Device for carrying loads
The device addresses complexity and limited use of existing load-carrying devices by incorporating a foldable frame with damping and locking mechanisms, enhancing usability and reducing user effort through adjustable tilting angles.
Patent Information
- Application Number
- DE102021118636
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-07-19
- Publication Date
- 2025-12-11
- Estimated Expiration
- 2041-07-19
AI Technical Summary
Existing load-carrying devices, such as those for storage items or objects like ladders and bicycles, often require complex designs, are limited in application, need significant vertical clearance, and impose a burden on users to manually handle heavy loads, especially at chest or head height, without allowing for adjustable tilting angles.
A device with a fixed support frame and a movable frame that includes a foldable support and load frame, allowing horizontal and vertical movement, featuring a damping element and locking mechanisms to facilitate easy access and reduce user effort, with adjustable tilting angles.
The device simplifies access to stored items, reduces design complexity, expands application range, and alleviates user burden by absorbing weight, enabling convenient handling and adjustable tilting angles.
Smart Images

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Abstract
Description
[0001] The present invention relates to a device for carrying loads according to the preamble of claim 1 and to a stationary body with at least one such device according to claim 15.
[0002] For a wide variety of applications, both private and commercial, the storage of items is necessary. This can be for both storage and transport. Boxes, drawers, racks, and similar containers can be used for this purpose, in or on which the items can be arranged. These containers can typically be moved by a user into a working position, allowing for loading, filling, and the like. Subsequently, the containers can be moved by the same person into a non-working position, where storage or transport takes place. The reverse applies to unloading, retrieval, and the like. In the non-working position, direct access to the items is usually not possible.
[0003] For example, such boxes, drawers, racks, and the like can serve as storage solutions, such as the drawers of a cabinet, for instance, a wardrobe, kitchen cabinet, office cabinet, and the like, to store clothing, kitchen utensils, food, office supplies, and the like. Such storage solutions can also be used in vehicles, such as emergency vehicles of the fire department, police, or disaster relief organizations, as well as ambulances, to stow the necessary equipment. These types of storage solutions can also be used in and on the vehicles of tradespeople for their tools and equipment. This also applies to roof racks for tradespeople, which are suitable for carrying ladders and similar equipment.
[0004] In any case, such storage devices for objects can be movable at least horizontally relative to a body that is fixed relative to the storage device, such as a furniture body, a vehicle frame, a vehicle chassis, a vehicle roof, a luggage rack or the like, by means of appropriate devices.
[0005] To make the best possible use of the height of the stationary body for storage, such storage devices can also be positioned at or above the user's head height. In this case, a ladder or similar device may be required to reach the storage device in its operating position. Alternatively, the device for carrying the storage device can be designed so that, in a first step, the user moves it from its unused position to its operating position, and then, in a second step, folds it diagonally downwards to a vertical position to allow direct access to the storage device. The reverse applies to moving it back to its unused position.
[0006] The "E53GP" product from PROFILSCOPE SCHIENEN UND PROFILE GMBH is a ready-to-install complete set with one drawer in a sliding and tilting partial extension, the extension and tilt angle of which are easily adjustable. The swivel system makes the contents of the drawer accessible at shoulder height and above for loads up to 100 kg.
[0007] The product "ENGEL Slide, tilt, MT35 / 45 / MR040" is a tilting drawer slide for a cooler drawer, i.e., a drawer slide with a tilting function made of sheet steel for certain coolers as well as other boxes of similar dimensions. This allows the box to be stored elevated in the cargo area of a vehicle and, to open it, pulled out and tilted downwards. Solid ball bearings ensure smooth operation. Gas springs dampen the downward movement during tilting and assist with the return to the upright position. A locking mechanism ensures secure closure in the transport position.
[0008] The Thule Ladder Tilt (also known as the Thule Ladder Holder 311) is a ladder holder that folds down from the side of a vehicle. It can be pulled out from the side, tilted downwards, and thus brought to a convenient loading height. Once the ladders are loaded and secured, the loaded ladder holder can be pushed back onto the roof.
[0009] Comparable products for loading ladders exclusively onto vehicles, and especially onto vehicle roofs, are known as the "ErgoRack" from Prime Design Europe, the "Ladder Side Lift" from Sortimo International GmbH, and the "Store Van Ladder Carrier" from FAMI Srl. A comparable product, the "FISCHER Roof Bike Carrier Roof Lift," is also specifically designed for bicycles.
[0010] EP 1 818 218 A1, held by FAMI Srl, describes such a device for carrying objects, comprising a fixed support frame, a movable frame associated with the fixed frame and sliding on it between a non-use position, in which the movable frame is contained within the overall dimensions of the fixed frame, and a use position, in which the movable frame projects from the fixed frame. The movable frame further comprises at least one engagement section for releasably holding an object on the movable frame, and means for movement arranged between the movable frame and the fixed frame to move the movable frame in a given direction. The device includes a damping element to dampen the movement of the movable frame from the use position to the non-use position.
[0011] US Patent 2014 / 0252056A1 describes a roller-supported roof rack for elongated objects such as kayaks. The roof rack comprises a space frame with at least one U-shaped section, the legs of which can be slidably attached to a front and rear crossmember of a vehicle roof rack. This allows the space frame to be moved uniformly relative to the vehicle roof rack. Front and rear crossmembers are provided, mounted on the space frame. The front crossmember supports a pair of kayak saddles, each coated with a friction-inducing material to prevent slippage between a secured kayak and the space frame. The rear crossmember supports a pair of guide plates, each coated with a slip-inducing material to facilitate slippage between a kayak being loaded onto or unloaded from the space frame.A roller can be mounted on a rear part of the room frame.
[0012] A disadvantage of such devices for carrying storage items such as boxes, drawers, racks, and the like, or for directly carrying loads, bodies, or objects such as ladders, bicycles, or the like, is that they often require a comparatively complex design, particularly regarding the relative movement between the fixed support frame and the frame that moves relative to it, especially for implementing a pivoting or tilting motion from the horizontal downwards. This can increase the design effort and thus also the manufacturing costs in terms of materials and assembly. It can also increase the susceptibility to defects and the maintenance requirements. Furthermore, it can increase the weight and the space required.
[0013] Another disadvantage is that such devices are sometimes designed for very specific applications, such as stowing ladders, bicycles, or kayaks on a vehicle roof, and cannot be used, or can only be used to a very limited extent, for other loads, people, or objects. This significantly restricts their use.
[0014] A further disadvantage is that such devices often require a considerable amount of vertical clearance to allow for the downward pivoting or tilting motion from the horizontal, as either the pivoting or tilting frame or an end of the object held there protrudes significantly upwards when pivoting or tilting downwards. Such devices for vehicles are therefore unsuitable for use inside garages, parking garages, under trees, or similar locations, meaning that access to the storage device or load is impossible in these situations. This also applies to such storage devices in the form of boxes, drawers, carriers, and the like within compartments of a furniture carcass, vehicle frame, vehicle chassis, or similar structures.
[0015] A potential disadvantage is that the weight of the movable frame, as well as the person carrying it or their belongings (possibly including their contents), must be held by the person while lowering or folding it down, and then pushed upwards in the opposite direction, which can require considerable effort. It should be noted that this effort is exerted at chest or head level and above, which can be an additional strain. This can be particularly disadvantageous for short, weak, or physically limited individuals.
[0016] A further disadvantage is that the movable frame, when tilted, cannot be held in a fixed angle but can only be lowered onto the ground or leaned against the side of the vehicle. Currently, there is no provision for locking the movable frame at a tilt angle relative to the horizontal. This limits its potential uses.
[0017] FR 2 673 404 A1 describes a device for transporting and handling a long object on the roof of a van, with longitudinal beams supporting two parallel rails with a C-shaped cross-section at the front and rear of the roof. The rollers of a first carriage run on these rails, and its movement is limited by supports fixed within the rails. A second carriage, positioned in front of the first, rolls on the rails by means of rollers. This second carriage, whose cross members have a C-shaped cross-section, rolls over the straight end of the device on rollers that are rigidly connected to the straight ends of the rails. The connection between the carriages is established by common axles that support the guide rollers.
[0018] One object of the present invention is to provide a device for carrying loads, in particular for carrying storage equipment, especially as a roof rack, of the type described above, such that the disadvantages of known devices of this type can be at least partially overcome or at least reduced. In particular, the complexity of the design should be reduced. Additionally or alternatively, the range of possible applications should be expanded. Additionally or alternatively, the pivoting, folding, or tilting movement should be as flat as possible relative to the horizontal. Additionally or alternatively, the person should be at least partially relieved of the burden of having to hold the weight of the movable frame and, if applicable, also of the body or storage equipment carried thereon, possibly including its contents, when pivoting or folding down, and of having to push it upwards in the opposite direction.Additionally or alternatively, the movable frame should be able to be fixed at at least one tilting angle relative to the horizontal, preferably at various tilting angles, and most preferably continuously. At the very least, an alternative to known devices of this kind should be provided.
[0019] The object of the invention is achieved by a device having the features of claim 1 and by a stationary body having the features of claim 15. Advantageous embodiments are described in the dependent claims.
[0020] The present invention thus relates to a device for carrying loads with a fixed support frame, which is designed to be held fixedly on a fixed body, and with a movable frame, which is movably connected to the fixed support frame, wherein the movable frame is further designed to be moved horizontally relative to the fixed support frame between a non-use position, in which the movable frame is at least substantially, preferably completely, received by the fixed support frame, and a use position, in which the movable frame projects at least partially, preferably substantially, beyond the fixed support frame, along a linear direction of movement.
[0021] The device according to the invention is characterized in that the movable frame has a foldable support frame and a foldable load frame along the linear direction of movement, wherein the foldable support frame is rotatably connected to the stationary support frame and foldably connected to the foldable load frame, wherein the foldable load frame is rotatably connected to the stationary support frame and is designed to receive at least one first load in the vertical direction, wherein the foldable load frame is further designed to be folded up together with the foldable support frame in the operating position relative to the stationary support frame and held by the foldable support frame, and to be folded down vertically away from the foldable support frame and to lower the first load vertically.
[0022] The support frame can be formed by at least two parallel support frame legs, which could be connected to each other only by the movable frame, or by at least one additional cross member as a U-shaped support frame. If the device according to the invention is used or mounted in a furniture carcass, the elements fixed to the furniture carcass, for example a pair of telescopic rails, can form the support frame.
[0023] The non-use position thus represents a positioning of the movable frame relative to the stationary support frame, in which the movable frame rests or is retracted, so that a first load received by the device or its movable frame is stowed or can be transported. In the use position of the movable frame, access to the first load, which is extended horizontally, is generally possible; however, convenient access to the first load for the user of the device is only possible after folding down the foldable support frame. The first load can be a specific object such as a ladder, a bicycle, or the like, which can be stowed or transported using the device according to the invention. However, the first load can also be a first load-bearing element or...a first storage device such as a lockable box, a lockable chest or the like, in which items such as tools, clothing, kitchen utensils and the like can be stored.
