Patent ID: 9744657
Date: 2017-08-29
CPC Classifications: B25C

Claim:
1. A power tool comprising: a structure; a flywheel coupled to the structure; a driver that is translatable along a driver axis; and an activation arm assembly having an actuator having an actuation axis generally parallel to the driver axis, the actuator being coupled to the activation arm assembly, the activation arm assembly being coupled to the structure and including a roller assembly having a first roller and a second roller, wherein actuation of the actuator causes the roller assembly to translate toward and engage the driver to initiate driving engagement between the driver and the flywheel, wherein the activation arm assembly further includes a carriage, the carriage being fixedly coupled to the structure, the actuator being mounted on the carriage, wherein the activation arm assembly further includes a first axle and a second axle, the first axle being received through a pivot slot formed in the carriage, the first axle and the second axle being coupled to the roller assembly, the first roller being mounted on the first axle and the second roller being mounted on the second axle, wherein the activation arm assembly further includes a follower arm that engages the first roller, the follower arm including a first mounting portion and a second mounting portion, the second mounting portion being pivotally coupled to the actuator and slidingly engaged with the carriage, the first mounting portion being biased in a direction toward the driver, and wherein the follower arm has a non-linear profile including: