Tool driving or impacting – Impacting devices – With anvil arranged to transmit torsional impact to tool
Patent
1999-06-10
2000-02-15
Smith, Scott A.
Tool driving or impacting
Impacting devices
With anvil arranged to transmit torsional impact to tool
173 93, B23Q 500
Patent
active
060241802
ABSTRACT:
A cage device includes front and rear end plates respectively provided with front and rear major walls, and spaced apart from each other in a longitudinal direction. The rear major wall is in a splined connection with and driven by a drive output shaft of an air motor, and is formed with a pair of first pin holes which are diametrically spaced apart from each other. The front major wall is formed with an inserting hole for sleeving rotatably on a power output shaft, and a pair of second pin holes which are diametrically spaced apart from each other relative to the inserting hole. Opposite tilt and limit pins are provided with two first secured ends and two second secured ends respectively to be inserted into and in tight connection with, in the longitudinal direction, the first and second pin holes so as to define a space therein. The space can accommodate an impact receiving anvil jaw on the power output shaft and an annular hammer member such that the tilt and limit pins are received in a longitudinal groove and a limiting notch of the hammer member. As such, the problem of forming elongate slots in the cage device can be obviated.
REFERENCES:
patent: 3144108 (1964-08-01), Reynolds
patent: 3321043 (1967-05-01), Vaughn
patent: 3533479 (1970-10-01), Madsen et al.
patent: 5435398 (1995-07-01), Juan
patent: 5887666 (1999-03-01), Chen et al.
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