EP2921070B1 - Soft shell trolley suitcase - Google Patents

Description

The present invention relates to a trolley soft-shell case with individual features of claim 1.

For some time, pieces of luggage or suitcases have been designed that can also be rolled, for example so-called trolleys, which usually have hard shells and are designed as hard-shell cases. Typically, two trays make up the case, with each tray providing a certain amount of packing. The shells can be connected to each other, for example, by means of a circumferential zipper. A bilateral Bepacken is possible by opening the zipper and unfolding the shells. Such trolley luggage pieces have on an underside a plurality of rollers, in particular two or four rollers. Most of these pieces of luggage also have a telescopic rod with a handle on which these pieces of luggage can be pulled or pushed. For hard case cases, the rollers can either be on one or both shells be supported and stored, and even with bulky suitcases can be ensured by means of the shells, a good structural rigidity. Impacts or impulses can be transmitted from the rollers to the respective shell (in particular of two rollers on one shell each) and damped in the entire case structure. The shells can each provide a support bearing for the rollers or at least one support structure for a respective roller bearing.

There are also various luggage with wheels available, which are at least partially made of soft material, especially soft upper. These pieces of luggage then have one or more "soft pages". Such soft wall suitcases or soft shell cases have a hard shell or hard structure, which is also provided on a lower edge or underside of the suitcase, wherein the two rollers are supported on the shell. The soft-shell cases are not as bulky as hard-shell cases. The soft-shell cases can be pulled by means of the two rollers, after they have been tilted in an inclined position, so that the soft-shell case can be pulled by a traveler behind him. A sliding or turning the case is hardly possible with only two roles. In the case of a soft luggage item, a large number of criteria must be observed. On the one hand, any rigid elements or shells must be provided so that the soft luggage in a vertical arrangement or when rolling is torsionally rigid, on the other hand, hard shells or plates should be avoided if possible, because they adversely affect the weight or flexibility or variability in packing or on the handling.

Out DE 20 2007 013 485 U1 a trolley suitcase is known, with four supported on the front and rear of the suitcase roles.

Out US 5,522,487 a soft shell case is known which has four supported on the underside of the case rollers.

From the WO 03/075703 A1 is a provided with roles suitcase made of a textile material, which is partially provided with frame parts.

It is an object of the present invention to provide a simple to handle, in particular easily packable, trolley soft-shell case with a high structural strength, in particular torsional stiffness, while rolling. In particular, the object is also to provide a trolley-soft shell case, in which by a simple structural design with the least possible number of components, an advantageous load distribution can be ensured on a respective part of the suitcase, in particular both a front part and on a back part, especially when rolling the suitcase. The object can also be formulated by the goal of making a good compromise of a simple structure, a high torsional stiffness or tracking accuracy and an easy or practical handling, in particular flexibility in rolling or even when packing.

This object is achieved by an article according to claim 1. One aspect of the present invention relates to a trolley soft shell case with a bottom on which the soft shell case is rollable, wherein the stabilizing or supporting structure of Weichschalenkoffers essentially by a structurally rigid floor structure in the front part and in Back part and a stabilizing shell is formed on the back, wherein the front part, apart from the bottom structure, is formed of a soft material .:

In this way, a soft shell case can be provided, which can be parked or rolled in a simple manner as "vertical luggage" (on the underside), be it in an upright vertical or vertical state on four (steering) rollers, or in one more or less severely tilted state even just two of the four roles.

By supporting the rollers on both parts, it is possible to provide a soft shell case which can be attached to a bottom, e.g. has four (steering) roles, so that the soft shell case can be stored on all four roles and can also be pushed or rotated without having to be tilted. This trolley soft luggage is preferred - as well as many hard-shell trolleys - formed in two parts. A part may be a e.g. hard shell and / or a structurally rigid frame, and the other part may e.g. be formed essentially of soft material without any shell or any frame. Advantageously, the two parts are at least approximately the same size, so that a two-sided loading is facilitated.

In other words, by providing support on both parts, a 4-roll soft luggage trolley with two suitcases which can be packaged on both sides can be provided. So there are also rollers on a soft part of soft upper arranged so that the load of the luggage can be easily absorbed when rolling the suitcase. It should be used on the soft part no hard shell as a support structure. Not least for particularly voluminous suitcases, this offers advantages in handling. In contrast, trolley soft luggage has been provided either only with two roles, or with four roles, all of which are usually supported on a single large part or compartment, in particular on a hard shell of the back, or alternatively on a plurality of stiffening elements of the Back part, if the back does not have a hard shell. The Front case half then consists only of a narrow lid compartment. On the lid compartment, which has no rigidity or stability, no rollers can be supported for reasons of space alone. The cover compartment of this soft-shell case is therefore very narrow because an interface between the two parts, in particular a zipper, must be guided along the outer edge in the edge region of the narrow side of the case. In other words, the back must provide the entire bottom so that the four rollers can be placed on the bottom so that the case does not tip over.

With this trolley soft luggage the goal can be achieved, a good compromise of the structural rigidity required for rolling or pulling or pushing on the one hand and the advantages associated with soft material, e.g. flexibility or versatility of packing, on the other hand.

A "soft-shell case" is preferably to be understood as a suitcase which is formed at least partially from soft material, in particular with a front part, which to a large extent is made of soft material. Preferably, the front part is designed to a maximum proportion of soft material and has fewer or smaller structurally rigid components than the back. Preferably, in the soft shell case according to the invention, any structural stiffening elements are provided only where it is absolutely necessary for supporting the rollers and for torsional rigidity. The soft-shell case preferably has at most one half shell on one of the main sides or a frame on opposite narrow sides. The half-shell is preferably formed as small as possible or as minimalist as possible, and may also have recesses in which soft material can be arranged. For example, the soft-shell case has a half-shell, which does not extend at any of the narrow sides, but only on the main side and possibly also on the underside. Optionally, a bottom structure arranged in the area of the underside may also be provided, which may be e.g. additionally also extends along a short section in each case from opposite narrow sides.

As a "bottom" is preferably a side of the case to understand on which the suitcase can be parked and rolled or moved. The underside is preferred disposed opposite to the top and is one side of six sides of the suitcase and is bounded by two opposite major sides and two opposite narrow sides.

The "front part" is preferably to be understood as meaning one of two main parts of a two-part suitcase, the front part preferably being essentially made of soft material (apart from a stabilizing structure on which the rollers can be supported), and preferably a plurality on the front part of compartments or shelves (in particular made of soft material) are provided. The front part is preferably a part which has greater flexibility and variability and a lower dead weight than the back part.

As "back" is preferably to understand one of two main parts of the case, which stiffen the case structurally as much as necessary, in particular such that an additional stiffening on the front part is no longer required or at least not required to the same extent as the back , The rear part is preferably set up to receive a telescopic rod and to store it in a dimensionally stable component, in particular a half shell. Optionally, only a handle or handle is arranged on the back, which is preferably connected to a stabilizing structure of the back part.

The front part and the rear part are preferably connectable to one another on at least three sides of the suitcase circumferentially provided interface, in particular a zipper, the interface preferably at least approximately centrally (relative to the two main sides) on the (respective) narrow side and at the bottom and the top is arranged respectively. Preferably, the front part and the rear part in each case partially form the underside and partially an upper side of the soft-shell suitcase arranged opposite to the underside.

The rear part may be at least partially designed as a structurally stable half-shell or frame, in particular in conjunction with an integrated into the shell linkage for pulling the suitcase. The front part is preferably designed without hard shell. Preferably, the front part is formed essentially of soft upper material, wherein An inner side of the front part may additionally be provided with any compartments, textile layers or zips. On the front part of a great flexibility and variability can be achieved, especially in conjunction with a low weight. On the front part, the soft and flexible upper material or soft material can be led down to the ground. This provides maximum flexibility and use of the benefits of a soft shell (soft area).

As "main page" is preferably to be understood by one of two opposite sides, on which the case can be stored in an unfolded state. The two main pages can also be described as front and back. A respective main page is preferably formed in each case completely from either the front part or the back part.

As a "narrow side" is to be understood preferably one of two opposite sides of the suitcase, which each connect the main sides together and differ from a bottom and a top. The width of the narrow side or the depth of the case defines the packing volume of the suitcase. A respective narrow side is preferably formed partially in each case both from the front part and from the back.

A "soft material" is preferably an upper material or a material for inner lining, which is deformable and does not necessarily have a predefined shape, but which can be flexibly arranged and which can be surrounded or stretched, for example, by a circumferential stiffening element or arranged inside the stiffening element can be. From the soft material, for example, compartments or pockets outside or inside the case may be formed. The soft material can also be largely inelastic, so that it remains in the deformed state after deformation. This allows, for example, to stow the case to save space. However, the soft material may also adapt to certain objects that are to be stowed in the suitcase. According to a variant, the soft material consists of coated plastic fiber fabric, wherein a coating is preferably provided at least also on the inside of the soft material. The coating is preferably always provided on the inside and optionally also on the outside.

Preferably, a telescopic linkage is integrated into the rear part, in particular a one or two-arm linkage. By means of the linkage, the trolley soft-shell case can be handled in an ergonomic way. The linkage preferably has a handle, which is arranged in a pushed-together state of the linkage on an upper side of the suitcase. The top is located opposite the bottom. Depending on the size of the case, a handle may be provided, in particular with a fixed or folding handle extension.

Preferably, both the front part and the rear part are each surrounded by a more or less dimensionally stable circumferential stiffening element, in particular a ring, steel ring, hoop, tire or reinforcing edge, in particular at one / the interface to the other part. The stiffening element can provide the respective part in a predetermined geometry, in particular in the region of the interface. The circumferential stiffening element can be elastic. The stiffening element may include closing the suitcase or connecting the two parts, e.g. with a zipper. Preferably, the stiffening element is rectangular in each case.

Preferably, the rollers have a few centimeters high in the height direction guided edge protection. The edge protection can be connected in the interior of the Weichschalenkoffers via in each case a counter-plate with the underside of the back part, in particular with the underside of a half-shell of the back part, as well as with a bottom structure of the front part. The edge protection can be e.g. be provided in connection with a roller receptacle or by a support portion of a roller receptacle, as described in detail below.

According to an advantageous embodiment, the front part and the rear part each provide at least 20%, preferably at least 30%, of an absolute packing volume of the soft-cup case. Such a soft-shell suitcase or soft-walled suitcase with a significant packing volume both in the front part and in the back part preferably has an arrangement of two out of four rollers on the front part and the other two rollers on the back part. Preferably, the front part and the back part are at least approximately the same size or voluminous. This can be loads and forces of the case contents evenly distributed distributed to all roles, even if the soft shell case should not be designed to be particularly stiff compared to hard-shell cases or only small or few stiffening structural components or components.

The size ratio between the front part and the back part can be chosen so that both the front part and the back part has a considerable share of the total packing volume. In particular, the volume of the front part and the back part can each amount to up to 50% of the total volume of the Weichschalenkoffers, or even more. According to a variant which is advantageous for the handling, each part has approximately the same volume.

The size ratio between the front part and the back part can also be chosen such that the front part and the back part have at least approximately the same depth, or that the depth of the one part is maximally limited by e.g. 20% to 50%, preferably at most 30% deviates from the depth of the other part. In this way, the packing can be simplified, especially in a variety of smaller items.

According to an advantageous embodiment, the soft-shell case has four rollers arranged on the underside of rollers, which are at least partially, preferably all formed as castors. This provides a high flexibility in the handling of the case. The case can be rolled on the underside in any direction. In contrast, soft-shell cases were previously mostly equipped with wheels, which can not be pivoted about its own axis, or possibly with castors, all of which are supported only on the back. In these suitcases, the back part must then be formed significantly larger than the front part, in particular with a bottom which almost completely forms the underside of the suitcase.

As a "steering role" is preferably a role to understand, which can also be pivoted about its own axis and allows movement in all directions of a plane. A steering roller thus has not only a roll axis, but also a particular orthogonal to the roll axis arranged pivot axis. A steering wheel can thereby also comprise a plurality of individual rollers or wheels, in particular two rollers arranged on the same roll axis.

According to an advantageous embodiment, at least one of the rollers is laterally supported on one of the narrow sides of the front part. This can provide a high tracking stability in a lateral rolling direction or a rolling direction at an angle between 0 and 90 ° to one of the sides of the case. The lateral support according to the invention can also be realized in a suitable manner in conjunction with a stabilizing soil structure. The lateral support on the narrow side of the front part also allows an expedient structure or an advantageous geometry of a stabilizing structure for supporting the rollers.

As a "lateral support" is preferably a support to understand in which forces can be transmitted in a plane which is aligned at least approximately parallel to the pivot axis of the steering roller. In the case of a lateral support, a force transmission can take place on a side surface of the case standing on the underside, that is on a narrow side or on a main side. A lateral support preferably corresponds to a support in a plane which is aligned at least approximately orthogonal to the underside of the suitcase. A lateral support may be described as a support that is orthogonal to a "frontal support" on the underside.

The front part has a stabilizing structure arranged on the underside and preferably also on at least one of the opposite narrow sides, a bottom structure on which the respective roller is supported on the underside on the underside. This arrangement allows the surface forwarding of forces and shocks between the respective narrow side and a stiffening component of the suitcase, in particular on the underside. The soil structure can absorb the forces and impacts. By means of the soil structure, the rollers can be connected in a particularly robust manner with the front part. Apart from the soil structure, further stiffening components are not necessarily required. Consequently the front part is, apart from the floor structure (and optionally also a stiffening element) substantially made of soft material.

In this case, the front part of a maximum softness and thus flexibility can be ensured, and the dimensions of a floor structure or reinforcing structure for supporting the rollers can be reduced to a minimum, without losing stability or directional stability in guiding / rolling the Weichschalenkoffers. The soft-shell case, thanks to the floor structure, is sufficiently warp-resistant to withstand even large dimensions or with a large volume, e.g. in the range of more than 50 liters, to be used as a "vertical piece of luggage". The floor structure is provided in connection with the lateral support of the rollers, in particular on narrow sides, as a torsion-resistant structural component. The rollers or roller mounts may be attached directly to the floor structure, e.g. screwed, riveted, or be infected form-fitting.

The stabilizing structure or bottom structure is preferably arranged both on both opposite narrow sides of the one part, in particular of the front part, and on the underside of the part. Preferably, the extent of the soil structure in the height direction along the narrow sides in the range of only 5cm to 20cm, more preferably 7cm to 17cm, especially 10cm to 15cm, depending on the size of the suitcase. In this way, a sufficiently large area can be provided, on which a flat lateral support of the respective roll can take place. At the same time, the area above the floor structure can be largely freely designed and shaped. By means of the soft material used, e.g. Outer pockets or protruding convexly curved portions are formed at many different positions on the case surface. The comparatively small dimensions or dimensions of the floor structure in the height direction allow for a high degree of flexibility, be it in the design of different suitcase types, either when packing.

Such a stabilizing structure or soil structure with comparatively small dimensions allows support of the rollers in conjunction with maximum flexibility. Other stiffening components are not necessarily required. According to one variant, one of the parts has only one such stabilizing one Soil structure on, and possibly still a circumferential stiffening element. In other words, the stabilizing structure or bottom structure arranged on the underside can be provided as the only dimensionally stable component.

According to a variant, the front part has at least two sections of different depth, wherein the depth in the area of the floor structure is smaller than in a section above the floor structure. In this way, a comparatively small, handy case with a comparatively small area of the underside can be provided, in which the packing volume (optionally as required) can be increased by using an additional volume above the floor structure. The additional volume can be provided thanks to the soft material.

As a "soil structure" is preferably a preferably one-piece or a multi-part dimensionally stable structural component to understand, which is arranged on the bottom and extending in a height direction at most to a small extent, ie only over a small portion of the entire height of the suitcase. The floor structure is arranged both on the front part and on the back part, so that it is also possible to speak of a two-part floor structure. The floor structure can also form the complete underside of the suitcase or extend over the entire underside of the suitcase. The soil structure (the structural component) is torsionally rigid and preferably largely inelastic. Also, for a plastic deformation, the soil structure is not provided. The floor structure preferably defines the geometry of the underside of the suitcase, at least one of the two parts of the suitcase. Preferably, the floor structure (at least one floor structure arranged on the front part) extends in a flat manner in no more than three planes, in particular two planes corresponding to the narrow sides and one plane corresponding to the underside.

A three- or four-sided base pan, which is arranged on both the underside and on the main side and the opposite narrow sides, is not required. In particular, no additional shell is required on the main side. The floor structure can therefore be designed as a part with a simple geometry, which can be produced in a simple (in particular cost-effective) manner. Due to the simple geometry, in particular thanks to fewer edges or protrusions, For example, the floor structure can be easily designed constructively and with regard to maximum loads or safety factors. The force flow or potential force flow paths within the soil structure can be easily predefined or predicted.

The soil structure may e.g. can be made of a substantially flat, flat part, which can be bent or shaped for molding or adaptation to a particular suitcase geometry according to the contour of the underside of the suitcase / can be. The support of the rollers can be carried out on the sections of the floor structure, which are arranged on the opposite narrow sides and the bottom. This also makes it possible to provide soft upper on the entire main side, in particular over the entire height of the main side, so that the case can be packed in a flexible manner. The upper material may be provided to the bottom and be connected in the region of the bottom or at one edge to the bottom with the bottom structure and / or the bottom. This also makes it possible that the upper material can be swelled or stretched in the depth direction on the main side and can adapt depending on the packing state of the suitcase. A lateral support on the soil structure on the front part therefore also provides the advantage of a slightly increased packing volume, in particular 2 - 3% additional packing volume.

