Rotary coupling head using cutting blades and cutting devices comprising such a coupling head
US9271442B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 18, 2011 |
| Grant date | Mar 1, 2016 |
| Priority date | — |
| Expiry date | Apr 3, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01D34/90
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A rotary coupling head for use with a portable cutting device has a blade-supporting housing, an axial motor drive shaft connected to the blade-supporting housing so as to be rotatable with the blade-supporting housing, an interchangeable cutting blade mounted on the blade-supporting housing so as to rotate with the rotation of the blade-supporting housing. The cutting blade is engaged around the drive shaft such that the cutting blade and the housing are axially displaceable along the drive shaft. A coupler on the housing is automatically actuated upon the axial displacement of the cutting blade and the housing on the drive shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.