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US 10,378,603 B2Granted
Electronic parking brake apparatus
AssigneeHyundai Mobis Co., Ltd.
InventorMoo Jin Choi
Life of this patent
Estimating the term…
Abstract
An EPB (Electronic Parking Brake) apparatus may include: a housing unit; a motor unit mounted in the housing unit; a worm wheel gear unit engaged and rotated with the motor unit; a piston unit connected with a brake shoe; and a nut unit mounted on the worm wheel gear unit, coupled to the piston unit, and moved by the rotation of the worm wheel gear unit so as to pressurize the piston unit. The housing unit is deformed by the movement of the piston unit and restricts the operation of the motor unit.
Claims15
An electronic parking brake apparatus, comprising:
- a housing unit;
- a motor unit, wherein the motor unit is mounted in the housing unit;
- a worm wheel gear unit, wherein the worm wheel gear unit is engaged and rotated with the motor unit;
- a brake shoe;
- a piston unit, wherein the piston unit is connected with the brake shoe;
- and
- a nut unit, wherein the nut unit is mounted on the worm wheel gear unit, coupled to the piston unit, and moved by rotation of the worm wheel gear unit to pressurize the piston unit,
- wherein the nut unit further comprises:
- a plurality of spring parts;
- a pair of plate parts, wherein the plurality of spring parts are disposed in between the pair of plate parts;
- a nut support part, wherein the nut support part supports one of the pair of plate parts;
- and
- a nut coupling part, wherein the nut coupling part supports the other one of the pair of plate parts, and is screwed to the worm wheel gear unit to move in an axial direction of the worm wheel gear unit.
10 more elements
Dependencies are inferred from the claim text.