Internal shoe drum brake adjusting device

Details Internal shoe drum brake adjusting device Internal shoe drum brake adjusting device

1981-09-09

1984-02-14

Stoner, Jr., Bruce H.

Brakes

Wheel

Transversely movable

188 795GT, 188196B, F16D 5152, F16D 6552

Patent

active

044310889

ABSTRACT:
An internal shoe drum brake automatic adjuster comprising a strut extending between one brake shoe and a wedge, mounted between the strut and an abutment on a second brake shoe. The wedge is spring loaded to increase the spacing between the adjacent end of the strut and the abutment. The wedge has serrations thereon that engage with a pawl on the second brake shoe so that the wedge can only move to increase said spacing and not in the reverse direction. There is also provided a brake in which the strut is engageable with a mechanical lever pivoted to the one brake shoe. The brake is de-adjusted by moving the lever so that it no longer contacts the strut.

REFERENCES:
patent: 3016990 (1962-01-01), Towns
patent: 3339678 (1967-09-01), Burnett
patent: 4217973 (1980-08-01), Johns et al.
patent: 4232766 (1980-11-01), Rupprecht

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