GB2541900A

GB2541900A - A security system for a lock

Info

Publication number: GB2541900A
Application number: GB1515528.6A
Authority: GB
Inventors: Carpenter Stuart
Original assignee: INGENIOUS LOCKS & HARDWARE Ltd
Current assignee: INGENIOUS LOCKS & HARDWARE Ltd
Priority date: 2015-09-02
Filing date: 2015-09-02
Publication date: 2017-03-08
Also published as: GB201515528D0

Abstract

A lock assembly for a door or window comprising a first handle receiving member for positioning on a first side of the wing a second handle receiving member for positioning on a second side of the wing and a protective member 22 positioned on the first side of the wing with a first aperture 59 for receiving the end of a lock cylinder and a second aperture 50, a first holding member 24 securing the protective member to the second handle receiving member and a second holding member 26 securing the first handle receiving member to the second handle receiving member and passing through the second aperture on the protective member. Preferably the holding member is a screw like portion with an enlarged end that cannot pass through an aperture in the handle receiving portion. A third holding member 28 is preferably located at the other end of the handle receiving member.

Description

Title: A security system for a lock Description of Invention

The present invention relates to a security system for a lock. In particular, the invention relates to a lock for a door or a window.

It is known to provide a lock for a door or a window which is operable by a key between locked and unlocked states. In the locked state, the lock prevents the door or window being opened.

One such lock is known as a cylinder lock and, in use, it extends through one side of the door, e.g. its exterior side, to an opposing side of the door, e.g. its interior side. The cylinder lock may have first and second ends which include respective key openings for receiving a key. The ends of the cylinder lock are accessible from the respective sides of the door for a user to operate the lock. The lock is connected to a mechanism for opening the door. This may be a handle or an espagnolette lock that is actuated by the handle for locking/unlocking further locking members connected to the espagnolette lock. The cylinder lock therefore prevents rotation of the handle or movement of the espagnolette lock between locked and unlocked positions.

Another type of cylinder lock may have a first end that includes a key opening and a second end that includes a rotatable knob (also known as a thumb turn knob) which, when turned, unlocks the lock. During use, the knob would be positioned on the inside of the door to allow a user to unlock the lock without a key which may be important in the case of a fire, for example.

It is known to secure such a lock in order to inhibit an intruder from disabling the lock by, for example, damaging the lock, and thereby open the door or window without using a key. A known security system 2 for a lock 4 is shown in figure 1. The system 2 includes a pair of protective members 6, 8 having openings that receive respective ends of the lock 4. The protective members 6, 8 are held to one another with the lock 4 positioned inbetween them by a coupling member 10 in the form of a threaded fastener, i.e. a screw or bolt. The system 2 is fitted to a mechanism for opening the door and is supported thereby. Handle receiving members 9a, 9b are fastened to either side of the door and have openings through which the respective ends of the lock 4 extend. If an intruder attempts to break the lock 4, for example, by using a tool to snap the lock 4 in two, the protective members 6, 8 are held together by the coupling member and so resist any such applied force.

According to a first aspect of the invention we provide a security system for a lock for a door or a window having first and second opposing sides, the system including: a protective member for positioning near or adjacent the first side of the door or window and including an opening for receiving an end portion of the lock, a handle receiving member for positioning near or adjacent the second side of the door or window, wherein the handle receiving member includes a handle or a formation for receiving or supporting a handle; and a holding member for holding the protective member relative to the handle receiving member.

According to a second aspect of the invention we provide a method for fitting the security system according to the first aspect of the invention to a door or window including the steps of: providing a lock; positioning the protective member near or adjacent the first side of the door or window; placing an end portion of the lock in the opening of the protective member; positioning the handle receiving member near or adjacent the second side of the door or window; placing the holding member through an opening in the handle receiving member from the second side of the door or window; and operating the holding member so that it is received by a formation in the protective member and urges the handle receiving member and protective member towards one another whilst the second side of the door or window and the lock are positioned therebetween.

Further features of the first and second aspects of the invention are set out in the dependent claims thereto which are appended hereto.

Examples of the invention will now be described by way of example only with reference to the accompanying drawings, of which:-

Figure 1 is a perspective partially exploded view of a prior art security system;

Figure 2 is a perspective exploded view of a security system in accordance with an embodiment of a first aspect of the present invention;

Figure 3 is an exploded perspective view of the security system of figure 2 with a lock positioned therein;

Figure 4 is a cross-sectional side view of the security system of figure 2 fitted to a door;

Figure 5 is a perspective view of the security system of figure 2 with certain component parts not shown;

Figure 6 is a further perspective view of the security system of figure 2 with certain component parts not shown; and

Figure 7 is a further perspective view of the security system of figure 2 with certain component parts not shown and which shows the system from the opposite side to that shown in figure 6.

Referring to figures 2 to 7, an embodiment according to a first aspect of the present invention for use with a door will be described. It will be appreciated that embodiments of the invention as described below can be used with a window in a manner that would be familiar to the skilled person, including any necessary modifications for its use with a window. The terms door and window are used to refer to any member that can be used to cover or be placed in any fenestration of any type of structure.

With reference to the figures, security system 10 is for a lock 12 for a door 9 having first and second opposing sides 11a, 11b. Lock 12 is generally elongate and has first and second end portions 13a, 13b. It is generally oval shaped in cross-section and is known as a cylindrical lock in the art. Lock 12 includes a key opening at either end of the lock 12 for receiving a key to operate the lock 12. Lock 12 is connected to an espagnolette lock (not shown). Lock 12 in its locked state, prevents movement of the espagnolette lock whilst it permits such movement in its unlocked state. The first side 11a of the door 9 is that side of the door from which unauthorised access is to be prevented whilst the second side 11 b of the door 9 is that which is adjacent the space to be secured. For example, the first side 11a may be an exterior surface which faces away from the securable space and the second side 11 b may be an interior surface which faces towards the securable space when the door 9 is closed.

The security system 10 includes a cover member 16 for positioning adjacent the first side 11a of the door 9 and a handle receiving member 14 for positioning adjacent the second side 11b of the door 9. The handle receiving member 14 includes a handle 18 and the cover member 16 includes a handle 20.

The handle receiving member 14 and cover member 16 are held relative to one another by a cover holding member 26 and a further cover holding member 28. The holding members 26, 28 connect the handle receiving member 14 and cover member 16 to one another and extend therebetween. The holding members 26, 28 extend transversely from one side of the door 9 to the other side of the door 9. In this embodiment, the cover holding member 26 and the further cover holding member 28 are identical components. They are in the form of elongate screws made from steel. Other materials or types of holding member may be utilised with the invention, e.g. bolts. The cover holding member and further cover holding member 26, 28 each have respective first and second end portions 27a, 27b and 29a, 29b.

The handles 18, 20 have formations that receive respective end portions of an actuating rod (not shown) of the espagnolette lock which extends transversely across the door. Rotation of the actuating rod is caused by a user rotating either handle and actuates the espagnolette lock to open/close the door.

The security system 10 includes a protective member 22 having an opening 58 which receives end portion 13b of the lock 12 therein. Protective member 22 is for positioning adjacent the first side 11a of the door 9 and sits beneath the cover member 16 as will be described in more detail below. Protective member 22 is a single component piece formed from a metal by casting, for example, steel. In embodiments, it may be made from other materials or methods. A holding member 24 holds the protective member 22 relative to the handle receiving member 14 and connects them to each other.

The handle receiving member 14 is generally elongate about an axis. The handle receiving member 14 includes a main wall 15a having an exterior surface, on which the handle 18 is positioned, and an interior surface 15b which, in use, faces the door. The handle receiving member 14 includes a side wall 17 that extends away from a periphery of the main wall 15a. The main wall 15a has a formation that provides a rotatable connection with the handle 18. The handle receiving member 14 is made as a single component piece from pressed metal such as aluminium. Other materials may be used to form the handle receiving member, e.g. other metallic alloys or the like. The main wall 15a includes a keyhole shaped opening 15c positioned near a lower end of the main wall 15a through which end portion 13a of the lock extends in use. Opening 15c defines an access opening 15d that permits access to the key opening at end part 13a of the lock 12. The free end of the side wall 17 abuts the second side 11 b of the door 9 during use such that there is a space between the second side 11 b and the main wall 15a.

Cover member 16 has the same shape as the handle receiving member 14 and is formed in a similar way. The cover member 16 includes a main wall 19a, a side wall 21, and the handle 20 is rotatably connected to the main wall 19a. The free end of the side wall 21 abuts the first side 11a of the door 9. Main wall 19a includes an oval shaped opening 19c positioned near a lower end of the main wall 19a. It will be appreciated that opening 19c may have other shapes and/or dimensions. All that is required is that the key for operating lock 12 can extend therethrough to operate the lock 12.

In more detail, the handle receiving member 14 includes a first formation 32 and a second formation 36 positioned at axial ends of the handle receiving member 14. Formations 32, 36 include apertures which receive the first end portions 27a, 29a of the cover holding member 26 and the further cover holding member 28 respectively. The holding members 26, 28 have respective head portions that are larger than the apertures to inhibit movement of the head portions therethrough. The cover member 16 includes a first formation 34 and a second formation 38 positioned at axial ends thereof. The formations 34, 38 have openings that receive the second end portions 27b, 29b of the cover holding member 26 and the further cover holding member 28 respectively.

Handle receiving member 14 includes a further formation 70 formed in the same manner as first and second formations 32, 36. Formation 70 is positioned near first formation 32 and opening 17. Formation 70 is situated between first formation 32 and opening 17.

The respective first and second formations 32, 34 and 36, 38 are formed as inwardly extending projections on the main walls of the handle receiving member 14 and cover member 16. The formations 32, 34, 36, 38 are generally identical in that they each include a tubular portion, in the form of a boss, which receives the respective end portion of the cover holding member 26 / further cover holding member 28. The first and second formations 34, 38 of the cover member 16 have respective formations, in the form of threads, for co-operating with respective formations on the second end portions 27b, 28b of the cover holding member 26 and the further cover holding member 28. These formations co-operate with one another to provide a steadfast connection which prevents lateral movement of the cover holding member 26 and the further cover holding member 28 relative to the cover member 16. During use, the cover holding member and the further cover holding member hold the cover member 16 and the handle receiving member 14 together with the door 9 positioned therebetween.

The protective member 22 is generally oval shaped and includes a main wall 50 that has an exterior surface which, in use, faces away from the door 9 and an interior surface which faces towards the door 9. A side wall 54 is connected to a periphery of the main wall 50 and in use, the free end of the side wall 54 rests on the first side 11a of the door 9. The main wall 50 includes a raised portion 52 which defines an oval shaped opening 58 for receiving end portion 13b of the lock 12 as will be described below. The protective member 22 includes an access opening 59 for permitting access to a key opening at end part 13b of the lock 12. The protective member 22 includes an opening 62 which is axially spaced from the opening 58. Opening 62 receives the first formation 34 of the cover member 16 therethrough. The raised portion 52 is correspondingly shaped so as to fit within the opening 19c in cover member 16 and extend therepast.

Holding member 24 is identical to the cover holding members 26, 28. Holding member 24 has first and second end portions 66, 68. First end portion 66 is received by an aperture defined by formation 70 whilst the protective member 22 has a formation 72 which receives second end portion 68. Formation 72 extends away from the interior surface of the main wall 50 and includes a threaded formation for co-operating with a formation on the holding member 24 so as to provide a steadfast connection therebetween. The holding member 24 is connected to the protective member 22 and held against lateral movement relative thereto. Formations 70, 72 are generally tubular and are in the form of bosses through which the holding member 24 extends. Holding member 24 includes a head portion that is larger than the aperture of formation 70 so as to inhibit movement of the head portion therethrough. The respective formations 70, 72 that receive the first and second end portions 66, 68 of the holding member 24 are spaced apart an equal distance from their respective access openings 15d, 59. The holding member 24 thus substantially aligns the openings 15d, 59 when the holding member 24 holds the protective member 22 relative to the handle receiving member 16 during use.

The holding member 24 engages with the protective member at its second end portion 68 and is of sufficient length to space the protective member 22 apart from the handle receiving member 14 to receive a substantial portion of the lock 12 therebetween.

Assembly of the security system 10 in conjunction with the lock 12 for fitting to a door 9 will now be described. The protective member 22 is positioned near the first side 11 a of the door 9 and end portion 13b of the lock 12 is placed into the opening 58 of the protective member 22. The lock 12 is passed through an opening (not shown) provided in the door 9 from the first side 11a thereof such that the second end portion 13b of the lock 12 is positioned adjacent the second side 11b of the door 9. The handle receiving member 16 is then positioned near the second side 11 b of the door 9 and the holding member 24 is passed through the opening provided by formation 70 of the handle receiving member 16 from the second side of the door until it engages with the protective member 22. The holding member 24 is then operated so that it urges the handle receiving member 16 and the protective member 22 towards one another whilst the second side 11b of the door 9 the lock 12 are positioned therebetween. The user may then place the cover member 16 onto the first side 11a of the door 9 such that the portion 52 of the protecting member 22 extends through the opening 19c of the cover member 14. The cover holding member and further cover holding member 26, 28 are then passed through the openings provided by the formations 36, 32 of the cover member from the second side of the door until they engage with the first and second formations 34, 38 of the cover member. The cover holding members 26, 28 are then operated so as to urge the handle receiving member 14 and the cover member 16 towards one another whilst the protective member 22 and the door is positioned therebetween.

It will be seen that the present invention is advantageous in that only a single and protecting member 22 is required because the handle receiving member 16 is held to the protecting member 22 by a holding member 24. If a user were to attempt to interfere with the lock 12 by applying a force to the protecting member 22 that force would be transmitted to the handle receiving member 14 by the holding member 24. The handle receiving member 14 is held against the door 9 by the holding members 24, 26 and 28 such that any such applied force is transmitted to the door. Thus, not only is a component part removed from the security system, in comparison to known security systems a substantial transfer of the applied load to the door occurs. This provides for added security and the ability to withstand greater forces. The present security system is thus not only more economical to manufacture and produce it also provides for greater security in comparison to known locks.

It will be appreciated that other configurations of the protective member, handle receiving member and other components of the system may be utilised. All that is required is that the protective member 22 is held by the holding member 24 against movement relative to the handle receiving member 16. The holding member may have other shapes or configurations. Any type of threaded fastener would be suitable. The handle receiving member need not include the handle and may simply have a formation which receives or supports the handle. The cover member 14 may not include a handle at all and operation of the lock provides for opening of the door without a handle being needed. Similarly, the protective member 22 need not have an opening which is received by a projection on the cover member 14 and / or may be otherwise supported. In the embodiment described the holding members 26, 24 and 28 are identical but they need not be and they may be different to one or more of each other. All that is required is that they provide the ability to hold the respective components parts of the system together.

The embodiment described was in relation to a lock for an espagnolette lock. However, the invention may be used with other locking systems that are not of an espagnolette design.

The formations 32, 36, 34, 38, 70 may take on other forms or configurations. All that is required is that they provide an opening through which the respective holding members may extend and be received in such a way that a steadfast connection can be made. Although the present invention has been described with reference to a cylinder lock, it may be applied to other types of lock which have other shapes or configurations. In such embodiments, the protective member 22 and the handle receiving member and cover member may have differently shaped openings for receiving the respective portions of the lock.

When used in this specification and claims, the terms "comprises" and "comprising" and variations thereof mean that the specified features, steps or integers are included. The terms are not to be interpreted to exclude the presence of other features, steps or components.

The features disclosed in the foregoing description, or the following claims, or the accompanying drawings, expressed in their specific forms or in terms of a means for performing the disclosed function, or a method or process for attaining the disclosed result, as appropriate, may, separately, or in any combination of such features, be utilised for realising the invention in diverse forms thereof.

Claims

1. A security system for a lock for a door or a window having first and second opposing sides, the system including: a protective member for positioning near or adjacent the first side of the door or window and including an opening for receiving an end portion of the lock, a handle receiving member for positioning near or adjacent the second side of the door or window, wherein the handle receiving member includes a handle or a formation for receiving or supporting a handle; and a holding member for holding the protective member relative to the handle receiving member.

2. A security system according to claim 1, wherein the holding member includes a portion which extends between the handle receiving member and the protective member.

3. A security system according to claim 1 or 2, wherein the protective member and holding member have respective co-operating formations for providing a steadfast connection therebetween.

4. A security system according to claim 1, 2 or 3, wherein the handle receiving member and protective member include respective access openings for permitting access to a key opening of the lock which, in use, are substantially aligned when the holding member holds the protective member relative to the handle receiving member.

5. A security system according to any preceding claim, wherein the holding member has first and second end portions which are receivable by respective formations on the handle receiving member and the protective member.

6. A security system according to claim 5, when dependent on claim 4, wherein the respective formations for receiving the first and second end portions of the holding member are spaced apart an equal distance or substantially equal distance from their respective access openings.

7. A security system according to claim 5 or 6, wherein the formation on the handle receiving member for receiving a first end portion of the holding member includes an aperture and the first end portion includes a head portion which is larger than the aperture so as to inhibit movement of the head portion through the aperture.

8. A security system according to any one of claims 4 to 7, wherein the handle receiving member includes an opening through which, in use, an end portion of the lock extends, and said opening is positioned near or adjacent the formation for receiving the first end portion of the holding member.

9. A security system according to any preceding claim, wherein, in use, the holding member connects the protective member to the handle receiving member.

10. A security system according to claim 9 including the lock, wherein, in use, the holding member spaces the protective member apart from the handle receiving member to receive a substantial portion of the lock therebetween.

11. A security system according to any preceding claim, wherein the protective member and holding member have respective co-operating formations for providing a steadfast connection therebetween.

12. A security system according to claim 11, wherein the co-operating formation of the protective member includes a tubular portion, preferably a boss, for receiving an end portion of the holding member.

13. A security system according to any preceding claim including: a cover member for positioning near or adjacent the first side of the door or window; and a cover holding member for holding the cover member relative to the handle receiving member.

14. A security system according to claim 13, wherein the cover member includes a recess or opening for receiving a portion of the protective member.

15. A security system according to claim 13 or 14, wherein the cover member includes a handle or a formation for receiving or supporting a handle.

16. A security system according to any one of claims 13 to 15, wherein the handle receiving member includes a first formation for receiving a first end portion of the cover holding member and preferably the cover member includes a first formation for receiving a second end portion of the cover holding member.

17. A security system according to any one of claims 13 to 16, wherein the protective member includes an opening and the cover member includes a projection, which, in use, extends through the said opening.

18. A security system according to claim 17 when dependent on claim 16, wherein the projection is provided by the first formation of the cover member.

19. A security system according to claim 16, 17 or 18, wherein the first formation of the handle receiving member is positioned near or adjacent a formation for receiving an end portion of the holding member.

20. A security system according to any one of claims 13 to 19 including a further cover holding member for holding the cover member relative to the handle receiving member.

21. A security system according to claim 20 when directly or indirectly depending on claim 16, wherein the handle receiving member includes a second formation for receiving a first end portion of the further cover holding member and preferably the cover member includes a second formation for receiving a second end portion of the further cover holding member.

22. A security system according to any one of claims 16 to 21, wherein the first formation of the cover member and the second end portion of the holding member have respective co-operating formations for providing a steadfast connection therebetween.

23. A security system according to claim 21 or claim 22 when dependent on claim 21, wherein the second formation of the cover member and the second end portion of the further cover holding member have respective co-operative formations for providing a steadfast connection therebetween.

24. A security system according to any one of claims 16 to 23, wherein one or more or all of the first and second formations of the cover member / handle receiving member include a tubular portion, preferably a boss, for receiving respective end portions of the cover holding member / further cover holding member.

25. A security system according to any one of claims 16 to 24, wherein the holding member and the cover holding member / further cover holding member are substantially identical or identical parts, preferably threaded fasteners.

26. A security system according to any preceding claim, wherein the handle receiving member and / or the cover member include openings through which, in use, respective end portions of the lock extend.

27. A security system according to any preceding claim including the lock.

28. A door or window including a security system according to any one of claims 1 to 27

29. A kit of parts for assembling into a security system according to any one of claims 1 to 27.

30. A protective member for use with a security system according to any one of claims 1 to 27.

31. A handle receiving member and / or cover member for use with a security system according to any one of claims 1 to 27.

32. A method for fitting the security system according to any one of claims 1 to 27 to a door or window including the steps of: providing a lock; positioning the protective member near or adjacent the first side of the door or window; placing an end portion of the lock in the opening of the protective member; positioning the handle receiving member near or adjacent the second side of the door or window; and placing the holding member through an opening in the handle receiving member from the second side of the door or window; operating the holding member so that it is received by a formation in the protective member and urges the handle receiving member and protective member towards one another whilst the second side of the door or window and the lock are positioned therebetween.

33. A security system for a lock for a door or a window substantially as hereinbefore described with to and as shown in the accompanying drawings.

34. Any novel feature or novel combination of features described herein and/or in the accompanying drawings.