Slide-out assembly, vehicle having a slide-out assembly, and coupling module therefor

Abstract

The invention relates primarily to a slide-out assembly (10) for a vehicle (200) and to a coupling module (100) therefor. The slide-out assembly (10) comprises a drive system (20) by means of which a slide-out box (230) can be moved. The drive system (20) has at least one electric motor (22) which, in a usage state, is operatively connected to at least one drive gear (28) for moving the slide-out box (230). According to the invention, the drive system (20) has at least one switchable coupling device (40) in the form of a fluid-controlled coupling device (40). By the establishment of a decoupled state by said coupling device, the operative connection between the electric motor (22) and the drive gear (28) can be interrupted and established. The invention also relates to a coupling module (100) which combines a coupling device (40) and a braking device (32).

Description

[0001] Slide-out arrangement, vehicle with a slide-out arrangement and coupling module therefor

[0002] FIELD OF APPLICATION AND STATE OF THE ART

[0003] The invention relates to a slide-out arrangement for a vehicle and a coupling module, in particular for a drive system of such a slide-out arrangement.

[0004] Generic slide-out arrangements are used to move slide-out units of vehicles between a storage end position and an extended, usable end position. Slide-out units represent extensions for the interior of a vehicle such as a motorhome or caravan trailer, which are provided in a slide-out recess in a vehicle wall. The extended usable end position results in the interior of the vehicle being enlarged by approximately the size of the slide-out unit. This can be used, for example, when the vehicle is used stationary to increase the living space of a motorhome.

[0005] Slide-out assemblies are typically powered by one or more electric motors. If one of these electric motors or the power supply to the electric motors fails, this can make retracting the slide-out box very difficult. While it is already known that slide-out assemblies are also equipped with a hand crank, which generally allows manual retraction in such a case, it is usually difficult to decouple the electric motor in existing systems, which can complicate manual retraction.

[0006] TASK AND SOLUTION

[0007] The object of the invention is to provide a convenient way to retract a slide-out box even in the event of a malfunction and in particular after the failure of an electric motor.

[0008] To achieve this objective, the invention proposes a slide-out arrangement and a vehicle with such a slide-out arrangement. Furthermore, a coupling module is proposed, which can be used particularly expediently with such a slide-out arrangement.

[0009] A slide-out assembly according to the invention comprises a vehicle-mounted assembly for attachment to the vehicle chassis, as well as a displaceable assembly relative to the vehicle-mounted assembly for attachment to a slide-out box. The slide-out assembly further comprises a drive system by means of which the vehicle-mounted assembly and the displaceable assembly can be moved relative to one another. Part of this drive system is at least one electric motor, which, in a use state, is operatively connected to at least one drive wheel for moving the slide-out box.

[0010] Various drive system designs are possible. In one design included here, the drive wheel is designed as a drive gear and is part of the vehicle-side assembly. It meshes with a rack, which is part of the slide-out side assembly. The rack can, in particular, be provided on an outer side of the slide-out box.

[0011] Another and presently preferred design provides that the drive gear is intended to drive a drive chain and for this purpose is in engagement with such a chain. The drive chain is coupled to the slide-out box in such a way that the latter can be extended and retracted by means of the chain. In particular, the invention relates to drive systems in which at least one push chain is driven by the drive gear. This push chain is designed in such a way that it can exert not only tensile forces but also thrust forces on the slide-out box. In particular, it can be a push chain consisting of two separately supplied partial strands, the links of which are coupled together as the push chain extends in order to form a sufficiently stable assembly to transmit the required thrust forces.

[0012] Depending on the design of the drive system, several electric motors can be used, each driving one or more drive wheels.

[0013] According to the invention, the drive system comprises at least one switchable clutch device. This clutch device is fluid-controlled according to the invention. The clutch device proposed according to the invention can be switched by supplying or discharging liquid or gas from the clutch device. By means of the clutch device, a decoupled and a coupled state can be achieved, in which the operative connection between the electric motor and the drive gear is interrupted or established.

