Case apparatus and method for mobile devices

Abstract

The invention relates to a case device (500) for a mobile device (510), such as a smartphone or a tablet or other type of handheld device or mobile smart device, comprising a case part (501) for at least partially enclosing the mobile device (510) and an input device (502) arranged in the case part (501) for controlling the mobile device (510) accommodated in the case part (501). The input device (502) comprises a movable operating element (503) and a magnetorheological brake device (1). The movement of the operating element (503) can be damped purposefully by means of the magnetorheological brake device (1).

Description

Technical Field

[0001] The present invention relates to a housing device for a mobile device having at least one input device, a mobile device having at least one input device, and a method for operating the device. Background Technology

[0002] Such mobile devices include handheld devices (such as smartphones, foldable smartphones, tablets, or touchpads) or other types of smart devices (such as smartwatches) or laptops, foldable laptops, etc. A particularly important characteristic of such devices is their size and compactness. Therefore, current smartphones or tablets, for example, still have very few buttons or switches, or even none at all. Generally, operation is almost entirely performed through the touch-sensitive display. However, this adversely affects operating comfort. For example, the display must be constantly viewed during operation. In addition, the display must always be functional for operation. Holding the device in a prescribed manner during operation is also considered uncomfortable.

[0003] A mobile phone is known to have a radar scanner or image recognition device that can recognize, for example, non-contact gestures of a user's hand. Such operation is effective in itself, but requires a corresponding recognition system, such as a radar chip within the mobile device, and has so far only been applicable to simple commands. Summary of the Invention

[0004] Therefore, the objective of this invention is to improve the operability, and especially the comfort of operation, of such mobile devices. Preferably, reliable and targeted operation should also be achievable without visual attention to the device or display screen. Preferably, simple yet versatile manual operation should be permitted, even while wearing gloves. In particular, improvements should be achievable within existing mobile devices, i.e., improvements in operational comfort and complexity. However, it is also preferable that the solution can be integrated into the mobile device within the manufacturing process. Particularly desirable is that the compactness of the mobile device is not adversely affected.

[0005] This task is accomplished through a housing device and a mobile device. Further advantages and features of the device components with magnetorheological braking are described in the overview and examples.

[0006] The housing device according to the invention is provided for mobile devices, especially smartphones, foldable smartphones, or tablet computers (iPads, Notes, etc.) or other types of handheld devices or mobile smart devices. The housing device includes at least one housing portion for at least partially enclosing the mobile device. The mobile device is at least partially housed within or on the housing portion. The housing device includes at least one input device at least partially disposed in the housing portion for controlling the mobile device housed or contained within the housing portion. Thus, the mobile device can be operated from the housing portion side. Here, the input device includes at least one movable operating element and at least one braking device. Here, at least one movement of the operating element (performed within the operating range) can be selectively damped by means of the braking device. The housing device of the invention offers many advantages. The selective damping of the operating element of the input device provides a significant advantage. Therefore, mobile devices and, for example, smartphones or tablet computers can be easily and simply equipped with another operating element, which provides a wide range of simultaneously comfortable and particularly intuitive operating possibilities. Because of, for example, magnetorheological damping, the invention can be advantageously used to control various different device functions and, for example, applications. Certain device functions or input functions can be assigned appropriate tactile feedback, allowing the user to infer from the feedback what they are setting and in what direction of operation. For example, when the microphone recording volume is set to high, the torque can increase when rotating clockwise. This is done without looking (i.e., through "blind operation"). Using a motor-driven braking device is also feasible and particularly preferred.

[0007] Another particular advantage of this invention is that it allows not only user input to the mobile device but also tactile feedback from the mobile device to the user. The housing device with ergonomically tactile operating elements allows for very direct, finger-feel-based feedback. This enables highly precise control. Sensitive and intuitive control can be achieved through direct contact with the fingers of even gloved hands.

[0008] Furthermore, this invention allows for simple implementation and the utilization of all its advantages in existing mobile devices. For example, the smartphone or tablet can be simply housed within a casing and attached to the casing device, for example, wirelessly via Bluetooth, Ant+, ZigBee, etc. After attachment, the function can be activated, adjusted, or deactivated, for example, by rotating the operating element. This allows for advantageous mechanical or manual operation without the need to constantly look at the display screen.

[0009] Particularly preferably, the braking device is designed to be magnetorheological and / or includes at least one magnetorheological braking device. A braking device or the magnetorheological braking device includes at least one magnetorheological medium and at least one field generating device for generating and controlling the strength of the magnetic field and / or electric field. With the aid of this or a long generating device, the rheological (especially magnetorheological) medium is preferably influenced to regulate the torque used for the rotatability of the actuating element. Magnetorheological braking devices offer many advantages.

[0010] In particular, the housing assembly includes at least one control device for controlling the braking device. With the aid of this control device, the damping generated by the braking device can be adjusted in a particularly targeted manner.

[0011] In particular, to control the mobile device, the operating position of the operating element must be considered, preferably an angular position, and especially preferably a rotational angular position. In particular, the input or control of the mobile device is based on this operating position. Specifically, at least one predetermined input or control of the mobile device is assigned to a predetermined angle for this purpose. Within the scope of this invention, an angle range can also be provided.

[0012] For example, the first input is performed by rotating the actuator to a first rotation angle or a first rotation angle range. The second input is then performed by rotating the actuator to a second angle or a second rotation angle range. Here, the input device proposed preferably provides at least 30,000 incremental or different rotation angles / revolutions. Preferably, at least one input can be assigned to an increment or rotation angle respectively. The division and assignment of increments or angles to inputs is then performed particularly according to the respective device functions and, for example, according to the application. The assignment can be dynamically adjusted. Additionally, the speed and / or direction and / or time of actuator operation can also be considered for this assignment. For example, different inputs can be performed by faster rotation compared to slower rotation. In the case of slow rotation, a fine grid (= high / low torque with small angular spacing) may be necessary because, for example, precise adjustment / calibration is required. In the case of fast rotation, preferably without a grid or with a small grid, a large adjustment range or setting range can be traversed quickly and with minimal fingertip force (torque on the actuator). This provides high resolution and easy operation.

[0013] Preferably, the operating element can be rotated multiple times, especially continuously. It is also possible that the rotation angle is limited and restricted to a certain number of rotations or a range of rotation angles. It is also possible that the torque in one direction of rotation differs from that in another direction of rotation (clockwise or counterclockwise). Therefore, the user can clearly identify and assign the rotation direction or adjust the direction through tactile feedback.

[0014] The housing device preferably includes at least one sensor device. Preferably, the operating position of the operating element can be detected by means of this sensor device. The operating position of the operating element is defined, particularly by an angular position and preferably by a rotational angular position. The operating position can be obtained directly or indirectly.

[0015] In particular, the braking device can be controlled by the control device at least based on the operating position of the operating member. Specifically, the control device is adapted and designed to adjust, and preferably specifically adjust, the damping of the movement of the operating member, and especially the deceleration torque of the braking device, according to the operating position. It is possible and preferred that other damping, and especially a predetermined deceleration torque, can be adjusted depending on the operating position of the operating member.

[0016] The mitigation torque set in the prescribed operating position can be fixed and / or dynamically determined by an algorithm. The distribution of operating position and mitigation torque may depend, for example, on which device function and application is being operated. This distribution may also additionally or alternatively depend on the speed and / or time of the actuator's movement and / or the operating force and / or the direction of movement. Here, the control unit can also be learnable (artificial intelligence, machine learning). The prescribed operation or operating process (operating mode) can be optimized or assigned. If the user has a preferred operating mode over a longer period, the actuator can be adjusted to that preferred operating mode and can automatically pre-assign a function. Through corresponding tactile feedback associated with that function, the user also knows what is being adjusted and can react accordingly in case of incorrect settings.

[0017] The damping is preferably adjustable based on the rotation angle of the operating element obtained by at least one sensor device. Specifically, the damping is adjusted based on the rotation angle.

[0018] Preferably, the control device is adapted and designed to control the braking device based on at least one control command. Preferably, the control device is adapted and designed to convert the control command into at least one tactile signal perceptible on the operating element. This is particularly done so that the user can receive or obtain at least one tactile feedback (so-called force feedback) as a result of the input and / or during the input. The tactile signal particularly includes or is designed to include a predetermined sequence of damping torques. In particular, the tactile signal refers to a significant (and particularly perceptible) change in rotational resistance.

[0019] The control command specifically specifies at what rotation angle and / or when to adjust which mitigating torque. The control command may include at least one function that plots a torque variation curve with respect to rotation angle and / or time. The control command may contain information on how to dynamically adjust this function.

[0020] Control commands are preferably provided by a mobile device, and in particular by an application (App) stored on the mobile device, a remote server, or other mobile devices. The application (also called an App) is preferably a program that can at least partially run on the mobile device. The application may also be stored on a remote computer, issuing control commands to the mobile device, which are then executed locally. The control commands may also be provided by the control device itself. The control device and / or the mobile device may generate a number of different control commands or selectively choose one from a number of stored control commands. The input device is preferably wirelessly and / or wiredly connected to the mobile device. It may be connected to the input device such that the mobile device housed in the housing can be operated by the input device and / or the mobile device can transmit signals, and in particular at least one control command, to the input device. The mobile device and the input device are in a valid connection. Bidirectional communication between the mobile device and the input device is particularly specified. In particular, the housing device includes at least one connection mechanism. This connection mechanism may include, for example, a Bluetooth unit, an ANT unit, a ZigBee unit, a WLAN unit, and / or other data transmission units.

[0021] In a particularly advantageous design, the housing device includes at least one electrical energy storage unit and, for example, a battery. Specifically, the input device can be powered via the energy storage unit. The energy storage unit is preferably fixed and preferably integrated onto and / or within the housing portion. It is possible and advantageous that the input device can be powered via the energy storage unit of the mobile device and, for example, its battery (or, for example, wirelessly, inductively...).

[0022] In particular, at least the braking device and / or the control device and / or the sensor device can be powered in this way. At least one coil unit or coil device of the braking device is powered in particular by such an energy storage device.

[0023] It is possible and advantageous that the electrical energy storage device of the housing assembly is suitable and designed as an energy storage device for charging mobile devices. In particular, the housing assembly provides at least one additional battery for use with mobile devices that can be housed in the housing portion.

[0024] Preferably, the housing device includes at least one housing portion having an input device arrangement optimized for right-handed users. Preferably, the housing device also includes at least one housing portion having an input device arrangement optimized for left-handed users. In particular, the input device is arranged such that it is better accessible either with the right hand or the left hand during operation of the housing device as specified. When operation is specified with the thumb, the input device is arranged on the housing portion, for example, on the left side for left-handed users and on the housing portion on the right side for right-handed users.

[0025] In a particularly advantageous improvement, the housing includes at least two receiving mechanisms for accommodating at least one input device, respectively. Here, the input device is preferably selectively housed in one of the receiving mechanisms. This provides a particularly simple and comfortable adaptation to functions, apps, and the user's dominant hand. Thus, for example, an input device arrangement optimized for right-handed or left-handed users can be achieved by selecting the receiving mechanism. It is also possible to house one input device in each of the two receiving mechanisms. Alternatively, the input device can be repurposed into a second and / or third and / or fourth receiving mechanism.

[0026] The housing may also include at least three or at least four receiving mechanisms. In particular, the housing assembly includes at least one input device that can be removed from and inserted into the housing. Specifically, the removal and / or insertion is designed to be tool-free. In particular, the input device engages with the energy storage unit and / or mobile device via insertion and / or at least partially automatically after insertion into the receiving mechanism. Preferably, the power supply is provided at least partially automatically by inserting the input device into the receiving mechanism.

[0027] Preferably, the actuating element includes at least two operating areas, and more preferably at least three, four, or five or more operating areas. In particular, the movement of the actuating element is specifically damped, at least depending on which operating area is being operated on, and especially by touching the actuating element. Therefore, a wide variety of intuitive operational possibilities can be achieved in a particularly compact and structurally uncomplicated manner.

[0028] In particular, these operating areas can only move together and are preferably rotatable. In particular, these operating areas cannot move independently of each other. In particular, these operating areas are rotatably mounted on the same axis. In particular, these operating areas are fixedly (non-rotatably) connected to each other. In particular, at least one common braking device is provided for these operating areas. In particular, these operating areas are arranged side-by-side directly or indirectly in the axial direction. This axial arrangement particularly relates to a rotation axis and / or longitudinal axis of the operating element and / or braking device. For example, the operating element is designed as a (cylindrical) operating roller, and these operating areas are provided through the axial section of such an object.

[0029] These operating areas are preferably distinguishable by touch and / or optics (e.g., by different lighting). The operating area may also be made of glass, plexiglass, transparent or translucent material, and / or illuminated from the inside or outside. In particular, the operating area has at least locally different surfaces and / or surface structures and / or geometries and / or colors and / or materials and / or dimensions. For example, these operating areas may differ in their roughness and / or their diameter and / or their outer contour. For example, these operating areas may differ in their color and / or lighting.

