Brake actuator assembly
AssigneeIndian Head Industries, Inc.
InventorsRonald S. Plantan, Gregory A. Greenly
Life of this patent
Estimating the term…
Abstract
The brake actuator assembly of this invention significantly reduces accumulation of road debris, reduces the weight of the push rod and yoke assembly and friction between the mating parts. The brake actuator includes a housing defining a chamber having an opening through the end wall, a push rod and yoke assembly reciprocally mounted within the housing chamber and a shield located within the housing closely receiving the exterior surface of the push rod and yoke assembly which has a smooth substantially continuous external surface. In the preferred embodiment, the yoke is secured to the push rod within the housing chamber, surrounding the push rod having an elliptical exterior surface which sheds accumulation of road debris.
Claims20
A brake actuator assembly, comprising:
- a housing defining a chamber therein including an end wall having an opening therethrough;
- a push rod and yoke assembly reciprocally mounted within said housing chamber having a distal end portion selectively reciprocating through said housing end wall opening having a bifurcated end portion;
- and
- a shield located within said housing on said end wall having an opening therethrough coaxially aligned with said housing end wall opening and closely receiving said push rod and yoke assembly distal end portion;
- wherein said yoke including said bifurcated end portion has a smooth continuous external surface of substantially constant longitudinal cross section throughout its length reducing accumulation of foreign material and said shield continuously wipes accumulated foreign material from said external surface.
A brake actuator assembly, comprising:
- a housing defining a chamber including an end wall having an opening therethrough;
- a push rod reciprocally mounted within said housing chamber coaxially aligned with said housing end wall opening;
- a yoke having a first end portion secured to said push rod within said housing chamber and a second end portion extending through said housing chamber end wall opening having a smooth continuous external surface reducing accumulation of foreign material;
- and
- a shield located within said housing chamber on said end wall having an opening therethrough coaxially aligned with said opening through said end wall closely receiving said yoke and continuously wiping accumulated foreign material from said smooth continuous external surface of said yoke.
A brake actuator assembly, comprising:
- a housing defining a chamber including an end wall having an opening therethrough;
- a push rod reciprocally mounted within said housing chamber having an externally threaded distal end portion coaxially aligned with said housing opening;
- a yoke having a first end portion including an internally threaded bore threadably received on said externally threaded distal end portion of said push rod surrounding said push rod within said housing chamber and a second end portion extending through said housing chamber end wall opening having a bifurcated free end, said yoke including said bifurcated free end having a smooth continuous external surface reducing accumulation of foreign material;
- and
- a shield located within said housing on said end wall having an opening therethrough coaxially aligned with said opening through said end wall and closely receiving said yoke continuously wiping accumulated foreign material from said smooth continuous external surface of said yoke.
Dependencies are inferred from the claim text.