Luggage box for a bicycle

Abstract

The invention relates to a collapsible luggage box 100 for a bicycle, comprising interconnected packages, a horizontal package 105 and two vertical packages 106 extending laterally therefrom. The packages comprise three interconnected rectangular base elements, a central base element MBE and two side base elements SBE, furthermore two rectangular side wall elements SWE, two rectangular central wall elements MWE, and four rectangular diagonal wall elements DWE. The following wall and base elements are connected to one another in a rotationally pivotable manner as follows: the side base elements SBE with the central base element MBE, the side wall elements (SWE) with the side base elements (SBE), and the central wall elements (MWE) with the central base element (MBE).Furthermore, the four diagonal wall elements (DWE) forming the box wall are each connected to a center wall element (MWE) and a side wall element (SWE) in a rotational or rotation-translational manner or by means of detachable connecting means. The diagonal wall elements DWE are further connected to a side floor element (SWE) in one of the following ways: rotationally or rotation-translationally or by means of detachable connecting means (170), or not connected.

Description

The invention relates generally to a luggage box for a bicycle which is mountable on a suitable holding device of the bicycle disposed above the rear wheel or the front wheel and which is collapsible when not in use. It relates in particular to a luggage box of the generic type according to the preamble of the main claim.Such luggage boxes for carrying luggage along on the bicycle are frequently known as baskets made of a wire or plastic mesh, which can be mounted on a front or rear luggage carrier spanning the respective wheel or similar racks, which do not have their own luggage holder, but merely holders for separate luggage bags. These luggage holders are also intended to fall under the term luggage carriers below.The baskets can sometimes also be partially pushed together, so that their base area is wider than the luggage carrier, but reducible to the luggage carrier width (DE 31 14 823 A1). In this case, struts of the regularly loose braids or connections of the wires or plastic braids are used, which are intended to form the basket and serve for stability in order to change the position of the enclosing walls, for example to partially fold them together. However, such braids often require a second inner package for containing small sized luggage. Or additional supporting holders are necessary in order to guarantee the stability of the baskets even with a level ground (CN 2 081 366 U). In addition, such baskets cause continuous, disturbing noises during travel and sometimes cannot be combined with the luggage holders consisting of one or two brackets or rods.DE 10 2021 002 551 A1 discloses a wide luggage box, the width of which can be substantially reduced to that of the luggage carrier. Its base plate is three-part and can be folded together with the wall elements, so that the lateral parts of the base plate and all wall elements hang next to the wheel on the right and left. The wall elements thereof are also fixed by a plurality of locking means. A disadvantage of this luggage box is that folding the individual components and connecting or disconnecting them is complicated and difficult, in particular without daylight and requiring too much time.A bicycle rack supporting the use of shopping bags can be found in US 2011 / 0132949 A1. The bags may be suspended from an upright support which is foldably mounted on a horizontally disposed platform of the luggage carrier. In order to keep the bags away from the rear wheel, a vertical skirt is arranged on each side next to the rear wheel, which skirt can be folded onto the platform. A luggage box which can be used for various luggage is additionally to be mounted.A disadvantage of the known luggage boxes is often that they rattle, which is generally regarded as unacceptable during bicycle driving, in particular since damage or wear of components of the bicycle can be associated therewith over the course of time.The invention is therefore based on the object of providing a luggage box which is significantly wider than the luggage carrier by a multiple as far as possible and the width of which can be substantially reduced to the width of a conventional luggage carrier with few manipulations and without tools.It is further desirable that the luggage box has a higher stability and load-bearing capacity than the known luggage boxes, and the wall of which is designed to be predominantly closed at least on the bottom side, preferably also in the wall region, in order to transport small-part luggage, including accessories. In this case, the total weight of the bicycle is intended to be increased only to a slight extent by the luggage box per se.It is further desirable that the luggage box does not fold during travel, or only in the case of a very uneven travel floor, both in the folded and in the unfolded state.The object on which the invention is based is achieved by a luggage box according to claim 1. The dependent claims referred to describe preferred embodiments of the invention.Due to the use of the luggage box on a bicycle as a balancing vehicle, a luggage box is preferably constructed symmetrically at least to the longitudinal axis of the bicycle, at least insofar as it relates to its basic construction, so that it does not cause any significant imbalance by itself. This is also intended to apply to the luggage box according to the invention, wherein deviations from a symmetry of all components are possible, for example in the connections between the wall elements and / or floor elements of the luggage box, the wall height or supplementary accessories. In addition, the luggage box according to the invention can also be designed symmetrically with respect to an axis of symmetry lying transversely to the longitudinal axis. It is also apparent, due to the balance, that the width of the luggage box is set to limits. For example, a two to three or four times the width of the usual luggage carriers is desirable. Depending on the weight and stability of the luggage box, somewhat larger widths are also possible.In the following description, the components and their connections to one another are described which form the base and the encircling wall which extends upwards from the base. The description is made in each case on the basis of one of the arrangement of housing components used multiple times and symmetrically, their connections to one another and further components, and also relates to the further arrangements of this type, unless otherwise described.According to the invention, the object is achieved by a luggage box whose wall and bottom elements can be folded together to form three packs connected to one another, namely a horizontal pack and two packs extending laterally therefrom in the vertical direction. The luggage box is mountable with its horizontal package on a luggage carrier or other holder for luggage as provided for bicycles. The two vertical packs extend on either side of the rear or front wheel. The luggage box comprises the following components:a box floor comprising a rectangular central floor element (MBE) and two rectangular side floor elements (SBE) arranged on both sides of the central floor element, wherein the floor elements each have two longitudinal sides and two transverse sides,wherein the central floor element is configured for horizontal attachment to a bicycle rack,wherein a first longitudinal side of each of the two side floor elements (SBE) is connected to a longitudinal side of the central floor element,two rectangular side wall elements (SWE) having two longitudinal sides and two transverse sides, one longitudinal side each of the side wall elements being connected to the second longitudinal side, opposite the first, of a side base element (SBE) sind,wherein the longitudinal sides of the floor elements have corresponding lengths,wherein the longitudinal sides of the side floor elements (SBE) are rotationally connected to the longitudinal sides of the central floor element in such a way that the side floor elements are pivotable relative to the central floor element, andwherein the longitudinal sides of the side wall elements are rotationally connected to the longitudinal sides of the side base elements in such a way that the side wall elements are pivotable relative to the side base element.To form a wall completely enclosing the box bottom, the luggage box further comprises:two rectangular middle wall elements (MWE) with two longitudinal sides and two transverse sides, wherein one middle wall element (MWE) each is rotationally connected with one of its transverse sides to one transverse side of the middle floor element in such a way that the middle wall elements can be pivoted relative to the middle floor element,four rectangular diagonal wall elements each having two longitudinal sides and two transverse sides, of which one longitudinal side is connected to a longitudinal side of a central wall element and the second longitudinal side opposite the first is connected to a transverse side of the lateral wall element in one of the following ways to form the box wall comprising the box base:,wherein one of the transverse sides of the diagonal wall elements is not connected to a transverse side of a side base element or is connected in one of the following ways: rotational or rotational-translatory or by means of releasable connecting means.Where "elements" are described below without further specification of their type, this is intended to mean both the wall and the floor elements.The basic structure of the luggage box is divided into the box floor and the wall surrounding the floor and rising from the same. The luggage box has a rectangular outline and all wall and floor elements preferably have a rectangular basic shape. This includes the fact that structurally necessary or formally desired deviations are present in sections in the edge regions. The wall has a height, calculated from its lower edge, with which safe storage of luggage is readily possible without the luggage box obstructing the cyclist. Lower or higher heights are also possible provided that the position and the design of the luggage carrier support this. Both the box floor and the front and rear walls of the luggage box are designed at least in three parts according to the following description. The wall and bottom elements, if a connection is arranged between them, are firmly connected to one another but movable relative to one another. The luggage box is mounted with its bottom on a holder suitable as a luggage carrier, wherein the luggage carrier can be arranged both above the rear wheel and above the front wheel of a bicycle.For the following description of the luggage box with respect to its use on a bicycle, a three-dimensional right hand Cartesian coordinate system is used, with the direction opposite to the horizontal direction of travel and thus the longitudinal axis of the bicycle as the X direction, the horizontal direction of travel in the negative X direction, the Y axis which is likewise horizontal and at right angles to the X axis, and the Z axis which runs vertically to the X