[0024] The present invention is based on the understanding that access to at least the first load can be facilitated for a person using the device according to the invention by first moving the movable frame horizontally in a linear direction from the non-use position towards the user into the use position, and then folding it down vertically past the fixed support frame. This allows the first load to be moved closer to the ground on which the user is located or standing, making it easier for the user to reach the first load. This applies particularly to devices according to the invention whose fixed support frame extends vertically at chest height.The device is arranged at the user's head height, for example on a vehicle's roof rack, as a stationary body relative to the device according to the invention. In any case, the user can relatively easily reach the folded-down section of the folding load frame and access the first load, or remove the first load from the folding load frame and pick it up there.
[0025] Providing the movable frame with a folding kinematic mechanism, including a folding support frame and a folding load frame, makes it possible to design the folding load frame to be rotatable relative to the fixed support frame, similar to a seesaw, while simultaneously holding the end of the folding load frame facing the folding support frame and connecting it to the fixed support frame. This allows forces exerted by the folding load frame to be absorbed by the fixed support frame via the folding support frame, or conversely, for the folding load frame to be held by the fixed support frame via the folding support frame.At the same time, this allows the vertical deflection of the end of the folding support frame facing the folding support frame to be kept comparatively small, which can minimize the installation space required for using the device according to the invention in the vertical direction. This prevents the end of the folding support frame facing the folding support frame from becoming blocked or colliding with it in the vertical direction.
[0026] The device according to the invention can, for example, be implemented as an attachment for a roof rack to transport specific objects such as ladders or bicycles as the first load, or loose objects as the first load, in a transport box on the roof of a vehicle as a stationary body, and to allow convenient access to these objects when the foldable frame is lowered, preferably from the side of the vehicle, as described above. The device according to the invention can also be used in a shelf or piece of furniture to provide more convenient access to a first load, in which case the stationary body can be the shelf frame or the furniture body.
[0027] According to an advantageous embodiment of the invention, the fixed support frame, the foldable support frame, and the foldable utility frame form a triangle pointing upwards in the vertical direction when folded. This can enable force transmission with a comparably low height as described previously.
[0028] According to an advantageous embodiment of the invention, the section of the folding frame that is folded down when the folding frame is in its folded state is longer than, preferably at least twice as long as, the section of the folding frame that is folded up. This allows the height of the device according to the invention to be kept comparatively low when the folding frame is folded, while simultaneously enabling convenient access to the first load as described above. The longer the folded-down section of the folding frame is compared to the folded-up section, the lower the height of the device according to the invention can be when the folding frame is folded.
[0029] According to an advantageous embodiment of the invention, both the folding support frame and the folding load frame are connected to the stationary support frame by means of movement devices, allowing translational movement in the linear direction and rotational movement relative to the linear direction. This can be achieved, for example, by means of rollers attached to the folding support frame and the folding load frame, which can be guided in corresponding guide rails of the stationary support frame along the linear direction of movement. Alternatively, this can also be implemented by means of telescopic rails between the stationary support frame and the movable frame, whereby the folding support frame and the folding load frame can then also be rotatable relative to the telescopic rails. This allows the aforementioned relative movements to be achieved.
[0030] According to the invention, the movable frame between the folding support frame and the folding load frame has at least one damping element, which is designed to absorb at least part, preferably all, of the weight of the folding load frame, and preferably also a portion of the weight of the first load. Such a damping element can, for example, be a gas spring or a gas damper. Springs such as coil springs can also be used for this purpose.
[0031] In any case, the damping element can absorb a certain amount of the weight of the folding frame, thus relieving the user of having to hold or absorb this portion of the weight when folding the frame down, and when folding it up. This can simplify or facilitate the handling of the folding frame for the user. This can be particularly beneficial if the fixed support frame is used at chest or head height. It can also be especially advantageous for physically weak or limited users.
[0032] In any case, the damping element can, for example, be designed and arranged between the folding support frame and the folding load frame in such a way that the known and constant weight of the folding load frame itself can be partially or completely absorbed. Accordingly, the empty folding load frame, i.e., without an initial load, can be easily lowered and raised by the user. If the device according to the invention is to be used for a comparatively heavy initial load, the damping element can be designed to be correspondingly stronger.are arranged between the folding support frame and the folding load frame to absorb both the weight of the folding load frame and part of the weight of the first load, so that although the user has to fold down the empty folding load frame against the force of the damping element, he is relieved when pushing up the folding load frame along with the absorbed first load.
[0033] According to an advantageous embodiment of the invention, the damping element is designed to absorb varying weight forces by changing its arrangement between the folding support frame and the folding load frame. In other words, the damping element can be removed by the user from at least one end or both sides of the folding support frame and / or the folding load frame and repositioned at at least one other location. This allows the effect of the damping element to be altered due to the changing leverage, and thus adjusted to a certain extent by the user according to their preferences. For example, the effect of the damping element can be adjusted based on the weight of the initial load.
[0034] According to an advantageous embodiment of the invention, the damping element is designed to be switched between a fixed state, which prevents the folding between the folding support frame and the folding utility frame steplessly or in at least one discrete angular position, preferably in several discrete angular positions, and a movable state, which enables the folding between the folding support frame and the folding utility frame, by means of an actuating element. This can be implemented, for example, by means of a gas spring, which can be continuously fixed in any desired angular position. By means of corresponding detent mechanisms, the folding utility frame can also be folded down into at least one discrete angular position suitable for the respective application, or into several suitable discrete angular positions, even when using a damping element.In any case, the foldable support frame can be held in a fixed position in the horizontal plane in order to be moved in the linear direction of movement relative to the fixed support frame.
