A holding device for holding an energy store in a releasable manner on a frame, in particular a bicycle frame

Abstract

The present invention relates to a retaining device (10) for releasably retaining an energy storage device (12), particularly a bicycle energy storage device, on a frame (14), particularly a bicycle frame, the retaining device having at least one locking unit (16) configured to axially fix and releasably lock the energy storage device (12) in a locked state (18). It is proposed that the locking unit (16) has at least one first locking element (20) and at least one second locking element (22) corresponding to the first locking element (20).

Description

Background Technology

[0001] A retaining device has been proposed for releasably holding an energy storage device, particularly a bicycle energy storage device, to a frame, particularly a bicycle frame, the retaining device having at least one locking unit configured to axially fix the energy storage device in a locked state and to releasably lock the energy storage device. Summary of the Invention

[0002] The present invention relates to a retaining device for releasably holding an energy storage device, particularly a bicycle battery, to a frame, particularly a bicycle frame, the retaining device having at least one locking unit configured to axially fix and releasably lock the energy storage device in a locked state.

[0003] The locking unit is proposed to have at least one first locking element and at least one second locking element corresponding to the first locking element. Through this configuration of the retaining device according to the invention, a simple and / or secure axial fixation and releasable locking of the energy storage device, particularly in and / or on a bicycle frame, can be advantageously achieved. Advantageously, in the locked state of the locking unit, even under severe shaking, slippage or loosening of the energy storage device can be advantageously resisted, particularly to the greatest extent possible, and the particularly reliable contact closure of the energy storage device's electrical contacts can be ensured. Advantageously, locking and / or unlocking of the energy storage device can be achieved by the user in a tool-free manner. Advantageously, high user-friendliness can be achieved.

[0004] Preferably, the retaining device is configured as a bicycle energy storage device. In particular, the retaining device is configured to enable at least temporary positioning of the energy storage device within and / or on the frame, especially within and / or on the bicycle frame, and particularly to enable axial fixation and releasable locking of the energy storage device within this temporary positioning, as well as ensuring the electrical contact of the energy storage device is engaged. For axial fixation, releasable locking, and electrical contact engagement of the energy storage device, the retaining device includes at least one locking unit. Preferably, the retaining device includes at least one carrier unit having at least one carrier element and at least one connecting element. Preferably, at least one carrier element of the carrier unit constitutes a guide rail, which is particularly configured to guide the energy storage device during assembly, especially during insertion and / or during disassembly, especially during pull-out, and hereby pre-determines the axis of motion. In particular, the guide rail is configured to at least pre-determine the orientation of the energy storage device when it is inserted into the retaining device. In particular, the retaining device is configured for attachment to a bicycle frame, preferably within the bicycle frame, such as in the top tube, seat tube, steering tube, or preferably bottom tube. Alternatively or additionally, the retaining device, preferably a carrier unit or carrier element, can be constructed at least partially as a single piece with the bicycle frame, or at least a portion of the retaining device, preferably a carrier unit or carrier element, can be connected to the bicycle frame as a single piece, for example, by welding or bonding. This advantageously avoids misassembly and / or damage to the energy storage device and / or the retaining device. Alternatively, the retaining device can be constructed without a carrier unit, and the energy storage device can be connected in a locked state directly to the retaining device via a locking unit through at least one connecting element arranged on and / or directly connected to the energy storage device. At least one connecting element can be constructed as a single piece with the energy storage device, or can be form-locked and / or force-locked connected to the energy storage device. The retaining device is particularly configured for attachment to the frame, preferably within or on the bicycle frame, such as in the top tube, seat tube, steering tube, or preferably bottom tube. For securing to or in a bicycle frame, retaining devices typically include fastening elements such as screw-on elements, plug-in elements, or locking elements. In this context, "secured" should be understood specifically as a fixed-position connection and / or a rotation-resistant connection. Alternatively or additionally, it may be considered that the retaining device is constructed at least partially as a single piece with the bicycle frame, or that at least a portion of the retaining device, particularly the locking unit, is integrally connected to the bicycle frame, for example, by welding or bonding. "One-piece" should be understood specifically as a material-locking connection, such as by welding and / or bonding processes, and particularly advantageously as molding, such as by casting and / or by single-component or multi-component injection molding. Advantageously, "one-piece" should also be understood as monolithic."One-piece" should be understood in particular as being formed as a single part. Preferably, the part is manufactured from a single blank, mass block, and / or casting, particularly preferably by injection molding, especially single-component injection molding and / or multi-component injection molding. "Form-locking" should be understood in particular as the mutually form-locking connection of the abutting surfaces of components applying a retaining force acting in the normal direction of said surfaces to each other. In particular, the components are geometrically interlocked.

[0005] "Energy storage device" should be understood in particular as a component capable of receiving, storing, and releasing energy, especially chemical energy and / or preferably electrical energy. In particular, the energy storage device can be constructed as a gas tank and / or a liquid tank. In particular, the energy storage device can be constructed as an electrochemical capacitor and / or a fuel cell. Preferably, the energy storage device is constructed as a battery storage device, especially as a storage battery, and preferably as a bicycle battery. In particular, the energy storage device is configured to provide energy to the drive unit of a bicycle, preferably an auxiliary motor of an electric bicycle (Pedelec) or an electric bicycle.

[0006] The term "locking unit" should be understood in particular as a unit configured to axially fix the energy storage device in a locked state and lock it in a releasable manner. Preferably, the locking unit includes at least one first locking element and at least one second locking element corresponding to the first locking element. Preferably, the first and second locking elements are supported on the base of the locking unit in a movable, particularly rotational, manner. Preferably, the first and second locking elements are configured as corresponding locking hooks supported on the locking unit in a rotational manner, wherein, in the locked state, the first locking element prevents rotational movement of the second locking element in the locked position. Alternatively or additionally, the first and / or second locking elements and / or other locking elements of the locking unit can also be configured as latches and / or crank levers and / or corresponding latching elements and / or spring locking elements. In particular, the geometry and / or material and / or function of the first locking element can differ from the geometry and / or material and / or function of the second locking element and / or other locking elements. Preferably, the outer contours of the first and second locking elements are designed such that the locking elements can be form-fitted and / or force-fitted connected in the locked state. Preferably, the locking unit is a component of the retaining device. However, it is also conceivable that the locking unit, or various other units and / or elements of the locking unit, especially the locking elements, are components of the energy storage device and are form-fitted and / or force-fitted connected to the energy storage device or constructed as a single piece. Advantageously, when the energy storage device is assembled in the retaining device, the user can be notified of the correct positioning in the locking unit and / or the achievement of the locking state of the locking unit by a signal, especially acoustic, such as by emitting a clicking sound. Preferably, the first and second locking elements are inaccessible from the outside and are completely arranged within the base of the locking unit. This advantageously prevents unauthorized access and unauthorized unlocking of the locking unit. Advantageously, it improves the anti-theft protection of the energy storage device. The locking elements are constructed "correspondingly" to other locking elements, and should be understood in particular as the locking elements being coordinated with each other through appropriate arrangement and / or geometric shaping and / or material selection, and in particular acting together to lock and / or unlock the object. "Locked state" should be understood in particular as a state in which the energy storage device is axially fixed in the holding device by means of the locking unit and is locked in a locked position. In this context, "axially fixed" should be understood in particular as a fixed and / or anti-rotational connection of the energy storage device in a position along or parallel to the main extension direction of the energy storage device. Here, the "main extension direction" of the object should be understood in particular as a direction that extends parallel to the longest edge of the smallest geometric cuboid that just still completely surrounds the object. "Setting" should be understood in particular as specially designed and / or specially equipped."Object settings for a defined function" should be understood in particular as: the object satisfies and / or performs this defined function in at least one application state and / or operating state.

[0007] Furthermore, it is proposed that the first and second locking elements are supported on the locking unit in a manner that allows for movement, particularly rotational movement, wherein, in the locked state, the first locking element prevents the movement, particularly rotational movement, of the second locking element. This advantageously allows for particularly secure locking of the energy storage device using particularly simple technical means. "Supported in a manner that allows for rotational movement" should be understood in particular as the object being supported on a fixed axis of rotation and being able to move at least partially about the axis of rotation in at least one rotational direction in at least one operating state different from the locked state. Alternatively, it is conceivable that the first and / or second locking elements are supported on the base of the locking unit in such a way that translational movement is possible, at least in operating states different from the locked state. Furthermore, it is conceivable that only the first locking element or only the second locking element is movable, and that the second locking element or the first locking element is fixedly connected to the base of the locking unit. For example, particularly in an alternative configuration, the first locking element is constructed as a latching element, such as a latching groove, fixedly connected to the base position of the locking unit, while the second locking element is constructed as a latching element, such as a latching hook, supported in a movable manner and latching with the first locking element in the locked state.

[0008] Furthermore, it is proposed that the locking unit has at least one tensioning unit configured to pre-tighten at least the first locking element and / or the second locking element by means of tension force in the locked state. This advantageously enables particularly secure and / or positionally accurate axial fixation of the energy storage device. The tensioning unit preferably has at least one tensioning element arranged on the first locking element or the second locking element, and is particularly form-fitted and / or force-fitted connected to the first locking element or the second locking element. In particular, the tensioning unit can have multiple tensioning elements. Advantageously, at least one tensioning element of the tensioning unit is arranged on the first locking element and the second locking element of the locking unit, respectively. Preferably, the first tensioning element is arranged on the first locking element, and the second tensioning element is arranged on the second locking element. In particular, the first tensioning element and the second tensioning element and / or other tensioning elements of the tensioning unit are constructed at least partially different and / or arranged in different ways on and / or connected to the locking elements of the locking unit. In particular, the tension force used to preload the first locking element via the first tensioning element of the tensioning unit can differ, especially in magnitude and / or in point of application and / or in direction of action, from the tension force used to preload the second locking element via the second tensioning element of the tensioning unit and / or by means of another tensioning element to preload another locking element. "Tensioning element" should be understood in particular as an element visible to the naked eye that has at least one extension capable of elastically changing by at least 10%, especially at least 20%, preferably at least 30%, and particularly advantageously at least 50% in normal operation, and that generates, in particular, a reaction force relating to and preferably proportional to the change in the extension, resisting the change. "Extension" of the element should be understood in particular as the maximum distance between two points of the element's vertical projection onto a plane. "Visible element" should be understood in particular as an element having an extension of at least 1 mm, especially at least 5 mm, and preferably at least 10 mm. Preferably, the tension force applied by the tensioning element of the tensioning unit is caused by the corresponding reaction force generated when the elasticity of the extension of the tensioning element changes, and is particularly proportional to this reaction force. Preferably, the first tensioning element, the second tensioning element, and / or the additional tensioning element of the tensioning unit are constructed as springs, particularly as torsion springs and advantageously as helical torsion springs and / or rotary springs, and are particularly made of metal and / or metal alloys, preferably steel and especially preferably spring steel. Alternatively, it is conceivable that the first tensioning element, the second tensioning element, and / or the additional tensioning element of the tensioning unit are also constructed as elastic elements different from springs and / or made, for example, of plastics and / or composite materials.

[0009] Furthermore, it is proposed that the tensioning unit is constructed such that, when the locking state is released, the energy storage device is ejected by tension force. Advantageously, this allows for particularly simple retrieval of the energy storage device by the user. Advantageously, it achieves high user-friendliness. In particular, in the locked state, at least the first or second locking element of the locking unit is pre-tensioned by at least the first or second tensioning element of the tensioning unit such that the direction of the tension force is directed towards the ejection direction of the energy storage device. Preferably, when the locking state is released to remove the energy storage device from the holding device, the tension force acts on the energy storage device such that the energy storage device is ejected from the holding device in the ejection direction. In particular, when the locking state is released, the tension force applied to the second locking element by the second tensioning element acts such that the second tensioning element causes the second locking element to rotate in the ejection direction. In particular, when the locking state is released, the tension force applied to the second locking element by the second tensioning element acts on the second locking element in such a way that the second locking element, by means of rotational motion, throws out the connecting element, which is fixed in the groove of the second locking element in the locked state, in the throwing direction. This connecting element is connected to the carrier unit or the energy storage device. In particular, the connecting element is constructed as a stud and has a circular cross-section. In the locked state, the connecting element is fixed in the groove of the second locking element of the locking unit and forms a shape that locks into the outer contour of the groove of the locking element, which has a semi-circular cross-section. In the locked state, the midpoint of the connecting element lies on an imaginary line that extends perpendicularly to the throwing direction, passes through the midpoint of the rotation axis of the first locking element, which is rotatably supported on the locking unit, and passes through the midpoint of the rotation axis of the second locking element, which is rotatably supported on the locking unit. When the locking state is released, a tensioning force applied to the second locking element by a tensioning element, particularly a form-locking and / or force-locking connection, acts on the second locking element such that the second locking element, together with the connecting element, rotates along the rotation axis of the second locking element in the throwing direction until a stop point is reached, and the connecting element is thrown out in the throwing direction therefrom. "The energy storage device is thrown out" should be understood in particular as the energy storage device moving to a position set for retrieving the energy storage device when the locking state is released.

[0010] Furthermore, the retaining device includes an operating unit (in particular, besides the key used to operate the lock) configured for operation of the locking unit by a user in a tool-free manner. The operating unit can be, in particular, a component of the locking unit and / or share common components with the locking unit. Advantageously, this enables particularly simple locking and / or unlocking of the locking unit and thus particularly simple assembly, disassembly, and / or replacement of the energy storage device. In particular, the locking unit is configured to be operated purely manually via the operating unit. The operating unit preferably includes at least one operating element. In particular, the operation of the locking unit is provided through a form-locking and / or force-locking connection between at least one operating element and at least a first or second locking element, for example via an operating element configured as a button or lever and / or via an operating element configured as a lock. In particular, at least one operating element is arranged directly on the locking unit, particularly on the base of the locking unit, and directly connected to at least the first or second locking element of the locking unit, wherein, in this case, operation can be performed directly on the locking unit by the user. Alternatively or additionally, the control unit can be considered to include multiple control elements and / or additional units and / or components connected to a first locking element and / or a second locking element. In particular, additional control elements can be arranged at any location on the frame and / or on components connected to the frame, especially in locations easily accessible to the user, such as on the handlebars connected to the frame. For example, the first control element can be directly arranged on at least one of the locking elements and connected to additional control elements, such as levers arranged on the handlebars of the frame, via a mechanically movable element for transmitting tension and / or pressure. Furthermore, alternatively or additionally, the control unit can be considered to be operated and / or run in an electromechanical, electronic, and / or magnetic manner and includes corresponding structural units and / or components, such as motors and transmissions and / or control and switching elements, as well as additional electrical and / or electronic components. In this context, it is also possible to consider displaying or outputting the locking or unlocking status of the locking unit to the operator via optical and / or acoustic signals, such as through a display or speaker of the operating unit connected to the operating unit and / or via a smartphone and / or other mobile device connected through an interface.

