CA2353728A1 - Wedge anchor for concrete - Google Patents
Wedge anchor for concrete Download PDFInfo
- Publication number
- CA2353728A1 CA2353728A1 CA002353728A CA2353728A CA2353728A1 CA 2353728 A1 CA2353728 A1 CA 2353728A1 CA 002353728 A CA002353728 A CA 002353728A CA 2353728 A CA2353728 A CA 2353728A CA 2353728 A1 CA2353728 A1 CA 2353728A1
- Authority
- CA
- Canada
- Prior art keywords
- expansion
- hole
- expander
- leading
- wedge 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract 5
- 238000003780 insertion Methods 0.000 claims abstract 4
- 230000037431 insertion Effects 0.000 claims abstract 4
- 230000013011 mating Effects 0.000 claims 2
- 230000002787 reinforcement Effects 0.000 claims 2
- 235000012054 meals Nutrition 0.000 claims 1
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
- F16B13/065—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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
- E21D21/008—Anchoring or tensioning means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
- Piles And Underground Anchors (AREA)
Abstract
An expansion wedge anchor (80) for insertion in a hole (H) delimited by a wall comprises an expander member (32) and an expansion number (34), the expander member being provided at a leading end of the expander member, the expander member comprising a flaring end (40), the expansion member being expandable at a trailing end (48) thereof and being adapted to engage the wall of the hole when the expander member is positioned in the hole, wherein upon longitudinal withdrawal of the expander member from the hole, the expander member displaces longitudinally relative to the expansion member with the flaring end thereof gradually causing the trailing end of the expansion member to expand, whereby a trailing edge of the expansion member engages the wall of the hole. The trailing end is adapted, when expanded by the flaring member, to extend at an angle with respect to a longitudinal axis of said expander member. In the method of setting the expansion wedge anchor in the hole, the following steps are found: (a) providing an expander member and an expansion member; and (b) displacing the expander member such as to cause a trailing end of the expander member to engage the wall of the hole.
Claims (29)
1. An expansion wedge anchor for insertion in a hole delimited by a wall, comprising an expander means and an expansion means, said expansion means being provided at a leading end of said expander means, said expander means comprising flaring means, said expansion means being expandable at a trailing end thereof and being adapted to engage the wall of the hole when said expander means is positioned in the hole, wherein upon longitudinal withdrawal of said expander means from the hole, said expander means displaces longitudinally relative to said expansion means with said flaring means thereof gradually causing said trailing end of said expansion means to expand, whereby a trailing edge of said expansion means engages the wall of the hole.
2. An expansion wedge anchor as defined in Claim 1, wherein said trailing end is adapted, when expanded by said flaring means, to extend at an angle with respect to a longitudinal axis of said expander means and to so engage the wall of the hole, and wherein said expander means and said expansion means are each made of a single unitary component.
3. An expansion wedge anchor as defined in Claims 1 and 2, wherein said expander means comprise proximally of said flaring means a threaded section adapted to be engaged, at a proximal end thereof outside of the hole, by a female threaded member which when rotated causes said expander means to displace translationally along the hole.
4. An expansion wedge anchor as defined in Claims 1 to 3, wherein said flaring means comprise a flared end which tapers towards said threaded section, an intermediate section being provided proximally of said flared end and having a diameter less than that of said threaded section, said intermediate section providing space to accommodate outwardly thereof at least part said expansion means in a collapsed position thereof at least for during insertion of said anchor in the hole.
5. An expansion wedge anchor as defined in Claims 1 to 4, wherein said expander means defines a shoulder at a junction of said threaded section and said intermediate section for preventing said expansion means from reaching threaded section.
6. An expansion wedge anchor as defined in Claims 1 to 5, wherein said expansion means comprises a leading support located distally past said leading end, an expandable collar means provided proximally of said leading support and at least one leg means extending outwardly of said expander means and connecting said collar means to said leading support, said collar means defining said trailing edge and being adapted to be outwardly expanded by said flaring means wherein said collar means is angled relative to a longitudinal axis of the hole, said collar means flaring from a distal end thereof toward a proximal end thereof, said proximal end defining said trailing edge, whereby said collar means engages the wall of the hole more deeply proximally than distally.
7. An expansion wedge anchor as defined in Claim 6, wherein said collar means defines a longitudinal split for each said leg means.
8. An expansion wedge anchor as defined in Claim 7, wherein said expansion means comprise two diametrically opposed leg means, said collar means comprising two splits and thereby forming two distinct segments each connected to a respective leg means.
9. An expansion wedge anchor as defined in Claim 7, wherein said expansion means comprise three equidistant leg means, said collar means comprising three splits and thereby forming three similar distinct segments each connected to a respective leg means.
