| 摘要 |
<p>A tension control arrangement including a plurality of cams (5) disposed about an opening (21) that accommodates a bolt (3) to which a nut (11) is intended to be secured. Each of the cams has a contoured outer surface (6), and each of the cams (5) is rotatably supported such that the contoured outer surface (6) operatively engages both the base (1) and a contact member (7, 17) interposed between the cam (5) and the nut (11). A lever assembly (20) is operatively coupled to the cams (5), such that movement of the cams is substantially restricted to rotational motion from a first position in which the nut (11) is engaged with the bolt (3) and tightened by hand until it is seated against the contact member (7, 17), to a second position in which the bolt (3) is elongated to achieve a predetermined bolt tension.</p> |
