JPH1141720A - Packing device for control board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the attachment of a packing between the control board and a door. SOLUTION: In a control board which has a box 1 and a door 2, which is attached to the front surface of the box 1 so as to be opened and closed with a hinge 3, a plate shaped supporting guide 6 is made to protrude from one of the front plate 5 of the front surface of the box 1 and the inner surface of the door 2 so as to surround the opening 4 of the box 1. A packing 7 has a cushion part 7a, which is pressed against the other of the front plate 5 and the inner surface of the door 2 and leg parts 7b which stride over the supporting guide 6, are pressed against both the side surfaces of the supporting guide 6, and are formed integrally with the cushion part 7a. The supporting guide 6 is held between the leg parts 7b of the packing 7, and both the side surfaces of the supporting guide 6 are pressed to hold by the leg parts 7b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting and holding a packing for sealing a box and a door of a control panel.

[0002]

2. Description of the Related Art The door of a control panel is generally opened and closed by a hinge,
To prevent dust, water, or internal pressure caused by accidents from blowing out to the front, attach a packing made of elastic material such as rubber or plastic to the inner surface of the door, and when the door is closed, the packing will be around the opening of the box. The packing is attached by pressing the bottom of the packing on the inside surface of the door with adhesive or double-sided tape, etc., at the position surrounding the opening of the box. As shown in Japanese Unexamined Patent Publication No. 58-15799, a guide for fitting the packing is provided on the packing mounting surface of the door, and the packing is inserted along the guide and attached with an adhesive.

[0004]

However, when the packing is directly adhered to the inner surface of the door, it is not easy to perform the positioning for linearly adhering to the opening of the box, and if the packing to be attached becomes long, Bending of the packing and sticking out of the adhesive were apt to occur, and the appearance was not good. Therefore, it was necessary to perform reattachment and reworking, and the work time was long and workability was poor. In addition, it is troublesome to install the guide to fit the packing evenly at the mounting interval between the guide plates on both sides, and if the U-shaped guide is welded to the mounting surface in advance, the corners will be bent. It is difficult to make it difficult to split the guide at the corner, so not only it takes time to insert and
In order to prevent the guide from coming off, it was necessary to bond the packing. The present invention provides a packing device in which a support guide is easily formed and a packing is easily attached to the support guide.

[0005]

For this purpose, a plate-shaped support guide is provided on the inner surface of the door or on the front surface of the box so as to surround the opening of the box, and straddles the cushion and the support guide. A packing is integrally formed with legs integrally pressed against both side surfaces, and the packing is attached by pressing and holding the support guide between the legs.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In a control panel provided with a door which can be opened and closed by a hinge on the front surface of a box, a projection surrounding the opening of the box is formed on one of the inner surface of the door and a front plate surrounding the opening on the front surface of the box. An elastic and flexible structure in which a plate-shaped support guide provided is attached, and a cushion portion pressed against the other surface of the inner surface of the door and the front surface of the box body and a leg portion that presses against both side surfaces across the support guide are formed integrally. A long packing having a property is provided, and the packing is attached and held by sandwiching both side surfaces of the support guide between the legs. The support guide may be protruded by fixing a plate having a width corresponding to the height of the leg portion at one side edge by welding or the like. May be applied to the mounting surface. Alternatively, the edge of the opening of the box may be bent outward. If the corners of the support guide are formed in an arc shape, the packing can be easily and reliably attached to the corners even if a continuous support guide is formed.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiment shown in FIG. 1 to 3, reference numeral 1 denotes a box of a control panel, 2 denotes a door,
It is mounted to open and close with a hinge 3. 4 is an opening in the front of the box, 5 is a front plate surrounding the opening 4, and 6 is a support guide protruding from the inner surface of the door 2 and having a width smaller than the distance a between the inside of the door 2 and the front plate 5. One side edge of the band-shaped plate is fixed to a position on the inner surface of the door facing the front plate 5 by welding or the like. Reference numeral 7 denotes a packing having elasticity and flexibility. As shown in FIG. 5, a cushion portion 7a pressed against the front plate 5 and leg portions 7b pressed against both sides with the support guide 6 therebetween are integrally formed. doing. Control parts to be attached to the inside of the box or to the door are omitted.

A plate-shaped support guide 6 is welded inside the door 2 in a ring shape so as to surround the opening 4 at a position facing the front plate 5, and one end of the packing 7 is opened by opening the leg 7b. When the support guide 6 is inserted so as to sandwich it and the cushion portion 7a is pressed, the leg portions 7b are pressed against both side surfaces of the support guide 6 and are held by frictional force. Therefore, while holding the packing 7 along the support guide 6 and pressing the cushion 7a, the leg 7
b, the packing 7 is continuously supported by the support guide 6.
Can be attached to If the corner 6a of the support guide 6 is not bent at a right angle but is formed in an arc shape and is rounded, the packing 7 at the corner can be easily inserted continuously from the straight portion.

The embodiment shown in FIG. 4 shows an example in which the support guide 6 is L-shaped and attached to the front plate 5 of the box 1, and the same parts as those in FIG. The L-shaped portion may be provided only in a portion necessary for attaching the support guide 6.

The support guide 6 is provided continuously around the entire circumference surrounding the opening 4. However, when the control panel is large, the support guide 6 is divided by an appropriate opposed gap which does not affect the holding of the packing 7. You may make it provide. If one of the legs of the packing 7 is elongated and inserted so as to be outside the support guide 6, the packing 7 is pushed into the support guide 6 and inserted. Can contact the mounting surface in a curved manner so that no gap is formed between the end of the packing leg and the support guide mounting surface.

[0011]

As described above, according to the present invention, a plate-like support guide is provided on one of the front surface of the box and the inner surface of the door at a position surrounding the opening of the box toward the other surface. It is equipped with a packing in which a cushion contacting the surface and a leg sandwiching the support guide are integrally formed, and the leg is pressed against both side surfaces of the support guide to attach and hold the packing to the support guide. Installation of the support guide is easy,
The packing can be easily attached to the support guide only by pressing the packing with a finger, and there is an effect that the legs can be securely held without the need for an adhesive or the like by pressing the legs. If the corners of the support guide are formed in an arc shape, the packing at the corners can be easily attached continuously without bending.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a control panel showing an embodiment of the present invention.

FIG. 2 is a cutaway view of a part of the packing in the inside view of the door of FIG. 1;

FIG. 3 is a partially enlarged sectional view taken along line AA of FIG. 1;

FIG. 4 is a view corresponding to FIG. 3, showing another embodiment.

FIG. 5 is a partial perspective view showing an example of packing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Box 2 Door 3 Hinge 4 Opening 5 Front plate 6 Supporting guide 7 Packing 7a Cushion 7b Leg

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kenichi Imanishi 2-1, Kurosaki Castle Stone, Yawatanishi-ku, Kitakyushu-shi, Fukuoka Prefecture

Claims (2)

[Claims] In a control panel provided with a door which can be opened and closed by a hinge on the front surface of a box, a plate-shaped support guide projecting around an opening of the box is provided on one of the front surface of the box and the inner surface of the door. And a packing in which a cushion portion pressed against the other of the front surface of the box and the inner surface of the door and a leg portion straddling the support guide and pressing against both side surfaces are integrally formed, and the support guide is sandwiched between the leg portions. A packing device for a control panel, wherein a packing is attached and held. 2. The packing device for a control panel according to claim 1, wherein the support guide has a corner portion formed in an arc shape.