JPS63179229A - Method for detecting sucking of air from inside of automobile - Google Patents
Method for detecting sucking of air from inside of automobileInfo
- Publication number
- JPS63179229A JPS63179229A JP62012063A JP1206387A JPS63179229A JP S63179229 A JPS63179229 A JP S63179229A JP 62012063 A JP62012063 A JP 62012063A JP 1206387 A JP1206387 A JP 1206387A JP S63179229 A JPS63179229 A JP S63179229A
- Authority
- JP
- Japan
- Prior art keywords
- vehicle
- air
- door
- opening
- color
- 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
- 238000000034 method Methods 0.000 title claims description 9
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000000126 substance Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 4
- 238000002845 discoloration Methods 0.000 claims description 3
- 229920002472 Starch Polymers 0.000 abstract description 19
- 239000008107 starch Substances 0.000 abstract description 19
- 235000019698 starch Nutrition 0.000 abstract description 17
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical compound [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 abstract description 10
- 229910052740 iodine Inorganic materials 0.000 abstract description 10
- 239000011630 iodine Substances 0.000 abstract description 10
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 3
- 238000007664 blowing Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004509 smoke generator Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Landscapes
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、自動車の走行時に生じる車室内外の圧力差に
よって車室内の空気が車体とドアの間等の隙間から車室
外に吸い出される部分ないし経路を予め検出する方法に
関する。Detailed Description of the Invention (Industrial Application Field) The present invention is characterized in that the air inside the vehicle is sucked out of the vehicle through a gap such as between the vehicle body and the door due to the pressure difference between the interior and exterior of the vehicle that occurs when the vehicle is running. The present invention relates to a method of detecting a portion or route in advance.
（従来の技術）
自動車が走行状態にある場合、空気の抵抗を受けるだけ
でなく車室の内外に圧力差が生じるが、このような状態
を調べるには当該自動車を実際に空気流の中においてそ
の車体まわりの空気の流れを観測してみる必要がある。(Prior art) When a car is running, it is not only subject to air resistance but also creates a pressure difference between the inside and outside of the cabin. It is necessary to observe the air flow around the car body.
そこで、一般的には風洞の中に当該自動車をセットして
、その前方から後方に風を送ることにより車体まわりの
空気流の状態を調べる所謂風洞実験が行われる。この風
洞実験に関連した従来技術としては、例えば実開昭６０
−４２９３９号公報に示されているようなものがある。Therefore, a so-called wind tunnel experiment is generally conducted in which the vehicle is set in a wind tunnel and wind is sent from the front to the rear to investigate the state of air flow around the vehicle body. As a conventional technology related to this wind tunnel experiment, for example,
There is one as shown in Japanese Patent No.-42939.
これは、風洞の中にセットされた当該自動車の前方に煙
発生装置を取付け、送風時に該装置から煙を発生させて
車体後方に流し、その煙の流れから車体まわりの空気流
の状態を観測するもので・ある。−
１、
ところで、自動車においては、車室内への雨水等の侵入
を防止したり、走行時に生じる上記車室内外の圧力差が
原因で車室内の空気が車室外に吸い出されることによる
風騒音の発生を防止する等のため、例えばドア開口部と
ドアとの間にウェザ−ストリップ等のシール部材が設け
られる。その場合、シール部材としては、所要の水密気
密性が得られるようにその形状や材質が選択される。This involves attaching a smoke generator to the front of the vehicle set in a wind tunnel, and when blowing air, the device generates smoke that flows toward the rear of the vehicle, and the state of the airflow around the vehicle is observed from the flow of smoke. There is something to do. - 1. By the way, in automobiles, it is necessary to prevent rainwater etc. from entering the vehicle interior, and to prevent wind noise caused by the air inside the vehicle being sucked out of the vehicle due to the pressure difference between the interior and exterior of the vehicle that occurs during driving. For example, a sealing member such as a weather strip is provided between the door opening and the door in order to prevent the occurrence of such occurrence. In that case, the shape and material of the sealing member are selected so as to obtain the required watertightness.
（発明が解決しようとする問題点）
然るに、実際に高速走行してみると、車室内外に生じる
比較的大きな圧力差が原因で、上記シール部材の取付け
られているシール部分又はその周辺部が僅かながら車室
側に吸い出されるように変形する結果、シール部におけ
る何れかの箇所で所謂シール切れが生じ、その部分から
車室内の空気が車室外に吸い出されて所謂風騒音が生じ
ることがある。このような問題に対して、従来は上記空
気の吸い出し部分ないし吸い出し経路を予め的確に検出
し得る方法がなかったのである。(Problem to be Solved by the Invention) However, when actually driving at high speed, the seal portion to which the above-mentioned seal member is attached or the surrounding area may be damaged due to the relatively large pressure difference generated inside and outside the vehicle interior. As a result of the deformation being slightly sucked out toward the passenger compartment, a so-called seal breakage occurs at some point in the seal part, and the air inside the passenger compartment is sucked out of the passenger compartment from that part, causing so-called wind noise. There is. In order to solve this problem, conventionally there has been no method for accurately detecting the air suction portion or suction path in advance.
本発明は、自動車の車室内空気吸い出し現象に関する上
記のような実情に対処するもので、走行時（特に高速走
行時）に生じ易い車室内から車室外への空気の吸い出し
による風騒音の発生を未然に防止する等のなめ、自動車
における車室内空気の吸い出し部分ないし吸い出し経路
を予め的確に検出することができる方法を提供すること
を目的とする。The present invention addresses the above-mentioned actual situation regarding the phenomenon of air being sucked out of the vehicle interior, and is intended to prevent wind noise caused by air being sucked out from the interior of the vehicle to the exterior, which tends to occur when driving (especially when driving at high speeds). It is an object of the present invention to provide a method capable of accurately detecting in advance a suction portion or a suction route of air inside a vehicle interior of an automobile.
（問題点を解決するための手段）
上記目的達成のため本発明に係る自動車の車室内空気吸
い出し検出方法は次のように構成したことを特徴とする
。−
即ち、少なくとも、車体に形成された開口部若しくはこ
れを開閉する開閉体の周縁部に配設されるシール部材に
沿ってその車外側に、変色作用ガスとの反応によって変
色する変色可能物質を塗布する一方、車室内には上記変
色作用ガスを存在させ、この状態で車体の周囲に空気流
を与えて車室内空気を車室外に吸い出させる。そして、
その後に上記変色可能物質における変色箇所を調べて、
その変色箇所から車室内空気の車室外への吸い出し部分
ないし経路を検出する。(Means for Solving the Problems) In order to achieve the above object, the method for detecting air sucking out of a vehicle interior according to the present invention is characterized by being configured as follows. - That is, at least a color-changing substance that changes color due to reaction with a color-changing gas is applied to the outside of the vehicle along the seal member disposed at the peripheral edge of the opening formed in the vehicle body or the opening/closing body that opens and closes the opening. While coating, the color-changing gas is made to exist in the vehicle interior, and in this state, an air flow is applied around the vehicle body to suck out the air inside the vehicle outside the vehicle interior. and,
After that, examine the discoloration location in the above-mentioned discolorable substance,
The suction portion or route of the air inside the vehicle to the outside of the vehicle is detected from the discolored area.
ここで、上記変色作用ガス及び変色可能物質としては、
例えば、ヨウ素ガスとデンプン糊や、アンモニアガスと
ｐＨ試験紙などが用いられる。Here, the above-mentioned color-changing gas and color-changing substance include:
For example, iodine gas and starch paste, ammonia gas and pH test paper, etc. are used.
（作 用）
上記の構成によれば１．車室内の空気が車室外に吸い出
される際に上記変色作用ガスも車室内空気と共に車室外
に吸い出されるが、その際、開閉体等の少なくとも周縁
部に沿って予め塗布された変色可能物質に上記変色作用
ガスが作用して該物質を変色させる。従って、その変色
可能物質の変色作用ガスによる変色箇所を確認するだけ
で上記車室内空気の吸い出し部分を的確且つ容易に検出
することができる。(Function) According to the above configuration, 1. When the air inside the vehicle is sucked out of the vehicle, the color-changing gas is also sucked out of the vehicle along with the air inside the vehicle. The color-changing gas acts on the substance to change its color. Therefore, the portion from which the air inside the vehicle is being sucked out can be accurately and easily detected simply by checking the portion of the color-changeable material that has changed color due to the color-changing gas.
（実 施 例） 以下、本発明の詳細な説明する。(Example) The present invention will be explained in detail below.
