| 摘要 |
PURPOSE:To facilitate the pulling-up of a cable by handing an endless chain from the top floor to the lowest floor, engaging binders for fastening a cable removably with the chain and connecting the binders successively at optional intervals at the lower floor while pulling up the cable by chain driving. CONSTITUTION:An endless chain 1 is hung from the top floor 12 to the lowest floor 14 of a building and circulated by a motor 6. A cable 4 is pulled out of a cable drum 5 installed on the lowest floor 14, connected to the chain 1 by binders 2 at the second floor 13, and pulled up by the rotation of the chain 1. At the second floor, the cable 4 and the chain 1 are connected successively at optional intervals by the binders 2. The binders 2 are successively removed at the top floor 12 or the floor below and the cable 4 is taken up by a cable puller 3 installed on the top floor 12. Pulling-up work can be thereby performed easily by a small number of workers. |
