Machine element or mechanism – Gearing – Interchangeably locked
Patent
1996-08-13
1998-10-06
Marmor, Charles A.
Machine element or mechanism
Gearing
Interchangeably locked
74333, 74483R, F16H 308
Patent
active
058161015
ABSTRACT:
A manual transmission comprising a first pivot member operatively connected to a first coupling unit on an output shaft and is selectively rotatable to drive the first coupling unit between first, neutral and second positions. A second pivot member is operatively connected to a second coupling unit on the output shaft and is selectively rotatable to drive the second coupling unit between first, neutral and second positions. A first shift rail is operatively connected to the first pivot member and is adapted to slide axially within a shift rail guide in response to rotation of the first pivot member and a second shift rail is operatively connected to the second pivot member and is adapted to slide axially within the shift rail guide in response to rotation of the second pivot member. The first and second shift rails each comprise a lock-out detent in facing relation to one another. A lock-out plunger is positioned within the shift rail guide between the first and second shift rails and is adapted to move between a first and a second locking position only when the first and second coupling units are in the neutral position. In the first locking position, the plunger lockingly engages the lock-out detent in the first shift rail to restrict axial movement of the first shift rail without impeding axial movement of the second shift rail. In the second locking position, the plunger lockingly engages the lock-out detent in the second shift rail to restrict axial movement of the second shift rail without impeding axial movement of the first shift rail.
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Drawing No. STA-200-DC entitled "STA Gearbox (Die-Cast) Layout & Parts List" and dated Sep. 13, 1990, which illustrates a transmission believed to be in public use or on sale in the United States more than one year prior to the filing date of the present application.
4 color copies of photographs of a shift mechanism believed to have been in public use or on sale in the United States more than one year prior to the filing date of the present application.
Kwon Peter T.
Marmor Charles A.
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