WO1990012665A1 - Elargisseur de tuyaux - Google Patents

Elargisseur de tuyaux Download PDF

Info

Publication number
WO1990012665A1
WO1990012665A1 PCT/AU1990/000145 AU9000145W WO9012665A1 WO 1990012665 A1 WO1990012665 A1 WO 1990012665A1 AU 9000145 W AU9000145 W AU 9000145W WO 9012665 A1 WO9012665 A1 WO 9012665A1
Authority
WO
WIPO (PCT)
Prior art keywords
expander
pin
pin means
heads
ratchet mechanism
Prior art date
Application number
PCT/AU1990/000145
Other languages
English (en)
Inventor
Terrence Edmund Stanley
Original Assignee
W.E.B. Tooling Pty. Ltd.
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 W.E.B. Tooling Pty. Ltd. filed Critical W.E.B. Tooling Pty. Ltd.
Publication of WO1990012665A1 publication Critical patent/WO1990012665A1/fr

Links

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
    • B21D41/026—Enlarging by means of mandrels

Definitions

  • PIPE EXPANDER This invention relates to a pipe expander.
  • the invention may be said to reside in a pipe expander comprising: pin means for receiving at least two pipe expander heads, said pin means having expander means engaging portions for engaging respective expander heads and expanding the expander heads to, in turn, expand a ;pe; and means for moving said pin means so that either one of said expander head engaging portions can be brought into engagement with a respective expander head to cause that expander head to be expanded.
  • the means for moving the pin means comprises a ratchet mechanism which can be actuated to move the pin means in two directions.
  • the expander head engaging portions comprise tapered portions of the pin means and wherein the means for moving the pin means comprises means for causing movement of the pin back and forth in a direction parallel to the longitudinal axis of the pin means so as to bring the respective engagement portions into engagement with respective expander heads to expand the expander heads.
  • the ratchet mechanism is provided with a screw thread which engages a screw thread on the pin means so that rotary movement of the ratchet mechanism causes the back and forth movement of the pin means by virtue of the engagement of the screw thread on the ratchet mechanism with the screw thread on the pin means and wherein the ratchet mechanism can be actuated to selectively reverse the direction of movement of the pin means to bring the desired one of the expander head engagement portions into engagement with the desired one of the pipe expander heads.
  • the pin means has a pair of base plates which retain the pipe expander heads, said base plates having a handle coupled thereto so that to actuate the device the handle can be gripped and a handle portion of the moving means also gripped to enable the moving means to be actuated to move the pin means.
  • a pin 12 which has tapered end portions 14 and 16 which form expander head engaging portions for expanding pipe expander heads 20 and 22.
  • the pipe expander heads 20 and 22 are preferably of the type described in our U.S. Patent No. 4,733,551 and its Australian counterpart together with corresponding applications in Canada, Europe, Japan and New Zealand. The subject matter of those patents and applications is incorporated in this specification by this reference.
  • the expander heads 20 and 22 are mounted on plates 24 and 26 which are supported on pin 12 for movement relative to the pin 12. The manner of attachment of the expander heads 20 and 22 to the plates 24 and 26 may be the same as that in the abovementioned patents and applications.
  • expander heads 20 and 22 are provided with a plurality of segments which, when joined together, define a central tapered opening 28.
  • the plates 24 and 26 are joined by a relatively narrow plate 30 which, in turn, is provided with a handle 32.
  • the area between the plates 24 and 26 is left open apart from the relative narrow plate 30.
  • a ratchet mechanism 40 Arranged on the pin 12 between the plates 24 and 26 is a ratchet mechanism 40 which has a ratchet portion 42 and a handle 44. Ratchet portion 42 is provided with a screw thread (not shown) which engages a screw thread (not shown) on the pin 12.
  • the ratchet mechanism 40 has a button 46 which enables the direction of movement of the ratchet mechanism to be reversed.
  • the expander heads 20 and 22 are provided with their expander portions 20a, 20b and 20c and 22a, 22b and 22c of different diameters so that the pipe expander is provided with six expander portions of different diameters which can be used to expand pipes of six different diameters.
  • the pipe expander is provided with six expander portions of different diameters which can be used to expand pipes of six different diameters.
  • one of the expander heads can be expanded to expand a pipe by back and forth rotary movement of the handle 44 about pin 12 relative to the handle 32 to thereby rotate the ratchet mechanism and cause the pin 12 to move to the left or to the right in the direction of double headed arrow D to expand one of the expander heads 20 or 22.
  • the preferred embodiment of the present invention therefore provides a compact tool which is easily portable and which can be used to expand pipes of six different diameters in view of the six different size expander portions on the heads 20 and 22. Since modification within the spirit and scope of the invention may readily be effected by persons skilled within the art, it is to be understood that this invention is not limited to the particular embodiment described by way of example hereinabove.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manipulator (AREA)

Abstract

L'élargisseur de tuyaux décrit se compose de deux têtes élargisseuses de tuyau (20 et 22), qui peuvent être sélectivement élargies pour permettre l'élargissement à son tour d'une pièce à usiner, telle qu'un tuyau. L'élargisseur de tuyaux comprend une broche (12) pourvue d'un mécanisme à cliquet (42). Le mécanisme à cliquet (42) est actionné au moyen d'un manche (44) et le second manche (32) est prévu pour être saisi par un utilisateur, de façon à actionner le manche (44) pour entraîner un mouvement axial vers l'avant et vers l'arrière de la broche (12) par rapport aux têtes élargisseuses (20 et 22). La broche (12) est pourvue de deux extrémités (14 et 16) fuselées vers l'extérieur, de sorte que, pendant le mouvement axial de la broche, la tête fuselée s'engage dans les ouvertures (28) ménagées dans les têtes élargisseuses (20 et 22), entraînant l'élargissement vers l'extérieur de la tête désirée (20 ou 22).
PCT/AU1990/000145 1989-04-21 1990-04-12 Elargisseur de tuyaux WO1990012665A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPJ3830 1989-04-21
AUPJ383089 1989-04-21

Publications (1)

Publication Number Publication Date
WO1990012665A1 true WO1990012665A1 (fr) 1990-11-01

Family

ID=3773873

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1990/000145 WO1990012665A1 (fr) 1989-04-21 1990-04-12 Elargisseur de tuyaux

Country Status (1)

Country Link
WO (1) WO1990012665A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499388A (zh) * 2015-12-25 2016-04-20 中国航空工业集团公司北京航空制造工程研究所 分瓣胀型模具及制造内部带筋的环形件的方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986383A (en) * 1974-01-02 1976-10-19 Petteys Howard A Expander tool
DE2645830A1 (de) * 1975-10-10 1977-04-21 Joseph Robles Werkzeug zum herstellen von anschlussaufweitungen an rohrenden
FR2332082A1 (fr) * 1975-11-24 1977-06-17 Rothenberger Gmbh Co Outil a main pour elargir les extremites de tubes de canalisations
US4055064A (en) * 1976-01-08 1977-10-25 Schow Virgle L Muffler and tail pipe expander and cleaner
AU3056877A (en) * 1976-11-29 1979-05-17 Rothenberger G.m.b.H. Co. Tool for enlarging the ends of pipes
FR2406484A2 (fr) * 1977-10-21 1979-05-18 Robles Joseph Outil pour la realisation d'emboitures sur tubes
EP0219268A2 (fr) * 1985-10-10 1987-04-22 W.E.B. Tooling Pty. Ltd. Tête pour un dispositif d'élargement de tubes

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3986383A (en) * 1974-01-02 1976-10-19 Petteys Howard A Expander tool
DE2645830A1 (de) * 1975-10-10 1977-04-21 Joseph Robles Werkzeug zum herstellen von anschlussaufweitungen an rohrenden
FR2332082A1 (fr) * 1975-11-24 1977-06-17 Rothenberger Gmbh Co Outil a main pour elargir les extremites de tubes de canalisations
US4055064A (en) * 1976-01-08 1977-10-25 Schow Virgle L Muffler and tail pipe expander and cleaner
AU3056877A (en) * 1976-11-29 1979-05-17 Rothenberger G.m.b.H. Co. Tool for enlarging the ends of pipes
FR2406484A2 (fr) * 1977-10-21 1979-05-18 Robles Joseph Outil pour la realisation d'emboitures sur tubes
EP0219268A2 (fr) * 1985-10-10 1987-04-22 W.E.B. Tooling Pty. Ltd. Tête pour un dispositif d'élargement de tubes

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105499388A (zh) * 2015-12-25 2016-04-20 中国航空工业集团公司北京航空制造工程研究所 分瓣胀型模具及制造内部带筋的环形件的方法

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