EP0517637A1 - Multiple tool bending head for a wire bending machine - Google Patents

Multiple tool bending head for a wire bending machine Download PDF

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Publication number
EP0517637A1
EP0517637A1 EP92440072A EP92440072A EP0517637A1 EP 0517637 A1 EP0517637 A1 EP 0517637A1 EP 92440072 A EP92440072 A EP 92440072A EP 92440072 A EP92440072 A EP 92440072A EP 0517637 A1 EP0517637 A1 EP 0517637A1
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EP
European Patent Office
Prior art keywords
cage
axis
wire
tool
casing
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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.)
Granted
Application number
EP92440072A
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German (de)
French (fr)
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EP0517637B1 (en
Inventor
Yves Latour
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Latour and Fils SA
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Latour and Fils SA
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Application filed by Latour and Fils SA filed Critical Latour and Fils SA
Publication of EP0517637A1 publication Critical patent/EP0517637A1/en
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Publication of EP0517637B1 publication Critical patent/EP0517637B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21F—WORKING OR PROCESSING OF METAL WIRE
    • B21F1/00—Bending wire other than coiling; Straightening wire

Abstract

A cylindrical casing (1) encloses a cage (2) which can rotate, under the action of a geared motor (22), about an axis perpendicular to the wire-passage axis, the cage (2) comprising, at its periphery, shafts (3, 4) sliding in housings (23, 24) in the said cage (2), and each comprising, at their end opposite that carrying the tool (41, 31), a peripheral groove (33, 43) in which passes the internal circumference of a ring (16) which is firmly attached to the casing (1) and to which is fixed a thrust cylinder (13) whose rod (14) can traverse the casing (1) via a slot (15) so as to be able to cause the shaft facing the corresponding housing of the cage (2) to slide, the end of the rod (14) of the thrust cylinder (13) being firmly attached to a cut-out portion (17) of the ring (16), which can be disconnected from the said ring (16), a geared motor (10) enabling, on the other hand, the shafts (3, 4) to be rotationally driven. <IMAGE>

Description

La présente invention a pour objet une tête de cambrage à outils multiples pour machine à cambrer les fils métalliques.The present invention relates to a multi-tool bending head for a machine for bending metal wires.

Il existe à ce jour deux grandes catérogies de machines à cambrer les fils métalliques, celles utilisées pour les grandes séries et comportant des outils de cintrage placés dans une position correspondant au profil que l'on désire donner au fil métallique, et celles utilisées pour les petites séries, ne nécessitant que peu d'outillage, contrairement aux précédentes, pour passer d'un profil à un autre.To date, there are two main categories of wire bending machines, those used for large series and comprising bending tools placed in a position corresponding to the profile which it is desired to give to the metal wire, and those used for the small series, requiring little tools, unlike the previous ones, to move from one profile to another.

Les machines à cambrer le fil de cette dernière catérogie sont pratiquement toutes conçues de la même manière, à savoir que le fil issu d'une bobine ou d'une botte passe par un redresseur, puis est pris en charge par un système d'amenage qui en amène la longueur voulue à l'outil de cambrage, généralement constitué d'un doigt et d'un organe cintreur entre lesquels passe le fil métallique, le pivotement dudit outil permettant le cambrage du fil.The machines for bending the wire of this latter category are practically all designed in the same way, namely that the wire from a spool or a boot passes through a rectifier, then is taken up by a feeding system. which brings the desired length to the bending tool, generally consisting of a finger and a bending member between which the metal wire passes, the pivoting of said tool allowing the bending of the wire.

L'inconvénient de ces machines est qu'elles ne comportent en général qu'un seul outil, et que, pour effectuer des cintrages avec des rayons de courbure différents, il est nécessaire de combiner le travail de l'outil avec l'avance du fil, ce qui dans certains cas ne permet pas d'obtenir un résultat d'une grande précision.The disadvantage of these machines is that they generally have only one tool, and that, in order to carry out bends with different radii of curvature, it is necessary to combine the work of the tool with the advance of the wire, which in some cases does not allow obtaining a result of high precision.

