CABIN FOR AN AGRICULTURAL MACHINE

Description

[0001] The present invention relates to a cabin for an agricultural machine, in particular a tractor, according to the preamble of independent claim 1, and to an agricultural machine, in particular a tractor, with such a cabin according to the preamble of independent claim 11.

[0002] Agricultural machinery, such as tractors, forage harvesters, or combine harvesters, typically features a cab for the operator. This cab has one or more windows that provide the operator with a view of the outside and protect them from environmental elements like rain or dirt. To improve visibility and thus safety when operating the agricultural machinery, the cab should offer the operator the clearest possible view. Therefore, modern cabs often feature generous glazing with large windows to ensure optimal visibility.

[0003] To ensure the cab can be cleaned of contaminants during operation, at least some of the cab windows, particularly the front and rear windows, are equipped with a windshield wiper that can be activated manually or automatically to remove the contaminants. Such a windshield wiper is known, for example, from DE 10 2012 107 231 A1. A handle for operating, i.e., pivoting, and locking a tractor's rear window is known from WO 2015 / 198999 A1 or WO 2015 / 199182 A1.

[0004] Unlike windshield wipers, the use of rear window wipers can present operational challenges due to the wiper's position and the design of the rear window. For example, the rear window wiper of a cab is typically mounted in the upper part of the window, with the motor required to drive it located close to or on the cab's roof structure. Furthermore, the rear windows of agricultural machinery cabs are characterized by their ability to pivot from the closed position to one or more open positions. This allows, for instance, the routing of hydraulic and / or electrical cables of varying sizes into the cab and / or provides better visibility of the rear of the machine and any attached implements.The positioning of the windshield wiper in combination with the swiveling of the rear window can, under certain circumstances, especially when the rear window is swivelled wide, cause the wiper blade to move out of its intended alignment, particularly to twist, which in turn can lead to significant damage to the rear window, the frame structure of the cabin and / or the mechanical components of the windshield wiper.

[0005] Based on this, the object of the present invention is therefore to eliminate the described disadvantages of the prior art and in particular to provide a cabin in which damage to the rear window, the frame structure of the cabin and / or the mechanical components of the windshield wiper due to such misalignment of the windshield wiper can be avoided.

[0006] This problem is solved according to the invention by the features of independent claim 1, wherein advantageous further developments of the cabin according to the invention are the subject of the corresponding dependent claims 2 to 10.

[0007] The present invention relates to a cab for an agricultural machine, in particular a tractor. The cab comprises a frame structure on which a rear window is pivotably mounted, the rear window being pivotable between a closed position, a first open position, and a second open position, and lockable in each of these positions. A handle is provided for operating and locking the rear window, comprising an actuating element attached to the rear window and a retaining element attached to the frame structure. The cab further includes a windshield wiper for cleaning the rear window. The cab is characterized in that the handle includes a sensor device, wherein the sensor device interacts with the actuating element in the closed position and the first open position of the rear window, and operation of the windshield wiper is only enabled under these conditions.

[0008] A closed position of the rear window is defined such that the rear window is not pivoted, meaning it closes the rear opening in the cabin formed by the frame structure. The first open position of the rear window is defined such that the rear window is only slightly pivoted, i.e., slightly open, allowing cables of various dimensions to be routed from the outside into the cabin interior through the opening. The second open position is defined such that the rear window is significantly pivoted, i.e., opened much more than in the first open position. In this second open position, the rear window is preferably not, or only negligibly, within the operator's field of vision. The rear window is particularly preferably aligned or pivoted essentially parallel to a roof structure of the frame that forms the cabin roof.

[0009] The inventive design allows for a particularly straightforward detection of whether the rear window is in the closed position, the first open position, or the second open position. Depending on the detected position of the rear window, the system can then enable or disable the operation of the windshield wiper for cleaning the rear window. The handle for operating (i.e., opening) and locking the rear window can thus be used, by adding a sensor device that is inexpensive and easy to mount on the handle, to determine the position of the rear window relative to the cabin frame structure. This determination is based on the interaction of the sensor device and the handle's actuating element, or the lack thereof. The windshield wiper is then disabled when the rear window is fully closed or partially open.When swung open, i.e., in the second open position, it prevents the windshield wiper from causing damage to the rear window, the cabin and / or the components of the windshield wiper itself due to a misalignment caused by the swivel angle during operation.

[0010] According to an advantageous embodiment of the invention, the actuating element comprises a first projection and a second projection which are spaced apart from each other and serve to lock the rear window in the closed position and the first open position.

[0011] In this context, "spaced apart" means that the protrusions extending from the rear window, to which the actuating element is mounted or attached, are spaced apart orthogonally, i.e., arranged one behind the other. In other words, the first protrusion is positioned closer to the rear window than the second protrusion.

[0012] Preferably, the retaining element includes a receptacle in which the first projection for locking the rear window in the closed position of the rear window and the second projection for locking the rear window in the first open position of the rear window are received.

[0013] This design of the handle, specifically the actuating element and the handle's retaining element, allows for particularly easy locking of the rear window in the closed position and the first open position. By actuating, in particular rotating or twisting, the handle, the projections on the actuating element can be moved either into or out of the receptacle of the retaining element, thus making it possible to pivot the rear window into the various positions and lock or secure it there.

[0014] According to an advantageous embodiment of the invention, the holding element of the handle comprises the sensor device.

[0015] Preferably, the sensor device is arranged in the area where the holding element is received.

[0016] According to an advantageous embodiment of the invention, it is provided that the first projection of the actuating device interacts with the sensor device in the closed position of the rear window and the second projection of the actuating device interacts with the sensor device in the first open position of the rear window.

[0017] The positioning of the sensor device on the retaining element, in particular such that the detection area or button of the sensor device lies in the receptacle of the retaining element, ensures that the protrusions which are located in the receptacle of the retaining element when the rear window is locked in the closed position or the first open position, can be used to sensing or detecting these positions of the rear window in an uncomplicated manner and that the windshield wiper can be controlled, i.e. released, based on this.

[0018] According to an advantageous embodiment of the invention, the actuating element comprises a bearing element and a handle element provided with a handle part, wherein the bearing element is attached to the rear window and the handle element is rotatably arranged on the bearing element.

[0019] This design allows for particularly easy mounting of the actuating element on the rear window and at the same time ensures that the actuating element for swiveling and locking the rear window can be moved by an operator in the cabin without much effort.

[0020] Preferably, the first projection and the second projection are formed on the handle element of the actuating element.

[0021] The positioning of the projections on the handle element ensures that when the handle element is actuated by the operator, they are moved or rotated along with the handle part, thereby releasing or enabling the locking of the rear window in the closed position or the first open position and allowing reversible pivoting of the rear window between the different positions.

[0022] According to an advantageous embodiment of the invention, the handle element is provided to have two different surface structures.

[0023] According to an advantageous embodiment of the invention, the handle element is made of two different materials.

[0024] According to an advantageous embodiment of the invention, the handle element comprises two different color coatings.

[0025] According to an advantageous embodiment of the invention, the sensor device is a contact-operated sensor device, in particular a switch, which contacts the actuating element of the handle, in particular the first projection or the second projection, in the closed position and the first open position of the rear window.

[0026] Alternatively, the sensor device is provided to be a non-contact sensor device, in particular a capacitive, inductive or optical sensor, wherein the actuating element, in particular the first projection or the second projection, is located in the detection range of the sensor device in the closed position and the first open position of the rear window.

[0027] The ability to use various sensor devices to sense or detect the different positions of the rear window allows for the freedom to detect the window's position based on the handle, without requiring the handle to have a special structural design. This means that contact between the operating element and the sensor device is not necessarily required in the closed and initial open positions of the rear window. Rather, it is equally possible for the operating element to simply be positioned within the sensor device's detection range.

[0028] In particular, the possibility of equipping the actuating element or the handle element with various features, in combination with a non-contact sensor device, creates a considerable degree of freedom to sensing or detecting the position of the rear window.

[0029] According to an advantageous embodiment of the invention, the sensor device is connected to a control unit for data transmission, wherein the operation of the windshield wiper is enabled by the control unit when the sensor device and the actuating element interact. The control unit can be part of the cabin, part of the machine, or be designed as a remote control unit.

[0030] The use of a control unit that communicates with the sensor unit to transmit data allows the sensor signals from the sensor unit to be processed and used to determine whether the rear window is in the closed position, the first open position, or the second open position. If the control unit determines that the rear window is in the closed position or the first open position, for example, because a specific sensor signal is generated by the sensor unit, and the actuating element, in particular the first or second projection, is thus interacting with the sensor unit, the control unit enables the operation of the windshield wiper.If, however, the control unit determines that the rear window is in the second open position—for example, because the sensor unit is not generating any signal or is generating a different, specific sensor signal—and the actuating element, in particular the first or second projection, is therefore not interacting with the sensor unit, the control unit disables the operation of the windshield wiper. This ensures that the windshield wiper can only be activated when the rear window is closed or only slightly tilted, either manually or automatically. If the rear window is tilted too far, the windshield wiper cannot be activated to prevent potential damage.

[0031] The problem according to the invention is further solved by an agricultural working machine, in particular a tractor, with a cabin according to independent claim 11.

[0032] The present invention is described in more detail below with reference to the embodiments illustrated in the figures.

[0033] They show: FIG. 1 a schematic and exemplary representation of an agricultural machine according to the invention in the form of a tractor; FIG. 2 A schematic and exemplary representation of a rear window of a cab of the agricultural machine according to the invention. FIG. 1 in a closed position; FIG. 2 Schematic and exemplary representation of the rear window of the cabin of the agricultural machine according to the invention. FIG. 1 in a first open position; and FIG. 2C a schematic and exemplary representation of the rear window of the cab of the agricultural machine according to the invention. FIG. 1 in a second disclosure.

[0034] FIG. 1 Figure 1 shows a schematic and exemplary representation of an agricultural machine 1 according to the invention in the form of a tractor 2, the basic structure of which is known. The agricultural machine 1 therefore comprises a plurality of working units (not shown in the figures) that serve to drive the agricultural machine 1 and / or an implement coupled to the agricultural machine 1 (not shown in the figures). For controlling and generally monitoring the operation of the agricultural machine 1, it comprises a cabin 3 according to the invention, in which an operator (not shown in the figures) is located during operation of the agricultural machine 1. Furthermore, the cabin 3 comprises a frame structure 4, of which in FIG. 1 A roof structure 5, a floor structure 6, and support columns 7, 8, so-called A- and B-pillars of the cabin 3, are shown. The frame structure 4 can include further structural elements, for example, a cross member 9 extending between the two support columns 7 forming the A-pillars or a cross member 9 extending between the two support columns 8 forming the B-pillars, as shown in the FIGs. 2A bis 2C The cab 3 is comprised of the following components: A windshield 10 extends transversely between the A-pillars 7 forming the load-bearing columns, forming a front enclosure of the cab 3. In addition to the windshield 10, the cab 3 includes a side window 11 on each side, which may form part of an access door to the cab 3. The side windows 11 extend between each A-pillar 7 and each B-pillar 8.

