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US 2012/0234640 A1Published application
Electric parking brake system
AssigneeMando Corporation
InventorsYu Don Jung, Chang Bok Ko
Life of this patent
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AssigneeMando Corporation
InventorsYu Don Jung, Chang Bok Ko
Estimating the term…
Disclosed is a motor driven type electric parking brake system. The parking brake system includes a drum that is rotated along with a wheel, first and second brake shoes installed in the drum to apply brake force to the drum, an operating lever that supports the two brake shoes and pushes the two brake shoes against an inner surface of the drum when a pivoting lever is pulled, a motor to generate drive power to drive the pivoting lever, a cycloid speed reducer connected to a rotating shaft of the motor to amplify the drive power, a spindle member rotatably connected to the speed reducer and having a male screw portion, and a nut member having a female screw portion reciprocally screwed to the male screw portion. The nut member is moved in a longitudinal direction of the spindle member and supports an end of the pivoting lever.
An electric parking brake system comprising a drum (1) that is rotated along with a vehicle wheel, first and second brake shoes (2 and 3) installed in both sides of the drum to apply brake force to the drum, and an operating lever (5) that supports the two brake shoes and pushes the two brake shoes against an inner surface of the drum when a pivoting lever (8) is pulled, the system comprising:
Dependencies are inferred from the claim text.