La présente invention permet de remédier à cet inconvénient en proposant une tête de cambrage à outils multiples, de conception simple, adaptable sur les machines de cambrage de fils métalliques.The present invention overcomes this drawback by proposing a bending head with multiple tools, of simple design, adaptable to bending machines for metal wires.

La tête de cambrage de fil objet de la présente invention est solidaire de l'extrémité d'un bras monté pivotant autour d'un axe longitudinal confondu avec l'axe de passage du fil, sur le bâti de la machine.The wire bending head object of the present invention is secured to the end of an arm mounted to pivot about a longitudinal axis coincident with the axis of passage of the wire, on the frame of the machine.

Conformément à l'invention, la tête de cambrage est constituée d'un carter cylindrique à l'intérieur duquel peut tourner, sous l'action d'un premier motoréducteur solidaire dudit bras, autour d'un axe perpendiculaire à l'axe de passage du fil, une cage cylindrique à la périphérie de laquelle sont disposés, également répartis, des arbres dont les axes sont parallèles à l'axe de rotation de ladite cage.According to the invention, the bending head consists of a cylindrical casing inside which can rotate, under the action of a first geared motor secured to said arm, about an axis perpendicular to the axis of passage wire, a cylindrical cage at the periphery of which are arranged, also distributed, shafts whose axes are parallel to the axis of rotation of said cage.

Chacun de ces arbres est monté coulissant dans ladite cage le long de son axe longitudinal, et peut également pivoter autour de cet axe sous l'action d'un second motoréducteur placé à l'extérieur du carter contenant la cage, et dont l'arbre menant traverse ladite cage le long de l'axe de rotation de celle-ci.Each of these shafts is slidably mounted in said cage along its longitudinal axis, and can also pivot around this axis under the action of a second geared motor placed outside the casing containing the cage, and whose shaft leading through said cage along the axis of rotation thereof.

Chaque arbre comporte à l'une de ses extrémités, celle affleurant le bord du carter du côté du passage du fil, un outil constitué d'un doigt et d'un organe cintreur.Each shaft has at one of its ends, that which is flush with the edge of the casing on the side of the passage of the wire, a tool consisting of a finger and a bending member.

Sur le carter, à l'extrémité opposée de la liaison de celui-ci au bras, est fixé un vérin d'axe parallèle à l'axe de rotation de la cage, du côté opposé à celui où passe le fil, la tige dudit vérin pouvant traverser ledit carter de manière à faire coulisser l'arbre qui se trouve en regard, l'outil qui équipe l'extrémité dudit arbre émergeant alors du plan du carter, au niveau du passage du fil.On the casing, at the opposite end of the connection of the latter to the arm, is fixed a cylinder with an axis parallel to the axis of rotation of the cage, on the side opposite to that on which the wire passes, the rod of said jack which can pass through said casing so as to slide the shaft which is opposite, the tool which equips the end of said shaft then emerging from the plane of the casing, at the passage of the wire.

Ainsi, lorsque le fil à traiter est amené de la longueur souhaitée le long du bras jusqu'à la tête de cambrage, le premier motoréducteur fait tourner la cage de manière à positionner en regard du vérin l'arbre périphérique portant l'outil qui doit entrer en action, la tige dudit vérin pousse l'arbre dont l'outil émerge au niveau du fil puis le deuxième motoréducteur fait pivoter de l'angle désiré ledit arbre porteur d'outil, provoquant le cintrage du fil.Thus, when the wire to be treated is brought from the desired length along the arm to the head of bending, the first gearmotor rotates the cage so as to position the peripheral shaft carrying the tool which must come into action opposite the jack, the rod of said jack pushes the shaft, the tool of which emerges at the level of the wire and then the second gear motor rotates said desired tool-carrying shaft by the desired angle, causing the wire to bend.

Le vérin se retire ensuite en ramenant l'arbre porteur d'outil, le fil est avancé et l'opération recommence avec le même outil ou un autre.The cylinder is then withdrawn by bringing back the tool carrying shaft, the wire is advanced and the operation begins again with the same tool or another.

