JP2791491B2 - Pipe end face protection device and its mounting method - Google Patents
Pipe end face protection device and its mounting methodInfo
- Publication number
- JP2791491B2 JP2791491B2 JP1096132A JP9613289A JP2791491B2 JP 2791491 B2 JP2791491 B2 JP 2791491B2 JP 1096132 A JP1096132 A JP 1096132A JP 9613289 A JP9613289 A JP 9613289A JP 2791491 B2 JP2791491 B2 JP 2791491B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe end
- pipe
- face
- piece
- joining
- 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 - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、鋼管をはじめとする管の端面を保護する為
に用いる管端面保護具の取付方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of attaching a pipe end face protector used to protect an end face of a pipe such as a steel pipe.
従来の管端面保護具としては、実公昭57−35017号公
報に記載の管端面保護具が知られており、該管端面保護
具10は、第7図に示すように、両端開口状の短円筒体11
の片端面に鍔12を設け、該短円筒体11の外周面には頂部
13が鍔側に向くように打抜き爪14を複数個立ち上がらし
め、しかも短円筒体1の一部に切れ目15を設け、該切れ
目15の部分に湾曲状の山形片16を設けて構成されてい
た。As a conventional pipe end face protector, there is known a pipe end face protector described in Japanese Utility Model Publication No. 57-35017, and as shown in FIG. Cylindrical body 11
A flange 12 is provided on one end surface of the
A plurality of punching claws 14 are raised so that 13 faces the flange side, and a cut 15 is provided in a part of the short cylindrical body 1, and a curved chevron 16 is provided in the cut 15. .
そして、この管端面保護具10を使用する場合には、通
常は前記打ち抜き爪14を用いて受け止めを行うが、抜き
爪14が十分な締付けの用を果さない場合には、山形片16
を木ハンマー等で叩いて拡径させて該管端面保護具10を
管17に固定するようになっていた。When the pipe end face protector 10 is used, the receiving is usually performed by using the punching claw 14, but when the punching claw 14 does not perform sufficient tightening, the chevron 16 is used.
The pipe end face protector 10 is fixed to the pipe 17 by tapping the pipe end with a wooden hammer or the like.
〔発明が解決しようとする問題点〕 しかしながら、通常管は外径を基準にして製造され、
その厚みが異なる場合内径が大きく異なることになり、
前記管端面保護具10は内径の略同一な管に対しては使用
できるが、管の肉厚が異なる為に内径が異なる管の管端
面保護具としては使用できないという問題点があった。[Problems to be solved by the invention] However, pipes are usually manufactured based on the outer diameter,
If the thickness is different, the inner diameter will be greatly different,
Although the pipe end face protector 10 can be used for pipes having substantially the same inner diameter, there is a problem that it cannot be used as a pipe end face protector for pipes having different inner diameters because the pipes have different wall thicknesses.
本発明はこのような事情に鑑みてなされたもので、内
径が多少異なる管であっても、一定の調整幅を有しその
取付け及び取り外しが容易な管端面保護具の取付方法を
提供することを目的とする。The present invention has been made in view of such circumstances, and provides a method of attaching a pipe end face protector that has a fixed adjustment width and is easy to attach and detach even for tubes having slightly different inner diameters. With the goal.
前記目的に沿う請求項1記載の管端面保護具の取付方
法は、一端に鍔部が形成され、接合部が移動可能に重合
する筒状体の接合部内側に、それぞれ突出する支持部材
を介して対向して重合する接合片を有する管端面保護具
を、保護を行う管の端に装着した後、対向する前記支持
部材と前記接合片によって形成される内側空間部に、シ
リンダーによって開閉駆動される左右対となる移動片を
装入して、該左右対となる移動片を広げて、前記筒状体
を前記管の内側に押圧固定した状態で、前記重合する接
合片を押圧爪を有する噛合固定手段によって固着してい
る。The mounting method of the pipe end face protection device according to claim 1, which meets the above object, is characterized in that a flange is formed at one end, and via a supporting member that protrudes inside the joining portion of the cylindrical body where the joining portion is movably overlapped. After attaching the pipe end face protective device having the joint piece facing and overlapping to the end of the tube to be protected, the cylinder is opened and closed by the cylinder in the inner space formed by the opposed support member and the joint piece. The moving piece forming the left and right pair is inserted, the moving piece forming the left and right pair is expanded, and the joining piece to be superimposed has a pressing claw in a state where the tubular body is pressed and fixed inside the tube. It is fixed by mesh fixing means.
請求項1記載の管端面保護具の取付方法は、管端面保
護具の筒状体の接合部が移動可能に重合し、しかも該接
合部内側には支持部材を介して対向して重合する接合片
が形成されているので、支持部材の部分に治具によって
拡張させた後、接合片を固着することによって、該管端
面保護具の幅広い外径の拡縮が可能となり、これによっ
て肉厚の異なる管であっても内径に合わせて該管端面保
護具を取付けることが可能となる。In the method of attaching a pipe end face protector according to claim 1, the joining portion of the tubular body of the pipe end face protector is movably overlapped, and the inside of the joined portion is opposed and overlapped via a support member. Since the piece is formed, after expanding the portion of the support member with a jig, and fixing the joining piece, it becomes possible to expand and contract a wide outer diameter of the pipe end face protection device, thereby changing the wall thickness. Even in the case of a pipe, it becomes possible to mount the pipe end face protection device according to the inner diameter.
そして対向する支持部材と接合片によって形成される
内側空間部に、シリンダーによって開閉駆動される左右
対となる移動片を装入して、該左右対となる移動片を広
げて、筒状体を管の内側に押圧固定した状態で、重合す
る重合片を押圧爪を有する噛合固定手段によって固着し
ているので、その操作が極めて簡単であって、これによ
って接合片が固着され、筒状体の外径が決定される。Then, into the inner space formed by the opposing support member and the joining piece, a pair of left and right moving pieces driven to be opened and closed by a cylinder is inserted, and the left and right pair of moving pieces are expanded to form a cylindrical body. Since the polymerized piece to be polymerized is fixed by meshing fixing means having a pressing claw in a state of being fixedly fixed to the inside of the tube, the operation is extremely simple. The outer diameter is determined.
続いて、添付した図面を参照しつつ、本発明を具体化
した実施例につき説明し、本発明の理解に供する。Next, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention.
ここに、第1図は本発明の一実施例に使用する管端面
保護具の斜視図、第2図は同部分断面図、第3図は同部
分斜視図、第4図は前記管端面保護具を管に取付ける治
具の側面図、第5図は同平面図、第6図は同部分正面図
である。FIG. 1 is a perspective view of a pipe end face protector used in one embodiment of the present invention, FIG. 2 is a partial sectional view of the same, FIG. 3 is a partial perspective view of the same, and FIG. FIG. 5 is a plan view of the jig for attaching the jig to the tube, FIG. 5 is a plan view of the jig, and FIG.
第1図、第2図に示すように本発明の一実施例に使用
する管端面保護具20は、0.8〜1.6mm厚み程度の通常の鉄
板によって構成され、接合部21、22が重合した短い筒状
体23の端部に鍔部24を折り曲げ形成し、前記筒状体23の
接合部21、22にはそれぞれ支持部材25、26を介して接合
片27、28がプレス加工によって押し出し成形されてい
る。As shown in FIG. 1 and FIG. 2, the pipe end face protector 20 used in one embodiment of the present invention is formed of a normal iron plate having a thickness of about 0.8 to 1.6 mm, and has a short joint 21 and 22 which are overlapped. A flange 24 is formed by bending at the end of the cylindrical body 23, and bonding pieces 27 and 28 are extruded and formed by press working at the joints 21 and 22 of the cylindrical body 23 via support members 25 and 26, respectively. ing.
なお、前記筒状体23は保護しようとする管29の内径近
傍にその直径が決定され、前記重合する接合部21、22の
部分を摺動させて管29の内径に一致するようになってい
るものとする。The diameter of the tubular body 23 is determined in the vicinity of the inner diameter of the pipe 29 to be protected, and the overlapping portions 21 and 22 are slid so as to match the inner diameter of the pipe 29. Shall be
前記支持部材25、26は中央に突っ張り部30、31をそれ
ぞれ有し、該支持部材25、26を第2図に2点鎖線で示す
ように移動片32、33で横方向に拡げても該支持部材25、
26が筒状体23に対して曲がらないようになっている。The support members 25 and 26 have a strut 30 and 31 respectively at the center, and even if the support members 25 and 26 are expanded laterally by moving pieces 32 and 33 as shown by a two-dot chain line in FIG. Support member 25,
26 does not bend with respect to the cylindrical body 23.
次に、第4図〜第6図に示す該管端面保護具20を管29
の端部に取付ける治具34について説明すると、該治具34
は左右の移動片32、33を横方向に移動させる拡張手段35
と、該拡張された状態の重合する接合片を固着する噛合
固定手段(通常シーラーともいう)36とを有して構成さ
れている。Next, the pipe end face protector 20 shown in FIGS.
The jig 34 attached to the end of the jig will be described.
Is expansion means 35 for moving the left and right moving pieces 32 and 33 in the horizontal direction.
And a meshing and fixing means (usually also referred to as a sealer) 36 for fixing the joined joint piece in the expanded state.
前記拡張手段35は、両側に出力側に出力軸37、38を有
するシリンダー(油圧、空圧、電動いずれでも可)39に
取付け金物40、41を介して移動片32、33を取付け、所定
の信号によって前記出力軸37、38が伸縮し、移動片32、
33が左右に拡縮するようになっている。The extension means 35 attaches moving pieces 32, 33 via mounting hardware 40, 41 to a cylinder 39 (any of hydraulic, pneumatic, and electric motors) having output shafts 37, 38 on both sides on the output side. The output shafts 37 and 38 expand and contract by the signal, and the moving piece 32,
33 expands and contracts left and right.
前記シリンダー39の取付け架台42に支持部材43、44を
介して噛合固定手段36が取付けられているが、該噛合固
定手段36は上部のシリンダー45と、該シリンダー45によ
って駆動されるリンク機構46を介して回動駆動される並
設された押圧爪47、48と、前記接合片27に当接する保持
金具49とを有して構成され、接合片27を保持金具49に当
接させた状態で、前記シリンダー45を駆動することによ
って押圧爪47、48が回動し、接合片27の一部を切り欠い
て保持金具49に押し当て、第3図に示すように両側から
部分的に折り曲げるようになっている。A mesh fixing means 36 is attached to a mounting base 42 of the cylinder 39 via support members 43 and 44.The mesh fixing means 36 includes an upper cylinder 45 and a link mechanism 46 driven by the cylinder 45. Pressing claws 47, 48 arranged side by side through rotation, and a holding fitting 49 abutting on the joining piece 27, and in a state where the joining piece 27 is in contact with the holding fitting 49. By driving the cylinder 45, the pressing claws 47, 48 are rotated, a part of the joining piece 27 is cut out and pressed against the holding metal fitting 49, and partially bent from both sides as shown in FIG. It has become.
従って、この治具34を使用して、前記管端面保護具20
を管29に取付ける場合には、予め管29の内側に該管端面
保護具20を嵌着させた後、該治具34を使用し、前記管端
面保護具20の支持部材25、26の間に移動片32、33の先端
を挿入し、シリンダー39を駆動して横に移動片32、33を
拡げ、支持部材25、26を横に拡張するようにする。Therefore, using this jig 34, the pipe end face protection device 20
When the pipe end face protector 20 is attached to the pipe 29, the pipe end face protector 20 is previously fitted to the inside of the pipe 29, and then the jig 34 is used. Then, the distal ends of the moving pieces 32 and 33 are inserted, and the cylinder 39 is driven so that the moving pieces 32 and 33 are expanded laterally and the support members 25 and 26 are expanded laterally.
