Mobile electronic device mounting

Abstract

Disclosed is an accessory for a mobile electronic device comprising a rear wall and a locking mechanism that may be disposed in the rear wall. The locking mechanism can include at least one locking element movable relative to the rear wall for locking the case to a mount. In some forms, the accessory is in the form of a case for a mobile electronic device. A rotary element may be provided in the locking mechanism to position the at least one locking element for causing the locking mechanism for adopting a locked or unlocked condition. Also provided is a mount configured to receive at least part of the case locking mechanism; a mounting system for a mobile electronic device comprising the case and the mount; and a method of mounting a mobile electronic device contained within a case to a mount.

Description

MOBILE ELECTRONIC DEVICE MOUNTING1 BACKGROUND OF THE TECHNOLOGY1.1 TECHNICAL FIELD

[0001] This disclosure relates to mounting for mobile electronic devices and to systems, components and methods for mounting mobile electronic devices to structures.1.2 BACKGROUND ART

[0002] Numerous mounting systems have been developed to secure mobile electronic devices to cars, motorcycles, bicycles or other structures. A mount component of the mounting system is typically mounted to the structures, e.g., a car dashboard or a bicycle handlebar, and is releasably securable to a device case or other attachment secured to the mobile electronic device. The mounting system may be configured for rotation of the mobile device relative to the mount so that the case (or other attachment) may be retained to the structure. For example, in one form, a user is required to rotate the mobile device e.g., forty-five degrees relative to the mount in order to retain the case to the mount. Accordingly, if the user wants to secure their mobile electronic device to the mount in a particular orientation, e.g., in a ‘portrait’ orientation, the mobile device must be oriented forty-five degrees from the portrait orientation, i.e., starting midway between a portrait and ‘landscape’ orientation, and rotated through the forty-five degrees into the portrait orientation. Further, a locking arrangement is provided on the mount to lock the case in its retained configuration. The locking arrangement may include a spring biased tab disposed on the mount that engages with the case to lock the case to the mount. To release the case, the tab is manually moved from engagement with the case whereafter, the case can be rotated to disengage from mount. Accordingly, the locking arrangement requires a manual actuation to release whilst often also requiring the mobile device to be rotated to disengage the device from the mount.

[0003] Whilst such mounting arrangements have been found effective in securing the mobile device to a structure, it can be appreciated that the user must apply some consideration in bringing their mobile device into contact with the mounting apparatusto achieve the desired, final orientation of their mobile device and may require considerable dexterity in releasing the case or attachment from the mount.

[0004] Other types of mounting arrangement have been developed. These include arrangements where a magnetic engagement between the device (and / or case or attachment) and a mount is provided to retain the device to the mount. One such arrangement includes circular magnetic arrays and is compatible with Apple’s MAGSAFE technology, which Apple Computer, Inc. (“Apple”) has developed for magnetically retaining its mobile devices to accessory products. Whilst the magnetic connection is easy to use and has the benefit of precisely aligning the device on a mount, it is still desirable to include a mechanical locking arrangement in some instances, particularly where the mobile device may be subjected to repeated loading (such as when connected to a bicycle, motorcycle or in off road vehicles).

[0005] It is to be understood that, if any prior art is referred to herein, such reference does not constitute an admission that the prior art forms a part of the common general knowledge in the art, in Australia or any other country.2 SUMMARY

[0006] In one form, there is disclosed an accessory for securing to a mobile device that includes an accessory body with a rear wall, and a locking mechanism disposed in or on the accessory body. The locking mechanism includes at least one locking element movable relative to the accessory body for the locking mechanism to adopt a locked condition for locking the accessory to a mount.

[0007] In one form, the locking mechanism can adopt an unlocked condition for unlocking the accessory from the mount. In one form, the locking mechanism further comprises at least one rotary member rotatable relative to the accessory body to position the at least one locking element to cause the locking mechanism to adopt at least one of the locked or unlocked condition.

[0008] In one form, the accessory is in the form of a case for a mobile electronic device, the case including a case body to receive the mobile electronic device and having the locking mechanism disposed in or on the case body.

[0009] In one form, the accessory is in the form of an attachment having an attachment body for securing to a mobile device case, or for securing directly to the mobile electric device and having the locking mechanism disposed in or on the attachment body.

[0010] Including a locking mechanism as part of an accessory to the mobile device, rather than within the mount, can reduce the complexity of locking and / or unlocking of the mobile device relative to the mount, thereby improving user experience. It may also simplify the ecosystem when the mobile device is arranged to be mounted in multiple locations. With the locking arrangement being in the accessory secured to the mobile device, it may obviate the need for separate locking mechanisms being provided in the mounts.

[0011] In some embodiments, the locking mechanism comprises a release actuator which is user actuatable for unlocking the device from the mount. In some forms, the actuator comprises at least one user interfacing part (such as a button, lever, tab or the like) which is accessible when the locking mechanism adopts the locking condition for unlocking of the accessory to the mount. In some forms, the user interfacing part may be depressible towards the case for unlocking of the accessory from the mount. In one form, where the accessory is in the form of a case, the release actuator comprises two user interfacing parts (e.g. buttons) disposed on opposite sides of the case. When the device is a mobile (or cell) phone, the buttons may be depressed merely by squeezing the case. Further, the case may be manipulated (e.g. pulled, rotated), and the locking mechanism unlocked by the user activating the release actuator, using only one hand.

[0012] In some forms, the at least one rotary member interconnects the release actuator and the at least locking element and wherein operation of the actuator induces rotation in the at least one rotary member to move the at least one locking element to cause the locking mechanism to adopt the unlocked condition.

[0013] In some forms, the accessory provides positive visual feedback on locking of the accessory to the mount under operation of the locking mechanism. Such visual feedback can complement other feedback cues, such as haptic, or tactile feedback of locking particularly where it may be difficult for a user to hear or feel (say forexample on a motorcycle where the user may be wearing a helmet and gloves). In some forms, for example where the device is a mobile phone, the visual feedback of locking is visible from the front of the device. In some forms, the release actuator provides such visual feedback on locking of the case with the user interfacing part projecting beyond a side of a case when the locking mechanism adopts a locked condition. To provide a positive indication of locking, the release actuator may be moved to a second position to indicate that the locking mechanism is not in its locked condition. This second position may cause the user interfacing part to retract into or become flush with accessory body such that it does not become a catch point on the accessory case or interrupt the profile of the accessory body.

[0014] In some forms, the locking mechanism is caused to adopt the locking condition (by movement of the at least one element) on locating the accessory on, or relative to, the mount. Automating this locking action can reduce the complexity of the locking function, enhance the user experience, and improve reliability of the locking arrangement.

[0015] In some forms, the rear wall of the accessory body further comprises a recess arranged to receive a projection on the mount.

[0016] In some forms, the locking mechanism is provided in a largely planar configuration and is disposed outside the bounds of the recess such that the mechanism does not impact significantly the thickness of the rear wall. In some forms, the thickness of the rear wall including the locking mechanism is within the range of 2mm to 6mm, with a lesser thickness within the bounds of the recess.

[0017] In some forms, the rear wall thickness within the bounds of the recess, i.e., at the base of the recess which separates the mobile device and a distal end of the projection of the mount which locates within the recess may be 2mm or less. In some forms, the recess may extend through the entirety of the rear wall such that it forms a through passage in the accessory body.

[0018] In some forms, the mount is a charger adapted for wireless charging and has a transmitting coil in the projection of the mount to interact with a receiving coil in the device. In this way this wall thickness, that may be 2mm or less, or through passage, provides a spacing that allows the device and charger (transmitting coil) tobe close together for improving wireless charging efficiency. The Qi v2.0 wireless charging standard of the Wireless Power Consortium (the Qi2 Standard) specifies a maximum of 2mm between charger and device in order to provide acceptable charging efficiency. The contents of the Qi2 Standard are incorporated herein by reference, and more information on the standard can be found here: www.wirelesspowerconsortium.com / standards / qi-wireless-charging / . In certain embodiments, an accessory in accordance with the present disclosure is configured to allow charging in compliance with the Qi2 Standard. The accessory may be configured so that the distance between the charger and the device is not greater than 2mm.

[0019] The maximum (i.e., overall / total) rear wall thickness outside the bounds of the recess may be up to around 5.5mm, such as around 5 mm, e.g. 4.7mm. Within this space the locking mechanism may be substantially contained.

[0020] In some forms, where the locking mechanism is arranged to work in conjunction with an interfitting arrangement with the rear wall including a recess, at least one locking element of the locking mechanism is disposed at a perimeter of the recess and movable within the recess for locking of the accessory to the mount. In some forms, relative to an axis of the recess, the locking element may translate radially into and out of the recess. In other forms, the locking element may be angularly displaced relative to the axis.

[0021] In some forms, the at least one rotary member is rotatable relative to the at least one locking element and wherein the angular displacement of the rotary member relative to the at least one locking element causes the locking mechanism to adopt at least one of a locked or unlocked condition. In some forms, the at least one locking element is fixed to the rotary member.

[0022] In some forms, the at least one locking element comprises at least one tab movable between a retracted and extended position. In one form, the tab may translate along a linear path in a sliding motion. In another form, the tab may move in a non-linear path such as with an arcuate path or through a more complex movement. The at least one tab may be biased into its extended position and is movable from the extended position to the retracted position by the release actuator.

[0023] In some forms, the locking mechanism may be latched in the retracted position. In some forms, the latching arrangement may be a releasable catch may be provided to latch the at least one tab in the retracted position. In some forms, a trigger arrangement is provided to release the latching arrangement to allow the locking element to move to its extended position.

[0024] In some forms, where the rear wall includes the recess which is arranged to receive the mount when the at least one tab is in the retracted position, the at least one tab is configured to project into the recess in the extended position when so received. In some forms, the accessory and mount are retained in that position independent to locking. When the mount is received in the recess in this retained position, the at least one tab is arranged to move from the retracted position to the extended position be received in a corresponding keeper structure in the mount to lock the mount to the case. In some forms, the catch (or other latching arrangement) is disposed within the recess and is configured to be released on locating the mount within the recess. In such an arrangement, the locking actuator (or triggering arrangement) is provided by components of the catch and mount that interengage on moving the accessory onto the mount.

[0025] In some forms, the at least one locking element is movable relative to the accessory body along an arcuate path for locking the case to the mount. In some form, where the at least one locking element is fixed to the rotary member, the at least one locking element moves in the arc of rotation of the rotary member.

[0026] In some forms, the rotary member is in the of a ring or a segment thereof and moves within a plane of the rear wall. In some forms, the rotary member rotates about the recess.

[0027] In some forms, the at least one locking element and / or actuator has a catch that moves out of a plane of the rear wall to release.

[0028] In some forms, the rotary member and / or at least one locking element is movable between first and second positions. In some forms, the rotary member and / or at least one locking element is in in the first position when the locking mechanism is in its unlocked (or mounting) condition. In some forms, the rotarymember and / or at least one locking element is in the second position when the locking mechanism is in the locked condition

[0029] In some forms, the locking mechanism further comprises a locating arrangement to releasably retain the rotary member or and / or locking element in at least one of the first and second positions. With such an arrangement, a biasing force is required to move the rotary member and / or at least one locking element from that position to overcome the bias of the locating arrangement that is releasably retaining the element in that position. The rotary member and / or at least one locking element may be in any form described above (e.g. tab, ring, ring segments). Further, when the locating arrangement retains the rotary member and / or at least one locking element in the first position, it can provide the latching function discussed above. When the locating arrangement retains the rotary member and / or locking element in the second position, it may aid the locking function of the locking mechanism.

[0030] In some forms, the locating arrangement may be through mechanical interference to maintain the rotary member and / or at least one locking element in the at least one of the first and second positions. In some forms, the locating arrangement may provide a positive bias to maintain the rotary member and / or at least one locking element in at least one of the first and second positions. In some forms, this bias may be by virtue of a resilient member such as a spring that biases the rotary member and / or at least one locking element into position. A hard stop may be provided in the accessory to define that position.

[0031] In some forms, the locating arrangement is further configured to cause the rotary member and / or at least one locking element to be bistable in the first and second positions. In one such an arrangement, the locating arrangement is further caused to drive movement of the rotary member and / or at least one locking element to at least one of the first and second positions when biased out of the other of the first and second positions.

[0032] In some forms, the locating arrangement comprising at least one magnet configured to locate the rotary member and / or at least one locking element in the at least one of the first and second positions by magnetic force.

[0033] In some forms, the locating arrangement comprises a magnetic array and is configured to cause the rotary member and / or locking element to be bistable in the first and second positions by magnetic force and / or drive movement of the rotary member and / or locking element between the first and second positions.

[0034] In some forms, the at rotary member is in the form of a ring or ring segment. In some forms, the ring comprises a plurality of lobes which constitute the locking elements of the locking mechanism, and the mount comprises a plurality of keepers, with respective ones of the lobes being arranged to engage under respective ones of the keepers in the second position

[0035] In some forms, the rotary member may be influenced by the locating arrangement to be bi-stable in the first and second position. In some forms, the locking mechanism includes the locating arrangement in the form of the magnetic array to cause the locking ring to be bi-stable in the first and second positions.

[0036] In some forms, the rotary member requires the application of an external biasing force to move from the first position and / or second position. In some forms, this external biasing force is applied by a triggering arrangement of the locking mechanism to move from the first position and / or by a release actuator to move from the second position.

[0037] In some forms, the external biasing force required to move the rotary member from one of its bistable positions is provided by the placement of a magnet in proximity to the device case.

[0038] In some forms, the triggering arrangement to induce the external biasing force to move the device from the first position is caused by the interaction of components on the rotary member and mount on locating the accessory on the mount.

[0039] In some forms, the components include a ramp surface where a force on the ramp surface on the rotary member in the direction of the axis of the rotary member is caused to induce a rotational force on the rotary member.

[0040] In some forms, where the rotary member comprises a plurality of lobes and the mount comprises a plurality of keepers, the component of the triggeringarrangement on the rotary member is the trailing end of at least one of the lobes, and the component on the mount is the keeper disposed adjacent the respective keeper of the at least one lobe.

[0041] In some forms, the accessory is configured to align on presentation of the accessory body onto the mount through an interaction between an aligning component on the accessory body and a corresponding component on the mount. Whilst these components may align through physical contact such as through a mating guiding structure, in one particular form this self-aligning is done through a magnetic interaction.

[0042] In some forms, the accessory further comprises an aligning component configured to interact with a corresponding component on the mount to align the accessory with the mount into a position, for example a retained position, that allows for locking of the accessory to the mount under operation of the locking mechanism.

[0043] In some forms, where the accessory body includes a rear wall, and a recess disposed in the rear wall and opening to an outer surface of the rear wall, when the mount is received in the recess, the locking mechanism is movable to adopt the locking condition to lock the accessory to the mount without requiring rotation of the accessory on the mount. In some forms, the locking member comprises a locking element in any form described above.

[0044] In some forms, the accessory further comprises a drive arrangement to bias the at least one locking element to adopt a second position and thereby cause the locking mechanism to adopt the locking condition. In some forms, the locking element is caused to move from a first position (where the locking mechanism is in an unlocked condition) to the second position on receipt of the mount within the recess.

[0045] In some forms, the accessory further comprises an aligning component configured to interact with a corresponding component on the mount to align the case with the mount for receipt of the mount within the recess.

[0046] In some forms, the accessory is arranged to be retained on the mount independently of locking. In some forms, this retention is by virtue of magnetic engagement between the accessory and the mount. In some forms, this magneticretention may also be arranged to correctly align the accessory on the mount. In some forms, presentation of the accessory to the mount causes a magnetic attractive force to be applied by virtue of a magnetic interaction with elements in the accessory (and / or mobile device) and the mount. This magnetic interaction aligns the accessory on the mount and draws the accessory onto the mount.

[0047] In some alternative forms, the accessory is designed to be rotated when presented on the mount (with the projection of the mount disposed in the recess in the rear wall of the accessory) so as to be retained on the mount through a mechanical interference. In some forms, such rotation is required to cause projections (lobes) on the mount to locate behind corresponding lobes disposed on the accessory body that project into the recess. In some forms, the locking mechanism of the accessory is configured to lock the accessory to the mount in this retained position (i.e. to prevent further relative rotation between the accessory body and the mount).

[0048] In some forms, the locking mechanism provides a latching arrangement to allow the releasable locking of the accessory and mount when it is in the mechanical retained condition by the lobes of the mount located under the lobes of the accessory.

[0049] In some forms, the latching arrangement of the locking mechanism comprises the rotary member in the form of a keeper ring (or segment thereof) that is able to rotate within a plane of the rear wall between a first and second position. The keeper ring may include a keeper structure and the locking mechanism further comprises at least one tab configured be received in the keeper structure when the keeper ring is in the second position and the at least one tab is in an extended position. In this arrangement, the at least one tab may provide a latch for the locking mechanism as explained below.

[0050] The keeper ring may be disposed about the periphery of the recess. The recess may be arranged to receive the mount when the keeper ring is in the first position, and when so received, the keeper ring is captured on the mount so that relative rotation is prevented. However, when so captured, the mount can be sufficiently located within the recess, such that the lobes on the mount can locate past the lobes on the accessory body. In some forms, the accessory is arranged to be angularly displaced on the mount about the axis of the keeper ring as it is moved to itsretained position. As the keeper ring is rotationally captured on the mount, this movement causes the keeper ring to move from the first position to the second position relative to the accessory body. When in the second position, the further tabs (fixed lobes) on the accessory body locate behind lobes on the mount (to cause the accessory to be retained on the mount) and the keeper structure on the keeper ring aligns with the at least one tab. The at least one tab may be located in a retracted position but biased into an extended position. Once the keeper structure aligns with the at least one tab, the tab is able to move to its extended position under its bias to move into the keeper structure, thereby preventing relative rotation between the mount and the accessory, thus locking of the accessory to the mount (by virtue of the mechanical interaction between the lobes on the mount and accessory wall and the latching under the locking mechanism).

[0051] To unlock the accessory from the mount, one or more release actuators may be provided (in any form as detailed above) that allow movement of the at least one tab to move to a retracted position, thereby unlocking the accessory from the mount and allowing relative rotation between the accessory and the mount to release the accessory. Such rotation releases the lobes on the mount from underneath the lobes on the accessory, to allow the accessory to be lifted off the mount.

[0052] In some forms, the accessory further comprises a visual indicator arranged to be visible when viewing the front face of the electronic device to positively indicate the locking mechanism is in its locking condition.

[0053] In some forms, the accessory is in the form of a case having a peripheral wall extending from rear wall to define a cavity to receive the mobile device.

[0054] In some forms, the accessory is in the form of an attachment which is arranged to be secured to a mobile device case or directly to the electronic device. The attachment may have a front face which is located against the device case or device and may be secured thereto by an adhesive or magnetic force (having stronger magnetic attraction than typically provided under the MAGSAFE system to be a more permanent attachment), or through a mechanical clamp arrangement. In another form, a further intermediate structure may be provided, such a pouch (to receive the device), or strap that provide a means to secure the attachment to the mobile device or case.

[0055] In yet a further form, the accessory may be in the form of an adapter having the locking mechanism operable from the rear wall of the accessory and having a further connecting arrangement on the opposite front wall to operate with another mounting system. In this way, the adapter may provide for backward compatibility with existing mounting systems.

[0056] Also disclosed is a mounting system for a mobile electronic device comprising an accessory according to any form described above and a mount configured to interact with the locking mechanism for locking the accessory to the mount.

[0057] Also disclosed, is a mounting system for a mobile electronic device comprising an accessory as described in any form above and a mount. The mount may include a keeper structure to receive at least one locking element of the locking mechanism.

[0058] Also disclosed is a mount for use with any form of the above mounting system.

[0059] Also disclosed is a method of mounting a mobile electronic device having an accessory secured thereto to a mount, the method comprising; locating the accessory on the mount; and causing a locking mechanism within the accessory to adopt a locking condition, wherein when so adopted, the accessory is mechanically secured to the mount.3 BRIEF DESCRIPTION OF THE DRAWINGS

[0060] Embodiments will now be described by way of example only, with reference to the accompanying drawings in which:3.1 GENERAL ARCHITECTURE

[0061] Fig. la is a perspective view of an embodiment of a case for a mobile device with various mounting arrangements.

[0062] Fig. lb is a perspective view of an embodiment of a case, the case in line for connection to a mount.

[0063] Figs. 1c to If show alternative magnetic arrays.3.2 SLIDING MECHANISM

[0064] Fig. 2a is a perspective view of an embodiment of a case, the case attached to a mobile device and in line for connection to a mount, where the mount is shown in both front and rear perspective views with internal components visible.

[0065] Fig. 2b is a perspective sectional view of the case of Fig. 2a, the section showing an embodiment of a locking mechanism.

[0066] Figs. 3a and 3b are perspective views of the case of Fig. 2a, where: Fig. 3a shows the case in an assembled state; and Fig. 3b shows the case in an exploded view.

[0067] Fig. 4 is a perspective view of components of the locking mechanism of Fig. 2.

[0068] Figs. 5a and 5b are rear views of the locking mechanism of the case Fig. 2a, where: Fig 5a shows the locking mechanism in a mounting configuration; and Fig. 5b shows the locking mechanism in a locking configuration.

[0069] Figs. 6a and 6b are sectional views of the locking mechanism of the case of Fig. 2a, taken through B-B of Fig. 5a where: Fig 6a shows the locking mechanism in a mounting configuration; and Fig. 6b shows the locking mechanism in a locking configuration.

[0070] Figs. 7a and 7b are rear views of the case of Fig. 2a, where: Fig. 7a shows the case when the locking mechanism is in the mounting configuration; and Fig. 7b shows the case when the locking mechanism is in the locking configuration.3.3 ROTATION MECHANISM

[0071] Fig. 8 is a perspective view of an embodiment of a case, the case attached to a mobile device and in line for connection to a mount where the mount is shown in both front and rear perspective views with internal components visible.

[0072] Fig. 9 is a perspective sectional view of the case of Fig. 8, the section showing an embodiment of a locking mechanism.

[0073] Figs. 10a and 10b are perspective views of the case of Fig. 8, where: Fig. 10a shows the case in an assembled state; and Fig. 10b shows the case in an exploded view.

[0074] Figs. I la and 1 lb are rear views of the locking mechanism of the case of Fig. 8, where: Fig I la shows the locking mechanism in a mounting configuration; and Fig. 1 lb shows the locking mechanism in a locking configuration.

[0075] Figs. 1 la-1 to 1 lc-1 are detailed views of the locking mechanism of respective Figs. I la and 1 lb, where: Fig 1 la-1 and 1 lb- 1 show the locking mechanism in a mounting configuration; and Fig. 1 lc-1 shows the locking mechanism in a locking configuration.

[0076] Figs. 12a and 12b are rear views of the case of Fig. 8, where: Fig. 12a shows the case when the locking mechanism is in the mounting configuration; and Fig. 12b shows the case when the locking mechanism is in the locking configuration.3.4 BAYONET MECHANISM

[0077] Fig. 13 is a perspective view of an embodiment of a case, the case attached to a mobile device and in line for connection to a mount, where the mount is shown in both front and rear perspective views with internal components visible.

[0078] Fig. 14 is a perspective sectional view of the case of Fig. 13, the section showing an embodiment of a locking mechanism.

[0079] Figs. 15a and 15b are perspective views of the case of Fig. 13, where: Fig. 15a shows the case in an assembled state; and Fig. 15b shows the case in an exploded view.

[0080] Figs. 16a and 16b are rear views of selected components of the locking mechanism of the case of Fig. 13, where: Fig 16a shows the components of the locking mechanism in a mounting configuration; and Fig. 16b shows the components of the locking mechanism in a locking configuration.

[0081] Figs. 17a and 17b are perspective views of the selected components of the locking mechanism of respective Figs. 16a and 16b.

[0082] Figs. 18a and 18b are rear views of the case of Fig. 13, where: Fig. 18a shows the case when the locking mechanism is in the mounting configuration; and Fig. 18b shows the case when the locking mechanism is in the locking configuration.3.5 UNIVERSAL MOUNT

[0083] Figs. 19a and 19b are perspective views of embodiments of a universal mount accessory.3.6 ADAPTOR

[0084] Figs. 20a and 20b are front and reverse perspective views respectively of a mounting adaptor.

[0085] Fig 20c is an exploded view of a mounting arrangement using the adaptor of Figs 20a and 20c.3.7 ALTERNATIVE MOUNTS

[0086] Figs. 21a and 21b are perspective views of an alternative embodiment of the mount of Fig. 8; where Fig. 21a shows a perspective front view; and Fig. 21b shows a perspective rear view with internal components of the mount visible.

[0087] Figs. 22a and 22b are perspective views of an alternative embodiment of the mount of Fig. 13; where Fig. 22a shows a perspective front view; and Fig. 22b shows a perspective rear view with internal components of the mount visible.4 DETAILED DESCRIPTION

[0088] In the following detailed description, reference is made to accompanying drawings which form a part of the detailed description. The illustrative embodiments described in the detailed description, depicted in the drawings and defined in the claims, are not intended to be limiting. Other embodiments may be utilised, and other changes may be made without departing from the spirit or scope of the subject matter presented. It will be readily understood that the aspects of the present disclosure, as generally described herein and illustrated in the drawings can be arranged, substituted, combined, separated and designed in a wide variety of different configurations, all of which are contemplated in this disclosure.

[0089] The headings and subheadings used throughout this description are provided solely for organizational purposes and to facilitate ease of reference. These headings are not to be interpreted as limiting the scope of the described subject matter or the claims in any manner. The features, components, and methods described under any particular heading may be combined with features, components, and methods described under other headings, as would be understood by one of ordinary skill in the art. The described subject matter is not restricted to the specific embodiments or examples provided under any heading, and all such variations and modifications are considered within the scope of the disclosure.4.1 GENERAL ARCHITECTURE

[0090] In some forms, the present disclosure is directed to accessories and mounts for mounting mobile electronic devices to structures. The mobile device can be a mobile (cell) phone, a tablet computer, camera, etc. As exemplified in Fig. la, particular applications include mounting arrangements for mounting mobile electronic devices to motor vehicles, bicycles, motor bikes, boats and the like where a secure connection is beneficial due to loading (vibration etc) induced on the mounting arrangement. However, the disclosure is not limited to such applications and the mounting may be used in other arrangements such as in wireless charging of the mobile devices and in stationary mounts (e.g. for office or home), or for mounting other items to the device.

[0091] A feature of at least some forms of the disclosure is that a mechanical locking arrangement is provided as part of the mounting arrangement to lock the accessory to the mount. Such locking may supplement or complement other forms of retaining arrangements provided to retain the accessory to the mount, such as by virtue of magnetic engagement (such as provided by the MAGSAFE technology of Apple).

[0092] The present disclosure may also be directed to other aspects of mounting arrangements for mobile electronic devices including enhancing user experience in mounting (and / or demounting) of mobile electronic devices from mounts, enhancing the reliability of mounting by providing feedback on locking, reducing complexity in a mounting ecosystem (where the mobile device may be arranged to be mounted atmultiple locations / structures), allowing backward compatibility with other mounting arrangements, and enhancing the efficiency in wireless charging.

[0093] The component of the mounting associated with the mobile devices may be in the form of an accessory that is secured to the mobile device. In some forms, the accessory is in the form of a case which is arranged to receive the mobile electronic device. In other forms, the accessory may be in the form of an attachment which is secured to the mobile electronic device, by for example, via an adhesive or by a mechanical clamping arrangement. Such an attachment may be secured directly to the mobile electronic device or may be secured to a case secured to the mobile device.

[0094] Retention between the accessory and the mount may include a coupling which includes interfitting components and the locking arrangement includes a locking mechanism that locks the components when in the interfitting relationship. In some forms, the interfitting components form part of the locking arrangement. In some form, retention of the accessory to the mount (without locking) may be provided by forms other than mechanical interference. In some forms, that retention is by magnetic attraction (such as that provided MAGSAFE technology).

[0095] In some forms, the interfitting arrangement of the coupling includes a recess formed in a rear wall of a body of the accessory that is arranged to receive a projection on the mount. The locking mechanism may be included in or disposed on the accessory body and form a direct interference with the mount to directly prevent removal of the mount from the recess, or to prevent disengagement of existing retention features acting between the accessory and the mount. The locking elements may be in the form of tabs or lobes or combination thereof. These locking elements may be driven, or otherwise positionally controlled, by at least one rotary member. The locking mechanism may also incorporate locking actuators (or triggers) that may be designed to instigate a locking action of the locking mechanism. The locking mechanism may also include release actuators to allow release of the locking elements. In some forms, these functions to instigate locking and to release locking may be provided by separate components within the locking mechanism. In other forms, these functions are provided by the same component(s). In some forms, the trigger functions that instigate locking may be designed to occur on presenting theaccessory onto the mount. Such an arrangement may provide “automatic” locking without requiring separate manual manipulation (such as rotation of the accessory on the mount) other than placing the accessory onto, or in close proximity to, the mount. In some forms, the accessory and mount may be placed into interfitting relation so that the accessory is retained on the mount and the locking mechanism may automatically activate when the accessory and mount is in that retained condition to instigate the locking function. The automatic locking may occur by virtue of a mechanical interaction between components of the locking mechanism and the mount or within components of the locking mechanism that “triggers” the movement of the locking mechanism to lock. In some forms, the triggering of the locking mechanism could be through interactions other than direct contact such as for example by virtue of a magnetic field being triggered.

[0096] In some forms, the at least one rotary member and / or locking elements are movable between first and second positions, and a locating arrangement is provided to bias the member / elements to locate in at least one of the first and second positions. With such an arrangement, a driver arrangement may be provided to impart a biasing force to move the locking element from that position to overcome the bias of the locating arrangement.

[0097] In some forms, the locating arrangement is configured to cause the rotary member and / or locking elements to be bistable in the first and second positions. In such an arrangement, the locking elements are “at rest” in both those positions. In one such forms of that arrangement, the locating arrangement is also caused to drive movement of the rotary member / locking element to at least one of the first and second positions when biased out of the other of the first and second positions.

[0098] In some forms, the one or more locking elements are continually biased into one position, typically a locking position, and are movable from that position to allow unlocking and / or mounting. In some forms, the locking elements may be retained in another position, against the bias, by a catch and / or other mechanical interference within the mounting arrangement.

[0099] In some forms, the one or more release actuators to allow release from locking are designed to be easily user actuated and intuitive. In some forms, theserelease actuators are embodied in buttons, rings (bezels), tabs, or levers that are easily accessible to the user to actuate. In some forms, these buttons, rings, tabs, or levers present when the locking mechanism locates in the locking configuration. In some forms, the buttons, tabs, or levers retract when the locking mechanism is in a released condition to allow dismounting of the accessory from the mount and / or to allow subsequent mounting of the accessory onto the mount. In some forms, these actuators operate through the at least one rotary member.

[0100] In some forms, the accessory recess and mount may have formations (notches, lobes, keeper structures) which require precise alignment to allow the accessory to be presented onto the mount. Also, these formations may be designed to allow more than one angular position of the accessory on the mount. Typically, at least two (usually four) positions are catered for. These can be referred to as portrait, landscape (and inverted portrait and inverted landscape). To aid the alignment, aligning components may be provided within the accessory and the mount to guide the accessory into correct relative positioning with the mount. In some forms, these aligning components may be configured for mechanical interference (e.g. with guide ramp surfaces and / or dimensionally accurate spacings of the notches to receive the lobes within required tolerances). In some forms, the aligning arrangement is done through magnetic arrays located on the accessory and the mount, for example as indicated by the alignment of magnets indicated at regions 25, 29 in Fig. lb. Through the positioning of the magnets in the arrays, the accessory is caused to self-align into one of preset positions (e.g. portrait, landscape, inverted portrait, inverted landscape) as the accessory is presented on mount. Such self-aligning improves the user experience and assists in the reliability of the connection between the accessory and the mount. The magnetic force to provide the alignment of the accessory and mount may also bias the mount into the recess of the accessory and to retain the accessory and mount when so located.

[0101] In some forms, the mount is a charger adapted for wireless charging and has a transmitting coil in the projection of the mount to interact with a receiving coil in the device. In some forms, the locking mechanism is provided in a largely planar configuration and is disposed with the bounds of the depth of recess such that the mechanism does not impact significantly the thickness of the rear wall of theaccessory. In some forms, the thickness of the rear wall including the locking mechanism is within the range of 2mm to 6mm, with a lesser thickness within the bounds of the recess. In some forms, the locking member is disposed around the periphery of the rear wall such that the rear wall thickness within the bounds of the recess, i.e., at the base of the recess which separates the mobile device and a distal end of the projection of the mount which locates within the recess, may be 2mm or less. In this way this wall thickness, that may be 2mm or less, provides a spacing that allows the device and charger (transmitting coil) to be close together for improving wireless charging efficiency. The Qi v2.0 wireless charging standard of the Wireless Power Consortium (the Qi2 Standard) specifies a maximum of 2mm between charger and device in order to provide acceptable charging efficiency. The contents of the Qi2 Standard are incorporated herein by reference, and more information on the standard can be found here: www.wirelesspowerconsortium.com / standards / qi-wireless- charging / . In certain embodiments, an accessory in accordance with the present disclosure is configured to allow charging in compliance with the Qi2 Standard. The accessory may be configured so that the distance between the charger and the device is not greater than 2mm.

[0102] The maximum (i.e., overall / total) rear wall thickness outside the bounds of the recess may be up to around 5.5mm, such as around 5 mm, e.g. 4.7mm. Within this space the locking mechanism may be substantially contained.

[0103] In some forms, the accessory provides positive visual feedback on locking of the accessory to the mount. Such visual feedback can complement other feedback cues, such as haptic, or tactile feedback of locking particularly where it may be difficult for a user to hear or feel (say for example on a motorcycle where the user may be wearing a helmet and gloves). In some forms, for example where the device is a mobile phone, the visual feedback of locking is visible from the front of the device. In some forms, this visual feedback is provided by the actuators to release the locking element / latch that move from a released position to a locked position, thereby providing positive visual feedback of the locking / latching. In some forms, the actuator(s) project from at least one edge periphery of the accessory in the locked position to provide this visual feedback.

[0104] Haptic and / or tactile feedback may also be provided. As the locking mechanism includes elements that are moving into the locking configuration, the action of movement can generate small vibrations that transmit through the components of the accessory. Advantageously, these vibrations can be felt by the user, thereby providing tactile feedback to the user to indicate that the accessory has been successfully locked to the mount. For example, a tactile ‘clunk’ can be felt through the user’s hands when mounting the accessory to the mount. Similarly, when depressing the button / 1 evers to release the case from the mount, the tactile ‘clunk’ of the moving components can be felt by the user.

[0105] The mounting arrangement disclosed herein may provide an enhanced user experience. In some forms, a user may present the accessory (secured to the mobile electronic device) onto a mount and in a single motion, the accessory may self-align and on continued movement of accessory onto the mount, the accessory is retained on the mount (for example by virtue of magnetic attraction). The accessory may then be automatically locked onto the mount (by virtue of triggering of the locking mechanism associated with the accessory). In some forms, visual feedback may be provided to confirm locking. In some forms, where wireless charging is provided, once retained and / or locked, efficient charging can occur between the mount and device through the accessory. Release actuator(s) may be arranged to provide a single user action that is intuitive to unlock the locking mechanism and enable the accessory to be released from the mount. In some forms, this enhanced user experience is provided in an accessory product (e.g. mobile (cell) phone case) having a rear wall thickness of less than 6 mm

[0106] Specific embodiments of accessories and mounts for mountings mobile electronic devices is now disclosed with reference to the drawings. The illustrative embodiments described in the detailed description, depicted in the drawings and defined in the claims, are not intended to be limiting. For example, the following disclosures with reference to Figs 1 to 18b, discloses various locking mechanisms and coupling components disclosed in relation to an accessory in the form of a mobile phone case. The disclosure is applicable to other form factors of accessory, including attachments which may be fixed to device cases, or directly to mobile devices. Examples of such form factors are disclosed with reference to Figs. 19a-19b.4.2 SLIDING MECHANISM

[0107] Referring to Figs. 1 to 7b, a case 10 for a mobile device 12 is shown, whereby the mobile device can be a mobile (cell) phone, a tablet computer, etc. The case 10 as illustrated is for a mobile phone and comprises a rear wall 14 and a perimeter wall 16 defining an interior space 18 for receiving the mobile device 12 therewithin.4.2.1 General case structure

[0108] The rear wall 14 can comprise an interior surface 20 (see Fig. 3a and 3b), i.e., a surface facing the interior space 18; and a back surface 22 (see Fig. 2a), i.e., an outward facing surface facing away from the interior space 18. Referring briefly to Fig. 3a and 3b, the interior surface 20 of the rear wall 14 may comprise a closure 20a, forming at least part of the interior surface (see Fig. 3b). Alternatively, as shown in Fig. 3a, the interior surface 20 may be a continuous surface. In some forms, a cover, e.g., a microfibre sheet, can be applied over the continuous surface, over the closure 20a, or over the interior space 18, to provide a soft contact surface for the mobile device 12.4.2.2 Coupling structure

[0109] A coupling 24 can be located in the rear wall 14 of the case 10. As shown in Fig. 2a, the coupling 24 can comprise a recess 26 defined by an inside surface 28 and a coupling surface 30. The coupling surface 30 of the recess 26 can extend from the back surface 22 into the rear wall 14. The recess 26 thereby opens outwardly from the back surface 22. In an alternate form, the recess 26 can extend through the rear wall so to provide a passage therethrough.

[0110] In the form shown, the recess 26 is generally circular in shape, i.e., the coupling surface 30 defines a circular perimeter of the recess 26. The recess 26 can comprise notches 30a formed in the coupling surface 30. The notches may be arranged at quadrants of the circular recess 26 and are generally mirror-opposite about a mid-line A-A through an elongate length of the case 10 (as indicated in Fig. 5a).

[0111] As shown in Fig. 2a together with Figs. 5a to 6b, the first embodiment further comprises openings 50 formed in the coupling surface 30 of the recess 26 and configured to align with the notches 30a. The openings 50, herein referred to as tabopenings 50, open inwardly from the coupling surface 30, i.e., towards the mid-line A-A, and are orientated such that a passage formed by each of the tab openings 50 (i.e., through the case 10) is generally perpendicular to the mid-line A-A. A periphery51 of each tab opening 50 generally takes the profile of the notch, i.e., a circular profile concentric with that of the coupling surface 30.

[0112] As best shown in Fig. 5b, the recess 26 can comprise additional openings52 formed in the coupling surface 30. These additional openings, herein referred to as actuator openings 52, are arranged between the tab openings 50, i.e., about a mid-line B-B of the recess 26. The actuator openings 52 can be aligned with peripheral openings 46 provided in each of the perimeter walls 16a, 16b of the case (see Figs. 1 and 2).4.2.3 Mount structure.

[0113] The recess 26 can receive a correspondingly shaped mount 32. As shown in Fig. 2a, the mount 32 may be correspondingly shaped, i.e., circular. In some alternative forms, the mount may be differently shaped. For example, the mount may be rectangular in shape (see Figs. 21a to 22b), or otherwise polygonal in shape, e.g., cross-shaped. In the form of Fig. 2a, the mount 32 is largely received within the recess. In other forms, the portion of the mount 32 which is received within the recess may be regarded as a projection and the mount may include a wider base portion that may house the magnets or magnetic array such as that shown in Fig. lb. In the form as shown in Fig. lb, the wide base portion is in the form of radial flanges, however, the wider base portion may also extend around the entire periphery of the projecting portion of the mount. 32.

[0114] The mount 32 comprises keeper portions 32a configured to align with the notches 30a in the case coupling surface 30 for receipt therein. In this regard, the notches 30a can be shaped concentrically with the circular perimeter of the recess 26. The mount 32 can comprise a perimeter wall in the form of a mounting wall 33 and a base configured for being received against the inside surface 28 of the recess 26. The keeper portions 32a can be formed on the mounting wall and configured to extend outwardly therefrom. The mounting wall 33 and the keeper portion 32a thereby shape the mount for receipt in the recess 26: The coupling surface 30 is able to align withand receive the mounting wall 33 thereat; and the notches 30a are able to align with and receive the keeper portions 32a thereat.4.2.3.1 Keeper portions structure

[0115] The keeper portions 32a can be generally U-shaped, having a mounting edge 35 extending between two spaced legs 37. The keeper portions 32a are arranged on the mounting walls 33 such that a perimeter of the keeper portions generally follows the perimeter of the mounting wall, i.e., the keeper portions 32a extending outwardly from the mounting wall 33 such that an outer surface of the keeper portions is concentric with the circular perimeter of the mounting wall 33.4.2.3.2 Magnetic elements

[0116] The mount 32 and its keeper portions 32a can be formed from a metallic material capable of being magnetised or permitting magnetic fields to passthrough. As shown in Fig. lb, the mount 32 may comprise magnetic elements 25 configured to attract the mount to at least part of the case 10. The case 10 may comprise a magnetic elements 29 (see also Fig. 3b). In the form shown in Fig. lb, the magnetic element 29 are located outside the recess 26. In other forms, e.g., as shown in Fig. 2a and 2b, the magnetic element 29 can be located inside the recess 26.

[0117] It is noted that the magnetic arrays shown in Fig. lb are representative. For example, as shown in Figs. 1c to If, various magnetic arrays may be utilised in the case 10 for connection with the mount 32. Referring to Fig. 1c, the magnetic array consists of a first, circular magnet 29’ and a second magnetic element 29”. The first magnetic element may be a broken circular shape, i.e., ‘C’ shaped and located outside the recess 26. The second magnetic element may be shaped e.g., as elliptical, obround, rectangular, square, etc., and located to align with the break ‘b’ in the first magnetic element. Referring to Fig. Id, the magnetic array consists of a single, circular element 29 located outside the recess 26. Referring to Fig. le, the magnetic array consists of four arcuate magnetic elements located inside the recess 26 and spaced 90 degrees apart, i.e., at quadrants of the recess. Referring to Fig. If, the magnetic array consists of a similar magnetic array to that shown in Fig. le, differing in that the magnetic elements 29 are located outside the recess 26.

[0118] The arrays of magnets in the mount and case may have an initial function of aligning the case 10 and mount 32 so that the keeper portions 32a are aligned with the notches 30a. This alignment can correspond to the case 10 being presented onto the mount 32 in a portrait or landscape orientation. It may also allow for the case to be presented in an inverted portrait and inverted landscape. Such self-aligning capability aids the user experience and simplifies the mounting process. Furthermore, in some forms, the magnetic elements 25 of the mount may be configured to be attracted to the magnetic coupling 29 provided in the case 10. In this regard, the magnetic coupling 29 in the case 10 can act through the case to attract the mount 32 into the coupling 24. This magnetic attraction can pull the mount 32 into the recess 26 of the coupling 24 to and to retain those components in this engaged state in a retained position. Locating and maintaining the mount and recess in this retained position can assist with locking the coupling and the mount, as will be set forth in more detail later.4.2.4 Locking mechanism

[0119] The locking mechanism 34 of the first embodiment can comprise release actuators 36, locking elements 38, where the locking elements are in the form of tabs 38a to 38d, and rotary members in the form of link elements 44.

[0120] Referring to Figs. 2 and 3b, the locking mechanism 34 can be assembled in an interior space 40 of the rear wall 14, i.e., between the back surface 22 and the interior surface 20 (as best shown in Fig. 3b). The closure 20a is configured to cover the interior space 40 formed in the rear wall 14, within which the locking mechanism 34 can be arranged.

[0121] As best shown in Fig. 2a, the locking mechanism 34 can be configured around the perimeter of the coupling surface 30, such that the tabs 38 and actuators 36 can translate, i.e., move through, respective tab openings 50 and actuator openings 52 in the coupling surface 30. This allows the tabs 38 and actuators 36 to extend from the interior space 40 into the recess 26 of the coupling 24.

[0122] In the form shown, the locking mechanism 34 comprises two actuators 36 configured with respect to four tabs 38a-38d. It is noted that more or less actuators and / or tabs may be utilised in the locking mechanism. The link elements 44 located between the tabs 38 and the actuators 36. For example, two tabs 38a, 38b are spacedfrom a single actuator 36 by link elements 44. Accordingly, two link elements 44 are provided between each actuator 36 and their respective tabs 38a, 38b, 38c, 38d.4.2.4.1 Tab structure

[0123] Referring to Fig. 5a and 5b, the tabs are located with respect to the coupling surface 30 of the recess 26 such that an inward end 48 of each tab 38a-38d locates towards the coupling surface 30. In the form shown, the inward ends 48 take the form of locking ends 48, being shaped to generally match the circular perimeter of the recess 26. In other words, a diameter of the circular curvature of the locking ends 48, when in use, matches, i.e., is generally the same as, a diameter of the coupling surface 30.

[0124] In the form shown, the tabs 38a-38d are arranged with respect to the tab openings 50. In this regard, the tabs 38a-38d are received in tab openings 50 such that the tabs are opposingly located about the coupling surface 30 of the recess 26. The tabs 38a-38d in these locations are arranged such that, the tabs 38a, 38b are generally mirror-opposite to the tabs 38c, 38d, i.e., about a mid-line A-A through an elongate length of the case 10.

[0125] As shown in Figs 5a and 5b, passage defined by the tab openings 50 provide a path for the tabs 38a-38d to translate, i.e., slide, generally perpendicular to the mid-line A-A. Accordingly, the tabs 38a-38d can translate, i.e., slide laterally through their respective openings 50, i.e., across the rear wall 14 of the case, and towards and away from the mid-line A-A.

[0126] The in-use tabs 38a-38d can be positioned within the tab openings 50 such that the locking ends 48 generally align with the opening periphery 51. When the in- use tabs 38a-38d are translated through the tab openings 50, the locking end 48 can extend into the recess 26 such that the curvature of the locking end 48 is generally concentric with the coupling surfaces 30.

[0127] Each tab 38a-38d further comprises outward ends 54 arranged, in-use, to face the opposing elongate perimeter walls 16a, 16b of the case. As shown in Fig. 2b, the outward ends 54 of tabs 38a, 38b face the perimeter wall 16b and the outward ends 54 of tabs 38c,38d face the perimeter wall 16a.4.2.4.2 A ctuator structure

[0128] Referring now to Fig. 4, the actuators 36 each comprise an inward end in the form of a driving end 56, arranged, in-use, to locate towards the coupling surface 30. As shown in Fig. 4, when the mount 32 is disposed within the recess 26, the driving end 56 is arranged, in-use, towards the mounting wall 33 of the mount 32.

[0129] The driving end 56 includes a ramped edge 58 for guiding contact with the mount 32, as set forth in more detail later. The driving end 56 further comprises an inward edge 57 configured with respect to the ramped edge 58 such that the driving end 56 forms a flexible clip. The clip can be sized for engaging with, i.e., clipping onto, the periphery 51 of the actuator openings 52, by flexing in a direction out of the plane of the rear wall 14. As set forth in more detail later, this clipping arrangement provides a latching arrangement for latching the locking mechanism 34 in an unlocked condition and for triggering the locking mechanism to lock on location of the mount 32 within the recess 26 by release of the clip. As such, the actuators 36 are provided to not only allow manual unlocking of the locking mechanism 34, but also for triggering the locking mechanism.

[0130] An opposing end of each actuator 36, i.e., an end opposite the driving end, is configured as a button 60. The button 60 of each actuator is arranged, in-use, to locate towards respective elongate perimeter walls 16a, 16b, as best shown in Figs. 5a and 5b.

[0131] The actuators 36 are located at, i.e., received in, the actuator openings 52 formed in the coupling surface 30. The actuators 36 can translate laterally through actuator openings 52 along the mid-line B-B of the coupling 24. The two actuators 36 are opposingly located about the coupling surface 30 of the recess 26, i.e., about either side of the case 10, such that the driving ends 56 of the actuators 36 can each be translated through the actuator openings and into the recess 26. The actuators 36 thereby translate, i.e., slide generally perpendicular to the mid-line A-A, through their respective openings and across the rear wall 14 of the case, towards and away from the mid-line A-A.

[0132] In-use, when actuators 36 are laterally translated, as the driving ends 56 translate through the respective actuator openings 52, the buttons 60 can translatethrough the peripheral openings 46 in the perimeter walls 16a, 16b. In the form shown, a terminal end 61 of the button is arranged, in-use, to locate outside the case 10, whereby translation of the actuator 36 through the openings 50, 52 of the case 10 moves the terminal end 61 towards, or away from, the perimeter walls 16a, 16b.

[0133] In the form best shown in Figs. 4, 5a and 5b, the actuators 36 are generally T-shaped, whereby the buttons 60 are larger than the driving ends 56. The actuator openings 52 and the peripheral openings 46 are each sized to receive their respective driving ends 56 and buttons 60. Accordingly, the actuator openings 52 and the peripheral openings 46 act to at least partly guide the lateral movement of the buttons through the rear wall 14 of the case 10.

[0134] As best shown in Fig. 5b, junctures 62 formed between the driving end 56 and the button 60 form a contact surface 64 on each of the actuators 36 that can be used for controlling the lateral movement of the actuator 36 through the openings 50,52.

[0135] The actuators 36 can comprise guides 66 that define a maximum translation, i.e., range of lateral movement, the actuators 36 can take through the case. The case can comprise tracks 66a for receiving the guides 66 so as to guide its movement through the case. As shown in Fig. 5a, the guides 66 set a first position of the actuators 36, locating the terminal end 61 of the button to generally align with the perimeter walls 16a, 16b (see Fig. 6a). As shown in Fig. 5b, the guides 66 set a second position of the actuators 36, having a spacing of ‘Tl’ between the terminal end 61 of the button and the perimeter walls 16a, 16b (see Fig. 6b).4.2.4.3 Rotary Link element structure

[0136] The contacting surfaces 64 provide a contact point for the link elements 44 at the actuators 36. The link elements 44 of the locking mechanism 34, in-use, can extend between the contacting surfaces 64 and the tabs 38a-38d. Accordingly, the locking mechanism comprises four link elements 44: at one side of the case, i.e., near a first of the perimeter walls 16a, two link elements 44 located between the actuator 36 and the tabs 38c, 38d; and at an opposite side of the case, i.e., at a second of the perimeter walls 16b, two link elements 44 located between the actuator 36 and the tabs 38a, 38b.

[0137] As best shown in Fig. 4, the link elements 44 can comprise a central portion 68 and opposing flanges 70a, 70b extending from the central portion 68. The link elements 44 can be rotatably connected to the case 10 about the central portion 68, and positioned such that the opposing flanges 70a, 70b moveably contact the actuators 36 and the tabs 38a-38d.

[0138] The flanges 70a, 70b are sized to extend from the central portion 68 by different lengths. That is, a first of the flanges 70a is provided with a longer length than a second of the flanges 70b. In the form shown, this allows the central portion of the link elements 44 to be spaced closer to the tab elements 38a-38d than the actuators 36. Advantageously, this can allow a translation, i.e., a displacement, of the flange 70a to differ from a translation of the flange 70b, when the link element 44 rotates about the central portion 68. In effect, this provides a kind of ‘ratio’ of displacement between flange 70a and flange 70b. The further effects of this ‘ratio’ are set forth in more detail later.

[0139] It should be appreciated that the lengths of the flanges 70a, 70b may change, and in turn, alter the ‘ratio’ of displacement of the flanges. For example, the flanges may be of equal lengths, such that the central portion 68 is spaced equidistant from the actuators and tabs, in-use. When a link element configured in this way is pivoted about the central portion, ends (i.e., distal ends) of the flanges 70a, 70b would each be displaced by the same amount.4.2.4.4 Link element, tab and actuator relationship

[0140] The flanges 70a, 70b extend from the central portion 68 such that the end of the first flange 70a contacts the contacting surfaces 64 of the actuator juncture 62; and at least part of the second flange 70b locates within a groove 72 formed in the outward ends 54 of the tabs 38a-38d.

[0141] The link elements 44 thereby contact between the actuators 36 and the tabs 38a-38d such that, in use, lateral movement of the actuators can be transferred to the tabs, and conversely, lateral movement of the tabs can be transferred to the actuators.

[0142] For example, moving the actuators laterally inwards, i.e., towards the midline A-A of the case, will push the first flanges 70a of the link elements 44 in the samedirection, i.e., towards the mid-line of the case. During this motion of the flanges 70a, the link elements 44 will rotate about their central portions 68 such that the opposing, second flanges 70b will move in an opposite direction, i.e., away from the mid-line of the case. The second flanges 70b are positioned within a groove 72 of the tabs such that, as the flanges 70b move away from the mid-line, the tabs are also moved away, i.e., outwardly, and towards respective perimeter walls 16a, 16b of the case.

[0143] In effect, the link elements 44 act to reverse a direction of the lateral movement of the tab elements 38a-38d and the actuators 36. That is, an outward movement of the actuators is transferred by the link elements into an inward movement of the tab elements; conversely, an outward movement of the tab elements is transferred by the link elements into an inward movement of the actuators.4.2.4.5 Locking mechanism operation

[0144] The translation of the locking mechanism elements, i.e., of the actuators 36, link elements 44 and tabs 38a-38d is shown in Figs. 5a and 5b. Referring to Fig. 5a, the locking mechanism elements are shown in a mounting (or released) configuration of the locking mechanism. Referring to Fig. 5b, the locking mechanism elements are shown in a locking configuration of the locking mechanism. The tabs 38a-38d and actuators 36 can move between the locking and mounting configurations by translating in a lateral direction, as set forth above.

[0145] The tabs 38a-38d translate, i.e., slide laterally towards, and away from the mid-line A-A, between the opposing, elongate perimeter walls 16a, 16b. As shown in Fig. 5a, when the locking mechanism is in the mounting configuration, the outward ends 54 of the tabs are located towards, i.e., close to or at, the perimeter walls 16a, 16b of the case 10. In this configuration, i.e., the mounting configuration, the tabs 38a-38d are located at an outer-most position of their range of lateral movement.

[0146] Referring to Fig. 5b for comparison, the locking mechanism is shown in the locking configuration, where the tabs are spaced from the perimeter walls 16a, 16b by a distance ‘S’, i.e., being closer to the mid-line A-A than when located in the mounting configuration. In this configuration, i.e., the locking configuration, the tabs 38a-38d are located at an inner-most position of their range of lateral movement.

[0147] As set forth previously, the actuators 36 are located about the centre-line B-B through the circular profile of the recess 26. Accordingly, the actuators are configured to translate, i.e., slide laterally along the centre-line B-B, in a similar manner to tabs, to move towards, and away from, the mid-line A-A.

[0148] As shown in Fig. 5a, when the locking mechanism is in the mounting configuration, the driving ends 56 of the actuators are located inwardly of the coupling surface 30, i.e., closer to the mid-line A-A than the coupling surface 30. Referring briefly to Fig. 7a, showing the actuator 36 in the mounting configuration, the actuators 36 in the mounting configuration are positioned such that the terminal ends 61 of the buttons 60 are generally aligned, i.e., flush with the perimeter walls 16a, 16b of the case 10. In this configuration, i.e., the mounting configuration, the actuators 36 are located at an inner-most position of their range of lateral movement.

[0149] Referring to Figs. 6a and 7a, when the actuator 36 is located in its innermost position, the driving end 56 is positioned relative to the actuator opening 52, such that the inward edge 57 of the driving end engages with, i.e., clipping over, the periphery 51 of the openings 52. This clipping action occurs by flexing of the driving end 56 so as to rotate in a direction out of the plane of the rear wall 14. In this clipped over position of the actuator 36, the driving end, i.e., the clip, is held against the periphery of the opening such that the tabs 38a-38d are also held, i.e., latched, in the mounting configuration, i.e., at their outer-most position of lateral movement.

[0150] Referring to Figs. 5b, 6b and 7b for comparison (i.e., to Figs. 5a, 6a and 7a), the locking mechanism is shown in the locking configuration, where the driving ends 56 of the actuators are located towards, i.e., close to or near, the coupling surface 30. In other words, the actuators 36 in the locking configuration are positioned such that the terminal ends 61 of the buttons 60 are located at a distance ‘Tl’ from the perimeter walls 16a, 16b, i.e., spaced further from the perimeter walls than when located in the mounting configuration (see Fig. 6b). In this configuration, i.e., the locking configuration, the actuators 36 are located at an outer-most position of their range of lateral movement.

[0151] As set forth in more detail below, the locking mechanism is configured to move between the mounting configuration and the locking configuration shownrespectively in Figs. 5a and 5b. That is, the locking mechanism can be translated from the mounting configuration to the locking configuration, and from the locking configuration to the mounting configuration.4.2.4.6 Biasing elements: Springs

[0152] The tabs 38a, 38b and 38c, 38d are biased in relation to respective perimeter walls 16b and 16a by biasing elements 42. These biasing elements provide the drive for movement of the locking mechanism 34 from the mounting configuration to the locking configuration. In the form shown, the biasing elements are springs 42, e.g., compression springs. The springs 42 are located between the outward ends 54 of the tabs and the perimeter walls 16a, 16b. As best shown in Fig. 4, the springs 42 can be received in a cut-away 53 formed in the outward ends 54 of the tabs. The springs can be at least partially located in the cut-away 53 by pins 55 configured to extend through at least a portion of the springs 42 when received in the cut-away 53.

[0153] The springs act to bias, i.e., urge the tabs 38a, 38b and 38c, 38d towards the mid-line A-A. That is, the springs 42 are configured to bias the tabs away from the perimeter walls 16a, 16b, towards the locking configuration, i.e., whereby the springs would extend towards their ‘equilibrium’ or a ‘resting position’.

[0154] When the locking mechanism is configured in the mounting configuration, the tabs 38a-38d are held against their respective biased springs by the actuator 36. In particular, and as shown in Fig. 7a, the inward edge 57, i.e., the clip of the actuator 36, is positioned to clip over the periphery 51 of the opening 52, to latch both the actuator and its respective tabs in the mounting configuration in a catch arrangement.

[0155] The actuators 36 thereby locate the tabs at a position where the locking ends 48 are not within the recess 26. In other words, the locking ends 48 of each tab 38a-38d are held by the actuators 36 in a location at, or outside of, the perimeter defined by the coupling surface 30 thereby latching the locking mechanism in its mounting configuration. In this position of the tabs, when the mount 32 is received in the recess 26, the locking ends 48 are positioned away from the recess 26 so they do not interfere with the keeper portions 32a of the mount 32 entering the respective notches 30a of the recess 26.

[0156] Conversely, when the locking mechanism translates from the mounting configuration (Figs. 5a, 6a and 7a) to the locking configuration (Figs. 5b, 6b and 7b), i.e., when the actuators 36 are translated away from the mid-line A-A, the tab elements are translated towards the mid-line by the bias of the springs 42 moving into their ‘equilibrium’ or a ‘resting position’.4.2.4. 7 Mount to case attachment

[0157] Referring now to Figs. 5a-5b, 6a-6b and 7a- 7b, a process of attaching the case 10 to the mount 32 is described. Referring firstly to Fig. 5a, 6a and 7a, showing the locking mechanism in the mounting configuration, the tabs 38a-38d are held in their position towards the perimeter walls 16a, 16b by the respective actuators 36 clipped against the periphery 51 of the openings 52. As shown in Fig. 5a, this configuration of the locking mechanism positions the locking ends 48 of the tabs outside the recess 26, i.e., substantially concealed within the case 10.

[0158] In the mounting configuration, the driving ends 56 of the actuators 36 are located inwards of the coupling surface 30, i.e., extending into the recess. When the mount 32 is moved into the recess 26, the driving ends are position such that the mount 32 contacts the ramped edges 58 of respective driving ends 56 to drive, i.e., deflect the driving ends 56 towards the inside surface 28 of the recess 26, thus cause the driving rend to rotate out of the plane of the rear wall 14. This deflection of the driving ends disengages the inward edges 57 from the opening peripheries 51, allowing the actuators 36 to be moved laterally outward from the recess 26. As such, the ramped edges 58 of the respective driving ends 56 act as triggers for the locking mechanism 34, which are engaged by the mount to unlatch the actuators 36.

[0159] As the mount 32 moves into the recess 26 to trigger the locking mechanism by releasing and displacing the actuator 36 outwardly, the springs 42 are allowed to extend towards their ‘resting position’, driving the tabs inwardly towards the mid-line so as to engage with the keeper portions 32a of the mount 32. The link elements 44 are rotated by the lateral movement of the tabs 38a-38d to translate the button 60 outwardly away from the perimeter walls 16a, 16b. As shown in Figs. 6b and 7b, this movement of the actuators positions the buttons 60 to protrude from the case 10 by a distance ‘Tl’. In this position, i.e., in the locking configuration, the driving ends 56 of the actuators 36 are concealed within the case 10.

[0160] Once the mount 32 is received within the recess, i.e., in contact with the inside surface 28 of the recess 26, the locking mechanism is configured in the locking configuration, i.e., whereby the buttons 60 protrude from the case 10. The mount 32 is retained in this position by the engagement of the tabs 38a-38d with the keeper portions 32a. The bias of the springs 42 urge the locking ends 48 of the tabs to maintain a locking contact with the keeper portions 32a. Accordingly, the buttons 60 are held outwardly away from the perimeter walls, i.e., projecting therefrom while the mount 32 is received in the recess 26.

[0161] Locating the mount 32 into the recess 26 may be facilitated by the magnet attraction between the magnet(s) 29 in the case and the magnets 25 in the mount 32. As detailed above, this magnetic attraction may assist in aligning the recess and mount correctly, and may also draw the mount into the recess, triggering the locking mechanism) and also retaining the case 10 on the mount independently of the locking mechanism 34. As such, the locking mechanism is arranged to lock the case to the mount in this retained configuration.4.2.4.8 Mount to case release

[0162] In order to remove, i.e., disengage the case 10 from the mount 32, the actuators 36 can be laterally translated, e.g., by a user contacting and depressing the buttons 60. This depression of the buttons 60 moves the actuators 36 inwardly towards the mid-line A-A, so as to rotate the link elements 44, translating the tabs 38a-38d outwardly, away from their engagement with the mount. This allows the case 10 to be pulled from the mount 32 against the attractive force of the magnets in the case and mount. The case 10 can then be removed from the mount 32. During the depression of the buttons 60, the ramped edges 58 of the driving ends 56 translate into the recess 26 such that the inward edges 57 clip over the periphery 51 of the openings 52. The actuators 36 are thereby latched, i.e., held in position in the recess 26 and against the coupling wall 30, until the mount 32 is moved into the recess again.4.2.4.9 A ctuator configuration

[0163] The actuators 36 may be configured, e.g., calibrated with respect to the link elements 44 and the tabs 38a-38d such that translation of driving end 56 into the recess 26 is sufficient to move the tabs 38a-38d away from the keeper portions 32a, so as to disengage therefrom.

[0164] The link elements 44 can be configured, as set forth previously, with different flange lengths, to control a magnitude of displacement of the tabs relative to the actuators. That is, the ‘ratio’ of the flange lengths controls how much the tabs displace inwardly / outwardly relative to how much the actuators displace outwardly / inwardly .

[0165] Accordingly, the lengths of the flanges (i.e., a position at which the central portion pivots relative to the tabs and actuators) can be adjusted to control the distance by which the tabs travel to engage / di sengage with the mount 32, based on the magnitude of displacement of the actuators.

[0166] In the particular form shown in Figs. 5a and 5b, providing the first flange 70a with a longer length than the second flange 70b, results in the actuator having a larger range of movement, i.e., travel, than the tabs 38a-38d. In effect, this allows the button to be spaced at (i.e., displaced by) a relatively larger distance ‘Tl’, i.e., making the buttons 60 more noticeable to a user. In-use, when the user depresses the buttons 60, although the actuators 36 travel through a relatively large range of motion, the tabs only move through a relatively smaller range of motion. Advantageously, this minimises the interior space required for the tabs to move laterally within the rear wall 14 of the case 10.4.2.5 Advantages

[0167] The mounting arrangement utilising the case 10 and mount 32 provides for mechanical locking between the case and mount (through the interaction of the tabs 38a-38d in the locking mechanism 34 and the keeper portions 32a on the mount 32) with such locking occurring on locating the case onto the mount. Guidance of the case onto the mount is facilitated by magnetic arrays 25, and 29. As such, the mounting arrangement provides a simple and intuitive user experience. A user may present the case 10 or other accessory (secured to the mobile electronic device) onto the mount 32 and in a single motion, the accessory may self-align and on continued movement of case onto the mount, the driving end 56 of the actuators 36 are engaged and unclipped causing triggering of the locking mechanism for the case to be locked onto the mount (by virtue of the bias provided under springs 42 driving the tabs 38a- 38d into engagement with the keeper portions 32a). Visual feedback from the protruding buttons 60 confirm locking.

[0168] As set forth above, in the form shown, the buttons 60 of the actuators 36 only protrude from the perimeter walls 16a, 16b when the mount 32 has been coupled to the case 10, i.e., when the locking mechanism is in the locking configuration. Advantageously, the protrusion of the buttons 60 from the case provide a visual indication to a user when the case 10 is in a ‘locked’ state, i.e., in the locking configuration, and when the case 10 is in an ‘unlocked’ state i.e., in the mounting configuration.

[0169] Moreover, as the actuators 36 slide outwardly when moving into the locking configuration, the action of sliding outwardly can generate small vibrations that transmit through the components of the case 10. Advantageously, these vibrations can be felt by the user, thereby providing tactile feedback to the user to indicate that the case has been successfully locked to the mount.

[0170] Presenting the buttons 60 to the user only when the locking mechanism is configured to be unlocked, i.e., in the locking configuration, minimises unnecessary movement, i.e., actuation, of the locking mechanism as compared to ‘spring action’ buttons that allow a locking mechanism to be actuated by the buttons at any time, i.e., in locked and unlocked conditions. In other words, the buttons are always active, and able to be depressed at any time. Conversely, the locking mechanism of the present disclosure restricts movement of the actuators 36, only permitting their depression, i.e., movement, when the case 10 is secured to the mount 32.

[0171] Configuring the buttons 60 to protrude from the case 10 in this way can clearly indicate to the user where the buttons are located on the case. That is, the buttons 60 extend from the perimeter walls 16a, 16b of the case so that, when the user is looking at the phone / case, the buttons 60 can be readily seen, e.g., without the user needing to ‘feel’ for the buttons.

[0172] When the case is not secured to the mount 32, the buttons 60 are substantially concealed within the case 10. Advantageously, this can prevent the buttons 60 from being ‘snagged’ or damaged by contact with other objects. For example, if the case 10 (and mobile device) are dropped from a height onto ground, the substantially concealed buttons 60 are unlikely to contact the ground in a manner than damages the buttons. Conversely, if the buttons 60 were to protrude from thecase when not secured to the mount, dropping the case from a height would likely results in a forceful contact between the buttons 60 and the ground, i.e., forcing the buttons inwardly of the case. This may damage the actuators 36, and potentially damage the interfacing elements, i.e., the link elements 44 and the tab elements 38a- 38d.

[0173] It is to be appreciated, the locking mechanism 34 could be modified that the actuators 34 do not protrude from the case (or other accessory) when in the locking configuration. Rather in such an embodiment, the actuators may be caused to by recessed when in the mounting configuration such that they may be generally flush with the case when in the locking configuration. Alternatively, by incorporating a lost motion action within the actuator, the actuator may be designed to always return to the same position in both its mounting and locked configuration. In such an arrangement, depression of the actuators when the locking mechanism is in the mounting configuration does not trigger the locking mechanism so that the actuators are only active when depressed when the locking mechanism is in the locked configuration. It is to be appreciated that such an arrangement could be utilised in any of the embodiments disclosed herein.4.3 ROTATION MECHANISM

[0174] Referring now to Figs. 8 to 12, a second embodiment of the case 100 is disclosed. The second embodiment of the case 100 can be configured for a mobile device 12, as set forth in relation to the first embodiment of the case 10. For example, the case 100 can comprise a rear wall 114 and a perimeter wall 116 defining an interior space 118 for receiving the mobile device therewithin.

[0175] The rear wall 114 can comprise an interior surface 120 (see Fig. 10a and 10b), and a back surface 122 (see Fig. 8). The interior surface may be formed as a fascia plate 120 configured to substantially conceal the coupling 124, as set forth below.

[0176] Referring to Fig. 10b, the coupling 124 of the second embodiment of the case can be located in the rear wall 114 of the case 100. The coupling 124 of the second embodiment differs from the first embodiment, in that the coupling 124 itself forms at least part of the back surface 122 of the rear wall. In this regard, and asshown in Figs. 8 and 10b, the coupling 124 can comprise a recess 126 defined by a base plate 170 having an inside surface 128 and a coupling surface 130. The coupling surface 130 can extend from the inside surface 128 outwardly, towards the back surface 122 of the rear wall 114. The recess 126 thereby opens outwardly from the back surface 122.

[0177] The recess 126 can be shaped to receive a mount 132 therein. In the second embodiment, the recess 126 is generally circular in shape and comprises an array of notches 130a formed in the coupling surface 130. The notches 130a can be shaped concentrically with the circular perimeter of the recess 126 and be sized to receive correspondingly shaped keeper portions 132a of the mount 132.4.3.1 Mount structure

[0178] The mount 132 comprises keeper portions 132a configured to align with the notches 130a for receipt therein. The keeper portions 132a of the second embodiment differ from the first embodiment in that the keeper portions 132a are formed as discrete protrusions, i.e., compared to the U-shaped keeper portions of the first embodiment. Similar to the first embodiment, the mount 132 can comprise a mounting wall 133 and an end surface 139 configured for being received against the inside surface 128 of the recess 126. The keeper portions 132a can be formed on the mounting wall and configured to extend outwardly therefrom. The mounting wall 133 and the keeper portions 132a thereby shape the mount for receipt in the recess 126: the coupling surface 130 able to align with and receive the mounting wall 133 thereat; and the notches 130a able to align with and receive the keeper portions 132a thereat.4.3.1.1 Keeper portions structure

[0179] The keeper portions 132a of the second embodiment can comprise a ramped surface 135, configured to ramp, i.e., angle away from the base of the mount, and extend along the mounting wall 133. The keeper portions 132a are arranged on the mounting walls 133 such that a perimeter of the keeper portions generally follows the perimeter of the mounting wall 133. The ramped surfaces 135 of the keeper portions 132a can assist connecting the mount 132 to the case, as set forth in more detail later.4.3.1.2 Magnetic elements

[0180] The mount 132 and its keeper portions 132a can be formed from a metallic material capable of being magnetised or permitting magnetic fields to passthrough. As shown in Fig. 8, the mount 132 may comprise magnetic elements 125 configured to attract the mount to at least part of the case 100. For example, the case 100 may comprise a magnetic coupling array 129 (see Fig. 10b) The arrays of magnets in the mount and case may have an initial function of aligning the case 100 and mount 132 so that the keeper portions 132a are aligned with the notches 130a. This alignment can correspond to the case 100 being presented onto the mount 132 in a portrait or landscape orientation. It may also allow for the case to be presented in an inverted portrait and inverted landscape. Such self-aligning capability aids the user experience and simplifies the mounting process. Furthermore, in some forms, the magnetic elements 125 of the mount may be configured to be attracted to the magnetic coupling 129 provided in the case 100. In this regard, the magnetic coupling 129 in the case 100 can act through the case to attract the mount 132 into the coupling 124. This magnetic attraction can pull the mount 132 into the recess 126 of the coupling 124 to retain the mount and case in a retained position by virtue of this magnetic attraction and to be in position for locking of the case to the mount under the locking mechanism 134, as will be set forth in more detail later.4.3.1.3 Alternative mounts

[0181] In some alternative forms, the mount of the second embodiment may be differently shaped. Referring briefly to Figs. 21a and 21b, a variation of the mount 532 is shown, where the mount is rectangular in shape. Apart from being differently shaped, the rectangular mount 532 differs from the circular mount 132 in that the rectangular mount is not configured for wireless charging of a mobile device. The magnetic elements 125 provided in the rectangular mount 532 act to align the case and mount in particular orientations and may attract the mount into the recess. The mount 532 comprises the same features as the circular mount 132, i.e., having keeper portions 532a extending from mounting walls 533.4.3.1.4 Alternative magnetic elements

[0182] In further alternative forms, the case 100 and mount 132 may have their respective magnetic arrays (125, 129) provided outside the recess 126 such as shownin arrangements as shown in Figs lb to 1 above. In such an arrangement, the magnet attraction between the mount and case can be used to align those elements for mounting together, draw those elements into connection and to retain the case to the mount independently of locking of the case 100 to the mount 132 under operation of the locking mechanism 134.4.3.2 Locking mechanism

[0183] The coupling 124 can comprise the locking mechanism 134. The locking mechanism 134 of the second embodiment primarily differs from the first embodiment in that locking elements 138a (see Fig. I la) are configured to rotate, rather than laterally slide. In this regard, the locking elements of the second embodiment are formed on a rotary member in the form of a locking ring 138 comprising eight ‘teeth’, i.e., rotation elements 138a. It is noted that, while eight rotation elements are provided in the second embodiment, more or less rotation elements can be utilised. Also, while a closed ring 138 is disclosed, it is to be appreciated that the ring may be open (being a ring segment), or be formed of multiple segments that act in unison.

[0184] Referring to Figs. 9 and 10b, the locking mechanism 134 can be assembled in an interior space 140 of the rear wall 114, i.e., between the back surface 122 and the interior surface 120 (as best shown in Fig. 10b). The interior surface 120 is configured, i.e., as a fascia, to cover the interior space 140 formed in the rear wall 114, within which the locking mechanism 134 can be arranged.4.3.2.1 Rotation element structure

[0185] As best shown in Fig. 9, the locking mechanism 134 is configured such that rotation elements 138a, i.e., of the locking ring 138 can move about the perimeter of the coupling surface 130. As set forth in more detail later, this allows the locking ring 138 to rotate about the coupling surface 130 such that the rotation elements 138a can be moved to at least partially cover, i.e., move across the notches 130a formed in the recess 126.

[0186] In the form shown, the locking mechanism 134 comprises two actuators 136 configured with respect to the locking ring 138. The locking mechanism 134 of the second embodiment further comprises link elements 144 formed as part of theactuators 136 and configured to contact, i.e., interface with the locking ring 138, as set forth in more detail later. The link elements are best shown in Fig. 10b. In contrast to the earlier embodiment, the actuators 136 are provided to allow release (unlocking) of the locking mechanism, and are not incorporated as part of the triggering mechanism to instigate locking.4.3.2.2 Tray structure

[0187] As shown in Fig. 10b, the locking ring 138 and actuators 136 are configured to assemble together in a tray 172. The tray 172 is shaped to receive the locking ring 138 and actuators 136 therein to guide movement of the locking ring 138 and actuators 136. The tray comprises an arrangement of stepped recesses for receiving the locking ring and actuators, and guiding their respective movement therein. The stepped recesses can include dead-stops 172a, 172b (see Fig. 9) for controlling a range of rotational movement of the locking ring, as set forth in more detail later.

[0188] The tray 172 can be positioned within the case 100 such that, in-use, at least part of the tray generally aligns with the back surface 122 of the case. In this regard, the locking ring is at least partially concealed, i.e., contained by the tray 172. Advantageously, this location of the tray can cover, i.e., shield the locking ring 138, e.g., to protect the locking ring.

[0189] The tray 172 can be located in the rear wall 114 of the case by a spacer 174. The spacer 174 acts to align the tray 172, and therefore, the locking mechanism 134 with the magnetic coupling 129. In other words, the spacer 174 positions the locking mechanism relative to the perimeter walls of the case 100.

[0190] As best shown in Fig. I la, the notches 130a of the recess 126 and the rotation elements 138a of the locking ring 138 are arranged with respect to quadrants of the circular recess 126. That is, the rotation elements and the notches are arranged to be generally in a mirror-opposite relation about mid-lines A-A and B-B through the coupling 134.4.3.2.3 A ctuator structure

[0191] Referring again to Fig. 1 la, the actuators 136 each comprise inward ends 156 arranged, in-use, to locate towards the mid-line A-A. Each actuator comprises two inward ends 156, each of the inward ends comprising one link element 144 for contact with the locking ring 138, as set forth in more detail later. An opposing end of each actuator 136, i.e., an end opposing the inwards ends 156, is configured as a button 160. The buttons 160 are located centrally of the two inward ends 156, and is arranged, in-use, to locate towards a respective elongate perimeter wall 116a, 116b.

[0192] The two actuators 136 are opposingly located about the coupling surface 130 of the recess 126, i.e., about either side of the case 100, along the mid-line B-B of the coupling 124. The actuators 136 can translate laterally within the case 100 so as to translate along mid-line B-B and through peripheral openings 146 provided in each of the perimeter walls 116a, 116b.

[0193] In the form shown, a terminal end 161of the button is arranged to locate outside the case 100, whereby the lateral translation of the actuator 136 through the peripheral openings 146 moves the terminal ends 161 towards, or away from, the perimeter walls 116a, 116b.

[0194] In the form shown, the actuators 136 are generally T-shaped, whereby the buttons 160 are smaller than the inward ends 156. The peripheral openings 146 are shaped to receive the buttons 160 therethrough. Accordingly, the peripheral openings 146 act to at least partly guide the lateral movement of the actuators 136 through the rear wall 114 of the case 100.4.3.2.4 Locking ring structure

[0195] Referring now to the locking ring 138, as best shown in Fig. 9, opposing slots 162 can be formed in the locking ring 138 configured for receiving the link elements 144 therethrough.4.3.2.4.1 Slot structure

[0196] The slots comprise end points 166a, 166b, i.e., opposing ends of the slots. An orientation and location of the slots 162 on the locking ring 138 is determined by the location of the end points 166a, 166b. For example, as shown in Fig. 9, a locationof outer end points 166a is offset from a location of inner end points 166b, such that the slots are angled outwardly from the mid-lines A- A, B-B.

[0197] The slots 162 are shaped for controlling a lateral movement of the actuators 136 (via the link elements 144) between the end points 166a, 166b. The lateral translation of the actuators 136 can drive, i.e., control (via the link elements 144) a corresponding rotation of the locking ring about the recess 126.

[0198] The orientation of the slots 162 define a path along which the link elements 144 can travel when moving, i.e., translating between the end points 166a, 166b. In the form shown, the path is arcuate, allowing the lateral translation of the actuators to correspond with the rotation of the locking ring.4.3.2.4.2 Rotational and lateral translation

[0199] The translation of the link elements 144 between the end points 166a, 166b can be controlled by the dead stop points 172a, 172b of the tray 172. The dead stop points 172a, 172b thereby control a range of rotation of the locking ring, and in turn, a range of lateral movement of the actuators. A first dead stop 172a provides a first stopping point of rotation, and hence sets a first position of the actuators 136 (as shown in Fig. I la and 12a). In this position, the terminal ends 161 of the buttons 160 are generally aligned with the perimeter walls 116a, 116b of the case 10. A second dead stop 172b provides a second stopping point of rotation, and hence, sets a second position of the actuators 136 as shown in Fig. 1 lb and 12b). In this position, a spacing of ‘Tl’ is provided between the terminal end 161 of the button 160 and the perimeter walls 116a, 116b.

[0200] The orientation of the slots 162, e.g., its angle relative to the mid-line A- A, B-B, can control a magnitude of rotation of the locking ring relative to a magnitude of lateral translation of the actuators. That is, the slot 162 provides a kind of ‘ratio’ of displacement between the locking ring and the actuators. The effects of this ‘ratio’ are set forth in more detail later.

[0201] The link elements 144 contact between the actuators 136 and the locking ring 138 such that, in use, a lateral movement of the actuators can be transferred to the rotation of the locking ring, and conversely, a rotational movement of the locking ring can be transferred to a lateral translation of the actuators.

[0202] For example, moving the actuators 136 laterally inwards, i.e., towards the mid-line A- A of the case 100, will push the link elements 144 in the same direction, i.e., moving the link elements from the outer end points 166a of the slot 162 to the inner end points 166b. During this motion of the link elements 144, the slot 162 of the locking ring 138 will slide about the link element 144 such that the locking ring 138 will rotate.4.3.2.5 Locking mechanism operation

[0203] This movement of the locking mechanism elements, i.e., of the actuators 136 and their link elements 144 and the locking ring 138 is shown in Figs. I la and 1 lb. Referring to Fig. I la, the locking mechanism elements are shown in a mounting configuration of the locking mechanism. Referring to Fig. 1 lb, the locking mechanism elements are shown in a locking configuration of the locking mechanism. The locking ring 138 and actuators 136 can move between the locking and mounting configurations by moving both rotationally and laterally, as set forth above.

[0204] As shown in Fig. I la, when the locking mechanism is in the mounting configuration, the rotation elements 138a of the locking ring 138 are substantially aligned with the notches 130a so that the notches 130a can open through the locking ring 138. In other words, perimeter profiles of the locking ring and the coupling surface 130 are generally aligned so that the rotation elements 138a can move into the notches 130a.

[0205] More precisely, however, and as best shown in Fig. 1 lb- 1 , the rotation elements 138a are configured such that, when the locking ring 138 is in the mounting configuration, a trailing edge 137, i.e., a driven edge, of each rotation element 138a is partially offset relative to a corresponding edge 131 of respective notches 130a. In this partially offset position, the rotation element 138a is configured to locate across an opening 130b to the notches 130a. As set forth in more detail below, this position of the trailing edge 137 across the opening 130b creates a contact point on the rotation element 138a, i.e., at the trailing edge 137, with the keeper portions 132a of the mount 132 when the keeper portions are moved into the openings 130b. This contact provides the trigger for activating the locking mechanism to adopt its locking configuration.

[0206] In the mounting configuration as shown in Fig. I la, the locking ring is centrally located with respect to the mid-lines A-A, B-B, whereby the link elements 144 are located towards the inner end points 166b of the slots 162.

[0207] Referring to Fig. 1 lb for comparison, the locking mechanism is shown in the locking configuration, where the locking ring 138 is rotated, in-use, counterclockwise about the recess 126. The locking ring 138 in this configuration arranges the rotation elements 138a in an offset, i.e., substantially misaligned, position relative to the notches 130a. In other words, the rotation elements 138a partially cover the notches 130a, whereby the rotation elements rotate from the mid-line A- A by an angle ‘O’. In this configuration, i.e., the locking configuration as shown in Fig. 1 lb, the locking ring is rotated such that the link elements 144 are located towards the outer end points 166a of the slots 162.

[0208] Moreover, when the notches 130a are arranged in the locking configuration, a leading edge 141 of the rotation element 138a, i.e., an edge opposite the trailing edge 137, is provided with a ramped surface (see Fig. 1 lc-1). The ramped surface of the leading edge 141 is configured to correspond with, i.e., to be angled complementary to, the ramped surface 135 of the keeper portions 132a (see Fig. 8). As set forth above, and in more detail later in relation to Fig. 1 lc-1, when the rotation elements 138a are rotated into their offset positions, the ramped surface of the leading edge 141 can contact, i.e., wedge against the ramped surface 135 or at a region of the keeper portions 132a relative to the ramped surface, for locking the mount 132 thereat.

[0209] As set forth previously, the actuators 136 are located about the centre-line B-B through the circular profile of the recess 126. Accordingly, the actuators are configured to translate, i.e., slide laterally along the centre-line B-B, to move towards, and away from, the mid-line A-A.

[0210] As shown in Fig. 12a, when the locking mechanism is in the mounting configuration, the actuators 136 are located inwardly such that the terminal ends 161 of the buttons 160 are spaced closely to, i.e., generally flush with, the perimeter walls 116a, 116b the case 110. In this configuration, i.e., the mounting configuration, theactuators 136 are located at an inner-most position of their range of lateral movement. As such, the actuators are “passive” in the mounting configuration.

[0211] Referring to Fig. 12b for comparison, the locking mechanism is shown in the locking configuration, where the actuators 136 are positioned such that the terminal ends 161 of the buttons 160 are located at a distance ‘Tl’ from the perimeter walls 116a, 116b, i.e., spaced further from the perimeter walls than when located in the mounting configuration. In this configuration, i.e., the locking configuration, the actuators 136 are located at an outer-most position of their range of lateral movement. In this position, the actuators are ‘active” and can be depressed to cause unlocking of the locking mechanism 134.

[0212] As set forth in more detail below, the locking mechanism of the second embodiment is configured to move between the mounting configuration and the locking configuration shown respectively in Figs. I la and 1 lb. That is, the locking mechanism can move from the mounting configuration to the locking configuration, and from the locking configuration to the mounting configuration.4.3.2.6 Biasing elements: Magne ts

[0213] The rotation elements 138a are positioned relative to the notches 130a by biasing elements 142a- 142c. These biasing elements act as the drivers of the locking mechanism. In the form shown, the biasing elements are magnets 142a-142c.

[0214] The locking ring 138 comprises two rotation magnets 142a mounted in opposing, peripheral wings 180. The peripheral wings 180 position the magnets 142a at an outside perimeter of the locking ring, i.e., spaced outwardly from the rotation elements 138a. Each of the opposing magnets 142a, in-use, are spaced from the rotation elements 138a to align with corresponding two static magnets 142b, 142c mounted in the base plate 170 of the locking mechanism 134. As shown in Figs. I la and 1 lb, the base plate 170 comprises four static magnets 142b, 142c positioned in opposing relation about the perimeter of the recess 126.

[0215] For each set of static magnets 142b, 142c, the magnets are spaced apart from each other, i.e., a first static magnet 142b is spaced from a second static magnet 142c. The static magnets 142b, 142c are each spaced from a centre ‘C’ of the recess 126 by the same distance, i.e., radius, such that an imaginary circumference ‘Cl’through the two static magnets aligns with the rotation magnet 142a of the locking ring. The magnets 142a- 142c are aligned such that, as the locking ring 138 rotates, i.e., through the angle ‘9’, the rotation magnets 142a can move between the two respective static magnets 142b, 142c.4.3.2. 7 Open and closed positions of locking ring

[0216] As shown in Fig. I la and 1 lb- 1 , when the locking mechanism is configured in the mounting configuration, the rotation magnet 142a is biased towards the second static magnet 142c, whereby the rotation elements 138a are aligned with the coupling surface 130 such that the notches 130a open through the locking ring 138. In this position of the rotation elements 138a, the locking ring can be considered in an ‘open’ position. In other words, the rotation elements 138a are held in an open configuration by an attraction between the rotation magnet 142a and the second static magnet 142c. In this configuration of the magnets, i.e., the mounting configuration of the locking mechanism, the rotation elements in the closed position are spaced away from the notches 130a so they do not interfere with the keeper portionsl32a entering the notches 130a.

[0217] Conversely, when the locking ring rotates from the mounting configuration (Fig. I la and 1 lb- 1 ) to the locking configuration (Fig. 1 lb and 1 lc-1), the rotation magnet 142a is biased towards the first static magnet 142b, whereby the rotation elements 138a are offset, i.e., misaligned, relative to the notches 130a. In this position of the rotation elements 138a, the locking ring can be considered in an ‘closed’ position. In this configuration of the magnets, i.e., the locking configuration of the locking mechanism, the rotation elements 138a are held in the closed position by an attraction between the rotation magnet 142a and the first static magnet 142b.4.3.2.8 Mount to case attachment

[0218] With reference to Figs. 1 la-1 lb and 12a-12b, a process of attaching the case 100 to the mount 132 is now described. Referring firstly to Fig. I la, showing the locking mechanism in the mounting configuration, the rotation magnets 142a of the locking ring 138 are attracted towards the second static magnets 142c such that the actuators 136 are located towards the mid-line A-A of the case 100. As shown in Fig. 12a with reference to Fig. I la, this configuration of the locking mechanism positionsthe buttons 160 to be substantially concealed within the case 100 and the locking ring 138 in the open position.4.3.2.8.1 Partial / bi-stable magnetic engagement

[0219] When the locking mechanism is in the mounting configuration, the rotation magnets 142a are not located directly over, i.e., not centrally aligned with, the second static magnets 142c. Rather, the rotation magnets 142a are located in a position ‘M’, being offset from the second static magnets 142c such that they are in a partial magnetic engagement with the second static magnets 142c. The rotation magnets 142a are held in this position, i.e., prevented from moving directly over the second magnets 142c, by contact between the peripheral wings 180 and the first dead stop 172a of the tray 172.

[0220] Holding the rotation magnets in this partial magnetic engagement reduces the magnitude of magnetic attraction required to urge the rotation magnets 142a away from the second static magnets 142c, i.e., towards the locking configuration of the locking mechanism, as set forth below.

[0221] Moreover, when the magnets are in this partial magnetic engagement, i.e., when in the mounting configuration, the trailing edge 137 of the rotation element 138a can locate, i.e., protrude, slightly across the notches 130a, as set forth previously. When in this position, the trailing edge 137 is positioned to contact the keeper portions 132a as they are moved into their respective notches 130a thereby triggering the locking mechanism.

[0222] The trailing edge 137 is spaced from the edge 131 of respective notches 130a such that, when the mount 132 is moved into the recess 126, the keeper portions 132a contact respective trailing edges 137 to rotate, i.e., push the rotation elements 138a away from the opening 130b of the notch 130a. The extent to which the trailing edge 137 extends from the respective notch edges 131 is such that, when the rotation elements 138a are contacted and moved by the keeper portions 132a, the rotation magnets 142a are moved away from the second static magnets 142c.4.3.2.8.2 Rotation into the locking configuration

[0223] Accordingly, the rotation of the locking ring 138 moves the rotation magnet 142a into a position whereby the magnetic field, i.e., force, of the first static magnet 142b attracts, i.e., pulls the rotation magnet 142a towards the first static magnet 142b. In other words, a combination of the contact between the mount and the locking ring, and the magnetic attraction of the first static magnet 142b, is sufficient to overcome the partial magnetic attraction of the rotation magnet 142a with the second static magnet 142c to rotate the locking ring 138 into the locking configuration. As such, this combination of mechanical interaction and magnetic attraction acts as the “actuator” for instigating locking of the locking mechanism.

[0224] As shown in Fig. 1 lb, when the rotation magnet 142a is attracted towards the first static magnet 142b, the rotation magnet 142a is moved to locate directly over, i.e., to be centrally aligned with, the first static magnet 142b in a position ‘L’. As set forth in more detail later, this direct alignment of the magnets 142a, 142b provides a full, i.e., strong magnetic attraction between the magnets.

[0225] As the rotation magnet 142a translates to the position ‘L’, the locking ring 138 rotates through the angle ‘O’, to position the rotation elements 138a to at least partially cover the keeper portions 132a of the mount 132 received in the notches 130a. The keeper portions 132a can be sized such that, when the rotation elements 138a rotate to cover the notches 130a, the rotation elements 138a positively engage, i.e., contact at least one of the keeper portions 132a. This engagement provides locking of the case 100 to the mount 132 and can stabilise, i.e., limit, movement of the mount when received in the recess. Advantageously, this can provide a robust connection between the mount and the case 100.

[0226] As the locking ring rotates through the angle ‘O’, the slots 162 of the locking ring, in turn, rotate through the angle ‘O’, i.e., in a counter-clockwise direction. The link elements 144 contacting the slots thereby follow the path defined by the slot 162 to translate the actuators 136 laterally outwards, i.e., away from the mid-line A-A of the case 100. As the actuator translates in this direction, the button 60 moves outwardly away from the perimeter walls 116a, 116b so as to protrude from the case 100 by the distance ‘Tl’.

[0227] Once the mount 132 is received within the recess 126, i.e., in contact with the inside surface 128 of the recess, the locking mechanism is configured in the locking configuration, i.e., whereby the buttons 160 protrude from the case 100. The mount 132 holds, i.e., maintains the rotation magnet 142a in the position ‘L’ while the mount is received in the recess. In other words, the magnetic attraction of the mount 132 prevents the locking ring 138 from moving to the open position, i.e., into the mounting configuration of the locking mechanism.4.3.2.8.3 Rotation into the mounting configuration

[0228] In order to remove, i.e., disengage the case 100 from the mount 132, the actuators 136 can be laterally translated, e.g., by a user contacting and depressing the buttons 160. This depression of the buttons 160 moves the actuators 136 inwardly towards the mid-line A-A, so as to laterally translate the link elements 144, and slide the slots 162 across the link elements 144. In turn, this rotates the locking ring clockwise through the angle ‘0’ into the open position, translating the rotation elements 138a away from the notches so as to disengage the keeper portions. Once unlocked, the case can be pulled from the mount against the magnetic attraction between the case and mount (125, 129) thereby fully releasing the case from the mount.4.3.2.9 Slot configuration

[0229] The slots 162 can be configured, e.g., calibrated with respect to the actuators 136 and magnets 142a- 142c such that receipt of the mount 132 into the recess 126 rotates the locking ring 138 into the closed position and laterally translates the actuators to project the buttons 160 from the case, and depression of the buttons 160 by a user rotates the locking ring 138 away from the notches 130a to allow the keeper portions 132a to be removed from the notches 130a.

[0230] The slots 162 can be configured, as set forth previously, with different orientations and lengths to control a magnitude of rotation, i.e., angle ‘9’, of the locking ring 138 relative to a magnitude of the lateral translation of the actuators 136. Accordingly, the configuration of the slot 162 can be adjusted to control the angle ‘9’ by which the rotation elements 138a travel to engage / di sengage with the mount 132, based on how far the buttons 160 can travel, e.g., be depressed by a user into the case 100.

[0231] Once the rotation elements 138a have been disengaged from the keeper portions 132a of the mount 132, the attraction between the magnets 142a, 142c hold, i.e., maintain the rotation elements 138a away from the notches 130a, such as to “latch” the locking ring in the mounting configuration with the buttons substantially concealed within the case 100, ready for receipt of the mount therein.

[0232] In some forms, where the case 100 is provided with the magnetic coupling 129, the magnetic coupling 129 can act through the case to align the case relative to the mount and to attract the mount 132 into the coupling 124. This magnetic attraction can pull the mount 132 against the inside surface 128 of the recess 126 so the keeper portions 132a of the mount 132 can be engaged by the locking ring 138.