10. An expansion wedge anchor as defined in Claims 7 to 9, wherein at each said split, facing edges of said collar means define cooperating mating means.
11. An expansion wedge anchor as defined in Claim 10, wherein said cooperating mating means comprise tongue and groove elements provided transversally on respective ones of said facing edges.
12. An expansion wedge anchor as defined in Claims 6 to 11, wherein said flaring means define a recessed longitudinal guide for each said leg means for preventing said expansion means from rotating with respect to said expander means.
13. An expansion wedge anchor as defined in Claims 6 to 12, wherein each said leg means is provided with a reinforcement, and wherein said leading support comprises a concave distal land.
14. An expansion wedge anchor as defined in Claims 6 to 13, wherein each said leg means defines rounded merging areas where joining said collar means and said leading support.
15. An expansion wedge anchor as defined in Claims 1 to 3, wherein said flaring means comprise a trailing flared portion. which tapers away from said threaded section and which is adapted to expand said trailing end of said expansion meals such that said trailing edge thereof engages the wall of the hole, wherein said expansion means is adapted to rotate with said expander means, whereby upon rotation of said expander means said trailing edge of said expansion means defines an undercut in the wall of the hole and subsequently remains lodged in said undercut.
16. An expansion wedge anchor as defined in Claim 15, wherein said flaring means further comprise an intermediate portion being provided distally of said trailing flared portion and having a diameter less than that of said threaded section, said intermediate portion providing space to accommodate outwardly thereof at least part said expansion means in a collapsed position thereof at least for during insertion of said anchor in the hole.
17. An expansion wedge anchor as defined in Claims 15 and 16, wherein said expander means comprise proximally, for access outside of the hole when said expansion means is located in the hole, a drive means engageable by a tool for rotating said expander means and said expansion means.
18. An expansion wedge anchor as defined in Claims 15 to 17, wherein said expander means further comprises a leading flared portion tapering towards said threaded section, said intermediate portion extending between said leading and trailing flared portions, wherein said leading flared portion is adapted to expand a leading end of said expansion means.
19. An expansion wedge anchor as defined in Claims 18, wherein, once said undercut has been formed in the wall of the hole by a rotation of said trailing edge, said expander means is adapted to be translationally withdrawn from the hole such that said leading flared portion engages and expands said leading end of said expansion means such as to engage the hole, a leading edge of said leading end of said expansion means extending into the wall.
20. An expansion wedge anchor as defined in Claim 19, wherein said leading end of said expansion means extends at an angle with respect to the longitudinal axis of said expander means and so engages the wall of the hole.
21. An expansion wedge anchor as defined in Claims 18 to 20, wherein said expansion means comprise an expendable collar means defining said trailing and leading ends and said trailing and leading edges, a leading support provided distally of said collar means, and at least one leg means extending outwardly of said expander means and connecting said collar means to said leading support, said collar means being adapted to be outwardly expanded by said trailing flared portion wherein said trailing end of said collar means is angled relative to a longitudinal axis of the hole, said collar means being adapted to be outwardly expanded by said leading flared portion wherein said leading end of said collar means is angled relative to the longitudinal axis of the hole.
22. An expansion wedge anchor as defined in Claim 21, wherein said collar means defines at least one longitudinal split.
23. An expansion wedge anchor as defined in Claim 22, wherein said expansion means comprise two diametrically opposed leg means, said collar means comprising two splits and thereby forming two distinct segments each connected to a respective leg means.
24. An expansion wedge anchor as defined in Claim 21, wherein said leading and trailing flared portions of said expander means define leading and trailing recessed longitudinal guides which respectively engage said leg means and tab means provided proximally at said trailing end of said expansion means, thereby preventing said expansion means from rotating with respect to said expander means.
25. An expansion wedge anchor as defined in Claim 21, wherein each said leg means is provided with a reinforcement, and wherein said leading support comprises a low friction leading end.
26. A method of setting an expansion wedge anchor in a hole delimited by a wall, comprising the steps of: (a) providing an expander member and an expansion member; and (b) displacing said expander member such as to cause a trailing end of said expansion member to engage the wall of the hole.
27. A method as defined in Claim 26, wherein in step (b) said trailing end is expanded such as to extend at an angle with respect to a longitudinal axis of said expander member.
28. A method as defined in Claims 26 and 27, wherein after step (b), step (c) consists of rotating said expander member and said expansion member from outside of the hole such that the trailing end of said expansion member forms an undercut in the wall of the hole and remains lodged therein.
