EP0655205B1 - Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets - Google Patents

Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets Download PDF

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Publication number
EP0655205B1
EP0655205B1 EP94112951A EP94112951A EP0655205B1 EP 0655205 B1 EP0655205 B1 EP 0655205B1 EP 94112951 A EP94112951 A EP 94112951A EP 94112951 A EP94112951 A EP 94112951A EP 0655205 B1 EP0655205 B1 EP 0655205B1
Authority
EP
European Patent Office
Prior art keywords
piston
pressure
pressure fluid
flanging
plunger
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
EP94112951A
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German (de)
English (en)
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EP0655205A3 (fr
EP0655205A2 (fr
Inventor
Karl-Josef Kochs
Hubertus Thelen
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.)
William Prym GmbH and Co KG
Original Assignee
William Prym GmbH and Co KG
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Filing date
Publication date
Application filed by William Prym GmbH and Co KG filed Critical William Prym GmbH and Co KG
Publication of EP0655205A2 publication Critical patent/EP0655205A2/fr
Publication of EP0655205A3 publication Critical patent/EP0655205A3/fr
Application granted granted Critical
Publication of EP0655205B1 publication Critical patent/EP0655205B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D5/00—Arrangements for operating and controlling machines or devices for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D5/08—Means for actuating the cutting member to effect the cut
    • B26D5/12—Fluid-pressure means
    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41H—APPLIANCES OR METHODS FOR MAKING CLOTHES, e.g. FOR DRESS-MAKING OR FOR TAILORING, NOT OTHERWISE PROVIDED FOR
    • A41H37/00—Machines, appliances or methods for setting fastener-elements on garments
    • A41H37/02—Setting hooks or eyes

Definitions

  • the invention is directed to a press in the preamble of the claim 1 specified type.
  • a press has two one inside the other nested pistons that control each other via a pressure medium control punch a hole in the web in a coordinated manner and then to the Flare fastening of an eyelet reinforcing the hole created at the edge to serve.
  • These two works are divided between the two pistons, which is why the outer piston, which is used for flanging work on the eyelet, as a "flared piston” can be designated while the other, inner piston is the punching job for the hole and therefore acts as a "cutting piston".
  • the known hydraulic eyelet press of this type (EP-OS 0 320 578) was satisfied only with a single pressure medium line, but had to be in the axis area the piston has a mechanical pressure medium control that is prone to failure to be ordered.
  • This consisted of a stationary in the cylinder housing arranged, profiled control rod, from the pressure chamber of the cylinder housing through a breakthrough with a defined hollow profile had to protrude into the flask in the inner cylinder there.
  • the cutting piston working in the inner cylinder required axial and radial Bores for a specific pressure medium control. Due to inaccurate manufacturing or adjustment it could easily lead to malfunctions.
  • a an important disadvantage of the known eyelet press was its proportionality slow mode of operation during the working stroke and especially when Return stroke of the two pistons.
  • the return stroke could not by active Pressure control can be carried out, but was done passively Return springs. These return springs were between an outstanding one End piece of the flare piston and the cylinder housing in duplicate arranged on opposite sides. This required Space and made ergonomic handling of the press difficult, especially if it was designed as a portable handheld device.
  • the invention has for its object a reliable, space-saving To develop press of the type mentioned in the preamble of claim 1, which is characterized by a particularly fast way of working. This is according to the invention cited in the characterizing part of claim 1 Measures achieved, which have the following special advantages.
  • the press according to the invention comprises a cylinder housing 10 with two nested pistons 20, 30, which have a different function to perform.
  • a crimping tool 21 which with a crimping counter tool 22 works together to flare one at its best 5 and 6 apparent eyelet 40 to perform. That piston 20 is therefore to be referred to in the following for short as “flanging piston”.
  • the flare piston 20 has an inner cylinder 23 in its interior, in which the other inner piston 30 mentioned is guided, but with a piston rod 34 from a bottom end of the inner cylinder 23 Cylinder cover 24 protrudes.
  • This piston 30 has the task punch a hole 44 to be described in more detail in a path 41, which is why this piston 30 is hereinafter referred to as "cutting piston” for short shall be.
  • the lower end of the piston rod 34 abuts a cutting tool 31, which with one on the opposite Cutting counter tool 32 located on the side of the web 41 cooperates.
  • the cutting tool 31 is z. B. on the apparent from Fig. 1a Flange 35, held by the crimping tool 21, which in turn is attached to the cylinder cover 24.
  • the cylinder cover 24 is over a Plug part connected to the flare 20 and closes the inner cylinder 23 from.
  • the cutting counter tool 32 is identical to the flanging counter tool 22 connected and belongs to a foot 12 of the press.
  • the cylinder housing 10 with the two pistons 20, 30 accommodated therein is in a head 11 of the press.
  • This press head 11 is firmly connected to the press foot 12 and part of this as a hand-held device hydraulic eyelet press to be used.
  • the one to be processed with this press Lane 41 is in the starting position shown in FIG. 1a so placed between the press head 11 and the press foot 12 that with the eyelet 40 point 45 of the web 41 in alignment with the tools 21, 31 on both sides and 22, 32 on the other.
  • the eyelet 40 to be set is preferably made of two parts, namely an eyelet part gripped by the crimping tool 31 42 and a disk part 43 opposing it on the flanging counter tool 22. Both parts of the eyelet 40 have the task of Fig. 6 visible edge area 46 of the cut in the web 41 To reinforce hole 44.
  • the crimping piston 20 has a sealingly guided in the cylinder housing 10 Piston head 25, the interior of the cylinder housing 10 in two from each other separate pressure subspaces 15, 16 separates.
  • Rod space 16 Below the piston head 25, namely in the rod area of the flaring piston 20, is located Rod space 16, the second, best seen in Fig. 1b Pressure medium line 14 is connected.
  • This rod space 16 is over Channels 17 always in connection with the inner cylinder 23 in the flared piston 20, where the cutting piston 30 already described is located.
  • the cutting piston 30 is provided with a head region 33 which is in the inner cylinder of the flared piston 20 is guided in a sealed manner. Of that in the inner cylinder 23 pressure builds up only the forehead of the piston head area 33 applied while the piston rod 34 facing Bottom surface of the piston head region 33 is free of this pressure medium and, possibly via slotted seals, in the cylinder cover 24 with the atmosphere communicate
  • a special pressure medium control also belongs to the press according to the invention 50, of which a preferred embodiment is shown schematically in the circuit diagram 7.
  • This Pressure medium control 50 includes a dashed line Control block 51, preferably made of aluminum, with the manually operated Eyelet press is structurally connected and in which the above Pressure medium lines 13, 14 as integrated channels up to a control element 53 are continued.
  • the control member 53 is between two positions can be reversed and is briefly referred to as "main control element" be designated. Go beyond this main control link, in Control block 51, initially as integrated channels, two lines 18, 19 further and are, finally, outside the control block 51 as hoses led up to a pressure medium tank 52.
  • One line 18 acts as Pressure medium supply line for the press and leads through an oil filter 37 to two supply branches 18 '18' 'in which, as a pressure medium source, two mutually different pumps 38 ', 38' 'are located.
  • One pump 38 ' is a high pressure pump with a delivery pressure of e.g. B. 90 bar and a relatively large flow of about 3.3 ccm.
  • the other pump 38 ′′ is a low pressure pump with a delivery pressure from Z. B. 200 bar, but a small capacity of about 1 ccm.
  • Both pumps 38 ', 38' ' are preferred by a common one electric motor 39 operated.
  • the motor 39 is together with the two pumps 38 ', 38' 'as a unit with the control block 51 connected.
  • the other pressure medium line also ends before the main control element 53 19, which serves as a discharge of the pressure medium into the tank 52. Also in this derivative 19 is within that integrated in the control block 51 Channel a check valve 48 is provided.
  • this control element 54 is to be called a “secondary control element” be designated.
  • This secondary control element 54 is also between two positions to be described in more detail reversible.
  • Parallel to Auxiliary control element 54 is in a bypass 56 a pressure relief valve 55 switched.
  • This valve 55 is pressure adjustable, e.g. B. between 60 and 160 bar.
  • the derivative 19 therefore stands with the rod space located below the piston head 25 16 in the cylinder housing 10 in connection. This pass position is initially by the return springs provided in the secondary control member 54 secured. At the exit point of the press, the source of pressure medium can be found first 38 ', 38' 'are stopped and are only triggered when the Press effective.
  • the time limit described above for the pressure relief valve to take effect 55 during the cutting process in the second period 62 of Fig. 4 can in a particularly advantageous manner from the path of the flare 20 are derived.
  • the flanging piston 20 movable trigger member 26, which is a stationary Switch 28 is assigned.
  • the switch 28 is on the bypass of the Trigger member 26 responsive and sets the pressure relief valve described above 55 effective.
  • the response time of the switch 28, which the The aforementioned time limit is determined by the length of the response distance 65 of the switch 28 and the speed of the passing of the trigger member 26 determined. In the present case it is about an electrical switch 28, e.g. B. a magnetic switch in response an electrical signal via that indicated in the circuit diagram of FIG.
  • Active line 58 exerts on the secondary control member 54 and this in his transferred "locked position".
  • the electrical switch 28 is by electrical control means not shown only during the downward working stroke 29 of the flanging piston 20 is effective, but not if the special return stroke to be described in the end in the sense of arrow 59 shown in FIG. 3a, the trigger member 26 along the response path 65 already illustrated in FIG. 2b emotional.
  • the trigger member consists of a switch cam 26, which belongs to a switching rod 27 according to FIG. 2b.
  • the shift stick As shown in FIG. 2a, 27 sits on the cylinder cover 24, which is firmly connected to the flare piston 20.
  • the shift rod 27 is in the stroke direction 29 of the flared piston aligned and in an axial Guide 57 added longitudinally displaceable.
  • This axial guide 57 is integrated into the cylinder housing 10 and thus also functions as a Protection against rotation for the flare piston 20 and thus the eyelet part 42 crimping tool holder 21.
  • Such a twist protection is for not rotationally symmetrical eyelets meaningful, e.g. B. oval eyelets.
  • the shift cam begins 26 to move in the area of the magnetic switch 28.
  • the magnetic switch 28 is positioned at a defined location in the cylinder housing 10. Its prescribed response time results from the given Height 65 of this magnetic switch 28. In the sectional view of Fig. 2a, the magnetic switch 28 is invisible, but its location is there illustrated by dashed lines.
  • the transition between the second and third time period 62, 63 in the action diagram of FIG. 4 has been reached, when the switching cam 26 in the further execution of the working stroke 29 from the area of the magnetic switch 28 comes out again below.
  • FIG. 3a shows, to the flanging also recognizable from FIG the two eyelet parts 42, 43. Then begins, in the sense of the already mentioned Arrow 59, a return stroke 59 of the flanging piston 20, which is also indicated by a Time limit can be executed.
  • the downward stroke 59 takes place through those already described Components of the pressure medium control 50 according to the invention, such as can be seen from the circuit diagram of FIG. 7. It is e.g. B. about a further time control, the main control element 53 in that shown in FIG. 7 "Rest position" reset, where again the one already described first control section 53 'is effective. Meanwhile, the secondary control element remains 54 already in the third time period, as can be seen in FIG. 7 63 of FIG. 4 reached "passage position" for the pressure medium. Both pumps 38 ', 38' 'lead this via the second pressure medium line 14 Pressure medium in the rod chamber 16 below the piston head 25 of the flared piston 20, with which this second line 14 now as a pressure medium supply acts. Conversely, the front space shown in FIG. 3a is then 15 via the first line, which then acts as a pressure medium discharge 13 connected to the return line 19 to the tank 52.
  • the one described above is carried out Reversal of the main control element 53 for the fourth period 64 in a special way, namely by one illustrated in the circuit diagram of FIG. 7 Pressure switch 66.
  • This pressure switch 66 is on a specific one Limit pressure adjustable, the z. B. are between 50 and 200 bar can.
  • the pressure switch 66 responds to that in the end space 15 of the cylinder housing 10 resulting pressure at what in Fig. 7 by a with the first Pressure medium line 13 connecting line 67 illustrated is.
  • the set limit pressure in the pressure switch 66 reliably signals that the flanging piston 20 already described in connection with Fig. 3a Has carried out flaring work and gives an electrical active line 68 of Fig.
  • This pressure medium control 50 enables the pressure control device shown in FIG. 4 recognizable very fast return stroke of the flanging piston 20 during the fourth period 64 z. B. already within 0.33 sec.
  • the Inner cylinder 23 in the flared piston 20 pressurized and presses, in the course of the return stroke 59 of the flanging cylinder 20, finally also the cutting piston 30, relative to the flanging piston 20, again axially downward.
  • the cutting piston 30 In the intermediate position of the two to be passed through Piston 20, 30, which is shown for example in Fig. 2 a, reaches the Cutting piston 30 again its lower end position. His piston area 33 comes back into contact with the plug of the cylinder cover 24.
  • two further pressure relief valves 71, 72 in the control circuit of the Inlets and outlets 18, 19 can be arranged. Both valves 71, 72 are adjustable to their limit pressure.
  • the limit pressure can be at the pressure relief valve 71, which is in a bypass line 69 between the pressure medium supply line 18 and the pressure medium discharge line 19 is switched, for. B. can be set between 100 and 200 bar.
  • the other pressure relief valve 72 is in a connecting line 70 between the pressure medium discharge line 19 on the one hand and the one having the low pressure pump 38 ' Line branch 18 'switched and can, for. B. can be set to 90 bar.
  • the pressure medium tank 52 is provided with a filler neck having a filter 73 74 provided.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Press Drives And Press Lines (AREA)
  • Control Of Presses (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Valve Housings (AREA)
  • Earth Drilling (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (12)

