FR2431057A1 - Radially expanding plug for fixing screw in masonry bore - has axial V=grooves in bore and barrel, with former having radial and tangential walls - Google Patents
Radially expanding plug for fixing screw in masonry bore - has axial V=grooves in bore and barrel, with former having radial and tangential wallsInfo
- Publication number
- FR2431057A1 FR2431057A1 FR7820630A FR7820630A FR2431057A1 FR 2431057 A1 FR2431057 A1 FR 2431057A1 FR 7820630 A FR7820630 A FR 7820630A FR 7820630 A FR7820630 A FR 7820630A FR 2431057 A1 FR2431057 A1 FR 2431057A1
- Authority
- FR
- France
- Prior art keywords
- bore
- grooves
- tangential
- walls
- barrel
- 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
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- 239000011800 void material Substances 0.000 abstract 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
- F16B13/02—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose in one piece with protrusions or ridges on the shaft
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
Abstract
The plug comprises a sleeve with five or six grooves in both the bore and the barrel. the plug is of relatively rigid and inelastic synthetic material, the grooves running parallel to the axis of revolution, and the core void taking the form of a ratchet wheel in cross section. Each groove is thus, of a ratchet tooth section with a radial (3) and a tangential (4) wall, its edges locating on an inner circle (1). An angle of 30 deg. is subtended by the walls (3, 4) of each groove, a trapezoidal section tooth (8) being built onto the back of each tangential wall (4), and the walls otherwise being of uniform thickness. The geometry is such that max wall thickness centres (9) on the tangential walls (4), with a min applying between bore grooves.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7820630A FR2431057A1 (en) | 1978-07-11 | 1978-07-11 | Radially expanding plug for fixing screw in masonry bore - has axial V=grooves in bore and barrel, with former having radial and tangential walls |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7820630A FR2431057A1 (en) | 1978-07-11 | 1978-07-11 | Radially expanding plug for fixing screw in masonry bore - has axial V=grooves in bore and barrel, with former having radial and tangential walls |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2431057A1 true FR2431057A1 (en) | 1980-02-08 |
FR2431057B1 FR2431057B1 (en) | 1985-01-25 |
Family
ID=9210581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7820630A Granted FR2431057A1 (en) | 1978-07-11 | 1978-07-11 | Radially expanding plug for fixing screw in masonry bore - has axial V=grooves in bore and barrel, with former having radial and tangential walls |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2431057A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7029221B2 (en) | 2002-08-01 | 2006-04-18 | Newfrey Llc | Sleeve device with internal fins for holding a piece such as a bolt in a bore |
US7029219B2 (en) | 2002-08-01 | 2006-04-18 | Newfrey Llc | Device, assembly, and method for holding a piece in a bore |
US7073997B2 (en) | 2002-10-02 | 2006-07-11 | Newfrey Llc | Apparatus and method for holding a piece in a bore |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR80125E (en) * | 1958-09-09 | 1963-03-15 | Rawlplug Co Ltd | Wall stamp |
FR1342704A (en) * | 1962-05-24 | 1963-11-08 | Expansion anchor |
-
1978
- 1978-07-11 FR FR7820630A patent/FR2431057A1/en active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR80125E (en) * | 1958-09-09 | 1963-03-15 | Rawlplug Co Ltd | Wall stamp |
FR1342704A (en) * | 1962-05-24 | 1963-11-08 | Expansion anchor |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7029221B2 (en) | 2002-08-01 | 2006-04-18 | Newfrey Llc | Sleeve device with internal fins for holding a piece such as a bolt in a bore |
US7029219B2 (en) | 2002-08-01 | 2006-04-18 | Newfrey Llc | Device, assembly, and method for holding a piece in a bore |
US7073997B2 (en) | 2002-10-02 | 2006-07-11 | Newfrey Llc | Apparatus and method for holding a piece in a bore |
US8020278B2 (en) | 2002-10-02 | 2011-09-20 | Newfrey Llc | Method for holding a piece in a bore |
Also Published As
Publication number | Publication date |
---|---|
FR2431057B1 (en) | 1985-01-25 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |