公开(公告)号：US20250063992A1

公开(公告)日：2025-02-27

申请号：US18810048

申请日：2024-08-20

Applicant: MAKITA CORPORATION

Inventor： Ryo Sunazuka

IPC: A01G3/053 ,  B26B19/38

Abstract: A working machine may include a first working machine part, a second working machine part, and a vibration damping member positioned between them. The vibration damping member may include a first mount portion configured to be attached to a first mount element disposed on one of the first working machine part and the second working machine part, a second mount portion offset in a first direction from the first mount portion and configured to be attached to a second mount element disposed on the other of the first working machine part and the second working machine part, a first connection portion connecting the first mount portion to the second mount portion, and a first recessed groove defined in a portion of an outer surface of the vibration damping member that corresponds to an outer surface of the first connection portion.

公开(公告)号：US09950416B2

公开(公告)日：2018-04-24

申请号：US14784797

申请日：2014-04-16

Applicant: MAKITA CORPORATION

Inventor： Tomoyuki Kutsuna ,  Ryo Sunazuka ,  Yoshitaka Machida ,  Masahiro Ito

IPC: B25F5/00 ,  B25D17/04 ,  B25F5/02 ,  B25D17/24

CPC classification number: B25D17/043 ,  B25D17/24 ,  B25D2222/57 ,  B25F5/006 ,  B25F5/02 ,  B25F5/026

Abstract: To provide a handle that is effective at achieving both vibration resistance and usability. A handle attached to a tool body of a power tool has: a grip portion; a connecting portion that connects to the tool body; elastic element interposing regions that are formed between the grip portion and the connecting portion; elastic elements disposed in the elastic element interposing regions; a powder filling region formed between the grip portion and connecting portion; and a plurality of powder bodies that fill the powder filling region.

公开(公告)号：US11833656B2

公开(公告)日：2023-12-05

申请号：US17551478

申请日：2021-12-15

Applicant: MAKITA CORPORATION

Inventor： Kohei Oishi ,  Ryo Sunazuka ,  Yoshifumi Watanabe

IPC: B27B17/08 ,  B27B17/02 ,  B27B17/12 ,  B25F5/00

CPC classification number: B25F5/008 ,  B27B17/02 ,  B27B17/08 ,  B27B17/12

Abstract: A chain saw may include a saw chain, a guide bar to which the saw chain is attached, a sprocket configured to run the saw chain along a periphery of the guide bar, a prime mover configured to rotate the sprocket, an oil tank configured to store oil to be supplied to the saw chain, a housing that houses the prime mover and the oil tank, a bolt protruding from the housing and penetrating a hole disposed in the guide bar, a nut screwed onto the bolt to fix the guide bar to the housing, and a heat dissipating structure configured to dissipate heat from the bolt to the oil in the oil tank.

公开(公告)号：US11464171B2

公开(公告)日：2022-10-11

申请号：US17123618

申请日：2020-12-16

Applicant: Makita Corporation

Inventor： Ryo Sunazuka

IPC: A01G3/053 ,  F16H25/14 ,  A01G3/04

Abstract: A gardening trimmer may include: a first blade connected to a first cam member and configured to reciprocate in response to rotation of the first cam member; and a second com connected to a second cam member and configured to reciprocate in opposite phase to the first blade in response to rotation of the second cam member. The first cam member includes a first eccentric cam configured to revolve around a first rotation axis and is connected to the first blade at the first eccentric cam. The second cam member includes a second eccentric cam configured to revolve around a second rotation axis and is connected to the second blade at the second eccentric cam. Each of the first and second blades is configured to reciprocate along a plane including the first and second rotation axis.