JP5684495B2 - Reinforcement structure of automobile door skin - Google Patents
Reinforcement structure of automobile door skin Download PDFInfo
- Publication number
- JP5684495B2 JP5684495B2 JP2010126679A JP2010126679A JP5684495B2 JP 5684495 B2 JP5684495 B2 JP 5684495B2 JP 2010126679 A JP2010126679 A JP 2010126679A JP 2010126679 A JP2010126679 A JP 2010126679A JP 5684495 B2 JP5684495 B2 JP 5684495B2
- Authority
- JP
- Japan
- Prior art keywords
- surface portion
- outer plate
- automobile
- shaped
- web
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000002787 reinforcement Effects 0.000 title description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 56
- 238000005452 bending Methods 0.000 claims description 28
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 239000013521 mastic Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000007787 solid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011156 evaluation Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
Description
本発明は、自動車のドアのアウターパネル（ドア外板と言う場合あり）などの自動車用車体外板の裏面側に設置される自動車用車体外板の補強部材及び該補強部材を備えた自動車用車体の外板補強構造に関する。 The present invention relates to a vehicle body outer plate reinforcing member installed on the back side of an automobile body outer plate such as an outer panel (sometimes referred to as a door outer plate) of an automobile door, and an automobile equipped with the reinforcing member. The present invention relates to a structure for reinforcing an outer plate of a vehicle body.
自動車のドアのアウターパネルなどの車体外板は鋼板などで形成されているが、軽量化のために車体外板の板厚を極力薄くすることが求められる。
しかしながら、板厚を薄くすると、例えば車にワックスを塗るような場合に車体外板を手で押し付けた場合にベカつき感を与えてしまい好ましくない。そのため、車体外板の面剛性（張り剛性ともいう）は手などで触った場合のべカつき品質を示す指標として重要視されている。
Car body outer plates such as outer panels of automobile doors are made of steel plates and the like, but it is required to reduce the thickness of the car body outer plates as much as possible in order to reduce weight.
However, if the plate thickness is reduced, for example, when a car body outer plate is pressed by hand when wax is applied to a car, a sticky feeling is given, which is not preferable. Therefore, the surface rigidity (also referred to as tension rigidity) of the vehicle body outer plate is regarded as important as an index indicating the quality of stickiness when touched with a hand.
車体外板の面剛性を向上させる目的で、従来から車体外板を補強することが行われている。従来の補強方法は主に２つに分類される。一つは、車体外板の裏側に熱硬化シートを貼付ける方法であり、もう一つはマスチックシーラーと呼ばれる軟質の接着剤により板金部品あるいは鋼管部品を車体外板の裏側に接合し、これによって車体外板を裏面側から支える方法である。 For the purpose of improving the surface rigidity of the vehicle body outer plate, the vehicle body outer plate has been conventionally reinforced. Conventional reinforcing methods are mainly classified into two. One is a method of sticking a thermosetting sheet to the back side of the vehicle body outer plate, and the other is a method of joining a sheet metal part or steel pipe component to the back side of the vehicle body outer plate with a soft adhesive called a mastic sealer. This is a method of supporting the vehicle body outer plate from the back side.
本願は後者の方法に関するものであるが、その従来例としては、例えば特許文献１に開示された自動車用車体外板補強構造がある。
特許文献１の自動車用車体外板補強構造に適用された補強部材（リンフォース）は、軸直交断面の形状がいわゆるハット形状の部材であって、それを車体外板の裏面側にマスチックシーラーで接着するというものである。
The present application relates to the latter method. As a conventional example, there is a vehicle body outer plate reinforcing structure disclosed in Patent Document 1, for example.
The reinforcing member (reinforce) applied to the vehicle body outer plate reinforcing structure of Patent Document 1 is a so-called hat-shaped member having a cross-sectional shape perpendicular to the axis, and is a mastic sealer on the back side of the vehicle body outer plate. Glue.
車体の軽量化のために車体外板を薄肉化しようとした場合、薄肉化によって低下する面剛性を向上させる補強部材の役割はより重要となる。
しかし、特許文献１に記載されたような従来一般的に用いられている断面がいわゆるハット形状のものでは車体外板の十分な剛性を得ることができず、剛性を増すためには当該部品の板厚を厚くするなどといった軽量化という目的と相反するような対策をとらざるを得ない場合があった。
When an attempt is made to reduce the thickness of the vehicle body outer plate to reduce the weight of the vehicle body, the role of the reinforcing member that improves the surface rigidity that decreases due to the reduction in the wall thickness becomes more important.
However, when the cross section generally used in the past as described in Patent Document 1 is a so-called hat shape, sufficient rigidity of the vehicle body outer plate cannot be obtained. In some cases, it has been necessary to take measures that contradict the purpose of weight reduction, such as increasing the plate thickness.
