Suspension claw for receiving and bracing loads on trough sections for tunnel construction comprises a traverse as abutment in a central part with inner and outer ribs for receiving a material, and bores for receiving cross-head screws

摘要

Suspension claw for receiving and bracing loads on trough sections comprises a traverse (22) as abutment in a central part (24) with inner (34) and outer (35) ribs for receiving a material, and bores for receiving cross-head screws and a load screw (13). The hook head of the cross-head screws has a wedge or sloping cutting action. Preferred Features: The shaft (42) of the cross-head screws is reinforced with an asymmetric cone (41) receiving the cross-head. The shaft is formed parallel to the outer surface of the trough profile.