JPH10119699A - Occupant protecting device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide such an occupant protecting device as being capable of protecting an occupant from being pushed outside a body, independently of the conditions of a window. SOLUTION: Rail members 26, 27 are provided along two upper and lower sides of a door window 3. A curtain member 21 supported with the rail embers 26, 27 in a movable manner is provided at the end on the room side of the window 3 to shield the window 3. A mechanical sensor is provided on a door to sense a collision impulse. When impulse at a preset value or more is sensed by the sensor, a coil spring is released from constraint to energize the curtain member 21 forward, shield the window 3 from the inside with the curtain member 21 and hold an occupant A from being directed to the door side with the curtain member 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an occupant protection system for a vehicle, which protects an occupant by suppressing a behavior accompanying an impact applied from a vehicle side.

[0002]

2. Description of the Related Art When an impact is applied to a vehicle (vehicle) from the side of the vehicle body (vehicle side), inertia acts on the upper body of an occupant sitting on a front seat and a rear seat, and the vehicle (vehicle) continues to stay there. The vehicle interior side member such as a door member that enters the vehicle interior due to an impact from the vehicle body side and the upper body of the occupant relatively approach to each other.

[0003] When the applied impact force increases, this behavior appears as if the occupant is pushed out of the vehicle body. The side airbag device is a device that protects an occupant from such an impact from the side of the vehicle body.

[0004]

By the way, this device is
From the inside of the door or the seat, between the door inner surface and the occupant, the airbag bag is inflated to restrict the movement of the occupant's upper body.

For this reason, if the window is opened or if the glass of the window is damaged, the surface on the vehicle body side supporting the inflated airbag body is reduced, and the occupant is disengaged from the vehicle. There is a possibility that the behavior of pushing out can not be suppressed.

[0006] Under these circumstances, there is a need for an occupant protection device that is particularly effective against the behavior of pushing an occupant out of the vehicle body. The present invention has been made by focusing on the above circumstances, and the purpose thereof is, regardless of the state of the window,
An object of the present invention is to provide an occupant protection device for a vehicle that can protect an occupant from being pushed out of the vehicle body.

[0007]

According to a first aspect of the present invention, there is provided an occupant protection device having a rail member provided along a side of a window of a door, and movably supported by the rail member. A flexible shielding member that shields the inside of the window waiting at the end of the window is provided, and when an impact of a predetermined value or more is applied to the side of the vehicle, the shielding member is urged toward the center of the window An urging means for guiding the shielding member to a position for shielding the window portion is provided, and when an impact is applied to the vehicle side portion, the interior of the window portion is shielded by the shielding member.

That is, according to the occupant protection device of the first aspect, when an impact equal to or more than a predetermined value is applied to the side of the vehicle, the shielding member waiting at the end of the window is attached to the center of the window. Power is added.

[0009] Then, the shielding member is guided by the rail member and moves from the standby position to the position for shielding the window, thereby forming a flexible wall between the window and the occupant. By this wall, even if the window is open, the behavior of pushing the occupant out of the vehicle body is suppressed.

In particular, when an airbag device for inflating the airbag is used together between the inner surface of the door and the occupant, the shielding member functions as a surface for supporting the inflated airbag from the vehicle body side. It also functions as an auxiliary tool to fully demonstrate the function of.

According to a second aspect of the present invention, in addition to the above object, in order to suppress the behavior of the shielding member returning from the rail member end due to the reaction force, the rail member according to the first aspect is shielded at a predetermined position. A holding portion for fixing the member was formed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described with reference to FIGS.
A description will be given based on the first embodiment shown in FIG. FIG.
FIG. 1 schematically shows a rear-side cabin of an automobile (vehicle), for example, a 4-door type automobile.

Reference numeral 2 in the figure denotes, for example, a side-opening rear door which opens and closes an entrance (not shown) formed on a side surface of the vehicle body 1a adjacent to the rear seat 1. As shown in FIG. 2, the rear door 2 has a box-shaped main body 7 formed by combining a door outer panel member 4, a door inner panel member 5, and a door trim 6 on a lower side, and a main body 7 on an upper side. And a frame-shaped sash 8 that stands up from the front. Further, for example, the longitudinal direction (vehicle longitudinal direction) inside the sash 8 is partitioned by a partition member 9. A front region of the sash 8 partitioned by the partition member 9 is a lifting device (not shown) built in the main body 7.
It is opened and closed by the glass 10 which is raised and lowered by the control. The glass 11 is fitted into the remaining rear region (fixed glass that does not move up and down).

An occupant protection device 20, which is an essential part of the present invention, is provided in the window 3 of the rear door 2 composed of the sash 8 and the glass 10, 11. The occupant protection device 20
When an impact of a predetermined value or more is applied from the side of the vehicle body, the shielding member,
For example, a flexible curtain member 21 such as a nylon curtain or a cloth curtain is drawn from the rear end of the window 3 (rear end in the vehicle front-rear direction) to the vicinity of the center of the window 3 along the glass inner surface. Device.

The detailed structure of the entire occupant protection device 20 is shown in FIG. 2, and the detailed structure of each part in FIG. 2 is shown in FIGS.
Is shown in Describing the structure of the device 20, reference numeral 22 denotes a rectangular tube-shaped curtain accommodating tube, for example. The curtain accommodating tube 22 includes, for example, a sash portion 8b constituting an upper side of the window portion 3 along an inner surface of a sash portion 8a constituting a rear side (rear side in the vehicle longitudinal direction) of the window portion 3.
, And immediately below the upper surface portion 8c of the main body portion 7 also constituting the lower side.

A flexible curtain member such as a long nylon curtain or cloth curtain having a length corresponding to the height of the window portion 3 as shown in FIG. 21 is retractably wound and accommodated. In addition, both ends of the core rod 21a around which the curtain member 21 is wound are rotatably supported on the inner surface of the curtain accommodating tube 22 via the bracket 23 as shown in FIG.

The leading end of the wound curtain member 21 passes through a slit-shaped curtain outlet 24 which is formed on the peripheral wall of the curtain accommodating cylinder 21 and opens at the center of the window, and is arranged in the vicinity of the curtain outlet. It is connected to a support rod 25 having a rectangular shape.

On the other hand, from the upper end of the curtain housing cylinder 22, a first rail member, for example, an elongated channel member 2 is provided.
6x (a member having a substantially C-shaped cross section) is a sash portion 8b
Along the inner surface of the window 3 to the vicinity of the center of the window 3.
The channel member 26x is fixed to the sash portion 8b with the slot 26a facing downward.

From the lower end of the curtain housing tube 22,
A rail member paired with the rail member 26x, for example, a channel member 26y similar to the rail member 26x passes through the inside of the main body portion 7, that is, just below the upper surface portion 7c to near the center of the window portion 3. Extending. The channel member 26y is fixed to the door inner panel member 5 with the slot 26b facing upward.

In each of the channel members 26x and 26y, for example, a spherical body 28 is slidably fitted as a first slide member. Also, as shown in FIG. 2, the channel member 26 sandwiching the respective slots 26a and 26b
On one side of the lower surface of x, 26y, the channel member 26x,
Over substantially the entire length of 26y, there are provided elongated channel members 27x and 27y in which a pair of second rail members, for example, slots 27a and 27b are arranged laterally on the vehicle interior side.
In the channel members 27x and 27y, for example, a roller 29 is rotatably fitted as a second slide member.

Then, as shown in FIGS. 3 and 4 (only the lower side is shown), each spherical body 28, roller 29
Are rotatably supported by upper and lower ends of a support rod 25, respectively.
The curtain member 21 can be pulled out substantially in parallel from the inside of the curtain accommodating tube 22 on the rear side of the window portion 3 as it slides in the x and 26y. However, the upper wall of the door trim 6 is provided with a long slit 6a through which the support rod 25 passes.

Each of the rollers 29 at the upper and lower portions of the support rod 25 is, for example, as shown in FIGS. 5 and 6 (only the lower side is shown) by a pair of spring members 30, 30 from above and below. It is urged so as to be sandwiched and connected to a slide 31 slidably incorporated in the support rod 25, so that the entire roller can be displaced in the axial direction of the support rod 25. Here, reference numeral 32 denotes a support shaft that protrudes from the slider 31 and rotatably supports the roller 29, 32a denotes a retaining washer provided on the support shaft 32, and 33 denotes the spring member 30 provided in the support rod 25. Reference numeral 25a denotes a spring seat for receiving the roller 30, and a slit provided on the peripheral wall of the support rod 25 for allowing the roller 29 to be displaced.

On the other hand, each spherical body 28 (only one side is shown)
As shown in FIG. 6, a cord-like body, for example, two wires 34, 34 extends from the wire. And each wire 3
As shown in FIGS. 1 and 2, the extending ends of the fourth and fourth extend downward through, for example, the curtain outlet 24, the inside of the curtain housing tube 22, and the lower end of the curtain housing tube 22.
It is connected to a main body part which does not interfere with the ascending and descending glass 10, for example, a mechanical sensing device 35 built in a lower part of the glass 11.

When a shock equal to or more than a predetermined value is applied to the mechanical sensing device 35 from the outer surface of the door as shown in FIGS. The structure to make it free is adopted.

That is, the device 35 has, for example, a pedestal portion which protrudes in a tapered shape toward the door inner panel member side, for example, a tapered surface 37a on both left and right sides, as a presser, on the inner surface of the door outer panel member 4 on the vehicle inner side. A vertically extending triangular base portion 37 is provided, and a slit 38 extending vertically, for example, is provided as a weak portion in a plate surface portion of the door inner panel member 5 which is in close proximity to the tip of the base portion 37, and further opposite. A support 39 for detachably holding the retaining ball 36 at the slit position is provided on the side plate surface portion.

More specifically, the support 39 is composed of a pair of box-shaped members 40 mounted on the plate surface of the door inner panel member 5 so as to surround the front surface of the slit from both left and right sides, for example. In these box-shaped members 40, a sphere accommodating portion is formed inside, and a fragile portion is formed on both front walls 40b arranged with a slit-shaped gap 40a interposed therebetween. A retaining ball 35 is accommodated in this ball accommodating portion, and is locked in a slit-shaped gap 40a.

The locking of the stop ball 35 restricts the movement of the support rod 25 via the wires 34, 34 so that the front end of the curtain member 21 is positioned at the rear of the window (the rear of the vehicle in the front-rear direction). ). In addition, the lower part of the box-shaped member 40 is opened for setting the retaining ball 35.

Each of the wires 34, 34 is an elastic member interposed in a compressed state between the spherical body 28 facing each other and the upper and lower ends of the curtain accommodating cylinder 22, as shown in FIGS. , For example, the elastic force accumulated in the coil spring 41 in a compressed state.
5 is constrained between the slit 36 and the slit-shaped gap 40a.

Thus, when an impact force F is applied from the outer surface of the door that pushes the retaining ball 36 out of the box-shaped member 40 at the tip of the pedestal, the retaining ball 35 separates from the box-shaped member 40a and becomes free. It is like that.

As the stop ball 35 becomes free, the support rod 25 is moved toward the center of the window 3 by the urging force of each coil spring 41, that is, the tip of the curtain member 21 at the standby position is moved. By urging the window member 3 toward the center thereof, the curtain member 21 can be instantaneously pulled out from the curtain accommodating cylinder 22 along the inner surface of the glass (urging means).

At the tip of each rail member 27, a direction different from the traveling direction of the curtain member 21, for example, 180
Bending part 42 bent up and down to make a U-turn
(Corresponding to a holding portion) is formed so that the advancing direction of the tip of the curtain member 21 is changed at the rail member end so that the drawn-out curtain member 21 does not return to a position where the glass members 10 and 11 are shielded. It is (fixed).

Next, the operation of the thus configured occupant protection device will be described. When the occupant A is seated on the rear seat 1 as shown in FIG. 7A, the front wall of the box-shaped member 40 is viewed from the side of the vehicle body, for example, the outer surface of the rear door 1 as shown in FIGS. It is assumed that an impact F is received that causes the 40b to be greatly deformed (the impact F causes the tip of the base portion 37 to enter the box-shaped member 40 through the slit 38 and press the stop ball 36).

As a result, the retaining ball 36 is moved to the box-shaped member 40.
Is pushed out from the inside of the box-shaped member 40 by the deformation such that it opens outwardly at the front wall 40b of the window member 40, and its own restraint is released, that is, it becomes a free state. The restriction of the support rod 25 that is waiting for is released.

Then, the support rod 25 is moved to each of the coil springs 4.
With the elastic force (compression force) accumulated in the rails 1 and 41, the rails 26 and 27 guide the rails and slide forward, that is, toward the center of the window.

By this slide, the curtain member 21
Is drawn out of the curtain accommodating cylinder 22 as shown by a two-dot chain line in FIG. 3, and instantaneously shields the entire glass 11 and a part of the glass 10 from the vehicle interior as shown in FIG. I will do it.

When the support rod 25 reaches the distal end of the rail member 27, it is guided by the bent portion 42 in the direction opposite to the traveling direction, that is, in a direction different by 180 °, and is locked (fixed) at the distal end of the rail member. Then, the drawn-out curtain member 21 is held in a state of blocking the window area adjacent to the occupant A.

Then, as shown in FIG. 10, a flexible wall 43 composed of the curtain member 21 is formed between the window 3 and the occupant A. And by this wall 43,
The upper body (including the head) of the occupant A moving toward the door due to the impact F is received.

Thus, even if the window 3 is open or the glass of the window 3 is broken, the occupant A is prevented from being pushed out of the vehicle body (outside the door).

Therefore, regardless of the state of the window 3, the occupant A
Can be protected from the behavior of pushing out of the vehicle body. Especially,
The structure in which the tip of the curtain member 21 (shielding member) is fixed suppresses the behavior of the curtain member 21 from returning from the tip of the rail member due to the reaction force, so that the curtain member 21 is always positioned at a predetermined window position. Thus, a good occupant protection function by the curtain member 21 can be expected.

In addition, the occupant protection device 20 having such an effect employs the coil spring 41 as an urging member.
Since the structure adopts the curtain member 21 as the shielding member, it is small in size and easy to incorporate into the rear door 2.

In addition, since the mechanical sensing device 36 using the stop ball 35 (sensor) is combined, it is advantageous in that the structure is simple and the cost is low. 11 to 13 show a second embodiment of the present invention.

In this embodiment, as shown in FIG. 11, the inside of the rear seat 1 or the rear door 2 (the armrest 2
a) and the side airbag device 50 (airbag device) incorporated into the device.

The side airbag device 50 inflates the airbag 51 between the door inner surface and the occupant A when an impact F of a predetermined value or more is applied from the side of the vehicle body. When the occupant protection device 20 and the side airbag device 50 are used in combination, as shown in FIGS. 12 and 13, the curtain member 21 (shielding member) that shields the window portion 3 from the inside reduces the inflated airbag bag body 51. Since it functions as a support surface from the vehicle body side, it not only suppresses the occupant A from jumping out,
The side airbag device 50 can also function as an auxiliary tool for fully exerting the function.

However, in FIGS. 11 to 13, the first
The same reference numerals are given to the same portions as those of the embodiment, and the description is omitted. In the above-described embodiment, an example in which the curtain member is used as the shielding member has been described. However, the embodiment is not limited thereto.
Other members may be used. Of course, the entire window may be shielded from the inside (vehicle interior) by the shielding member, not the part of the window facing the occupant.

In the above-described embodiment, an example in which the shielding member is urged by using a coil spring has been described. However, for example, the window member is urged by urging the shielding member with the pressure of gas generated by an inflator or the like. And the structure is not limited.

In the above-described embodiment, the structure in which the shielding member is stopped at a fixed position by using the bent portion is employed.
The shielding member may be fixed at a predetermined position by using another structure.

In the above-described embodiment, an example in which the present invention is applied to a rear door has been described. However, the present invention may be applied to a front door, and the present invention is not limited to a vehicle door.

[0048]

As described above, according to the first aspect of the present invention, it is possible to protect the occupant from being pushed out of the vehicle body regardless of the state of the window. Claim 2
According to the invention described in (1), in addition to the effect of the invention of claim 1,
The behavior of the shield member returning from the rail member end due to the reaction force can be suppressed, and a good occupant protection function by the shield member can always be expected.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an occupant protection device according to a first embodiment of the present invention together with the inside of a vehicle to which the occupant protection device is applied.

FIG. 2 is an enlarged perspective view showing only the area around the occupant protection device;

FIG. 3 is a perspective view illustrating a structure of the occupant protection device in which a curtain member (shielding member) is housed.

FIG. 4 is a perspective view for explaining a slide structure for pulling out the curtain member.

FIG. 5A is a perspective view of a portion X in FIG. 4 for explaining a structure around a roller for guiding the movement of the curtain member. (B) A perspective view showing details of the structure around the roller.

FIG. 6 is a perspective view illustrating the structure of a mechanical sensing device of the occupant protection device.

FIG. 7 is a perspective view illustrating a process until a curtain member shields a window portion by receiving an impact.

FIG. 8 is a cross-sectional view taken along the line Y-Y in FIG. 2 for explaining the behavior of the mechanical sensing device when receiving the impact.

FIG. 9 is a sectional view taken along the line Z-Z in FIG. 2;

FIG. 10 is a cross-sectional view for explaining that a curtain member that shields the inside of the window suppresses the behavior of the occupant toward the door.

FIG. 11 illustrates a main part of an occupant protection device according to a second embodiment of the present invention.

FIG. 12 is a perspective view for explaining that the curtain member assists the side airbag device.

FIG. 13 is a sectional view of the same.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Rear seat (seat) 2 ... Rear door (door) 3 ... Window part 4 ... Door outer panel member 5 ... Door inner panel member 8 ... Sash 20 ... Occupant protection device 21 ... Curtain member (shielding member) 22 ... Curtain accommodating cylinder 24 ... Curtain outlet 25 ... Supporting rods 26x, 26y, 27x, 27y ... Channel members (rail members) 28, 29 ... Spherical bodies, rollers (slide members) 35 ... Mechanical sensing device 36 ... Stopping balls 37 ... Base 38 ... Slits 39 ... Support 41 ... Coil spring (elastic member) 42 ... Bent part (holding part) A ... Occupant.

 ──────────────────────────────────────────────────の Continued from the front page (72) Inventor Junichi Nakamura 5-33-8 Shiba, Minato-ku, Tokyo Mitsubishi Motors Corporation

Claims (2)

[Claims] 1. A rail member provided along a side constituting a window of a door, and a vehicle inner side of the window, which is movably supported by the rail and waits at an end of the window. A flexible shielding member for shielding, and a position where the impact of a predetermined value or more is applied to a side portion of the vehicle, the shielding member is urged toward the center of the window, and the shielding member is shielded from the window. And a biasing means for guiding the vehicle to the vehicle. 2. The vehicle occupant protection device according to claim 2, wherein the rail member has a holding portion for fixing the shielding member at a predetermined position.