JPH053775U - Pipe fitting - Google Patents
Pipe fittingInfo
- Publication number
- JPH053775U JPH053775U JP6001791U JP6001791U JPH053775U JP H053775 U JPH053775 U JP H053775U JP 6001791 U JP6001791 U JP 6001791U JP 6001791 U JP6001791 U JP 6001791U JP H053775 U JPH053775 U JP H053775U
- Authority
- JP
- Japan
- Prior art keywords
- male screw
- tightening
- screw
- peripheral surface
- joint body
- 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
- Joints With Pressure Members (AREA)
Abstract
(57)【要約】
【目的】 オネジとメネジにて締付ける管継手に於い
て、目測にて、締付け力を正確に、かつ、容易に規定出
来るようにする。
【構成】 先端部の外周面にオネジ11を有する円筒パイ
プ状の継手本体１と、摺動リング４と、弾性シール材５
と、継手本体１のオネジ11と螺合するメネジ12を有する
袋ナット６とから成る。継手本体１のオネジ11の外周面
には、インクジェットにて輪切り状の締付け位置目印線
７が付設される。オネジ11にメネジ12を螺進させ、袋ナ
ット６の接続側端縁14と締付け位置目印線７が側面視で
略一致した位置で螺進を止めれば、締付け力を適正範囲
に出来る。
(57) [Summary] [Purpose] In a pipe joint that is tightened with a male screw and a female screw, the tightening force can be specified accurately and easily by visual inspection. [Structure] A cylindrical pipe-shaped joint body 1 having a male thread 11 on an outer peripheral surface of a tip portion, a sliding ring 4, and an elastic seal member 5
And a cap nut 6 having a female screw 12 which is screwed into the male screw 11 of the joint body 1. A ring-shaped tightening position mark line 7 is attached to the outer peripheral surface of the male screw 11 of the joint body 1 by inkjet. If the female screw 12 is screwed onto the male screw 11 and the screwing is stopped at a position where the connecting side edge 14 of the cap nut 6 and the tightening position mark line 7 are substantially coincident with each other in a side view, the tightening force can be set within an appropriate range.
Description
【０００１】[0001]
本考案は、金属管の接続に用いる管継手に関する。 The present invention relates to a pipe joint used for connecting metal pipes.
【０００２】[0002]
一般に、この種の管継手では、オネジとメネジとの締付けにより、シール材を 圧縮して密封する構造であった。そして、従来、この管継手を締付ける場合には 、シール材の圧縮率を一定範囲とするため、ネジの回転開始位置からの回転角度 を規定したり、トルクレンチによりネジの締付けトルクを規定していた。 Generally, this type of pipe joint has a structure in which the sealing material is compressed and hermetically sealed by tightening a male screw and a female screw. In the past, when tightening this pipe joint, in order to keep the compression ratio of the sealing material within a certain range, the rotation angle from the rotation start position of the screw was specified, and the tightening torque of the screw was specified by a torque wrench. It was
【０００３】[0003]
しかし、ネジの回転開始位置からの回転角度を規定する場合には、作業に手間 がかかるため施工時間が長くなる欠点が有り、トルクレンチによりネジの締付け トルクを規定した場合には、ネジの接触面の表面粗さや潤滑状態により、摩擦係 数が大きく変化するのでトルクは一定に保てても、シール材の締付け力は大きな バラツキが生じる欠点が有った。 However, when the rotation angle from the rotation start position of the screw is specified, there is a drawback in that the work takes time and the construction time is long.When the tightening torque of the screw is specified with a torque wrench, the screw contact Since the friction coefficient changes greatly depending on the surface roughness and lubrication state of the surface, the tightening force of the seal material varies greatly even if the torque is kept constant.
【０００４】 そこで、本考案は、上述の欠点を解消し、目測にて、締付け力を正確に、かつ 、簡単に規定出来る管継手を提供することを目的とする。Therefore, an object of the present invention is to solve the above-mentioned drawbacks and to provide a pipe joint in which the tightening force can be accurately and easily defined by visual inspection.
