend from the connecting part in a left-right direction along the extending direction of the blade body, and whose ends are connected to the blade assembly body.

[0035] With the razor configuration described above, the pivoting function is provided on the razor head side, eliminating the need for a pivoting function in the mounting body. This makes it easier to create a relatively simple mounting body while still providing a pivoting razor. As a result, it becomes easier to create a mounting body made from a single material that is less prone to breakage, can be used for a long period of time, and is easy to recycle after use, thus making efficient use of resources. Furthermore, by publishing or distributing the design drawings of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes relatively easy for individuals to manufacture their own mounting bodies that avoid wasting resources. In addition, since the mounting body does not necessarily have to be dedicated to razors, it becomes easy to create a configuration that functions as a razor simply by attaching the mounting body to, for example, the lever part of a long-handled razor or nail clippers.

[0036] One means of the present invention is, A razor head (3) that is detachably connected to a connecting hole in the mounting body (2) of the razor head, A blade assembly body (4) that holds the blade body (41), It comprises a connecting portion (6) that is inserted into the connecting hole, The connecting portion is an operating portion provided on the opposite side of the exposed side of the blade body, and has an operating portion (65) that is operated when detaching the razor head from the connecting hole. The operating section is formed such that its length in the vertical direction perpendicular to the extension direction of the blade is greater than its length in the horizontal direction, which is the extension direction of the blade. It's a razor head.

[0037] In the razor head configuration described above, the operating section is intentionally made longer in the vertical direction than in the horizontal direction. As a result, the connecting hole in the mounting body into which the operating section is inserted is also longer in the vertical direction than in the horizontal direction. This prevents the mounting body from obstructing the rotation of the razor head when the razor head rotates (tilts) around the axis in which the mounting body extends to perform a swivel motion.

[0038] Furthermore, by adopting the razor head configuration described above, the connection holes of the mounting body can be made relatively simple, allowing for a simpler overall structure for the mounting body. For example, even if the mounting body is made of a single material such as metal or resin, sufficient attachment and detachment performance can be achieved. Therefore, depending on the materials used, it is possible to create a mounting body that is less prone to damage and can be used for a long period of time, or that is easy to recycle after use, thus making effective use of resources. Moreover, by publishing or distributing the design drawings of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes relatively easy for individuals to manufacture their own mounting bodies, which are simple in structure and thus avoid wasting resources. Furthermore, since the gripping part does not necessarily have to be dedicated to razors, it is possible to create a configuration that functions as a razor simply by connecting the mounting body to, for example, the lever part of a long-handled razor or nail clippers.

[0039] In the above-mentioned razor head, preferably, The operating section protrudes from the opening of the connecting hole on the side opposite to the blade when the razor head and the mounting body are connected.

[0040] In the razor head configuration described above, the operating part protrudes from the opposite side of the connecting hole from the blade body, allowing the user to easily detach the razor head from the mounting body by operating the operating part. Furthermore, because the operating part is elongated vertically, compared to a design where the operating part is elongated horizontally, when the user operates the operating part with their index finger or thumb while holding the razor, the direction in which the finger extends and the vertical direction of the elongated operating part are the same as the direction in which the gripping part of the razor extends, making it easier for the user to operate. In addition, when the user grips the mounting body (grip) and operates the operating part with their index finger or thumb, the shape allows the user's force to be easily transmitted to the operating part, making it possible to detach the razor head from the mounting body with less force.

[0041] In the above-mentioned razor head, preferably, The connecting portion further includes a locking / unlocking portion (64) that changes state between a locked state in which the razor head can be locked in the connecting hole and an unlocked state in which the razor head can be released from the connecting hole by operation of the operating portion.

[0042] In the above-mentioned razor head, preferably, The aforementioned connection part is A guide portion (62) extending from the side opposite the exposed side of the blade body and held by the mounting body, The blade body further comprises a cantilevered spring (63) extending to the opposite side of the exposed side, The operating section is provided on the free end side of the cantilevered spring.

[0043] In the razor head configuration described above, a cantilevered spring is provided at the connection point. By utilizing the elastic deformation of the spring to change the locking state of the locking and detaching part, a configuration that allows the razor head to be attached to and detached from the mounting body can be constructed relatively easily.

[0044] In the above-mentioned razor head, preferably, The cantilevered spring is provided below the lower end of the blade assembly.

[0045] With the razor configuration described above, the distance between the connection point between the operating part and the cantilevered spring and the upper end of the operating part can be increased. This allows for a greater distance from the point of force application to the fulcrum during operation, making it possible to attach and detach the razor head to the mounting body with less force.

[0046] In the above-mentioned razor head, preferably, The blade body further comprises an elastic support (5) provided on the opposite side of the exposed side, The elastic support is, A connecting part (5c) that connects the blade assembly and the connecting part, It has a pair of flexible parts (5b) that extend from the connecting part in a left-right direction along the extending direction of the blade body, and whose ends are connected to the blade assembly body.

[0047] With the razor head configuration described above, the pivoting function is provided on the razor head side, eliminating the need for a pivoting function in the mounting body. This makes it easier to create a relatively simple overall mounting body while still providing a razor with a pivoting function. As a result, it becomes easier to create a mounting body made from a single material that is less prone to breakage, can be used for a long period of time, and is easy to recycle after use, thus making efficient use of resources. Furthermore, by publishing or distributing the design drawings of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes relatively easy for individuals to manufacture their own mounting bodies that avoid wasting resources. In addition, since the mounting body does not necessarily have to be dedicated to razors, it becomes easy to create a configuration that functions as a razor simply by connecting the mounting body to, for example, the lever part of a long-handled razor or nail clippers.

