Title:
STEP DIFFERENCE RUNNING-OVER WHEEL
Document Type and Number:
Japanese Patent JP3046565
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To run over step difference, an obstruction, or the like easily by making a yoke slide forward along sliding regulating parts at the time of the step difference, obstruction, or the like coming in contact with a rear wheel, so as to shift the center of gravity close to a front wheel already on the step difference, obstruction, or the like. which causes the front wheel to go down to land and to act to run over the step difference, obstruction, or the like, thereby making it easy for the rear wheel reduced in the weight burden to run on the step difference, obstruction, or the like.
SOLUTION: When an obstruction 7 comes in contact with a rear wheel 5, a yoke 1 slides forward along sliding regulating parts 3 so as to shift the center of gravity close to a front wheel 4. The front wheel 4 already on the obstruction 7 goes down to land and acts to run over the obstruction 7, and the rear wheel 5 reduced in the weight burden can easily run on the obstruction 7. A series of such wheel action is continuously repeated. With this constitution, the wheels 4, 5 can pass over step difference, the obstruction, or the like safely and comfortably with small force, and particularly passing from an oblique direction, heretofore the most difficult barrier of a swivel truck, can be carried out easily with safety.
Inventors:
Kunio Kumamoto
Yukihiro Ishihara
Yukihiro Ishihara
Application Number:
JP17294597A
Publication Date:
May 29, 2000
Filing Date:
June 13, 1997
Export Citation:
Assignee:
Kunio Kumamoto
Yukihiro Ishihara
Yukihiro Ishihara
International Classes:
B60B33/00; B62B5/02; (IPC1-7): B60B33/00; B62B5/02
Attorney, Agent or Firm:
Sawao Ohya