| 摘要 |
PURPOSE:To improve the rate of operation by disposing guide rods apirally curved at an angle of about 180 deg. at each face of a bucket along a transfer path from the transfer start end to the terminal end. CONSTITUTION:Between the bucket transfer start end 1a and the terminal end 1b, bucket guide rods 11-14 spirally curved at an angle of about 180 deg. are disposed at each face of a bucket 2. These guide rods 11-14 are framed and fixed to frames 15-18. In this arrangement, the bucket 2 which has reached the bucket transfer start end 1a is guided by the guides 11-14 to slide down by its gravity to the terminal and 1b. At this time, as the guide rods 11-14 are spirally twisted at an angle of 180 deg., the bucket 2 is smoothly inverted, so that an opening of the bucket assuredly looks down at the terminal end. Thus, the driving is smoothed to improve the rate of operation. |
