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US20100032240A1 - Flexible trap door - Google Patents

Flexible trap door Download PDF

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Publication number
US20100032240A1
US20100032240A1 US12/446,855 US44685507A US2010032240A1 US 20100032240 A1 US20100032240 A1 US 20100032240A1 US 44685507 A US44685507 A US 44685507A US 2010032240 A1 US2010032240 A1 US 2010032240A1
Authority
US
United States
Prior art keywords
trap door
closing
caused
opening
rubber
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
Application number
US12/446,855
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English (en)
Inventor
Ricardo Rodriguez Fernandez
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of US20100032240A1 publication Critical patent/US20100032240A1/en
Abandoned legal-status Critical Current

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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

Definitions

  • the object of the present invention refers to a flexible trap door for access platforms.
  • the EN-12810-1 2003 scaffolding Standard considers two ways to pass from one level to another:
  • the free dimensions of the access opening on a platform shall be at least 0.45 m in width, measured transversally across the platform and 0.60 m in length. If it were not possible to close the opening by means of a permanently attached trap door, a protective guardrail must be able to be fitted. The trap door shall be lockable in the closed position”.
  • the load stipulated by the EN 12811-1 2003 Standard corresponds to class 3, that is to say, 2.0 KN/m 2 .
  • the present invention refers to a flexible trap door fastened to an access platform, that, when pushed by the worker's helmet, opens by rolling up and stays open while passing through the hole. Closing is “automatically” and progressively caused once the worker has gone through. Once closed, it may be used as a work surface, since it is strengthened by a cross-directional rigid reinforcement, allowing it to support the working load.
  • This flexible trap may be used for access platforms in general and more preferably for scaffolding access platforms.
  • the trap door consists of a flexible, lengthwise rubber plate, cross-directionally reinforced inside, which enables it to open and support the working load of 2.0 KN/m 2 stipulated by the EN 12811-1 2003 Standard.
  • the materials that may be used are very varied, but have to fulfil the following requirements:
  • Non-slip upper surface since it is to be used as a work surface and walkway.
  • Variable flexibility more flexible at the front and less nearer its fastening point to the access platform, in order to facilitate its opening and guarantee self-closing.
  • the quantity may be continuously cast or laminated, both in one direction as the other.
  • the continuous lamination must be with heat in the remoulding process, so that the crosswise reinforcement sticks to the rubber.
  • FIG. 1 Trap door opening lengthwise along the platform.
  • FIG. 2 Trap door opening crosswise across the platform.
  • FIG. 3 Flexible trap door: rubber body ( 1 ), access platform ( 2 ), rigid cross-directional reinforcement ( 3 ), tape ( 4 ) and lock ( 5 ).
  • FIG. 4 Upwards sequence from one level to another.
  • FIG. 5 Downwards sequence from one level to another.
  • FIG. 6 Cross-directional reinforcement.
  • FIG. 7 Initial section of the flexible trap door according to an embodiment method.
  • FIG. 8 End section of the flexible trap door according to an embodiment method.
  • FIG. 9 Arrangement of the flexible trap door according to an embodiment method.
  • the flexible trap door is fastened to the access platform ( 2 ) that opens by rolling up when pushed by the worker's helmet and stays open while they pass through the hole. Closing “automatically” and progressively takes place once the worker has gone through. Once closed, it may be used as a work surface, since it is strengthened by a cross-directional rigid reinforcement ( 3 ), allowing it to support the working load.
  • FIG. 6 shows a possible cross-directional reinforcement, which would be made up of round aluminium pipes with an inner diameter (D) of 5 mm, 1.5 mm (E 1 ) thick and 1.5 ⁇ 2 mm (E 2 ⁇ E 3 ) flaps.
  • FIG. 7 shows an example of configuration that would be made up of a silicon rubber body ( 1 ) with an inner polyester ( 6 ) mesh, 14 mm (E 4 ) thick, with recesses of variable thickness ( 7 ) and transversely strengthened by the reinforcement ( 3 ), separated by a length (L) of 30 mm.
  • FIG. 8 shows the end section of the trap door, finishing off in drill-holes ( 8 ) to fasten it to the access platform with a diameter of 12 mm and a reinforcing flat bar ( 9 ).
  • FIG. 9 shows the arrangement of elements on a 650 mm-long (H), 550 m-wide (A) trap door, displaying the typical profile of an access platform ( 2 ).

