Arrangement for fastening a circular saw blade on a trunnion axi

Details Arrangement for fastening a circular saw blade on a trunnion axi Arrangement for fastening a circular saw blade on a trunnion axi

1980-09-19

1982-08-10

Yost, Frank T.

Cutting

Means to drive or to guide tool

With transmission yieldable on overload

83666, 83698, B23D 6102, B27B 532

Patent

active

043432140

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 the screw not be screwed onto the threaded bore.

REFERENCES:
patent: 51478 (1865-12-01), Rand
patent: 335336 (1886-02-01), Byrkit
patent: 1286799 (1918-12-01), Schuler et al.
patent: 2854042 (1958-09-01), Robinson
patent: 4205572 (1980-06-01), Weiner

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