EP3060817A1 - Élément d'ancrage à expansion avec élément ressort - Google Patents

Élément d'ancrage à expansion avec élément ressort

Info

Publication number
EP3060817A1
EP3060817A1 EP14784217.3A EP14784217A EP3060817A1 EP 3060817 A1 EP3060817 A1 EP 3060817A1 EP 14784217 A EP14784217 A EP 14784217A EP 3060817 A1 EP3060817 A1 EP 3060817A1
Authority
EP
European Patent Office
Prior art keywords
bolt
expansion
spring element
max
anchor
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Withdrawn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
EP14784217.3A
Other languages
German (de)
English (en)
Inventor
Peter Gstach
Bernhard Winkler
Patrick Scholz
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
Priority to EP14784217.3A priority Critical patent/EP3060817A1/fr
Publication of EP3060817A1 publication Critical patent/EP3060817A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
    • F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
    • F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
    • F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
    • F16B13/065—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting the screw, nail or the like
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B43/00—Washers or equivalent devices; Other devices for supporting bolt-heads or nuts

Definitions

  • the invention relates to an expansion anchor for anchoring in a borehole in a substrate according to the preamble of claim 1.
  • Such an expansion anchor is equipped with a bolt with a front end and a front end opposite the rear end, a bolt arranged on the expansion sleeve, an expansion cone, which is arranged in the region of the front end of the bolt, and which urges the expansion sleeve radially outwards when the expansion cone, in particular together with the bolt, is displaced in a pull-out direction relative to the expansion sleeve, an abutment for the axial pressing of an attachment to the substrate, which is arranged in the region of the rear end of the bolt on the bolt, and a bolt, in particular in the region of the rear end of the bolt, arranged spring element for axially biasing the abutment and preferably also the bolt against the attachment.
  • An expansion anchor with spring element is known for example from DE 33 31 097 A1. He has between his trained as a screw head Wderlager and the substrate in which the anchor is set, a spring element. This spring element can partially maintain the bias in the bolt of the expansion anchor when the substrate relaxes in the course of a few hours and days after the anchor has been set.
  • the object of the invention is to provide a particularly reliable expansion anchor with particularly good load ratings, especially in cracked concrete, which is also designed to be particularly simple and inexpensive.
  • the object is achieved according to the invention by an expansion anchor with the features of claim 1. Preferred embodiments are given in the dependent claims.
  • An inventive expansion anchor is characterized in that the axial spring force F of the spring element in the range F min ⁇ F ⁇ F max with
  • the invention is based on experiments carried out with expansion anchors in cracked concrete. If a concrete crack in which the expansion anchor is located extends to a typical width of, for example, 0.3 mm to 0.5 mm, the prestressing force in the bolt drops, since the expansion cone and thus the bolt typically range from 0.4 mm to 0.8 mm moved in the extension direction, and the possibly existing spring element relaxed by a corresponding distance. This drop in biasing force can result in reduced anchoring and thus can adversely affect the load characteristics of the armature and, in particular, result in undesirable displacement of the armature as the crack repeatedly opens and closes. Because with decreasing biasing force, in extreme cases to 0 kN, the Aufsp Son Schwarz Sign decreases, and the expansion tabs of the expansion sleeve can be solved in extreme cases of the borehole wall.
  • the invention proposes a spring element with a special spring characteristic in the force-displacement diagram.
  • the remaining residual spring force F is in a predetermined range between F min and F max , when the spring element initially reaches its maximum spring travel s max when setting the armature had, and has relaxed the spring element, especially at crack opening, then the typical for cracked concrete way of 0.4 mm to 0.8 mm.
  • the invention has recognized that, with a spring element dimensioned according to the invention, sufficiently high residual prestresses can be maintained under typical conditions in cracked concrete, so that the above-described negative effect of a crack opening can be largely avoided.
  • the invention has recognized that the spring element can be performed at the intended parameters usually still as a single-layer disc spring, so that the production cost and manufacturing costs for the spring element and thus for the entire anchor can be particularly low.
  • the spring characteristic at the maximum spring travel s max can bend very steeply upwards.
  • a relaxation of 0.4 to 0.8 mm from the maximum travel out can in particular include that the spring element is rebound to this path length of the maximum travel away, so that applies to the spring travel s:
  • the axial spring force F of the spring element is at least a single position in the range 0.4 mm to 0.8 mm from the maximum travel out in the range F min ⁇ F ⁇ F max , ie if F min ⁇ F ⁇ F max for at least one spring travel s in the range (s max - 0.8 mm) ⁇ s ⁇ (s max - 0.4 mm) applies.
  • the invention defines a line in the force-displacement diagram which is cut by the spring characteristic of the spring element.
  • the axial spring force F of the spring element in the entire range 0.4 mm to 0.8 mm out of the maximum spring travel ie for each travel s in the range (s max - 0.8 mm) ⁇ s ⁇ (s max - 0.4 mm ), in the range F min ⁇ F ⁇ F max .
  • the invention then defines a rectangle in the force-displacement diagram, in which the spring characteristic of the spring element must lie. As a result, a particularly reliable anchor in cracked concrete can be obtained.
  • the spring element according to the invention is, in particular, a compression spring, that is to say a spring which generates an axial spring force during axial compression.
  • a compression spring that is to say a spring which generates an axial spring force during axial compression.
  • this may in particular relate to the longitudinal axis of the bolt, which may be in particular the symmetry and / or center axis of the bolt.
  • the maximum diameter d max of the bolt is preferably measured perpendicular to the longitudinal axis of the bolt.
  • the maximum diameter d max of the bolt preferably corresponds approximately to the nominal diameter of the expansible anchor, so in particular the diameter of the borehole, is provided for the expansible anchor.