[0048] One means of the present invention is, A mounting body (2) for the razor head that is connected to the razor head that holds the blade, It includes connecting mechanisms (71, 73) for connecting to rod-shaped members that are not formed for the aforementioned mounting body, This is the mounting body for the razor head.

[0049] In the above-described mounting system, instead of a grip specifically formed for the razor or mounting system, a rod-shaped member such as a used chopstick, toothbrush, writing instrument, or piece of wood can be used as the grip. By using such a used rod-shaped member together with the mounting system, it becomes possible to use something readily available to the user as the grip for the razor. This eliminates the need to create a grip specifically for the razor, thereby reducing resource consumption.

[0050] The connecting mechanism of the above-mentioned mounting body may have a clamping portion (71a) that clamps the rod-shaped member. In a configuration with such a connecting mechanism, it becomes possible to use a rod-shaped member having a relatively wide range of diameters in place of the gripping portion.

[0051] The connecting mechanism of the above-mentioned mounting body may have an insertion hole into which the rod-shaped member is inserted. With such a connecting mechanism, it becomes possible to use a rod-shaped member that is not specifically for razors in place of the gripping part of the razor, with a simple configuration. [Brief explanation of the drawing]

[0052] [Figure 1] Figure 1 is a perspective view of the razor of the embodiment, seen from the back. [Figure 2] Figure 2 is a perspective view of the razor of the embodiment, seen from the front. [Figure 3] Figure 3 is an exploded perspective view of the razor according to the embodiment. [Figure 4] Figure 4 is a side view of the razor according to the embodiment. [Figure 5] Figure 5 is a cross-sectional view of the razor according to the embodiment. [Figure 6] Figure 6 is an exploded cross-sectional view of the razor according to the embodiment. [Figure 7] Figure 7 is a cross-sectional view of the razor in the pivoting state according to the embodiment. [Figure 8] Figure 8 is a perspective view of the connecting hole of the mounting body of the embodiment, seen from the front side. [Figure 9] Figure 9 is a perspective view of the connecting hole of the modified mounting body, seen from the front. [Figure 10] Figure 10 is a perspective view of the modified razor, seen from the front. [Figure 11] Figure 11 is a perspective view of the modified razor, seen from the front. [Figure 12] Figure 12 is a schematic side view showing a modified razor. [Modes for carrying out the invention]

[0053] One embodiment of the present invention features a connecting mechanism between the razor head and the mounting body, which facilitates the attachment and detachment of the razor head to the mounting body while preventing the razor head from accidentally falling off. Furthermore, even with a simple overall structure for the mounting body, sufficient attachment and detachment performance can be achieved, resulting in a mounting body that is less prone to damage and easy to recycle.

[0054] The razor of the present invention will be described in detail with reference to the drawings. However, the embodiments and modifications described below are merely examples of the present invention and are not intended to limit the technical scope of the invention. In each drawing, the same components are denoted by the same reference numerals.

[0055] Each drawing in this specification shows the x-axis, y-axis, and z-axis. When the blade assembly is not pivoting, the axis extending in the direction in which the blade body is extended is defined as the "y-axis," and the axis extending parallel to the surface contact surface of the blade body at this time is defined as the "x-axis." The axis extending perpendicular to both the "x-axis" and "y-axis" is defined as the "z-axis." The x-axis, y-axis, and z-axis form a three-dimensional Cartesian coordinate system in a left-handed system. The direction of the arrow on the x-axis is sometimes called the x-axis+ side, and the direction opposite to the arrow is sometimes called the x-axis- side, and the same applies to the other axes. The z-axis+ side and z-axis- side are sometimes called the "back side" and "front side," respectively. The y-axis+ side and y-axis- side are sometimes called the "right side" and "left side," respectively. The x-axis+ side and x-axis- side are sometimes called the "upper side" and "lower side," respectively. In addition, the x-axis direction is sometimes called the vertical direction. The y-axis direction is sometimes called the horizontal direction. The z-axis direction is sometimes referred to as the thickness direction.

[0056] <1. Embodiments> Figure 1 is a perspective view of the razor 1 of this embodiment, seen from the back. Figure 2 is a perspective view of the razor 1, seen from the front. Figure 3 is an exploded perspective view of the razor 1. Figure 4 is a side view of the razor 1. Figure 5 is a cross-sectional view of the razor 1. Figure 6 is an exploded cross-sectional view of the razor 1. Figure 7 is a cross-sectional view of the razor 1 with the razor head tilted to its maximum angle. Figure 8 is a perspective view of the mounting body's connecting hole, seen from the front.

[0057] As shown in Figure 1 and other figures, the razor 1 is composed of a mounting body 2 and a razor head 3. In this specification, the configuration having a connecting hole 25 for attaching the razor head 3 is referred to as the "mounting body," which includes a gripping portion that is held by the user when the razor 1 is used, and mounting members that can be attached to the gripping portion. In the embodiment, a configuration in which the mounting body 2 is the gripping portion is described as an example, but the invention is not limited to this.

