JPS5910212A - Engagement device - Google Patents

Abstract

PURPOSE:To easily confirm the position of engagement during use and eliminate fear of generating friction flaw at the surface of female unit by allowing a ferromagnetic part to be projected from a ferromagnetic plate which is removably attracted to the other pole surface of permanent magnet to be abutted or attracted onto the surface of ferromagnetic plate extruded to a side from the case. CONSTITUTION:A ferromagnetic plate 6 is removably attracted magnetically to the other pole surface of a magnet 1 through non-magnetic material and a plate 4 is directly abutted partly against a preceding plate 2. The one side edge of plate 4 is projected and raised in such a degree as reaching the plate 2. This part is considered as the edge collar for engagement 4B so that it removably slides on the circumferential side surface of case 3. A means for fixing a device for engagement utilizing a magnetic attracting force and having such structure to an opening or closing means of the object device or the other substance is formed to the plate 2 and the plate 4. As a means of such purpose, almost U- shaped engaging segment 5 is fitted with a rivet 6 toward external side of edge surfaces not opposed each other of the plate 2 and plate 4.

Description

[Detailed Description of the Invention] This invention accurately ensures the attraction effect of a permanent magnet with a magnetic pole circuit that is closed by turning a side edge engaging pusher, thereby making an engaging main body with good manufacturability at a low cost. The present invention relates to the disclosure of an extremely novel and effective engaging tool that can be used for various purposes.

One of the anticipated main objectives of the present invention is to make the connecting part connected to the edge of the opening a relatively wide pole end face, and to enable the ferromagnetic part having the relevant rod to be freely engaged and detached from this. This is because the close contact prevents the suction surface of the end surface of the engaging rod from coming loose, especially tilting, due to external pressure applied to the opening edge, thereby ensuring reliable suction. It is.

Another main objective of the present invention is that it enables the use of relatively small magnets, which can lead to effective reductions in material and assembly costs. It was placed in

Furthermore, another main objective anticipated in the present invention is to enable the structure of the engaging push part to be formed by drawing processing, etc. in the structure of the collar-engaging male tool, thereby simplifying and increasing the robustness of the male tool. This is intended to enable effective cost reduction as well as cost reduction.

Next, one of the other main objectives expected in the present invention is that the position of the engaging rod on the male tool can be reliably confirmed during use, so that the position of the engaging hole can be accurately and without waste. guide you to
In particular, the purpose is to enable smooth engagement and use without causing scratches or the like on the surface of the female tool.

Further, other objectives contemplated by the present invention will be made clear from the following description:
In order to obtain an appropriate and appropriate effect on the magnetic properties, the present invention has a structure in which a ferromagnetic portion (2) is attached to one magnetic pole surface of a permanent magnet (1), and the permanent magnet (1) is The permanent magnet (1) and the ferromagnetic part (2) are held together by a case (3) made of a non-magnetic material that is fitted over the surface of the magnet (1).
A part of the permanent magnet (1) is integrally held so that a part thereof protrudes laterally, and the ferromagnetic part (4) is detachably attracted to the other magnetic pole surface of the permanent magnet (1). The ferromagnetic part (4) B to be drawn out is placed on the surface of the ferromagnetic part (2) protruding laterally from the case (3) at a point so as to be brought into contact with and attracted to it. Considerable design changes were planned in line with the overall configuration.

The details of the present invention will be explained one by one with reference to a typical embodiment shown in the drawings. (1) is a permanent magnet made of a metal ferromagnetic material or a compound ferromagnetic material such as ferrite/pyrotite. The permanent magnet (1) is designed to have a short planar rectangular or rectangular shape or any other arbitrary shape determined according to the intended purpose of use, and the magnet (1) is made of iron. , nickel cobalt or alloys and compounds thereof, or alloys and compounds of manganese and chromium, etc., are placed on the ferromagnetic part (2) to be adsorbed thereon, and fixed by any method. This is what I did. In the figure, the magnet (1) is pressed in a manner that surrounds the remaining periphery of the plate (2) except for the magnetically attached surface, that is, pressed in the same shape as the circumferential shape of the magnet (1). A case (3) made of a non-magnetic material that is shaped using other methods and has a substantially bottomed cylinder shape is separately prepared.
) to fit the magnet (1), and an engaging piece (3) A protruding from the lower edge of the case (3).
(3) A is bent to the lower surface of the plate (2) so as to bypass the circumferential side of the plate (2) which was first attracted.

Case (3) is generally expected to be made of brass or synthetic resin material from the viewpoint of aesthetic appearance and protection from damage to magnet (1), but it is particularly specific to this case. In general, it was planned to use paramagnetic and diamagnetic materials.Of course, it was intended to maximize the force acting between the magnetic poles. In this case, the case (3) was made as thin as possible and was fitted so that it was in close contact with the magnet (1). A ferromagnetic part (4) is arranged in such a manner that a non-magnetic material is interposed in 1-, so that it can be magnetized and detached, and a part of the word record (4) can be directly applied to the previous plate (2). As shown in Figures 1 and 2, the - side edge of the plate (4) is expanded and raised until it reaches the plate (2), and this is attached to the attached edge flange (4)B. Toshi case (3
) can be freely adsorbed and removed so that they slide into contact with each other.

The plate (2) and the plate (2) are intended to be used as a means for opening and closing a container such as a bag or a handbag, or a locking means for fixing the adsorbent engaging device having such a structure to other objects.
4), and one of the methods is to use a plate (2).
) and the plate (4), a substantially U-shaped locking piece (5) is riveted (6) toward the outside of the opposite end surface.

The present invention has a characteristic configuration as described above, in particular, the magnet 1) is made relatively small and simple, and the edge of the magnet (1) is brought into contact with the edge in the opening direction when in use. By arranging the rod (4) B, specific effects of the above-mentioned cord characteristics can be expected.

As mentioned above, the engagement tool according to the present invention makes it easy to confirm the engagement position during use, and this ensures accuracy and smoothness of the engagement. The end face facing the opening/closing part of the product from this engaging part is made to be the attracting end face of the magnet (1) and the plate (4), and this prevents detachment as much as possible, and the rod (4)
B and the plate (2) are always in close contact with each other, and the adhesion force is increased as much as possible.

Furthermore, due to the configuration described above, not only the material cost but also the cost is relatively low, which makes it possible to provide a low-cost product.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing a magnetically attached state according to a typical embodiment of the present invention, and FIG. 2 is a perspective view of the same exploded parts. In Figure 1, (1)...Permanent magnet, (2)...Ferromagnetic plate, (3)...Case, (4)...Ferromagnetic plate, (5)
. . . Locking piece, (6) . . . Shows a stud.

Claims (1)

[Claims] A ferromagnetic part (2) is attached to one magnetic pole surface of the permanent magnet (1), and the permanent magnet ( 1) and the ferromagnetic part (2) are integrally held so that a part of the core part (2) protrudes laterally, and on the other magnetic pole surface of the permanent magnet (1). The ferromagnetic part (4) B protruding from the ferromagnetic part (4) which is removably attracted to the case (3) is brought into contact with and attracted to the surface of the ferromagnetic part (2) which protrudes laterally from the case (3). An engagement tool characterized in that it is designed to be pressed.