EP0752296B1 - Setzgerät für einen Spreizanker - Google Patents

Setzgerät für einen Spreizanker Download PDF

Info

Publication number
EP0752296B1
EP0752296B1 EP96108549A EP96108549A EP0752296B1 EP 0752296 B1 EP0752296 B1 EP 0752296B1 EP 96108549 A EP96108549 A EP 96108549A EP 96108549 A EP96108549 A EP 96108549A EP 0752296 B1 EP0752296 B1 EP 0752296B1
Authority
EP
European Patent Office
Prior art keywords
clamping
piston
expansion
anchor
installation apparatus
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 - Lifetime
Application number
EP96108549A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0752296A1 (de
Inventor
Herbert Erath
Christian Schmid
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.)
Fischerwerke Artur Fischer GmbH and Co KG
Original Assignee
Fischerwerke Artur Fischer GmbH and Co KG
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 Fischerwerke Artur Fischer GmbH and Co KG filed Critical Fischerwerke Artur Fischer GmbH and Co KG
Publication of EP0752296A1 publication Critical patent/EP0752296A1/de
Application granted granted Critical
Publication of EP0752296B1 publication Critical patent/EP0752296B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B31/00—Hand tools for applying fasteners
    • 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
    • Y10T29/49938—Radially expanding part in cavity, aperture, or hollow body
    • Y10T29/49943—Riveting

