JPS604577B2 - Engagement tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is intended to provide an engaging tool using a permanent magnet that is smaller and more robust by using a painted film as an exterior material in place of a coin case.

Therefore, in the case of this type of engagement odor in the past, the permanent magnet used was generally covered with a case such as real thin silver, etc.
Magnets, especially ferrite magnets, etc., are designed to have structural strength to compensate for impact resistance, scratch resistance, abrasion resistance, etc., and to compensate for lack of appearance and beauty as surface characteristics.

However, in this method, the processing of the covered Shinsenhan,
In particular, it requires press punching, drawing, or plating, as well as mounting and caulking processing, which requires a lot of manufacturing and mounting and assembly time, and at the same time, it causes problems with the materials used and increases the cost of the product. It is something.

In addition, the weight of the engaging tool is inevitably heavy due to the material used for the case as the exterior material, and since a gap between the inner magnet and the exterior material is required for iron fitting. Inevitably, the height of the engaging tool is increased, which significantly impairs usability for high-end accessories.

Also, since there is a gap between the saddles of the permanent magnets used for these cases, if the previous crimping was not done reliably or if the casings loosen due to repeated use over time, The permanent magnet oscillates, which significantly reduces the attraction force of the engaging tool or causes rattling noise during use.

The present invention has been devised especially in view of the inconveniences of the engagement tools in the prior art, and it uses various laminated paints as a substitute for the surface coating members such as the conventional shinzen thin rice. A film is prepared to ensure that the inconveniences associated with the use of the Jojo Marin case are avoided.

That is, the engaging tool according to the present invention solves the above problem by providing one magnetic pole surface b of a permanent magnet 1 in which a hole la is opened from one magnetic pole surface a to the other magnetic pole surface b. A ferromagnetic plate 2 is provided on the other magnetic pole surface a, and a ferromagnetic plate 3 is brought into contact with the other magnetic pole surface a in a detachable manner, and a ferromagnetic plate 3 is protruded from both or either of the ferromagnetic plate 2 and the ferromagnetic plate 3. The above-mentioned ferromagnetic plate 2 or ferromagnetic plate 3 in which the ferromagnetic cage 4 and the ferromagnetic cage 5 are opposed to each other, or the ferromagnetic cage 4 and the ferromagnetic cage 5 are respectively opposed to each other.
In the engagement tool which is in contact with the hole lb of the permanent magnet 1 so as to be able to be adsorbed and removed, an exterior paint film having a wall thickness of one or more ridges is formed on all or part of the exposed surface of the permanent magnet 1. This is an improvement and provision of an engaging tool provided with la. The details of the present invention will be described below with reference to a typical embodiment shown in the drawings. Reference numeral 1 is a permanent magnet, and a hole la is opened from one magnetic pole surface a to the other magnetic pole surface b. material,
There are no particular restrictions on the properties, and it is intended that the material, shape, and properties should generally produce magnetic attraction.

At least one layer of paint is applied to the surface of the magnet 1 by coating, impregnating, spraying, electrostatic coating, lightning coating, or any other method. It is formed by laminating paint films la having the above thickness.

It is planned that this paint film la will cover the entire surface of the magnet 1, or it will be attached only to a specific part of the surface of the magnet 1. Depending on the purpose of use of the engagement tool and the mounting structure, etc., the attachment surface may be adjusted as appropriate. At least one or more arbitrary thick coatings la are selected and configured depending on the purpose of use of the engagement tool, the position of the coating la surface on the magnet 1, etc.

Next, various coatings are planned for the coating layer la mentioned above, and depending on the properties, shape, outer surface characteristics, etc. of the magnet 1, for example, oil-based coatings, alcoholic coatings, cellulose derivative coatings, synthetic resin coatings, synthetic coatings, etc. The use of resin emulsion paints, water-based matting paints, water-based paints, and special paints tailored to the purpose is planned, as well as the selective use of various pigments such as colored pigments, metal powder pigments, extender pigments, matte pigments, reinforcing pigments, etc. use of plasticizers,
By selectively using additives such as hardeners and pigments,
In other words, it is planned to produce a paint film la that has excellent impact resistance, abrasion resistance, abrasion resistance, etc., and is also excellent in water resistance, chemical resistance, and aesthetic appearance, etc., in accordance with the intended use of the engaging tool. be.

In this way, the magnet 1 with the paint film la formed on its surface does not require the installation of a bell case as in the conventional example, and the typical magnet 1 illustrated in FIGS. 2 to 10 How to use it as an engagement tool for handbags etc.
It also shows many other usage examples.

In a basic example of its structure, a ferromagnetic plate 2 is fixed to one of the magnetic pole faces, and a ferromagnetic plate 3 for engagement is detachably attached to the other magnetic pole face. Moreover, the ferromagnetic rod 4 protruding from the ferromagnetic plate 3 is in close contact with the ferromagnetic plate 2 surface within the hole lb in the magnet 1, while the other ferromagnetic plate 3 is in close contact with the upper surface of the magnet 1. It was made to absorb and absorb.

The ferromagnetic rod 4 in this case has a length that extends from the entrance edge of the hole lb of the magnet 1 to the surface of the ferromagnetic plate 2. In the embodiment shown, a ferromagnetic birch 5 is separately set up from the ferromagnetic plate 2, and this ferromagnetic birch 5 and the previous ferromagnetic birch 4 reach the ferromagnetic plate 2 from the closed edge of the hole lb of the magnet 1. It is the length dimension, and the fourth dimension is
As shown in the figure, another embodiment is shown in which the length of the ferromagnetic wire 5 is set to reach the upper edge of the closed hole lb. Next, the ferromagnetic plate 2 and the magnet 1 are bonded together by a general method or attached as shown in FIG. 6, and further fixed with the case 6 as shown in FIGS. In addition to iron-bonding the case 7 as shown in Fig. 9, other methods such as pin-bonding, screw-bonding, partial welding for plastic magnets, insert molding, and other suitable methods are planned. For this attached ferromagnetic plate 2 and other ferromagnetic plates 3,
Separately, a mounting washer 8 having mounting leg pieces 8a to 8a for handbag fabric etc. is attached, and this washer 8 is attached to the ferromagnetic plate 2,
and 3 are integrally attached by any method such as welding, soldering, caulking, screwing, screwing, or any other method.

Also, when attaching the ferromagnetic paddles 4 and 5 to the ferromagnetic plates 2 and 3, welding, waxing, caulking, etc.
Naturally, screw attachment, screw attachment, and other installation methods are planned, and the second
FIG. 8 shows an example in which the ferromagnetic plates 2 and 3 are moved together by force.

In addition, in the case where the case 6 is present, the ferromagnetic plate 2 is naturally also used, and as shown in FIG. 8, the case 6 is
In addition, if the engaging edge flange lc is separately constructed on the bottom of the hole lb of the magnet 1, the magnet can be directly fixed with the ferromagnetic holder 4 as shown in FIG. 1, the ferromagnetic plate 2, and the washer 8 can be integrally fixed.

In contrast to the basic structural example shown in FIG. is the hole 1 on the upper end surface of magnet 1.
A tapered or rounded surface that gently descends toward M,
The ferromagnetic plate 3 that contacts and attracts this also has a similar tapered or rounded surface. The creation of this rounded surface or tapered surface brings about particularly good results in the formation of a film during coating, and makes it possible to form a good film and maintain a glossy film. Also, Figures 9 and 10
The figure shows an engaging tool as a means of attaching ornaments such as necklaces and bracelets, and in FIG. The other ferromagnetic plate 3 has a shape that is covered by the magnet 1, and this case 7 and the ferromagnetic plate 3
In addition, in FIG. 10, a ferromagnetic plate 2 having an engaging piece is fixed to the magnet 1 and comes into contact with it. , shows an embodiment in which the side part of the other ferromagnetic plate 3 to be attracted is bent downward by the thickness width of the magnet 1, and this bent lower part is further extended laterally to form an engaging piece. .

