Hedge trimmer with a dual gear setting
US11185015B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 2015 |
| Grant date | Nov 30, 2021 |
| Priority date | — |
| Expiry date | Dec 21, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16H2200/2082
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A hedge trimmer comprises: a drive motor (30, 130) disposed in a casing (21, 121); a gear mechanism disposed in the casing (21, 121) and connected to the drive motor (30, 130); and a blade arrangement having at least one cutter bar (20, 120). The at least one cutter bar (20, 120) is driven in a reciprocating manner in a longitudinal direction of the blade arrangement by the drive motor (30, 130) via the gear mechanism. The gear mechanism contains at least a first gear setting and a second gear setting producing two different gear-ratios, such that the at least one cutter bar (20, 120) is adapted to be driven at a first speed and torque using the first gear setting, and a second speed and torque different from the first speed and torque using the second gear setting. By providing two different trimming output modes, the hedge trimmer may provide either a high-speed/small-torque trimming capability or a low-speed/large-torque trimming capability to accommodate requirements under different operation circumstances.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.