Rucksack supporting element

Abstract

The invention relates to a connecting element which is designed to be mounted on a bicycle and to establish a releasable connection between the bicycle and an underside of a rucksack (3) carried by a bicycle rider (2) during the journey and to exert a spring action between the bicycle and the rucksack (3), the connecting element (1) comprising the following parts: at least one means (1a, 1a') for fastening the connecting element on the frame (4) and / or on the seat post and / or on a rear-wheel luggage rack (7) of the bicycle; at least one spring means (1b-ii) connected to the at least one fastening means (1a) for exerting the spring action between the bicycle and the rucksack (3); and at least one means (1c) connected to the spring means (1b-ii) for establishing a releasable connection to the rucksack (3).

Description

[0001] BACKPACK CARRIER ELEMENT

[0002] The present invention relates to a connecting element for establishing a connection between a bicycle and a backpack carried by the rider during the ride.

[0003] BACKGROUND OF THE INVENTION

[0004] In recent years, the number of telephone and online orders for a wide variety of goods has increased enormously, partly due to the COVID pandemic. Particularly in urban areas, the ordered goods are increasingly delivered, size and weight permitting, by bicycle couriers who secure the goods on front or rear bike racks, but often also carry them in backpacks worn while riding. This is especially true for food deliveries, which, in the case of hot meals, must be delivered quickly, which is why the couriers do not remove their backpacks even while riding - both to save time and to delay the cooling of the cargo. In these cases, the backpacks are often cube- or cuboid-shaped, e.g., with a base adapted to the size of a pizza box, and can weigh several kilograms when fully filled.These naturally represent a burden for the driver - especially in the case of vibrations on uneven roads.

[0005] The inventors are currently unaware of any devices that could reduce the strain on the driver in such cases. The development of such a device is therefore the objective of the present invention.

[0006] SUMMARY OF THE INVENTION

[0007] The invention achieves this object by providing a connecting element designed to be mounted on a bicycle and to establish a detachable connection between the bicycle and the underside of a backpack carried by the cyclist during the ride, and to exert a spring action between the bicycle and the backpack, the connecting element comprising the following parts: at least one means for fastening the connecting element to the frame and / or to the seat post and / or to a rear wheel carrier of the bicycle; at least one spring means connected to the at least one fastening means for exerting the spring action between the bicycle and the backpack; and at least one means connected to the at least one spring means for establishing a detachable connection to the backpack.

[0008] In this way, the present invention makes it possible to significantly reduce the load carried by the rider once he has connected the connecting element mounted on the bicycle to his backpack - both when stationary and while riding, in particular the load on the rider caused by the filled backpack due to vibrations when riding on uneven surfaces.

[0009] The invention is also not restricted to a specific shape of the backpack, as long as a connection can be made to the underside thereof, for which purpose a simple placement on the connecting means(s) of the connecting element according to the invention is sometimes sufficient, as will be explained in more detail below.

[0010] "Spring action" is understood here to mean any reduction in the load for the rider, i.e., the "spring means" or means need not be springs in the narrow sense and need not be elastically deformable. Thus, according to the present invention, the term "spring action" also encompasses a "damping effect," i.e., an acceleration of the decay of vibrations that the backpack experiences when subjected to vibrations while riding on uneven terrain. Therefore, according to the present invention, a spring means can also be a shock absorber, for example, if the connecting element (also) establishes a connection between the backpack and the bicycle's rear rack. During vibration-free riding on level terrain or while stationary, in these embodiments, a connecting element equipped with one or more shock absorbers as spring means reduces the load for the rider by placing the backpack on the connecting means or means.The fastening means(s) of the connecting element according to the invention are not specifically limited, as long as each is suitable for establishing a stable connection to a specific part of the bicycle. The connecting element can be both removable and permanently connected to the bicycle component. In the latter case, it can be welded or glued thereto, for example. In these embodiments, a fastening means can, in the simplest case, also consist of only a surface of the spring means adapted to the shape of the bicycle component, which is welded or glued to the bicycle component, such as a curved end surface whose radius of curvature corresponds to that of a cylindrical seat post or a cylindrical seat tube of the bicycle. However, the connecting element can be formed integrally with the bicycle component (e.g., by casting or 3D printing).

[0011] In preferred embodiments, however, the connecting element of the invention is designed to establish a detachable connection to the bicycle, so that it can be easily removed again if, for example, the rider does not wish to use the bicycle for carrying loads. In such preferred embodiments, the fastening means - or each fastening means independently - is particularly preferably made of

[0012] - a clamping device, more preferably a quick release, and

[0013] - a screwable clamp. In particularly preferred embodiments, its shape is also adapted to the shape of the bicycle component to which the connecting element is to be mounted.

[0014] The spring means(s) of the connecting element according to the invention are also not specifically restricted, as long as each is suitable for effectively reducing the load for the rider both while riding and when stationary. A simple, positionally and dimensionally stable, rigid support for the backpack on the rear wheel carrier, for example, therefore does not fall under the definition of "spring means," since in this case, no spring or damping effect would be exerted in the event of vibrations during riding. In preferred embodiments of the invention, the spring means—or each spring means independently—is elastically deformable and made of

[0015] - a coil spring,

[0016] - a bent tube,

[0017] - a bent or kinked bar, flat bar or plate and

[0018] - two partial rods or tubes connected to each other by a swivel joint and a tension spring, and more preferably selected from a bent tube and a bent rod, flat rod or plate.

[0019] Coil springs are particularly preferred when the connecting element is to be mounted on the rear luggage rack. In these cases, for example, one or more cylindrical or conical compression springs can be provided as the spring means between a fastening element mounted on the luggage rack and a connecting element connected to the backpack. However, non-linear coil springs, i.e., arc springs, can also be used, especially if the mounting is to take place not on the luggage rack but on a frame component of the bicycle. In particularly preferred embodiments, the number, length, and spring tension of any compression springs are adapted to the type, position, and weight of the backpack.

[0020] The same applies when using one of the other preferred embodiments of the spring means. Their number, length, and "spring effect" are also particularly preferably adapted to the respective backpack and the location of the connecting element on the bicycle. In most cases, the latter will not be the luggage rack, but rather the seat post, the seat tube, or one or both of the upper rear stays (i.e., the seat stays) of the frame, from which one or more curved tubes, rods, flat bars, or plates—or, as previously mentioned, also arc springs—can particularly preferably extend toward the backpack.In likewise preferable special cases, the or each elastically deformable spring means is a curved telescopic tube or a combination of a cylindrical or curved telescopic tube and a curved or cylindrical rod and is therefore length-adjustable, wherein the length of the respective telescopic tube is even more preferably fixable in order to remain stable while riding. Depending on the bicycle component to which the connecting element is mounted, one of the above combinations can, viewed from the mounting position, comprise first the telescopic tube and then the rod, or vice versa, in order to overall enable an arc-shaped, length-adjustable connection between the frame and the backpack. The two parts are particularly preferably designed as a single piece, i.e. welded together, or as a single piece, i.e. manufactured in one piece, in order to enable a stable connection and, at the same time, a good spring effect.

[0021] The connecting means of the connecting element according to the invention is also not specifically limited, as long as it is capable of establishing a sufficiently stable connection to the backpack. In one of the simplest embodiments, this can be a plate on which the backpack rests. Alternatively, the connecting means can be a magnet or a Velcro strip attached to the end of one (or each) spring means, e.g., welded to it, glued to it, or impaled on one or more spikes provided at the end.

[0022] However, in preferred embodiments, the connecting means - or each connecting means independently - is a plate which

[0023] - has a roughened or textured surface to create a frictional connection with the underside of the backpack; or

[0024] - is provided with at least one magnet for establishing a magnetic connection between it and at least one magnet provided at the bottom of or in the backpack; or

[0025] - is provided with a hook and loop fastener for creating a hook and loop connection between the spring and at least one hook and loop fastener provided on the bottom of the backpack. The use of a plate significantly increases the available adhesive surface compared to designs in which the end surface of the spring means is simply roughened or textured or provided with a magnet or hook and loop fastener, which improves the stability of the connection to the backpack. The stability of this connection is also improved when magnets or hook and loop fasteners are used compared to a frictional connection with a simple roughened or textured plate surface. Furthermore, when creating a magnetic connection or a hook and loop fastener connection to the backpack, the spatial position of the plate plays a lesser role, whereas in the case of a frictional connection, the plate and the bottom of the backpack should be kept as horizontal as possible while riding.

[0026] It should be noted that two magnets are not necessarily required to create a magnetic connection. This means that a single magnet can also be used as the connecting element, which can form a magnetic connection with a plate made of a ferromagnetic metal, preferably iron or an iron alloy, located on the underside of the backpack. Or, conversely, a ferromagnetic metal plate can serve as the connecting element, and at least one magnet can be provided at the bottom of or inside the backpack.

[0027] Both the magnetic connection and the Velcro connection can preferably be released by operating a lever or pulling on a loop, which are provided on the plate or on the magnet or on the Velcro strip, respectively.

[0028] The material and the type of connection of the three individual parts to the connecting element according to the invention are not particularly limited, as long as a sufficiently stable connection can be established between the bicycle and the rider's backpack - even for rides on uneven surfaces. In general, when selecting the material for the three components of the connecting element according to the invention, but also when designing their dimensions, the main focus should be on the stability of the connection between the three components and that to the backpack, as well as on the weight of the connecting element. In preferred embodiments, all fastening means, spring means and connecting means consist essentially of either metal or plastic, more preferably of stainless steel, aluminum or carbon fiber reinforced plastic, and are preferably formed in one piece, i.e. welded together, or in one piece, i.e.made in one piece.

[0029] In alternative preferred embodiments, the three individual parts of the connecting element according to the invention can also be connected to one another in an articulated manner, e.g. via a swivel joint, ball joint or spring joint, more preferably a ball joint or spring joint, so that the spring means and the connecting means can be pivoted or rotated relative to the fastening means after the connection to the underside of the backpack has been released.

[0030] At this point, it should be explicitly mentioned again that all three parts of the connecting element according to the invention—i.e., the fastening means, the spring means, and the connecting means—can each be provided independently of one another in single or multiple versions. Thus, multiple fastening means can be provided for mounting the connecting element at multiple locations on the bicycle frame and / or on the rear wheel carrier, each of which can lead to one or more spring means.

[0031] The position of the connection between spring means and connecting means is also not specifically restricted. Assuming that the mass contained in the backpack carried by the rider is evenly distributed across the base, the connection positions between any connecting means and the backpack should ideally be arranged mirror-symmetrically. With only one connecting means, this is therefore particularly preferably located in the vertical plane of symmetry through the backpack, in particular below the geometric center of gravity of the backpack, while multiple connecting means should preferably be located at equal distances from the plane of symmetry or the center of gravity. The same applies analogously if a connecting element according to the invention comprises only one connecting means connected to one or more spring means. Several particularly preferred embodiments of the connecting element according to the present invention are briefly described below:

[0032] - A connecting element in which at least one fastening means is designed to fasten the connecting element to the rear wheel carrier and at least one spring means is a coil spring.

[0033] - A connecting element in which at least one fastening means is designed to fasten the connecting element to the rear wheel carrier, at least one spring means is a coil spring, at least one further fastening means is designed to fasten the connecting element to the frame and / or to the seat post and at least one further spring means is a bent tube or a bent rod, flat bar or plate or one of the above embodiments with a telescopic tube.

[0034] - A connecting element in which at least one fastening means is adapted to fasten the connecting element to the frame and / or to the seat post and the or each spring means is a bow spring, a bent tube or a bent rod, flat bar or plate or one of the above embodiments with a telescopic tube.

[0035] - A connecting element comprising a fastening means for attachment to the seat post or seat tube of the frame, one or more spring means and a connecting means which is a plate having a roughened or textured surface or is provided with a magnet or with a hook and loop fastener.

[0036] - A connecting element comprising two fastening means for attachment to the two upper rear stays or seat stays of the frame, two spring means, and a connecting means which is a plate having a roughened or textured surface or is provided with a magnet or a hook-and-loop fastener. - A connecting element comprising a quick release or a screwable clamp for attachment to the seat post as the fastening means, a bow spring, a curved rod, or one of the above length-adjustable embodiments with a telescopic tube as the spring means, and a plate provided with a magnet or a hook-and-loop fastener as the connecting means.

[0037] BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The drawings are schematic representations of particularly preferred embodiments of the connecting element of the present invention, of which:

[0039] Fig. 1 is a side view of the preferred embodiment of the connecting element according to the invention from Example 1 in use; Figs. 2 and 3 show further preferred embodiments of Examples 2 and 3 as plan views (Figs. 2a and 3a) and as side views (Figs. 2b and 3b);

[0040] Fig. 4 is a side view of the preferred embodiment of Example 4 with a lever mechanism; Figs. 5a to 5c are side views of the preferred embodiments of Example 5; and Figs. 6a to 6f are illustrations of positions of the connections between the spring means and the connecting means of the embodiments of Example 6.

[0041] EXAMPLES

[0042] The particularly preferred embodiments of the invention shown in the figures are given merely as representative examples and are not to be understood as a limitation of the scope of protection.

[0043] Example 1

[0044] The drawing in Fig. 1 shows a particularly preferred embodiment of the connecting element of the present invention in use, i.e. a cyclist 2 sitting on a bicycle carrying a backpack 3 which is connected to the frame 4 of the bicycle via the connecting element according to the invention. In this embodiment, the connecting element comprises as fastening means 1a a screwable clamp for attachment to the seat post or seat tube of the bicycle frame 4 ("mount on seat post or frame") and as spring means 1b ("spring") a combination of a telescopic tube 1bi (with, for example, a circular, elliptical, square or rectangular cross-section) and a curved rod 1b-ii (with the same cross-sectional shape), which are connected to one another via a screw connection 1b-iii for length fixing.

[0045] In this embodiment, the connecting means 1c serves to establish a "magnetic connection" with a connecting part 5 provided inside the backpack 3. Both the connecting means 1c and the connecting part 5 in the backpack 3 can be magnets, or only one of them is or comprises a magnet, and the other is a plate made of a ferromagnetic metal, as already explained above. For example, a plate provided with a magnet as the connecting means 1c can be combined with an iron plate as the connecting part 5, which is attached inside to the bottom of the backpack 3 (e.g., glued or sewn thereto), as shown in Fig. 1. Alternatively, the connecting part 5 can also be attached outside to the bottom of the backpack 3.

[0046] In this way, the connecting element of the present invention establishes a stable magnetic connection between the bicycle frame 4 and the backpack 3, so that due to the spring action of the spring means 1 b, the load on the rider caused by the weight of the backpack while riding - but also when stationary - is reduced.

[0047] Example 2

[0048] Fig. 2 schematically illustrates another preferred embodiment of the connecting element 1 of the present invention as a top view (Fig. 2a) and a side view (Fig. 2b). This embodiment again comprises, as fastening means 1a, a screwable clamp for attachment to the seat post or seat tube of the bicycle frame 4—here shown cylindrically by the dashed line.

[0049] As spring means, this embodiment comprises, as clearly visible in Fig. 2a, four curved rods 1b, all of which are firmly connected to both the fastening means 1a and the connecting means 1c. According to the present invention, all three parts of the connecting element are preferably made of metal and welded together, or of a composite material and manufactured as a single piece (e.g., by means of 3D printing).

[0050] In this example, too, a plate is provided as the connecting means 1 c, which serves to establish a connection to the backpack, more precisely to a connecting part provided inside or outside on the bottom of the backpack. As in example 1, this can be a plate provided with a magnet or simply a ferromagnetic metal plate if a magnet is attached inside or to the backpack. Or the surface of the plate 1 c is provided with a hook-and-loop fastener, e.g. a hook-and-loop fastener glued to a plate made of any material such as wood, metal, or plastic, which serves to establish a hook-and-loop connection with a hook-and-loop fastener provided on the underside of the backpack.

[0051] Example 3

[0052] This embodiment shown in Figs. 3a and 3b differs from that in Example 2 only in that, as spring means 1b, instead of the four bent rods, a bent plate, preferably made of metal, is connected, preferably welded, to the fastening means 1a and the connecting means 1c.

[0053] Example 4

[0054] Fig. 4 is an enlarged side view of a similar embodiment of a connecting element according to the invention as in Example 2 or 3, but only the spring means 1 b and the connecting means 1 c are shown, but the fastening means 1 a is not shown (the dashed line indicates the further course of the spring means towards the fastening means 1 a).

[0055] In the present embodiment, the connecting means 1 c is a plate provided with a magnet or a ferromagnetic metal plate for establishing a magnetic connection with the backpack 3, which also comprises a metal plate or a magnet as a connecting part 5 at the bottom, which in this case too (as an alternative to the embodiment shown in Fig. 4) could not be provided in the backpack 3, but outside on its underside, as previously described in Example 2.

[0056] Furthermore, a lever mechanism 6 is now provided on the connecting means 1c, which makes the aforementioned magnetic connection easier to release. This lever mechanism comprises a lever 6a, which is attached to the underside of the connecting means 1c and pivotably mounted, and is connected to a curved rod 6b. The latter extends through a through-hole 1c', indicated by dashed lines, in the connecting means 1c to a small pressure plate 6c, which is arranged between the plate of the connecting means and the underside of the backpack 3 below the connecting part 5.

[0057] To release the magnetic connection, the rider (not shown in Fig. 4) only needs to reach backwards under the backpack 3 and press the lever 6a downwards, causing it to rotate as indicated by arrow A, thereby pushing the curved rod 6b upwards along with the pressure plate 6c at its end. This increases the distance between the magnet and the metal plate or the two magnets, and the magnetic connection can be released with less effort, meaning the backpack can be removed from the connecting element 1c much more easily.

[0058] Example 5

[0059] This example shown in Fig. 5 relates to embodiments of the connecting element according to the invention with more than one spring means. One of these is, as in the above examples, a curved rod 1b, which here is mounted via the corresponding fastening means 1a either on the seat post or on the seat tube of the bicycle frame 4, as shown in Fig. 5a, or instead on a rear wheel carrier 7 (indicated by dashed lines), as shown in Figs. 5b and 5c. The difference between the latter two embodiments of the spring means 1b lies in the radius of curvature, which is significantly smaller in Fig. 5c, which reduces the rigidity of the elastically deformable curved rod compared to the embodiment in Fig. 5b and increases the spring effect of the component.

[0060] In addition, these three embodiments of the connecting element each comprise four further spring means 1 b' (two of which are shown in the side view), each of which is mounted on the rear wheel luggage carrier 7 via a fastening means 1 a' and, just like the first spring means 1 b, is connected to the single connecting means 1 c. In the embodiments shown here, these are coil springs 1 b' that run vertically between the connecting means 1 c (and thus also between the connected backpack (not shown here) and the luggage carrier 7 and thus not only contribute to reducing the load for the rider but also to dampening any vibrations or shocks during the ride.

[0061] This effect is also exhibited by the spring element 1b, which, in these embodiments, primarily contributes to stabilizing the position of the connecting element 1c and thus the backpack during travel. Which spring element exhibits the stronger of these effects naturally depends on the elasticity and thus on the respective materials of the spring elements and consequently also—in the case of the coil springs 1b'—on their spring constants.

[0062] Example 6

[0063] In this example, preferable positions of the connections between a plurality of spring means 1 b and a connecting means 1 c are disclosed in further preferred embodiments of the connecting element according to the invention shown in Fig. 6. Similar to Example 5, combinations of one or more bent rods 1 b and one or more coil springs 1 b' are assumed as the spring means, whereby the position at which the rods 1 b are mounted on the bicycle via fastening means 1 a (not shown) is disregarded; i.e., the respective fastening means 1 a can be mounted on the seat post or seat tube of the bicycle frame as well as on the rear wheel carrier. In all six drawings, as noted in Fig. 6a, black circles represent the connecting positions of the coil springs as spring means 1 b' and black ellipses represent those of the bent rods as spring means 1 b.

[0064] Fig. 6a first shows an embodiment with a spring means 1 b and 1 b' each, which are preferably arranged one behind the other - seen in the direction of travel of the bicycle - in the vertical plane of symmetry of the connecting means 1 c, which in turn should be connected to the latter in the vertical plane of symmetry of the backpack, as already explained above.

[0065] Figs. 6b and 6c, however, show preferred embodiments with a curved rod 1b and several helical springs 1b', namely two in Fig. 6b and four in Fig. 6c, respectively, the latter embodiment thus corresponding to those previously described in Example 5. In both cases, the connecting positions of the three and five spring means 1b and 1b', respectively, are arranged symmetrically around the geometric center of gravity of the connecting means 1c.

[0066] And the embodiments shown in Figs. 6d to 6f correspond to those of Figs. 6a to 6c, each with a second bent rod 1b as spring means, wherein the connecting positions of all spring means 1b and 1b' are again all arranged symmetrically with respect to the center of gravity of the connecting means 1c.

[0067] With these new connecting elements, the present invention thus provides devices that can significantly reduce the load on cyclists who have to carry a full backpack while riding. To do so, the connecting element only needs to be mounted on the bicycle and then easily detachably connected to the backpack. The connecting elements according to the invention thus represent a tremendous enrichment of the state of the art, where, to the best of the inventors' knowledge, such devices were previously unknown.

Claims

PATENT CLAIMS 1. A connecting element designed to be mounted on a bicycle and to establish a detachable connection between the bicycle and the underside of a backpack (3) carried by the cyclist (2) while riding, and to exert a spring action between the bicycle and the backpack (3), wherein the connecting element (1) comprises the following parts: at least one means (1a, 1a') for fastening the connecting element to the frame (4) and / or to the seat post and / or to a rear wheel carrier (7) of the bicycle; at least one spring means (1b, 1b') connected to the at least one fastening means (1a, 1a') for exerting the spring action between the bicycle and the backpack (3); and at least one means (1c) connected to the at least one spring means (1b, 1b') for establishing a detachable connection to the backpack (3).

2. Connecting element according to claim 1, characterized in that the fastening means (1 a) - or each fastening means (1 a, 1 a') independently - consists of - a clamping device, preferably a quick release, and - a screwable clamp is selected.

3. Connecting element according to claim 1 or 2, characterized in that the spring means (1 b) - or each spring means (1 b, 1 b') independently - is elastically deformable and consists of - a coil spring, - a bent pipe, - a bent or kinked bar, flat bar or plate and - two partial rods or tubes connected to each other via a swivel joint and a tension spring are selected, wherein it is preferably selected from a bent tube and a bent rod, flat rod or plate.

4. Connecting element according to claim 1 or 2, characterized in that the or each spring means (1 b, 1 b') is elastically deformable and is selected from a curved telescopic tube and a preferably one-piece combination of a cylindrical or curved telescopic tube and a curved or cylindrical rod and is thereby adjustable in length, wherein the length of the respective telescopic tube is preferably fixable.

5. Connecting element according to one of claims 1 to 4, characterized in that the connecting means (1 c) - or each connecting means (1 c) independently - is a plate which - has a roughened or textured surface to create a frictional connection with the underside of the backpack (3); or - is provided with at least one magnet for establishing a magnetic connection between the plate and at least one magnet (5) provided at the bottom of or in the backpack, wherein the magnetic connection is preferably releasable by actuating a lever or pulling on a loop, which are each provided on the plate; or - is provided with a Velcro strip for creating a Velcro connection between it and at least one Velcro strip provided at the bottom of the backpack, wherein the Velcro strip provided on the plate is preferably connected to a loop and the Velcro connection can be released by pulling on the loop.

6. Connecting element according to one of claims 1 to 5, characterized in that at least one fastening means (1 a, 1 a') is designed to fasten the connecting element to the rear wheel carrier (7) and at least one spring means (1 b, 1 b') is a helical spring, wherein optionally at least one further fastening means (1 a, 1 a') is designed to fasten the connecting element to the frame (4) and / or to the seat post and at least one further spring means (1 b, 1 b') is selected from the options. according to claim 3 with the exception of the coil spring or the options according to claim 4.

7. Connecting element according to one of claims 1 to 6, characterized in that at least one fastening means (1 a, 1 a') is designed to fasten the connecting element to the frame (4) and / or to the seat post, and the or each spring means (1 b, 1 b') is selected from the options according to claim 3 with the exception of the helical spring or the options according to claim 4; wherein the connecting element optionally comprises one of the following features: - a fastening means (1 a, 1 a') for fastening to the seat post or to the seat tube of the frame (4), one or more spring means (1 b, 1 b') and a connecting means (1 c) selected from the options according to claim 5; or - two fastening means (1 a, 1 a') for fastening to the two upper rear stays or seat stays of the frame (4), two spring means (1 b, 1 b') and a connecting means (1 c) selected from the options according to claim 5.

8. Connecting element according to claim 7, characterized in that it comprises: - a quick release or a screwable clamp for attachment to the seat post as a fastening means (1 a, 1 a'), - a curved rod or a length-adjustable embodiment as defined in claim 4 as spring means (1 b, 1 b') and - a plate provided with a magnet or a Velcro strip as a connecting means (1 c); wherein the fastening means (1 a, 1 a') and the spring means (1 b, 1 b') are preferably connected to one another via a swivel joint, ball joint or spring joint, whereby the spring means (1 b, 1 b') and the connecting means (1 c) can be pivoted or rotated relative to the fastening means (1 a, 1 a') after the connection to the underside of the backpack (3) has been released; wherein the fastening means (1 a, 1 a'), the spring means (1 b, 1 b') and the connecting means (1 c) preferably consist essentially of metal, more preferably of stainless steel.

9. Use of a connecting element according to one of claims 1 to 8 for Creating a detachable connection between a bicycle and the underside of a backpack (3) carried by the cyclist (2) while riding 10. A bicycle comprising a connecting element according to any one of claims 1 to 8 for establishing a detachable connection between a bicycle and the underside of a backpack (3) carried by the cyclist (2) during the ride.

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