SECURITY CLOSURE

Abstract: A security closure comprising a panel (1, 2) having inner and outer sides, holding means (4, 5) rigidly secured to or formed on the inner side of the panel, anchor means (7) of a length not substantially less than the height or width of the panel, and at least two spaced apart elongate connector means (8) interconnecting the holding means on the panel and each of the anchor means, each connector means (8) being adapted at one end to be releasably engaged with said spaced holding means (4, 5) and being so connectable with the anchor means (7) as to clamp an opening (12) surround between the panel inner side and the anchor means with the anchor means extending generally parallel to the panel.

Description: SECURITY CLOSURE The invention relates to a security closure for use in protecting windows and like openings in temporarily unoccupied premises. Property which is temporarily vacant for one reason or another, for example, during building renovation or between tenancies is being increaseingly subject to damage due to theft and vandalism. Early attempts to protect such property involved securing wooden or reinforced panels to the outer skin of the building around the opening. The means of fixing the panels have proved to be easily accessible from the outside and so lacking in security. A recent proposal of security closure comprises a panel having a shallow peripherally extending side wall having inwardly turned rim portions extending along opposed parallel sides of the panel and formed and arranged for captively retaining respective end portions of at least two support members so as to permit lateral sliding movement of the support members in a direction parallel to the opposed sides while restraining them against movement perpendicular to the principal plane of the panel. At least two spaced apart elongate connector means are connected to each of the support members and anchor means are provided having a length not substantially less than the length or width of the panel. The connector means and anchor means are formed and arranged for securing the connector means to the anchor means so as to clamp an opening surround between the panel side wall and the anchor means with the anchor means extending generally parallel to the panel. Since the means of fixing the panels are not easily accessible from outside, security is enhanced. However, the provision of the captive but slidable support members with the panel is a somewhat elaborate and expensive feature. According to the present invention there is provided a security closure comprising a panel having inner and outer sides, holding means rigidly secured to or formed on the inner side of the panel, anchor means of a length not substantially less than the height or width of the panel, and at least two spaced apart elongate connector means interconnecting the holding means on the panel and each of the anchor means, each connector means being adapted at one end to be releasably engaged with said holding means and being so connectable with the anchor means as to clamp an opening surround between the panel inner side and the anchor means with the anchor means extending generally parallel to the panel. Such a structure is easy to assemble and yet provides all the necessary security. Because the holding means are rigidly secured to or formed on the inner side of the panel there can be no possibility of their moving either during or after installation thereby facilitating installation and improving security. The panel can have any form but preferably has a shallow peripherally extending side wall having an inwardly turned rim. The holding means may comprise formations integral with the panel near the periphery thereof, but concealed by the side wall for example being formed on said side wall or on said inwardly turned rim. Preferably, in order to ensure that the connector means do not move laterally and again to improve security, the holding means define a plurality of spaced holding locations and said one end of said connector means is adapted to be releasably engaged with one of said spaced holding locations. Such a structure may take many forms and one of these are a number of apertures, notches or the like formed in the rim or in the side wall either integrally therewith or by tabs secured to or formed integrally with the side walls. An alternative approach is for the holding means to include at least one bar extending across said inner side of the panel, said bar being provided with a plurality of spaced projections or recesses to define said plurality of spaced holding locations. The or each bar may be secured to the inner side of the panel at any location but preferably it is secured to the side wall and/or to the side wall rim. With the construction of the present invention the connector means are preferably provided with a head or a hook which is engagable with the holding means and in particular