| 摘要 |
PROBLEM TO BE SOLVED: To manually adjust by coupling a specific rope or chain unit to a specific counterweight via a specific turning roller, and balancing its mass with a printer protective member. SOLUTION: Suspension members 53 for two ropes or chain units 5, 6 are provided at both sides of a lower area of a printer protective member 1. Turning rollers 7, 8 are respectively disposed at a drive side 11 and an operating side 12 in an upper area of a printer 2. The ropes or the units 5, 6 are guided via the rollers 7, 8, and counterweights 9, 10 are disposed at ends. Here, the counterweights 9, 10 are balanced with the member 11 in weights so that the member 1 is retained at moved position without almost wasting a force to vertically adjust. Thus, the member 1 can be manually adjusted without labor by one operator. |
