JP2021065565A - Fastener - Google Patents

Abstract

To provide a fastener which has a simple structure, excellent in operation property and excellent in durability.SOLUTION: A male hook 20 comprises: a main body part having a protrusion edge part 203; an engagement part 210; a first magnet; and energization means for energizing the engagement part. A female hook 30 comprises a substrate 300 which is formed into a substantially cylindrical shape in whole body and has a female hole on a top face thereof. The female hole is provided along a periphery of the substrate. The female hook has an insertion hole formed by cutting a part of the substrate in a radial direction. On a position deviated inward of the female hole from the position of the insertion hole, on an inner bottom part of the substrate, a second magnet 310 is provided. On the inner bottom part, on a position deviated to a radial direction from a center position of the inner bottom part, an engagement hole to which a tip part 212 of the engagement part can be engaged, is provided. The male hook engaged to inside of the substrate from the female hole is moved to a position where the first magnet is attracted to the second magnet, at the position, the engagement part is engaged to the engagement hole, and the protrusion edge part contacts an inner wall of the female hole thereby being engaged to the female hook.SELECTED DRAWING: Figure 3

Description

The present invention relates to a fastener used for a bag such as a second bag or a school bag, a wallet, various belts, etc., and for engaging between an engaging portion to be fastened and an engaged portion.

Push hooks are widely used as fasteners used in wallets, second bags, and the like. As the push hook, for example, as shown in Patent Document 1, the tip peripheral portion of the leading portion, which is composed of substantially convex strips as a whole and has a substantially cylindrical shape, protrudes outward in the radial direction from the rear peripheral portion. A male hook having a protruding edge at the tip peripheral portion of the head portion and a substantially cylindrical base having a female hole for engaging the head portion of the male hook at the center of the upper surface forming a circle are provided. Inside, the male hook is made to have an overall annular shape that engages in the hole formed around the head of the male hook, which has a substantially cylindrical shape with the front portion of the male hook interlocked from the female hole. It comprises a female hook that positions an engaging body that can be engaged with or disengaged from the ridge portion of the female hole in a state of being placed inside the female hole. This type of fastener allows the male hook to be supported by the engaging part to be fastened and the female hook to be supported by the engaged part, allowing the engaging part and the engaged part to be engaged or disengaged. ing.

Japanese Unexamined Patent Publication No. 2009-72329

However, the fastener described in Patent Document 1 requires an engaging body, which increases the number of parts, complicates the manufacturing process, and uses the elastic force of the engaging body usually formed of an elastic body. There is a problem that the male hook is easily disengaged from the female hook due to the decrease due to the repetition.

The present invention has been made by paying attention to such conventional defects, and an object of the present invention is to provide a fastener having a simple structure, excellent operability, and excellent durability.

In order to solve the above problems, the fastener of the present invention is a fastener composed of a male hook and a female hook, and the male hook has a substantially columnar shape as a whole and has a protruding edge portion protruding in the radial direction. The direction in which the main body, the engaging portion provided in the main body so as to be displaceable along the central axis of the main body, the first magnet provided near the central axis of the main body, and the tip side of the engaging portion are separated from the main body. The female hook is provided with a substantially cylindrical substrate having a female hole on the upper surface, and the female hole is provided along the outer periphery of the substrate, and the diameter of the substrate is provided. An insertion port is formed by cutting out a part of the direction, and a second magnet is arranged at a position shifted inward of the female hole from the position of the insertion port on the inner bottom portion of the substrate, and a second magnet is arranged at the inner bottom portion. An engagement hole is provided at a position corresponding to the two magnets so that the tip of the engagement part can be inserted, and the male hook that is engaged inside the substrate from the insertion port of the female hole has the first magnet as the second magnet. It is characterized in that it moves to a position facing it, and at this position, the engagement portion engages with the engagement hole and the ridge portion abuts on the inner wall of the female hole to engage with the female hook.

