| 摘要 |
PURPOSE:To reduce both sliding resistance and noise by configurating a device in such a way that firstly, a push-pull type wire is fastened onto a driving force catch where the fastening portion of the said wire is wound with a wire, secondly, the said wire is covered with a synthetic resin tube with exception of the fastening portion so that the said wire slides through a guide rail. CONSTITUTION:A driving wire 16 is made of a steel wire 16b of a push-pull type, and is fastened onto a driving force catch 50 where an iron wire 16a is wound spirally around the driving wire. And the said driving wire is covered with a synthetic resin tube 80 except a fastening portion 16a allowing the outer circumference of the tube 80 to pass through a guiding groove of a main guide rail 15 (not shown). This configuration allows the synthetic resin tube 80 to slide through the inside of the guide rail, firstly reduces sliding resistance, and secondly prevents sliding noise simultaneously.
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