AU2009248467A1 - Locking device - Google Patents

Description

GRIFFITH HACK PATENTS, TRADE MARKS, IP LAW SPECIFICATION OF PATENT APPLICATION COUNTRY AUSTRALIA TYPE Patent TITLE LOCKING DEVICE APPLICANT(S) T9.net.au Pty Ltd AUSTRALIA Patents Act 1990 COMPLETE SPECIFICATION Standard Patent Applicant(s): T9.net.au Pty Ltd Invention Title: LOCKING DEVICE The following statement is a full description of this invention, including the best method for performing it known to me/us: - 2 LOCKING DEVICE 5 Field The present disclosure relates to a locking device, and especially, but not exclusively, to a locking device for locking windows of a canopy of a utility vehicle (also known as a pick-up truck) or other container 10 associated with a vehicle. Background Utility vehicles may be provided with open trays, or beds, towards a rear of the vehicle. Such trays are 15 useful for transportation of a wide range of cargos, including tradesman's equipment and supplies. Such vehicles may be further provided with lockable canopies (also sometimes referred to as truck toppers) to protect the cargo. Canopies may be provided as aftermarket 20 additions to the vehicle. Some canopies have outwardly opening lockable windows which can be opened to allow access to the vehicle tray contents. One known type of canopy has an outwardly opening lockable window on each side of the canopy which can be 25 opened about a horizontal axis provided by hinges which attach the window to an upper part of a side wall of the canopy, and an additional outwardly opening lockable window at the rear. Each window is provided with two horizontally spaced apart key-operable locks. The locks 30 are set into the corresponding window, and can be operated to lock the window by locking a latch member provided on the interior side of the window in a position such that a wall part of the canopy obstructs outward movement of the latch member, preventing opening of the window. The locks 35 can be operated to unlock the window by allowing movement of the latch member, by means of a handle provided on the exterior side of the window, into a position in which the 2142301_1 (GHMatters) 11/1209 - 3 wall part of the canopy does not obstruct outward movement of the latch member, so that opening of the window is not prevented. The locks are typically provided with barrel type locking mechanisms operable from the exterior side of 5 the window by a key. The latch member is typically an elongate member which can be rotated between the obstructed and unobstructed positions. The inventor has discerned that there is a need for an improved or alternative locking device suitable for 10 locking canopy windows. Summary According to a first aspect of the present invention, there is provided a locking device for allowing 15 a first enclosure element to be locked relative to a second enclosure element, the locking device comprising: a lock body; a latch member moveable, relative to the lock body, between a first position, corresponding to a latched 20 configuration of the locking device, and a second position, corresponding to an unlatched configuration of the locking device; a manually operable handle, rotatable relative to the lock body, for operating the latch member between the 25 first position and the second position; a locking member moveable between a first position in which it prevents operation of the latch member by the handle by locking the handle against rotation relative to the lock body, and a second position 30 in which it does not prevent operation of the latch member by the handle; a first, manually operable, locking member controller, to move the locking member between the first and second positions; and 35 a second locking member controller, which can be electrically actuated by the security system of a vehicle, to move the locking member between the first and second 2142301_1 (GHMatters) 11112/09 - 4 positions. Preferably the first locking member controller comprises a locking member control portion moveable between a first position in which it operatively couples 5 to the locking member, and a second position in which it does not operatively couple to the locking member. Preferably the locking member control portion is biased to said second position thereof. Preferably the first locking member controller is 10 provided with an associated key to allow operation thereof. Preferably the first locking member controller is operable to move the locking member between the first and second positions only when said key is used. 15 Preferably the locking member control portion is moveable to said first position thereof only when said key is used. Preferably the first locking member controller comprises a rotatable lock barrel. 20 Preferably the rotatable lock barrel comprises at least one locking element which extends radially from the lock barrel a greater distance in the absence of a key of the lock barrel than when the key of the lock barrel is inserted into the lock barrel. 25 Preferably the locking member control portion is provided as an integral part of the lock barrel. Preferably the rotatable lock barrel is provided within handle. Preferably the lock barrel is provided in a 30 portion of the handle which provides at least one recessed region into which said at least one locking element of the rotatable lock barrel extends in the absence of a key of the lock barrel so that the rotation of the lock barrel relative to the handle is restricted by the edges of the 35 recessed region in the absence of said key. Preferably said portion of the handle is configured to allow rotation of the lock barrel relative 2142301_1 (GHMatters) 11112/09 - 5 to the handle when the key of the lock barrel is inserted into the lock barrel. Preferably said portion of the handle is configured to allow axial movement of the lock barrel 5 relative to the handle when the key of the lock barrel is inserted into the lock barrel. (This may correspond to the one or more locking elements being retracted). Preferably said locking device is configured to prevent axial movement of the lock barrel relative to the 10 handle when the key of the lock barrel is absent. This may be achieved by providing one or more abutment portions which obstruct passage of the one or more locking elements in the absence of the key, but which allow passage of the one or more locking elements lock barrel when the key of 15 the lock barrel is inserted into the lock barrel. A spacer having one or more abutment arms which extend into one or more corresponding recesses of the handle portion may be used to prevent axial movement of the lock barrel relative to the handle when the key of the lock barrel is 20 absent. In an embodiment said axial movement of the lock barrel from its normal position corresponds to movement of the locking member control portion from its second position, in which it does not operatively couple to the 25 locking member, to said first position in which it operatively couples to the locking member. In an embodiment the locking member control portion comprises a locking member engagement part, positioned on an end of the locking barrel and engageable 30 with a complementary part of the locking member, so that rotation of the locking barrel moves the locking member between the first and second positions thereof. The locking member engagement part may comprise a lug positioned eccentrically on an end of the locking barrel. 35 The complementary part of the locking member may be a recess which accommodates said lug. Preferably, movement of the locking member 2142301_1 (GHMaiters) 11/12109 -6 control portion between its first and second positions is in a direction parallel to the axis of rotation of rotatable lock barrel. Preferably, movement of the locking member 5 control portion between its first and second positions is along an axis. Preferably, the axis of movement of the locking member control portion is coaxial with axis of rotation of rotatable lock barrel. 10 Preferably, the latch member is rotatable relative to the lock body, about an axis of rotation, between said first and second positions thereof. Preferably the axis of rotation of the latch member is parallel to the axis of movement of the locking 15 member control portion between its first and second positions. Preferably the axis of rotation of the latch member is coaxial with the axis of movement of the locking member control portion between its first and second 20 positions. Preferably the axis of rotation of the latch member is parallel to the axis of rotation of the rotatable lock barrel. Preferably the axis of rotation of the latch 25 member is coaxial with the axis of rotation of the rotatable lock barrel. Preferably the handle is rotatable about an axis substantially perpendicular to said first enclosure element. 