JP2010228677A5

JP2010228677A5 -

Info

Publication number: JP2010228677A5
Application number: JP2009080516A
Authority: JP
Filing date: 2009-03-27
Publication date: 2011-12-22
Anticipated expiration: 2029-03-27

Description

上記目的を達成するため請求項１の二輪車用エアバック装置は、前方側より、前輪（ＷＦ）、ステアリング（７）を回動自在に支持するヘッドパイプ（２ａ）、乗員が乗車するシート（９）、後輪（ＷＲ）が配設される二輪車両に対して、車両に印加される加速度を検知する加速度センサ（５０）と、エアバックを膨張させるインフレータと、前記加速度センサ（５０）からの検知信号が所定値を超えた場合に前記インフレータを作動させる制御部（５５）を備えたエアバック装置において、次の構成を含むことを特徴としている。
前記ヘッドパイプ（２ａ）の前方かつ下方、さらに前記前輪（ＷＦ）の上方で囲まれる空間内で展開可能な第１のエアバック（３０）を備える。
請求項２は、請求項１の二輪車用エアバック装置において、前記車両側に固定されると共に車両の前方に向かって延出する支えプレート（２０）を備え、前記第１のエアバック（３０）は、前記支えプレート（２０）の下方と前記前輪（ＷＦ）との間に設けられている。 In order to achieve the above object, the airbag apparatus for a motorcycle according to claim 1 includes, from the front side, a head pipe (2a) that rotatably supports the front wheels (WF) and the steering (7), and a seat (9 ), For a two-wheeled vehicle in which a rear wheel (WR) is disposed, an acceleration sensor (50) for detecting acceleration applied to the vehicle, an inflator for inflating an airbag, and the acceleration sensor (50) An airbag apparatus including a control unit (55) that operates the inflator when a detection signal exceeds a predetermined value includes the following configuration.
A first airbag (30) is provided that can be deployed in a space surrounded by a front and a lower side of the head pipe (2a) and an upper side of the front wheel (WF).
According to a second aspect of the present invention, in the airbag apparatus for a motorcycle according to the first aspect, the first airbag (30) includes a support plate (20) that is fixed to the vehicle side and extends toward the front of the vehicle. Is provided between the lower side of the support plate (20) and the front wheel (WF).

請求項３は、請求項２の二輪車用エアバック装置において、前記支えプレート（２０）は、前記ステアリング（７）よりも前方に配置されたことを特徴としている。 According to a third aspect of the present invention, in the airbag apparatus for a motorcycle according to the second aspect , the support plate (20) is disposed in front of the steering (7).

請求項４は、請求項２又は請求項３の二輪車用エアバック装置において、前記支えプレート（２０）よりも乗員側に第２のエアバック（４０）を設けたことを特徴としている。 According to a fourth aspect of the present invention, in the airbag apparatus for a motorcycle according to the second or third aspect , the second airbag (40) is provided closer to the occupant side than the support plate (20).

請求項５は、請求項４の二輪車用エアバック装置において、前記制御部（５５）は、前記加速度センサ（５０）からの出力値が所定値を超えた場合に、前記第１のエアバック（３０）を先に膨張させた後、前記第２のエアバック（４０）を膨張させることを特徴としている。 According to a fifth aspect of the present invention, in the airbag apparatus for a motorcycle according to the fourth aspect , when the output value from the acceleration sensor (50) exceeds a predetermined value, the control unit (55) 30) is first inflated, and then the second airbag (40) is inflated.

請求項６は、請求項２の二輪車用エアバック装置において、前記支えプレート（２０）は、ヘッドパイプ（２ａ）に取り付けられたことを特徴としている。 According to a sixth aspect of the present invention, in the airbag apparatus for a motorcycle according to the second aspect , the support plate (20) is attached to the head pipe (2a).

請求項７は、請求項２ないし請求項５のいずれか１項に記載の二輪車用エアバック装置において、前記支えプレート（２０）は、車両の前方に装着されるカバー部材（１０）により覆われていることを特徴としている。 According to a seventh aspect of the present invention, in the motorcycle airbag device according to any one of the second to fifth aspects, the support plate (20) is covered by a cover member (10) mounted in front of the vehicle. It is characterized by having.

請求項８は、請求項６又は請求項７の二輪車用エアバック装置において、前記支えプレート（２０）は、前記ヘッドパイプ（２ａ）の近傍では他の部分より幅狭に形成されたことを特徴としている。 Claim 8 is the airbag device for a motorcycle according to claim 6 or claim 7, wherein the support plate (20), characterized in that it is formed narrower than the other portions in the vicinity of the head pipe (2a) It is said.

請求項１の構成によれば、二輪車が対象物に接触した時に、第１のエアバック（３０）がヘッドパイプ（２ａ）の前方かつ下方、さらに前記前輪（ＷＦ）の上方で囲まれる空間内で膨張して展開する。
請求項２の構成によれば、支えプレート（２０）の下方と前輪（ＷＦ）との間で第１のエアバッグ（３０）が膨張して展開する。したがって、第１のエアバック（３０）を介して接触した対象物（６０）の外力を支えプレート（２０）にて有効に受け止めることが可能となるので、車両前方に展開するエアバック（３０）を有効に機能させることが可能となる。 According to the configuration of the first aspect, when the two-wheeled vehicle comes into contact with an object, the first airbag (30) is enclosed in the front and the lower side of the head pipe (2a) and further above the front wheel (WF). Inflates and expands.
According to the configuration of the second aspect , the first airbag (30) is inflated and deployed between the lower portion of the support plate (20) and the front wheel (WF). Accordingly, the external force of the object (60) that has contacted via the first airbag (30) can be effectively received by the support plate (20), and therefore the airbag (30) that is deployed forward of the vehicle. Can effectively function.

請求項３の構成によれば、支えプレート（２０）をステアリング（７）よりも前方に配置することで、二輪車が接触した対象物（６０）に対して適した位置に第１のエアバック（３０）を展開させることができ、第１のエアバック（３０）を介して接触した対象物（６０）の外力を支えプレート（２０）にて受け止めることが可能となる。 According to the configuration of the third aspect , the support plate (20) is disposed in front of the steering (7), so that the first airbag ( 30) can be deployed, and the external force of the object (60) in contact with the first airbag (30) can be received by the support plate (20).

請求項４の構成によれば、二輪車が対象物に接触した時に、支えプレート（２０）の下方と前輪（ＷＦ）との間で第１のエアバッグ（３０）が膨張して展開し、支えプレート（２０）と乗員（７０）との間で第２のエアバック（４０）が膨張して展開する。
したがって、乗員（７０）が第２のエアバック（４０）を押す荷重は第１のエアバック（３０）を介して接触した対象物（６０）に伝達されるので、対象物（６０）が受け面となることで、乗員（７０）が持っているエネルギーを第２のエアバック（４０）で吸収することが可能となり、荷重が二輪車（１）に伝達されることで生じるピッチング（車体がノーズダイブとなり後輪が浮き上がる現象）を抑制することが可能となる。 According to the configuration of the fourth aspect , when the two-wheeled vehicle comes into contact with the object, the first airbag (30) is inflated and deployed between the lower portion of the support plate (20) and the front wheel (WF) to support it. The second airbag (40) is inflated and deployed between the plate (20) and the occupant (70).
Accordingly, the load by which the occupant (70) pushes the second airbag (40) is transmitted to the object (60) in contact with the occupant (70) via the first airbag (30), so that the object (60) receives the load. By becoming a surface, it becomes possible to absorb the energy possessed by the occupant (70) by the second airbag (40), and the pitching (the vehicle body is nose) caused by the load being transmitted to the two-wheeled vehicle (1). It is possible to suppress the phenomenon that the rear wheel floats as a dive.

請求項５の構成によれば、第１のエアバック（３０）を先に膨張させた後、第２のエアバック（４０）を膨張させることで、二輪車（１）に対して大きな外力が印加された時に前もってピッチングを抑え込むことを可能とし、乗員（７０）が持っているエネルギーを第２のエアバック（４０）で効率良く吸収することが可能である。 According to the configuration of claim 5, a large external force is applied to the two-wheeled vehicle (1) by inflating the second airbag (40) after first inflating the first airbag (30). Therefore, the pitching can be suppressed in advance, and the energy of the occupant (70) can be efficiently absorbed by the second airbag (40).

請求項６の構成によれば、支えプレート（２０）をヘッドパイプ（２ａ）に取り付けたことで、二輪車が接触した対象物（６０）に対して適した位置に第１のエアバック（３０）を展開させることができ、第１のエアバック（３０）を介して接触した対象物（６０）の外力を支えプレート（２０）にて受け止めることが可能となる。 According to the configuration of the sixth aspect , since the support plate (20) is attached to the head pipe (2a), the first airbag (30) is positioned at a position suitable for the object (60) with which the two-wheeled vehicle comes into contact. And the external force of the object (60) in contact with the first airbag (30) can be received by the support plate (20).

請求項７の構成によれば、支えプレート（２０）をカバー部材（１０）で覆うことにより、外観性向上を図りつつ車両のピッチングを抑えることが可能となる。 According to the configuration of the seventh aspect , by covering the support plate (20) with the cover member (10), it becomes possible to suppress the pitching of the vehicle while improving the appearance.

請求項８の構成によれば、支えプレート（２０）をヘッドパイプ（２ａ）の近傍で幅狭とすることで、ヘッドパイプ（２ａ）に対して回動するステアリング（７）のステアリング角を確保することが可能となる。

According to the configuration of the eighth aspect , by narrowing the support plate (20) in the vicinity of the head pipe (2a), the steering angle of the steering (7) rotating with respect to the head pipe (2a) is secured. It becomes possible to do.

Claims

From the front side, with respect to the two-wheeled vehicle in which the front wheel (WF), the head pipe (2a) that rotatably supports the steering wheel (7), the seat (9) on which an occupant rides, and the rear wheel (WR) are arranged , An acceleration sensor (50) for detecting acceleration applied to the vehicle, an inflator for inflating an airbag, and a control unit for operating the inflator when a detection signal from the acceleration sensor (50) exceeds a predetermined value In the airbag device provided with (55),
A two-wheeled air bag apparatus comprising a first air bag (30) that can be deployed in a space surrounded by a front and a lower side of the head pipe (2a) and an upper side of the front wheel (WF) .

A support plate (20) fixed to the vehicle side and extending toward the front of the vehicle is provided, and the first airbag (30) includes a lower portion of the support plate (20) and the front wheel (WF). The airbag apparatus for two-wheeled vehicles according to claim 1 provided between the two.

The airbag apparatus for a motorcycle according to claim 2 , wherein the support plate (20) is disposed in front of the steering (7).

The airbag apparatus for a motorcycle according to claim 2 or 3 , wherein a second airbag (40) is provided closer to an occupant side than the support plate (20).

When the output value from the acceleration sensor (50) exceeds a predetermined value, the control unit (55) first inflates the first airbag (30), and then the second airbag. The airbag apparatus for a motorcycle according to claim 4 , wherein (40) is inflated.

The airbag apparatus for a motorcycle according to claim 2 , wherein the support plate (20) is attached to the head pipe (2a).

The airbag apparatus for a motorcycle according to any one of claims 2 to 6 , wherein the support plate (20) is covered with a cover member (10) mounted in front of the vehicle.

The airbag apparatus for a motorcycle according to claim 6 or 7 , wherein the support plate (20) is formed narrower than other portions in the vicinity of the head pipe (2a).