DE3712260A1 - FITTING FROM A MOLDED MATERIAL - Google Patents

FITTING FROM A MOLDED MATERIAL

Info

Publication number
DE3712260A1
DE3712260A1 DE19873712260 DE3712260A DE3712260A1 DE 3712260 A1 DE3712260 A1 DE 3712260A1 DE 19873712260 DE19873712260 DE 19873712260 DE 3712260 A DE3712260 A DE 3712260A DE 3712260 A1 DE3712260 A1 DE 3712260A1
Authority
DE
Germany
Prior art keywords
fitting
coupling
pipe
designed
octagon
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.)
Granted
Application number
DE19873712260
Other languages
German (de)
Other versions
DE3712260C2 (en
Inventor
Eugene Dipl Ing Szederjei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Georg Fischer AG
Original Assignee
Georg Fischer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Georg Fischer AG filed Critical Georg Fischer AG
Publication of DE3712260A1 publication Critical patent/DE3712260A1/en
Application granted granted Critical
Publication of DE3712260C2 publication Critical patent/DE3712260C2/de
Granted legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L15/00Screw-threaded joints; Forms of screw-threads for such joints
    • F16L15/006Screw-threaded joints; Forms of screw-threads for such joints with straight threads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C33/00Moulds or cores; Details thereof or accessories therefor
    • B29C33/005Moulds or cores; Details thereof or accessories therefor characterised by the location of the parting line of the mould parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C39/00Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2001/00Articles provided with screw threads
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00Other particular articles
    • B29L2031/24Pipe joints or couplings

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Valve Housings (AREA)
  • Clamps And Clips (AREA)

Abstract

There is disclosed a pipe coupling 1,which may be a straight coupling, a bend or a T-piece, and which has at least one internal-thread 3 for connecting the coupling to a pipe end of a pipeline. A polygonal head 4 is formed externally on the coupling in the neighbourhood of the internal thread 3, for engagement by a pipe wrench to connect, or disconnect the coupling with respect to the pipe end. The pipe coupling is formed in a mould such that two corners 7 of an octagonal head 4 are arranged along the mould parting plane, to permit ready removal of the coupling. <IMAGE>

Description

Die Erfindung betrifft einen Fitting aus einem Gusswerk­ stoff wie er im Oberbegriff von Anspruch 1 gekennzeichnet ist.The invention relates to a fitting from a casting plant Substance as characterized in the preamble of claim 1 is.

Die bekannten gegossenen Fittings bzw. Formstücke zum Verbinden von Rohrleitungen, welche vorzugsweise aus Temperguss hergestellt sind, weisen eine quer zur jeweiligen Rohrachse runde Gestalt auf, wobei an dem mit einem Innengewinde versehenen Ende ein Verstärkungsrand bzw. Bördel angeordnet ist.The known cast fittings or fittings for Connecting pipes, which are preferably made of Malleable cast iron are produced, have a cross to each pipe axis round shape, with on the with an internally threaded end a reinforcing edge or flare is arranged.

Das feste Verschrauben mit einer Rohrleitung ist nur mit einer Rohrzange möglich, wodurch Beschädigungen der Zink- Beschichtung entstehen können. Ein Lösen des Fittings bei älteren Rohrleitungssystemen ist oft nicht ohne Beschädigung des Fittings möglich.Fixed screwing to a pipe is only possible with pipe wrench possible, which can damage the zinc Coating can arise. Loosening the fitting at Older piping systems are often not without damage of the fitting possible.

Aufgabe der vorliegenden Erfindung ist die Schaffung eines Fittings der eingangs genannten Art, welcher ohne Beschä­ digung montier- und demontierbar ist, als Gussteil gut entformbar ist und durch seine einfache Form rationell im Giessverfahren herstellbar ist.The object of the present invention is to create a Fittings of the type mentioned, which without is easy to assemble and disassemble, as a casting is demoldable and rational due to its simple shape  can be produced in the casting process.

Erfindungsgemäss wird dies durch die kennzeichnenden Merk­ male von Anspruch 1 gelöst.According to the invention, this is achieved by the characterizing note male solved by claim 1.

Besonders vorteilhafte Ausführungsformen sind in den ab­ hängigen Ansprüchen gekennzeichnet.Particularly advantageous embodiments are in the pending claims.

