Synchronizing arrangement with torque lock feature
AssigneeBorg-Warner Automotive, Inc.
InventorCharles E. Johnson, Jr.
Life of this patent
Estimating the term…
Abstract
A gear transmission has a synchronizing arrangement associated with a helical gear that has end play. The synchronizing arrangement includes a shift sleeve having internal splines engageable with external teeth of a clutch gear that is an integral part of the helical gear. A torque lock feature is provided by cooperating back tapered torque lock surfaces of the splines and the external teeth of the clutch gear. The internal splines of the shift sleeve and the external teeth of the clutch gear are shaped to accommodate the end play of the helical gear and reduce variation in engagement of the torque lock surfaces.
Claims14
A synchronizing arrangement for use with helical gears comprising a shift sleeve having teeth, a clutch gear having teeth engageable with the teeth of the shift sleeve and a torque lock that includes torque lock surfaces on each side of the teeth of the shift sleeve engaging cooperating torque lock surfaces on each side of the teeth of the clutch gear characterized in that the torque lock surfaces on one side of the teeth of the clutch gear or the shift sleeve are axially displaced from the torque lock surfaces on the opposite side of the aforesaid teeth of the clutch gear or the shift sleeve.
A synchronizing arrangement for use with helical gears having end play comprising a shift sleeve having teeth, a clutch gear having teeth engageable with the teeth of the shift sleeve and a torque lock that includes back tapered torque lock surfaces on each side of the teeth of the shift sleeve engageable with cooperating back tapered torque lock surfaces on each side of the teeth of the clutch gear characterized in that the teeth of the shift sleeve and the teeth of the clutch gear have tips that engage to guide the teeth of the shift sleeve into engagement with the teeth of the clutch gear and in that the teeth of one of the clutch gear and the shift sleeve have tips that have points or apexes that are offset from center planes of their respective teeth so that the back tapered torque lock surfaces on one side of the aforesaid teeth are axially displaced from the back tapered torque lock surfaces on the opposite side of the aforesaid teeth.
Dependencies are inferred from the claim text.