この実施例は、第１図に示すような車体１に形成された
ドア開口部１ａとこれに備えられたドア２との間のシー
ル部の所謂シール切れによる車室内空気吸い出し箇所を
調べる場合に関するものである。この実施例では上記車
体１を風洞（この時は未だ送風していない）内にセット
した状態で、先ず車体１におけるドア開口部１ａの周縁
部分（第１図に斜線で示した部分）にデンプン糊を塗布
する。This embodiment relates to the case of investigating a location where air inside the vehicle is sucked out due to a so-called broken seal between a door opening 1a formed in a vehicle body 1 and a door 2 provided therein as shown in FIG. It is something. In this embodiment, with the vehicle body 1 set in a wind tunnel (not blowing air at this time), starch is first applied to the periphery of the door opening 1a (the shaded area in FIG. 1) of the vehicle body 1. Apply glue.
このデンプン糊の塗布箇所を更に具体的に説明するため
に、第１図Ｘ部分の断面構造を第２図に拡大して示す、
この第２図においては符号Ａが車室内を示し符号Ｂが車
室外を示す、そして、上記車体１におけるドア開口部１
ａとドア２との間には図示の閉鎖状態で両者間の隙間を
シールするゴム等でなる第１〜第３シール部材３〜５が
設けられている。このうち最も車内側に配置された第１
シール部材３は、上記ドア開口部１ａの上縁に装着され
たウェルト６に固着されてドアサツシュ部２ａとの間を
シールするようになっている。また、最も車外側に配置
された第３シール部材５は、車体１のルーフサイド部に
取付けられてドア２のレインレール部２ｂとの間をシー
ルするようになっており、更にこれらのシール部材３．
５の中間に配置された第２シール部材４は、上記ドアサ
ツシュ部２ａの外周に取付られて車体１との間をシール
するように構成されている。そして、この場合、第１シ
ール部材３と第２シール部材４との間及び第２シール部
材４と第３シール部材５との間に夫々位置するドア開口
部周縁の車体外面側に上記デンプン糊７，７を塗布する
。In order to more specifically explain the location where the starch paste is applied, the cross-sectional structure of the portion X in FIG. 1 is shown enlarged in FIG. 2.
In FIG. 2, the symbol A indicates the inside of the vehicle, and the symbol B indicates the exterior of the vehicle, and the door opening 1 in the vehicle body 1
First to third seal members 3 to 5 made of rubber or the like are provided between the door 2 and the door 2 to seal the gap between them in the illustrated closed state. Of these, the first one is located closest to the inside of the car.
The sealing member 3 is fixed to a welt 6 attached to the upper edge of the door opening 1a to seal between the door sash 2a and the door sash 2a. Further, the third seal member 5 disposed on the outermost side of the vehicle is attached to the roof side portion of the vehicle body 1 to seal between it and the rain rail portion 2b of the door 2. 3.
A second seal member 4 disposed between the door sash portions 5 and 5 is attached to the outer periphery of the door sash portion 2a and is configured to seal between the door sash portion 2a and the vehicle body 1. In this case, the starch paste is applied to the outer surface of the vehicle body at the periphery of the door opening located between the first seal member 3 and the second seal member 4 and between the second seal member 4 and the third seal member 5, respectively. Apply 7,7.
次に、上記のようにしてドア開口部１ａの周縁にデンプ
ン糊７．７を塗布した後、作業者が粗製ヨウ素（固体）
とヨウ化カリウムとを持って車体１内に乗り込み、然る
後、ドア２等を閉めた所定の密閉状態で、走行時に相当
する風を車体１の前方から後方に向けて送る一方、車室
内Ａで作業者が上記粗製ヨウ素にヨウ化カリウムを徐々
に加えて昇華させることによりヨウ素ガスを発生させる
。そして、この状態を所定時間保持した後、上記車室内
におけるヨウ素ガスの発生作業を停止した上で、車体１
に対する送風動作も停止し、その状態で上記ドア開口部
１ａの周縁に予め塗布しておいたデンプン糊７．７の変
色箇所を調べる。Next, after applying starch paste 7.7 to the periphery of the door opening 1a as described above, the worker applies crude iodine (solid)
and potassium iodide, and enter the vehicle body 1. Then, with the doors 2 etc. closed in a predetermined sealed state, the wind corresponding to when driving is sent from the front to the rear of the vehicle body 1, and the inside of the vehicle is In A, an operator gradually adds potassium iodide to the crude iodine and sublimates the mixture to generate iodine gas. After this state is maintained for a predetermined period of time, the iodine gas generation work in the vehicle interior is stopped, and the vehicle body 1 is
The air blowing operation is also stopped, and in this state, the discolored portion of the starch glue 7.7 previously applied to the periphery of the door opening 1a is examined.
