JPS63240308A - Wiring duct hanger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to a hanger for a wiring duct.

[Background technology]

For example, a wiring duct is supported by a hanger attached to a hanging bolt hanging from the ceiling.

As shown in FIG. 5, the conventional hanger has a fixed side frame 20.
and a movable side frame 21. The fixed side frame 20 is attached to a hanging bolt 22, and the movable side frame 21 is attached to the fixed side frame 20 via a hinge 23 so that it can be opened and closed. The side frames 20, 21 are tightened together by horizontal tightening bolts 24 to hold the duct 25 from both sides. At the lower ends of both side frames 20 and 21, locking protrusions projecting inwardly are adapted to hold the duct 25 from below.

However, with such a hanger, it is necessary to hold the duct 25 on the fixed side frame 20 with one hand and screw in the tightening bolt 22 with the other hand to tighten the movable side frame 21. There is an inconvenience that the construction must be carried out in advance.

[Purpose of the invention]

In view of the above circumstances, an object of the present invention is to provide a hanger for a wiring duct that can improve the efficiency of construction.

[Disclosure of the invention]

In order to achieve the above object, the present invention includes two U-shaped frames having a bottom plate portion and side plate portions protruding in opposite directions from both sides of the bottom plate portion. While facing each other, bend both side plates of the other frame inward to the hook shaft that spans both side plates of one frame, and fit the fitting groove of the hook formed at the end of the frame. For wiring that is connected by fitting together, and the fitted state is maintained by the top of the hook portion abutting against a retaining portion protruding from the inner surface of the side plate portion of the one frame. The gist is the duct hanger.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 shows an embodiment of a hanger for a wiring duct according to the present invention as viewed from an angle. 1 and 2(a) to C1 are views of the details of this embodiment as seen from the front and left and right sides. As shown in these figures, the wiring duct hanger A of the present invention consists of two members, an upper frame 1 and a lower frame 2.

The upper frame 1 is a U-shaped frame body including a bottom plate part 3 and a pair of left and right side plate parts 4.4 protruding from both sides of the bottom plate part 3 in an opposing manner.

A bolt through hole 5 is formed in the center of the bottom plate portion 3, and the lower end of a hanging bolt (hanging metal fitting) 6 from the ceiling is inserted into this bolt through hole 5 and tightened with a nut 7. ing.

The pair of side plate parts 4, 4 are formed by being bent downward at right angles from both ends of the bottom plate part 3. Both side plate parts 4,
4 has a retaining portion 8, 8 having a base at the upper end.
are formed in a cut and raised shape, and the lower end surface of the stopper portion 8 of each of these plates is an arcuate retaining surface 8a. A hook shaft 9 in the form of a round bar is horizontally caulked and provided between the lower portions of the side plate portions 4, 4.

The lower frame 2 is a U-shaped frame body including a bottom plate part 10 and a pair of left and right side plate parts 11.11 protruding from both sides of the bottom plate part 10 in an opposing manner.

The bottom plate part 10 is a part that holds the wiring duct B from below, and both side plate parts 11 and 11 are integrally provided so as to rise vertically from both ends of the bottom plate part 10.

Each side plate portion 11.11 has a holding piece 1 cut and raised in a dogleg shape and arranged so that the doglegged protrusion faces inward.
2.12 are integrally provided. The holding piece 12 has its lower end set as a free end, so that it can be pressed against each side wall surface 13° 13 of the wiring duct B to hold the duct B by elastic force.

A hook portion 15 is provided at the upper end of each side plate portion 11.11.
．． 15 are integrally formed. This hook part 15
is provided with a fitting groove, and the hooking shaft 9 is fitted into a shaft fitting part 16a formed at the back of the fitting groove 16. The upper end surface of the hook portion 15 is an arc-shaped sliding surface 15a. The sliding surface 15a is formed by an arc centered on the center point of the shaft fitting part 16a, and the sliding surface 15a and the retaining surface 8a are formed by arcs having the same radius so that they coincide with each other. There is.

Figure 3 shows how hanger A is assembled.

As shown in the figure, the hanging bolt 6 hanging downward is
The upper frame 1 is passed through a bolt through hole 5 of the upper frame 1, and the upper frame 1 is attached to the suspension bolt 6 by tightening a nut 7 from below.

A wiring duct B is passed through the lower frame 2, and the lower wall surface 14 of the duct B rests on the bottom plate part 10 of the lower frame 2, and the side wall surfaces 13 and 13 of the duct B are pressed down. It is held from the left and right sides by the pieces 12 and 12 so that it cannot easily slip out upwards.

The lower frame 2 that has passed through the wiring duct 1-B is lifted toward the upper frame 1 with the hook portions 15.15 facing upward.

FIGS. 4A and 4B show how the lower frame 2 lifted up in this way is about to fit into the upper frame 1.