and Y axes. For the following description of the invention, the coordinate origin is located in the upper side of the middle floor element, so that the horizontal X-Y plane of a three-dimensional Cartesian coordinate system with its coordinate origin in the geometric center of the middle floor element and the X axis defines the center line of the luggage box, in which the longitudinal sides of the aforementioned and subsequently named floor and wall and further elements are to extend in the X direction and their transverse sides are to extend in the Y direction. For this description of the wall and bottom elements, the Z direction is not needed. To clarify the names and the relationships of the wall and floor elements relative to one another, reference is made to two-dimensional schematic representations of folding nets (FIGS. 6 to 14 ), in which the luggage box is folded open and the outlines of the wall and floor elements are shown laid in the X-Y plane.The terms "front" and "rear" refer to the regular direction of travel of the bicycle and the front and rear wheels, respectively. With reference thereto, the terms "longitudinal" and "length" are used as being parallel to the longitudinal axis of the bicycle and thus to the X-axis, and the terms "transverse" and "width" are used as being perpendicular thereto, i.e., parallel to the Y-axis. The terms "inner", "outer", "middle" are defined in relation to the distance from the longitudinal axis of the bicycle and thus to the X axis of the coordinate system of the luggage box. These usages of terms disregard the Z direction and refer to the X-Y plane of the above-mentioned folding nets. The terms "upper" and "lower", on the other hand, refer to gravity according to their original meaning.In addition to the box floor designed in three parts, the luggage box according to the invention also comprises two side walls of the luggage box designed in three parts, namely the side of the luggage box opposite the front side and the rear side of the luggage box opposite the latter. Both sides correspond in their subdivision into middle wall element and diagonal wall elements arranged on both sides thereof to the subdivision of the box bottom into middle bottom element and side bottom elements arranged on both sides thereof. Due to this division of front and rear walls and the connection of the transverse sides of their central elements to the transverse sides of the central floor element and the purpose of the wall elements to form a wall enclosing the box floor, it is evident that the lengths and widths of the wall and floor elements substantially correspond to the lengths and widths of those wall and floor elements with which a connection exists or is produced during the folding apart. Nothing else means that, as described below, longitudinal sides or transverse sides of wall and floor elements are "connected to one another".The upper edge or lower edge of an element is referred to below as the lower or upper rectilinear delimitation of the wall element in the unfolded state of the luggage box. The "rectilinear" boundary is determined by the basic rectangular shape and ignores functional protrusions and recesses and bends.Here, "corresponding" lengths and widths are understood to be dimensions which are still to be regarded as corresponding taking into account the tolerances customary for the relevant technical field. In the art under consideration here, tolerances in the range up to a maximum of 5 mm may be acceptable, with smaller tolerances up to 3 mm being preferred, further preferred up to 1 mm, further preferred up to 0.5 mm, further preferred up to 0.1 mm, further preferred up to 0.05 mm, in order to improve the accuracy of fit, to reduce rattle and in particular to fold all elements together to form the three connected packs mentioned. The deviations also include deviations from a rectangular or square geometry, unless expressly described otherwise. Furthermore, such deviations of the lengths and widths as well as the geometry of the individual elements are also included, which are caused by the design of the respective connections of the elements, by the wall thickness of the connected elements, the folding over of the vertical packages described below or by other functions of the luggage box. Functionally conditional dimensional and geometric deviations of this type can, depending on the size of the luggage box, lie in the range of up to 15 mm, preferably up to 13 mm, or within the scope of the tolerances mentioned above.The subdivision of the luggage box into a three-part base and three-part wall elements of the front and rear side, the respective corresponding lengths and widths and the respective rotational, rotational-translatory and releasable connections supporting the folding together of the wall and base elements allows the adjacent wall or base elements to be folded together to form the three packs mentioned and consequently the folding together and folding apart of the luggage box. The horizontal package mountable on the luggage carrier is formed of the middle wall members as constituent parts of the front and rear sides of the wall and the middle floor member by putting the former folded on the middle floor member. The side wall elements and side floor elements arranged on both sides of the central floor element and rotationally connected to one another and to the central floor element are each folded together to form a vertical package which extends vertically downward to the right and left of the luggage carrier. Both the right and left vertical packages also contain the right and left diagonal wall elements, respectively. These are folded inward, i.e. onto the side base element, so that both are positioned between the side base element and the side wall element and are contained in the vertical packs with their folding down into the vertical position.The distribution of the wall and bottom elements over all three packages allows a compact stacking of the elements contained in each package. The thickness of all three packs can be reduced to the sum of the wall thicknesses of the elements contained in the respective pack, depending on the type and embodiment of the connection of the elements. The folding and unfolding of the luggage box can be carried out individually for the packages or in one line depending on the embodiment.The connection of the wall and base elements to one another can be effected by means of rotational, rotational-translatory and / or releasable connections. Since the three floor elements together with the two side wall elements realize the mechanical cohesion of the three packs in the unfolded and folded state, the connections between these elements are preferably designed to be rotational. This also includes the use of rotational-translatory connections, although these are not absolutely necessary here.The named rotational connections between the wall elements as well as the wall elements and the floor elements are designed in such a way that during the folding together all wall elements can be pivoted into the interior of the luggage box, in order to form the packages.The skilled person is familiar with various rotary joints, i.e. joints having one degree of freedom, for carrying out the rotational connections of the wall and / or floor elements. The arrangement of the rotary joints between the wall and / or floor elements can be effected, for example, in such a way that their rotational axes lie along the sides of the elements to be connected in the surface, i.e. in the plane which is spanned by the surface of the element in question, or on the surface, optionally at a small distance from at least one of the elements connected to one another, or in the element. In all three cases, the skilled person can resort to numerous known embodiments of swivel joints which allow the respective elements to be folded together, so that, starting from a rectangular or a planar arrangement of the elements relative to one another, they can form the packages lying flat against one another as a result of the folding together. When selecting the swivel joints that can be used and arranging them, it also takes into account the wall thickness of the elements, in that, for example, a miter, a toothing and / or a bevel or suitable holders for the swivel joint are used on both elements between the elements to be connected, such that the axis of rotation is positioned in such a way that both elements can be folded together to an angle of 0° or 90°, starting from an angle of 90° or 180°.According to embodiments of the invention described in more detail below, for example, a rod axis is used, which is arranged in the wall and / or bottom elements in their edge region and extends at least in sections along the respective connection. In this case, a beveling of the relevant edge region of one of the elements to be connected can be used there with at least partially toothed portions, so that the rod axis runs through both elements and connects them in a rotational manner. Such a bevel extends at an angle of 90° along the side of the element to be connected and has a depth in the usually two-digit millimeter range. It is obviously applicable if the elements enclose an angle of 90° in the unfolded state of the luggage box. A toothing of the elements without tilting can be used if the elements lie in one plane in the unfolded state, i.e. have an angle of 180° with respect to one another, and if they are intended to fold from this 180° position by 90° in one direction or the other. As toothing is generally known, a sequence of protrusions and recesses along the edges of two elements is understood, which correspond to one another in such a way that the protrusions and recesses of both elements can connect the elements in an interlocking manner. The rod axis extends through the projections of both elements. It is also possible that only the projections of one of the elements form the bevel.The skilled person is also familiar with various embodiments of rotary thrust joints which can be used for realizing the rotational-translatory connections for the purpose described here. Rotary joints have two degrees of freedom, rotation about an axis of rotation and displacement along the axis of rotation. The translation is an outward movement with which the wall and bottom elements can be displaced relative to one another if necessary in order to fold them together. Preferably, only the wall elements of such a connection are moved translationally.Such connections can also be realized by means of a rod axle in conjunction with a bevel and toothing as described above, so that these are compatible with the purpose of moving, folding together the connected wall or floor elements and folding together and folding apart the luggage box. Obviously, a toothing usable for this purpose has such protrusions and recesses which permit a displacement of the connected elements along the axis of rotation, for example in that the recesses are wider than the protrusions, viewed along the edge of the element in question, or in that the toothing is configured only in sections.Rotation and translation can be carried out successively or simultaneously by means of suitable configurations of the elements of the luggage box. It has proven advantageous if the translatory movement is carried out during