[0030] It is possible and advantageous that at least one (specified) tactile feedback is based on which operating area is being operated, and in particular, the touch of the operating element. Specifically, the control device is suitably designed to generate tactile signals based on which operating area is being operated or touched. For example, depending on the operated area, different sequences of damping torques and, for example, different ripples (ripples = (strong / weak) alternating torques (low / high) with time- or angle-related spacing) can be adjusted. It is also possible to specify numerous grid points or stops differently for each operating area.

[0031] These operating areas are preferably suited and designed to operate at least one specified function of the mobile device, and in particular, the operated operating area can control another function of the mobile device. Specifically, at least one device function is assigned to each operating area. In particular, at least one other device function can be operated separately by selecting an operating area. For example, three different device functions can thus be intuitively and comfortably controlled through a single operating element.

[0032] It is also preferred and advantageous that each operating area can be activated and, in particular, deactivated by touch and / or pressing. For example, the rotational movement of the operating element can be assigned to operating areas that have been touched and / or pressed at least once. It is possible to detect, and in particular measure, the pressure intensity for this purpose. In particular, these operating areas can be activated based on the pressure intensity. In particular, at least one pressure sensor is assigned to each operating area.

[0033] In all embodiments of the invention, it is possible to also know the pressure intensity acting on the actuating element, and in particular the designated actuating area, and take it into account for input. For example, a slight press may be used to initiate input or select and / or start a function. A stronger press may be used, for example, to operate or execute a command. In particular, haptic feedback varies depending on the selected function. The advantage of doing so is that the user can recognize what he has selected and what it has set.

[0034] In an advantageous improvement, the operating element is designed as a swing arm. Specifically, the operating element includes at least one swing arm support. The swing arm support is arranged between at least two operating zones. Specifically, the operating element can tilt towards both sides of the swing arm support to perform input. Specifically, a prescribed input and / or prescribed tactile feedback are provided depending on the pressed and / or pulled operating zone. Here, damping by means of a braking device may or may not be specified for pressing and / or pulling. Specifically, the swing arm support has a pivot arranged transversely to the rotation axis of the operating element.

[0035] In particular, the housing device includes at least one monitoring device. Specifically, the monitoring device is adapted and designed to detect, using sensors, which operating area is being operated in. The monitoring device specifically includes at least one image recognition sensor and / or a proximity sensor and / or at least one touch sensor and / or a radar sensor and / or at least one camera device and / or at least one capacitive sensor. In particular, at least one sensor of the monitoring device is assigned to each operating area.

[0036] In a particularly advantageous improvement, a first input can be executed by at least one first movement of the actuating element. In particular, at least another input can be executed by a subsequent movement of the actuating element. Specifically, a different damping is specified for the first movement than for the subsequent movement. Preferably, at least one targeted mitigation of torque increase is performed after the first movement, so that additional force is required for the subsequent movement.

[0037] The first movement specifically includes rotating by a predetermined angle. It particularly includes a preventative increase in the deceleration torque. Specifically, it must overcome a certain angular range so that rotation can then be easily continued. The preventative increase may include a predetermined time and / or a predetermined angular range. It is possible to increase or decrease the deceleration torque over a prolonged period. The resultant of the increased or decreased deceleration may continue to increase or decrease over time and / or angle. The term "prolonged" here specifically refers to the duration of the operation performed. Continued movement specifically includes rotating by a predetermined angle.

[0038] Preferably, at least one function is activated by a first movement of the operating member. Preferably, at least one adjustment of the function is performed by continued movement of the operating member. Continuing rotation may also activate at least another function. For example, the first movement initiates media playback, call answering, or camera functionality. Continued movement then allows for adjustments such as adjusting playback or call volume, or selecting whether to turn on the camera or choose recording mode.

[0039] The control device is preferably suited and designed to provide at least one tactile signal that can be felt on the operating element, serving as protection for humans with disabilities. For example, this could be achieved by generating Morse code using a damping torque. Alternatively, other suitable codes could be generated from the damping torque. For example, higher and lower damping torques could be arranged in a targeted sequence for such codes. This protection is particularly designed for visually and / or hearing impaired individuals. It is possible that the signal can be activated and / or repeated by operating the operating element. For example, the signal is activated by pressing or rotating once. By continuing to rotate the operating element, the signal can then be tactilely perceived, for example, with a finger or thumb. For example, the signal could describe the currently selected mobile device function, battery status, selected phone number, or other functions that would normally require visual perception.

[0040] It is possible and advantageous that zooming and / or scrolling and / or camera selection and / or call control, such as answering and / or ending a call and / or menu selection, can be performed by at least one movement of the actuator, especially rotation. Preferably, other functions can also be performed by movement of the actuator. Particularly preferably, functions can be performed by rotation of the actuator, which is further operated by rotating a wheel or rotating bar simulated on the screen. Thus, for example, ringtone settings or date selection in a calendar can be performed by rotating the actuator. Advantageously and preferably, at least one highlight of the display area can be targeted and continuously pushed by at least one movement of the actuator, especially rotation, for example, to zoom in, and preferably to jump. Preferably, the highlight jumps in the reading direction from, for example, a section of text on one line to, for example, the following section of text on the next line. Preferably, the highlight can be activated by at least one press and / or at least one rotation of the actuator. This design allows for so-called smart reading.

[0041] It is possible and advantageous to design the housing to be foldable. For this purpose, the housing comprises at least two housing segments. These segments are movably connected by at least one hinge mechanism. The input device is preferably integrated into the hinge mechanism. In particular, at least one housing segment is designed to accommodate the mobile device. This provides reliable installation of the mobile device. Furthermore, this implementation is very compact because the input device and the hinge mechanism share the structural space.

[0042] Specifically, it is specified that operation via the input device is required at least in the open state. Preferably, operation via the input device is specified in the closed state. Therefore, the mobile device can be placed in a jacket pocket with the outer casing closed, and volume adjustment, for example, of headphones can be performed via the input device. It is possible that the input device is automatically activated once the outer casing is opened.

[0043] The input or braking device particularly includes a rotation axis about which an operating member can rotate. In particular, the hinge mechanism includes a rotation axis about which a housing section pivots. Preferably, the rotation axis of the input device corresponds to or is parallel to the rotation axis of the hinge mechanism. Specifically, the operating member can rotate about the rotation axis of the hinge mechanism.

[0044] Preferably, the control device is adapted and designed to use sensors to detect whether the movement of the operating element is determined by the operation or folding of the hinge mechanism. For this purpose, for example, a monitoring device is provided.

[0045] Preferably, the mobility of the hinge mechanism can be selectively damped at least in part by means of the braking device. In particular, the hinge mechanism can be fixed in at least one pivoting position. Preferably, the hinge mechanism can be locked and / or fixed in the open and / or folded state of the housing. Fixed, in particular, means reducing the torque so high that only greater force can achieve continued rotation of the hinge mechanism.

[0046] The movement of the hinge mechanism can also be selectively locked using this braking device. Locking specifically refers to such a high mitigation torque that the hinge mechanism cannot be moved using the expected manual force. In particular, it is then only necessary to perform other operations on the operating element to release the lock.

[0047] Preferably, the hinge mechanism can be fixed and / or locked at a specific position using at least one user adjustment mechanism. This allows the user to fix the housing in a designated position, thus enabling better reading or viewing of videos, for example. Preferably, two or more grid points can be adjusted via at least one user adjustment mechanism. Each grid point is assigned a rotational position or angle and a mitigating torque. If, for example, a flip-up smart device is used for video calls, an angle can be adjusted and fixed. Such grid points, in particular, must be overcome with greater force. A locking mechanism can also be specified at such grid points. Therefore, the flip-up display can be operated, for example, during a video call without flipping open due to contact force.

[0048] It is also possible that the movement of the hinge mechanism is damped by a series of different high-frequency damping torques. This could, for example, result in vibration or tremor when the outer casing is opened or closed.

[0049] Another housing device according to the invention is provided for mobile devices, and particularly preferably foldable mobile devices. For example, the housing device is provided for foldable smartphones, foldable tablets, or other foldable handheld devices or mobile smart devices. The housing device includes at least one housing portion for at least partially enclosing the mobile device. The housing portion is designed to be foldable. The housing portion for this purpose includes at least two housing segments that are movably connected by at least one hinge mechanism. Here, the hinge mechanism includes at least one braking device. The braking device is adapted and designed to specifically dampen the relative movement of the housing segments.

[0050] The housing assembly also advantageously accomplishes this task. Through targeted damping of the housing sections, the operation of the mobile device housed within the housing can be designed to be significantly improved and more comfortable. This housing assembly and / or hinge mechanism and / or braking device is designed, in particular, at least in part, as described within the aforementioned scope of housing assemblies.

[0051] Particularly preferably, the braking device is designed to be magnetorheological and / or includes at least one magnetorheological braking device, and can be designed and improved as described above.

[0052] Preferably, the hinge mechanism and / or braking device extend beyond the width and / or height and / or length of the folded housing portion only on one side or not on either side. The hinge mechanism and / or braking device may also extend beyond only two sides or only three sides. Preferably, the hinge mechanism and / or braking device has a maximum diameter and / or maximum height and / or width equal to or less than the thickness of the folded housing portion. This allows for a very compact and easily transportable housing assembly. The hinge mechanism may at least partially protrude beyond the circumferential surface of the housing portion. The hinge mechanism may be arranged within the circumferential surface of the housing portion.

[0053] In particular, a targeted damping torque can be applied to the movement of the housing section, allowing the housing section to be fixed and / or locked in a closed and / or open state and / or at any opening angle. Preferably, the hinge mechanism is equipped with at least one control device, which can control the braking device to adjust the targeted damping for the movement of the housing section. In particular, the control device is adapted and designed to perform the multiple functions described within the aforementioned housing device scope.

[0054] In particular, the magnetorheological braking device is integrated into the hinge mechanism. Specifically, the rotation axis of the braking device corresponds to and / or is parallel to the rotation axis of the hinge mechanism. These rotation axes can also be identical. More importantly, these rotation axes are arranged on the same straight line.

[0055] The mobile device according to the invention is particularly a smartphone, tablet computer, or other type of handheld device or mobile smart device. The mobile device includes at least one device body. The mobile device includes at least one input device for controlling device functions. Here, the input device includes at least one movable operating element and at least one braking device. Here, at least one movement of the operating element can be specifically damped by means of the braking device. Preferably, most of the input device is arranged within the device body.

[0056] This mobile device is particularly well-suited for accomplishing the aforementioned tasks. In addition to significantly more comfortable operation, it offers a very compact design.

[0057] Particularly preferably, the braking device is designed as magnetorheological and / or includes at least one magnetorheological braking device. One or more of these magnetorheological braking devices include at least one magnetorheological medium and at least one field generating device for generating and controlling the strength of the magnetic field and / or electric field. With the aid of said or one field generating device, the rheological (especially magnetorheological) medium can preferably be influenced to adjust the torque for the rotatability of the operating element. Magnetorheological braking devices offer numerous advantages.

[0058] According to the invention, "arranged within the device body" means, for example, housed within a space at least partially defined by the device body. Preferably, the input device is disposed within more than 50%, preferably more than 65%, and particularly preferably more than 75% of the device body. In particular, only a portion of the operating element protrudes from the device body. Preferably, the operating element is disposed within the device body for the majority, and particularly at least 50%, of its cross-sectional area.

[0059] Preferably, the operating element is rotatable about at least one axis of rotation. The axis of rotation is preferably located within the equipment body. In particular, the axis of rotation does not protrude outside the equipment body. In particular, the operating element has a circumferential surface, more than half of which is located within the equipment body. It is especially preferred that the diameter of the operating element, particularly the operating roller, is smaller than the minimum thickness of the equipment body.

[0060] Preferably, the input device of the mobile device is designed at least in part as the input device described within the scope of the housing device.

[0061] In an advantageous improvement of the mobile device, the actuator includes at least two operating areas. Specifically, the movement of the actuator can be selectively damped depending on which operating area is being operated on, and in particular, touching the actuator can be specifically damped.

[0062] Another mobile device according to the invention is particularly designed as a smartphone, tablet, or other type of handheld device or mobile smart device. The mobile device is designed to be at least partially foldable. For this purpose, the mobile device, particularly its main body, comprises at least two device components. The device components are movably connected by at least one hinge mechanism. Here, the hinge mechanism is equipped with at least one magnetorheological braking device. The magnetorheological braking device is adapted and designed to specifically dampen the relative movement of the device components.

[0063] This mobile device is also advantageous in accomplishing the aforementioned tasks. The mobile device according to the invention can be equipped with an input device. In particular, the input device and / or braking device and / or hinge mechanism are designed as previously described for other mobile devices and / or housing devices.

[0064] In particular, the input device is integrated into the hinge mechanism. Specifically, the rotation axis of the input device is arranged along and extends parallel to the rotation axis of the hinge mechanism. These rotation axes can also be identical. In particular, these rotation axes are arranged on the same straight line.