Die Erfindung ist in mehreren Ausfühungsbeispielen in den beiliegenden Zeichnungen dargestellt und nachfolgend be­ schrieben.The invention is in several exemplary embodiments in the shown accompanying drawings and below be wrote.

Es zeigen:Show it:

Fig. 1 ein als Reduziermuffe ausge­ bildeter Fitting teils im Längsschnitt, Fig. 1 a out as Reduziermuffe imaginary fitting partly in longitudinal section,

Fig. 2 ein Schnitt entlang der Linie II-II von Fig. 1 FIG. 2 shows a section along the line II-II from FIG. 1

Fig. 3 ein Schnitt entlang der Linie III-III von Fig. 1, Fig. 3 is a section along the line III-III of Fig. 1,

Fig. 4 ein als T-Stück ausgebildeter Fitting teils im Schnitt, Fig. 4 designed as a T-piece fitting partly in section,

Fig. 5 eine Seitenansicht von Fig. 4, Fig. 5 is a side view of Fig. 4,

Fig. 6 ein als Winkel mit zwei Innengewinden ausgebildeter Fitting teils im Schnitt, Fig. 6 designed as a bracket with two internal threads fitting partly in section,

Fig. 7 eine Seitenansicht von Fig. 6, Fig. 7 is a side view of Fig. 6,

Fig. 8 ein als Winkel mit einem Innengewinde und einem Aussengewinde ausgebildeter Fitting teils im Schnitt und Fig. 8 a fitting designed as an angle with an internal thread and an external thread, partly in section and

Fig. 9 eine Seitenansicht von Fig. 8. Fig. 9 is a side view of Fig. 8.

Die Fig. 1 bis 3 zeigen einen als Reduziermuffe 2 ausgebildeten Fitting 1, welcher zwei Innengewinde 3 a und 3 b mit unterschiedlichem Durchmesser aufweist. Die Aussen­ kontur der geraden Verschraubung ist achteckig ausgebildet, wobei ein grösserer Achtkant 4 a im Bereich des grösseren Innengewindes 3 a und ein kleiner Achtkant 4 b im Bereich des kleineren Innengewindes 3 b angeordnet ist. Der Uebergang 5 zwischen den beiden Achtkanten 4 a, 4 b ist kegelförmig aus­ gebildet. Figs. 1 to 3 show a reducer configured as 2 fitting 1, which has two inner thread 3 a and 3 b having different diameters has. The outer contour of the straight screw connection is octagonal, with a larger octagon 4 a in the area of the larger internal thread 3 a and a small octagon 4 b in the area of the smaller internal thread 3 b . The transition 5 between the two octagons 4 a , 4 b is conical.

Die Fig. 4 und 5 zeigen ein als T-Stück 10 mit drei gleichen Innengewinden 3 ausgebildeten Fitting 1, deren Aussenkontur im Bereich der Innengewinde 3 als Achtkant 4 ausgebildet ist. Die zwischen den Achtkanten befindliche Partie 11 der Aussenkontur ist im Querschnitt rund aus­ gebildet, wobei deren Aussendurchmesser dem Eckmass des Achtkantes 4 entspricht. FIGS. 4 and 5 show a fitting constructed as a T-piece 10 with three identical internal threads 3 1 whose outer contour is formed in the region of the inner thread 3 as an octagonal 4. The section 11 is located between the eight edges of the outer contour is formed in cross-section from about where the outside diameter corresponds to the width across corners of the octagon. 4

Fig. 6 und 7 zeigen einen als Winkel 20 mit zwei gleichen Innengewinden 3 ausgebildeten Fitting 1, wobei dei Aussen­ kontur ebenfalls in dem Bereich der Innengewinde 3 einen Achtkant 4 aufweist. Der bogenförmige Teil 21 ist im Quer­ schnitt rund ausgebildet, wobei der Aussendruchmesser dem Eckmass des Achtkantes entspricht. FIGS. 6 and 7 show a as the angle 20 formed with two equal internal threads 3 fitting 1, wherein dei having outer contour also in the region of the inner thread 3 of an octagon. 4 The arcuate part 21 is round in cross section, the outer diameter corresponding to the corner dimension of the octagon.

