| 摘要 |
A portable clamp/hanger device that provides a rigid connection that is releasable between a support beam and a hoist or other load-carrying means. The device includes a movable platform pivoted to a stationary U-shaped member with an opening therebetween. The flange of a support beam is located within the opening and the platform moves against the flange by tightening an underlying screw threaded through a hollow anchor shaft which is secured to the lower arm of the stationary member. A collar swivels universally about a portion of the anchor shaft and includes posts from which swings a hanger for attaching hooks, shackles, rope ties and the like. The platform is provided with an adjustable cleat for adapting to various sized beams. A locking mechanism is included to prevent loosening of the screw. Alternatively, auxiliary pressure can be applied to the movable jaw with a cam and ratchet mechanism or other force transfer device. |
