JPH0468173B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a trolley wire power supply device that supplies power to an insulated trolley wire in an insulated trolley system that supplies electricity while moving to a hoist, crane, or the like.

[Background technology]

As shown in FIG. 7, the insulated trolley system moves a current collector 2 in contact with an insulated trolley wire 1, and supplies electricity from a lead wire 3 of the current collector 2 to a moving load. The insulated trolley wire 1 is
It is supported at its intermediate portion by a hanger 5 fixed to the building material 4, and both ends are tightened to the building material 4' via an end tightening insulator 6 with a tightening bolt 8 and a coil spring 9. The insulated trolley wire 1 is connected with a power supply device 11 having a connection function in the middle, and the power supply device 11
A power supply line 7 is connected to.

As shown in FIG. 8, the insulated trolley wire 1 is made by covering a plurality of rectangular conductors 12 with an insulating coating 13 and molding them simultaneously, and the lower surface of each conductor 12 is exposed from the coating 13. There is.

The power supply device 11 is connected as follows using a conductor joint 14 and a cover 15. Insulated trolley wire 1
peel off the covering 13 of the conductor 12 to expose the end of the conductor 12,
Bend the exposed part 90 degrees. The bent piece 1
2a' are overlapped, a ring-shaped conductor joint 14 is fitted, and the tip of the bent piece 12a' is further bent by 90°. Further, a fixing screw insertion hole is made in the tip bent piece 12b of the bent piece 12a' of one conductor 12, and the crimp terminal 16 to which the power supply line 7 is crimped is fixed to the conductor 12 with the fixing screw 17 and nut 18. Finally, the exposed conductor 12 is covered with a cover 15 to insulate it from the outside.

However, with this structure, it is necessary to provide fixing screw insertion holes in each conductor 12, which requires a lot of hole machining on site, resulting in poor workability. Moreover, since the fixing screw 17 and nut 18 are used to attach the crimp terminal 16, the nut 18 rotates together when tightening, resulting in poor workability.

[Purpose of the invention]

The present invention provides a trolley wire power supply device that does not require on-site hole drilling for attaching crimp terminals, shortens construction time, and eliminates the need for nuts to rotate together during tightening. be.

[Disclosure of the invention]

The trolley wire power supply device of the present invention has a generally U-shaped overall shape, has coaxial conductor insertion holes in the upper and lower pieces, has a conductor fixing screw screwed into the middle piece, and has an extending piece of the upper piece. a conductor joint having a screw hole for attaching a crimp terminal on the conductor joint; a crimp terminal having a screw insertion hole and crimped to a power supply line; and a crimp terminal inserted into the screw insertion hole of the crimp terminal for attaching the crimp terminal of the conductor joint. A fixing screw screwed into the screw hole is provided, and the conductor ends of a pair of insulated trolley wires are inserted into the conductor insertion hole in an overlapping state and fixed by the conductor fixing screw. It is something.

According to this configuration, since the conductor joint is provided with a screw hole for attaching a crimp terminal, there is no need to perform hole processing on the conductor for attaching a compression terminal on site, and the construction time is shortened. In addition, since the conductor joint has a screw hole for attaching a crimp terminal, a nut is required.
This eliminates the problem of nuts rotating together when tightening. Furthermore, the conductor joint has a simple structure in which the overall shape is substantially U-shaped and a conductor fixing screw is screwed thereon. Therefore, it can be manufactured at low cost. Furthermore, since the pair of insulated trolley wires are fixed in close contact with each other without intervening other members, the electrical conductivity is good.
Further, since the crimp terminal mounting screw holes are provided in the flat plate-like extension piece, they can be easily machined.

Embodiment An embodiment of the present invention is shown in FIGS. 1 to 6. In FIG. 1, reference numeral 20 denotes a separator that extends between the ends of a pair of insulated trolley wires 1;
1 is a conductor joint connecting each conductor 12, and 22 is a cover. Both insulated trolley wires 1 are coated with a coating 13 at a predetermined distance l from the end face, as shown in FIG.
The end portion of each conductor 12 is made to protrude from the coating 13 as shown in FIG. In addition, coating 13
A notch groove 24 is formed in the groove. The protruding portion of the conductor 12 is bent upward at a substantially right angle as shown in FIG. 2 to form a bent piece 12a. The bent pieces 12a of the conductors 12 of both insulated trolley wires 1 are passed through the conductor insertion holes 25 of the separator 20, overlapped with each other, and connected by a conductor joint 21 (FIG. 1).

The conductor joint 21 has a U-shaped joint body 27 with conductor insertion holes 26 coaxially bored in the upper and lower parts.
and a conductor fixing screw 28 screwed into the intermediate piece portion of the joint body 27. An extending piece 27a is provided on the upper piece, and a screw hole 32 for attaching a crimp terminal is formed in the extending piece 27a. conductor 12
Both bent pieces 12a are overlapped with each other in the joint body 27.
The conductor is inserted through the conductor insertion hole 26, and the conductor fixing screw 28 is tightened and fixed in the overlapping direction.

