| 摘要 |
A joint forming device for use in forming a joint between two members comprising an elongate fastening element, a tightening element having at least one arcuate camming surface for cooperably engaging an engaging portion of the fastening element and at least one housing for the fastening element and the tightening element with the or each camming surface and the engaging portion positioned for the cooperable engagement. The housing includes a first housing for housing the tightening element, a second housing for housing at least an expansion portion of the fastening element and at least one member connecting the first and second housings. The first housing and the second housing are adapted for cooperative engagement with the tightening element and the fastening element, respectively. In use, the first housing is fitted to a recess in one of the joint members and the second housing is fitted to a recess in the other the joint members to form a joint therebetween. Rotation of the tightening element in one sense about an axis of rotation thereof causes axial movement of the fastening element towards the axis of rotation causing the joint to tighten. The first housing and the second housing each expand generally radially outwardly during rotation of the tightening element for forceably engaging walls of their respective recesses. |
