JP2003056766A - Packing of drain pipe joint - Google Patents
Packing of drain pipe jointInfo
- Publication number
- JP2003056766A JP2003056766A JP2001242477A JP2001242477A JP2003056766A JP 2003056766 A JP2003056766 A JP 2003056766A JP 2001242477 A JP2001242477 A JP 2001242477A JP 2001242477 A JP2001242477 A JP 2001242477A JP 2003056766 A JP2003056766 A JP 2003056766A
- Authority
- JP
- Japan
- Prior art keywords
- packing
- auxiliary seal
- peripheral surface
- socket
- inner peripheral
- 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
Landscapes
- Sink And Installation For Waste Water (AREA)
- Joints With Sleeves (AREA)
Abstract
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】この発明は、例えば排水立て
管に横枝管を接続する際に用いる排水管継手の例えば立
て管接続用の受け口に装着するパッキンに関する。
【０００２】
【従来の技術】例えば、マンション等の高層建造物の排
水管経路において、排水立て管に各階の横枝管を接続す
るために、該排水立て管の各階位置には排水管継手が介
装される。図１３は、この排水管継手周辺の施工例を示
している。図中符号１は排水管継手、符号２は上流側の
立て管、符号３は下流側の立て管、符号４は横枝管、符
号５は大便器をそれぞれ示している。又、図中符号Ｃは
各階を区画するコンクリートスラブを示している。上記
排水管継手１は、胴部１ａの上部に上流側の立て管２を
接続するための上部受け口１ｂを有し、胴部１ａの周囲
に横枝管４を接続するための受け口１ｃ〜１ｃを有して
いる。横枝管受け口１ｃについては、胴部１ａの周囲に
必要数設けたものが適用される。
【０００３】このような排水管継手１において、上部受
け口１ｂに対して上流側の立て管２を接続する形態とし
て、従来より略円筒形状の本体部を有し、その内周側に
立て管２を単に挿入するのみで該立て管２が上部受け口
１ｂに対して水密かつ気密に接続されるワンタッチ形式
のパッキン（ワンタッチパッキン）を用いる技術が公知
である。このパッキン１０は、図１４に示すように上部
受け口１ｂの内周側に沿って密着される円筒形状の本体
部１１と、該本体部１１の内周側に張り出し状に設けた
複数のシール片１２〜１２を有し、本体部１１の内周側
に立て管２を挿入して該立て管２の周面に各シール片１
２〜１２を弾性的に押圧させることにより該立て管２を
水密かつ気密に接続する構成となっている。
【０００４】
【発明が解決しようとする課題】このようなワンタッチ
形式のパッキン１０には、従来次のような問題があっ
た。すなわち、図１５に示すように上部受け口１ｂに装
着したパッキン１０の内周側に挿入した上流側の立て管
２が、該上部受け口１ｂひいては当該パッキン１０の管
軸に対して傾くと、これに伴って当該パッキン１０が傾
いて上部受け口１ｂの内周面に均一に押圧されなくな
り、その結果該パッキン１０には上部受け口１ｂの内周
面に対して密着度が高くなる部分（高密着部Ａ）と、逆
に密着度が低くなる部分（低密着部Ｂ）が発生する。図
１５に示した状態は、立て管２が右側に傾いた状態であ
り、この状態では、パッキン１０の管軸方向について本
体部の上側半分の範囲では右側が高密着部Ａとなり、左
側が低密着部Ｂとなる一方、下側半分の範囲では逆に右
側が低密着部Ｂとなり、左側が高密着部Ａとなってい
る。
【０００５】上側の低密着部Ｂと下側の低密着部Ｂは、
図において破線で示すように螺旋状に繋がって、当該パ
ッキンの上部受け口の内周面に対するシール性（水密
性、気密性）が低下した部分がその一端側から他端側に
連続して形成されることとなり、その結果、当該管継手
内部の臭気あるいは満水試験時の試験水等がこの低密着
部Ｂ，Ｂを経て外部に漏れるおそれがあった。従来、こ
の問題を解消するために、弾性を備えた接着剤を本体部
１１の外周に塗布して当該パッキン１０を上部受け口１
ｂに装着することにより、接続した立て管２が傾いた場
合であっても、上記低密着部Ｂが発生しないようにして
いた。本発明は、従来のように接着剤を塗布する手間を
掛けることなく、接続した立て管が受け口に対して傾い
ている場合であっても、受け口に対して高いシール性を
確保できるパッキンを提供することを目的とする。
【０００６】
【課題を解決するための手段】このため、本発明は、前
記請求項に記載した構成のパッキンとした。請求項１記
載のパッキンによれば、本体部の外周面に、補助シール
部が管軸方向ほぼ中央となる位置に沿って全周にわたっ
て形成されているので、接続した管が受け口に対して傾
くと、当該パッキンは補助シール部を中心にして傾く
（傾動支点としての機能）。このため、補助シール部
は、当該パッキンの傾きに関係なく受け口内周面に対し
て全周にわたって一定の押圧状態に保持され、ひいては
高密着部（受け口内周面に対する密着度が高い部分）と
