Locking device for reverse gear of a motor vehicle transmission, especially for an automobile
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorGyozo Kuzma
Life of this patent
Estimating the term…
Abstract
A locking device for a motor vehicle transmission which includes a friction ring brought into frictional engagement with a gear wheel when engaging a reverse gear. The friction ring cooperates with a dog which is spring-loaded in an axial direction. The dog selectively displaces locking elements into a locking position for preventing engagement of the gear wheel. The friction ring is disposed non-rotatably and slidably on a driven shaft of the transmission between the gear wheel and the dog with the gear wheel being freely rotatable with respect to the driven shaft and adapted to be coupled to the driven shaft. The dog is disposed coaxially with respect to the driven shaft on integral portions of the transmission housing.
Claims9
A locking device for a reverse speed of a motor vehicle transmission, especially an automobile, the transmission including a transmission housing, a driven shaft, a friction ring adapted to be brought into frictional engagement with a reverse gear wheel when shifting into a reverse speed, the friction ring cooperating with a dog which is spring-loaded in an axial direction, the dog selectively displacing locking elements into a locking position for preventing engagement of the reverse gear wheel during predetermined operating conditions of the transmission, characterized in that the friction ring is non-rotatably and slidably mounted on the driven shaft between the gear wheel and the dog, the gear wheel is freely rotatably mounted on the driven shaft and is adapted to be selectively coupled thereto, and in that the dog is arranged on portions of the transmission housing so as to be coaxial with respect to the driven shaft.
Dependencies are inferred from the claim text.