JPH0738289U - Rubber ring for seal - Google Patents
Rubber ring for sealInfo
- Publication number
- JPH0738289U JPH0738289U JP6998593U JP6998593U JPH0738289U JP H0738289 U JPH0738289 U JP H0738289U JP 6998593 U JP6998593 U JP 6998593U JP 6998593 U JP6998593 U JP 6998593U JP H0738289 U JPH0738289 U JP H0738289U
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- angle
- rubber ring
- taper
- sealing
- 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.)
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Abstract
(57)【要約】
【目的】 管体同士の接続時に脱落することなく、スム
ーズに接続作業が行えるとともに、この接続部分のシー
ル性を確実にする。
【構成】 管軸方向に対して角度θに傾斜した接続端面
6を有するとともに外周面に先細りとなるテーパ角αの
テーパ部8が形成された管接続部4を有する一方の管体
2と、管軸方向に対して角度θに傾斜した接続端面7を
有するとともに拡がり角βの拡径部13が延出形成される
管接続部5を有する他方の管体3とが、互いに回転自在
に接続される自在継手1に、半円10aと方形10bとを一
体に形成した略蒲鉾状の断面形状に形成された環形状と
され、前記半円10aの半径Rの切り込み深さCを有し、
かつ開口角度γが約60°のV字溝16が前記テーパ部8の
先端側に向いて形成されるシール用ゴム輪10を、方形部
分10bをテーパ部8に装着してこのテーパ部8の外周面
と、拡径部13の内周面13aとの間に介設させる。
(57) [Summary] [Purpose] When connecting pipes, they can be connected smoothly without falling off, and the sealing property of this connection is ensured. A pipe body (2) having a pipe connection portion (4) having a connection end face (6) inclined at an angle (θ) with respect to the pipe axis direction and a tapered portion (8) having a taper angle (α) formed on an outer peripheral surface, The other tube body 3 having a connecting end surface 7 inclined at an angle θ with respect to the tube axis direction and having a tube connecting portion 5 in which an enlarged diameter portion 13 having a divergence angle β is extendedly formed is rotatably connected to each other. The universal joint 1 is formed into a ring shape having a substantially semi-cylindrical cross section in which a semicircle 10a and a square 10b are integrally formed, and has a cutting depth C having a radius R of the semicircle 10a.
Further, a rubber ring 10 for sealing, in which a V-shaped groove 16 having an opening angle γ of about 60 ° is formed toward the tip end side of the taper portion 8, a square portion 10b is attached to the taper portion 8, and the taper portion 8 is formed. It is provided between the outer peripheral surface and the inner peripheral surface 13a of the expanded diameter portion 13.
Description
【0001】[0001]
本考案は、例えば、下排水用に用いられる管体における管体同士、或いは、桝 と管体との接続角度を自在に調節する自在継手に使用されるシール用ゴム輪に関 するものである。 The present invention relates to a rubber ring for sealing used in, for example, pipes in a pipe used for drainage, or a universal joint that freely adjusts a connection angle between a rod and a pipe. .
【0002】[0002]
下水や排水の管路を構成する管体には、管路の配管方向を変える自在継手が用 いられる。 この種の自在継手としては、管軸方向に対して所定の角度θに傾斜した接続端 面を有するとともに該接続端面に沿う外周面に先細りとなる所定のテーパ角αの テーパ部が形成された管接続部を有する一方の管体と、管軸方向に対して所定の 角度θに傾斜した接続端面を有するとともに該接続端面から所定の角度の拡がり 角βの拡径部が延出形成される管接続部を有する他方の管体とが、互いに前記各 接続端面を介して回転自在に接続される構造とされる。 Universal joints that change the piping direction of the pipeline are used for the pipes that make up the sewage and drainage pipelines. This type of universal joint has a connection end face inclined at a predetermined angle θ with respect to the pipe axis direction, and a taper portion having a predetermined taper angle α is formed on the outer peripheral surface along the connection end face. One pipe body having a pipe connecting portion and a connecting end face inclined at a predetermined angle θ with respect to the pipe axial direction, and an enlarged diameter portion having a divergence angle β of a predetermined angle is formed to extend from the connecting end face. The other tube body having the tube connection portion is rotatably connected to each other via the connection end faces.
