EP2106864B1 - Manual tube bender - Google Patents

Manual tube bender Download PDF

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Publication number
EP2106864B1
EP2106864B1 EP09380070A EP09380070A EP2106864B1 EP 2106864 B1 EP2106864 B1 EP 2106864B1 EP 09380070 A EP09380070 A EP 09380070A EP 09380070 A EP09380070 A EP 09380070A EP 2106864 B1 EP2106864 B1 EP 2106864B1
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EP
European Patent Office
Prior art keywords
bender
handle
aforementioned
ratchet
tube bender
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.)
Active
Application number
EP09380070A
Other languages
German (de)
French (fr)
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EP2106864A3 (en
EP2106864A2 (en
Inventor
Jose Ignacio Picaza Ibarrondo
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rothenberger SA
Original Assignee
Rothenberger SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Rothenberger SA filed Critical Rothenberger SA
Publication of EP2106864A2 publication Critical patent/EP2106864A2/en
Publication of EP2106864A3 publication Critical patent/EP2106864A3/en
Application granted granted Critical
Publication of EP2106864B1 publication Critical patent/EP2106864B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
    • B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/04—Bending rods, profiles, or tubes over a movably-arranged forming menber
    • 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
    • B21D7/00—Bending rods, profiles, or tubes
    • B21D7/06—Bending rods, profiles, or tubes in press brakes or between rams and anvils or abutments; Pliers with forming dies
    • B21D7/063—Pliers with forming dies

Definitions

  • the object of this invention is a new manual tube bender.
  • the tube bender object of this invention is one of those structured by a main frame bearing corbouterolles (S), whose "main frame has in articulation (A 1 ) a lever (5), the assembly having the appearance general manual tool similar to that of pincers or pliers -see figure 1 .
  • this main frame has a head (11) having counterboot (S) and a handle (12) having splines (3) in which the bender (C) is arranged .
  • the counterbooters (S) and the bender (C) are replaceable by a quick engagement mechanism described below.
  • the head (11) and the handle (12) have means for mounting them in a fitted manner; these means being, in particular, sets of rods (13) in one of the head elements (11) or handle (12) - which fit snugly in the conjugate housings of the other head element (11). ) or handle (12) - -see figure 6 .
  • splines (3) linearly movable guided relative to the handle (12).
  • These grooves (3) have a first rack and pinion (31) and a second rack and pinion (32) on the two opposite faces and mount the bender (C) on its front end and on its end.
  • posterior having a spring (4) tending to fold the splines (3) to their initial position of rest, for this it clings to the ends (41), (42) corresponding to the main body (1) and to same grooves (3) -see figure 3 .
  • a unidirectional thrust trigger (6) is articulated (A 2 ) whose toothing (6a) engages / is triggered in the toothing-rack (31) splines (3) if it is actuated, respectively, by the lever (5) or by a balance spring (61) -see figure 3 .
  • the two traction springs (4), (7) are concealed by a cover (12a) which is mounted on the handle (12) using, for example, a screw (121) -see figure 3 . It is irrelevant and incidental to the effects of the invention, that the springs (4), (7) mount their corresponding end (41), (71) on the handle (12), as in the case of the spring (4) or in the cover (1 2a), as does the spring (7) -see figure 3 .
  • lever (5) is hinged (A 1 ) to the handle (12) or the cover (12a); in the embodiment shown in the figure 3 the lever (5) is hinged to the cover (12a).
  • a unidirectional retention trigger (2) whose toothing (2a) engages / is triggered in the second toothing-rack (32) of the grooves (3) being actuated respectively by a push spring (21) or by the worker himself -see figure 3 .
  • the curvatures (S 1 ) of the buttresses (5) and (Ci) of the bender (C) are fixed, conjugate and different for each diameter of tube to be bent.
  • a structuring is available, for the assembly / disassembly, it is enough to embouch the lock (P) in the grooves and to rotate it on 90 ° so that it is retained by the action of the spring (R).

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Portable Nailing Machines And Staplers (AREA)

Abstract

The machine has a main armature comprising a head (11) with a holding-up hammer and a grip (12) with a spline (3), where the head and the grip comprise sets of conjugated rods (13)/housings. The spline supports a bender (C), and is linearly moved with respect to the grip and the head. A tension spring (4) is attached to the grip and the spline for folding-up the spline towards an initial rest position. The bender and the holding-up hammer are replaced by corresponding rapid engaging mechanisms. The armature has a lever (5) in an articulation (A1).

