| 摘要 |
<p>A locking connector for detachably securing a connecting member or brace to a frame part of a scaffolding, employs a gusset plate unit secured to the frame and provided with at least one latching slot portion. The end of the connecting member or brace carries a latching unit or device that is adapted to be removably introduced into the latching slot portion of the gusset plate. The latching device has a pair of spaced-apart flanges secured on a stub shaft, and a latching collar and a cooperating operating arm are rotatably carried on the shaft between the flanges. The latching collar has a centrally disposed flange and spaced-apart segmental or arcuate inner and outer pairs of lugs along the shaft secured on each side of the flange. The operating arm has a closed-end, elongated, slot portion that is adapted to ride on the inner pair of lugs for rotating the collar on the shaft. The gusset plate has an open slot entry passage or mouth portion of minimized entry extent through which the outer pair of lugs are adapted to be introduced when the lugs and the diametric spacing therebetween are aligned with the open mouth portion to expose the shaft between the restricted opening thereof. The open mouth portion is provided with inclined, outwardly diverging, entry edges along which the outer lugs are adapted to ride and roll in introducing the device into the latching slot portion. The gusset plate is provided with a cross wall portion against which an outer rounded flange of the pair secured on the shaft is adapted to engage and cooperate with the flange and the outer pair of lugs of the collar to provide a balanced aligning, inward rolling turning movement of the collar when the device is being introduced into a latching position.</p> |
