EP1852195A2 - Method and Machine for Production of Three-Dimensional Stirrups - Google Patents
Method and Machine for Production of Three-Dimensional Stirrups Download PDFInfo
- Publication number
- EP1852195A2 EP1852195A2 EP07106878A EP07106878A EP1852195A2 EP 1852195 A2 EP1852195 A2 EP 1852195A2 EP 07106878 A EP07106878 A EP 07106878A EP 07106878 A EP07106878 A EP 07106878A EP 1852195 A2 EP1852195 A2 EP 1852195A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- stirrup
- production
- leg
- stirrups
- arm
- 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.)
- Granted
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005452 bending Methods 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 48
- 239000000463 material Substances 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims description 8
- 238000007493 shaping process Methods 0.000 claims description 3
- 230000000452 restraining effect Effects 0.000 claims description 2
- 239000000047 product Substances 0.000 description 11
- 239000004567 concrete Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004075 alteration Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Images
Classifications
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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
-
- 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
- B21D21/00—Combined processes according to methods covered by groups B21D1/00 - B21D19/00
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F27/00—Making wire network, i.e. wire nets
- B21F27/12—Making special types or portions of network by methods or means specially adapted therefor
- B21F27/20—Making special types or portions of network by methods or means specially adapted therefor of plaster-carrying network
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/01—Reinforcing elements of metal, e.g. with non-structural coatings
- E04C5/06—Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
Definitions
- the invention refers to a machine and method for production of three-dimensional stirrups 1 a from rods, wire, or other material of any cross-section.
- Such three-dimensional stirrups may be employed for joining construction elements of reinforced concrete that are either fabricated on-site at construction sites, or are prefabricated.
- US 2782832 A (SHAW ) 26.02.1957 discloses a machine for angularly bending the leg portions of U-shaped workpieces.
- Prior US 1512002 A (KARDONG ) 14.10.1924 discloses a machine for forming plural planar stirrups simultaneously.
- the first method (a) discussed above has a high cost of production since it requires the manual involvement of laborers, it is time-consuming, and productivity is low. Furthermore, the quality of the resulting three-dimensional stirrups 1 a is not always that required for their further use. Since the shape of the in-question product does not have absolute precision as to its geometric characteristics this creates difficulties in its placement in the metallic cases.
- the innovative machine and method that are here presented concern the automated production of three-dimensional stirrups 1a, 1b, 1c, 1d, 1e from rods, wire, or other suitable materials of any cross-section, wherein first a planar stirrup 9 is produced with parallel legs 4,5 by making two bends. Then the free leg 5 is pulled, at a suitable location 11 towards the opposite leg 4 which is held unmoved. Finally, a third dimension is created by bending simultaneously at suitable locations 12,13 the stirrup out of the plane. In this fashion the creation of the planar stirrup 9, which leads to the final three-dimensional stirrup 1a, may require only two bending operations.
- FIG. 1 depicts a first form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 2 depicts a second form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 3 depicts a third form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 4 depicts a fourth form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 5 depicts a fifth form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 6 helps depict in idealization the method of production and its kinematic requirements, according to the present invention and shows a planar stirrup.
- FIGS. 7-8 likewise help depict in idealization the method of production and its kinematic requirements, according to the present invention.
- FIGS. 9-10 depict idealized the method of production of the three-dimensional stirrups according to the state of the art.
- FIG. 11 depicts schematically one of the machines which effect the method of production of three-dimensional stirrups according to the present invention.
- the innovative method that is here presented concerns the automated production of three-dimensional stirrups 1a, 1b, 1c, 1d, 1e from rods, wire or other suitable materials of any cross-section.
- a planar stirrup 9 with parallel legs 4,5 by making two bends, or alternatively there may be received a prepared and precut planar stirrup 9.
- the free leg 5 is pulled at a suitable location 11 towards the opposite leg 4, which is held unmoved.
- This method effects the production of three-dimensional stirrups 1 a from rod, wire or other suitable material of any cross-section.
- Such three-dimensional stirrups 1a typically have the two legs 4,5 on which are found the two ends of the stirrup 1a, being on the same plane and converging at a particular angle, though some of the other sides, that are located on a different plane, may converge under a different angle or may be parallel.
- the present method is characterized in that there is produced first the planar stirrup 9 from suitable layout; afterwards, with a suitable mechanism the leg 5 having a free end is trapped at a suitable location 11 and is pulled towards the opposite leg 4, so that the two legs' 4,5 two sides converge under a suitable angle.
