Power actuated tools with magazine feed

摘要

A power actuated tool for driving a fastener such as a pin or nail into a substrate, has a fastener guide mounted at the forward end of a body of the tool for displacement axially inwardly relative to the body when the forward end of the tool is pressed against a substrate whereby to permit firing of the tool. A magazine carried by the tool for containing a plurality of fasteners mounted seriatim on segments of a carrier strip advances the leading end of the carrier strip and the fastener carried thereby into the fastener guide. A locking system for impeding firing of the tool is releasable in response to the presence of a fastener and associated segment of the carrier strip within the fastener guide whereby to permit firing of the tool only when a fastener is present within the fastener guide. The locking system thereby acts to prevent firing of the tool when the magazine is empty of fasteners and which could otherwise lead to damage occurring to the tool.