| 摘要 |
PURPOSE:In a draft device of one - two spindles wherein a fitment part to be screwed to a frame base is extended from a main body part of a tensor having a free end corresponding to a bottom roller, the titled tensor capable of attaching and detaching the bottom apron quickly and simply. CONSTITUTION:The tensor 1 has the fitment part 5 at one end of the main body part 4 having the left and right guide walls 3 at both sides to prevent the horizontal direction of the apron 11, and fixed to the frame 7 of a frame base through the channel hole 6 by the bolt 8. The channel hole 6 is opened from the center of the fitment part 5 to its end, its lower part is formed in a two-stage state having a slightly larger diameter than the shaft part of the bolt 8, and its innermost part is provided with the slightly deep hollow 9 to insert the head 8a of the bolt 8. |
