JPH0415135B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a power feeding part of an insulated trolley used in power feeding equipment when a load is moved, and in particular to a power feeding part of an insulated trolley suitable for a large capacity power feeding equipment. Regarding the department.

[Prior art/problems to be solved by the invention] Conventionally, in order to provide a power feeding part in an insulated trolley used for power feeding equipment when a load is moved,
As shown in FIG. 3, the insulating cover of the insulating trolley 9 is removed and the feed clamps 4 and 5 are fastened to the exposed conductors 8, and the exposed parts of these conductors 8 and the feed in clamps 4 and 5 are connected. It was covered with feed-in cover 17. Note that 14 is a cable terminal attached to an extension of one side 5 of the feed ink clamp.

The feed-in cover 17 is made by combining a pair of cover pieces made of a molded product of an insulating material and having a substantially L-shaped cross section into a substantially U-shaped cross section, and connecting them with bolts and nuts at the joint, and the edges on both sides are connected to the conductor 8. By extending in parallel from both sides of the collector contact surface, it forms a collector travel guide similar to an insulating cover, and from the both side edges to the bend side of the U-shaped cross section surrounds the feed ink clamp and cable terminal. Therefore, it is expanded in the width direction.

By the way, if the size of the insulating trolley is increased to accommodate large-capacity power supply equipment, the size of the feed ink lamp, cable terminal, and even cable will inevitably be increased, and accordingly, the size of the feed cover will also be increased.

However, if the feed-in cover (cover piece) is enlarged as described above, the wall thickness must be increased in order to obtain the specified strength, but if the wall thickness is increased in this way, it may deform during molding. It was difficult to finish it to the specified dimensions due to the discoloration. If the dimensions are not as specified, especially if the side edges of the cover that serve as current collector guides are distorted, this can cause problems such as unstable running of the current collector and deterioration of current collection characteristics. It becomes derivative and becomes impractical.

In addition, large molded products such as those mentioned above,
The manufacturing cost increased due to the increased size of the mold, making the product expensive.

In view of the problems of the prior art described above, the present invention has been made to
It is an object of the present invention to provide a power supply section for an insulated trolley, which allows a predetermined cover to be constructed without the need for large molded parts, and whose cost can be kept low.

[Means for solving problems]

In the power feeding section of the insulated trolley provided by the present invention, the cover made of an insulating material that covers the feed ink lamp and the exposed conductor part has a cross section in which the insulating cover is inscribed with a pair of cover pieces each having a substantially L-shaped cross section. A joint clamp cover that is joined together in a substantially U-shape and thereby straddled between the cut ends of the insulating cover, and a substantially U-shaped cross section that covers the bent part of the U-shaped cross section of the joint clamp cover from the outside. and a feed-in terminal cover having a shape, and the feed-in clamp extends into the feed-in terminal cover by penetrating the U-shaped bent part of the joint clamp cover. [Embodiment] 1 and 2 are a side view and a front view showing a preferred embodiment of a power feeding section of an insulated trolley according to the present invention.

The insulating trolley 9 has an insulating cover 7 having a substantially U-shaped cross section on a conductor 8 having a current collector contact surface formed on one side.
Both edges of the insulating cover 7 extend from the current collector contact surface of the conductor 8 and serve as running guides for the current collector.

For the insulating trolley 9, cut and separate the insulating cover 7 at the point where you want to supply power to expose the conductor 8, and then attach the feed clamp 4 to the side surface that connects to the left and right sides of the current collector contact surface at the exposed conductor part by tightening the bolts 10 and nuts. It was concluded in 11. The terminal mounting portion 5 of the feed clamp 4 extends in a direction opposite to the current collector contact surface.

Now, the cover attached to the place where the feed-in clamp 4 is attached as described above consists of a joint clamp cover 1 and a feed-in terminal cover 3.