【0003】 そして、このような構造の自在継手における前記一方の管体のテーパ部の外周 面と、前記他方の管体の拡径部の内周面との間には、断面の形状が円形に形成さ れたOリング状のシール用ゴム輪が介設され、前記各管接続部間の止水を行うよ うになっている。In the universal joint having such a structure, the cross-sectional shape is circular between the outer peripheral surface of the tapered portion of the one tubular body and the inner peripheral surface of the expanded diameter portion of the other tubular body. An O-ring-shaped rubber ring for sealing formed on the above is interposed to stop water between the pipe connecting portions.
【0004】[0004]
しかしながら、上述した従来の自在継手におけるシール用ゴム輪では、管体同 士のシール性を向上させるために、円形断面の直径を大きくさせることで対応が 可能となるが、管体同士を接続させる際、すなわち受口側の拡径部に挿口側のテ ーパ部を挿入させる際の摩擦抵抗が大きくなるという欠点があり、接続が困難に なるという問題がある。 However, in the rubber ring for sealing in the conventional universal joint described above, in order to improve the sealing property of the tubular body, it is possible to deal with it by increasing the diameter of the circular cross section, but the tubular bodies are connected to each other. In this case, that is, there is a disadvantage that the frictional resistance when inserting the taper portion on the insertion side into the expanded diameter portion on the reception side becomes large, and there is a problem that connection becomes difficult.
【0005】 また、上記のシール用ゴム輪は、挿口側のテーパ部に装着されるが、断面形状 を単に大きく形成させると、このテーパ部の外周面に対し、大きく突出するため 管体同士の接続時にこのゴム輪が、受口側の拡径部に接触してしまい脱落してし まうという問題がある。Further, the above rubber ring for sealing is attached to the taper portion on the insertion side. However, if the cross-sectional shape is simply made large, it will largely protrude from the outer peripheral surface of this taper portion so that the tubular members There is a problem that this rubber ring comes into contact with the expanded part on the receiving side and falls off when connecting.
【0006】 そこで本考案は、上記問題点を解消するために、管体同士の接続時に脱落する ことなく、スムーズに接続作業が行えるとともに、高圧縮で確実なシール性を有 するシール用ゴム輪を提供することを目的としている。Therefore, in order to solve the above-mentioned problems, the present invention enables a smooth connection work without disconnecting the pipes when they are connected to each other, and also has a highly compressible and reliable sealing rubber ring. Is intended to provide.
【0007】[0007]
次に、上記の目的を達成するための手段を、実施例に対応する図面を参照して 説明する。 この考案のシール用ゴム輪10は、半円10aと方形10bとを一体に形成し た略蒲鉾状の断面形状に形成された環形状若しくは帯形状とされ、前記半円10 aの半径R若しくは該半径R未満の切り込み深さCを有し、かつ開口角度γが9 0°未満のV字溝16を有することを特徴としている。 Next, means for achieving the above object will be described with reference to the drawings corresponding to the embodiments. The sealing rubber ring 10 of the present invention has a ring shape or a band shape formed in a substantially semi-cylindrical cross section in which a semicircle 10a and a square 10b are integrally formed, and the radius R of the semicircle 10a or It is characterized by having a cutting depth C less than the radius R and having a V-shaped groove 16 having an opening angle γ of less than 90 °.
【0008】 また、この考案のシール用ゴム輪は、管軸方向に対して所定の角度θに傾斜し た接続端面6を有するとともに該接続端面6に沿う外周面に先細りとなる所定の テーパ角αのテーパ部8が形成された管接続部4を有する一方の管体2と、管軸 方向に対して所定の角度θに傾斜した接続端面7を有するとともに該接続端面7 から所定の拡がり角βの拡径部13が延出形成される管接続部5を有する他方の 管体3とを具備する自在継手1において、 前記シール用ゴム輪10のV字溝16が前記テーパ部8の先端側に向いて形成 されるとともに、前記方形部分10bが前記一方の管体2のテーパ部8に装着さ れて前記一方の管体2のテーパ部8の外周面と、前記他方の管体3の拡径部13 の内周面13aとの間に介設され、前記各管接続部4,5間の止水を行うことを 特徴としている。Further, the rubber ring for sealing according to the present invention has the connecting end face 6 inclined at the predetermined angle θ with respect to the pipe axis direction, and the outer peripheral surface along the connecting end face 6 is tapered to a predetermined taper angle. The one pipe body 2 having the pipe connecting portion 4 in which the taper portion 8 of α is formed, and the connecting end face 7 inclined at a predetermined angle θ with respect to the pipe axial direction and having a predetermined divergence angle from the connecting end face 7 In the universal joint 1 including the other tube body 3 having the tube connection portion 5 in which the enlarged diameter portion 13 of β is extended and formed, the V-shaped groove 16 of the rubber ring 10 for sealing has the tip of the tapered portion 8. The rectangular portion 10b is formed so as to face toward the side, and the rectangular portion 10b is attached to the tapered portion 8 of the one tube body 2 so that the outer peripheral surface of the tapered portion 8 of the one tube body 2 and the other tube body 3 are formed. Of the expanded pipe 13 and the inner peripheral surface 13a of the expanded pipe 13 It is characterized by performing the waterproofing between connection portion 4,5.
