JP2022156973A - Razor, razor head, and razor head fitting body - Google Patents

Abstract

[PROBLEMS] To provide a razor having a razor head that can be attached to and detached from a mounting body, which has a suitable swinging function and is environmentally friendly. A razor comprising a razor head and a razor head mounting body having a connecting hole for detachably connecting the razor head, wherein the razor head is a blade assembly that holds a blade body. and a connecting portion inserted into the connecting hole, the connecting hole being a through-hole into which the connecting portion is inserted, the surface being perpendicular to the direction in which the connecting portion is inserted into the connecting hole. The cross section of the connecting hole in is formed such that the length in the vertical direction perpendicular to the extending direction of the blade held by the razor head is greater than the length in the horizontal direction, which is the extending direction of the blade held by the razor head. be. [Selection drawing] Fig. 1

Description

One aspect of the present invention relates to a razor, a razor head, and a razor head attachment.

In recent years, the 3Rs collectively refer to the three Rs: Reduce, which uses things with care and reduces waste; Reuse, which uses usable items repeatedly; and Recycle, which reuses waste as resources. is advocated. In addition, among the 17 goals of the SDGs (Sustainable Development Goals) adopted at the United Nations Summit, it is mentioned to ensure sustainable production and consumption patterns, and to reduce the generation of waste. A significant reduction is required. Under such circumstances, in the field of razors as well, it is required to promote the development of environment-friendly razors that satisfy the 3Rs.

By the way, Patent Literature 1 discloses an invention relating to a replaceable blade razor in which a replaceable blade can be detachably connected to a holder. Patent Document 2 discloses an oscillating razor in which a razor head to which a blade is attached can oscillate relative to the head of a holder against elasticity. Patent Documents 3 to 7 disclose inventions relating to razor heads configured to swing with respect to a handle.

JP 2015-77178 A Japanese Unexamined Patent Application Publication No. 2019-22601 Japanese Patent No. 6600762 Japanese Patent No. 6619534 U.S. Patent Application Publication No. 2014/0116211 U.S. Patent Application Publication No. 2015/0158192 U.S. Patent Application Publication No. 2013/0312272

However, it is difficult to say that the conventional razor has fully taken into consideration both environmental consideration and user comfort. Some of the razors provided with the conventional razor head described above have relatively favorable performance due to the swinging function, but there is still room for functional improvement. In addition, there was a part where it could not be said that consideration for the environment was sufficient.

An object of the present invention is to provide a razor that can solve the above problems.

In order to solve the above problems, the present invention provides the following means. In the following description, reference numerals and the like in the drawings may be added in parentheses in order to facilitate understanding of the invention, but each component of the invention is limited to these specific configurations. Instead, it should be interpreted broadly to the extent that a person skilled in the art can technically understand.

One means of the present invention is
A razor head attachment (2) having a connection hole (25) for detachably connecting a razor head (3),
The connecting hole is a through hole into which a connecting portion of the razor head is inserted,
The cross section of the connecting hole in the plane orthogonal to the direction of insertion of the connecting portion into the connecting hole is longer than the length in the horizontal direction, which is the extending direction of the blade held by the razor head. The longitudinal length perpendicular to the direction is formed larger,
A razor head attachment.

Conventionally, a mounting body (including a grip part) for detachably connecting a razor head has a shape that is elongated in the lateral direction, which is the direction in which the blade body extends, so that a connecting hole that is elongated in the lateral direction is inevitably formed. It was configured to have However, if the connecting hole of the mounting body is long in the horizontal direction, the relevant portion of the mounting body will also be long in the horizontal direction. When swinging, the mounting body sometimes interferes with the rotation of the razor head. In the above configuration, the connecting hole of the mounting body is intentionally longer in the vertical direction than in the horizontal direction. , the mounting body can be prevented from interfering with the rotation of the razor head.

Moreover, in the above configuration, the connection hole of the mounting body can be made relatively simple, so that the entire mounting body can be made simple. For example, even if the mounting body is formed of a single member such as only metal or only resin, sufficient attachment/detachment performance can be achieved. Therefore, depending on the material used, it is possible to obtain a mounting body that is resistant to breakage, can be used for a long period of time, and is easy to recycle after use, enabling effective use of resources. Furthermore, if the design drawing of the mounting body or the data for manufacturing the mounting body with a 3D printer is published or distributed, the mounting body has a simple configuration, so even an individual can create a self-made mounting body that saves resources. It can be manufactured relatively easily. Furthermore, since the grip does not necessarily have to be dedicated to a razor, it is possible to configure it to function as a razor simply by connecting the mounting body to, for example, a long-handled razor or a lever portion of a nail clipper.

Preferably, in the razor head attachment,
When the razor head and the mounting body are connected to each other, the connecting hole has an operating portion (65) which is operated when the razor head is separated from the connecting hole. It is formed so as to protrude from the opening on the opposite side.

In the mounting body configured as described above, the operation portion protrudes in the connecting hole on the side opposite to the blade body side, so that the user can easily detach the razor head from the mounting body by operating the operation portion. Moreover, since the connecting hole has a shape elongated in the vertical direction, the operation portion can also have a shape elongated in the vertical direction. In this way, when operating the operation part with a shape that is long in the vertical direction, compared to a shape that is long in the horizontal direction, when operating the operation part with the index finger or thumb of the hand that holds the razor, the direction in which the finger extends and the vertical direction are different. The vertical direction of the operating portion of the razor is the same as the direction in which the grip portion of the razor extends, making it easier for the user to operate. In addition, when the user grips the attachment (gripping part) and operates the operation part with the index finger or thumb, the user's force is easily transmitted to the operation part. It is possible to detach.

Preferably, in the razor head attachment,
The connecting hole changes 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 unlocked from the connecting hole by operating the operating portion. A stepped surface (23) recessed from the outer peripheral surface of the mounting body is provided so that the engaging/disengaging portion (64) can be locked.

Since the attachment body (including the grip) that detachably connects the razor head is close to the hands and skin at the part where the razor head is engaged and connected, the razor head may accidentally fall off from the attachment body. There is On the other hand, in the mounting body having the above structure, the step surface on which the engaging/disengaging portion can be locked is recessed from the outer edge surface of the mounting body. Therefore, the engaging/disengaging portion is covered with the connecting hole and is not exposed, and even if the user's hand or skin accidentally touches the operating portion, the movement of the engaging/disengaging portion is restricted inside the connecting hole, and the engagement/disengagement is prevented. It is possible to prevent the part from being unlocked. As a result, it is possible to provide a razor that can prevent the razor head from falling off unexpectedly while facilitating the attachment/detachment operation of the razor head by the configuration of the cantilever beam spring and the operating portion of the razor head.