低密着部（受け口内周面に対する密着度が低下した部
分）の境界として機能する。
【０００７】このことから、当該パッキンが傾くことに
より発生する螺旋状の低密着部がこの補助シール部によ
って寸断されて途中で途切れるため、当該パッキンの受
け口に対するシール性を維持することができ、これによ
り異臭あるいは水漏れの発生を未然に防ぐことができ
る。なお、この明細書において、補助シール部の位置に
関して管軸方向ほぼ中央とは、挿入される管の挿入代に
ついて管軸方向ほぼ中央をいい、管が傾いた状態におい
て、受け口に対する密着度が変化しない部位、すなわち
高密着部と低密着部の境界となる部位をいう。
【０００８】
【発明の効果】この発明に係るパッキンによれば、従来
のようにパッキン本体の外周面に接着剤を塗布して当該
パッキンを受け口に接着する手間を掛けることなく、接
続した立て管が受け口に対して傾いて接続された場合あ
るいは振動等により傾いた場合であっても、受け口に対
して高いシール性を確保できる。
【０００９】
【発明の実施の形態】次に、本発明の実施形態を図１〜
図１２に基づいて説明する。図１および図２には本実施
形態のパッキン２０が単独で示され、図３および図４に
は、このパッキン２０を排水管継手１の上部受け口１ｂ
に装着した状態が示されている。本実施形態において、
管継手１は従来構成と同様であるので説明を省略する。
このパッキン２０は前記ワンタッチ形式のもので、略円
筒形状の本体部２１と、該本体部２１の内周面に全周に
わたって張り出し状に形成した複数（図では２つ）のシ
ール片２２〜２２と、本体部２１の奥側端部（図におい
て下端部）に内周側に張り出し状に形成した管端係止部
２３を有している。
【００１０】図３および図４に示すように本体部２１
は、受け口１ｂの内周面に沿って装着される。本体部２
１の口元外周側には口元係止部２１ａが全周にわたって
側方へ張り出し状に形成されており、この口元係止部２
１ａが受け口１ｂの口元に形成した凹部１ｅにはめ込ま
れることによって、当該パッキン２０の奥側への押し込
みが防止される。図４に示すように３枚のシール片２２
〜２２の内周側に上流側の立て管２が挿入されて、該立
て管２の外周面に３枚のシール片２２〜２２が弾性押圧
され、これにより該立て管２の外周側が水密且つ気密に
シールされる。管端係止部２３は、断面コ字型の厚肉に
形成されている。図４に示すようにこの管端係止部２３
には接続した立て管２が受け口１ｂの底縁１ｄに直接接
触しないようにするための緩衝材としての機能を有して
いる。また、この管端係止部２３により立て管２の受け
口１ｂに対する挿入代が規制されるとともに、立て管２
が底縁１ｄに直接接触することによる異音の発生が防止
される。
【００１１】次に、図１および図２に示すように本体部
２１の外周面には、断面半円形の補助シール部２５が全
周にわたって形成されている。この補助シール部２５
は、管軸方向（図１〜図４において上下方向）について
ほぼ中央となる位置に沿って形成されている。ここで、
管軸方向についてほぼ中央となる位置とは、図４に示す
ように立て管２のパッキン２０に対する挿入代Ｓのほぼ
中央となる位置をいう。このように設けた補助シール部
２５によれば、図５に示すように立て管２が傾いた場合
あるいは傾いた状態で接続された場合には、当該パッキ
ン１０が補助シール部２５を中心にして傾くことから、
該補助シール部２５の受け口内周面に対する密着度はほ
ぼ同程度に維持され、従って該補助シール部２５よりも
下側の低密着部Ｂと上側の低密着部Ｂが該補助シール部
２５により遮断される。このため、従来のように当該パ
ッキン１０を受け口１ｂに対して接着しなくても、パッ
キン１０の受け口１ｂに対するシール性が良好に確保さ
れ、従って当該管継手１内部の臭気あるいは排水の飛沫
がパッキン２０と受け口内周面との間を経て外部に漏れ
ることは防止される。
【００１２】以上例示した実施形態には種々変更を加え
ることができる。例えば、補助シール部２５の断面形状
について半円形のものを例示したが、図６に示すように
中空部２６ａを全周若しくは一部に有する断面半円形の
補助シール部２６としてもよい。この補助シール部２６
によれば、受け口内周面に対する密着度を一層高めるこ
とができる。また、図７に示すように断面半円形の先端
に微圧対策用の凸部２７ａを全周にわたって設けた補助
シール部２７としてもよい。さらに、図８〜図１１には
他の断面形状を有する補助シール部２８〜３１が示され
ている。
【００１３】さらに、以上説明した補助シール部２５〜
３１は本体部１１に一体に形成されたものを例示した
が、例えば図１２（Ａ）（Ｂ）に示すように本体部１１
とは別体で用意した補助シール部３２，３３を、本体部
１１の外周面に設けた保持部１１ａ，１１ｂに嵌め込ん
で取り付ける構成としてもよい。図１２（Ａ）は、本体
部１１の外周面に断面半円形の溝形状をなす保持部１１
ａを設け、この保持部１１ａに沿って断面円形の円環形
状をなす補助シール部３２を嵌め込んで取り付ける構成
を示している。また、図１２（Ｂ）は、本体部１１の外
周面に断面矩形の溝形状を有する保持部１１ｂを設け、
この保持部１１ｂに沿って断面蒲鉾形の補助シール部３
３を嵌め込んで取り付ける構成を示している。上記補助
シール部３２，３３の硬度を本体部１１の硬度に比して
変化させることができる。例えば、補助シール部３２，
３３を本体部１１よりも柔らかいあるいは硬いゴムを素
材として製作してもよい。このことから、補助シール部
３２，３３を金属製のリングあるいはプラスチック製の
リングに置き換えてもよい。また、補助シール部３２，
３３は保持部１１ａ，１１ｂに単に嵌め込んで固定する
