WO1995022007A1 - Spreizdübel - Google Patents
Spreizdübel Download PDFInfo
- Publication number
- WO1995022007A1 WO1995022007A1 PCT/EP1994/004079 EP9404079W WO9522007A1 WO 1995022007 A1 WO1995022007 A1 WO 1995022007A1 EP 9404079 W EP9404079 W EP 9404079W WO 9522007 A1 WO9522007 A1 WO 9522007A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- expansion
- dowel
- inner bore
- diameter
- pin
- Prior art date
Links
- 239000002184 metal Substances 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- 238000006073 displacement reaction Methods 0.000 claims description 2
- 238000003780 insertion Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract description 2
- 239000004566 building material Substances 0.000 description 7
- 238000003892 spreading Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/22—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip
- B22F3/225—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces for producing castings from a slip by injection molding
-
- 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
- F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
-
- 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
- F16B13/12—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like
- F16B13/124—Separate metal or non-separate or non-metal dowel sleeves fastened by inserting the screw, nail or the like fastened by inserting a threaded element, e.g. screw or bolt
Definitions
- the invention relates to an expansion dowel with an inner bore completely penetrating the dowel body for driving in a nail-shaped or screw-shaped expansion pin, and a method for its production from metal.
- expansion anchors made of plastic are well known.
- the inner bore of these expansion anchors usually runs axially parallel and tapers towards the front end of the dowel.
- these expansion dowels In the area of the tapered inner bore, these expansion dowels have longitudinal slots in order to allow expansion when the expansion pin is driven in.
- the tapered inner bore ends in a split, the clear width of which corresponds to the slot width.
- This very strong tapering of the inner bore requires a high drive-in resistance, which under certain circumstances prevents the expansion pin from being completely driven in when using the known dowels in hard building materials.
- none of that high driving resistance achieved adequate holding force.
- the invention has for its object to provide an anchor which can be anchored with a nail-shaped or screw-shaped expansion pin and which, with low driving resistance, enables high holding forces in both soft and porous as well as in hard building materials.
- the helically wound inner bore around the central axis of the expansion anchor achieves an eccentricity which changes sinusoidally to the length of the expansion anchor and which additionally rotates about the central axis.
- the cylindrical expansion pin thus causes expansion at each point of the expansion plug in accordance with the eccentricity of the inner bore at this point to the outer circumference of the expansion plug. Because of the inner bore penetrating the dowel body as a convoluted column, the diameter thus results even with a diameter corresponding to the outer diameter of the expansion pin
- Inner bore is a spreading action which acts in a helical manner on the outer circumference of the expansion dowel and generates a uniform spreading force distributed over the entire circumference while avoiding stress peaks. Due to the same or only slightly smaller diameter of the inner bore compared to the outer diameter of the expansion pin, the expansion is very small
- the expansion plug according to the invention is suitable for anchoring in all building materials, by avoiding stress peaks and the spreading action being distributed uniformly over the entire length of the expansion plug, particularly for use in soft and porous building materials. 5 * For solid building materials, a slight increase in the spreading effect in the depth of the borehole is advisable to increase the pull-out force. This can be achieved in a simple manner in that the diameter of the inner bore at the rear end of the dowel is approximately equal to the outer diameter of the expansion pin and tapers uniformly towards the front end of the dowel to a diameter which is smaller than that
- longitudinal slots can be arranged in sections and offset to one another on the circumference and in the longitudinal direction, the offset of the longitudinal slots on the circumference preferably being 90 ° in each case.
- the longitudinal slots can either be axially parallel or helical
- the inner bore with at least one groove running along its surface line into which a thread arranged on the nail-shaped expansion pin 0 engages. One enters through this thread
- the expansion anchor according to the invention is usually made of a plastic by injection molding.
- the expansion plug according to the invention can also be made of metal.
- the production then takes place in the known. Metal injection molding process. After this procedure, the expansion anchor is made of metal powder produced by injection molding using a binder system and subsequent debinding and sintering.
- FIG. 1 the expansion dowel with a nail-shaped expansion pin
- FIG. 2 shows the expansion anchor anchored in the borehole of a masonry according to FIG. 1,
- Figure 4 shows a cross section along the section line A-A indicated in Figure 3.
- the expansion dowel 1 shown in FIG. 1 has an inner bore 2 which, in a helical manner about the central axis 3, completely penetrates the dowel body.
- the diameter of the internal bore 2 corresponds approximately to the outside diameter of the expansion bolt 4.
- the expansion effect of the anchor 1 when driving the spreader pin 4 into the spiral internal bore 2 is achieved in that a widget on the length of the expansible fixing plug sinusoidally varying by the spiral inner bore
- Eccentricity e to the central axis 3 results.
- the respective eccentricity at a certain point causes a bulge 6 at the opposite point, which is helical on the outer circumference of the expansion anchor (see FIG. 2).
- these bulges 6 are pressed into the wall of the borehole 7.
- the expansion pin 4 used in Figures 1 and 2 has a collar 8 to limit the
- Penetration depth and a connecting thread 9 for example for fastening a wire suspension for pipes, cable ducts or the like. Due to the tensile force acting on the expansion pin, the expansion pin 4 could be pulled out of the inner bore 2 of the dowel 1.
- the inner bore 2 of the expansion dowel 1 ° is provided with two grooves 10 lying opposite one another and running along the surface line of the inner bore.
- the two opposing threads 11 on the expansion pin 4 engage in the grooves 10 of the inner bore 2. This results in a toothing between the expansion pin 4 and the expansion plug 1, which prevents the expansion of the 5 expansion pin 4 by an axial tensile force.
- To limit the insertion is the
- Dowel 1 is provided with an edge 12 and to prevent rotation with longitudinal ribs 13 extending from the edge 12.
- the winding inner bore 2 at the rear end of the dowel has a diameter D1 which is approximately the outer diameter of the one used in this exemplary embodiment
- Fastening screw 14 corresponds to an expansion pin. Up to the front dowel end 15, the inner bore 2 tapers to the diameter D2, which is the same or slightly larger than the core diameter of the fastening screw 14. This in addition to the helical bulge of the dowel when screwing in
- the expansion dowel 1 is provided with a plurality of longitudinal slots 16.
- the longitudinal slots 16 are arranged in sections and offset on the circumference and in the longitudinal direction to each other.
- the displacement is 90 ° and the
- Longitudinal slots 16 are overlapped in such a way that at least two longitudinal slots are present at each point of the dowel. Furthermore, the longitudinal slots can be arranged in a helical manner parallel to the inner bore 2.
- the expansion dowel 1 is made of plastic using the injection molding process and of metal in the metal injection molding process, which is also known per se. In this process, the dowel is made of metal powder by injection molding using a binder system and subsequent debinding and sintering.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dowels (AREA)
- Joining Of Building Structures In Genera (AREA)
- Fishing Rods (AREA)
- Cell Separators (AREA)
- Portable Nailing Machines And Staplers (AREA)
- Clamps And Clips (AREA)
- Piles And Underground Anchors (AREA)
- Glass Compositions (AREA)
- Insulators (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL94310402A PL174289B1 (pl) | 1994-02-08 | 1994-12-08 | Kołek rozprężny |
BR9405919A BR9405919A (pt) | 1994-02-08 | 1994-12-08 | Bucha de expansão |
