DE202018006607U1 - Heavy duty pull-out - Google Patents

Abstract

Pull-out, in particular heavy-duty pull-out for installation in a motor vehicle, with two stationary guide rails (2) arranged parallel and spaced apart from one another and extending along a pull-out direction (A), each with one extension rail (2) arranged parallel to the two guide rails (2) at a vertical distance from one another ( 3), which is movable in the pull-out direction (A) with respect to the respective guide rail (2), with a first and second connecting strut (16, 17) extending transversely to the pull-out direction (A) and connecting the pull-out rails (3) and one of the guide rails (2) connecting first and second base struts (18, 19), characterized in that the guide rails (2) and / or the pull-out rails (3) have a groove system which
- Grooves (7) for receiving a transport plate (8) or a transport tray and
- Connecting grooves (45) for fastening the connecting struts (16,17) and
- Includes securing grooves (6) for securing loads.

Description

The invention relates to a pull-out, in particular a heavy-duty pull-out for installation in a motor vehicle, with two stationary or vehicle-fixed guide rails which are arranged parallel and spaced apart from one another and extend along a pull-out direction.

Pull-out systems for heavy loads based on two- or three-part rail systems are known from the prior art. Due to the relatively complex mechanical structure, these systems often lack flexible adaptability to customer requirements, in particular with regard to the extendable length of the extension. Furthermore, the adaptation of the known rail systems to different widths of the extension is not possible or only possible with great effort.

Such pull-out systems are installed, for example, in the interiors of vehicles, for example in utility vehicles, workshop vehicles or in station wagons. The pull-out systems are also mounted on the loading areas of pick-up vehicles. It is important that the systems are reliably secured against unintentional opening due to the vibrations and shocks that occur while driving. In particular in the event that heavy loads or objects are stored in or on such a pull-out, it is of particular importance to protect the pull-out against unintentional opening, e.g. if objects slip while driving.

From the DE 94 07 734 U1 a drawer lock for workshop vehicles or storage cabinets is known which has two locking bars which can be moved transversely to the direction of displacement of the drawer. The locking rods are attached via loops to two deflection arms, which are jointly engaged by an actuating element. When the actuating element is pivoted, the two deflection arms are each rotated inward, whereby the locking rods attached to them are simultaneously pulled inward against the action of two springs and thus cancel the locking. Snap-in parts provided with inclined surfaces are attached to the outwardly pointing ends of the locking rods, so that the locking rods lock automatically when the drawer is closed. Devices of this type can only be produced in a relatively expensive manner. Due to the complex locking mechanism, such systems are difficult to adapt to customer requirements.

From the DE 100 05 042 C1 a locking device for a drawer or the like running in a housing is known, in particular for installation in a motor vehicle. The device there comprises at least one locking rod which can be moved transversely to a direction of displacement of the drawer and which can be held in a locking position by means of an elastic pressing means in which a free end of the locking rod engages in a recess in the housing. An actuating element is used to move the locking rod. Furthermore, the structure there has a deflection device with which the movement of the actuating element can be deflected onto the locking rod in such a way that it can be moved out of the recess into an unlocking position against the force exerted by the pressing means. The deflection device comprises a deflection arm, one end of which can be deflected by the actuating element and the other end of which engages the locking rod in a form-fitting manner, the connection between the other end and the locking rod being designed as a snap connection. Due to the complex structure of the DE 100 05 042 C1 described locking device, load pull-outs equipped with such a locking device are hardly suitable for flexible adaptation to customer requirements.

Accordingly, the present invention is based on the object of providing a pull-out, in particular a heavy-duty pull-out, in particular for installation in a motor vehicle, which is robustly constructed, enables flexible adaptation to customer requirements and which can be manufactured inexpensively.

To solve this problem, a pull-out, in particular a heavy-duty pull-out for installation in a motor vehicle, with the features of claim 1 is proposed.

The pull-out according to the invention is in particular a heavy-duty pull-out, in particular for installation in a motor vehicle. For example, the pull-out can be suitable for installation in transport and utility vehicles, workshop vehicles, station wagons, caddies and, in particular, for installation on the loading areas of pickup trucks or flatbed trucks, etc. The pull-out can also be used in the context of pull-out systems used in other means of transport. A possible use in transport aircraft or transport ships is mentioned only as an example. In principle, stationary use is also conceivable, e.g. on a lifting platform in a workshop or on scaffolding. The pull-out according to the invention is not restricted to a sole use, rather the pull-out can be integrated into a pull-out system consisting of several such or similar pull-outs, e.g. in the manner of a multiple drawer.

The pull-out according to the invention is particularly suitable for fastening heavy objects, such as compressors.

According to the invention, it is a pull-out with two stationary guide rails which are arranged parallel to and spaced apart from one another and extend along a pull-out direction. If the pull-out is mounted in a motor vehicle, the guide rails are fixed to the vehicle. The guide rails are preferably profiles, preferably metal profiles or plastic profiles. Forming the profiles as extruded profiles is particularly suitable. The profiles are preferably made of aluminum, particularly preferably they are extruded aluminum profiles.

The guide rails can be firmly connected to the vehicle via suitable fastening means, for example by screwing. For this purpose, the guide rails can have openings through which suitable fastening screws or fastening bolts protrude in the direction of a fastening partner (e.g. the vehicle floor or a metal frame). The openings can be provided with an internal thread which corresponds to an external thread provided on the fastening screws or fastening bolts. Alternatively, fastening flanges can be provided on the guide rails, by means of which a vehicle-fixed fastening is ensured, e.g. by screwing. In a further alternative, it is conceivable to weld the guide rails to a component that is fixed to the vehicle.

According to the invention, the pull-out is provided with a pull-out rail which is arranged parallel to the two guide rails at a vertical distance and which is movable in the pull-out direction with respect to the respective guide rail.

The pull-out further comprises a first and second connecting strut extending transversely to the pull-out direction and connecting the pull-out rails to one another. By connecting the parallel pull-out rails via the connecting struts, the pull-out rails can be pulled out at the same time. In addition, the connecting struts stabilize the overall structure of the extension.

The first and second connecting struts are preferably designed as separate components. However, within the scope of the invention it is also possible to make the first and second connecting struts in one piece or to connect the two connecting struts to one another, for which purpose cross-connecting parts or the like can be provided. It is also possible to form additional connecting struts in order to connect the pull-out rails to one another.

Insofar as a one-piece design of the two connecting struts (or several connecting struts) is provided, the feature of the first connecting strut or second connecting strut is to be understood in such a way that they are correspondingly formed analogously by an area or part of the connecting strut.

The pull-out according to the invention furthermore comprises a first and second base strut connecting the guide rails to one another.

The first and second base struts are preferably designed as separate components and are fixed directly or indirectly to the vehicle. However, within the scope of the invention it is also possible to make the first and second base struts in one piece or to connect the two base struts to one another, for which purpose cross-connecting parts or the like can be provided. It is also possible to form additional basic struts in order to connect the pull-out rails to one another.

Insofar as a one-piece design of the two base struts (or of several base struts) is provided, the feature first base strut or second base strut is to be understood such that they are correspondingly formed analogously by an area or part of the base strut.

The first connecting or base strut is preferably arranged at a first end and the second connecting or base strut is preferably arranged at a second end of the guide or pull-out rail. However, it does not have to be the end directly, but rather an end area in each case within the scope of the invention.

As will be explained in more detail later, both the connecting struts and the base struts can be part of a locking mechanism associated with the extension.

• - Nuten zur Aufnahme einer Transportplatte oder einer Transportwanne und/oder
• - Verbindungsnuten zur Befestigung der Verbindungsstreben und/oder
• - Sicherungsnuten zur Ladungssicherung und/oder
• - Verbindungsnuten zur Befestigung der Basisstreben und/oder zur ortsfesten Festlegung der Führungsschienen und/oder
• - Verbindungsnuten zur ortsfesten Festlegung der Führungsschienen und/oder
• - Befestigungsschienen zur ortsfesten Festlegung der Führungsschienen umfasst.

According to the invention, the guide rails and / or the pull-out rails have a system of grooves which

• - Grooves for receiving a transport plate or a transport tray and / or
• - Connection grooves for fastening the connecting struts and / or
• - Securing grooves for securing loads and / or
• - Connecting grooves for fastening the base struts and / or for the fixed fixing of the guide rails and / or
• - Connection grooves for the fixed definition of the guide rails and / or
• - Includes mounting rails for the fixed fixing of the guide rails.

The groove system according to the invention makes it possible to respond flexibly to customer requests in a simple and cost-effective manner, in particular to provide extracts with different lengths and / or different widths in a simple manner without major changes or changes at all to the guide rails and the pull-out rails having to be made .

Because the groove system can have grooves for receiving a transport plate or a transport tray, transport plates or transport trays of different widths can be used without having to change the guide rails or the pull-out rails. For this it is only necessary to select the distance between two guide rails or the distance between two pull-out rails accordingly. Different lengths can also be realized in a simple manner in that the pull-out rails or the guide rails are correspondingly cut to length. No further changes are necessary here.

Because the groove system can have connecting grooves for fastening the connecting struts, it is possible to position the connecting struts in any suitable position. This means that different lengths and widths of the extension can be implemented without the need for structural changes. The connecting struts can be fastened by known means, for example also using slot nuts that are inserted into the connecting grooves.

Because the groove system according to the invention can have securing grooves for securing the load, the load to be transported, for example a load that is placed on the transport plate or the transport trough, can be secured in a simple manner without further measures being necessary on the transport plate or the transport trough . The load can be secured through the groove system of the guide rails or the pull-out rails.

Because the groove system according to the invention can have connecting grooves for fastening the base struts, the base struts, similar to what was shown with regard to the connecting struts, can be set in a simple and arbitrary manner, regardless of the length or width of the extension, without the guide rails this must be changed constructively. As an alternative or in addition to this, the connecting grooves can also be used to fix the guide rails in a fixed position. For this purpose, corresponding connecting elements can be inserted into the connecting grooves, which are then fixedly or fixedly connected to a vehicle, for example directly connected to a vehicle or a frame, preferably screwed. The connecting grooves make it possible that the connecting elements can be attached at a suitable position within the connecting grooves regardless of the length or the width of the extension, for which purpose slot nuts or the like can again be used if necessary.

Because the groove system according to the invention can have connecting grooves for the fixed fixing of the guide rails, it is possible to fix the guide rails independently of the length and width of the extension at suitable points without changes to the guide rails being necessary. As already described, it can be fixed or fixed to the vehicle, for example on a vehicle or a frame and optionally with the aid of sliding blocks or other connecting or fastening elements.

The groove system according to the invention can furthermore comprise fastening grooves for the fixed fixing of the guide rails. The formation of fastening grooves, which are provided for the fixed or vehicle-fixed fixing of the guide rails, ensures that the guide rails can be suitably fixed in a simple manner, regardless of the length and width of the extension, without changes to the guide rails are necessary.

The groove system according to the invention is already advantageous if only one of the grooves described above (grooves, connecting grooves, securing grooves, fastening grooves) are provided. However, the groove system according to the invention leads in particular to a particularly advantageous extension when the groove system has one, two, three, four, five, six, seven or more of the grooves described above.

The groove system according to the invention can be composed of any combination of the aforementioned grooves.

The grooves of the groove system preferably each extend over the full length of the Guide rails or the pull-out rails, for which it is particularly suitable if the guide rails and / or the pull-out rails are designed as profiles.

The guide rails and / or the pull-out rails can be constructed identically, but this is not necessary within the scope of the invention. It can be provided that the pull-out rails and the guide rails are designed differently. For example, it is possible that only the pull-out rails or the guide rails are designed as profiles. Furthermore, the pull-out rails and the guide rails can be made from different profiles. In principle, it is also possible for the two guide rails of the extension to be designed differently, for example made of different profiles, in particular also with grooves that differ from one another. The same applies to the pull-out rails.

It is advantageous if the pull-out rails have the grooves and / or the securing grooves and / or the connecting grooves for fastening the connecting struts.

Such a configuration has proven to be advantageous. It is particularly advantageous if at least two, preferably all three of the grooves mentioned are provided on the pull-out rails.

It is also advantageous if the guide rails have the connection grooves for the fixed fixing of the guide rails and / or the connection grooves for fixing the base struts and / or for the fixed fixing of the guide rails and / or the fixing grooves.

This configuration has proven to be particularly advantageous. The guide rails preferably have at least two, preferably all three of the grooves mentioned.

In a particularly preferred embodiment, the guide rails and the pull-out rails are made from structurally identical profiles.

This significantly reduces the production effort and, at the same time, the production costs. In addition, the identical design of the guide rails and the pull-out rails enables quick and flexible adaptation to customer requirements. Because of the identical design, different components of the pull-out can be manufactured in a common manufacturing process with regard to their function. Furthermore, this enables a modular construction of the pull-out or the heavy-duty pull-out.

The guide rails and pull-out rails can be connected to other components in a modular manner. If the excerpt, for example, transversely to the pull-out direction, that is to say larger in its width, z. B. after a customer request, the modular guide and pull-out rails with the groove system according to the invention can easily be combined with base struts and connecting struts or a transport plate or a transport tray of greater width. A large number of sizes can be realized in the width direction.

The same applies to the dimensioning of the pull-out or heavy-duty pull-out in the longitudinal direction, i.e. in the pull-out direction. Here the system benefits from its groove system according to the invention in that the length of the guide rails and the pull-out rails can be varied while the width of the pull-out is constant. The constant width of the extension is made possible by the modular base struts and connecting struts that can be combined with the rails. The extension can also be adjusted in size both in the longitudinal direction and in the width direction.

It is particularly advantageous if a middle rail is arranged between the respective guide and pull-out rails, which is guided over rollers in the guide and pull-out rails and is movable in the pull-out direction with respect to the guide and pull-out rails.

A center rail is preferably arranged between the respective guide and pull-out rails, which is guided in the guide and pull-out rail via rollers and is movable in the pull-out direction with respect to the guide and pull-out rail. In the longitudinal direction of the central rail, that is to say along the extension direction, a plurality of running rollers can be fastened or supported on the central rail, for example via bearing shafts or roller bearings. The middle rails can be provided with rollers on both sides, i.e. on opposite sides. The rollers are preferably made of plastic, rubber or some other (partially) elastic material. The rollers can be arranged one above the other on the center rails in the vertical direction, the rollers arranged in one and the same vertical height position being guided in the guide rail or the pull-out rail.

The rollers are preferably arranged in horizontal rows on the middle rail. Several rows can be provided. A row of running rollers is preferably provided on both sides of the central rail, particularly preferably on both sides of the central rail two rows of rollers arranged one above the other.

The rollers of a roller row are preferably arranged at a distance from one another. The rollers are preferably at a distance from one another which corresponds to at least the diameter of the rollers, preferably three to twenty times, preferably four to ten times and particularly preferably five to eight times the diameter of the roller. It can be provided that individual rollers are arranged closer to one another. However, it has been found to be advantageous if at least three rollers are arranged in such a way that the predefined distance results between the middle of the three rollers and the rollers arranged laterally, in which case more than three rollers per row can also be provided. Insofar as a middle rail is provided, it can be sufficient if one of the rows of running rollers has the aforementioned, preferably provided design with regard to the spacing of the running rollers.

As already mentioned, it is advantageous if the central rail has two rows of rollers arranged one above the other on both sides. Preferably, the two upper rows of rollers are assigned to the pull-out rail and the two lower rows of rollers are assigned to the guide rail or are guided therein.

The guide rail and / or the pull-out rail preferably have two running surfaces or running tracks in which the running rollers are guided. The center rail is preferably positioned in such a way that the center rail is located between two running surfaces of the pull-out rail and also between two running surfaces of the guide rail. The guide rail or the pull-out rail and the middle rail are preferably positioned and designed such that an upper row of rollers in a first running surface or track of the pull-out rail and a second row of rollers formed on an opposite side of the middle rail in a second running surface or . The track of the pull-out rail is guided. The guide rail, which accommodates the two lower rows of rollers of the middle rail, is designed accordingly.

The design of the pull-out according to the invention with a central rail enables a particularly advantageous three-part construction of the pull-out (guide rail, central rail, pull-out rail), as a result of which the pull-out can be extended particularly far and at the same time has high stability.

It is advantageous if the fastening grooves are constructed identically or identical to the securing grooves and / or the connecting grooves for fastening the connecting struts are constructed identically or identically to the connecting grooves for fastening the base struts.

The fact that the fastening grooves and the securing grooves are of identical design results in a particularly advantageous construction of the extension. It is also advantageous if the connecting grooves for fastening the connecting struts and the connecting grooves for fastening the base struts are of identical design. It when the fastening grooves and the securing grooves on the one hand and the two connecting grooves on the other hand are designed identically is particularly advantageous. This makes it possible to design the pull-out rails and the guide rails to be identical, at least with regard to some of their features.

The guide rails and the pull-out rails are preferably made from identical profiles, in particular metal profiles. However, the profiles do not have to match in terms of their characteristics within the scope of the invention. Nevertheless, this is advantageous within the scope of the invention, in particular in order to reduce the number of parts and to enable a flexible and simple construction.

The guide rails and the pull-out rails are preferably structurally identical to the extent that the rollers of the center rail can be accommodated identically.

It is advantageous if the middle rail can be moved in the pull-out direction from a closed position up to a first pull-out position with respect to the guide rails. In this preferred embodiment, the pull-out rails can be moved relative to the guide and center rails up to a maximum pull-out position downstream of the first pull-out position in the pull-out direction. This ensures that the pull-out rails can be pulled out almost completely. Even in the maximum pull-out position, the pull-out can reliably be subjected to a high load.

The optional three-part combination of the rail pairs consisting of guide rail, center rail and pull-out rail enables optimal load distribution, even with the maximum pull-out position.

The fact that the middle rail extends together with the pull-out rail up to the first pull-out position results in particularly good absorption of the loads that rest on the pull-out. Of course, however, in an alternative embodiment it can also be provided that the pull-out rails initially extend alone up to the first pull-out position and only after they have been reached In the first pull-out position, extend the middle rails from the guide rails. Both variants or mixtures thereof or differently graded extract variants are basically possible within the scope of the invention.

It is advantageous if the pull-out can be locked in the closed position and the maximum pull-out position via a locking mechanism formed on the first and / or the second connecting and base strut. In this way, the pull-out is secured against unintentional moving out of the locked position or unintentional pushing in from the maximum pull-out position.

It has been found to be advantageous if the pull-out, in particular when it is used in a motor vehicle, is secured against unintentional or independent movement out of the closed position. Accordingly, it has also been found to be advantageous if the pull-out is secured against unintentional or independent pushing in from the maximum pull-out position. This makes it easier for the user to operate the device positioned on the pull-out or to remove the device or the load placed on the pull-out.

The design of a locking mechanism in such a way that the first and / or the second connecting and base struts are included for this purpose has proven to be particularly suitable. A particularly advantageous training in this regard is shown in greater detail below. In principle, however, other locking mechanisms against unintentional pulling out or pushing in are also known from the prior art, which can also be used within the scope of the present invention.

According to a further advantageous embodiment of the invention, the guide rails and the extension rails have a running surface or track extending in the extension direction over the entire length of the guide rails. Alternatively, the running surface or the running track can also only extend over a partial length of the guide rails or pull-out rails.

In this context, an embodiment is advantageous according to which the central rails have rollers or the like, through which the central rails are guided in the running surfaces or the tracks of the guide and pull-out rails, that is, can roll along the running surfaces or the tracks.

When pulling out the pull-out in the pull-out direction, the pull-out rails are preferably moved simultaneously with the center rails from a closed position to a first pull-out position with respect to the guide rails. The middle rails are preferably carried along by a first driver element arranged on the respective pull-out rails, the first driver element cooperating with a corresponding second driver element, which is formed on the respective middle rails, when being pulled out. The running rollers arranged on the center rails run along the running surfaces or running tracks formed on the guide rails.

When the first pull-out position is reached, a stop is preferably provided for at least one of the rollers arranged on each central rail or any stop member of the central rail to run onto or strike a stop element formed on the respective guide rail. In the pull-out direction, the center rails can therefore not be moved further than the first pull-out position.

The pull-out rails, on the other hand, can preferably be pulled out further in the pull-out direction when the first pull-out position is reached with respect to the center rails and the guide rails. Since the center rails are fixed in this position with respect to the guide rails, the interacting first and second driver elements are released when a tensile force is applied in the pull-out direction. A latching mechanism is preferably released between the first and second driver elements. Even when the pull-out rails are pushed in in the direction of the locking position - that is, in the direction opposite to the pull-out direction - the center rails can be moved by the interacting driver elements.

The first and the second driver element preferably form a non-positive and / or positive connection. For example, it can be provided that the first driver element penetrates or engages spring-loaded into a receptacle, for example into a recess of the second driver element, in such a way that the first driver element moves out of the second driver element again at a defined force, preferably against the force of the spring. It can also be provided that the spring force acts in a direction orthogonal to the pull-out force and the second driver element has a slope extending in the pull-out direction, along which the first driver element can be extended against the force of the spring and, if necessary, retracts when the pull-out again is inserted.

It is advantageous if the pull-out rails with their running surfaces as they are pulled out further slide or roll along the rollers arranged on the middle rails until a maximum pull-out position is reached. In this position, the pull-out rails run preferably with a stop element arranged on the pull-out rails on at least one roller or a stop member of the respective central rail. As a result, a second stop is formed in a simple manner in order to prevent the pull-out rails from moving further in the pull-out direction.

A movement of the pull-out rails beyond the maximum pull-out position is preferably avoided in particular by the fact that the center rails are fixed in the first pull-out position with respect to a movement in the pull-out direction with respect to the guide rails. As the pull-out rails run onto the rollers of the center rails in the maximum pull-out position, the pull-out rails are also indirectly fixed with respect to the guide rails, namely via the center rails.

It is advantageous if the groove for receiving the transport plate or the transport tray extends along the pull-out rail.

The plate or tray is thus reliably received in the grooves of the two pull-out rails. The transport plate or the transport trough with their edge regions or edges running in the direction of extension can be inserted into this groove. The contour of the edge areas of the plate or trough can be adapted to the contour of the groove. The transport plate or the transport tray can be made of any material, preferably wood or plastic, but also metal.

The grooves and the contour of the plate or tub are preferably designed such that the surfaces of the pull-out rails run plane-parallel with the surface of the plate or an edge region of the tub, so that a load to be transported can also rest on the surfaces of the pull-out rails.

It is advantageous if the securing groove for securing the load extends along the pull-out rail.

In the securing groove, for example, holding or tensioning elements can be arranged with which the load located on the transport plate or in the transport tub can be secured. Tensioning straps or lashing straps, for example, can be used as tensioning elements.

The securing groove is preferably formed on the top of the pull-out rails or embedded in the top of the pull-out rails. The securing groove is preferably an airline profile or an airline rail, whereby a standard solution for receiving standardized lashing elements, for example lashing straps, is made available.

It is also advantageous if the fastening groove extends along the guide rail for the fixed installation of the drawer.

The fastening groove of the guide rails can preferably be a groove that is identical to the securing groove of the pull-out rail. The pull-out rail is preferably positioned such that its securing groove is formed on the top of the pull-out, while the guide rail is positioned adjacent to the pull-out rail in such a way that its fastening groove, which is identical to the securing groove, is positioned on the underside of the guide rail or the pull-out. The guide rail and the pull-out rail are preferably positioned in such a way that the securing groove or the fastening groove are located one above the other in the vertical direction. The securing groove and the fastening groove preferably each run in the area of the side edges of the drawer on the top and bottom.

If the guide rails and the pull-out rails are constructed identically, the contour and arrangement of the fastening groove correspond to the securing groove.

According to a further embodiment of the invention, in the first pull-out position, the center rails each strike with one of the rollers against a stop element arranged on the guide rail.

As already mentioned above, according to a further embodiment of the invention, the pull-out rails in the maximum pull-out position with a stop element arranged on the respective pull-out rail abut against one of the rollers of the center rail. The stop element can be designed in the manner of a C-shaped half-shell. When striking, the stop element can accommodate the roller. It is preferably adapted to the rollers in terms of its size and contour.

As already mentioned, according to a further advantageous embodiment of the invention, a first driver element is arranged on each of the pull-out rails, by means of which the middle rail can be brought from the locking position in the direction of, preferably up to, the first pull-out position when the pull-out rail is moved in the pull-out direction . The first driver element corresponds to this with the second Driver element. The second driver element is formed on the central rail, preferably in the area of a front end of the central rail.

According to a further advantageous embodiment of the invention, the driver elements can be used to bring the middle rail when the pull-out rail moves counter to the pull-out direction in the direction of the locking position. For this purpose, the first driver element interacts with the corresponding second driver element, and the driver elements preferably lock with one another.

As an alternative or in addition to the fact that the driver elements move the middle rail in the direction of the locking position when the pull-out rail is pushed in again, an independent slide-in driver element can also be provided, which can optionally also be designed in the same way as the abovementioned stop elements that limit the extension of the middle rail or the pull-out rail. The slide-in driver element can preferably be designed in a C-shape and adapted to the contour of a roller of the center rail. When the pull-out rail is pushed in, the slide-in driver element strikes against a correspondingly arranged roller or any stop member of the driver rail and thereby takes the driver rail with it.

It can be provided that the pull-out rail has an insert driver element on one of its two running surfaces or raceways, preferably at the front end in each case, and the first driver element on the other running surface or raceway. The first driver element corresponds to the second driver element of the center rail, while the insert driver element interacts with a correspondingly positioned roller or a stop member of the center rail.

As a result, the center rail is reliably both pulled out and pushed in.

According to the invention it can be provided that the locking mechanism can be unlocked by an upward movement of the handle.

This has the advantage that the handle does not move accidentally, for example because an object falls onto the handle, in such a way that the lock is released. Releasing the lock by moving the lever upwards has proven to be particularly suitable, in particular for using the pull-out on a motor vehicle.

According to an advantageous embodiment of the invention, the locking mechanism is formed from a longitudinal rod mounted on the second connecting strut via a transverse rod and extending along the pull-out rails, a handle connected to the transverse rod and a handle formed on the first connecting strut and connected to the longitudinal rod via a connecting element Latch that engages behind a transverse edge of the first or second base strut in the locked position and / or the maximum pull-out position.

Via the handle, in particular via a vertical movement of the handle in a direction facing away from the guide rails, that is, in an upward direction, the longitudinal rod can be moved in the extension direction - mediated by the transverse linkage. The bolt is pretensioned vertically, i.e. in the direction of the first or second base strut, preferably by the force of at least one spring, in particular a compression and / or tension spring. As a result of the longitudinal movement of the longitudinal rod after the handle has been actuated, the bolt is preferably moved by an articulated connecting element against the force of the spring, preferably vertically upwards. As a result, the position of the bolt engaging behind the transverse edge is released, whereupon the pull-out rails together with the middle rails can be moved in or against the pull-out direction.

The structure of the locking mechanism described above and described below is not restricted to the fact that the handle is moved vertically or upwards for opening. Another movement of the handle is also possible to release the locking mechanism.

In the context of the invention it can be provided that the described locking mechanism is designed only to release the lock in the closed position or to release the lock in the maximum extended position, as described above. Preferably, however, the locking mechanism is provided accordingly both for releasing the bolt in the closed position and for releasing the bolt in the pulled-out position.

It is fundamentally known from the prior art how a longitudinal movement, in the present case the longitudinal movement of the longitudinal rod, can be converted into a movement preferably running orthogonally thereto, in the present case in order to raise the bolt. For this purpose, an articulated connecting element is preferably provided, which is set in rotation by the longitudinal movement of the longitudinal rod, with a projection or a lever of the connecting element being a part of the bolt engages below such that a rotary movement of the connecting element leads to a lifting of the bolt due to the lever which engages below the bolt.

In the context of the invention it is preferably provided that the bolt engages behind a transverse edge of the first or the second base strut in the closed position and / or the maximum pull-out position. Here, however, a different configuration is also possible, for example elements that are independent of the base strut can also be provided, which enable the latch to engage or engage behind in the respective position. Furthermore, at the end of the respective direction of movement, that is, in the direction of the locking position or in the direction of the maximum pull-out position, it can also be provided that the latch engages behind a transverse edge of the first or second base strut.

According to a further advantageous embodiment of the invention, the handle is connected to the transverse linkage via connecting links, the connecting links protruding through a front fitting attached to the front ends of the pull-out rails in the area of the second connecting strut. The connecting links transmit the actuation of the handle to the crossbar.

According to a further advantageous embodiment of the invention, the first base strut has a run-on slope over which the bolt slides when the pull-out rails are moved counter to the pull-out direction or in the pull-out direction. In particular, the bolt slides along the run-up slope after it has been released by operating the handle against the force of the spring and the pull-out rails are moved in the pull-out direction or in the opposite direction, i.e. in the direction of the locking position.

According to an advantageous embodiment of the invention, the run-up slopes end with the transverse edge of the first or second base strut. As a result, the bolt engages in the locking position under the force of the spring immediately after the opening movement. Immediately after the opening movement, the bolt then engages behind the transverse edge of the respective base strut or engages behind it.

In addition, it should be pointed out that terms such as “comprehensive”, “have” or “with” do not exclude any other features or steps. Furthermore, the terms “a” or “the” which refer to a single number of steps or features do not exclude a plurality of features or steps, and vice versa.

Further features and advantages of the invention emerge from the following description of an exemplary embodiment of the invention and from the dependent claims.

• Auszug, insbesondere Schwerlastauszug zum Einbau in ein Kraftfahrzeug, mit zwei parallel und beabstandet zueinander angeordneten, sich entlang einer Auszugsrichtung erstreckenden, ortsfesten Führungsschienen, jeweils einer zu den beiden Führungsschienen in einem vertikalen Abstand parallel angeordneten Auszugsschiene, die gegenüber der jeweiligen Führungsschiene in Auszugsrichtung beweglich ist, einer zwischen der jeweiligen Führungs- und Auszugsschiene angeordneten Mittelschiene, die über Laufrollen in der Führungs- und Auszugsschiene geführt und in Auszugsrichtung gegenüber der Führungs- und Auszugsschiene beweglich ist, mit einer sich quer zur Auszugsrichtung erstreckenden, die Auszugsschienen miteinander verbindenden ersten und zweiten Verbindungsstrebe und einer die Führungsschienen miteinander verbindenden ersten und zweiten fahrzeugfesten Basisstrebe, wobei die erste Verbindungs- bzw. Basisstrebe an einem ersten Ende und die zweite Verbindungs- bzw. Basisstrebe an einem zweiten Ende der Führungs- bzw. Auszugsschiene angeordnet ist, wobei die Mittelschienen gegenüber den Führungsschienen in Auszugsrichtung aus einer Verschlussposition bis zu einer ersten Auszugsposition bewegbar sind und die Auszugsschienen gegenüber den Führungs- und Mittelschienen bis zu einer der ersten Auszugsposition in Auszugsrichtung nachgeordneten maximalen Auszugsposition bewegbar sind, wobei der Auszug in der Verschlussposition und/oder der maximalen Auszugsposition über einen an der ersten und/oder der zweiten Verbindungs- und Basisstrebe ausgebildeten Verriegelungsmechanismus arretierbar ist.

The present patent application contains a second invention which is characterized by the features of claims 1, 6, 7, 8 and 19, with this second invention not necessarily having to provide that the guide rails and the pull-out rails have a groove system. The second invention is thus as follows:

• Pull-out, in particular heavy-duty pull-out for installation in a motor vehicle, with two fixed guide rails that are parallel and spaced apart from one another and extend along a pull-out direction, each with one pull-out rail that is arranged parallel to the two guide rails at a vertical distance and that is movable in the pull-out direction with respect to the respective guide rail , a middle rail arranged between the respective guide and pull-out rail, which is guided over rollers in the guide and pull-out rail and is movable in the pull-out direction with respect to the guide and pull-out rail, with a first and second connecting strut which extends transversely to the pull-out direction and connects the pull-out rails to one another and a first and second vehicle-fixed base strut connecting the guide rails to one another, the first connecting or base strut at a first end and the second connecting or base strut at a second end The end of the guide or pull-out rail is arranged, the middle rails being movable in relation to the guide rails in the pull-out direction from a closed position to a first pull-out position and the pull-out rails being movable in relation to the guide and middle rails up to a maximum pull-out position downstream of the first pull-out position in the pull-out direction , wherein the extension can be locked in the closed position and / or the maximum extension position via a locking mechanism formed on the first and / or the second connecting and base strut.

The advantages of this invention result analogously from the above and the following statements. The second invention can be combined as desired with all the features that have already been described with respect to the first invention. A groove system and / or a structurally identical design of the guide rails and the pull-out rails is also useful in this case, but the inventors have recognized that an advantageous pull-out can also be achieved by the groove system is dispensed with, since the features of the subject matter of the second invention also lead to a very advantageous extension, which in particular enables a reliable locking, which is easily detachable and which is suitable for absorbing heavy loads.

The invention is described in more detail below with reference to the accompanying figures. The figures show several features of the invention in combination with one another. Of course, the person skilled in the art can, however, also consider these separately from one another and, if necessary, combine them to form further meaningful sub-combinations without having to be inventive for this.

• 1 eine perspektivische Darstellung des erfindungsgemäßen Auszugs in seiner Verschlussposition;
• 2 eine perspektivische Darstellung eines Ausschnitts eines Metallprofils, welches im Rahmen der Erfindung als Führungsschiene und/oder Auszugsschiene eingesetzt werden kann;
• 3 eine perspektivische Darstellung von vorne auf eine Führungsschiene, eine Auszugsschiene und eine Mittelschiene in der Verschlussposition des Auszugs;
• 4 eine perspektivische Darstellung der Führungsschiene, der Auszugsschiene und der Mittelschiene in einer ersten Auszugsposition;
• 5 eine perspektivische Darstellung auf eine erste von der Mittelschiene abgewandten Seite der Führungsschiene und der Auszugsschiene in einer maximalen Auszugsposition sowie eine Darstellung der Mittelschiene;
• 6 eine weitere perspektivische Darstellung auf eine zweite der Mittelschiene zugewandten Seite der Führungsschiene und der Auszugsschiene, sowie eine Darstellung der Mittelschiene in einer ersten Auszugsposition gemäß der Auszugsposition nach 4;
• 7 eine perspektivische Darstellung eines Längsschnitts durch die Auszugsschiene und die Führungsschiene zur Darstellung der in 5 verdeckten Laufrollen, Anschlags- und Mitnehmerelemente gemäß der Auszugsposition nach 5;
• 8 eine weitere perspektivische Darstellung des Auszugs mit einem Längsschnitt im Bereich und entlang der Längsstange;
• 9 eine perspektivische Darstellung mit Blick auf die Längsstange und das Quergestänge als Teil des Verriegelungsmechanismus des Auszugs;
• 10 eine perspektivische Darstellung des vorderen Bereichs des Auszugs, insbesondere mit Blick auf den Handgriff;
• 11 eine perspektivische Darstellung des Verriegelungsmechanismus am hinteren Ende des Auszugs im verriegelten Zustand;
• 12 eine weitere perspektivische Darstellung des Verriegelungsmechanismus am hinteren Ende des Auszugs in verriegelten Zustand;
• 13 eine perspektivische Darstellung des Verriegelungsmechanismus am hinteren Ende des Auszugs in gelösten Zustand;
• 14 eine perspektivische Darstellung des erfindungsgemäßen Auszugs mit Befestigungsmitteln zur Befestigung der Führungsschienen in einer ersten Ausführungsform;
• 15 eine Detaildarstellung auf die Befestigungsmittel nach 14;
• 16 eine weitere Detaildarstellung auf die Befestigungsmittel nach 14;
• 17 eine perspektivische Darstellung des erfindungsgemäßen Auszugs mit Befestigungsmitteln zur Befestigung der Führungsschienen in einer zweiten Ausführungsform;
• 18 eine Detaildarstellung auf die Befestigungsmittel nach 17;
• 19 eine weitere Detaildarstellung auf die Befestigungsmittel nach 17;
• 20 eine perspektivische Darstellung des erfindungsgemäßen Auszugs mit Befestigungsmitteln zur Befestigung der Führungsschienen in einer dritten Ausführungsform;
• 21 eine Detaildarstellung auf die Befestigungsmittel nach 20; und
• 22 eine exemplarische Darstellung des erfindungsgemäßen Auszugs mit Befestigungsmitteln gemäß der zweiten und dritten Ausführungsform.

Show it:

• 1 a perspective view of the pull-out according to the invention in its closed position;
• 2 a perspective view of a section of a metal profile which can be used as a guide rail and / or pull-out rail within the scope of the invention;
• 3 a perspective view from the front of a guide rail, a pull-out rail and a central rail in the closed position of the pull-out;
• 4th a perspective view of the guide rail, the pull-out rail and the center rail in a first pull-out position;
• 5 a perspective view of a first side of the guide rail facing away from the center rail and the pull-out rail in a maximum pull-out position and a view of the center rail;
• 6th a further perspective view of a second side of the guide rail and the pull-out rail facing the center rail, as well as a view of the center rail in a first pull-out position according to the pull-out position 4th ;
• 7th a perspective illustration of a longitudinal section through the pull-out rail and the guide rail to illustrate the in 5 hidden rollers, stop and driver elements according to the pull-out position 5 ;
• 8th a further perspective view of the extension with a longitudinal section in the area and along the longitudinal rod;
• 9 a perspective view with a view of the longitudinal rod and the transverse rod as part of the locking mechanism of the pull-out;
• 10 a perspective view of the front area of the pull-out, in particular with a view of the handle;
• 11 a perspective view of the locking mechanism at the rear end of the drawer in the locked state;
• 12th a further perspective view of the locking mechanism at the rear end of the pull-out in the locked state;
• 13th a perspective view of the locking mechanism at the rear end of the pull-out in the released state;
• 14th a perspective view of the pull-out according to the invention with fastening means for fastening the guide rails in a first embodiment;
• 15th a detailed representation of the fastening means according to 14th ;
• 16 a further detailed representation of the fastening means according to 14th ;
• 17th a perspective view of the pull-out according to the invention with fastening means for fastening the guide rails in a second embodiment;
• 18th a detailed representation of the fastening means according to 17th ;
• 19th a further detailed representation of the fastening means according to 17th ;
• 20th a perspective view of the pull-out according to the invention with fastening means for fastening the guide rails in a third embodiment;
• 21 a detailed representation of the fastening means according to 20th ; and
• 22nd an exemplary representation of the pull-out according to the invention with fastening means according to the second and third embodiment.

the 1 shows the pull-out according to the invention in its closed position in a perspective view. The pull-out is particularly suitable for installation in a motor vehicle. In the closed position, as well as in its maximum pull-out position, the pull-out is via a locking mechanism against longitudinal movements in or against the pull-out direction A. locked. However, the invention is not restricted to this. As will be explained in more detail later, the locking mechanism can be activated by operating a handle 1 be solved, in particular by pulling the handle 1 is moved or pulled vertically upwards (see 10 ). Only then is it possible to pull the drawer out of its closed position, This applies analogously to the process of pushing back the pull-out from its maximum pull-out position into the closed position.

As the 3 until 7th indicate that the pull-out comprises two parallel and spaced apart from one another, extending along a pull-out direction A. extending guide rails fixed to the vehicle 2 as well as opposite the guide rails 2 in the pull-out direction A. longitudinally movable pull-out rails 3 .

With the guide rails 2 and the pull-out rails 3 it is preferably a profile 4th , preferably around metal profiles 4th , however, plastic profiles are also possible. the 2 shows an enlarged section of such a metal profile 4th . With the profiles 4th it is preferably an aluminum extrusion.

In the exemplary embodiment, the guide rails are 2 and the pull-out rails 3 constructed identically. However, the exemplary embodiment is not restricted to this.

The guide rails shown in the exemplary embodiment 2 and the pull-out rails 3 have the groove system according to the invention. The groove system according to the invention can have one or more of the grooves defined in claim 1. In the exemplary embodiment, a groove system is shown which has a plurality of grooves, which are shown in more detail below. However, the invention is not restricted to this. The invention can also be implemented with a groove system which has only one groove or two or three or more grooves (in any combination). The exemplary embodiment is to be understood accordingly.

The guide rails 2 can be accessed via - below using the 14th until 22nd Suitable fastening means, which are shown in more detail, can be fixedly connected to the motor vehicle or a frame fixed to the vehicle, for example by screwing. The guide rails 2 Openings (not shown) or, alternatively or in addition, a fastening groove 5 (as part of the groove system) or, alternatively or in addition, connecting grooves 31 , 32 (as part of the groove system), which are provided for connection with suitable fastening screws or fastening bolts, which can then be connected to a fastening partner (e.g. with the vehicle floor or with a metal frame). Can also be in the fastening groove 5 a fastening strip fixed to the vehicle (not shown) can be used. As it is with the guide rails 2 and the pull-out rails 3 in the exemplary embodiment preferably to structurally identical metal profiles 4th that groove can be used when using a profile 4th as guide rails 2 the function of a fastening groove 5 when using the profile 4th as a pull-out rail 3 to be assigned another task. The said groove then preferably functions as a securing groove 6th (as part of the groove system), especially for securing loads.

the 14th until 22nd show different fastening variants around the guide rails for excerpts according to the invention that are otherwise identically constructed 2 to be firmly connected to a motor vehicle or a frame fixed to the vehicle (each not shown). However, the fastening variants shown are also suitable for fixing the guide rails 2 on any other fastening partners or stationary elements. The invention is not restricted to installation in a motor vehicle.

the 14th , 15th and 16 show a first embodiment of the fastening means. It is provided that the first fastening means 33 with the fastening groove 5 the guide rail 2 connected, preferably screwed. In the exemplary embodiment, it is provided for this purpose that in the fastening groove 5 one slot nut each 34 is used, the with a mounting plate, such as a retaining plate 35 , is screwed. The retaining plate 35 can be designed in such a way that this, preferably by means of a screw element 36 or the like is screwed stationary to a frame fixed to the vehicle, a motor vehicle or otherwise. It is essential with the first fastening variant that the fastening means 33 in the fastening groove 5 are fixed or screwed on. It is provided that in the fastening groove 5 a guide rail 2 at least one, preferably two, three or more fastening means 33 are set. In the embodiment according to 14th until 16 it is provided that the retaining plate 35 protrudes to the outside. Basically, the retaining plate 35 but also survive inwards. The retaining plate 35 can also be angled, depending on the installation situation.

the 17th , 18th and 19th show a second embodiment of the fastening means. It is provided that the guide rails 2 each via their outwardly directed connecting groove 31 with a fastening partner, e.g. B. a vehicle-fixed frame connected. For this purpose are in the embodiment according to 17th until 19th second fastening means 37 provided with the respective connecting groove 31 connected, preferably screwed. The second fastening means 37 preferably have lateral brackets for this purpose 38 on the outside of the connecting groove 31 be attached. In the connecting groove 31 can do this with a sliding block 39 be used with which the bracket 38 is screwed. The bracket 38 can also be inserted directly into the connecting groove 31 screwed in or otherwise fastened, for example by riveting.

The second attachment means 37 furthermore each has a screw element 40 or the like to the bracket 38 to be fixed on a frame fixed to the vehicle, a motor vehicle or otherwise stationary.

The one in the 17th until 19th shown bracket 38 can also be otherwise angularly shaped or possibly also run straight, as in FIG 14th until 16 shown. In the case of the second fastening variant, it is essential that the connecting groove 31 is used to set. In an alternative embodiment, it can also be provided that the second fastening means 37 on the inward connecting groove 32 the guide rails 2 are set. The second fastening means 37 can be designed accordingly; in principle, identical mounting brackets can be used for this 38 be used. In principle, mixed forms are also possible, ie it can be provided that the second fastening means 37 both in the connecting groove 31 as well as in the connecting groove 32 are set.

Preferably is in the connecting groove 31 and / or in the connecting groove 32 at least one fastening means 37 , preferably two, three or more fasteners 37 , set.

the 20th , 21 and 22nd show a third embodiment of the fastening means. It is provided here that first and second base struts, which are shown in greater detail below 18th , 19th serve as fasteners to the guide rails 2 with a fastening partner, e.g. B. to connect the motor vehicle or a frame fixed to the vehicle. The first and second base struts 18th , 19th are preferably on the inwardly directed connecting groove 32 set. In principle, the first and the second base struts 18th , 19th but also in a different way on the guide rails 2 be fixed. Establishing the first and second base struts 18th , 19th on the inwardly directed connecting grooves 32 the guide rails 2 however, it is particularly suitable.

To fix the first and the second base strut 18th , 19th is preferably provided that in the respective connecting groove 32 a nut 41 is used and the first and second base struts 18th , 19th preferably a bend 42 have, which have fastening screws 43 with the nut 41 or alternatively directly with the connecting groove 32 can be screwed. Furthermore, the first and second base struts 18th , 19th Screw elements 44 and / or bores that serve the first and the second base strut 18th , 19th and thus also the guide rail 2 to be fixed on a motor vehicle, a frame fixed to the vehicle or otherwise stationary.

In principle, more than two base struts, for example three base struts, as in FIG 20th shown, be provided, not all of the base struts have to be designed as fastening means. In 20th are holes in the third, not designated, central base strut, which are located between the first and the second base strut 18th , 19th located, provided, but no screws. In principle, however, a screw connection is also possible at this point. In principle, however, it is also possible that, within the framework of the third fastening variant, only the first fastening strut 18th or just the second fastening strut 19th is designed as a fastening means, optionally in combination with further fastening means of the first or second type.

the 22nd shows different from the 20th and 21 , in addition also the second fastening means 37 , which is in the connecting groove 31 is fixed.

In principle, it is possible to combine all three fastening variants with one another as required.

As in 2 can be seen, has the metal profile 4th , especially when used as a pull-out rail 3 , one down along the profile 4th extending groove 7th for attaching a load-receiving transport plate 8th on ( 1 ). The groove 7th is part of the groove system according to the invention. In the groove 7th can be a transport plate 8th can be used with their edge areas or edges running in the direction of extension. The contour of the edge areas is similar to the contour of the groove 7th customized. The surface of the transport plate preferably runs 8th plane-parallel with the surface of the pull-out rail 3 .

