US-12617316-B2 - Get on and off guide device of seat for vehicle

Abstract

In an embodiment of a vehicle seat device for assistance in entering and exiting a vehicle, the vehicle seat device includes an integrated assistance device mounted on a seat swivel device and configured to perform a seat relaxation operation and a seat assistance operation of allowing a passenger to enter and exit the vehicle, thereby not only implementing a relaxation posture of a seat, but also allowing the passenger to conveniently enter and exit the vehicle through a seat swivel operation and a seat operation for assistance in entering and exiting the vehicle.

Inventors

• Mu Young KIM
• Suk Won HONG
• Hee Dong Choi
• Seok Ju Gim

Assignees

• HYUNDAI MOTOR COMPANY
• KIA CORPORATION

Dates

Publication Date

20260505

Application Date

20240318

Priority Date

20231110

Claims (19)

1. 1 . A vehicle seat device for assistance in entering and exiting a vehicle, the vehicle seat device comprising: a first side bracket and a second side bracket respectively mounted on opposite sides of a rotating plate of a seat swivel device; a first guidance link having a lower end coupled to a front portion of the first side bracket to be movable forwards and rearwards; a drive link having a first hinge coupling end hinged to a rear inner surface of the first side bracket by a hinge pin; a driven link having a second hinge coupling end hinged to a rear outer surface of the first side bracket by the hinge pin; a tilting link having a front end hinged to an upper end of the first guidance link and a rear end connected to the driven link; a guidance plate having a guidance hole including a sector gear protruding from one inner surface thereof, the guidance plate being fixedly mounted at the rear outer surface of the first side bracket; and a drive device connected to the drive link, the guidance plate, and the driven link and configured to rotate the drive link, the driven link, and the tilting link forwards or rearwards about the hinge pin.
2. 2 . The device of claim 1 , wherein the front portion of the first side bracket has a first slide hole configured to allow a first guidance pin mounted on a lower end of the first guidance link to be slidably and rotatably coupled thereto, and wherein the first guidance pin is movable forwards and rearwards in the first slide hole.
3. 3 . The device of claim 1 , wherein the first hinge coupling end is at a front end of the drive link, and the second hinge coupling end is at a front end of the driven link.
4. 4 . The device of claim 1 , wherein the first hinge coupling end of the drive link and the second hinge coupling end of the driven link are hinged to each other by the hinge pin with the first side bracket interposed therebetween.
5. 5 . The device of claim 1 , wherein the driven link has a seat cushion connection end formed at a rear end thereof and coupled to a connection pipe mounted on a rear end of a seat cushion frame.
6. 6 . The device of claim 1 , wherein the driven link has a tilting link connection end at an upper end thereof and configured to allow a rear end of the tilting link to be mounted thereon by a fixing pin.
7. 7 . The device of claim 1 , wherein the drive device comprises: a motor mounted on an inner surface of the drive link; a drive shaft extending from an output portion of the motor, wherein the drive shaft passes through the guidance hole of the guidance plate and is rotatably coupled to the driven link; and a pinion mounted on the drive shaft and engaged with the sector gear of the guidance plate.
8. 8 . The device of claim 7 , wherein the drive link has a guidance hole formed to allow the drive shaft to pass therethrough.
9. 9 . The device of claim 7 , wherein the driven link has a connection hole configured to allow an end of the drive shaft to be rotatably inserted thereinto.
10. 10 . The device of claim 1 , further comprising a second guidance link having a lower part coupled to a front portion of the second side bracket, wherein the lower part is coupled thereto to be movable forwards and rearwards, and an upper part hinged to a side of a seat cushion frame.
11. 11 . The device of claim 10 , wherein the front portion of the second side bracket has a second slide hole, wherein the second guidance link has a second guidance pin mounted on a lower end of the second guidance link, wherein the second guidance pin is slidably and rotatably coupled to the second slide hole, and wherein the second guidance pin is movable forwards and rearwards in the second slide hole.
12. 12 . The device of claim 1 , wherein each of the first side bracket and the second side bracket is fixedly mounted on a corresponding one of opposite sides of a base frame mounted on the rotating plate of the seat swivel device.
13. 13 . The device of claim 12 , wherein the seat swivel device is mounted on a seat rail to be movable forwards and rearwards along the seat rail.
14. 14 . A vehicle seat device for assistance in entering and exiting a vehicle, the vehicle seat device comprising: a first side bracket and a second side bracket respectively mounted on opposite sides of a rotating plate of a seat swivel device; a first guidance link having a lower end coupled to a front portion of the first side bracket to be movable forwards and rearwards; a drive link having a first hinge coupling end hinged to a first position of a rear inner surface of the first side bracket by a hinge pin; a driven link having a second hinge coupling end hinged to a second position of a rear outer surface of the first side bracket by the hinge pin; a tilting link having a front end hinged to an upper end of the first guidance link and a rear end connected to the driven link; a guidance plate having a guidance hole including a sector gear protruding from one inner surface thereof, the guidance plate being fixedly