Thomas David Stump

US Patent:

50525271, Oct 1, 1991

Filed:

May 24, 1990

Appl. No.:

7/527951

Inventors:

Thomas D. Stump - Flatwoods WV

International Classification:

F16D 6548

US Classification:

188 7955

Abstract:

Improvements are disclosed to conventional brake slack adjuster mechanisms of the type which are employed upon heavy equipment such as dump trucks and the like which mechanisms are anchored to the axle of the truck and utilize a worm drive and spline arrangement within an adjuster housing to drive a spline shaft interconnected to the brake assembly to adjust the brakes. The worm drive is driven by a worm drive adjusting bolt which has an adjusting bolt head which interreacts with a spring loaded adjusting bolt head socket lock which may be forced out of disenagagement with the adjusting bolt head to permit adjusting of the brakes by the worm-spline drive arrangement and which adjusting bolt head socket lock upon release engages the adjusting bolt head to lock the adjusting bolt head against misadjustment. The improvements include a retrofit adjusting nut larger than the adjusting bolt head secured to the adjusting bolt head and which cooperates with a lock housing which includes a lock housing socket fitting over the retrofit adjusting bolt nut and a flange plate secured to the open end of the lock housing socket all of which works in conjuction with a device to secure the lock housing and its associated lock housing socket and flange plate in sealed relationship with the adjuster housing.