GB2287054A

GB2287054A - Window security guard

Info

Publication number: GB2287054A
Application number: GB9404280A
Authority: GB
Inventors: Ronald Richard Webb
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-05
Filing date: 1994-03-05
Publication date: 1995-09-06
Also published as: GB9404280D0

Abstract

A window security system comprises an outer frame 2 which is fixed into the recess of a window aperture. A strong lattice work area, grill or similar construction 4 is secured within a suitable framework 1 to form a module which can be fitted into the outer frame 2. The module can be locked in position within the outer frame by key operated locks 3 which are situated at intervals around the perimeter of the modules. <IMAGE>

Description

WINDOW SECURITY SYSTEM This invention relates to a window security system.

Window security systems are well known and can take the form of double glazing systems and secondary locking systems. Most of these security systems do not prevent glass being broken and access obtained by breaking the locking system. There does exist the obvious use of either straight rods or bars in the form of a lattice work area or similar construction. These secondary security systems are usually permanently secured to the window surround by screws or other fixing means.

According to the present invention there is provided a lattice work area or similar type of construction made from material that cannot be easily cut whereby this construction is made up of one or more modules to cover the whole of the window area. This construction is fitted into a suitable frame, this frame incorporates a means of securing the module to an outer frame which is secured to the perimeter of the window.

A specific embodiment of the invention will now be described by way of example with reference to the accompanying drawing in which: Figure 1 shows in perspective, the modules set in their position within the main frame.

Figure 2 shows a cross section of the complete assembly showing two modules in situ within the outer fixed frame.

Figure 3 shows a locking arrangement whereby the modules are secured to the outer frame.

Figure 4 shows a vertical cross section with the upper and lower horizontal sections fixed to the main window frame.

Figure 5 shows the method of installing this system to two typical bay windows.

Referring to the drawing of figure 1. it can be seen that in this particular construction two modules 1. are fitted to the outer fixed frame 2. Each module in this instance is fixed at six locking points. Any additional modules will be fixed only at the top and bottom edges.

The figure 2 shows a cross section through the assembly as shown in figure 1. The outer frame 2 is clearly shown with the the module frame 1 in situ.

Although the locking units are not shown in this cross section they would be positioned as shown in figure 1. It can be seen that there is a gap between the two adjacent modules but that this gap would not be sufficient to allow the module to slide and release the the locks on the vertical sides. The lattice work 4 is held in position by the locking section 5.

Figure 3 shows a cross section through the outer frame and module frame where a locking unit exists. The locking unit consists of four parts. The outer case 6 of the locking unit is fixed to the front face of the module frame 1 by two screws. This housing 6 retains the rotating shaft 7 onto which is fixed the locking lever 8, the locking lever 8 is secured to the rotating shaft 7 by means of a screw or pin.

In the top of the rotating shaft 7 there is formed a shaped hole 12 which is designed to receive a key which fits into this shaped hole 12.

It important to note that the rib 13 has only a clearance of approximately 1.5 mm thus ensuring that when the module is fitted there is no excess vertical movement thus allowing the locking lever 8 to work free.

The lattice work 4 is fixed in position by the locking section 5.

Figure 4 shows a vertical cross section through the window recess. The timber window frame 14 has the outer frame 2 fixed to it by means of screws 16. It is essential when fitting the top and bottom sides of the outer frame that they are parallel throughout their entire lengths. This can be achieved by measuring the distance and fixing in the manner shown in the drawing or by using suitable packing and fixed to the upper and lower surfaces of the window recess. In either instance it is possible that a gap will exist between the outer frame section and the surfaces of the window recess. In this event it is suggested that a fillet section 15 is positioned between the window recess and the outer frame section 2. This fillet section 15 can also be used on the vertical sides of the outer frame.

Figure 5 shows the method of installing this system into typical bay windows.

The basic modules can be manufactured to suit and fitted as shown, whereby the outer frame is fixed to the window frames and the inner modules fitted and locked in position as previously outlined.

Claims

1. A window security system whereby a lattice work area is mounted within a frame and whereby ttlis framed assembly is locked to another which is fixed to a window recess. The framed assembly module is locked at intervals around its perimeter into the outer frame.

2. A window security system as claimed in claim 1 wherein the lattice work can be replaced by a series of vertical or horizontal bars.

3. A window security system as claimed in claim 1 whereby the framed assembly module is secured at only the top and bottom of the frame.

4. A window security system as claimed in claim 1 whereby the outer frame is secured to the vertical surface of the window frame.

5. A window security system as claimed in claim 1 whereby more than one framed assembly module is fitted into the outer fixed frame.

6. A window security system as claimed in claim 1 or claim 2 whereby the locking mechanism is situated within the outer frame section.

7. A window security system as claimed in claim 1 but where the inner framed assembly modules are hinged on one vertical side.

8. A window security system as claimed in claim 1 but where the inner framed assembly modules are hinged on one horizontal side.

9. A window security system as claimed in claim 1 where the lattice work area is retained by a soft lip attached to the locking strip.

10. A window security system as claimed in claim 1 where the lattice work area is retained by a soft lip attached to the frame which surrounds the lattice work area.