Class / Patent application number | Description | Number of patent applications / Date published |
188720200 | Self-force-increasing means | 34 |
20080210498 | Self-Applying Disc Brake - A self-energizing disc brake having an electric actuator in which an activation force applied to the actuator is amplified using a self-energizing device arranged between the actuator and brake lining is described. The device has a brake application unit for applying at least one brake lining to one side of a brake disc by carrying out an application movement of the brake lining relative to the brake disc, the application movement having at least a first movement component in a direction parallel to a rotational axis of the brake disc and a second movement component in a direction tangential to the rotational axis of the brake disc. The device also has at least one electromotive drive for activating the brake application unit. | 09-04-2008 |
20080217118 | Bellows for a Self-Amplifying Electromechnical disc Brake and Disc Brake with Such a Bellows - The invention relates to a bellows for a self-energising electromechanical disc brake. According to the invention, a low deformation force may be achieved by means of a bellows with an elliptical, offset cross-section tapering in one direction and, in opposing circumferential sections of the bellows, the provision of circumferential folds of small curvature and inclined folds along the longitudinal sides of the bellows. | 09-11-2008 |
20080236959 | Vehicle brake system - A vehicle brake system, capable of realizing a brake-by-wire construction which can be installed in vehicles in the same manner as conventional brake systems, is provided with a booster device, a master cylinder, wheel brakes, and a hydraulic pressure control device interposed between the master cylinder and the wheel brakes. The system is further provided with a stroke sensor for detecting the moving stroke of a brake pedal, a simulator for applying to the brake pedal a pseudo reaction force corresponding to the moving stroke of the brake pedal, a play or idling component arranged between the booster device and the hydraulic pressure control device for absorbing the moving stroke of the brake pedal by a predetermined amount, and an electronic control device for controlling the hydraulic pressure control device based on an input from the stroke sensor. | 10-02-2008 |
20080245622 | Self-Boosting Friction Brake - The invention relates to a self-boosting electromechanical friction brakes particularly in the form of a partially lined disk brake. The friction brake includes a friction brake lining which is helically movable with respect to the direction of rotation of a brake disk and pressed there into. A ramp mechanism is provided with ramps which cooperate with a roller bearing mechanism supporting the brake lining, to obtain the self-boosting effect. According to the invention, two of three rolls of the ramp mechanism are embodied with directing flanges for guiding the rolls on the ramps in order to helically guide the friction brake lining. | 10-09-2008 |
20080289913 | Self-Amplifying Electromechanical Friction Brake - The present invention relates to an electromechanical disk brake ( | 11-27-2008 |
20080296102 | Self-Amplifying Electromechanical Partial Lining Disc Brake - The present invention relates to a self-amplifying electromechanical partial lining disc brake, having a ramp mechanism as a self-amplification device. According to the invention, a rack for driving a friction brake pad is situated between roller elements of the ramp mechanism, particularly at a geometrical centroid of an imaginary surface defined by the roller elements. As a result a load is distributed to the roller elements in a more uniform fashion and the pressing force of the friction brake pad against a brake disc when the partial lining disc brake is actuated is distributed more uniformly and counteracts irregular pad wear. | 12-04-2008 |
20090045018 | Self-Energizing Disc Brake with an Electromechanical Actuator - A disc brake is provided having an electromechanical actuator, which is designed as an electric motor, for actuating a brake application device for applying the brake, which disc brake has a self-energizing device, characterized in that the electric motor acts directly or via a gearing on a rotary lever which acts on at least one brake piston which moves a brake pad parallel to the brake disc rotational axis, which brake pad is moveable both in the direction parallel to the brake disc rotational axis and also parallel to the brake disc friction face. | 02-19-2009 |
20090188760 | DISC BRAKE DEVICE TO KEEP A VEHICLE STATIONARY WHEN PARKED - The disc brake device comprises a piston ( | 07-30-2009 |
