FASTSPENNINGSTILBEHOER TIL EN ANORDNING FOR AA DRIVE STANGELEMENTER AV LAV STIVHET INN I BAKKEN.

摘要

PCT No. PCT/SU85/00073 Sec. 371 Date Jul. 2, 1986 Sec. 102(e) Date Jul. 2, 1986 PCT Filed Aug. 22, 1985 PCT Pub. No. WO86/03534 PCT Pub. Date Jun. 19, 1986.A clamping attachment to a device for driving elongated rod elements of low rigidity into the ground comprises a housing (1) having a through tapered interior (2) and shoulders (7) on the outer surface. The interior (2) of the housing accommodates two spring-biased wedging elements (3) with slots (4). The slots (4) receive ends of arms (9) secured on the shoulders (7). Interposed between the spring (12) and wedging elements (3) is a washer plate (14). End faces (16, 17) of the wedging elements (3) and washer plate (14) are tapered. Contact surfaces (10, 11) of the slots (4,) and arms (9) are inclined to the longitudinal axis of the clamping attachment.