GB2216935A

GB2216935A - Security barrier

Info

Publication number: GB2216935A
Application number: GB8807043A
Authority: GB
Inventors: Anthony Steven Hulland
Original assignee: SALEDATA Ltd
Current assignee: SALEDATA Ltd
Priority date: 1988-03-24
Filing date: 1988-03-24
Publication date: 1989-10-18
Also published as: GB8807043D0

Abstract

An adjustable security barrier for a window or other opening, comprises a plurality of overlapping panel sections 1, 2, 3, 4 slidable over each other to suit the area of the opening and means for fixing the panel sections relative to each other and said opening. The fixing means may be adjustable screw jacks passing through holes b and corresponding slots. The panel 3 which is outermost may be reinforced by strip 18. <IMAGE>

Description

AN ADJUSTABLE SECURITY BARRIER This invention relates to an adjustable security barrier particularly but not exclusively intended for a window opening.

It is well known to protect window and door openings with a variety of security barriers. Thus in the case of windows it is known to provide external grills connected to internal cross members by ties penetrating the window frame or lights. This security system has the disadvantage that the window opening must first be measured and a grill then fabricated off-site to the requisite dimensions.

Furthermore, securement of the grill involves damage to the window by the ties and although this may be unimportant where a property is derelict in other cases it may be unacceptable.

It is an object of the present invention to provide a security barrier in which these disadvantages are obviated or mitigated.

According to the present invention there is provided an adjustable security barrier for a window or other opening, comprising a plurality of overlapping panel sections slidable over each other to suit the area of the opening and means for fixing the panel sections relative to each other and said opening.

Preferably, the panel sections have side portions with overlapping fixing apertures through which the fixing means can engage a frame of the opening. The fixing means may be one or more adjustable props for engaging the sides of the opening through said fixing apertures.

The invention will now be further described by way of example only with reference to the accompanying drawings in which: Fig. 1 is a perspective view from the inside of the panel part of one embodiment of adjustable security barrier in accordance with the invention; Fig. 2 shows an adjustable prop for use with the panel part of Fig. 1; Figs. 3 and 4 show the panel part of Fig. 1 fitted to two window openings of different width; Fig. 5 corresponds to Fig. 4 but with the panel part adjusted to admit light, and Fig. 6 is a view corresponding to Fig. 1 of a second embodiment of the panel part of the security barrier.

Referring now to Fig. 1, the panel part of the security barrier is made of galvanised steel and comprises four overlapping panel sections 1, 2, 3 and 4 of congruent rectangular shape each with two free edges la, lb ... 4a, 4b adjacent an inner corner and two side walls lc, ld ... 4c, 4d projecting from the other two edges. The side walls of the panels 1 and 3 have plain edges which are slidably received in channel formation formed by the rolled edges of the overlapping wall sections of the adjacent panel sections 2 and 4. As seen in Fig. 1 the overlapping array of panel sections 1 - 4 slidably interengaging each other forms an inwardly open rectangular box of variable area that can be presented to window openings of different dimensions.Fixing apertures 5 are provided in the side walls at the top and bottom and sides of the panel part with the central holes 5 formed in the panel elements 1 and 3 registering with corresponding holes or a slot in the underlying panel members 4 and 2 respectively.

Fig. 2 shows an adjustable prop 8 which extends vertically across the window opening and has pointed ends 9, 10 penetrating the fixing apertures 5 described above. The prop 8 is of conventional construction with an internally screw-threaded tube 11 telescopically received in a square section body 12 and projecting therefrom to an extent determined by a supporting peg 13 which fits in a selected locating hole 14 in the body 12. Projecting from the upper end of the tube is a threaded rod 15 on which are mounted a fixed nut 16 which is rotated to extend and retract the rod 15 relative to the tube 11, and, adjacent the upper end of the rod 15, a locking nut 17 rotatable relative to the rod 15.

The panel part of the security barrier is assembled off-site and delivered in a compact form with all the panel sections fully overlapping. The panel sections are then slid apart e.g. to the extent shown in Fig. 1 to suit the window opening. The appropriate number of props 8 (two in Fig. 3 and three in Figs. 4 and 5) are positioned to interlock the panel sections relative to each other and to the opening. This involves tightening of the fixed nuts 16 in order to engage the pointed ends 9, 10 of the props in the window frame. As shown in Fig. 4 the locking nuts 17 hold the top of the panel part against the top of the window opening and these nuts may be lowered as far as the fixed nuts in order to drop the top of the panel part slightly and create a gap for daylight entry as shown in Fig. 5.

The embodiment of Fig. 6 is similar to that of Fig. 1 save that the panel sections are manufactured of clear, high strength plastics material (which may be reinforced with a steel mesh) connected to the steel side walls by rivets or other suitable fixing means.

It will be appreciated that one internal corner of panel section 3 is exposed on the outer surface of the panel - part and in order to reduce the risk of unauthorised entry by forcing back this corner the section 3 may #be strengthened by means of a steel strip 18 extending between this corner and the diagonally opposite corner.

The panel part may be rectangular and depending on the shape of the window it may be used with its long axis vertical or horizontal. The same panel part may thus be used for a range of different sizes and shapes of window (or door or other) openings.

Furthermore, two or more panel parts may be mounted side-by-side to protect a large opening and in this case the side openings 5 can receive bolts for fixing the adjacent panels together.

It will be appreciated that numerous additional modifications may be made without departing from the scope of the invention. For example, the steel panel sections may be perforated in order to admit daylight.

Claims

CLAIMS:

1. An adjustable security barrier for a window or other opening, comprising a plurality of overlapping panel sections slidable over each other to suit the area of the opening and means for fixing the panel sections relative to each other and said opening.

2. A security barrier as claimed in claim 1, wherein the panel sections have side portions with overlapping fixing apertures through which the fixing means can engage a frame of the opening.

3. A security barrier as claimed in claim 2, wherein the fixing means comprises one or more adjustable props for engaging the sides of the opening through'said fixing apertures.

4. A security barrier as claimed in claim 3, wherein the panel sections are capable of movement relative to the props so as to uncover part of the opening for admission of daylight.

5. A security barrier as claimed in any one of the preceding claims, wherein the panels together form an inwardly open rectangular box of variable area that can be presented to openings of different dimensions, the panel sections being four in number and each defining a corner of the box, the outermost panel being reinforced to prevent unauthorised entry.

6. An adjustable security barrier for a window or other opening, substantially as herein described with reference to the accompanying drawings.