WO2009122204A1 - Support anchor - Google Patents
Support anchor Download PDFInfo
- Publication number
- WO2009122204A1 WO2009122204A1 PCT/GB2009/050308 GB2009050308W WO2009122204A1 WO 2009122204 A1 WO2009122204 A1 WO 2009122204A1 GB 2009050308 W GB2009050308 W GB 2009050308W WO 2009122204 A1 WO2009122204 A1 WO 2009122204A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pivot
- retaining member
- shaft
- slot
- support anchor
- Prior art date
Links
- 238000003780 insertion Methods 0.000 claims abstract description 6
- 230000037431 insertion Effects 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 7
- 230000005611 electricity Effects 0.000 description 5
- 230000005484 gravity Effects 0.000 description 5
- 230000009194 climbing Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B1/00—Devices for lowering persons from buildings or the like
- A62B1/02—Devices for lowering persons from buildings or the like by making use of rescue cages, bags, or the like
- A62B1/04—Single parts, e.g. fastening devices
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B35/00—Safety belts or body harnesses; Similar equipment for limiting displacement of the human body, especially in case of sudden changes of motion
- A62B35/0043—Lifelines, lanyards, and anchors therefore
- A62B35/0068—Anchors
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/32—Safety or protective measures for persons during the construction of buildings
- E04G21/3261—Safety-nets; Safety mattresses; Arrangements on buildings for connecting safety-lines
- E04G21/3276—Arrangements on buildings for connecting safety-lines
-
- 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
- F16B13/0808—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 by a toggle-mechanism
Definitions
- This invention relates to a support fixture for attaching a load to a substantially vertical structure.
- Such fixtures are relevant, for example, as step bolts for electricity transmission towers.
- Electricity transmission towers are commonly constructed from a lattice of metal beams.
- climbing step bolts are typically provided at regular intervals on the legs of the tower. These are generally affixed in drilled holes in the metal beam forming the leg.
- measures are usually taken to prevent or deter unauthorized persons from climbing the tower.
- One such measure is not to fit the step bolts along the full height of the tower.
- a further anti-climb device may be fitted at the top of the initial interval.
- an authorized person In order to climb the tower, an authorized person must fit the missing step bolts into the holes at the base of the tower leg. It is common for up to ten step bolts to be needed, each of which must be secured with nuts on a threaded section of the bolt at the reverse side of the hole. Fitting this number of nuts and bolts is a time consuming and awkward task. Needless to say, when work is finished, the same number of bolts must once again be removed.
- a support anchor for temporary attachment to a substantially vertical structure, the structure having a hole
- the anchor comprising: a shaft, comprising a first end portion suitable for insertion through the hole, and restricting means disposed along the shaft at a predetermined distance from the first end, the distance being greater than a thickness of the structure, and the restricting means adapted to restrict insertion beyond that distance; and an elongate retaining member, movably connected to the first end of the shaft, having a first released configuration in which it may be threaded through the hole and a second locked configuration in which it may not; wherein the elongate retaining member comprises a slot and the first end of the shaft comprises a pivot, the pivot connected to the slot such that the elongate member is operable to slide over the pivot and, in at least the released configuration, to be freely rotatable about it.
- This support anchor is suitable for use as a transmission tower step bolt and removes the need for multiple parts (nuts and bolts) by providing an anchor with integral means of attachment.
- the retaining member can be inserted through the hole in the tower leg and clipped securely into place. The possibility of dropping the nut while trying to fit it is thus removed.
- the clamping in place of the bolt is easy and quick, and just as easily reversible when it is desired to remove the bolt. Indeed, a skilled user may be able to fit and detach the bolt single-handedly.
- the retaining member is freely rotatable about the pivot in the first released configuration and not freely rotatable about the pivot in the second locked configuration.
- the pivot end of the shaft and the slot or groove in the retaining member are arranged such that rotation is impossible when the device is clamped in place.
- the retaining member is freely rotatable, assisting the easy threading of the member and end of the shaft through the hole. This provides simple but effective operation of the device.
- the pivot may be positioned at a first end of the slot, corresponding to a first end of the retaining member.
- An end-to-end arrangement of the retaining member and the shaft can facilitate threading through the hole.
- the slot is curved and in the locked configuration the pivot is positioned at an intermediate position along the slot.
- This arrangement enables the temporary anchor to attach to existing structures of different thickness.
- the retaining member slides along the curved slot it is simultaneously rotated into the locked position.
- Different thicknesses of the structure can therefore be accounted for by different degrees of rotation, corresponding to different points along the slot and a continuum of locked positions exists.
- the retaining member essentially has at most one degree of freedom - the rotational position being determined by the curvature of the slot.
- the first end of the retaining member extends below the pivot.
- Figure 3 shows the same example anchor as the retaining member is being moved into its locked configuration
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09728567A EP2279311A1 (en) | 2008-03-31 | 2009-03-30 | Support anchor |
NZ588630A NZ588630A (en) | 2008-03-31 | 2009-03-30 | Step bolt insertable into a hole in a transmission tower with a slotted retaining member pivotable into a locked configuration |
AU2009233525A AU2009233525A1 (en) | 2008-03-31 | 2009-03-30 | Support anchor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0805777.0 | 2008-03-31 | ||
GB0805777A GB2458890B (en) | 2008-03-31 | 2008-03-31 | Support anchor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009122204A1 true WO2009122204A1 (en) | 2009-10-08 |
Family
ID=39387011
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/GB2009/050308 WO2009122204A1 (en) | 2008-03-31 | 2009-03-30 | Support anchor |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2279311A1 (en) |
AU (1) | AU2009233525A1 (en) |
GB (1) | GB2458890B (en) |
NZ (1) | NZ588630A (en) |
WO (1) | WO2009122204A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT514698B1 (en) * | 2013-11-04 | 2015-03-15 | Innotech Arbeitsschutz Gmbh | Stop device for a fall protection |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3399746A (en) * | 1966-11-28 | 1968-09-03 | Universal Pole Bracket Corp | Removable structure climbing device |
US5544717A (en) * | 1994-07-06 | 1996-08-13 | Duke Power Company | Combination step bolt and harness attachment |
US5941485A (en) * | 1997-08-01 | 1999-08-24 | Shakespeare Company | Assembly for mounting a removable step to a hollow utility pole |
WO2000068541A1 (en) | 1999-05-05 | 2000-11-16 | Bruce Raymond Mackinnon | Step or bracket device |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB190928232A (en) * | 1909-12-03 | 1910-03-31 | John Thomas Hull | An Improved Device for Securing Bolts to Traction Engine and the like Heavy Road Vehicle Wheels. |
US1963514A (en) * | 1933-05-15 | 1934-06-19 | Guy P Wherren | Form tie clamp |
US3673910A (en) * | 1968-09-09 | 1972-07-04 | Frank C Collister | Key bolt |
US3861267A (en) * | 1968-09-09 | 1975-01-21 | Frank C Collister | Key bolt |
US4196883A (en) * | 1977-12-22 | 1980-04-08 | Coats & Clark, Inc. | Hollow wall fastener |
FR2715684A1 (en) * | 1994-02-01 | 1995-08-04 | Orlando Sauveur | Sliding clamp joint with pivoting head for clamping wooden coffering in masonry works |
US5507611A (en) * | 1995-01-24 | 1996-04-16 | Collister; Frank C. | Key bolt fastener |
JP4851165B2 (en) * | 2005-11-01 | 2012-01-11 | 敬 橋口 | Scaffolding support |
DE102006052664A1 (en) * | 2006-11-07 | 2008-05-08 | Ulrich Louis | Support console attaching device for building wall, has part including slotted hole of lug that is harder than complete part, round steel bar including threaded hole at slot, and clamping spindle screwed with clamping nut |
-
2008
- 2008-03-31 GB GB0805777A patent/GB2458890B/en active Active
-
2009
- 2009-03-30 EP EP09728567A patent/EP2279311A1/en not_active Withdrawn
- 2009-03-30 WO PCT/GB2009/050308 patent/WO2009122204A1/en active Application Filing
- 2009-03-30 NZ NZ588630A patent/NZ588630A/en not_active IP Right Cessation
- 2009-03-30 AU AU2009233525A patent/AU2009233525A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3399746A (en) * | 1966-11-28 | 1968-09-03 | Universal Pole Bracket Corp | Removable structure climbing device |
US5544717A (en) * | 1994-07-06 | 1996-08-13 | Duke Power Company | Combination step bolt and harness attachment |
US5941485A (en) * | 1997-08-01 | 1999-08-24 | Shakespeare Company | Assembly for mounting a removable step to a hollow utility pole |
WO2000068541A1 (en) | 1999-05-05 | 2000-11-16 | Bruce Raymond Mackinnon | Step or bracket device |
Non-Patent Citations (1)
Title |
---|
See also references of EP2279311A1 * |
Also Published As
Publication number | Publication date |
---|---|
GB0805777D0 (en) | 2008-04-30 |
EP2279311A1 (en) | 2011-02-02 |
GB2458890B (en) | 2011-10-19 |
AU2009233525A1 (en) | 2009-10-08 |
NZ588630A (en) | 2012-03-30 |
GB2458890A (en) | 2009-10-07 |
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