Device for locking and releasing a door and work machine with such a device

A compact door locking system with integrated actuators addresses the bulkiness of traditional systems, enhancing visibility and access by using a locking container within the door or frame, enabling transparent doors and remote operation.

DE102019134563B4Active Publication Date: 2025-07-03LIEBHERR WERK BISCHOFSHOFEN GMBH
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Patent Information

Application Number
DE102019134563
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2019-12-16
Publication Date
2025-07-03
Estimated Expiration
2039-12-16

AI Technical Summary

Technical Problem

Existing door locking and unlocking systems in vehicles and work machines are bulky, obstructing visibility and requiring multiple components, which limits the use of transparent materials in doors.

Method used

A compact door locking system with a locking container and actuating mechanism, where the locking wedge is integrated into the door or door frame, allowing for a transparent door design, and incorporating electrical and hydraulic actuators for remote operation.

Benefits of technology

The system minimizes space usage, enhances visibility, and enables remote locking/unlocking, maintaining structural stability while optimizing the door's transparency and ease of access.

✦ Generated by Eureka AI based on patent content.

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Abstract

A work machine having an operator's cabin comprising a cabin frame and a cabin door arranged therein, wherein the cabin door in the cabin frame is provided with a device for locking and releasing a door, the device comprising: a locking container with a locking recess for locking or releasing a locking wedge, and an actuating mechanism which actuates the locking recess when pushed in, pulled and / or turned and a locking wedge which can be latched into the latching recess, wherein the locking wedge is arranged in or on a door and the locking container is arranged in or on a door frame or cabin frame of the door characterized by that the locking container further comprises a locking plate which is designed to prevent actuation of the actuating mechanism in one of its two positions, so that actuation of the latching recess is not possible.
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Description

[0001] The present invention relates to a device for locking and releasing a door and a work machine with such a device.

[0002] Devices for locking and unlocking doors are available in a wide variety of designs. Especially in vehicles such as automobiles or mobile work machines, such as wheel loaders, it is advantageous to be able to lock the vehicle interior. To increase the convenience of accessing the vehicle, it has recently become common practice to unlock the door via a radio connection, allowing the door to be unlocked before the vehicle is reached. The same applies, of course, to locking the vehicle, which can be done once you have already reached a certain distance from it.

[0003] Performing these functions requires a multitude of components, typically located in a single door section. Unlike in automobiles, good all-round visibility is even more advantageous in the field of off-highway machinery, allowing the machine to be controlled as optimally as possible and preventing accidents.

[0004] A work machine having the features of the preamble of claim 1 is known from both DE 196 49 377 A1 and DE 10 2004 042 006 B4.

[0005] The aim of the present invention is to provide a device for locking and releasing a door which takes up as little space as possible, which has the advantageous aspect that the glass portion of a door can be increased.

[0006] This is achieved with a device having all the features of claim 1. Further advantageous embodiments are specified in the dependent claims, which also deal with a work machine with such a device.

[0007] The device according to the invention for locking and releasing a door accordingly comprises a locking container with a latching recess for locking or releasing a locking wedge and an actuating mechanism that actuates, in particular releases, the latching recess when pushed in, pulled, and / or turned, and a locking wedge that can be latchably received in the latching recess. The device is characterized in that the locking wedge is arranged in or on a door, and the locking container is arranged in or on a door frame or cabin frame of the door.

[0008] This provides the advantage, among other things, that the door, which can be locked with the device, can be made largely of transparent material. This means that only a locking wedge and a handle are required on the door side, for example, while the bulky locking container is no longer required. The entire locking mechanism is housed in a locking container, which can be installed in a door strut or door frame. It should be noted that the door frame can be part of the cabin's steel structure and can also be referred to as the cabin frame.

[0009] Furthermore, it can be provided that the locking container has a lever for manually actuating, in particular releasing, the locking recess.

