EP1035268A2 - Escalier à moteur - Google Patents

Escalier à moteur Download PDF

Info

Publication number
EP1035268A2
EP1035268A2 EP00104744A EP00104744A EP1035268A2 EP 1035268 A2 EP1035268 A2 EP 1035268A2 EP 00104744 A EP00104744 A EP 00104744A EP 00104744 A EP00104744 A EP 00104744A EP 1035268 A2 EP1035268 A2 EP 1035268A2
Authority
EP
European Patent Office
Prior art keywords
stairs
stair
articulated
guide
crank
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
Application number
EP00104744A
Other languages
German (de)
English (en)
Other versions
EP1035268A3 (fr
EP1035268B1 (fr
Inventor
Ming Dr. Gao
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
Priority claimed from DE1999110806 external-priority patent/DE19910806A1/de
Application filed by Individual filed Critical Individual
Publication of EP1035268A2 publication Critical patent/EP1035268A2/fr
Publication of EP1035268A3 publication Critical patent/EP1035268A3/fr
Application granted granted Critical
Publication of EP1035268B1 publication Critical patent/EP1035268B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F11/00—Stairways, ramps, or like structures; Balustrades; Handrails
    • E04F11/02—Stairways; Layouts thereof
    • E04F11/04—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible
    • E04F11/06—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic
    • E04F11/062—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding
    • E04F11/064—Movable stairways, e.g. of loft ladders which may or may not be concealable or extensible collapsible, e.g. folding, telescopic folding with stringers overlapping when folded

