192 clutches and power-stop control – Clutches – Progressive engagement
Patent
1987-06-05
1988-09-13
Herrmann, Allan D.
192 clutches and power-stop control
Clutches
Progressive engagement
74339, 74473R, 180247, 192109A, F16D 2306, B60K 2308
Patent
active
047702800
ABSTRACT:
A spring-assisted transfer case fork assembly for shifting a synchronizer clutch sleeve from its neutral position to complete lockup of its internal splines with external splines on a transmission shaft speed-change gear. The invention uniquely arranges a dual spring biased bracket on the fork shift rail allowing subsequent lagging travel of the shifting mechanism. The shift fork assembly is affixed to a tube member with forward and aft tube portions adapted to slide on the rail for reciprocal travel between its neutral and complete lock-up positions. A first compression spring operates to constantly bias the bracket's one flange in predetermined space relation with the tube member's opposed end. A second weaker compression spring biases the bracket aft flange forwardly into abutment with the tube member's other end. The arrangement provides rapid lost motion movement instantly advancing the clutch sleeve spline teeth into initial engagement with the speed-change gear splines upon the completion of synchronization allowing the clutch sleeve internal spline teeth to pass. The shift sequence is readily completed by the smooth advancement of the clutch sleeve to its full lock-up engagement thereby obviating gear shifting interruption caused by slight delay in the initial engaging movement of the clutch sleeve.
REFERENCES:
patent: 2019073 (1935-10-01), Cooper et al.
patent: 2304375 (1942-12-01), Peterson et al.
patent: 2916939 (1959-12-01), Neracher et al.
patent: 3700083 (1972-10-01), Ashikawa et al.
patent: 4381828 (1983-05-01), Lunn et al.
patent: 4529080 (1985-07-01), Dolan
patent: 4711136 (1987-12-01), Yoshinaka et al.
S. A. E. Technical Paper Series No. 680008, "Manual Transmission Synchronizer", Richard J. Socin and L. Kirk Walters, pp. 31-63, (not dated).
S. A. E. Technical Paper Series No. 800002, "Internal Transfer Case Controls for Four Wheel Drive Vehicles", G. E. Huffaker, 2-25-80, pp. 1-7.
Barthel Edward P.
Chrysler Motors Corporation
Herrmann Allan D.
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