Dog-clutch coupling device

192 clutches and power-stop control – Clutches – Axially engaging

Reexamination Certificate

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Details

C192S083000, C192S089210, C192S101000

Reexamination Certificate

active

06938746

ABSTRACT:
The invention relates to a device for coupling two shafts that are intended to rotate in the continuation of one another with respect to a casing (4). A dog clutch couples the two shafts.The device comprises clutch-release means allowing the dog clutch (9) to be uncoupled. According to the invention, the clutch-release means comprise a ramp (17) secured to the casing (4), the ramp (17) having a helical shape around the axis (1), a flat disk (19) secured to the first shaft (3) the plane of which is more or less perpendicular to the axis (1), an element (20) intended to roll between the ramp (17) and the disk (19) so as to cause a translational movement of the first shaft (3) with respect to the casing (4) more or less along the axis (1), the translational movement allowing the dog clutch (9) to be uncoupled.The specific structure of the clutch-release means enables the shafts to be uncoupled while they are in rotation.

REFERENCES:
patent: 2933171 (1960-04-01), Kraeplin
patent: 4042088 (1977-08-01), Schmohe
patent: 4086991 (1978-05-01), Swadley
patent: 4244455 (1981-01-01), Loker
patent: 4434881 (1984-03-01), Denk et al.
patent: 5078249 (1992-01-01), Botterill
patent: 5103949 (1992-04-01), Vanderzyden et al.
patent: 5206793 (1993-04-01), Boudrant et al.
patent: 5584776 (1996-12-01), Engle et al.
patent: 2004/0262112 (2004-12-01), Skorucak
patent: 0 806 580 (1997-11-01), None
patent: 2 286 975 (1976-04-01), None
patent: 2 667 372 (1992-04-01), None

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