JPH03260409A - Engaging tool - Google Patents

Abstract

PURPOSE:To prevent an engagement from coming off due to engagement of the space on the small diameter side and an overhang guard part by action of detaching force, by providing the case of an attraction tool with a hole, which has space between an inner peripheral face and an inserted space and consists of small diameter section and large diameter section, and providing an overhang guard part on the free end side of a ferromagnetic projection of an attracted tool. CONSTITUTION:A permanent magnet 1 is provided with an inserted space 5, and an attraction tool A is formed out of a ferromagnetic plate 2, which has a ferromagnetic projection 2a at one magnetic pole a, and a case 4, which covers the permanent magnet 1 and is fixed to the ferromagnetic plate 2 by means of an engaging claw 4c at the other pole. An opening 4a which is provided in this case 4 is formed by a small diameter section 4a' and a large diameter section 4a'', and is formed in such a way that it becomes smaller than the inserted space 5. An overhang guard part 3b is provided on the free end side of a ferromagnetic projection 3a of a ferromagnetic plate 3 of an attracted tool B. Consequently, the overhang guard part 3b is fitted into the space on the small diameter section 4a' even if force acts to detach the attraction tool A and the attracted tool B, preventing the engagement from coming off.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention is an engaging tool that uses a permanent magnet and is made up of an attracting tool and an attracting tool, and is an engaging tool that uses a permanent magnet to move the attracting tool or the attracting tool to one side. The present invention relates to an engagement tool that is prevented from being unlatched and accidentally pulled apart.

[Prior Art] A conventional engagement tool using a permanent Mi stone includes a ferromagnetic plate 52 attached to one magnetic pole surface of a permanent magnet 51 having a hole 51a extending from one magnetic pole surface to the other magnetic pole surface. A ferromagnetic plate 53 is detachably attached to the other magnetic pole surface, and a ferromagnetic protrusion 52a or 53a protruding from both or one of the ferromagnetic plates 52, 53 is inserted through the hole 51a. There is an engaging tool that is designed to be attracted to the other ferromagnetic plate 52 or 53, or the other ferromagnetic protrusion 52a or 53a. Permanent magnet 51, ferromagnetic plate 52, and ferromagnetic protrusion 52
A device was used in which the suction device A was integrally attached to the suction tool A.

[Problems to be Solved by the Invention] The engaging tool configured as described above and attached to a bag, etc. can be used to lift the lid of the bag, etc. diagonally upward in a direction away from the bag body, for example. A polar action using the upper part of the lid as a fulcrum works, and the suction engagement between suction device B and suction device A is easily released, so when carrying such a bag, etc., the bottom end of the lid is There was an inconvenience in that if the object C was touched and lifted, the lid would open without the user's knowledge.

In addition, for example, in the case of an engaging tool attached to a seam of clothing, etc. or a box and a lid, etc., when the engaging tool is pulled in the direction of separating the suction tool A and the suction target B, the suction will occur. Since they are engaged by force, they are relatively easy to disengage.

It is an object of the present invention to provide an engaging tool that prevents such problems.

[! ! Means for Solving the Problem] The present invention is an engagement tool provided by HJ in order to achieve the above object, and includes at least a permanent magnet 1 and a magnetic pole surface a of one of the permanent magnets 1. It consists of a suction device A having a ferromagnetic plate 2, and an adsorbed device Bε having at least a ferromagnetic plate 3 and a ferromagnetic protrusion 3a protruding from the ferromagnetic plate 3. The bell 5 during insertion of the ferromagnetic protrusion 3a of the attracted tool B
is provided between the H18i surfaces a and b of the permanent magnet 1, and as the ferromagnetic plate 3 of the attracted tool B is attracted to the attraction surface formed by the other magnetic pole face of the permanent magnet 1, , the ferromagnetic protrusion 3a connects the ferromagnetic plate 2 through the insertion gap [5].
Or, on the ferromagnetic protrusion 2a protruding from the ferromagnetic plate 2,
It is an engagement tool designed to be

The suction tool A is covered by a case 4 having an opening 4a on the side of the insertion gap 51160, and the opening 4a of the case 4 is shaped like a deformed hole consisting of a small diameter part 4a and a large diameter part 41. , at least the small diameter portion 4a' of the opening 4a.
The ferromagnetic protrusion 3a of the adsorbed tool B has an overhanging flange 3b on at least a part of the free end side. It is structured as follows.

