Power tool direction selector
US10781917B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2018 |
| Grant date | Sep 22, 2020 |
| Priority date | — |
| Expiry date | Mar 20, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2061/243
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A power tool includes a button useful to select a direction of rotation of the power tool. The button can be used to select between forward, reverse, and neutral. The power tool includes a housing which is coupled with an abutment structure which engages with the button. A sawtooth engagement is formed between the abutment structure and the button. The sawtooth engagement can be asymmetric in shape to provide different force vectors depending on whether the button is pushed in a first or a second direction. The sum of the resistive forces can be the same whether the button is pushed in the first or second direction, owing to the asymmetric forces caused by the sawtooth engagement which make up for differences in other internal resistive forces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.