In the fastener of the present invention, the engaging portion has a columnar shape arranged concentrically with the central axis of the main body portion, and the first magnet is concentric with the central axis of the main body portion and the central axis of the engaging portion. It is preferably in the shape of an arranged ring.

In the fastener of the present invention, it is preferable that the first magnet is fixed at a position substantially the same as the ridge portion in the direction in which the central axis extends.

In the fastener of the present invention, the urging means is preferably a compression coil spring in which a cylindrical engaging portion is inserted, one end being supported by the main body portion and the other end being supported by the engaging portion.

In the fastener of the present invention, it is preferable that the second magnet has a ring shape in which an engagement hole is formed by penetrating the center in the thickness direction.

According to the present invention, it is possible to provide a fastener having excellent operability and excellent durability with a simple configuration.

It is a perspective view which shows the 2nd bag which attached the fastener which concerns on embodiment of this invention. FIG. 5 is a perspective view showing a state in which the male hook of the fastener is disengaged from the female hook in the second bag of FIG. It is a perspective view which showed the part A of FIG. 2 enlarged. It is a perspective view which shows the structure of the male hook and the female hook in the state before engaging. It is an exploded perspective view which shows the structure of a male hook and a female hook. It is sectional drawing which shows the process of engaging a male hook and a female hook with each other. It is sectional drawing which shows the process of disengagement of a male hook and a female hook.

Hereinafter, the fastener according to the embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view showing an external configuration of a bag 10 (bag) using the fastener 100 according to the present embodiment, and FIG. 2 is a perspective view showing a state in which a part of the folded lid 12 of the bag 10 is opened. FIG. 3 is an enlarged view of a portion A in FIG. FIG. 4 is a perspective view showing the structures of both before engaging the male hook 20 with the female hook 30, and FIG. 5 is an exploded perspective view showing the structures of the male hook 20 and the female hook 30.

FIG. 6A shows a state in which the male hook 20 and the female hook 30 face each other, and FIG. 6B shows a state in which the male hook 20 is inserted into the female hook 30 from the state of (a). Indicates a state in which the male hook 20 slides from the state (b) and engages with the female hook 30. FIG. 7A shows a state in which the male hook 20 and the female hook 30 are engaged with each other, FIG. 7B shows a state in which the engagement pin 210 is pulled up from the state in (a), and FIG. 7C shows a state in which the engagement pin 210 is pulled up. It shows a state in which the male hook 20 and the female hook 30 are disengaged from the state of b) and the male hook 20 is separated from the female hook 30. 6 (a), (b), (c) and 7 (a), (b), (c) show that the male hook 20 and the female hook 30 face each other along the BB'line of FIG. , Inserted, separated, or engaged.

In each figure, the Z1-Z2 direction is the vertical direction when the folding lid 12 is closed and the male hook 20 and the female hook 30 are opposed to each other (in the state of FIG. 1), and the X1-X2 direction is the horizontal direction. That is, the width direction of the bag 10 and the Y1-Y2 direction are the front-rear direction. The Z1 direction is an upward direction, the Z2 direction is a downward direction, the Y1 direction is a forward direction, and the Y2 direction is a rear direction. In the following description, the direction shown in FIG. 1 shall be referred to unless otherwise specified.

The fastener 100 according to the present embodiment is, for example, in the bag 10 (second bag) shown in FIGS. 1 and 2, a front piece in which the male hook 20 is engaged with the folding lid 12 covering the opening 11 and the folding lid 12 is engaged with the folding lid 12. It is formed so as to dispose a female hook 30 on the surface (front surface) of the 13 (see FIGS. 1 to 3). The front piece 13 constitutes the surface of the main body 14 of the bag 10, the opening 11 is open at the upper part of the storage portion which is the space inside the main body 14, and the folded lid 12 serves as the lid portion for storing the bag 10. It extends downward from the upper part of the main body 14 so as to cover the portion. The male hook 20 and the female hook 30 close the folding lid 12 along the D1 direction (FIG. 3) so that the male hook 20 and the female hook 30 face each other, and further engage the male hook 20 with the female hook 30. By doing so, they are fixed to each other. In this fixed state (FIG. 1), the engagement can be disengaged by pulling up the operating portion 214 of the male hook 20 in the direction away from the front piece 13 (Y1 direction).

Here, when applying to a school bag instead of the bag 10, a male hook 20 is provided on the belt portion, and a female hook 30 is provided on the mounting bracket on the bottom surface of the school bag.

<Male hook>
As shown in FIG. 5, the male hook 20 includes a main body portion 200, a fixing member 204, an engagement pin 210 as an engagement portion, a first magnet 220, and a compression coil spring 230 as an urging means. ..

As shown in FIG. 4, the main body 200 is arranged on the first base 201 arranged on the outside (Y1 side) of the folding lid 12 and on the inside of the folding lid 12 (the side facing the front piece 13 and the Y2 side). It is provided with a second base 202 to be formed. The first base 201 and the second base 202 are screwed together with the folded lid 12 sandwiched along the common central axis AX1 to form a substantially columnar shape as a whole and are fixed to the folded lid 12.

At the rear end (Y2 side) of the second substrate 202, a protruding edge portion 203 protruding in the radial direction about the central axis AX1 is provided.

In the internal space 200a surrounded by the first base 201 and the second base 202, a hollow cylindrical fixing member 204, a compression coil spring 230, and a ring-shaped first magnet 220 are arranged in this order from the first base 201 side. To. These are arranged so that their respective central axes coincide with the central axis AX1. The fixing member 204 and the first magnet 220 are fixed in the first base 201.

As shown in FIGS. 6A to 6C, the first magnet 220 is fixed to the second substrate 202 at a position substantially the same as the ridge portion 203 in the direction along the central axis AX1. That is, the first magnet 220 is located substantially at the rear end of the male hook 20. Further, the first magnet 220 has magnetic poles having opposite polarities arranged on both end faces in the front-rear direction (Y1-Y2 direction).

As shown in FIGS. 6A to 6C, the engagement pins 210 are arranged inside the first substrate 201 so that the central axis coincides with the central axis AX1, that is, extends concentrically. Has been done. The engagement pin 210 is provided with a substantially cylindrical tip portion 212 having a diameter larger than that of the shaft portion 211 at the end portion of the cylindrical shaft portion 211 on the ridge portion 203 side (Y2 side). The tip surface of the portion 212 has a hemispherical shape in which the tip side is convex. The front end portion 213 of the shaft portion 211 on the first base 201 side is inserted into the compression coil spring 230, the fixing member 204, and the first base 201 in order from the ridge portion 203 side, and is inserted into the outside of the first base 201. It extends to and is screwed into the operation unit 214. As a result, the engagement pin 210 can be displaced relative to the main body 200 along the central axis AX1 of the main body 200.

Here, the inner diameter of the compression coil spring 230 is larger than the outer diameter of the shaft portion 211 of the engagement pin 210 and smaller than the outer diameter of the tip portion 212. Therefore, as shown in FIG. 6A, one end of the compression coil spring 230 into which the engagement pin 210 is inserted comes into contact with the tip portion 212 of the engagement pin 210 and is prevented from coming off. On the other hand, the end of the compression coil spring 230 on the operating portion 214 side is in contact with the fixing member 204. Therefore, one end of the compression coil spring 230 is supported by the main body 200 via the fixing member 204, and the other end is supported by the engagement pin 210. From this configuration, the engagement pin 210 is urged by the elastic force of the compression coil spring 230 toward the ridge portion 203 side and further toward the side away from the second base 202 along the central axis AX1 of the main body portion 200. In the state where no external force is applied (FIG. 6A), the second substrate 202 extends to the outside. On the other hand, when the operation unit 214 integrated with the engagement pin 210 is pulled up along the central axis AX1 in a direction away from the first base 201 against the elastic force of the compression coil spring 230, the engagement is engaged. The input pin 210 can be displaced to a position where the tip portion 212 is substantially hidden in the ridge portion 203 (see FIG. 7B).

