JPH04359602A - Trolley current collector - Google Patents

Abstract

PURPOSE:To provide a trolley current collector exhibiting high current collection efficiency even at a joint of rail. CONSTITUTION:A pin 9 for jointing a collector shoe 1 and an arm 4 is inserted into an elongated hole 12 made in the traveling direction of the collector shoe 1 so that the pin 9 can move freely in the traveling direction and springs 10 are disposed in front and rear of the pin 9.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a trolley current collector used in a trolley system for supplying power and transmitting signals to moving loads such as hoists and surveillance cameras in factories.

0002

2. Description of the Related Art FIG. 2 schematically shows the structure of a trolley current collector.

[0003] A typical conventional technique is that a current collector 1 (having a degree of freedom in the rotational direction) is jointed to a current collecting arm 4.
has a structure in which it runs on a rail 2 on which a conductor 3 is stretched.In order to prevent the current collector 1 and the conductor 3 from coming apart, a coil spring 5 is installed inside the current collecting arm 4. The force pushes the current collector 1.

0004

[Problems to be Solved by the Invention] When creating a curved part, the rail 2 of the trolley current collector cannot be made into one piece, and it is necessary to butt and insert the rail 2 into a joiner 8 as shown in FIG. I'm making it a joint.

[0005] Therefore, there is a possibility that a step or a gap may be formed between the abutting conductors 3 of the rail joint portion due to construction problems or external environment.

[0006] Conventional trolley current collectors jump due to the influence of the step at the joint portion, resulting in a deterioration in current collection characteristics.

[0007] The present invention aims to solve the above-mentioned problems and provides improved characteristics of a current collector.

[0008]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a spring 1 at the joint portion of the collector 1 and the collector arm 4 to reduce the impact force in the running direction of the collector 1.
0 is set.

[0009]

[Function] According to the above configuration, the impact force when the collector collides with the step of the rail joint part is absorbed by the spring that alleviates the impact force in the running direction of the collector, and the current collection characteristics can be improved. effective.

0010

Embodiment FIG. 3 shows the structure of essential parts of a trolley current collector according to an embodiment of the present invention.

In this embodiment, a pin 9 for jointing the current collector and the current collecting arm 4 is made movable in the running direction of the current collector 1, and springs 10 are provided before and after the pin 9. Thus, when the pin 9 (the tip of the current collecting arm 4) moves within the elongated hole 12, it receives a buffering force from the spring 10.

Therefore, the spring 10 absorbs and alleviates the impact force in the traveling direction of the collector 1 that occurs when the collector 1 travels on the rail joint portion.

[0013]

[Effects of the Invention] As described above, according to the present invention, the impact force in the running direction of the collector generated when the collector runs on the rail joint can be alleviated at the joint of the collector arm. Therefore, current collection characteristics can be improved.

[Brief explanation of drawings]

FIG. 1 is a schematic side view showing one embodiment of the present invention.

FIG. 2 is a schematic side view showing a conventional example.

FIG. 3 is a schematic perspective view showing a conventional example.

[Explanation of symbols]

1　Electronic collection 4 Current collection arm 9 pin 10 bye 12 long hole

Claims (1)

[Claims] 1. A spring 1 is provided at the joint between the current collector 1 and the current collecting arm 4 to reduce the impact force in the running direction of the current collector 1.
A trolley current collector comprising 0.