Drive assembly for hair trimmers
US9242385B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2013 |
| Grant date | Jan 26, 2016 |
| Priority date | — |
| Expiry date | Mar 18, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B19/3846
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A hair trimmer has a base housing and a blade set having a stationary blade and a reciprocating blade. The base housing has a blade set support at one end. The support has a pair of spaced blade set support projections. A cam follower has spaced spring retainers near a bottom of the cam follower, and spaced spring end catches near an upper edge of the cam follower. A spring has elongated legs and a tension arm. The elongated legs extend under the spring retainers and into the spring end catches in the cam follower. A spring tensioner is secured in the base housing by a latch that engages a tensioner catch. The spring tensioner secures the tension arm so that the spring is under tension.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.