公开(公告)号：US20210129307A1

公开(公告)日：2021-05-06

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

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.

公开(公告)号：US20230241752A1

公开(公告)日：2023-08-03

申请号：US18152883

申请日：2023-01-11

Applicant: MAKITA CORPORATION

Inventor： Masahiro MAEGAWA ,  Kiyonobu YOSHIKANE ,  Kazuki NAKAGAWA ,  Yuzuru NISHIO

IPC: B25D17/24 ,  B25D17/04

CPC classification number: B25D17/24 ,  B25D17/04 ,  B25D2250/041 ,  B25D2250/095 ,  B25D2250/121

Abstract: A power tool having a hammer mechanism includes a first housing, a motor housed in the first housing, a second housing that at least partially covers the first housing, and a controller housed in the second housing. The second housing is coupled to the first housing via at least one elastic member to be movable relative to the first housing in a first direction that is parallel to the driving axis. The second housing has at least one opening for wiring. The at least one opening communicatively connects an inside and an outside of the second housing. At least one electric wire extends from the controller to the outside of the second housing through the at least one opening.