JPH0885374A - Ear for double line interval - Google Patents

Abstract

PURPOSE: To keep the double line in an extremely simple manner and to the same height as the lower surface of a trolley line in a locally worn part of the trolley line. CONSTITUTION: A first holding part 3 to hold a separate trolley line 2 is joined to a second holding part 5 to hold a double line 4 in the transverse direction, a wedge screw 7 is arranged on the joining surface between the first holding part 3 and the second holding part 5, and the joining position of the first holding part 3 and the second holding part 5 is adjusted in the vertical direction by the wedge screw 7.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an arranging section ear used for arranging arranging wires at a local wear point of a trolley wire in a train line.

[0002]

2. Description of the Related Art When a trolley wire is locally worn out due to occurrence of a hard point or the like, an additional wire having a predetermined length is installed side by side with the trolley wire until the trolley wire is replaced. Prevents local wear from being accelerated.

The trolley wire and the additional wire are shown in FIG.
As shown in FIG. 3, they are connected and supported to each other by using ears 3a generally called double ears.

The ear 3a has an outer holding piece 4a having locking claws 21a and 21b, which engage with locking grooves formed on both upper sides of the trolley wire 1a and the additional wire 1b arranged side by side, respectively on the inner surface of the lower end. , 4b and locking claws 21a, 21b
And the central holding piece 5a having the engaging claws 21c and 21d facing each other on both sides of the end, respectively.
The bolts 7a are inserted into bolt holes 6a formed so as to communicate with b and 5a, and are connected by a nut 8a. The trolley wire 1a and the gripping portions 2a and 2b of the additional wire 1b are arranged side by side.

However, the double ear is mainly used for connecting the trolley wires to each other, and the trolley wires 1a and 1b having the same diameter are respectively attached to the gripping portions 2a and 2b provided in parallel with each other so that their lower surface positions are mutually opposite. It is supported from the beginning in a state where it is adjusted to have the same height.

Therefore, in order to hold the lower surface of the additional wire 1b at the same height as the lower surface of the locally worn trolley wire 1a, the additional wire having a residual diameter matched with the residual diameter of the trolley wire 1a. It is necessary to select 1b, and the selection work is extremely difficult, and a large number of kinds of additional wires 1b having a remaining diameter matching the remaining diameter of the trolley wire 1a are prepared. There is also the problem of having to keep it.

Therefore, for example, as shown in FIG. 9, the gripping portion 2a for gripping the trolley wire 1a and the gripping portion 2b for gripping the additional wire 1b are separated from each other and are joined laterally by the fixing bolts 3a. It is considered that the joining position with the portions 2a and 2b can be adjusted in the vertical direction.

However, the conventional gripping portions 2a, 2
The double ear with the joint position of b adjustable up and down has the trolley wire 1 with the fixing bolt 9a loosened at the time of installation.
a so that the lower surface of the lower wire 1b and the lower surface of the wire 2a are aligned with each other.
The upper and lower positions of a and 2b are adjusted, and the fixing bolt 9a is fastened again.

Therefore, there is a problem that the adjustment work is difficult and requires skill, and fine adjustment is difficult because the vertical positions of the two gripping portions 2a and 2b change stepwise.

[0010]

SUMMARY OF THE INVENTION The problem to be solved by the present invention is to hold an additional wire by adjusting the lower surface of the conventional trolley wire and the lower surface of the trolley wire to the same height at a locally worn portion. It is a point that the ear for the line section that can be used is difficult to perform the adjustment work and cannot be finely adjusted.

[0011]

According to the present invention, a first grip portion for gripping a trolley wire formed separately and a second grip portion for gripping an additional wire are laterally joined, and The joining position of the first gripping part and the second gripping part can be adjusted in the vertical direction, and it is very easy to add a wire at a locally worn portion of the trolley wire and a wire to the lower surface of the trolley wire. The purpose of holding the lower surface at the same height position is achieved.

[0012]

Operation: By rotating the wedge screw arranged on the joint surface between the first gripping portion for gripping the trolley wire and the second gripping portion for gripping the additional wire, the machine is moved in the horizontal direction to move the first gripping portion and the second gripping portion. The joint position with the grip portion is adjusted in the vertical direction so that the lower surface of the trolley wire and the lower surface of the additional wire are at the same height position.

[0013]

Embodiments of the present invention will now be described with reference to the drawings.

FIGS. 1 to 6 show an embodiment of the present invention, in which an ear 1 has a first grip portion 3 for gripping a trolley wire 2 and a second grip portion 5 for gripping an additional wire 4, and a first grip portion thereof. Arranged on a fixture 6 composed of a bolt 61 and a nut 62 for fixing the gripping part 3 and the second gripping part 5 to each other in a joined state, and the joint surfaces 31, 51 of the first gripping part 3 and the second gripping part 5. And the wedge screw 7 is formed.

The first grip portion 3 has locking claws 32, 3 which engage with locking groove upper parts 22, 22 formed on both upper sides of the trolley wire 2.
It is composed of sandwiching pieces 3A and 3B each having 2 at the lower end.

Insertion holes 33, 33 of the bolt 61 are formed at the center positions of the sandwiching pieces 3A, 3B, respectively, and projecting strips are fitted to the upper ends of the inner side surfaces 34, 34 of each other. And a projection 35 having a groove,
36 are formed respectively.

The second grip 5 is the first grip 3 described above.
The holding piece 5A, 5B has substantially the same structure as the above, and has locking claws 52, 52 engaging with the locking groove lines 42, 42 formed on both sides of the upper portion of the additional wire 4 at the lower ends, respectively. .

The holding pieces 5A, 5B are formed with insertion holes 53, 53 for the elliptical bolt 61 extending in the vertical direction at substantially the center positions thereof, and at the upper ends of the inner side surfaces 54, 54, respectively. Protrusions 55 and 56 each having a groove and a protrusion that fit into each other are formed.

Further, the wedge screw 7 arranged on the joint surfaces 31, 51 of the first grip portion 3 and the second grip portion 5 has a wedge portion 71 and a screw rod 72 fixed to the wedge portion 71 and extending in the horizontal direction. And a wing nut 73 screwed onto the screw rod 72.

In particular, in this embodiment, the wedge portion 71 has an acting surface 7 inclined on the upper surface so as to be lowered toward the screw rod 72.
Four.

A fitting concave portion 57 of the wedge portion 71 of the wedge member 7 is formed on the joint surface 51 of the second grip portion 5.

In the fitting recess 57, the upper wall surface 58 has a wedge portion 71.
Is formed on the inclined surface at the same angle as the working surface 74 of the.

Further, on the joint surface 31 of the first grip portion 3, the guide projection 7 is provided on the side surface of the wedge portion 71 of the wedge screw 7.
The sliding groove 37 of No. 5 is formed in the horizontal direction.

A side surface of the wedge portion 71 of the wedge screw 7 on the side of the second grip portion 5 and a guide projection 75 which is fitted into the sliding groove 59 provided on the side surface of the second grip member 5 are formed.

In this embodiment, for example, the bolt 61 holds the clamping piece 3
Insert A, 3B, 5A, 5B and washer 63 in this order,
The nut 62 is screwed into the threaded portion 64 at the tip thereof to fit the projections 35 and 36 of the first grip portion 3 into the locking claws 32, 32.
Is engaged with the locking groove ridges 21, 21 of the trolley wire 2, and the projections 55 and 56 of the second grip portion 5 are fitted so that the locking claws 52, 52 are engaged with the locking groove ridge 42 of the additional wire 4. , 42, and the nut 62 is screwed to fix the first grip portion 3 and the second grip portion 5 in a joined state (see FIG. 6).

At this time, for example, as shown in FIGS. 2 and 3, the wedge screw 7 is arranged between the joint surfaces 31 and 51 of the first grip portion 3 and the second grip portion 5.

More specifically, the wedge screw 7 is fitted into the fitting groove 57 formed in the second grip member 5 by fitting the guide projection 76 into the sliding groove 59, and further, the guide projection 75 is fitted into the sliding groove 37. The side surfaces 40, 6 of the joining pieces 3B and 5A.
The wing nut 73 is screwed on the tip of the screw rod 72 protruding from 0.

When the wing nut 73 is screwed in,
Since the wing nut 73 comes into contact with the side surfaces 40 and 60 of the joining pieces 3B and 5A, respectively, when the wing nut 73 is further tightened, the wedge screw 7 moves to the side surfaces 40 and 60, and the projection 5
The joining pieces 5A and 5B fixed to each other at 5, 56 move together, that is, as shown in FIGS. 4 and 5.

