ZA201907326B - Groutable friction rock bolt - Google Patents
Groutable friction rock boltInfo
- Publication number
- ZA201907326B ZA201907326B ZA2019/07326A ZA201907326A ZA201907326B ZA 201907326 B ZA201907326 B ZA 201907326B ZA 2019/07326 A ZA2019/07326 A ZA 2019/07326A ZA 201907326 A ZA201907326 A ZA 201907326A ZA 201907326 B ZA201907326 B ZA 201907326B
- Authority
- ZA
- South Africa
- Prior art keywords
- sleeve
- rod
- formation
- expansion element
- projecting portion
- Prior art date
Links
- 239000011435 rock Substances 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 abstract 4
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
-
- 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
- F16B13/08—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 with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation
- F16B13/0858—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 with separate or non-separate gripping parts moved into their final position in relation to the body of the device without further manual operation with an expansible sleeve or dowel body driven against a tapered or spherical expander plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides a friction bolt assembly which includes: an expansible tubular sleeve longitudinally extending between a leading end and a trailing end, having a longitudinally extending formation, about which the sleeve resiliently deforms; a rod which longitudinally extends through the sleeve between a first end and a second end and which has a projecting portion which extends from the trailing end of the sleeve to the second end; an expansion element mounted on or integrally formed with the rod at or towards the first end; a wedge formation on an inside surface of the sleeve positioned to engage the expansion element; a load applicator engaged with the projecting portion between a load bearing washer and the second end of the rod; and a stop formation engaged with the rod, within the sleeve, in a position which abuts the wedge formation, when an axially directed force is applied to the second end of the rod, to transfer the force to the sleeve to pull the sleeve along with the rod; and which holds the sleeve in position, relatively to the rod, when the load applicator is actuated to draw the expansion element into the sleeve to radially expand the sleeve.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ZA201807375 | 2018-11-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA201907326B true ZA201907326B (en) | 2023-09-27 |
Family
ID=68807383
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA2019/07326A ZA201907326B (en) | 2018-11-05 | 2019-11-05 | Groutable friction rock bolt |
Country Status (2)
Country | Link |
---|---|
WO (1) | WO2020097634A1 (en) |
ZA (1) | ZA201907326B (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19936090A1 (en) * | 1999-07-30 | 2001-02-01 | Fischer Artur Werke Gmbh | Metal fastener |
AU2015403063B2 (en) | 2015-07-21 | 2020-12-17 | Epiroc Drilling Tools Ab | Radially expansible rock bolt |
-
2019
- 2019-11-05 ZA ZA2019/07326A patent/ZA201907326B/en unknown
- 2019-11-05 WO PCT/ZA2019/050068 patent/WO2020097634A1/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2020097634A1 (en) | 2020-05-14 |
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