Further, in some cases, a circumferential rising edge 4b is provided on the periphery of the case surface on the suction surface side of the suction device A, and the permanent magnet 1 is provided with a ring having a through hole extending over both magnetic pole surfaces a and blIJll. In some cases, the permanent magnet 1 is a plate-shaped permanent magnet 1, and in other cases, the permanent magnet 1 is made up of a plurality of permanent magnet pieces 1° arranged in an annular plate shape.A bent edge 4b is provided at the periphery of the case opening 4a. , the bent edge 4b on the side of the large diameter portion 4a has a small diameter 41
It is configured to be longer than the bent edge 41 on the side.

[Function] In the above-mentioned engagement tool, when the attachment members are pulled toward the side where they are separated from each other, the ferromagnetic protrusion 3a of the adsorbed tool B is brought to the side of the small diameter portion 4a' of the case opening 4a of the adsorption tool A. If they are installed so that they fit together, even if a force is applied to layer the suction tool A and the suction target B, the overhanging flange 3b of the ferromagnetic protrusion 3a will stick to the suction tool A.
The distance between the inner circumferential surface of the opening 4a of the case 4 on the small diameter portion 41 side and the insertion distance l! ! Since it enters the gap 5'' between the inner circumferential surface of 5 and the inner circumferential surface of 5, the engagement does not come off.

In addition, in the case of the suction device A in which a circumferential rising edge 4b is provided on the periphery of the case surface on the suction surface side, the magnetically recorded card, tape, etc. is not engaged with the suction device B. Even when the cards, tapes, etc. come into contact with the suction surface of the suction device A, the protruding edge 4b acts as a bridge, and the magnetic recording is not destroyed by the lines of magnetic force.

In addition, since a bent edge 4b" is provided on the periphery of the case opening 4a, which is longer on the large diameter section 41 side than on the small diameter section 41 side, when removing the latch, the bent edge on the large diameter section 41 side 4b'' as a guide, by applying the ferromagnetic protrusion 3a of the attracted tool B to it and pulling it apart, the overhanging flange 3b can be easily removed without being caught.

[Embodiments] Examples of the engaging tool according to the present invention will be described below with reference to the drawings.

In FIG. 1, A is an adsorption tool, and 1 is a permanent magnet, including a ferrite magnet, a rare earth magnet, a plastic magnet,
A rubber magnet or the like is used, and a thank-you insertion gap 5 is provided from one magnetic pole face a to the other magnetic pole face.

2 is a disk-shaped ferromagnetic plate with the same diameter as the magnetic pole surface a that is adsorbed onto one magnetic pole surface a of the permanent magnet 1, and 2a is erected on this ferromagnetic plate 2 toward the inside of the through hole. It is a ferromagnetic protrusion.

Reference numeral 4 denotes an inverted dish-shaped non-magnetic case in which an opening 0 having an inwardly bent edge 4b is provided in the top wall, and the opening 4a of this case 4 is shown in FIGS. 3 to 6. As shown, a large diameter portion 4 larger than an H circle is connected at the diameter position of a semicircular small diameter portion 4a.
The permanent magnet 1, the ferromagnetic protrusion 2a, and the ferromagnetic plate 2 are connected to the permanent magnet 1 in the case 4. 1 is held inward, and is locked by bending a plurality of locking claws 4C provided on the lower edge of the case 4 onto the surface of the ferromagnetic plate 2, thereby forming the suction tool A. .

The through hole of the permanent magnet 1 may be slightly larger than the opening 4a and have an oval shape similar to the opening 4a, as shown in Figures 4 and 5, or a hole with a larger diameter than the opening 4a. In some cases, the permanent magnet 1 is an original plate-like permanent magnet with a through hole extending between both magnetic pole faces a and b, and in other cases, as shown in Fig. 6, a plurality of permanent magnet pieces 1° are formed into an original plate-like permanent magnet. inserted in parallel with l
I! In some cases, it has a value of 5.

And the bent edge 4 on the small diameter portion 41 side of the bent Ji4b
There is an air gap 1 between the inner circumferential surface of b' and the inner circumferential surface of the insertion gap 5 in the permanent magnet 1! ! 5゛ is formed.

Furthermore, as shown in FIGS. 7 and 8, the bent edge 4b'' on the large diameter portion 4a'' side is longer than the bent edge i4b' on the small diameter portion 4a' side. .