Preferably, in the razor head attachment,
The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed so as to cover the entire portion of the engaging/disengaging portion that faces the connecting surface in the extending direction of the blade. be.

According to the mounting body having the above configuration, the side of the engaging/disengaging portion is covered with the connecting hole. It is possible to more effectively prevent the razor head from falling off due to the unlocking.

Preferably, in the razor head attachment,
It further comprises connecting mechanisms (71, 73) for connecting with the rod-shaped member (72) provided at the lower end.

According to the mounting body configured as described above, it is possible to use other rod-like members as the gripping portion instead of the gripping portion dedicated to the razor. For example, used chopsticks, toothbrushes, writing utensils, or wood can be used as stick-shaped members. By using such a worn-out rod-shaped member together with the mounting body, it becomes possible to use an object around the user as a grip portion for the razor. As a result, there is no need to create a razor-dedicated grip, and resource usage can be reduced.

One means of the present invention is
A razor (1) comprising a razor head (3) and a razor head mounting body (2) having a connecting hole (25) for detachably connecting the razor head,
Said razor head (3) comprises:
a blade assembly (4) holding a blade (41);
A connecting part (6) inserted into the connecting hole,
The connecting hole is a through hole into which the connecting portion is inserted,
The cross section of the connecting hole in the plane orthogonal to the direction of insertion of the connecting portion into the connecting hole is longer than the length in the horizontal direction, which is the extending direction of the blade held by the razor head. The longitudinal length perpendicular to the direction is formed larger,
is a razor.

In the razor with the above configuration, the connecting hole of the mounting body is intentionally longer in the vertical direction than in the horizontal direction, so that the razor head rotates (tilts) about the direction in which the mounting body extends, and swings. In this case, it is possible to prevent the mounting body from interfering with the rotation of the razor head.

Moreover, in the above configuration, the connection hole of the mounting body can be made relatively simple, so that the entire mounting body can be made simple. For example, even if the mounting body is formed of a single member such as only metal or only resin, sufficient attachment/detachment performance can be achieved. Therefore, depending on the material used, it is possible to provide a mounting body that is resistant to breakage and can be used for a long period of time, or that is easy to recycle after use and effectively utilizes resources. Furthermore, if the design drawing of the mounting body or the data for manufacturing the mounting body with a 3D printer is published or distributed, the mounting body has a simple configuration, so even an individual can create a self-made mounting body that saves resources. It can be manufactured relatively easily. Furthermore, since the grip does not necessarily have to be dedicated to a razor, it is possible to configure it to function as a razor simply by connecting the mounting body to, for example, a long-handled razor or a lever portion of a nail clipper.

In the above razor, preferably
The connection part (6) includes an operation part (65) which is an operation part provided on the opposite side of the exposed side of the blade body and is operated when the razor head is removed from the connection hole,
The connecting hole is formed so that the operating portion protrudes from an opening of the connecting hole on the side opposite to the blade side when the razor head and the mounting body are connected.

In the razor having the above structure, the operation portion protrudes from the connecting hole on the side opposite to the blade body side, so that the user can easily remove the razor head from the mounting body by operating the operation portion. Moreover, since the connecting hole has a shape elongated in the vertical direction, the operation portion can also have a shape elongated in the vertical direction. In this way, when operating the operation part with a shape that is long in the vertical direction, compared to a shape that is long in the horizontal direction, when operating the operation part with the index finger or thumb of the hand that holds the razor, the direction in which the finger extends and the vertical direction are different. The vertical direction of the operating portion of the razor is the same as the direction in which the grip portion of the razor extends, making it easier for the user to operate. In addition, when the user grips the attachment (gripping part) and operates the operation part with the index finger or thumb, the user's force is easily transmitted to the operation part. It is possible to detach.

In the above razor, preferably
The connecting portion (6) can be in a locked state in which the razor head can be locked in the connecting hole and in an unlocked state in which the razor head can be unlocked from the connecting hole by operating the operating portion. further comprising an engaging/disengaging portion (64) whose state changes at
The connecting hole is provided with a step surface (23) that is recessed from the outer edge surface of the mounting body and that can engage the engaging/disengaging portion.

In the razor having the above structure, the stepped surface on which the engaging/disengaging portion can be locked is recessed from the outer edge surface of the mounting body. Therefore, the engaging/disengaging portion is covered with the connecting hole and is not exposed, and even if the user's hand or skin accidentally touches the operating portion, the movement of the engaging/disengaging portion is restricted inside the connecting hole, and the engagement/disengagement is prevented. It is possible to prevent the part from being unlocked. As a result, it is possible to provide a razor that can prevent the razor head from falling off unexpectedly while facilitating the attachment/detachment operation of the razor head by the configuration of the cantilever beam spring and the operating portion of the razor head.

In the above razor, preferably
The connecting part (6) is
a guide portion (62) extending on the side opposite to the exposed side of the blade body and held by the mounting body;
a cantilever spring (63) extending opposite to the exposed side of the blade,
The operating portion is provided on the free end side of the cantilever spring.

In the razor with the above configuration, since the connection portion is provided with a cantilever spring, the razor head can be attached and detached from the attachment body by changing the engagement state of the engagement/disengagement portion using the elastic deformation of the spring. configuration can be configured relatively easily.

In the above razor, preferably
The cantilever spring is provided below the lower end of the blade assembly.

According to the razor having the above configuration, the distance between the connecting portion between the operating portion and the cantilever spring and the upper end of the operating portion can be increased. As a result, the distance from the point of force to the fulcrum during operation can be made longer, and the attachment and detachment of the razor head with respect to the mounting body can be made possible with less force.

In the above razor, preferably
The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed so as to cover the entire portion of the engaging/disengaging portion that faces the connecting surface in the extending direction of the blade. be.

According to the razor having the above configuration, the side of the engaging/disengaging portion is covered with the connecting hole. It is possible to more effectively prevent the razor head from coming off due to the release of the lock.

In the above razor, preferably
The mounting body further includes connecting mechanisms (71, 73) for connecting with the rod-like member (72) provided at the lower end.

According to the razor having the above configuration, it is possible to use another rod-shaped member as the grip portion of the razor instead of the grip portion dedicated to the razor. For example, used chopsticks, toothbrushes, writing utensils, or wood can be used as stick-shaped members. By using such a worn-out rod-shaped member together with the mounting body, it becomes possible to use an object around the user as a grip portion for the razor. As a result, there is no need to create a razor-dedicated grip, and resource usage can be reduced.

In the above razor, preferably
The razor head further comprises a resilient support (5) provided opposite the exposed side of the blade body,
The elastic support is
a connecting portion (5c) connecting the blade assembly and the connecting portion;
and a pair of flexible portions (5b) extending from the connecting portion in the left-right direction along the extension direction of the blade and having ends connected to the blade assembly.

