AU4268800A - Roof anchorage point for safe working from heights - Google Patents
Roof anchorage point for safe working from heights Download PDFInfo
- Publication number
- AU4268800A AU4268800A AU42688/00A AU4268800A AU4268800A AU 4268800 A AU4268800 A AU 4268800A AU 42688/00 A AU42688/00 A AU 42688/00A AU 4268800 A AU4268800 A AU 4268800A AU 4268800 A AU4268800 A AU 4268800A
- Authority
- AU
- Australia
- Prior art keywords
- roof
- truss
- anchorage
- anchorage point
- eyelet bolt
- 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
- 229910000831 Steel Inorganic materials 0.000 claims description 7
- 239000010959 steel Substances 0.000 claims description 7
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims description 3
- 230000003068 static effect Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 206010048744 Fear of falling Diseases 0.000 claims 1
- 238000005253 cladding Methods 0.000 claims 1
- 238000007689 inspection Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 239000011295 pitch Substances 0.000 claims 1
- 230000004888 barrier function Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 239000012528 membrane Substances 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
- 238000009877 rendering Methods 0.000 description 1
Landscapes
- Working Measures On Existing Buildindgs (AREA)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
Description
"TRUE COPY" COMPLETE SPECIFICATION FOR A STANDARD PATENT in the name of FERGUS BUTTERWORTH and PETER DAMIRIS entitled "A ROOF ANCHORAGE POINT FOR SAFE WORKING FROM HEIGHTS" FERGUS BUTTERWORTH and PETER DAMIRIS.
P. O. BOX 1320 NOOSAVILLE D C.
QLD 4566
AUSTRALIA.
p
I.
Filed by:
AUSTRALIA
Patents Act 1990 i.
ORIGINAL
COMPLETE SPECIFICATION FOR A STANDARD PATENT Invention Title: "ROOF ANCORAGE POINT FOR SAFE WORKING FROM HEIGHTS" The following statement is a full description of this invention, including the best method of performing it known to us.
2 THIS INVENTION relates to a roof anchorage point for a lanyard and harness to be secured to, for safe working from heights and is particularly suitable for, but not limited to timber roof trusses. Any reference to trusses can also mean structural members of a roof frame, ie a pitched roof, a steel frame, beams, rafters, purlins or any roof framing structure.
Occupational work safety standards, at least applicable in the state of Queensland require that a safety barrier system be 10 provided around a roof structure of even domestic dwellings 0 during construction. It is however impossible for such a system to be used after the soffits have been fitted, therefore rendering roofs an unsafe work environment ie. For roof tilers when bedding and pointing the roof, roof repairers and restorers, TV aerial installers and tradespeople required at any subsequent stage for roof maintenance.
From our research, current industry practices vary from nothing at all to tying off to a truss member or batten as an anchor point on the other side of the roof and being harnessed. These clearly are not appropriate anchoring points.
The object of this invention is to be a permanent device providing a safe working environment for any worker when working on a roof.
10 Our searches have disclosed nothing similar. This has also been evident while discussing the difficulties in complying with current Workplace Health and Safety Regulations. We have consulted with local and Divisional Heads of Workplace Health and Safety, recognised Safety Consultants, and various safety equipment 15 supply firms. On all occasions not one permanently fixed device was brought to our attention that provided security for roof workers after the safety barrier system was removed.
It is an object of the present invention to provide such an assembly which cannot be dislodged in use and which is suitable not only for timber roof frames.
It is envisaged to be primarily used as a fall restraint rather than fall arrest system. A static line will also be able to be used when secured between two of the devices enabling greater flexibility for roof workers. The device will comply with Australian Standards.
Se. The present invention will become apparent from the following description: The device clamped to either side of a roof truss including a main steel plate; 15 pilot holes allowing primary fixing with roof screws to one side of the truss; two steel welded gussets for plate re-enforcing; an eyelet bolt which is the roof workers anchorage point; a pipe welded at a perpendicular angle to the main plate which will house the eyelet bolt and providing further reinforcing; a nut welded to the base of the aforementioned pipe in which the eyelet bolt will be threaded into; a bar of angle iron which will be secured to the other side of the main plate and truss via two nuts and bolts.
