JPH03230505A - Engaging tool - Google Patents

Abstract

PURPOSE:To facilitate engaging operation by constituting the hole of a perma nent magnet in a funnel type having a tapered hole part which narrows from the side of a magnetic pole surface without a ferromagnetic plate toward the other magnetic pole surface. CONSTITUTION:The hole 1a of a permanent magnet 1 is constituted in a funnel type having a tapered hole part 1a' which narrows from the side of a magnetic pole surface (b) without a ferromagnetic plate 2 toward the other magnetic pole surface (a). When a ferromagnetic protrusion 2a of the ferromagnetic plate 2 is made to attract a ferromagnetic protrusion 3a protruding from a ferromagnetic plate 3a, the ferromagnetic protrusion 3a is guided to the central part by the tapered hole part (a) of the funnel type hole 1a and attracted, even when deviation exists between the center line of the ferromagnetic protrusion 3a and that of the hole 1a of the permanent magnet 1. Thereby engaging opera tion of the ferromagnetic protrusion 3a is remarkably facilitated.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention consists of a female tool and a male tool using permanent magnets, and the male tool has a protrusion that is inserted into and attracted to the hole of the permanent magnet of the female tool. It is an engaging tool in which the permanent magnet of the female tool is exposed, and the hole of the permanent magnet has a tapered hole that narrows toward the inner depth, so that the protrusion of the male tool can be easily inserted, and it is easy to manufacture. Regarding the engagement tool.

[Prior art] A ferromagnetic plate 52 is attached to one pole surface of a permanent magnet 51 that has a hole 51a extending from one pole surface to the other pole surface, and a ferromagnetic plate 52 is attached to the other pole surface. The magnetic plate 53 is detachably attracted to the ferromagnetic plate 52.53.
a ferromagnetic protrusion 52a protruding from either or both of the
or 53a to the other ferromagnetic plate 52 through the hole 51a.
or the ferromagnetic plate 53, or the other ferromagnetic protrusion 52a, or
Conventionally, the permanent magnet 5 is attached to the engaging tool that is designed to be attracted to the 53a.
1 and a ferromagnetic plate 52 are integrated by adhesive molding, welding, etc., or a plate-shaped case 54 is fitted into a non-magnetic case 54 having a hole in the top wall that communicates with the hole 51a of the permanent magnet 51. was used.

[Problems to be Solved by the Invention] However, in the above-mentioned engagement tool, the hole 51a of the permanent magnet 51 has the same diameter across both magnetic pole faces, and the 1-strong 6R protrusion 53a is fitted into the hole 51a. If the strong 6N plate 52 or the ferromagnetic protrusion 53a are not aligned with each other, it cannot be fitted, and the engagement operation is troublesome.

In addition, since the strong 6N protrusion 53a hits the opening of the permanent 6FF stone 51, the periphery of the opening of the permanent 6I main stone may be damaged.
There were some problems, such as the possibility of damage from the periphery.

The present invention addresses the above-mentioned problems and points, and provides a locking mechanism which is free from the risk of damage to the permanent 6R stone, is easy to manufacture, has a good appearance, and facilitates the operation of inserting the ferromagnetic protrusion during the locking process. The purpose is to provide equipment.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides one 6a of a permanent magnet j having an engaging hole 1a for directing an engaging tool from one magnetic pole surface to the other magnetic pole surface. A ferromagnetic plate 2 is attached to one pole face, and a ferromagnetic plate 3 is attached to the other pole face in a removable manner.
6n protrusions 2a and 3a are attracted to each other via the target hole 1a, or the ferromagnetic protrusion 3a protruding only from the ferromagnetic plate 3 is attached to the ferromagnetic plate 2. The hole 1a of the permanent magnet 1 is configured to be funnel-shaped with a tapered hole portion la° narrowing from the side of the magnetic pole face without the ferromagnetic plate 2 toward the other magnetic pole face a. It is something.

[Function] In the above-mentioned engagement tool, the hole 1a of the permanent magnet 1 is funnel-shaped with a tapered hole portion 1a' that narrows from the side of the magnetic pole face without the ferromagnetic plate 2 toward the other magnetic pole face a. Therefore, when the ferromagnetic protrusion 3a protruding from the ferromagnetic plate 3 is attracted to the ferromagnetic protrusion 2a of the ferromagnetic plate 2 or the ferromagnetic plate 2, the ferromagnetic protrusion 3a and the hole 1a of the permanent ff2 stone l Even if there is a deviation in the center line, the strong 6n protrusion 3a is guided to the center by the tapered hole 1a' of the funnel-shaped hole 1a and adsorbed.
It is extremely easy to insert the strong 6N protrusion 3a.

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

2 is a permanent magnet using a plastic 6R stone made of synthetic resin containing hard magnetic powder, and the permanent magnet 1 may also be a ferrite magnet, a seat magnet, a rubber magnet, or the like.

This permanent magnet 1 has a ring-shaped hole 1a extending from one magnetic pole surface to the other magnetic pole surface. Also, hole 1
A has a funnel shape with a tapered part 1a' that narrows from one magnetic pole face to the other magnetic pole face a, and the shape may be circular, oval, rectangular, etc. .

Note that the hole 1a may be composed of a plurality of permanent magnets.

2 is a disk-shaped ferromagnetic plate attached to the magnetic pole surface a of the permanent magnet l, which has the same diameter as the magnetic pole surface a, and has a ferromagnetic protrusion 2 in the center.
ferromagnetic protrusion 2a may not be provided.

Further, this ferromagnetic plate 2 is integrated with the permanent magnet 1 during molding of the permanent magnet 1 to form a female component A.

Reference numeral 4 denotes a double-sided adhesive sheet attached to the surface of the ferromagnetic plate 2 opposite to the permanent magnet 1, and this adhesive sheet 4 allows the female tool A to adhere to a predetermined surface.

3 is a disc-shaped ferromagnetic plate with approximately the same diameter as the magnetic pole face of the permanent magnet l in the female tool A, which is detachably attracted to the magnetic pole face of the permanent magnet l;
A ferromagnetic protrusion 3a having a coaxial small-diameter push part 3a' inserts the small-diameter push part 3a' into a hole approximately in the center of this ferromagnetic plate 3.
Furthermore, a pair of legs 5 are formed by bending the small-diameter push portion 3a' into a U shape.
．． The male tool B is inserted into the hole in the center of the leg plate 5 having the ferromagnetic plate 5 and swaged, fixing the ferromagnetic plate 3 and the leg plate 5 together, and erecting the ferromagnetic protrusion 3a on the ferromagnetic plate 3. has been done.

This male tool B is attached by inserting the legs 5a into a predetermined surface such as a bag and bending them. The ferromagnetic plate 3 is attracted to the provided ferromagnetic protrusion 2a, and the female tool A
It attracts and engages with the facing side of the magnetic pole.

FIG. 2 shows a ferromagnetic protrusion 2a provided with a coaxial small-diameter push part 2a', and this small-diameter push part 2a' is attached to a leg plate 5 having integral legs 5a, 5a similar to the male tool B of the above embodiment. This is an embodiment in which a strong 6N protrusion 2a is erected on a ferromagnetized plate 2, which is inserted into a central hole and caulked, and a leg plate 5 is fixed.

In addition, a circumferential protruding edge 1b is provided on the outer periphery of the 6n pole face to which the strong 6a magnetic plate 3 of the permanent magnet 1 is attracted.
When the sexual plate 3 is attracted to the magnetic pole face, it is attracted to the inside of the protrusion 1b, and the male tool B and the female tool A are attracted with no misalignment, so that the ferromagnetic protrusion 3a does not have to enter the hole. At the same time, when the male tool B is not engaged, even if a magnetic card, 6R magnetic tape, etc. contacts the side facing the magnetic pole, the protrusion 11) acts as a bridge, and the 6fl pole surface 1], so there is no destruction of magnetic recording.

In Fig. 3, the hole 1a of the permanent grinding stone 1 has a bottom, and the hole provided in the bottom 1c and the hole provided in the center of the hard 6R hardening plate 2 are coaxially formed on the hard 6R hardness protrusion 2a. A leg plate 5 through which the small-diameter push portion 2a' is inserted and further includes leg pieces 5a, 5a of one month.
This is an example in which it is inserted into the hole and crimped.

Fig. 4 shows a permanent 6R stone 1 with a ferromagnetic plate 2 attached to the magnetic pole surface a by adhesive, and the strong 6R stone 2 does not have a ferromagnetic protrusion 2a, and the ferromagnetism of the male tool B that is attracted to it The protrusion 3a has a length that allows it to be directly attracted to the ferromagnetic plate 2, and this female tool A has a shield plate 6 made of a ferromagnetic plate etc. attached to the attracting side magnetic pole face of the other ferromagnetic plate 3 by adhesive. It is designed to prevent magnetic leakage from the 6n pole face when it is not engaged with male tool B, and to prevent accidents such as destruction of magnetic recording when it comes close to magnetic recording objects such as magnetic edges. This is what I did.

In addition to the leg plate 5, as an attachment for the engagement tool, there is an attachment tube 7 which is formed by expanding one end of the tube into a funnel shape and wrapping the expanded periphery around the periphery of a disk. The ferromagnetic protrusion 2 of the ferromagnetic plate 2 is crimped by inserting the small diameter push part 2a' coaxially provided on the ferromagnetic protrusion 2a into the hole provided in the center of the disc part.
There is a piece fixed to the surface opposite to a, and the female fitting A is caulked by inserting this attachment v7 into a hole provided in, for example, a bag and crushing the protruding end.

In addition to the above-mentioned examples, other attachments for the male tool B or female tool A include those in which the small diameter push part of the ferromagnetic protrusion is bottle-shaped, a wood screw shape, or a pole 1-shape. It is attached to a bag or the like by caulking, piercing, screwing, adhesion, adhesion, welding, etc., or it is attached using a double-sided adhesive sheet, adhesive, etc. without using a mounting tool.

[::) J effect] The engaging tool according to the present invention is constructed as described above, and in particular, the hole 1a of the permanent 6R stone 1 is directed from the side of the 61 side without the ferromagnetic plate 2 to the other magnetic pole face a. Since it has a funnel shape with a tapered hole 1a'' that narrows, even if the center line of the ferromagnetic protrusion 3a provided on the strong 6fi plate 3 is misaligned with the hole 1a of the permanent magnet, the tapered hole 1a' hole 1a by the inclined surface of
Since it is guided and attracted to the center of the permanent magnet 1, it is easy to fit it in.
(There is no damage to the periphery of the illumination 1. Furthermore, since the hole 1a is funnel-shaped, the hole 1a appears shallow, has a good appearance, and is easy to manufacture.

[Brief explanation of drawings]

Fig. 1 is a sectional view of one embodiment of the engaging tool according to the present invention, Fig. 2 is a sectional view of another embodiment of the inclination, and Figs. 3 to 5 are sectional views of various embodiments of the female fitting. , FIG. 6 is a sectional view of a conventional example. A... Female tool, B... Male tool, 1... Permanent magnet, 1a
...hole, 2.3...ferromagnetic plate, 2a, 3a...ferromagnetic protrusion, a, b...magnetic pole surface.

Claims (1)

[Claims] 1. A ferromagnetic plate 2 is attached to one magnetic pole surface of a permanent magnet 1 having an engaging hole 1a extending from one magnetic pole surface to the other magnetic pole surface, and a ferromagnetic plate 3 is detachable from the other magnetic pole surface. At the same time, the ferromagnetic protrusion 2a and the ferromagnetic protrusion 3a protruding from the ferromagnetic plate 2 and the ferromagnetic plate 3 are attached to each other through the hole 1a. This is an engagement tool in which a ferromagnetic protrusion 3a protruding only from the plate 3 is attracted to the ferromagnetic plate 2, and the hole 1a of the permanent magnet 1 is opened from the side of the magnetic pole face b where the ferromagnetic plate 2 is not attached to the other side. An engagement tool characterized in that it is shaped like a funnel and has a tapered hole that narrows toward the magnetic pole surface a.