WO2005071276A1 - Protective covers - Google Patents
Protective covers Download PDFInfo
- Publication number
- WO2005071276A1 WO2005071276A1 PCT/GB2004/005226 GB2004005226W WO2005071276A1 WO 2005071276 A1 WO2005071276 A1 WO 2005071276A1 GB 2004005226 W GB2004005226 W GB 2004005226W WO 2005071276 A1 WO2005071276 A1 WO 2005071276A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover
- bolt
- protrusion
- tether
- fit
- Prior art date
Links
- 230000001681 protective effect Effects 0.000 title claims abstract description 9
- 231100001261 hazardous Toxicity 0.000 claims abstract description 5
- 230000002708 enhancing effect Effects 0.000 claims description 2
- 230000013011 mating Effects 0.000 claims description 2
- 230000006378 damage Effects 0.000 description 4
- 230000000994 depressogenic effect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920000126 latex Polymers 0.000 description 1
- 239000004816 latex Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001084 poly(chloroprene) Polymers 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000000717 retained effect Effects 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
- E04G5/00—Component parts or accessories for scaffolds
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C5/00—Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
- E04C5/16—Auxiliary parts for reinforcements, e.g. connectors, spacers, stirrups
- E04C5/161—Protective caps for the ends of reinforcing bars
-
- 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
-
- 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
- E04G5/00—Component parts or accessories for scaffolds
- E04G5/001—Safety or protective measures against falling down relating to scaffoldings
- E04G5/002—Protections or covers for scaffolding connections
-
- 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
- F16B37/00—Nuts or like thread-engaging members
- F16B37/14—Cap nuts; Nut caps or bolt caps
Definitions
- This invention relates to protective covers and particularly protective covers for protruding nuts, bolts and other hazardous protrusions.
- the objects of this invention are to provide an effective system of protection for the operatives, a reduction in exposure and a means of identification and warning of any insecurity.
- Other objects, advantages and remarkable features will come to light upon reading the following detailed description taken in conjunction with the accompanying drawings.
- the invention provides a releasable protective cover so sized and shaped as to fit over a hazardous protrusion such as for example the threaded end of a bolt: wherein the cover incorporates impact cushioning means; and further comprises a tether for linking the cover to the object from which the protrusion extends.
- This is particularly advantageous because it contributes to operators' safety by protecting an operator from harm and accident if and when operators inadvertently impact against the cover.
- This configuration is also particularly advantageous because it protects the protrusion such as the bolt from harmful exposure to the elements and possible subsequent corrosion. It will also deter unqualified persons from tampering with the equipment.
- the cover has a recessed portion for mating with the protrusion and the inner surface of the recess is equipped with means, selected from the group comprising a screw thread, a spring loaded insert, and a one way array of internal protrusions, for enhancing the grip of the cover in use.
- the tether is a releasable snap-fit on or around the cover.
- Figure 1 is a perspective view of a protective cover 1 placed in relation to an open scaffold coupler 2 with a retaining ring 3 to secure it to the coupler and a blind recessed hole to fit over the bolt 4 and nut 5 of the coupler.
- Figure 2 is a cross-sectional view of the cover taken along the line A-A of figure 1.
- Figure 3 is a cross-sectional view of the cover as in figure 2 with a female threaded lower body 6 and the retaining ring omitted.
- Figure 4 is a cross-sectional view of the cover as in figure 2 with a slip ring 7 incorporated to allow the body to be screwed on to the bolt.
- Figure 5 is a cross-sectional view of the cover as in figure 2 with a flexible split female thread 8 to the lower body to provide a push fit onto the threaded bolt.
- Figure 6 is a cross-sectional view of the cover as in figure 2 with an inner lining of angularly inward fibres 9 facing away from the open end of the cover to provide a push fit onto the threaded bolts.
- Figure 7 is a cross-sectional view of the cover as in figure 1 with an elliptical blind hole and a flexible split female thread 8 to the lower body to provide a grip fit to the threaded bolt when the lower body is depressed and released over the bolt.
- Figure 8 is a cross-sectional view of the cover as in figure 2 with an elliptical blind hole housing a spring loaded grip 10 to provide a grip fit to the threaded bolt when the lower body is depressed and released over the bolt.
- Figure 9 is a cross-sectional view of the cover as in figure 2 with two elliptical rings 11 and 12 moulded above and below each other into the wall of the smaller diameter hole to form a concentric circular passage for the bolt when depressed and gripping the thread when released.
- a cover of moulded latex, rubber, foam, plastic or similar malleable material is formed with a recessed blind hole of suitable length and diameter to closely fit over the nut and bolt of a standard scaffold coupler.
- the outside surface may be formed as a serrated grip 13.
- a retaining ring and connector may be incorporated to attach it to the coupler when the cover is not in use, in order to prevent loss.
- the retaining ring may be located on to the bolt of the coupler and the nut and washer are replaced, leaving the cover loose.
- the coupler is then located onto the scaffold tube and the nut fully tightened.
- the cover is then pushed or screwed onto the bolt to fully cover all the exposed bolt and nut.
- the placing of the cover may be used also to indicate that the scaffolding operations have been completed and is safe to use.
- colour marking by way of high visibility or fluorescent paint or dye may be added in the moulding process.
- Reclaimed rubber from used tyres may also form a source of raw material.
- One preferred material to be used is that sold under the brand name NEOPRENE. The material selected causes preferably a cushioning effect on impact and may be selected to be particularly resistant to sunlight and/or frost damage.
- the tether of the cover is of sufficient length to allow the tether to be placed over a standard scaffolding beam whilst being retained by the bolt so that the cover remains out of the way of the bolt and nut whilst the scaffolding is being dismantled and/or mounted.
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Lowering Means (AREA)
Abstract
A releasable protective cover so sized and shaped as to fit over a hazardous protrusion such as for example the threaded end of a bolt: wherein the cover incorporates impact cushioning means; and further comprises a tether for linking the cover to the object from which the protrusion extends.
Description
PROTECTIVE COVERS
Field of the Invention
This invention relates to protective covers and particularly protective covers for protruding nuts, bolts and other hazardous protrusions.
Background of the Invention
A major cause of injury on building sites for example axe the protruding nits and bolts on scaffold couplers, which present a hazard to operatives working in the vicinity. Said nuts and bolts are also exposed to the elements and to debris; such as concrete and mortar which makes them prone to corrosion and difficult to dismantle and re-assemble.
The objects of this invention are to provide an effective system of protection for the operatives, a reduction in exposure and a means of identification and warning of any insecurity. Other objects, advantages and remarkable features will come to light upon reading the following detailed description taken in conjunction with the accompanying drawings.
There is disclosed a releasably secured cover to protruding bolts, nuts and other hazardous protrusions, which offers protection from personal injury and also gives protection to the threads of said nuts and bolts.
Summary of the invention
In its broadest independent aspect, the invention provides a releasable protective cover so sized and shaped as to fit over a hazardous protrusion such as for example the threaded end of a bolt: wherein the cover incorporates impact cushioning means; and further comprises a tether for linking the cover to the object from which the protrusion extends.
This is particularly advantageous because it contributes to operators' safety by protecting an operator from harm and accident if and when operators inadvertently impact against the cover. This configuration is also particularly advantageous because it protects the protrusion such as the bolt from harmful exposure to the elements and possible subsequent corrosion. It will also deter unqualified persons from tampering with the equipment.
In a first subsidiary aspect in accordance with the invention's broadest aspect, the cover has a recessed portion for mating with the protrusion and the inner surface of the recess is equipped with means, selected from the group comprising a screw thread, a spring loaded insert, and a one way array of internal protrusions, for enhancing the grip of the cover in use.
Each one of these optional features of the invention is advantageous in the manner in which they improve the grip of the cover to the protrusion.
In a further subsidiary aspect, the tether is a releasable snap-fit on or around the cover.
Specific embodiments of the invention will now be described by way of example with reference to the accompanying drawings, in which.
Brief Description of the Figures
Figure 1 is a perspective view of a protective cover 1 placed in relation to an open scaffold coupler 2 with a retaining ring 3 to secure it to the coupler and a blind recessed hole to fit over the bolt 4 and nut 5 of the coupler.
