Class / Patent application number | Description | Number of patent applications / Date published |
188720700 | By inclined surface (e.g., wedge, cam or screw) | 45 |
20080230330 | BRAKING DEVICE HAVING A WEDGE MECHANISM - A braking device includes a brake block which can be actuated by a wedge mechanism which has first and second wedge elements. Each wedge element has at least one contact face beveled in the manner of a wedge, with the contact faces of the wedge elements opposing one another. The brake block is fitted to a side of one of the wedge elements which is remote from the contact face. The one wedge element can be moved in reciprocating fashion in a longitudinal direction relative to the other wedge element so that, owing to the wedge action of the beveled contact faces, the brake block moves in a transverse direction perpendicular to the longitudinal direction toward or away from the brake disk. At least one linear actuator, which is free from rotational movement and is mechanically connected to the one wedge element, moves the one wedge element back and forth in the longitudinal direction. | 09-25-2008 |
20080314694 | SINGLE MOTOR ELECTRONIC CONTROLLED WEDGE BREAK SYSTEM - The present invention provides a single motor electronic controlled wedge brake system that can achieve parking brake, frictional correction of pads, and fail safe as well as travel brake through the drive control using a single motor. Accordingly, it is possible to achieve a simple configuration of the electronic controlled wedge brake system, reduce manufacturing cost, and facilitate control. | 12-25-2008 |
20080314695 | SINGLE MOTOR ELECTRO WEDGE BRAKE SYSTEM USING SOLENOID MECHANISM FOR IMPLEMENTING ADDITIONAL FUNCTIONS - The present invention provides an electro wedge brake (EWB) system that implements a main braking function by using power generated by one motor. Further, the electro wedge brake system implements various additional functions such as a function for maintaining a set clearance of a pad, a Fail-Safe function, and an EPB function, by using that the forward movement of a push rod shaft screwed using a NSL (Non-Self Locking) type screw is restrained or released on the basis of ON/OFF control of the solenoid mechanism interlocked with the main braking function motor. Accordingly, since only one motor is used to generate power, it is possible to reduce the number of parts and to simplify the structure. | 12-25-2008 |
20080314696 | DEVICE FOR BRAKING AN ELONGATED ROTATING BODY, SUCH AS A ROTARY SHAFT, AND TRANSMISSION INTEGRATING SUCH A BRAKING DEVICE - A device for braking an elongated rotating body, includes at least two parts with coaxial conical surfaces, able to be slipped onto the body, and one, a so-called male cone, mounted integrally in rotation with the body, and the other, a so-called female cone, mounted fixed in rotation relative to the body. The female cone assumes the shape of a wheel with an axial bore with a conical bearing, and the male cone has a center recess. The cones are controlled in terms of axial relative movement by a control element. The male cone is, when the cones are close to one another, corresponding to the braking position, housed inside the axial bore of the female cone, with its conical external peripheral surface being held, by contact with a support, with the conical bearing of the female cone. | 12-25-2008 |
20090065311 | SINGLE MOTOR ELECTRONIC WEDGE BRAKE SYSTEM GENERATING SOLENOID ASSISTING FORCE - While driving one motor, an electronic wedge brake (EWB) system according to an embodiment of the present invention implements a main braking function by self-energizing caused by a wedge operation. Since only one motor is used, it is possible to reduce the number of parts and to simplify the structure. Further, the electronic wedge brake system implements various functions, such as a function for maintaining a set clearance of a pad, a Fail-Safe function, and an EPB function by using a solenoid interlocked with the NSL (Non-Self Locking) type screw that moves in the axial direction. When the electronic wedge brake system is operated, an axial reaction force transmitted from the pad is dispersed using a frictional force caused by a NSL (Non-Self Locking) type push rod shaft, which reduces a load of a solenoid which constrains a push rod shaft. As a result, a low-performance solenoid may be used. | 03-12-2009 |
20090071768 | Mechanical Disc Braking Assembly - The disc brake assembly ( | 03-19-2009 |
20090071769 | SINGLE MOTOR ELECTRONIC WEDGE BRAKE SYSTEM LOCKING PARKING FORCE - While driving one motor, an electronic wedge brake (EWB) system according to an embodiment of the present invention implements a main braking function by self-energizing caused by a wedge operation. Since only one motor is used, it is possible to reduce the number of parts and to simplify the structure. Further, the electronic wedge brake system implements various functions, such as a function for maintaining a set clearance of a pad, a wheel lock prevention function, and an EPB function by using a solenoid interlocked with a NSL (Non-Self Locking) type screw that is moved in an axial direction and supports an axial reaction force transmitted from a pad. Furthermore, a NSL (Non-Self Locking) type push rod shaft, which supports the axial reaction force, is constrained using power of the motor during park braking, and accordingly, even when the solenoid is turned off, it is possible to stably and reliably park a vehicle. | 03-19-2009 |
20090095579 | Electric Linear-Motion Actuator and Electric Brake Assembly - An object is to increase the linear driving force in a linear-motion actuator of the type in which the rotary motion of the rotor shaft of an electric motor is converted to the linear motion of planetary rollers disposed between the rotor shaft and an outer ring member by rotating the planetary rollers about the axis of the rotor shaft and also about their own axes. | 04-16-2009 |
20090101453 | Electromechanical Zero Backlash Brake - The invention relates to an electromechanical brake ( | 04-23-2009 |
20090107777 | PARKING BRAKE DEVICE OF DISK BRAKE - Disclosed is a parking brake device of a disk brake. The parking brake device includes a caliper housing including a finger unit and a body part to push pad plates, which are installed at both sides of a disk, to closely make contact with the disk, a cylinder provided in the body part of the caliper housing, a piston slidably provided in the cylinder to move the pad plates toward the disk by using driving force generated from hydraulic pressure or mechanical thrust force, a cam unit provided at a rear portion of the cylinder to transform rotation motion of a parking brake lever into linear motion of the piston, and including an operating shaft, a ramp, and a ball, and a push rod which delivers linear motion of the cam unit into the piston. A flange part of the push rod is coupled to an open front end of the ramp having a cylindrical shape by using grooves or protrusions, so that the push rod is easily prevented from rotating. | 04-30-2009 |
20090152057 | BRAKE DEVICE AND MOTOR WITH SPEED REDUCING MECHANISM - A brake device arranged between a drive shaft and a driven shaft arranged coaxially with the drive shaft is disclosed. The brake device includes a first rotor, a second rotor, an engagement member, a braking mechanism, and a cam mechanism. The braking mechanism includes a movable friction member rotatable integrally with the second rotor, a fixed friction portion, and an urging member that urges the movable friction member toward the fixed friction portion. When rotational force is provided from the drive shaft to the first rotor, the cam mechanism permits transmission of rotation of the drive shaft to the driven shaft. When the rotational force is provided from the driven shaft to the second rotor, the cam mechanism restricts rotation of the driven shaft. The cam mechanism is provided independently from the engagement member. | 06-18-2009 |
20090211855 | Ball ramp brake - A ball ramp brake including a housing, a disc assembly within the housing, and an annular rotatable actuator to actuate the brake by compressing the disc assembly. The rotatable actuator includes a plurality of depressions oriented circumferentially therein which become progressively shallower in a first circumferential direction. A plurality of depressions are circumferentially oriented in a surface of the housing and become progressively shallower in a second circumferential direction. The depressions in the actuator and the depressions in the housing each have a first angle of depression that is steeper than a second angle of depression. A boot seal may be provided between the fluid chamber of an actuating cylinder and the inner area within the housing to prevent fluid leakage. In addition, a cooling chamber may be provided in the housing to improve the brakes efficiency. | 08-27-2009 |
