hoists for the frail and chronic sick persons

摘要

An invalid hoist with a weighing facility comprises a mobile chassis (1) on which is an upright support column (2) is mounted. A lifting arm (3) projects from the column (2) and supports a patient support member (4) fixed at the outer end of the arm (3). Manual lifting mechanism within the column (2) is operable to raise or lower the arm (3) along a rectilinear path. The arm (3) comprises a short inner end stub portion (7), adjacent the column (2), and an outer end portion (8) to which the support member (4) is attached. A strain gauge load cell (9) is let into the arm (3) and is flange-bolted to the arm portions (7) and (8). Associated electronic detecting and indicating circuitry (U) mounted on the column (2) and connected to the strain gauge arrangement of the load cell (9) provides an indication of the weight of a patient when supported on the patient support member 4. IMAGE