EP0818279A1 - Setzwerkzeug für selbstschneidende Hinterschnittanker - Google Patents

Setzwerkzeug für selbstschneidende Hinterschnittanker Download PDF

Info

Publication number
EP0818279A1
EP0818279A1 EP97810419A EP97810419A EP0818279A1 EP 0818279 A1 EP0818279 A1 EP 0818279A1 EP 97810419 A EP97810419 A EP 97810419A EP 97810419 A EP97810419 A EP 97810419A EP 0818279 A1 EP0818279 A1 EP 0818279A1
Authority
EP
European Patent Office
Prior art keywords
anchor rod
support element
sleeve
setting tool
undercut
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.)
Withdrawn
Application number
EP97810419A
Other languages
German (de)
English (en)
French (fr)
Inventor
Hermann Beck
Markus Hartmann
Helmut Gassener
Susanne Kossian
Rainer Kussmaul
Erich Wisser
Reinhard Lins
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.)
Hilti AG
Original Assignee
Hilti 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 Hilti AG filed Critical Hilti AG
Publication of EP0818279A1 publication Critical patent/EP0818279A1/de
Withdrawn legal-status Critical Current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
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53796—Puller or pusher means, contained force multiplying operator
    • Y10T29/53848—Puller or pusher means, contained force multiplying operator having screw operator
    • Y10T29/53857—Central screw, work-engagers around screw
    • Y10T29/53878—Tubular or tube segment forms work-engager
    • Y10T29/53883—Screw threaded work-engager
    • 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
    • Y10T29/53909—Means comprising hand manipulatable tool
    • Y10T29/5393—Means comprising impact receiving tool

Definitions

  • the invention relates to a setting tool for self-tapping undercut anchors according to the preamble of claim 1.
  • the undercut For the majority of known undercut anchors, the undercut must be made before Setting the anchor can be created. This is done either with a complicated Drilling tool with which the cylindrical receiving bore and the undercut is made. However, such drilling tools are for hard Surfaces not very suitable. Therefore, it is usually initially cylindrical Drill hole made and then in a separate step with a special undercut tool at the desired depth prepared. Only then can the undercut anchor be inserted into the location hole and be anchored. This process of creating positive Anchoring is relatively time consuming and requires special tools such as for example collar drills for producing a location hole with a defined depth, a special undercut device and often an additional device for setting the Undercut anchor.
  • Undercut anchors have been proposed that only during the setting process Create undercut.
  • Such a self-tapping undercut anchor is for example, described in US-A-4,702,654.
  • the radially extendable segments are designed as cutting flaps for undercut anchors and have cutting edges at their free front ends.
  • the undercut anchor is positively anchored in a cylindrical Location hole inserted.
  • the sleeve rotates on during the setting process pushed on the cone, which is supported on the bottom of the mounting hole.
  • the cutting edges on the radial by the axial feed issued cutting rag in the wall of the cylindrical receiving bore Undercut the depth of which increases with the degree of flap opening gets bigger.
  • the undercut anchor is at the end of the setting process anchored positively.
  • a setting tool is used to set the undercut anchor has sleeve-shaped driving part, which over the rear free end of the Anchor rod is inserted into the mounting hole and with rotary drivers is equipped in the correspondingly formed grooves at the rear end of the Insert the sleeve.
  • a cylindrical one on the driving part Shaped shaft that is used as an insertion end for the tool holder of a rotary impact drill is trained.
  • the sleeve-shaped jacking part is turned axially by the drill Rotation offsets and transmits the rotary movement to the sleeve.
  • the axial propulsion of the Sleeve takes place through the axial delivered by the drill onto the driving part Blows.
  • this known setting tool requires that the cone the anchor rod is supported on the base of the mounting hole. For this reason, the depth of the mounting hole is precisely controlled. Are for special drilling tools with depth stop, such as collar drills, are required. Another disadvantage is that the cone of the anchor rod when Can dig into the bottom of the location hole. This can cause that the undercut is created too deep in the mounting hole and that the Undercut anchor is undesirably placed deep in the subsurface.
  • the object of the present invention is therefore to overcome these disadvantages of the setting tools Remedy the state of the art. It is supposed to be a setting tool for self-tapping Undercut anchors are created with which the undercut anchors are independent of the depth of the mounting hole can be anchored in the desired depth are. Bundle drills and similar drilling tools with a depth stop should be avoided can be. In particular, should be self-tapping with the setting tool Undercut anchors can be used, where it is not necessary that they are on Support the base of the location hole.
  • the setting tool should be simple in structure and in Be application and in the tool holders of known rotary impact drills be applicable.
  • the solution to these tasks is a setting tool for self-tapping Undercut anchor, which in the characterizing section of claim 1 Features listed.
  • the setting tool for self-tapping undercut anchors that form an anchor rod with a Setting direction expanding cone and a rotatable slid over the anchor rod
  • the driving part is involved a support element together, which is supported against the ground and a receptacle for the rear end opposite the cone Has anchor rod in which the anchor rod is axially fixable.
  • the driving part is axially displaceable relative to the support element.
  • the anchor rod is axially in the receptacle of the support element held desired position and prevented from falling into the mounting hole.
  • the support element is supported in the area of the mouth of the receiving bore Underground or on the surface of a connection component.
  • the driving part is with a cylindrical shank connected as the insertion end for the tool holder is formed by known rotary impact drills, and is opposite Support element axially displaceable. In this way, the axial strikes of the rotary impact drill and transfer the rotation of the tool holder to the sleeve the sleeve can be rotated and struck on the cone.
  • the radial flaps cut the undercut into the wall the cylindrical mounting hole. Because it is no longer required that the anchor rod is supported on the base of the mounting hole, this can also be no longer dig in the ground, and the undercut will be in the desired one Depth created.
  • the setting tool is very simple and essentially only includes that Propulsion part and the support element with receptacle for the anchor rod.
  • the operation of the setting tool does not require any special knowledge and precautions.
  • the The anchor rod with the sleeve pushed on only has to be inserted into the receptacle and there be axially fixed. Then the undercut anchor docked to the setting tool can be in the location hole are inserted.
  • With a rotary impact drill in the Tool holder the insertion end of the setting tool is inserted, it will Jacking part is set in rotation and axial impacts on the jacking part submitted. This expands the sleeve onto the cone, with the rotating ones Cutting flaps are exhibited radially while milling the undercut.
  • Only the rotary impact drill from the setting tool needs to end the setting process removed and the support element from the anchor rod of the seated Undercut anchor can be solved. Then the setting tool is ready to place one another self-tapping undercut anchor.
  • the maximum axial displacement of the propulsion part relative to the support element corresponds to the desired displacement of the sleeve along the anchor rod.
  • the user has a immediate setting control. Only when the jacking part by the full displacement is axially advanced relative to the support element, is the setting process completed and it is guaranteed that the cutting flap is the undercut with the desired undercut depth. Furthermore, through this Feature also ensures that propulsion of the sleeve is limited and the sleeve is not is pushed too far onto the cone. That way you can Overuse of the cutting flaps can be avoided.
  • Propulsion part and the support element are aligned with each other such that the Holder for the anchor rod arranged in the axial extension of the insertion end is.
  • a particularly simple embodiment variant of the receptacle for the anchor rod sees before that it has an internally threaded bore into which the an external thread provided rear end of the anchor rod can be screwed.
  • the holder for the Anchor rod is designed as an exchange part. This way, recordings can be made with different bore diameters are connected to the support element.
  • the anchor rod is one Has bore with an internal thread, a receptacle with a corresponding trained pins are provided. The training of recording as Exchange part increases the flexibility of the setting tool.
  • the anchor rod is clamped in the Recording held.
  • the anchor rod can be clamped, for example, via a Clamping bolts that run vertically to the anchor rod are made around its axis is rotatable and has a flattened area in the edge area of the receptacle is arranged and in the pivoted state in which the flattened area The center of the recording is turned, the recording is released or in the rotated state, on which the opposite circumferential contour of the clamping bolt protrudes into the receptacle, the anchor rod is fixed by clamping.
  • the driving part can be used Rotary drivers can be equipped, which in correspondingly formed grooves and / or engage projections on the rear end of the sleeve.
  • the setting tool is the propulsion part and the support element non-rotatably coupled. This variant is particularly suitable for self-tapping undercut anchors, where the anchor rod and the sleeve are rotatably coupled together.
  • the rotary coupling of the anchor rod and the sleeve of the undercut anchor as well as the jacking part and the support element of the Setting tool makes rotary drivers on the driving part unnecessary for the sleeve.
  • the rotating propulsion part takes the support element with it. The in the inclusion of the Support element rotatably held in suspension above the bottom of the receiving bore The anchor rod also rotates and transmits the rotary movement to the sleeve.
  • FIG. 1 and 2 schematically show an embodiment of the inventive Setting tool in connection with an undercut anchor to be anchored. It poses Fig. 1 shows the state before anchoring and Fig. 2 shows the state at the end of Setting process.
  • the setting device according to the invention is in each case together with the Reference number 1 provided. It comprises a driving part 2, onto which a shaft 3 is molded is that as an insertion end for the tool holder of a not shown Rotary impact drill is formed, for example a hammer drill Applicant.
  • the setting tool 1 comprises a support element 4, which is located on the Supported surface of a component C against the substrate G.
  • One in one cylindrical undercut anchor B to be anchored is complete designated 6 and shown inserted in the receiving bore B.
  • Undercut anchor 6 is self-tapping and is generated during the setting process an undercut U in the wall of the cylindrical receiving bore B.
  • Der Self-tapping undercut anchor 6 comprises an anchor rod 7 which is attached to its in Setting direction front end with a to the bottom of the mounting hole B expanding cone 8 is provided.
  • a sleeve 9 is pushed over the anchor rod 7 and displaceable in the direction of the axis A of the undercut anchor.
  • the sleeve 9 instructs their front end facing the cone cutting flap 91 with blades that are radially deployable when the sleeve 9 is pushed onto the cone 8.
  • the cutting can be hard metal inserts or pins, for example, or hardened ones Projections, such as welding spots or welded and hardened metal pieces the free ends of the cutting tab 91 may be provided.
  • the sleeve 9 can be in one piece be formed, it can also consist of two sleeve sections, as shown.
  • the front sleeve section provides the cutting sleeve 93 with the cutting tabs represents, while the adjoining rear sleeve section 92 as a thrust sleeve is formed, the length of which can vary according to the length of the anchor rod 7.
  • the anchor rod 7 is in a receptacle 5 in Support element 4 axially fixed.
  • the axial dimensioning of the for example, setting tool 1 selected such that the anchor rod 7 over the bottom of the mounting hole is kept in suspension.
  • the driving part 2 is axially displaceable relative to the support element 4.
