JPS63173612A - Filling of urethane into closed section of vehicle body - Google Patents
Filling of urethane into closed section of vehicle bodyInfo
- Publication number
- JPS63173612A JPS63173612A JP62005651A JP565187A JPS63173612A JP S63173612 A JPS63173612 A JP S63173612A JP 62005651 A JP62005651 A JP 62005651A JP 565187 A JP565187 A JP 565187A JP S63173612 A JPS63173612 A JP S63173612A
- Authority
- JP
- Japan
- Prior art keywords
- urethane
- section
- closed cross
- closed
- jig
- 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
Links
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 claims abstract description 29
- 239000011550 stock solution Substances 0.000 claims abstract description 17
- 239000006260 foam Substances 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 7
- 238000005187 foaming Methods 0.000 claims description 10
- 239000004743 Polypropylene Substances 0.000 abstract description 3
- -1 polypropylene Polymers 0.000 abstract description 3
- 229920001155 polypropylene Polymers 0.000 abstract description 3
- 230000000873 masking effect Effects 0.000 abstract 1
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229920001228 polyisocyanate Polymers 0.000 description 1
- 239000005056 polyisocyanate Substances 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 150000003673 urethanes Chemical class 0.000 description 1
Landscapes
- Body Structure For Vehicles (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
- Molding Of Porous Articles (AREA)
Abstract
Description
【発明の詳細な説明】
産呈上立と凪分互
この発明は、車体の閉断面内にウレタン原液を注入して
発泡させることにより、ウレタンフオームを閉断面内に
充填させる方法に関するものである。[Detailed description of the invention] This invention relates to a method for filling a closed cross section of a car body with urethane foam by injecting a urethane stock solution into the closed cross section and foaming it. .
従】ｑｌｌ
一般に、自動車には、重量軽減の要望がある反面、車体
の強度を確保する必要があることがら、例えば板厚の薄
い車体パネルに断面ハツト型のメンバを溶接して閉断面
を形成することにより、重量増加をそれ程招かずに、断
面二次モーメントを大きくして車体強度を確保するよう
にしている。In general, while there is a desire to reduce the weight of automobiles, it is also necessary to ensure the strength of the vehicle body. For example, members with a hat-shaped cross section are welded to thin body panels to form a closed cross section. By doing so, the moment of inertia of the area is increased and the strength of the vehicle body is ensured without causing a significant increase in weight.
さらに、それ程重量増加を招がずに、車体強度を向上さ
せるため、閉断面内にウレタン原液を注入して発泡させ
ることにより、この閉断面内にウレタンフオームを充填
させることが考えられる。Furthermore, in order to improve the strength of the vehicle body without causing a significant increase in weight, it is conceivable to fill the closed cross section with urethane foam by injecting a urethane stock solution into the closed cross section and foaming it.
このようにすると、振動抑制や断熱作用等の向上も期待
できる（特開昭４８−２６３１号公報参照）。In this way, improvements in vibration suppression, heat insulation, etc. can be expected (see Japanese Patent Laid-Open No. 48-2631).
ところで、メンバには水抜き孔が開設されていたり、又
、メンバと車体パネルとの間に隙間が発生していたりし
て、閉断面には、孔や隙間等の複数の開口が形成されて
いる。しかも、ウレタン原液は粘性が低いため、閉断面
への注入時には、その開口から流出するので、その複数
の開口の各々をテープやグロメットで塞いだ状態で、ウ
レタン原液を閉断面内に注入する必要がある。By the way, the member may have a drainage hole, or there may be a gap between the member and the vehicle body panel, and a closed cross section may have multiple openings such as holes and gaps. There is. Moreover, since the urethane stock solution has a low viscosity, when it is injected into a closed section, it will flow out from the opening, so it is necessary to cover each of the multiple openings with tape or grommets before injecting the urethane stock solution into the closed section. There is.