With a floor structure extending on opposite narrow sides of the front part, the rollers of the front part can be supported laterally on the opposite narrow sides on the floor structure, whereas the rollers of the rear part on a floor structure and / or shell optionally supported on the main side or on the narrow sides can be. This allows for a simple structural design, a particularly stable arrangement with direct power transmission between the soil structure and the rollers. In a lateral support on the narrow sides of the front part of a shell of the rear part can be advantageously used for supporting the rollers of the rear part on the main page, and at the same time a laterally offset support of the rollers can be realized. The arrangement or support on the main side of the rear part also provides advantages in the handling of the case, in particular an effective edge protection when pulling the case.

The support on the narrow sides on the floor structure also provides the advantage that the case can be stably stored even when rolling sideways in a width direction of the suitcase (pulling or pushing on all arranged on the bottom rollers). Supporting forces can be transmitted to far outwardly arranged surface sections, namely on the narrow sides, and damped in the floor structure. The case is thus particularly stable to tilting during lateral rolling and also has a high level of stability, e.g. with regard to storage on a treadmill / luggage belt. The support far (completely) outside on the outer lateral surface of the case on the narrow sides also provides the advantage that supporting forces can be transmitted to far outwardly arranged surface portions.

The support on the narrow sides of the floor structure also has the advantage that when sliding sideways jolts and impulses "frontally" in relation to the direction of movement or rolling direction of the case can be introduced into the case, so that no shear forces or at most only small shear forces of the Rollers on the front part are introduced into the suitcase. Because if the rollers were supported only on the underside, then shear forces could not be damped on one of the narrow sides during lateral rolling. Reducing shear forces during lateral pushing or pulling of the suitcase is advantageous, in particular with regard to the comparatively soft structure of the soft-top case.

According to an advantageous embodiment, both the front part and the rear part have a stabilizing structure arranged on both the underside and on the opposite narrow sides, in particular a bottom structure on which the respective roller is supported. In this embodiment, a stabilizing shell or any other stabilizing structural member is not necessarily required. The stabilizing structure of the case may be provided by a two-piece, divided bottom structure which is disposed on both parts. Depending on the manner in which the case is to be rolled, the floor structure may also extend more or less far up in the vertical direction in the direction of the upper side of the case on the rear main side and / or on the opposite narrow sides.

The soft-shell case has a (two-part) floor structure divided into two floor structure parts, which is provided both on the front part and on the rear part, wherein at least two of the rollers are respectively supported on the respective floor structure part. The two-piece floor structure allows a simple construction of the case in conjunction with a high flexibility and a high proportion of soft material.

According to an advantageous embodiment, the floor structure is divided by a zipper, in particular in the middle in two at least approximately equal floor sections on the bottom. In this way, the case can be handled in a simple manner (in particular packed), and at the same time a high torsional stiffness can be ensured, in particular by means of a zipper, which has the narrowest possible zipper tape.

The rear part has a shell or a frame which stabilizes the structure of the soft-cup case, in each case made of dimensionally stable material, on which the respective roller is supported directly or indirectly via a support element fastened to the shell. The support element may be part of a floor structure, and the floor structure may be connected to the shell or the frame so that it can not be twisted so that the respective roller can optionally be supported on the support element or on the shell or the frame. The stabilizing shell increases the torsional stiffness of the case and is particularly useful in conjunction with a telescopic linkage for pulling the case. A frame can optionally be used in a convenient way in conjunction with a lateral support of the rollers on the narrow sides.

The stabilizing shell is disposed on the back and extends along the bottom and along the main side of the back. In this case, a floor structure is preferably also arranged in each case on the opposite narrow sides of the front part. With this arrangement, the rollers can be supported directly on the floor structure and directly on the shell. The support of the rollers can also stiffen the soil structure and vice versa. Other stiffening components are not required. In this arrangement, by means of the support of the rollers (in particular without further components) on the main side of the rear part, an effective edge protection can also be provided, for example with regard to curb edges. The support of the rollers of the back on the main side is also useful in terms of a linkage. The linkage also preferably acts on the stabilizing shell on the main side. Thus, a power transmission can be done directly between the rollers and the linkage, without the power flow must be deflected over several sides or surfaces of the suitcase, especially when pulling the case over obstacles such as a curb. The supported on the main side of the back rollers can particularly effectively initiate the evoked when pulling the case on these two roles forces and shocks in the case.

The two supported on the narrow sides of the front part roles are completely or largely relieved when pulling the case on the main page and float in the air. The two supported on the narrow sides of the front wheels, however, can initiate the lateral forces pushing and pushing the case on all four roles, the forces and shocks caused in the case, especially at reduced shear forces. In other words, the lateral support contributes to narrow sides, especially in that the suitcase can be laterally rolled and guided in a useful manner. A user can e.g. Use the linkage to push the case. The shocks exerted when pushing in particular on the front in the direction of sliding narrow side of the case can be effectively transferred from the front in the sliding direction role at significantly reduced shear forces on the narrow side. A twisting of the case can be largely avoided.

According to an advantageous embodiment, the rear part has a frame, on which the respective rollers are supported, wherein the rear part also has a soft area. In other words, the back does not necessarily have to be designed as a dimensionally stable half-shell. Rather, both the front part and the back part can be designed to a significant proportion of soft material. The frame on the back can be provided, for example, circumferentially on the narrow sides, the top and the bottom of the back and optionally also a / the bottom structure of Form back or be associated with it. The frame can also form the main side of the rear part at least partially in an edge region to the respective narrow side.

According to an advantageous embodiment, the soft shell case on the front part (or optionally also on the rear part) on a bottom structure in the form of a bottom profile with a U-shaped cross-sectional profile. In such a bottom profile forces and pulses can be transmitted both on the underside and on the narrow sides in an expedient manner. In particular, an impulse can also be transmitted and attenuated from one narrow side via the lower side to the opposite narrow side between two rollers. The two lateral, opposite sections of the soil structure can support each other. The U-shaped bottom structure may have radii of curvature between a bottom portion and the respective lateral portion or leg, which have a certain amount depending on the requirements. Preferably, the opposite radii of curvature are the same size. The radii of curvature can each be so small that results in a substantially rectangular (rectangular) box section. Preferably, the main side of the front part is completely formed of soft material, so that a high flexibility in the design of the soft material area or soft area and / or a high variability in the packing is feasible.

According to one variant, the floor structure is arranged only on the opposite narrow sides and on the underside, wherein a floor structure provided on the front part is a one-piece floor profile. A one-piece floor profile can also be a part of an originally one-piece floor structure, which is / were divided at the interface between the front part and the rear part.

As a "soil profile" is preferably a soil structure in the form of a component with a given geometry of one or more flat sections to understand. The bottom profile can also be formed from a single largely planar, initially only two-dimensionally extending material portion which is bent or biased into a specific geometry, in particular in a U-shape. Preferably, the soil profile is plate-like. The bottom profile may be formed of a plate-shaped material which is plastically or elastically deformable. The bottom profile may for example have a rectangular basic shape and be bent at the free ends in each case, so that there is a U-profile in cross section.

Preferably, the bottom profile extends completely in the width direction over the entire width of the suitcase along the bottom and in each case in sections in the height direction along the opposite narrow sides. Preferably, the bottom profile extends over the entire width of the respective narrow side.

The soft-shell case has a two-part bottom structure, which forms both at the front part and at the rear part at least approximately completely the underside of the Weichschalenkoffers, and which is adapted to the end-side support of the respective roller on the underside. As a result, a lateral support in conjunction with an end-side support on the same structural component take place on the respective part, which may be advantageous in terms of a symmetrical distribution of forces.

According to an advantageous embodiment, the bottom structure extends from the underside at least 5 cm, preferably at least 7 cm, more preferably at least 10 cm in the direction of an opposite to the underside arranged upper side of the Weichschalenkoffers. In this way, a large attack surface can be provided, at which forces can be introduced from the rollers in the front part.

According to an advantageous embodiment, the soft shell case is in two parts and hinged and packaged on both sides in the unfolded state, wherein the front part and the back at least approximately the same depth, or wherein the depth of one part a maximum of 20% to 50%, preferably at most 30% of the Depth of the other part deviates. As a result, the front part and the back part can be stored side by side on the ground and packed, in particular without tensions in the soft shell case caused. The luggage load can be distributed to both parts, in particular each about half to a respective floor structure part.

According to an advantageous embodiment, the front part and the rear part are connectable to each other by means of a zipper, wherein the zipper is passed through the floor structure and subdivides the floor structure, and wherein the zipper is preferably provided on at least three sides of the soft shell case, in particular circumferentially. The zipper facilitates handling and can also ensure an at least three sides circumferential connection between the two parts.

According to an advantageous embodiment, the zipper is a zipper tape with a maximum total width of a maximum of 40 mm, preferably a maximum of 35 mm, more preferably a maximum of 33 mm, in particular between 30 and 33 mm. In particular, with a width below 37mm, 36mm or 35mm, a particularly high torsional rigidity can be ensured. At under 35mm, a particularly good compromise between high torsional rigidity and a smooth, robust zipper can be ensured. In particular, it can be ensured that the bottom structure of the front part and the underside, in particular the half shell, of the back part can be arranged as close as possible next to each other. This can prevent a distortion of the underside of the Weichschalenkoffers and thus a change in the relative position of the rollers to each other. Individual soil structure parts can not easily move relative to each other. As a result, a high tracking stability when guiding or pulling the Weichschalenkoffers be ensured.

According to an advantageous embodiment, at least two of the rollers are each supported on one of the narrow sides of the front part and at least two of the rollers are each supported on one of the narrow sides of the rear part. In this variant, therefore, at least four rollers are supported laterally. This can provide a particularly high stability in a side rolls. This arrangement may be useful, for example, in very wide suitcases, or in conjunction with a circumferentially arranged on the rear sides of the frame. In such a case, a torsionally rigid structure can already be provided by the frame and a bottom structure arranged on the front part, wherein optionally the frame can form a bottom structure of the back part in the region of the bottom side or a bottom structure or a bottom structure part can also be provided on the back part.

According to an advantageous embodiment, the rollers are laterally supported on at least one of the main sides as well as on at least one of the narrow sides, wherein the rollers are supported laterally offset in differently aligned planes, and wherein each roller is supported substantially exclusively in a single of the planes ,

As previously described, the lateral support provides good stability about a vertical axis of the suitcase, along which the suitcase extends in at least approximately vertical direction when the suitcase is stored as a "vertical luggage" on its underside. The case is relatively rigid regardless of a particular rolling direction, even if the case is formed essentially of soft material. As a result, a good compromise between self-weight, variability and appropriate handling can be achieved. The lateral support can ensure that a distortion and thus a poor tracking accuracy when driving the suitcase can be largely excluded. All rolls can also be guided in the same horizontal plane (at the bottom). Twists that would cause the case to drift while rolling can be largely excluded.

A laterally offset support on as many different side surfaces of the case in different (in particular at least approximately aligned perpendicular to the bottom) levels can ensure a high torsional stiffness even when rolling the Weichschalenkoffers on all four roles, especially in different (rolling) directions. Loads can be transferred from the rollers to multiple side surfaces in multiple differently aligned planes. It can e.g. the risk of a pulse being imparted to the case by the rollers in a particular direction leading to tilting of the case is reduced. By supporting in differently oriented levels, the tilt tendency can be reduced. This is particularly advantageous when pushing the case on all four roles, especially for slim, in a vertical direction particularly elongated suitcase geometries.

In other words, the offset lateral support in as many levels as possible is especially advantageous for suitcases that are mounted on four castors and in all Directions can be rolled. In these cases shocks or impulses are introduced when rolling the suitcase in several directions by the rollers in the case. It has now been shown that thanks to the offset support in differently oriented levels these shocks can be well attenuated and forwarded regardless of a rolling direction, even with Weichschalenkoffern. The staggered support can provide a torsion-resistant structure largely independent of the direction. As a result, the suitcase is also largely directionally independent of direction. The staggered support also has the advantage that the soft shell case or at least one of the front part and the rear part can be substantially completely formed of soft upper material.

One of the planes preferably corresponds to a plane in which the one main side is arranged. A further of the planes preferably corresponds to one or more planes in which the narrow sides are arranged. In this case, at least one of the rollers on the front part or on the rear part can be supported offset relative to the rollers of the same part or of the other part, so that the four rollers are supported at least on one of the main sides and at least one of the narrow sides. Preferably, two rollers are supported on one main side or on both main sides and two rollers on at least two narrow sides arranged in different planes.

Each of the roles is essentially based solely on one of the levels. As a result, the staggered arrangement can be realized, and it can be caused that forces and shocks necessarily have to be transmitted in different levels aligned.

Although it would also be possible to store each role at one corner of the suitcase "over corner" on two adjacent side surfaces of the suitcase side and support. But then, on the one hand, it could not be ruled out that forces and impulses will essentially only be transmitted in equally aligned levels. The case would therefore tend even when supported "over corner" in certain situations, for example, increasingly tipping. On the other hand, an attachment and support of the four rollers would then take place on eight surfaces, which is comparatively complicated. With a support "over corner" it would also be necessary to stabilize the respective part of the case To provide structure for attaching the rollers and for transmitting the forces and pulses, which is also provided on all side surfaces. However, such a three-dimensional stabilizing structure is particularly expensive to produce, especially if the three-dimensional stabilizing structure is to be preferably provided as a one-piece molding. Such a molding then requires a complex, expensive tool, especially for each corner. Alternatively, the stabilizing structure would have to be assembled and assembled from a plurality of individual parts or components, which also means extra effort. Furthermore, the position of the rollers would be fixed, namely exactly at a respective corner of the suitcase. A support "over corner" is therefore disadvantageous in terms of a simple construction of the case or a high degree of freedom in the design of the suitcase. Last but not least, a larger amount of material, especially plastic, would be required, which would increase the weight of the case (in particular by about 40 to 80 grams) and would have cost disadvantages, in particular due to a larger installation effort, eg due to additional attachment points.

The rollers are preferably supported in addition to the lateral support also frontally on the underside. According to a variant, the rollers are all also supported on the underside. As a result, the load of the suitcase from the bottom can be transmitted to the front side of the rollers. Shearing forces can be minimized. Lateral support can ensure structural rigidity. If the suitcase were only mounted on the front side on the underside, the suitcase would have a strong tendency to tilt during rolling or moving. Both the frontal and the lateral support can be e.g. also include any additional reinforcement or plate or liner, whether on the inside and / or outside of the case.

According to an advantageous embodiment, the rollers are laterally supported in at least three different levels. This type of support allows a torsion-resistant structure for the transmission of shocks and pulses largely independent of a rolling direction.

According to an advantageous embodiment, the rollers are laterally supported in at least two planes, each at an angle of at least approximately 90 ° to each other are arranged. The support in at least approximately orthogonal aligned planes provides good stability and can also be realized constructively in a simple manner, especially in a rectangular, cuboid basic shape of the suitcase. The support can be done, for example, by introducing forces laterally on a respective outer surface of the suitcase.

According to an advantageous embodiment, two of the rollers are laterally supported on a main side of the one part and two of the rollers are laterally supported on opposite narrow sides of the other part. This arrangement allows high structural rigidity when using simple components. The support is offset in three different planes, of which at least two are aligned differently. The support on the main side of the back piece provides e.g. a good stability when pulling the suitcase. The support on opposite narrow sides, however, provides good stability when moving sideways the case.

At least the respective laterally supported on a narrow side of the front part of the roller is attached to a roller receptacle having a substantially planar support portion which is arranged on the narrow side. The roller mount allows a connection of the roller with the respective side surface or with the / a soil structure.

As "role recording" is preferably a dimensionally stable component to understand, on which the respective role can be stored. The geometry of the roll receptacle preferably corresponds to the geometry of the outside of the suitcase, so that the roll receptacle can be fastened flat on the outside or can be integrated into the outside.

As "support portion" is preferably a dimensionally stable, at least approximately flat surface portion to understand, which is adapted to be verkuppelt with a side surface of the suitcase. The geometry of the support portion preferably corresponds to the geometry of the corresponding side surface of the case.

The roller mount preferably has a support, a support structure or a support section with a passage for a pivot axis of the respective roller. The support portion is preferably in the form of a substantially flat plate or shell, which can be brought to the underside of the suitcase flat to the plant.

The role recording can not only have a lateral support portion, but also have two lateral support portions, which are arranged at an angle not equal to 0 ° or not equal to 180 ° to each other. In particular, the roller receptacle may have a second support section, which is arranged "over the corner" relative to the first support section, in particular at least approximately 90 ° relative to the first support section. As a result, an edge of the suitcase can be enclosed by the roll receptacle, which on the one hand further increases the stability, and on the other hand facilitates the fastening or positioning of the roll receptacle on the suitcase surface. Also, more effective edge protection can be provided. However, the second support portion is preferably significantly narrower than the first support portion, so that the roller mount for power transmission is supported substantially only on one of the sides. This can ensure that the forces transmitted to the case by the rollers actually act on different levels. Preferably, the second support portion is at most 10% to 30% as wide as the first support portion, so that the roller support is indeed supported "on the corner", but substantially only on one side or on a surface in a single plane laterally. According to a variant, the (first) support section has an extension of at most 60 mm in a width direction transverse to the height direction, more preferably a maximum of 50 mm, particularly preferably a maximum of 40 mm. The width of the support portion is to be understood as a width of the support portion in an area above an interface or edge between a side surface of the suitcase and the underside. The width (extent transverse to the height direction) of the (first) support portion may be at least 20 mm, preferably at least 25 mm, more preferably at least 30 mm. This can ensure a flat support with comparatively low surface pressure, ie without high point loads. The widths described above can ensure good stability, for example in suitcases with a packing volume in the range of 40 to 100 liters, in particular in conjunction with the extent described below in the height direction.