the rotation. This can be effected, for example, in that the axis of rotation or its holder and the wall of the wall or bottom element to be displaced translationally have corresponding sliding surfaces which are designed and arranged relative to one another in such a way that, as a result of the rotation, the desired translatory movement of one of the connected elements is carried out along the axis of rotation.In addition to the at least rotational connections, detachable connections can be used for those connections with which the diagonal wall elements are integrated. For example, translatory movements of the elements relative to one another, which occur as a result of the folding and unfolding of the luggage box, can be avoided or compensated by a suitable selection of the releasable connections. The releasable connecting means can be configured in various ways, for example as latching elements, hooks and / or comparable connecting means, which can be used and released again with little effort, quickly and without aids and secure the connection at least in the unfolded state during use of the luggage box. Optionally, stretchable connecting means are also usable which can maintain a connection between the wall and / or bottom elements also during folding and unfolding. Releasable connections can be used in particular for connecting the so-called diagonal wall elements to the adjoining elements. The term "adjoining elements" here denotes wall and floor elements of the luggage box which directly adjoin one another in the unfolded state.The diagonal wall elements are those wall elements which, in the unfolded state, connect the middle wall elements to the respective side wall element and thus complete the encircling wall forming the four corners of the luggage box.The diagonal wall elements adjoin with one of their transverse sides, in the unfolded state with their lower transverse side, also referred to below as lower edge, in each case to a transverse side of a side floor element. The longitudinal sides of the diagonal wall elements adjoin a longitudinal side of a central wall element with a first longitudinal side and a transverse side of the side wall element with the second longitudinal side opposite the first to form the box wall comprising the box bottom.Due to the fact that all wall elements on three sides, i.e. except for the upper edges of the wall elements which delimit the wall upwards and are opposite the lower edges, and the floor elements on all four sides adjoin further wall or floor elements, it is optionally possible that the lower edge of the diagonal wall elements is not connected to the adjoining side floor element.Folding the luggage box together and apart using the diagonal wall elements described is ensured if at least the rotational, rotational-translatory and releasable connections are realized in combination according to the following compilation. However, it is expedient not a condition here that these are designed in the same way at all of the four corners of the luggage box. In the following table, an "RT" stands for the execution of a rotational-translatory connection, an "R" stands for a rotational connection and an L stands for a detachable connection.R is RRTL. LR is RL. LL. LL. LR is RL. LL. LL. LR is RVariations are possible as long as all the elements of the luggage box described above remain connected to one another in some way, i.e. none of these elements has to be added and connected separately, and as long as the changed type of connection does not prevent the folding together and the folding apart. In the opposite sense, individual detachable connections can be omitted, as long as the connection that is missing thus does not compromise the cohesion and the stability of the luggage box during use and during folding and unfolding. For example, the detachable connections of the diagonal wall elements to the side floor elements can be omitted. Rotational connections can also be replaced by rotational-translatory connections. This is easily determined by tests. For the use and combination of the above-described alternative connection means, reference is likewise made to the description of the folding nets (FIGS. 6 to 14).In one embodiment of the invention, at least one of the rectangular diagonal wall elements is of divided design, namely at least in two parts, in such a way that at least one of the two partial elements has the shape of a rectangular isosceles triangle. The two sub-elements of a diagonal wall element are referred to below as inner or outer diagonal part, corresponding to their position relative to the center of the luggage box and thus to the central wall element adjoining the relevant diagonal wall element. The inner diagonal part thus adjoins a central wall element and is connected thereto as described above for the diagonal wall element. The outer diagonal part adjoins a side wall element and is connected thereto, likewise as described above.At least the outer diagonal part is formed as a right-angled isosceles triangle. The two angles lying at the base of this triangle are known to be 45° each. If such a diagonal wall element is square, this shape applies to both diagonal parts.A wider luggage box, on the other hand, can be constructed using, for example, a wider side floor member. This has the result that the diagonal wall element adjoining it also becomes wider. Since the outer diagonal part is preferably an isosceles triangle, in such a case the inner diagonal part is a right-angled trapezoid. Such a trapezoid apparently has two inner right angles which abut the longitudinal side of the inner diagonal part and abut the longitudinal side of the middle wall element. The second internal angle of the right-angled trapezoid adjoining the division of the diagonal wall element is likewise 45° due to the previously described geometry of the adjoining outer diagonal part. This variant is also shown in the folding nets on the basis of an example (FIG. 10B ). Alternatively or additionally, a wider luggage box can also be achieved by means of a wider central floor element which projects laterally beyond the luggage carrier.The diagonal division of each diagonal wall element runs on all four diagonal wall elements when using square diagonal wall elements starting from its outer lower corner to the inner upper corner or otherwise to the upper edge of the non-square diagonal wall element, as can be seen from the folding nets FIGS. 10A, 10B and 11 to 14.The division of the diagonal wall elements forms the base of at least the triangular outer diagonal part in both variants. Along this division, the two diagonal parts are connected to one another in a rotational or rotational-translatory manner, so that the diagonal parts can also be folded together and, if necessary, an avoidance movement can be carried out in order to achieve a minimum possible packing density. As a result of these connections and the foldability of the two-part diagonal wall element, it is possible to fold apart and together the two elements of the wall of the luggage box adjoining the relevant diagonal wall element, together with the two-part diagonal part.By virtue of more than one diagonal wall element being configured in two parts, variations of the unfolded luggage box are possible, for example, in that the wall of the luggage box can optionally remain open on two or one side, for example for receiving luggage which is larger than the luggage box. By means of detachable connecting means, a circumferential wall can also be produced in this variant.In order to compensate for the finite wall thickness, a translatory movement of at least one of the partial elements of the diagonal part relative to an adjoining element can also take place here on all divided diagonal wall elements with the rotatory movement. That is, as a result of the pivoting of the two rotationally connected diagonal parts about their common axis of rotation, an element thereof is moved along the axis of rotation.In a further embodiment, all wall elements are connected to one another by means of such two-part diagonal wall elements and by means of rotational or rotational-translatory connections. That is to say that the wall of the luggage box formed by the wall elements is self-contained by means of rotational or rotational-translatory connections. By means of the divided diagonal wall elements and their connections capable of rotation and / or translation, it is thus possible to fold the luggage box together and apart despite the wall being closed, so that the three contiguous packs described above are formed. In this variant, the luggage box is folded apart and collapsed by pivoting two, preferably two, wall elements lying opposite one another, as a result of which all other wall elements follow one another as a result of the connections.The folding apart and folding together of the luggage box when the wall is closed requires at least one translatory movement on each of the four diagonal wall elements due to the wall thickness of the elements. This is realized by at least one of the rotational-translatory connections on each of the diagonal wall elements. A rotational-translatory connection between the side wall element and the outer diagonal part proves to be structurally advantageous. The translatory movement takes place during the folding of the luggage box downward along the axes of rotation, i.e. into the luggage box, and during the folding apart in the opposite direction.Folding apart and collapsing the luggage box when the wall is closed on itself is possible if at least the rotational and rotational-translatory connections are realized as a combination according to the following compilation, wherein the translatory displacement is carried out by the inner or outer diagonal part, since the wall elements adjoining it have no degree of freedom in the direction of the box floor as a result of their connection to the floor elements. It can be seen from the table that even with the wall closed in itself, only a rotational-translatory connection can be required, namely if this is arranged between the side wall element and the outer diagonal part. In the variants listed below, it is expedient, but not a requirement, that the connections at all of the four corners of the luggage box are designed in the same manner. In the following table, an "RT" stands for the execution of a rotational-translatory connection, an "R" stands for a rotational connection.RTRTR is RRTR is RRTR is RRTRTRTR is RR is RRTRTRTWhich of the two transverse and longitudinal sides of the individual elements listed in the above table are to be connected to one another is logically obtained if the three base elements form a continuous box base and the wall elements are arranged around the box base in such a way that the wall comprising the box base is formed by the vertical position thereof. This can be seen if all the floor and wall elements necessary for forming the open-top luggage box are viewed lying next to one another in one plane. In this embodiment, no releasable connecting means are necessary, but optionally possible, for example between those adjoining wall and / or base elements which do not require rotational or rotational-translatory connections. Regarding the connections of this variant, reference is made to the illustration of the folding