La tête de cambrage selon l'invention permet avantageusement, d'une part de disposer de plusieurs outils pour une même machine de cambrage, d'autre part, quand le bras est dans une position donnée, en agissant sur la rotation de l'arbre portant l'outil, de cintrer le fil dans un sens ou dans un autre diamétralement opposés, en évitant ainsi d'avoir à faire effectuer au bras une rotation de 180°. Elle permet en outre, dans le cas de fils de diamètres différents, que ledit fil soit toujours tangent au doigt de l'outil, un calculateur numérique régissant les mouvements de la machine, positionnant l'outil de façon adéquate.The bending head according to the invention advantageously makes it possible, on the one hand, to have several tools for the same bending machine, on the other hand, when the arm is in a given position, by acting on the rotation of the shaft carrying the tool, bend the wire in one or another diametrically opposite direction, thus avoiding having to rotate the arm through 180 °. It also allows, in the case of wires of different diameters, that said wire is always tangent to the finger of the tool, a digital computer controlling the movements of the machine, positioning the tool adequately.

Les avantages et les caractéristiques de la présente invention ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé lequel en représente un mode de réalisation non limitatif.The advantages and characteristics of the present invention will emerge more clearly from the description which follows and which relates to the appended drawing which represents a non-limiting embodiment thereof.

La figure unique du dessin annexé représente une vue partielle et en coupe longitudinale d'une tête de cambrage selon l'invention.The single figure of the accompanying drawing shows a partial view in longitudinal section of a bending head according to the invention.

Sur cette figure on peut voir qu'à l'extrémité du bras 5 la tête de cambrage selon l'invention comporte un carter cylindrique 1 à l'intérieur duquel peut tourner une cage 2 sous l'action d'un motoréducteur 22 par l'intermédiaire de roues dentées 20 et 21 solidaires respectivement de la cage 2 et de l'arbre 22′ du motoréducteur 22.In this figure we can see that at the end of the arm 5 the cambering head according to the invention comprises a cylindrical casing 1 inside which can rotate a cage 2 under the action of a geared motor 22 by the intermediate of toothed wheels 20 and 21 respectively fixed to the cage 2 and the shaft 22 ′ of the geared motor 22.

La cage 2 comporte à sa périphérie des arbres, dont deux, 3 et 4, sont représentés sur la figure, d'axe longitudinal parallèle à l'axe de rotation YY′ de la cage 2 et perpendiculaire à l'axe XX′ de passage du fil.The cage 2 has at its periphery trees, two of which, 3 and 4, are shown in the figure, with an axis longitudinal parallel to the axis of rotation YY ′ of the cage 2 and perpendicular to the axis XX ′ of passage of the wire.

Ces arbres 3 et 4 peuvent coulisser longitudinalement dans la cage 2, dans des logements respectivement 23 et 24.These shafts 3 and 4 can slide longitudinally in the cage 2, in housings 23 and 24 respectively.

Les arbres 3 et 4 comportent chacun, à leur extrémité opposée à celle portant l'outil, une gorge périphérique, respectivement 33 et 43, dans laquelle passe la ciconférence intérieure d'un anneau 16 solidaire du carter 1.The shafts 3 and 4 each have, at their end opposite to that carrying the tool, a peripheral groove, respectively 33 and 43, through which the interior cone of a ring 16 secured to the casing 1 passes.

Sur ce carter 1, du côté opposé au bras 5, est fixé un vérin 13 d'axe parallèle à l'axe YY′, dont la tige 14 peut traverser le carter 1 par une lumière 15 de manière à pouvoir faire coulisser l'arbre en regard, en l'occurence sur la figure l'arbre 4, dans le logement 24 de la cage 2. A cet effet l'anneau 16 comporte une portion 17 découpée désolidarisable de l'anneau et solidarisée à l'extrémité de la tige 14 du vérin 13.On this casing 1, on the side opposite the arm 5, is fixed a jack 13 with an axis parallel to the axis YY ′, the rod 14 of which can pass through the casing 1 by a light 15 so as to be able to slide the shaft opposite, in this case in the figure the shaft 4, in the housing 24 of the cage 2. For this purpose the ring 16 has a cut-out portion 17 detachable from the ring and secured to the end of the rod 14 of cylinder 13.

