| 摘要 |
PURPOSE:To make adjustable a conveyance speed of a conveyance plane by permitting a frame material to form the conveyance plane and a shaft to relatively move to absorb, in a case where an interval between adjoining shafts trained on chains and changed in a case for example of the chain being reversed at a sprocket part, said change of the intervals. CONSTITUTION:Many shafts 2 are trained in an equal interval respectively between left endless roller chains 1, 1 and between right roller chains 4, 4 disposed in parallel while spaced away, and two sets of net-shaped conveyors A, B formed by training a frame material 3 forming a conveyance plane are provided between adjoining shafts 2. The conveyor B is arranged to have its chain 4 located outwardly of the chain 1 of the conveyor A and having the shafts 2 different in their heights from each other. In addition, the frame material 3 comprises a spiral flat wire material having the front shaft 2 in a sandwiching manner. At least one of a front engagement part 3 engaging with the front shaft 2 and a rear engagement part 3b in engagement with the rear shaft 2 is provided movably longitudinally of the shaft 2. |
