Abstract: A caliper body of a caliper for a disc brake may have two opposite elongated portions, each adapted to face one of the two opposite braking surfaces of the disc of disc brake. The two opposite elongated portions are connected to each other by at least one caliper bridge. At least one of the two opposite elongated portions may have seat walls which delimit at least one seat, adapted to house at least one portion of a thrusting element. The thrusting element may be adapted to determine a thrusting action against at least one brake pad associable with the caliper body to press the at least one brake pad against one of the two opposite braking surfaces. The seat walls may have at least one seat bottom wall, in which the axial thickness of the seat bottom wall is less than 5 mm.

Abstract: A brake caliper comprising a body manufactured from ALM and having a skinned lattice structure. A method of designing and forming said brake caliper.

Abstract: A hydraulic caliper disc brake includes an opposing pair of pistons adapted to act on an opposing pair of washers adapted to act on an opposing pair of stator assemblies, each of the pistons comprising a spherical piston face, each of the washers comprising a spherical washer face abutting a respective one of the spherical piston faces, and a straight washer face opposite the spherical washer face and abutting a respective one of the stator assemblies.

Abstract: A method for operating a brake system for a motor vehicle, wherein the brake system has a braking pressure source and at least one wheel brake which can be pressurized with a braking pressure which is provided by means of the braking pressure source and acting on a brake piston. For performing a diagnosis of the brake system, the wheel brake is pressurized with a braking pressure which corresponds to a diagnosis braking pressure and which applies a certain force on the brake piston, and a counterforce directed oppositely to said force is applied to the brake piston.

Abstract: A multilayer piston insulator may comprise a plurality of axially aligned disks of a disk stack comprising, a first disk, a second disk, and a third disk, wherein the second disk is coupled axially between the first disk and the third disk and comprises a different material than the third disk, and wherein the disk stack is configured to couple to a hydraulic piston.

Abstract: A disc brake for utility vehicles includes a brake disc, a first brake lining on a first side of the brake disc and a second brake lining on a second side of the brake disc opposite the first side. A spreading device is also provided which generates a force that moves the first and the second brake lining away from one another.

Abstract: A brake caliper apparatus includes a caliper portion configured to be supported by a vehicle, a piston seal disposed in an annular cavity of the caliper portion, a piston disposed in a cylindrical recess in said caliper portion and having a cylindrical outer surface in sealing contact with the piston seal, the piston being movable within said cylindrical recess along an axial direction, a heat shield disposed at an axial end of the piston, and a sealing boot having a first end attached to the heat shield at an attachment portion of the heat shield and a second end engaged to the caliper portion at an engagement portion of the caliper portion, the piston seal and the engagement portion being on a common plane perpendicular to the axial direction.

Abstract: A method for producing a molded article of the present invention includes a step of preparing a pellet raw material containing a resin and raw fibers, a step of cutting the pellet raw material to obtain a plurality of pellets each containing the resin and fibers produced by cutting the raw fibers, a step of opening the fibers contained in each pellet; and a step of molding the pellets after being opened to obtain the molded article. According to the present invention, it is possible to easily produce a molded article (e.g., a back plate of a brake pad) having excellent mechanical strength. Further, According to the present invention, it is also possible to provide a molded article and a back plate each having excellent mechanical strength, and a brake pad having high reliability.

Abstract: A disc brake having a caliper, a housing bore, a guide insert, and a piston. The housing bore extends inboard from an outboard face of a housing portion of the caliper. The guide insert may have an inner guide bore and may be mounted within the housing bore. The piston may be slideable within the inner guide bore relative to the guide insert so as to urge a brake pad towards a rotor.

Abstract: In an opposed-piston disc brake caliper, a pair of reinforcement bridge portions, which are inclined relative to an axial direction, are provided on outside of a rotor in a radial direction of the rotor so as to define corner opening portions in an opening portion which is defined by an inner body portion, an outer body portion, and an entry-side connection portion and an exit-side connection portion connecting the inner body portion and the outer body portion. A torque receiving portion of one of the entry-side torque receiving portion and the exit-side torque receiving portion is exposed toward an outside in the radial direction via the corner opening portions.

Abstract: Disclosed is a disk brake caliper assembly where a second seal is positioned in a second annular groove to eliminate the seizure of the piston cylinder that commonly occurs on trailer brakes that are immersed in water. The second seal is slightly deformable and designed to frictionally engage the piston. The second seal functions as both a wiper to keep dirt and contaminants out of the cylinder assembly and to prevent water ingress. The use of the secondary seal can compliment or eliminate the need for a dust boot.

