| 摘要 |
PURPOSE:To reduce a load applied during conveyance, by a method wherein, in a device which conveys an object to be conveyed as the object is alternately placed on a fixed beam and moving beams, aligned in parallel thereto, through periodical movement of the moving beams, the moving beam is equally divided into two or more parts including the phase thereof. CONSTITUTION:A fixed beam 22 and, for example, trisected moving beams 32- 34 are aligned in parallel in a conveying direction A, and by periodically moving the moving beams 32-34 at trisected phase relations, an object B to be conveyed as it is alternately placed on the fixed beam 22 and the moving beams. The moving beams 32-34 are supported through connecting levers 93-98 to the peripheries of eccentric shafts 73-76 which are turned through a reducing gear 52 and a driving shaft 62 by a motor 42. Phases theta1-theta3 of load points C1-C3 supporting the moving beams 32-34, respectively, are shifted by 120 deg. each through trisecting of one full periphery of 360 deg. of each of the eccentric sharts 73-76. This reduces a load applied during conveyance and relieves a load at the starting by a weight equivalent to the eliminated balance weight. |