[0010] The arrangement of a lever and an actuating mechanism in a locking container, each of which opens the locking recess, results in a very compact design of the locking container. Preferably, the actuating mechanism and the lever are arranged on opposite sides of the locking container, so that the lever can be used, for example, to actuate the locking recess from a first side of a door, e.g., from the interior of a vehicle, and the actuating mechanism from another side of the door.

[0011] Furthermore, it can be provided that the lever is formed in one piece on a lever arm which can be moved by the actuating mechanism, so that when the lever is actuated, the same movement of the lever arm is carried out as when it is pressed in via the actuating mechanism.

[0012] According to the invention, it can also be provided that a first electrical and / or hydraulic actuator for actuating the locking recess is arranged in the locking container, preferably wherein the first actuator can be actuated via a radio connection or an electrical wire-conducted signal. These electrical signals can be triggered, for example, by actuating switches, buttons, pushbuttons, or touch displays.

[0013] The actuator can be designed to act on the lever arm and to perform the same movement of the lever arm as when pressed via the actuating mechanism.

[0014] According to the invention, it is further provided that the locking container has a locking plate which is designed to prevent actuation of the actuating mechanism in one of its two setting positions, so that actuation of the latching recess is not possible, preferably wherein the two setting positions of the locking plate differ from one another only by a linear movement in a longitudinal offset along the longitudinal extent of the locking container.

[0015] As a rule, effective actuation of the actuating mechanism requires a compressive or tensile force to act on a lever arm in order to transmit a force to the engagement recess. For this purpose, the lever of the actuating mechanism can, for example, be designed to be rotatable, with the striking plate in one of its two positions preventing a twisting force from acting on the lever of the actuating mechanism, thus preventing interaction and triggering of the engagement recess. The striking plate can thus shield an engagement surface typically intended for actuating the lever, so that any corresponding movement no longer acts on the lever but is absorbed by the striking plate.

[0016] According to a further optional modification of the invention, it is provided that a further electrical and / or hydraulic actuator for actuating the locking plate is arranged in the locking container, which is designed to selectively transfer the locking plate between its two actuating positions, preferably wherein the second actuator is actuable via an electrical signal, in particular a radio connection. These electrical signals can be triggered, for example, by actuating switches, buttons, pushbuttons, or touch displays.

[0017] This means that not only can the door be opened via the radio-based triggering of the locking recess, but additionally or alternatively it can also be locked via a second radio-based actuator.

[0018] In this case, the locking container can have an elongated, preferably approximately cuboid-shaped outer contour, in which the actuator(s) are arranged offset from one another in the longitudinal direction of the locking container relative to the engagement recess. This is advantageous in terms of minimizing the width of the locking container, as it ensures maximum access width.

[0019] If both the first and second actuators are present, the engagement recess is located between the actuators. The actuators are preferably arranged below and above the engagement recess, as viewed in the longitudinal direction of the locking container.

[0020] Furthermore, it can be provided that the first actuator and / or the second actuator have a respective actuator actuation device in the longitudinal direction of the locking container. This makes it possible for the first actuator and / or the second actuator to perform only a linear movement that is directed essentially parallel to the longitudinal direction of the locking container.

[0021] This not only results in a compact design of the locking container, but also enables a space-saving arrangement of the locking container in a door or cabin strut. Especially with construction machinery, it is essential that the cabin struts are designed to be sufficiently stable to ensure rollover protection. However, this is only reasonably possible if the locking container is designed to be slim, as the recess in the cabin strut for holding the container can then also be dimensioned small and thus has only a minor impact on the associated stability. Furthermore, the slimming of the locking container with its compact installation space maximizes the entry width. This significantly improves the view through a door, for example an all-glass door, as the locking container that is normally arranged in the door and takes up too much space is no longer required.

[0022] Furthermore, according to the invention, it can be provided that the device further comprises a pressure actuating element, in particular a push button, wherein the pressure actuating element is arranged on the door and, in a closed state of the door, projects through a through-opening of the locking container into the interior thereof or is arranged in alignment with the through-opening and rests against the actuating mechanism or is directly adjacent thereto, so that when the pressure actuating element is pressed in, the actuating mechanism of the locking container can be actuated.

