JP2014234132A5 - - Google Patents
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- JP2014234132A5 JP2014234132A5 JP2013118747A JP2013118747A JP2014234132A5 JP 2014234132 A5 JP2014234132 A5 JP 2014234132A5 JP 2013118747 A JP2013118747 A JP 2013118747A JP 2013118747 A JP2013118747 A JP 2013118747A JP 2014234132 A5 JP2014234132 A5 JP 2014234132A5
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- JP
- Japan
- Prior art keywords
- cleavage
- bag body
- guide plate
- lid
- airbag cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003776 cleavage reaction Methods 0.000 claims description 44
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 230000001939 inductive effect Effects 0.000 claims description 5
- 210000001138 Tears Anatomy 0.000 claims description 4
- 230000000875 corresponding Effects 0.000 claims 1
- 238000005452 bending Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000002522 swelling Effects 0.000 description 1
Description
この発明に係る車両のエアバッグカバーでは、上記課題を解決するために以下の構成を採用した。
請求項１に係る発明は、エアバッグ装置（例えば、実施形態のエアバッグ装置４）の袋体（例えば、実施形態の袋体５）の外側を覆い、前記袋体がインフレータ（例えば、実施形態のインフレータ６）のガス圧を受けて膨張展開したときに、当該袋体から押圧力を受けて破断予定部（例えば、実施形態の破断予定部１１）が破断することにより、リッド部（例えば、実施形態のリッド部１２Ａ，１２Ｂ）が車室内に開く車両のエアバッグカバーであって、前記破断予定部が、前記リッド部の回動端となるヒンジ部（例えば、実施形態のヒンジ部１３Ａ，１３Ｂ）と対向する位置にあって前記袋体から押圧力を受けたときに開裂を開始する開裂線領域（例えば、実施形態の開裂線領域１１ａ）と、当該開裂線領域の両端部から前記ヒンジ部の対応する両側の端部に向かって延在する側部破断領域（例えば、実施形態の側部破断領域１１ｂ，１１ｃ）と、を有するものにおいて、前記リッド部の前記袋体に臨む側の面のうちの、前記開裂線領域から所定距離離間した部位に基端部（例えば、実施形態の基端部１４ａ）が連結され、当該基端部から前記袋体側で前記開裂線領域方向に向かって斜めに突出する開裂誘導板（例えば、実施形態の開裂誘導板１４Ａ，１４Ｂ）と、前記開裂誘導板が前記袋体から押圧力を受けるときに、前記開裂誘導板の先端部（例えば、実施形態の先端部１４ｂ）の前記ヒンジ部から離反する方向の反力を受け止める反力受け部（例えば、実施形態の開裂誘導板１４Ｂ，１４Ａ）と、を備え、前記リッド部は、中央に共通の破断予定部の開裂線領域を挟んで略対称に一対設けられ、各リッド部の前記袋体に臨む側の面には、それぞれ前記開裂誘導板の基端部が連結され、前記各リッド部の開裂誘導板の先端部が相互に当接可能に配置され、各開裂誘導板の先端部が、前記袋体から押圧力を受けたときに相互に相手開裂誘導板の反力を受け止める前記反力受け部となることを特徴とするものである。
これにより、衝突時等にインフレータのガス圧を受けて袋体が膨出展開すると、袋体が一対のリッド部の開裂誘導板の先端部に当接して、両開裂誘導板の先端部を押圧する。一対の開裂誘導板は、こうして袋体から押圧力を受けると、先端部同士で当接して各ヒンジ部から離反する方向の反力を相互に受け止めつつ、リッド部に重なる方向に変位する。この間各開裂誘導板には先端部から基端部に向かう分力が作用する。この分力は、各リッド部の開裂線領域での開裂を促進するとともに、各リッド部の車室内側への不要な膨出を抑制する。
The vehicle airbag cover according to the present invention employs the following configuration in order to solve the above problems.
The invention according to claim 1 covers the outside of the bag body (for example, the bag body 5 of the embodiment) of the airbag apparatus (for example, the airbag apparatus 4 of the embodiment), and the bag body is an inflator (for example, the embodiment). When the inflator 6) is inflated and deployed under the gas pressure of the inflator 6), the lid portion (e.g., The lid portions 12A and 12B) of the embodiment are vehicle airbag covers that open into the vehicle compartment, and the planned break portion is a hinge portion that serves as a pivot end of the lid portion (for example, the hinge portion 13A of the embodiment) 13B) and a tear line region (for example, the tear line region 11a of the embodiment) that starts the cleavage when receiving a pressing force from the bag body, and the hinges from both ends of the tear line region. Pair of parts A side break region (for example, the side break regions 11b and 11c of the embodiment) extending toward the ends on both sides of the lid, A base end portion (for example, the base end portion 14a of the embodiment) is connected to a portion spaced apart from the cleavage line region by a predetermined distance, and obliquely toward the cleavage line region from the base end portion toward the bag body side. A protruding cleavage guide plate (for example, the cleavage guide plates 14A and 14B of the embodiment) and a tip portion of the cleavage guide plate (for example, the tip of the embodiment) when the cleavage guide plate receives a pressing force from the bag body. reaction force receiving portion for receiving the reaction force in the direction away from the hinge parts 14b) (e.g., cleavage-inducing plate 14B of the embodiment, example Preparations and 14A), the said lid part is common tearable in the center Approximately across the cleavage line region A pair of bases of the cleavage guide plates are connected to surfaces of the lid portions facing the bag body, and the tip portions of the cleavage guide plates of the lid portions are in contact with each other. The tip of each cleavage guide plate is configured to be the reaction force receiving portion that receives the reaction force of the counterpart cleavage guide plate when receiving a pressing force from the bag body. is there.