[0058] <Mounting unit 2> The mounting body 2 has a connecting hole 25 for detachably connecting the razor head 3. The connecting hole 25 is a through hole having an opening 25a on the back side and an opening 25b on the front side. The connecting hole 25 is formed to be longer in the vertical direction than in the horizontal direction. In this embodiment, the mounting body 2 serves as a gripping part that the user holds when using the razor 1, and extends along the x-axis with a predetermined inclination. The inclination angle of the mounting body 2 with respect to the x-axis is approximately 0 to 30°, but is not limited to this. The mounting body 2 is formed from a single material, such as a hard resin such as ABS resin, but is not limited to this, and materials other than hard resin, such as metal, wood, bamboo, or compressed and solidified paper, may be used. Furthermore, the mounting body 2 does not necessarily have to be formed from a single component.

[0059] The mounting body 2 has a connecting surface 22, a stepped surface 23, an inner lower surface 24, and a projection 2a inside the connecting hole 25. The stepped surface 23 is a surface formed along the xy plane, recessed one step from the outer edge surface 21 of the mounting body 2. The connecting surface 22 is a surface formed along the yz plane that connects the outer edge surface 21 and the stepped surface 23. The inner lower surface 24 is a surface formed on the lower side of the connecting hole 25. As shown in Figure 5 and other figures, the inner lower surface 24 has a portion that abuts the lower surface of the cantilevered spring 63 and an inclined surface that slopes downward from that portion toward the front side. This inclined surface is the portion that the lower end 64a of the engagement / disengagement part 64 abuts when inserting the guide part 62, the cantilevered spring 63, the engagement / disengagement part 64, and the operating part 65 into the connecting hole 25 to connect the mounting body 2 to the razor head 3. Because the lower surface 24 inside the connecting hole 25 is inclined in this way, the hole has a shape that tapers vertically from the front side to the back side.

[0060] The projections 2a are formed in pairs at opposing positions in the y-axis direction, projecting from the z-axis+ side surface of the connecting hole 25 toward the z-axis- side surface. When the razor head 3 is connected to the mounting body 2, the projections 2a face the back end faces 6a of the right plate portion 62b and the left plate portion 62c of the razor head 3. In this embodiment, the projections 2a are configured not to contact the back end faces 6a of the right plate portion 62b and the left plate portion 62c, but they may be configured to contact them.

[0061] Furthermore, the mounting body 2 may not be a gripping part, but rather a member that can be connected to a rod-shaped member that functions as a gripping part. In this case, the mounting body 2 may have a connecting mechanism for connecting to the rod-shaped member. The connecting mechanism may, for example, clamp the rod-shaped member, be a cap-shaped part with an insertion hole into which the rod-shaped portion of the rod-shaped member can be inserted, or be something else. For example, used chopsticks, toothbrushes, writing instruments, or wood can be used as the rod-shaped member. By using such a used rod-shaped member together with the mounting body 2, it becomes possible to use something that is already around the user as the gripping part of the razor, without having to create a new gripping part for the razor. By using such a used rod-shaped member, it becomes possible to reduce resource consumption as there is no need to create a gripping part specifically for the razor.

[0062] <Razor head 3> As shown in Figure 6 and other figures, the razor head 3 is composed of a blade assembly 4, an elastic support 5, and a connecting part 6.

[0063] <Blade assembly with 4 blades> The blade assembly 4 comprises five blades 41 and a frame 42 that holds these blades 41. The blades 41 extend along the y-axis. The front end faces of the blades 41 are exposed to the front side as cutting edges. The surfaces including the cutting edges of the multiple blades 41 form the skin contact surfaces that come into contact with the user's skin. The blades 41 are biased toward the front side to prevent excessive pressure from being applied to the user's skin. The number of blades 41 can be changed as needed.

[0064] The frame 42 is formed of a hard resin such as ABS resin, but is not limited to this. In this embodiment, the frame 42 is formed by connecting multiple members. However, the frame 42 may be formed of a single member. The frame 42 has an opening that is open on the front side, and the cutting edge of the blade body 41 is exposed from this opening. A restricting portion 43 is provided on the back side of the frame 42, extending toward the back side. The restricting portion 43 restricts the tilting of the blade assembly 4 beyond a certain point.

[0065] <Elastic support 5> The elastic support 5 is made of a flexible material such as a soft resin or rubber, and consists of a connecting portion 5c, a flexible portion 5b, and a pair of left and right connecting portions 5d. The elastic support 5 is provided on the back side of the blade assembly 4. The connecting portion 5c of the elastic support 5 is located on the back side of the central part of the blade assembly 4 and is connected to the blade assembly 4. A pair of flexible portions 5b extend from the connecting portion 5c to the left and right. The pair of flexible portions 5b are connected to the frame 42 by left and right connecting portions 5d. The left and right connecting portions 5d are fixed to the frame 42, and the connecting portion 5c is connected to the frame 42 so as to be tiltable mainly in the xz plane. As the flexible portion 5b of the elastic support 5 flexes, the blade assembly 4 becomes tiltable relative to the mounting body 2, and this causes the skin contact surface of the blade 41 to tilt, allowing the razor 1 to perform a pivoting function.

[0066] The upper end surface 5a of the elastic support 5 is an inclined surface that slopes downward as it approaches the front side. The tilting of the inclined blade assembly 4 is restricted by contact with the upper end surface 5a of the elastic support 5. In other words, the upper end surface 5a of the elastic support 5 acts as a tilting restriction mechanism that restricts the tilting of the blade assembly 4 beyond a certain point. As shown in Figure 7, the inclined surface of the upper end surface 5a of the elastic support 5 has an inclination angle at which it makes surface contact with the contact surface 42a of the blade assembly 4 when it comes into contact with the blade assembly 4.

