JPH03270108A - Engaging implement - Google Patents

Abstract

PURPOSE:To prevent unintentional separation by providing an air gap between the inner periphery of an opening of a case of an attracting tool formed in a deformed hole shape having small and large diameter parts and the inner periphery of a gap to be inserted with a ferromagnetic protrusion of a tool to be attracted, providing an overhang collar partly at the protrusion of free end side, and providing a gap between a permanent magnet of the attracting tool and a ferromagnetic plate or a ferromagnetic protrusion attracted to one pole of the magnet. CONSTITUTION:If a tool B to be attracted and an attracting tool A are so mounted that the ferromagnetic protrusion 3a of the tool B is engaged with the small-diameter part 4a' of a case opening 4a of the tool A when mounting members are attracted at the separating side, even if a separating force is acted, the overhang collar 3b of the protrusion 3a is introduced into an air gap 5' between the inner periphery of the opening 4a of the tool A and the inner periphery of an inserting gap 5 and not removed. Since the protrusion 3a of the tool B is not brought into contact with a ferromagnetic plate 2 or a ferromagnetic protrusion 2a at the time of engaging, a ferromagnetic plate 3 of the tool B is brought into close contact with the attracting surface of the tool A, thereby providing a large attracting effect.

Description

[Detailed Description of the Invention] [A Tojo Field of Application] Is the present invention a suction tool? &@An engaging tool that uses a permanent magnet and is designed to prevent inadvertent separation by preventing disengagement unless the attracting tool or adsorbing tool is moved to one side. Regarding fittings.

[Prior Art] A conventional engagement tool using a permanent magnet 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 magnetic pole surface of the ferromagnetic plate 52, and a ferromagnetic protrusion 52a or 53a protruding from either or both 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. A device in which a permanent magnet 51, a ferromagnetic plate 52, and a ferromagnetic protrusion 52a are integrated into a suction device A that is attached to the suction tool A has been used.

[Problems to be Solved by the Invention] The engagement 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. A lever-like action with 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 edge of the lid may There was an inconvenience in that if the lid came into contact with an object and was 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.

Furthermore, when the length of the ferromagnetic protrusion 53a of the suction tool B is attracted to the ferromagnetic protrusion 52a or the ferromagnetic plate 52 of the suction tool A due to dimensional errors in manufacturing, etc., the ferromagnetic plate 53 does not attract the suction tool A. In some cases, the ferromagnetic plate 53 does not adhere to the surface, and a gap is created between the ferromagnetic plate 53 and the attracting surface, and in this case, there is an inconvenience that the attracting force is drastically reduced.

An object of the present invention is to provide an engagement tool that prevents such a situation.

[Means for Solving the Problems] The present invention is an engagement tool provided to achieve the above-mentioned object, and includes an engagement tool attached to at least a permanent magnet 1 and one magnetic pole surface a of the permanent magnet 1. an adsorption tool A having a ferromagnetic plate 2;
It consists of an attractee B having at least a ferromagnetic plate 3 and a ferromagnetic protrusion 3a protruding from the ferromagnetic plate 3, and the ferromagnetic protrusion 3a of the attractee B is inserted into the attractor A. A gap 5 is provided between the magnetic pole faces a and b of the permanent magnet 1, and the ferromagnetic plate 3 of the attracted tool B is connected to the permanent magnet 1.
At the same time, the strong 611 protrusions 3a are attached to the ferromagnetic plate 2 or the ferromagnetic protrusions 2a protruding from the ferromagnetic plate 2 through the insertion gap 5.
This is an engaging tool that is designed to be sucked into.

The suction tool A has an opening 4 on the opening side of the insertion gap 5.
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, and at least the small diameter part 4a' side of the opening 4a A gap 5 is provided between the inner circumferential surface and the inner circumferential surface of the insertion gap 5, and the ferromagnetic protrusion 3a of the attracted tool B has an overhanging flange portion 3b on at least a part of the free end side. When the attracted tool and the attracting tool are engaged, there is a gap It! between the ferromagnetic protrusion 3a and the ferromagnetic plate 2 or the ferromagnetic protrusion 2a! This is a configuration in which S is provided.

