JP3245585U - Fastener - Google Patents

Abstract

An object of the present invention is to provide a fastener having a structure that does not easily come off even when an external force is applied in a direction perpendicular to the direction of magnetic force. A fastener 1 includes a first connecting member 10 attached to one end of a connected member 30, and a second connecting member 10 attached to the other end of the connected member 10 and connectable to the first connecting member 10. The first connecting member 10 includes a first tip portion 11, a first grip portion 12 provided at one end of the first tip portion 11, and a first magnet 13. The second connecting member 20 has a second tip portion 21 into which the first tip portion 11 can be fitted, and a second grip portion 22 provided at one end of the second tip portion 21. and a second magnet 23, and the second tip 21 has a recess 21a that is open in the direction in which the first tip 11 is attached and removed, and an opening 21b formed on the side surface of the recess. However, when the first connecting member 10 and the second connecting member 20 are connected, the first tip 11 has a structure that is fitted into the recess 21a due to the action of magnetic force. [Selection diagram] Figure 1

Description

The present invention relates to a fastener having a structure that does not easily come off even when an external force is applied in a direction perpendicular to the direction of magnetic force.

Fasteners are used in jewelry such as necklaces and bracelets, and their role is to secure the jewelry to the neck or arm.

BACKGROUND ART Pull rings, lobster claws, mantels, and the like have been known as fasteners for jewelry. Furthermore, a fastener for jewelry that utilizes the magnetic force of a magnet is known (Patent Document 1).

Patent Document 1 describes ``an accessory having a fastener that connects a first end of an elongated body and a second end on the opposite side of the first end to form a loop shape of the elongated body. The fastener includes a first component provided on the first end side, a connecting member connected to a part of the first component, and a second component provided on the second end side. an accessory, wherein the second component has a shape that includes the face of a person or an animal, and the connecting member is provided at the mouth of the face. It is.

Utility model registration No. 3217496

However, it is known that attachment of a fastener for an accessory using magnetic force is extremely vulnerable to external force in a direction perpendicular to the direction of the magnetic force. That is, the accessory disclosed in Patent Document 1 may easily come off due to physical external force in daily life.
Therefore, an object of the present invention is to provide a fastener having a structure that does not easily come off even when an external force is applied in a direction perpendicular to the direction of magnetic force.

A fastener that is an embodiment of the present invention includes a first connecting member attached to one end of a member to be connected, and a second connecting member attached to the other end of the member to be connected and connectable with the first connecting member. and two connecting members.
In the fastener, the first connecting member includes a first tip, a first grip provided at one end of the first tip, a first magnet, and a first through hole. The second connecting member has a second tip portion into which the first tip portion can be fitted, a second grip portion provided at one end of the second tip portion, and a second grip portion provided at one end of the second tip portion. 2 magnets and a second through hole, and the second tip has a recess that is open in the direction in which the first tip is attached and removed, and an opening formed on a side surface of the recess. have
In the fastener, when the first connecting member and the second connecting member are connected, the first tip end is moved into the recessed part due to the magnetic force of the first magnet and the second magnet. mated to.

As an embodiment of the present invention, the fastener is configured such that the first tip portion of the first connecting member has a triangular pyramid shape, and the second tip portion of the second connecting member has a shape of a triangular pyramid. It may have a shape that encompasses the shape of the first tip.
In the fastener, the first connecting member may have a gourd shape, and the second tip of the second connecting member may have a shape that includes the first tip. good.
The fastener moves the first gripping portion in the attachment/detachment direction of the recessed portion of the second tip portion to easily attach/detach the first connecting member from the second connecting member. It may have a structure that allows

An object of the present invention is to provide a fastener having a structure that does not easily come off even when an external force is applied in a direction perpendicular to the direction of magnetic force.

