WO2007068959A1 - Ensemble d’échelle de secours - Google Patents

Ensemble d’échelle de secours Download PDF

Info

Publication number
WO2007068959A1
WO2007068959A1 PCT/GB2006/004734 GB2006004734W WO2007068959A1 WO 2007068959 A1 WO2007068959 A1 WO 2007068959A1 GB 2006004734 W GB2006004734 W GB 2006004734W WO 2007068959 A1 WO2007068959 A1 WO 2007068959A1
Authority
WO
WIPO (PCT)
Prior art keywords
ladder
storage box
holder
steps
rigid
Prior art date
Application number
PCT/GB2006/004734
Other languages
English (en)
Inventor
Frank Banks
Derek Windsor
Original Assignee
Frank Banks
Derek Windsor
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 Frank Banks, Derek Windsor filed Critical Frank Banks
Publication of WO2007068959A1 publication Critical patent/WO2007068959A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C9/00—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes
    • E06C9/06—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted
    • E06C9/14—Ladders characterised by being permanently attached to fixed structures, e.g. fire escapes movably mounted with non-rigid longitudinal members, e.g. rope or chain ladders, ladders of the lazy-tongs type
    • E—FIXED CONSTRUCTIONS
    • E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06C—LADDERS
    • E06C7/00—Component parts, supporting parts, or accessories
    • E06C7/08—Special construction of longitudinal members, or rungs or other treads
    • E06C7/081—Rungs or other treads comprising anti-slip features

Definitions

  • the present invention relates to escape ladders and more particularly pertains to a new escape ladder assembly for permitting a user to escape through a window of an upper story of a building.
  • escape ladders are known in the prior art. More specifically, escape ladders heretofore devised and utilized are known to consist basically of familiar, expected and obvious structural configurations, notwithstanding the myriad of designs encompassed by the crowded prior art which have been developed for the fulfilment of countless objectives and requirements.
  • the applicant's earlier patent GB2350145 discloses an escape ladder assembly whereby one end of the ladder is fixed to the body of a storage box and the other end of the ladder is fixed to the lid of the storage box. The ladder is simply extended by detaching the lid from the box and throwing it away from the box out of a window.
  • the ladder assembly of this patent has proven to be very successful, the ladder assembly does have limitations, particularly with the size and length of the ladder within the assembly.
  • the present invention provides a new modified ladder assembly that does not suffer from the above-mentioned limitations.
  • a ladder having a spaced apart pair of elongate flexible side runners and a plurality of steps extending between the side runners and spaced apart from each other along the length of the side runners, a holder and a storage box
  • the holder comprises a main body having a handle
  • the storage box having a body in which, in use, the holder and ladder can be disposed and wherein at least part of the ladder is detachably coupled to the holder and one end of the ladder is fixed to the body of the storage box whereby the holder can be thrown free of the storage box enabling simple and effective extension of the ladder.
  • the steps may comprise plastic materials or metal materials, other suitable materials will no doubt occur to the skilled addressee.
  • the elongate flexible runners may comprise a rope, cable or chain of fire retardant material.
  • the runners may be made of Kevlar or similar fire retardant material.
  • the storage box may, optionally, comprise means for attachment to a wall or a window frame.
  • Figure 1 is a schematic plan view of a new escape ladder assembly in use unfurled from a window of a building according to the present invention
  • Figure 2 is a schematic breakaway side view of the present invention in use unfurled from a window of a building;
  • Figure 3 is a schematic cross sectional view of a rigid step
  • Figure 4 is a schematic top plan view of a rigid step
  • Figure 5 is a schematic bottom view of a rigid step with the location where the adjacent segments of the flexible members. are folded when the rigid steps are stacked in the storage box illustrated in phantom lines;
  • Figure 6 is a schematic view of a ladder holder constructed in accordance with the present invention.
  • Figure 7 is a schematic perspective view of the storage box.
  • FIG. 8 shows in more detail one arrangement for securing a rigid step to a flexible member.
  • the assembly generally comprises a ladder 2 having a spaced apart pair of elongate flexible members 4, 6 and a plurality of steps 8 extending between the flexible members 4, 6 of the ladder 8.
  • Each of the flexible members 4, 6 has opposite upper and lower ends 10, 12.
  • the elongate flexible members are made of a fire-retardant material such as KevlarTM or, alternatively can be made of rope or similar material.
  • Figure 6 illustrates a holder 14 designed to have fixed thereto the lower end 12 of the ladder 2.
  • a top end 16 of the holder 14 has an elongate aperture 17 formed therein such that the top end 16 forms a handle 18 for the rest of the holder 14.
  • the ladder steps 8 comprise a plurality of stackable rigid steps 20 and a plurality of flexible steps 22.
  • the rigid steps 20 are arranged in a row extending along the flexible members 4,6 positioned towards the upper ends 10 of the flexible members 4,6.
  • the flexible steps 22 are arranged along the flexible members 4, 6 in a row extending along flexible members 4, 6 between the row of rigid steps 20 and the lower ends 12 of the flexible members 4,6.
  • the flexible steps 22 are formed from the same or similar material as the flexible members 4,6.
  • each of the rigid steps 20 has an outer perimeter 24 comprising a spaced apart pair of ends 26, 28, and a pair of sides 30, 32 extending between the ends 26, 28 of the respective rigid step 20.
  • Each of the rigid steps 20 preferably has an upper face 34 with a generally rectangular frictionally enhanced surface 36 with respect to a relatively smooth surface to frictionally enhance contact between the upper face 34 of the respective rigid step 20 and a foot of a user rigid stepping on the upper face 34 and engaging the frictionally enhanced surface 36 to help prevent a user from slipping on the respective rigid step 20.
  • Each of the rigid steps 20 has a downwardly depending lower lip 38 extending around the outer perimeter 24 of the respective rigid step 20.
  • the lower lip 38 of each rigid step 20 has a pair of side cutouts 40, 42 therein with one of the side cutouts 40 located adjacent one side of the respective rigid step 20 and the other of the side cutouts 42 located adjacent the other side of the respective rigid step 20.
  • the side cutouts 40, 42 form a spaced apart pair of stacking feet 44, 46 in the respective lower lip 38 with one foot 44 positioned adjacent one end of the respective rigid step 20 and the other foot 46 positioned adjacent the other end of the respective rigid step 20.
  • Each of the rigid steps 20 has a spaced apart pair of generally circular holes 48, 50 therethrough with one of the holes 48 of each rigid step 20 positioned adjacent one end of the respective rigid step 20 and the other hole 50 of each rigid step 20 positioned adjacent the other end of the respective rigid step 20.
  • a first of the flexible members 4 is extended through a first of the holes 48 of each of the rigid steps 20 and a second of the flexible members 6 is extended through a second of the holes 50 of each of the rigid steps 20.
  • the flexible members 4, 6 are generally tubular.
  • a plurality of plugs 52 are located within each flexible 4, 6 member such that the plugs 52 can move inside the respective flexible member 4, 6 along at least part of its length.
  • Each plug 52 is frustro-conical in shape.
  • Each plug 52 has a base 54 which is wider in diamater than the main portion of the plug 52. wider diameter than the holes formed in each rigid step.
  • the diameter of the base 54 of each plug 52 is larger than the diameter of the holes 48, 50 formed in the rigid steps 20. Consequently, a plug 52 is able to only extend partly through a respective hole 48, 50 up to a point where the plug 52 becomes lodged within that hole 48, 50.
  • the material of the of the respective flexible member 4, 6 if firmly lodged between the plug 52 and the inner surface of the hole 48, 50, thereby locking the rigid step 20 in a position along the flexible members 4, 6 of the ladder 2 (see Figure 8).
  • each plug 52 cannot be detached from the hole 48, 20 without considerable force. Furthermore, each plug 52 extends upwardly from the underside of the rigid step 20 such that any pressure on that step 20, caused by a person standing on the step 20, forces the step 20 downwardly onto the plugs 52 thus locking the step 52 against the flexible members 4, 6 more firmly.
  • each flexible member 4, 6 may be restricted at specific intervals along its length to prevent movement of a plug 52 in one direction along the flexible member 4, 6 at each point of restricted width.
  • the ladder 2 is detachably coupled to the holder 14 with the rigid steps 20 stacked upon one another against the holder 14 .
  • the segments of the flexible members 4, 6 are folded between the adjacent steps 40 and positioned in a lower space defined by the lower lip 38 of the upper one of the associated steps 20.
  • the flexible steps 22 and a corresponding remainder portion of each flexible member 4, 6 are folded and stacked on the stack of rigid steps 20 against the holder 14.
  • a generally rectangular storage box 56 having a back 58, a bottom 60, a spaced apart pair of sides 62, a front 64 and an open top 66.
  • the back 58 of the storage box 56 is designed for mounting to a wall surface 68 beneath a window 70 of a building.
  • the back 58 of the storage box 56 has a plurality of mounting tabs 72 extending therefrom.
  • Each of the mounting tabs 72 is designed for extending a fastener 74 therethrough and into the wall surface 68 to mount the back 58 of the storage box 56 to the wall surface 68.
  • the holder 14 carrying the ladder 2 is disposed within the storage box 20 (see Figure 7).
  • the upper ends 10 of the flexible member 4, 6 of the ladder 2 are coupled to the storage box 20.
  • the handle 18 of the holder 14 is easily accessible when the holder 14 is disposed within the storage box 20 such that the holder 14 can be quickly and easily lifted out of the storage box 20 when use of ladder 2 required.
  • the holder 14 In use, the holder 14 is lifted from the storage box 56 so that the ladder 2 may be unfolded and thrown over the sill of the adjacent window 70 so that the ladder 2 unfurls downwards from the window 70 to the ground with the row of rigid steps 20 closer to the window 70 than the row of flexible steps 22 as illustrated in Figures 1 and 2.
  • the coupling of the holder 14 to the lower ends 12 of the flexible members 4, 6 is designed for providing some weight at the lower ends 12 of the flexible members 4, 6 to help the ladder 2 unfold to its deployed position and rests on the ground when the ladder 2 is fully deployed from the window 70.
  • a smoke alarm and/or a light is provided on the storage box 56 so that the presence of smoke can be detected and in such an event, the storage box 56 can still be easily located.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

La présente invention concerne une échelle possédant une paire espacée de coulisseaux latéraux flexibles avec une pluralité de marches entre eux. L’échelle comporte aussi un élément porteur et un boîtier de rangement, une extrémité de l’échelle étant fixée à l’élément porteur et l’autre extrémité au boîtier de rangement.
PCT/GB2006/004734 2005-12-15 2006-12-15 Ensemble d’échelle de secours WO2007068959A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0525462A GB0525462D0 (en) 2005-12-15 2005-12-15 Escape ladder asembly
GB0525462.8 2005-12-15

Publications (1)

Publication Number Publication Date
WO2007068959A1 true WO2007068959A1 (fr) 2007-06-21

Family

ID=35736123

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2006/004734 WO2007068959A1 (fr) 2005-12-15 2006-12-15 Ensemble d’échelle de secours

Country Status (2)

Country Link
GB (1) GB0525462D0 (fr)
WO (1) WO2007068959A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108227957A (zh) * 2018-03-20 2018-06-29 北京诺亦腾科技有限公司 一种承载刚体的手柄

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191012676A (en) * 1910-05-25 1911-04-20 Salomon Friezer Improvements in Safety Appliances for use in Case of Fire.
FR2114200A5 (fr) * 1970-11-19 1972-06-30 Flanagan Stephen
GB2262958A (en) * 1992-01-02 1993-07-07 Richard Franklin Broadbent Fire escape apparatus.
US6129178A (en) * 1999-05-19 2000-10-10 Shupp, Jr.; Ronald J. Escape ladder and housing assembly
GB2350145A (en) * 1999-05-06 2000-11-22 Frank Banks Escape ladder assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191012676A (en) * 1910-05-25 1911-04-20 Salomon Friezer Improvements in Safety Appliances for use in Case of Fire.
FR2114200A5 (fr) * 1970-11-19 1972-06-30 Flanagan Stephen
GB2262958A (en) * 1992-01-02 1993-07-07 Richard Franklin Broadbent Fire escape apparatus.
GB2350145A (en) * 1999-05-06 2000-11-22 Frank Banks Escape ladder assembly
US6129178A (en) * 1999-05-19 2000-10-10 Shupp, Jr.; Ronald J. Escape ladder and housing assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108227957A (zh) * 2018-03-20 2018-06-29 北京诺亦腾科技有限公司 一种承载刚体的手柄
CN108227957B (zh) * 2018-03-20 2024-01-30 北京诺亦腾科技有限公司 一种承载刚体的手柄

Also Published As

Publication number Publication date
GB0525462D0 (en) 2006-01-25

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