JPH0356410Y2 - - Google Patents
Info
- Publication number
- JPH0356410Y2 JPH0356410Y2 JP7197485U JP7197485U JPH0356410Y2 JP H0356410 Y2 JPH0356410 Y2 JP H0356410Y2 JP 7197485 U JP7197485 U JP 7197485U JP 7197485 U JP7197485 U JP 7197485U JP H0356410 Y2 JPH0356410 Y2 JP H0356410Y2
- Authority
- JP
- Japan
- Prior art keywords
- back door
- upper edge
- air vent
- vent hole
- 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.)
- Expired
Links
- 239000003566 sealing material Substances 0.000 claims description 6
- 238000009957 hemming Methods 0.000 claims description 5
- 238000004070 electrodeposition Methods 0.000 description 13
- 238000000576 coating method Methods 0.000 description 10
- 239000011248 coating agent Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000003973 paint Substances 0.000 description 6
- 238000010422 painting Methods 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 230000002265 prevention Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Air-Conditioning For Vehicles (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は、自動車のバツクドアの上部構造に
関し、特に電着塗装に適するようにした改良に関
する。[Detailed Description of the Invention] Industrial Application Field This invention relates to the upper structure of an automobile back door, and particularly relates to an improvement to make it suitable for electrodeposition coating.
従来の技術
自動車の塗装は、下塗工程、中塗工程さらに上
塗工程など複数回行われるが、防錆を主目的とし
た下塗工程においては、一般に水溶性塗料を満た
した電着タンク内に、ドア等を取り付けた車体を
浸漬して電着塗装を行い、外表面の他、ビラー内
部やドア内部をも同時に塗装するようにしてい
る。従つて、電着タンクに浸漬した際にビラー内
部やドア内部に空気が残留していると塗装不良を
生じる虞れがある。Conventional Technology Automobile painting is performed multiple times, including an undercoating process, an intermediate coating process, and a topcoating process.In the undercoating process, whose main purpose is rust prevention, doors, etc. are generally placed in an electrodeposition tank filled with water-soluble paint. The body of the vehicle with the attached is immersed in an electrodeposition coating, and in addition to the exterior surface, the interior of the biller and doors are also painted at the same time. Therefore, if air remains inside the biller or door when immersed in the electrodeposition tank, there is a risk of paint defects.
ここで第4図に示すような自動車のバツクドア
1にあつては、第5図に示すように車室側上部
に、複数のヒンジ取付孔2や、ハーネスもしくは
ウオツシヤチユーブ等のハーネス類挿入孔3が開
口しているので、電着塗装時には、これらを通し
て空気が排出されることになる。第6図は、上記
ヒンジ取付孔2に沿つたバツクドア1上部の具体
的な断面を示しており、アウタパネル4上端縁4
aがインナパネル5上端縁5aを包むように折り
返されてヘミング加工され、両パネル4,5が一
体化されている。尚、6はレインフオースであ
る。また、電着塗装を行つた後、中塗工程の前
に、アウタパネル4の折り返し部7の先端7aに
沿つて合成樹脂材料などからなるシーリング材8
が付着処理され、ヘミング部分における一層確実
な防錆を図つている。(例えば日産自動車(株)
昭和55年9月発行の「キヤラバン・ホーミー整備
要領書」参照)
考案が解決しようとする問題点
しかし、上記のようなバツクドア1の上部構造
においては、第6図に明らかなように、ヒンジ取
付孔2等が厳密にはバツクドア1の最上部に位置
する訳ではないので、これより上部では両パネル
4,5間の空間9内に空気が残留してしまい、ヘ
ミング部分の近傍まで十分に塗料が行きわたらな
いことがある。この結果、バツクドア1上部で内
部から早期に発錆を生じる虞れがあつた。 Here, in the case of an automobile back door 1 as shown in Fig. 4, there are a plurality of hinge mounting holes 2 and insertion of a harness such as a harness or a wash tube in the upper part of the passenger compartment side as shown in Fig. 5. Since the holes 3 are open, air will be exhausted through these during electrodeposition coating. FIG. 6 shows a specific cross section of the upper part of the back door 1 along the hinge mounting hole 2, and shows the upper edge 4 of the outer panel 4.
a is folded back and hemmed so as to wrap around the upper edge 5a of the inner panel 5, and both panels 4 and 5 are integrated. In addition, 6 is rain force. Furthermore, after the electrodeposition coating is performed and before the intermediate coating process, a sealing material 8 made of a synthetic resin material or the like is applied along the tip 7a of the folded portion 7 of the outer panel 4.
is applied to ensure even more reliable rust prevention at the hemming area. (For example, Nissan Motor Co., Ltd.)
(See "Caravan Homey Maintenance Manual" published in September 1981) Problems that the invention aims to solve However, in the upper structure of the back door 1 as described above, as is clear from Fig. 6, the hinge mounting Strictly speaking, the holes 2, etc. are not located at the top of the backdoor 1, so air remains in the space 9 between both panels 4 and 5 above this point, and the paint does not reach the hemming area. may not be widely available. As a result, there was a risk that rust would develop early from inside the upper part of the back door 1.
