EP1907149B1 - Presse universelle servant a deformer des manchons-raccords et a d'autres usages - Google Patents

Presse universelle servant a deformer des manchons-raccords et a d'autres usages Download PDF

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Publication number
EP1907149B1
EP1907149B1 EP06762569A EP06762569A EP1907149B1 EP 1907149 B1 EP1907149 B1 EP 1907149B1 EP 06762569 A EP06762569 A EP 06762569A EP 06762569 A EP06762569 A EP 06762569A EP 1907149 B1 EP1907149 B1 EP 1907149B1
Authority
EP
European Patent Office
Prior art keywords
press
crosspiece
crosspieces
crimping
movement
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.)
Not-in-force
Application number
EP06762569A
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German (de)
English (en)
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EP1907149A1 (fr
Inventor
Raffaele Zinelli
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.)
PUNZ TEC Srl
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PUNZ TEC Srl
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Filing date
Publication date
Application filed by PUNZ TEC Srl filed Critical PUNZ TEC Srl
Publication of EP1907149A1 publication Critical patent/EP1907149A1/fr
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Anticipated expiration legal-status Critical
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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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B21D39/048—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods using presses for radially crimping tubular elements
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn

Definitions

  • the present invention relates to a universal press according to the preamble of claim 1.
  • Manually or hydraulically operated presses are generally used to deform the connection sleeves positioned on the ends of flexible pipes, in order to form a connection between the pipes.
  • Currently available presses are know to generally comprise a fixed first crosspiece which supports a movable second crosspiece by means of two projecting shafts.
  • the fixed crosspiece comprises a polygonal seat facing an identical polygonal seat provided in the movable crosspiece, each of said seats receiving an active part formed from a group of crimping inserts disposed as a fan, and from an elastic clamp which connects the inserts together.
  • the clamp also comprises the spacer elements of deformable elastic material which are interposed between the crimping inserts.
  • Said active parts define a generally elliptical closed annular seat for encircling the connection sleeve.
  • the movable crosspiece is removable from the slide shafts to enable the connection sleeve to be initially positioned within said annular seat; then after being remounted, it is made to approach the fixed crosspiece until the respective active parts come into mutual contact and tighten about the connection sleeve by the deformation of the elastic clamps and of the relative spacer elements.
  • the crimping inserts are progressively pressed against said connection sleeve, to deform it and hence fix it to the pipes.
  • US 5,092,152 discloses a crimping machine having two crosspieces and comprising an insert carrier frame interposed between the crosspieces.
  • the crimping machine comprises slide seats disposed about a common central axis which receive and guide slidable crimping inserts towards and from the central axis, the crimping inserts being disposed in such a way as to form an annular configuration.
  • EP 1 106 276 discloses a press tool with a plurality of press surfaces displaced radially relative to the press axis in synchronism, via a pair of outer control bodies, each of which has two control surfaces at 90 degrees to one another, with the angular bisector between them lying in a symmetry plane passing through the press axis.
  • Each control surface is provided with two inner control bodies, for acting on the press surfaces, positioned symmetrical to further symmetry planes at 45 degrees to the first symmetry plane.
  • WO 97/32679 discloses a crimper assembly assembly for crimping a workpiece such as a hose fitting.
  • the crimper assembly includes a pair of tie rods of differing diameters which mount a lower stationary die carriage and an upper movable die carriage.
  • a central rod is mounted on the movable carriage and extends through a press bar, whereby a driving force is applied to the central rod.
  • a couple of die retainer plates are attached to the carriages and include guide slots.
  • a spring biased disconnect plate is slidably attached to the tie rods adjacent the press bar. When the disconnect plate is moved to a disconnect position, the movable carriage can be moved upwardly for access to the flexible die set retainers for changing individual dies.
  • DE 3 808 344 discloses a press which has at least two piston/cylinder units which are arranged in the lower part of the press.
  • An abutment screw in the chamber of cylinder is provided to vary the stroke of the piston.
  • An object of the present invention is to overcome the aforestated drawback within the framework of a simple, rational and low-cost solution.
  • the present invention provides a universal press comprising:
  • the press comprises eight crimping inserts 2 which are radially disposed, angularly equidistant, about a common central axis (A), and are each formed from a metal block presenting, facing said central axis A, an active part 20 shaped as a circular sector tapered towards its end.
  • the active parts 20 of all the crimping inserts 2 define a perfectly circular annular seat 3 for axially housing a connection sleeve positioned at the ends of two pipes to be connected together.
  • each active part 20 comprises three separate teeth aligned along a direction parallel to the central axis A (see Figures 2 and 3 ), they being intended to be pressed radially against said connection sleeve, such as to deform it and fix it securely to the pipes.
  • the crimping inserts 2 are carried by an insert carrier frame formed from two separate identical half-frames, an upper 4 and lower .5 respectively, symmetrically opposing about an ideal plane of symmetry B passing through the central axis A.
  • Said half-frames 4 and 5 carry respectively one half of the crimping inserts 2, and close onto two cylindrical spacers 6 individually locked between two receiving cradles 6' and 6" which face each other and are provided in one and the other half-frame 4 and 5 respectively (see Figures 1 , 4 and 5 ).
  • Each half-frame 4 and 5 consists of two specularly disposed identical profiled plates, namely a rear 40 and a front 41, which are perpendicular to the central axis A and are connected together by two hexagonal side spacers 42 and a rectangular central spacer 43 (also see Figures 2 and 3 ).
  • the facing sides of said rear plate 40 and front plate 41 are each grooved by four full-length prismatic channels 44 (see Figure 1 ) which, arranged as a fan, extend longitudinally, each along its own radial direction from the central axis A.
  • a crimping insert 2 which is orientated with its active part 20 facing the central axis A and is free to slide in a radial direction guided by the channels 44.
  • each guide channel 44 is substantially less than the width of the crimping inserts 2, and equal to about 8% of this width, to achieve a limited friction surface which facilitates sliding and reduces wear.
  • the two rear plates 40 and the two front plates 41 are formed from a monolithic flange having a profile symmetrical about the said plane of symmetry B, and which is firstly machined to form the guide channels 44 and then divided, along said plane B, into two identical half-flanges to form said rear plates 40 or front plates 41 (see Figures 4 and 5 as reference).
  • two lateral holes are initially provided in the flange with their centre slightly below the plane of symmetry B and their diameter equal to the diameter of the spacer cylinders 6.
  • the upper half-frame 4 and lower half-frame 5 are supported respectively by an upper crosspiece 7 and lower crosspiece 8, which are mutually movable along a direction C, perpendicular to the ideal plane of symmetry B.
  • Said crosspieces 7 and 8 are each provided with a central rib, 70 and 80 respectively, of thickness substantially equal to the distance which separates the rear plates 40 from the front plates 41, and partially interposed between these latter.
  • the central rib 70 comprises a recess of lunette shape symmetrically faced by another lunette provided in the opposing central rib 80 (see Figure 1 ).
  • Each lunette presents a substantially V-shaped profile, with two mutually perpendicular oblique walls, both inclined to the direction C in which the crosspieces 7 and 8 mutually move.
  • Said oblique walls are both provided with a reinforcement plate 75, preferably of very hard metal, which provides a thrust surface 79 on which two respective crimping inserts 2 rest; said crimping inserts 2 have their rear cut to flute mouthpiece shape, to rest on said thrust surface 79 along an extended contact surface.
  • a magnetic pad 76 is interposed between each reinforcement plate 75 and a respective crimping insert 2, to always maintain them in mutual contact, it being partially housed in a hole provided in the rear of the crimping insert 2, and projects therefrom to engage the interior of a rectilinear groove 77 provided in the reinforcement plate 75.
  • the housing hole has a depth of about one third of the thickness of the magnetic pad 76, while the groove 77 has a depth of about three quarters of said thickness, in order to leave a suitable clearance.
  • each magnetic pad 76 is rigidly fixed in a hole of the relative reinforcement plate 75 and projects therefrom to partially engage in a groove in the rear of the insert 2.
  • each half-frame 4 and 5 is connected to the relative crosspiece 7 and 8 by two cylindrical pins 71 which project from both sides of the central rib 70 and 80 to engage in two corresponding slots 72 provided in the rear plate 40 and front plate 41, said slots 72 extending along the movement direction C of the crosspieces 7 and 8, to enable their relative movement.
  • each half-frame 4 and 5 and the relative crosspiece 7 and 8 two springs 74 are interposed (see Figure 2 ), each of which is carried by a respective guide rod 45 fixed to the central spacer 43 of the half-frame 4 and 5, and is partially housed axially within a corresponding dead-ended hole 73 provided in the central ribs 70 and 80.
  • the springs 74 perform the double function of constantly pressing the half-frames 4 and 5 against the spacer cylinders 6, to ensure correct positioning of the crimping inserts 2, and to oppose the mutual approach movement of the crosspieces 7 and 8.
  • the lower crosspiece 8 slidably receives two shafts 81 projecting in the said movement direction C, these passing through two respective receiving holes 78 in the upper crosspiece 7, where they are removably locked by locking means described in detail hereinafter.
  • Each projecting shaft 81 is provided with a wide disc 82 slidably inserted into a respective cylindrical chamber 83 of the lower crosspiece 8, closed lowerly by a metal plug 87 retained by a retaining ring 88.
  • pressurized oil is fed into each cylindrical chamber 83 from a conduit 84 connected to an external source (not shown), via a manifold 85 provided in a sleeve 86 fixed to the lower crosspiece 8.
  • Both the central ribs 70 and 80 move simultaneously between the rear plate 40 and the front plate 41 of the respective half-frame 4 and 5, to cause the thrust surfaces 79 to slide in contact with the rear of the corresponding crimping inserts 2, and hence cause these latter to slide simultaneously in a radial direction towards the central axis A, to deform the connection sleeve (see Figure 5 ).
  • the magnetic pads 76 slide rigid with the respective crimping insert 2 within the groove 77 provided in the thrust surface 79.
  • connection sleeve to be crimped within the annular seat 3 or, vice versa, to extract it after deformation, it merely has to be inserted axially into or withdrawn from the annular seat 3.
  • the upper crosspiece 7 and lower crosspiece 8 have merely to be separated from each other, as shown in Figure 7 .
  • an adjustment screw 89 is provided, associated with the metal closure plug 87 of one of said cylindrical chambers 83, and movable in the direction in which the wide disc 82 slides: by screwing down the screw 89 the stroke of the projecting shafts 81 is reduced and the crimping diameter increased, whereas by unscrewing it, said stroke is increased and the crimping diameter reduced.
  • the said means for locking the upper crosspiece 7 to the projecting shafts 81 comprise a generally cylindrical latch 9 slidably inserted into a transverse hole 90 which is provided at the top of the upper crosspiece 7, and into which the receiving holes 78 open.
  • the top of said latch 9 presents two separate recesses 91, provided lowerly with a respective aperture 92 passing through its thickness.
  • the apertures 92 are shaped to both present a substantially circular wide portion 92' and a narrow portion 92" which extends as a slot in the direction in which the latch 9 slides, and in the same sense (see Figures 6a and 6b ).
  • the latch 9 can slide within the transverse hole 90 between two separate positions, one being a release position in which the wide portions 92' of the apertures 92 are aligned with the holes 78 receiving the projecting shafts 81, and the other an engagement position in which they are offset.
  • the projecting shafts 81 In proximity to their free end, the projecting shafts 81 present two parallel cuts defining an intermediate portion 93 of reduced cross-section to slidably engage with one of said narrow portions 92", they bounding a cylindrical end head 94.
  • the projecting shafts 81 can be inserted into the holes 78 of the upper crosspiece 7 and through the wide portions 92' of the apertures 92, until their cylindrical heads 94 are positioned within the recess 91; then on moving the latch 9 into the engagement position (see Figure 6a ), the narrow portions 92" slide as an exact fit along the narrow cross-section portions 93 of the projecting shafts 81, to secure the upper crosspiece 7 to the lower crosspiece 8.
  • a manual screw 10 is screwed into it, this being slidably received in a slot 95 provided in the top of the upper crosspiece 7; furthermore, to further ensure correct location of the of the latch 9 in the engagement position, it is provided with an elastic stop 11 which, when this position has been attained, snaps into said slot 95.
  • the crimping inserts 2 can be advantageously replaced by simply pulling them towards the end of the respective guide channel 44 until the magnetic attraction of the magnetic pad 76 is overcome (see Figure 7 ), this remaining attached to the reinforcement plate 75 because of its greater metallic mass compared with the insert 2.
  • the press can be adapted for other uses, without changing the configuration of the press 1: the press 1 can be provided with accessories which enable it to operate for example as a punch, as shown in Figure 8 .
  • Said forks 12 are insertedly coupled to a punch 120 and die 121 respectively, which are made to mutually approach by the movement of the crosspieces 7 and 8 in the direction C.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)
  • Joints Allowing Movement (AREA)
  • Press Drives And Press Lines (AREA)
  • Springs (AREA)
  • Clamps And Clips (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)

