JPH06171369A - Rear door fitting structure - Google Patents

Rear door fitting structure

Info

Publication number
JPH06171369A
JPH06171369A JP35037092A JP35037092A JPH06171369A JP H06171369 A JPH06171369 A JP H06171369A JP 35037092 A JP35037092 A JP 35037092A JP 35037092 A JP35037092 A JP 35037092A JP H06171369 A JPH06171369 A JP H06171369A
Authority
JP
Japan
Prior art keywords
back door
rear door
hinge
reinforcing plate
inner panel
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.)
Pending
Application number
JP35037092A
Other languages
Japanese (ja)
Inventor
Yoshiyuki Aoki
良幸 青木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Suzuki Motor Corp
Original Assignee
Suzuki Motor Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Suzuki Motor Corp filed Critical Suzuki Motor Corp
Priority to JP35037092A priority Critical patent/JPH06171369A/en
Publication of JPH06171369A publication Critical patent/JPH06171369A/en
Pending legal-status Critical Current

Links

Landscapes

  • Body Structure For Vehicles (AREA)

Abstract

PURPOSE:To provide rear door fitting structure simplifying the structure of a rear door and maintaining rigidity around a hinge. CONSTITUTION:The upper part of a rear door 2 disposed at the rear part of a body is fitted to a hinge 3 fitted to a roof panel 12. A reinforcing plate 8 is provided in an inner part partitioned by an inner panel 7 and an outer panel 6 forming the rear door 2. The reinforcing plate 8 is connected to the hinge fitting part 5 of the rear door 2, and extended to be pressure-connected to a hem part 14 provided at the upper end of the rear door 2 so as to joint the inner panel 7 and outer panel 6 to each other. The inner panel 7 and the reinforcing plate 8 are integrated into one between the hinge fitting part 5 and the hem part 14, and stress generated in association with the opening/closing of the rear door 2 is dispersed between the hinge fitting part 5 and the hem part 14. This results to reduce the number of part items, the cost and the assembling manhours of the rear door and to lighten the weight.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、自動車の後部をその上
部に配置したヒンジを介して開放するバックドアの取付
構造に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a back door mounting structure in which a rear portion of an automobile is opened through a hinge arranged above the automobile.

【0002】[0002]

【従来の技術】一般に自動車の荷物用スペースはその後
部に設けられ、荷物はトランクや荷台に載置される。ま
た、後方から出し入れができるようにトランクのドアや
バックドアが取付けられている。例えば、図3に示す自
動車1は後部が開放されるようにバックドア2が取付け
られている。バックドア2の開閉方向は、上部に配置し
たヒンジ3を介して上方に回動するようになっている。
また、バックドア2の中間部と車体側との間を連結する
バランサー4が取付けられている。バランサー4にはバ
ックドア2の開時、バックドア2が下がらないように、
ガスが封入されている。なお、バックドア2の開閉時に
車内の空気が移動することで不快感を与えないように空
気抜きの孔を形成するようにしたものがある(実公昭60
-981号公報参照)。
2. Description of the Related Art Generally, an automobile luggage space is provided at a rear portion of the automobile, and the luggage is placed on a trunk or a luggage carrier. In addition, a trunk door and a back door are installed so that they can be taken in and out from the rear. For example, the automobile 1 shown in FIG. 3 has a back door 2 attached so that the rear portion is opened. The opening and closing direction of the back door 2 is adapted to rotate upward through the hinge 3 arranged at the upper part.
Further, a balancer 4 that connects the intermediate portion of the back door 2 and the vehicle body side is attached. In order to prevent the back door 2 from lowering when the back door 2 is opened on the balancer 4,
Gas is enclosed. In addition, there is one in which an air vent hole is formed so as not to give discomfort when the air inside the vehicle moves when the back door 2 is opened and closed.
-981 publication).