3 is a disk-shaped ferromagnetic plate that is attracted to the attraction surface formed by the magnetic pole face of the permanent magnet 1 in the attraction tool Ae, and a ferromagnetic protrusion 3a is protruded from approximately the center of the ferromagnetic plate 3 to cover it. A suction device B is constructed, and a protruding collar portion 3b as shown in FIGS.
is provided.

As shown in FIG.
The ferromagnetic plate 3 is attracted to the attraction surface formed by the magnetic pole face of the permanent magnet l, and the ferromagnetic protrusions 2a and 3a are also attracted to each other, and the ferromagnetic plate 2 has protrusions as shown in FIG. Not provided,
There are cases in which the ferromagnetic protrusions 3a are provided only on the ferromagnetic plate 3 so that the ferromagnetic plate 3 is attracted to the attracting surface, and the ferromagnetic protrusions 3a are directly attracted to the ferromagnetic plate 2.

In addition, the ferromagnetic protrusions 2a and 3a may be manufactured separately from the ferromagnetic plate 2.3 and caulked to the ferromagnetic plate 2.3.
There are cases in which they are integrally formed by welding or brazing, and cases in which they are formed integrally with the ferromagnetic plates 2.3.

In this engagement tool, since the bent i4b" on the large diameter part 41 side of the opening 4a of the case 4 in the suction tool A is made long, a ferromagnetic protrusion 3a is formed on the bent edge 4b" of the large diameter part 41. Since the overhanging flange 3b is not caught, the attachment is released by aligning on the large diameter portion 41 side.

FIG. 10 shows an embodiment in which a circumferential protrusion 4d is provided on the periphery of the suction side surface of the case 4 of the suction device A, and this protrusion 4d allows magnetic cards and magnetic The tape forms a bridge so that it does not come into close contact with the attracting surface, and magnetic recording is prevented from being adversely affected by lines of magnetic force.

In addition, as attachments for the suction tool A and the suction target B, a small diameter culm 2a' provided coaxially on the ferromagnetic protrusion 2a or 3a,
3a' is inserted into a hole made approximately at the center of the ferromagnetic plate 2.3 from one side, and the 13th plate attached to the other side is inserted.
As shown in the figure, the ferromagnetic protrusions 2a, 3a' are inserted into a hole in the center of a leg plate 6 having a pair of legs 6s bent in a U shape and crimped onto the leg plate 6. Leg board 6
There are cases where the leg plate 6 is fixed to a ferromagnetic plate as shown in FIG.
As shown in Fig. 5, six funnel-shaped caulking vibrators 7 with one end expanded are attached to the surface of a ferromagnetic plate 2.3, or as shown in Fig. 'tS16, the periphery of the expanded end of the caulking vibrator 7 is attached to a circular plate. Wrap it around the peripheral edge of the ferromagnetic plate to make it integral, and swage this disc part to the ferromagnetic plate using the small diameter frame of the ferromagnetic protrusion, and swage it into the hole of a mounting member such as a bag to which the engagement tool is attached. ferromagnetic protrusions 2a, 3a as shown in FIG.
The free end side of the small diameter frame portions 2a' and 3a' is shaped like a bolt or a wood screw to provide a mounting surface (for screwing).
As shown in the figure, the free ends of the narrow-diameter frames 2a' and 31 provided on the ferromagnetic protrusions 2a and 3a are shaped like bottles and inserted into the mounting surface, and the cross-cutting intersections of the steel pieces 8 with cross-shaped cuts are made. A type in which the tips of the narrow-diameter frame portions 2a', 3a' are inserted and attached to the portion is used.

In addition, in order to attach an engaging tool such as a necklace to the cheno, as shown in FIG. is bent along the side surface of the suction tool A, and a portion 3C that is bent in the same plane as the ferromagnetic plate 2 is provided with a locking portion for the chino 9.

The above-mentioned engagement tool can be installed by attaching the suction tool A with the small diameter part 4a' side of the opening 4a of the case 4 facing the seam of clothing, the direction in which a bag or the like and a lid, or a box and a lid, etc. are pulled apart. The overhanging flange 3b of the ferromagnetic protrusion 3a of the suction tool B enters into the gap 5' between the inner circumferential surface on the small diameter portion 41 side of the opening 4a and the inner circumferential surface of the insertion gap 5 of the permanent H1 stone 1. However, needless to say, in the case of a force that pulls the suction target B away in a direction parallel to the suction surface of the suction tool A, the retention is maintained not only in the case of a force that pulls the suction target B away in a direction perpendicular to the suction surface of the suction tool A.