To enable the invention to be fully understood, it will be described with reference to the accompanying drawings in which: 10 FIG 1 is a frontal view of the invention ready to be secured to a roof truss; FIG 2 is an end elevation view; FIG 3 shows the device after it has been fixed to the truss with the eyelet bolt screwed into the nut at the base of the device.
15 FIG 4 shows a three dimensional view of the device.
S S S 6 Referring to FIG 1, the device has a series of pilot positioning holes in which type 17 hex head roof screws are screwed into (for timber roof structures). Two steel gussets which are welded at 90 degrees to the main plate thus reinforcing it. A series of holes accommodating two 12 mm diameter bolts and nuts (FIG 2 which will clamp the angle iron bracket
(FIG
2 to the other side of the truss. It should be noted that the two aforementioned 12mm bolts do not penetrate the truss members. One pipe welded to the main plate that houses the eyelet bolt One nut welded to the base of the main .i o plate in which the previously stated eyelet bolt screws into.
Installation of the device is to be carried out in the following manner. The main plate is positioned against one side of the truss. Two type 17 hex head roofing screws are then screwed into the truss to secure the main plate. On the other side of the truss, the angle iron is secured by the tightening of the two 12 mm diameter bolts and nuts. These nuts and bolts are tightened greatly which effectively clamps the device to the truss giving a very secure, specifically designed anchorage point. The device is completed with the installation of the eyelet bolt through the top ridge of the roofing membrane.
c 10 t.
0060 0 *0 55.5
S
55.
0 9**S 5 5
*S
It will be readily apparent to the skilled addressee that the device can be easily fixed to both new and existing buildings.
It will also be readily apparent that the device can be used with steel framed buildings by being welded to the roof structure instead of being bolted and screwed.
Various changes and modifications may be made without departing from the scope of the present invention defined herein.
DATED this twentieth day of June 2000.
FERGUS BUTTERWORTH AND PETER DAMIRIS.
Claims (8)
1. A roof anchorage point for safe working from heights comprising a steel plate with a series of pilot holes to allow primary fixing to the truss, two steel welded gussets to reinforce the plate, a pipe welded at perpendicular angle to the main plate. This pipe houses the eyelet bolt which threads into the nut at the base of this pipe and is the anchorage point for the roof worker. On the other side of the truss a bar of angle iron secures the device by effectively clamping it to the truss via two nuts and bolts.
2. The roof anchorage device of claim 1 is simple and easy to erect. Despite the fact that the device has been designed as a permanent fixture, the eyelet bolt and the device itself can be easily removed to allow for periodical inspections and maintenance as may be required. It is further claimed that if this device is being inspected or completely removed for 9 maintenance, will not disturb any part of the roof cladding ie. the bedding and pointing or ridgecaps thus making it very versatile.
3. Further to claim 2, if for aesthetic purposes a homeowner would prefer to not have the eyelet bolt protruding from the ridge, it o can be removed easily and the hole flashed off to stop leaks.
4. The roof anchoring device of claim 1 is extremely versatile. It is suitable for roof pitches anywhere between 5 and 35 degrees without having to be modified.
In addition to the versatility of claim 4 this device can be used on a wide variety of roof types including; iron, tile and decromastic that are commonly used in Australia, however is not limited to the previously mentioned roof types.
6. It is claimed the device can be used as a single anchorage point, or for greater accessibility, two or more roof anchorage devices can accommodate a static line. When secured to a static line via a carabiner, a lanyard and harness, roof workers can access vast areas of the roof surface area safely.
7. Because this device is fitted at the highest point of a roof, the ridge, it allows roof workers to work easily on any side of the roof without fear of falling as they're always secured firmly.
8. It is claimed and certified by our engineers report that this .22: device when tested was able to withstand a manload of 100kg falling with a 6g deceleration. Effectively, a 6.0KN resistance load for a 1.0KN manload thus meeting Australian Standard AS 1891.1995 for fall restraint. FERGUS BUTTERWORTH and 6th October 2000 PETER DAMIRIS
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU42688/00A AU746042C (en) | 2000-06-26 | 2000-06-26 | Roof anchorage point for safe working from heights |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU42688/00A AU746042C (en) | 2000-06-26 | 2000-06-26 | Roof anchorage point for safe working from heights |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| AU4268800A true AU4268800A (en) | 2002-01-03 |
| AU746042B2 AU746042B2 (en) | 2002-04-11 |
| AU746042C AU746042C (en) | 2004-03-11 |
Family
ID=3729907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU42688/00A Ceased AU746042C (en) | 2000-06-26 | 2000-06-26 | Roof anchorage point for safe working from heights |
Country Status (1)
| Country | Link |
|---|---|
| AU (1) | AU746042C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109381831A (en) * | 2018-11-21 | 2019-02-26 | 中建二局第建筑工程有限公司 | A kind of safety device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9406680U1 (en) * | 1994-04-21 | 1994-06-16 | Electrolux Therma Gmbh, 22047 Hamburg | Combination device for preparing hot dishes |
-
2000
- 2000-06-26 AU AU42688/00A patent/AU746042C/en not_active Ceased
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109381831A (en) * | 2018-11-21 | 2019-02-26 | 中建二局第建筑工程有限公司 | A kind of safety device |
Also Published As
| Publication number | Publication date |
|---|---|
| AU746042C (en) | 2004-03-11 |
| AU746042B2 (en) | 2002-04-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5361558A (en) | Roof mountable safety line anchor | |
| EP1309764B1 (en) | Roof anchor method and apparatus | |
| US6038829A (en) | Adaptable safety rail system for flat roofs and parapets | |
| US20080179477A1 (en) | Scaffolding securement system | |
| US20150107184A1 (en) | Truss mount bracket for roof anchors and related systems and methods | |
| AU2021236554B2 (en) | Improvements relating to lifting of building units | |
| US9878187B2 (en) | Joist anchor | |
| AU4268800A (en) | Roof anchorage point for safe working from heights | |
| US7364016B2 (en) | Fall arrest safety anchorage device | |
| CA3210123A1 (en) | Fall protection for buildings | |
| US20070017741A1 (en) | Truss-mounted rooftop fall protection system | |
| JPS6348749Y2 (en) | ||
| AU2008328532B2 (en) | Roof anchor method and apparatus | |
| US12415103B1 (en) | Fall protection anchor devices, systems, and methods | |
| GB2429031A (en) | A scaffolding clamp | |
| AU763738B2 (en) | Improved barriers and barrier systems ad components for barrier systems | |
| JPS5912352Y2 (en) | construction scaffolding equipment | |
| JPH0325642B2 (en) | ||
| JPH028025Y2 (en) | ||
| JPH1054086A (en) | Conventional wooden-framework tension building construction | |
| JPH06146222A (en) | Blind attaching fixture for scaffold | |
| JP2007146510A (en) | Fall-prevention device for work on roof and construction method thereof | |
| AU2003259587A1 (en) | Improved barriers and barrier systems and components for barrier systems | |
| JPH11210222A (en) | Scaffolding for wooden building | |
| JPH03158569A (en) | Fall preventing structure for execution of industrialized house |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CB | Opposition lodged by |
Opponent name: NICHOLAS ROBERT COLLINS |
|
| FGA | Letters patent sealed or granted (standard patent) | ||
| DA2 | Applications for amendment section 104 |
Free format text: THE NATURE OF THE PROPOSED AMENDMENT IS AS SHOWN IN THE STATEMENT(S) FILED 20030701 |
|
| CH | Opposition withdrawn |
Opponent name: NICHOLAS ROBERT COLLINS |
|
| DA3 | Amendments made section 104 |
Free format text: THE NATURE OF THE AMENDMENT IS AS WAS NOTIFIED IN THE OFFICIAL JOURNAL DATED 20031016 |
|
| FGA | Letters patent sealed or granted (standard patent) |