Piston For Each Of Plural Elements Patents (Class 188/72.5)
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Patent number: 12117054Abstract: The invention relates to a brake pad for a vehicle, adapted to be connected to a carrier around a rotatable brake disc which rotates around a geometrical centre axis, the brake pad comprising an upper side, a lower side, a friction surface extending downwardly from the upper side to the lower side and being adapted to be pressed against a brake disc, an opposite surface extending downwardly from the upper side to the lower side and being adapted to be faced away from the brake disc, wherein the lower side comprises at least one sliding portion configured to slide against a mating sliding portion of a carrier, wherein the at least one sliding portion extends downwards towards the opposite surface.Type: GrantFiled: April 12, 2019Date of Patent: October 15, 2024Assignee: Volvo Truck CorporationInventors: Ramachandran Sandrasekaran, Kent Augustsson, Marcel Palmgren, Martin Petersson
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Patent number: 11396918Abstract: A disc brake includes: an inner pad and an outer pad respectively located on opposite sides of a rotor; a pressing device that presses the inner pad and the outer pad against the rotor; and a housing holding the pressing device. The pressing device includes: at least one first pressing member movable toward the rotor and at least one second pressing member movable away from the rotor; and a driving member movable relative to the housing in an axial direction parallel with a rotation axis of the rotor and configured to be moved by movement of the at least one second pressing member to press the outer pad against the rotor. The housing is provided with a torque receiver that receives torque acting on the outer pad in operation of the disc brake.Type: GrantFiled: March 31, 2020Date of Patent: July 26, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomohiro Yokoyama, Kazuya Hamaguchi
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Patent number: 11359683Abstract: A disc brake of a disc-brake apparatus includes an inner pad and an outer pad, a pressing device, and a housing. The pressing device includes: a first pressing member movable toward a rotation disc; a second pressing member movable away from the rotation disc; a frame; and an electric actuator that moves the first pressing member and the second pressing member. The electric actuator includes: a two-axis motor including a stator having coils and having a substantially cylindrical shape, an inner rotor, and an outer rotor; a first motion converter that converts rotation of the inner rotor to linear movement to transmit the linear movement to the first pressing member; and a second motion converter that converts rotation of the outer rotor to linear movement to transmit the linear movement to the second pressing member.Type: GrantFiled: November 25, 2019Date of Patent: June 14, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiro Yokoyama
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Patent number: 11220174Abstract: A wheel hub drive as a direct drive of a wheel of a vehicle having an electric motor preferably designed as a permanent-magnet synchronous motor (PMSM)—external rotor motor—which is substantially arranged in the region within the wheel, wherein a rotating part of a friction brake is frictionally, interlockingly, and/or integrally connected to the motor for braking. The rotating part is operatively connected to the rotor of the motor, directly or indirectly, from outside of the motor.Type: GrantFiled: July 7, 2017Date of Patent: January 11, 2022Assignee: ZIEHL-ABEGG AUTOMOTIVE GMBH & CO. KGInventors: Maximilian Munz, Jordi Mas Gili, Swen Gauditz, Albaro Ponce-Heredia, Roland Hoppenstedt, Edgar Mayer, Sascha Klett, Isabell Kakuschke, Uli Vetter, Alexander Haag, Fabian Frueh, Daniel Buerkert
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Patent number: 11124263Abstract: A brake system for a vehicle such as a bicycle is disclosed. The brake system may comprise an improved master cylinder assembly configured for adjustment (such as adjustment of the stroke length, stroke start, etc.). The brake system may comprise a caliper assembly with an improved arrangement of flow paths configured to facilitate maintenance (such as to remove/bleed air and/or fluid from the body of the caliper assembly, inspection, etc.); the caliper assembly may also be configured for use with a tool (e.g. configured to fit in body to remove/bleed air and/or fluid from flow paths during maintenance). The master cylinder assembly may be configured (e.g. manufactured/produced, assembled, etc.) so that a setting and/or adjustment of the brake stroke and/or lever action/actuation can be provided by any one independent mechanism or one separate adjustment mechanism (e.g. without any other adjustment mechanism) or by a combination of adjustment mechanisms (e.g.Type: GrantFiled: June 23, 2019Date of Patent: September 21, 2021Assignee: Hayes Bicycle Group Inc.Inventor: John L Thomas
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Patent number: 11125288Abstract: A disc brake system that is an opposed piston brake system. The disc brake system includes a brake caliper having an inboard side and an outboard side. The inboard side of the brake caliper is configured to support more brake pistons than the outboard side of the brake caliper.Type: GrantFiled: August 20, 2019Date of Patent: September 21, 2021Assignee: AKEBONO BRAKE INDUSTRY CO., LTDInventors: Aurelian Bahmata, Michio Suzuki, Brian Lewis Boyle, Gang Lou, Waleed Mahmoud Al-Mahshi
