Fire escape – ladder – or scaffold – Wall- or floor-attached – Wall-mounted platform – with ladder
Patent
1997-05-09
1998-12-08
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Wall-mounted platform, with ladder
182 95, E06C 914
Patent
active
058457410
DESCRIPTION:
BRIEF SUMMARY
THE PRESENT INVENTION relates to an escape apparatus for installation in an upper storey of a building in the proximity of an emergency exit opening, such as a window, to enable escape from the upper storey of the building in the event of an emergency, such as a fire in the building.
It is an object of the present invention to provide a folding escape ladder apparatus which may be compactly installed in the proximity of the emergency exit and which can be easily and reliably unfolded and extended through the emergency exit when required.
Accordingly, the present invention provides an escape apparatus for installation within an upper storey of a building in the proximity of an emergency opening such as a window, which apparatus comprises a foldable ladder carried by a stage which is mounted on a fixed mounting frame for movement together with the folded ladder between a retracted position against the mounting frame to an extended position of use in which the stage projects through the emergency exit opening and in which the ladder may be unfolded from the stage to form a rigid ladder extending downwardly from the stage outside the building.
In order that the invention may be more readily understood, embodiments thereof will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic side view of a first embodiment of an escape apparatus according to the invention in a normal stowed condition;
FIG. 2 is a schematic side view showing the stage of the FIG. 1 escape apparatus in an extended position of use and a foldable ladder of the apparatus in a folded condition on the stage;
FIG. 3 is a schematic side view showing the stage of the Figure escape apparatus in its position of use with the ladder unfolded to form a rigid ladder extending downwardly from the stage;
FIG. 4 is a schematic side view of a second embodiment of an escape apparatus according to the present invention in the stowed condition, which apparatus has a cover which also serves as a child carrier in use of the apparatus;
FIG. 5 is a schematic end view of the child carrier of the FIG. 4 escape apparatus;
FIG. 6 is a schematic side view showing the FIG. 4 escape apparatus in its position of use with the child carrier positioned at the top of the unfolded ladder of the apparatus;
FIG. 7 is a schematic side view of the FIG. 4 escape apparatus showing the child carrier lowered to the bottom of the ladder;
FIG. 8 is a schematic side view illustrating a third embodiment of an escape apparatus according to the invention in its stowed position, which apparatus incorporates a foldable rescue platform at a lower end section of the ladder;
FIG. 9 is a fragmentary front view of the FIG. 8 escape apparatus, showing the rescue platform in a folded stowed condition;
FIG. 10 is a fragmentary front view of the FIG. 8 escape apparatus, showing the rescue platform in an unfolded position of use;
FIG. 11 is a schematic side view of the FIG. 8 escape apparatus, showing a lowermost section of the ladder in a folded condition with the rescue platform in its folded condition; and
FIG. 12 is a schematic side view of the FIG. 8 escape apparatus, showing the lowermost section of the ladder in an unfolded condition with the rescue platform opened out into in its position of use.
Referring firstly to FIGS. 1 to 3 of the drawings, a first embodiment of an escape apparatus according to the present invention comprises a fixed mounting frame 1, a stage 2 movable with respect to the mounting frame 1 and a foldable ladder 3 movable with respect to the stage 2.
The mounting frame 1 comprises a pair of parallel uprights 4 defining a slideway therebetween. The uprights 4 stand on respective plate like feet 5 and are interconnected by cross-bracing (not shown). The mounting frame 1 is installed in an upper storey of a building 6 in the proximity of an emergency opening, in the present case a window 7 having a sill 8. The feet 5 of the uprights 4 are secured to a floor 9 of the upper storey and the uprights 4 are secured to the wa
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Chin-Shue Alvin C.
Dwyer A M
Dwyer A. F.
Dwyer D. M.
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