US3774434A - Arrangement for bending of bars of reinforcing steel mats - Google Patents

Arrangement for bending of bars of reinforcing steel mats Download PDF

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Publication number
US3774434A
US3774434A US00288152A US3774434DA US3774434A US 3774434 A US3774434 A US 3774434A US 00288152 A US00288152 A US 00288152A US 3774434D A US3774434D A US 3774434DA US 3774434 A US3774434 A US 3774434A
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bending
mandrels
support beam
pivoting
arrangement
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US00288152A
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English (en)
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R Bock
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    • 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
    • B21D11/00—Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/10—Bending specially adapted to produce specific articles, e.g. leaf springs
    • B21D11/12—Bending specially adapted to produce specific articles, e.g. leaf springs the articles being reinforcements for concrete
    • B21D11/125—Bending wire nets

Definitions

  • a pivoting bar engaging beam having a pivot axis disposed parallel to the bearing surface, is provided with a plurality hook-like bar bending members each of which coacts with a hook-like bending mandrel.
  • the supporting beam being further provided with a multipart bending shoulder and the pivoting bar engaging beam being swingably at least on one side of the bearing surface behind the multipart bending shoulder.
  • the invention relates to an arrangement for bending.- reinforcing steel mats.
  • This: arrangement comprises a fixed support beam having abearing surface for receiving the reinforcing'steel mats, and'aplurality-of bending mandrels coaxially arranged above the bearing surface. These plurality of bending" mandrels are spaced from each other andhave hook-like shapes.
  • A-pivoting bar engaging beam is swingably mounted about an axis whichis'parallel to the bearing surface and a plurality of bar engaging members are adapted to coact with the I bending mandrels:
  • the installation of the invention has a pivoting beam having a plurality of rod engaging hook-like members which coact with hook-like bending mandrels disposed on the supporting beam:
  • the reinforcing steel mat is located in a transfer space and the pivoting beam is mounted in the installation in such a way that it can be pivoted at least on one side behind a unior multipart shoulder of the installation.
  • a reinforcing-steel mat can be bent at one side of the supporting or bearing surface of the support'beam of the installation about bending mandrels in an angular range of 0-l80 as wellas on the other side of the bearing surface'about"a bendingshoulder in an angular range of 0
  • the reinforcing steel mats can be easily removed after the bending of the individual bars has been completed'without the necessityof removing any members of th'e installation before removing the reinforcing steel mats.
  • lt- is also contemplated by the present invention to provide an installation with a single pivoting beam which is arranged underneath the supporting beam and can be-p'ivoted selectivelyfrom one to the other side of the supportingbeam.
  • the rod engaging mandrels are disposed on the pivoting beam in such a manner that these rod engaging mandrels can be selectively moved to either side of the bearing surface during the bending process.
  • Two rows of coaxially arranged rod engaging mandrels are mounted on the pivoting beam, these two rows being arranged symmetrically with respect to a plane extending through the pivot axis of the pivoting beam; said pivoting axis of the pivoting beam extending in asymmetrical plane of the fixed supportingbeam.
  • the supporting beam is advantageously provided along both sides of the bearing surface on which the reinforcing steel mat rests with longitudinal shoulders which assist in the bending process.
  • the bending mandrel which serves to assist in the bending of the reinforcing mats to the other side of the bearing surface can be disposed'in" the same symmetrical plane as the axis of thepivoting'beam.
  • the pivoting beam can be pivoted from one to the other side of the supporting beam.
  • the two rows of rod engaging mandrels can via the supporting beam affect bending of the reinforcingmat on both sides of the-supporting beam upwardly as well as below the bearing surface supporting the steel mat.
  • the rod engaging mandrels, as well as the bending mandrels can be provided with rollers which facilitate the bending process.
  • the supporting beam may be provided at its underside with curved portions which coact with the rollers of the rod engaging mandrels mounted on the pivoting beam.
  • a further substantial advantage of the arrangement in accordance with the invention is attained by mounting the bending mandrel adjustably relative to the bearing surface of the supporting beam so that it can be pressed against a reinforcing steel mat introduced into the installation by means of a common work-locating fixture. In this manner, the movement of the reinforcing steel mat, which generally occurs and is undesirable, can be prevented during all types of bending processes.
  • the arrangement in accordance with the invention not only makes it possible to carry out an increased number of types of bending operations, but also makes it possible to fabricate reinforcing steel mats with precision.
  • the bending mandrels which coact with the worklocating fixture are provided at their shank portion with inclined guiding surfaces which coact with the mating guiding surfaces of a common actuating member which is slidably mounted in the supporting beam.