The power supply line 33 has a crimp terminal 34 crimped on the end thereof,
The fixing screw 36 inserted into the screw insertion hole 35 is
It is connected to the conductor joint 21 by screwing it into the crimp terminal mounting screw hole 32 of the conductor joint 21 . 3
7 is Watsusha.

The separator 20 is formed in a downward groove shape, has conductor insertion holes 25 at three locations on the upper surface, and has partition walls 29 projecting between these conductor insertion holes 25 . Engaging protrusions 3 that engage with the lower surface of the insulated trolley wire 1 are provided at the lower edges of both flanges 20a of the separator 20.
0 protrudes inward over the entire length. Further, below each conductor insertion hole 25, a block portion 31 is provided below each partition wall 29 and inside the flange 20a.
(FIG. 3) is formed, and a conductor support portion 38 on which the bent piece 12 of the conductor 12 is placed is formed on the upper surface of this block portion 31. Note that the partition wall 29 fits into the notch 24 of the insulated trolley wire 1.

The cover 22 covers the top surface of the separator 20 to house the conductor joint 21 and the like, and includes a top surface holding portion 2 that comes into contact with the top surface of the separator 20 in part.
2a, and a separator 2 on the lower edge of the front and rear walls.
A separator engaging protrusion 22b that engages with the lower surface of the separator 0 is provided. Moreover, on one side wall of the cover 22,
A feeder line insertion notch 22c is formed.

According to this configuration, since the conductor joint 21 is provided with the screw hole 32 for attaching the crimp terminal, the crimp terminal can be attached at the site.
There is no need to drill holes in the conductor for attaching 4, and the construction time is shortened. In addition, the conductor joint 21
Since a screw hole 32 for attaching a crimp terminal is provided in the
This eliminates the need for nuts and eliminates the problem of nuts rotating together when tightening.

Further, since the conductor 12 is bent at one point and connected by the conductor joint 21 having the conductor fixing screw 28, the number of man-hours required for bending the conductor 12 is reduced, and construction time can be shortened. Furthermore, since the number of bending steps is reduced, accuracy can be improved compared to the conventional method.

[Effects of the Invention] The trolley wire power supply device of the present invention does not require on-site hole drilling for attaching crimp terminals, shortens construction time, and eliminates the need for nuts, which prevents the nuts from co-rotating when tightening. there is no problem. Furthermore, the conductor joint has a simple structure in which the overall shape is substantially U-shaped and a conductor fixing screw is screwed thereon. Therefore, it can be manufactured at low cost. In addition, a pair of insulated trolley wires
Since they are fixed in close contact without intervening other members, they have good electrical conductivity. Furthermore, since the crimp terminal mounting screw holes are provided in the flat plate-like extension piece, they can be easily machined.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view of an embodiment of the present invention, FIG. 2 is a perspective view of its connection process, FIG. 3 is a cross-sectional view thereof, FIG. 4 is a longitudinal cross-sectional view thereof, and FIG.
The figure is a perspective view of the insulated trolley wire before the sheathing is cut off, FIG. 6 is a plan view of the insulated trolley wire after the sheathing is cut off, FIG. 7 is a perspective view of the insulated trolley system, and FIG. 8 is the conventional one. FIG. 9 is a perspective view of the connection device with the cover removed, and FIG. 9 is a perspective view of the connection device with the cover attached. 1... Insulated trolley wire, 12... Conductor, 12a
...Bent piece, 13... Cover, 20... Separator, 21... Conductor joint, 22... Cover, 26...
... Conductor insertion hole, 27 ... Joint body, 28 ... Conductor fixing screw, 29 ... Partition wall, 32 ... Screw hole for attaching crimp terminal, 33 ... Power supply line, 34 ... Crimp terminal,
35...screw insertion hole, 36...fixing screw.

Claims (1)

[Claims] 1 The overall shape is approximately U-shaped, with coaxial conductor insertion holes drilled in the upper and lower pieces, conductor fixing screws screwed into the middle piece, and screw holes for attaching crimp terminals in the extending piece of the upper piece. A conductor joint provided, a crimp terminal having a screw insertion hole and crimped to the power supply line, and a fixing device inserted into the screw insertion hole of the crimp terminal and screwed into the crimp terminal mounting screw hole of the conductor joint. What is claimed is: 1. A trolley wire power feeding device comprising a screw, wherein the conductor ends of a pair of insulated trolley wires are inserted into the conductor insertion hole in a state of being overlapped with each other and fixed with the conductor fixing screw.