明が解決しようとする問題へ
しかしながら、複数の開口をテープやグロメットで塞ぐ
には、各開口にテープを貼付けたり、グロメットを嵌合
させたり、又、発泡後には、これらを剥がす必要があり
、作業性が悪く、しかも、このテープ等を使い捨てにす
ると、コスト的にも不利となる、という問題がある。However, in order to close multiple openings with tape or grommets, it is necessary to attach tape or fit grommets to each opening, and after foaming, it is necessary to peel these off. There is a problem in that workability is poor, and if the tape or the like is made disposable, it is disadvantageous in terms of cost.
５ ヴを するための手段
この発明は、かかる従来の問題点に着目してなされたも
ので、車体に形成された複数の開口を有する閉断面内に
、ウレタン原液を注入して発泡させることにより、該閉
断面内にウレタンフオームを充填させる車体閉断面内へ
のウレタン充填方法において、少なくとも表面が樹脂製
のシール用治具で、前記閉断面の周囲を被覆して、前記
閉断面の複数の開口を閉成した後、該閉断面内に前記ウ
レタン原液を注入して、該閉断面内で発泡させ、しかる
後、前記シール用治具を前記閉断面から取外して前記ウ
レタンフオームの充填を完了した車体閉断面内へのウレ
タン充填方法としたことを特徴としている。5. Means for Foaming This invention was made by paying attention to such conventional problems, and by injecting a urethane stock solution into a closed cross section having a plurality of openings formed in a car body and causing foaming. , in a method for filling urethane into a closed cross section of a vehicle body, in which the closed cross section is filled with urethane foam, the periphery of the closed cross section is covered with a sealing jig whose surface is made of resin at least, and a plurality of the closed cross sections are sealed. After closing the opening, the urethane stock solution is injected into the closed cross section to cause foaming within the closed cross section, and then the sealing jig is removed from the closed cross section to complete filling of the urethane foam. It is characterized by a method of filling urethane into the closed section of the vehicle body.
作用
かかる手段によると、単一物品のシール用治具を装着す
るだけで、閉断面の複数の開口を一度に塞ぐことができ
、従来のようにテープ等で個々に塞ぐ必要がないと同時
に、ウレタン発泡後にも、シール用治具を外すだけで、
従来のように複数のテープ等を剥がす必要がないため、
作業性が向上すると同時に、再使用も可能であるため、
コスト的にも有利である。しかも、このシール用治具は
。According to this method, multiple openings in a closed cross section can be closed at once by simply attaching a sealing jig for a single article, and there is no need to individually close them with tape or the like as in the past. Even after urethane foaming, simply remove the sealing jig.
Because there is no need to peel off multiple tapes as in the past,
It improves work efficiency and at the same time allows for reuse.
It is also advantageous in terms of cost. Moreover, this sealing jig.
少なくとも表面が樹脂製であるため、ウレタンフオーム
が接着することなく、簡単に取り外すことができる。Since at least the surface is made of resin, the urethane foam can be easily removed without adhesion.
実施例 以下、この発明を実施例に基づいて説明する。Example Hereinafter, the present invention will be explained based on examples.
第１図ないし第３図はこの考案の第１実施例を示す図で
ある。1 to 3 are diagrams showing a first embodiment of this invention.
