F - Mech Eng,Light,Heat,Weapons – 16 – B
Patent
F - Mech Eng,Light,Heat,Weapons
16
B
F16B 39/36 (2006.01) E04B 1/26 (2006.01)
Patent
CA 2249799
A locking apparatus includes an inner ring having a tapered outer shape and permitting a bolt of a fastener, with which construction elements are fastened, to pass therethrough, an outer plate formed with a tapered bore which receives the inner ring, a coil spring which urges the inner ring toward the outer plate, and a nut threadedly engaged with the bolt on the side close to an outer end of the coil spring. When an external force is applied to a construction so that the outer plate is displaced toward the nut, together with the construction element associated therewith, the outer plate applies a force, exerting in the direction axially of the bolt, to the inner ring. When receiving the force which has a component directed radially inwardly of the bolt, the inner ring is reduced in diameter to tighten the bolt, thereby preventing a further displacement of the outer plate and the construction element.
Smart & Biggar
T. Kato Co. Ltd.
LandOfFree
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