[0014] The coupling device according to the invention thus makes it possible to temporarily separate the drive gear from the motor, so that the motor does not impede the rotation of the drive gear. This may be necessary in various situations, for example, during maintenance of the drive system. In particular, however, such decoupling is required in the case already mentioned above, where the drive system can no longer be moved by means of the motor, for example, due to a defect or a failure of the electric motor's power supply. In such a case, it is extremely important for a slide-out system to be able to at least manually push the slide-out box back into the vehicle in order to move the vehicle.

[0015] The fact that the switchable clutch device proposed according to the invention is designed as a fluid-controlled clutch device is particularly expedient because it allows the coupling or uncoupling process to be initiated without coming into direct contact with the drive system and the clutch elements therein. Since the drive system is usually difficult to access from the outside, both when the slide-out box is retracted and when it is extended, such direct access is usually difficult. The design of the coupling device as a fluid-controlled coupling device offers the possibility of not having to perform the switching process directly at the clutch device.

[0016] Particularly preferably, a fluid connection is provided on the switchable coupling device. A fluid line is connected to this fluid connection, which leads to a separate fluid inlet spaced from the fluid connection of the coupling device. The fluid inlet can be provided in particular at an easily accessible location on the outside of the vehicle, for example underneath the slide-out box or next to the slide-out box, or in the vehicle interior. The length of the fluid line between the fluid inlet and the coupling device is preferably at least 20 cm, particularly preferably at least 40 cm. The fluid line is preferably formed by a plastic hose. The fluid inlet does not necessarily have to be provided at an easily accessible location. A design is also possible in which only a switching valve is easily accessible, via which a pressure accumulator is fluidically coupled to the coupling device.

[0017] Particularly preferably, the coupling device has a pressure chamber, by the pressurization or pressure relief of which a motor-side drive member and a gear-side output member can be disengaged. Particularly preferably, the separation occurs by pressurizing the pressure chamber. The pressurization leads to the displacement of a piston element, which separates the drive member and the output member. An electrically or manually operated pump can be used as the pressure feed device for supplying the coupling device with fluid. However, a design in which a pressure accumulator is provided instead of a pump, in particular in the form of a permanently pressurized pressure cartridge, is preferred. In particular, this can be a pressure accumulator in which gas is stored under pressure, in particular CO2.

[0018] The pressure accumulator can be a permanently integrated element of the slide-out arrangement and be permanently connected to the coupling device via the fluid line. In such a case, the pressure accumulator preferably has the switching valve mentioned above, by means of which the fluidic connection to the coupling device can be opened on a case-by-case basis to transfer the coupling device to the uncoupled state.

[0019] Preferably, however, the pressure accumulator or pressure cartridge is part of a separate pressure supply device that is not connected to the coupling device or the fluid line when not in use. Instead, such a separate pressure supply device is stored separately from the fluid line, for example, in a storage compartment of the vehicle. If the coupling device needs to be uncoupled, a pressure supply device is connected to an inlet connection of the fluid inlet, preferably permanently attached to the vehicle. This inlet connection can preferably be designed as a Dunlop valve, a Schrader valve, a Presta valve, or a Sclaverand valve, so that suitable pressure supply devices can be used, for example, CO2 pressure generators known from cycling.

[0020] A slide-out arrangement according to the invention preferably comprises not only a fluid-controlled coupling device, but also a switchable blocking device, by means of which the at least one drive gear can be blocked, thus preventing displacement of the slide-out box. If such a switchable blocking device is provided, the coupling device is preferably designed to directly or indirectly decouple the blocking device when pressure is applied to the pressure chamber.

[0021] A structurally advantageous design provides that the switchable clutch device has a housing within which the drive member and the output member are rotatably mounted. The drive member and the output member are each provided with at least one clutch member at their mutually facing ends. The clutch members transmit the torque when engaged. The clutch members can be provided for positive or frictional torque transmission. Particularly preferably, they are spur-toothed clutch members.

[0022] For the purpose of releasing the coupling device, the coupling member of the drive member or the driven member is preferably displaceable in the direction of its axis of rotation relative to the other coupling member.

[0023] The axially displaceable drive member or output member can, in particular, be axially rigidly coupled to a pressure piston, which is adjacent to a pressure chamber and can be deflected by fluid pressure against the force of a spring. Preferably, the drive member and the output member of the clutch device are rotatably mounted coaxially with one another, with the drive member of the clutch device preferably being arranged coaxially with an output shaft of the electric motor and preferably being designed to be axially movable relative to the output shaft.

[0024] The design of the clutch device with a housing on whose opposite sides the drive element and the output element are arranged coaxially to each other allows for installation of the clutch device in limited space. The electric motor can be connected directly to this clutch housing, particularly by means of screw connections.

[0025] As already mentioned at the beginning, the drive system of the slide-out arrangement preferably comprises a plurality of electric motors, in particular two electric motors, each of which is assigned to one side of the slide-out. In such a design with a plurality of electric motors, a plurality of switchable clutch devices are preferably also provided, in particular one clutch device per electric motor.

[0026] Since a common decoupling of the multiple electric motors is usually provided, the at least two switchable clutch devices are preferably designed to be switched jointly from the coupled state to the uncoupled state. In particular, the clutch devices can be connected to a common fluid supply system for this purpose, so that they can be uncoupled by a common pressure supply device.

[0027] Alternatively or in addition to the use of multiple motors, the drive system can comprise a plurality of drive chains or racks driven by a plurality of rotationally coupled drive gears, with a common electric motor being provided for driving the rotationally coupled drive gears. In particular, an upper and lower rack or an upper and lower push chain can be provided on each side of the slide-out arrangement, each driven by a common motor. Preferably, the at least two rotationally coupled drive gears are connected to one another via a rigid shaft. Preferably, a coupling device is provided by means of which the electric motor can be jointly decoupled from the plurality of drive gears.

[0028] In addition to the slide-out arrangement itself, the invention also relates to a vehicle with a slide-out arrangement. Such a vehicle has a slide-out arrangement of the type described above. The vehicle has a slide-out box that can be moved between a storage end position, in which an outer side of the slide-out box is essentially flush with the surrounding side wall, and a use end position, in which the slide-out box is extended outward to enlarge the vehicle interior.

[0029] The vehicle preferably has the aforementioned fluid inlet for pressurizing the at least one coupling device in the vehicle interior or on an exterior of the vehicle. In particular, an inlet connection piece can be provided here, which is designed for coupling to a separate pressure supply device.

[0030] In addition to the slide-out arrangement described above, the invention also relates to a coupling module, which is particularly suitable as part of the aforementioned slide-out system. Such a coupling module comprises a housing in which at least two functions are combined. The coupling module has a rotatably mounted drive member, which is typically driven by an electric motor. Furthermore, the coupling module has a rotatably mounted output member, which is intended for direct or indirect coupling, in particular, to the drive wheel of the slide-out arrangement described above.

[0031] The housing of the clutch module contains, on the one hand, a switchable clutch device by means of which the drive member and the output member can be brought into a rotationally coupled and a rotationally decoupled state. This is preferably a fluid-controlled switchable clutch device, as described above.

[0032] On the other hand, the clutch module has a switchable locking device, by means of which at least the output member can be braked and / or locked against rotation relative to the housing. The clutch module can, in particular, be integrated into a slide-out assembly of the type described above. In the manner described above, it allows the electric motor to be decoupled from the drive wheel in the event of a defect, thus facilitating manual relocation of the slide-out box.

[0033] In particular, the drive member and the output member can be rotatably mounted coaxially to one another in the housing, with the drive member being rigidly coupled to an output shaft of the electric motor and remaining rigidly connected thereto even in the event of axial displacement. This results in a compact design that fits into the limited space available in a slide-out system. The output member and the drive member are provided with interacting coupling members, preferably with positively engaging or frictionally engaging coupling members. The housing of the coupling module is preferably designed for direct attachment to a housing of the electric motor, in particular through screw holes provided on the front side.

[0034] As already described above with regard to the contact of the slide-out arrangement, a clutch module according to the invention is preferably also designed as a fluid-controlled clutch device and has a fluid connection for supplying pressurized fluid. A pressure chamber can be provided within the housing of the clutch module, the pressurization of which disengages or keeps engaged a clutch member on the drive member side and a clutch member on the output member side. Alternatively, however, other options for switching the clutch device are also conceivable, such as an electromagnetic switching device.

[0035] Preferably, the coupling module has a spring which is elastically tensioned when pressure is applied to the pressure chamber, thereby causing a displacement of the coupling member on the drive member side.