[0011] Furthermore, it is proposed that the operating unit has at least one safety mechanism to prevent unauthorized manipulation of the locking unit. This advantageously enables high security for the user. It advantageously largely prevents unauthorized access to the energy storage device. It advantageously enables high anti-theft protection of the energy storage device through this safety mechanism. The safety mechanism can be implemented, for example, by a lock. The lock can be connected to the operating element of the operating unit, particularly in a form-locking and / or force-locking manner, wherein the operating unit can be operated by the user by means of a key or, in the case of a combination lock, by setting a digital code. Alternatively or additionally, especially in configurations where the operating unit is operated and / or run in an electromechanical, electronic, and / or magnetic manner, the safety mechanism can be considered as an electrically and / or electronically controlled safety mechanism, and enables authorization for user manipulation of the operating unit via an operating unit connected to the operating unit and / or via an interface with a smartphone and / or other mobile device, for example, by entering a PIN code and / or pattern and / or fingerprint scanning and / or facial recognition.

[0012] Furthermore, it is proposed that the locking unit has at least one damping element for securing the energy storage device without gaps. This advantageously minimizes the free space of movement of the energy storage device within the holding device, determined by manufacturing and / or application, thereby preventing slippage or loosening of the energy storage device to the greatest extent possible, even under severe shaking. Preferably, at least one tensioning element of the tensioning unit is configured such that it also functions as a damping element. Alternatively or additionally, the locking unit can have one or more damping elements configured differently from and / or separately from the tensioning element of the tensioning unit. In particular, the damping element can be configured as a spring, especially a compression spring, advantageously a torsion spring, and preferably a helical torsion spring and / or a rotary spring. Alternatively or additionally, at least one damping element can also be configured as a pneumatic spring, for example, a gas compression spring. In addition, at least one damping element can also be constructed as a rubber element, particularly as a rubber damper and / or a cushioning pad element and / or a foam material element, particularly as a plate made of foam material, especially polyurethane foam material, arranged on the side of the locking unit, and / or as another particularly elastic element having particularly damping material properties suitable for gapless fixing, the other element being made of plastic and / or composite material and / or suitable other material.

[0013] Furthermore, it is proposed that the locking unit has at least one contact-connecting unit for activating the electrical contacts of the energy storage device. The contact-connecting unit preferably has at least one conductive contact element having at least one positive electrode and at least one negative electrode. The at least one contact element of the contact-connecting unit can be configured as a spring contact. Preferably, the at least one contact element of the contact-connecting unit is made of a conductive metal, particularly copper and / or a conductive metal alloy, especially a copper alloy. Preferably, the at least one contact element of the contact-connecting unit is configured to be form-locked and / or force-locked connected to the base of the locking unit. Preferably, at least one contact element is arranged laterally on the upper inner surface of the locking unit next to a first locking element in the throwing direction. Alternatively, at least one contact element can be arranged laterally on the lower inner surface of the locking unit next to a second locking element in the throwing direction. Furthermore, alternatively, it is conceivable that the first contact-connecting element and the first and / or second locking elements of the locking unit are constructed as a single piece, or are connected to the first and / or second locking elements in a form-locking and / or force-locking manner. It is conceivable that the energy storage device and the contact-connecting unit have mechanisms for preventing contact with incorrect polarity electrical contacts. In particular, the contact connection of the energy storage device and the locking via the locking unit can be coupled in such a way that incorrect contact connection can be excluded, and the energy storage device's contact connection exists only when the energy storage device is axially fixed in the locked state by means of the locking unit. This advantageously prevents damage to the energy storage device and / or the contact-connecting unit due to incorrect polarity. This advantageously enables particularly safe contact connection of the energy storage device in the locked state of the locking unit. In particular, electrical contact between the energy storage device and the energy dissipator, such as the electrical contact between an energy storage device constructed as a battery and an energy dissipator constructed as an auxiliary motor of an electric bicycle or electric scooter, can be achieved in a particularly simple and safe manner. Advantageously, reliable and trouble-free electrical contact engagement of the energy storage device can be achieved even in the locked state under severe shaking. Furthermore, it is advantageous to achieve a particularly compact and space-saving construction of the holding device. Alternatively, the contact engagement unit for electrical contact engagement can be disposed on a separate unit of the holding device, distinct from the locking unit, or directly on a frame element of the frame.

[0014] Furthermore, the present invention starts with a frame, particularly a bicycle frame, having a retaining device according to the invention and having at least one frame element. It proposes that the locking unit be directly integrated into the frame element. Preferably, the locking unit is integrated into the frame element configured as a bottom tube of a bicycle frame. In particular, the entire retaining device and energy storage unit can be directly integrated into the frame element, especially into the frame element configured as a bottom tube of a bicycle frame. This allows for a particularly space-saving arrangement of the locking unit. Preferably, the locking unit and / or its elements (especially the locking elements of the locking unit) are arranged in the frame element in a manner inaccessible from the outside. Advantageously, unauthorized access to the energy storage unit can be prevented to the greatest extent possible. Alternatively, it is conceivable that only components of the retaining device, especially the individual units and / or elements of the retaining device, especially the locking unit, are integrated into the frame element.

[0015] Here, the holding device according to the invention and / or the frame element according to the invention should not be limited to the applications and embodiments described above. In particular, in order to achieve the operating principle described herein, the holding device according to the invention and / or the frame element according to the invention can have a quantity different from the quantities of the various elements, components, and units mentioned herein. Furthermore, for the numerical ranges given in this disclosure, values ​​within the mentioned limits should also be considered as disclosed and freely usable. Attached Figure Description

[0016] Other advantages arise from the following description of the accompanying drawings. Embodiments of the invention are illustrated in the drawings. The drawings, description, and claims encompass a large number of combinations of features. Those skilled in the art will also find it desirable to individually observe the stated features and combine them into other meaningful combinations.

[0017] The attached diagram shows:

[0018] Figure 1 A schematic diagram of a bicycle having a bicycle frame according to the invention and a retaining device according to the invention is shown;

[0019] Figure 2 A schematic diagram of the locking unit of the retaining device according to the present invention is shown;

[0020] Figure 3 Another view of the schematic diagram of the locking unit is shown;

[0021] Figure 4a A schematic diagram of the carrier unit of the holding device according to the present invention is shown; and

[0022] Figure 4b A schematic diagram of a carrier unit with an energy storage unit is shown. Detailed Implementation

[0023] Figure 1 A bicycle 48 having a frame 14, particularly a bicycle frame, is shown. The frame 14 includes a retaining device 10 for releasably retaining an energy storage device 12, particularly a bicycle energy storage device, on the frame 14. The retaining device 10 includes at least one locking unit 16 configured to axially fix and releasably lock the energy storage device 12 in a locked state 18. The bicycle 48 includes an auxiliary motor 52 and an energy storage device 12. The bicycle 48 is configured as an electric bicycle. The energy storage device 12 is configured to supply electrical power to the auxiliary motor 52. The energy storage device 12 is configured as a battery. The frame 14 is configured as a bicycle frame 50. The bicycle frame 50 has a frame element 40. The frame element 40 is configured as a tube. The tubular frame element 40 has a circular cross-section; however, it can also alternatively have an elliptical, angular, or other shaped cross-section. The locking unit 16 of the retaining device 10 is directly integrated into the frame element 40 of the frame 14.

[0024] Figure 2 and Figure 3 The locking unit 16 of the retaining device 10 is shown in two different schematic views from different perspectives. The locking unit 16 is configured to axially fix the energy storage device within the retaining device 10 and to lock it in a releasable manner. The locking unit 16 has a first locking element 20 and a second locking element 22 corresponding to the first locking element 20. The first locking element 20 and the second locking element 22 are... Figure 2 and Figure 3The locking elements 20 and 22 are shown in two different positions. In the first position, the first locking element 20 and the second locking element 22 are shown by dashed lines, and the unlocked state of the locking unit 16 is shown. In the second position, the first locking element 20 and the second locking element 22 are shown by solid lines, and the locking unit 16 is shown in the locked state 18. In the locked state 18, the connecting element 46 is fixed in a groove of the second locking element 22, which has a semi-circular cross-section. The connecting element 46 is constructed as a stud with a circular cross-section; however, it can also have an elliptical, angular, or other shaped cross-section. In the present case, the connecting element 46 is arranged on the carrier unit 42 for receiving the energy storage device 12. However, alternatively, the connecting element 46 can also be a component of the energy storage device 12 and be arranged directly on the energy storage device 12. The first locking element 20 and the second locking element 22 are supported on the base of the locking unit 16 in a rotatable manner. The first locking element 20 and the second locking element 22 are interconnected by the tab element 32 of the locking unit 16. When the connecting element 46 is pushed into the locking unit 16 in the opposite direction of ejection 54, the connecting element 46 presses against the second locking element 22. The second locking element 22 performs a rotational movement. Since the first locking element 20 is connected to the second locking element 22 via the tab element 32, the first locking element 20 simultaneously performs a rotational movement in the opposite direction to the rotational direction of the second locking element 22 until a locked state 18 is reached. In the locked state 18, the first locking element 20 prevents further rotational movement of the second locking element 22. By the shape of the outer contour of the first locking element 20, the first locking element 20 constitutes a stop for the second locking element 22.

[0025] The locking unit 16 has an operating unit 30 for operation by a user without tools. The operating unit 30 has an operating element 56. The operating element 56 is configured as a lock 58 and is form-fitted to the first locking element 20. Alternatively, the operating element 56 can also be configured as a button, lever, or other type of operating element. The lock 58 forms a safety mechanism for the operating unit 30, protecting against unauthorized manipulation of the locking unit 16. The user can also operate the locking unit 16 without tools using a key (not shown).

[0026] Figure 3The tensioning unit 24 of the locking unit 16 is shown. The tensioning unit 24 is configured to pre-tighten the first locking element 20 and / or the second locking element 22 by means of tension force in the locked state 18. The tensioning unit 24 has a first tensioning element 26 and a second tensioning element 28. The first tensioning element 26 is constructed as a rotary spring and is fixedly connected to the first locking element 20. In the locked state 18, the first tensioning element 26 pre-tightens the first locking element 20 by means of tension force. The second tensioning element 28 is constructed as another rotary spring and is fixedly connected to the second locking element 20. In the locked state 18, the second tensioning element 28 pre-tightens the second locking element 22 by means of tension force. When the locked state 18 is released, the tensioning unit 24 ejects the energy storage device 12 in the ejection direction 24 by means of the tension force applied to the second locking element 22 by the second tensioning element 28. The locked state 18 is released by rotating the key in the operating element 56 of the operating unit 30, overcoming the tension force applied to the first locking element 20 by the first tensioning element 26, which is configured as a lock 58 and is form-fitted to the first locking element 20 of the locking unit 16. In an operating state of the locking unit different from the locked state 18, the second locking element 22 is not obstructed by the first locking element 20 and can rotate. By means of the tension force applied to the second locking element 22 by the second tensioning element 28, the second locking element 22 rotates to the position shown by the dashed line, and pushes the connecting element 46, and thus the energy storage device 12, out of the locking unit 16.

[0027] The locking unit 16 has a damping element 34. Preferably, the second tensioning element 28 is also configured as a damping element 34. In the locked state 18, the second tensioning element 28, configured as a damping element 34, applies a preload and is configured to secure the energy storage device without gaps. When the connecting element 46 is pushed into the locking unit 16, the damping function of the damping element 34 is achieved by the tension of the tensioning element 28 configured as a damping element 34. Alternatively or additionally, the damping element 34 can also be implemented as a separate spring constructed differently from the second tensioning element 28, which is configured as a rotary spring, or it can also be implemented as a rubber element, a cushioning pad element, or a plate made of foam material (e.g., polyurethane) or other material, for damping the energy storage device 12 and securing it without gaps.

[0028] The locking unit 16 has a contact connection unit 36. The contact connection unit 36 ​​has a contact connection element 38 and is configured to make electrical contacts for the energy storage unit 12. In the locked state 18, electrical contact is established between the energy storage unit 12 and the auxiliary motor 52 via the contact connection element 38 of the contact connection unit 36, and the energy storage unit 12 supplies energy to the auxiliary motor 52 (see [link]). Figure 1 ).

[0029] Figure 4a A carrier unit 42 for holding device 10 is shown. The carrier unit 42 is configured to receive and releasably hold energy storage device 12. The carrier unit 42 has a base plate with rounded corners. The base plate of the carrier unit 42 has a plurality of threaded holes configured for screwing a carrier element onto the energy storage device 12. The carrier unit 42 has a connecting element 46 and a carrier element 44. The connecting element 46 is constructed as a stud with a circular cross-section and is integrally connected to the front side of the base plate of the carrier unit 42 via two parallel connecting legs. The carrier element 44 is integrally constructed with the base plate of the carrier unit 42 and extends beyond the lower edge of the base plate from the front side in a direction perpendicular to the base plate of the carrier unit 42. Figure 4b The carrier unit 42 is shown together with the energy storage unit 12. The energy storage unit 12 is connected to the base plate of the carrier unit 42. The carrier element 44 forms a guide rail 60. The guide rail 60 is provided for guiding the energy storage unit 12 within the holding device 10. The energy storage unit 12 is arranged above the guide rail 60. In order to axially fix the energy storage unit 12 to and releasably lock it to the holding device 10, the connecting element 46 of the carrier unit 42 can be pushed into the locking unit 16 in the opposite direction of ejection 54 (see...). Figure 2 ).

Claims

1. A retaining device (10) for releasably holding a bicycle energy storage device to a bicycle frame, the retaining device having at least one locking unit (16) configured to axially fix and releasably lock the bicycle energy storage device in a locked state (18), wherein, The locking unit (16) has at least one first locking element (20) supported in a rotatable manner and at least one second locking element (22) supported in a rotatable manner corresponding to the first locking element (20), wherein the locking elements (20, 22) are coordinated with each other by appropriate arrangement and / or geometric shaping, the locking unit (16) has at least one tensioning unit (24) configured to pre-tighten at least the first locking element (20) and / or the second locking element (22) by means of tension force in the locked state (18), wherein the tensioning unit (24) is configured such that when the locked state (18) is released, the tensioning unit (24) throws the bicycle energy storage device by means of tension force, characterized in that the second locking element (22) has a groove for fixing the connecting element (46) of the bicycle energy storage device, wherein the groove is arranged between the rotation axes of the locking elements (20, 22).

2. The holding device (10) according to claim 1, characterized in that, The first locking element (20) and the second locking element (22) are supported on the locking unit (16) in a rotatable manner, wherein, in the locked state (18), the first locking element (20) prevents the second locking element (22) from rotating.

3. The holding device (10) according to claim 1 or 2, characterized in that, An operating unit (30) is provided, which is configured to be operated by a user in a tool-free manner.

4. The holding device (10) according to claim 3, characterized in that, The operating unit (30) has at least one safety mechanism for preventing unauthorized manipulation of the locking unit (16).

5. The holding device (10) according to any one of claims 1, 2 and 4, characterized in that, The locking unit (16) has at least one damping element (34) for securing the bicycle energy storage device in a gapless manner.

6. The holding device (10) according to any one of claims 1, 2 and 4, characterized in that, The locking unit (16) has at least one contact connection unit (36) for connecting the electrical contacts of the bicycle energy storage device.

7. A bicycle having a bicycle frame, the bicycle frame having a bicycle energy storage device and at least one retaining device (10) according to any one of claims 1 to 6 and having at least one frame element (40), characterized in that, The locking unit (16) is directly integrated into the frame element (40).

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