30 Preferably the latch member is rotatable about an axis substantially perpendicular to said first enclosure element. Preferably the handle and the latch member are rotatable about a common axis. 35 Preferably the second locking member controller comprises an electric motor. Preferably the second locking member controller 2142301_1 (GHMatters) 11/12/09 comprises a drive shaft connected at one end thereof to the motor and coupled at its second end to the locking member. Preferably the drive shaft is rotatable, having 5 an axis of rotation substantially coaxial with the axis of rotation of the locking barrel. Preferably the motor is housed within a motor casing. Preferably the motor casing is connected to the 10 handle so that it can be rotated by the handle. Preferably the latch member is mounted to the motor casing. Preferably the latch member is rotatable as a unit with the motor casing. 15 Preferably axis of rotation of the motor casing is substantially coaxial with the axis of rotation of the handle. Preferably axis of rotation of the motor casing is substantially coaxial with the axis of rotation of the 20 locking barrel. Preferably the motor casing is rotatably mounted to the lock body. Preferably the lock body is provided with an attachment portion for attaching to the moveable closure 25 element. Preferably part of the attachment portion is configured to extend into an aperture extending through the moveable closure element. Preferably the lock body comprises an interior 30 attachment portion for attachment to an interior side of the moveable closure element. Preferably the lock body comprises an exterior attachment portion for attachment to an exterior side of the moveable closure element. 35 According to a second aspect of the present invention, there is provided a locking device for allowing a first, moveable, enclosure element of an enclosure to be 2142301_1 (GHMaliers) 11/12109 -8 locked relative to a second enclosure element of an enclosure which is substantially fixed relative to the enclosure, the locking device being mountable to a substantially planar, sheet-like, first enclosure element 5 by mounting through an aperture provided therein, the locking device having a first end for mounting on an exterior side of the first enclosure element and a second end for mounting on an exterior side of the first enclosure element, the locking device comprising: 10 a lock body comprising an attachment portion for attachment to the first enclosure element so that the attachment portion is securely fixed relative to the first enclosure element, at or adjacent the aperture; an extension portion, provided at a middle region 15 of the locking device which is intermediate the first and second ends thereof, for extending through the aperture of the first enclosure element; a latch member, provided closer to the second end than is the extension portion, the latch member being 20 moveable relative to the lock body between a first position, corresponding to a latched configuration of the locking device, and a second position corresponding to an unlatched configuration of the locking device; a manually operable handle, provided closer to 25 the first end than is the extension portion, rotatable relative to the lock body to operate the latch member between the first position and the second position; a locking system configurable to a first mode, in which the handle cannot operate the latch member and a 30 second mode, in which the handle can operate the latch member; and a powered actuator, provided closer to the second end than is the extension portion, operatively connected to the locking system to selectively configure the locking 35 system between the first and second modes. Preferably the powered actuator is suitable for connection to, and operation by, an automatic locking 2142301_1 (GHMatters) 11/12109 -9 system of a vehicle. Preferably the powered actuator comprises a motor with a rotor which has an axis substantially coaxial with the extension portion axis. 5 Preferably the portion has an extension portion axis which in use is substantially perpendicular to the region of the first enclosure element adjacent the aperture. Preferably the manually operable handle is 10 rotatable relative to the lock body about an axis of rotation which is substantially coaxial with the extension portion axis. Preferably the locking device further comprises a manual lock operatively connected to the locking system to 15 selectively configure the locking system between the first and second modes, the manual lock being operable from a part of the device which is closer to the first end than is the extension portion. Preferably the latch member is rotatable between 20 the first and second positions thereof, about an axis substantially coaxial with the extension portion axis. Preferably the manually operable lock comprises a lock barrel, rotatable about an axis substantially coaxial with the extension portion axis. 25 The locking system may comprise a locking member moveable between a first position in which it prevents operation of the latch member by the handle by locking the handle against rotation relative to the lock body, and a second position in which it does not prevent operation of 30 the latch member by the handle. The first and second positions of the locking member may correspond, respectively, to the first and second modes of the locking system. The powered actuator may comprise a locking 35 member controller, which can be electrically actuated by the security system of.a vehicle, to move the locking member between the first and second positions. 2142301_1 (GHMatters) 11/12/09 - 10 The security system may be a central locking system of a vehicle. The security system may include additional functionality, such as an alarm or immobilisation system, but is not limited to systems 5 including such additional functionality. It will be appreciated that parts provided closer to the first end than is the extension portion will, in use, be provided on an exterior side of the first enclosure element, and that parts provided closer to the 10 second end than is the extension portion will, in use, be provided on an interior side of the first enclosure element. In a preferred embodiment the locking device is for use with a first enclosure element which is a window 15 of a utility vehicle canopy. According to a third aspect of the present invention, there is provided a canopy for a utility vehicle, the canopy having at least one window provided with a locking device in accordance with at least one of 20 the first and second aspects. According to a fourth aspect of the present invention there is provided a utility vehicle with at least one window provided with a locking device in accordance with at least one of the first and second 25 aspects. According to a fifth aspect of the present invention there is provided a method of locking and unlocking a rotationally opening window or panel which forms part of an enclosure, comprising using a locking 30 device in accordance with at least one of the first and second aspects which is mounted in an aperture provided in said window or panel. In accordance with an embodiment of the fifth aspect the method is a method of locking a window which is 35 a window of a utility vehicle. In accordance with an embodiment of the fifth aspect the window is a window of a canopy of a utility 2142301_1 (GHMatters) 11/12)09 - 11 vehicle. According to a sixth aspect of the present invention, there is provided a locking device for allowing a first enclosure element to be locked relative to a 5 second enclosure element the locking device comprising: a latch member; a handle for operating the latch member; a control system connected to the handle and to the latch member, the control system being configurable to 10 a first mode, in which the handle can operate the latch member and a second mode, in which the handle cannot operate the latch member; a manual lock operatively connected to the control system to selectively configure the control system 15 between the first and second modes; and a powered actuator, operatively connected to the control system to selectively configure the control system between the first and second modes. Preferably the powered actuator is operable by an 20 electrical locking system of a vehicle. Preferably the locking device in accordance with the sixth aspect further comprises one or more features set out above in relation to the first and/or second aspects. 