[0036] The blocking device of the coupling module serves the purpose of mechanically blocking the output member in its current position so that forces acting on the output member from the outside are introduced into the housing of the coupling module and do not have to be absorbed by the electric motor. The coupling module is preferably designed such that the blocked state of the output member and the decoupling between the drive member and output member can be established simultaneously. The blocking device is preferably designed as an electromagnetic blocking device. For this purpose, it has an electromagnet, by the energization of which the output member or a blocking element fixed relative to it can be pulled against a blocking surface of the blocking device that is fixed relative to the housing or can be spaced apart from a blocking surface that is fixed relative to the housing against the force of a spring.Particularly preferred is a design in which the spring acts in the direction of the blocked position, so that the energization of the at least one electromagnet is required in order to release the blockage.

[0037] Particularly preferred is a design in which a common coupling and blocking spring is provided, which on the one hand presses the coupling members of the drive member and the output member into the coupled position and on the other hand presses the output member towards the blocked position.

[0038] This means that both the pressure chamber is pressurized and the resulting displacement of the drive member-side coupling member and / or the output member-side coupling member against the force of the coupling and blocking spring as well as the displacement of the output member and / or the blocking element caused by the electromagnet of the blocking device.

[0039] The clutch and locking spring is preferably designed as a compression spring, in particular as a helical compression spring. The spring preferably presses against the drive-member-side coupling member and, via this, indirectly against the output-member-side coupling member, which is thereby pressed toward its blocking position.

[0040] In a coupling module according to the invention, it is particularly preferred that both the drive member and the output member are axially displaceable relative to the housing. The axial mobility of the drive member is preferably used to decouple the output member from the drive member. The axial mobility of the output member is preferably used to lock the output member.

[0041] The blocking device is preferably designed as a frictionally engaged blocking device. However, it is also possible to provide a positive locking mechanism by providing positively interlocking blocking structures on the housing side and on the drive member. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Further advantages and aspects of the invention emerge from the claims and from the following description of preferred embodiments of the invention, which are explained below with reference to the figures.

[0043] Fig. 1A and 1B show a vehicle with a slide-out arrangement and a slide-out box, wherein Fig. 1A shows the slide-out box in a storage end position and Fig. 1B shows the slide-out box in a use end position.

[0044] Fig. 2 shows the slide-out box and the slide-out arrangement in a side view.

[0045] Fig. 3 shows a partial area of ​​the slide-out arrangement in perspective.

[0046] Fig. 4A and 4B show a first variant of a coupling module for the slide-out arrangement.

[0047] Fig. 5 illustrates a fluid supply system for pressurizing the coupling modules of Fig. 4A and 4B.

[0048] Fig. 6A to 6C show a second variant of a coupling module for the slide-out arrangement.

[0049] DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] Figs. 1A and 1B show a vehicle 200, in this case a mobile home, whose vehicle interior 210 can be enlarged when the vehicle 200 is stationary by extending a slide-out box 230, as shown in Fig. 1B. This slide-out box 230 is slidably mounted in a slide-out recess of a side wall 220 of the vehicle 200.

[0051] For the purpose of retracting and extending the slide-out box 230, a drive system 20 is used, which is shown as part of the slide-out arrangement in Fig. 2.

[0052] The drive system 20 primarily comprises two drive chains 30, designed as push chains, on each side of the slide-out box 230. Each of these push chains 30 has two separate partial strands 30A, 30B, which can be retracted separately into a chain storage unit 31. If the partial strands 30A, 30B are extended in the manner described below, the chain links are coupled to one another and form a stable assembly suitable for transmitting thrust forces. The chain storage units 31 and the electric drive described below are provided on the inside of the side wall 220 of the vehicle 200 and thus form a chassis-side assembly 12 of the slide-out arrangement 10.

[0053] The push chain 30 is extended toward the vehicle interior. At the distal end of the push chain 30, it is attached to fittings 14 of the slide-out box 230. Due to this design, extending the push chain 30 causes the slide-out box 230 to retract.

[0054] Fig. 3 shows an enlarged view of one of the chain stores 31 and the push chain 30 consisting of the partial strands 30A, 30B. In order to be able to extend and retract the push chain 30, an electric motor 22 is provided, which can be rotationally coupled to a first gear 26 via a coupling module 100 or coupling and blocking module 100, which will be described below. This gear 26 engages with a drive gear 28, which in turn engages with a toothing on the push chain 30. If this drive gear 28 is driven by the electric motor 22, the push chain is extended or retracted back into the chain store 31.