[0023] Accordingly, it can also be provided that the actuating mechanism is arranged in the locking container, preferably the locking container completely accommodates the actuating mechanism.

[0024] The access opening can therefore be a recess in an outer wall of the lock container, through which the operating mechanism can be activated from the outside. A pin can be provided on or in the door that can be pushed toward the lock container when the door is closed. When pushed in, this pin passes through the access opening or penetrates further into the interior of the lock container, triggering the operating mechanism.

[0025] Furthermore, it can be provided that a door lock is integrated into the push-button actuation element, which can be used to change the setting positions of the striking plate when the door is closed, preferably in such a way that the door lock is aligned with its longitudinal orientation parallel to the pressing direction of the push-button actuation element and is designed, with a suitable key inserted into the door lock, to rotate a pin arranged there at its end region facing the locking container, which can effect a change in the setting position of the striking plate. The pin rotates around an axis that is parallel to the pressing direction of the door lock or the push-button actuation element.

[0026] Furthermore, it can be provided, for example, that the locking container is mounted on a door strut, and a handle is provided on the pivoting door. When the door is closed, the door lock of the handle can rest against the locking container in such a way that pressing the door lock simultaneously presses the actuating mechanism. Furthermore, the door lock can also be integrated into a door handle.

[0027] Furthermore, it may be provided that, in the case of a locked device, it may be necessary to turn the door lock using a suitable key to open the engaging recess. The rotation of the door lock rotates the pin, which in turn moves a strike plate in its closed position into its open position. The door lock can then be pushed in, triggering the actuating mechanism. If, on the other hand, the door lock is not unlocked, i.e. the associated pin that can be brought into operative connection with the strike plate is not turned, a strike plate in the closed position ensures that the pin or pressure element acting on the actuating mechanism cannot be pushed in.

[0028] Accordingly, it can be provided that the interaction of the door lock and the locking container, when the door is closed, is designed so that the striking plate can be varied in its two setting positions when a suitable key inserted into the door lock is turned.

[0029] In other words, with the help of a key, the strike plate can ensure that the actuating mechanism can no longer be pressed in via the push-button actuating element located on the door.

[0030] According to a further advantageous modification of the present invention, the push-button actuating element can be designed to move the actuating mechanism, when the door is closed, into a position by pushing it toward the locking container to actuate the latching recess. This can be the case, for example, when the strike plate is not in its locking position.

[0031] According to a further optional modification of the invention, it can be provided that the pressure actuating element is integrated into a handle of the door, wherein the handle is preferably fixed and non-rotatably attached to the door.

[0032] The invention also relates to a work machine, in particular a wheel loader, with an operator's cabin having a cabin frame and a cabin door arranged therein, wherein the cabin door in the cabin frame is provided with a device for locking and releasing a door according to one of the variants discussed above.

[0033] It can be provided that the locking container is arranged on or in a cab strut of the cab frame or a cab door. This is particularly advantageous with regard to the stability of the cab frame, as the locking container can be designed very slim, i.e. it extends primarily vertically. This means that, despite the possible arrangement of the locking container in a cab strut, possible requirements regarding the minimum stability of the strut, which must be observed due to a roll-over protection system (ROPS), can be easily met. This allows an improved overview of the work machine without any disadvantages for the roll-over protection system, as the locking container does not entail any disadvantages in the stability of the cab strut.

[0034] In addition, the work machine can also be equipped with a compression spring element, in particular a hydraulic spring, which permanently urges the cabin door into an open position in order to automatically pivot the door into an open position after the latching recess is released. Preferably, a holding mechanism is also provided for holding a cabin door that has been moved into the maximum open position.

[0035] The holding mechanism can hold the door in the open position via a second locking wedge and a second locking recess.

[0036] According to the invention, it can also be provided that the locking container has a connection to a vehicle control of the work machine, wherein the vehicle control is preferably designed to process electrical signals, in particular radio signals, for actuating an actuator in the locking container.

[0037] Furthermore, it can be provided that electrical proximity and contact switches detect the state of the door (closed or open). Such a switch can be located, for example, in the area of the locking recess, thus replacing the sensors typically required in the movable door area that is to be electrically powered.

[0038] Further features, details, and advantages of the invention will become apparent from the following description of the figures. These show: Fig. 1: a schematic representation of a working machine, namely a wheel loader, Fig. 2: a schematic representation of a cabin frame with a closed door and a handle arrangement for both directions of movement, Fig. 3: a schematic representation of the cabin frame without door with locking containers for both directions of movement, Fig. 4: a schematic representation of a cabin frame with an open door, Fig. 5: a schematic representation of a perspective view of a locking container, Fig. 6: a schematic representation of a sectional view of the upper area of a locking container with the opening function not actuated, Fig. 7: a schematic representation of a sectional view of the upper area of a locking container with the opening function activated, Fig. 8: a schematic representation of the locking container together with a handle and a door lock, and Fig. 9a-c: a schematic representation of a door lock in different states and with different positions of the strike plate.

[0039] Fig. Figure 1 shows a work machine 1 in the form of a wheel loader. It can be seen that the latter has a cabin 2 in which an operator of the work machine 1 sits while controlling the machine 1. The work machine 1 can be divided into a front section 4 and a rear section 5, with the rear section 5 being equipped with a drive unit and an engine hood 3. Alternatively, however, it is also possible for the drive unit to be located in the front section.

[0040] To access the driver's cab 2, there is a ladder 6, which is usually arranged in the form of steps or ladder-like elements. The driver's cab 2 is accessible via a cab door 7, which can be pivoted open and closed. At least one hinge 8 is provided for the pivoting movement of the cab door 7, with two hinges 8 arranged one above the other connecting the door 7 to a cab frame. Furthermore, a handle 9 with a door lock as a locking device is provided for engaging the door 7.

[0041] Reference numeral 90 shows the steel structure of the drive machine, which also has a drive element, represented here by tires 91, and a working equipment, which in this case is a bucket 92.

[0042] Fig. 2 shows a schematic representation of the cabin frame 21 with a cabin door 7 arranged therein. The cabin frame 21 runs on all sides along the outer circumference of the door 7, so that when the door 7 in the cabin frame 21 is closed, access to a driver's cabin 2 is not possible.

[0043] Furthermore, it can be seen that the door 7 is attached to the cabin frame 21 on the right side via two hinges 8, so that the door 7 makes a pivoting movement around the right cabin strut when opened or closed.

[0044] Furthermore, two different handles 9 are provided at the same height as the door, so that with appropriate modifications (including hinges on the left cabin strut), a door 7 that opens to the other side can also be implemented. The door 7 would therefore be able to open to both the left and the right. This is particularly advantageous for quantitative scaling of the door. Handle 9 and lock can form a unit and, when the door is closed, are spatially close to the locking container in their function as a counter-element. The elements for locking the door and for triggering the locking recess in the locking container can therefore be arranged and guided in a simple manner. Advantageously, this eliminates the need for cables in the door panel. In addition, the present invention provides the desired easy opening from the outside and secure locking / unlocking of the door.

[0045] Fig. 3 shows a schematic representation of the cabin frame 21 with two locking containers 11 arranged on opposite cabin struts. The narrow silhouette of the two locking containers 11 can be seen and the locking recess and the actuating mechanism can already be seen, which will be described in more detail later.

[0046] The locking container therefore no longer has to be located in a part of the door 7, but can also be firmly attached to the cabin frame 21.

[0047] Fig. Figure 4 shows a schematic representation of a cabin frame 21 with an open door 7. The locking wedge can be seen, which, when the door 7 is closed, interacts with a locking recess in the locking container 11, or is held by it. Arranged below this is a handle element with a door lock, which can be used to open and lock the door 7. When the door 7 is closed, the locking wedge 10 is inserted into the locking recess in the locking container 11 and fixed there. Typically, a locking cam or locking pin engages behind the bow-shaped locking wedge.