According to the razor having the above configuration, the swinging function is provided on the razor head side, and there is no need to provide the swinging function in the mounting body. Facilitates simple configuration. Therefore, it is easy to construct the mounting body as a single material, which has characteristics such as being hard to be damaged and used for a long period of time, and being easy to recycle after use and effectively utilizing resources. In addition, by disclosing or distributing the design drawing of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes relatively easy for even an individual to manufacture a self-manufactured mounting body without wasting resources. In addition, since the mounting body does not necessarily have to be dedicated to a razor, it can be easily configured to function as a razor simply by connecting the mounting body to, for example, a long-handled razor or a lever portion of a nail clipper.

One means of the present invention is
A razor head (3) detachably connected to a connecting hole of a razor head mounting body (2),
a blade assembly (4) holding a blade (41);
A connecting part (6) inserted into the connecting hole,
The connection part has an operation part (65), which is an operation part provided on the opposite side of the exposed side of the blade body and is operated when the razor head is detached from the connection hole,
The operation portion has a length in a vertical direction orthogonal to the extending direction of the blade body greater than a length in the horizontal direction, which is the extending direction of the blade body.
A razor head.

In the razor head configured as described above, the operating portion is purposely shaped to be longer in the vertical direction than in the horizontal direction. As a result, the connecting hole of the mounting body into which the operation part is inserted also has a shape longer in the vertical direction than in the horizontal direction, so that the razor head rotates (tilts) about the direction in which the mounting body extends, and swings. In this case, it is possible to prevent the mounting body from interfering with the rotation of the razor head.

Further, when the razor head having the above structure is adopted, the connection hole of the attachment can be made relatively simple, so that the entire attachment can be made simple. For example, even if the mounting body is formed of a single member such as only metal or only resin, sufficient attachment/detachment performance can be achieved. Therefore, depending on the material used, it is possible to obtain a mounting body that is resistant to breakage, can be used for a long period of time, and is easy to recycle after use, enabling effective use of resources. Furthermore, if the design drawing of the mounting body or the data for manufacturing the mounting body with a 3D printer is published or distributed, the mounting body has a simple configuration, so even an individual can create a self-made mounting body that saves resources. It can be manufactured relatively easily. Furthermore, since the grip does not necessarily have to be dedicated to a razor, it is possible to configure it to function as a razor simply by connecting the mounting body to, for example, a long-handled razor or a lever portion of a nail clipper.

Preferably, in the above razor head,
The operating portion protrudes from an opening of the connecting hole on the side opposite to the blade side when the razor head and the mounting body are connected.

In the razor head configured as described above, the operation portion protrudes in the connecting hole on the side opposite to the blade body side, so that the user can easily detach the razor head from the mounting body by operating the operation portion. In addition, since the operating portion has a shape that is long in the vertical direction, compared to a shape that is long in the horizontal direction, when operating the operating portion with the index finger or thumb of the hand that holds the razor, the direction in which the finger extends does not match the direction in which the finger extends. The vertical direction of the vertically long operating portion is the same as the extending direction of the grip portion of the razor, making it easier for the user to operate. In addition, when the user grips the attachment (gripping part) and operates the operation part with the index finger or thumb, the user's force is easily transmitted to the operation part. It is possible to detach.

Preferably, in the above razor head,
The connecting portion changes 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 unlocked from the connecting hole by operating the operating portion. An engaging/disengaging portion (64) is further provided.

Preferably, in the above razor head,
The connecting portion is
a guide portion (62) extending on the side opposite to the exposed side of the blade body and held by the mounting body;
a cantilever spring (63) extending opposite to the exposed side of the blade,
The operating portion is provided on the free end side of the cantilever spring.

In the razor head having the above configuration, since the connection portion is provided with a cantilever spring, the razor head can be attached and detached from the mounting body by changing the engagement state of the engagement/disengagement portion using the elastic deformation of the spring. A possible configuration can be constructed relatively simply.

Preferably, in the above razor head,
The cantilever spring is provided below the lower end of the blade assembly.

According to the razor having the above configuration, the distance between the connecting portion between the operating portion and the cantilever spring and the upper end of the operating portion can be increased. As a result, the distance from the point of force to the fulcrum during operation can be made longer, and the attachment and detachment of the razor head with respect to the mounting body can be made possible with less force.

Preferably, in the above razor head,
Further comprising an elastic support (5) provided on the opposite side of the exposed side of the blade,
The elastic support is
a connecting portion (5c) connecting the blade assembly and the connecting portion;
and a pair of flexible portions (5b) extending from the connecting portion in the left-right direction along the extension direction of the blade and having ends connected to the blade assembly.

According to the razor head configured as described above, the swinging function is provided on the razor head side, and there is no need to provide the swinging function in the mounting body. It becomes easier to have a relatively simple configuration. Therefore, it is easy to construct the mounting body as a single material, which has characteristics such as being hard to be damaged and used for a long period of time, and being easy to recycle after use and effectively utilizing resources. In addition, by disclosing or distributing the design drawing of the mounting body or the data for manufacturing the mounting body with a 3D printer, it becomes relatively easy for even an individual to manufacture a self-manufactured mounting body without wasting resources. In addition, since the mounting body does not necessarily have to be dedicated to a razor, it can be easily configured to function as a razor simply by connecting the mounting body to, for example, a long-handled razor or a lever portion of a nail clipper.

One means of the present invention is
A razor head attachment (2) connected to a razor head holding a blade body,
a connecting mechanism (71, 73) for connecting with a rod-shaped member not formed for the mounting body,
A razor head attachment.

In the mounting body configured as described above, instead of a razor or a gripping part formed exclusively for the mounting body, for example, a used chopstick, a toothbrush, a writing utensil, or a rod-shaped member such as a tree can be used in place of the gripping part. By using such a worn-out rod-shaped member together with the mounting body, it becomes possible to use an object around the user as a grip portion for the razor. As a result, there is no need to create a razor-dedicated grip, and resource usage can be reduced.

The connection mechanism of the mounting body may be configured to have a clamping portion (71a) that clamps the rod-shaped member. In the configuration provided 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 grip portion.

The connection mechanism of the mounting body may have an insertion hole into which the rod-shaped member is inserted. In the configuration provided with such a connecting mechanism, it is possible to use a rod-shaped member that is not dedicated to a razor with a simple configuration in place of the grip portion of the razor.