【0003】バックドア2をこのように取付けたもので
は、バックドア2のヒンジ取付部5にバランサー4の反
力が働くので、取付部5の強度を強くしている。すなわ
ち、バランサー4の反力F2 の、バックドア2とバラン
サー4とが接続している箇所の上下方向分力Fv は、 Fv =F2 ・cosθ であり、バックドア2を閉める荷重F1 は、 F1 =(L2 /L1 )・F2 ・cosθ 但し、L1 :ヒンジ3からバランサー取付位置までの距
離 L2 :ヒンジ3からバックドア端部までの距離 θ :バランサー4と垂直軸のなす角度 である。また、バックドア4のヒンジ取付部5にかかる
反力F0 は、 F0 =((L1 −L2 )/L2 )・F1 =((L1 −L2 )/L1 )・F2 ・cosθ である。ここで、L1 =2・L2 とすると、 F0 /F1 =L1 /L2 −1=1 となる。
In the case where the back door 2 is mounted in this way, the reaction force of the balancer 4 acts on the hinge mounting portion 5 of the back door 2, so that the strength of the mounting portion 5 is increased. That is, the vertical component force F v of the reaction force F 2 of the balancer 4 at the location where the back door 2 and the balancer 4 are connected is F v = F 2 · cos θ, and the load F for closing the back door 2 1 is F 1 = (L 2 / L 1 ) · F 2 · cos θ where L 1 is the distance from the hinge 3 to the balancer mounting position L 2 is the distance from the hinge 3 to the back door end θ: The balancer 4 The angle formed by the vertical axis. The reaction force F 0 applied to the hinge mounting portion 5 of the back door 4 is F 0 = ((L 1 −L 2 ) / L 2 ) · F 1 = ((L 1 −L 2 ) / L 1 ) · F 2 · cos θ. Here, if L 1 = 2 · L 2 , then F 0 / F 1 = L 1 / L 2 −1 = 1.

【0004】通常、L1 >2・L2 なので、バックドア
2のヒンジ取付部5にはバックドア2を閉める荷重F1
より大きな力がかかる。このため、十分な強度を得るよ
うに、図4に示すように、バックドア2を構成するアウ
タパネル6とインナパネル7とで画成した内部に、イン
ナパネル7に沿った補強板8とさらにこの上からねじの
締付け部を二重にした補強板9とを設けている。ヒンジ
取付部5にはねじ孔を有し、ヒンジ3、インナパネル7
および補強板8,9を貫通したボルト10がプロジェクシ
ョンナット11に螺着し、ヒンジ3を介してバックドア2
がルーフパネル12と結合している。なお、ルーフパネル
12の裏側にはルーフインナパネル13が設けられている。
Usually, since L 1 > 2 · L 2 , a load F 1 for closing the back door 2 is attached to the hinge mounting portion 5 of the back door 2.
It takes more power. Therefore, in order to obtain sufficient strength, as shown in FIG. 4, a reinforcing plate 8 along the inner panel 7 and the reinforcing plate 8 along the inner panel 7 are further provided inside the outer panel 6 and the inner panel 7 which form the back door 2. A reinforcing plate 9 having double screw tightening portions is provided from above. The hinge mounting portion 5 has a screw hole, and the hinge 3 and the inner panel 7 are provided.
Also, a bolt 10 penetrating the reinforcing plates 8 and 9 is screwed onto the projection nut 11, and the back door 2 is attached via the hinge 3.
Is connected to the roof panel 12. The roof panel
A roof inner panel 13 is provided on the back side of 12.

【0005】また、図5に示すように、アウタパネル6
の端部を折返してインナパネル7の端部を挿入圧着した
ヘム部14を有し、取付部の周囲にはインナパネル7と二
重にした補強板8,9とをスポット溶接(スポット箇所
a)で固定している。補強板8,9による剛性が弱い場
合には、図6の点線部分に対して、実線で示すように補
強板8,9がスポット溶接の上部から反り、この箇所に
応力集中が起きる。したがって、この箇所では補強板
8,9を二重にして十分厚みを持たせて剛性を高めてい
る。
Further, as shown in FIG. 5, the outer panel 6
The end portion of the inner panel 7 is folded back and the end portion of the inner panel 7 is inserted and crimped, and the inner panel 7 and the double reinforcing plates 8 and 9 are spot-welded (spot location a) around the mounting portion. ) Is fixed. When the rigidity of the reinforcing plates 8 and 9 is weak, the reinforcing plates 8 and 9 warp from the upper portion of the spot welding as shown by the solid line with respect to the dotted line portion in FIG. 6, and stress concentration occurs at this portion. Therefore, at this location, the reinforcing plates 8 and 9 are doubled to have a sufficient thickness to enhance rigidity.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、補強板
8,9を大きくすると重量が増え、また、スポット溶接
の箇所aが増えるので、補強板8,9の取扱いが煩わし
く作業工程が多くなることになる。また、厚みを増すた
めに枚数を重ねるので部品が多くなり、コストも高くな
る。
However, when the reinforcing plates 8 and 9 are increased in size, the weight is increased and the spots a for spot welding are increased, so that the handling of the reinforcing plates 8 and 9 is complicated and the number of working steps is increased. Become. Moreover, since the number of sheets is increased to increase the thickness, the number of parts is increased and the cost is increased.

【0007】本発明は、バックドアの構造を簡素にする
と共にヒンジ周辺の剛性を維持するようにしたバックド
アの取付構造を提供することを目的とする。
It is an object of the present invention to provide a back door mounting structure that simplifies the structure of the back door and maintains the rigidity around the hinge.

【0008】[0008]

【課題を解決するための手段】本発明は上記目的を達成
するために、車体後部に配置したバックドアの上部を、
ルーフの端部に取付けたヒンジに取付け、前記バックド
アを構成するインナパネルおよびアウタパネルで画成し
た内部に補強板を設けると共に、該補強板を前記バック
ドアのヒンジ取付部に結合し、バックドアの上端のイン
ナパネル、アウタパネルを接合するヘム部に前記補強板
を延設し共に圧着したことを特徴とする。
SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides an upper part of a back door arranged at the rear part of a vehicle body,
The back door is attached to a hinge attached to the end of the roof, and a reinforcing plate is provided inside the inner panel and the outer panel that form the back door, and the reinforcing plate is connected to the hinge attaching portion of the back door. The reinforcing plate is extended and crimped together at a hem portion that joins the inner panel and the outer panel at the upper end.

【0009】[0009]

【作用】本発明は上記のように構成したものであるの
で、ヒンジ取付部とヘム部との間はインナパネルと補強
板が一体にされ、バックドアの開閉に伴う応力はヒンジ
取付部とヘム部との間で分散される。
Since the present invention is configured as described above, the inner panel and the reinforcing plate are integrated between the hinge mounting portion and the hem portion, and the stress associated with the opening and closing of the back door is reduced by the hinge mounting portion and the hem. Distributed between departments.

【0010】[0010]

【実施例】以下、本発明の実施例を添付図面に基づいて
説明する。図1に示すように、自動車後部に設けたバッ
クドア2の上部はヒンジ3を介してルーフの端部(ルー
フパネル12)に取付けられている。ヒンジ3にはバック
ドア2のインナパネル7が補強板8と共にボルト10、プ
ロジェクションナット11で締付けられている。補強板8
はこのヒンジ取付部5の位置からさらに上方に延出しヘ
ム部14に到達している。この場合、反力はヒンジ取付部
5の上方延長上にかかるので補強板8の両側を切り欠い
ても良い(図2参照)。
Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1, the upper portion of a back door 2 provided at the rear portion of the automobile is attached to an end portion (roof panel 12) of the roof via a hinge 3. An inner panel 7 of the back door 2 is fastened to the hinge 3 together with a reinforcing plate 8 with bolts 10 and projection nuts 11. Reinforcing plate 8
Extends further upward from the position of the hinge mounting portion 5 and reaches the hem portion 14. In this case, since the reaction force is applied to the upward extension of the hinge mounting portion 5, both sides of the reinforcing plate 8 may be cut out (see FIG. 2).