As shown in these figures, first, the lower frame 2 is attached to both side panels 1.
1.11 from the lateral outer side toward the inner direction P with one hand, make sure that the entrance of the fitting groove 16 corresponds to the axis of the hook shaft 9, and that the outer side of the hook portion 15 is Operate so that the side surface fits into the inner surface of the retaining portion 8.8. Next, when the lower frame 2 is pushed in the S direction, which is the direction of the upper frame L, the hook portions 15.15 are pushed into the retaining portions 8.
．． 8 , and the fitting groove 16 fits into the hook shaft 9 .

When the lower frame 2 is pushed down when the fitting groove 16 is fully fitted with the hook shaft 9, the hook shaft 9 is fitted into the shaft fitting part 16a located at the back of the fitting groove 16, and at the same time, the hook The hook part 15 rides over the retaining part 8, and the sliding surface 15a at the upper end thereof matches the engagement receiving surface 8a of the retaining part 8.

Thereby, as shown in FIGS. 1 and 2, the lower frame 2 is assembled with enough room to swing back and forth due to the relative sliding between the sliding surface 15a and the engagement receiving surface 8a. At the same time, since the hook portion 15 engages with the stopper portion 8, there is no fear that the lower frame 2 will slip out upward.

With traditional hangers, once attached to the hanging bolt,
Since the orientation of the latching protrusion at the lower end is determined automatically, if the latching protrusion is not horizontal, the duct will not rest on the latching protrusion in parallel. Therefore, additional work was required, such as correcting the hanger's posture, which was one of the factors that hindered construction efficiency.

On the other hand, in the hanger of this embodiment, as described above, the top of the hook portion 15 is a sliding surface 15a, and the retaining receiving surface 8a that receives it is arranged to match the sliding surface 15a. As a result, the lower frame 2 can swing while being prevented from falling off with respect to the upper frame 1, and no matter what the fixed posture of the upper frame 1 is, the lower frame 2 It is possible to change the posture of only the wiring duct B to make it compatible with the wiring duct B, and the efficiency of construction can be improved.

As described above, according to the wiring duct hanger A of the present invention, the lower frame 2 can be assembled to the upper frame 1 with one hand, making construction extremely easy. Moreover, the lower frame 2 is prevented from coming off by the hook part 15 riding over and engaging with the retaining part 8, so even if the wiring duct B vibrates, the lower frame 2 can be removed from the upper frame 1. This does not occur, and safety against falling rings is ensured.Up to now, this invention has been explained only based on the embodiments shown in the figures above. The examples are not limited.

For example, in the embodiment shown in the figures above, the upper frame 1 is provided with the hook shaft 9, and the lower frame 2 is provided with the hook portion 15, but this may be reversed.

Further, in the above embodiment, the upper frame 1 and the lower frame 2 can change their positions, but the positions may not be changed.

In short, it has two U-shaped frames having a bottom plate part and side plate parts protruding from both sides of the bottom plate part in an opposing manner. The frame is connected by bending both side plate portions of the other frame inwardly and fitting the fitting grooves of the hook portion formed at the ends thereof to the hook shaft extending over the both side plate portions of the other frame, and Catch] If the liquid-filled state is maintained by the top of the hook portion abutting against the retaining portion protruding from the inner surface of the side plate portion of the one frame, other configurations are not particularly required. It is not limited.

〔Effect of the invention〕

As described above, the wiring duct hanger of the present invention includes two U-shaped frames having a bottom plate portion and side plate portions protruding from both sides of the bottom plate portion in an opposing manner. , with the openings facing each other, the hooks formed at the ends of the hooks by bending both sides of the other frame inward around the hook shafts stretched across both side plates of one frame. They are connected by fitting the fitting grooves together, and the fitted state is maintained by the top of the hook portion abutting against a retaining portion protruding from the inner surface of the side plate portion of the one frame. This makes it possible to streamline construction.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of a wiring duct hanger according to the present invention, Fig. 2(a) is a front view of this embodiment, and Fig. 2(a) is a front view of this embodiment. TC) is a left side view, Figure 3 is a perspective view showing how the lower frame through the wiring duct is guided to be assembled on the upper Azusa side, and Figure 4 is
The figures show how it is assembled; Figure (a) is a front view thereof, Figure (b) is a right side view thereof, and Figure 5 is a perspective view of an example of a conventional hanger. A... Wiring duct hanger 1... Upper frame 2.
...Lower frame 3.10...Bottom plate part 4,11...Side plate part 8...Keeping part 9...Hooking shaft 15...
Hook part 16... Fitting groove 16a... Shaft fitting part agent Patent attorney Takehiko Matsumoto Figure 1 Figure 31! !

Claims (2)

[Claims] (1) Two U-shaped frames having a bottom plate portion and side plate portions protruding in opposite directions from both sides of the bottom plate portion are provided. It is connected to a hook shaft that spans both side plate portions of the frame by bending both side plate portions of the other frame inward and fitting a fitting groove of a hook portion formed at the end thereof, and A hanger for a wiring duct, wherein the fitted state is maintained by the top of the hook portion abutting against a retaining portion protruding from the inner surface of the side plate portion of the one frame. (2) A hanger for a wiring duct according to claim 1, wherein the top end surface of the hook portion is an arc-shaped sliding surface centered at the depth of the fitting groove of the hook portion.