IES86148B2 - A counterbalance for a free-standing guardrail - Google Patents
A counterbalance for a free-standing guardrailInfo
- Publication number
- IES86148B2 IES86148B2 IES20120481A IES20120481A IES86148B2 IE S86148 B2 IES86148 B2 IE S86148B2 IE S20120481 A IES20120481 A IE S20120481A IE S20120481 A IES20120481 A IE S20120481A IE S86148 B2 IES86148 B2 IE S86148B2
- Authority
- IE
- Ireland
- Prior art keywords
- counterbalance
- guardrail
- resilient
- rubber
- block
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 19
- 229920001971 elastomer Polymers 0.000 claims abstract description 12
- 239000011230 binding agent Substances 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000008187 granular material Substances 0.000 claims description 2
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 239000012528 membrane Substances 0.000 description 3
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920002209 Crumb rubber Polymers 0.000 description 1
- NCEXYHBECQHGNR-UHFFFAOYSA-N chembl421 Chemical compound C1=C(O)C(C(=O)O)=CC(N=NC=2C=CC(=CC=2)S(=O)(=O)NC=2N=CC=CC=2)=C1 NCEXYHBECQHGNR-UHFFFAOYSA-N 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 150000003673 urethanes Chemical class 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
- E04G21/3204—Safety or protective measures for persons during the construction of buildings against falling down
- E04G21/3223—Means supported by building floors or flat roofs, e.g. safety railings
- E04G21/3233—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof
- E04G21/3238—Means supported by building floors or flat roofs, e.g. safety railings without permanent provision in the floor or roof using counterweights
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
Abstract
A counterbalance (10) for a free standing guardrail, comprises a block (11) of resilient, rubber-based material having a recess (12) disposed therein, the recess (12) being adapted to receive, in use, an elongate member of the guardrail. The block (11) of resilient, rubber-based material is moulded from a mixture of granulated, recycled tyre material and a binder. In use, if the counterbalance (10) is accidently dropped, it will not shatter but rather the force of impact will be absorbed by the resilient, rubber-based material. Furthermore, due to the resilient nature of the material, a roof surface, on which the guardrail is to be erected, will not be damaged by accidental dropping of the counterbalance (10) thereon.
Description
A counterbalance for a free standing guardrail This invention relates to a counterbalance for a free standing guardrail and, in particular, to a counterbalance for a free standing roof edge guardrail.
Free standing roof edge guardrails are used as part of a safety system for people working on a flat roof. These people can range from building contractors to engineers carrying out building, repair and maintenance work on the roof. Free standing guardrail systems are employed to minimise any damage to the roof. In particular, the use of a free standing system eliminates the necessity of penetrating the roof surface in order to install the guardrail.
The KEEGUARD (KEEGUARD is a registered trade mark) free standing roof edge protection system is a modular system that does not penetrate the roof membrane and is manufactured by Kee Safety Ltd., of 1 Boulton Road, Reading, Berkshire RG2 ONH, United Kingdom. The KEEGUARD system works on a counterweight system using recycled polyvinyl chloride (PVC) counterweights. These counterweights provide a non-slip secure base that does not penetrate the roof membrane. The counterweights balance the weight of a guardrail to which they are attached.
The KEEGUARD system can be used for most rooftop configurations and almost any flat roof up to a 3 degree slope can be accommodated. However, as quite a number of the counterweights must δ b be employed, for a typical installation, problems can arise during installation on a roof. The recycled PVC material is vulnerable to cracking if a counterweight is accidentally dropped. The roof membrane can also be damaged if a counterweight is dropped onto it. The system is also limited to flat roofs up to a 3 degree slope.
It is an object of the present invention to overcome the disadvantages of the counterbalance hereinbefore described.
Thus, the invention provides a counterbalance for a free standing guardrail, the counterbalance comprising a block of resilient, rubber10 based material having a recess disposed therein, the recess being adapted to receive, in use, an elongate member of the guardrail.
An advantage of the counterbalance according to the invention is that, if it is accidently dropped, it does not shatter but rather the force of impact will be absorbed by the resilient, rubber-based material.
Furthermore, due to the resilient nature of the material, the roof surface will not be damaged by accidental dropping of a counterbalance thereon. ί A still further advantage of the counterbalance according to the invention is that when it is in place it tends to resist movement due to the nature of the rubber-based material. This resistance to movement is such that the counterbalance can be used on a roof with up to a 16 degree slope.
Preferably, the block of resilient, rubber-based material is moulded from a mixture of granulated, recycled tyre material and a binder.
An advantage of the use of granulated, recycled tyre material and a binder to produce the counterbalance is that a source of granulated, recycled tyre material is usually readily available at an economical price.
A further advantage of this feature is that the mixture lends itself to being moulded into a suitable shape.
Further, preferably, the binder is a material suitable for binding recycled rubber granulate.
A particularly preferred binder is a mixture of diphenylmethanediisocyanate, isomers and homologues of the type sold under the trade mark Strobicoll R352.
In one embodiment of the invention, the block is of a generally rectangular shape with a flat base and flat top surface with a bevelled peripheral edge thereto.
An advantage of the counterbalance shaped in this way is that it is unlikely for a person to trip over it, in use, as it has a sloped profile.
The invention will be further illustrated by the following description of an embodiment thereof, given by way of example only with reference to the accompanying drawings in which: Fig. 1 is a perspective view of a counterbalance in accordance with the invention; Fig. 2 is a side elevation of a section of a guardrail system incorporating the counterbalance of Fig. 1; and Fig.3 is a plan view of the guardrail system of Fig. 2.
Referring to Fig.l, there is illustrated generally at 10, a counterbalance for a free standing guardrail in accordance with the invention. The counterbalance 10 comprises a block 11 of resilient, rubber-based materiel having a recess 12 disposed therein, the recess 12 being adapted to receive, in use, an elongate member of the guardrail (see Figs. 2 and 3).
The block 11 of resilient, rubber-based materiel is moulded from a mixture of granulated, recycled tyre materiel and a binder. The granulated tyre materiel is supplied by Crumb Rubber Ireland Ltd., of Mooretown, Dromiskin, Dundalk, County Louth, Ireland. The binder is Strobicoll R352 (Strobicoll is a registered trade mark), a mixture of diphenylmethanediisocyanate, isomers and homologues manufactured by Stockmeier Urethanes France S.A.S. of 8, rue de l’industrie, Z.I., F68700 Cemay, France.
The recess 12 is a cylindrical bore (not shown), which extends within the block 11. Two shafts 13,14 extend from top surface 15 of the block 11 to meet the cylindrical bore. In use a coupling is dropped into the or each of the shafts 13,14 to lock the elongate section of the guardrail (see Fig. 3, hereinafter).
Sides 16, 17 of the block 11 are bevelled so as to reduce the likelihood of a person tripping over the counterbalance 10, when in use.
Referring to Fig. 2, there is illustrated generally at 20, a section of a guardrail system incorporating a counterbalance 10 in accordance with the invention.
The section 20 of the guardrail comprises an elongate section 21, which is located within the recess 12 of the counterbalance 10.
An upstanding member 22 of the guardrail section 20 is attached at right angles to the elongate section 21 by a base support 23. Two crossover hooks 24, 25 are attached to the upstanding member 22 at positions 26, 27 respectively. The crossover hooks 24, 25 accommodate a pair of guardrails (not shown).
Referring to Fig. 3, the position of the elongate section 21 within the counterbalance 10 is illustrated in more detail. The elongate section 21 is located within the recess 12 and is retained in position by a coupling 28 located within the shaft 14.
Claims (5)
1. A counterbalance for a free standing guardrail, the counterbalance comprising a block of resilient, rubber-based material having a recess disposed therein, the recess being adapted to receive, in 5 use, an elongate member of the guardrail.
2. A counterbalance according to Claim 1, wherein the block of resilient, rubber-based material is moulded from a mixture of granulated, recycled tyre material and a binder.
3. A counterbalance according to Claim 2, wherein the 10 binder is a material suitable for binding recycled rubber granulate.
4. A counterbalance according to any preceding claim, wherein the block is of a generally rectangular shape with a flat base and flat top surface with a bevelled peripheral edge thereto.
5. A counterbalance according to Claim 1 for a free standing 15 guardrail, substantially as hereinbefore described with particular reference to and as illustrated in the accompanying drawings.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IES20120481A IES86148B2 (en) | 2012-11-09 | 2012-11-09 | A counterbalance for a free-standing guardrail |
| PCT/EP2013/073281 WO2014072413A1 (en) | 2012-11-09 | 2013-11-07 | A counterbalance for a free standing guardrail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IES20120481A IES86148B2 (en) | 2012-11-09 | 2012-11-09 | A counterbalance for a free-standing guardrail |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IES20120481A2 IES20120481A2 (en) | 2013-02-27 |
| IES86148B2 true IES86148B2 (en) | 2013-02-27 |
Family
ID=47739806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IES20120481A IES86148B2 (en) | 2012-11-09 | 2012-11-09 | A counterbalance for a free-standing guardrail |
Country Status (2)
| Country | Link |
|---|---|
| IE (1) | IES86148B2 (en) |
| WO (1) | WO2014072413A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201314108D0 (en) * | 2013-08-07 | 2013-09-18 | Smith Gary A | Improved anchor means |
| AU2023370590B2 (en) * | 2022-12-14 | 2024-08-15 | Sayfa R&D Pty Ltd | Modular free-standing ballasted guardrail system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5676350A (en) * | 1994-12-06 | 1997-10-14 | Galli; George | Portable barrier system with portable post mounting device |
| JPH1181693A (en) * | 1997-09-05 | 1999-03-26 | Niyuucentral Kk | Protective fence |
| NL1008592C2 (en) * | 1998-03-13 | 1999-09-14 | Heras Holding | Foot with stabilizing railings |
| GB0126859D0 (en) * | 2001-11-08 | 2002-01-02 | Kee Klamp Ltd | Counter-balance weight for a modular safety rail |
| DE20208782U1 (en) * | 2002-06-05 | 2002-08-22 | Müller & Baum GmbH & Co. KG, 59846 Sundern | Construction fence and anti-lifting device for a construction fence |
| GB2402423B (en) * | 2003-06-05 | 2006-02-01 | Access Technologies Ltd | Counter-balance weight for a modular safety rail |
| NL1024535C2 (en) * | 2003-10-14 | 2005-04-22 | Daktari V O F | Fall protection. |
| GB0802613D0 (en) * | 2008-02-13 | 2008-03-19 | Boyle John P | Demarcation apparatus |
-
2012
- 2012-11-09 IE IES20120481A patent/IES86148B2/en not_active IP Right Cessation
-
2013
- 2013-11-07 WO PCT/EP2013/073281 patent/WO2014072413A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| IES20120481A2 (en) | 2013-02-27 |
| WO2014072413A1 (en) | 2014-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8979418B2 (en) | Barrier | |
| US9038324B2 (en) | Field paver connector and restraining system | |
| US6722469B1 (en) | Guard plate and safety anchor | |
| US20060145131A1 (en) | Guardrail system and associated methods | |
| US7509702B2 (en) | Barricade system and barricade bracket for use therein | |
| US8122673B2 (en) | Portable safety skylight replacement assembly | |
| US20170260754A1 (en) | Peripheral stabilizing system for elevated flooring surface | |
| EP3279407B1 (en) | Profiled element for laying raised floors, and raised floor comprising such profiled element | |
| IES86148B2 (en) | A counterbalance for a free-standing guardrail | |
| US11208818B1 (en) | Safety apparatus | |
| US20080168719A1 (en) | Construction hole safety device | |
| US20150225971A1 (en) | Adjustable mounting arrangement | |
| US20080075532A1 (en) | Construction site hole cap for covering holes | |
| IE20120481U1 (en) | A counterbalance for a free-standing guardrail | |
| IES86148Y1 (en) | A counterbalance for a free-standing guardrail | |
| EP2917434A1 (en) | A counterbalance for a free standing guardrail | |
| US20070113490A1 (en) | Construction site hole cap for covering holes | |
| DK1678398T3 (en) | Fall Protection Systems | |
| US20240167242A1 (en) | Collective safety and manhole signalling in building and civil engineering works | |
| AU2012100415A4 (en) | Temporary safety railing system | |
| CN204238536U (en) | Safety protection operation platform | |
| KR101270980B1 (en) | Device for combining the wood plastic composite deck and connection structure of wood plastic composite deck used thereof | |
| KR200368061Y1 (en) | Collision Protection Apparatus for H-shape Steel | |
| RU2471048C1 (en) | Device to finish and protect corner edges (versions) | |
| KR200383100Y1 (en) | Structure of a floor for steel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK9A | Patent expired |