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Patent number: 11060574Abstract: A disc brake for a utility vehicle, with a brake caliper which overlaps a brake disc, is preferably designed as a sliding caliper, is fastened to a positionally fixed brake carrier and has a central caliper opening above the brake disc, with an application device for applying the brake, and with two brake pads which are insertable through the caliper opening and each have a pad carrier and a friction pad fastened thereto, of which brake pads the one brake pad, as an application-side brake pad, can be pressed against the brake disc on the one side of the brake disc by the application device, and the other, as a reaction-side brake pad, is arranged on the opposite side of the brake disc, is distinguished in that a holding-down clamp is provided which is designed in such a manner that it radially secures only one of the two brake pads in the pad slot.Type: GrantFiled: November 20, 2018Date of Patent: July 13, 2021Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Tobias Fischl, Wolfgang Pritz, Andreas Petschke, Josef Schropp, Julian Cato Dahlenburg, Markus Bartel
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Patent number: 10913433Abstract: A disc brake includes: an inner pad and an outer pad; a pressing device configured to press the inner pad and the outer pad against a rotor, the pressing device including a first presser member and a second presser member that are movable parallel to a rotational axis of the rotor, and a frame that is a frame-shaped rigid body and is movable in the direction parallel to the rotational axis; and a housing mounted on a non-rotating body, the housing holding the pressing device, the housing including a pad pin that hold the inner pad and the outer pad so as to be movable in the direction parallel to the rotational axis, the pad pin being held by the housing at both ends of the pad pin in the direction parallel to the rotational axis.Type: GrantFiled: October 16, 2018Date of Patent: February 9, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiro Yokoyama
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Patent number: 10883556Abstract: A disc brake of a floating type includes: an inner pad and an outer pad located on opposite sides of a rotor; a pressing device that presses the inner pad and the outer pad against the rotor; and a housing holding the pressing device. The pressing device includes: a first pressing member movable toward the rotor; a second pressing member movable away from the rotor; and a frame held by the housing via engageable portions movably relative to the housing in a direction parallel with a rotation axis of the rotor. The engageable portions are spaced apart from each other in a circumferential direction of the rotor. The frame is moved with movement of the second pressing member to press the outer pad against the rotor. Each of the engageable portions has a labyrinth structure.Type: GrantFiled: June 7, 2019Date of Patent: January 5, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiro Yokoyama
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Patent number: 10870419Abstract: An electronic parking brake (EPB) system having expanded functionality, such that after a Hydraulic Electronic Control Unit (HECU) (i.e., host) commands the parking brake units to release clamping force on the brake discs, a pressure differential is generated in the rear calipers. When the normally closed valves at the HECU are opened, fluid is transferred to a low-pressure accumulator, transferring the brake fluid from the housing of the caliper. A pump is then activated to further draw fluid from the accumulator and the caliper, transferring the fluid back to the master cylinder. The suction created by the activation of the pump moves the caliper piston towards the housing and the brake pad away from the brake disc, and achieving the desired air gap.Type: GrantFiled: July 20, 2018Date of Patent: December 22, 2020Assignee: Continental Automotive Systems, Inc.Inventor: Fábio Niza Maximiuc
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Patent number: 10816053Abstract: A hydraulic brake includes: an inner pad and an outer pad located to sandwich a rotor configured to rotate with a wheel between the inner pad and the outer pad; a wheel cylinder including a cylinder body including a cylinder bore, a hydraulic pressure chamber formed in the cylinder body, and a first piston liquid-tightly and slidably fitted in the cylinder bore and configured to be moved by a hydraulic pressure in the hydraulic pressure chamber so as to press the inner pad against the rotor; and a drive member configured to be moved, by the hydraulic pressure in the hydraulic pressure chamber, in a direction opposite to a direction in which the first piston moves, so as to press the outer pad against the rotor. The cylinder body includes a fragile portion at a portion corresponding to the hydraulic pressure chamber.Type: GrantFiled: October 24, 2018Date of Patent: October 27, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventor: Tomohiro Yokoyama