【0011】ヘム部14ではインナパネル7と補強板8と
の端部を揃え、アウタパネル6をこの端部を被うように
折返し、全体を接合している。
In the hem portion 14, the inner panel 7 and the reinforcing plate 8 are aligned at their ends, and the outer panel 6 is folded back so as to cover the ends, and the whole is joined.

【0012】したがって、インナパネル7はヒンジ取付
部5とヘム部14との間で補強板8と一体になり、従来ス
ポット部aの上部にかかっていた応力をヘム部14とヒン
ジ取付部5との間に分散させたことになる。これにより
反力がかかるとインナパネル7と補強板8は一体に変形
するようになり、全体の強度が良くなる。なお、ヒンジ
取付部5の剛性はその分柔らかくされている。
Therefore, the inner panel 7 is integrated with the reinforcing plate 8 between the hinge mounting portion 5 and the hem portion 14, and the stress applied to the upper portion of the spot portion a in the related art is applied to the hem portion 14 and the hinge mounting portion 5. It will be dispersed in between. As a result, when a reaction force is applied, the inner panel 7 and the reinforcing plate 8 are integrally deformed, and the overall strength is improved. The rigidity of the hinge mounting portion 5 is softened accordingly.

【0013】このように、バックドア2に補強板8を要
所に延ばして取付けることによって、剛性を滑らかに強
くすることができるので応力集中を防止することがで
き、また、補強板8を大きく厚くする必要がないのでバ
ックドア2を軽量にすることができる。
As described above, since the reinforcing plate 8 is attached to the back door 2 by extending it to a desired position, the rigidity can be smoothly increased, so that stress concentration can be prevented and the reinforcing plate 8 can be enlarged. Since it is not necessary to make it thick, the back door 2 can be made light.

【0014】[0014]

【発明の効果】本発明は、以上のように構成したもので
あるから、バックドアの開閉に伴う応力はヒンジ取付部
とヘム部との間で分散され、補強板はその分板厚を薄く
でき、また、補強板の枚数も減らすことができる。これ
によって、部品点数の減少、コストの低減を図ることが
でき、バックドアの組付けの工数減少、および軽量化を
図ることができる。
Since the present invention is constructed as described above, the stress due to the opening and closing of the back door is dispersed between the hinge mounting portion and the hem portion, and the reinforcing plate has a reduced thickness. In addition, the number of reinforcing plates can be reduced. As a result, it is possible to reduce the number of parts and costs, reduce the number of steps for assembling the back door, and reduce the weight.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明による実施例の自動車のバックドアの要
部側断面図である。
FIG. 1 is a side sectional view of an essential part of a back door of an automobile according to an embodiment of the present invention.

【図2】図1に示すバックドアの要部の斜視図である。FIG. 2 is a perspective view of a main part of the back door shown in FIG.

【図3】従来の自動車の後部の構成を示す説明図であ
る。
FIG. 3 is an explanatory diagram showing a configuration of a rear portion of a conventional automobile.

【図4】従来の自動車のバックドアの要部側断面図であ
る。
FIG. 4 is a side sectional view of a main part of a conventional automobile back door.

【図5】図4に示すバックドアの要部の斜視図である。5 is a perspective view of a main part of the back door shown in FIG.

【図6】図4に示すバックドアの要部の側断面図であ
る。
FIG. 6 is a side sectional view of a main part of the back door shown in FIG.

