EP0690754B1 - Handgerät zum ausweiten eines rohrendes - Google Patents

Handgerät zum ausweiten eines rohrendes Download PDF

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Publication number
EP0690754B1
EP0690754B1 EP92924712A EP92924712A EP0690754B1 EP 0690754 B1 EP0690754 B1 EP 0690754B1 EP 92924712 A EP92924712 A EP 92924712A EP 92924712 A EP92924712 A EP 92924712A EP 0690754 B1 EP0690754 B1 EP 0690754B1
Authority
EP
European Patent Office
Prior art keywords
mandrel
jaw
pipe end
pipe
holding
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
Application number
EP92924712A
Other languages
English (en)
French (fr)
Other versions
EP0690754A1 (de
Inventor
Paulus Emanuel Van Dijk
Cornelis Martinus Van Dijk
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.)
Tapkoel Bv
Original Assignee
TAPKOEL VOF
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 TAPKOEL VOF filed Critical TAPKOEL VOF
Publication of EP0690754A1 publication Critical patent/EP0690754A1/de
Application granted granted Critical
Publication of EP0690754B1 publication Critical patent/EP0690754B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D41/00—Application of procedures in order to alter the diameter of tube ends
    • B21D41/02—Enlarging
    • B21D41/021—Enlarging by means of tube-flaring hand tools

Definitions

  • pipe couplings are used wherein a nut element is fixedly screwed over a flared pipe element on an end piece which is for example fixed to a wall or tabletop.
  • the pipes are usually manufactured from plastic material as it is easy to make a flared or truncated cone-shaped extremity on ends of these pipes.
  • Such plastic pipes have a short life span particularly in respect of gas-tightness.
  • preference is given to pipes of stainless steel for beer and/or soft drinks.
  • these pipes have to be provided with flared pipe ends, extensive equipment has to be disposed at the place of installation due to the considerable forces which have to be exerted on the stainless steel pipe ends.
  • Hand-tools for widening pipe ends are known e.g. from NL-A-7.6 12.841 and 7.7 12.995, wherein however these do not relate to the arranging of a truncated cone-shaped pipe end.
  • Known apparatus e.g. as described in GB-A-2.098.529, for flaring stainless steel pipes, are of heavy weight, and need a vase, such as a bench, which has to be transported to a installation location.
  • the present invention provides a hand tool as defined in claim 1.
  • the hand tool according to the invention can be embodied with dimensions which are hardly larger than a so-called pipe wrench, which is suited as hand-tool and which considerably facilitate installation operations, particularly in places which are difficult of access, such as under and/or behind a bar table in a catering establishment.
  • a preferred embodiment of a tool 1 according to the present invention comprises a first side plate 2 onto which a first holding jaw 3 is fixedly attached, while a second holding jaw 4 is provided with protruding portions 5 which are movable up and downward in slots 6.
  • the slot 6 which is provided in a second side plate 7 can be seen in fig. 1.
  • the second side plate 7 is attachable to the fixed holding jaw 3 using screw bolts 8, 9.
  • a first operating arm 11 is pivotally attached using pivot shaft 12, rings 13 and nuts 14.
  • a cam part 16 is arranged between operating arm 11 and pivot shaft 12.
  • a second operating arm 17 is further attached pivotally between side plates 2 and 7 using pivot shaft 18, rings 19 and nuts 20.
  • the cam part 21 coupled to operating arm 17 is provided with a roller element 22.
  • a spring member 26 is arranged which engages onto the protruding portion 5, in order to urge the holding jaw 4, in the position shown in fig. 1, into the open wide position of fig. 1.
  • a pipe end (not shown) is inserted between holding jaws 3, 4 onto mandrel 30, wherein the mandrel 30 provided with a tapering end 31 is pressed to its retracted position.
  • holding jaw 4 (fig. 2B) is subsequently constrained downward, for which purpose the cam part 16 is provided with a rounded side.
  • Holding jaws 3, 4 are preferably provided with screw thread in order to clamp onto a pipe end such that it will not slide during the following treatment with the tool 1 according to the present invention.
  • the operating arm 17 is then brought into the position shown in fig. 2C and pressed into the pipe end (not shown), wherein the roller element 22 rolls along the rear end of the mandrel 30.
  • the mandrel 30, in particular the tapering tip 31 thereof and the holding or clamping parts 3, 4 are made of hardened steel.
  • the preferred embodiment shown and described is only slightly larger than a pipe wrench and has a weight of approximately one kilogram or slightly more.
  • a pipe coupling 40 (fig. 3, 4) comprises an end piece 41, which is for example attached to a wall or table-top using screw thread 42, in addition to a second screw thread 43 onto which a nut element 44 can be screwed.
  • the nut element 44 is pushed over the pipe end before a flared end 46 is arranged thereon.
  • a sealing ring 47 is received between pipe end 45 and end piece 41.
  • the flare 46 is dimensioned such that a practically seamless transition is created between pipe end 45 and end piece 41, which is particularly important for avoiding contamination in such a pipe coupling as well as for preventing frothing of carbonated drinks.
  • the present invention offers possibilities for applying stainless steel pipes anywhere where pipes of copper or plastic have up until now been applied.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Table Equipment (AREA)

