초록 ▼

An adjuster releasing apparatus for a drum brake in which an adjuster lever is pushed up by a pin-shaped member inserted from an opening of a backing plate, a stopper for limiting the movement amount of push-up of the adjuster lever in the state where the adjuster lever is pushed up to thereby relea

An adjuster releasing apparatus for a drum brake in which an adjuster lever is pushed up by a pin-shaped member inserted from an opening of a backing plate, a stopper for limiting the movement amount of push-up of the adjuster lever in the state where the adjuster lever is pushed up to thereby release its engagement with an adjuster gear is provided on the backing plate side.

대표청구항 ▼

An adjuster releasing apparatus for use in a drum brake, comprising: a backing plate fixed to a stationary portion of a vehicle, said backing plate having an opening portion; a wheel cylinder body; a piston disposed in said wheel cylinder body; a pair of brake shoes disposed on said backing plate, s

An adjuster releasing apparatus for use in a drum brake, comprising: a backing plate fixed to a stationary portion of a vehicle, said backing plate having an opening portion; a wheel cylinder body; a piston disposed in said wheel cylinder body; a pair of brake shoes disposed on said backing plate, said pair of brake shoes having end portions; actuator means disposed between said end portions of said pair of brake shoes; and an adjuster device incorporated with said actuator means, said adjuster device comprising: an adjuster gear, which is adapted to unidirectionally rotate, for expanding said brake shoes; an elastically deformable adjuster lever being pivotally mounted on said actuator means and normally engaging with said adjuster gear, said adjuster lever capable of being pushed up by a pin-shaped member inserted from said opening portion of said backing plate; and stopper means, directly connected to said piston for limiting a movement of said adjuster lever when said adjuster lever is pushed up to release said engagement of said adjusting lever with said adjuster gear.