Description

L'objet de cette invention est une nouvelle cintreuse de tubes manuelle.The object of this invention is a new manual tube bender.

Nous connaissons, dans la technique actuelle, des cintreuses de tubes de différents types et structurations, dont nous pouvons citer, par exemple, et entre autres, les dossiers EPO484155 ES-1051854 U et ES-1027314 U dernier du même demandeur).We know, in the current technique, tube benders of different types and structures, which we can cite, for example, and among others, records EPO484155 ES-1051854 U and ES-1027314 U last of the same applicant).

Même les cintreuses de tubes manuelles avec des mécanismes à cannelures sont connues: l'une d'elles est mentionnée, par exemple, dans le dossier ES-048567 U , ou dans le dossier DE 2850892 A .Even manual tube benders with flute mechanisms are known: one of them is mentioned, for example, in the file ES-048567 U , or in the folder DE 2850892 A .

Un problème non résolu des cintreuses de tubes connues est leur complexité structurale et leur difficulté pour leur manipulation par les ouvriers. Les cintreuses de tubes connues ont un fonctionnement électrique ou hydraulique, ou demandent l'utilisation des deux mains.An unresolved problem of known tube benders is their structural complexity and difficulty in handling them by the workers. The known tube benders have electrical or hydraulic operation, or require the use of both hands.

Ces problèmes sont résolus par la cintreuse de tubes objet de cette invention: selon la revendication 1 dont le fonctionnement est totalement mécanique et pour laquelle tant l'actionnement pour cintrer comme le déblocage pour libérer le tube requièrent l'utilisation d'une seule main (la même main), cette utilisation étant plus ergonomique que celle connue dans l'état de la technique.These problems are solved by the tube bender object of this invention: according to claim 1, the operation of which is completely mechanical and for which both the actuation for bending and unlocking to release the tube require the use of one hand ( the same hand), this use being more ergonomic than that known in the state of the art.

Pour mieux comprendre l'objet de la présente invention, une forme préférentielle de réalisation pratique, susceptible de changements accessoires ne dénaturant pas son fondement est représentée sur les plans.

  • La figure 1 est une vue générale en élévation de la cintreuse de tubes objet de l'invention.
  • La figure 2 est une vue frontale de la cintreuse de tubes de la figure 1.
  • La figure 3 est une section générale selon l'indication de la figure 2.
  • La figure 4 est une vue partielle en plan inférieur de la cintreuse de tubes de la figure 1.
  • La figure 5 est une section partielle, selon l'indication de la figure 4.
  • La figure 6 est une section générale, selon l'indication de la figure 3.
To better understand the object of the present invention, a preferred embodiment of practice, susceptible of incidental changes not denaturing its foundation is shown on the plans.
  • The figure 1 is a general elevational view of the tube bender object of the invention.
  • The figure 2 is a front view of the tube bender of the figure 1 .
  • The figure 3 is a general section according to the indication of the figure 2 .
  • The figure 4 is a partial bottom plan view of the tube bender of the figure 1 .
  • The figure 5 is a partial section, as indicated by figure 4 .
  • The figure 6 is a general section, according to the indication of the figure 3 .

Nous décrivons ci-dessous un exemple de réalisation pratique, non limitée, de la présente invention.Below is an example of a practical, non-limited, embodiment of the present invention.

La cintreuse de tubes objet de cette invention fait partie de celles structurées par une armature principale porteuse de contrebouterolles (S), dont "l'armature principale possède en articulation (A1) un levier (5), l'ensemble présentant l'aspect général d'un outil manuel semblable à celui de tenailles ou de pinces -voir figure 1.The tube bender object of this invention is one of those structured by a main frame bearing contrebouterolles (S), whose "main frame has in articulation (A 1 ) a lever (5), the assembly having the appearance general manual tool similar to that of pincers or pliers -see figure 1 .

