AU640046B2

AU640046B2 - Security device for swingable wings

Info

Publication number: AU640046B2
Application number: AU84598/91A
Authority: AU
Inventors: Barry Edmund Bradshaw; Douglas Brian Howie
Original assignee: DELVIC PTY Ltd
Current assignee: DELVIC PTY Ltd
Priority date: 1990-09-20
Filing date: 1991-09-19
Publication date: 1993-08-12
Anticipated expiration: 2011-09-19
Also published as: AU8459891A

Description

i ~I P/00/011 28/5/91 Regulation 3.2(2)

AUSTRALIA

Patents Act 1990 6 4 H I 5

S

ORIGINAL

COMPLETE SPECIFICATION STANDARD PATENT Application Number: Lodged: Invention Title: "SECURITY DEVICE FOR SWINGABLE WINGS" The following statement is a full description of this invention, including the best method of performing it known to us

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1 SEQUIRITY DEVICE FOR SWINGABLE WINGS This invention relates to security device for swingable wings and in particular, security device for doors, windows, lids or the like which are hinged for movement or otherwise pivotally or rotatably movable between a closed position and an open position with respect to a structure.

In every day life, there is invariably a need for security against theft and burglary to prevent the loss of important articles and valuable goods. Where the articles and goods are kept in buildings, say warehouses, factories, garages or houses, security measures would be provided to prevent any unauthorised entry therein through 1 0 the main accesses such as doors and windows.

Mostly, some kind of locking mechanism is provided, However, some locking mechanisms can be easily disabled and have been proved ineffective, whilst other locking mechanisms may have complex construction and are expensive to manufacture.

In this regard, various security devices have been proposed to improve the security for 1 5 such buildings against forced entries, for example, guards and screens to obstruct direct access to doors and windows.

It is an object of the present invention to provide an alternative or additional security device to improve security. It is an object of the present invention to provide a security device which can be simple in design and easy and inexpensive to manufacture.

According to one aspect of the present invention, there is provided a security device for swingable wings provided as closures for structures, comprising: a first member to be mounted on the inside of a wing adjacent an edge generally parallel to the plane of a frame for said wing, and a second member to be mounted opposingly with respect to said first member on a part of the frame, the two members being so configured and arranged that the wing is freely movable between a closed position thereby co-operating with the frame and an open position thereby displacing said edge away from said frame, and that when the wing in its closed position is forceably displaced in a direction generally perpendicular to the opening direction, the two members will co-operatively hinder the wing from moving freely in the opening direction.

It is contemplated that the two members would have engaging means which will enter into engagement when the wing is so forceably displaced. Further, the engaging means may also limit the displacement of the wing in the direction generally perpendicular to the opening direction.

The engaging means may comprise respective portions which overlap in a direction generally perpendicular to the plane of the wing in the closed position. Each overlapping portion includes a tongue projecting towards the other portion in a direction generally parallel to the plane of the wing.

The present invention, in one form, provides a security device for 1 0 swingable wings, wherein the wing is provided as a closure for a structure and mounted for swing movement relative to the structure between a closed position thereby cooperating with a frame on the structure and an open position thereby displacing an edge of the wing parallel to the frame away therefrom, said security device comprising: a first member to be mounted on the inside of the wing adjacent the edge and movable therewith, and a second member to be mounted opposingly with respect to said first member on a part of the frame, such that when in the closed position, respective portions of the two members opposingly overlap in a direction generally parallel to the opening direction, the overlapping portions each having a tongue being so configured and projecting generally towards the other portion that the wing is freely movable between the closed and open positions, and that when the wing is forceably displaced in a direction generally perpendicular to the opening direction, the overlapping portion of the two members will co-operatively hinder the wing from moving freely in the opening direction. The overlapping portions of the two members may preferably also limit the wing from displacing too far in the direction generally perpendicular to the opening direction.

In practice, the first member may conveniently be mounted adjacent a part of a locking mechanism on the wing. Further, the wing member may preferably have an elongate dimension and extend parallel to the edge of the wing. The second member may likewise have a corresponding length and be mounted adjacent another part 3 0 of said locking mechanism on the frame.

The security device may be adapted to be used in relation to doors, windows, lids or the like, which are hinged for movement or otherwise pivotally or rotatably movable, usually between a closed position and an open position with respect to 3 a structure. The engaging means of the two members can simply be made in the form of a catch.

The present invention in another form, provides a security catch for hinged doors, windows and the like, wherein the door or window is pivotally attached adjacent one edge for pivotal movement relative to a fixed structure about an axis parallel to said one edge, and when closed, the door or window is lockable adjacent an opposite edge to said fixed structure, said security catch comprising a movable member to be fixedly attached to the door or window adjacent said opposite edge and a stationary member to be fixedly 1 0 attached to the fixed structure, so that when the door or window is in a locked relation to the fixed structure, respective portions of the movable and stationary members overlap in a direction generally at right angles to the plane of the door or window, said overlapping portions each having a tongue projecting towards the other portion in a direction 1 5 generally parallel to the plane of t' door or window, said tongue: located and dimensioned so that as the door or window is freely pivoted between the open and closed positions, the tongues pass freely, and when the door or window is forceably displaced in a direction towards the hinge, the tongues overlap to prevent free pivotal movement of the door or window.