engagable, where provided, at one of the spaced holding locations. In order that the present invention may more readily be understood, the following description is given, merely by way of example, reference being made to the accompanying drawings, in which:- Figure 1 is a perspective view of one embodiment of security closure according to the invention as it would appear when fitted to a window opening, but with a window opening omitted; Figure 2 is a plan view, in section, showing part of the closure of Figure 1 fitted in a window opening; Figure 3 is a view similar to Figure 2 of a modification; Figure 4 is a view similar to Figure 1 of a second construction; Figure 5 is an enlarged fragmentary view showing the edge of the panel of Figure 4; Figure 6 includes a perspective view and two fragmentary views of a third embodiment of closure according to the invention; Figure 7A to 7D illustrate two different methods of securing the rigid bar of Figure 6 to the panel; Figure 8 is a view similar to Figure 7B showing a modified form of bar; Figure 9 is a side elevation of a further embodiment; and Figure 10 is a perspective view, partly broken away, of the embodiment of Figure 9. It is envisaged to provide ranges of panels of three different heights each having two different widths. Referring to Figures 1 and 2, two panels 1 and 2 have the same height, but different widths in Figure 1 and the same width in Figure 2. This shows how various sizes of window openings which can be covered. Each panel has a peripherally extending side wall 3. The side wall 3 has an inwardly turned rim 4. The rim 4 is extended into a rim 5 turned back parallel to the side wall 3 and a rim 6 turned outwards parallel to the rim 4. The rims 5 and 6 constitute hook engageable formations integral with the panel near the periphery thereof but concealed by the side wall 3„ Anchor means are provided in the form of top hat section steel bars 7 each apertured along its length which is not substantially less than the height of either panel. A number of elongate connector means are provided each comprising a flexible steel strap 8 apertured along its length. At one end of the strap 8 a flat strip like hook 9 is attached and this is engaged over the rim 6. A bolt 10 with a T-shaped head (not shown) is inserted through convenient apertures in the strap 8 and the bar 7 and a wing nut 11 is tightened on the bolt 10 so as to clamp the surround of a window opening 12 between the panel side wall 3 and the bars 7 with the bars 7 extending generally parallel to the panel. Where two or more panels are used to cover one opening the adjacent side walls 3 are held together by a G-clamp 13 to which a bail 14 is secured for engagement by the hook 9. Figure 3 shows a modified construction in ^ which there is no extension of the inwardly turned rim and the bails 17 are welded to the inner surface of the side wall 3. Also shown in Figure 3 is a variation in that the flat strip like hook is replaced by a rod like hook. In the second construction illustrated in Figures 4 and 5 like parts are indicated with the addition of 20. It can be seen that holes 26 are spaced along the rim 25 and constitute hook engageable formations integral with the panel near the periphery thereof, but concealed by the side wall 23. Anchor means are provided in the form of top hat section steel bars 27 each apertured along its length which is not substantially less than the height of either panel. A number of elongate connector means are provided, each in the form of a wire rope 28 having, at one end, a safety hook 29 engaging with a selected hole 26. An externally screw threaded sleeve 30 carrying a wing nut 30A is slid over the wire rope 28 and inserted into the aperture in the bar 27 until the wing nut 30A abuts the bar 27. The wire rope 28 is pulled tight by hand and a screw clamp 30B is applied to the wire rope 28 in abutment with the sleeve 30 and possibly welded to the wire rope 28. Thereafter, the wing nut 30A is tightened. In an alternative arrangement the sleeve 30 is replaced by a bolt with an eye or a transverse hole at one end. The wire rope can be inserted at its free end through the eye or hole and jammed and kicked in place by a first wing nut. Only the bolt extends through the aperture in the bar 27 and a second wing nut on the bolt tightens the assembly. In a further construction illustrated in Figures 5 to 7, like parts to those of Figures 1 to 3 are shown with the addition of 30. Holding means are provided in the form of a top hat section steel bars 37 each apertured along its length which is not substantially less than the height of the panel. A number of elongate connector means are provided, each comprising a flexible seal strap 38 apertured along its length. At one end of the strap 38 a flat strip like hook 39 is attached, and this is engaged in a selected one of a number of recessed spaced apart holding location portions of an elongate supporting rod 40 formed between fixed c.ollars 41 spaced apart along the rod 40. Alternatively, the recessed portions may be machined from the rod and Figure 8 illustrates a strip like bar 40 with the recessed portions formed as notches 42. In Figure 7A and 7B end portions 42 extend outwards from cranked parts 43 and are held by bolts 45. In Figure 7C and 7D the end portions 42 extend inwards from end cranked portions 44 and the rim 34 is extended by a rim 35 turned back parallel to the side wall 33. A bolt 46 is inserted through apertures in the strap 38 and the bar 37, and a wing nut 48 is tightened on the bolt 46 so as to clamp the surround of a window opening between the panel side walls 33 and the bars 37, the bars 37 extending generally parallel to the panel. Where two or more panels are used to cover one opening, the adjacent side panels 31 are held together by a G-clamp 48 to which a bail 49 is secured for engagement by the hook 39. With the mounting bolts 45 fixed to the panel and the hooks 39 engaged in recessed portions of the support members, the installed panel is resistant to sliding movement caused by hammer blows in its principal plane. Furthermore, the assymetrical arrangement of the mounting bolts 45 renders the closure more adaptable to various situations without the need for a large number of mountings. Referring now to Figures 9 and 10, the rim 54 is again extended by the rim 55 as in Figures 7C and 7D„ However, instead of the bolts 45, the mountings are provided in the form of holes 60 spaced along the rim 55. A support member is in the form of a plain rod 61 with end cranked plates 62. Each plate 62 has a hole therethrough which is extended by captive nut 63 on the outside of the plate. A wing headed screw 66 is inserted through a selected hole 60 in the rim 55 and the hole in the plate 62 and screwed into the nut 63o Each elongate connector means is provided in the form of a wire rope 68 having, at one end, a safety hook 69 engaging over the rod 61. The free end of the wire rope 68 is inserted through an aperture in a bar 67. An external screw threaαeά sleeve 70 carrying a wing nut 70A is slid over the wire rope 68 and inserted into the aperture in the bar 67 until the wing nut 70A abuts the bar 67. The wire rope 68 is pulled tight by hand and a screw clamp 70B is applied to the wire rope 68 in abutment with the sleeve 70 and possibly welded to the wire rope. Thereafter the wing nut 70A is tightened. In an alternative arrangement, the sleeve 70 is replaced by a bolt with an eye or a transverse hole at one end. The wire rope can be inserted at its free end through the eye or hole and jammed and kinked in place by a first wing nut. Only the bolt extends through the aperture in the bar and the second wing nut on the bolt tightens the assembly.

Claims: C L A I M S 1. A security closure comprising a panel having inner and outer sides, holding means rigidly secured to or formed on the inner side of the panel, anchor means of a length not substantially less than the height or width of the panel, and at least two spaced apart elongate connector means interconnecting the holding means on the panel and each of the anchor means, each connector means being adapted at one end to be releasably engaged with said spaced holding means and being so connectable with the anchor means as to clamp an opening surround between the panel inner side and the anchor means with the anchor means extending generally parallel to the panel. 2o A security closure according to claim 1, wherein said panel has a shallow peripherally extending side wall having an inwardly turned rim. 3. A security closure according to claim 2, wherein said holding means comprise formations integral with the panel near the periphery thereof, but concealed by the side wall. 4. A security closure according to claim 3, wherein said holding means are secured to or formed on said side wall. 5. A security closure according to claim 1, 2, 3 or 4, wherein said holding means define a plurality of spaced holding locations and wherein said one end of said connector means is adapted to be releasably engaged with one of said spaced holding locations. 6. A security closure according claim 5, wherein said holding means include at least one bar extending across said inner side of the panel, the or each bar being provided with a plurality of spaced projections or recesses to define said plurality of spaced holding locations. 7. A security closure according to claim 6, when appendant on claim 2, wherein the or each bar is secured to said side wall and/or said side wall rim. 8. A security closure according to any one of claims 5 to 7, wherein said elongate connector means is provided with a head or hook releasably engagable with one of said spaced holding locations.

Inventors: WATT RONALD WILLIAM, WATT, RONALD, WILLIAM
Applicants: WATT RONALD W, WATT, RONALD, WILLIAM
Application year: 1988
Main classification: E06B9
IPC codes: E06B5, E06B9