| 摘要 |
An attachment device for attaching a lifting sling (10), for a patient or invalid, to a hoist by engaging an attachment formation having a body and enlarged head on the hoist, the device comprising: first and second elements (35, 36; 62, 63) disposed in face to face relationship with one another and moveable relative to one another between first and second positions; the first element comprising a slot (40; 66) having a first portion (41; 67) through which the head of the attachment formation will pass and a second portion (42; 68) extending from the first portion and through which the body of the attachment portion can pass but through which the head will not pass; the second element having an opening (48; 72) through which the head of the attachment formation can pass and which aligns with the first portion (41; 67) of the slot in the first element when the first and second elements are in their first relative position and which aligns with the second portion (42; 68) of the slot when the first and second elements are in their second relative position, in which position the second element blocks the first portion of the slot in the first element; the first and second elements having formations (44, 49; 70, 73) which are able to receive a retaining element when the first and second elements are in their second relative position to hold them in such position. |
