JPS58105511A - Engaging device - Google Patents

Abstract

PURPOSE:To prevent the breakage of a magnet caused by the shaking, by a method wherein a hole of the magnet is engaged to a hole edge flane of a case. CONSTITUTION:A magnet 1 and a ferromagnetic plate 2 are fitted to a case 4 with a hole 4a communicating to a hole 1a of the magnet 1. A hole edge flange 4b of the case 4 is engaged to end of the hole 1a, and a pawl 4c is bent on the fitting surface 2. In this consitution, the magnet 1 and the ferromagnetic plate 2 are securely integrated by simple bending and the magnet is not shaky thereby efficiency of the assembling work is improved and the magnet is not broken. The ferromagnetic plates 2, 3 or levers 2a, 3a projecting therefrom are detachably abutted through the hole 1a to each other by magnetic force thereby an engaging device is obtained.

Description

[Detailed Description of the Invention] This invention relates to the structure of the assembly of an engaging tool using a permanent magnet, and in particular, the retaining hole of the permanent magnet number is securely located in the center hole of the case. The present invention relates to the disclosure of an engaging tool which is made to have a 61-inch shape with a diagonal alignment and a simple folding of the claw in the integrated case of the magnet 11) and the plate 121.

Previously, this type of engagement tool was bent 90 degrees toward the inside of the tube, and the bending process required special skill and required a lot of work. 0 Father, if the magnet that does not fit into the case is required to be in close contact with the S surface inside the case, and if it does not come in close contact, the magnet will become unstable with respect to the case, and it will not fit into the case. The present invention was specially devised in view of the inconveniences in the prior art. One of the main purposes is to make the hole of the magnet engage with the edge of the hole in the case, to eliminate any wobble in the tB stone, and to effectively correct errors in the size of the magnet. This is how it was done.

Another main object of the present invention is to simplify the bending of the opening edge of the case to improve work efficiency. The magnetic pole surface of a permanent magnet 11) is formed by opening a hole for securing from one magnetic pole surface to the other magnetic pole surface in order to achieve appropriate and purposeful effects on the magnetic properties of the permanent magnet 11). A ferromagnetic plate (2
) and a magnetic plate (3), which is in removably abutted with the upper number plate on the vIk pole surface, are arranged to protrude from either or both of the plates (2) and 13. The ferromagnetic rod (2) 131a is magnetically and removably brought into contact with the other plate 121.131 or the other keyaki (2) 8% 13) a end through the hole 11) a -+4. The magnet 11) and the plate 12) are placed in a non-magnetic case (4) in the shape of an inverted dish having a hole 14) a communicating with the hole a.
A claw piece 141 protruding from the edge of the opening of the case +4) at the end of the hole (1) a in the magnet +1) is fitted, and is bent onto the surface of the mounting plate (2) to form an integral part. d: In addition to setting out the points that were made to be effective, the outline of such a structure was planned by the accompanying design room 1't.

Hereinafter, a typical embodiment of the present invention shown in the drawings will be described in detail. 118 t-fel! It is a permanent magnet with two legs.

! A ferromagnetic plate 121 is properly attached to one of the 1li11 surfaces, and the ferromagnetic plate 121 is removably attached to the other magnetic pole surface.
The ferromagnetic rod 12+ a t- is made to protrude from the plate (2) with the ferromagnetic rod 131 and the other @
131 In a retainer in which the magnet (1) is removably abutted, the magnet (1) is placed inside a non-magnetic case 14) having an inverted dish shape and having a hole (4) af communicating with the a hole 11) a. ;
and the plate (2), and the hole (1) a in the magnet 11).
At the end, a claw piece 141 Ct protruding from the opening edge of the case 14) with a hole guard (41b) in the case 14) so as to evenly align the holes 141 It is designed to be fixed.

The present invention has a characteristic structure in soft soil, especially a hollow hole '1) a
+4) s I? Fit the magnet (sheet plate) into the case (4) with a t-hole, and insert the case (
4) Hole forging collar 14) b Claw piece (4) cf that engages with vf7 and is bent onto the + surface of fitting plate 12
The provision of Cζ effectively corrects the deficiencies of the prior art described above.

Now, other typical embodiments of the present invention will be explained! In Figures 2, 5 and 6,
A ferromagnetic rod 12)m is attached to the plate (2), and a ferromagnetic rod 131a is attached to the plate 131a through holes +1)al so that they can be freely attached and detached.

In Fig. 3, a ferromagnetic rod 131 a f leg piece is attached to a plate 13+ via a washer Vr.
2) and the washer (5) are integrally connected to the magnet I by the claw 143c.
The rice 12+ and leg piece (5)a can be easily attached to the broom by simply bending the claw +4)C.

In Fig. 4, only the plate (2) is installed; 2) a is completely attached so that the free end surface of a can be magnetically attached to and detached from the plate 13; A filter casting collar 13)a is provided in which the case (4) is fitted.

A ferromagnetic plate (6) for shielding is added to the upper surface of the magnet f1 in FIG. 5 (ζ) to enhance the shielding effect.

816 In this case, plate 13) is a curved surface, and magnet Il
+ and the case (4) are provided with a concave closed surface to correspond to the rice 131.

In the embodiment with the above configuration 1:, first, the magnet C1 is placed in advance so that the hole edge flange +41b in the case 14) is tightly fitted to the general a end plate for 511 stones. )
hole! 118 or hole grade tsuba 141 b t- is specified, and after fitting the magnet to the case (4),
Attach the ferromagnetic rod 12:a to the plate +21 through the washer (5) having a leg piece (518') and fit it into the case (4) by bringing it into contact with the magnet 13 surface. The claw piece 14)C in the plate is bent on the surface of the plate 121 so that it can be attached correctly, and it is very easy to operate and securely t).
-511.

In the present invention, the non-magnetic case (4) has a hole 141 a t- which communicates with the hole 31 a of the magnet 11).
Fit the magnet 11) inside the hole sweep flange (4) of the case 14).
Since the magnet (b) is engaged with the hole 11)a, even if the magnet (1) is not in close contact with the case 14), it is supported by the retaining part, so that no wobbling occurs. This effectively prevents the magnet from being damaged due to wobbling, which was the case in the past.

As described above, the present invention ensures that the central hole 141a of the case (4) using 111 permanent magnets coincides with the center hole 141a of the case (4) using 111 permanent magnets, and allows the magnet Il) and the plate (2; (
The purpose of the present invention is to provide an engaging tool that can be reliably secured by simply folding the claw pieces 14)C in 4).

[Brief explanation of drawings]

Figure at is an exploded perspective view of a typical embodiment of the present invention shown at N', and Figures 2 to 6 are cross-sectional views of other typical embodiments of the invention. . In addition, in the figure 1.1... permanent magnet & 121.131...
・Strong steel plate, 14)...Case, (5)...Washer,
(6)...This is a book that shows the characteristics of a strong FiB board. Patent Applicant Co., Ltd. Tamo Representative Patent Attorney Minoru Kuwahara Figure 2 5a Figure 3 Figure 4 Figure 6

Claims (1)

[Claims] Engagement hole 11 from one magnetic pole surface to the other magnetic pole surface
) A is opened on one side of the magnetic pole face of the permanent magnet Ill (C
The ferromagnetic rice (2) on the streetcar and the ferromagnet with a removable magnetic plate attached to the pole surface (raw version 131?, spider 1)
2+, +31 (both or either) ferromagnetic 4121 a, +a+ that is protruded from one side.
a 2 through the hole 'II a k on the other plate 12), 1
3) or the other side (early 12 + a, l: pull a end number @ engagement so that it can be detachably brought into contact with the hole 14) that communicates with the hole 'II 8 in the middle of winter;
The inner number of the non-magnetic case (4), which has a shape, is engaged with the magnet Il+ and the hook (2), and the hole edge flange 141 b' of the case 14 is engaged with the hole Ill @ end for the magnet. A claw piece 141 C? is provided with a protruding edge on the opening edge of the case (4). An engagement device characterized in that it can be bent over a length of 5121 cm and fixed integrally.