Firm clamping arrangement for hole space

摘要

The bolt (1) in each case has a nut (11) working in conjunction with the thread (1'). Around the bolt is a washer (12) and a yoke (13) is positioned between the washer and the nut. The yoke and the hole space are so matched that the yoke can produce a clamping effect with the wall parts (2b,2c) when the nut is rotated around the bolt or vice versa. The yoke comprises a collar-shaped part (41) orientated around and adjacent to the bolt and a wall structure (42) diverging from the collar-shaped part. The collar-shaped part has a dia. which corresponds to half the dia. of the hole space (2). The wall structure and the collar-shaped part are formed as an integrated unit. The wall structure in a position where it does not work in conjunction with the wall parts is orientated at an angle greater tha 45 deg. in relation to a bolt centre line.