本発明はかかる課題を解決するためになされたものであり、部品自体の軽量化が可能でかつ、自動車のドア外板の面剛性向上効果の高い自動車のドア外板の補強構造を提供することを目的としている。
The present invention has been made to solve such a problem, and provides a reinforcing structure for an automobile door skin that can reduce the weight of the component itself and has a high effect of improving the surface rigidity of the automobile door skin. It is an object.
補強部材にとって重要なことは補強部材自体の剛性ではなく、補強部材が取り付けられることによって車体外板の面剛性が広い範囲に亘って向上し、ベカつき感がなくなるという車体外板への作用である。
そこで、発明者は、補強部材が前記作用を発揮するための補強部材の有するべき最も好ましい形状を見つけるべくモデル解析を行った。以下にモデル解析について説明する。
What is important for the reinforcing member is not the rigidity of the reinforcing member itself, but the fact that the reinforcing member is attached improves the surface rigidity of the vehicle body plate over a wide range and eliminates the feeling of stickiness. is there.
Therefore, the inventor conducted a model analysis in order to find the most preferable shape that the reinforcing member should have for the reinforcing member to exert the above-described action. The model analysis will be described below.
モデル解析の説明の前提として、車体外板の裏面側に補強部材をマスチックシーラーで接着し、車体外板の表面に押圧力が作用したときに、補強部材にどのような力が作用するかを説明する。図６はこれを説明する説明図であり、ドア外板３の裏面に軸方向断面がＬ形の補強部材１を接着した状態を示している。 As a premise for explanation of model analysis, what kind of force is applied to the reinforcing member when the reinforcing member is bonded to the back side of the vehicle body outer plate with a mastic sealer and the pressing force is applied to the surface of the vehicle body outer plate. explain. FIG. 6 is an explanatory view for explaining this, and shows a state in which the reinforcing member 1 having an L-shaped axial cross section is bonded to the back surface of the door outer plate 3.
図６（ａ）に示すように、Ｐ点に押圧力が作用すると、補強部材１には図中の実線矢印Ａと点線矢印Ｂで示す方向の曲げ応力が作用する。したがって、補強部材１がこの曲げ応力に抵抗することで、Ａ点が撓む（凹む）のを防止できる。つまり、補強部材１の実線矢印Ａと点線矢印Ｂ方向の曲げ剛性が高いほどドア外板３の面剛性を高くできることになる。
なお、図６（ｂ）のＱ点に押圧力が作用した場合には、図中の実線矢印Ｃと点線矢印Ｂで示す方向の曲げ応力が作用する。補強部材１がＬ形の場合には、実線矢印Ａ方向が実線矢印Ｃ方向よりも曲り易いので、以下の説明では図６（ａ）の方向に曲るような力を作用させるモデル解析を行った。
As shown in FIG. 6A, when a pressing force acts on the point P, bending stress in the directions indicated by the solid arrow A and the dotted arrow B in the figure acts on the reinforcing member 1. Therefore, the point A can be prevented from being bent (depressed) by the reinforcing member 1 resisting this bending stress. That is, the higher the bending rigidity of the reinforcing member 1 in the directions of the solid arrow A and the dotted arrow B, the higher the surface rigidity of the door outer plate 3 can be made.
When a pressing force is applied to point Q in FIG. 6B, bending stress in the direction indicated by solid line arrow C and dotted line arrow B in the figure acts. When the reinforcing member 1 is L-shaped, the direction of the solid arrow A is easier to bend than the direction of the solid arrow C. Therefore, in the following description, a model analysis that applies a force that bends in the direction of FIG. It was.
図７は解析モデルの説明図であり、マスチックシーラー固定点から補強部材１の軸直交方向に（補強部材１から離れる方向）に４つの評価点１、２、３、４を設定した。４つの評価点はマスチックシーラー固定点からの距離が40mm、50mm、60mm、70mmである。そして、各評価点でドア外板３に面直交方向の押圧力を作用させたときに、当該部位に2mmの変形が生ずるときの荷重（N）を求めるようにした。 FIG. 7 is an explanatory diagram of the analysis model, and four evaluation points 1, 2, 3, and 4 are set in the direction orthogonal to the axis of the reinforcing member 1 (the direction away from the reinforcing member 1) from the fixing point of the mastic sealer. The four evaluation points are 40 mm, 50 mm, 60 mm, and 70 mm from the mastic sealer fixing point. Then, when a pressing force in the direction perpendicular to the plane is applied to the door outer plate 3 at each evaluation point, a load (N) when a deformation of 2 mm occurs in the part is obtained.
解析モデルは、現在一般に用いられているハット形の元形状（図１１（ａ）参照）ものに加えて軸直交断面がＬ形のものとＵ形のものを用いて行った。
図８、図９は解析モデルの説明図である。図８は軸直交断面がＬ形の補強部材１を並行してドア外板３の裏面にマスチックシーラーで接着したものを示しており、図８（ａ）は斜視図、図８（ｂ）は軸直交断面を示している。図８（ｂ）において、マスチックシーラーによる接着部は固定点４として表示している（図９（ｂ）において同じ）。補強部材１における接着面部の幅は10mm、ウェブ面部の高さは40mm、板厚は0.6mmである。
また、図９は軸直交断面がＵ形の補強部材１を示しており、図９（ａ）は斜視図、図９（ｂ）は軸直交断面である。補強部材１における接着面部の幅は10mm、ウェブ面部（Ｕ字の両片部）の高さは20mm、板厚は0.6mmである。
The analysis model was performed using a hat-shaped original shape (see FIG. 11 (a)) that is generally used at present, and an L-shaped and U-shaped cross-section.