20090188761 | Electromechanically Actuable Disc Brake with Actuating Plunger - A self-boosting electromechanically actuable disc brake, having an application device for applying the brake pad, which application device has a rotary brake lever and a self-boosting device, wherein the rotary brake lever acts on an actuating plunger which acts on the application-side brake lining directly or via a pressure plate, is characterized in that the actuating plunger is pivotably mounted on the rotary brake lever and on the pressure plate or the application-side brake lining with an intersecting rotational axis. | 07-30-2009 |
20090194377 | Electromechanically Actuated Disc Brake with Guide Plate - A self-boosting electromechanically actuable disc brake is characterized in that a component (pressure piston | 08-06-2009 |
20090200120 | Self-energizing disk brake and control method for a self-energizing brake - A self-energizing disk brake having an electric actuator in which an activation force applied to the actuator is amplified using a self-energizing device arranged between the actuator and brake lining is described. The device has a brake application unit for applying at least one brake lining to one side of a brake disc by carrying out an application movement of the brake lining relative to the brake disc, the application movement having at least a first movement component in a direction parallel to a rotational axis of the brake disc and a second movement component in a direction tangential to the rotational axis of the brake disc. The device also has at least one electromotive drive for activating the brake application unit. Rotation of the shaft of the electromotive drive is converted to a non-linear displacement of the brake pad in the tangential direction. | 08-13-2009 |
20090211854 | BUFFER DEVICE OF DISK BRAKE - A buffer device of a disk brake comprises a cylinder; the cylinder being installed with at least one piston assembly which has a piston and a push cover. The piston is installed at an inner side and outer side thereof, and the inner side having a receiving chamber for receiving a push cover. A bottom of the receiving chamber is extended upwards with an inner wall. An outer diameter of the push cover is slightly smaller than an inner diameter of the receiving chamber. The push cover has a first end and a second end. The second end of the push cover is corresponding to the inner end of the piston so that second end is received in the receiving chamber. An elastic assembly is installed between the push cover and the piston and the outer sides of the first end and second end are formed as an outer wall. | 08-27-2009 |
20090229931 | HYDRAULIC VEHICLE BRAKE SYSTEM - The invention proposes equipping a hydraulic vehicle brake system with a pedal travel modulator that has an electromechanically driven piston-cylinder unit. The piston-cylinder unit upon brake actuation “furnishes” additional brake fluid and thereby boosts a pedal travel of the vehicle brake system. | 09-17-2009 |
20090277728 | Self Activated Power Brake - A Self Activated Power Brake comprising a rotating brake disk fitted coaxially to a wheel and the main brake caliper/shoes fitted on dead axle/body frame. A sliding mechanism having shaped resembles to arc in orbit of brake disk. The mechanism having in two major parts, one is sliding and other is fixed which consists sliding bed and fitted with main power brake caliper. A pilot brake caliper, which is in sliding mode (floating mode), fitted on sliding part of the said sliding mechanism. At least one power transmitting means out of suggested means is needed to be linked the sliding pilot brake caliper to main power brake caliper to transfer the friction power of the pilot brake caliper after required amplification of the same. On braking action, the pilot brake caliper which is actuated by fluid line coming from master cylinder, actuates main power brake caliper through at least one power transmitting means as aforesaid to do the job as a SELF-ACTIVATED POWER BRAKE. | 11-12-2009 |
20090294224 | Electric disk brake - There is provided with an electric disk brake comprising: a single electric motor; a pair of rotary-to-linear conversion mechanisms to which rotation of the electric motor is transferred; a pressing member that presses a brake pad toward a disk rotor by means of each of the rotary-to-linear conversion mechanisms; and a reduction mechanism interposed between the electric motor and the pair of rotary-to-linear conversion mechanisms, wherein the reduction mechanism transfers rotation output, where input of the electric motor is expanded, to one side of the pair of rotary-to-linear conversion mechanisms, and transfers reaction force of the rotation output to the other side of the pair of rotary-to-linear conversion mechanisms. | 12-03-2009 |