Claims (17)

  1. Une presse universelle comprenant deux pièces transversales (7, 8) pouvant être déplacées l'une par rapport à l'autre dans une direction rectiligne (C) avec un mouvement d'approche et d'éloignement mutuel, pour agir sur une série de matrices à sertir (2) disposées pour définir un siège de logement angulaire (3) pour un douille de connexion, afin de les pousser simultanément vers cette dernière et de les rétracter simultanément dans la direction opposée, suivant respectivement un mouvement d'approche mutuelle et un mouvement de d'éloignement mutuel desdites pièces transversales (7, 8), comprenant également un châssis de support de matrice (4, 5) qui est intercalé entre lesdites pièces transversales (7, 8) et comprenant un ensemble de sièges coulissants (44) disposés de façon radiale autour d'un axe central commun (A) et placé chacun de manière à recevoir une matrice à sertir correspondante (2) pour la guider par coulissement dans une direction radiale avec un mouvement de va-et-vient par rapport audit axe central (A), chaque pièce transversale (7, 8) comprenant des surfaces de butée (79), chacune d'elle étant disposée pour rester en contact permanent avec l'arrière d'au moins une matrice à sertir correspondante (2) grâce aux dispositif de rétention (76), afin de conduire ladite matrice à sertir (2) dans son mouvement au sein du siège coulissant correspondant (44) caractérisé par le fait que le dispositif de rétention comprend, pour chaque matrice à sertir (2), un aimant (76) intercalé entre l'arrière de la matrice à sertir (2) et la surface de butée (79).
  2. Une presse selon la revendication 1, caractérisée par le fait que les surfaces de butée (79) sont inclinées dans la direction d'un mouvement relatif (C) des pièces transversales (7, 8).
  3. Une presse selon la revendication 1, caractérisée par le fait que l'arrière des matrices à sertir est façonné de sorte qu'il repose sur la surface de butée correspondante (79) avec une surface de contact étendue.
  4. Une presse selon la revendication 1, caractérisée par le fait que lesdites surfaces de poussée (79) sont associées aux parois de deux lunettes identiques opposées symétriquement qui sont prévues respectivement dans l'une et l'autre des pièces transversales (7, 8).
  5. Une presse selon la revendication 4, caractérisée par le fait que lesdites lunettes présentent un profil substantiellement en V, dont les parois obliques portent chacune une surface de butée (79).
  6. Une presse selon la revendication 5, caractérisée par le fait que lesdites parois obliques sont mutuellement perpendiculaires.
  7. Une presse selon la revendication 1, caractérisée par le fait que chaque surface de butée (79) est fournie par une plaque de renfort (75) fixe de façon rigide à la pièce transversale relative (7, 8).
  8. Une presse selon la revendication 1, caractérisée par le fait que le châssis de support est formé de deux demi-châssis (4, 5) séparés identiques opposés symétriquement dont chacun est soutenu par une pièce transversale correspondante (7, 8).
  9. Une presse selon la revendication 8, caractérisée par le fait que chaque demi-châssis (4, 5) est soutenu par la pièce transversale relative (7, 8) à l'aide d'un dispositif élastique (74) qui l'appuie en permanence contre l'autre demi-châssis, en permettant à la pièce transversale (7, 8) de se déplacer par rapport à celui-ci.
  10. Une presse selon la revendication 8, caractérisée par le fait que chaque demi-châssis (4, 5) comprend deux plaques frontales espacées identiques (40, 41), chaque siège coulissant individuel étant défini par deux canaux de coulissement opposés (44) respectivement prévus dans les faces frontales desdites plaques frontales (40, 41) ; les pièces transversales (7, 8) comprenant chacune une nervure centrale correspondante (70, 80) pouvant coulisser entre les plaques frontales (40, 41) du demi-châssis correspondant (4, 5) et portant lesdites surfaces de butée (79).
  11. Une presse selon la revendication 8, caractérisée par le fait qu'entre chaque demi-châssis (4, 5) sont intercalés deux cylindres d'écartement (6) disposés parallèlement à l'axe central (A) et retenus individuellement entre deux arceaux (6', 6") prévus respectivement dans l'un et dans l'autre des demi-châssis (4,5).
  12. Une presse selon la revendication 1, caractérisée par le fait qu'une première pièce transversale (8) comprend deux arbres saillant (81) qui pénètrent dans deux trous de réception correspondants (78) prévus dans la deuxième pièce transversale (7), et qui peuvent être verrouillés de façon amovible à leur intérieur par un dispositif de verrouillage (9) ; lesdits arbres saillant (81) coulissant simultanément dans ladite direction de mouvement (C) pour faire approcher ou éloigner les pièces transversales (7, 8) l'une de l'autre.
  13. Une presse selon la revendication 12, caractérisée par le fait que ledit dispositif de verrouillage comprend un verrou (9) reçu par coulissement dans un trou transversal (90) prévu dans la deuxième pièce transversale (7) et dans lequel lesdits trous de réception (78) pour les arbres saillant (81) sont ouverts ; ledit verrou (9) étant capable d'être placé dans une position d'engagement, dans laquelle il s'engage par introduction dans les deux arbres saillant (81) pour les verrouiller à ladite deuxième pièce transversale (7), et dans une position de dégagement, dans laquelle il se désengage de ladite introduction, pour permettre aux arbres saillant (81) d'être introduits et retirés des trous de réception (78).
  14. Une presse selon la revendication 13, caractérisée par le fait que ledit verrou (9) comprend deux ouvertures séparées (92) passant à travers son épaisseur, chacune d'elle étant façonnée pour présenter :
    - une portion large (92') qui fait face à un trou de réception correspondant (78) lorsque le verrou (9) se trouve en position de dégagement, pour permettre le passage de l'arbre saillant (81) correspondant ; et
    - une portion étroite (92"), allongée comme une fente dans la direction de coulissement du verrou (9), pour engager parfaitement une portion de section intermédiaire réduite (93) dudit arbre saillant (81), lorsque ce dernier est introduit dans l'ouverture (92) et que le verrou (9) est dans sa position d'engagement.
  15. Une presse selon la revendication 13, caractérisée par le fait que ledit verrou (9) possède une forme générale cylindrique et présente deux creux (91), positionnés au niveau desdites ouvertures passantes (92) sur le côté opposé des trous de réception (78), et qui sont capables de recevoir la portion finale (94) d'un arbre saillant respectif (81) pour permettre de parvenir à l'introduction.
  16. Une presse selon la revendication 13, caractérisée par le fait que chaque arbre saillant (81) comprend un disque large (82) reçu par coulissement dans une chambre cylindrique relative (83) de la première pièce transversale (8), dont la chambre est alimentée par un fluide sous pression qui pousse le disque (82) dans la direction permettant aux pièces transversales (7, 8) de s'approcher l'une de l'autre.
  17. Une presse selon la revendication 16, caractérisée par le fait qu'au moins l'une desdites chambres cylindriques (83) est fermée par un élément (89) qui est mobile dans la direction de coulissement du disque large (82) et permet de modifier la course de ce dernier.
EP06762569A 2005-07-26 2006-07-11 Presse universelle servant a deformer des manchons-raccords et a d'autres usages Not-in-force EP1907149B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000091A ITRE20050091A1 (it) 2005-07-26 2005-07-26 Pressetta universale per la deformazione delle boccole di raccordo di tubi, e per altri usi
PCT/EP2006/006875 WO2007012411A1 (fr) 2005-07-26 2006-07-11 Presse universelle servant a deformer des manchons-raccords et a d'autres usages

Publications (2)

Publication Number Publication Date
EP1907149A1 EP1907149A1 (fr) 2008-04-09
EP1907149B1 true EP1907149B1 (fr) 2009-05-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762569A Not-in-force EP1907149B1 (fr) 2005-07-26 2006-07-11 Presse universelle servant a deformer des manchons-raccords et a d'autres usages

Country Status (6)

Country Link
US (1) US20080209975A1 (fr)
EP (1) EP1907149B1 (fr)
AT (1) ATE431204T1 (fr)
DE (1) DE602006006834D1 (fr)
IT (1) ITRE20050091A1 (fr)
WO (1) WO2007012411A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6505999B2 (ja) * 2014-09-05 2019-04-24 ファナック株式会社 弾性体を介して線条体を固定する線条体固定装置
DE202022102074U1 (de) * 2022-04-19 2022-04-27 Uniflex - Hydraulik GmbH Radialpresse
US12397337B2 (en) * 2022-12-15 2025-08-26 Winton Machine Company Crimping device

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3731518A (en) * 1971-05-26 1973-05-08 G Blocher Crimping die arrangement
US4785656A (en) * 1986-10-01 1988-11-22 Stratoflex, Inc. Crimping machine for hose and fitting assemblies
DE3808344A1 (de) * 1988-03-12 1989-09-28 Horst Baltschun Saeulenpresse fuer grosse aussermittige belastungen und schnittschlagdaempfung
US5092152A (en) * 1990-09-28 1992-03-03 Parker-Hannifin Corporation Crimping machine
DE4135465A1 (de) * 1991-10-28 1993-04-29 Schroeck Peter Dipl Ing Fh Radialpresse mit zwei radial gegeneinander beweglichen pressenjochen
US5257525A (en) * 1992-06-24 1993-11-02 Atco Products, Inc. Portable slim-line hose fitting crimper
JPH11508825A (ja) * 1996-03-08 1999-08-03 エアロクイップ コーポレイション クリンパ組立体
DE19814474C1 (de) * 1998-04-01 1999-07-08 Peter Dipl Ing Schroeck Radialpreßwerkzeug für die Verformung rotationssymmetrischer Werkstücke
US6257042B1 (en) * 1999-11-05 2001-07-10 Lillbacka Oy Open throat crimping machine
DE19958103C1 (de) * 1999-12-02 2001-03-01 Peter Schroeck Preßwerkzeug zum Verpressen von rotationssymmetrischen Hohlkörpern

Also Published As

Publication number Publication date
ATE431204T1 (de) 2009-05-15
ITRE20050091A1 (it) 2007-01-27
WO2007012411A1 (fr) 2007-02-01
US20080209975A1 (en) 2008-09-04
DE602006006834D1 (de) 2009-06-25
EP1907149A1 (fr) 2008-04-09

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