<Female hook>
As shown in FIG. 5, the female hook 30 includes a base 300 having a substantially cylindrical shape and having a central axis AX2, a ring-shaped second magnet 310, and a disk-shaped support plate 320.

The substrate 300 is provided with a female hole 301 on the upper surface (front side (Y1 side) surface), and an engagement hole 304 (first engagement hole) penetrating in the thickness direction in the inner bottom portion 302 on the rear side (Y2 side). ) Is provided.

The female hole 301 is provided along the outer circumference of the substrate 300. The female hole 301 is partially cut out in the radial direction, and the protruding edge portion 203 of the male hook 20 can be inserted along the plane direction of the base 300 (the direction orthogonal to the central axis AX2 of the base 300). The insertion port 301a is formed. On the rear side (inner bottom portion 302 side) of the inner surface of the female hole 301, an engaging groove 303 is provided so as to be recessed outward in the radial direction and into which the ridge portion 203 of the male hook 20 can be engaged. ing.

The engagement hole 304 is provided so as to form a circular shape in a plan view taken along the central axis AX2 of the substrate 300. The central axis AX3 of the engagement hole 304 is parallel to the central axis AX2 of the substrate 300 and is displaced upward (Z1 side) in the radial direction. As a result, the engagement hole 304 is provided at a position shifted inward from the position of the insertion port 301a in the plan view, and a part of the upper side of the outer circumference of the engagement hole 304 is the engaging groove 303. It overlaps with or is hidden by the engaging groove 303.

A second magnet 310 having an outer diameter substantially the same as the inner diameter of the engagement hole 304 is inserted and fixed in the engagement hole 304. The second magnet 310 is arranged so that its central axis rests on the central axis AX3 of the engagement hole 304. Therefore, the second magnet 310 is arranged at the inner bottom portion 302 at a position shifted upward in the radial direction from the central position of the inner bottom portion 302 (the position of the central axis AX2). In the second magnet 310, magnetic poles having opposite polarities are arranged on both end faces in the front-rear direction (Y1-Y2 direction). These polarities are set in the opposite direction to the first magnet 220. As a result, when the ridge portion 203 of the male hook 20 is engaged into the inside of the base 300 from the female hole 301, the first magnet 220 approaches the inner bottom portion 302 of the base 300 with respect to the second magnet 310. It is ready for adsorption or suction (see FIG. 6B).

The second magnet 310 is provided with a hole portion 311 as a second engagement hole that penetrates in the thickness direction along the central axis (central axis AX3 of the engagement hole 304). The hole 311 has an inner diameter that allows the tip 212 of the engagement pin 210 to be inserted (engaged).

As shown in FIG. 4, the base 300 to which the second magnet 310 is fixed and the support plate 320 are fixed to each other by a plurality of screws 330 with the front piece 13 interposed therebetween, whereby the female hook 30 is fixed to the front piece 13 by a plurality of screws 330. Is fixed to.

<Engagement and disengagement of male hook and female hook>
First, as shown in FIG. 6A, the male hook 20 and the female hook 30 are arranged so as to face each other in the front-rear direction (Y1-Y2 direction). At this time, the male hook 20 is arranged so that the central axis AX1 of the main body 200 is located below the central axis AX2 of the base 300 (Z2 side). As a result, when the male hook 20 is displaced toward the female hook 30 along the front-rear direction, it is possible to prevent the ridge portion 203 from colliding with the front surface of the female hole 301, and the following engagement operation is smoothed. You can proceed to. At this time, the engagement pin 210 extends downward from the second base 202 due to the elastic force of the compression coil spring 230.

