CA2287040A1 - Back railing - Google Patents
Back railing Download PDFInfo
- Publication number
- CA2287040A1 CA2287040A1 CA 2287040 CA2287040A CA2287040A1 CA 2287040 A1 CA2287040 A1 CA 2287040A1 CA 2287040 CA2287040 CA 2287040 CA 2287040 A CA2287040 A CA 2287040A CA 2287040 A1 CA2287040 A1 CA 2287040A1
- Authority
- CA
- Canada
- Prior art keywords
- tube
- hooks
- back railing
- attached
- hook
- 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.)
- Abandoned
Links
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
- E04G5/14—Railings
-
- 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
- E04G7/00—Connections between parts of the scaffold
- E04G7/30—Scaffolding bars or members with non-detachably fixed coupling elements
- E04G7/302—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members
- E04G7/306—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect
- E04G7/308—Scaffolding bars or members with non-detachably fixed coupling elements for connecting crossing or intersecting bars or members the added coupling elements are fixed at several bars or members to connect without tying means for connecting the bars or members
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
- Emergency Lowering Means (AREA)
Abstract
The invention relates to a back railing consisting of a tube and two hooks with one of the hooks being attached to each end region of said tube.
Description
Back railing The present invention relates to a back railing consisting of a tube and two hooks with one of the hooks being attached to each end region of said tube.
Back railings are important parts of scaffolds for improving the safety of the personnel working on these scaffolds. In the past these back railings of modular scaffolds consisted, for example, of a tube having a feeding head attached to each of its ends by a wedge. Said wedge was anchored to the perforated disk of the vertical scaffolding tube by the use of a hammer. Said back railing has the disadvantage that the feeding head can only be manufactured at great expense and is adding to the weight of the back railing. In addition to this, tools are needed for the assembly/disassembly of these back railings.
It is therefore an object of the present invention to provide a back railing not showing the disadvantages of the prior art and facilitating an easier assembly.
According to the present invention, said object is achieved by providing a back railing consisting of a tube and two hooks with one of the hooks being attached to each end region of said tube.
The tube may be any tube of any cross-section and any diameter. Preferably the tube has a spherical cross-section with a diameter between 35 mm and 45 mm.
The tube has two hooks attached to it. One of the hooks is attached to each end region of said tube in an arbitrary manner. They can be, for example, screwed, riveted or welded to the tube.
Preferably the hooks are manufactured from any rod-shaped material having an arbitrary cross-section. Particularly preferred the hooks are manufactured from cylinder-shaped material preferably having a diameter of 10-14 mm. Preferably the hooks are manufactured by bending. The hooks may be made from plastic or metal with metal being preferred.
Preferably the hooks are attached to the tube in such a way that the central axis of the hooks forms an angle of 45°-135°, preferably of 75°-115° and more preferably preferred of 85°-95°, relative to the vertical central axis of the tube.
In a preferred embodiment of the present invention the hooks have one straight segment and at least one angular segment, said straight segment having a length of 30-80 mm and said angular segment having a length of 20-60 mm. The angular segment forms an angle of 15°-165°, preferably 45°-135° and more preferably of 85°-95°, relative to the straight segment of the hook.
In a preferred embodiment of the present invention the hook consists of so many short angular segments that the shape of said hook either approximates a circular-bent hook or that the hook is circular-bent.
Also preferred the back railing according to the present invention additionally has suspension sheets to which the hooks are attached. Said suspension sheets are preferably attached to the ends of the tube and are preferably angular-shaped.
In another preferred embodiment of the back railing according to the present invention the ends of the tube are flattened and the hooks are attached to said flattened segments of the tube.
The back railing of the present invention is attached to any scaffold with a matching receiving device, preferably perforated disks with openings, by positioning the lower tip of each hook above one of said openings of one receiving device and by rotating the whole back railing of the present invention around its longitudinal axis and thereby fitting the hooks into the openings and attaching the back railing to the perforated disks in such a way that it cannot come undone. Therefore the process of attaching the back railings of the present invention to a scaffold, preferably a modular scaffold, is also claimed.