[0035] Furthermore, the cabin 3 includes a rear window 12, which extends between the B-pillar support columns 8, the roof structure 5, and the cross member 9, and which is pivotably mounted on the frame structure 4, for example, on the roof structure 5 or the B-pillar support columns 8. The rear window 12 can be reversibly pivoted from a closed position S to a first open position O1 and a second open position O2, as shown in FIG. 1 The positions S, O1, and O2 are schematically indicated by dashed lines and are locked in each of these positions. The closed position S of the rear window 12 is defined such that the rear window 12 is not pivoted, i.e., the rear window 12 closes the rear opening in the cabin 3 formed by the frame structure 4, in particular by the roof structure 5, the support columns 8 forming the B-pillars, and the cross member 9. The first open position O1 of the rear window 12 is defined such that the rear window 12 is only slightly pivoted, i.e., slightly open, so that cables of various dimensions can be routed from the outside into the cabin interior through the opening formed between the rear window 12 and the frame structure 4. The second open position O2 is defined such that the rear window 12 is more fully opened than in the first open position O1.In the second open position O2, the rear window 12 is preferably not, or only negligibly, within the operator's field of vision. In the second open position O2, the rear window 12 is particularly preferably aligned or pivoted essentially parallel to the roof structure 5 of the cabin 3. A handle 13 is provided for pivoting and locking the rear window 12, which is described in detail in the following. FIGs. 2A bis 2C This is shown and will be discussed further below.

[0036] Cabin 3 further comprises various windshield wipers or wiper systems for cleaning the windows 10, 11, 12 of cabin 3, the basic design of which consists of a motor-driven or pivotable wiper arm and a wiper blade attached or mounted to it. The following refers to the FIG. 1 Reference is made to the schematically depicted windscreen wiper 14 of the rear window 12, the motor for which is provided for the drive - not shown in the FIGS. - and which can be mounted or attached close to or on the roof structure 5 of the cabin 3, either inside or outside.

[0037] As described at the outset, the positioning of the windshield wiper 14, in particular the motor, in combination with the pivoting of the rear window 12 during operation of the windshield wiper 14 may, under certain circumstances, especially when the rear window 12 is in the second open position O2, cause the windshield wiper 14 or the wiper blade of the windshield wiper 14 to move out of the intended alignment, in particular to twist, which may cause damage to the rear window 12, the frame structure 4 of the cabin 3 and / or the mechanical components of the windshield wiper 14.

[0038] To prevent such operating states of the windshield wiper 14, the invention proposes a device as part of the cabin 3 by means of which it can detect whether the rear window 12 is in the closed position S, the first open position O1 or the second open position O2. Depending on the detected position S, O1, O2 of the rear window 12, the operation of the windshield wiper 14 is either enabled or disabled.

[0039] Referring to the FIGs. 2A bis 2C This facility will be described in detail below, whereby the FIG. 2A the rear window 12 in the closed position S, the FIG. 2B the rear window 12 in the first open position O1 and the FIG. 2C The rear window 12 in the second open position O2 is shown entirely from the perspective of the cabin interior. FIGs. 2A bis 2C Figure 1 shows the handle 13 of the cabin 3, which is formed from two elements: an actuating element 15 and a retaining element 16. The actuating element 15 is attached to the rear window 12, for example, by means of a screw connection or an adhesive connection. The retaining element 16 is attached to the frame structure 4, in particular to the cross member 9 of the frame structure 4, for example, also by means of a screw connection or an adhesive connection. Alternatively, the retaining element 16 can also be formed integrally with the frame structure 4, in particular with the cross member 9 of the frame structure 4.

[0040] It is essential that the handle 13 includes a sensor device 17 which, in the closed position S of the rear window 12 and in the first open position O1 of the rear window 12, interacts with the actuating element 15 of the handle 13, as shown in the FIGs. 2A und 2B As shown. When the sensor device 17 interacts with the actuating element 15 of the handle, the operation of the windshield wiper 14 is enabled. In the second open position O2 of the rear window 12, however, the sensor device 17 does not interact with the actuating element 15 of the handle 13, as shown in FIG. 2C As shown, in this case, i.e., when the sensor device 17 does not interact with the actuating element 15 of the handle 13, the operation of the windshield wiper 14 is blocked. In other words, the operation of the windshield wiper 14 is only permitted in the closed position S and the first open position O1. The sensor device 17 thus makes it possible to prevent the operation of the windshield wiper 14 when the rear window 12 has been moved to an open position with an increased degree of opening, in which there is a risk of damage due to a change in the orientation of the windshield wiper 14 caused by the degree of opening of the rear window 12. The interaction of the sensor device 17 and the actuating element 15 of the handle 13 is to be understood broadly here.It is conceivable that the actuating element 15 touches the sensor device 17 in the closed position S and the first open position O1 of the rear window 12, the sensor device 17 thereby acting as a contact-operating sensor device 17, for example as a switch, as in the . FIGs. 2A bis 2C It is equally conceivable that the actuating element 15 of the handle 13 in the closed position S and the first open position O1 of the rear window 12 is merely located in a detection range of the sensor device 17, the sensor device 17 being designed as a non-contact sensor device 17, for example as a capacitive, inductive or optical sensor.

