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公开(公告)号：US20250010828A1
公开(公告)日：2025-01-09
申请号：US18894462
申请日：2024-09-24
Applicant: Lance A. Stacy
Inventor： Lance A. Stacy
Abstract: Brake systems, vehicles having such brake systems, and methods of operating and installing the brake systems on vehicles. Such a brake system operates one or more brakes to reduce the speed of the vehicle through the operation of a brake pedal. The system includes a hydraulic circuit functionally coupled to the one or more brakes and configured to apply a braking force with the brake(s) that is in relation to a change in pressure of hydraulic fluid within the hydraulic circuit, and an air circuit functionally coupling the brake pedal to the hydraulic circuit. The air circuit is configured to convert manual actuation of the brake pedal to a change in the pressure of the hydraulic fluid within the hydraulic circuit and thereby apply a braking force in relation to a degree of actuation of the brake pedal.
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公开(公告)号：US20240309918A1
公开(公告)日：2024-09-19
申请号：US18122127
申请日：2023-03-16
Applicant: Feng-Yu Kuan
Inventor： Feng-Yu Kuan
CPC classification number: F16D59/00 , F16D63/006 , F16D65/22 , F16D2121/14
Abstract: A rotating shaft braking structure includes a retaining member, having a shaft hole and an inner toothed portion; a rotating shaft pivoted in the shaft hole, including a shaft and an extension shaft having two drive blocks; two swing plates, engaged with the respective drive blocks, each swing plate having an outer toothed section and linking posts; a brake flywheel, having a receiving groove and four traction grooves, the extension shaft being pivoted to the brake flywheel so that the drive blocks abut against the receiving groove and the linking posts are engaged in the traction grooves; the brake flywheel being deflected at a predetermined angle for the outer toothed section to be engaged with or disengaged from the inner toothed portion; an adjustment wheel; and a torsion spring, disposed between the brake flywheel and the adjustment wheel, the torsion spring producing a torque on the brake flywheel.
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公开(公告)号：US11976698B2
公开(公告)日：2024-05-07
申请号：US17356018
申请日：2021-06-23
Applicant: HYUNDAI MOBIS CO., LTD.
Inventor： Chi Hoon Jo
IPC: B60T13/74 , F16D51/22 , F16D51/24 , F16D65/22 , F16D121/04 , F16D121/24 , F16D125/06 , F16D125/40
CPC classification number: F16D51/24 , F16D51/22 , F16D65/22 , F16D2121/04 , F16D2121/24 , F16D2125/06 , F16D2125/40
Abstract: A drum brake apparatus includes a housing; a main braking unit installed on one part of the housing, and driven by a hydraulic pressure and pressing a shoe, during main braking; a parking braking unit installed on the other part of the housing, and driven by an electromotive force of an actuator and pressing the shoe, during parking braking; and a locking member locked to the housing through the actuator and a back plate, and fastening the actuator and the housing to the back plate.
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公开(公告)号：US20240092331A1
公开(公告)日：2024-03-21
申请号：US17946079
申请日：2022-09-16
Applicant: ZF Active Safety US Inc.
Inventor： Kraig Gerber , Galus Chelaidite
CPC classification number: B60T13/746 , F16D51/48 , F16D65/22 , F16D2121/24
Abstract: An electric actuator assembly for a drum brake assembly having a brake drum includes a housing and a gear nut configured for rotation by a motor and provided in the housing. A pin extends longitudinally within the housing and is associated with a first clevis for receiving a first brake shoe. A spindle extends longitudinally within the housing and is aligned with the pin. The spindle has a first threaded connection with a second clevis for receiving a second brake shoe and a second threaded connection with the gear nut. The distance between the first clevis and the second clevis increases in response to rotation of the gear nut to move the brake shoes towards the drake drum. The second clevis is urged towards the first clevis in response to cooling of the brake drum in order to back drive the spindle and gear nut and thereby reduce the distance between the first clevis and second clevis.
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公开(公告)号：US11906007B2
公开(公告)日：2024-02-20
申请号：US17517154
申请日：2021-11-02
Applicant: HYUNDAI MOTOR COMPANY , KIA CORPORATION
Inventor： Sang Weol Han , Jung Hoon Jin , Yoon Hwan Kim
IPC: F16D65/22 , F16D65/00 , F16D51/24 , F16D51/22 , F16D125/30 , F16D121/08 , F16D65/38
CPC classification number: F16D65/22 , F16D51/22 , F16D51/24 , F16D65/0006 , F16D65/38 , F16D2121/08 , F16D2125/30 , F16D2200/0013 , F16D2250/0007
Abstract: An S-cam brake including a brake chamber to which compressed air is supplied; a slack adjuster rotatably connecting to the brake chamber; an S-cam unit having an S-cam connecting to and rotating around the slack adjuster; and a drum having a lining generating braking force with widening according to rotation of the S-cam is provided, wherein the brake chamber includes an upper housing having an air supply port through which compressed air is introduced; a lower housing coupled to the upper housing to form an internal space; a diaphragm having edges fixed to the upper housing and the lower housing and deformed by compressed air; a piston disposed to contact the diaphragm and move linearly; a piston push rod extending from the piston and having one end connected to the slack adjuster; and a spring having one end supported by the piston and the other end supported by the lower housing, wherein a thickness of the upper housing is greater than a thickness of the lower housing.
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Patent Agency Ranking
公开(公告)号：US20230286485A1
公开(公告)日：2023-09-14
申请号：US18081959
申请日：2022-12-15
Applicant: HYUNDAI MOBIS Co., Ltd.
Inventor： Dae Ung Jeon
CPC classification number: B60T13/746 , B60T1/067 , F16D65/22 , F16D2121/24
Abstract: The present disclosure relates to a drum brake. The drum brake includes a bolt screw being rotated in conjunction with drive of a first motor, a nut piston being combined by a bolt-nut fastening with a circumference of the bolt screw and being moved toward a direction in which the nut piston presses against a shoe, in conjunction of the rotation of the bolt screw, and a press nut being combined by the bolt-nut fastening with a circumference of the nut piston, being moved toward an axial direction in conjunction with drive of a second motor, being brought into contact with the bolt screw, and thus preventing the nut piston from being pushed due to a reaction force of the shoe.
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公开(公告)号：US20230213077A1
公开(公告)日：2023-07-06
申请号：US18091696
申请日：2022-12-30
Applicant: HL MANDO CORPORATION
Inventor： Hatem SHAHIN
CPC classification number: F16D65/22 , F16D65/12 , F16D55/04 , F16D2121/18
Abstract: A brake assembly includes a braked member that is coupable or coupled to the vehicle wheel for a joint rotation therewith about a rotational axis, the braked member having contact surfaces that are arranged at an axial distance from one another and a braking unit that comprises a brake force generator and at least two brake pads, the brake pads being positioned in between the contact surfaces, wherein the brake force generator is configured move the brake pads axially apart from one another, thereby bringing each brake pad into contact with one of the contact surfaces of the braked member.
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公开(公告)号：US20230193969A1
公开(公告)日：2023-06-22
申请号：US18086601
申请日：2022-12-21
Applicant: HL MANDO CORPORATION
Inventor： Pyeongkook SON , Jinseok Kim
CPC classification number: F16D65/22 , F16D51/20 , F16D2121/24
Abstract: An electro-mechanical drum brake is disclosed. An electro-mechanical drum brake according to one aspect of the present disclosure may include a back plate, a drum disposed on one side of the back plate, a first brake shoe and a second brake shoe rotatably coupled on one surface of the back plate, a pressing member configured to press one sides of the first brake shoe and the second brake shoe so that the first brake shoe and the second brake shoe advance toward or retreat from an inner circumferential surface of the drum, an actuator configured to provide a driving force so that the pressing member presses the first and second brake shoes, and a sensor positioned between the other sides of the first and second brake shoes and formed to measure loads of the first and second brake shoes applied in a first direction tangent to a rotational radius of the drum.
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公开(公告)号：US20230166703A1
公开(公告)日：2023-06-01
申请号：US17910635
申请日：2020-12-18
Applicant: Hitachi Astemo, Ltd. , Hitachi Astemo Ueda, Ltd.
Inventor： Sandip PURANE , Yasuhiro YAMAMOTO , Mari TAKAHASHI
CPC classification number: B60T8/885 , B60T1/067 , F16D65/52 , F16D65/22 , B60T13/746 , F16D51/22 , B60T17/22 , F16D66/00 , F16D2121/24
Abstract: Provided is an electric parking brake device in which a drum brake includes braking gap automatic adjustment means and a parking brake lever, and the operation of an electric actuator that drives the parking brake lever is controlled by a control unit. When an application operation time of the electric actuator (38) by the time when a parking brake state is obtained has exceeded a predetermined application operation end determination time (T2), the control unit (C) determines that the braking gap automatic adjustment means (18) is abnormal. With this configuration, at the time of obtaining the parking brake state, the presence or absence of abnormality in the braking gap automatic adjustment means can be determined.
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公开(公告)号：US11661982B2
公开(公告)日：2023-05-30
申请号：US17137554
申请日：2020-12-30
Applicant: HYUNDAI MOBIS Co., Ltd.
Inventor： Min Kyu Jung
IPC: F16D51/24 , F16D65/22 , F16D51/22 , B60T1/06 , F16D127/02 , F16D121/04 , F16D121/24 , F16D125/32
CPC classification number: F16D51/24 , B60T1/067 , F16D51/22 , F16D65/22 , B60T2270/402 , F16D2121/04 , F16D2121/24 , F16D2125/32 , F16D2127/02
Abstract: An electronic parking brake device including: a plate part having a brake shoe rotatably mounted thereon; a housing part mounted on the plate part and configured to guide hydraulic pressure; a motor part mounted on the housing part, and driven when power is applied thereto; a piston part mounted on the housing part, and moved by hydraulic pressure so as to operate the brake shoe; and an operation part embedded in the housing part, disposed between the piston parts, and driven by the motor part so as to push the piston parts.
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