Definitions

  • the invention relates to a setting device for setting an expansion anchor in a Undercut borehole.
  • Expansion anchors point away from a shaft, for example cone-shaped expanding head. He is going into a borehole with a Undercut, which has the shape of a hollow cone, for example, introduced.
  • a shaft for example cone-shaped expanding head.
  • a Undercut which has the shape of a hollow cone, for example, introduced.
  • a setting tool for an expansion anchor is known, which on a The shaft of the expansion anchor can be screwed on. With a hammer blows over a Shaft of the expansion anchor overlap sleeve of the setting tool an impact sleeve of Expansion anchor driven onto an expansion head of the expansion anchor and thereby the Spread anchors spread.
  • the shaft screwed into the setting tool is removed from the Setting tool retained, the setting tool on a workpiece in which the Expansion anchor is anchored, supported.
  • the setting tool is unscrewed from the anchored expansion anchor.
  • the well-known setting tool has the disadvantage that it expands when the expansion sleeve on the expansion body supported on the workpiece in order to retain the shaft of the expansion anchor, see above that parts from the surface of the workpiece can flake off.
  • An additional disadvantage, particularly in the case of plate-shaped workpieces is that the workpiece breaks due to the impact stress when spreading can.
  • the Setting tool according to the invention has a pressure-operated clamping device, by means of which an expansion anchor can be clamped to its shaft in the setting tool.
  • a the shaft part of the tensioning device which is fixed in the expansion anchor is immovable in one Housing of the setting tool attached, is thus retained by the housing during the spreading process, so that the expansion anchor does not exert any forces on the workpiece.
  • the setting tool according to the invention also has a pressure-actuated one Spreading device on, the expansion piston a expansion sleeve of the expansion anchor on the Pushes on the expansion head of the expansion anchor and thereby spreads the expansion anchor. Since the Expansion piston is pressurized with the same pressure as the housing, which is in the Clamping device, the shaft of the expansion anchor is firmly fixed in the housing retained with the same force with which the expansion piston pushes the expansion sleeve onto the Slides on the expansion head. This results in a closed force curve, the workpiece is neither due to the spreading process with a force at the bottom of the borehole nor applied to its surface so that damage to the workpiece is avoided become. Expansion anchors can therefore also be used by means of the setting device according to the invention in thin workpieces with a small remaining wall thickness at the bottom of the borehole.
  • a pressure relief valve separates when the anchor shaft is tightened in the tensioning device an expanding piston pressure chamber from a pressurized clamping piston pressure chamber ab, the expansion piston pressure space is during the tightening of the shaft of the armature thus depressurized. Only opens when a clamping pressure is reached in the clamping piston pressure chamber the pressure relief valve, so that the expansion piston pressure chamber is also pressurized. Switching from tightening the expansion anchor in the setting tool to spreading the The expansion anchor is therefore fully automatic and only after the clamping pressure has been reached and thus after reaching a predeterminable clamping force, which ensures that the Ensures the shaft of the expansion anchor in the setting tool during the expansion process.
  • the tensioning device is actuated and / or expanding pistons with compressed air.
  • the clamping device has a clamping piston with a pressurizable piston Clamping cone on.
  • the tensioning piston is provided with a bore with which it opens a collet is slidably guided, which for clamping the shaft of the Expansion anchor serves.
  • the tensioning piston moves The clamping cone comes onto a cone of the collet and presses it to clamp of the shaft of the expansion anchor in the radial direction.
  • the collet is rigid connected to a housing of the setting tool, it does not move with the tensioning piston With. To this way you get a simply constructed, reliably functioning Clamping device with only one moving part, the clamping piston.
  • the setting tool a pressurizable Expansion piston on which the expansion sleeve of the tensioned in the clamping device Expansion anchor moves in the direction of its expansion head and the This spreads the expansion anchor.
  • a further development of the invention sees one Expanding piston with an axial bore in which the clamping piston is recorded.
  • the expanding piston encloses the clamping piston, the two Pistons are slidable in the axial direction against each other.
  • This embodiment of the invention has another Advantage that the clamping device and the spreading device coaxially on the Expansion anchors act and, as a result, moments when the anchor is expanded arise neither within the setting tool nor at the anchor.
  • the setting tool according to the invention can be used both as a handheld device and also in an automatic setting machine for the automatic setting of expansion anchors integrate.
  • the typesetter is preferably in a fully automatic Drilling rig uses workpieces such as plates or tiles with undercuts provided drill holes at predetermined locations. On In this way, drilling and setting of expansion anchors are carried out precisely and quickly on a plant.
  • the setting tool 10 according to the invention shown in FIG. 1 has one Hollow cylinder 12, one end of which is sealed with a cover 14 is closed.
  • the cover 14 is screwed to the hollow cylinder 12.
  • Hollow cylinder 12 and cover 14 form a housing of the setting tool 10.
  • a flat stop ring 16 is provided with the end face opposite the cover 14 the hollow cylinder 12 screwed, which is a piece radially inward over the Hollow cylinder 12 survives.
  • an expansion piston 18 is displaceable in the axial direction added.
  • two flat piston grooves near the two ends of the Expanding pistons 18 have circumferential guide bands 20 inserted.
  • Of the Expansion piston 18 is by means of an O-ring 22 inserted into a piston groove sealed against the hollow cylinder 12.
  • the spreading disc 24 is located within the stop ring 16, it has radial play Stop ring 16 on. In the middle is the spreading disc 24 with a hole 26 provided that a shaft 28 of an expansion anchor 30, 32 is pushed through allowed (two expansion anchor types 30, 32 are each shown in half in FIG. 1).
  • An expansion sleeve 34 which is displaceable on the shaft 28 of the expansion anchor 30, 32 abuts on one edge of the bore 26 against the expansion disk 24.
  • Die Expansion sleeve 34 is used to spread one end or a separate one Expansion part 36 via an expansion cone 38 which is connected to the shaft 28 of the Expansion anchor 30, 32 is in one piece.
  • the expansion piston 18 is provided with an axial bore 39 in which a Tensioning piston 40 is slidably received in the axial direction. This points a circumferential guide band 42, which in a flat piston groove near one the expansion plate 24 facing end face is inserted and that Clamping piston 40 in the expansion piston 18 leads. By means of a piston groove inserted O-rings 44 are the tensioning piston 40 and the expansion piston 18 sealed against each other.
  • the expansion piston 40 is in one guided hollow cylindrical extension 46 which is integral with the lid 14 and by a little less than half a piston length in the axial direction Hollow cylinder 12 protrudes.
  • a rotating one Guide band 48 into a flat piston groove near the cover 14 facing end of the tensioning piston 40 inserted.
  • the tensioning piston 40 is sealed against the extension 46 of the cover 14 with an O-ring 50 which in a piston groove is inserted.
  • the bore 39 in the expansion piston 18 is designed as a stepped bore, which is in Extended direction of the lid 14.
  • the extension 46 is at least radial Direction play to the expanding piston 18.
  • the tensioning piston 40 has an axial bore 51 which is located on one of the Expanding plate 24 facing end extended to a clamping cone 52.
  • a known collet 54 In the Bore 51 of the clamping piston 40 is a known collet 54 with a cone 56 added.
  • the collet 54 is with a Screw sleeve 58 carrying internal thread screwed on the cover side End protrudes from the tensioning piston 40 and into a stepped bore of the cover 14 protrudes. With a screw 60, the screw sleeve 58 with the cover 14 screwed.
  • the collet 54 is rigid with the screw sleeve 58 Screwed cover 14. With two O-rings 62, 64, the screw sleeve is against the tensioning piston 40 and the cover 14 sealed.
  • the cover 14 delimits a clamping piston pressure chamber 66 inside it hollow cylindrical extension 46, which is completed by the tensioning piston 40.
  • a twice angled hole in the cover 14 leads as a fluid or Compressed air passage 70 from the clamping piston pressure chamber 66 to one Expansion piston pressure chamber 72.
  • the expansion piston pressure chamber 72 is from Hollow cylinder 12, from the cover 14, from the expansion piston 18 and the circumference of the Clamping piston 40 limited.
  • a pressure relief valve 74 In the compressed air passage 70 is a pressure relief valve 74 with a spring-loaded Valve piston 76 attached.
  • the spring tension of a valve spring 78, and thus the opening pressure of the pressure relief valve 74 is by means of a threaded pin 80 adjustable.
  • the pressure relief valve 74 In its basic position, the pressure relief valve 74 is closed and blocks the compressed air passage 70 from the clamping piston pressure chamber 66 to Expansion piston pressure chamber 72.
  • the valve piston 76 has two cross bores 82 crossing each other provided, which open into a piston groove 84. From the crossing point of the Cross bores 82 leads an axial blind bore 86 axially to one with the Valve chamber 87 communicating with the environment. Via the bores 82, 86 in the Valve piston 76 and the compressed air passage 70 communicates the Expansion piston pressure space 72 with the environment, d. H. it is vented.
  • the Piston groove 84 of the valve piston 76 causes the transverse bores 82 of the Valve piston 76 regardless of the rotational position of the valve piston 76 with the part of the compressed air passage 70 leading into the expansion piston pressure space 72 communicate.
  • the setting tool 10 functions as follows: the shaft 28 of a Expansion anchor 30, 32 is through the hole 26 of the expansion plate 24 in the Collet 54 introduced.
