US 12,403,576 B2
Jam shock relief mechanism for gas spring fastening tool
Peter Wierzchon, Morton Grove, IL (US); and Craig Barrett, Schaumburg, IL (US)
Filed by Robert Bosch GmbH, Stuttgart (DE)
Filed on Dec. 12, 2023, as Appl. No. 18/536,723.
Prior Publication US 2025/0187159 A1, Jun. 12, 2025
Int. Cl. B25C 1/06 (2006.01); B25C 1/04 (2006.01)
CPC B25C 1/047 (2013.01) [B25C 1/06 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A power tool, comprising:
an air spring cylinder;
a piston movably positioned within the air spring cylinder along a longitudinal axis of the air spring cylinder;
a driver blade fixedly attached to the piston;
a lifter that is attached to the piston via an elastic member;
a lifter gear including a lifter gear wheel portion, and a plurality of teeth extending radially from the lifter gear wheel portion and configured to engage the lifter;
a motor including a motor output; and
a hub including a first end operably connected to the motor output and a second end including a hub wheel portion that is fixed to the lifter gear whereby the motor is configured to lift the lifter via the lifter gear.