Pocket for mobile devices, magnetic opening mechanism, system

Abstract

A bag (10) for mobile devices, comprising: - a cavity (14) for receiving at least one mobile device; and - a closure system (18) for closing the cavity (14); wherein the closure system (18) comprises: - a closure element (24); - a closure receptacle (26) for receiving the closure element (24); and - a locking device (28) for locking the closure element (24) in the closure receptacle (26); wherein the locking device (28) comprises: - at least one first locking unit (30A), wherein the at least one first locking unit (30A) is switchable between a first locking position and a first release position, and - at least one second locking unit (30B), wherein the at least one second locking unit (30B) is switchable between a second locking position and a second release position.

Description

The present invention relates to a storage system for the temporary safekeeping and restriction of use of mobile devices, in particular mobile electronic communication devices such as mobile phones, tablets, or smartwatches. The device can be placed in a bag, which can then be closed. This physically and / or functionally blocks access to the device without authorization. The mobile device can thus remain in the user's possession. The locking system is preferably designed such that it can only be opened with an associated, in particular magnetic, opening element, which can serve as a specific authentication device. The lock preferably opens only when the magnetic opening element generates a predetermined pattern, in particular a magnetic field or signal pattern, which is coupled into the locking system. This design makes it impossible, or only possible with considerable effort, for the user to access or operate the mobile device once it is locked. Therefore, in application areas such as educational settings (schools), work environments (companies), or at events, it can be reliably ensured that the device cannot be accessed or misused by the user during defined periods. The lock can only be released, for example, by an authorized person, such as a teacher, or from an authorized location, such as a locker outside the school building, using the appropriate magnetic release mechanism. The invention further relates to a bag for mobile devices, a magnetic opening device for opening the bag, a system of bag and opening device and a method for opening, closing and manufacturing the bag. Bags with easily opened closures are known from current technology. This would allow, for example, students to easily open the bag, remove their mobile phones, and use them during class. The invention is therefore based on the objective of providing a bag which prevents easy opening. The problem underlying the invention is solved by a bag with the features of claim 1. The invention is directed to a bag for mobile devices, in particular mobile phones, tablets, smartwatches, wearables, smart glasses, and headsets. The bag preferably comprises a bag body and / or a cavity for holding at least one mobile device, the cavity preferably being bounded by the bag body. The bag body can be completely opaque, completely transparent, or both (opaque with a transparent viewing window). The bag body can be made of plastic, textile, in particular neoprene or softshell, or metal. The bag further comprises a closure system for closing the bag body and / or the cavity. The closure system comprises a closure element, in particular extending along a longitudinal axis; a closure receptacle, in particular formed separately from the closure element, for receiving the closure element; and at least one locking device, in particular formed separately from the closure element and / or the closure receptacle, for locking the closure element in the closure receptacle. The locking device can be arranged so as to be fixed in or on the closure receptacle or in or on the closure element. The locking device can be integrated into the closure receptacle or the closure element or formed as a single, integrated assembly. The locking device comprises at least one first locking unit, in particular at least one first locking element, which is switchable, in particular movable, between a first locking position and a first release position, in particular relative to the locking element and / or relative to the locking receptacle. The first locking unit, designed separately from the locking element and the locking receptacle, with at least one first locking unit, enables the secure closing of a mobile device in a pocket. Preferably, the first locking unit can be moved from the first locked position to the first release position by means of an externally applied magnetic opening device. The additional features of the locking system provide further measures to increase its security. The more stringent the requirements for an opening device to unlock the locking system, the greater the obstacle to unauthorized access to the terminal device. An advantageous aspect is that the locking device comprises at least a second locking unit, in particular a second locking element, which is switchable, and in particular movable, between a second locking position and a second release position, particularly relative to the locking element and / or relative to the locking receptacle. Accordingly, two locking devices are required to open the bag or to unlock the locking element. The increased complexity of the locking system, particularly due to the requirement of multiple locking units, represents a significant technical advantage. Since access to the mobile device is physically blocked without authorized release, a multi-stage locking system further reduces the risk of unauthorized opening considerably.The second locking mechanism ensures that unlocking requires not only a simple unidirectional magnetic pulse from the outside, but also a complex opening device. This further enhances security in applications such as schools or workplaces. This multi-point locking system reinforces the user's inability to operate the device after it has been locked without proper authorization. This effectively prevents misuse during defined periods. A locking unit can directly secure the locking element, or a locking unit can block the release of the locking element by another locking unit by securing the other locking unit. Alternatively, several locking units can each directly secure the locking element. An advantageous aspect is that the at least one first locking unit and the at least one second locking unit are decoupled in their movement. Preferably, the at least one first locking unit and the at least one second locking unit are decoupled in such a way that while the at least one second locking unit is in the second release position, the at least one first locking unit can be switched, and in particular moved, into the first locking position. The first locking unit can be switched, and in particular moved, from the first release position into the first locking position, while the second locking unit remains permanently in the second release position for the entire duration of the movement of the first locking unit. The requirement to actuate two independent locking units, and in particular locking elements, significantly increases the complexity of the locking system.This increased hurdle effectively prevents simple tools or unauthorized access, such as with simple magnets, from being sufficient to gain entry. Since both units must be operated, and especially moved, independently, a special, custom-made opening device is absolutely essential. Preferably, the at least one first locking unit and the at least one second locking unit are decoupled in such a way that while the at least one first locking unit is in the first locking position, the at least one second locking unit can be switched, and in particular moved, into the second release position. The second locking unit can be switched, and in particular moved, from the second locking position to the second release position, while the first locking unit remains permanently in the first locking position throughout the entire duration of the second locking unit's movement. The requirement to actuate two independent locking units, and in particular locking elements, significantly increases the complexity of the locking system. This increased hurdle effectively prevents simple tools or unauthorized access, such as by simple magnets, from being sufficient to gain entry.Since both units must be operated, and in particular moved, independently of each other, a special, custom-made opening device is absolutely necessary. One advantageous aspect is that the locking system is designed such that, to unlock the system, the first locking unit and the second locking unit must be moved simultaneously or sequentially into their respective release positions. This further increases the demands on the design and arrangement of the opening mechanism, resulting in enhanced security. One advantageous aspect is that the locking system is designed such that, to unlock the locking system, either the first locking unit and then the second locking unit must be moved to their respective release positions, or the second locking unit and then the first locking unit must be moved to their respective release positions. With a sequential movement, it may be necessary for one locking unit to be fully in its respective release position before the next locking unit can be moved, or for one locking unit to be initiated to move towards its respective release position before the next locking unit can be moved to its respective release position. Accordingly, the requirements for the design and arrangement of the opening mechanism increase, resulting in enhanced security. An advantageous aspect is that the locking system is designed such that it can only be opened or unlocked with a magnetic opening device, in particular non-destructively. It is further advantageous if the locking system is designed such that it can only be opened or unlocked with a magnetic opening device, in particular non-destructively, wherein the magnetic opening device has at least two principal magnetic field directions. Accordingly, it is necessary that at least two principal magnetic field directions are coupled into the locking system in order to open or unlock it. The term "principal magnetic field direction" refers to the spatial direction along which the magnetic flux density generated by the magnetic array reaches its maximum at a predetermined distance from the array. The principal magnetic field direction thus corresponds to the direction in which the magnetic array exerts its intended magnetic effect. An advantageous aspect is that the at least two principal magnetic field directions are not coaxial and / or parallel. It is advantageous if the at least two principal magnetic field directions intersect and enclose at least one angle greater than a minimum angle. The minimum angle is preferably greater than 10°, particularly greater than 20°, more preferably greater than 30°, more preferably greater than 45°, more preferably greater than 60°, more preferably greater than 75°, and more preferably greater than 90°. With three or more principal magnetic field directions, each pair of principal magnetic field directions encloses an angle. It is advantageous if at least one or all of the angles are greater than the minimum angle. It is additionally or alternatively advantageous if the at least two principal magnetic field directions are opposite in