According to an advantageous embodiment, two roller receptacles are connected to a / the bottom profile to a structural component, that the bottom profile together with the roller mounts and the support portions ensures a stiffening of the bottom. The roll receptacles may e.g. screwed to the soil structure or the soil profile or riveted thereto.

According to an advantageous embodiment, at least one of the rollers is fastened to a roller mount, which has a support structure for supporting the respective roller, which is connected by a radius to a support section of the roller mount. This allows for transmission of forces and pulses between the respective side surface and the bottom along a force flow path corresponding to the radius. Edges and concomitant stress peaks can be avoided. The radius favors a distribution of force flow in the differently oriented planes. A respective roller receptacle can essentially comprise the support structure and the support section, which are connected to one another by a radius or a curved section.

According to an advantageous embodiment, all roller receptacles of Weichschalenkoffers on the same radius. This allows the use of only one type or only two types of roller mounts, which further simplifies the construction or design of the case. The identical design of at least two of the roller seats or all four roller seats also allows a simple construction. In this case, e.g. an edge protection of a roll receiving serve as a lateral support portion at the same time. In an offset arrangement, an edge protection can be provided in several roll directions.

According to an advantageous embodiment, a bottom structure of the one part, in particular of the front part, has a bottom section and opposite side sections, one / the stabilizing structure, in particular shell or frame, of the other part, in particular of the rear part, a rear section and a bottom section and wherein a radius of curvature between the bottom portion and the respective side portion of the bottom structure at least is approximately equal to a radius of curvature between the back portion and the bottom portion of the stabilizing structure. This allows the use of the same type of roller take-up on both the front and the back.

According to an advantageous embodiment, the (first) support section extends from the underside at least 5 cm, preferably at least 7 cm, more preferably at least 10 cm in the height direction in the direction of an opposite to the underside arranged upper side of the Weichschalenkoffers. At this size, a sufficiently large area can be provided, through which the forces and shocks can be transmitted. Furthermore, an edge protection can also be provided by means of the support section.

According to an advantageous embodiment, all four rollers are formed as steering rollers and laterally supported by a roller mount with a support portion on the respective side of the Weichschalenkoffers. In this way, the connection between the roll receiving and the soil structure or the stabilizing shell can be done in the same way for all roles. The forces and impacts can be transferred to all four support points to a comparable proportion. This also contributes to a good load distribution and torsional rigidity, especially since no stress peaks occur on individual particularly heavily loaded roles. Rather, all four roles should be able to transfer the load to a comparably large proportion. Four castors have the advantage that the case can be freely moved or rolled in all directions. The castors can each align in the direction in which the case is to be moved.

According to an advantageous embodiment, an at least partially encircling stiffening element, on which the zipper acts, is arranged on the front part and / or on the rear part. The arrangement of the zipper directly on the stiffening element provides the advantage of a good stability of the Weichschalenkoffers. The at least one stiffening element can thereby be arranged in a middle region of the narrow side of the soft-cup case. Furthermore, the stiffening element allows the front part or the rear part to be easily accessible. When unfolding the Weichschalenkoffers the opening of the front part or the back part is then held by the stiffening element in the form.

Preferably, a stiffening element is arranged both on the front part and on the rear part, which is in each case completely circumferential, and on which the zipper attacks. The zipper can be used e.g. be connected to a textile section, in which the stiffening element is inserted. Preferably, the distance between the zipper (in particular individual chain links of the zipper) and the stiffening element is as small as possible, in particular smaller than 35 mm, as described above. In this way, in comparison with the stiffening element or with two stiffening elements, a comparatively high stability for soft-shell cases can be achieved.

According to an advantageous embodiment, the at least one stiffening element is arranged on an edge of the respective part, in particular along a zipper. By the stiffening element is only used directly at the interface to the respective other part, in particular on the zipper, the respective part, in particular the front part, need not have any further stabilizing frame structure. This increases flexibility in designing or packing the case.

According to an advantageous embodiment, a circumferential stiffening element in the form of a steel ring is arranged on the front part and on the rear part, wherein the stiffening elements are connectable by means of a zipper tape of a zipper, which preferably a maximum of 40mm, preferably 35mm, more preferably 33mm, especially between 30 and 33mm. As a result, a high torsional stiffness can be ensured. A relative movement between the stiffening elements can be minimized due to the small width of the zipper tape. The stiffening elements are preferably formed at least approximately congruent, ie with the same contour or with the same dimensions. Preferably, the stiffening elements are each arranged on the edge side on one of the parts and opposite one another.

According to an advantageous embodiment, the soft shell case has a packing volume of at least 30 liters, e.g. 36 liters or, according to an alternative size class, at least 50 liters, e.g. 54 liters, or according to another size class at least 90 liters, e.g. 94 liters, wherein the front part preferably comprises at least 25%, more preferably at least 35% of the packing volume and the back part preferably comprises at least 45%, more preferably at least 55% of the packing volume. One of the size classes may e.g. be characterized by a range of 30 to 35 liters, another of the size classes e.g. by a range of 50 to 57 liters, and another of the size classes e.g. through a range of 90 to 100 liters. It is expedient to make the back slightly larger than the front part, so that the greater part of the baggage load can be located where the forces exerted by a handle or linkage forces when pulling or pushing, or on a / the part, which is a hard Shell or a frame.

ITEM

According to a particularly preferred variant of the trolley soft shell case is formed as follows. The trolley soft shell case having a bottom on which the soft shell case is rollable comprises: a front part and a back part each forming a main side of the soft shell case and forming at least partially opposite narrow sides of the soft shell case, the front part and / or the back part being at least partially made Soft material is formed; four rollers arranged at the bottom; wherein the rollers are arranged and supported on both parts, in particular two rollers on the front part and two rollers on the rear part, wherein the rollers are all formed as steering rollers, wherein two of the rollers are each supported on one of the narrow sides of the front part, wherein at least one of the rollers is supported laterally on one of the narrow sides of the front part, wherein the rollers are connected to a roller receptacle, each having a support portion and wherein a stabilizing or supporting structure is substantially formed by a structurally rigid bottom structure in the front part and in the back and a stabilizing shell on the back wherein the front part is formed of a soft material, except for the floor structure, so that the front part can be compressed except for a floor structure in an unpacked state of the suitcase, wherein the stabilizing shell substantially along the entire main side of the back part extends, wherein the soft shell case one in two
Floor structure parts has divided bottom structure, wherein the bottom structure is preferably divided by a zipper, wherein at the respective bottom structure part in each case at least two of the rollers are supported, and wherein the soft shell case is in two parts and is hinged and in the unfolded state is packable on both sides, wherein the front part and the back have at least approximately the same depth, or wherein the depth of the one part at most by 20% to 50%, preferably at most 30% of the depth of other part deviates. This variant of the case provides a particularly good compromise between flexibility, handiness and torsional rigidity.

Figur 1

in einer Seitenansicht in schematischer Darstellung einzelne Komponenten eines Trolley-Weichschalenkoffers gemäß einem Ausführungsbeispiel der Erfindung;

Figur 2

in einer weiteren Seitenansicht in schematischer Darstellung die in Figur 1 gezeigten Komponenten des Trolley-Weichschalenkoffers;

Figuren 3, 4, 5

jeweils in einer perspektivischen Seitenansicht in schematischer Darstellung einzelne Komponenten des in Figur 1 gezeigten Trolley-Weichschalenkoffers;

Figur 6

in einer Ansicht auf die Rückseite in schematischer Darstellung einzelne Komponenten des in Figur 1 gezeigten Trolley-Weichschalenkoffers;

Figur 7

in einer Ansicht auf die Vorderseite in schematischer Darstellung einzelne Komponenten des in Figur 1 gezeigten Trolley-Weichschalenkoffers;

Figur 8

in einer Seitenansicht in schematischer Darstellung einzelne Komponenten eines Trolley-Weichschalenkoffers gemäß einem weiteren Ausführungsbeispiel der Erfindung;

Figuren 9, 10, 11

jeweils in einer perspektivischen Seitenansicht in schematischer Darstellung einzelne Komponenten des in Figur 8 gezeigten Trolley-Weichschalenkoffers;

Figur 12

in einer Ansicht auf eine Unterseite in schematischer Darstellung den in Figur 8 gezeigten Trolley-Weichschalenkoffer;

Figuren 13, 14

in perspektivischen Ansichten die Unterseite des in Figur 8 gezeigten Trolley-Weichschalenkoffers;

Figur 15

in einer Seitenansicht in schematischer Darstellung einzelne Komponenten eines Trolley-Weichschalenkoffers gemäß einem weiteren Ausführungsbeispiel der Erfindung;

Figur 16

in einer weiteren Seitenansicht in schematischer Darstellung die in Figur 15 gezeigten Komponenten des Trolley-Weichschalenkoffers;

Figuren 17, 18, 19

jeweils in einer perspektivischen Seitenansicht in schematischer Darstellung einzelne Komponenten des in Figur 15 gezeigten Trolley-Weichschalenkoffers;

Figur 20

in einer Ansicht auf die Rückseite in schematischer Darstellung einzelne Komponenten des in Figur 15 gezeigten Trolley-Weichschalenkoffers, mit einem Rahmen gemäß einer möglichen Variante; und

Figur 21

in einer perspektivischen Ansicht die Unterseite des in Figur 15 gezeigten Trolley-Weichschalenkoffers, mit einem Rahmen gemäß einer weiteren möglichen Variante.