20090218181 | SERVO MOTOR BRAKE DEVICE - A small-sized, lightweight servo motor brake device ( | 09-03-2009 |
20100012441 | Play-free drive for an electromechanical brake device - The invention relates to a coupling device for transmitting a linear movement of a drive ( | 01-21-2010 |
20100072004 | Wheel Braking Mechanism - A wheel braking mechanism | 03-25-2010 |
20100140028 | Electronic Wedge Brake System - An electronic wedge brake system includes an upper wedge member, one end portion of which is coupled to an inner pad provided to one side of a disc, and the other end portion of which defines an upper wedge surface thereon, a lower wedge member disposed adjacent to the upper wedge member and connected to a stationary member, the lower wedge member defining a lower wedge surface thereon in a side facing the upper wedge surface, at least a wedge roller provided between the upper and lower wedge surfaces, a roller grip plate slidably coupled to the upper wedge member for guiding a motion of the upper wedge member, and an actuator coupled to the stationary member and the roller grip plate and configured to selectively move the roller grip plate and the upper wedge member so that the inner pad can be engaged to or disengaged from the disc. | 06-10-2010 |
20100147633 | BRAKE SYSTEM - A brake system of the present invention is a dual braking system, which includes an ECU that controls parts for braking when a brake pedal is operated, a main brake that is controlled by ECU by locking a wheel disc for braking in normal braking, and a sub-brake that is mounted on the wheel disc and achieves sub-braking function to achieve emergency braking for safety by locking the wheel disc by control of ECU that has detects failure of main brake. Therefore, it is possible to improve safety by achieving emergency braking while achieving F-S (Fail-Safe), when the motor of main brake fails. Further, it is possible to also achieve stable FR (Failure Rate) in an EWB or an EMB that is practically applied to a vehicle, as in a hydraulic brake system, and to expedite common use of brake systems where a BBW (Brake By Wire) technology, such as EMB and EWB, is applied. | 06-17-2010 |
20100258388 | DISK BRAKE FOR VEHICLES - Disclosed herein is a disk brake for vehicles including a disk rotated together with a wheel of a vehicle, a pair of friction pads disposed at both sides of the disk opposite to each other, and a pair of wedge members installed on the rear surfaces of the friction pads, wherein the upper ends of the friction pads are respectively hinged to the wedge members, and the lower ends of the friction pads are supported by elastic members so as to be protruded toward the disk. Even though friction between the disk and the friction pads occurs under the condition that braking is not performed, the friction is limited to regions between the edges of the lower ends of the friction pads and the disk, thereby reducing frictional force between the disk and the friction pads and thus preventing unintended braking. | 10-14-2010 |
20110056776 | ELECTRONIC WEDGE BRAKE APPARATUS - The present invention makes it possible to increase safety of parts and ensure durability and smooth operability in braking by increasing axial stiffness of a motor while keeping the spring effect of connecting springs driving an upper wedge with force from the motor. | 03-10-2011 |
20110127123 | DISC BRAKE - Disclosed is a disc brake capable of constantly maintaining the braking performance by preventing the eccentric abrasion of a pad upon the braking operation. The disc brake includes a disc rotating together with a wheel, inner and outer friction pads installed at both sides of the disc, respectively, a caliper housing supporting the outer friction pad, a wedge member installed at a rear side of the inner friction pad and formed at a rear surface thereof with an inclined surface, a support member fixed to the caliper housing and formed with an inclined surface corresponding to the inclined surface of the wedge member, a driving device operating the wedge member for a braking operation, and a hinge unit for coupling the wedge member to the friction pad. The disc brake further includes an elastic member coupled to the wedge member and the friction pad while interposing the hinge unit therebetween. | 06-02-2011 |
20120080275 | THRUST GENERATOR AND DISK BRAKE - A ball-and-ramp mechanism of a thrust generator includes a rotary ramp member and a rectilinear ramp member, each having a plurality of sloped grooves sloped along a circumferential direction and having an arcuate diametrical cross-section, and a spherical member interposed between the sloped grooves of the ramp members to transmit force from the rotary ramp member to the rectilinear ramp member. Each of the sloped grooves has regions varying in the curvature radius of the diametrical cross-section in a track area where the spherical member contacts the sloped groove. Accordingly, it is possible to improve the durability of the rotary ramp member and the rectilinear ramp member. | 04-05-2012 |
20120118681 | INITIALIZING METHOD OF BRAKE-BY-WIRE SYSTEM IN VEHICLE - A brake-by-wire system uses a time sequence type that determines road conditions before initialization, initializes EWBs (Electro Wedge Brake) at the left/right front wheels and EMBs (Electro Mechanical Brake) at the left/right rear wheels with time differences on the basis of the determined road conditions. Therefore, the clamping force in at least any one of the EWBs and the EMBs is maintained in any circumstances, thereby avoiding a situation that all the braking force of a vehicle is removed. | 05-17-2012 |
20120160618 | BRAKE CALIPER OF A DISK BRAKE - A brake caliper of a disk brake, includes a housing having a bore hole, in which an axially displaceable piston is arranged, and a shaft for actuation, which is supported so that it is rotatable and axially displaceable in the housing, and an adjusting device having a spindle to compensate for brake lining wear, an axial bearing being provided between the spindle and the shaft. For an improved wear resistance, it is proposed according to the invention that the axial bearing be integrally formed from a homogeneous material matrix. | 06-28-2012 |
20130327601 | ELECTRIC BRAKE SYSTEM - An electric brake system includes a plurality of planetary rollers kept in rolling contact with the radially outer surface of a rotary shaft, a carrier which is restrained from axial movement, an axially movable outer ring member, and a friction pad provided at the axially front end of the outer ring member. The rotation of the rotary shaft is converted to axial movement of the outer ring member, thereby pressing the friction pad with the outer ring member. The brake system further includes a reaction force receiving member provided axially rearwardly of the outer ring member for receiving an axial rearward reaction force applied to the outer ring member when the friction pad is pressed by the outer ring member. A displacement sensor measures the displacement of the reaction force receiving member, thereby detecting the pressing force of the friction pad. | 12-12-2013 |
20140041971 | Brake and Method for the Installation Thereof - A rim brake having a right arm and a left arm respective with one upper and one lower longitudinal portion separated from one another by a pivot bearing. The lower longitudinal portion is provided for holding a brake pad and the upper longitudinal portion engages with at least one hydraulic cylinder through a wedge element. The hydraulic cylinder is disposed between the right arm and the left arm and is configured to move the wedge element. A method for the installation of a hydraulic brake having a master unit and a slave unit connected to a hydraulic line is also provided. | 02-13-2014 |
20150136539 | DISK BRAKE DEVICE - A disk brake device has a rotor, a carrier, a caliper, an inner pad, and a braking operation mechanism. The braking operation mechanism includes a base plate held by the caliper; a wedge plate which holds the inner pad; a first motion conversion mechanism which moves the wedge plate in a direction perpendicular to a braking surface while moving the wedge plate to slide in a rotating direction of the rotor; an electric motor which includes a motor output shaft which outputs a rotational driving force; and a second motion conversion mechanism which includes a cam drive shaft and moves the wedge plate to slide in the rotating direction of the rotor in parallel to the braking surface. The electric motor is attached to the caliper such that the motor output shaft is positioned on the outer circumferential side with respect to the cam drive shaft. | 05-21-2015 |
20150323026 | BALL RAMP MECHANISM, LINEAR MOTION ACTUATOR, AND ELECTRIC DISC BRAKE DEVICE - A ball ramp mechanism is configured such that a driving-side rotor and a driven-side rotor are located on the same axis in opposing relationship with each other; three opposed pairs of arc-shaped ramp grooves are provided on the respective opposing faces of the two rotors at uniform intervals in the circumferential direction, with the depth thereof being changed gradually in the circumferential direction and the direction of the change being made opposite therebetween; a ball is incorporated between each set of the opposing paired ramp grooves; the balls are retained by the cage; and flexibility is imparted to pillar sections defined between pockets of the cage so as to make the pillar sections elastically deformable; dimensional variations due to manufacturing tolerances of the ramp grooves are absorbed via elastic deformation of the pillar sections so that each of the plurality of balls is enabled to contact the ramp grooves uniformly. | 11-12-2015 |
20150362031 | ELECTRIC DISK BRAKE - Disclosed herein is an electric disk brake including: a carrier in which a pair of pad plates for pressing both sides of a rotating disk together with wheels are installed to make advance and retreat; a caliper housing that is slidably installed in the carrier and has a cylinder in which a piston is installed to make advance and retreat due to brake hydraulic pressure; an adjuster disposed in the piston; a push rod that is installed in the cylinder and is screw-coupled to the adjuster; a ramp unit that is installed to penetrate the rear of the cylinder, converts a rotation motion into a rectilinear motion by receiving a rotation force from an actuator that generates a parking brake force, and presses the push rod toward the piston; and an elastic member that is disposed in a spring case formed between an inner circumferential surface of the cylinder and the push rod and provides an elastic force to the push rod, further including a connector having one end coupled to a rotating ramp plate of the ramp unit so that the connector is rotated together with the rotating ramp plate, and having the other end connected to a final output gear among a plurality of gears configured to decelerate a rotation force generated from the actuator so that the rotation force is transferred only in a direction in which a brake force is generated in the rotating ramp plate, wherein at least one hole is spaced by a predetermined distance apart from a center of the connector in a radial direction and is formed in an arc shape, and protrusions are formed in the final output gear to penetrate the at least one hole and to rotate, and the connector includes: a first coupling part that penetrates a center of the final output gear and is coupled to the rotating ramp plate; and a second coupling part, which extends from the first coupling part in a radial direction and in which the at least one hole is formed in the radial direction of a center of the second coupling part. | 12-17-2015 |
20160025168 | ELECTRICALLY ACTUATED FRICTION BRAKE - To reduce the attainable actuation times of an electrically actuated friction brake and simultaneously keep the friction brake inexpensive, a second transmission element ( | 01-28-2016 |
188720800 | Screw or helical cam | 16 |
20090095580 | BRAKE WITH SPINDLE AND CAM DISK ARRANGEMENT - A brake, in particular for motor vehicles, has a friction member ( | 04-16-2009 |
20090294225 | BRAKE DEVICE - The invention relates to a brake device for braking a moving brake body ( | 12-03-2009 |
20100116599 | DISC BRAKE FOR VEHICLE - A disc brake for a vehicle, reduced in volume by improving a driving unit thereof that presses a wedge and therefore conveniently installed in the vehicle. The disc brake includes a disc rotated along with wheels of the vehicle, inner and outer friction pads disposed at both sides of the disc, a caliper housing supporting the outer friction pad, a wedge member disposed at a rear side of the inner friction pad and formed with inclined surfaces on a rear side thereof, a supporting member formed with inclined surfaces corresponding to the inclined surfaces of the wedge member and fixed to the caliper housing, and a driving unit operating the wedge member to perform a braking operation. The driving unit includes a screw axis, a driving motor, a worm gear constituted by a worm and a worm wheel, and a moving member. | 05-13-2010 |
