JP2561537Y2 - Magnet holder - Google Patents

Description

[Detailed description of the invention]

[0001]

The present invention relates to a magnetic material such as an iron plate fixed to the back of a door which is attached to the main body of furniture, such as a rack or sideboard for audio equipment, and which can be opened and closed with respect to the main body. The present invention relates to a magnet holder for attracting a plate so that the door does not open unnecessarily.

[0002]

2. Description of the Related Art A conventional magnet holder has a structure in which a plate-like magnet and a pair of plate-like yokes arranged so as to sandwich the magnet are housed in a resin casing. Then, the casing is mounted on the cabinet or the furniture main body side so that the pair of yokes project from the front surface of the main body, and the magnetic plate on the door side is attracted to the protruding yoke to prevent the door from being opened. Was.

[0003]

In the above-mentioned conventional magnet holder, a sufficient attraction force cannot be obtained unless a pair of yokes are in close contact with the magnetic plate on the door side. If the mounting of the holder and the mounting of the main body and the door are not correctly aligned, only one yoke and the magnetic body will be attracted, and thus the door will open unnecessarily without obtaining sufficient suction power. There was a problem.

[0004] As a part of the magnet holder,
Since there are many casings, magnets, and two yokes and parts, there is also a problem that assembling work is complicated and costs are increased.

The present invention solves the above-mentioned problems. By forming the magnet in a ring shape, it is possible to obtain a sufficient attraction force with a magnetic material even with a single yoke, and to reduce the thickness of the product. Since the number of parts can be reduced, the cost can be reduced by simplifying the assembling work, and furthermore, by forming the casing with one member, the number of parts can be further reduced and the workability can be improved. It is intended to provide a magnet holder.

[0006]

The magnet holder of the present invention has a cylindrical yoke storage portion having a through hole in the center and a substrate portion having a magnet storage portion formed on the outer periphery thereof, and an opening in the substrate portion. A casing comprising a lid for covering the surface, a ring-shaped magnet accommodated in the magnet accommodating portion, and a suction portion protruding from the upper surface of the magnet through the through hole of the yoke accommodating portion to the back surface of the casing. And a yoke arranged as described above. Further, in such a magnet holder, the casing has a base portion and a lid portion integrally formed via a thin connecting portion, and a claw portion formed at a tip of an arc wall of the substrate portion, and an arc of the lid portion. The lid is fixed to the substrate by engaging a claw formed at the end of the wall, and the top plate of the lid covers substantially half of the opening surface of the substrate. .

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a synthetic resin casing manufactured by one-time molding, and includes a substrate portion 11 and a lid portion 12, and a thin connecting portion 13 that connects the substrate portion 11 and the lid portion 12. .

The substrate portion 11 is formed on a disk portion 11a, a cylindrical yoke support portion 11b having a through hole with a surface formed at the center of the disk portion 11a, and an outer peripheral side of the disk portion 11a. An arc wall 11c of approximately 180 degrees and the arc wall 11c
And an auxiliary wall 11d formed at a concentric position. The space formed by the yoke support portion 11b, the arc-shaped wall 11c, and the auxiliary wall 11d becomes the magnet storage portion A.

[0009] At one end the inner surface of the arcuate wall 11c is formed pawl 11c _1, and is formed connecting portions 13 of the thin wall is continuous to the other end. The engaging projection 11c ₂ is formed in the center of the outer peripheral surface of the arcuate wall 11c. Further, the auxiliary wall 11d
The outer peripheral surface of the rib 11d ₁ are formed.

The lid portion 12 connected to the arc wall 11c via the connecting portion 13 is formed in a semicircular shape, and is integrally formed on a top plate portion 12a and a back surface of the top plate portion 12a. An arc wall 12b that forms a cylindrical wall with the arc wall 11c of the substrate portion 11, and a claw portion 11c of the arc wall 11c in the substrate portion 11 that is formed at a tip of the arc wall 12b.
₁ and engaging the claw portion 12b ₁ to be engaged is formed.

Meanwhile, the the inner surface of the arcuate wall 12b groove 12b ₂ of ribs 11d ₁ formed on the auxiliary wall 11d of the substrate portion 11 is inserted and fitted is formed, also the auxiliary in the center of the outer peripheral surface engaging projections 12b ₃ for forming the engaging protrusion 11c ₂ and a pair of walls 11c are formed.

