| 摘要 |
A device suitable for use in firmly fixing one member (10), to another member (12) in a relatively adjustable position, comprising a retaining part (2) fixable to said one member and a retained part (4) in use retained by, yet movable relative to, said retaining part, the retained part being adapted to be secured to the other member and to become substantially immovable relative to the retaining part when said securement is tightened, characterized in that the retained and retaining parts are formed as one piece but are breakable apart (6) to permit said relative movement. |
