| 摘要 |
<p>A patient hoist has parallel legs which can be splayed by a lever mechanism (50) which is swung about axis (52) by a pedal (not seen in this view) which is generally parallel to the beam (10) on which the legs are pivoted, and which pedal is rocked about an axis lying parallel to and between the legs so that a pin (46) depending from the pedal moves in an arc lying in a vertical plane to cause that swinging movement.</p> |
