JPS602219B2 - Safety device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a seatbelt-type safety device for restraining a passenger in an automobile and preventing a secondary collision inside the vehicle.

A two-point diagonal seat belt system is known as a secondary seat belt system. This system was very easy to use because the belt ran diagonally across the passenger's chest from one waist to the other shoulder, and did not put pressure on the passenger's abdomen. . However, in this system, the belt only restrains the passenger's upper body, so when an accident occurs, the passenger's lower body jumps forward, the upper body sinks, and the belt hangs around the neck. There was an accident that caused a cut. As a result, this system is extremely dangerous and is currently hardly used. On the other hand, despite the need for seatbelt devices being called out in recent years, many people do not wear them for various reasons, so so-called passive seatbelt systems, which are automatically installed when a passenger gets into a car, are being developed. is being developed.

However, in three-point belt systems and two-point belt systems at the waist, a mechanism is required to allow the belt to make complex movements in order to prevent passengers from getting on and off the vehicle. It feels strange to step into a tightly wound belt, and it is difficult to know how the belt will be put on, so there is a risk that it will be put on incorrectly.

In this respect, the diagonal two-point belt system does not require a complicated mechanism, and since there is only one belt stretched inside the vehicle, it does not make passengers feel uncomfortable and can be easily worn by mistake. There's no fear of it happening. Therefore, the present invention adds a device to the diagonal two-point passive seat belt system to restrain the occupant's lower body in the event of an accident, thereby taking advantage of the advantages of the diagonal two-point belt system and eliminating its risks. The purpose is to provide a suitable safety device.

The present invention will be explained below with reference to the drawings. In Fig. 1, 1 is a diagonal belt, one end of which is attached to the upper rear end of the door 3 via a buckle device 2, and the end of the belt acts to constantly pull the belt. It is attached to a tunnel section 5 in the center of the vehicle body via an emergency locking retractor 4.

Reference numeral 6 denotes a knee belt, one end of which is attached to the lower rear end of the door 3 via a buckle device 7, and is attached to the inner surface of the door 3, the inner surface of the front part of the passenger compartment in front of the passenger's knees, and the side surface of the tunnel portion 5. It is removably fixed to.

This knee belt 6 may be fixed, for example, by fixing the entire knee belt or only a necessary portion thereof using a cloth fastener or the like.

Further, the other end of the knee belt 6 is drawn into the tunnel portion 5 through a slit 8 formed in the tunnel portion 5.
A tip metal fitting 9 is sewn to the tip of the knee belt 6 drawn into the tunnel portion 5, as shown in FIG. A claw 10 is rotatably provided on the tip fitting 9, and this claw 10
is engaged with the ratchet truck 11, and the tip metal fitting 9 can be moved rearward, but cannot be moved forward. A strong spring 12 is provided in a stretched state between the tip fitting 9 and the fixed structure at the rear, and always urges the tip fitting 9 to be drawn rearward. The mounting bolt 13 of the emergency lock type retractor 4 is inserted into the innermost hole 14 of the tunnel portion 5 so as to be able to slide freely, and is constantly pulled rearward by a spring 15. The mounting bolt 13 is provided with a lever 16, and the end of the lever 16 is connected to a stopper 18 via a rod 17. This prevents the tip fitting 9 from moving backward. In the safety device of the present invention, when the door 3 of the car shrine is opened, the diagonal belt 1 is pulled out from the retractor 4 and stretched diagonally in front of the seat, as shown in FIG. You can get into the ball.

At this time, since there is only one belt in the vehicle interior, the passenger does not feel any discomfort and does not have to worry about how to put it on. When the passenger gets in the vehicle and closes the door 3, the extra length of the diagonal belt is caught in the emergency locking retractor 4, and the diagonal belt is properly attached from the shoulder to the waist of the passenger.

Since the belt system at this time is a diagonal two-point type, it does not cause discomfort to the passengers. In addition, since the emergency locking retractor 4 is used, the passenger can move freely, and when sudden acceleration is applied due to sudden braking, etc., the emergency locking mechanism is activated and the passenger is effectively ensure that However, in a contact accident where sudden braking is light, the knee belt 6 does not operate.

If the vehicle suddenly decelerates due to a serious accident, the emergency lock retractor 4 is activated as described above, the diagonal belt 1 is no longer pulled out from the retractor 4, and the diagonal belt supports the chest of the passenger. This places a large load on the diagonal belt,
The mounting bolt 13 of the emergency lock type retractor 4 slides forward along the elongated hole 14 against the elasticity of the spring 15, and the lever 16 rotates clockwise as shown by the two-dot chain line. As a result, the rod 17 is pulled rearward, the stopper 18 is rotated counterclockwise and removed from the notch 19 of the tip fitting 9, and the tip fitting 9 is rapidly pulled rearward by the elasticity of the spring 12. With this, knee belt 1
6 is drawn into the tunnel portion 5 through the slit 8, and is peeled off from the door 3, the interior wall of the vehicle, and the side surface of the tunnel portion 5.
The passenger's buttock is pressed against the front of the seat and restrained. or,
After the knee is restrained, the restraint is reliably maintained by the action of the claws 10 and ratut rack 11. Therefore, since the rider's pigtail is restrained, the rider's body will not sink down and the diagonal belt will cause injury to the neck, and the rider can use the vehicle safely.

Furthermore, as shown in FIG. 1, by providing the buckle devices 2 and 7 on the diagonal belt 1 and the knee belt 6, even if the door 3 cannot be opened due to a failure of the emergency locking retractor 4 due to an accident, etc. , the user can manually release the buckle devices 2 and 7 to open the door and easily escape from the vehicle. According to the invention,
Basically, it is easy to use because it is a diagonal two-point type, and it can be worn naturally without causing discomfort when getting in and out of the passenger compartment.In addition, in the event of an accident, the knee belt can protect the lower body. It is a safe and easy-to-use safety device that securely restrains the neck and prevents damage to the neck.

Moreover, the knee belt attachment mechanism of the present invention is operated by the load applied to the diagonal belt by locking the emergency locking retractor of the diagonal belt in the event of an accident, and has a relatively simple structure. It is possible to operate reliably.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a perspective view showing one embodiment of the present invention.
The figure is a partially cutaway side view showing the inside of the tunnel section. 1... Diagonal belt, 3... Door, 4...
・Emergency locking retractor, 6.・Niebelt,
10,1 1...Restraint holding means, 12...
...Spring means, 18...stopper. Aoi Z figure hair figure 2

Claims (1)

[Claims] 1 A diagonal belt is wound around an emergency locking retractor installed at the bottom of the inner side of the seat, and its tip is attached to the upper rear end of the door, and one end of the belt is attached to the lower rear end of the door. a knee belt that is releasably fixed to the inner surface of the vehicle window in front of the passenger's knees, and the side surface of the tunnel section in the center of the passenger compartment, and whose other end reaches the inner lower part of the seat; A spring means that always pulls the other end of the knee belt backwards, and a spring means that normally prevents the other end of the knee belt from moving backwards, and in the event of an accident, an emergency locking retractor of the diagonal belt locks the diagonal belt. It consists of a stopper that releases the prevention of rearward movement of the other end of the knee belt due to a load applied to the belt, and a restraint holding device that prevents the other end of the knee belt from moving forward. While the diagonal belt restrains the passenger's upper body, the stopper is released and the other end of the knee belt is pulled rearward, causing the knee belt to peel off from the inside of the door, the front wall of the passenger compartment, and the side of the tunnel, causing the passenger to be restrained. A safety device characterized by restraining the knees of the patient.