公开(公告)号：US20250058758A1

公开(公告)日：2025-02-20

申请号：US18603594

申请日：2024-03-13

Applicant: HL MANDO CORPORATION

Inventor： Daejune JUNG

IPC: B60T13/74 ,  B60T17/22 ,  F16D55/226 ,  F16D65/18 ,  F16D121/24 ,  F16D125/40

Abstract: An actuator may include: a first gear configured to rotate by a motor; a second gear operably connected to the first gear and configured to convert a rotary movement of the first gear into a linear movement; and a footer configured to move linearly together with the second gear to move a back plate of a brake pad. A stopper protrusion may be provided at one end portion of the first gear, the footer may have a stopper groove having a shape of a substantially circular arc or a partial circle such that the stopper protrusion rotating together with the first gear can be inserted in the stopper groove, and as the footer becomes closer to the one end portion of the first gear, the stopper protrusion may be inserted into the stopper groove to prevent the first gear from rotating.

公开(公告)号：US12228185B2

公开(公告)日：2025-02-18

申请号：US17439991

申请日：2020-03-18

Applicant: Hitachi Astemo, Ltd.

Inventor： Rikiya Yoshizu

IPC: F16D65/18 ,  B60T13/74 ,  F16D121/24 ,  F16D127/06

Abstract: The present disk brake includes a braking force holding mechanism configured to restrict a rotation of a rotational shaft (a ratchet gear) to hold a braking force based on driving of a solenoid actuator. The braking force holding mechanism includes a holding member configured to move based on the driving of the solenoid actuator to restrict the rotation of the ratchet gear, and an engagement member coupled with this holding member. The engagement member is rotatably supported on a gear housing portion, and is configured to prohibit a movement of the holding member. Due to this configuration, an excitation force applied from outside to the holding member can be canceled out with the aid of the engagement member, and thus the disk brake can realize a size reduction and achieve cost saving.

公开(公告)号：US12227153B2

公开(公告)日：2025-02-18

申请号：US17631513

申请日：2020-07-23

Applicant: Brembo S.p.A.

Inventor： Paolo Sala ,  Martina Truffello ,  Corrado Manzoni

IPC: F16D65/18 ,  B60T13/58 ,  B60T13/66 ,  B60T13/74 ,  F16D55/228 ,  F16D121/04 ,  F16D121/24 ,  F16D123/00 ,  F16D125/08 ,  F16D125/40 ,  F16D125/50 ,  F16D125/52

Abstract: A hydraulic and electromechanical service and parking disc brake may have a service braking system, having at least one hydraulic actuator, a parking braking system having at least one electromechanical actuator transmission irreversibility, a control system connected to the service braking system and to the parking system and a user interface. A translational member of the electromechanical actuator is restrained to be rotationally integral with respect to the caliper via an anti-rotation shape coupling with a guide portion which is integral with the caliper and arranged on a rear side of the translational member, opposite to the free end.

公开(公告)号：US12202454B2

公开(公告)日：2025-01-21

申请号：US17620267

申请日：2020-06-22

Applicant: Hitachi Astemo, Ltd.

Inventor： Daichi Nomura ,  Takuya Usui

IPC: B60T13/74 ,  B60T1/06 ,  F16D55/226 ,  F16D65/18 ,  F16D121/24

Abstract: Provided is an electric brake device including one caliper including at least two electric mechanisms each configured to apply a braking force to a vehicle and to maintain the braking force. The at least two electric mechanisms are to be driven by one drive circuit output, that is, one output from one drive circuit. In this manner, for example, even when it is required to control a large number of electric mechanisms as in a case in which the electric brake device is applied to a twin-bore caliper, the number of drive circuits for driving the electric mechanisms can be reduced, thereby being capable of reducing cost.

公开(公告)号：US20250010837A1

公开(公告)日：2025-01-09

申请号：US18710028

申请日：2022-12-08

Applicant: Aircraft Wheel and Brake, LLC.

Inventor： Eric A. POLCUCH ,  Michael J. GLOW

IPC: B60T13/74 ,  F16D55/38 ,  F16D65/18 ,  F16D65/56 ,  F16D121/24 ,  F16D125/36 ,  F16D125/40 ,  F16D125/48

Abstract: A brake actuator is configured to perform either a braking operation, or an auto-adjustment operation of an air gap between an actuator output shaft and a brake stack. The brake actuator includes a conjugate ramp track containing a bearing ball, the conjugate ramp track being formed by matching ball ramp tracks of an input ball ramp and an output ball ramp. The output ball ramp is connected to the output shaft by a threaded interface to move the output shaft by rotation of the input ball ramp. The conjugate ramp track is a multi-angle ball ramp track thereby including areas of different gain. The input ball ramp is rotated in a first direction to perform the braking operation, and the input ball ramp is rotated in a second, opposite direction to perform the auto-adjustment operation. During the auto-adjustment operation, a position of the output shaft is automatically adjusted when the air gap has a dimension that is larger than an operable dimension to adjust the air gap to be within the operable dimension.