- the method according to the immediately aforegoing paragraph may be yet further characterized in that the two-dimensional stirrups 9 may be prepared and shaped in the suitable dimensions and then be supplied to suitable mechanisms 25, 22 so as to undergo the further processing for the shaping of the end product.
- the method according to the immediately preceding two paragraphs may be further characterized in that there can be received from the suitable layout more than one (i.e. plural) two-dimensional stirrups 9 simultaneously in more than one corresponding locations of receipt by suitable mechanisms so that they undergo further processing for the shaping of the final product.
- our method may be implemented by an innovative mechanism 25 which is disposed in stirrup machines with the following characteristics: they have an arrangement of an advancement mechanism 21 for the rod, wire or other suitable material, that may come from a spool or from straightened pieces; they have a bending head 19 that bends the material in one place, creating planar stirrups; they have a cutter 20 for cutting the material after the creation of the three-dimensional stirrup 1a from a second bending mechanism 22, which comprises a stationary arm 23 and a second arm 24 that can move cyclically around the stationary arm 23 thus bending the two legs 4,5 of the planar stirrup simultaneously.
- a second bending mechanism 22 which comprises a stationary arm 23 and a second arm 24 that can move cyclically around the stationary arm 23 thus bending the two legs 4,5 of the planar stirrup simultaneously.
- the mechanism 25 which comprises our invention is placed between the first bending mechanism 19 and the second bending mechanism 22 and comprises one arm 16 that can move in an alternating, reciprocating manner with the aid of a suitable mechanism 18 and at a suitable angle as to the legs 4,5 of the planar stirrup 9 trapping with the aid of a suitable hook 17 the free leg 5 which it pulls towards leg 4, traversing a suitable distance, holds it until the second bending head 22 bends the two legs 4,5 at suitable locations 12,13 creating the third dimension. Afterwards the cutting of the material of leg 4 at a suitable location is made by cutter 20.
- Such stirrup machines may include an arrangement of an advancement mechanism 21 for the rod, wire or other suitable material that may be supplied from a spool or from straightened pieces.
- they may include a first bending mechanism 19 that bends the material in one plane to generate planar stirrups 9.
- they may also include a cutter 20 for the cutting of the material after the generation of the three-dimensional stirrup 1a, 1b, 1c, 1d, 1e by a second bending mechanism 22.
- This second bending mechanism 22 comprises a fixed arm 23 and a second arm 24 that can move cyclically around the fixed arm 23 bending thus the two legs 4,5 of the planar stirrup simultaneously.
- stirrup machines may receive prepared and precut planar stirrups 9 trapping one free leg 4 with the aid of a grip.
- the arrangement includes a grip that can receive the planar stirrup restraining it via leg 4.
- mechanism 25 may be used also in stirrup machines that work prepared, precut planar stirrups 9 and have an arrangement including only the second bending head 22 that can create the third dimension. It will be readily understood from the aforegoing description that in this second case the first bending mechanism 19 is not necessary.
- the mechanism 25 is placed between the first bender 19 and the second bender 22, under the plane of the under-production product. It comprises an arm 16 that can move with the aid of suitable mechanism 18 in an alternating, reciprocating manner and at a suitable angle relative to legs 4,5 of the planar stirrup 9, trapping with the aid of a suitable hook 17 the free leg 5, 11, which it pulls towards the leg 4.
- the arm 16 traverses a suitable distance, holding it until the second bending head 22 bends the two legs 4,5 at the suitable locations 12,13 creating the third dimension.
- the mechanism 25 may be characterized in that it is placed above the plane of the subjected-to-generation product.
- the mechanism 25 may be located either under the plane of the under-production part or above it.
- the mechanism 25, may be characterized in that the free leg 5 of the planar stirrup 9 can be trapped with the aid of grip.
- the free leg 5 may be trapped also with the aid of a suitable grip in place of the hook 17.
- a mechanism 25 may be further characterized in that the maintenance, coordination, and control of all the functions of the process of production of the three-dimensional stirrup 1a is made by a suitable electronic computer, in which are entered the necessary product characteristics for the production of the three-dimensional product 1 a.
- the coordination and control of all the functions of the process of production of the three-dimensional stirrup 1a may be preferably effected by a suitable electronic computer, in which we enter all necessary product characteristics for the production of the product.
