The scotch block consists essentially of a sole 1 and a block 8, the block 8 being laterally pivotable out of the contact area of the sole 1 thus permitting the scotch block to be released from the clamped tight position. Behind the block 8, a lock is provided in which an eccentric shaft 15 can be pivoted into a recess 18 provided in the sole 1. <IMAGE>
