JP4605369B2 - Engagement structure of distribution board door - Google Patents

Description

The invention relates to a structure for engaging a door body of a distribution board in which various electric devices are housed in a base, the front surface of the base is covered with a cover, and the base covered with the cover is further covered with a door body It is about.

Cover covering the front opening of the base, the left and right sides or the provided desorption pawl in the lower portion of the end near, or to fit the cover to the base by operating the desorption pawl by hand, to release the engagement I was doing. In the case of a large distribution board, the center part of the cover is lifted only by the attachment and detachment nail, and there is a possibility that a foreign matter such as dust may enter due to a gap.

Therefore, a temporary fitting claw 33 is provided in the lower center portion of the base 32 in the particularly large distribution board 31. When the cover 34 is attached to the base 32, a temporary fitting claw 33 is hooked on the cover 34 by an elastic force so that there is no gap between the cover 34 and the base 32.
Kawamura Catalog Electric Materials No. 34 Revised on May 1, 2003

However, the provisional fitting pawl in the above prior art is hooked on the cover only by elasticity, so if the fitting is weak, a gap will be vacant, and if the fitting is strong, it will not easily come off when removing the cover, There was a risk of damaging the surrounding portion of the temporary fitting pawl.

Then, this invention aims at providing the cover engagement structure of the distribution board which can remove | desorb a cover smoothly, The structure is
Cover the engaging body provided with an engaging portion to Rutotomoni end is biased by a spring provided on,
The base is provided with an engagement piece that engages with the engagement body,
Engaging body is intended to movable in conjunction with the opening and closing operation of the energized with the door body so engaging portion is separated from the engaging piece,
The engaging portion engages with the engaging piece when the door is closed.

Further, the engaging body is movable by a rotating operation, and the engaging body is pushed and rotated by the end of the door body by the operation of closing the door body, and the engaging portion is attached to the engaging piece provided on the base. Engage and fix the cover to the base.

Engaging the door body engagement structure of the distribution board according to the present invention, cover the engaging body provided with the engagement portion to Rutotomoni end is biased by a spring provided on, the base that engages with the engaging body the engagement piece is provided, the engaging body is intended to movable in conjunction with the opening and closing operation of the door body, for engaging the engager engaging piece when closing the door body, the virtual fit as in the prior art The cover can be removed and attached without being affected by the strength of the nails, improving workability.
Further, the conventional, although fitting nails provisional had to be able to remove the cover by simply removing the temporary engagement claws of relying only on the elastic force, in the desorption pawl according to the present invention Since the engagement and the disengagement can be performed by the operation of the door body, the base and the cover can be reliably engaged and can be reliably closed.

Further, the engaging body is movable by a rotating operation, and the engaging body is pushed and rotated at the end of the door body by the operation of closing the door body, and engages with an engaging piece provided on the base, Since the cover is fixed to the base, the cover can be smoothly attached and detached without being affected by the strength of the temporary fitting pawl as in the prior art, and workability is improved. Further, the conventional, although fitting nails provisional had to be able to remove the cover by simply removing the temporary engagement claws of relying only on the elastic force, in the desorption pawl according to the present invention Since the engagement and the disengagement can be performed by the operation of the door body, the base and the cover can be reliably engaged and can be reliably closed.

Further, the engaging body is movable by a sliding operation, and the engaging body is pushed and slid to the end of the door body by the operation of closing the door body, and engages with an engaging piece provided on the base, Since the cover is fixed to the base, the cover can be smoothly attached and detached without being affected by the strength of the temporary fitting pawl as in the prior art, and workability is improved. Further, the conventional, although fitting nails provisional had to be able to remove the cover by simply removing the temporary engagement claws of relying only on the elastic force, in the desorption pawl according to the present invention Since the engagement and the disengagement can be performed by the operation of the door body, the base and the cover can be reliably engaged and can be reliably closed.

  The purpose of smoothly removing and attaching the cover was achieved with a minimum number of parts and the engagement of the pawls with certainty.

  An embodiment of a door body engaging structure for a distribution board according to the present invention will be described with reference to the accompanying drawings of FIGS.

