CN102753770A - Foldable stairs embedded in deep frame - Google Patents
Foldable stairs embedded in deep frame Download PDFInfo
- Publication number
- CN102753770A CN102753770A CN201180006189XA CN201180006189A CN102753770A CN 102753770 A CN102753770 A CN 102753770A CN 201180006189X A CN201180006189X A CN 201180006189XA CN 201180006189 A CN201180006189 A CN 201180006189A CN 102753770 A CN102753770 A CN 102753770A
- Authority
- CN
- China
- Prior art keywords
- ladder
- framework
- collapsible
- removable step
- section
- 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.)
- Pending
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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
Abstract
The invention relates to foldable stairs comprising stairs segments movable with relation to each other, where the uppermost stairs segment (3) is attached to the cover (2) connected by means of a hinge mechanism with the frame (1 ) mounted in a ceiling. The stairs are provided with a movable step (4) pivotally connected to the internal surface of the wall of the frame (1 ) and supported by at least one supporting element connected with the cover (2). In one embodiment the movable step (4) is supported by hinged connectors (5) that in the opened state of the stairs are preferably substantially aligned with the stringers of the uppermost stairs segment (3). In the closed state of the stairs positioned in the frame, the tread (41 ) of the movable step (4) is preferably positioned substantially vertically inside the frame (1 ) in a close proximity of the frame wall.
Description
The present invention relates to collapsible ladder (stair); Relate to the ladder shape ladder that embeds in the framework that is installed in the basic horizontal in the ceiling particularly; And relate more specifically to be embedded in and be fit to thick ceiling---for example, heat insulation ceiling---the depth framework in ladder shape ladder.Such ladder mainly is used as the loft inlet.
Background technology
Use the framework of the carrying stair of depth if desired; For example be installed in the thick heat insulation ceiling; Then ladder top bar most and the top of framework between height be known, prior art solutions has prolonged the rank of ladder widely apart from (step pitch).
Summary of the invention
The invention provides collapsible ladder; Especially be embedded in the collapsible ladder in the framework; It more specifically is the collapsible ladder that is embedded in the depth framework of wall height with increase; Comprise each other movably ladder section, wherein go up most the ladder section and be rotatably connected that this framework is provided with the removable step of inner surface of the wall of pivotal connection to framework with said framework.The said ladder section that goes up most preferably is attached to following lid, and this covers and when the ladder closure state, is bonded to said framework, and is connected with said framework through linkage, and at least one support component that removable step is connected to lid supports.Removable step is positioned as follows, make removable step pedal and go up the rank distance that distance between the pedal of topping bar most of ladder section corresponds essentially to ladder most.
In the ladder closure state, remaining ladder section is positioned in the framework, be positioned to go up ladder section top most, and in ladder expansion, open mode, remaining ladder section is positioned in aligned relationship and goes up ladder section below most, forms the ladder of inclination circuit.Ladder also is provided with a mechanism, spring mechanism preferably, the folding ladder of this mechanism supports is promoted to the ladder closure state, and during opening ladder the weight of the said ladder of partial equilibrium at least.Preferably, said ladder also is provided with the pulling rod structure of opening limit of the said ladder of restriction.
In one embodiment of the invention; The support component of said removable step is to go up the ladder section most; And the connector that removable step preferably is hinged supports, and this hinged connector is with the said ladder section that goes up most, and---being preferably the longeron (stringer) of this section---connects with said removable step.In the open mode (launching for using) of ladder, hinged connector is preferably aimed at the said longeron of going up the ladder section most basically.The geometrical axis of the longeron of the epimere of ladder passes the top surface of said pedal near the width center of the pedal of removable step; Go up most on the ladder section so that the pressure on this step mainly is delivered in, and only transmit the pressure of limited extent through the joint (joint) that is installed in this step on the framework in the ceiling.
In another embodiment of the invention; The said support component of removable step is to go up the ladder section most, and removable step is provided with supporting leg, in the open mode of ladder; The longeron of the epimere of supporting leg and ladder is aimed at basically, and in abutting connection with the front top surface of said longeron.In ladder is unfolded for the open mode of using; The geometrical axis of the longeron of the epimere of ladder passes the top surface of this pedal in the vicinity, width center of the pedal of removable step, this has the advantageous effects of the transmission pressure identical with top embodiment.In closure (folding) state of ladder, the pedal of removable step is bonded to frame wall internally, and supporting leg does not contact with the epimere of ladder.
