| CPC B25D 11/06 (2013.01) [B25C 1/06 (2013.01)] | 23 Claims |
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1. A lifter for use in a fastener driving machine, said lifter comprising:
a lifter shaft including a first end and a second end, and exhibiting a longitudinal axis that extends between said first end and said second end;
a linear actuator that is positioned proximal to said first end of the lifter shaft;
a rotatable lifter subassembly, including:
a holder that is positioned proximal to said linear actuator, said holder exhibiting a second plurality of openings;
at least one guide that is positioned proximal to said holder, said at least one guide exhibiting a first plurality of openings;
at least one return spring that provides a force in a direction that is substantially parallel to the longitudinal axis of said lifter shaft;
a plurality of lifter pins that are seated in said second plurality of openings and that are movable in a direction substantially parallel to said longitudinal axis; and
a plurality of lifter pin springs that bias each of said lifter pins in said direction that is substantially parallel to said longitudinal axis; and
a driver having a path of movement that is substantially perpendicular to said lifter longitudinal axis, said driver including a plurality of driver protrusions along at least one longitudinal edge of the driver, said driver being positioned proximal to said rotatable lifter subassembly.
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