Title:
TRACTION DEVICE FOR TRAILER
Document Type and Number:
Japanese Patent JP3743951
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a traction device enabling a tractor to be maneuvered simply as motive power for moving backwards, by directionally steering a dolly independently of a truck frame in driving a trailer backward to the right and left on a curve, without operating the steering wheel of the tractor in directing the dolly backward.
SOLUTION: In the trailer, the dolly rotatably provided at the front of the truck frame via a rotor is connected to the tractor by a traction bar. Using a pair of hydraulic cylinders for rotating the rotor, the dolly is freely steered for rotation about a vertical axis relative to the truck frame. At a bracket provided at the center of the front surface of a cross member at the front end of the dolly, a rotor is provided in such a way as to freely rotate about a vertical axis and a stopper is provided for engaging the rotor to non-rotatably hold the rotor or disengaging the rotor to rotatably hold the rotor. The traction bar that is long and straight is installed and connected to the rotor.
Inventors:
Kei Sato
Application Number:
JP2000382900A
Publication Date:
February 08, 2006
Filing Date:
December 15, 2000
Export Citation:
Assignee:
Kei Sato
International Classes:
B62D13/02; B62D13/06; B62D53/00; B62D53/04; (IPC1-7): B62D53/00; B62D13/02; B62D53/04
Domestic Patent References:
| JP59160672A | ||||
| JP59106305A | ||||
| JP10310080A |
Attorney, Agent or Firm:
Kozo Fujita