第１図中筒号１は車体のフロアパネルで、このフロアパ
ネル１の車幅方向両端部には車両前後方向に沿って一対
のサイドシル２（第１図中一方は省略）が接合されてい
る。このフロアパネル１の上側には、両サイドシル２の
間に車幅方向に沿ってクロスメンバ３が配設されている
。これで、この断面ハツト型のクロスメンバ３とフロア
パネル１とで、閉断面４が形成されている。また、フロ
アパネル１には、凹所１ａが形成されているため、クロ
スメンバ３のフランジ部３ｂとの間に隙間Ｃが発生して
いる。第１図等では、間隙Ｃが２箇所しか表われていな
いが、他の部位にも同様に発生している。そして、この
閉断面４内にウレタンフオーム５が充填されることによ
り、それ程重量増加を招かずに、車体強度、振動吸収性
並びに断熱性の向上が図られる。Number 1 in the middle of Fig. 1 is a floor panel of the vehicle body, and a pair of side sills 2 (one is omitted in Fig. 1) are joined to both ends of the floor panel 1 in the vehicle width direction along the longitudinal direction of the vehicle. . A cross member 3 is disposed above the floor panel 1 between both side sills 2 along the vehicle width direction. The cross member 3, which has a hat-shaped cross section, and the floor panel 1 now form a closed cross section 4. Further, since the floor panel 1 is formed with the recess 1a, a gap C is generated between the floor panel 1 and the flange portion 3b of the cross member 3. In FIG. 1, etc., only two gaps C are shown, but they also occur in other locations as well. By filling the closed cross section 4 with the urethane foam 5, the strength of the vehicle body, vibration absorption properties, and heat insulation properties can be improved without causing a significant increase in weight.
以下に、この閉断面４内にウレタンフオーム５を充填す
る方法について説明する。A method for filling the urethane foam 5 into the closed section 4 will be described below.
クロスメンバ３とフロアパネル１との間に間隙Ｃが発生
しているため、この間隙Ｃを塞ぐシール用治具６を用意
する。この治具６は、−例としてポリプロピレン（ｐｐ
）にて、クロスメンバ３と適合した形状に形成され、間
隙Ｃを閉成する突部６ｃが突設されている。また、この
シール用治具６の上面部６ａには、ウレタン注入口３ｄ
が形成され、この注入口３ｄはクロスメンバ３の上面部
３Ｃに形成されたウレタン注入口３ｄと一致するように
なっている。Since a gap C is generated between the cross member 3 and the floor panel 1, a sealing jig 6 to close this gap C is prepared. This jig 6 is made of polypropylene (pp.
), a protrusion 6c which is formed in a shape compatible with the cross member 3 and closes the gap C is provided in a protruding manner. Further, a urethane injection port 3d is provided on the upper surface 6a of this sealing jig 6.
is formed, and this injection port 3d is aligned with the urethane injection port 3d formed in the upper surface portion 3C of the cross member 3.
このようなシール用治具６をクロスメンバ３に、第３図
のようにクロスメンバ３に設けられたウェルドナツト７
にボルト８を螺合させることにより、装着する。これで
、クロスメンバ３とフロアパネル１との間隙Ｃがシール
用治具６の突部６Ｃによって閉成されることとなる。そ
の後、ウレタン注入口３ｄ 、 ６ｂから、ポリイソシ
アネートやポリオール等が混合されたウレタン原液を、
閉断面４内に注入する。このウレタン原液は粘性が低い
が、シール用治具６により間隙Ｃが閉成されているため
、閉所面４内より流れ出ることがない。注入後、一定時
間経過すると、ウレタン原液は発泡して閉断面４内にウ
レタンフオーム５が充填されることとなる。しかる後、
ボルト８を外してシール用治具６をクロスメンバ３から
取り外すのであるが、この場合には、シール用治具６が
ポリプロピレンで形成されているため、ウレタンフオー
ム５が付着することがない結果、簡単に取り外すことが
できる。Such a sealing jig 6 is attached to the cross member 3, and a weld nut 7 provided on the cross member 3 as shown in FIG.
It is attached by screwing together the bolt 8. The gap C between the cross member 3 and the floor panel 1 is now closed by the protrusion 6C of the sealing jig 6. After that, the urethane stock solution mixed with polyisocyanate, polyol, etc. is poured from the urethane injection ports 3d and 6b.
