Driving apparatus for swing door
AssigneesHyundai Motor Company, Kia Corporation
InventorSeung Young Park
Life of this patent
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Abstract
An embodiment driving apparatus for a swing door includes a drive shaft that is linearly movable, a drive casing rotatably disposed around the drive shaft, and a conversion mechanism configured to convert a linear movement of the drive shaft into a rotational movement of the drive casing, wherein the conversion mechanism includes a first spiral groove provided in an exterior surface of the drive shaft, a second spiral groove provided in an interior surface of the drive casing, and a plurality of balls interposed between the first spiral groove and the second spiral groove.
Claims20
A driving apparatus for a swing door, the driving apparatus comprising:
- a drive shaft that is linearly movable;
- a drive casing rotatably disposed around the drive shaft;
- and
- a conversion mechanism configured to convert a linear movement of the drive shaft into a rotational movement of the drive casing, wherein the conversion mechanism comprises a first spiral groove provided in an exterior surface of the drive shaft, a second spiral groove provided in an interior surface of the drive casing, and a plurality of balls interposed between the first spiral groove and the second spiral groove;
- a sleeve fixed to an exterior surface of the drive casing, wherein the drive casing is connected to the swing door through the sleeve;
- and
- a suppressor received in the sleeve and a spring configured to cause the suppressor to be biased downwardly, wherein the suppressor is configured to suppress an upward movement of the drive casing by a biasing force of the spring.
A driving apparatus for a swing door, the driving apparatus comprising:
- a drive shaft that is linearly movable;
- a linear actuator coupled to the drive shaft to cause the drive shaft to move linearly;
- a drive casing rotatably disposed around the drive shaft;
- and
- a conversion mechanism configured to convert a linear movement of the drive shaft into a rotational movement of the drive casing, wherein the conversion mechanism comprises a first spiral groove provided in an exterior surface of the drive shaft, a second spiral groove provided in an interior surface of the drive casing, and a plurality of balls interposed between the first spiral groove and the second spiral groove;
- a sleeve fixed to an exterior surface of the drive casing, wherein the drive casing is connected to the swing door through the sleeve;
- and
- a suppressor received in the sleeve and a spring configured to cause the suppressor to be biased downwardly, wherein the suppressor is configured to suppress an upward movement of the drive casing by a biasing force of the spring.
A vehicle comprising:
- a vehicle body;
- a swing door coupled to the vehicle body and configured to cover an aperture in the vehicle body;
- a swing arm having a first end portion mounted on an interior surface of the swing door;
- a driving apparatus, wherein a second end portion of the swing arm is connected to the driving apparatus, and wherein the driving apparatus comprises:
- a drive shaft that is linearly movable;
- a drive casing rotatably disposed around the drive shaft;
- and
- a conversion mechanism configured to convert a linear movement of the drive shaft into a rotational movement of the drive casing, wherein the conversion mechanism comprises a first spiral groove provided in an exterior surface of the drive shaft, a second spiral groove provided in an interior surface of the drive casing, and a plurality of balls interposed between the first spiral groove and the second spiral groove;
- a sleeve fixed to an exterior surface of the drive casing, wherein the drive casing is connected to the swing door through the sleeve;
- and
- a suppressor received in the sleeve and a spring configured to cause the suppressor to be biased downwardly, wherein the suppressor is configured to suppress an upward movement of the drive casing by a biasing force of the spring.
Dependencies are inferred from the claim text.