Noiseless shifting apparatus for a transmission reverse gear
AssigneeVolkswagenwerk Aktiengesellschaft
InventorsKarl Ashauer, Fritz Blumenstein
Life of this patent
Estimating the term…
Abstract
Apparatus for synchronously shifting the reverse gear of a speed-changing transmission, such as an automobile transmission, includes an axially displaceable reverse shift gear which is rotatably mounted on a stationary shaft and cooperates (meshes) with a first gear on a first transmission shaft and a second, wider gear on a second transmission shaft. The reverse shift gear has a synchronizing device, provided with synchronizing cones and locking components, which becomes operative to brake the reverse shift gear with respect to a stationary element when the shift gear is axially displaced.
Claims8
A speed changing transmission, in particular a motor vehicle transmission, comprising:
- (a) a first gear arranged on a first transmission shaft;
- (b) a second gear arranged on a second transmission shaft, said second gear being wider than said first gear;
- (c) a third gear rotatably mounted on a third shaft, said third gear being axially displaceable and arranged to engage said first and second gears, said third gear having synchronizing means including:
- (1) a sleeve, arranged concentrically with said third shaft and fixed in its axial and circumferential directions, said sleeve having an inner cone;
- (2) a braking ring rotatably mounted within said sleeve and having an outer cone cooperating with the inner cone of said sleeve;
- and
- (3) locking means, arranged on said third gear and said braking ring, for braking said third gear when it is shifted into the engaged position;
- whereby said third gear is a reverse gear of said transmission which may be noiselessly engaged with said first and second gears.
Dependencies are inferred from the claim text.