【符号の説明】[Explanation of symbols]

2 バックドア 3 ヒンジ 5 ヒンジ取付部 6 アウタパネル 7 インナパネル 8 補強板 12 ルーフ 14 ヘム部 2 Back door 3 Hinge 5 Hinge mounting part 6 Outer panel 7 Inner panel 8 Reinforcing plate 12 Roof 14 Hem part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 車体後部に配置したバックドアの上部
を、ルーフの端部に取付けたヒンジに取付け、前記バッ
クドアを構成するインナパネルおよびアウタパネルで画
成した内部に補強板を設けると共に、該補強板を前記バ
ックドアのヒンジ取付部に結合し、バックドアの上端の
インナパネル、アウタパネルを接合するヘム部に前記補
強板を延設し共に圧着したことを特徴とするバックドア
の取付構造。
1. An upper part of a back door arranged at a rear part of a vehicle body is attached to a hinge attached to an end part of a roof, and a reinforcing plate is provided inside an inner panel and an outer panel which constitute the back door. A back door mounting structure, wherein a reinforcing plate is coupled to a hinge mounting portion of the back door, and the reinforcing plate is extended and crimped together at a hem portion for joining an inner panel and an outer panel at an upper end of the back door.
JP35037092A 1992-12-03 1992-12-03 Rear door fitting structure Pending JPH06171369A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP35037092A JPH06171369A (en) 1992-12-03 1992-12-03 Rear door fitting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP35037092A JPH06171369A (en) 1992-12-03 1992-12-03 Rear door fitting structure

Publications (1)

Publication Number Publication Date
JPH06171369A true JPH06171369A (en) 1994-06-21

Family

ID=18410030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP35037092A Pending JPH06171369A (en) 1992-12-03 1992-12-03 Rear door fitting structure

Country Status (1)

Country Link
JP (1) JPH06171369A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010179704A (en) * 2009-02-03 2010-08-19 Mazda Motor Corp Seat belt device for vehicle
US20150008697A1 (en) * 2013-07-03 2015-01-08 Honda Motor Co., Ltd. Vehicle door
CN112590512A (en) * 2020-12-30 2021-04-02 上汽通用五菱汽车股份有限公司 Plastic tail door reinforced connection structure and tail door comprising same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010179704A (en) * 2009-02-03 2010-08-19 Mazda Motor Corp Seat belt device for vehicle
US20150008697A1 (en) * 2013-07-03 2015-01-08 Honda Motor Co., Ltd. Vehicle door
US9180815B2 (en) * 2013-07-03 2015-11-10 Honda Motor Co., Ltd. Vehicle door
CN112590512A (en) * 2020-12-30 2021-04-02 上汽通用五菱汽车股份有限公司 Plastic tail door reinforced connection structure and tail door comprising same
CN112590512B (en) * 2020-12-30 2024-05-28 上汽通用五菱汽车股份有限公司 Plastic tail door reinforcing connection structure and tail door comprising same

Similar Documents

Publication Publication Date Title
JPH0336691B2 (en)
US5906073A (en) Automotive door structure
JP2820951B2 (en) Rear body structure of vehicle
JPS5824288B2 (en) Body roof structure of vehicles equipped with sliding grooves and its assembly method
JPH11321706A (en) Car body rear part structure
JPH06171369A (en) Rear door fitting structure
JPH11180346A (en) Rear body structure of automobile
JP3305225B2 (en) Reinforcement structure for the back door opening of automobiles
JPH06312670A (en) Fitting structure for front hood striker of automobile
JP2003226263A (en) Open stay attaching structure of vehicle
JPH0631011B2 (en) Car lid structure
JP3432383B2 (en) Backdoor reinforcement structure
JP2542531Y2 (en) Car suspension tower structure
JPH0481322A (en) Door of automobile
JPH08164826A (en) Vehicular rear wiper motor fitting structure
JP2515087Y2 (en) Rear body structure of automobile
JP2581361Y2 (en) Center pillar joint structure of automobile
JP3463458B2 (en) Trunk lid hinge mounting part structure for rear parcel panel
JPS6347177Y2 (en)
JPH09202143A (en) Roof reinforcement structure of automobile having sunroof
WO2023047909A1 (en) Body side lower structure for vehicle
JP3274079B2 (en) Side-opening back door support structure
JP2535962Y2 (en) Mounting structure of door lock striker
JPH08198141A (en) Rear structure of car
JPS62261526A (en) Pillar hinge setting part structure for automobile