Die Fig. 8 und 9 zeigen ebenfalls einen Winkel 20, wobei an einem Ende ein Innengewinde 3 und am anderen Ende ein Aussengewinde 6 angeordnet ist. Die Aussenkontur ist im Bereich des Innengewindes mit einem Achtkant 4 versehen, wobei der bogenförmige Teil 21 wie bei Fig. 6 im Quer­ schnitt rund ausgebildet ist. FIGS. 8 and 9 also show an angle 20, which is disposed at one end an internal thread 3 and at the other end an external thread 6. The outer contour is provided in the area of the internal thread with an octagon 4 , the arcuate part 21 being round in cross section as in FIG. 6.

Selbstverständlich können die T-Stücke und Winkel auch mit im Durchmesser unterschiedlichen Innen- und/oder Aussen­ gewinden versehen sein, wobei jeweils mindestens im Be­ reich der Innengewinde die Aussenkontur als Mehrkant, vorzugsweise als Achtkant, ausgebildet ist.Of course, the T-pieces and angles can also be used different in diameter inside and / or outside be provided with threads, each at least in the loading if the internal thread has the outer contour as a polygon, is preferably designed as an octagon.

Der Achtkant ist dabei jeweils so angeordnet, dass zwei gegenüberliegende Ecken 7 in der Formtrennebene der Giess­ form zu liegen kommen (siehe Fig. 2, 3 und 5). Dies er­ ermöglicht ein einwandfreies Entformen der Gussteile und die Schlüsselflächen können zueinander parallel ausgebildet werden, wodurch eine mechanische Bearbeitung der Flächen entfällt.The octagon is arranged such that two opposite corners 7 come to lie in the mold parting plane of the casting mold (see FIGS. 2, 3 and 5). This enables the cast parts to be removed from the mold properly and the key surfaces can be formed parallel to one another, thereby eliminating mechanical machining of the surfaces.

Vorzugsweise werden die Fittings aus Temperguss hergestellt und anschliessend verzinkt.The fittings are preferably made from malleable cast iron and then galvanized.

Claims (6)

1. Fitting aus einem Gusswerkstoff mit mindestens einem Innengewinde, dadurch gekennzeichnet, dass mindestens im Bereich des Innengewindes (3) der Fitting (1) an der Aussenkontur mit einem Mehrkant (4) versehen ist.1. Fitting made of a cast material with at least one internal thread, characterized in that the fitting ( 1 ) is provided with a polygon ( 4 ) on the outer contour at least in the area of the internal thread ( 3 ). 2. Fitting nach Anspruch 1, dadurch gekennzeichnet, dass der Mehrkant (4) als Achtkant ausgebildet ist.2. Fitting according to claim 1, characterized in that the polygon ( 4 ) is designed as an octagon. 3. Fitting nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass er als Winkel oder Bogen (20) ausgebildet ist.3. Fitting according to claim 1 or 2, characterized in that it is designed as an angle or arc ( 20 ). 4. Fitting nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass er als T-Stück (10) ausgebildet ist.4. Fitting according to claim 1 or 2, characterized in that it is designed as a T-piece ( 10 ). 5. Fitting nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass er als gerade Muffe (2) mit im Durchmesser gleichen oder unterschiedlichen Gewinden ausgebildet ist.5. Fitting according to claim 1 or 2, characterized in that it is designed as a straight sleeve ( 2 ) with the same or different threads in diameter. 6. Fitting nach einem der Ansprüche 2 bis 5, dadurch ge­ kennzeichnet, dass der Achtkant (4) derart angeordnet ist, dass zwei gegenüberliegende Ecken (7) in der Form­ trennebene der Giessform für den Fitting zu liegen kommen.6. Fitting according to one of claims 2 to 5, characterized in that the octagon ( 4 ) is arranged such that two opposite corners ( 7 ) come to lie in the mold parting plane of the mold for the fitting.
DE19873712260 1986-05-16 1987-04-10 FITTING FROM A MOLDED MATERIAL Granted DE3712260A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2004/86A CH670144A5 (en) 1986-05-16 1986-05-16

Publications (2)

Publication Number Publication Date
DE3712260A1 true DE3712260A1 (en) 1987-11-19
DE3712260C2 DE3712260C2 (en) 1988-12-15

Family

ID=4223648

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873712260 Granted DE3712260A1 (en) 1986-05-16 1987-04-10 FITTING FROM A MOLDED MATERIAL

