| 摘要 |
An apparatus for driving fasteners, drills, bits, and similar insertable objects into ceilings, trusses, and other remote structures, comprises a drive head mounted on one end of an elongate support. The drive head has a retainer for holding a fastener or bit, and is powered by a rotary drill, impact motor, or the like, which drives the fastener/bit into the object structure. A clamping arm is mounted at the upper end of the support, and is positioned to converge and diverge with the drive head. The drive head motor and clamp arm are controlled from the lower end of the support, whereby during operation, the clamping arm abuts the object structure at a side thereof opposite from the drive head and is converged with the drive head to apply tip pressure to the fastener/bit and resist reaction forces developed therebetween.
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