尚、スライドドアなどにあつては、上端面に空
気抜き用の小孔を予め形成し、塗装後に別体のプ
ラグにて閉塞するようにしたものもあるが、バツ
クドア1上部のように上面が車外に露出するもの
では上記ヒンジ取付孔2等と同様に車室内側の比
較的低い位置に形成せざるを得ず、従つてそれ程
の効果がないとともに、別体のプラグを装着する
ために部品点数および工数が増加するという不具
合がある。 In addition, some sliding doors have a small hole for air vent formed in the upper end surface in advance, which is closed with a separate plug after painting, but the upper surface is outside the vehicle, as in the case of the upper part of back door 1. If it is exposed to the air, it must be formed at a relatively low position on the inside of the vehicle like the hinge mounting hole 2, etc., and therefore it is not as effective, and the number of parts is required to mount a separate plug. There is also a problem that the number of man-hours increases.
問題点を解決するための手段
この考案は上記の問題点を解決するために、ア
ウタパネル上端縁を、インナパネル上端縁を包む
ように折り返してヘミング加工し、両パネルを一
体化してなるバツクドアの上部構造において、上
記アウタパネル折り返し部の先端と接するインナ
パネルの上端縁近傍位置に、両パネル間の空間と
連通する空気抜き孔を開口形成するとともに、上
記折り返し部の先端に沿つて付着されたシーリン
グ材によつて上記空気抜き孔を閉塞したことを特
徴とする。Means for Solving the Problems In order to solve the above-mentioned problems, this invention has a back door upper structure in which the upper edge of the outer panel is folded back and hemmed to wrap around the upper edge of the inner panel, and both panels are integrated. An air vent hole communicating with the space between both panels is formed near the upper edge of the inner panel in contact with the tip of the folded portion of the outer panel, and a sealing material is attached along the tip of the folded portion of the outer panel. The air vent hole is then closed.
作 用
上記シーリング材は電着塗装の後に付着される
ものであり、電着塗装の際には空気抜き孔が外部
に開口している。従つて、電着タンクに浸漬した
場合にバツクドア内部から速やかに空気が排出さ
れ、塗料の付着を阻害することがない。特に、上
記空気抜き孔がヘミング部分の近傍つまり袋状に
なつた空間の最も上部に位置するので、空気を内
部から完全に除去でき、塗装が十分に行きわたる
ことになる。Function The above sealing material is applied after electrocoating, and air vent holes are opened to the outside during electrocoating. Therefore, when immersed in an electrodeposition tank, air is quickly discharged from the inside of the back door, and the adhesion of paint is not inhibited. In particular, since the air vent hole is located near the hemming portion, that is, at the top of the bag-shaped space, air can be completely removed from the inside, and the coating will be applied sufficiently.
また、上記空気抜き孔は、アウタパネルの折り
返し部先端に沿つて一般に行われるシーリング材
の付着処理によつて、同時に閉塞されてしまう。 Further, the air vent hole is simultaneously blocked by the process of attaching a sealant that is generally performed along the tip of the folded portion of the outer panel.
実施例
第1図はこの考案に係るバツクドアの上部構造
の一実施例を示す断面図であつて、バツクドア1
の最も高位置となる中央部近傍つまり第5図の
−線に沿つた断面を示している。Embodiment FIG. 1 is a sectional view showing an embodiment of the upper structure of a back door according to this invention.
5 shows a cross section near the center, which is the highest position, that is, along the - line in FIG.
このバツクドア1は、従来のものと同じくアウ
タパネル4上端縁4aがインナパネル5上端縁5
aを包むように折り返されてヘミング加工され、
両パネル4,5が一体となつている。そして、ア
ウタパネル4の折り返し部7の先端7aと接する
インナパネル5上端縁近傍位置に、第2図に示す
ような空気抜き孔10が開口形成されており、両
パネル4,5間の空間9と連通している。この空
気抜き孔10は、バツクドア1の中央部に2箇所
のみ設けても十分な効果があるが、望ましくはそ
の近傍に複数箇所設けると良い。尚、第3図に示
すように、インナパネル5を上端から切欠いて空
気抜き孔10を形成するようにしても良い。 In this back door 1, the upper edge 4a of the outer panel 4 is the upper edge 5 of the inner panel 5, as in the conventional one.
It is folded back and hemmed to wrap around a.
Both panels 4 and 5 are integrated. An air vent hole 10 as shown in FIG. 2 is formed near the upper edge of the inner panel 5 in contact with the tip 7a of the folded portion 7 of the outer panel 4, and communicates with the space 9 between the panels 4 and 5. are doing. Even if the air vent hole 10 is provided at only two locations in the center of the back door 1, a sufficient effect can be obtained, but it is preferable to provide the air vent hole 10 at a plurality of locations in the vicinity thereof. Incidentally, as shown in FIG. 3, the air vent hole 10 may be formed by cutting out the inner panel 5 from the upper end.
従つて、電着タンク内に車体を浸漬して行う下
塗工程での電着塗装の際に、両パネル4,5間の
空気が上記空気抜き孔10を介して確実に排出さ
れ、空気泡の残留による塗装不良が防止される。 Therefore, during electrodeposition painting in the undercoating process performed by dipping the car body in an electrodeposition tank, the air between both panels 4 and 5 is reliably discharged through the air vent hole 10, and no air bubbles remain. This prevents paint defects due to
一方、上記折り返し部7においては、電着塗装
を行つた後、中塗工程の前に、前述したように折
り返し部7先端に沿つてシーリング材8の付着処
理が行われるが、上記空気抜き孔10部分にシー
リング材8が多く付与され、このシーリング材8
によつて空気抜き孔10が同時に閉塞されてい
る。 On the other hand, in the folded part 7, after the electrodeposition coating is performed and before the intermediate coating process, the sealing material 8 is applied along the tip of the folded part 7 as described above. A large amount of sealant 8 is applied to the sealant 8.
At the same time, the air vent hole 10 is closed.
従つて、完成状態ではバツクドア1内の空間9
は密閉され、上記空気抜き孔10を通した雨水等
の侵入が防止される。そして、上記のようにヘミ
ング部分の防錆のために必要なシーリング材8に
よつて同時に空気抜き孔10が閉塞されるので、
プラグ等の別部材が不要なのは勿論のこと、実質
的な工数の増加が全く生じない。 Therefore, in the completed state, the space 9 inside the back door 1
is sealed to prevent rainwater and the like from entering through the air vent hole 10. At the same time, the air vent hole 10 is closed by the sealant 8 necessary for rust prevention of the hemming part as described above.
Of course, there is no need for a separate member such as a plug, and there is no substantial increase in the number of man-hours.
考案の効果
以上の説明で明らかなように、この考案に係る
バツクドアの上部構造によれば、下塗工程での電
着塗装の際に、バツクドア内部の上方の隅まで十
分に塗料を行きわたらせて確実な塗装を行うこと
ができ、塗装不良による発錆を防止できる。ま
た、それを閉塞するのに別部材や新たな工程が不
要であり、かつ外観を損うようなこともない。Effects of the invention As is clear from the above explanation, the upper structure of the back door according to this invention allows the paint to be sufficiently distributed to the upper corners of the inside of the back door during electrodeposition coating in the undercoating process. This allows for accurate painting and prevents rusting due to poor painting. Moreover, no separate member or new process is required to close it, and the appearance will not be impaired.
第1図はこの考案の一実施例を示すもので、第
5図の−線に沿つた断面図、第2図はそのイ
ンナパネル要部の斜視図、第3図は空気抜き孔の
異なる実施例を示す斜視図、第4図はバツクドア
を備えた自動車の斜視図、第5図はバツクドアの
背面図、第6図は従来のバツクドア上部構造を示
す第5図の−線に沿つた断面図である。
1……バツクドア、4……アウタパネル、5…
…インナパネル、7……折り返し部、8……シー
リング材、9……空間、10……空気抜き孔。
Fig. 1 shows an embodiment of this invention; Fig. 5 is a sectional view taken along the - line, Fig. 2 is a perspective view of the main part of the inner panel, and Fig. 3 is a different embodiment of the air vent hole. 4 is a perspective view of an automobile equipped with a back door, FIG. 5 is a rear view of the back door, and FIG. 6 is a sectional view taken along the line - in FIG. 5 showing the conventional back door upper structure. be. 1...back door, 4...outer panel, 5...
...Inner panel, 7...Folded portion, 8...Sealing material, 9...Space, 10...Air vent hole.
Claims (1)
包むように折り返してヘミング加工し、両パネル
を一体化してなるバツクドアの上部構造におい
て、上記アウタパネル折り返し部の先端と接する
インナパネルの上端縁近傍位置に、両パネル間の
空間と連通する空気抜き孔を開口形成するととも
に、上記折り返し部の先端に沿つて付着されたシ
ーリング材によつて上記空気抜き孔を閉塞したこ
とを特徴とするバツクドアの上部構造。 In the upper structure of the back door which is formed by folding the upper edge of the outer panel so as to wrap around the upper edge of the inner panel and hemming the upper edge of the inner panel and integrating both panels, both panels are placed near the upper edge of the inner panel where the upper edge of the inner panel is in contact with the tip of the folded part of the outer panel. 1. An upper structure for a back door, characterized in that an air vent hole communicating with the space between the back doors is formed, and the air vent hole is closed by a sealing material attached along the tip of the folded portion.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7197485U JPH0356410Y2 (en) | 1985-05-15 | 1985-05-15 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7197485U JPH0356410Y2 (en) | 1985-05-15 | 1985-05-15 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS61186622U JPS61186622U (en) | 1986-11-20 |
JPH0356410Y2 true JPH0356410Y2 (en) | 1991-12-18 |
Family
ID=30609953
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7197485U Expired JPH0356410Y2 (en) | 1985-05-15 | 1985-05-15 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0356410Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0511696Y2 (en) * | 1987-04-06 | 1993-03-24 |
-
1985
- 1985-05-15 JP JP7197485U patent/JPH0356410Y2/ja not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61186622U (en) | 1986-11-20 |
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