[0055] The two push chains 30 on the same side of the slide-out box 230 have only one common electric motor 22. This is arranged, as shown in Fig. 3, in the area of ​​one of the chain stores 31 of a first of the two push chains 30. Via a transmission shaft 29, the drive gear 28 of this push chain 30 is torsionally rigidly connected to another drive gear 28, which engages with the chain links of the second push chain 30 in a similar manner to that shown in Fig. 3, allowing the second push chain 30 to extend parallel to the first push chain 30.

[0056] The aforementioned clutch module 100 of Fig. 3 serves the purpose of being able to decouple an output shaft 24 of the electric motor 22 from the drive gear 28, in particular to be able to manually displace the slide-out box 230 and, in particular, to bring it into its retracted position in the event of damage to the electric motor 22. For this purpose, a switchable clutch device 40 is arranged in the clutch module 100.

[0057] Figs. 4A and 4B show a first possible structure of this coupling module 100. Fig. 4A shows the engaged state and Fig. 4B shows the disengaged state.

[0058] The essential components of module 100 are explained with reference to Fig. 4A: Module 100 comprises a module housing 102, which is provided with screw holes on its side facing electric motor 22 for the direct attachment of electric motor 22. The attached electric motor 22 can be designed, in particular, as a geared motor with a reduction gear.

[0059] The output shaft 24 of the electric motor extends into the module housing 102 and is coupled there in a torsionally rigid but axially movable manner to a rotatably mounted drive member 44. A coupling member 44B is provided on the side of the drive member 44 facing away from the electric motor 22, in this case in the form of a clutch disc with a spur gearing (not shown in detail).

[0060] Opposite the drive member 44 is an output member 46, which is rotatably mounted coaxially to the drive member 44 in the module housing 102. The aforementioned gear 26 is permanently and rigidly connected to this output member 46. Like the drive member 44, the output member 46 also has a coupling member 46B, which is also provided with spur gearing.

[0061] By means of a spring 58, the drive member 44 is permanently subjected to force in the direction of the output member 46. Unless pressure is applied to the coupling device 40 in the manner explained below, the electric motor 22 is therefore rotationally coupled to the gears 26, 28.

[0062] To enable decoupling, the clutch module 100 has the aforementioned switchable clutch device 40. This has a pressure chamber 52 at the motor-side end of the module housing 102, which is delimited in the direction of the output member 46 by a housing-fixed partition 53. The partition 53 has a central opening through which the drive member 44 is guided. An outer side of the partition 53, pointing to the left in FIGS. 4A and 4B, forms a contact surface for the aforementioned spring 58.

[0063] In the direction of the electric motor 22, the pressure chamber 52 is delimited by a pressure piston 56 which is fixedly connected to the drive member 44 with respect to an axial direction.

[0064] Fluid is supplied to the pressure chamber 52 via a fluid connection 54. If pressurized fluid, preferably in gaseous form and particularly preferably in the form of CO2, is supplied to the pressure chamber 52 via this fluid connection 54, the pressure in the pressure chamber 52 increases and the drive member 44 is displaced against the force of the spring 58 in the direction of the arrow shown in Fig. 4B. This displacement results in the coupling members 44B, 46B of the drive member 44 and the output member 46 being separated from one another, thus preventing torque from being transmitted from the drive member 44 to the output member 46. The electric motor 22 is thus separated from the drive gear 28.

[0065] Fig. 5 shows a schematic view of the left and right sides of the slide-out arrangement 10. As already explained, an electric motor 22 is provided on each side, which drives two drive gears 28.

[0066] Each of the two electric motors 22 is assigned a clutch module 100 to enable the electric motor to be disconnected from the drive gears 28. The two clutch modules 100 are connected to a common fluid supply system 70 to supply gas under excess pressure to the described pressure chambers 52. The fluid supply system 70 has a fluid inlet 80, which can be provided in particular in a vehicle interior.