8 and 9 are explanatory diagrams of the analysis model. FIG. 8 shows a reinforcing member 1 having an L-shaped cross section that is bonded in parallel to the back surface of the door outer plate 3 with a mastic sealer. FIG. 8 (a) is a perspective view, and FIG. 8 (b) is a perspective view. An axis orthogonal cross section is shown. In FIG. 8 (b), the bonded portion by the mastic sealer is indicated as a fixed point 4 (the same in FIG. 9 (b)). The width of the adhesive surface portion in the reinforcing member 1 is 10 mm, the height of the web surface portion is 40 mm, and the plate thickness is 0.6 mm.
FIG. 9 shows the reinforcing member 1 having a U-shaped cross section perpendicular to the axis, FIG. 9A is a perspective view, and FIG. 9B is a cross section orthogonal to the axis. The width of the bonding surface portion in the reinforcing member 1 is 10 mm, the height of the web surface portion (U-shaped pieces) is 20 mm, and the plate thickness is 0.6 mm.
図１０は、面剛性基準を満足する範囲をマスチックシーラー固定点からの距離（シーラー効果半径）で示したグラフである。
図１０のグラフから断面Ｌ形のものが元形状よりも剛性が高く、逆にＵ形のものは従来形状よりも剛性が低いことが分かる。面剛性基準を満足する範囲をマスチックシーラー固定点からの距離を比べて見ると、元形状では52.0mm、Ｌ形では55.0mm、Ｕ形では49.6mmである。この解析実験から、補強部材１の形状として図８に示したＬ形のものは有効であるとの知見を得た。
FIG. 10 is a graph showing the range satisfying the surface rigidity standard by the distance (sealer effect radius) from the mastic sealer fixing point.
From the graph of FIG. 10, it can be seen that the L-shaped cross-section has higher rigidity than the original shape, and the U-shaped one has lower rigidity than the conventional shape. Comparing the distance from the fixed point of the mastic sealer, the range that satisfies the surface rigidity standard is 52.0mm for the original shape, 55.0mm for the L shape, and 49.6mm for the U shape. From this analysis experiment, it was found that the L-shaped member shown in FIG.
そこで、さらに検討をするため、図１１に示すような、元形状（図１１（ａ）参照）に加えて４つの形状（Ｌ40、Ｌ30、コ30、Ｚ30）（図１１（ｂ）〜（ｅ）参照）について同様のモデル解析を行った。補強部材の形状表記方法は、アルファベットが軸直交断面の略形状を示し、数字はウェブ面部の高さを示している。なお、各部材の単位長さあたりの質量は元形状を基準とし、Ｌ40、コ30、Ｚ30が2本で元形状と同等であり、Ｌ30が2本で元形状に対して−0.05g/mmであった。
解析結果を図１２の棒グラフに示す。このグラフからＬ30が元形状よりも剛性が低く、その他のものが元形状よりも剛性が高い。特にＺ30が突出して剛性が高いことが分かる。
Therefore, in order to further examine, in addition to the original shape (see FIG. 11A) as shown in FIG. 11, four shapes (L40, L30, C30, Z30) (FIGS. 11B to 11E) A similar model analysis was conducted for (see)). In the shape notation method of the reinforcing member, the alphabet indicates the approximate shape of the cross section perpendicular to the axis, and the number indicates the height of the web surface portion. The mass per unit length of each member is based on the original shape, L40, co30, Z30 are the same as the original shape with two L30, and two L30 are -0.05 g / mm to the original shape. Met.
The analysis results are shown in the bar graph of FIG. From this graph, L30 has lower rigidity than the original shape, and the others have higher rigidity than the original shape. In particular, it can be seen that Z30 protrudes and the rigidity is high.
