| 摘要 |
Apparatus for lifting or/and lowering persons has two interconnected X-frames each with two pivotally connected members arranged in an upright position in spaced parallel relationship, a support supported by the members, and one of two inflatable bags surrounding the pivotal connections so that portions of the bags lie between members, whereby inflation and deflation of the bags, opens the X-frames in scissors-fashion and allows the frames to close in a similar fashion thereby raising and lowering the support.
|