  • the expansion anchor may preferably be a force-controlled expanding expansion anchor.
  • the expansion sleeve is displaceably arranged on the bolt along the bolt, in particular fastened thereto.
  • the expansion sleeve and / or the bolt suitably consist of a metal material, which, for example, for selectively influencing the friction, may also be coated.
  • the expansion sleeve is urged by an oblique surface of the expansion cone radially outward and pressed against the borehole wall in the substrate when the expansion cone is axially displaced relative to the expansion sleeve in the extension direction of the bolt.
  • the expansion anchor is anchored in the borehole.
  • the extension direction is parallel to the longitudinal axis of the bolt and / or points out of the borehole.
  • the distance between the surface of the expansion cone from the longitudinal axis of the bolt against the extension direction that is, with increasing distance from the rear end of the bolt, to.
  • the surface of the expansion cone can be strictly conical, but it does not have to.
  • the abutment expediently forms a shoulder, in particular a ring step, on which or on which the abutment can act positively against the attachment.
  • tensile forces which are directed in the extension direction, can be introduced into the bolt on the abutment.
  • the Wderlager can have an external polygon, such as a hexagon, to the tool approach.
  • the abutment can be axially fixed and rotatably provided on the bolt and in particular integrally formed therewith be.
  • the abutment may also be a separate part of the bolt, which, for example by rotation, axially relative to the bolt can be offset.
  • the abutment is preferably made of a metal material.
  • the Wderlager axially acts against the spring element when the anchor is set, so that the spring element is clamped between the abutment and the attachment.
  • the spring element is preferably on the one hand on Wderlager and on the other hand on the attachment, in each case at least indirectly.
  • the spring element can rotate around the pin.
  • the spring element is preferably made of a metal material.
  • the spring element may be a single-layer disk spring.
  • a spring element for axially biasing the abutment against the attachment which is designed as a single-layer disc spring.
  • the diaphragm spring may preferably surround the bolt like a ring.
  • the diaphragm spring may be configured to be flat upon reaching the maximum spring travel. But it can also have one or more support elements, so that it is not completely flat on block, that is, when reaching the maximum spring travel.
  • the expansion anchor has a washer which surrounds the bolt, and / or which is preferably arranged between the spring element and the Wderlager.
  • the washer is provided on the rear end of the bolt facing side of the spring element.
  • Such a washer can further increase the reliability of the system, in particular by providing a particularly accurate spring characteristic, for example by decoupling torsional forces on the abutment from the spring element.
  • a washer between the attachment and the spring element can be provided, ie on the front end of the bolt facing side of the spring element. It can also be provided several washers. But for a particularly cost-effective design, the washer can also be omitted.
  • the spring element can rest directly on the attachment and / or Wderlager.
  • the expansion cone In a so-called bolt anchor, the expansion cone can be arranged axially fixed on the bolt. When setting the anchor of the expansion cone is then drawn by a common axial movement of the bolt and the expansion cone relative to the expansion sleeve in the expansion sleeve.
  • the expansion cone is preferably formed integrally with the bolt.
  • the expansion cone may be a part which is separate from the bolt and may preferably be connected to the bolt via corresponding threads.
  • the drawing of the expansion cone in the expansion sleeve when setting the anchor can then be preferably at least partially effected by rotation of the bolt relative to the expansion cone, which is converted by a spindle drive, which is formed by the corresponding threads in an axial movement of the expansion cone relative to the bolt.
  • the bolt has an external thread in the region of its rear end, and that the abutment is a nut which is screwed onto the external thread.
  • the mother thus has an internal thread corresponding to the external thread of the bolt.
  • the invention can be used in anchor bolts, in which the expansion sleeve does not reach to the borehole mouth.
  • the bolt may have a stop which limits a displacement of the expansion sleeve from the expansion cone, that is, a displacement in the extension direction.
  • a stop can ensure in a particularly simple manner that the expansion sleeve reliably penetrates into the borehole together with the bolt.
  • the stop is formed by a collar, which can be advantageous in terms of manufacturing technology and in terms of reliability.
  • the stop can be arranged axially between the expansion cone and the abutment.
  • the maximum diameter d max of the bolt between the expansion cone and the abutment so offset from the expansion cone and offset to the Wderlager determined.
  • the maximum diameter d max of the bolt between the expansion cone and the abutment may preferably be a global maximum.
  • the maximum diameter d max of the bolt between the expansion cone and the Wderlager can occur in particular on the thread or on the annular collar of the bolt. It is thus particularly preferred that the maximum diameter d max of the bolt between the expansion cone and the abutment of the thread outer diameter of the thread of the bolt is.
  • the expansion sleeve has at least one expansion slot.
  • the expansion slot can separate two adjacent expansion segments of the expansion sleeve.
  • the expansion slot extends from the front end of the expansion sleeve and can facilitate the deformation of the expansion sleeve.
  • the invention is used in particular for such bolts in which d max > 4 mm, since in this case F min > 0 kN.
  • the invention also relates to a set expansion anchor, wherein the expansion anchor is anchored in the borehole, wherein the spring element biases the abutment of the bolt against the attachment.
  • the spring element is in this case at least indirectly, preferably directly on the attachment.
  • the spring element is suitably axially between substrate and abutment and / or at least partially, preferably completely, outside the borehole.
  • the set anchor is conveniently inserted through a recess, preferably a hole, in the fixture into the wellbore in the substrate.
  • Figure 1 is a partially longitudinal sectional view of a set in a concrete substrate inventive expansion anchor
