JP2011251577A - Occupant crash protection device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an occupant crash protection device protecting the body of an occupant in a vehicle when meeting with a traffic accident.SOLUTION: The occupant crash protection device includes a vehicle seat 2 on which the occupant sits down, a seat belt mechanism 3 constraining the occupant to the vehicle seat 2, and an inside rear view mirror 4 through which the occupant confirms the rear, and includes a reclining angle detection means and a sliding amount detection means detecting the reclining angle and the sliding amount of the vehicle seat 2, an inside rear view mirror angle detection means 19 detecting the angle of the inside rear view mirror 4, an onboard ECU (Electronic Control Unit) arithmetically operating the position of the head based on the amounts detected by the reclining angle detection means, the sliding amount detection means and the inside rear view mirror angle detection means, and a head rest adjusting means and a shoulder anchor adjusting means adjusting the position of a head rest 8 mounted on the vehicle seat 2 and the position of a shoulder anchor 15 mounted on the seat belt mechanism 3 based on information from the onboard ECU.

Description

  The present invention relates to an occupant protection device for protecting an occupant provided in a vehicle.

Currently, as a device that is mounted on a vehicle and protects an occupant in the event of a car crash, for example, a “headrest position adjusting device” as in Patent Document 1 has been proposed.
The headrest position adjusting device includes an adjustment mechanism that adjusts the position of the headrest up and down and forward and backward on the vehicle seat, and a motor that drives the adjustment mechanism. And a slide amount detection means for detecting the slide amount of the vehicle seat on which the occupant is seated. The angle of the rearview mirror and the slide amount of the vehicle seat The position is estimated, the head of the occupant is detected from the estimated eye position, and the position (front and back and height) of the headrest is adjusted to reduce sequelae such as whiplash and protect the occupant.

JP 2000-060678 A

The headrest position adjustment device described above can reduce the impact on the head and cervical spine of the occupant by operating the headrest position adjustment device when the automobile encounters a collision accident. Predicted to be insufficient to protect In order to protect an occupant in the event of a vehicle collision, the positional relationship between the headrest and the shoulder anchor of the seat belt is important, and it is necessary to adjust the position of the headrest and the shoulder anchor according to the occupant system. However, shoulder anchors are often not adjusted by passengers to suit their system.
Therefore, the present invention has been made to solve the above-described problems, and an object of the present invention is to provide an occupant protection device that can safely protect the occupant's body when an automobile encounters a collision accident. To do.

In order to solve the problems described above, the occupant protection device of the present invention is equipped with a vehicle seat on which the occupant is seated, a seat belt mechanism that restrains the occupant on the vehicle seat, and a room mirror that confirms the rear of the occupant. The vehicle seat has a reclining angle detection means and a slide amount detection means for detecting a reclining angle and a slide amount of the vehicle seat, and the rearview mirror has a rearview mirror angle detection means for detecting the angle of the rearview mirror, The vehicle includes an in-vehicle ECU that calculates the position of the head based on the detection amounts of the reclining angle detection means, the slide amount detection means, and the room mirror angle detection means, and the headrest position and the seat that are provided in the vehicle seat based on the information of the in-vehicle ECU A headrest adjusting means and a shoulder anchor adjusting means for adjusting a shoulder anchor position provided in the belt mechanism are provided. And technical features the Rukoto.

  According to the occupant protection device of claim 1, when the vehicle encounters a collision accident, the headrest and shoulder anchors are automatically adjusted according to the occupant system to safeguard the occupant's head, cervical spine and body. It becomes possible.

It is a figure which shows a vehicle seat provided with an occupant protection device, a seat belt mechanism, and a room mirror. It is a figure which shows the detail of a vehicle seat provided with a passenger | crew protection device, and a seatbelt mechanism.

Embodiments of the present invention will be described below with reference to the drawings.
An occupant protection device 1 (not shown) of the present invention includes a vehicle seat 2 on which a passenger is seated in a vehicle compartment, a seat belt mechanism 3 that restrains the passenger on the vehicle seat 2, and a passenger seated on the vehicle seat. Provided in the rearview mirror 4 to confirm the rear.

  As shown in FIG. 1, the vehicle seat 2 is a seat on which an occupant is seated in a vehicle interior, and is a skeleton of the vehicle seat 1, and a seat cushion frame 5 and a back frame 6 that support the occupant, and the seat cushion. A rail 7 for moving the frame 5 and the back frame 6 back and forth in the vehicle compartment is provided, a headrest 8 for protecting the head and cervical vertebrae of the occupant at the upper end of the back frame 6, and a headrest for adjusting the headrest 8 up and down and back and forth An adjusting means 9 is provided, a reclining angle detecting means 10 for detecting the reclining angle of the vehicle seat 2 at the lower end of the back frame 6, and a slide amount detecting means for detecting the slide amounts of the seat cushion frame 5 and the back frame 6 on the rail 7. 11 is provided. Further, information detected by the reclining angle detection means 10 and the slide amount detection means 11 is transmitted to an in-vehicle ECU 20 described later.

  As shown in FIG. 1, the seat belt mechanism 3 is a mechanism for restraining an occupant seated on the vehicle seat 1, and includes a belt portion 12 that restrains the body portion of the occupant to the vehicle seat 1, and a belt portion. 12, a tongue 13 attached to the tongue 13, a buckle 14 that is detachably coupled to the tongue 13, a shoulder anchor 15 that moves the belt portion 13 up and down in accordance with the position of the shoulder of an occupant seated on the vehicle seat 1, and a belt portion 12 includes a retractor 16 that extends and winds 12 and a lap belt 17 that restrains the occupant's waist between the buckle 14 and the retractor 16 to the vehicle seat 1. Here, the shoulder anchor 15 includes a shoulder anchor adjusting means 18 that receives a signal from the in-vehicle ECU 20 and moves the shoulder anchor 15 up and down. The retractor 16 is provided at the end of the belt portion 13 provided from the shoulder anchor 15 to the vehicle body floor, and the buckle 14 is provided near the vehicle body floor of the vehicle seat 1 at a position symmetrical to the retractor 16.

As shown in FIG. 2, the room mirror 4 is provided so that an occupant sitting on the vehicle seat 1 can confirm the rear side, and is provided at a position where the occupant inside the vehicle can easily check the rear side of the vehicle. Room mirror angle detecting means 19 for detecting the tilt angle of the mirror 4 is provided. Information detected by the room mirror angle detection means 19 is transmitted to the in-vehicle ECU 20.

  The in-vehicle ECU 20 (not shown) is for calculating the position of the head of the occupant based on the information detected by the reclining angle detection means 10, the slide amount detection means 11, and the room mirror angle detection means 19. The in-vehicle ECU 20 also adjusts the position of the headrest 8 on the vehicle seat up and down and back and forth based on the calculated information, and the shoulder anchor adjustment means for moving the shoulder anchor 15 having the seat belt mechanism 3 up and down. By appropriately controlling 18, it is possible to adjust the position according to the passenger system.

Next, a procedure for operating the occupant protection device 1 will be described.
The occupant unlocks the vehicle and sits on the vehicle seat 2.
After starting the vehicle engine, the passenger seated in the vehicle seat 2 moves the vehicle seat 2 back and forth along the rail 7 in accordance with his / her system so that the accelerator pedal and brake pedal provided in the vehicle can be easily operated. The reclining angle is adjusted by tilting the back frame 5. Here, when the occupant moves the vehicle seat 2 back and forth and tilts the reclining, the slide amount detecting means 11 of the rail 7 included in the vehicle seat 2 and the reclining angle detecting means 10 for detecting the reclining angle are used to detect the vehicle. The sliding amount of the seat 2 and the reclining angle are detected, and information is transmitted to the in-vehicle ECU 20 provided in the vehicle.

  Next, an occupant who has adjusted the vehicle seat 2 according to his / her own system joins the tongue 13 provided on the belt portion 12 extending from the shoulder anchor 15 to the detachable buckle 14 so that the belt portion 12 and the buckle 14 are connected. Since the body of the occupant is restrained by the shoulder anchor 15 and the waist of the occupant is restrained by the lap belt 18, it is possible to restrain the body of the vehicle on the vehicle seat 2. Moreover, the passenger | crew who restrained his body to the vehicle seat adjusts the room mirror 4 which confirms the vehicle rear. Here, by adjusting the rearview mirror 4 to an angle at which the occupant can confirm the rear of the vehicle, the rearview mirror angle detection means 19 provided inside the rearview mirror 4 detects the angle at which it is tilted up and down and left and right, and transmits information to the in-vehicle ECU 20. .

  At this time, since the occupant finishes adjusting the angle of the rearview mirror 4, information detected by the reclining angle detection means 10, the slide amount detection means 11, and the rearview mirror angle detection means 19 is transmitted to the in-vehicle ECU 20. The ECU 20 starts a calculation process to detect the position of the head of the occupant from the detected information.

  The in-vehicle ECU 20 that has finished the arithmetic processing controls the headrest adjusting means 9 that adjusts the headrest 8 provided in the vehicle seat up and down and back and forth, and the shoulder anchor adjusting means 18 provided in the seat belt mechanism, and the headrest 8 and the shoulder anchor 15 are adjusted. It automatically adjusts to the optimal position that can protect the passenger safely in the event of a vehicle accident according to the passenger system.

  Therefore, by using the occupant protection device 1 of the present invention, the headrest 8 and the shoulder anchor 15 can be automatically adjusted according to the occupant system before the vehicle encounters a collision accident. In addition to protecting the head and cervical vertebrae, the belt part 13 can be moved to the position of the occupant's shoulder and the body can be restrained, so the occupant protection device can safely protect the occupant's body 1 can be provided.

DESCRIPTION OF SYMBOLS 1 Crew protection device 2 Seat 3 for vehicles Seat belt mechanism 4 Room mirror 5 Seat cushion frame 6 Back frame 7 Rail 8 Headrest 9 Headrest adjustment means 10 Reclining angle detection means 11 Slide amount detection means 12 Belt part 13 Tongue 14 Buckle 15 Shoulder anchor 16 retractor 17 lap belt 18 shoulder anchor adjusting means 19 room mirror angle detecting means 20 on-vehicle ECU

Claims (1)

An occupant protection device that is mounted on a vehicle and protects an occupant in the event of a collision,
The occupant protection device is mounted on a vehicle and has a vehicle seat on which the occupant sits;
A seat belt mechanism for restraining an occupant seated on the vehicle seat;
The occupant seated on the vehicle seat includes a room mirror for confirming the rear of the vehicle,
The vehicle seat includes a reclining angle detection unit that detects a reclining angle of the vehicle seat, and a slide amount detection unit that detects a slide amount of the vehicle seat,
The room mirror has room mirror angle detection means for detecting the angle of inclination of the room mirror,
The vehicle includes an in-vehicle ECU that calculates the position of the occupant's head based on the detection amounts of the reclining angle detection means, the slide amount detection means, and the room mirror angle detection means;
Occupant protection, comprising headrest adjusting means and shoulder anchor adjusting means for adjusting the position of the headrest of the vehicle seat and the vertical position of the shoulder anchor of the seatbelt mechanism based on information from the in-vehicle ECU apparatus.

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