  • the inclined guiding surfaces of the actuating member are formed by a lateral projection which extends into a mating inclined groove in the shank portion of the bending mandrel.
  • the pivoting beam and the worklocating fixture can be driven and actuated by mechanical, hydraulic or pneumatic means, in a known manner, and can be either controlled manually or by means of a computer.
  • the actuating member for the worklocating fixture can, in accordance with the invention, be provided with a hydraulic actuating cylinder and piston which is arranged in the interior of the supporting beam. The piston of this cylinder and piston arrangement is operatively connected for reciprocable movement of the actuating member.
  • FIG. 1. is a schematic elevational view of the entire installation for bending reinforcing steel mats in accordance with a first embodiment of the invention
  • FIG. 2. is a cross-sectional view along Line II II of FIG.1 wherein the pivoting beam is shown in a first position;
  • FIG. 3. is a cross-sectional view along Line III III wherein the pivoting beam is shown in a second position
  • FIG. 4. is a partial cross-sectional view of the supporting beam along line IV IV of FIG. 3;
  • FIG. 5. is a cross-sectional view at the same location as the cross-sectional view illustrated in-FIGS.2 and 3 relative to the elevational view of FIG. 1. of a second embodiment of the installation for bending reinforcing steel mats;
  • FIG. 6. is a partial side elevational view of the second embodiment of the invention in the region where the pivoting beam is supported on the support beam;
  • FIG. 7. is a partial side elevational view of a third embodiment of the invention.
  • FIG. 8. is a cross-sectional view along Line VIII VIII of FIG. 7 in the region of the bending means of the installation.
  • FIG. 9. illustrates the bending means of the third embodiment in a different position than that of FIG. 8.
  • FIG.1 where there is illustrated a first embodiment of the installation for bending of reinforcing steel mats, there are shown two lateral column supports 10 and 11 on which there is mounted a support beam 12.
  • the upper side of the support beam 12 has a bearing surface 13 for receiving the reinforcing steel mats.
  • a plurality of hook-shaped bending mandrels l4 removeably mounted in the support beam 12.
  • These bending mandrels 14 are adjustably mounted in the support beam 12 so that the distance between the bearing surface 13 and the bending mandrel 14 can be adjusted. as will be described below.
  • the bending mandrels 14 are coaxially arranged in support beam 12 at equal distances, said distances corresponding to the standard distances employed for reinforcing steel bars in reinforcing steel mats.
  • the hook-shape of the bending mandrels makes it possible to freely insert a rein forcing steel mat on the bearing surface 13 of the support beam 12 and introduction of the longitudinal rods of the reinforcing steel mat under the bending mandrels 14 by laterally sliding the steel mat on the bearing surface 13.
  • the support beam 12 is provided at both of these longitudinal sides with bending shoulders 25 and 26 of semicircular cross-section which can coact with the rods of the reinforcing steel mats during the bending process.
  • the bending installation has, furthermore, a pivoting beam 15 which is swingably mounted on the support beam 12 by means of a pair of arms 16 extending from opposite ends of the pivoting beam 15 as is shown in FIG. 1.
  • the pivoting beam 15 can advantageously be also supported at its middle by means of a standard pivot support and thus extends parallel to the support beam 12.
  • the pivoting beam 15 can thus be swung by drive means 17, which can be of the conventional mechanical, pneumatic or hydraulic type, and which, for example, swing the pivoting beam 15 by means of a gear rack 18 which engages a gear wheel 19 fixedly secured to one of the support arms 16 as shown in FIG. 1.
  • the swinging movement of the pivoting beam 15, can however also be carried out by means of an hydraulic pressure cylinder piston arrangement (non illustrated) which swings the pivoting beam 15 by means of a crank mechanism (not illustrated).
  • the drive means for swinging the pivoting beam 15 can be embodied in any one of the conventional drive means.
  • the support beam 12 is hollow and has a free inner space 120.
  • Each one of the bending mandrels 14 has a shank portion 140 which extends into this hollow space to a pair of confronting openings and 140" (see FIG. 4). All of the shank portions 140 are symmetrically aligned along a vertical symmetrical plane 120 as shown in FIGS. 2 and 3.
  • the pivot axis 21 for the pivoting beam 15 is also situated in the vertical symmetrical plane 20.
  • the pivoting beam 15 can be swung symmetrically with respect to the supporting beaml2 from one longitudinal sideto the-other under- I lers and which are connectedto the main beam by means of'arms 24.
  • the tworows ofrod engaging mandrels 22 and 23 are symmetrically arranged abouta mid-plane which divides thepivoting member 15 into two equal symmetrical parts.
  • the rod' engaging'mandrels 22 and 23 are coaxially arrangedonthe pivoting beam 15 intwo rows so that one rod engagingmandrel is disposed on each side of the bending mandrel 14, that is the rod engaging mandrels are spaced from each other approximately the same distance as the bending mandrels 14 as can be noted from FIG. 1."
  • FIG. 2 illustrates the bending operation of a reinforcing steel mat, consisting of transverse-rods 28 and longitudinal rods 27, in which the longitudinal rods'27 are bent in the shape of a hook.
  • the conventional reinforcing steel mat is placed on the bearing surface 13 of the support beam 12 .in the aforede'scribed'manner and, is
  • the bending beam 15 is situated in the position indicated in full lines in FIG. 2, in which both rows of rod engaging mandrels 22 and 23 are situated below the plane of the bearing surface 13. The bending operation is effectedby swinging steel mat at about an-angle of about 90.
  • the rod engaging mandrel 22 is situated above the longitudinal reinforcing rod 27, that is, above the bearing surface 13 of the supporting beam 12.
  • the bending operation is carried out by swinging the pivoting beam 15 about its axis 21 in a counter-clockwise direction from the position shown in full lines to the position shown in dot-dash lines.
  • the longitudinal rods 27 of the reinforcing steel mat 27/28 are bent about thebending symmetrical arrangement of the bending mandrels l4 and the bending shoulders 25 and 26 on the supporting beam 12, a bending operation of a reinforcing steel mat on both sides of a supporting beam.
  • the rods can actually be bent over a range of 0-l
  • the bending can be carried out over a range of from about Ol l0.
  • the support beam 12 is provided at its underside with a curved surface 29 against which the rollers of the rod engaging mandrels 22 and 23 can bear, so that during one portion of the angular bending range thepivoting beam 15 is shored-up at the support beam 12 and a corresponding lightening of the load is carried out atthe support arms 16 of the pivoting beam
  • the arrangement of the invention comprises further means for firmly holdingor clamping the reinforcing steel mat 27/28 on the bearing surface 13 by means of the bending mandrels 14.
  • This means for fixing the work piece on the bearing surface 13 comprises a rail member 30disposed in the interior space of the support beam 12. This rail member 30 is slidably moveably by means of a hydraulic piston and cylinder arrangement 40 as illustrated in FIG. 4.
  • the rail member 30- has on one side inclined cam members 31, which are uniformly spaced from each other. These cam members 31 extend into inclined grooves 141 in the shank portions 1400f the bending mandrels l4 laterally disposed in the support beam 12.
  • the bending mandrels 14 can thus be selectively moved by a longitudinal movement of the rail member 30 towards or away from the bearing surface 13 of the support beam 12, that is allbending mandrels can be jointly moved in one direction or the other.
  • the longitudinal rods 27 of the reinforcing steel mat 27/28 can be firmly clamped on the bearing surface 13, as is shown in FIGS. 2 and 3 by means of the dot-dash lines 14' illustrating the clamping position of the bending mandrels.
  • FIG. 5 a cross-sectional view of a second embodiment of the invention which operates in a similar manner than the embodiment illustrated in the cross-sectional views of FIGS. 2 and 3.
  • the pivoting beam 35 is not mounted symmetrically with respect to a plane traversing the support beam 32, but is mounted about a swing axis 36 situated outside of the support beam 32 and underneath the reinforcing steel mat supporting surface 37.
  • the pivoting beam 35 can be swung downwardly into thedot-dash line position 35, in which it is situated behind a bending shoulder 38 which projects laterally to a considerable extent from the support beam 32 thereby enlarging the reinforcing steel mat-support surface 37.
  • the rod engaging mandrels 33 as well as the bending mandrels 34 are also hook-shaped in this embodiment. Furthermore, the rod engaging mandrels 33 are spaced a greater distance laterally from the pivoting beam 35, so that when the pivoting beam assumes the position 35' indicated in dot-dash lines in there is provided a space through which the longitudinal rods 27 which have been bent around the shoulder 38, can be moved. This feature makes it possible to remove the bent reinforcing steel mat from the installation by a lateral movement away from the bending mandrel 34 and the rod engaging mandrel 33 without requiring the disassembling of any parts of the installation.
  • the pivoting beam 35 is also illustrated in a third position 35" in FIG. 5, in which it effects a bending of a longitudinal rod 27 into outwardly directed hooks 27 illustrated in dot-dash lines in FIG. 5.
  • FIG. 5 has the advantage of making it possible to support the pivoting beam 35 at a plurality of locations along its length.
  • This feature is illustrated in FIG. 6 where the bending shoulder 38 is provided with cutouts extending upto the bending axis 38 in which'there is mounted a support arm 39 of the pivoting beam 35.
  • the holding arm 39 is pivotally mounted in the region of the bending shoulder 38 by means of a pivot pin 39' and a bearing support 39" which is rigidly secured to the support beam 32 in a conventional FIG. manner which has not been illustrated in detail.
  • the embodiment of FIGS. 5 and 6 has the drawback that the bending of the reinforcing rods can only be carried out out outwardly and downwardly relative to the support beams 32 on one side thereof.
  • This drawback can be removed by simply redesigning the support beam 32 so that it is symmetrical about a midplane, that is that it has a second non-illustrated shoulder 38 extending from the other sidethereof on which there is pivotally mounted a second pivoting beam 35 (not illustrated) having a corresponding number of non-illustrated rod engaging mandrels 33. Both pivoting beams would be separately driven by separate driving means which could also be computer-controlled.
  • the rod engaging mandrels 33 and the bending mandrels 34 are correspondingly spaced and arranged relative to the longitudinal rods 27 of the reinforcing steel mat so that even with this expanded installation a bending operation of a reinforcing steel mat can be carried out in both sides of the support beam upwardly as well as downwardly relative to a bearing surface, and after each bending operation the reinforcing steel mat can be freely removed from the installation.
