F - Mech Eng,Light,Heat,Weapons – 16 – H
Patent
F - Mech Eng,Light,Heat,Weapons
16
H
F16H 55/32 (2006.01) F16D 23/06 (2006.01)
Patent
CA 2137947
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 torque ring (63) is mounted in a shift sleeve (34) for limited rotation relative thereto and non-axial movement relative thereto. The ring defines self-energizing ramp surfaces (74a,74b,74c,74d), blocker surfaces (76a,76b,78a,78b), and reaction surfaces (76c,78c). The ring self-energizing ramp surfaces engage self-energizing ramp surfaces (70a,70b,72a,72b) defined on an outer circumference of a hub (32) affixed to the shaft. The ring blocker surfaces engage blocker surfaces (44a,44b,46a,46b) affixed to baulkrings (40,42). The ring reaction surfaces engage reaction surfaces (44c,44d,46c,46d) affixed to the baulkrings. Synchronizing torque produced by friction surfaces is partly reacted across the blocker surface, the remainder is reacted across the reaction surfaces, and the sum of the total synchronizing torque is reacted across the self-energizing ramp surfaces. A shift sleeve (34) is slidably splined to the hub (32) and is moved by an operator shift force (F o) and an additive force (F a) provided by the self-energizing ramp surfaces. Both forces (F o and F a) react against the blocker teeth to engage the friction surfaces.
Borden Ladner Gervais Llp
Corporation Eaton
LandOfFree
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