JPS60146636A - Rust prevention method for car body parts - Google Patents

Rust prevention method for car body parts

Info

Publication number
JPS60146636A
JPS60146636A JP170884A JP170884A JPS60146636A JP S60146636 A JPS60146636 A JP S60146636A JP 170884 A JP170884 A JP 170884A JP 170884 A JP170884 A JP 170884A JP S60146636 A JPS60146636 A JP S60146636A
Authority
JP
Japan
Prior art keywords
panel
panel material
door
end part
panels
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
JP170884A
Other languages
Japanese (ja)
Inventor
Toshio Niihara
新原 敏雄
Kazunori Matsumoto
松本 和勝
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor Co Ltd
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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP170884A priority Critical patent/JPS60146636A/en
Publication of JPS60146636A publication Critical patent/JPS60146636A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60JWINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00Doors
    • B60J5/04Doors arranged at the vehicle sides
    • B60J5/0468Fixation or mounting means specific for door components
    • B60J5/0469Fixation or mounting means specific for door components for door panels, e.g. hemming

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Abstract

PURPOSE:To improve rust-prevention performance of such as doors and hoods which are obtained by bending an end part of a panel through hemming processing by bending the first panel end part to the second panel surface side after electrodepositing on a first panel member, and integrating both panels. CONSTITUTION:A door outer panel P1 and an inner panel P2 are respectively electrodeposited to form an electrodeposited coating film Q. One of them is put upon the other, and end part E of the panel P1 is bent to the surface side of the panel P2, allowing both panels P1 and P2 to be integrally formed. Further, before bending the end part E of the pallet P1, an adhesive is applied on a portion where both panels P1 and P2 make contact with each other. The applied film such as electrodeposition, etc., of a door thus formed is maintained not only upon drawing processing but also a mating face between the first and second panel materials, and secure rust-prevention thereof can be accomplished without use of a surface processed steel plate as a panel raw material.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は自動車車体のドア、フード、トランクリッド等
のように、パネル素材の端部をヘミング加工により折り
曲げることにより形成される自動車車体部品の防錆方法
に関する。
Detailed Description of the Invention (Industrial Field of Application) The present invention is applicable to automobile body parts, such as doors, hoods, trunk lids, etc., which are formed by bending the ends of panel materials by hemming. Concerning rust prevention methods.

(先行技術) 第1図<A)(B)は自動車車体部品の一例として、ド
アを示ず図であり、ドアDは通常アウターパネルP1と
インナーパネルP2とを合わせることにより形成されて
いる。このようなドアDを製造するには、アウターパネ
ルP1とインナーパネルP2をそれぞれプレスにより所
定の形状に成形した後、アウターパネルP1の端部E4
折り曲げてこの部分によってインナーパネル1〕2を挾
み込むことにより、アウターパネルP1とインナーパネ
ルP2との一体化を図っている。次いで、ドアDを化成
処理等の前処理を施した後、電着tJ!装、静電塗装等
の各種塗装1徨を経て製品化される。
(Prior Art) FIGS. 1A and 1B are diagrams showing an example of an automobile body part without showing a door, and the door D is usually formed by combining an outer panel P1 and an inner panel P2. In order to manufacture such a door D, after forming the outer panel P1 and the inner panel P2 into predetermined shapes by pressing, the end portion E4 of the outer panel P1 is formed.
The outer panel P1 and the inner panel P2 are integrated by bending and sandwiching the inner panel 1]2 between these parts. Next, after performing pretreatment such as chemical conversion treatment on door D, electrodeposition tJ! The product is made into a product after going through various types of coatings such as coating and electrostatic coating.

ドアに対する防錆はドアパネルの表面に塗装塗膜によっ
てなされる。
Rust prevention for doors is achieved by applying a paint film to the surface of the door panel.

ところが、アウターパネル1)1 とインナーパネルP
2とにより形成される狭よい袋状部内及びインナーパネ
ルとアウターパネルの合わせ目には、II着塗装時に塗
料が充分浸透しにくい場合があった。そこで、第1図(
B)に承りようにパネル素材の一方の面に予め防錆処理
を施し処理面Sを有する表面処理鋼板を用いる試みがな
されている。
However, the outer panel 1) 1 and the inner panel P
In some cases, it was difficult for the paint to penetrate sufficiently into the narrow bag-shaped portion formed by II and the seam between the inner panel and the outer panel during II coating. Therefore, Figure 1 (
As in B), an attempt has been made to use a surface-treated steel sheet having a treated surface S in which one surface of the panel material is previously subjected to anti-rust treatment.