- the present invention is not limited in any manner to the described and in-the-drawing-portrayed implementation, but may be implemented in many forms and dimensions without abandoning the region of protection of the invention.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wire Processing (AREA)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
Description
- The invention refers to a machine and method for production of three-
dimensional stirrups 1 a from rods, wire, or other material of any cross-section. Such three-dimensional stirrups may be employed for joining construction elements of reinforced concrete that are either fabricated on-site at construction sites, or are prefabricated. - With reference to FIGS. 9-10, similar three-
dimensional stirrups 1 a are produced currently according to the following manners: - (a) Manually with the aid of hand-operated or semiautomatic tools.
US 919206 A (NEWLIN ) 20.04.1909 discloses a manually-operated rod bending tool applicable in bending rods used for reinforcing concrete.US 1425261 A (KARDONG ) 08.08.1922 also discloses a manually-operated rod bending tool applicable in bending rods used for reinforcing concrete. A more recent publication,US 6997030 A (WILLIAMS ) 14.02.2006 also discloses a manually-operated rod bending tool applicable in bending rods used for reinforcing concrete.US 3908425 A (WARE ) 30.09.1975 discloses a manually-operated power tool suitable for bending rods used for reinforcing concrete. - (b) With the aid of automated stirrup machines having a first bending mechanism, bending on only one plane, where is first produced a
planar stirrup 3a with convergingside legs planar stirrup 3a is manually positioned on another, usually hand-operated or semiautomatic suitable mechanism, where for the generation of the third dimension, bends are made of the two angles out-of-the plane atlocations - (c) With the help of automatic stirrup machines, which include an arrangement of two bending mechanisms, wherein a first bending mechanism generates the
planar stirrup 3a, with converginglegs locations US 235538A (KILMER )12/12/1880, discloses a bending mechanism for wires including an arrangement of two parallel arms, including one moving cyclically. - General relevance to the preceding categorizations (b), (c) may be found in several previous patent publications. For example, prior
US 5511402 A (KAUFFMAN ) 30.04.1996 , dated 1996-04-30, discloses a program-controlled automatic stirrup machine.EP 194478 A US 4161110 A (RITTER ET AL. ) 17.07.1979 discloses an automatic machine for producing concrete-reinforcing elements. PriorUS 3563283 A (TUFEKTSHIEV ) 16.02.1971 discloses an electrically programmed automatic apparatus for bending stirrups.US 2782832 A (SHAW ) 26.02.1957 discloses a machine for angularly bending the leg portions of U-shaped workpieces. PriorUS 1512002 A (KARDONG ) 14.10.1924 discloses a machine for forming plural planar stirrups simultaneously. - These existing machines, methods, and techniques present numerous problems which it would be desirable to alleviate. Again having reference to FIGS. 9-10, first, it may be noted that such three-
dimensional stirrups 1 a are typically placed in metallic cases with shape U or double-U, which are then covered with a suitably shaped cover of metal, synthetic materials, cardboard, or other suitable material. In this regard, it is required that theirlegs opposing sides dimensional stirrups 1 a be produced with these characteristics, it is necessary that at least five bendings must occur. First, four bendings on one plane, whereupon stirrups taking aplanar shape 3a are formed. Subsequently there are formed the two angles that establish the third dimension, which usually are bent simultaneously in the fifth bending with a suitable mechanism. - The first method (a) discussed above has a high cost of production since it requires the manual involvement of laborers, it is time-consuming, and productivity is low. Furthermore, the quality of the resulting three-
dimensional stirrups 1 a is not always that required for their further use. Since the shape of the in-question product does not have absolute precision as to its geometric characteristics this creates difficulties in its placement in the metallic cases. - In the second method (b) discussed above, there again must occur at least five bendings of the material.
- In the third method (c) discussed above, there again must also occur at least five bends of the material. Here the disadvantage is that the bends in the third dimension must fall precisely on the two
opposing locations planar shape 3a, something which is not feasible with precision, because of the torsions that the material has and the qualitative alterations that are present within the same spool from which it originates. The result is that the thus-produced product creates difficulty in its further application. - It may be noted from the aforegoing discussion that all of the methods according to the state of the art have a common characteristic that the
converging legs planar stirrup 3a by effecting at least four bending operations. The third dimension is generated subsequently. - The innovative machine and method that are here presented concern the automated production of three-
dimensional stirrups planar stirrup 9 is produced withparallel legs free leg 5 is pulled, at asuitable location 11 towards theopposite leg 4 which is held unmoved. Finally, a third dimension is created by bending simultaneously atsuitable locations planar stirrup 9, which leads to the final three-dimensional stirrup 1a, may require only two bending operations. - In relation to the enumerated disadvantages of the methods that existed, which we already referred to, and in contrast thereto, we set forth following several of our specific advantages:
- The time for production of the stirrups is shortened by far.
- As a result of the high quality of the product and the great precision of the shape the further placement of stirrups in the special cases is easy and in parallel time is economized here also.
- As a result of the requirement of two less bendings for the generation we have a fair amount of economization of energy during the production of each three-
dimensional stirrup 1a as something very significant if we contemplate that these products are produced at many thousands. - The cost of production is reduced to a great degree.
- The details of the method according to the present invention will be understood from the following description and from the attached drawings, where:
- FIG. 1 depicts a first form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 2 depicts a second form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 3 depicts a third form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 4 depicts a fourth form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 5 depicts a fifth form of three-dimensional stirrups that may be produced in accordance with the present invention.
- FIG. 6 helps depict in idealization the method of production and its kinematic requirements, according to the present invention and shows a planar stirrup.
- FIGS. 7-8 likewise help depict in idealization the method of production and its kinematic requirements, according to the present invention.
- FIGS. 9-10 depict idealized the method of production of the three-dimensional stirrups according to the state of the art.
- FIG. 11 depicts schematically one of the machines which effect the method of production of three-dimensional stirrups according to the present invention.
- With reference to FIGS 1-8 and 11, the innovative method that is here presented concerns the automated production of three-
dimensional stirrups planar stirrup 9 withparallel legs planar stirrup 9. Afterwards thefree leg 5 is pulled at asuitable location 11 towards theopposite leg 4, which is held unmoved. Finally, we bend simultaneously atsuitable locations planar stirrup 9 leading to the final three-dimensional stirrup 1a, only two bending operations. - This method effects the production of three-
dimensional stirrups 1 a from rod, wire or other suitable material of any cross-section. Such three-dimensional stirrups 1a typically have the twolegs stirrup 1a, being on the same plane and converging at a particular angle, though some of the other sides, that are located on a different plane, may converge under a different angle or may be parallel. The present method is characterized in that there is produced first theplanar stirrup 9 from suitable layout; afterwards, with a suitable mechanism theleg 5 having a free end is trapped at asuitable location 11 and is pulled towards theopposite leg 4, so that the two legs' 4,5 two sides converge under a suitable angle. Finally, with another suitable mechanism 22 there are created simultaneously at least twosides free legs opposite sides dimensional stirrup 1a, applying the method to corresponding more than one locations. - In one embodiment, the method according to the immediately aforegoing paragraph may be yet further characterized in that the two-
dimensional stirrups 9 may be prepared and shaped in the suitable dimensions and then be supplied to suitable mechanisms 25, 22 so as to undergo the further processing for the shaping of the end product. - As a further embodiment, the method according to the immediately preceding two paragraphs may be further characterized in that there can be received from the suitable layout more than one (i.e. plural) two-
dimensional stirrups 9 simultaneously in more than one corresponding locations of receipt by suitable mechanisms so that they undergo further processing for the shaping of the final product. - It must be explained also, with particular reference to FIGS. 2-5, that with this method it is possible to produce three-dimensional stirrups, which in the third dimension can have any form, such as for example non-perpendicular angles, uneven leg sides with oblique slanted
axial bend 1 b, withcurved configuration 1 c, withtriangular configuration 1 d, withpolygonal configuration 1e and others. - In one aspect, and with reference to FIG. 11 of the appended drawings, our method may be implemented by an innovative mechanism 25 which is disposed in stirrup machines with the following characteristics: they have an arrangement of an advancement mechanism 21 for the rod, wire or other suitable material, that may come from a spool or from straightened pieces; they have a bending
head 19 that bends the material in one place, creating planar stirrups; they have a cutter 20 for cutting the material after the creation of the three-dimensional stirrup 1a from a second bending mechanism 22, which comprises a stationary arm 23 and asecond arm 24 that can move cyclically around the stationary arm 23 thus bending the twolegs first bending mechanism 19 and the second bending mechanism 22 and comprises onearm 16 that can move in an alternating, reciprocating manner with the aid of a suitable mechanism 18 and at a suitable angle as to thelegs planar stirrup 9 trapping with the aid of a suitable hook 17 thefree leg 5 which it pulls towardsleg 4, traversing a suitable distance, holds it until the second bending head 22 bends the twolegs suitable locations leg 4 at a suitable location is made by cutter 20. - The machine of the present invention is further described with reference to FIG. 11 and FIGS. 1-8 of the appended drawings.
