Sliding-door drive unit for a vehicle
AssigneesHyundai Motor Company, Kia Corporation, Pyeong Hwa Automotive Co., Ltd.
InventorsHyung-In Yun, So-Yeon Park, Jong-Han Woo, Ki-Hwan Jeong, Soo-Chul Lee, Moon-Gyu Choi, Seong-Tae Hong
Life of this patent
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Abstract
A sliding-door drive unit for a vehicle is capable of transferring or blocking drive power required to pull or push a cable to open or close a sliding door. The sliding-door drive unit includes a worm wheel rotatable by a drive motor, a stationary disc coupled to an output shaft, and a movable disc rotatably installed between the worm wheel and the stationary disc along an axial direction of the output shaft. The movable disc is engaged with the worm wheel and is selectively engaged with the stationary disc.
Claims16
A sliding-door drive unit for a vehicle, the sliding-door drive unit comprising:
- a worm wheel rotatable by a drive motor;
- a stationary disc connected to an output shaft of the sliding-door drive unit;
- and
- a movable disc rotatably installed between the worm wheel and the stationary disc along an axial direction of the output shaft,
- wherein the movable disc is engaged with the worm wheel and selectively engaged with the stationary disc;
- wherein engagement protrusions are formed on a surface of the movable disc,
- wherein engagement grooves in which the engagement protrusions are accommodated are formed in a surface of the stationary disc,
- wherein the surfaces of the movable disc and the stationary disc face each other,
- wherein the engagement grooves are formed to be spaced a predetermined angle apart in a circumferential direction of the stationary disc,
- wherein the engagement protrusions are formed in such a manner as to be smaller in number than the number of engagement grooves, and
- wherein an angle by which the engagement protrusions are spaced apart is set to a multiple of an angle by which the engagement grooves are spaced apart.
A sliding-door drive unit for a vehicle, the sliding-door drive unit comprising:
- a housing;
- a drive motor provided in the housing to rotate a drum wound with cables;
- a worm wheel coupled with a worm shaft of the drive motor;
- a stationary disc coupled to the drum;
- a movable disc rotatably installed between the worm wheel and the stationary disc;
- and
- a spring to elastically support the movable disc to be disengaged from the stationary disc,
- wherein the movable disc is configured to be engaged with the worm wheel and selectively engaged with the stationary disc to rotate the drum-;
- wherein engagement protrusions are formed on a surface of the movable disc,
- wherein engagement grooves in which the engagement protrusions are accommodated are formed in a surface of the stationary disc,
- wherein the surfaces of the movable disc and the stationary disc face each other,
- wherein the engagement grooves are formed to be spaced a predetermined angle apart in a circumferential direction of the stationary disc,
- wherein the engagement protrusions are formed in such a manner as to be smaller in number than the number of engagement grooves, and
- wherein an angle by which the engagement protrusions are spaced apart is set to a multiple of an angle by which engagement grooves are spaced apart.
Dependencies are inferred from the claim text.