发明名称 |
CLIMBING AND DESCENDING VEHICLE |
摘要 |
A stair-climbing and descending vehicle is disclosed, comprising a frame and a pair of transverse, co-axial, powerdrive axles, each rotatably carrying a spider assembly at its outer end. Each spider has at least three wheels, one at each equi-spaced extremity of its radial arms. Each axle drives either the spider or the associated wheels through a differential gearing. When climbing a stairway, the spiders are rotated immediately when the wheels are prevented from rotating by encountering a stair riser. The differential also serves to safely and smoothly descend the stairs. The vehicle is adapted for use as a wheelchair, in which case a chair-shifting device is provided to shift the center of gravity of the vehicle, rearwardly. |
申请公布号 |
CA1275296(C) |
申请公布日期 |
1990.10.16 |
申请号 |
CA19870536338 |
申请日期 |
1987.05.04 |
申请人 |
DECELLES, FABIEN;DECELLES, PIERRE |
发明人 |
DECELLES, FABIEN;DECELLES, PIERRE |
分类号 |
A61G5/06;A61G5/10;B62B9/06;B62D57/00;B62D57/02 |
主分类号 |
A61G5/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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