2 is a magnet accommodating section A of the substrate section 11
A ring-shaped magnet 3 housed therein has a disk portion 3a having substantially the same size as the magnet 2, and a columnar suction portion protruding from one surface of the disk portion 3a and inserted into the yoke support portion 11b. 3b.

Now, the casing 1 constructed as described above.
When the magnet 2 and the yoke 3 are attached to the casing 1, first, the magnet 2 is housed in the magnet housing section A of the substrate 11 in the casing 1. In this state, the hole of the magnet 2 is in the yoke support portion 11b.
Is inserted.

Next, the yoke 3 is inserted into the yoke support portion 11b with the attraction portion 3b down and the attraction portion 3b down from the upper surface of the magnet 2. In this state, the tip of the suction portion 3b of the yoke 3 is
Projecting outward from the back surface of the.

Next, by folding the connecting portion 13 the lid part 12, by the claw portion 12b ₁ of the arcuate wall 12b engages with the claw portion 11c ₁ of the arcuate wall 11c of the substrate 11, the cover portion 12 substrate At the same time, the magnet 2 and the yoke 3 are attached to the magnet 2 and the yoke 3 with the top plate 12a of the lid 12 covering substantially half of the magnet 2 and the yoke 3 without falling out of the magnet storage section A.

Further, in this state, the arc wall 1 of the rib 11d ₁ lid portion 12 of the auxiliary wall 11d of the substrate portion 11
It fitted in the groove 12b ₂ formed on the back surface of the 2b. Therefore, the lid portion 12 is firmly fixed to the substrate portion 11 without rattling.

Next, in order to attach the magnet holder thus assembled to the main body B of the rack or the sideboard, the arc wall 11c of the substrate 11 and the lid 1 are attached to the main body B.
Cylindrical portion and a second arcuate wall 12b is continuously and exactly form the mounting hole B ₁ sized to be inserted, inserting arcuate wall 11c, and 12b to the mounting hole B _1. Then, the engagement projections 11c ₂ , formed on the respective arc walls 11c, 12b,
12b ₃ is located behind the mounting hole B ₁ and engages with the wall surface,
As a result, the magnet holder is fixed to the main body B.

When a magnetic material such as an iron plate fixed to the back surface of the door is brought into contact with the magnet holder attached to the main body B, the attracting portion 3b of the yoke 3 is attracted to the magnetic material. The door can be prevented from opening unnecessarily.
Further, since the magnet 2 has a ring shape and the yoke has a disk shape, the magnet 2 can be made thin even though a large attraction force is obtained.

[0019]

As described above, according to the present invention, a ring-shaped magnet and a disk-shaped yoke are housed in a casing, and a columnar suction portion formed on the yoke is projected from the casing through a hole of the magnet. Since the magnetic material on the door side is attracted by the tip of the attracting portion, the product can be made thinner and the number of parts can be reduced, so that the assembly work can be simplified and the cost can be reduced. In addition, by forming the casing with one member, there are effects such as further reduction of parts and improvement of workability.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a magnet holder of the present invention.

FIG. 2 is a developed plan view of a casing.

FIG. 3 is a perspective view showing a state where the magnet holder of the present invention is assembled and attached to a main body.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 11 Substrate part 11a Disk part 11b Yoke accommodating part 11c Arc wall 11d Auxiliary wall 12 Cover plate 13 Connecting part 2 Magnet 3 Yoke

Claims (2)

(57) [Scope of request for utility model registration] A casing having a cylindrical yoke storage part having a through hole in the center and a magnet storage part formed on the outer periphery of the yoke storage part; a lid covering an opening surface of the substrate part; A ring-shaped magnet housed in the housing portion, and a yoke arranged so that the suction portion protrudes from the upper surface of the magnet through the through hole of the yoke housing portion to the rear surface of the casing. Magnet holder to do. 2. The magnet holder according to claim 1, wherein the casing has a base portion and a lid portion integrally formed through a thin connecting portion, and a claw portion formed at a tip of an arc wall of the base portion. And the lid is fixed to the substrate by engaging the claw formed at the tip of the arc wall of the lid.
The top plate of the lid covers substantially half of the opening of the substrate.