Machine element or mechanism – Gearing – In series plural interchangeably locked nonplanetary units
Patent
1986-01-13
1987-08-18
Braun, Leslie
Machine element or mechanism
Gearing
In series plural interchangeably locked nonplanetary units
74356, 74360, F16H 302
Patent
active
046868690
ABSTRACT:
A tractor transmission includes a pair of dual power clutches that connects an engine to an input shaft through a gearset that selectively makes a direct connection or overdrives the shaft in accordance with the engaged or disengaged state of the clutches. A synchronizer connects the input shaft to an interior shaft of the transmission. A gear selector moves the sleeve of the synchronizer into engagement either with a gear on the input shaft or a gear on the interior shaft. When certain upshifts are made, the gear selector causes the clutch that overdrives the input shaft gear to disengage and the clutch that directly connects the input shaft gear to the engine to engage. This action slows the gear toward the synchronous speed at which the synchronizer connects the input gear to the interior shaft with minimal shifting effort.
REFERENCES:
patent: 2982153 (1961-05-01), Albertson et al.
patent: 3774460 (1973-11-01), Browning et al.
patent: 3774474 (1973-11-01), Recker et al.
patent: 3774475 (1973-11-01), Meysenburg et al.
patent: 3799003 (1974-03-01), Van Dest
patent: 4245514 (1981-01-01), Miyahara et al.
patent: 4498356 (1985-02-01), Vater et al.
patent: 4532827 (1985-08-01), Beim
patent: 4637269 (1987-01-01), Hasegawa et al.
Braun Leslie
Ford Motor Company
Harrington Donald J.
McKenzie Frank G.
Rolnicki Joseph M.
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