JPH0218642Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an electric self-propelled trolley, and particularly to an electric self-propelled trolley in which a power supply cable for supplying power to the propulsion motor, etc. of the trolley is stretched between one end of the running route and the trolley. Even if the trolley running route is curved, the power supply cable is buried under the floor along the running route so that the trolley can run.

Hereinafter, one embodiment of the present invention will be described based on the attached illustrative drawings. 1 is an electric self-propelled trolley,
A pair of front and rear bogie carts 3a and 3b are provided which are rotatable around vertical shafts 2a and 2b, respectively, and free-rotating wheels 4 are pivotally supported at both left and right ends of one bogie cart 3a.
Drive wheels 6 are pivotally supported at both left and right ends of the other bogie truck 3b and are interlocked and connected to a propulsion motor 5 supported by the bogie truck 3b. Reference numeral 7 designates a pair of front and rear load support stands protruding from both ends of the truck 1 in the running direction, and forms a running fork entry space 9 for transfer under the load 8 to be supported.

Reference numeral 10 denotes a trolley running guide groove, and a channel member 11 is buried under the floor along the running route of the trolley 1.
It is composed of. In the pair of front and rear bogies 3a, 3b of the bogie 1, running direction guide rollers 12a, 12b and 13a, 13b, which are loosely fitted into the upper half of the guide groove 10, respectively, are provided on the front and rear bogies 3a, 3b. It is pivotally supported by a vertical shaft via support plates 14a and 14b that protrude in the direction.

Reference numeral 15 denotes a power supply cable whose one end is connected to the propulsion motor 5, and which is connected to a self-winding type cable reel 16 rotatably installed around a horizontal axis between the front and rear bogies 3a and 3b of the truck 1. The cable 15 wound and let out from the reel 16 is connected to one bogie 3b and the support plate 14b.
The guide rollers 17 are pivoted between the pair of left and right guide rollers 17 that are pivotably supported diagonally between them, the opening 18 provided in the support plate 14b, and the bottom of the bogie bogie 3b so as to fit loosely into the guide groove 10. It is introduced into the guide groove 10 via the lower side of the guide roller 19 , and is connected to the power supply terminal at one end of the bogie travel path via the bottom of the guide groove 10 .

By feeding power to the bogie propulsion motor 5 via the power supply cable 15 and driving the drive wheels 6, the bogie 1 can be propelled in any direction forward or backward. By fitting the guide rollers 12a, 12b and 13a, 13b, both the front and rear bogies 3
a and 3b are rotated around the vertical axes 2a and 2b, but are always maintained in an attitude orthogonal to the guide groove 10, so that the bogie 1 is automatically steered along a travel path along the guide groove 10. It will be self-propelled. On the other hand, when the trolley 1 moves forward, the power supply cable 15 is pulled out from the reel 16.
The guide groove 1 is moved by the guide rollers 17 and 19.
0 and embedded in this guide groove 10. When the truck 1 moves backward, the power supply cable 15 is pulled up from within the guide groove 10 and wound onto the reel 16.

As in the above embodiment, the electric self-propelled trolley of the present invention is
A guide groove is buried in the floor along the running route of the trolley, and the electric self-propelled trolley has a running direction guide roller that fits in the guide groove that is pivotally supported, and a power supply cable that supplies power to the propulsion motor, etc. of the trolley. A cable reel is provided which guides the cable from one end of the running route through the guide groove to the carriage, and winds up and lets out the cable as the carriage moves. The electric self-propelled cart can be automatically steered along the guide groove by the traveling direction guide roller that fits therein, and the inside of the guide groove for automatic steering can be used for power supply. Since the cable is guided to the electric self-propelled trolley, there is no need to expose the power supply cable on the floor. Even if the trolley travel route is curved, the cable can be routed without using the cable guide that protrudes above the floor. can be reliably held along the trolley travel route. Therefore, the floor surface that serves as the trolley travel route can also be used as a safe passage surface for other vehicles and people.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway plan view, FIG. 2 is a longitudinal side view, and FIG. 3 is a partially cutaway rear view. DESCRIPTION OF SYMBOLS 1... Electric self-propelled cart, 3a, 3b... Bogie cart, 4... Idle wheel, 5... Motor for propulsion of the cart, 6... Driving wheel, 10... Guide groove, 12a,
12b, 13a, 13b... Running direction guide roller, 14a, 14b... Support plate, 15... Power supply cable, 16... Automatic winding type cable reel, 17, 19... Cable guide roller, 18
……Aperture.

Claims (1)

[Scope of utility model registration request] A guide groove is buried in the floor along the trolley travel route,
The electric self-propelled truck has a running direction guide roller that is fitted in the guide groove, and a power supply cable that supplies power to a propulsion motor, etc. of the truck is routed from one end of the traveling path through the guide groove. An electric self-propelled trolley comprising a cable reel that guides the cable to the trolley and winds up and lets out the cable as the carrier moves.