US4085830A - Automatic slack adjusters for vehicle brakes - Google Patents

The present invention aims at reducing these difficulties. In the wedge hole on the rear expanders, there is a groove on each inner side to allow clearance for this pin. By merely giving one section as little as one-sixth of a turn when ernploying a hexagonal shaft the shaft to that eX- tent can become shortened or lengthened; and this can be done with the shaft in situ, by merely disconnecting the shoe from its associated anchor, shifting the shaft to the position shown in Fig.

The half-moon cut-out on the brake shoes goes to the front and engages in the brake adjuster mechanism. Door Hinge Post Reinforcement.

Brake Kits and Expert Kits

Ford Type 9 Gearbox. These springs 49 and 49fare preferably of equal strength. The tappet 4 is of solid construction.

In its application to an automatic adjuster unit for such a brake, the present invention provides a unit which is secured in use to the brake back plate over the adjuster spindle in driving engagement therewith. Search this site. This is because the drum causes a wedging action on this shoe when the brakes are applied. Ford V6. The outer end of the plunger is also slotted to allow engagement by the end of the brake shoe. The unit also exhibits a novel manual re-setting arrangement in which a final driven member of the mechanism is formed with a ring of gear teeth in constant mesh with a pinion.

This explains the purpose of the construction of the shaft in two sections connected by a threaded joint. Cables run from this compensator to the front expanders, which are attached to the backing plates inside the brake drums. Accelerator Cable. Sliding Axle Suspension. This is undesirable since excessively high loads applied to the adjuster may cause damage to the components of the adjuster, and particularly to the threaded engagement of parts of the strut assembly.

The wedge 12 acts on inclined faces 16 and 17 at the inner ends of the tappets 4,5 through rollers 18 journalled for rotation in a cage The unit is of course completed by gaskets and running seals to protect it against the ingress of dirt and moisture.

The rear set-up is basically similar. Such an arrangement leads to relatively heavy loads being applied to the moving parts of the adjuster unit, including those parts whose main function sense and transmit the incoming signal.

According to our invention in an automatic adjuster of the kind set forth for a vehicle brake the adjuster member acts on the said part of the strut assembly through a driven ring, and an overload spring urges a clutch face on the driven ring into engagement with a complementary clutch face on the said part so that the driven ring and the said part are movable together unless the reaction between the clutch faces exceeds the loading of the overload spring whereafter the driven ring can rotate relative to the strut assembly to preclude adjustment.

Put both springs in the top shoe, locate the rear section of the shoe in its slot in the expander mechanism, but let the front of the shoe hang down outside the adjuster mechanism. The bonding process itself will tend to make lining material harder. In use, the adjuster unit will be operated in response to a predetermined travel of the brake shoes or one of them which travel is transmitted to the unit as a mechanical input signal. Belzona and sealing porous castings. One sided rack photos.

Series 1 originality guide. Page authors John Merton January 2, The outer ends of the shaft sections 35 and 35 are formed with oppositely threaded sockets 36 and 36' Fig.

USA - Automatic slack adjusters for vehicle brakes - Google Patents

Standard Special. Rover 4-Speed Gearbox.

Coil spring calculator. ITB en.

Classic Morgan Rear Axle Location. Front Suspension: Making the brakes work.