[0035] According to an advantageous embodiment of the invention, a folding locking mechanism is arranged and configured between the folding support frame and the folding usable frame, between the folding usable frame and the fixed support frame, or between the folding support frame and the fixed support frame. This locking mechanism prevents the folding usable frame from folding into at least one discrete angular position, preferably into several discrete angular positions. This allows, as an alternative to the damping element described above, for appropriate positioning of the folding usable frame in the folded state. For this purpose, for example, locking mechanisms such as those known from the headboard of a bed can be used to enable at least one discrete angular position in the folded-down state. In this case as well, the folding locking mechanism can hold the folding usable frame in the fixed horizontal position.
[0036] According to an advantageous embodiment of the invention, the device has at least one drive, preferably electric, hydraulic, or pneumatic, configured to fold the foldable working frame relative to the foldable support frame in the operating position. Alternatively, this can relieve the user of this task, which can be performed by a suitable drive, particularly a rotary one. Operation by the user can be effected by suitable control elements of the device according to the invention, which can be provided, for example, on the fixed support frame or on the movable frame, particularly on the foldable working frame, for example, in the form of switches, pushbuttons, and the like, especially in the form of a toggle switch.Alternatively or additionally, the user can operate the device via a wirelessly connected control unit, which could be a mobile device such as a smartphone. For example, the user can select at least one folded-down angle position of the folding frame, as well as its horizontal orientation. Further folded-down angle positions can also be predefined and selected. Alternatively or additionally, the user can also move the folding frame continuously. This can increase the range of uses and user comfort.
[0037] According to an advantageous embodiment of the invention, the device has at least one linear locking mechanism configured to be switched between a fixed state, which prevents stepless movement along the linear direction of movement between the movable frame and the stationary support frame, or in at least one discrete position, preferably in the operating position and / or in the non-operating position, of the movable frame, and a movable state, which allows movement along the linear direction of movement between the movable frame and the stationary support frame, by means of an actuating element. Such an actuating element can, for example, be an electrical lock, a rod lock, a locking bolt with a receptacle, and the like, which can be operated or actuated, for example, by means of a thread or a rope, but also by means of a Bowden cable.
[0038] This allows the user to move the movable frame horizontally or to position it in a fixed position. Infinitely variable adjustment can increase the user's options. Limiting this adjustment to discrete positions can minimize implementation effort. In any case, enabling a fixed locking mechanism for the movable frame relative to the fixed support frame in the non-use position can increase the device's safety when not in use, particularly on a vehicle roof. Furthermore, a fixed locking mechanism for the movable frame relative to the fixed support frame in the use position can simplify the folding of the folding frame relative to the fixed support frame.
[0039] According to an advantageous embodiment of the invention, the device has at least one drive, preferably electric, hydraulic, or pneumatic, which is configured to move the movable frame relative to the stationary support frame along the linear direction of movement. This also relieves the user of this type of movement, as described above, and thus simplifies or makes the use more comfortable.
[0040] According to an advantageous embodiment of the invention, the device has at least one support roller, which is arranged on the stationary support frame or is designed to be arranged stationary on the stationary body. The support roller is designed to receive the foldable support frame from below in a rollable manner in the vertical direction and to support it in the folded state. This makes it possible to support the foldable support frame on the support roller in the folded state, so that part of the weight of the foldable support frame, and possibly of the first load it carries, is transferred via the support roller to the stationary body, thus relieving the movable connections between the foldable support frame, the foldable support frame, and the stationary support frame. This allows these movable connections to be designed with less strength or increases their service life.The use of the support roller can therefore depend on the application and the design of the foldable support frame or the first load to be supported.
[0041] According to an advantageous embodiment of the invention, the foldable frame is designed to be completely closed, or at least completely closed, at least in the fold-down section, preferably by means of an awning. This allows the foldable frame of the device according to the invention to be used, for example, as an attachment to a roof rack on a vehicle, additionally as sun protection or rain protection, by extending the frame at least partially or completely in the linear direction of movement and, if necessary, additionally folding it downwards in the vertical direction. The user can then place, for example, a tarpaulin or the like over the foldable frame to keep out sun or rain. For this purpose, the foldable frame can also be designed to be completely closed.The foldable frame can also include a closed element, preferably extendable along its longitudinal direction, similar to an awning. In any case, this can increase the possible uses of the device according to the invention, particularly in a vehicle.
[0042] According to an advantageous embodiment of the invention, the stationary support frame is designed to accommodate at least a second load in a fixed position along the linear direction of movement, such that the movable frame is arranged vertically below the second load when not in use. In other words, at least two loads can be arranged one behind the other along the linear direction of movement, the first load being movable by means of the movable frame as described above and foldable down by means of its foldable support frame.Above the folding support frame and the section of the folding load-bearing frame that is rotatably connected to the folding support frame and folds up, the space located there can be used for the fixed or detachable placement of the second load, since the movable frame is horizontally flat both in the non-use position and during linear movement between the non-use and use positions, and can therefore be moved below the second load. In this way, this space in the vertical direction above the device according to the invention can also be used to accommodate further loads, which can be arranged there.
[0043] The present invention also relates to a stationary body characterized by at least one device for carrying loads as described above. Such a stationary body can be the roof of a vehicle, as previously described. A corresponding stationary body can also be a shelf or a piece of furniture, as previously described. In each case, the device according to the invention can be used as intended, and its properties and advantages can be utilized. Several devices according to the invention can also be used together, for example, in a vehicle, offset from one another in the direction of travel and oriented laterally in the same or opposite directions, to increase the range of possible uses.
[0044] An exemplary embodiment and further advantages of the invention are presented and explained in more detail below in purely schematic terms in connection with the following figures. These figures show: Fig. 1 a schematic representation of a stationary body in the form of a vehicle roof of a vehicle with a device according to the invention in a non-use position; Fig. 2 the representation of the Fig. 1 with the device according to the invention in a service position with the first load folded down; Fig. 3 a perspective representation of the Fig. 1 without loads from diagonally right above; Fig. 4 the representation of the Fig. 3 with partially extended movable frame; Fig. 5 a perspective view of the device according to the invention with the movable frame in the operating position from an oblique front top view; Fig. 6 the representation of the Fig. 5 from the side, from above; Fig. 7 a perspective view of the device according to the invention with the foldable carrying frame folded down, from an oblique front top view; Fig. 8 a detailed view of the Fig. 7 from the diagonally front top; Fig. 9 a detailed view of the Fig. 7 diagonally from the side; and Fig. 10 A detailed view of the second, right-hand side of the frame from a diagonal front top view.
[0045] The figures above are viewed in Cartesian coordinates. A longitudinal direction X extends, which can also be called depth X or length X. Perpendicular to the longitudinal direction X extends a transverse direction Y, which can also be called width Y. Perpendicular to both the longitudinal direction X and the transverse direction Y extends a vertical direction Z, which can also be called height Z and corresponds to the direction of gravity. The longitudinal direction X and the transverse direction Y together form the horizontal X,Y, which can also be called the horizontal plane X,Y.
[0046] A device 1 according to the invention for carrying loads 19a, 19b is considered using the example of a roof rack attachment 1. A vehicle 2 has a vehicle roof 20, which indirectly receives the roof rack attachment 1 according to the invention as a stationary body 20, since a roof rack 21 with a first, left roof rack rail 21a and a second, right roof rack rail 21b is provided on the vehicle roof 20 as an adapter 21. These rails run parallel to each other in the transverse direction Y and offset in the longitudinal direction X. The roof rack attachment 1 according to the invention is fixedly arranged on the roof rack 21. Alternatively, this could also be done on roof rails 21 of the vehicle roof 20.
[0047] The roof rack attachment 1 according to the invention essentially comprises, firstly, a fixed support frame 10, which is formed by a first, left support frame leg 10a and a second, right support frame leg 10b. The two support frame legs 10a, 10b run parallel to each other, offset in the longitudinal direction X and aligned in the transverse direction Y. The two support frame legs 10a, 10b are each fixedly arranged at their two ends on the two roof rack rails 21a, 21b, see for example the figure. Fig. 3. Furthermore, two support rollers 11, which can also be referred to as support rollers 11, are arranged on the second, right-hand roof rack rail 21b, wherein a first, left-hand support roller 11a is arranged directly inside the first, left-hand support frame leg 10a and a second, right-hand support roller 11b is arranged directly inside the second, right-hand support frame leg 10b, see for example also Fig. 3.
[0048] Secondly, the roof rack attachment 1 according to the invention essentially comprises a movable frame 13, which can also be referred to as an extension 13. The movable frame 13 is arranged in the longitudinal direction X between the two support frame legs 10a, 10b, see for example the figure shown. Fig. 1 or Fig. 3, which corresponds to a non-use position of the roof rack attachment 1 according to the invention, as will be described in more detail below. The movable frame 13 is linearly to the right in the transverse direction Y relative to the stationary support frame 10, viewed, for example, from the perspective of Fig. 1 and Fig. 2, movable or displaceable by means of an extension movement A, which is why the transverse direction Y can also be referred to as the linear direction of movement Y.
[0049] The movable frame 13, viewed in the transverse direction Y, is divided into two parts: a hinged support frame 14 and a hinged load-bearing frame 16, which are hinged together in the vertical direction Z by several hinges 15. The hinged support frame 14 is rectangular in the horizontal X, Y and extends essentially in the longitudinal direction X. The hinged load-bearing frame 16 is also rectangular in the horizontal X, Y, but extends essentially in the longitudinal direction Y, see for example Fig. 4.
[0050] The folding support frame 14 has a first, left support frame leg 14a facing the first, left support frame leg 10a, and a second, right support frame leg 14b facing the second, right support frame leg 10b. These support frames are each aligned in the transverse direction Y and run parallel to the inside of the support frame legs 10a and 10b. The two support frame legs 14a and 14b are rigidly connected to each other in the longitudinal direction X by two parallel support frame crossbeams 14c and 14d. The first, rear support frame crossbeam 14c faces away from the folding support frame 16 in the transverse direction Y, and the second, front support frame crossbeam 14d faces the folding support frame 16 in the transverse direction Y. A support frame column 14e runs parallel to the two support frame legs 14a, 14b and in the longitudinal direction X centrally between the two support frame crossbeams 14c, 14d, see for example Fig. 4.
[0051] Analogous to the folding support frame 14, the folding load-bearing frame 16 has a first, left load-bearing frame leg 16a facing the first, left support frame leg 10a and a second, right load-bearing frame leg 16b facing the second, right support frame leg 10b. These load-bearing frame legs are each aligned in the transverse direction Y and run parallel to and inside the support frame legs 10a and 10b. The two load-bearing frame legs 16a and 16b are fixedly connected to each other in the longitudinal direction X by two load-bearing frame crossbeams 16c and 16d running parallel to each other. The first, rear load-bearing frame crossbeam 16c faces the folding support frame 14 in the transverse direction Y, and the second, front load-bearing frame crossbeam 16d faces away from the folding support frame 14 in the transverse direction Y.In the longitudinal direction X, a support frame 16e runs parallel to the two support frame legs 16 a, 16 b and in the longitudinal direction X centrally between the two support frame crossbeams 16c, 16d, see for example . Fig. 4.
[0052] The movable frame 13 is connected via movement means 12 both in the longitudinal direction X left to the first, left support frame leg 10a and in the longitudinal direction X right to the second, right support frame leg 10b, so that the movable frame 13 can be moved in the transverse direction Y as a linear movement direction Y relative to the fixed support frame 10 between a fully retracted non-use position and a use position. In the use position, the foldable support frame 16 extends so far in the transverse direction Y beyond the fixed support frame 10 to the right that the section of the foldable support frame 16 which remains within the fixed support frame 10 corresponds approximately to the foldable support frame 14.
