Multiple-disc clutch for tractor PTO shaft

Details Multiple-disc clutch for tractor PTO shaft Multiple-disc clutch for tractor PTO shaft

1987-07-08

1989-02-28

Braun, Leslie A.

192 clutches and power-stop control

Clutches

Plural clutch-assemblage

192 487, 192 4891, 192 85AA, 192 8715, F16D 2510, F16D 2506

Patent

active

048077321

ABSTRACT:
A claw clutch (42) is added in line to a multiple-disc clutch 40. One actuating member 21 engages first the claw clutch 42 and then, almost simultaneously, the multiple-disc clutch 40. Return springs 37 disengage first the multiple-disc clutch 40 and then, almost simultaneously, the claw clutch 40. The multiple-disc clutch 40 can be engaged under full power. A dangerous drag moment of the multiple-disc clutch 40 is active only for a very short time when the clutch system is just being disengaged, immediately thereafter only the harmless redidual moment of the claw clutch 42 remains active.

REFERENCES:
patent: 952535 (1910-03-01), Loomis
patent: 1138098 (1915-05-01), Fornaca
patent: 1435903 (1922-11-01), Holmes
patent: 3063529 (1962-09-01), Cook
patent: 3252553 (1966-03-01), Peterson
patent: 3300004 (1967-02-01), Peterson
patent: 3722645 (1973-03-01), Sommer
patent: 3823802 (1974-07-01), Winzeler et al.
patent: 3938631 (1976-02-01), Smith
patent: 4147245 (1979-04-01), Folomin et al.

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