Driving tool
AssigneeMakita Corporation
InventorsKiyonobu Yoshikane, Toshiya Murakami
Life of this patent
Estimating the term…
Abstract
A driving tool includes a driver, and a piston connected to the driver. The piston and the driver are housed within a cylinder such that the piston slidably moves within the cylinder by gas active pressure. The cylinder is positioned in an adjoining arear of an axis line of the piston. The cylinder is made of iron. Accordingly, a weight in the adjoining arear of the axis line of the piston is more than a cylinder made of aluminum or resin. Because of the large weight in the adjoining area of the axis line of the piston, a reaction force against a movement of the piston and a driving of the driver can be effectively restrained.
Claims18
A driving tool comprising:
- a driver that drives a driving member in a driving direction;
- a piston connected to the driver;
- a cylinder configured to house the driver and the piston, the piston configured to be slidably movable within the cylinder;
- a tubular-shaped housing configured to house the cylinder and extend in a longitudinal direction of the cylinder;
- and
- a weight member arranged inside the housing,
- wherein the weight member is fixedly arranged in a portion of a space surrounding on an outer circumference of the cylinder, within a range where the cylinder extends along the longitudinal direction of the cylinder.
A driving tool comprising:
- a driver that drives a driving member in a driving direction;
- a piston connected to the driver;
- a cylinder configured to house the driver and the piston, the piston configured to be slidably movable within the cylinder;
- a tubular-shaped housing configured to house the cylinder and extend in a longitudinal direction of the cylinder;
- and
- a weight member arranged inside the housing and formed in an approximately L shape in cross section by bending a sheet metal,
- wherein the weight member includes a front portion, a left portion, and a bending portion that connects the front portion to the left portion such that the front portion, the left portion, and the bending portion are continuously formed.
Dependencies are inferred from the claim text.