Thus, the joint clamp cover 1 is constructed by combining cover pieces 1a and 1b made of a molded body of insulating material and having an L-shaped cross section into a substantially U-shaped cross section that inscribes the insulating cover 7. The cut ends of the insulating cover 7 are gripped and the cut ends are straddled between the opposing parts, thereby covering the conductor gripping part of the feed-in clamp 4. . Pair of cover pieces 1a,
Both side edges of 1b extend further from the sliding surface of the conductor 8 to form guides for running the current collector. Further, at the bent portion 2 of the U-shaped cross section on the opposite side, the terminal attaching portion 5 of the feed ink lamp 4 is penetrated, and the terminal attaching portion is extended to the outside of the bent portion 2. Note that the bent portion 2 is provided with a thin wall portion 6 that can be easily removed in order to provide a hole through which the terminal attachment portion 5 of the feed ink clamp passes.

Furthermore, insert metal fittings are embedded in the outer surfaces of the cover pieces 1a and 1b, and female threads 18 are provided so as to face the outer surfaces.

On the other hand, the feed-in terminal cover 3 has an end surface approximately U
The joint ink clamp cover 1 is shaped like a letter and is provided to cover the bent part 2 of the joint ink clamp cover 1 from the outside, so that both side edges are applied to the outer surfaces of the cover pieces 1a and 1b that constitute the joint clamp cover. By passing the bolts 16 through the bolt holes 19 on the edges of both of them and screwing them into the female threads 18, they are fixed to the joint clamp cover, and the terminals extending from the bent part of the joint clamp cover can be attached. It includes part 5. Therefore, the cable 13 is drawn into the feed-in terminal cover 3 and connected to the terminal attachment portion 5 through the feed-in terminal 14.

15 is its fastening bolt.

[Action/effect of the invention]

As explained above, according to the power supply unit for an insulated trolley according to the present invention, a pair of cover pieces each having a substantially L-shaped cross section is used as a cover for covering the exposed conductor portion and the feed clamp. A joint clamp cover joined together in a substantially U-shape is used to grasp the cut ends of the insulating cover and straddle the cut ends of the insulating cover, and the feed clamp is fastened to the exposed conductor part. The terminal mounting portion is extended to the outside through the bent portion of the U-shaped cross section of the joint clamp cover, and the feed-in terminal cover, which has a substantially U-shaped cross section, is arranged to cover the bent portion of the joint clamp cover from the outside. Since the terminal mounting part and the feed-in terminal to be fastened to the joint clamp cover are enclosed in the joint clamp cover, the joint clamp cover can guide the current collector travel while maintaining the specified strength. Therefore, the feed-in terminal cover is thin and compact. In addition, the joint clamp cover is
The same processing conditions and size as the cover used for the connection between conductors can be used, and furthermore, it can be easily manufactured to the specified dimensions without increasing the size, contributing to cost reduction.

[Brief explanation of drawings]

1 and 2 are a side view and a front view showing an embodiment of the power feeding part of the insulated trolley according to the present invention, and FIG. 3 is a cross-sectional explanatory view showing an example of the power feeding part of the conventional insulated trolley. It is. In the symbols, 1 is the joint clamp cover, 1a and 1b are the cover pieces, 2 is the bent part with a U-shaped cross section, 3 is the feed-in terminal cover, 4 is the feed-in clamp, 5 is the terminal attachment part, and 7
is an insulated cover, 8 is a conductor, 9 is an insulated trolley, 1
4 is a feed-in terminal.

Claims (1)

[Claims] 1. Cut and separate the insulating cover, which has a roughly U-shaped cross section, at any part to expose the conductor, fasten a feed-in clamp to the exposed part of the conductor, and connect the feed-in clamp and the exposed part of the conductor to the insulating material. The cover includes a pair of cover pieces each having a substantially L-shaped cross section, which are combined into a substantially U-shaped cross section that encloses the insulating cover. The feed-in clamp consists of a joint clamp cover that straddles the joint clamp cover, and a feed-in terminal cover that has a substantially U-shaped cross section and covers the bent part of the joint clamp cover's U-shaped cross section from the outside. cover U
A power feeding section of an insulating trolley, characterized in that the feeding section extends into a feed-in terminal cover by penetrating the letter-shaped bent section.