| 摘要 |
PURPOSE:To enable winding for several tens of rotations with one set of cases and to reduce the length of an apparatus by piercing a cable through the interior of a rotary shaft to be turned several times from the inner periphery and the outer periphery like a spring and stored in the first and second cable cases and guiding same to the fixed side. CONSTITUTION:In case of winding, when a driving shaft 1 rotates a designated number of times, a cable is strained in a cable case 4 so that cases 4, 4' are rotated with a driving disc 3. When the cases 4 and 4' are rotated in a body, the cable is wound round an unrotatable driven disc 6, and if the shaft 1 is rotated more than fixed, the cable is strained also in the case 4' and fastened so that the driven disc 6 is subjected to the turning force. Accordingly, an intermediate driving disc 7 of the next block is subjected to driving force coupled to the driven disc 6 by a coupling member 11, so that the cable is rolled in the stationary case 4. When the similar operation is executed and a cable has been taken up on a driven disc 4' of the last block, the operation is completed to enable winding several tens of rotations. |