  • the clamping piston pressure chamber 66 is through the Compressed air connection 68 pressurized with compressed air, causing the tensioning piston 40 moves in the direction of the expansion plate 24.
  • the clamping cone 52 of the Clamping piston 40 slides onto the cone 56 of the collet 54 and presses whose jaws radially together, causing the shaft 28 of the expansion anchor 30, 32 is tensioned.
  • the valve piston 76 closes the Compressed air passage 70, the collet pressure chamber 66 is hermetic closed.
  • the spring-loaded valve piston 76 releases the compressed air passage 70 so that Compressed air from the collet pressure chamber 66 into the expansion piston pressure chamber 72 overflows.
  • the valve piston 76 blocks its transverse bores 82, so that the expansion piston pressure space 72 is closed off from the environment.
  • the Compressed air in the expansion piston pressure chamber 72 moves the expansion piston 40 to Stop on the stop ring 16. In doing so, it moves with the expansion piston 40 screwed expansion ring 24, the expansion sleeve 34 in the direction of the expansion head 38 of the expansion anchor 30, 32.
  • the expansion sleeve 34 itself or Spreading part 36 spread and the expansion anchor 30, 32 in one not illustrated borehole with a conical undercut, for example anchored.
  • the compressed air is through the Release the compressed air connection 68 from the clamping piston pressure chamber 66. Press helical compression springs 88, which are supported against the expansion plate 24 the tensioning piston 40 back into a starting position.
  • the collet 54 opens itself, so that the setting tool 10 of the shaft 28 of the Expansion anchor 30, 32 can be removed.
  • the expansion piston pressure chamber 72 is vented through the pressure relief valve 74, as soon as its valve piston 76, the compressed air passage 70 as it decreases Pressure in the clamping piston pressure chamber 66 closes.
  • Coil compression springs 90 the are supported against the stop ring 16, push the tensioning piston 18 in his starting position back.
  • the setting tool 10 with a Compressed air connection 68 screwed handle 92 in the form of a pistol grip shown, which has a compressed air connection 94.
  • a Compressed air valve operable by means of a finger lever 96.
  • the setting device 10 is vented by finger lever 96.
  • FIG. 3 shows the use of the setting tool 10 according to the invention in one Automatic setting machine 100 for setting and anchoring expansion anchors in Boreholes.
  • the expansion anchor 32 contains.
  • a slide 104 Under an estuary of the magazine 102 there is a slide 104, which is one Pneumatic cylinder 106 is actuated.
  • a blind bore 108 in the slide 104 serves to receive an expansion anchor 32.
  • the remaining expansion anchors 32 are from a pneumatically operated separating device 110 in the magazine 102 held back.
  • the setting tool 10 is by means of a rod guide 112 in the vertical direction slidably held on the automatic setting machine 100 and by means of a pneumatic Lift cylinder 114 drivable for a lifting movement.
  • the setting tool 10 is placed on the expansion anchor 32 by means of the lifting cylinder 114 lowered and this tensioned by compressed air supply at the compressed air connection 68.
  • the setting tool 10 is then raised again by the lifting cylinder 114, so that the expansion anchor 32 from the blind bore 108 of the slide 104th got out.
  • the pneumatic cylinder 106 of the slide 104 moves it to Side, so that the setting tool 10 can be moved freely down.
  • the expansion piston pressure space 72 is passed through a second compressed air connection 116 is supplied with compressed air.
  • the second Compressed air connection 116 is in place of the pressure relief valve 74 in the Compressed air passage 70 screwed in and closes it in the direction of Clamping piston pressure chamber 66.
  • the separating device 110 gives an expansion anchor during the setting 32 free from the magazine 102, which in the blind bore 108 of the slide 104th falls and is fed to the setting tool 10 by moving the slide 104.
  • a height-adjustable stop 118 on the slide 104 limits the Tension depth of the expansion anchor in the setting device 10 and in this way gives the Displacement of the expansion sleeve 34 on the expansion anchor 32 in front.
  • Figure 4 shows a section of a system for attaching Undercuts drill holes in plates, tiles or the like. And for placing expansion anchors in the drill holes.
  • the system 120 has two known drilling devices 122, which on a cross member 124 are movably attached.
  • the cross member 124 is in turn on one Machine frame 126 of the system 120 transversely to the direction of travel of the Drilling devices 122 movable. Workpieces not shown can be opened a work surface 128 of the machine frame 126 under the drilling devices Store 122.
  • the system 120 is preferably fully automatic operated computer controlled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Dowels (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Earth Drilling (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)
EP96108549A 1995-07-06 1996-05-29 Setzgerät für einen Spreizanker Expired - Lifetime EP0752296B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19524610 1995-07-06
DE19524610A DE19524610A1 (de) 1995-07-06 1995-07-06 Setzgerät für einen Spreizanker

Publications (2)

Publication Number Publication Date
EP0752296A1 EP0752296A1 (de) 1997-01-08
EP0752296B1 true EP0752296B1 (de) 1999-04-07

Family

ID=7766148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96108549A Expired - Lifetime EP0752296B1 (de) 1995-07-06 1996-05-29 Setzgerät für einen Spreizanker

Country Status (7)

Country Link
US (1) US5743130A (ja)
EP (1) EP0752296B1 (ja)
JP (1) JP2971398B2 (ja)
AT (1) ATE178521T1 (ja)
BR (1) BR9602982A (ja)
DE (2) DE19524610A1 (ja)
ES (1) ES2132807T3 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018193671A (ja) * 2017-05-12 2018-12-06 株式会社テクト あと施工アンカー打込み装置及びアンカー施工方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2562419A (en) * 1948-04-05 1951-07-31 George L Ferris Expansion nut setting tool
US3462988A (en) * 1968-02-21 1969-08-26 Robert H Tudor Anchor setting tool
JPS4736430U (ja) * 1971-05-08 1972-12-22
US3838588A (en) * 1971-05-14 1974-10-01 A Johnson Apparatus for setting unthreaded pull rivets
FR2255814A5 (en) * 1971-09-17 1975-07-18 Langensiepen Kg M Wall plug insertion device - rotates plug in hole to mix retaining glue and has quick release mechanism
JPS506392A (ja) * 1973-05-15 1975-01-23
DE2935964A1 (de) * 1979-09-06 1981-04-02 Dr.h.c. Artur 7244 Waldachtal Fischer Vorrichtung zur verankerung eines aus metall bestehenden duebels
US4248077A (en) * 1979-11-26 1981-02-03 Gregory Jack T Jaw for riveter
US4309138A (en) * 1980-02-08 1982-01-05 Jarman Davis R Floor anchor
US4314784A (en) * 1980-05-22 1982-02-09 The United States Of America As Represented By The Secretary Of The Navy Seafloor attachment bolts
JPH0249872B2 (ja) * 1984-03-30 1990-10-31 Ogura Kk Ankaaborutomekomikoteiyojigu
US4630510A (en) * 1984-05-10 1986-12-23 Monogram Industries, Inc. Tactile engaging wrenching mechanism
US4604889A (en) * 1984-12-27 1986-08-12 Huck Manufacturing Company Automated installation tool for blind fasteners
US4627140A (en) * 1985-04-01 1986-12-09 Drillco Devices Limited Anchor bolt setting impact tool
JPS63144132U (ja) * 1987-03-10 1988-09-22
US4852376A (en) * 1987-10-05 1989-08-01 Huck Manufacturing Company Lockbolt installation tool with cartridge feed
DE3840914A1 (de) * 1988-12-05 1990-06-07 Fischer Artur Werke Gmbh Befestigungssystem
DE3937417A1 (de) * 1989-11-10 1991-05-16 Hilti Ag Setzvorrichtung fuer duebel
US5035353A (en) * 1989-12-01 1991-07-30 Emhart Inc. Automatic riveting machine
US5136873A (en) * 1991-11-13 1992-08-11 S.A.R.G. Research Assoc, Ltd. Automatic blind rivet setting device
DE4215008C1 (de) * 1992-05-06 1993-11-11 Sfs Stadler Holding Ag Heerbru Vorrichtung zum Setzen eines selbstbohrenden Klemmbefestigers
US5371933A (en) * 1994-04-05 1994-12-13 Gbp Corporation Fastener setting tool with offset nose assembly
DE29500115U1 (de) * 1995-01-05 1995-02-23 Bbc Reaktor Gmbh Spannelement zum Festlegen in einer Bohrung eines Bauteiles

Also Published As

Publication number Publication date
BR9602982A (pt) 1998-04-28
JPH0929662A (ja) 1997-02-04
ES2132807T3 (es) 1999-08-16
JP2971398B2 (ja) 1999-11-02
DE59601584D1 (de) 1999-05-12
EP0752296A1 (de) 1997-01-08
US5743130A (en) 1998-04-28
ATE178521T1 (de) 1999-04-15
DE19524610A1 (de) 1997-01-09

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