[0053] The movement means 12 can, for example, be implemented as guide rails 12a, 12d with rollers 12b, 12c, 12e, 12f, by arranging a first, left guide rail 12a facing the movable frame 13 on the inside of the first, left support frame leg 10a, and a second, right guide rail 12d facing the movable frame 13 on the inside of the second, right support frame leg 10b. The first, left operating frame leg 16a has, facing the first, left guide rail 12a, a left flap element 16g with a first, left front roller 12b, which is guided in the first, left guide rail 12a, where the first, left operating frame leg 16a is opposite the end of the first, left support frame leg 10a in the longitudinal direction X in the operating position.Opposite the first, right-hand support frame leg 16b in the longitudinal direction X, it has a right-hand hinge element 16h with a third, right-hand front roller 12e, which in turn is guided in the second, right-hand guide rail 12d. Facing the first, left-hand guide rail 12a, the folding support frame 14 has, in the area of the first, rear support frame cross member 14c, a second, left-hand rear roller 12c located on the outside of its first, left-hand support frame leg 14a, which is also guided in the first, left-hand guide rail 12a. The folding support frame 14 also has a fourth, right-hand rear roller 12f opposite the first, right-hand guide rail 12d in the longitudinal direction X, which in turn is also guided in the second, right-hand guide rail 12d.
[0054] By means of the two rear rollers 12c, 12f, the folding support frame 14 can be moved linearly in the transverse direction Y relative to the stationary support frame 10, and can also be folded upwards in the vertical direction Z with its first, rear support frame crossbeam 14c acting as a pivot axis. By means of the two front rollers 12b, 12e, the folding load frame 16 can, in turn, be moved linearly in the transverse direction Y relative to the stationary support frame 10, and can also be folded upwards in the vertical direction Z with its two folding elements 16g, 16h acting as a pivot axis. The section facing the folding support frame 14, which is relatively short in the transverse direction Y, can be folded upwards in the vertical direction Z, while the section facing away from the folding support frame 14, which is relatively long in the transverse direction Y and can bear a first load 19a, can be folded downwards in the vertical direction Z by means of a folding movement B, see for example Fig. 2, which can only be done in the operating position in order to have the necessary clearance laterally past vehicle 1 in the vertical direction Z downwards.
[0055] Here, the two frame legs 16a, 16b can rest on the two support rollers 11a, 11b, so that when the folding frame 16 is folded, part of the weight of the folding frame 16 and the first load 19a can be absorbed by the support rollers 11a, 11b and transferred directly to the roof rack 21, see for example Fig. 9 and Fig. 10, which can relieve the two folding elements by 16g, 16h accordingly.
[0056] In the folded state of the folding load frame 16, the folding support frame 14, and the fixed support frame 10 form a force triangle, in which the weight of the folding support frame 16 and the first load 19a can be transferred around the axis of rotation of the two folding elements 16g, 16h via the hinges 15 onto the folding support frame 14 and from there via the two rear rollers 12c, 12f to the fixed support frame 10. By means of this leverage effect of the folding load frame 16, comparatively large weight forces can be absorbed and safely transferred via the fixed support frame 10 to the roof rack 21, which, as described above, can be further supported by the support rollers 11. In this way, the roof rack attachment 1 according to the invention can absorb comparatively large weight forces of the first load 19a and yet be of a comparatively light and compact design.
[0057] Between the folding support frame 14 and the folding load-bearing frame 16, a damping element 17 in the form of a gas spring 17 is arranged on the left and right sides in the longitudinal direction X, see for example Fig. 2 and Fig. 8. A first, left damping element 17a is arranged between the first, left support frame leg 14a and the first, left load frame leg 16a. A second, right damping element 17b is arranged analogously between the second, right support frame leg 14b and the second, right load frame leg 16b.
[0058] The two damping elements 17a, 17b can be designed and arranged between the folding support frame 14 and the folding load frame 16 such that they can absorb, for example, the entire weight of the folding load frame 16. This means the user only needs to hold or absorb the weight of the first load 19a downwards in the vertical direction Z and lift or push it upwards in the vertical direction Z, thus simplifying the handling and folding of the folding load frame 16. Alternatively, the two damping elements 17a, 17b can be designed and arranged to absorb part of the weight of the first load 19a as described above, further simplifying the handling and folding of the folding load frame 16 for the user.When pushing upwards in the vertical direction Z, the load can be relieved more effectively; however, without an initial load 19a, it may be necessary to pull the foldable support frame 16 downwards in the vertical direction Z. The arrangement of the two damping elements 17a, 17b can be changed on both the foldable support frame 14 and the foldable support frame 16 to alter the force absorption by the damping elements 17, so that the previously described effect or function of the damping elements 17 can be easily changed or adjusted by the user according to their preferences.
[0059] The two damping elements 17a, 17b are further designed such that they can be switched between a movable state and a fixed state, similar to a gas spring in an office chair. For this purpose, the folding support frame 16 has an actuating element 17g for the damping elements 17a, 17b, which is received centrally in the longitudinal direction X on the first, rear support frame cross member 16c by an actuating element receptacle 16f. The actuating element 17d of the two damping elements 17a, 17b is connected to the first, left damping element 17 via a first, left damping element actuating element 17c in the form of a thread or a Bowden cable and to the second, right damping element 17b via a second, right damping element actuating element 17d in the form of a thread or a Bowden cable.The first, left damping element actuation 17c runs diagonally from the actuating element receptacle 16f towards the left flap element 16g, where the first, left damping element actuation 17c is deflected by a first, left guide 17e in the transverse direction Y and guided in a straight line to the first, left damping element 17a, see for example . Fig. 4 and Fig. 6. Likewise, the second, right damping element actuation 17d initially runs diagonally towards the right flap element 16h, where the second, right damping element actuation 17d is deflected by a second, right guide 17f in the transverse direction Y and guided in a straight line to the second, right damping element 17b.