The extension is with one to each of the two guide rails 2 Pull-out rails arranged in parallel at a vertical distance 3 provided opposite the respective guide rail 2 in the direction of extension A. is movable (see 3 until 7th ). Between the respective guide rails 2 and the pull-out rail 3 is in the exemplary embodiment (optional) a middle rail 9 arranged over castors 10 in the guide rail 2 and pull-out rail 3 guided and in the pull-out direction A. opposite the guide rail 2 and pull-out rail 3 is movable. In the longitudinal direction of the central rail 9 , i.e. along the extension direction A. , be able several rollers 10 on the middle rail 9 be attached or stored, for example via bearing shafts or roller bearings. The middle rails 9 are on both sides, ie on opposite sides, with rollers 10 Mistake.

In the exemplary embodiment it is provided that the center rail 9 on both sides there are two vertically offset rows of rollers 10 having. The guide rails 2 and the pull-out rails 3 take on two rows of rollers, with the pull-out rail 3 the top two rows of rollers 10 picks up and the guide rail 2 the two lower rows of rollers 10 .

As in the 3 until 5 are reproduced, the pull-out rails 3 when pulling out the pull-out in the pull-out direction A. simultaneously with the center rails 9 from a locking position ( 3 ) up to a first pull-out position ( 4th ) opposite the guide rails 2 emotional.

Preferably the center rails 9 by one on the respective pull-out rails 3 arranged first driver element 11 (shown in 3 , 4th , 5 and 6th ) taken along, the first driver element 11 when pulling out with a corresponding second driver element 12th (shown in 3 , 4th and 7th ), which is on the respective center rails 9 is formed, cooperates. When they are pulled out, they run on the middle rails 9 arranged rollers 10 along one of the guide rails 2 trained tread 13th .

When reaching the first pull-out position ( 4th , 6th ) at least one of the runs on each center rail 9 arranged rollers 10 on one on the respective guide rail 2 trained stop element 14th on or strikes at this, see in particular 6th . In the direction of extension A. the middle rails 9 Do not move further than the first pull-out position.

The pull-out rails 3 on the other hand, when the first pull-out position is reached, opposite the center rails 9 and the guide rails 2 in the direction of extension A. move on ( 5 , 7th ). As the middle rails 9 in this position opposite the guide rails 2 are set, solve the cooperating first and second driver elements 11 , 12th with the application of a tensile force in the pull-out direction A. . Even when inserting the pull-out rails 3 in the direction of the locking position, it is basically possible for the center rails to move 9 by the interacting driver elements 11 , 12th let move. In the exemplary embodiment, however, it is provided that when the pull-out rail is pushed in 3 a slide-in driver element 29 , which is attached to a front end of the pull-out rail takes on the task of pushing in the middle rail as soon as the pull-out rail is pushed in so far that it has reached the first pull-out position. As from the 3 until 6th can be seen in principle, the slide-in driver element strikes 29 on a roller 10 the middle rail 9 and thus pushes the middle rail 9 with a. The slide-in driver element 29 is designed in such a way that this conforms to the shape of the roller 10 adapted and preferably has a curved shape that fits the roller 10 is adapted. In the exemplary embodiment, the slide-in driver element is 29 at the front end of one of the two running surfaces 13th the pull-out rail 3 assembled. It is preferably at the front end of the other running surface 13th the pull-out rail 3 the first driver element 11 mounted, which with the second driver element 12th the middle rail 9 cooperates. This is also shown in a synopsis in the 3 . the 3 it can be seen that one of the treads is at the front end 13th the pull-out rail 3 the slide-in driver element 29 is attached while treading on the other 13th the pull-out rail 3 , also at the front end, the first driver element 11 , which in the illustration according to 3 in the second driver element 12th engages, is positioned.

Is shown in the 3 also that at the front end of the guide rail 2 , below the slide-in driver element 29 in the tread 13th the guide rail 2 the stop element 14th is positioned, which, in interaction with a roller 10 (please refer 6th ) prevents the center rail 9 can be pulled out further than the first pull-out position.

When you pull out further, ie beyond the first pull-out position, the pull-out rails slide or "roll" 3 with their treads 13th along the on the center rails 9 arranged rollers 10 until a maximum pull-out position is reached (see 7th ). The pull-out rails run in this position 3 with one on the pull-out rails 3 arranged stop element 15th on at least one roller 10 the respective middle rail 9 on. With that the pull-out rails are 3 another movement in the pull-out direction A. prevented. To make this clear is the 7th shown with a longitudinal section, so that the in 5 due to the side cover of the pull-out rail 3 not recognizable stop element 15th can be seen. Furthermore, in the 7th due to the lack of a side cover, so do the rollers 10 can be seen in the tread 13th or the track of the pull-out rail 3 get lost. Furthermore, in the 7th also the second driver element due to the longitudinal section 12th which is on the center rail 9 is attached, can be seen. Furthermore shows 7th , compared to the 5 , also the castors 10 the middle rail 9 otherwise from the side surface of the guide rail 2 are covered.

The extension also encompasses itself transversely to the extension direction A. extending, the pull-out rails 3 interconnecting first and second connecting struts 16 , 17th (see e.g. 8th , 9 , 11 , 12th , 14th , 21 and 22nd ). By connecting the pull-out rails 3 via the connecting struts 16 , 17th is a simultaneous pull-out of the parallel pull-out rails 3 guaranteed. In addition, the connecting struts stabilize 16 , 17th the overall structure of the excerpt.

The first and second connecting struts 16 , 17th or optionally also further connecting struts, which are preferably located between the first and second connecting struts 16 , 17th can be located (in 14th shown without reference numerals), are preferably in a connecting groove 45 the pull-out rail 3 set. The connecting groove 45 is part of the groove system according to the invention. The connecting groove 45 the pull-out rail 3 corresponds to the identical structure of the guide rail, which is preferably provided in the exemplary embodiment 2 and the pull-out rail 3 , the connecting groove 31 the guide rail 2 . The first and second connecting struts 16 , 17th are thereby preferably in the corresponding connecting groove 45 the pull-out rails 3 specified that the connecting groove 45 is provided with a sliding block, not shown, and the connecting struts 16 , 17th have a design that enables a screw connection in the sliding block. Basically, the connecting struts 16 , 17th but also directly into the connecting groove 45 be screwed in so that the connecting struts 16 , 17th between the connecting grooves 45 of the two pull-out rails 3 are set.

Basically, the connecting struts 16 , 17th also in a different way between the pull-out rails 3 be fixed.

The extension also includes the guide rails 2 interconnecting first and second vehicle-fixed base struts 18th , 19th . The first and second base struts fixed to the vehicle 18th , 19th can basically be constructed in the way that has already been shown above. In particular, a screw connection with the connecting grooves 32 the guide rail 2 be provided.

The basic struts 18th , 19th can between the connecting grooves 32 of the two pull-out rails 3 be fixed.

In principle, more or fewer connecting struts can also be used 16 , 17th or basic struts 18th , 19th be provided.

In the closed position and the maximum extension position, the extension is via one of the first and second connecting struts 16 , 17th and the first and second base struts 18th , 19th trained locking mechanism lockable. The pull-out is thus secured against unintentional pulling out or sliding back out of the locked position or the maximum pull-out position.

As in particular in the 8th , 9 and 11 shown, the locking mechanism is composed of one on the second connecting strut 17th via a crossbar 20th longitudinally moveable, along the pull-out rails 3 extending longitudinal rod 21 , one with the crossbar 20th connected handle 1 and one on the first connecting strut 17th trained, with the longitudinal rod 21 via a connecting element 22nd connected bolt 23 . The bolt engages in the locked position 23 behind a transverse edge 24 the first or second base strut 18th , 19th , shown in the 11 and 12th , on.

About the handle 1 , in particular via a vertical movement of the handle 1 in one to the guide rails 2 facing away, i.e. in an upward direction (cf. 10 ), the longitudinal rod 21 in the direction of extension A. move. The connecting element 22nd is thereby rotated about the pivot point 22a, whereby a lever 22b is connected to the bolt 23 connected control panel 30th raises. The latch 23 is vertically downwards, ie in the direction of the first or second base strut 18th , 19th by the force of a spring 25th , for example a compression or tension spring, preloaded. By the longitudinal movement of the longitudinal rod 21 after operating the handle 1 becomes the latch 23 against the force of the spring 25th moved vertically up ( 13th ). This gets the behind the transverse edge 24 locked position of the bolt 23 solved, whereupon the pull-out rails 3 including middle rails 9 in or against the pull-out direction A. are movable.

As in 9 and 10 the handle is indicated 1 via connecting links 26th with the crossbar 20th connected, the connecting links 26th by one in the area of the second connecting strut 17th at the front ends of the pull-out rails 3 attached front fitting 27 protrude through. The connecting links 26th direct the operation of the handle 1 to the crossbar 20th further.

As in particular from the 8th and 11 shows the first base strut 18th a ramp 28 on over which the latch 23 at the Moving the pull-out rails 3 against the direction of extension A. or in the direction of extension A. slides. In particular, the bolt slides 23 along the ramp 28 after this by operating the handle 1 against the force of the spring 25th has been released and the pull-out rails 3 in the direction of extension A. or moved against the pull-out direction.

A correspondingly designed approach slope 28 is also on the second base strut 19th provided in the same way, so that the latch is also in this position 23 when moving the pull-out rails 3 in or against the pull-out direction A. on the ramp 28 slides.

The ramp slopes 28 close with the transverse edge 24 the first base strut 18th or second base strut 19th away. This engages the bolt 23 immediately after the opening movement under the force of the spring 25th into the locking position.

List of reference symbols

1

Handle

2

Guide rail

3

Pull-out rail

4th

Metal profile

5

Fastening groove

6th

Locking groove

7th

Groove

8th

Transport flap

9

Middle rail

10

Caster

11

First driver element

12th

Second driver element

13th

Tread

14th

Stop element

15th

Stop element

16

First connecting strut

17th

Second connecting strut

18th

First base strut

19th

Second base strut

20th

Crossbars

21

Longitudinal bar

22nd

Connecting element

23

bars

24

Transverse edge

25th

feather

26th

Connecting link

27

Front fitting

28

Approach slope

29

Slide-in driver element

30th

Control panel

31

Connecting groove (directed outwards)

32

Connecting groove (directed inwards)

33

first fasteners

34

Sliding block

35

Retaining plate

36

Screw element

37

second fastening means

38

Bracket

39

Sliding block

40

Screw element

41

Sliding block

42

Angulation

43

Fastening screw

44

Screw element

45

Connection groove of the pull-out rail

A.

Extension direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 9407734 U1 [0004]
• DE 10005042 C1 [0005]

Claims (19)

Pull-out, in particular heavy-duty pull-out for installation in a motor vehicle, with two stationary guide rails (2) arranged parallel and spaced apart from one another and extending along a pull-out direction (A), each with one extension rail (2) arranged parallel to the two guide rails (2) at a vertical distance from one another ( 3), which is movable in the pull-out direction (A) with respect to the respective guide rail (2), with a first and second connecting strut (16, 17) extending transversely to the pull-out direction (A) and connecting the pull-out rails (3) and one of the guide rails (2) connecting first and second base struts (18, 19), characterized in that the guide rails (2) and / or the pull-out rails (3) have a system of grooves, which - grooves (7) for receiving a transport plate (8) or a transport tray and - connecting grooves (45) for fastening the connecting struts (16, 17) and - securing grooves (6) for securing the load includes. Extract after Claim 1 , characterized in that the pull-out rails (3) have the grooves (7) and / or the securing grooves (6) and / or the connecting grooves (45) for fastening the connecting struts (16, 17). Extract after Claim 1 or 2 , characterized in that the groove system - connecting grooves (32) for fastening the base struts (18, 19) and / or for fixedly fixing the guide rails (2) and / or - connecting grooves (31) for fixedly fixing the guide rails (2) and / or - comprises fastening grooves (5) for the fixed fixing of the guide rails (2). Extract after Claim 3 , characterized in that the guide rails (2) the connecting grooves (31) for the fixed fixing of the guide rails (2) and / or the connecting grooves (32) for fixing the base struts (18, 19) and / or for the fixed fixing of the guide rails (2 ) and / or have the fastening grooves (5). Extract after Claim 3 or 4th , characterized in that the guide rails (2) and the pull-out rails (3) are made from structurally identical profiles (4). Excerpt from one of the Claims 1 until 5 , characterized in that a middle rail (9) is arranged between the respective guide and pull-out rail (2, 3), which is guided over rollers (10) in the guide and pull-out rail (2, 3) and opposite in the pull-out direction (A) the guide and pull-out rail (2, 3) is movable. Extract after Claim 6 , characterized in that the middle rails (9) can be moved relative to the guide rails (2) in the pull-out direction (A) from a closed position to a first pull-out position and the pull-out rails (3) can be moved relative to the guide and middle rails (2, 9) up to one of the first pull-out position in the pull-out direction (A) downstream maximum pull-out position can be moved Extract after Claim 7 , characterized in that the extension can be locked in the closed position and / or the maximum extension position via a locking mechanism formed on the first and / or the second connection and base strut (16, 17, 18, 19). Excerpt from one of the Claims 1 until 8th , characterized in that the guide rails (2) and the extension rails (3) have a running surface (13) extending in the extension direction (A) over the entire length of the guide rails (2). Excerpt from one of the Claims 1 until 9 , characterized in that the groove (7) for receiving the transport plate (8) or the transport tray extends along the pull-out rail (3). Excerpt from one of the Claims 1 until 10 , characterized in that the securing groove (6) for securing the load extends along the pull-out rail (3). Excerpt from one of the Claims 3 until 11 , characterized in that the fastening groove (5) for the fixed installation of the pull-out extends along the guide rail (2). Excerpt from one of the Claims 7 until 12th , characterized in that the middle rails (9) in the first pull-out position each strike with one of the rollers (10) on a stop element (14) arranged on the guide rail (2). Excerpt from one of the Claims 7 until 13th , characterized in that the pull-out rails (3) in the maximum pull-out position abut against one of the rollers (10) or a stop member of the center rail (9) with a stop element (15) arranged on the respective pull-out rail (3). Excerpt from one of the Claims 7 until 14th , characterized in that a first driver element on each of the pull-out rails (3) (11) is arranged, by means of which the central rail (9) can be brought from the closed position in the direction of the first extended position when the pull-out rail (3) is moved in the pull-out direction (A). Excerpt from one of the Claims 8 until 15th , characterized in that the locking mechanism can be unlocked by an upward movement of a handle (1). Extract after Claim 16 , characterized in that the locking mechanism is formed from a longitudinal rod (21) which is mounted on the second connecting strut (17) via a transverse rod (20) and extends along the pull-out rails (3), the handle (1), which is connected to the transverse rod (20), and a bolt (23) formed on the first connecting strut (16) and connected to the longitudinal rod (21) via a connecting element (22), which is in the closed position and / or the maximum pull-out position at the end of the respective direction of movement engages behind a transverse edge (24) of the first or second base strut (18, 19) and / or engages behind a transverse edge (24) of the first or second base strut (18, 19). Extract after Claim 17 , characterized in that the first base strut (18) has a run-up bevel (28) over which the bolt (23) slides against the pull-out direction (A) when the pull-out rails (3) are moved and / or the second base strut (19) has a run-up bevel (28), over which the bolt (23) slides when the pull-out rails (3) are moved in the pull-out direction (A). Excerpt from one of the Claims 1 until 18th , characterized in that the first connecting or base strut (16, 18) at a first end and / or the second connecting or base strut (17, 19) at a second end of the guide or pull-out rail (2, 3 ) is arranged.

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