Accordingly, the joint height position between the first grip portion 3 and the second grip portion 5 is adjusted according to the degree of decrease of the additional wire 4 to be used, and then the nut 62 is further screwed to thereby add the additional wire 4. Since the lower surface 43 and the lower surface 23 of the trolley wire 2 can be located at the same height position, abrasion does not locally increase due to occurrence of a hard point or the like.

As described above, according to this embodiment, the trolley wire 2
Even if the degree of wear of the wire 4 does not match the degree of wear of the wire 4 to be used, the wire 4 is attached to the lower surface 43 and the lower surface 2 of the trolley wire 2.
It is easy to hold them so that they are at the same height position, and it is not necessary to prepare a large number of types of additional wires 4 having a remaining diameter that matches the remaining diameter of the trolley wire 2.

In particular, the vertical height can be adjusted simply by rotating the wing nut 73, so no skill is required, and the vertical adjustment can be performed continuously by the wedge screw 7. Fine adjustment is also possible.

Further, in this embodiment, the guide protrusion 74 of the wedge screw 7 is fitted in the sliding groove 37 formed on the joint surface 31 of the joint piece 3B, and in addition, another guide protrusion 75 of the joint piece 5A is formed. Since the first grip portion 3 and the second grip portion 5 are firmly fixed to each other because they are fitted in the fitting recesses 57 formed in the joint surface 51, both grip portions are also fixed by vibration or pushing up of the pan tab rough of the traveling vehicle. There is no concern that the joining positions of 3 and 5 will shift.

FIG. 7 shows a different embodiment of the present invention. The overall structure and operation and effect are almost the same as those of the above-mentioned embodiment, but the dropper suspended on the catenary line 8 by the first grip portion 3. A hanging portion 83 for inserting and locking the end portion of 82 is provided.

Therefore, since the ear 1 is suspended and supported by the catenary wire 8, it is possible to reliably prevent the occurrence of a hard point and to support the trolley wire 2 and the additional wire 4 while maintaining a constant height above the rail surface. It can be done.

It should be noted that the embodiment shown in FIG. 7 is an example, and the hanging portion 83 may have another conventionally known different structure.

[0036]

According to the present invention, even if the degree of wear of the trolley wire does not match the degree of wear of the additional wire to be used, the lower surface of the additional wire and the lower surface of the trolley wire are at the same height position. Can be held. Therefore, it is not necessary to prepare a large number of types of wire having a remaining diameter that matches the remaining diameter of the trolley wire, as well as the work of supporting the wire is simple.

Further, the whole structure is not complicated as compared with the conventional table ears, and it is excellent in terms of manufacturing and price, and there is no fear that it becomes heavy and causes a hardness point.

Further, the adjustment work is extremely simple by operating the wedge screw, and fine adjustment is possible because the adjustment of the vertical position changes steplessly.

[Brief description of drawings]

FIG. 1 is a perspective view showing an exploded state of an embodiment of the present invention.

FIG. 2 is a front view showing an assembled state of the embodiment shown in FIG.

3 is a cross-sectional view taken along the line III-III in FIG.

FIG. 4 is a front view showing the adjusted state of FIG.

5 is a cross-sectional view taken along the line VV of FIG.

FIG. 6 is a perspective view showing a usage state of the embodiment shown in FIG.

FIG. 7 is a perspective view showing another embodiment of the present invention.

FIG. 8 is a front view showing a conventional example.

FIG. 9 is a front view showing another conventional example.

[Explanation of symbols]

2, trolley wire 3, first grip portion 4, additional wire 5, second grip portion 7, wedge screw 31, joint surface 51, joint surface

 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hironori Goto 2-4-24 Shibata, Kita-ku, Osaka City, Osaka Prefecture West Japan Railway Company (72) Inventor Kazushi Okaya 2-chome, Shibata, Kita-ku, Osaka City, Osaka Prefecture 4-24 West Japan Railway Company (72) Inventor Takayuki Hirasawa 3-4 Omorikita, Ota-ku, Tokyo Suganuma Manufacturing Co., Ltd.

Claims (1)

[Claims] 1. A first gripping portion for gripping a trolley wire formed separately from each other and a second gripping portion for gripping an additional wire are laterally joined to each other, and the first gripping portion and the second gripping portion. A wedge screw is arranged on a joint surface with the grip portion, and the joint position between the first grip portion and the second grip portion can be adjusted in the vertical direction by the wedge screw, the ear for a line section.