[Effect] The engagement tool according to the present invention is configured as described above,
In particular, the suction tool is covered with a case having an opening on the opening side of the insertion gap, and the opening of the case is in the shape of a deformed hole consisting of a small diameter part and a large diameter part, and at least the small diameter of the opening There is a gap between the inner circumferential surface of the engaging tool and the inner circumferential surface of the insertion gap, and the ferromagnetic protrusion of the attracting tool has an overhanging flange on at least a part of the free end side. If the attachment members are installed so that the ferromagnetic protrusion of the suction tool fits into the small diameter side of the case opening of the suction tool when the attachment members are pulled toward the side to be separated, the suction tools can be attached to each other. Even if a force is applied to separate the suction target, the projecting flange fits into the gap on the small diameter side of the opening, so that the engagement does not come off.

Also, the circumference of the case opening has a bent edge on the large diameter side that is longer than the small diameter side, so when removing the retainer, use the bent edge on the large diameter side as a guide to guide the suction. If the ferromagnetic protrusion of the tool is applied to this and pulled apart, the overhanging flange part will not be caught and will be easily removed.

In addition, a suction device with a circumferential rising edge on the periphery of the case surface on the suction surface side is a card, tape, etc. that is magnetically recorded on the suction surface side of the suction device that is not engaged with the suction device. Even if the card, tape, etc. come into contact with each other, the protruding edge forms a bridge, and the magnetic recording will not be destroyed by the lines of magnetic force from the attracting surface.

[Brief explanation of drawings]

FIG. 1 is a sectional view of an embodiment of the engaging tool according to the present invention, y
Figures i and 2 are cross-sectional views of other embodiments, Figure 3 is a plan view of the suction tool, Figures 4 to 6 are plan views showing the relationship between the case opening and the insertion gap of the permanent magnet, and Figure 7 The figure is a perspective view of the case.
8 to 1O are cross-sectional views showing various embodiments of the suction device through the small diameter portion and large diameter portion, FIGS. 11 and 12 are sectional views of various embodiments of the suction device, and FIG. 19 are cross-sectional views of engagement tools showing examples of various types of fixtures, and FIG. 20 is a cross-sectional view of a conventional example of the engagement tool. A...Adsorption tool, B...Adsorbed tool, a, b...Magnetic pole surface, 1...Permanent magnet, 2.3...Ferromagnetic plate, 2a,
3a... Ferromagnetic protrusion, 4... Case, 5... Insertion gap.

Claims (5)

[Claims] 1. An adsorption tool having at least a permanent magnet 1 and a ferromagnetic plate 2 attached to one magnetic pole surface of the permanent magnet 1; at least a ferromagnetic plate 3 and a ferromagnetic plate protruding from the ferromagnetic plate an adsorbed tool having a protrusion 3a, the adsorption tool is provided with an insertion gap for the ferromagnetic protrusion 3a of the adsorbed tool between the magnetic pole faces of the permanent magnet 1, and the adsorbed tool The ferromagnetic plate 3 is attracted to the attraction surface formed by the other magnetic pole surface of the permanent magnet 1, and the ferromagnetic protrusion 3a is protruded from the ferromagnetic plate 2 or the ferromagnetic plate 2 through the insertion gap. ferromagnetic protrusion 2a, the suction tool is covered with a case having an opening on the opening side of the insertion gap, and the opening of the case has a small diameter part and a large diameter part. The ferromagnetic protrusion of the to-be-adsorbed tool has a deformed hole shape, and has a gap between at least the inner circumferential surface of the small-diameter side of the opening and the inner circumferential surface of the insertion gap, and the ferromagnetic protrusion of the attracted tool has a free end. An engagement tool characterized by having an overhanging flange on at least a part of the side. 2. 2. The engaging tool according to claim 1, wherein a circumferential rising edge is provided on the circumferential edge of the case surface on the suction surface side of the suction tool. 3. 2. The engagement tool according to claim 1, wherein the permanent magnet is an annular plate-shaped permanent magnet having a through hole extending between both magnetic pole surfaces. 4. 2. The engagement tool according to claim 1, wherein the permanent magnet is composed of a plurality of permanent magnet pieces arranged in an annular plate shape. 5. 2. The engagement device according to claim 1, wherein a bent edge is provided at the periphery of the case opening, and the bent edge on the large diameter side is longer than the bent edge on the small diameter side. .