| 摘要 |
The cable support block has an arcuate frame having two spaced-apart legs defining an opening therebetween with an elongated coil spring bridging the opening in its unstressed, closed position, the coil spring being attached at its first end to a single one of the frame legs. The upper portion of the frame defines a yoke allowing the support block to rest on an upper cable spacedly supported over ground. The lower portion of the frame rotatably carries an idle roller on which a lower cable being installed or stringed can rest. To insert a cable into the arcuate frame, the cable is forcibly abutted against the coil spring which will resiliently yield to allow access into the arcuate frame by being inwardly deformed. A shoulder is located on the frame leg opposite the one where the coil spring is attached. The shoulder prevents accidental release of the cables trapped inside the arcuate frame by preventing outward displacement of the coil spring second end portion. The coil spring second end portion may alternately be resiliently moved around the shoulder, to allow outward deformation of the coil spring, so that the cables located inside the arcuate frame may be retrieved from therein. The support block is especially useful in combination with a telescopic pole, which allows distal handling of the support block from ground level for installation and removal thereof.
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