Patent ID: 9359143
Filing Date: 2016-06-07
CPC Classification: B61B,B65G

Claim Text:
1. A conveyance device comprises a conveying carriage having left and right carriage units for individually supporting left and right sides of an object to be conveyed, a carriage drive means for driving and propelling the left and right carriage units to move the conveying carriage along a conveyance path, wherein the carriage drive means comprises left and right screw shafts pivotally supported along respective movement paths of the carriage units, a driven roller pivotally supported to each carriage unit and engaged with a respective screw shaft, a transmission means for linking and coupling the left and right screw shafts to each other outside of the conveyance path, and a single motor linking and driving the left and right screw shafts via the transmission means, and wherein the movement path for each carriage unit comprises a lower guide rail guiding a lower end side of the carriage unit and an upper guide rail guiding an upper end side of the carriage unit, and both of the upper and lower guide rails are individually supported via individual upper and lower cantilever support members disposed at a side opposite to a side where the conveyance path is located with respect to the respective guide rails, and the driven roller of each carriage unit protrudes from each carriage unit to an outside opposite to the side where the conveyance path is located, at a height between the upper and lower guide rails, and the screw shaft is pivotally supported so as to penetrate between the upper and lower cantilever support members.