Brakes – Wheel – Axially movable brake element or housing therefor
Patent
1991-07-08
1992-01-28
Halvosa, George E. A.
Brakes
Wheel
Axially movable brake element or housing therefor
188250B, F16D 55225
Patent
active
050836412
ABSTRACT:
Arrangement for disc brakes having so-called floating suspension containing a brake disc and a brake caliper which is movably mounted on a caliper holder for axial motions relative to the brake disc. The brake caliper has at least one pair of brake pads having friction linings intended to be brought to bear against braking surfaces on the brake disc. Load-bearing supporting surfaces hold the brake pads normally in their intended positions in the caliper by absorbing the forces acting mainly on the brake pads due to friction against the brake disc by cooperating with edge surfaces on the brake pads. These supporting surfaces extend over only a part of the space up to the brake disc to an imaginary geometrical delimiting plane for each brake pad, said plane extending parallel to the brake disc. The brake pads have protrusions, each of which extend into an opening in the caliper or caliper holder, one opening being provided for each protrusion. The protrusions normally maintain no load-absorbing cooperation with the caliper or caliper holder but rather have normally a play between parts of the protrusions and the corresponding openings. The openings extend axially closer to the brake disc than the supporting surfaces so that when the brake pads and brake disc are worn down to such a degree that the brake pads can move axially beyond the delimiting plane for the supporting surfaces, said parts of the protrusions are caused during braking, by contacting reserve supporting surfaces in the openings, to absorb the forces acting on the brake pads due to friction against the brake disc.
REFERENCES:
patent: 3831717 (1974-08-01), Flaherty
patent: 4341289 (1982-07-01), Smith
patent: 4632227 (1986-12-01), Mary et al.
Aktiebolaget Volvo
Halvosa George E. A.
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