[0060] When the user pulls the common actuating element 17g of both damping elements 17a, 17b, the damping elements 17 are moved into the movable state and the user can fold the foldable frame 16 downwards or upwards in the vertical direction Z with damping. When the user releases the common actuating element 17g of the damping elements 17, the two damping element actuating elements 17c, 17d are retracted, for example by spring force, and the damping elements 17 each return to the fixed state, in which the folding of the foldable frame 16 is blocked and the current continuously adjustable angular position of the foldable frame 16 is automatically maintained.
[0061] Linear locking devices 18 are also provided to position the movable frame 13 in a fixed position along the transverse direction Y as a linear direction of movement Y relative to the stationary support frame 10. For this purpose, a first, left linear locking device 18a is provided in the area of the left flap element 16g, which can lock the part of the left flap element 16g that is connected to the first, left front roller 12b relative to the first, left guide rail 12a, see for example Fig. 5 and Fig. 6. Likewise, a second, right-hand linear locking mechanism 18b is provided in the area of the right-hand flap element 16h to secure the part of the right-hand flap element 16h which is connected to the third, right-hand front roller 12e, relative to the second, right-hand guide rail 12d, see for example Fig. 10. This can be implemented, for example, by spring-loaded locking elements that act in the longitudinal direction X and can engage in corresponding receptacles, which can be provided at least in the area of the non-use position and the use position, in order to be able to hold the movable frame 13 securely at least in these positions.
[0062] To enable the movable frame 13 to move back and forth in the transverse direction Y relative to the stationary support frame 10 as a linear movement direction Y, the linear detents 18 can each be released together and thus set into a movable state. For this purpose, a first, left linear detent actuation 18c in the form of a thread extends from the actuation element receptacle 16f of the hinged support frame 16 on the left of the support frame 16e in the transverse direction Y to a first, left guide 18e or deflection 18e at the level of the left flap element 16g, in order to run from there at a right angle in the longitudinal direction X to the first, left linear detent 18a. Likewise, a second, right linear locking actuation 18d extends to the right of the load frame support 16e up to the level of the right flap element 16h to a second, right guide 18f or deflection 18f, in order to run from there at right angles in the longitudinal direction X to the second, right linear locking actuation 18b.Both linear locking actuators 18c, 18d are connected to a common actuating element 18g beyond the actuating element receptacle 16f, so that by pulling the common actuating element 18g the linear locking devices 18 can be released or placed in a released state in order to move the movable support frame 13 relative to the stationary support frame 10 in the transverse direction Y as a linear direction of movement Y.
[0063] Since the movable frame 13 is always folded flat into the horizontal X, Y between the non-use position and the use position along the transverse direction Y, the roof rack attachment 1 has a left side, from the perspective of Fig. 1 and Fig. In section 2, a second load 19b is added to utilize this space for load storage. The first load 19a, which can be moved and folded as described above, is positioned to the right of the movable frame 13 in its non-use position, so that the space above the movable frame 13 can be utilized as completely as possible.
[0064] The first load 19a can be a first load-bearing device 19a, such as a rack or frame, for directly supporting items like a ladder, a bicycle, or the like. The first load 19a can also be a first storage device 19a, for example, in the form of a first box 19a, in which items such as tools, clothing, and the like can be stored securely. This applies accordingly to the second load 19b. Due to the possibility of folding the first load 19a down to the side of the vehicle 1, thus making it very easily accessible to the user at chest height, see, for example, Fig. 2. The first load 19a can preferably be a first stowage device 19a. The fixedly arranged second load 19b, on the other hand, can preferably be a fixed second load-bearing device 19b, for example in the form of a wire mesh basket, in order to be able to place and secure objects in it from above. REFERENCE MARK LIST (Part of the description) A withdrawal movement B Folding movement X Longitudinal direction; Depth; Length Y transverse direction; width; linear direction of movement Z vertical direction; height X, Y Horizontal; horizontal plane 1 Device for carrying loads 19a, 19b; roof rack attachment 10 fixed support frames 10a first, left support frame leg 10b second, right support frame leg 11 carrying rollers; support rollers 11a first, left carrying roller; first, left support roller 11b second, right-hand carrying roller; second, right-hand support roller 12 Means of movement; running rail 12a, 12d with rollers 12b, 12c, 12e, 12f 12a first, left running rail of the first, left support frame leg 10a 12b first, left front roller; first, left front running roller 12c second, left rear roller; second, left rear running roller 12d second, right running rail of the second, right support frame leg 10b 12e third, right front roller; third, right front running rollers 12f fourth, right rear roller; fourth, right rear running rollers 13 movable frames; excerpt 14 folding support frames 14a first, left support frame leg 14b second, right support frame leg 14c first, rear support frame crossmember 14d second, front support frame crossmember 14e Support frame support 15 hinges 16 folding utility frames 16a first, left load frame leg 16b second, right-hand frame leg 16c first, rear load frame crossmember 16d second, front load frame crossmember 16e Utility frame support 16f Actuator mounting 16g left folding element 16h right folding element 17 Damping elements; gas springs 17a first, left damping element 17b second, right damping element 17c first, left damping element actuation of the first, left damping element 17a 17d second, right damping element actuation of the second, right damping element 17b 17e first, left guide of the first, left damping element actuation 17c 17f second, right guide of the second, right damping element actuation 17d 17g Actuating element of the damping elements 17a, 17b; Pull handle of the damping elements 17a, 17b 18 linear detents 18a first, left linear detent 18b second, right linear detent 18c first, left linear locking actuation of the first, left linear locking 18a 18d Second, right linear locking actuation of the second, right linear locking mechanism 18b 18e First, left guide or deflection of the first, left linear locking actuation 18c 18f second, right guide or deflection of the second, right linear locking actuation 18d 18g Actuating element of the linear detents 18a, 18b; Pull handle of the linear detents 18a, 18b 19a first load; first lifting device; first stowage device; first box 19b second load; second lifting device; second stowage device; second box 2 vehicles 20 fixed bodies; vehicle roof 21 adapters; roof rack; roof rails 21a first, left roof rack rail 21b second, right roof rack rail
