CN101558211B - Flexible trap door for access platforms - Google Patents
Flexible trap door for access platforms Download PDFInfo
- Publication number
- CN101558211B CN101558211B CN200780039404XA CN200780039404A CN101558211B CN 101558211 B CN101558211 B CN 101558211B CN 200780039404X A CN200780039404X A CN 200780039404XA CN 200780039404 A CN200780039404 A CN 200780039404A CN 101558211 B CN101558211 B CN 101558211B
- Authority
- CN
- China
- Prior art keywords
- valve
- rubber
- closing
- flexible trap
- terrace
- 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.)
- Expired - Fee Related
Links
- 229920001971 elastomer Polymers 0.000 claims abstract description 15
- 239000005060 rubber Substances 0.000 claims abstract description 15
- 230000002787 reinforcement Effects 0.000 claims abstract 2
- 238000000034 method Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 239000004411 aluminium Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 244000043261 Hevea brasiliensis Species 0.000 description 1
- 239000005062 Polybutadiene Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-N acetic acid Substances CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 1
- 229920000800 acrylic rubber Polymers 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229920005549 butyl rubber Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- -1 vinyl ethylene-acetate Chemical compound 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Images
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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
-
- 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
- E04G1/00—Scaffolds primarily resting on the ground
- E04G1/15—Scaffolds primarily resting on the ground essentially comprising special means for supporting or forming platforms; Platforms
- E04G2001/155—Platforms with an access hatch for getting through from one level to another
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
- Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Tea And Coffee (AREA)
Abstract
Self-closing, flexible trap door for access platforms, enabling its use as a work surface, consisting of a rubber body (1), fixed to the access platform (2), strengthened by a cross-directional rigid reinforcement (3), fitted with a tape (4) to facilitate opening and a lock (5) when being transported and assembled. Closing is caused by the pressure of the rubber. Additionally, the closing is caused by an externally-driven mechanism or by means of magnets.
Description
Technical field
The present invention relates to a kind of flexible trap (trap door) that is used for terrace at entrance (access platform).
Background technology
One of current most important theme is exactly the safety that guarantees the worker.All members of society all in the quantity of making great efforts the minimizing accident, the most important thing is to reduce the industry that negative records is often arranged---the accident quantity in the building trade.
Consider this point, the safety that improves scaffold directly helps to reduce accident rate, and this is because 70% accident all causes owing to dropping from differentiated levels.
EN-12810-1 2003 scaffold standards have been considered two kinds of modes that arrive another level height from a level height:
-by the stepladder that passes terrace at entrance
-by the inlet stair
EN 12811-1 standard spells out in the 5.8.3 point:
" free size of the inlet on the platform should have the width of 0.45m at least, and this width crosses platform to be measured, and has the length of 0.6m.If can not close this opening, then must the protectiveness guardrail can be installed by the valve of permanent connection.Valve should be lockable in fastening position ".
Can see two types valve on the market:
A) vertically open (Fig. 1) along platform
B) laterally open (Fig. 2) along platform
Therefore in both cases, all be manual unlocking, and when climbing, need use at least one hand, reduced the safety when stepladder is climb.
Closing should differentiated treatment:
In situation (a), need to shorten (foreshortening), because when one is directed downwards away, because arm is in above-head along another direction, so door must stay open.In addition, according to the length of platform, door can hinder the further part of ladder.
In situation (b), aperture position does not allow greater than 90 °, because will be caused by " gravity " and close, when valve is rigidity, heavy element, this will cause accident.
Staff on the scaffold holds instrument usually in hand, and if desired along ladder climb 40m or longer distance, and to open and close door, a few thing personnel make progress away and other staff walk downwards, then will consider door is always opened.
In situation (a), simply door is not closed, for the following fold plane of the valve on leaning against top (it is to trample part), this makes worse off.
In situation (b), perhaps force to keep door to open, thereby door do not close, this makes hinge break down; Perhaps utilize wire to fasten and keep a unlatching.
Situation (a) is modal.
In both of these case, valve is made by two kinds of materials usually: veneer, aluminium sheet.
The load of EN 12811-12003 standard (6.2.4 point) regulation is corresponding with grade 3, that is to say 2.0KN/m
2
Summary of the invention
The present invention relates to a kind of flexible trap that is anchored on terrace at entrance, that is, when staff's the helmet promoted this valve, valve was opened by rolling, and stayed open in the staff passes the process in hole.In case the staff has passed valve, valve " automatically " and little by little closing then.In case close, because valve is strengthened by horizontal rigidity fixture, make valve support works to load, so just can be used as working surface, uses at valve.
In order to open valve from the top, valve has belt, and the staff utilizes this belt that valve is semi-open, then pin is placed on first step of ladder, and opens valve downwards when walking.When not using, valve has lock, opens when transporting and assemble to avoid valve.
Usually, this flexible trap can be used for terrace at entrance, more preferably, can be used for the scaffold terrace at entrance.
This valve by flexible, vertically rubber tile constitutes, and in inside along transversely strengthening, this can make valve open and support the 2.0KN/m of EN 12811-1 2003 prescribed by standard
2Live load.Various materials can be used, but following requirement must be satisfied:
Rubber
-opposing environmental factor (UVA ray, temperature, humidity ...) is because scaffold generally uses out of doors.
-non-slip upper surface is because upper surface will be as working surface and aisle.
-flexible variable, the some place that the anterior flexible close more greatly and more valve of valve is anchored on terrace at entrance is then flexible less, and this is to open and guarantee its self closing for the ease of valve.
-valve should be resisted chemical factor and demonstrate certain refractory ability (fire prevention), especially when scaffold uses in industrial occasions.
-maximum ga(u)ge 15mm.
Fixture
-they are that largest interval is the profile of 4cm.
-they must be light as much as possible, so that open and can not cause too much weight to be applied on the terrace at entrance unit.
-it should bear 2.0KN/m
2Live load, and maximum flexion (flexion) for 12mm to guarantee that when trampling safe sensation is arranged.
Available rubber:
-contain or do not have the natural rubber of additive
-isoprene
-chlorobutadiene
-polybutadiene
-butyl rubber
-acrylic rubber
-polyethylene rubber
-silicon (rubber)
-poly-sulphur (rubber)
-ethane-acetic acid ethyenyl (vinyl ethylene-acetate) (rubber)
-fluoridize (Fluorade) (rubber) ... etc.
And they may make up
Available fixture:
-carbon fiber
-glass fiber
-aluminium
-copper
-brass
-steel
-timber
-differently contoured and/or interconnective composition has formed net or chain.
The shape of these profiles can be:
The tubulose of-circle, square or rectangle
-T shape
-I shape
-triangle, etc.
Process:
According to quantity, both can cast or lamination continuously along a direction.Continuous being laminated to must utilize heat to carry out in the remodeling process, so that horizontal fixture adheres on the rubber.
Description of drawings
Fig. 1: the valve of vertically opening along platform.
Fig. 2: the valve of laterally opening along platform.
Fig. 3: flexible trap: the fixture 3 of rubber bodies 1, terrace at entrance 2, rigid transverse, belt 4 and lock 5.
Fig. 4: the order that makes progress away from a level height to another level height.
Fig. 5: the order of walking downwards from a level height to another level height.
Fig. 6: horizontal fixture.
Fig. 7: according to the start-up portion of the flexible trap of embodiment.
Fig. 8: according to the end portion of the flexible trap of embodiment.
Fig. 9: according to the layout of the flexible trap of embodiment.
The specific embodiment
In a preferred embodiment of the invention, in identical mode as shown in Figure 3, flexible trap is fastened to terrace at entrance 2, and when being promoted by staff's the helmet, this valve is opened, and passes in the process in hole the staff, and valve is held open.In case the staff has passed through valve, valve " automatically " and little by little closing then.In case close, because valve strengthened by horizontal rigidity fixture 3, thereby allow valve support works load, so just can be used as working surface, uses at valve.
In order to open valve from the top, it has belt 4, and the staff utilizes this belt to make valve semi-open, then a pin is placed on first step of ladder, and opens valve downwards and open when walking.
When not in use, valve has lock 5, opens when transporting and assemble to avoid valve.
Fig. 6 shows spendable transversely strengthening thing, this fixture will by inside diameter D be 5mm, thickness E 1 for 1.5mm and wing limit E2 * E3 be that the circular aluminum pipe of 1.5 * 2mm forms.
Fig. 7 shows the structure example that is formed by silicon rubber body 1, wherein has thickness E 4 recesses 7 for the interior polyester webs 6 of 14mm, variable thickness, and this structure is that the fixture 3 of 30mm is laterally strengthened by being separated with length L.
Fig. 8 shows the end portion of valve, its end to be used for valve be fastened to terrace at entrance, diameter is the boring 8 of 12mm and reinforces flat bar 9.
It is that 650mm, width A are the arrangements of elements on the valve of 550mm that Fig. 9 shows length H, and it shows the representative profiles of terrace at entrance 2.
Claims (3)
1. be used for the self closing flexible trap scaffold terrace at entrance, the available work surface, described valve comprises the rubber bodies that is fastened to described terrace at entrance, and by horizontal rigidity fixture reinforcement, and be equipped with and be convenient to the lock opening the belt of described valve and being used to when transport and assemble, the pressure of closing by rubber of described valve causes.
2. flexible trap according to claim 1 is characterized in that, the pressure by rubber of closing of described valve causes to replace with to close by external drive mechanism and causes.
3. flexible trap according to claim 1 is characterized in that, the pressure by rubber of closing of described valve causes to replace with to close by magnetic attracting force and causes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ESP200603128 | 2006-12-11 | ||
| ES200603128A ES2277793B1 (en) | 2006-12-11 | 2006-12-11 | FLEXIBLE TRAMPET FOR ANDAMIOS ACCESS PLATFORM. |
| PCT/EP2007/008355 WO2008071246A1 (en) | 2006-12-11 | 2007-09-26 | Flexible trap door for access platforms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101558211A CN101558211A (en) | 2009-10-14 |
| CN101558211B true CN101558211B (en) | 2011-06-15 |
Family
ID=38330868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200780039404XA Expired - Fee Related CN101558211B (en) | 2006-12-11 | 2007-09-26 | Flexible trap door for access platforms |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20100032240A1 (en) |
| EP (1) | EP2102431B1 (en) |
| CN (1) | CN101558211B (en) |
| AT (1) | ATE470032T1 (en) |
| DE (1) | DE602007006992D1 (en) |
| ES (1) | ES2277793B1 (en) |
| WO (1) | WO2008071246A1 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2472844A (en) * | 2009-08-21 | 2011-02-23 | Promote Products Ltd | Scaffold board |
| US9133629B2 (en) * | 2010-08-11 | 2015-09-15 | Tim Copeland | Vertical enclosure safety apparatus |
| US20180217855A1 (en) * | 2011-01-14 | 2018-08-02 | Google Inc. | Estimating wait times for requests |
| WO2014041184A1 (en) | 2012-09-17 | 2014-03-20 | Peri Gmbh | Climb-through plank for scaffolding |
| US9409755B2 (en) * | 2013-08-02 | 2016-08-09 | Sam Carbis Asset Management, Llc | Platform safety enclosure |
| CA2963261C (en) | 2016-04-05 | 2020-07-28 | Access Industrial Inc. | Safety landing |
| AU2017202444B2 (en) * | 2016-12-19 | 2019-06-20 | Voideck Ipco Limited | A void platform and a method for providing a platform support across a building void |
| JP7063158B2 (en) * | 2018-07-11 | 2022-05-09 | 住友金属鉱山株式会社 | Maintenance sheet |
| NZ764598A (en) * | 2019-05-22 | 2024-07-05 | Voideck Ipco Ltd | Improvements relating to void platforms |
Citations (6)
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|---|---|---|---|---|
| GB191025799A (en) * | 1910-11-07 | 1911-03-16 | Fransis Henry Bisson | Improvements in Ships Hatch Coverings. |
| CN2138675Y (en) * | 1992-09-30 | 1993-07-21 | 高国起 | Automatic safety protective mechanism for material delivering platform |
| FR2729693A1 (en) * | 1995-01-20 | 1996-07-26 | Realisations Roux Soc Et | Scaffolding safety hatch with automatic guard rail for use on building sites |
| EP1098110A1 (en) * | 1999-04-19 | 2001-05-09 | Bando Chemical Industries, Ltd. | Transmission belt and method for manufacturing the same |
| DE10208831A1 (en) * | 2002-03-05 | 2003-09-18 | Uti Holding & Man Ag | Scaffold board made from thermoplastic has core with e.g. honeycomb structure which is bound to top and bottom sheets, edges of board being made by molding core into U-profile |
| CN2703743Y (en) * | 2004-06-07 | 2005-06-08 | 方建新 | Platform automatic door structure |
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-
2006
- 2006-12-11 ES ES200603128A patent/ES2277793B1/en active Active
-
2007
- 2007-09-26 AT AT07818439T patent/ATE470032T1/en not_active IP Right Cessation
- 2007-09-26 DE DE602007006992T patent/DE602007006992D1/en active Active
- 2007-09-26 EP EP07818439A patent/EP2102431B1/en active Active
- 2007-09-26 US US12/446,855 patent/US20100032240A1/en not_active Abandoned
- 2007-09-26 CN CN200780039404XA patent/CN101558211B/en not_active Expired - Fee Related
- 2007-09-26 WO PCT/EP2007/008355 patent/WO2008071246A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191025799A (en) * | 1910-11-07 | 1911-03-16 | Fransis Henry Bisson | Improvements in Ships Hatch Coverings. |
| CN2138675Y (en) * | 1992-09-30 | 1993-07-21 | 高国起 | Automatic safety protective mechanism for material delivering platform |
| FR2729693A1 (en) * | 1995-01-20 | 1996-07-26 | Realisations Roux Soc Et | Scaffolding safety hatch with automatic guard rail for use on building sites |
| EP1098110A1 (en) * | 1999-04-19 | 2001-05-09 | Bando Chemical Industries, Ltd. | Transmission belt and method for manufacturing the same |
| DE10208831A1 (en) * | 2002-03-05 | 2003-09-18 | Uti Holding & Man Ag | Scaffold board made from thermoplastic has core with e.g. honeycomb structure which is bound to top and bottom sheets, edges of board being made by molding core into U-profile |
| CN2703743Y (en) * | 2004-06-07 | 2005-06-08 | 方建新 | Platform automatic door structure |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平4-336161A 1992.11.24 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101558211A (en) | 2009-10-14 |
| US20100032240A1 (en) | 2010-02-11 |
| DE602007006992D1 (en) | 2010-07-15 |
| ES2277793B1 (en) | 2008-03-01 |
| EP2102431B1 (en) | 2010-06-02 |
| EP2102431A1 (en) | 2009-09-23 |
| ATE470032T1 (en) | 2010-06-15 |
| WO2008071246A1 (en) | 2008-06-19 |
| ES2277793A1 (en) | 2007-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20160926 |