JP3961877B2

JP3961877B2 - Piping seals

Info

Publication number: JP3961877B2
Application number: JP2002144066A
Authority: JP
Inventors: 七郎西田; 佳宜柳町; 嘉宏古本
Original assignee: Denso Corp; Toyota Auto Body Co Ltd
Current assignee: Denso Corp; Toyota Auto Body Co Ltd
Priority date: 2002-05-20
Filing date: 2002-05-20
Publication date: 2007-08-22
Anticipated expiration: 2022-05-20
Also published as: JP2003336768A

Description

【０００１】
【発明の属する技術分野】
本発明は配管類のシール具に関し、特に、車両ボデーに設けた開口を経て車外から引き込んだ配管類を車両ボデーの内面に沿うように屈曲させて車内へ延設する際に使用するシール具の構造改良に関する。
【０００２】
【従来の技術】
図４、図５に従来のシール具５を使用した車両クーラ配管３のシール構造の一例を示す。車両ボデーＢには矩形の開口２が設けられて、当該開口２を経て車外のコンプレッサから一対のクーラ配管３が引き込まれている。これらクーラ配管３は略直角に屈曲して車両ボデーＢ内面に沿って延び、車内に設けられたクーラ本体に至っている。各クーラ配管３は管体３１の外周に発泡ゴムの断熱チューブ３２を被せたものである。
【０００３】
シール具５は樹脂製で、その本体５１は、先細となった両端部にそれぞれ取付孔５１１を形成した長板体である。本体５１の板面は左右部が上方へ膨出湾曲させられて挿通部５２となっており、各挿通部５２は本体５１板面の幅方向中間位置で立ち上がって幅方向の側縁５１２へ開放している。挿通部５２の断面形状は図６に示すように略逆Ｕ字断面となっている。クーラ配管３を上方からシール具５で覆い、本体５１の取付孔５１１（図４）を車両ボデーＢの開口２近傍に設けた取付孔２１に一致させて車両ボデーＢに結合した状態で、図６に示すように、挿通部５２の略上半内周面が、上記開口２から車両ボデーＢ内に引き込まれたクーラ配管３の略上半外周面に密着する。
【０００４】
このようなシール具５では、略逆Ｕ字断面の挿通部５２内に位置するクーラ配管３の略下半外周に図６に示すような間隙Ｓ１，Ｓ２を生じることが避けられないため、完全なシールを行うように、図７に示すような一対のパッキン６１，６２をさらに使用している。パッキン６１，６２は側縁の左右位置に略Ｕ字形の切欠き６１１，６２１を形成した平面視で略Ｅ字形の板状体で、これらを対称位置に配してシール具１の下方に挿置する（図４）。この時、両パッキン６１，６２の対向する側縁を重ねて（図８）切欠き６１１，６２１でクーラ配管３の開口２貫通部を液密的に挟むようにすれば（図５）、開口２の周縁とクーラ配管３の開口貫通部がパッキン６１，６２によって完全にシールされ、車両ボデーＢ内への水浸入が防止される。
【０００５】
【発明が解決しようとする課題】
しかし、従来のシール具５によると、特別な形状のパッキン６１，６２を用意する必要がある上に、パッキン６１，６２の重なり量を調整する必要がある等のために組付け作業に手間取るという問題があった。
【０００６】
そこで本発明はこのような課題を解決するもので、パッキン形状を簡素化できるとともに、組付け作業性の向上を図ることができる配管類のシール具を提供することを目的とする。
【０００７】
【課題を解決するための手段】
上記目的を達成するために、本発明では、車両ボデー（Ｂ）に設けた開口（２）を経て車外から引き込んだ配管類（３）を車両ボデー（Ｂ）の内面に沿うように屈曲させて車内へ延設する際に使用する配管類（３）のシール具（１）であって、略平行な側壁を有する略逆Ｕ字断面の挿通部（１３）を備え、当該挿通部（１３）の略上半内周面が、車内へ引き入れられた配管類（３）の略上半外周面に接するように配管類（３）に覆着されて車両ボデー（Ｂ）に固定される本体（１１）と、当該本体（１１）に対して反転可能に結合され、反転状態で、配管類（３）の略下半外周に生じている挿通部（１３）内の間隙（Ｓ）を埋めるような形状に成形された隙埋め片（１２）とを具備し、本体（１１）と隙埋め片（１２）とは中央部を略逆Ｕ字形に湾曲させた薄肉のインテグラルヒンジ部（１４）によって結合されるとともに、本体（１１）、隙埋め片（１２）およびインテグラルヒンジ部（１４）は樹脂材によって一体成形されており、隙埋め片（１２）はその幅を、挿通部（１３）の下方開放口（１３１）の内幅に等しくしてある。ここで、「配管類」とは配管以外に配線等も含む意である。
【０００８】
本発明においては、配管類の略上半外周面を挿通部の略上半内周面に密接させ、続いて、隙埋め片を反転回動させて、挿通部内の配管類の略下半外周に生じている間隙を埋める。これにより、挿通部から配管類が車両ボデー内へ延出する部分において、挿通部の略上半内周と隙埋め片によって配管類の全周がシールされるから、配管類を車両ボデーの開口貫通部で全周シールする必要はない。したがって、パッキンは簡易な形状のものを使用することができるとともに、従来のようなパッキンの重なり量を調整する等の必要もないから組付け作業性も向上する。また、シール具本体とこれに反転可能に結合される隙埋め片を、樹脂の一体成形によって簡易に製造することができる。
【００１０】
なお、上記カッコ内の符号は、後述する実施形態に記載の具体的手段との対応関係を示すものである。
【００１１】
【発明の実施の形態】