Country Status (7)

Country Link
JP (1) JPS62274187A (en)
AT (1) AT394430B (en)
CH (1) CH670144A5 (en)
DE (1) DE3712260A1 (en)
ES (1) ES2003059A6 (en)
GB (1) GB2190446A (en)
IT (1) IT1204564B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2263696B (en) * 1989-09-22 1994-05-11 British Gas Plc Sealant
DE19851723A1 (en) * 1998-11-10 2000-05-11 Seppelfricke Armaturen Gmbh & Angle member for connecting to a tap fitting such as a water meter has one arm with external thread at one end adjoined by stop whilst second arm has flange for fixing screw-on nut at one end and second stop in middle

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1780402A (en) * 1928-07-30 1930-11-04 Joseph A Recko Pipe fitting
US1860604A (en) * 1929-01-04 1932-05-31 Albert J Weatherhead Jr Method of making pipe couplings or fittings
US3035602A (en) * 1957-04-01 1962-05-22 Loren G Johnson Angle stop
US3441292A (en) * 1965-06-08 1969-04-29 Westinghouse Bremsen Apparate Pipefitting
DE1805641A1 (en) * 1968-10-28 1970-05-21 Julius Koleszar Elbow for pipes
DE1650228B2 (en) * 1967-02-18 1974-01-10 Usui Kokusai Sangyo K.K., Sunto, Shizuoka (Japan) Line coupling for connecting pipelines
DE2734422A1 (en) * 1976-09-30 1978-04-06 Salanon S A CONNECTING DEVICE FOR PIPES AND LINES

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE801243C (en) * 1948-10-27 1950-12-28 Hans Kreidel T-piece for pipe fittings
GB908930A (en) * 1958-01-07 1962-10-24 Ruhrchemie Ag Pipe connectors and fittings
GB929938A (en) * 1959-03-02 1963-06-26 Frank Hubert Evans Improvements in or relating to devices for recharging gas reservoirs of pyrophoric lighters
GB880282A (en) * 1960-08-09 1961-10-18 Gilbert Thomas Lyon Pipe coupling for fluid pressure systems
GB996700A (en) * 1964-06-10 1965-06-30 Ford Motor Co Improvements in methods of casting
US3319742A (en) * 1965-04-07 1967-05-16 Rockwell Standard Co Torque actuated brake system
JPS546617B1 (en) * 1966-05-27 1979-03-30
GB1397396A (en) * 1971-09-04 1975-06-11 Felten & Guilleaume Kabelwerk Connection for plastics-lined metal pipes
US4156540A (en) * 1977-08-30 1979-05-29 Parker-Hannifin Corporation Sealant for hose fittings
GB2030490B (en) * 1978-09-26 1982-09-22 Bowman H Multi part ingot mould
US4586732A (en) * 1984-02-17 1986-05-06 Alltech Associates, Inc. Connector for liquid chromatography devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1780402A (en) * 1928-07-30 1930-11-04 Joseph A Recko Pipe fitting
US1860604A (en) * 1929-01-04 1932-05-31 Albert J Weatherhead Jr Method of making pipe couplings or fittings
US3035602A (en) * 1957-04-01 1962-05-22 Loren G Johnson Angle stop
US3441292A (en) * 1965-06-08 1969-04-29 Westinghouse Bremsen Apparate Pipefitting
DE1650228B2 (en) * 1967-02-18 1974-01-10 Usui Kokusai Sangyo K.K., Sunto, Shizuoka (Japan) Line coupling for connecting pipelines
DE1805641A1 (en) * 1968-10-28 1970-05-21 Julius Koleszar Elbow for pipes
DE2734422A1 (en) * 1976-09-30 1978-04-06 Salanon S A CONNECTING DEVICE FOR PIPES AND LINES

Also Published As

Publication number Publication date
GB8709560D0 (en) 1987-05-28
ATA94387A (en) 1991-09-15
CH670144A5 (en) 1989-05-12
JPS62274187A (en) 1987-11-28
IT1204564B (en) 1989-03-10
AT394430B (en) 1992-03-25
GB2190446A (en) 1987-11-18
IT8720399A0 (en) 1987-05-06
DE3712260C2 (en) 1988-12-15
ES2003059A6 (en) 1988-10-01

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8110 Request for examination paragraph 44
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee