US 12,246,427 B2
Power tool having a hammer mechanism
Yoshitaka Machida, Anjo (JP); and Kazuki Nakagawa, Anjo (JP)
Assigned to MAKITA CORPORATION, Anjo (JP)
Filed by MAKITA CORPORATION, Anjo (JP)
Filed on Feb. 9, 2022, as Appl. No. 17/667,889.
Claims priority of application No. 2021-026285 (JP), filed on Feb. 22, 2021.
Prior Publication US 2022/0266433 A1, Aug. 25, 2022
Int. Cl. B25D 17/04 (2006.01); B25D 16/00 (2006.01)
CPC B25D 17/043 (2013.01) [B25D 16/006 (2013.01); B25D 2211/068 (2013.01); B25D 2216/0084 (2013.01); B25D 2217/0073 (2013.01); B25D 2250/121 (2013.01); B25D 2250/375 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A power tool comprising:
a final output shaft configured to removably hold a tool accessory and defining a driving axis of the tool accessory;
a motor having a rotation axis extending in parallel to the driving axis;
a driving mechanism configured to perform at least a hammering operation of linearly reciprocally driving the tool accessory along the driving axis by using power from the motor;
a housing accommodating the motor:
a handle including a first part disposed radially outside of the housing with respect the rotation axis and extending in an axial direction of the rotation axis, and a second part extending in a direction crossing the first part, the handle being configured to be movable relative to the housing in the axial direction;
a biasing member configured to bias the handle in a direction away from the final output shaft in the axial direction;
at least one guiding member disposed between the housing and the first part of the handle so as to extend in the axial direction, the at least one guiding member being configured to slidably guide relative movement between the handle and the housing; and
at least one elastic member disposed between the at least one guiding member and one of the housing and the first part, wherein:
the other of the housing and the first part is configured to be movable relative to the at least one of guiding member in the axial direction through sliding movement without interference of the at least one elastic member, and
the at least one guiding member is disposed so as to be movable relative to the housing or the handle in a crossing direction that crosses the axial direction by elastic deformation of the at least one elastic member in the crossing direction.