B - Operations – Transporting – 23 – B
Patent
B - Operations, Transporting
23
B
B23B 45/16 (2006.01) B25C 1/00 (2006.01) B25C 1/08 (2006.01)
Patent
CA 2111752
In a fastener-driving tool, a primary structure, an intermediate structure, and a secondary structure are movable separately along a tool axis. The primary structure is biased to a tool-disabling position, movable along the tool axis to a tool-enabling position, and engaged by an upper end of the intermediate structure. The secondary structure has a lower end to be firmly pressed against a workpiece. A bolt is threaded adjustably into an axial socket of the intermediate structure. A spring disposed around the bolt shank, between the bolt head and a flange on the secondary structure, biases the intermediate structure in one direction. The bolt head has flat surfaces, one of which is engaged by a tab on another flange on the secondary structure to prevent bolt rotation unless the secondary structure is moved against the spring bias, whereupon the bolt can be then rotated.
Finlayson & Singlehurst
Illinois Tool Works Inc.
LandOfFree
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