29. A method as defined in Claim 28, wherein after step (c), step (d) consists of displacing said expander member relative to said expansion member such as to cause a leading end of said expansion member to engage the wall of the hole.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11053098P | 1998-12-01 | 1998-12-01 | |
| US60/110,530 | 1998-12-01 | ||
| PCT/CA1999/001129 WO2000032946A1 (en) | 1998-12-01 | 1999-12-01 | Wedge anchor for concrete |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2353728A1 true CA2353728A1 (en) | 2000-06-08 |
| CA2353728C CA2353728C (en) | 2010-10-19 |
Family
ID=22333538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2353728A Expired - Fee Related CA2353728C (en) | 1998-12-01 | 1999-12-01 | Wedge anchor for concrete |
Country Status (3)
| Country | Link |
|---|---|
| AU (1) | AU1369100A (en) |
| CA (1) | CA2353728C (en) |
| WO (1) | WO2000032946A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131289A1 (en) * | 2014-03-07 | 2015-09-11 | Robert Cousineau | Expansion anchor |
| CN110984396A (en) * | 2019-12-24 | 2020-04-10 | 福州鼓楼纹英建筑工程有限责任公司 | Rear-mounted anchor net and operation method thereof |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10038615A1 (en) * | 2000-08-08 | 2002-02-21 | Fischer Artur Werke Gmbh | expansion anchor |
| US6835036B2 (en) | 2003-03-07 | 2004-12-28 | Illinois Tool Works Inc. | Concrete anchor |
| DE10340674A1 (en) * | 2003-09-04 | 2005-03-31 | Fischerwerke Artur Fischer Gmbh & Co. Kg | Plug for anchoring bolts in concrete has sleeve which slides down over spreading section of same external diameter with two recesses, into which connecting strips on sleeve fit |
| US11371242B2 (en) * | 2020-02-07 | 2022-06-28 | Joshua MAY | Machine walls |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2647431A (en) | 1950-02-15 | 1953-08-04 | Ohio Brass Co | Expansion bolt |
| US2783673A (en) | 1953-03-30 | 1957-03-05 | Ohio Brass Co | Expander nut having three surfaces of different inclination |
| US2787931A (en) * | 1953-05-29 | 1957-04-09 | Republic Steel Corp | Mine roof bolts with multiple piece shell having u-shaped spring holding means |
| FR1121145A (en) * | 1955-02-05 | 1956-07-23 | Anchor head especially for support rods used in mines | |
| FR1327260A (en) * | 1962-04-06 | 1963-05-17 | Anchoring device, in particular for stabilizing mine roofs | |
| US3250170A (en) | 1964-03-09 | 1966-05-10 | Norman H Siegel | Expansion shell |
| US3324756A (en) * | 1965-06-25 | 1967-06-13 | Chester I Williams | Bail-type anchor device for a hollow rock bolt |
| US3620120A (en) | 1969-05-01 | 1971-11-16 | Richard H Warner | Mine roof bolt assembly |
| DE2256822A1 (en) * | 1972-11-20 | 1974-06-06 | Manfred Dipl Ing Jost | ANCHORS, IN PARTICULAR DOWELS |
| FR2349759A1 (en) * | 1976-05-14 | 1977-11-25 | Itt | Anchor bolt with expanding sleeve - has conical shoulder to provide reaction force on end of sleeve |
| US4100748A (en) * | 1977-01-07 | 1978-07-18 | Stratabolt Corporation | Mine roof or rock bolt expansion anchor of the bail type |
| US4337012A (en) | 1979-04-25 | 1982-06-29 | Heinrich Sohnius | Anchor bolt expansion shell |
| US4403894A (en) | 1981-02-09 | 1983-09-13 | The Eastern Company | Rock bolt expansion anchor having windened expansion range |
| US5028188A (en) | 1990-06-18 | 1991-07-02 | The Eastern Company | Expansion bolt |
| US5352066A (en) | 1991-11-26 | 1994-10-04 | The Eastern Company | Mine roof/bolt anchor assembly and method of installation thereof |
| US5344257A (en) | 1992-12-02 | 1994-09-06 | The Eastern Company | Mine roof expansion anchor and bail element |
-
1999
- 1999-12-01 AU AU13691/00A patent/AU1369100A/en not_active Abandoned
- 1999-12-01 CA CA2353728A patent/CA2353728C/en not_active Expired - Fee Related
- 1999-12-01 WO PCT/CA1999/001129 patent/WO2000032946A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015131289A1 (en) * | 2014-03-07 | 2015-09-11 | Robert Cousineau | Expansion anchor |
| CN110984396A (en) * | 2019-12-24 | 2020-04-10 | 福州鼓楼纹英建筑工程有限责任公司 | Rear-mounted anchor net and operation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CA2353728C (en) | 2010-10-19 |
| AU1369100A (en) | 2000-06-19 |
| WO2000032946A1 (en) | 2000-06-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20121203 |