Seat belt for vehicle

Patent metadata

Field	Value
Publication number	US-9776596-B2
Application number	US-201514873001-A
Country	US
Kind code	B2
Filing date	Oct 1, 2015
Priority date	Dec 5, 2014
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

A seat belt for a vehicle comprises a first tongue coupled to a first webbing, the first webbing configured to cover portions of a shoulder, a chest, and an abdomen of a passenger; a first buckle coupled to the first tongue; a second tongue coupled to a second webbing, the second webbing configured to cover portions of the abdomen of the passenger; a second buckle coupled to the second tongue; and an actuator configured to upwardly pull the first tongue and the first buckle, wherein the first buckle is coupled to the second buckle; and upon a collision of the vehicle, the actuator operates to separate the first buckle from the second buckle, and the first webbing moves upward, restricting a movement of an upper body of the passenger.

First claim

What is claimed is:

1. A seat belt for a vehicle, comprising:
a first tongue coupled to a first webbing, the first webbing configured to cover portions of a shoulder, a chest, and an abdomen of a passenger;
a first buckle coupled to the first tongue;
a second tongue coupled to a second webbing, the second webbing configured to cover portions of the abdomen of the passenger;
a second buckle coupled to the second tongue; and
an actuator configured to upwardly pull the first tongue and the first buckle,
wherein the first buckle is coupled to the second buckle; and
upon a collision of the vehicle, the actuator operates to separate the coupling between the first buckle and the second buckle; and the first webbing moves upward, configured to restrict a movement of an upper body of the passenger.

2. The seat belt of claim 1 , wherein the first tongue and the first buckle are coupled to the second tongue and the second buckle by a molding pin disposed between the first buckle and the second buckle, and when a sufficient force is applied, the molding pin breaks, separating the first tongue and the first buckle from the second tongue and the second buckle.

3. The seat belt of claim 1 , wherein the first buckle is connected to a strap extending from a piston rod of the actuator, such that the first tongue and the first buckle are pulled by the strap when the actuator operates.

4. The seat belt of claim 1 , wherein the second buckle comprises a push button mounted therein, the push button configured to release the first tongue and the second tongue when the push button is pushed.

5. The seat belt of claim 4 , further comprising a first locking lever configured to couple to the first tongue and a second locking lever configured to couple to the second tongue, wherein the push button is configured to release the tongues from the locking levers when the push button is pushed.

6. The seat belt of claim 1 , wherein the first webbing is configured to extend from a retractor through a D-ring and the first tongue to a lower anchor disposed on the same side of the vehicle as the retractor.

7. The seat belt of claim 6 , wherein the second webbing is configured to extend from the lower anchor to the second tongue.

8. The seat belt of claim 1 , wherein the actuator comprises a pneumatic actuator that expands rapidly upon a collision signal.

Assignees

• Hyundai Motor Co Ltd

Inventors

• Jung Chang Bin

Classifications

• B60R22/195 Primary

  with means to tension the belt in an emergency, {e.g. means of the through-anchor or splitted reel type}(electrical circuits for triggering safety arrangements {B60R21/01}) · CPC title

• B60R22/26

  secured to the seat · CPC title

• A44B11/2549

  Fastening of other buckle elements to the main buckle (buckles with several tongues released by the same mechanism A44B11/2507 - A44B11/2542) · CPC title

• B60R22/1955 Primary

  Linear actuators · CPC title

• B60R22/12

  Construction of belts or harnesses (B60R21/18 takes precedence {; woven fabrics for safety belts D03D1/0005}) · CPC title