AU2005100513A4 - Domestic Upper Floor Fire Escape - Google Patents

Description

FROM :fackintcsh-Richard Sonia FXN.:24843 u.2 050:8MP FAX NO. :02 48844230 Jun. 22 2005 03:38PM P2 -:;uaWe8IsG BuInoiioj G141l !peqposep 91 U~flUOAU! S1IJj HNOS 3WU blOIlfl3ddfl OI4LSa wOo *O031±1NM NOIJIN3ANI 2l110:O NOUlVOId1csds lYNOISIAQ~td 066t. 4V S:1UG;Rd vnvatsv COMS IDNo: SBMI-01 313067 Received by IP Australia: Time 15:40 Date 2005-06-22 Z-9o-9OoZ(P-rd-Ak) GIG Lg.(w:H) awlj :eile4lV dl Aq PaA'9aa L9OS3L--WJS:o0 ci SL$J03 0 0 ;2 Ci The present Invention relates to an escape hatch assembly to enable persons on the second storey of a building to make their way to safety en in the event of a fire and with no alternative escape route.

Many fire escapes consist of stairways and landings of a permanent fixture. These larger structures are mostly unsuitable for domestic applications and leave buildings susceptible to intruders from the outside.

It Is an object of the present invention to contain an entire ladder assembly within a framed structure in the wall cavity of a domestic building, which, when opened and released, will provide a safe exit for persons trapped in the upper storey during a fire.

In accordance with the invention, there is provided, an internal door, hinged at just above floor level, noting that the safest air to breathe during an evacuation from a fire is near the floor.

When the internal door is opened inwards and downwards, access is made to the external door of the structure.

The external door is also hinged at the bottom of the structure, and has attached to it, via brackets, a wire-rope ladder assembly. When this door is opened outwards and downwards, the ladder assembly is automatically deployed, providing opportunity for a safe exit down the side of the building, Both internal, and external doors are fitted with grab rails with the 2d WLd6:20 S0og F unf 02Etfl88p 1: ON XU- eTUOS S pae3o.d-so4UpAOEW:

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ZZ-90-9OOZ ae O:g. allj :e!lejlsnv dl Aq paA!aDO9 Z9OL.I-lSIaS :ON Cl1 SItOO 0 0 i 3 c-i c internal door also having a latch mechanism enabling it to lock open 0 and not flip up during exit.

When both doors are opened, access is provided through a passage 0 0700mm by 500rmm to the outside of the building, and to ground level via the ladder.

In order that the invention may be readily understood and put into practical effect, reference will now be made to the accompanying drawings, in which:- Fig I is a section view showing the assembly installed in the wall cavity with internal and external doors in the open position.

Fig 2 is a section view showing the internal and external doors in the closed position with the ladder stored inside.

Fig 3 shows internal and external doors in the open position as viewed from outside the building with the ladder deployed.

Fig 4 shows internal door open only, external door closed and ladder stored as viewed from inside the building.

Referring to Fig 1 There is shown the unit installed in the wall cavity, the steel box which is the assembly's frame, with internal door (20) and external door with hinges attached to the base on both the internal door (28) and external door so they may be opened. The external door, once opened, automatically deploys a wire.

vd Nd6E:£0 s0 zE -un£ 0£Erv88e z0: "ON XtU eTuos -8 PJte3TtoN-soJTuAOEN: WONA Z-9o-sOOZ(P-VJ-AJ Iewa-atcgk(w:-) aw!j e!I1sflV dl Aq paAisOQ J L9OSLSLO-IVJSS :o0 ai swoo 0 0 i o4 c-i rope ladder (26) which is attached to the external door by means of 2 en brackets Locking latch for Internal door not shown.

SReferring Fig 2 There is shown the external door (23) In the closed position as part of the external wall of the building The rope ladder (26) Is contained within the steel box frame The internal door C also In the closed position as part of the Internal wall of the building Item 12 in Fig 2 represents the floor of the building.

Referring Fig 3 There is shown the external wall The external door (23) of the fire escape is In the open position, and the rope ladder (26) is extended to the ground. Steel box frame (22) can be clearly seen around full perimeter of opening.

Referring Fig 4- There is shown the internal door (20) in the open position. Rope ladder (26) Is in the stored position within the cavity and the external door (23) Is in the closed position. The internal wall (13) and floor (12) are shown to highlight proximity of opening to floor level within the building.

Design modifications may be made in details of design and construction without departing from the scope and ambit of the Invention.

Dated this 15 t h of June, 2005.

Richard Mackintosh.

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