Abstract: A disk brake includes a caliper body having a cylinder portion (25) with a cylindrical shape. The cylinder portion (25) has a bore (30) with a bottom (34) formed by integrally joining together an opening peripheral edge (98) at the bottom side of the cylinder portion (25) and a bottom cover member (92) to be fitted to the opening peripheral edge (98) through friction stir welding. The bottom cover member (92) has a disk shape and is friction-stir-welded along the outer periphery thereof. The terminating point of the friction stir welding is within the boundaries of the bottom cover member (92).

Abstract: Disc brake piston cap (3) interposed between the caliper (1) and the piston (2) to protect the piston (2). The cap (3) has a bulge (351) on the inner fold (35) which is engaged in the groove (22) of the piston (2), and has an overmolded insert (31) fixed to the annular groove (11) of the caliper. The folded cap (3), with the overmolded insert (31), intermediate folds (33, 34) and an outer fold (32), comprises longitudinal ribs (352) on the face of the inner fold (35) to stiffen this fold and allow air to pass from the inside to the outside around the bulge (351) of the inner fold (35), housed in the groove (22).

Abstract: A disk brake is provided which is free from problems attributed to the obverse-reverse orientation of a cover member as installed. A cylinder portion (21) slidably accommodating a piston is formed from a plate-shaped cover member (43) constituting the bottom thereof and a caliper body main part (46) having an opening (45) that is closed with the cover member (43). The cover member (43) is joined to the caliper body main part (46) to close the opening (45). A projection (60) is provided on one side of the cover member (43) that faces inside the cylinder portion (21), and a blind hole (61) is provided on the other side of the cover member (43). When the cover member (43) has been installed in the normal orientation, the blind hole (61) remains after the outer surface of the bottom of the caliper body has been subjected to face cutting after the installation of the cover member (43).

Abstract: A brake caliper of a disk brake for a utility vehicle is provided. The brake caliper includes tension braces which are arranged substantially parallel and at a distance from each other, straddling a brake disk and connecting receptacles for functional parts arranged on both sides of the brake disk. One receptacle forms a caliper back and the other receptacle forms a housing having a lever dome formed thereon. The brake caliper includes at least one replaceable service-related wear protection element fastened to areas of potential wear during in-service use of the brake caliper, such as at the lower side of the leading tension brace and at least partially around the lever dome.

Abstract: Caliper bodies are provided for disc brakes suitable for being arranged astride of a disc for a disc brake, which include an attachment side portion, a non-attachment side portion and at least one bridge, said bridge being suitable for connecting such side portions and for being arranged astride of the disc, wherein the caliper body includes at least one portion made from thermoplastic material, reinforced with carbon fibres, with resistance to a temperature of at least 200° C. Disc brakes which incorporate such caliper bodies are also provided.

Abstract: Brake caliper bodies and brake calipers for disc brakes are provided.

Abstract: A disk brake having a cylinder apparatus wherein although an opening of a cylinder body is closed by a covering member, processing and parts' costs are reduced, fluid leakage is prevented, and the apparatus can be reduced in size. A piston (17) is caused to slidingly move in a bore (26) of a cylinder (21) of the cylinder apparatus. The cylinder (21) includes a covering member (43) provided in a bottom portion (42) of the cylinder (21), and a cylinder body (46) having an opening that is closed by the covering member (43). The covering member (43) is friction stir welded to the cylinder body (46).

Abstract: An apparatus for a disk brake comprises a caliper body having an inner peripheral surface and a seal groove disposed at the inner peripheral surface. The inner peripheral surface is dimensioned to slidably receive a piston therein, wherein the piston moves in a direction of a braking direction axis, and the seal groove is dimensioned to receive a seal therein so that the seal can seal a space between the inner peripheral surface and the piston. The seal groove comprises a movement restricting part that restricts movement of the seal in the direction of the braking direction axis, and a movement permitting part formed as a step facing radially inwardly.

Abstract: A disc brake to receive a disc and a brake pad. The disc brake includes an inner pad to produce friction with one side of a disc, an outer pad to produce friction with an opposite side of the disc, and a caliper housing including a cylinder part provided therein with a cylinder to receive a piston to press the inner pad and a finger part provided in front of the cylinder part to press the outer pad. The caliper housing includes a spacer to variably change an interval between the cylinder part and the finger part.

Abstract: A brake caliper has a brake pad having a backplate with a friction material attached to one side and a loading face on an opposite side. The caliper further includes a piston that applies a force to the loading face. The brake pad is releasably attached to the piston, thereby eliminating a separate brake pad retaining structure in the caliper.

Abstract: A brake piston may include a steel core and a phenolic outer layer that may be overmolded to the steel core.

Abstract: A hydraulic disc brake caliper that includes a housing that has first and second side portions and first and second end portions that cooperate to define a braking opening. The housing also includes first and second piston receiving openings and first and second fluid openings. The caliper also includes a bolt received in the second fluid opening that includes a shaft having a portion of a fluid path defined in the outer surface thereof that includes at least one channel and at least one reduced diameter portion. The fluid path extends from the first fluid opening to the second fluid opening. The at least one channel and the at least one reduced diameter portion are part of the fluid path and are in fluid communication between the first and second piston receiving openings.

Abstract: There is provided a disk brake comprising: a piston that presses a brake pad to a disk rotor; and a caliper at which the piston is slidably provided through a piston seal, the caliper making the piston moved forward by hydraulic pressure, wherein the piston has that an anodized film layer formed by an anodized treatment is formed on a surface of a piston base body made of aluminum alloy, and a chromium plating layer is directly laminated on a surface of the anodized film layer.

Abstract: Disc brake comprising an hydraulic actuator for clamping shoes guided by a caliper (14) and an annular seal (10) lodged with axial clearance (J) in a groove (28) of the actuator for ensuring fluid-tightness between the piston (16) and the cylinder of the actuator, characterized in that the groove (28) comprises a rib (40) for the axial locking of the seal (10).

Abstract: The invention relates to a disk brake, in particular for utility vehicles, having a carrier, a caliper, a holder device for displaceably holding the caliper on the carrier, a seal which is fixed in a recess on the holder device, and a pretensioning device for pretensioning the seal in the recess, wherein the pretensioning device is activated by the mounting of the holder device.

Abstract: The bottom surface of a seal groove provided in a cylinder bore has a first slant portion and a second slant portion. A transition point between the first slant portion and the second slant portion is located closer to the opening of the cylinder bore than the center in the cylinder bore axial direction of the seal groove. A gap is formed between the outer peripheral surface of a piston seal member and the bottom surface of the seal groove, and the surface pressure applied to the bottom surface of the seal groove from the piston seal member is higher at the cylinder-bottom-side end of the piston seal member than at the cylinder-opening-side end thereof. Thus, it is possible to suppress the movement of the piston toward the cylinder bore bottom due to thermal expansion of the piston seal member.

Abstract: A brake caliper comprising a piston seat (10) wherein a piston (2) slides with its side surface (11) in contact with a radial surface (13) of an elastic member (12). The member further comprising two axial surfaces (15,16) adapted to be affected by a pressurized fluid and being arranged at the piston coming out side facing the pads respectively. The latter surface facing with a portion (17) thereof, a first chamber (18) arranged in the proximity of the piston side surfaces, with another portion (24) thereof, an abutment surface (19) adapted to support said elastic member when it is urged by the pressurized fluid, said abutment surface being radially retracted so as to be farther from the piston side surface than said first chamber and with a further portion (25) thereof, at least one second chamber (20) arranged radially farther from said piston side surface than said abutment surface.

Abstract: A torque plate for a vehicle brake is comprised of a sheet metal body. The sheet metal body includes a center opening that defines a lateral axis and a plurality of mounting holes. The center opening receives an axle housing and the mounting holes are used to secure the vehicle brake to the torque plate. Each mounting hole is defined by a center axis that is non-parallel to the lateral axis.

Abstract: A brake pad actuating device comprising: a piston including: a first pocket; an opposing second pocket; and an internal wall located in the piston separating the first pocket and the second pocket, wherein the volume of the first pocket to the volume of the second pocket form a ratio of less than about 20:1; and wherein the piston is adapted to be used as a brake piston.

Abstract: An opposed-piston disc brake includes cylinder connection oil passages respectively connected to a cylinder of an inner caliper portion and a cylinder of an outer caliper portion, passage communication bores respectively formed at bridge portions to extend in an axial direction of a disc in a substantially straight manner. The cylinder connection oil passages are formed using a core at the time when a caliper body is cast. The cylinder connection oil passages extend in a radially outer direction of the disc. Ends of the cylinder connection oil passages in a longitudinal direction thereof are directly connected to the passage communication bores. In a state where the caliper body is mounted on a vehicle, a top portion of an inner wall surface of one of the passage communication bores is positioned higher than the ends of the cylinder connection oil passages.

Abstract: A caliper for a disc-brake includes two side walls at a distance from each other which delimit a space to accommodate a portion of a brake disc. The side walls are connected to each other by a connecting structure which straddles the disc space. Each of the side walls delimits at least one seating capable of accommodating a pad. The caliper comprises a thrust to clamp the pads against the brake disc. The thrust is secured to the side walls in such a way that the side walls absorb the entire clamping force and the seatings are capable of securing the pads so that the side walls also absorb the entire braking moment. The connecting structure comprises arc-shaped shells, connected so as to be integral with both the side walls. The slenderness of the shells expressed as the ratio of thickness to circumferential extension relative to an axis of rotation of the brake disc is less than 17/100.

Abstract: An exemplary embodiment of a brake caliper has a housing with a first chamber and a second chamber. The brake caliper also has a first piston that moves in response to fluid pressure in the first chamber and has a second piston that moves in response to fluid pressure in the second chamber. A brake pad has a leading end portion that is acted upon by the first piston and has a trailing end portion that is acted upon by the second piston. A fluid passage leads to the first chamber. The trailing end portion contacts an associated rotor before the leading end portion contacts the rotor.

Abstract: A method of manufacturing a cylinder apparatus wherein although an opening of a cylinder body is closed by a covering member, processing and parts costs are reduced, fluid leakage is prevented, and the apparatus can be reduced in size. The cylinder apparatus includes a piston (17) which is caused to slidingly move in a bore (26) of a cylinder (21). The cylinder 21 includes a covering member (43) provided in a bottom portion (42) of the cylinder (21), and a cylinder body (46) having an opening that is closed by the covering member (43). The covering member (43) is friction stir welded to the cylinder body (46).

Abstract: A method for manufacturing callipers for disc brakes. The calliper includes a body in which cylindrical chambers are formed inside which pistons run bearing pads intended for acting on the disc of the brake during the braking step. The method includes the steps of providing a body provided with a slit intended for receiving the disc of the brake and with a pair of cavities aligned transversely to the slit on opposite sides of the slit. The cavities are intended for forming a pair of cylindrical chambers. One of the cavities has a first opening on the slit and a second opening to the outside of the body at which there is a tapered portion with a decreasing section towards the outside of the body. Closing the second opening is a cap applied in the cavity by the slit. The cap has a tapered portion that is forced at the tapered portion of the second opening to form a cylindrical chamber of the calliper.

Abstract: A brake pad actuating device comprising: a piston including: a first pocket; an opposing second pocket; and an internal wall located in the piston separating the first pocket and the second pocket, wherein the volume of the first pocket to the volume of the second pocket form a ratio of less than about 20:1; and wherein the piston is adapted to be used as a brake piston.

Abstract: A hydraulically actuated disc brake has at least two hydraulic brake pistons acting upon a brake lining, arranged in a brake housing. The hydraulic disc brake includes a hydraulic synchronization device for reducing oblique wear of the brake lining. The hydraulic synchronization device is interposed between an input pressure line for brake actuation and the brake piston.

Abstract: A hydraulic caliper brake assembly for a bicycle comprises a caliper body; a first chamber installed in the caliper body; a first piston installed in the first chamber; a second piston installed in the first chamber; an inner chamber formed between the first piston and the second piston for receiving brake oil; an outer chamber installed between the second piston and the caliper body for receiving brake oil; and an outer valve installed in the second piston for switching flowing of the brake oil between the inner chamber and outer chamber. When a small force is applied, the brake oil will flow into the inner chamber; by closing the outer valve, the first piston is pushed to have the effect of speed reduction; when the braking force is increased, by opening the outer valve, the second piston is pushed to have the effect of emergent braking.

Abstract: A flexible boot for protecting a cylinder-piston unit of a disk brake of the type that includes a piston slidable in a cylinder in order to act on a brake pad. The flexible boot has a surface with a portion that can face a wall of the pad when in a rolled-up position. The flexible boot is characterized in that it comprises at least one spacer element that is associated with the surface and is intended to come into contact with the wall of the pad in order to keep the portion of the surface spaced from the wall of the pad.

Abstract: A brake piston may include a steel core and a phenolic outer layer that may be overmolded to the steel core.

Abstract: A brake caliper has a brake pad having a backplate with a friction material attached to one side and a loading face on an opposite side. The caliper further includes a piston that applies a force to the loading face. The brake pad is releasably attached to the piston, thereby eliminating a separate brake pad retaining structure in the caliper.

Abstract: A brake caliper that has the same performance as a brake caliper with multiple pistons despite its compact structure, in which drag resistance between a brake pad and a brake disk is minimized, that is less likely to produce non-uniform wear of brake pad and brake squealing, and whose weight and cost are suppressed. Pistons (23) are formed in a circular hollow cylindrical shape, and apply pressing force to a disk rotor (1) by circular pressing parts. Piston-containing holes (21) recessed in a circular shape and containing the pistons (23) so that they can slide in the axial direction of the pistons are formed in caliper bodies (100, 105).

Abstract: The present invention is predicated upon a brake caliper assembly, comprising a finger portion including a first end that is free and a second end, an inner surface and an outer surface, a cylinder portion including a first end that is free and a second end, an inner surface and an outer surface, and a bridge portion, including an inner surface and an outer surface, for connecting with the second end of the finger portion at a finger corner region having an inner surface and an outer surface, and for connecting with the second end of the cylinder portion at a cylinder corner region having an inner surface and an outer surface, and for defining a continuous surface that includes the inner surfaces of each of the finger portion, the cylinder portion, the finger corner region, the cylinder corner region and the bridge portion, wherein the inner surface of at least one of the finger or cylinder corner regions includes an inclined surface that is generally flat for a span of at least about 2 mm.

Abstract: To provide a motorcycle disk brake that can ensure brake force and also enable miniaturization. A motorcycle disk brake unit (10) has a part (105) of a piston (56) which projects outwards from an outer edge (35) of a brake disk (33), and by forming parts (67), within an outer back plate (65) and an inner back plate (75), corresponding to the piston (56) following the piston (56) so that an outer pad (90) and an inner pad (95) do not project out further than the outer edge (35) of the brake disk (33), another part (68) following the outer edge (35) of the brake disk (33), and a bridge section (53) following respective back plates (65), (75), a part (54) of the bridge section (53) can project further inwards than the piston (56) resulting in miniaturization of disk brake unit (10).

Abstract: An air disk brake caliper housing is disclosed. The caliper housing includes a open rear end portion that opens into a passageway for receiving an actuator/adjuster mechanism. To minimize the outer contour of the caliper housing to alleviate packaging concerns with respect to a vehicle axle, the passageway is offset above an operating position for the actuator/adjuster mechanism. As the actuator/adjuster mechanism is inserted into the offset passageway, it passes a retaining step formed in the interior of the passageway to provide sufficient running clearance for gears of the actuator/adjuster mechanism. Once passing the retaining step, the actuator/adjuster mechanism may be dropped down to the appropriate operating height and installed in the operating position within the caliper.

Abstract: A piston seal of a disc brake can stabilize the amount of rollback of a piston by reducing thermal expansion and a decrease in modulus of elasticity of the piston seal caused by an increase in temperature, thereby preventing a driver from feeling that the brake operation is unnatural. The piston seal is formed of a rubber composition in which at least 100 parts by weight or more of carbon black is added to 100 parts by weight of ethylene propylene rubber.

Abstract: A caliper assembly has a one-piece housing with a first and second wall opposing one another. A pair of bridge sides connect the first and second walls. A bore is formed in the first wall to receive a piston assembly. An opening is formed between the first wall, second wall and pair of bridge sides. The opening enables access into the caliper body. At least one aperture is formed in the second wall. The aperture is continuous with the opening to enable access into the body.

Abstract: The invention relates to a composite brake caliper and method for producing the same. The method for producing the composite brake caliper comprises the steps of: (a) providing a molding apparatus having at least a pair of mold sections, at least one of the pair of mold sections including at least one projection extending from a surface thereof; (b) providing at least one reinforced preform formed from at least a first material, the preform having at least one opening formed at least partially therein; (d) positioning the preform in the molding apparatus with the projection of the mold section extending into the opening of the preform so as to orient the preform in a predetermined position within the molding apparatus; and (e) casting a caliper body formed from a second material in situ therewith to produce the composite brake caliper.

Abstract: Modified friction pad and friction-pad receptale assembly for a brake/clutch module permitting greater ease inserting pad into and withdrawing it from the brake/clutch module. The pad is held into the receptacle by clips at the distal end of the receptacle rather than the proximal end. That configuration, in conjunction with finger-grip depressions near the proximal end of the pad, allow the pad to be removed with one hand. Additionally, the friction pad assembly protects the torque-resistor pad guides from wear by interposing the spring steel of the retaining clips between the pad assembly and these guides.

Abstract: A bicycle disc brake is provided in which a support member movably couples the brake caliper to the frame of the bicycle. The bicycle disc brake caliper has a caliper housing with a single piston unit. The piston unit is movably coupled to the housing between a release position, in which the piston unit is spaced from a disc brake mounted to a wheel of a bicycle, and a braking position, in which the piston unit engages the disc brake of the bicycle wheel. The piston unit has a first friction member movably coupled between a release position and a braking position and a second friction member arranged substantially parallel to the first friction member to form a disc brake receiving space between the first and second friction members. In one embodiment, the caliper housing is movably coupled to the support member by a pivot pin. In another embodiment, the caliper housing is movably coupled to the support member by a linkage assembly.