【0009】[0009]
シール用ゴム輪10は、半円10aと方形10bとを一体に形成した略蒲鉾状 の断面形状に形成された環形状若しくは帯形状とされ、前記半円10aの半径R 若しくは該半径R未満の切り込み深さCを有し、かつ開口角度γが90°未満の V字溝16が形成される。 このシール用ゴム輪10は、前記方形部分10bが一方の管体2のテーパ部8 に装着されるとともに、このテーパ部8の先端側に向くように装着される。 そして、前記一方の管体2のテーパ部8の外周面と、他方の管体3の拡径部1 3の内周面13aとの間にこのシール用ゴム輪10は介設され、各管体2,3の 管接続部4,5間の止水が行われる。 The rubber ring 10 for sealing has a ring shape or a band shape having a substantially semi-cylindrical cross-sectional shape in which a semicircle 10a and a square 10b are integrally formed, and has a radius R of the semicircle 10a or less than the radius R. A V-shaped groove 16 having a cutting depth C and an opening angle γ of less than 90 ° is formed. The rubber ring 10 for sealing is mounted so that the rectangular portion 10b is mounted on the taper portion 8 of the one tube body 2 and is directed toward the tip end side of the taper portion 8. The sealing rubber ring 10 is provided between the outer peripheral surface of the tapered portion 8 of the one tube body 2 and the inner peripheral surface 13a of the expanded diameter portion 13 of the other tube body 3, and Water is stopped between the pipe connection parts 4 and 5 of the bodies 2 and 3.
【0010】[0010]
図1は本考案によるシール用ゴム輪の一実施例を示す装着状態の側断面図であ る。 まず、このシール用ゴム輪が装着される自在継手の構造について説明する。 この自在継手1の構造は、図1に示すように一対の管体2,3で構成され、互 いの対向する各端部が管接続部4,5とされ、それぞれの管接続部4,5は、管 体本体の管軸方向に対して所定の角度θ、例えば7.5°に傾斜した接続端面6 ,7が形成され、これら接続端面6,7を介して回転自在に相互接続されるよう になっている。 FIG. 1 is a side sectional view of a rubber ring for sealing according to an embodiment of the present invention in a mounted state. First, the structure of the universal joint to which the rubber ring for sealing is attached will be described. As shown in FIG. 1, the structure of this universal joint 1 is made up of a pair of pipes 2 and 3, and the mutually opposite ends are pipe connecting parts 4 and 5, respectively. 5 is formed with connecting end faces 6 and 7 which are inclined at a predetermined angle θ with respect to the pipe axis direction of the pipe body, for example, 7.5 °, and are rotatably interconnected via these connecting end faces 6 and 7. It has become so.
【0011】 各管体2,3の一方の管体2の管接続部4は、挿口となっており、図1に示す ように、接続端面6に沿う外周面に先細りとなる所定のテーパ角α、本実施例で は接続端面6の傾斜角θと同一の角度7.5°のテーパ部8、別言すると、接続 端面6を基準面としこれに直交する方向を軸線方向とした際のテーパ角αのテー パ部8、が形成されている。The pipe connecting portion 4 of the one pipe body 2 of each of the pipe bodies 2 and 3 is an insertion port, and as shown in FIG. 1, a predetermined taper is formed on the outer peripheral surface along the connection end face 6 to be tapered. The angle α, in this embodiment, the taper portion 8 having the same angle of 7.5 ° as the inclination angle θ of the connection end face 6, in other words, when the connection end face 6 is the reference plane and the direction orthogonal to this is the axial direction. A taper portion 8 having a taper angle α is formed.
【0012】 また、このテーパ部8には、その外周の先端側に接続端面6に沿って形成され るとともに、後述するシール用ゴム輪10が装着される環状溝9と、この環状溝 9と平行に沿う係合溝11が形成されている。 この係合溝11の外側となるテーパ部8の基端側には、係合溝11に沿う被覆 フランジ12が突出形成されている。An annular groove 9 is formed on the taper portion 8 along the connecting end surface 6 on the tip side of the outer periphery thereof, and a rubber ring 10 for sealing, which will be described later, is attached to the annular groove 9 and the annular groove 9. Engagement grooves 11 are formed parallel to each other. A coating flange 12 is formed so as to extend along the engagement groove 11 on the base end side of the tapered portion 8 which is the outside of the engagement groove 11.
【0013】 なお、このテーパ部8の先端となる接続端面6は、均一な幅の中空同心円とな るように形成され、また、図1に示すように、係合溝11と環状溝9の間には、 この一方の管体2の射出成型時における変形を低減するための逃げ溝8aが形成 されている。 また、前記被覆フランジ12には、図4に示すような補強のためのリブ12a を設けてもよい。It should be noted that the connecting end surface 6 which is the tip of the tapered portion 8 is formed to have a hollow concentric circle with a uniform width, and as shown in FIG. 1, the engaging groove 11 and the annular groove 9 are formed. An escape groove 8a is formed between the two pipe bodies 2 to reduce deformation during injection molding. Further, the covering flange 12 may be provided with a reinforcing rib 12a as shown in FIG.
【0014】 次に、各管体2,3の他方の管体3の管接続部5は、拡径形状の受口となって おり、図1に示すように、接続端面7から前記挿口のテーパ部8のテーパ角αと 同一の角度の拡がり角β、すなわち接続端面7の傾斜角θと同一の角度7.5° の拡径部13、別言すると、接続端面7を基準面としこれに直交する方向を軸線 方向としこれに対する拡がり角βの拡径部13、が延出形成されている。Next, the pipe connecting portion 5 of the other pipe body 3 of the respective pipe bodies 2 and 3 is an expanded diameter receiving port, and as shown in FIG. 1, from the connecting end face 7 to the insertion port. Of the taper angle α of the taper portion 8 of the above, that is, the enlarged diameter portion 13 of the same angle 7.5 ° as the inclination angle θ of the connection end surface 7, that is, the connection end surface 7 as the reference surface. A direction orthogonal to this is defined as an axial direction, and a diameter-expanded portion 13 having a divergence angle β with respect to this is extended and formed.
【0015】 また、この拡径部13の先端縁の内周面13aには、接続端面7に平行に沿う 断面が鉤爪状に形成された係合フランジ14が突出形成されている。なお、この 係合フランジ14の突出量、すなわちこの係合フランジ14の先端における内径 D2は、図1に示すように前記テーパ部8の係合溝11の位置における最外形よ り小径で、テーパ部8の環状溝9に装着されるシール用ゴム輪10の最外径D1 と同等若しくはこの最外径D1よりやや大径となるように設定され形成されてい る。 また、この拡径部13の底部となる接続端面7は、前述したテーパ部8の接続 端面6と同様に、均一な幅の中空同心円となるように形成される。Further, on the inner peripheral surface 13 a of the tip end edge of the expanded diameter portion 13, an engagement flange 14 having a claw-shaped cross section parallel to the connection end surface 7 is formed so as to project. The protrusion amount of the engagement flange 14, that is, the inner diameter D2 at the tip of the engagement flange 14, is smaller than the outermost shape at the position of the engagement groove 11 of the taper portion 8 as shown in FIG. It is set and formed to be equal to or slightly larger than the outermost diameter D1 of the sealing rubber ring 10 mounted in the annular groove 9 of the portion 8. Further, the connection end face 7 that is the bottom of the expanded diameter portion 13 is formed to have a hollow concentric circle with a uniform width, like the connection end face 6 of the tapered portion 8 described above.