Claims
[1] Device (1) for carrying loads (19a, 19b) with a fixed support frame (10) which is designed to be held in a fixed position on a fixed body (20), and with a movable frame (13) which is movably connected to the fixed support frame (10), wherein the movable frame (13) is further configured to be positioned horizontally (X, Y) relative to the stationary support frame (10). a non-use position in which the movable frame (13) is at least substantially received by the fixed support frame (10), and a position of use in which the movable frame (13) projects at least partially beyond the fixed support frame (10), to be moved along a linear direction of motion (Y), wherein the movable frame (13) has a foldable support frame (14) and a foldable utility frame (16) along the linear direction of movement (Y), wherein the folding support frame (14) is rotatably connected to the fixed support frame (10) and foldably connected to the folding utility frame (16), wherein the foldable support frame (16) is rotatably connected to the fixed support frame (10) and is designed to bear at least one first load (19a) in the vertical direction (Z), wherein the foldable support frame (16) is further designed to be in the operating position relative to the fixed support frame (10) facing the folding support frame (14) together with the folding support frame (14) being folded up and held by the folding support frame (14) and facing away from the folding support frame (14) being folded down in the vertical direction (Z) and lowering the first load (19a) in the vertical direction (Z), characterized by , that the movable frame (13) between the foldable support frame (14) and the foldable utility frame (16) has at least one damping element (17) which is designed to absorb at least part of the weight force of the foldable utility frame (16). [2] Device (1) according to claim 1, characterized by , that the fixed support frame (10), the folding support frame (14) and the folding utility frame (16) form a triangle pointing upwards in the vertical direction (Z) when folded. [3] Device (1) according to claim 1 or 2, characterized by, that the section of the folding load frame (14) that is folded down when the folding load frame (14) is longer than the section of the folding load frame (14) that is folded up. [4] Device (1) according to any one of the preceding claims, characterized by , that both the folding support frame (14) and the folding utility frame (16) are connected to the fixed support frame (10) via means of movement (12) both translationally in the linear direction of movement (Y) and rotationally relative to the linear direction of movement (Y). [5] Device (1) according to any one of the preceding claims, characterized by , that the damping element (17) is designed to fully absorb at least the weight force of the folding load frame (16). [6] Device (1) according to any one of the preceding claims, characterized by, that the damping element (17) is designed to accommodate different weight forces by changing the arrangement between the foldable support frame (14) and the foldable utility frame (16). [7] Device (1) according to any one of the preceding claims, characterized by , that the damping element (17) is designed by means of an actuating element (17g) between a fixed state which prevents the folding between the folding support frame (14) and the folding utility frame (16) steplessly or in at least one discrete angular position of the folding utility frame (16), and a movable state which allows folding between the foldable support frame (14) and the foldable utility frame (16), to be switched over. [8] Device (1) according to any one of claims 1 to 6, characterized by, that a folding locking mechanism is arranged and designed between the folding support frame (14) and the folding utility frame (16), between the folding utility frame (16) and the fixed support frame (10) or between the folding support frame (14) and the fixed support frame (10) to prevent the folding of the folding utility frame (16) in at least one discrete angular position of the folding utility frame (16). [9] Device (1) according to any one of claims 1 to 4, characterized by at least one drive which is designed to fold the folding load frame (16) relative to the folding support frame (14) in the operating position. [10] Device (1) according to any one of the preceding claims, characterized by at least one linear detent (18) which is designed to be engaged by means of an actuating element (18g) between a fixed state which prevents movement along the linear direction of movement (Y) between the movable frame (13) and the stationary support frame (10) continuously or in at least one discrete position of the movable frame (13), and a movable state which allows movement along the linear direction of movement (Y) between the movable frame (13) and the stationary support frame (10), to be switched over. [11] Device (1) according to any one of claims 1 to 9, characterized by at least one which is designed to move the movable frame (13) relative to the stationary support frame (10) along the linear direction of movement (Y). [12] Device (1) according to any one of the preceding claims, characterized by at least one support roller (11), which is arranged or formed on the stationary support frame (10), is to be arranged stationary on the stationary body (20), wherein the support roller (11) is designed to receive the foldable utility frame (16) in the vertical direction (Z) from below in a rollable manner and to support it in the folded state. [13] Device (1) according to any one of the preceding claims, characterized by , that the foldable utility frame (16) is designed to be fully closed or fully closeable, at least in the foldable section. [14] Device (1) according to any one of the preceding claims, characterized by , that the fixed support frame (10) is designed to accommodate at least a second load (19b) in a fixed position along the linear direction of movement (Y) such that the movable frame (13) is arranged in the non-use position in the vertical direction (Z) below the second load (19b). [15] Stationary body (20), characterized by at least one device (1) for carrying loads (19a, 19b) according to one of the preceding claims.
Citation Information
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