JP2003341453A - Rear seat occupant protecting device for automobile - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable the trapping of a rear seat occupant without interrupting a field of rear view of an driver except for a headrest installed extending onto a rear seat. <P>SOLUTION: A pair of supporting columns 7, 7 which are constructed to elongate with the operation of an inflator 11 in accordance with a signal from an impact detecting sensor 10, are erected at the lower part of a rear parcel 4 in mutually spaced relation. An occupant protecting fence 9 is provided extending between both supporting columns 7, 7. With the elongation of the supporting columns 7, 7, the occupant protecting fence 9 is developed on the rear parcel 4 in such a manner as to be spaced a proper distance from a rear window glass 3 in opposition thereto. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle rear seat occupant protection system.

[0002]

2. Description of the Related Art Conventionally, a headrest is provided on the upper portion of a rear seat to capture the head of a rear seat occupant in order to protect the rear seat occupant when an automobile collides with a road laying such as a utility pole and causes a spin. I was trying to do it.

Further, in order to shield the rear window glass from light, there is a case where the curtain device folded and installed under the rear parcel is deployed on the rear parcel to shield the rear window glass.

[0004]

However, in the case of the former headrest, it cannot be provided so as to project too high above the rear seat in order to secure the rear view of the driver. It is also possible that an occupant in the rear seat may get over the headrest and come into contact with the rear window glass or the like when the value is large.

In this case, if the latter curtain device is deployed on the rear parcel, the rear seat occupant first comes into contact with the curtain device and then moves to the rear window glass side. Has a structure for shielding the rear windshield, but does not have a structure for capturing an occupant, and since it is close to the rear windshield, it cannot exert the protective function for the rear seat occupants.

Therefore, the present invention has been devised in view of such a point, and in addition to a headrest extendedly installed on a rear seat, an automobile intended to capture a rear seat occupant without hindering a driver's rear view. It is intended to provide a rear seat occupant protection device.

[0007]

In order to achieve the above-mentioned object, the present invention separates the lower parts of the rear parcel from each other,
A pair of stanchions configured to be extended by the operation of the drive means based on the signal of the impact detection sensor are erected, a occupant protection fence is stretched between the stanchions, and the occupants are extended by extending the stanchions. The protective fence is configured to be deployed on the rear parcel so as to face the rear window glass with a considerable distance therebetween.

According to the present invention, since the pillars are normally contracted, the occupant protection fence is housed in the lower part of the rear parcel and does not hinder the rear view of the driver, so that the vehicle spins once. In the event of such a situation, the drive means is activated by this impact and it is deployed on the rear parcel so as to face the rear window glass by a considerable distance, so after overcoming the headrest, etc. Seat occupants can be captured.

Further, since the occupant protection fence of the present invention is composed of the net or the air bag, it can be housed compactly in the lower part of the rear parcel under normal conditions.

Further, since the pillar of the present invention is constructed by fitting two or more tubular bodies to each other so as to be capable of expanding and contracting, or by a foldable airbag, it is normally compact in the lower part of the rear parcel. Can be housed in

In order to achieve the above object, the present invention forms a lid by notching a part of the rear parcel, and the lid swings rearward of the vehicle body by the operation of the drive means based on the signal from the impact detection sensor. One end of the lid is hinged to the rear parcel so that it becomes possible, and the other end of the lid is engaged with a lock mechanism provided on the rear parcel side to hold the lid closed and to protect the occupant. By fixing one end of the body and the other end of the occupant protection fence to the rear parcel side, the lid is disengaged from the lock mechanism by the operation of the driving means, and the occupant protection fence is opened rearward. Was configured to be developed on the rear parcel so as to face the rear window glass at a considerable distance.

According to the present invention, when the lid is normally folded, the passenger protection fence is housed in the lower part of the rear parcel and does not hinder the driver's rear view. In the event of a rise, the drive mechanism is actuated by this impact to disengage the lid from the lock mechanism and deploy it rearward, so that it deploys on the rear parcel so as to face the rear window glass at a considerable distance. By doing so, it is possible to capture the rear seat occupant who has crossed over the headrest.

In order to achieve the above object, the present invention lays a passenger protection fence on a rear parcel, and rotates one end of the passenger protection fence by actuation of a drive means based on a signal from an impact detection sensor. It is fixed to the movable shaft and the other end side is swingable to the front side of the vehicle body, and the occupant protection fence is swung to the front side of the vehicle body by the operation of the driving means, so that a considerable distance from the rear window glass is obtained. The rear parcels are arranged so as to be spaced apart and face each other.

According to the present invention, the occupant protection fence at normal time is
Since it is installed on the rear parcel, it does not obstruct the driver's rear view, and when the car spins or the like once, the drive means is activated by this impact to swing it forward of the vehicle body. By deploying on the rear parcel so as to face the rear window glass by a considerable distance, it is possible to capture the rear seat occupant who got over the headrest etc.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION A first embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is a perspective view showing a rear passenger compartment of an automobile adopting the first embodiment of the present invention, FIG. 2 is a perspective view of the passenger protection fence when it is deployed, and FIG. 3 is FIG. 2 is a sectional view taken along line A-A of FIG. 4, FIG. 4 is a sectional view taken along line BB of FIG. 2, and FIG.
FIG. 6 is a perspective view of the first embodiment in which the main part of the occupant protection fence is shown when it is deployed.

In the figure, a rear seat 2 is arranged in the rear part of the vehicle body 1, and a rear parcel 4 installed in the vehicle body 1 is arranged between the rear window 2 and the rear window glass 3 further. There is.

The rear parcel 4 is provided with a rear speaker grill 5 and the like, and a substantially H-shaped thin portion 6 extending over substantially the entire length.

Further, a pair of support columns 7, 7 mounted on the vehicle body 1 via mounting brackets 8 are spaced apart from each other at lower left and right ends of the vehicle body 1 in the rear parcel 4.

As shown in detail in FIGS. 5 and 6, each of the columns 7, 7 has three cylindrical bodies 7a, 7b, 7c in which the diameters of the pipes from the lower side to the upper side are gradually reduced, so-called rod shapes. Like an antenna, they are configured to fit each other so that they can expand and contract.

Then, the cylinders 7a constituting the columns 7, 7 are
An inflator 11 as a driving unit that operates in response to a detection signal from the collision detection sensor 10 is provided at the lower end of the lowest cylinder 7a of the 7b and 7c. The cylindrical bodies 7b and 7c are configured to be sequentially expanded.

Further, an occupant protection fence 9 composed of a net is stretched on the uppermost cylinder 7c by fastening both ends thereof.

According to the first embodiment constructed as described above, in the normal state of the automobile, as shown in FIG. 1, FIG. 3 or FIG. 5, the cylinder body 7c is placed inside the cylinder body 7b and the cylinder body 7b. The occupant protection fence 9 is accommodated in the lower part of the rear parcel 4 by being accommodated in the cylinder 7a.

From the normal time, if the vehicle collides with a road laying such as a utility pole and causes a spin, the collision detection sensor 10 detects this impact, and based on this detection signal, the inflator 11 is detected. Operates to instantly extend the cylinders 7b and 7c with respect to the cylinder 7a. As a result, the occupant protection fence 9 cuts out the thin portion 6 of the rear parcel 4 and expands so as to face the rear window glass 3 on the rear parcel 4 at a considerable distance (FIG. 2, FIG. 4 and the state shown in FIG. 6).

As a result, when the head of the rear seat occupant 12 crosses over the headrest 2a of the rear seat 2, it is caught by the occupant protection fence 9 to prevent contact with the rear window glass 3 and the like. become.

According to the first embodiment, since the cylinders 7b and 7c are normally contracted with respect to the cylinder 7a forming the support column 7, the occupant protection fence 9 is the rear parcel 4.
When the vehicle spins once, it is housed in the lower part of the vehicle and does not obstruct the driver's rearward view, and the impact causes the inflator 11 to operate to face the rear window glass 3 at a considerable distance. As described above, by deploying on the rear parcel 4, the rear seat occupant 12 who has passed over the headrest 2a can be captured.

Further, since the occupant protection fence 9 is composed of a net, it can be housed compactly in the lower part of the rear parcel 4 under normal conditions.

Although the inflator is used as the driving means in the above-mentioned embodiment, the driving means is not limited to this, and for example, the occupant protection fence 9 is pulled up from the ceiling of the vehicle body by the force of the spring. It is possible that

The support column 7 is composed of three cylinders 7a, 7b,
Since 7c are configured to extend and contract with each other, they can be housed compactly in the lower part of the rear parcel 4 under normal conditions.

FIG. 7 shows a second embodiment of the present invention, in which the pillar 7 is formed in a columnar bag body, and the bellows-like portion 7d is formed at the upper end portion so that the bellows-like portion 7d is occupant. This is different from the first embodiment in that both ends of the protective fence 9 are fixed to each other, which is different from the first embodiment. The inflator 11 is actuated to inflate and fill the support column 7 with gas, thereby forming a bellows. As shown in FIG. 8, the occupant protection fence 9 is extended.
Is configured to expand.

FIG. 9 shows a third embodiment of the present invention, in which the occupant protection fence 9 in the second embodiment is constituted by a foldable airbag. The occupant protection fence 9 is further filled with the filled gas, and the occupant protection fence 9 is inflated and deployed (state shown in FIG. 10).

11 to 14 show a fourth embodiment of the present invention.
11 shows an embodiment of the present invention, FIG. 11 is a perspective view in which a rear compartment of an automobile adopting the fourth embodiment of the present invention is partially cut away, and FIG. 11 is a perspective view in FIG. 11, FIG. 13 is a cross-sectional view drawn in the direction of the arrow in FIG. 11, and FIG.

According to FIGS. 11 to 14, the lid 13 is formed by cutting out a part of the rear parcel 4, and the rear end of the lid 13 is attached to the rear parcel 4 via the movable shaft 14 to form a butterfly. The front side of the vehicle body 1 can be swung rearward of the vehicle body 1.

One end of an occupant protection fence 9 made of a net is fixed to the front end of the lid 13, and the other end of the occupant protection fence 9 is fixed to the rear parcel 4. There is.

One end of a bell crank body 15 is attached to the movable shaft 14, and the other end of the bell crank 15 is attached to the vehicle body 1 at one end side.
It is fixed to a cable 17 which is installed so as to be able to be wound around a winding drum (not shown) of the retractor 16 installed at.

The retractor 16 is the impact detection sensor 10
The cable 17 is instantly wound around the winding drum on the basis of the above signal.

According to the fourth embodiment configured as described above, the lid 13 is kept closed as shown in FIG. 11 or FIG. The body 9 is accommodated in the lower part of the rear parcel 4 in a state of being folded in two on the front end side of the lid body 13.

From the normal time, if the vehicle collides with a road laying such as a utility pole and causes a spin, this collision is detected by the collision detection sensor 10, and the retractor is based on this detection signal. When the drum 16 is actuated and the cable 17 is wound by the drum, the movable shaft 14 is rotated to swing the lid 13 rearward of the vehicle body 1 around the rear end side. As a result, the occupant protection fence 9 has the lid 1 at one end thereof.
It is flipped up by the front end portion of 3 and unfolds so as to face the rear window glass 3 on the rear parcel 4 at a considerable distance (state shown in FIGS. 12 and 14).

As a result, when the head of the rear seat occupant 12 gets over the headrest 2a of the rear seat 2, it is caught by the occupant protection fence 9 to prevent contact with the rear window glass 3 and the like. become.

According to the fourth embodiment, normally, the occupant protection fence 9 is housed in the lower part of the rear parcel 4 so as not to obstruct the rear view of the driver, so that the vehicle can spin once. When it is raised, the retractor 16 is actuated by this impact, and the retractor 16 is deployed on the rear parcel 4 so as to face the rear window glass 3 at a considerable distance, so that the headrest 2a is overcome. The rear passenger 12 can be captured.

Further, since the occupant protection fence 9 is composed of a net, it can be housed compactly in the lower part of the rear parcel 4 under normal conditions.

FIGS. 15 to 18 show the fifth embodiment of the present invention.
In contrast to the above-described fourth embodiment, an occupant protection fence 9 is laid on the rear parcel 4,
A different point is that the front end side of the occupant protection fence 9 is fixed to the movable shaft 14 and the rear end side of the occupant protection fence 9 is swingable with respect to the rear parcel 4, but the movable shaft 14 has one end of the bell crank body 15. , The other end of the bell crank 15 is fixedly attached to a cable 17 installed at one end of the retractor 16 which is installed on the vehicle body 1 so as to be able to be wound up on a winding drum (not shown), and the retractor 16 is impacted. It is common in that the cable 17 is instantly wound around the winding drum based on the signal from the detection sensor 10.

Therefore, according to the fifth embodiment configured as described above, in the normal state of the automobile, as shown in FIG. 15 or 17, the occupant protection fence 9 is provided with the rear parcel 4.
It is arranged on the upper side so as not to hinder the rear view of the driver.

From the normal time, if the vehicle collides with a road laying such as a utility pole and causes a spin, the collision detection sensor 10 detects this impact and the retractor is based on this detection signal. 16 operates to wind the cable 17 by the drum, so that the movable shaft 14 is rotated and the passenger protection fence 9 is swung forward of the vehicle body 1 around the front end side. As a result, the occupant protection fence 9 is flipped up at its rear end side and deployed so as to face the rear window glass 3 on the rear parcel 4 at a considerable distance (shown in FIGS. 16 and 18). Status).

As a result, when the head of the rear seat occupant 12 crosses over the headrest 2a of the rear seat 2, it is caught by the occupant protection fence 9 to prevent contact with the rear window glass 3 and the like. become.

In the above embodiment, the retractor 16 is used as the drive means, but the drive means is not limited to this. For example, the occupant protection fence 9 is flipped up by the force of a spring. There may be cases.

[0047]

As described above, according to the present invention,
Even if the occupant protection fence is installed in the rear parcel, it is normally housed compactly and does not hinder the rear view of the driver. Is deployed so as to face the rear windshield on the rear parcel by a considerable distance, and when the head of the rear seat occupant gets over the headrest of the rear seat, it is captured by the passenger protection fence and This will prevent contact with window glass or the like.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating a rear compartment of an automobile that employs a first embodiment of the present invention.

FIG. 2 is a perspective view of the occupant protection fence when it is unfolded.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

FIG. 5 is a perspective view in which the essential parts of the first embodiment are also drawn.

FIG. 6 is a perspective view in which a main part of the first embodiment when the occupant protection fence is developed is drawn.

FIG. 7 is the same sectional view as FIG. 5 according to the second embodiment of the present invention.

FIG. 8 is likewise a sectional view similar to FIG.

FIG. 9 is the same sectional view as FIG. 5 according to the third embodiment of the present invention.

FIG. 10 is likewise the same sectional view as FIG.

FIG. 11 is a perspective view in which a rear compartment of an automobile adopting a fourth embodiment of the present invention is partially cut away and drawn.

FIG. 12 is a perspective view of the occupant protection fence when it is unfolded.

13 is a cross-sectional view drawn from the direction of the arrow in FIG.

14 is a cross-sectional view drawn from the direction of the arrow in FIG.

FIG. 15 is a perspective view in which a rear compartment of an automobile adopting a fifth embodiment of the present invention is partially cut away and drawn.

FIG. 16 is a perspective view of the occupant protection fence when it is unfolded.

17 is a cross-sectional view drawn from the direction of the arrow in FIG.

18 is a cross-sectional view drawn from the direction of the arrow in FIG.

[Explanation of symbols]

1 car body 3 rear windshield 4 rear parcel 7 props 9 Occupant protection fence 10 Collision detection sensor 11 Inflator (driving means) 13 Lid 16 Retractor (drive means)

Claims (7)

[Claims] 1. A pair of support columns, which are spaced apart from each other at the bottom of the rear parcel and are configured to extend by the operation of drive means based on a signal from an impact detection sensor, and an occupant protection fence is provided between the support columns. A rear body of an automobile characterized in that the body is stretched and the struts are extended on the rear parcel so as to face the rear window glass by a considerable distance by extending the pillar. Seat occupant protection device. 2. The rear occupant protection system for a vehicle according to claim 1, wherein the occupant protection fence is a net. 3. The occupant protection device for a rear seat of an automobile according to claim 1, wherein the occupant protection fence is constituted by an airbag which is inflatable and deployable by the drive means. 4. The rear occupant protection system for a vehicle according to claim 1, wherein the support column comprises two or more tubular bodies that are fitted to each other so as to be capable of expanding and contracting. 5. The rear passenger occupant protection system for a vehicle according to claim 1, wherein the support column comprises a foldable airbag. 6. A lid body is formed by cutting out a part of the rear parcel, and the lid body is swingable rearward of the vehicle body by an operation of a drive means based on a signal from an impact detection sensor. One end of the lid is hinged to the rear parcel, and the other end of the lid is engaged with a lock mechanism provided on the rear parcel to hold the lid closed and one end of the passenger protection fence And the other end of the occupant protection fence is fixed to the rear parcel side, and the lid is removed from the lock mechanism by the operation of the drive means to open the occupant rearward to protect the occupant. A rear seat occupant protection device for an automobile, characterized in that the fence is constructed so as to be spread on the rear parcel so as to face the rear window glass at a considerable distance. 7. An occupant protection fence is laid on the rear parcel, and one end side of the occupant protection fence is fixed to a movable shaft which is rotated by the operation of the drive means based on the signal of the impact detection sensor. The other end side is configured to be swingable toward the front side of the vehicle body, and the occupant protection fence body is swung forward toward the vehicle body by the operation of the drive means so as to face the rear window glass by a considerable distance. A rear seat occupant protection device for a vehicle, which is configured to be deployed on a rear parcel.