| 摘要 |
<p>In this device for indicating ( 10 ) pretensioning forces in a tensioning element ( 7 ), such as tie-down straps or tie-down ropes, the spring surrounds the tie bolt ( 3 ) which is located on the loop of the tie-down strap, and in response to weak forces describes a path ( 6 ) which is easily visible. The combination of two components which differ in shape allows the spring ( 1 ) to maintain its shape and spring constant. As a result, the pretensioning force is indicated directly, yet the spring is not subject to an additional load under high tensions but is protected by positive engagement.</p> |