FIG. 1 is a perspective view of the razor of the embodiment as seen from the back side. FIG. 2 is a perspective view of the razor of the embodiment viewed from the front side. FIG. 3 is an exploded perspective view of the razor of the embodiment. FIG. 4 is a side view of the razor of the embodiment. FIG. 5 is a cross-sectional view of the razor of the embodiment. FIG. 6 is an exploded sectional view of the razor of the embodiment. FIG. 7 is a cross-sectional view of the razor of the embodiment in a swinging state. FIG. 8 is a perspective view of the connecting hole of the mounting body of the embodiment as seen from the front side. FIG. 9 is a perspective view of the connecting hole of the mounting body of the modification as viewed from the front side. FIG. 10 is a perspective view of a modified razor viewed from the front side. FIG. 11 is a perspective view of a modified razor viewed from the front side. FIG. 12 is a side view schematically showing a modified razor.

A razor according to one aspect of the present invention is characterized by a connecting mechanism between a razor head and a mounting body, which makes it possible to easily attach and detach the razor head to and from the mounting body while preventing the razor head from falling off unexpectedly. configuration. In addition, even if the entire mounting body has a simple configuration, sufficient attachment/detachment performance can be achieved, so that the mounting body can have characteristics such as being hard to break and easy to recycle.

The razor of the present invention will be specifically described with reference to the drawings. However, the embodiments and modifications described below are merely examples of the present invention, and should not be construed as limiting the technical scope of the present invention. In addition, in each drawing, the same code|symbol is attached|subjected to the same component.

Each drawing in this specification shows an x-axis, a y-axis and a z-axis. The axis extending in the direction in which the blade body of the blade assembly extends in the non-swinging state is defined as the "y-axis", and the axis extending in the direction parallel to the skin contact surface of the blade body at this time is defined as the "y-axis". Define "x-axis". An axis extending in a direction perpendicular to both of these “x-axis” and “y-axis” is defined as “z-axis”. The x-, y-, and z-axes form a left-handed three-dimensional Cartesian coordinate system. The arrow direction of the x-axis is sometimes called the x-axis + side, and the opposite direction 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 referred to as the "back side" and the "front side", respectively. The y-axis + side and y-axis - side are sometimes referred to as the "right side" and the "left side," respectively. The x-axis + side and x-axis − side are sometimes referred to as "upper" and "lower", respectively. Also, the x-axis direction is sometimes referred to as the vertical direction. The y-axis direction is sometimes called the horizontal direction. The z-axis direction is sometimes called the thickness direction.

<1. embodiment>
FIG. 1 is a perspective view of the razor 1 of this embodiment as seen from the back side. FIG. 2 is a perspective view of the razor 1 viewed from the front side. FIG. 3 is an exploded perspective view of the razor 1. FIG. FIG. 4 is a side view of the razor 1. FIG. FIG. 5 is a cross-sectional view of the razor 1. FIG. FIG. 6 is an exploded sectional view of the razor 1. FIG. FIG. 7 is a cross-sectional view of the razor 1 with the razor head oscillated to the maximum tilt. FIG. 8 is a perspective view of the connecting hole of the attachment as viewed from the front side.

As shown in FIG. 1 and the like, the razor 1 includes a mounting body 2 and a razor head 3 . In this specification, the structure having the connecting hole 25 for attaching the razor head 3 is referred to as the "attachment body", which is a grip portion that is gripped by the user when the razor 1 is used, and the grip portion. Including attachable mounting members and the like. In the embodiment, a configuration in which the mounting body 2 is a grip is described as an example, but the configuration is not limited to this.

<Mounting body 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 longer in the vertical direction than in the horizontal direction. The attachment body 2 of this embodiment serves as a grip portion that a user grips 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 of a single material of hard resin such as ABS resin, but is not limited to this. materials may be used. Moreover, the mounting body 2 does not necessarily have to be formed of a single member.

The attachment body 2 has a connecting surface 22, a stepped surface 23, an in-hole lower surface 24, and a protrusion 2a inside the connecting hole 25. As shown in FIG. The step surface 23 is a surface that is recessed from the outer edge surface 21 of the mounting body 2 and is formed along the xy plane. The connection surface 22 is a surface formed along the yz plane that connects the outer edge surface 21 and the stepped surface 23 . The in-hole lower surface 24 is a surface formed on the lower side of the connecting hole 25 . As shown in FIG. 5 and the like, the in-hole lower surface 24 has a portion that abuts against the lower surface of the cantilever spring 63 and an inclined surface that slopes downward from this portion toward the front side. have When inserting the guide portion 62 , the cantilever spring 63 , the engaging/disengaging portion 64 , and the operating portion 65 into the connecting hole 25 to connect the mounting body 2 to the razor head 3 , the inclined surface serves as an engaging/disengaging portion. This is the portion with which the lower end 64a of 64 abuts. Since the inner bottom surface 24 of the connecting hole 25 is thus inclined, the connecting hole 25 is vertically tapered from the front side to the back side.

A pair of protrusions 2a are formed at positions facing each other in the y-axis direction so as to protrude 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 protrusion 2 a faces the rear end surfaces 6 a of the right plate portion 62 b and the left plate portion 62 c of the razor head 3 . In this embodiment, the projecting portion 2a is configured not to abut against the rear end surfaces 6a of the right plate portion 62b and the left plate portion 62c, but may be configured to abut.

Note that the attachment body 2 may be a member that can be connected to a rod-shaped member that functions as a gripping portion instead of the gripping portion. In this case, the mounting body 2 may have a connecting mechanism for connecting to the rod-shaped member. The connecting mechanism may be, for example, one that clamps the rod-shaped member, a cap-like one having an insertion hole into which the rod-shaped portion of the rod-shaped member can be inserted, or any other mechanism. good too. For example, used chopsticks, toothbrushes, writing utensils, or wood can be used as stick-shaped members. When such a worn-out rod-like member is used together with the mounting body 2, it is possible to use an object around the user as a gripping part for the razor without making a new gripping part for the razor. By using such a worn-out rod-like member, it is possible to reduce the use of resources because there is no need to create a razor-dedicated grip.

<Razor head 3>
As shown in FIG. 6 and the like, the razor head 3 includes a blade assembly 4, an elastic support 5, and a connecting portion 6. As shown in FIG.

<Blade assembly 4>
The blade assembly 4 includes five blades 41 and a frame 42 that holds the blades 41 . The blade body 41 extends along the y-axis. The blade body 41 has an end surface on the front side that is exposed on the front side as a cutting edge. A surface including the cutting edges of the plurality of blades 41 serves as a skin contact surface that contacts the user's skin. The blade body 41 is urged toward the front side to prevent excessive pressure from being applied to the user's skin. The number of blades 41 can be changed arbitrarily.

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

<Elastic support 5>
The elastic support 5 is made of a flexible material such as soft resin or rubber, and includes 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 portion of the blade assembly 4 and is connected to the blade assembly 4. As shown in FIG. A pair of flexible portions 5b extend left and right from the connecting portion 5c. The pair of flexible portions 5b are connected to the frame 42 by the left and right connecting portions 5d. The left-right connecting portion 5d is 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. By bending the flexible portion 5b of the elastic support 5, the blade assembly 4 can be tilted with respect to the mounting body 2. This tilts the skin contact surface of the blade 41, thereby tilting the razor 1 to the neck. It can perform a swing function.

An upper end portion 5a, which is an upper end surface of the elastic support 5, is an inclined surface that inclines downward toward the front side. The inclined blade assembly 4 abuts against the upper end portion 5 a of the elastic support 5 to restrict tilting. In other words, the upper end portion 5a of the elastic support 5 functions as a tilting restriction mechanism that restricts tilting of the blade assembly 4 beyond a certain level. As shown in FIG. 7, the inclined surface of the upper end portion 5a of the elastic support 5 has an inclination angle of surface contact with the contact surface 42a of the blade assembly 4 when it comes into contact with the blade assembly 4. have.

<Connecting part 6>
The connecting portion 6 includes a main portion 61 , a guide portion 62 , a cantilever spring 63 , an engaging/disengaging portion 64 , an operating portion 65 and a plate portion 66 . The guide portion 62 , the cantilever spring 63 , the engaging/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 hard resin such as ABS resin. The connecting portion 6 is preferably formed of a single member, but at least the cantilever spring 63 and the engaging/disengaging portion 64 are formed so as to be elastically deformable.

The main body portion 61 is a portion of the connection portion 6 located on the upper side and on the front side, and is connected to the elastic support member 5 as well as to the guide portion 62 . The guide portion 62 is positioned below the main portion 61 and extends toward the back side. The guide portion 62 and the cantilever beam-shaped spring 63 are provided so that the front end portions thereof do not protrude further to the front side than the front edge portion 26 of the mounting body 2 . That is, in the connection portion 6 , the structure other than the main body portion 61 does not protrude toward the front side beyond the edge portion 26 on the front side of the mounting body 2 .

The guide portion 62 includes an upper plate portion 62a, a right plate portion 62b, and a left plate portion 62c. The guide portion 62 has a U-shaped cross section in the xy plane by an upper plate portion 62a, a right plate portion 62b, and a left plate portion 62c. The front side portion of the guide portion 62 is formed to extend downward more than the back side portion. Although the back side of the guide portion 62 in this embodiment has an open shape, it may have a shape with a bottom surface. However, if the guide portion 62 has a shape in which the back side of the guide portion 62 is open, the operation portion 65 can be largely elastically deformed due to the absence of the bottom surface at the position facing the operation portion 65 . In some cases, it becomes easier to attach and detach the head 3 . The upper plate portion 62a, the right plate portion 62b, and the left plate portion 62c of the guide portion 62 face the inner surface of the connecting hole 25 and, in some cases, come into contact with each other. When the razor head 3 tries to move in the x-axis direction or the y-axis direction with respect to the mounting body 2 , the guide portion 62 comes into contact with the inner surface of the connecting hole 25 to restrict the movement. Likewise, when the razor head 3 is about to rotate in the xy plane about the z-axis with respect to the mounting body 2, the guide portion 62 contacts the inner surface of the connecting hole 25 to rotate. is regulated.

A pair of plate-like portions 66 are formed to protrude rightward and leftward from the right plate portion 62b and the left plate portion 62c of the guide portion 62, respectively. The front side surface of the plate-like portion 66 forms a plane parallel to the xy plane together with the front side end surfaces of the right plate portion 62b and the left plate portion 62c. A back side surface 66 a , which is a back side surface of the plate-like portion 66 , faces a front side stepped surface 26 a that is recessed from the edge portion 26 on the front side of the mounting body 2 to the back side. When the razor head 3 is connected to the mounting body 2, the rear side surface 66a of the plate-like portion 66 and the front side stepped surface 26a are in contact with each other. The contact between the rear side surface 66a and the front side stepped surface 26a restricts the movement of the razor head 3 in the z-axis direction with respect to the mounting body 2, thereby stably connecting the mounting body 2 and the razor without rattling in the z-axis direction. Head 3 is connected.

In the configuration of the present embodiment, as described above, the plate-like portion 66 abuts against the mounting body 2 in the z-axis direction, thereby restricting the movement of the razor head 3 in the z-axis direction with respect to the mounting body 2. Alternatively, the mounting body 2 and the razor head 3 may contact each other in the z-axis direction at different portions.

The cantilever-like spring 63 is provided below the lower end of the blade assembly 4 in the vertical direction (x-axis direction), and a part from the end on the front side is a right plate portion 62b and a left plate portion. 62c. The cantilever spring 63 is formed to extend toward the back side. The front end of the cantilever spring 63 is a fixed end, and the back end is a free end. An operating portion 65 extending in the vertical direction is provided at the end portion on the back side, which is the free end of the cantilever spring 63 . An engagement/disengagement portion 64 is provided below the operation portion 65 . The lower surface of the engagement/disengagement portion 64 faces the connection surface 22 and is provided so as not to protrude from the opening 25a on the back side of the connecting hole 25 to the back side. That is, the lower end 64 a of the engagement/disengagement portion 64 is covered with the attachment body 2 on the side surface (the surface in the y-axis direction).

The back surface of the operation portion 65 is curved toward the back as it goes upward, and the vicinity of the upper end serves as a pressing surface 65a. At least a portion of the pressing surface 65 a of the operating portion 65 is exposed on the back side of the connecting hole 25 . The operation portion 65 is formed longer in the vertical direction than in the horizontal direction.

<Detachment operation between mounting body 2 and razor head 3>
When the user presses the pressing surface 65a toward the z-axis - side in the locked state in which the connecting portion 6 is inserted and locked into the connecting hole 25 as shown in FIG. The spring 63 is elastically deformed, the pressing surface 65a moves to the z-axis - side, and the lower end 64a of the engaging/disengaging portion 64 moves to the x-axis + side while being inclined to the z-axis + side. As a result, the engagement/disengagement portion 64 is displaced from the step surface 23 to the x-axis + side (upper side) in the x-axis direction, and the engagement/disengagement portion 64 rides over the step surface 23 to the z-axis − side (front side). As a result, the locked state of the cantilever beam spring 63 and the engaging/disengaging portion 64 is released, resulting in an unlocked state.