Further, in some cases, a circumferential rising edge 4d is provided on the periphery of the case surface on the suction surface side of the suction tool A, and the permanent magnet 1 has a through hole extending between both magnetic pole surfaces a and b. There are cases where the permanent magnet 1 is an annular plate-shaped permanent magnet 1, and there are cases where the permanent magnet 1 is composed 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 48. The bent edge 4b'' on the large diameter portion 41 side is longer than the bent edge 41 on the small diameter 41 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 a of the adsorbed tool B is brought to the side of the small diameter portion 41 of the case opening 4a of the adsorption tool A. If they are attached so that they fit together, even if a force is applied to separate the suction device A and the suction target B, the overhanging flange portion 3b of the ferromagnetic protrusion 3a will keep the small diameter portion 41 of the opening 4a of the case 4 of the suction device A. Since it enters the gap 5' between the inner circumferential surface of the side and the inner circumferential surface of the insertion gap 5, the attachment does not come off.

Also, when engaged by attraction, the ferromagnetic protrusions 3a and 6n of the attracted tool B
Since the magnetic plate 2 or the ferromagnetic protrusion 2a does not come into contact with each other, the ferromagnetic plate 3 of the attracting tool B is in close contact with the attracting surface of the attracting tool A, and the magnetic circuit configured between the attracting tool A and the attracting tool 8 is Ferromagnetic plate 2 - permanent magnet l - ferromagnetic plate 3 - ferromagnetic protrusion 3 shown in FIG.
a-ferromagnetic protrusion 2a-ferromagnetic plate 2, or as shown in FIG. Become. That is, the ferromagnetic protrusion 3a and the ferromagnetic protrusion 2a or 15i! Since a magnetic circuit is formed in which the BN force lines are concentrated across the gap S between the 411 and the 411 magnetic plates 2, the adsorption effect is great.

In addition, the suction device A in which a circumferential rising protrusion 11i4d is provided on the periphery of the case surface on the suction surface side is used when a magnetically recorded card, tape, etc. is not engaged by the suction device B. Even if the cart, tape, etc. come into contact with the suction surface of tool A, the protrusions i4d act as bridges, and the magnetic recording will not be destroyed by the lines of magnetic force.

Furthermore, since a bent edge 4b" is provided on the periphery of the case opening 4a, which is longer on the large diameter section 4a' side than on the small diameter section 41 side, when removing the retainer, the large diameter section 4a" side is folded. By applying the ferromagnetic protrusion 3a of the suction target B using the bent edge 4b'' as a guide and pulling it apart, the overhanging flange 3b can be easily removed without being caught.

[Embodiments] Examples of the engagement 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 the thank-you note is inserted from one magnetic pole face a to the other 1i11 pole face 11jii 5
is provided.

2 is a disk-shaped ferromagnetic plate with the same diameter as the magnetic pole surface a, which is adsorbed on one magnetic pole surface a of the permanent magnet l, and 2a is set upright 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-6il case with an opening 4a having an inward bend 1i4b in the top wall, and the opening 4a of this case 4 is shown in FIGS. As shown, it has a deformed hole shape consisting of a large diameter part 41 of % circle or more connected at the diameter position of a semicircular small diameter part 4a, and communicates with the insertion gap 5 which is the through hole of the permanent magnet l, This case 4
A permanent magnet 1, a ferromagnetic protrusion 2a, and a ferromagnetic plate 2 are held inside with the permanent magnet 1 facing inward, and a plurality of locking claws 4C provided on the lower edge of the case 4 are attached to the ferromagnetic plate 2. The suction tool A is configured by bending it upward and locking it.

The through hole of the permanent 6n stone 1 is slightly larger than the opening 4a and has an oval shape close to the opening 4a, as shown in FIGS. 5 and 6, or a hole with a larger diameter than the opening 4a. In some cases, the permanent magnet 1 is an annular plate-shaped permanent magnet with a through hole extending between the two magnetic pole faces a and b, and in other cases, the permanent magnet 1 is a plurality of permanent magnet pieces as shown in FIG. “Is!” are arranged in parallel in a circular plate shape and inserted between them!
In some cases, it has a value of 5.

And the bent edge 4 on the small diameter portion 4a' side of the bent edge 4b
A gap of 5° is formed between the inner circumferential surface of the permanent magnet 1 and the inner circumferential surface of the insertion gap 5 in the permanent magnet 1.

Further, as shown in FIGS. 8 and 9, the bent edge 4b on the large diameter portion 4a side is longer than the bent edge 41 on the small diameter portion 41 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 A, and a ferromagnetic protrusion 3a is protruded from approximately the center of the ferromagnetic plate 3 to cover it. The suction device B is configured with an overhanging collar portion 3b as shown in FIGS. 12 and 13 on a part of the free end side of the ferromagnetic projection 38 or around the entire circumference.
is provided.

As shown in FIG. 1, the suction device A and the suction target B are provided with strong 6N protrusions 2a and 3a, respectively, and the ferromagnetic plate 3 of the suction device B is attached to the magnetic pole surface of the permanent linstone l. In the case where the ferromagnetic protrusions 2a and 3a attract each other while adhering to the adsorption surface created by the ferromagnetic plate 2, as shown in FIG. 3a is provided so that the ferromagnetic plate 3 is attracted to the attraction surface and the ferromagnetic protrusion 3a is directly attracted to the ferromagnetic plate 2. In either case, the ferromagnetic protrusion 3a and the ferromagnetic plate 2 or A slight distance lI*s is created between the ferromagnetic protrusion 2a and the ferromagnetic protrusion 2a.

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 folding edge 41 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 folding edge 4b" on the large diameter part 41 side. Since the overhanging flange 3b is not caught, the attachment is released by aligning on the large diameter portion 41 side.

FIG. 11 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 tool A, and this protrusion 4d allows the magnetic cart and magnetic The tape acts as a bridge so that it does not come into close contact with the adsorption surface, so that the harmful effects of magnetic lines of force do not affect magnetic recording.

Also, are you wearing rgL nursing gear? &@, As the dressing device 8, the small diameter frame portion 2a', 3a' provided coaxially with the ferromagnetic protrusion 2a or 3a is connected to a hole opened approximately at the center of the ferromagnetic plate 2.3. The leg plate 6 is inserted through a hole in the center of the leg plate 6 having a pair of U-shaped bends 6a as shown in FIG. 6, ferromagnetic protrusion 2a, 31 ferromagnetic plate 2゜3
and the case where the leg plate 6 is fixed together, and the case where the leg plate 6 is welded to a ferromagnetic plate and attached by inserting the leg plate 6 into the mounting plate surface of a bag etc. and bending it as shown in Fig. 15. Or, as shown in FIG. 16, a funnel-shaped caulking vibrator 7 with one end expanded is welded to the surface of the ferromagnetic plate 2.3, or as shown in FIG. Wrap it around the peripheral edge of the disc to form a body, and caulk this disc part to the strong magnetic plate using the small diameter frame of the ferromagnetic protrusion, and then caulk it into the hole of a mounting member such as a bag to which the engaging tool is attached. Also, as shown in Figure 18, there is a strong 6n protrusion 2.
The free end side of the narrow diameter frame portions 21, 3a' of a and 3a is shaped like a bolt or a wood screw so as to be screwed onto the mounting surface, and as shown in FIG. I was
The free end side of the warp and warp part 21° 31 is shaped like a bottle and inserted into the mounting surface, and the tips of the narrow diameter frame parts 2a' and 3a' are inserted into the intersection of the cuts of the steel piece 8 with cross-shaped cuts. A device that is designed to be installed with a

In addition, when attaching an engaging tool using a chain C such as a necklace to a chain, as shown in FIG. Bend a part along the side of suction tool A, and then
A locking portion of the chino 9 is provided at the portion 3C bent in the same plane as the portion 3C.