[0067] The fluid inlet 80 has an inlet connection 82, which can be designed in the manner of a Dunlop valve, a Schrader valve, or a Presta valve, as known from cycling. The fluid supply system 70 connects the fluid inlet 80 to the fluid connections 54 on the two clutch modules 100. If pressurized gas is supplied via the fluid inlet 80, both pressure chambers 52 are pressurized, thus separating the drive members 44 from the associated output members 46. In this pressurized state, the manual insertion of the slide-out box 230 is then possible.

[0068] Pressurization is preferably achieved via a pressure feed device 90, which can be stored separately in the vehicle when not in use, for example, in a storage compartment of the vehicle. This pressure feed device 90 is designed for coupling to the inlet nozzle 82 and has a preferably replaceable pressure cartridge 92, which can be filled, for example, with CO2 under overpressure.

[0069] Instead of such a separate pressure feed device 90, a permanently installed pressure feed device can also be provided. In such a case, a manually opened valve is preferably provided in the vehicle interior, by means of which the pressurization of the pressure chamber 52 can be triggered. Figs. 6A to 6C show an alternative clutch module to each of Figs. 4A and 4B. The special feature of this clutch module 100 of Figs. 6A to 6C lies in particular in the fact that it has an additional functionality, since it also enables a switchable blocking of the output member 46.

[0070] Referring to Fig. 6A, the essential components of the clutch and locking module 100 are explained. The module has a module housing 102, which contains both the clutch device 40 and a locking device 32.

[0071] In this case, too, the coupling device 40 is implemented by means of a drive member 44 and an output member 46, each of which has coupling members 44B, 46B, which are brought into positive engagement or frictional engagement for torque transmission. As in the design of Figs. 4A and 4B, a helical compression spring 58 is provided, by means of which the drive member 44 is permanently pressed in the direction of the output member 46. A pressure chamber 52 is also provided here, which can be pressurized via a fluid connection 54, so that, when sufficient pressure is applied, a pressure piston 56 deflects the drive member 44 against the force of the spring 58, thereby separating the drive member 44 and the output member 46 from one another.

[0072] The special feature of the clutch and blocking module 100 according to Figs. 6A to 6B compared to the clutch module 100 of Figs. 4A and 4B is that a blocking device 32 is additionally provided. This blocking device 32 has a blocking surface 36, which is arranged on the side of the output-member-side clutch member 46B facing away from the clutch member 44B. This blocking surface 36 serves the purpose of securing the clutch member 46B in a rotationally fixed manner to the module housing 102 when the clutch member 46B is in contact. The blocking surface 36 and the opposing counter-surface on the output member 46 can be designed for frictional or positive locking.

[0073] In contrast to the design of Figs. 4A and 4B, the output member 46 also has limited axial movement, while still remaining rotationally coupled to the drive gear 28. When the output member 46 engages the blocking surface 36, a rotational movement of the drive gear 28 is prevented. This is used, in particular, to secure the slide-out box 230 in the retracted state.

[0074] The blocking device 32 is controlled by an electromagnet 34. When the electromagnet 34 is de-energized, the spring 58 not only presses the drive member 44 against the output member 46, but also presses the entire assembly of the rotary members 44, 46 against the blocking surface 36. When the electromagnet 34 is de-energized, the blocking device 32 is thus in the blocked state. This is shown in Fig. 6A.

[0075] To release the blocked state, the electromagnet 34 is energized. As a result, the output member 46 is repelled by the electromagnet 34 and thus lifted from the blocking surface 36 together with the drive member 44 against the force of the spring 58. This state is shown in Fig. 6B. After the blocking is released, the electric motor 22 is energized, allowing the slide-out box 230 to be retracted or extended by the motor.

[0076] If no power is available, for example due to a defect, the state shown in Fig. 6A occurs. In order to be able to manually extend or retract the slide-out box 230, pressure is now applied to the coupling device 40 in the manner already described above, by which the drive member 44 is displaced against the force of the spring 58 in the direction of the output shaft 24 of the electric motor 22. This has the effect that the coupling member 46B of the output member 46 no longer has to remain in engagement with the coupling member 44B of the drive member 44 and is also no longer pressed against the blocking surface 36. The output member 46 and the drive gear 28 can thus now rotate freely. This state is shown in Fig. 6C.

Claims

Patent claims 1. Slide-out arrangement (10) for a vehicle (200) with the following features: a. the slide-out arrangement (10) comprises a vehicle-side assembly (12) for attachment to the chassis of the vehicle (200), and b. the slide-out arrangement (10) comprises an assembly (14) that is displaceable relative to the vehicle-side assembly (12) for attachment to a slide-out box (230), and c. the slide-out arrangement (10) comprises a drive system (20) by means of which the vehicle-side assembly (12) and the displaceable assembly (14) can be moved relative to one another, and d. the drive system (20) comprises at least one electric motor (22) which, in a use state, is operatively connected to at least one drive wheel (28), in particular a drive gear (28), for moving the slide-out box (230), characterized by the following feature: e.the drive system (20) comprises at least one switchable clutch device (40) which is designed as a fluid-controlled clutch device (40) and by means of which the operative connection between the electric motor (22) and the drive wheel (28) can be interrupted and established by establishing a decoupled state.

2. Slide-out arrangement (10) according to claim 1 with the following further feature: a. the coupling device (40) has a pressure chamber (52) by means of which a motor-side drive member (44) and a gear-side output member (46) can be disengaged.

3. Slide-out arrangement (10) according to claim 2 with the following further features: a. a fluid connection (54) is provided on the switchable coupling device (40), and b. a fluid line (72) is provided at the fluid connection (54) which leads to a separate fluid inlet (80) spaced from the fluid connection (54) of the coupling device (40).

4. Slide-out arrangement (10) according to claim 2 or 3 with the following further feature: a. the slide-out arrangement (10) comprises at least one pressure cartridge (92) as part of a pressure feed device (90) for releasing the switchable clutch device (40), wherein the pressure cartridge (92) is preferably filled with CO2 under excess pressure, preferably with the following additional feature: b. the pressure cartridge (92) is part of a separately handled and replaceable pressure feed device (90), which is preferably designed to be connected to an inlet nozzle (82) of the fluid inlet (80) fixed to the vehicle.

5. Slide-out arrangement (10) according to one of the preceding claims with the following further features: a. the slide-out arrangement (10) comprises at least two electric motors (22), each of which is operatively connected to at least one drive wheel (28), and b. each of the at least two electric motors (22) is assigned a switchable clutch device (40), and c. the at least two switchable clutch devices (40) are designed to be switched together from the coupled state to the uncoupled state.

6. Slide-out arrangement (10) according to one of the preceding claims with the following further features: a. the switchable coupling device (40) has a housing (102), and b. the drive member (44) and the output member (46) are each provided with at least one coupling member (44B, 46B) at their mutually facing ends, and c. for the purpose of releasing the coupling device (40), the coupling member (44B) of the drive member (44) or of the driven member (46) is displaceable in the direction of its rotation axis (2) relative to the other coupling member (46B, 46B).

7. Slide-out arrangement (10) according to one of the preceding claims, with the following further feature: a. the drive system comprises at least one rack as part of the slide-out-side assembly, wherein the drive gear is engaged with this rack so that the motor can retract and extend the slide-out box via the drive gear.

8. Slide-out arrangement (10) according to one of claims 1 to 6 with the following further feature: a. the drive system (20) comprises at least one drive chain (30) for moving the slide-out box, which can be driven by means of the drive gear (28) and thereby retracts or extends the slide-out box (230).

9. Slide-out arrangement (10) according to one of claims 7 or 8 with the following further features: a. the drive system (20) comprises a plurality of drive chains (30) or racks, wherein these drive chains (30) or racks are assigned a plurality of drive gears (28) which are rotationally coupled to one another and wherein a common electric motor (22) is assigned to drive the drive gears (28), and b. a common coupling device (40) is provided, by means of which the electric motor (22) can be decoupled from the plurality of drive gears (28).

10. Vehicle (200), in particular a mobile home, with a slide-out arrangement having the following features: a. the vehicle (200) has a vehicle interior (210), and b. the vehicle (200) has a slide-out arrangement (10) with a slide-out box (230) which is displaceable between a storage end position, in which an outer side of the slide-out box (230) is substantially aligned with the surrounding side wall (220), and a use end position, in which the slide-out box (230) is extended outwards to enlarge the vehicle interior (210), characterized by the following additional feature: c. the slide-out arrangement (10) is designed according to one of the preceding claims.