  • Figure 2 a force-displacement diagram with an inventive spring characteristic for a
  • FIG. 3 is a graph showing with dashed lines the relations according to the invention for F min and
  • FIG. 4 shows a partially longitudinally sectioned view of an expansion anchor according to the invention set in a concrete substrate according to a second embodiment
  • Figure 5 a partially longitudinal sectional view of a set in a concrete substrate inventive expansion anchor similar to Figure 1, but without a washer.
  • the expansion anchor 1 shown has a bolt 10 and an expansion sleeve 20, wherein the expansion sleeve 20 surrounds the bolt 10 in an annular manner.
  • the bolt 10 In the region of its front end 51, the bolt 10 has an expansion cone 12 for the expansion sleeve 20, to which a neck region 1 1 adjoins at the rear.
  • the bolt 10 has a substantially constant cylindrical cross-section.
  • the surface of the bolt 10 is formed as an inclined surface 13, and the diameter of the bolt 10 increases there towards the first end 51, that is, the bolt 10 expands on the expansion cone 12, starting from the neck portion 1 1 to its front first At the end of 51.
  • the inclined surface 13 on the expansion cone 12 may be conical in the strict mathematical sense, but this is often not.
  • the bolt 10 On the side facing away from the expansion cone 12 of the neck portion 11, the bolt 10 has a trained example as an annular collar stop 17 for the expansion sleeve 20. In the region of its rear end 52, the bolt 10 has an external thread 18 for introducing tensile forces into the bolt 10. On this external thread 18 sits a nut 80, which forms an axial Wderlager 8.
  • the nut 80 is provided with an external polygon, in particular an external hexagon, and an internal thread which corresponds to the external thread 18 of the bolt 10.
  • the expansion anchor 1 of Figure 1 also has a spring element 7, which surrounds the pin 10 like a ring, and which is exemplified in Figure 1 as a single-layer disc spring.
  • the spring element 7 designed as a compression spring is located axially between substrate 5 and Wderlager 8, in particular axially between attachment 6 and abutment 8, and thus can bias the Wderlager 8 and thus the bolt 10 axially relative to the substrate 5 and the attachment 6 with anchor set.
  • the spring element 7 is thus arranged on the front end 51 of the bolt 10 facing side of the abutment 8. Between spring element 7 and abutment 8, a washer 78 is still provided according to Figure 1.
  • the bolt 10 When setting the expansion anchor 1, the bolt 10 is pushed with its first end 51 first through a recess in the attachment 6 in the direction of the longitudinal axis 100 of the bolt 10 in a borehole 99 in the substrate 5 of Figure 1. Due to the stop 17, which limits a displacement of the expansion sleeve 20 from the expansion cone 12 of time, while the expansion sleeve 20 is introduced into the borehole 99. Then, the bolt 10 is again pulled out of the borehole 99 by pulling the nut 80 forming the wound bearing 8 a little way in the direction of extension 101 running parallel to the longitudinal axis 100.
  • the expansion sleeve 20 Due to their friction on the substantially cylindrical wall 98 of the borehole 99, the expansion sleeve 20 thereby remains in the borehole 99 and, as a result, a displacement of the bolt 10 relative to the expansion sleeve 20 occurs. With this displacement, the inclined surface 13 of the expansion cone 12 of the bolt 10 penetrates deeper and deeper into the expansion sleeve 20 that the expansion sleeve 20 is radially expanded in the region of its front end of the inclined surface 13 and pressed against the wall 98 of the borehole 99. By this mechanism, the expansion anchor 1 is fixed in the substrate 5. The nut 80 is preferably further tightened until the spring element 7 is completely compressed, ie has reached its maximum spring travel s max . This is accompanied by an axial nominal prestress in the bolt 10.
  • FIG. 2 An example of an inventive spring characteristic of the spring element 7 is shown in FIG.
  • Figure 3 shows a diagram with possible limits F min and F max for the residual spring force F at relaxation 0.4 mm to 0.8 mm from the maximum travel out for different d max .
  • F min and F max for the residual spring force F at relaxation 0.4 mm to 0.8 mm from the maximum travel out for different d max .
  • dashed lines are the inventive relationships
  • Fmax d max ⁇ 0.6 kN / mm (upper dashed line in FIG. 3). With points connected by solid lines, values for F ' min (circular points, bottom) and F' max (square points, top) are given, which have been found to be particularly useful in experiments. As FIG. 3 shows, the above-mentioned relationships for F min and F max are linear approximations to these experimental points. Instead of the relationships, the points shown in FIG. 3 and their linear connecting lines F min and F max can also be defined. As shown in FIG. 1, the maximum bolt diameter d max between the expansion cone 12 and the wedge bearing 8, which forms the abscissa in FIG. 3, can be the external thread diameter of the external thread 18 of the bolt 10.
  • the expansion anchor 1 is designed as a so-called anchor bolt.
  • Another embodiment in which the expansion anchor 1 is designed as a so-called sleeve anchor is shown in FIG.
  • the expansion cone 12 in the sleeve anchor of Figure 4 is a separate part from the bolt 10. It has an internal thread which corresponds to an external thread on the bolt 10.
  • the expansion sleeve 20 which may also be multi-part, to the well mouth, and the abutment 8 at the rear end of the bolt 10 is formed as a screw head 88, rotatably and axially fixed to the bolt 10 and in particular integrally with formed the bolt 10.
  • the bolt 10 is rotated about the screw head 88 about the longitudinal axis 100 in rotation.
  • the corresponding threads convert this rotational movement of the bolt 10 into an axial movement of the expansion cone 12 relative to the bolt 10 and thus relative to the expansion sleeve 20, which leads to the insertion of the expansion cone 12 into the expansion sleeve 20.
  • a spring element 7 is provided, which can bias the abutment 8 and thus the bolt 10 relative to the substrate 5 and / or the attachment 6.
  • the characteristic of the spring element 7 of the armature of Figure 4 is suitably also as explained in connection with Figures 2 and 3 explained.
  • a washer 78 is provided between spring element 7 and abutment 8 in each case. But this washer 78 can also be omitted.
  • An embodiment without shim is shown in FIG. This embodiment corresponds, except for the absence of the washer, that of Figure 1.
  • the washer 78 may be omitted, so that even there, the spring element 7 may abut directly on the abutment 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dowels (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

L'invention concerne un élément d'ancrage à expansion (1), destiné à être ancré dans un trou percé (99) dans un substrat (5), qui comprend un goujon (10) muni d'une extrémité avant (51) et d'une extrémité arrière (52) à l'opposé de l'extrémité avant, une douille à expansion (20) montée sur le goujon, un cône d'expansion (12) qui est disposé dans la zone de l'extrémité avant du goujon et qui pousse la douille à expansion dans le sens radial vers l'extérieur lorsque le cône d'expansion est déplacé dans une direction d'extraction par rapport à la douille à expansion, un appui (8) destiné au pressage axial d'une pièce rapportée (6) contre le substrat, lequel est disposé dans la zone de l'extrémité arrière du goujon, ainsi qu'un élément ressort (7) disposé sur le goujon et servant à la précharge axiale de l'appui contre la pièce rapportée. Conformément à l'invention, la force de ressort axiale F de l'élément ressort se situe dans la plage Fmin < F < Fmax, avec Fmin = dmax. 0,2 kN/mm - 0,8 kN Fmax= dmax. 0,6 kN/mm, lorsque l'élément ressort est détendu dans le sens axial de 0,4 mm à 0,8 mm hors de sa course de ressort maximale. dmax désigne ici un diamètre maximum du goujon entre le cône d'expansion et l'appui.
EP14784217.3A 2013-10-22 2014-10-14 Élément d'ancrage à expansion avec élément ressort Withdrawn EP3060817A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP14784217.3A EP3060817A1 (fr) 2013-10-22 2014-10-14 Élément d'ancrage à expansion avec élément ressort

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP20130189656 EP2865903A1 (fr) 2013-10-22 2013-10-22 Ancrage expansible avec élément élastique
EP14784217.3A EP3060817A1 (fr) 2013-10-22 2014-10-14 Élément d'ancrage à expansion avec élément ressort
PCT/EP2014/071962 WO2015058997A1 (fr) 2013-10-22 2014-10-14 Élément d'ancrage à expansion avec élément ressort

Publications (1)

Publication Number Publication Date
EP3060817A1 true EP3060817A1 (fr) 2016-08-31

Family

ID=49447458

Family Applications (2)

Application Number Title Priority Date Filing Date
EP20130189656 Withdrawn EP2865903A1 (fr) 2013-10-22 2013-10-22 Ancrage expansible avec élément élastique
EP14784217.3A Withdrawn EP3060817A1 (fr) 2013-10-22 2014-10-14 Élément d'ancrage à expansion avec élément ressort

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP20130189656 Withdrawn EP2865903A1 (fr) 2013-10-22 2013-10-22 Ancrage expansible avec élément élastique

Country Status (5)

Country Link
US (1) US20160252121A1 (fr)
EP (2) EP2865903A1 (fr)
CN (1) CN105658966A (fr)
CA (1) CA2927957A1 (fr)
WO (1) WO2015058997A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3501742A1 (fr) * 2017-12-20 2019-06-26 HILTI Aktiengesellschaft Procédé de pose pour élément d'ancrage à expansion au moyen de la clé à percussion
EP3636939A1 (fr) * 2018-10-09 2020-04-15 Hilti Aktiengesellschaft Cheville à expansion comportant un boulon d'ancrage rainuré
CN110206336B (zh) * 2019-06-24 2021-04-27 重庆交通大学 带预压力的纤维增强复合材料锚固装置及锚固结构

Family Cites Families (12)

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Publication number Priority date Publication date Assignee Title
US3329058A (en) * 1964-04-14 1967-07-04 Cumming James Deans Tension indicating washer
GB1354958A (en) * 1970-12-28 1974-06-05 Palar Curacao Nv Anchor fastener
DE2656832A1 (de) * 1976-12-15 1978-06-22 Hilti Ag Sicherheitsscheibe
DE3022011A1 (de) 1980-06-12 1981-12-17 Heinrich 6102 Pfungstadt Liebig Duebel
DE3110537A1 (de) * 1981-03-18 1982-10-28 Brückl-Technik, Gesellschaft für technische Erzeugnisse mbH, 7903 Laichingen "verfahren zum einsetzen eines duebels und hierfuer vorgesehener duebel"
DE3142432A1 (de) * 1981-10-26 1983-05-11 Heinrich 6102 Pfungstadt Liebig "duebel mit setzkraftanzeige"
DE3331097A1 (de) 1983-08-29 1985-03-14 Hilti Ag, Schaan Vorspannbarer duebel
JPH0446211A (ja) * 1990-06-06 1992-02-17 Shinjiyou Seisakusho:Yugen ばね付きアンカーボルト
DE10106844A1 (de) * 2001-02-14 2002-09-05 Fischer Artur Werke Gmbh Spreizanker
CN2549246Y (zh) * 2002-05-28 2003-05-07 徐杰 膨胀螺丝
TWM267361U (en) * 2002-08-02 2005-06-11 Yan-Tzeng Lin Anchor nail
CN2621234Y (zh) * 2003-08-28 2004-06-23 李珊 膨胀螺栓组件

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
None *
See also references of WO2015058997A1 *

Also Published As

Publication number Publication date
CN105658966A (zh) 2016-06-08
US20160252121A1 (en) 2016-09-01
EP2865903A1 (fr) 2015-04-29
WO2015058997A1 (fr) 2015-04-30
CA2927957A1 (fr) 2015-04-30

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