- A mechanism 25 for the production of three-
dimensional stirrups free legs first bending mechanism 19 that bends the material in one plane to generateplanar stirrups 9. Also in this case they may also include a cutter 20 for the cutting of the material after the generation of the three-dimensional stirrup - This second bending mechanism 22 comprises a fixed arm 23 and a
second arm 24 that can move cyclically around the fixed arm 23 bending thus the twolegs - Alternatively, such stirrup machines may receive prepared and precut
planar stirrups 9 trapping onefree leg 4 with the aid of a grip. In this case, the arrangement includes a grip that can receive the planar stirrup restraining it vialeg 4. Thus mechanism 25 may be used also in stirrup machines that work prepared, precutplanar stirrups 9 and have an arrangement including only the second bending head 22 that can create the third dimension. It will be readily understood from the aforegoing description that in this second case thefirst bending mechanism 19 is not necessary. - Assuming the first case, above, for illustration, the mechanism 25 is placed between the
first bender 19 and the second bender 22, under the plane of the under-production product. It comprises anarm 16 that can move with the aid of suitable mechanism 18 in an alternating, reciprocating manner and at a suitable angle relative tolegs planar stirrup 9, trapping with the aid of a suitable hook 17 thefree leg leg 4. Thearm 16 traverses a suitable distance, holding it until the second bending head 22 bends the twolegs suitable locations - As a further alternative, the mechanism 25 may be characterized in that it is placed above the plane of the subjected-to-generation product. Thus it will be understood that the mechanism 25 may be located either under the plane of the under-production part or above it.
- As a further alternative the mechanism 25, according to the aforegoing description may be characterized in that the
free leg 5 of theplanar stirrup 9 can be trapped with the aid of grip. Thus it will be understood that thefree leg 5 may be trapped also with the aid of a suitable grip in place of the hook 17. - Finally, in a further embodiment, a mechanism 25 according to the aforegoing description, may be further characterized in that the maintenance, coordination, and control of all the functions of the process of production of the three-
dimensional stirrup 1a is made by a suitable electronic computer, in which are entered the necessary product characteristics for the production of the three-dimensional product 1 a. Thus, the coordination and control of all the functions of the process of production of the three-dimensional stirrup 1a may be preferably effected by a suitable electronic computer, in which we enter all necessary product characteristics for the production of the product. - In the implementation of the invention the materials that are used as well as the dimensions of the individual elements can be in accordance with the requirements of the particular construction.
- The present invention is not limited in any manner to the described and in-the-drawing-portrayed implementation, but may be implemented in many forms and dimensions without abandoning the region of protection of the invention.
Claims (10)
- A machine for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) comprising either a bending mechanism (19) configured to bend material in one plane to create a planar stirrup (9), or a grip configured to restrain one leg (4) of a prepared precut planar stirrup (9); and,
further comprising a second bending mechanism (22) having an arrangement of two parallel arms (23,24), said machine characterized by:a mechanism (25) disposed to pull a free leg (5) of the stirrup towards the opposite stirrup leg (4),said mechanism (25) including an arm (16) configured to reciprocate with the aid of a suitable aiding mechanism (18) and at a suitable angle relative to legs (4, 5) of the stirrup (9). - A machine for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in Claim 1, further characterized in that: said arm (16) is disposed under the plane of the under-production stirrup (9).
- A machine for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in Claim 1, further characterized in that: said arm (16) is disposed above the plane of the under-production stirrup (9).
- A machine for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in any of Claims 1, 2, or 3 above, further characterized by:a hook (17) or a grip, disposed on said arm (16) for trapping free stirrup leg (5) so that said arm (16) may pull the free stirrup leg (5) toward the opposite stirrup leg (4).
- A machine for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in any of Claims 1, 2, 3, or 4 above, further characterized by:a suitable electronic computer configured to control all of the functions of production of the three-dimensional stirrups (1a, 1b, 1c, 1d, 1e).
- A process for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) comprising either the step of forming a planar stirrup (9) with a first bender (19), or the step of restraining a prepared precut planar stirrup (9) via a first leg (4) by receiving it in a grip; and, further comprising the step of providing a second bending mechanism (22) to bend the two legs (4,5) of the planar stirrup (9) simultaneously; characterized by the steps of:reciprocating an arm (16) of a mechanism (25) with a suitable aiding mechanism (18) and at a suitable angle relative to the legs (4,5) of the stirrup (9), andpulling a free leg (5) of the stirrup (9) towards the first leg (4) with said mechanism (25).
- A process for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in Claim 6, further characterized by the step of:either disposing said arm (16) under the plane of an under-production stirrup (9), or disposing said arm (16) above the plane of an under-production stirrup (9).
- A process for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in any of Claims 6 or 7, further characterized by the step of:trapping the free stirrup leg (5) with a hook (17) or with a grip disposed on said arm (16).
- A process for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in any of Claims 6, 7, or 8, further characterized by the step of:receiving plural two-dimensional stirrups (9) simultaneously in respective plural locations of receipt by respective suitable mechanisms (25) so that said plural two-dimensional stirrups (9) undergo further processing for the shaping of the final products.
- A process for production of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) as claimed in Claim 6, further characterized by the step of:producing simultaneously a plurality of three-dimensional stirrups (1a, 1b, 1c, 1d, 1e) by applying the process of production to a corresponding plurality of locations.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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PL07106878T PL1852195T3 (en) | 2006-05-04 | 2007-04-24 | Method and Machine for Production of Three-Dimensional Stirrups |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GR20060100262A GR1005871B (en) | 2006-05-04 | 2006-05-04 | Method and mechanism for producing three-dimensional clips. |
Publications (3)
Publication Number | Publication Date |
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EP1852195A2 true EP1852195A2 (en) | 2007-11-07 |
EP1852195A3 EP1852195A3 (en) | 2008-02-27 |
EP1852195B1 EP1852195B1 (en) | 2010-08-18 |
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EP07106878A Active EP1852195B1 (en) | 2006-05-04 | 2007-04-24 | Method and Machine for Production of Three-Dimensional Stirrups |
Country Status (7)
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US (1) | US20070256466A1 (en) |
EP (1) | EP1852195B1 (en) |
DE (1) | DE602007008499D1 (en) |
DK (1) | DK1852195T3 (en) |
ES (1) | ES2352995T3 (en) |
GR (1) | GR1005871B (en) |
PL (1) | PL1852195T3 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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WO2021068044A1 (en) * | 2019-10-10 | 2021-04-15 | Kirov Valentin Todorov | Automatic machine and method for producing reinforcement blanks |
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US8631674B2 (en) * | 2008-12-17 | 2014-01-21 | Aim, Inc. | Devices, systems and methods for automated wire bending |
IT1396456B1 (en) * | 2009-11-24 | 2012-11-23 | Piegatrici Macch Elettr | EQUIPMENT FOR BENDING OBLUNG METAL PRODUCTS, SUCH AS BARS, ROUNDS, OR METAL WIRES, AND RELATIVE BENDING PROCEDURE |
ITUD20110143A1 (en) * | 2011-09-13 | 2013-03-14 | Piegatrici Macch Elettr | CORRECTION DEVICE OF THE SHAPE OF A BENDED METALLIC BAR AND RELATIVE PROCEDURE FOR CORRECTION OF THE SHAPE |
ITUD20130131A1 (en) * | 2013-10-14 | 2015-04-15 | A C M Srl Automatismi Costruzioni Meccaniche | APPARATUS FOR BENDING OBLUNG METAL PRODUCTS, SUCH AS BARS, ROUNDS OR METAL WIRES, AND RELATIVE BENDING PROCEDURE |
CN108568484B (en) * | 2018-04-23 | 2020-09-15 | 林向亮 | Automatic bending method of stirrup |