Inject into the closed section 4. Although this urethane stock solution has a low viscosity, since the gap C is closed by the sealing jig 6, it does not flow out from inside the confined space surface 4. After a certain period of time has elapsed after injection, the urethane stock solution foams and the closed cross section 4 is filled with urethane foam 5. After that,
The bolts 8 are removed to remove the sealing jig 6 from the cross member 3, but in this case, since the sealing jig 6 is made of polypropylene, the urethane foam 5 will not adhere to it. Can be easily removed.
このようにシール用治具６を用いることにより、従来の
ようにテープ等を使用する必要がなく、単一物のシール
用治具６を着脱するだけで良いため、作業性が良好であ
ると同時に、多数回の使用にも耐えるため、使い捨ての
テープと比較すると、コストの面でも有利である。By using the sealing jig 6 in this way, there is no need to use tape or the like as in the past, and it is only necessary to attach and detach the single sealing jig 6, which improves workability. At the same time, since it can withstand multiple uses, it is advantageous in terms of cost compared to disposable tapes.
また、第４図ないし第６図には、この発明の第２実施例
を示す。Further, FIGS. 4 to 6 show a second embodiment of the present invention.
この実施例は、フロアパネル１の下側にサイドメンバ１
３が配設されることにより閉断面１４が形成されている
。このサイドメンバ１３は、端末が開放されて開口１３
ａが形成されると共に、底面部１３ｂには複数の水抜き
孔１３ｃが形成されている。In this embodiment, there is a side member 1 on the underside of the floor panel 1.
3, a closed cross section 14 is formed. This side member 13 has an opening 13 when the terminal is opened.
a is formed, and a plurality of drain holes 13c are formed in the bottom surface portion 13b.
一方、シール用治具１Ｇは、サイドメンバ１３を覆うよ
うな形状を呈し、その端末の開口１３ａおよび水抜き孔
１３ｃを閉成するように設定されている。On the other hand, the sealing jig 1G has a shape that covers the side member 13, and is set to close the opening 13a and the drain hole 13c at the end thereof.
このようなシール用治具１６もウレタン原液注入前に、
ウェルドナツト７およびボルト８でサイドメンバ１３に
装看し、その後、ウレタン原液を注入して発泡させた後
、取り外すようにしている。Such a sealing jig 16 is also used before injection of the urethane stock solution.
It is attached to the side member 13 with a weld nut 7 and bolt 8, and then removed after injecting a urethane stock solution and foaming it.
他の構成および作用は第１実施例と同様であるので説明
を省略する。The other configurations and operations are the same as those in the first embodiment, so their explanations will be omitted.
なお、上記実施例では、フロアパネル１にメンバ３，１
３を溶接して閉断面４，１４を形成したが、これに限定
されるものでなく、他の部位でも良いことは勿論である
。また、シール用治具６，１６は全体が樹脂で形成され
ているが、これに限らず。In the above embodiment, the members 3 and 1 are attached to the floor panel 1.
3 are welded to form the closed cross sections 4, 14, but the present invention is not limited to this, and of course other parts may be used. Furthermore, although the sealing jigs 6 and 16 are entirely made of resin, they are not limited thereto.
表面に樹脂をコーティングしたものでも良い。It may also be one whose surface is coated with resin.
又里立羞困
以上説明してきたように、この発明によれば、シール用
治具を用いて閉断面内に注入されたウレタン原液の液洩
れを防止するようにしているため、従来と比較すると、
作業性が向上すると共に、コスト的にも有利である、と
いう実用上有益な効果を発揮する。As explained above, according to the present invention, a sealing jig is used to prevent leakage of the urethane stock solution injected into the closed cross section, so compared to the conventional method, ,
It exhibits a practically beneficial effect of improving workability and being advantageous in terms of cost.
第１図ないし第３図はこの発明の車体閉断面内内へのウ
レタン充填方法の第１実施例を示す図で、第１図はシー
ル用治具と閉断面とを示す分解斜視図、第２図はウレタ
ン注入時における隙間開成状態を示す断面図、第３図は
ウレタン注入時におけるシール用治具取付部位を示す断
面図、第４図ないし第６図はこの発明の第２実施例を示
す図で、第４図はシール用治具と閉断面とを示す分解斜
視図、第５図はウレタン注入時における水抜き孔閉成状
態を示す断面図、第６図は第３図に相当する断面図であ
る。
４．１４・・・閉断面 ５・・・ウレタンフオー
ム６．１６・・・シール用治具 Ｃ・・・間隙（開口）
１３ｃ・・・水抜き孔
第１図
４・−閉断面
第２図
第３図
第４図
第５図
第６区1 to 3 are diagrams showing a first embodiment of the method of filling urethane into a closed cross section of a vehicle body according to the present invention, and FIG. 1 is an exploded perspective view showing a sealing jig and a closed cross section, and FIG. FIG. 2 is a cross-sectional view showing a gap opening state during urethane injection, FIG. 3 is a cross-sectional view showing a sealing jig attachment site during urethane injection, and FIGS. 4 to 6 show a second embodiment of the present invention. 4 is an exploded perspective view showing a sealing jig and a closed cross section, FIG. 5 is a sectional view showing a drain hole closed state during urethane injection, and FIG. 6 corresponds to FIG. 3. FIG. 4.14...Closed cross section 5...Urethane foam 6.16...Sealing jig C...Gap (opening)
13c... Drain hole Fig. 1 4 - Closed section Fig. 2 Fig. 3 Fig. 4 Fig. 5 Fig. 6 Section
Claims (1)
タン原液を注入して発泡させることにより、該閉断面内
にウレタンフォームを充填させる車体閉断面内へのウレ
タン充填方法において、少なくとも表面が樹脂製のシー
ル用治具で、前記閉断面の周囲を被覆して、前記閉断面
の複数の開口を閉成した後、該閉断面内に前記ウレタン
原液を注入して、該閉断面内で発泡させ、しかる後、前
記シール用治具を前記閉断面から取外して前記ウレタン
フォームの充填を完了したことを特徴とする車体閉断面
内へのウレタン充填方法。A method for filling urethane into a closed cross section of a car body in which urethane foam is filled into the closed cross section of a car body by injecting and foaming a urethane stock solution into a closed cross section having a plurality of openings formed in the car body. After covering the periphery of the closed cross section with a resin sealing jig and closing the plurality of openings in the closed cross section, the urethane stock solution is injected into the closed cross section, and the urethane stock solution is injected into the closed cross section. A method for filling urethane into a closed cross-section of a vehicle body, characterized in that the filling of the urethane foam is completed by foaming and then removing the sealing jig from the closed cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62005651A JPS63173612A (en) | 1987-01-13 | 1987-01-13 | Filling of urethane into closed section of vehicle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62005651A JPS63173612A (en) | 1987-01-13 | 1987-01-13 | Filling of urethane into closed section of vehicle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63173612A true JPS63173612A (en) | 1988-07-18 |
Family
ID=11617031
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62005651A Pending JPS63173612A (en) | 1987-01-13 | 1987-01-13 | Filling of urethane into closed section of vehicle body |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63173612A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014114638A1 (en) | 2014-10-09 | 2016-04-14 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Connecting device and method for producing the connecting device |
| JP2019116262A (en) * | 2017-12-27 | 2019-07-18 | 現代自動車株式会社Ｈｙｕｎｄａｉ Ｍｏｔｏｒ Ｃｏｍｐａｎｙ | Side vehicle body reinforcement structure |
-
1987
- 1987-01-13 JP JP62005651A patent/JPS63173612A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014114638A1 (en) | 2014-10-09 | 2016-04-14 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Connecting device and method for producing the connecting device |
| JP2019116262A (en) * | 2017-12-27 | 2019-07-18 | 現代自動車株式会社Ｈｙｕｎｄａｉ Ｍｏｔｏｒ Ｃｏｍｐａｎｙ | Side vehicle body reinforcement structure |
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