Definitions

  • the present invention relates to stairs, in particular motorized stairs, which often used as access to attics or false ceilings.
  • Floor stairs are usually used to make attics, flat roofs or others to achieve structural systems.
  • the well-known stairs are with a hatch cover provided and foldable, retractable or collapsible so that they are in one Hatch frames can be stowed.
  • the floor stairs can be divided into three Groups can be divided: scissor stairs, retractable stairs and foldable stairs.
  • the three-part foldable stairs are because of their simple construction and the associated low manufacturing costs and because of their small footprint most used. But a motorized three-part foldable staircase is mine not known.
  • the main problem with motorized stairs is the simple coupling opening the hatch cover with unfolding or extending the stairs in the manner that the unfolding of the stair parts or extending the scissor stairs or the Stair parts only take place after opening the hatch cover and closing the Hatch cover only after folding the stair parts or after retracting the scissor stairs or parts of the stairs begin.
  • Another object of this invention is to develop high constructions Stress on the gearbox and the motor while using the stairs or Avoid moving the stairs up to their use position.
  • Another important object of this invention is to provide a transmission for coupling opening the hatch cover with unfolding or extending the stairs develop, the unfolding of the stair parts or extending the scissor stairs or the stair parts only after opening the hatch cover and that Only close the hatch cover after folding the stair parts or after retracting the scissor staircase or parts of the staircase begins.
  • Another object of this invention is to provide a measure to avoid Dead positions of the normally used four-link transmission when unfolding and to fold up the stair parts to find.
  • the invention provides a four-bar transmission for coupling two articulated to each other connected stair parts.
  • the upper stair part in use is that Drive link in the four-link mechanism, the lower part of the staircase in use Coupling link, the false ceiling or the fitting attached to it or the The top part of the stairway, or the one attached to it, normally attached to the hatch cover Fitting the frame and a two-joint link the output link.
  • the output member can as Handrail of the stairs can be constructed as shown in one embodiment is.
  • the invention presents a construction in which there is no stress during the use of the Stairs or no higher loads during the extension of the stairs in the gearbox and occurs in the engine.
  • the construction is a crank with a guideway on which directly drives the linear motor or an equivalent drive using a pin.
  • the guideway is constructed so that the pin is in the state of use of the stairs not normally located at the end of the guideway. This ensures that none or no higher stress occurs in the transmission and in the engine and that the Ceiling height can be adjusted by changing the slope of the stairs.
  • the drive rod is a two-bar link and that other end of this link is articulated to an arm of the bell crank, which hinged to the cheek of the frame by means of a fitting and by one Linear motor is driven.
  • This drive rod can also be a linear motor or an equivalent drive. Its other end is articulated on the cheek of the frame, preferably by means of a Fitting attached.
  • this drive rod is only tensile.
  • the above Two-joint link can be replaced by a rope, the linear motor by a rope pull.
  • the floor stairs be provided with a stable hatch cover become.
  • a stable metal frame can also be used instead.
  • foldable and retractable stairs can also use all mechanisms including the above described coupling system directly on the top in use Stair part to be attached.
  • this sliding crank chain is that shown in one embodiment Slider crank gear. If you open the hatch cover and unfold the stairs wants to drive separately by two linear motors, the linear motor for the Unfold the stairs directly between the stair parts. This is another embodiment of this slider crank chain.
  • the possible smallest value of the starting angle is both from the construction of the Gearbox and depending on the coefficient of friction in the joints and lies usually between 20 ° and 30 °.
  • a large starting angle is favorable for that Transmission and power transmission of the transmission, but is usually by the The length of the hatches is limited.
  • 1, 2 and 3 is a three-part foldable floor staircase with stair parts 3, 4 and 5 shown on a sheet cover 2, by the fittings 8 is suspended on both sides by means of two rockers 6 and 7 on the frame cheek 1.
  • the opening of the hatch cover is limited by the two Frame cheeks attached pins 25, which prevent the further extension of the rods 9 and also carry the load during use.
  • the hatch cover 2 is the top one Stair part 3 fastened by means of the spacers 26.
  • Two linear guides 12 each a sliding block 13 are also attached to the hatch cover 2.
  • the sliding blocks 13 are connected to each other by the flat steel 18.
  • a sliding block 13 is through a Two-joint member 15 driven. This link 15 has an angle ⁇ ( ⁇ ⁇ 90 °) opposite the linear guide 12 and is attached to the frame cheek 1 by an angle lever 16 driven, which in turn is driven by an electric linear motor 17.
  • An inadvertent lowering of the hatch cover 2 from the stowed state can usually be done either by using a self-locking linear motor 17 or by a formed between the two-joint member 15 and the angle lever 16, self-locking gear can be avoided.
  • This self-locking of the gearbox can also by briefly tightening or pressing the angle lever 16, e.g. B. by means of a Cable can be solved, so that the stairs even in the event of a power failure or motor failure remains manually operable.
  • the middle stair part 4 is articulated to the uppermost stair part 3. His Movement is by a two-joint link 19 to the movement of the sliding block 13 coupled.
  • ⁇ is an initial angle between the two stair parts 3 and 4, so that the intermediate crank mechanism and the four-bar gearbox for coupling the stair parts 4 and 5 is not in their dead positions can guess.
  • the generation of this initial angle ß can by different Methods can be realized and is simple. For example, the fittings can be between the stair parts are designed so that this angle is created.
  • the two-joint link can be used to avoid stairs or while extending the stairs 15 or the two-joint link 19 can be designed so that when it is exceeded a predetermined elastic force causes a large elastic deformation.
  • one of the two-articulated members can be tensioned by a gas spring be replaced. Another advantage of this design is that the motor regardless of the ceiling height, always switched off by its built-in limit switches can be.
  • the bottom stair part 5 is on the one hand directly articulated with the middle stair part 4 and on the other hand by means of a two-joint link 22, which acts as the lower railing of the stairs is formed (the upper railing attached directly to the hatch cover 2 is not shown), connected to the uppermost stair part 3.
  • a two-joint link 22 acts as the lower railing of the stairs is formed (the upper railing attached directly to the hatch cover 2 is not shown), connected to the uppermost stair part 3.
  • This is what creates it Four-link mechanism, so that the unfolding and folding of the middle stair part 4 and of the lower stair part 5 is coupled to one another (cf. FIGS. 2 and 3).
  • the staircase is stowed out of the state of use (Fig. 3) by reversing the linear drive or the linear motor 17 is shortened.
  • Stair parts 4 and 5 are first folded up to the position shown in FIG. 2, only then the hatch cover 2 is closed up to the position shown in FIG. 1.
  • Fig. 4 shows a two-part foldable cheek stairs, which are normally used to reach Galleries or false ceilings is used in the stowed state, and Fig. 5 this in Condition of use.
  • the staircase consists of the stair parts 34 and 35 and the steps 39.
  • the pressure rod 38 with a push gel is shown symbolically so that one can How it works clearly and clearly.
  • the position of this thrust joint can be anywhere between the two ends of the rod.
  • One end of the upper stair part 34 is attached to the shaft 33.
  • a crank 40 is fastened to the guideway 41 (FIGS. 6 and 7).
  • the crank 40 will driven by a linear motor 42.
  • the shaft 33 is in the on the ceiling 30 attach fittings 31 arranged.
  • the lower stair part 35 is articulated with the other end of the upper stair part 34 connected.
  • the push rod 38 is between the lower stair part 35 and the ceiling 30 arranged by means of fittings 31 and 36.
  • the push rod is 38 when stowed somewhat stripped.
  • the rod 38 becomes up to it minimal length moved together and then acts as a two-joint link.
  • the above called four-bar gearbox for coupling two articulated together Stair parts are created and the stair parts can thus be in their state of use to be brought.
  • FIG. 6 shows the details of the connection between the linear motor 41 and the crank 40 shown with the web guide 41 in the stowed state of the stairs, and in Fig. 7 this in use.
  • the linear motor 42 is fixed by a normal joint Frame 43 articulated.
  • the other end of the motor drives the guideway 41 the crank 40 by means of a hinge pin 44.
  • The is in the stowed condition Pin 44 normally at the end of the guideway 41 (Fig. 6).
  • the pin 44 normally not at the end of the guideway 41 (FIG. 7), so that an adjustment of the ceiling height is possible by changing the inclination of the stairs.
  • the motor 42 can always by the built-in limit switch can be switched off (simple operation).
  • the staircase is stowed out of the state of use (Fig. 5) by reversing of the linear drive or the linear motor 42 is shortened.
  • the pin 44 moves first to the end of the guideway 41 and then pulls the crank 40. Stair parts 34 and 35 are thereby brought into the stowed state (FIG. 4).

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Steps, Ramps, And Handrails (AREA)
  • Ladders (AREA)
  • Handcart (AREA)
  • Transmission Devices (AREA)
  • Control Of Direct Current Motors (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Multiple Motors (AREA)
EP00104744A 1999-03-11 2000-03-04 Escalier à moteur Expired - Lifetime EP1035268B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE1999110806 DE19910806A1 (de) 1999-03-11 1999-03-11 Treppe
DE19910806 1999-03-11
DE19952597 1999-11-02
DE19952597A DE19952597A1 (de) 1999-03-11 1999-11-02 Treppe

Publications (3)

Publication Number Publication Date
EP1035268A2 true EP1035268A2 (fr) 2000-09-13
EP1035268A3 EP1035268A3 (fr) 2001-09-05
EP1035268B1 EP1035268B1 (fr) 2006-07-26

Family

ID=26052311

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00104744A Expired - Lifetime EP1035268B1 (fr) 1999-03-11 2000-03-04 Escalier à moteur

Country Status (4)

Country Link
EP (1) EP1035268B1 (fr)
CN (1) CN1118605C (fr)
AT (1) ATE334275T1 (fr)
DE (2) DE19952597A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1387018A2 (fr) 2002-08-02 2004-02-04 Ming Dr. Gao Entraínement pivotant
WO2006122970A1 (fr) * 2005-05-18 2006-11-23 Michael Burke Ensemble escalier de grenier escamotable
CN102753770A (zh) * 2010-01-18 2012-10-24 "弗克莱"屋顶天窗有限公司 嵌入在纵深框架中的可折叠阶梯
AT512482A1 (de) * 2012-01-19 2013-08-15 Minka Holz Und Metallverarbeitungs Gmbh Deckenverschlussorgan mit leiter oder treppe
EP2871300A1 (fr) 2013-11-06 2015-05-13 Loftease Attic Stairs Limited Échelle pliante automatique
CN115492322A (zh) * 2020-12-01 2022-12-20 常熟汉华机械有限公司 一种背景墙式隐藏爬梯
EP4249716B1 (fr) * 2022-03-24 2024-10-16 FAKRO PP Sp. z o.o. Connecteur pour composants articulés et fixes d'un élément structurel, et en particulier pour escalier de grenier

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7165649B2 (en) * 2003-08-07 2007-01-23 Werner Co. Positioning system for folding ladder and method of installation of folding ladder using positioning system
US6991063B2 (en) * 2003-08-07 2006-01-31 Werner Co. Stowable ladder configured for installation in an opening
CN101831997B (zh) * 2010-05-20 2012-12-26 清华大学 快速可展楼梯
PL220639B1 (pl) * 2011-10-06 2015-11-30 Fakro Pp Spółka Z Ograniczoną Odpowiedzialnością Schody składane, zwłaszcza czterosegmentowe
CN102628310B (zh) * 2012-04-10 2014-08-13 温州市康而达实业有限公司 设有折叠护栏的自动隐藏式滑动楼梯
CN103350937B (zh) * 2013-07-24 2015-11-11 巨人通力电梯有限公司 一种用于进出电梯底坑的自动爬梯装置
CN106677450A (zh) * 2017-03-11 2017-05-17 陈彦名 一种节约空间型智能活动楼梯

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1509491A1 (de) 1965-09-22 1969-06-26 Henke Kg Wilhelm Bodentreppe
DE1905220A1 (de) 1969-02-03 1970-08-13 Albert Wagner Einschiebbare Bodentreppe mit Gliederscheren
DE2458788A1 (de) 1974-12-12 1976-09-02 Wagner Johann Einschiebbare bodentreppe
DE9214710U1 (de) 1992-10-30 1993-03-25 Henke GmbH & Co Treppenwerke, 4990 Lübbecke Einschiebbare Bodentreppe
DE4325366A1 (de) 1992-07-28 1994-02-03 Sanwa Shutter Corp Motorisch angetriebene Innenraumleiter

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05256078A (ja) * 1992-03-12 1993-10-05 Nissan Shatai Co Ltd 天井収納梯子装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1509491A1 (de) 1965-09-22 1969-06-26 Henke Kg Wilhelm Bodentreppe
DE1905220A1 (de) 1969-02-03 1970-08-13 Albert Wagner Einschiebbare Bodentreppe mit Gliederscheren
DE2458788A1 (de) 1974-12-12 1976-09-02 Wagner Johann Einschiebbare bodentreppe
DE4325366A1 (de) 1992-07-28 1994-02-03 Sanwa Shutter Corp Motorisch angetriebene Innenraumleiter
DE9214710U1 (de) 1992-10-30 1993-03-25 Henke GmbH & Co Treppenwerke, 4990 Lübbecke Einschiebbare Bodentreppe

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1387018A2 (fr) 2002-08-02 2004-02-04 Ming Dr. Gao Entraínement pivotant
DE10235647A1 (de) * 2002-08-02 2004-02-19 Gao, Ming, Dr.-Ing. Schwenkantrieb
EP1387018A3 (fr) * 2002-08-02 2005-02-02 Ming Dr. Gao Entraínement pivotant
WO2006122970A1 (fr) * 2005-05-18 2006-11-23 Michael Burke Ensemble escalier de grenier escamotable
CN102753770A (zh) * 2010-01-18 2012-10-24 "弗克莱"屋顶天窗有限公司 嵌入在纵深框架中的可折叠阶梯
AT512482A1 (de) * 2012-01-19 2013-08-15 Minka Holz Und Metallverarbeitungs Gmbh Deckenverschlussorgan mit leiter oder treppe
AT512482B1 (de) * 2012-01-19 2014-09-15 Minka Holz Und Metallverarbeitungs Gmbh Deckenverschlussorgan mit leiter oder treppe
EP2871300A1 (fr) 2013-11-06 2015-05-13 Loftease Attic Stairs Limited Échelle pliante automatique
CN115492322A (zh) * 2020-12-01 2022-12-20 常熟汉华机械有限公司 一种背景墙式隐藏爬梯
EP4249716B1 (fr) * 2022-03-24 2024-10-16 FAKRO PP Sp. z o.o. Connecteur pour composants articulés et fixes d'un élément structurel, et en particulier pour escalier de grenier

Also Published As

Publication number Publication date
CN1266936A (zh) 2000-09-20
CN1118605C (zh) 2003-08-20
EP1035268A3 (fr) 2001-09-05
DE19952597A1 (de) 2001-05-03
EP1035268B1 (fr) 2006-07-26
ATE334275T1 (de) 2006-08-15
DE50013208D1 (de) 2006-09-07

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