Le carter 1 et la cage 2 sont traversés centralement, le long de l'axe YY,′ par l'arbre menant 11 d'un motoréducteur 10, l'arbre menant 11 comportant une roue dentée 12 pouvant entraîner en rotation les arbres périphériques 3 et 4 par l'intermédiaire de roues dentées, respectivement 30 et 40, dont sont munis les arbres 3 et 4.The casing 1 and the cage 2 are traversed centrally, along the axis YY, ′ by the driving shaft 11 of a geared motor 10, the driving shaft 11 comprising a toothed wheel 12 which can rotate the peripheral shafts 3 and 4 by means of toothed wheels, respectively 30 and 40, with which the shafts 3 and 4 are provided.

Ainsi le motoréducteur 22 entraîne en rotation la cage 2 de manière à sélectionner l'arbre, donc l'outil, nécessaire à l'opération à faire subir au fil, cet arbre étant positionné en regard du vérin 13. A ce moment la portion 17 de l'anneau 16 solidaire de la tige 14 du vérin 13 est positionnée dans la gorge périphérique 43 de l'arbre en question, et sous l'action de ce vérin 13 l'arbre coulisse et l'outil disposé à son extrémité émerge du carter 1 pour se retrouver sur l'axe XX′. Le motoréducteur 10 tourne alors de l'angle voulu de manière à donner au fil, pris dans l'outil, la courbure désirée. Si le cintrage suivant nécessite un autre outil, le vérin 13 ramène ensuite l'arbre et le motoréducteur 22 sélectionne l'autre outil.Thus the geared motor 22 rotates the cage 2 so as to select the shaft, therefore the tool, necessary for the operation to be subjected to the wire, this shaft being positioned opposite the jack 13. At this time the portion 17 of the ring 16 integral with the rod 14 of the jack 13 is positioned in the peripheral groove 43 of the shaft in question, and under the action of this jack 13 the shaft slides and the tool disposed at its end emerges from the casing 1 to meet on the axis XX ′. The geared motor 10 then rotates by the desired angle so as to give the wire, taken in the tool, the desired curvature. If the next bend requires another tool, the actuator 13 then returns the shaft and the gear motor 22 selects the other tool.

Dans le cas où deux cintrages consécutifs à effectuer avec le même outil sont sensiblement diamétralement opposés, plutôt que de faire effectuer au bras une rotation, l'arbre portant l'outil est ramené dans la cage, le motoréducteur 10 lui fait effectuer un demi-tour puis cet arbre est sorti à nouveau de la cage de manière à présenter l'outil symétriquement par rapport à sa position précédente, en vue d'effectuer le cintrage.In the case where two consecutive bends to be carried out with the same tool are substantially diametrically opposite, rather than causing the arm to rotate, the shaft carrying the tool is brought back into the cage, the geared motor 10 causes it to perform a half turn then this shaft is again out of the cage so as to present the tool symmetrically with respect to its previous position, for the purpose of bending.

Dans le cas de fils de diamètres différents, il suffit d'entrer dans le calculateur le diamètre du fil à traiter et l'arbre porteur de l'outil se positionnera, par l'intermédiaire de la cage, de manière que le fil soit tangent au doigt de l'outil, ceci s'effectuant sans qu'il y ait lieu de recourir à un autre moyen de déplacement du doigt, ce qui simplifie notablement la manoeuvre par comparaison avec celles exigées par les machines existantes.In the case of wires of different diameters, simply enter the diameter of the wire to be treated in the calculator and the carrier shaft of the tool will be positioned, via the cage, so that the wire is tangent with the finger of the tool, this being carried out without having to resort to another means of moving the finger, which considerably simplifies the operation in comparison with those required by existing machines.

Il va de soi que la présente invention ne saurait être limitée à la description qui précède, et qui peut subir un certain nombre de modifications sans pour autant sortir du cadre de l'invention. En particulier les outils portés par la tête de cambrage selon l'invention peuvent consister, pour certains, en d'autres types d'outils que des outils de cintrage.It goes without saying that the present invention cannot be limited to the above description, and which can undergo a certain number of modifications without departing from the scope of the invention. In particular, the tools carried by the bending head according to the invention may consist, for some, in other types of tools than bending tools.

