Security and Escape Apparatus for Use with a Window

摘要

A security and escape apparatus for use with a window mounted in a wall at a position spaced above a support surface is disclosed. According to one aspect of the invention track members of a first bar section are S-shaped in cross-section so as to carry a second bar section thereon and thereby allowing the bar members of the bar sections to be uniform in length. According to another aspect a release mechanism comprises an abutting portion which is positioned beneath the bar sections to retain the sections across a window opening. The abutting portion is positioned horizontally outwardly of the bar sections such that the bar sections can extend to form a ladder beneath the window opening. According to another aspect the apparatus includes a window frame mounting arrangement cooperative with the obstructing position for resisting dismantling of the apparatus.

主权项

1. A combination of a window mounted in a wall at a position spaced above a support surface and a security and escape apparatus comprising:
the window having:
a head at a top of the window;a sill at a bottom of the window;side jambs at opposing sides of the window spanning between the sill and the head;an egress opening delimited by a window frame which is collectively defined by the sill, head, and side jambs; the security and escape apparatus having:
at least one bar section comprising a pair of upright track members spaced apart from one another and a plurality of bar members extending transversely between the pair of track members at longitudinally spaced positions along the track members;a pair of main rails oriented upright and respectively mounted to each side jamb so as to be located horizontally outward of the window frame away from the wall;the track members of a first one of the at least one bar section being mated to the main rails such that the first bar section is vertically slidable relative to the main rails in a longitudinal direction;the at least one bar section being movable relative to the window frame in vertical sliding movement between a first obstructing position in which at least one of said at least one bar section is obstructing the egress opening and a second extended position in which each bar section is disposed below the egress opening so that the bar members define ladder rungs usable for exiting through the egress opening unobstructed by each bar section;wherein the at least one bar section comprises two bar sections, a second one of the bar sections being mated to the first bar section so as to be vertically slidable relative to the first bar section;wherein each track member of the first bar section comprises a pair of upright channels which are disposed horizontally side-by-side, a first one of the channels slidably receiving one of the main rails therein and a second one of the channels slidably receiving one of the track members of the second bar section therein such that at least one bar member of the first bar section and at least one bar member of the second bar section are equal in length between the track members of the respective bar section.