JP5005518B2 - Automotive pillar trim - Google Patents

Automotive pillar trim Download PDF

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JP5005518B2
JP5005518B2 JP2007315217A JP2007315217A JP5005518B2 JP 5005518 B2 JP5005518 B2 JP 5005518B2 JP 2007315217 A JP2007315217 A JP 2007315217A JP 2007315217 A JP2007315217 A JP 2007315217A JP 5005518 B2 JP5005518 B2 JP 5005518B2
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pillar trim
pillar
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JP2009137414A (en
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長人 元村
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Daikyo Nishikawa Corp
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Description

本発明は、側突時の安全対策としてエアバッグを装着した自動車のピラートリムに関するものである。   The present invention relates to a pillar trim of an automobile equipped with an air bag as a safety measure at the time of a side collision.

特許文献１に記載された自動車のピラートリムでは、エアバッグの膨出を案内する２つのジャンプ台がピラートリム本体の上部に上方に向かって一体に突設され、該各ジャンプ台の端部には、車体のピラー部の挿入口に差し込まれて該挿入口周縁に車外側から係止する差込部が車外側に向かって一体に突設されている。これらジャンプ台はリブによって補強されている。また、上記両ジャンプ台の下方近傍のピラートリム本体には、ボス部が車外側に向かって一体に突設され、該ボス部には、車体のピラー部の位置決め孔に挿入されるクリップが装着されている。   In the automobile pillar trim described in Patent Document 1, two jump bases for guiding the inflation of the airbag are integrally projected upward on the top of the pillar trim body, and at the end of each jump base, An insertion portion that is inserted into the insertion port of the pillar portion of the vehicle body and engages with the periphery of the insertion port from the outside of the vehicle is integrally projected toward the outside of the vehicle. These jump stands are reinforced by ribs. The pillar trim main body near the lower side of the two jumping bases has a boss portion integrally projecting toward the vehicle outer side, and a clip inserted into the positioning hole of the pillar portion of the vehicle body is attached to the boss portion. ing.

一方、特許文献２に記載された自動車のピラートリムにも、特許文献１とは形状が異なるが、車体のピラー部の位置決め孔に挿入されるピン状のボス部が車外側に向かって一体に突設され、該ボス部の付け根が三角形の補強リブによって補強されている。
特許第３８６６７３３号公報 特許第３７５９４９６号公報 On the other hand, the pillar trim of the automobile described in Patent Document 2 also has a shape different from that of Patent Document 1, but the pin-shaped boss part inserted into the positioning hole of the pillar part of the vehicle body projects integrally toward the outside of the vehicle. And the base of the boss is reinforced by triangular reinforcing ribs.
Japanese Patent No. 3866733 Japanese Patent No. 3759596

ところで、上記特許文献１では、ジャンプ台がリブによって補強されているが、それでも、ジャンプ台にはエアバッグ膨出時に大きな膨張圧力が瞬時に作用するので、ジャンプ台のさらなる強化対策を講ずることが望ましい。また、差込部にも、エアバッグ膨出時に大きな膨張圧力が瞬時に作用するので、より高い強度が望まれる。さらに、エアバッグ膨出時にジャンプ台や差込部に作用した膨張圧力は、ボス部にも大きく作用するので、ボス部にもより高い強度が望まれる。   By the way, in the above-mentioned Patent Document 1, the jumping table is reinforced by ribs. However, since a large inflation pressure acts instantaneously on the jumping table when the airbag is inflated, further measures for strengthening the jumping table may be taken. desirable. Further, since a large inflation pressure acts instantaneously on the insertion portion when the airbag is inflated, higher strength is desired. Furthermore, since the inflation pressure that has acted on the jump base and the insertion portion when the airbag is inflated also acts on the boss portion, a higher strength is also desired on the boss portion.

また、上記特許文献２では、ボス部が補強リブによって補強されているが、それでも、組付時に、ボス部の先端が位置決め孔の縁に当接して曲げ力の作用により白化したり破損してしまうという問題がある。   Further, in Patent Document 2, the boss portion is reinforced by the reinforcing rib. However, at the time of assembly, the tip of the boss portion abuts against the edge of the positioning hole and is whitened or damaged by the action of bending force. There is a problem of end.

本発明は、かかる点に鑑みてなされたものであり、その目的とするところは、ジャンプ台、差込部及びボス部の強度を高めるとともに、組付時におけるボス部の白化現象や破損を防止することである。   The present invention has been made in view of the above points, and the object of the present invention is to increase the strength of the jumping base, the plug-in portion, and the boss portion, and to prevent the boss portion from being whitened or damaged during assembly. It is to be.

上記の目的を達成するため、本発明は、連結部によって互いに連結されたジャンプ台と連結部との交差部近傍と、ボス部とを補強リブによって一体に連結したことを特徴とする。   In order to achieve the above object, the present invention is characterized in that the vicinity of the intersection between the jump base and the connecting portion connected to each other by the connecting portion and the boss portion are integrally connected by the reinforcing rib.

具体的には、本発明は、エアバッグが、ルーフサイドの車内側で車体前後方向に延びるように配置されかつトップシーリングにより車内側から覆われて格納された自動車において、上記エアバッグの下方に位置し、かつ上部に上記トップシーリングの下端縁が接続され、車体のピラー部の車内側の面を覆うピラートリム本体を備えた樹脂製のピラートリムを対象とし、次のような解決手段を講じた。   Specifically, the present invention relates to an automobile in which an airbag is disposed so as to extend in the longitudinal direction of the vehicle body on the inside of the vehicle on the roof side and is covered and stored from the inside of the vehicle by a top ceiling. The following solution was taken for a resin-made pillar trim having a pillar trim body that is positioned and has a lower end edge of the top ceiling connected to the upper portion and covering the inner surface of the pillar portion of the vehicle body.

すなわち、請求項１に記載の発明は、上記ピラートリム本体の上部の車外側には、上記エアバッグの車内側への膨出を案内する上壁部と、該上壁部の車体前後方向両端に設けられた側壁部とで断面略コ字状に形成された少なくとも３つのジャンプ台が、車体前後方向に互いに離間するように上方に向かって一体に突設され、かつ隣接するジャンプ台の各々の対向側壁部下端は、ピラートリム本体に車外側に向けて突設された連結部によって互いに一体に連結され、上記各連結部の車外側には、上記車体のピラー部の挿入口に差し込まれて該挿入口周縁に車外側から係止する差込部が車外側に向かって一体に突設され、隣接する連結部間でかつ該両連結部より下方のピラートリム本体には、上記ピラー部の位置決め孔に直接的又は間接的に挿入されるボス部が車外側に向かって一体に突設され、上記両連結部に挟まれたジャンプ台の側壁部下端と連結部との交差部近傍は、板面が車体前後方向と交差し、ピラートリム本体の車外側の面に一体に形成された板状の補強リブによって上記ボス部に一体に連結されていることを特徴とする。 In other words, the invention according to claim 1 is provided on the outer side of the upper portion of the pillar trim main body, on the upper wall portion for guiding the airbag to the inner side of the vehicle, and on both ends of the upper wall portion in the longitudinal direction of the vehicle body. At least three jump tables formed in a substantially U-shaped cross-section with the provided side wall portions are integrally projected upward so as to be separated from each other in the longitudinal direction of the vehicle body, and each of the adjacent jump tables The lower ends of the opposing side wall portions are integrally connected to each other by a connecting portion projecting from the pillar trim body toward the vehicle outer side, and the vehicle outer side of each connecting portion is inserted into the insertion port of the pillar portion of the vehicle body. An insertion portion that locks from the vehicle outer side to the periphery of the insertion port is integrally projected toward the vehicle outer side, and the pillar trim body between the adjacent connection portions and below the both connection portions has a positioning hole for the pillar portion. Directly or indirectly into Boss is integrally projected toward the vehicle exterior that, near intersections between the two joining portions sandwiched by jumping of the side wall lower end and the connecting portion crosses the plate surface and the longitudinal direction of the vehicle body, the pillar trim It is characterized by being integrally connected to the boss part by a plate-like reinforcing rib integrally formed on the vehicle outer surface of the main body .

請求項２に記載の発明は、請求項１に記載の発明において、上記両連結部に挟まれたジャンプ台の両側壁部下端は、車体への組付け状態で車体前方又は後方に向かって下方に傾斜する線上に位置し、上記両連結部に挟まれたジャンプ台の両側壁部のうちの下側に位置する側壁部下端と連結部との交差部近傍は、上記補強リブによって上記ボス部に一体に連結されていることを特徴とする。 According to a second aspect of the present invention, in the first aspect of the present invention, the lower ends of both side wall portions of the jump stand sandwiched between the two connecting portions are downwardly directed toward the front or rear of the vehicle body when assembled to the vehicle body. The boss portion is located near the intersection between the lower end of the side wall portion and the connecting portion located on the lower side of the both side wall portions of the jump stand sandwiched between the two connecting portions. Are integrally connected to each other .

請求項１に係る発明によれば、ジャンプ台は補強リブを介してボス部により下方から支持されているので、その支持剛性が高まっている。これにより、エアバッグ膨出時にジャンプ台に大きな膨張圧力が作用しても、その圧力が補強リブを介してボス部に分散するので、膨張圧力によるジャンプ台のダメージが軽減される。   According to the first aspect of the present invention, since the jump stand is supported from below by the boss portion through the reinforcing rib, the support rigidity is increased. Thereby, even if a large inflation pressure acts on the jump base when the airbag is inflated, the pressure is dispersed to the boss portion via the reinforcing rib, so that damage to the jump base due to the inflation pressure is reduced.

また、差込部は連結部と一体に設けられており、該連結部は補強リブを介してボス部により下方から支持されているので、差込部の支持剛性も高まっている。これにより、エアバッグ膨出時に差込部に大きな膨張圧力が作用しても、その膨張圧力が連結部及び補強リブを介してボス部に分散するので、膨張圧力による差込部のダメージが軽減される。   Moreover, since the insertion part is provided integrally with the connection part and the connection part is supported from below by the boss part via the reinforcing rib, the support rigidity of the insertion part is also increased. As a result, even if a large inflation pressure acts on the insertion portion when the airbag is inflated, the inflation pressure is dispersed to the boss portion via the connecting portion and the reinforcing rib, so that damage to the insertion portion due to the inflation pressure is reduced. Is done.

また、組付時にボス部の先端が位置決め孔の縁に当接して曲げ力を受けても、その曲げ力が、補強リブを介してジャンプ台及び連結部に分散するので、ボス部の破損や白化現象が防止される。   Even when the tip of the boss part abuts against the edge of the positioning hole during assembly and receives bending force, the bending force is distributed to the jumping base and the connecting part via the reinforcing ribs. Whitening phenomenon is prevented.

また、補強リブの長手方向に沿う端面がピラートリム本体によって車内側から一体に支持されているので、補強リブの支持剛性が高まっている。これにより、エアバッグ膨出時や組付時にジャンプ台、差込部、及びボス部から補強リブに作用する力がピラートリム本体にも分散するので、補強リブ自体の変形や破損が防止される。Moreover, since the end surface along the longitudinal direction of the reinforcing rib is supported integrally from the vehicle inner side by the pillar trim body, the supporting rigidity of the reinforcing rib is increased. As a result, the force acting on the reinforcing rib from the jumping base, the plug-in portion, and the boss portion when the airbag is inflated or assembled is also dispersed in the pillar trim body, so that deformation or breakage of the reinforcing rib itself is prevented.