さらに、Ｌ40、コ30、Ｚ30について、軸直交方向の変位についてモデル解析を行った。図１３はこのモデル解析の説明図であり、図中のＺ方向が調査の変位方向である。この結果、Ｚ方向の変位は、Ｌ40：1.05mm、コ30：0.64mm、Ｚ30：0.37mmであり、Ｚ30が最も小さく、次がコ30であり、最も大きいのがＬ40であった。コ30及びＺ30のＺ方向変位がＬ40よりも小さかったのは、ウェブ先端面部に設けた先端屈曲面部が長手方向の撓み変形を有効に拘束するためであると推察される。そして、Ｚ30が最も小さいことから屈曲方向が接着面部の逆方向にするのが最も効果的であることが分かる。 Further, model analysis was performed on the displacement in the direction perpendicular to the axis of L40, C30, and Z30. FIG. 13 is an explanatory diagram of this model analysis, and the Z direction in the figure is the displacement direction of the investigation. As a result, the displacement in the Z direction was L40: 1.05 mm, c30: 0.64 mm, Z30: 0.37 mm, Z30 was the smallest, the next was c30, and the largest was L40. The reason why the displacement in the Z direction of the cores 30 and Z30 is smaller than L40 is presumed to be because the leading end bending surface provided on the leading end surface of the web effectively restrains the bending deformation in the longitudinal direction. And since Z30 is the smallest, it turns out that it is most effective to make a bending direction into the reverse direction of an adhesion surface part.
以上のモデル解析から、補強部材１の形状に関し、以下のような知見を得た。
まず、Ｌ形の場合にはウェブ面部の高さを高くすれば有効であるが、ウェブ面部を高くすると、例えばドア内部部品への干渉の問題が生ずるし、また部材重量が大きくなるという問題がある。
これに対して、補強部材１の形状として、ドア外板３に接着される所定の幅を有する接着面部と、該接着面部の一辺側から屈曲して立ち上がるウェブ面部と、ウェブ面部の先端部に屈曲する先端屈曲面部を有するもの（上記の例ではコ形、Ｚ形）はウェブ面部の高さを小さくしても面剛性を向上できるので有効である。
本発明は上記の知見に基づくものであり、具体的には以下の構成からなるものである。
From the above model analysis, the following knowledge about the shape of the reinforcing member 1 was obtained.
First, in the case of the L shape, it is effective to increase the height of the web surface portion. However, if the web surface portion is increased, there is a problem that, for example, there is a problem of interference with internal parts of the door, and the weight of the member increases. is there.
On the other hand, as the shape of the reinforcing member 1, an adhesive surface portion having a predetermined width that is bonded to the door outer plate 3, a web surface portion that is bent and rises from one side of the adhesive surface portion, and a tip portion of the web surface portion. Those having a bent front end bending surface portion (in the above example, a U shape or a Z shape) are effective because the surface rigidity can be improved even if the height of the web surface portion is reduced.
The present invention is based on the above findings, and specifically comprises the following configuration.
（１）本発明に係る自動車のドア外板の補強構造は、自動車のドア外板の裏面側に設置されて前記自動車のドア外板の面剛性を向上させる前記自動車のドア外板の補強構造であって、
該補強構造は、２本の補強部材を所定間隔離して並行して、前記自動車のドア外板の裏面側に接着剤によって接着されて設置してなり、
前記各補強部材は、前記自動車のドア外板に沿う方向に延びるビーム状（棒状）の部材であって、
該ビーム状（棒状）の部材は、軸方向直交断面がＺ形状をしており、前記自動車のドア外板に接着される所定の幅を有する接着面部と、該接着面部の一辺側から屈曲して立ち上がるウェブ面部と、該ウェブ面部の先端部に該ウェブ面部に対して前記接着面部と反対方向に屈曲して設けられた先端屈曲面部からなり、
前記ビーム状（棒状）の部材の板厚が前記ウェブ面部の高さの１／６０以上、１／２０以下であることを特徴とするものである。
(1) A reinforcing structure for a door skin of an automobile according to the present invention is provided on the back side of the door skin of an automobile to improve the surface rigidity of the door skin of the automobile. Because
The reinforcing structure is installed by adhering two reinforcing members in parallel to each other with a predetermined interval, and being adhered to the back surface side of the automobile door skin by an adhesive,
Each of the reinforcing members is a beam-shaped (bar-shaped) member extending in a direction along the door outer plate of the automobile,
The beam-shaped (rod-shaped) member has a Z-shaped cross section perpendicular to the axial direction , and is bent from one side of the bonding surface portion and a bonding surface portion having a predetermined width bonded to the door outer plate of the automobile. A web surface portion that rises, and a tip bending surface portion that is provided at the tip portion of the web surface portion so as to be bent in a direction opposite to the adhesive surface portion with respect to the web surface portion,
The thickness of the beam-shaped (rod-shaped) member is 1/60 or more and 1/20 or less of the height of the web surface portion.
本発明に係る自動車のドア外板の補強構造は、自動車のドア外板の裏面側に設置されて前記自動車のドア外板の面剛性を向上させる前記自動車のドア外板の補強構造であって、
該補強構造は、２本の補強部材を所定間隔離して並行して、前記自動車のドア外板の裏面側に接着剤によって接着されて設置してなり、前記各補強部材は、前記自動車のドア外板に沿う方向に延びるビーム状（棒状）の部材であって、該ビーム状（棒状）の部材は、軸方向直交断面がＺ形状をしており、前記自動車のドア外板に接着される所定の幅を有する接着面部と、該接着面部の一辺側から屈曲して立ち上がるウェブ面部と、該ウェブ面部の先端部に該ウェブ面部に対して前記接着面部と反対方向に屈曲して設けられた先端屈曲面部からなり、前記ビーム状（棒状）の部材の板厚が前記ウェブ面部の高さの１／６０以上、１／２０以下であることを特徴とする自動車のドア外板の補強構造であることから、前記自動車用車体外板に適切な面剛性を与えることができ、自動車のドア外板の表面に押圧力が作用したときにベカつき感を与えないようにできる。
The automobile door skin reinforcement structure according to the present invention is a reinforcement structure of the automobile door skin that is installed on the back side of the automobile door skin and improves the surface rigidity of the automobile door skin. ,
The reinforcing structure is formed by installing two reinforcing members separated by a predetermined distance in parallel and adhered to the back surface side of the automobile door outer plate with an adhesive, and each reinforcing member is a door of the automobile. A beam-shaped (bar-shaped) member extending in a direction along the outer plate, and the beam-shaped (bar-shaped) member has a Z-shaped cross section orthogonal to the axial direction and is bonded to the door outer plate of the automobile. An adhesive surface portion having a predetermined width, a web surface portion that bends and rises from one side of the adhesive surface portion, and is provided at the tip of the web surface portion so as to be bent in the opposite direction to the adhesive surface portion. A reinforcing structure of a door outer plate of an automobile, comprising a bent end surface portion, wherein the thickness of the beam-like (rod-like) member is 1/60 or more and 1/20 or less of the height of the web surface portion. Therefore, it is suitable for the car body skin. Can provide rigidity, the pressing force on the surface of the vehicle door skin can be prevented from giving Beka with feeling when applied.
本発明の一実施の形態を図１、図２に基づいて説明する。本発明の一実施の形態に係る自動車用車体外板の補強部材１は、自動車用車体外板、例えばドア外板３の裏面側にマスチックシーラー５によって接着されてドア外板３の面剛性を向上させる補強部材であって、該補強部材１は、ドア外板３に沿って延びるビーム状の部材であって、ドア外板３に接着される接着面部７と、該接着面部７一辺側から略90°屈曲してドアインナ側（図示なし）に立ち上がるウェブ面部９と、ウェブ面部９の先端側でウェブ面部９に対して接着面部７と反対方向に屈曲する先端屈曲面部１１を有している。
なお、補強部材１は、図２に示すように、２本の補強部材１を所定の間隔を離して並行して設置するのが好ましい。
補強部材１の各部をより詳細に説明する。
An embodiment of the present invention will be described with reference to FIGS. A reinforcing member 1 for a vehicle body outer plate according to an embodiment of the present invention is bonded to a rear surface side of a vehicle body outer plate, for example, a door outer plate 3 by a mastic sealer 5 to increase the surface rigidity of the door outer plate 3. The reinforcing member 1 is a beam-shaped member that extends along the door outer plate 3, and includes an adhesive surface portion 7 that is bonded to the door outer plate 3, and one side of the adhesive surface portion 7. It has a web surface portion 9 that bends approximately 90 ° and rises to the door inner side (not shown), and a distal end bending surface portion 11 that bends in the opposite direction to the adhesive surface portion 7 with respect to the web surface portion 9 on the distal end side of the web surface portion 9 .
In addition, as shown in FIG. 2, the reinforcing member 1 preferably has two reinforcing members 1 installed in parallel at a predetermined interval.
Each part of the reinforcing member 1 will be described in more detail.
＜接着面部＞
本実施の形態における補強部材の接着面部７は、幅が10mmに設定されている。接着面部７はマスチックシーラー５によってドア外板３の裏面に接着されている（図２参照）。もっとも、幅は10mmに限定されるものではない。
<Adhesive surface>
The width of the adhesive surface portion 7 of the reinforcing member in the present embodiment is set to 10 mm. The bonding surface portion 7 is bonded to the back surface of the door outer plate 3 by a mastic sealer 5 (see FIG. 2). However, the width is not limited to 10 mm.
＜ウェブ面部＞
ウェブ面部９の高さは30mmに設定されている。ウェブ面部９の高さを30mmに設定したのは、補強部材１をドア外板３の裏面側に設置する場合には、ドアの部品との干渉を避けるためにウェブ面部９の高さを極力低くする必要があるところ、本例では30mmであれば前記ドア部品との干渉の問題が生じないからである。もっとも、ウェブ面部９の高さは30mmに限定されるものではない。
<Web section>
The height of the web surface portion 9 is set to 30 mm. The height of the web surface portion 9 is set to 30 mm because, when the reinforcing member 1 is installed on the back surface side of the door outer plate 3, the height of the web surface portion 9 is set as much as possible to avoid interference with door components. This is because, in this example, if it is 30 mm, there is no problem of interference with the door part. However, the height of the web surface portion 9 is not limited to 30 mm.