[0065] In particular, the braking device is integrated into the hinge mechanism. Specifically, the hinge mechanism of the mobile device has at least one rotation axis about which the device components can pivot. Specifically, the rotation axis extends along or is parallel to the rotation axis of the magnetorheological braking device. These rotation axes can also be identical. Specifically, these rotation axes are arranged in a straight line.

[0066] Preferably, the hinge mechanism and / or braking device protrudes beyond the width and / or height and / or length of the folded equipment body only on one side or not on either side. The hinge mechanism and / or braking device may also protrude only on two or only three sides. The hinge mechanism and / or braking device preferably has a maximum diameter and / or maximum height and / or width equal to or less than the thickness of the folded equipment body. The hinge mechanism may at least partially extend beyond the circumference of the equipment body. The hinge mechanism may be arranged within the circumference of the equipment body.

[0067] The applicant retains a book-style support, particularly for mobile devices, designed to be at least partially foldable and comprising at least two support sections. The support sections are movably connected by at least one hinge mechanism. Here, the hinge mechanism includes at least one magnetorheological braking device adapted and designed to specifically dampen relative movement of the support sections. In particular, this braking device and / or hinge mechanism is designed as described above for mobile devices and / or housing devices. Here, an input device can also be integrated into the hinge mechanism of the book-style support, as previously described.

[0068] The input device of the present invention is suitable for and designed for use in one of the aforementioned housing devices and / or one of the aforementioned mobile devices.

[0069] The method according to the invention is used to operate one of the aforementioned housing devices and / or one of the aforementioned mobile devices.

[0070] It is possible that the input device is at least partially mounted on and / or within the support. The support is particularly capable of being connected to or attached to the mobile device and, in particular, its main body. In particular, the support is at least partially, and preferably entirely, arranged within the main body.

[0071] The input device is preferably connectable, and in particular, connectable to a mobile device. Specifically, the input device, preferably at least the braking device and / or control device and / or sensor device, can be powered through at least one energy storage device in the mobile device. In particular, the input device and the mobile device are in a valid connection.

[0072] It is preferable to provide at least two hinge mechanisms for the housing and / or mobile device, with their rotation axes arranged in a straight line. Here, only a portion of the hinge mechanism may have an input device.

[0073] It is also possible that the input device and the hinge mechanism are set separately. It can be specified that the rotation axes of the hinge mechanism and the input device are located on the same straight line, arranged parallel to each other, or extend transversely to each other.

[0074] The input device can be fixedly connected to the housing. Alternatively, the input device can be detachably connected to the housing, and in particular, can be freely detached without tools. In particular, the input device is integrated into the housing.

[0075] In particular, the operating element is designed to be rotatable. Specifically, the operating element can be rotatably mounted relative to a shaft or another support structure. Such a support structure can be provided, in particular, through the first or second braking component of the braking device.

[0076] The outer casing can be designed, for example, in the form of a cover. For instance, the outer casing surrounds the mobile device in a cover-like shape. The outer casing can be designed for insertion into the mobile device. In particular, a cover-like outer casing is specified. Other embodiments are also possible.

[0077] The input device is particularly located on the side of the housing. The input device is particularly positioned on one side extending between the front and back of the housing. Specifically, the input device is located on the left, right, upper, or lower side. Two or more input devices may also be provided on one or more sides. The input device may also be arranged on the front and / or back of the housing.

[0078] The control device is particularly suitable and designed to apply at least one specified decelerating torque to the rotational motion of the operating element in one and / or two directions of rotation and / or by a specified rotation angle and / or at a specified speed and / or at a specified operating force, based on control commands. This allows for targeted deceleration and / or locking and / or release of rotational motion.

[0079] In particular, the control device is adapted and designed to variably and / or continuously dampen the rotational movement of the operating element with time and / or rotation angle according to control commands.

[0080] Of particular preference in all designs is that the actuating element is designed to be at least rotatable for controlling the mobile device. In particular, the rotational movement of the actuating element can be selectively damped by means of a magnetorheological braking device.

[0081] Preferably and advantageously, the actuating element can also be pressed and / or pulled to control the rotational nature of the mobile device. Preferably, the rotational movement can then be selectively damped by means of a braking device. Pressing and / or pulling is therefore preferably designed without selective damping.

[0082] It is possible that the actuating element is designed to control the mobile device to move at least linearly (i.e., along its longitudinal axis) and, in particular, to be pressable, movable, and / or pullable. Specifically, in this embodiment, the actuating element is provided with at least one push button. Thus, the linear movement of at least the actuating element can be selectively damped, particularly by means of a magnetorheological braking device.

[0083] It is also possible that the operating element can be rotated to control the linear movement of the mobile device. Thus, this linear movement can be specifically damped by means of a braking device. The rotational movement is therefore specifically designed to be undamped.

[0084] Particularly preferred is that the actuating element includes at least one operating roller, and preferably at least one finger wheel, or is designed to have such an operating roller. A finger wheel, in particular, refers to a thumbwheel. The operating roller is particularly rotatable about its axis of rotation to complete input. The operating roller can be pressed and / or pulled laterally to its axis of rotation to complete input. During pressing (pushing), rotation of the actuating element (particularly the operating roller and / or knob) can be prevented, making pressing more comfortable and reliable because there is no undesirable backspinning when pressing, for example, the operating roller (due to increased torque or locking of the operating roller rotation during pushing).

[0085] The operating element may also include at least one knob and / or at least one button, or be designed as such. Knobs, in particular, can rotate about a rotation axis to complete input. Knobs, in particular, can be pressed and / or pulled in the direction of their longitudinal axis or rotation axis to complete input. It is also possible that the knob can be pressed and / or pulled laterally to its rotation axis. Buttons, in particular, are moved along a linear axis of motion to complete input. Buttons, in particular, can be rotated about a linear axis of motion to complete input.

[0086] In all designs, it is particularly preferred that the input device be sized such that it can be installed in a structural space having a height and / or width and / or diameter of at most 12 mm, and especially preferably at most 10 mm. An operating element, preferably an operating roller, is provided, with a diameter of at most 12 mm, preferably at most 10 mm. These requirements can be advantageously achieved by means of the magnetorheological braking device proposed within the scope of this invention.

[0087] In particular, the braking device can be controlled by the control device to achieve at least one of the method steps, functions, or operating modes. Preferably, the method steps, functions, or operating modes can also be implemented in combination with each other.

[0088] In an advantageous design, the sensor device preferably includes a sensor mechanism with at least one sensor (such as an encoder, rotation sensor, Hall sensor, etc.). The sensor is, for example, an angle sensor, and especially a rotation angle sensor. It can measure absolute position (e.g., an absolute sensor) or relative position. The sensor mechanism can obtain the angle of the operating element directly or indirectly through the position of another component, especially a braking device. For example, it measures the angular position and / or rotation angle of the braking device. The measured angle is preferably provided to a control device for controlling the braking device.

[0089] The holding torque / reducing torque is adjusted to such a high level that the operating element can continue to move even with greater force. However, the reducing torque can also be set so high that the operating element is locked under the manual force required for operation. Continued movement of the operating element under the conditions of greater force and / or locking can be achieved in at least one or both rotational directions.

[0090] Control commands can be issued independently of input and / or as feedback to input performed using a mobile device or input device. In particular, control commands are used to adjust and reduce torque. Control commands can relate to at least one real operating condition and / or at least one condition simulated by software.

[0091] In particular, the control device is suitable and designed to receive control commands and then adjust the deceleration torque, at least in consideration of the control commands. In particular, the control device is also suitable and designed to perform the above-described and / or the following braking device control, at least in part, based on the control commands.

[0092] Preferably, the control device is adapted and designed to convert control commands into at least one tactile signal (force / torque change) that can be felt on the operating element, especially enabling the user to obtain tactile feedback (e.g., greater force at the human-machine interface) as a result of the completed input.

[0093] In particular, the mobile device can specifically influence the movement or damping of the actuator. This allows for the advantageous implementation of haptic feedback (e.g., force feedback). The haptic signal preferably includes at least one prescribed sequence of damping torques. The haptic signal particularly preferably includes at least one prescribed sequence of (rapidly) changing damping torques or forces (also known as ripples / beats / grids) at the human-machine interface.

[0094] Individual feedback can be distributed by software in the form of artificial intelligence.

[0095] In particular, any number of grid positions achievable by available braking devices can be adjusted at any position within the suitable range of motion or rotation of the operating element. Specifically, the grid positions can be adjusted based on rotation angle and / or time and / or control commands. Furthermore, the grid positions are defined at least by the rotation angle and the mitigating torque.

[0096] This control device is particularly suitable for and designed to increase the deceleration torque from a predetermined rotation angle before reaching the grid position and / or decrease the deceleration torque from a predetermined rotation angle after leaving the grid position.

[0097] Mitigating the increase and / or decrease of torque can be done continuously or variably in all designs (with time and / or angle).

[0098] In a particularly advantageous design, the control device is adapted and designed to slow and release the movement of the operating element in a targeted sequence by means of the braking device. To achieve this sequence, the control device is particularly adapted and designed to adjust different magnitudes of slowing torque for slowing and releasing. This sequence (ripples) also provides reliably perceptible tactile feedback under difficult operating conditions and can be well implemented using the present invention.

[0099] This sequence specifically consists of a sequence with a relatively maximum value of higher deceleration torque and a relatively minimum value of lower deceleration torque. Specifically, the angular spacing of one cycle between adjacent relative maximum values ​​is adjustable and is regulated. Furthermore, the variation curve of the deceleration torque within one cycle is regulated according to the set operating mode. This sequence with very short intervals can also be referred to as a ripple / beat. In particular, this sequence is constructed by a predetermined combination of deceleration torques as a function of time and / or angle. Preferably, the deceleration torques used for deceleration and / or release are set as a function of time and / or as a function of angle and / or according to control commands.

[0100] The mitigating torque of the sequence is started and / or maintained and / or ended, particularly in relation to angle and / or time. Preferably, the switching of this correlation within a sequence can also be specified. For example, the start of the sequence is related to angle or time, and the length of the sequence is thus adjusted in relation to time or angle.

[0101] Preferably, the control device is adapted and designed to initiate the deceleration torque in a time-dependent manner and maintain the deceleration torque of the sequence in a time-dependent manner. In particular, the control device is adapted and designed to omit the adjustment of the deceleration torque set in the sequence when the angle position (a certain rotation angle of the operating member) set for initiation is swung upward during the maintenance of the deceleration torque.

[0102] Particularly preferably, the control device is adapted and designed to tune different damping torques of the sequence at a purposeful frequency, preferably at such a frequency, so that the movement of the operating element is damped by targeted vibrations. This frequency is particularly at least 20 Hz, preferably at least 50 Hz.

[0103] This control device is particularly suitable for and designed to dynamically adjust different deceleration torques in relation to the time and / or angle and / or speed of motion (angular velocity) of the operating element and / or the number of deceleration torque adjustments performed.

[0104] This control device is particularly suited to and designed to regulate a sequence of targeted, varying mitigating torques. Specifically, a sinusoidal or cosine curve is specified for this purpose. This curve is particularly characterized by a (slight) negative offset. The offset is particularly less than 30%, particularly less than 20%, and preferably less than 10%. Specifically, the curve is specified to have at least two zero crossings per cycle. Specifically, the braking device is controlled by a sinusoidal or cosine signal with a predetermined and particularly adjustable (slight) offset from zero.

[0105] Preferably, the control device is adapted and designed to control the braking device at an adjustment frequency of at least 5 kHz, preferably at least 10 kHz, and particularly preferably at least 50 kHz. In particular, the braking device is adapted and designed to achieve this adjustment frequency.

[0106] In particular, the control device is suitable for and designed to dampen the braking device in real time. Specifically, the braking device is suitable for and designed to convert and reduce torque in real time. Furthermore, the damping can be adjusted in real time, in relation to angle and / or time, and / or control commands and / or the angular velocity of the operating element, via the control device of the braking device.

[0107] In particular, the braking device is suitable for and designed to change the mitigating torque by at least 30% in less than 100 milliseconds. In particular, the mitigating torque can be changed by at least 10%, preferably at least 30%, and particularly preferably at least 50% in less than 10 milliseconds. The mitigating torque can also be changed by at least 100%, 500%, tenfold, or thousandfold in less than 100 milliseconds.

[0108] Magnetorheological braking devices are preferably suited and designed to provide at least 30,000 increments, particularly 30,000 increments per revolution, for the pivot of the operating element, especially by means of sensors, speed sensors, or incremental sensors. Incremental sensors, for example, provide a predetermined number of pulses per revolution or so-called zero pulses per revolution. They can be incremental sensors or absolute sensors with UVW signals. Therefore, tactile signals can be realized very effectively. In particular, increments can be used to provide the aforementioned feedback and sequence. Specifically, the braking device can provide at least 30,000 increments per revolution. Sensor devices can particularly include those providing at least 30,000 increments per revolution for the braking device.

[0109] Preferably and advantageously, the braking device is designed as a magnetorheological transmission device or includes at least one such device. Preferably, the magnetorheological transmission device is equipped with at least two engageable components whose engagement strength can be influenced, wherein at least one channel is provided to influence the engagement strength, wherein the channel is filled with a magnetorheological medium containing magnetically polarizable particles that are susceptible to magnetic field influence, and wherein at least one field generating device is configured to generate at least one magnetic field within the channel to influence the magnetorheological medium within the channel, wherein one component, as an outer component, surrounds another component, as an inner component, and at least one of the two components is mounted by at least one separate support, and the distance between the outer and inner components is at least 10 times the typical average diameter of the magnetically polarizable particles, and the channel is at least partially resistant to the magnetic field of the field generating device to selectively chain or release particles. In particular, the field generating device of the transmission device can be controlled by the control device to selectively adjust and adjust the mitigation torque.

[0110] The operating element is thus associated with one of the two engageable parts and is connected to it in a non-rotatable manner.

[0111] Magnetorheological transmission devices that are particularly advantageous and suitable for use in the braking device of the present invention are described, for example, in DE102010055833A1 and WO2012 / 034697A1. The entire disclosure of DE102010055833A1 and / or WO2012 / 034697A1 is preferably part of the disclosure of this application.

[0112] Magnetorheological braking devices particularly well suited for use in this invention are also described, for example, in DE102018100390A1 and WO2019 / 138015. The full disclosures of DE102018100390A1 and WO2019 / 138015 are preferably incorporated herein by reference. Such braking devices may also be referred to as wedge supports or magnetic field concentrators.

[0113] The aforementioned braking devices can be advantageously used in the input devices of the present invention. They can apply the required deceleration torque and are smooth and can be adjusted in real time if needed, while being compact in structure, i.e., they can be installed in a housing, mobile device, or hinge.

[0114] An input device of a housing or mobile device has a magnetorheological braking device housed on the housing or mobile device. The magnetorheological braking device has at least two braking components. A first braking component is non-rotatably connected to the housing or mobile device and extends axially. A second braking component includes a hollow rotating portion (particularly cylindrical on the inside) rotatable around the first braking component. An annular gap (operating gap) is formed between the first and second braking components. This gap is at least partially filled with a magnetorheological medium. Here, the magnetorheological medium defines the first and second braking components. The first braking component includes a core made of a magnetically permeable material extending axially and (at least) an electric coil. The electric coil is preferably wound axially around the core and preferably defines a coil plane such that the magnetic field of the electric coil preferably extends laterally (about axially) through the first braking component. Here, the maximum (outer) diameter of the electric coil radially within the coil plane is preferably greater than the minimum (outer) diameter of the core radially transverse (especially substantially perpendicular or perpendicular to) the coil plane.

[0115] The first braking component defines the axial direction. However, the first braking component may also be designed, at least partially, to be at an angle relative to the axial direction. The statement that the core of the first braking component extends axially means, in the sense of the invention, that the core extends at least substantially axially. The core may have an orientation preferably parallel to the axial direction, but may also have a small angle relative to the axial direction. For example, the core may be oriented at an angle of 2.5 degrees (°), 5°, 10°, or 15° relative to the axial direction. The winding of the coil does not necessarily have to be oriented exactly around the core in the axial direction. The coil may also be wound around the core at an angle of 5°, 10°, or 15°, etc., relative to the axial direction. However, in all cases, it is preferred that the angle between the core orientation and the axial direction and the angle of the coil relative to the axial direction be less than 20°, and especially less than 10°.

[0116] A particular advantage is obtained when the coil is wound axially around at least one major portion or entirely around the core. A larger core diameter can be achieved when the maximum outer diameter of the coil in the plane of the coil in the radial direction is greater than the minimum diameter of the core in the radial direction transverse to, and especially at least substantially perpendicular to, the plane of the coil. A larger core diameter allows for the generation of a stronger magnetic field (a higher field strength within the working gap). This allows for the generation of a larger braking force within the same structural space, or the same braking force within a smaller structural space, thus increasing the torque per unit volume of the structure. It is also feasible, if desired, to generate a considerable braking force within a very small structural space. This simplifies installation in the housing device. This is because the magnetic field of the coil extends transversely to the axial direction of the first braking element (i.e., radially along the longitudinal axis), and the diameter of the coil is increased.

[0117] Within the scope of this invention, the terms "damping" and "mitigation" are preferably used synonymously. Here, the control device is particularly suited to and designed to selectively reduce and release the movement of the operating element in both directions and lock the manual force on the operating element as intended for operation.

[0118] This control device is particularly suitable for and designed to adjust the braking torque of the braking device to specifically dampen motion. In particular, the control device is suitable for and designed to dynamically adjust the braking torque.

[0119] Preferably, the control device can adjust the mitigating torque generated by any available braking device for the rotation angle and / or adjustable duration obtained by any available operating element. In particular, the control device includes multiple adjustable operating modes and is preferably adapted and designed to distribute the mitigating torque and rotation angle and / or duration according to the operating mode.

[0120] The control device, especially an electronic control device, includes, in particular, at least one control algorithm. Specifically, the adjustment of the torque reduction is achieved by driving the electric coil mechanism of the braking device with a specified current and / or specified voltage or an appropriate signal.

[0121] Within the scope of this invention, the release of motion specifically refers to the presence of only the basic torque of the braking device suitable for operation, without any additional magnetorheological mitigation caused, for example, by energizing the coil mechanism of the braking device. If the motion is released, the magnetorheological braking device becomes particularly ineffective, thereby failing to generate a field for actively influencing the magnetorheological medium of the braking device. Attached Figure Description

[0122] Other advantages and features of the present invention arise from the following description of embodiments explained with reference to the accompanying drawings, which illustrate: Figures 1 to 5 A schematic diagram of the housing device of the present invention is shown; Figure 6 A schematic sketch showing the curve of the mitigation torque as a function of rotation angle; Figure 7 A simple schematic diagram of another housing device of the present invention is shown; Figure 8 A schematic diagram of the mobile device of the present invention is shown; Figure 9 A highly schematic cross-sectional view of the rollers in a magnetorheological braking device is shown; Figure 10 A schematic cross-sectional view of the braking device is shown; Figure 11 A good cross-sectional view of another braking device is shown; Figures 12a to 12d Showing according to Figure 10 or Figure 11A schematic cross-sectional view of the braking device; Figures 13a to 13e Another braking device is shown; Figures 14a to 14d The curves showing possible torque variations related to the rotation angle of the braking device are shown. Figure 15 A purely schematic view showing an input device with a transmission unit; and Figure 16 A cross-sectional schematic diagram of an input device with a drive mechanism is shown. Detailed Implementation

[0123] Figure 1 A housing device 500 according to the invention is shown for a mobile device 510, such as a smartphone or tablet computer, which is not shown in detail here. The housing device 500 here includes a housing portion 501 designed as a cover, in which the mobile device 510 can be housed. Here, the housing device 500 is shown as a side view in the left portion of the figure and as a front view in the right portion of the figure.

[0124] The housing portion 501 is provided herein by way of example with a plurality of input devices 502 for controlling the mobile device 510. The number of input devices 502 is used herein to illustrate possible locations on the housing portion 501. The housing portion 501 may also have only a portion of the input devices 502 shown herein or only a single input device 502. The input devices 502 are substantially located on the side of the housing portion 501, so that, for example, the display screen of the mobile device 510 remains uncovered.

[0125] The housing 501 may be equipped with a receiving mechanism 507, which is illustrated herein by way of example. An input device 502 may be selectively installed in the receiving mechanism 507, for example, in a preferred operating position.

[0126] The input device 502 is equipped with an operating element 503 designed as an operating wheel, finger wheel, or thumb wheel. To input data to the mobile device 510, the operating element 503 can be rotated about a rotation axis, preferably with a finger or thumb (hence the name finger wheel or thumb wheel). The rotation axis is located within the housing 501.

[0127] Energy storage device 540, such as a battery, is used here to power input device 502.

[0128] The rotational motion of the operating element 503 is specifically damped by a magnetorheological braking device 1 located inside, which is not visible here.

[0129] To control the braking device 1, a sensor device 505 and a control device 506 are provided, both concealed internally. The sensor device 505 detects the operating position of the operating member 503 and, for example, its rotation angle. The control device 506 controls the braking device 504 based on the detected operating position.

[0130] The following is especially relevant Figures 9 to 1 4. This section will describe in detail the braking device 1, its control or operating method, and its advantageous structure. Referring here... Figures 1 to 8 The proposed operating element 503 is respectively based on Figures 9 to 1 The second braking component 3 of the braking device 1 is provided by 4.

[0131] Figure 2 An embodiment of the aforementioned housing device 500 is shown, which is substantially distinguished from the aforementioned housing device 500 by the shape of the housing portion 501. The housing device 500 is shown here in a perspective view, side view, front view, and rear view from an obliquely upward perspective (from left to right).

[0132] Figure 3 Showing about Figure 2 The design of the housing device 500. The input device 502 shown here is equipped with an operating element 503, which has two different operating areas 508. The operating areas 508 are arranged adjacent to each other in the axial direction. The operating areas 508 differ here, for example, in their surface structure.

[0133] The movement of the operating element 503 can be damped depending on which operating area 508 is input. Furthermore, these operating areas 508 are engaged with the same braking device 1, so that their movement can only be damped jointly or indiscriminately. Additional damping and / or additional tactile feedback are provided depending on which operating area 508 is rotated on the operating element 503. Tactile feedback will be described in detail below. Using an operating area, for example, one can operate as follows: Figure 7 and Figure 8 The dual-display unit (foldable smart device) shown uses one half of the screen for operation, while the other half is operated via a separate control area. Therefore, content (such as a Word document or a newspaper article) can be easily scrolled or moved vertically within each half of the screen, for example.

[0134] exist Figure 4 According to Figure 2 One design of the housing device 500 includes an operating member 503 having three operating areas 508. These operating areas 508 differ in their surface structure. Furthermore, the middle operating area 508 is equipped with a larger diameter.

[0135] Figure 5 The operating element 503 shown on the left has according to Figure 3The two operating areas 508 are shown in the embodiment. The operating element 503 is shown on the right side, having according to... Figure 4 The implementation method of the three operation areas 508.

[0136] A monitoring device 518 is provided to identify which operating area 508 is being used or touched.

[0137] The monitoring device 518 here includes at least one sensor and, for example, a proximity sensor or an image recognition system for each operating area 508. This allows for reliable identification of which operating area 508 the actuator 503 is touched and rotated.

[0138] Figure 6 A favorable torque reduction curve is shown, which is set by the control device 506 on the operating member 503 via the braking device 1. The torque curve will be described in detail below.

[0139] Figure 7 A design of a housing assembly 500 is shown, wherein the housing portion 501 is designed to be foldable. For this purpose, the two housing portions 511 are pivotally connected to each other via three hinge mechanisms 509. For example, the hinge mechanisms 509 shown here may each be equipped with a braking device 1, so that the pivoting movement can be selectively damped, or even locked or fixed in certain positions.

[0140] The hinge mechanism 509 shown here may have all or part of one of the aforementioned input devices 502. Thus, the mobile device 510 can be operated from the hinge mechanism 509 side. It can be specified that the braking device 1 for the input device 502 also dampens the pivoting movement of the hinge mechanism 509.

[0141] Figure 8 A mobile device 510 according to the invention is shown, which here has a foldable device body 520. For folding, the device body 520 is here divided into two device parts 530, which are here rotatably fixed to each other by two hinge mechanisms 509. The hinge mechanisms 509 are here equipped with magnetorheological braking devices 1. Thus, the pivoting movement can be damped or even locked or fixed in certain positions.

[0142] Additionally or alternatively, the mobile device 510 may also be equipped with an input device 502 as sketched herein, such as, for example, referenced Figures 1 to 3 As described above. Here, the input device 502 has an operating element 503 that can rotate about a rotation axis. This rotation axis is thus completely arranged within the device body 520.

[0143] The braking device 1 will now be described in detail.

[0144] Figure 9A highly schematic cross-sectional view is shown of a magnetorheological braking device 1 for a housing device 500 used in a mobile device 510, such as a mobile phone, smartphone, tablet computer, or other type of handheld device or mobile smart device. The magnetorheological braking device 1 is used to influence the force transmission between two braking components 2 and 3. Here, in Figure 9 A roller or rotating body 11 is provided between the two braking components 2 and 3. The roller 11 is designed as a ball 14. However, it is also possible that the roller 11 is designed as a cylinder or ellipse, a roller or other rotatable rotating body. In a narrow sense, non-rotationally symmetric rotating bodies such as gears or rotating bodies 11 with a certain surface structure can also be used as rollers. The rollers 11 are not used to support each other, but to transmit torque.

[0145] A channel 5 is provided between braking components 2 and 3, which is filled with a medium 6. The medium is a magnetorheological fluid, which, for example, contains oil as a carrier fluid, with ferromagnetic particles 19 within the oil. Ethylene glycol, grease, water, and viscous substances can also be used as carrier media, but are not limited to these. The carrier medium can also be gaseous or can be omitted (vacuum). In this case, the channel is filled only with particles that are affected by a magnetic field.

[0146] The ferromagnetic particles 19 are preferably carbonyl iron powder, wherein the particle size distribution depends on the specific application. A particle size distribution between 1 and 10 micrometers is particularly preferred, but larger particles of 20, 30, 40, and 50 micrometers are also possible. Depending on the application, the particle size can also be significantly increased, even entering the millimeter range (particle spheres). The particles may also have special coatings / shells (titanium coating, ceramic, carbon shell, etc.) so that they can better withstand the high-pressure loads that may occur depending on the application. For such applications, the magnetorheological particles can be made not only of carbonyl iron powder (pure iron) but also of, for example, special iron (harder steel).

[0147] The roller 11 is preferably placed in rotation about its axis of rotation 12 by the relative movement 17 of the two braking components 2 and 3 and actually rolls on the surface of the braking component 3. At the same time, the roller 11 moves on the surface of the other braking component 2, and thus there is a relative velocity 18 there.

[0148] Specifically, roller 11 does not directly contact the surfaces of braking components 2 and / or 3 and therefore does not roll directly on them. The free distance 9 of roller 11 from one surface of braking components 2, 3 is, for example, 140 μm. In a specific design where the particle size is between 1 μm and 10 μm, the free distance is particularly between 75 μm and 300 μm, and especially preferably between 100 μm and 200 μm.

[0149] The free distance 9 is at least 10 times the typical average particle diameter. Preferably, the free distance 9 is at least 10 times the largest typical particle. Due to the lack of direct contact, there is very little basic friction / force / torque when the braking components 2 and 3 move relative to each other.

[0150] If the magnetorheological braking device 1 is subjected to a magnetic field, magnetic lines of force are formed according to the distance between the roller 11 and the braking components 2, 3. The roller 11 is made of ferromagnetic material, and in this case, ST37 (S235). The permeability μr of ST37 steel is approximately 2000. The magnetic lines of force (magnetic circuit) pass through the roller and are concentrated within it. At the radial entry and exit points of the magnetic lines of force on the roller, a high magnetic flux density exists within the channel 5. The non-uniform strong field there leads to localized strong crosslinking (magnetic linkage) of the magnetically polarizable particles 19. The effect is significantly enhanced due to the rotational movement of the roller 11 toward the formed wedge (pile) in the magnetorheological fluid, and the possible braking torque or clutch torque is greatly increased, far exceeding the level that can usually be generated in magnetorheological fluids. The roller 11 and the braking components 2, 3 are preferably at least partially made of ferromagnetic material, which is why the smaller the distance between the roller 11 and the braking components 2, 3, the higher the magnetic flux density. As a result, a basically wedge-shaped region 16 is formed in the medium, in which the magnetic field gradient increases sharply at an acute angle toward the contact point or the region of minimum distance.

[0151] Regardless of the distance between roller 11 and braking components 2 and 3, roller 11 can be put into rotational motion by the relative velocity of their surfaces. Rotational motion can be achieved both in the absence of magnetic field 8 and with the presence of magnetic field 8.

[0152] When the magnetorheological braking device 1 is exposed here Figure 9 When the magnetic field 8 of the coil 26 (not shown) acts on the magnetorheological fluid 6, individual particles 19 chain along the field lines of the magnetic field 8. It should be noted that... Figure 2 The drawn vectors only roughly represent the field line regions related to the MRF effect. The field lines enter channel 5 substantially perpendicular to the surface of the ferromagnetic component, and do not necessarily extend in straight lines in the acute-angle region 10.

[0153] Simultaneously, on the circumference of roller 11, some material is rotated by the magnetorheological fluid, thereby forming an acute-angle region 10 between the braking component 3 and roller 11. On the other side, the same acute-angle region 10 appears between roller 11 and braking component 2. The acute-angle region 10 can, for example, have a wedge shape 16 in the case of a cylindrical roller 11. Determined by the wedge shape 16, further rotation of roller 11 is prevented, thus strengthening the effect of the magnetic field on the magnetorheological fluid, because the magnetic field acting within the acute-angle region 10 causes stronger cohesion of the medium 6. The effect of the magnetorheological fluid in the resulting aggregate is enhanced (chaining and therefore cohesion or viscosity in the fluid), making further rotation or movement of roller 11 difficult.

[0154] Wedge 16 (particle agglomeration) can transmit significantly greater forces or moments compared to similar structures that rely solely on shear motion without a wedge effect.

[0155] The force that can be directly transmitted through an external magnetic field is only a small fraction of the force that the device can transmit. The formation of a wedge and thus the mechanical force enhancement can be controlled by the magnetic field. The mechanical enhancement of the magnetorheological effect can be so great that force can still be transmitted if the particles have already wedged in, even after the external magnetic field is turned off.

[0156] The results show that the wedge action in the acute-angle region 10 produces a significantly greater effect than the magnetic field 8 of a certain intensity. Here, the effect can be amplified many times over. In one specific case, the interaction of the relative velocities of the two braking components 2 and 3 was observed to be approximately ten times greater than that of a conventional MRF clutch based on the shear principle, where a magnetorheological fluid is arranged between two relatively moving surfaces and the surfaces are exposed to shear forces. The potential enhancement of the wedge action here depends on various factors. Perhaps this can be enhanced by making the surface of the roller 11 rougher. It is also possible that outwardly protruding protrusions are provided on the outer surface of the roller 11, which could lead to a stronger wedge formation.

[0157] The wedge action or wedge effect is distributed in a planar manner on roller 11 and component 2 or 3.

[0158] Figure 10 A cross-section of the input device 502 forming the device component 200 is shown. The input device 502 includes a magnetorheological braking device 1, which has two braking components 2 and 3. The first braking component 2 and the second braking component 3 extend substantially along the axial direction 20. The first braking component 2 is arranged within the second braking component 3 and is held by a support 4 in a form-fit and / or force-fit manner. The support 4 is fixed to the housing device 500 or the moving device 510 as specified. The second braking component 3 is rotatably housed thereon relative to the first braking component 2. The second braking component 3 forms a rotatable operating element 503, which can be operated by a user, for example, with a finger.

[0159] The second braking component 3 is designed as an elongated strip and has a rotating part 13 and a magnetically permeable sleeve part 13e therein.

[0160] The second braking component 3 is rotatably housed at the first support point 112 and the second support point 118 on the second braking component 2 and can also be mounted axially movable. At the support points 112 and 118, forces can be supported by the support 30 in the global radial direction 122, while the first braking component 2 can move axially relative to the second braking component 3. The diameter 116 of the first support point 112 is approximately twice the diameter 117 of the second support point 118.

[0161] The second braking component 3 is extended at both ends. A closed chamber 110 is formed between the braking components 2 and 3, which is filled with magnetorheological fluid (MRF). In the region of the first end 111 of the chamber 110, a cylindrical working surface is formed on the support 4 as a first support point 112. There is a hardened surface or a surface with a corresponding mass there. A support 30 for rotatably mounting the second braking component 3 is attached to the cylindrical working surface 37. A seal 38 is disposed further inward in the axial direction 20 closer to the support 30. The seal 38 reliably seals the interior. The first braking component 2 has a body 33. The windings of the coil 26 are wound on the core 21. Here, some windings of the coil 26 protrude outward beyond the cylindrical body 33 (see Figure 12).

[0162] There is a radial gap 5 between the outer wall of the first braking component 2 and the inner wall of the sleeve portion 13, which is basically designed as a hollow cylindrical gap. A plurality of transmission components 11, designed as rollers, are arranged in the gap. The rollers 11 are designed as cylindrical rolling elements and have an outer diameter slightly smaller than the gap width 5. The gap 5 is also filled with a magnetorheological medium.

[0163] In one region of the gap, an O-ring filled with air or another gas can be arranged to provide volume compensation in the event of temperature fluctuations. Furthermore, if the magnetorheological fluid or medium overflows from the inside to the outside during operation, a reservoir is formed there. Here, this structure is used to provide automatic temperature compensation and reservoir for the MRF through different sizes of diameters 116 and 117.

[0164] The (available) clearance length of gap 5 is greater than the length of roller 11. Here, the coil is also designed to be longer than the length of roller 11 in the axial direction 20.

[0165] The core 21 can be seen inside the coil 26. The support 4 has a radially enlarged receiving portion 36 (diameter 36a, see below). Figure 11The support 4 is used to house the first braking component 2 in a non-rotatable manner. A cable sheath extends downwards through the support 4. There, the cable 45 for connecting the coil 26 and possibly sensor wires are led out. The control device 27 can be mounted or attached to the base of the support 4 or other suitable location to perform control as needed.

[0166] A closed cavity 110 is formed between the first end 111 and the second end 15. The volume 114 contained in the closed cavity 110 is substantially completely filled with the magnetorheological medium 6.

[0167] Due to the different diameters 116 and 117 of the two support points 112 and 118, the volume change of the magnetorheological medium 6 causes the first braking component 2 to have a relative axial displacement relative to the second braking component 3.

[0168] When the first braking component 2 is stationary, the second braking component 3, with its increased volume, [continues to function]. Figure 3 The first braking component 2, with a diameter of 116 at the first support point 112, moves to the right. A small portion of the first braking component 2, with a diameter of 116 at the first support point 112, exits the closed chamber 110, while a portion of the first braking component 2, with a significantly smaller diameter at the second end 115, enters the closed chamber 110. As a result, the volume 114 of the closed chamber 110 increases. This effectively compensates for volume changes in the magnetorheological medium 6 caused by temperature increases. The function of the magnetic field generating device 113 is thus unaffected. In the event of a volume reduction that may be caused by temperature or leakage, the second braking component 3 is moved to the left.

[0169] During movement, ambient pressure is always present within the magnetorheological braking component 1. Therefore, it is important to prevent additional loads on the seal 38. In the case of a bubble compensation device, the inner cavity is always under overpressure, resulting in greater leakage and greater friction due to the need for a better seal.

[0170] A balancing channel 120 can be provided, which connects the areas near support points 112 and 118 to each other. Therefore, when the magnetorheological medium 6 moves, the throttling effect of the gap will be reduced if the gap is to be small.

[0171] Furthermore, the magnetorheological braking device 1 includes at least a sensor device 70 for detecting the relative angular position of the two braking components 2 and 3. Detection is performed using a magnetic ring unit 71 and a magnetic field sensor 72. The sensor device 70 is connected to the second braking component 3 via a decoupling device 78. The decoupling device 78 magnetically decouples the sensor device. The sensor device 70 also includes a shielding mechanism 75, which comprises multiple shielding bodies 76 surrounding the magnetic ring unit 71 on three sides. An isolation unit 77 is located between the magnetic ring unit and the shielding mechanism 75. The isolation unit 77 also shields the magnetic ring unit 71. Thus, the volume defined by the magnetic ring unit 71 is substantially shielded from the magnetic influence of the coil 26 or other magnetic fields.

[0172] Figure 11 A cross-sectional view of another input device 502 with a similar magnetorheological braking device 1 is shown. The operating element 503 of the input device 502 is either rotatably housed on one side of the housing device 500, or a short shaft is also formed on the second end so that the operating element 503 of the input device 502 can be rotatably mounted. A transverse groove 32 can be seen, in which the coil 26 is wound around the axial ends of the core 21. Axially, fillers 28 are respectively provided at both ends for sealing. A separate seal is provided in the cable sheath 35 region, for example by means of an O-ring as shown.

[0173] It is also possible that some of the rollers distributed on a portion of the circumference are designed as non-magnetic transmission components. Preferably, all rollers are made of a magnetic material such as steel.

[0174] The length or height 13c of the rotating part 13 and the sleeve part 13e, or the second braking component 3, in the axial direction 20 is preferably between 3 mm and 90 mm, particularly between 5 mm and 30 mm. A cover 49 may be provided on the outside of the second braking component 3, such that the appearance of the operating knob 23 is substantially defined by the surface of the cover 49. Different sections can be distinguished by different surfaces.

[0175] The material of the sleeve portion 13e or the rotating portion 13 is generally magnetic and is used to close the magnetic circuit. The wall thickness 13d of the sleeve portion 13e is preferably at least equal to half the diameter of the roller 11.

[0176] The diameter 36a of the groove 36 is preferably much larger than the diameter 37a of the cylindrical working surface 37. This reduces friction on the seal 38. Furthermore, standardized bearings can be used.

[0177] Alternatively, the core 21 and the support 4 can be designed as a two-piece unit. Isolation is preferably along... Figure 11The centerline shown extends, thus creating a left and right half (core). The two half-cores can be separated from each other by non-magnetic elements (e.g., seals). Preferably, the filler volume 28 is then part of the half-core, resulting in a semi-circular member with a surrounding groove at the interface for the coil. The receiving groove 36 is also preferably divided into two halves. A half-groove can also be formed as a single part with the half-core (integral manufacturing), or a half-core can be designed as an integral part with the complete receiving groove unit 36.

