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WO1993008940A1 - Reparation de jantes en metal leger abimees - Google Patents

Reparation de jantes en metal leger abimees Download PDF

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Publication number
WO1993008940A1
WO1993008940A1 PCT/NL1992/000192 NL9200192W WO9308940A1 WO 1993008940 A1 WO1993008940 A1 WO 1993008940A1 NL 9200192 W NL9200192 W NL 9200192W WO 9308940 A1 WO9308940 A1 WO 9308940A1
Authority
WO
WIPO (PCT)
Prior art keywords
rim
pressure
deformation
heating
zone
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.)
Ceased
Application number
PCT/NL1992/000192
Other languages
English (en)
Inventor
Johan Van Eeken
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1993008940A1 publication Critical patent/WO1993008940A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/06—Removing local distortions
    • B21D1/08—Removing local distortions of hollow bodies made from sheet metal

Definitions

  • the invention relates to repairing of damaged light-metal rims, in particular aluminium rims for cars and motor-bikes.
  • Such rims consist of cast aluminium.
  • the object of the invention is to provide a method and a device which makes it possible to restore damaged, that is plastically deformed, rims to their former shape and thus make them suitable for re-use.
  • the invention provides a method for restoring a plastically deformed light-metal rim to the original shape, which method comprises the steps of:
  • the first temperature preferably lies in the range of roughly 100-120°C.
  • the second temperature preferably lies in the range of roughly 230-260°C.
  • the invention also provides a device for performing the above specified method.
  • This device comprises first heating means for heating the rim to a temperature in the range of 80-140°C; second heating means for locally heating the rim to a temperature in the range of 200-300°C; pressure means for applying a local pressure force on a zone of a rim for treating.
  • the manner in which the method according to the invention has to be performed , and therewith the configuration of the pressure means and their position in relation to the rim are strongly dependent on the nature of the deformation for repair.
  • the pressure means can for instance be adapted for pressing outward the more or less cylindrical peripheral wall that has been pressed inward.
  • the device preferably has the feature that the pressure means comprise a pressure cylinder bearing on its one end a pressure distribution plate, whereof the radius of curvature corresponds with the radius of curvature of the relevant portion of the inner surface of the rim, and bearing on its other end a pressure plate whereof the radius of curvature is smaller than the radius of curvature of the original shape of the zone for treating, this such that in the operating situation the pressure means extend in the diagonal direction of the rim and can push off against this rim.
  • the pressure means comprise a pressure cylinder bearing on its one end a pressure distribution plate, whereof the radius of curvature corresponds with the radius of curvature of the relevant portion of the inner surface of the rim, and bearing on its other end a pressure plate whereof the radius of curvature is smaller than the radius of curvature of the original shape of the zone for treating, this such that in the operating situation the pressure means extend in the diagonal direction of the rim and can push off against this rim.
  • this embodiment is preferably characterized by locking means blocking the axial movement of the pressure means.
  • the device may be characterized by a frame with positioning means for fixedly positioning a rim relative to that frame, which frame also bears the pressure means; such that the pressure means can press between the frame and the rim.
  • the pressure means can for instance exert a more or less axially directed pressure force on the rim edge or a force extending in a direction intermediate the radial direction and axial direction.
  • the device according to the invention can in principle accommodate for repair any desired type provided the device has the feature that the positioning means comprise a supporting member r the inner surface of which has at least two arcuate steps with different radii of curvature for supporting rims with correspondingly differing diameters.
  • the supporting member may for instance consist of two supporting elements, each with the form of a part of a ring, the mutual position of which can be varied. In this manner a rim can be placed easily on the supporting member.
  • the device has the feature that the first heating means comprise an oven.
  • an oven suitable for the pre-heating step can comprise a thermostatic control.
  • figures 1A, B, C, D show highly schematically an embodiment of the method according to the invention
  • figure 2 shows a partly broken away perspective view of a ⁇ device according to the invention in the first phase of mechanical treatment in accordance with figure ID
  • figure 3 is a perspective partly broken away view of a second phase
  • figure 4 shows a detail in partly broken away perspective view of a third phase
  • figure 5 shows a detail in perspective view of a fourth phase
  • figure 6 shows a device according to the invention which is suitable for correcting axial deformations of the edge of a rim.
  • Figure 1 shows in very schematic manner a rim 1 which, for instance due to an accident, has a deformed zone 2 that has been pressed inward.
  • the rim 1 is placed in accordance with figure IB in an oven 3 with a heating element 4, whereafter the temperature inside oven 3 is brought to a value Tl.
  • Tl the relevant temperature
  • the rim has assumed the temperature of 120°C. It is then removed from the oven, placed on positioning means to be described " hereinafter on a frame and, as shown schematically in figure lC, heated locally by a burner 5. The flame of this burner is directed onto the deformation 2 until at this location the rim reaches the desired temperature of for instance roughly 240° (T2) . Use is made for this purpose of a suitable temperature meter. After these temperature treatments the heated rim 1 is subjected to a treatment by a pressure cylinder 6.
  • This comprises a plate 7 distributing pressure forces and on the other side a pressure plate 8.
  • the pressure force-distributing plate 7 has the same radius of curvature as the inner side of the rim 1.
  • the plate 8 has a slightly smaller radius of curvature.
  • FIG. 2 shows this treatment according to figure ID in more detail.
  • the pressure cylinder 6 is supported by the rim 1 through cross beams 10, 11.
  • use is made for safety purposes of two locking beams 12, 13 which are connected to a work-table 14 by means of bolts 15. By tightening the nuts 16 the- rim is clamped fixedly onto work-table 14.
  • Pressure cylinder 6 is situated beneath locking beams 12, 13 and there is therefore no danger of the pressure cylinder 6 springing loose when under pressure.
  • Figure 3 shows a device 17 with a frame 18 pivotally supporting a pressure cylinder 19. This can push off on one side against the frame 18 and on the other side against the inside of the rim 1 via a pressure member 20. Otherwise than with the pressure cylinder 6 according to figure 2, the angle at which the pressure force is exerted on the rim 1 can be varied by varying the vertical position of a bearing arm 21.
  • the arm 21 is guided vertically up and downward for this purpose around a column 22 forming part of frame 8 by means of a carriage 23. This can be locked in any desired position by locking means 24.
  • FIG. 4 shows a pressure member 26. Highly localized pressure forces can be exerted herewith on the extreme edges in order to correct the shape thereof.
  • a pressure force that is for instance substantially axial can be exerted on the lower edge of the rim by making use of yet another pressure member 27.
  • the different pressure members are easily exchangeable and can all be coupled to the pressure cylinder 19. Which of the pressure members is used and in which sequence the diverse treatments take place depends greatly on the nature and extent of deformation.
  • Figure 6 shows a device 28 comprising a frame 29 on which a rim 1 can be placed.
  • a centering attachment having in this embodiment a disposition of four positioning pins which fit into the bolt holes in the hub 31 of the rim for positioning a rim on the basis of a pin/hole connection.
  • the number of pins can also amount to three or five.
  • the frame 29 bears a supporting member 32 with three arcuate steps 33, 34, 35 for accommodating rims of different diameters. It will be apparent that the steps 33, 34, 35 have differing radii of curvature, each corresponding with the radius of curvature of a rim for treating.
  • the frame slidably supports a pressure cylinder 36 with a pressure member 37 in the form of a curved profile.
  • a deformed zone 38 is designated schematically. Here this is an axial deformation oriented inward which has to be corrected by the pressure force 9. It will be apparent that in all the cases described use is made of a mild pre-heating and a strong, local post-heating prior to the correcting mechanical deformation treatment being performed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)

