Machine element or mechanism – Gearing – Interchangeably locked
Patent
1989-12-26
1991-06-04
Herrmann, Allan D.
Machine element or mechanism
Gearing
Interchangeably locked
384453, 384605, 384610, F16H 308
Patent
active
050203851
ABSTRACT:
A motor-vehicle transmission has a housing extending along an axis and having axially spaced front and rear sides, a main input shaft centered on the axis and having a front end at the front housing side and a rear end spaced axially backward therefrom, a main output shaft centered on the axis and having a front end at the input-shaft rear end and a rear end at the rear housing side, and a secondary countershaft adjacent the input and output shafts and having front and rear ends respectively at the front and rear housing sides. A cylindrical-roller bearing supports the output-shaft front end on the input-shaft rear end for rotation therein and prevents relative radial movement but permits relative axial movement of the input-shaft rear end and output-shaft front end. Roller-type axial-thrust bearings support the input-shaft front end, the output-shaft rear end, and one of the ends of the countershaft on the housing. A main support element braced axially rearward against the output-shaft front end and the input-shaft rear end is rotationally coupled to one of the main shafts and a main spring braced between the one main shaft and the support element urges same axially against the other main shaft. A secondary support element braced axially between the other end of the countershaft and the housing is carried in another axial-thrust bearing on the housing and is rotationally coupled to the countershaft. A secondary spring braced between the countershaft and the secondary support element urges same axially apart.
REFERENCES:
patent: 2334002 (1943-11-01), Heintz et al.
patent: 2352469 (1944-06-01), Carlson
patent: 3261222 (1966-07-01), Freshman et al.
Dubno Herbert
Herrmann Allan D.
Massey Ryan W.
Wilford Andrew
Zahnradfabrik Friedrichshafen AG
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