nets (FIGS. 10A, 10B, 11 to 14).In this embodiment too, it is possible that no connection is formed between a side base element and the adjoining inner diagonal part and that instead of the rotational connections, rotational-translatory connections are used, provided that the system remains stable enough despite the possible supplementary translations.Furthermore, the transverse sides of the side floor elements are preferably at least as long as the wall elements are intended to be high, i.e. as the longitudinal sides of the wall elements of the front and rear side of the luggage box are long. Preferably, the wall elements have a uniform height. However, the luggage box can also be designed with different wall heights.The axes of rotation of the rotational and rotational-translatory connections are mounted terminally, as is generally known for example from hinges, on the element to be pivoted in each case, in order not to impede the rotation by the element itself. If both elements connected to one another are pivotable, this is apparently the case for both elements. In both cases, a gap may consequently be present between the elements in an undesired width. To reduce this possibly disturbing gap, the rotation axis can be integrated in one or both elements. For this purpose, the elements connected to one another can be, for example, interlocked with one another in the region of the rotational axis, as described above. Other types of rotational and rotational-translatory connections with an axis of rotation located in the elements are also possible. Such an embodiment of the axes of rotation within the elements allows the connected elements to form a planar surface, so that they are advantageous for the connections of the side floor elements to the central floor element and of the side wall elements to the side floor elements. In the embodiment of the side wall elements with a bevel described below, the bevel can assist in the formation of a flat surface and can itself be part of a surface, depending on the design and width of the bevel.According to further embodiments, the axes of rotation can lie in or on at least one of the surfaces of the elements connected to one another. A combination of the aforementioned positions of the rotational axis in or on one of the surfaces of the elements connected to one another is also possible. Such embodiments are particularly suitable for elements which, in the unfolded state of the luggage box, lie in one plane, such as the floor elements or the wall elements of the front or rear side of the luggage box or the diagonal wall elements divided into diagonal parts. The rotation of the respectively connected elements takes place in such a way that the axis of rotation lies on the inside, with respect to the pivoting of the elements in the direction of one another, so that in the folded-together state both elements come to lie closely or directly adjacent to one another. The axis of rotation can lie in at least partially toothed arrangements of holders for a rod axis.In addition, the connection can be designed in such a way that a rotation beyond the folding together or the folding apart is prevented. For example, both elements can be toothed with one another on the element side opposite the axis of rotation in such a way that the toothing forms a stop, so that the elements lie in one plane in the unfolded state. When connecting the two diagonal parts which are folded into the luggage box, such a stop can be formed on the inside along the partition.The same can also be applied to the rotational-translatory connections, wherein, as described above, free distances between the holders or hinges can permit translation.If, according to a further embodiment, the axis of rotation is realized by a rod axis, rotational connections can be produced which extend uniformly over the entire length of the respective connection. Furthermore, rod axes are advantageous for the execution of rotational-translatory connections, as described above. Rod axes can be integrated into bent edges of the wall. This leads to improved stability, since loads can be distributed over the rotational axis over the entire length of the connection. Bent portions of the wall or bottom elements are arranged wherever two elements in the unfolded state meet at an angle. As described above, the bent portions permit such a position of the axes of rotation by which the connected elements can be folded together to form the package. This relates to the following connections: diagonal wall element with side wall element, middle base element with middle wall element and side wall element with side base element.According to a further embodiment of the invention, the wall and bottom elements of the luggage box are plate-shaped, with a wall thickness, also referred to as plate thickness in this embodiment, in the range from 2 mm to 30 mm, preferably in the range from 5 mm to 27 mm, more preferably in the range from 8 mm to 24 mm, more preferably in the range from 10 mm to 20 mm. The thickness of the panels depends, inter alia, on the size of the luggage box, its load-bearing capacity and the material of the luggage box. It has proven advantageous if the wall and / or bottom elements of the luggage box consist of a plastic, since this material is inherently elastic to a certain extent. This assists the folding and unfolding of the luggage box, wherein the usable material must obviously be stiff enough to be able to carry the loads to be respectively absorbed. The plate-shaped wall and base elements can be structured in a suitable manner, for example have surface structures, in order to reduce the weight while maintaining the desired load-bearing capacity. Furthermore, in particular the previously described rotational and rotational-translatory connections of plate-shaped elements are supported.Features of a luggage box, which are generally regarded by the user as quality features, are a small space requirement for the folded luggage box and the stability of the luggage box both in the unfolded and in the folded state and with and without loading. The luggage box according to the invention, which can be folded into three packages, also fulfills these requirements according to a further embodiment, in which the two vertical packages are tilted by a few degrees from their vertical position in the folded state. Since this position is produced as a result of the folding of the luggage box, it is referred to below as folding over, and this also irrespective of whether the respective vertical package is tilted beyond the exactly vertical position or not up to the vertical position. That is to say that the vertical packs are tilted inward or outward, on one side or alternatively on both sides, such that they have an angle α in the range of 65° or 115°, preferably 70° or 110°, more preferably 75° or 105°, more preferably 80° or 100°, with respect to the underside of the central floor element. The angle is measured starting from the underside of the central base element lying parallel to the X-Y plane of the coordinate system used here in the direction of the wheel, so that, at values of greater than 90°, the respective package is tilted in the direction of the wheel, protrudes outward from the wheel at angles of less than 90°. In which direction a package is to be tilted, in addition to the width of the central floor element, also depends on the width of the support surface of the luggage carrier on which the luggage box is mounted. In the case of luggage carriers, in particular wide luggage carriers, it is usually preferred to fold over the vertical packs in the direction of the wheel with α>90°. In principle, however, it is also possible not to fold the vertical packages into the vertical position, for example in the case of luggage carriers which have struts which run obliquely outwards for mounting the luggage carrier on the wheel. The term "overfolding" is intended to include both variants. The folding over preferably serves for placing the vertical packages against the said struts of the luggage carrier.This embodiment is advantageous in various situations. Thus, a luggage box can be used for different widths of bicycle luggage carriers, provided that the horizontal package can be placed on the luggage carrier. Otherwise, in the case of slight deviations, spacers can be used between the luggage box and the horizontal package, so that the vertical packages rest against said struts of the luggage carrier at an angle of less than 90° to the horizontal plane of the central floor element. The angle α preferably does not assume such a value less than 90°, at which the vertical packs project significantly beyond the bicycle width. Sometimes, the angles α of the achievable folding over can be greater than 90°.A contact of the vertical packages with the braces of the luggage carrier has proven to be advantageous. It is thus possible to dispense with further components for securing the vertical packs in this position. By abutting the luggage carrier, optionally with an elastic intermediate layer between the two, a rattle of the packages can be avoided. In addition, when using the luggage box with bicycle bags according to the following description, an advantageous force transmission can take place from the often heavy bicycle bags via the respective vertical package to the bicycle rack.An angle α>90° will also be the general rule due to the construction of the luggage box. This is because the axes of rotation between the central floor element and the side floor element lie outside the width of the supporting surface of the luggage carrier in order to ensure the folding together into vertical packages. The latter is intended to serve the purpose of saving space for the luggage box in the folded state. In addition, the folding over with α>90° is supported by the sequence of the folding, in particular with the wall closed in itself. As described below with reference to the figures, the following procedure results from the compounds described for this embodiment.The tilting from the vertical position following the force of gravity can also be supported in various ways, for example by fixing the packages in the desired position by connecting the two packages to one another or to the bicycle. The vertical packs can be fixed, for example, by separate retaining elements on those wall or base elements which are contained in the vertical packs or are connected to them. Alternatively, the rotational and optionally also rotational-translatory connections between these elements can be designed in such a way that they can be releasably fixed in the desired position.According to a further embodiment, the folding over of the packages at angles of more than 90° is supported by the rotational and / or rotational-translatory connections. Thus, axes of rotation of the luggage box can be arranged relative to one another in such a way that the folding together of the luggage box already leads to the vertical packs being folded over. Thus, those axes of the rotational and / or rotational-translatory connections which extend lying parallel to the X axis along the two longitudinal sides of the central base element and the two longitudinal sides of the central wall elements have an axial distance dL for the rotational axes lying to the left of the X axis and an axial distance dR for the rotational axes lying to the right of the X axis, in each case measured in the plane of the surface of the central base element. The amount of both axial distances is greater than half the sum of the wall thickness of the wall and base elements connected in each case by means of the rotational connection. The excess amount of the axial distances beyond the amount determined by the wall thicknesses does not exceed the value of 50 mm and can assume any value within these limits. To clarify this situation, reference is made to the folding nets of FIGS. 6, 7 and also FIGS. 10A, 10B, 11- 14, which represent the described axial spacings. The offset of the described axes has the effect that the vertical packages can be folded over beyond their vertical position in the direction of the X axis, i.e. in the direction of the wheel, and can contact the mounting of the luggage carrier.In order to secure this position, according to a further embodiment of the invention, composite parts are formed and arranged between the floor and / or wall elements in such a way that they can assist the folding and / or the unfolding of the luggage box and / or fix the folded and / or the unfolded state of the luggage box.Such suitable composite parts can be arranged, for example, between different wall and / or base elements, which exerts such a force on at least one of the two elements connected to one another in a rotational or rotational-translatory manner that the folding together or unfolding of the relevant elements is at least assisted. By a suitable selection of the composite parts and the elements subjected to force, both alternatives can be realized in the luggage box, both composite parts for folding apart and for folding together. Such composite parts can be arranged, for example, between the floor elements of the luggage box and / or between the side floor elements and the side wall elements and / or between the side wall elements and diagonal wall elements, in the case of a two-part embodiment of the outer diagonal parts thereof, and / or the middle wall elements and the middle floor elements and / or between the middle wall elements and the diagonal wall elements, in the case of a two-part embodiment of the inner diagonal parts thereof, and / or likewise between the diagonal parts of the diagonal wall elements. A folding promoting force can be apparently also generated in such a manner as to fix the position of the folded vertical packs.If, according to a further embodiment, the said composite parts are spring elements which are arranged between the longitudinal sides of the central floor element and the respectively adjoining side floor elements, their restoring force can be used for supporting the folding and unfolding and for fixing at least the vertical elements. Such spring elements are suitable for fixing both the folded-over packages and their vertical position. The direction in which the restoring force is to act in order to achieve the desired effects depends on the type of springs and their position. The mode of operation is to be explained by way of example on the basis of torsion springs and is to be transferred analogously also to other spring types, it being possible for the mode of operation and its spring constant or spring characteristic to be determined by simulation or tests.If, for example, a torsion spring or tension spring or compression spring is integrated in a rotational connection between a transverse side of the central floor element and the adjacent transverse side of a central wall element to be folded inwards in such a way that the folding apart of both elements is assisted, the restoring force is smaller in the unfolded state of the luggage box than in the folded state. If, on the other hand, a torsion spring or tension or compression spring is integrated between a longitudinal side of the central floor element and an adjoining longitudinal side of a side floor element to be folded downward in order to support the folding together, its restoring force is smaller in the folded state of the luggage box than in the unfolded state. The latter embodiment is suitable for fixing the position of the vertical packs including the side floor elements in the folded state, consequently also in their folded-over state. The cooperation of the spring elements and the position of the three packages lead to a strong fixing of the states of the luggage box.In a further embodiment of the luggage box, an intermediate space is formed between a side floor element and the adjoining side wall element in the folded state of the luggage box. This is configured such that it is suitable to receive the one- or two-part diagonal wall element adjoining the side wall element. As explained above, the side wall element is folded together with the side base element, so that such an intermediate space between the two wall elements accommodates one wall thickness of the one-piece diagonal wall element or twice the wall thickness of the two-piece, folded diagonal wall element. To produce the intermediate space as a result of the folding together, the side wall element can comprise a bevel in the direction of the center line on its longitudinal side, which is connected to a longitudinal side of the side base element. The rotational connection between the side wall element and the side base element, i.e. its axis of rotation, is formed in this case on the free longitudinal side of the bevel.A completely closed package is achieved if the folded edge also extends into the front and rear sides of the luggage box, so that the distance which could be present up to the central wall element in the folded state is covered there. Such a lateral beveling extending partially along the transverse side would furthermore be suitable for covering the rotational or rotational-translatory connection between the side wall element and the diagonal wall element.According to a further embodiment of the luggage box, the length of the longitudinal sides of the central wall elements and the length of the longitudinal sides of the diagonal wall elements are less than or equal to half the length of the longitudinal sides of the central floor element. These size relationships also serve for the production of packages with a small thickness, in this case all three packages, since the folded-in middle wall elements and diagonal wall elements do not overlap in the middle of the luggage box.In a further embodiment, the luggage box has holding devices for hanging a bag on at least one of its two sides. Such bicycle bags are generally known and are attached to the lateral brackets of a luggage carrier by means of optionally lockable hooks. This possibility can also be realized in the luggage box according to the invention in that the central floor element or the central wall elements or all three elements have such holding devices, namely in such a way that they project laterally beyond the rotational connection between the central floor elements and the side floor elements. According to the aim of the invention to minimize the size of the folded luggage box, the holding devices preferably do not extend beyond the lateral extent of the vertical packs, more preferably ending flush with the vertical packs on the outside. Furthermore, in the elements of the respective vertical pack, recesses are arranged in the area surrounding the holding devices and in the required size, which allow the fastening of the bicycle pockets.This arrangement of the holding devices is supported by the folding together of the luggage box, since the elements mentioned lie on the luggage carrier in the horizontal package and can thus transmit the load to the luggage carrier. In addition, the elements are placed on top of each other, so that the holding devices can be designed as extensions of the elements and thus have the sufficient strength. By all elements having such holding devices which additionally correspond with respect to their position in the folded state, so that in each case one holding device of a base element and of a wall element lie one above the other, the load capacity of a holder formed from two holding devices can be significantly increased. Preferably, the retaining devices have a shape and a distance from each other which assists the use of the usual bicycle bags.The invention is explained in more detail below with reference to exemplary embodiments. The features described above are intended to be explained using the example in an illustrative manner, but not in a restrictive manner, on the basis of the associated drawings. The person skilled in the art would combine the features previously realized in the various embodiments of the invention and subsequently in the exemplary embodiment in further embodiments, insofar as it appears expedient and meaningful to him. The drawings show in FIG. 1 shows a perspective plan view of an embodiment of the luggage box in the unfolded state; FIG. 2 is a side view of the luggage box according to FIG. 1 ; FIG. 3 is a perspective view of the luggage box of FIG. 1 in the folded state and mounted on a bicycle; FIG. 4 is a rear view of the luggage box of FIG. 3; FIG. 5A is a perspective top view of the luggage box according to FIG. 1 in a first unfolded or folded state, FIG. 5B is a perspective top view of the luggage box according to FIG. 1 in a second unfolded or folded state, FIGS. 6 to 9 show two-dimensional folding nets of the wall and base elements with one-piece diagonal wall elements, and FIGS. 10 to 14 show two-dimensional folding nets of the wall and bottom elements with two-part diagonal wall elements.The drawings show the apparatus to the extent required to explain the invention. They do not claim completeness or scale. This also relates to the folding nets. These folding nets are intended to show schematically the geometry and position of the individual elements with respect to one another and the type and position of their connections.FIG. 1 illustrates an embodiment of a luggage box 100 according to the invention in a perspective view looking at the rear side and into the luggage box 100. The further FIGS. 1 to 5 relate to this embodiment. For the spatial relationship of the features explained below and above in the general description of the invention relative to one another and to a bicycle on whose luggage carrier 320 the luggage box 100 can be mounted, the underlying Cartesian coordinate system is represented in FIG. 1 and all further figures.The luggage box 100 is shown in the unfolded state and comprises a horizontal box bottom which is surrounded circumferentially by a vertical wall. The wall comprises a front side which is situated at the front in the direction of travel F of the bicycle (not shown) and a rear side opposite the front side. The luggage box 100 is constructed at least in its essential components and, unless otherwise described, symmetrically with respect to the center line ML. For the sake of better clarity, all reference numerals are not entered in all figures, provided they are more clearly recognizable in other figures. For the spatial assignment of the components of the luggage box 100 relative to one another and to the direction of travel F of the bicycle (not shown), the X, Y and Z axes of a Cartesian coordinate system are supplemented.The rectangular box bottom is formed in three parts and has a central bottom element MBE in the middle, which is connected on both sides to that side bottom element SBE by means of a rotational connection 101. Each side floor element SBE is adjoined in each case by a side wall element SWE, which represents the lateral constituents of the wall of the luggage box 100 lying parallel to the center line ML. The side wall elements SWE are also connected to the side floor elements SBE by means of rotational connections 101. The front and rear sides of the luggage box 100 are formed by three wall elements each, a central, rectangular middle wall element MWE, which are connected on both sides to a diagonal wall element DWE by means of rotational connections 101. Each diagonal wall element DWE is connected by its side opposite the rotational connection 101 to one side of the side wall elements SWE by means of a rotational-translatory connection 102, so that the wall of the luggage box 100 is closed in itself. In the exemplary embodiment shown, the wall has a substantially uniform height. The wall and bottom elements are plate-shaped, with a plate thickness of 10 mm to 15 mm, depending on the respective element.All diagonal wall elements DWE are formed in two parts in the embodiment shown and are substantially square. The division of all diagonal wall elements DWE runs, starting from the respective outer, lower corner of the luggage box 100, diagonally in the direction of the center line ML, so that essentially two rectangular isosceles triangles are produced. The outer part of each diagonal wall element DWE is referred to as the outer diagonal part ADT and the associated inner part as the inner diagonal part IDT. In the embodiment shown, both diagonal parts ADT, IDT are connected by means of rotational connections 101. The lower edge 151 of the diagonal wall elements DWE does not have a rotational or rotational-translatory connection to the adjoining side floor element SBE. Only one releasable connecting means 170, which is designed in the form of a nubis 170, temporarily connects both elements. Nubis 170 refers to small protruding components and bulges. The connection by means of Nupsi 170 releases and closes automatically during the folding and unfolding of the luggage box 100.The rotational connections 101 are formed in the wall and bottom elements by being interlocked with each other and the axes of rotation (not shown) passing through the interlock 160. The rotational connections 101 which connect the two diagonal parts IDT, ADT of each diagonal wall element DWE to one another are designed in such a way that their axes of rotation (not shown) run on the outer surface of the diagonal parts IDT, ADT and are held by a toothing 160 protruding from the wall of the diagonal wall elements DWE. Other embodiments of the rotational and rotational-translatory and the detachable connections are possible, as described above in general terms for the invention.Both diagonal parts ADT, IDT of each diagonal wall element DWE abut each other and are also linked within the luggage box 100 by means of a toothing 160 which, however, does not have a rotational axis and consequently opens when the luggage box 100 is folded together. In this regard, reference is made to the description relating to FIG. 5A.The side wall elements SWE have at their lower end a bevel 150 which extends at an angle of substantially 90° from the outer surface of the side wall element SWE in the direction of the centre line ML. The base-side bent portion 150 of the side wall element SWE continues in the region of the wall of the luggage box 100. This section likewise runs at an angle of 90° to the side wall element SWE, so that it covers a short section of the diagonal wall elements DWE, including their rotational-translatory connection 102 to the side wall element SWE. The bent portion 150 consequently comprises a side wall element SWE on the front side, on the bottom side and on the rear side. The horizontal portion of the bent portion 150 on the bottom side forms the box bottom in conjunction with the surface of the bottom elements. The side wall element SWE is connected in a rotational manner to the adjoining side base element SBE by means of its bent portion 150. The rotational connection 101 is formed on the free end of the bevel 150 pointing toward the center line ML, analogously to the rotational connection 101 of the side floor elements SBE to the center floor element MBE by means of toothing 160.All wall elements are planar on the outside, provided that no components of the luggage box 100 are integrated and consolidated and stiffened on the inside by means of a round-top structure, so that the luggage box 100 has a lower weight, without loss in the load capacity of the wall. The floor elements are likewise also designed (not shown). Other forms of structuring the wall and bottom elements to reduce weight are possible. The structuring of the inner sides of both side wall elements SWE also includes in each case an intermediate space as a component of the handles. The intermediate space is open at the bottom, so that the handles can be easily grasped and operated.In the floor elements MBE, SBE, in the rotational connections between the middle floor element MBE and the side floor elements SBE and between the middle floor element MBE and the middle wall elements MWE, composite parts 110 are each designed as spring elements, namely as torsion springs. The spring elements between the floor elements MBE, SBE are designed and arranged in such a way that their restoring force assists the folding together of the luggage box 100, while the restoring force of the spring elements between the central floor element MBE and the central wall elements MVE assists the folding apart. Other composite parts with comparable effect are possible. Such composite parts can also be used on other connections.Passages 120 are arranged in the central floor element MBE, through which passages the luggage box 100 can be mounted on the luggage carrier (not shown) of a bicycle by means of suitable mounting elements (not shown).Furthermore, both the central floor element MBE and the central wall elements MWE comprise, on those sides which adjoin the side floor elements SBE and the diagonal wall elements DWE, respectively, rectangular projections with rectangular passages which project into corresponding recesses in the side floor elements SBE and side wall elements SWE and diagonal wall elements DWE, respectively. These projections represent holding devices 130, which, when the luggage box 100 is folded together, project laterally beyond the horizontal package (FIG. 3 ), but not beyond the side wall elements SWE. The holding devices serve to receive bicycle bags (not shown) in the folded state. In this state, the holding devices lie on top of one another. By the holding devices being designed as an extension of the wall or floor elements, they can have sufficient strength. Other embodiments of the holding devices are possible.In a further embodiment of the luggage box 100, the side wall elements each have a handle 140, which is formed, for example, on the lower edge 151 of the side wall element SWE in order to grip and move the side wall element, in the present exemplary embodiment to perform a rotation of the relevant side wall element. The handle is formed integrally with the side wall element SWE in the form of a bulge outwards in this embodiment. The handle 140 can thus be gripped from behind in order to perform a rotation of the side wall element SWE about its horizontally located rotational axis (not shown) and thus to perform the folding apart of the luggage box 100. The mentioned axis of rotation is that which is a component of the rotational connection 101 formed in the bevel with the adjoining side base element SBE. Other embodiments of handles for grasping and moving the side wall member SWE are possible.FIG. 2 illustrates the rear view of the luggage box 100 according to FIG. 1, viewed in the X-axis according to the coordinate system illustrated. In particular, the toothings 160 of the rotational connections 101 between the central wall element MVE and the diagonal wall elements DWE and the central wall element MVE and the central floor element MBE are clearly visible. In the exemplary embodiment shown, the latter rotational connection is formed by means of a toothing 160 in which the teeth of the central floor element MBE are formed not in its rear-side plane, but in the plane of the central wall element MVE, as a substantially shortened chamfer of the central floor element MBE compared to the side wall element SWE. This assists the folding of the middle wall elements SWE onto the middle base element MBE. Other embodiments of these rotational connections 101 are possible.In the exemplary embodiment, the axes of rotation (not shown) are realized by rod axes.Furthermore, the embodiment of the bent portions 150 in the region of the wall of the luggage box 100, the rotational connections 101 running on the surface of the diagonal wall elements DWE, the diagonal parts ADT, IDT thereof, spring elements 110 as composite parts in each case between the central floor element MBE and the adjacent central wall elements MWE, and the nubi 170 at the lower edges 151 of the diagonal wall elements DWE are shown. It is visible that the nubiss 170 each engage, for example can latch, into a corresponding recess in the edge region of the adjacent side floor element SBE. In addition, in the folded state, the nubiss 170 also engage in corresponding recesses (not shown) in the side wall elements SWE. Other embodiments of these connecting means are possible.FIG. 3 shows a rear perspective view of the luggage box 100 mounted on the rear bicycle rack 320 of a bicycle 500. The latter is only partially shown. The support surface (not shown) of the bicycle rack 320 is predominantly covered by the luggage box 100, so that only its struts 322 are visible, which extend as far as the hub of the bicycle 500 for the purpose of mounting the bicycle rack 320. The conventional structure of a bicycle rack 320 and its dimensions are well known. Since there are various configurations thereof and the luggage box 100 is adaptable thereto, description of the bicycle luggage carrier 320 here can be omitted.The luggage box 100 is shown in the folded state, with the horizontal package 105 lying horizontally on the support surface (not shown) of the bicycle rack 320 and the two vertical packages 106 extending to the right and left thereof.The horizontal package 105 comprises the central floor element MBE, which is mounted on the bicycle rack 320 in a stable and detachable manner with suitable mounting means, such as screws, clamps or the like, and the two central wall elements MWE, which lie horizontally on the central floor element MBE. Of the latter, only the rear edge region with its vertically upstanding teeth can be seen, which are part of the toothing 160 of the rotational connection 101 with the central wall element MVE adjoining there. The spring element 110 is integrated in the rotational connection 101, as described with respect to FIG. 2.The middle wall elements MVE and the middle bottom element MBE have the holding devices 130 described with reference to FIG. 1, which are configured to receive bicycle bags (not shown). In total, eight such holding devices