Abstract

Procédé permettant de rendre sa forme originale à une jante en métal léger déformée de manière plastique. Il consiste (1) à prendre une jante en métal léger déformée de manière plastique; (2) à porter la jante à une première température comprise entre 80 et 140 °C; à porter la partie déformée à réparer de la jante à une température comprise entre 200 et 300 °C; et (4) à appliquer, au niveau de ladite partie déformée à réparer, une pression dirigée dans un sens contraire à celui de la déformation plastique, de telle manière que la zone de déformation plastique subisse une déformation élastique égale à la déformation plastique à réparer.
PCT/NL1992/000192 1991-10-28 1992-10-27 Reparation de jantes en metal leger abimees Ceased WO1993008940A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9101805A NL190866C (nl) 1991-10-28 1991-10-28 Werkwijze en inrichting voor het in de oorspronkelijke vorm terugbrengen van een plastisch vervormde lichtmetalen velg.
NL91.01805 1991-10-28

Publications (1)

Publication Number Publication Date
WO1993008940A1 true WO1993008940A1 (fr) 1993-05-13

Family

ID=19859860

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NL1992/000192 Ceased WO1993008940A1 (fr) 1991-10-28 1992-10-27 Reparation de jantes en metal leger abimees

Country Status (3)

Country Link
AU (1) AU2957492A (fr)
NL (1) NL190866C (fr)
WO (1) WO1993008940A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017271A1 (fr) * 1993-12-21 1995-06-29 Orange, John, R., S. Support pour reparer les roues
US5499524A (en) * 1993-12-21 1996-03-19 Len; Aaron Wheel repair stand
EP1116529A3 (fr) * 2000-01-14 2003-04-02 Tsubasa System Co.,Ltd. Dispositif et procédé pour reparer des roues
EP1398093A1 (fr) * 2002-09-16 2004-03-17 Gino Scardino Dispositif pour la réparation et maintenance des jantes et discs à frein des roues des véhicules
US20110000087A1 (en) * 2009-07-06 2011-01-06 Herbert Lauer Lasser Wheel/rim fixing device and method of using the same
RU2697538C2 (ru) * 2017-07-04 2019-08-15 Акционерное общество "Московское машиностроительное предприятие имени В.В. Чернышёва" Способ восстановления параметров деталей
RU212253U1 (ru) * 2022-04-19 2022-07-12 Публичное акционерное общество "Тяжпрессмаш" Устройство для правки пружинящих частей пружинного центратора обсадной колонны

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE387335C (de) * 1921-07-08 1923-12-27 Schiess Akt Ges Maschf Verfahren zum Ausbeulen und Richten von unrund gewordenen Wetterlutten, duennwandigen Rohren u. dgl.
US2233371A (en) * 1938-04-09 1941-02-25 Bee Line Mfg Company Wheel machine
US3855831A (en) * 1973-03-16 1974-12-24 Raymond Lee Organization Inc Wheel straightener
EP0183243A1 (fr) * 1984-11-27 1986-06-04 Norsk Hydro A/S Procédé pour ajuster les jantes des roues

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE387335C (de) * 1921-07-08 1923-12-27 Schiess Akt Ges Maschf Verfahren zum Ausbeulen und Richten von unrund gewordenen Wetterlutten, duennwandigen Rohren u. dgl.
US2233371A (en) * 1938-04-09 1941-02-25 Bee Line Mfg Company Wheel machine
US3855831A (en) * 1973-03-16 1974-12-24 Raymond Lee Organization Inc Wheel straightener
EP0183243A1 (fr) * 1984-11-27 1986-06-04 Norsk Hydro A/S Procédé pour ajuster les jantes des roues

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995017271A1 (fr) * 1993-12-21 1995-06-29 Orange, John, R., S. Support pour reparer les roues
US5499524A (en) * 1993-12-21 1996-03-19 Len; Aaron Wheel repair stand
GB2300161A (en) * 1993-12-21 1996-10-30 Orange John Robert Scoley Wheel repair stand
GB2300161B (en) * 1993-12-21 1997-12-17 Orange John Robert Scoley Wheel repair stand
AU693843B2 (en) * 1993-12-21 1998-07-09 Aaron Len Wheel repair stand
EP1116529A3 (fr) * 2000-01-14 2003-04-02 Tsubasa System Co.,Ltd. Dispositif et procédé pour reparer des roues
EP1398093A1 (fr) * 2002-09-16 2004-03-17 Gino Scardino Dispositif pour la réparation et maintenance des jantes et discs à frein des roues des véhicules
US20110000087A1 (en) * 2009-07-06 2011-01-06 Herbert Lauer Lasser Wheel/rim fixing device and method of using the same
US8353106B2 (en) * 2009-07-06 2013-01-15 Rimsmith Tool, LLC Wheel/rim fixing device and method of using the same
RU2697538C2 (ru) * 2017-07-04 2019-08-15 Акционерное общество "Московское машиностроительное предприятие имени В.В. Чернышёва" Способ восстановления параметров деталей
RU212253U1 (ru) * 2022-04-19 2022-07-12 Публичное акционерное общество "Тяжпрессмаш" Устройство для правки пружинящих частей пружинного центратора обсадной колонны

Also Published As

Publication number Publication date
NL190866B (nl) 1994-05-02
AU2957492A (en) 1993-06-07
NL190866C (nl) 1994-10-03
NL9101805A (nl) 1993-05-17

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