Disc Brake

A disc brake comprising:

• a support member having a substantially rectangular body with a corresponding rectangular opening to define a first end that is separated from a second end by parallel first and second side walls, said first end having first and second perpendicular projections thereon aligned with said first wall and third and fourth perpendicular projections thereon aligned with said second wall, said support member being fixed to a housing of a vehicle to locate said first and second walls in parallel alignment corresponding first and second faces on a rotor, said first wall having a first plurality of bores for receiving a first plurality of piston to define a first plurality of chambers, said second wall having a second plurality of bores for receiving a second plurality of pistons to define a second plurality of chambers, said first and second plurality of chambers being connected to receive pressurized fluid from a source;
• a first friction member having a first carrier plate with a first radial projection and a second radial projection thereon located mid-way between a first end and a second end;
• a second friction member having a second carrier plate with a third radial projection and a fourth radial projection thereon located mid-way between a first end and a second end;
• and
• linkage means including a first beam for connecting said first projection on said first friction member with said first perpendicular projection on said support member, a second beam for connecting second projection on said first friction member with said second perpendicular projection on said support member, a third beam for connecting said third projection on said second friction member with said third perpendicular projection on said support member and a fourth beam for connecting said fourth projection on said second friction member with said fourth perpendicular projection on said support member to align said first friction member adjacent said first piston and said second friction member adjacent said second piston such that on presentation of pressurized fluid to said first and second plurality of chambers and act on said first and second plurality of pistons to create an actuation force and simultaneously move said first friction member into engagement with said first face on said rotor and second friction member into engagement with said second face on said rotor to effect a brake application.

A disc brake having a support member with a substantially rectangular body defined a first end that is separated from a second end by parallel first and second side walls and attached to a housing to align the first and second side walls with a rotor, said first and second side wall retaining actuations means that act on first and second frictions members in response to an operator input to move the first and second friction members into engagement with the rotor to effect a brake application, said rectangular body being characterized by first and second perpendicular projections that extend from said first end and are aligned with said first wall and third and fourth perpendicular projections that extend from said first end and are aligned with said second wall;

• and wherein said first and second friction members are respectively characterized by carrier plates having a first radial projection and a second radial projection located mid-way between a first end and a second end;
• and wherein said first and second friction members are aligned with the rotor by a first beam that connects said first projection on said first friction member with said first perpendicular projection on said support member, a second beam that connects second projection on said first friction member with said second perpendicular projection on said support member, a third beam that connects said first projection on said second friction member with said third perpendicular projection on said support member and a fourth beam that connects said second projection on said second friction member with said fourth perpendicular projection on said support member to align said first friction member and said second friction member adjacent said actuation means such that said first and second beams pivot on said first and second perpendicular projections and said third and fourth beams pivot on said third and fourth perpendicular projections as said first and second carriers are moved with respect to said rotor by an actuation force from the actuation means in effecting a brake application.