【0016】 そして、一方の管接続部4である挿口を、他方の管接続部5である受口に挿着 させ、図3に示すように、テーパ部8の係合溝11に拡径部13の係合フランジ 14を係合させ、摺動自在に嵌着させる。 なお、この嵌着状態では、両管体2,3は互いに回転自在に接続され、両管体 2,3を回転させていない真直な状態では、図4に示すように、互いの中心軸線 L1,L2が同一線上となり、また、互いに傾斜した接続端面6,7によって、 他方(一方)の管体は一方(他方)の管体に対し、図5に示すように、0〜2θ 、すなわち本実施例では0〜15°の間の任意の角度の曲げ角度を自在に調節し 設定することができる。 また、拡径部13の先端面13bに、図3に示すような断面半円形状の突起1 5を形成させ、一方の管接続部5の被覆フランジ12と点接触あるいは線接触構 造とすることで互いに回転の際の摩擦抵抗を軽減させることができる。Then, the insertion opening which is the one pipe connecting portion 4 is inserted into the receiving opening which is the other pipe connecting portion 5, and the diameter is expanded to the engagement groove 11 of the taper portion 8 as shown in FIG. The engagement flange 14 of the portion 13 is engaged and slidably fitted. In this fitted state, both pipes 2 and 3 are rotatably connected to each other, and in a straight state where both pipes 2 and 3 are not rotated, as shown in FIG. , L2 are on the same line, and the connecting end surfaces 6 and 7 are inclined with respect to each other, the other (one) tube body is 0 to 2θ with respect to the one (other) tube body, as shown in FIG. In the embodiment, the bending angle of any angle between 0 and 15 ° can be freely adjusted and set. Further, a protrusion 15 having a semicircular cross-section as shown in FIG. 3 is formed on the tip surface 13b of the expanded diameter portion 13 to form a point contact or line contact structure with the coating flange 12 of the one pipe connection portion 5. As a result, the frictional resistance during rotation can be reduced.
【0017】 次に、上述した構成の自在継手に装着される本考案のシール用ゴム輪の一実施 例について説明する。 この実施例のシール用ゴム輪10は、図2に示すように、断面形状が半円10 aと方形10bとを一体に形成した略蒲鉾形状とされるとともに、前記半円10 aの半径Rと同等長さの切り込み深さCを有し、かつ開口角度γが90°未満、 例えば約60°のV字溝16が側面に形成されており、方形部分10bを内周側 とし、半円部分10aを外周側としてこの断面形状が連続する環状に形成されて いる。Next, an embodiment of the rubber ring for sealing of the present invention mounted on the universal joint having the above-mentioned structure will be described. As shown in FIG. 2, the rubber ring for sealing 10 of this embodiment has a semi-cylindrical shape in which a semicircle 10a and a square 10b are integrally formed and has a radius R of the semicircle 10a. A V-shaped groove 16 having a cutting depth C of the same length as the above and an opening angle γ of less than 90 °, for example, about 60 ° is formed on the side surface, and the square portion 10b is the inner peripheral side, and a semicircle The section 10a is formed in an annular shape having a continuous cross section with the outer peripheral side.
【0018】 そして、前記一方の管体2のテーパ部8に形成された環状溝9に、このシール 用ゴム輪10が装着される。 装着状態は、シール用ゴム輪10の方形部分10bが、図1に示すように環状 溝9内に嵌合するように装着され、また、側面に形成されたV字溝16がテーパ 部8の先端側を向くように装着される。Then, the rubber ring 10 for sealing is mounted in the annular groove 9 formed in the tapered portion 8 of the one tube body 2. In the mounted state, the rectangular portion 10b of the rubber ring 10 for sealing is mounted so as to fit in the annular groove 9 as shown in FIG. 1, and the V-shaped groove 16 formed on the side surface of the tapered portion 8 is formed. It is attached so that it faces the tip side.
【0019】 これにより、前述したように一方の管体2と他方の管体3とを接続させ図3及 び図4に示すような嵌着状態とさせると、シール用ゴム輪10は前記一方の管体 2のテーパ部8の外周面と、前記他方の管体3の拡径部13の内周面13aとの 間に、図3に示すように圧縮変形されて断面略矩形状となって介在し、各管接続 部4,5間が水密状態となる。As a result, when the one tubular body 2 and the other tubular body 3 are connected as described above and brought into the fitted state as shown in FIGS. 3 and 4, the sealing rubber ring 10 is As shown in FIG. 3, the outer peripheral surface of the tapered portion 8 of the tubular body 2 and the inner peripheral surface 13a of the expanded diameter portion 13 of the other tubular body 3 are compressed and deformed into a substantially rectangular cross section. And the pipe connections 4 and 5 are watertight.