図１に本発明のシール具１を使用した車両クーラ配管３のシール構造の一例を示す。シール具１は樹脂製の本体１１と隙埋め片１２を備えており、本体１１の基本構造は既に説明した従来のシール具と同様である。すなわち、本体１１は樹脂製で、両端部にそれぞれ取付孔１１１を形成した長板体である。本体１は板面がその左右部で上方へ膨出湾曲させられて挿通部１３となっており、各挿通部１３は本体１１板面の幅方向中間位置で立ち上がって幅方向の側縁１１２へ開放している。挿通部１３の断面形状は略逆Ｕ字断面となっており、開口２より車両ボテーＢ内に引き込まれて車両ボデーＢの内面に沿って屈曲するクーラ配管３を上方から覆うようになっている。
【００１２】
挿通部１３が開放する本体側縁１１２の両端部には、折り曲げ可能なように薄肉としたインテグラルヒンジ部（以下、単にヒンジ部という）１４が形成され、これらヒンジ部１４によってそれぞれ隙埋め片１２が結合されている。各ヒンジ部１４は本体１１に連続する樹脂材を一定幅で薄肉としてその中央部１４１を略逆Ｕ字形に湾曲させたもので（図３参照）、ヒンジ部１４を中心に隙埋め片１２を図３の矢印で示すように、これに近い側に位置する挿通部１３の下方開放口１３１を塞ぐように反転回動させることができる。図３は左側隙埋め片１２をこれに近い側の左側挿通部１３の下方開放口１３１内へ反転回動させてこれを塞いだ状態を示す。
【００１３】
各隙埋め片１２は、ヒンジ部１４に連続する樹脂材を厚肉の板体としてその中央部下面に隙埋め部１２１を突出形成したものである。隙埋め部１２１は、挿通部１３の下方開放口１３１の内幅に等しい幅で下方へ突出するとともに、その突出端面１２１ａは、挿通部１３の上半内周の半円断面に連続して円形断面を形成するような半円の凹面としてある。隙埋め片１２のヒンジ部１４から遠い側の端部下面には楔形の係止突起１２２が形成してあり、一方、本体１１の、左右の挿通部１３の間の板面には、反転した左右の各隙埋め片１２の係止突起１２２が挿入される係止孔１１３がそれぞれ形成されている。
【００１４】
このようなシール具を使用してクーラ配管３のシールを行なう場合には、車両ボデーＢの内面に沿って延びるクーラ配管３を、シール具１の挿通部１３内に挿入し、クーラ配管３の略上半外周面を挿通部１３の略上半内周面に密接させる。なお、以下は、左側挿通部１３内にクーラ配管３を挿入する場合について説明するが、右側挿通部１３に対しても同様の手順でクーラ配管２を挿入することができる。続いて、隙埋め片１２を、ヒンジ部１４を中心に反転回動させて、その隙埋め部１２１を下方開放口１３１より挿通部１３内に進入させて、クーラ配管３の略下半外周に生じている挿通部１３内の間隙Ｓを埋める（図３）。この時、隙埋め部１２１の突出端面１２１ａは、クーラ配管３の全周面のうち、挿通部１３に密接する略上半外周面を除いたクーラ配管３の略下半外周面に密接する（図３に示す状態）。この状態で隙埋め片１２の係止突起１２２を本体１１の係止孔１１３内に挿入して、隙埋め片１２を反転姿勢に保持させる。
【００１５】
この後、一定幅かつ一定厚の帯状パッキン４（図１）を、開口２の全周縁に沿うように屈曲させて車両ボデーＢに貼り付け、その上にクーラ配管３と一体のシール具１を載せて取付孔１１１，２１によってシール具１を車両ボデーＢに固定する。これにより、開口２の全周がパッキン４によってシールされるとともに、シール具本体１１の挿通部１３からクーラ配管３が車両ボデーＢ内へ延出する部分では、挿通部１３の略上半内周と隙埋め部１２１によってクーラ配管３の全周がシールされて、これにより車両ボデーＢ内への水浸入が完全に防止される。
【００１６】
本実施形態においては、パッキン２として帯状の簡易な形状のものを使用することができるとともに、従来のようなパッキン２の重なり量を調整する等の必要がないから組付け作業性も向上する。
【００１７】
【発明の効果】
以上のように、本発明の配管類のシール具によれば、パッキン形状を簡素化できるとともに、組付け作業性の向上を図ることができる。
【図面の簡単な説明】
【図１】本発明の一実施形態を示す、シール具を使用したクーラ配管の分解斜視図である。
【図２】シール具を使用したクーラ配管の斜視図である。
【図３】図２のIII−III線に沿った断面図である。
【図４】従来のシール具を使用したクーラ配管の分解斜視図である。
【図５】図４のV−V線に沿った断面図である。
【図６】図４のVI−VI線に沿った断面図である。
【図７】パッキンの斜視図である。
【図８】図４のVIII−VIII線に沿った断面図である。
【符号の説明】
１…シール具、１１…本体、１２…隙埋め片、１３…挿通部、１４…インテグラルヒンジ部、２…開口、３…クーラ配管、Ｂ…車両ボデー、Ｓ…間隙。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a piping sealing device, and more particularly to a sealing device used when a piping drawn from the outside of a vehicle through an opening provided in the vehicle body is bent along the inner surface of the vehicle body and extended into the vehicle. Concerning structural improvement.
[0002]
[Prior art]