構成の他、接着してもよい。接着する場合は、上記保持
部１１ａ，１１ｂを省略してもよい。
【００１４】さらに、例示した実施形態では、上流側の
立て管２を接続するための上部受け口１ｂに装着するパ
ッキン１０を例示したが、本発明は横枝管受け口１ｃに
装着するパッキンに適用することもでき、立て管用の場
合と同様の作用効果を得ることができる。また、立て管
に横枝管を接続するための排水管継手１を例示して説明
したが、例えばエルボ型のいわゆる脚部継手あるいはス
トレート型等の一般的な排水管継手あるいは差し込み形
の排水用鋳鉄管および異形管に用いるパッキンに適用で
きることは言うまでもない。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packing, for example, mounted on a drainage pipe joint used for connecting a horizontal branch pipe to a drainage stack. About. 2. Description of the Related Art For example, in a drain pipe route of a high-rise building such as an apartment building, a drain pipe joint is provided at each floor position of the drain stack in order to connect a horizontal branch pipe to the drain stack. Interposed. FIG. 13 shows an example of construction around the drainage pipe joint. In the figure, reference numeral 1 denotes a drainage pipe joint, reference numeral 2 denotes an upstream standing pipe, reference numeral 3 denotes a downstream standing pipe, reference numeral 4 denotes a horizontal branch pipe, and reference numeral 5 denotes a toilet bowl. In addition, reference numeral C in the figure indicates a concrete slab that partitions each floor. The drainage pipe coupling 1 has an upper receiving port 1b for connecting an upstream standing pipe 2 at an upper portion of a body 1a, and receiving ports 1c to 1c for connecting a horizontal branch pipe 4 around the body 1a. have. As for the horizontal branch pipe receiving port 1c, the one provided in a required number around the trunk portion 1a is applied. [0003] In such a drainage pipe joint 1, as a form for connecting the upstream standpipe 2 to the upper receiving port 1b, the drainpipe joint 1 has a substantially cylindrical main body, and the standpipe 2 is provided on the inner peripheral side thereof. There is known a technique of using a one-touch packing (one-touch packing) in which the standpipe 2 is connected to the upper receiving port 1b in a water-tight and air-tight manner simply by inserting the packing. As shown in FIG. 14, the packing 10 has a cylindrical main body 11 that is in close contact with the inner peripheral side of the upper receiving port 1b, and a plurality of sealing pieces provided in an overhanging manner on the inner peripheral side of the main body 11. 12 to 12, and a standpipe 2 is inserted into the inner peripheral side of the main body 11, and each seal piece 1 is attached to the peripheral surface of the standpipe 2.
