JPS6039284Y2 - Tension type insulation trolley - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a tension type insulated trolley.

A conventional tension type insulated trolley uses a hanger 2 to connect an insulated trolley wire 3 to a bracket 1 installed as shown in FIG.
One end of the insulated trolley wire 3 is attached, the other end of the insulated trolley wire 3 is fixed to a tensioning member 4, and a threaded rod 5, which is fixed through the upper part of the tensioning member 4, is passed through a pre-installed bracket 6.
By fitting the compression coil spring 7 onto the threaded rod 5, screwing the nut 8, and tightening the nut 8, the compression coil spring 7 is compressed, and its urging force moves the threaded rod 5 to the right in FIG. The tensioning member 4 is also moved in the same direction to tighten the insulated trolley wire 3.

On the other hand, a collector 9 is slidably attached to the insulated trolley wire 3, and a power supply line 10 is electrically connected to the conductor of the insulated trolley wire 3 within the tightening member 4, so that the power supply line 10 → the conductor of the insulated trolley wire 3 A power supply path to a device (not shown) such as a collector 9-crane is configured.

However, the attachment of the insulated trolley wire 3 to the tension member 4 is
This was done by fixing to an end fitting (not shown) with a set screw, which required screw tightening work, which had the disadvantage of poor workability.

Therefore, an object of this invention is to provide a tension type insulated trolley whose end portion of the insulated trolley wire can be easily attached to a tightening means.

An embodiment of this invention will be described with reference to FIGS. 3 to 5.

That is, the feature of this tension type insulated trolley is that a terminal plate 12 is inserted into the tension member 11 and the insulated trolley wire 3 is fixed to this terminal plate 12 with a pin 16.

Specifically, as shown in FIG. 4, the tightening member 11 has a recess 11a on one side into which the insulated trolley wire 3 is inserted.
At the same time, a terminal board insertion recess 11b is formed at the center of the lower surface, which is wider than the recess 11a and communicates with the recess 11a, and as shown in FIG. In addition to providing a case engaging recess 11C, a pair of washer receiving protrusions 11d are also formed at the lower corners of the insertion recess 11b, and a recess 1 is provided on the other side.
A screw hole 11e for mounting the threaded rod 5 is formed on the horizontal extension line of 1a.

The insulated trolley wire 3 has an I-shaped conductor 3b buried in a concave portion of a substantially inverted U-shaped insulator 3a, and one end of the ■-shaped conductor 3b protrudes from the end of the insulator 3a.

The terminal plate 12 is J-shaped, with a feeding line connecting pin 13 disposed in the center of its long piece 12a, and a ■-shaped conductor 3bG of the insulated trolley wire 3 inserted into the upper folded portion 12b.

The cover 14 has a box shape, and has a pair of protrusions 14b projecting from the upper ends of both opposing pieces 14a that elastically engage with the recesses 11c of the tightening member 11. A notch 14d is formed to increase the elastic force of the piece 14a, and a feeder insertion hole 14e is further provided at the bottom.

The assembly of this structure consists of inserting the insulator 3a of the insulated trolley wire 3 into the recess 11a of the tightening member 11, and
The shaped conductor 3b is placed in the terminal plate insertion recess 11b, and the washer 15
The I-shaped conductor 3b is passed through the inside, and the washer 15 is inserted into the protrusion 1.
1d, and the I-shaped conductor 3b of the insulated trolley wire 3 is inserted into the folded part 12b of the terminal board 12, and both are penetrated by the pin 16. Fixed waist thus the inner peripheral end surface 1 of the washer 15
By locking to 1f, the insulated trolley wire 3 is prevented from coming off in the axial direction, and by locking to the protrusion 11d of the washer 15, the terminal plate 12 and the insulated trolley wire 3 are prevented from falling off from the tightening member 11. do.

The cover 14 is constructed by connecting one end of the feeder line 10 in FIG. 3 to the terminal plate 12 through the feeder line insertion hole 14e in FIG. 4 with a pin 13, and then press-fitting the cover 14 into the terminal plate insertion recess 11b from below. , is attached to the tightening member 11 by elastically coupling the convex portion 14b to the concave portion 11c.

