CA1239313A - Protective device - Google Patents

Abstract

ABSTRACT OF THE DISCLOSURE

A protective device for a building adapted to be installed at a window to prevent ingress. The device comprises a first member to be attached at one edge of the window. A second member is mounted at a further edge of the window. Each member includes recesses formed in it. A
bar extends between a pair of opposed recesses to prevent ingress. The bars are located by the attachment of the members to the window surround. The device is simple to install, relatively cheap yet effective as protection.

Description

~235~313 5183_4 This invention relates to a protective device for a building. The device is to be installed inside a window so that, for example, illegal entry is prevented.
Devices for preventing illegal entry into a building are well known. Typically they comprise bars placed across the window and spaced in such a way that a human cannot pass between them. However, the prior systems of protecting windows in this way have proved difficult.
Typically, they comprise a frame made to fit a particular window and having bars welded to and extending between mom-biers positioned at the sides or at the top and bottom of the window. The production of such a unit is expensive in that each window must be treated individually and small errors may necessitate scrapping one item produced and starting all over again.
The present invention seeks to produce a protect live device that is extremely simple to install and, in particular, can be installed by the homeowner by himself.
Indeed, in a preferred embodiment the invention provides a kit of parts to be used by the homeowner to install protect live devices on his windows.
Accordingly, in a first aspect, the present invention is a protective device for a building adapted to be installed at a window to prevent ingress, the device comprises a first member adapted to be attached at one edge _ 1 _ ' ~Z39313 of the window; a second member adapted to be mounted at a further edge of the window, opposed to the first member;
each member being a channel member of generally U-shape, the U having limbs joined by a bridge, with a flange extending outwardly from one limb of the U, at the end of the limb remote from the bridge; holes to receive screws formed in each flange; recesses formed in each channel member at predetermined centers; respective bars for extending between opposed pairs of said recesses to prevent ingress; holes extending through each channel member to permit locating means to extend into the channel member to locate the bars, the bars also being located, when the device is in its useful position, by the attachment of the members to the window edges.
In a further aspect the invention is a kit of parts for a protective device to be installed at a building window to prevent ingress through the window, the kit comprising a channel member of generally U-shape, the U
having limbs formed by a bridge with a flange extending outwardly from a limb of the U, at the end of the limb remote from the bridge, the channel member being of a length so that it can be cut to lengths to fit at two opposed edges of the window; recesses formed in the channel member at predetermined centers; at least one bar length in the kit that can be cut to provide a plurality of bars, each bar to be positioned to extend between a pair of opposed recesses to prevent ingress at the building window;
holes in the channel member to permit locating means to extend into the channel member to locate the bars.
Aspects ox the invention are illustrated, by way of example, in the drawings, in which:
Figure 1 is a window protector according to the present invention;
Figure 2 is a detail of Figure 1; and Figure 3 illustrates a further embodiment.
Figure illustrates a window having a top edge 2 and a bottom edge 4 and side edges 6. There are protector bars 8 extending across the window. Figure 2 illustrates the installation of those bars according to one aspect of lZ39313 the present invention behind a window pane 10. Figure 2 illustrates a first channel 12 attached to the top edge 2 of the window and a second channel 14 attached to the bottom edge 4 of the window, opposed to the first channel 12. The channel members 12 and 14 have recesses 16 and 18 respectively formed at predetermined centers and the bars 8 extend between these recesses 16 and 18, between opposed pairs, at centers close enough to prevent ingress. The channel members are generally U-shaped, the U having limbs 20 and 22 joined by a bridge 24. There is a flange 26 extending from one limb 22 of the U, remote from the bridge 24 and holes 28 are formed in the flange 26. Screws 30 extend through these holes 28 to engage in the window ledge or in the upper edge of the window. The recesses 16 and 18 are formed in the bridges 24 of the U. In the illustrated embodiment of Figure 2 there are holes 32 extending through limb 22 of the U and these holes 32 may be threaded so that screws 34 inserted into them abut the bars 8 to locate them. Alter-natively, a threaded hole may be provided in the bars 8 and the hole 32 in the channel member is then clear.
Figure 3 shows a modification in which the recesses 16 and 18 are positioned in a limb of the U and may be used if the window shape, for example, prevents use of the Figure

2 embodiment.
The present invention is particularly applicable for sale as a kit at a hardware store to be installed by the owner of a private house. To install the protective device of the invention first the window is measured and a length ~2393~3 of channel member in the kit then cut to the required length. A second length of channel member is cut and both channel members are then desirably placed over the bars and the pieces, the upper and the lower channel members and the bars extending between them, then insert in the window.
Simple screwing in of the screws 30 through the holes 28 in the flange 26 then secures the bars in position as in Figure 1 to protect the window. If necessary, screws 34 may be inserted to locate the bars in position. With a kit sold like this all the recesses 16 and 18 need not be used to receive a bar 8. For example, it may be sufficient to attach a bar 8 in every other recess 16 and 18 in the chant not members.
Similarly, there is no restriction as to where the channel members are to be mounted. They can be placed at the side edges 6 of the window.
In the Figure 3 embodiment the recesses 16 and 18 are not formed in the bridge of the U but in the limb 20 of the U, remote from the flange 26. Recesses 16 and 18 may also be formed in limb 22. The device in Figure 3 is installed with the recesses facing towards each other as in Figure 2.
The protector bars and the channel may be made of aluminum which provides a noncorroding end thus more attractive appearance for a private house. However, it is equally appropriate to make the components of steel ~23~313 The device may be mounted outside a window although inside is preferred. If outside then it is pro-furred to remove or hide the heads of the screws 30. The channel members shown may be replaced by solid bars with recesses formed in them or, indeed, any other shape. The bars 8 need not be vertical but may extend across the win-down they may be solid and their cross section is unimpor-lent. Screws 34 are not essential. The bars 8 may simply rest in the recesses.

I

Claims (7)

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A protective device for a building adapted to be installed at a window to prevent ingress, the device comprising:
a first member adapted to be attached at one edge of the window;
a second member adapted to be mounted at a further edge of the window, opposed to the first member;
each member being a channel member of generally U-shape, the U having limbs joined by a bridge, with a flange extending outwardly from one limb of the U, at the end of the limb remote from the bridge;
holes to receive screws formed in each flange;
recesses formed in each channel member at prude-termined centers;
respective bars for extending between opposed pairs of said recesses to prevent ingress;
holes extending through each channel member to permit locating means to extend into the channel member to locate the bars, the bars also being located, when the device is in its useful position, by the attachment of the members to the window edges.

2. A kit of parts for a protective device to be installed at a building window to prevent ingress through the window, the kit comprising a channel member of generally U-shape, the U having limbs formed by a bridge with a flange extending outwardly from a limb of the U, at the end of the limb remote from the bridge, the channel member being of a length so that it can be cut to lengths to fit at two opposed edges of the window;
recesses formed in the channel member at prede-termined centers;
at least one bar length in the kit that can be cut to provide a plurality of bars, each bar to be posi-tioned to extend between a pair of opposed recesses to pre-vent ingress at the building window;
holes in the channel member to permit locating means to extend into the channel member to locate the bars.

3. A protective device as claimed in claim 1 in which the recesses are formed in the bridge of the U and the holes extend through the limb of the U adjacent the flange.

4. A protective device as claimed in claim 1 in which the recesses are formed in one limb of the U and the holes extend through the bridge of each U.

5. A kit as claimed in claim 2 in which the recesses in the channel member are formed in the bridge of the U and the holes extend through a limb of the U adjacent the flange.

6. A kit as claimed in claim 2 including the necessary screws to mount the device at a window.

7. A kit as claimed if claim 2 in which the recesses are formed in one limb of the U, and the holes extend through the bridge of the U.