The standing pipe 2 is connected in a watertight and airtight manner by elastically pressing 2-12. [0004] Such a one-touch type packing 10 has conventionally had the following problems. That is, as shown in FIG. 15, when the upstream standing pipe 2 inserted into the inner peripheral side of the packing 10 attached to the upper receiving port 1 b is inclined with respect to the upper receiving port 1 b and thus the pipe axis of the packing 10, Accordingly, the packing 10 is inclined and is not uniformly pressed against the inner peripheral surface of the upper receiving port 1b. As a result, the packing 10 has a portion where the degree of adhesion to the inner peripheral surface of the upper receiving port 1b is high (the high adhesion portion A). ), On the contrary, a portion where the degree of adhesion is low (low adhesion part B) occurs. The state shown in FIG. 15 is a state in which the standpipe 2 is inclined rightward. In this state, the right side becomes the high adhesion part A and the left side becomes low in the upper half range of the main body in the pipe axis direction of the packing 10. On the other hand, in the lower half range, the right side is the low adhesion part B and the left side is the high adhesion part A in the lower half range. [0005] The upper low adhesion portion B and the lower low adhesion portion B are
As shown by a broken line in the figure, a portion where the sealing property (water tightness, air tightness) with respect to the inner peripheral surface of the upper receiving port of the packing is reduced is formed continuously from one end side to the other end side. As a result, the odor inside the pipe joint or the test water at the time of the water-full test may leak to the outside through the low adhesion portions B. Conventionally, in order to solve this problem, an adhesive having elasticity is applied to the outer periphery of the main body 11 and the packing 10 is attached to the upper receptacle 1.
b, the low adhesion portion B is prevented from being generated even when the connected standpipe 2 is inclined. The present invention provides a packing that can ensure high sealing performance with respect to a receptacle, even when the connected standing pipe is inclined with respect to the receptacle, without taking the trouble of applying an adhesive as in the related art. The purpose is to do. [0006] For this purpose, the present invention provides a packing having the structure described in the claims. According to the packing according to the first aspect, since the auxiliary seal portion is formed on the outer peripheral surface of the main body portion along the position substantially at the center in the tube axis direction over the entire periphery, the connected tube is inclined with respect to the receiving port. Then, the packing tilts around the auxiliary seal portion (function as a tilting fulcrum). For this reason, the auxiliary seal portion is held in a constant pressing state over the entire periphery of the receptacle inner peripheral surface regardless of the inclination of the packing, and is thus formed with a high adhesion portion (a portion having a high degree of adhesion to the receptacle internal peripheral surface). It functions as a boundary of a low adhesion portion (a portion where the degree of adhesion to the inner peripheral surface of the receptacle is reduced). [0007] From this, since the spiral low contact portion generated by the inclination of the packing is cut off by the auxiliary seal portion and interrupted on the way, it is possible to maintain the sealing performance of the packing with respect to the receiving port. Thereby, generation of an unusual odor or water leakage can be prevented. In this specification, "substantially the center of the auxiliary seal portion in the axial direction of the tube" means substantially the center of the insertion margin of the inserted tube in the axial direction of the tube. It means a part that does not, that is, a part that is a boundary between the high adhesion part and the low adhesion part. According to the packing according to the present invention, the standing pipe is connected without applying the time required for applying the adhesive to the outer peripheral surface of the packing body and bonding the packing to the receiving port as in the prior art. Even if is inclined with respect to the receptacle or is inclined by vibration or the like, high sealing performance can be ensured with respect to the receptacle. Next, an embodiment of the present invention will be described with reference to FIGS.
A description will be given based on FIG. FIGS. 1 and 2 show the packing 20 of the present embodiment alone, and FIGS. 3 and 4 show the packing 20 in the upper receptacle 1 b of the drainage pipe joint 1.
Is shown. In this embodiment,
The description of the pipe joint 1 is omitted because it is the same as the conventional configuration.
The packing 20 is of the one-touch type, and has a substantially cylindrical main body 21 and a plurality (two in FIG. 2) of sealing pieces 22 to 22 formed overhanging the entire inner peripheral surface of the main body 21. And a tube end locking portion 23 formed in a protruding shape on the inner peripheral side at a rear end portion (lower end portion in the figure) of the main body portion 21. As shown in FIG. 3 and FIG.
Is mounted along the inner peripheral surface of the receptacle 1b. Main unit 2
A mouth engaging portion 21a is formed on the outer peripheral side of the mouth 1 so as to protrude sideways over the entire circumference.
The packing 1a is prevented from being pushed inward by inserting the packing 1a into the recess 1e formed at the mouth of the receiving port 1b. As shown in FIG.
22 is inserted into the inner peripheral side of the upright tube 22 and the three seal pieces 22 to 22 are elastically pressed against the outer peripheral surface of the upright tube 2, whereby the outer peripheral side of the upright tube 2 is watertight and Hermetically sealed. The tube end locking portion 23 is formed to have a thick U-shaped cross section. As shown in FIG.
Has a function as a cushioning material for preventing the connected standpipe 2 from directly contacting the bottom edge 1d of the receptacle 1b. The insertion margin of the standing tube 2 into the receptacle 1b is regulated by the tube end locking portion 23, and the standing tube 2
Is prevented from generating abnormal noise due to direct contact with the bottom edge 1d. Next, as shown in FIGS. 1 and 2, on the outer peripheral surface of the main body 21, an auxiliary seal portion 25 having a semicircular cross section is formed over the entire circumference. This auxiliary seal portion 25
Are formed along a position substantially at the center in the tube axis direction (vertical direction in FIGS. 1 to 4). here,
The position substantially at the center in the tube axis direction refers to a position substantially at the center of the insertion margin S of the standpipe 2 into the packing 20 as shown in FIG. According to the auxiliary seal portion 25 provided in this way, when the standing pipe 2 is inclined or connected in an inclined state as shown in FIG. From leaning,
The degree of adhesion of the auxiliary seal portion 25 to the inner peripheral surface of the receiving port is maintained at substantially the same level. Therefore, the low adhesion portion B below the auxiliary seal portion 25 and the low adhesion portion B above the auxiliary seal portion 25 are formed by the auxiliary seal portion 25. Will be shut off. For this reason, even if the packing 10 is not bonded to the receiving port 1b as in the prior art, the sealing property of the packing 10 to the receiving port 1b is sufficiently ensured. Leakage to the outside through the space between 20 and the inner peripheral surface of the receptacle is prevented. Various modifications can be made to the embodiment exemplified above. For example, although the auxiliary seal portion 25 has a semicircular cross-sectional shape as an example, the auxiliary seal portion 26 may have a semicircular cross-sectional shape having a hollow portion 26a on the entire circumference or a part as shown in FIG. This auxiliary seal portion 26
According to this, the degree of adhesion to the inner peripheral surface of the receptacle can be further increased. Further, as shown in FIG. 7, an auxiliary seal portion 27 having a semicircular cross-sectional tip provided with a convex portion 27a for countermeasure against minute pressure over the entire circumference may be used. 8 to 11 show auxiliary seal portions 28 to 31 having other cross-sectional shapes. Further, the auxiliary seal portions 25 to
Reference numeral 31 exemplifies one integrally formed with the main body 11, but, for example, as shown in FIGS.
Alternatively, auxiliary seal portions 32 and 33 separately prepared may be fitted and attached to holding portions 11a and 11b provided on the outer peripheral surface of main body portion 11. FIG. 12A shows a holding portion 11 having a semicircular groove shape on the outer peripheral surface of the main body portion 11.
a is provided, and an auxiliary seal portion 32 having an annular shape with a circular cross section is fitted and attached along the holding portion 11a. FIG. 12B shows a case where a holding portion 11b having a rectangular cross-sectional groove shape is provided on the outer peripheral surface of the main body portion 11,
Along the holding portion 11b, the auxiliary seal portion 3 having a semicylindrical section is provided.
3 shows a configuration in which 3 is fitted and attached. The hardness of the auxiliary seal portions 32 and 33 can be changed as compared with the hardness of the main body portion 11. For example, the auxiliary seal portion 32,
33 may be made of rubber that is softer or harder than the main body 11. For this reason, the auxiliary seal portions 32 and 33 may be replaced with a metal ring or a plastic ring. In addition, the auxiliary seal portion 32,
33 may be bonded to the holding portions 11a and 11b instead of being simply fitted and fixed. In the case of bonding, the holding portions 11a and 11b may be omitted. Furthermore, in the illustrated embodiment, the packing 10 mounted on the upper receiving port 1b for connecting the upright stand 2 is illustrated, but the present invention is applied to the packing mounted on the horizontal branch receiving port 1c. It is also possible to obtain the same operation and effect as in the case of a standing pipe. Also, the drainage pipe joint 1 for connecting the horizontal branch pipe to the standpipe has been described as an example. However, for example, a general drainage pipe joint such as an elbow type or a straight type, or a plug-in type drainage pipe joint is used. It goes without saying that the present invention can be applied to packing used for cast iron pipes and deformed pipes.
【図面の簡単な説明】
【図１】例示した実施形態のパッキンの側面図である。
【図２】例示した実施形態のパッキンの縦断面図であ
る。
【図３】例示した実施形態のパッキンを受け口に装着し
た状態を示す縦断面図である。本図は、立て管を接続し
ていない段階を示している。
【図４】例示した実施形態のパッキンを受け口に装着
し、その内周側に立て管を接続した状態を示す縦断面図
である。
【図５】本願発明のパッキンを用いて立て管を接続した
上部受け口の縦断面図であって、立て管が傾いた状態を
示す図である。
【図６】別態様の補助シール部（中空部付き補助シール
部）の縦断面図である。
【図７】別態様の補助シール部（微圧対策用凸部付き補
助シール部）の縦断面図である。
【図８】別形態の補助シール部の縦断面図である。
【図９】別態様の補助シール部の縦断面図である。
【図１０】別態様の補助シール部の縦断面図である。
【図１１】別形態の補助シール部の縦断面図である。
【図１２】別形態の補助シール部の縦断面図である。
【図１３】排水管継手を介して立て管に横枝管を接続し
た配管施工例を示す側面図である。
【図１４】図１３の（１４）部の縦断面図である。本図
は、従来のワンタッチパッキンを用いて上部受け口に立
て管を接続した状態を示している。
【図１５】従来のワンタッチパッキンを用いて上部受け
口に立て管を接続した状態であって、立て管が傾いた状
態を示す縦断面図である。
【符号の説明】
１…排水管継手、１ｂ…上部受け口
２…上流側の立て管
１０…従来のパッキン
２０…パッキン
２１…本体部
２２…シール片
２５…補助シール部
２６〜３１…別形態の補助シール部
Ａ…高密着部
Ｂ…低密着部BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a packing according to an exemplary embodiment. FIG. 2 is a longitudinal sectional view of the packing of the illustrated embodiment. FIG. 3 is a vertical cross-sectional view showing a state where the packing of the illustrated embodiment is attached to a receiving port. This figure shows a stage in which no standpipe is connected. FIG. 4 is a longitudinal sectional view showing a state in which the packing of the exemplified embodiment is attached to a receiving port, and a standing pipe is connected to an inner peripheral side thereof. FIG. 5 is a longitudinal sectional view of an upper receptacle to which a standpipe is connected using the packing of the present invention, showing a state in which the standpipe is inclined. FIG. 6 is a longitudinal sectional view of another embodiment of an auxiliary seal portion (an auxiliary seal portion with a hollow portion). FIG. 7 is a longitudinal sectional view of another embodiment of an auxiliary seal portion (auxiliary seal portion with a convex portion for countermeasure against minute pressure). FIG. 8 is a longitudinal sectional view of another form of the auxiliary seal portion. FIG. 9 is a longitudinal sectional view of another embodiment of the auxiliary seal portion. FIG. 10 is a longitudinal sectional view of another embodiment of the auxiliary seal portion. FIG. 11 is a longitudinal sectional view of an auxiliary seal portion of another embodiment. FIG. 12 is a longitudinal sectional view of an auxiliary seal portion of another embodiment. FIG. 13 is a side view showing a piping construction example in which a horizontal branch pipe is connected to a standpipe via a drainage pipe joint. 14 is a longitudinal sectional view of a portion (14) in FIG. This figure shows a state in which a standing pipe is connected to an upper receptacle using a conventional one-touch packing. FIG. 15 is a vertical cross-sectional view showing a state in which a standpipe is connected to an upper receptacle using a conventional one-touch packing, and in which the standpipe is inclined. DESCRIPTION OF SYMBOLS 1 ... Drainage pipe joint, 1b ... Upper receptacle 2 ... Upright standing pipe 10 ... Conventional packing 20 ... Packing 21 ... Body part 22 ... Seal piece 25 ... Auxiliary seal parts 26-31 ... Other forms Auxiliary seal part A: high adhesion part B: low adhesion part
Claims (1)
に挿入した管との間に介装されるパッキンであって、略
円筒形状をなす本体部を有し、該本体部の外周面に、前
記受け口の内周面に押圧される補助シール部を管軸方向
ほぼ中央に沿って全周にわたって膨出形成したことを特
徴とするパッキン。Claims: 1. A packing interposed between a receiving port of a drainage pipe joint and a pipe inserted into an inner peripheral side of the receiving port, and having a substantially cylindrical main body. And a packing formed on the outer peripheral surface of the main body portion so as to protrude over the entire periphery along the substantially central portion in the tube axis direction, the auxiliary seal portion being pressed against the inner peripheral surface of the receptacle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001242477A JP2003056766A (en) | 2001-08-09 | 2001-08-09 | Packing of drain pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001242477A JP2003056766A (en) | 2001-08-09 | 2001-08-09 | Packing of drain pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003056766A true JP2003056766A (en) | 2003-02-26 |
Family
ID=19072741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001242477A Pending JP2003056766A (en) | 2001-08-09 | 2001-08-09 | Packing of drain pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003056766A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291630A (en) * | 2006-09-29 | 2008-12-04 | Noriatsu Kojima | Drainage equipment and renewal method of its drainage equipment |
| JP2008308852A (en) * | 2007-06-13 | 2008-12-25 | Daikyo Nishikawa Kk | Seal structure of drain hole of washbowl |
| JP2009046848A (en) * | 2007-08-17 | 2009-03-05 | Noriatsu Kojima | Socket, and drain pipe facility replacing method |
| JP2009079386A (en) * | 2007-09-25 | 2009-04-16 | Maruichi Kk | Connection structure |
| JP2009077820A (en) * | 2007-09-25 | 2009-04-16 | Panasonic Electric Works Co Ltd | Attaching structure of mouthpiece of overflow pipe |
| KR102066746B1 (en) * | 2019-01-30 | 2020-01-15 | 김시우 | Packing for synthetic resin pipes |
-
2001
- 2001-08-09 JP JP2001242477A patent/JP2003056766A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008291630A (en) * | 2006-09-29 | 2008-12-04 | Noriatsu Kojima | Drainage equipment and renewal method of its drainage equipment |
| JP2008308852A (en) * | 2007-06-13 | 2008-12-25 | Daikyo Nishikawa Kk | Seal structure of drain hole of washbowl |
| JP2009046848A (en) * | 2007-08-17 | 2009-03-05 | Noriatsu Kojima | Socket, and drain pipe facility replacing method |
| JP2009079386A (en) * | 2007-09-25 | 2009-04-16 | Maruichi Kk | Connection structure |
| JP2009077820A (en) * | 2007-09-25 | 2009-04-16 | Panasonic Electric Works Co Ltd | Attaching structure of mouthpiece of overflow pipe |
| KR102066746B1 (en) * | 2019-01-30 | 2020-01-15 | 김시우 | Packing for synthetic resin pipes |
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