Patent ID: 7077620

Claim:
A conveying apparatus comprising a cam rail extending along a horizontal running track and a carriage movable along the track, the carriage comprising: a deck; at least one erectable cross-linking mechanism mounted on the deck; the cross-linking mechanism including a pair of intercrossed links having a first link and a second link, the first link supported at one end thereof on a horizontal pivot axis adjacent to and fixed relative to the deck, the first and second links connected together at middle points thereof by a fulcrum parallel with the pivot axis; the cross-linking mechanism further including a driven member fitted to the first link between the pivot axis and the fulcrum; a carrier supported by the cross-linking mechanism; and an elevator supported vertically movably by the deck; the elevator including a bearing member fixed to the top thereof, the driven member supported by the bearing member horizontally movably relative thereto; the elevator further including a cam follower supported by the bottom thereof, the cam follower being able to follow the cam rail, lifting the elevator, so that the cross-linking mechanism erects to elevate the carrier.