Self-energizing splines for a synchronizer

Details Self-energizing splines for a synchronizer Self-energizing splines for a synchronizer

1990-12-24

1991-11-19

Herrmann, Allan D.

192 clutches and power-stop control

Clutches

Progressive engagement

192 53F, F16D 2306

Patent

active

050658557

ABSTRACT:
A pin-type, double-acting synchronizer mechanism (22) includes friction clutches (24,36 and 26,38), jaw clutches (28,14b,16b), self-energizing ramps, (13f,13g,13h,13i and 29e,29f,29g,29h), and springs (33) to limit the maximum self-energizing or additive force provided by the ramps. The ramps act between a shaft (12) and clutch member (28). A shift flange (32) is rotatably fixed to the clutch member (28) by splines (32a,30) which allow relative axial movement against the force of the springs (33). The clutch member (28) and the shaft (12) include mating splines (29,13) divided into spline portions (29a,29b,29c,29d and 13a,13b,13c,13d,13e) to define the ramps to control limited relative rotation between the jaw clutch (28) and shaft (12), and to provide surface area and structural strength for transmitting full torque between the shaft and gears.

REFERENCES:
patent: 2410511 (1946-11-01), Letsinger et al.
patent: 2896760 (1959-07-01), Hebbinghaus
patent: 2978083 (1961-04-01), Henyon
patent: 3221851 (1965-12-01), Vandervoort
patent: 3548983 (1970-12-01), Hiraiwa
patent: 3804218 (1974-04-01), Krutashou
patent: 3910390 (1975-10-01), Eichinger
patent: 4018319 (1977-04-01), Thomas
patent: 4413715 (1983-11-01), Michael et al.
patent: 4836348 (1989-06-01), Knodel et al.
patent: 4869353 (1989-09-01), Ohtsuki et al.

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