上記の構成によれば、走行時に相当する風が車体１の前
方から後方に向けて送られた時にドア開口部１ａとドア
２との間の何れかの箇所から車室内Ａの空気が車室外Ｂ
に吸い出された場合には、その空気と共に車室内Ａのヨ
ウ素ガスも上記の吸い出し箇所から車室外Ｂに吸い出さ
れる。そして、その時に、ドア開口部１ａの周縁に塗布
されたデンプン糊７．７に上記ヨウ素ガスが作用して所
謂ヨウ素−デンプン反応が生じる結果、上記空気吸い出
し箇所におけるデンプン糊７，７が青らん色に変色する
。従って、このデンプン糊７，７の変色箇所を調べるこ
とによって、走行時における上記ドア開口部１ａとドア
２との間のシール部分のシール切れによる車室内空気の
吸い出し箇所を容易に且つ確実に検出することができる
。According to the above configuration, when the wind corresponding to when the vehicle is running is sent from the front to the rear of the vehicle body 1, the air in the vehicle interior A is transferred to the outside of the vehicle from somewhere between the door opening 1a and the door 2. B
When the air is sucked out, the iodine gas in the vehicle interior A is also sucked out to the exterior B of the vehicle from the above-mentioned suction point. At that time, the iodine gas acts on the starch paste 7.7 applied to the periphery of the door opening 1a, causing a so-called iodine-starch reaction, and as a result, the starch paste 7.7 at the air suction point turns blue. change color. Therefore, by checking the discolored parts of the starch pastes 7, 7, it is possible to easily and reliably detect the part where the air inside the vehicle is being sucked out due to the broken seal between the door opening 1a and the door 2 during driving. can do.
尚、この実施例においては、変色作用ガス及び変色可能
物質としてヨウ素ガス及びデンプン糊を用いたが、これ
らに代えて例えばアンモニアガス（アンモニア水を揮発
させることにより発生させる）及びｐＨ試験紙を用いる
こともできる。その場合、ｐＨ試験紙の貼付箇所は上記
デンプン瑚の塗布箇所と同一であるが、その呈色状態を
調べる作業はｐＨ試験紙が乾いてしまう前（つまり変色
箇所が消えてしまう前）に行う必要がある。In this example, iodine gas and starch paste were used as the color-changing gas and color-changing substance, but instead of these, for example, ammonia gas (generated by volatilizing aqueous ammonia) and pH test paper were used. You can also do that. In that case, the place where the pH test paper is pasted is the same as the place where the starch paste is applied above, but the work to check its coloring should be done before the pH test paper dries (in other words, before the discolored area disappears). There is a need.
また、上記の実施例は車体１のドア開口部１ａないしド
ア２の周縁における所謂シール切れ箇所を検出する場合
に関するものであるが、本発明方法を用いれば車室内空
気の吸い出し経路をも検出することができる。例えばド
ア内側の空気吸い出し経路を検出したい場合には、第３
図に示すように、ドア開口部１ａ’に備えられたドア２
′の車室内側の多数箇所にデンプン糊（ｐＨ試験紙でも
よいことは上述した通り）７′・・・７′を塗布してお
けばよい。このようにデンプン糊７′・・・７′を塗布
するに当たっては、ドア２′の内側に設けられたドアト
リム等を予め取外しておくことは勿論である。Furthermore, although the above-mentioned embodiment relates to the case of detecting a so-called seal breakage point in the door opening 1a of the vehicle body 1 or the periphery of the door 2, if the method of the present invention is used, the suction route of the air inside the vehicle can also be detected. be able to. For example, if you want to detect the air suction route inside the door, the third
As shown in the figure, a door 2 provided in a door opening 1a'
Starch paste (as mentioned above, pH test paper may also be used) 7'...7' may be applied to multiple locations on the inside of the passenger compartment. In applying the starch paste 7'...7' in this manner, it goes without saying that the door trim and the like provided on the inside of the door 2' must be removed in advance.
（発明の効果）
以上のように、本発明によれば、自動車の走行時（特に
高速走行時）に生じる車室内外の圧力差によって車室内
の空気が車室外に吸い出される箇所及び経路が容易にし
かも確実に検出することができる。これにより、例えば
高速走行時におけるドアと車体との間のシール部の所謂
シール切れに適切に対処することができ、該シール切れ
による風騒音の発生を未然に防止することが可能となる
。(Effects of the Invention) As described above, according to the present invention, the locations and routes through which air inside the vehicle is sucked out of the vehicle due to the pressure difference between the interior and exterior of the vehicle that occurs when the vehicle is running (particularly when traveling at high speeds) are reduced. It can be detected easily and reliably. As a result, it is possible to appropriately deal with so-called seal breakage of the seal portion between the door and the vehicle body during high-speed driving, for example, and it is possible to prevent wind noise from occurring due to the seal breakage.
第１図は本発明の１実施例が適用される自動車の側面図
、第２図は第１図■−■線で切断した拡大断面図である
。また、第３図は本発明によって車室内空気吸い出し経
路を検出する場合に関するもので、ドア内側における変
色可能物質の塗布箇所を示す斜視図である。
１・・・車体、ｌａ、ｌａ’・・・開口部（ドア開口部
）、２．２’・・・開閉体、３．４．５・・・シール部
材、７，７′・・・変色可能物質（デンプン糊）。
第１図
第２図
ンFIG. 1 is a side view of an automobile to which an embodiment of the present invention is applied, and FIG. 2 is an enlarged sectional view taken along line 1--2 in FIG. FIG. 3 is a perspective view showing a location where the discolorable substance is applied on the inside of the door, which relates to the detection of the air suction path in the vehicle interior according to the present invention. 1... Vehicle body, la, la'... Opening (door opening), 2.2'... Opening/closing body, 3.4.5... Seal member, 7, 7'... Discoloration Possible substances (starch paste). Figure 1 Figure 2
Claims (1)
が備えられた自動車において走行時に上記開閉体と車体
との間を通って車室内から車室外に吸い出される空気の
吸い出し部分ないし経路を検出する方法であって、少な
くとも上記開閉体若しくは開口部の周縁部に配設される
シール部材に沿ってその車外側に、変色作用ガスとの反
応によって変色する変色可能物質を塗布する一方、車室
内には上記変色作用ガスを存在させ、且つこの状態で車
体の周囲に空気流を与えて車室内空気を車室外に吸い出
させた後、上記変色可能物質における変色箇所を調べて
その変色箇所から上記空気吸い出し部分ないし経路を検
出するようにしたことを特徴とする自動車の車室内空気
吸い出し検出方法。(1) In a car equipped with an opening formed in the vehicle body and an opening/closing body that opens and closes the opening, a suction portion or part for sucking air out from the cabin to the outside of the cabin through the space between the opening/closing body and the vehicle body when the vehicle is running. A method for detecting a route, the method comprising applying a color-changing substance that changes color due to reaction with a color-changing gas to the outside of the vehicle along at least a sealing member disposed at the peripheral edge of the opening/closing body or the opening. , the above-mentioned color-changing gas is present in the vehicle interior, and in this state, an air flow is applied around the vehicle body to suck out the interior air to the outside of the vehicle interior, and then the discoloration location in the above-mentioned color-changeable substance is examined and its location is determined. A method for detecting air suction in a vehicle interior, characterized in that the air suction portion or route is detected from a discolored portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62012063A JPS63179229A (en) | 1987-01-20 | 1987-01-20 | Method for detecting sucking of air from inside of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62012063A JPS63179229A (en) | 1987-01-20 | 1987-01-20 | Method for detecting sucking of air from inside of automobile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63179229A true JPS63179229A (en) | 1988-07-23 |
Family
ID=11795142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62012063A Pending JPS63179229A (en) | 1987-01-20 | 1987-01-20 | Method for detecting sucking of air from inside of automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63179229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198916A (en) * | 2006-01-26 | 2007-08-09 | Dainippon Printing Co Ltd | Defect detection method of transparent gas barrier film |
| CN104330230A (en) * | 2014-10-21 | 2015-02-04 | 浙江海洋学院 | Segmented tightness testing method |
-
1987
- 1987-01-20 JP JP62012063A patent/JPS63179229A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007198916A (en) * | 2006-01-26 | 2007-08-09 | Dainippon Printing Co Ltd | Defect detection method of transparent gas barrier film |
| JP4570049B2 (en) * | 2006-01-26 | 2010-10-27 | 大日本印刷株式会社 | Defect detection method for transparent gas barrier film |
| CN104330230A (en) * | 2014-10-21 | 2015-02-04 | 浙江海洋学院 | Segmented tightness testing method |
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