JP2021070444A - Steering wheel - Google Patents

Steering wheel Download PDF

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JP2021070444A
JP2021070444A JP2019199504A JP2019199504A JP2021070444A JP 2021070444 A JP2021070444 A JP 2021070444A JP 2019199504 A JP2019199504 A JP 2019199504A JP 2019199504 A JP2019199504 A JP 2019199504A JP 2021070444 A JP2021070444 A JP 2021070444A
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steering wheel
driver
boss
vehicle
boss portion
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JP7184014B2 (en
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松澤　智樹
Tomoki Matsuzawa
智樹 松澤
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Toyota Motor Corp
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Toyota Motor Corp
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Abstract

To reduce an impact applied to a face or a neck of a driver by deployment of an airbag in a steering wheel in which a driver holding part located above a boss part is omitted.SOLUTION: A steering wheel 10 includes a boss part 14 which is disposed at a center part of the steering wheel 10, houses an airbag inside, and has a facing surface 30 facing a driver. In the steering wheel 10, a driver holding part located above the boss part 14 is omitted and driver holding parts are provided at left and right sides of the boss part 14. The steering wheel 10 includes a support part 18, which protrudes to the vehicle rear farther than the facing surface 30 of the boss part 14 to support the driver falling over the steering wheel 10, below the boss part 14.SELECTED DRAWING: Figure 2

Description

本発明は、車両のステアリングホイールに関し、特に、エアバックを収納するボス部の上側の運転者把持部が省かれた異型ステアリングホイールに関する。 The present invention relates to a steering wheel of a vehicle, and more particularly to a modified steering wheel in which a driver grip portion above a boss portion for accommodating an airbag is omitted.

車両のステアリングホイールは、中央部に位置するボス部を備え、ボス部は、エアバックを収納する。従来、ボス部上側の運転者把持部が省かれ、ボス部の左右に配置された運転者把持部を備え、運転者が操舵時にステアリングホイールを持ち替えることなく車両の運転を行える異型ステアリングホイールが知られている。特許文献１には、左右の把持部の上下端部を夫々連結するように架設された上下の連結部を備え、上下連結部のそれぞれが略直線状に形成された異型ステアリングハンドルが開示されている。 The steering wheel of the vehicle is provided with a boss portion located at the center, and the boss portion stores an airbag. Conventionally, the driver grip portion on the upper side of the boss portion is omitted, and the driver grip portion arranged on the left and right sides of the boss portion is provided, and a variant steering wheel that allows the driver to drive the vehicle without changing the steering wheel at the time of steering is known. Has been done. Patent Document 1 discloses a modified steering handle provided with upper and lower connecting portions erected so as to connect the upper and lower ends of the left and right grip portions, respectively, and each of the upper and lower connecting portions is formed in a substantially linear shape. There is.

特開平１１−５９４３４号公報Japanese Unexamined Patent Publication No. 11-59434

異型ステアリングホイールは、円形ステアリングホイールに比べて、ステアリングホイールの上部の空間が広い。そのため、事故や病気により運転者が車両前方に倒れ込んだ状態（通常の運転姿勢が取れない状態（アウトオブポジション、ＯＯＰとも言う））では、運転者の頭部位置がボス部に近くなり、エアバックが爆発展開された際に運転者の顔面や首部への衝撃が大きくなる虞がある。 The variant steering wheel has a larger space above the steering wheel than the circular steering wheel. Therefore, when the driver falls down in front of the vehicle due to an accident or illness (when the normal driving posture cannot be taken (out of position, also called OOP)), the driver's head position becomes closer to the boss and the air When the bag is exploded, the impact on the driver's face and neck may increase.

本発明の目的は、ステアリングホイール内のエアバックの展開による運転者の顔面や首部への衝撃を軽減することができる異型ステアリングホイールを提供することにある。 An object of the present invention is to provide a modified steering wheel capable of reducing an impact on the driver's face and neck due to deployment of an airbag in the steering wheel.

本発明のステアリングホイールは、ステアリングホイールの中央部に位置し、エアバックを収納すると共に、運転者に対向する対向面を有するボス部を備え、前記ボス部の上方の運転者把持部が省かれ、前記ボス部の左右に運転者把持部が設けられたステアリングホイールであって、前記ボス部の下方に位置し、前記ボス部の前記対向面よりも車両後方へ突出して運転者の倒れ込みを支える支持部を備える、ことを特徴とする。 The steering wheel of the present invention is located in the central portion of the steering wheel, includes a boss portion that houses an airbag and has a facing surface facing the driver, and the driver grip portion above the boss portion is omitted. A steering wheel provided with a driver grip portion on the left and right sides of the boss portion, which is located below the boss portion and protrudes rearward of the vehicle from the facing surface of the boss portion to support the driver's fall. It is characterized by having a support portion.

本発明によれば、運転者が車両前方に倒れ込んだ状態で、支持部が運転者の胸付近に当たることにより、支持部が設けられていない場合に比べて、運転者の頭部とボス部の間に大きな隙間を設けることができる。従って、ボス部からエアバックが展開した際に、エアバックによる運転者の顔面や首部への衝撃を軽減することができる。 According to the present invention, when the driver falls down in front of the vehicle, the support portion hits the vicinity of the driver's chest, so that the driver's head and the boss portion are compared with the case where the support portion is not provided. A large gap can be provided between them. Therefore, when the airbag is deployed from the boss portion, the impact of the airbag on the driver's face and neck can be reduced.

実施形態に係るステアリングホイールの斜視図である。It is a perspective view of the steering wheel which concerns on embodiment. 実施形態に係るステアリングホイールとＯＯＰの運転者のダミーの位置を示す図である。It is a figure which shows the position of the dummy of the driver of the steering wheel and the OOP which concerns on embodiment. 従来技術に係るステアリングホイールとＯＯＰの運転者のダミーの位置を示す図である。It is a figure which shows the position of the dummy of the driver of the steering wheel and OOP which concerns on the prior art. 弾性ステアリングホイールと従来技術のステアリングホイールにおける、車両高速衝突時のダミーの移動量に対するダミーの胸に印加されるＧ（重力加速度）を示す図である。It is a figure which shows G (gravity acceleration) applied to the dummy chest with respect to the movement amount of the dummy at the time of a vehicle high-speed collision in the elastic steering wheel and the steering wheel of the prior art. 別の実施形態に係るステアリングホイールの斜視図である。It is a perspective view of the steering wheel which concerns on another embodiment. さらに別の実施形態に係るステアリングホイールの斜視図である。It is a perspective view of the steering wheel which concerns on still another Embodiment.

以下、図面を参照しながら本発明の実施形態について説明する。以下で述べる形状は説明のための例示であって、ステアリングホイールの仕様等に合わせて適宜変更が可能である。全ての図面において同様の要素には同一の符号を付し、重複する説明を省略する。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. The shapes described below are examples for explanation, and can be appropriately changed according to the specifications of the steering wheel and the like. Similar elements are designated by the same reference numerals in all drawings, and duplicate description will be omitted.

図１は、本発明の実施形態に係る、車両のステアリングホイール１０の斜視図である。ステアリングホイール１０は、中央部に位置するボス部１４と、操舵中立状態でボス部１４の左右両側に配置された運転者把持部１６を備える。ボス部１４は、内部にエアバック１２を収納し、端部には運転者に対向する対向面３０を有する。 FIG. 1 is a perspective view of a steering wheel 10 of a vehicle according to an embodiment of the present invention. The steering wheel 10 includes a boss portion 14 located at the center and a driver grip portion 16 arranged on both left and right sides of the boss portion 14 in a steering neutral state. The boss portion 14 houses the airbag 12 inside, and has an facing surface 30 facing the driver at the end portion.

左右の運転者把持部１６のそれぞれは、左右方向の外側に若干膨らんだ湾曲形状を有し、それらの上部は、直線状の上側連結部２０により互いに連結されており、それらの下部は、略凹状の下側連結部２２により互いに連結されている。上側連結部２０の左右方向の中央部分は、ボス部１４の上部に固着されている。本実施形態のステアリングホイール１０は、ボス部１４上方の運転者把持部が省かれた異型ステアリングホイールであり、運転者が操舵時に左右の運転者把持部１６を把持し、ステアリングホイールを持ち替えることなく車両の運転を行える仕様である。 Each of the left and right driver grip portions 16 has a curved shape slightly bulging outward in the left-right direction, and the upper portions thereof are connected to each other by a linear upper connecting portion 20, and the lower portions thereof are substantially connected to each other. They are connected to each other by a concave lower connecting portion 22. The central portion of the upper connecting portion 20 in the left-right direction is fixed to the upper portion of the boss portion 14. The steering wheel 10 of the present embodiment is a modified steering wheel in which the driver grip portion above the boss portion 14 is omitted, and the driver grips the left and right driver grip portions 16 at the time of steering without changing the steering wheel. It is a specification that allows you to drive a vehicle.

下側連結部２２の左右方向の中央部分は、ボス部１４の対向面３０よりも車両後方（運転者側）に位置しており、ボス部１４の底面から車両後方へ向かって延びた保持部２４によって保持されている。本実施形態では、下側連結部２２の左右方向の中央部分が、支持部１８を構成している。下側連結部２２は、支持部１８を車両後方端として、左右方向の両端部分が車両後方から車両前方に向かって傾斜している。左右の運転者把持部１６は、支持部１８よりも車両前方に位置する。 The central portion of the lower connecting portion 22 in the left-right direction is located behind the vehicle (driver side) with respect to the facing surface 30 of the boss portion 14, and is a holding portion extending from the bottom surface of the boss portion 14 toward the rear of the vehicle. Held by 24. In the present embodiment, the central portion of the lower connecting portion 22 in the left-right direction constitutes the supporting portion 18. The lower connecting portion 22 has both ends in the left-right direction inclined from the rear of the vehicle toward the front of the vehicle with the support portion 18 as the rear end of the vehicle. The left and right driver grip portions 16 are located in front of the vehicle with respect to the support portion 18.

図２は、ステアリングホイール１０の左右方向の中央部の概略断面と、運転者のダミー５０の位置を示す図である。図２には、事故や病気により運転者が車両前方に倒れ込んだ状態が示されている。このような状態は、通常の運転姿勢が取れない状態として、アウトオブポジション、ＯＯＰとも呼ばれる。本実施形態のステアリングホイール１０は、支持部１８がボス部１４の下方に位置し、ボス部１４の対向面３０よりも車両後方へ突出している。従って、運転者が車両前方に倒れ込んだ状態で、図２に示すように、運転者の胸付近に支持部１８が当たることにより、運転者の頭部とボス部１４の間（図２の破線円の内側に示す部分）に隙間を設けることができる。 FIG. 2 is a diagram showing a schematic cross section of the central portion of the steering wheel 10 in the left-right direction and the position of the driver's dummy 50. FIG. 2 shows a state in which the driver has fallen in front of the vehicle due to an accident or illness. Such a state is also called out-of-position or OOP as a state in which the normal driving posture cannot be taken. In the steering wheel 10 of the present embodiment, the support portion 18 is located below the boss portion 14, and projects rearward from the facing surface 30 of the boss portion 14. Therefore, as shown in FIG. 2, when the driver falls down in front of the vehicle, the support portion 18 hits the vicinity of the driver's chest, so that the support portion 18 is between the driver's head and the boss portion 14 (broken line in FIG. 2). A gap can be provided in the part shown inside the circle).

図３は、従来技術に係る異型ステアリングホイール１０ＡとＯＯＰの運転者のダミー５０の位置を示す図である。従来技術の異型ステアリングホイール１０Ａは、下側連結部２２ａがボス部１４の対向面３０よりも車両前方側に引っ込んでいる。従来技術のステアリングホイール１０Ａでは、運転者が車両前方に倒れ込んだ際に、運転者の頭部とボス部１４の間に、ほとんど隙間ができない。本実施形態（図２参照）のステアリングホイール１０は、このような従来技術に比べて、運転者の頭部とボス部１４の間により大きな隙間を確保することができる。 FIG. 3 is a diagram showing the positions of the variant steering wheel 10A and the driver dummy 50 of the OOP according to the prior art. In the modified steering wheel 10A of the prior art, the lower connecting portion 22a is retracted to the front side of the vehicle with respect to the facing surface 30 of the boss portion 14. With the conventional steering wheel 10A, when the driver falls forward of the vehicle, there is almost no gap between the driver's head and the boss portion 14. The steering wheel 10 of the present embodiment (see FIG. 2) can secure a larger gap between the driver's head and the boss portion 14 as compared with such a conventional technique.

ボス部１４の内部のエアバックは、車両衝突時などに、車両後方および上方に向かって爆発展開する。本実施形態のステアリングホイール１０によれば、運転者が車両前方に倒れ込んだ状態で運転者の頭部とボス部１４の間に比較的大きな隙間が設けられるので、その状態でエアバックが爆発展開した際に、運転者の顔面や首部への衝撃を低減することができる。 The airbag inside the boss portion 14 explodes toward the rear and upper sides of the vehicle in the event of a vehicle collision or the like. According to the steering wheel 10 of the present embodiment, a relatively large gap is provided between the driver's head and the boss portion 14 when the driver is tilted forward of the vehicle, so that the airbag explodes and deploys in that state. At that time, the impact on the driver's face and neck can be reduced.

なお、ステアリングホイール１０の下側連結部２２（支持部１８を含む）および保持部２４は、弾性変形可能に構成されてもよい。以下、この構成のステアリングホイール１０を、弾性ステアリングホイールと言う。図４は、車両の高速衝突時におけるダミー５０の移動量に対するダミー５０の胸に印加されるＧ（重力加速度）を示すグラフであり、実線が、弾性ステアリングホイールを用いた場合のグラフであり、破線が、従来技術のステアリングホイール１０Ａ（図３参照）を用いた場合のグラフである。図４に示すように、従来技術のステアリングホイール１０Ａを用いた場合には、移動量Ｍ２でダミー５０の胸がステアリングホイールに接し、ダミー５０の胸に大きなＧが印加される。それに対して、弾性ステアリングホイールを用いた場合には、移動量Ｍ１でダミー５０の胸がステアリングホイールの支持部１８に接し、支持部１８を含む下側連結部２２および保持部２４が弾性変形する（エネルギーを吸収する）ことで、従来技術に比べてダミー５０の胸に印加される最大Ｇが抑制される。このように、弾性ステアリングホイールによれば、運転手の胸に印加される最大Ｇを低下させることができる。 The lower connecting portion 22 (including the supporting portion 18) and the holding portion 24 of the steering wheel 10 may be configured to be elastically deformable. Hereinafter, the steering wheel 10 having this configuration will be referred to as an elastic steering wheel. FIG. 4 is a graph showing G (gravity acceleration) applied to the chest of the dummy 50 with respect to the amount of movement of the dummy 50 at the time of a high-speed collision of the vehicle, and the solid line is a graph when an elastic steering wheel is used. The broken line is a graph when the conventional steering wheel 10A (see FIG. 3) is used. As shown in FIG. 4, when the conventional steering wheel 10A is used, the chest of the dummy 50 comes into contact with the steering wheel at the movement amount M2, and a large G is applied to the chest of the dummy 50. On the other hand, when the elastic steering wheel is used, the chest of the dummy 50 comes into contact with the support portion 18 of the steering wheel at the movement amount M1, and the lower connecting portion 22 including the support portion 18 and the holding portion 24 are elastically deformed. By (absorbing energy), the maximum G applied to the chest of the dummy 50 is suppressed as compared with the conventional technique. Thus, according to the elastic steering wheel, the maximum G applied to the driver's chest can be reduced.

次に、本発明の別の実施形態について説明する。図５は、本発明の別の実施形態に係るステアリングホイール１０Ｂの斜視図である。図５のステアリングホイール１０Ｂは、図１のステアリングホイール１０の上側連結部２０を省いた異型ステアリングホイールである。図５のステアリングホイール１０Ｂも、図１のステアリングホイール１０と同様に、下側連結部２２の左右方向の中央部分が支持部１８を構成しており、支持部１８が、ボス部１４の下方に位置し、ボス部１４の対向面３０よりも車両後方に突出している。図５のステアリングホイール１０Ｂも、以上で説明した図１のステアリングホイール１０と同様の作用効果を得ることができる。 Next, another embodiment of the present invention will be described. FIG. 5 is a perspective view of the steering wheel 10B according to another embodiment of the present invention. The steering wheel 10B of FIG. 5 is a modified steering wheel in which the upper connecting portion 20 of the steering wheel 10 of FIG. 1 is omitted. In the steering wheel 10B of FIG. 5, similarly to the steering wheel 10 of FIG. 1, the central portion of the lower connecting portion 22 in the left-right direction constitutes the support portion 18, and the support portion 18 is located below the boss portion 14. It is located and protrudes rearward of the vehicle from the facing surface 30 of the boss portion 14. The steering wheel 10B of FIG. 5 can also obtain the same effect as that of the steering wheel 10 of FIG. 1 described above.

図６は、本発明のさらに別の実施形態に係るステアリングホイール１０Ｃの斜視図である。図６のステアリングホイール１０Ｃは、図１のステアリングホイール１０の上側連結部２０と下側連結部２２を省き、左右の運転者把持部１６をボス部１４の左右側面に接続し、ボス部１４の底面から車両前方に延ばした延出部４０の先端を支持部１８とした異型ステアリングホイールである。図６のステアリングホイール１０Ｃも、図１のステアリングホイール１０と同様に、支持部１８が、ボス部１４の下方に位置し、ボス部１４の対向面３０よりも車両後方に位置している。図６のステアリングホイール１０Ｃも、以上で説明した図１のステアリングホイール１０と同様の作用効果を得ることができる。 FIG. 6 is a perspective view of the steering wheel 10C according to still another embodiment of the present invention. In the steering wheel 10C of FIG. 6, the upper connecting portion 20 and the lower connecting portion 22 of the steering wheel 10 of FIG. 1 are omitted, the left and right driver grip portions 16 are connected to the left and right side surfaces of the boss portion 14, and the boss portion 14 This is a modified steering wheel in which the tip of an extending portion 40 extending from the bottom surface to the front of the vehicle is used as a supporting portion 18. In the steering wheel 10C of FIG. 6, the support portion 18 is located below the boss portion 14 and is located behind the vehicle with respect to the facing surface 30 of the boss portion 14, similarly to the steering wheel 10 of FIG. The steering wheel 10C of FIG. 6 can also obtain the same effect as that of the steering wheel 10 of FIG. 1 described above.

なお、以上説明した各実施形態の運転者把持部１６は、ボス部１４の左右に設けられるが、ボス部１４の対向面３０に対する運転者把持部１６の車両前後方向の位置は限定されるものではない。「ボス部の左右に運転者把持部が設けられる（た）」とは、ボス部１４の両脇に運転者把持部１６が設けられる形態の他、ボス部１４の対向面３０に対して車両前後方向に離れた位置等に運転者把持部１６が設けられる形態も含むものであり、例えば、支持部１８と運転者把持部１６の車両前後方向の位置が同じような形態も含むものである。 The driver grip portions 16 of each of the above-described embodiments are provided on the left and right sides of the boss portion 14, but the position of the driver grip portion 16 in the vehicle front-rear direction with respect to the facing surface 30 of the boss portion 14 is limited. is not it. "The driver grips are provided on the left and right sides of the boss" means that the driver grips 16 are provided on both sides of the boss 14, and the vehicle is opposed to the facing surface 30 of the boss 14. It also includes a form in which the driver grip portion 16 is provided at a position separated in the front-rear direction, and includes, for example, a form in which the positions of the support portion 18 and the driver grip portion 16 in the vehicle front-rear direction are similar.

１０，１０Ａ，１０Ｂ，１０Ｃ ステアリングホイール（異型ステアリングホイール）、１２ エアバック、１４ ボス部、１６ 運転者把持部、１８ 支持部、２０ 上側連結部、２２，２２ａ 下側連結部、２４ 保持部、３０ 対向面、４０ 延出部、５０ ダミー。
10, 10A, 10B, 10C Steering wheel (atypical steering wheel), 12 airbag, 14 boss, 16 driver grip, 18 support, 20 upper connection, 22, 22a lower connection, 24 holding, 30 facing surface, 40 extension, 50 dummy.