[0067] <Connection part 6> The connecting portion 6 is composed of a main body 61, a guide portion 62, a cantilevered spring 63, a locking / disengaging portion 64, an operating portion 65, and a plate-shaped portion 66. The guide portion 62, the cantilevered spring 63, the locking / disengaging portion 64, and the operating portion 65 are inserted into the connecting hole 25 when the razor head 3 is connected to the mounting body 2. The connecting portion 6 is made of a hard resin such as ABS resin. The connecting portion 6 is preferably made of a single member, but at least the cantilevered spring 63 and the locking / disengaging portion 64 are made to be elastically deformable.

[0068] The main body 61 is the upper and front-facing portion of the connecting portion 6, and is connected to the elastic support 5 and the guide portion 62. The guide portion 62 is located below the main body 61 and extends toward the back side. The guide portion 62 and the cantilevered spring 63 are provided such that their respective front-facing ends do not protrude beyond the front-facing edge 26 of the mounting body 2. In other words, in the connecting portion 6, components other than the main body 61 do not protrude beyond the front-facing edge 26 of the mounting body 2.

[0069] The guide portion 62 is composed of an upper plate portion 62a, a right plate portion 62b, and a left plate portion 62c. The upper plate portion 62a, the right plate portion 62b, and the left plate portion 62c form a U-shape in cross-section in the xy plane. The front portion of the guide portion 62 is formed to extend downward more than the back portion. In this embodiment, the back of the guide portion 62 is open, but it may also have a bottom surface. However, if the back of the guide portion 62 is open, there is no bottom surface in the position opposite the operating portion 65, which allows the operating portion 65 to undergo large elastic deformation, making it easier to attach and detach the razor head 3 to the mounting body 2. The upper plate portion 62a, the right plate portion 62b, and the left plate portion 62c of the guide portion 62 each face the inner surface of the connecting hole 25, and may come into contact with it. When the razor head 3 attempts to move relative to the mounting body 2 in the x-axis or y-axis direction, the guide portion 62 contacts the inner surface of the connecting hole 25, thereby restricting the movement. Similarly, when the razor head 3 attempts to rotate relative to the mounting body 2 in the xy-plane with the z-axis as the axis, the guide portion 62 contacts the inner surface of the connecting hole 25, thereby restricting the rotation.

[0070] The plate-shaped portions 66 are formed in pairs, projecting to the right and left from the right plate portion 62b and the left plate portion 62c of the guide portion 62, respectively. The front surface of the plate-shaped portion 66, together with the front end surfaces of the right plate portion 62b and the left plate portion 62c, forms a plane parallel to the xy plane. The back surface 66a of the plate-shaped portion 66 faces the front step surface 26a, which is recessed one step on the back side from the front edge portion 26 of the mounting body 2. When the razor head 3 is connected to the mounting body 2, the back surface 66a of the plate-shaped portion 66 and the front step surface 26a come into contact. This contact between the back surface 66a and the front step surface 26a restricts the movement of the razor head 3 in the z-axis direction relative to the mounting body 2, ensuring a stable connection between the mounting body 2 and the razor head 3 without rattling in the z-axis direction.

[0071] In this embodiment, the plate-shaped portion 66 contacts the mounting body 2 in the z-axis direction, thereby restricting the movement of the razor head 3 relative to the mounting body 2 in the z-axis direction. However, the mounting body 2 and the razor head 3 may be configured to contact each other in the z-axis direction at different points.

[0072] The cantilevered spring 63 is positioned below the lower end of the blade assembly 4 in the vertical direction (x-axis direction), with a portion of its front end spanning between the right plate portion 62b and the left plate portion 62c. The cantilevered spring 63 is formed to extend toward the rear side. The front end of the cantilevered spring 63 is a fixed end, and the rear end is a free end. An operating portion 65 extending in the vertical direction is provided at the rear end, which is the free end of the cantilevered spring 63. A locking / disengaging portion 64 is provided below the operating portion 65. The lower surface of the locking / disengaging portion 64 faces the connecting surface 22 and is designed not to protrude to the rear side from the opening 25a on the rear side of the connecting hole 25. That is, the side surface (y-axis direction surface) of the lower end 64a of the locking / disengaging portion 64 is covered by the mounting body 2.

[0073] The back surface of the operating section 65 is curved toward the back as it moves upward, and the area near its upper end becomes the pressing surface 65a. At least the pressing surface 65a of the operating section 65 is exposed on the back side of the connecting hole 25. The operating section 65 is formed to be longer in the vertical direction than in the horizontal direction.

[0074] <Attachment and detachment operation between mounting body 2 and razor head 3> In the locked state shown in Figure 5, where the connecting part 6 is inserted into and locked in the connecting hole 25, when the user presses the pressing surface 65a toward the z-axis, the operating part 65 and the cantilevered spring 63 elastically deform, causing the pressing surface 65a to move toward the z-axis, while the lower end 64a of the engagement / disengagement part 64 tilts toward the z-axis+ and moves toward the x-axis+. As a result, the engagement / disengagement part 64 is shifted toward the x-axis+ side (upper side) of the stepped surface 23 in the x-axis direction, and the engagement / disengagement part 64 crosses over the stepped surface 23 toward the z-axis- side (front side), releasing the locking state of the cantilevered spring 63 and the engagement / disengagement part 64, resulting in an unlocked state.

[0075] On the other hand, in the unlocked state where the connecting portion 6 of the razor head 3 is detached from the connecting hole 25 as shown in Figure 6, when connecting the razor head 3 to the mounting body 2, the user inserts the guide portion 62, cantilever spring 63, engagement / disengagement portion 64, and operating portion 65 of the razor head 3 into the connecting hole 25. At this time, the lower end 64a of the engagement / disengagement portion 64 abuts against the inclined surface of the lower surface 24 inside the hole, the upper plate portion 62a of the guide portion 62 abuts against the upper surface 27 inside the hole, the cantilever spring 63 bends toward the x-axis + side (upward), and the engagement / disengagement portion 64 moves toward the x-axis + side. Furthermore, the cantilevered spring 63 and the engagement / disengagement part 64 are inserted on the z-axis+ side (back side), and as the engagement / disengagement part 64 moves over the stepped surface 23 on the z-axis+ side (back side), the cantilevered spring 63, which was bending toward the x-axis+ side (upward side), moves toward the x-axis- side (downward side) due to the biasing force, and the engagement / disengagement part 64 also moves toward the x-axis- side (downward side). As a result, the engagement / disengagement part 64 and the cantilevered spring 63 are locked to the stepped surface 23. This results in the locked state shown in Figure 5, and the mounting body 2 and the razor head 3 are connected.

[0076] <The pivoting motion of the blade assembly 4 relative to the mounting body 2> In the razor 1 of this embodiment, as already described, the blade assembly 4 is capable of a pivoting motion in which it tilts relative to the mounting body 2. The flexible portion 5b of the elastic support 5 attempts to elastically deform so that the blade assembly 4 becomes parallel to the surface with which the skin contact surface of the blade body 41 abuts. The range of the tilt angle of the blade assembly 4 is determined by the contact surface between the regulating portion 43 and the main body 61, and the contact surface 42a between the upper end portion 5a of the elastic support 5 and the frame 42. As shown in Figure 5, when the regulating portion 43 and the main body 61 abut, the upper end of the blade assembly 4 is restricted from tilting further downward, i.e., counterclockwise in Figure 5. As shown in Figure 7, when the contact surface 42a on the back side of the frame 42 abuts against the upper end portion 5a of the elastic support 5, the lower end of the blade assembly 4 is restricted from tilting further upward, i.e., clockwise in Figure 7.

[0077] <2. Variant> The razor 1, and the mounting body 2 and razor head 3 constituting the razor 1 described in the above embodiment, can be arbitrarily modified without departing from the spirit of the invention. Several modifications of the embodiments of the present invention will be described below.

[0078] <Example 1> The mounting body 2 may be configured to have a connecting hole 25m, as shown in Figure 9, instead of having a connecting hole 25 as in the embodiment.

[0079] The mounting body 2m has a surface portion 2b instead of the projection 2a of the mounting body 2. The surface portion 2b is a surface-like portion that protrudes one step from the z-axis+ side surface of the connecting hole 25m toward the z-axis- side. The surface portion 2b is provided at opposing positions in the y-axis direction. When the razor head 3 is connected to the mounting body 2m, the surface portion 2b may be in surface contact with the back end surfaces 6a of the right plate portion 62b and the left plate portion 62c of the razor head 3.

[0080] <Modification 2> The razor 1 of this embodiment can have a configuration similar to the modified example shown in Figure 10.

[0081] The razor 1m shown in Figure 10 is equipped with a mounting body 2n instead of the mounting body 2 of the embodiment. The mounting body 2n has a connecting clip 71 that is detachably connected to another rod-shaped member 72 by gripping the rod-shaped member 72. The connecting clip 71 is provided at the lower end of the mounting body 2n. By operating the operating part 71c, which is the point of force application, a pair of clamping parts 71a biased in the closing direction by a spring can be opened and closed, thereby enabling the rod-shaped member 72 to be clamped at the lower end 71b of the clamping parts 71a. Any rod-shaped member 72 can be used as long as it has a diameter that can be clamped by the clamping parts 71a. The upper end of the clamping part 71a opens and closes in accordance with the lower end 71b.

[0082] <Variation 3> The razor 1 of this embodiment can have a configuration similar to the modified example shown in Figure 11.

[0083] The razor 1n shown in Figure 11 is equipped with a mounting body 2o instead of the mounting body 2 of the embodiment. The mounting body 2o has a connecting cap 73 which is detachably connected to another rod-shaped member 72 by inserting the rod-shaped member 72 into the connecting cap 73. The connecting cap 73 is a cylindrical member having an insertion hole 73b at its lower end and a slit 73a formed from the lower end toward the upper side. The rod-shaped member 72 is inserted into the insertion hole 73b at the lower end. The inner diameter of the insertion hole 73b of the connecting cap 73 can be arbitrarily changed depending on the diameter of the rod-shaped member 72 that is intended to be connected, but for example, it may be sized to match the diameter of a pencil. The inner diameter of the insertion hole 73b of the connecting cap 73 may become smaller toward the upper side. The mounting body 2o and the rod-shaped member 72 are connected when the rod-shaped member 72 is inserted through the insertion hole 73b at the lower end of the connecting cap 73. The connecting cap 73 has a slit 73a, which allows for the insertion and connection of a rod-shaped member 72 having a diameter slightly larger than the inner diameter of the insertion hole 73b. However, the slit 73a is not an essential component of the connecting cap 73, and it may be configured without it.

