Seating device having curved bottom tilting on roller and secured by reeved cable

摘要

A narrow seating device or chair including a support caddy having lockable ground engaging caster wheels and a seat portion for a patient undergoing a medical test. The seat portion is detachably mounted on the support caddy and tiltable to a plurality of tilt positions. The seat portion has a convexly curved surface which rests on spaced apart rollers on the upper side of the support caddy to enable tilting. A safety mechanism detachably secures the seat portion to the support caddy, while still allowing for tilting. The safety mechanism includes a flexible steel cable which is reeved around a pulley attached to the curved surface. The ends of the cable are secured to the support caddy. A tension spring and a turnbuckle to adjust spring tension are connected each to a respective one of the ends of the cable. A locking mechanism releasably locks the seat portion in a selected tilt position. The locking mechanism includes a manually operable, axially movable, spring biased locking pin mounted on the support caddy. The locking pin engages one of a plurality of pin holes in a rim plate affixed to a side of the seat portion. Accessories for the chair are provided and include detachable adjustable arm rests, straps for safely securing the patient, an adjustable pillow, and attachment points for IV standards, oxygen tanks and other attachments.