請求項２に係る発明によれば、補強リブが、上記両側壁部のうち、ボス部に近い方の側壁部とボス部とを連結しているので、ボス部から遠い方の側壁部とボス部とを補強リブで連結する場合に比べ、補強リブの上下方向の長さが短くなる。したがって、補強リブ自体の剛性が高くなる。また、成形型の補強リブ形成用の凹部も短くなるので、型構造が簡素になるとともに、脱型も容易となって成形不良が少なくなる。   According to the invention of claim 2, since the reinforcing rib connects the side wall portion closer to the boss portion and the boss portion of the both side wall portions, the side wall portion far from the boss portion and the boss portion. The length of the reinforcing rib in the vertical direction is shorter than when the portions are connected with the reinforcing rib. Therefore, the rigidity of the reinforcing rib itself is increased. In addition, since the concave portion for forming the reinforcing rib of the mold is shortened, the mold structure is simplified and the mold can be easily removed to reduce molding defects.

以下、本発明の実施形態について図面に基づいて説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、自動車の車室内部における右側の側面を示した図であり、図示しないフロントシート及びリヤシートに着座したフロント側乗員Ｐ１及びリヤ側乗員Ｐ２を仮想線にて示している。車体側面には、上下方向に延びるフロントピラー部（Ａピラー部）１、センタピラー部（Ｂピラー部）３及びリヤピラー部（Ｃピラー部）５が車体前方から順に配設されている。上記Ａピラー部１とＢピラー部３との間にはフロントドア７が配設される一方、Ｂピラー部３とＣピラー部５との間にはリヤドア９が配設されている。これら車体の各ピラー部１，３，５の車内側の面は、樹脂製のＡピラートリム１１、Ｂピラートリム１３及びＣピラートリム１５でそれぞれ覆われている。そのうち、上記Ｂピラートリム１３は、上側のアッパーピラートリム１３ａと下側のロアピラートリム１３ｂとからなり、アッパーピラートリム１３ａの上部には、フロントシート用シートベルトのシートベルトショルダーアンカー１７が配置され、このシートベルトショルダーアンカー１７は、フロント側乗員Ｐ１の体格に応じて高さ位置を上下に調整できるように構成されている。   FIG. 1 is a diagram showing a right side surface in an interior of a vehicle, and a front occupant P1 and a rear occupant P2 seated on a front seat and a rear seat (not shown) are indicated by phantom lines. A front pillar portion (A pillar portion) 1, a center pillar portion (B pillar portion) 3, and a rear pillar portion (C pillar portion) 5 that extend in the vertical direction are arranged in order from the front of the vehicle body. A front door 7 is disposed between the A pillar portion 1 and the B pillar portion 3, and a rear door 9 is disposed between the B pillar portion 3 and the C pillar portion 5. The inner surface of each pillar portion 1, 3, 5 of the vehicle body is covered with a resin A pillar trim 11, a B pillar trim 13, and a C pillar trim 15. Among them, the B pillar trim 13 is composed of an upper upper pillar trim 13a and a lower lower pillar trim 13b, and a seat belt shoulder anchor 17 of a seat belt for a front seat is disposed above the upper pillar trim 13a. The shoulder anchor 17 is configured so that the height position can be adjusted up and down according to the physique of the front occupant P1.

図２はＢピラー部３に対応するアッパーピラートリム１３ａの上部を示し、同図において、１９はＢピラー部３を構成するアウターピラーパネル、２１は該アウターピラーパネル１９の車内側に接合されるインナーピラーパネルである。このインナーピラーパネル２１上端（ルーフサイド）の車内側には、自動車が側突したときに乗員の頭部を保護するためのエアバッグ装置のエアバッグ２３が上記Ａピラー部１からＢピラー部３を越え、Ｃピラー部５付近まで車体前後方向に延びるように配置されている。このエアバッグ２３は、インナーピラーパネル２１の車内側を覆うトップシーリング２５との間に折り畳まれて格納されている。   2 shows the upper part of the upper pillar trim 13a corresponding to the B pillar portion 3. In FIG. 2, 19 is an outer pillar panel constituting the B pillar portion 3, and 21 is an inner joined to the inner side of the outer pillar panel 19. It is a pillar panel. On the inner side of the upper end (roof side) of the inner pillar panel 21, an airbag 23 of an airbag device for protecting the head of the occupant when the vehicle collides is provided from the A pillar portion 1 to the B pillar portion 3. It is arranged so as to extend in the longitudinal direction of the vehicle body up to the vicinity of the C pillar portion 5. The airbag 23 is folded and stored between a top ceiling 25 that covers the inner side of the inner pillar panel 21.

上記エアバッグ２３の下方には、上記Ｂピラートリム１３のアッパーピラートリム１３ａが位置し、このアッパーピラートリム１３ａは、上記Ｂピラー部３の車内側の面を覆うピラートリム本体２７を備えている。このピラートリム本体２７は、図３及び図４に示すように、車内側の正面部２７ａと前側及び後側の側面部２７ｂとで断面略コ字状に形成されている。上記正面部２７ａの中央には、上記シートベルトショルダーアンカー１７の高さ調整に対応する長孔部２９が設けられている。   An upper pillar trim 13a of the B pillar trim 13 is located below the airbag 23, and the upper pillar trim 13a includes a pillar trim body 27 that covers the inner surface of the B pillar portion 3. As shown in FIGS. 3 and 4, the pillar trim main body 27 is formed in a substantially U-shaped cross section by a front side portion 27 a on the vehicle inner side and a side surface portion 27 b on the front side and the rear side. In the center of the front portion 27a, a long hole portion 29 corresponding to the height adjustment of the seat belt shoulder anchor 17 is provided.