25 According to a seventh aspect of the present invention, there is provided a locking device for use with a window of an enclosure canopy of a vehicle, the vehicle having a security system, the locking device allowing a first enclosure element being a window of the canopy to be 30 locked relative to a second enclosure element of the canopy, the locking device comprising a controller, mountable on the first enclosure element, which can be electrically actuated by the security system of the vehicle to release the locking device to, in turn, unlock 35 the first enclosure element relative to the second enclosure element. Preferably the locking device is mountable to a 2142301_1 (GHMallers) 11/12/09 - 12 substantially planar, sheet-like, first enclosure element by mounting through an aperture provided therein, the locking device having a first end for mounting on an exterior side of the first enclosure element and a second 5 end for mounting on an exterior side of the first enclosure element. Preferably the locking device comprises: a lock body comprising an attachment portion for attachment to the first enclosure element so that the 10 attachment portion is securely fixed relative to the first enclosure element, at or adjacent the aperture; and an extension portion, provided at a middle region of the locking device which is intermediate the first and second ends thereof, for extending through the aperture of 15 the first enclosure element. Preferably the locking device comprises a latch member, provided closer to the second end than is the extension portion, the latch member being moveable relative to the lock body between a first position, 20 corresponding to a latched configuration of the locking device, and a second position corresponding to an unlatched configuration of the locking device. Preferably the locking device comprises a manually operable handle, provided closer to the first end 25 than is the extension portion, rotatable relative to the lock body to operate the latch member between the first position and the second position. Preferably the locking device comprises a locking system configurable to a first mode, in which the handle 30 cannot operate the latch member and a second mode, in which the handle can operate the latch member. Preferably the controller comprises a powered actuator, provided closer to the second end than is the extension portion, operatively connected to the locking 35 system to selectively configure the locking system between the first and second modes. According to a further aspect of the present 2142301_1 (GHMatters) 11/12109 - 13 invention, there is provided a canopy for a utility vehicle, the canopy having at least one window provided with a locking device in accordance with the sixth and/or seventh aspects. 5 According to a further aspect of the present invention there is provided a utility vehicle with at least one window provided with a locking device in accordance with the sixth and/or seventh aspects. According to a further aspect of the present 10 invention there is provided a method of locking and unlocking a rotationally opening window or panel which forms part of an enclosure, comprising using a locking device in accordance with the sixth and/or seventh aspects which is mounted on a moveable window or panel. 15 In such a method the locking device may be mounted in an aperture provided in the moveable window or panel. It will be appreciated that features described above in relation to a particular aspect may be 20 incorporated in one or more other aspects. Brief Description of the Drawings Embodiments will now be described, by way of example only, with reference to the accompanying drawings, 25 in which: Fig. la is an isometric view of an embodiment of a locking device, assembled for use; Fig. lb is a side elevation of the locking device of Fig. la; 30 Fig. 1c is an axial view of the locking device of Fig.s la and 1b; Fig. 2 is a cross sectional view of the locking device, on A-A of Fig. 1c; Fig. 3a is a schematic simplified exploded cross 35 sectional corresponding generally to the locking device of Fig.s 1 and 2; Fig. 3b is an exploded cross sectional 2142301_1 (GHMatters) 11/12109 - 14 corresponding generally to Fig. 3a, but showing the elements in more detail; Fig. 4 is an exploded view of the locking device of Fig.s 1 to 3 showing most of the elements of the device 5 in isometric view; Fig.s 5a to 5e are views of a handle part of the device of Fig.s 1, 2 and 4; Fig.s 6a to 6e are views of a manual lock controller of the device of Fig.s 1, 2 and 4; 10 Fig.s 7a to 7e are views of a support part of the device of Fig.s 1, 2 and 4, which can move as a unit with the handle part and which supports the manual lock controller; Fig.s 8a to 8c are views of a locking member of 15 the device of Fig.s 1, 2 and 4; Fig.s 9a to 9d are views of a rotatable drive element of the device of Fig.s 1, 2 and 4, which can be driven by a motor of a powered lock controller to move the locking member; 20 Fig.s 10a to lOg are views of a connection element of the device of Fig.s 1, 2 and 4, which can move as a unit with the handle part, and which houses the locking member and part of the rotatable drive element; Fig.s 11a to 11g are views of a first lock body 25 part of the device of Fig.s 1, 2 and 4, which can be selectively engaged by the locking member; Fig.s 12a to 12c are views of a second lock body part of the device of Fig.s 1, 2 and 4, which in use is engaged by the first lock body part; 30 Fig.s 13a to 13c are views of a first end part of a motor case of the device of Fig.s 1, 2 and 4, which, in use, is connected to the connection element of Fig. 10; Fig.s 14a to 14d are views of a central part of a motor case of the device of Fig.s 1, 2 and 4, which, in 35 use, is connected to the first end of part of the motor case; Fig.s 15a and 15b are views of a motor of the 2142301_1 (GHMatters) 11112109 - 15 device of Fig.s 1, 2 and 4, which, in use, is retained within the motor case; Fig.s 16a to 16c are views of a latch member of the device of Fig.s 1, 2 and 4, which, in use, is 5 connected about the outside of the central part of the motor case illustrated in Fig.s 14a to 14d; and Fig.s 17a to 17c are views of a second end part of a motor case of the device of Fig.s 1, 2 and 4, which in use is attached to the central part of a motor case, 10 illustrated in Fig.s 14a to 14d. Detailed Description of Preferred Embodiments With reference to the drawings, an embodiment, 15 generally designated by the reference numeral 1, of a locking device will be described. The locking device 1 may be attached to a moveable panel, and in particular a hinged, outwardly opening moveable panel (designated 157 in Fig.s lb and 3b) such as a window of a utility vehicle 20 canopy, by being mounted in an aperture of the panel, as will be described hereafter. The locking device 1 comprises a manually operable handle part which, in this embodiment, is in the form of a turn handle 10. The turn handle 10 can be used 25 to move a latch member, which in this embodiment is in the form of a holding latch 240, between a first position which corresponds to the moveable panel 157 being latched closed and a second position which corresponds to the moveable panel 157 being un-latched, or readily openable. 30 The locking device 1 further comprises a lock body. In this embodiment the lock body is provided by a first lock body part, which in this embodiment is in the form of a panel holding cup 130 mounted to a first (external) side of the panel 157, and a second lock body 35 part which in this embodiment is in the form of a spacing washer 160, mounted to a second (internal) side 158 of the panel 157. The lock body thus effectively extends through 2142301.1 (GHMatters) 11/12109 - 16 an aperture 158 in the window or panel to which the locking device is mounted. The locking device 1 further comprises a locking member which, in this embodiment, is in the form of a locking pin 80. The locking pin 80 can be 5 positioned in a position corresponding to an unlocked configuration of the locking device 1, in which the turn handle 10 is rotatable relative to the lock body (130, 160) allowing operation of the holding latch 240 between the first and second positions. The locking pin 80 can be 10 positioned in a position corresponding to a locked configuration of the locking device 1, in which the turn handle 10 is rotationally locked relative to the lock body (130, 160) preventing operation, by the turn handle, of the holding latch 240 between the first and second 15 positions. The locking device 1 further comprises a manual lock controller which in this embodiment is in the form of a barrel lock 40 associated with the turn handle 10. The barrel lock 40 can be operated by a key 41 (see Fig. 6a). 20 When the correct key is inserted in the barrel lock, the barrel can rotate and can be moved axially to couple to the locking member 80, and thus can be used to move the locking pin 80 between positions corresponding to locked and unlocked configurations of the locking device 1. In 25 addition to locking or unlocking of the turn handle 10 using the manual lock controller, the handle can be locked or unlocked by a remotely operated and/or automatic powered lock controller. In this embodiment the powered lock controller is operable by the vehicle's security or 30 central locking system, and comprises a motor 210 which can be operated to move the locking member via a rotatable drive element which, in this embodiment, is in the form of a shaft drive 90. The motor 210 can be wired into the electrical system of a vehicle, and can be operated by the 35 vehicle's security system, such as, for example, a remote central locking system. It will be appreciated that (as is the case in some known barrel lock arrangements used in 2142301_1 (GHMatlers) 11/12/09 - 17 other applications) the barrel lock 40 cannot rotate when the correct key is not inserted. In order to avoid mechanical resistance from the barrel lock affecting the ability of the motor 210 to move the locking pin 80, the 5 device is configured so that the barrel lock is biased away from the locking pin 80, in this embodiment by a helical spring 59, and is thus effectively decoupled from the locking pin when the barrel lock is not being actively operated to lock or unlock the device. 10 As will be apparent from the drawings, the holding latch 240 is mounted on a housing of the motor 210. In this embodiment the housing comprises a first end part of a motor case which, in this embodiment, is in the form of a motor case face plate 170, a generally 15 cylindrical central part 190 of the motor housing, and a second-end part of the motor housing which, in this embodiment, is in the form of a motor case end cap 260. The housing (motor case face plate 170, central part 190 and motor case end cap 260) can rotate, as a unit, 20 relative to the lock body, with the turn handle 10, thus allowing a compact arrangement in which the motor 210 is effectively housed in a mechanically useful part of the device. The housing is connected to the handle by: a support part which, in this embodiment, is in the form of 25 a dividing spacer 60 (which abuts the turn handle 10 and supports the helical spring 59), and; a connection element which, in this embodiment, is in the form of a connector shaft 100 which extends from the dividing spacer 60, through the lock body (and, in use, the aperture 158). 30 The connector shaft 100 also supports the locking pin 80 as will be described in more detail hereafter. Thus the locking device 1 provides a turn handle 10 which can conveniently be used to latch or unlatch a panel, such as a window of a utility vehicle canopy, and 35 can be operated between locked and unlocked configurations either manually (by use of a key) from the outside of a vehicle, or automatically, such as by use of the vehicle's 2142301_1 (GHMatters) 11/12/09 - 18 remote controlled locking system. Describing, now, the illustrated embodiment in more detail, the locking device may be regarded as having a first end 2 (uppermost in Fig.s la, lb, 2, 3a, 3b and 4) 5 which in use will be external to the panel or window, a second end 4 (lowermost in the drawings referred to above) which will, in use, be internal, and a middle region 3 which will, in use be closest to the window 157. The turn handle 10 is provided at the first end 2 10 of the locking device 1. With particular reference to Fig.s 5a to Sd, the turn handle 10 comprises a generally cylindrical main body part 12 from which first and second handle parts 13, 14 project radially outwardly. The main body part 12 provide a generally cylindrical internal 15 through bore 16, in which, in use, the barrel lock 40 and helical spring 59 are located. The first (uppermost as illustrated) end of the bore 16 is provided with a lip 18, which retains the barrel lock 40 and prevents the barrel lock 40 being pushed out of the bore 16 by the spring 20 helical spring 59. The bore 16 is provided with axially extending grooves or recesses 19, 20 adapted to accommodate locking parts (or wafers, which act as locking elements, as will be described hereafter) of the barrel lock. Turn handle 10 is also provided with small diameter 25 blind bores 21, 22 which are open at the second axial end of the turn handle, and which are adapted to receive small fasteners, such as screws 128, 129 (see Fig. 3b) which attach the dividing spacer 60 and connector shaft 100 to the turn handle. Suitably angularly spaced apart indicia 30 23, 24, such as the words 'lock' and 'unlock' may be provided at or adjacent the lip 18 to facilitate operation. The turn handle 10, and other components, may be made from any suitable material (for example a metal such as aluminium alloy, or carbon fibre composite) but 35 glass filled nylon is currently preferred for most of the components. By way of example, in an embodiment the diameter of the main body part 12 is about 26mm 2142301_1 (GHMatters) 11/12109 - 19 (approximately 1 inch). The barrel lock 40 comprises a cylindrical metal barrel body 42 having an opening 43 in a first end face 44 for receipt of a key 41, and having a plurality of locking 5 parts which in this embodiment are in the form of wafer tumblers 46 (see, eg, Fig. 6e). A second end face 47 is provided by a boss 48, which is slightly smaller in diameter than the barrel body 42, so that a step or shoulder 49 is provided. Projecting from the second end 10 face 47 is a circular cross section lug 50, which is adapted to engage the locking pin 80. The boss 48 is adapted to fit snugly within an end coil of helical spring 59, so that an end of the helical spring engages on the shoulder 49. The barrel lock 40 and most of the helical 15 spring 59 are, in use, located in the bore 16, even though this is omitted in many of the drawings. The wafer tumblers 46 are adapted to project radially beyond the outer surface of the barrel body 42, and to be retained in the axially extending grooves or recesses 19, 20 of the 20 turn handle 10, when the key 41 is not inserted. When the key is inserted the wafer tumblers 46 retract, allowing the barrel lock to rotate within the bore 16. When the wafer tumblers 46 are retracted, the barrel body 42 is also able to move axially within the bore 16. The barrel 25 body is biased towards the first end of the turn handle 10 by the helical spring 59, so unless the key is inserted and the barrel body pushed further into the turn handle 10 the first end face 44 of the barrel lock 40 will be adjacent the lip 18 of the turn handle. 30 The dividing spacer 60 comprises an annular plate 62 which in use is attached to the second end of the turn handle 10. Projecting in the first-end direction from the annular plate are two lock engageing members 63, 64 which are accommodated in the axially extending grooves or 35 recesses 19, 20 of bore 16, and which can obstruct wafer tumblers 46, and thereby prevent axial movement of the lock barrel 40 (in the second end direction) when the key 2142301_1 (GHMatters) 11112/09 - 20 is not inserted in the lock barrel. Also projecting in the first-end direction from the annular plate 62 is a part circular projection 65 which fits inside and retains a second-end coil of helical spring 59. The annular plate 5 62 is provided with a main central aperture 66, through which circular cross section lug 50 of the barrel lock 40 can project. In this embodiment the main central aperture has a non-circular shape, and this non-circular shape and the provision of part-circular projection 65 (which may be 10 regarded as occluding part of the aperture and providing extra wall thickness to the occluded region) restrict the angular movement of the circular cross section lug 50 of the barrel lock 40 when it projects through the aperture to engage the locking pin, thus facilitating controlled 15 operation of the locking pin 80 by a user utilising the manual lock. Further provided in the annular plate 62 are two small apertures 67, 68 to allow screws 128, 129 to pass therethrough. Projecting in the second-end direction from the annular plate are two opposed projections 69, 70 20 which have part cylindrical outer faces 69a, 70a, and which allow the dividing spacer 60 to be accurately positioned relative to the connector shaft 100. With particular reference to Fig.s 8a, 8b and 8c, the locking pin 80 comprises a generally cuboid block of 25 material (for example, metal or glass filed nylon could be used). The block has a first end face 81 (facing towards the first end of the locking device 1 and generally perpendicular to the axis of the locking device) and a second end face 82 opposite to the first end face. Each 30 of the first- and second-end faces 81, 82, is provided with a recess 83, 84 respectively. Each recess 83, 84 is adapted to receive a circular cross section lug, being circular cross section lug 50 of the barrel lock 40,or circular cross section lug 93 of the shaft drive 90, which 35 will be described hereafter. It will be appreciated that when a lug (for example lug 50) is in a corresponding recess (for example recess 83) rotation of the barrel lock 2142301_1 (GHMatters) 11/12/09 - 21 40 or the shaft drive 90, on which the lug is provided will result in a corresponding linear movement of the locking pin 80. This is the mechanism used to move the locking pin from a position in which it locks the handle 5 10 to a position in which is does not lock the handle 10. As described above, the locking pin 80 can be moved by the barrel lock 40. Alternatively the locking pin 80 can be moved by the shaft drive 90 which can be driven by the motor 210 in response to a signal from, for 10 example, the vehicle's security system. The shaft drive 90 comprises an elongate, circular cross section, shaft 91, a first end of which is provided with a thick disc 92 upon which a circular cross section lug 93 is eccentrically provided. A second end of the shaft 91 is 15 adapted to connect to an output shaft of the motor 210, and in this embodiment comprises a second end shaft portion having an open bore 94 therein which is generally semicircular in transverse cross section. The open bore 94 is adapted to receive a complementary shaped output 20 shaft of the motor 210, as will be described in due course. It will be appreciated that when the device is assembled the lug 93 will be permanently retained in the recess 84 (in contrast to lug 50 which is only located in recess 83 during active manual locking or unlocking of the 25 device). The connector shaft 100 comprises an annular plate 101 which in use is attached to the annular plate 62 of the dividing spacer 60 and the second end of the turn handle 10. The annular plate 101 defines a main aperture 30 102 therein which is generally circular, but has first and second, diametrically opposed, extended rectangular aperture portions 103, 104. The first rectangular aperture portion 103 extends radially further than the second rectangular aperture portion 104. The first and 35 second extended rectangular aperture portions 103, 104 are each partially defined by an outer edge 103a, 104a, respectively which defines the radially outermost extent 2142301_1 (GHMaiters) 11/12/09 - 22 of the respective rectangular aperture portions 103, 104. The distance between the outer edges 103a, 104a is somewhat greater than a length of the locking pin 80 (so that, in use, the locking pin can move transversely 5 between the outer edges 103a, 104a). Further provided in the annular plate 101 are two small apertures 103b, 104b to allow screws 128, 129 to pass therethrough. Projecting in the second end direction from the 10 annular plate 101 is a first generally cylindrical wall portion 105 of the connector shaft 100, which provides a generally cylindrical cavity 106 (coaxial with the connector shaft) therein. The generally cylindrical cavity 106 has a diameter corresponding to the diameter of 15 the disc 92 of the shaft drive 90. Apertures 107, 108 are provided in the cylindrical wall portion 105 aligned with the first and second extended rectangular aperture portions 103, 104. The axial length of the apertures 107, 108 (in the direction perpendicular to the annular plate 20 101) is very slightly less than the height of the locking pin 60. The outer edge 103a, of the first rectangular aperture portion 103 is provided radially further out than the outer surface of the cylindrical wall portion 105. The outer edge 104a, of the second rectangular aperture 25 portion 104 is provided radially aligned with the outer surface of the cylindrical wall portion 105. A small outwardly projecting boss 105a is provided on the wall portion 105. The first generally cylindrical wall portion 105 30 and generally cylindrical cavity 106, extend (in the second-end direction) beyond the apertures 107, 108 by a distance which corresponds to the thickness of the disc 92 of the shaft drive 90. The first generally cylindrical wall portion 105 terminates at a first end part of a 35 second generally cylindrical wall portion 109 of the connector shaft 100. The second generally cylindrical wall portion 109 is provided with an axially extending 2142301_1 (GHManers) 11/12109 - 23 cylindrical through bore 110 which is substantially smaller in diameter than the generally cylindrical cavity 106 and is dimensioned to receive the elongate shaft 91 of the shaft drive 90 therein. The second generally 5 cylindrical wall portion 109 reduces in diameter towards its second end, and is provided at the second end thereof with an external male threaded portion 111. In the assembled locking device 1, the shaft drive 90 is received in the connector shaft 100, so that 10 the elongate shaft 91 of the shaft drive 90 extends through the axially extending cylindrical through bore 110 of the connector shaft 100, with the second end of the shaft 91 extending from the connector shaft 100 so that the open bore 94 part of the shaft 91 can be connected to 15 the motor 210. Further, the disc 92 is located in the second-end part of the generally cylindrical cavity 106, with the first end face of the disc substantially flush with the second end limits of the apertures 107, 108, and the lug 93 projecting in the first end direction. The 20 locking pin 80 is received in the first-end part of the generally cylindrical cavity 106, so that it is supported on the parts of the first generally cylindrical wall portion 105 which define the second-end limits of the apertures 107, 108, and on the first end face of the disc 25 92, with the lug 93 retained in the recess 84. The locking pin extends transversely into one or both of the rectangular aperture portions 103, 104 (depending on the position of the locking pin 80 relative to the connector shaft 100). The lock engaging members 63, 64 of the 30 dividing spacer 60 are accommodated in the axially extending grooves or recesses 19, 20 of bore 16 of the turn handle 10. The opposed projections 69, 70 (of the dividing spacer 60) which have part cylindrical outer faces 69a, 70a, are inserted into the main aperture 102 of 35 the connector shaft 100, one on either transverse side of the locking member 80, and the dividing spacer 60 and connector shaft 100 are attached to the turn handle using 2142301_1 (GHMallers) 11112/09 - 24 the screws 128, 129. Thus the turn handle 10, dividing spacer 60, connector shaft 100, locking member 80 and shaft drive 90 are effectively assembled as a unit. Rotation of the shaft drive 90 to a first rotational 5 position can move the locking pin 80 to a first locking pin position, in which it extends into the first rectangular aperture portion 103 substantially to the outer edge 103a thereof, so that the locking pin extends substantially beyond the outside of the first generally 10 cylindrical wall portion 105. (This corresponds to a locked configuration of the device, as will be described hereafter.) Rotation of the shaft drive 90 to a second rotational position can move the locking pin 80 to a second locking pin position, in which it extends into the 15 second rectangular aperture portion 104 substantially to the outer edge 104a thereof, so that no part of the locking pin 80 extends substantially beyond the outside of the first generally cylindrical wall portion 105. (This corresponds to a locked configuration of the device.) 20 With particular reference to Fig.s 11a to 11g, a first lock body part, which in this embodiment is in the form of the panel holding cup 130, is in use rotationally fixed, and has a through cavity 132 adapted to receive the first and second generally cylindrical wall portions 105, 25 109 of the connector shaft 100 therethrough. The holding cup 130 comprises a first-end generally cylindrical part 134 which defines a first end part 136 of the through cavity 132. The first end part 136 of the through cavity is defined by an interior wall 138 of the first-end 30 generally cylindrical part 134 and is adapted to receive the first generally cylindrical wall portion 105 of the connector shaft 100 therein. The first end part 136 of the through cavity provides a generally cylindrical cavity portion 140, which includes a part circumferential recess 35 141 which extends about an angle of approximately 90 degrees. The part circumferential recess 141, in use, receives the outwardly projecting boss 105a provided on 2142301_1 (GHMaiters) 11112109 - 25 the wall portion 105 of the connector shaft 100, so that the boss 105a, and thus the connector shaft 100 (and the turn handle) is constrained to 90 degrees of rotational movement relative to the lock body. In use the extremes 5 of this 90 degrees of movement comprise the latched and unlatched positions of the holding latch 240. The first end part 136 of the through cavity additionally provides first and second locking recesses 142, 144 which can interact with the locking pin 80 (which is, in use, housed 10 in the connector shaft 100, as described above) to allow the turn handle 10 to be rotationally locked relative to the panel holding cup 130 (and thus, also rotationally locked relative to the window 157, or other panel to which the locking device is mounted). It will be appreciated 15 that the locking pin 80 can enter one of the locking recesses 142, 144 when the locking pin is in its first position, in which it extends transversely substantially beyond the outside of the first generally cylindrical wall portion 105, as described above. The first and second 20 locking recesses are spaced 90 degrees apart, so that the turn handle 10, and the holding latch 240 can be locked in either a latched or unlatched arrangement. The panel holding cup 130 further comprises a second end part 150, which is adapted to extend through an 25 aperture of the window or panel 157 and engage the second lock body part (spacing washer 160) so that the first and second lock body parts (holding cup 130 and spacing washer 160) are rotationally fixed relative to each other and relative to the window 157 (or other panel). Thus the 30 second end part 150 has a non-circular external profile, and is adapted to be received in a complementary part of the spacing washer 160, as will be described hereafter. With particular reference to Fig.s 12a to 12c a second lock body part which, in this embodiment, is in the 35 form of the spacing washer 160 comprises a generally annular first end surface 162, which is adapted to be securely fixed to an interior surface 159 of a panel or 21423011 (GHMatters) 11/12J09 - 26 window 157 in the region of a through aperture 158 thereof, for example by use of a suitable adhesive (eg a one-component polyurethane adhesive such as is commercially available under the trade mark Sikaflex-255 5 may be suitable, as may other types of adhesive. In this embodiment the first end surface 162 is provided with a number of recesses 163 to accommodate adhesive and facilitate attachment. The first end surface 162 is provided with an axially short circular central boss 164 10 which can extend some distance into the panel or window aperture 158 to assist location of the spacing washer 160 relative thereto. A through cavity extends axially through the spacing washer 160, and comprises a first-end cavity portion 166, which is relatively large in 15 transverse cross section and has a non-circular cross sectional shape so that it can receive, and be rotationally fixed relative to, the second-end part of the panel holding cup 130. The through further comprises a second-end cavity portion 168, which is circular in cross 20 section and has a relatively small transverse cross sectional size which corresponds to the cross sectional size of the second-end cavity portion of the panel holding cup 130, and is adapted to receive the second generally cylindrical wall portion 109 of the connector shaft 100 25 therethrough. With particular reference to Fig.s 13a to 13c a first end part of a motor case which, in this embodiment, is in the form of the motor case face plate 170, which provides a first end cap of a generally cylindrical motor 30 casing. The motor case face plate 170 comprises an end plate 171 provided with a central boss 172 having an internal, female, threaded portion, adapted to receive and threadedly connect to the male threaded portion 111 of the connector shaft 100. In use a shaft of the motor, the 35 elongate shaft 91 or both, extend into or through the central boss 172. Threaded radially extending bores 174 are provided in the central boss 172 for receiving grub 2142301_1 (GHMatters) 11/12109 - 27 screws (not shown) which can be used to secure the connection of the male threaded portion 111 to the motor case face plate 170. Depending from the end plate 171 a cylindrical wall portion 176 is provided for connection to 5 the generally cylindrical central part 190 of the motor case. Threaded radially extending bores 178 are provided in the cylindrical wall portion 176 for receiving grub screws (not shown) which can be used to secure the connection of the motor case face plate 170 to the central 10 part 190. With particular reference to Fig.s 14a to 14d a central part of a motor case 190 comprises a generally cylindrical first-end wall portion 192 for connection to the interior of the cylindrical wall portion 176 of the 15 motor case face plate 170, an axially central tubular wall portion 194 which in this embodiment has a non circular (eg generally octagonal) external wall cross section, and a generally cylindrical second-end wall portion 196 for connection to the motor case end cap 260. A transverse 20 wall 197 is provided in the region of the second-end wall portion 196 for supporting the motor 210, and the transverse wall 197 is provided with apertures 198, 199 to allow wires associated with the electric motor to pass between the interior and exterior of the motor case. The 25 transverse wall 197 is further provided with a motor shaft aperture 200 (which can provide a void for a part of a motor shaft provided externally at the non-output end of a motor and avoid that part of the motor shaft engaging the motor case). The generally cylindrical second-end wall 30 portion 196 is provided with a transverse channel 201 for allowing the motor wires to exit at a side of the motor casing. With particular reference to Fig.s 15a and 15b the motor 210 may be of any appropriate type but is 35 preferably a reverse polarity electric motor. The output shaft 212 of the motor 210 is non-circular in cross section (preferably generally semicircular in transverse 2142301_1 (GHMatters) 11/12109 - 28 cross section) and is adapted to connect to the shaft drive 90, and, more specifically, to the open bore 94 of the second end shaft portion of shaft 91. The motor 210 has wires 213, 214 which can be connected to any suitable 5 control system, but in the preferred use of the device, to the security system of a vehicle. With reference to Fig.s 16a to 16c, the holding latch 240 is in use rotatable between latched and unlatched positions. In this embodiment the holding latch 10 240 comprises an elongate latch portion 242 and a generally annular connection member 244. The connection member 244 is configured to engage around the outside of the central part 190 of the motor case, and to move therewith (when the motor case is moved by operation of 15 the turn handle 10. The connection member 244 can be positioned at any desired axial position on the central part 190 of the motor case, which can allow appropriate positioning of the holding latch 240 for a wide range of window/frame (or panel/frame) configurations. The 20 connection member 244 is provided with radially extending threaded bores 174 for receiving grub screws (not shown) which can be used to secure the holding latch 240 at a desired axiat position on the central part 190 of the motor case. 25 With reference to Fig.s 17a to 17c, a second-end part of a motor case which, in this embodiment, is in the form of a motor case end cap 260, comprises a comprises a second-end plate 262 provided with a cylindrical wall portion 264 depending therefrom for connection to the 30 generally cylindrical central part 190 of the motor case. Threaded radially extending bores 265, 266 are provided in the cylindrical wall portion 264 for receiving grub screws (not shown) which can be used to secure the connection of the motor case end cap 260 to the central part 190. 35 It will be appreciated that, in use, the turn handle 10, dividing spacer 60, part of the connector shaft 100, the locking member 80, part of the shaft drive 90, 2142301_1 (GHMatters) 11112109 - 29 and the panel holding cup 130 are provided on an exterior side of the window or other panel. It is therefore envisaged that in commercial supply of the locking device these elements will be provided effectively assembled as a 5 unit which cannot be easily disassembled. This can be achieved by arranging the elements as described above, and providing a securing ring 126 (see Fig. 4) at the first end of the threaded part of the connector shaft 100 to secure the panel holding cup 130 on the connector shaft 10 100. If desired a circlip, rather than securing ring 126, may be used The locking device 1 can be installed in an aperture of a window 157 (or other panel) by the following procedure. First, attaching the spacing washer 160 to the 15 window, as described above, then passing the second end of the connector shaft through the aperture 158 and through the spacing washer 160, so that the second end part of the panel holding cup 130 is received in the spacing washer 160 and the second end of the connector shaft extends 20 therethrough. The second end of the shaft drive 90 is then attached to the motor output shaft, and the motor case face plate 170 is threaded onto the second end of the connector shaft 100, and secured with grub screws. The motor case face plate 170 should be threaded onto the 25 second end of the connector shaft 100 only as far as is desirable, bearing in mind that tightening this connection excessively may have the effective of clamping the spacing washer 160 and panel holding cup 130 between the motor case face plate 170 and the annular plate 101 of the 30 connector shaft 100, and thereby making the turn handle 10 difficult to turn. Securing the second end of the connector shaft 100 to the motor case face plate 170 with grub screws is considered adequate to secure and rotationally fix them, since only enough torque to effect 35 rotation of the motor casing and holding