Neutral position detent for synchronizer

Details Neutral position detent for synchronizer Neutral position detent for synchronizer

1994-10-24

1996-09-24

Lorence, Richard M.

192 clutches and power-stop control

Clutches

Progressive engagement

192 53331, 192 53361, 74339, F16D 2306

Patent

active

055581943

ABSTRACT:
A pin-type synchronizer mechanism (86) with self-energizing ramps is configured to provide self-energizing forces for reducing an operator applied shift force (F.sub.o) and/or shift time. The self-energizing forces are provided by self-energizing ramp surfaces (29e,29f,29g,29h) and (111a, 111b,111c, 111d) respectively, formed in external splines (29) of a shaft 28 and in internal teeth (111) extending radially inward from a shift flange (110). The ramp surfaces provide an additive axial force (F.sub.a) applied to friction rings (114,116) via shift flange blocker surfaces (110d,110e) reacting respectively against pin blocker surfaces (118c, 118d). The shift flange carries improved pre-energizer and neutral position centering assemblies (120) including pre-energizer plungers (124) and neutral position plungers (126) respectively for axially retaining pins (118) and friction rings (114,116) in a neutral position relative to flange (110) and for neutral positioning flange (110) relative to recesses (128)in shaft (28).

REFERENCES:
patent: 1730362 (1929-10-01), Gaylord
patent: 2198273 (1940-04-01), Reggio
patent: 2229094 (1941-01-01), Knox
patent: 5092439 (1992-03-01), Reynolds

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