direction (opposite signs) and / or skew (not intersecting and not parallel).In a skew arrangement, preferably all angles in the space between the main magnetic field directions should be greater than the minimum angle. An advantageous aspect is that the locking element is cylindrical, hollow cylindrical, cuboid, or conical. The locking element can have an angular, particularly polygonal, triangular, rectangular, or square cross-section, or a round, particularly circular, elliptical, or annular cross-section. The locking element is preferably designed as a needle. The locking element and the locking receptacle are preferably arranged such that they run concentrically to the longitudinal axis. Accordingly, the locking element is centrally located in the locking receptacle when the locking system is locked. The closure receptacle has a closure body and / or an opening arranged in the closure body through which the closure element enters a receiving space defined by the closure body. The opening can be only slightly larger than the cross-section of the closure element (e.g., 10% larger). The locking mechanism can be arranged in the closure body, particularly in the receiving space. It is advantageous if the closure body is completely closed except for the opening, so that unauthorized access from the outside is prevented as far as possible. The closure body can be made up of multiple parts. The parts of the closure body can be inserted into one another. It is conceivable that a first part of the closure body is arranged on a first side of a bag body and a second part of the closure body is arranged on a second side opposite the first side.The bag body can have a through-opening into which the closure element is inserted from both sides. The bag body can thus be clamped between the first and second parts of the closure element. The parts of the closure element can be joined by means of at least one fastening element, in particular an adhesive. The at least one fastening element is preferably designed such that the closure element cannot be opened without damage. The closure element preferably has a rounded outer contour so that the closure system fits snugly against a bag body. The closure receptacle preferably has a stop, in particular an axial one, against which the closure element rests when the closure system is locked. In a first embodiment, the at least one first locking unit has a switchable clamping mechanism. The locking element can be held in place by friction. Thus, a simple mechanism can be provided to securely fix the locking element in the locking receptacle. Preferably, the at least one first locking unit has at least one clamping element, in particular a ball, for clamping the locking element. The at least one first locking unit can preferably have two or three clamping elements, in particular balls. Preferably, the at least one first locking unit has a first control cam, in particular with a first inclined plane, for guiding the at least one clamping element. The inclined plane and the longitudinal axis preferably form an angle.Preferably, the at least one first locking unit has at least one support element, which is displaceable, in particular axially, between an active position and a passive position. The at least one clamping element can be arranged in or on the support element. It is conceivable that the support element and the at least one clamping element are axially coupled and / or radially decoupled. Accordingly, an axial movement of the support element leads to an axial movement of the at least one clamping element. In this way, several clamping elements, in particular balls, can be displaced by means of the support element. The more balls are provided, the greater the clamping force. The at least one clamping element is preferably radially movable independently of the support element. The support element is preferably axially guided in the closure receptacle and / or in the closure body. The at least one clamping element is preferably radially guided in the support element. Unless otherwise specified, the specifications refer to the longitudinal axis. An advantageous aspect is that the at least one first locking unit comprises a clamping counter-unit. The clamping counter-unit can form the first control cam. Preferably, the at least one clamping element is clamped between the locking element and the clamping counter-unit in the first locking position, so that the locking element is fixed in the locking receptacle. The clamping counter-unit can be cup-shaped or cap-shaped and / or tapered. The clamping counter-unit can widen or taper towards the locking element. The taper can provide the angle of the control cam. The support element and / or the clamping unit can each have a through-opening. The through-opening can be aligned with the opening of the locking receptacle, in particular the locking body. The locking element is preferably positioned in all through-openings when locked. An advantageous aspect is that the at least one second locking unit has at least one positive locking element, in particular a ball, for positive locking or blocking of the support element and / or the locking element. Accordingly, the at least one positive locking element can prevent axial movement of the support element and / or the locking element in the second locking position. Preferably, two or three positive locking elements, in particular balls, may be provided. Preferably, the at least one second locking unit has a second control cam for guiding the at least one positive locking element. The control cam can be provided by an intermediate element, in particular a sleeve. Analogous to the support element, the intermediate element can also have a through-opening. The intermediate element can be hollow and cylindrical. The support element can be at least partially arranged within the intermediate element.The intermediate element and the support element can define an annular spring space for receiving a spring element. The intermediate element and the support element can be in direct contact with each other. The intermediate element can axially displace the support element. An advantageous aspect is that the locking system comprises at least one spring element, in particular a compression spring, and more specifically a helical spring, for acting upon the carrier element in the active position and / or for clamping the at least one clamping element between the locking element and the counter-clamping unit and / or for acting upon the second control cam towards the carrier element. The spring element preferably exerts a spring force that forces or pre-tensions the first locking unit into the first closed position. The spring element is preferably supported on one side by the locking body and on the other side by the intermediate element or the carrier element. To unlock the first locking unit, a force must preferably be applied in the opposite direction to the spring force. The spring element can be arranged in the annular spring space between the carrier element and the intermediate element.From radially outside to radially inside, the elements can be arranged as follows: intermediate element, spring element, support element, locking element. The second control cam preferably has an inclined section and a flat section. The inclined section preferably forms an angle with the longitudinal axis that is greater than the angle between the inclined section of the first control cam and the longitudinal axis. The at least one positive locking element is in the second locking position when it is arranged axially between the planar section and the locking body. Therefore, the first locking unit, in particular the support element, cannot be moved axially opposite the spring element. As long as the at least one positive locking element is in the second locking position, the first locking unit cannot be switched to the first release position, and in particular, the clamping on the at least one clamping element cannot be released. In this embodiment, the first locking unit serves to hold the locking element, and the second locking unit serves to secure the first locking unit. To unlock, both the first and the second locking units must be switched, in particular moved, to their respective release positions. In an alternative embodiment, the at least one second locking unit comprises at least one positive locking element and a retaining section. The at least one positive locking element can be pivotably mounted on the retaining section about an axis of rotation. The axis of rotation can be tangential to the longitudinal axis. The at least one positive locking element can comprise a wing section and / or an arm section. The wing section and the arm section can be formed in one or more parts. The arm section can extend radially inward from the wing section. In the second locking position, the wing section can extend parallel and / or the arm section perpendicular to the longitudinal axis. The at least one positive locking element, in particular the arm section, and further in particular the free end of the arm section, can be arranged between the spring element and the support element.A spring counter-section may be provided, which preferably serves as a contact piece for the spring element and / or the arm section. The spring counter-section may have an opening into which the support element extends at least partially. The spring element preferably pushes the opposing spring section towards the at least one first locking element. The opposing spring section then pushes the arm section in the same direction, tilting the at least one positive locking element into the second locking position. This causes the support element to move into the clamping counter-unit, resulting in the locking element being secured in the locking receptacle. To open the lock, the second locking unit is preferably unlocked. For this purpose, an opening device can be used to tilt at least one wing section radially outwards. This can be achieved either by two individual magnets acting radially outwards or by a ring magnet acting radially outwards. For this purpose, the at least one positive locking element can have at least one control element, in particular at least one ball. The at least one ball can experience a magnetic force acting radially outwards, which moves the at least one ball radially outwards and pivots the at least one wing section radially outwards. The magnetic force preferably acts directly on the control element and preferably not directly on the at least one positive locking element. Pivoting the at least one wing section against the spring force of the spring element preferably causes the spring element to compress.The spring force which pushes the support element into the clamping counter-unit can thus be compensated, so that the first locking unit can be moved from the first locking position to the first release position. The clamping unit can widen towards the spring element. Accordingly, the spring element forces the support element and / or at least one clamping element into the narrowing cross-section of the clamping unit. In a further embodiment, the at least one first locking unit has at least one radially displaceable first locking element, which can be arranged in at least one first opening of the locking element or is arranged in the first opening of the locking element in the first locking position. The first opening preferably forms a first undercut. Accordingly, a positive-locking connection can be