Figure 2 is a cross-sectional view of the cover taken along the line A-A of figure 1.
Figure 3 is a cross-sectional view of the cover as in figure 2 with a female threaded lower body 6 and the retaining ring omitted.
Figure 4 is a cross-sectional view of the cover as in figure 2 with a slip ring 7 incorporated to allow the body to be screwed on to the bolt.
Figure 5 is a cross-sectional view of the cover as in figure 2 with a flexible split female thread 8 to the lower body to provide a push fit onto the threaded bolt.
Figure 6 is a cross-sectional view of the cover as in figure 2 with an inner lining of angularly inward fibres 9 facing away from the open end of the cover to provide a push fit onto the threaded bolts.
Figure 7 is a cross-sectional view of the cover as in figure 1 with an elliptical blind hole and a flexible split female thread 8 to the lower body to provide a grip fit to the threaded bolt when the lower body is depressed and released over the bolt.
Figure 8 is a cross-sectional view of the cover as in figure 2 with an elliptical blind hole housing a spring loaded grip 10 to provide a grip fit to the threaded bolt when the lower body is depressed and released over the bolt.
Figure 9 is a cross-sectional view of the cover as in figure 2 with two elliptical rings 11 and 12 moulded above and below each other into the wall of the smaller diameter hole to form a concentric circular passage for the bolt when depressed and gripping the thread when released.
Detailed Description of the Drawings
Referring to the drawings, a cover of moulded latex, rubber, foam, plastic or similar malleable material is formed with a recessed blind hole of suitable length and diameter to closely fit over the nut and bolt of a standard scaffold coupler. The outside surface may be formed as a serrated grip 13. A retaining ring and connector may be incorporated to attach it to the coupler when the cover is not in use, in order to prevent loss. To utilise the cover the retaining ring may be located on to the bolt of the coupler and the nut and washer are replaced, leaving the cover loose. The coupler is then located onto the scaffold tube and the nut fully tightened. The cover is then pushed or screwed onto the bolt to fully cover all the exposed bolt and nut. The placing of the cover may be used also to indicate that the scaffolding operations have been completed and is safe to use. To this end, colour marking by way of high visibility or fluorescent paint or dye may be added in the moulding process. Reclaimed rubber from used tyres may also form a source of raw material. One preferred material to be used is that sold under the brand name NEOPRENE. The material selected causes preferably a cushioning effect on impact and may be selected to be particularly resistant to sunlight and/or frost damage.
It is also envisaged that the tether of the cover is of sufficient length to allow the tether to be placed over a standard scaffolding beam whilst being retained by the bolt so that the cover remains out of the way of the bolt and nut whilst the scaffolding is being dismantled and/or mounted.
Claims
1. A releasable protective cover so sized and shaped as to fit over a hazardous protrusion such as for example the threaded end of a bolt: wherein the cover incorporates impact cushioning means; and further comprises a tether for linking the cover to the object from which the protrusion extends.
2. A cover according to Claim 1, wherein the cover has a recessed portion for mating with the protrusion and the inner surface of the recess is equipped with means, selected from the group comprising a screw thread, a spring loaded insert, and a one way array of internal protrusions, for enhancing the grip of the cover in use.
3. A cover according to either of the preceding Claims, wherein the tether is a releasable snap-fit on or around the cover.
4. A releasable protective cover substantially as hereinbefore described in any appropriate combination of the accompanying text and/or figures.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GBGB0401248.0A GB0401248D0 (en) | 2004-01-20 | 2004-01-20 | Protective covers for bolts and fittings |
| GB0401248.0 | 2004-01-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005071276A1 true WO2005071276A1 (en) | 2005-08-04 |
Family
ID=31971177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/GB2004/005226 WO2005071276A1 (en) | 2004-01-20 | 2004-12-13 | Protective covers |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB0401248D0 (en) |
| WO (1) | WO2005071276A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2446477A (en) * | 2007-02-09 | 2008-08-13 | Dennis Scott | An interchangeable safety cap for scaffolding |
| ITMI20091552A1 (en) * | 2009-09-10 | 2009-12-10 | Arte V Ponteggi Di Shapka Artur E Artan S N C | SAFETY DEVICE FOR SCAFFOLDING |
| WO2014135835A1 (en) * | 2013-03-07 | 2014-09-12 | Creaspire Limited | Scaffolding clamp |
| WO2015099524A1 (en) * | 2013-12-24 | 2015-07-02 | Harsco Nederland B.V. | Coupler for scaffolding and securing means and a securing bracket for use therein |
| WO2016071737A1 (en) * | 2014-11-05 | 2016-05-12 | Geoffrey Arthur Houghton | High visibility scaffolding |
| US11352791B1 (en) | 2021-04-08 | 2022-06-07 | Joseph H. Nicholls | Rebar cover |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB933050A (en) * | 1961-04-17 | 1963-07-31 | Gen Motors Corp | Fastener caps for screws and studs |
| FR2348406A1 (en) * | 1976-04-14 | 1977-11-10 | Freyssinet Int Stup | End fitting for cables for prestressed concrete - simplifies threading of strands into cable sheath |
| US4307748A (en) * | 1978-09-26 | 1981-12-29 | Lucas Industries Limited | Sealing devices for bleed screws |
| GB2261272A (en) * | 1991-11-09 | 1993-05-12 | Gen Motors France | Cap for a brake bleed screw |
| FR2712618A3 (en) * | 1993-11-19 | 1995-05-24 | Teulades Sa | Anchoring element for roofing material on building |
| US5653564A (en) * | 1995-05-25 | 1997-08-05 | Shinagawa Shoko Co., Ltd. | Screw head cap |
| US5752795A (en) * | 1997-01-21 | 1998-05-19 | D'adamo; Bruce | Apparatus and method for protecting exposed sections of a nut and bolt |
-
2004
- 2004-01-20 GB GBGB0401248.0A patent/GB0401248D0/en not_active Ceased
- 2004-12-13 WO PCT/GB2004/005226 patent/WO2005071276A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB933050A (en) * | 1961-04-17 | 1963-07-31 | Gen Motors Corp | Fastener caps for screws and studs |
| FR2348406A1 (en) * | 1976-04-14 | 1977-11-10 | Freyssinet Int Stup | End fitting for cables for prestressed concrete - simplifies threading of strands into cable sheath |
| US4307748A (en) * | 1978-09-26 | 1981-12-29 | Lucas Industries Limited | Sealing devices for bleed screws |
| GB2261272A (en) * | 1991-11-09 | 1993-05-12 | Gen Motors France | Cap for a brake bleed screw |
| FR2712618A3 (en) * | 1993-11-19 | 1995-05-24 | Teulades Sa | Anchoring element for roofing material on building |
| US5653564A (en) * | 1995-05-25 | 1997-08-05 | Shinagawa Shoko Co., Ltd. | Screw head cap |
| US5752795A (en) * | 1997-01-21 | 1998-05-19 | D'adamo; Bruce | Apparatus and method for protecting exposed sections of a nut and bolt |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2446477A (en) * | 2007-02-09 | 2008-08-13 | Dennis Scott | An interchangeable safety cap for scaffolding |
| ITMI20091552A1 (en) * | 2009-09-10 | 2009-12-10 | Arte V Ponteggi Di Shapka Artur E Artan S N C | SAFETY DEVICE FOR SCAFFOLDING |
| WO2014135835A1 (en) * | 2013-03-07 | 2014-09-12 | Creaspire Limited | Scaffolding clamp |
| WO2015099524A1 (en) * | 2013-12-24 | 2015-07-02 | Harsco Nederland B.V. | Coupler for scaffolding and securing means and a securing bracket for use therein |
| WO2016071737A1 (en) * | 2014-11-05 | 2016-05-12 | Geoffrey Arthur Houghton | High visibility scaffolding |
| US11352791B1 (en) | 2021-04-08 | 2022-06-07 | Joseph H. Nicholls | Rebar cover |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0401248D0 (en) | 2004-02-25 |
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