Hookable turnbuckle device

摘要: The invention relates to a turnbuckle device (11) for clamping concrete shell elements (1, 2). inventive is provided with two claws (12, 13) which can be moved against each other, and wedge (18). have limbs (14, 20; 41). 41) comprise bearing surfaces (30, 31, 43) extend on plane are used bear cross struts (7, 21; 50) of frames (5, 6) made also projections (16, 22, 40) arranged the free ends thereof, said being suitable engagement behind recesses (9, 15) in characterised that an extension (17, 42, 44, 45) projection (16; limb (14; 41), extending away from surface at least partially perpendicular manner (30; As result, mounting easier.