CN100447371C - Loft ladder assembly - Google Patents
Loft ladder assembly Download PDFInfo
- Publication number
- CN100447371C CN100447371C CNB2005800172755A CN200580017275A CN100447371C CN 100447371 C CN100447371 C CN 100447371C CN B2005800172755 A CNB2005800172755 A CN B2005800172755A CN 200580017275 A CN200580017275 A CN 200580017275A CN 100447371 C CN100447371 C CN 100447371C
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- CN
- China
- Prior art keywords
- stair
- ladder assembly
- support
- loft ladder
- loft
- 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.)
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
- E06C1/125—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic with tubular longitudinal members nested within each other
-
- 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
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
- Joints Allowing Movement (AREA)
- Residential Or Office Buildings (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
A loft ladder assembly 10 is described which comprises a telescopically collapsible ladder 12 in combination with a frame 14 for mounting the ladder 12 within a hatch opening. The frame 14 comprises a mounting bracket 14a to be secured in use to the hatch opening, to which bracket 14a the uppermost section of the ladder 12 is pivotably connected, and a carriage 14b pivotably connected to the mounting bracket 14a for supporting the weight of the ladder 12 in its stowage position and preventing the ladder 12 from extending unintentionally.
Description
Technical field
The present invention relates to a kind of loft ladder assembly
Background technology
Hatch door (Hatch door) generally is located in the ceiling so that enter the loft or the roof space of building.Loft ladder also is widely known by the people, and it is stored at the roof space and can be unfolded by downward pulling after opening hatch door.
Common loft ladder is generally extending type.This means that stair are made up of the staircase that two (being three sometimes) are arranged on Different Plane, these two parts slide relative to one another and can be locked to each other when cover superimposition extended position.Even after two parts intussusception, they are also long than hatch door.Therefore, in order to collect stair, at first have to it is lifted into loft usually, pivoting subsequently makes its lower end pass hatch.The stair of intussusception generally pivot around axle, contiguous its center of this axle, thus stair are just near balance.When the result opened when hatch door, stair kept its horizontal level in loft, and in order to launch this stair, the user is the lower end of pivot revolving hatch at first, and the window catch that manual releasing is different is so that its extension and arrive the floor subsequently.
Because this stair are very not compact, even at its cover overlapping state, they also have the shortcoming of the roof space of occupying.Preferably form a kind of telescopic folding stair thus, wherein door very is made of the part that can be folded each other, for example described in the EP-B1-0 527 766.This stair are compacter than ductile stair after it is folding, and can make enough little so that the whole hatch of packing into.
But if the top step of telescopic folding stair is installed on the side of hatch pivotally, then it can fall when opening hatch door, and self extends under its deadweight effect.Can injure the user who is taken by surprise like this.
Summary of the invention
Therefore the invention provides a kind of loft ladder assembly, this assembly adapts in the hatch and can not take attic space, and can launch easy and safely and collect.
The loft ladder assembly that is used for entering by hatch loft according to the present invention comprises: have the telescopic folding stair of locking device, locking device can be released on a step, with folding stair; With being used for stair are installed in framework in the hatch, framework comprises the erection support that in use is fixed on hatch, with the stair rotor be connected on the framework linkage and when stair are positioned at the folding position with the holding device of stair with respect to frame fixation.And stair are provided with corresponding holding device, and the holding device on itself and the framework interacts, and this framework is mounted to when stair are in favorite places when hatch door is closed, and stair be can't help the hatch door support.
Preferably, the topmost of these stair part pivotally is connected on this erection support, and support pivotally is connected on the erection support, with the deadweight at favorite places upper support stair, and prevents that stair from unexpectedly extending.
For prevent that stair from extending under its deadweight effect, support is provided with and is used to discharge the device that engages the stair lowermost part, and this device comprises a pair of hook, is used to admit from the laterally projecting bead of stair lowermost part.
Support preferably is connected on the erection support by at least one spring, and spring impels support to resist the weight effect of stair and enters favorite places.Each spring should be connected on erection support and the support easily, by this way as eccentric toggle spring, thereby impels support away from stair when launching stair.
Telescopic folding stair preferably described in EP-B1-0 527 766 mode constitute, specifically be, these stair can be provided with stop pin in step, this stop pin carries out the spring bias voltage outwards laterally to move forward in the hole in crossing the threshold very, thereby when stair are positioned at extended position door being endured each several part locks together, when step drives stop pin near the step under it, the stop pin withdrawal of the next higher part of stair.When forming stair in this way, from its lowermost part of support release the time, stair will be opened downwards naturally from the top, and when it is lifted into favorite places, stair will be upwards progressively folding from lowermost part.
Description of drawings
Describe the present invention in detail with embodiment below with reference to accompanying drawings, wherein:
Fig. 1 is the phantom drawing of first embodiment of loft ladder assembly of the present invention when its favorite places;
Fig. 2 is the lateral view of loft ladder assembly among Fig. 1;
Fig. 3 is the lateral view that loft ladder assembly and support enter vertical position downwards;
Fig. 4 is the view that is similar to the stair that are arranged in expanded position of Fig. 3;
Fig. 5 is the phantom drawing of loft ladder assembly of the present invention at second embodiment of part in upper/lower positions;
Fig. 6 is that the stair that are similar to Fig. 5 are positioned at the view on the expanded position;
Fig. 7 is the lateral view of loft ladder assembly among Fig. 6;
Fig. 8 is the phantom drawing that loft ladder assembly of the present invention is arranged in the 3rd embodiment of favorite places;
Fig. 9 is the lateral view of loft ladder assembly among Fig. 8;
Figure 10 is that loft ladder assembly is positioned at the downward locational phantom drawing of part among Fig. 8;
Figure 11 is the lateral view that loft ladder assembly and support enter vertical position downwards among Fig. 8;
Figure 12 is the view that the stair that are similar to Figure 11 are positioned at expanded position;
Figure 13 is the phantom drawing that loft ladder assembly of the present invention is arranged in the 4th embodiment of favorite places;
Figure 14 is the lateral view that the loft ladder assembly of Figure 13 is arranged in expanded position.
The specific embodiment
Fig. 1 shows first embodiment of loft ladder assembly 10, and this assembly comprises telescopic folding stair 12 and is used for these stair are installed in the framework 14 of hatch.Framework 14 is by erection support 14a and can be with respect to erection support 14a at horizontal level shown in Figure 1 and Fig. 3, shown in 4 between the vertical position support 14b of pivotable form.Two helical spring 16a and 16b spring into two end position as the toggle spring with support 14b bias voltage, will narrate below.
Fig. 1-14 specifically illustrates the hatch with three walls 40 that form hatch.Framework 14 is installed on one of them wall 40 in an illustrated embodiment, but also can be installed on the hatch door.
The structure of stair 12 is identical with the stair of general scaler, and commercial is that trade mark is at present
The stair of board.The stair of the preferred this structure of the present invention simultaneously, but the present invention is main and do not lie in this, thereby be not described in detail in the context of the present invention.Being described in further detail of the internal construction of stair 12 can be referring to document EP-B1-0 527 766.
Preferably
The stair of board are to fold owing to it can make progress from the bottom, rather than folding downwards from the top.Especially these stair have stop pin in its step, stop pin by the spring bias voltage laterally outwards moving forward in the hole in crossing the threshold very, thereby when stair are positioned at extended position, so that the part of enduring with door locks together.When two steps together the time, the bottom step is pressed in (the most following second step among Figure 13) on two quarter butts 26, and described quarter butt dangles from the top step, so that the stop pin that forms in the step of top is very withdrawn from door.The next higher part of stair is folded up, and progressively repeated up to all parts all upwards folding from the bottom.
Each step of stair all has two horizontal outstanding flanges 24, and flange engages with hook 22 from support 14b projection.After stair were folding fully, the flange 24 of the most following second step 33 can be elevated to be hung on the hook 22, can prevent that like this stair from extending under its deadweight effect.
The topmost portion of stair can be with respect to erection support 14a around pin 28 pivoted, and this pin passes two manomelias 20 from erection support 14a projection.Similarly, support 14b can be around pin 18 pivoted, and this pin passes two cropped ears 30 from erection support 14a projection.
In use, by with screw or bolt with erection support 14a be fixed on around and limit on the ceiling joist of hatch fixedly stair module.When hatch door 60 (only shown in Figure 12-14) pivots by hinge or moves when opening, loft ladder assembly structure as shown in Figure 1 appears in the hatch.At this state, spring applies a moment to support 14b, and this moment is slightly larger than the moment of stair 12 and support 14b deadweight summation, so loft ladder assembly still remains in the hatch after hatch door is opened.
In order to launch stair, make support 14b resist the downward pivoted of effect of spring 16a and 16b by downward pulling tape 32 (shown in Fig. 3 and 4).Because the leverage of support 14b, this operation need not too much power.Support pivot eccentric position and arrive the position shown in Fig. 3 and 4, can see that from this figure the position of spring 16a and 16b moves on to an opposite side of pin 18, thereby support 14b can stably remain on vertical position this moment, and need not rely on the auxiliary of stair 12 deadweights.
When the collection stair, between its top two-stage step, maintain a spacing.Can make the user lift whole stair so also makes flange 24 break away from from linking up with 22 thus.In case the weight of stair 12 is no longer supported by hook 22, stair will extend downwards naturally from the top, as shown in Figure 4.Can make the user from support 14b pulling stair 12 and it is extended arrive ground and tilting on safety and comfortable angle like this up to stair.
In order to collect stair, can put upside down above-mentioned steps.At first after using quarter butt 26 (especially referring to Fig. 1 and 4), the stop pin of the most following second step 33 of release stair, the lowermost part (comprising step 33 and 35) of lifting stair.When step 33 reaches next higher step, with discharging the stop pin of next higher staircase automatically, with folding this staircase.Carrying out this step repeatedly folds up up to whole stair.
After all parts of stair 12 all were folded each other, the flange 24 of the most following second step 33 can be elevated to hook 22 places, and the weight of stair will be supported by support 14b fully thus.When keeping tape 32 (only shown in Fig. 3 and 4), support, is just tightened stair with tape 32, thereby can gradually it be turned back to favorite places shown in Figure 1 in case it is through eccentric position to its pivoted this moment.Thereupon with regard to alternative hatch door or close hatch door.
Second embodiment of loft ladder assembly 10 has been shown in Fig. 5-7, has wherein formed the configuration that stair 12 is remained on favorite places by the hook part 122 on the step 35 of below.The hook of (shown in Figure 5) is partly taken in the montant 50 of support 14b in favorite places, and this montant extends between the cross bar 51 and 52 of support 14b.Except the fixed configurations of loft ladder assembly, the loft ladder assembly of second embodiment and first embodiment is operation in the same way all.
The 3rd embodiment of loft ladder assembly has been shown in Fig. 8-12, and wherein these stair are used for hatch, and stair can not be contained in the hatch herein, but need be stored in the loft on the hatch.Loft ladder assembly shown in Fig. 8-12 and the loft ladder assembly shown in Fig. 5-7 have makes stair 12 remain on the identical configuration of favorite places, promptly is provided with hook 122 to admit the montants 50 of support 14b on lower step 35.
Loft ladder assembly shown in Fig. 8-12 also is provided with L shaped beam 70, is connected on the bearing 14a first end 70 rotors of this beam, and stair 12 pivotally are connected in the second end 71.Beam 70 can make the top of stair 12 extend beyond hatch, thereby even stair 12 are longer than hatch, also can be collected.Shown in Fig. 8 and 9.
In order to launch stair, make support 14b resist the effect of spring 16a and 16b and pivoted downwards by downward pulling tape.Because the leverage of support 14b, this operation need not too much power.Beam 70 and support 14b pivot and arrive position shown in Figure 11 through eccentric position (referring to Figure 10), the position that shows spring 16a and 16b from this position has moved on to the opposition side of pin 18, thereby this moment, support 14b can stably remain on its vertical position, and need not rely on the auxiliary of stair 12 deadweights.
The user lifts whole stair from this position, and further pivots from bar 50 disengaging hooks 122 and beam 70 thus.In case the deadweight of stair 12 is no longer supported by bar 50, it will extend downwards naturally from the top, be similar to shown in Figure 4.Can make the user spur stair 12 like this, and extend up to arriving ground always away from support 14b, and tilting with safety and comfortable angle.Beam 70 generally is pivoted to position shown in Figure 14.
In order to collect stair, can put upside down above-mentioned steps basically.At first the quarter butt on using stair 12 the most following second steps 33 promotes stair after discharging stop pin.When step 33 reached next higher step, the stop pin of next higher staircase discharged automatically, with folding this staircase.Carrying out this step repeatedly folds up up to whole stair.
After all parts of stair 12 all were folded each other, the hook 122 of lower step 35 was placed on the bar 50, so supported fully by support 14b in the deadweight of these stair.Keep tape, beam and support to its pivoted simultaneously, in case it just retrains stair with tape, thereby can gradually it be turned back to the favorite places shown in Fig. 8 and 9 through eccentric position.Then with regard to alternative hatch door 60 or close hatch door.
The 4th embodiment of loft ladder assembly 10 has been shown in Figure 13 and 14, and this stair module is used for hatch, and wherein stair can not be contained in the hatch, but need be stored in the loft on the hatch.The 3rd embodiment of the loft ladder assembly shown in the loft ladder assembly shown in Figure 13 and 14 and Fig. 8-12 is similar, but without support and spring.Keep stair 12 similar, but on the most following second step 33, be provided with hook 122, and can hold montant 90 at the configuration and the second and the 3rd embodiment of favorite places.Montant 90 is installed on the pillar 114a of framework 14.Beam 70 pivotally is installed on the bar 90.
In favorite places shown in Figure 13, the top of stair 12 is that stair 12 extensions guarantee to make stair to remain on favorite places above the weight of the part of hatch.Stair 12 will remain in the favorite places when opening hatch door 60.In order to launch stair, user's pulling is connected in the tape on the lower step, and beam 70 and stair 12 pivot and arrive horizontal levels through eccentric positions.
The user lifts whole stair from this position, breaks away from hook 122 from bar 50 thus, and beam 70 further pivots.In case the weight of stair 12 is no longer supported by bar 50, it will extend downwards naturally from the top, be similar to shown in Figure 4.Can make the user spur stair 12 like this and it is extended up to arriving ground, and tilting with safety and comfortable angle.Beam 70 generally is pivoted to position shown in Figure 14.
In order to collect stair, can put upside down above-mentioned steps basically.At first the quarter butt on using stair 12 the most following second steps 33 folds stair after discharging stop pin.When step 33 reached next higher step, the stop pin of next higher staircase discharged automatically, with folding this staircase.Carrying out this step repeatedly folds up up to whole stair.
After all parts of stair 12 all were folded each other, this moment, beam pivoted towards its horizontal level, in case its is through eccentric position, the hook 122 of lower step just is placed on the bar 50, so will be supported by framework 14 fully in the weight of these stair.Retrain stair with tape, thereby can gradually it be turned back to favorite places shown in Figure 13.Then with regard to alternative hatch door 60 or close hatch door.
The bottom of stair 12 also is connected on the hatch door 60 releasedly, thereby when opening hatch door, stair 12 are with pivoted.
Those skilled in the art can understand on the basis that does not break away from claim scope of the present invention, can make various distortion to described loft ladder assembly.For example support 14b can have hatch door or be connected on the hatch door, in addition, also can use window catch to substitute spring support is remained on its raised position.
Claims (14)
1. loft ladder assembly that is used for entering loft by hatch, wherein loft ladder assembly comprises the telescopic folding stair with locking device, locking device can be released on a step with folding stair, with being used for stair are installed in framework in the hatch, framework comprises the erection support that in use is fixed on hatch, the stair rotor is connected linkage on the framework, with when stair are positioned at the folding position with the holding device of stair with respect to frame fixation, and wherein stair are provided with corresponding holding device, holding device on itself and the framework interacts, this framework is mounted to when stair are in favorite places when hatch door is closed, and stair be can't help hatch door and supported.
2. loft ladder assembly according to claim 1, wherein the topmost portion of stair is pivotally connected on bearing, and its middle frame comprises a support, and this support is pivotally connected on erection support, be used for supporting stair weight, and prevent that stair from unexpectedly extending at the favorite places of stair.
3. loft ladder assembly according to claim 1, its central sill is pivotally connected on framework, and the topmost portion of stair is pivotally connected on beam.
4. loft ladder assembly according to claim 3, its medium-height trestle is pivotally connected on erection support, is used for supporting stair weight at the favorite places of stair, and prevents that stair from unexpectedly extending.
5. according to the described loft ladder assembly of above-mentioned each claim, wherein in order to prevent that stair from extending under its deadweight effect, support is provided with the device that is used for engaging releasedly the stair lowermost part.
6. loft ladder assembly according to claim 5, the device that wherein is used for engaging releasedly the stair lowermost part comprises a pair of hook, is used to receive the laterally projecting projection of the most following second step from stair.
7. according to each described loft ladder assembly among the claim 3-4, wherein in order to prevent that stair from extending under its deadweight effect, stair are provided with and are used for the device of engage frame releasedly.
8. loft ladder assembly according to claim 7, wherein the device of engage frame is included in hook part on the most following second step of stair releasedly, is used to be received in the montant that extends between the bearing of framework.
9. according to each described loft ladder assembly among the claim 1-4, wherein in order to prevent that stair from extending under its deadweight effect, stair are provided with and are used for the device of splice holder releasedly.
10. loft ladder assembly according to claim 9, wherein the device of splice holder is included in the hook part of the lower step of stair releasedly, is used to receive the montant of the horizon bar that connects support.
11. according to each described loft ladder assembly among the claim 3-4, wherein extend under its deadweight effect when preventing that stair are positioned at favorite places, beam can be provided with holding device, for example spring or hook.
12. according to each described loft ladder assembly among the claim 1-4, its medium-height trestle is connected on the erection support by at least one spring, spring impels support to resist the weight effect of stair and enters favorite places.
13. loft ladder assembly according to claim 12, wherein each spring all is connected on the erection support, and is connected on the support in the mode of over-center toggle spring action, thereby impels support away from stair when launching stair.
14. according to each described loft ladder assembly among the claim 1-4, wherein stair have the stop pin that is built in the step, when stair are positioned at its extended position, for the each several part with stair tread locks together, stop pin spring bias voltage is outwards laterally to move in the hole of Men Tingzhong formation, when step drove the stop pin vicinity and is positioned at step it under, the stop pin of the next higher part of stair was withdrawn.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0408475A GB2413148A (en) | 2004-04-16 | 2004-04-16 | Loft ladder assembly |
| GB0408475.2 | 2004-04-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1997800A CN1997800A (en) | 2007-07-11 |
| CN100447371C true CN100447371C (en) | 2008-12-31 |
Family
ID=32320920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005800172755A Active CN100447371C (en) | 2004-04-16 | 2005-04-15 | Loft ladder assembly |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US20070234654A1 (en) |
| EP (1) | EP2102429B1 (en) |
| JP (1) | JP2007532809A (en) |
| CN (1) | CN100447371C (en) |
| AT (1) | ATE519000T1 (en) |
| AU (1) | AU2005233496B2 (en) |
| CA (1) | CA2562409C (en) |
| DK (1) | DK2102429T3 (en) |
| ES (1) | ES2370645T3 (en) |
| GB (1) | GB2413148A (en) |
| NZ (1) | NZ550323A (en) |
| WO (1) | WO2005100716A1 (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9863187B2 (en) * | 2006-07-27 | 2018-01-09 | Werner Co. | Tubular access ladder and method |
| US7967110B2 (en) * | 2006-07-27 | 2011-06-28 | Werner Co. | Tubular access ladder and method |
| CA2672957C (en) | 2006-12-20 | 2015-04-14 | Boehringer Ingelheim International Gmbh | Sulfated benzimidazolone derivatives having mixed serotonine receptor affinity |
| PL218283B1 (en) * | 2010-01-18 | 2014-10-31 | Fakro Pp Spółka Z Ograniczoną Odpowiedzialnością | Folding stairway, preferably set in a high frame |
| US8555555B2 (en) * | 2010-03-27 | 2013-10-15 | Michael Cardwell | Automatic retractable hatch guard |
| US8695760B2 (en) * | 2011-01-28 | 2014-04-15 | Appropriate Combined Technologies, Llc | Telescoping pull-down attic ladder |
| CN102444247A (en) * | 2011-09-13 | 2012-05-09 | 宁波市鄞州千峰机械科技有限公司 | Gentle slope fluctuating stair special for classroom building |
| CN104746816A (en) * | 2013-12-31 | 2015-07-01 | 德胜（苏州）洋楼有限公司 | Concealed storage staircase for wooden house |
| US20150183308A1 (en) * | 2014-01-02 | 2015-07-02 | Gloria M. Buley | Roof hatch system |
| GB2532423A (en) * | 2014-11-18 | 2016-05-25 | Andrew Beard Michael | A cantilever mounted access device |
| GB2557286B (en) * | 2016-12-05 | 2018-12-19 | Vincent Cole Geoffrey | A Collapsible Ladder Apparatus |
| US11235852B2 (en) * | 2018-09-10 | 2022-02-01 | B/E Aerospace, Inc. | Bidirectional hatch for passenger rest compartment |
| CN109707124A (en) * | 2018-11-13 | 2019-05-03 | 陈奕霏 | A kind of building field balcony guardrail |
| US12054984B2 (en) * | 2020-06-15 | 2024-08-06 | Brian K. Gates | Escape door assembly for storm shelter |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3653463A (en) * | 1970-06-22 | 1972-04-04 | E T Hannan & Associates Inc | Collapsible ladder arrangement |
| WO1991015651A1 (en) * | 1990-04-10 | 1991-10-17 | Safescape Limited | Collapsible ladder |
| GB2263932A (en) * | 1992-02-01 | 1993-08-11 | Telesteps Limited | Loft ladder. |
| CN2571986Y (en) * | 2002-09-25 | 2003-09-10 | 王国华 | a telescopic ladder |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1823510A (en) * | 1929-03-27 | 1931-09-15 | Peters | Extension ladder hook |
| GB496612A (en) * | 1936-11-14 | 1938-12-02 | Ursula Gleinser | Improvements in collapsible loft stairs |
| US2907401A (en) * | 1956-10-23 | 1959-10-06 | Wagner Johann | Folding stairs |
| US3051261A (en) * | 1960-07-18 | 1962-08-28 | Wel Bilt Products Company | Adjustable stairs |
| US3169603A (en) * | 1963-02-21 | 1965-02-16 | Sr John J Amic | Access ladder |
| US3490557A (en) * | 1967-07-07 | 1970-01-20 | Ralph J Auciello | Adjustable ladder construction for fire escape platforms and the like |
| FR2300888A1 (en) * | 1975-02-14 | 1976-09-10 | Monnerie Gerard | NEW STAIRCASE FOLDING DEVICE |
| US4180142A (en) * | 1978-05-25 | 1979-12-25 | Rocco Bruno, Jr | Emergency escape openable skylight |
| US5495915A (en) * | 1990-04-10 | 1996-03-05 | Charles A. McDonnell | Collapsible ladder |
| AT400737B (en) * | 1994-03-04 | 1996-03-25 | Minka Holz Und Metallverarbeit | Hatch, in particular for loft staircases |
| DE19717207C1 (en) * | 1997-04-24 | 1998-12-10 | Columbus Treppen Gmbh | Extendible ladder for loft trap door |
-
2004
- 2004-04-16 GB GB0408475A patent/GB2413148A/en not_active Withdrawn
-
2005
- 2005-04-15 US US11/578,525 patent/US20070234654A1/en not_active Abandoned
- 2005-04-15 JP JP2007508305A patent/JP2007532809A/en active Pending
- 2005-04-15 EP EP05733732A patent/EP2102429B1/en active Active
- 2005-04-15 ES ES05733732T patent/ES2370645T3/en active Active
- 2005-04-15 DK DK05733732.1T patent/DK2102429T3/en active
- 2005-04-15 AT AT05733732T patent/ATE519000T1/en active
- 2005-04-15 WO PCT/SE2005/000550 patent/WO2005100716A1/en active Application Filing
- 2005-04-15 CA CA2562409A patent/CA2562409C/en active Active
- 2005-04-15 CN CNB2005800172755A patent/CN100447371C/en active Active
- 2005-04-15 AU AU2005233496A patent/AU2005233496B2/en active Active
- 2005-04-15 NZ NZ550323A patent/NZ550323A/en not_active IP Right Cessation
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3653463A (en) * | 1970-06-22 | 1972-04-04 | E T Hannan & Associates Inc | Collapsible ladder arrangement |
| WO1991015651A1 (en) * | 1990-04-10 | 1991-10-17 | Safescape Limited | Collapsible ladder |
| GB2263932A (en) * | 1992-02-01 | 1993-08-11 | Telesteps Limited | Loft ladder. |
| CN2571986Y (en) * | 2002-09-25 | 2003-09-10 | 王国华 | a telescopic ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| US20070234654A1 (en) | 2007-10-11 |
| AU2005233496B2 (en) | 2011-03-24 |
| EP2102429B1 (en) | 2011-08-03 |
| WO2005100716A1 (en) | 2005-10-27 |
| AU2005233496A1 (en) | 2005-10-27 |
| GB2413148A (en) | 2005-10-19 |
| CN1997800A (en) | 2007-07-11 |
| ES2370645T3 (en) | 2011-12-21 |
| DK2102429T3 (en) | 2011-10-24 |
| GB0408475D0 (en) | 2004-05-19 |
| CA2562409A1 (en) | 2005-10-27 |
| JP2007532809A (en) | 2007-11-15 |
| EP2102429A1 (en) | 2009-09-23 |
| ATE519000T1 (en) | 2011-08-15 |
| NZ550323A (en) | 2009-10-30 |
| CA2562409C (en) | 2012-08-07 |
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