In the following drawing figures, the invention will be explained in more detail with reference to embodiments. Show it:

FIG. 1

in a side view in a schematic representation of individual components of a trolley Weichschalenkoffers according to an embodiment of the invention;

FIG. 2

in a further side view in a schematic representation of the in FIG. 1 shown components of the trolley Weichschalenkoffers;

FIGS. 3, 4, 5

each in a perspective side view in a schematic representation of individual components of in FIG. 1 shown trolley Weichschalenkoffers;

FIG. 6

in a view on the back in schematic representation individual components of the FIG. 1 shown trolley Weichschalenkoffers;

FIG. 7

in a view on the front in schematic representation individual components of the FIG. 1 shown trolley Weichschalenkoffers;

FIG. 8

in a side view in a schematic representation of individual components of a trolley Weichschalenkoffers according to another embodiment of the invention;

FIGS. 9, 10, 11

each in a perspective side view in a schematic representation of individual components of in FIG. 8 shown trolley Weichschalenkoffers;

FIG. 12

in a view on a bottom in a schematic representation of the in FIG. 8 trolley soft-shell suitcases shown;

FIGS. 13, 14

in perspective views the underside of in FIG. 8 shown trolley Weichschalenkoffers;

FIG. 15

in a side view in a schematic representation of individual components of a trolley Weichschalenkoffers according to another embodiment of the invention;

FIG. 16

in a further side view in a schematic representation of the in FIG. 15 shown components of the trolley Weichschalenkoffers;

FIGS. 17, 18, 19

each in a perspective side view in a schematic representation of individual components of in FIG. 15 shown trolley Weichschalenkoffers;

FIG. 20

in a view on the back in schematic representation individual components of the FIG. 15 shown trolley Weichschalenkoffers, with a frame according to a possible variant; and

FIG. 21

in a perspective view the underside of in FIG. 15 shown trolley Weichschalenkoffers, with a frame according to another possible variant.

In connection with the description of the following figures, reference is made to reference numerals, which are not explicitly explained, to the other figures.

In the FIG. 1 a trolley soft shell case 10 is shown, which is essentially formed of two parts, namely a front part 12, which is only partially shown, and a rear part 13. The case 10 is covered with upper material (not shown). In the following FIGS. 1 to 7 For example, essentially only the structurally rigid components of the case are shown, but not some soft material or upper. In other words: in the FIG. 1 It can be seen that the front part 12 can be compressed apart from a bottom structure 22 in an unpacked state of the case 10 and, for example, can be stowed in the rear part 13 to save space.

The case 10 has an underside 11 on which rollers 17 are supported both on the front part and on the rear part. The rollers 17 are connected to a roller receptacle 18, each having a support portion 18.1. In order to transfer forces between the rollers 17 and a stabilizing or supporting structure 20 of the case 10, the roller receivers 18 are connected to a base structure 22 or to a stabilizing shell 23 (hard shell). The bottom structure 22 and the shell 23 essentially form the stabilizing structure 20.

The support section 18.1 of the front part 12 is laterally supported on a narrow side 15 of the case 10 on the floor structure 22. The roller receptacle 18 of the roller, which is arranged on the rear part 13, however, is supported on a main side 14 of the case 10. Thus, the support portion 18.1 are each supported in different planes offset from each other. With regard to the illustrated coordinate system, the support sections 18.1 are each supported substantially solely in the yz plane or in the xz plane, ie in planes oriented at an angle of 90 ° to one another.

The shell 23 is arranged on the rear part 13 and may be formed to the bottom 11 and the bottom 11 of the back part 13 also form completely. Optionally, the shell 23 may also be arranged on the opposite narrow sides 15 of the rear part 13. According to a variant, the shell 23 also forms a bottom structure of the back part. This variant is in FIG. 1 indicated by a bottom portion 23.4, which may be an integral part of the shell 23. According to another variant, the shell 23 together with one or two separate, attached to the shell 23 profiles or side cheeks, the soil structure. In other words, the floor structure may be a divided or divided floor structure, as in FIG FIG. 1 indicated. According to a further variant, the shell 23 is arranged substantially only on the main side 14 and forms, together with a separate bottom structure, which is arranged on the underside 11 and on the opposite narrow sides 15, the stabilizing structure of the rear part 13. In the shell 23 can a telescopic linkage (not shown) may be integrated. The main side of the front part 12 is located opposite to the main side 14 of the rear part 13 and formed by soft material (not shown).

The roller mount has a support or a support or base plate 18.2, which is provided on the underside 11 of the case 10 and supported on the stabilizing structure 20. The roller receptacle has between the support portion 18.1 and the base plate 18.2 a radius R18 or a preferably arcuate curved portion.

As in the FIGS. 1 and 2 recognizable, the respective bottom structure is formed on the respective narrow side 15 in the height direction (z-direction) at least approximately as long as the respective support portion 18.1. This allows for an effective support. On the other hand, the case 10 can be handled particularly easily, in particular packed very flexibly. Soft material can be provided above the floor structure. Stiffening profiles are not required in the area above the floor structure, at least not on the narrow sides and not on the main side of the front part 12th

The case 10 has four rollers, of which two rollers 17 are shown. The four rollers are supported in at least three different planes, namely in at least one plane parallel to the xz plane and in at least two planes parallel to the yz plane.

The roller receptacle 18 has an edge, by means of which the roller receptacle can be arranged at the corner between the respective main side 14 and the respective narrow side 15. This arrangement allows a stable attachment of the role recording on the case. The edge can be made more or less strong, depending on how the roller receptacle can be connected to the stabilizing structure 20. As in FIG. 1 As shown, the edge of the roll receptacle supported in the xz-plane can be so wide that the roll receptacle is just also arranged on the narrow side. A support should not be effected thereby. Rather, the case 10 can be provided with an improved edge protector, and the roller mount can be arranged on the case surface in a simpler and more stable manner.

The two parts 12, 13 of the case 10 can be connected to one another at a stiffening element 21. The stiffening element 21 can also be the interface define on which the case 10 can be opened. In this case, each part 12, 13 have their own stiffening element, wherein the stiffening elements can then be formed geometrically congruent. The stiffening elements can each be provided, for example, by a circumferential profile, eg a steel ring. As can be seen, the two parts 12, 13 are formed at least approximately the same thickness (in the depth direction or the y-direction).

This can be done in Fig. 1 embodiment shown on the back both a stabilizing back shell and a bottom structure on the back part, with large suitcases also inside a reinforcing plate can be used, which reinforces the soil structure in the back.

The stabilizing bottom structure and the stiffening element on the front part can be connected via an additional textile element sewn together with the stiffening element, namely a so-called "mounting strip", in particular in the form of a zipper tape. Also, the shell can be connected to the stiffening element on the back, in particular also by sewing by means of a mounting strip.

In the FIG. 2 the case 10 is shown in a further side view. It can be seen that the roller receivers 18 on the opposite narrow side of the case 10 in the same manner as in FIG. 1 are shown shown. The roller receptacle 18, which is arranged on the front part 12 on the floor structure 22, is laterally supported on the narrow side 15 of the case 10. The roller receptacle 18, which on the other hand is arranged on the rear part 13, is supported on the main side 14 on the stabilizing shell 23. The stabilizing structure 20 of the case 10 is essentially formed by the bottom structure 22, the stabilizing shell 23 and the stiffening element 21 connecting the parts 12, 13.

For the stabilizing structure 20, in particular the bottom structure 22 or the shell 23, different materials can be used, for example so-called ABS material, or polycarbonates (PC), or thermoplastics such as polypropylene (PP).

In the FIG. 3 the arranged on the front part 12 floor structure 22 is shown in detail. The floor structure 22 is a U-shaped profile which extends on the underside 11 and on both opposite narrow sides 15. The profile may be integrally formed, as shown. This has stability advantages, and thereby also the production costs can be kept low. A U-profile can be realized in a simple and cost-effective manner, for example, from a material with honeycomb structure (so-called "honeycomb").