【０００５】[0005]
上述の目的を達成するために、本考案に係る管継手は、オネジとメネジにて締 付ける管継手に於いて、オネジの外周面に輪切り状にインクジェットプリントに て締付け位置目印線を付設したものである。 In order to achieve the above-mentioned object, the pipe joint according to the present invention is a pipe joint to be tightened with a male screw and a female screw, in which a tightening position mark line is attached to the outer peripheral surface of the male screw in a circular slice shape by inkjet printing Is.
【０００６】[0006]
ネジの軸心に対して直角な方向からオネジを見つつ、オネジにメネジを螺着・ 螺進させる。オネジの外周面に輪切り状に付設された締付け位置目印線がメネジ の先端縁と一致した位置で、ネジの回転を止める。この時、シール材が適正な圧 縮率となり、継手部の密閉度は規定以上になる。 While watching the male thread from the direction perpendicular to the screw axis, screw the female thread into the male thread. Stop the rotation of the screw at the position where the tightening mark on the outer peripheral surface of the male screw is aligned with the leading edge of the female screw. At this time, the sealing material has an appropriate compression ratio, and the degree of sealing of the joint becomes more than the specified value.
【０００７】[0007]
以下、実施例を示す図面に基づき本考案を詳説する。 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating an embodiment.
【０００８】 図１は、本考案に係る管継手の一実施例を示し、この管継手は、フレア部２を 有するステンレス製等の被接続パイプ３の接続に用いられ、ステンレス製等の円 筒パイプ状の継手本体１と、硬質樹脂製等の摺動リング４と、ゴム製等の弾性シ ール材５と、継手本体１と螺合するステンレス製等の袋ナット６とから成ってい る。FIG. 1 shows an embodiment of a pipe joint according to the present invention. This pipe joint is used for connecting a connected pipe 3 made of stainless steel or the like having a flare portion 2, and is a cylindrical pipe made of stainless steel or the like. It is composed of a pipe-shaped joint body 1, a sliding ring 4 made of hard resin, an elastic seal material 5 made of rubber, etc., and a cap nut 6 made of stainless steel or the like screwed into the joint body 1. .
【０００９】 そして、継手本体１の接続側の端部には、先端縮径状のテーパ部８が形成され 、該テーパ部８の近傍の円筒外周面には、オネジ11が形成される。A taper portion 8 having a reduced diameter tip is formed at the end of the joint body 1 on the connection side, and a male screw 11 is formed on the outer peripheral surface of the cylinder near the taper portion 8.
【００１０】 さらに、図２に示すように、オネジ11の所定の箇所における軸心Ｌに直交する 平面Ｐと、オネジ11の外周面とが、交わる線上には、インクジェットプリントに て輪切り状の締付け位置目印線７が付設される。この締付け位置目印線７は、多 数の微小な点の集合した模様の線である。このインクジェットプリントとは、帯 電制御原理を利用したマーキング機器にて、印刷するものである。Further, as shown in FIG. 2, on a line where a plane P orthogonal to the axial center L at a predetermined position of the male screw 11 and the outer peripheral surface of the male screw 11 intersect, a ring-shaped tightening is performed by inkjet printing. A position mark line 7 is attached. The tightening position mark line 7 is a pattern line in which a large number of minute points are aggregated. This inkjet printing is printing with a marking device that utilizes the principle of charging control.
【００１１】 従って、締付け位置目印線７は、軸心Ｌに対して直角状となるため、側面視が 図２のように、オネジ11のネジ山の方向に対して僅かに斜めに走る直線状となる 。Therefore, the tightening position mark line 7 is at a right angle with respect to the axis L, so that the side view is a straight line running slightly obliquely to the direction of the thread of the male screw 11 as shown in FIG. Becomes
【００１２】 また、帯電制御原理を利用したマーキング機器によって帯電させた塗料微粒子 を吹き付けることにより、オネジ11の凹凸状の外周面に側面視直線状の締付け位 置目印線７を付設出来る。Further, by spraying the paint particles charged by the marking device using the charging control principle, the tightening position marking line 7 which is linear in a side view can be attached to the uneven outer peripheral surface of the male screw 11.
【００１３】 次に、（図１にもどって）被接続パイプ３は円筒パイプ状であり、その円筒部 である本体部13の接続側の端部には、上記テーパ部８と略同一角度で先端拡大状 の円錐台形状にフレア加工されたフレア部２が形成されている。Next (returning to FIG. 1), the connected pipe 3 is in the shape of a cylindrical pipe, and the end of the cylindrical main body 13 on the connection side is at substantially the same angle as the tapered portion 8. A flared portion 2 flared into a truncated cone shape with an enlarged tip is formed.
【００１４】 また、袋ナット６は軸方向に短寸であり、その外周面は六角形状に形成される 。The cap nut 6 is short in the axial direction, and its outer peripheral surface is formed in a hexagonal shape.
【００１５】 そして、袋ナット６の一端側の開口部近傍の内周面には、上記継手本体１のオ ネジ11に螺着される所定長さのメネジ12が形成される。さらに、その他端側には 、被接続パイプ３の本体部13が挿通される一端側の開口部よりもやや小径なる孔 部９が貫設される。On the inner peripheral surface near the opening on the one end side of the cap nut 6, a female screw 12 of a predetermined length screwed to the male screw 11 of the joint body 1 is formed. Further, on the other end side, a hole 9 having a diameter slightly smaller than the opening on the one end side through which the main body 13 of the connected pipe 3 is inserted is provided.
【００１６】 また、摺動リング４は平板円環状であり、被接続パイプ３の本体部13よりも僅 かに大なる内径寸法を有している。Further, the sliding ring 4 has a flat plate annular shape and has an inner diameter dimension slightly larger than the main body portion 13 of the connected pipe 3.
【００１７】 次に、弾性シール材５はリング状であり、その内周面には、被接続パイプ３の フレア部２と略同一角度の傾斜面10が設けられる。そして、その傾斜面10の大径 側の内周面の径寸法は、フレア部２の先端部の径寸法よりも僅かに大とされ、傾 斜面10の小径側の内周面の径寸法は、被接続パイプ３の本体部13の外径寸法より も僅かに大とされる。Next, the elastic seal material 5 is ring-shaped, and an inclined surface 10 having substantially the same angle as the flare portion 2 of the connected pipe 3 is provided on the inner peripheral surface thereof. The diameter of the inner peripheral surface on the large diameter side of the inclined surface 10 is slightly larger than the diameter of the tip portion of the flare portion 2, and the diameter of the inner peripheral surface on the small diameter side of the inclined surface 10 is The outer diameter of the main body 13 of the connected pipe 3 is slightly larger.
【００１８】 また、この実施例の管継手は、継手本体１のオネジ11に、袋ナット６のメネジ 12を螺着させて締付けることにより、被接続パイプ３のフレア部２の内周面を、 継手本体１のテーパ部８の外周面に当接させ、かつ、該当接部位（継手部位）の 外周面を弾性シール材５にて密閉状に連結するものであるが、継手本体１のオネ ジ11に付設される上記締付け位置目印線７は、この弾性シール材５を適正な圧縮 率まで圧縮して、密閉度を規定以上にするための目印である。Further, in the pipe joint of this embodiment, the inner peripheral surface of the flare portion 2 of the connected pipe 3 is fixed by screwing the male screw 12 of the cap nut 6 to the male screw 11 of the joint body 1 and tightening it. The outer peripheral surface of the tapered portion 8 of the joint body 1 is abutted, and the outer peripheral surface of the corresponding contact portion (joint portion) is hermetically connected by the elastic seal material 5. The tightening position mark line 7 attached to 11 is a mark for compressing the elastic seal material 5 to an appropriate compression rate to make the degree of sealing higher than the specified value.
【００１９】 即ち、図３と図４に示す如く、上記締付け位置目印線７は、継手本体１のオネ ジ11に、袋ナット６のメネジ12を螺着・螺進させて、弾性シール材５が最適の密 封性能を発揮する適正な圧縮率となる袋ナット６の位置を、予め示している。つ まり、該袋ナット６の周壁の接続側端縁14とオネジ11の外周面上のこの締付け位 置目印線７とが、側面視にて一致する。That is, as shown in FIG. 3 and FIG. 4, the tightening position marking line 7 is such that the female thread 12 of the cap nut 6 is screwed onto and advanced to the male piece 11 of the joint body 1 to make the elastic seal member 5 Indicates the position of the cap nut 6 that has an appropriate compression ratio that provides the optimum sealing performance. That is, the connection side edge 14 of the peripheral wall of the cap nut 6 and the tightening position marking line 7 on the outer peripheral surface of the male screw 11 are aligned in a side view.
【００２０】 なお、上記締付け位置目印線７の色は特に指定していないが、赤色等の目立つ 色とするのが望ましい。The color of the tightening position mark line 7 is not specified, but it is desirable to set it to a prominent color such as red.
【００２１】 しかして、この実施例の管継手の組み立て・締付け作業の過程を説明する。The process of assembling and tightening the pipe joint of this embodiment will be described.
【００２２】 まず、摺動リング４を、袋ナット６の大径側の開口部から挿入し、孔部９の内 方開口部の周囲に当接させる。First, the sliding ring 4 is inserted from the opening on the large diameter side of the cap nut 6 and brought into contact with the periphery of the inner opening of the hole 9.
【００２３】 次に、袋ナット６の大径側の開口部から弾性シール材５を挿入し、摺動リング ４に当接させる。Next, the elastic seal material 5 is inserted from the opening portion on the large diameter side of the cap nut 6 and brought into contact with the sliding ring 4.
【００２４】 そして、被接続パイプ３の本体部13を袋ナット６の孔部９に挿入し、フレア加 工治具にて、該本体部13の接続側の端部を、フレア加工してフレア部２を形成す る。Then, the main body 13 of the connected pipe 3 is inserted into the hole 9 of the cap nut 6, and a flare processing jig is used to flare the end of the main body 13 on the connection side. Form part 2.
【００２５】 次に、該継手本体１のオネジ11に、袋ナット６のメネジ12を螺着・螺進させ、 フレア部２の内周面を、継手本体１のテーパ部８に当接させる。Next, the female thread 12 of the cap nut 6 is screwed onto the male thread 11 of the joint body 1 and is advanced to bring the inner peripheral surface of the flare portion 2 into contact with the tapered portion 8 of the joint body 1.
【００２６】 さらに、袋ナット６を螺進させると、被接続パイプ３のフレア部２及び継手本 体１のテーパ部８の外周面の一部が、弾性シール材５の内周面に当接し、弾性シ ール材５は、弾性変形しつつ該フレア部２及びテーパ部８の当接部分を密閉する 。Further, when the cap nut 6 is further threaded, a part of the outer peripheral surface of the flare portion 2 of the connected pipe 3 and the taper portion 8 of the joint body 1 comes into contact with the inner peripheral surface of the elastic seal material 5. The elastic seal member 5 seals the abutting portions of the flare portion 2 and the taper portion 8 while elastically deforming.
【００２７】 そして、図３及び図４に示すように、袋ナット６の周壁の接続側端縁14とオネ ジ11の継手本体１の締付け位置目印線７が略一致した位置で、袋ナット６の螺進 を止める。この位置で、弾性シール材５が最適の密封性能を発揮し、組み立て・ 締付け作業は完了する。Then, as shown in FIGS. 3 and 4, at the position where the connection side edge 14 of the peripheral wall of the cap nut 6 and the tightening position mark line 7 of the joint body 1 of the one piece 11 are substantially aligned with each other. Stop screwing. At this position, the elastic sealing material 5 exerts the optimum sealing performance, and the assembling and tightening work is completed.
【００２８】 なお、この実施例の管継手は、上記以外にも設計変更自由であり、例えば、摺 動リング４を有していないものとするも好ましい。Note that the pipe joint of this embodiment can be freely modified in design other than the above, and it is also preferable that the pipe joint does not have the sliding ring 4, for example.
【００２９】 また、図５は、本考案に係る他の実施例の管継手を示し、この管継手は、所定 位置に締付け位置目印線７が付設されたオネジ11を有する継手本体１と、メネジ 12を有し継手本体１と螺合する袋ナット６と、継手本体１のテーパ部８と被接続 パイプ３のフレア部２の間に介装される円錐台形状の弾性シール材15と、から成 っている。FIG. 5 shows a pipe joint of another embodiment according to the present invention. This pipe joint has a joint body 1 having a male screw 11 provided with a tightening position mark line 7 at a predetermined position, and a female screw joint. From a cap nut 6 having 12 and screwed with the joint body 1, and a truncated cone-shaped elastic seal member 15 interposed between the tapered portion 8 of the joint body 1 and the flare portion 2 of the connected pipe 3. Is made.
【００３０】[0030]
本考案は、上述の如く構成されるので、次に記載する効果を奏する。 Since the present invention is configured as described above, it has the following effects.
【００３１】 オネジ11に対してメネジ12を締付けるべき度合いを、締付け位置目印線７にて 容易に確認出来るため、トルクレンチ等を使用しなくても締付け作業が容易に出 来、従って、施工時間が短く出来る。Since the degree to which the female screw 12 should be tightened with respect to the male screw 11 can be easily confirmed with the tightening position mark line 7, the tightening work can be easily performed without using a torque wrench or the like. Can be shortened.
【００３２】 また、オネジ11のメネジ12に対する螺入深さは、ネジの接触面の表面粗さや潤 滑状態に影響されないため、締付け力（弾性シール材５による密閉度）に大きな バラツキが生じない。Further, since the screwing depth of the male screw 11 with respect to the female screw 12 is not affected by the surface roughness and the sliding state of the contact surface of the screw, the tightening force (sealing degree by the elastic sealing material 5) does not vary greatly. .
【００３３】 さらに、インクジェットプリントによりマーキングするため、締付け位置目印 線７をオネジ11の凹凸状の外周面に直線状に付設出来る。Further, since the marking is performed by inkjet printing, the tightening position marking line 7 can be linearly attached to the uneven outer peripheral surface of the male screw 11.
【図１】本考案の一実施例を示す半截側面図である。FIG. 1 is a half side view showing an embodiment of the present invention.
【図２】継手本体１の要部拡大側面図である。FIG. 2 is an enlarged side view of a main part of the joint body 1.
【図３】本考案の一実施例の締付け状態を示す半截側面
図である。FIG. 3 is a side view showing the state of tightening according to an embodiment of the present invention.
【図４】締付け状態を示す要部の拡大断面図である。FIG. 4 is an enlarged cross-sectional view of a main part showing a tightened state.
【図５】本考案の他の実施例を示す半截側面図である。FIG. 5 is a half side view showing another embodiment of the present invention.
７ 締付け位置目印線 11 オネジ 12 メネジ 7 Tightening position mark line 11 Male screw 12 Female screw
Claims (1)
に於いて、オネジ11の外周面に輪切り状にインクジェッ
トプリントにて締付け位置目印線７を付設したことを特
徴とする管継手。[Claims for utility model registration] [Claim 1] In a pipe joint tightened with a male screw 11 and a female screw 12, a tightening position mark line 7 is attached to the outer circumferential surface of the male screw 11 by inkjet printing in a circular shape. A characteristic pipe joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6001791U JPH053775U (en) | 1991-07-03 | 1991-07-03 | Pipe fitting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6001791U JPH053775U (en) | 1991-07-03 | 1991-07-03 | Pipe fitting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH053775U true JPH053775U (en) | 1993-01-22 |
Family
ID=13129873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6001791U Pending JPH053775U (en) | 1991-07-03 | 1991-07-03 | Pipe fitting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH053775U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007192720A (en) * | 2006-01-20 | 2007-08-02 | Honda Motor Co Ltd | Control panel device |
| KR20160003094U (en) * | 2015-03-03 | 2016-09-19 | 주식회사유한훌로텍 | Coupling structure of tube |
-
1991
- 1991-07-03 JP JP6001791U patent/JPH053775U/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007192720A (en) * | 2006-01-20 | 2007-08-02 | Honda Motor Co Ltd | Control panel device |
| KR20160003094U (en) * | 2015-03-03 | 2016-09-19 | 주식회사유한훌로텍 | Coupling structure of tube |
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| JPH0410466Y2 (en) | ||
| JPH0125776Y2 (en) | ||
| JPS6344639Y2 (en) | ||
| JPH0416048Y2 (en) | ||
| JPH0343512Y2 (en) | ||
| JPH06346994A (en) | Pipe joint | |
| JPH0310466Y2 (en) | ||
| GB1018227A (en) | End fitting for attachment to a conduit |