| 摘要 |
Securing member 1 adapted for a cavity 2 and intended to be capable of interacting in a fixed but detachable manner with a number of wall portions belonging to the cavity, consisting of two end parts 1a, 1b, means 3 for guiding the end parts towards and away from each other, and one or more intermediate parts 4 which, by the displacement of the end parts, are caused to rotate towards and away from interaction with said wall portions. Arranged between one intermediate part 4 and one end portion 1a is a distance piece 5 adapted to convert the movement of the end parts towards and away from one another into a rotary movement of the intermediate part 4. <IMAGE> |