  1. Presse actionnée par fluide sous pression, en particulier presse hydraulique à oeillets pour le poinçonnage de bandes (41), ainsi que pour la fixation de bordures d'oeillets (40) renforçant sur le bord (46) le trou (44) poinçonné,
    se composant d'un corps de cylindre (10) avec deux pistons (20; 30) montés télescopiquement l'un dans l'autre, à savoir
    un piston extérieur réalisant le travail de bordage de l'oeillet (40), dénommé un piston de bordage (20),
    qui d'une part dans le corps de cylindre (10) comporte une chambre de pression avec une conduite de fluide sous pression et qui d'autre part, porte l'outil de bordage (21) pour l'oeillet (40),
       avec un piston intérieur réalisant le travail de poinçonnage sur la bande (44), dénommé un piston de poinçonnage (30),
    et qui est guidé dans un cylindre intérieur (23) se trouvant à l'intérieur du piston de bordage (20) et actionne par sa tige de piston sortante (34) un outil de poinçonnage (31) pour la bande (41),
       avec une commande à fluide sous pression (50) pour le piston de bordage (20) et avec une valve de limitation de pression (55),
       caractérisé en ce que
    le piston de bordage (20) comporte une tête de piston (25) étanchée dans le corps de cylindre (10), et qui divise la chambre de pression en deux espaces partiels (15, 16) séparés l'un de l'autre,
    à savoir en une chambre frontale (15) se trouvant devant la zone frontale de la tête de piston (25) avec une première conduite de fluide sous pression (13), une chambre de tige (16) se trouvant dans la zone de tige du piston de bordage (20), avec une deuxième conduite de fluide sous pression (14),
       en ce que seule la deuxième conduite de fluide sous pression (14) est reliée par la chambre de tige (16) avec le cylindre intérieur (23) au piston de bordage (20), et en ce que le piston de poinçonnage (30) comporte une zone de tête (33) guidée de façon étanche dans le cylindre intérieur (23) du piston de bordage (20),
       en ce que, au cours de la course de travail (29) du piston de bordage (20), la première conduite de fluide sous pression (13) est reliée effectivement à la conduite (18) d'alimentation en fluide sous pression, et le piston de bordage (20) entraíne par conséquent le piston de poinçonnage (30), mais en ce que temporairement, une valve de limitation de pression (55) est interposée dans la liaison entre la deuxième conduite de fluide sous pression (14) et la conduite (19) d'évacuation de fluide sous pression, ce qui conduit à la diminution de la pression dans le cylindre intérieur (23) et provoque une course de travail propre et avancée (29) du piston de poinçonnage (30), et en ce que, au cours de la course de retour (59) du piston de bordage (20), la première conduite de fluide sous pression (13) est reliée à la conduite (19) de retour de fluide sous pression et la deuxième conduite de fluide sous pression (14) est reliée à la conduite (18) d'alimentation en fluide sous pression, tandis que le piston de bordage (20) entraíne le piston de poinçonnage (30).
  2. Presse selon la revendication 1, caractérisée en ce que l'activation limitée dans le temps de la valve de limitation de pression (55) est dérivée de la course active (29) du piston de bordage (20).
  3. Presse selon la revendication 2, caractérisée en ce qu'un organe de décharge (26) est relié au piston de bordage (20) et en ce que, sur le trajet de déplacement de l'organe de décharge entraíné (26), est positionné localement un interrupteur (28) qui répond au déplacement d'avance de l'organe de décharge (26) et qui, en cas de réponse, rend active la valve de limitation de pression (55).
  4. Presse selon la revendication 3, caractérisée en ce que l'interrupteur (28) est actif seulement pendant la course de travail (29), mais n'est pas actif pendant la course de retour (58) du piston de bordage (20).
  5. Presse selon la revendication 3 ou 4, caractérisée en ce que la durée de réponse de l'interrupteur (28) est déterminée par sa course de réponse (65) sur le trajet de déplacement de l'organe de décharge (26), ainsi que par la vitesse de l'organe de décharge (26) au cours du déplacement d'avance.
  6. Presse selon l'une ou plusieurs des revendications 3 à 5 caractérisée en ce que l'interrupteur (28) délivre, dans le cas où il est actionné, via une conduite de commande (58), un signal électrique à la valve de limitation de pression (55).
  7. Presse selon l'une ou plusieurs des revendications 2 à 6, caractérisée en ce qu'une barre de commutation (27) munie d'au moins une came de commutation (26) est reliée au piston de bordage (20) et est orientée dans la direction de déplacement de course (29, 59) du piston de bordage (20), tandis que l'interrupteur électrique réalisé sous la forme d'un interrupteur magnétique (28) est disposé à une hauteur définie par rapport au corps de cylindre (10).
  8. Presse selon la revendication 7, caractérisée en ce que la barre de limitation (27) est reçue coulissante longitudinalement dans un guidage axial (57) localement fixe et sert au blocage en rotation du piston de bordage (20).
  9. Presse selon l'une ou plusieurs des revendications 3 à 8, caractérisée en ce que l'interrupteur (28) agit sur un organe annexe de commande (54) branché uniquement sur la deuxième conduite de fluide sous pression (14) et en ce que l'organe annexe de commande (54) contrôle normalement un tronçon de commande (54') pour un passage du fluide sous pression, mais en cas d'activation, l'organe annexe de commande (54) agit par un tronçon de commande (54'') pour le blocage du fluide sous pression dans la deuxième conduite de fluide sous pression (14), et en ce que la valve de limitation de pression (55) est disposée parallèlement à l'organe annexe de commande (54) dans une conduite de dérivation (56) par rapport à la conduite de fluide sous pression (14).
  10. Presse selon l'une ou plusieurs des revendications 1 à 9, caractérisée en ce qu'un interrupteur de fin de course (66) sensible à la fin de la course de travail (28), agit sur un organe principal de commande (53) et, lorsqu'il est activé, fait passer cet organe principal d'une position de repos dans laquelle la deuxième conduite (14) sert à l'alimentation en fluide sous pression et la première conduite (13) sert à l'évacuation du fluide sous pression, à une position de travail où les fonctions précitées des deux conduites de fluide sous pression (13, 14) sont mutuellement inversées.
  11. Presse selon la revendication 10, caractérisée en ce que l'interrupteur de fin de course est réalisé sous la forme d'un interrupteur à pression (66), qui répond à une pression limite prédéterminée réglable dans l'espace frontal (15) du corps de cylindre (10) et qui fait commuter l'organe principal de commande (53), via un signal de commande électrique (conduite électrique de commande 58), de sa position de repos à la position de travail.
  12. Presse selon l'une ou plusieurs des revendications 1 à 11, caractérisée en ce que deux pompes (38', 38''), de préférence entraínées par un moteur commun (39) servent de source de fluide sous pression pour les commandes à fluide sous pression (50), à savoir une pompe à haute pression (38") à faible capacité de refoulement d'une part, et une pompe à basse pression (38') à grande capacité de refoulement, d'autre part.
EP94112951A 1993-11-10 1994-08-19 Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets Expired - Lifetime EP0655205B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4338288 1993-11-10
DE4338288A DE4338288A1 (de) 1993-11-10 1993-11-10 Druckmittelbetriebene Presse, insbesondere hydraulische Ösenpresse, zum Lochen von Bahnen und Setzen vondas Loch randseitig verstärkenden Ösen

