Abstract: A brake pad holder designed for adjustably mounting a bicycle brake pad to a brake caliper arm. The brake pad holder is designed to maintain the mounting arm thereof in an orthogonal orientation with respect to the brake caliper arm, while the brake pad holder is adjustable in three degrees of motion. The brake pad is removable for repair and replacement thereof, independently from the brake pad mount or other components of the brake pad assembly. The brake pad mount defines a threaded opening for receiving a screw which, when installed, is received within a recess defined by the brake pad. A mounting arm receptor is defined in the bottom wall of the brake pad mount and defines a concave interior configuration which defines a cavity between the mounting arm receptor and the brake pad. A through opening is centrally defined for receiving the mounting arm. The mounting arm is a bolt having a head configured to be received within the cavity defined between the mounting arm receptor and the brake pad.

Abstract: A brake rotor includes a disc-shaped carrier and friction rings arranged on or on top of the carrier, so that the friction rings and carrier form a single piece construction. The carrier and friction rings are made from carbon/carbon materials and ceramic materials respectively. The carrier has a hat-shaped cross-sectional shape with a flanged outer edge and the friction rings are attached to each side of the flanged edge of the carrier. The brake rotor may be directly mounted onto the wheel flange via the carrier using bolts.

Abstract: A brake pad includes a friction material with a braking surface to contact a rotor disc. The braking surface has a leading edge relative to rotation of the rotor disc, an opposed trailing edge, and inner and outer circumferentially extending edges joining the leading and trailing edges. A plurality of grooves are formed in the friction material and open onto the braking surface. The grooves are angled from a leading end of the grooves rearwardly relative to a radial line and are curved from their leading end to their trailing end, and form substantially the arc of a circle when viewed in a direction perpendicular to the braking surface.

Abstract: The present invention is directed to a brake shoe adapted for use in a braking mechanism that comprises a support member and a substantially metal free brake pad disposed on the support member. The brake pad may be composed of polymerized urethane as a major constituent thereof. More particularly, the brake pad may be composed of a mixture including urethane, a urethane reactant and a urethane curing agent. The durometer hardness of the brake pad may be between 80 and 95 on the A-scale. The support member may include a connector and a base plate, and the brake pad may be formed as an integral one-piece molded construction with the base plate being embedded in the brake pad. The brake pad may have a contact surface that is contoured so that the brake pad has varying thickness to differentially contact a moving surface.

Abstract: A brake device includes a shoe holder, and a brake shoe held by the shoe holder. The brake shoe has a plurality of outwardly projecting brake parts, a plurality of grooves each of which is formed between two adjacent ones of the brake parts and each of which is defined by a pair of groove walls, a plurality of flat contact faces formed on the brake parts, respectively, and spaced apart by the grooves, and a pair of buffer faces formed at two opposite ends of each of the contact faces to connect each of the contact faces to two adjacent ones of the groove walls. Each of the buffer faces extends inwardly of the corresponding one of the contact faces.

Abstract: The present invention relates to a brake shoe for a spot-type disc brake, in particular floating-caliper brake, which includes a lining carrier plate that has on its front side a brake lining intended for application to a brake disc and, in addition, is provided with a noise-damping means. To further improve noise damping, the lining carrier plate has a noise-damping radial layer made of an appropriate material on its radial contact points towards the brake carrier and/or the brake housing. Further, the noise-damping layer is provided by a deflected portion of the damping plate.

Abstract: In a brake jaw (5) for disc brakes with partial linings having a brake disc (1), in particular for trucks, comprising a lining support plate (2) and a brake lining (4) fastened to the lining support plate (2), it is provided that for compensation of the radially different heat distribution in the brake disc (1), a radial profiling of the frictional power induced via the brake lining (4) is performed, the profiling being opposite to the heat distribution.

Abstract: In the disk brake of the present invention, each arm of the carrier has a projecting pad guide, and each friction pad has recesses fitted onto the pad guides of the carrier. Each pad spring has integrally formed therewith a generally U-shaped guide plate which is bent along the pad guide and resiliently engaged with and presses against the pad guide to thereby mount the pad spring on the arm of the carrier. Each recess of the friction pads includes a groove at a position corresponding to at least one bent portion of the guide plate, which is separated from a corner portion of the pad guide and deformed into a projection toward the recess.