11. A clutch module (100), in particular for a drive system (20) of a slide-out arrangement (10) according to one of claims 1 to 9, having the following features: a. the clutch module (100) has a housing (102) and a rotatably mounted drive member (44) and a rotatably mounted output member (46), and b. the clutch module (100) has a switchable clutch device (40) within the housing (102), by means of which the drive member (44) and the output member (46) can be brought into a rotationally coupled and a rotationally decoupled state, and c. the clutch module (100) has a switchable blocking device (32) within the housing (102), by means of which at least the output member (46) can be braked and / or blocked against rotation with respect to the housing (102).

12. Coupling module (100) according to claim 11 with the following additional features: a. the switchable coupling device (40) is designed as a fluid-controlled coupling device (40) and has a fluid connection (54) for supplying pressurized fluid, and b. the switchable coupling device (40) has a pressure chamber (52), the pressurization of which disengages or keeps engaged a drive-member-side coupling member (44B) and a driven-member-side coupling member (46B).

13. Coupling module (100) according to claim 11 or 12 with the following additional features: a. the blocking device (32) is designed as an electromagnetic blocking device (32), b. the blocking device (32) has an electromagnet (34), by the energization of which the output member (46) or a blocking element which is fixed in rotation therewith can be pulled against a blocking surface (36) of the blocking device which is fixed in rotation with respect to the housing (102) or can be pressed against the force of a spring (58) by a blocking surface (36) which is fixed in rotation with respect to the housing (102).

14. Clutch module (100) according to one of claims 10 to 13 with the following additional features: a. a common clutch and blocking spring (58) is provided, and b. the pressurization of the pressure chamber (52) and the resulting displacement of the drive member-side clutch member (44B) and / or the output member-side clutch member (46B) takes place against the force of the clutch and blocking spring (58), and c. the displacement of the output member (46) and / or the blocking element caused by the electromagnet (34) of the blocking device (32) takes place against the force of the clutch and blocking spring (58), preferably with the following further features: d. the common clutch and blocking spring (58) is designed as a helical spring.

15. Coupling module (100) according to one of claims 10 to 14 with at least one of the following additional features: a. both the drive member (44) and the output member (46) are axially displaceable relative to the housing, and / or b. the housing (102) of the coupling module (100) has screw holes for the direct attachment of an electric motor (22) or a geared motor, and / or c. the output member (46) and the drive member (44) are rotatably mounted coaxially to one another on the housing, and / or d. the blocking device (32) is designed as a frictionally acting blocking device (32), and / or e. the coupling members (44B, 46B) are designed for positive coupling with one another, in particular by means of toothings facing one another.

16. Slide-out arrangement (10) according to claim 5 with the following further feature: a. the slide-out arrangement (10) has a common fluid supply system (70) for applying fluid pressure to the at least two switchable clutch devices (40).

17. Slide-out arrangement (10) according to claim 6 with at least one of the following further features: a. the drive member (44) or the output member (46) is axially rigidly coupled to a pressure piston (56) which is adjacent to a pressure chamber (52) and can be deflected by fluid pressure against the force of a spring (58), and / or b. the drive member (44) or the output member (46) are coaxially rotatably mounted, wherein the drive member (44) is preferably arranged coaxially to an output shaft (24) of the electric motor (22) and is designed to be axially movable relative to the output shaft (24), and / or c. the coupling members (44B, 46B) are provided with toothings which engage with one another in the used state.

18. Slide-out arrangement (10) according to claim 8 with the following further feature: a. the drive chain (30) is designed as a push chain which can be extended from a chain storage (31) by means of the drive gear (28).

19. Vehicle (200) according to claim 10 with the following further feature: a. the vehicle (200) has a fluid inlet (80) in the vehicle interior or on an exterior of the vehicle for pressurizing the at least one coupling device (40), wherein in particular preferably an inlet nozzle (82) is provided which is designed for coupling to a separate pressure feed device (90).

20. Coupling module (100) according to claim 12 with the following further feature: a. the pressurization of the pressure chamber (52) and the resulting displacement of the drive-member-side coupling member (44B) and / or the output-member-side coupling member (46B) takes place against the force of a spring (58).

Images