JPH0351854Y2 - - Google Patents

Description

[Detailed description of the invention] (Industrial application field)
Or related to a support structure for a plug-in switch that is connected to equipment with a plug and socket and made removable in order to change its function, such as a plug-in switch installed in a plug-in bus duct of an automobile's power transmission and distribution equipment. It is.

(Prior Art and its Problems) Conventionally, the above-mentioned plug-in switch has been attached to a plug-in bus duct or the like through a separate support fitting. Therefore, not only does it require a lot of man-hours to attach and detach, but the support metal fittings, tools, etc. may accidentally sneak into the plug-in hole due to a fall, etc., and short circuits and ground faults are likely to occur. In addition, since plug-in switches are generally not provided with an insertion guide, they have the disadvantage that insertion is difficult and may lead to deformation or breakage of the clip portion, or even interference with other parts.

(Means for Solving the Problems) In view of the above, the present invention eliminates falling objects by integrating the support fittings with the switch body, thereby reducing the danger associated with falling, and also provides an insertion guide. This was devised in order to not only eliminate damage to equipment such as the clip part, but also to reduce the overall man-hours required for installation and removal. At the same time, a bolt is irremovably attached to one of the fixed piece and the open piece, a nut that can be screwed onto the bolt is fixed to the other, and the support fitting is further fixed. A horizontal portion is formed by extending the piece toward the rear of the switch body, and this horizontal portion can be used as an insertion guide portion.

(Function) To attach the switch body to a bus duct case, etc., screw the bolt into the fixing nut, tighten it, and rotate the open piece in the fixing direction to fix the support fitting fixed to the switch body. This is done by holding the flange of the bus duct case between the opening piece and the opening piece, and this removal is done by loosening the bolt, unscrewing the fixing nut, and rotating the opening piece to open it.

(Example) The drawing shows an example of the present invention.
is the switch body of the plug-in switch, and clips 2, 2, etc. are protruded from the back side of the switch body. 3
is a bus duct case, into which are inserted bus bars 4, 4, etc. for electrical connection with the above-mentioned clips 2, 2, respectively. Flange portions 3a, 3a are formed.

Reference numeral 5 denotes a support fitting, which includes a fixing piece 6 having a horizontal portion 6a as an insertion guide portion protruding backward and a rising portion 6b in the vertical direction, and an L-shaped cross section having a forward protruding portion 7a and a vertical portion 7b. The opening piece 7 is fixed to the back surface of the switch body 1 via the fixed piece 6, and the tips of both 6 and 7 are connected by a hinge 8, so that the opening piece 7 can be rotated. It is configured to be flexible. An elongated hole 6c is bored in the rising portion 6b of the fixing piece 6, and a butterfly bolt 9 is attached thereto, and a vertical portion 7b of the open piece 7 has a hole 6c that can be freely screwed into the butterfly bolt 9. A fixing nut 10 is fixed by welding or the like, and a fall prevention nut 11 is screwed behind the rising portion 6b of the fixing piece 6 of the butterfly bolt 9.

The fixed piece 6 has open pieces 7, 7 connected to its upper and lower ends, respectively, and upper and lower support fittings 5, 5.
However, it goes without saying that they may be provided separately.

Note that 12 is a hard rubber attached to the tip of the protrusion 7a of the opening piece 7, 13 is a washer, and 14 is a screw washer.

That is, by screwing the butterfly bolt 9 into the fixing nut 10 and tightening it, the opening piece 7 is rotated in the direction of the switch body 1 about the hinge 8,
The horizontal part 6a of the fixed piece 6 and the protruding part 7a of the opening piece 7,
In particular, by holding the horizontal part of the flange part 3a of the bus duct case 3 between the hard rubber 12 and loosening the butterfly bolt 9, the opening piece 7 can be removed from the bus duct case 3.
It is constructed so that it can be rotated in the direction to release this grip.

Therefore, the bus duct case 3 of the switch body 1
To attach it to the front surface, first, with each opening piece 7 open, use the horizontal part 6a of each fixed piece 6 as an insertion guide, and bring the lower surface into contact with the upper surface of the flange parts 3a, 3a of the bus duct case 3, respectively. In this state, each butterfly bolt 9 is screwed together with a fixing nut 10 and tightened.
This removal is carried out by loosening each butterfly bolt 9 to unscrew it from the fixing nut 10, and by rotating each opening piece 7 in the direction of the bus duct case 3 to open it.

(Effects of the invention) The present invention has the above-mentioned structure, in which the support metal fittings are fixed to the switch body, and the bolts are not only prevented from falling, but also when butterfly bolts are used for the bolts, the butterfly bolts can be easily removed. Since it can be tightened and loosened by hand without the use of tools, safety can be ensured by preventing short circuits and ground faults caused by metal fittings, tools, etc. accidentally entering the plug-in hole. Furthermore, since it is not necessary to transport metal fittings, tools, etc., and the plug-in switch can be attached and detached manually, the number of man-hours required for attaching and detaching it can be significantly reduced.

Furthermore, by forming a horizontal part on the fixing piece and using this as an insertion guide part, this insertion can be done smoothly and in one motion, and it also prevents damage to clips etc. due to misalignment. There are various effects such as being able to prevent interference with equipment inside the bus duct.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is an enlarged view of the main part (an enlarged view of section A in FIG. 3), FIG. 2 is an overall perspective view, and FIG. 3 is a side view thereof. 1...Switch body, 3...Bath duct case, 5...Supporting metal fittings, 6...Fixing piece, 6a...
Same horizontal part (insertion guide part), 7... Same open piece, 8
... Hinge, 9 ... Butterfly bolt, 10 ... Fixing nut, 11 ... Fall prevention nut

Claims (1)

[Claims for Utility Model Registration] (1) A supporting metal fitting consisting of a fixed piece and an opening/closing piece is fixed to the back of the switch body, and a bolt is attached to either the fixed piece or the opening piece so that it cannot escape. A support structure for a plug-in switch, characterized in that a nut which can be freely screwed onto the bolt is fixed to the other end. (2) The plug-in switch according to claim 1, characterized in that the fixing piece of the support fitting projects toward the rear of the switch body to form a horizontal portion, and the horizontal portion serves as an insertion guide portion. Support structure.