KR200147501Y1 - A seat belt of an automobile - Google Patents

Abstract

The present invention relates to a seat belt installed in connection with the seat of the car to protect the driver or occupant in a car accident, the first retractor (10) fixed to the vehicle body;

One end is fixed to the first retractor 10 to be retractable, the other end is fixed to a tongue (4) releasably fastened to the knuckle (5) fixed to the vehicle body, the guide pulley fixed to the vehicle body (6) is movably inserted, the close portion of the tongue (5) is formed a plurality of folded portion (21a) that is gradually developed when a tensile force of more than a reference value is applied to the cushioning portion 21 is formed 1 seat belt portion 20; One end is fixed to the tongue (4), the adjacent portion of the tongue (4) is formed a cushioning portion 31 is a plurality of folded portion (31a) that is gradually developed when a tensile force of more than a reference value is applied Second seat belt portion 30; And a second retractor 40 fixed to the vehicle body of the vehicle, the other end of the second seat belt 30 being releasably fixed thereto, and easily detaching the seat belt easily and quickly. In addition, it is possible to completely prevent the secondary pressure, shock or injury caused by the seat belt in the event of a collision of the car can more reliably protect the driver or passengers.

Description

Car Seat Belts

The present invention relates to a seat belt for an automobile, and more particularly, in order to prevent injury to a driver or a passenger due to the compression of the seat belt during an automobile crash, when the excessive tension is applied to the seat belt, the tension and impact force are extended. The present invention relates to an automobile seat belt that can be alleviated.

In general, the front seat and the rear seat are installed in the interior of the vehicle, and each seat is provided with a seat belt called a safety belt (safety belt) to protect the driver or occupant in the event of a collision of the vehicle.

Among these seat belts, the seat belts installed in the front seats are shown in FIG. 1, and the three-point seat belts 1 installed in the front seats S can be elastically pulled out to the retractor 2. It is rolled up. The retractor 2, on which one end of the seat belt 1 is retractably wound, is fixed to a center pillar (B-pillar), for example, of an automobile, and an anchor 3 is attached to the other end of the seat belt 1. ) Is fixed to the vicinity of the retractor (2).

In addition, a tongue 4 is externally movably inserted into the seat belt 1, and such a tongue 4 is releasably detachable to a buckle 5 fixed to, for example, a floor panel on the other side of the seat S. FIG. It is fixed.

On the other hand, the seat belt 1 is movably inserted into the guide pulley 6 fixed to the central pillar (not shown) and can be easily guided and moved.

The guide pulley 6 is formed of, for example, a fixing member 6a that is bolted to the vehicle body and a guide member 6b integrally formed on the fixing member, and the guide member 6b includes a guide groove 6c. It is formed so that the seat belt 1 can be easily taken out or pulled out.

This seat belt 1 also protects them by stopping the withdrawal by the clamping action of the retractor 2 in the event of a collision.

Recently, however, in order to prevent injury to the driver or the occupant due to excessive tension due to the clamping action of the seat belt 1 after the collision of the vehicle, the seat belt 1, that is, the other of the seat belt on which the anchor 3 is formed Near the end there is provided an impact mitigating means 7 called a load limiter.

The impact mitigating means 7 is formed by folding a portion of the seat belt 1 in multiple layers to sew each folded portion 7a and then shielding the case 7b.

Each of the folded portions 7a is applied by the excessive tensile force when the seat belt 1 is clamped after the impact, so that the folded portion 7a is pressed by such excessive tensile force. It has been progressively and sequentially torn apart to alleviate the excessive tension applied to the seat belt (1) to prevent secondary injury of the driver or occupant due to the tension of the seat belt (1).

However, in the case where the other end of the seat belt is provided with a separate impact mitigating means, in the event of an automobile crash, one end of the seat belt 1 is fixed and fixed by the retractor 2 as well as the center portion of the seat belt 1. It is also fixed on the tongue 4 by the tension applied to the seat belt.