  • the bending mandrels 34 can be connected with a clamping and work-fixing means as was described in connection with FIG. 4.
  • the bending mandrels of both rows can be actuated by means of a single rail member, which, for example, is provided at both of its level sides with inclined cams and thus can effect a simultaneous clamping action on two rows of bending mandrels.
  • the arrangement of the invention can be so modified that all types of radii of curvature can be effected with the machine of the invention.
  • the bending mandrels 14, 34 and the pivoting beam 15, 35 with its rod engaging mandrels 22,23 can be exchanged or adjusted, as is for example described in German Pat. No. 1,283,790 of the same inventor. and assignee.
  • the pivoting beams can be embodied as two coaxially arranged pipes wherein the inner pipe is provided with supporting arms on which the beam is mounted and in which the outer pipe is rotatable and supports the rod engaging mandrels.
  • the bending mandrels of the support beams can be removeably mounted and can be exchanged with bending mandrels of different diameters.
  • FIGS. 7 to 9 illustrate such an embodiment for bending reinforcing steel mats in which the pivoting beam is mounted on two concentric pipes.
  • the outer pipe 151 has slit-like openings, not clearly visible in FIGS. 7 to 9, in to which there extend supporting arms 43 on which is mounted a pipe 40 acting as a support beam.
  • This pipe 40 extends to a support ring 44 which is rigidly secured to the arm 43 or is integral therewith.
  • the support arms 43 perform a function similar to the function performed by the support arms 16 of the embodiment of FIG. 1 and, therefore, only one support arm has been illustrated.
  • a non-illustrated hydraulic drive means which is operatively connected either to the arms 43 or the support ring 44 for pivoting the pivoting beam 151/ I52 about the longitudinal axis of the pipe 40 acting as a support beam during the bending operation.
  • the pipe 40 acting as a support beam is, as in the other embodiments, provided with bending mandrels 45 onto which there can be mounted bending cylinders 46, 46 of different diameters.
  • bending shoulders 25 and 26, which are incorporated in the embodiment of FIGS. 1 to 3 there are provided a plurality of lateral bending mandrels 47 and 48 which are securely mounted on the pipe 40. These bending mandrels 47 and 48 can also be changed by mounting thereon bending cylinders 49 and 50 of different diameters.
  • the arrangement can be adjusted for different diameter bending mandrels, such as for example an adjustment from a bending cylinder 46 of a small diameter to a bending cylinder 46' of a much larger diameter, as shown in FIG. 8, by turning the pipes 151 and 152 relative to each other so that the rod engaging mandrel 4] assumes the position of the rod engaging mandrel 41 illustrated in dashed lines as shown in FIG. 8.
  • the longitudinal rods 27 can be bent about a much larger radius of curvature as shown in FIG. 8.
  • the means for turning the outer pipe 151 relative to the inner pipe 152 is not illustrated in detail in the drawing because such means are conventional and well known in the arts. Such means are, for example, illustrated and described in German Pat. No. l,283,790, wherein the aforementioned means can operate even during the bending process.
  • FIG. 9 illustrates a bending process about a lateral bending mandrel 48.
  • the longitudinal rod 27 of a reinforcing steel mat is bent about a lateral bending mandrel 48 on which there is mounted a bending cylinder 50 of relatively small diameter until the free end of the longitudinal rod assumes the position 27'.
  • This bending operation is carried out by means of the rod engaging mandrel 41 shown in full lines in FIG. 9. If the rods of the reinforcing steel mat are to be bent with a larger bending radius, then the bending cylinder 50' of larger diameter is mounted on the bending mandrel 48, the bending cylinder 50' being shown in dashed lines in FIG. 9.
  • the other pipe 151 is then turned relative to the inner pipe 152 in order to adapt the arrangement to the bending cylinder 50 until the rod engaging mandrels assume the position 41' illustrated in dashed lines in FIG. 9. In this latter position, the longitudinal rods 27 can be bent about the bending cylinder 50' until they reach the position 27".
  • An arrangement for bending reinforcing steel mats comprising in combination:
  • a fixed support beam having a bearing surface for supporting a reinforcing steel mat and having at least one lateral bending shoulder
  • said pivoting beam being pivotable relative to said support beam over an angular range enabling the pivoting beam to move at least on one side of said bearing surface behind said lateral bending shoulder.
  • said drive means comprises a cylinder and an hydraulically actuated piston reciprocally mounted in said cylinder, said piston being connected to said longitudinal member and said cylinder being arranged inside said support beam.
  • said pivoting beam is embodied in two coaxially arranged pipes rotatable relative to each other, one of said pipes supporting said rod engaging mandrels and the other one of said pipes being rotatably mounted on the stationary portion of the arrangement.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Rod-Shaped Construction Members (AREA)
US00288152A 1971-09-14 1972-09-11 Arrangement for bending of bars of reinforcing steel mats Expired - Lifetime US3774434A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2145809A DE2145809B2 (de) 1971-09-14 1971-09-14 Einrichtung zum Biegen von Baustahlmatten