20100032249 | DISK BRAKE - The invention relates to a disk brake with an electromechanical actuator which, for example, has a piezo-element, and with a hydraulic self-energizing device. In order to control the self-energizing effect, the invention provides a valve hydraulically between an auxiliary piston of the self-energizing device and a brake piston of the disk brake with which the brake piston can be hydraulically isolated from the auxiliary piston. This means that the self-energizing effect of the disk brake can be switched off. Using a modulated valve control and/or use of a proportional valve, the level of the self-energizing effect can be controlled or regulated. In order to avoid a blockage, the invention additionally provides a blockage protection valve with which the auxiliary piston or the brake piston can be connected to a hydraulic accumulator at ambient pressure. | 02-11-2010 |
20100044166 | SELF-BOOSTING DISK BRAKE - The invention relates to a self-boosting disk brake having a friction brake lining with a wedge on its rear side that faces away from the brake disk. The wedge supports the friction brake lining in a brake caliper when the disk brake is actuated. The wedge principle achieves self-boosting of the disk brake. The invention proposes providing a wedge-shaped support element between the wedge and a brake caliper, the support element supporting the wedge of the friction brake lining on the brake caliper. In order to actuate the disk brake, the support element is moved by an actuating device against the wedge. | 02-25-2010 |
20100193298 | SELF-AMPLIFYING ELECTROMECHANICAL FRICTION BRAKE - The invention relates to a self-amplifying electromechanical disc brake, having a friction brake lining, which is able to move on a helical path and having a rack-and-pinion mechanism for moving the friction brake lining and for actuating the disc brake. According to the invention, a rack of the rack-and-pinion mechanism is connected to the friction brake lining in articulating fashion and in the region of a pinion, an abutting support keeps the rack engaged with the pinion, with play, thus permitting the rack to pivot in order to compensate for the helical movement of the friction brake lining. | 08-05-2010 |
20100258386 | SELF-BOOSTING DISK BRAKE - The invention relates to a self-reinforcing, in particular electromechanical disk brake having a wedge mechanism as the self-boosting device, for example. The invention proposes that the actuating device be attached to a separate holder, which does not have forces or torques of the wedge mechanism applied thereto. | 10-14-2010 |
20100258387 | ANNULAR DISK BRAKE AND METHOD OF INCREASING A BRAKE PAD CLAMPING FORCE - The annular disk brake comprises a rotor disk and at least one brake pad provided on each side of the rotor disk. The brake pad or pads on one side are connected to a substantially axially-guided brake pad carrier. The brake has a force transmitting arrangement creating a force increasing amplification between an axially-actuated member and the carrier. This arrangement can increase the brake compactness and provide an even distribution of the braking force around the circumference of the rotor disk. A method of increasing a brake pad clamping force is also disclosed. | 10-14-2010 |
20100294601 | COMBINATION CYLINDER WITH PAWL-ACTUATED EMERGENCY RELEASE DEVICE FOR THE PARKING BRAKE - The invention relates to a combination cylinder including a service brake cylinder as an active service brake with at least one pressure-medium-actuated service brake piston which actuates a brake mechanism via a service brake piston rod, and a spring store brake cylinder as a passive parking brake with a spring store brake piston which is actuated by pressure medium counter to the action of at least one store spring, with the spring store brake piston transmitting the force of the at least one store spring to the service brake piston rod by a force-transmitting gearing in the parking braking situation. The invention provides for the gearing to be designed such that the movements of the spring store brake piston and of the service brake piston rod are coaxial and the force transmission ratio becomes greater with progressive stroke of the spring store brake piston. | 11-25-2010 |
20100307873 | COMBINATION CYLINDER WITH POWER-TRANSMITTING TRANSMISSION HAVING VARIABLE GEAR RATIO - The invention relates to a combination cylinder, including a service brake cylinder as an active service brake with at least one service brake piston actuated by a pressure medium, the piston actuating a brake mechanism via a service brake piston rod, and further including a spring-loaded brake cylinder as a passive parking brake with a spring-loaded brake piston actuated by a pressure medium against the action of at least one pre-loaded spring, wherein the spring-loaded brake piston in the event of the parking brake is actuated transmits the power of the at least one pre-loaded spring by means of a power-transmitting transmission to the service brake piston rod. According to the invention, the transmission is designed such that the movements of the spring-loaded brake piston and the service brake piston rod are coaxial and the power transmission increases with increasing stroke of the spring-loaded brake piston. | 12-09-2010 |
20110083927 | Self-Energizing Disk Brake With Wedge Elements - A part-lining disk brake is described, having an electromechanical actuator, a self-energizing application device with a wedge arrangement designed to press a brake lining against a disk brake, and at least two wedge elements of the wedge arrangement moveable relative to one another, arranged on one of a brake caliper frame and an auxiliary frame. The wedge elements are used to apply the brake lining, and act on the brake lining via a trapezoidal pressure plate. | 04-14-2011 |
20110100768 | Self-amplifying disc brake and method for actuating a self-amplifying disc brake - A self-energizing disk brake is described. The brake includes an electric actuator in which an activation force is amplified using a self-energizing device arranged between the electric actuator and a brake lining. The system includes a brake application unit for applying the brake lining to a brake disk with an application movement of the brake lining, relative to the brake disk, having a component extending parallel to a rotational axis of the brake disk and another component extending tangentially to the rotational axis of the brake disk. At least one electromotive drive for activating the brake application unit and at least two brake plungers of the brake application unit are provided. Pressure surfaces of the brake plungers have a recess with a ramp shaped contour for engagingly receiving a rolling element. | 05-05-2011 |
20110155519 | Self-Energizing Disc Brake and Brake Pad for the Same - A self-energizing disc brake includes a brake caliper held on a fixed brake carrier, an active-side and a reaction-side brake pad, which may be pressed against a brake disc, an actuating device with a self-energizing device and an adjuster device for compensating pad and/or disc wear. The self-energizing device has at least one pressure ram, in contact on the front face with the active-side pad by way of a split bearing and fixed by the end thereof facing the brake pad to a guide plate movably held in the brake carrier, designed such that the split bearing is enclosed by a seal arrangement when the self-energizing device is in a non-functioning state. | 06-30-2011 |
20110168502 | COMBINED VEHICLE BRAKE SYSTEM WITH HYDRAULICALLY AND ELECTROMECHANICALLY ACTUATABLE WHEEL BRAKES - A combined vehicle brake system, in particular for a motor vehicle, includes an electromechanical service brake system for a front axle of the vehicle. The electromechanical brake system has at least one electromechanically actuatable wheel brake ( | 07-14-2011 |
20110209951 | Pneumatically Actuable Disc Brake - A pneumatic disc brake has a caliper which straddles a brake disc, brake pads pressable against the brake disc, wherein a brake-application-side brake pad can be actuated by a brake lever of a brake application device pivotable about an eccentric axis. Against the end side, the brake lever bears a brake ram which is coupled at the other side to the brake pad or to a guide plate coupled thereto. Two pressure rams are aligned in the same direction and spaced apart from the brake ram. The pressure rams are connected in each case to the caliper and to the brake pad or to the guide plate and have a self-energizing device. The caliper has spherical-cap-shaped bearing receptacles in which rest corresponding plain bearing elements, by which the brake lever, and the pressure rams are supported on the caliper. | 09-01-2011 |
20110209952 | Pneumatically Actuable Disc Brake - A pneumatic disc brake includes a caliper which straddles a brake disc, brake pads pressable against the brake disc and a rotary lever actuated brake application device, and a self-energizing mechanism. The brake lever is pivotable about an eccentric axis by a broke cylinder plunger. A self-energizing factor is selected to ensure that the brake automatically releases after braking events. The brake lever is supported on a spherical bearing element mounted to the caliper and forming the eccentric axis. The brake lever bears against a bearing ball which is arranged above the bearing element in the direction of the plunger engagement point, which bearing ball is positioned in a brake ram coupled to the brake pad. | 09-01-2011 |
20110220440 | Brake - The invention relates to a brake having a brake shoe ( | 09-15-2011 |
20140251736 | DISC BRAKE - A disc brake includes a caliper main body configured to have a pad assembling space that is disposed across over a disc rotor and opens toward an approximate middle thereof in a rotor radial direction and a connector part that crosses the pad assembling space in a rotor axial direction, and a pad spring that is engaged with the connector part of the caliper main body by a pair of claw portions facing each other, is installed on the caliper main body, and biases the brake pads in a rotor rotational outlet direction and inward in the rotor radial direction. The pad spring has a symmetrical shape with respect to the center in a longitudinal direction thereof, and the pair of claw portions are engaged with the connector part in a state in which the center in the longitudinal direction is offset in a rotor rotational direction with respect to the center in the rotor rotational direction of the brake pads. | 09-11-2014 |
20140326547 | BRAKE CYLINDER DEVICE AND DISK BRAKE DEVICE - The present invention provides a small brake cylinder device that can increase braking force output from a brake output portion that moves along with a rod, while suppressing an increase in the device size. A piston defines a pressure chamber and surrounds the axis of the rod inside a cylinder body, and moves in a linear direction that is parallel to the movement direction of the rod. When pressure fluid is supplied to the pressure chamber, the piston moves in the backward movement direction relative to the cylinder body in resistance to biasing force from a rod biasing spring. Swinging members of a force amplifying mechanism swing due to being biased by the piston moving in the backward movement direction, and moves the rod by biasing it in the forward movement direction. The force amplifying mechanism amplifies the drive force generated by the piston and applies it to the rod. | 11-06-2014 |
20150060215 | FRICTION BRAKE DEVICE - A friction brake device has a brake rotor which rotates around a rotation axis, brake pads as rotating friction members which rotate around an autorotation axis parallel to the rotation axis, rotational torque transmission devices which mutually transmit rotational torques between the brake rotor and the brake pads without depending on the friction force between the brake rotor and the brake pads, and pressing devices which press the brake pads against the brake rotor. The pressing devices press the brake pads against the brake rotor by way of non-rotating friction members which are supported so as not to rotate around the autorotation axis. | 03-05-2015 |
20150075921 | FRICTION BRAKE DEVICE - A friction brake device having: friction members which are pressed against a pair of friction surfaces that are rotatable around a rotation axis and opposed to each other; a force increasing mechanism which transmits rotational torque between the friction members, transforms the rotational torque to the force separating the friction members along the rotation axis through a wedge action, and thereby increasing the pressing force; a pressing force control mechanism which controls a force with which at least one of the friction members is pressed against the associated friction surface; and a normal position-recovering mechanism which returns the friction members to their normal positions when the force controlled by the pressing force control mechanism is 0. | 03-19-2015 |
20150114767 | FRICTION BRAKE DEVICE - A friction brake device includes first and second pressing members which press frictional engagement members against a pair of friction surfaces, respectively, that are rotatable around a rotation axis as mutually opposed, a force transmission mechanism which transmits rotational torque between the pressing members, transforms the rotational torque into the force separating the pressing members from each other along the rotation axis through a wedge action, and transmits reaction force of the pressing force between the pressing members, a pressing force control mechanism which control the force with which at least one of the pressing members presses the associated frictional engagement member against the associated friction surface, and a rotational torque bearing member which bears the rotational torque transmitted from one of the pressing members to the other of the pressing members by way of the other pressing member. | 04-30-2015 |