latch 240 (when the handle is unlocked) is transmitted between these elements, so the torsional load between them, in use, is 2142301_1 (GHMatters) 11112109 - 30 small. The axial position of the holding latch 240 on the motor casing can be adjusted to ensure effective latching. In the illustrated embodiment the elongate latch portion 242 extends away from the plane of the generally annular 5 connection member 244 in the first end direction of the device to ensure that the holding latch need not be positioned so close to the spacing washer 160 that it would not be securely mounted on the central part 190 of the motor housing. The wires of the motor are then 10 connected to the output of the vehicle security system. In use with windows of a canopy of a utility vehicle, it is envisaged that each conventional manual lock of the canopy windows be replaced (or substituted) by a locking device as disclosed herein, and that the positions of the 15 locking devices would correspond to the positions of the replaced (or substituted) manual locks. Ducting for the wiring could be attached to the windows to keep the wiring tidy and safe, with the wiring running onto the windows at or close to the window hinges and being routed close to 20 the window edges. Typically the ducted wiring will run close to piston supports of the windows, and be rendered relatively inconspicuous by this proximity. Once installed the locking device can be latched or unlatched by operation of the turn handle 10 as 25 desired. The turn handle can be locked, relative to the lock body, or unlocked, by operation of the vehicle security system, which can operate the motor to move the locking pin 80, via the shaft drive 90. Alternatively, the turn handle can be locked, relative to the lock body, 30 or unlocked, by operation of the manual lock, using a key. Manual locking or unlocking is performed by inserting the key in the barrel lock 40, pushing with the key to move the barrel lock axially so that the lug 50 engages the locking member 80, and then rotating the key. When the 35 manual pressure is released and the key removed, the barrel lock is moved away from the locking member 80 by the spring 59, so the lug 50 is disengaged from the 2142301_1 (GHMatters) 11/12/09 - 31 locking pin 80. Thus the manual lock does not interfere with any subsequent operation of the locking mechanism by the motor. It will be appreciated that operation of a 5 utility vehicle canopy with windows equipped with the locking devices as described herein would be extremely convenient. A user can unlock all canopy window locks (normally two locks per canopy window) at the touch of a button on the vehicle remote control unit, access several 10 different parts of the vehicle through different windows merely by operating the latches using the handles, latch the windows and, when desired, lock all the windows easily using the vehicle remote. This is in contrast to use of known manual locks for canopies, in which many unlocking 15 and locking operations would be required. Further even when the vehicle as a whole (and hence the locking device(s)) are unlocked, such as when the vehicle is occupied, during transit, the windows remain latched (even if unlocked). Thus it is practicable and convenient to 20 have only a single locking and unlocking control for the vehicle (although, of course, a dual system, providing separate locking of the vehicle doors and the canopy windows, could be implemented if desired). Further, it will be appreciated that the windows may be locked and 25 unlocked using the key if it is undesirable or impracticable to use the vehicle's remote locking system. Thus if, for example, the remote control unit were damaged or inoperative, or if the vehicle suffered a power failure, the locking devices could still be operated in a 30 similar manner to known manual locking devices. It will be appreciated that the positioning and configuration of locking devices for use with utility vehicle canopy windows is constrained by a number of factors. First, the locks extend through an aperture in 35 the window, and in order to maintain structural strength of the window the aperture cannot be provided too close to the edge of the window. Thus use of an elongate latch 2142301_1 (GHMatters) 11/12/09 - 32 member which can be rotated between the obstructed and unobstructed positions is convenient. Second, unlike car doors, the windows of canopies cannot practicably accommodate locking devices in internal spaces provided 5 therein. Third, the windows of currently available canopies are often provided with apertures appropriate for manual turn-handle, manual-lock, latches, and it is desirable to provide a locking device which can utilise such existing apertures. The described embodiments are 10 suitable for fitting, or retro fitting, to such canopies. It is often desirable to provide two canopy locks on each canopy window, and the locks may be spaced apart by a distance which allows simultaneous manual operation of the handles by a single user. It is believed that 15 users prefer to perform a given latching or unlatching operation by simultaneously turning the handles of two locks in opposing rotational directions (eg clockwise with the right hand and anticlockwise with the left hand simultaneously) since this represents a mirror image 20 symmetrical operation which feels more comfortable than, for example, turning outstretched hands clockwise simultaneously. To allow this, locking devices as disclosed herein may be provided in matched pairs which provide mirror image latching (or unlatching) operations. 25 One way of achieving this is to provide a first and second locking devices (of a pair) in which some elements of the first locking device are effectively configure as mirror image versions of corresponding elements of the first locking device. It will be appreciated that Fig.s 10e, 30 10f, and lOg illustrate a connector shaft 100 for a locking device designed for operation by a right hand of a user (a right-hand unit), with the boss 105a provided in mirror image position compared to the left-hand unit of 10a,b,c. Similarly Fig.s lle,f,g illustrate a panel 35 holding cup 130 for a right hand unit in which second locking recess 144 is provided in mirror image position compared to the left hand unit of Fig.s lla,b,c. 2142301_1 (GHMatters) 11/12/09 - 33 It will be appreciated that although the locking device has been described in relation to its use for locking canopy windows, the described device or variations thereof, is suitable for use in locking openable parts of 5 other containers, for example (but not limited to) toolboxes or other containers mounted on, or attached to, vehicles. This may be of particular value in the circumstances where several toolboxes or other containers are provided, allowing all the toolboxes or other 10 containers to be locked or unlocked in a single operation, rather than requiring individual unlocking and locking of a number of containers. The locking device may be of value in locking a container which is part of, or which is attached to, a trailer which does not have its own power 15 supply or powered locking system: when connected to a vehicle the vehicle's locking system could be used, but when detached from the vehicle the manual operation of the locking device could be used. Further, although the locking device has been described in relation to its use 20 with a vehicle remote locking system, the non-manual actuator could be controlled by other suitable systems. For example, a door of a shed or other container within or close to a garage could be locked or unlocked by utilising the security system which governs operation of the garage 25 doors (which may, for example be remotely controlled). In the claims which follow and in the preceding description, except where the context requires otherwise due to express language or necessary implication, the word "comprise" or variations such as "comprises" or 30 "comprising" is used in an inclusive sense, ie. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments of the invention. It will be appreciated that various parts or 35 features of the locking device disclosed herein are referred to in broader terms (eg, a lock body) and in more specific terms (eg the panel holding cup 130 and spacing 2142301_1 (GHMatters) 11112/09 - 34 washer 160, which together provide the lock body). Except where the context requires otherwise due to express language or necessary implication, it should be appreciated that statements made in the above description 5 of various embodiments which refer to such parts or features by reference to the more specific nomenclature should be regarded as providing an equivalent disclosure to the parts or features as referenced by the broader nomenclature, and vice versa. 10 Modifications and improvements may be incorporated without departing from the scope of the present invention. 2142301_1 (GHMatters) 11112/09

Claims (23)

1. A locking device for allowing a first 5 enclosure element to be locked relative to a second enclosure element, the locking device comprising: a lock body; a latch member moveable, relative to the lock body, between a first position, corresponding to a latched 10 configuration of the locking device, and a second position, corresponding to an unlatched configuration of the locking device; a manually operable handle, rotatable relative to the lock body, for operating the latch member between the 15 first position and the second position; a locking member moveable between a first position in which it prevents operation of the latch member by the handle by locking the handle against rotation relative to the lock body, and a second position 20 in which it does not prevent operation of the latch member by the handle; a first, manually operable, locking member controller, to move the locking member between the first and second positions; and 25 a second locking member controller, which can be electrically actuated by the security system of a vehicle, to move the locking member between the first and second positions.

2. A locking device as claimed in claim 1 wherein 30 the lock body is provided with an attachment portion for attaching to the moveable closure element.

3. A locking device as claimed in claim 2 wherein an extension portion part of the attachment portion is configured to extend into an aperture extending through 35 the moveable closure element.

4. A locking device for allowing a first, moveable, enclosure element of an enclosure to be locked 2142301_1 (GHMatters) 11112/09 - 36 relative to a second enclosure element of an enclosure which is substantially fixed relative to the enclosure, the locking device being mountable to a substantially planar, sheet-like, first enclosure element by mounting 5 through an aperture provided therein, the locking device having a first end for mounting on an exterior side of the first enclosure element and a second end for mounting on an exterior side of the first enclosure element, the locking device comprising: 10 a lock body comprising an attachment portion for attachment to the first enclosure element so that the attachment portion is securely fixed relative to the first enclosure element, at or adjacent the aperture; an extension portion, provided at a middle region 15 of the locking device which is intermediate the first and second ends thereof, for extending through the aperture of the first enclosure element; a latch member, provided closer to the second end than is the extension portion, the latch member being 20 moveable relative to the lock body between a first position, corresponding to a latched configuration of the locking device, and a second position corresponding to an unlatched configuration of the locking device; a manually operable handle, provided closer to 25 the first end than is the extension portion, rotatable relative to the lock body to operate the latch member between the first position and the second position; a locking system configurable to a first mode, in which the handle cannot operate the latch member and a 30 second mode, in which the handle can operate the latch member; and a powered actuator, provided closer to the second end than is the extension portion, operatively connected to the locking system to selectively configure the locking 35 system between the first and second modes.

5. A locking device as claimed in claim 4 wherein the powered actuator is suitable for connection to, and 2142301_1 (GHMatters) 11112/09 - 37 operation by, an automatic locking system of a vehicle.

6. A locking device as claimed in either of claims 4 or 5 wherein the extension portion has an extension portion axis which in use is substantially 5 perpendicular to the region of the first enclosure element adjacent the aperture and the manually operable handle is rotatable relative to the lock body about an axis of rotation which is substantially coaxial with the extension portion axis. 10

7. A locking device as claimed in any of claims 4 to 6 wherein the locking system comprises a locking member moveable between a first position in which it prevents operation of the latch member by the handle by locking the handle against rotation relative to the lock body, and a 15 second position in which it does not prevent operation of the latch member by the handle.

8. A locking device as claimed in any of claims 4 to 6 wherein the locking device further comprises a manually operable locking member controller comprising a 20 manual lock operatively connected to the locking system to selectively configure the locking system between the first and second modes, the manual lock being operable from a part of the device which is closer to the first end than is the extension portion. 25

9. A locking device as claimed in any of claims 1 to 3 or 8, wherein the manually operable locking member controller comprises a locking member control portion moveable between a first position in which it operatively couples to the locking member, and a second position in 30 which it does not operatively couple to the locking member.

10. A locking device as claimed in claim 9 wherein the locking member control portion is biased to said second position thereof. 35

11. A locking device as claimed in either of claims 9 or 10, wherein the manually operable locking member controller is provided with an associated key to 2142301_1 (GHMatters) 11/12/09 - 38 allow operation thereof, and is operable to move the locking member between the first and second positions only when said key is used.

12. A locking device as claimed in any of 5 claims 9 to 11 wherein the manually operable locking member controller comprises a rotatable lock barrel provided within the handle.

13. A locking device as claimed in any of claims 9 to 12, wherein the locking member control portion 10 comprises a locking member engagement part, positioned on an end of the locking barrel and engageable with a complementary part of the locking member, so that rotation of the locking barrel, when the locking member control portion is in its first position, moves the locking member 15 between the first and second positions thereof.

14. A locking device as claimed in any of claims 9 to 13, wherein movement of the locking member control portion between its first and second positions is along an axis coaxial with axis of rotation of the rotatable lock 20 barrel and coaxial with an axis of rotation of the latch member between said first and second positions thereof.

15. A locking device as claimed in any preceding claim wherein the electrically actuated locking member controller comprises a drive shaft coupled at a first end 25 thereof to the locking member and driveable from a second end thereof.

16. A locking device as claimed in any preceding claim wherein the electrically actuated locking member controller comprises a motor housed within a motor 30 casing.

17. A locking device as claimed in claim 16 wherein the motor casing is connected to the handle so that it can be rotated by the handle and the latch member is mounted to the motor casing and rotatable as a unit 35 with the motor casing. 21423011 (GHMatters) 11/12/09 - 39

18. A locking device for use with a window of an 5 enclosure canopy of a vehicle, the vehicle having a security system, the locking device allowing a first enclosure element being a window of the canopy to be locked relative to a second enclosure element of the canopy, the locking device comprising a controller, 10 mountable on the first enclosure element, which can be electrically actuated by the security system of the vehicle to release the locking device to, in turn, unlock the first enclosure element relative to the second enclosure element. 15

19. A locking device according to claim 18 wherein the locking device is mountable to a substantially planar, sheet-like, first enclosure element by mounting through an aperture provided therein, the locking device having a first end for mounting on an exterior side of the 20 first enclosure element and a second end for mounting on an exterior side of the first enclosure element; wherein the locking device comprises: a lock body comprising an attachment portion for attachment to the first enclosure element so that the 25 attachment portion is securely fixed relative to the first enclosure element, at or adjacent the aperture; an extension portion, provided at a middle region of the locking device which is intermediate the first and second ends thereof, for extending through the aperture of 30 the first enclosure element; comprises a latch member, provided closer to the second end than is the extension portion, the latch member being moveable relative to the lock body between a first position, corresponding to a latched configuration of the 35 locking device, and a second position corresponding to an unlatched configuration of the locking device; a manually operable handle, provided closer to 2142301_1 (GHMatters) 11/12/09 - 40 the first end than is the extension portion, rotatable relative to the lock body to operate the latch member between the first position and the second position; a locking system configurable to a first mode, in 5 which the handle cannot operate the latch member and a second mode, in which the handle can operate the latch member; and a powered actuator, provided closer to the second end than is the extension portion, operatively connected 10 to the locking system to selectively configure the locking system between the first and second modes.

20. A canopy for a utility vehicle, the canopy having at least one window provided with a locking device in accordance any preceding claim. 15

21. A method of locking and unlocking a rotationally opening window or panel which forms part of an enclosure, comprising using a locking device in accordance with any of claims 1 to 20 which is mounted on a moveable window or panel. 20

22. A method in accordance with claim 21 wherein the locking device is mounted in an aperture provided in the moveable window or panel.

23. A locking device substantially as hereinbefore described with reference to and as shown in 25 the accompanying drawings. 214230)1 (GHMatters) 11112/09