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US3774434A true US3774434A (en) 1973-11-27

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US00288152A Expired - Lifetime US3774434A (en) 1971-09-14 1972-09-11 Arrangement for bending of bars of reinforcing steel mats

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US (1) US3774434A (de)
BE (1) BE788348A (de)
CA (1) CA964177A (de)
CH (1) CH540077A (de)
DE (1) DE2145809B2 (de)
FR (1) FR2152967B1 (de)
GB (1) GB1383857A (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515004A (en) * 1982-10-07 1985-05-07 Jenglo Engineering, Inc. Welded wire fabric bending apparatus and method
US20060053857A1 (en) * 2004-09-10 2006-03-16 Durney Max W Tool system for bending sheet materials and method of using same
US20080048366A1 (en) * 2006-08-28 2008-02-28 Industrial Origami, Inc. Method and Apparatus For Imparting Compound Folds on Sheet Material
US8114524B2 (en) 2002-09-26 2012-02-14 Industrial Origami, Inc. Precision-folded, high strength, fatigue-resistant structures and sheet therefor
US8438893B2 (en) 2006-10-26 2013-05-14 Industrial Origami, Inc. Method of forming two-dimensional sheet material into three-dimensional structure
US8505258B2 (en) 2000-08-17 2013-08-13 Industrial Origami, Inc. Load-bearing three-dimensional structure
US8936164B2 (en) 2012-07-06 2015-01-20 Industrial Origami, Inc. Solar panel rack
CN110560614A (zh) * 2019-09-25 2019-12-13 千瑞机电科技(丹阳)有限公司 一种烟道矩形钢丝网笼折边成型设备
WO2021175632A1 (de) * 2020-03-03 2021-09-10 Progress Maschinen & Automation Ag Biegekopf für baustahlmatten

Families Citing this family (11)

