JP2009084844A - Door panel - Google Patents

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Publication number
JP2009084844A
JP2009084844A JP2007254458A JP2007254458A JP2009084844A JP 2009084844 A JP2009084844 A JP 2009084844A JP 2007254458 A JP2007254458 A JP 2007254458A JP 2007254458 A JP2007254458 A JP 2007254458A JP 2009084844 A JP2009084844 A JP 2009084844A
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plate
outer plate
internal reinforcing
inner plate
door panel
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Japanese (ja)
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Ryoji Uto
亮二 宇戸
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Caterpillar Japan Ltd
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Caterpillar Japan Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a door panel capable of recovering the strength lowered by the formation of a ventilation opening of an inside plate with an irregular shape in relation to an outside plate. <P>SOLUTION: An internal reinforcing frame body 61 is positioned and fixed between the outside plate 21 with a honeycomb vent hole-gathering portion 26 formed by gathering a plurality of assembled vent holes 25, and a protrusion 29 of the inside plate 23 which has the corresponding ventilation opening 30. In the internal reinforcing frame body 61, a tongue piece 62 is formed in a cut and raised shape at one side, and a recessed groove 63 is formed at a predetermined pitch on a downside surface. The internal reinforcing frame body 61 abuts on an uneven joint 42 of an internal reinforcing plate 41 for mounting a hinge. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

本発明は、外側板と内側板を備えたドアパネルに関する。   The present invention relates to a door panel including an outer plate and an inner plate.

図14は、作業機械としての油圧ショベル10を示し、下部走行体11に上部旋回体12が旋回可能に設けられ、この上部旋回体12上にキャブ13、作業装置14、エンジンなどの動力装置15が搭載されている。動力装置15は、上部カバー16およびサイドドア17,18などにより覆われている。サイドドア17,18は、後述するヒンジにより開閉自在に取付けられ、ラッチ装置19により閉じ状態が保持される。   FIG. 14 shows a hydraulic excavator 10 as a work machine, and an upper swing body 12 is turnably provided on a lower traveling body 11, and a cab 13, a work device 14, and a power device 15 such as an engine are mounted on the upper swing body 12. Is installed. The power unit 15 is covered with an upper cover 16 and side doors 17 and 18. The side doors 17 and 18 are attached so as to be openable and closable by a hinge which will be described later, and the closed state is maintained by a latch device 19.

作業機械のサイドドア17,18としては、外側板および内側板からなる2重構造のドアパネルがあり、このようなドアパネルの内側板は複数の凹部を有し、外側板にこの内側板の凹部を接着するとともに、外側板の周縁部をへミング加工することにより、外側板と内側板とを固定している(例えば、特許文献1参照)。
特開平9−228412号公報(第2頁、図8)
As the side doors 17 and 18 of the work machine, there is a double-structured door panel composed of an outer plate and an inner plate. The inner plate of such a door panel has a plurality of concave portions, and the concave portion of the inner plate is provided on the outer plate. While adhering, the outer side plate and the inner side plate are fixed by hemming the peripheral portion of the outer side plate (see, for example, Patent Document 1).
JP-A-9-228412 (second page, FIG. 8)

この従来のサイドドアは、内側板の凹部がある部分および外側板のへミング加工部分では、外側板および内側板が一体化して強度を確保できるが、外側板に対して内側板が間隙を有する凸部では、十分な強度を確保することが困難である。特に、内側板の凹部に酷暑対策用の通気用開口部を設けた場合は、この通気用開口部の周囲で強度不足が生じやすい。   In this conventional side door, the outer plate and the inner plate can be integrated to ensure the strength in the portion having the concave portion of the inner plate and the hemming portion of the outer plate, but the inner plate has a gap with respect to the outer plate. It is difficult to ensure sufficient strength at the convex portion. In particular, in the case where a vent opening for countermeasures against extreme heat is provided in the concave portion of the inner plate, insufficient strength tends to occur around the vent opening.

本発明は、このような点に鑑みなされたもので、外側板に対し凹凸状に成形された内側板の通気用開口部の設置によって低下した強度を補強できるドアパネルを提供することを目的とする。   This invention is made in view of such a point, and it aims at providing the door panel which can reinforce the intensity | strength reduced by installation of the opening part for ventilation | gas_flowing of the inner side board shape | molded unevenly with respect to the outer side board. .

請求項1に記載された発明は、穴を備えた外側板と、外側板に対し凹凸状に成形されるとともに外側板の内側面に固定される凹部に外側板の穴と対応する開口部を設けた内側板と、内側板の開口部の周囲に設けられた一連の凸部内の空間に配置された内部補強枠体とを具備したドアパネルである。   According to the first aspect of the present invention, an opening corresponding to the hole of the outer plate is formed in the outer plate having a hole, and a concave portion that is formed in an uneven shape with respect to the outer plate and is fixed to the inner surface of the outer plate. It is a door panel comprising an inner plate provided and an internal reinforcing frame disposed in a space in a series of convex portions provided around the opening of the inner plate.

請求項2に記載された発明は、請求項1記載のドアパネルにおいて、外側板と内側板の凸部との間の空間に充填された発泡材を備え、内部補強枠体は、この発泡材により固定されたものである。   According to a second aspect of the present invention, in the door panel according to the first aspect, a foam material filled in a space between the outer plate and the convex portion of the inner plate is provided, and the internal reinforcing frame is formed by the foam material. It is fixed.

請求項3に記載された発明は、請求項1または2記載のドアパネルにおいて、内側板の凸部と外側板との間に位置決めされて固定されたヒンジ取付用の内部補強板を備え、内部補強枠体は、この内部補強板に接着剤で接合されたものである。   According to a third aspect of the present invention, in the door panel according to the first or second aspect of the present invention, the door panel includes an internal reinforcing plate for hinge attachment that is positioned and fixed between the convex portion of the inner side plate and the outer side plate. The frame is bonded to the internal reinforcing plate with an adhesive.

請求項1に記載された発明によれば、外側板に対し凹凸状に成形された内側板の凹部に外側板の穴と対応する開口部を設け、この開口部の周囲に設けられた一連の凸部内の空間に内部補強枠体を配置したので、この内部補強枠体により、開口部の設置によって低下した強度を効果的に補強できる。   According to the invention described in claim 1, an opening corresponding to the hole of the outer plate is provided in the concave portion of the inner plate formed in an uneven shape with respect to the outer plate, and a series of the openings provided around the opening. Since the internal reinforcement frame is disposed in the space in the convex portion, the strength reduced by the installation of the opening can be effectively reinforced by the internal reinforcement frame.

請求項2に記載された発明によれば、外側板と内側板の凸部との間の空間に充填された発泡材により内部補強枠体を固定したので、内部補強枠体を外側板や内側板に固着処理しなくても、内部補強枠体が内部で動くことを防止でき、内部補強枠体を固定処理する手間を省くことができる。   According to the invention described in claim 2, since the internal reinforcement frame is fixed by the foam filled in the space between the outer plate and the convex portion of the inner plate, the internal reinforcement frame is fixed to the outer plate or the inner plate. Even without fixing to the plate, the internal reinforcing frame can be prevented from moving inside, and the labor of fixing the internal reinforcing frame can be saved.

請求項3に記載された発明によれば、内側板の凸部と外側板との間に位置決めされて固定されたヒンジ取付用の内部補強板に、内部補強枠体を接着剤で接合した場合は、内部補強板と内部補強枠体とが相互に補強し合って、ドアパネルの補強効果を向上できる。   According to the invention described in claim 3, when the internal reinforcing frame is joined to the internal reinforcing plate for hinge mounting, which is positioned and fixed between the convex portion of the inner plate and the outer plate, with an adhesive. Since the internal reinforcing plate and the internal reinforcing frame reinforce each other, the reinforcing effect of the door panel can be improved.

以下、本発明を、図1乃至図13に示された一実施の形態を参照しながら詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to one embodiment shown in FIGS.

図13は、作業機械としての油圧ショベル10を示し、下部走行体11に上部旋回体12が旋回可能に設けられ、この上部旋回体12上にキャブ13、作業装置14、エンジンなどの動力装置15が搭載されている。動力装置15は、上部カバー16およびサイドドア17などにより覆われている。サイドドア17は、後述するヒンジにより開閉自在に取付けられ、後述するラッチ装置により閉じ状態が保持される。   FIG. 13 shows a hydraulic excavator 10 as a work machine. An upper swing body 12 is turnably provided on a lower traveling body 11, and a cab 13, a work device 14, and a power device 15 such as an engine are mounted on the upper swing body 12. Is installed. The power unit 15 is covered with an upper cover 16, a side door 17, and the like. The side door 17 is attached so as to be openable and closable by a hinge which will be described later, and is kept closed by a latch device which will be described later.

図4乃至図8は、サイドドア17のドアパネル20を示し、図5および図6に示されるように、このドアパネル20は、外側板21と、この外側板21に対し凹凸状にプレス成形されて外側板21の内側面に凹部を固定されるとともに凸部と外側板21との間に空間22を形成する内側板23と、これらの外側板21と内側板23との間の空間22に充填された発泡材24とを具備している。   4 to 8 show the door panel 20 of the side door 17. As shown in FIGS. 5 and 6, the door panel 20 is formed by pressing the outer plate 21 and the outer plate 21 in an uneven shape. A concave portion is fixed to the inner surface of the outer plate 21 and an inner plate 23 that forms a space 22 between the convex portion and the outer plate 21, and a space 22 between the outer plate 21 and the inner plate 23 is filled. Foamed material 24 is provided.

外側板21は、内側板23の1.2〜5.0倍の板厚にする。言い換えれば、内側板23は、外側板21より薄い板厚の鉄板を用いる。例えば、外側板21を1.2mmの鉄板とした場合、内側板23は、相反する強度と加工性とを満足するために、0.6mm、0.8mmなどの鉄板を用いることが望ましい。   The outer plate 21 has a thickness 1.2 to 5.0 times that of the inner plate 23. In other words, the inner plate 23 uses an iron plate having a thickness smaller than that of the outer plate 21. For example, when the outer plate 21 is a 1.2 mm iron plate, the inner plate 23 is preferably an iron plate of 0.6 mm, 0.8 mm or the like in order to satisfy the conflicting strength and workability.

発泡材24は、図6に示されるように内側板23の内面に貼付された未発泡状態のシート状の発泡素材24aを、外側板21と内側板23との間の空間22内で加熱して発泡させ、成形する。発泡素材24aは、20倍程度の体積膨張率を有する高発泡性のゴム系吸音材が望ましい。発泡素材24aの加熱は、焼付塗装用加熱設備を用いて、焼付塗装と同時に行なうことが望ましい。   As shown in FIG. 6, the foam material 24 heats an unfoamed sheet-like foam material 24 a affixed to the inner surface of the inner plate 23 in a space 22 between the outer plate 21 and the inner plate 23. Foam and mold. The foam material 24a is desirably a highly foamable rubber-based sound absorbing material having a volume expansion coefficient of about 20 times. It is desirable to heat the foam material 24a simultaneously with the baking coating using a baking coating heating device.

図4および図7に示されるように、外側板21には、正6角形に形成された複数の穴としての通気穴25を通気穴25各辺の結合部を介してハニカム状に集合させた通気穴集合部としてのハニカム状通気穴集合部26が、穴加工により複数組設けられている。   As shown in FIG. 4 and FIG. 7, the outer plate 21 has a plurality of holes formed as regular hexagons, in which a plurality of holes 25 are gathered in a honeycomb shape through a joint portion of each side of the holes 25. A plurality of honeycomb-shaped vent hole assembly portions 26 as the vent hole assembly portions are provided by hole processing.

図8に示されるように、内側板23は、凹状に成形されて外側板21に接合された凹部としての接合部27,28と、これらの接合部27,28に対し膨出成形された凸部29とを具備している。   As shown in FIG. 8, the inner side plate 23 is formed in a concave shape and joined portions 27 and 28 as concave portions joined to the outer side plate 21, and convex portions formed by bulging with respect to the joined portions 27 and 28. Part 29.

内側板23の接合部27は、外側板21のハニカム状通気穴集合部26と対応して横方向に3列形成され、これらの接合部27には、外側板21のハニカム状通気穴集合部26より大きな開口部としての通気用開口部30がそれぞれ穴加工により設けられている。   The joint portions 27 of the inner plate 23 are formed in three rows in the horizontal direction corresponding to the honeycomb-like vent hole assembly portions 26 of the outer plate 21, and the honeycomb-like vent hole assembly portions of the outer plate 21 are formed in these joint portions 27. Ventilation openings 30 as openings larger than 26 are provided by drilling.

すなわち、外側板21のハニカム状通気穴集合部26と、内側板23の凹部としての接合部27に開口された通気用開口部30は、1対1で対応して複数組設けられているが、内側板23の通気用開口部30は、外側板21のハニカム状通気穴集合部26よりやや大きく形成されている。   That is, a plurality of sets of ventilation openings 30 opened on the honeycomb-shaped ventilation hole assembly portion 26 of the outer side plate 21 and the joining portion 27 as the concave portion of the inner side plate 23 are provided in one-to-one correspondence. The ventilation opening 30 of the inner plate 23 is formed to be slightly larger than the honeycomb-shaped ventilation hole assembly 26 of the outer plate 21.