established between the locking element and the locking receptacle. Alternatively or additionally, at least one first locking element can be arranged on the locking element and engage in a first opening of the locking device in the first closed position. An advantageous aspect is that the at least one second locking unit has at least one radially displaceable second locking element, which can be arranged in at least one second opening of the locking element or is arranged in the second opening of the locking element in the second locking position. The second opening preferably forms a second undercut. This allows for a further positive-locking connection between the locking element and the locking receptacle. Alternatively or additionally, at least one second locking element can be arranged on the locking element and engage in a second opening of the locking device in the second closed position. The first opening and the second opening can be distributed axially and / or along the circumference of the locking element and / or the locking device.If the respective opening is located on the locking element, the respective locking element is in a radially inner position in the closed position and in a radially outer position in the released position. If the respective opening is located on the locking device, in particular on the locking receptacle, the respective locking element is in a radially outer position in the closed position and in a radially inner position in the released position. In an alternative embodiment, the second locking unit can have at least one pivotable second locking element. The second locking element can be pivotable about an axis of rotation that is tangential to the longitudinal axis. Thus, the second locking element can be pivoted towards and away from the longitudinal axis. The second locking element can have an arm section which, in the second release position, compresses the spring element. In this state, the first locking element can be moved from the first locked position to the first release position. The spring element can force the arm section into the second locked position, in which the at least one first locking element is fixed in the first locked position. The first locking unit and the second locking unit together comprise at least two movable components, in particular at least one first locking element and at least one second locking element, each of which can be moved from a first position to at least one second position by applying a magnetic field. The movable components are preferably designed such that they differ with respect to at least one parameter relevant to their movement, so that selective or simultaneous actuation of individual movable components is enabled by targeted adjustment of the applied magnetic field or fields. Preferably, the first movable component has a first threshold magnetic field, upon reaching or exceeding which the first movable component moves from the first position (e.g., locked position) to the second position (e.g., enabled position). Preferably, the second movable component has a second threshold magnetic field, upon reaching or exceeding which the second movable component moves from the first position to the second position. Preferably, the first threshold magnetic field and the second threshold magnetic field differ in at least one magnetic field parameter.The at least one magnetic field parameter in which the first ripple magnetic field differs from the second ripple magnetic field can be selected from the following group: a magnetic field strength, a magnetic field direction, a magnetic field frequency, a magnetic field gradient, a rate of change of the magnetic field strength over time, a time evolution of the magnetic field, a polarity of the magnetic field, or a combination of at least two of the aforementioned parameters. The movable components can have a permanent or inducible magnetic dipole moment. The movable components can be made of, or possess, a ferromagnetic or ferrimagnetic material. The polarization of the movable components can be axial, diametrical, radial, or in complex multipole patterns. The polarization of the movable components can be antiparallel (180°), orthogonal (90°), or at any angle relative to each other. The first and second movable components can be movable along a common axis of movement or parallel to it. At least one movable component can be linearly displaceable. At least one movable component can be pivotable. For release, the direction of movement of the first movable component can be the same as the direction of movement of the second movable component. If the components are polarized differently, especially oppositely, they cannot be moved by a magnetic field with a single principal magnetic field direction, even if the direction of movement is the same. Here, too, a magnetic field with at least two principal magnetic field directions is required. For release, the direction of movement of the first movable component can be opposite to the direction of movement of the second movable component. Selective actuation is possible with two separate principal magnetic field directions.Polarization or different polarization of the components is not necessary in this case. A comparable effect can be achieved if the directions of movement include an angle greater than the minimum angle. A combination of angled polarization and angled movement of the components is also conceivable. An advantageous aspect is that the bag has a body that defines the cavity. The body can have an opening through which the mobile device can be inserted into the cavity. The body preferably has a first flap and a second flap. The flaps can be arranged in the area of ​​the opening. The opening can be closed by means of the closure system. In the open state, the flaps are preferably spaced apart from each other. In the closed state, the flaps preferably lie against each other, particularly flush against each other. The first and / or second flaps are preferably hinged to the rest of the bag body. The first and / or second flaps are preferably each pivotable about a pivot axis on the rest of the bag body. The respective pivot axis preferably runs parallel or perpendicular to an insertion direction along which the end device can be inserted into the bag body. When the bag is closed, the bag body preferably extends along the insertion direction or is formed as a flat surface. When the bag is closed, the insertion direction preferably runs perpendicular to the longitudinal axis of the closure element. The flaps can either be connected to each other only via the rest of the bag body or directly connected to each other on one side. The locking element is preferably arranged on the first tab. The locking receptacle and / or the locking device are preferably arranged on the second tab. The locking system preferably comprises a locking element magazine and / or an activation element, in particular a push button, which may be arranged on the first tab. In the open position, the locking element may be located in the locking element magazine. The locking element is movable relative to the first tab and / or the locking element magazine, in particular along its longitudinal axis, between a deployment position and a retraction position. In the retraction position, the locking element is preferably completely enclosed in the locking element magazine. In the deployment position, the locking element protrudes from the locking element magazine and can interact with the locking mechanism. The locking element can be moved into the deployment position by actuating the activation element. The locking element magazine preferably has a return spring that biases the locking element into the retracted position. Therefore, the spring force of the return spring must be overcome when actuating the activation element. The return spring must also be overcome when locking the locking element in the locking receptacle. The activation element preferably protrudes from an outer side of the first tab. The locking element can preferably be extended from an inner side of the first tab. One advantageous aspect is that the locking system includes a centering aid to simplify the insertion of the locking element into the locking receptacle. The centering aid can be located on the inner side of the second tab. An advantageous aspect is that the locking system, in particular the locking receptacle and / or the locking element, comprises at least one or more spacers. The spacer may be arranged in the area of ​​the locking device. The spacer preferably extends in a direction opposite to or transverse to the insertion or approach direction of an opening device. The spacer is preferably designed and / or configured to prevent any opening device, particularly an unauthorized one, from entering the operating area of ​​the locking device. The spacer may form a mechanical barrier that prevents the insertion or approach of the opening device into a position required to release the locking device.The effective range of the locking device, in particular the locking units, is understood to be the spatial area in which an opening device must be brought into functional engagement with the locking device in order to switch the locking device, in particular to switch, move or transfer the first locking unit and / or the second locking unit between the respective locking position and the respective release position. To allow an authorized opening device to enter the operating range of the locking device despite the presence of the spacer, the opening device preferably has a recess into which the spacer can be partially or completely inserted, or in which the spacer can be partially or completely received. Thus, when the opening device is inserted or closed, the spacer can enter the recess of the opening device, allowing the opening device to reach the operating range of the locking device. The recess and the spacer therefore preferably form a geometric coding that, like a key-and-lock mechanism, establishes a geometric relationship between the opening device and the locking system. The spacer can have a positive geometry, and the recess of the opening device can have a negative geometry.The positive and negative geometries can preferably be configured to correspond to each other. The negative geometry is preferably larger in cross-section than the positive geometry, thus providing the possibility of immersion. Preferably, the spacer has an asymmetrical contour, such that the recess of the opening device must have a corresponding, also asymmetrical, counter-contour to enable a positive fit of the spacer. This asymmetrical design ensures that the opening device can only be inserted into the locking system in predefined orientations or in a single, predefined orientation (poka-yoke), thereby further increasing tamper resistance and simplifying the use of the authorized opening device. It is particularly intended that the spacer is formed integrally with a housing part of the locking system, especially with the locking element and / or the locking receptacle, and further, in particular, the locking body, or is joined to the locking system as a separate component.In the latter case, it is possible to exchange the spacer to provide different shape codings for different application scenarios. An opening device that lacks a recess for a spacer or has a recess for a spacer with a different shape code is prevented by the spacer from achieving sufficient insertion depth, thus reliably preventing the locking device from being unlocked. In this way, the spacer, in conjunction with the corresponding recess of the opening device, represents a simple yet effective measure for mechanically coding access authorization to the locking system and preventing unauthorized opening attempts. In a preferred embodiment, the spacer has a cross-sectional geometry designed such that, in conjunction with the corresponding recess of the opening device, it forms a unique shape code. The cross-sectional geometry, considered as a whole, can be, for example, polygonal, in particular triangular, rectangular, trapezoidal, pentagonal, L-shaped, T-shaped, U-shaped, circular, semicircular, elliptical, teardrop-shaped, star-shaped, cross-shaped, or ring-shaped. Additionally or alternatively, the cross-section of the spacer can have, in at least one partial area, at least one concave indentation, at least one convex projection, at least one radially offset shoulder, and / or at least one undercut, such that the recess of the opening device must have a correspondingly complementary local counter-contour. Regarding its longitudinal extent (e.g.,(along its longitudinal axis) the spacer can be designed as a cylindrical, conical, or prismatic body with a constant cross-section, or it can have a cross-section that changes along its longitudinal extension, resulting, for example, in a tapered, stepped, or longitudinally tapered profile, whereby the opening device must have a correspondingly complementary contoured recess. Additionally or alternatively, the spacer can have at least one longitudinally extending rib, groove, or toothing that forms a rotational coding, so that the opening device, in addition to its translational shape assignment, must also assume a defined rotational orientation relative to the spacer, thereby limiting the number of possible insertion orientations to one or a few discrete angular positions.By combining the overall contour, local sub-areas, longitudinal variation and rotary coding, the complexity of the shape coding and thus the security of the locking system against unauthorized opening attempts can be adapted to a wide extent to the respective requirements. An advantageous aspect is that the spacer has a maximum thickness, i.e., its maximum height, of more than 2 mm, particularly more than 3 mm, more particularly more than 4 mm, more preferably more than 5 mm, more preferably more than 8 mm, more preferably more than 10 mm, and more preferably 15 mm, so that geometrically unsuitable magnetic opening devices cannot enter the effective range of the locking device, particularly without causing damage. It is advantageous that the magnetic field of conventional magnets, especially dipoles, decreases with a factor of 1 / r³ over the distance. For protection against strong magnets, the spacer can also have a maximum thickness of more than 20 mm, particularly more than 30 mm, more particularly more than 40 mm, and preferably more than 50 mm. An advantageous aspect is that the spacer ensures a minimum distance between an unauthorized opening device, in particular an opening magnet, and the locking element to be actuated. The minimum distance is preferably more than 2 mm, more preferably more than 10 mm, and more preferably 15 mm. The minimum distance ensured by the spacer can also be more than 20 mm, in particular more than 30 mm, and more preferably more than 40 mm, and more preferably more than 50 mm. An unauthorized opening device does not have a geometry corresponding to the indentation or recess of the spacer. The bag, and in particular the bag body, is preferably designed to provide attenuation of radio signals and / or physical protection. The locking system is preferably designed as a passive assembly that can be unlocked by an authorized opening device. It is also conceivable that the locking system is designed as an active component, e.g., including a power source, actuators, data transmission, and / or data processing. An advantageous aspect is that the bag, in particular the closure system, has at least one shielding element for blocking magnetic fields. The shielding element can be designed so that only authorized magnetic fields, e.g., from the correct direction, can pass through and thus be coupled to the locking mechanism. In these areas, the shielding element can provide windows for the controlled passage of the at least one magnetic field. An advantageous aspect is that the bag, in particular the locking system, has at least one directional element for directing a magnetic field within the locking mechanism. Thus, at least one magnetic field can be directed precisely to a specific area. This can result in the locking mechanism being unlocked by an authorized opening device and / or being prevented from being unlocked by an unauthorized opening device. The locking device, in particular the locking units, and further in particular the locking elements, are preferably magnetic, especially ferromagnetic, magnetizable, or permanently magnetizable. The locking element and / or the carrier element and / or the clamping counter-unit and / or the intermediate element can be made of metal or plastic. Another aspect concerns a pocket for mobile devices, comprising: a cavity for receiving at least one mobile device; and a closure system for closing the cavity; wherein the closure system comprises: a closure element; a closure receptacle for receiving the closure element; and a locking device for locking the closure element in the closure receptacle. The locking device may comprise: at least one first locking unit, wherein the at least one first locking unit is switchable between a first locking position and a first release position, and / or at least one second locking unit, wherein the at least one second locking unit is switchable between a second locking position and a second release position. Preferably, the closure system includes a spacer.The spacer is intended to ensure that only authorized opening devices, and no unauthorized opening devices, can enter the operating range of the locking device (required insertion depth). Authorized opening devices preferably have at least one recess that can accommodate the spacer. The spacer can be designed as described above. The problem underlying the invention is also solved by a magnetic opening device with the features of claim 15. The invention relates to a magnetic opening device, also referred to as a detacher, for opening a previously described locking system. The opening device comprises at least one first magnetic device for generating a first magnetic field with at least one first principal magnetic field direction and at least one second magnetic device for generating a second magnetic field with at least one second principal magnetic field direction. Preferably, the at least one first principal magnetic field direction and the at least one second principal magnetic field direction enclose an angle greater than the minimum angle.The minimum angle is preferably greater than 10°, particularly greater than 20°, more preferably greater than 30°, more preferably greater than 45°, more preferably greater than 60°, more preferably greater than 75°, and more preferably greater than 90°. With three or more principal magnetic field directions, each pair of principal magnetic field directions encloses an angle. It is advantageous if at least one or all of the angles are greater than the minimum angle. It is additionally or alternatively advantageous if the at least two principal magnetic field directions are opposite in direction (reverse signs) and / or skew (not intersecting and not parallel). In a skew arrangement, preferably all angles in the space between the principal magnetic field directions should be greater than the minimum angle. It is also conceivable that the opening device comprises only one magnetic element, which generates a magnetic field with more than one principal magnetic field direction. This is the case, for example, with a ring magnet, which provides a multitude of radially oriented principal magnetic field directions. This allows for the control of multiple radially movable locking units, particularly locking elements. An advantageous aspect provides that the magnetic opening device generates at least one magnetic field with a magnetic flux density of at least 12,000 G (G: Gauss), in particular at least 16,000 G, more particularly at least 22,000 G, preferably at least 25,000 G, and more preferably at least 30,000 G. The magnetic flux density of the at least one magnetic field can be a maximum of 40,000 G, in particular at most 35,000 G, more particularly at most 32,000 G, more preferably at most 30,000 G, and more preferably at most 27,000 G. An advantageous aspect provides that the first magnetic device has a first polarity pattern and / or the second magnetic device has a second polarity pattern. Preferably, the first and second polarity patterns are different. Accordingly, the movable components can be selectively moved according to the locking system, thus enabling unlocking (magnetic coding). An advantageous aspect is that the first magnet device and the second magnet device are magnetized in a Halbach arrangement, so that an enhanced magnetic field is formed on an effective side directed towards the locking device and a reduced magnetic field is formed on a side facing away from the effective side. One advantageous aspect is that the magnetic opening device includes a recess for receiving a spacer of a locking system. In an embodiment corresponding to the spacer, the opening device has at least one recess or indentation designed to positively engage the spacer of the locking system, so that the opening device can only enter the operating area of ​​the locking device after the spacer has been immersed in the recess. For this purpose, the recess has a negative profile whose overall contour is complementary to the cross-sectional geometry of the spacer, whereby the overall contour can be, for example, polygonal, in particular triangular, rectangular, trapezoidal, pentagonal or L-shaped, and furthermore circular, semicircular, elliptical, teardrop-shaped, star-shaped or cross-shaped.Additionally or alternatively, the recess can have at least one convex area, at least one concave depression, at least one radially offset step, and / or at least one undercut in at least one partial region of its inner wall, each of which is complementary to a corresponding local contour of the spacer. With regard to its depth, the recess can have a constant cross-sectional geometry over its entire depth or a cross-section that changes along the insertion direction, such that, for example, a widening, a stepped, or a tapered profile is formed, which is complementary to the longitudinal variation of the spacer.Additionally or alternatively, the recess can have at least one groove, rib, or toothing extending in the insertion direction, which serves as a counter contour to the rotational coding of the spacer, so that the opening device can only be slid onto the spacer in a defined rotational orientation. The interaction of the recess with the spacer creates a mechanical authorization check, whereby only an opening device with a negative profile matching the respective spacer is able to receive the spacer and penetrate the effective area of ​​the locking device, while opening devices with a different or missing recess are reliably prevented from accessing the locking device by the spacer. The problem underlying the invention is also solved by a magnetic opening device with the features of claim 19. The invention relates to a magnetic opening device for opening a previously described locking system. The opening device preferably comprises a base body with at least one recess or indentation for receiving a spacer of a locking system. The opening device further comprises at least one magnetic device arranged on or in the base body, in particular a first magnetic device and a second magnetic device, for generating at least one magnetic field with at least one main magnetic field direction. Preferably, the main magnetic field direction is directed towards the recess of the base body and / or passes through the recess. Accordingly, the opening device can be brought into the effective range of a locking system and unlock a locking device. The recess or indentation is preferably designed as a blind hole or pocket. In one embodiment, the recess or indentation can be cylindrical, in particular circular or elliptical-cylindrical. The recess can additionally have two groove-shaped sections. The circular or elliptical cylinder is preferably arranged concentrically to the longitudinal axis. The grooves preferably extend perpendicular to the longitudinal axis and are preferably opposite each other. An advantageous aspect is that the first magnetic device and / or the second magnetic device is configured as at least one bar magnet, ring magnet, disc magnet, segment magnet, arc magnet, pot magnet, cuboid magnet, block magnet, flat magnet, cylindrical magnet, or horseshoe magnet. The ring magnet can be axial, diametrically, multipolar, or radially oriented. The ring magnet can have a radially internal first pole and a radially external second pole. Such a ring magnet essentially has a plurality of principal magnetic field directions along its circumference. In one embodiment, the first magnetic device is designed as a disc magnet and / or the second magnetic device as a ring magnet. The first magnetic device can be used to unlock the first locking device, in particular to move the support element against the spring force of the spring element. The second magnetic device can be used to unlock the second locking device, in particular to move the at least one positive locking element radially outwards. The problem underlying the invention is also solved by a system with the features of claim 20. The invention is directed to a system comprising a previously described bag and a previously described magnetic opening device. An advantageous aspect is that a spacer (positive geometry) and a recess (negative geometry) of the magnetic opening device correspond to each other. Preferably, the recess has a wider cross-section than the spacer. This ensures that only authorized magnetic opening devices can be used to unlock the coded locking device. An advantageous aspect is that the first polarization pattern and a third polarization pattern of the first locking device (first movable component) correspond to each other. Another advantageous aspect is that the second polarization pattern and a fourth polarization pattern of the second locking device (second movable component) correspond to each other. The first polarization pattern may differ from the second polarization pattern. The third polarization pattern may differ from the fourth polarization pattern. The term "polarization pattern" refers to a spatial arrangement and / or orientation of at least one magnetic dipole of the respective component. The polarization pattern can be defined by the number, arrangement, orientation, and / or strength of individual magnetic regions of the component.Corresponding polarization patterns mean that the spatial arrangement and orientation of the magnetic dipoles of the magnetic field source are matched to the spatial arrangement and orientation of the magnetic dipoles of the moving component in such a way that when the magnetic field of the magnetic field source acts on the moving component, a predetermined force and / or a predetermined torque is exerted on the moving component in a predetermined direction. A further embodiment is described below. The first movable component is mounted in a guide so that it can move to the left along a specific direction of movement. The first movable component has a first polarization pattern. The first magnetic field source has a third polarization pattern that corresponds to the first polarization pattern. When the first magnetic field with the first main magnetic field direction is applied, the first movable component moves to the left as intended. This intended movement can mean a movement into the respective release position. The second movable component is mounted in a guide so that it can move to the right along a specific direction. This second movable component has a second polarization pattern that differs from the first. The second magnetic field source has a fourth polarization pattern that corresponds to the second polarization pattern. When the second magnetic field is applied with the second primary magnetic field direction, the second movable component moves to the right as intended. If the first magnetic field source with the third polarization pattern is directed at the second moving component with the second polarization pattern, the polarization patterns do not correspond. In this case, no force is exerted on the second moving component in the predetermined direction, or a force is exerted in a direction deviating from the predetermined direction. The second moving component is not moved as intended. The correct assignment of the magnetic field source to the respective moving component is thus ensured by the correspondence of the polarization patterns. Consequently, the obstacle to circumventing the coding is further increased. Another aspect concerns a system consisting of a previously described bag and a mobile device, in particular a mobile phone, tablet, smartwatch, wearable, smart glasses, or headset. Another aspect concerns a system consisting of a previously described bag, a detacher, and a mobile device. Another aspect concerns a set consisting of at least one pocket and several spacers, wherein the spacers differ with respect to their geometric coding. Another aspect concerns a set consisting of at least one pocket, several spacers (the spacers differing with respect to their geometric coding), and several opening devices, the opening devices differing with respect to their geometric coding, in particular the recess. Preferably, an opening device and a spacer are included in pairs, which have corresponding positive and negative geometries. Thus, an operator can selectively adjust the geometric coding of the described pockets to unlock the locking device. The problem underlying the invention is also solved by a method described below. The method is designed for closing a cavity in a bag for a mobile device. The method comprises: inserting the closure element into the closure receptacle, locking the closure element in the closure receptacle by means of a first locking device, and locking the closure element in the closure receptacle and / or the first locking device in a first locking position by means of a second locking device. The locking device may comprise: at least one first locking unit, wherein the at least one first locking unit is switchable between a first locking position and a first release position, and at least one second locking unit, wherein the at least one second locking unit is switchable between a second locking position and a second release position.To insert the locking element into the locking receptacle, the tabs can first be brought together. In the joined position, the activation element can then be actuated, pushing the locking element out of the locking element magazine. The protruding locking element can then be inserted into the locking receptacle and is captured there by the locking mechanism. The locking mechanism can secure the locking element in the locking receptacle by force and / or form locking. The first locking unit can jam the locking element. The second locking unit can lock the first locking unit in such a way that the first locking unit can only be unlocked, and in particular the jamming released, when the second locking unit is no longer interacting with the first locking unit. The problem underlying the invention is also solved by a method described below. The method is designed for opening a cavity in a bag for a mobile device.The method comprises: applying at least one first magnetic field with a first principal magnetic field direction to a closure system of the bag, such that a first locking unit of the closure system is moved from a first locked position to a first release position; applying at least one second magnetic field with a second principal magnetic field direction to the closure system of the bag, such that a second locking unit of the closure system is moved from a second locked position to a second release position, wherein the first locking unit and the second locking unit are moved simultaneously into their respective release positions, or wherein the first locking unit is moved into its respective release position before the second locking unit, or wherein the second locking unit is moved into its respective release position before the first locking unit.The locking element can then be removed from the locking mechanism, thus providing access to the cavity and allowing the removal of a stored device. Removing the locking element from the locking mechanism. Another aspect concerns a method for opening a cavity in a bag for a mobile device, comprising: providing a bag with a closure system comprising a locking device and a spacer; providing a magnetic opening device with at least one recess corresponding to the spacer; applying at least one first magnetic field with a first principal magnetic field direction to the closure system of the bag, such that a first locking unit of the closure system is moved from a first locked position to a first release position and / or applying at least one second magnetic field with a second principal magnetic field direction to the closure system of the bag, such that a second locking unit of the closure system is moved from a second locked position to a second release position.The locking element can then be removed from the locking receptacle, so that the cavity becomes accessible and a stored terminal device can be removed. The locking system preferably comprises at least one base element, in particular a first base element and / or a second base element. The at least one base element can be designed as a base plate. The base element can have a circular, elliptical, triangular, or rectangular geometry. The base element can have rounded corners. The first base element can be arranged on the first tab. The second base element can be arranged on the second tab. The first base element can be connected to the locking element. The locking element can be movable relative to the first base element. The first base element and the locking element magazine can be fixed in place and / or formed as a single unit. The second base element and the locking receptacle and / or the second base element and the spacer can be fixed in place and / or formed as a single unit. The at least one tab, in particular the first tab and / or the second tab, can be multi-layered. The at least one base element can be arranged between any two layers of the at least one tab. At least one layer of the at least one tab has at least one opening through which the locking element, the locking element magazine, the activation element, and / or the pressure piece extends. The at least one base element has a larger cross-section than the at least one opening, so that the at least one base element secures the components arranged on it to the at least one tab. From the outside, for example, the spacer or the activation element can be visible, and the at least one base element can be concealed by the outer layer of the tab. It is conceivable that the at least one base element is bonded to one or both layers of the at least one tab on the inside.The opening may be limited by an eyelet. The opening may have a hem. At least one layer of at least one flap and the base element may be welded together. Further advantages, features, and details will become apparent from the following description, in which various embodiments of the invention are illustrated with reference to the drawing. The features mentioned in the claims and the description can each be essential to the invention individually or in any combination. Figure 1 shows pouches for holding mobile devices and for temporarily storing the devices; Figures 2A-B show a perspective view of a pouch opening; Figure 3 shows an exploded view of a first closure system of the pouch according to Figure 1; Figure 4 shows an exploded view of a second closure system of the pouch according to Figure 1, with the second locking elements in the locked position; Figure 5 shows an exploded view of the second closure system according to Figure 14, with the second locking elements in the released position; Figure 6A shows a view of the second closure system according to Figure 4 in the assembled state, with the second locking elements in the released position; Figure 6B shows a view of the second closure system according to Figure 4 in the assembled state, with the second locking elements in the locked position; Figure 7 shows a detail of a third closure system of the pouch according to Figure 1; Figure 8 shows...8 Pocket with spacer; Fig. 9A-B magnetic opening device with recess for spacer; Fig. 10A-F different geometries for spacers of the closure system and for recesses of the magnetic opening device; and Fig. 11A-B another spacer. The pockets 10, as shown in Figures 1, 2A, 2B, and 4, are designed to hold mobile devices, such as a mobile phone, in a cavity 14 bounded by a pocket body 12 and to prevent their use until the device is removed from the pocket 10. In the meantime, a pocket opening 16 of the pocket 10 is closed and locked by means of a locking system 18, so that the device is inaccessible. A special magnetic opening device 20, which is matched to the locking system 18, is required to unlock the locking system 18 and open the pocket opening 16. It is particularly advantageous if the locking system 18 and the magnetic opening device 20 are designed in a complex manner, making it difficult to circumvent the locking mechanism. The locking system 18, as shown in Fig. 3, comprises a locking element 24 extending along a longitudinal axis 22, a locking receptacle 26 for receiving the locking element 24, and a locking device 28 for locking the locking element 24 in the locking receptacle 26. The locking receptacle 26 can have at least two shell-shaped housing bodies. The locking device 28 has a first locking unit 30A and a second locking unit 30A. The first locking unit 30A is switchable between a first locking position and a first release position. The second locking unit 30A is switchable between a second locking position and a second release position. The first locking unit 30A and the second locking unit 30A are decoupled in such a way that, while the second locking unit 30A is in the second release position, the first locking unit 30A can be moved into the first locking position, and that, while the first locking unit 30A is in the first locking position, the second locking unit 30A can be moved into the second release position. The first locking unit 30A is designed as a clamping unit. The first locking unit 30A has one, two, or three first locking elements 32A or clamping elements, in particular balls, which are arranged in a carrier element 34. The first locking elements 32A are radially mounted in the carrier element 34 and can be displaced between radially inner and radially outer positions. The carrier element 34 is axially mounted in the locking receptacle 26 and can be displaced between an active position and a passive position. The first locking unit 30A also has a tapered clamping counter-unit 36 ​​in the form of a cap. In the first release position, the first locking elements 32A are arranged in a position in which they can be moved radially freely or with only minimal force. In the first release position, the locking element 24 can be easily removed from the locking receptacle 26.In the first locking position, the locking elements 32A are clamped between the locking element 24 and the clamping unit 36. In this position, the cross-section of the clamping unit 36 ​​is reduced due to its tapered geometry. A spring element 38 is provided, which biases the support element 34 into the active position and thus axially biases the first locking elements 32A into the clamping unit 36. Therefore, the first locking elements 32A are in the first locked position when at rest. The tapered section of the clamping unit 36 ​​forms a ramp, which serves as the first control cam for guiding the first locking elements 32A. The first locking elements 32A can be displaced along the first control cam between the first release position and the first locked position. The second locking unit 30B is designed as a positive-locking lock, as shown in Fig. 3. The second locking unit 30B has one, two, or three second locking elements 32B, or positive-locking elements, in particular balls. Furthermore, the second locking unit 30B has an intermediate element 40, which has an inclined section 42 and a flat section 44. In the assembled state, the support element 34 is at least partially located within the intermediate element 40. The intermediate element 40 and the support element 34 define an annular spring space 46 for receiving the spring element 38. The intermediate element 40 and the support element 34 are in direct contact with each other, with the spring element 38 biasing the intermediate element 40 towards the support element 34. The support element 34 is axially displaceable by means of the intermediate element 40. The inclined section 42 and the planar section 44 serve as a second control track for guiding the second locking elements 32B. The second locking elements 32B are movable along the second control track between the second release position and the second locking position. The second locking elements 32B are designed to positively lock or block the support element 34. Therefore, in the second locking position, the second locking elements 32B can prevent axial movement of the support element 34. The locking system 18 also includes a spring element 38, in particular a compression spring, which biases the carrier element 34 into the active position, in which the first locking elements 32A are clamped between the locking element 24 and the clamping counter-unit 36. To unlock the first locking unit 30A, a force must be applied opposite to the spring force of the spring element 38. The spring element 38 can be arranged in the annular spring space 46 between the carrier element 34 and the intermediate element 40. The second locking elements 32B are in the second locking position when they are arranged axially between the planar section 44 and a locking body 48 of the locking receptacle 26. Accordingly, the first locking unit 30A, in particular the support element 34, cannot be moved axially opposite the spring element 38. As long as the second locking elements 32B are in the second locking position, the first locking unit 30A cannot be switched to the first release position. In this embodiment, the first locking unit 30A serves to hold the locking element 24, and the second locking unit 30B serves to secure the first locking unit 30A. To unlock, both the first and the second locking units 30B must be switched, in particular moved, into their respective release positions. The clamping unit 36 ​​can widen towards the spring element 38. Accordingly, the spring element 38 forces the support element 34 and / or the at least one clamping element into the narrowing cross-section of the clamping unit 36. Figures 4, 5, 6A, and 6B show an alternative locking system 18, in which the second locking unit 30B differs in design from that shown in Figure 3. When the second locking unit 30B is in the second locking position, the first locking unit 30A is also secured in the first locking position by the second locking unit 30B. According to Figure 4, the second locking unit 30B also has an intermediate element 40, which is multi-part. In this case, the intermediate element 40 has a retaining section 76 and at least two wing sections 78 rotatably mounted in or on the retaining section 76. Each wing section 78 has a control element 80. The wing sections 78 can be pivoted between the second release position and the second locking position. For this purpose, a magnetic field can be applied externally, which exerts a magnetic force on the control elements 80.The control elements 80 can be displaced radially outwards by means of magnetic force. The axis of rotation of the wing sections 78 is preferably located in a central region of the wing sections 78. In Figs. 4 and 6B, the wing sections 78 are in the closed position. In Figs. 5 and 6A, the wing sections 78 are in the released position. In the closed position, the wing sections 78 can extend substantially parallel to the longitudinal axis 22. In the released position, the wing sections 78 can pivot away from the longitudinal axis 22, thus forming an angle with the longitudinal axis 22. A radially inwardly directed arm section 82 is arranged on each wing section 78, which contacts the support element 34 and restricts or locks their movement in the second locking position. In the second released position, the arm sections 82 extend perpendicular to the longitudinal axis 22. The wing section 78 and / or the arm section 82 can each, or together, form a second locking element 32B and / or a positive locking element. A free end of the arm sections 82 is arranged between the support element 34 and a spring counterpart section 84. The free end of the arm section 82 contacts the spring counterpart section 84. The spring counterpart section 84 can form a contact point for the spring element 38. The spring counterpart section 84 can have an opening into which the support element 34 extends, at least partially. It is conceivable that a spring counterpart section 84 is omitted, so that the free end of the arm section 82 directly contacts the spring element 38. The spring element 38 pushes the spring counter-section 84 towards the first locking elements 32A. Without an external force, the first locking unit 30A and the second locking unit 30B are each forced into their respective locked positions. The wing sections 78 cause the support element 34, and thus the first locking elements 32A, to be pressed into the clamping counter-section 36. This secures the locking element 32 by the first locking unit 30A. For closing, the force flow therefore occurs from the spring element 38, via the spring counter-section 84, the arm sections 82, the support element 34, into the first locking elements 32A, which clamp the locking element 24 between them. To open the lock, the second locking unit 30B must first be unlocked. For this, the wing sections 78 must be displaced radially outwards by an opening device 20. This can be achieved either by two individual magnets 64 acting radially outwards or by a ring magnet acting radially outwards. The control elements 80 pivot the wing sections 78 outwards against the spring force of the spring element 38. This causes the spring element 38 to compress. The spring force that pushes the support element 34 into the clamping counter-unit 36 ​​is thus compensated, so that the first locking unit 30A can be moved from the first locked position to the first release position. The support element 34 can be directly coupled to the wing sections 78 and / or arm sections 82 or fall into the first release position by gravity. It is conceivable that – as shown in Fig.4 to 6B shown - also a further magnet 64 may be provided for axially pulling the carrier element 34. The control elements 80 can be designed as spheres. The control elements 80 can be guided in the retaining section 76 or in the locking body 48. A second control cam can be provided for this purpose. Figure 7 shows an alternative embodiment of the locking system 18. Most components are based on the embodiment shown in Figure 3. The deviations are described below and / or can be seen in Figure 7. The locking system 18 has two groove-shaped locking recesses 52 on one side 50 of the locking system 18. The first locking unit 30A has a radially displaceable first locking element 32A, which can be arranged in a first locking recess 52A or is arranged in the first locking position in the first locking recess 52A. The first locking recess 52A forms a first undercut, so that in the first locking position a positive-locking connection is established between the locking element 24 and the locking receptacle 26. The second locking unit 30B also has a radially displaceable second locking element 32A, which can be arranged in a second locking recess 52B or is arranged in the second locking recess 52B in the second locking position. The second locking recess 52B forms a second undercut, so that in the second locking position a redundant, further positive-locking connection is established between the locking element 24 and the locking receptacle 26. The first locking element 32A and the second locking element 32A are preferably spring-loaded. Such springs can bias or force the first locking element 32A and the second locking element 32A into the first and second locking positions. To facilitate insertion of the locking element 24 into the locking receptacle 26, the locking element 24 can have a chamfered tip (free end).Alternatively or additionally, it is conceivable that the first locking element 32A and / or the second locking element 32A each have an insertion chamfer. The locking recesses 52 can be arranged in a plane perpendicular to the longitudinal axis 22. The first locking element 32A and the second locking element 32B can also be arranged in a plane perpendicular to the longitudinal axis 22. The locking recesses 52 can be positioned opposite each other (180°) along the circumference of the locking element 24. Other angles are also conceivable, e.g., 45°, 60°, 90°, 120°, etc. Three or more radially displaceable locking elements 32 can also be provided. The locking elements 32 and their locking recesses 52 can be evenly distributed along the circumference. Depending on the arrangement, the magnetic opening device 20 must provide unlocking forces corresponding to the main magnetic field directions. In this arrangement, this can be achieved, for example, with a ring magnet or several individual magnets. It is also conceivable that the locking elements 32 and locking recesses 52 are axially displaced relative to each other.Here too, the main magnetic field direction must be appropriately designed. A distribution along the circumference and an axial distribution can also be combined. It is also conceivable that the locking mechanisms of Figs. 3 and 4 could be combined. Alternatively or additionally, at least one spring-loaded first locking element 32A can be arranged on the locking element 24 and engage in a first opening of the locking device 28 in the first closed position. Alternatively or additionally, at least one second locking element 32A can be arranged on the locking element 24 and engage in a second opening of the locking device 28 in the second closed position. The first opening and the second opening can be distributed axially and / or along the circumference of the locking element 24 and / or the locking device 28. If a locking recess 52A is provided, the respective locking element 32 is in a radially inner position in the respective closed position and in a radially outer position in the release position. If openings are provided on the locking receptacle 26, the respective locking element 32 is in a radially outer position in the respective closed position and in a radially inner position in the release position. The locking system 18, in particular the locking receptacle 26, has a spacer 54. The spacer 54 is located in the area of ​​the locking device 28. The spacer 54 extends in a direction opposite to the direction of entry or insertion of an opening device 20. Accordingly, to unlock the locking system 18, the opening device 20 is brought into contact with the spacer 54. The spacer 54 is designed to prevent any opening device 20, especially an unauthorized one, from entering the effective range of the locking device 28. The effective range is determined by measuring the distance of a magnet with a factor of 1 / r³. The spacer 54 forms a mechanical barrier that prevents the opening device 20 from being moved into or inserted into a position required to release the locking device 28. To allow an authorized opening device 20 to enter the operating range of the locking device 28 despite the presence of the spacer 54, the opening device 20, as shown in Fig. 9A, has a recess 60 into which the spacer 54 can be partially or completely inserted, or in which the spacer 54 can be partially or completely received. Thus, when the opening device 20 is opened or closed, the spacer 54 can enter the recess 60 of the opening device 20, allowing the opening device 20 to reach the operating range of the locking device 28. The opening device 20 has, in particular, a recess 60 with an elliptical central section 56 and two web-shaped outer sections 58. Since the spacer 54 and the recess 60 are preferably configured to correspond to each other, the same reference numerals are used for the sake of simplicity. The recess 60 and the spacer 54 thus preferably form a shape code that establishes a geometric relationship between the opening device 20 and the locking system 18, similar to a key-and-lock principle. The spacer 54 can have a positive geometry, and the recess 60 of the opening device 20 can have a negative geometry. The positive and negative geometries can preferably be configured to correspond to each other. The negative geometry is preferably larger in cross-section than the positive geometry to allow for insertion. It is also conceivable that the negative geometry is located at the locking receptacle and the positive geometry at the opening device (comparable to a screw and wrench). The spacer 54 has an asymmetrical contour, so the recess 60 of the opening device 20 must have a corresponding, also asymmetrical, counter-contour in order to positively engage the spacer 54. This asymmetrical design ensures that the opening device 20 can only be inserted into the locking system 18 in predefined orientations or in a single, predefined orientation (poka-yoke), thereby further increasing tamper resistance and simplifying the use of the authorized opening device 20. As shown in Fig. 8, the spacer 54 has a projection comprising an elliptical central section 56 and two web-shaped outer sections 58. The outer sections 58 lie opposite each other in a straight line. One, three, four, five, or more outer sections 58 can also be provided. The free ends of the outer sections 58 can be square or rounded.Alternative geometries for spacers 54 are also possible. Figures 10A-F show some alternatives. The following shapes are conceivable: rectangular, triangular, pentagonal, hexagonal, concave cross shape, a single strip, several parallel strips, Torx, etc. According to Figure 8, the spacer 54 is formed in one piece with a base element 59. For illustrative purposes, in Figure 8, the spacer 54 is not covered by an outer layer of the second tab 66B. In Figure 8, the base element 59 is shown as an example of a triangular shape with rounded corners. In Figure 7, the base elements 59 are shown as an example of a substantially rectangular shape with rounded corners. The rounded corners prevent the tabs 66 from being damaged or punctured. Figures 11A and 11B show another embodiment of a spacer 54. The spacer 54 has two web-shaped outer sections 58 and a central section 56. The outer sections 58 can run parallel or transversely, in particular perpendicularly, to the insertion direction 70. The outer sections 58 can project beyond the central section 56. As shown in Fig. 11B, a web connects the two outer sections 58, with the web projecting beyond the central section 56. The web can be tapered, so that a centering aid can be formed on the central section 56. The web can also project beyond the outer sections 58. The spacer 54 can also be formed integrally with a base element 59, which is advantageously triangular with rounded corners. For further fastening, the spacer 54 can be arranged on a plate 57, which is positioned between the spacer 54 and the base element 59. The plate 57 can be circular. The spacer 54, plate 57, and base element 59 can be formed integrally. A plate 57 can simplify the fixing of the spacer 54 to the tabs 66. The plate 57 can be designed to correspond to an eyelet arranged on the textile of the tab 66. The plate 57 can be clipped into the eyelet. The base element 59 and / or the plate 57 can be flat relative to the spacer 54, with the spacer 54 providing a raised section to form a shape-coded distance. The spacer 54 can be formed integrally with a housing part of the locking system 18, in particular with the locking element 24 and / or the locking receptacle 26, and further, in particular, with the locking body 48, or it can be joined to the locking system 18 as a separate component. In the latter case, the spacer 54 can be exchanged to provide different shape codes for various application scenarios. It is conceivable that a set with several spacers 54 and several opening devices 20 is provided, each differing in terms of its positive and negative geometry. For unlocking, the positive and negative geometries should, of course, be present in pairs. The base element 59 can preferably form the locking body 48 or at least a part thereof. An opening device that lacks a recess for a spacer or has a recess for a spacer with a different shape code is prevented by the spacer from achieving sufficient insertion depth, thus reliably preventing the locking device from being unlocked. In this way, the spacer, in conjunction with the corresponding recess of the opening device, represents a simple yet effective measure for mechanically coding access authorization to the locking system and preventing unauthorized opening attempts. The spacer 54 can have a thickness of more than 2 mm at its maximum point, in particular more than 3 mm, further in particular more than 4 mm, preferably more than 5 mm, further in particular more than 8 mm, more in particular more than 10 mm, and more in particular 15 mm. For protection against strong magnets, the spacer 54 can also have a thickness of more than 20 mm at its maximum point, in particular more than 30 mm, further in particular more than 40 mm, and preferably more than 50 mm. Figures 3, 7, and 9B show, by way of example, the main magnetic field directions 62 of the respective magnets 64 of the opening devices 20. According to Figure 3, three separate magnets 64 are provided, which generate two magnetic fields, each with two radial main magnetic field directions 62, and one magnetic field with a linear main magnetic field direction 62. Accordingly, the second locking elements 32B can be moved radially outward into the second release position, and then the first locking elements 32A can be moved into the first release position by means of the carrier element 34. As shown in Fig. 7, two separate magnets 64 are provided, which generate two magnetic fields, each with two radial main magnetic field directions 62. Accordingly, the first locking element 32A can be moved radially to the left into the first release position, and the second locking element 32B can be moved radially to the right into the second release position. According to Fig. 9B, a magnet 64 in the form of a ring magnet, particularly an elliptical one, is provided, which generates a magnetic field with a plurality of radial main magnetic field directions 62. Accordingly, several locking elements 32 can be moved radially outwards into their respective release positions – as required, for example, in Fig. 7. Fig. 9B shows, by way of example, eight main magnetic field directions 62, eight locking elements 32, and the locking element 24. According to Figs. 1, 2A, and 2B, the bag 10 has a bag body 12 that defines the cavity 14. The bag body 12 can have a pocket opening 16 through which the mobile device can be inserted into the cavity 14. The bag body 12 has a first flap 66A and a second flap 66B. The flaps 66 are arranged in the area of ​​the pocket opening 16 and define the pocket opening 16. The pocket opening 16 can be locked by means of the locking system 18. In the open state, the flaps 66 are spaced apart from each other. In the closed state, the flaps 66 lie flat against each other. The first tab 66A and the second tab 66B are hinged to the remaining body of the pocket 12. Each tab 66A and the second tab 66B is pivotable about a pivot axis 68 on the remaining body of the pocket 12. According to Fig. 2A, the respective pivot axis 68 runs parallel to, or according to Fig. 2B, perpendicular to, an insertion direction 70 along which the terminal device can be inserted into the pocket 12. When the pocket 10 is closed, the pocket body 12 extends along the insertion direction 70 and has a flat surface. When the pocket 10 is closed, the insertion direction 70 runs perpendicular to the longitudinal axis 22 of the closure element 24. The locking element 24 is arranged on the first tab 66A as shown in Figs. 2A and 2B. The locking receptacle 26 and the locking device 28 are arranged on the second tab 66B. The locking system 18 also includes a locking element magazine 72 and an activation element 74, in particular a push button, which are arranged on the first tab 66A. The locking element 24 can be located in the locking element magazine 72 when open. The locking element 24 is movable relative to the first tab 66A and the locking element magazine 72 along the longitudinal axis 22 between a provision position and a retraction position. In the retraction position, the locking element 24 is preferably completely received in the locking element magazine 72. In the provision position, the locking element 24 protrudes from the locking element magazine 72 and can interact with the locking device 28. The locking element 24 can be moved into the deployment position by actuating the activation element 74. In Fig. 6A, the activation element 74 is not pressed. In Fig. 6B, the activation element 74 is pressed and thus at least partially immersed in the locking element magazine 72. The locking element magazine 72 has a return spring that forces the locking element 24 into the retracted position. Therefore, when actuating the activation element 74, the spring force of the return spring must be overcome. The return spring must also be overcome when locking the locking element 24 in the locking receptacle. It is conceivable that a detent mechanism is provided which holds the locking element 24 in the deployment position. By actuating the activation element 74 again, the locking element 24 can be released back into the retracted position. The activation element 74 protrudes on an outer surface of the first tab 66A.The locking element 24 can be extended on an inside side of the first tab 66A as shown in Fig. 6B.

Claims

A bag (10) for mobile devices, comprising: - a cavity (14) for receiving at least one mobile device; and - a closure system (18) for closing the cavity (14); wherein the closure system (18) comprises: - a closure element (24); - a closure receptacle (26) for receiving the closure element (24); and - a locking device (28) for locking the closure element (24) in the closure receptacle (26); wherein the locking device (28) comprises: - at least one first locking unit (30A), wherein the at least one first locking unit (30A) is switchable between a first locking position and a first release position, and - at least one second locking unit (30B), wherein the at least one second locking unit (30B) is switchable between a second locking position and a second release position. Bag (10) according to claim 1, wherein the at least one first locking unit (30A) and the at least one second locking unit (30B) are decoupled from movement in such a way that while the at least one second locking unit (30B) is in the second release position, the at least one first locking unit (30A) is movable into the first locking position, and / or that while the at least one first locking unit (30A) is in the first locking position, the at least one second locking unit (30B) is movable into the second release position. Bag (10) according to claim 1 or 2, wherein the closure system (18) is arranged such that it can only be opened with a magnetic opening device (20) which has at least two principal magnetic field directions (62). Bag (10) according to claim 3, wherein the at least two principal magnetic field directions (62) enclose an angle greater than 45°, and / or are opposite and / or skew. Bag (10) according to one of the preceding claims, wherein the at least one first locking unit (30A) comprises: - at least one clamping element for clamping the locking element (24), - a first control cam for guiding the at least one clamping element, and - a support element (34) axially displaceable between an active position and a passive position, in which the at least one clamping element is arranged. Bag (10) according to one of the preceding claims, wherein the at least one first locking unit (30A) comprises: - a clamping counter unit (36), wherein the at least one clamping element is clamped in the first locking position between the locking element (24) and the clamping counter unit (36), so that the locking element (24) is fixed in the locking receptacle (26). Pocket (10) according to one of the preceding claims, wherein the at least one second locking unit (30B) comprises: - at least one positive locking element for positive locking of the carrier element (34), - a second control cam for guiding the at least one positive locking element. Bag (10) according to one of claims 6 or 7, wherein the closure system (18) comprises: - at least one spring element (38) for acting upon the carrier element (34) in the active position and / or for acting upon the second control cam towards the carrier element (34). Bag (10) according to one of the preceding claims, wherein the at least one first locking unit (30A) has at least one radially displaceable first locking element (32A) which is arranged in the first locking position in at least one first opening of the closure element (24). Bag (10) according to one of the preceding claims, wherein the at least one second locking unit (30B) has at least one radially displaceable second locking element (32B) which in the second locking position is arranged in at least one second opening of the closure element (24). Bag (10) according to one of the preceding claims, wherein the at least one second locking unit (30B) has at least one pivotable second locking element (32B). Bag (10) according to one of the preceding claims, wherein the bag (10) comprises a bag body (12) with a first flap and a second flap, wherein the closure element (24) is arranged on the first flap and the closure receptacle (26) and the locking device (28) are arranged on the second flap. Bag (10) according to one of the preceding claims, wherein the closure receptacle (26) has at least one spacer (54) such that a magnetic opening device (20) must have a recess (60) for receiving the spacer (54) in order to enter an effective area of ​​the locking device (28). Bag (10) according to one of the preceding claims, wherein the spacer (54) has a maximum thickness of more than 3 mm, so that geometrically unsuitable magnetic opening devices (20) cannot enter the effective area of ​​the locking device (28). Magnetic opening device (20) for opening a closure system (18) of a bag (10) according to one of the preceding claims, the opening device (20) comprising: - a first magnetic device for generating a first magnetic field with at least one first principal magnetic field direction (62), - a second magnetic device for generating a second magnetic field with at least one second principal magnetic field direction (62), wherein the at least one first principal magnetic field direction (62) and the at least one second principal magnetic field direction (62) enclose an angle greater than 30°, and / or are opposite in direction and / or are skew. Magnetic opening device (20) according to claim 15, wherein the first magnetic device has a first polarity pattern and the second magnetic device has a second polarity pattern, wherein the first polarity pattern and the second polarity pattern are configured differently. Magnetic opening device (20) according to claim 15 or 16, wherein the magnetic opening device (20) comprises: - a recess (60) for receiving a spacer (54) of a locking system (18). Magnetic opening device (20) for opening a closure system (18) of a bag (10) according to one of claims 1 to 14, the opening device (20) comprising: - a base body comprising a recess (60) for receiving a spacer (54) of a closure system (18), and - at least one magnetic device arranged on or in the base body for generating at least one magnetic field with at least one main magnetic field direction (62), wherein the main magnetic field direction (62) is directed towards the recess (60) of the base body. Magnetic opening device (20) according to one of claims 15 to 18, wherein the first magnetic device and / or the second magnetic device is designed as at least one bar magnet, ring magnet, disc magnet, segment magnet, arc magnet, pot magnet, cuboid magnet, block magnet, flat magnet, cylinder magnet or horseshoe magnet. System comprising a bag (10) according to one of claims 1 to 14 and a magnetic opening device (20) according to one of claims 15 to 18 .

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