EP0060498B1 - Vorrichtung zum Verbinden von zwei stumpf gestossenen Bewehrungsstäben mittels einer Muffe - Google Patents

Vorrichtung zum Verbinden von zwei stumpf gestossenen Bewehrungsstäben mittels einer Muffe Download PDF

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Publication number
EP0060498B1
EP0060498B1 EP82101886A EP82101886A EP0060498B1 EP 0060498 B1 EP0060498 B1 EP 0060498B1 EP 82101886 A EP82101886 A EP 82101886A EP 82101886 A EP82101886 A EP 82101886A EP 0060498 B1 EP0060498 B1 EP 0060498B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
forming die
sleeve
base plate
parts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP82101886A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0060498A3 (en
EP0060498A2 (de
Inventor
Alto Mannhart
Georg Rieger
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.)
Walter Bau AG
Original Assignee
Dyckerhoff and Widmann AG
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 Dyckerhoff and Widmann AG filed Critical Dyckerhoff and Widmann AG
Priority to AT82101886T priority Critical patent/ATE16153T1/de
Publication of EP0060498A2 publication Critical patent/EP0060498A2/de
Publication of EP0060498A3 publication Critical patent/EP0060498A3/de
Application granted granted Critical
Publication of EP0060498B1 publication Critical patent/EP0060498B1/de
Expired legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
    • E04C5/162—Connectors or means for connecting parts for reinforcements
    • E04C5/163—Connectors or means for connecting parts for reinforcements the reinforcements running in one single direction
    • E04C5/165—Coaxial connection by means of sleeves
    • 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
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49908—Joining by deforming
    • Y10T29/49925—Inward deformation of aperture or hollow body wall
    • Y10T29/49934—Inward deformation of aperture or hollow body wall by axially applying force
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/5367—Coupling to conduit
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/5383—Puller or pusher means, contained force multiplying operator having fluid operator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53996—Means to assemble or disassemble by deforming

Definitions

  • the invention relates to a device for connecting two butt-jointed reinforcing bars provided with surface profiles by means of a sleeve pressed on by means of a drawing nozzle, which comprises a fixed device part with an abutment for supporting the sleeve and a device part which can be moved relative to the fixed device part parallel to the longitudinal direction of the reinforcing bars
  • Has holder for receiving the drawing nozzle with several cylinder-piston units are arranged between the two parts of the device for applying a central tensile force to the drawing nozzle and both the abutment and the movable holder for receiving the drawing nozzle are each provided with a slot extending from the end face whose width corresponds at least to the diameter of the assigned reinforcing bar.
  • So-called press joint joints are known to butt butt ends at the ends.
  • a sleeve is pushed over the ends of the bars to be connected, which is deformed by the application of external forces acting radially to the axis of the reinforcing bars so that their inner surface comes into direct contact with the outer surface of the reinforcing bars.
  • the sleeve is deformed by applying radial pressure by means of its drawing nozzle.
  • the known device can therefore only be used if the distance to adjacent reinforcement bars is very large.
  • Another disadvantage of the known device is that the drawing nozzle cannot act as far as the sleeve end adjacent to the abutment, so that a non-deformed sleeve section remains.
  • the invention is therefore based on the object to provide a device of the type mentioned, which makes it possible to carry out press joints even when the reinforcing bars to be connected are arranged at close distances from one another and the sleeve continuously from one side to its full Length together.
  • this object is achieved in that one or more cylinder-piston unit (s) acting in the pulling direction of the drawing nozzle is (are) eccentric to the drawing nozzle, that on the side opposite the drawing nozzle the latter cylinder-piston Unit (s) at least one further cylinder-piston unit is arranged with a counter-rotating cylinder, which can be acted upon in the opposite direction with pressure medium, that the abutment for supporting the sleeve is designed as a bracket and the holder for the drawing nozzle as a cantilever part and that the bracket has a two-part support sleeve which is arranged between the bracket and the adjacent end face of the sleeve and the dimensions of which are selected such that the drawing nozzle can be moved up to the end of the sleeve located in this area.
  • the two-part support sleeve expediently consists of two shell-shaped parts surrounding the reinforcing bar, each of which has a flange-like widening at the upper end.
  • the two parts of the support sleeve with the flange-like widenings can be pivotally connected to the console about axes running parallel to the axis of the drawing nozzle, wherein springs can be provided in order to hold the two parts of the support sleeve in the closed position.
  • a base plate is expediently provided as a holder for receiving the drawing nozzle on the movable device part and the drawing nozzle is inserted into a recess in this base plate that widens the longitudinal slot.
  • the drawing nozzle advantageously consists of at least two ring-shaped parts which complement one another to form a closed ring cross-section, preferably of two parts of different base length, of which the shorter, inner part is firm but detachable, e.g. B. connected by screws to the base plate and the longer outer part can be inserted loosely into the recess in the base plate.
  • the outer part expediently has a shoulder on the underside with which it is supported against corresponding abutments at the front ends of the base plate.
  • the cylinder spaces of the cylinder-piston units can be provided in a uniform cylinder housing forming the upper machine part. But you can also each put on a base plate and connected to this and an upper cover plate, for. B. screwed.
  • a stiffening plate is expediently arranged in the plane of action of the resultant force, which is firmly connected to both the base plate and the cover plate, for. B. welded or screwed.
  • the device 1 as shown in FIGS. 1 to 4, essentially consists of an upper device part 2 and a lower device part 3, which are connected to one another by cylinder-piston units and can be moved relative to one another by means of these.
  • the upper device part 2 which is fixed during operation, comprises a one-piece cylinder housing 4, in which a cylinder space 5 for a pull cylinder 6 and a cylinder space 7 for a counter-rotating cylinder 8 are arranged through bores.
  • a piston 9 with a piston rod 10 can be moved in the cylinder chamber 5;
  • a piston rod 11 runs in the cylinder space 7 and is designed such that the part engaging in the cylinder space 7 acts as a piston.
  • a fork-shaped bracket 12 is formed on the cylinder housing 4 (cf. also FIG. 2), with which the device 1 can enclose one of the reinforcement bars 13, 14 to be connected, into the spaces between - indicated by dashed lines - adjacent reinforcement bars.
  • a sleeve 15 is pushed over the reinforcing bars 13, 14 in the joint area, which is to be brought into firm contact with the reinforcing bars 13, 14 provided with surface profiles by means of a drawing nozzle 35 by radial deformation.
  • a support sleeve 16 is operatively connected to the console 12.
  • the support sleeve 16 comprises a slender lower part 17, with which it is supported at the upper end of the sleeve 15, and a flange-like widening 18, with which it is fixed to the bracket 12 in a non-positive and positive manner.
  • the entire support sleeve 16 in turn consists of two shell-shaped parts 17 ', 17 ", each with a flange-like widening 18', 18" (Fig. 5), which are pivotally attached to the bracket 12 about the axes of bolts 19 in the direction of arrows 20 .
  • the pivoting movement takes place against the action of flat springs 21, which are fixed laterally on the outside of the bracket 12 by means of pressure pieces 22 and screws 23.