The above-mentioned engaging tool can be installed by attaching the suction tool A with the small diameter part 41 side of the opening 4a of the case 4 facing the seam of clothing, the direction of separation of bags, etc. and lids, boxes and M, etc. The space Is between the overhanging flange 3b of the ferromagnetic protrusion 3a of the tool B and the inner circumferential surface of the opening 4a on the small diameter portion 41 side and the inner circumferential surface of the insertion interval lI*5 of the permanent magnet 1! 5', and the suction target B
Needless to say, the engagement does not come off when the force is applied to pull apart in a direction parallel to the suction surface of the suction tool A, and even when the force is applied to pull it apart in a direction perpendicular to the suction surface of the suction tool A.

[Effects] The engaging tool A according to the present invention is configured as described above, and in particular, the suction tool is covered with a case 4 having an opening 4a on the opening side of the insertion gap 5. Part 4
a has a deformed hole shape consisting of a small diameter portion 41 and a large diameter portion 41, and is at least inserted between the inner circumferential surface of the opening 4a on the small diameter portion 41 side and the insertion distance I! ! 5, and the ferromagnetic protrusion 3a of the attracted tool B has an overhanging flange 3b on at least a part of the free end side, so that it can be used as a mounting member for the engaging tool. If the ferromagnetic protrusion 3a of the suction tool B is fitted into the small diameter part 4a' side of the case opening of the suction tool A when the two are pulled toward the side where they are separated by 3 degrees, the mounting members can be mutually separated. Even if a force is applied to separate the suction tool A and the suction target B, the overhanging flange 3b fits into the gap 5' on the small diameter portion 41 side of the opening 4a, so that the engagement does not come off.

Further, when the attracted tool B and the attracting tool A are engaged, a gap 11i is formed between the ferromagnetic projection 3a and the ferromagnetic plate 2 or the ferromagnetic projection 2a.
is, the dimensions of the ferromagnetic protrusion 3a do not need to be precise, and the lines of magnetic force are 11! Since the magnetic circuit is constructed by crossing S, the adsorption effect is great.

Furthermore, since a bent edge 41 is provided on the periphery of the case opening 4a, which is longer on the large diameter portion 41 side than on the small diameter portion 41 side, the bent edge 41 on the large diameter portion 41 side is 4b" as a guide, by placing the ferromagnetic protrusion 3a of the suction target B on it and stepping on it three times, the overhanging flange 3b can be easily removed without being caught.

In addition, the suction device A in which a circumferential rising edge 4d is provided on the periphery of the case surface on the suction surface side is magnetically recorded on the suction surface side of the suction device A that is not engaged with the suction target B. Even if a card, tape, etc. comes into contact with it, will this cart, tape, etc. form a bridge due to the ridge, and the magnetic recording will be destroyed by the lines of magnetic force from the adsorption surface? 7.

[Brief explanation of drawings]

1 and 2 are cross-sectional views of one embodiment of the engaging tool according to the present invention, and FIGS. 3 and 4 are sectional views of the 6a air holder configured when the embodiment of FIGS. 1 and 2 is engaged. An explanatory diagram of the circuit, Figs. 5 to 7 are plan views showing the relationship between the case opening and the insertion gap of the permanent magnet, Fig. 8 is a side view of the case, and Figs. 9 to 11 are the adsorption tools. Figures 12 and 13 are cross-sectional views of various embodiments of the suction target, and Figures 14 to 20 are cross-sectional views of various types of attachments. FIG. 21 is a cross-sectional view of a conventional example of an engaging tool. A...Adsorption tool, B...Adsorbed tool, a, b...Magnetic pole surface, S...Gap, 1...Permanent 611 stones, 2.3...
- Ferromagnetic plates, 2a, 3a...Ferromagnetic protrusion 54...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 adsorbing tool is provided with an insertion gap for the ferromagnetic protrusion 3a of the adsorbed tool extending between the magnetic pole faces of the permanent magnet 1; The ferromagnetic plate 3 of the tool 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. a deformed hole shape consisting of a ferromagnetic protrusion of the to-be-adsorbed tool; 3a has an overhanging flange on at least a part of the free end side, and when the attracted tool and the attracting tool are engaged, the ferromagnetic protrusion 3a and the ferromagnetic plate 2 or the ferromagnetic protrusion 2a An engagement tool characterized in that a gap s is provided between the ends. 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. .