APPARATUS FOR INSTALLING FASTENERS AND EXPLOSIVE LOADS FOR USE THEREWITH

摘要

An improved tool for installing an explosively driven fastener as well as an improved explosively driven fastener for use therewith are disclosed. The fastener includes a nail having a head with an explosive load attached thereto in a plastic cap that includes a buffer. The tool has a plurality of concentric cylinders and springs including a muzzle for receiving the fastener head and explosive load. A spring actuated firing pin ignites the load causing it to explode and drive the nail out of the tool. The explosion also automatically resets the tool. The tool and the fastener provide many advantages over existing explosively driven fasteners and the tools used to install them.

主权项

1. A tool for installing an explosively driven fastener, the fastener including a nail and an explosive load attached to the nail, said tool comprising: a trigger body; a firing pin holder located within said trigger body; a firing spring coupled to said firing pin holder and arranged to bias said firing pin holder out of said trigger body; a firing pin coupled to said firing pin holder; a first muzzle having a proximal end and a distal end, said proximal end arranged to receive said firing pin and said distal end arranged to receive the fastener; a reset sleeve coaxially mounted within said trigger body; a reset spring biasing said reset sleeve away from said trigger body; a firing pin assembly guide extending into said trigger body, said reset sleeve and said first muzzle; said firing pin assembly guide having an outer flange; said reset sleeve having an inner flange engageable by said outer flange; said firing pin assembly guide has a relatively large diameter part which extends into said trigger body and said reset sleeve, and a relatively small diameter part which extends into said first muzzle.