[0233] As set forth in relation to the first embodiment of the locking mechanism 10, the buttons 160 of the second embodiment of the locking mechanism 100 are also configured to only protrude from the perimeter walls 116a, 116b when the mount 132 is coupled to the case 100, i.e., when the locking mechanism is in the locking configuration. Therefore, the advantages set forth in relation to the first embodiment of the locking mechanism 10 in relation to this feature, also apply to the second embodiment of the locking mechanism 100.4.3.3 Wireless Charging

[0234] The mount 132, in the form shown, is a charger adapted for wireless charging and has a transmitting coil 182 in the projection of the mount (see Fig. 8) to interact with a receiving coil in the device. As described above, the locking mechanism 134 is provided in a largely planar configuration and is disposed with the bounds of the depth of recess such that the mechanism does not impact significantly the thickness of the rear wall of the accessory. Further, the mechanism 134 is disposed around the periphery of the rear wall such that the rear wall thickness within the bounds of the recess, i.e., at the base of the recess which separates the mobile device and a distal end of the projection of the mount which locates within the recess, may be 2mm or less. In this way this wall thickness, that may be 2mm or less, provides a spacing that allows the device and charger (transmitting coil) to be close together for improving wireless charging efficiency and may satisfy the requirements of the Qi v2.0 wireless charging standard

[0235] Further, the maximum (i.e., overall / total) rear wall thickness outside the bounds of the recess may be up to around 5.5mm, such as around 5 mm, e.g. 4.7mm. Within this space the locking mechanism may be substantially contained.

[0236] It is to be appreciated that whilst on the mount 132 illustrates a transmitting coil (such as 182), the other embodiments disclosed may also be for wireless charging with the locking mechanism designed to provide the same advantages of efficient charging by allowing minimal spacing between the transmitting and charging coils. Further, in some embodiments where the magnetic arrays are disposed outside the recess 126, further charging advantages may be realized as it may provide space for mounts with larger charging coils.4.3.4 Advantages

[0237] The second embodiment of the case presents alternative advantages.

[0238] Firstly, the rotary member in the form of locking ring 138 comprises eight rotation elements 138 for retaining eight corresponding keeper portions 132a of the mount 132. Each of the keeper portions 132a provide a connection point between the mount and the case. Moreover, as the locking ring 138 rotates about the recess 126, each of the rotation elements 138 is rotated simultaneously to move across the notches 130a to engage, i.e., retain, all eight keeper portions simultaneously.4.4 BAYONET MECHANISM

[0239] Referring now to Figs. 13 to 18b, a third embodiment of the case 200 is disclosed. The third embodiment of the case 200 can be configured for a mobile device, as set forth in relation to the first and second embodiments of the case 10,100. For example, the case 200 can comprise a rear wall 214 and a perimeter wall 216 defining an interior space 218 for receiving the mobile device therewithin.

[0240] The rear wall 214 can comprise an interior wall 220 (see Fig. 15a and 15b), and a back wall 222 (see Fig. 13). As best shown in Figs. 15a and 15b, the interior wall may be formed as a fascia plate 220 configured to substantially conceal the coupling 224, as set forth below.

[0241] The third embodiment differs from the previous embodiments in that the locking mechanism 234 is configured as a locking tongue to lock the case 200 to themount 232 whilst those elements are retained in interfitting connection. The retention between the case and the mount prior to locking is through interfitting components (being tab elements 222b on the case engaging behind tabs portions 232a on the mount wall) as set forth in more detail below.

[0242] Referring to Fig. 15b, the coupling 224 of the third embodiment can be located in the rear wall 214 of the case 200. The coupling 224 of the third embodiment includes fascia plate 220 i.e., as a bearing surface for other components of the coupling, and also forms at least part of the back wall 222 of the rear wall 214.

[0243] As best shown in Figs 15a and 15b, the fascia plate 220 incorporates an opening that forms part of recess 226 of the coupling 224. The edge of that opening includes notches 222a and tab elements 222b. The tabs elements 222b are arranged to engage with mount tabs 232a of mount 232 in use to retain the case on the mount. In operation, the case 200 is present onto the mount and rotated so that the tab elements 222b locate behind the mount tabs 232a (as explained in more detail below) to retain the case 200 to the mount 232.

[0244] The coupling 224 can comprise a locking mechanism 234 which provides a bolting function to lock the case to the mount. The locking mechanism 234 can be assembled in an interior space 240 of the rear wall 214, i.e., between the back wall 222 and the interior wall (i.e., fascia plate) 220. The interior wall 220 is configured, i.e., as the fascia, to cover the interior space 240 formed in the rear wall 214, within which the locking mechanism 234 can be arranged.

[0245] The locking mechanism 234 comprises a rotary member in the form of an intermediate (or keeper) ring 238 located in the interior space 240 and arranged between the interior wall 220 and the back wall 222. The interior wall 220 can be configured with respect to the intermediate ring and the back wall to form a recess 226 in the rear wall 214.

[0246] The interior wall 220 can define an inside surface 228 of the recess 226. The intermediate ring 238 can be located against the inside surface such that the intermediate ring 238 forms part of the recess sidewalls. The opening in the back wall 222 (fascia 220) is aligned with the intermediate ring such that the opening and theintermediate ring together form the sidewalls, i.e., coupling surfaces 230 of the recess226. The recess 226 thereby opens outwardly from the back wall 122.

[0247] In other words, the intermediate ring 238 is spaced between the inside surface 228 and the back wall 222, i.e., extending from the inside surface 228 outwardly, towards the back wall 222 of the rear wall 214. In effect, the interior wall 220 and the back wall 222 form bearing surfaces for the intermediate ring 238, as will be set forth in more detail later.4.4.1 Mount structure

[0248] The tab portions 232a of the mount are configured to align with the notches 222a for receipt within the recess 226 therein. The tab portions 232a of the third embodiment are formed as generally straight protrusions, i.e., not being U- shaped keeper portions like the first embodiment. As set forth in more detail later, the tab portions 232a further comprise protrusions 250 configured to engage with the correspondingly shaped detents 248 formed on the tab elements 22b of the back wall 222 (see Figs. 13 and 15a).

[0249] Otherwise, the mount of the third embodiment can be substantially the same as first embodiment, i.e., in that the mount 232 can comprise a mounting wall 233 and a base configured for being received against the inside surface 228 of the recess 226. The tab portions 232a can be formed on the mounting wall and configured to extend outwardly therefrom. The mounting wall 233 and the tab portions 232a thereby shape the mount for receipt in the recess 226: the coupling surface 230 able to align with and receive the mounting wall 233 thereat; and the notches 222a able to align with and receive the tab portions 232a thereat.

[0250] As for the first and second embodiments, the mount 232 and its tab portions 232a of the third embodiment can be formed from a metallic material capable of being magnetised or permitting magnetic fields to passthrough. As shown in Fig. 13, the mount 232 may comprise magnetic elements 225 configured to align the case in relation to the mount and, in some forms, to attract the mount to at least part of the case 200. For example, the case 200 may comprise a magnetic coupling 229 (see Figs. 14 and 15b). The arrays of magnets in the mount and case may have an initial function of aligning the case 200 and mount 232 so that the tab portions 232a are aligned withthe notches 222a. This alignment can correspond to the case 200 being presented onto the mount 232(typically a quarter turn from a portrait or landscape orientation). It may also allow for the case to be presented for being retained in an inverted portrait and inverted landscape (again by being aligned a quarter turn from the inverted portrait or inverted landscape orientation). Such self-aligning capability aids the user experience and simplifies the mounting process. Furthermore, in some forms, the magnetic elements 225 of the mount may be configured to be attracted to the magnetic coupling 229 provided in the case 200. This magnetic attraction can pull the mount 232 into the recess 226 of the coupling 224, i.e., for retaining the mount 232 against the inside surface 228 of the recess 226.

[0251] In some alternative forms, the mount of the third embodiment may be differently shaped. Referring briefly to Figs. 22a and 22b, a variation of the mount 632 is shown, where the mount is rectangular in shape. Apart from being differently shaped, the rectangular mount 632 differs from the circular mount 632 in that the rectangular mount is not configured for wireless charging a mobile device. In this regard, the magnetic elements 625 provided in the rectangular mount 632 only act to align and attract the mount into the recess. Otherwise, the mount 632 comprises the same features as the circular mount 232, i.e., having keeper portions 632a extending from mounting walls 633.4.4.2 Intermediate ring structure

[0252] Referring briefly to Fig. 17a, the intermediate ring 238 can comprise an array of protrusions 231 arranged around the intermediate ring 238. The protrusions 231 can be sized to locate in correspondingly shaped detents 248 (see Figs. 17a and 17b) formed in the back wall 222 of the case 200. The protrusions can be located on an in-use, outwardly facing surface of the intermediate ring 238, i.e., a surface facing the back wall 222. The intermediate ring 238 is located between the inside surface 228 and the back wall 222 such that, in-use, the protrusions 231 can be located by the detents, i.e., located therein.

[0253] The intermediate ring 238 further comprises a plurality of notches 238a on the same wall as the protrusions 231. These notches 238a are arranged to align with the notches 222a located in the facia of the case when the protrusions 231 are located in the detents 248. As explained in more detail below, the notches 238a are arrangedto receive the mount tabs 232a when the mount 232 is received within the recess 226 to rotationally couple the intermediate ring 238 with the mount 232.

[0254] The intermediate ring 238 can further comprise an array of grooves 227. The grooves 227 can be arranged around the intermediate ring 238 and located on an opposing surface to the protrusions. That is, the grooves 227 can be located on an inwardly facing surface of the intermediate ring 238, i.e., facing the inside surface 228 of the interior wall 220. These grooves are arranged to receive a locking tongue 239 of the locking mechanism 234 to affect locking.

[0255] The recess 226 can be shaped to receive a mount 232 therein when the intermediate ring 238 is aligned relative to the case facia so that the protrusions 231 are within detents 248. In that position, the notches 238a of the intermediate ring 238 are aligned with the 222a of the case’s facia 220. The notches 238a, 222a can be shaped concentrically with a circular perimeter of the recess 226 and be sized to receive correspondingly shaped keeper portions 232a of the mount 232.

[0256] As best shown in Fig. 13, notches 222a of the back wall 222 are arranged with respect to quadrants of the circular recess 226. That is, the notches are arranged to be generally in a mirror-opposite relation about mid-lines A-A and B-B through the coupling 234 (see Fig. 16a where the notches 238a of the intermediate ring (which align with the notches 22) are shown).

[0257] The array of protrusions 231 on the intermediate ring 238 can be arranged around the intermediate ring 238 and located between the notches 238a. The array of grooves 227 can be arranged around the intermediate ring 238 and located in line with the notches 238a, i.e., on an opposing side of the notches 238a formed in the intermediate ring.

[0258] While the intermediate ring 238 is shown as a closed ring, it is to be appreciated that the ring may be formed as an open ring structure (i.e. a ring segment), or could include multiple ring segments that individually become rotationally coupled to the mount (and thereafter function in unison).4.4.3 Case Mount Retention

[0259] The third embodiment primarily differs from the first and second embodiments 10,100 in that the case 200 is designed to be rotated on the mount 232 to be retained thereon. On location of the case 200 onto the mount 232, the intermediate ring 238 is configured to become rotational coupled to the mount, such that it remains fixed with the mount as the case 200 is rotated thereon such that it rotates relative to the case i.e., the intermediate ring remains stationary with the mount, rather than rotating relative, i.e., independently of, the mount. Further, under such rotation, the tab portions 232a of the mount 232 can be at least partially covered, i.e., moved under, the locking elements 222b by rotation of the case 200 on the mount 232. This moves the case into a retained position on mount.4.4.4 Locking Mechanism

[0260] Referring again to Fig. 14, the locking mechanism 234 further comprises two actuators 236 configured with respect to the locking tongue 239 and the intermediate ring 238. The intermediate ring 238, actuators 236 and locking tongue 239 are configured to assemble together in the interior space, i.e., between the back wall 222 and the interior wall 220. The back wall 222 comprises an arrangement of stepped recesses for receiving the intermediate ring 238, actuators 236 and locking tongue 239 therein. The recesses are shaped to guide the movement, i.e., rotation, of the intermediate ring 238, and a translation, i.e. laterally, of the actuators 236 and the locking tongue 239. As best shown in Fig. 14, the stepped recesses can include deadstops 272a, 272b for controlling a range of lateral movement of the actuators 236, as set forth in more detail later.

[0261] Referring to Figs. 16a- 16b and 17a- 17b, the components of the locking mechanism 234 are shown in isolation. The actuators 236 each comprise inward ends in the form of driving ends 256 arranged, in-use, to locate towards the mid-line A-A. Each of the driving ends comprising a driving edge 244 for contact with the locking tongue 239, as set forth in more detail later. An opposing end of each actuator 236, i.e., an end opposing the driving ends 256, is configured as a button 260. The buttons 260 are arranged, in-use, to locate towards a respective elongate perimeter wall 216a, 216b.4.4.4.1 A ctuator structure

[0262] The third embodiment of the locking mechanism differs from the first and second embodiments in that the actuators 236 are offset from recess 226 of the coupling 234. In this regard, the two actuators 236 are located about either side of the case 200 and spaced away from the mid-line B-B of the recess 226, i.e., offset from the centre of the recess 226. The actuators 236 can translate laterally within the case 200 so as to translate laterally towards and away from the mid-line A-A, i.e., in the direction of mid-line B-B.

[0263] The actuators 236 can be aligned with peripheral openings 246 formed in each of the perimeter walls 216a, 216b of the case 200 (see Figs. 14 and 15b). As set forth in more detail later, the actuators 236 can be configured to extend, i.e., travel through the peripheral openings 246 as they translate laterally.

[0264] As best shown in Fig. 18b, a terminal end 261 of the button is arranged to locate outside the case 200, whereby the lateral translation of the actuator 236 through the peripheral openings 246 moves the terminal ends 261 towards, or away from, the perimeter walls 216a, 216b.

[0265] The peripheral openings 246 are shaped to receive the buttons 260 therethrough. Accordingly, the peripheral openings 246 act to at least partly guide the lateral movement of the actuators 236 through the back wall 222 of the case 200.

[0266] The actuators 236 can further comprise guides 266a, 266b that define a maximum translation, i.e., range of lateral movement, the actuators 236 can take through the case. The actuators 236 are arranged in the back wall 222 such that the guides 266a, 266b are located with respect to dead-stops 272a, 272b. As best shown in-use in Fig. 14, and in Fig. 16a and 17a, the guides 266a, 266b set a first position of the actuators 236, locating the terminal end 261 of the button 260 to generally align with the perimeter walls 216a, 216b. In this position, the guides 266b and dead-stops 272b are in contact, and the guides 266a are spaced from dead-stops 272a. As shown in Fig. 16b and 17b, the guides 266a, 266b set a second position of the actuators 236, whereby the guides 266a and dead-stop 272a are in contact, and the guides 266b are spaced from dead-stops 272b. As shown in Fig. 18b, the actuators in this positionprovide a spacing of ‘Tl’ between the terminal end 261 of the button and the perimeter walls 216a, 216b.4.4.4.2 Locking Tongue structure

[0267] The locking tongue 239 can be configured to extend between the actuators 236. The locking tongue 239 can be generally T-shaped, having a head 245 and an elongate tail 247. The head 245 can be configured to extend between the driving ends 256 of the actuators 236, whereby the opposing ends 249 of the head, i.e., head ends 249, are shaped to correspond with the driving ends 256.

[0268] The opposing head ends 249 are provided with head edges 251 (see Fig. 17b). The head edges 251 and the driving edges 244 are each angled such that the tail 247 of the locking tongue 239 is orientated perpendicular to the head 245, i.e., to midline B-B. The edges 244,251 are angled for controlling the lateral movement of the locking tongue 239 with respect to the actuators 236 lateral movement between the dead-stops 272a, 272b. Conversely, the lateral translation of the locking tongue 239 can drive, i.e., control a corresponding lateral movement of the actuators 236.4.4.4.3 A ctuator-locking tongue relationship

[0269] In the form shown, the respective edges 244,251 are provided with forty- five degree angles, such that the lateral movement of the actuator 236 results in a perpendicular translation of the locking tongue towards, or away from the mid-line B- B, i.e., along the mid-line A-A. That is, as the actuators 236 are moved laterally, i.e., towards or away from the mid-line A-A, the respective edges 244,251 slide about each other, such that they translate about their respective paths.

[0270] The angle provided to the edge, i.e., its orientation relative to the mid-line B-B, can control a magnitude of lateral translation of the locking tongue 239 relative to a magnitude of lateral translation of the actuators 236. That is, the angles of the respective edges provide a kind of ‘ratio’ of displacement between the locking tongue and the actuators. The effects of this ‘ratio’ are set forth in more detail later.

[0271] The locking tongue 239 can further comprise an inward end in the form of locking end 263 extending from the head 245. The locking end 263 is arranged, in-use, to locate towards the intermediate ring 238 and is configured for receipt within the grooves 227, as set forth in more detail later.4.4.4.4 Locking mechanism operation

[0272] This translation of the locking mechanism elements, i.e., of the actuators 236 and the locking tongue 239 is shown in Figs. 16a to 16b and 17a to 17b. Referring to Figs. 16a and 17a, the locking mechanism elements are shown in a mounting configuration of the locking mechanism. Referring to Fig. 16b and 17b, the locking mechanism elements are shown in a locking configuration of the locking mechanism. The actuators 236, locking tongue 239 and intermediate ring 238 can move between the locking and mounting configurations by translating the actuators 236 and locking tongue 239 laterally, and the intermediate ring 238 rotationally as set forth below.

[0273] As shown in Fig. 17a, when the locking mechanism is in the mounting configuration, the array of notches 238a of the intermediate ring 238 are aligned with the arrangement of notches 222a of the back wall 222. This allows the notches 238a of the intermediate ring to open through the notches 222a of the back wall 222. In other words, perimeter profiles of the intermediate ring and the opening in the back surface are aligned. In this configuration, i.e., the mounting configuration, the notches 238a of the intermediate ring 238 are rotationally offset from the mid-lines A- A, B-B of the coupling 234.

[0274] Referring to Fig. 17b for comparison, the locking mechanism is shown in the locking configuration, where the intermediate ring 238 is rotated about the recess 226. The intermediate ring 238 in this configuration arranges the notches 238a in an offset, i.e., misaligned, position relative to the notches 222a of the back wall 222. In other words, the intermediate ring 238 has undergone relative rotation to the case 200 through 45 degrees such that the locking elements 222b of the back wall 222 cover the notches 238a (i.e., openings to the notches) of the intermediate ring 238.

[0275] As shown in Figs. 13, 14 and 18a, when the locking mechanism is in the mounting configuration, the actuators 236 are located inwardly such that the terminal ends 261 of the buttons 260 are generally aligned with the perimeter walls 216a, 216b. Referring to Fig. 17a, in this configuration, i.e., the mounting configuration, thelatching end 263 of the locking tongue 239 contacts, i.e., locates against the intermediate ring 238. This locates the locking tongue 239 in a position whereby the locking mechanism is in an unlocked condition and the actuators 236 are located at an inner-most position of their range of lateral movement.

[0276] Referring to Fig. 18b for comparison, the locking mechanism is shown in the locking configuration, where the actuators 236 are positioned such that the terminal ends 261 of the buttons 260 are located at a distance ‘T1 ’ from the perimeter walls 216a, 216b, i.e., spaced further from the perimeter walls than when located in the mounting configuration. As shown in Fig. 17b, in this configuration, i.e., the locking configuration, the locking tongue 239 is moved to extend partially through the intermediate ring 238, i.e., the locking tongue 239 is moved closer to the mid-line B-B than when in the mounting configuration. In this position of the locking tongue 239, the actuators 236 are moved away from each other by the locking tongue 239, i.e., to be further apart than when in the mounting configuration, such that the actuators are located at an outer-most position of their range of lateral movement.

[0277] As set forth in more detail below, the locking mechanism of the second embodiment is configured to move between the mounting configuration and the locking configuration shown respectively in Figs. 16a-16b and 17a-17b. That is, the locking mechanism can be moved from the mounting configuration to the locking configuration, and from the locking configuration to the mounting configuration.4.4.4.5 Biasing elements: springs

[0278] The actuators 238 are positioned in relation to respective perimeter walls 216a, 216b by the biasing elements 242 (see Fig. 14). In the form shown, the biasing elements are springs 242, e.g., compression springs. The springs 242 are located in cut-aways 253 of the actuators and the locking tongue (see Figs. 16a andl6b). The springs 242 can be configured with respect to the actuators 238 and the back wall 222 to urge the actuators towards the mid-line A-A, i.e., so the terminal ends 261 of the buttons 260 are generally aligned with the perimeter walls 216a, 216b (as shown in Fig. 18a). The springs 242 can be configured with respect to the locking tongue 239 and the back wall 222 to urge the locking tongue towards the mid-line B-B, i.e., so the head edges 251 of the locking tongue are held in contact with the driving edges 244.

[0279] When the locking mechanism is configured in the mounting configuration, the locking tongue 239 and the actuators 236 are held against their respective biased springs by the intermediate ring 238. In particular, and as shown in Fig. 17a, the locking end 263 is positioned against the intermediate ring 238 to hold both the actuators in the mounting configuration.4.4.4.6 Mount to case attachment

[0280] Referring now to Figs. 16a- 16b and 17a- 17b, a process of attaching the case 200 to the mount 232 is described. Referring firstly to Figs. 16a and 17a, showing the locking mechanism in the mounting configuration, the array of notches 238a of the intermediate ring 238 are aligned with the array of notches 222a of the back wall 222 (best shown in Fig. 17a). The corresponding tab portions 232a of the mount 232 can be received in the aligned notches 238a, 222a, as indicated in Fig. 17a.

[0281] In the mounting configuration, the protrusions 231 of the intermediate ring 238 are located within the detents 248 of the back wall 222. The detents 248 act to weakly maintain the intermediate ring in the mounting configuration, i.e., a weak rotational force is required to rotate the protrusion 231 out and away from the detent 248. In effect, the protrusion 231 maintains the intermediate ring 238 in the mounting configuration, i.e., to keep the notches 238a, 222a aligned for receiving the tab portions 232a of the mount 232 therein.

[0282] The intermediate ring 238, when in the mounting configuration, prevents, i.e., blocks the locking tongue head 263 from entering the grooves 227. That is, the intermediate ring in the mounting configuration orientates the grooves 227 away, i.e., rotationally offset, from the head 263 by e.g., 45 degrees. As set forth previously, this position of the locking tongue 239 allows the actuators 236 to be positioned inwardly such that the terminal ends 261 of the buttons are substantially concealed within the case 200.

[0283] As shown in Fig. 17b, showing the locking mechanism in the locking configuration, once the mount 232 is received in the recess, i.e., with corresponding tab portions 232a in respective recesses 238a. Such engagement rotationally couples the intermediate ring 238 to the mount 232. In other words, the tab portions 232a locate in the recesses 238a such that the tab portions can drive against theintermediate ring 238 to rotate it within the case 200. The case 200 can then be rotated on the mount 232 for retention prior to locking. Under such movement, there is relative rotation of the mount 232 clockwise or anti-clockwise together with the intermediate ring 238, through the case, i.e., within the interior space of the rear wall 214.

[0284] As the relative rotation of intermediate ring 238 to the case 200 occurs, i.e., towards the locking configuration shown in Fig. 17b, the protrusions 231 of the intermediate ring are moved out and away from their respective detents 248 of the back wall 222. Furthermore, the tab elements 222b rotate over the tab portions 232a. The tab portions 232a of the mount can be provided with protrusions 250, shaped to correspond with the detents 248, such that the tab elements 222b of the case locate over the tab portions 232a, the protrusions 250 of the tab portions 232a can be received into the detents 248 of the back wall 222.

[0285] As the tab portions 232a locate underneath the tab elements 222b, the locking end 263 of the locking tongue 239 rotates towards alignment with the grooves 227 of the intermediate ring 238. During this process, the locking end 263 is urged, i.e., held against the intermediate ring 238 by the springs 242 so such that the end 263 slides against the intermediate ring 238 until the grooves 227 align with the locking tongue end 263, i.e., aligning with mid-line A-A. At this point, the locking end can be urged to slide into the aligned groove 227, so as to retain the intermediate ring 238 and prevent its continued rotation.

[0286] The translation of the locking tongue 239 towards the intermediate ring 238 drives the head edges 251 against respective driving edges 244 of the actuators, such that the actuators translate outwardly, away from the mid-line A-A. This positions the actuators in the locking configuration, whereby the buttons project from the perimeter walls of the case for presentation to a user (as shown in Fig. 18a).

[0287] Once in the locking configuration, the tab portions 232a are retained by, i.e., underneath, the locking elements 222b and the protrusions 250 of the keeper portions 232a are located within the detents 248 of the back wall 222, as indicated in Fig. 17b.

[0288] In order to remove, i.e., disengage the case 200 from the mount 232, the actuators 236 can be laterally translated, e.g., by a user contacting and depressing the buttons 260. This depression of the buttons 260 moves the actuators 236 inwardly towards the mid-line A-A, so as to press the driving edges 244 of the actuators against the head edges 251 of the locking tongue 239. This action of the actuators 236 drives the locking tongue 239 outwardly, i.e., away from the mid-line B-B, and away from engagement with the intermediate ring.

[0289] This translation of the locking tongue 239 removes the locking end 263 from the groove 227 such that the case 200 can freely rotate about the intermediate ring 238 (which is still rotationally coupled on the mount 232). This allows the user to rotate the case, e.g., clockwise by 45 degrees, to thereby rotate the case relative to the mount and the intermediate ring, to move the intermediate ring into the mounting configuration of the locking mechanism. As set forth previously, this aligns the notches 238a, 222a so as to allow the mount 232 to be moved out from the recess 226.

[0290] It is noted that, while Figs. 16a- 16b and 17a- 17b show the intermediate ring undergoing relative rotation anti-clockwise through 45 degrees from the mounting configuration to the locking configuration, the intermediate ring (and mount) can alternatively undergo relative rotation clockwise by 45 degrees to also move into the locking configuration. Similarly, when rotating the coupling from the locking configuration to the mounting configuration, i.e., to release the case from the mount, the locking ring (and mount) can undergo relative movement either clockwise or anti-clockwise. That is, the case can be rotated through any direction by 45 degrees to move the case between the mounting or locking configurations.4.4.4. 7 Actuator / Locking tongue configuration

[0291] During the process of moving between the mounting and locking configuration, the actuators 236 may be configured, e.g., calibrated with respect to the locking tongue 239 such that, as they translate through their range of lateral movement, the locking end can be engaged / disengaged from the intermediate ring 238.

[0292] The head edges 251 (of the locking tongue 239) and the driving edges 244 (of the actuators 236) can be angled, as set forth previously, to control the magnitudeof lateral translation of the locking tongue 239 relative to the lateral translation of the actuators 236. That is, the ‘ratio’ of the head edge and driving edge angles controls how much the latch displaces inwardly / outwardly relative to how much the actuators displace outwardly / inwardly.

[0293] Accordingly, the angles of the head edges 251 and the driving edges 244 (i.e., their angles relative to the mid-line B-B) can be adjusted to control the distance by which the locking tongue travels to engage / di sengage with the intermediate ring, based on the magnitude of displacement of the actuators.

[0294] In the particular form shown in Figs. 16a and 16b, a forty-five degree angle is provided to the head edges 251 and the driving edges 244. This results in the actuators 238 having generally the same range of movement, i.e., travel, as the locking tongue 239. In alternative forms, the angle of the head edges 251 may be greater than or less than the angle of the driving edges 244, while remaining complementary (i.e., arranging the actuator and latch perpendicular to each other). Accordingly, the range of movement, i.e., displacement, of one of, e.g., the actuators, may be greater than the other, e.g., the locking tongue.4.4.5 Advantages

[0295] The third embodiment of the case presents alternative advantages.

[0296] The intermediate ring 238 of the third embodiment comprises the grooves 227 and mating locking end 263 configured to prevent the mount from rotating, i.e., towards the notches 222a of the back wall 222, so as to come out from the recess 226 of the coupling. That is, when the locking mechanism is in the locking configuration, the interaction between the locking tongue and intermediate ring locks the case in position, such that the tab portions 232a are unable to rotate away from underneath the tab elements 222b of the back wall 222. Advantageously, this provides mechanical retention for the mount by the element 222b preventing the case pulling transversely away from the mount; and secondly, rotational locking, i.e., the locking tongue interacting with the intermediate ring 238 preventing the case from rotating away from the locking configuration.4.5 UNIVERSAL ACCESSORY ATTACHMENT

[0297] Referring now to Figs. 19a and 19b, the locking mechanisms as set forth above can alternatively be provided as part of a universal accessory 300 which is not configured for a specific electronic device as are the cases 10,100, 200 described above. The universal accessory 300 can be configured to have a housing323 which is adapted to be fixed, or otherwise secured relative to a mobile electronic device, and which incorporates substantially the same components of the locking mechanism as provided within the cases 10,100,200 as set forth already. The universal accessory 300 is not configured to receive a mobile device, e.g., a phone, as set forth already. Instead, the universal accessory 300 can be configured to connect with another object e.g., by adhesive applied to a rear surface 320 of the universal accessory 300. For example, the other object may be a mobile device case, e.g., a phone case, that is not otherwise configured to connect with any other objects. In another example, the universal accessory 300 may be configured to be attached to a camera, whereby the camera can thereby be connected with a mount 32,132,232 as set forth previously.

[0298] The housing 323 may be generally rectangular in shape, i.e. square (see Fig. 19a) or rectangular (see Fig. 19b), however other shapes can be provided. The universal accessory 300 can comprise actuators 336 configured as set forth previously. As shown in Fig. 19a, the actuators 336 can be opposingly faced on sides of the housing, or alternatively, as shown in Fig. 19b, a single actuator 339 can be provided on one side of the housing 323. In either form, the one or more actuators 336,339 can be actuated to move elements of the locking mechanism relative to the housing to unlock the locking mechanism and in some instances, to lock the locking mechanism.

[0299] Referring to the single actuator 339 of Fig. 19b, some forms of the single actuator 339 can be configured to operate in reverse to the actuator 336 as set forth previously. That is, rather than depressing the actuator 339 to release the locking mechanism from the mount 32,132,232, the actuator 339 is configured to be pulled outwardly from the housing to release the locking mechanism from the mount 32,132,232. The locking mechanism may otherwise be configured as set forth previously.4.6 UPGRADE ADAPTER

[0300] Referring now to Figs. 20a to 20c, elements as set forth above can alternatively be provided in an adaptor 400 to allow compatibility of the mounting and locking arrangements disclosed herein with other mounting arrangements. In arrangement as shown, the adaptor 400 can be configured to allow a case 10,100,200 or the universal accessory 300, as set forth already, d to connect with a legacy mount 432. The legacy mount may be e.g., an ‘old-style’ mount, i.e., a mount with a differently shaped mount than the recess 26,126,226 configured to receive / connect the locking mechanism within the case 100, 200, 300. For example, the legacy mount 432 may have an indexed profile and be configured to ‘rotate-to-lock’ with a first mounting face 438 of the adaptor, such that the adaptor can then be attached / connected to the recess of the case as set forth in any of the embodiments previously described through an opposite second mounting face 440.

[0301] The adaptor 400 is thereby configured to interface between the legacy mount 432 and the recess of the case, serving as a transitional element that connects their otherwise incompatible shapes. That is, without the adaptor 400, a direct coupling would not be possible due to the differing profile of the mount and recess.

[0302] In some forms, the adaptor 400 can be additionally configured to provide other functions to mounting arrangement. For example the adapter may incorporate vibration damping between the mount and the case 10. In further forms again, the adaptor may be configured to enable wireless charging, of e.g., a mobile device when connected to the adaptor.

[0303] The adaptor 400 can comprise a housing 423 that is generally circular in shape, however other shapes may be provided. The adaptor can also be provided with a portions 436 incorporating magnets to allow orientation and retention of the adapter onto the case 100,200, 300.. As shown in Fig. 20a and 20b, the portions 436 can be opposingly faced relative to a centre of the housing 423.4.7 ASPECTS

[0304] In the following, different configurations and / or different aspects are represented in itemised structure in addition to the subject matter of the claims and in addition to the explanations and configurations given in the introductory portion ofthis specification and the detailed description. It is to be noted that the below specific feature combinations are not intended to limit the disclosure to such specific feature combinations. By contrast, the below feature combinations merely provide different examples having improved capabilities. Features and embodiments as defined in the itemised configurations may be combined with other features and embodiments of other itemised configurations, as well as with one or more of the features of configurations described in the summary section and the detailed description section.4. 7.1 Locking mechanism with rotary element

[0305] 1. An accessory mountable to a mobile electronic device, the accessory comprising an accessory body with a rear wall, and a locking mechanism disposed in or on the accessory body, the locking mechanism including at least one locking element movable relative to the accessory body for locking the accessory to a mount, wherein the locking mechanism further comprises at least one rotary member rotatable relative to the accessory body to position the at least one locking element to cause the locking mechanism to adopt at least one of a locked or unlocked condition.

[0306] 2. An accessory according to aspect 1, wherein the accessory comprises a case for a mobile electronic device, the case including a case body to receive the mobile electronic device and having the locking mechanism disposed in or on the case body.

[0307] 3. An accessory according to aspect 2, wherein the case body includes the rear wall and wherein the locking mechanism is disposed in the rear wall.

[0308] 4. An accessory according to aspect 1, wherein the accessory is in the form of an attachment having an attachment body for securing to a mobile device case, or directly to the mobile electric device, and having the locking mechanism disposed in or on the attachment body.

[0309] 5. An accessory according to any preceding aspect, wherein the at least one rotary member rotates in a plane of the rear wall.

[0310] 6. An accessory according to any preceding aspect, wherein the locking mechanism further comprises an actuator which is manually actuatable for unlocking the accessory from the mount.

[0311] 7. An accessory according to aspect 6, wherein the actuator comprises at least one user interfacing part accessible when the locking mechanism is in the locked condition and being movable for causing the locking mechanism to adopt the unlocked condition for unlocking the accessory from the mount.

[0312] 8. An accessory according to either aspect 6 or 7, wherein the actuator comprises at least one button which is depressible towards the accessory body for unlocking of the accessory from the mount.

[0313] 9. An accessory according to aspect 8, wherein the actuator comprises two buttons disposed on opposite sides of the accessory.

[0314] 10. An accessory according to any one of aspects 6 to 9, wherein the at least one rotary member interconnects the actuator and the at least locking element and wherein operation of the actuator induces rotation in the at least one rotary member to move the at least one locking element to cause the locking mechanism to adopt an unlocked condition.

[0315] 11.An accessory according to any preceding aspect, wherein the locking element is caused to move for locking of the case on the mount on locating the accessory on or relative to the mount.

[0316] 12. An accessory according to any preceding aspect, wherein the rear wall includes a recess and the at least one locking element is disposed at a perimeter of the recess and movable within the recess for locking the accessory to the mount.

[0317] 13. An accessory according to any one of aspects 1 to 12, wherein the at least one rotary member is rotatable relative to the at least one locking element and wherein the angular displacement of the rotary member relative to the at least one locking element causes the locking mechanism to adopt at least one of a locked or unlocked condition.

[0318] 14. An accessory according to aspects 1 to 12, wherein the at least one locking element is fixed to the rotary member.

[0319] 15. An accessory according to any one of aspects 1 to 12, wherein the at least one locking element comprises at least one tab movable between a retracted and extended position.

[0320] 16. An accessory according to aspect 15, wherein the at least one tab is actuatable to move from the extended position to the retracted position under rotation of the rotary member.

[0321] 17. An accessory according to aspect 16, wherein the locking mechanism is in the unlocked condition when the at least one tab is in the retracted position.

[0322] 18. An accessory according to any one of aspects 15 to 17, when dependent on aspect 6, wherein the at least one rotary member interconnects the actuator and the at least one tab and wherein operation of the actuator induces rotation in the at least one rotary member to move the at least one tab from the extended to the retracted position.

[0323] 19. An accessory according to aspect 19, wherein the at least one tab is caused to translate from its extended position to its retracted position under rotation of the at least one rotary member through engagement with a first contact surface on the rotary member.

[0324] 20. An accessory according to either aspect 18 or 19, wherein the actuator translates to induce rotation of the at least one rotary member through engagement of the actuator with a second contact surface on the rotary member.

[0325] 21. An accessory according to aspect 20, when dependent on aspect 19, wherein the extent of translation of the actuator and at least one tab is not equidistant.

[0326] 22. An accessory according to any one of aspects 15 to 21, wherein the at least one rotary member is in the form of one or more rotary link elements.

[0327] 23. An accessory according to any one of aspects 15 to 22, wherein the at least one tab is biased into its extended position.

[0328] 24. An accessory according to aspect 23, wherein the locking mechanism comprises a releasable catch to retain the at least one tab in the retracted position.

[0329] 25. An accessory according to any one of aspects 15 to 24, when dependent on aspect 12, wherein the at least one tab is configured to project into the recess in the extended position.

[0330] 26. An accessory according to aspect 25, wherein, when the mount is received in the recess, the at least one tab is arranged to move from the retracted position to the extended position be received in a corresponding keeper structure in the mount to lock the mount to the case.

[0331] 27. An accessory according to aspect 25 or 26, when dependent on aspect24, wherein the catch is disposed within the recess and is configured to be released on locating the mount within the recess.

[0332] 28. An accessory according to any one of aspects 15 to 26, wherein the locking mechanism comprises a plurality of tabs that are angularly spaced about the recess.

[0333] 29. An accessory according to any one of aspects 15 to 17, when dependent on aspect 12, wherein the rotary member comprises a ring or ring segment and rotates about the recess within a plane of the rear wall between a first and second position.

[0334] 30. An accessory according to aspect 29, wherein the rotary member includes a keeper structure and the at least one tab is configured be received in the keeper structure when the rotary member is in the second position and the at least one tab is in the extended position.

