JP2010095044A - Vehicular pedestrian protective device and its installation structure - Google Patents

Vehicular pedestrian protective device and its installation structure Download PDF

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JP2010095044A
JP2010095044A JP2008265505A JP2008265505A JP2010095044A JP 2010095044 A JP2010095044 A JP 2010095044A JP 2008265505 A JP2008265505 A JP 2008265505A JP 2008265505 A JP2008265505 A JP 2008265505A JP 2010095044 A JP2010095044 A JP 2010095044A
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vehicle
plate portion
pedestrian protection
protection device
plate
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JP5340690B2 (en
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Keisuke Noyori
圭介 野寄
Yoshihiro Ogura
良宏 小倉
Fukio Morino
富喜雄 森野
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Toyota Motor Corp
Kojima Industries Corp
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Kojima Press Industry Co Ltd
Toyota Motor Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide: a vehicular pedestrian protective device, for stably securing desired pedestrian protective performance; and its installation structure to a vehicle. <P>SOLUTION: A vertical wall part 38 extending in the height direction of the vehicle and expanding in the vehicle width direction is integrally formed to a plate part 10 so as to be positioned in a rear side part 12 of the plate part 10, and meanwhile a transverse wall part 42 extending in the rear of the vehicle from its upper side part and expanding in the vehicle width direction is integrally formed to the vertical wall part 38, thus constituting a pedestrian protective device. Such a pedestrian protective device is arranged at a position where the vertical wall part 38 and the transverse wall part 42 can abut on a plate-like projection part 54 installed in an installation object part of the vehicle to which the plate part 10 is attached. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、車両用歩行者保護装置及びその取付構造に係り、特に、車両前部の下部部位に設置されて、車両前面に衝突乃至は接触した歩行者の脚部に接触せしめられることにより、歩行者の脚部に反力を及ぼして、かかる脚部を保護する車両用歩行者保護装置とそのような車両用歩行者保護装置の車両への有利な取付構造とに関するものである。   The present invention relates to a pedestrian protection device for a vehicle and its mounting structure, in particular, by being installed at a lower part of the front part of the vehicle and being brought into contact with a leg part of a pedestrian that collided with or contacted the front of the vehicle, The present invention relates to a vehicle pedestrian protection device that exerts a reaction force on a leg portion of a pedestrian to protect the leg portion, and an advantageous attachment structure of such a vehicle pedestrian protection device to a vehicle.

従来から、自動車等の車両においては、衝突時に生ずる衝撃エネルギーを吸収し、車体や乗員を保護することを主な目的として、車両の前面や後面、或いは側面等に、各種の保護装置が設置されている。また、近年では、車両の前面に歩行者が衝突（接触）した際に歩行者を保護する装置も、車両前面に設置されるようになってきている。   Conventionally, in vehicles such as automobiles, various protection devices have been installed on the front, rear, or side surfaces of the vehicle mainly for the purpose of absorbing impact energy generated in the event of a collision and protecting the vehicle body and passengers. ing. In recent years, a device for protecting a pedestrian when a pedestrian collides (contacts) with the front of the vehicle has also been installed on the front of the vehicle.

そして、かかる歩行者保護装置の一種として、フロントバンパの内側や、フロントバンパとは独立して、その下部に設置されて、歩行者が車両前面に衝突したときに入力される衝撃荷重に対する反力を歩行者の脚部に作用せしめることで、歩行者をボンネット等の衝撃吸収可能な部材にて受け止めさせることにより、歩行者の保護及び安全を図るようにした装置が、知られている。   As a kind of such pedestrian protection device, a reaction force against an impact load input when a pedestrian collides with the front of the vehicle is installed inside the front bumper or under the front bumper and below the front bumper. There is known a device that protects and protects a pedestrian by causing the pedestrian to act on a leg portion of the pedestrian to cause the pedestrian to be received by a shock-absorbing member such as a bonnet.

また、そのような歩行者保護装置に関して、従来から各種の構造が提案されている。例えば、車両の前部の下部部位に、車両の前後方向に延びるように配置されて、後側部分において車両に取り付けられると共に、前側部分に、車両前後方向に延びる補強リブや断面コ字状の補強ビード等からなる補強部が一体形成されたプレート部を有し、このプレート部の前端部において、車両の前面に衝突した歩行者の脚部に接触することにより、歩行者の脚部に反力を及ぼして、歩行者の脚部を保護し得るように構成した車両用歩行者保護装置が、提案されている（例えば、下記特許文献１及び２参照）。   Various structures have been proposed for such pedestrian protection devices. For example, it is arranged in the lower part of the front part of the vehicle so as to extend in the front-rear direction of the vehicle, and is attached to the vehicle in the rear part, and the front part has a reinforcing rib or U-shaped cross section extending in the vehicle front-rear direction. It has a plate part integrally formed with a reinforcing part composed of a reinforcing bead, etc., and at the front end part of this plate part, it comes into contact with the leg part of the pedestrian that has collided with the front surface of the vehicle, so A vehicle pedestrian protection device configured to exert force to protect a pedestrian's legs has been proposed (see, for example, Patent Documents 1 and 2 below).

かくの如き構造を有する歩行者保護装置にあっては、例えば、プレート部とそれに設けられる補強部とを合成樹脂材料にて一体成形すれば、十分な軽量性と優れた成形性が確保され得る。また、プレート部の前側部分の剛性が、そこに形成された補強部によって十分に確保され得る。以て、所望の歩行者保護性能が、コンパクトな構造にて有利に発揮され得るのである。   In the pedestrian protection device having such a structure, for example, if the plate portion and the reinforcing portion provided on the plate portion are integrally formed of a synthetic resin material, sufficient lightness and excellent moldability can be secured. . Further, the rigidity of the front portion of the plate portion can be sufficiently ensured by the reinforcing portion formed there. Therefore, the desired pedestrian protection performance can be advantageously exhibited with a compact structure.

ところが、そのような従来の車両用歩行者保護装置について、本発明者等が様々な角度から検討を加えたところ、かかる従来装置は、以下の如き改良点を有していることが、判明した。   However, when the present inventors have examined the conventional pedestrian protection device for vehicles from various angles, it has been found that the conventional device has the following improvements. .

すなわち、従来の歩行者保護装置では、車両の前部の下部部位に位置する、例えばラジエータサポートやフロントクロス等に対して、プレート部の後端部のみにおいて取り付けられている。このため、歩行者の車両前面への衝突時に生ずる衝撃荷重の入力方向や入力角度等によっては、プレート部の前側部分を上方に持ち上げるような作用力が発生して、プレート部に対して、車両への取付部等を回転中心とした回転モーメントが加わり、それによって、補強リブや補強ビード等にて補強された前側部分よりも強度の低い後側部分において屈曲してしまう恐れがあった。そして、そうなったときには、歩行者の車両前面への衝突時に生ずる衝撃荷重に対する反力を、歩行者の脚部に対して十分に作用せしめることが困難となり、その結果、歩行者の保護性能の低下が惹起される危惧さえもあったのである。また、このようなプレート部の屈曲変形は、車両に対する取付部の少ない、プレート部の車幅方向両端部側で発生し易く、また、前端部が後端部よりも上方に位置するような形状をプレート部が有しているときにも生じ易いのである。   That is, in the conventional pedestrian protection apparatus, it is attached only at the rear end portion of the plate portion, for example, to a radiator support, a front cross, or the like, which is located at a lower portion of the front portion of the vehicle. For this reason, depending on the input direction and input angle of the impact load generated when the pedestrian collides with the front of the vehicle, an action force that lifts the front portion of the plate portion upward is generated. A rotational moment with the mounting portion or the like as the center of rotation is applied, which may cause bending at the rear portion having a lower strength than the front portion reinforced with reinforcing ribs or reinforcing beads. And when it becomes so, it becomes difficult to make reaction force with respect to the impact load which arises at the time of a pedestrian's collision with the vehicle front fully act on a pedestrian's leg, and as a result, pedestrian's protection performance There was even a fear that the decline would be triggered. Further, such bending deformation of the plate portion is likely to occur at both ends in the vehicle width direction of the plate portion with few attachment portions to the vehicle, and the front end portion is positioned above the rear end portion. This is also likely to occur when the plate portion has.

特開２００７−１７６３３８号公報JP 2007-176338 A 特開２００７−３３１５１２号公報JP 2007-331512 A

ここにおいて、本発明は、上述せる如き事情を背景にして為されたものであって、その解決課題とするところは、衝撃荷重の入力時におけるプレート部の屈曲変形が有利に防止されて、所望の歩行者保護性能が、確実に発揮され得るように改良された車両用歩行者保護装置の構造を提供することにある。また、本発明にあっては、そのような車両用歩行者保護装置を車両に対して有利に取り付け得る車両用歩行者保護装置の取付構造を提供することをも、その解決課題とするものである。   Here, the present invention has been made in the background as described above, and the problem to be solved is that the bending deformation of the plate portion at the time of input of impact load is advantageously prevented, and is desired. An object of the present invention is to provide a structure of a vehicle pedestrian protection device that is improved so that the pedestrian protection performance of the vehicle can be reliably exhibited. Further, in the present invention, it is an object of the present invention to provide a mounting structure for a pedestrian protection device for a vehicle that can advantageously attach such a pedestrian protection device for a vehicle to a vehicle. is there.

そして、本発明にあっては、上記した課題、又は本明細書全体の記載や図面から把握される課題を解決するために、以下に列挙せる如き各種の態様において、好適に実施され得るものであるが、また、以下に記載の各態様は、任意の組み合わせにおいても、採用可能である。なお、本発明の態様乃至は技術的特徴は、以下に記載のものに何等限定されることなく、明細書全体の記載並びに図面に開示の発明思想に基づいて、認識され得るものであることが、理解されるべきである。   And in the present invention, in order to solve the above-mentioned problems or the problems grasped from the entire description and drawings of the present specification, it can be suitably implemented in various modes as listed below. However, each aspect described below can be adopted in any combination. It should be noted that aspects or technical features of the present invention are not limited to those described below, and can be recognized based on the description of the entire specification and the inventive concept disclosed in the drawings. Should be understood.

（１） 車両の前部の下部部位に、車両の前後方向に延びるように配置されて、後側部分において車両に取り付けられると共に、前側部分に補強部が設けられたプレート部を有し、該プレート部の前端部において、車両の前面に衝突した歩行者の脚部に接触することにより、該脚部を保護し得るように構成した車両用歩行者保護装置であって、車両の高さ方向に延び出して、且つ車幅方向に広がる縦壁部が、前記プレート部に対して、前記後側部分に位置するように一体形成されていると共に、該縦壁部の上側部位から車両の後方に延び出して、且つ車幅方向に広がる横壁部が、該縦壁部に一体形成されていることを特徴とする車両用歩行者保護装置。 (1) It is arranged at the lower part of the front part of the vehicle so as to extend in the front-rear direction of the vehicle, and is attached to the vehicle at the rear part, and has a plate part provided with a reinforcing part at the front part, A vehicle pedestrian protection device configured to protect a leg portion by contacting a leg portion of a pedestrian that has collided with the front surface of the vehicle at a front end portion of the plate portion, the height direction of the vehicle A vertical wall portion extending to the vehicle width direction and extending in the vehicle width direction is formed integrally with the plate portion so as to be positioned at the rear portion, and from the upper portion of the vertical wall portion to the rear of the vehicle A pedestrian protection device for vehicles, wherein a lateral wall portion extending in the vehicle width direction and extending in the vehicle width direction is integrally formed with the vertical wall portion.

（２） 前記縦壁部の前面と前記横壁部の上面とに対して、補強リブが、それぞれ一体形成されている上記態様（１）に記載の車両用歩行者保護装置。 (2) The vehicle pedestrian protection device according to the aspect (1), in which reinforcing ribs are integrally formed with the front surface of the vertical wall portion and the upper surface of the horizontal wall portion.

（３） 前記縦壁部が、前記プレート部の前後方向と直角な幅方向の両側の端部において、それぞれの前記後側部分に位置するように設けられている上記態様（１）又は（２）に記載の車両用歩行者保護装置。 (3) The above aspect (1) or (2), wherein the vertical wall portion is provided so as to be positioned at each of the rear side portions at both end portions in the width direction perpendicular to the front-rear direction of the plate portion. ) Pedestrian protection device for vehicles.

（４） 車両の前部の下部部位に、車両の前後方向に延びるように配置されて、後側部分において車両に取り付けられると共に、前側部分に補強部が設けられたプレート部を有し、該プレート部の前端部において、車両の前面に衝突した歩行者の脚部に接触することにより、該脚部を保護し得るように構成した車両用歩行者保護装置を車両に取り付けるための構造であって、上記態様（１）乃至（３）のうちの何れか一つに記載の車両用歩行者保護装置を用い、該車両用歩行者保護装置が取り付けられるべき車両の被取付部位に、上方に向かって突出し且つ車幅方向に広がる板状形態を有して設けられた剛性の板状突部に対して、該車両用歩行者保護装置の前記縦壁部の後面と前記横壁部の下面とが、該車両用歩行者保護装置の前記プレート部の前端部に対する前記歩行者の脚部の接触によって当接することにより、車両の後方と下方への該プレート部の変位が規制される位置に、該車両用歩行者保護装置を配置して、車両に取り付けることを特徴とする車両用歩行者保護装置の取付構造。 (4) It is arranged at the lower part of the front part of the vehicle so as to extend in the front-rear direction of the vehicle, and is attached to the vehicle at the rear part, and has a plate part provided with a reinforcing part at the front part, It is a structure for attaching to a vehicle a pedestrian protection device for a vehicle configured to protect the leg by contacting the leg of a pedestrian that has collided with the front of the vehicle at the front end of the plate. Then, using the vehicle pedestrian protection device according to any one of the above aspects (1) to (3), the vehicle pedestrian protection device is mounted on a portion to be mounted on the vehicle. A rear surface of the vertical wall portion and a lower surface of the horizontal wall portion of the pedestrian protection device for a vehicle with respect to a rigid plate-shaped protrusion provided so as to protrude toward the vehicle and spread in the vehicle width direction. The plate of the pedestrian protection device for vehicles The vehicle pedestrian protection device is disposed at a position where displacement of the plate portion to the rear and downward of the vehicle is regulated by contacting the pedestrian's leg with the front end of the vehicle. A structure for mounting a pedestrian protection device for a vehicle, wherein the pedestrian protection device is mounted on a vehicle.

すなわち、本発明に従う車両用歩行者保護装置においては、プレート部の後端部に、車両の高さ方向に延びる縦壁部が一体的に設けられると共に、この縦壁部の上部に、車両の後方に延びる横壁部が一体形成されている。このため、例えば、プレート部が取り付けられるべき車両の被取付部位に対して、上方に向かって突出し且つ車幅方向に広がる剛性の板状突部が設けられている場合に、かかる板状突部が縦壁部と横壁部との間に位置するように、プレート部を配置して、車両に取り付ければ、プレート部の車両後方側への変位が、板状突部に対する縦壁部の当接によって規制されると共に、プレート部の下方への変位が、板状突部に対する横壁部の当接によって規制されるようになる。これによって、プレート部への衝撃荷重の入力時に、プレート部の前端部に対して、それを後方や下方に押圧するように加えられる押圧力に基づいて、プレート部の前側部分を持ち上げるような作用力が発生し、プレート部に対して、車両への取付部等を回転中心とした回転モーメントが加わえられたときにも、かかる取付部等を回転中心として、プレート部が回転するようなことが、有利に阻止され得る。そして、その結果、そのような回転によって、プレート部が、補強部により補強された前側部分よりも強度の低い後側部分において屈曲することが、極めて効果的に防止され得る。   That is, in the vehicle pedestrian protection device according to the present invention, a vertical wall portion extending in the height direction of the vehicle is integrally provided at the rear end portion of the plate portion, and at the upper portion of the vertical wall portion, A lateral wall portion extending rearward is integrally formed. For this reason, for example, in the case where a rigid plate-like protrusion that protrudes upward and spreads in the vehicle width direction is provided with respect to the mounted part of the vehicle to which the plate part is to be attached, the plate-like protrusion If the plate portion is arranged and attached to the vehicle so that the plate portion is positioned between the vertical wall portion and the horizontal wall portion, the displacement of the plate portion toward the vehicle rear side causes the vertical wall portion to abut against the plate-like protrusion. And the downward displacement of the plate portion is restricted by the contact of the lateral wall portion with the plate-like protrusion. As a result, when an impact load is input to the plate portion, the front portion of the plate portion is lifted based on the pressing force applied to the front end portion of the plate portion so as to press it backward or downward. When a force is generated and a rotational moment is applied to the plate part with the attachment part to the vehicle as the center of rotation, the plate part must rotate around the attachment part. Can be advantageously prevented. And as a result, it can prevent very effectively that a plate part bends in the rear side part where intensity | strength is lower than the front side part reinforced by the reinforcement part by such rotation.

従って、かくの如き本発明に従う車両用歩行者保護装置にあっては、歩行者の車両前面への衝突時に生ずる衝撃荷重の入力時に、プレート部の屈曲変形に起因して、歩行者保護性能が低下することが有利に防止され、以て、所望の歩行者保護性能が、極めて安定的に且つ確実に発揮され得ることとなるのである。   Therefore, in the vehicle pedestrian protection apparatus according to the present invention as described above, the pedestrian protection performance is caused by the bending deformation of the plate portion when the impact load generated when the pedestrian collides with the front surface of the vehicle. The reduction is advantageously prevented, so that the desired pedestrian protection performance can be exhibited very stably and reliably.

そして、本発明に従う車両用歩行者保護装置の取付構造にあっても、上記せる本発明に従う車両用歩行者保護装置において奏される作用・効果と実質的に同一の作用・効果が、極めて有効に享受され得るのである。   Even in the mounting structure for a pedestrian protection device for a vehicle according to the present invention, substantially the same operations and effects as those exhibited in the pedestrian protection device for a vehicle according to the present invention described above are extremely effective. Can be enjoyed.

以下、本発明を更に具体的に明らかにするために、本発明の実施の形態について、図面を参照しつつ、詳細に説明することとする。   Hereinafter, in order to clarify the present invention more specifically, embodiments of the present invention will be described in detail with reference to the drawings.

先ず、図１には、本発明に従う歩行者保護装置の一実施形態としての自動車の前面に設置されたフロントバンパの内側に取り付けられる歩行者保護装置が、その上面形態において、概略的に示されている。かかる図１から明らかなように、本実施形態の歩行者保護装置は、プレート部１０を有している。   First, FIG. 1 schematically shows a pedestrian protection device attached to the inside of a front bumper installed on the front surface of an automobile as an embodiment of a pedestrian protection device according to the present invention in the form of its top surface. ing. As is clear from FIG. 1, the pedestrian protection device of this embodiment has a plate portion 10.

このプレート部１０は、例えば、ポリプロピレンやＡＢＳ樹脂等の合成樹脂材料からなり、図１における左右方向で、歩行者保護装置の自動車への設置状態下において車幅方向、つまり自動車の左右方向に延びる方向（以下からは左右方向と言う）の寸法が、車幅よりも所定寸法だけ短く、且つ図１における上下方向で、自動車の前後方向に延びる方向（以下からは前後方向と言う）の寸法が、左右方向の寸法よりも十分に短くされた、全体として、略横長矩形状を呈する薄肉の平板材にて構成されている。   The plate portion 10 is made of, for example, a synthetic resin material such as polypropylene or ABS resin, and extends in the lateral direction in FIG. 1 in the vehicle width direction, that is, in the lateral direction of the automobile when the pedestrian protection device is installed in the automobile. The dimension of the direction (hereinafter referred to as the left-right direction) is shorter than the vehicle width by a predetermined dimension, and the dimension in the vertical direction in FIG. 1 is the direction extending in the front-rear direction of the automobile (hereinafter referred to as the front-rear direction). As a whole, it is made of a thin flat plate material having a substantially horizontally long rectangular shape that is sufficiently shorter than the dimension in the left-right direction.

図１及び図２に示されるように、かかるプレート部１０においては、後側の半分に満たない大きさの部分が、平板形態を呈し、歩行者保護装置の自動車への設置状態下において水平に広がる上面と下面とを備えた後側平板部１２とされている。また、そのような後側平板部１２を除く前側の部分のうち、前端側の部位が、後側平板部１２に対して、それよりも高い位置で、平行に延びる平板形態を呈する前側平板部１４とされている。更に、かかる前側部分の後端側部位、つまり前側平板部１４と後側平板部１２との間の中間部位が、前側平板部１４の後端から後側平板部１２の前端に向かって下傾して延び出して、それら両平板部１４，１２を一体的に連結する中間傾斜板部１６とされている。   As shown in FIG. 1 and FIG. 2, in such a plate portion 10, a portion having a size less than half of the rear side has a flat plate shape, and is horizontal in a state where the pedestrian protection device is installed in an automobile. It is set as the rear side flat plate part 12 provided with the upper surface and lower surface which spread. Moreover, the front side flat plate part which exhibits a flat plate shape extending in parallel at a position where the front end side is higher than the rear side flat plate part 12 among the front side portions excluding the rear side flat plate part 12. 14 and so on. Further, the rear end portion of the front portion, that is, the intermediate portion between the front flat plate portion 14 and the rear flat plate portion 12 is inclined downward from the rear end of the front flat plate portion 14 toward the front end of the rear flat plate portion 12. Thus, an intermediate inclined plate portion 16 that integrally connects the two flat plate portions 14 and 12 is formed.

そして、後側平板部１２の左右方向中央部位の後端部には、板厚方向に貫通する、所定の固定ボルト等が挿通可能な挿通孔１８が、左右方向に所定間隔をおいて複数（ここでは、３個）設けられている。後述するように、これら各挿通孔１８に挿通された固定ボルトによって、プレート部１０が、自動車に取り付けられるようになっている。このことから明らかなように、ここでは、後側平板部１２にて、車両に取り付けられるべき、プレート部の後側部分が構成されている。   A plurality of insertion holes 18 penetrating in the plate thickness direction and through which predetermined fixing bolts or the like can be inserted are provided at predetermined intervals in the left-right direction at the rear end portion of the central portion in the left-right direction of the rear flat plate portion 12 ( Here, three) are provided. As will be described later, the plate portion 10 is attached to the automobile by a fixing bolt inserted through each of the insertion holes 18. As is apparent from this, the rear flat plate portion 12 constitutes a rear portion of the plate portion to be attached to the vehicle.

一方、プレート部１０の前側平板部１４と中間傾斜板部１６には、それらの左右方向の両サイド部位を除いた中間部位に、補強ビード２０の複数（ここでは、５個）が、左右方向に一定の距離を隔てて、互いに隣り合うように位置せしめられた状態で、一体的に設けられている。これら複数の補強ビード２０は、何れも、プレート部１０の上面から上方に突出し、前側平板部１４の前後方向の中間部から中間傾斜板部１６の後端に至るまで、同一高さで、前後方向に真っ直ぐに延びる長手矩形筐体状の全体形状を有している。換言すれば、下方に向かって開口するコ字状の車幅方向断面形状を有して、前側平板部１４と中間傾斜板部１６とに跨って、前後方向に真っ直ぐに延びる凹溝形態を呈している。   On the other hand, the front side flat plate portion 14 and the intermediate inclined plate portion 16 of the plate portion 10 include a plurality of reinforcing beads 20 (here, five) in the left-right direction at intermediate portions excluding both side portions in the left-right direction. Are integrally provided in a state of being positioned adjacent to each other at a certain distance. The plurality of reinforcing beads 20 all protrude upward from the upper surface of the plate portion 10 and have the same height from the middle portion in the front-rear direction of the front flat plate portion 14 to the rear end of the intermediate inclined plate portion 16. It has an overall shape of a longitudinal rectangular casing extending straight in the direction. In other words, it has a U-shaped cross-sectional shape in the vehicle width direction that opens downward, and has a groove shape that extends straight across the front flat plate portion 14 and the intermediate inclined plate portion 16 in the front-rear direction. ing.

また、前側平板部１４においては、補強ビード２０の形成部位よりも前端側の部分に、薄肉平板形状を有して、前後方向に延びる前側補強リブ２２の複数が、互いに左右方向に間隔を隔てて、一体的に立設されている。更に、互いに隣り合う補強ビード２０同士の間にも、薄肉平板形状を有して、左右方向に延びる前側補強リブ２２が、補強ビード２０同士を連結するように、一体的に立設されている。   Moreover, in the front side flat plate part 14, the part of the front end side rather than the formation site | part of the reinforcement bead 20 has a thin flat plate shape, and the some of the front side reinforcement ribs 22 extended in the front-back direction are mutually spaced apart in the left-right direction. And are erected integrally. Further, between the reinforcing beads 20 adjacent to each other, a front reinforcing rib 22 having a thin flat plate shape and extending in the left-right direction is erected integrally so as to connect the reinforcing beads 20 to each other. .

このように、補強ビード２０や前側補強リブ２２が、前側平板部１４と中間傾斜板部１６に設けられていることによって、それら前側平板部１４と中間傾斜板部１６とに対して、十分な補強構造が付与されている。このことから明らかなように、本実施形態では、補強ビード２０と前側補強リブ２２とにて、補強部が構成され、また、そのような補強ビード２０と前側補強リブ２２とが設けられた前側平板部１４と中間傾斜板部１６とにて、補強部が設けられたプレート部の前側部分が構成されている。   As described above, the reinforcing bead 20 and the front reinforcing rib 22 are provided on the front flat plate portion 14 and the intermediate inclined plate portion 16, so that the front flat plate portion 14 and the intermediate inclined plate portion 16 are sufficiently provided. A reinforcing structure is provided. As is clear from this, in the present embodiment, the reinforcing bead 20 and the front reinforcing rib 22 constitute a reinforcing portion, and the front side on which such a reinforcing bead 20 and the front reinforcing rib 22 are provided. The flat plate portion 14 and the intermediate inclined plate portion 16 constitute a front portion of the plate portion provided with the reinforcing portion.

そして、かかる本実施形態の歩行者保護装置にあっては、図１及び図３から明らかなように、前側平板部１４と中間傾斜板部１６の補強ビード２０や前側補強リブ２２が設けられていない左右の両サイド部位に、それらが形成される中央部位よりも一段高くされた段差部２４が、それぞれ設けられている。この段差部２４も、その前側部分が、前側平板部１４よりも更に高い位置で、後側平板部１２や前側平板部１４と平行に広がる側方平板部２６とされている一方、後側部分が、側方平板部２６の後端から後側平板部１２の左右方向両端側部位の後端に向かって下傾して延び出して、それら側方平板部２６と後側平板部１２とを一体的に連結する側方傾斜板部２８とされている。   In the pedestrian protection apparatus according to this embodiment, as is apparent from FIGS. 1 and 3, the reinforcing bead 20 and the front reinforcing rib 22 of the front flat plate portion 14 and the intermediate inclined plate portion 16 are provided. Step portions 24 that are one step higher than the central portion where the left and right side portions are not provided are respectively provided. The step portion 24 also has a front side portion that is higher than the front side flat plate portion 14 and a side flat plate portion 26 that extends in parallel with the rear side flat plate portion 12 and the front side flat plate portion 14. However, it extends downwardly from the rear end of the side flat plate portion 26 toward the rear ends of the left and right end portions of the rear flat plate portion 12 so that the side flat plate portion 26 and the rear flat plate portion 12 are connected. It is set as the side inclination board part 28 connected integrally.

そのような段差部２４の側方平板部２６の上面と下面には、前後方向と左右方向とにそれぞれ延び出して、互いに直交する薄肉平板状の第一補強リブ３０と第二補強リブ３２が、それぞれ、複数個ずつ一体形成されている。   On the upper surface and the lower surface of the side flat plate portion 26 of the stepped portion 24, there are thin flat plate-like first reinforcing ribs 30 and second reinforcing ribs 32 extending in the front-rear direction and the left-right direction, respectively. Each of these is integrally formed.

一方、段差部２４の側方傾斜板部２８の上面（側方平板部２６の上面と連続する面で、且つ後方に向かって位置する面）には、第一平行板部３４と第二平行板部３６とが、上下方向に所定距離を隔てた位置において、後方に向かって、互いに平行に且つ後側平板部１２とも平行に延び出すようにして、一体形成されている。これら第一平行板部３４と第二平行板部３６は、何れも、側方平板部２６と略同一の厚さ及び幅を有する矩形の平板形状を有しており、それぞれの後端側部分が、後側平板部１２の上方において、後側平板部１２と所定距離を隔てて、対向配置されている。   On the other hand, the first parallel plate portion 34 and the second parallel plate are formed on the upper surface of the side inclined plate portion 28 of the step portion 24 (a surface continuous with the upper surface of the side flat plate portion 26 and located rearward). The plate portion 36 is integrally formed so as to extend rearwardly in parallel with each other and with the rear flat plate portion 12 at a position separated by a predetermined distance in the vertical direction. Each of the first parallel plate portion 34 and the second parallel plate portion 36 has a rectangular flat plate shape having substantially the same thickness and width as the side flat plate portion 26, and each rear end side portion. However, the rear plate portion 12 is opposed to the rear plate portion 12 at a predetermined distance above the rear plate portion 12.

そして、後側平板部１２の上方に位置する、第一平行板部３４の後端には、後側平板部１２と直角な上方に向かって所定高さで延びる縦壁部３８が、一体的に設けられている。この縦壁部３８は、第一平行板部３４や側方平板部２６と略同一の厚さ及び幅を有する矩形の平板形状を有している。即ち、縦壁部３８は、プレート部１０に対して、後側平板部１２の上方に位置するように一体形成されており、かかるプレート部１０（歩行者保護装置）の自動車への設置状態下で、自動車の高さ方向に延び出し、且つ車幅方向に広がって、配置されるようになっている。そして、このような縦壁部３８の後面が、縦壁部３８の配置形態と同様に、プレート部１０の自動車への設置状態下で、自動車の高さ方向に延び出し、且つ車幅方向に広がる後側接触面４０とされている。   A vertical wall 38 extending at a predetermined height toward the upper side perpendicular to the rear flat plate portion 12 is integrally formed at the rear end of the first parallel plate portion 34 located above the rear flat plate portion 12. Is provided. The vertical wall portion 38 has a rectangular flat plate shape having substantially the same thickness and width as the first parallel plate portion 34 and the side flat plate portion 26. That is, the vertical wall portion 38 is integrally formed with the plate portion 10 so as to be positioned above the rear flat plate portion 12, and the plate portion 10 (pedestrian protection device) is installed in the automobile. Thus, it is arranged so as to extend in the height direction of the automobile and spread in the vehicle width direction. And the rear surface of such a vertical wall part 38 is extended in the height direction of a motor vehicle in the installation state in the motor vehicle of the plate part 10 similarly to the arrangement | positioning form of the vertical wall part 38, and in the vehicle width direction. The rear contact surface 40 is widened.

また、かかる縦壁部３８は、側方平板部２６に左右方向に延びるように設けられた複数の第二補強リブ３２のうち、側方平板部２６の後端側部位に位置する第二補強リブ３２と、前後方向に所定距離隔てて対向配置されている。そして、この第二補強リブ３２と縦壁部３８との間には、側方平板部２６に対して前後方向に延びるように設けられた第一補強リブ３０が、側方平板部２６から延長して延び出して、それら第二補強リブ３２と縦壁部３８とを相互に連結するように一体形成されている。第一平行板部３４と第二平行板部３６との間にも、第二補強リブ３２と縦壁部３８との間に延びる第一補強リブ３０に対応位置して、前後方向に延びる第一補強リブ３０が、第一及び第二平行板部３４，３６同士を連結するように、複数設けられている。これによって、第一及び第二平行板部３４，３６、更にはそれに一体形成された縦壁部３８の変形強度が、有利に高められている。   Further, the vertical wall portion 38 is a second reinforcement located at the rear end side portion of the side flat plate portion 26 among the plurality of second reinforcing ribs 32 provided to extend in the left-right direction on the side flat plate portion 26. The ribs 32 are arranged to face each other at a predetermined distance in the front-rear direction. A first reinforcing rib 30 provided so as to extend in the front-rear direction with respect to the side flat plate portion 26 is extended from the side flat plate portion 26 between the second reinforcing rib 32 and the vertical wall portion 38. The second reinforcing rib 32 and the vertical wall portion 38 are integrally formed so as to extend. Between the first parallel plate portion 34 and the second parallel plate portion 36, the first reinforcing rib 30 extending between the second reinforcing rib 32 and the vertical wall portion 38 is positioned so as to extend in the front-rear direction. A plurality of reinforcing ribs 30 are provided so as to connect the first and second parallel plate portions 34 and 36 to each other. Thereby, the deformation strength of the first and second parallel plate portions 34 and 36 and the vertical wall portion 38 integrally formed therewith is advantageously increased.

そして、そのような縦壁部３８の後面の高さ方向中間部には、横壁部４２が、後方に向かって、後側平板部１２と平行に延びるようにして、一体形成されている。この横壁部４２、縦壁部３８と略同一の厚さ及び幅を有する矩形の平板形状を有している。即ち、横壁部４２は、プレート部１０に対して、後側平板部１２の上方に位置するように一体形成されており、また、かかるプレート部１０（歩行者保護装置）の自動車への設置状態下で、自動車の前後方向に延び出し、且つ車幅方向に広がって、配置されるようになっている。そして、このような横壁部４２の下面が、横壁部４２の配置形態と同様に、プレート部１０の自動車への設置状態下で、自動車の前後方向に延び出し、且つ車幅方向に広がる下側接触面４４とされている。   And the horizontal wall part 42 is integrally formed in the height direction intermediate part of the rear surface of such a vertical wall part 38 so that it may extend in parallel with the back side flat plate part 12 toward back. The horizontal wall 42 and the vertical wall 38 have a rectangular flat plate shape having substantially the same thickness and width. That is, the lateral wall portion 42 is integrally formed with the plate portion 10 so as to be positioned above the rear flat plate portion 12, and the plate portion 10 (pedestrian protection device) is installed in an automobile. Below, it extends in the front-rear direction of the automobile and extends in the vehicle width direction. And the lower surface of such a lateral wall part 42 extends in the front-rear direction of the automobile and spreads in the vehicle width direction under the installation state of the plate part 10 in the automobile, as in the arrangement form of the lateral wall part 42. A contact surface 44 is provided.

換言すれば、本実施形態では、前後方向に延び出して、且つ左右方向に広がる平板の前側部分を下側に屈曲してなる如き形態を有する屈曲板部が、プレート部１０の左右方向の両側端部に対して、後側平板部１２の上方に位置するように、それぞれ一体形成され、それら各屈曲板部の上下方向に延びる前側部分にて、縦壁部３８が構成されている一方、前後方向に延びる後側部分にて、横壁部４２が構成されている。そして、それにより、上下方向に延びる縦壁部３８の後側接触面４０と、前後方向に延びる横壁部４２の下側接触面４４とにて、所定の角度（ここでは９０°）で屈曲する、一つの連続した屈曲面からなるストッパ面が、プレート部１０の左右方向の両側端部において、後側平板部１２の上方に位置するように形成されているのである。   In other words, in the present embodiment, the bent plate portions having such a shape that the front portion of the flat plate extending in the front-rear direction and extending in the left-right direction is bent downward are provided on both sides of the plate portion 10 in the left-right direction. While the end portion is integrally formed so as to be located above the rear flat plate portion 12, the vertical wall portion 38 is formed at the front portion extending in the vertical direction of each bent plate portion, A lateral wall portion 42 is formed at a rear side portion extending in the front-rear direction. Accordingly, the rear contact surface 40 of the vertical wall portion 38 extending in the vertical direction and the lower contact surface 44 of the horizontal wall portion 42 extending in the front-rear direction are bent at a predetermined angle (90 ° here). The stopper surface composed of one continuous bent surface is formed so as to be positioned above the rear flat plate portion 12 at both lateral ends of the plate portion 10.

なお、横壁部４２の後端には、上方に向かって、縦壁部３８と平行に延びる補助壁部４６が、縦壁部３８の上端側部位と前後方向に所定距離を隔てて対向位置するように一体形成されている。そして、それら縦壁部３８と補助壁部４６との間にも、第二補強リブ３２と縦壁部３８との間に延びる第一補強リブ３０に対応位置して、前後方向に延びる第一補強リブ３０が、縦壁部３８と補助壁部４６とを互いに連結するように、複数設けられている。これによって、横壁部４２の変形強度が、有利に高められている。   At the rear end of the horizontal wall portion 42, an auxiliary wall portion 46 that extends upward and in parallel with the vertical wall portion 38 is opposed to the upper end side portion of the vertical wall portion 38 with a predetermined distance in the front-rear direction. Are integrally formed. And between these vertical wall part 38 and the auxiliary wall part 46, it is located corresponding to the 1st reinforcement rib 30 extended between the 2nd reinforcement rib 32 and the vertical wall part 38, and the 1st extended in the front-back direction. A plurality of reinforcing ribs 30 are provided so as to connect the vertical wall portion 38 and the auxiliary wall portion 46 to each other. Thereby, the deformation strength of the lateral wall portion 42 is advantageously increased.

そして、かくの如き構造とされた本実施形態の歩行者保護装置は、例えば、図４に示されるような構造において、自動車の前部の下部部位に取り付けられる。   And the pedestrian protection apparatus of this embodiment made into such a structure is attached to the lower site | part of the front part of a motor vehicle in the structure as shown, for example in FIG.

すなわち、歩行者保護装置は、補強ビード２０や前側補強リブ２２が複数設けられたプレート部１０の前側平板部１４を自動車の前面から突出させて、その前端部を、図示しないフロントバンパのバンパカバー内に突入させる一方、プレート部１０の後側後側平板部１２を前後方向に水平に延出させて、かかる後側平板部１２における後端部の上面を、自動車の前部に、車幅方向に延びるように固設された、ラジエータ４８を支持するラジエータサポート５０の下面に接触させた状態で、配置される。そして、後側平板部１２の後端部に設けられた複数の挿通孔１８に、固定ボルト５２がそれぞれ１個ずつ挿通されて、それら各固定ボルト５２がラジエータサポート５０に螺入されることで、プレート部１０の後側平板部１２が、その後端部において、ラジエータサポート５０に固定される。   That is, the pedestrian protection device projects the front flat plate portion 14 of the plate portion 10 provided with a plurality of reinforcing beads 20 and front reinforcing ribs 22 from the front surface of the automobile, and the front end portion thereof is a bumper cover of a front bumper (not shown). On the other hand, the rear rear flat plate portion 12 of the plate portion 10 is extended horizontally in the front-rear direction, and the upper surface of the rear end portion of the rear flat plate portion 12 is placed on the front portion of the automobile. It arrange | positions in the state contacted to the lower surface of the radiator support 50 which supports the radiator 48 fixedly extended in the direction. Then, one fixing bolt 52 is inserted into each of the plurality of insertion holes 18 provided in the rear end portion of the rear flat plate portion 12, and each of the fixing bolts 52 is screwed into the radiator support 50. The rear flat plate portion 12 of the plate portion 10 is fixed to the radiator support 50 at the rear end portion.

ここで、ラジエータサポート５０には、各種の理由から、車幅方向の両側の各端部に、上方に向かって突出し、且つ車幅方向に広がる板状形態を呈する金属製の板状突部５４が設けられる場合が多い。そこで、本実施形態の歩行者保護装置にあっては、ラジエータサポート５０に取り付けられる取付部位たるプレート部１０の後側平板部１２上に位置して、上下方向に延びる縦壁部３８の後側接触面４０が、かかる板状突部５４の先端に対して、それよりも水平方向の前方側に、所定距離を隔てて位置せしめられると共に、左右方向に延びる横壁部４２の下側接触面４４が、板状突部５４の先端に対して、それよりも鉛直方向の上方に離間位置せしめられた状態で、プレート部１０が、自動車の前部の下部部位に配置される。そして、そのような配置状態下で、上記の如く、プレート部１０が、ラジエータサポート５０に対してボルト固定される。   Here, for various reasons, the radiator support 50 has a metal plate-like protrusion 54 that protrudes upward at each end on both sides in the vehicle width direction and has a plate-like shape extending in the vehicle width direction. Is often provided. Therefore, in the pedestrian protection device of the present embodiment, the rear side of the vertical wall portion 38 that is positioned on the rear flat plate portion 12 that is an attachment portion to be attached to the radiator support 50 and extends in the vertical direction. The contact surface 40 is positioned at a predetermined distance from the front end of the plate-like protrusion 54 in the horizontal direction with a predetermined distance, and the lower contact surface 44 of the lateral wall portion 42 extending in the left-right direction. However, the plate portion 10 is disposed in the lower portion of the front portion of the automobile in a state where the plate portion 54 is spaced apart from the tip of the plate-like protrusion 54 in the vertical direction. Then, under such an arrangement state, the plate portion 10 is bolted to the radiator support 50 as described above.

かくして、歩行者保護装置が、自動車前面の下部部位に、前後方向に水平に延びるように配されて、プレート部１０の前端部をバンパカバー内に突入させつつ、その全体が、バンパカバーに入力される衝撃荷重の入力方向を含む水平面に平行に延出位置せしめられるのである。   Thus, the pedestrian protection device is arranged at the lower part of the front surface of the automobile so as to extend horizontally in the front-rear direction, and the entire front end of the plate part 10 enters the bumper cover, and the whole is input to the bumper cover. It is made to extend in parallel to the horizontal plane including the input direction of the impact load to be applied.

従って、本実施形態の歩行者保護装置にあっては、自動車前面への設置状態下で、歩行者が自動車前面に衝突して、歩行者の脚部がフロントバンパのバンパカバーに接触乃至は衝突せしめられた際に、かかる歩行者の脚部が、バンパカバーを介して、プレート部１０の前端部に接触する。このとき、プレート部１０の前側平板部１４と中間傾斜板部１６とからなる前側部分が複数の補強ビード２０と複数の前側補強リブ２２とによって補強されているため、かかるプレート部１０の前端部への衝撃荷重の入力により、プレート部１０において生ずる衝撃荷重に対する反力が、歩行者の脚部に対して、瞬時に且つ確実に作用せしめられる。その結果、歩行者が、自動車のボンネットにて受け止められて、衝撃吸収が図られることで、歩行者の保護及び安全が効果的に図られ得るようになっているのである。   Therefore, in the pedestrian protection device according to the present embodiment, the pedestrian collides with the front of the automobile and the pedestrian's legs contact or collide with the bumper cover of the front bumper under the installation state on the front of the automobile. When squeezed, the leg portion of the pedestrian comes into contact with the front end portion of the plate portion 10 via the bumper cover. At this time, the front side portion of the plate portion 10 consisting of the front flat plate portion 14 and the intermediate inclined plate portion 16 is reinforced by the plurality of reinforcing beads 20 and the plurality of front reinforcing ribs 22. By inputting the impact load to the pedestrian, a reaction force against the impact load generated in the plate portion 10 is instantaneously and reliably applied to the pedestrian's leg portion. As a result, the pedestrian is received by the hood of the automobile and the impact is absorbed, so that the protection and safety of the pedestrian can be effectively achieved.

そして、かかる歩行者保護装置においては、特に、前述せる如く、プレート部１０のラジエータサポート５０への取付状態下で、上下方向に延びる縦壁部３８の後側接触面４０と左右方向、つまり車幅方向に延びる横壁部４２の下側接触面４４とが、ラジエータサポート５０から延び出す板状突部５４に対して、自動車の前方と上方とに離間位置せしめられて、かかる板状突部５４の先端部をくわえ込むように配置される。   In such a pedestrian protection device, as described above, in particular, when the plate portion 10 is attached to the radiator support 50, the rear side contact surface 40 extending in the up-down direction and the left-right direction, that is, the vehicle, The lower contact surface 44 of the lateral wall portion 42 extending in the width direction is spaced apart from the plate-like protrusion 54 extending from the radiator support 50 at the front and the upper side of the automobile, and the plate-like protrusion 54. It is arranged so as to hold the tip of.

このため、プレート部１０の前端部への衝撃荷重の入力時には、図４に白抜きの矢印：アで示されるように、プレート部１０を後方側向かって押圧する作用力によって、歩行者保護装置の全体が、主に、プレート部１０の挿通孔１８の内周面と固定ボルト５２の外周面との間に存在するスキの分だけ、後方に変位させられるようになるが、このとき、図４に二点差線で示されるように、板状突部５４の先端が、縦壁部３８の後側接触面４０に当接する。これによって、歩行者保護装置の後方への変位が規制されるようになる。   For this reason, when an impact load is input to the front end portion of the plate portion 10, a pedestrian protection device is applied by an action force that presses the plate portion 10 rearward as shown by a white arrow: A in FIG. Is displaced rearward mainly by the gap existing between the inner peripheral surface of the insertion hole 18 of the plate portion 10 and the outer peripheral surface of the fixing bolt 52. 4, the tip of the plate-like protrusion 54 comes into contact with the rear contact surface 40 of the vertical wall portion 38. Thereby, the rearward displacement of the pedestrian protection device is regulated.

また、本実施形態の歩行者保護装置では、衝撃荷重の入力位置たるプレート部１０の前端部が、プレート部１０のラジエータサポート５０への取付部位よりも高い位置にあるため、プレート部１０の前端部への衝撃荷重の入力時に、プレート部１０を後方側向かって押圧する作用力に加えて、図５に白抜きの矢印：イで示されるように、プレート部１０を下側に向かって押圧する作用力が加えられる。それによって、歩行者保護装置の全体が、下側に変位させられるようになるが、このとき、図５に二点差線で示されるように、板状突部５４の先端が、横壁部４２の下側接触面４４に当接し、以て、歩行者保護装置の下側への変位が規制されるようになる。   Moreover, in the pedestrian protection apparatus of this embodiment, since the front end part of the plate part 10 which is an input position of an impact load is located at a position higher than the attachment part of the plate part 10 to the radiator support 50, the front end of the plate part 10 When an impact load is applied to the part, in addition to the acting force that pushes the plate part 10 toward the rear side, the plate part 10 is pushed downwardly as shown by the white arrow in FIG. Acting force is applied. As a result, the entire pedestrian protection device can be displaced downward. At this time, as shown by a two-dot chain line in FIG. Abutting on the lower contact surface 44, the displacement of the pedestrian protection device to the lower side is regulated.

そして、そのように、縦壁部３８の後側接触面４０と横壁部４２の下側接触面４４とに対する板状突部５４の先端の当接によって、歩行者保護装置の後方側と下側への変位が規制されるようになっているところから、プレート部１０の前端部への衝撃荷重の入力時に、プレート部１０を後方や下方に押圧する押圧力に基づいて、図５に矢印：ウで示されるように、プレート部１０の前端部を持ち上げる方向に、例えば、プレート部１０の中間傾斜板部１６と後側平板部１２との境界の屈曲部やプレート部１０のラジエータサポート５０へのボルト固定部位を回転中心として回転させる回転力が加えられても、歩行者保護装置が、それらの屈曲部や固定部位を回転中心として回転させられることが、阻止されるようになる。   Then, the rear side and the lower side of the pedestrian protection device are brought into contact with the rear contact surface 40 of the vertical wall portion 38 and the lower contact surface 44 of the horizontal wall portion 42 in such a manner. 5 is controlled based on the pressing force that presses the plate portion 10 backward or downward when an impact load is applied to the front end portion of the plate portion 10. As shown in (c), in the direction of lifting the front end portion of the plate portion 10, for example, to the bent portion at the boundary between the intermediate inclined plate portion 16 and the rear flat plate portion 12 of the plate portion 10 or the radiator support 50 of the plate portion 10. Even if a rotational force is applied to rotate the bolt fixing portion as the rotation center, the pedestrian protection device is prevented from rotating around the bent portion or the fixing portion as the rotation center.

しかも、縦壁部３８と横壁部４２とが、ラジエータサポート５０に固定するための固定ボルト５２が存在しないプレート部１０の左右方向の両端側部位に設けられている。それ故、ラジエータサポート５０に固定されないために、上記のプレート部１０に対する回転力が発生し易いプレート部１０の左右方向の両端側部位での回転が、より有効に規制される。   In addition, the vertical wall portion 38 and the horizontal wall portion 42 are provided at both end portions in the left-right direction of the plate portion 10 where the fixing bolts 52 for fixing to the radiator support 50 are not present. Therefore, since it is not fixed to the radiator support 50, the rotation of the plate portion 10 where the rotational force with respect to the plate portion 10 is easily generated at both ends in the left-right direction is more effectively regulated.

これによって、かかる歩行者保護装置では、プレート部１０の前端部への衝撃荷重の入力によりプレート部１０が回転させられるときに、その回転中心となり易い中間傾斜板部１６と後側平板部１２との境界の屈曲部分や、後側平板部１２のラジエータサポート５０への固定部位等において屈曲することが、効果的に防止されるようになっている。   Accordingly, in such a pedestrian protection device, when the plate portion 10 is rotated by the input of an impact load to the front end portion of the plate portion 10, the intermediate inclined plate portion 16 and the rear flat plate portion 12 that are likely to be the center of rotation are provided. It is possible to effectively prevent the bent portion of the boundary, the bent portion of the rear flat plate portion 12 from being fixed to the radiator support 50, and the like.

従って、かくの如き本実施形態の歩行者保護装置にあっては、歩行者の自動車前面への衝突時に生ずる衝撃荷重の入力時に、プレート部１０の屈曲変形に起因して、歩行者保護性能が低下することが有利に防止され、以て、所望の歩行者保護性能が、極めて安定的に且つ確実に発揮され得ることとなるのである。   Therefore, in the pedestrian protection apparatus of this embodiment as described above, the pedestrian protection performance is caused by the bending deformation of the plate portion 10 when the impact load generated when the pedestrian collides with the front of the automobile. The reduction is advantageously prevented, so that the desired pedestrian protection performance can be exhibited very stably and reliably.

また、本実施形態では、縦壁部３８の前面と横壁部４２の上面とに対して、第一補強リブ３０が一体形成されて、それら縦壁部３８と横壁部４２の強度が有利に高められている。それ故、プレート部１０に対する衝撃荷重の入力に起因したプレート部１０の変位によって、縦壁部３８や横壁部４２が、ラジエータサポート５０に設けられる板状突部５４に当接した際に、そのときの衝撃により、それら縦壁部３８や横壁部４２が変形し、それが、プレート部１０の変位規制に悪影響を及ぼすようなことが有利に防止され得る。その結果として、歩行者保護性能が、より安定的に発揮され得ることとなる。   In the present embodiment, the first reinforcing ribs 30 are integrally formed on the front surface of the vertical wall portion 38 and the upper surface of the horizontal wall portion 42, and the strength of the vertical wall portion 38 and the horizontal wall portion 42 is advantageously increased. It has been. Therefore, when the vertical wall 38 and the horizontal wall 42 come into contact with the plate-like protrusion 54 provided on the radiator support 50 due to the displacement of the plate 10 due to the input of the impact load to the plate 10, The vertical wall portion 38 and the horizontal wall portion 42 may be deformed by an impact at times, which can be advantageously prevented from adversely affecting the displacement regulation of the plate portion 10. As a result, the pedestrian protection performance can be more stably exhibited.

さらに、本実施形態の歩行者保護装置においては、他の部位に比して、回転モーメントが発生し易いプレート部１０の左右方向の両側の端部に、縦壁部３８と横壁部４２が設けられて、プレート部１０の変位及び回転規制が図られているため、そのようなプレート部１０の変位や回転に起因した屈曲変形が、更に確実に防止され、これによっても、より安定した歩行者保護性能が、更に確実に発揮され得るのである。   Furthermore, in the pedestrian protection device of the present embodiment, the vertical wall portion 38 and the horizontal wall portion 42 are provided at the ends on both sides in the left-right direction of the plate portion 10 where a rotational moment is likely to occur as compared with other portions. Therefore, since the displacement and rotation of the plate portion 10 are restricted, bending deformation due to such displacement and rotation of the plate portion 10 can be prevented more reliably, and this also enables a more stable pedestrian. The protective performance can be more reliably exhibited.

また、かかる歩行者保護装置では、プレート部１０の前端部が、自動車に取り付けられるプレート部１０の後端部よりも上側に位置せしめられているために、衝撃荷重の入力時に、プレート部１０の回転が発生し易くなっているものの、縦壁部３８と横壁部４２とによるプレート部１０の変位規制に基づいて、そのようなプレート部１０の回転が有利に阻止され得る。それ故、優れた歩行者保護性能が効果的に確保され得る。   Moreover, in this pedestrian protection device, since the front end portion of the plate portion 10 is positioned above the rear end portion of the plate portion 10 attached to the automobile, when the impact load is input, Although rotation is likely to occur, such rotation of the plate portion 10 can be advantageously prevented based on the displacement restriction of the plate portion 10 by the vertical wall portion 38 and the horizontal wall portion 42. Therefore, excellent pedestrian protection performance can be effectively ensured.

以上、本発明の具体的な構成について詳述してきたが、これはあくまでも例示に過ぎないのであって、本発明は、上記の記載によって、何等の制約をも受けるものではない。   The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention is not limited by the above description.

例えば、縦壁部３８と横壁部４２は、プレート部１０に対して、その後側部分に位置するように設けられておれば良い。従って、例えば、図６に示されるように、プレート部１０の後側部分たる後側平板部１２に対して、縦壁部３８を上方に延びるように一体的に立設すると共に、この縦壁部３８に対して、その上側部位から後方に延び出すように一体形成することも出来る。なお、図６に示された実施形態に関しては、図１乃至図５に示された前記実施形態と同一の構造とされた部材及び部位について、図１乃至図５と同一の符号を付すことにより、その詳細な説明は省略した。   For example, the vertical wall part 38 and the horizontal wall part 42 should just be provided so that it may be located in the back side part with respect to the plate part 10. FIG. Therefore, for example, as shown in FIG. 6, the vertical wall portion 38 is erected integrally with the rear flat plate portion 12 as the rear portion of the plate portion 10 so as to extend upward. It can also be formed integrally with the portion 38 so as to extend rearward from the upper portion thereof. For the embodiment shown in FIG. 6, members and parts having the same structure as the embodiment shown in FIGS. 1 to 5 are denoted by the same reference numerals as in FIGS. 1 to 5. Detailed description thereof is omitted.

また、縦壁部３８における横壁部４２の形成位置は、板状突部５４と接触する縦壁部３８の後側接触面４０が確保され得る位置ならば、特に限定されるものではない。即ち、横壁部４２は、縦壁部３８の下端部の除いた高さ方向中間部や上端部を含む上側部位のうちの何れの部位に設けられていても良いのである。   Moreover, the formation position of the horizontal wall part 42 in the vertical wall part 38 will not be specifically limited if the rear side contact surface 40 of the vertical wall part 38 which contacts the plate-shaped protrusion 54 can be ensured. That is, the horizontal wall portion 42 may be provided in any portion of the upper portion including the intermediate portion in the height direction and the upper end portion excluding the lower end portion of the vertical wall portion 38.

それら縦壁部３８と横壁部４２のプレート部１０に対する形成位置は、板状突部５４の配設位置に応じて適宜に変更され得るものである。それ故、縦壁部３８と横壁部４２は、例示されたプレート部１０の左右方向両側端部に限らず、プレート部１０の左右方向の中間部に設けられていても良く、或いは縦壁部３８と横壁部４２のうちの少なくとも何れか一方が、プレート部１０の左右方向の幅と同一の幅を有して、プレート部１０の全幅に亘って連続して広がるように形成されていても、何等差し支えない。   The formation positions of the vertical wall part 38 and the horizontal wall part 42 with respect to the plate part 10 can be appropriately changed according to the arrangement position of the plate-like protrusions 54. Therefore, the vertical wall portion 38 and the horizontal wall portion 42 are not limited to the left and right side end portions of the illustrated plate portion 10, and may be provided in the middle portion in the left and right direction of the plate portion 10, or the vertical wall portion. 38 and at least one of the lateral wall portions 42 has the same width as the width in the left-right direction of the plate portion 10 and is formed so as to continuously spread over the entire width of the plate portion 10. There is no problem.

また、プレート部１０の左右方向両側端部に設けられた段差部２４は、本発明において必須のものではない。   Moreover, the step part 24 provided in the left-right direction both ends of the plate part 10 is not essential in this invention.

板状突部５４の形状や形成位置も、例示のものに何等限定されるものではない。   The shape and the formation position of the plate-like protrusion 54 are not limited to the examples.

プレート部１０の前側部分に設けられる補強部は、例えば、補強ビードだけにて、或いは補強リブのみによっても構成され、更には、それら補強ビードや補強リブ以外の構造体等によっても構成され得る。なお、補強部を補強ビードや補強リブにて構成する場合にあっても、それら補強ビードや補強リブの全体形状や断面形状、或いは配設形態、配設個数等は、プレート１０の大きさ等に応じて適宜に決定されるところである。   The reinforcement part provided in the front side part of the plate part 10 is comprised only with a reinforcement bead, or only with a reinforcement rib, for example, Furthermore, it can also be comprised with structures other than these reinforcement beads and a reinforcement rib. Even when the reinforcing portion is formed of reinforcing beads or reinforcing ribs, the overall shape, cross-sectional shape, arrangement form, number of arrangements, etc. of the reinforcing beads and reinforcing ribs are the size of the plate 10 and the like. Is appropriately determined according to

プレート部１０の全体形状も、例示された形状に、特に限定されるものではなく、例えば、屈曲部のない平板形状とされていても、何等差し支えない。   The overall shape of the plate portion 10 is not particularly limited to the illustrated shape. For example, the plate portion 10 may have a flat plate shape without a bent portion.

また、前記実施形態では、歩行者保護装置の全体が、合成樹脂材料を用いて形成されていたが、この歩行者用保護装置としての歩行者保護装置の材質は、何等これに限定されるものではなく、例えば、アルミニウムやアルミニウム合金等の比較的に軽量で、成形性に優れた金属材料を用いて構成することも出来る。   Moreover, in the said embodiment, although the whole pedestrian protection apparatus was formed using the synthetic resin material, the material of the pedestrian protection apparatus as this pedestrian protection apparatus is what is limited to this at all Instead, for example, a metal material that is relatively lightweight and excellent in formability, such as aluminum or an aluminum alloy, may be used.

さらに、車両前部の下部部位への歩行者用保護装置（歩行者保護装置）の設置構造も、例示の構造に、特に限定されるものではない。即ち、プレート部（プレート部１０）の後側部分（後側平板部１２）が固定される車両の部位や固定方式が、種々変更され得るのである。   Furthermore, the installation structure of the pedestrian protection device (pedestrian protection device) in the lower part of the front portion of the vehicle is not particularly limited to the illustrated structure. In other words, the vehicle portion and the fixing method to which the rear portion (rear flat plate portion 12) of the plate portion (plate portion 10) is fixed can be variously changed.

加えて、本発明は、自動車の前部の下部部位に取り付けられる歩行者保護装置と、かかる歩行者保護装置の自動車への取付構造の他、自動車以外の車両の前部の下部部位に取り付けられる車両用歩行者保護装置と、かかる車両用歩行者保護装置の車両への取付構造の何れに対しても、有利に適用され得るものであることは、勿論である。   In addition, this invention is attached to the lower part of the front part of vehicles other than a motor vehicle besides the pedestrian protection apparatus attached to the lower part of the front part of a motor vehicle, the attachment structure to the motor vehicle of this pedestrian protection device. Of course, the present invention can be advantageously applied to both the pedestrian protection device for vehicles and the structure for mounting the pedestrian protection device for vehicles on the vehicle.

以上、本発明の具体的な構成について詳述してきたが、これはあくまでも例示に過ぎないのであって、本発明は、各種の形態において実施され得るものである。従って、当業者の知識に基づいて採用される本発明についての種々なる変更、修正、改良に係る各種の実施の形態が、何れも、本発明の趣旨を逸脱しない限りにおいて、本発明の範疇に属するものであることが、理解されるべきである。   The specific configuration of the present invention has been described in detail above. However, this is merely an example, and the present invention can be implemented in various forms. Accordingly, various embodiments relating to various changes, modifications, and improvements of the present invention adopted based on the knowledge of those skilled in the art are all within the scope of the present invention without departing from the spirit of the present invention. It should be understood that it belongs.

本発明に従う構造を有する歩行者保護装置の一実施形態を示す上面説明図である。It is upper surface explanatory drawing which shows one Embodiment of the pedestrian protection apparatus which has a structure according to this invention. 図１におけるII−II断面拡大説明図である。It is II-II cross-section expansion explanatory drawing in FIG. 図１におけるIII−III断面拡大説明図である。It is III-III cross-section expansion explanatory drawing in FIG. 図１に示される歩行者保護装置を車両に取り付けた状態の一例を示す説明図である。It is explanatory drawing which shows an example of the state which attached the pedestrian protection apparatus shown by FIG. 1 to the vehicle. 図１に示される歩行者保護装置が取り付けられた車両の前面に歩行者が衝突した際における歩行者保護装置の変形状態を説明するための図である。It is a figure for demonstrating the deformation | transformation state of a pedestrian protection apparatus when a pedestrian collides with the front surface of the vehicle with which the pedestrian protection apparatus shown by FIG. 1 was attached. 本発明に従う構造を有する歩行者保護装置の別の実施形態を示す図４に対応する図である。It is a figure corresponding to FIG. 4 which shows another embodiment of the pedestrian protection apparatus which has a structure according to this invention.

符号の説明Explanation of symbols

１０ プレート部 １２ 後側平板部
１４ 前側平板部 １６ 中間傾斜板部
２０ 補強ビード ２２ 前側補強リブ
３０ 第一補強リブ ３２ 第二補強リブ
３８ 縦壁部 ４２ 横壁部
５０ ラジエータサポート ４４ 板状突部
DESCRIPTION OF SYMBOLS 10 Plate part 12 Rear side flat plate part 14 Front side flat plate part 16 Intermediate inclination board part 20 Reinforcement bead 22 Front side reinforcement rib 30 First reinforcement rib 32 Second reinforcement rib 38 Vertical wall part 42 Horizontal wall part 50 Radiator support 44 Plate-like protrusion

Claims (4)

車両の前部の下部部位に、車両の前後方向に延びるように配置されて、後側部分において車両に取り付けられると共に、前側部分に補強部が設けられたプレート部を有し、該プレート部の前端部において、車両の前面に衝突した歩行者の脚部に接触することにより、該脚部を保護し得るように構成した車両用歩行者保護装置であって、
車両の高さ方向に延び出して、且つ車幅方向に広がる縦壁部が、前記プレート部に対して、前記後側部分に位置するように一体形成されていると共に、該縦壁部の上側部位から車両の後方に延び出して、且つ車幅方向に広がる横壁部が、該縦壁部に一体形成されていることを特徴とする車両用歩行者保護装置。 It is arranged at a lower part of the front part of the vehicle so as to extend in the front-rear direction of the vehicle, and is attached to the vehicle at the rear part, and has a plate part provided with a reinforcing part at the front part, A pedestrian protection device for a vehicle configured to protect the legs by contacting the legs of a pedestrian that has collided with the front of the vehicle at the front end,
A vertical wall portion extending in the vehicle height direction and extending in the vehicle width direction is formed integrally with the plate portion so as to be positioned at the rear side portion, and above the vertical wall portion. A pedestrian protection device for vehicles, wherein a lateral wall portion extending rearward from the part and extending in the vehicle width direction is formed integrally with the longitudinal wall portion. 前記縦壁部の前面と前記横壁部の上面とに対して、補強リブが、それぞれ一体形成されている請求項１に記載の車両用歩行者保護装置。   The pedestrian protection device for a vehicle according to claim 1, wherein reinforcing ribs are integrally formed on the front surface of the vertical wall portion and the upper surface of the horizontal wall portion. 前記縦壁部が、前記プレート部の前後方向と直角な幅方向の両側の端部において、それぞれの前記後側部分に位置するように設けられている請求項１又は請求項２に記載の車両用歩行者保護装置。   The vehicle according to claim 1 or 2, wherein the vertical wall portion is provided so as to be positioned at each of the rear side portions at both end portions in the width direction perpendicular to the front-rear direction of the plate portion. Pedestrian protection device. 車両の前部の下部部位に、車両の前後方向に延びるように配置されて、後側部分において車両に取り付けられると共に、前側部分に補強部が設けられたプレート部を有し、該プレート部の前端部において、車両の前面に衝突した歩行者の脚部に接触することにより、該脚部を保護し得るように構成した車両用歩行者保護装置を車両に取り付けるための構造であって、
請求項１乃至請求項３のうちの何れか１項に記載の車両用歩行者保護装置を用い、該車両用歩行者保護装置が取り付けられるべき車両の被取付部位に、上方に向かって突出し且つ車幅方向に広がる板状形態を有して設けられた剛性の板状突部に対して、該車両用歩行者保護装置の前記縦壁部の後面と前記横壁部の下面とが、該車両用歩行者保護装置の前記プレート部の前端部に対する前記歩行者の脚部の接触によって当接することにより、車両の後方と下方への該プレート部の変位が規制される位置に、該車両用歩行者保護装置を配置して、車両に取り付けることを特徴とする車両用歩行者保護装置の取付構造。
It is arranged at a lower part of the front part of the vehicle so as to extend in the front-rear direction of the vehicle, and is attached to the vehicle at the rear part, and has a plate part provided with a reinforcing part at the front part, A structure for attaching to a vehicle a pedestrian protection device for a vehicle configured to protect the leg by contacting the leg of a pedestrian that has collided with the front of the vehicle at the front end,
The vehicle pedestrian protection device according to any one of claims 1 to 3, wherein the vehicle pedestrian protection device is to be attached to a mounted portion of the vehicle and is projected upward. The rear surface of the vertical wall portion and the lower surface of the horizontal wall portion of the pedestrian protection device for a vehicle with respect to a rigid plate-shaped protrusion provided with a plate shape extending in the vehicle width direction are The vehicle pedestrian protection device is in a position where the displacement of the plate portion in the rearward and downward direction of the vehicle is restricted by contacting the pedestrian's leg with the front end of the plate portion. An installation structure for a pedestrian protection device for a vehicle, wherein the pedestrian protection device is arranged and attached to a vehicle.
JP2008265505A 2008-10-14 2008-10-14 Mounting structure for vehicle pedestrian protection device Expired - Fee Related JP5340690B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2012076536A (en) * 2010-09-30 2012-04-19 Fuji Heavy Ind Ltd Pedestrian protecting device for vehicle
CN103079900A (en) * 2010-10-08 2013-05-01 日产自动车株式会社 Bumper for vehicle
JP2013203322A (en) * 2012-03-29 2013-10-07 Fuji Heavy Ind Ltd Energy absorption bracket

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JP2002274298A (en) * 2001-03-15 2002-09-25 Fuji Heavy Ind Ltd Bumper structure for vehicle
JP2006273212A (en) * 2005-03-30 2006-10-12 Honda Motor Co Ltd Vehicle front structure
JP2007055543A (en) * 2005-08-26 2007-03-08 Kojima Press Co Ltd Pedestrian protecting device for vehicle
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012076536A (en) * 2010-09-30 2012-04-19 Fuji Heavy Ind Ltd Pedestrian protecting device for vehicle
CN103079900A (en) * 2010-10-08 2013-05-01 日产自动车株式会社 Bumper for vehicle
JP2013203322A (en) * 2012-03-29 2013-10-07 Fuji Heavy Ind Ltd Energy absorption bracket

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