Patent ID: 9302381
Filing Date: 2016-04-05
CPC Classification: B25C

Claim Text:
1. A driving tool comprising: a driver provided to be slidable toward a nozzle formed in a leading end of the tool and adapted to drive out a fastener from the nozzle; a plunger adapted to be connected with the driver; a plunger biasing member adapted to bias the plunger toward the nozzle; a balancer provided to be slidable toward the nozzle; a balancer biasing member adapted to bias the balancer in a direction away from the nozzle; a drive mechanism adapted to drive the plunger in the direction away from the nozzle against a biasing force of the plunger biasing member and to release the plunger located in a position away from the nozzle so that the driver moves toward the nozzle by the biasing force of the plunger biasing member and drives the fastener; a string-shaped member that connects the balancer and the plunger to each other; and a direction changing portion adapted to change a direction of a force applied to the string-shaped member, wherein the balancer is adapted to be pulled by the string-shaped member in a state of tension, and to move toward the nozzle when the plunger moves in the direction away from the nozzle, and the balancer is also adapted to move in the direction away from the nozzle by the biasing force of the balancer biasing member when the plunger is released and moves toward the nozzle, and the string-shaped member is in a relaxed state, and wherein the balancer biasing member is connected by the string-shaped member in the relaxed state with the plunger biasing member when the plunger is released and the plunger moves toward the nozzle.