On the other hand, when connecting the razor head 3 to the mounting body 2 in the unlocked state in which the connecting portion 6 of the razor head 3 is separated from the connecting hole 25 as shown in FIG. A guide portion 62 , a cantilever spring 63 , an engaging/disengaging portion 64 and an operating portion 65 are inserted 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 hole lower surface 24, the upper plate portion 62a of the guide portion 62 abuts against the hole inside upper surface 27, and the cantilever spring 63 moves toward the x-axis + side. As it bends toward (upper side), the engaging/disengaging portion 64 moves to the x-axis + side. Furthermore, when the cantilever spring 63 and the engaging/disengaging portion 64 are inserted on the z-axis + side (back side), and the engaging/disengaging portion 64 moves over the stepped surface 23 to the z-axis + side (back side), the x-axis + The cantilever-like spring 63 bent toward the side (upper side) moves to the x-axis side (lower side) due to the urging force, and the engaging/disengaging portion 64 also moves to the x-axis side (lower side). As a result, the engagement/disengagement portion 64 and the cantilever spring 63 are locked to the step surface 23 . As a result, a locked state as shown in FIG. 5 is obtained, and the mounting body 2 and the razor head 3 are connected.

<Swinging action of the blade assembly 4 with respect to the mounting body 2>
In the razor 1 of this embodiment, as already described, the blade assembly 4 can be swiveled with respect to the mounting body 2 . In the blade assembly 4, the flexible portion 5b of the elastic support 5 tries to elastically deform so that the skin contact surface of the blade 41 is parallel to the contact surface. The tilt angle range of the blade assembly 4 is determined by the contact surface between the restricting portion 43 and the main body portion 61 and the contact surface 42 a between the upper end portion 5 a of the elastic support 5 and the frame 42 . As shown in FIG. 5, when the restricting portion 43 and the main portion 61 abut on the blade assembly 4, the upper end of the blade assembly 4 moves downward, that is, in the counterclockwise direction in FIG. tilting is regulated. As shown in FIG. 7, when the contact surface 42a on the back side of the frame 42 and the upper end 5a of the elastic support 5 abut on the blade assembly 4, the lower end of the blade assembly 4 moves upward. tilting in the clockwise direction in FIG. 7 is restricted.

<2. Variation>
The razor 1 described in the above embodiment, and the mounting body 2 and razor head 3 that constitute the razor 1, can be arbitrarily modified without departing from the gist of the invention. Some modifications of the embodiment of the present invention will be described below.

<Modification 1>
The mounting body 2 may have a connecting hole 25m as shown in FIG. 9 instead of having the connecting hole 25 as in the embodiment.

The attachment body 2m has a surface portion 2b instead of the protrusion 2a of the attachment body 2. As shown in FIG. The surface portion 2b is a planar portion that protrudes from the surface of the connecting hole 25m on the positive side of the z-axis toward the negative side of the z-axis. The surface portions 2b are provided at positions facing each other in the y-axis direction. The surface portion 2b may be in surface contact with the rear end surfaces 6a of the right plate portion 62b and the left plate portion 62c of the razor head 3 when the razor head 3 is connected to the mounting body 2m.

<Modification 2>
The razor 1 of the embodiment can be configured as a modified example shown in FIG.

A razor 1m shown in FIG. 10 includes a mounting body 2n instead of the mounting body 2 of the embodiment. The mounting body 2n has a connection 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. The connecting clip 71 can open and close a pair of clamping portions 71a that are biased in the closing direction by a spring by operating the operation portion 71c that serves as a force point. 72 can be held. Any member can be used as the rod-shaped member 72 as long as it has a diameter that allows it to be held by the holding portion 71a. The upper end of the holding portion 71a opens and closes in accordance with the lower end 71b.

<Modification 3>
The razor 1 of the embodiment can be configured as a modified example shown in FIG.

A razor 1n shown in FIG. 11 includes a mounting body 2o instead of the mounting body 2 of the embodiment. The mounting body 2o has a connection cap 73 that is detachably connected to the rod-shaped member 72 by inserting another rod-shaped member 72 therein. The connection cap 73 is a cylindrical member having an insertion hole 73b at its lower end, and has a slit 73a formed upward from its lower end. A 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 according to the diameter of the rod-like member 72 expected to be connected, but may be the size that matches the diameter of a pencil, for example. The inner diameter of the insertion hole 73b of the connecting cap 73 may decrease toward the upper side. By inserting the rod-shaped member 72 from the insertion hole 73b at the lower end of the connection cap 73, the mounting body 2o and the rod-shaped member 72 are connected. The connection cap 73 has the slit 73a, so that the rod-like member 72 having a diameter slightly larger than the inner diameter of the insertion hole 73b can be inserted and connected. Note that the slit 73a is not an essential component of the connecting cap 73, and a configuration without the slit 73a may be adopted.

Note that the connecting mechanism for connecting with the rod-shaped member is not limited to those in Modifications 2 and 3, and may adopt other configurations. For example, a magnet, hook-and-loop fastener, screwing, or winding with a band may be employed as the connecting mechanism.

Incidentally, in the razors 1m and 1n of Modifications 2 and 3, the attachment bodies 2n and 2o may not be detachable from the razor head 3, but may be non-detachably connected. That is, the attachment bodies 2n and 2o may be formed integrally with the razor head 3.

<Modification 4>
The razor 1 of the embodiment can be configured as a modified example shown in FIG.

A razor 1o shown in FIG. 12 includes a razor head 3m and a mounting body 2p. The razor head 3m has a connecting portion 6m instead of the connecting portion 6m. The connecting portion 6m has magnets 67a and 67b arranged near its upper and lower ends. The mounting body 2p is made entirely of ferromagnetic metal or the like, and has a connecting hole 25n. When connecting the razor head 3m to the mounting body 2p, the operation portion 65m of the razor head 3m is inserted into the connecting hole 25n of the mounting body 2p, and the magnets 67a and 67b and the mounting body 2p are brought into contact with each other. , the mounting body 2p and the magnets 67a and 67b are attracted and connected. When detaching the razor head 3m from the mounting body 2p, the user presses the end of the operating portion 65m with a force greater than the attraction force between the mounting body 2p and the magnets 67a and 67b. 67b leaves.

In Modification 4, only the portions of the mounting body 2p facing the magnets 67a and 67b may be made of ferromagnetic metal or the like, and the other portions may be made of another material. Alternatively, a configuration may be adopted in which magnets that are attracted to the magnets 67a and 67b are provided in portions facing the magnets 67a and 67b. Alternatively, the mounting member 2p may be provided with a magnet, and the connection portion 6m may be provided with a ferromagnetic metal portion or the like in place of the magnets 67a and 67b. In this case, the connecting portion 6m may be entirely made of a ferromagnetic material.

Moreover, although the razor head 3 of the embodiment has the elastic support member 5 and has the swinging function, the razor head 3 may not necessarily have the swinging function.

The connecting hole 25 of the embodiment has a guide portion 62 and a cantilever spring 63 on the front side so that the guide portion 62 and the cantilever spring 63 are not exposed on the lower side of the blade assembly 4 . It may be formed so as to cover the side surface (surface in the y-axis direction) of the beam-shaped spring 63 .