FIG. 4 and FIG. 5 show an example of the seal structure of the vehicle cooler piping 3 using the conventional sealing tool 5. The vehicle body B is provided with a rectangular opening 2 through which a pair of cooler pipes 3 are drawn from a compressor outside the vehicle. These cooler pipes 3 are bent at a substantially right angle and extend along the inner surface of the vehicle body B to reach a cooler body provided in the vehicle. Each cooler pipe 3 is formed by covering the outer circumference of a pipe body 31 with a heat insulating tube 32 made of foam rubber.
[0003]
The sealing tool 5 is made of resin, and the main body 51 is a long plate body in which attachment holes 511 are formed in both tapered ends. The plate surface of the main body 51 has its left and right sides bulging upward to form insertion portions 52, and each insertion portion 52 rises at an intermediate position in the width direction of the plate surface of the main body 51 and opens to the side edge 512 in the width direction. is doing. The cross-sectional shape of the insertion part 52 is a substantially inverted U-shaped cross section as shown in FIG. The cooler pipe 3 is covered with the seal 5 from above, and the attachment hole 511 (FIG. 4) of the main body 51 is connected to the vehicle body B so as to coincide with the attachment hole 21 provided in the vicinity of the opening 2 of the vehicle body B. As shown in FIG. 6, the substantially upper half inner peripheral surface of the insertion portion 52 is in close contact with the substantially upper half outer peripheral surface of the cooler pipe 3 drawn into the vehicle body B from the opening 2.
[0004]
In such a seal 5, it is inevitable that gaps S 1 and S 2 as shown in FIG. 6 are formed on the substantially lower half outer periphery of the cooler pipe 3 positioned in the insertion portion 52 having a substantially inverted U-shaped cross section. A pair of packings 61 and 62 as shown in FIG. The packings 61 and 62 are substantially E-shaped plate-like bodies in a plan view in which substantially U-shaped cutouts 611 and 621 are formed at the left and right positions of the side edges, and these are arranged at symmetrical positions and inserted below the sealing device 1. (FIG. 4). At this time, if the opposing side edges of the packings 61 and 62 are overlapped (FIG. 8), the opening 2 through portion of the cooler pipe 3 is sandwiched liquid-tightly by the notches 611 and 621 (FIG. 5). 2 and the through-opening portion of the cooler pipe 3 are completely sealed by the packings 61 and 62, and water intrusion into the vehicle body B is prevented.
