Patent ID: 8443946

Claim:
A vehicle disc brake device comprising: a disc rotor; a brake caliper holding brake pads, said brake pads having a longitudinal center and having an entry side at which said disc rotor enters said caliper and an exit side at which said disc rotor exits said caliper; first and second pistons for pressing the brake pads against the disc rotor; a set pin passing through a set pin hole in each of the brake pads, for movably supporting the brake pads in an axial direction of the disc rotor; and a torque-receiving component for receiving a braking torque from the brake pads during braking, wherein the set pin is disposed on one side of said longitudinal center of the brake pads offset from the longitudinal center of the brake pads away from a center of the disc rotor and on the entry side of said brake pads; wherein said first piston has a center that is offset from said longitudinal center of said brake pads toward the center of the disc rotor, such that said first piston center is disposed at a location away from a middle of a sliding range of the disc rotor; wherein said second piston has a center offset from said longitudinal center of said brake pads such that said second piston is located on said one side of said longitudinal center of said brake pads so as to be offset from the longitudinal center of the brake pads away from a center of the disc rotor; wherein said first and second pistons are operable independently of each other; and, wherein said entry side of said brake pads has an entry side end and said exit side of said brake pads has an exit side end, said entry side end being spaced a first distance from said first piston and said exit side end being spaced a second distance from said second piston, wherein said first distance is greater than said second distance; and, wherein said first piston is spaced a third distance from the second piston, said third distance being less than said first distance and greater than said second distance.