Although the mounting body 2 of the embodiment functions as a gripping part, the mounting body 2 may function as a gripping part together with the member by being attached to another member.

The attachment body 2 of the embodiment may be molded by a 3D printer using 3D data for the 3D printer. In this case, the molding of the mounting body 2 by the 3D printer includes, for example, a step of ejecting a material such as liquid resin for forming the mounting body 2 based on the data for the 3D printer that has been input and stored, and a step of ejecting the ejected material. This is done by the process of solidifying the material. The present invention includes design data for a 3D printer for molding the mounting body 2 according to such embodiments, a recording medium storing the design data, and a method of molding the mounting body 2 .

It should be noted that the razor described in the embodiments and modifications is merely one configuration example, and the scope of the present invention is not limited to these embodiments and modifications, and is within the scope that can be grasped by those skilled in the art based on the same technical idea. is widely interpreted.

<3. Features of the present invention>
The present invention, which has been described by exemplifying the embodiments, has the following features. In the following description, for the sake of convenience, there will be portions that refer to the razor 1 and the attachment 2 described in the embodiment, but the description is not limited to the razor 1 and the attachment 2 of the embodiment. , modified razors 1m to 1o, attachment bodies 2m to 2p, and the like. Similarly, the configurations other than the razor 1 and the mounting body 2 are limited to the configurations of the embodiment, and the configurations of the modified examples are not excluded.

Conventionally, a mounting body (including a grip part) for detachably connecting a razor head has a shape that is elongated in the lateral direction, which is the direction in which the blade body extends, so that a connecting hole that is elongated in the lateral direction is inevitably formed. It was configured to have However, if the connecting hole of the mounting body is long in the horizontal direction, the relevant portion of the mounting body will also be long in the horizontal direction. When swinging, the mounting body sometimes interferes with the rotation of the razor head. In the configuration of the embodiment, the connecting hole 25 of the mounting body 2 is intentionally longer in the vertical direction than in the horizontal direction. It is possible to prevent the mounting body 2 from interfering with the rotation of the razor head 3 when the razor head 3 is swung.

Further, in the razor 1 , the operation portion 65 protrudes in the connecting hole 25 on the side opposite to the blade body 41 side, so that the user can easily detach the razor head 3 from the mounting body 2 by operating the operation portion 65 . can be done. Moreover, since the connecting hole 25 is elongated in the vertical direction, the operating portion 65 can also be elongated in the vertical direction. When the operating portion 65 has such a shape that is elongated in the vertical direction, compared to the shape that the operating portion 65 is elongated in the horizontal direction, when operating the operating portion 65 with the index finger or thumb of the hand that grips the razor 1, the fingers of that finger are less likely to move. The extending direction and the vertical direction of the vertically long operating portion 65 are both the same as the extending direction of the grip portion of the razor 1, which facilitates the operation by the user. Further, when the attachment body 2 (grip portion) is gripped and the operation portion 65 is operated with the forefinger, thumb, or the like, the operation portion 65 is shaped so that the force of the user can be easily transmitted. It becomes possible to detach the razor head 3 from.

In a conventional razor having a mounting body (including a grip part) for detachably connecting the razor head, the razor head is unexpectedly removed from the mounting body because the part where the razor head is engaged and connected is close to the hands and skin. may fall off. On the other hand, in the razor 1 of the present invention, the stepped surface 23 capable of locking the engaging/disengaging portion 64 is provided inside the connecting hole 25 recessed from the outer edge surface 21 of the mounting body 2 . Therefore, even if the user's hand or skin accidentally touches the operating portion 65, the movement of the engaging/disengaging portion 64 is restricted inside the connecting hole 25. It is possible to prevent the engagement of the engagement/disengagement portion 64 from being released. Thus, the cantilever spring 63 of the razor head 3, the operation part 65, and the like make it easy to attach and detach the razor head 3, while providing the razor 1 capable of preventing the razor head 3 from suddenly falling off. be able to.

Further, in the razor 1, the connecting hole 25 is formed so as to cover the entire portion of the engaging/disengaging portion 64 facing the connecting surface 22 in the lateral direction (y-axis direction). With this configuration, the side of the engaging/disengaging portion 64 is covered with the connecting hole 25. Therefore, even if the user accidentally touches the operation portion 65 during use, the engaging/disengaging portion 64 moves to engage. It is possible to more effectively prevent the razor head 3 from falling off due to the release of the lock.

Moreover, in the modified example of the razor 1 , a connecting mechanism for connecting with the rod-like member 72 can be further provided at the lower end of the mounting body 2 . According to such a razor 1, it is possible to use other rod-like members as the gripping portion instead of the gripping portion dedicated to the razor. For example, used chopsticks, toothbrushes, writing utensils, or wood can be used as the rod-shaped member 72 . By using such a worn-out rod-shaped member 72 together with the mounting body 2, it is possible to use an object around the user as a grip portion for the razor. As a result, there is no need to create a razor-dedicated grip, and resource usage can be reduced.

The razor 1 also has a guide portion 62 and a cantilever spring 63 , and an operating portion 65 is provided on the free end side of the cantilever spring 63 . With this configuration, the razor head 3 can be attached and detached from the mounting body 2 by changing the engagement state of the engagement/disengagement portion 64 using the elastic deformation of the cantilever spring 63, which is relatively simple. be able to.

Also, in the razor 1 , the cantilever spring 63 is provided below the lower end of the blade assembly 4 . With this configuration, the distance between the connecting portion between the operating portion 65 and the cantilever beam spring 63 and the pressing surface 65a of the operating portion 65 can be increased. It can be made longer, allowing attachment and detachment of the razor head 3 to and from the mounting body 2 with less force.

Further, in the razor 1, the razor head 3 has an elastic support 5 having a connecting portion 5c and a pair of flexible portions 5b. With this configuration, the oscillating function is provided on the razor head 3 side, and there is no need to provide the mounting body 2 with the oscillating function. Facilitates simple configuration. Therefore, the mounting body 2 is made of a single material, and can be easily used for a long period of time without being damaged, and can be easily recycled after use for effective utilization of resources. In addition, design drawings of the mounting body 2 or data for manufacturing the mounting body 2 with a 3D printer are made public or distributed, so that even individuals can relatively easily manufacture their own mounting body 2 without wasting resources. easier. In addition, since the mounting body 2 does not necessarily need to be used exclusively for razors, it is possible to easily configure the mounting body 2 to function as a razor simply by providing the mounting body 2 on a lever portion of a long-handled razor or a nail clipper, for example.

Further, the razor or attachment of Modifications 2 and 3 are configured to include a coupling mechanism for coupling with the rod-shaped member 72 which is not formed as an exclusive product for the razor or attachment. With such a configuration, for example, a razor that can be used in place of worn-out chopsticks, a toothbrush, a writing utensil, or a rod-shaped member such as wood as a grip. By using such a worn-out rod-shaped member together with the mounting body, it becomes possible to use an object around the user as a grip portion for the razor. As a result, there is no need to create a razor-dedicated grip, and resource usage can be reduced.

