Brakes – Position adjusters – Slack
Patent
1979-05-29
1981-03-17
Butler, Douglas C.
Brakes
Position adjusters
Slack
188 795K, 192111A, F16D 6556
Patent
active
042562082
ABSTRACT:
An automatic slack adjuster (10) having a lever housing (30) containing interior components to be lubricated and defining a first bore (36) in which a worm gear (38) is received, a second bore (42) intersecting the first bore in which a worm (44) and worm shaft (52) are received and a third bore (54) in which a drive mechanism (72 & 66) for rotating the worm shaft is received is provided. A lubricant fitting (150) is provided into the first bore and a passage (152) is provided between the first and third bore. Seals are provided to seal the exterior openings of the bores. The passage (152) defines in part a lubricant path between the fitting and the exterior opening (73) to the third bore which is configured so that the resistance to the flow of lubricant from the fitting (152) to the exterior opening (73) of the third bore is greater than the resistance to the flow of lubricant between the fitting and any other interior component to be lubricated. A boot (116) is received on the exterior surface of a sleeve like projection (118( defining the opening of the third bore to provide a static seal to the interior of the third bore. A smooth continuous groove (120) is provided on the exterior surface of the projection for cooperation with a bead (117) formed on the interior surface of the boot.
REFERENCES:
patent: Re26965 (1970-10-01), Sander et al.
patent: 3507369 (1970-04-01), Oliver
patent: 3901357 (1975-08-01), Reitz et al.
patent: 3949840 (1976-04-01), Cumming et al.
patent: 4071120 (1978-01-01), Hagin
patent: 4088206 (1978-05-01), Garrett et al.
Najer Leonard M.
Urban John A.
Butler Douglas C.
Eaton Corporation
Gordon H. D.
McCloskey R. J.
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