| 摘要 |
<p>A helical member comprises a continuum of coaxial, helixes disposed in spaced longitudinal relation which define an axial aperture that is adapted to receive an external connecting device such as a line or anchor pin. An elastic core is disposed within the aperture in frictional engagement with at least one of the helixes. One end of of the core is attached to the member and a free end extends out of the aperture. Gripping the free end and stretching the core reduces its cross-sectional dimensions which releases the frictional engagement and provides sufficient space to admit the connecting device. Releasing tension on the core substantially restores its original dimensions and releasably grips the connecting device between the core and at least one helix to provide a simple, yet effective attachment.</p> |
