JPS5961667A - Engagement tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an engagement using the magnetic force of a permanent magnet, and particularly to the disclosure of an 11-attached structure for both engagement.

Therefore, in the past, this type of engagement device generally utilized a washer having leg pieces, but with such a washer structure, the number of parts required for installation was increased, and the installation was difficult. This requires a lot of manufacturing time, and the product cost is relatively high.

In addition, it is difficult to attach decorations such as decorative buttons to the mounting surface of washers whose main body is bent leg pieces, and more labor and materials are required to attach decorations. This is what I did.

Next, in the conventional leg structure, a relatively large number of end faces are required to be bent and locked, which does not necessarily give a good appearance.In particular, installation requires additional leather, etc. to be added to the base plate. What are the drawbacks of not attaching it? It's something new.

The present invention has been devised especially in view of the inconveniences of the conventional engagement tools, and has a bottomed tube-like structure in which the crushing and expansion of the tip is determined by T, in contrast to the conventional leg structure. In addition to lowering the product cost by reducing the number of parts, Φ, and installation labor, the installation is relatively simple on the end face, significantly improving the appearance, and can be decorated as needed, especially decorative buttons etc. This allows for one-touch installation.

The details of the present invention will be described below with reference to a typical embodiment shown in the drawings. A general stop using a permanent magnet (1), in particular, one end face of the permanent magnet (1) is connected to the other end face of the permanent magnet (1). A hole (1) a is provided toward the end face, and the hole (1) a is opened by opening or by assembling a plurality of magnets (1).
A ferromagnetic plate (2) is fixed to one pole end face of the magnetic plate (1) with a case (3) made of a non-magnetic material, or is directly bonded to form an integral piece, and then the ferromagnetic plate ( 2
) in the hole (1) of the magnet (1) are completely exposed as in FIG. 10, or as in FIG.
) A ferromagnetic rod (4) with a length reaching the middle of a is attached to the plate (2) in one piece by various methods such as caulking, soldering, welding, press-fitting, or attachment. As shown in the figure, the rod (4) reaches the second grade of the hole (1) a.
That is, when another ferromagnetic plate (5) is brought into contact with the magnetic pole surface of the magnet (1) including the case (3), the end of the rod (4) can come into contact with and be magnetically attached to the surface of the plate (5). erected on the plate (2), with special consideration taken to prevent the rod (4) from coming into contact with the inner circumferential wall surface of the hole (1) a of the magnet (1) in either case. It is.

The permanent magnet (1) is available in various shapes and materials, and in terms of structure, a magnetic shielding plate (6) as shown in Figures 11 and 12 is separately provided. In the case of attaching the washer (7) having the leg pieces (7)a to (7)a, it is necessary to attach the washer (7) with the leg pieces (7)a to (7)a by adhering it to the plate (2), lava, waxing or caulking, etc. together with the case (3). ) It is planned that the end will be held together with the previous plate (2) to be attached to a walnut.

The present invention is based on such a permanent magnet (1), and has a unique mounting structure for the base (8) of the plate (5) which is magnetically and removably abutted on the free end face of the magnet (1). Regarding the disclosure, first, the approximately central part of the receiving plate (9) is squeezed out to the side to form a bottomed mounting pipe part (9)a, and one of the pipes of this mounting plate (9) is Bend the edge of the lithographic plate (10) attached to the non-protruding end surface of the part (9) a and use it as an edge (10) a to roll up the edge of the mounting plate (9) and attach the mounting plate (9) and the lithographic plate (io). ).

A ferromagnetic plate (5) is used for a flat plate (1O) with a visible configuration.
These plates (10) and (5) are attached with
At the same time, various methods are envisaged for fastening, such as welding, caulking, welding or bolting, screwing, press-fitting the bottle, and other various methods.

Therefore, this plate (5) corresponds to the structure such as the permanent magnet (1) that comes into contact with it, that is, the permanent magnet (1)
) in which a long ferromagnetic rod (11) that directly contacts the plate (2) is protruded from the end surface that contacts the magnet (1);
In the case where a rod (11) with a length extending halfway up the hole (1) a of the magnet (1) is provided, and furthermore, the rod (4) in the permanent magnet (1) hole (1) as shown in Figure 9.
) If the dimension is such that it reaches the upper edge of the plate (5), there is no need to provide another rod (11) to the plate (5), and the abutting end surface is simply a smooth surface. The periphery of (5) stands up in the direction of the abutting end surface with the magnet (1), and serves as a periphery flange (5)a.

It should be noted that various methods are planned for attaching the plate (11) to the ferromagnetic plate (5). In addition, caulking, screwing, press-fitting, and other attachments are planned according to the structure.

Next, in the specific installation via the base plate (8), the large plate (
Crush the protruding end of the large plate (8) on the mounting tube part (9)a of the plate (9) inserted into the plate (8), and separate the large plate (8) and the plate (5).
) are fixed together, and the end of the tube part (9) is attached to the crushing part 1 via the washer (12) as shown in FIG. In other words, a case is planned in which a receiver (13) having a funnel-shaped female pipe portion (13) a protrudingly provided thereon is used.

Thus, this receiver (13) has a female pipe portion (13) whose diameter gradually decreases.
3) a, and first insert the tube part (13) a into the weighting hole in the large plate (8) so that the receiver (13)
The tip of the tube portion (9) a is attached by attaching the tube portion (9) a of the plate (9) and press-fitting the tube portion (9) a into the tube portion (13) a from the other end surface of the large plate (8). Sequentially expanded to form a tube (1
3) It is crimped to the inner circumferential wall of a.

In addition, as illustrated in FIG. 6, if the decorative button (14) is installed in advance on the receiver (13), the decorative button (14) must be removed again. In other words, the decorative button (14) can be reliably attached by attaching a general plate (5) without using any means for this purpose.

The present invention is a large version (8) due to its characteristic structure in the story.
The plate (5) can be installed extremely easily, that is, by simply press-fitting or press-fitting and crushing, and the number of parts for installation is reduced as much as possible, and the appearance after installation is extremely good. It is something.

In other words, the plate (10) is integrated with the plate (9) by rolling it in, and the plate (5) is attached to it using the rod (11), and the assembly of these parts significantly increases the cost. It is inexpensive. In addition, the large plate (8) can be reliably attached to the washer (12) or receiver (13) by an extremely simple operation such as press-fitting and crushing, and the inspection of the large plate (8) is a cost-effective process. At the same time, it was also aimed at lowering the price.

In particular, in such a simple press-fit fastening method, subsequent manipulation of the press-fit end, especially caulking, bending, etc., is not necessary, and the use of the decorative button (14) is completely possible. It is.

In addition, by changing the structure that was held at two or more fulcrums as in the conventional example to a single fulcrum of the pipe portions (9) a and (13) a, the plate (5) is - A certain swing width is provided, and this swing width makes it possible to maintain a more stable state of magnetic attachment with the magnet (1).

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a typical embodiment of the present invention;
Figures 4 through 4 are sectional views showing other embodiments, Figures 5 through 7 are sectional views showing various mounting states, and Figures 8 through 13 are sectional views showing various examples of mating partners. It is. In the figure, (1)...Permanent magnet, (2)...Ferromagnetic plate, (3)...Case, (4)...Ferromagnetic rod, (5)
...Ferromagnetic plate, (6)...Magnetic shield plate, (7)
...Mounting leg piece, (8)...Large plate, (9)...Mounting plate, (10)...Lithograph, (11)...Ferromagnetic rod, (
12)...Washer, (13)...Cash receipt, (14)...
・This shows a decorative button. Patent Applicant Co., Ltd. Tamo Representative Patent Attorney Minoru Kuwahara 5Fffi Figure 2 Figure 4 Figure 6 Figure 7 Figure 7 388 a No. 109

Claims (1)

[Claims] A ferromagnetic plate is attached to one of the magnetic pole tips of a permanent magnet in which an appropriate engagement hole is opened from one magnetic pole tip surface to the other magnetic pole tip surface, and the other magnetic pole Another ferromagnetic plate that is removably abutted on the end face,
The previous ferromagnetic plate is inserted through the hole in the permanent magnet.
In an engagement tool that allows the HM to come into contact with the HM in a removable manner,
A flat attachment device is attached to the end surface of the ferromagnetic plate which is removably abutted against the permanent magnet end surface of the engagement tool and is not in contact with the permanent magnet. 1. An engagement device characterized in that a mounting plate formed by raising the plate into a bottomed tubular shape is attached thereto, and the peripheral edge of the flat plate is bent and engaged with the peripheral edge of the mounting plate.