  • the driving part 2 and the support element 4 are rotationally coupled.
  • the anchor rod 7 is axially fixed in the receptacle 5 in the support element 4 and also rotatably coupled to the support element 4. This makes the Anchor rod 7 with the rotation of the support element 4 and rotates about the axis A.
  • Am Cone 8 radially extending, rib-like rotary drivers 81 are provided, which in the Intervene between the cutting tab 91 and the rotary movement transferred to the sleeve 9, or at least to the cutting sleeve 93.
  • the percussion mechanism of the rotary-impact drilling machine turns axial Strikes on the driving part 2 given.
  • the jacking part acts as Intermediate striker and transmits the axial blows over at the rear end of the Sleeve 9 or the thrust sleeve 92 abutting axial projections 21 on the Cutting sleeve 93. Due to the axial blows, the driving part 2 is in the setting direction shifted and the sleeve 9 or the cutting sleeve 93 relative to the axially in Float over the bottom of the mounting hole B fixed anchor rod 7 on the Cone 8 pushed on.
  • the cutting flaps 91 are radially issued.
  • Fig. 3 shows a second embodiment of the setting tool according to the invention, the is provided overall with the reference number 11. It includes a driving part 12 that an insertion end 13 is formed.
  • the driving part has a sleeve-like, cylindrical section 121 on that with two diametrically opposite Axial slots 122 is provided in the front end face of the section 121 flow out.
  • the axial slots 122 serve to receive a support element 14, which Has the shape of a flat, U-shaped bracket.
  • the length of the axial slots 122 defines the maximum displacement of the feed part 12 fixed.
  • the outside diameter of the cylindrical section 121 corresponds to the outer diameter of the sleeve 9 of the setting undercut anchor 6.
  • the support element 14 is with a receptacle 15 for the anchor rod 7 of the self-tapping undercut anchor 6, which as Incision in the transverse to the longitudinal extent of the setting tool 11 section of the Support element 14 is formed and an internal thread for with a Has externally threaded anchor rod 7.
  • a stop surface 16 at the bottom of the incision supports the rear end of the anchor rod.
  • the sleeve 9 of the undercut anchor grooves 94 are provided for receiving Protrusions 123 serve from the front end of the cylindrical portion 121 protrude.
  • the rotational movement of the Propulsion part 12 transferred directly to the sleeve 9 by the projections 123 on engage cylindrical portion 121 in the grooves 94 of the sleeve 9.
  • support element 14 only has the function of axially closing the anchor rod 7 fix.
  • the device shown is thus also suitable for undercut anchors have no rotary drivers for the sleeve 9 on the cone.
  • Fig. 4 shows a further embodiment of the setting tool according to the invention in partial axial section.
  • the setting tool provided overall with the reference number 31 comprises a support element 34 and an axially displaceable relative to this Propulsion part 32.
  • the propulsion part 32 is connected to a cylindrical shaft 33 which is designed as an insertion end for a rotary impact drill.
  • the driving part 32 and the support element 34 are rotationally coupled.
  • the driving part 32 has on it on the side opposite the shaft 33 axially projecting claws 321 which in Openings 341 protrude in the support element 34.
  • the receptacle 35 for the rear end the anchor rod is formed by an axial bore in the support element 34.
  • a Clamping bolt 36 passes through the bore 35 in the edge area and is rotatable in the Support element 34 mounted.
  • the clamping bolt 36 is connected to a lever 38 which is arranged on the outside of the support element 34.
  • the scope of the Clamping pin 36 has a flattened area 37 which extends into the bore 35 can be swiveled in, the bore 35 being released. By pivoting the Clamping bolt 36, the flattened area is rotated away from the bore 35 and the The diameter of the bore is narrowed. As a result, one is inserted into the bore 35
  • the anchor rod is axially fixed and non-rotatably connected to the support element 34.
  • Anchor rods By the Anchor rod is fixed by clamping, anchor rods can also without External threads are used in the receptacle 35 to secure them axially and to rotate with the support member 34.
  • the function of this Embodiment of the setting tool according to the invention corresponds to the function of the embodiment described with reference to FIGS. 1 and 2.
  • the setting tool according to the invention allows self-tapping undercut anchors anchored reliably without first having to define a location hole Depth needs to be created. As a result, the user is informed of the setting depth of the positive anchoring flexible. Special tools, such as drill bits or the like are not required.
  • the anchor rod must move during the setting of the undercut anchor is no longer supported at the base of the location hole and can no longer dig into the ground.
  • the setting tool is simple in construction and also easy to use and in connection with well-known rotary impact drills, For example, the applicant's hammer drills, with which also the cylindrical locating hole is made applicable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Piles And Underground Anchors (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Dowels (AREA)
  • Earth Drilling (AREA)
EP97810419A 1996-07-12 1997-07-01 Setzwerkzeug für selbstschneidende Hinterschnittanker Withdrawn EP0818279A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19628216A DE19628216A1 (de) 1996-07-12 1996-07-12 Setzwerkzeug für selbstschneidende Hinterschnittanker
DE19628216 1996-07-12

Publications (1)

Publication Number Publication Date
EP0818279A1 true EP0818279A1 (de) 1998-01-14

Family

ID=7799708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97810419A Withdrawn EP0818279A1 (de) 1996-07-12 1997-07-01 Setzwerkzeug für selbstschneidende Hinterschnittanker

Country Status (6)

Country Link
US (1) US6012358A (zh)
EP (1) EP0818279A1 (zh)
JP (1) JPH10103317A (zh)
KR (1) KR980009977A (zh)
CN (1) CN1176351A (zh)
DE (1) DE19628216A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20202865U1 (de) * 2002-02-23 2003-06-26 fischerwerke Artur Fischer GmbH & Co. KG, 72178 Waldachtal Setzvorrichtung für Hohlraummetalldübel
DE20301763U1 (de) * 2003-02-05 2004-06-17 Fischerwerke Artur Fischer Gmbh & Co. Kg Setzwerkzeug für Hülsenanker
EP3315259A1 (de) * 2016-10-28 2018-05-02 HILTI Aktiengesellschaft Setzwerkzeug mit axial auskuppelbarer bolzenkupplung

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002061299A (ja) * 2000-08-11 2002-02-28 Yamahiro:Kk アンカー施工工具用治具を用いた施工方法とその治具
US6537004B2 (en) * 2000-09-13 2003-03-25 Huck Patents, Inc. Blind fastener and drive nut assembly
US6676347B2 (en) 2000-09-13 2004-01-13 Huck Patents, Inc. Blind fastener and drive nut assembly
US20040200323A1 (en) * 2003-04-08 2004-10-14 Ellerson Henry Watkins Wrench for recessed nuts
CN1308655C (zh) * 2005-10-13 2007-04-04 华中科技大学 一种二维外形轮廓自扫描投影测量装置
DE102007039141A1 (de) * 2007-08-18 2009-02-19 Fischerwerke Gmbh & Co. Kg Setzwerkzeug
DE102007060954A1 (de) * 2007-12-18 2009-06-25 Fischerwerke Gmbh & Co. Kg Setzeinheit und Setzverfahren
US20090158567A1 (en) * 2007-12-21 2009-06-25 Geoffrey Scott Fulton Apparatus, system, and method for fastening screw and sheath anchors
US20100005932A1 (en) * 2008-06-26 2010-01-14 Young Tyler V Spud wrench
FR2948592B1 (fr) * 2009-07-28 2012-05-11 Messier Dowty Sa Outillage pour extraire des elements annulaires montes serres dans des trous notamment borgnes de pieces
DE102012221114B3 (de) * 2012-11-19 2014-04-10 Hilti Aktiengesellschaft Setzwerkzeug für Einschlaganker
JP6376528B2 (ja) * 2014-01-31 2018-08-22 中日本高速道路株式会社 アンカー孔拡径装置及びその装置を利用したアンカー孔拡径方法と拡張アンカー固定構造
CN104713755B (zh) * 2015-01-12 2018-03-20 苏州赛力菲陶纤有限公司 一种复丝拉伸试验样品制备装置
EP3073130A1 (de) * 2015-03-27 2016-09-28 HILTI Aktiengesellschaft Spreizanker
DE102015007938A1 (de) * 2015-06-19 2016-12-22 Ludwig Ehrhardt Gmbh Spannbolzen und Spannvorrichtung mit einem solchen Spannbolzen
CA2987589A1 (en) * 2017-12-05 2019-06-05 Robert Cousineau Locking drill bit tool and stabilizing setting tool head system
DE102019100465A1 (de) * 2018-02-09 2019-08-14 Fischerwerke Gmbh & Co. Kg Setzgerät für einen Spreizanker
CN113864304B (zh) * 2020-06-30 2023-06-13 喜利得股份公司 用于自钻孔锚栓的安装设备及安装方法

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US3472052A (en) * 1968-03-20 1969-10-14 Harold C Chance Setting tool for bolt anchor
US4627140A (en) * 1985-04-01 1986-12-09 Drillco Devices Limited Anchor bolt setting impact tool
US4702654A (en) * 1985-10-03 1987-10-27 Upat Gmbh & Co. Spreading anchor

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US2377077A (en) * 1943-07-24 1945-05-29 Gay Bert Expansion nut
US2381597A (en) * 1944-08-21 1945-08-07 Richard J Johnson Socket wrench
SU120163A1 (ru) * 1958-03-13 1958-11-30 М.М. Шеншин Гаечный ключ с двум головками
US3050733A (en) * 1961-02-08 1962-08-28 Bach Edward William Tool
US3489041A (en) * 1967-08-15 1970-01-13 Warwick Electronics Inc Nut driving tool
US3822616A (en) * 1973-02-23 1974-07-09 Cincinnati Milacron Inc Nut driver
US4836062A (en) * 1987-03-11 1989-06-06 Lok-Fast, Inc. Universal tool adaptes for blind fastener installation tools and a universal method for installation of blind fasteners

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Publication number Priority date Publication date Assignee Title
US3472052A (en) * 1968-03-20 1969-10-14 Harold C Chance Setting tool for bolt anchor
US4627140A (en) * 1985-04-01 1986-12-09 Drillco Devices Limited Anchor bolt setting impact tool
US4702654A (en) * 1985-10-03 1987-10-27 Upat Gmbh & Co. Spreading anchor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE20202865U1 (de) * 2002-02-23 2003-06-26 fischerwerke Artur Fischer GmbH & Co. KG, 72178 Waldachtal Setzvorrichtung für Hohlraummetalldübel
DE20301763U1 (de) * 2003-02-05 2004-06-17 Fischerwerke Artur Fischer Gmbh & Co. Kg Setzwerkzeug für Hülsenanker
EP3315259A1 (de) * 2016-10-28 2018-05-02 HILTI Aktiengesellschaft Setzwerkzeug mit axial auskuppelbarer bolzenkupplung

Also Published As

Publication number Publication date
US6012358A (en) 2000-01-11
DE19628216A1 (de) 1998-01-15
JPH10103317A (ja) 1998-04-21
CN1176351A (zh) 1998-03-18
KR980009977A (ko) 1998-04-30

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