[0041] The sensor device 17 is arranged on the retaining element 16 of the handle 13, or the retaining element 16 comprises the sensor device 17. The retaining element 16 further comprises a [missing information] by two [missing information] - in particular in FIG. 2C The projections 18, 19 form a receptacle 20, which serves to lock the rear window 12. The sensor device 17 is preferably arranged or attached to the retaining element 16 in the area of ​​the receptacle 20, wherein the detection area or the button of the sensor device 17 is located in the area of ​​the receptacle 20.

[0042] The actuating element 15 of the handle 13 comprises a first projection 21 and a second projection 22, which serve to lock the rear window 12 in the closed position S and the first open position O1. The first projection 21 is designed to lock the rear window 12 in the closed position S. For this purpose, the first projection 21 is received in the receptacle 20 of the retaining element 16 when the rear window 12 is in the closed position S. The second projection 22, on the other hand, serves to lock the rear window 12 in the first open position O1. For this purpose, the second projection 22 is received in the receptacle 20 of the retaining element 16 when the rear window 12 is in the first open position O1. The first projection 21 is preferably a so-called locking pin or rod, while the second projection 22 is a ventilation pin or rod.The first projection 21 and the second projection 22 are arranged apart from each other on the actuating element 15 of the handle 13. The distance between them is defined here with reference to the... FIGs. 2A bis 2C This means that the projections 21, 22, starting from the rear window 12 on which the actuating element 15 is mounted or attached, are spaced apart from each other in an orthogonal direction, i.e., arranged one behind the other. In other words, the first projection 21 is positioned or arranged closer to the rear window 12 than the second projection 22.

[0043] As in FIG. 2A As can be seen, the first projection 21 of the actuating device 15 of the handle 13 interacts with the sensor device 17 in the closed position S of the rear window 12. The second projection 22 of the actuating device 15 of the handle 13, on the other hand, interacts with the sensor device 17 in the first open position O1 of the rear window 12. In the case that also occurs in the FIGs. 2A bis 2C As shown, the sensor device 17 is designed as a contact-operated sensor device 17, in particular as a switch. Accordingly, the first projection 21 of the actuating element 15 contacts the button of the sensor device 17 in the closed position S of the rear window 12. In the first open position O1 of the rear window 12, the second projection 22 of the actuating element 15 contacts the button of the sensor device 17. If, however, the sensor device 17 is designed as a non-contact sensor device 17, in particular as a capacitive, inductive, or optical sensor, the first projection 21 of the actuating element 15 lies within the detection range of the sensor device 17 in the closed position S of the rear window 12. In the first open position O1 of the rear window 12, the second projection 22 of the actuating element 15 lies within the detection range of the sensor device 17.Regardless of whether the sensor device 17 is designed as a contact-operating sensor device 17 or as a non-contact-operating sensor device 17, the actuating element 15, in particular the first projection 21 or the second projection 22 of the actuating element 15, does not contact or is not in the detection range of the sensor device 17 in the second open position O2 of the rear window 12.