In yet another embodiment of the present invention, the said support component of removable step is at least one support that is attached to lid, and said lid is connected with said framework through linkage.The connector that removable step is hinged supports, and this hinged connector connects said removable step with this support or a plurality of support.Preferably, in the open mode of ladder, this hinged connector is aimed at the longeron of going up most the ladder section basically.Distance between the inner surface of the width of the pedal of removable step and pedal and framework is chosen in such a way; The geometrical axis of the longeron of the epimere of the ladder that make to launch passes the top surface of this pedal near the width center of this pedal, this has the advantageous effects of the transmission pressure identical with top embodiment.
The collapsible ladder that has an extra removable step according to the present invention is more more convenient than existing ladder, and this is that therefore removable step of the present invention is convenient to climb up the surface of framework top.
Description of drawings
With reference to the preferred embodiments of the invention and with reference to accompanying drawing hereinafter illustration the present invention, it is restrictive that preferred embodiment should not be considered to, in the accompanying drawings:
Fig. 1 shows according to the axle of first embodiment of the collapsible ladder with step movably and hinged connector of the present invention and surveys sketch map, and this ladder is in open mode but the ladder section is folded in and covers;
Fig. 2 shows the lateral view of ladder under open mode of Fig. 1, but wherein the ladder section is in and opens or closed intermediate state;
The lateral view of the ladder that Fig. 3 shows Fig. 1 under closure state almost, wherein the ladder section is folded in and covers;
Fig. 4 shows the lateral view of ladder under closure state of Fig. 1, and wherein the ladder section is folded in and covers;
Fig. 5 shows the lateral view according to another embodiment of collapsible ladder of the present invention; This ladder has the movably step that has supporting leg; This supporting leg is fixed to movably step pedal, is folded in and covers but this ladder is in open mode ladder section;
Fig. 6 shows the lateral view of ladder under closure state of Fig. 5, and wherein the ladder section is folded in and covers.
The specific embodiment
Another embodiment according to collapsible ladder of the present invention is not described in the accompanying drawings, but has at large described this another embodiment with reference to the common trait and the different characteristic of embodiment illustrated in the accompanying drawings.
Collapsible ladder shown in Fig. 1 comprises that level is embedded in the framework 1 in the ceiling of building, wherein because thick ceiling or suppose that wall extends across the needs of the top surface of ceiling, the relative depth of the wall of framework.Framework 1 can be from the bottom by following lid 2 closures, and said lid 2 is connected to framework through the pulling rod structure of opening limit of a linkwork and a said lid 2 of restriction.The structure that connects said framework 1 and lid 2 also comprises following spring, and the ladder section of this spring supported folding upwards is promoted to closure state with lid, and during opening said lid the weight of the said lid 2 of balance and ladder.In this embodiment, ladder comprises three sections, wherein goes up most ladder section 3 and is fixed to and covers 2.Method of attachment and theme of the present invention between the quantity of section and section and the lid are incoherent.
Be provided with a removable step 4 in framework 1 inside.The inner surface of this removable step 4 pivotal connections to wall of framework 1; And be supported on through following two hinged connectors 5 and go up most on the ladder section 3; Connector 5 will this section longeron (curb girder) be connected with the rest of removable step 4, said rest is positioned at pedal 41 belows of removable step 4.In the open mode of ladder, hinged connector 5 is aimed at (referring to Fig. 1 and Fig. 2) basically with the longeron of going up most ladder section 3, and the pedal 41 of wherein removable step 4 is orientated with the same basic horizontal of pedal of the residue step of the ladder section of launching.
Distance between the inner surface of the width of pedal 41 and pedal 41 and framework 1 is chosen as follows, makes the geometrical axis of longeron of epimere 3 of ladder near the width center of pedal 41, pass the top surface of pedal 41.The pedal 41 of removable step and the distance that goes up most between the pedal of topping bar most 31 of ladder section 3 are selected as the rank distance corresponding to ladder.
When folding ladder is raised when placing them in framework 1 in, hinged connector 5 upwards promotes said removable step 4 (referring to Fig. 3), and is closed and the ladder section is positioned in the closure state in the framework 1 covering 2, and connector is vertically oriented basically.Stair tread 41 near the frame wall also is being in framework 1, be vertically oriented basically (referring to Fig. 4) subsequently.
Collapsible ladder is furnished with a flexible handrail (not shown in figures) extraly, and this handrail carries out articulated type with two sections of ladder and is connected (jointedly connect).Be positioned at the inner spring of handrail and support and promote and folding all ladder sections of removing the epimere, and when the expansion ladder weight of these sections of balance.
Similar with embodiment 1; The collapsible ladder that appears among Fig. 5 comprises the band wall framework 1 of depth; This framework 1 level is embedded in the ceiling of building; And can be from the bottom by following lid 2 closures, said lid 2 is connected to framework through the pulling rod structure of opening limit of a linkwork and a said lid 2 of restriction.Goes up most ladder section 3 and be fixed to and cover 2, and in this embodiment, ladder also comprises three sections, but significantly, the quantity of section and between them interconnect with theme of the present invention be incoherent.
Movably step 6 in framework 1, and is gone up 3 supports of ladder section through two supporting legs 61 in the inner surface pivotal connection of the wall of framework 1, and supporting leg 61 is fixedly attached to removable step 6.When ladder was in open mode, supporting leg 61 was aimed at (referring to Fig. 5) basically with the longeron of epimere 3, the same basic horizontal orientation of pedal of the pedal 62 of wherein removable step 6 and the residue step of the ladder section of launching.
Distance between the inner surface of the width of pedal 62 and pedal 62 and framework 1 is chosen as follows, makes the geometrical axis of longeron of epimere 3 of ladder near the width center of pedal 62, pass the top surface of pedal 62.The pedal 62 of removable step and go up distance between the pedal of topping bar most of ladder section 3 most and be chosen to be rank corresponding to ladder apart from (that is the lifting height of ladder).Extraly, supporting leg 61 can be provided with the mechanism that is used to regulate their length, for example through regulating from the driven screw in side of the longeron of epimere 3.As embodiment 1, collapsible ladder is provided with flexible handrail (not shown in figures) extraly.
, should removable step 6 be turned to like next position with before it being hidden in the framework 1 at folding said ladder, the pedal 62 of step 6 is near frame wall in framework 1, be vertically oriented basically (referring to Fig. 6) in said position.In this position, the supporting leg 61 of removable step 6 is positioned at the top, space that provides for the ladder section that is in the ladder closure state.
Similar with embodiment 1; Collapsible ladder comprises the band wall framework of depth; This framework level is embedded in the ceiling of building, and can be closed by following lid from the bottom, and said lid is connected to framework through the pulling rod structure of opening limit of a linkwork and a said lid of restriction.Go up most the ladder section and be fixed to lid.
In addition, support is fixed to lid along the longeron of going up most the ladder section (curb girder).
In framework, be provided with a removable step.The inner surface of this removable step pivotal connection to wall of framework; And be supported on the support through following two hinged connectors; Said hinged connector is connected support with the rest of step movably, said rest is positioned at the movably pedal below of step 4.
Distance between the inner surface of the width of the pedal of removable step and this pedal and framework is chosen as follows, and the geometrical axis of the longeron of the epimere of the ladder that make to launch passes the top surface of pedal near the width center of pedal.Removable step is identical the function of its all positions and embodiment 1.Similar with embodiment 1, collapsible ladder is provided with flexible handrail extraly.
Claims (8)
1. collapsible ladder; Especially being embedded in the collapsible ladder in the framework, more specifically is the collapsible ladder that is embedded in the depth framework of the wall height with increase, comprises each other movably ladder section; Wherein going up most the ladder section is rotatably connected with said framework; And the preferably said ladder section that goes up most is attached to following lid, and this covers and when the ladder closure state, is bonded to said framework and is connected with said framework through linkage, and remaining ladder section is positioned in the said framework when the ladder closure state; Said ladder is provided preferably with a mechanism; This mechanism is spring mechanism preferably, the folding ladder of this mechanism supports be promoted to the ladder closure state and during said ladder is opened the weight of the said ladder of balance at least in part, preferably said ladder is provided with the pulling rod structure of opening limit of the said ladder of restriction; It is characterized in that; A location removable step (4,6) in said framework, the inner surface of this removable step pivotal connection to the wall of framework (1), and by supporting with at least one support component of being connected of lid (2).
2. collapsible ladder according to claim 1 is characterized in that, the said support component of said removable step (4,6) is to go up ladder section (3) most.
3. collapsible ladder according to claim 2; It is characterized in that; The connector (5) that removable step (4) is hinged supports; This hinged connector (5) with said go up most ladder section (3) and preferably the longeron of this section (3) connect with said removable step (4), wherein in the open mode of ladder, said hinged connector (5) is preferably aimed at the said longeron of going up ladder section (3) most basically.
4. collapsible ladder according to claim 2; It is characterized in that; Removable step (6) is provided with supporting leg (61); This supporting leg is fixed to the pedal (62) of this step (6), and wherein in the open mode of ladder, the longeron of the epimere (3) of said supporting leg (61) and ladder is aimed at and in abutting connection with the front top surface of said longeron basically.
5. according to claim 3 or 4 described collapsible ladders; It is characterized in that, launch near the width center of the stair tread (41,62) of removable step (4,6), to pass the top surface of said stair tread (41,62) for the geometrical axis of the longeron of the epimere (3) of the ladder that uses.
6. collapsible ladder according to claim 1 is characterized in that, the said support component of said removable step is at least one support that is attached to said lid.
7. collapsible ladder according to claim 6; It is characterized in that; The connector that removable step is hinged supports; Said at least one support that this hinged connector will be attached to lid connects with removable step, and wherein in the open mode of ladder, hinged connector preferred orientation is the longeron that is parallel to the epimere of ladder.
8. according to each described collapsible ladder of claim 1-7, it is characterized in that the distance between the stair tread of top bar most (31) of the epimere (3) of the stair tread of removable step (4,6) and ladder corresponds essentially to the rank distance of ladder.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL390220A PL218283B1 (en) | 2010-01-18 | 2010-01-18 | Folding stairway, preferably set in a high frame |
| PLP.390220 | 2010-01-18 | ||
| PCT/PL2011/000005 WO2011087386A1 (en) | 2010-01-18 | 2011-01-12 | Foldable stairs embedded in deep frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102753770A true CN102753770A (en) | 2012-10-24 |
Family
ID=43828327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180006189XA Pending CN102753770A (en) | 2010-01-18 | 2011-01-12 | Foldable stairs embedded in deep frame |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2526239B1 (en) |
| CN (1) | CN102753770A (en) |
| PL (1) | PL218283B1 (en) |
| WO (1) | WO2011087386A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112598A (en) * | 2013-03-01 | 2013-05-22 | 玉环县天润航空机械制造厂 | Foldable airstairs |
| CN104746816A (en) * | 2013-12-31 | 2015-07-01 | 德胜（苏州）洋楼有限公司 | Concealed storage staircase for wooden house |
| CN105863496A (en) * | 2016-04-12 | 2016-08-17 | 国家电网公司 | Outdoor working ladder |
| CN115492322A (en) * | 2020-12-01 | 2022-12-20 | 常熟汉华机械有限公司 | Wall type hidden crawling ladder |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9422769B2 (en) | 2013-11-08 | 2016-08-23 | Embraer S.A. | Force-balancing mechanisms especially useful for assisted lifting/lowering of aircraft stairs |
| AT512482B1 (en) * | 2012-01-19 | 2014-09-15 | Minka Holz Und Metallverarbeitungs Gmbh | CEILING ORGANIZER WITH LADDER OR STAIRCASE |
| PL229816B1 (en) * | 2012-03-09 | 2018-08-31 | Fakro Pp Spolka Z Ograniczona Odpowiedzialnoscia | Folding stairs, especially lightweight wooden stairs |
| AT513208A1 (en) * | 2012-11-22 | 2014-02-15 | Minka Holz Und Metallverarbeitungs Gmbh | Cover opening-closing member |
| US10538966B2 (en) * | 2017-05-10 | 2020-01-21 | Werner Co. | Ceiling ladder, deep step and method |
| CN112982852B (en) * | 2021-02-26 | 2022-11-15 | 全学友 | Steel-concrete combined assembled stair section |
| CN113027054A (en) * | 2021-03-22 | 2021-06-25 | 浙江宏超建设集团有限公司 | Assembled stair structure and construction method thereof |
| CN113833218B (en) * | 2021-10-20 | 2022-12-13 | 北京城建七建设工程有限公司 | Can have enough to meet need foldable energy-conserving stair |
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| CH219071A (en) * | 1941-02-03 | 1942-01-31 | Rindlisbacher Glauser Ferd | Attached to a building floor provided with an access opening and having a hinged cover for the floor opening, pull-up access device. |
| CH259760A (en) * | 1947-06-06 | 1949-02-15 | Kueng Alfred | Set of fittings in ceiling openings for folding stairs. |
| US2631771A (en) * | 1951-08-30 | 1953-03-17 | Ernest P Garner | Disappearing stairway |
| EP1035268A2 (en) * | 1999-03-11 | 2000-09-13 | Ming Dr. Gao | Motor-driven staircase |
| US20050028320A1 (en) * | 2003-08-07 | 2005-02-10 | Latimer Brett A. | Locking hinge for folding ladder |
| CN2755260Y (en) * | 2004-11-09 | 2006-02-01 | 何坚毅 | Pedal mechanism of foldable top stairs |
| CN1854427A (en) * | 2005-04-26 | 2006-11-01 | 德胜（苏州）洋楼有限公司 | Foldable indoor staircase |
| JP2007532809A (en) * | 2004-04-16 | 2007-11-15 | テレステップス アクティエボラーグ | Attic ladder assembly |
| CA2534531C (en) * | 2003-08-07 | 2009-01-06 | Werner Co. | Stowable ladder configured for installation in an opening |
| CN201236435Y (en) * | 2008-06-17 | 2009-05-13 | 叶昌玉 | Expandable stairway |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IES70924B2 (en) | 1996-10-31 | 1997-01-15 | Michael Burke | A manufacturing process |
| PL199927B1 (en) | 2000-10-20 | 2008-11-28 | Florek Krystyna | Hinge with changeable axis of rotation and relief spring catch, in particular that for folding garret stairs and method of making a component with such relief spring catch |
-
2010
- 2010-01-18 PL PL390220A patent/PL218283B1/en unknown
-
2011
- 2011-01-12 EP EP11706958.3A patent/EP2526239B1/en active Active
- 2011-01-12 CN CN201180006189XA patent/CN102753770A/en active Pending
- 2011-01-12 WO PCT/PL2011/000005 patent/WO2011087386A1/en active Application Filing
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH219071A (en) * | 1941-02-03 | 1942-01-31 | Rindlisbacher Glauser Ferd | Attached to a building floor provided with an access opening and having a hinged cover for the floor opening, pull-up access device. |
| CH259760A (en) * | 1947-06-06 | 1949-02-15 | Kueng Alfred | Set of fittings in ceiling openings for folding stairs. |
| US2631771A (en) * | 1951-08-30 | 1953-03-17 | Ernest P Garner | Disappearing stairway |
| EP1035268A2 (en) * | 1999-03-11 | 2000-09-13 | Ming Dr. Gao | Motor-driven staircase |
| US20050028320A1 (en) * | 2003-08-07 | 2005-02-10 | Latimer Brett A. | Locking hinge for folding ladder |
| CA2534531C (en) * | 2003-08-07 | 2009-01-06 | Werner Co. | Stowable ladder configured for installation in an opening |
| JP2007532809A (en) * | 2004-04-16 | 2007-11-15 | テレステップス アクティエボラーグ | Attic ladder assembly |
| CN2755260Y (en) * | 2004-11-09 | 2006-02-01 | 何坚毅 | Pedal mechanism of foldable top stairs |
| CN1854427A (en) * | 2005-04-26 | 2006-11-01 | 德胜（苏州）洋楼有限公司 | Foldable indoor staircase |
| CN201236435Y (en) * | 2008-06-17 | 2009-05-13 | 叶昌玉 | Expandable stairway |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112598A (en) * | 2013-03-01 | 2013-05-22 | 玉环县天润航空机械制造厂 | Foldable airstairs |
| CN103112598B (en) * | 2013-03-01 | 2015-11-18 | 玉环天润航空机械制造有限公司 | Folding airstair |
| CN104746816A (en) * | 2013-12-31 | 2015-07-01 | 德胜（苏州）洋楼有限公司 | Concealed storage staircase for wooden house |
| CN105863496A (en) * | 2016-04-12 | 2016-08-17 | 国家电网公司 | Outdoor working ladder |
| CN115492322A (en) * | 2020-12-01 | 2022-12-20 | 常熟汉华机械有限公司 | Wall type hidden crawling ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| PL390220A1 (en) | 2011-08-01 |
| EP2526239A1 (en) | 2012-11-28 |
| WO2011087386A8 (en) | 2011-09-29 |
| EP2526239B1 (en) | 2019-09-11 |
| WO2011087386A1 (en) | 2011-07-21 |
| PL218283B1 (en) | 2014-10-31 |
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