DE59407305T DE59407305D1 (de) | 1994-02-08 | 1994-12-08 | Spreizdübel |
SK1232-95A SK123295A3 (en) | 1994-02-08 | 1994-12-08 | Expanding plug |
EP95903328A EP0693162B1 (de) | 1994-02-08 | 1994-12-08 | Spreizdübel |
KR1019950704333A KR960702068A (ko) | 1994-02-08 | 1994-12-08 | 팽창성 고정플러그 및 그 제조방법(Expanding plug) |
NO953998A NO953998L (no) | 1994-02-08 | 1995-10-06 | Ekspansjonsplugg |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP4403894.1 | 1994-02-08 | ||
DE4403894A DE4403894A1 (de) | 1994-02-08 | 1994-02-08 | Spreizdübel |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1995022007A1 true WO1995022007A1 (de) | 1995-08-17 |
Family
ID=6509758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1994/004079 WO1995022007A1 (de) | 1994-02-08 | 1994-12-08 | Spreizdübel |
Country Status (21)
Country | Link |
---|---|
US (1) | US5655864A (de) |
EP (1) | EP0693162B1 (de) |
JP (1) | JP2851440B2 (de) |
KR (1) | KR960702068A (de) |
CN (1) | CN1117563A (de) |
AT (1) | ATE173526T1 (de) |
BR (1) | BR9405919A (de) |
CA (1) | CA2158755A1 (de) |
CZ (1) | CZ260395A3 (de) |
DE (2) | DE4403894A1 (de) |
ES (1) | ES2126244T3 (de) |
HR (1) | HRP950020A2 (de) |
HU (1) | HUT73277A (de) |
NO (1) | NO953998L (de) |
PL (1) | PL174289B1 (de) |
RU (1) | RU2112898C1 (de) |
SI (1) | SI9420009A (de) |
SK (1) | SK123295A3 (de) |
WO (1) | WO1995022007A1 (de) |
YU (1) | YU5395A (de) |
ZA (1) | ZA9410314B (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2960339B2 (ja) | 1995-10-17 | 1999-10-06 | 若井産業株式会社 | ビス固定補助具 |
US6254325B1 (en) | 2000-01-28 | 2001-07-03 | Steve Kun | Anchor assembly for a wall, floor or like supporting structure |
JP2015102166A (ja) * | 2013-11-25 | 2015-06-04 | 富士重工業株式会社 | 固定具および固定構造 |
US10337095B2 (en) | 2015-08-12 | 2019-07-02 | Ford Motor Company | Method and device of surface-treating a metallic part |
US10344790B2 (en) * | 2016-02-18 | 2019-07-09 | Illinois Tool Works Inc. | Masonry anchor of the expansion type |
CN106351932A (zh) * | 2016-10-26 | 2017-01-25 | 广州市中标螺丝制造有限公司 | 一种面板连接螺钉 |
US20230258216A1 (en) * | 2022-02-11 | 2023-08-17 | The Boeing Company | Blind fasteners and associated systems and methods for installing blind fasteners |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190925148A (en) * | 1908-11-04 | 1910-10-27 | Georges Lakhovsky | Improvements in Liners for Fixing Screw Spikes in Railway Sleepers. |
DE3018975A1 (de) * | 1980-05-17 | 1981-11-26 | Groh, Karl-Friedrich, 7118 Künzelsau | Befestigungssatz |
EP0054681A1 (de) * | 1980-12-23 | 1982-06-30 | Fischerwerke Arthur Fischer GmbH & Co. KG | Aus einem Kunststoff-Spreizdübel und einer Befestigungsschraube bestehender Befestigungssatz |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB323583A (en) * | 1928-10-20 | 1930-01-09 | John Joseph Rawlings | Improvements relating to tubular wall plugs |
DE2759958C2 (de) * | 1976-07-07 | 1987-10-22 | Arnold Kappel Ch Schefer | |
US4135432A (en) * | 1977-11-21 | 1979-01-23 | Drillco Equipment Company, Inc. | Anchor for undercut bore |
AT365750B (de) * | 1978-08-30 | 1982-02-10 | Fischer Artur Dr H C | Aus spreizduebel und befestigungsschraube bestehender befestigungssatz |
DE2901066C2 (de) * | 1979-01-12 | 1981-03-19 | TOX-Dübel-Werk Richard W. Heckhausen KG, 7762 Bodmann-Ludwigshafen | Spreizdübel |
DE3116424A1 (de) * | 1981-04-24 | 1982-11-11 | Hilti AG, 9494 Schaan | Duebel |
DE3308755A1 (de) * | 1983-03-11 | 1984-09-13 | Hilti Ag, Schaan | Kunststoffspreizduebel |
US4710223A (en) * | 1986-03-21 | 1987-12-01 | Rockwell International Corporation | Infiltrated sintered articles |
DE3910702A1 (de) * | 1989-04-03 | 1990-10-04 | Guenter Oldendorf | Mehrteiliger duebel |
DE3917498A1 (de) * | 1989-05-30 | 1990-12-06 | Hilti Ag | Kunststoff-spreizduebel |
FR2682725B1 (fr) * | 1991-10-16 | 1995-02-24 | Prospection & Inventions | Cheville pour fixation d'une piece a une paroi support de faible epaisseur. |
-
1994
- 1994-02-08 DE DE4403894A patent/DE4403894A1/de not_active Withdrawn
- 1994-12-08 BR BR9405919A patent/BR9405919A/pt not_active Application Discontinuation
- 1994-12-08 CZ CZ952603A patent/CZ260395A3/cs unknown
- 1994-12-08 RU RU95117985A patent/RU2112898C1/ru active
- 1994-12-08 CA CA002158755A patent/CA2158755A1/en not_active Abandoned
- 1994-12-08 ES ES95903328T patent/ES2126244T3/es not_active Expired - Lifetime
- 1994-12-08 HU HU9502286A patent/HUT73277A/hu unknown
- 1994-12-08 SI SI9420009A patent/SI9420009A/sl unknown
- 1994-12-08 WO PCT/EP1994/004079 patent/WO1995022007A1/de not_active Application Discontinuation
- 1994-12-08 EP EP95903328A patent/EP0693162B1/de not_active Expired - Lifetime
- 1994-12-08 KR KR1019950704333A patent/KR960702068A/ko not_active Application Discontinuation
- 1994-12-08 SK SK1232-95A patent/SK123295A3/sk unknown
- 1994-12-08 PL PL94310402A patent/PL174289B1/pl unknown
- 1994-12-08 DE DE59407305T patent/DE59407305D1/de not_active Expired - Fee Related
- 1994-12-08 AT AT95903328T patent/ATE173526T1/de not_active IP Right Cessation
- 1994-12-08 JP JP7520922A patent/JP2851440B2/ja not_active Expired - Lifetime
- 1994-12-27 ZA ZA9410314A patent/ZA9410314B/xx unknown
-
1995
- 1995-01-16 HR HRP4403894.1A patent/HRP950020A2/hr not_active Application Discontinuation
- 1995-01-31 YU YU5395A patent/YU5395A/sh unknown
- 1995-02-08 CN CN95101748A patent/CN1117563A/zh active Pending
- 1995-08-10 US US08/507,221 patent/US5655864A/en not_active Expired - Fee Related
- 1995-10-06 NO NO953998A patent/NO953998L/no unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190925148A (en) * | 1908-11-04 | 1910-10-27 | Georges Lakhovsky | Improvements in Liners for Fixing Screw Spikes in Railway Sleepers. |
DE3018975A1 (de) * | 1980-05-17 | 1981-11-26 | Groh, Karl-Friedrich, 7118 Künzelsau | Befestigungssatz |
EP0054681A1 (de) * | 1980-12-23 | 1982-06-30 | Fischerwerke Arthur Fischer GmbH & Co. KG | Aus einem Kunststoff-Spreizdübel und einer Befestigungsschraube bestehender Befestigungssatz |
Also Published As
Publication number | Publication date |
---|---|
ZA9410314B (en) | 1995-08-05 |
PL310402A1 (en) | 1995-12-11 |
EP0693162B1 (de) | 1998-11-18 |
NO953998D0 (no) | 1995-10-06 |
BR9405919A (pt) | 1995-12-19 |
SI9420009A (en) | 1995-12-31 |
HU9502286D0 (en) | 1995-12-28 |
NO953998L (no) | 1995-12-08 |
HRP950020A2 (en) | 1997-02-28 |
ES2126244T3 (es) | 1999-03-16 |
CA2158755A1 (en) | 1995-08-17 |
DE4403894A1 (de) | 1995-08-10 |
RU2112898C1 (ru) | 1998-06-10 |
PL174289B1 (pl) | 1998-07-31 |
US5655864A (en) | 1997-08-12 |
SK123295A3 (en) | 1996-03-06 |
HUT73277A (en) | 1996-07-29 |
CN1117563A (zh) | 1996-02-28 |
EP0693162A1 (de) | 1996-01-24 |
DE59407305D1 (de) | 1998-12-24 |
ATE173526T1 (de) | 1998-12-15 |
KR960702068A (ko) | 1996-03-28 |
JP2851440B2 (ja) | 1999-01-27 |
CZ260395A3 (en) | 1996-02-14 |
JPH08504025A (ja) | 1996-04-30 |
YU5395A (sh) | 1997-08-22 |
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