Next, as shown in FIG. 6B, the second base 202 side of the male hook 20 is inserted into the female hole 301 of the female hook 30. When the second base 202 is inserted until it comes into contact with the inner bottom portion 302, the tip portion 212 provided at the rear end portion (the end portion on the Y2 side) of the engagement pin 210 is pressed against the inner bottom portion 302, whereby the inner bottom portion 302 is pressed. The engagement pin 210 is displaced so as to retract toward the first base 201 against the elastic force of the compression coil spring 230 while maintaining contact with the first base 201, and is housed in the second base 202.

In the state shown in FIG. 6A, the first magnet 220 in the male hook 20 and the second magnet 310 in the female hook 30 are arranged at positions shifted in the vertical direction (Z1-Z2 direction). There is. From this state, as shown in FIG. 6B, when the distance between the first magnet 220 and the second magnet 310 in the front-rear direction (Y1-Y2 direction) is reduced, the first magnet 220 and the second magnet 220 are brought closer to each other. A magnetic attraction is generated with the magnet 310. Due to this attractive force, the second base 202 of the male hook 20 is substantially in contact with the inner bottom portion 302 from the state shown in FIG. 6 (b) to the position where the first magnet 220 and the second magnet 310 face each other, and is on the upper side (Z1). Slide to the side) (state of FIG. 6 (c)). As a result, in the vertical direction, the engagement pin 210 reaches the position facing the hole 311 of the second magnet 310, so that the engagement pin 210 moves to the rear side (Y2 side) due to the elastic force of the compression coil spring 230. The tip portion 212 is displaced and inserted into the hole portion 311 so that the tip end surface abuts on the inner bottom portion 302. As a result, the vertical movement of the male hook 20 is restricted. Further, as the male hook 20 slides upward, the ridge portion 203 penetrates into the engaging groove 303 of the female hole 301 and engages with the engaging groove 303, so that the male hook 20 also moves in the front-rear direction. Be regulated. According to these regulations, the state in which the first magnet 220 and the second magnet 310 are attracted to each other is maintained, and the male hook 20 and the female hook 30 are engaged and fixed to each other.

In order to release the engaged state (FIGS. 6 (c) and 7 (a)) in which the male hook 20 and the female hook 30 are fixed, first, the engagement pin 210 is pulled up to the front side (Y1 side) (FIG. 6). 6 (b) state). As a result, the male hook 20 can be slid downward (Z2 side) because the slide movement is not restricted by the engagement pin 210. When the male hook 20 is slid downward, the engagement between the ridge portion 203 and the engaging groove 303 is released, so that the male hook 20 can be moved in the front-rear direction. By sliding the male hook 20 downward, the distance between the first magnet 220 and the second magnet 310 increases, and the magnetic attraction between the two magnets weakens, making it easier to move the male hook 20 from the female hook 30. It can be separated and the engaged state can be released (FIG. 7 (c)).

As described above, by inserting the male hook 20 into the female hole 301 of the female hook 30, a magnetic attraction force is generated between the first magnet 220 and the second magnet 310, and this attraction force causes the male hook. Since the female hook 30 and the male hook 20 are engaged with each other and fixed by sliding the 20, the female hook 30 and the male hook 20 can be securely fixed by a simple operation. Further, since the fixing is maintained by the magnetic attraction force and the engagement between the ridge portion 203 and the engaging groove 303, high durability can be obtained with a simple configuration.

A modified example will be described below.
In the above embodiment, the first magnet 220 has the engagement pin 210 inserted in a ring shape, but if it is arranged in the vicinity of the central axis AX1 of the main body 200, in other words, in the vicinity of the engagement pin 210, It may have a shape other than a ring shape. For example, the engagement pin 210 may be arranged close to each other without being inserted.

Further, the first magnet 220 may be configured to be displaceable integrally with the engagement pin 210. As a result, the first magnet 220 is also pulled up by pulling up the engagement pin 210 when the male hook 20 and the female hook 30 are disengaged, so that the attractive force between the first magnet 220 and the second magnet 310 is reduced. This makes it possible to easily disengage.

The female hole 301 is provided along the outer circumference of a substantially cylindrical base 300, and a part in the radial direction is cut out to form an arc shape in a plan view (state viewed along the central axis AX2). It had been. On the other hand, the range of the notch of the female hole can be arbitrarily set and can be a wider range, and the female hole can be divided into two or three or more. For example, in a plan view, it may be configured as two wall portions facing each other with the central axis AX2 in between. Similar to the female hole 301, an engaging groove into which the ridge portion 203 of the male hook 20 can be engaged is formed inside these two wall portions, and the ridge portion 203 is engaged with the butt portion 203. In this configuration, instead of the engagement hole 304, an engagement hole is provided at the center of the substrate 300 in a plan view, and the second magnet is arranged there. The second magnet is arranged at a position shifted inward of the female hole formed by the two wall portions from the position of the insertion port sandwiched between the two wall portions. With such a configuration, two insertion ports can be provided symmetrically with respect to the central axis AX2, so that the male hook can be inserted into the female hook in two directions, for example, a length adjusting belt. And useful.

In the above embodiment, the compression coil spring 230 is used as the urging means, but other elastic members may be used as long as the engagement pin 210 can be urged.
Although the present invention has been described with reference to the above-described embodiment, the present invention is not limited to the above-described embodiment, and can be improved or modified within the purpose of improvement or the idea of the present invention.

As described above, the fastener according to the present invention is useful in that it has a simple structure, is excellent in operability, and is excellent in durability.

10 bags
11 Opening 12 Folded lid 13 Table piece 14 Main body 20 Male hook 30 Female hook 100 Fastener 200 Main body 200a Space 201 1st base 202 2nd base 203 Edge part 204 Fixing member 210 Engagement pin (engagement part)
211 Shaft 212 Tip 213 Front end 214 Operation 220 1st magnet 230 Compression coil spring (biasing means)
300 Hypokeimenon 301 Female hole 301a Insertion port 302 Inner bottom 303 Engagement groove 304 Engagement hole 310 Second magnet 311 Hole (engagement hole)
320 Support plate 330 Screws AX1, AX2, AX3 Central axis

Claims (5)

It is a fastener consisting of a male hook and a female hook.
The male hook
The main body, which has a substantially columnar shape and has a protruding edge that projects in the radial direction,
An engaging portion provided on the main body so as to be displaceable along the central axis of the main body,
A first magnet provided in the vicinity of the central axis of the main body and
A urging means for urging the engaging portion in a direction in which the tip end side of the engaging portion is separated from the main body portion is provided.
The female hook comprises a substantially cylindrical substrate with a female hole on the upper surface.
The female hole is provided along the outer circumference of the substrate, and an insertion port is formed by cutting out a part of the substrate in the radial direction.
A second magnet is arranged at a position shifted inward of the female hole from the position of the insertion port on the inner bottom portion of the substrate.
An engagement hole is provided in the inner bottom portion at a position corresponding to the second magnet so that the tip end portion of the engagement portion can be engaged.
The male hook engaged in the inside of the substrate from the insertion port of the female hole moves to a position where the first magnet faces the second magnet, and at this position, the engaging portion engages. A fastener characterized in that it engages with the female hook by engaging with the hole and having the ridge portion abut on the inner wall of the female hole. The engaging portion has a columnar shape arranged concentrically with the central axis of the main body portion.
The fastener according to claim 1, wherein the first magnet has a ring shape arranged concentrically with the central axis of the main body portion and the central axis of the engaging portion. The fastener according to claim 2, wherein the first magnet is fixed at a position substantially the same as the ridge portion in a direction in which the central axis extends. The urging means is a compression coil spring in which the cylindrical engaging portion is inserted therein, and one end is supported by the main body portion and the other end is supported by the engaging portion according to claim 2 or 3. Fasteners described in. The fastener according to any one of claims 1 to 4, wherein the second magnet has a ring shape in which the engagement hole is formed by penetrating the center in the thickness direction.

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