[0335] 31.An accessory according to aspect 30, wherein, when not in the second position, the at least tab is retained in its retracted position by engagement with a contacting surface of the rotary member.

[0336] 32. An accessory according to any one of aspects 29 to 31, wherein the recess being arranged to receive the mount when the rotary member is in the first position, and wherein, when so received, the rotary member is rotationally captured on the mount.

[0337] 33. An accessory according to aspect 32, wherein, the rotary member is manually actuatable to move from the first position to the second position, and wherein in use, the accessory is arranged to be angularly displaced on the mount about the axis of rotation of the rotary member to causes the at the rotary member to move from the first position to the second position.

[0338] 34. An accessory according to aspect 33, wherein the accessory includes at least one lobe that extends into the recess and angular displacement of the accessory on the mount about the axis of rotation of the rotary member causes the at least one lobe to engage under a keeper structure of the mount to retain the accessory to the mount independently of locking.

[0339] 35. An accessory according to either aspect 34, wherein the case comprises a plurality of lobes that are angularly spaced about the recess.

[0340] 36. An accessory according to any one of aspects 1 to 12, wherein the rotary member is in the form of a ring or ring segment that rotates within a plane of the rear wall between a first and second position.

[0341] 37. An accessory according to aspect 36, wherein the locking mechanism is in the unlocked condition when the rotary member is in the first position.

[0342] 38. An accessory according to aspect 36 or 37, wherein the at least one locking element comprises at least one lobe that projects radially inwardly relative to an axis of rotation of the rotary member.

[0343] 39. An accessory according to aspect 38, wherein the rear wall includes a recess and the rotary member extending around a perimeter of the recess with the at least one lobe projecting into the recess.

[0344] 40. An accessory according to aspect 39, wherein the recess is arranged to receive the mount when the rotary member is in the first position, and wherein movement of the rotary member from the first position to the second position causes the at least one lobe to engage under a keeper structure of the mount to lock the case to the mount.

[0345] 41. An accessory according to any one of aspects 38 to 40, wherein the rotary member comprises a plurality of lobes that are angularly spaced about the rotary member.

[0346] 42. An accessory according to any preceding aspect, wherein the rotary member is bi-stable in first and second positions and requires the application of an external biasing force to move from the first position to the second position.

[0347] 43. An accessory according to aspect 42, wherein the locking mechanism includes a magnetic array to cause the rotary member to be bi-stable in the first and second positions.

[0348] 44. An accessory according to aspect 42 or 43, wherein the external biasing force is provided by interaction of components on the rotary member and mount which is caused to occur on locating the accessory on the mount.

[0349] 45. An accessory according to aspect 44, wherein the components include a ramp surface where a force on the ramp surface on the rotary member in the direction of the axis of rotation of the rotary member is caused to induce a rotational force on the rotary member.

[0350] 46. An accessory according to aspect 44 or 45, when dependent on aspect39, wherein the rotary member comprises a plurality of lobes and the mount comprises a plurality of keepers, with respective ones of the lobes being arranged to engage under respective ones of the keepers in the second position, and wherein the component on the rotary member is the trailing end of at least one of the lobes, and the component on the mount is the keeper disposed adjacent the respective keeper of the at least one lobe.4. 7.2 Locking mechanism with element that moves in arcuate path

[0351] 1. An accessory for securing to a mobile device comprising an accessory body with a rear wall, and a locking mechanism disposed in or on the accessory body, the locking mechanism includes at least one element movable relative to the accessory body along an arcuate path for the locking mechanism to adopt a locked condition for locking the accessory to a mount.

[0352] 2. The accessory according to aspect 1, in the form of a case for a mobile electronic device, the case including a case body to receive the mobile electronic device and having the locking mechanism disposed in or on the case body.

[0353] 3. The accessory of aspect 1, in the form of an attachment having an attachment body for securing to a mobile device case, or for securing directly to the mobile electric device and having the locking mechanism disposed in or on the attachment body.

[0354] 4. The accessory of any one of aspects 1 to 3, wherein the at least one element moves within a plane of the rear wall.

[0355] 5. The accessory of any one of aspects 1 to 3, wherein the at least one element moves out of a plane of the rear wall.

[0356] 6. The accessory of any one of aspects 1 to 5, wherein the rear wall of accessory body further comprising a recess arranged to receive the mount.

[0357] 7. The accessory of aspect 6, wherein the recess has an axis and the at least one element is movable in an arcuate path which is at least substantially about the recess axis.

[0358] 8. The accessory of aspect 7, wherein the at least one element is in the form of a ring.

[0359] 9. The accessory of any one of aspects 6 to 8, wherein the at least one element is a locking element and is movable into the recess to engage with the mount when so received to lock the case to the mount.

[0360] 10. The accessory of any one of aspects 1 to 9, wherein the at least one element comprises a locking ring that rotates within a plane of the rear wall.

[0361] 1 l.The accessory of aspect 10, wherein the locking ring comprises at least one lobe that projects radially inwardly relative to an axis of rotation of the locking ring.

[0362] 12. The accessory according to aspect 11 wherein the accessory includes a recess and the locking ring extends around a perimeter of the recess with the at least one lobe projecting into the recess.

[0363] 13. The accessory according to aspect 12, wherein the recess is arranged to receive the mount when the locking ring is in a first position, and wherein movement of the locking ring from the first position to a second position causes the at least one lobe to engage under a keeper structure of the mount to lock the case to the mount.

[0364] 14. The accessory according to any one of aspects 11 to 14, wherein the locking ring comprises a plurality of lobes that are angularly spaced about the ring.

[0365] 15. The accessory according to any one of aspects 1 to 8, wherein the at least one element is an intermediate ring that engages with a locking element to lock the case to the mount.4. 7.3 Locking mechanism with magnetic locating arrangement

[0366] 1. An accessory for a mobile electronic device comprising an accessory body including a rear wall, and a locking mechanism disposed in or on the accessory body, the locking mechanism including at least one locking element movable relative to the rear wall between first and second positions, and a locating arrangement to bias the at least one locking element to locate in at least one of the first and second positions, the locating arrangement comprising at least one magnet and configured to locate the at least one locking element in the at least one of the first and second positions by magnetic force.

[0367] 2. An accessory according to aspect 1, wherein the locating arrangement comprises a magnetic array configured to cause the at least one locking element to be bistable in the first and second positions by magnetic force.

[0368] 3. An accessory according to aspect 2, wherein the magnetic array of the locating arrangement is further configured to drive movement of the at least one locking element by magnetic force to at least one of the first and second positions when biased out of the other of the first and second positions.4. 7.4 Locking mechanism in combination with aligning arrangement

[0369] 1. An accessory for a mobile electronic device comprising accessory body including a rear wall, a locking mechanism disposed in or on the accessory body, the locking mechanism including at least one element movable relative to the rear wall for causing the locking mechanism to adopt a locked condition for locking the accessory to a mount; and an aligning component configured to interact with a corresponding component on the mount to align the accessory with the mount for locating of the accessory onto the mount in a position to allow locking of the accessory to the mount by the locking mechanism.

[0370] 2. An accessory according to aspect 1, wherein the alignment arrangement is magnetic.4. 7.5 Accessory for receiving wireless charging mount

[0371] 1. An accessory for a mobile electronic device comprising an accessory body including a rear wall, a recess disposed in the rear wall and opening to an outer surface of the rear wall, the recess having a bottom disposed inwardly from said rear wall outer surface; and a locking mechanism disposed in or on the accessory body for locking the accessory to a mount; wherein the locking mechanism is positionable to allow receipt of the mount into the recess into contact or close proximity to the bottom of the recess and movable to lock the case to the mount when so located.

[0372] 2. An accessory of aspect 1, wherein the recess bottom includes a bottom surface.

[0373] 3. An accessory for a mobile electronic device according to aspect 2, wherein the thickness of the rear wall at the bottom surfaces is less than 4mm, preferably less than 2mm.

[0374] 3. A wireless charger assembly for wirelessly charging a mobile electronic device having a receiving coil comprising an accessory for mounting to the mobile electronic device comprising an accessory body including a rear wall having an inner surface against which the mobile device is arranged to locate, a recess disposed in the rear wall and opening to an outer surface of the rear wall, the recess having a bottom disposed inwardly from said rear wall outer surface; and a wirelesscharger mount including a protrusion, and a transmitting coil housed within the protrusion, wherein the protrusion and the transmitting coil being receivable within the recess, and the accessory further comprises a locking mechanism disposed in or on the accessory body for locking the accessory to the mount; wherein the locking mechanism is positionable to allow receipt of the mount into the recess so that the transmitting coil is in close proximity to the bottom of the recess and movable to lock the accessory to the mount when so located.

[0375] 4. A wireless charger of aspect 3, wherein the recess bottom includes a bottom surface.

[0376] 5. A wireless charger assembly according to aspect 4, wherein the thickness of the rear wall at the bottom surfaces is less than 4mm, preferably less than 2mm.4. 7.6 Mobile device case with visual feedback of locking

[0377] 1. A case for a mobile electronic device comprising: a case body having a front face, a rear wall and a peripheral edge extending from the rear wall to define a cavity to receive the mobile device into the front face of the case; the case being configured to adopt a locking position to lock the case body to a mount and further comprising a visual indicator visible from the front face, with the electronic device received therein, to positively indicate the case is in the locking position.

[0378] 2. A case according to aspect 1 further comprising: a locking mechanism disposed in or on the case body, the locking mechanism including at least one element movable relative to the case body to cause the case to adopt the locking position.

[0379] 3. A case according to aspect 1 or 2, wherein the locking mechanism further comprises an actuator which is manually actuatable for unlocking the case from the mount.

[0380] 4. A case according to aspect 3, wherein the actuator provides the visual indicator of the case.4. 7. 7 Locking mobile device with improved user experience

[0381] 1. An accessory for a mobile electronic device comprising an accessory body to receive the mobile electronic device and including a rear wall, a recess disposed in the rear wall and opening to an outer surface of the rear wall, and a locking mechanism disposed in or on the accessory body and including at least one locking element movable relative to the rear wall for locking the accessory to a mount; wherein when the mount is received in the recess, the locking element is movable to adopt a locking position to lock the case to the mount without requiring rotation of the case on the mount.

[0382] 2. An accessory according to aspect 1, further comprising a locating arrangement to bias the at least one locking element to adopt the locking position, the locking element being caused to move from an unlocked position to the locking position on receipt of the mount within the recess under the bias of the locating arrangement.

[0383] 3. An accessory according to aspect 1 or 2, wherein the accessory further comprises an aligning component configured to interact with a corresponding component on the mount to align the accessory with the mount for receipt of the mount within the recess.

[0384] 4. An accessory according to any of aspects 1-3, wherein the accessory is in the form of a case for the mobile device having a case body containing the rear wall, a front face, and a peripheral edge extending from the rear wall to define a cavity to receive the electronic device into the front face of the case; and wherein the case further comprises a visual indicator visible from the front face with the electronic device received therein to positively indicate the locking element in the locking position.

[0385] 5. An accessory according to any of aspects 1-4, wherein the locking mechanism further comprises an actuator which is manually actuatable for moving the at least one locking element from the locking position for unlocking the case from the mount.

[0386] 6. An accessory according to aspect 5, where the accessory is in the form of a case of aspect 4, wherein the actuator provides the visual indicator of the locking element in the locking position.

[0387] Variations and modifications may be made to the parts previously described without departing from the spirit or ambit of the disclosure.

[0388] For example, while the embodiments disclosed provide four and eight locking elements for connection with a mount, more or less locking elements can be utilised.

[0389] Moreover, while even numbers of locking elements are disclosed, odd numbers of locking elements can be utilised. For example, three, five, seven, etc. Such arrangements can achieve the same benefits of the present disclosure, e.g., if the odd number of locking elements are evenly spaced around a perimeter of the coupling.

[0390] Similarly, although two actuators are provided in embodiments of the present disclosure, more or less actuators can be utilised. For example, a single actuator can be configured for translating the locking mechanism from the locking configuration to the mounting configuration.

[0391] 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 “comprising” is used in an inclusive sense, i.e. to specify the presence of the stated features but not to preclude the presence or addition of further features in various embodiments.

[0392] The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.

[0393] As used herein, the singular forms "a," "an," and "the" designate both the singular and the plural, unless expressly stated to designate the singular only.

[0394] The term "about" and the use of ranges in general, whether or not qualified by the term about, means that the number comprehended is not limited to the exact number set forth herein, and is intended to refer to ranges substantially within the quoted range while not departing from the scope of the invention. As used herein, "about" will be understood by persons of ordinary skill in the art and will vary to some extent on the context in which it is used. If there are uses of the term which are not clear to persons of ordinary skill in the art given the context in which it is used, "about" will mean up to plus or minus 10% of the particular term.

[0395] In addition, where dimensions are described herein, it will be appreciated that plus or minus (±) typical manufacturing tolerances are applicable to those values. As appreciated by those in the art, manufacturing tolerances may be determined to achieve a desired mean and standard deviation of manufactured components in relation to the ideal component profile.

Claims

CLAIMS1. An accessory mountable to a mobile electronic device, the accessory comprising an accessory body with a rear wall, and a locking mechanism disposed in or on the accessory body, the locking mechanism including at least one locking element movable relative to the accessory body for locking the accessory to a mount, wherein the locking mechanism further comprises at least one rotary member rotatable relative to the accessory body to position the at least one locking element to cause the locking mechanism to adopt at least one of a locked or unlocked condition.

2. An accessory according to claim 1, wherein the accessory comprises a case for a mobile electronic device, the case including a case body to receive the mobile electronic device and having the locking mechanism disposed in or on the case body.

3. An accessory according to claim 2, wherein the case body includes the rear wall and wherein the locking mechanism is disposed in the rear wall.

4. An accessory according to claim 1, wherein the accessory is in the form of an attachment having an attachment body for securing to a mobile device case, or directly to the mobile electric device, and having the locking mechanism disposed in or on the attachment body.

5. An accessory according to any preceding claim, wherein the at least one rotary member rotates in a plane of the rear wall.

6. An accessory according to any preceding claim, wherein the locking mechanism further comprises an actuator which is manually actuatable for unlocking the accessory from the mount.

7. An accessory according to claim 6, wherein the actuator comprises at least one button which is depressible towards the accessory body for unlocking of the accessory from the mount.

8. An accessory according to either claim 6 or 7, wherein the at least one rotary member interconnects the actuator and the at least locking element and wherein operation of the actuator induces rotation in the at least one rotary member to movethe at least one locking element to cause the locking mechanism to adopt an unlocked condition.

9. An accessory according to any preceding claim, wherein the rear wall includes a recess and the at least one locking element is disposed at a perimeter of the recess and movable within the recess for locking the accessory to the mount.

10. An accessory according to any one of claims 1 to 9, wherein the at least one locking element comprises at least one tab movable between a retracted and extended position and wherein the locking mechanism is in the unlocked condition when the at least one tab is in the retracted position.

11. An accessory according to claim 10, wherein the at least one tab is biased into its extended position and is actuatable to move from the extended position to the retracted position under rotation of the rotary member.

12. An accessory according to either claim 10 or 11, when dependent on claim 6, wherein the at least one rotary member interconnects the actuator and the at least one tab and wherein operation of the actuator induces rotation in the at least one rotary member to move the at least one tab from the extended to the retracted position.

13. An accessory according to claim 12, wherein the locking mechanism comprises a releasable catch to retain the at least one tab in the retracted position, the at least one tab being configured to project into the recess in the extended position and wherein, when the mount is received in the recess, the at least one tab is arranged to move from the retracted position to the extended position be received in a corresponding keeper structure in the mount to lock the mount to the case.

14. An accessory according to claim 13, wherein the catch is disposed within the recess and is configured to be released on locating the mount within the recess.

15. An accessory according to any one of claims 11 to 14, wherein the locking mechanism comprises a plurality of tabs that are angularly spaced about the recess.

16. An accessory according to either claim 10 or 11, wherein the rear wall includes a recess and the rotary member comprises a ring or ring segment and rotates about the recess within a plane of the rear wall between a first and second position.

17. An accessory according to claim 16, wherein the rotary member includes a keeper structure and the at least one tab is configured be received in the keeper structure when the rotary member is in the second position and the at least one tab is in the extended position and wherein, when not in the second position, the at least tab is retained in its retracted position by engagement with a contacting surface of the rotary member.

18. An accessory according to either claim 16 or 17, wherein the recess is arranged to receive the mount when the rotary member is in the first position, and wherein, when so received, the rotary member is rotationally captured on the mount, and wherein, the rotary member is manually actuatable to move from the first position to the second position, and wherein in use, the accessory is arranged to be angularly displaced on the mount about the axis of rotation of the rotary member to causes the at the rotary member to move from the first position to the second position.

19. An accessory according to claim 18, wherein the accessory includes at least one lobe that extends into the recess and angular displacement of the accessory on the mount about the axis of rotation of the rotary member causes the at least one lobe to engage under a keeper structure of the mount to retain the accessory to the mount independently of locking.

20. An accessory according to either claim 19, wherein the case comprises a plurality of lobes that are angularly spaced about the recess.

21. An accessory according to any one of claims 1 to 9, wherein the rotary member is in the form of a ring or ring segment that rotates within a plane of the rear wall between a first and second position and wherein the locking mechanism is in the unlocked condition when the rotary member is in the first position.

22. An accessory according to claim 21, wherein the at least one locking element comprises at least one lobe that projects radially inwardly relative to an axis of rotation of the rotary member.

23. An accessory according to claim 22, wherein the rear wall includes a recess and the rotary member extending around a perimeter of the recess with the at least one lobe projecting into the recess and wherein the recess is arranged to receive the mountwhen the rotary member is in the first position, and wherein movement of the rotary member from the first position to the second position causes the at least one lobe to engage under a keeper structure of the mount to lock the case to the mount.

24. An accessory according to claim 23, wherein the rotary member comprises a plurality of lobes that are angularly spaced about the rotary member.

25. An accessory according to any preceding claim, wherein the rotary member is bi-stable in first and second positions and requires the application of an external biasing force to move from the first position to the second position.

26. An accessory according to claim 25, wherein the locking mechanism includes a magnetic array to cause the rotary member to be bi-stable in the first and second positions.

27. An accessory according to claim 25 or 26, wherein the external biasing force is provided by interaction of components on the rotary member and mount which is caused to occur on locating the accessory on the mount.

28. A mounting system for a mobile electronic device comprising an accessory according to any one of the preceding claims and a mount configured to receive the at least one locking element of the accessory locking mechanism for locking the accessory to the mount.

29. A mount for use in a mounting system according to claim 28.

30. A method of mounting a mobile electronic device secured to an accessory to a mount, the method comprising: locating the accessory on the mount: causing at least one locking element of a locking mechanism associated with the accessory to move relative to the accessory, wherein when so moved, the accessory is mechanically secured to the mount; and causing the locking mechanism to adopt at least one of a locked or unlocked condition by rotating at least one rotary member of the lockingmechanism relative to the accessory body to position the at least one locking element.

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