Container

Abstract

A container 120 for a docking station 100 for a floor cleaner 200 comprises a user interaction surface 126 and a dynamic member 125 such as a handle moveable between a retracted configuration and an e

Description

BACKGROUND Floor cleaners may be provided with a docking station for storing the floor cleaner between uses. Some docking stations include an automatic system for emptying or refilling contents of the floor cleaner from a container in the docking station. SUMMARY At its most general, the present disclosure relates to a mechanical or physical means of alerting a user to a fill level, for example a remaining capacity or a remaining content, of a container. According to a first aspect, there is provided a container for a docking station for a floor cleaner, the container comprising: a user interaction surface; and a dynamic member moveable between a retracted configuration and an extended configuration in response to the determined fill level of the container as determined by a fill sensor to selectively reveal the user interaction surface. In other words, there is provided a moveable element for selectively revealing a user interface to a user depending on the fill level of the container. Put another way, there is provided a container having a user interaction surface which provides a user with a mechanism for interacting with the container that is revealed or concealed by a dynamic member, which moves depending on how full or empty the container is. In some examples, the floor cleaner may be a robotic floor cleaner and the docking station may be a docking station for a robotic floor cleaner. In some examples, the container comprises the fill sensor. In some examples, the docking station comprises the fill sensor. The fill sensor may be an electronic fill sensor. The electronic fill sensor may generate an electrical signal for causing the dynamic member to move between the extended configuration and the retracted configuration. The fill sensor may be a mechanical fill sensor. The mechanical fill sensor may comprise a moveable part for causing the dynamic member to move between the extended configuration and the retracted configuration. The fill sensor may be a hybrid fill sensor comprising aspects of an electronic fill sensor and a mechanical fill sensor as described herein. A user interaction surface may be a surface of the container, or of a portion of the container, for a user to interact with. A user interaction surface may be a surface for the user to manually interact with the container. For example, the user interaction surface may comprise a surface for the user to engage with in order to move the container. The user interaction surface may be a surface for the user to push, pull, grip or otherwise engage with in order to manoeuvre the container, for example, to remove the container from the docking station or insert the container into the docking station. By dynamically revealing the user interaction surface by moving the dynamic member from the retracted configuration to the extended configuration, or from the extended configuration to the retracted configuration, the user may be visually alerted, or prompted, based on the fill level of the container as well as being presented with a means of interacting with the container in order to address the alert / prompt. Put another way, the movement of the dynamic member to reveal the user interaction surface may prompt the user to perform an intended user interaction associated with the user interaction surface. In some examples, the dynamic member is flush with a surface of the container in the retracted configuration. In some examples, the dynamic member is proud with respect to the surface of the container in the extended configuration. In some examples, in the retracted configuration, the dynamic member lies flush with a surface of the container. By lying flush with the surface of the container, the dynamic member may be level with a surface of the container. For example, an outer surface of the dynamic member may be level with a surface of the container. In the extended configuration, the dynamic member may sit proud from the surface of the container. By sitting proud from the surface of the container, the dynamic member may protrude, or project, from the surface of the container. For example, an outer surface of the dynamic member may be spaced from a surface of the container and away from the surface of the container. The outer surface of the dynamic member may be a user facing surface of the dynamic member. The surface of the container may be an outer surface of the container. The outer surface of the container may be a user facing surface of the container. In some examples, the user interaction surface is provided on a surface of the dynamic member. The user interaction surface may be provided on the dynamic member. The user interaction surface may be recessed with respect to the outer surface of the container. In some examples, the dynamic member is a handle. The user interaction surface may be a surface of the handle. The handle may be used by the user to lift and carry the container. In the retracted configuration, the handle may be flush with the surface of the container. In this case, the user may be unable to grip the handle in order to lift and carry the container. For example, when the fill sensor determines that the contents of the container are at an acceptable level, the handle may be maintained in the retracted configuration in order to prevent the user from interacting with the container unnecessarily. In the extended configuration, the handle may be proud with respect to the surface of the container. In this case, the surface of the handle that is the user interaction surface may be exposed to the user. In the example where the dynamic member is a handle and the user interface surface is a surface of the handle, the surface of the handle that is the user interaction surface may be a gripping surface of the handle. The gripping surface of the handle may be at least part of the surface of the handle where the user grips the handle. Accordingly, when the handle is in the extended configuration, the user may be able to grip the handle in order to lift and carry the container. For example, when the fill sensor determines that the contents of the container are not at an acceptable level, the handle may move from the retracted configuration to the extended configuration in order to both alert the user to the need to interact with the container and to provide a means of interacting with (i.e., lifting and carrying) the container. The user may then fill or empty the container as required. In some examples, the dynamic member is flush with a surface of the container in the extended configuration. In some examples, the dynamic member is recessed with respect to the surface of the container in the retracted configuration. In some examples, in the extended configuration, the dynamic member lies flush with a surface of the container. By lying flush with the surface of the container, the dynamic member may be level with a surface of the container. For example, an outer surface of the dynamic member may be level with a surface of the container. In some examples, in the retracted configuration, the dynamic member may be recessed with respect to the surface of the container. By being recessed with respect to the surface of the container, the dynamic member may intrude, or retract, into the surface of the container. For example, an outer surface of the dynamic member may be spaced from a surface of the container and towards an internal surface of the container. The outer surface of the dynamic member may be a user facing surface of the dynamic member. The surface of the container may be an outer surface of the container. The outer surface of the container may be a user facing surface of the container. In some examples, the user interaction surface is recessed with respect to the surface of the container. In some examples, the dynamic member may move to reveal a user interaction surface integral to the container. In some cases, the user interaction surface may be a lip, or flange, of the surface of the container that the user may interact with, for example to grip in order to lift and carry the container. The user interaction surface may be an underside of a lip or edge of a surface of the container. The lip or edge of the surface of the container may define an edge or perimeter of a cavity for receiving the dynamic member in the retracted configuration. The lip or edge of the surface of the container may define an edge or perimeter of a cavity opened by the dynamic member moving to the extended configuration. In other words, the user interaction surface may be recessed with respect to the surface and made accessible, e.g., revealed, or inaccessible, e.g., hidden, to the user by movement of the dynamic member between the retracted configuration and the extended configuration. In the extended configuration, the dynamic member may be flush with the surface of the container. In this case, the user may be unable to reach the recessed user interaction surface in order to lift and carry the container. For example, when the fill sensor determines that the contents of the container are at an acceptable level, the dynamic member may be maintained in the extended configuration in order to prevent the user from interacting with the container unnecessarily. In the retracted configuration, the dynamic member may be recessed with respect to the surface of the container. In this case, the surface of the container that is the user interaction surface may be exposed to the user. In the example where the dynamic member is retracted into a cavity and the user interface surface is a lip or edge of the cavity for receiving the dynamic member, an underside surface of the lip or edge may be the user interaction surface, and may be a gripping surface for the user. The gripping surface may be at least part of the surface where the user grips container. Accordingly, when the dynamic member is in the retracted configuration, the user may be able to grip the user interaction surface in order to lift and carry the container. For example, when the fill sensor determines that the contents of the container are not at an acceptable level, the dynamic member may move from the extended configuration to the retracted configuration in order to both alert the user to the need to interact with the container and to provide a means of interacting with (i.e., lifting and carrying) the container. The user may then fill or empty the container as required. In the retracted configuration, the dynamic member may be flush with the surface of the container. In this case, the user may be unable to reach the recessed user interaction surface in order to lift and carry the container and / or to remove the container from the dock. For example, when the fill sensor determines that the contents of the container are at an acceptable level, the dynamic member may be maintained in the retracted configuration in order to prevent the user from interacting with the container unnecessarily. In the extended configuration, the dynamic member may be proud with respect to the surface of the container. In this case, the surface of the container that is the user interaction surface may be exposed to the user. In the example where the dynamic member is extended away from the surface of the container to reveal a cavity and the user interface surface is a lip or edge of the cavity, an underside surface of the lip or edge may be the user interaction surface, and may be a gripping surface for the user. The gripping surface may be at least part of the surface where the user grips container. Accordingly, when the dynamic member is in the extended configuration, the user may be able to grip the user interaction surface in order to lift and carry the container. For example, when the fill sensor determines that the contents of the container are not at an acceptable level, the dynamic member may move from the retracted configuration to the extended configuration in order to both alert the user to the need to interact with the container and to provide a means of interacting with (i.e., lifting and carrying) the container. The user may then fill or empty the container as required. The user interaction surface may have a user interaction surface texture. The user interaction surface texture may be different to a surface texture of a surface of the container. The user interaction surface texture may be adapted to facilitate an improved grip on the user interaction surface. In some examples, the container may further comprise a visual indicator for highlighting the user interaction surface to the user when the user interaction surface has been revealed by the dynamic member. For example, the visual indicator may comprise a contrast colour provided on the user interaction surface. The contrast colour may be different to a surface colour of a surface of the container. In some examples, the visual indicator may comprise a lighting unit. The lighting unit may be activated in response to the dynamic member moving between the extended configuration and the retracted configuration. The lighting unit may be activated in response to the dynamic member moving between the retracted configuration and the extended configuration. The lighting unit may comprise a light emitting diode (LED). The fill sensor is adapted to determine a fill level of a content of the container. The fill sensor may be a mechanical fill sensor. A mechanical fill sensor may be adapted to move, or may have a moveable component adapted to move, in response to a change in the fill level of the container. The mechanical fill sensor may be adapted to move with a top surface of the content of the container. In some examples, the fill sensor comprises a moveable member adapted to move with a top surface of the content of the container. When the movable member reaches a trigger position, the moveable member may cause the dynamic member to move between the retracted configuration and the extended configuration. The moveable member may translate with respect to the container. The moveable member may be slidably connected to the container. The moveable member may rotate with respect to the container. The moveable member may be rotatably connected to the container. The moveable member may perform a compound movement with respect to the container. The compound movement may comprise a plurality of translations, a plurality of rotations, or at least one translation and at least one rotation with respect to the container. The moveable member may be adapted to move with a top surface of the contents of the container. For example, as the container is filled, the top surface of the contents of the container may rise within the container. The moveable member may rise within the container as the top surface of the contents of the container rises within the container. For example, as the container empties, the top surface of the contents of the container may fall within the container. The moveable member may fall within the container as the top surface of the contents of the container falls within the container. The moveable member may be a buoyant member adapted to float on, or near, a top surface of the contents of the container. In some examples, the dynamic member comprises a first part of a magnetic coupling and the moveable member comprises a second part of the magnetic coupling. When the first part and the second part of the magnetic coupling are aligned a magnetic force may be generated between the first part and the second part of the magnetic coupling to cause the dynamic member to move between the extended configuration and the retracted configuration. In some examples, the movement of the dynamic member may be caused, or triggered, by way of a magnetic coupling. The magnetic coupling may be provided between the dynamic member and the moveable member. The dynamic member may comprise a first part of a magnetic coupling. The moveable member may comprise a second part of the magnetic coupling. The magnetic force generated by the first and second parts of the magnetic coupling may cause, or trigger, the movement of the dynamic member between the extended configuration and the retracted configuration. The magnetic force generated by the magnetic coupling when the first and second parts of the magnetic coupling are brought into alignment may be an attractive magnetic force or a repulsive magnetic force. The first part of the magnetic coupling may comprise one or more of: a permanent magnet; an electromagnet; and a ferromagnetic material. The second part of the magnetic coupling may comprise one or more of: a permanent magnet; an electromagnet; and a ferromagnetic material. For example, the first part of the magnetic coupling may be a first magnet and the second part of the magnetic coupling may be a second magnet. By bringing the first and second magnets into alignment with like polarities facing (for example, the north pole of the first magnet facing the north pole of the second magnet or the south pole of the first magnet facing the south pole of the second magnet), the dynamic member may be repelled by the moveable member when the moveable member moves the second magnet into alignment with the first magnet, for example at a trigger position. In this way, the moveable member may cause the dynamic member to move in order to begin a movement from the retracted configuration . In some examples, the mechanical fill sensor comprises a mechanical weight sensor. The mechanical weight sensor may comprise a moveable member adapted to move in response to a weight of the contents of the container exceeding a weight threshold. The movement of the moveable member may cause the movement of the dynamic member between the retracted configuration and the extended configuration. The fill sensor may be an electronic fill sensor. The electronic fill sensor may be adapted to generate a fill sensor signal indicative of a fill level of the container. The dynamic member may move, or be moved, in response to the fill sensor signal. In some examples, the fill sensor may be an electronic fill sensor adapted to generate a fill sensor signal in response to a determined fill level of the content of the container. The dynamic member may be moveable between the retracted configuration and the extended configuration in response to the fill sensor signal. In some examples, the container may comprise a driver adapted to drive the movement of the dynamic member between the retracted position and the extended position in response to the fill sensor signal. In some examples, the fill sensor may comprise one or more of: a displacement sensor; a pressure sensor; an air pressure sensor; a hall sensor; and a force sensor. In some examples, the electronic fill sensor may comprise a displacement sensor. The displacement sensor may comprise an ultrasonic distance sensor. The displacement sensor may be adapted to determine a distance between the top surface of the content of the container and the displacement sensor. For example, as the container is filled, the top surface of the contents of the container may rise within the container. If the displacement sensor is positioned towards, or at, a top surface of the container, as the top surface of the contents of the container rises, the distance between the top surface of the contents of the container and the displacement sensor decreases. When the distance between the top surface of the contents of the container and the displacement sensor falls below a threshold value, the electronic fill sensor may generate the fill sensor signal to indicate that the container is full. For example, as the container empties, the top surface of the contents of the container may fall within the container. If the displacement sensor is positioned towards, or at, a top surface of the container, as the top surface of the contents of the container falls, the distance between the top surface of the contents of the container and the displacement sensor increases. When the distance between the top surface of the contents of the container and the displacement sensor rises above a threshold value, the electronic fill sensor may generate the fill sensor signal to indicate that the container is empty. In some examples, the electronic fill sensor may comprise a pressure sensor or a force sensor. The pressure / force sensor may be adapted to determine a weight, or mass, of the content contained within the container. The pressure / force sensor may be positioned towards, or at, a base surface of the container. For example, as the container is filled, the weight of the contents in the container may increase. When the weight of the contents in the container rises above a threshold value, the electronic fill sensor may generate the fill sensor signal to indicate that the container is full. For example, as the container is emptied, the weight of the contents in the container may decrease. When the weight of the contents in the container falls below a threshold value, the electronic fill sensor may generate the fill sensor signal to indicate that the container is empty. In some examples, the dynamic member is biased towards one of the retracted configuration and the extended configuration by way of a biasing member and releasably retained in the other of the retracted configuration and the extended configuration. In some examples, the dynamic member is rotatably connected to the container such that the dynamic member is rotatable between the retracted configuration and the extended configuration. In some examples, the biasing member comprises an over-centre spring. The dynamic member may be biased towards one of the retracted configuration and the extended configuration. The dynamic member may be releasably retained in the other of the retracted configuration and the extended configuration. For example, if the dynamic member is biased towards the extended configuration, the dynamic member may be releasably retained in the retracted configuration. For example, if the dynamic member is biased towards the retracted configuration, the dynamic member may be releasably retained in the extended configuration. In the examples where the fill sensor comprises a moveable member, the moveable member may be adapted to release the dynamic member from a retained position (i.e., one of the extended or retracted configurations). For example, the moveable member may apply a force to the dynamic member in order to cause the dynamic member to move. For example, as the moveable member is moved by the contents of the container, a surface of the moveable member may be brought into contact with a surface of the dynamic member, thereby moving the dynamic member. The release of the dynamic member from the retained position (i.e., one of the extended or retracted configurations) may be a partial movement of the dynamic member. The partial movement of the dynamic member may not be a full movement of the dynamic member from the retracted configuration to the extended configuration, or from the extended configuration to the retracted configuration. The partial movement of the dynamic member may move the dynamic member to a position where the remaining movement of the dynamic member from the retracted configuration to the extended configuration, or from the extended configuration to the retracted configuration, may be completed under the action of the biasing member. For example, the dynamic member may be rotatably connected to the container. The dynamic member may rotate between the retracted configuration and the extended configuration. The biasing member may comprise an over-centre spring. An over-centre spring may be a spring offset from a point, or axis, of rotation of the dynamic member. As such, the over-centre spring may act to cause a rotation of the dynamic member in a first direction until the dynamic member has been rotated in a second direction, opposite the first direction, by a sufficient amount, at which point the over-centre spring may act to cause a rotation of the dynamic member in the second direction. For example, the dynamic member may be rotatably connected to the container, such that a rotation of the dynamic member in a first direction causes the dynamic member to approach the retracted configuration and a rotation of the dynamic member in a second direction, opposite the first direction, causes the dynamic member to approach the extended position. The dynamic member may be releasably retained in the retracted position by the over-centre spring. When the dynamic member is in the retracted position, the over-centre spring may bias the dynamic member in the first direction. When the dynamic member is released from the retracted position, for example when a movable member moves to a trigger position as described above, the dynamic member may rotate in the second direction acting against the biasing force of the biasing member, which initially urges the rotation of the dynamic member in the first direction. This motion continues until the over-centre spring passes over the point, or axis, of rotation of the dynamic member at which point the biasing force of the over-centre spring switches to urge the rotation of the dynamic member in the second direction and thereby bias the dynamic member towards the extended position. In some examples, the container further comprises a locking member adapted to engage the dynamic member when the user interaction surface is revealed to prevent a further movement of the dynamic member. In some examples, the locking member is further adapted to disengage from the dynamic member by a user input. In some examples, the container further comprises a locking member. The locking member may be adapted to prevent a further movement of the dynamic member. The locking member may engage the dynamic member when the user interaction surface is revealed. In other words, the locking member may prevent a movement of the dynamic member from one of the retracted configuration and the extended configuration. For example, when the dynamic member moves from the retracted configuration to the extended configuration in order to reveal the user interaction surface, the locking member may releasably lock the dynamic member in the extended configuration. For example, when the dynamic member moves from the extended configuration to the retracted configuration in order to reveal the user interaction surface, the locking member may releasably lock the dynamic member in the retracted configuration. In some examples, the locking member is disengaged from the dynamic member by a user input. For example, once the user interaction surface is revealed, the dynamic member may be locked in place, in a given configuration, until the user interacts with the container, for example to empty or fill the container. In some examples, the container comprises one of: a dry container for containing dry matter; a wet container for containing a liquid; and a mixed container for containing dry matter and a liquid. The container may be a dry container. The dry container may be for receiving and temporarily storing dry matter. The dry matter may include debris collected by the robotic floor cleaner from a floor. The container may be a wet container. The wet container may be for receiving and temporarily storing a liquid. The liquid may be a cleaning fluid, in which case the container may be a cleaning fluid container. The cleaning fluid may be for provision to the robotic floor cleaner for use in cleaning a floor. The liquid may be a dirty liquid, in which case the container may be a dirty liquid container. The dirty liquid may include liquid collected by the robotic floor cleaner from a floor. The dirty liquid may include spent cleaning fluid. The container may be a mixed container. The mixed container may be for receiving and temporarily storing both dry matter and a liquid. In the examples described herein, the user may manually override the movement of the dynamic member between the retracted and extended configurations to selectively reveal the user interaction surface. According to a second aspect, there is provided a docking station for a floor cleaner, the docking station comprises a container as described above. The floor cleaner may comprise a rechargeable power source for powering an operation of the floor cleaner. The docking station may comprise a station power source. The docking station may comprise a station coupling and the floor cleaner may comprises a floor cleaner coupling, the station coupling and the floor cleaner coupling defining a power transfer assembly configured to recharge the rechargeable power source from the station power source. The floor cleaner may comprise a communication unit. The docking station may comprise a station communication unit. In some examples, the docking station may be adapted to communicate with the communication unit using the station communication unit. According to a third aspect, there is provided a docking station for a floor cleaner. The docking station may comprise a container, wherein the container comprises a user interaction surface. The docking station may further comprise a dynamic member moveable between a retracted configuration and an extended configuration in response to a determined fill level of the container as determined by a fill sensor to selectively reveal the user interaction surface. The user interaction surface of the container in the third aspect may be as described above with respect to the first aspect. The form and function of the dynamic member may be as described above with respect to the first aspect, with the exception that the dynamic member is provided in the docking station as opposed to the container. According to a fourth aspect, there is provided an actuator assembly for generating an output movement in response to a trigger signal. The actuator assembly may comprise an actuator. The actuator assembly may comprise a selection member. The actuator assembly may comprise a drive member. The drive member may be coupled to the actuator. The drive member may be adapted to cause a movement of the selection member. The actuator may be adapted to drive a first movement of the drive member in a first direction in response to the trigger signal. The first movement of the drive member in the first direction may cause the drive member to move into a trigger position associated with the selection member for generating the output movement using the selection member. The actuator may be adapted to drive a second movement of the drive member in a second direction in response to the drive member reaching the trigger position. The second direction may be different to the first direction. The second movement of the drive member in the second direction may cause movement of the selection member to generate the output movement. The output movement may be a movement of a component of the actuator assembly. For example, the output movement may be a movement of the selection member. For example, the output movement may be a movement of a component connected to, for example directly connected to, or coupled to, for example indirectly coupled to, the selection member. The output movement of the actuator assembly may be used to move a component external to the actuator assembly as described in further detail below. The trigger signal may be an electronic signal. The trigger signal may be a mechanical signal. The trigger signal may comprise a user input. The actuator may comprise one or more of: a motor; a piston; a solenoid; a pump; and the like. The first movement of the drive member may be a first translation of the drive member. The second movement of the drive member may be a second translation of the drive member. The first movement of the drive member may be a first rotation of the drive member. The second movement of the drive member may be a second rotation of the drive member. The first movement of the drive member may be a first compound movement of the drive member, the first compound movement comprising one or more first translation of the drive member and / or one or more first rotations of the drive member. The second movement of the drive member may be a second compound movement of the drive member, the second compound movement comprising one or more second translations of the drive member and / or one or more second rotations of the drive member, The drive member may be a cam. For example, the drive member may transform a rotational movement of the actuator into a linear movement. In some examples, the drive member may transform a rotational movement of the actuator into a further rotational movement. The drive member is adapted to cause a movement of the selection member. The movement of the selection member may be a translation of the selection member. The movement of the selection member may be a rotation of the selection member. The movement of the selection member may be a compound movement of the selection member, the compound movement may comprise one or more translations of the selection member and / or one or more rotations of the selection member. The selection member may be temporarily connected to, for example directly connected to, or temporarily coupled to, for example indirectly coupled to, the drive member. In some examples, the selection member may be a first selection member. The actuation assembly may further comprise a second selection member and a third selection member. The drive member may be a first drive member. The actuation assembly may further comprise a second drive member coupled to the actuator and adapted to cause a movement of the second selection member and a third drive member coupled to the actuator and adapted to cause a movement of the third selection member. The trigger signal may be associated with one of the first, second or third selection member. The actuator may be adapted to drive a first movement of the first, second and third drive members in a first direction in response to the trigger signal. The first movement of the drive members in the first direction may cause the drive member associated with the one selection member to move into a trigger position associated with the one selection member for generating the output movement using the one selection member. The actuator may be adapted to drive a second movement of the first, second and third drive members in a second direction, different to the first direction, in response to the drive member associated with the one selection member reaching the trigger position. The second movement of the drive member associated with the one selection member in the second direction (e.g., from the trigger position) may cause movement of the one selection member to generate the output movement. In some examples, the selection member described above may be a first selection member, for example of a plurality of selection members, and the drive member may be a first drive member, for example of a plurality of drive members. The actuation assembly may further comprise a second selection member and a second drive member coupled to the actuator and adapted to cause a movement of the second selection member. The actuation assembly may further comprise a third selection member and a third drive member coupled to the actuator and adapted to cause a movement of the third selection member. The trigger signal received by the actuation assembly may be associated with only one of the plurality of selection members, i.e., only one of the first, second or third selection members. In other words, the trigger signal may require only an output movement to be generated using one of the plurality of selection members, i.e., only one of the first, second or third selection members. In response to the trigger signal, the actuator may drive the plurality of drive members, i.e., the first, second and third drive members in a first direction. The drive members may be driven in the first direction until the drive member associated with the selection member associated with the trigger signal reaches the trigger position. When the drive member associated with the selection member associated with the trigger signal is in the trigger position, the remaining drive members may not be in a position to cause a movement of the remaining selection members for generating an output movement. Once the drive member associated with the selection member associated with the trigger signal reaches the trigger position, the drive members may be driven in a second direction to cause movement of the one selection member, i.e., the selection member associated with the trigger signal, to generate the output movement using the one selection member. Although the remaining drive members may also be drive in the second direction, the movement of the remaining drive members in the second direction when the remaining drive members are not in the respective trigger positions may not cause a movement of the remaining selection members for generating an output movement. In some examples, the actuator comprises a motor and the actuation assembly further comprises a drive shaft coupled to the motor. The first, second and third drive members may be arranged along the drive shaft. The first, second and third drive members are rotationally offset from each other about the drive shaft. The first movement of the drive member may be a first rotation in a first direction and the second movement of the drive member may be a second rotation in a second direction, opposite the first direction. By rotationally offsetting the drive members from each other about the drive shaft, when one of the drive members is in the trigger position the remaining drive members may be rotationally offset from their respect trigger positions. In this way, the movement of all of the drive members in the second direction will cause only the one selection member associated with the drive member in the trigger position to generate an output movement. In some examples, the actuation assembly further comprises a switch. The switch may be adapted to generate a switch control signal for causing the actuator to drive the second movement of the drive member, for example for causing the actuator to switch from driving the first movement of the drive member to driving the second movement of the actuator. Movement of the drive member to the trigger position may cause the selection member to move to a selection position. The switch may be adapted to generate the switch control in response to the selection member reaching the selection position. The switch may be triggered, or actuated, by the selection member. In particular, the switch may be triggered by the selection member moving to a selection position. The selection member may be moved to the selection position by the drive member moving to the trigger position, i.e. by the first movement of the drive member in the first direction. Alternatively, the switch may be triggered, or actuated, by a switching member coupled to the drive member. In some examples, the actuation assembly unit may further comprise a controller. The controller may be adapted to control the driving of the actuator in response to the trigger signal and the switch control signal. The controller may be adapted to: receive a trigger signal; generate a first actuator control signal to cause the actuator to drive the drive member in the first direction in response to the trigger signal; receive a switch control signal from the switch; and generate a second actuator control signal to cause the actuator to drive the drive member in the second direction in response to the switch control signal. In the example where the actuator comprises a motor and the actuation assembly further comprises a drive shaft coupled to the motor and first, second and third drive members are arranged along, and rotationally offset from each other about, the drive shaft, the switch control signal may be indicative of a given rotational orientation of the drive shaft. The controller may utilize the given rotational orientation of the drive shaft and a known rotational offset of the drive members to determine how to rotate the drive shaft in order to generate the output movement using the appropriate selection member. The trigger signal described above may be the fill sensor signal. The output movement described above may cause the movement of the dynamic member between the retracted and extended configurations. The selection member may selectively transfer movement of the drive member to the dynamic member. The output movement generated by the selection member may transfer movement of the drive member to the dynamic member to move the dynamic member between the retracted configuration and the extended configuration. When the drive member is driven in a first direction, the selection member may not transfer movement of the drive member to the dynamic member. When the drive member is driven in a second direction, different to the first direction, the selection