| 摘要 |
The stretcher has two stay joints (20) along its length. These are provided between the stretcher members (2) and are operable to maintain the stretcher rigid about the joint. The stay (20) comprises an inverted U-shaped cover (30) and a handle (23) fixed towards the apex of the inverted U cover (30). The joint (31) is located remote from the handle (23). A spring biased detent (26) is operable to engage one of the relatively movable elements (21, 22), and a button (24) is operable to release the detent so as to allow relative movement of the two elements (21, 22). The stretcher has a pair of telescopic handles (1) at each end of the stretcher. Each handle (1) is extendible from and retractable into a hollow stretcher member (2). The handles have retaining means (3, 3a) for securing the handle in one of a number of desired locations along the stretcher member (2). The retaining means comprises a spring loaded button (3) engageable in one of a number of orifices (3a) along the stretcher member (2). The button (3) and orifices (3a) are located on an inner face of the handle (1) and stretcher member (2). A keyway (14) and a guide element (15) engageable therewith are provided between the handle and stretcher member (2). |