For example, in the mounting body 2n as in Modified Example 2, by providing a holding portion 71a like the connecting clip 71, a rod-shaped member having a relatively wide range of diameters can be used instead of the holding portion. It will be possible to use

For example, in the attachment body 2o of Modified Example 3, by providing an insertion hole 73b like the connecting cap 73, a rod-shaped member that is not dedicated to a razor can be easily attached to the grip portion of the razor. can be used instead of

The razor of the present invention is suitably applied as a razor or the like that contributes to environmental protection.

Reference Signs List 1, 1m, 1n, 1o... Razor 2, 2m, 2n, 2o, 2p... Mounting body 21... Outer edge surface 22... Connection surface 23... Step surface 24... Hole inner bottom surface 25, 25m, 25n... Connection hole 26... Edge 26a front side stepped surface 27 upper surface 3, 3m in hole 4 razor head 4 blade assembly 41 blade 42 frame 42a contact surface 43 regulating portion 5 elastic support 5a upper end Portion 5b Flexible portion 5c Connecting portion 5d Left and right connecting portions 6, 6m Connecting portion 61 Main body portion 62 Guide portion 62a Upper plate portion 62b Right plate portion 62c Left plate portion 63 Cantilever shape Spring 64 Engaging/disengaging portion 65, 65m Operating portion 65a Pressing surface 66 Plate-like portion 67a, 67b Magnet 71 Connecting clip 72 Bar member 73 Connecting cap

Claims (22)

A razor head attachment having a connection hole for detachably connecting the razor head,
The connecting hole is a through hole into which a connecting portion of the razor head is inserted,
The cross section of the connecting hole in the plane orthogonal to the direction of insertion of the connecting portion into the connecting hole is longer than the length in the horizontal direction, which is the extending direction of the blade held by the razor head. The longitudinal length perpendicular to the direction is formed larger,
Mounting body for razor head. When the razor head and the mounting body are connected to each other, the connecting hole has an operating portion that is operated when the razor head is detached from the connecting hole. formed to protrude from a side opening,
The razor head attachment according to claim 1. The connecting hole changes 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 unlocked from the connecting hole by operating the operating portion. A stepped surface recessed one step from the outer edge surface of the mounting body that can lock the engaging/disengaging portion,
The razor head mount according to claim 2. The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed so as to cover the entire portion of the engaging/disengaging portion that faces the connecting surface in the extending direction of the blade. Ru
A razor head attachment according to claim 3. Further comprising a connecting mechanism for connecting with the rod-shaped member provided at the lower end,
A razor head attachment according to any one of claims 1 to 4. A razor comprising: a razor head; and a razor head attachment body having a connecting hole for detachably connecting the razor head,
The razor head is
a blade assembly that holds the blade;
a connecting portion inserted into the connecting hole,
The connecting hole is a through hole into which the connecting portion is inserted,
The cross section of the connecting hole in the plane orthogonal to the direction of insertion of the connecting portion into the connecting hole is longer than the length in the horizontal direction, which is the extending direction of the blade held by the razor head. The longitudinal length perpendicular to the direction is formed larger,
razor. the connecting portion includes an operation portion provided on the opposite side of the blade body to the exposed side, the operation portion being operated when the razor head is detached from the connecting hole;
The connecting hole is formed such that, when the razor head and the mounting body are connected, the operating portion protrudes from an opening of the connecting hole on the side opposite to the blade body side.
A razor according to claim 6. The connecting portion changes 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 unlocked from the connecting hole by operating the operating portion. further comprising an engaging/disengaging portion for
The connecting hole has a stepped surface recessed one step from the outer edge surface of the mounting body, and is capable of locking the engaging/disengaging portion.
A razor according to claim 7. The connecting part is
a guide portion extending on the side opposite to the exposed side of the blade body and held by the mounting body;
a cantilever spring extending opposite to the exposed side of the blade,
The operation part is provided on the free end side of the cantilever spring,
A razor according to claim 8. The cantilever spring is provided below the lower end of the blade assembly,
A razor according to claim 9 . The connecting hole has a connecting surface that connects the outer edge surface and the stepped surface, and is formed so as to cover the entire portion of the engaging/disengaging portion that faces the connecting surface in the extending direction of the blade. Ru
A razor according to any one of claims 8 to 10. The mounting body further comprises a connecting mechanism provided at the lower end for connecting with the rod-shaped member,
A razor according to any one of claims 6 to 11. the razor head further comprising a resilient support provided on the opposite side of the blade from the exposed side;
The elastic support is
a connecting portion that connects the blade assembly and the connecting portion;
a pair of flexible portions extending from the connecting portion in the left-right direction along the extending direction of the blade body and having ends connected to the blade assembly,
A razor according to any one of claims 6 to 12. A razor head detachably connected to a connecting hole of a razor head attachment,
a blade assembly that holds the blade;
a connecting portion inserted into the connecting hole,
The connecting portion has an operation portion provided on the side opposite to the exposed side of the blade body, the operation portion being operated when the razor head is detached from the connecting hole,
The operation part has a length in a vertical direction orthogonal to the extending direction of the blade body greater than a horizontal length in the extending direction of the blade body.
razor head. When the razor head and the mounting body are connected, the operation part protrudes from an opening of the connecting hole on the side opposite to the blade side.
A razor head according to claim 14. The connecting portion changes 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 unlocked from the connecting hole by operating the operating portion. further comprising an engaging/disengaging portion for
A razor head according to claim 14 or 15. The connecting part is
a guide portion extending on the side opposite to the exposed side of the blade body and held by the mounting body;
a cantilever spring extending opposite to the exposed side of the blade,
The operation part is provided on the free end side of the cantilever spring,
A razor head according to claim 16. The cantilever spring is provided below the lower end of the blade assembly,
A razor head according to claim 17. Further comprising an elastic support provided on the opposite side of the exposed side of the blade,
The elastic support is
a connecting portion that connects the blade assembly and the connecting portion;
a pair of flexible portions extending from the connecting portion in the left-right direction along the extending direction of the blade body and having ends connected to the blade assembly,
A razor head according to any one of claims 14-18. A razor head attachment coupled to a razor head holding a blade body,
A connecting mechanism for connecting with a rod-shaped member not formed for the mounting body,
Mounting body for razor head. The connecting mechanism has a clamping portion that clamps the rod-shaped member,
A razor head attachment according to claim 20. The connecting mechanism has an insertion hole into which the rod-shaped member is inserted,
A razor head attachment according to claim 20.

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