JPH028486Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a support structure for an insulated contact wire.

When supporting an insulated contact wire, as shown in FIG. It is known to fix the upright portion a' of the bracket B' to the supporting hardware B' with a screw 5'.

However, in this support structure, it is necessary to provide an upright part a′ of the hanger metal fitting, and the metal fitting must be manufactured by casting or welding, which makes the hanger metal expensive and the upright part must protrude. Not only that, but the height of the hanger metal fitting increases accordingly, and the size of the hanger metal fitting becomes larger, which is disadvantageous.

An object of the present invention is to provide a support structure for an insulated contact wire that can reduce the size of the hanger fitting and facilitate its manufacture.

A hanger insulating member that connects both side pieces by a bridge piece is attached to an insulated contact wire, a hanger having vertical plate parts on both sides of the base plate part is attached to the hanger insulating member, and the base plate part of the hanger is attached to the hanger insulating member. In a support structure for an insulated contact wire that is fixed to a supporting hardware with bolts and nuts, a bolt insertion hole in the base plate portion of the hanger is provided with a rotation stopper for the bolt head, and a bridge piece of the hanger insulating member is provided with a rotation stopper for the bolt head. This structure is characterized by providing an upper intermediate piece facing the bolt head.

The present invention will be explained below with reference to the drawings.

FIG. 1 shows the components used in the present invention.

In FIG. 1, C indicates an insulated contact wire, 71 is a contact wire, and 72 is a plastic insulating cover. Locking grooves 721, 721 are provided at the upper ends of both sides of the insulating cover 72, and a locking groove 722 is provided on the upper surface of the insulating cover 72, respectively.

D indicates a hanger insulating member, in which both side pieces 81, 81 are joined by a bridge piece 82 in the middle. The bridge piece 82 is provided with a lower intermediate piece 821 and an upper intermediate piece 822. At the lower end of each side piece 81, 81, a locking groove 72 is provided on each side surface of the insulating cover 72 on the inner side.
The protrusions 810, 810 to be fitted to 1,721 are
The lower half of the outer surface of each side piece 81, 81 has a tapered surface 811, 8 in order to tightly fit a hanger to be described later.
11 is provided as necessary. On the other hand, at the upper end of each side piece 81, 81 there are notches 812, 812, 81 to facilitate the installation of a hanger, which will be described later.
2,812 are provided. Reference numerals 813, 813 are locking claws provided at the upper ends of central portions 814, 814 divided by cuts 812, 812, 812, 812, and are locked to hanger fittings to be described later. These claws 813, 813 are provided with tapered guide surfaces 815, 815 and 813, respectively, to facilitate the installation work of the above hanger metal fittings.
815.

A indicates a hanger, in which vertical plate parts 2, 2 are arranged in series on both sides of the base plate part 1, and a second plate is installed on the base plate part 1.
As shown in the figure, a bolt insertion hole 3 and a recess 4 are provided. The end of the recess facing the hole 3 functions as a rotation stopper for the bolt head, as will be described later.
Ribs a, a that wrap around the plate parts 2, 2 can also be formed at both ends of the base plate part 1, as shown in FIG. 41, 41 are notch holes provided at both shoulder corners, 42, 42, 42, 42 are plate parts 2, 2
The central portions 420, 420 separated by the cut slits are slightly curved outward.

Fig. 4 shows the support structure of the insulated contact wire according to the present invention, where C is the insulated contact wire, D is the hanger insulating member, A is the hanger, 5 is the bolt, and 50 is the hexagonal head of the bolt. , 6 represent a nut, and B represents a supporting hardware such as an arm hardware. For assembly, first attach the hanger insulating member D to the insulated contact wire C as shown in FIG. Next, the bolt 5 is inserted into the hanger A so that the bolt head 50 is housed inside the hanger A, and the hanger A is attached to the hanger insulating member D. In this case, as shown in FIG. 6, the hexagonal head 50 of the bolt is formed on the back side of the base plate part 1 of the hanger by the protrusions 4', 4 (formed corresponding to the recesses on the front side of the base plate part). As shown in FIG. 5, the upper intermediate piece 822 of the hanger insulating member D is sandwiched between the edges 40 and 40 and is held in place so as to prevent the bolt from escaping from that position (sandwiched between the protruding strip ends).
is functioning as a stopper. Therefore, the bolt 5 can be prevented from falling off.

When the intermediate assembly shown in FIG. 5 is completed, the shaft portion of the bolt 5 of the intermediate assembly is inserted into the bolt hole of the support hardware B shown in FIG. 4, and the nut 6 is tightened, thereby completing the work. During tightening of the nut 6, the head 50 of the bolt 5 is held between the edges 40, 40 of the recesses 4', 4' of the hanger by the upper intermediate piece 822 of the hanger insulating member D, as shown in FIG. Since the bolt is prevented from rotating, the nut can be tightened smoothly.

As described above, the insulated contact wire support structure according to the present invention has a structure in which the bolt head is housed in the hanger, and the bolt can be tightened smoothly. Therefore, as shown in Figure 7,
There is no need to provide an upright portion on the hanger, and the hanger can be made smaller accordingly, and the hanger can be easily manufactured by punching and pressing.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing the constituent members used in the present invention, Figs. 2 and 3 are explanatory diagrams each showing another example of the hanger in the member in Fig. 1, and Fig. 4 is an explanatory diagram showing an embodiment of the present invention. FIG. 5 is an explanatory diagram showing an intermediate assembly of another embodiment of the same, FIG. 6 is an explanatory diagram showing a bolt rotation stopper in an embodiment of the present invention,
FIG. 7 is an explanatory diagram showing a conventional example. In the figure, A is a hanger, B is a support hardware, C is an insulated contact wire, D is a hanger insulating member, 1 is a base plate part, 2 and 2 are vertical plate parts, 5 is a bolt, 50
is a bolt head, 6 is a nut, and 822 is an upper intermediate piece.

Claims (1)

[Scope of utility model registration request] A hanger insulating member that connects both side pieces by a bridge piece is attached to an insulated contact wire, a hanger having vertical plate parts on both sides of the base plate part is attached to the hanger insulating member, and the base plate part of the hanger is attached to the hanger insulating member. In a support structure for an insulated contact wire that is fixed to a supporting hardware with bolts and nuts, a bolt insertion hole in the base plate portion of the hanger is provided with a rotation stopper for the bolt head, and a bridge piece of the hanger insulating member is provided with a rotation stopper for the bolt head. A support structure for an insulated contact wire, characterized in that an upper intermediate piece facing the bolt head is provided.