[0084] Furthermore, the connecting mechanism for connecting to the rod-shaped member is not limited to those described in the above modifications 2 and 3, and other configurations may be used. For example, a magnet, hook-and-loop fastener, screw fastener, or band-wrapping configuration may be used as the connecting mechanism.

[0085] In addition, in the modified versions 2 and 3, the razors 1m and 1n may have mounting bodies 2n and 2o that are not detachably connected to the razor head 3, but rather non-detachably connected. That is, the mounting bodies 2n and 2o may be formed integrally with the razor head 3.

[0086] <Modification 4> The razor 1 of this embodiment can have a configuration similar to the modified example shown in Figure 12.

[0087] The razor 1o shown in Figure 12 comprises a razor head 3m and a mounting body 2p. The razor head 3m has a connecting part 6m in place of the connecting part 6. The connecting part 6m has magnets 67a and 67b positioned near its upper and lower ends. The mounting body 2p is entirely made of a ferromagnetic metal and has a connecting hole 25n. When connecting the razor head 3m to the mounting body 2p, the operating part 65m of the razor head 3m is inserted into the connecting hole 25n of the mounting body 2p, and the magnets 67a and 67b come into contact with the mounting body 2p, causing the mounting body 2p and the magnets 67a and 67b to attract and connect. When detaching the razor head 3m from the mounting body 2p, the user presses the end of the operating part 65m with a force greater than the attractive force between the mounting body 2p and the magnets 67a and 67b, causing the magnets 67a and 67b to separate from the mounting body 2p.

[0088] In the above modified example 4, the mounting body 2p may be made of a ferromagnetic metal or the like only in the portion facing the magnets 67a and 67b, and the rest may be made of a different material. Alternatively, the portion facing the magnets 67a and 67b may be provided with a magnet that attracts the magnets 67a and 67b, respectively. Alternatively, the mounting body 2p may be equipped with a magnet, and the connecting portion 6m may be provided with a ferromagnetic metal portion or the like instead of the magnets 67a and 67b. In this case, the entire connecting portion 6m may be made of a ferromagnetic material.

[0089] Furthermore, although the razor head 3 in the embodiment had an elastic support 5 and a pivoting function, the razor head 3 does not necessarily have a pivoting function.

[0090] In this embodiment, the connecting hole 25 may be formed so as to cover the side surface (y-axis direction surface) of the guide portion 62 and the cantilevered spring 63 on the front side, below the lower end of the blade assembly 4, so that the guide portion 62 and the cantilevered spring 63 are not exposed on the front side.

[0091] In this embodiment, the mounting body 2 functions as a gripping part, but the mounting body 2 may also function as a gripping part together with another member by being attached to that member.

[0092] The mounting body 2 of the embodiment may be molded by a 3D printer using 3D data for a 3D printer. In this case, the molding of the mounting body 2 by a 3D printer is performed by, for example, a step of extruding a material such as liquid resin to form the mounting body 2 based on input and stored data for a 3D printer, and a step of solidifying the extruded material. The present invention includes design data for a 3D printer for molding the mounting body 2 described in such an embodiment, a recording medium storing the design data, and a method for molding the mounting body 2.

[0093] It should be noted that the razors described in the embodiments and modifications are merely examples of configurations, and the scope of the present invention is not limited to these embodiments and modifications, but is broadly interpreted to include the scope that can be grasped by those skilled in the art based on a similar technical concept.

[0094] <3. Features of the present invention> The present invention, as described above with reference to the embodiments, has the following features. In the following description, for convenience, there are parts that refer to "razor 1" and "mounting body 2" as described in the embodiments, but the invention is not limited to razor 1 and mounting body 2 of the embodiments, but also includes modified razor blades 1m to 1o and mounting bodies 2m to 2p, etc. Similarly, the configurations other than razor blade 1 and mounting body 2 are not limited to the configurations of the embodiments and do not exclude modified configurations.

[0095] Conventionally, the mounting body (including the gripping part) that detachably connects the razor head has a configuration in which the connecting hole is necessarily long in the lateral direction, because the razor head has a shape that is long in the lateral direction, which is the direction in which the blade extends. However, when the connecting hole of the mounting body is long in the lateral direction, the part of the mounting body that is long in the lateral direction is also long in the lateral direction, so the mounting body may hinder the rotation of the razor head when the razor head rotates (tilts) around the direction in which the mounting body (gripping part) extends as an axis. In the configuration of this embodiment, the connecting hole 25 of the mounting body 2 is deliberately made to be longer in the vertical direction than in the lateral direction, so that the mounting body 2 does not hinder the rotation of the razor head 3 when the razor head 3 rotates (tilts) around the direction in which the mounting body 2 extends as an axis.

[0096] Furthermore, in the razor 1, the operating part 65 protrudes from the opposite side of the connecting hole 25 from the blade body 41 side, allowing the user to easily detach the razor head 3 from the mounting body 2 by operating the operating part 65. Also, because the connecting hole 25 is elongated vertically, the operating part 65 can also be made elongated vertically. With this elongated vertical operating part 65, compared to an operating part 65 that is elongated horizontally, when the user operates the operating part 65 with the index finger or thumb of the hand holding the razor 1, the direction in which the finger extends and the vertical direction of the elongated operating part 65 are the same as the direction in which the gripping part of the razor 1 extends, making it easier for the user to operate. In addition, when the user grips the mounting body 2 (grip) and operates the operating part 65 with the index finger or thumb, the shape allows the user's force to be easily transmitted to the operating part 65, making it possible to detach the razor head 3 from the mounting body 2 with less force.