are formed, of which two are situated one above the other, one of the middle base element MBE and one of a middle wall element MVE situated above it. Each of the pairs of holding devices 130 can each receive a hook of a bicycle bag or similar luggage, so that a bicycle bag can be hung on both sides. This addition of luggage transport is supported by the horizontal package which provides the holding devices and by the vertical packages which each provide a spacing of the bicycle bag from the rear wheel.On both sides of the central wall elements MWE, the toothing 160 of the respective rotational connection 101 to the adjoining diagonal wall element DWE is visible. The diagonal wall elements DWE are placed folded together in the interspace (not shown), which is formed by the bevel 150 described with reference to FIG. 1 with its rotational connection 101 to the adjoining side floor element. This intermediate space also serves to engage behind the side wall element SWE in the region of the handle 140. For this purpose, the bent portion has a suitable recess (not shown) in the region of the handle 140. The space required for this purpose in the intermediate space is available in this embodiment because of the diagonal wall elements DWE (not shown) folded together to form a triangle.The vertical package 106 on the right in the viewing direction can be partially inferred from a structuring of the side floor elements SBE on the underside, which structuring is used, as described with reference to FIG. 1 with respect to the wall elements, for weight reduction and stabilization of the elements. At the lower end of this package, the rotational connection 101 is also partially shown, which is formed between the side wall element SWE and the adjoining side base element SBE at the chamfer 150 of the side wall element SWE.FIG. 4 illustrates the luggage box 100 according to FIG. 3, but viewed in the X-axis direction according to the coordinate system illustrated. In this viewing direction, the fold-over 410 of the two vertical packs can be displayed. The bearing surface 321 of the bicycle rack 320 is also visible. The horizontal package 105 of the luggage box 100 rests thereon. The vertical packets 106 extend on both sides. Both vertical packs 106 are tilted from the exactly perpendicular position (corresponding to the Z direction of the coordinate system shown) towards the wheel. That is, the angle α measured between the horizontal plane of the bottom side of the middle floor element MBE and the bottom side of the respective side floor element SBE is greater than 90°, according to the definition set forth in the above description of the invention.The folding over of the right-hand vertical package in the direction of the wheel in the viewing direction is realized by means of an axis offset between the two right-hand axes of the rotational connections, which run along the longitudinal side of the central base element MBE and along the longitudinal side of the central wall element MVE. Analogously, the folding over is also implemented on the basis of such an axial offset on the left side of the luggage box 100 for the left package. The offsets are referred to herein as right side axis distances dRand left side axis distances dLof the luggage box 100. The axial offsets are dimensioned in the exemplary embodiment such that an angle α of 100° is achieved taking into account the wall thicknesses of the wall and base elements mentioned. Both the wall thickness of the wall and / or base elements and the axle offsets and consequently the angles α of the fold-over can assume values that deviate from the details.FIGS. 5A and 5B show two different states of the luggage box 100 during the folding and unfolding, respectively. The luggage box 100 corresponds to that as described with reference to FIGS. 1 to 4, so that reference is made to the descriptions there with regard to the components and features thereof.In the folded state shown in FIG. 5A, all wall elements are tilted from their vertical position in the direction of the box bottom. However, no packet is yet formed (folding) or unfolded (folding). It is visible that all rotational and rotational-translatory connections 101, 102 execute a rotational movement and the two-part diagonal wall elements DWE are folded together along their diagonal division, so that their outer surfaces are moved towards each other. The remaining wall elements SWE, MVE are moved in the direction of the respectively adjacent floor elements SBE, MBE. The folding takes place against the force of the spring elements 110 which are arranged between the central wall elements MVE and the central base element MBE. A force effect supporting the folding together by means of the spring elements 110 between the central floor element MBE and both adjacent side floor elements SBE (see FIG. 1 ) occurs due to the self-contained wall of the luggage box when the central wall elements MVE have reached their horizontal position on the central floor element MBE.The diagonal wall elements DWE and their connections are designed in the present exemplary embodiment in such a way that only one rotational-translatory connection 102 is required on each diagonal wall element DWE. As shown in the above table, this is that between the outer diagonal part ADT and the adjacent side wall member SWE. The two connections of the diagonal wall elements, those between the inner diagonal part IDT and the middle wall element MWE and between the two diagonal parts IDT, ADT are rotational connections 101. Between the lower edge 151 of the outer diagonal part ADT and the side bottom element SBE there is the releasable connection described above by means of Nupsi 170. In the exemplary embodiment, during the folding, the outer diagonal part ADT moves downward into the luggage box 100. The extent of its translatory displacement is inevitably produced on the basis of the wall thickness and the axial offset shown in FIG. 4 on the respective side of the luggage box 100.FIG. 5B illustrates the state of unfolding and collapsing in which the three packs 105, 106 are formed. The middle, horizontal package 105 comprises the middle base element MBE and the middle wall elements MVE lying flat thereon. On both sides thereof, the side bottom elements SBE and side wall elements SWE are folded together to form the vertical packs 106. Within the packages, between the side floor elements SBE and side wall elements SWE, the diagonal wall elements DWE folded together to form an isosceles triangle are located. The folded edge 150 completely surrounds the diagonal wall elements DWE, so that the vertical packs are substantially closed in the folded state.Starting from this position, the spring elements 110 arranged between the floor elements MBE, SBE according to the description of FIG. 1 are designed and suitable for automatically carrying out the lowering of the vertical packs into their folded-over position (FIGS. 3, 4 ).The following figures show so-called folding nets of different variants of the possible connections of all floor and wall elements of the luggage box 100, wherein the wall and floor elements lie in one plane, here this is intended to be the X-Y plane, so that their connections to one another must be clearly shown, even if not all connections can be mapped faithfully. In the folding nets explained below, the different connection types are marked with different lines, whereina dash-dot line a rotational-translatory connection,a dashed line represents a rotational connection,a dotted line represents a detachable connection; anda solid line represents no connection.The folding nets show a plurality of embodiments with regard to the connections between the elements and their size. By way of example, an axial offset in the connection of the middle wall elements MWE to the diagonal wall elements DWE is also shown. Further such or similar axle offsets are possible on other connections if it is expedient or necessary for a compact folding together of the luggage box 100. The connections of the elements of the luggage box described with reference to FIGS. 1 to 5B are illustrated in FIG. 10A.As explained in the beginning of the description of the invention, the names of the wall and floor elements were selected on the basis of their position in the luggage box 100. The terms of the enclosure of the individual elements as transverse and longitudinal sides, on the other hand, were chosen on the basis of their representation in the plane. Accordingly, all sides of the elements running in the plane from top to bottom are so-called longitudinal sides and all sides running from left to right are so-called transverse sides. The terms make it out of consideration that, in particular, the transverse sides of the side wall elements and the longitudinal sides of the diagonal wall elements can no longer extend in the direction indicated when these wall elements are erected from the plane, but rather adjoin one another according to the description relating to FIGS. 1A to 5B and are connected in a rotationally translatory manner in this exemplary embodiment.FIGS. 6, 7, 8 and 9 show schematically and two-dimensionally the elements of the luggage boxes 100 with one-piece diagonal wall elements DWE, wherein the above-mentioned connection types are used at different positions and the luggage box can be unfolded and folded as described above to form the three packs connected to one another.All elements of the embodiments are rectangular. Furthermore, the floor elements and the side wall elements of a luggage box 100 always have a uniform length S 1. The central bottom element MBE of all four variants also have a uniform width M 1, which can be modified, however, since this is not a condition for the described properties. Furthermore, the wall elements always have the same height A 1, which is possible, but not necessary, neither within a luggage box 100 nor in the case of different boxes.It is uniform in all four variants that a rotational connection is always present between the three bottom elements MBE, SBE and the side wall elements SWE adjoining them. The connections of the floor elements realize the connection of the three packets to one another in each variant. It is further to be noted that in these variants of the luggage box 100, no rotational-translatory connections are required.The different variants of these figures differ from one another by the following properties:various combinations of connections between the wall elements,rotational connection between the central base element MBE and the central wall elements MWE,different connections of the diagonal wall elements DWE to the wall and bottom elements adjoining them, including to the side wall elements SWE shown at a distance from one another,forming axle offsets on both sides between the central base element MBEand middle wall elements MVE according to the description of FIG. 4.In contrast to the previously described figures, the embodiments illustrated in FIGS. 10A, 10B, 11, 12, 13, 14 always have divided diagonal wall elements DWE, which are connected in different ways to the adjacent wall elements. The outer diagonal parts ADT are always designed as right-angled isosceles triangles, so that the angle of the inner diagonal part IDT adjoining the base element is always also 45°.Furthermore, all wall elements are connected