초록 ▼

A tilt-in-place wheelchair having adjustable wheelbase includes front and rear side frames, hinged cross members supported on the frames, an adjustment rail supported on the frames for rotation relative to the frames, a block slideably supported on the rail and hinged to one pair of cross members, a

A tilt-in-place wheelchair having adjustable wheelbase includes front and rear side frames, hinged cross members supported on the frames, an adjustment rail supported on the frames for rotation relative to the frames, a block slideably supported on the rail and hinged to one pair of cross members, a latch supported on the rail and adapted for releasable engagement with the rail so that the block is alternately fixed to the rail to maintain the width of the wheelbase or released from the rail to allow adjustment of the wheelbase.

대표청구항 ▼

1. An apparatus for use as a wheelchair frame, comprising:a first side frame; a second side frame substantially parallel to the first side frame and spaced laterally therefrom; a first pair of cross members, mutually pivotally interconnected at an inner end thereof and foldable about the pivotal int

1. An apparatus for use as a wheelchair frame, comprising:a first side frame; a second side frame substantially parallel to the first side frame and spaced laterally therefrom; a first pair of cross members, mutually pivotally interconnected at an inner end thereof and foldable about the pivotal interconnection, a first member of the first pair coupled to and pivotably supported on the first side frame for variable angular positions, a second member of the first pair being coupled to and pivotably supported on the second side frame for variable angular position; a second pair of cross members spaced longitudinally from said first pair of cross members, mutually pivotally interconnected at an inner end thereof and foldable about the pivotal interconnection, a first member of the second pair coupled to and pivotally supported on the first side frame for variable angular position, a second member of the second pair pivotally being coupled to the second side frame for variable angular position; and means for adjusting and releasably holding the first pair of cross members and second pair of cross members at predetermined angular positions relative to the first and second side frames, including a longitudinally extending rail, supported for rotation about a longitudinal axis, a first end of the rail pivotably coupled to the first pair of cross members at a location spaced from the first and second side frames, a second end of the rail pivotably coupled to the second pair of cross members at a location spaced from the first and second side frames; and struts supported on the rail for movement along the rail, pivotably coupled to the rail, and extending from the rail toward and pivotably coupled to one member of the group consisting of the members of the first pair of cross members and the members of the second pair of cross members.