[0097] In conventional razors, which have a mounting body (including a gripping part) that detachably connects the razor head, the part that locks and connects the razor head is close to the hand and skin, so the razor head may accidentally detach from the mounting body. In contrast, the razor 1 of the present invention has a stepped surface 23 that can lock the locking / detaching part 64, which is provided inside a connecting hole 25 that is recessed one step from the outer edge surface 21 of the mounting body 2. As a result, the locking / detaching part 64 is not exposed from the connecting hole 25, and even if the user's hand or skin accidentally comes into contact with the operating part 65, the movement of the locking / detaching part 64 is restricted inside the connecting hole 25, preventing the locking of the locking / detaching part 64 from being released. This makes it possible to provide a razor 1 that makes it easy to attach and detach the razor head 3 using the cantilevered beam-shaped spring 63 and the operating part 65, while preventing the razor head 3 from accidentally detaching.

[0098] Furthermore, in the razor 1, the connecting hole 25 is formed to cover the entire portion of the engaging / disengaging part 64 that faces the connecting surface 22 in the lateral direction (y-axis direction). With this configuration, the side of the engaging / disengaging part 64 is covered by the connecting hole 25, making it possible to more effectively prevent the razor head 3 from falling off by the engaging / disengaging part 64 moving and releasing the lock even if the user accidentally touches the operating part 65 during use.

[0099] Furthermore, in a modified version of the razor 1, a connecting mechanism for connecting to a rod-shaped member 72 can be provided at the lower end of the mounting body 2. With such a razor 1, it becomes possible to use other rod-shaped members as the gripping part instead of a gripping part specifically for the razor. For example, used chopsticks, a toothbrush, a writing instrument, or wood can be used as the rod-shaped member 72. By using such a used rod-shaped member 72 together with the mounting body 2, it becomes possible to use something that is around the user as the gripping part of the razor. This eliminates the need to create a gripping part specifically for the razor, and reduces the use of resources.

[0100] Furthermore, the razor 1 is equipped with a guide section 62 and a cantilevered spring 63, with an operating section 65 provided on the free end side of the cantilevered spring 63. This configuration allows for a relatively simple setup in which the razor head 3 can be attached to and detached from the mounting body 2 by changing the locking state of the locking / detaching section 64 using the elastic deformation of the cantilevered spring 63.

[0101] Furthermore, in the razor 1, the cantilevered spring 63 is provided below the lower end of the blade assembly 4. This configuration allows for a longer distance between the connection between the operating part 65 and the cantilevered spring 63 and the pressing surface 65a of the operating part 65. As a result, the distance from the point of force application to the fulcrum during operation can be increased, making it possible to attach and detach the razor head 3 to the mounting body 2 with less force.

[0102] Furthermore, in the razor 1, the razor head 3 is equipped with an elastic support 5 having a connecting portion 5c and a pair of flexible portions 5b. This configuration allows the pivoting function to be provided on the razor head 3 side, eliminating the need for the mounting body 2 to have a pivoting function. As a result, it becomes easier to create a razor with a pivoting function while keeping the overall structure of the mounting body 2 relatively simple. Therefore, it becomes easier to create a mounting body 2 made from a single material that is less prone to breakage, can be used for a long period of time, and is easy to recycle after use, thus making efficient use of resources. In addition, by publishing or distributing the design drawings of the mounting body 2 or the data for manufacturing the mounting body 2 with a 3D printer, it becomes easier for individuals to relatively easily manufacture their own mounting body 2, thus avoiding waste of resources. Moreover, since the mounting body 2 does not necessarily have to be dedicated to razors, it becomes easy to create a configuration that functions as a razor simply by attaching the mounting body 2 to, for example, the lever part of a long-handled razor or nail clippers.

[0103] Furthermore, the razor or mounting body of Modified Examples 2 and 3 is configured to include a connecting mechanism for connecting to a rod-shaped member 72 that is not specifically formed for use with the razor or mounting body. With this configuration, the razor can be used with a rod-shaped member such as a used chopstick, toothbrush, writing instrument, or piece of wood instead of a handle. By using such a used rod-shaped member together with the mounting body, it becomes possible to use something that is readily available to the user as the handle of the razor. This eliminates the need to create a handle specifically for the razor, thereby reducing resource consumption.

[0104] For example, in the mounting body 2n as in the modified example 2, by providing a clamping portion 71a like the connecting clip 71, it becomes possible to use a rod-shaped member with a relatively wide range of diameters in place of the gripping portion.