＜先端屈曲面部＞
先端屈曲面部１１は、接着面部７と反対方向に屈曲しており、その幅は4mmに設定されている。先端屈曲面部１１は3mmのＲ（アール）を介してウェブ面部９に連続して屈曲形成されている。
<Bend tip part>
The tip bending surface portion 11 is bent in the opposite direction to the bonding surface portion 7, and its width is set to 4 mm. The leading end bending surface portion 11 is continuously bent to the web surface portion 9 via 3 mm R (R).
本実施の形態に係る補強部材１をドア外板３の裏面側に設置することで、ドア外板３の表面側に押圧力が作用した場合に、補強部材１が作用する曲げ応力に対して抵抗することでドア外板３の面剛性を高めることができ、ベカつき感を防止することができる。
また、本実施の形態の補強部材１においては、ドア外板３の表面側に押圧力が作用した場合に補強部材１に作用する曲げ応力（図６参照）に対して効果的に抵抗できる形状にしたことにより、補強部材１の軽量化が実現できる。
By installing the reinforcing member 1 according to the present embodiment on the back surface side of the door outer plate 3, when a pressing force is applied to the front surface side of the door outer plate 3, the bending member acts on the bending stress. By resisting, the surface rigidity of the door outer plate 3 can be increased, and a feeling of stickiness can be prevented.
Moreover, in the reinforcement member 1 of this Embodiment, when the pressing force acts on the surface side of the door outer plate | board 3, the shape which can resist effectively with respect to the bending stress (refer FIG. 6) which acts on the reinforcement member 1 As a result, the weight of the reinforcing member 1 can be reduced.
なお、上記の実施の形態では先端屈曲面部１１を4mmにした例を示したが、本発明はこれに限定されるものではない。また、上記の実施の形態では先端屈曲面部１１をウェブ部に対して略直角に屈曲させた例を示したが、本発明はこれに限定されるものでもない。 In the above embodiment, the example in which the tip bending surface portion 11 is 4 mm is shown, but the present invention is not limited to this. Further, in the above-described embodiment, an example in which the tip bending surface portion 11 is bent at a substantially right angle with respect to the web portion is shown, but the present invention is not limited to this.
なお、先端屈曲面部１１の長さを変えた場合と形状を変えた場合のドア外板３の面剛性に与える影響について解析実験をしたので、図３、図４に基づいて説明する。 In addition, since the analysis experiment was performed about the influence which it has on the surface rigidity of the door outer plate | plate 3 when changing the length of the front-end | tip bending surface part 11, and changing a shape, it demonstrates based on FIG. 3, FIG.
先端屈曲面部１１の長さについて、4mm、6.5mm、10mm、15mmの４種類についてモデル解析を実施した（図３（ａ）参照）。また、先端屈曲面部１１の形状については、ウェブ直交方向に屈曲したあと、さらにウェブに平行になるように屈曲したものについてモデル解析を実施した（図３（ｂ）参照）。なお、補強部材１の板厚は全て0.55mmとした。
図４の棒グラフはこの結果を示すものであり、同図中の横軸のＷ=4、6.5、10、15は、それぞれ、先端屈曲面部１１の長さが4mm、6.5mm、10mm、15mmの４種類のモデル解析結果を、Ｗ=4+4はウェブ直交方向に屈曲したあと、さらにウェブに平行になるように屈曲したもののモデル解析結果を示している。図４に示されるように、先端屈曲面部１１の長さや形状は車体外板の面剛性（シーラー効果半径）にほとんど影響を与えないことが確認された。このことから、先端屈曲面部１１の長さは短く設定することで全体の重量を軽減できるので好ましい。
With respect to the length of the tip bending surface portion 11, model analysis was performed for four types of 4 mm, 6.5 mm, 10 mm, and 15 mm (see FIG. 3A). Moreover, about the shape of the front-end | tip bending surface part 11, after bending in the web orthogonal direction, the model analysis was implemented about what was further bent so that it might become parallel to a web (refer FIG.3 (b)). The plate thickness of the reinforcing member 1 was all 0.55 mm.
The bar graph of FIG. 4 shows this result. W = 4, 6.5, 10, 15 on the horizontal axis in FIG. 4 indicates that the length of the tip bent surface portion 11 is 4 mm, 6.5 mm, 10 mm, 15 mm, respectively. The four types of model analysis results, W = 4 + 4, show the model analysis results of the one bent in the web orthogonal direction and then bent so as to be parallel to the web. As shown in FIG. 4, it has been confirmed that the length and shape of the tip bending surface portion 11 hardly affects the surface rigidity (sealer effect radius) of the vehicle body outer plate. Therefore, it is preferable to set the length of the tip bending surface portion 11 to be short because the entire weight can be reduced.
なお、上記の実施の形態においては、補強部材１の板厚を0.55mmとしたが、補強部材１の板厚が車体外板の面剛性にどのような影響を与えるかについて、板厚tが、t=0.5mm、t=0.55mm、t=0.6mmの３種類についてモデル解析を行った。先端屈曲面部１１の長さは4mmであり、図４のＷ=4と同一形状とした。その結果を図５に示す。図５から分かるように、板厚増加により極僅かに外板の面剛性が向上するが、その効果は極微小であり、上記の３種類の板厚の範囲内では板厚の変化は車体外板の剛性にはほとんど影響がない。
したがって、板厚は薄めに設定することが好ましく、上記の３種類の板厚の中では、t=0.5mmに設定するのが最も好ましい。
しかしながら、板厚をさらに増加させれば車体外板の面剛性向上効果は大きくなる。一方で、板厚を増加すれば、それに伴って部材質量も増大する。
ある決まったウェブ面高さに対して板厚を増加させた場合、外板の面剛性は向上するが、その向上度合いは板厚を増加させるにつれて減少する。このため、板厚をある一定以上増やしても外板の面剛性を向上させる効果は少なくなり、その一方で板厚の増加分だけいたずらに質量が増大する。発明者は車両重量の増加を抑え、かつ外板の面剛性を有効に向上させるためには、板厚をウェブ面高さの１／２０以下とすることが有効であることを知見した。そこで、補強部材の板厚はウェブ面部の高さの１／２０以下に設定する。
In the above embodiment, the thickness of the reinforcing member 1 is set to 0.55 mm. However, the thickness t of how the thickness of the reinforcing member 1 affects the surface rigidity of the outer plate of the vehicle body. , T = 0.5 mm, t = 0.55 mm, t = 0.6 mm, model analysis was performed. The length of the tip bending surface portion 11 is 4 mm, which is the same shape as W = 4 in FIG. The result is shown in FIG. As can be seen from FIG. 5, the increase in the plate thickness slightly improves the surface rigidity of the outer plate, but the effect is extremely small, and within the above three types of plate thickness range, the change in the plate thickness is outside the vehicle body. There is almost no effect on the rigidity of the plate.
Therefore, it is preferable to set the plate thickness to be thin, and among the above three types of plate thicknesses, it is most preferable to set t = 0.5 mm.
However, if the plate thickness is further increased, the effect of improving the surface rigidity of the vehicle body outer plate is increased. On the other hand, if the plate thickness is increased, the mass of the member is increased accordingly.
When the plate thickness is increased with respect to a certain web surface height, the surface rigidity of the outer plate is improved, but the degree of improvement decreases as the plate thickness is increased. For this reason, even if the plate thickness is increased beyond a certain level, the effect of improving the surface rigidity of the outer plate is reduced, while the mass is increased by an amount corresponding to the increase in the plate thickness. The inventor has found that it is effective to make the plate thickness 1/20 or less of the web surface height in order to suppress an increase in vehicle weight and to effectively improve the surface rigidity of the outer plate. Therefore, the plate thickness of the reinforcing member is set to 1/20 or less of the height of the web surface portion.
上記実施の形態においては、補強部材１をドア外板に設置する例を示したが、補強部材１が設置される自動車用車体外板はドア外板に限られず、例えばエンジンフードやトランクリッドなどの他の部位にも用いることができる。 In the said embodiment, although the example which installs the reinforcement member 1 in a door outer plate was shown, the vehicle body outer plate in which the reinforcement member 1 is installed is not restricted to a door outer plate, For example, an engine hood, a trunk lid, etc. It can also be used for other sites.
１ 補強部材
３ ドア外板
４ 固定点
５ マスチックシーラー
７ 接着面部
９ ウェブ面部
１１ 先端屈曲面部
DESCRIPTION OF SYMBOLS 1 Reinforcement member 3 Door outer plate 4 Fixing point 5 Mastic sealer 7 Adhesive surface part 9 Web surface part 11 Tip bending surface part
Claims (1)
該補強構造は、２本の補強部材を所定間隔離して並行して、前記自動車のドア外板の裏面側に接着剤によって接着されて設置してなり、
前記各補強部材は、前記自動車のドア外板に沿う方向に延びるビーム状（棒状）の部材であって、
該ビーム状（棒状）の部材は、軸方向直交断面がＺ形状をしており、前記自動車のドア外板に接着される所定の幅を有する接着面部と、該接着面部の一辺側から屈曲して立ち上がるウェブ面部と、該ウェブ面部の先端部に該ウェブ面部に対して前記接着面部と反対方向に屈曲して設けられた先端屈曲面部からなり、
前記ビーム状（棒状）の部材の板厚が前記ウェブ面部の高さの１／６０以上、１／２０以下であることを特徴とする自動車のドア外板の補強構造。
A reinforcing structure of the automobile door skin that is installed on the back side of the automobile door skin to improve the surface rigidity of the automobile door skin ,
The reinforcing structure is installed by adhering two reinforcing members in parallel to each other with a predetermined interval, and being adhered to the back surface side of the automobile door skin by an adhesive,
Each of the reinforcing members is a beam-shaped (bar-shaped) member extending in a direction along the door outer plate of the automobile,
The beam-shaped (rod-shaped) member has a Z-shaped cross section perpendicular to the axial direction , and is bent from one side of the bonding surface portion and a bonding surface portion having a predetermined width bonded to the door outer plate of the automobile. A web surface portion that rises, and a tip bending surface portion that is provided at the tip portion of the web surface portion so as to be bent in a direction opposite to the adhesive surface portion with respect to the web surface portion,
A reinforcing structure of a door outer plate of an automobile, wherein a thickness of the beam-like (rod-like) member is 1/60 or more and 1/20 or less of a height of the web surface portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010126679A JP5684495B2 (en) | 2010-06-02 | 2010-06-02 | Reinforcement structure of automobile door skin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010126679A JP5684495B2 (en) | 2010-06-02 | 2010-06-02 | Reinforcement structure of automobile door skin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2011251624A JP2011251624A (en) | 2011-12-15 |
| JP5684495B2 true JP5684495B2 (en) | 2015-03-11 |
Family
ID=45415938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010126679A Active JP5684495B2 (en) | 2010-06-02 | 2010-06-02 | Reinforcement structure of automobile door skin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5684495B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022209198A1 (en) | 2021-04-02 | 2022-10-06 | 日本製鉄株式会社 | Automobile panel |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6015956B2 (en) * | 2013-09-25 | 2016-10-26 | Ｊｆｅスチール株式会社 | Method for reinforcing panel parts and panel parts reinforced by the method |
| JP6459941B2 (en) * | 2015-12-09 | 2019-01-30 | Ｊｆｅスチール株式会社 | Lightweight and highly rigid steel food panel parts for automobiles and methods for producing the same |
| CA3031470A1 (en) | 2016-07-28 | 2018-02-01 | Nippon Steel & Sumitomo Metal Corporation | Automotive exterior panel |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2596086Y2 (en) * | 1991-03-28 | 1999-06-07 | スズキ株式会社 | Car door structure |
| JP2566145Y2 (en) * | 1991-06-13 | 1998-03-25 | 三菱自動車工業株式会社 | Stiffener bonding structure |
| JP2003025842A (en) * | 2001-07-13 | 2003-01-29 | Daihatsu Motor Co Ltd | Door structure of automobile |
| JP4526359B2 (en) * | 2004-11-25 | 2010-08-18 | ダイハツ工業株式会社 | Vehicle door |
| JP4089723B2 (en) * | 2005-12-21 | 2008-05-28 | トヨタ自動車株式会社 | Hood airbag device for vehicle |
| JP4801524B2 (en) * | 2006-07-21 | 2011-10-26 | 株式会社神戸製鋼所 | Automotive hood |
-
2010
- 2010-06-02 JP JP2010126679A patent/JP5684495B2/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022209198A1 (en) | 2021-04-02 | 2022-10-06 | 日本製鉄株式会社 | Automobile panel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011251624A (en) | 2011-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5684495B2 (en) | Reinforcement structure of automobile door skin | |
| US9260137B2 (en) | Vehicle frame structure | |
| CN102695643B (en) | Hood structure of vehicle | |
| US8091318B2 (en) | Formed part for vehicle body structural member | |
| US20140354009A1 (en) | Vehicle frame structure | |
| US20090152416A1 (en) | Junction box mounting bracket | |
| US20160235196A1 (en) | Slide rail assembly | |
| EP1809514A1 (en) | Bumper with face-mounted reinforcer | |
| MA37463B2 (en) | System and method for slamming warpage prediction of folded sheet metal panels | |
| KR101622584B1 (en) | Panel part evaluation method, panel part evaluation device, and method for manufacturing panel part for automobiles | |
| US10494029B2 (en) | Vehicle front structure | |
| JP5691369B2 (en) | Vehicle front structure | |
| JP2016037242A (en) | Vehicle front structure | |
| WO2016204130A1 (en) | Bumper reinforcement structure | |
| ATE539948T1 (en) | SIDE REINFORCEMENT ELEMENT FOR THE FRONT OF AN AUTOMOBILE BODY | |
| JP2009184389A (en) | Roof reinforcement of automobile | |
| JP2009143252A (en) | Vehicle reinforcing structure | |
| JP2008024035A (en) | Vehicle front part structure | |
| JP6746222B2 (en) | Front pillar structure | |
| EP3057386A1 (en) | Slide rail assembly | |
| JP2012206703A (en) | Vehicle body skeleton structure | |
| JP5195215B2 (en) | Frame mall | |
| JP6253456B2 (en) | Vehicle member reinforcement structure | |
| JP5056323B2 (en) | Body front structure | |
| JP5384161B2 (en) | Fuel rail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20121227 |
|
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130925 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20131001 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20131126 |
|
| A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20140212 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20140409 |
|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20140805 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20141024 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20141024 |
|
| A911 | Transfer to examiner for re-examination before appeal (zenchi) |
Free format text: JAPANESE INTERMEDIATE CODE: A911 Effective date: 20141119 |
|
| TRDD | Decision of grant or rejection written | ||
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20150113 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20150115 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 5684495 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |