Floating-caliper spot-type disc brake with a light-metal brake housing
First Claim
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1. A floating-caliper spot-type disc brake, comprising:
- a one piece floating caliper adapted for applying brakes shoes arranged on both sides of a brake disc, said caliper embracing the brake shoes in a U-shaped manner and having a caliper bridge straddling a radially outside edge of the brake disc and the brake shoes, said caliper for transmitting a clamping force for applying the brake shoes against said brake disc;
at least one bolt threaded within the caliper bridge;
said floating caliper being cast from aluminum;
said at least one bolt being made of a high-tensile material and reinforcing said caliper bridge;
said floating caliper having a recess opening toward said brake disc in an area of the caliper bridge adjacent the brake disc;
said at least one bolt having a midsection extending through said caliper recess, said mid-section being disposed in the direct vicinity of the radially outside brake disc edge;
wherein, said caliper recess is constructed such that no portion of the caliper lies directly between said bolt mid-section and said brake disc.
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Abstract
A cast-aluminum floating caliper of a floating-caliper spot-type disc brake is reinforced by means of reinforcing elements of a high-tensile material. In accordance with one embodiment of this invention the floating caliper is provided with recesses in an area adjacent the brake disc and the brake shoes. Bolts extend through the recesses in the direct vicinity of the radially outside brake disc edge. Commercially available steel bolts preferably are used. These measures optimize the floating caliper weight, stiffness and manufacturing cost.
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Citations
19 Claims
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1. A floating-caliper spot-type disc brake, comprising:
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a one piece floating caliper adapted for applying brakes shoes arranged on both sides of a brake disc, said caliper embracing the brake shoes in a U-shaped manner and having a caliper bridge straddling a radially outside edge of the brake disc and the brake shoes, said caliper for transmitting a clamping force for applying the brake shoes against said brake disc; at least one bolt threaded within the caliper bridge; said floating caliper being cast from aluminum; said at least one bolt being made of a high-tensile material and reinforcing said caliper bridge; said floating caliper having a recess opening toward said brake disc in an area of the caliper bridge adjacent the brake disc; said at least one bolt having a midsection extending through said caliper recess, said mid-section being disposed in the direct vicinity of the radially outside brake disc edge; wherein, said caliper recess is constructed such that no portion of the caliper lies directly between said bolt mid-section and said brake disc. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A floating-caliper spot-type disc brake, comprising:
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a one piece floating caliper adapted for applying brakes shoes arranged on both sides of a brake disc, said caliper embracing the brake shoes in a U-shaped manner and having a caliper bridge straddling a radially outside edge of the brake disc and the brake shoes, said caliper for transmitting a clamping force for applying the brake shoes; at least one reinforcing element substantially enclosed within a substantially cylindrical bore of said caliper bridge, said cylindrical bore extending essentially parallel to the brake disc axis; said floating caliper being cast from aluminum light metal and said at least one reinforcing element being made of a high-tensile material; said at least one reinforcing element being essentially at least one cylindrical pin which, essentially without axial prestress, is disposed within said substantially cylindrical bore in said caliper bridge, said bore essentially running parallel to the brake disc axis. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification