JP2002172994A - Curtain type occupant crash protection device for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain type occupant crash protection device for automobile having a less projected amount to a cabin side and an increased attractiveness. SOLUTION: This curtain type occupant crash protection device comprises an inflator disposed at the specified portion of a body and jetting gas at the time of a side collision acting a big load on the body, an air bag 5 stored in a body panel 2 in the folded state on the cabin side thereof and inflatable in curtain shape to the side part of the cabin by the gas fed from the inflator, and an energy absorbing member 6 for covering the air bag 5. A plurality of ribs 8 are installed projectedly on the surface of the energy absorbing member 6 on the air bag 5 side, and the air bag 5 is supportedly positioned between the ribs 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As a conventional curtain-type vehicle occupant protection device, for example, as disclosed in Japanese Patent Application Laid-Open No. 10-138861, a roof rail portion above a side door opening which is a vehicle body panel and an opening for a front wind panel are disclosed. The airbag is disposed in a state of being elongated and folded over the front pillar portion on the side of the vehicle, and is housed between each vehicle body panel and the interior material. Describing in more detail, the elongated and folded airbag is provided in a case, and the case is sandwiched by energy absorbing members. The energy absorbing member is provided in a space between the energy absorbing member and the interior material. The energy absorbing member includes a plurality of ribs having a direction perpendicular to the longitudinal direction (crossing direction) as a plane direction and a plurality of ribs arranged at predetermined regular intervals along the longitudinal direction of the interior material. An energy absorbing member is provided that is connected to each other by a pair of connecting plates that are arranged in a plane direction and are substantially opposed to each other in the front and rear directions. A separate energy absorbing member is provided between the case and the vehicle body panel.

[0003]

However, in such a conventional mounting structure, the overall thickness (height) of the case and both energy absorbing members is the same as that of the interior material, body panel, As a result, the position where the interior material is disposed protrudes toward the interior of the vehicle compartment, which may deteriorate the appearance and narrow the interior space of the vehicle.

The present invention has been made by paying attention to such a conventional technique, and provides a curtain-type vehicle occupant protection device which has a small amount of protrusion into a vehicle interior and has an improved appearance. .

[0005]

According to the first aspect of the present invention,
An inflator that is disposed at a predetermined portion of the vehicle body and that blows out gas at the time of a side collision where a high load acts, and a side portion in the vehicle interior that is stored in a folded state on the vehicle room side of the vehicle body panel and supplied from the inflator. In a curtain-type vehicle occupant protection device comprising at least an airbag capable of being inflated into a curtain shape and an energy absorbing member covering the airbag, the surface of the energy absorbing member on the airbag side includes: A plurality of ribs are protruded, and the airbag enters and is supported between the ribs.

According to the first aspect of the present invention, a plurality of ribs are protruded from a surface of the energy absorbing member on the side of the airbag, and the airbag enters between the ribs. As a result, the storage space for the airbag can be reduced, and the interior space of the vehicle is not reduced.

According to a second aspect of the present invention, there is provided the curtain-type vehicle occupant protection device according to the first aspect, wherein a decorative member is covered on a vehicle interior side of the energy absorbing member.

According to the second aspect of the present invention, even if a sink occurs on the surface of the energy absorbing member on the vehicle interior side where the plurality of ribs are formed on the surface of the energy absorbing member on the airbag side. In addition, by being covered with the decorative member, the appearance is not impaired even when sinkage occurs due to the increased protrusion amount of the rib.

According to a third aspect of the present invention, there is provided a curtain-type vehicle occupant protection device according to the first or second aspect,
A plurality of ribs are protruded from a surface of the body panel on the side of the airbag, and the airbag enters and is supported between the ribs.

According to the third aspect of the present invention, the tuning of the absorption value in shock absorption can be easily performed by both ribs.

According to a fourth aspect of the present invention, there is provided a curtain-type vehicle occupant protection device according to any one of the first to third aspects, wherein upper and lower terminals of the airbag are restrained by wrapping. .

According to the fourth aspect of the invention, since the airbag is restrained by wrapping during assembly, the airbag is less likely to lose its shape, and the workability of mounting the airbag on the vehicle body is significantly improved.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show a first embodiment of the present invention. The curtain-type vehicle occupant protection device according to the first embodiment includes an inflator (not shown) that is disposed at a predetermined portion of a vehicle body, for example, is disposed at a root of the front pillar 1 and that blows out gas at the time of a side collision where a high load acts. Inner panel 2 of side roof rail 2 as "panel"
a) an airbag 5 which is stored in a folded state on the side of the vehicle interior 3 and is inflatable in a curtain shape on the side of the vehicle interior 3, that is, on the side of the door opening 4 by gas supplied from the inflator; The cabin 3 of the airbag 5
An energy absorbing member 6 that covers the airbag 5 by being provided on the inner panel 2a of the side roof rail 2 with bolts 11 and an end 6a of the energy absorbing member 6; And a decorative member 7 covering the same.

A plurality of impact energy absorbing ribs 8 are provided on a surface 6b of the energy absorbing member 6 on the side where the airbag 5 is disposed, and project in parallel along the longitudinal direction. The airbag 5 enters between the ribs 8 and the ribs 8 and is supported. That is, the surface 6b of the energy absorbing member 6 on the side where the rib 8 is formed is placed up, and the airbag 5 folded in a bellows shape so as to have a substantially width dimension of the decorative member 7 is placed thereon. . Next, using an exclusive jig, the airbag 5 is pushed between the ribs 8 and stored. At this time, if the airbag 5 is pushed too far, the folded portions of the adjacent airbags 5 housed between the ribs 8 are pressed against each other when the airbag 5 is deployed, so that the smooth deployment when the airbag 5 is inflated and deployed. You can't.

Numeral 9 denotes wrapping with cloth or paper coated with a resin or the like. The opening 9a at the end is formed at the end of the decorative member 7 and the end of the energy absorbing member 6 is formed. By hooking on the projection 6f formed in the airbag 6a, the airbag 5 can be mounted or transported.
Is restrained in a folded state. The wrapping 9 has a slit (not shown) that can be broken by the inflation force of the airbag 5 so that the airbag 5 can be deployed toward the vehicle interior 3 when the airbag 5 is inflated and deployed.

The side roof rail 2 includes the inner panel 2a and the outer panel 2b, and supports the roof panel 12. The door opening 4 includes a front door opening 4 a including the front pillar 1, the side roof rail 2, and the center pillar 13, and a rear door including the center pillar 13, the side roof rail 2, and the rear pillar 14. Side door opening 4b,
If an inflator is provided on the front pillar 1 side, the front door opening 4a is indispensable, and the airbag 5 may reach the rear opening 4b, or if the inflator is provided on the rear pillar 14 side, The door opening 4b on the side is indispensable, and the airbag 5 may reach the opening 4a on the front side.

A surface 7b of the decorative member 7 on the airbag 5 side.
Is formed with a caulking pin 10 and is held through a through hole 6c formed in the energy absorbing member 6, so that even if the airbag 5 is inflated and deployed,
Will not fall off the energy absorbing member 6. Further, the decorative member 7 itself may have a multilayer structure in which an elastomer resin such as TPO or a soft vinyl chloride resin is integrally molded on the surface. Alternatively, natural leather, synthetic leather, or the like may be bonded or insert-molded, or a polypropylene resin or a polycarbonate / ABS composite (alloy) resin alone may be used. On the surface of the elastomer resin or the polypropylene resin or the like, fine irregularities (texture) imitating leather may be formed, or a smooth or textured grain print (for example, hydraulic transfer printing) or painting may be applied. Good. For the coating, a paint containing mica powder or leather powder (collagen powder) can be used.

Reference numeral 15 denotes a molded ceiling, the end of which is held by the upper end 7c of the decorative member 7. Reference numeral 16 denotes a garnish fitted to an outer flange of the inner panel 2a and the outer panel 2b of the side roof rail 2, and a lip 16a protruding from the garnish 16 fixes a lower end 7d of the decorative member 7. Covering. At the lower end 7d, the energy absorbing member 6
Is held at the opposite end 6e.

According to the first embodiment, a plurality of ribs 8 project from the surface 6b of the energy absorbing member 6 on the side of the airbag 5, and the air is interposed between the ribs 8. Since the bag 5 is inserted and supported, the storage space of the airbag 5 can be reduced, and the three interior spaces of the vehicle are not reduced. In addition, the sink 6 due to the molding of the ribs 8 occurs on the surface 6d of the energy absorbing member 6 on the side of the vehicle interior 3 where the plurality of ribs 8 are formed on the surface 6b of the energy absorbing member 6 on the airbag 5 side. Even
Since the "fin" is covered with the decorative member 7, the appearance is not impaired. Therefore, in the case where the protrusion amount of the rib 8 is close to the limit value at which "sink" does not occur, the appearance is not impaired even if "sink" occurs by increasing the protrusion amount of the rib 8 when the rib 8 cannot withstand an impact. become.

Since the airbag 5 is restrained by the wrapping 9 during assembly, the airbag 5 is less likely to lose its shape, and the workability of mounting the airbag 5 on the side roof rail 2 is significantly improved.

Accordingly, when gas is supplied from the inflator to the airbag 5 and the airbag 5 is inflated and deployed, the wrapping 9 engaged with the projections 7a and 6f is released, and the end 7d is moved from the garnish 16 to the garnish 16. The airbag 5 is opened and released from the protruding lip 16a, so that the occupant can be protected from impact energy due to a side collision.

FIGS. 3 and 4 show a second embodiment of the present invention. The main difference between the second embodiment and the first embodiment is that there is no decorative member 7.

That is, this curtain-type vehicle occupant protection system is provided with a predetermined portion of a vehicle body, for example, a front pillar 1 (FIG. 1).
(See FIG. 2), and an inflator (not shown) that blows out gas at the time of a side collision where a high load is applied, and is folded and housed in the vehicle interior 3 side of the inner panel 2a of the side roof rail 2 and supplied from the inflator. The side of the vehicle interior 3, that is, the door opening 4
(See FIG. 1) An airbag 5 which is inflatable in a curtain shape on the side, and a bolt 6 is provided on the inner panel 2a of the side roof rail 2 which is disposed on the side of the vehicle interior 3 of the airbag 5 and has an end 6a. An energy absorbing member 6 that covers the airbag 5 by being supported by 11.

On the surface 6b of the energy absorbing member 6 on the side where the airbag 5 is disposed, a plurality of ribs 8 for absorbing impact energy are projected in parallel along the longitudinal direction. The airbag 5 enters between the ribs 8 and the ribs 8 and is supported. That is, the airbag 5 is placed with the surface 6b of the energy absorbing member 6 on the side where the rib 8 is formed facing upward, and the airbag 5 folded in a bellows shape so as to have a substantially width dimension of the energy absorbing member 6 from above. I do. Next, using an exclusive jig, the airbag 5 is pushed between the ribs 8 and stored. At this time, if the airbag 5 is pushed too much, the folded portions of the adjacent airbags 5 housed between the ribs 8 are pressed against each other when the airbag 5 is deployed, and the airbag 5 is smoothly deployed when inflated and deployed. You can't.

The opening 9a at the end of the wrapping 9 is hooked on the projections 6f, 6g formed on both ends 6a, 6e of the energy absorbing member 6, so that the airbag 5 can be folded during mounting and transportation. Being restrained in a state. The wrapping 9 has a slit (not shown) that can be broken by the inflation force of the airbag 5 so that the airbag 5 can be deployed toward the vehicle interior 3 when the airbag 5 is inflated and deployed.
On the surface 6d of the energy absorbing member 6 on the vehicle interior 3 side, fine irregularities (textures) imitating leather may be formed, or a smooth or textured grain print (for example, hydraulic transfer printing), painting May be applied. For the coating, a paint containing mica powder or leather powder (collagen powder) can be used.

According to the second embodiment, a plurality of ribs 8 project from the surface 6b of the energy absorbing member 6 on the side of the airbag 5, and the air is interposed between the ribs 8. Since the bag 5 is inserted and supported, the storage space of the airbag 5 can be reduced, and the three interior spaces of the vehicle are not reduced.

Accordingly, when gas is supplied from the inflator to the airbag 5 and the airbag 5 is inflated and deployed, the projection 6g engaged with the wrapping 9 is released, and
The lip 16 whose end 6e protrudes from the garnish 16
a, and opened as shown in FIG.
Can be expanded and deployed to protect the occupant from impact energy due to side collisions.

FIGS. 5 and 6 are views showing a third embodiment of the present invention. The main differences between the third embodiment and the first embodiment are that there is no decorative member 7 and that the ribs also protrude from the inner panel 2a side of the side roof rail 2.

That is, this curtain-type vehicle occupant protection system is provided with a predetermined portion of a vehicle body, for example, a front pillar 1 (FIG. 1).
(See FIG. 2), and an inflator (not shown) that blows out gas at the time of a side collision where a high load is applied, and is folded and housed in the vehicle interior 3 side of the inner panel 2a of the side roof rail 2 and supplied from the inflator. The side of the vehicle interior 3, that is, the door opening 4
(See FIG. 1) An airbag 5 which is inflatable in a curtain shape on the side, and a bolt 6 is provided on the inner panel 2a of the side roof rail 2 which is disposed on the side of the vehicle interior 3 of the airbag 5 and has an end 6a. An energy absorbing member 6 supported by the airbag 5 to cover the airbag 5, and a wrapping 20 made of a synthetic resin plate material disposed on the inner panel 2 a of the side roof rail 2 on the side of the airbag 5. And

The wrapping 20 is fixed to the inner panel 2a by the bolts 11 and the airbag 5
A plurality of impact energy absorbing ribs 21 project in parallel from the side surface along the longitudinal direction, and the airbag 5 enters and is supported between the ribs 21. The airbag 5 of the energy absorbing member 6
A plurality of ribs 8 for absorbing impact energy are protruded in parallel along the longitudinal direction on the surface 6b on which the airbag 5 is disposed, and the airbag 5 is provided between the ribs 8. It gets in and is supported.

That is, the airbag 5 is placed with the surface 6b of the energy absorbing member 6 on the side where the ribs 8 are formed facing upward, and folded in a bellows-like shape from above the energy absorbing member 6 so as to have a substantially width dimension. Is placed. Next, by using the rib 21 of the wrapping 20 to push the airbag 5 between the ribs 8, the ribs 8 and 21 are housed so as to mesh with each other.

The end 6e of the energy absorbing member 6 is held by a lip 16a of the garnish 16. On the surface 6d of the energy absorbing member 6 on the vehicle interior 3 side, fine irregularities (textures) imitating leather may be formed, or a smooth or textured grain print (for example, hydraulic transfer printing), painting May be applied. For the coating, a paint containing mica powder or leather powder (collagen powder) can be used.

According to the third embodiment, the plurality of ribs 8 projecting from the surface 6b of the energy absorbing member 6 on the airbag 5 side and the ribs 8 projecting from the surface of the wrapping 20 on the airbag 5 side. Since the airbag 5 is inserted and supported between the plurality of ribs 21 provided, the storage space for the airbag 5 can be reduced, and the three interior spaces of the vehicle are not reduced. Further, the tuning of the absorption value in the shock absorption is performed by the ribs 8 and 2 on both sides.
One can easily do this.

Accordingly, when gas is supplied from the inflator to the airbag 5 and the airbag 5 is inflated and deployed, the end 6e of the energy absorbing member 6 is moved to the garnish 16
As shown in FIG. 6, the airbag 5 is inflated and deployed between the ribs 8 and 21 to protect the occupant from impact energy due to a side collision.

FIGS. 7 and 8 show a fourth embodiment of the present invention. The fourth embodiment is mainly different from the first embodiment in that the molded ceiling covers an airbag or the like.

That is, this curtain-type vehicle occupant protection system includes a predetermined portion of a vehicle body, for example, a front pillar 1 (FIG. 1).
(See FIG. 2), and an inflator (not shown) that blows out gas at the time of a side collision where a high load is applied, and is folded and housed in the vehicle interior 3 side of the inner panel 2a of the side roof rail 2 and supplied from the inflator. The side of the vehicle interior 3, that is, the door opening 4
(See FIG. 1) The airbag 5 is inflatable into a curtain shape on the side, and a synthetic resin plate material is disposed on the inner panel 2 a of the side roof rail 2 on the side of the airbag 5. A wrapping 20 and a second wrapping 2 which is disposed on the side of the airbag 5 on the vehicle interior 3 side and is locked to an end 20 a of the wrapping 20.
5

The wrapping 20 is fixed to the inner panel 2a by the bolts 11 and the airbag 5
A plurality of impact energy absorbing ribs 21 project in parallel from the side surface along the longitudinal direction, and the airbag 5 enters and is supported between the ribs 21.

That is, the airbag 5 folded in a bellows shape so as to have a substantially width dimension of the wrapping 20 is placed on the rib 21 of the wrapping 20. Next, the second wrapping 25 is locked to the projection 20a of the wrapping 20,
Unitized. The second wrapping 25 has a slit (not shown) that can be broken by the inflation force of the airbag 5 so that the airbag 5 can be deployed toward the vehicle interior 3 when the airbag 5 is inflated and deployed.

Reference numeral 26 denotes a molded ceiling.
Is held by the lip 16a of the garnish 16. That is, since the airbag 5 and the like constrained by the second wrapping 25 are covered by the molded ceiling 26, they are kept invisible from the vehicle interior 3. On the surface of the molded ceiling 26 on the side of the cabin 3, fine irregularities (texture) imitating leather may be formed, or grainy printing (for example, hydraulic transfer printing) or painting may be applied to a smooth or textured surface. You may. For the coating, a paint containing mica powder or leather powder (collagen powder) can be used.

According to the fourth embodiment, the airbag 5 enters and is supported between the plurality of ribs 21 protruding from the surface of the wrapping 20 on the airbag 5 side. The storage space for the airbag 5 can be reduced, and the three interior spaces of the vehicle are not reduced.

Accordingly, when gas is supplied from the inflator to the airbag 5 and the airbag 5 is inflated and deployed, the slit of the second wrapping 25 is broken, and the projection 20a at the end of the wrapping 20 is connected to the garnish 1.
8, the airbag 5 is opened and separated from the lip 16a projecting from the airbag 6, and the airbag 5 is inflated and deployed from between the ribs 21 to protect the occupant from impact energy due to a side collision.

[0043]

According to the first aspect of the present invention, a plurality of ribs are provided on a surface of the energy absorbing member on the airbag side, and the airbag is provided between the ribs. Is supported by the airbag, so that the storage space for the airbag can be reduced, and the interior space of the vehicle is not reduced.

According to the second aspect of the present invention, even when sinking occurs on the surface of the energy absorbing member on the vehicle interior side where the plurality of ribs provided on the surface of the energy absorbing member on the airbag side are formed. In addition, by being covered with the decorative member, the appearance is not impaired even when sinkage occurs due to the increased protrusion amount of the rib.

According to the third aspect of the invention, the tuning of the absorption value in the shock absorption can be easily performed by both the ribs.

According to the fourth aspect of the invention, since the airbag is restrained by wrapping during assembly, the airbag is less likely to lose its shape, and the workability of mounting the airbag on the vehicle body is significantly improved.

[Brief description of the drawings]

FIG. 1 is a transparent perspective view showing a curtain-type automobile occupant protection device according to a first embodiment of the present invention.

FIG. 2 is a sectional view taken along the line aa of FIG. 1;

FIG. 3 is a sectional view corresponding to FIG. 2, showing a curtain-type vehicle occupant protection device according to a second embodiment of the present invention.

4 is a sectional view corresponding to FIG. 2 when the airbag of FIG. 3 is inflated and deployed.

FIG. 5 is a sectional view corresponding to FIG. 2, showing a curtain-type vehicle occupant protection device according to a third embodiment of the present invention.

6 is a sectional view corresponding to FIG. 2 when the airbag in FIG. 5 is inflated and deployed.

FIG. 7 is a sectional view corresponding to FIG. 2, showing a curtain-type vehicle occupant protection device according to a fourth embodiment of the present invention.

8 is a sectional view corresponding to FIG. 2 when the airbag of FIG. 7 is inflated and deployed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Predetermined part of vehicle body, for example, front pillar 2 Side roof rail as "body panel" 2a Inner panel of side roof rail 3 Car interior 4 Door opening 5 Airbag 6 Energy absorbing member 6a End of energy absorbing member 7 Makeup member 8 Impact energy Ribs for absorption 9, 20 Wrapping 21 Ribs

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kazuo Matsuyama 218 Aoshima-cho, Fuji City, Shizuoka Prefecture Inside Japan Plastics Co., Ltd. 72) Inventor Takeshi Watanabe 218 Aoshima-cho, Fuji-shi, Shizuoka Prefecture, Japan Plastic Co., Ltd. 218 Aoshima-cho, Fuji-shi, Japan Plastic Co., Ltd. (72) Inventor Yasumasa Horizumi 218 Aoshima-cho, Fuji-shi, Shizuoka Japan F-term (reference) 3D023 BA01 BB02 BD10 BE24 3D054 AA07 AA18 AA20 BB21

Claims (4)

[Claims] 1. An inflator which is disposed at a predetermined portion of a vehicle body and injects gas at the time of a side collision on which a high load acts, and which is stored in a folded state in a vehicle room side of a vehicle body panel and supplied by the gas supplied from the inflator. A curtain-type vehicle occupant protection device including at least a side airbag inflatable in a vehicle interior and inflatable in a curtain shape, and an energy absorbing member covering the airbag. A curtain type vehicle occupant protection device, characterized in that a plurality of ribs are protruded from a surface of the vehicle and the airbag is inserted and supported between the ribs. 2. The curtain-type automobile occupant protection device according to claim 1, wherein a decorative member is covered on the interior side of the energy absorbing member. Protective equipment. 3. The curtain-type vehicle occupant protection device according to claim 1, wherein a plurality of ribs protrude from a surface of the vehicle body panel on the airbag side. A curtain-type vehicle occupant protection device, wherein the airbag enters and is supported between the airbag and a rib. 4. The curtain type vehicle occupant protection device according to claim 1, wherein upper and lower terminals of the airbag are restrained by wrapping. Type car occupant protection system.