Publications (3)

Publication Number Publication Date
EP0655205A2 EP0655205A2 (fr) 1995-05-31
EP0655205A3 EP0655205A3 (fr) 1996-05-01
EP0655205B1 true EP0655205B1 (fr) 1998-10-21

Family

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EP94112951A Expired - Lifetime EP0655205B1 (fr) 1993-11-10 1994-08-19 Presse à fluide sous-pression en particulier presse hydraulique à oeillets pour perforer des bandes et fixer des oeillets

Country Status (5)

Country Link
EP (1) EP0655205B1 (fr)
AT (1) ATE172362T1 (fr)
DE (2) DE4338288A1 (fr)
DK (1) DK0655205T3 (fr)
ES (1) ES2122111T3 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19751960C1 (de) * 1997-11-24 1999-01-07 Helmut Frey Vorrichtung zum Entfernen von Ösen
DE19822210A1 (de) * 1998-05-18 1999-11-25 Kraemer & Grebe Kg Lochstanze
CN102151748B (zh) * 2011-03-02 2012-11-07 浙江博雷重型机床制造有限公司 一种数控冲孔机床
ES1093205Y (es) * 2013-10-08 2014-02-11 Jopevi S L (100 0%) Mecanismo neumático para la colocación de arandelas y ojetes
CN104742179B (zh) * 2015-02-02 2016-08-24 上海理工大学 截断机用液压推进机构
EP3510883B1 (fr) * 2018-01-12 2020-07-08 Franz Miederhoff oHG Dispositif d'introduction d' illets dans une bâche textile ou plastique
CN110497498A (zh) * 2019-08-30 2019-11-26 王小改 一种巢框气眼安装装置
CN113084916B (zh) * 2021-04-02 2024-06-18 盐城市格瑞特机械有限公司 一种液压摆臂式下料机

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803698A (en) * 1972-07-11 1974-04-16 Textron Inc Control system for assembling apparatus
DE3742418A1 (de) * 1987-12-15 1989-07-06 Johannes Than Vorrichtung zum einstanzen von oesen in textil-, kunststoffplane oder dgl.
JPH0275433A (ja) * 1988-09-13 1990-03-15 Mitsubishi Heavy Ind Ltd 閉塞鍛造用復動ダイセット
JPH0616957B2 (ja) * 1989-10-05 1994-03-09 フガク工機株式会社 圧縮成形機におけるラムの昇降機構

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Publication number Publication date
EP0655205A3 (fr) 1996-05-01
ATE172362T1 (de) 1998-11-15
ES2122111T3 (es) 1998-12-16
EP0655205A2 (fr) 1995-05-31
DE59407122D1 (de) 1998-11-26
DK0655205T3 (da) 1999-06-28
DE4338288A1 (de) 1995-05-11

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