2017 Volume 17 Issue 2 Pages 147-152
This paper presents the development of a new step-climbing mechanism for heavy load carrier. The basic design of the proposed mechanism is illustrated, and its prototype is manufactured. Measured impact acceleration using the prototype. The results from several experiments demonstrate that this prototype is able to drive over the target step 10mm effectively. It is, therefore, shown that the proposed mechanism is effective for driving over a step. However, it was revealed that large impact acceleration occurred to the carrier when descending the step. Thus, the characteristic of shock acceleration when getting down from the step was clarified. Then it was found out that it is able to be reduced the maximum shock acceleration by using rotational dumper.
