JPH05310066A - Terminal feeding part cover for insulating trolley line - Google Patents

Abstract

PURPOSE:To provide a terminal feeding part cover for an insulating trolley line which can be attached easily, improve workability at installation and easily correspond disassembly and reassembly at maintenance. CONSTITUTION:This cover is constituted by a cover body 1 which is in the rectangular shape in general, has side walls in three directions with an opening formed on one side and has an insertion part for an insulating trolley line at one end and an insertion part of a lead wire for feeding on the other side, and an auxiliary cover 2 blocking the side opening of the cover body. A guide groove 16 is formed on the inner face of the cover body in the tapered state toward the side opening, and a guide projection 21 is provided on the auxiliary cover inserting into the cover body with guided by the guide groove. Holes 18 for locking are provided on both side walls of the cover body, an elastic piece 22 in the shape of a hook is provided entering from inside to the hole for locking and projections 11 to 13 are provided for positioning.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a terminal feeding portion of an insulated trolley wire, and more particularly to improvement of a cover in the terminal feeding portion.

[0002]

2. Description of the Related Art In general, a power supply portion for an insulated trolley wire is provided at a terminal. Needless to say, an insulating cover is peeled off to expose a conductor, and a power supply lead wire is electrically connected thereto. It was necessary to insulate the charged parts to eliminate the risk of electric shock.

In the case of a conventional insulated trolley wire, in particular, a multi-wire integrated type, it is as shown in FIG. That is, first, as shown in (a), the insulating cover is peeled off at the end of the multi-wire integrated trolley wire 31 and the parallel conductors are independently extended one by one. Sleeve 32 having
To connect the relay conductor 35 with the crimp terminal 34 attached to the power supply lead wire 36 with the screw 33 to achieve a predetermined power supply connection, and insert the power supply lead wire 36 in advance. Heat-shrinkable tube 37
Cover the charging part of the power supply connection part, and then use a heating device 38 such as a dryer to attach the tube 37 to the tube 37.
Was heat-shrinked to form an insulative insulating coating. These operations were individually required for each of the multiple conductors.

[0004]

As described above, in the method using the heat-shrinkable tube, the tube is covered over the uneven power supply connection portion while being expanded, and further, it is roasted with a heating device. It was time consuming and troublesome. In particular, the work may be performed on the insulated trolley wire installed at a high place where there is no scaffolding at the work site for installing the insulated trolley wire.In that case, if a dryer is used for the heating equipment, a dedicated power supply is required. In addition to the above, the power cord could not be extended to the processing location, and an extension cord was required, which was a more troublesome task.

Further, the heat-shrinkable tube does not return to its original shape once it is shrunk, and the tube must be peeled and removed at the time of maintenance and inspection, and a new heat-shrinkable tube must be prepared after the inspection. It had to be processed anew.

In order to solve the above-mentioned problems of the prior art, the present invention is an insulating trolley that is easy to install, can improve workability during construction, and can be easily disassembled and reproduced during maintenance and inspection. The purpose of the present invention is to provide a wire terminal power supply unit cover.

[0007]

[Means for Solving the Problems] Means for solving the above-mentioned problems are as follows. The whole is made rectangular and has side walls surrounding three sides, and an opening is formed at one side, and one end side is an insulated trolley wire. Of the cover body with the other end side being the insertion portion of the power supply lead wire, and an auxiliary cover that closes the side opening of the cover body, and gradually extends toward the side opening on the inner surface of the cover body. A diverging guide groove is formed, and one of the auxiliary covers is provided with a guide protrusion which is guided by the guide groove and enters the cover body.

The guide protrusion may be extended so as to abut on a connecting member attached to the end of the insulated trolley wire.

Another means for solving the above-mentioned problems is to make the whole rectangular and have side walls surrounding three sides to form an opening at one side and insert an insulated trolley wire at one end side. Part and also the cover body having the other end side as the insertion portion of the power supply lead wire, and an auxiliary cover that closes the side opening of the cover body, and has locking holes on both side walls of the cover body. One of the auxiliary covers is provided with a hook-shaped elastic piece that is fitted into the locking hole from the inside.

Further, another means for solving the above-mentioned problems is to make the whole rectangular and have side walls surrounding three sides to form an opening at one side and insert an insulated trolley wire at one end side. The first end of the sleeve for connecting the conductor end of the insulated trolley wire and the relay conductor to the insulated trolley wire side facing the insulated trolley wire in the cover body having the other end side as the insertion portion of the power supply lead wire. And a second positioning piece that is engaged with the fastening screw between the relay conductor and the crimp terminal with the power supply lead wire from the power supply lead wire side.

The cover body may further have a protrusion for horizontally holding the sleeve and the crimp terminal.

[0012]

1 to 4 show a preferred embodiment of a terminal feeding portion cover for an insulated trolley wire according to the present invention, FIG. 1 shows an assembled state of the cover, and FIG. 2 is attached to an insulated trolley wire. 3 shows the cover main body, and FIG. 4 shows the auxiliary cover.

As shown clearly in FIG. 3, the cover body 1 is a molded body made of an insulating material such as engineering plastic and has a rectangular shape as a whole, and includes an upper side wall 10 and left and right side walls 17, 17. The outer shell is formed by surrounding the three sides and opening the lower side.

One end wall (right side) has a notch 19 for inserting the insulated trolley wire 31 while leaving a part of the wall 14, and the other end wall (left side) has a part of the wall. There is a notch 20 for passing the power supply lead wire 36 leaving 15.

On the inner surface of the cover body 1,
There are several protrusions 11 to 13 projecting from the inner surface of the upper side wall 10 toward the opening, 11 serves to hold the sleeve 32 horizontal as described later, and 12 and 13 serve to prevent the power supply part from coming off. Be done. Further, on the left and right side walls 17, 17, a guide groove 16 is formed which gradually widens toward the opening side on the inner surface of the central portion, and holes 18 for locking are formed at the front and rear ends.

On the other hand, the auxiliary cover 2 is a molded body made of an insulating material similar to that of the cover body 1 as shown in FIG. There is a portion 25, and a guide protrusion 21 projects in the upright state at the center, and hook-shaped locking pieces 22 are formed upright on the front and back of the left and right side edges. Furthermore, there are shallow notches 23 on the left and right side edges, which are used to pry the driver as described later.

Now, the cover of this embodiment in which the respective parts are constructed as described above is assembled as shown in FIG. That is, when the auxiliary cover 2 closes the side opening of the cover main body 1, the side edge of the guide protrusion 21 enters from the portion of the guide groove 16 that widens toward the end, and the upper end is centered at the narrowest portion of the groove. The front-rear positional relationship is correctly regulated. Therefore, the auxiliary cover 2 can be set in the correct position in the end even if it is mounted roughly to some extent, and the assembling can be performed easily.

Further, along with the above assembling operation, the locking piece 22 of the auxiliary cover 2 is moved to the left and right side walls 17 of the cover body 1,
Slide in on the inner surface of 17 and lock hole 1
8 and the auxiliary cover 2 is prevented from falling off.

Further, when the above-described series of positioning and locking are performed, the rising pieces 25, 25 on the front and rear of the auxiliary cover 2 are formed.
Covers the opening sides of the notches 19 and 20 of the cover body 1 to form a hole.

In the assembled state of FIG. 1, the auxiliary cover 2 can be easily removed by inserting the tip of the driver into the shallow notch 23 and twisting the driver. Of course, it can also be removed by pushing the claw of the locking projection 22 into the locking hole 18.

The protrusions 11 to 13 and 21 provided on the cover main body 1 and the auxiliary cover 2 work effectively for the power supply connection part to be put in the empty space between them. This point will be described below.

First, as shown in FIG. 2 and FIG. 3, the power supply connecting portion has a relay conductor 35 at the conductor terminal 40 exposed by peeling off the insulating cover at the end of the insulated trolley wire 31.
And are electrically and mechanically coupled by a sleeve 32 having a screw 39. The crimp terminal 34 crimp-connected to the end of the power supply lead wire 36 is tightened and fixed to the relay conductor 35 with the screw 33, so that the electrically connected trolley wire conductor 40 and the lead wire 36 are electrically connected. ing.

As shown in FIG. 2, the cover main body 1 takes in the power supply connecting portion from the side opening, and the portion of the insulating trolley wire 31 covered with the insulating cover passes through one of the notches 19 and the other one. The lead wire 36 is set so as to pass through the notch 20. As a result, the protrusion 11 contacts the spine of the sleeve 32 and holds the sleeve 32 horizontally. Further, the projection 13 works to lock the end surface of the sleeve 32 facing the insulated trolley wire 31 side, and the projection 12 works to lock the screw 33 from the lead wire 36 side. Is prevented from moving in the longitudinal direction.

The cover body 1 mounted as described above
When the auxiliary cover 2 is combined with the auxiliary cover 2 as described above, the upper end of the guide protrusion 21 is located below the relay conductor 35 (the protrusions 11 to 13).
From the opposite side), so that the projections 11 and 12 and the guide projection 21 sandwich the power supply connection portion, and the careless rattling of the cover is suppressed.

The insulated trolley wire 31 shown in this embodiment is used.
Is a multi-wire integrated type, and the cover of this embodiment is attached to each conductor. In that case, the end of the insulating cover of the insulated trolley wire should be devised so that the portion surrounding the conductor 40 is cut off and the portion connecting the conductors is cut off so that the portion surrounding the conductor easily enters the notch 19 of the cover body 1. good.

[0026]

As described above, according to the insulated trolley wire terminal power feeding section cover of the present invention, the cover body into which the power feeding connecting portion can be taken in from the side and the side opening of the cover body are closed. Since it consists of an auxiliary cover, a series of assembling and installation work for the power supply connection can be simplified, and since the auxiliary cover can be attached to the cover body while being guided by the first means, the combination is very easy. Further, when the auxiliary cover is locked by the second means, the locking of the auxiliary cover with respect to the cover body can be achieved incidentally as with the combination, and further, by the third means, the cover body with respect to the power supply connecting portion is achieved. Positioning and longitudinal retention are accomplished in the same way as assembly,
As a result, it can be mounted with one touch, and further workability can be improved.

Further, in the cover of the present invention, the auxiliary cover can be easily removed, and the maintenance and inspection of the power supply connecting portion can be facilitated. After the inspection, the cover mounting state can be reproduced only by assembling the auxiliary cover.

[Brief description of drawings]

FIG. 1 shows an embodiment of an insulated trolley wire terminal power supply section cover according to the present invention, (a) being a front view, (b) being a bottom view,
(C) is a right side view, (D) is a left side view.

FIG. 2 shows the cover of the above embodiment in a mounted state,
(A) is a front view, (B) is a left side view, (C) is a right side view, and (D) is an A-A sectional view of (A).

3A and 3B show a cover main body of the above embodiment, wherein (A) is a front view, (B) is a bottom view, (C) is a right side view, and (D) is a left side view.

4A and 4B show an auxiliary cover of the above embodiment, in which FIG. 4A is a front view, FIG. 4B is a right side view, and FIG.

FIG. 5 is a perspective view showing a state of insulation treatment in a conventional insulated trolley wire terminal power supply unit, and (a) is a perspective view showing the treatment process;
(B) is a perspective view showing a processing completed state.

[Explanation of symbols]

 1 Cover Main Body 2 Auxiliary Cover 10 Side Wall (Upper Side) 11, 12, 13 Protrusions 14, 15 End Wall 16 Guide Groove 17 Side Wall (Left and Right) 18 Locking Hole 19 Notch (Insulating Trolley Wire Side) 20 Notch (Lead) Wire side) 21 Guide protrusion 22 Elastic piece for locking 23 Shallow notch (for prying screwdriver) 25 Standing piece 31 Insulating trolley wire 32 Sleeve 33 Screw 34 Crimping terminal 39 Screw 40 Power supply lead wire

Claims (5)

[Claims] Claim: What is claimed is: 1. An entire rectangular shape having side walls surrounding three sides to form an opening on one side, one end side being an insertion portion of an insulated trolley wire, and the other end side being a power supply lead wire. It consists of a cover body that is an insertion part and an auxiliary cover that closes the side opening of the cover body, and a guide groove that gradually widens toward the side opening is formed on the inner surface of the cover body. A terminal feeding portion cover for an insulated trolley wire, comprising a guide protrusion that is guided by the guide groove and is inserted into the cover body. 2. The guide protrusion is extended so as to abut a connecting member attached to the end of the insulated trolley wire.
The listed cover. 3. An entire rectangular shape having side walls surrounding three sides to form an opening on one side, and one end side of the insulated trolley wire insertion part and the other end side of the power supply lead wire. It consists of a cover main body that is an insertion part and an auxiliary cover that closes the side opening of the cover main body, has locking holes on both side walls of the cover main body, and one of the auxiliary covers has the locking hole. A terminal feeding portion cover for an insulated trolley wire, characterized in that a hook-shaped elastic piece fitted in from the inside is provided on the inside. 4. An overall rectangular shape having side walls surrounding three sides to form an opening on one side, one end side of which is an insertion portion of an insulated trolley wire, and the other end side of which is a power supply lead wire. A first positioning piece that is locked to the end face of the sleeve that connects the conductor end of the insulated trolley wire and the relay conductor facing the insulated trolley wire side in the cover body that is the insertion portion, the relay conductor and the power supply lead wire. A terminal feeding part cover for an insulated trolley wire, comprising: a second positioning piece that is fastened to a fastening screw with an incidental crimp terminal from a power feeding lead wire side. 5. The cover according to claim 4, further comprising a protrusion for horizontally holding the sleeve and the crimp terminal in the cover body.