FIG. 1 shows a transparent perspective view of a fastener according to an embodiment of the present invention. FIG. 3 shows a plan view of a fastener in a removed state according to an embodiment of the present invention. FIG. 3 shows a plan view of a fastener in an attached state according to an embodiment of the present invention. FIG. 3 shows a side view of a fastener in an attached state according to an embodiment of the present invention. FIG. 3 is an external view of a first tip and a second tip of a fastener according to an embodiment of the present invention, viewed from the X direction in FIG. 2;

[1] Fastener Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, all of these embodiments are illustrative and do not provide a limited interpretation of the present invention. In the following description, common reference numerals are given to elements having the same functions and configurations.

FIG. 1 is a transparent perspective view of a fastener 1 according to an embodiment of the present invention.
The fastener 1 is composed of a connecting member 10 and a connecting member 20.
The first connecting member 10 includes a first tip 11 , a first grip 12 , a first magnet 13 , and a first through hole 14 . The second connecting member 20 includes a second tip 21 , a second grip 22 , a second magnet 23 , and a second through hole 24 .
The second tip 21 has a recess 21a that is open in the attachment/detachment direction, and an opening 21b formed on the side surface of the recess 21a.

The first tip 11 and the second tip 21 are removable and fit into each other.
The first grip part 12 and the second grip part 22 are parts where a person grips the fastener 1 with their fingers.
The first magnet 13 and the second magnet 23 magnetically attract the first connecting member 10 and the second connecting member 20 and bring them into close contact with each other.
The first penetration part 14 is connected to the member to be connected 30 through the first connection part 41, and the second penetration part 24 is connected to the member to be connected 30 through the second connection part 42. Yes (see Figure 2).

[2] First connecting member FIGS. 2 and 3 show plan views of the fastener 1 according to an embodiment of the present invention. FIG. 4 shows a side view of a fastener 1 according to an embodiment of the present invention.
The first connecting member 10 includes a first tip 11 , a first grip 12 , a first magnet 13 , and a first through hole 14 .

As shown in FIG. 2, the shape of the first tip portion 11 is, for example, approximately spherical. Further, since the magnet 13 is provided inside the first tip 11, a part of the sphere is shaved off. Note that details of the magnet 13 will be described later.

One end of the first gripping portion 12 is the first tip portion 11 . The shape of the first grip part 12 is, for example, a cylinder, but is not limited to a cylinder, and may be a square prism, a triangular prism, or other shapes.
The first grip part 12 is a part that is gripped by a person when attaching and detaching the fastener 1.

One end of the first grip part 12 may be formed integrally with the first tip part 11. The first grip part 12 and the first tip part 11 are not limited to integral formation, but may be formed by forming them separately and then attaching them to each other. The other end of the first grip portion 12 has a first through hole 14 . The first through hole 14 is connected to the connected member 30 through the first connecting portion 41 .

The shapes of the first through hole 14 and the second through hole 24 may be circular, elliptical, or other shapes.
The first connecting portion 41 and the second connecting portion 42 are, for example, metal rings.

Specifically, the connected member 30 is a chain, a leather belt, or the like. When the connected member 30 is a chain, the connected member 30 may be a Venetian chain, an Azuki chain, a Kihei chain, or some other chain.

[3] Second connecting member In the fastener 1 according to the embodiment of the present invention, the second connecting member 20 includes a second tip portion 21, a second gripping portion 22, a second magnet 23, and a second connecting member 20. 2 through holes 24.
As shown in FIGS. 2 and 3, the second tip 21 can fit the first tip 11, and has a recess 21a and an opening 21b.
As shown in FIG. 4, the recess 21a is open in the attachment/detachment direction of the first tip 11 (the Y direction in FIG. 4), and has a shape that encloses the shape of the first tip 11.

The opening 21b is formed on the side surface of the recess 21a. When the first connecting member 10 and the second connecting member 20 are connected, the first grip portion 12 is fitted into the opening 21b. The width of the opening 21b is such that the first tip 11 cannot pass through in the X direction.

The first tip portion 11 and the second tip portion 21 are fitted in a state in which they are in contact with each other with a slight gap, rather than physically fitting with no gap. Therefore, the first tip 11 and the second tip 21 are aligned with each other in the longitudinal direction of the fastener 1 (the X direction in FIG. 4) while maintaining the magnetic force generated by the first magnet 13 and the second magnet 23. It has a degree of freedom in the direction of rotation.

The first tip 11 has a structure that is fitted into the second tip 21 from a specific direction. Here, the specific direction is approximately the Y direction in which the recess 21a in FIG. 4 opens.

On the other hand, the first tip 11 cannot be fitted into the second tip 21 from the longitudinal direction of the fastener 1 (X direction in FIG. 4). Moreover, the second tip 21 cannot be removed from the first tip 11 in the longitudinal direction of the fastener 1 (X direction in FIG. 4). That is, the first connecting member 10 and the second connecting member 20 cannot be easily removed by external force acting in the longitudinal direction (X direction) of the fastener 1.

When the first tip 11 approaches the second tip 21 from a specific direction (the Y direction in which the recess 21a opens), it is attracted by the magnetic force of the first magnet 13 and the second magnet 23. Fit into place.
Here, the predetermined position refers to a state or position as shown in FIGS. 1, 3, and 4.

The second gripping portion 22 is provided at one end of the second tip portion 21 and has a cylindrical shape, for example. The second grip part 22 is a part that is held by a person when attaching and detaching the fastener 1. One end of the second gripping portion 22 is formed integrally with the second tip portion 21 . However, the second grip part 22 and the second tip part 21 are not limited to integral formation, and may be formed separately and then attached to each other. The other end of the second gripping section 22 has a second through hole 24 for connecting the second connecting section 42 .

[4] Material, forming method, and dimensions of the fastener 1 The material of the fastener 1 according to an embodiment of the present invention is an alloy containing 90% to 96% (preferably 92.5%, 95%) of silver, or These include alloys containing 40% to 76% gold (preferably 41.6%, 58.3%, 75%), or alloys containing 88% to 96% platinum (preferably 90%, 95%).
Note that the material of the fastener 1 does not contain iron, nickel, cobalt, etc. in order to eliminate the influence of magnetic force.

The method for forming the first connecting member 10 according to an embodiment of the present invention may include forming the first connecting member 10 by fitting it into a pair of molds and compressing it. The grip portions 12 may be formed separately, and the first connecting member 10 may be formed by melting and fusion welding them at high temperatures.
The method of manufacturing the second connecting member 20 is similar to the method of forming the first connecting member 10.

The approximately spherical diameter of the first tip 11 according to an embodiment of the present invention is within the range of 3 mm to 6 mm.
The outer diameter of the shape of the second tip 21 is within the range of 5 mm to 8 mm, and the inner diameter is within the range of 3.05 mm to 6.05 mm.

The length of the cylindrical shape of the first gripping part 12 according to an embodiment of the present invention is within the range of 3 mm to 8 mm. The diameter of the cylindrical shape of the first gripping part 12 is within the range of 2.5 mm to 5.5 mm.
The length of the cylindrical shape of the second gripping portion 22 is within the range of 3 mm to 8 mm. The cylindrical diameter of the second gripping portion 22 is within the range of 2.5 mm to 5.5 mm.

The length of the connected member 30 according to an embodiment of the present invention is within the range of 15 cm to 23 cm if it is a bracelet to be wrapped around the arm. In the case of a necklace to be wrapped around the neck, the length of the connected member 30 is within the range of 36 cm to 120 cm.

[5] Magnet FIG. 5 shows a state in which the fastener 1 according to an embodiment of the present invention is removed, and the first tip 11 (FIG. 5(b)) and the second tip 21 that fit into each other are shown. It is an external view of (FIG. 5(a)) seen from the X direction of FIG.
The first magnet 13 and the second magnet 23 are magnets provided inside the first connecting member 10 and the second connecting member 20, respectively.
In FIG. 5, the positions of the first magnet 13 and the second magnet 23 that are visible from the outside are shown.

The first magnet 13 may be provided inside the first tip portion 11 or may be provided inside the first tip portion 11 and the first grip portion 12. Further, a portion of the first magnet 13 may protrude from the first tip portion 11.
The shape of the first magnet 13 is, for example, a cylindrical shape, but other shapes are also possible.

The second magnet 23 is provided inside the second grip portion 22 . A portion of the second magnet 23 may protrude from the second grip portion 22 .
The shape of the second magnet 23 is, for example, a cylindrical shape, but other shapes are also possible.

When the first tip 11 and the second tip 21 are fitted, the first magnet 13 and the second magnet 23 may be in close contact with each other, or may have a gap.
The first magnet 13 and the second magnet 23 are small magnets. The first magnet 13 and the second magnet 23 are magnets such as neodymium magnets, cobalt magnets, and ferrite magnets, but neodymium magnets with strong magnetic force are preferable.

The portion where the first magnet 13 and the second magnet 23 are in contact is planar. This is to fit the first tip 11 and the second tip 21 in a straight line in the longitudinal direction (X direction in FIG. 4) without wobbling, and to stabilize the magnetic force.
The surfaces of the first magnet 13 and the second magnet 23 may be plated with nickel or the like to prevent deterioration of magnetic force due to rust or corrosion.

The first magnet 13 and the second magnet 23 have polarities (S pole or N pole) that attract each other. That is, when the polarity of the first magnet 13 is the south pole, the second magnet 23 is the north pole, and when the polarity of the first magnet 13 is the north pole, the second magnet 23 is the south pole. be.
In one embodiment of the present invention, two small cylindrical magnets are used for each of the first connecting member 10 and the second connecting member 20.

In principle, the first magnet 13 and the second magnet 23 only generate magnetic force in the longitudinal direction of the fastener 1 (X direction in FIG. 4). The first magnet 13 and the second magnet 23 are attracted to each other along the longitudinal direction of the fastener 1 .

When the first connecting member 10 is located in the Y direction in FIG. 4 and in a direction slightly shifted from the Y direction with respect to the second connecting member 20, the first tip 11 and the second tip 21 are , the magnetic force of the first magnet 13 and the second magnet 23 works to fit them in a predetermined position.
Since the material of the fastener 1 is, in principle, made of a material that is not affected by the magnetic force of a magnet, the first connecting member 10 and the second connecting member 20 are rarely attached in unexpected positions. .

As a method for removing the first connecting member 10 and the second connecting member 20, by lifting the first gripping part 12 in the Y direction (detachment direction) in FIG. 4, the first connecting member 10 is removed from the second connecting member. It can also be removed perpendicularly (90 degrees) to 20.
This is because the first gripping part 12 shakes off the magnetic force of the first magnet 13 and the second magnet 23 by the principle of leverage, that is, the first connecting member 10 is no longer affected by the magnetic force, and the first tip The portion 11 can be easily removed from the second tip portion 21.

Even if an external force is applied to the first gripping portion 12 in a direction away from a specific direction (for example, the Z direction in FIG. 4), the first tip 11 is approximately spherical and the second tip 21 Since it has a shape that encompasses the first tip 11, external force is converted into a force in the rotational direction and is dispersed. As a result, the fastener 1 is not easily removed by external forces other than in a specific direction.

[6] Other Embodiments Although the embodiment of the present invention has been described, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and changes can be made without departing from the gist of the invention.
The shape of the first tip portion 11 may be a triangular pyramid shape, and the shape of the second tip portion 21 may be a shape that encompasses the triangular pyramid shape of the first tip portion 11.

As an embodiment of the present invention, the surface of the fastener 1 may be processed to have a pattern.
As an embodiment of the present invention, the surface of the fastener 1 may be processed and colored.

The first connecting member 10 may have a gourd-shaped shape, and the second connecting member 20 may have a shape that encompasses the first connecting member 10.
In addition, as an embodiment of the present invention, the fastener 1 may have any shape as a whole. For example, the fastener 1 may be in the shape of a food such as a banana, an eggplant, or a shelled peanut, or may be in the shape of a product such as a rocket, a car, or a ship.

The fastener 1 according to the present invention can be used not only for accessories, but also for key chains, eyeglass holders, and the like.
As the chain for the connected member 30, the fastener 1 according to the present invention may be attached to a key chain. As the chain for the connected member 30, the fastener 1 according to the present invention may be attached to a spectacle chain.

[7] Effects The fastener 1 according to an embodiment of the present invention includes a first connecting member 10 attached to one end of the connected member 30, and a first connecting member 10 attached to the other end of the connected member 10. A second connecting member 20 that can be connected to the connecting member 10 is provided. The first connecting member 10 has a first tip portion 11, a first grip portion 12 provided at one end of the first tip portion 11, a first magnet 13, and a second connecting member 10. The member 20 includes a second tip portion 21 into which the first tip portion 11 can be fitted, a second grip portion 22 provided at one end of the second tip portion 21, and a second magnet 23. The second tip 21 has a recess 21a that is open in the direction in which the first tip 11 is attached and removed, and an opening 21b formed on the side surface of the recess.
In the fastener 1, when the first connecting member 10 and the second connecting member 20 are connected, the first tip 11 is moved into the recess 21a due to the magnetic force of the first magnet 13 and the second magnet 23. It has a structure that fits into the

Such a fastener 1 has a structure that does not easily come off even when an external force is applied in a direction perpendicular to the direction of magnetic force, and can be easily attached and detached if an external force is applied from a specific direction.

In the case of a necklace as an accessory, it must be attached or removed at the back of the neck where the person cannot see it, and in the case of a bracelet as an accessory, it must be attached or removed with one hand. Necklaces and bracelets made with can be easily attached in place using magnetic force.

With the fastener 1 according to the present invention, the user can easily determine the direction in which to remove the fastener 1 by feeling it with his or her fingers, without looking at the fastener 1 visually. Moreover, the fastener 1 according to the present invention can be removed with a slight force based on the lever principle in a specific direction.
On the other hand, since the fastener 1 according to the present invention has a structure that can only be removed in a specific direction, it is less likely to come off due to external force compared to conventionally known fasteners.

1 Fastener 10 First connecting member 11 First tip portion 12 First gripping portion 13 First magnet 14 First through hole 20 Second connecting member 21 Second tip portion 22 Second gripping portion 23 Second magnet 24 Second through hole 30 Connected member 41 First connecting portion 42 Second connecting portion

Claims (4)

a first connecting member attached to one end of the connected member;
a second connecting member attached to the other end of the connected member and connectable to the first connecting member;
The first connecting member has a first tip, a first grip provided at one end of the first tip, a first magnet, and a first through hole,
The second connecting member includes a second tip portion into which the first tip portion can be fitted, a second grip portion provided at one end of the second tip portion, and a second magnet. , a second through hole,
The second tip has a recess that is open in the direction in which the first tip is attached and removed, and an opening formed on a side surface of the recess,
When the first connecting member and the second connecting member are connected, the first tip fits into the recess due to the magnetic force of the first magnet and the second magnet. A fastener characterized by: The first tip of the first connecting member has a spherical shape, and the second tip of the second connecting member has a shape that encompasses the shape of the first tip. The fastener according to claim 1. The first tip of the first connecting member has a triangular pyramid shape, and the second tip of the second connecting member has a shape that encompasses the first tip. The fastener according to claim 1, characterized in that: The first gripping portion is moved in the attachment/detachment direction of the recessed portion of the second tip, and the first connecting member can be easily attached/detached from the second connecting member. The fastener according to any one of claims 1 to 3, characterized in that:

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