In this way, a power supply path is formed from the power supply line 10 to the ■-shaped conductor 3b of the insulated trolley wire 3 via the terminal plate 12.

The threaded rod 5 has one end inserted into the mounting screw hole 1 of the tightening member 11.
1e, the other end of the threaded rod 5 is passed through the screw insertion hole 6a of the pre-installed bracket 6, and the compression coil spring 7 is sheathed from the other end of the threaded rod 5 to the circumferential body of the threaded rod 5, and the washer 17 is inserted. Screw together nut 8.

In this way, all assembly is completed.

Thus, according to this bark, the recess 1 in the tightening member 11
1a, a terminal board insertion recess 11b, and a washer receiving protrusion 11d.
The terminal board 12 is J-shaped and the pin 16 is insulated.
Since the structure is such that the 1J-wire 3 is stopped, the tightening member 11 and the insulation
'Connection with J-line 3 can be performed.

Therefore, the work of connecting the end of the insulated soldered wire 3 to the tightening means is easier than in the conventional method in which screws are tightened.

Further, according to this configuration, by tightening the nut 8, the compression coil spring 7 is compressed, and the biasing force is used to move the threaded rod 5 to the right in FIG. The insulated trolley wire 3 can be tightened by moving it in this direction.

In that case, the center of the threaded rod 5 and the center of the insulated trolley wire 3 are positioned and held on the same straight line by the tightening member 11, so the direction of the tensile force of the threaded rod 5 coincides with the axial direction of the insulated trolley wire 3, and therefore Curving deformation of the end of the insulated wire 3 can be prevented.

That is, in the conventional example shown in FIG. 1, there is a deviation of the dimension t between the center of the insulated trolley wire 3 and the center of the threaded rod 5, so the nut 8 is tightened to remove the insulated trolley wire 3.
When tightened, the insulated trolley wire 3 is tightened as shown in Figure 2.
The end portion of is curved and deformed by a dimension d.

However, with this embodiment, such curved deformation can be prevented.

As described above, the tension type insulated trolley of this invention has a structure in which the tensioning member is provided with a recess, a terminal plate insertion recess, and a washer receiving protrusion, and the terminal plate is J-shaped and the insulated trolley wire is fixed with a pin. The tightening member and the insulated OI wire can be connected by simply carrying out the fitting operation sequentially as described above.

Therefore, compared to the conventional method in which screws are tightened, the work of connecting the end of the insulated trolley wire to the tightening means is simpler.

[Brief explanation of the drawing]

Fig. 1 is a side view of the conventional example, Fig. 2 is a side view for explaining the runner-up of the conventional example, Fig. 3 is a perspective view of an embodiment of the invention, Fig. 4 is a sectional view thereof, and Fig. 4 is a sectional view thereof. FIG. 5 is a sectional view taken along the line ■-v. 3... Insulated trolley wire, 5... Threaded rod, 6... Bracket, 7... Compression coil spring, 8... Nut, 10...Power supply line, 11...Tightening member, lla...Recess, llb...Terminal board insertion recess, lld...
...Protrusion for washer receiving, 12...Terminal plate, 15.
...Washer, 1 6...Pin.

Claims (1)

[Scope of utility model registration request] It has an insulated trolley wire held at one end, a recessed part on one side into which the other end of the insulated trolley IJ-wire is inserted, and a terminal board insertion recessed part communicating with this recessed part and wider than this recessed part. A tightening member having a washer receiving protrusion formed on the communication side end in the terminal board insertion recess, and a tightening member having a J-shaped bent shape, the folded part of which is inserted into the terminal board insertion recess, and the A terminal board into which a conductor of an insulated trolley wire is inserted, a pin that passes through this terminal board and the conductor, and a pin that is fitted onto the conductor between the terminal board and the communication side end surface of the terminal board insertion recess and the washer. A tension type insulated trolley wire, comprising: a washer received in a receiving protrusion; and a tightening means for connecting the tightening member to a bracket and applying a tensile force to the tightening member in the tightening direction of the insulated trolley wire.