[0105] For example, in the mounting body 2o as shown in Modification 3, by providing an insertion hole 73b, as in the connecting cap 73, it becomes possible to use a rod-shaped member that is not specifically for razors in place of the razor's gripping part with a simple configuration. [Industrial applicability]

[0106] The razor of the present invention is suitably applied as a razor that contributes to environmental protection. [Explanation of Symbols]

[0107] 1, 1m, 1n, 1o...Razor 2, 2m, 2n, 2o, 2p...Mounting body 21…Outer edge surface 22…Connection surface 23…Step surface 24…Bottom surface inside the hole 25, 25m, 25n…Connecting hole 26... Edge 26a... Front side stepped surface 27…Top surface inside the hole 3.3m... razor head 4…Blade assembly 41...Blade body 42...Frame 42a…Abutment surface 43…Regulatory Department 5…Elastic support 5a...Top end 5b...Flexible part 5c...Connection part 5d...Left and right connection part 6, 6m...connection part 61…Main part 62…Information Department 62a... Upper plate section 62b...Right plate section 62c…Left plate part 63... Cantilevered spring 64...Parts that are attached to the body 65, 65m...Operation unit 65a...Pressing surface 66...Plate-like part 67a, 67b... Magnets 71…Connecting clip 72…Rod-shaped member 73...Connecting cap

Claims

1. A mounting body for a razor head having a blade, having a connecting hole for detachably connecting a razor head having a blade, The connecting hole is a through hole into which the connecting portion of the razor head is inserted, The aforementioned connection part is An operating part that is operated when detaching the razor head from the connecting hole, The device includes a locking / unlocking section that changes state between a locked state in which the razor head can be locked in the connecting hole and an unlocked state in which the razor head can be released from the connecting hole by operation of the operating section, The connecting hole is formed such that the lower end of the engaging / disengaging portion does not protrude from the connecting hole in the insertion direction. Mounting body for the razor head.

2. The connecting hole is formed such that, when the razor head and the mounting body are connected, the operating part protrudes from the opening of the connecting hole on the side opposite to the blade body. The mounting body for the razor head according to claim 1.

3. The connecting hole has a stepped surface that is recessed from the outer edge surface of the mounting body, which can lock the engaging portion. The mounting body for the razor head according to claim 2.

4. The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed to cover the entire portion of the engaging / disengaging part that faces the connecting surface in the extending direction of the blade body. The mounting body for the razor head according to claim 3.

5. It further includes a connecting mechanism at the lower end for connecting to a rod-shaped member, A mounting body for a razor head according to any one of claims 1 to 4.

6. A razor comprising a razor head and a mounting body for the razor head having a connecting hole for detachably connecting the razor head, The razor head is, A blade assembly body that holds the blade, It comprises a connecting portion that is inserted into the connecting hole, The aforementioned connection part is An operating part that is operated when detaching the razor head from the connecting hole, The device includes a locking / unlocking section that changes state between a locked state in which the razor head can be locked in the connecting hole and an unlocked state in which the razor head can be released from the connecting hole by operation of the operating section, The connecting hole is a through hole into which the connecting portion is inserted, The connecting hole is formed such that the lower end of the engaging / disengaging portion does not protrude from the connecting hole in the insertion direction. razor.

7. The operating section is provided on the side opposite to the exposed side of the blade body. The connecting hole is formed such that, when the razor head and the mounting body are connected, the operating part protrudes from the opening of the connecting hole on the side opposite to the blade body. The razor according to claim 6.

8. The connecting hole has a stepped surface that is recessed from the outer edge surface of the mounting body, which can lock the engaging portion. The razor according to claim 7.

9. The aforementioned connection part is A guide portion extending from the side opposite the exposed side of the blade body and held by the mounting body, The blade body further comprises a cantilevered spring extending to the opposite side of the exposed side, The operating part is provided on the free end side of the cantilevered spring. The razor according to claim 8.

10. The cantilevered spring is provided below the lower end of the blade assembly. The razor according to claim 9.

11. The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed to cover the entire portion of the engaging / disengaging part that faces the connecting surface in the extending direction of the blade body. The razor according to any one of claims 8 to 10.

12. The mounting body further includes a connecting mechanism provided at its lower end for connecting to a rod-shaped member. The razor according to any one of claims 6 to 11.

13. The razor head further comprises an elastic support provided on the side opposite to the exposed side of the blade, The elastic support is, A connecting part that connects the blade assembly and the connecting part, It has a pair of flexible parts that extend from the connecting portion in a left-right direction along the extending direction of the blade body, and whose ends are connected to the blade assembly body, The razor according to any one of claims 6 to 12.

14. A razor head that is detachably connected to a connecting hole in the mounting body of the razor head, A blade assembly body that holds the blade, It comprises a connecting portion that is inserted into the connecting hole, The aforementioned connection part is An operating part provided on the opposite side of the exposed side of the blade body, which is operated when detaching the razor head from the connecting hole, The device includes a locking / unlocking section that changes state between a locked state in which the razor head can be locked in the connecting hole and an unlocked state in which the razor head can be released from the connecting hole by operation of the operating section, The connecting portion is formed such that the lower end of the engaging / disengaging portion does not protrude from the connecting hole in the insertion direction. Razor head.

15. The operating part protrudes from the opening of the connecting hole on the side opposite to the blade body when the razor head and the mounting body are connected. The razor head according to claim 14.

16. The aforementioned connection part is A guide portion extending from the side opposite the exposed side of the blade body and held by the mounting body, The blade body further comprises a cantilevered spring extending to the opposite side of the exposed side, The operating part is provided on the free end side of the cantilevered spring. The razor head according to claim 14.

17. The cantilevered spring is provided below the lower end of the blade assembly. The razor head according to claim 16.

18. The blade body is further provided with an elastic support on the opposite side of the exposed side, The elastic support is, A connecting part that connects the blade assembly and the connecting part, It has a pair of flexible parts that extend from the connecting portion in a left-right direction along the extending direction of the blade body, and whose ends are connected to the blade assembly body, A razor head according to any one of claims 14 to 17.

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