Claims (1)

ステアリングホイールの中央部に位置し、エアバックを収納すると共に、運転者に対向する対向面を有するボス部を備え、前記ボス部の上方の運転者把持部が省かれ、前記ボス部の左右に運転者把持部が設けられたステアリングホイールであって、
前記ボス部の下方に位置し、前記ボス部の前記対向面よりも車両後方へ突出して運転者の倒れ込みを支える支持部を備える、
ことを特徴とするステアリングホイール。
It is located in the center of the steering wheel, has a boss part that houses the airbag and has an facing surface facing the driver, the driver grip part above the boss part is omitted, and the left and right sides of the boss part are left and right. A steering wheel provided with a driver grip
A support portion that is located below the boss portion and projects rearward of the vehicle from the facing surface of the boss portion to support the driver's fall.
The steering wheel is characterized by that.
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52116538A (en) * 1976-03-01 1977-09-30 Bill Hugo Protective apparatus absorbing impact force particularly for protecting passengers on vehicle
JPH02200546A (en) * 1989-01-31 1990-08-08 Suzuki Motor Co Ltd Crew protecting device for automobile
DE4314573A1 (en) * 1993-04-28 1994-11-03 Manfred Trocha Steering wheel, in particular for two-track vehicles
JPH1159434A (en) * 1997-08-27 1999-03-02 Honda Motor Co Ltd Steering wheel of vehicle
JP2003501308A (en) * 1999-06-08 2003-01-14 タカタ・ペトリ アーゲー Airbag module for steering wheel
JP2006131184A (en) * 2004-11-09 2006-05-25 Nissan Motor Co Ltd Driving posture maintaining device
JP2008168746A (en) * 2007-01-10 2008-07-24 Toyota Motor Corp Vehicular steering system
JP2009214734A (en) * 2008-03-11 2009-09-24 Toyota Motor Corp Vehicular airbag device
DE102010050699A1 (en) * 2009-11-18 2011-08-25 ACTS Advanced Car Technology Systems GmbH & Co.KG, 63877 Occupant e.g. driver, protective device for use in region of e.g. fixed steering wheel hub in motor car to protect occupant, during crash, has shroud designed as screen and attached with drive unit, via which shroud movement is caused
JP2014101025A (en) * 2012-11-20 2014-06-05 Toyota Motor Corp Steering wheel

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52116538A (en) * 1976-03-01 1977-09-30 Bill Hugo Protective apparatus absorbing impact force particularly for protecting passengers on vehicle
JPH02200546A (en) * 1989-01-31 1990-08-08 Suzuki Motor Co Ltd Crew protecting device for automobile
DE4314573A1 (en) * 1993-04-28 1994-11-03 Manfred Trocha Steering wheel, in particular for two-track vehicles
JPH1159434A (en) * 1997-08-27 1999-03-02 Honda Motor Co Ltd Steering wheel of vehicle
JP2003501308A (en) * 1999-06-08 2003-01-14 タカタ・ペトリ アーゲー Airbag module for steering wheel
JP2006131184A (en) * 2004-11-09 2006-05-25 Nissan Motor Co Ltd Driving posture maintaining device
JP2008168746A (en) * 2007-01-10 2008-07-24 Toyota Motor Corp Vehicular steering system
JP2009214734A (en) * 2008-03-11 2009-09-24 Toyota Motor Corp Vehicular airbag device
DE102010050699A1 (en) * 2009-11-18 2011-08-25 ACTS Advanced Car Technology Systems GmbH & Co.KG, 63877 Occupant e.g. driver, protective device for use in region of e.g. fixed steering wheel hub in motor car to protect occupant, during crash, has shroud designed as screen and attached with drive unit, via which shroud movement is caused
JP2014101025A (en) * 2012-11-20 2014-06-05 Toyota Motor Corp Steering wheel

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