Door hinge device for vehicle

Patent metadata

Field	Value
Publication number	US-12188285-B2
Application number	US-202318381013-A
Country	US
Kind code	B2
Filing date	Oct 17, 2023
Priority date	Jan 20, 2023
Publication date	Jan 7, 2025
Grant date	Jan 7, 2025

Abstract

A vehicle door hinge device may include a case set diagonally provided toward an outside of a vehicle body at a location of the vehicle body corresponding to an end portion of a door, and including a slide case slidable with respect to a main case, a sliding arm provided on the slide case, and pivotally connected to a door hinge bracket fixed to the end portion of the door in an outside of the slide case, and a driving unit including first and second screws that are motor-driven and disposed in an interior of the main case in a longitudinal direction of the main case to be coupled to the slide case and the sliding arm, respectively, and configured to simultaneously slide the slide case and the sliding arm with respect to the main case.

First claim

What is claimed is:

1. A vehicle door hinge apparatus, comprising:
a case set diagonally provided toward an outside of a vehicle body at a location of the vehicle body corresponding to an end portion of a door, and including a main case and a slide case slidable with respect to the main case;
a sliding arm provided on the slide case, wherein a first end portion of the sliding arm is pivotally connected to a door hinge bracket fixed to the end portion of the door in an outside of the slide case; and
a driving unit including first and second screws that are motor-driven and disposed in an interior of the main case in a longitudinal direction of the main case to be coupled to the slide case and the sliding arm, respectively, and configured to simultaneously slide the slide case and the sliding arm with respect to the main case,
wherein the main case includes a cover on which a motor of the driving unit is fixed and to which end portions of the first and second screws are rotatably coupled, and
wherein the slide case is disposed to be slidable with respect to the interior of the main case, and includes a slot in an external surface of the slide case,
wherein a second end portion of the sliding arm is slidably engaged to the slot to guide sliding movement of the sliding arm in a longitudinal direction of the slide case.

2. The door hinge apparatus of claim 1 ,
wherein the door includes a front door or a rear door, and
wherein the end portion of the door is a frontal end portion of the front door or a rear end portion of the rear door.

3. The door hinge apparatus of claim 1 ,
wherein the slot includes an upper slot in an upper portion of the slide case and a lower guide slot in a lower portion of the slide case, and
wherein the second end portion of the sliding arm is slidably engaged to the upper slot and the lower slot, to guide the sliding movement of the sliding arm in the longitudinal direction of the slide case.

4. The door hinge apparatus of claim 1 , wherein the sliding arm is provided to be slidable along upper and lower guide slots formed in the slide case.

5. The door hinge apparatus of claim 4 , wherein the sliding arm includes:
an upper arm disposed in the outside of the slide case and configured to slide along the upper guide slot by an upper slider engaged in the upper guide slot;
a lower arm disposed in the outside of the slide case and configured to slide along the lower guide slot by a lower slider engaged in the lower guide slot; and
a connection plate that connects the upper and lower sliders in an interior of the slide case.

6. The door hinge apparatus of claim 4 , wherein the door hinge bracket is fixed to the end portion of the door, and hinged to frontal end portions of an upper arm and a lower arm through a hinge shaft.

7. The door hinge apparatus of claim 1 , wherein the driving unit is configured to slide the slide case and the sliding arm at different speeds with respect to the main case.

8. The door hinge apparatus of claim 1 , wherein the slide case and the sliding arm are engaged on the first and second screws through first and second screw housings, respectively.

9. The door hinge apparatus of claim 8 , wherein the slide case is engaged on the first screw through the first screw housing connected to the slide case through a first bracket.

10. The door hinge apparatus of claim 8 , wherein the sliding arm is engaged on the second screw through the second screw housing connected to the sliding arm through a second bracket.

11. The door hinge apparatus of claim 1 , wherein the driving unit includes:
the motor provided on the cover fixed to an internal side of the main case;
a motor gear connected on a motor shaft of the motor to output a torque of the motor;
the first screw disposed in the interior of the main case, including an end portion rotatably provided on the cover, engaged with a first screw housing formed on the slide case, and configured to rotate in a decreased speed by receiving the torque of the motor through a first drive gear engaged with the motor gear; and
the second screw disposed in the interior of the main case, including an end portion rotatably provided on the cover, engaged with a second screw housing formed on the sliding arm, and configured to rotate in an increased speed by receiving the torque of the motor through a second drive gear engaged with the motor gear.

12. The door hinge apparatus of claim 11 ,
wherein the end portion of the first screw is rotatably provided on the cover through a first bearing, and
wherein the end portion of the second screw is rotatably provided on the cover through a second bearing.

13. The door hinge apparatus of claim 11 , wherein the first drive gear is fixed to the first screw, and the second drive gear is fixed to the second screw.

14. The door hinge apparatus of claim 11 , wherein the first drive gear includes a diameter formed greater than a diameter of the motor gear, and the second drive gear includes a diameter formed smaller than a diameter of the motor gear.

15. A vehicle door hinge apparatus, comprising:
a case set provided toward an outside of a vehicle body at a location of the vehicle body corresponding to an end portion of a door, and including a main case and a slide case telescopically coupled to the main case;
a sliding arm provided on the slide case, wherein a first end portion of the sliding arm is pivotally connected to the end portion of the door; and
a driving unit mounted on the main case and including:
a first actuator coupled to the slide case;
a second actuator coupled to the sliding arm; and
a driving device engaged to the first actuator and the second actuator to synchronously operate the first actuator and the second actuator to simultaneously slide the slide case and the sliding arm with respect to the main case,

wherein the first actuator includes:
a first screw, a first end portion of which is rotatably coupled to the main case and a second end portion of which is engaged to the slide case; and
a first drive gear connected to the first screw,

wherein the second actuator includes:
a second screw, a first end portion of which is rotatably coupled to the main case and a second end portion of which is engaged to the slide arm; and
a second drive gear connected to the second screw, and

wherein the driving device includes:
a motor; and
a motor gear gear-engaged to the first drive gear and the second drive gear,

wherein the first drive gear includes a diameter greater than a diameter of the motor gear, and the second drive gear includes a diameter smaller than a diameter of the motor gear.

16. The door hinge apparatus of claim 15 , wherein the slide case is engaged on the first screw through a first screw housing connected to the slide case and wherein the sliding arm is engaged on the second screw through a second screw housing.

Assignees

• Hyundai Motor Co Ltd
• Kia Corp

Inventors

• Lee Jaeseung
• Yim Chungsik

Classifications

• B60J5/048 Primary

  characterised by the material · CPC title

• E05Y2201/10

  Covers; Housings · CPC title

• E05D3/02

  with one pin · CPC title

• E05Y2900/531

  Doors · CPC title

• E05F15/652

  operated by screw-and-nut mechanisms · CPC title