公开(公告)号：US20240426354A1

公开(公告)日：2024-12-26

申请号：US18750022

申请日：2024-06-21

Applicant: ZF CV Systems Europe BV

Inventor： Paul Henning

IPC: F16D51/10 ,  F16D51/00 ,  F16D65/22 ,  F16D65/50 ,  F16D121/02 ,  F16D121/24 ,  F16D125/66

Abstract: A vehicle drum brake includes a drum (3) having an inner friction surface (21) formed circumferentially, a brake carrier (5) that can move in rotation relative to the drum (3) about a drum axis (X), and a brake lining assembly (7) arranged on the brake carrier (5). The brake lining assembly (7) has a plurality of radially movable lining carriers (11), on each of which a brake lining segment (9) is provided, facing the friction surface (21). The drum brake (1) has an actuating ring (13) displaceable along the drum axis (X) and rotatable about the drum axis (X), and a displacement surface arrangement (30), which is operatively connected to the lining carriers (11). The displacement surface arrangement (30) is shaped such that both the axial displacement and the rotary movement of the actuating ring (13) bring about a respective synchronous radial movement of all the lining carriers (11).

公开(公告)号：US12168428B2

公开(公告)日：2024-12-17

申请号：US17691975

申请日：2022-03-10

Applicant: HL MANDO CORPORATION

Inventor： Woochul Lim ,  Joon-kyu Song ,  Daejune Jung

IPC: B60T13/74 ,  F16D55/02 ,  F16D65/18 ,  F16D121/24 ,  F16D125/40 ,  F16D125/50 ,  F16D125/52

Abstract: Disclosed herein an electric parking brake includes a pair of pressing portions provided in a caliper housing to convert rotational motion into linear motion to press a brake pad; an actuator configured to transmit power to the pair of pressing portions; and a load control portion provided rotatably between the pair of pressing portions and the actuator, the load control portion applying a uniform load to the pair of pressing portions by pressing any one of the pair of pressing portions that generates a less load during braking operation.

公开(公告)号：US12168427B2

公开(公告)日：2024-12-17

申请号：US17418413

申请日：2019-12-18

Applicant: FOUNDATION BRAKES FRANCE

Inventor： Alberto Molinaro ,  Cédric Guignon ,  Luu Gérard ,  Christophe Dupas

IPC: B60T13/74 ,  B60T1/06 ,  F16D65/22 ,  F16D121/24

Abstract: A reduction motor for a parking brake mechanical actuator of a drum brake comprising an electric motor comprising an output shaft extending along a first axis, and a reduction gearbox comprising an output shaft extending along a second axis, in which the reduction gearbox, comprises stepped tangentially-meshing spur gears, each stepped gear comprising a gearwheel and a coaxial pinion, these being superposed on and secured to each other in terms of rotation, the stepped gears being mounted with the ability to rotate about mutually parallel axes.

公开(公告)号：US12162450B2

公开(公告)日：2024-12-10

申请号：US17774600

申请日：2020-10-12

Applicant: HL MANDO CORPORATION

Inventor： Prakash D Sunke ,  Sudhirkumar S Karajgi

IPC: B60T13/74 ,  F16D65/16 ,  F16D121/24 ,  F16D125/50 ,  F16D127/06 ,  F16D129/08

Abstract: Disclosed is an actuator for a parking brake. In accordance with an aspect of the disclosure an actuator for a parking brake includes a motor generating power; a reduction gear portion configured to transmit the power of the motor to a parking portion implementing a parking braking of a vehicle; a housing in which the motor and the reduction gear portion are accommodated; a housing cover for closing the housing; and a locking portion configured to limit rotation of the reduction gear portion; wherein the locking portion is configured to a locking member that is provided to be movable in an axial direction of the reduction gear portion and is close contact with or spaced apart from the reduction gear portion, an elastic member elastically supporting the locking member toward the reduction gear portion, an electromagnet member configured to separate the locking member from the reduction gear portion by generating an electromagnetic force when the power is applied.

公开(公告)号：US12157447B2

公开(公告)日：2024-12-03

申请号：US17636550

申请日：2020-08-12

Applicant: HL MANDO CORPORATION

Inventor： Joon-kyu Song

IPC: B60T13/74 ,  F16D65/18 ,  F16D121/24 ,  F16D125/50 ,  F16D125/52

Abstract: Disclosed herein an actuator for a brake device includes a housing including a motor accommodating portion configured to accommodate a motor, and a gear accommodating portion configured to accommodate a reduction device; a power connection unit connected to the motor; and the reduction device connected to the power connection unit; wherein the reduction device includes a first reduction gear unit connected to the power connection unit and a second reduction gear unit connected to the first reduction gear unit, and the first reduction gear unit is provided as a bevel gear assembly.