Machine element or mechanism – Gearing – Interchangeably locked
Patent
1987-03-09
1989-03-14
Braun, Leslie A.
Machine element or mechanism
Gearing
Interchangeably locked
192 7, F16H 310
Patent
active
048116556
ABSTRACT:
Motor vehicle gearbox, comprising a housing with at least one input shaft and at least one intermediate shaft having a gear engaged with a gear on the output shaft. At least one gear of each pair of mutually engaging gears is releasable from its shaft. An over-running clutch is coupled between a releasable gear for a gear speed, preferably the releasable gear for the lowest gear speed, for driving forward and the housing and is arranged to prevent that gear from having substantial rotation in a direction opposite to the direction of rotation for driving forward. However, provision is made for a very limited rotation of that gear in that opposite direction. For this purpose, the over-running clutch has an outer ring, an inner ring fixed to the releasable gear for the gear speed in question for driving forward, and blocking members arranged between the rings which permit rotation of the inner ring only in the direction for driving forward. The outer ring has at least one projection with projects into a peripheral cavity in a sleeve element fixed to the housing; and the play of this projection in the cavity permits very limited rotation of the outer ring relative to the housing. The outer ring is spring-urged in the releasing direction of the over-running clutch.
REFERENCES:
patent: 2888116 (1959-05-01), Troendly et al.
patent: 4106358 (1978-08-01), Morrison
patent: 4116082 (1978-09-01), Kelbel
patent: 4461188 (1984-07-01), Fisher
patent: 4565106 (1986-01-01), Sumiyoshi
patent: 4646890 (1987-03-01), Yamada et al.
AB Volvo
Braun Leslie A.
Diehl Dwight G.
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