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Patent number: 10760631Abstract: A caliper brake (10) includes a housing (12) formed of a first housing portion (16) and a second housing portion (18). Each of the first housing portion and second housing portion include a channel (104) extending therethrough. The channels (104) include pins (102) for receiving one or more shims (94) thereon. Brake (10) includes a first stator assembly (60) and a second stator assembly (64) that are separated by a first distance when no shims (94) are on the pins (102). The first stator assembly (60) and the second stator assembly (64) are separated by a second distance less than the first distance when one or more shims (94) are on the pins (102).Type: GrantFiled: February 9, 2018Date of Patent: September 1, 2020Assignee: AUSCO PRODUCTS, INC.Inventors: Brian P. Dennis, Kenneth A. Dodd, Keith McAllister, James Haines
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Patent number: 10364855Abstract: A disc brake caliper includes an outer body, an inner body, and joining parts connecting the inner body and the outer body with each other at both end portions in a circumferential direction of a rotor so as to form an opening part. An inward end edge of both end edges in the circumferential direction of at least one of the joining parts, which defines an end part of the opening part in the circumferential direction, is inclined relative to an axial direction of the rotor towards a central part in the circumferential direction of the outer body from the inner body side to the outer body side, so that a length of the opening part in the circumferential direction is shortened from the inner body side to the outer body side.Type: GrantFiled: November 26, 2013Date of Patent: July 30, 2019Assignee: AKEBONO BRAKE INDUSTRY CO., LTD.Inventors: Yosuke Miyahara, Kenichi Shimamura
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Patent number: 10280995Abstract: A brake caliper housing having: an inner body having one or more inner piston bores open toward a rotor gap; an outer body having: one or more outer piston bores open toward the rotor gap, a bridge structure which extends over the rotor gap, and a plurality of reinforcing structures included in the bridge structure; wherein a longitudinal plane passes through both the inner body and the outer body; wherein the plurality of reinforcing structures extend at an angle away from the longitudinal plane as the plurality of reinforcing structures extend from an exterior surface of the outer body over the rotor gap; and wherein one or more bridge fasteners parallel to the longitudinal plane secure the bridge structure to the inner body so that the bridge structure connects the outer body to the inner body.Type: GrantFiled: January 5, 2017Date of Patent: May 7, 2019Assignee: AKEBONO BRAKE INDUSTRY CO., LTDInventors: Brad Robert Lethorn, Scott Alan Dubay
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Patent number: 9810275Abstract: A sliding caliper disk brake is provided, in which a stationary brake carrier configured to carry a brake caliper includes two pairs of carrier horns, one pair of which supports a reaction-side brake pad and one pair of which supports an application side brake pad. The spacing between the reaction-side pair of carrier horns is larger than the spacing between the application-side pair of carrier horns. The reaction-side brake pad and reaction-side pair of carrier horns may be shorter than the corresponding application-side brake pad and carrier horns. The arrangement of the brake carrier, the brake caliper and the brake pads permits reduction in disk brake weight, cost and brake carrier stresses while providing desired brake thermal, mechanical and service life performance.Type: GrantFiled: March 31, 2016Date of Patent: November 7, 2017Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Abdelaziz Rguichi, Philipp Adamczyk, Matthias Klingner, Alexander Werth, Michael Peschel, Robert Theil
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Patent number: 9810276Abstract: A disc brake assembly arranged to be mounted over a rotor. The disc brake assembly includes first and second brake pads, a caliper having an opening for receiving the first and second brake pads, and a spring member for retaining the pads within the caliper. The spring member has a pad alignment feature arranged to prevent the spring member from being properly assembled on the caliper when one or more of the brake pads is inserted with its friction material facing away from a rotor receiving region of the caliper.Type: GrantFiled: November 16, 2015Date of Patent: November 7, 2017Assignee: Meritor Heavy Vehicle Braking Systems (UK) LimitedInventor: Paul Roberts
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Patent number: 9358961Abstract: A disc brake, in particular for a commercial vehicle, including a brake caliper, which reaches over a brake disc and in which brake pads are positioned that can be pressed against the brake disc on both sides by at least one brake application device and that each have a lining carrier plate and a friction lining fastened thereto. The brake application device has at least one brake piston that acts on the lining carrier plate at the end face of the brake piston. The disc brake is designed such that at least one of the brake pads is supported in an articulated, pivotable, manner in the radial direction of the brake disc.Type: GrantFiled: March 28, 2014Date of Patent: June 7, 2016Assignee: KNORR-BREMSE System fuer Nutzfahrzeuge GmbHInventor: Wolfgang Pahle
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Patent number: 9193413Abstract: A disc brake caliper is provided. The disc brake caliper may include a main body having a first portion, a second portion having no bleeding port, and a connecting portion connecting the first portion with the second portion such that a slot for arranging a disc rotor is defined between the first portion and the second portion. Arranged on the first portion are a first fluid port and a second fluid port fluidly connected to the first fluid port by a fluid flow path.Type: GrantFiled: June 11, 2014Date of Patent: November 24, 2015Assignee: Shimano Inc.Inventor: Daisuke Nago
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Patent number: 9181999Abstract: The invention illustrates a caliper body (1) for a disc brake, suitable for being arranged astride of a disc (40) for a disc brake, said disc (40) defining a first braking surface (41) and a second braking surface (42) opposite the first braking surface (41); said caliper body (1) comprising a first half-caliper (2) and a second half-caliper (3), which are obtained by casting without machining and are suitable for being connected together at respective contact surfaces (4?, 4?) defining a joining plane (P) of the half-calipers; said first half-caliper (2) comprising a wheel-side elongated portion (5), extending in a tangential direction, which is suitable for facing an axially inner surface thereof towards the first braking surface (41), and at least one first projecting portion (11), projecting in an axial direction provided with a first contact surface (4?) suitable for connecting with the second half-caliper (3); said second half-caliper (3) comprising a vehicle-side elongated portion (6), extending in a tType: GrantFiled: July 5, 2011Date of Patent: November 10, 2015Assignee: FRENI BREMBO S.p.A.Inventors: Fabio Scotti, Armando Puddu, Antonio Gotti
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Patent number: 9145120Abstract: A sliding caliper parking brake that positively retracts of both the outer and the inner brake pads upon de-actuation of the parking brake is provided. The parking brake includes a caliper body, a mounting assembly that slidably mounts the caliper body on the suspension of the vehicle so that is movable with respect to a brake rotor, and at least one piston assembly movably mounted in a bore in the caliper body and having an end connected to an inner brake pad. An outer brake pad is fixedly connected to the caliper body and is moved into engagement with an outer side of the brake rotor when the caliper body is moved along the mounting assembly as a result of the inner brake pad extending into engagement with the inner side of the brake rotor.Type: GrantFiled: September 9, 2011Date of Patent: September 29, 2015Assignee: Performance Friction CorporationInventors: Donald L. Burgoon, Darin E. Cate
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Patent number: 8997945Abstract: This invention relates to a brake caliper adapted for use in a vehicle disc brake assembly and method and apparatus for producing the same. The method for producing the brake caliper comprises the steps of: (a) providing a mold member having at least two mold sections; (b) providing a core member having at least a first male extension which is adapted to form an integrally cast locating recess in the brake caliper which is used as a locating surface for subsequent machining of the brake caliper; (c) disposing the core member in the mold member in a predetermined position; (d) supplying a suitable material to the mold member so as to form a brake caliper within the mold; (e) removing the brake caliper from the mold, wherein the brake caliper includes an integrally cast locating recess formed therein by the first male extension of the core member; and (f) machining the brake caliper using at least the integrally cast locating recess formed therein as a locating surface.Type: GrantFiled: January 29, 2007Date of Patent: April 7, 2015Assignee: Kelsey-Hayes CompanyInventors: Eduardo Morais, Harry Miller
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Publication number: 20150060216Abstract: A full contact brake comprising: (a) an inboard housing including: an inner and outer seal groove including a seal; (b) an outboard housing including: an inner and outer seal groove including a seal; and (c) a bridge tube between the inboard housing and the outboard housing; wherein the inboard housing, the outboard housing, and the bridge tube form a housing comprising: (i) an inboard piston between the inner and outer seal groove; (ii) an outboard piston between the inner and outer seal groove; and (iii) a rotor between the inboard and outboard piston so that the inboard piston is moved towards an inboard side and the outboard piston is moved towards an outboard side of the rotor; and wherein the seal of the inboard housing forms an interference fit around the respective piston so that rotation of the inboard and outboard piston respectively are substantially prevented during a brake apply.Type: ApplicationFiled: August 27, 2013Publication date: March 5, 2015Applicant: Akebono Brake CorporationInventors: Galus Chelaidite, Gang Lou
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Publication number: 20150021125Abstract: A caliper assembly for a service and parking disc brake (1) comprising a service caliper body (2) placed astride a disc for a disc brake having a first and second elongated element on the vehicle side (4), a first service pad (8) to abut it against a first braking surface of the disc and exercise a service braking action on the vehicle, said first elongated element (4) comprising a first abutment and guide pin (16) of the first pad (8) to guide it and receive the braking action of the vehicle, a parking caliper (17) comprising separate thrust means (20) of the parking caliper and for abutting at least a third parking pad (21) against the first braking surface of the disc, said parking caliper (17) has a connection (18) for supporting and connecting at least partially said parking caliper (17) to said service caliper body (2), said connection (18) of the parking caliper (17) to the service caliper body (2) comprises a first blocking screw (19) positioned coaxially to said first support and guide pin (16) of thType: ApplicationFiled: February 15, 2013Publication date: January 22, 2015Applicant: Freni Brembo S.p.A.Inventors: Lorenzo Nessi, Adriano Bonetti, Cristian Crippa
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Patent number: 8899386Abstract: 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.Type: GrantFiled: January 31, 2011Date of Patent: December 2, 2014Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Baumgartner, Robert Gruber, Aleksandar Pericevic, Steffen Geissler, Robert Trimpe
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Patent number: 8887875Abstract: A caliper body (1) for a disc brake unusually capable of high structural performance and low bulk, said caliper body comprising at least one connection bridge (6) arranged straddling the connection disc of an elongated attachment side portion with an elongated non-attachment side portion; in which said elongated portions have an outer surface (13, 14) opposite the disc substantially inclined and rounded towards the disc in the radially outward direction so that the caliper body (1) viewed in the tangential or circumferential direction has a bulk with a rounded outer surface like a tortoise shell.Type: GrantFiled: May 28, 2010Date of Patent: November 18, 2014Assignee: Freni Brembo S.p.A.Inventors: Pierangelo Gherardi, Marco Caronia
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Publication number: 20140251737Abstract: A disc brake includes a pair of end-side connector parts that connect a pair of cylinder parts across over a disc rotor, and an intermediate connector part that is installed between the end-side connector parts and that connects the pair of cylinder parts across over the disc rotor and brake pads. The brake pads are provided with protrusion segments that are formed at positions that are outer end sides in a rotor radial direction and that protrude in directions separated from middle portions of the brake pads in a rotor rotational direction, and the end-side connector parts are provided with pad engaging faces on which inner regions in the rotor radial direction of the protrusion segments are oppositely disposed and which are formed of the same member as a caliper main body.Type: ApplicationFiled: March 6, 2014Publication date: September 11, 2014Applicant: HITACHI AUTOMOTIVE SYSTEMS, LTD.Inventor: Keisuke NANRI
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Patent number: 8789663Abstract: A bicycle hydraulic brake clamp includes a clamp, two piston assemblies and a separation board. The clamp has a first slot defined on the middle thereof so that a brake disk is received therein. A second slot and a third slot are respectively defined in two sides of the clamp. A through hole is defined through the clamp and communicates with the third slot. The separation board is fixedly engaged with the through hole via the first slot by a way of welding. The two piston assemblies are respectively installed in the second and third slots via the first slot. The separation board is securely engaged with the through hole so as not only to prevent the separation board from dropping from the clamp by exterior impact, but also to protect the separation board from being damaged by the exterior impact.Type: GrantFiled: August 26, 2011Date of Patent: July 29, 2014Assignee: Ashima Ltd.Inventor: Wayne-Ian Moore
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Patent number: 8783423Abstract: A disc brake having a rotor and a caliper is provided and includes a first and second brake pad situated on the same side of the rotor whereby in a non-braking state the first brake pad is in contact with the rotor and the second brake pad is offset from the rotor. In a light braking state the first pad acts against the rotor with additional force to thereby slow or stop the vehicle. In a heavier braking state both the first and second brake pads act against the rotor to thereby slow or stop the vehicle.Type: GrantFiled: December 21, 2007Date of Patent: July 22, 2014Assignee: Honda Motor Co., Ltd.Inventor: Mark Schrewe
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Patent number: 8776957Abstract: A brake retractor assembly (10) for a vehicle, such as an agricultural vehicle, includes a brake housing (12) and a brake cover (14) defining a friction chamber (16). A brake piston (18) is arranged within the friction chamber (16) and coupled to the brake cover (14) by a bolt (44) including a first end (46) coupled to the brake cover (14) and a second end (48) coupled to the brake piston (18). A portion of the second end (48) passes through the brake piston (18) via a bore (64) defined in the brake piston (18) and is fixedly retained to the brake piston (18). An actuation system (24) is coupled to apply an axial force to the brake piston (18). Activation of the actuation system (24) results in axial movement of the brake piston (18) in a first direction (80). Deactivation of the actuation system (24) results in axial movement of the brake piston in a second direction (82). Axial movement of the brake piston (18) in the second direction (82) is limited by the fixed retention of the bolt to the brake piston.Type: GrantFiled: July 7, 2008Date of Patent: July 15, 2014Assignee: Deere & CompanyInventor: Richard N. Knowles
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Patent number: 8733515Abstract: There is provided a caliper body for a two system-type disc brake for a vehicle, which is reduced in size and has an improved air bleeding property by employing a simple structure. In the caliper body for the two-system disc brake for the vehicle, a communication path, which connects cylinder holes for a first brake system, and a first bleeder hole are formed rectilinearly on an outside, in a disc radius direction, of an imaginary line IL1 which rectilinearly connects inner edges, in the disc radius direction, of cylinder holes for a first brake system and a cylinder hole for a second brake system is provided on an outside, in the disc radius direction, of the communication path.Type: GrantFiled: February 10, 2010Date of Patent: May 27, 2014Assignee: Nissin Kogyo Co., Ltd.Inventors: Yoichi Hiramori, Toshihiro Kusano
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Patent number: 8534428Abstract: 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.Type: GrantFiled: July 6, 2009Date of Patent: September 17, 2013Assignee: Shimano Inc.Inventors: Takahiro Yamashita, Shinichi Takizawa
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Patent number: 8479891Abstract: A hydraulic brake clamp for bikes includes a clamp, two piston assemblies and a cap. The clamp has a brake disk room defined on the middle thereof so that a brake disk is received therein. An assembling room and a receiving room are respectively defined in two sides of the clamp. The brake disk room, the assembling room and the receiving room are in communication with each other. A connecting hole is defined through the clamp and communicates with the receiving room. The piston assemblies are assembled from the brake disk room to the assembling room and the receiving room. The cap is threaded into the receiving room via the connecting hole for sealing the receiving room and preventing the piston assemblies from dropping out from the connecting hole.Type: GrantFiled: September 1, 2011Date of Patent: July 9, 2013Assignee: Ashima Ltd.Inventor: Wayne-Ian Moore
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Patent number: 8365878Abstract: A hydraulic disc brake caliper housing that includes first and second side portions and first and second end portions that cooperate to define a fluid path defined therein that extends between a fluid inlet and a fluid outlet. The fluid path extends from the fluid inlet, through the second side portion, through the first end portion, through the first side portion and to the fluid outlet.Type: GrantFiled: September 5, 2008Date of Patent: February 5, 2013Assignee: Shimano Inc.Inventors: Shinichi Takizawa, Osamu Kariyama, Kenichi Kikuno
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Patent number: 8307957Abstract: A disk brake for a vehicle having a bracket which is fixed with respect to the vehicle and on which brake linings and at least one brake caliper are mounted so as to be movable in an axial direction is disclosed. The bracket and the brake caliper engage around at least one brake disk, and the brake caliper includes a housing limb with at least one actuating device, a further housing limb with at least one housing finger, and a housing bridge. A spring arrangement which generates an elastic preload between the brake caliper and the bracket is provided in such a way that the preload is aligned substantially perpendicular to a movement direction of the brake caliper. The spring arrangement comprises a spring element and a protective panel.Type: GrantFiled: May 9, 2007Date of Patent: November 13, 2012Assignee: Continental Teves AG & Co. oHGInventors: Stefan Heinz, Christoph Sander, Uwe Bach, Ralf Sundheim, Roberto Stoka
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Patent number: 8272484Abstract: A hydraulic caliper brake including a housing having a first half and a second half and a bridge connecting the housing halves. Each half of the housing includes a bore having a fluid chamber and a piston therein. The caliper brake also includes a fluid network having an inlet port and a bleed port in the first half of the housing, a first channel extending through the bridge and in fluid communication with the inlet port and the fluid chamber in the second half of the housing, and a second channel extending through the bridge and in fluid communication with the fluid chamber in the second half of the housing and the bleed port. A dual-flow passage is provided and is in fluid communication with the fluid chamber in the first half of the housing and the second channel. The fluid chamber in the first half is not in fluid communication with the first channel.Type: GrantFiled: April 30, 2009Date of Patent: September 25, 2012Assignee: Ausco Products, Inc.Inventors: Brian P. Dennis, Kenneth A. Dodd, Norman D. Crawford, Peter J. Pozivilko
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Patent number: 8196716Abstract: 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.Type: GrantFiled: December 30, 2003Date of Patent: June 12, 2012Assignee: Freni Brembo S.p.A.Inventors: Michael Schorn, Giovanni Mario Tironi, Enrico Battista Ongaretti, Paolo Sala
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Patent number: 7971689Abstract: 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.Type: GrantFiled: March 28, 2008Date of Patent: July 5, 2011Inventor: Wayne-Ian Moore
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Patent number: 7958974Abstract: 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.Type: GrantFiled: February 3, 2009Date of Patent: June 14, 2011Assignee: KNORR-BREMSE Systeme fuer Nutzfahrzeuge GmbHInventors: Johann Baumgartner, Robert Gruber, Robert Trimpe
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Patent number: 7958975Abstract: A brake caliper on a brake, such as a disc brake includes raised sections, which can be embodied as plateaus. The raised sections are tensioned against each other via a connector device by the introduction of tensile or compression forces. Noises occurring during braking can thus be significantly reduced.Type: GrantFiled: February 9, 2004Date of Patent: June 14, 2011Assignee: TMD Friction Service GmbHInventors: Reinhard Eisengräber, Kristof Terfloth
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Patent number: 7942482Abstract: What is disclosed is a brake system for a mobile machine, e.g., for a wheel loader, comprising two hydraulic circuits to each of which at least one respective wheel brake cylinder is associated. Control of the wheel brake cylinders is effected through a brake valve arrangement which, in accordance with the invention, is formed by two brake valves each realized with a hydraulic pilot control, wherein the braking pressure at the one brake valve is reported via a control line into a pilot control chamber of the other brake valve.Type: GrantFiled: February 27, 2004Date of Patent: May 17, 2011Assignee: Bosch Rexroth AGInventor: Hubertus Mies
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Patent number: 7926625Abstract: A disk braking device suppresses warp of friction members and deterioration in reaction at the time of braking, and provides friction members with a uniform service life, where pistons are increased in number to heighten a braking force. A piston mechanism comprises pistons arranged along an outer periphery of a disk plate. The pistons are allotted to a plurality of piston portions that have different cylinder areas s1 and (s2+s3). A pad unit is divided into a plurality of pad unit portions that have different total pressure contact areas p1 and (p2+p3) corresponding to the cylinder areas s1 and (s2+s3).Type: GrantFiled: August 29, 2006Date of Patent: April 19, 2011Assignee: Yamaha Hatsudoki Kabushiki KaishaInventors: Hideo Kawai, Manabu Abe, Itsurou Migita, Kazuaki Ura, Masatoshi Kurita, Fujio Ikki
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Patent number: 7849977Abstract: An optimized disc brake includes two fixed mountings and one free mounting, and an assembly space optimized brake carrier and corresponding brake lining for a reaction side of the disc brake are provided.Type: GrantFiled: April 18, 2007Date of Patent: December 14, 2010Assignee: Knorr-Bremse Systeme fuer Nutzfahrzeuge GmbHInventors: Robert Gruber, Wlodzimierz Macke, Dietmar Knoop, Georg Kempinger, Wolfgang Pritz
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Patent number: 7757822Abstract: An opposed piston disc brake caliper has a caliper housing arranged for mounting brake shoes on each of opposite sides of a rotor. The rotor in use is disposed between the brake shoes with each brake shoe having a backing plate and a friction lining applied to the backing plate. The caliper housing has side walls extending generally in a plane parallel to a plane of the rotor and on opposite sides of the plane of the rotor which accommodate a piston. The caliper housing has mounting members for engagement with each of the side edges of each backing plate between the radially inner edge and the radially outer edge of the friction lining. The engagement is such as to substantially limit movement of each brake shoe other than in a direction toward or away from the rotor with at least one of the mounting members being removable from the caliper housing to facilitate removal of the brake shoe from the caliper housing.Type: GrantFiled: April 16, 2008Date of Patent: July 20, 2010Assignee: PBR Australia Pty Ltd.Inventor: Keith Clarkson Reeves
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Publication number: 20100096223Abstract: 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.Type: ApplicationFiled: October 13, 2009Publication date: April 22, 2010Applicant: ADVICS CO., LTD.Inventors: Satoru ITSUAKI, Shinichi MORITA
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Publication number: 20100051394Abstract: In on embodiment, a brake system of bicycle including left and right brake levers, front and rear wheels, a front disc brake, and a rear disc brake having a first unit and an independent second unit, the brake system includes a hydraulic line interconnected the right brake lever and the first unit; and a Y-shaped hydraulic line having a first branch connected to the left brake lever, a second branch connected to the front disc brake, and a third branch connected to the second unit. Pressing the right brake lever will actuate the first unit via the hydraulic line to brake the rear wheel, and pressing the left brake lever will actuate the front disc brake via the first and second branches to brake the front wheel and actuate the second unit via the first and third branches to brake the rear wheel respectively.Type: ApplicationFiled: August 26, 2008Publication date: March 4, 2010Inventor: Szu-Fang Tsai
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Patent number: 7610997Abstract: A brake caliper for a disk brake, in particular for motorcycles and/or bicycles, includes a housing (30) in which a disk space (39) for receiving a brake disk and a brake cylinder (35) for receiving a brake piston (25) are formed. The brake cylinder (35) is connected to the disk space (39) and has, on its side opposite to the disk space (39), an assembly opening (50) through which the brake piston (25) can be inserted into the brake cylinder (35). A closure element (10) closes the assembly opening (50) after the insertion of the brake piston (25) into the brake cylinder (35). A securing element (21) secures the closure element (10) in the assembly opening (50) against forces in the direction of the main axis of the brake cylinder (35).Type: GrantFiled: June 9, 2005Date of Patent: November 3, 2009Assignee: Gustav Magenwirth GmbH & Co. KGInventor: Michael Roupp
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Publication number: 20090236187Abstract: A disk brake having a brake caliper, which engages axially in a U shape around a rotatable brake disk is provided. The disk brake includes a caliper bridge, two caliper limbs and at least one actuating device. At least one brake lining is mounted in an axially movable fashion in the brake caliper. The caliper bridge has, in the peripheral direction, at least three substantially axially extending supports, wherein two of the supports are embodied as a main support and one support is embodied as a central support. These supports connect the two caliper limbs and in the process form two windows and axially project beyond the brake disk. The central support projects both beyond the brake disk and beyond the brake lining in the axial direction.Type: ApplicationFiled: April 10, 2007Publication date: September 24, 2009Applicant: Continental Teves AG & Co. oHGInventors: Uwe Bach, Ralf Sundheim, Volker van Aken
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Publication number: 20090200121Abstract: A hydraulic disc brake caliper housing that includes first and second side portions and first and second end portions that cooperate to define a fluid path defined therein that extends between a fluid inlet and a fluid outlet. The fluid path extends from the fluid inlet, through the second side portion, through the first end portion, through the first side portion and to the fluid outlet.Type: ApplicationFiled: September 5, 2008Publication date: August 13, 2009Applicant: Shimano Inc.Inventors: Shinichi TAKIZAWA, Osamu Kariyama, Kenichi Kikuno
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Publication number: 20090159378Abstract: A disc brake having a rotor and a caliper is provided and includes a first and second brake pad situated on the same side of the rotor whereby in a non-braking state the first brake pad is in contact with the rotor and the second brake pad is offset from the rotor. In a light braking state the first pad acts against the rotor with additional force to thereby slow or stop the vehicle. In a heavier braking state both the first and second brake pads act against the rotor to thereby slow or stop the vehicle.Type: ApplicationFiled: December 21, 2007Publication date: June 25, 2009Applicant: HONDA MOTOR CO., LTD.Inventor: Mark Schrewe
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Publication number: 20090152056Abstract: A disk brake for a vehicle having a bracket which is fixed with respect to the vehicle and on which brake linings and at least one brake caliper are mounted so as to be movable in an axial direction is disclosed. The bracket and the brake caliper engage around at least one brake disk, and the brake caliper includes a housing limb with at least one actuating device, a further housing limb with at least one housing finger, and a housing bridge. A spring arrangement which generates an elastic preload between the brake caliper and the bracket is provided in such a way that the preload is aligned substantially perpendicular to a movement direction of the brake caliper. The spring arrangement comprises a spring element and a protective panel.Type: ApplicationFiled: May 9, 2007Publication date: June 18, 2009Inventors: Stefan Heinz, Christoph Sander, Uwe Bach, Ralf Sundheim, Roberto Stoka