A self-boosting electromagnetic disk brake having an electromechanical actuating device and a mechanical self-boosting device that has a wedge mechanism. A wedge is displaceable parallel to a brake disk and relative to a friction brake lining, and the relative displaceability of the wedge is limited
A self-boosting electromagnetic disk brake having an electromechanical actuating device and a mechanical self-boosting device that has a wedge mechanism. A wedge is displaceable parallel to a brake disk and relative to a friction brake lining, and the relative displaceability of the wedge is limited relative to the friction brake lining to one direction, by means of a slaving device. The wedge is decoupled from the friction brake lining in one direction of rotation of the brake disk. As a result, the self-boosting device is operative in only one direction of rotation of the brake disk; in the reverse direction of rotation of the brake disk, the disk brake is neutral in terms of self-help.
대표청구항▼
The invention claimed is: 1. In a self boosting electromechanical vehicle brake, having a friction brake lining which is movable in one direction of rotation of a brake body that can be braked with the vehicle brake, having an electromechanical actuating device with which the friction brake lining
The invention claimed is: 1. In a self boosting electromechanical vehicle brake, having a friction brake lining which is movable in one direction of rotation of a brake body that can be braked with the vehicle brake, having an electromechanical actuating device with which the friction brake lining can be pressed against the brake body for braking, and having a mechanical self-boosting device which has a wedge and an abutment for the wedge and is operative in one direction of rotation of the brake body and which converts a frictional force, exerted on the friction brake lining by the rotating brake body upon braking, into a contact pressure that presses the friction brake lining against the brake body, and the wedge is urged in the direction of rotation of the brake body by the frictional force exerted on the friction brake lining by the rotating brake body upon braking and, by being braced on the abutment because of a wedge effect brought about by the contact pressure on the friction brake lining, the improvement wherein the friction brake lining further comprises a slaving device for the wedge, which slaving device slaves the wedge to the friction brake lining in the one direction of rotation of the brake body in which the self-boosting device is operative; and wherein roller bodies are disposed between the slaving device and the wedge; and wherein the vehicle brake comprises a travel limiter for the friction brake lining, which limits a travel of the friction brake lining in the opposite direction. 2. The self-boosting electromechanical vehicle brake in accordance with claim 1, wherein that the vehicle brake is a disk brake. 3. The self-boosting electromechanical vehicle brake in accordance with claim 1, wherein the actuating device acts on the friction brake lining indirectly via the wedge. 4. The self-boosting electromechanical vehicle brake in accordance with claim 1, wherein the vehicle brake comprises a wear compensating device, which limits a displacement travel of the slaving device. 5. In a self-boosting electromechanical vehicle brake, having a friction brake lining which is movable in one direction of rotation of a brake body that can be braked with the vehicle brake, having an electromechanical actuating device with which the friction brake lining can be pressed against the brake body for braking, and having a mechanical self-boosting device which has a wedge and an abutment for the wedge and is operative in one direction of rotation of the brake body and which converts a frictional force, exerted on the friction brake lining by the rotating brake body upon braking, into a contact pressure that presses the friction brake lining against the brake body, and the wedge is urged in the direction of rotation of the brake body by the frictional force exerted on the friction brake lining by the rotating brake body upon braking and, by being braced on the abutment because of a wedge effect brought about by the contact pressure on the friction brake lining, the improvement wherein the friction brake lining further comprises a slaving device for the wedge, which slaving device slaves the wedge to the friction brake lining in the one direction of rotation of the brake body in which the self-boosting device is operative; wherein the vehicle brake comprises a travel limiter for the friction brake lining, which limits a travel of the friction brake lining in the opposite direction; wherein the vehicle brake comprises a wear compensating device, which limits a displacement travel of the slaving device; and wherein the vehicle brake is a disk brake with a brake caliper, whose inside diameter is adjustable for wear compensation. 6. In a self-boosting electromechanical vehicle brake, having a friction brake lining which is movable in one direction of rotation of a brake body that can be braked with the vehicle brake, having an electromechanical actuating device with which the friction brake lining can be pressed against the brake body for braking, and having a mechanical self-boosting device which has a wedge and an abutment for the wedge and is operative in one direction of rotation of the brake body and which converts a frictional force, exerted on the friction brake lining by the rotating brake body upon braking, into a contact pressure that presses the friction brake lining against the brake body, and the wedge is urged in the direction of rotation of the brake body by the frictional force exerted on the friction brake lining by the rotating brake body upon braking and, by being braced on the abutment because of a wedge effect brought about by the contact pressure on the friction brake lining, the improvement wherein the friction brake lining further comprises a slaving device for the wedge, which slaving device slaves the wedge to the friction brake lining in the one direction of rotation of the brake body in which the self-boosting device is operative; wherein the vehicle brake comprises a travel limiter for the friction brake lining, which limits a travel of the friction brake lining in the opposite direction; wherein the vehicle brake comprises a wear compensating device, which limits a displacement travel of the slaving device; and wherein the travel limiter for the friction brake lining is adjustable for wear compensation in and/or counter to the direction of rotation of the brake body. 7. In a self-boosting electromechanical vehicle brake, having a friction brake lining which is movable in one direction of rotation of a brake body that can be braked with the vehicle brake, having an electromechanical actuating device with which the friction brake lining can be pressed against the brake body for braking, and having a mechanical self-boosting device which has a wedge and an abutment for the wedge and is operative in one direction of rotation of the brake body and which converts a frictional force, exerted on the friction brake lining by the rotating brake body upon braking, into a contact pressure that presses the friction brake lining against the brake body, and the wedge is urged in the direction of rotation of the brake body by the frictional force exerted on the friction brake lining by the rotating brake body upon braking and, by being braced on the abutment because of a wedge effect brought about by the contact pressure on the friction brake lining, the improvement wherein the friction brake lining further comprises a slaving device for the wedge, which slaving device slaves the wedge to the friction brake lining in the one direction of rotation of the brake body in which the self-boosting device is operative; wherein the vehicle brake comprises a travel limiter for the friction brake lining, which limits a travel of the friction brake lining in the opposite direction; and wherein the wedge comprises a second wedge having a face, on which the friction brake lining is braced.
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이 특허에 인용된 특허 (3)
Shirai Kenji,JPX ; Kurasako Ryoichi,JPX ; Yoshino Yasunori,JPX ; Imai Kazuhiko,JPX, Braking system including motor-driven disc brake equipped with self-servo mechanism.
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