JPH0315735Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Field of Application] The present invention relates to a magnetic catch mounting structure that holds a door in a closed position by magnetic attraction.

[Conventional technology]

As disclosed in Japanese Utility Model Application Publication No. 55-86863, in the conventional magnetic catch, the magnet and the yoke plate are housed in a box-shaped body, and the magnet and the yoke plate are housed in the bottom of the box-shaped body. It is pushed to the standby position, and a mounting plate is provided protruding from the front end of the side wall plate of the box-shaped main body.

This magnetic catch is fixed to the object to be mounted, such as a door, by screws inserted into the mounting holes of the mounting plate, but in such a mounting structure, screws or screws and nuts are used as the fixing means. On the other hand, it is necessary to provide a screw hole into which the screw is screwed or a through hole through which the screw is inserted into the object to be installed, and the installation requires the laborious work of screwing in the screw. This requires a screwing operation between the screw and the nut.

[The problem that the idea attempts to solve]

Therefore, the purpose of the present invention is that since the elastic bottom plate also serves as a fixing means, there is no need to separately prepare fixing screws, and the number of component parts can be reduced. To provide a mounting structure for a magnetic catch that eliminates the need for machining a screw hole and allows a box-shaped body to be fixed to an object to be mounted by an extremely simple single fitting operation.

[Means to solve the problem]

The following description will be made using the reference numerals in the attached drawings. In the mounting structure of the magnetic catch of the present invention, the magnetic catch is inserted into the mounting hole 9 of the mounting object 8, and attached to the box-shaped main body 1 whose back surface is completely open. A front plate part 1a whose peripheral edge abuts the front surface of the attachment target 8 is provided, a vertical hole 2 is provided in the front plate part 1a, and a horizontal hole is provided in the front end of the left and right side wall plate parts 1b of the box-shaped main body 1. 3, and a protrusion 5a to be fitted into the vertical hole 2 is provided at the front end of a yoke plate 5 housed in the box-shaped main body 1 with the magnet 4 in between.

The box-shaped main body 1 is located on the bottom side of the magnet 4 and the yoke plate 5.
The main body portion 7b of the elastic bottom plate 7 accommodated in is curved convexly toward the front plate portion 1a of the box-shaped main body 1, and a rising portion 7a that slides into contact with the inner surface of the side wall plate portion 1b of the box-shaped main body 1 is formed. It is connected to both left and right ends of the main body portion 7b.

A protrusion 6 that protrudes and retracts from the horizontal hole 3 is provided at the tip of the rising portion 7a, and an inclined surface that comes into contact with the hole edge on the front side of the attachment hole 9 of the attachment target 8 is provided on the outer surface of the protrusion 6. 6b and the inclined surface 6a that engages with the hole edge on the rear side of the mounting hole 9 are formed in opposite directions.

[Effect]

To assemble this magnetic catch, first, the magnet 4 and the yoke plate 5 are inserted into the box-shaped main body 1 from the fully open rear part, and then the yoke plate 5 is housed.
The convex portion 5a is inserted into the vertical hole 2 of the front plate portion 1a.
Next, each inclined surface 6a of the protruding portion 6 of the left and right rising portions 7a is abutted against the inner edge surface of the rear end portion of the left and right side wall plate portions 1b, and the elastic bottom plate 7 is moved in the direction shown by the arrow in FIG. Push it into the box-shaped main body 1.

During this pushing, each inclined surface 6a acts as a cam surface, so the left and right rising portions 7a bend inward, that is, toward the left and right end surfaces of the magnet 4 and the yoke plate 5, and the elastic bottom plate 7 It is pushed into the box-shaped main body 1 while making sliding contact with the inner surface of the portion 1b.

At the end of the pushing operation of the elastic bottom plate 7, when the protruding part 6 of the rising part 7a reaches the position of the horizontal hole 3 of the side wall plate part 1b, the rising part 7b is pushed outward, that is, from the left and right end surfaces of the magnet 4 and the yoke plate 5. The protrusion 6 protrudes from the horizontal hole 3 because it restores itself elastically in the direction of moving away.

At this time, as shown in FIG. 6, another inclined surface 6b of the protrusion 6 engages with the edge 3b of the horizontal hole 3, so that the elastic bottom plate 7 is prevented from escaping from the box-shaped main body 1.

To attach the assembled magnetic catch to the object 8 such as a door, as shown by the arrow in FIG. It is only necessary to insert it into the mounting hole 9.

When the inclined surface 6b of the projection 6 comes into contact with the hole edge on the front side of the mounting hole 9 during this insertion operation, the inclined surface 6b acts as a cam surface, so that the rising portion 7b of the elastic bottom plate 7 It bends inward, and the protrusion 6 connects to the horizontal hole 3.
You will be more immersed in the box-shaped main body 1.

At the end of the insertion operation, when most of the horizontal hole 3 protrudes toward the back side of the attachment object 8, the rising portion 7b
is elastically restored to the outside, so that the protrusion 6 protrudes from the horizontal hole 3 again, and the inclined surface 6a engages with the rear edge of the attachment hole 9.

In this way, the projection 6 of the rising portion 7b of the elastic bottom plate 7 engages with the rear hole edge of the mounting hole 9 on the inclined surface 6a, so that the peripheral edge of the front plate 1a of the box-shaped main body 1 is It is attracted to the front surface of the object 8 to be attached, and the attachment of the magnetic catch is completed.

As shown in FIG. 10, since the main body portion 7b of the elastic bottom plate 7, which is curved convexly toward the front plate portion 1a, is in contact with the rear end surface 5b of the yoke plate 5, Established receiver (not shown)
When the yoke plate 5 is attracted to the yoke plate 5, the elastic bottom plate 7 is elastically deformed to provide a good buffering effect.

[Effect of idea]

As described above, in the present invention, the box-shaped main body 1 whose rear part is completely open is provided with the front plate part 1a that contacts the front surface of the attachment target 8 at the peripheral edge, and the left and right side wall plate parts 1b of the box-shaped main body 1. A horizontal hole 3 is provided at the front end of the yoke plate 5, and a convex portion 5a is provided at the front end of the yoke plate 5 to fit into the vertical hole 2 of the front plate portion 1a. The main part 7b of the elastic bottom plate 7 to be accommodated is curved convexly toward the front plate part 1a, and the side wall plate part 1
The rising portion 7a that comes into sliding contact with the inner surface of b is the main body portion 7.
b, a protrusion 6 is provided at the tip of the rising portion 7a to protrude and retract from the horizontal hole 3, and an inclined surface abuts against the hole edge on the front side of the mounting hole 9 of the mounting object 8. 6b and an inclined surface 6a that engages with the hole edge on the rear side of the mounting hole 9 are formed on the outer surface of the projection 9 so that they are oriented in opposite directions, and the elastic bottom plate 7
is used not only as a buffering means for the yoke plate 5, but also as a means for fixing the box-shaped main body 1 to the object 8 to which it is attached, so unlike the conventional magnetic catch mounting structure, a separate fixing screw is required. There is no need to prepare, therefore, the number of component parts can be reduced and manufacturing costs can be reduced, and there is no need to process holes for screws or screw holes in the object to be attached.

Further, since the attachment to the box-shaped main body can be completed by a single extremely simple operation of inserting the attachment object 8 into the attachment hole 9, the attachment workability is excellent.

[Brief explanation of the drawing]

The drawings show a mounting structure of a magnetic catch according to an embodiment of the present invention, and FIG. 1 is a perspective view of the magnetic catch in an exploded state. Second
The figure is a front view of the assembled magnetic catch, FIG. 3 is a left side view of the magnetic catch, FIG. 4 is a plan view of the magnetic catch, and FIG. 5 is a front view of the magnetic catch. FIG. FIG. 6 is a sectional view taken along line B-B in FIG.
The figure is a sectional view taken along the line A-A in FIG. 2, FIG. 8 is a sectional view of the magnetic catch immediately before the elastic bottom plate is fitted into the main body, and FIG. FIG. 10 is a cross-sectional view of the magnetic catch just before it is inserted into the mounting hole, and FIG. 10 is a cross-sectional view of the magnetic catch after installation is completed. 1...Body, 2...Vertical hole, 3...Horizontal hole, 4...Magnet, 5
...Yoke plate, 6...Protrusion, 7...Elastic bottom plate, 7b...Main part of the elastic bottom plate.

Claims (1)

[Scope of utility model registration request] A box-shaped main body 1 that is fitted into a mounting hole 9 of an attachment object 8 and whose back surface is completely open is provided with a front plate part 1a whose peripheral edge abuts the front surface of the attachment object 8. A vertical hole 2 is provided in the box-shaped main body 1, a horizontal hole 3 is provided in the front end of the left and right side wall plate portions 1b of the box-shaped main body 1, and a horizontal hole 3 is provided in the front end of the yoke plate 5 housed in the box-shaped main body 1 with the magnet 4 in between. A convex portion 5a that is fitted into the vertical hole 2 is provided, and the main portion 7b of the elastic bottom plate 7, which is housed in the box-shaped body 1 on the bottom side of the magnet 4 and the yoke plate 5, is attached to the front plate portion 1a of the box-shaped body 1. A rising portion 7 that is curved in a convex manner and comes into sliding contact with the inner surface of the side wall plate portion 1b of the box-shaped main body 1.
a are connected to both left and right ends of the main body portion 7b, and a protrusion 6 that protrudes and retracts from the horizontal hole 3 is provided at the tip of the rising portion 7a. A mounting structure for a magnetic catch in which an inclined surface 6b that contacts the front edge of the mounting hole 9 and an inclined surface 6a that engages the rear edge of the mounting hole 9 are formed in opposite directions. .