しかしながら、表面処′fJf!鋼板をパネル素材とし
てこれのプレス成形を行なうと、層状ないし膜状の防錆
処理面が削り落とされるおそれがあるのみでなく、鋼板
自体が高価であり、プレス成形性が悪い土に、削り落さ
れた処理面の粉末がプレス型や別のパネル素材に(J着
して、パネルの外表面にいわゆる星目等を発生さじ、品
質を低下されるという問題点があった。
However, the surface treatment 'fJf! When press-forming a steel plate as a panel material, not only is there a risk that the layered or film-like anti-corrosion treated surface will be scraped off, but the steel plate itself is expensive, and the soil that has poor press-formability may be scraped off. There was a problem in that the powder on the treated surface would adhere to the press mold or other panel materials, causing so-called star grains on the outer surface of the panel, degrading the quality.

(発明の目的) 本発明は上)ホした従来技術の問題点に着目してなされ
たものであり、ドア、フード、トランクリッド、バック
ドア等のようにそれぞれのパネルの端部をヘミング加工
により折り曲げ加工する自動車車体部品の防錆性能を向
上させ得るようにすることを目的とする。
(Objective of the Invention) The present invention has been made by focusing on the problems of the prior art mentioned above. The purpose of this invention is to improve the rust prevention performance of automobile body parts that are bent.

(発明の溝底) 上記目的を達成づるための本発明は、第1パネル材と第
2パネル材とからなり、前記第1パネル月の端部を折り
曲げて前記第1パネル材と前記第2パネル材とを一体化
して形成される自動車車体部品のうち、少なくとも前記
第1パネル拐に電着塗装等の防錆用塗装を施しlこ後、
前記第1パネル祠と前記第2パネル材とを合わVた状態
の下で前記第1パネル材の端部を前記第2パネル材の表
面側に折り曲げてna記第1パネル材と前記第2パネル
材を一体化するようにしたことを特徴とする自動車車体
部品の防錆り法である。
(Groove Bottom of the Invention) To achieve the above object, the present invention includes a first panel material and a second panel material, and the first panel material and the second panel material are formed by bending the ends of the first panel material. After applying anti-rust coating such as electrodeposition coating to at least the first panel of the automobile body parts formed by integrating the panel material,
While the first panel material and the second panel material are placed together, the end portion of the first panel material is bent toward the surface side of the second panel material, and the first panel material and the second panel material are folded. This is a rust prevention method for automobile body parts characterized by integrating panel materials.

(実施例) 以下、本発明の一実施例を図面に基づいて説明ジる。(Example) Hereinafter, one embodiment of the present invention will be explained based on the drawings.

第2図〜第6図は本発明の防錆方法をドアに具体化した
場合を示1各工程図であり、第1パネル材としてのドア
アウターパネルP1ど、第2パネル材としてのドアイン
ナーパネルP2とを(れぞれ第2図に示すようにプレス
加工した後、第3図に示づように、小物部品Tをスポッ
ト溶接してドアアウターパネルP1とドアインナーパネ
ル1)2とが成形される。
Figures 2 to 6 are process diagrams showing the case where the rust prevention method of the present invention is applied to a door. After pressing the panel P2 (as shown in FIG. 2), the small parts T are spot welded to form the door outer panel P1 and the door inner panel 1, as shown in FIG. molded.

次いで、第4図(A)(B)に示すように、ドアアウタ
ーパネルP1とドアアウタ−パネルP2に、それぞれ電
着塗装を施して表面に電着塗膜Qを形成し、それぞれの
防錆を図る。尚、電着塗装を行なう前に化成処理等の前
処理を予め行なってJ3<。尚、第4図(B)は同図(
A>に示すパネルP1とパネルP2の一部拡大断面図で
ある。
Next, as shown in FIGS. 4(A) and 4(B), the door outer panel P1 and the door outer panel P2 are electrocoated to form an electrocoated film Q on their surfaces to prevent rust. Plan. In addition, before performing electrodeposition coating, pretreatment such as chemical conversion treatment is performed in advance to achieve J3<. In addition, Figure 4 (B) is the same figure (
FIG. 3 is a partially enlarged sectional view of panel P1 and panel P2 shown in FIG.

そして、ドアアウターパネル1〕1 とドアインノー−
パネルP2とを第5図に示づように合わせた状態の下ぐ
ドアアウターパネル]〕1の端部[をドアインナーP2
の表面側に折り曲げて両方のパネルP1と1)2を一体
化する。第5図(B)は同図(A)に示JパネルP1と
パネルP2の一部拡大断面図である。尚、ドアアウター
パネル1)1の端部Eを折り曲げる前に両パネルP+ 
、P2のうち相互に接触づる部分に接着剤を塗布してお
く。また、防錆用塗装としては電着塗装以外に他の塗装
手段を用いても良く、更に第1パネル祠としてのインナ
ーパネルP1のみに防錆用塗装を施しても、良い。
Then, the door outer panel 1〕1 and the door inner panel
The lower door outer panel when the panel P2 and the lower door outer panel are aligned as shown in FIG.
1) to integrate both panels P1 and 1)2. FIG. 5(B) is a partially enlarged sectional view of the J panel P1 and panel P2 shown in FIG. 5(A). In addition, before folding the end E of the door outer panel 1) 1, both panels P+
, P2 that are in contact with each other are coated with adhesive. Further, as the rust-preventing coating, other coating means other than electrodeposition coating may be used, and furthermore, the rust-preventing coating may be applied only to the inner panel P1 as the first panel scarlet.

このようにして形成されたドアDに対して、第5図(A
>に示すようにヒンジ1−1等を取付番プた後、第6図
に示すように車両本体BにドアDを取付りる。
For the door D formed in this way, FIG.
After attaching the hinge 1-1 and the like as shown in FIG. 6, the door D is attached to the vehicle body B as shown in FIG.

(発明の効果) 以上のように、本発明によれば、第1パネル材と第2パ
ネル材とからなり、前記第1パネル材の端部を折り曲げ
て前記第1パネル材と前記第2パネル祠とを一体化して
形成される自動車車体部品のうち、少なくとも1)な配
路1パネル祠に電着塗装等の防錆用塗装を施した後、前
記第1パネル槽ΔどOη記第2パネル材とを合わせた状
態の下で+)1記第1パネル材の端部を前記第2パネル
月の表面側に折り曲げて前記第1パネル材とnrJ記第
2パネル材を一体化するようにしたので、絞り加工11
3はもちろんのこと第1パネル材と第2パネル材との合
わl!目においても、を着塗装等による塗膜が保持され
、パネル素材としC表面処理鋼板を用いることなく、確
実な防錆を行なうことが酊能と2jる。
(Effects of the Invention) As described above, according to the present invention, the first panel material and the second panel material are formed, and the ends of the first panel material are bent to form the first panel material and the second panel material. Among the automobile body parts formed by integrating the shrine and the shrine, at least 1) of the wiring 1 panel shrine is coated with anti-corrosion coating such as electrodeposition coating, and then the first panel tank Δ and Oη are applied to the second panel tank +) Bend the edge of the first panel material to the front side of the second panel to integrate the first panel material and the second panel material. So, drawing process 11
3, of course, the combination of the first panel material and the second panel material! Visually, the paint film is maintained, and reliable rust prevention can be achieved without using C surface-treated steel sheets as the panel material.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図(A)(B)は従来の自動車車体部品の防錆方法
を示す概略図、第2図〜第6図は本発明の一実施例を示
す工程図である。 Pl・・・ドアアウターパネル、’P 2・・・ドアイ
ンナーパネル、E・・・端部、B・・・車両本体。 特許出願人 日産自動車株式会社 (Aン 第1図 (B) ′−P2 Hu
FIGS. 1A and 1B are schematic diagrams showing a conventional rust prevention method for automobile body parts, and FIGS. 2 to 6 are process diagrams showing an embodiment of the present invention. Pl...door outer panel, 'P2...door inner panel, E...end, B...vehicle body. Patent applicant: Nissan Motor Co., Ltd. (A)

Claims (1)

【特許請求の範囲】 第1パネル材とW12パネル材とからなり、前記第1パ
ネル材の端部を折り曲げて前記第1パネル材とtIJk
!?112パネル材とを一体化して形成される自動車車
体部品のうら、少な(とも前記第1パネル材に電@塗装
等の防錆用塗装を施した後、前記第1パネル材と前記第
2パネル材とを合わせた状態の下で前記第1パネル材の
端部を前記第2パネル材の表面側に折り曲げ゛〔前記第
1パネル材と前記第2パネル材を一体化するようにしI
にとを特徴とする自動車車体部品の防錆方法。
[Scope of Claims] Consisting of a first panel material and a W12 panel material, an end portion of the first panel material is bent to form a tIJk with the first panel material.
! ? 112 The back side of the automobile body part formed by integrating the panel material with the first panel material and the second panel material is Bend the end of the first panel material toward the surface side of the second panel material while the two panels are together.
A rust prevention method for automobile body parts featuring Nito.
JP170884A 1984-01-09 1984-01-09 Rust prevention method for car body parts Pending JPS60146636A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP170884A JPS60146636A (en) 1984-01-09 1984-01-09 Rust prevention method for car body parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP170884A JPS60146636A (en) 1984-01-09 1984-01-09 Rust prevention method for car body parts

Publications (1)

Publication Number Publication Date
JPS60146636A true JPS60146636A (en) 1985-08-02

Family

ID=11509046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP170884A Pending JPS60146636A (en) 1984-01-09 1984-01-09 Rust prevention method for car body parts

Country Status (1)

Country Link
JP (1) JPS60146636A (en)

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