Abstract: An arcuate brake lining apparatus for use with an arcuate brake drum is disclosed that includes a brake shoe table having an inner edge and an outer edge. There is an outer lip on the outer edge of the brake shoe table. A gripper is detachably attached to the brake shoe table. An inner lip is provided on the gripper. There is at least one brake lining segment having a braking surface configured for engaging an arcuate brake drum. The at least one brake lining segment has an inner edge and an outer edge, the inner edge being configured for engaging the inner lip of the gripper, and the outer edge being configured for engaging the outer lip of the brake shoe table. In the method of using the arcuate brake lining apparatus, when the at least one brake lining segment is to be replaced, the gripper is removed from the brake shoe table, and the at least one brake lining segment is moved in a direction from the outer edge toward the inner edge for disengaging the outer edge from the outer lip.

Abstract: A brake lining for partial-lining disk brakes, particularly of rail vehicles, wherein several friction or lining elements are provided which can be fastened to a support plate individually or in groups, in which case several support plates are arranged either directly on the lining holder of the disk brake arrangement or on a lining support which can be fastened to the lining holder. For rendering the surface pressure generated during the braking uniform, the support plates are swivellably linked to the lining support or lining holder, in the case of a group-like assignment, several (at least two) lining elements being swivellably arranged on the support plate.

Abstract: A mounting assembly for a disc brake pad is disclosed. The disc brake pad has a first end portion provided with a finger engaged in a slot of a reaction block to partially restrain the disc brake pad. The disc brake pad has a substantially unrestrained second end portion which is cantilevered from the first end portion. Braking forces are reacted virtually exclusively against the reaction block which is located externally of and separated from the disc brake caliper assembly.

Abstract: A mounting assembly for a disc brake pad which has a first end portion provided with a finger engaged with a reaction surface in a slot of a reaction block to partially restrain the disc brake pad when it is applied against a rotor. The reaction surface is machined at an angle or in an arc to counterbalance the couple which forces the leading end of the disc brake pad inwardly against the rotor. The disc brake pad has a substantially unrestrained second end portion which is cantilevered from the first end portion. Braking forces are reacted virtually exclusively against the reaction block which is located externally of and separated from the disc brake caliper assembly.

Abstract: A lining is attached on a front surface of a back plate and a protrusion for the engagement with a caliper is formed on a back surface of the back plate, and a recess is formed at a tip end of the protrusion and the cross-sectional view of the protrusion is H-shaped.

Abstract: A brake shoe assembly is formed by precision stamping a net shaped web blank out of steel forming a series of tabs projecting outward therefrom, stamping a corresponding table member provided with tab receiving apertures, and bending the table member into a semi-cylindrical segment. The web blank and the table are assembled causing the web tabs and table apertures to be interlocked securely locating the parts temporarily together. The cooperating tabs and projections are then permanently joined together using a hot staking process which quickly heats, radially deforms and self quenches the tab to metallurgically strength the joint.

Abstract: A brake shoe assembly including retainer members which aid in retaining the brake shoe lining in position on the brake shoe table. The retaining members include distal flanges which abut beveled distal edges of the brake shoe lining and a central wedge which, when tightened to the brake shoe table, forces the brake shoe lining plates outwardly and into the distal flanges, holding the brake shoe lining plates in compression between the central wedge and the distal flanges.

Abstract: A bicycle brake shoe holder includes a support component for supporting a brake shoe, wherein the brake shoe has a rim-contacting surface facing laterally inward. A tire guide component having a tire guide portion extends laterally outward, wherein the tire guide portion includes a tire guide surface formed at an inclined angle relative to the rim-contacting surface. A protrusion member is disposed on the tire guide component and faces laterally inward. The protrusion member preferably is formed from a material that is softer than the material forming the wheel rim.

Abstract: A friction brake includes a friction disk assembly having high dynamic stability against undesired vibration during a braking event. The friction disk assembly comprises an annular structural carrier of carbon and/or ceramic or other suitable structual material, preferably a fiber reinforced composite material, including a plurality of recessed regions and torque drive notches spaced around its circumferential direction, and a friction lining of carbon and/or ceramic or other suitable structural material, preferably a fiber reinforced composite material, mounted on the carrier, the friction lining having a flat wear (rubbing) face and an obverse face including raised areas corresponding to and matingly engaging the recessed regions of the carrier to prevent rotation of the lining relative to the carrier. The lining may be formed of of virgin or recycled carbon, ceramic or other suitable friction material. The lining may be retained to the carrier by mechanical fasteners such as rivets or clips.

Abstract: A light-weight brake shoe for a rotary disc brake having a removable and replaceable friction pad. The brake shoe provides a thin-walled backing plate having a side wall for cooperatively engaging the friction pad. The side wall of the backing plate has a pair of raised lip portions for cooperatively engaging a complementary groove provided in the bottom wall of the friction pad. An irregularly shaped spring cooperatively engages a tapered groove provided in the top wall of the friction pad for biasing the friction pad into cooperative engagement with the side wall of the backing plate. The tapered groove of the friction pad provides a downwardly and inwardly biasing force in order that the friction pad maintains cooperative engagement with the side wall of the backing plate while also ensuring that the friction pad avoids dragging on the brake rotor of the vehicle when the brake is not activated.

Abstract: A center brake for automobiles is disclosed. The brake has braking teeth (which may be triangular, trapezoidal or of other shape) formed on the outer surfaces of the brake shoes and on the inner surface of the brake drum for improved brake performance. Preferred brake drum material is cast iron and preferred brake shoe material is non-toxic to avoid health damage to those who come into contact with the brake. The mechanical structure of the preferred brake results in a system which reliably carries out its brake shoe return function even when there is a failure or malfunction of brake return springs or ice on the brake during cold weather. The preferred brake can be alternatively actuated by a switch or lever.

Abstract: A brake pad assembly is provided comprising a backing plate, a plurality of metal channel members having side walls upwardly extending from a base, the channel members attached to the backing plate, friction material molded onto the backing plate over the channel members, whereby the side walls of the channel members are bent inward under the molding pressure to mechanically lock the friction material in place on the backing plate. Methods of making the brake pad assembly are also disclosed.

Abstract: A wet frictional plate including a made of a metal plate that is formed so as to have a plate thickness which changes to gradually increase from its outer circumferential portion toward its inner circumferential portion. Frictional materials are bonded to the surfaces of the metal plate while they are pressed and heated to make the frictional surfaces of the frictional materials parallel to each other. As a result, the density of the frictional materials increases in a direction from the outer circumferential portion of the wet frictional plate toward its inner circumferential portion.

Abstract: A brake pad (10) having a mechanical joint formed between a friction member (22) and a metal backing plate (12) by a plurality of rivets (30,30' . . . 30.sup.n). Each rivet (30) has a head (36) and an end (37) with the head (36) engaging the friction member (22) and the end (37) engaging the backing plate (12). During assembly of each rivet (30) with the backing plate (22), a force is applied to the head (36) causing the end (37) to flow in a groove (38) in a die (16) and form a flattened surface. The amount of the force applied to head (36) is limited to create a clamping force between the head and backing plate which holds the friction member (22) against the backing plate (12) and yet noise developed through vibration during a brake application is attenuated as the friction member (22) and metal backing plate (12) vibrate at different frequencies.

Abstract: A set of brake pads for a floating-caliper disc brake including a first brake pad with a first retaining spring for clamping engagement on a brake piston and a second brake pad with a second retaining spring for clamping engagement on an axially external leg of the floating caliper. The first retaining spring has two resilient tongues which are locked in a bore of the hollow brake piston, and the second retaining spring has identical resilient tongues which are locked in a recess of the external housing leg. According to the present invention, the distances between the respectively opposed resilient tongues are different in conformity with the different widths of the bore and the recess, respectively. The provision according to the present invention renders it impossible to attach the first brake pad to the external housing leg and the second brake pad to the brake piston.

Abstract: A brake shoe assembly is formed by precision stamping a net shaped web blank having a series of tabs projecting outward therefrom and stamping a corresponding table member provided with tab receiving apertures and bending the table member into a semi-cylindrical segment. The web blank and the table are assembled causing the web tabs and table apertures to be interlocked securely locating the parts temporarily prior to the cooperating tabs and apertures being permanently joined together using a hot staking process without any portion thereof extending substantially beyond the outer semi-cylindrical surface of the table.

Abstract: An improved railway brake shoe member characterized by logitudinally tapered sidewalls of the brake shoe that provide adaptive response to braking under conditions of mis-alignment between the brake shoe member and the tread of a railway car wheel by facilitating wear-in of the mis-aligned brake shoe, thereby assuring brake shoe/wheel tread engagement and accordingly alleviating degradation of braking efficiency and undesirable thermal inputs to the wheel flange that otherwise results from such brake shoe mis-alignment.

Abstract: A novel brake shoe assembly is provided with a brake shoe table having a generally arcuate friction material support surface, a friction material preform supported by the brake shoe table friction material support surface and having a peripheral side groove, fixed retainer clips mounted on the brake shoe table and engaging the friction material form groove, and relatively rotatable retainer clips removably and threadably mounted on the brake shoe table, engaging the friction material form groove, and imparting additional clamping forces to said friction material preform when being tightened and rotated counterclockwise relative to the brake shoe table.

Abstract: A friction pad for a disc brake comprising a stationary pad which is fixed on a backing plate, and a rotatable pad which is rotatably attached to the backing plate, wherein the rotatable pad is rotatable along an axis which is perpendicular to the backing plate.

Abstract: An automotive disc brake (10) with an improved caliper assembly (14) to prevent drag of the inner brake pad (78) on the inner braking surface (40) of the rotor (16) in a hydraulically actuated automotive disc brake assembly.

Abstract: A clutch plate comprises a plate body having a hub and a driven plate which is connected to the plate body through compression springs to rotate with it and extends radially beyond the plate body. A ring-shaped friction lining is secured on the driven plate by rivets, the head of which are sunk into the friction lining. The friction lining is made up of two layers of friction material, and underneath layer riveted to the driven plate and an upper layer stuck onto the lower layer of friction material to cover its whole surface.

Abstract: A brake lining comprises a lining body defining a plurality of holes therein and a plurality of blocks made of certain material, each block disposed in a respective hole of the lining body, whereby, a coated layer is formed on the brake disk when the brake lining is urged against a brake disk to protect the surface of the brake disk from abrasion. The holes of the lining body can be circular and the blocks can be made to match the holes. In a preferred embodiment, the disposition of the holes is to extend along a friction path between the brake lining and the brake disk. Also the disposition of the holes is to stagger the holes at the edges thereof along the friction path between the brake lining and the brake disk.

Abstract: A friction brake subassembly is provided with a metallic backing plate element and with a friction material brake lining element integrally adhered to the backing plate element, the brake lining element friction material composition comprising friction material particles and an epoxy resin binder preferably in the approximate range of from 10% to 40% of the friction material composition total weight. Methods are disclosed for integrally bonding the brake lining element to the backing plate element.

Abstract: A caliper disk brake for steel mill cranes includes a pair of armatures having an electromagnetic coil and a spring interposed between them to operate in a clamshell fashion. The spring urges the armatures apart, while actuation of the coil urges the armatures together. Each of a pair of caliper arms is pivotally connected to a respective one of the armatures at one end thereof, and has a pressure plate pivotally maintained at an opposite end. The pressure plates are maintained in juxtaposition to wear pads which are axially movable in apertures maintained in a pair of stationary plates. A disk, adapted for interconnection with the shaft of a steel mill crane hoist motor is positioned between the plates and wear pads.

Abstract: An improved railway brake shoe member characterized by longitudinally tapered sidewalls of the brake shoe that provide adaptive response to braking under conditions of mis-alignment between the brake shoe member and the tread of a railway car wheel by facilitating wear-in of the mis-aligned brake shoe, thereby assuring brake shoe/wheel tread engagement and accordingly alleviating degradation of braking efficiency and undesirable thermal inputs to the wheel flange that otherwise results from such brake shoe mis-alignment.

Abstract: A brake shoe key of the spring-type for affixing a brake shoe to a brake head, the key being formed from a flat strip of spring metal including a shank portion having a generally curvilinear profile and a head portion that is integral with the shank portion and is characterized by an open-loop configuration to provide a space in which a pry bar may be inserted, the open-loop configuration being formed by a stop leg that is outturned from one face of the shank and a pry leg that is spaced-apart from the stop leg on the opposite side thereof from the shank.

Abstract: A brake pad assembly comprises a backplate, a friction lining secured to one side of the backplate and a planar dampening sheet secured to the other side of the backplate. The dampening sheet has at least one embossed projection extending from the one side thereof and the backplate has at least one recess in the side thereof secured to the dampening sheet and which is of generally the same configuration as the projection in the dampening sheet to receive the projection. The projection is partially outlined by at least one cut in the dampening sheet forming a cut edge on the projection which extends outside the plane of the dampening sheet to abut against the wall of the recess and compensate for excessive shearing forces caused between the dampening sheet and the backplate during a braking operation utilizing the brake pad assembly.

Abstract: A brake friction pad assembly is provided with a metallic backing plate element, a friction pad element having a mating surface, an air-dried and completely thermally cured elastomeric adhesive material film joined in cure-bonded relation to the mating surface of the friction pad element, and mechanical fasteners joining the friction pad element and adhered elastomeric adhesive material film to the backing plate element with the elastomeric adhesive material film in an intermediate position.

Abstract: A brake friction pad assembly is provided with a metallic backing plate element, a friction pad element having a mating surface, an air-dried and thermally cured elastomeric adhesive material film joined in cure-bonded relation to the mating surface of the friction pad element, and mechanical fasteners joining the friction pad element and adhered elastomeric adhesive material film to the backing plate element with the elastomeric adhesive material film in an intermediate position.

Abstract: A friction pad for a disk brake is designed so that a wear sensor can be firmly secured to the friction pad. A circular cylindrical projection is formed on a backing plate of the friction pad by extrusion so that a wear sensor adapted to sound an alarm by coming in contact with a disk is fitted onto the projection and secured to the backing plate by caulking the projection. The projection is so deformed that the diameter d.sub.1 and height h.sub.1 of a resulting radially enlarged portion satisfy the relationship of (d.sub.1 -3.4).times.h.sub.1 .gtoreq.2.5, thereby preventing rotation of the wear sensor and rising of the enlarged portion.

Abstract: In a conventional frictional force transmitting device used in a vacuum, a problem has arisen when the device performs a sliding action over a certain distance, that is, its frictional force suddenly drops, which makes it impossible for the device to fulfill a desired function of braking. The above-mentioned problem in the frictional force transmitting device used in a vacuum for performing the function of braking, transmitting a frictional force, and effecting acceleration or deceleration, can be solved by improving the device, that is, by means of making its two opposing frictional elements so as to be selectively pressed against each other, in which one of the frictional elements is made of metal or of non-metallic materials and the other made of organic frictional materials, wherein the one of the frictional element made of metal or nonmetallic materials has surface roughness coarser than 3 microns in maximum height(Rmax) and is coarser than the other made of organic frictional materials.

Abstract: A brake shoe for spot-type disc brakes. The novel brake shoe incorporates a retaining spring which is fixed to the brake shoe's backplate and which is intended to engage a hollow portion of a brake piston. Preferably the backplate is coated with a silencing varnish paint for noise abatement. A fixing section of the retaining spring is formed with a step which is in abutment against the backplate in a range devoid of silencing varnish paint. The retaining spring is secured to safeguard against twisting. The operability of the retaining spring is preserved, independently of the accidental thickness of the layer of silencing varnish paint.

Abstract: A floating-frame spot-type disc brake is described comprising a floating frame (1) guided in a manner axially displaceable on a brake carrier (12), and being furnished with two brake cylinders (2, 3) and two brake pistons (4, 5) directly acting on two axially inwardly disposed brake shoes (6, 7). The brake carrier (12) is located entirely on one side of the brake disc and no portion extends across the outer edge of the brake disc (15), so that the maximum diameter of the brake disc is limited only by the relatively thin sections of the floating frame (1) extending across the outer edge of the brake disc. Additional brake shoes (8, 9, 22), on the axially outer side, are fixed to the floating frame (1), in turn transmitting the circumferential force acting on the outer shoes occurring during braking, through a bolt guide (10), into the brake carrier (12).

Abstract: A brake friction pad assembly is provided with a metallic backing plate element, a friction pad element having a mating surface, an air-dried and thermally cured elastomeric adhesive material film joined in cure-bonded relation to the mating surface of the friction pad element, and mechanical fasteners joining the friction pad element and adhered elastomeric adhesive material film to the backing plate element with the elastomeric adhesive material film in an intermediate position.

Abstract: A disc brake caliper has two limbs which, in use, straddle an outer periphery of a brake disc to support friction pads on each side of the disc. Each caliper limb supports at least two friction pads arranged side by side in a circumferentially sequential array with the trailing edges of each pad abutting the leading edge of any circumferentially adjacent pad in the array to transmit torque loads from one pad to the adjacent pad.

Abstract: Arcuate brake lining apparatus for use with an arcuate brake drum includes a brake shoe table having an inner edge and an outer edge. There is an outer lip on the outer edge of the brake shoe table. A gripper is detachably attached to the brake shoe table. An inner lip is provided on the gripper. There is at least one brake lining segment having a braking surface configured for engaging an arcuate brake drum. The at least one brake lining segment has an inner edge and an outer edge, the inner edge being configured for engaging the inner lip of the gripper, and the outer edge being configured for engaging the outer lip of the brake shoe table. In the method of using the arcuate brake lining apparatus, when the at least one brake lining segment is to be replaced, the gripper is removed from the brake shoe table, and the at least one brake lining segment is moved in a direction from the outer edge toward the inner edge for disengaging the outer edge from the outer lip.

Abstract: A brake band suitable for use in an automatic transmission is described. The brake band has a brake lining with a surface subjected beforehand to working on an apply side thereof and having a percent contact area in a range of 10-40%, preferably 25-40% on the apply side thereof at the time of commencement of use.

Abstract: The invention is related to a brake shoe with a chamfered edge lining, the chamfered edge achieving desired surface configuration of the lining after only a few braking actions while increasing the service life of the lining. The chamfer has a profile shape which features a hyperbolic contour, steeply angled at the top adjacent the outer face and very shallowly angled at the bottom adjacent the backing plate so that the increment of wear of each braking operation decreases in a strongly degressive way.

Abstract: A brake disk includes a ring body in a ring groove on a side of a friction ring which is not acted upon for connecting the mutually opposite ends of friction ring segments with one another. The ring bodies prevent an expanding of the juncture caused by centrifugal force as well as a radial relative displacement of the ends of the ring segments, while a limited relative rotation of the faces of the ring segments is possible when an air gap exists at the juncture.

Abstract: A force application system for a disc brake assembly in which twin pistons engage a configured load plate featuring stiffening ribs at specific locations to maximize the stiffness thereof seeking to provide uniformity of pressure transmitted therethrough to a friction pad. Additional uniformity of pressure is achieved by forming recesses in the backing plate of the friction pad proximate regions of pressure peaks. A singular recess at the point of pressure peak or recesses defined in a pattern identified by infinite element analysis may be utilized to optimize uniformity of pressure distribution.

Abstract: A brake shoe assembly with a removable brake shoe pad. A brake shoe assembly includes a brake shoe plate. A brake shoe pad and a pair of connector plates are provided. The brake shoe pad is adjustably received on the bottom of the brake shoe plate. The connector plates are slidably positioned onto the top of the brake shoe plate, and are connected to the brake shoe pad through the brake shoe plate by rivets through corresponding openings formed therein. The connector plates are additionally connected to the brake shoe plate by vertical members, with screws inserted through corresponding openings formed therein.

Abstract: The lining (1) includes by studs (2) mounted on a support (3), each being rigid with the support by reason of a mounting element and is characterized in thata) the mounting element (5) consists of a base (9) with a flange (13) with no axial symmetry,b) the support (3) consists of two metal plates, a rigid support plate (7) and a mounting plate (6) having orifices (10) in order to be able to grip the said flange (13) by reason of mechanical connections (8) between these two plates (6, 7),c) at least one of the plates (6, 7) displaying a deformation in such a way as to grip the flange and so achieve rotational locking of the stud (2).