At this time, even if the folding belt 7a of the shock absorbing means 7 is developed by applying an additional tensile force to the seat belt 1, only a part of the seat belt 1 supporting the lower part of the driver is alleviated.

Accordingly, there is a problem in that the first part of the seat belt 1 to the tongue 4 is substantially maintained in an expanded state in a state in which a tensile force is actually applied, thereby primarily pressing the upper body of the driver or the occupant.

In addition, the upper body is maintained in the initial state, while only the lower body is relaxed, the body can be moved and shifted forward, thereby causing serious injuries caused by the impact of the instrument panel or dash panel pushed back due to the collision of the car There was this.

Therefore, the present invention has been devised to solve such a problem, and an object of the present invention is to provide a seat belt for an automobile that can effectively and stably support and protect the entire body of a driver or a passenger during an automobile crash.

Another object of the present invention is to provide a seat belt for an automobile that can prevent an additional injury caused by the pressing force of the belt to the driver or the occupant during the collision of the vehicle.

Another object of the present invention is to support the driver's or occupant's upper body and lower body without excessively pressurizing the collision of the car to prevent the upper body or lower body from being injured and injured by the front side of the vehicle. The present invention provides a seat belt for an automobile in which an impact mitigating means is provided for each of the belt portion for supporting the upper body and the belt portion for supporting the vehicle body.

This object is achieved by the present invention, according to one aspect of the present invention, in the seat belt is installed in conjunction with the seat of the vehicle, the first retractor fixed to the vehicle body of the vehicle; One end is releasably fixed to the first retractor, the other end is fixed to a tongue releasably fastened to a knuckle fixed to the vehicle body, and is movably inserted into a guide pulley fixed to the vehicle body, and close to the tongue. The first seat belt portion is formed with a cushioning portion stitched to a plurality of folds gradually developed when a tensile force of more than a reference value is applied; A second seat belt part having one end fixed to the tongue, and a proximal part of the tongue having a buffer part stitched with a plurality of folded parts gradually developed when a tensile force of more than a reference value is applied; And a second retractor fixed to the vehicle body of the vehicle and having the other end of the second seat belt portion retractably fixed thereto.

1 is a perspective view showing a typical seat belt.

Figure 2 is an exploded perspective view showing a seat belt according to the present invention.

3 is a state of use of the seat belt according to the present invention.

Explanation of symbols for the main parts of the drawings

4: tung 5: buckle

6: guide pulley 10: first retractor

20: first seat belt portion 21: buffer portion

30: second seat belt portion 31: buffer portion

40: second retractor S: sheet

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exploded perspective view of the seat belt assembly for an automobile according to the present invention, Figure 3 is a state diagram of the use of the seat belt for automobile according to the present invention.

3 and 4, the seat belt assembly according to the present invention is the first retractor 10, the first seat belt portion 20, the second seat belt portion 30 and the second retractor 40 It is composed.

In more detail, the first retractor 10 is basically formed to be fixed to, for example, a central pillar of a vehicle body (not shown), and the first seat belt portion 20 to be described below is automatically wound, as well as of a vehicle. It is formed to lock the seat belt in the event of a collision.

One end of the first seat belt portion 20 is fixed to a ratchet mechanism built into the first retractor 10 so that the first seat belt portion 20 can be rolled out in a rolled manner as well as an automobile crash. When fixed to the first retractor 10 is configured to protect the driver or occupant.

In particular, the other end of the first seat belt portion 20 according to the present invention is fixed to the tongue (4) releasably fastened to the buckle (5) as described above, the other end is called a load limiter (load limiter) A buffer portion 21 called) is formed.

The shock absorbing portion 21 is formed in close proximity to the tongue 4 as well as forming a plurality of folded portions 21a and then stitched so that when the tensile force of a predetermined size or more is applied, the stitching portion may be gradually unfolded while being unfolded. Is formed.

Of course, the first seat belt 20, when used, basically supports from one shoulder to the other waist of the upper body of the driver or occupant.

One end of the second seat belt portion 30 is also fixed to the tongue 4, and a shock absorbing portion 31 is formed at the other end of the second seat belt portion 30 adjacent to the tongue 4.

The shock absorbing portion 31 is formed similarly to the shock absorbing portion 21 formed on the first seat belt portion 20, and a plurality of folded portions 31a by folding a portion of the seat belt adjacent to the tongue 4. It is formed by sewing after forming a.

Each of the folded portions 31a, of course, is formed so that when the tensile force of a predetermined size or more is applied, the sewing portions can be unfolded and unfolded gradually.

The other end of the second seat belt portion 30 is formed similarly to the first retractor 10 and is removably fixed to the second retractor 40, which can be fixed to the central pillar of the vehicle body, for example. .

The second retractor 40 is, of course, inflated by applying a tensile force to the second seat belt portion 30 so that the second seat belt portion 30 can support the lower body of the driver or the occupant in the event of a vehicle crash. To keep.

According to the operation mode of the seat belt according to the present invention, the seat belt is first worn by the driver or occupant after seating on the seat (S) by pulling the tongue 4 and fastening to the knuckle (5).

At this time, the respective seat belts are simultaneously drawn out from the respective retractor, that is, the first seat belt portion 20 is from the first retractor 10 and the second seat belt portion 30 is the second rib. Simultaneously withdrawn from the tractor 10, the first seat belt portion 20 supports the upper body of the driver or the passenger in a diagonal direction, and the second seat belt portion 30 supports the lower body in the lateral direction, wherein the respective Some tension is applied to the seat belt portions 20 and 30 by the respective retractors 10 and 40.

In this state, when the vehicle collides and the driver's or passenger's body moves forward and instantaneously, tension is applied to each of the seat belts 20 and 30, and at the same time, the seat belts are caused by the respective retractors 10 and 40. 20 and 30 are locked to fix the driver's or passenger's body to the seat S. FIG.

At this time or afterwards, the body moves excessively forward and the seat belts 20 and 30 are exerted a tensile force of more than the prescribed value, and the respective seat belts 20 and 30 are exerted a tension of more than the prescribed value. As the stitches of the buffer parts 21 and 31 formed on the belts 20 and 30 are torn off, the folded parts 21 a and 31 a are gradually and sequentially developed to absorb and cushion the tension force and to fix the body in the normal position. Let's go.

This prevents the injury and compression of the body due to excessive tension of the seat belt.

As a result, according to the seat belt assembly according to the present invention, not only the seat belt can be easily attached and detached, but also the secondary pressure, impact or injury caused by the seat belt can be completely prevented in the event of a collision of the vehicle. The effect is more stable protection.

Although a preferred embodiment according to the present invention has been described above, it will be understood by those skilled in the art that various modifications and variations can be made without departing from the scope of the appended claims.

Claims (1)

In the seat belt to be connected to the seat of the car to protect the driver or occupant in the event of a car accident, A first retractor 10 fixed to a vehicle body of the vehicle; One end is fixed to the first retractor 10 to be retractable, the other end is fixed to a tongue (4) releasably fastened to the knuckle (5) fixed to the vehicle body, the guide pulley fixed to the vehicle body (6) is movably inserted, the close portion of the tongue (5) is formed a plurality of folded portion (21a) that is gradually developed when a tensile force of more than a reference value is applied to the cushioning portion 21 is formed 1 seat belt portion 20; One end is fixed to the tongue (4), the adjacent portion of the tongue (4) is formed a cushioning portion 31 is a plurality of folded portion (31a) that is gradually developed when a tensile force of more than a reference value is applied Second seat belt portion 30; And And a second retractor (40) fixed to the vehicle body of the vehicle and having the other end of the second seat belt (30) retractably fixed thereto.