Patent ID: 7658273
Filing Date: 2010-02-09
Classification: B65G,B66F

Abstract:
1. A conveyance device comprising an object supporting base vertically movable between a lowered position and a lifted position, provided on a conveyance carriage that can travel on a predetermined traveling route; cam follower rollers that move up and down in association with the object supporting base, provided at the bottom of the conveyance carriage; and cam rails for pushing up the cam follower rollers and a work section in which the object supporting base is held at the lifted position, provided in the traveling route of the conveyance carriage; and a turntable for changing the direction of the conveyance carriage, disposed in a traveling route on the downstream side of the work section, wherein between the work section and the turntable, a high-speed traveling section in which the carriage is made to travel at a high speed in a state that the object supporting base is lowered to the lowered position, is provided, at a position immediately before the turntable, cam rails for pushing up the cam follower rollers are disposed, and an object supporting base lifted position holding means for holding the object supporting base, which has been lifted to the lifted position by the cam follower rollers and the cam rails, at the lifted position until the conveyance carriage exits from the rotated turntable, is provided.