member may transfer movement of the drive member to the dynamic member to move the dynamic member between the retracted configuration and the extended configuration. In other words, the selection member may only transfer a movement from the drive member to the dynamic member when the movement is applied in a predetermined direction. Otherwise, the selection member may not transfer the movement from the drive member to the dynamic member. Put another way, the selection member may couple the drive member to the dynamic member when the drive member is driven in a second direction and decouple the drive member from the dynamic member when the drive member is driven in a first direction, different to the second direction. In some examples, the selection member may directly contact the dynamic member in order to transfer a movement of the drive member to the dynamic member. In some examples, the selection member may be indirectly coupled with the dynamic member in order to transfer a movement of the drive member to the dynamic member. The selection member may be indirectly coupled with the dynamic member by way of one or more intervening elements, each of which may be adapted to transfer a movement of the drive member to the dynamic member for moving the dynamic member between the extended and retracted positions. The selection member may be rotatable with respect to a remaining part of the docking station. In a rest state, the selection member may be directly connected, or indirectly coupled, to the dynamic member, such that rotation of the selection member in an output direction drives a movement of the dynamic member. Rotation of the selection member in a selection direction, opposite the output direction, may bring the selection member out of connection, or coupling, with the dynamic member and may, for example, cause a switch to trigger as described above. The selection member may be rotatably connected to the docking station. The selection member may be coupled to the dynamic member such that: rotation of the selection member in an output direction drives the movement of the dynamic member; and rotation of the selection member in a selection direction, opposite the output direction, brings the selection member out of contact with the dynamic member. The selection member may be incorporated into the drive member. The selection member may be a portion of the drive member. The selection member may comprise an angled helical track and a lip, such that rotation of the drive member in an output direction engages the lip with the dynamic member in order to drive a movement of the dynamic member and such that rotation of the selection member in a selection direction, opposite the output direction, engages the angled helical track with the dynamic member. In some examples, the actuation assembly further comprises a drive biasing member for biasing the drive member towards an engagement position. The engagement position being a position in which the drive member drives the movement of the dynamic member, i.e., a position in which the lip can couple with the dynamic member. The selection member may be a selection portion of the drive member. The selection portion may comprise: a helical track; and a lip. The actuation assembly may comprise a drive biasing member for biasing the drive member towards an engagement position, the engagement position being a position in which the drive member drives the movement of the dynamic member. The lip may faces a direction of travel when the drive member is rotated in an output direction such that the lip couples with the dynamic member to drive the movement of the dynamic member between the retracted configuration and the dynamic configuration. The lip may faces away from a directional of travel when the drive member is rotated in a selection direction, opposite the output direction, such that the lip does not couple with the dynamic member. The docking station may comprises a plurality of containers. A trigger movement of each of the plurality of selection member may cause a movement of a respective dynamic member of the plurality of containers between the retracted and extended configurations. In some examples, the docking station comprises a plurality of containers. The actuation assembly may comprise a plurality of drive members and selection members as described above. Each selection member of the plurality of selection members may be adapted to generate an output movement to drive a movement of a respective dynamic member of the plurality of containers. For example, for a docking station comprising a first, second and third container, the drive controller may receive a first, second and third fill sensor signal indicating the fill level of the respective container. The actuation assembly may comprise first, second and third drive members and first, second and third selection members as described above. The first drive member and the first selection member may be associated with the first container, such that the first selection member generates an output movement to drive the movement of the dynamic member of the first container between the retracted and extended configurations. The second drive member and the second selection member may be associated with the second container, such that the second selection member generates an output movement to drive the movement of the dynamic member of the second container between the retracted and extended configurations. The third drive member and the third selection member may be associated with the third container, such that the third selection member generates an output movement to drive the movement of the dynamic member of the third container between the retracted and extended configurations. For example, if the trigger signal is a first fill sensor signal, it may be determined, for example by a controller, that the first container requires user interaction (i.e., filling or emptying). Accordingly, it may be determined, for example by a controller, that the actuation assembly needs to be operated in order to generate an output movement for driving the movement of the dynamic member of the first container between the retracted and extended configuration. The actuator may drive the movement of the first, second and third drive members in the first direction until the first drive member reaches the trigger position. In the example where the actuation assembly comprises a switch as described above, the actuator may drive the first, second and third drive members in the first direction until the switch control signal is received. The switch control signal may be indicative of a given position, e.g., a given rotational orientation, of the first, second and third drive members. The drive controller may utilize the given position of the first, second and third drive members and a known offset, e.g. rotational offset, of the drive members to determine how to rotate the first, second and third drive members in order to generate an output movement to drive the movement of the first dynamic member. For example, in order to bring the first drive member into engagement with the dynamic member of the first container, the actuator may simply drive the first, second and third drive members in a second direction after the switch control signal is received. This may be the case, for example, where the switch is actuated by the first selection member, such that the first drive member is known to be in the trigger position when the switch control signal is received. In some examples, the actuator, which may be a stepper motor, may continue to drive the first, second and third drive members in the first direction by a known amount until the first drive member reaches the trigger position, after which the motor may be driven in the first direction in order to bring the first drive member into engagement with the first dynamic surface. This may be the case, for example, where the switch is actuated by the second or third selection member, such that the first drive member is known to not be in the trigger position when the switch control signal is received. The actuation assembly may comprise a plurality of switches, wherein each switch is adapted to generate a respective switch control signal in response to an engagement between a respective drive member and a respective selection member when the actuator drives the first, second and third drive members in the first direction. In this case, the actuator may continue to drive the first, second and third drive members in the first direction until the respective switch control signal, associated with the container from which the respective fill sensor signal was received, is received. After the respective switch control signal is received, the respective drive member may be known to be in the trigger position and the actuator may drive the first, second and third drive members in the second direction to cause the respective selection member to generate the output movement and drive the movement of the dynamic member of the respective container. According to a fifth aspect, there is provided a floor cleaning system comprising a docking station as described above; and a floor cleaner adapted to dock with the docking station. BRIEF DESCRIPTION OF THE DRAWINGS Figures 1A and IB show a schematic representation of a docking station with a plurality of containers according to aspects of the present disclosure. Figures 2A and 2B show a cross-section of a container according to an aspect of the present disclosure. Figures 3A and 3B show a cross-section of a container according to another aspect of the present disclosure. Figures 4A and 4B show a cross-section of a container according to another aspect of the present disclosure. Figure 5 A shows a perspective views of an actuation assembly according to an aspect of the present disclosure. Figure 5B shows a perspective views of an actuation assembly according to another aspect of the present disclosure. DETAILED DESCRIPTION Figure 1A Figure 1A shows a schematic representation of a docking station 100 for a floor cleaner 200 with a plurality of containers 110, 120, 130 according to an aspect of the present disclosure. Each container 110,120,130 comprises adynamic member 115,125,135 moveable between a retracted configuration, as illustrated by dynamic members 115 and 135, and an extended configuration, as illustrated by dynamic member 125, in response to a determined fill level of the container 110, 120, 130. The fill level of a container 110, 120, 130 is determined by a fill sensor, examples of which are described in further detail below. Each container 110, 120, 130 comprises a user interaction surface for the user to interact with, and in particular to grip for removing the container 110, 120, 130 from the docking station 100. In the example shown in Figure 1A, the dynamic members 115, 125, 135 are flush with a surface of the containers 110, 120, 130 in the retracted configuration, as illustrated by dynamic members 115 and 135, and proud with respect to the surface of the containers 110, 120, 130 in the extended configuration, as illustrated by dynamic member 125. In particular, Figure 1A shows the example where the dynamic members 115, 125, 135 are handles and each user interaction surface is a surface of the respective handle. In the retracted configuration, as illustrated by dynamic members 115 and 135, the handles (i.e., the dynamic members) are flush with the surface of the container and the user is unbale to grip the handle in order to lift and carry the containers 110, 130. As shown in Figure 1A, in the extended configuration, as illustrated by dynamic member 125, the handle is proud with respect to the surface of the container and the surface of the handle that is the user interaction surface 126 is exposed to the user and the user is able to grip the handle in order to lift and carry the container 120. The movement of dynamic member 125 between the retracted configuration and the extended configuration selectively reveals the user interaction surface 126. In particular, the movement of dynamic member 125 from the retracted configuration to the extended configuration reveals the user interaction surface 126. The movement of dynamic member 125 from the extended configuration to the retracted configuration conceals the user interaction surface 126. Each of dynamic members 115 and 135 may behave in the same manner as dynamic member 125. Figure IB Figure IB shows a schematic representation of a docking station 100a for a floor cleaner 200 with a plurality of containers 110a, 120a, 130a according to an aspect of the present disclosure. The docking station comprises a dynamic member 115a, 125a, 135a associated with each container 110a, 120a, 130a. The dynamic members 115a, 125a, 135a are each moveable between a retracted configuration, as illustrated by dynamic members 115a and 135a, and an extended configuration, as illustrated by dynamic member 125a, in response to a determined fill level of the container 110a, 120a, 130a. The fill level of a container 110a, 120a, 130a is determined by a fill sensor, examples of which are described in further detail below. Each container 110a, 120a, 130a comprises a user interaction surface for the user to interact with, and in particular to grip for removing the container 110a, 120a, 130a from the docking station 100a. In the example shown in Figure IB, the dynamic members 115a, 125a, 135a are flush with a surface of the docking station 100a in the retracted configuration, as illustrated by dynamic members 115a and 135a, and proud with respect to the surface of the docking station 100a in the extended configuration, as illustrated by dynamic member 125a. As shown in Figure IB, in the extended configuration, as illustrated by dynamic member 125a, the handle is proud with respect to the surface of the container and the surface of the handle that is the user interaction surface 126a is exposed to the user and the user is able to grip the handle in order to lift and carry the container 120a. The movement of dynamic member 125a between the retracted configuration and the extended configuration selectively reveals the user interaction surface 126a. In particular, the movement of dynamic member 125a from the retracted configuration to the extended configuration reveals the user interaction surface 126a. The movement of dynamic member 125a from the extended configuration to the retracted configuration conceals the user interaction surface 126a. Each of dynamic members 115a and 135a may behave in the same manner as dynamic member 125a. Figures 2A to 3B Figures 2A and 2B show a cross-section of container 120 from Figure 1 with the dynamic member 125 in the retracted configuration and the extended configuration, respectively. The container 120 is held within a housing 101 of the docking station. The dynamic member 125 is rotatably mounted to the container 120 at a point of rotation 127, such that the dynamic member rotates between the retracted configuration, shown in Figure 2A, and the extended configuration, shown in Figure 2B. In the example shown in Figures 2A and 2B, the fill sensor is a mechanical fill sensor 300 provided in the container 120. The mechanical fill sensor 300 comprises a moveable member 310 adapted to move with a top surface 320 of the content of the container 120. The content of the container 120 is held within a cavity defined by a housing 121 of the container. In the example shown in Figures 2A and 2B, the container 120 is a wet container for containing a liquid, and specifically for containing a dirty liquid (which may include spent cleaning fluid) collected from the floor cleaner 200, and the moveable member 310 is a buoyant member that floats at the top surface 320 of the liquid. As the container 120 is filled, for example when the floor cleaner 200 docks with the docking station, the top surface 320 of the contents of the container rises within the container causing the moveable member 310 to rise within the container 120. The dynamic member 125 comprises a first part 330 of a magnetic coupling and the moveable member 310 comprises a second part 3 3 5 of the magnetic coupling. In the example shown in Figures 2A and 2B, the first part 330 and the second part 335 of the magnetic coupling are both permanent magnets arranged with like polarities facing, such that when the first part 330 and the second part 335 of the magnetic coupling are aligned at a trigger position, as shown in Figure 2B, a repulsive magnetic force is generated between the first part 330 and the second part 335 of the magnetic coupling to cause the dynamic member 125 to begin to move from the retracted configuration to the extended configuration. In the example shown in Figures 2A and 2B, the dynamic member 125 is coupled to the container 120 by a biasing member in the form of an over-centre spring 128. The over-centre spring 128 is offset from the point of rotation 127 of the dynamic member 125 to cause a rotation of the dynamic member in a first direction 161 until the dynamic member 125 has been rotated in a second direction 162, opposite the first direction 161, by a sufficient amount to bring the over-centre spring 128 passed the point of rotation 127 at which point the overcentre spring 128 acts to cause a rotation of the dynamic member 125 in the second direction 162. The initial rotation, or partial movement, of the dynamic member 125 in the second direction 162 that brings bring the over-centre spring 128 passed the point of rotation 127 in order to change the biasing direction of the over-centre spring 128 is caused by the repulsive magnetic force between the first part 330 and the second part 335 of the magnetic coupling when the first part 330 and the second part 335 of the magnetic coupling are aligned. The container 120 shown in Figures 2A and 2B includes a locking member 170 adapted to engage the dynamic member 125 when the user interaction surface 126 is revealed to prevent a further movement of the dynamic member 125. The locking member 170 is biased towards a locking position by a locking biasing member 171. When the dynamic member 125 reaches the extended position, a locking cavity 172 is formed by the dynamic member 125, into which the locking member 170 is biased by the locking biasing member 171. The locking member 170 is coupled to a reset member 173, which abuts the housing 101 of the docking station and prevents movement of the locking member 170 until the container 120 is removed from the docking station. Once the container 120 has been removed from the docking station 100, the reset member 173 projects from the container 120 and the locking member 170 moved to be received in the locking cavity 172. When the locking member 170 is received in the locking cavity 172, the dynamic member 125 is prevented from moving from the extended configuration back to the retracted configuration whilst the user holds the dynamic member. When the container 120 is returned to the docking station 100, a contact surface 174 of the reset member 173 is brought into contact with the housing of the docking station 101, which forces the reset member 173 into the container and the locking member 170 out of the locking cavity 172, thereby allowing the dynamic member 125 to be returned to the retracted configuration. Figures 3 A and 3B show a cross-section of container 130 from Figure 1. Features in common with the container 120 shown in Figures 2A and 2B have been given the same reference numerals in Figures 3A and 3B. In the example shown in Figures 3 A and 3B, the container 130 is a wet container for containing a liquid, and specifically for containing a cleaning fluid to be provided to the floor cleaner 200. The container 130 shown in Figures 3A and 3B differs from the container 120 shown in Figures 2A and 2B in that the movable member 410 is adapted to determine when the container 130 empties, rather than fills. As the container 130 empties, the top surface 320 of the contents of the container falls within the container and the moveable member 410 falls within the container in order to bring the first part 330 and the second part 335 of the magnetic coupling into alignment. Otherwise, the features of the container 130 shown in Figures 3 A and 3B are functionally identical to the features of the container 120 shown in Figures 2 A and 2B. Figures 4A and 4B Figures 4A and 4B show a cross-section of a container 510 according to an aspect of the disclosure. Features in common with the containers 120 and 130 shown in Figures 2A to 3B have been given