上記ピラートリム本体２７の正面部２７ａ上端縁は、車体前方（図４左側）に向かって下方に（前下がりに）傾斜している。該正面部２７ａの車外側（裏側）の面の上部には、その下部よりも段差部４０を介して若干車外側に位置するジャンプ台支持壁４１が形成されている。上記ピラートリム本体２７の上部の車外側、すなわちジャンプ台支持壁４１には、３つのジャンプ台３１，３３，３５が、車体前方から順に、上端縁に沿って車体前後方向に互いに離間するように、かつエアバッグ２３を下方から支持するように上方に向かって一体に突設されている。これらのジャンプ台３１，３３，３５は、それぞれ車体前後方向に互いに離間する１対の側壁部３１ａ，３３ａ，３５ａと、両側壁部３１ａ，３３ａ，３５ａの上端の車外側を一体に連結する上壁部３１ｂ，３３ｂ，３５ｂとで断面略コ字状に形成されており、さらに、両側壁部３１ａ，３３ａ，３５ａの車内側の縁部及び上記上壁部３１ｂ，３３ｂ，３５ｂの車内側の縁部を一体に連結する正面壁部３１ｃ，３３ｃ，３５ｃを備えている。これら正面壁部３１ｃ，３３ｃ，３５ｃは、ジャンプ台支持壁４１の一部を構成している。また、各正面壁部３１ｃ，３３ｃ，３５ｃの車内側には、車体前後方向に間隔をあけて上下方向に延びる突条部４９が車内側に向かって２本ずつ突設されている。上記各ジャンプ台３１，３３，３５の上壁部３１ｂ，３３ｂ，３５ｂの上部には、上記エアバッグ２３の車内側への膨出を案内する案内面３１ｄ，３３ｄ，３５ｄが車内側に面して立ち上がっており、該案内面３１ｄ，３３ｄ，３５ｄは車外側に向かって上方に傾斜している。中央のジャンプ台３３の側壁部３３ａ下端は、上記正面部２７ａの傾斜する上端縁に沿うように車体への組付け状態で車体前方に向かって下方に傾斜する線上に位置している。   The upper end edge of the front portion 27a of the pillar trim body 27 is inclined downward (downwardly forward) toward the front of the vehicle body (left side in FIG. 4). A jump stand support wall 41 is formed on the vehicle outer side (rear side) surface of the front portion 27a through the step portion 40 rather than the lower portion thereof. On the outer side of the upper part of the pillar trim body 27, that is, on the jump stand support wall 41, three jump stands 31, 33, 35 are separated from each other in the vehicle longitudinal direction along the upper edge in order from the front of the vehicle body. And it protrudes integrally toward upper direction so that the airbag 23 may be supported from the downward direction. These jump bases 31, 33, 35 are integrally connected to a pair of side wall portions 31a, 33a, 35a that are spaced apart from each other in the longitudinal direction of the vehicle body and the vehicle exterior at the upper ends of both side wall portions 31a, 33a, 35a. The wall portions 31b, 33b, 35b are formed in a substantially U-shaped cross section, and further, the inner edge portions of the side wall portions 31a, 33a, 35a and the inner side portions of the upper wall portions 31b, 33b, 35b are formed. Front wall portions 31c, 33c, and 35c that integrally connect the edge portions are provided. These front wall portions 31 c, 33 c, and 35 c constitute a part of the jump stand support wall 41. In addition, on the vehicle inner side of each front wall portion 31c, 33c, 35c, two protrusions 49 extending in the vertical direction with a space in the front-rear direction of the vehicle body are provided to protrude toward the vehicle inner side. Guide surfaces 31d, 33d, and 35d for guiding the airbag 23 to the inside of the vehicle face the inside of the vehicle on the upper walls 31b, 33b, and 35b of the jump bases 31, 33, and 35, respectively. The guide surfaces 31d, 33d, and 35d are inclined upward toward the vehicle outer side. The lower end of the side wall 33a of the central jump stand 33 is located on a line that is inclined downward toward the front of the vehicle body when assembled to the vehicle body along the inclined upper edge of the front portion 27a.

隣接するジャンプ台３１，３３の対向側壁部３１ａ，３３ａの下端は上記ピラートリム本体２７に車外側に向けて突設された板状の連結部３７によって互いに一体に連結されており、同様に、ジャンプ台３３，３５の対向側壁部３３ａ，３５ａの下端も上記ピラートリム本体２７に突設された板状の連結部３９によって互いに一体に連結されている。 The lower ends of the opposite side wall portions 31a and 33a of the adjacent jump bases 31 and 33 are integrally connected to each other by a plate-like connecting portion 37 projecting toward the vehicle outer side to the pillar trim body 27. The lower ends of the opposite side wall portions 33a, 35a of the bases 33, 35 are also integrally connected to each other by a plate-like connecting portion 39 protruding from the pillar trim body 27.

ここで、上記のように中央のジャンプ台３３の前側の側壁部３３ａの下端は、該ジャンプ台３３の後側の側壁部３３ａの下端より下方に位置しているため、上記前側の連結部３７は後側の連結部３９よりも下方に位置付けられている。   Here, as described above, the lower end of the front side wall 33a of the central jump base 33 is located below the lower end of the rear side wall 33a of the jump base 33. Is positioned below the rear connecting portion 39.

上記連結部３７，３９の車外側の端部には、板状の差込部６３が上方に向かって一体に突設されている。また、上記各差込部６３の裏面（車外側）及び上記各連結部３７，３９の下側の面には、これらに亘って連続する３条の突条リブ６３ａが形成されている。上記インナーピラーパネル２１（Ｂピラー部３）には、挿入口６１が開口されており、この挿入口６１に上記差込部６３が差し込まれる。   A plate-like insertion portion 63 is integrally provided projecting upward at the end of the connecting portions 37 and 39 on the vehicle outer side. In addition, on the back surface (vehicle outer side) of each insertion portion 63 and the lower surface of each of the connection portions 37 and 39, three protruding rib ribs 63a are formed so as to extend over these. An insertion port 61 is opened in the inner pillar panel 21 (B pillar portion 3), and the insertion portion 63 is inserted into the insertion port 61.

また、中央のジャンプ台３３を介して隣接する２つの連結部３７，３９間でかつ該両連結部３７，３９より下方の上記ピラートリム本体２７の裏面には、車外側に向かってボス部４３が一体に突設されている。このボス部４３は、ピラートリム本体２７の正面部２７ａ裏面から略垂直に突出するボス部本体４３ａを備え、該ボス部本体４３ａは、車体前後方向に互いに離間して対向する２つの側壁４３ｂと、該両側壁４３ｂの上端を連結する上壁４３ｃと、該両側壁４３ｂ及び該上壁４３ｃの先端（外端）に一体に形成された頂面壁４３ｄと、該頂面壁４３ｄと上記正面部２７ａ裏面との間で該両側壁４３ｂと該上壁４３ｃとを連結するように該頂面壁４３ｄと略平行に離間して設けられた２つのリブ４３ｅとから構成されている。これにより、ボス部４３は、下方に開口部４３ｇを有する中空状をなしている。そして、上記ボス部本体４３ａの頂面壁４３ｄの車外側の面には、車外側に向かって突出する位置決めピン部４３ｆが一体に形成されている。上記インナーピラーパネル２１（Ｂピラー部３）の挿入口６１の下方には、位置決め孔６５が形成されており、この位置決め孔６５に上記ボス部４３の位置決めピン部４３ｆが挿入される。   A boss 43 is formed on the back surface of the pillar trim body 27 between the two connecting portions 37 and 39 adjacent to each other via the central jump stand 33 and below the connecting portions 37 and 39 toward the vehicle exterior. Projected as a single unit. The boss portion 43 includes a boss portion main body 43a that protrudes substantially perpendicularly from the rear surface of the front portion 27a of the pillar trim main body 27, and the boss portion main body 43a includes two side walls 43b that are spaced apart from each other in the longitudinal direction of the vehicle body and face each other. An upper wall 43c that connects the upper ends of the side walls 43b, a top wall 43d that is formed integrally with the side walls 43b and the tip (outer end) of the upper wall 43c, the top wall 43d, and the back surface of the front portion 27a The two side walls 43b and the upper wall 43c are connected to each other so as to be connected to the top wall 43d and separated from each other by two ribs 43e. Thereby, the boss | hub part 43 has comprised the hollow shape which has the opening part 43g below. And the positioning pin part 43f which protrudes toward the vehicle outer side is integrally formed in the vehicle outer surface of the top surface wall 43d of the boss portion main body 43a. A positioning hole 65 is formed below the insertion opening 61 of the inner pillar panel 21 (B pillar portion 3), and the positioning pin portion 43f of the boss portion 43 is inserted into the positioning hole 65.

また、上記ボス部４３の上壁４３ｃは、上記両連結部３７，３９に挟まれたジャンプ台３３の両側壁部３３ａのうちの車体前側の側壁部３３ａ下端と連結部３７との交差部近傍と、板面が車体前後方向と交差して板面を車体前後方向に向けた板状の補強リブ４５によって一体に連結されている。この補強リブ４５は、その長手方向の端面がピラートリム本体２７の車外側の面（裏面）に一体に形成されている。   Further, the upper wall 43c of the boss portion 43 is in the vicinity of the intersection of the connecting portion 37 and the lower end of the side wall portion 33a on the vehicle body front side of the both side walls 33a of the jump stand 33 sandwiched between the connecting portions 37 and 39. The plate surfaces intersect with the vehicle body front-rear direction and are integrally connected by plate-like reinforcing ribs 45 with the plate surface facing the vehicle body front-rear direction. The reinforcing rib 45 has an end face in the longitudinal direction formed integrally with a surface (back surface) on the vehicle exterior side of the pillar trim main body 27.

上記ピラートリム本体２７の正面部２７ａの車外側（図３に示す側）の面には、上下方向に延びる前側縦リブ５１ａ及び後側縦リブ５１ｂが車体前後方向両端部２７ｂ、２７ｃ側に位置するようにそれぞれ一体に突設されている。前側縦リブ５１ａの前側には複数の横リブ５３ａが、また後側縦リブ５１ｂの後側には複数の横リブ５３ｂがそれぞれ一体に形成されている。また、該各縦リブ５１ａ、５１ｂと上記ボス部４３とは、車体前後方向に延びるリブ５５で連結されている。また、上記ボス部４３と上記段差部４０とは、上記補強リブ４５と略平行に設けられたリブ５７で一体に連結されている。   A front vertical rib 51a and a rear vertical rib 51b extending in the vertical direction are positioned on the vehicle body front-rear direction end portions 27b and 27c side on the vehicle exterior side (the side shown in FIG. 3) of the front portion 27a of the pillar trim body 27. As shown in FIG. A plurality of horizontal ribs 53a are integrally formed on the front side of the front vertical rib 51a, and a plurality of horizontal ribs 53b are integrally formed on the rear side of the rear vertical rib 51b. The vertical ribs 51a and 51b and the boss portion 43 are connected by ribs 55 extending in the longitudinal direction of the vehicle body. Further, the boss portion 43 and the stepped portion 40 are integrally connected by a rib 57 provided substantially parallel to the reinforcing rib 45.

上記のように、本実施形態においては、ジャンプ台３３が補強リブ４５を介してボス部４３により下方から支持されているので、その支持剛性が高まっている。また、車体前側の差込部６３は連結部３７と一体に設けられており、該連結部３７は補強リブを介してボス部４３により下方から支持されているので、差込部６３の支持剛性も高まっている。さらに、補強リブ４５がピラートリム本体２７によって車内側から支持されているので、補強リブ４５の支持剛性も高まっている。   As described above, in the present embodiment, since the jump base 33 is supported from below by the boss portion 43 via the reinforcing rib 45, the support rigidity is increased. Further, the insertion part 63 on the front side of the vehicle body is provided integrally with the connecting part 37, and the connecting part 37 is supported from below by the boss part 43 via the reinforcing rib. Is also growing. Further, since the reinforcing rib 45 is supported by the pillar trim body 27 from the vehicle inner side, the supporting rigidity of the reinforcing rib 45 is also increased.

また、上記トップシーリング２５の下端縁は、ピラートリム本体２７上端に車外側から当接して接続されている。エアバッグ２３が膨張して折り畳まれた状態から下方へ展開し、ジャンプ台３１，３３，３５の案内面３１ｄ，３３ｄ，３５ｄに案内されると、該エアバッグ２３の膨張圧力により、トップシーリング２５の下端縁が車内側に押し出され、該エアバッグ２３が車内側へ膨出する。   Further, the lower end edge of the top ceiling 25 is connected to the upper end of the pillar trim main body 27 in contact with the outside of the vehicle. When the airbag 23 expands and is folded downward from the folded state and is guided by the guide surfaces 31d, 33d, and 35d of the jump bases 31, 33, and 35, the top sealing 25 is caused by the inflation pressure of the airbag 23. The lower end edge of the airbag 23 is pushed to the inside of the vehicle, and the airbag 23 is inflated to the inside of the vehicle.

上記のように構成されたアッパーピラートリム１３ａをＢピラー部３に取り付けるには、まず、インナーピラーパネル２１の挿入口６１にアッパーピラートリム１３ａの差込部６３が対応するようにアッパーピラートリム１３ａを傾けながら該差込部６３を該挿入口６１に挿入する。そして、上記ボス部４３の位置決めピン部４３ｆをインナーピラーパネル２１の位置決め孔６５に対応させることによりアッパーピラートリム１３ａの位置決めを行った状態で、アッパーピラートリム１３ａをインナーピラーパネル２１に押しつける。すると、位置決めピン部４３ｆがその先端を位置決め孔６５の縁に当接させながら位置決め孔６５に嵌り込むとともに、差込部６３が挿入口６１周縁に車外側から係止する。このとき、位置決めピン部４３ｆ先端には、位置決め孔６５周縁への当接による曲げ力が作用するが、この曲げ力は、補強リブ４５を介してジャンプ台３３及び車体前側の連結部３７に分散するので、位置決めピン部４３ｆの破損や白化現象が防止される。また、補強リブ４５がピラートリム本体２７と一体に形成されており、ボス部４３から補強リブ４５に作用する力がピラートリム本体２７にも分散するので、補強リブ４５の変形や破損が防止される。   In order to attach the upper pillar trim 13 a configured as described above to the B pillar portion 3, first, while tilting the upper pillar trim 13 a so that the insertion portion 63 of the upper pillar trim 13 a corresponds to the insertion port 61 of the inner pillar panel 21. The insertion part 63 is inserted into the insertion port 61. Then, the upper pillar trim 13a is pressed against the inner pillar panel 21 in a state where the upper pillar trim 13a is positioned by making the positioning pin portion 43f of the boss portion 43 correspond to the positioning hole 65 of the inner pillar panel 21. Then, the positioning pin portion 43f is fitted into the positioning hole 65 with its tip abutting against the edge of the positioning hole 65, and the insertion portion 63 is locked to the periphery of the insertion port 61 from the outside of the vehicle. At this time, a bending force due to contact with the periphery of the positioning hole 65 is applied to the tip of the positioning pin portion 43f. This bending force is distributed to the jump base 33 and the connecting portion 37 on the front side of the vehicle body via the reinforcing rib 45. Therefore, damage to the positioning pin portion 43f and whitening phenomenon are prevented. Further, since the reinforcing rib 45 is formed integrally with the pillar trim main body 27, and the force acting on the reinforcing rib 45 from the boss portion 43 is also distributed to the pillar trim main body 27, deformation and breakage of the reinforcing rib 45 are prevented.

また、側突時には、エアバッグ２３が膨張して車室内側に膨出し、その膨張圧力がジャンプ台３３を車外側斜め下方に押圧するように作用するが、その膨張圧力は補強リブ４５を介してボス部４３に分散するので、膨張圧力によるジャンプ台３３の破損が防止される。また、このとき、車体前側の差込部６３にも同様の膨張圧力が作用するが、その圧力は連結部３７及び補強リブ４５を介してボス部４３に分散するので、膨張圧力による差込部６３の破損が防止軽減される。また、補強リブ４５がピラートリム本体２７と一体に形成されており、ジャンプ台３３や車体前側の差込部６３から補強リブ４５に作用する圧力はピラートリム本体２７にも分散するので、補強リブ４５自体の変形や破損が防止される。   Further, at the time of a side collision, the airbag 23 is inflated and inflated to the vehicle interior side, and the inflation pressure acts so as to press the jump base 33 obliquely downward on the outside of the vehicle. Accordingly, the jump table 33 is prevented from being damaged by the expansion pressure. At this time, the same expansion pressure also acts on the insertion portion 63 on the front side of the vehicle body, but since the pressure is distributed to the boss portion 43 via the connecting portion 37 and the reinforcing rib 45, the insertion portion due to the expansion pressure is used. Damage to 63 is prevented and reduced. Further, the reinforcing rib 45 is formed integrally with the pillar trim main body 27, and the pressure acting on the reinforcing rib 45 from the jump base 33 or the insertion portion 63 on the front side of the vehicle body is also distributed to the pillar trim main body 27. Therefore, the reinforcing rib 45 itself Is prevented from being deformed or damaged.

また、補強リブ４５が、ジャンプ台３３の両側壁部３３ａのうちの下端部が下側に位置する車体前側の側壁部３３ａと連結部３７との交差部近傍と、ボス部４３とを連結しており、車体前側の側壁部３３ａ下端は車体後側の側壁部３３ａ下端よりもボス部４３に近いので、補強リブ４５の上下方向の長さが、車体後側の側壁部３３ａと連結部３９との交差部近傍と、ボス部４３とを連結する補強リブ４５を設ける場合に比べて短くなる。したがって、補強リブ４５自体の剛性が高くなるとともに、成形型の補強リブ４５成形用の凹部が短くなるので、型構造が簡素になるとともに、脱型も容易となって成形不良が少なくなる。   Further, the reinforcing rib 45 connects the boss portion 43 to the vicinity of the intersection of the side wall portion 33a on the vehicle body front side where the lower end portion of the both side wall portions 33a of the jump base 33 is positioned on the lower side and the connecting portion 37, and the boss portion 43. Since the lower end of the side wall portion 33a on the front side of the vehicle body is closer to the boss portion 43 than the lower end of the side wall portion 33a on the rear side of the vehicle body, the vertical length of the reinforcing rib 45 is equal to the side wall portion 33a on the rear side of the vehicle body and the connecting portion 39. Compared with the case where the reinforcing rib 45 that connects the vicinity of the intersection with the boss portion 43 is provided. Accordingly, the rigidity of the reinforcing rib 45 itself is increased, and the concave portion for forming the reinforcing rib 45 of the molding die is shortened, so that the mold structure is simplified and the mold removal is facilitated to reduce molding defects.

また、補強リブ４５の下端は、ボス部４３の上壁４３ｃに連結され、該上壁４３ｃの車体前後方向の両端はボス部４３の両側壁４３ｂに連結されているため、補強リブ４５に上方から下方への押圧力が作用した際、ボス部４３が破損することがない。   Further, the lower end of the reinforcing rib 45 is connected to the upper wall 43c of the boss portion 43, and both ends of the upper wall 43c in the longitudinal direction of the vehicle body are connected to both side walls 43b of the boss portion 43. When the downward pressing force is applied, the boss portion 43 is not damaged.

また、ボス部４３は、下方に開口部４３ｇを有する中空状であるため、ピラートリム本体２７におけるボス部４３の連結部表面に成形後の樹脂収縮によるヒケが生じることがなく、ピラートリム本体２７の見栄えを損なうことがない。   Further, since the boss portion 43 has a hollow shape having an opening portion 43g below, the surface of the connecting portion of the boss portion 43 in the pillar trim main body 27 is free from sink marks due to resin shrinkage after molding, and the appearance of the pillar trim main body 27 is improved. Will not be damaged.

なお、上記実施形態では、Ｂピラートリム１３に本発明を適用した例を示したが、本発明は、Ａピラートリム１１やＣピラートリム１５にも適用できる。また、車体後方に向かってピラートリム本体２７の上部側縁が下方に傾斜し、補強リブ４５に連結されるジャン
プ台の両側壁部下端が、車体後方に向かって下方に傾斜する線上に位置している場合でも、本発明を適用できる。 In the above embodiment, an example in which the present invention is applied to the B pillar trim 13 has been described. However, the present invention can also be applied to the A pillar trim 11 and the C pillar trim 15. Further, the upper side edge of the pillar trim main body 27 is inclined downward toward the rear of the vehicle body, and the lower ends of both side walls of the jump base connected to the reinforcing rib 45 are positioned on a line inclined downward toward the rear of the vehicle body. The present invention is applicable even when

また、上記実施形態では、ピラートリム本体２７にジャンプ台３１，３３，３５が３つ設けられているが、４つ以上設けてもよい。   In the above embodiment, the pillar trim main body 27 is provided with three jump bases 31, 33, 35, but may be provided with four or more.

また、上記実施形態では、ピラートリム本体２７に一体に設けられたボス部４３が位置決め孔６５に直接的に挿入されていたが、例えば、ボス部４３にクリップが装着され、そのクリップが位置決め孔６５に挿入されるようにする等、間接的に挿入されるようにしてもよい。   In the above embodiment, the boss portion 43 provided integrally with the pillar trim main body 27 is directly inserted into the positioning hole 65. However, for example, a clip is attached to the boss portion 43, and the clip is positioned in the positioning hole 65. You may make it insert indirectly, such as making it insert in.

また、上記実施形態では、補強リブ４５は、その長手方向に沿う端面をピラートリム本体２７の裏面に一体に形成したが、該端面とピラートリム本体の裏面との間に若干の隙間を有するように形成してもよい。   Further, in the above embodiment, the reinforcing rib 45 is formed so that the end surface along the longitudinal direction is integrally formed on the back surface of the pillar trim main body 27, but has a slight gap between the end surface and the back surface of the pillar trim main body. May be.

本発明は、側突時の安全対策としてエアバッグを装着した自動車のピラートリムとして有用である。   INDUSTRIAL APPLICABILITY The present invention is useful as a pillar trim of an automobile equipped with an air bag as a safety measure at the time of a side collision.

本発明の実施形態に係るピラートリムを備えた自動車の車室内部における右側の側面図である。It is a side view of the right side in the vehicle interior part of the motor vehicle provided with the pillar trim which concerns on embodiment of this invention. アッパーピラートリムが車体側に取り付けられた状態を示す図３のＡ−Ａ線相当断面図である。FIG. 4 is a cross-sectional view corresponding to the line AA in FIG. 3 showing a state in which an upper pillar trim is attached to the vehicle body side. アッパーピラートリムの上部を車外側から見た斜視図である。It is the perspective view which looked at the upper part of the upper pillar trim from the vehicle outside. アッパーピラートリムの上部を車内側斜め上から見た斜視図である。It is the perspective view which looked at the upper part of the upper pillar trim from the vehicle inside diagonally upward.

３ Ｂピラー部
１１ Ａピラートリム
１３ Ｂピラートリム
１３ａ アッパーピラートリム
１５ Ｃピラートリム
２３ エアバッグ
２５ トップシーリング
２７ ピラートリム本体
３１，３３，３５ ジャンプ台
３１ａ，３３ａ，３５ａ 側壁部
３１ｂ，３３ｂ，３５ｂ 上壁部
３７，３９ 連結部
４３ ボス部
４５ 補強リブ
６１ 挿入口
６３ 差込部
６５ 位置決め孔 3 B pillar 11 A pillar trim 13 B pillar trim 13a Upper pillar trim 15 C pillar trim 23 Air bag 25 Top sealing 27 Pillar trim body
31, 33 , 35 jump stand
31a, 33a , 35a side wall
31b, 33b , 35b upper wall part 37 , 39 connection part 43 boss part 45 reinforcing rib 61 insertion port 63 insertion part
65 positioning holes

Claims (2)

エアバッグ(23)が、ルーフサイドの車内側で車体前後方向に延びるように配置されかつトップシーリング(25)により車内側から覆われて格納された自動車において、上記エアバッグ(23)の下方に位置し、かつ上部に上記トップシーリング(25)の下端縁が接続され、車体のピラー部(3)の車内側の面を覆うピラートリム本体(27)を備えた樹脂製のピラートリムであって、
上記ピラートリム本体(27)の上部の車外側には、上記エアバッグ(23)の車内側への膨出を案内する上壁部(31b,33b,35b)と、該上壁部(31b,33b,35b)の車体前後方向両端に設けられた側壁部(31a,33a,35a)とで断面略コ字状に形成された少なくとも３つのジャンプ台(31,33,35)が、車体前後方向に互いに離間するように上方に向かって一体に突設され、かつ隣接するジャンプ台(31,33,35)の各々の対向側壁部(31a,33a,35a)下端は、ピラートリム本体(27)に車外側に向けて突設された連結部(37,39)によって互いに一体に連結され、
上記各連結部(37,39)の車外側には、上記車体のピラー部(3)の挿入口(61)に差し込まれて該挿入口(61)周縁に車外側から係止する差込部(63)が車外側に向かって一体に突設され、
隣接する連結部(37,39)間でかつ該両連結部(37,39)より下方のピラートリム本体(27)には、上記ピラー部(3)の位置決め孔(65)に直接的又は間接的に挿入されるボス部(43)が車外側に向かって一体に突設され、
上記両連結部(37,39)に挟まれたジャンプ台(33)の側壁部(33a)下端と連結部(37)との交差部近傍は、板面が車体前後方向と交差し、ピラートリム本体(27)の車外側の面に一体に形成された板状の補強リブ(45)によって上記ボス部(43)に一体に連結されていることを特徴とする自動車のピラートリム。 In an automobile in which the airbag (23) is disposed so as to extend in the longitudinal direction of the vehicle body on the inner side of the vehicle on the roof side and is covered and stored from the inner side of the vehicle by the top sealing (25) , the airbag (23) is disposed below the airbag (23) . A pillar trim made of resin having a pillar trim body (27) that is positioned and has a lower end edge of the top ceiling (25) connected to the upper part and covering a vehicle inner side surface of the pillar part (3) of the vehicle body,
On the outer side of the upper part of the pillar trim body (27) , there are an upper wall part (31b, 33b , 35b) for guiding expansion of the airbag (23) to the inner side of the car , and the upper wall part (31b, 33b). , 35b) at least three jump bases (31 , 33, 35) formed in a substantially U-shaped cross section with side wall portions (31a, 33a, 35a) provided at both ends in the vehicle longitudinal direction, The lower ends of the opposing side wall portions (31a, 33a, 35a) of the adjacent jump bases (31 , 33, 35) that protrude integrally upward so as to be separated from each other are connected to the pillar trim body (27). Are integrally connected to each other by connecting portions (37, 39) projecting outward ,
Each connecting portion in the vehicle outer side of the (37, 39), spigot for engaging the exterior side in the plugged by insertion inlet (61) peripheral to the body of the pillar (3) of the insertion opening (61) (63) projecting integrally toward the outside of the vehicle,
The pillar trim body (27 ) between the adjacent connecting portions (37, 39) and below the connecting portions (37, 39 ) is directly or indirectly connected to the positioning hole (65) of the pillar portion (3). The boss portion (43) to be inserted into the vehicle is integrally projected toward the outside of the vehicle,
The near intersections of the side wall portion and (33a) bottom and the connecting portion (37) of the two joining portions jumping sandwiched between (37, 39) (33) intersects the plate surface and the longitudinal direction of the vehicle body, the pillar trim body A pillar trim of an automobile, wherein the pillar trim is integrally connected to the boss portion (43) by a plate-like reinforcing rib (45) integrally formed on the outer surface of the vehicle (27) . 請求項１に記載の自動車のピラートリムにおいて、
上記両連結部(37,39)に挟まれたジャンプ台(33)の両側壁部(33a)下端は、車体への組付け状態で車体前方又は後方に向かって下方に傾斜する線上に位置し、
上記両連結部(37,39)に挟まれたジャンプ台(33)の両側壁部(33a)のうちの下側に位置する側壁部(33a)下端と連結部(37)との交差部近傍は、上記補強リブ(45)によって上記ボス部(43)に一体に連結されていることを特徴とする自動車のピラートリム。 The pillar trim of an automobile according to claim 1.
The lower ends of both side wall portions (33a) of the jump stand (33) sandwiched between the two connecting portions (37, 39) are positioned on a line inclined downward toward the front or rear of the vehicle body when assembled to the vehicle body. ,
Near the intersection between the lower end of the side wall portion (33a) located on the lower side of the both side wall portions (33a) of the jump stand (33) sandwiched between the two connection portions (37, 39) and the connection portion (37) Is a pillar trim of an automobile which is integrally connected to the boss portion (43 ) by the reinforcing rib (45) .
JP2007315217A 2007-12-05 2007-12-05 Automotive pillar trim Active JP5005518B2 (en)

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