| 摘要 |
PURPOSE:To advance trucks loaded with transported goods disposed on rails at equal intervals by a fixed pitches by reciprocation of a walking beam. CONSTITUTION:Trucks 21 disposed on rails 24 one to every pitches are fixed on a base 25 by projection of rods of cylinders 28, 28'. A rod of a cylinder 27 is projected to be inserted into coupling means 26 for movement, so that a walking beam 30 and the truck 21. Then the rods of the cylinders 28, 28' are drawn back, so that the truck 21 is released from the base 25. Next, a rod of a cylinder 31 is projected to advance the walking beam 30 ony one pitch, and simultaneously the truck 21 is advanced only one pitch. Thus, the walking beam 30 is adapted to reciprocate forward and backward on the same place, and only the truck 21 loaded with transported goods 33 advances pitch by pitch. |