mounted at the second position of the rear outer surface of the first side bracket; and a drive device connected to the drive link, the guidance plate, and the driven link and configured to rotate the drive link, the driven link, and the tilting link forwards or rearwards about the hinge pin, wherein the first side bracket has a first slide hole therethrough at a third position of a front portion thereof and configured to allow a first guidance pin mounted on a lower end of the first guidance link to be slidably and rotatably coupled thereto, wherein the first guidance pin is movable forwards and rearwards in the first slide hole, wherein the first hinge coupling end is at a front end of the drive link, and the second hinge coupling end is at a front end of the driven link, wherein the first hinge coupling end of the drive link and the second hinge coupling end of the driven link are hinged to each other by the hinge pin with the first side bracket interposed therebetween, wherein the driven link has a seat cushion connection end formed at a rear end thereof and coupled to a connection pipe mounted on a rear end of a seat cushion frame, wherein the driven link has a tilting link connection end at an upper end thereof and configured to allow a rear end of the tilting link to be mounted thereon by a fixing pin.
15. 15 . The device of claim 14 , wherein the drive device comprises: a motor mounted on an inner surface of the drive link; a drive shaft extending from an output portion of the motor, wherein the drive shaft passes through the guidance hole of the guidance plate and is rotatably coupled to the driven link; and a pinion mounted on the drive shaft and engaged with the sector gear of the guidance plate.
16. 16 . The device of claim 15 , wherein the drive link has a guidance hole formed to allow the drive shaft to pass therethrough.
17. 17 . The device of claim 15 , wherein the driven link has a connection hole configured to allow an end of the drive shaft to be rotatably inserted thereinto.
18. 18 . The device of claim 14 , further comprising a second guidance link having a lower part coupled to a fourth position of a front portion of the second side bracket, wherein the lower part is coupled thereto to be movable forwards and rearwards, and an upper part hinged to a side of the seat cushion frame, wherein the second side bracket has a second slide hole therethrough at a fifth position of a front portion thereof, wherein the second guidance link has a second guidance pin mounted on a lower end thereof being slidably and rotatably coupled to the second slide hole, wherein the second guidance pin is movable forwards and rearwards in the second slide hole, wherein each of the first side bracket and the second side bracket is fixedly mounted on a corresponding one of opposite sides of a base frame mounted on the rotating plate of the seat swivel device, and wherein the seat swivel device is mounted on a seat rail to be movable forwards and rearwards along the seat rail.
19. 19 . A vehicle seat device for assistance in entering and exiting a vehicle, the vehicle seat device comprising: a first side bracket and a second side bracket respectively mounted on opposite sides of a rotating plate of a seat swivel device; a first guidance link having a lower end coupled to a front portion of the first side bracket to be movable forwards and rearwards; a drive link having a first hinge coupling end hinged to a first position of a rear inner surface of the first side bracket by a hinge pin; a driven link having a second hinge coupling end hinged to a second position of a rear outer surface of the first side bracket by the hinge pin; a tilting link having a front end hinged to an upper end of the first guidance link and a rear end connected to the driven link; a guidance plate having a guidance hole including a sector gear protruding from one inner surface thereof, the guidance plate being fixedly mounted at the second position of the rear outer surface of the first side bracket; a drive device connected to the drive link, the guidance plate, and the driven link and configured to rotate the drive link, the driven link, and the tilting link forwards or rearwards about the hinge pin, wherein the first side bracket has a first slide hole therethrough at a third position of a front portion thereof and configured to allow a first guidance pin mounted on a lower end of the first guidance link to be slidably and rotatably coupled thereto, wherein the first guidance pin is movable forwards and rearwards in the first slide hole, wherein the first hinge coupling end is at a front end of the drive link, and the second hinge coupling end is at a front end of the driven link, wherein the first hinge coupling end of the drive link and the second hinge coupling end of the driven link are hinged to each other by the hinge pin with the first side bracket interposed therebetween, wherein the driven link has a seat cushion connection end formed at a rear end thereof and coupled to a connection pipe mounted on a rear end of a seat cushion frame, wherein the driven link has a tilting link connection end at an upper end thereof and configured to allow a rear end of the tilting link to be mounted thereon by a fixing pin; a motor mounted on an inner surface of the drive link; a drive shaft extending from an output portion of the motor, wherein the drive shaft passes through the guidance hole of the guidance plate and is rotatably coupled to the driven link; a pinion mounted on the drive shaft and engaged with the sector gear of the guidance plate, wherein the drive link has a guidance hole formed to allow the drive shaft to pass therethrough, wherein the driven link has a connection hole configured to allow an end of the drive shaft to be rotatably inserted thereinto; and a second guidance link having a lower part coupled to a fourth position of a front portion of the second side bracket, wherein the lower part is coupled thereto to be movable forwards and rearwards, and an upper part hinged to a side of the seat cushion frame, wherein the second side bracket has a second slide hole therethrough at a fifth position of a front portion thereof, wherein the second guidance link has a second guidance pin mounted on a lower end thereof being slidably and rotatably coupled to the second slide hole, wherein the second guidance pin is movable forwards and rearwards in the second slide hole, wherein each of the first side bracket and the second side bracket is fixedly mounted on a corresponding one of opposite sides of a base frame mounted on the rotating plate of the seat swivel device, and wherein the seat swivel device is mounted on a seat rail to be movable forwards and rearwards along the seat rail.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS This application claims the benefit of Korean Patent Application No. 10-2023-0154948, filed on Nov. 10, 2023, which application is hereby incorporated herein by reference. TECHNICAL FIELD The present disclosure relates to a vehicle seat device. BACKGROUND In general, a vehicle seat includes basic components such as a seat cushion configured to allow the lower body of a passenger to be seated thereon, a seatback configured to support the upper body of a passenger, and a headrest configured to support the neck and the head of a passenger. In addition to the basic components, various seat position adjustment devices and convenience devices are installed inside and outside the vehicle seat. Further, it is required to provide a mechanism mounted on a vehicle seat and configured to implement a relaxation posture in an autonomous vehicle and an electric vehicle. For example, when an autonomous vehicle travels a long distance, the mechanism enables a driver to comfortably rest or sleep. Additionally, when it takes a long time to charge an electric vehicle, the mechanism enables a driver to comfortably rest during charging of the electric vehicle. In addition, a mechanism capable of performing assistance in entering and exiting the vehicle is installed on a vehicle seat to allow the elderly and the disabled to conveniently enter and exit the vehicle. However, as described above, it is required to separately install, on the vehicle seat, a mechanism component adopted to implement a relaxation posture and a mechanism component adopted to assist in entering and exiting the vehicle. Accordingly, the internal structure of the vehicle seat becomes very complicated, and weight and the number of parts of the vehicle are increased, which leads to deterioration in seat assembly performance. The above information disclosed in this Background section is only for enhancement of understanding of the background of the present disclosure, and therefore it may contain information that does not form the prior art that is already publicly known or publicly used. SUMMARY The present disclosure relates to a vehicle seat device for assistance in entering and exiting a vehicle. More particularly, the present disclosure relates to a vehicle seat device configured not only to perform a relaxation operation of a seat, but also to allow a passenger to conveniently enter and exit the vehicle through a seat swivel operation and a seat operation for assistance in entering and exiting the vehicle. Embodiments of the present disclosure can solve the above-described problems associated with the prior art, and it can be an advantage of an embodiment of the present disclosure to provide a vehicle seat device for assistance in entering and exiting a vehicle, the vehicle seat device including an integrated assistance device mounted on a seat swivel device and configured to perform a seat relaxation operation and a seat assistance operation of allowing a passenger to enter and exit the vehicle, thereby not only implementing a relaxation posture of a seat, but also allowing the passenger to conveniently enter and exit the vehicle through a seat swivel operation and a seat operation for assistance in entering and exiting the vehicle. In an embodiment, a vehicle seat device for assistance in entering and exiting a vehicle includes a first side bracket and a second side bracket respectively mounted on opposite sides of a rotating plate of a seat swivel device, a first guidance link having a lower end coupled to a front portion of the first side bracket to be movable forwards and rearwards, a drive link having a first hinge coupling end hinged to a position of a rear inner surface of the first side bracket by a hinge pin, a driven link having a second hinge coupling end hinged to a position of a rear outer surface of the first side bracket by the hinge pin, a tilting link having a front end hinged to an upper end of the first guidance link and a rear end connected to the driven link, a guidance plate having a guidance hole formed to have a sector gear on one inner surface thereof, the guidance plate being fixedly mounted at the position of the rear outer surface of the first side bracket, and a drive device connected to the drive link, the guidance plate, and the driven link to rotate the drive link, the driven link, and the tilting link forwards or rearwards around the hinge pin. In an embodiment, the first side bracket may have a first slide hole formed at a selected, set, preset, or predetermined position of a front portion thereof and configured to allow a first guidance pin mounted on a lower end of the first guidance link to be coupled thereto, wherein the first guidance pin may be movable forwards and rearwards in the first slide hole. In an embodiment, the first hinge coupling end may be formed at a front end of the drive link, the second hinge coupling end may be formed at a front end of the driven link, and t