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)
US12/446,855 2006-12-11 2007-09-26 Flexible trap door Abandoned US20100032240A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
ES200603128A ES2277793B1 (es) 2006-12-11 2006-12-11 Trampilla flexible para plataforma de acceso de andamios.
ESP200603128 2006-12-11
PCT/EP2007/008355 WO2008071246A1 (fr) 2006-12-11 2007-09-26 Trappe souple pour plates-formes d'accès

Publications (1)

Publication Number Publication Date
US20100032240A1 true US20100032240A1 (en) 2010-02-11

Family

ID=38330868

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/446,855 Abandoned US20100032240A1 (en) 2006-12-11 2007-09-26 Flexible trap door

Country Status (7)

Country Link
US (1) US20100032240A1 (fr)
EP (1) EP2102431B1 (fr)
CN (1) CN101558211B (fr)
AT (1) ATE470032T1 (fr)
DE (1) DE602007006992D1 (fr)
ES (1) ES2277793B1 (fr)
WO (1) WO2008071246A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120037452A1 (en) * 2010-08-11 2012-02-16 Tim Copeland Vertical enclosure safety apparatus
US20150034418A1 (en) * 2013-08-02 2015-02-05 Sam Carbis Asset Management, Llc Platform safety enclosure
US20180171649A1 (en) * 2016-12-19 2018-06-21 Kevin Jury Void platform and a method for providing a platform support across a building void
US20180217855A1 (en) * 2011-01-14 2018-08-02 Google Inc. Estimating wait times for requests
US10309076B2 (en) 2016-04-05 2019-06-04 Access Industrial Inc. Safety landing
US20210108426A1 (en) * 2019-05-22 2021-04-15 Voideck Ipco Limited Void Platforms
US12163373B2 (en) 2021-05-19 2024-12-10 Gregory R. Meizinger Access door assembly and related methods

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2472844A (en) * 2009-08-21 2011-02-23 Promote Products Ltd Scaffold board
CN104379853A (zh) * 2012-06-26 2015-02-25 福姆700私人有限公司 用于攀爬网罩的改进框架
SG11201501888QA (en) 2012-09-17 2015-04-29 Peri Gmbh Climb-through plank for scaffolding
JP7063158B2 (ja) * 2018-07-11 2022-05-09 住友金属鉱山株式会社 保全シート

Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US683264A (en) * 1900-12-13 1901-09-24 John Madison Flemister Portable table.
US3091221A (en) * 1961-11-02 1963-05-28 Alan F Worm Animal hatch
US3246564A (en) * 1962-04-26 1966-04-19 John F Chieffe Protective lightway for fallout shelters
US3454131A (en) * 1968-01-26 1969-07-08 Up Right Inc Scaffold
US3565212A (en) * 1969-11-14 1971-02-23 Up Right Inc Combination beam support and latch means for walk-through platform
US3690299A (en) * 1971-03-29 1972-09-12 Frances H Johnson Pet door apparatus
US3837427A (en) * 1972-05-12 1974-09-24 Thomas Ltd Martin Builders{40 {11 staging
US4151894A (en) * 1977-10-17 1979-05-01 Edwards Robert A Insulating cover for pull down stair
US4234973A (en) * 1979-04-30 1980-11-25 Vetter Design Works, Inc. Tub cover
US4253549A (en) * 1977-11-15 1981-03-03 Petren Rolf A M Method and a system for the erection of high buildings
US4337602A (en) * 1980-04-18 1982-07-06 King Richard P Enclosure
US4568587A (en) * 1981-09-25 1986-02-04 Balco, Inc. Roll-up floor mat with rigid rails
US4591022A (en) * 1984-12-04 1986-05-27 Sciambi Orlando L Insulating enclosure for a ceiling opening
US4671028A (en) * 1984-08-07 1987-06-09 Figone Frank M Intrinsically hinged load member
US4766975A (en) * 1987-09-08 1988-08-30 Whitson Frederick A Collapsible scaffolding
US5103934A (en) * 1990-10-15 1992-04-14 Brooks Van L Method and apparatus for providing a fire escape for a multi-story building
US5220757A (en) * 1991-10-15 1993-06-22 Colorcraft, Inc. Thermal stairway cover
US5475955A (en) * 1993-12-30 1995-12-19 Dickinson; Thomas C. Insulating system for attic stairs and the like
US5535804A (en) * 1994-10-05 1996-07-16 Guest; Robert J. Pet door kit
US5628151A (en) * 1994-11-15 1997-05-13 Monat; Alan N. Multipocket means for holding insulation to prevent heat loss through an attic stairwell
US5746289A (en) * 1995-05-22 1998-05-05 Excel Modular Scaffold And Leasing Corporation Scaffold hatch system
USRE36975E (en) * 1994-11-16 2000-12-05 Williams; Steve L. Attic hatchway cover
US6443262B1 (en) * 1999-12-30 2002-09-03 Waco International Corporation Tubular frame scaffolding
US20050077107A1 (en) * 2003-09-29 2005-04-14 Libert Scott D. Scaffold system with telescoping access ladder and resiliently hinged scaffold access hatch deck
US7228668B2 (en) * 2003-06-25 2007-06-12 Drg, Llc Protective covering and method of manufacturing

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191025799A (en) * 1910-11-07 1911-03-16 Fransis Henry Bisson Improvements in Ships Hatch Coverings.
FR1248574A (fr) * 1959-11-06 1960-12-16 Rideau rigide enroulable, applicable notamment comme panneau d'écoutille
DE6915832U (de) * 1969-04-19 1969-09-11 Eberhard Layher Geruestrahmentafel
IT1135639B (it) * 1981-03-06 1986-08-27 Pirelli Nastro trasportatore ed impianto di trasporto incorporante detto nastro
US5332021A (en) * 1991-09-11 1994-07-26 Todd John M Flexible retractable door
JPH04336161A (ja) * 1991-05-14 1992-11-24 Ohbayashi Corp 枠組足場
CN2138675Y (zh) * 1992-09-30 1993-07-21 高国起 上料平台自动关闭安全防护机构
JP2565660B2 (ja) * 1994-05-31 1996-12-18 バンドー化学株式会社 繊維補強弾性体及びそれを用いた伝動ベルト
FR2729693B3 (fr) * 1995-01-20 1997-09-19 Realisations Roux Soc Et Trappe de securite a garde-corps automatique
FR2789420A1 (fr) * 1999-02-05 2000-08-11 Altrad Dev Plate-forme d'echafaudage avec trappe d'acces pour la construction de paroi verticale
CN1246606C (zh) * 1999-04-19 2006-03-22 坂东化学株式会社 传动带及其制法
DE10208831A1 (de) * 2002-03-05 2003-09-18 Uti Holding & Man Ag Gerüstplatte
CN2703743Y (zh) * 2004-06-07 2005-06-08 方建新 平台自动门结构

Patent Citations (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US683264A (en) * 1900-12-13 1901-09-24 John Madison Flemister Portable table.
US3091221A (en) * 1961-11-02 1963-05-28 Alan F Worm Animal hatch
US3246564A (en) * 1962-04-26 1966-04-19 John F Chieffe Protective lightway for fallout shelters
US3454131A (en) * 1968-01-26 1969-07-08 Up Right Inc Scaffold
US3565212A (en) * 1969-11-14 1971-02-23 Up Right Inc Combination beam support and latch means for walk-through platform
US3690299A (en) * 1971-03-29 1972-09-12 Frances H Johnson Pet door apparatus
US3837427A (en) * 1972-05-12 1974-09-24 Thomas Ltd Martin Builders{40 {11 staging
US4151894A (en) * 1977-10-17 1979-05-01 Edwards Robert A Insulating cover for pull down stair
US4253549A (en) * 1977-11-15 1981-03-03 Petren Rolf A M Method and a system for the erection of high buildings
US4234973A (en) * 1979-04-30 1980-11-25 Vetter Design Works, Inc. Tub cover
US4337602A (en) * 1980-04-18 1982-07-06 King Richard P Enclosure
US4568587A (en) * 1981-09-25 1986-02-04 Balco, Inc. Roll-up floor mat with rigid rails
US4671028A (en) * 1984-08-07 1987-06-09 Figone Frank M Intrinsically hinged load member
US4591022A (en) * 1984-12-04 1986-05-27 Sciambi Orlando L Insulating enclosure for a ceiling opening
US4766975A (en) * 1987-09-08 1988-08-30 Whitson Frederick A Collapsible scaffolding
US5103934A (en) * 1990-10-15 1992-04-14 Brooks Van L Method and apparatus for providing a fire escape for a multi-story building
US5220757A (en) * 1991-10-15 1993-06-22 Colorcraft, Inc. Thermal stairway cover
US5475955A (en) * 1993-12-30 1995-12-19 Dickinson; Thomas C. Insulating system for attic stairs and the like
US5535804A (en) * 1994-10-05 1996-07-16 Guest; Robert J. Pet door kit
US5628151A (en) * 1994-11-15 1997-05-13 Monat; Alan N. Multipocket means for holding insulation to prevent heat loss through an attic stairwell
USRE36975E (en) * 1994-11-16 2000-12-05 Williams; Steve L. Attic hatchway cover
US5746289A (en) * 1995-05-22 1998-05-05 Excel Modular Scaffold And Leasing Corporation Scaffold hatch system
US6443262B1 (en) * 1999-12-30 2002-09-03 Waco International Corporation Tubular frame scaffolding
US7228668B2 (en) * 2003-06-25 2007-06-12 Drg, Llc Protective covering and method of manufacturing
US20050077107A1 (en) * 2003-09-29 2005-04-14 Libert Scott D. Scaffold system with telescoping access ladder and resiliently hinged scaffold access hatch deck

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20120037452A1 (en) * 2010-08-11 2012-02-16 Tim Copeland Vertical enclosure safety apparatus
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
US20150034418A1 (en) * 2013-08-02 2015-02-05 Sam Carbis Asset Management, Llc Platform safety enclosure
US9409755B2 (en) * 2013-08-02 2016-08-09 Sam Carbis Asset Management, Llc Platform safety enclosure
US10309076B2 (en) 2016-04-05 2019-06-04 Access Industrial Inc. Safety landing
US20180171649A1 (en) * 2016-12-19 2018-06-21 Kevin Jury Void platform and a method for providing a platform support across a building void
US20210108426A1 (en) * 2019-05-22 2021-04-15 Voideck Ipco Limited Void Platforms
US12163373B2 (en) 2021-05-19 2024-12-10 Gregory R. Meizinger Access door assembly and related methods

Also Published As

Publication number Publication date
EP2102431B1 (fr) 2010-06-02
ES2277793A1 (es) 2007-07-16
CN101558211A (zh) 2009-10-14
EP2102431A1 (fr) 2009-09-23
DE602007006992D1 (de) 2010-07-15
ATE470032T1 (de) 2010-06-15
ES2277793B1 (es) 2008-03-01
CN101558211B (zh) 2011-06-15
WO2008071246A1 (fr) 2008-06-19

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Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION