Coupling arrangement

Abstract

Coupling arrangement (1) for attaching a load carrier (300), for example a child seat, to a bicycle, the coupling arrangement (1) comprising a base (10) with a load carrier coupling section (12, 14), a first clamping portion (100) provided on the base (10), and a second clamping section (200), wherein the first clamping section (100) and the second clamping section (200) form between them a receiving area (A) for a fastening section (B) on the bicycle, wherein the second clamping portion (200) is coupled to the base (10) by means of a releasable locking arrangement (500, 600).

Description

TECHNICAL FIELDThe invention relates to a coupling arrangement for mounting a load carrier on a bicycle.BACKGROUNDCoupling arrangements are known in the prior art which make it possible to fasten accessories or an attachment part, for example a child seat, to a bicycle. The coupling arrangement serves as a mechanical interface between the bicycle frame or the bicycle handlebar and a child seat.SUMMARYIt is the object of the invention to provide an improved coupling arrangement for attaching an accessory to a bicycle. In particular, it is an object to specify a coupling arrangement which has improved user-friendliness.The object is achieved by the subject matter described in the independent claims. Advantageous further developments are the subject of the dependent claims.According to one embodiment, a coupling arrangement is provided which can be fastened to the bicycle in a particularly simple manner by a user. Simple handling results in particular from the fact that the coupling arrangement has particularly few loose parts which the user has to handle.According to an embodiment, a coupling arrangement for attaching a load carrier, for example a child seat, to a bicycle comprises a base having a load carrier coupling portion. The load carrier coupling section can be, for example, a receptacle for receiving a connecting section of a supporting structure of the load carrier. The coupling assembly further includes a first clamping portion provided on the base and a second clamping portion. The first clamping portion and the second clamping portion form between them a receiving region for a fastening portion on the bicycle.According to an embodiment, the second clamping portion is movable between an open position and a closed position. In the open position, the second clamping portion is positioned such that the coupling arrangement can be positioned on the fastening portion in the receiving region while receiving the fastening portion. In the closed position, the second clamping portion is positioned for clamping the fastening portion.According to one embodiment, the second clamping portion is configured such that it can be moved by at least one support portion, namely between the open position and the closed position.According to one embodiment, the support section is movable by means of an actuating member in a clamping movement direction relative to the first clamping section in order to reduce a distance between the support section and the first clamping section. As a result, a clamping force can be exerted on a fastening portion accommodated in the receiving region.According to one embodiment, the second clamping portion is pivotable relative to the base about a pivot axis between the open position and the closed position.According to one embodiment, the second clamping portion is pivotably held on the support portion. The pivot axis may extend inclined to a clamping movement direction of the support portion, for example perpendicular to the clamping movement direction of the support portion.According to one embodiment, the second clamping section is coupled to the support section in an articulated manner and indirectly via the actuating component to the base.According to one embodiment, the actuating member and / or the supporting portion form, with respect to the base, at least a part of an non-rotatable partner of a joint arrangement. The second clamping portion can form a rotatable partner of the joint arrangement.According to an embodiment, the support portion comprises a pivot bearing portion about which the second clamping portion can rotate. The pivot bearing portion may be a cylinder rod portion or a cylinder pin. The pivot bearing portion may be a part of the support portion or may form the support portion.According to one embodiment, the second clamping section has at least one receiving section in which the pivot bearing section is rotatably received. The receiving portion can be formed in a bushing-like manner. The receiving portion can be cylindrical. The receiving section can be formed by forming a sheet metal, for example by folding over a sheet metal edge in such a way that a type of loop is formed. The loop may be formed by welding, clinching or clinching a folded free end of the sheet to another portion of the sheet.According to one embodiment, the receiving portion has at least one through slot extending in the circumferential direction for passing through the actuating component.According to one embodiment, the receiving portion, for example each receiving portion, has two through slots extending in the circumferential direction for passing the actuating component through the receiving portion. The through slots can be provided on opposite sides of the receiving section, for example point-symmetrically with respect to a center point of the receiving section.According to one embodiment, the pivot bearing section has a threaded bore extending transversely to a direction of longitudinal extent of the pivot bearing section. The threaded bore extends through the pivot bearing portion and is configured for coupling to a threaded portion of the actuation member. The actuating member extends through a first through slot into the threaded bore and may extend through a second through slot on the opposite side of the threaded bore.According to one embodiment, the second clamping section has a clamping bracket. The receiving section is provided on the clamping bracket and can be part of the clamping bracket. The clamping bracket including the receiving section can be formed from one part, for example by forming a metal sheet.According to one embodiment, the second clamping component is detachably coupled to two actuating components via two support sections. The clamping member may be released from one operating member and moved relative to the other operating member between the open position and the closed position. The clamping bracket may have two of the receiving portions, a first receiving portion at a first end and a second receiving portion at a second end.According to one embodiment, the second clamping component has two clamping brackets which are arranged at a distance from one another. Each clamping bracket has a first end section with a first receiving section and a second end section with a second receiving section. Each receiving portion can be formed like the receiving portion described in the previous embodiments. According to one embodiment, the first receiving portions in the first end portions of the clamping brackets rotatably receive a first pivot bearing portion. According to one embodiment, the second receiving portions in the second end portions of the clamping brackets rotatably receive a second pivot bearing portion. The first receiving sections and the second receiving sections can each be connected to one another via a single pivot bearing section.According to one embodiment, the second clamping section at least partially has a cover made of a material which is formed softer and / or has a higher coefficient of friction compared to other components of the clamping section.According to an embodiment, the first clamping portion is a base-side clamping portion that delimits the receiving region in the direction of the base. According to an embodiment, at least the first clamping portion is movable relative to the base and the second clamping portion to clamp the attachment portion of the bicycle.According to an embodiment, the first clamping portion is movable relative to the base and the load carrier coupling portion between a retracted position and an extended position. A distance between the first clamping portion and the second clamping portion is smaller when the first clamping portion is in the extended position.According to one embodiment, the first clamping section has a clamping body guided linearly on the base. The clamping body can be operatively coupled to an actuating component.According to one embodiment, the actuating member is a rotating member.According to one embodiment, the rotary component can be operatively coupled to the clamping body and mounted on the base in such a way that a rotation of the rotary component is translated into a translatory movement of the clamping body.According to one embodiment, the rotating component can be operatively coupled to the support section and mounted on the base such that a rotation of the rotating component is translated into a translatory movement of the support section.According to one embodiment, the actuating component is a threaded bolt mounted on the base.According to one embodiment, the clamping body is in threaded engagement with the threaded bolt, such that a rotation of the threaded bolt leads to a movement of the clamping body in the axial direction of the threaded bolt.According to one embodiment, the clamping body is in threaded engagement with the support section or pivot bearing section, such that a rotation of the threaded bolt leads to a movement of the support section or pivot bearing section in the axial direction of the threaded bolt.According to one embodiment, the actuating component is designed to be actuatable by a tool. The actuating component has, for example, a mechanical interface which permits a force-transmitting coupling to a tool. The mechanical interface may be accessible from a front side of the base, for example, through an opening in a base housing.According to one embodiment, the load carrier coupling section has a cylindrical recess. The extension axis of the recess may extend perpendicular or inclined to an actuating component axis of the actuating component.According to one embodiment, the second clamping section is coupled to the base by means of a releasable latching arrangement.According to one embodiment, the latching arrangement has a base-side engagement region. The engagement region is configured to be mechanically locked to an engagement portion associated with the second clamping portion.According to one embodiment, the latching arrangement is configured such that an engagement between the engagement portion and the first engagement region takes place automatically.According to one embodiment, the latching arrangement is configured such that an engagement between the engagement portion and the first engagement region can be released by actuating a release portion.According to one embodiment, the latching arrangement has an engagement section associated with the second clamping section and a base-side first engagement region. The engagement portion and the engagement region are configured for releasable positive engagement.According to one embodiment, the latching arrangement is configured such that an engagement between the engagement portion and the first engagement region takes place automatically. The engagement can be released by actuating a release portion.According to an embodiment, the engagement region has a receiving portion for receiving the engagement portion and a latching portion. The latching portion is movably provided on the base between an engagement position and a disengagement position. In the engagement position, the latching portion protrudes into the receiving portion in such a way that it engages with a received engagement portion. In the disengagement position, the latching portion is moved back from the receiving portion in such a way that it is disengaged from a received engagement portion.According to one embodiment, the latching section is prestressed by means of an urging component in the direction of the engagement position.According to one embodiment, the second clamping section comprises a band. The band has the engagement portion at a first end portion. The engagement portion may have one or more projections, teeth or one or more recesses with which the latching portion can engage. The strap may be attached to the base at a second end portion.According to an embodiment, the engagement portion is provided movably between an engagement position and a disengagement position on the second clamping portion. In the engagement position, the engagement portion can engage with the first engagement region. In the disengagement position, the engagement portion is disengaged from the first engagement portion. The engaging portion is provided stationary on the base. The second clamping section can be designed as a clamping bracket. The coupling device may be configured for attachment to a handlebar of a bicycle.According to one embodiment, the engagement portion has an engagement projection, for example a hook-like projection. The engaging portion may have a recess for receiving the engaging protrusion.According to one embodiment, the engagement section is part of a pivotable first lever arm, for example a plate-like lever arm on the second clamping section.According to an embodiment, an operating portion for releasing the engagement between the engaging portion and the first engaging region is further provided. The operating portion is operatively coupled to the engaging portion. The first actuating portion can be part of the lever arm.According to one embodiment, the lever arm can have a clamping contact surface. The clamping contact surface serves as a contact surface of the second clamping portion with the fastening portion. The clamping contact surface is oriented such that when a clamping force is applied to the fastening portion via the clamping contact surface, the engagement portion is prevented from moving toward the disengagement position.According to an embodiment, the first clamping portion is a base-side clamping portion that delimits the receiving region in the direction of the base.According to an embodiment, at least the first clamping portion is movable relative to the base and the second clamping portion to clamp the attachment portion of the bicycle.According to an embodiment, the first clamping portion is movable relative to the base and the load carrier coupling portion between a retracted position and an extended position. A distance between the first clamping portion and the second clamping portion is smaller when the first clamping portion is in the extended position.According to one embodiment, the first clamping section has a clamping body which is guided linearly on the base and can be operatively coupled to an actuating component. The actuating component can be a rotary component which is operatively coupled to the clamping body and is mounted on the base in such a way that a rotation of the rotary component is translated into a translatory movement of the clamping body. The actuating component can be a threaded bolt mounted on the base. The clamping body can be in threaded engagement with the threaded bolt, such that a rotation of the threaded bolt leads to a movement of the clamping body in the axial direction of the threaded bolt.According to one embodiment, the actuating component is designed to be actuatable by a tool and has a mechanical interface which permits a force-transmitting coupling with a tool. The mechanical interface may be accessible from a front side of the base, for example, through an opening in a base housing.The base may include a receiving portion for receiving a child seat mounting portion.The base may include a support portion configured to be supported on the bicycle.According to one embodiment, the second clamping section is coupled to the base via at least one position-adjustable pivot bearing section. The pivot bearing portion may constitute the aforementioned support portion.According to one embodiment, the at least one pivot bearing section is operatively coupled to at least one actuating component in such a way that a movement of the actuating component leads to a change in position of the pivot bearing section.According to one embodiment, the at least one pivot bearing portion is detachably held on the at least one actuating component. The at least one pivot bearing section can be cylindrical.According to one embodiment, the actuating component is a threaded bolt mounted on the base, which is in threaded engagement with the pivot bearing portion.According to one embodiment, the at least one pivot bearing section has a cylinder rod section and / or is designed as a cylinder rod.According to one embodiment, the second clamping section has a receiving section for receiving the pivot bearing section. The receiving portion and the pivot bearing portion may be formed such that the pivot bearing portion can be rotated 360 degrees in the receiving portion when the pivot bearing portion is detached from the operating member. The pivot bearing portion may have an end portion accommodated in the accommodation portion. The end portion may be formed by an upper portion or a lower portion of the pivot bearing portion. The end portion may have a cylindrical shape, and the receiving portion may have a shape corresponding thereto to rotatably receive the end portion.According to one embodiment, the receiving section is of sleeve-like design and / or cylindrical design and / or is formed by forming a metal sheet, for example by folding over a metal sheet edge in such a way that a type of loop is formed, for example in such a way that a free end of the metal sheet is folded over and welded, inserted through, grooved or fastened by another joining method to a section of the metal sheet lying further inwards.According to one embodiment, the receiving portion has at least one through slot extending in the circumferential direction for passing through the actuating component.According to one embodiment, the receiving portion has two through slots extending in the circumferential direction for passing the actuating component through the receiving portion. The through slots are provided on opposite sides of the receiving section, for example in such a way that the through slots are provided point-symmetrically with respect to a center point of the receiving section.According to one embodiment, each through slot is formed such that the second clamping section is movable, in particular rotatable, with a single degree of freedom relative to an actuating component which is passed through. The actuating component can be cylindrical. The through slot may have a width substantially corresponding to a diameter of the operating member.According to one embodiment, the pivot bearing section has a threaded bore which extends transversely with respect to a direction of longitudinal extent of the pivot bearing section and extends through the pivot bearing section and is configured for coupling to a threaded section of the actuating component. The actuating member extends through a first through slot into the threaded bore and may extend through a second through slot on the opposite side of the threaded bore.According to one embodiment, the second clamping section has a clamping bracket. The receiving portion is provided on the clamping bracket. The receiving portion can be a part of the clamping bracket. The clamping bracket including the receiving section can be formed from one part, for example by forming a metal sheet.According to one embodiment, the second clamping component is detachably coupled to two actuating components via two pivot bearing sections, such that the clamping component can be released from one actuating component and can be moved between an open position and a closed position relative to the other actuating component. The clamping bracket has two of the receiving sections, a first receiving section and a second receiving section, for example a first receiving section at a first end of the clamping bracket and a second receiving section at a second end of the clamping bracket.According to one embodiment, the second clamping component has two clamping brackets which are arranged at a distance from one another. Each clamping bracket may have a first end portion with a first receiving portion and a second end portion with a second receiving portion. Each receiving portion may include one or more features as described in connection with other embodiments.According to one embodiment, the first receiving sections in the first end sections of the clamping brackets rotatably receive a first pivot bearing section and the second receiving sections in the second end sections of the clamping brackets rotatably receive a second pivot bearing section, such that the first receiving sections are connected to one another via the first pivot bearing section and the second receiving sections are connected to one another via the second pivot bearing section.According to one embodiment, the second clamping section at least partially has a cover made of a material which is formed softer and / or has a higher coefficient of friction compared to other components of the clamping section.According to an embodiment, the second clamping portion is provided movably relative to the base via a first operating member and a second operating member to clamp the fastening portion.According to an embodiment, the second clamping portion is coupled to the base via the first operating member and the second operating member such that the second clamping portion can be separated from the second operating member and can be rotated about the first operating member between a closed position and an open position.According to one embodiment, the second clamping section is detachably coupled to the first actuating component via a first pivot bearing section and detachably coupled to the second actuating component via a second pivot bearing section, so that the receiving region can be changed by adjusting the position of the pivot bearing sections via the actuating components in order to clamp the fastening section.According to one embodiment, the second clamping section has a clamping bracket. The clamping bracket has a first receiving section for at least partially receiving the first pivot bearing section. The clamping bracket has a second receiving section for at least partially receiving the second pivot bearing section. Each clamping bracket including the receiving portions can be formed from one part, for example by forming a metal sheet.According to one embodiment, the clamping bracket is rotatable in its entirety relative to the respective pivot bearing portion.According to one embodiment, the first receiving portion is configured such that the first pivot bearing portion can rotate in the first receiving portion, for example can rotate 360 degrees when the first pivot bearing portion is released from the first actuating component. The second receiving portion may be configured such that the second pivot bearing portion may rotate in the second receiving portion, for example, may rotate 360 degrees when the second pivot bearing portion is detached from the second operating member.According to one embodiment, the second clamping section has two of the clamping brackets, an upper clamping bracket and a lower clamping bracket.According to one embodiment, the first pivot bearing section is rotatably coupled at its upper end section to the upper clamping bracket, in particular rotatably received in the first receiving section of the upper clamping bracket, and is rotatably coupled at its lower end section to the lower clamping bracket, in particular rotatably received in the first receiving section of the lower clamping bracket.According to one embodiment, the second pivot bearing section is rotatably coupled at its upper end section to the upper clamping bracket, in particular rotatably received in the second receiving section of the upper clamping bracket, and is rotatably coupled at its lower end section to the lower clamping bracket, in particular rotatably received in the second receiving section of the lower clamping bracket.According to one embodiment, the end sections are formed cylindrically and the receiving sections provided for receiving the end sections on the clamping brackets are formed matchingly thereto in order to enable a relative rotation between a respective end section and the receiving section.According to one embodiment, at least one of the receiving sections is of sleeve-like design and / or of cylindrical design and / or is formed by forming a metal sheet, for example by folding over a metal sheet edge in such a way that a type of loop is formed, for example in such a way that a free end of the metal sheet is folded over and welded to the metal sheet, is inserted, is smoothened or is fastened using another joining method.According to one embodiment, at least one receiving section has at least one through slot extending in the circumferential direction for passing through the actuating component.According to one embodiment, at least one receiving portion, for example each receiving portion, has two through slots extending in the circumferential direction for guiding the actuating component through the receiving portion, in particular a front through slot and a rear through slot. According to one embodiment, through slots are provided on opposite sides of the receiving section, for example in such a way that the through slots are provided point-symmetrically with respect to a center point of the receiving section.According to one embodiment, each through slot is formed such that the second clamping section is movable, in particular rotatable, with one degree of freedom relative to an actuating component which is passed through. The through slot may have a width substantially corresponding to a diameter of the operating member.According to one embodiment, each pivot bearing section has a threaded bore which extends transversely with respect to a direction of longitudinal extent of the pivot bearing section and extends through the pivot bearing section and is configured for coupling to a threaded section of the actuating component. The actuating member may extend through a first through slot into the threaded bore and may extend through a second through slot on the opposite side of the threaded bore.BRIEF DESCRIPTION OF THE DRAWINGSThe invention will be described with reference to the accompanying figures. FIG. 1 shows a perspective illustration of a coupling arrangement mounted on a fastening portion of a bicycle, to which coupling arrangement a supporting structure of a load carrier is coupled. FIG. 2 shows a perspective illustration of the coupling arrangement in a closed state. FIG. 3 shows a perspective illustration of the coupling arrangement in an open state. FIG. 4 shows a perspective illustration of a clamping section of the coupling arrangement. FIG. 5 shows an exploded view of the coupling arrangement. FIG. 6 shows an exploded view of a further coupling arrangement. FIG. 7 is a sectional view of the coupling assembly shown in FIG. 6 in a state where the coupling assembly is fixed to a fixing portion. FIG. 8 shows a perspective illustration of a further coupling arrangement. FIG. 9 shows a sectional illustration of the coupling arrangement shown in FIG. 8 in a state in which a clamping component is decoupled. FIG. 10 shows a sectional illustration of the coupling arrangement shown in FIG. 8 in a state in which the clamping component is coupled. FIG. 11 shows a further sectional illustration of the coupling arrangement shown in FIG. 8.The figures are schematic and not to scale. Like reference numerals are used for like elements.DETAILED DESCRIPTIONEmbodiments and modifications of coupling arrangements 1 will be described with reference to the figures.Each coupling arrangement 1 comprises a base 10 with a load carrier coupling portion 12, 14, 15 configured to attach a load carrier 300 to the coupling arrangement. The load carrier coupling section 12, 14 can have, for example, a receptacle for receiving a connecting section 302, 304 of a supporting structure 301 of the load carrier 300, as shown in FIGS. 1, 2, 3, 5, 6 or 7. The receptacle 12, 14 may have an opening or recess for receiving the connection portion 302, 304. The connecting portion 302, 304 may be a rod-shaped or rod-shaped end of one of the support structures 301 which can be inserted into the opening and locked therein. The receptacle 302, 304 can be configured such that a connecting section 302, 304 inserted therein is automatically locked in the receptacle 302, 304 and can be removed from the receptacle 302, 304 only by actuating an actuating component, which is not shown in detail. In the arrangement shown, two receptacles 302, 304 are provided. Alternatively, the load carrier coupling section 15 can be designed in the manner of a projection or have a projection 17, onto which a child seat or another load carrier can be plugged (see, for example, FIG. 8 ). Such an arrangement can be selected, for example, if the coupling arrangement 1 is configured for fastening to a bicycle handlebar.Each coupling assembly 1 includes a first clamping portion 100 provided on the base 10 and a second clamping portion 200. The first clamping portion 100 and the second clamping portion 200 form between them a receiving region A for a fastening portion B on the bicycle. The attachment portion B may be, for example, a frame portion of the bicycle as in the embodiments in FIGS. 1 to 7, or may be a handlebar portion as in the embodiments in FIGS. 8 to 11.The first clamping section 100 has a clamping body 102 which can be formed at least in regions such that its surface simulates an outer contour of the fastening section. For example, the fastening portion B can be round and the surface can be correspondingly curved or V-shaped. In all embodiments, the distance between the first clamping portion 100 and the second clamping portion 200 can be changed by actuating one actuating component 104 or a plurality of actuating components 104 in order to reduce the receiving region A and to bring about clamping to the fastening portion B. Depending on which clamping section is provided to be movable relative to the base 10, in order to reduce the receiving region A, for example, the second clamping section 200 can be pulled in the direction of the base or the first clamping section 100 can be moved from a retracted position into an extended position in which it is positioned closer to the second clamping section 200.The operating member 104 may be a force transmitting member. The operating member 104 may be a rotating member, for example, a threaded bolt, supported on the base. In some embodiments, the actuating member 104 is in threaded engagement with the movable clamping portion 200. The actuating component can be designed to be actuatable by a tool. The actuating component 104 can have a mechanical interface 105, such as a hexagon socket. In some embodiments, the actuator 104 is accessible via an opening 18 in a base housing 16, or may be inserted into or removed from the base 10 via such an opening 18.In some embodiments, the second clamping section 200 is detachable from the base at least on one side for mounting purposes (see, for example, the embodiments in FIGS. 1 to 7 ). In some embodiments, the second clamping portion 200 is fully detachable from the base for assembly purposes (see, for example, FIG. 9 ). In some embodiments, the second clamping portion 200 may be coupled to the base at least on one side (see, for example, FIGS. 6 and 7 ) or on both sides (see, for example, FIGS. 8 to 11 ) by means of a snap-in connection. In some embodiments (see, for example, FIGS. 1 to 7 ), the clamping section can be decoupled from the base on one side and moved, for example rotated, around the other section coupled to the base. In some embodiments, the first clamping portion 100 is provided on the base side, i.e. delimits the receiving region A on the side of the base 10. In some embodiments, the first clamping portion 100 or a clamping body 102 of the first clamping portion 100 can be arranged movably relative to the base in order to generate a clamping force (see, for example, FIGS. 7 and 9 ).An embodiment will be described below with reference to Figs. 1 to 5. The coupling arrangement 1 has a base 10 with a load carrier coupling section 12, 14. The first clamping portion 100 is provided stationary on the base 10.The second clamping portion 200 in the embodiment of FIGS. 1 to 5 is a portion movable relative to the base 10 along a clamping movement direction to enlarge or reduce the accommodating area A. By moving the second clamping section 200 in the direction of the first clamping section 100 or in the direction of the base 10, a fastening section B arranged in the receiving region A can be clamped. When the second clamping section 200 is moved in the opposite direction, the clamping force can be reduced or the receiving region A can be enlarged such that clamping no longer takes place.The second clamping portion 200 may be configured to be movable about a support portion 20, 22 between an open position and a closed position. In the open position (illustrated in FIG. 3 ), the second clamping portion 200 is positioned such that the coupling arrangement 1 can be positioned on the fastening portion B in the receiving region A while receiving the fastening portion B. In the closed position (illustrated in FIG. 2 ), the second clamping section 200 is positioned for clamping the fastening section B, for example held in such a way that a fastening section B positioned in the receiving region A can no longer be removed from the receiving region.In the embodiment shown, the second clamping section 200 has four support sections 20, 22. More specifically, the second clamping portion 200 includes two left support portions 20 and two right support portions 22. The left support portions 20 and the right support portions 22 are provided on the second clamping portion 200 such that an upper left support portion 20 and an upper right support portion 22 are at approximately the same height, and such that a lower left support portion 20 and a lower right support portion 22 are at approximately the same height. Further, the left support portions 20 and the right support portions 22 are configured to define a left pivot axis S 1 and a right pivot axis S 2 about which the second clamping portion 200 can be pivoted.The second clamping portion 200 may be pivotally supported on each support portion 20, 22. This makes it possible to pivot the second clamping portion 200 relative to the base 10 about a pivot axis S 1, S 2 between the open position and the closed position. The pivot axis S 1, S 2 may extend obliquely or obliquely to a clamping movement direction of the support portion 20, 22. The pivot axis S 1, S 2 may extend perpendicular to the clamping movement direction of the support portion 20, 22. In the embodiment shown, the pivot axis S 1, S 2 extends perpendicular to the clamping movement direction of the support portion 20, 22.The second clamping portion 200 is coupled to the base 10 via a plurality of operating members 104. The actuating member 104 and / or the support portion 20, 22 can form at least part of an non-rotatable partner of a joint arrangement G 1, G 2 with respect to the base 10. The second clamping section 200 can form a rotatable partner of the joint arrangement G 1, G 2.According to an embodiment, the support section 20, 22 comprises a pivot bearing section 202 about which the second clamping section 200 can rotate. According to one embodiment, the support section 20, 22 is formed by a pivot bearing section 202 or is formed as part of the pivot bearing section. The pivot support portion 202 may include a cylinder rod portion 204 or a cylinder pin. In the illustrated embodiment, the left support portions 20 and the right support portions 22 are provided on each of a cylinder rod.In one embodiment, the second clamping portion 200 has a receiving portion 206 in which the pivot bearing portion 202 is rotatably received. The receiving section 206 can be of sleeve-like and / or cylindrical design, as can be easily seen in FIG. 5, for example. The receiving section 206 can be formed by forming a metal sheet, for example by folding over a metal sheet edge in such a way that a type of loop is formed.According to a further embodiment, the receiving portion 206 has at least one through slot 221, 222 extending in the circumferential direction for passing through the actuating component 104.According to one embodiment, the receiving portion 206 has two through slots 221, 222 extending in the circumferential direction for passing the actuating component 104 through the receiving portion 206. The through slots 221, 222 are provided on opposite sides of the receiving portion 206, for example in such a way that the through slots 221, 222 are provided point-symmetrically with respect to a center point of the receiving portion 206.In one embodiment, the pivot bearing section 202 has a threaded bore 207 which extends transversely with respect to a direction of longitudinal extent of the pivot bearing section 202 and extends through the pivot bearing section 202 and is configured for coupling to a threaded section 107 of the actuating component 104. The actuator member 104 extends through a first through slot 221 into the threaded bore 207 and may extend through a second through slot 222 on the opposite side of the threaded bore 207. A rotation of the actuating element 104 about its own axis thus leads to a change in position of the pivot bearing section 202 relative to the actuating element.According to a further embodiment, the second clamping section 200 has a clamping bracket 205. The receiving portion 206 is provided on the clamping bracket 205 and can be part of the clamping bracket 205. The clamping bracket 205 including the receiving portion 206 can be formed from one part, for example by forming a metal sheet.According to one embodiment, the second clamping component 200 is detachably coupled to two actuating components 104 via two support sections 20, 22. According to one embodiment, the second clamping component 200 is detachably coupled to two actuating components 104 via two pivot bearing sections 202 a, 202 b. This makes it possible to release the second clamping component 200 from one actuating component 104 and move it between the open position and the closed position relative to the other actuating component 104. Each pivot bearing portion 202 a, 202 bis formed by a cylinder rod portion 204 or a cylinder rod.In FIG. 3, a state is shown in which two right actuating members 104 bare released from the right support portions 22 and the right pivot bearing portion 202 b, respectively, and the second clamping member 200 is moved to the open position about the pivot axis S 1 about the left support portions 20 held on the left actuating members 104 a. The second clamping member 200 is thus brought into a state of being pivotally supported on the base 10 at one side via the left operating members 104 a. The clamping bracket 205 has two of the receiving sections 206, a first receiving section 206 aat a first end and a second receiving section 206 bat a second end. The first receiving portion 206 amay be a left receiving portion. The second receiving portion 206 bmay be a right receiving portion. Each receiving portion 206 a, 206 bis received by an end portion 202 a 1, 202 a 2, 202 b 1, 202 b 2 of the pivot bearing portions 206 a, 206 b. The end portions may form the support portions.In one embodiment, the second clamping component 200 has two clamping brackets 205 which are arranged at a distance from one another, more precisely an upper clamping bracket 205 aand a lower clamping bracket 205 b. Each clamping bracket 205 has a first end portion with a first receiving portion 206 aand a second end portion with a second receiving portion 206 b. The first receiving portions 206 ain the first end portions of the brackets 205 a, 205 bmount rotatably a first pivot bearing portion 202 a, and the second receiving portions 206 bin the second end portions of the brackets 205 a, 205 bmount rotatably a second pivot bearing portion 202 b. More specifically, in the embodiment shown, an upper end portion 202 a 1 of the first pivot support portion 202 ais received in an upper first receiving portion 206 aof the upper clamping bracket 205 a, and a lower end portion 202 a 2 of the first pivot support portion 202 ais received in a lower first receiving portion 206 aof the lower clamping bracket 205 b. An upper end portion 202 b 1 of the second pivot bearing portion 202 bis accommodated in an upper second accommodation portion 206 bof the upper clamping bracket 205 a, and a lower end portion 202 b 2 of the second pivot bearing portion 202 bis accommodated in a lower second accommodation portion 206 bof the lower clamping bracket 205 b. As a result, the first receiving sections 206 aand the second receiving sections 206 bare each connected to one another or coupled to one another via a single pivot bearing section 202 a, 202 b.With the above configuration, it is possible to open the accommodating portion A by removing the two right (second) operating members 104 bor the two left (first) operating members 104 afrom the threaded holes 207, thereby decoupling the second clamping member 200 from the base at one side, as shown in FIG. 3. The clamping member 200 can then be rotated about its end coupled to the base about the pivot axis into the open position, which is made possible, inter alia, by the through slots 221, 222 provided in the receiving portion 206. The through slots 221, 222 can be designed in such a way that they allow a movement of a respective clamping bracket 205 a, 205 bwith a single degree of freedom (for example a pure rotational movement) relative to the pivot bearing section 202 a, 202 btained on the actuating components. Overall, the described construction holds the second clamping component 200 rotatably about a pivot axis (for example defined by a pivot bearing section 202 a, 202 b) and displaceably along the actuating component 104 via a type of hinge construction. In other words, the second clamping section 200 is coupled to the base 10 at least on one side, preferably on both sides, via a type of openable joint, which in the closed state can be adjusted in position via the actuating components in order to generate a clamping force. In this way, the second clamping member may always remain on the base 10 and may not be completely detached from the base 10 to mount the coupling assembly 1 to the fastening portion B.According to a further embodiment, the second clamping section 200 at least partially comprises a cover 400 made of a material which is formed softer and / or has a higher coefficient of friction compared to other components of the clamping section 200. The cover 400 may be configured to cover a clamp 205. With such a cover 400, the retention of the coupling arrangement 1 on the fastening portion B can be improved and damage to the fastening portion B can be prevented. In addition, the cover can be designed such that it has through slots 402 corresponding to the through slots and / or that the cover 400 closes the receiving section 206 on one side, in particular has a cover region 404 which, when the cover 400 is mounted, closes the receiving section 206 from above or from below.According to a further embodiment, the base-side (first) clamping section 100 for generating a clamping force is provided movably on the base 10. Embodiments of such arrangements can be found in FIGS. 6 to 11. The first clamping portion 100 is the base-side clamping portion that delimits the accommodation area A toward the base 10. The first clamping portion 100 is movable relative to the base 10 and the second clamping portion 200 to clamp the attachment portion B of the bicycle.In one embodiment, the first clamping portion 100 is movable relative to the base 10 and the load carrier coupling portion 12, 14 between a retracted position and an extended position. A distance between the first clamping portion 100 and the second clamping portion 200 is smaller when the first clamping portion 100 is in the extended position.According to a further embodiment, the first clamping section 100 has a clamping body 102 which is guided linearly on the base 10 and is operatively coupled to an actuating component 104.According to one embodiment, the actuating component 104 is a rotary component which is operatively coupled to the clamping body 102 and is mounted on the base 10 in such a way that a rotation of the rotary component 104 is translated into a translatory movement of the clamping body 102.In one embodiment, the actuating member 104 is a threaded bolt 106 supported on the base 10, and the clamping body 102 is in threaded engagement with the threaded bolt 106. A rotation of the threaded bolt 106 leads to a movement of the clamping body 102 in the axial direction of the threaded bolt 106.According to a further embodiment, the actuating component 104 is designed to be actuatable by a tool and has, for example, a mechanical interface 105 which permits a force-transmitting coupling with a tool. The mechanical interface 105 may be accessible from a front side of the base 10, for example, through an opening 18 in a base housing 16.According to one embodiment, the load carrier coupling section 12, 14 has a cylindrical recess, the extension axis C 1, C 2 of which can extend perpendicular to an actuating component axis D of the actuating component 104.According to a further embodiment, a coupling arrangement for attaching a load carrier, for example a child seat, to a bicycle is provided, wherein the second clamping portion 200 is coupled to the base 10 by means of a releasable latching arrangement 500, 600. Such a construction can be seen in FIGS. 7 and 9 and 10.In one embodiment, the latching arrangement 500, 600 has an engagement section 502, 602 associated with the second clamping section 200 and a base-side engagement region 504, 604. The engagement portion 502, 602 and the engagement region 504, 604 are configured for releasable positive engagement. This enables a secure and detachable connection between the second clamping portion 200 and the base 10.According to a further embodiment, the latching arrangement 500, 600 is configured such that an engagement between the engagement portion 502, 602 and the engagement region 504, 604 takes place automatically. The engagement can be released by actuating a release portion 506, 606. This facilitates handling and enables quick and simple assembly and disassembly of the second clamping section 200.According to an embodiment, the engagement region 504 comprises a receiving portion 508 for receiving the engagement portion 502 and a latching portion 510. The latching portion 510 is provided on the base 10 movably between an engagement position and a disengagement position, for example, rotatably provided about a rotation axis A 1. In the engaged position, the latching portion 510 protrudes into the receiving portion 508 such that it engages with a received engaging portion 502. In the disengagement position, the latching portion 510 is moved back from the receiving portion 508 so as to be disengaged from a received engaging portion 502, so that the engaging portion 502 can be removed from the receiving portion 508.In one embodiment, the latching portion 510 is biased toward the engaged position by an urging member 512. The urging member 512 causes the latching portion 510 to be automatically urged to the engaged position, for example, once the engaging portion 502 is inserted into the receiving portion 508. This ensures that the engagement is effected reliably and disengagement of the latching portion 510 is avoided.According to a further embodiment, the second clamping section 200 has a band 700 which has the engagement section 502 at a first end section 702. The engagement portion 502 may include one or more protrusions, teeth 509, or one or more recesses with which the latch portion 510 may engage. The band 700 may be fixed to the base 10 at a second end portion 704 via a support portion 30. The support portion 30 may have an opening in which a fastening member such as a screw is received. This allows a flexible and secure connection of the second clamping portion 200 to the base 10. Alternatively to the embodiment shown in FIG. 7, the support portion 30 may be movable relative to the base 10 along a clamping movement direction to enlarge or reduce the accommodating area A. In other words, the attached end of the strap 700 may be movable to effect clamping.According to an embodiment, as illustrated in FIGS. 9 and 10, the engagement portion 602 is movably provided between an engagement position and a disengagement position on the second clamping portion 200. In the engagement position, the engagement portion 602 may engage the engagement portion 604. In the disengagement position, the engagement portion 602 is disengaged from the engagement portion 604. The engaging portion 604 is provided stationary on the base 10. This enables a simple and reliable releasable fastening of the second clamping portion 200 to the base 10.In an embodiment, the engagement portion 602 comprises an engagement protrusion 603, for example a hook-like protrusion. The engaging portion 604 has a recess 605 for receiving the engaging protrusion 603. This ensures that the engagement portion 602 can reliably engage with the engagement portion 604.According to a further embodiment, the engagement portion 602 is part of a pivotable first lever arm 601, for example a plate-like lever arm. This enables easy and reliable movement of the engagement portion 602 between the engagement position and the disengagement position. The lever arm 601 may be biased with an urging member 612 such that the engagement protrusion 603 is urged toward the engagement position.According to an embodiment, an operating or releasing portion 606 is further provided for releasing the engagement between the engaging portion and the engaging region. The operating portion 606 is operatively coupled to the engaging portion. The actuating portion may be part of the lever arm 601. This facilitates handling and enables simple unlocking of the second clamping section 200.In one embodiment, the lever arm 601 has a clamping contact surface 609, which serves as a contact surface of the second clamping section 200 with the fastening section B. The clamping contact surface 609 is oriented so that when a clamping force is applied to the fastening portion B via the clamping contact surface 609, the engaging portion 602 is prevented from moving toward the disengagement position. This ensures that the engagement is reliably maintained even under load.According to a further embodiment, the first clamping portion 100 is a base-side clamping portion which delimits the receiving region A in the direction of the base 10. At least the first clamping portion 100 is movable relative to the base and the second clamping portion 200 to clamp the attachment portion B of the bicycle.According to one embodiment, the first clamping portion 100 is movable relative to the base 10 and the load carrier coupling portion 12, 14 between a retracted position and an extended position. A distance between the first clamping portion 100 and the second clamping portion 200 is smaller when the first clamping portion 100 is in the extended position. This enables a simple and reliable setting of the clamping force.In one embodiment, the first clamping section 100 has a clamping body 102 which is guided linearly on the base 10 and is operatively coupled to an actuating component 104. The actuating component 104 can be a rotary component which is operatively coupled to the clamping body 102 and is mounted on the base 10 such that a rotation of the rotary component is translated into a translatory movement of the clamping body 102. The actuating member 104 may be a threaded bolt 106 supported on the base, and the clamping body 102 may be in threaded engagement with the threaded bolt 106. A rotation of the threaded bolt 106 leads to a movement of the clamping body 102 in the axial direction of the threaded bolt 106. The actuating component 104 can be designed to be actuatable by a tool and can have, for example, a mechanical interface 105 which allows a force-transmitting coupling with a tool. The mechanical interface 105 may be accessible from a front of the base 10, for example, through an opening 18 in a base housing 16.REFERENCE NUMERALS1 Coupling arrangement 10 Base 12 Load carrier coupling portion 14 Load carrier coupling portion 15 Load carrier coupling portion 16 Base housing 17 Projection 18 Opening 20 Left support portion 22 Right support portion 30 Support portion / fixed end 100 First clamping portion 102 Clamping body 104 Operating member 104 aFirst operating member 104 bSecond fixing member 105 Mechanical interface 106 Threaded bolt 107 Threaded portion 200 Second clamping portion 202 Pivot bearing portion 202 aFirst pivot bearing portion 202 a 1 Oberer end portion 202 a 2Low end portion 202 b 1 Oberer end portion 202 b 2Low end portion 204 Cylinder rod portion 205 Clamping bracket 205 a Oberer clamping bracket 205 bLow clamping bracket 206 Receiving portion 206 aFirst receiving portion 206 bSecond receiving portion 207 Threaded bore 221 Through slot 222 Through slot 300 Load carrier 301 Support structure 302 Connecting portion 304 Connecting portion 400 Cover 402 Through slot 404 Cover region 500 Latch arrangement 502 Engagement portion 503 Engagement projection 504 Engagement region 506 Release portion 508 Receiving portion 509 Tooth 510 Latch portion 512 Urging member 600 Latch arrangement 601 Lever arm 602 Engagement portion 603 Engagement projection 604 Engagement region 605 Recess 606 Release portion / operation portion 609 Clamping contact surface 612 Urging member 700 Band 702 First end portion 704 Second end portion A Receiving region A 1 Rotation axis B Fixing portion C 1 Extension axis C 2 Extension axis D Operation member axis G 1 Joint arrangement G 2 Joint arrangement S 1 Pivot axis S 2 Pivot axis

Claims

Coupling arrangement (1) for attaching a load carrier (300), for example a child seat, to a bicycle, wherein the coupling arrangement (1) comprises a base (10) having a load carrier coupling portion (12, 14), a first clamping portion (100) provided on the base (10), and a second clamping portion (200), wherein the first clamping portion (100) and the second clamping portion (200) form between them a receiving region (A) for a fastening portion (B) on the bicycle, wherein the second clamping portion (200) is coupled to the base (10) by means of a releasable latching arrangement (500, 600).The coupling arrangement (1) according to claim 1, wherein the latching arrangement (500, 600) comprises an engagement portion (502, 602) associated with the second clamping portion (200) and a base-side engagement region (504, 604), wherein the engagement portion (502, 602) and the engagement region (504, 604) are configured for a releasable form-fit engagement.Coupling arrangement (1) according to claim 2, wherein the latching arrangement (500, 600) is configured such that an engagement between the engagement portion (502, 602) and the engagement region (504, 604) takes place automatically and can be released by actuating a release portion (506, 606).The coupling assembly (1) according to claim 3, wherein the engaging portion (504) includes a receiving portion (508) for receiving the engaging portion (502), and a latching portion (510) movably provided on the base (10) between an engaging position where it protrudes into the receiving portion (508) to be engaged with a received engaging portion (502) and a disengaging position where it is moved back from the receiving portion (508) to be disengaged from a received engaging portion (502).The coupling arrangement (1) according to claim 4, wherein the latching portion (510) is biased by means of an urging member (512) towards the engagement position.The coupling arrangement (1) according to claim 5, wherein the second clamping portion (200) comprises a band (700) comprising the engaging portion (502) at a first end portion (702), wherein the engaging portion (502) may comprise one or more protrusions, teeth or one or more recesses with which the latching portion (510) may engage, wherein the band (700) may be fixed to the base at a second end portion (704).The coupling assembly (1) according to claim 2 or 3, wherein the engaging portion (602) is provided on the second clamping portion (200) movably between an engaging position in which the engaging portion (602) can engage with the engaging portion (604) and a disengaging position in which the engaging portion (602) is disengaged from the engaging portion (604), and the engaging portion (604) is provided on the base (10) in a stationary manner.The coupling arrangement (1) according to claim 7, wherein the engagement portion (602) comprises an engagement protrusion (603), for example a hook-like protrusion, and the engagement region (604) comprises a recess (605) for receiving the engagement protrusion (603).Coupling arrangement (1) according to claim 8, wherein the engagement portion (602) is part of a pivotable first lever arm (601), for example a plate-like lever arm.The coupling arrangement (1) according to claim 9, wherein an actuating portion (606) for releasing the engagement between the engaging portion (602) and the engaging region (604) is further provided, wherein the actuating portion (606) is operatively coupled to the engaging portion (602), wherein the actuating portion (606) can be part of the lever arm (601).The coupling arrangement (1) according to claim 10, wherein the lever arm (601) may comprise a clamping contact surface (609) serving as a contact surface of the second clamping portion (200) with the fastening portion (B), wherein the clamping contact surface (609) is oriented such that when a clamping force is applied to the fastening portion (B) via the clamping contact surface (609), the engagement portion (602) is prevented from moving towards the disengagement position.The coupling assembly (1) according to any one of claims 1 to 11, wherein the first clamping portion (100) is a base-side clamping portion delimiting the receiving area (A) towards the base (10), wherein at least the first clamping portion (100) is movable relative to the base and to the second clamping portion (200) to clamp the fastening portion (B) of the bicycle.The coupling assembly (1) of claim 12, wherein the first clamping portion (100) is movable relative to the base (10) and the load carrier coupling portion (12, 14) between a retracted position and an extended position, wherein a distance between the first clamping portion (100) and the second clamping portion (200) is smaller when the first clamping portion (100) is in the extended position.The coupling arrangement (1) according to claim 13, wherein the first clamping portion (100) has a clamping body (102) guided linearly on the base (10) and operatively coupled to an actuating component (104), wherein the actuating component (104) can be a rotating component which is operatively coupled to the clamping body (102) and is mounted on the base (10) such that a rotation of the rotating component is translated into a translatory movement of the clamping body (102), wherein the actuating component (104) can be a threaded bolt (106) mounted on the base and the clamping body (102) can be in threaded engagement with the threaded bolt (106) such that a rotation of the threaded bolt (106) leads to a movement of the clamping body (102) in the axial direction of the threaded bolt (106), wherein the actuating component (104) can be designed to be actuatable by a tool, For example, the mechanical interface (105) may include a mechanical interface allowing force transmitting coupling to a tool, and / or wherein the mechanical interface (105) may be accessible from a front side of the base (10), for example, through an opening (18) in a base housing (16).Coupling arrangement (1) for attaching a load carrier, for example a child seat, to a bicycle, wherein the coupling arrangement (1) comprises a base (10) with a load carrier coupling portion (12, 14; 15), a first clamping portion (100) provided on the base (10), and a second clamping portion (200), wherein the first clamping portion (100) and the second clamping portion (200) form between them a receiving region (A) for a fastening portion (B) on the bicycle, wherein the first clamping portion (100) is a base-side clamping portion which delimits the receiving region (A) in the direction of the base (10), wherein at least the first clamping portion (100) is movable relative to the base and to the second clamping portion (200) in order to clamp the fastening portion (B) of the bicycle.The coupling assembly (1) of claim 15, wherein the first clamping portion (100) is movable relative to the base (10) and the load carrier coupling portion (12, 14) between a retracted position and an extended position, wherein a distance between the first clamping portion (100) and the second clamping portion (200) is smaller when the first clamping portion (100) is in the extended position.Coupling arrangement (1) according to claim 16, wherein the first clamping section (100) has a clamping body (102) which is guided linearly on the base (10) and is operatively coupled to at least one actuating component (104), for example two actuating components (104).The coupling arrangement (1) according to claim 17, wherein the actuating member (104) is a rotating member operatively coupled to the clamping body (102) and supported on the base (10) such that rotation of the rotating member is translated into translation movement of the clamping body (102).The coupling arrangement (1) according to claim 18, wherein the actuating component (104) is a threaded bolt (106) supported on the base and the clamping body (102) is in threaded engagement with the threaded bolt (106) such that a rotation of the threaded bolt (106) results in a movement of the clamping body (102) in the axial direction of the threaded bolt (106).Coupling arrangement (1) according to any one of claims 17 to 19, wherein the actuating member (104) is configured to be actuatable by a tool, for example comprises a mechanical interface (105) allowing a force-transmitting coupling with a tool, wherein the mechanical interface (105) can be accessible from a front side of the base (10), for example through an opening (18) in a base housing (16).Coupling arrangement (1) according to one of Claims 17 to 20, wherein the load carrier coupling section (12, 14) has a cylindrical recess, the axis of extent (C1, C2) of which can extend perpendicularly to an actuating component axis (D) of the actuating component (104).The coupling arrangement (1) according to any one of claims 15 to 21, wherein the second clamping portion (200) is coupled to the base (10) by means of a releasable latch arrangement (500, 600).The coupling arrangement (1) according to claim 22, wherein the latching arrangement (500, 600) comprises a base-side engagement region (502, 602) configured to be mechanically locked with an engagement portion (504, 604) associated with the second clamping portion (200).The coupling arrangement (1) according to claim 23, wherein the latching arrangement (500, 600) is configured such that an engagement between the engagement portion (504, 604) and the engagement region (502, 602) occurs automatically.The coupling arrangement (1) according to claim 23 or 24, wherein the latching arrangement (500, 600) is configured such that an engagement between the engagement portion (504, 604) and the engagement region (502, 602) can be released by actuating a release portion (506, 606).Coupling arrangement (1) for attaching a load carrier, for example a child seat, to a bicycle, wherein the coupling arrangement (1) comprises a base (10) having a load carrier coupling portion (12, 14), for example a receptacle for receiving a connecting portion (302, 304) of a supporting structure (300) of the load carrier, a first clamping portion (100) provided on the base (10), and a second clamping portion (200), wherein the first clamping portion (100) and the second clamping portion (200) form between them a receiving region (A) for a fastening portion (B) on the bicycle, wherein the second clamping portion (200) is coupled to the base (10) via at least one position-adjustable pivot bearing portion (202).The coupling arrangement (1) according to claim 26, wherein the at least one pivot bearing portion (202) is operatively coupled to at least one actuating component (104) such that a movement of the actuating component (104) results in a change in position of the pivot bearing portion (202).The coupling arrangement (1) according to claim 27, wherein the at least one pivot bearing portion (202) is detachably held on the at least one actuating component (104), wherein the at least one pivot bearing portion (202) can be formed cylindrically.The coupling assembly (1) of claim 28, wherein the actuating member (104) is a threaded bolt (106) supported on the base (10) and threadedly engaging the pivot bearing portion (202).Coupling arrangement (1) according to one of Claims 26 to 29, wherein the at least one pivot bearing portion (202) has a cylinder rod portion (204) and / or is designed as a cylinder rod.The coupling arrangement (1) according to any one of claims 26 to 30, wherein the second clamping portion (200) comprises a receiving portion (206, 206a, 206b) for receiving the pivot bearing portion (202), wherein the receiving portion (206, 206a, 206b) and the pivot bearing portion (202) can be formed such that the pivot bearing portion (202) can be rotated in the receiving portion (206, 206a, 206b) by 360 degrees when the pivot bearing portion (202) is detached from the actuating member (104), wherein the pivot bearing portion (202, 202a, 202b) comprises an end portion (202a1, 202a2, 202b1, 202b2) received in the receiving portion (206, 206a, 206b), wherein the end portion can be formed by an upper portion or a lower portion of the pivot bearing portion (202, 202a, 202b), wherein the end portion (202a1, 202a2, 202b1, 202b2) may have a cylindrical shape, and wherein the receiving portion (206, 206a, 206b) may have a shape corresponding thereto to rotatably receive the end portion (202a1, 202a2, 202b1, 202b2).Coupling arrangement (1) according to claim 31, wherein the receiving portion (206) is sleeve-like and / or cylindrical and / or is formed by forming a metal sheet, for example by folding over a metal sheet edge in such a way that a type of loop is formed, for example in such a way that a free end of the metal sheet is folded over and joined to the metal sheet, for example welded, inserted or grooved.The coupling arrangement (1) according to claim 31 or claim 32, wherein the receiving portion (206) comprises at least one circumferentially extending through slot (221, 222) for passing the actuating member (104) therethrough.The coupling arrangement (1) according to claim 33, wherein the receiving portion (206) comprises two circumferentially extending through slots (221, 222) for passing the actuating member (104) through the receiving portion (206), wherein the through slots (221, 222) are provided on opposite sides of the receiving portion (206), for example such that the through slots (221, 222) are provided point-symmetrically to a centre point of the receiving portion (206).Coupling arrangement (1) according to claim 33 or claim 34, wherein each through slot (221, 222) is formed such that the second clamping portion (200) is movable, in particular rotatable, with respect to a guided-through actuating component (104) with one degree of freedom, wherein the actuating component (104) can be formed cylindrically, wherein the through slot (221, 222) can have a width which substantially corresponds to a diameter of the actuating component (104).Coupling arrangement (1) according to one of claims 33 to 35, wherein the pivot bearing portion (202) has a threaded bore (207) extending transversely to a longitudinal extension direction of the pivot bearing portion (202), which extends through the pivot bearing portion (202) and is configured for coupling to a threaded portion (107) of the actuating member (104), wherein the actuating member (104) extends through a first through slot (221) into the threaded bore (207) and can extend through a second through slot (222) on the opposite side of the threaded bore (207).Coupling arrangement (1) according to one of Claims 31 to 36, wherein the second clamping section (200) has a clamping bracket (205), wherein the receiving section (206) is provided on the clamping bracket (205), in particular can be a part of the clamping bracket (205), wherein the clamping bracket (205) including the receiving section (206) can be formed from one part, for example by forming a metal sheet.The coupling arrangement (1) according to claim 37, wherein the second clamping member (200) is detachably coupled to two actuating members (104a, 104b) via two pivot bearing portions (202a, 202b), such that the clamping member (200) can be released from one actuating member (104b) and moved relative to the other actuating member (104a) between an open position and a closed position, wherein the clamping bracket (205) comprises two of the receiving portions (206), a first receiving portion (206a) at a first end and a second receiving portion (206b) at a second end.Coupling arrangement (1) according to claim 38, wherein the second clamping component (200) has two clamping brackets (205) arranged at a distance from one another, wherein each clamping bracket (205) has a first end section with a first receiving section (206a) and a second end section with a second receiving section (206b), wherein each receiving section (206a, 206b) can be formed as the receiving section described in the preceding claims, wherein the first receiving sections (206a) in the first end sections of the clamping brackets (205) rotatably receive a first pivot bearing section (202a) and wherein the second receiving sections (206b) in the second end sections of the clamping brackets (205) rotatably receive a second pivot bearing section (202b), such that the first receiving sections (206a) are connected to one another via the first pivot bearing section (202a), and the second receiving sections (206b) are connected to one another via the second pivot bearing section (202b).Coupling arrangement (1) according to any one of claims 26 to 39, wherein the second clamping portion (200) at least partially comprises a cover (400) made of a material which is softer in design and / or has a higher coefficient of friction compared to other components of the clamping portion (200).Coupling arrangement (1) for attaching a load carrier, for example a child seat, to a bicycle, wherein the coupling arrangement (1) comprises a base (10) with a load carrier coupling portion (12, 14), for example a receptacle for receiving a connecting portion (302, 304) of a supporting structure (300) of the load carrier, a first clamping portion (100) provided on the base (10), and a second clamping portion (200), wherein the first clamping portion (100) and the second clamping portion (200) form between them a receiving region (A) for a fastening portion (B) on the bicycle, wherein the second clamping portion (200) is provided movably relative to the base (10) via a first actuating member (104a) and a second actuating member (104b) in order to clamp the fastening portion (B).The coupling assembly (1) according to claim 41, wherein the second clamping portion (200) is coupled to the base (10) via the first operating member (104a) and the second operating member (104b) such that the second clamping portion (200) can be separated from the second operating member (104b) and can be rotated about the first operating member (104a) between a closed position and an open position.The coupling arrangement (1) according to claim 42, wherein the second clamping portion (200) is detachably coupled to the first actuating member (104a) via a first pivot bearing portion (202a) and is detachably coupled to the second actuating member (104b) via a second pivot bearing portion (202b), such that the receiving region (A) can be changed by adjusting the position of the pivot bearing portions (202) via the actuating members (104a, 104b) in order to clamp the fastening portion (B).Coupling arrangement (1) according to claim 43, wherein the second clamping portion (200) comprises a clamping bracket (205, 205a, 205b), wherein the clamping bracket (205, 205a, 205b) comprises a first receiving portion (206a) for at least partially receiving the first pivot bearing portion (202a), and wherein the clamping bracket (205, 205a, 205b) comprises a second receiving portion (206b) for at least partially receiving the second pivot bearing portion (202b), wherein each clamping bracket (205a, 205b) including the receiving portions (206a, 206b) can be formed from one part, for example by forming a metal sheet.The coupling arrangement (1) according to claim 44, wherein the clamping bracket (205, 205a, 205b) is rotatable in its entirety relative to the respective pivot bearing portion (202a, 202b).The coupling arrangement (1) according to claim 44 or 45, wherein the first receiving portion (206a) is configured such that the first pivot bearing portion (202a) can rotate in the first receiving portion (206a), for example can rotate 360 degrees when the first pivot bearing portion (202a) is detached from the first actuating member (104a), and / or wherein the second receiving portion (206b) is configured such that the second pivot bearing portion (202b) can rotate in the second receiving portion (206b), for example can rotate 360 degrees when the second pivot bearing portion (202b) is detached from the second actuating member (104b).Coupling arrangement (1) according to one of claims 44 to 46, wherein the second clamping section (200) has two of the clamping brackets (205), an upper clamping bracket (205a) and a lower clamping bracket (205b), wherein the first pivot bearing section (202a) is rotatably coupled at its upper end section (202a1) to the upper clamping bracket (205a), in particular is rotatably received in the first receiving section (206a) of the upper clamping bracket (205a), and is rotatably coupled at its lower end section (202a2) to the lower clamping bracket (205b), in particular is rotatably received in the first receiving section (206a) of the lower clamping bracket (205b), and wherein the second pivot bearing section (202b) is rotatably coupled at its upper end section (202b1) to the upper clamping bracket (205a), In particular, the second receiving portion (206b) of the upper clamping bracket (205a) is rotatably received, and the lower end portion (202b2) thereof is rotatably coupled to the lower clamping bracket (205b), in particular is rotatably received in the second receiving portion (206b) of the lower clamping bracket (205b).Coupling arrangement (1) according to claim 47, wherein the end sections (202a1, 202a2, 202b1, 202b2) are formed cylindrically and the receiving sections (206a, 206b) provided for receiving the end sections (202a1, 202a2, 202b1, 202b2) on the clamping brackets (205a, 205b) are formed matchingly thereto in order to enable a relative rotation between a respective end section and the receiving section.Coupling arrangement (1) according to one of claims 47 or 48, wherein at least one of the receiving sections (206a, 206b) is sleeve-like and / or cylindrical and / or is formed by forming a metal sheet, for example by folding over a metal sheet edge in such a way that a type of loop is formed, for example in such a way that a free end of the metal sheet is folded over and joined to the metal sheet, for example welded or inserted or grooved.The coupling arrangement (1) according to any one of claims 47 to 49, wherein at least one receiving portion (206a, 206b) comprises at least one circumferentially extending through slot (221, 222) for passing the actuating member (104) through.Coupling arrangement (1) according to claim 50, wherein at least one receiving portion (206a, 206b), for example each receiving portion (206a, 206b), comprises two circumferentially extending through slots (221, 222) for passing the actuating member (104) through the receiving portion (206), in particular a front through slot (221) and a rear through slot (222), wherein the through slots (221, 222) are provided on opposite sides of the receiving portion (206a, 206b), for example such that the through slots (221, 222) are provided point-symmetrically to a centre point of the receiving portion (206).Coupling arrangement (1) according to claim 50 or claim 51, wherein each through slot (221, 222) is formed such that the second clamping portion (200) is movable, in particular rotatable, with respect to a guided-through actuating component (104) with one degree of freedom, wherein the actuating component (104) can be formed cylindrically, wherein the through slot (221, 222) can have a width which substantially corresponds to a diameter of the actuating component (104).Coupling arrangement (1) according to one of claims 50 to 52, wherein each pivot bearing portion (202a, 202b) has a threaded bore (207) extending transversely to a longitudinal extension direction of the pivot bearing portion (202a, 202b), which extends through the pivot bearing portion (202a, 202b) and is configured for coupling to a threaded portion (107) of the actuating member (104a, 104b), wherein the actuating member (104a, 104b) extends through a first through slot (221) into the threaded bore (207) and can extend through a second through slot (222) on the opposite side of the threaded bore (207).Coupling arrangement (1) according to one of claims 47 to 53, wherein at each clamping bracket (205a, 205b) a cover (400) made of a material is provided at least partially, which is formed softer compared to the clamping bracket (205a, 205b) and / or has a higher coefficient of friction, wherein the cover (400) is provided at each clamping bracket (205a, 205b) such that it comes into contact with the fastening portion (B).Coupling arrangement (1) for attaching a load carrier, for example a child seat, to a bicycle, wherein the coupling arrangement (1) comprises a base (10) with a load carrier coupling portion (12, 14), for example a receptacle for receiving a connecting portion (302, 304) of a supporting structure (300) of the load carrier, a first clamping portion (100) provided on the base (10), and a second clamping portion (200), wherein the first clamping portion (100) and the second clamping portion (200) form between them a receiving region (A) for a fastening portion (B) on the bicycle, wherein the second clamping portion (200) is configured such that it is surrounded by at least one supporting portion (20, 22; The second clamping portion (200) can be moved in the direction of movement 30) between an open position in which the second clamping portion (200) is positioned such that the coupling arrangement (1) can be positioned on the fastening portion (B) in the receiving region (A) by receiving the fastening portion (B), and a closed position in which the second clamping portion (200) is positioned for clamping the fastening portion (B).The coupling arrangement (1) according to claim 55, wherein the support portion (20, 22; 30) is movable by means of an actuating member (104) in a clamping movement direction relative to the first clamping portion (100) in order to decrease a distance between the support portion (20, 22; 30) and the first clamping portion (100) in order to decrease the receiving area (A).The coupling arrangement (1) according to claim 56, wherein the second clamping portion (200) is pivotably held on the support portion (20, 22) such that the second clamping portion (200) is pivotable relative to the base about a pivot axis (S1, S2) between the open position and the closed position, wherein the pivot axis (S1, S2) extends inclinedly to the clamping movement direction of the support portion (20, 22; 30), for example extends perpendicularly to the clamping movement direction of the support portion (20, 22; 30).Coupling arrangement (1) according to claim 57, wherein the second clamping section (200) is coupled to the base (10) at the support section (20, 22) in an articulated and indirect manner via the actuating component (104), in particular in such a way that the actuating component (104) and / or the support section forms at least part of an non-rotatable partner of an articulated arrangement (G1, G2) with respect to the base (10) and the second clamping section (200) forms a rotatable partner of the articulated arrangement (G1, G2).The coupling arrangement (1) according to any one of claims 56 to 58, wherein the support portion (20, 22) is formed as a pivot bearing portion (202) about which the second clamping portion (200) can rotate, wherein the pivot bearing portion (202) can be a cylinder rod portion (204) or a cylinder pin.The coupling arrangement (1) according to claim 59, wherein the second clamping portion (200) has a receiving portion (206) in which the pivot bearing portion (202) is rotatably received, wherein the receiving portion (206) can be sleeve-like, and / or wherein the receiving portion (206) can be cylindrical, and / or wherein the receiving portion (206) can be formed by forming a metal sheet, for example by folding a metal sheet edge such that a type of loop is formed, wherein a free end of the folded metal sheet edge can be welded or inserted or grooved in order to form a loop.The coupling arrangement (1) according to claim 60, wherein the receiving portion (206) comprises at least one circumferentially extending through slot (221, 222) for passing the actuating member (104) therethrough.The coupling arrangement (1) according to claim 61, wherein the receiving portion (206) comprises two circumferentially extending through slots (221, 222) for passing the actuating member (104) through the receiving portion (206), wherein the through slots (221, 222) are provided on opposite sides of the receiving portion (206), for example such that the through slots (221, 222) are provided point-symmetrically to a center point of the receiving portion (206).Coupling arrangement (1) according to claim 61 or claim 62, wherein each through slot (221, 222) is formed such that the second clamping portion (200) is movable, in particular rotatable, with respect to a guided-through actuating component (104) with one degree of freedom, wherein the through slot (221, 222) can have a width which substantially corresponds to a diameter of the actuating component (104).Coupling arrangement (1) according to claim 62 or 63, wherein the pivot bearing portion (202) has a threaded bore (207) extending transversely to a longitudinal extension direction of the pivot bearing portion (202), which extends through the pivot bearing portion (202) and is configured for coupling to a threaded portion (107) of the actuating member (104), wherein the actuating member (104) extends through a first through slot (221) into the threaded bore (207) and can extend through a second through slot (222) on the opposite side of the threaded bore (207).Coupling arrangement (1) according to one of Claims 60 to 64, wherein the second clamping section (200) has a clamping bracket (205), wherein the receiving section (206) is provided on the clamping bracket (205), in particular can be part of the clamping bracket (205), wherein the clamping bracket (205) including the receiving section (206) can be formed from one part, for example by forming a metal sheet.The coupling arrangement (1) according to claim 65, wherein the second clamping member (200) is detachably coupled to two actuating members (104) via two support portions (20, 22) such that the clamping member (200) can be released from one actuating member (104) and moved relative to the other actuating member (104) between the open position and the closed position, wherein the clamping bracket (205) comprises two of the receiving portions (206), a first receiving portion (206a) at a first end and a second receiving portion (206b) at a second end.Coupling arrangement (1) according to claim 66, wherein the second clamping component (200) has two clamping brackets (205) arranged at a distance from one another, wherein each clamping bracket (205) has a first end section with a first receiving section (206a) and a second end section with a second receiving section (206b), wherein each receiving section (206) can be formed as the receiving section described in the preceding claims, wherein the first receiving sections (206a) in the first end sections of the clamping brackets (205) rotatably receive first pivot bearing sections (202a), and wherein the second receiving sections (206b) in the second end sections of the clamping brackets (205) rotatably receive a second pivot bearing section (202b), such that the first receiving sections (206a) and the second receiving sections (206b) each via a single pivot bearing section (202a, 202b) or are each coupled to a single pivot bearing section (202a, 202b).Coupling arrangement (1) according to one of claims 56 to 67, wherein the second clamping portion (200) at least partially comprises a cover (400) made of a material which is formed softer and / or has a higher coefficient of friction compared to other components of the clamping portion (200).

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