The support section 18.1 of the respective roller mount 18 is in each case arranged essentially alone on the narrow sides 15 and is laterally supported. The bottom structure 22 is connected to the stiffening element 21, wherein the stiffening element is shown here as a rectangular, circumferential, dimensionally stable profile. However, the stiffening element 21 may also have further components or be connected to other components, e.g. with a zipper tape. Even if the stiffening element consists of a dimensionally stable material, the stiffening element may have a certain elasticity. The stiffening element is not necessarily rigid. This can facilitate the handling, in particular the packing and closing of the case.

The FIGS. 4 and 5 show further views of the front part 12 and optionally also arranged on the back floor structure 22, wherein the arranged on the front part 12 floor structure 22 is formed as a bottom profile, which has a bottom portion 22.1 and two opposite side portions 22.2. In FIG. 5 It is shown that the stabilizing shell 23 extends substantially along the entire main side 14 of the rear part 13. In this case, the stabilizing shell is preferably a substantially two-dimensionally extending molding. The stabilizing shell 23 is not arranged on the narrow sides in the variant shown. Rather, the shell 23 is connected to stabilizing side jaws 22.3 or laterally arranged reinforcing plates. Optionally, the stabilizing shell 23 may also be connected, for example, to a separate floor structure, which may be formed according to the floor structure arranged on the front part.

Optionally, the shell 23 may also be formed as a three-dimensionally extending molding, which extends both on the main side 14 and on the opposite narrow sides and / or on the underside 11. The stabilizing shell 23 can then be arranged as a one-piece molded part at the same time also on the underside and on the narrow sides.

The stabilizing shell 23 may also have on the underside 11 an additional stabilizing plate (reinforcing plate), either alone or in combination with a soil structure. An additional reinforcement plate may be useful if the case has a particularly large volume and / or if the back is significantly larger than the front part. This is because most of the mass of the contents of the case is then loaded on the underside of the rear part, in particular if the case is tilted by means of a linkage and then pulled onto two rollers.

In the FIG. 5 Furthermore, a radius R23 or a preferably arcuate curved portion is shown. The radius R23 corresponds to a radius of the shell 23 between the main side 14 and the bottom 11. The radius R23 may correspond to a radius of curvature of the shell 23, or may be at least partially provided by a bottom structure which is provided separately from the shell 23 and with the shell 23 is connected to a structural component. The radius R23 preferably corresponds at least approximately to that in FIG FIG. 1 This allows a stable connection between the roller receptacle 18 and the stabilizing structure 20. The forces between these components can then be transferred flat. According to one variant, the radius is for example in the range of 30mm to 50mm.

From the FIG. 6 goes again in detail the arrangement of the roller holder 18. Both support sections 18.1 of the roller receivers 18 arranged on the rear part 13 are supported on the stabilizing shell 23 or on the main side 14. The main side 14 extends at least approximately alone in an xz-plane. The opposite narrow sides 15, however, extend in the depth direction (y), ie in a yz plane.

The shell 23 is T-shaped in the xz-plane. In other words, the shell 23 extends only in the area of the roller receptacles 18 over the entire width (in the x-direction). of the suitcase. A first, wider section 23.1 of the shell 23 is arranged in the region of the roller receivers 18. A second, narrower section 23.2 of the shell 23 extends upward at a height above the roller receivers 18 or their support sections 18.1, preferably up to the top of the case. Due to the T-shaped shell 23, a forwarding of forces between a rod integrated in the shell 23 or a handle arranged on the top of the suitcase and the roller receptacles 18 can take place on the one hand. On the other hand, the lateral area of the rear part 13 can be flexibly packed. The T-shape allows for directional power flow and can facilitate handling of the case, whether it's while packing or rolling.

In the FIG. 7 the front part 12 is shown in a front view. Both arranged on the front part 12 roller mounts 18 are each based on one of the opposite narrow sides 15 from. The support also takes place on a bottom 11 in order to be able to introduce forces into the case 10 on the face side. For this purpose, the roller receivers 18 each have a support, a support structure or a base plate 18.2. As can be seen, however, the support does not take place on the main side 14. The roller receivers 18 are arranged over the corner, ie, the roller receivers 18 frame an edge between the main side 14 and the respective narrow side 15, but only to better accommodate the roller mount 18 to connect with the surface of the case 10. The support, however, takes place on the respective narrow side 15th

In the FIG. 7 Furthermore, a radius R22 or a preferably circular arc-shaped curved section is shown. The radius R22 corresponds to a radius of the bottom profile 22 between the respective narrow side 15 and the bottom 11. The radius R22 may correspond to a radius of curvature of the bottom profile 22. The radius R22 preferably corresponds at least approximately to that in FIG FIG. 1 shown radius R18 of the roller 18 and the in FIG. 5 This allows on the one hand a stable connection between the roller mount 18 and the stabilizing structure 20, in particular the bottom profile 22. On the other hand, only two different types of roller mount 18 need to be provided to attach four rollers to the case 10 , This also allows a simple construction and a simple design of the case 10th

Now, if the case 10 laterally, ie in the x-direction, rolled or moved, so a force from the roller seat 18 can be introduced at the front side of the respective narrow side 15 in the case. In other words, less shear forces arise between the roller seat 18 and the surface of the case 10. The forces can be transferred from the roller receptacle 18 flat normal to the respective narrow side. This is particularly advantageous in terms of impacts or curbs. Apart from that, the case 10 is particularly resistant to binding and can be handled in a directionally correct manner, regardless of a rolling direction. The staggered surface support thus provides, especially with regard to a suitcase with four castors handling advantages.

In the FIG. 8 a further embodiment of a trolley Weichschalenkoffers 110 is shown. This trolley soft-shell case 110 has components similar to those in the FIGS. 1 to 7 described trolley soft case 10. In addition, the trolley soft-shell case 110 also has a zipper 19 with a zipper tape 19.1 or one or more so-called mounting strips, which extends at least on three sides of the case 110 circumferentially along a stiffening element 21. As a result, the case 110 can be completely unfolded and packed on both sides, eg in a position unfolded on the floor. The zipper tape 19.1 has a width y19 in the range of 20mm to 35mm. A particularly good stability and torsional rigidity of the case 110 can be ensured if the width is smaller than 30 mm or even smaller than 25 mm.

In the Figures 9 and 10 opposite side portions 23.3 of the shell 23 are shown. Unlike in the FIGS. 1 to 7 In the embodiment shown, the shell 23 may be formed as a one-piece molded part or structural component, which also extends on the narrow sides of the case 110. The respective roller mount 18 is at most supported on one edge of the side section 23.3. In the FIG. 11 is indicated that the side portions may optionally be formed as a separate side jaws 22.3 according to a variant.

In the FIG. 12 all four rollers 17 are shown with all four roller 18 shots. The bottom 11 of the case 110 and thereby also the bottom structure is divided by the zipper 19 into two parts. Both parts are each from one Stiffening element 21 framed, on which each of the zipper tape 19.1 attacks. The rollers 17 are all formed as castors. There are two different types of roller mounts 18 are provided, namely type A and type B. On one narrow side 15 of the suitcase only the type A is provided, and on the other narrow side 15 of the suitcase only the type B is provided. Schematically shown are also the three radii R18, R22 and R23. These three radii are at least approximately the same size, so that on the (as in FIG. 12 shown) left side 15 of the suitcase type A can be used both for a support on the rear main side 14 as well as a support on the left narrow side of the front part 12. In this case, supported on the front part 12 roller mount 18 of the type A with respect to the supported on the rear part 13 roller mount 18 is arranged rotated by 90 ° clockwise in the xy plane about the z-axis. Likewise, the type B can be used both for a support on the rear main side 14 as well as a support on the right narrow side of the front part 12. In this case, supported on the front part 12 roller mount 18 of the type B with respect to the supported on the rear part 13 roller mount 18 is arranged rotated by 90 ° counterclockwise in the xy plane about the z-axis. In the Figures 13 and 14 This arrangement is illustrated in detail.

The radius R23 corresponds to a curvature between a section arranged on the main side (sections 23.1, 23.2, as in FIG FIG. 14 shown) of the shell 23 and a bottom portion 23.4 of the shell.

Out FIG. 13 It can be seen that the front floor structure 22 has a U-shape and is formed as a one-piece profile. Preferably, the bottom structure 22 is formed of a material having a honeycomb structure (so-called "honeycomb"), in particular completely. This provides good stability while allowing a simple structural component. Out FIG. 14 shows that the rear shell 23 extends to the bottom and at least partially forms a bottom structure of the back part.

In the FIG. 15 Another embodiment of a trolley soft-cup case 210 is shown. This trolley soft case 210 has components similar to those in the FIGS. 1 to 7 or 8 to 14 each described trolley soft-shell case 10 or 110. In contrast to the two embodiments described above has this trolley Weichschalenkoffers 210 no shell, but a frame 24, which is arranged on the rear part 13. The frame 24 extends along the opposite narrow sides 15, is preferably circumferential, and is not or at best arranged only in a small portion on the main side 14, as described in more detail below. This makes it possible to provide a region of soft material (soft region) on the rear part 13 as well, so that the flexibility of this case 210 can be increased even further compared with that of the previously described cases 10, 110. Also, in this case 210 supported on the back rollers 17 are not supported on the main page 14, but each on the opposite narrow sides 15, that is in the same or comparable manner as the rollers 17 on the front part 12. In other words, all (four) Roller mounts 18 are each supported on narrow sides 15.

