Pruning cutter
US5718050A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 1996 |
| Grant date | Feb 17, 1998 |
| Priority date | — |
| Expiry date | Mar 8, 2016 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B63/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A powered pruning saw is disclosed in which a drive motor is connected to an elongated drive shaft rotatably held within an shaft or pole. A gear head is mounted at the other end of the pole to the remote end of the drive shaft. The gear head includes a gear housing formed of two housing halves, with a pinion rotatably mounted by a pinion bearing within the gear housing for coaxial rotation with the drive shaft. The pinion shaft mounts the pinion at one end and a drive shaft receiver at a remaining end for releasably receiving an end of the drive shaft. A cutter arbor shaft is also rotatably mounted in the gear head, and mounts a gear in meshing engagement with the pinion. A cutter arbor shaft bearing mounts the cutter arbor shaft and gear for rotation about a cutter arbor shaft axis that is angularly offset from the drive shaft axis. A cutter is releasably attached to the cutter arbor shaft. The gear housing halves are joined along a plane normal to the cutter arbor shaft axis and include journal boxes formed therein for receiving and clamping the pinion bearing. Clamp members join and fasten the housing halves together with clamping forces substantially parallel to the arbor shaf…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.