| 摘要 |
A tension-compensating apparatus of the present invention, in which an inclined plane of a tension bracket (side wall) moving by a tension change varying with a length of a cable and a wedge plate moving in a length direction of a coil spring are installed in contact with each other, and enables the side wall and the wedge plate to serve as a wedge using a component of elastic force varying according to a tension of the cable, so that the tension-compensating apparatus has a simple structure without a separate configuration and allows a tension adjustment to be automatically performed by a wedging action according to the tension change of the cable. Specially, in the tension-compensating apparatus of the present invention, an auxiliary spring is provided to the wedge plate, thus, the side wall and the wedge plate always maintain in contacted within each other, so that although the a change in the tension is momently generated, a wedge action between the side wall and the wedge plate is immediately reflected. The tension-compensating apparatus of the present invention includes: a fixing bracket fixed to a carrier plate; a coil spring in which one end thereof is supported by the fixing bracket; a tension bracket installed the other end of the coil spring, and supporting an end of the cable penetrating the coil spring and receiving a tension, in which a inclined plane is formed at a lower portion of one end thereof, a wedge plate in which a inclined plate is formed so as to contact the side wall, the wedge plate moving parallel in a length direction of the coil spring by receiving a guide of a guide formed at the fixing bracket and performing a wedge function by the guide; and an auxiliary spring, in which one end thereof is fixed to the bracket, and the other end thereof is fixed to the wedge plate, the auxiliary spring supplying a tension to the wedge plate. |