DE102018221152A1 (en) * | 2018-12-06 | 2020-06-10 | Otto Bihler Handels-Beteiligungs-Gmbh | MACHINE FOR PRODUCING WIRE ELEMENTS |
TWI751039B (en) * | 2021-02-24 | 2021-12-21 | 潤弘精密工程事業股份有限公司 | Apparatus and method for manufacturing continuous stirrup |
CN114951514A (en) * | 2021-02-24 | 2022-08-30 | 润弘精密工程事业股份有限公司 | Continuous stirrup manufacturing equipment and method |
CN115229080A (en) * | 2022-07-04 | 2022-10-25 | 北京机械工业自动化研究所有限公司 | A kind of metal wire automatic bending machine and automatic bending method thereof |
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US1425261A (en) | 1920-06-25 | 1922-08-08 | Kardong Theodore | Bar bender |
US1512002A (en) | 1922-07-11 | 1924-10-14 | Kardong Theodore | Stirrup-bending machine |
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US3563283A (en) | 1967-07-05 | 1971-02-16 | Mash Z Mir | Automatic machine for making stirrups and structural reinforcement |
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EP0194478A2 (en) | 1985-03-08 | 1986-09-17 | M.E.P. Macchine Elettroniche Piegatrici S.p.A. | Device for straightening rods or wire without relative rotation of succeeding elements of material about the longitudinal axis |
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US5497643A (en) * | 1994-02-16 | 1996-03-12 | Ars Corporation | Remote bending apparatus |
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2006
- 2006-05-04 GR GR20060100262A patent/GR1005871B/en active IP Right Grant
-
2007
- 2007-04-24 EP EP07106878A patent/EP1852195B1/en active Active
- 2007-04-24 DE DE602007008499T patent/DE602007008499D1/en active Active
- 2007-04-24 DK DK07106878.7T patent/DK1852195T3/en active
- 2007-04-24 PL PL07106878T patent/PL1852195T3/en unknown
- 2007-04-24 ES ES07106878T patent/ES2352995T3/en active Active
- 2007-04-25 US US11/740,125 patent/US20070256466A1/en not_active Abandoned
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US235538A (en) | 1880-12-14 | Wire-bending machine | ||
US919206A (en) | 1908-01-07 | 1909-04-20 | James C Newlin | Rod-bending tool. |
US1425261A (en) | 1920-06-25 | 1922-08-08 | Kardong Theodore | Bar bender |
US1512002A (en) | 1922-07-11 | 1924-10-14 | Kardong Theodore | Stirrup-bending machine |
US2782832A (en) | 1955-04-26 | 1957-02-26 | Pedrick Tool And Machine Co | Bending machines |
US3563283A (en) | 1967-07-05 | 1971-02-16 | Mash Z Mir | Automatic machine for making stirrups and structural reinforcement |
US3908425A (en) | 1974-01-04 | 1975-09-30 | Donald G Ware | Rod bending apparatus and method |
US4161110A (en) | 1977-04-28 | 1979-07-17 | EVG Entwicklungs- und Verwertungs-Gesellschaft mbH. | Automatic control device for a bending machine |
EP0194478A2 (en) | 1985-03-08 | 1986-09-17 | M.E.P. Macchine Elettroniche Piegatrici S.p.A. | Device for straightening rods or wire without relative rotation of succeeding elements of material about the longitudinal axis |
FR2657547A1 (en) | 1990-01-29 | 1991-08-02 | Mure Ets | Device for the manufacture of metal workpieces in the form of a stirrup (portal frame) which possesses a double curvature |
DE4117955A1 (en) | 1991-05-31 | 1992-12-03 | Heribert Hiendl | Bending reinforcing steel into stirrups - using wire straightening unit with one group of driven rollers one group of movable rollers |
US5511402A (en) | 1994-12-16 | 1996-04-30 | Kauffman; Kenneth A. | Optimizing controller |
US6997030B1 (en) | 2005-01-14 | 2006-02-14 | Jason Brian Williams | Rebar bending tool |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2021068044A1 (en) * | 2019-10-10 | 2021-04-15 | Kirov Valentin Todorov | Automatic machine and method for producing reinforcement blanks |
US11712728B2 (en) | 2019-10-10 | 2023-08-01 | Valentin Todorov Kirov | Automatic machine and method for producing reinforcement blanks |
Also Published As
Publication number | Publication date |
---|---|
DE602007008499D1 (en) | 2010-09-30 |
EP1852195A3 (en) | 2008-02-27 |
EP1852195B1 (en) | 2010-08-18 |
GR20060100262A (en) | 2008-01-16 |
ES2352995T3 (en) | 2011-02-24 |
US20070256466A1 (en) | 2007-11-08 |
DK1852195T3 (en) | 2010-10-25 |
GR1005871B (en) | 2008-04-15 |
PL1852195T3 (en) | 2011-02-28 |
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