Synchronizer with self-energizing

Details Synchronizer with self-energizing Synchronizer with self-energizing

1994-08-15

1996-08-13

Bonck, Rodney H.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 5331, 192 5334, F16D 2306

Patent

active

055447279

ABSTRACT:
A baulkring-type synchronizer (18) includes cone clutch friction surfaces (24,48 and 26,50) and jaw clutch teeth (36b,28 and 36c,30) for frictionally synchronizing and positive connecting gears (14,16) to a shaft (12). A plurality of rigid members (72) are drivingly interposed between blocker teeth (44,46) affixed to baulkrings (40,42) and self-energizing ramp surfaces (70a-70d) defined on an outer circumference of a hub 32 affixed to the shaft (12). A shift sleeve (34) is slidably splined to the hub (32) and is moved by an operator shift force (F.sub.o) and an additive force (F.sub.a) provided by the self-energizing ramp surfaces. Both forces (F.sub.o and F.sub.a) react against the blocker teeth to engage the friction surfaces. The self-energizing ramp surfaces may be long enough to assist shift completion as unblocking occurs.

REFERENCES:
patent: 3548983 (1970-12-01), Hiraiwa
patent: 4349090 (1982-09-01), Griesser
patent: 5078244 (1992-01-01), Olson
patent: 5092439 (1992-03-01), Reynolds
patent: 5425437 (1995-06-01), Nellums

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