As a result, when the bag body bulges and expands due to the gas pressure of the inflator at the time of a collision or the like, the bag body comes into contact with the leading ends of the cleavage guide plates of the pair of lid portions and presses the leading ends of the two splitting guide plates. To do. When receiving a pressing force from the bag body in this way, the pair of cleavage guide plates are displaced in a direction overlapping the lid portion while receiving the reaction forces in the direction in which the tip portions abut against each other and separate from the hinge portions. During this time, a component force from the distal end portion to the proximal end portion acts on each cleavage guide plate. This component force promotes the cleavage of each lid portion in the cleavage line region and suppresses unnecessary bulging of each lid portion toward the vehicle interior side.
請求項３に係る発明は、請求項１または２に係る車両のエアバッグカバーにおいて、一対の開裂誘導板の先端部同士は、破断可能な薄肉片（例えば、実施形態の薄肉片１５）によって相互に連結されていることを特徴とするものである。
この場合、一対の開裂誘導板の先端部同士は、組付時には、薄肉片によって相互に連結されているが、衝突時等にインフレータのガス圧を受けて袋体が膨張展開するときには袋体からの押圧力を受けて破断する。したがって、組付時や、袋体が膨張展開しない状況では、各開裂誘導板ががたつきなく安定した状態に維持される。
According to a third aspect of the present invention, in the airbag cover of the vehicle according to the first or second aspect , the tip portions of the pair of cleavage guide plates are mutually connected by a thin piece (for example, the thin piece 15 of the embodiment) that can be broken. It is characterized by being connected to.
In this case, the ends of the pair of cleavage guide plates are connected to each other by thin-walled pieces at the time of assembly, but when the bag body is inflated and deployed due to the gas pressure of the inflator at the time of a collision or the like, Breaks under the pressure of. Therefore, at the time of assembly or in a situation where the bag body does not expand and deploy, each cleavage guide plate is maintained in a stable state without rattling.
請求項４に係る発明は、請求項３に係る車両のエアバッグカバーにおいて、前記開裂誘導板の先端部同士の連結部の前記袋体に臨む側の面は、前記開裂誘導板の外面に滑らかに連続する曲面によって形成されていることを特徴とするものである。
これにより、袋体の膨張展開時には、袋体は開裂誘導板の先端部同士の連結部の曲面に当接することになる。このため、袋体には損傷等が生じにくくなる。
According to a fourth aspect of the present invention, in the air bag cover for the vehicle according to the third aspect, a surface of the connecting portion between the front end portions of the cleavage guide plate facing the bag body is smooth on an outer surface of the cleavage guide plate. It is characterized by being formed by a curved surface that is continuous.
Thereby, at the time of expansion | swelling expansion | deployment of a bag body, a bag body will contact | abut to the curved surface of the connection part of the front-end | tip parts of a cleavage guide plate. For this reason, damage and the like are less likely to occur in the bag body.
請求項５に係る発明は、請求項１〜４のいずれか１項に係る車両のエアバッグカバーにおいて、前記開裂誘導板の側辺の前記袋体に臨む領域には曲面状の面取り部（例えば、実施形態の面取り部４０）が設けられていることを特徴とするものである。
これにより、袋体の膨張展開時に、袋体が開裂誘導板の側辺に当接した場合にも、その側辺には曲面状の面取り部が設けられているため、袋体には損傷等が生じにくくなる。
The invention according to claim 5 is the airbag cover of the vehicle according to any one of claims 1 to 4 , wherein a curved chamfered portion (for example, a region facing the bag body on the side of the cleavage guide plate) The chamfered portion 40) of the embodiment is provided.
As a result, even when the bag body abuts on the side of the cleavage guide plate when the bag is inflated and deployed, a curved chamfered portion is provided on the side, so that the bag is not damaged. Is less likely to occur.
請求項６に係る発明は、請求項１〜５のいずれか１項に係る車両のエアバッグカバーにおいて、前記リッド部には、前記開裂誘導板の基端部の幅方向外側に肉抜き部（例えば、実施形態の切欠き部１７の略円形領域１７ｂ）が設けられていることを特徴とするものである。
これにより、リッド部上の開裂誘導板の基端部との連結部の剛性が肉抜き部によって低く維持され、袋体の膨張展開時に開裂誘導板の先端部に袋体から押圧力が付与されたときには、開裂誘導板の基端部の撓み変形がより容易になる。
According to a sixth aspect of the present invention, in the airbag cover of the vehicle according to any one of the first to fifth aspects, the lid portion includes a lightening portion (outside in a width direction of a base end portion of the cleavage guide plate). For example, a substantially circular region 17b) of the notch portion 17 of the embodiment is provided.