This way the back railing can be attached to any perforated disk known to someone skilled in the art, as disclosed, for example, in US 5 605 204, particularly in figure 2, DE-PS-24 49 124, particularly in figures 1 a and 1 b; DE-OS-196 02 737, particularly in figure 1, EP-PS-0 289 825, particularly in figure 3 and in the german application 198 44 612.8 of the applicant, particularly in figures 1 and 2. Said documents are hereby incorporated by reference and become part of the disclosure.
The back railing of the present invention has the advantage that is much easier manufactured than back railings known from the prior art. The back railing of the present invention can easily be assembled by one grasp and without the use of any tools. The back railing of the present invention can be attached to any scaffold having perforated disks. The back railing of the present invention has a lower weight than back railings with a feeding head.
With references to the figures 1-4 the present invention will be illustrated below. The illustrations are only meant to explain the present invention, not to limit its scope.
In the drawings:
Figure 1 shows the back railing of the present invention having a hook attached to its flattened ends.
Figure 2 shows the back railing of the present invention with the hook being attached to a suspension sheet.
Figure 3a and 3b each show an example of the hook.
Figure 4 shows the back railing in its built-in state.
Figure1 illustrates one end of the back railing according to the present invention. The other end of the back railing is identical to this. The tube 2 of the back railing has a diameter of 38 mm and a wall thickness of 1,8 mm and is flattened at its ends.
The hook 3 is pressed into said end 9. The hook 3 has a straight segment 12 and an angular segment 4. The hook 3 is attached to the tube 2 in such a way that the central axis 13 of the hook 3 forms an angle of 90°, relative to the vertical central axis of the tube 2.
Back railings are important parts of scaffolds for improving the safety of the personnel working on these scaffolds. In the past these back railings of modular scaffolds consisted, for example, of a tube having a feeding head attached to each of its ends by a wedge. Said wedge was anchored to the perforated disk of the vertical scaffolding tube by the use of a hammer. Said back railing has the disadvantage that the feeding head can only be manufactured at great expense and is adding to the weight of the back railing. In addition to this, tools are needed for the assembly/disassembly of these back railings.
It is therefore an object of the present invention to provide a back railing not showing the disadvantages of the prior art and facilitating an easier assembly.
According to the present invention, said object is achieved by providing a back railing consisting of a tube and two hooks with one of the hooks being attached to each end region of said tube.
The tube may be any tube of any cross-section and any diameter. Preferably the tube has a spherical cross-section with a diameter between 35 mm and 45 mm.
The tube has two hooks attached to it. One of the hooks is attached to each end region of said tube in an arbitrary manner. They can be, for example, screwed, riveted or welded to the tube.
Preferably the hooks are manufactured from any rod-shaped material having an arbitrary cross-section. Particularly preferred the hooks are manufactured from cylinder-shaped material preferably having a diameter of 10-14 mm. Preferably the hooks are manufactured by bending. The hooks may be made from plastic or metal with metal being preferred.
Preferably the hooks are attached to the tube in such a way that the central axis of the hooks forms an angle of 45°-135°, preferably of 75°-115° and more preferably preferred of 85°-95°, relative to the vertical central axis of the tube.
In a preferred embodiment of the present invention the hooks have one straight segment and at least one angular segment, said straight segment having a length of 30-80 mm and said angular segment having a length of 20-60 mm. The angular segment forms an angle of 15°-165°, preferably 45°-135° and more preferably of 85°-95°, relative to the straight segment of the hook.
In a preferred embodiment of the present invention the hook consists of so many short angular segments that the shape of said hook either approximates a circular-bent hook or that the hook is circular-bent.
Also preferred the back railing according to the present invention additionally has suspension sheets to which the hooks are attached. Said suspension sheets are preferably attached to the ends of the tube and are preferably angular-shaped.
In another preferred embodiment of the back railing according to the present invention the ends of the tube are flattened and the hooks are attached to said flattened segments of the tube.
The back railing of the present invention is attached to any scaffold with a matching receiving device, preferably perforated disks with openings, by positioning the lower tip of each hook above one of said openings of one receiving device and by rotating the whole back railing of the present invention around its longitudinal axis and thereby fitting the hooks into the openings and attaching the back railing to the perforated disks in such a way that it cannot come undone. Therefore the process of attaching the back railings of the present invention to a scaffold, preferably a modular scaffold, is also claimed.
This way the back railing can be attached to any perforated disk known to someone skilled in the art, as disclosed, for example, in US 5 605 204, particularly in figure 2, DE-PS-24 49 124, particularly in figures 1 a and 1 b; DE-OS-196 02 737, particularly in figure 1, EP-PS-0 289 825, particularly in figure 3 and in the german application 198 44 612.8 of the applicant, particularly in figures 1 and 2. Said documents are hereby incorporated by reference and become part of the disclosure.
The back railing of the present invention has the advantage that is much easier manufactured than back railings known from the prior art. The back railing of the present invention can easily be assembled by one grasp and without the use of any tools. The back railing of the present invention can be attached to any scaffold having perforated disks. The back railing of the present invention has a lower weight than back railings with a feeding head.
With references to the figures 1-4 the present invention will be illustrated below. The illustrations are only meant to explain the present invention, not to limit its scope.
In the drawings:
Figure 1 shows the back railing of the present invention having a hook attached to its flattened ends.
Figure 2 shows the back railing of the present invention with the hook being attached to a suspension sheet.
Figure 3a and 3b each show an example of the hook.
Figure 4 shows the back railing in its built-in state.
Figure1 illustrates one end of the back railing according to the present invention. The other end of the back railing is identical to this. The tube 2 of the back railing has a diameter of 38 mm and a wall thickness of 1,8 mm and is flattened at its ends.
The hook 3 is pressed into said end 9. The hook 3 has a straight segment 12 and an angular segment 4. The hook 3 is attached to the tube 2 in such a way that the central axis 13 of the hook 3 forms an angle of 90°, relative to the vertical central axis of the tube 2.
The back railing of the present invention is attached to the small openings 6 of the perforated disk 7 of the vertical scaffolding tube 10 in such a way that it cannot come undone. It is obvious to someone skilled in the art that the back railing of the present invention can be attached to the openings of any perforated disk. It is also clear to someone skilled in the art that the back railing of the present invention can also be attached to the big openings 11 of the perforated disk, if the tube 2 is of the respective length.
Figure 2 illustrates one end of the back railing according to the present invention.
The other end of the back railing is identical to this. The tube 2 of the back railing has a diameter of 38 mm and a wall thickness of 1,8 mm. A suspension sheet 8 is welded to the end of the tube 2. The suspension sheet serves as a bearing surface for the back railing of the present invention. The hook 3 is pressed into said suspension sheet 8. The hook 3 has a straight segment 12 and an angular segment 4. The hook 3 is attached to the suspension sheet 8 in such a way that the central axis 13 of the hook 3 forms an angle of 90°, relative to the vertical central axis 5 of the tube 2.
The back railing of the present invention is attached to the small openings 6 of the perforated disk 7 of the vertical scaffolding tube 10 in such way that it cannot come undone. It is obvious to someone skilled in the art that the back railing of the present invention can be attached to the opening of any perforated disk. It is also clear to someone skilled in the art that the back railing of the present invention can also be attached to the big openings 11 of the perforated disk, if the tube 2 is of the respective length.
Figure 3a illustrates an example of the hook according to the present invention. The hook 3 has a straight segment 12 and an angular segment 4, both segments forming an angle of 90°, relative to each other. The hook is bent out of cylindrical-shaped, solid material having a diameter of 12 mm. The straight segment has a length a of 60 mm and the angular segment has a length b of 30 mm. It is known to someone skilled in the art that the hook can also be made from tube-shaped material and that the two segments can also be welded to each other.
Figure 2 illustrates one end of the back railing according to the present invention.
The other end of the back railing is identical to this. The tube 2 of the back railing has a diameter of 38 mm and a wall thickness of 1,8 mm. A suspension sheet 8 is welded to the end of the tube 2. The suspension sheet serves as a bearing surface for the back railing of the present invention. The hook 3 is pressed into said suspension sheet 8. The hook 3 has a straight segment 12 and an angular segment 4. The hook 3 is attached to the suspension sheet 8 in such a way that the central axis 13 of the hook 3 forms an angle of 90°, relative to the vertical central axis 5 of the tube 2.
The back railing of the present invention is attached to the small openings 6 of the perforated disk 7 of the vertical scaffolding tube 10 in such way that it cannot come undone. It is obvious to someone skilled in the art that the back railing of the present invention can be attached to the opening of any perforated disk. It is also clear to someone skilled in the art that the back railing of the present invention can also be attached to the big openings 11 of the perforated disk, if the tube 2 is of the respective length.
Figure 3a illustrates an example of the hook according to the present invention. The hook 3 has a straight segment 12 and an angular segment 4, both segments forming an angle of 90°, relative to each other. The hook is bent out of cylindrical-shaped, solid material having a diameter of 12 mm. The straight segment has a length a of 60 mm and the angular segment has a length b of 30 mm. It is known to someone skilled in the art that the hook can also be made from tube-shaped material and that the two segments can also be welded to each other.
Figure 3b illustrates an example of the hook according to the present invention. The hook 3 has a straight segment 12 and an angular segment 4, both segments forming an angle of 90°, relative to each other. An additional segment 14 is connected to the angular segment 4. The straight segment has a length a of 51 mm, the angular segment has a length b of 45 mm and the additional angular segment has a length c of 5 mm. The hook is bent out of cylindrical-shaped, solid material having a diameter of 12 mm. It is known to someone skilled in the art that the hook can also be made from tube-shaped material and that the two segments can also be welded to each other.
Figure 4 illustrates the back railing of the present invention in its built-in state. The length of the tube 2 is dimensioned in such a way that the back railing can be suspended between two vertical scaffolding tubes 10 of a modular scaffold.
Suspension sheets 8 are welded to each end of the tube 2 and the hooks 3 are attached to said suspension sheets 8.
The back railing 1 is attached to the openings 6 of the perforated disks 7 between two vertical scaffolding tubes 10 in such a way that it cannot come undone.
Figure 4 illustrates the back railing of the present invention in its built-in state. The length of the tube 2 is dimensioned in such a way that the back railing can be suspended between two vertical scaffolding tubes 10 of a modular scaffold.
Suspension sheets 8 are welded to each end of the tube 2 and the hooks 3 are attached to said suspension sheets 8.
The back railing 1 is attached to the openings 6 of the perforated disks 7 between two vertical scaffolding tubes 10 in such a way that it cannot come undone.
Claims (8)
1. Back railing (1) consisting of a tube (2) and two hooks (3) with each of the hooks being attached to the end region of said tube.
2. Back railing according to claim 1, characterized in that the central axis (13) of the hooks (3) form an angle of 45-135° relative to the vertical central axis (5) of the tube (2), with an angle of 75-115° being preferred and an angle of 85-95° being particularly preferred.
3. Back railing according to claim 1 or 2, characterized in that the hook consists of a straight and an angular segment.
4. Back railing according to claim 3, characterized in that the straight segment (12) has a length of between 30 mm and 80 mm and that the angular segment (4) has a length of between 20 mm and 60 mm.
5. Back railing according to claim 3 or 4, characterized in that the hook has an additional angular segment (14), which is connected to the angular segment (4).
6. Back railing according to claims 1-5, characterized in that the tube (2) is flattened at its ends and the hooks are attached to said flattened segments.
7. Back railing according to claims 1-5, characterized in that it additionally has two suspension sheets (8) to which the hooks (3) are attached.
8. A process for suspending the back railings according to claims 1-6, characterized in that each of the tips of the hooks (3) is positioned above one of the openings (6) of the receiving device (7) and fixed to the receiving device by rotating the tube (2) in the receiving device (7).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1998150004 DE19850004A1 (en) | 1998-10-29 | 1998-10-29 | Back railing |
| DE19850004.1 | 1998-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2287040A1 true CA2287040A1 (en) | 2000-04-29 |
Family
ID=7886117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2287040 Abandoned CA2287040A1 (en) | 1998-10-29 | 1999-10-20 | Back railing |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP0997593A1 (en) |
| CA (1) | CA2287040A1 (en) |
| DE (1) | DE19850004A1 (en) |
| PL (1) | PL336286A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2532856A (en) * | 2014-10-06 | 2016-06-01 | George Tate & Son | Scaffolding apparatus and method of use thereof |
| CN118441873A (en) * | 2024-07-08 | 2024-08-06 | 山西省宏图建设集团有限公司 | Socket type key groove type building steel pipe support structure |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2364733C (en) * | 2000-05-12 | 2005-06-29 | David Michael Kelk | Improvements in and relating to builders' trestles |
| WO2002057569A1 (en) * | 2001-01-19 | 2002-07-25 | Günter Rux GmbH | Self-locking railing |
| DE10111976A1 (en) * | 2001-03-13 | 2002-09-19 | Peri Gmbh | Demountable scaffolding, railing element therefor and method for attaching several railing elements |
| DE10128039B4 (en) * | 2001-06-08 | 2010-11-04 | Hünnebeck GmbH | Railing rail for scaffold railing |
| EP2354375A1 (en) | 2010-01-14 | 2011-08-10 | Jerslev Stilladsservice A/S | A scaffolding system |
| DK3012385T3 (en) | 2014-10-20 | 2018-11-26 | Jerslev Stilladsservice As | Scaffolding Safety Railing |
| DE102015213737A1 (en) * | 2015-07-21 | 2017-01-26 | Peri Gmbh | Coupling and scaffolding with such a coupling |
| DE102020118874A1 (en) | 2020-07-16 | 2022-01-20 | Altrad Plettac Assco Gmbh | Leading handrail |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1217583B (en) * | 1958-07-10 | 1966-05-26 | British Building & Engineering | Scaffolding with stackable posts and horizontal transoms |
| FR1393942A (en) * | 1963-08-08 | 1965-03-26 | Device for removable assembly for tubular scaffolding | |
| DE2449124C3 (en) | 1974-10-16 | 1980-01-03 | Eberhard 7129 Gueglingen Layher | Connection device for scaffolding elements |
| NL7801928A (en) * | 1978-02-21 | 1979-08-23 | Hanny Vierkant | COUPLING BETWEEN A UPRIGHT AND A CROSS PART, MORE PARTICULARLY OF A SCAFFOLDING. |
| GB1601897A (en) * | 1978-05-25 | 1981-11-04 | Press Components Ltd | Scaffolding fixings |
| FR2479412A1 (en) * | 1980-03-27 | 1981-10-02 | Select Etem Sa | NODE OF MULTIDIRECTIONAL LINKS FOR BARS OF VARIED CARRIER STRUCTURES |
| DE3715296A1 (en) | 1987-05-08 | 1988-11-17 | Huennebeck Gmbh | NODE FOR SCAFFOLDINGS OD. DGL. |
| ES2068136B1 (en) | 1993-05-04 | 1998-01-16 | Ulma S Coop | PERFECTED MULTIDIRECTIONAL SCAFFOLD. |
| DE9400646U1 (en) * | 1994-01-21 | 1994-07-14 | Schneider, Thomas, 88471 Laupheim | Hanging knot on stick scaffolding |
| DE19602737A1 (en) | 1996-01-26 | 1997-07-31 | Peri Gmbh | Scaffolding knot |
| DE19703558B4 (en) * | 1997-01-31 | 2005-10-27 | Wilhelm Layher Vermögensverwaltungs-Gmbh | Bar equipment for a scaffolding system |
-
1998
- 1998-10-29 DE DE1998150004 patent/DE19850004A1/en not_active Withdrawn
-
1999
- 1999-10-14 EP EP99120426A patent/EP0997593A1/en not_active Withdrawn
- 1999-10-20 CA CA 2287040 patent/CA2287040A1/en not_active Abandoned
- 1999-10-28 PL PL33628699A patent/PL336286A1/en not_active Application Discontinuation
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2532856A (en) * | 2014-10-06 | 2016-06-01 | George Tate & Son | Scaffolding apparatus and method of use thereof |
| CN118441873A (en) * | 2024-07-08 | 2024-08-06 | 山西省宏图建设集团有限公司 | Socket type key groove type building steel pipe support structure |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19850004A1 (en) | 2000-05-04 |
| EP0997593A1 (en) | 2000-05-03 |
| PL336286A1 (en) | 2000-05-08 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |