| 摘要 |
An automatic latch device for suspended bodies, such as electric light pendants and the like, comprising: a spherical segment-shaped box symmetrical about a plane passing through the center, the two shells comprising said box meeting on said plane and, in addition to being effective as containers, said shells being internally shaped so as to form a seating for members comprising the mechanism and forming part of said members as well. Inside the shell is a cylindrical cup drum, the carrying cable being externally wound thereon, for internally containing a coil spring, a disc having a central pin adhering to said spring, and a clutch plate wherein suitable seatings are formed for the clamping members with said drum. A pin fast with the rear shell has a diametrical slit for coupling the inner end of the spring about which said drum idling rotates, as well as a transverse pin for deviating said carrying cable. Outside the front shell a screw with a resilient washer is arranged and screws down in the pin of the disc adjacent said clutch plate; and a suitably shaped element is also provided for anchoring at the bottom both said carrying cable and the helical driving cable.
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