Invention Grant
- Patent Title: Chainsaw
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Application No.: US16880574Application Date: 2020-05-21
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Publication No.: US11446841B2Publication Date: 2022-09-20
- Inventor: Hideki Kachi , Koji Haneda , Tsunahisa Nakamura
- Applicant: MAKITA CORPORATION
- Applicant Address: JP Aichi
- Assignee: MAKITA CORPORATION
- Current Assignee: MAKITA CORPORATION
- Current Assignee Address: JP Aichi
- Agency: Sughrue Mion, PLLC
- Priority: JP2015-139810 20150713
- Main IPC: B27G19/00
- IPC: B27G19/00 ; F16P3/20 ; B27B17/00 ; B27B17/02

Abstract:
A chainsaw includes a handle with a handgrip; an electric motor for endlessly moving a saw chain; a control unit for controlling rotation of the motor; and a main power switch switchable between an ON state and an OFF state. The handgrip is provided with a gripping detection device for detecting whether the handgrip is gripped by the worker, and the chainsaw is configured to, when the control unit is manipulated to deactivate the electric motor in a state in which the gripping detection device detects that the handgrip is gripped, maintain the main power switch in the ON state, and to, when the control unit is manipulated to deactivate the electric motor in a state in which the gripping detection device detects that the handgrip is not gripped, switch the main power switch to the OFF state.
Public/Granted literature
- US20200282590A1 CHAINSAW Public/Granted day:2020-09-10
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