図9乃至図11に示されるように、外側板21の周縁部31は、内側板23の周縁部32を包みこむように折返して押しつぶすようにヘミング加工する。すなわち、外側板21は、内側板23の周縁部32を包みこむように折返し平坦に押しつぶして形成された周縁部31により内側板23の周縁部32を咬込み結合するへミング加工部33を備えている。   As shown in FIGS. 9 to 11, the peripheral portion 31 of the outer plate 21 is hemmed so as to be folded and crushed so as to wrap around the peripheral portion 32 of the inner plate 23. That is, the outer plate 21 includes a hem processing portion 33 that bites and joins the peripheral portion 32 of the inner plate 23 with a peripheral portion 31 formed by folding back and flattening so as to wrap around the peripheral portion 32 of the inner plate 23. Yes.

図9に示されるように、内側板23の少なくとも周縁部32は、接着剤34により外側板21に接着され、この接着剤34によりへミング加工部33において外側板21と内側板23とを接合するとともにシールする。接着剤34は、粘性と熱硬化性を有するペーストタイプ構造用接着剤が望ましい。   As shown in FIG. 9, at least the peripheral edge portion 32 of the inner plate 23 is bonded to the outer plate 21 with an adhesive 34, and the outer plate 21 and the inner plate 23 are bonded to each other at the hemming portion 33 by the adhesive 34. And seal. The adhesive 34 is preferably a paste-type structural adhesive having viscosity and thermosetting properties.

図10および図11に示されるように、外側板21の周縁部31にて外側板21の角部の折返し部分、および中間折曲部の折返し部分をそれぞれ切欠いて、角部切欠き溝35および中間折曲部切欠き溝36が形成されている。外側板21の角部切欠き溝35と対応する内側板23の角部は、円弧状に成形されている。   As shown in FIG. 10 and FIG. 11, the corner portion of the outer plate 21 and the folded portion of the intermediate bent portion are notched at the peripheral edge portion 31 of the outer plate 21, respectively. An intermediate bent portion notch groove 36 is formed. The corners of the inner plate 23 corresponding to the corner cutout grooves 35 of the outer plate 21 are formed in an arc shape.

図1は、サイドドア17の分解斜視図を示し、外側板21と、この外側板21に対し位置決めされて外側板21の内側面に固定された内側板23との間で挟まれるようにして、ヒンジ取付用の内部補強板41が固定されている。   FIG. 1 shows an exploded perspective view of the side door 17 so that it is sandwiched between an outer plate 21 and an inner plate 23 that is positioned with respect to the outer plate 21 and fixed to the inner surface of the outer plate 21. The internal reinforcing plate 41 for attaching the hinge is fixed.

この内部補強板41は、中央部に凹凸部が繰返し形成された凹凸接合部42が設けられ、この凹凸接合部42の一端側および他端側にヒンジ取付面部43,44がそれぞれ連続的に形成され、これらのヒンジ取付面部43,44に隣接して、一方の位置決め用嵌合部45および他方の位置決め用嵌合部46が凹溝状に形成されている。   The internal reinforcing plate 41 is provided with a concave / convex joint portion 42 in which a concave / convex portion is repeatedly formed in the central portion, and hinge mounting surface portions 43 and 44 are continuously formed on one end side and the other end side of the concave / convex joint portion 42, respectively. One positioning fitting portion 45 and the other positioning fitting portion 46 are formed in a concave groove shape adjacent to the hinge mounting surface portions 43 and 44.

この内部補強板41に対し、内側板23のヒンジ取付側の凸部29には、中央部に凹凸部が繰返し形成された凹凸接合部47が設けられ、この凹凸接合部47の一端側および他端側にヒンジ取付窓48,49がそれぞれ開口され、これらのヒンジ取付窓48,49に隣接して、一方の位置決め用嵌合部51および他方の位置決め用嵌合部52が下方へ突出する突起状に形成されている。   With respect to the internal reinforcing plate 41, the convex portion 29 on the hinge mounting side of the inner plate 23 is provided with a concave / convex joint portion 47 in which a concave / convex portion is repeatedly formed in the center portion. Hinge mounting windows 48 and 49 are opened on the end sides, respectively, and one positioning fitting portion 51 and the other positioning fitting portion 52 protrude downwardly adjacent to the hinge mounting windows 48 and 49. It is formed in a shape.

内部補強板41は、一方の位置決め用嵌合部45と他方の位置決め用嵌合部46の大きさが異なる。同様に、内側板23は、一方の位置決め用嵌合部51と他方の位置決め用嵌合部52の大きさが異なる。内部補強板41と内側板23の一方の対応位置にそれぞれ設けられた一方の位置決め用嵌合部45と位置決め用嵌合部51は、相互に凹凸嵌合し、内部補強板41と内側板23の他方の対応位置にそれぞれ設けられた他方の位置決め用嵌合部46と位置決め用嵌合部52は、相互に凹凸嵌合する。   In the internal reinforcing plate 41, the size of one positioning fitting portion 45 and the other positioning fitting portion 46 are different. Similarly, in the inner plate 23, the size of one positioning fitting portion 51 and the other positioning fitting portion 52 are different. One positioning fitting portion 45 and positioning fitting portion 51 respectively provided at one corresponding position of the inner reinforcing plate 41 and the inner plate 23 are indented into each other so that the inner reinforcing plate 41 and the inner plate 23 are fitted. The other positioning fitting portion 46 and the positioning fitting portion 52 provided at the other corresponding position of each other are concavo-convexly fitted to each other.

この内部補強板41の位置決め嵌合時に、内部補強板41の凹凸接合部42が、接着剤の塗布された内側板23の凹凸接合部47の裏面に密着されるとともに、内部補強板41のヒンジ取付面部43,44が内側板23のヒンジ取付窓48,49に位置合わせされるので、これらのヒンジ取付窓48,49を通して、内部補強板41のヒンジ取付面部43,44にヒンジ53,54をそれぞれ溶接付けして取付ける。   During positioning and fitting of the internal reinforcing plate 41, the concave / convex joint portion 42 of the internal reinforcing plate 41 is brought into close contact with the back surface of the concave / convex joint portion 47 of the inner plate 23 coated with an adhesive, and the hinge of the internal reinforcing plate 41 Since the mounting surface portions 43 and 44 are aligned with the hinge mounting windows 48 and 49 of the inner plate 23, the hinges 53 and 54 are attached to the hinge mounting surface portions 43 and 44 of the internal reinforcing plate 41 through these hinge mounting windows 48 and 49. Install each by welding.

外側板21および内側板23には、ラッチ装置19を取付けるための取付穴55a,55bが設けられている。   The outer plate 21 and the inner plate 23 are provided with mounting holes 55a and 55b for mounting the latch device 19.

図1に示されるように、内側板23は、外側板21に対し凹凸状に成形されるとともに外側板21の内側面に固定される凹部としての接合部27に外側板21のハニカム状通気穴集合部26と対応する3列の通気用開口部30を設けたものであり、この内側板23の3列中央の通気用開口部30の周囲に設けられた一連の凸部29内の空間に、内部補強枠体61が配置されている。   As shown in FIG. 1, the inner side plate 23 is formed in an uneven shape with respect to the outer side plate 21, and the honeycomb-like ventilation hole of the outer side plate 21 is formed in a joint portion 27 as a concave portion fixed to the inner surface of the outer side plate 21. Three rows of ventilation openings 30 corresponding to the gathering portion 26 are provided, and in the space in the series of convex portions 29 provided around the ventilation openings 30 in the center of the three rows of the inner plate 23. An internal reinforcing frame 61 is disposed.

すなわち、複数の通気穴25を集合させたハニカム状通気穴集合部26を開口した外側板21と、内側板23の凸部29との間に、内部補強枠体61が位置決めされて固定されている。   That is, the inner reinforcing frame 61 is positioned and fixed between the outer plate 21 having the honeycomb-shaped vent hole assembly portion 26 in which the plurality of vent holes 25 are gathered and the convex portion 29 of the inner plate 23. Yes.

図2に示されるように、内部補強枠体61は、一側部に舌片62が切起し形成され、下側面の所定ピッチごとに凹溝63が形成されている。   As shown in FIG. 2, the internal reinforcing frame 61 is formed with tongue pieces 62 formed on one side portion, and recessed grooves 63 are formed at every predetermined pitch on the lower surface.

図3に示されるように、この内部補強枠体61は、ヒンジ取付用の内部補強板41の凹凸接合部42に溶接付けされた枠体受け面部42aに、舌片62が当接されている。   As shown in FIG. 3, the internal reinforcing frame 61 has a tongue piece 62 in contact with a frame receiving surface portion 42 a welded to the concave and convex joint portion 42 of the internal reinforcing plate 41 for hinge attachment. .

そして、図6に示されるように、外側板21と内側板23の凸部29との間の空間22に充填された発泡材24によって、内部補強枠体61が固定されているが、この内部補強枠体61の舌片62を、内部補強板41の枠体受け面部42aに接着剤で接合しても良い。その場合は、内部補強板41と内部補強枠体61とが分離している場合より、さらに強度の向上を図れる。   As shown in FIG. 6, the internal reinforcing frame 61 is fixed by the foam material 24 filled in the space 22 between the outer plate 21 and the convex portion 29 of the inner plate 23. The tongue piece 62 of the reinforcing frame 61 may be joined to the frame receiving surface portion 42a of the internal reinforcing plate 41 with an adhesive. In that case, the strength can be further improved as compared with the case where the internal reinforcing plate 41 and the internal reinforcing frame 61 are separated.

図12は、内部補強板41を組み込んだドアパネル20の製造方法を示し、(a)外側板21に対し凸状に膨出成形された内側板23の凸部29内に内部補強板41を位置決めして凹凸接合部42,47間に塗布された接着剤で接着する。外側板21と接合する内側板23および内部補強板41の接合部面にも、熱硬化性の接着剤34が塗布されている。(b)外側板21の周縁部31をへミング加工する途中の折曲かつ開放状態で、この外側板21の周縁部31内に接着剤塗布状態の内側板23を内部補強板41を介し嵌着して外側板21に対し内側板23および内部補強板41を位置決めする。(c)外側板21の周縁部31をへミング加工で内側板23の周縁部32を挟んで折返すことにより、外側板21の内側面に内側板23および内部補強板41を接合固定するとともにシールする。   FIG. 12 shows a method of manufacturing the door panel 20 incorporating the internal reinforcing plate 41. (a) Positioning the internal reinforcing plate 41 within the convex portion 29 of the inner plate 23 bulged and formed with respect to the outer plate 21. Then, the adhesive is applied between the concave and convex joint portions 42 and 47. A thermosetting adhesive 34 is also applied to the joint surfaces of the inner plate 23 and the inner reinforcing plate 41 that are joined to the outer plate 21. (B) The inner plate 23 in an adhesive-applied state is fitted into the peripheral portion 31 of the outer plate 21 with the inner reinforcing plate 41 in the bent and opened state while the peripheral portion 31 of the outer plate 21 is being hemmed. The inner plate 23 and the inner reinforcing plate 41 are positioned with respect to the outer plate 21. (C) The inner plate 23 and the inner reinforcing plate 41 are joined and fixed to the inner side surface of the outer plate 21 by folding the peripheral portion 31 of the outer plate 21 with the peripheral portion 32 of the inner plate 23 sandwiched by hemming. Seal.

図6に示されるように、内側板23は、凹状に形成されて外側板21に密着された接合部27に対し、凸部29が膨出成形されているが、この凸部29の膨出方向の中間部に段差状の補強変形部56が形成されている。内側板23の接合部27は、接着剤34により外側板21に接着され、接合部27に対する凸部29の立上り部分57は、連続的に円弧状に形成されている。   As shown in FIG. 6, the inner plate 23 has a convex portion 29 bulging out with respect to the joint portion 27 that is formed in a concave shape and is in close contact with the outer plate 21. A step-shaped reinforcing deformation portion 56 is formed in the middle of the direction. The joint portion 27 of the inner plate 23 is bonded to the outer plate 21 by the adhesive 34, and the rising portion 57 of the convex portion 29 with respect to the joint portion 27 is continuously formed in an arc shape.

凸部29および補強変形部56は、図8および図11などに示されるように凹状の接合部27に沿って無端状に形成されている。   The convex portion 29 and the reinforcing deformation portion 56 are formed endlessly along the concave joint portion 27 as shown in FIGS.

図8に示されるように、内側板23は、外側板21に接着剤により接着された接合部27中に、接着剤を溜める空間を有する接着剤溜め部68を備えている。この内側板23の接着剤溜め部68は、外側板21の通気穴25と対応する場所に設けられた通気用開口部30に沿って、縦方向の接合部27中に連続凸状に設けられている。   As shown in FIG. 8, the inner plate 23 includes an adhesive reservoir 68 having a space for storing an adhesive in a joint 27 bonded to the outer plate 21 with an adhesive. The adhesive reservoir 68 of the inner plate 23 is provided in a continuous convex manner in the longitudinal joint 27 along the vent opening 30 provided at a location corresponding to the vent hole 25 of the outer plate 21. ing.

図8に示されるように、内側板23は、接合部27,28に対し膨出成形された凸部29を備えているが、その凸部29の中でも、通気用開口部30の上下部には、外側板21に連続的に接着された横方向の接合部27に沿って連続的に膨出成形された突状の補強用凸部29aが設けられ、さらに、この補強用凸部29aを横断する方向に凹状に強化用凹部70が形成されている。   As shown in FIG. 8, the inner plate 23 includes convex portions 29 that are bulged with respect to the joint portions 27 and 28, and among the convex portions 29, the upper and lower portions of the vent opening 30 are provided. Is provided with a projecting reinforcing convex portion 29a which is continuously bulged and formed along a lateral joint portion 27 which is continuously bonded to the outer plate 21, and the reinforcing convex portion 29a is further provided. Reinforcing recesses 70 are formed in a concave shape in the transverse direction.

次に、このドアパネル20の製造工程を説明する。   Next, the manufacturing process of the door panel 20 will be described.

図6に示されるように内側板23の凸部29内に発泡素材24aを貼付し、図12(a)に示されるように内側板23の一側の凸部29内にヒンジ取付用の内部補強板41を接合し、さらに、内側板23の凹部としての接合部27および内部補強板41に、外側板21との接着に必要な熱硬化性の接着剤34を塗布し、図12(b)に示されるように外側板21と内側板23とを位置決めして重ね合わせ、図12(c)に示されるように外側板21の周縁部31をへミング加工で内側板23の周縁部32を挟んで折返し、折つぶすことにより、外側板21の内側面に内側板23および内部補強板41を接合する。   As shown in FIG. 6, a foam material 24a is affixed in the convex portion 29 of the inner plate 23, and the hinge mounting inner portion is placed in the convex portion 29 on one side of the inner plate 23 as shown in FIG. The reinforcing plate 41 is bonded, and further, a thermosetting adhesive 34 necessary for bonding to the outer plate 21 is applied to the bonding portion 27 as the concave portion of the inner plate 23 and the inner reinforcing plate 41, and FIG. The outer plate 21 and the inner plate 23 are positioned and overlapped as shown in FIG. 12 (c), and the peripheral portion 31 of the inner plate 23 is hemmed as shown in FIG. 12 (c). The inner plate 23 and the inner reinforcing plate 41 are joined to the inner side surface of the outer plate 21 by folding and folding.

そして、焼付塗装用加熱設備の加熱により、接着剤34を硬化させて外側板21に内側板23および内部補強板41を接着し、さらに、図6に示されるように焼付塗装用加熱設備の加熱により発泡素材24aを発泡させて、空間22内に発泡材24を充填し、さらに、焼付塗装用加熱設備の加熱により、外側板21および内側板23の外表面に予め吹付けられた塗料を焼付ける。   Then, the adhesive 34 is cured by heating of the baking coating heating equipment to bond the inner plate 23 and the internal reinforcing plate 41 to the outer plate 21, and further, as shown in FIG. 6, heating of the baking coating heating equipment. The foam material 24a is foamed by this, the space 22 is filled with the foam material 24, and the paint sprayed in advance on the outer surfaces of the outer plate 21 and the inner plate 23 is baked by heating of the baking coating heating equipment. wear.

例えば、接着剤34の熱硬化は、150℃で5分間の加熱をし、発泡材24の発泡は、150℃で20分間の加熱をし、焼付塗装は、180℃〜200℃で20分間の加熱をする。これらの加熱は、既存の焼付塗装用加熱設備を用いて行なうことができる。   For example, the thermosetting of the adhesive 34 is performed at 150 ° C. for 5 minutes, the foaming material 24 is foamed at 150 ° C. for 20 minutes, and the baking finish is performed at 180 ° C. to 200 ° C. for 20 minutes. Heat. These heating can be performed using the existing baking heating equipment.

最後に、図8に示されるように、内側板23のヒンジ取付窓48,49を通して、内部補強板41のヒンジ取付面部43,44にヒンジ53,54をそれぞれ隅肉溶接などで溶接付けして取付けるとともに、外側板21および内側板23の取付穴55a,55bにラッチ装置19を取付ける。   Finally, as shown in FIG. 8, the hinges 53 and 54 are welded to the hinge mounting surface portions 43 and 44 of the internal reinforcing plate 41 by fillet welding or the like through the hinge mounting windows 48 and 49 of the inner plate 23, respectively. At the same time, the latch device 19 is attached to the mounting holes 55a and 55b of the outer plate 21 and the inner plate 23.

次に、図1乃至図13に示された実施の形態の効果を説明する。   Next, effects of the embodiment shown in FIGS. 1 to 13 will be described.

図6に示されるように、外側板21とこの外側板21より薄い内側板23とで形成された中空の閉断面構造により軽量化を図ることができるとともに、内側板23とこれより厚い(内側板23の1.2〜5.0倍の板厚を有する)外側板21とで形成された十分な高さをもった中空の閉断面構造により、外側からの衝撃に対して十分な強度を確保できる強固なドアパネルを安価に提供できる。   As shown in FIG. 6, the hollow closed cross-sectional structure formed by the outer plate 21 and the inner plate 23 thinner than the outer plate 21 can reduce the weight, and the inner plate 23 is thicker than the inner plate 23 (inner side). The hollow closed cross-section structure with a sufficient height formed with the outer plate 21 (having a plate thickness 1.2 to 5.0 times that of the plate 23) provides sufficient strength against impact from the outside. A strong door panel that can be secured can be provided at low cost.

さらに、外側板21と内側板23との間に充填された発泡材24により振動を吸収して、ドアパネル自体から発生する音を効果的に減衰させることができ、すなわち音の減衰効果が高く、低騒音化を図ることができる。   Furthermore, the vibration can be absorbed by the foam material 24 filled between the outer plate 21 and the inner plate 23, and the sound generated from the door panel itself can be effectively attenuated, that is, the sound attenuation effect is high. Low noise can be achieved.

図5および図8に示されるように、内側板23の凹状に成形された接合部27に対して凸部29を膨出成形することで、内側板23は、外側板21より薄い板厚であっても、凹凸構造により剛性を増すように成形して、強度を上げることができる。   As shown in FIGS. 5 and 8, the inner plate 23 is thinner than the outer plate 21 by bulging and forming the convex portion 29 with respect to the joint portion 27 formed in the concave shape of the inner plate 23. Even if it exists, it can shape | mold so that rigidity may be increased with a concavo-convex structure and can raise intensity | strength.

図9および図10に示されるように、内側板23の周縁部32を包みこむように外側板21の周縁部31を折返し押しつぶして形成されたヘミング加工部により、内側板23より板厚の厚い外側板21であっても、一定形状のヘミング加工部33を得ることができ、安定した品質の折返結合部を得ることができる。   As shown in FIG. 9 and FIG. 10, the hemming portion formed by folding and crushing the peripheral edge 31 of the outer plate 21 so as to wrap around the peripheral edge 32 of the inner plate 23 causes the outer thickness of the outer plate 21 to be thicker than that of the inner plate 23. Even with the plate 21, a hemming portion 33 having a fixed shape can be obtained, and a folded joint portion with stable quality can be obtained.

すなわち、外側板21の周縁部により内側板23の周縁部を咬込み結合するへミング加工部33は、内側板23の周縁部を包みこむように折返して平坦に押しつぶされたので、外側板21の折曲げ加工部を円形断面に膨出させる従来のへミング仕上より、外側板21のへミング加工部33の形状を安定させ、均一な品質を保つことができる。   That is, the hemming portion 33 that bites and joins the peripheral edge portion of the inner side plate 23 with the peripheral edge portion of the outer side plate 21 is folded back so as to wrap around the peripheral edge portion of the inner side plate 23. The shape of the hemming portion 33 of the outer plate 21 can be stabilized and the uniform quality can be maintained from the conventional hemming finish in which the bent portion is bulged into a circular cross section.

このとき、外側板21の角部および中間折曲部では外側板21の周縁部を折返す加工も容易でないが、図10および図11に示されるように角部切欠き溝35により外側板21の角部の折返し部分を切欠いたので、また中間折曲部切欠き溝36により外側板21の中間折曲部の折返し部分を切欠いたので、外側板21の角部および中間折曲部でも、外側板21の周縁部31を折返して平坦に押しつぶす加工を容易にかつ正確にできる。   At this time, it is not easy to fold the peripheral edge of the outer plate 21 at the corner and the intermediate bent portion of the outer plate 21, but the outer plate 21 is cut by the corner notch groove 35 as shown in FIGS. Since the folded portion of the corner portion of the outer plate 21 is cut out by the middle bent portion cutout groove 36, the corner portion and the middle bent portion of the outer plate 21 are also cut out. It is possible to easily and accurately process the peripheral portion 31 of the outer plate 21 to be folded back and flattened.

図9に示されるように、外側板21と内側板23とを、接着剤34による接着と、外側板21のへミング加工部33とにより、確実に一体化できる。   As shown in FIG. 9, the outer plate 21 and the inner plate 23 can be reliably integrated by bonding with the adhesive 34 and the hemming portion 33 of the outer plate 21.

図10に示されるように、外側板21の角部切欠き溝35と対応する内側板23の角部を円弧状に成形したので、内側板23の角部が外側板21の角部切欠き溝35から突出することを防止できる。   As shown in FIG. 10, the corners of the inner side plate 23 corresponding to the corner notch grooves 35 of the outer side plate 21 are formed in an arc shape so that the corners of the inner side plate 23 are the corner notches of the outer side plate 21. Protruding from the groove 35 can be prevented.

図11に示されるように、内側板23の通気用開口部30は、外側板21のハニカム状通気穴集合部26より大きく設けられたので、外側板21の内側面に内側板23を一体化する際に製造上の公差が生じても、すなわち、プレス成形品の形状公差の大きさにより外側板21および内側板23の位置合わせが正確でなくても、外側板21のハニカム状通気穴集合部26は、通気用開口部30の範囲内でずれるので、内側板23が外側板21のハニカム状通気穴集合部26を塞ぐことを防止でき、外側板21および内側板23の通気用の開口面積が損なわれることがなく、所定の開口面積を確保できるとともに、外側板21および内側板23の位置合わせを容易にでき、製造時の作業性も向上できる。   As shown in FIG. 11, the ventilation opening 30 of the inner plate 23 is provided larger than the honeycomb-shaped ventilation hole assembly 26 of the outer plate 21, so that the inner plate 23 is integrated with the inner surface of the outer plate 21. Even when manufacturing tolerances occur, that is, even if the alignment of the outer plate 21 and the inner plate 23 is not accurate due to the size tolerance of the press-formed product, the honeycomb-like vent hole set of the outer plate 21 Since the portion 26 is displaced within the range of the ventilation opening 30, it is possible to prevent the inner plate 23 from blocking the honeycomb-shaped ventilation hole assembly portion 26 of the outer plate 21, and the ventilation openings of the outer plate 21 and the inner plate 23 can be prevented. The area is not damaged, a predetermined opening area can be secured, the outer plate 21 and the inner plate 23 can be easily aligned, and the workability during manufacturing can be improved.

図8に示されるように、複数組のハニカム状通気穴集合部26および通気用開口部30により、十分な通気用の開口面積を確保できる。   As shown in FIG. 8, a sufficient ventilation opening area can be secured by the plurality of sets of honeycomb-shaped ventilation hole assembly portions 26 and the ventilation opening portions 30.

図11に示されるように、外側板21および内側板23の2重構造のドアパネルにおいて、内側板23の限られた通気用開口部30に対し、外側板21にハニカム状に高密度に開口可能な通気穴25により、開口面積効率の高いハニカム状通気穴集合部26を形成できるとともに、このハニカム状通気穴集合部26は、正6角形に形成された複数の通気穴25を通気穴各辺の結合部を介してハニカム状に集合させたので、各通気穴25間の結合部強度を確保しつつ、その結合部を細くして流体抵抗を小さくすることが可能であり、通気穴25間の結合部が空気流れを阻害することに因る乱流の発生を、丸穴や4角穴を集合させた通気穴集合部より低減できる。   As shown in FIG. 11, in the double-structure door panel of the outer plate 21 and the inner plate 23, the outer plate 21 can be opened with a high density in a honeycomb shape with respect to the limited ventilation opening 30 of the inner plate 23. The air vent 25 can form a honeycomb-shaped vent hole assembly portion 26 with high opening area efficiency. The honeycomb-shaped vent hole assembly portion 26 has a plurality of regular hexagonal vent holes 25 connected to each side of the vent hole. Since it is assembled in a honeycomb shape via the joint portions, it is possible to reduce the fluid resistance by narrowing the joint portions while ensuring the strength of the joint portions between the vent holes 25. The generation of turbulent flow due to the air flow being obstructed by the joint portion can be reduced from the vent hole assembly portion in which round holes and square holes are assembled.

図1に示されるように、ドアパネル20の外側板21に対して内側板23が膨出された凸部29にて内側板23と外側板21との間で固定された内部補強板41によって、凸部29での強度を補強でき、特に、この内部補強板41は、内側板23に対し凹凸嵌合により位置決めされたので、製造時に凹凸嵌合しておきさえすれば、正確に内部補強板41の位置を制御でき、最も効率的に補強が効いてくる位置に内部補強板41を正確に位置決め固定することができる。   As shown in FIG. 1, the inner reinforcing plate 41 fixed between the inner plate 23 and the outer plate 21 at the convex portion 29 in which the inner plate 23 bulges with respect to the outer plate 21 of the door panel 20, The strength at the convex portion 29 can be reinforced, and in particular, the internal reinforcing plate 41 is positioned by the concave-convex fitting with respect to the inner plate 23. The position of 41 can be controlled, and the internal reinforcing plate 41 can be accurately positioned and fixed at the position where the reinforcement works most efficiently.

すなわち、一方の位置決め用嵌合部45,51の凹凸嵌合と他方の位置決め用嵌合部46,52の凹凸嵌合とにより、内側板23に対する長尺の内部補強板41の位置決めを容易かつ確実にできる。   That is, the positioning of the long internal reinforcing plate 41 with respect to the inner plate 23 is facilitated by the concave / convex fitting of one positioning fitting portion 45, 51 and the concave / convex fitting of the other positioning fitting portion 46, 52. You can be sure.

一方の位置決め用嵌合部45,51と他方の位置決め用嵌合部46,52は大きさが異なるので、内部補強板41の向きが異なると、内側板23の位置決め用嵌合部51,52と内部補強板41の位置決め用嵌合部45,46の位置合わせができなくなることから、方向性を有する内部補強板41を内側板23内に正確に組込むことができる。   Since the positioning fitting portions 45, 51 on one side and the positioning fitting portions 46, 52 on the other side are different in size, if the orientation of the internal reinforcing plate 41 is different, the positioning fitting portions 51, 52 of the inner plate 23 are different. Since the positioning fitting portions 45 and 46 of the internal reinforcing plate 41 cannot be aligned, the internal reinforcing plate 41 having directionality can be accurately incorporated into the inner plate 23.

内側板23に開口されたヒンジ取付窓48,49を通して内部補強板41のヒンジ取付面部43,44にヒンジ53,54を溶接付したので、内側板23にヒンジ53,54を取付ける場合よりもヒンジ53,54の取付強度を向上できる。   Since the hinges 53 and 54 are welded to the hinge mounting surface portions 43 and 44 of the internal reinforcing plate 41 through the hinge mounting windows 48 and 49 opened in the inner plate 23, the hinge is more than the case where the hinges 53 and 54 are attached to the inner plate 23. The mounting strength of 53 and 54 can be improved.

図12に示されるように、外側板21の周縁部31をへミング加工する途中の折曲かつ開放状態で外側板21の周縁部31内に接着剤塗布状態の内側板23を内部補強板41を介し嵌着して位置決めし、外側板21の周縁部31をへミング加工で内側板23の周縁部32を挟んで折返すことにより外側板21の内側面に内側板23および内部補強板41を固定したので、外側板21のへミング加工途中の周縁部31を内側板23の位置決めに有効利用しながら、外側板21に対し凹凸状に成形された内側板23の凸部29での強度を内部補強板41により確保できるドアパネルの製造方法を提供できる。   As shown in FIG. 12, the inner plate 23 in an adhesive-applied state is attached to the inner reinforcing plate 41 in the peripheral portion 31 of the outer plate 21 in a bent and opened state while the peripheral portion 31 of the outer plate 21 is hemmed. The inner plate 23 and the inner reinforcing plate 41 are placed on the inner surface of the outer plate 21 by folding and positioning the peripheral portion 31 of the outer plate 21 with the peripheral portion 32 of the inner plate 23 sandwiched therebetween by hemming. Since the peripheral edge 31 in the middle of the hemming process of the outer side plate 21 is effectively used for positioning the inner side plate 23, the strength at the convex portion 29 of the inner side plate 23 that is formed in a concavo-convex shape with respect to the outer side plate 21 is secured. Can be secured by the internal reinforcing plate 41.

図6に示されるように、外側板21と内側板23とで形成される中空の閉断面構造により十分な強度を確保できるとともに、内側板23は、外側板21に密着された接合部27に対し膨出成形された凸部29の中間部に補強変形部56を段差状に形成したので、このような補強変形部56を設けることなく単に凸部29を形成した内側板より、強度の向上を図ることができ、ドアパネル全体の強度を向上できる。   As shown in FIG. 6, sufficient strength can be secured by the hollow closed cross-sectional structure formed by the outer plate 21 and the inner plate 23, and the inner plate 23 is connected to the joint portion 27 that is in close contact with the outer plate 21. On the other hand, since the reinforced deformation part 56 is formed in a stepped shape in the middle part of the bulge-formed convex part 29, the strength is improved compared to the inner plate in which the convex part 29 is simply formed without providing such a reinforced deformation part 56. And the strength of the entire door panel can be improved.

図8に示されるように、接合部27と、この接合部27に沿って無端状に形成された凸部29および補強変形部56は、相互に補強し合って、内側板23の強度を全体にわたって向上させることができる。   As shown in FIG. 8, the joint portion 27, the convex portion 29 formed in an endless manner along the joint portion 27, and the reinforcing deformation portion 56 reinforce each other so that the strength of the inner plate 23 is increased as a whole. Can be improved over time.

図8に示されるように、外側板21に接着剤により接着された内側板23の接合部27中に、接着剤を溜める接着剤溜め部68を設けたので、外側板21に内側板23を押圧して密着させたとき、外側板21と内側板23の接合部27との間から押出された接着剤は、接着剤溜め部68内の接着剤溜め空間に残留して、この接着剤が硬化したときの接合力を保持できる。縦方向の接合部27中に連続的に設けられた接着剤溜め部68は、サイドドアとして用いるときに上下方向の柱としても機能し、上下方向の荷重に対する強度を向上できる。   As shown in FIG. 8, an adhesive reservoir 68 for accumulating adhesive is provided in the joint 27 of the inner plate 23 bonded to the outer plate 21 with an adhesive. When pressed and adhered, the adhesive extruded from between the outer plate 21 and the joint portion 27 of the inner plate 23 remains in the adhesive reservoir space in the adhesive reservoir 68, and this adhesive is Bonding strength when cured can be maintained. When used as a side door, the adhesive reservoir 68 continuously provided in the longitudinal joining portion 27 also functions as a vertical column, and can improve strength against a vertical load.

外側板21に連続的に接着された内側板23の接合部27に沿って、図8に示されるように連続的に膨出成形された突状の補強用凸部29aにより、外側板21に接着された内側板23の強度を向上させる補強ができるとともに、補強用凸部29aを横断する方向に凹状に形成された強化用凹部70により、補強用凸部29aによる補強をより強固なものにすることができ、要するに、相互に交差する方向性の補強用凸部29aと強化用凹部70とで内側板23に複雑な凹凸形状を付けることにより、内側板23の補強をより強固なものにすることができる。   As shown in FIG. 8, along the joint portion 27 of the inner plate 23 continuously bonded to the outer plate 21, the projecting reinforcing convex portion 29a continuously bulging and forming is formed on the outer plate 21. Reinforcement that improves the strength of the bonded inner plate 23 can be achieved, and the reinforcing concave portion 70 formed in a concave shape in a direction transverse to the reinforcing convex portion 29a makes the reinforcement by the reinforcing convex portion 29a stronger. In short, the inner plate 23 can be strengthened by reinforcing the inner plate 23 by forming a complicated uneven shape on the inner plate 23 by the reinforcing convex portions 29a and the reinforcing concave portions 70 that intersect each other. can do.

図1乃至図3に示されるように、外側板21に対し凹凸状に成形された内側板23の接合部27に外側板21のハニカム状通気穴集合部26と対応する通気用開口部30を設け、この通気用開口部30の周囲に設けられた一連の凸部29内の空間22に内部補強枠体61を配置したので、この内部補強枠体61により、通気用開口部30の設置によって低下した強度を効果的に補強できる。   As shown in FIGS. 1 to 3, a vent opening 30 corresponding to the honeycomb-like vent hole assembly 26 of the outer plate 21 is formed in the joint portion 27 of the inner plate 23 that is formed in an uneven shape with respect to the outer plate 21. Since the internal reinforcement frame 61 is disposed in the space 22 in the series of convex portions 29 provided around the ventilation opening 30, the internal reinforcement frame 61 allows the ventilation opening 30 to be installed. The reduced strength can be effectively reinforced.

図6に示されるように、外側板21と内側板23の凸部29との間の空間22に充填された発泡材24により内部補強枠体61を固定したので、内部補強枠体61を外側板21や内側板23に固着処理しなくても、内部補強枠体61が内部で動くことを防止でき、内部補強枠体61を固定処理する手間を省くことができる。   As shown in FIG. 6, since the internal reinforcing frame 61 is fixed by the foam material 24 filled in the space 22 between the outer plate 21 and the convex portion 29 of the inner plate 23, the inner reinforcing frame 61 is moved to the outer side. Even if the inner plate 23 and the inner plate 23 are not fixed, it is possible to prevent the inner reinforcing frame 61 from moving inside, and the labor for fixing the inner reinforcing frame 61 can be saved.

さらに、内側板23の凸部29と外側板21との間に位置決めされて固定されたヒンジ取付用の内部補強板41に、内部補強枠体61の舌片62を接着剤で接合した場合は、内部補強板41と内部補強枠体61とが相互に補強し合って、ドアパネル20の補強効果を向上できる。   Further, when the tongue piece 62 of the internal reinforcing frame 61 is joined to the internal reinforcing plate 41 for hinge attachment, which is positioned and fixed between the convex portion 29 of the inner plate 23 and the outer plate 21, with an adhesive. The internal reinforcing plate 41 and the internal reinforcing frame 61 reinforce each other, and the reinforcing effect of the door panel 20 can be improved.

本発明は、図13または図14に示された油圧ショベルなどの作業機械のドアパネルに利用可能である。   The present invention can be used for a door panel of a work machine such as a hydraulic excavator shown in FIG.

本発明に係るドアパネルの一実施の形態を示す分解斜視図である。It is a disassembled perspective view which shows one Embodiment of the door panel which concerns on this invention. 同上ドアパネルの内部補強枠体を示す側面図である。It is a side view which shows the internal reinforcement frame body of a door panel same as the above. 同上ドアパネルの内部補強枠体の取付構造を示す斜視図である。It is a perspective view which shows the attachment structure of the internal reinforcement frame body of a door panel same as the above. 同上ドアパネルの外面図である。It is an external view of a door panel same as the above. 図4のV−V線断面図である。It is the VV sectional view taken on the line of FIG. 図5の拡大断面図である。It is an expanded sectional view of FIG. 同上ドアパネルの外面側の斜視図である。It is a perspective view of the outer surface side of a door panel same as the above. 同上ドアパネルの内面側の斜視図である。It is a perspective view of the inner surface side of a door panel same as the above. 同上ドアパネルのヘミング加工部の断面図である。It is sectional drawing of the hemming process part of a door panel same as the above. 同上ドアパネルのヘミング加工部の内面図である。It is an internal view of the hemming process part of a door panel same as the above. 同上ドアパネルの内面側の拡大斜視図である。It is an expansion perspective view of the inner surface side of a door panel same as the above. 同上ドアパネルの内部補強板の装着工程を示す断面図であり、(a)は内側板内に内部補強板を位置決めして接着した断面図であり、(b)は外側板のへミング加工途中の周縁部内に内側板および内部補強板を位置決めした断面図であり、(c)は外側板をへミング加工して内側板および内部補強板を接合固定した断面図である。It is sectional drawing which shows the mounting process of the internal reinforcement board of a door panel same as the above, (a) is sectional drawing which positioned and adhered the internal reinforcement board in the inner side board, (b) is in the middle of the hemming process of an outer side board It is sectional drawing which positioned the inner side board and the internal reinforcement board in the peripheral part, (c) is sectional drawing which carried out the hemming process of the outer side board, and joined and fixed the inner side board and the internal reinforcement board. 同上ドアパネルを備えた作業機械の平面図である。It is a top view of the working machine provided with the door panel same as the above. 従来の作業機械の概要を示す斜視図である。It is a perspective view which shows the outline | summary of the conventional working machine.

符号の説明Explanation of symbols

21 外側板
22 空間
23 内側板
24 発泡材
25 穴としての通気穴
27 凹部としての接合部
29 凸部
30 開口部としての通気用開口部
41 内部補強板
61 内部補強枠体
21 Outer plate
22 space
23 Inner plate
24 Foam
25 ventilation holes as holes
27 Joint as a recess
29 Convex
30 Ventilation opening as opening
41 Internal reinforcing plate
61 Internal reinforcement frame

Claims (3)

穴を備えた外側板と、
外側板に対し凹凸状に成形されるとともに外側板の内側面に固定される凹部に外側板の穴と対応する開口部を設けた内側板と、
内側板の開口部の周囲に設けられた一連の凸部内の空間に配置された内部補強枠体と
を具備したことを特徴とするドアパネル。
An outer plate with holes,
An inner plate provided with an opening corresponding to a hole of the outer plate in a concave portion that is molded in an uneven shape with respect to the outer plate and is fixed to the inner surface of the outer plate;
An internal reinforcing frame disposed in a space in a series of convex portions provided around the opening of the inner plate.
外側板と内側板の凸部との間の空間に充填された発泡材を備え、
内部補強枠体は、この発泡材により固定された
ことを特徴とする請求項1記載のドアパネル。
With a foam material filled in the space between the outer plate and the convex portion of the inner plate,
The door panel according to claim 1, wherein the internal reinforcing frame is fixed by the foam material.
内側板の凸部と外側板との間に位置決めされて固定されたヒンジ取付用の内部補強板を備え、
内部補強枠体は、この内部補強板に接着剤で接合された
ことを特徴とする請求項1または2記載のドアパネル。
An internal reinforcing plate for hinge attachment that is positioned and fixed between the convex portion of the inner plate and the outer plate;
The door panel according to claim 1 or 2, wherein the internal reinforcing frame is joined to the internal reinforcing plate with an adhesive.
JP2007254458A 2007-09-28 2007-09-28 Door panel Withdrawn JP2009084844A (en)

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Country Link
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