公开(公告)号：US11845168B2

公开(公告)日：2023-12-19

申请号：US17074673

申请日：2020-10-20

Applicant: MAKITA CORPORATION

Inventor： Hideki Tsuji ,  Hajime Takeuchi ,  Kei Watanabe ,  Kazuo Muramatsu ,  Masahiro Maegawa

IPC: B25D11/12 ,  B25D17/04 ,  B25D17/24 ,  B25D11/04

CPC classification number: B25D11/12 ,  B25D17/04 ,  B25D17/24 ,  B25D11/04 ,  B25D2217/0003 ,  B25D2250/095

Abstract: A reciprocating tool includes a motor, a driving mechanism, a body housing, a movable part, and a vibration control mechanism. The driving mechanism includes a reciprocating member configured to reciprocate in a first direction. The movable part is connected to the body housing via a first elastic member and a second elastic member to be relatively movable in the first direction. The vibration control mechanism includes at least one weight configured to move in a direction opposite to the reciprocating member. The center of gravity of the at least one weight is offset from the driving axis in a second direction. In the second direction, the first elastic member is closer to the center of gravity than the second elastic member. A load of the first elastic member when the movable part is placed in a closer position is smaller than a load of the second elastic member.