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US 7,063,190 B1Granted
Braking system
AssigneeMPC Products Corporation
InventorsDale A. Sylvan, Craig H. Scott, Anton A. Petrou
Life of this patent
Estimating the term…
Abstract
A braking system having a brake disc and a brake plate. The brake disc and brake plate each include three plateaus that include ramps on each end. The plateaus of the brake disc are configured to substantially mate with the plateaus of the brake plate.
Claims20
A braking system for a shaft mounted for rotation, the braking system comprising:
- a brake disc coupled to the shaft for rotation therewith, the disc including a disc face having a plurality of disc plateaus positioned around the circumference of the disc, each disc plateau including a pair of disc ramps disposed at opposite ends of the disc plateau, each of the disc ramps extending between the disc face and a top surface of the disc plateau at an angle of approximately 10° relative to the disc face;
- a brake plate mounted to be relatively stationary, the brake disc being rotatable with respect to the brake plate, the brake plate including a plate face positioned substantially parallel and adjacent to the disc face and including a plurality of plate plateaus corresponding to the number of disc plateaus, each plate plateau including a pair of plate ramps disposed at opposite ends of the disc plateau, each of the plate ramps extending between the plate face and a top surface of the plate plateau, the plate ramps being angled relative to the plate face at approximately the same angle at which the disc ramps are angled relative to the disc face, the plate plateaus defining recesses between consecutive plate plateaus that are dimensioned to correspond to the disc plateaus such that the disc plateaus mate with the recesses;
- and
- a spring, the disc face and the plate face being biased against each other by the spring to cause a braking force from sliding contact between the disc plateaus and the plate plateaus and to cause a locking force when said plateaus mate with the recesses.
1 more element
A braking system for braking a rotatable shaft, the system comprising:
- a brake plate moveable between an engaged position and a retracted position, the brake plate including a plate face having a plurality of plate plateaus positioned around the circumference of the brake plate, each plate plateau including a pair of plate ramps disposed at opposite ends of the plate plateau, each of the plate ramps extending between the plate face and a top surface of the plate plateau, the plate ramps being angled at an angle of between approximately 5° and 20° relative to the top surface;
- a coil that is powered to create a magnetic field to move the brake plate between its engaged and retracted positions;
- a brake disc mounted to the shaft for rotation relative to the brake plate, the brake disc including a disc face positioned substantially parallel and adjacent to the plate face and including a plurality of disc plateaus, each disc plateau including a pair of disc ramps disposed at opposite ends of the disc plateau, each of the disc ramps extending between the disc face and a top surface of the disc plateau, the disc ramps being angled at an angle of between approximately 5° and 20° relative to the disc face, the disc plateaus defining recesses between consecutive disc plateaus that are dimensioned to correspond to the plate plateaus such that the plate plateaus mate with the recesses;
- and
- a spring, the disc face and the plate face being biased against each other by the spring.
2 more elements
A method of braking a rotating shaft, the method comprising:
- attaching the shaft to a brake disc, the brake disc having a disc face with shallow disc plateaus protruding from it, each disc plateau including a pair of disc ramps disposed at opposite ends of the disc plateau, each of the disc ramps extending between the disc face and a top surface of the disc plateau at an angle of approximately 5° to 20° relative to the disc face;
- and
- providing a brake plate with a plate face and a spring force to selectively engage the plate face of the brake plate with the disc face of the brake disc, the plate face having shallow plate plateaus protruding from it, each plate plateau including a pair of plate ramps disposed at opposite ends of the plate plateau, each of the plate ramps extending between the plate face and a top surface of the plate plateau, the plate ramps being angled relative to the plate face at approximately the same angle at which the disc ramps are angled relative to the disc face, the spring force being chosen to permit the disc plateaus to slide over the plate plateaus in a dynamic braking portion of the method and prevent sliding of the disc plateaus over the plate plateaus in a locking portion of the method.
Dependencies are inferred from the claim text.