[0005]
[Problems to be solved by the invention]
However, according to the conventional sealing device 5, it is necessary to prepare packings 61 and 62 having a special shape and to adjust the overlapping amount of the packings 61 and 62. There was a problem.
[0006]
Therefore, the present invention solves such a problem, and an object of the present invention is to provide a piping sealing tool capable of simplifying the packing shape and improving the assembly workability.
[0007]
[Means for Solving the Problems]
In order to achieve the above object, in the present invention , the piping (3) drawn from the outside of the vehicle through the opening (2) provided in the vehicle body (B) is bent along the inner surface of the vehicle body (B). a piping used when extending into the vehicle seal fitting (3) (1), with the insertion portion of the generally inverted U-shaped cross-section (13) having substantially parallel side walls, said insertion portion (13) The main body (which is covered with the piping (3) and fixed to the vehicle body (B) so that the substantially upper half inner circumferential surface of the piping is in contact with the substantially upper half outer circumferential surface of the piping (3) drawn into the vehicle ( 11) and the main body (11) so as to be reversible, and in a reversed state, the gap (S) in the insertion portion (13) generated on the substantially lower half outer periphery of the piping (3) is filled. comprising such has been chink buried pieces molded into a shape and (12), a substantially inverted U-shaped central portion and the main body (11) gap filling piece (12) And the main body (11), the gap filling piece (12) and the integral hinge part (14) are integrally formed of a resin material. The width of the piece (12) is equal to the inner width of the lower opening (131) of the insertion portion (13) . Here, “piping” means wiring and the like in addition to piping.
[0008]
In the present invention , the substantially upper half outer circumferential surface of the piping is brought into close contact with the substantially upper half inner circumferential surface of the insertion portion, and then the gap filling piece is rotated in an inverted manner so as to substantially rotate the lower half outer periphery of the piping in the insertion portion. To fill the gaps that occur. As a result, in the portion where the piping extends from the insertion portion into the vehicle body, the entire upper circumference of the insertion portion and the entire circumference of the piping are sealed by the gap filling piece, so that the piping is opened to the vehicle body. There is no need to seal all around the penetration. Therefore, a packing having a simple shape can be used, and the assembly workability is improved because it is not necessary to adjust the overlapping amount of packing as in the prior art. Moreover, the sealing tool main body and the gap filling piece reversibly coupled thereto can be easily manufactured by integral molding of resin.
[0010]
In addition, the code | symbol in the said parenthesis shows the correspondence with the specific means as described in embodiment mentioned later.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 shows an example of a seal structure of a vehicle cooler pipe 3 using the seal tool 1 of the present invention. The sealing device 1 includes a resin main body 11 and a gap filling piece 12, and the basic structure of the main body 11 is the same as that of the conventional sealing device already described. That is, the main body 11 is a long plate body made of resin and having attachment holes 111 formed at both ends. The main body 1 has an insertion portion 13 with the plate surface bulging upward at the left and right sides thereof, and each insertion portion 13 rises at an intermediate position in the width direction of the plate surface of the main body 11 to the side edge 112 in the width direction. It is open. The cross-sectional shape of the insertion portion 13 has a substantially inverted U-shaped cross section, and covers the cooler pipe 3 that is drawn into the vehicle body B through the opening 2 and bent along the inner surface of the vehicle body B from above. .
[0012]
Integral hinge portions (hereinafter simply referred to as hinge portions) 14 that are thin so as to be bent are formed at both ends of the main body side edge 112 where the insertion portion 13 is opened. 12 are connected. Each hinge portion 14 is formed by thinning a resin material continuous to the main body 11 with a constant width and curving the central portion 141 in a substantially inverted U shape (see FIG. 3), and the gap filling piece 12 is formed around the hinge portion 14. As shown by the arrow in FIG. 3, it can be reversed and rotated so as to close the lower opening 131 of the insertion portion 13 located on the side close to this. FIG. 3 shows a state in which the left gap filling piece 12 is reversed and rotated into the lower opening 131 of the left insertion portion 13 on the side close to the left gap filling piece 12.
[0013]
Each gap filling piece 12 is formed by forming a gap filling part 121 on the lower surface of the center part of the resin material continuous to the hinge part 14 as a thick plate. The gap filling portion 121 protrudes downward with a width equal to the inner width of the lower opening 131 of the insertion portion 13, and the protruding end surface 121 a is circular continuously from the semicircular cross section of the upper half inner periphery of the insertion portion 13. It is a semicircular concave surface that forms a cross section. A wedge-shaped locking projection 122 is formed on the lower surface of the end portion of the gap filling piece 12 far from the hinge portion 14. On the other hand, the plate surface between the left and right insertion portions 13 of the main body 11 is inverted. Locking holes 113 into which the locking protrusions 122 of the left and right gap filling pieces 12 are inserted are respectively formed.
[0014]
When sealing the cooler pipe 3 using such a seal tool, the cooler pipe 3 extending along the inner surface of the vehicle body B is inserted into the insertion portion 13 of the seal tool 1, and the cooler pipe 3 The substantially upper half outer peripheral surface is brought into close contact with the substantially upper half inner peripheral surface of the insertion portion 13. In addition, although the case where the cooler piping 3 is inserted in the left side insertion part 13 below is demonstrated, the cooler piping 2 can be inserted also with respect to the right side insertion part 13 in the same procedure. Subsequently, the gap filling piece 12 is turned around the hinge portion 14 so that the gap filling portion 121 enters the insertion portion 13 through the lower opening 131, and is placed on the substantially lower half outer periphery of the cooler pipe 3. The gap S in the inserted portion 13 is filled (FIG. 3). At this time, the protruding end surface 121a of the gap filling portion 121 is in close contact with the substantially lower half outer peripheral surface of the cooler pipe 3 excluding the substantially upper half outer peripheral surface in close contact with the insertion portion 13 among the entire peripheral surface of the cooler pipe 3 ( (The state shown in FIG. 3). In this state, the locking protrusion 122 of the gap filling piece 12 is inserted into the locking hole 113 of the main body 11 to hold the gap filling piece 12 in the inverted posture.
[0015]
Thereafter, a belt-like packing 4 (FIG. 1) having a constant width and a constant thickness is bent along the entire periphery of the opening 2 and attached to the vehicle body B, and a sealing device 1 integrated with the cooler pipe 3 is provided thereon. The sealing tool 1 is fixed to the vehicle body B by the mounting holes 111 and 21. As a result, the entire circumference of the opening 2 is sealed by the packing 4, and in the portion where the cooler pipe 3 extends into the vehicle body B from the insertion portion 13 of the seal body 11, the substantially upper half inner circumference of the insertion portion 13. The entire periphery of the cooler pipe 3 is sealed by the gap filling portion 121, thereby preventing water from entering the vehicle body B completely.
[0016]
In the present embodiment, a simple band-like shape can be used as the packing 2, and the assembly workability is improved because there is no need to adjust the overlapping amount of the packing 2 as in the prior art.
[0017]
【The invention's effect】
As described above, according to the piping sealing tool of the present invention, the packing shape can be simplified and the assembly workability can be improved.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a cooler pipe using a sealing device according to an embodiment of the present invention.
FIG. 2 is a perspective view of a cooler pipe using a sealing tool.
3 is a cross-sectional view taken along line III-III in FIG.
FIG. 4 is an exploded perspective view of a cooler pipe using a conventional sealing tool.
5 is a cross-sectional view taken along line VV in FIG.
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a perspective view of a packing.
8 is a cross-sectional view taken along line VIII-VIII in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Sealing tool, 11 ... Main body, 12 ... Gap filling piece, 13 ... Insertion part, 14 ... Integral hinge part, 2 ... Opening, 3 ... Cooler piping, B ... Vehicle body, S ... Gap.

Claims

A seal fitting for pipes to be used for extending into the vehicle by bending along the pipes has been drawn from outside the vehicle through an opening provided in the vehicle body on the inner surface of the vehicle body, substantially parallel side walls includes an insertion portion of the generally inverted U-shaped cross-section with a substantially upper half inner peripheral surface of the insertion portion, is Kutsugaechaku to the pipes in contact with the substantially upper half outer peripheral surface of the pipes which are drawn into the vehicle A main body fixed to the vehicle body and reversibly coupled to the main body, and in a reversed state, formed into a shape that fills a gap in the insertion portion that is generated on the substantially lower half outer periphery of the piping. A gap filling piece, and the main body and the gap filling piece are coupled by a thin-walled integral hinge portion having a central portion curved in a substantially inverted U shape, and the body, the gap filling piece, and the integral hinge The part is integrally molded with resin material Cage, the gap filling piece width, seal fitting of pipes which are equal to the inner width of the lower mouth opening of the insertion portion.