JPH0315046U - - Google Patents

Description

[Brief explanation of drawings]

Fig. 1 is a perspective view showing an embodiment of the magnetic fixing device of the present invention, Fig. 2 is an enlarged sectional view of the magnetic fixing device of Fig. 1, and Fig. 3 is an exploded perspective view of the magnetic fixing device of Fig. 1. , FIG. 4 is an enlarged front view showing one embodiment of the permanent magnet used in the magnetic fixing device of FIG. 1, FIG. 5 is a side view showing another embodiment of the permanent magnet, and FIG.
An enlarged side view showing one embodiment of the plate used in the magnetic fixing device shown in the figure, FIG. 7 is a sectional view taken along line 7-7 in FIG. 6, and FIG. An enlarged front view showing an example of the operating knob used;
9 is a right side view of the operating knob of FIG. 8, and FIG. 10 is a front view showing another embodiment of the operating knob. 20...Magnetic fixing device, 22...Magnetic circuit block, 28...Magnetic action surface, 30...Inner cavity, 32
... Permanent magnet, 34 ... Recessed part of permanent magnet, 36 ...
...Plate, 54, 70...Operation knob, 66...
Elastic body.

Claims (1)

[Claims for Utility Model Registration] (1) A magnetic circuit block having a pair of magnetically active surfaces and a lumen with one end open, and a permanent magnet rotatably disposed within the lumen in the diametrical direction thereof. a permanent magnet having recesses on both end faces that are elongated and open at the end faces; and the inner cavity of the permanent magnet is open so as to rotate the permanent magnet to selectively place the magnetically active surface in an energized state and a de-energized state. an operation knob fitted into the recess at the side end; a plate disposed on the end surface of the magnetic circuit block on the side where the inner cavity opens; an elastic body disposed between the end opposite to the operation knob and the magnetic circuit block, the recess having the same size and shape, and a part of the elastic body being disposed in the recess. Accepted, magnetic fixation device. (2) The elastic body is made of an elastic material that can be elastically deformed three-dimensionally, and a part of the elastic body is received in the recess in a compressed state in the diametrical direction of the permanent magnet. The magnetic fixing device described in 1). (3) The magnetic fixing device according to claim (2), wherein the elastic body has a disc-like or cubic shape having a thickness larger than a depth of the recess. (4) Claim (4) wherein both the recesses extend parallel to each other.
The magnetic fixing device described in 1). (5) A magnetic circuit block having a pair of magnetically active surfaces and a lumen that is open at one end, and a permanent magnet rotatably disposed within the lumen, extending in the diametrical direction and located deep within the lumen. a permanent magnet having a concave portion opening on an end face of the permanent magnet; and a permanent magnet having a concave portion opening on the end face of the permanent magnet, and a side of the permanent magnet where the inner cavity opens so as to rotate the permanent magnet to selectively place the magnetically active surface in an energized state and a non-energized state. an operating knob engaged with an end; an elastic body disposed deep in the inner cavity between the end of the permanent magnet on the side of the recess and the magnetic circuit block; and the magnetic circuit. a plate disposed on the end surface of the block on the side where the inner cavity opens, the elastic body is made of an elastic material that can be elastically deformed three-dimensionally, and a part of the elastic body is arranged in the recessed part to accommodate the permanent magnet. magnetic fixation device, which is received in diametrically compressed condition.