As a result, the rigidity of the connecting portion with the base end portion of the cleavage guide plate on the lid portion is kept low by the cutout portion, and a pressing force is applied from the bag body to the distal end portion of the cleavage guide plate when the bag body is inflated and deployed. In this case, the bending deformation of the base end portion of the cleavage guide plate becomes easier.
なお、この発明は上記の実施形態に限定されるものではなく、その要旨を逸脱しない範囲で種々の設計変更が可能である。
In addition, this invention is not limited to said embodiment, A various design change is possible in the range which does not deviate from the summary .
Claims (6)
前記破断予定部が、前記リッド部の回動端となるヒンジ部と対向する位置にあって前記袋体から押圧力を受けたときに開裂を開始する開裂線領域と、当該開裂線領域の両端部から前記ヒンジ部の対応する両側の端部に向かって延在する側部破断領域と、を有するものにおいて、
前記リッド部の前記袋体に臨む側の面のうちの、前記開裂線領域から所定距離離間した部位に基端部が連結され、当該基端部から前記袋体側で前記開裂線領域方向に向かって斜めに突出する開裂誘導板と、
前記開裂誘導板が前記袋体から押圧力を受けるときに、前記開裂誘導板の先端部の前記ヒンジ部から離反する方向の反力を受け止める反力受け部と、を備え、
前記リッド部は、中央に共通の破断予定部の開裂線領域を挟んで略対称に一対設けられ、
各リッド部の前記袋体に臨む側の面には、それぞれ前記開裂誘導板の基端部が連結され、
前記各リッド部の開裂誘導板の先端部が相互に当接可能に配置され、
各開裂誘導板の先端部が、前記袋体から押圧力を受けたときに相互に相手開裂誘導板の反力を受け止める前記反力受け部となることを特徴とする車両のエアバッグカバー。 Covering the outside of the bag body of the airbag device, and when the bag body is inflated and deployed under the gas pressure of the inflator, the lid portion is A vehicle airbag cover that opens indoors,
The break line region is located at a position facing the hinge portion serving as the rotation end of the lid portion and starts to break when receiving a pressing force from the bag body, and both ends of the break line region A side break region extending from the portion toward the corresponding ends on both sides of the hinge portion,
A base end portion is connected to a portion of the surface of the lid portion facing the bag body at a predetermined distance from the tear line region, and from the base end portion toward the split line region on the bag body side. A cleavage guide plate projecting diagonally
When the cleavage-inducing plate is subjected to pressing force from the bag, Bei example and a reaction force receiving portion for receiving the reaction force in the direction away from the hinge portion of the distal end portion of the cleavage-inducing plate,
A pair of the lid portions are provided substantially symmetrically across the cleavage line region of the common fracture planned portion at the center,
The base end portion of the cleavage guide plate is connected to the surface of each lid portion facing the bag body,
The front ends of the cleavage guide plates of the lid portions are arranged so as to be able to contact each other,
The airbag cover for a vehicle according to claim 1, wherein the front end portion of each cleavage guide plate serves as the reaction force receiving portion that receives the reaction force of the counterpart cleavage guide plate when receiving a pressing force from the bag body .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013118747A JP6069106B2 (en) | 2013-06-05 | 2013-06-05 | Vehicle airbag cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013118747A JP6069106B2 (en) | 2013-06-05 | 2013-06-05 | Vehicle airbag cover |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2014234132A JP2014234132A (en) | 2014-12-15 |
| JP2014234132A5 true JP2014234132A5 (en) | 2015-11-05 |
| JP6069106B2 JP6069106B2 (en) | 2017-01-25 |
Family
ID=52137136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2013118747A Active JP6069106B2 (en) | 2013-06-05 | 2013-06-05 | Vehicle airbag cover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP6069106B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017103590B3 (en) | 2017-02-22 | 2018-07-12 | Lisa Dräxlmaier GmbH | METHOD FOR PRODUCING A SKIN-FOAM-SUPPORT COMPONENT FOR A MOTOR VEHICLE AND A SKIN-CARRIER-COMPOSITE COMPONENT FOR A MOTOR VEHICLE |
| GB2570456B (en) * | 2018-01-24 | 2020-06-17 | Ford Global Tech Llc | Vehicle trim panel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6089642A (en) * | 1998-03-09 | 2000-07-18 | Lear Automotive Dearborn, Inc. | Instrument panel seamless airbag cover |
| JP2001088646A (en) * | 1999-09-22 | 2001-04-03 | Mitsuboshi Belting Ltd | Air bag door structure |
-
2013
- 2013-06-05 JP JP2013118747A patent/JP6069106B2/en active Active
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