From the FIG. 16 shows that the frame 24 is disposed on both opposite narrow sides 15, wherein the narrow sides are each formed substantially by the frame 24. The respective support section 18.1 is connected to the frame 24 at the respective narrow side. The zipper tape 19.1 is connected either directly or, as indicated, with the interposition of / a stiffening element 21 to the frame 24, in particular sewn or materially connected.

The Figures 17 . 18 and 19 indicate that the frame 24 also forms an upper side of the rear part 13. In the FIG. 19 it is shown that the frame 24 can surround a soft area 25. Soft material may be disposed in the soft region 25 and connected to the frame 24. The soft area 25 can be made flexible. The frame 24 can span the soft material, for example, in the soft region 25. The illustrated frame 24 has substantially three major surfaces, namely the two side surfaces and the top. This results in a U-shaped cross-sectional profile, wherein the U-shape corresponds to an inverted (upside down) U-letter. On the underside of the frame can optionally be additionally provided.

The Figures 20 and 21 show in detail individual possible variants of the frame 24. An inner edge 24.1 of the frame can optionally be arranged on the main side 14. The inner edge 24.1 may be arranged overlapping the main side 14. The main side 14 is then formed not only by a soft area 25, but also by the Frame 24. The frame 24 then has a rear portion 24.2, which may optionally extend along several sides, in particular along all four sides of the suitcase.

In the Fig. 21 the case 210 is shown from the bottom 11. The roller receivers 18 are arranged and supported on the opposite narrow sides 15. The rear part 13 has a frame 24, which is also arranged on the main side 14. The inner edge 24.1 is arranged overlapping the main side 14, wherein the frame 24 has a rear portion 24.2, which extends along three sides of the case 210. In the area of the underside 11, this section 24.2 forms, in addition to the roller receptacles 18, in each case a rear edge protection. Optionally, the frame 24 may also have a rear portion extending parallel to the underside 11, as indicated by the dashed line of the inner edge 24.1.

The rear part 13 also has a bottom structure 22. The bottom structure 22 is formed as a U-shaped bottom profile, wherein the bottom portion 22.1 forms the bottom 11. The bottom profile has a radius R22, which is formed geometrically corresponding to a radius R18 of the respective roller mount 18.

LIST OF REFERENCE NUMBERS

10; 110; 210

Trolley-soft carrying case

11

bottom

12

Front part 1

13

rear part

14

Home

15

narrow side

16

soft material

17

Roller, in particular castor

18

roll cradle

18.1

support section

18.2

Support section, support, support structure or base plate

19

zipper

19.1

Zipper tape (mounting strip)

20

stabilizing structure

21

Stiffening element, in particular hoop, ring or steel ring

22

soil structure

22.1

bottom section

22.2

side portion

22.3

stabilizing side jaw (support element)

23

stabilizing shell

23.1

first, wider section

23.2

second, narrower section

23.3

side portion

23.4

bottom section

24

frame

24.1

Inner edge of the frame

24.2

back section

25

Soft area made of soft material

R18

Radius of the roller mount between the support section and the base plate

R22

Radius of the soil structure between the underside and the respective narrow side

R23

Radius of the shell between the main page and the bottom

x

Lateral direction (width)

y

Depth direction (depth)

z

Height direction (length)

Claims (15)

1. Trolley-type soft-shell suitcase (10; 110; 210) having an underside (11) on which the soft-shell suitcase can be rolled along, wherein said soft-shell suitcase comprises:

   - a front part (12) and a rear part (13) which each form a main side (14) of the soft-shell suitcase and form, at least partly, opposed narrow sides (15) of said soft-shell suitcase, wherein the front part (12) and/or the rear part (13) is/are formed, at least partly, from soft material;

   - a stabilising or load-bearing structure (20);

   - rollers (17) which are arranged at the underside (11);

   wherein the rollers (17) are arranged and supported at both of the parts (12, 13), in particular two rollers (17) at the front part (12) and two rollers (17) at the rear part (13), wherein at least one of the rollers (17) is supported laterally at a narrow side (15) of the front part (12), wherein said rollers (17) are connected with a roller-holder (18) which has a supporting section (18.1) respectively,
   wherein the stabilising or load-bearing structure is substantially formed by a structurally stiff base structure (22) at the front part (12) and at the rear part (13) and by a stabilising shell (23) at the rear part (13),
   wherein the front part (12), apart from the base structure (22), is formed by a soft material, such that the front part (12), apart from the base structure (22), can be compressed in an unpacked state of the suitcase (10),
   characterised in that the stabilising shell (23) substantially extends along the entire main side (14) of the rear part (13).
2. Trolley-type soft-shell suitcase (10; 110; 210) according to claim 1, characterised in that the structurally stiff base structure (22) is arranged at the underside (11) and at the opposed narrow sides (15), wherein the supporting section of the front part (12) is supported laterally at the base structure (22) at a narrow side (15) of the suitcase (10).
3. Trolley-type soft-shell suitcase (10; 110; 210) according to claim 1, characterised in that the front part (12) and the rear part (13) each provide at least 20%, and preferably at least 30%, of an absolute packing volume of the soft-shell suitcase.
4. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that at least one of the parts, in particular the front part (12), has a stabilising structure (22, 22.1, 22.2; 23, 23.3, 23.4) which is arranged at the underside (11) and preferably also at at least one of the opposed narrow sides (15) and at which the particular roller (17) is supported at the underside (11).
5. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that the soft-shell suitcase has a base structure (22.1, 23.4) which is divided into two base structure parts and which is provided at both the front part and the rear part, at least two of the rollers (17) being supported, in each case, at the particular base structure part (22.1, 23.4).
6. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that one of the parts (12, 13), in particular the rear part (13), has a shell (23) which stabilises the structure of the soft-shell suitcase or a frame (24), which shell and frame are made from dimensionally stable material in each case and at which shell or frame the particular roller (17) is supported, directly or indirectly, via a supporting element (22.3).
7. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that the soft-shell suitcase has, at the front part (12), a base structure (22) in the form of a base profile with a U-shaped cross-sectional profile, the main side of said front part (12) being constructed, preferably completely, from soft material.
8. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that the soft-shell suitcase is in two parts and can be opened up and, in the opened-up state, can be packed on both sides, the front part (12) and the rear part (13) having at least approximately the same depth, or the depth of one part (12, 13) differing by a maximum of 20% to 50%, and preferably a maximum of 30%, from the depth of the other part (12, 13).
9. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that the front part (12) and the rear part (13) can be connected to one another by means of a zip-fastener (19), said zip-fastener being passed through a base structure/the base structure of the soft-shell suitcase and subdividing said base structure, and said zip-fastener (19) being preferably provided at at least three sides (11, 15) of the soft-shell suitcase.
10. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that the rollers (17) are supported laterally, both at at least one of the main sides (14) and at at least one of the narrow sides (15), said rollers (17) being supported laterally in a manner offset in relation to one another in differently oriented planes, and each roller (17) being supported substantially exclusively in only one of the planes.
11. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that the soft-shell suitcase has a roller (17) which is supported laterally at a narrow side (15) and is fastened to a roller-holder (18) which has a substantially flat supporting section (18.1) which is arranged at the narrow side (15).
12. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that at least one of the rollers (17) is fastened to a roller-holder (18) which has a bearing structure (18.2) for mounting the particular roller (17), which bearing structure is connected by a radius (R18) to a supporting section (18.1) of the roller-holder, all the roller-holders (18) of the soft-shell suitcase preferably having the same radius.
13. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, characterised in that all four rollers (17) are constructed as castors and are each supported laterally, by means of a roller-holder (18) with a supporting section (18.1), at the particular side (14, 15) of the soft-shell suitcase.
14. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, particularly according to Claim 9, characterised in that there is arranged at the front part (12) and/or at the rear part (13), in each case, an at least partly circumferential stiffening element (21) upon which a zip-fastener/the zip-fastener (19) acts, said at least one stiffening element (21) being preferably arranged at an edge of the particular part (12, 13), in particular along the zip-fastener.
15. Trolley-type soft-shell suitcase (10; 110; 210) according to one of the preceding claims, particularly according to Claim 14, characterised in that a circumferential stiffening element (21) in the form of a steel ring is arranged at the front part (12) and rear part (13) in each case, it being possible to connect said stiffening elements to one another by means of a zip-fastener strip (19.1) belonging to a zip-fastener/the zip-fastener (19), which zip-fastener strip preferably has a width of a maximum of 40 mm, preferably a maximum of 35 mm, more preferably a maximum of 33 mm, and particularly between 30 and 33 mm.

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