Claims (4)

  1. Ein Handgerät (1) zum Versehen eines Rohres mit einem etwas abgestumpft konikförmigen, gekelchten Rohrende, wobei das Gerät (1) umfaßt:
    Lagermittel;
    Haltemittel, die eine erste (3) und eine zweite (4) Halteklaue umfassen, wobei die erste und die zweite Halteklaue (3, 4) im Inneren mit einem Schraubengewinde versehen sind, um ein Rohrende fest zu halten und zu klemmen, wobei die zweite Klaue in Richtung auf die erste Klaue zu und von dieser weg, verschiebbar geführt ist, um das Rohrende zwischen den Klauen zu klemmen;
    einen Dorn (30), wobei der Dorn (30) verschiebbar aufgenommen ist in einem Kanal in den Lagermitteln zwecks Bewegung in einer axialen Richtung des Rohres, das, bei Gebrauch des Geräts, zwischen den Klauen (3, 4) (fest-)geklemmt ist, wobei der Stahldorn (30) eine derartige Härte hat, daß ein Rohrende damit kelchbar ist, wobei der Stahldorn mit einem sich verjüngenden Ende versehen ist;
    einen ersten Betätigungsarm (11), der die zweite Klaue (4) dazu veranlaßt, in Richtung der ersten Klaue (3) während des Klemmens des Rohrendes zwischen den Klauen, zu verschieben;
    einen zweiten Betätigungsarm (17), der den Dorn (30) dazu veranlaßt, sich relativ zu den Haltemitteln und den Lagermitteln zu bewegen, dadurch gekennzeichnet, daß die erste Klaue (3) integral mit dem Abschnitt der Lagermittel ist, in welchem der Kanal für den Dorn vorgesehen ist und daß die Lagermittel des weiteren eine erste Seitenplatte (2) und eine zweite Seitenplatte (7) umfassen, wobei die erste Klaue (3) fest zwischen den Seitenplatten (2, 7) angebracht ist und die zweite Klaue (4) zwischen den Seitenplatten (2, 7) angebracht ist, um verschiebbar in Richtung auf die erste Klaue (3) zu und von dieser weg geführt zu werden, zwecks Klemmens des Rohrendes zwischen den Klauen.
  2. Handgerät nach Anspruch 1, wobei Drehzapfen (12, 18) sowohl des ersten wie auch des zweiten Betätigungsarms (11, 17) zwischen den beiden Seitenplatten angebracht sind, wobei die Seitenplatten (2, 7) mit einem Schlitz (6) versehen sind, entlang dem sich ein vorstehender Abschnitt (23) der Haltemittel hin- und herbewegen kann.
  3. Handgerät nach Anspruch 1 oder 2, wobei das Gerät mit einem Rollenelement (22) an dem zweiten Betätigungsarm (17) versehen ist, damit dieses entlang des Dorns (30) rollen kann, wenn der zweite Betätigungsarm (17) aktiviert ist.
  4. Verwendung eines Handgeräts nach einem der Ansprüche 1 bis 3, um ein Rohr aus rostfreiem Stahl mit einem etwa abgestumpft, konikförmig gekelchten Rohrende zu versehen, insbesondere an Orten, die schwer zugänglich sind, wie beispielsweise unter und/oder hinter einem Bartisch bei einer Cateringeinrichtung, die Schritte umfassend:
    Einführen eines Rohrendes aus rostfreiem Stahl in Halteklauen des Handgeräts;
    Klemmen des Rohrendes zwischen diesen Halteklauen;
    Betätigen der Betätigungseinrichtungen derart, daß der Dorn sich relativ zu den Haltemitteln bewegt, wobei der Dorn in das Ende des Stahlrohres gezwungen wird und dabei einen Kelch einführt bzw. ausbildet.
EP92924712A 1991-12-09 1992-12-08 Handgerät zum ausweiten eines rohrendes Expired - Lifetime EP0690754B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL9102050 1991-12-09
NL9102050A NL9102050A (nl) 1991-12-09 1991-12-09 Handwerktuig voor het verwijden van een pijpeinde en pijpkoppeling gebruikmakend van een dergelijk verwijd pijpeinde.
PCT/EP1992/002863 WO1993011889A1 (en) 1991-12-09 1992-12-08 Hand-tool for widening a pipe end and pipe coupling making use of such a widened pipe end

Publications (2)

Publication Number Publication Date
EP0690754A1 EP0690754A1 (de) 1996-01-10
EP0690754B1 true EP0690754B1 (de) 2000-07-19

Family

ID=19860010

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92924712A Expired - Lifetime EP0690754B1 (de) 1991-12-09 1992-12-08 Handgerät zum ausweiten eines rohrendes

Country Status (6)

Country Link
EP (1) EP0690754B1 (de)
JP (1) JPH07506766A (de)
AU (1) AU3086692A (de)
DE (1) DE69231283T2 (de)
NL (1) NL9102050A (de)
WO (1) WO1993011889A1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1009923C8 (nl) * 1998-08-21 2002-12-05 Vsh Fabrieken Bv Inrichting voor het verwijderen van een eindgedeelte van een buisdeel.
GB2375726A (en) * 2001-05-26 2002-11-27 Michael Bailey Swaging block
DE102007030870B3 (de) * 2007-07-03 2008-10-09 Bernhard Wagner Vorrichtung zum Verformen des Endes eines Rohres
CN102615207A (zh) * 2012-04-05 2012-08-01 天津理工大学 用于弯曲金属管的冲压扩口装置
CH707604A1 (de) * 2013-02-13 2014-08-15 Florian Goop Bördelaufsatz zum Aufweiten von zylindrischen Rohrenden.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1372197A (en) * 1919-11-10 1921-03-22 Imp Brass Mfg Co Tube-flaring apparatus
US2302794A (en) * 1941-03-10 1942-11-24 Neukirch Frank Lever type flaring tool
US3052280A (en) * 1957-07-16 1962-09-04 Collin Flaring tool
US3059686A (en) * 1959-11-27 1962-10-23 Imp Eastman Corp Tube-working tool
FR2053839A5 (de) * 1969-07-21 1971-04-16 Raccords Robinets Cie
GB2098529A (en) * 1981-05-15 1982-11-24 Sykes Pickavant Ltd Improvements in or relating to flaring or other press tools

Also Published As

Publication number Publication date
DE69231283D1 (de) 2000-08-24
AU3086692A (en) 1993-07-19
WO1993011889A1 (en) 1993-06-24
DE69231283T2 (de) 2001-02-22
NL9102050A (nl) 1993-07-01
JPH07506766A (ja) 1995-07-27
EP0690754A1 (de) 1996-01-10

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