Safety belt device for vehicle

Patent metadata

Field	Value
Publication number	US-10604106-B2
Application number	US-201816156119-A
Country	US
Kind code	B2
Filing date	Oct 10, 2018
Priority date	May 11, 2018
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A safety belt device configured for a vehicle may include a belt driving device disposed on a seat, connected to a waist belt in a state in which an occupant wears a seat belt, and moving the waist belt in a predetermined direction to allow the waist belt to wrap around the occupant's waist when the waist belt is positioned at a rear side and to allow the waist belt to be caught between an ankle and the waist of the occupant when the waist belt is moved forward thereof; and a controller receiving a signal generated according to an occurrence of a vehicle collision and controlling the belt driving device upon receiving the impact signal to allow the waist belt to be moved from the rear to the front.

First claim

What is claimed is:

1. A safety belt device configured for a vehicle, the safety belt device comprising:
a belt driving device disposed on a seat, connected to a waist belt in a state in which an occupant wears a seat belt, and moving the waist belt in a first predetermined direction to allow the waist belt to wrap around the occupant's waist when the waist belt is disposed at a rear side thereof and to allow the waist belt to be caught between an ankle and the waist of the occupant when the waist belt is moved forward thereof; and
a controller configured for receiving a signal generated according to an occurrence of a vehicle collision and controlling the belt driving device upon receiving the signal to allow the waist belt to be moved from the rear to the front thereof.

2. The safety belt device configured for the vehicle of claim 1 , wherein the belt driving device includes a first moving mechanism and a second moving mechanism provided on a first side and a second side of the seat, respectively, and configured to allow the waist belt to be connected thereto and configured to allow the waist belt to be moved in the first predetermined direction according to a movement thereof in the predetermined direction.

3. The safety belt device configured for the vehicle of claim 2 , wherein the first moving mechanism includes:
a first front and rear moving device slidably disposed on a first guide portion extending in the first predetermined direction along a seat rail; and
a first up-down moving device disposed to be movable in a second predetermined direction thereof on the first front and rear moving device, and
wherein the waist belt is connected to the first up-down moving device.

4. The safety belt device configured for the vehicle of claim 3 ,
wherein the first front and rear moving device includes a first sliding portion sliding on the first guide portion and a first extension portion extending upwards from the first sliding portion, and
wherein the first up-down moving device is moveably disposed on the first extension portion.

5. The safety belt device configured for the vehicle of claim 4 ,
wherein the first guide portion and the first sliding portion are screw-coupled to each other, and
wherein the first guide portion receives a power from a first driving motor provided on the seat rail or a bottom surface of the vehicle and is then rotated to allow the first sliding portion to be moved along the first guide portion.

6. The safety belt device configured for the vehicle of claim 4 , wherein the first up-down moving device includes:
a first webbing moving portion disposed to be movable in the second predetermined direction thereof along the first extension portion; and
a first webbing rotation portion provided with a buckle portion, which is moved with the first webbing moving portion, and configured to allow the buckle portion to be rotated, and
wherein the waist belt passes through and is connected to the buckle portion.

7. The safety belt device configured for the vehicle of claim 6 ,
wherein the first extension portion has a first gear groove formed thereon and extending in a longitudinal direction thereof, and
wherein the first webbing moving portion is provided with a first up-down moving motor which is engaged with the first gear groove to be moved along the first gear groove in a rotating operation of the first up-down moving motor.

8. The safety belt device configured for the vehicle of claim 6 , wherein the first webbing rotation portion includes:
a first rotary motor selectively movable along with the first webbing moving portion; and
a first rotary plate around which the buckle portion is coupled, and
wherein the first rotary motor passes through and is coupled to a center of the first rotary plate.

9. The safety belt device configured for the vehicle of claim 6 , further including:
a first housing formed to cover the first webbing moving portion and the first webbing rotation portion,
wherein the first webbing moving portion and the first webbing rotation portion are coupled to the first housing to allow the first webbing rotation portion to be moved with the first webbing moving portion.

10. The safety belt device configured for the vehicle of claim 2 ,
wherein the second moving mechanism includes:
a second front and rear moving device slidably disposed on a second guide portion extending in the first predetermined direction along a seat rail; and
a second up-down moving device disposed to be moveable in the second predetermined direction thereof on the second front and rear moving device, and

wherein the second moving mechanism further includes:
a webbing guide which is detachably disposed on a tongue provided on the waist belt and is configured to be detached from the tongue when the second up-down moving device is moved and coupled, and
wherein the waist belt passes through and is connected to the webbing guide.

11. The safety belt device configured for the vehicle of claim 10 ,
wherein the second front and rear moving device includes a second sliding portion slidable on the second guide portion and a second extension portion extending upwards from the second sliding portion, and
wherein the second up-down moving device is moveably disposed on the second extension portion.

12. The safety belt device configured for the vehicle of claim 11 ,
wherein the second guide portion and the second sliding portion are screw-coupled to each other, and
wherein the second guide portion receives a power from a second driving motor provided on the seat rail or a bottom surface of the vehicle and is then rotated to allow the second sliding portion to be moved along the second guide portion.

13. The safety belt device configured for the vehicle of claim 11 , wherein the second up-down moving device includes:
a second webbing moving portion disposed to be movable in the second predetermined direction thereof along the second extension portion; and
a second webbing rotation portion configured to be moved with the second webbing moving portion and to be coupled to the webbing guide when moved upward.

14. The safety belt device configured for the vehicle of claim 13 ,
wherein the second extension portion has a second gear groove formed thereon and extending in a longitudinal direction thereof, and
wherein the second webbing moving portion is provided with a second up-down moving motor which is engaged with the second gear groove to be moved along the second gear groove in a rotating operation of the second up-down moving motor.

15. The safety belt device configured for the vehicle of claim 13 ,
wherein the second webbing rotation portion includes:
a second rotary motor configured to be moved along with the second webbing moving portion; and
a second rotary plate on which a guide tongue inserted into and coupled to the webbing guide is formed, and

wherein the second rotary motor passes through and is coupled to a center of the second rotary plate.

16. The safety belt device configured for the vehicle of claim 15 ,
wherein a hook portion engageably connected to the webbing guide is rotatably disposed on the tongue of the waist belt, an insertion hole which into the guide tongue is inserted and an engaging recess to which the hook portion is engageably connected are formed on the webbing guide, and the hook portion includes a hook bar and a guide bar, and
wherein the hook bar is rotatably disposed on the tongue and the guide bar extends from the hook bar to be placed in the insertion hole when the hook bar is inserted into the engaging reces

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp

Inventors

• Kim Dae Woon

Classifications

• B60R22/26

  secured to the seat · CPC title

• B60R22/001 Primary

  Knee, leg or head belts · CPC title

• B60R22/19

  with means for reducing belt tension during use under normal conditions {(included in the retractor B60R22/44)} · CPC title

• B60R22/48

  Control systems, alarms, or interlock systems, for the correct application of the belt or harness · CPC title

• B60R2022/4808

  Sensing means arrangements therefor · CPC title