【0020】 従ってこのように構成されたシール用ゴム輪10では、一対の管体2,3の一 方の管接続部4である挿口を他方の管接続部5である受口に挿着させ、テーパ部 8の係合溝11に拡径部13の係合フランジ14を係合させ両管体2,3を互い に接続する際、テーパ部8の先端側に向いているV字溝16が形成されているこ とから、接続時にこのシール用ゴム輪10の外周側の半円部分10aが方形部分 10bの方向に退避でき、摩擦抵抗が大きくならず、挿入抵抗が少なくなるので 容易に滑らかに接続が行える。Therefore, in the rubber ring 10 for sealing configured as described above, the insertion opening which is the one pipe connection portion 4 of the pair of pipe bodies 2 and 3 is inserted into the reception opening which is the other pipe connection portion 5. When the engaging flange 14 of the expanded diameter portion 13 is engaged with the engaging groove 11 of the taper portion 8 to connect the two pipe bodies 2 and 3 to each other, the V-shaped groove facing the tip side of the taper portion 8 is formed. Since 16 is formed, the semicircular portion 10a on the outer peripheral side of the sealing rubber ring 10 can be retracted in the direction of the rectangular portion 10b at the time of connection, so that friction resistance does not increase and insertion resistance decreases, which is easy. Can be connected smoothly.
【0021】 また、管体2,3同士を接続する際に摩擦抵抗が少ないことから、このシール 用ゴム輪10は脱落することがなく、容易に支障なく接続作業を行うことができ る。Further, since the friction resistance is small when connecting the pipe bodies 2 and 3, the sealing rubber ring 10 does not fall off, and the connection work can be easily performed without any trouble.
【0022】 さらに、管体2,3同士が接続された状態では、このシール用ゴム輪10は側 面のV字溝16が押しつぶされて圧縮変形され、断面形状が略矩形状となるとと もに、テーパ部8の環状溝9及び拡径部13の内周面13aとの間を隙間なく介 在されることとなるので、確実なシール性を得ることができ、負圧水圧が発生す る排水管などにも有効となる。Further, when the tubular bodies 2 and 3 are connected to each other, the rubber ring 10 for sealing has a substantially rectangular cross section when the V-shaped groove 16 on the side surface is crushed and compression-deformed. In addition, since it is interposed between the annular groove 9 of the taper portion 8 and the inner peripheral surface 13a of the expanded diameter portion 13 without any gap, a reliable sealing property can be obtained and a negative pressure water pressure is generated. It is also effective for drainage pipes.
【0023】 なお、前述した実施例では、シール用ゴム輪10の断面形状を、V字溝16の 切り込み深さCを半円10aの半径Rと同等の長さに設定し形成させた例につい て述べたが、この半円10aの半径Rの長さに満たないやや短い長さの切り込み 深さCに設定しV字溝16を形成してもよい。In addition, in the above-described embodiment, an example in which the cross-sectional shape of the rubber ring 10 for sealing is formed by setting the cutting depth C of the V-shaped groove 16 to a length equivalent to the radius R of the semicircle 10a will be described. As described above, the V-shaped groove 16 may be formed by setting the cutting depth C to be slightly shorter than the radius R of the semicircle 10a.
【0024】 また、前述した実施例では、シール用ゴム輪10を無端な環状に形成した例に ついて述べたが、帯状に形成してもよい。Further, in the above-described embodiment, the example in which the sealing rubber ring 10 is formed in an endless annular shape has been described, but it may be formed in a band shape.