Claims (1)

Tête de cambrage à outils multiples pour machine à cambrer les fils métalliques, solidaire de l'extrémité d'un bras monté pivotant autour d'un axe longitudinal confondu avec l'axe de passage du fil, caractérisé en ce qu'elle comprend un carter cylindrique (1) à l'intérieur duquel une cage (2) peut tourner, sous l'action d'un motoréducteur (22), autour d'un axe perpendiculaire à l'axe de passage du fil, la cage (2) comportant à sa périphérie des arbres (3, 4) dont les axes sont parallèles à son axe de rotation YY′ et perpendiculaires à l'axe XX′ de passage du fil, lesdits arbres (3, 4) pouvant coulisser longitudinalement dans ladite cage (2), dans des logements (23, 24) et comportant chacun, à leur extrémité opposée à celle portant l'outil (31, 41), une gorge périphérique (33, 43) dans laquelle passe la circonférence intérieure d'un anneau (16) solidaire du carter (1), sur lequel est fixé un vérin (13) d'axe parallèle à l'axe (YY′), dont la tige (14) peut traverser le carter (1) par une lumière (15) de manière à pouvoir faire coulisser l'arbre en regard dans le logement correspondant de la cage (2), l'extrémité de la tige (14) du vérin (13) étant solidarisée à une portion (17) découpée de l'anneau (16), désolidarisable dudit anneau (16), un moto-réducteur (10) permettant d'autre part d'entraîner en rotation les arbres (3, 4).Multi-tool bending head for a wire bending machine, secured to the end of an arm mounted to pivot about a longitudinal axis coincident with the axis of passage of the wire, characterized in that it comprises a casing cylindrical (1) inside which a cage (2) can rotate, under the action of a geared motor (22), around an axis perpendicular to the axis of passage of the wire, the cage (2) comprising at its periphery trees (3, 4) whose axes are parallel to its axis of rotation YY ′ and perpendicular to the axis XX ′ of passage of the wire, said trees (3, 4) being able to slide longitudinally in said cage (2 ), in housings (23, 24) and each comprising, at their end opposite to that carrying the tool (31, 41), a peripheral groove (33, 43) through which the inner circumference of a ring (16 ) integral with the casing (1), on which is fixed a jack (13) with an axis parallel to the axis (YY ′), whose rod (14 ) can pass through the casing (1) by a light (15) so as to be able to slide the shaft opposite in the corresponding housing of the cage (2), the end of the rod (14) of the jack (13) being secured to a portion (17) cut from the ring (16), separable from said ring (16), a geared motor (10) on the other hand allowing the shafts (3, 4) to rotate.
EP92440072A 1991-06-06 1992-06-05 Multiple tool bending head for a wire bending machine Expired - Lifetime EP0517637B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9107101 1991-06-06
FR9107101A FR2677282B1 (en) 1991-06-06 1991-06-06 MULTIPLE TOOL BENDING HEAD FOR METAL WIRE BENDING MACHINE.

Publications (2)

Publication Number Publication Date
EP0517637A1 true EP0517637A1 (en) 1992-12-09
EP0517637B1 EP0517637B1 (en) 1995-05-17

Family

ID=9413703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92440072A Expired - Lifetime EP0517637B1 (en) 1991-06-06 1992-06-05 Multiple tool bending head for a wire bending machine

Country Status (12)

Country Link
US (1) US5349838A (en)
EP (1) EP0517637B1 (en)
AT (1) ATE122590T1 (en)
AU (1) AU705603B2 (en)
CA (1) CA2110798C (en)
DE (1) DE69202517T2 (en)
DK (1) DK0517637T3 (en)
ES (1) ES2073269T3 (en)
FR (1) FR2677282B1 (en)
GR (1) GR3017038T3 (en)
WO (1) WO1992021455A1 (en)
ZA (1) ZA924120B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999026739A1 (en) * 1997-11-26 1999-06-03 M.E.P. Macchine Elettroniche Piegatrici S.P.A. Bending machine with variable bending tool
EP2902132A1 (en) * 2014-02-04 2015-08-05 Shinko Machinery Co., Ltd. Bending device and spring manufacturing machine
CN105798198A (en) * 2016-05-27 2016-07-27 王春明 Steel bar bender for building construction
CN110961548A (en) * 2019-12-04 2020-04-07 陆彬燕 Construction steel bar processing equipment
CN111745084A (en) * 2020-07-22 2020-10-09 郭鹏 Dedicated thin steel bar of building site is cuted and is bent all-in-one

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904295A (en) * 1960-03-25 1962-08-29 Franz Mohr Improvements in or relating to bending machines for bending reinforcements for ues in concrete
EP0079587A1 (en) * 1981-11-18 1983-05-25 Oemb SA Wire-bending machine
EP0108695A1 (en) * 1982-11-08 1984-05-16 Autocoussin Industrie Automatic machine for bending thin and rectilinear metallic elements, especially metal wire, into a spatial configuration
EP0123231A1 (en) * 1983-04-18 1984-10-31 BUCHER, Franz Bending machine
GB2172229A (en) * 1985-03-12 1986-09-17 Alpha Maschinenbau Ag Bending apparatus with bending cores on a turret

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3299681A (en) * 1960-03-22 1967-01-24 Baldwin Lima Hamilton Corp Program controlled tube bender
AT378135B (en) * 1983-05-18 1985-06-25 Evg Entwicklung Verwert Ges BENDING MACHINE FOR WIRE OR TAPE-SHAPED MATERIAL

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB904295A (en) * 1960-03-25 1962-08-29 Franz Mohr Improvements in or relating to bending machines for bending reinforcements for ues in concrete
EP0079587A1 (en) * 1981-11-18 1983-05-25 Oemb SA Wire-bending machine
EP0108695A1 (en) * 1982-11-08 1984-05-16 Autocoussin Industrie Automatic machine for bending thin and rectilinear metallic elements, especially metal wire, into a spatial configuration
EP0123231A1 (en) * 1983-04-18 1984-10-31 BUCHER, Franz Bending machine
GB2172229A (en) * 1985-03-12 1986-09-17 Alpha Maschinenbau Ag Bending apparatus with bending cores on a turret

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999026739A1 (en) * 1997-11-26 1999-06-03 M.E.P. Macchine Elettroniche Piegatrici S.P.A. Bending machine with variable bending tool
EP2902132A1 (en) * 2014-02-04 2015-08-05 Shinko Machinery Co., Ltd. Bending device and spring manufacturing machine
US9682417B2 (en) 2014-02-04 2017-06-20 Shinko Machinery Co., Ltd. Bending device and spring manufacturing machine
CN105798198A (en) * 2016-05-27 2016-07-27 王春明 Steel bar bender for building construction
CN110961548A (en) * 2019-12-04 2020-04-07 陆彬燕 Construction steel bar processing equipment
CN110961548B (en) * 2019-12-04 2021-11-09 汪志丹 Construction steel bar processing equipment
CN111745084A (en) * 2020-07-22 2020-10-09 郭鹏 Dedicated thin steel bar of building site is cuted and is bent all-in-one

Also Published As

Publication number Publication date
EP0517637B1 (en) 1995-05-17
AU1906392A (en) 1993-01-08
ES2073269T3 (en) 1995-08-01
DE69202517T2 (en) 1995-10-05
FR2677282B1 (en) 1993-10-22
AU705603B2 (en) 1999-05-27
CA2110798C (en) 2002-09-17
US5349838A (en) 1994-09-27
FR2677282A1 (en) 1992-12-11
WO1992021455A1 (en) 1992-12-10
CA2110798A1 (en) 1992-12-10
GR3017038T3 (en) 1995-11-30
DK0517637T3 (en) 1995-09-11
DE69202517D1 (en) 1995-06-22
ATE122590T1 (en) 1995-06-15
ZA924120B (en) 1993-02-24

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