20100122877 | ELECTRIC DISC BRAKE - An electric disc brake including friction pads to press a disc, a carrier to support the friction pads, a caliper housing supported by the carrier to be movable back and forth so as to press the friction pads, and a pressing device to press the friction pads. The pressing device includes a pressing member mounted to the caliper housing and moved back and forth to thereby press and release any one of the friction pads, a screw axis connected to the pressing member, a drive shaft constituted by a worm wheel connected to the screw axis and a worm engaged with the worm wheel and mounted across the screw axis, and a motor rotating the drive shaft forward and backward. | 05-20-2010 |
20110198163 | AIRCRAFT ELECTRIC BRAKE ACTUATOR ASSEMBLY WITH LINE REPLACEABLE ACTUATOR BRAKE - An aircraft electric brake actuator assembly includes an actuator housing, a motor housing, an actuator, an electric motor, and an actuator brake. The actuator housing is configured to be mounted on an aircraft landing gear. The motor housing is coupled to the actuator housing and is removable therefrom. The motor housing is also accessible when the actuator housing is mounted on an aircraft. The electric motor is disposed within the motor housing and is coupled to the actuator. The actuator brake is disposed within the motor housing and is removably coupled to the motor. | 08-18-2011 |
20110290598 | Stop Brake for a Tripod Head - The invention relates to a stop brake for a tripod head ( | 12-01-2011 |
20140000993 | ELECTROMECHANICAL BRAKE SYSTEM | 01-02-2014 |
20150330487 | BALL SCREW DRIVE, IN PARTICULAR FOR A LOCKING BRAKE OF A MOTOR VEHICLE - A ball screw drive ( | 11-19-2015 |
20150362033 | A VEHICLE ELECTRIC BRAKING DEVICE - Rotational motion of a shaft member rotationally driven by a motor is converted by a screw member into translational motion of a pressing member. An outer periphery of a cap member is brought into slide contact with a first cylindrical part of the pressing member so that the cap member is relatively movable in an axial direction of the pressing member and is relatively unrotatable about its axis. An inner periphery of the cap member is brought into slide contact with a second cylindrical part of the shaft member so that the cap member is relatively movable in an axial direction of the shaft member and is relatively rotatable about its axis. The first cylindrical part, the second cylindrical part, and the cap member partition a storage chamber connected to one end of the screw member, and a lubricant for lubricating the screw member is filled inside the storage chamber. | 12-17-2015 |
20160010710 | MECHANICAL DISC BRAKE | 01-14-2016 |
20160032991 | MOBILE BRAKE DEVICE - A transmission or geared motor includes a mobile brake device which has a brake caliper provided with at least one friction lining on a caliper head of the brake caliper and an adjusting element on a caliper handle of the brake caliper. The friction surface can be moved by adjusting the adjusting element. The mobile brake device further includes a mounting device for detachably mounting the brake caliper on the transmission or the geared motor. The brake device is detachably mounted on the transmission or the geared motor, and the friction lining can be pressed against a brake disk of the transmission or the geared motor when the adjusting element is actuated. The brake disk is connected for conjoint rotation to a shaft of the transmission or the geared motor. | 02-04-2016 |
20160144843 | Brake Cylinder Device and Brake Device - The purpose of the invention is to ensure proper action of a latch member. A brake cylinder device ( | 05-26-2016 |
20160153509 | DISC BRAKE | 06-02-2016 |
20160377136 | ELECTRO-MECHANICAL BRAKE FOR INCREASING BRAKING FORCE - An electro-mechanical brake for increasing a braking force is provided. The electro-mechanical brake for increasing the braking force according to an embodiment of the present invention may include the upper pad together with the inner pad and the outer pad, the inner pad may pressurize the inner side surface of the disk by the movement of the moving block by the rotation of the screw, the outer pad may pressurize the outer side surface of the disk, the upper pad may also pressurize the cylindrical surface of the upper end of the disk, and thus the braking force may be increased since the additional braking force can be further generated by pressurizing the cylindrical surface of the upper end of the disk compared with a case of pressurizing the inner side surface and the outer side surface of the disk. | 12-29-2016 |
20190145475 | ELECTRIC BRAKE DEVICE AND VEHICULAR BRAKE SYSTEM INCLUDING ELECTRIC BRAKE DEVICE | 05-16-2019 |
20190145505 | Low-Cost Nut For Vehicle Braking System | 05-16-2019 |