Cabinet 2 for distribution board 1 and the base 4 for mounting electrical equipment such as a breaker 3, a cover 5 for covering the front opening of the base 4, a front surface of the base 4 coated with a cover 5 further lidding It is comprised with the door body 6 to do. Cover 5 desorption claw 7 on the left and right sides provided by operating manually desorption pawl 7 may or release the fitting or to fit the cover 5 to the base 4. When the cabinet 2 of the distribution board 1 is large, there is a possibility that a gap may be formed in the central portion of the cabinet 2 in the longitudinal direction.

The engaging body 8 is provided on the cover 5, and the base 4 is provided with an engaging piece 4 a that engages with the engaging portion 8 b of the engaging body 8 . Engaging body 8 is intended to movable in conjunction with the opening and closing operation of the door 6, the engagement portion 8b of the engaging body 8 when closing the door 6 is to engage the engagement piece 4a. The engagement body 8 is biased by a spring so that the engagement portion is separated from the engagement piece . When the door body 6 is opened, the engagement is released and the engagement body 8 returns to the original position.

Embodiment 2 of the cover engaging structure of the distribution board according to the present invention is the same as in Embodiment 1. The engaging body 8 is provided with a claw portion 8a having a tapered tip at one end and engaged at the other end. A portion 8b is provided. The engaging body 8 is attached to the cover 5 and is movable by a rotating operation. The cover 5 is provided with a protruding hole 9, and the claw portion 8 a is protruded from the protruding hole 9. The engagement body 8 is biased by a spring so that the pawl portion 8a is directed downward when the door body 6 is opened. A tapered portion 6a is also formed inside the door body 6 so as to face the pawl portion 8a. An engagement piece 4 a is provided at the opening end of the base 4.

  When the door body 6 is closed, the taper portion 6a provided on the door body 6 is tapered at the tip of the claw portion 8a. The cover 5 can be fixed to the base 4 when the door 6 is closed by engaging with the engaging piece 4a provided on the base 4. Moreover, since the engaging body 8 is urged | biased by the spring, when the door body 6 is opened, it will return to the original position.

The cover engaging structure of the distribution board according to the present invention is not limited to the shape in which the cover 5 is engaged with the base 4 by the rotation of the engaging body 8 as shown in the second embodiment. Modifications can be made as appropriate without departing from the spirit of the invention.

When removing the distribution board cover during wiring work, etc., the cover is engaged with the base of the cover in conjunction with the operation of closing the door, and the cover is engaged with the base by the operation of opening the door. Therefore, there is no need for special operation, so that the cover can be securely fastened to the base and the engagement with the base can be released, ensuring the engagement of the cover with the door closed. In particular, the cabinet can be applied to a large distribution board.

It is explanatory drawing which shows the cover engagement structure of the distribution board which concerns on this invention. (Example 1, Example 2) It is a partial cross section figure which shows the cover engaging structure of the distribution board which concerns on this invention. (Example 1, Example 2) It is explanatory drawing which shows the cover engagement structure of the conventional distribution board.

DESCRIPTION OF SYMBOLS 1 Distribution board 2 Cabinet 3 Breaker 4 Base 4a Engagement piece 5 Cover 6 Door body 6a Tapered part 7 Detachment nail 8 Engagement body 8a Nail part 8b Engagement part 9 Protrusion hole

Claims (2)

It is an engagement structure of a distribution board cover in which various electrical devices are housed in a base, the front surface of the base is covered with a cover, and the base covered with the cover is further covered with a door. And
The engaging body provided with an engaging portion to Rutotomoni end is biased by a spring provided in said cover,
The base is provided with an engagement piece that engages with the engagement body,
The engagement body are those engaging portion is movable in association with the opening and closing operation of the door body is biased away from said engagement piece,
An engagement structure for a cover of a distribution board, wherein the engagement portion engages with the engagement piece when the door body is closed. The structure for engaging the cover of the distribution board,
The engaging body is movable by a rotating operation, and the engaging body is pushed and rotated by an end portion of the door body by an operation of closing the door body, and the engaging portion is provided on the base. The distribution board cover engagement structure according to claim 1, wherein the cover is engaged with the engagement piece and the cover is fixed to the base.

Images