Reverse gear assembly of a transmission

Details Reverse gear assembly of a transmission Reverse gear assembly of a transmission

1998-10-27

1999-11-16

Wright, Dirk

Machine element or mechanism

Gearing

Interchangeably locked

74342, 74462, F16H 5700

Patent

active

059837411

ABSTRACT:
A manual transmission for use in motor vehicles is disclosed. The transmission includes an input shaft, an output shaft, and a plurality of constant-mesh gearsets that can be selectively engaged for establishing corresponding forward gears therebetween. In addition, a reverse gear assembly is provided for establishing the reverse gear. The reverse gear assembly includes an idler shaft non-rotatably mounted within a housing of the transmission and an idler gear journally supported on the idler shaft. The idler gear is linearly movable into engagement with a reverse input gear and a reverse speed gear. Each tooth of the reverse idler gear includes a pair of intersecting flank radii which intersect at the tooth centerline, creating an included angle therebetween. The teeth of the input and output gears are similarly formed to include a pair of flank radii and included angles. The reverse speed gear preferably includes a "pointing step-back" design which allows a single idler gear tooth to control final engagement.

REFERENCES:
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patent: 5083993 (1992-01-01), Oun
patent: 5722291 (1998-03-01), Fraley et al.
patent: 5785162 (1998-06-01), Barksdale

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