Land vehicles: bodies and tops – Bodies – Ambulances
Patent
1990-08-17
1991-05-14
Song, Robert R.
Land vehicles: bodies and tops
Bodies
Ambulances
280767, 5 81R, A61G 102
Patent
active
050150243
ABSTRACT:
The carriage of the present invention includes front and rear legs pivotally mounted to a frame. The front legs include first roller members mounted to carry the frame along a first directional path and steering roller members are mounted to the rear legs for carrying the frame along a plurality of directional paths to effect steering of the carriage. In addition to the first roller means, the front legs include front steering roller members which are also mounted to carry the frame along a plurality of directional paths transverse to the first directional path to effect steering at the front of the carriage. The front legs may be locked in a plurality of pivotal positions in which the front end of the carriage will rest either only on the first roller members or the front steering roller members. The location of the first roller members and the front steering roller members with respect to each other on the front legs is effective to cause only the first roller members to support the frame when the front legs are in one of the pivotal positions and to cause only the front steering roller members to support the frame when the front legs are in another of the pivotal positions for the front legs.
REFERENCES:
patent: 3759565 (1973-09-01), Ferneau
patent: 4767148 (1988-08-01), Ferneau et al.
patent: 4776415 (1988-10-01), Brice
patent: 4921295 (1990-05-01), Stollenwerk
Markva Neil F.
Song Robert R.
Stollenwerk Fabrik fur Sanitatsaustungen Hans Stollenwerk & Cie
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