Conformément à l'invention, et selon la réalisation représentée, cette armature principale dispose d'une tête (11) disposant de contrebouterolles (S) et un manche (12) disposant de cannelures (3) dans lesquelles le cintreur (C) est disposé.According to the invention, and according to the embodiment shown, this main frame has a head (11) having counterboot (S) and a handle (12) having splines (3) in which the bender (C) is arranged .

Les contrebouterolles (S) et le cintreur (C) sont remplaçables par un mécanisme d'enclenchement rapide décrit ci-dessous.The counterbooters (S) and the bender (C) are replaceable by a quick engagement mechanism described below.

La tête (11) et le manche (12) disposent de moyens pour les monter de manière ajustée; ces moyens étant, particulièrement, des jeux de tiges (13) dans l'un des éléments -tête (11) ou manche (12)- qui s'emboîtent de manière ajustée dans des logements conjugués de l'autre élément -tête (11) ou manche (12)- -voir figure 6.The head (11) and the handle (12) have means for mounting them in a fitted manner; these means being, in particular, sets of rods (13) in one of the head elements (11) or handle (12) - which fit snugly in the conjugate housings of the other head element (11). ) or handle (12) - -see figure 6 .

Conformément à l'invention, et selon la réalisation représentée, nous disposons de cannelures (3) pouvant être déplacées de manière linéaire guidées par rapport à ce manche (12). Ces cannelures (3) disposent de une première dentures-crémaillère (31) et une second denture-crémaillère, (32), sur les deux faces opposées, et monte le cintreur (C) sur son extrémité frontale et sur son extrémité postérieure disposant d'un ressort (4) tendant à replier les cannelures (3) vers leur position initiale de repos, pour cela, il s'accroche aux extrémités (41), (42) correspondantes, au corps principal (1) et aux cannelures mêmes (3) -voir figure 3.According to the invention, and according to the embodiment shown, we have splines (3) linearly movable guided relative to the handle (12). These grooves (3) have a first rack and pinion (31) and a second rack and pinion (32) on the two opposite faces and mount the bender (C) on its front end and on its end. posterior having a spring (4) tending to fold the splines (3) to their initial position of rest, for this it clings to the ends (41), (42) corresponding to the main body (1) and to same grooves (3) -see figure 3 .

Dans le manche mentionné (12) une gâchette unidirectionnelle de poussée (6) est articulée (A2) dont la denture (6a) s'enclenche/se déclenche dans la denture-crémaillère (31) des cannelures (3) s'il est actionné, respectivement, par le levier (5) ou par un ressort de balancier (61) -voir figure 3.In the handle mentioned (12) a unidirectional thrust trigger (6) is articulated (A 2 ) whose toothing (6a) engages / is triggered in the toothing-rack (31) splines (3) if it is actuated, respectively, by the lever (5) or by a balance spring (61) -see figure 3 .

Les deux ressorts de traction (4), (7), sont cachés par un couvercle (12a) qui est monté sur le manche (12) en utilisant, par exemple, une vis (121) -voir figure 3. Il est indifférent et accessoire aux effets de l'invention, que les ressorts (4), (7) montent leur extrémité correspondante (41), (71) sur le manche (12), comme dans le cas du ressort (4) ou dans le couvercle (1 2a), comme le fait le ressort (7) -voir figure 3.The two traction springs (4), (7) are concealed by a cover (12a) which is mounted on the handle (12) using, for example, a screw (121) -see figure 3 . It is irrelevant and incidental to the effects of the invention, that the springs (4), (7) mount their corresponding end (41), (71) on the handle (12), as in the case of the spring (4) or in the cover (1 2a), as does the spring (7) -see figure 3 .

Il est aussi indifférent et accessoire aux effets de l'invention, que le levier (5) soit articulé (A1) au manche (12) ou au couvercle (12a); dans la réalisation représentée dans la figure 3, le levier (5) est articulé au couvercle (12a).It is also indifferent and incidental to the effects of the invention, that the lever (5) is hinged (A 1 ) to the handle (12) or the cover (12a); in the embodiment shown in the figure 3 the lever (5) is hinged to the cover (12a).

Dans le manche mentionné (12) est aussi articulée (A3) une gâchette unidirectionnelle de rétention (2) dont la denture (2a) s'enclenche/se déclenche dans la second denture-crémaillère (32) des cannelures (3) en étant actionnée respectivement, par un ressort poussoir (21) ou par l'ouvrier même -voir figure 3.In the mentioned handle (12) is also articulated (A 3 ) a unidirectional retention trigger (2) whose toothing (2a) engages / is triggered in the second toothing-rack (32) of the grooves (3) being actuated respectively by a push spring (21) or by the worker himself -see figure 3 .

Les courbures (S1) des contrebouterolles (5) et (Ci) du cintreur (C) sont fixes, conjuguées et différentes pour chaque diamètre de tube à cintrer.The curvatures (S 1 ) of the buttresses (5) and (Ci) of the bender (C) are fixed, conjugate and different for each diameter of tube to be bent.

Les contrebouterolles (S) et le cintreur (C) sont facilement remplaçables, grâce au mécanisme d'enclenchement rapide qui, dans le cas de la réalisation représentée -voir figure 5- est constitué par

  • dans le cintreur (C) et les contrebouterolles (S) un boulon (T) avec un verrou (P) sur son extrémité et un ressort (R) coaxial;
  • dans la tête (11) un orifice passant (O1) avec des rainures (O2) conjuguées du verrou (P) et diamétralement opposées, qui s'étendent sur toute sa hauteur.
The counterbooters (S) and the bender (C) are easily replaceable, thanks to the quick engagement mechanism which, in the case of the embodiment shown -see figure 5 - is constituted by
  • in the bender (C) and the counterbooters (S) a bolt (T) with a latch (P) on its end and a coaxial spring (R);
  • in the head (11) a passing orifice (O 1 ) with grooves (O 2 ) conjugate latch (P) and diametrically opposed, which extend over its entire height.

Une structuration est disponible, pour le montage/démontage, il suffit d'emboucher le verrou (P) dans les rainures et de le faire pivoter sur 90° pour qu'il soit retenu par l'action du ressort (R).A structuring is available, for the assembly / disassembly, it is enough to embouch the lock (P) in the grooves and to rotate it on 90 ° so that it is retained by the action of the spring (R).

Claims (7)

  1. A manual tube bender, of the type structured in a main frame holding the dolly bars (S) and in the main frame of which is articulated (A1) a lever (5),
    a) said main frame consists of a head (11) that holds the dolly bars (S) and a handle (12) holding a ratchet (3) where the head (11) and the handle (12) dispose of means to be assembled closely fitted to each other, said means being sets of rods (13) / housings (14) conjugated;
    b) said tube bender disposing of at least one traction spring (4) which, coupling its ends (41), (42) to the handle (12) and to the ratchet (3), tends to return the ratchet (3) toward an initial resting position;
    c) the ratchet (3) holds the bender (C) and is displaced linearly with respect to the handle (12) and head (11); said tube bender being characterized because the ratchet (3) presents a first toothed-rack (31) and a second toothed rack (32) on two opposite sides;
    d) There is a unidirectional thrust trigger (6) which locks / unlocks in the first toothed-rack (31) of said ratchet (3) and is articulated in (A2) to the aforementioned lever (5);
    e) There is a unidirectional retention trigger (2) that locks / unlocks in the second toothed rack (32) of the aforementioned ratchet (3) and is articulated in (A3) to the aforementioned handle (12); and
    f) the bender (C) and the dolly bars (S) are both replaceable with quick-locking mechanisms.
  2. A manual tube bender, according to claim 1, characterized in that said handle (12) has a cover (12a) that hides the traction springs (4), (7) from view.
  3. A manual tube bender, according to claim 1, characterized in that the aforementioned trigger (2) has a thrust spring (21) that tends to turn it around its articulation shaft (A3) and to lock the trigger (2) in the toothed-rack (32) when there is no compressive force on it.
  4. A manual tube bender, according to claim 1, characterized in that the dolly bars (S) and bender (C) present curvatures (C1), (S1) that are fixed, conjugated and different for each diameter of the tubes to be bent.
  5. A manual tube bender, according to claim 1, characterized in that the aforementioned quick-locking mechanisms are each made up of:
    a) on the bender (C) and dolly bars (S) a bolt (T) with a pin (P) on its end and a coaxial spring (R);
    b) on the head (11) a pass-through orifice (O1) with conjugated grooves (O2) of the pin (P) and diametrically opposite each other, which extend along its entire height;
    thus, for the assembly/disassembly the pin (P) is simply put into the grooves and turned 90° to be retained by the spring action (R).
  6. A manual tube bender, according to claim 2, characterized in that the aforementioned lever (5) is articulated on (A1) the aforementioned cover (12a) of the handle (12).
  7. A manual tube bender, according to claim 2, characterized in that the aforementioned traction spring (7) couples one of its ends (71) to the aforementioned cover (12a) of the handle (12).
EP09380070A 2008-04-04 2009-04-02 Manual tube bender Active EP2106864B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200800945A ES2367489B1 (en) 2008-04-04 2008-04-04 MANUAL DRIVE CURVATUBES.

Publications (3)

Publication Number Publication Date
EP2106864A2 EP2106864A2 (en) 2009-10-07
EP2106864A3 EP2106864A3 (en) 2010-03-24
EP2106864B1 true EP2106864B1 (en) 2011-11-09

Family

ID=40874999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09380070A Active EP2106864B1 (en) 2008-04-04 2009-04-02 Manual tube bender

Country Status (5)

Country Link
EP (1) EP2106864B1 (en)
CN (1) CN101549374B (en)
AT (1) ATE532588T1 (en)
ES (2) ES2367489B1 (en)
TW (1) TWI378000B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9144835B2 (en) 2011-03-21 2015-09-29 Irwin Industrial Tool Company Tube and pipe benders and methods of bending same
CN102492787A (en) * 2011-12-13 2012-06-13 上海化工研究院 Manual punching shear type slicing device
CN103706687B (en) * 2013-12-31 2015-06-24 江阴机械制造有限公司 Bent angle drum wheel mechanism of pipe bending machine
CN107597921A (en) * 2017-10-23 2018-01-19 重庆奔隆机械有限公司 Bending machine shaft nested structure
MX2020005903A (en) * 2017-12-11 2020-08-20 Cml Int S P A Hydraulically operated rotary pipe bending machine.
US10441984B1 (en) 2019-01-14 2019-10-15 Todd Brochman Conduit bender
USD926003S1 (en) * 2020-05-15 2021-07-27 Brochman Innovations, Llc Tubing bender

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126187A (en) * 1966-08-12 1968-09-05 Leslie Arthur Le Breton Pipe bending devices
FR2100998B1 (en) * 1970-08-04 1973-04-27 Breton Leslie Le TUBE BENDING TOOL
US3822578A (en) * 1973-01-24 1974-07-09 Breton L Le Pipe bending devices
DE2850892A1 (en) * 1978-11-24 1980-05-29 Fritz Schumacher Maschinenfabr Pliers type tool for pipe bending - has sliding semicircular head forced between two rollers to shape hydraulic brake line
DD204045A1 (en) * 1982-02-23 1983-11-16 Juergen Focke DEVICE FOR FORMING PIPES, PREFERABLY OF COLORED METAL
DE3803128C3 (en) * 1988-02-03 2002-10-24 Foell Remswerk Pipe bending machine
CA2054557A1 (en) 1990-10-31 1992-05-01 Robert Alexander Dircks Tandem roller pipe bender
US6465700B1 (en) 1997-02-05 2002-10-15 Boulder Scientific Company Coupling reactions of 2-substituted, 7-haloindenes with aryl substituents to produce metallocene catalyst ligands
US5761950A (en) * 1997-03-10 1998-06-09 Chiu; Ching-Su Tube bender
WO1999038332A1 (en) 1998-01-27 1999-07-29 Siemens Aktiengesellschaft Method and device for converting image data blocks into image lines
ES1048567Y (en) * 2001-03-14 2001-12-16 Osa Ana Urquizo PERFECTED CARRACA CURVATUBES.

Also Published As

Publication number Publication date
ES2378316T3 (en) 2012-04-11
TW201006584A (en) 2010-02-16
ATE532588T1 (en) 2011-11-15
ES2367489B1 (en) 2012-09-07
CN101549374B (en) 2013-01-30
CN101549374A (en) 2009-10-07
EP2106864A3 (en) 2010-03-24
EP2106864A2 (en) 2009-10-07
ES2367489A1 (en) 2011-11-04
TWI378000B (en) 2012-12-01

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