초록 ▼

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

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.

대표청구항 ▼

A carriage for supporting a stretcher, said carriage comprising: (a) frame means, front legs pivotally mounted to the frame means, and means for locking the front legs in at least two pivotal positions with respect to the frame means, (b) the front legs including first front roller means mounted to

A carriage for supporting a stretcher, said carriage comprising: (a) frame means, front legs pivotally mounted to the frame means, and means for locking the front legs in at least two pivotal positions with respect to the frame means, (b) the front legs including first front roller means mounted to carry the frame means long a first directional path and front steering roller means mounted to carry the frame means along a plurality of directional paths transverse to the first directional path, and (c) the location of the front roller means and the front steering roller means with respect to each other on the front legs being effective to cause only the first front roller means to support the frame means when the front legs are in one of the pivotal positions and to cause only the front steering roller means to support the frame means when the front legs are in the other pivotal position.