【0025】 さらに、上述した実施例では、自在継手1の構造について、テーパ部8のテー パ角α及び拡径部13の拡がり角βを、接続端面6,7の傾斜角θと同一角度( 7.5°)に設定され形成されている例について述べたが、これらテーパ角α及 び拡がり角βが傾斜角θと同一でなくても所定の角度で形成されていればよく、 例えば、テーパ部8のテーパ角αと拡径部13の拡がり角βとの関係をα>βと して設定し形成すると、テーパ部8の表面と拡径部13の内面との間に間隙を設 けることができ、これによりテーパ部8の環状溝9に装着されるシール用ゴム輪 10の体積、すなわち断面の形状を大きく設定させることができ、この接続部分 でのシール性をさらに向上させることができる。Further, in the embodiment described above, in the structure of the universal joint 1, the taper angle α of the taper portion 8 and the divergence angle β of the enlarged diameter portion 13 are the same as the inclination angle θ of the connection end faces 6 and 7 ( Although the taper angle α and the divergence angle β are not the same as the inclination angle θ, they may be formed at a predetermined angle, for example, When the relationship between the taper angle α of the tapered portion 8 and the divergence angle β of the expanded diameter portion 13 is set to be α> β and formed, a gap is provided between the surface of the tapered portion 8 and the inner surface of the expanded diameter portion 13. It is possible to increase the volume of the sealing rubber ring 10 mounted in the annular groove 9 of the taper portion 8, that is, the shape of the cross section, thereby further improving the sealing performance at this connecting portion. You can
【0026】 また、上述した実施例は、一対の管体2,3におけるそれらの接続部分を角度 調整自在な継手構造とした例について述べたが、管体同士ではなく、一方または 他方の管接続部が排水桝に形成されている構造としてもよい。 なお、本考案のシール用ゴム輪10は、上述した自在継手1に限らず、管体同 士の接続に使用されてもよい。Further, in the above-mentioned embodiment, the example in which the connecting portions of the pair of pipes 2 and 3 have a joint structure in which the angle can be adjusted has been described, but one or the other pipe connection is made instead of the pipes. The structure may be such that the portion is formed as a drainage basin. The rubber ring for sealing 10 of the present invention is not limited to the universal joint 1 described above, but may be used for connecting pipe members.
【0027】[0027]
以上説明したように本考案によるシール用ゴム輪では、一方の管体と他方の管 体とを、テーパ部と拡径部とで互いに接続する際、テーパ部の先端側に向いてい るV字溝が形成されていることから、このゴム輪の外周側の半円部分が方形部分 の方向に退避され、これにより摩擦抵抗が大きくならず、挿入抵抗が少なくなる ので容易に、かつ滑らかに管体同士の接続が行えるという効果がある。 As described above, in the rubber ring for sealing according to the present invention, when one pipe body and the other pipe body are connected to each other by the tapered portion and the enlarged diameter portion, the V-shape facing the tip end side of the tapered portion. Since the groove is formed, the semicircular portion on the outer peripheral side of this rubber ring is retracted in the direction of the square portion, which does not increase the frictional resistance and reduces the insertion resistance. The effect is that the bodies can be connected to each other.
【0028】 また、管体同士を接続する際に、シール用ゴム輪による摩擦抵抗が少ないこと から、このシール用ゴム輪は脱落することがなく、容易に接続作業を行うことが でき、配管施工の作業が煩雑になることがなくなるという効果がある。In addition, since the sealing rubber ring has a small frictional resistance when the pipes are connected to each other, the sealing rubber ring does not fall off, and the connection work can be easily performed. There is an effect that the work of is not complicated.
【0029】 さらに、管体同士が接続された状態では、このシール用ゴム輪は側面のV字溝 が押しつぶされて圧縮変形され、断面形状が略矩形状となるとともに、テーパ部 の環状溝及び拡径部の内面との間に隙間なく介在されることとなるので、確実な シール性を得ることができるという効果があり、負圧水圧が発生する排水管など にも有効となる。Further, in the state where the pipes are connected to each other, the rubber ring for sealing is crushed by the V-shaped groove on the side surface and compressed and deformed to have a substantially rectangular cross section, and the annular groove of the tapered portion and Since there is no gap between the inner surface of the expanded diameter part and the inner surface, there is an effect that a reliable sealing property can be obtained, and it is also effective for drainage pipes where negative pressure water pressure is generated.
【図1】本考案によるシール用ゴム輪の自在継手への装
着状態を示す側断面図FIG. 1 is a side sectional view showing a state in which a rubber ring for sealing according to the present invention is attached to a universal joint.
【図2】同実施例によるシール用ゴム輪の側断面図FIG. 2 is a side sectional view of a rubber ring for sealing according to the embodiment.
【図3】同実施例による嵌着状態の自在継手におけるシ
ール用ゴム輪の拡大側断面図FIG. 3 is an enlarged side sectional view of a rubber ring for sealing in a universal joint in a fitted state according to the same embodiment.
【図4】同実施例による自在継手の使用例を示す側断面
図FIG. 4 is a side sectional view showing a usage example of the universal joint according to the embodiment.
【図5】同実施例による自在継手の使用例を示す側断面
図FIG. 5 is a side sectional view showing a usage example of the universal joint according to the embodiment.
1…自在継手 2…一方に管体 3…他方の管体 4…一方の管接続部 5…他方の管接続部 6…一方の接続端面 7…他方の接続端面 8…テーパ部 10…シール用ゴム輪 10a…半円 10b…方形 13…拡径部 13a…内周面 16…V字溝 C…切り込み深さ R…半径 α…テーパ角 β…拡がり角 γ…開口角度 θ…傾斜角 DESCRIPTION OF SYMBOLS 1 ... Universal joint 2 ... One tubular body 3 ... The other tubular body 4 ... One tubular connecting part 5 ... The other tubular connecting part 6 ... One connecting end face 7 ... The other connecting end face 8 ... Tapered part 10 ... For sealing Rubber ring 10a ... Semicircle 10b ... Square 13 ... Expanded portion 13a ... Inner peripheral surface 16 ... V-shaped groove C ... Depth of cut R ... Radius α ... Taper angle β ... Spread angle γ ... Opening angle θ ... Inclination angle
Claims (2)
の断面形状に形成された環形状若しくは帯形状とされ、
前記半円の半径若しくは該半径未満の切り込み深さを有
し、かつ開口角度が90°未満のV字溝を有することを
特徴とするシール用ゴム輪。1. A ring-shaped or band-shaped member having a substantially semi-cylindrical cross-sectional shape in which a semicircle and a square are integrally formed,
A rubber ring for sealing, which has a V-shaped groove having a radius of the semicircle or a cutting depth less than the radius and an opening angle of less than 90 °.
た接続端面を有するとともに該接続端面に沿う外周面に
先細りとなる所定のテーパ角αのテーパ部が形成された
管接続部を有する一方の管体と、管軸方向に対して所定
の角度θに傾斜した接続端面を有するとともに該接続端
面から所定の拡がり角βの拡径部が延出形成される管接
続部を有する他方の管体とを具備する自在継手におい
て、 請求項1よりなるシール用ゴム輪のV字溝が前記テーパ
部の先端側に向いて形成されるとともに、前記方形部分
が前記一方の管体のテーパ部に装着されて前記一方の管
体のテーパ部の外周面と、前記他方の管体の拡径部の内
周面との間に介設され、前記各管接続部間の止水を行う
ことを特徴とするシール用ゴム輪。2. A pipe connecting portion having a connecting end face inclined at a predetermined angle θ with respect to the pipe axis direction and having a taper portion with a predetermined taper angle α tapering on an outer peripheral surface along the connecting end face. One of the pipes having the above, and a pipe connecting part having a connecting end face inclined at a predetermined angle θ with respect to the pipe axis direction and a pipe connecting part in which an enlarged diameter part of a predetermined spread angle β is formed to extend from the connecting end face. And a V-shaped groove of the rubber ring for sealing according to claim 1, wherein the V-shaped groove is formed toward the tip end side of the taper portion, and the rectangular portion is a taper of the one tube body. Installed between the outer peripheral surface of the tapered portion of the one pipe body and the inner peripheral surface of the expanded diameter portion of the other pipe body to stop water between the pipe connection portions. A rubber ring for sealing, which is characterized by that.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6998593U JPH0738289U (en) | 1993-12-27 | 1993-12-27 | Rubber ring for seal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6998593U JPH0738289U (en) | 1993-12-27 | 1993-12-27 | Rubber ring for seal |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0738289U true JPH0738289U (en) | 1995-07-14 |
Family
ID=13418479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6998593U Pending JPH0738289U (en) | 1993-12-27 | 1993-12-27 | Rubber ring for seal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0738289U (en) |
-
1993
- 1993-12-27 JP JP6998593U patent/JPH0738289U/en active Pending
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