  • the flange-like widenings 18 'and 18 "of the support sleeve 16 have bevels 24 on the end face. These bevels 24 serve as sliding surfaces when the device 1 with the bracket 12 is pushed above a sleeve 15 over a reinforcing bar 13, the two shell-shaped parts of the The support sleeve 16 opens and closes the rod 13 between them again, and in the closed position the two parts of the support sleeve 16 can be locked by adjusting bolts 15 (FIG. 6) which are guided in bores 26 in the bracket 12 and in bores 27 penetrate into the flange-like widenings 18 'or 18 ". A plate 28 is screwed onto the underside of the console 12 as a wearing part.
  • Fig. 2a only a cross-section of a second embodiment of the device according to Fig. 1 is shown, in which the fixed device part 2a has two pull cylinders 6a and 6b instead of a pull cylinder, which are arranged side by side and symmetrically to the longitudinal axis of the device.
  • the two pull cylinders 6a and 6b correspond to cylinder spaces 5a and 5b; the counter-running cylinder 8a has a cylinder space 7a, as in the example in FIG. 2.
  • the lower device part 3 consists of a base plate 29 with blind bores 30, into which the piston rods 10 and 11 of the pull cylinder 6 or counter-cylinder 8 are inserted and fastened by means of end screws 31.
  • the base plate 29 is widened in its region 32 forming a cantilever part (FIG. 3).
  • the front end 33 is fork-shaped through a longitudinal slot 34 and serves to hold the drawing nozzle 35.
  • the drawing nozzle 35 consists of two annular parts, namely a shorter, inner part 36a and a longer, outer part 36b, which are inserted into a recess 66 in the base plate 29.
  • the through the inner, attached to the base plate 29, for. B. screwed part 36a to be closed opening in the outer part 36b must be so large that the device can be pushed from the side onto the reinforcing bars to be connected.
  • the outer part 36b is then inserted into the recess 66 (FIG. 3a).
  • the drawing nozzle can also consist of two halves 37a, 37b, both of which are removable and can each be inserted when the device is attached (FIG. 3b).
  • FIGS. 9 and 10 A further exemplary embodiment for the design of the base plate is shown in FIGS. 9 and 10, of which FIG. 9 shows a longitudinal section through such a base plate and FIG. 10 shows a plan view represent.
  • the base plate 29 ' also has a longitudinal slot 34' extending from its front end 33 'with a recess 66 into which the drawing nozzle 35 "is inserted.
  • the drawing nozzle 35" has the shape of a circular ring and consists of a shorter inner part 36a' , the Z. B. is fixed by a screw to the base plate 29 ', and from a correspondingly longer outer part 36b', which in turn is only loosely inserted into the recess 66.
  • the longer part 36b' of the drawing nozzle has a shoulder 64 on its underside, which is in the in the inserted state against a corresponding shoulder 65 at the front end 33 'of the base plate 29' (FIG. 9), which ensures that the radial forces occurring in the drawing nozzle in the area of these shoulders 64 and 65 only act as normal forces on the base plate 29 ' are released, which act vertically on the shoulders so that the two arms of the drawing nozzle 29 'are not spread apart, but are only stressed in the longitudinal direction.
  • the device 1 is brought into position after aligning the reinforcing bars 13 and 14 and attaching the socket 15.
  • a handle 38 (FIGS. 1 and 4).
  • the device is positioned so that the console 12 is above the sleeve 15 in such a position that the two shell-shaped parts 17 ', 18' and 17 ", 18" of the support sleeve 16 enclose the sleeve 15 and therefore cannot close .
  • the device is held in this position in that the plate 28 (FIG. 6) lies on top of the sleeve 15.
  • the sleeve 15 can be held in the intended position, for example, by looping wire wire around the reinforcing bar 14 immediately below the sleeve.
  • a pressure medium line 39 now supplies pressure medium in the direction of the arrow 40 (FIG. 1) which, via the cylinder space 7, the pressure surface 41 of the piston rod 11 of the counter-rotating cylinder 8 and, by introduction into the lower part of the cylinder space 5, the piston 9 of the pull cylinder 6 from acted on below. In this way, in addition to the tensile force exerted on the pull cylinder 6, a pressure force is exerted on the counter-rotating cylinder 8.
  • the ratio of the pressure surface of the pull cylinder 6 to that of the counter-cylinder 8 must be exactly as large as the ratio of the distance b of the axis of the pull cylinder 6 from the axis of the reinforcing bars 13, 14 or the drawing nozzle 35 to the distance a of the axis of the counter-cylinder 8 to the axis of the reinforcing bars 13, 14.
  • the bending moment triggered by the counter-rotating cylinder 8 compensates for the bending moment which arises when the pulling cylinder acts, so that the base plate 29 with the drawing nozzle 35 is slowly and evenly pulled over the sleeve 15, which is plastically deformed.
  • the upper device part 2b here comprises a pull cylinder 42 and a counter-rotating cylinder 43 as individual units which are connected by a base plate 44. At the upper ends, the cylinders 42 and 43 are combined and connected by a cover plate 45. The connections are each made by screws 46.
  • a stiffening plate 47 which is connected on the one hand to the cylinder 42 via a lug 48 and to the counter-rotating cylinder 43 via lateral wings 49. Otherwise, in particular also with regard to the lower part of the device, this device is designed in the same way as that which was described in connection with FIGS. 1 to 4.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Reinforcement Elements For Buildings (AREA)
  • Wire Processing (AREA)
  • Forging (AREA)
  • Automatic Assembly (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
  • Coating Apparatus (AREA)
EP82101886A 1981-03-13 1982-03-10 Vorrichtung zum Verbinden von zwei stumpf gestossenen Bewehrungsstäben mittels einer Muffe Expired EP0060498B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101886T ATE16153T1 (de) 1981-03-13 1982-03-10 Vorrichtung zum verbinden von zwei stumpf gestossenen bewehrungsstaeben mittels einer muffe.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3109687 1981-03-13
DE3109687A DE3109687C2 (de) 1981-03-13 1981-03-13 Gerät zum Verbinden von zwei stumpf gestoßenen Bewehrungsstäben mittels einer Muffe

Publications (3)

Publication Number Publication Date
EP0060498A2 EP0060498A2 (de) 1982-09-22
EP0060498A3 EP0060498A3 (en) 1983-06-22
EP0060498B1 true EP0060498B1 (de) 1985-10-23

Family

ID=6127163

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101886A Expired EP0060498B1 (de) 1981-03-13 1982-03-10 Vorrichtung zum Verbinden von zwei stumpf gestossenen Bewehrungsstäben mittels einer Muffe

Country Status (7)

Country Link
US (1) US4559691A (ja)
EP (1) EP0060498B1 (ja)
JP (1) JPS57160526A (ja)
AT (1) ATE16153T1 (ja)
CA (1) CA1186139A (ja)
DE (1) DE3109687C2 (ja)
ES (1) ES8303595A1 (ja)

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JPS57126192A (en) * 1981-01-29 1982-08-05 Sumitomo Electric Ind Ltd Semiconductor device and manufacture thereof
DE3233741C2 (de) * 1981-03-13 1985-06-05 Dyckerhoff & Widmann AG, 8000 München Gerät zum Verbinden von zwei stumpf gestoßenen Bewehrungsstäben mittels einer Muffe
DE3232297C2 (de) * 1982-08-31 1985-05-09 Süddeutsche Kühlerfabrik Julius Fr. Behr GmbH & Co KG, 7000 Stuttgart Verfahren zum Verbinden von ineinandergesteckten rohrförmigen Teilen eines Wärmetauschers und Werkzeug zur Durchführung des Verfahrens
US4649732A (en) * 1985-08-12 1987-03-17 Deutsch Fastener Corp. Fastener installation tool
DE3722062A1 (de) * 1987-07-03 1989-01-12 Dyckerhoff & Widmann Ag Verfahren zum befestigen einer metallischen huelse an einer litze aus stahldraht im wege des fliesspressens
DE4018042C2 (de) * 1990-06-06 1998-08-20 Dyckerhoff & Widmann Ag Vorrichtung zum Verbinden von zwei stumpf gestoßenen Bewehrungsstäben mittels einer Muffe
EP0466645A1 (de) * 1990-07-13 1992-01-15 Bieri Hydraulik Ag Spannpresse
CA2127119C (en) * 1992-01-31 1999-05-04 Arthur J. Hyatt Swaging tool for axially swaged fittings
FR2711385B1 (fr) * 1993-10-20 1995-12-15 Dextra Europe Sa Liaison mécanique de ronds à béton, dispositif pour la mise en place de cette liaison mécanique et procédé de fixation de liaison mécanique de ronds à béton.
DE4407289C2 (de) * 1994-03-04 1996-10-17 Dyckerhoff & Widmann Ag Verfahren zum Verbinden von zwei stumpf zu stoßenden Bewehrungsstäben sowie Vorrichtung zum Durchführen des Verfahrens
US5592726A (en) * 1995-01-06 1997-01-14 The Deutsch Company Axial swage tool having a stabilizing pin
DE69607843T2 (de) * 1995-05-26 2000-08-17 Sierracin Corp Austauschbares und sicheres quetschwerkzeug
US5694670A (en) * 1995-05-26 1997-12-09 Hosseinian; Amir P. Secure swaging tool
DE69704108T2 (de) * 1997-04-25 2001-09-20 Dextra Holding Luxemburg Luxem Maschine und Verfahren zum Quetschen von einer Müffe an einem Betonstahl
US5934137A (en) * 1998-05-08 1999-08-10 Capewell Components Company Compression assembly tool
US6112404A (en) * 1998-07-07 2000-09-05 Capewell Components Company, Llc Radial taper tool for compressing electrical connectors
US6820326B1 (en) 2002-10-05 2004-11-23 Capewell Components Company, Llc Compression assembly tool with multiple split bases
US7210327B1 (en) 2004-12-08 2007-05-01 Capewell Components Company, Llc Reduced actuation force compression assembly tool
US10619342B2 (en) * 2017-02-15 2020-04-14 Tindall Corporation Methods and apparatuses for constructing a concrete structure
US11951652B2 (en) 2020-01-21 2024-04-09 Tindall Corporation Grout vacuum systems and methods

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Also Published As

Publication number Publication date
JPS57160526A (en) 1982-10-02
ES510373A0 (es) 1983-02-01
JPS6137013B2 (ja) 1986-08-21
ATE16153T1 (de) 1985-11-15
EP0060498A3 (en) 1983-06-22
EP0060498A2 (de) 1982-09-22
DE3109687A1 (de) 1982-09-23
CA1186139A (en) 1985-04-30
DE3109687C2 (de) 1985-06-27
US4559691A (en) 1985-12-24
ES8303595A1 (es) 1983-02-01

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