| 摘要 |
PURPOSE:To replace packings easily by separating a platen, a packing holder and a packing case by an extracting jig to remove the packing from the packing case. CONSTITUTION:A packing case 25 and a platen 20 are connected by an extracting jig such as turnbuckles 32, 36, then each clamped part is released. Since the platen 20 moves upward by handling the turnbuckle, a packing holder 27 and the packing case 25 are drawn upward and at the same time, a packing 26 also is taken out of the device. Under this condition, the worn out packing is replaced by a new one, and each part is clamped by the operations in the manner contrary the above mentioned operations to finish the packing replacement. |
