Power tool trigger assembly
US6736220B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 22, 2003 |
| Grant date | May 18, 2004 |
| Priority date | — |
| Expiry date | May 22, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2009/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A trigger assembly for controlling an electric power tool including a motor comprises a base for fixing within the power tool and a trigger supported by the base for inward and outward movement. The base has a housing, a first mechanical switch provided in the housing and operable to switch on and off the motor, and an electronic operating circuitry provided in the housing for controlling the operation of the motor when the first switch is closed. The base includes a slider guided within the housing for movement by the trigger to operate the first switch and the operating circuitry. Also included is a second mechanical switch provided within the housing and operable in response to the movement of the trigger to switch on and off an auxiliary device for the power tool. The auxiliary device is located externally of the base and is operable independently of the operating circuitry.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.