to the respectively adjoining wall element, so that the wall running around the box bottom is self-contained. These figures therefore only represent variants in which folding apart and collapsing is possible when the wall is closed.In none of the figures mentioned, the inner diagonal part IDT, which always adjoins the transverse side of the side base element SBE, has a connection to the latter, since this is not absolutely necessary and is therefore dispensed with. Optionally, however, a detachable connection is possible, which is detached during the translatory displacement of an element of the diagonal wall element DWE. A rotational connection is possible in such a case if it allows the required translational displacement on the diagonal wall element DWE.In all the variants shown, the central wall elements MVE are connected to the central base element MBE in a rotational manner. In addition, the two-sided axle offsets used for folding over between the middle base element MBE and middle wall elements MVE are formed in all variants according to the description of FIG. 4.FIGS. 10A and 10B differ in the different widths of the side floor members SBE. In FIG. 10B, they are formed wider than in FIG. 10A, whereby the adjacent inner diagonal part IDT is trapezoidal.In addition, the different variants of these figures differ from one another by the following properties:various combinations of connections between the wall elements,different connections of the diagonal parts IDT, ADT of the diagonal wall elements DWE to one another and to the adjoining central wall elements MWE and those illustrated at a distance from one anotherSide wall members SWE.List of reference characters100 Luggage box 101 Rotational connection 102 Translational connection 105 Horizontal package 106 Vertical package 110 Composite parts, spring elements 120 Passage 130 Holding device 140 Handle 150 Bent portion 151 Lower edge 152 Upper edge 160 Toothing 170 Connecting means, Nubi 320 Bicycle rack 321 Support surface 322 Struts 410 Fold-over 500 Bicycle F Direction of travel of the bicycle MBE Central floor element SBE Lateral floor element MWE Central wall element SWE Lateral wall element DWE Lateral wall element IDT Inner diagonal part ADT Outer diagonal part ML Center line α Angle of fold-over dR, dL Axis distances to the left and right dP Wall thickness, Panel thickness A1 Height of the middle wall member S1 Length of the side wall member M1 Width of the middle bottom member

Claims

Luggage box (100) for a bicycle, designed for folding together packages connected to one another, containing a horizontal package (105) and two vertical packages (106) extending laterally therefrom in the vertical direction, comprising the following components: - a box base, comprising a rectangular central base element (MBE) and two rectangular side base elements (SBE) arranged on both sides of the central base element (MBE), wherein the base elements each have two longitudinal sides and two transverse sides, - wherein the central base element (MBE) is designed for horizontal fastening on a bicycle luggage carrier (320), - wherein a first longitudinal side of each of the two side base elements (SBE) is connected to a respective longitudinal side of the central base element (MBE), two rectangular side wall elements (SWE) having two longitudinal sides and two transverse sides, wherein one longitudinal side each of the side wall elements (SWE) is connected to the second longitudinal side of a side base element (SBE) opposite the first, - wherein the longitudinal sides of the base elements have corresponding lengths, and - wherein the longitudinal sides of the side base elements (SBE) are rotationally connected (101) to the longitudinal sides of the central base element (MBE) in such a way that the side base elements (SBE) can be pivoted relative to the central base element (MBE), - wherein the longitudinal sides of the side wall elements (SWE) are rotationally connected (101) to the longitudinal sides of the side base element (SBE), the side wall elements (SWE) being pivotable relative to the side floor element (SBE), characterized in that the luggage box (100) further comprises: - two rectangular middle wall elements (MWE) having two longitudinal sides and two transverse sides, wherein one middle wall element (MWE) is rotatably connected (101) by one of its transverse sides to one transverse side of the middle floor element (MBE) in such a way that the middle wall elements (MWE) are pivotable relative to the middle floor element (MBE), - four rectangular diagonal wall elements (DWE) each having two longitudinal sides and two transverse sides, The lateral sides of each of which, for forming the box wall comprising the box bottom, are connected to a longitudinal side of a central wall element (MWE) and the second longitudinal side opposite the first longitudinal side is connected to a transverse side of the lateral wall element (SWE) in one of the following ways: rotational (101) or rotational-translatory (102) or by means of releasable connecting means, - wherein one of the transverse sides of the diagonal wall elements (DWE) is not connected to a transverse side of a lateral base element (SWE) or is connected in one of the following ways: rotational (101) or rotational-translatory (102) or by means of releasable connecting means (170).Luggage box (100) according to claim 1, characterised in that at least one of the diagonal wall elements (DWE) is formed in two parts, wherein - at least one of the two partial elements of a diagonal wall element (DWE) has the shape of a right-angled isosceles triangle, the first leg of which forms that longitudinal side of the diagonal wall element (DWE) which is connected to the transverse side of the side wall element (SWE), the second leg of which is part of the upper edge (152) of the wall of the luggage box (100) and the base of which forms the division of the diagonal wall element (DWE); This sub-element is referred to below as outer diagonal part (ADT) and the associated second sub-element as inner diagonal part (IDT) - for each diagonal wall element (DWE) of the luggage box (100), at least one of the connections from the following list is formed rotationally-translationally (102): transverse side of a side wall element (SWE) / longitudinal side of the outer diagonal part (ADT) adjoining thereto, inner diagonal part (IDT) / outer diagonal part (ADT) of a diagonal wall element (DWE) along its division, longitudinal side of the middle wall element (MWE) / longitudinal side of the inner diagonal part (IDT) adjoining thereto, - the remaining second and third connections from this list are formed rotationally (101) or rotationally-translationally (102).Luggage box (100) according to claim 2, characterised in that all diagonal wall elements (DWE) are formed in two parts and all wall elements are connected to one another in a rotational (101) or rotational-translatory manner (102), so that these form a wall which is closed in itself.Luggage box (100) according to one of the preceding claims, characterized in that the axes of rotation of rotational connections (101) and / or rotational-translatory connections (102) of the base elements, of the side wall elements (SWE), of the middle wall elements (MWE) and of the diagonal wall elements (DWE) are formed in the elements respectively connected to one another and / or in the surface of at least one of the elements connected to one another and / or on the surface of at least one of the elements connected to one another.Luggage box (100) according to one of the preceding claims, characterized in that at least one of the rotational connections (101) and rotational-translatory connections (102) is realized by means of a rod axis.Luggage box (100) according to any one of the preceding claims, characterised in that said elements of the luggage box (100) are plate-shaped, with a plate thickness dP in the range from 2 to 30 mm.Luggage box (100) according to one of the preceding claims, characterized in that the underside of at least one side floor element (SBE) in the folded state has an angle α, with 65° ≤ α ≤ 115°, measured with respect to the horizontally situated underside of the central floor element (MVE).Luggage box (100) according to one of the preceding claims, characterized in that the two axes of the rotational connections (101) and / or rotational-translatory connections (102) along the left longitudinal sides of the central base element (MBE) and a central wall element (MVE) adjoining the latter have an axial distance dL, and the two axes of the rotational connections (101) and / or rotational-translatory connections (102) along the right longitudinal sides of the central base element (MBE) and a central wall element (MVE) adjoining the latter, which are situated opposite the left longitudinal sides, have an axial distance dR, wherein dL and dR are each greater than half the sum of the wall thicknesses dP of the two elements connected to the respective rotational axis and less than or equal to said sum, Additional amount of 50 mm, measured in the plane of the surface of the central floor element (MBE).Luggage box (100) according to one of the preceding claims, characterized in that composite parts (110) are formed and arranged between the floor and / or wall elements in such a way that they assist the folding and / or the folding apart of the luggage box (100) and / or the folded-together and / or the folded-apart state of the luggage box (100) can be fixed by means of the composite parts (110).Luggage box (100) according to claim 9, characterised in that the composite parts (110) are spring elements which are arranged between the longitudinal sides of the central floor element (MBE) and the respectively adjacent side floor elements (SBE) in such a way that their restoring force fixes the position of the vertical packs (106) and / or which is arranged between the central floor element (MBE) and the adjacent central wall elements (MWE) in such a way that their restoring force assists the folding apart of the luggage box (100).Luggage box (100) according to one of the preceding claims, characterized in that a space is formed between a side floor element (SBE) and the adjacent side wall element (SWE) in the folded state of the luggage box (100), for receiving the diagonal wall element (DWE) adjacent to the side wall element (SWE), in that the wall of the side wall element (SWE) comprises a bevel (150) in the direction of the centre line (ML) and the axis of rotation of the rotational connection (101) of said two elements is formed on the longitudinal side of the bevel (150).Luggage box (100) according to one of the preceding claims, characterized in that the length of the longitudinal sides of the central wall elements (MWE) and the length of the longitudinal sides of the diagonal wall elements (DWE) are less than or equal to half the length of the longitudinal sides of the central floor element (MBE).Luggage box (100) according to one of the preceding claims, characterized in that the luggage box (100) has, at least on one of its sides, holding devices (130) for hanging a bicycle bag, wherein the holding devices (130) are arranged on the longitudinal sides of the central floor element and / or of the central wall elements (MWE).

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