[0178] Here, the input device 502 with the magnetorheological braking device 1 is mounted on one side. The second braking member 3 is accommodated only at one end 121 of the first braking member 2 at the first end of the closed chamber 110, that is, the second braking member 3 is supported by the support 30 only at the first support point 112. The second braking member 3 can reciprocate slightly when the volume of the closed chamber changes. Here, it is assumed that the first braking member 2 is fixed. In this case, a portion of the diameter 116 of the first braking member 2 extends or retracts at the first support point 112. The volume 114 of the closed chamber 110 changes. Advantageously, the system is always under ambient pressure within a certain range of motion. Additional loads on the seal 38 are prevented.

[0179] Figures 12a to 12d Various schematic cross-sections of the magnetorheological braking device 1 are shown, which can be advantageously used according to... Figure 10 and 11 The input device 502 and other embodiments.

[0180] The inner braking component 2 is designed to be stationary and surrounded by the continuously rotatable braking component 3. The second braking component 3 has a rotating portion 13 designed as an inner hollow cylinder that can rotate about the first braking component. The surrounding gap 5 between the first and second braking components 2 and 3 is clearly visible. The gap 5 is at least partially, and particularly completely, filled with a magnetorheological medium 6. The first braking component 2 has a core 21 extending along the axial direction 20 and made of a magnetically conductive material, and an electric coil 26 wound along the axial direction 20 on the core 21 and defining a coil plane 26c. The magnetic field 8 of the electric coil 26 extends transversely to the axial direction 20 through the first braking component 2 or the core 21.

[0181] It can be clearly seen that the maximum outer diameter 26a of the electric coil 26 in the coil plane 26c in the radial direction 26d is greater than the minimum outer diameter 2lb of the core 21 that is transverse to and, for example, perpendicular to the coil plane 26c in the radial direction 25.

[0182] Rollers 11 are arranged only in corner segments 61 and 62 and cannot rotate completely around core 21 because coil 26 protrudes into gap 5 or channel, thus preventing complete encirclement.

[0183] This results in less space available for roller 11. However, this leads to a denser magnetic field 8. Figure 12a Three magnetic field lines are shown as examples.

[0184] exist Figure 12b In this configuration, the roller 11 is not housed on the cylindrical outer surface of the core 21, but rather in a groove 63 specifically adapted to the contour of the roller 11. The roller 11 is preferably received and guided in the groove 63 with a slight gap. It is advantageous for the magnetic field 8 to transfer into the roller 11 because more transmission surfaces are available between the outer surface 64 of the core 21 or the groove 63 and the roller 11.

[0185] The coil is located outside corner segments 61 and 62. Roller 11 is not located outside corner segments 61 and 62.

[0186] Figure 12c and Figure 12d A further improvement is shown, completely abandoning roller 11. Core 21 has an outwardly projecting drive member 11 that extends radially outward from the body 33. Figure 12c In the middle, the chamber 110 between the core 21 and the rotating part 13 is filled with MRF.

[0187] The maximum outer diameter 26a of coil 26 is greater than the minimum core diameter 21b. The radial extension dimension of gap 5 varies circumferentially. There is only a small gap dimension 65 at the outer end of transmission component 11, while the radial distance 66 between braking component 2 and braking component 3 is much larger at other locations.

[0188] Figure 12d Show Figure 12c In one variation, the chamber is filled with filler 28 within a cylindrical section to reduce the MRF volume. This reduces the required amount of MRF. The radial distance 66 is significantly reduced, but still much larger than the radial gap dimension 65 (at least 2, 3, 5, or 10 times larger). This ensures the wedge effect (material agglomeration) occurs. The MRF particles chain together in the acute-angle region and form a wedge, resulting in a significant braking torque. Figure 12c and Figure 12d In the middle, the transmission component 11 forms a radial arm 11d.

[0189] Figures 13a to 13d Another embodiment of the input device 502 for the housing device 500 or the mobile device 510 is shown, which here again includes a magnetorheological braking device 1 and includes braking components 2 and 3. Again, a “transverse coil or axial coil” is used, wherein the coil 26 is wound around the core 21 in the axial direction 20 and again has a maximum radial coil diameter 26a greater than the minimum core diameter 2lb of the core 21. Here, rollers or transmission elements are not arranged over the entire circumference.

[0190] Here, device component 200 is designed as input device 502. The second braking component 3 is housed at support point 112 at the first end of the closed chamber 110. Furthermore, the second braking component 3 is housed on the first braking component 2 at the second support point 118. Here, this mounting is achieved at the second support point 118 by means of a short shaft 119 having a diameter of 117. A sealing ring 46 prevents the magnetorheological medium from flowing into the area behind the short shaft 119.

[0191] The diameter 117 at the second support point 118 is designed to be significantly smaller than the diameter 116 at the first support point 112. Therefore, volume change is also achieved here under axial displacement. Volume changes caused by temperature and volume changes caused by leakage can be compensated. For this purpose, relative axial movement of the first braking component 2 relative to the second braking component 3 is performed.

[0192] Additionally, a sensor device 70 for detecting the angular position of the input device 502 is also provided here. The magnetic field sensor 72 is integrated into the stationary reservoir 4 or the first braking component 2. At the reservoir 36, the cable 45 of the magnetic field sensor 72, i.e., the sensor wire 73, extends outward through the cable conduit 35.

[0193] The first shaft or support of the braking component 2 can be as follows: Figure 13b and Figure 13c The design is preferably a two-piece unit. This simplifies the installation of wiring, particularly the sensor wire 73, within the first braking component 2. The cable can be laid through an open cable conduit 35.

[0194] exist Figure 13d The sensor device 70 is shown in detail again. The first braking component 2 and the second braking component 3, which is designed as a rotating part here, are only shown (dashed lines). The sensor device 70 is magnetically decoupled and supported on the rotatable second braking component 3 by a decoupling device 78. The shielding mechanism 75 here consists of three shields 76, which prevent the leakage of the magnetic field 8 of the coil 26. In addition, an isolation unit 77 for magnetic isolation is provided. The magnetic ring unit 71 is used to measure the orientation or rotation angle of the magnetorheological braking device 1. The magnetic field sensor 72 is arranged inside the first braking component 2. In addition, relative axial movement is not used to detect, for example, the pressing of the operating button 101.

[0195] Figure 13e A highly schematic view of the operating device 502 is shown, in which the inner braking component 2 is designed to be fixed and surrounded by a rotatable braking component 3. For this purpose, the braking component 3 may have a pin and a hollow cylindrical portion. The pin can be gripped and rotated, at which point the braking function is achieved within the hollow cylindrical portion. This design is feasible in all embodiments.

[0196] exist Figure 14a, Figure 14b and Figure 9 Figure c shows a possible variant implementation for controlling the dynamically generated magnetic field or the dynamically generated braking torque based on the rotation angle.

[0197] Here, Figure 14a A variation is shown in which the input device 502 is used as a roller and tactile operating aid. Rotational resistance related to the rotation angle is shown. Using the control device 27, a left end stop 228 and a right end stop 229 can be generated. As the knob 23 is continued to rotate, a large magnetic field or high stopping torque 238 is generated there, thereby acting with high resistance to rotation on the knob 23. The user receives tactile feedback from the end stops.

[0198] This allows for the gridding of rotational motion. For example, it can be used to navigate and select menu items via a graphical menu. Here, a first grid point 226 is located directly next to the left end stop 228, which, in operation, corresponds, for example, to the first menu item. If the next menu item should be selected, the knob 100 must be rotated clockwise. For this, a dynamically generated higher magnetic field or stopping torque 239, or its frictional torque, must be overcome before reaching the next grid point 226. Figure 14a For a certain angular range, a constant magnetic field is generated at grid point 226 and the region in between, which is significantly smaller at the grid point than in the region in between, and again significantly smaller at stops 228 and 229.

[0199] The angular distance 237 between individual grid points can be dynamically changed and adapted to the number of grid points or menu items provided in advance.

[0200] Figure 14b A variation is shown where the magnetic field does not increase abruptly towards the end stops 228 and 229, but rather exhibits a steep curve. Furthermore, at grid point 226, the magnetic field increases in a sloping manner towards each of the two rotational sides, thereby increasing the rotational resistance in the corresponding rotational direction. Here, using the same input device 502, only three grid points 226 are provided, with an angular distance 237 greater than that according to… Figure 14a In the example.

[0201] Figure 14c A variation is shown in which there is less rotational resistance between some grid points 226 and higher magnetic fields 239 are generated only adjacent to grid points 226, so as to achieve locking at some grid points 226 and at the same time provide only a small angular spacing between these grid points.

[0202] In principle, Figure 14a , Figure 14b , Figure 14cIt is possible to combine different operating modes and magnetic field variation curves. For example, the effects of the magnetic field variation curve can be adjusted differently in different submenus.

[0203] Figure 14d This illustrates a possible application, assuming, for example, a telephone call. The operating element 503 of the input device 502 can be rotated with minimal resistance, for example, to a minimum, or virtually without rotation. Then, the required torque increases sharply or abruptly to a threshold 230. After exceeding the threshold 230, for example, a telephone call or video conference is connected. The rotational resistance decreases until a relative minimum torque 231 is reached. The function of the operating element 503 is then changed. With continued rotation, for example, the call volume is changed. Here, the required torque increases linearly according to slope 232. It is also possible that the change curve is not linear. It is also possible to adjust from a certain volume level with a larger slope, or to suddenly increase the required torque at a certain value.

[0204] In all cases, it is also possible that, for example, under corrugations (grids), instead of switching between large or small currents of the same polarity as before (i.e., +0.2 to +0.8 A = corrugation), the current alternates with varying polarities, i.e., +0.2 to +0.8 A, followed by the next corrugation of -0.2 A to -0.8 A, then the next torque peak of +0.2 to +0.8 A, and so on. Preferably, the low-alloy steel may contain a coercive magnetic field. The steel is preferably demagnetized periodically or as needed (especially by a special alternating field).

[0205] For components that can be exposed to magnetic fields, the material FeSi3P (silicon steel) or related materials are preferred.

[0206] In all cases, either voice control or noise control can be performed. Voice control allows for adaptive control of the braking device.

[0207] If the rotating unit is not rotated, i.e., the angle is constant, it is preferable to continuously decrease the current over time. The current can also be changed in relation to the velocity (angular velocity of the rotating unit).

[0208] In this invention, for example, a tactile knob, a thumbwheel, or a button with tactile feedback function is installed in the (smartphone) casing (casing portion) as an operating element.

[0209] Application possibilities, for example: Adjusting the volume during a phone call: the louder the volume, the greater the torque required on the operating element. A stop (high torque) is generated when the volume can no longer be increased or a dangerous volume is reached.

[0210] Zooming in while taking a photo does not require moving a finger into the display screen: as long as optical zoom is adjusted, the actuator applies a certain torque (e.g., torque increases with focal length). When switching from optical zoom to digital zoom, the user first feels a brief stop (high torque), followed by a grid / ripple. The user thus notices that they are in the digital zoom zone. It is also advantageous and preferred that the activity or feedback of the input device is adjusted according to the zooming process. In particular, the torque set for zooming is different from that for zooming. For example, a higher torque is applied for zooming than for zooming, or vice versa. The same applies when the tendency for vibration blur is higher, for example, as it increases with focal length. Once the user encounters a risk of vibration blur, this is notified by touch on the operating device. Here, the (vibration blur) area changes dynamically depending on the situation (lighting conditions caused by exposure, etc.). According to, for example Figure 3 With a dual-zone operating mechanism, coarse adjustment can be performed in one zone or fine adjustment can be performed in the other zone using large-step focal length scaling (focal length) corresponding to the corresponding coarse grid (torque on the operating mechanism). This allows for fast, accurate, and reliable adjustment.

[0211] Instead of zoom (focal length), exposure can be adjusted as described above. Alternatively, one operating area can be used to adjust the focal length, and another operating area can be used to adjust the exposure. Here, clear tactile feedback is provided when there is a risk of blurring due to vibration or other conditions that would degrade image quality.

[0212] Adjusting music volume: Briefly blocks / stops movement at the preferred volume. The controls may be difficult to turn when the music is too loud. If the music is loud enough to disturb the surrounding environment, the user receives tactile feedback. This dynamically adapts to the situation. In quiet environments (such as an office), the feedback threshold is lower than in loud environments (such as subways, trains, and airplanes). Screen brightness can also be adjusted via the controls (e.g., when the ambient light is too bright and people cannot see the screen clearly, thus not knowing what they are adjusting).

[0213] Phone book page turning, playlists, files, etc.

[0214] Scroll through web pages, documents, etc.

[0215] The actuator can also be operated when wearing gloves or with adhesive tape, because it rotates mechanically and does not detect touching the skin, just like in a touch-sensitive screen!

[0216] Users can set the grid pitch at any level.

[0217] Child safety: The operating torque of the operating components can be increased so much that, for example, a child / young person cannot rotate and therefore cannot operate the device due to insufficient tangential force caused by muscle, preferably cannot turn on the device.

[0218] Modular structure: Users can easily modify their smartphone casings. However, the operating components can also be directly integrated into the smartphone or integrated into other smart devices.

[0219] The casing can be fitted with a battery to extend the device's operating time. However, this is not necessarily required.

[0220] The advantage of an additional battery is that the tactile knob (thumb wheel) draws current directly from the battery and can also communicate with smartphones via existing power lines (current is transmitted from the additional battery to the smart device). Connectivity to the smartphone can be achieved either through a plug in a charging socket or a general-purpose connector, or via Bluetooth, NFC, infrared, or other wireless data transmission methods.

[0221] The battery inside the casing can be charged either via a wire, as is typical, or via inductive charging. The smartphone battery can also be charged inductively by the casing battery.

[0222] Reduction of control buttons The operation assistance for smartphones and other smart devices, with few or no operation buttons (such as smartphones that are operated via touch screen).

[0223] Modern smartphones, in particular, have significantly reduced the number of buttons. Most operations are still performed solely through the display screen. However, many options cannot be adjusted via the screen, such as volume control (especially during calls when the phone is near the ear). There's also no optimal way to open the camera via the screen when taking photos with a smartphone, as people may experience vibrations that blur the image, and smartphones are often unstable when held with one or two hands.

[0224] Many smartphone manufacturers try to eliminate as many buttons / keys as possible for design reasons, but also to make the device waterproof, for example. The fewer moving parts, the less likely dirt and water are to get inside. Control buttons and scroll wheels located inside the case, i.e., outside the smartphone, avoid this problem. If users are less concerned with design and more focused on greater flexibility and user convenience, such a case is a good way to complete their phone or meet their needs without having to buy a new device. Many users want to protect their smartphones with additional cases because the cases obviously also provide additional functionality. Therefore, users don't have to give up, for example, the knobs on the edge.

[0225] The casing can be connected to a smartphone (for a charging cable socket) or a wireless data transmission device via a plug.

[0226] In principle, it is like a traditional protective case for smartphones, which also includes telephone peripherals.

[0227] Figure 1 This illustrates the possible mounting configuration of the operating element (here, a knob or thumbwheel / finger) within the housing portion (casing). Figure 2 The diagram shows a housing device for a smartphone according to the present invention, in which the operating element is side-mounted. A rechargeable battery is also integrated into the housing portion.

[0228] Reduce part diversity / identical parts: The combination of a touchscreen display (monitor) and haptic buttons can be used in a variety of different applications. The same basic configuration (hardware) can be "tuned" through different software. For example, volume control, scrolling through a phone book, etc.

[0229] cost

[0230] The braking device (so-called wedge support) shown in DE102018100390A1 can be manufactured inexpensively. It has a small number of simple parts made of standard materials and achieves high torque due to the wedge effect in terms of structural dimensions. Furthermore, power consumption (power requirements) is very low. MRF brakes can therefore be easily powered by a smartphone battery or directly by a smart battery pack.

[0231] Modularity - Left-handed - Smartphone

[0232] The structure of the housing device (casing) of the present invention can be modified relatively simply. The position of the tactile operating button or thumb dial can be moved to the other side (from right to left) without much design change. This is not simple in smartphones, as the entire internal architecture must be changed. The routing of printed wires, etc., must be different. The housing does not have many components that require attention. Furthermore, communication between the smartphone and the thumb dial can be achieved via Bluetooth. The Bluetooth module can be directly installed in the thumb dial. That is, only a current connection to the battery is required.

[0233] This allows for the relatively advantageous creation of two different cases for right-handed and left-handed users. Alternatively, there are many more different cases where the button is primarily used (for taking photos, changing the volume when making a phone call; operating with the index finger or thumb, etc.).

[0234] The housing can also be manufactured in a modular form, allowing the wedge support to be installed in different locations. Various openings are provided within the housing, providing interfaces for power supply and data transmission. The wedge support can then be removed from one opening / stand and installed in another. Thus, a right-handed mode can be converted to a left-handed mode. Alternatively, the button can be positioned from below in the upper area of ​​the smartphone.

[0235] Tactile knobs with different zones

[0236] A knob can have multiple operating areas, which may have different surfaces (knurled in different directions, perfectly smooth, rough, or fine), for example, in three areas. However, the knob has only one control device, sensor, and damping device, while the tactile feedback may vary depending on where the user operates / touches it. Therefore, the user knows what different adjustments they have just made. The sensor identifies where the user operates / touches it. If the user moves a finger toward the knob, the sensor identifies which area the finger has moved to and then activates the corresponding function.

[0237] Therefore, multiple different functions can be controlled using the same knob, without people having to switch or select them first.

[0238] exist Figure 3 The housing device of the present invention having two operating areas is shown in different views.

[0239] exist Figure 4 The housing device of the present invention having three operating areas is shown in different views.

[0240] exist Figure 5 The image shows the housing device of the present invention having two operating areas (left side) and three operating areas (right side) and corresponding sensors.

[0241] example: The knob has two zones: one zone is used to adjust the volume of media playback (increasing torque as the volume increases), and the second zone is used to select songs (forward / backward – i.e., tactile stop function; for favorite songs: a harder lock or higher braking torque). Alternatively, the second zone can have a completely different function (camera zoom).

[0242] Various technologies can be used as sensors, such as proximity sensors near their respective areas, capacitive sensors on the thumbwheel, inductive sensors, and cameras (image recognition devices) in smart devices. Sensors can be placed next to or on the wheel.

[0243] The number of zones can be arbitrary (1, 2, 3...), but a preferred number is likely 3. The MRF damper is housed in one of the zones, and the other zones are non-rotatably connected to that zone. The zones can be equipped with different surfaces (the surfaces do not necessarily have to be different, but it allows for more intuitive operation).

[0244] As explained, the tactile feedback in different zones can vary. This could be different ripples with varying resistance spacing, and the resistance could be constant or have different intensities within the zone. Because all zones are braked by the same MRF braking unit, all zones naturally rotate simultaneously. However, the controller uses sensors to detect which zone is being operated and then uses software to control the correct function (therefore, volume and camera zoom are not adjusted simultaneously). The sensor used to determine finger position is naturally only needed; an additional sensor is always required to measure the rotation of the thumb wheel.

[0245] A significant advantage of using a single button with multiple zones is that only one controller and one damper are needed to control multiple functions.

[0246] Figure 15 A partial view shows an input device 502, as described above. Here, the braking device 1 is engaged to the operating member 503 via a transmission unit 512. This allows for a higher (braking) torque. Furthermore, the transmission unit 512 spans the operating member 503 and the rotating axes of the braking device 1, which are arranged parallel to each other (dashed line sketch).

[0247] Figure 16 The input device 502 is shown, where the operating element 503 can also be actively rotated using the drive device 513 as a supplement to manual rotation. This active drive device can be advantageously used in all input devices 502 described herein. The drive device 513 is located opposite the braking device 1 and has the same axis of rotation (shown by the dotted line) as the operating element 503 and the braking device 1. This allows for a particularly compact installation.

[0248] The switch unit 514 is clearly visible here, and it can be operated by pressing the operating element 503. The switch unit 514 is equipped with a pressure sensor. This allows input based on the amount of pressure applied to the operating element 503. The switch unit 514 can also be designed as a switch without a pressure sensor.

[0249] In all embodiments and designs, it is also feasible to design the braking device to rely on a motor. For example, an electric motor can be selectively energized to generate the desired braking torque.

[0250] Possible tactile feedback

[0251] Using a rapidly switching MRF damper, one can simulate a mechanical device, such as a knob on an old-fashioned radio. The knob is initially rotated against high resistance to turn on the radio, until the resistance is overcome. The radio is then switched on and the volume can be adjusted by continuing to turn it.

[0252] Using the thumb dial, you can initially adjust to a high resistance level until you rotate a small angle. Then, the resistance is adjusted back to a minimum, and the resistance increases slowly with the rotation angle as the volume increases (see...). Figure 6 Therefore, for example, you can connect a smartphone's multimedia player and then adjust the volume accordingly.

[0253] Answering a call usually involves adjusting the volume (which may be necessary depending on connection quality, ambient noise, etc.). Both can be easily and quickly accomplished using a knob. Therefore, accidentally answering a call seems uncommon.

[0254] The concept of using tactile knobs within the casing can also be implemented in tablets or all other types of portable smart devices, where few or no buttons are installed in the device itself.

[0255] Pinch to zoom

[0256] Pinch zoom describes the possibility of zooming using two fingers, by spreading or closing them. In smartphones, this type of zooming is either impossible or difficult to achieve with one hand. One-handed operation, such as zooming, can be achieved using a knob operated, for example, with the thumb or the index finger on the other side.

[0257] Wear gloves when handling the equipment (due to winter, cold weather, hygiene reasons, etc.).

[0258] Most smartwatches feature capacitive displays, meaning they are rarely, if ever, operated while wearing gloves, depending on the manufacturer. Haptic switches offer a significant advantage here. When using smartphones, people were more accepting of removing gloves because they had to be pulled out of their pockets (a relatively slow process). But the purpose of a smartwatch is to provide quick access to information. For hygiene reasons (infection, viruses), the necessity of not removing gloves makes operating touchscreen smart devices difficult or even impossible.

[0259] Mistakenly identified scrolling as pressing

[0260] Because the screen is small, scrolling is often mistaken for pressing. This wouldn't happen with a scroll wheel.

[0261] Intelligent reading: Scale it to a clearly readable size, and then rotate it so that it always appears exactly where people will read it. That is, it jumps back to the beginning of a sentence from the end, and so on. Here, the text always remains at the same height (within the same reading area) so that the eyes don't have to jump back and forth.

[0262] Answer or reject

[0263] When answering a call, depending on the rotation direction, turning the knob to a certain angle will stop the call from being answered or rejected (e.g., clockwise: answer; counter-clockwise: reject / not answer). When rejecting a call, users can scroll through pre-reserved messages (feedback) by rotating the knob and send them to the caller by pressing a button (e.g., Bin is in a meeting).

[0264] Visual impairment (possibly accompanied by hearing impairment)

[0265] People with visual impairments (blind people) can be protected through corresponding feedback, for example, in the form of Morse code.

[0266] Display defect / SOS / emergency call: In the event of a defective display screen, when the operating components are such as Figure 6 When using the ground cover, you can always select the basic operation. You can also select different people or functions by rotating the grid / wave pattern, when the name / function is played through the speaker.

[0267] The SOS operation (short / long / short) of the operating unit can be detected and the corresponding function is executed.

[0268] Energy saving: The aforementioned "display defect" function is also employed, which conserves current / energy when the battery is about to run out. The display can be significantly dimmed in the first level because answering, volume adjustment, and hanging up can be safely performed via adaptive controls. This is achieved through a dual-zone regulator (e.g., based on...). Figure 3 When higher brightness is needed, the display brightness can be adjusted rapidly and safely. In the second energy-saving stage, the energy-intensive display can be completely shut off.

[0269] Choose from various cameras

[0270] More and more cameras are being installed in new smartphones. Typically, there's one on the back and a front-facing selfie camera. But there are often additional cameras, such as wide-angle lenses, or even telephoto lenses in the future. Optical zoom can be operated using a thumb dial. The thumb dial also allows for quick and easy switching between cameras. Using the above-described implementation with multiple zones, multiple cameras can be adjusted / operated simultaneously.

[0271] Thumb dial with an exemplary structure

[0272] The thumbwheel is preferably a transverse wedge support, designed to be very narrow. The roller can also be a cylindrical roller in this case, but with a small diameter (e.g., 1 mm) and a large axial extension dimension (e.g., 5 mm). The magnetic coil can be designed either transversely (wound axially) or radially (the coil is wound around the axis).

[0273] Like all other actuators, the thumbwheel requires a sensor to measure rotation for tactile feedback. This can be achieved using a rotary sensor or a magnetic ring with a Hall effect sensor. In principle, the thumbwheel itself can provide tactile feedback, just like any other knob with a wedge support. Due to its small size, it cannot generate high torque. However, this is also not even necessary because of its small diameter.

[0274] DE102018100390A1 and WO2019 / 138015 describe a thumbwheel with an axial coil and implement a very narrow actuator.

[0275] Installation possibilities

[0276] The scroll wheel can be housed within the smartphone casing, or positioned axially parallel to the smartphone, or rotated 90°. Each form may be better depending on which finger is used for tactile rotation. However, for the second form, a standard button with a wedge support is suitable because it is shorter, but for this purpose, it can be constructed to be larger radially.

[0277] Push

[0278] The thumb wheel can also have a push function (in which case the thumb wheel is pressed). This can be used to confirm a function, switch (on / off), return, or any other function (e.g., customer-defined, such as answering or hanging up a call). The push function can also be multi-level (adaptive).

[0279] Adaptive hinges in foldable smartphones

[0280] The first foldable smartphone is already on the market. When folded, it's the same size as a regular smartphone, and when unfolded, it's twice as large. This makes one-handed operation significantly more difficult, which is why the rotary dial is advantageous (for zooming, answering calls, etc.). On one hand, the screen is much larger to cover the entire surface area; on the other hand, the smartphone can be intentionally folded away.

[0281] This can be remedied by equipping the casing with a thumbwheel that acts as a hinge (see...). Figure 7 and Figure 8 When the smartphone is flipped up, the thumb dial locks in the open position and the smartphone cannot be easily folded back up. In this case, the thumb dial can also be powered by an additional battery from the casing.

[0282] Here, the thumbwheel must be positioned precisely at the center of rotation for kinematic reasons. This is difficult because the smartphone or display is located there. Therefore, one might either directly integrate the thumbwheel into the smartphone or require a special hinge that allows for linear movement. Naturally, tactile control buttons could also be incorporated into the edge of such a housing as described earlier.

[0283] Touchpad housing with adaptive hinge

[0284] Foldable cases for tablets or touchpads can also be equipped with this hinge, which allows the case to be held in any position.

[0285] Adaptive hinge for laptops

[0286] The laptop screen can be easily braked using a thumbwheel because it is fixed in a pivot point. The thumbwheel adjusts to minimum resistance as the screen moves and to maximum resistance when the desired position is reached.

[0287] Reading Assistant

[0288] The concept of a hinge for the casing of smartphones and tablets can also be used with normal "analog" data. A simple frame is created that moves between the pages of the book, with a hinge featuring a thumbwheel as a damper. This frame thus keeps the book open and allows the reader to comfortably hold it.

[0289] Adaptive function selection

[0290] The key configuration varies depending on the selected function. If the camera is selected as the operable element, the keys will receive zoom functionality or the user's most frequently used function. The customer can set these presets, or the device can select them based on its internal user data evaluation. Here, artificial intelligence or machine learning can also improve user control and reduce operational complexity.

[0291] The present invention particularly relates to a device having a tactile knob / thumb wheel within a smartphone casing; the thumb wheel allows operation of the smartphone for various apps, and is controlled by the smartphone; tactile feedback is, for example, increased resistance during rotation; we do not limit the use of sensors to measure rotational motion.

[0292] This invention specifically specifies the use of MRF in actuators.

[0293] The present invention specifically provides for communication between a tactile knob and a smartphone via a plug or wireless transmission, such as Bluetooth, NFC, infrared, etc.

[0294] The present invention specifically specifies the use of an additional battery in the housing to operate the actuator.

[0295] MRF actuators are specifically designed with wedge supports featuring rollers with radial or axial coils.

[0296] This invention particularly specifies a modular structure. This allows for the possibility of changing the position of the actuator.

[0297] Haptic feedback can also be demonstrated acoustically (through speakers) or optically (lights, LEDs, displays in screens, operator lighting, etc.).

[0298] The invention presented herein can be used in various technical fields, such as smartphones, smartwatches or smart devices, tablet computers (touchscreen), small displays, Android applications (Apps), Apple (iOS) applications (Apps), photography, camera housings, remote controls, office computers, games (computer mice, keyboards, controllers), computer mice, high-fidelity or television sets.

[0299] List of reference numerals

[0300] 1. Magnetorheological braking device

[0301] 2 Braking components

[0302] 3 Braking components

[0303] 4 supports

[0304] 5. Gap, Channel

[0305] 5a Gap width

[0306] 6. Medium

[0307] 8 games

[0308] 9 Free Distance

[0309] 10 Acute Angle Area

[0310] 11. Transmission components, rollers, rotating bodies

[0311] 11d arm

[0312] 12 Rotational shafts

[0313] 13 Rotating part

[0314] 13a inner diameter

[0315] 13b Outer diameter

[0316] 13c height

[0317] 13d wall thickness

[0318] 13e Sleeve section (lx diagram)

[0319] 14 balls

[0320] 15 cylinders

[0321] 16. Wedge

[0322] 17. Direction of relative motion

[0323] 18. Direction of relative motion

[0324] 19 Magnetic Particles

[0325] 20 Axial

[0326] 21 core

[0327] 21b Minimum diameter

[0328] 24 Outer Ring

[0329] 25 radial

[0330] 26 coils

[0331] 26a Maximum diameter

[0332] 26c coil plane

[0333] 26d radial about 26c

[0334] 27 Control device

[0335] 28 Packing

[0336] 30 bearings

[0337] 32 transverse groove

[0338] 33 body

[0339] 35 Cable sleeve

[0340] 36 sump

[0341] 36a outer diameter

[0342] 37 Cylindrical working surface

[0343] 37a outer diameter

[0344] 38 Seals

[0345] 43 User Interface

[0346] 45 Cable

[0347] 46 Sealing ring

[0348] 48 Sliding guide mechanism

[0349] 49. Coating

[0350] 50 brackets

[0351] 61 angle segment

[0352] 62 angle segment

[0353] 63 Receptacle for 11

[0354] 64 Outer surface

[0355] 65 Radial spacing

[0356] 66 Radial Spacing

[0357] 67 13 inner surface

[0358] 68 signal

[0359] 69 amplitude

[0360] 70 Sensor Device

[0361] 71 Magnetic Ring Unit

[0362] 72 Magnetic Field Sensor

[0363] 73 Sensor wires

[0364] 74 keys

[0365] 75 Shielding mechanism

[0366] 76 Shielding

[0367] 77 Isolation Units

[0368] 78 Decoupling device

[0369] 110 Closed chamber

[0370] The first end of 111 110

[0371] 112 First support point

[0372] 113 Field Generating Device

[0373] Volume of 114 110

[0374] 115 The second end of the closed chamber

[0375] 116 Diameter of the first support point

[0376] 117 Diameter of the second support point

[0377] 118 Second support point

[0378] 119 Short Axis

[0379] 120 Balance Channel

[0380] 121 2 end

[0381] 122 Radial (Global)

[0382] 226 grid points

[0383] 228 End stop

[0384] 229 End stop

[0385] 230 threshold

[0386] 231 Minimum torque

[0387] 232 lift

[0388] 237 angular distance

[0389] 238 Stopping torque

[0390] 239 Locking Torque

[0391] 240 basic torque

[0392] 500 housing assembly

[0393] 501 Outer shell

[0394] 502 Input Device

[0395] 503 Operating Components

[0396] 505 Sensor Device

[0397] 506 Control Device

[0398] 507 Accommodation facility

[0399] 508 Operating Area

[0400] 509 Hinge Mechanism

[0401] 510 Mobile Devices

[0402] 511 Outer shell section

[0403] 512 Transmission Mechanism

[0404] 513 Drive Unit

[0405] 514 Switching Unit

[0406] 518 Monitoring Device

[0407] 520 Equipment Main Body

[0408] 528 sensor

[0409] 530 Equipment Section

[0410] 540 accumulator

Claims

1. A housing device (500) for a mobile device (510), the housing device (500) comprising at least one housing portion (501) for at least partially surrounding the mobile device (510) and at least one input device (502) at least partially disposed within the housing portion (501), the input device (502) being used to control the mobile device (510) accommodating the housing portion (501), wherein, The input device (502) includes at least one movable operating element (503) and at least one braking device (1), wherein the movement of the operating element (503) can be targetedly damped by means of the braking device (1), characterized in that the operating element (503) includes at least two operating zones (508), and wherein the movement of the operating element (503) can be targetedly damped depending on which operating zone (508) the operating element (503) is operated in.

2. The housing device (500) according to claim 1, wherein, The braking device (1) is designed to be magnetorheological.

3. The housing device (500) according to claim 2, wherein, The braking device (1) includes at least one magnetorheological medium (6) and at least one field generating device (113) for generating and controlling the magnetic field strength and / or electric field strength, wherein the field generating device (113) can influence the medium (6) to adjust the torque for the rotatability of the operating member (503).

4. The housing device (500) according to any one of the preceding claims, wherein, The operating position of the operating element (503) can be detected by means of at least one sensor device (505), and the braking device (1) can be controlled by means of at least one control device (506) at least according to the operating position of the operating element (503).

5. The housing device (500) according to claim 4, wherein, The damping can be adjusted based on at least one rotation angle detected by the operating member (503) using the sensor device (505).

6. The housing device (500) according to claim 1, wherein, The housing device (500) includes at least one control device (506), and the at least one control device (506) is adapted and designed to control the braking device (1) according to at least one control command and convert the control command into at least one tactile signal that can be felt on the operating member (503), so that the user can receive tactile feedback at least as a result of the input and / or during the input.

7. The housing device (500) according to claim 6, wherein, The control commands are provided by the mobile device (510) and / or by the control device (506).

8. The housing device (500) according to claim 1, wherein, The input device (502) can be connected to the mobile device (510) wirelessly and / or via a wired connection, such that the mobile device (510) housed in the housing (501) can be operated via the input device (502) and / or the mobile device (510) can send signals to the input device (502).

9. The housing device (500) according to claim 1, wherein the housing device (500) comprises at least one electrical energy storage device (85), wherein, The input device (502) can be powered by the energy storage device, and / or the input device (502) can be powered by at least one energy storage device of the mobile device (510).

10. The housing device (500) according to claim 1, wherein the housing device (500) includes at least one housing portion (501) having an optimized arrangement for a right-handed input device (502) and / or includes at least one housing portion (501) having an optimized arrangement for a left-handed input device (502).

11. The housing device (500) according to claim 1, wherein, The housing portion (501) includes at least two receiving mechanisms (507) for receiving at least one input device (502), wherein the input device (502) can be selectively installed in one of the receiving mechanisms (507).

12. The housing device (500) according to claim 1, wherein, The operating area (508) can be distinguished by touch, and / or tactile feedback is provided based on which operating area (508) the operating element (503) is operated in.

13. The housing device (500) according to claim 1, wherein, The operating area (508) is adapted and designed to operate at least one of the specified functions of the mobile device (510) respectively, thereby enabling control of another function of the mobile device (510) depending on the operating area (508) being operated.

14. The housing device (500) according to claim 1, wherein, Using at least one monitoring device (518), a sensor is used to detect which operating area (508) the operation is being performed.

15. The housing device (500) according to claim 1, wherein, A first input can be executed by at least one first movement of the operating element (503), and wherein at least one other input can be executed by a continued movement of the operating element (503), and wherein a damping different from that of the continued movement is specified for the first movement, and / or wherein at least one targeted increase of the decelerating torque is performed after the first movement, thereby requiring additional force for continued rotation.

16. The housing device (500) according to claim 15, wherein, At least one function is activated by the first movement of the operating element (503), and wherein at least one adjustment of the function is performed by the continued movement of the operating element (503).

17. The housing device (500) according to claim 1, wherein, The control device (506) is adapted and designed to provide at least one tactile signal that can be felt on the operating element (503), the at least one tactile signal serving as an aid for a person with disabilities.

18. The housing device (500) according to claim 1, wherein, At least one movement of the operating element (503) can perform zooming and / or scrolling and / or camera selection and / or call control and / or menu selection.

19. The housing device (500) according to claim 1, wherein, By moving at least one of the operating elements (503), the prominence of the display area can be further enhanced in a targeted manner.

20. The housing device (500) according to claim 1, wherein, The outer shell (501) is designed to be foldable and includes at least two outer shell segments (511) that are movably connected by at least one hinge mechanism (509), wherein the input device (502) is integrated into the hinge mechanism (509).

21. The housing device (500) according to claim 1, wherein, The mobile device (510) is a smartphone, tablet, or other type of handheld device or mobile smart device.

22. The housing device (500) according to claim 5, wherein, The damping can be adjusted in a targeted manner based on at least one rotation angle detected by the operating member (503) using the sensor device (505).

23. The housing device (500) according to claim 6, wherein, The at least one control device (506) is adapted and designed to control the braking device (1) according to at least one control command and to convert the control command into a predetermined sequence of deceleration torques, so that the user can receive tactile feedback at least as a result of the input and / or during the input.

24. The housing device (500) according to claim 7, wherein, The control commands are provided by an application stored in the mobile device (510).

25. The housing device (500) according to claim 1, wherein, The movement of the operating element (503) can be specifically damped based on which operating area (508) the operating element (503) is touched.

26. The housing device (500) according to claim 12, wherein, The operating area (508) has a different surface and / or surface structure and / or size and / or geometry and / or color and / or material.

27. The housing device (500) according to claim 12, wherein, Tactile feedback is provided based on which operating area (508) the operating element (503) is touched.

28. The housing device (500) according to claim 18, wherein, Zooming and / or scrolling and / or camera selection and / or call control and / or menu selection can be performed by rotating at least one of the operating elements (503).

29. The housing device (500) according to claim 19, wherein, By rotating at least one of the operating elements (503), the prominence of the display area can be further enhanced in a targeted manner.

30. The housing device (500) according to claim 19, wherein, The protrusion can be activated by pressing and / or rotating the operating element (503).

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