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Publication number Priority date Publication date Assignee Title
DE2952026A1 (de) * 1979-12-22 1981-06-25 Peddinghaus, Rolf, 5828 Ennepetal Biegemaschine zum gleichzeitigen biegen von betonstahldraehten bei baustahlmatten
DE3013849A1 (de) * 1980-04-10 1981-10-15 Peddinghaus, Rolf, 5828 Ennepetal Biegedornanordnung fuer eine biegemaschine zum gleichzeitigen biegen von betonstahldraehten
DE3628491A1 (de) * 1986-08-22 1988-02-25 Fischer Draht Ag Maschine und verfahren zum biegen und buendeln von anschlusskoerben
DE3838841A1 (de) * 1988-11-17 1990-05-23 Rudolf Bock Biegemaschine fuer baustahlmatten
DE3919626A1 (de) * 1989-06-15 1991-01-03 Heinz Ruhl Verfahren und vorrichtung zum biegen von flaechigem metallmaterial
AT397358B (de) * 1990-06-25 1994-03-25 Anzinger Martin Biegevorrichtung für gittermatten od. dgl.
US5082429A (en) * 1990-08-28 1992-01-21 Cole-Parmer Instrument Company Peristaltic pump
BE1006712A3 (nl) * 1993-01-29 1994-11-22 Sumaco Inrichting voor het in een beweging plooien van een reeks naast elkaar liggende draden behorende tot een net.
EP0698429A1 (de) * 1994-08-25 1996-02-28 Altro Steel N.V. Vorrichtung zum Biegen in einem Arbeitsgang von einer Reihe von parallelen Stangen einer Baustahlmatte
ATE451981T1 (de) * 2006-11-21 2010-01-15 Awm Spa Biegemaschine zur herstellung von käfigen für betonbauten
AT512400B1 (de) * 2012-07-25 2013-08-15 Evg Entwicklung Verwert Ges Biegemaschine für Drahtgittermatten

Citations (2)

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Publication number Priority date Publication date Assignee Title
US3120257A (en) * 1960-04-23 1964-02-04 Baustahlgewebe Gmbh Device for bending steel mesh for reinforced concrete and the like
US3273371A (en) * 1963-12-23 1966-09-20 Permaduc Inc Fabricating table

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3120257A (en) * 1960-04-23 1964-02-04 Baustahlgewebe Gmbh Device for bending steel mesh for reinforced concrete and the like
US3273371A (en) * 1963-12-23 1966-09-20 Permaduc Inc Fabricating table

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515004A (en) * 1982-10-07 1985-05-07 Jenglo Engineering, Inc. Welded wire fabric bending apparatus and method
US8505258B2 (en) 2000-08-17 2013-08-13 Industrial Origami, Inc. Load-bearing three-dimensional structure
US8114524B2 (en) 2002-09-26 2012-02-14 Industrial Origami, Inc. Precision-folded, high strength, fatigue-resistant structures and sheet therefor
US8377566B2 (en) 2002-09-26 2013-02-19 Industrial Origami, Inc. Precision-folded, high strength, fatigue-resistant structures and sheet therefor
US7296455B2 (en) * 2004-09-10 2007-11-20 Industrial Origami, Inc. Tool system for bending sheet materials and method of using same
WO2006031553A3 (en) * 2004-09-10 2006-11-16 Ind Origami Llc Tool system for bending sheet materials and method of using same
US20060053857A1 (en) * 2004-09-10 2006-03-16 Durney Max W Tool system for bending sheet materials and method of using same
US20080048366A1 (en) * 2006-08-28 2008-02-28 Industrial Origami, Inc. Method and Apparatus For Imparting Compound Folds on Sheet Material
US8438893B2 (en) 2006-10-26 2013-05-14 Industrial Origami, Inc. Method of forming two-dimensional sheet material into three-dimensional structure
US8936164B2 (en) 2012-07-06 2015-01-20 Industrial Origami, Inc. Solar panel rack
US9166521B2 (en) 2012-07-06 2015-10-20 Industrial Origami, Inc. Solar panel rack
US9425731B2 (en) 2012-07-06 2016-08-23 Industrial Origami, Inc. Solar panel rack
CN110560614A (zh) * 2019-09-25 2019-12-13 千瑞机电科技(丹阳)有限公司 一种烟道矩形钢丝网笼折边成型设备
WO2021175632A1 (de) * 2020-03-03 2021-09-10 Progress Maschinen & Automation Ag Biegekopf für baustahlmatten

Also Published As

Publication number Publication date
CA964177A (en) 1975-03-11
DE2145809B2 (de) 1980-05-14
GB1383857A (en) 1974-02-12
DE2145809A1 (de) 1973-03-22
BE788348A (fr) 1973-01-02
FR2152967A1 (de) 1973-04-27
CH540077A (de) 1973-08-15
FR2152967B1 (de) 1974-12-06

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