これによって筒状体23の接合部21、22が摺動移動し
て、全体が拡径し管29の内側に該管端面保護具20が押圧
状態で嵌入することになる。As a result, the joints 21 and 22 of the tubular body 23 slide and move, and the entire diameter is enlarged, so that the pipe end face protection device 20 is fitted into the inside of the pipe 29 in a pressed state.
次に、噛合固定手段36を使用し、保持金具48を上部の
接合片27に押しつけた状態で、シリンダー45を駆動する
と、押圧爪47、48が回動して下部の接合片28と重合する
上部の接合片27とを同時に押圧して切欠き、上部に押し
曲げて接合片27、28を固着する。Next, when the cylinder 45 is driven in a state where the holding fitting 48 is pressed against the upper joint piece 27 using the mesh fixing means 36, the pressing claws 47, 48 rotate and overlap with the lower joint piece 28. The upper joint piece 27 is simultaneously pressed and cut, and the upper joint piece 27 is pressed and bent to fix the joint pieces 27 and 28 together.
この後、噛合固定手段36を解除し、移動片32、33を緩
めて治具34を引き抜くことになる。Thereafter, the mesh fixing means 36 is released, the moving pieces 32 and 33 are loosened, and the jig 34 is pulled out.
この実施例においては、前記の如く一体化した治具34
を用いて接合片27、28を固定したが、拡張手段と噛合固
定手段が別々の装置又は治具であってもよい。In this embodiment, the jig 34 integrated as described above is used.
Are used to fix the joining pieces 27 and 28, but the expanding means and the meshing fixing means may be separate devices or jigs.
該管端面保護具20を管29から取り外す場合には固着さ
れた接合片27、28の内側に棒等を挿入して、該接合片2
7、28を内側に曲げれば筒状体23が縮径して、管29の端
部から容易に抜けることになる。When removing the pipe end face protector 20 from the pipe 29, a rod or the like is inserted inside the fixed joint pieces 27 and 28 so that the joint piece 2
If the tubes 7 and 28 are bent inward, the diameter of the tubular body 23 is reduced, and the tubular body 23 is easily removed from the end of the tube 29.
請求項1記載の管端面保護具の取付方法は、筒状体の
接合部に突出する支持部材をシリンダーによって駆動さ
れる移動片を広げることによって、全体が拡径し、更
に、重合する接合片を押圧爪を有する噛合固定手段によ
って固着することによって、簡便に接合片を固定できる
ので、極めてその操作が容易であって、簡単な治具を用
いて自動化が可能となる。The mounting method of the pipe end face protection device according to claim 1, wherein the movable member driven by the cylinder expands the support member protruding from the joint portion of the cylindrical body, so that the entire diameter is increased, and further, the joint member is superimposed. Is fixed by the engagement fixing means having the pressing claw, the joining piece can be easily fixed, so that the operation is extremely easy and automation can be performed using a simple jig.
そして、装着された管端面保護具を管から取り外す場
合には固着された接合片の内側に棒等を挿入して、接合
片を内側に曲げれば筒状体が縮径するので、一旦取付け
られた管端面保護具も、特別な工具あるいは治具等を必
要とすることなく、簡単に取り外すことが可能となる。Then, when removing the attached pipe end face protector from the pipe, insert a rod or the like inside the fixed joint piece and bend it inward to reduce the diameter of the tubular body. The pipe end face protector thus obtained can be easily removed without requiring any special tool or jig.
第1図は本発明の一実施例に係る管端面保護具の斜視
図、第2図は同部分断面図、第3図は同部分斜視図、第
4図は管端面保護具を管に取付ける治具の側面図、第5
図は同平面図、第6図は同部分正面図、第7図は従来例
に係る管端面保護具の斜視図である。 〔符号の説明〕 20……管端面保護具、21、22……接合部、23……筒状
体、24……鍔部、25、26……支持部材、27、28……接合
片、29……管、30、31……突っ張り部、32、33……移動
片、34……治具、35……拡張手段、36……噛合固定手
段、37、38……出力軸、39……シリンダー、40、41……
取付け金物、42……取付け架台、43、44……支持部材、
45……シリンダー、46……リンク機構、47、48……押圧
爪、49……保持金具1 is a perspective view of a pipe end face protector according to an embodiment of the present invention, FIG. 2 is a partial sectional view of the same, FIG. 3 is a partial perspective view of the same, and FIG. Jig side view, 5th
FIG. 6 is a plan view of the same, FIG. 6 is a partial front view of the same, and FIG. 7 is a perspective view of a conventional pipe end face protector. [Explanation of Reference Codes] 20 pipe end face protector, 21, 22 joint, 23 tubular body, 24 flange, 25, 26 support member, 27, 28 joint piece, 29 ... tube, 30, 31 ... strut, 32, 33 ... moving piece, 34 ... jig, 35 ... expansion means, 36 ... meshing fixing means, 37, 38 ... output shaft, 39 ... … Cylinders, 40, 41 ……
Mounting hardware, 42 ... Mounting base, 43, 44 ... Support member,
45 …… Cylinder, 46 …… Link mechanism, 47, 48 …… Pressing claw, 49 …… Holding bracket
───────────────────────────────────────────────────── フロントページの続き (72)発明者 二村 肇 福岡県北九州市八幡東区枝光1―1―1 新日本製鐵株式會社八幡製鐵所内 (56)参考文献 実開 昭61−35296(JP,U) 実公 昭30−13100(JP,Y1) (58)調査した分野(Int.Cl.6,DB名) F16L 57/00 B65D 59/06 B25B 27/14 B25B 27/02──────────────────────────────────────────────────続 き Continuing the front page (72) Inventor Hajime Nimura 1-1-1 Edamitsu, Yawatahigashi-ku, Kitakyushu-city, Fukuoka Prefecture Inside Nippon Steel Corporation Yawata Works (56) References , U) J. 30-13100 (JP, Y1) (58) Fields investigated (Int. Cl. 6 , DB name) F16L 57/00 B65D 59/06 B25B 27/14 B25B 27/02
Claims (1)
に重合する筒状体の接合部内側に、それぞれ突出する支
持部材を介して対向して重合する接合片を有する管端面
保護具を、保護を行う管の端に装着した後、対向する前
記支持部材と前記接合片によって形成される内側空間部
に、シリンダーによって開閉駆動される左右対となる移
動片を装入して、該左右対となる移動片を広げて、前記
筒状体を前記管の内側に押圧固定した状態で、前記重合
する接合片を押圧爪を有する噛合固定手段によって固着
したことを特徴とする管端面保護具の取付方法。1. A tube end face protection having a flange formed at one end and having a joining piece which is opposed to and overlaps via a protruding support member inside a joining portion of a cylindrical body in which a joining portion is movably overlapped. After the tool is attached to the end of the tube to be protected, the left and right pair of moving pieces driven to be opened and closed by a cylinder are inserted into an inner space formed by the opposing support member and the joining piece, A pipe end face wherein the joining piece to be superimposed is fixed by meshing fixing means having a pressing claw in a state where the moving pieces forming the left and right pair are spread and the cylindrical body is pressed and fixed inside the pipe. How to install protective equipment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1096132A JP2791491B2 (en) | 1989-04-14 | 1989-04-14 | Pipe end face protection device and its mounting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1096132A JP2791491B2 (en) | 1989-04-14 | 1989-04-14 | Pipe end face protection device and its mounting method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02274477A JPH02274477A (en) | 1990-11-08 |
JP2791491B2 true JP2791491B2 (en) | 1998-08-27 |
Family
ID=14156866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1096132A Expired - Fee Related JP2791491B2 (en) | 1989-04-14 | 1989-04-14 | Pipe end face protection device and its mounting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2791491B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4503340B2 (en) * | 2004-04-13 | 2010-07-14 | 東亜グラウト工業株式会社 | Existing pipe repair method |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6135296U (en) * | 1984-08-02 | 1986-03-04 | 入江興産株式会社 | Pipe end protector |
-
1989
- 1989-04-14 JP JP1096132A patent/JP2791491B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH02274477A (en) | 1990-11-08 |
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