The present invention has a characteristic configuration as described above, in particular, various coatings are applied to the entire circumferential surface of the magnet 1 or a part of the circumferential surface that is not covered with the ferromagnetic plate 2, the cases 6 and 7, etc. By producing the paint film la using a method and using it as the exterior of the engagement tool, the above-mentioned characteristics can be expected to be achieved in a concrete manner.

That is, in the present invention, a paint film la sufficient to create surface strength is formed as an exterior of the engaging tool in place of the conventional Marin case, so that it can be used as an outer cover for a fragile magnet 1 such as a ferrite magnet. It buffers the impact, eliminates damage, and significantly improves surface abrasion and abrasion resistance.Furthermore, it improves the surface gloss and color tone, and reduces the surface roughness of magnet I. This eliminates any infiltration, stains, etc. that occur on the surface of the magnet 1 due to this surface roughness. In addition, the above-mentioned paint film l is used to create gaps to prevent magnetic short circuits, similar to the case of real coins in the past.
A is formed on the circumferential surface of the magnet 1, and at the same time a coating film la is formed on the circumferential surface of the magnet 1.
The magnet 1 and the magnet 1 are made inseparable, eliminating any problems such as gaps between clamps or loosening of the iron fittings that occurred in previous cases.

That is, by configuring the aforementioned magnetic short-circuit prevention gap on the circumferential surface of the magnet 1, even when an iron plate comes into contact with the circumferential surface of the magnet 1, the lines of magnetic force are concentrated in the ferromagnetic birches 4 and 5, which have low magnetic resistance. , the attraction force can be significantly increased, and the latter problem of iron fitting also solves the problems of displacement of the attraction surface, reduction of attraction force due to swinging of the magnet, and bulkiness of the engaging tool. has been definitely removed. The ferromagnetic birches 4 and 5 shall be erected or inserted in such a way that they do not come into contact with the inner circumferential wall surface of the hole lb of the magnet 1, and with the intention of creating a more reliable magnetic closed circuit, the ferromagnetic birches 4 and 5 are The paint film itself is also designed to form a paint film la.

Furthermore, the free end surfaces of the ferromagnetic birch 4 and 5 are made to have a small diameter at the top, and the distribution density of the lines of magnetic force on the supporting end surfaces is optimized to create a distribution state that produces the best adsorption. Based on the characteristic structure described above, the thickness of the paint film la is determined at any time according to the purpose of use, and the surface is roughened to improve engagement. The magnet used here has sufficient shock-absorbing and shock-resistant properties and abrasion resistance in place of conventional coin cases.

[Brief explanation of drawings]

FIG. 1 is a partially exploded perspective view of a magnet that is a typical embodiment of the present invention, and FIGS. 2 to 10 are cross-sectional views of a grand fitting using the magnet. In the figure, 1... magnet, 2-3... ferromagnetic plate, 4-5... ferromagnetic camphor, 6-7... case, 8. ...Indicates the mounting washer. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10

Claims (1)

[Claims] 1 Hole 1a from one magnetic pole surface a to the other magnetic pole surface b
A ferromagnetic plate 2 is placed on one magnetic pole face b of a permanent magnet 1 with
and a ferromagnetic rod 4 protruding from either or both of the ferromagnetic plate 2 and the ferromagnetic plate 3, and the ferromagnetic plate 3 is brought into contact with the other magnetic pole surface a in a detachable manner.
and ferromagnetic rods 5 to each other, or ferromagnetic rods 4 and ferromagnetic rods 5
is in contact with the opposing ferromagnetic plate 2 or ferromagnetic plate 3, respectively, in the hole 1b of the permanent magnet 1 so that it can be adsorbed and removed, the entire exposed surface of the permanent magnet 1 Or an engagement device characterized in that a part thereof is provided with an exterior paint film 1a having a wall thickness of 1μ or more.