the same reference numerals in Figures 4A and 4B. In the example shown in Figures 4A and 4B, the container 510 is a dry container for containing dry matter, and specifically for containing debris received from the floor cleaner 200. In the example shown in Figure 4A and 4B, the fill sensor is an electronic fill sensor in the form of a pressure sensor 520 adapted to determine a weight, or mass, of the content contained within the container 510. The pressure sensor 520 is positioned at a base surface of the container 510. As the container 510 is filled, the weight of the contents in the container increases. When the weight of the contents in the container 510 rises above a threshold value, the electronic fill sensor generates the fill sensor signal to indicate that the container is full. The docking station 100 comprises an actuator assembly 600 for driving the movement of the dynamic member 125 between the retracted position and the extended position in response to the fill sensor signal from the pressure sensor 520. The actuator assembly 600 is discussed in further detail below with respect to Figures 5A and 5B. The container 510 shown in Figures 4A and 4B further comprises translation member 530 rotatably coupled to the dynamic member 125 by a pivot 535. In response to the fill sensor signal from the pressure sensor 520, the actuator assembly 600 drives a translation of the translation member 530, which in turn drives the initial movement of the dynamic member 125 until the over-centre spring 128 passes over the pivot point 127 and the remaining movement of the dynamic member 125 from the retracted position to the extended position is completed under the biasing force of the over-centre spring 128. In the example shown in Figures 4A and 4B, the over-centre spring 128 also performs the function of the locking biasing member. The translation of the translation member 530 also disengages the translation member 530 from a projection 102 of the housing 101 of the docking station 100, which allows the container 510 to be removed from the docking station 100. Figures 5A and 5B Figure 5A shows a perspective view of an actuator assembly 600 for generating an output movement in response to a trigger signal, such as the fill sensor signal generated by the pressure sensor 520 in Figures 4A and 4B. The actuator assembly may comprise an actuator in the form of a motor 610 coupled to a drive shaft 611 and adapted to drive a movement of the drive shaft 611 in a first direction 615 and a second direction 616, opposite the first direction 615. In the example shown in Figure 5A, the actuator assembly 600 comprises a first drive member 620, a second drive member 622 and a third drive member 624. The first drive member 620, a second drive member 622 and a third drive member 624 are arranged along the drive shaft 611 and rotationally offset from each other about the drive shaft 611. The first drive member 620, a second drive member 622 and a third drive member 624 rotate in the first direction 615 and the second direction 616 with the drive shaft 611. The actuator assembly 600 further comprises a first selection member 630, a second selection member 632 and a third selection member 634. The first drive member 620 is arranged to cause a movement of the first selection member 630, the second drive member 622 is arranged to cause a movement of the second selection member 632, and the third drive member 624 is arranged to cause a movement of the third selection member 634. The movement of one of the selection members 630, 632 and 634 generates the output movement of the actuator assembly 600. As shown in Figures 4A and 4B, the output movement of the actuator assembly 600 may be used to drive the movement of the dynamic member 125 between the retracted configuration and the extended configuration. The actuator assembly 600 shown in Figure 5A is an actuator assembly 600 for use in a docking station 100 having three containers 110, 120 and 130, as shown in Figure 1. The first drive member 620 and the first selection member 630 are associated with the first container 110, the second drive member 622 and the second selection member 632 are associated with the second container 120, the third drive member 624 and the third selection member 634 are associated with the third container 130. The fill level of each container 110, 120 and 130 is monitored and fill sensor signals are sent to the actuator assembly 600 as and when a fill threshold of one of the containers 110, 120 and 130 are crossed. In response to receiving a trigger signal, for example a fill sensor signal as described above, the motor 610 drives the movement of the drive shaft 611 in the first direction 615, which in turn drives the first movement of the first drive member 620, the second drive member 622 and the third drive member 624 in the first direction 615. The first movement of the drive members 620, 622 and 624 in the first direction 615 moves the drive members 620, 622 and 624 towards a trigger position associated with their respective selection member 630, 632 and 634 for generating the output movement using the selection member 630, 632 or 634. Due to the rotational offset of each of the drive members 620, 622 and 624 about the drive shaft, only one of the drive members 620, 622 or 624 will reach the trigger position at a given time. In the example shown in Figure 5 A, the first drive member 620 is in the trigger position. The trigger signal is associated with one of the three containers 110, 120 and 130, i.e., the trigger signal may be a fill sensor signal from one of the three containers 110, 120 and 130. Accordingly, the trigger signal is associated with one of the first drive member 620 and the first selection member 630, the second drive member 622 and the second selection member 632 or the third drive member 624 and the third selection member 634. The motor 610 therefore drives the first movement of the drive members 620, 622 and 624, in the first direction 615 in response to the trigger signal, until the drive member 620, 622 or 624 associated with the trigger signal reaches the trigger position associated with the respective selection member 630, 632 or 634. In the example shown in Figure 5A, the fill sensor signal was received from the first container 110 and the motor 610 drove the drive shaft 611 in the first direction 615 until the first drive member 620 reached the trigger position associated with the first selection member 630. As the first drive member 620 is driven in the first direction, the first selection member 630 is driven in a first direction 635 towards a selection position. The actuation assembly 600 comprises a switch (not shown) arranged to be actuated by the first selection member 630 as the first selection member moves to the selection position. The actuation of the switch may inform the actuation assembly 600, which may include a controller (not shown), that the first drive member 620 has reached the trigger position associated with the first selection member 630. The switch generates a switch control signal to cause the motor 610 to drive the movement of the drive shaft 611, and so the movement of the drive members 620, 622 and 624, in the second direction 616. In the example shown in Figure 5A, the movement of the drive members 620, 622 and 624 in the second direction causes the first drive member 620 to engage with the first selection member 630 to cause a movement of the first selection member in a second direction 636 to generate the output movement of the actuator assembly 600 and drive the movement of the first dynamic member 115. Although the second 622 and third 624 drive members are also driven in the second direction 616, they are not in their respective trigger positions and so do not cause a movement of the second 632 and third 634 selection members to generate a movement of the second 125 and third 135 dynamic members. Figure 5B shows a perspective view of an actuator assembly 700 for generating an output movement in response to a trigger signal, such as the fill sensor signal generated by the pressure sensor 520 in Figures 4A and 4B. Functionally, the actuator assembly 700 function similarly to the actuator assembly shown in Figure 5A. The actuator assembly may comprise an actuator in the form of a motor 710 coupled to a drive shaft 711 and adapted to drive a movement of the drive shaft 711 in a first direction 715 and a second direction 716, opposite the first direction 715. In the example shown in Figure 5B, the actuator assembly 700 comprises a first drive member 720, a second drive member 722 and a third drive member 724. The first drive member 720, a second drive member 722 and a third drive member 724 are arranged along the drive shaft 711 and rotationally offset from each other about the drive shaft 711. The first drive member 720, a second drive member 722 and a third drive member 724 rotate in the first direction 715 and the second direction 716 with the drive shaft 711. In the example shown in Figure 5B, the selection members are incorporated into the drive members 720, 722 and 724. The selection members each comprise an angled helical track 725 and a lip 723, such that rotation of the drive member in an output direction 716 engages the lip 723 of one of selection members of the drive members 720,722 or 724 with a dynamic member 740, 742 or 744, in order to drive a movement of the dynamic member 740, 742 or 744. Rotation of the selection member in a selection direction 715, opposite the output direction 716, engages the angled helical tracks 725 with the dynamic members 740, 742 and 744, and the dynamic members 740, 742 and 744 do not move. In the example shown in Figure 5B, the driving the drive members 720, 722 and 724 in the output direction 716 would engage the lip 723 of the selection member of the second drive member with the second dynamic member 742 to cause a movement of the second dynamic member 742. The actuation assembly 700 shown in Figure 5B further comprises drive biasing members 721 for biasing the drive members 720, 722 and 724 towards an engagement position in which the drive members 720, 722 and 724 drive the movement of the dynamic members 740, 742 and 744 (when the drive members 720, 722 and 724 are driven in the output direction 716).

Claims

1. A container for a docking station for a floor cleaner, the container comprising:a user interaction surface; anda dynamic member moveable between a retracted configuration and an extended configuration in response to a determined fill level of the container as determined by a fill sensor to selectively reveal the user interaction surface.

2. The container as claimed in claim 1, wherein the dynamic member is flush with a surface of the container in the retracted configuration, and wherein the dynamic member is proud with respect to the surface of the container in the extended configuration.

3. The container as claimed in claim 2, wherein the user interaction surface is provided on a surface of the dynamic member.

4. The container as claimed in claim 3, wherein the dynamic member is a handle, and wherein the user interaction surface is a surface of the handle.

5. The container as claimed in claim 1, wherein the dynamic member is flush with a surface of the container in the extended configuration, and wherein the dynamic member is recessed with respect to the surface of the container in the retracted configuration.

6. The container as claimed in claim 2 or 5, wherein the user interaction surface is recessed with respect to the surface of the container.

7. The container as claimed in any preceding claim, wherein the fill sensor comprises a moveable member adapted to move with a top surface of the content of the container, wherein, when the movable member reaches a trigger position, the moveable member causes the dynamic member to move between the retracted configuration and the extended configuration.

8. The container as claimed in claim 7, wherein the dynamic member comprises a first part of a magnetic coupling and the moveable member comprises a second part of the magnetic coupling, wherein when the first part and the second part of the magnetic coupling are aligned a magnetic force is generated between the first part and the second part of the magnetic coupling to cause the dynamic member to move between the extended configuration and the retracted configuration.

9. The container as claimed in any of claims 1 to 6, wherein the fill sensor is an electronic fill sensor adapted to generate a fill sensor signal in response to a determined fill level of the content of the container, and wherein the dynamic member is moveable between the retracted configuration and the extended configuration in response to the fill sensor signal.

10. The container as claimed in claim 9, wherein the fill sensor comprises one or more of:a displacement sensor;a pressure sensor; and a force sensor.

11. The container as claimed in any preceding clam, wherein the dynamic member is biased towards one of the retracted configuration and the extended configuration by way of a biasing member and releasably retained in the other of the retracted configuration and the extended configuration.

12. The container as claimed in claim 11, wherein the dynamic member is rotatably connected to the container such that the dynamic member is rotatable between the retracted configuration and the extended configuration, and wherein the biasing member comprises an over-centre spring.

13. The container as claimed in any preceding claim, wherein the container further comprises a locking member adapted to engage the dynamic member when the user interaction surface is revealed to prevent a further movement of the dynamic member, andoptionally wherein the locking member is further adapted to disengage from the dynamic member by a user input.

14. The container as claimed in any preceding claim, wherein the container comprises one of:a dry container for containing dry matter;a wet container for containing a liquid; anda mixed container for containing dry matter and a liquid.

15. A docking station for a floor cleaner, the docking station comprising the container claimed in any of claims 1 to 14.

16. A docking station for a floor cleaner, the docking station comprising:a container, wherein the container comprises a user interaction surface; anda dynamic member moveable between a retracted configuration and an extended configuration in response to a determined fill level of the container as determined by a fill sensor to selectively reveal the user interaction surface.

17. An actuator assembly for generating an output movement in response to a trigger signal, the actuator assembly comprising:an actuator;a selection member; anda drive member coupled to the actuator and adapted to cause a movement of the selection member,wherein the actuator is adapted to drive a first movement of the drive member in a first direction in response to the trigger signal, wherein the first movement of the drive member in the first direction causes the drive member to move into a trigger position associated with the selection member for generating the output movement using the selection member, andwherein the actuator is adapted to drive a second movement of the drive member in a second direction, different to the first direction, in response to the drive member reachingthe trigger position, wherein the second movement of the drive member in the second direction causes movement of the selection member to generate the output movement.

18. The actuation assembly claimed in claim 17, wherein the selection member is a firstselection member and wherein the actuation assembly further comprises:a second selection member; anda third selection member,wherein the drive member is a first drive member wherein the actuation assembly further comprises:a second drive member coupled to the actuator and adapted to cause a movement of the second selection member; anda third drive member coupled to the actuator and adapted to cause a movement of the third selection member, andwherein the trigger signal is associated with one of the first, second or third selection member,wherein the actuator is adapted to drive a first movement of the first, second and third drive members in a first direction in response to the trigger signal, wherein the first movement of the drive members in the first direction causes the drive member associated with the one selection member to move into a trigger position associated with the one selection member for generating the output movement using the one selection member, andwherein the actuator is adapted to drive a second movement of the first, second and third drive members in a second direction, different to the first direction, in response to the drive member associated with the one selection member reaching the trigger position, wherein the second movement of the drive member associated with the one selection member in the second direction causes movement of the one selection member to generate the output movement.

19. The mechanical controller claimed in claim 18, wherein the actuator comprises a motor, and wherein the actuation assembly further comprises a drive shaft coupled to the motor and the first, second and third drive members are arranged along the drive shaft, wherein the first, second and third drive members are rotationally offset form each other about the drive shaft.

20. The mechanical controller claimed in any of claims 17 to 19, wherein the actuation assembly further comprises a switch adapted to generate a switch control signal for causing the actuator to drive the second movement of the drive member, and wherein movement of the drive member to the trigger position causes the selection member to move to a selection position, and wherein the switch is adapted to generate the switch control in response to the selection member reaching the selection position.

21. The docking station as claimed in claim 15, when dependent directly or indirectly on claim 9, or claim 16 wherein the docking station comprises the actuation assembly claimed in any of claims 17 to 20, and wherein the output movement causes the movement of the dynamic member between the retracted and extended configurations.

22. The docking station as claimed in claim 21, wherein the selection member is adapted to selectively transfer movement of the drive member to the dynamic member, wherein the output movement generated by the selection member transfers movement of the drive member to the dynamic member to move the dynamic member between the retracted configuration and the extended configuration.

23. The docking station as claimed in claim 22, wherein the selection member is rotatably connected to the docking station, and wherein the selection member is coupled to the dynamic member such that:rotation of the selection member in an output direction drives the movement of the dynamic member; androtation of the selection member in a selection direction, opposite the output direction, brings the selection member out of contact with the dynamic member.

24. The docking station as claimed in claim 22, wherein the selection member is a selection portion of the drive member, the selection portion comprising:a helical track; anda lip,wherein the actuation assembly further comprises a drive biasing member for biasing the drive member towards an engagement position, the engagement position being a position in which the drive member drives the movement of the dynamic member,wherein the lip faces a direction of travel when the drive member is rotated in an 5 output direction such that the lip couples with the dynamic member to drive the movement of the dynamic member between the retracted configuration and the dynamic configuration, andwherein the lip faces away from a directional of travel when the drive member is rotated in a selection direction, opposite the output direction, such that the lip does not couple 10 with the dynamic member.

25. The docking station claimed in any of claims 21 to 24, when dependent directly or indirectly on claim 18, wherein the docking station comprises a plurality of containers, and wherein a trigger movement of each of the plurality of selection member causes a movement15 of a respective dynamic member of the plurality of containers between the retracted and extended configurations.

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