JPH0633258Y2 - Packing - Google Patents
PackingInfo
- Publication number
- JPH0633258Y2 JPH0633258Y2 JP4686989U JP4686989U JPH0633258Y2 JP H0633258 Y2 JPH0633258 Y2 JP H0633258Y2 JP 4686989 U JP4686989 U JP 4686989U JP 4686989 U JP4686989 U JP 4686989U JP H0633258 Y2 JPH0633258 Y2 JP H0633258Y2
- Authority
- JP
- Japan
- Prior art keywords
- packing
- pressing
- outer peripheral
- peripheral edge
- 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.)
- Expired - Lifetime
Links
- 238000012856 packing Methods 0.000 title claims description 55
- 230000002093 peripheral effect Effects 0.000 claims description 28
- 238000003825 pressing Methods 0.000 claims description 27
- 239000011324 bead Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007547 defect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Gasket Seals (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、シール技術に係るパッキンに関し、とくに管
状の部材と該部材の内周に配置される部材との接続部に
介装されるパッキンに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a packing relating to a sealing technique, and particularly to a packing interposed between a tubular member and a member arranged on the inner circumference of the member. It is about.
従来から、２本の管部材(21)(22)を水密的に接続する構
造として第17図に示すものが知られており、すなわち、
この構造は、第18図に示すように、大径側の管部材(21)
の受口部(21a)の内周に予めパッキン(1)を装填し、受口
部(21a)に小径側の管部材(22)を差し込み、両管部材(2
1)(22)をその外周側からプレス工具(23)によってプレス
して縮径させることにより接合するものとなっている。
この接続構造は、水道用または建築用屋内配管に多用さ
れ、とくに大径側の管部材(21)に継手部材をつかって
“プレス式管継手”として用いられている。またパッキ
ン(1)には所謂Ｏリングが用いられている。A structure shown in FIG. 17 is conventionally known as a structure for connecting two pipe members (21) and (22) in a watertight manner, that is,
This structure, as shown in FIG. 18, has a large diameter pipe member (21).
The packing (1) is preliminarily loaded on the inner circumference of the receiving portion (21a) of the, and the pipe member (22) on the small diameter side is inserted into the receiving portion (21a), and both pipe members (2
1) The (22) is joined from the outer peripheral side by pressing with a press tool (23) to reduce the diameter.
This connection structure is often used for indoor piping for water supply or construction, and is used as a "press type pipe joint" by using a joint member for the pipe member (21) on the large diameter side in particular. A so-called O-ring is used for the packing (1).
上記の接続構造において、パッキン(1)にはプレスの前
後にわたって２段階の潰し代が設定され、パッキン(1)
はプレス後だけでなくプレス前においても両管部材(21)
(22)に挟まれて、ある程度のシール作用を奏するように
なっている。したがって上記の構造によると、万一、施
工者が配管施工時に接続部をプレスするのを失念して
も、その後の水圧試験時に漏水がないためにこの施工上
の不具合を検知することができない問題があり、これに
伴って、実働時に大事故を生じる虞れがある。上記のＯ
リングをつかってこの施工上の不具合を検知するには、
プレス前の段階でＯリングを非圧縮として遊ばせれば良
い訳であるが、このようにすると、管部材(21)(22)が径
方向にガタついて該管部材(21)(22)をしっかりと位置決
めすることができない問題を生じる。In the above connection structure, the packing (1) has a two-stage crushing allowance before and after the pressing, and the packing (1)
Both pipe members (21) not only after pressing but also before pressing
It is sandwiched between (22) and has a certain sealing effect. Therefore, according to the above structure, even if the installer forgets to press the connection portion during piping construction, it is not possible to detect this construction defect because there is no water leakage during the subsequent water pressure test. There is a risk that a major accident will occur during actual work. O above
To detect this construction defect using a ring,
It is only necessary to allow the O-ring to play in a non-compressed state before pressing, but with this arrangement, the pipe members (21) (22) rattle in the radial direction and the pipe members (21) (22) are firmly fixed. And the problem that cannot be positioned occurs.
本考案は以上の点に鑑み、上記のような接続構造に用い
られるパッキンに施工上の不具合を検知し得る機能を持
たせる目的でなされたものである。In view of the above points, the present invention has been made for the purpose of providing a packing used in the above-described connection structure with a function capable of detecting a construction defect.
上記目的を達成するため、本考案の第１請求項によるパ
ッキンは、管状の外周部材と前記外周部材の内周に配置
される内周部材とをその外周側からプレスして接合する
接続部に介装されるパッキンにおいて、外周縁または内
周縁の一部に、前記プレス前に当該パッキンと前記外周
部材または内周部材との間に間隙流路を形成する凸部ま
たは凹部を設け、前記間隙流路が前記プレスにより削滅
するものであることを特徴とする。In order to achieve the above object, the packing according to the first aspect of the present invention comprises a connecting portion for pressing and joining a tubular outer peripheral member and an inner peripheral member arranged on the inner periphery of the outer peripheral member by pressing from the outer peripheral side thereof. In the interposed packing, a part of the outer peripheral edge or the inner peripheral edge is provided with a convex portion or a concave portion that forms a gap flow path between the packing and the outer peripheral member or the inner peripheral member before the pressing, and the gap It is characterized in that the flow path is abraded by the press.
また第２請求項によるパッキンは、上記第１請求項にお
いて、前記凸部が、１つの環状ビードによって当該パッ
キンの内周縁と外周縁の双方に設けられていることを特
徴とする。A packing according to a second aspect is characterized in that, in the first aspect, the convex portions are provided on both the inner peripheral edge and the outer peripheral edge of the packing by one annular bead.
また第３請求項によるパッキンは、同じく第１請求項に
おいて、１対の凸部と凹部が、当該パッキンの一部分の
曲率を他の部分の曲率と異ならせることにより設けら
れ、前記一部分の断面形状が他の部分の断面形状と同じ
であることを特徴とする。Also, in the packing according to the third aspect, in the same manner as in the first aspect, the pair of protrusions and recesses are provided by making a curvature of a part of the packing different from a curvature of another part, and a cross-sectional shape of the part. Is the same as the cross-sectional shape of other portions.
パッキンの一部に凸部または凹部を設けてプレス前の段
階で間隙流路を形成すると、施工上の不具合があった場
合、水圧試験時にこの間隙流路から確実に漏水する。ま
たこの間隙流路は外周部材および内周部材に対するプレ
スによって消滅する大きさに設定され、プレス後のシー
ル作用を確実なものとしている。If a convex portion or a concave portion is provided in a part of the packing and the gap flow passage is formed before the pressing, if there is a problem in construction, water will surely leak from the gap flow passage during the hydraulic test. Further, this gap flow path is set to a size which is eliminated by pressing the outer peripheral member and the inner peripheral member, thereby ensuring the sealing action after pressing.
つぎに本考案の実施例を図面にしたがって説明する。 Next, an embodiment of the present invention will be described with reference to the drawings.
第１図ないし第３図に示すように、断面真円形のパッキ
ン(1)の円周方向の一部に環状のビード(2)が一体成形さ
れて、当該パッキン(1)の内周縁と外周縁のそれぞれに
アール状の凸部(3)(4)が形成されている。環状ビード
(2)は図示するように少し離れて２本設けられており、
符号(1a)は当該パッキン(1)の他の部分と同じ断面にな
る、２本のビード(2)(2)の中間部分を示している。As shown in FIGS. 1 to 3, an annular bead (2) is integrally formed on a part of the packing (1) having a perfect circular cross section in the circumferential direction, so that the packing (1) has an inner peripheral edge and an outer circumference. R-shaped projections (3) and (4) are formed on each of the peripheral edges. Ring bead
As shown in the figure, (2) is provided a little apart from each other,
Reference numeral (1a) indicates an intermediate portion of the two beads (2) and (2) having the same cross section as the other portion of the packing (1).
第４図および第５図は、上記構成のパッキン(1)を第18
図に示したような管部材(21)(22)の間に介装した状態を
示し、更に両図はプレス前の状態を示している。この状
態において、当該パッキン(1)は第１図にt1で示した潰
し代をもって径方向に圧縮変形せしめられ、各ビード
(2)と当該パッキン(1)の他の部分（前記中間部分(1a)を
含む、以下同じ）の境界部分において管部材(21)(22)の
内壁との間に間隙流路(11)(12)を形成している。したが
って、施工に際して万一プレス工程を失念することがあ
ってもその後に行なわれる水圧試験時に間隙流路(11)か
ら必ず漏水する事態を生じ、失念を検知して手当するこ
とができる。またパッキン(1)を前記潰し代の範囲で径
方向に圧縮するものであることから、管部材(21)(22)同
士がガタつくこともない。Fig. 4 and Fig. 5 show the packing (1) with the above-mentioned structure
The state of being interposed between the pipe members (21) and (22) as shown in the figure is shown, and both figures show the state before pressing. In this state, the packing (1) is compressed and deformed in the radial direction with a crushing margin shown by t 1 in FIG.
(2) and the other part of the packing (1) (including the intermediate part (1a), the same applies below) at the boundary between the inner wall of the pipe member (21) (22) Forming (12). Therefore, even if the pressing process should be forgotten during the construction, a situation in which water leaks from the interstitial channel (11) without fail during a hydraulic pressure test performed thereafter can be detected and treated. Further, since the packing (1) is compressed in the radial direction within the range of the crushing allowance, the pipe members (21) and (22) do not rattle.
第６図および第７図は、上記第４図および第５図の状態
から管部材(21)(22)をプレス工具(23)によってプレスし
た後の状態を示しており、この状態において、当該パッ
キン(1)は第１図にt2で示した潰し代をもって径方向に
更に圧縮変形せしめられ、前記間隙流路(11)(12)は消滅
せしめられるようになる。したがって当該パッキン(1)
は確実なシール作用を奏し、シール部材としての本来の
役割を十分に果たすことができる。当該パッキン(1)は
凸部(3)(4)を設定するのに環状ビード(2)を成形してな
り、このため、当該パッキン(1)が捩れた状態で装填さ
れても確実に間隙流路(11)(12)を形成することができ
る。また２本の環状ビード(2)(2)を少し離して並設した
ため、第４図の状態で中間部分(1a)の相対的な膨張を大
きくして大きな間隙流路(11)(12)を形成することができ
る。尚、第６図に示した環状ビード(2)と他の部分の境
界線は図面を判り易くするためのものである。FIGS. 6 and 7 show a state after the pipe members (21) and (22) are pressed by the press tool (23) from the states shown in FIGS. 4 and 5, and in this state, The packing (1) is further compressed and deformed in the radial direction with a crushing margin shown by t 2 in FIG. 1, so that the gap channels (11) and (12) are eliminated. Therefore the packing (1)
Has a reliable sealing action, and can sufficiently fulfill its original role as a sealing member. The packing (1) is formed by forming an annular bead (2) to set the protrusions (3) (4), so that even if the packing (1) is loaded in a twisted state, the gap (1) is surely secured. The flow channels (11) and (12) can be formed. Further, since the two annular beads (2) (2) are arranged side by side slightly apart, the relative expansion of the intermediate portion (1a) is increased in the state of FIG. 4 to increase the large gap flow passages (11) (12). Can be formed. The boundary line between the annular bead (2) and other portions shown in FIG. 6 is for the sake of clarity.
第８図および第９図のパッキン(1)は、断面真円形の当
該パッキン(1)の内周縁の一部を切欠いて凹部(5)を形成
し、プレス前、第10図に示すように、間隙流路(13)を形
成する。第11図および第12図のパッキン(1)は、断面真
円形の当該パッキン(1)の内周縁の一部に凸部(6)を一体
成形して、これにより、プレス前、第13図に示すような
間隙流路(14)を形成する。これらの凹部(5)や凸部(6)は
パッキン(1)の外周縁に形成しても良く、また組み合わ
せて形成しても良い。第14図ないし第16図に示したパッ
キン(1)はこの組み合わせの特殊な例として、１対の凸
部(7)と凹部(8)が当該パッキン(1)の一部分の曲率を他
の部分の曲率と異ならせるようにして設けられ、さらに
前記一部分の断面形状が他の部分の断面形状と同形同大
の真円に設定されており、プレス後の、局部的な過大圧
縮を緩和し得る構造となっている。The packing (1) shown in FIGS. 8 and 9 has a recess (5) formed by cutting out a part of the inner peripheral edge of the packing (1) having a perfect circular cross section, as shown in FIG. 10 before pressing. , Forming a gap flow path (13). The packing (1) shown in FIGS. 11 and 12 has a convex portion (6) integrally formed on a part of the inner peripheral edge of the packing (1) having a perfect circular cross section. A gap channel (14) is formed as shown in FIG. These recesses (5) and protrusions (6) may be formed on the outer peripheral edge of the packing (1) or may be formed in combination. As a special example of this combination, the packing (1) shown in FIGS. 14 to 16 has a pair of protrusions (7) and recesses (8) that change the curvature of one part of the packing (1) to the other part. The cross-sectional shape of the part is set to be a perfect circle with the same shape and size as the cross-sectional shape of the other part, and the local excessive compression after pressing is mitigated. It is a structure to get.
本考案のパッキンは以上説明したように、管状の部材と
該部材の内周に配置される部材とのプレス式接続部に介
装されるものとして、当該パッキンの一部に凸部または
凹部を設けてプレス前の段階で間隙流路を形成するもの
で、施工上の不具合（プレスの失念）があった場合にこ
れを確実に検知することができる。また前記間隙流路を
プレスによって消滅するものとしたことから、プレス後
においても、十分なシール効果を奏する。上記実施例で
はパッキンの断面形状を何れも真円としたが、本考案の
内容はどのような形状のパッキンに対しても適用するこ
とが可能である。As described above, the packing of the present invention is provided as a press-type connection portion between a tubular member and a member arranged on the inner circumference of the member, and a convex portion or a concave portion is formed on a part of the packing. Since it is provided and the gap flow path is formed in the stage before the pressing, it is possible to reliably detect the defect in the construction (forgetting of the press). Further, since the gap flow path is eliminated by pressing, a sufficient sealing effect can be obtained even after pressing. In the above embodiments, the packing has a circular cross section, but the contents of the present invention can be applied to packings of any shape.
第１図は本考案の第１実施例に係るパッキンの正面図、
第２図は第１図におけるＡ−Ａ断面図、第３図は第１図
におけるＢ−Ｂ断面図、第４図は同パッキンのプレス前
の装着状態を示す断面図、第５図は第４図におけるＣ−
Ｃ断面図、第６図は同パッキンのプレス後の装着状態を
示す断面図、第７図は第６図におけるＤ−Ｄ断面図、第
８図は本考案の第２実施例に係るパッキンの要部正面
図、第９図は第８図におけるＥ−Ｅ断面図、第10図は同
パッキンのプレス前の装着状態を示す断面図、第11図は
本考案の第３実施例に係るパッキンの要部正面図、第12
図は第11図におけるＦ−Ｆ断面図、第13図は同パッキン
のプレス前の装着状態を示す断面図、第14図は本考案の
第４実施例に係るパッキンの要部正面図、第15図は第14
図におけるＧ−Ｇ断面図、第16図は同パッキンのプレス
前の装着状態を示す断面図、第17図は管部材のプレス式
接続構造の完成状態（プレス後）を示す断面図、第18図
は同構造のプレス前の状態を示す断面図である。 (1)……パッキン、(1a)……中間部分 (2)……環状ビード、(3)(4)(6)(7)……凸部 (5)(8)……凹部 (11)(12)(13)(14)(15)(16)……間隙流路 (21)(22)……管部材、(21a)……受口部 (23)……プレス工具FIG. 1 is a front view of a packing according to a first embodiment of the present invention,
2 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a sectional view taken along the line BB in FIG. 1, FIG. 4 is a sectional view showing a mounting state of the packing before pressing, and FIG. C- in Figure 4
C sectional view, FIG. 6 is a sectional view showing a mounted state of the packing after pressing, FIG. 7 is a sectional view taken along line DD of FIG. 6, and FIG. 8 is a packing according to a second embodiment of the present invention. A front view of essential parts, FIG. 9 is a sectional view taken along line EE in FIG. 8, FIG. 10 is a sectional view showing a mounting state of the packing before pressing, and FIG. 11 is a packing according to a third embodiment of the present invention. Front view of the essential parts of the 12th
11 is a sectional view taken along the line F-F in FIG. 11, FIG. 13 is a sectional view showing the packing before being mounted, and FIG. 14 is a front view of the main parts of the packing according to the fourth embodiment of the present invention. Figure 15 is number 14
Fig. 16 is a sectional view taken along the line GG, Fig. 16 is a sectional view showing a mounting state of the packing before pressing, and Fig. 17 is a sectional view showing a completed state (after pressing) of a press-type connection structure for pipe members. The figure is a cross-sectional view showing a state before pressing the structure. (1) …… Packing, (1a) …… Middle part (2) …… Circular bead, (3) (4) (6) (7) …… Convex part (5) (8) …… Concave part (11) (12) (13) (14) (15) (16) …… Gap channel (21) (22) …… Pipe member, (21a) …… Receiving part (23) …… Press tool
Claims (3)
内周に配置される内周部材(22)とをその外周側からプレ
スして接合する接続部に介装されるパッキン(1)におい
て、外周縁または内周縁の一部に、前記プレス前に当該
パッキン(1)と前記外周部材(21)または内周部材(22)と
の間に間隙流路(11)(12)(13)(14)(15)(16)を形成する凸
部(3)(4)(6)(7)または凹部(5)(8)を設け、前記間隙流路
(11)(12)(13)(14)(15)(16)が前記プレスにより消滅する
ものであることを特徴とするパッキン。1. A tubular outer peripheral member (21) and an inner peripheral member (22) arranged on the inner periphery of the outer peripheral member (21) are interposed in a connecting portion for pressing and joining them from the outer peripheral side. In the packing (1), in a part of the outer peripheral edge or the inner peripheral edge, a gap flow path (11) (between the packing (1) and the outer peripheral member (21) or the inner peripheral member (22) before the pressing. Providing convex portions (3), (4), (6) (7) or concave portions (5) (8) forming 12), (13), (14), (15) and (16), the gap channel
(11), (12), (13), (14), (15) and (16) are the ones that are eliminated by the pressing.
によって当該パッキン(1)の内周縁と外周縁の双方に設
けられていることを特徴とする第１項記載のパッキン。2. The annular bead (2) in which the protrusions (3) (4) are one.
The packing according to claim 1, which is provided on both the inner peripheral edge and the outer peripheral edge of the packing (1).
(1)の一部分の曲率を他の部分の曲率と異ならせること
により設けられ、前記一部分の断面形状が他の部分の断
面形状と同じであることを特徴とする第１項記載のパッ
キン。3. A packing comprising a pair of protrusions (7) and recesses (8).
The packing according to claim 1, wherein the packing is provided by making the curvature of a part of (1) different from the curvature of another part, and the cross-sectional shape of the part is the same as the cross-sectional shape of the other part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4686989U JPH0633258Y2 (en) | 1989-04-24 | 1989-04-24 | Packing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4686989U JPH0633258Y2 (en) | 1989-04-24 | 1989-04-24 | Packing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02138274U JPH02138274U (en) | 1990-11-19 |
| JPH0633258Y2 true JPH0633258Y2 (en) | 1994-08-31 |
Family
ID=31562312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4686989U Expired - Lifetime JPH0633258Y2 (en) | 1989-04-24 | 1989-04-24 | Packing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0633258Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084713A (en) * | 2002-08-23 | 2004-03-18 | Ck Kinzoku Kk | Press-type pipe joint tightening checking method, and press-type pipe joint |
-
1989
- 1989-04-24 JP JP4686989U patent/JPH0633258Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004084713A (en) * | 2002-08-23 | 2004-03-18 | Ck Kinzoku Kk | Press-type pipe joint tightening checking method, and press-type pipe joint |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02138274U (en) | 1990-11-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |