OPENTECHNICAL PUBLICATION
OT-2026-000000332

Lifter assembly for a powered fastener driver

Published: 2026-09-15T19:02:45.534926Z
Permanent URL: https://opentechnical.org/p/OT-2026-000000332
Categories: Tools & Tooling > Fastening Tools

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ABSTRACT

A powered fastener driver includes a driver blade movable from a
top-dead-center (TDC) position toward a driven or bottom-dead-center (BDC)
position for driving a fastener into a workpiece, a gas spring mechanism for
driving the driver blade toward the BDC position, and a lifter assembly having
a rotary lifter for returning the driver blade from the BDC position toward
the TDC position. The powered fastener driver further includes an arm upon
which the rotary lifter is supported, a motor which, in a first position of
the rotary lifter, provides torque to the rotary lifter to return the driver
blade from the BDC position toward the TDC position, and a brake mechanism
including an electromagnet which, when activated, causes the rotary lifter to
move from the first position toward a second position in which the rotary
lifter is not engageable with the driver blade.

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OpenTechnical publication OT-2026-000000332
Published 2026-09-15T19:02:45.534926Z
https://opentechnical.org/p/OT-2026-000000332