JPS585014Y2 - magnetic catch - Google Patents

Description

[Detailed description of the invention] This invention relates to an improvement of a magnetic catch that is used for locking relatively small and light doors, such as furniture doors. A synthetic resin molded into a bottomed cylindrical body with threaded parts on the outer periphery (for 74) □A yoke iron piece with a magnet in the center and along both sides of the housing member. At the inserted magnetic catch of ゛,
The magnet and yoke iron piece are placed on both sides of the
A pair of locking holes are provided through the section (3) to prevent the
! A non-return claw formed on the outer surface of the iron piece L is latched, while the outer end surface of the magnet fitted into the housing part is opposed in the diametrical direction of the fitting shell and protrudes into the housing part. It is characterized by being restrained by a pair of restraining pieces.

Conventionally, in this type of embedded magnetic catch, there was no suitable fixing means to fix the yoke iron piece together with the magnet in the bottomed cylindrical housing member, so it was press-fitted with minimal fitting clearance. This has the drawback of forcing an unreasonable fitting operation, which increases the variation in accuracy.

Therefore, in the present invention, a pair of locking holes are provided on both sides of a housing member made of synthetic resin, and a check claw formed on the outer surface of the yoke iron piece is hooked into the locking holes, and a pair of locking holes are provided in the fitting opening of the housing member. Provided is a magnetic catch that facilitates assembly work and improves product accuracy by having a protruding piece that prevents the outer end surface of a magnet that is inserted into a housing part with this restraining piece. This is what I did.

Embodiments of the present invention shown in the drawings will be described in detail below.

, ,A? It is formed into a cylindrical body with a bottom made of resin, and a screw punch 1 with a fixed angle is integrally extended at the lower end. A fitting opening opened in the end face of the housing member A, 3 is a housing formed inside the fitting opening 2, G1 is a magnet, and F is placed along both 5 sides of the magnet G, along with the magnet G. When inserted into the housing part 3, two yoke iron pieces each have an arcuate cross section, and B is a cushioning material made of a sponge body interposed between the lower end surface of the yoke iron piece F and the bottom face of the housing part 3.

The housing member A has a pair of left and right locking holes 5 penetrating from the outer circumferential surface to the accommodating portion 3 on the lower side of the back surface of the flange portion 4 formed on the outer circumference of the upper end, and is provided at a predetermined position on the outer surface of the yoke iron piece F. A non-return claw 6 is provided with a stepped portion on the upper surface and is formed protrudingly.
is engaged with this locking hole 5 to lock the yoke iron piece F fitted into the housing portion 3.

Reference numeral 7 designates a pair of restraining pieces that protrude from the edge of the fitting opening 2 of the housing member A into the accommodating portion 3 and are opposed to each other in a diametrical direction perpendicular to the direction in which the locking hole 5 is opposed. Piece 7
prevents the outer end surface G' of the magnet G fitted into the housing portion 3 from the outside.

Note that 8 in the figure is a threaded portion provided on the outer periphery of the housing member A.

Next, to explain how to assemble this magnetic catch having the above-mentioned configuration, first insert the magnet G from the fitting opening 2 of the housing member A into the housing part 3 with the long diameter direction along the opposite direction of the locking hole 5. The magnet G is inserted into the accommodating portion 3 by rotating it by 90°, and bringing the outer end surface G' into contact with the lower surface of the restraining piece 7.

Next, one of the yoke iron pieces F is inserted into the housing part 3 together with one of the cushioning materials B, and the non-return claw 6 on the outer surface thereof is engaged with one of the locking holes 5.

When inserting the iron piece F on one side of the chisel, the work can be done very easily since the magnet G that is fitted first has some margin of avoidance.

Finally, the other yoke iron piece F is fitted together with the other cushion material B, but since the non-return claw 6 protruding from its outer surface is sloped low toward the tip in the insertion direction, a strong pressing force is required. Moreover, since the elastic action of the housing member A cooperates with the housing member A, the fitting can be performed with a relatively small pressure, and the check pawl 6 can be engaged with the locking hole 5.

When the assembly is completed in the manner described above, the magnet G and the yoke iron pieces F on both sides thereof are housed in a predetermined position in the housing part 3, and are latched by the restraining piece 7 and the engagement hole 5 so that they cannot be removed. Ru.

According to the present invention configured as described above and configured to be assembled as described above, assembly can be easily performed, and
It is possible to manufacture a magnetic catch in which the magnet and yoke iron piece are fitted into a housing member in a predetermined position and reliably prevents these members from coming off and rattling.

[Brief explanation of the drawing]

The drawings are based on the embodiment of the present invention, and Fig. 1 is a partially cutaway front view of the invention, Fig. 2 is a partially cutaway side view of Fig. 2, and Fig. 3 is a partially cutaway plan view of Fig. 2. Yes. G...Magnet, G'...Outer steel surface, F...
... Yoke iron piece, B ... Cushion material, A
...Housing member, 1 ... Screwdriver, 2
...Fitting opening, 3...Accommodating part, 4...
... Flange part, 5 ... Locking hole, εJl, j
, i')... Reverse 1゛ claw, 7...:... Thin strip, 8...
...Threaded part.

Claims (1)

[Scope of utility model registration request] A housing member A for embedding made of synthetic resin is formed into a bottomed cylindrical body with a fitting opening 2 opening on the end surface and a threaded portion 8 on the outer periphery, and a magnet G is placed in the center and placed along both sides of the housing member A. In the recessed type magnetic catch into which the yoke iron piece F is fitted, a pair of locking holes 5 are provided on both sides of the housing member A, and the locking holes 5 pass through the housing part 3 into which the magnet G and the yoke iron piece F are fitted. The locking hole 5 is provided with a non-return claw 6 formed on the outer surface of the magnet-q. This magnetic catch is characterized in that it is restrained by a pair of restraining pieces 7 which are arranged in the diametrical direction of the fitting opening 2 and protrude into the housing part 3.