| 摘要 |
An apparatus and method for fastening a wood panel to a high structural strength steel frame member using self-drilling, self-tapping screws. An electrically powered rotary driver with an attached screw driver bit is carried by a pneumatically-powered telescoping driver support/fastener-positioning unit that includes a fastener positioning plate, telescoping members attached to the fastener positioning plate, and a pair of foot plates for the operator to stand on whereby to hold the apparatus down during a screw-driving operation. The driver and the driver support/fastener-positioning unit are controlled by an electro/pneumatic system. The method implemented by that system comprises retracting the driver support/fastener positioning unit so as force the screw driver bit to engage in the positioning plate, operating the driver as the telescoping members are retracted so that the screw driver bit will cause the engaged fastener to drill in turn through the wood panel and the steel frame member and form a screw connection with the steel frame member, and then turning off the driver and re-extending the telescoping members so as disengage the screw driver bit from the driven fastener, ready for a new screw-driving operation. |