2 0 It is appreciated that the security device or catch is designed to be located on the inside of the structure. In the case where the door or window opens outwardly away from the structure, the movable member is located on the side facing the closing direction and in the case where the door or window opens inwardly into the structure, the movable member is located on the side facing the opening direction.

In another embodiment, the two members of the security device may be mounted on the same side adjacent opposite edges of respective wings of a double-wing arrangement, in which case both members are movable therewith.

By way of illustration, an embodiment of the present invention will be described in detail with reference to the accompanying drawings and the present 3 0 invention is not to be limited to such embodiment. All other equivalent variations and modifications to the features of the present invention would be deemed to fall within the scope of the present application.

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r -4 i i -i I~ PI-- 4 Figures 1A and 1B are perspective views showing a security device mounted on a wing and frame, in a closed position and an open position, respectively; Figures 2A and 2B are top plan views showing the workings of the security device when the wing is in the closed position and being forceably displaced, respectively.

Referring to Figures 1A and 1B, a security device comprising two members 22,26 is adapted to be used for a swingable door 15. The door 15 is provided as a closure for a structure 10 and can be suitably hinged or pivotally attached adjacent an inner edge to provide an outwardly opening movement relative to the structure 1 0 about an axis parallel to the inner edge.

The first member 22 is mounted on the inside of the door 15, that is the side facing the closing direction, and adjacent an opposite outer edge 14 of the door which is generally parallel to the plane of a frame 13 for the door The second member 26 is mounted opposingly with respect to the first 1 5 member 22 on a part of the frame 13.

The two members 22,26 have been so configured and arranged that the door is freely movable between a closed position as shown in Figure 1A thereby cooperating with the frame 13 and an open position as shown in Figure 1B thereby displacing the outer edge 14 away from the frame 13, and that when the door 15 in its closed position as shown in figures 2A and 2B, is forceably displaced, say by a crowbar or jemmy 11, from the outside, in a direction generally perpendicular to the opening direction, the two members 22,26 located on the inside will co-operatively hinder the door 15 from moving freely in the opening direction.

The two members 22,26 are designed with engaging means made in the form of a catch. Each engaging means comprises a portion 23,27 including a tongue 24,28.

Each portion 23,27 extends generally into a direction which is generally perpendicular to the plane of the door in its closed position so that when in the closed position, respective portions 23,27 overlap in the perpendicular direction generally.

Each tongue 24,28 projects towards the other overlapping portion generally into a direction which is generally parallel to the plane of the door.

In Figures 2A and 2B, when the door 15 is freely pivoted between the open and closed positions, a clearance 20 between the two members 22,26 would enable the tongues 24,28 to pass each other freely. However, when the door is forceably displaced towards the inner edge, the clearance 20 would disappear and the engaging means will enter into engagement. The tongues 24,28 thus overlap, restraining each other and preventing the door 15 from any further free pivotal movement in the opening direction.

Further, as shown in Figure 2B, the overlapping portions 23,27 of the engaging means can be used as stops to limit the forced displacement of the door 15 in the direction generally perpendicular to the opening direction.

Referring to Figures 1A and 1B, the door member 22 has an elongate 1 0 dimension and is mounted to extend parallel to the outer edge 14 of the door 15 adjacent a part of a locking mechanism 17 thereon, and the frame member 26 also has an elongate dimension of a length corresponding to the door member 22 and is mounted adjacent another part (not illustrated) of the locking mechanism on the frame.

It is appreciated that the elongate door member 22 of the security device 1 5 can be placed anywhere along the outer edge 14 of the door 15 and the elongate frame member 26 of the security device can then be placed oppositely thereto along the part of the frame 13. A number of security devices can be used together and located spacedly apart along the outer edge 14 of the door 15 and the part of the frame 13. Each security device can be appropriately dimensioned.

The members 22,26 of the security device can be easily and inexpensively made from metal extrusions such as aluminium and steel, or mouldings or extrusions of plastics. It is understood that the shape and configuration of the members 22,26 can be made to different designs to perform the same function, achieving the same result of the present invention.

The members 22,26 can be mounted on the door and frame by any suitable fixing means, for example, screws and adhesives.

Various applications of the present invention have been mentioned above.

However, the security device of the present invention does not only have particular applicability to security screens, doors and windows, but also generally to car bonnets 3 0 and boots, lockable chest lids and other swingable wings.

L--PIL"~I

6 Further, whilst the first member of the security device is generally movable with the wing and the second member is generally stationary on the frame or fixed structure, the present invention may also be adapted to be used on double doors wherein both members would be mounted on respective doors and movable therewith.

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Claims

1. A secui,, device for swingable wings provided as closures for structures, comprising: a first member to be mounted on the inside of a wing adjacent an edge generally parallel to the plane of a frame for said wing, and a second member to be mounted opposingly with respect to said first member on a part of the frame, the two members being so configured and arranged that the wing is freely movable between a closed position thereby co-operating with the frame and an open position thereby displacing said edge away from said frame, and that when the wing in its closed position is forceably displaced in a direction generally perpendicular to the opening direction, the two members will co-operatively hinder the wing from moving freely in the opening direction.

2. A security device according to claim 1, wherein the two members have engaging means which enter into engagement when the wing is so forceably displaced.

3. A security device according to claim 2, wherein the engaging means limits the displacement of the wing in the direction generally perpendicular to the opening direction.

4. A security device according to claim 2 or 3, wherein the engaging means comprise. espective portions which overlap in a direction generally perpendicular to the plane wing in the closed position, each overlapping portion including a tongue projecting tov Js the other portion in a direction generally parallel to the plane of the wing.

A security device for swingable wings, wherein the wing is provided as a closure for a structure and mounted for swing movement relative to the structure between a closed position thereby co-operating with a frame on the structure and an open position thereby displacing an edge of the wing parallel to the frame away therefrom, said security device comprising: 8 a first member to be mounted on the inside of the wing adjacent the edge and movable therewith, and a second member to be mounted opposingly with respect to said first member on a part of the frame, st~ch that when in the closed position, respective portions of the two members opposingly overlap in a direction generally parallel to the opening direction, the overlapping portions each having a tongue being so configured and projecting generally towards the other portion that the wing is freely movable between the closed and open positions, and that when the wing is forceably displaced in a direction generally perpendicular to the opening direction, the overlapping portion of the two members will co-operatively hinder the wing from moving freely in the opening direction.

6. A security device according to claim 5, wherein the overlapping portions of the two members limit the wing from displacing too far in the direction generally perpendicular to the opening direction.

7. A security device according to any one of the preceding claims, wherein the first member is mounted adjacent a part of a locking mechanism on the wing.

8. A security device according to claim 7, wherein the first member has an elongate dimension and extends parallel to the edge of the wing and the second member likewise has a corresponding length and is mounted adjacent another part of said locking mechanism on the frame.

9. A security catch for hinged doors, windows and the like, wherein the door or window is pivotally attached adjacent one edge for pivotal movement relative to a fixed structure about an axis parallel to said one edge, and when closed, the door or window is lockable adjacent an opposite edge to said fixed structure, said security catch comprising a movable member to be fixedly attached to the door or window adjacent said opposite edge and a stationary member to be fixedly attached to the fixed structure, so that when the door or window is in a locked relation to the fixed structure, respective portions of the movable and stationary members overlap in a direction generally at right angles to the plane of the door or window, said overlapping _II_ _i portions each having a tongue projecting towards the other portion in a direction generally p fallel to the plane of the door or window, said tongues being located and dimensioned so that as the door or window is freely pivoted between the open and closed positions, the tongues pass freely, and when the door or window is forceably displaced in a direction towards the hinge, the tongues overlap to prevent free pivotal movement of the door or window.

A security device according to any one of the preceding claims, wherein the two members are mounted on the same side adjacent opposite edges of respective wings of a double-wing arrangement, in which case both members are movable therewith.

11. A security device for swingable wings substantially as hereinbefore described with reference to the accompanying drawings. DATED this 17th day of September, 1991. DELVIC PTY. LIMITED WATERMARK PATENT AND TRADE MARK ATTORNEYS, SUITE 18, RUSSELL CENTRE, 159 ADELAIDE TERRACE, EAST PERTH, 6004, WESTERN AUSTRALIA, AUSTRALIA. L ABSTRACT A security catch for hinged doors, windows and the like, wherein the door or window is pivotally attached adjacent one edge for pivotal movement relative to a fixed structure about an axis parallel to said one edge, and when closed, the door or window is lockable adjacent an opposite edge to said fixed structure, said security catch comprising a movable member to be fixedly attached to the door or window adjacent said opposite edge and a stationary member to be fixedly attached to the fixed structure, so that when the door or window is in a locked relation to the fixed structure, respective portions of the movable and stationary members overlap in a direction generally at right angles to the plane of the door or window, said overlapping portions each having a tongue projecting towards the other portion in a direction generally parallel to the plane of the door or window, said tongues being located and dimensioned so that as the rdoor or window is freely pivoted between the open and closed positions, the tongues pass freely, and when the door or window is forceably displaced in a direction towards the hinge, the tongues overlap to prevent free pivotal movement of the door or window.