JPH11170968A - Car seat belt supported by four points - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a head part and a shoulder part from largely sticking out of a belt and touching a handle or a dashboard or to prevent strong impact from impressing a belly part, by providing two belts and a detachable buckle at their central part. SOLUTION: A first belt 6 comes out of a retractor 8, passes a car body fixing part 7, bends downward, and is connected with a fixing part 9. A rotatable fixing part 2 is provided on the top part of a backrest 1 of a seat on the opposite side of a door column. This is linked with each part and a structure of a seat rail part having shock resistant strength. A belt 3 comes out of the fixing part 2, passes a buckle 4, and is connected with a belt length adjusting tool 10. Both two belts 3, 6 have detachable buckles 4, 5 respectively at their central part, and can slide independently. Thus, these belts cover a person in the X-shape from the upper parts of his/her both shoulders. In addition, because the belts are supported at four points, impact force impressed on the fixing part 2 is reduced to one-fourth of real force.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0101]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seat belt attached to an automobile seat.

[0002]

2. Description of the Related Art A three-point support system is used as a conventional seat belt attached to an automobile seat. In this method, a belt is worn diagonally downward from one shoulder of a person, and the abdomen is wound. However, in this method, the shoulder, which is not held down by the belt at the time of the collision, causes the head, which is the most important part of the person, to largely protrude from the belt together with the shoulder. As a result, there was a risk of hitting the head against the steering wheel or dashboard. In order to prevent this, some vehicles have an airbag mounted on the steering wheel or dashboard. However, airbags sometimes use the explosive power of explosives and sensors, causing malfunctions, which in some cases resulted in deaths of children. In the conventional three-point belt support, the belt is laterally applied to the abdomen, and a strong impact is applied to the abdomen at the time of collision, which is dangerous.

[0003]

SUMMARY OF THE INVENTION In the present invention, even if an airbag is not mounted at the time of a collision, the head and shoulders are largely protruded from the belt so that they do not hit the steering wheel or the dashboard, and a strong shock is applied to the abdomen. It was invented not to add.

[0004]

Now, the structure will be described. Two belts cover the body. The first belt protrudes from the fixed part on the upper part of the door post of the car body and is fixed to the car body under the seat on the same side. A fixing portion is provided at the upper end of the seat back opposite to the door support. This fixing part is connected to the impact-resistant structure of the inside of the backrest, of the rotating part that supports it, and of the seat rail part. The next belt comes out of this fixing portion and is fixed to the vehicle body under the seat on the same side. Both belts have fasteners that can be removed in the middle.

[0005]

Next, the operation of the present invention will be described. A person sits on the seat and drags the left and right belts and points at the fasteners. In this state, the belt is covered in an X shape from the upper portions of both shoulders of the person. For this reason, when an impact is received, the left and right shoulders are pressed by both belts in a well-balanced manner, so that the head and the upper body are prevented from significantly turning forward. And the head does not hit the steering wheel or dashboard, ensuring safety.

[0006]

FIG. 1 shows an embodiment of the present invention. A retractor 8 is provided below the door support on the side of the seat. From here, the vehicle body fixing portion 7 is provided above the support. The vehicle body fixing portion 7 is rotatably mounted so that a belt can slide through the inside. The first belt 6 comes out of the retractor 8, passes through the vehicle body fixing portion 7, bends downward, and connects to the vehicle body fixing portion 9 on the lower side of the seat on the same side as the retractor 8. Then, a rotatable fixing portion 2 is provided at the upper end of the backrest 1 of the seat opposite to the door support. This fixing part 2 is inside the backrest 1,
And it is connected to a structure having impact resistance of the rotating part supporting it and the seat rail part. The next belt 3 exits from the fixing portion 2, passes through the fastener 4, and is connected to a belt length adjuster 10. A connecting belt 11 is connected to the belt length adjuster 10, and is connected to a vehicle body fixing portion 12 provided on the vehicle body below the seat on the same side. With the belt length adjuster 10, the slackness of the belt 3 can be adjusted. Both belts are provided with fasteners 4 and 5 which can be attached and detached in the middle of the two belts. Belt 3, and
6 can slide the fasteners 4 and 5, respectively. With the above configuration, a person sits in a state where the fasteners 4 and 5 are disengaged, pulls the left and right belts, locks them by pointing the fasteners. In this state, the belt covers the upper part of the shoulders of the person in an X-shape.
Instead of this, the connecting belt 11 may be provided with a retractor and fixed to the vehicle body. The belt connection method in this case is a method of starting from the fixed portion 2 of the backrest and connecting the other end to the lower retractor as shown in FIG. Another method is to provide a rotatable fixing part 7 attached to a column instead of the fixing part 2, pull out the belt from the retractor in the same way as the column side, pass through the fixing part 7, go down, pass through the fastener 4, and fix the vehicle body Part 12
It may be connected to The weak point of the present invention is the fixing portion 2 of the backrest.
Although it is more shock resistant, the fixing part 2
Impact force is about one-fourth. Therefore, it is possible to connect the inner frame of the backrest, the reclining rotating portion that supports it, and the seat rail portion with a structure having impact resistance.

[0007]

With the above construction, when the vehicle is impacted by a collision or the like, the left and right shoulders of the occupant are pressed by both belts in a well-balanced manner, and the head and upper body are enlarged. It is suppressed that we turn back. And
The head does not hit the steering wheel or dashboard, ensuring safety. In the conventional three-point belt support,
The abdomen was sideways with a belt, and at the time of the collision there was strong pressure on the abdomen, which was dangerous. In the present invention, the belt covers the abdomen so as to avoid the abdomen, so that safety is further ensured.
When the child is seated, the shoulders can be reliably covered with the belt by sliding the fasteners 4 and 5 downward. Further, when the backrest 1 is reclined, the shoulder belt floats in the conventional three-point system, but in the present invention, at least one belt is related to the shoulder and is safer.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

[Explanation of symbols]

1 backrest 2 fixed part of backrest
3 Belt 4 Fastener 5 Fastener
6 Belt 7 Body fixing part 8 Retractor
9 body fixing part 10 belt length adjuster 11 connecting belt 1
2 Body fixing part 13 Belt cover

Claims (4)

[Claims] 1. A fixing portion is provided on an upper part of a vehicle body on a door side beside a seat back. A fixing portion is also provided on the lower side of the vehicle body on the same side of the fixing portion. The upper and lower fixed parts are connected by a belt. On the other hand, a fixing portion coupled to the internal frame is provided at the upper end of the seat back opposite to the door. A fixing portion is also provided on the vehicle body at the lower side of the backrest on the same side as the fixing portion. The upper and lower fixed parts are connected by a belt. In the middle of the belt, the two belts are provided with a fastener which can be connected and separated. The four-point support vehicle seat belt configured as described above. 2. A rotatable fixing member is provided on the upper part of the vehicle body on the side of the door next to the seat back. A retractor and a fixing part are provided on the lower vehicle body on the door side. The four-point support vehicle seat belt according to claim 1, wherein the belt is taken out of the retractor, passes through a slidable fixing portion on the upper side of the vehicle body on the door side, and is connected to the fixing portion on the lower side on the door side with a belt. 3. The retractor is fixed to a vehicle body at a lower side of a seat back opposite to a door side. The four-point support vehicle seat belt according to claim 1, wherein the belt is taken out from the retractor, and the belt is connected to a fixed portion at an upper end of the seat back by a belt. 4. A retractor and a fixing portion are fixed to a vehicle body below a seat backrest on a side opposite to a door side. At the upper end of the seat back on the same side, there is provided a rotatable fixing portion on which the belt can slide. The four-point support vehicle seat belt according to claim 1, wherein the belt is taken out of the retractor, passes through a slidable fixing portion at an upper portion of the backrest, and is connected to a fixing portion provided on a vehicle body at a lateral lower portion of the backrest.