Friction element and disc brake
First Claim
1. Friction element (P) for a disk brake that includes a support plate (2) and a friction material (3) fixed on one of the faces of said support plate (2), said support plate (2) being substantially in the form of an arc of a circle, and that also includes a projection (38) extending radially toward the outside of the arc of the circle, a spring element (22) being fixed to said radial projection (38), said spring element (22) being produced from wire wound as turns and provided with a first and with a second arm (30, 32) that extend in two opposite directions substantially tangentially to said turns, characterized in that said support plate (2) includes an orifice (40) for the fitting of the spring element, in which the wound section is mounted, the first and second arms (30, 32) extending on either side of the support plate (2), and in that the first and second arms (30, 32) are of different lengths, the first arm (30) exerts a first force oriented in a first direction and the second arm (32) exerts a second force oriented in a second direction, such that the first force is oriented at an acute angle toward the front or toward the rear of the friction element with respect to the second force.
1 Assignment
0 Petitions
Accused Products
Abstract
A friction element for a disk brake that includes a support plate (2) on which is fixed a friction material designed to come into contact with a first face of a brake disk. The friction element also includes an elastic element for returning the friction element to its rest position, said elastic element including a wound section of turns from which extend a first and second arm (30, 32) of different lengths designed to bear elastically against an arch of a caliper of the disk brake. The wound section of turns is fitted into an orifice made in a radial projection of the support plate.
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Citations
16 Claims
- 1. Friction element (P) for a disk brake that includes a support plate (2) and a friction material (3) fixed on one of the faces of said support plate (2), said support plate (2) being substantially in the form of an arc of a circle, and that also includes a projection (38) extending radially toward the outside of the arc of the circle, a spring element (22) being fixed to said radial projection (38), said spring element (22) being produced from wire wound as turns and provided with a first and with a second arm (30, 32) that extend in two opposite directions substantially tangentially to said turns, characterized in that said support plate (2) includes an orifice (40) for the fitting of the spring element, in which the wound section is mounted, the first and second arms (30, 32) extending on either side of the support plate (2), and in that the first and second arms (30, 32) are of different lengths, the first arm (30) exerts a first force oriented in a first direction and the second arm (32) exerts a second force oriented in a second direction, such that the first force is oriented at an acute angle toward the front or toward the rear of the friction element with respect to the second force.
- 9. Disk brake that includes a caliper, an inside friction element and an outside friction element, at least one piston capable of applying the inside friction element against a first face of a disk brake, characterized in that it includes at least one friction element that includes a support plate (2) and a friction material (3) fixed on one of the faces of said support plate (2), said support plate (2) being substantially in the form of an arc of a circle, and that also includes a projection (38) extending radially toward the outside of the arc of the circle, a spring element (22) being fixed to said radial projection (38), said spring element (22) being produced from wire wound as turns and provided with a first and with a second arm (30, 32) that extend in two opposite directions substantially tangentially to said turns, characterized in that said support plate (2) includes an orifice (40) for the fitting of the spring element, in which the wound section is mounted, the first and second arms (30, 32) extending on either side of the support plate (2), and in that the first and second arms (30, 32) are of different lengths, the first arm (30) exerts a first force oriented in a first direction and the second arm (32) exerts a second force oriented in a second direction, such that the first force is oriented at an acute angle toward the front or toward the rear of the friction element with respect to the second force, the arms (30, 32) of said spring element being mounted so as to bear under mechanical stress against an inside face of an arch (50) of the caliper (42).
Specification