Arrangement for fastening a circular saw blade on a trunnion axially projecting from a drive shaft
US4343214A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1980 |
| Grant date | Aug 10, 1982 |
| Priority date | — |
| Expiry date | Sep 19, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/9464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An arrangement for frictionally coupling a saw blade to a trunnion projecting from one end of a drive shaft and permitting rotation of the saw blade relative to the trunnion upon excessive strain on the saw blade, in which the saw blade can be mounted only in a correct way in accordance with the direction of rotation of the drive shaft on the trunnion. The saw blade is frictionally held between two annular clamping elements on the trunnion. One of the annular clamping elements abuts against a shoulder formed at the junction of the drive shaft and trunnion and the other abuts directly or under the imposition of a pressure ring against the head of a screw screwed into an axial bore extending from the end face of the trunnion into the latter. The saw blade has an axial projection and the annular clamping element on the side of this projection is constructed in such a manner that the saw blade, without being hindered by the projection, may abut against this clamping element and turn relative thereto. The axial projection holds at the wrong mounting of the saw blade on the trunnion the various elements so far apart that one of the clamping elements cannot be pushed onto the trunnion or …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.