| 摘要 |
PURPOSE:To execute the recovery of flexibility, and straightening of the torsion of a chain after compression working, by allowing the chain to pass through a movable roller guide for moving up and down and fixed roller guides placed before and behind said guide, and also, inclining the fixed roller guides in the directions opposite to each other. CONSTITUTION:A chain 16 having no bendability, to which a compression working has been executed is allowed to pass through a movable roller guide 10 and two sets of fixed roller guides 12 placed before and behind said guide, while giving tension by a tensioner 34. Said movable roller guide 10 loosens said chain 16 and gives flexibility by allowing a slide 26 which has fixed said guide, to move up and down at a high speed by driving of a motor 18 through a crank 24, an eccentric shaft 23, etc. Also, by inclining a fitting plate 30 which has fitted said fixed roller guides 12, axis centers of said two pieces of fixed roller guides 12, 12 are inclined in the directions opposite to each other, on the surface parallel to the axis center of said movable roller guide 10. In such a way, a torsion of the chain 16 guided in peripheral grooves of both the roller guides 10, 12 is straightened.
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