| 摘要 |
<p>A securing device in the form of a bolt or screw or dowel (1 or 1a) comprises a body (2 or 2a) into which a coaxial aperture extends from one end. An intermediate portion of the body through which the aperture extends has a tapering inner wall (14) and is provided with axial slots (16). A tapered pin (20) fitting the wall (14) is force fitted into the aperture to deform the intermediate portion outwards. The slots facilitate the deformation to cause the body to grip the sides of an aperture in which the securing device is inserted. Using such a device in the form of a bolt, the bolt shank can be held in engagement with the sides of the hole through which it passes while the shank is tensioned by the clamping load. Using such a device as a dowel makes it possible to accept a greater tolerance in the intended fit in a dowel hole.</p> |
