JPS61295139A - Trolley duct - Google Patents

Abstract

PURPOSE:To make an inserting position of a current collector proper enough, making it contact with a conductor of a trolley duct surely, as well as to prevent a short circuit accident due to derailment and a damage accident in the conductor and a collector from occurring, by extending a peripheral wall part of a separator to the extent of a sidelong direction inside the current collector. CONSTITUTION:At a part of an inlet 12 of a current collector 6, a peripheral wall part 20b of a separator is formed into such height as extending up to a sidelong direction of a part inside a duct body 9 of the current collector 6. And, when the current collector 6 is inserted, a collector 15 hits the peripheral wall part 20b whereby this point is regarded as a proper position and positioned thereat. In consequence, the collector 15 of the current collector 6 can be made contact with a conductor 11 of a trolley duct without fail. Therefore, a short circuit accident due to derailment and a damage accident in the conductor 11 and the collector 15 are all prevented from occurring.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a trolley duct that supplies electricity to mobile equipment such as hoists and cranes.

[Background technology]

Conventionally, a trolley system is configured as shown in FIG. The trolley duct 1 is suspended by a hanger 3 fixed to a construction material 2, and is supplied with power from a feed-in box 4 at a terminal or a center feed-in box 5 at the center of the line. The trolley duct 1 has a dropout duct 1a,
It is divided into a straight duct 1b, a horizontal duct IC, etc., and connected with a connecting plate. The current collector 6 is inserted into the dropout duct 1a from the current collector insertion lower part, and is towed by the traction arm 8 while supplying electricity to the load.

The dropout duct 1a of the trolley duct 1 includes, as shown in FIG. It is composed of two covers 13 that open and close the mouth 12. The separator IO is made of an insulator and is provided on the inner surface of the -knee of the web 9a of the duct body 9, as shown in FIG. The separator 10 is
It has a partition wall portion 10a located between each of the conductors 11 arranged in parallel, and a side edge wall portion 10b located between the conductor 11 and the flange 9b of the duct body 9, and each of these wall portions 10a, 1
A bare conductor 11 is positioned and held between 0b and 0b via an insulator 14. The insulator 14 is provided on a portion of the conductor 11 in the longitudinal direction. Note that the conductor 11 is connected to the partition wall portion 10a.
When the current collector 15 of the current collector 6 is made to protrude further than the conductor 1, the current collector 15 of the current collector 6
1, the lower end surface of the partition wall portion 10a and the lower surface of the conductor 11 are positioned on the same plane.

The current collector insertion port 12 is provided from the lip portion 9C of the duct body 9 to the middle height of the flange 9b, and the cover 13 is supported at its upper edge by a hinge 16 so as to be rotatable in opening and closing.

The current collector 6 has a current collector 15 in contact with each conductor 11, a running roller 17 that rests on the lip portion 9C of the duct body 9, and a guide roller 18 located between the lip portions 9C.

However, according to this configuration, since the current collector insertion slot J-knee 12 opens the left and right covers 13 and inserts the current collector 6, it is impossible to center the current collector 6 in the left and right direction during insertion. Become. Therefore, the current collector 15 may be inserted and inserted in a state where it is disconnected from the conductor 1 as shown in FIG. When inserted in a derailed state like this, the collector 15 is
The space distance required for electrical insulation between the conductor 11 and the current collector 15 is insufficient, resulting in a short circuit accident. Also, if you move in a derailed state, the collector 1
5 and the conductor 11 may be damaged. Furthermore, the conductor 11
Since the lower surfaces of the partition wall portion 10a of the separator 10 and the lower surface of the partition wall portion 1. There is a possibility that the conductor 11 may slip on the conductor 11, and at this time, the insulating material powder generated by scraping the partition wall portion 10a may adhere to the surface of the conductor 11, causing a contact failure.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a trolley duct that prevents the current collector from being inserted in a derailed state and prevents short-circuit accidents and damage to the conductor and current collector.

[Disclosure of the invention]

The present invention includes a duct body having a substantially lip groove shape, a plurality of conductors arranged in the width direction of a web portion in the duct body, and a partition provided on the inner surface of the web of the duct body to partition the conductors. an insulating separator having a wall portion and a side edge wall portion interposed between the conductor and the flange portion of the duct body; and a current collector insertion opening having a lip portion cut out at a portion in the longitudinal direction of the duct body. and a cover that can open and close the current collector insertion port, the side edge walls on both sides of the separator between the current collector insertion port are connected to the inside of the duct of the current collector. The height extends to the sides of the

Note that the side edge wall portion may have a height extending over the entire length to the side of the current collector.

According to the configuration of the present invention, the side edge wall portion of the separator has a height extending to the side of the duct interior portion of the current collector at the current collector insertion opening, so that when the current collector is inserted, The current collector is positioned at an appropriate position by hitting the first part of the side. Therefore, the current collector of the current collector reliably comes into contact with the conductor of the trolley duct, thereby preventing short circuit accidents due to derailment and damage accidents to the conductor and current collector.

Embodiment An embodiment of the present invention is shown in FIG. In this trolley duct, the side edge wall portions 20b on both sides of the separator 20 have a height extending to the sides of the current collector 6 inside the duct. The gap d between the side edge wall portion 20b and the current collector 6 is set to be as narrow as possible within a range that does not hinder running. The separator 20 is made of an insulating material,
The duct body 9 has a partition wall portion 20a provided on the lower surface thereof and located between each conductor 11. Other configurations are the second
Since it is the same as the example shown in FIG. 3 and FIG. 3, the same reference numerals are given and the explanation thereof will be omitted.

According to this configuration, in the current collector insertion opening 12, the side edge wall portion 20b of the separator 20 has a height that extends to the side of the inside of the duct of the current collector 6, so that the current collector 6 can be inserted easily. Sometimes, the current collector 15 is connected to the side edge wall 20.
By hitting b, it is positioned at the proper position. Therefore, the current collector 15 of the current collector 6 is reliably in contact with the conductor 11 of the trolley duct, and therefore short circuit accidents due to derailment and accidents of damage to the conductor 11 and the current collector 15 can be prevented.

〔Effect of the invention〕

In the trolley duct of the present invention, the height of the side edge wall of the separator at the current collector insertion opening extends to the side of the inside of the duct of the current collector, so that when the current collector is inserted, The current collector is positioned at an appropriate position by hitting the side edge wall. Therefore, the current collector of the current collector reliably comes into contact with the conductor of the trolley duct, which has the effect of preventing short-circuit accidents due to derailment and damage to the conductor and current collector.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view of an embodiment of the present invention in a current collector inserted state, Fig. 2 is a perspective view of a conventional trolley system, Fig. 3 is a partially enlarged perspective view thereof, and Fig. 4 is a partially enlarged cross-section thereof. It is a diagram. 6... Current collector, 9... Duct body, 11... Conductor, 12... Current collector insertion port, 13... Cover, 1
5... Current collector, 20... Separator, 20a...
Partition wall portion, 20b...Side edge wall portion Fig. 4

Claims (1)

[Claims] a duct body having a substantially lip groove shape; a plurality of conductors arranged in the width direction of a web portion within the duct body; a partition wall portion provided on the inner surface of the web of the duct body to partition between the conductors; an insulating separator having a side edge wall interposed between the conductor and the flange of the duct body; a current collector insertion opening having a lip cut out in a part of the longitudinal direction of the duct body; In the trolley duct equipped with a cover that can open and close the electric device insertion opening, the side edge walls on both sides of the separator are extended between the current collector insertion opening to the sides of the inside of the duct of the current collector. A trolley duct characterized by an extending height.