[0048] Fig. 5 shows a schematic representation of a perspective view of a locking container 11. Here, the latching recess 12 can be seen, into which the locking wedge of the door 7 can be inserted in a locking manner (although a reversed positioning of the locking wedge on the cabin frame 21 and the locking container 11 on the door 7 is also possible).

[0049] Reference numeral 94 denotes the outer contour of the locking container 11, which has a substantially elongated basic shape. Furthermore, this elongated basic shape can be formed by a cuboid or a substantially similar shape, allowing for easy attachment to a cabin frame.

[0050] A lever 14 also protrudes from the inside of the driver's cab, which can be used to actuate the locking recess. Thus, door 7 can be opened from the inside using the lever 14.

[0051] On a side different from the lever 14, typically on the opposite side, an actuating mechanism 13 is provided, which, when pressed, also actuates the locking recess. Typically, the actuating mechanism is used when the door 7 is to be opened manually from the outside. However, this does not have to be done by actually contacting the actuating mechanism with the hand, but can be accomplished via a handle attached to the door with a depressable lock or simply a depressable button, which in turn acts on the actuating mechanism.

[0052] Fig. 6 shows a schematic representation of a sectional view of the upper area of a locking container 11 with the opening function not actuated.

[0053] Shown in the center is the engagement recess 12, i.e., a door lock, for selectively clamping a locking wedge. The engagement recess is operatively connected to a lever arm 15, which is operatively connected to the lever 14 for actuation from the interior of the cabin 2. According to an advantageous embodiment, this lever arm 15 can be formed integrally with the lever 14. The lever arm is fixed to a pivot axis, so that when the lever 14 is moved upwards, it executes a pivoting movement and acts on the engagement recess 12 in such a way that it transitions to a releasing state, in which any clamped or fixed locking wedge is released.

[0054] Another end of the lever arm, not in direct contact with the engagement recess, is connected to a pressure element 93. When the pressure element is pressed into the locking container, the lever arm acts on the engagement recess in such a way that any clamped or fixed locking wedge is also released. The movement of the lever arm 15 that leads to the release of a locking wedge can always be identical.

[0055] Furthermore, a first actuator 16 can be seen, which is arranged in the locking wedge 11 above the engagement recess 12 and interacts with the lever arm 15. This actuator 16 performs a linear movement upon actuation; in this case, an actuator element is retracted, so that the lever arm is actuated via an actuator rod to release the engagement recess 12.

[0056] Fig. Figure 7 shows a schematic representation of a sectional view of the upper area of a locking container with the opening function activated and corresponding movement arrows.

[0057] Regardless of which of the three options is used to release the locking recess 12, the same movement of the lever arm 15 always occurs. The pivoting movement about the rotary pin of the lever arm leads to a retraction of the pressure element 93, a lifting of the lever 14, which (typically) projects into the cabin interior, and a pushing in of the actuator element.

[0058] One can also see a slight twisting of the engagement recess 12, which leads to the release of any locking wedge held therein.

[0059] The lever arm 15 can therefore, in its basic shape, correspond to a "U", which is rotatably mounted in its connecting web connecting the two legs, preferably via a rotary pin. A stub-like lever can extend from the connecting web, by means of which the lever arm can also be rotated. The end face of one leg can be opposite a pressure element, so that when pressed in, the lever arm can be rotated about its axis of rotation. The other leg can be connected to an actuator, which also generates the desired rotation of the lever arm when pulled, i.e. a movement away from the rotary pin. The end face or an adjacent area of the other leg is connected to a locking recess, so that this releases a locking wedge received in the locking recess when required.

[0060] Fig. Figure 8 shows a schematic representation of a sectional view of the lower portion of a locking container 11 together with a handle 9 and a door lock.

[0061] In addition to the elements already known from the previous figures, this figure also shows a handle 9 with a door lock 94, which can be pressed in opposite the handle 9 and, when arranged accordingly, can actuate the pressure element 93 of the locking container 11.

[0062] The handle 9 can be fixed rigidly or rotatably to the door 7, which with its (in Fig. 8 not shown) locking wedge can be fastened in the locking recess 12.

[0063] Furthermore, a locking plate 18 can be seen, which can be moved between its two positions via a second actuator 17.

[0064] In an “open” position, the strike plate 18 does not interact with the pressure element 93 when pressed in, so that the previously described mechanism for opening the lock can be carried out.

[0065] However, this is different when the strike plate 18 is in a "locked" position. In such a position, pushing it in from the outside is prevented. The pressure element 93 strikes a surface of the strike plate 18, preventing the locking recess 12 from being released and the door 7 remaining closed. The striker wedge is not released.

[0066] In addition, a second actuator 17 can be seen, which is arranged below the engagement recess and even below the pressure element 93 and can transfer the strike plate into its two setting positions “open” and “locked” via a linear movement.

[0067] Just like the first actuator 16, the second actuator 17 can also be remotely controlled, preferably via radio signals or wired electrical signals.

[0068] However, even with a locking plate in the "locked" position, it is not possible to lock an operator in the cabin, as the pressure element 93 and the lever arm 15 are separate components, allowing the lever 15 to still be operated. However, manual opening from the outside is no longer possible, as the pressing of the pressure element 93 is prevented.

[0069] The handle 9 arranged on the outside of the door 7 can have a door lock 94. However, it is also conceivable that the handle 9 and the door lock 94 are independent elements.

[0070] The door lock 94 is also designed to be depressible, so that when pressed, the impulse generated thereby can be passed on to the pressure element 93 in order to open the door 7.

[0071] In addition, the strike plate can be moved into its two positions via the door lock 94.

[0072] The Fig. 9a-c each show a schematic representation of a pressure element 93 in different states and at different positions of the striking plate 18.

[0073] Fig. Figure 9a shows a state in which the strike plate 18 is arranged in a locked position. The circumferential ring 931, which is arranged rearwardly around the pressure element 93 and rigidly connected to the pressure element 93, strikes the strike plate 18 during a pressing attempt, preventing the door 7 from opening.

[0074] The other two figures each show a state in which the strike plate 18 is arranged in an open position.

[0075] Fig. 9b shows a manually unlocked state. By inserting the appropriate key into the door lock 94 and turning the key, the pressure element 93 can be rotated. The door lock 94 and the pressure element 93 can be connected to one another in a rotationally fixed manner when the door 7 is closed. The rotational movement is then converted into a linear movement of the striking plate 18 via a pin 932, so that the latter is transferred from its locked position to the open position. Furthermore, a spring element (not shown) can be provided for this purpose, which returns the pin 932 to its horizontal starting position. If the pin 932 is deflected from this horizontal position, the door-side pressure element 93 with the pin 932 arranged thereon cannot be separated from the locking container, since an outer wall 934 of the locking container prevents the door orThis prevents the component of the elements arranged on the door side from being pulled out of the locking container, thus also preventing the locking wedge and the locking recess from being decoupled. This is only possible if the pin 932 is in the intended position and, when pulled out, is guided out through the recess 933 in the outer wall of the locking container. To prevent unwanted breaking open of the locking container, this recess 933 is adapted very precisely to the contour of the pin 932, so that a wire or a similar element can only be inserted from the outside under difficult conditions to displace the striking plate 18.

[0076] Fig. 9c shows a state unlocked by the second actuator 17. In contrast to Fig. 9b this state is the stationary unlocked state, ie it was released by a spring return from the Fig. 9b on the condition in Fig.9c pivoted. The pin 932 is now in an approximately horizontal position. This defined end position is crucial, among other things, for opening the door. If, for example, the latching recess is now additionally released by the actuating mechanism, the pin 932 can slide out of the locking container through the corresponding opening 933 and thus release the door. It is clear that the unlocking, i.e. the displacement of the striking plate 18, does not have to take place mechanically, but can also be controlled via the second actuator 17 such that the striking plate 18 is moved into its open position. The ring 931 is therefore no longer blocked by the striking plate 18, so that the pressure element 93 can be pressed in again.

Claims

[1] Work machine with an operator's cabin having a cabin frame and a cabin door arranged therein, wherein the cabin door in the cabin frame is provided with a device for locking and releasing a door, the device comprising: a locking container with a locking recess for locking or releasing a locking wedge, and an actuating mechanism which actuates the locking recess when pressed, pulled and / or turned and a locking wedge which can be latched into the latching recess, wherein the locking wedge is arranged in or on a door and the locking container is arranged in or on a door frame or cabin frame of the door characterized by , that the locking container further comprises a locking plate which is designed to prevent actuation of the actuating mechanism in one of its two setting positions, so that actuation of the locking recess is not possible. [2] Work machine according to claim 1, wherein a first electrical and / or hydraulic actuator for actuating the latching recess is further arranged in the locking container, preferably wherein the first actuator can be actuated via an electrical signal, in particular a radio signal. [3] Work machine according to claim 1 or 2, wherein the two setting positions of the locking plate differ from each other only by a linear movement in a longitudinal offset along the longitudinal extent of the locking container. [4] Work machine according to one of claims 1 to 3, wherein a second electrical and / or hydraulic actuator for actuating the locking plate is further arranged in the locking container, which second actuator is designed to selectively transfer the locking plate between its two setting positions, preferably wherein the second actuator is actuable via an electrical signal, in particular a radio signal. [5] Work machine according to one of the preceding claims 2 to 4, wherein the locking container has an elongated, preferably approximately cuboid-shaped outer contour, in which the actuator or actuators are arranged offset from one another in the longitudinal direction of the locking container with respect to the locking recess. [6] Work machine according to claim 5, wherein the first actuator and / or the second actuator have a respective actuator actuation direction in the longitudinal direction of the locking container. [7] Work machine according to one of the preceding claims, further comprising a pressure actuating element, in particular a push button, wherein the pressure actuating element is arranged on the door and, in a closed state of the door, projects through a through-opening of the locking container into the interior thereof or is arranged in alignment with the through-opening and bears against the actuating mechanism or is adjacent thereto, so that when the pressure actuating element is pressed in, the actuating mechanism of the locking container can be actuated. [8] Work machine according to claim 7, wherein a door lock is integrated into the pressure actuating element, which can be used in a closed state of the door to change the setting positions of the locking plate, preferably in such a way that the door lock is aligned with its longitudinal orientation parallel to the pressure direction of the pressure actuating element and is designed to carry out, with a suitable key inserted into the door lock, a rotation of a pin arranged there at its end region facing the lock container, which pin can bring about a change in the setting position of the locking plate. [9] Work machine according to claim 8, wherein an interaction of the door lock and the locking container in a closed state of the door is designed such that the locking plate can be varied in its two setting positions upon rotation of a suitable key inserted into the door lock. [10] Work machine according to one of the preceding claims 7 to 9, wherein the pressure actuating element is designed to transfer the actuating mechanism, in a closed state of the door, by means of a pressing in the direction of the locking container into a position in order to effect an actuation of the latching recess. [11] Work machine according to one of the preceding claims 7 to 10, wherein the pressure actuating element is integrated into a handle of the door, wherein preferably the handle is fixedly and non-rotatably attached to the door. [12] Work machine according to one of the preceding claims, wherein the locking container is arranged on a cabin strut of the cabin frame or a cabin door. [13] Work machine according to one of the preceding claims, further comprising a compression spring element, in particular a hydraulic spring, which permanently urges the cabin door into an open position in order to automatically pivot the door into an open position after the latching recess has been released, preferably further comprising a holding mechanism for holding a cabin door moved into the maximum open position. [14] Work machine according to one of the preceding claims, wherein the locking container has a connection to a vehicle control of the work machine, wherein preferably the vehicle control is designed to process electrical signals, in particular radio signals, for actuating an actuator in the locking container. [15] Work machine according to one of the preceding claims, wherein the work machine is a wheel loader. [16] Work machine according to one of the preceding claims, wherein the actuating mechanism releases the locking recess when pushed in, pulled and / or turned.

Citation Information

Patent Citations

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