[0044] Based on the detected or sensed position of the actuating element 15, in particular the first projection 21 and the second projection 22, it is thus possible to determine whether the rear window 12 is in the closed position S, in the first open position O1, or in the second open position O2. In the closed position S and the first open position O1 of the rear window 12, it is permissible for the windshield wiper 14, which serves to clean the rear window 12, to be activated manually or automatically if there is contamination on the rear window 12, without the risk of the windshield wiper 14 causing damage during operation due to a misalignment caused by the swivel angle.In the second open position O2 of the rear window 12, however, it is not permissible for the windshield wiper 14 to be activated manually or automatically if there is dirt on the rear window 12, as there is a risk that the windshield wiper 14 could cause damage during operation due to misalignment caused by the swivel angle. The sensor device 17 according to the invention thus allows the position of the rear window 12 relative to the frame structure 4 of the cabin 3 to be determined in a particularly uncomplicated manner and the operation of the windshield wiper 14 to be controlled based on this.

[0045] The actuating element 15 of the handle 13 comprises a bearing element 23 and a handle element 25 provided with a grip part 24. The bearing element 23 is attached to or mounted on the rear window 12, and the grip element 25 is rotatably arranged or mounted on the bearing element 23. The first projection 21 and the second projection 22 are formed on the grip element 25 of the actuating element 15 of the handle 13. The grip part 24 enables an operator of the agricultural machine 1, located in the cab 3, to pivot the rear window 12 between the different positions S, O1, O2. By actuating the grip part 24, in particular by pivoting the grip part 24 by a distance shown in the FIGS.The rotation axis (not shown) passing through the bearing element 23, and the rotation of the handle element 25 about the bearing element 23 induced by this rotation, can release the rear window 12 in the closed position S or the first open position O1 by moving the corresponding projection 21, 22 out of the receptacle 20 of the retaining element 16 of the handle 13. The rear window 12 can be locked in the closed position S or the first open position O1 by actuating the handle part 24, which triggers a rotation of the handle element 25 about the bearing element 23, thereby moving the corresponding projection 21, 22 into the receptacle 20 of the retaining element 16. The sensor device 17 detects the position of the actuating element 15, in particular the first and second projections 21, 22.

[0046] For the purpose of determining the closed position S and the first open position O1 of the rear window 12, the handle element 25 can, instead of or in addition to the projections 21, 22, also include other features that allow the sensor device 17, particularly if it is designed as a non-contact sensor device 17, to determine the positions S, O1 of the rear window 12. For example, it is conceivable that the handle element 25 has two different surface structures, such as two different roughnesses. Likewise, it is conceivable that the handle element 25 is made of two different materials, such as steel and aluminum, aluminum and plastic, or the like. It is also conceivable that the handle element 25 comprises two different color coatings.

[0047] The sensor device 17 is connected to a control unit (not shown in the figures) for data transmission to evaluate the sensor signals. The control unit can, for example, be part of the cabin 3, part of the agricultural machine 1, or be designed as a remote control unit. The control unit processes the sensor signals from the sensor device 17 and determines from these signals whether the rear window 12 is in the closed position S, the first open position O1, or the second open position O2.If the control unit 17 determines that the rear window 12 is in the closed position S or the first open position O1, for example because a sensor signal is generated by the sensor unit 17 and the actuating element 15, in particular the first projection 21 or the second projection 22, is thus interacting with the sensor unit 17, the control unit enables the operation of the windshield wiper 14. If, however, the control unit 17 determines that the rear window 12 is in the second open position O2, for example because no sensor signal is generated by the transmitter unit 17 and the actuating element 15, in particular the first projection 21 or the second projection 22, is thus not interacting with the sensor unit 17, the control unit disables the operation of the windshield wiper 14. This ensures that the windshield wiper 14 can only be activated when the rear window 12 is closed or slightly tilted.However, if the rear window 12 is tilted too far, the windshield wiper 14 cannot be activated in order to avoid any damage.

[0048] Finally, it should be noted that the embodiments described above serve only to describe the claimed teaching, but are by no means to be regarded as limiting or exhaustive. Bezugszeichenliste

[0049] 1 Agricultural machine 2 Tractor 3 Cab 4 Frame structure 5 Roof structure 6 Floor structure 7 Support column 8 Support column 9 Cross brace 10 Windscreen 11 Side window 12 Rear window 13 Handle 14 Windscreen wiper 15 Actuating element 16 Retaining element 17 Sensor device 18 Projection on retaining element 19 Projection on retaining element 20 Receptacle on retaining element 21 First projection on actuating element 22 Second projection on actuating element 23 Bearing element 24 Handle part 25 Handle element S Rear window closed position O1 First rear window open position O2 Second rear window open position

Claims

1. Cabin (3) for an agricultural machine (1), in particular a tractor (2), comprising a frame structure (4) on which a rear window (12) is pivotably mounted, wherein the rear window (12) is able to be pivoted between a closed position (S), a first open position (O1) and a second open position (O2) and is able to be locked in each of these positions, wherein a handle (13) is provided for actuating and locking the rear window (12), said handle comprising an actuating element (15) fastened to the rear window (12) and a holding element (16) fastened to the frame structure (4), wherein the cabin (3) comprises a windscreen wiper (14) for cleaning the rear window (12), characterized in that the handle (13) comprises a sensor device (17), wherein the sensor device (17) interacts with the actuating element (15) in the closed position (S) and the first open position (O1) of the rear window (12), and only then is operation of the windscreen wiper (14) enabled.

2. Cabin (3) according to Claim 1, characterized in that the actuating element (15) comprises a first projection (21) and a second projection (22) which are arranged at a distance from one another and are used to lock the rear window (12) in the closed position (S) and the first open position (O1).

3. Cabin (3) according to Claim 2, characterized in that the holding element (16) comprises a receptacle (20) in which the first projection (21) for locking the rear window (12) in the closed position (S) of the rear window (12) and the second projection (22) for locking the rear window (12) in the first open position (O1) of the rear window (12) are received.

4. Cabin (3) according to one of Claims 1 to 3, characterized in that the holding element (16) of the handle (13) comprises the sensor device (17), wherein the sensor device (17) is preferably arranged in the region of the receptacle (20) of the holding element (16).

5. Cabin (3) according to one of Claims 2 to 4, characterized in that the first projection (21) of the actuating device (15) interacts with the sensor device (17) in the closed position (S) of the rear window (12), and the second projection (22) of the actuating device (15) interacts with the sensor device (17) in the first open position (O1) of the rear window (12).

6. Cabin (3) according to one of Claims 1 to 5, characterized in that the actuating element (15) comprises a bearing element (23) and a grip element (25) which is provided with a grip part (24), wherein the bearing element (23) is fastened to the rear window (12) and the grip element (25) is rotatably arranged on the bearing element (23).

7. Cabin (3) according to Claim 6 in combination with one of Claims 2 to 5, characterized in that the first projection (21) and the second projection (22) are formed on the grip element (25) of the actuating element (15).

8. Cabin (3) according to Claim 6 or 7, characterized in that the grip element (25) has two different surface structures, the grip element (25) is formed from two different materials and / or the grip element (25) comprises two colour coatings that are different from one another.

9. Cabin (3) according to one of Claims 1 to 8, characterized in that the sensor device (17) is a touch-operated sensor device (17), in particular a switch, which in the closed position (S) and the first open position (O1) of the rear window (12) makes contact with the actuating element (15) of the handle (13), in particular the first projection (21) or the second projection (22); or the sensor device (17) is a contactlessly operated sensor device (17), in particular a capacitive, inductive or optical sensor, wherein the actuating element (15), in particular the first projection (21) or the second projection (22), is situated in the detection region of the sensor device (17) in the closed position (S) and the first open position (O1) of the rear window (12).

10. Cabin (3) according to one of Claims 1 to 9, characterized in that the sensor device (17) is connected to a control device for transmitting data, wherein the operation of the windscreen wiper (14) is enabled by means of the control device when the sensor device (17) and actuating element (15) interact.

11. Agricultural machine (1), in particular a tractor (2), having a cabin (3), characterized in that the cabin (3) is designed according to one of Claims 1 to 10.