DE102010000884B4 - Device for tiltably mounting a vehicle cabin of a vehicle on a vehicle body with a stabilizer device - Google Patents

Abstract

Device (1) for tiltably mounting a vehicle cabin (2) of a vehicle on a vehicle body (3) with a stabilizer device (4), which has at least one transverse element (5) extending in the transverse direction of the vehicle and two adjoining transverse elements (5) that extend essentially in the longitudinal direction of the vehicle arm elements (6A, 6B), the stabilizer device (4) being mounted on the vehicle body in the region of the transverse element (5) and having end regions (8) facing away from the connection regions (7) between the transverse element (5) and the arm elements (6A, 6B). of the arm elements (6A, 6B) interacts to an extent that reduces a roll angle (α) of the vehicle cab (2), and an actuator device (9) is provided which, in order to tilt the vehicle cab (2) relative to the vehicle body (3), moves the vehicle cab (2 ) connects to the vehicle body (3), characterized in that the actuator device-side coupling between the vehicle body (3) and the vehicle cabin (2 ) is lifted for active roll compensation for the vehicle cabin (2) and the actuator device (9) connects the stabilizer device (4) to the vehicle cabin (2) in the region of one of the arm elements (6A, 6B).

Description

The invention relates to a device for the tiltable mounting of a vehicle cabin of a vehicle on a vehicle body with a stabilizer device according to the type defined in more detail in the preamble of patent claim 1.

In commercial vehicles known from practice, such as trucks, vehicle cabs or driver's cabs represent the workplace of professional drivers and must meet both the legal and high subjective requirements with regard to comfort. The vehicle cabs are mounted and spring-loaded on a vehicle body or chassis. The suspension is usually designed with air springs, which are positioned at four locations near the corners of the vehicle cabin. Vehicle cab bearings of older generations of vehicles or construction site vehicles are also resiliently mounted on steel springs on the vehicle body.

The part of the mountings that is at the front in relation to a forward direction of travel represents a significant part of the mounting of the driver's cabs on the vehicle body. The vehicle cabs are each designed to be tiltable by this area. Furthermore, the storage areas arranged in the front area of the vehicle cabins are designed with stabilizer devices, via which rolling movements of the vehicle cabins can be supported in the area of the vehicle body and which also take over the longitudinal guidance and the front transverse guidance of the vehicle cabins. Furthermore, stops are often provided in the area of the stabilizer devices to limit a pitching and tilting movement of the vehicle cabins.

The stabilizer devices usually each comprise a transverse element extending in the transverse direction of the vehicle and two adjoining arm elements which extend essentially in the longitudinal direction of the vehicle and are fixedly connected to the transverse element. In the region of the transverse elements, the stabilizer devices are mounted on the vehicle body and interact with end regions of the arm elements facing away from the connection regions between the transverse elements and the arm elements, each to an extent that reduces a rolling angle of the vehicle cabin.

Stabilizer devices of this type represent passive devices whose functionality is essentially unchangeable.

Since the timely and well-dosed setting of a desired torsional moment in the area of the stabilizer devices, depending on the respective operating state, is desired, the above-described stabilizer devices are each designed with an actuator device in the area of the transverse element, by means of which a torque can be introduced into two regions of a transverse element that can be rotated relative to one another , in order to be able to actively influence a roll angle of the vehicle cabin.

That part of the vehicle cabin mounting which is provided in the rear area of the vehicle cabin with respect to a forward direction of travel of the vehicle is designed with an unlocking mechanism in order to enable the vehicle cabin to be tilted. Furthermore, a linkage, which can be designed as a Panhard rod or as a scissor mechanism, can preferably be provided in this area for the rear transverse guidance of the vehicle cabin.

Separate tilting systems are provided for tilting the vehicle cabins, which for example each comprise at least one actuator device or one hydraulic cylinder which is operatively connected at one end to a cabin floor of a vehicle cabin. At the other end, the hydraulic cylinder is connected to the vehicle body. When the hydraulic cylinder is actuated accordingly, the vehicle cab is pivoted about the tilting axis arranged in the front area of the vehicle cab.

Such a tilting system for tiltable spring-loaded cabs of motor vehicles is from the generic DE 88 09 201 U1 known. More tilting vehicle cabins are, for example, from DE 25 48 749 A1 and the WO 2009/070017 A1 known.

Devices described above for tilting a vehicle cabin of a vehicle on a vehicle body, which are additionally designed with an active stabilizer device comprising an actuator device, are disadvantageously characterized by high structural complexity, require a lot of space and cause high production costs, which is undesirable.

The present invention is therefore based on the object of providing a structurally simple device by means of which a vehicle cabin can be tilted in a space-saving and cost-effective manner and by means of which active roll compensation can be carried out in the region of the vehicle cabin.

According to the invention, this object is achieved with a device having the features of patent claim 1 .

In the device according to the invention for the tiltable mounting of a vehicle cabin of a vehicle on a vehicle body with a stabilizer device, which has at least one transverse element extending in the vehicle transverse direction and two adjoining arm elements and essentially extending in the vehicle longitudinal direction, the stabilizer device is mounted on the vehicle body side in the region of the transverse element and cooperates with end portions of the arm members remote from connecting portions between the cross member and the arm members to an extent reducing a roll angle of the vehicle cabin. In addition, an actuator device is provided, which connects the vehicle cabin to the vehicle body in order to tilt the vehicle cabin relative to the vehicle body.

According to the invention, the coupling between the vehicle body and the vehicle cabin on the actuator device side is eliminated for active roll compensation for the vehicle cabin and the actuator device connects the stabilizer device to the vehicle cabin in the region of one of the arm elements.

Compared to known devices for tilting a vehicle cabin on a vehicle body, the device according to the invention is characterized by a simpler structural design and a smaller installation space requirement and can therefore also be produced more cost-effectively, since the active roll support of the mounting of the vehicle cabin is integrated into the already existing tilting mechanism of the vehicle cabin .

In the area of the device according to the invention for tilting relative to the vehicle body, the vehicle cabin is connected to the vehicle body via the actuator device. If there is a corresponding requirement for active roll compensation or roll stabilization, the coupling between the vehicle body and the vehicle cabin on the actuator device side is canceled and the stabilizer device is coupled to the vehicle cabin in the area of one of the arm elements via the actuator device. An actuator force introduced in the area of the actuator device into the stabilizer device and into the vehicle cabin then offers the simple possibility of varying a roll angle of the vehicle cabin depending on the operating state without an additional actuator device in the area of the transverse element of the stabilizer device.

Further advantages and advantageous embodiments of the device according to the invention result from the patent claims and the exemplary embodiments described in principle below with reference to the drawing, the same reference numerals being used in the description of the various exemplary embodiments for the sake of clarity for structurally and functionally identical components.

The features specified in the dependent claims of the device according to the invention are each suitable, alone or in any combination with one another, to further develop the subject matter according to the invention. The respective combinations of features do not represent any limitation with regard to the further development of the subject matter according to the invention, but essentially only have an exemplary character.

• 1 eine vereinfachte Teildarstellung einer ersten Ausführungsform der erfindungsgemäßen Vorrichtung zum kippbaren Lagern einer Fahrzeugkabine eines Fahrzeuges an einem Fahrzeugaufbau mit einer Stabilisatoreinrichtung und einer Aktoreinrichtung zum Verkippen der Fahrzeugkabine gegenüber dem Fahrzeugaufbau in einem Ruhebetriebszustand;
• 2 eine 1 entsprechende Darstellung der ersten Ausführungsform der erfindungsgemäßen Vorrichtung in einem verkippten Betriebszustand der Fahrzeugkabine;
• 3 eine 1 entsprechende Darstellung der ersten Ausführungsform der erfindungsgemäßen Vorrichtung in einem Betriebszustand, zu welchem über die Aktoreinrichtung ein aktiver Wankausgleich im Bereich der Fahrzeugkabine durchführbar ist;
• 4 eine stark schematisierte dreidimensionale Ansicht eines zweiten Ausführungsbeispieles der erfindungsgemäßen Vorrichtung in einem Ruhebetriebszustand der Fahrzeugkabine;
• 5 eine 4 entsprechende Darstellung des zweiten Ausführungsbeispieles der erfindungsgemäßen Vorrichtung mit verkippter Fahrzeugkabine; und
• 6 eine 4 entsprechende Darstellung der zweiten Ausführungsform der erfindungsgemäßen Vorrichtung in einem Betriebszustand, während welchem über die Aktoreinrichtung ein aktiver Wankausgleich im Bereich der Fahrzeugkabine durchführbar ist.

It shows:

• 1 a simplified partial representation of a first embodiment of the device according to the invention for tiltable mounting of a vehicle cabin of a vehicle on a vehicle body with a stabilizer device and an actuator device for tilting the vehicle cabin relative to the vehicle body in an idle operating state;
• 2 one 1 corresponding representation of the first embodiment of the device according to the invention in a tilted operating state of the vehicle cabin;
• 3 one 1 Corresponding representation of the first embodiment of the device according to the invention in an operating state in which active roll compensation can be carried out in the area of the vehicle cabin via the actuator device;
• 4 a highly schematic three-dimensional view of a second embodiment of the device according to the invention in an idle operating state of the vehicle cabin;
• 5 one 4 Corresponding representation of the second exemplary embodiment of the device according to the invention with a tilted vehicle cabin; and
• 6 one 4 Corresponding representation of the second embodiment of the device according to the invention in an operating state during which active roll compensation in the area of the vehicle cabin can be carried out via the actuator device.

In 1 is a first embodiment of a device 1 for tiltable storage of a Vehicle cabin 2 of a vehicle on a vehicle body 3 with a stabilizer device 4 is shown. The stabilizer device 4 comprises a transverse element 5 extending in the transverse direction of the vehicle and two arm elements 6A adjoining it and extending essentially in the longitudinal direction of the vehicle. In the area of the transverse element 5, the stabilizer device 4 is mounted on the vehicle body and interacts with end regions 8 of the arm elements 6A facing away from the connection regions 7 between the transverse element 5 and the arm elements 6A in an extent that reduces a roll angle α of the vehicle cabin 2.

In addition, an actuator device 9 embodied in the present case as a hydraulically actuable, double-acting piston-cylinder unit is provided, which connects the vehicle cabin 2 to the vehicle body 3 in order to tilt the vehicle cabin 2 relative to the vehicle body 3 . A tilting stop 14 is provided in the area of the stabilizer device 4 , which limits the maximum tilting path of the vehicle cabin 2 relative to the vehicle body 3 . The tilt stop 14 can also be designed as a pull stop in the double-acting cylinder.

Depending on the application at hand, however, there is also the possibility of constructing the actuator device 9 as an electromechanical linear actuator, by means of which the tilting force required to tilt the vehicle cabin 2 can be made available between the vehicle body 3 and the vehicle cabin 2 .

In the installation position, the transverse element 5 of the stabilizer device 4 is arranged in a front region of the vehicle cabin 2 with respect to a forward direction of travel X, with the transverse element 5 being positioned to run in the region of a tilting axis 11 of the vehicle cabin 2 .

In relation to the forward travel direction X, the vehicle cabin 2 is in in 1 until 3 detachably mounted on the vehicle body 3 in a manner not shown in detail in a rear area. A spring device 15 is provided between the vehicle cabin 2 and the vehicle body 3 .

The active connections between the stabilizer device 4 and the vehicle cabin 2, between the actuator device 9 and the vehicle body 3 and between the actuator device 9 and the stabilizer device 4 can be switched via switching elements K1 to K3, with the switching elements K1 to K3 being activated manually and depending on the respective application /or can be actuated automatically. The switching elements K1 to K3 can be switched via hydraulic, pneumatic and/or electromechanical or electromagnetic actuators in order to tilt the actuator device 9 either firmly with the vehicle cab 2 and the vehicle body 3 or for active roll compensation with the vehicle cab 2 and the stabilizer device 4 or its arm element 6A to be able to couple as required.

In order to be able to provide active roll compensation for the vehicle cabin 2 via the stabilizer device 4, the actuator device-side coupling between the vehicle body 3 and the vehicle cabin 2 in the area between the actuator device 9 and the vehicle body 3 is canceled by opening the switching element K3, as is the stabilizer device 4 or its arm element 6A separated from the vehicle cabin 2 in the area of the switching element K1. In addition, the stabilizer device 4 is connected to the vehicle cabin 2 by closing the switching element K2 via the actuator device 9 in the region of the arm element 6A.

To tilt the vehicle cabin 2 relative to the vehicle body 3, the switching element K1 is closed and a fixed operative connection is established between the vehicle cabin 2 and the arm element 6A of the stabilizer device 4. In addition, the switching element K2 is opened and the switching element K3 is closed, with the result that an elongation of the actuator device 9 causes the vehicle cabin 2 to tilt in relation to the vehicle body 3 .

2 shows one 1 Corresponding representation, the vehicle cabin 2 being held in a tilted position in relation to the vehicle body 3 via the actuator device 9 . For this purpose, the actuator device 9 is connected in the manner described above to the vehicle body 3 in the area of the switching element K3 and to the vehicle cabin 2 in the area of a coupling point 10 . The operative connection between the arm element 6A of the stabilizer device 4 and the actuator device 9 is canceled in the area of the switching element K2.

In 3 the device 1 is shown in an operating state for which active roll compensation can be carried out via the stabilizer device 4 and the actuator device 9 .

A greatly simplified three-dimensional view of a second exemplary embodiment of the device 1 for tilting the vehicle cabin 2 on the vehicle body 3 is shown in FIG 4 shown. The device 1 according to 4 comprises, in addition to the two arm elements 6A and 6B, a lever element 12 which is arranged parallel to these and which is articulated on the vehicle body side and pivotably connects the actuator device 9 to the vehicle body 3. The lever element 12 is transverse to the vehicle direction provided on the opposite side of the vehicle steering not shown in the drawing, since there is sufficient space for the arrangement of the lever element 12 in this area.

4 shows a rest position of the vehicle cabin 2 relative to the vehicle body 3. In the area of the switching element K1, the arm element 6A can be coupled to the vehicle cabin 2. In the area of the switching element K2, the arm element 6A can be brought into operative connection with the lever element 12, whereby a force generated in the area of the actuator device 9 can be introduced via the lever element 12 into the stabilizer device 4. In addition, the lever element 12 can be firmly connected to the vehicle body 3 in a further area in addition to a pivot point 13 via the switching element K3, so that a pivoting movement of the lever element 12 is prevented when the switching element K3 is closed.

If there is a corresponding requirement to tilt the vehicle cabin 2 relative to the vehicle body 3, the operative connection between the lever element 12 and the arm element 6A of the stabilizer device 4 in the area of the switching element K2 is separated and the lever element 12 is non-rotatably connected to the vehicle body 3 by closing the switching element K3 . The actuator device 9 is then actuated accordingly and the vehicle cabin 2 in 5 shown manner by the actuator device 9 relative to the vehicle body 3 is pivoted.

Since the switching element K1 is closed, the arm elements 6A and 6B of the stabilizer device 4 are tilted or pivoted together with the vehicle cabin 2 about the tilting axis 11 in the region of the transverse element 5 without building up a torsional moment in the region of the stabilizer device 4.

Located starting from the in 4 illustrated rest position of the vehicle cabin 2 before a request for an active roll compensation in the vehicle cabin 2, the switching elements K1 and K3 are opened and the switching element K2 transferred to a closed operating state. This results in the actuator device 9 being coupled to the vehicle cabin 2 and to the arm element 6A.

In 6 the rest position of the vehicle cabin 2 is shown by the line shown under the reference number 2', while the representation of the vehicle cabin 2 shown by the solid line shows a position of the vehicle cabin 2 pivoted by a roll angle α relative to the rest position 2'. By appropriate actuation of the actuator device 9, both the lever element 12 and the arm element 6A of the stabilizer device 4, which is coupled to it in a rotationally fixed manner, are pivoted out of the rest position and, starting from the actuator device 9, a tilting moment that varies the roll angle α is introduced into the vehicle cabin 2, whereby the actuator device 9 acts as a active pendulum support works.

Changes in length in the area of the actuator device 9 lead to a twisting of the stabilizer device 4 in the area of the transverse element 5 via the rigid coupling of the lever element 12 and the arm element 6A, which causes a torsional moment in the area of the transverse element 5.

The switching elements K2 and K3 are in the in 4 until 6 The exemplary embodiment illustrated can also be replaced by a single switching element if the lever element 12 is connected to the vehicle body 3 in a first switching position of the switching element by a coupling element which can be actuated by this switching element and which can preferably be designed as a bolt, while the operative connection between the lever element 12 and the Arm member 6A of the stabilizer device 4 is separated. In a second switching position of the switching element, the lever element 12 is connected to the arm element 6A in the manner described above via the coupling element, which can be actuated via the switching element, while the lever element 12 is released from the vehicle body 3 in the region of the switching element and around the pivot point 13 is pivotable.

Reference List

1

contraption

2

vehicle cabin

2'

Rest position of the vehicle cabin

3

vehicle body

4

stabilizer device

5

transverse element

6A, 6B

arm element

7

connection area

8th

end area

9

actuator device

10

coupling point

11

tilt axis

12

lever element

13

pivot point

14

tilt stop

15

spring device

K1 to K3

switching element

X

forward driving direction

a

roll angle

Claims (13)

Device (1) for tiltably mounting a vehicle cabin (2) of a vehicle on a vehicle body (3) with a stabilizer device (4), which has at least one transverse element (5) extending in the transverse direction of the vehicle and two adjoining transverse elements (5) that extend essentially in the longitudinal direction of the vehicle arm elements (6A, 6B), the stabilizer device (4) being mounted on the vehicle body in the region of the transverse element (5) and having end regions (8) facing away from the connection regions (7) between the transverse element (5) and the arm elements (6A, 6B). of the arm elements (6A, 6B) interacts to an extent that reduces a roll angle (α) of the vehicle cab (2), and an actuator device (9) is provided which, in order to tilt the vehicle cab (2) relative to the vehicle body (3), moves the vehicle cab (2 ) connects to the vehicle body (3), characterized in that the actuator device-side coupling between the vehicle body (3) and the vehicle cabin ( 2) is canceled for active roll compensation for the vehicle cabin (2) and the actuator device (9) connects the stabilizer device (4) to the vehicle cabin (2) in the area of one of the arm elements (6A, 6B). Device (1) after claim 1 , characterized in that the actuator device (9) comprises a fluidically actuable, double-acting piston-cylinder unit. Device (1) after claim 1 , characterized in that the actuator device (9) is designed with an electromechanical linear actuator. Device (1) according to one of Claims 1 until 3 , characterized in that the operative connections between the stabilizer device (4) and the vehicle cabin (2), between the actuator device (9) and the vehicle body (3) and between the actuator device (9) and the stabilizer device (4) via a first switching element ( K1), a second switching element (2) and a third switching element (K3) can be switched. Device (1) after claim 4 , characterized in that the switching elements (K1 to K3) can be actuated manually and/or automatically. Device (1) after claim 4 or 5 , characterized in that the stabilizer device (4) can be coupled to the vehicle cabin (2) in the region of the arm element (6A) which can be connected to the actuator device (9) via the first switching element (K1). Device (1) according to one of Claims 1 until 6 , characterized in that the actuator device (9) is pivotably connected to the vehicle body (3) via a lever element (12) articulated on the vehicle body side, the lever element (12) being arranged parallel to the arm elements (6A, 6B) of the stabilizer device (4). . Device (1) after claim 4 and 7 , characterized in that the lever element (12) via the third switching element (K3) non-rotatably on the vehicle body (3) can be fixed. Device (1) after claim 4 combined with claim 7 or 8th , characterized in that the lever element (12) via the second switching element (K2) with one of the arm elements (6A) of the stabilizer device (4) can be connected. Device (1) according to one of Claims 1 until 9 , characterized in that a spring device (15) is provided between the vehicle cabin (2) and the vehicle body (3). Device (1) according to one of Claims 1 until 10 , characterized in that a tilting stop (14) for the vehicle cabin (2) is provided in the area of the stabilizer device (4). Device (1) according to one of Claims 1 until 11 , characterized in that the stabilizer device (4) is arranged in the installed position in relation to a forward direction of travel (X) in a front area of the vehicle cabin (2) and the transverse element (5) in the area of a tilting axis (11) of the vehicle cabin (2) running is arranged. Device (1) according to one of Claims 1 until 12 , characterized in that the vehicle cabin (2) with respect to a forward direction of travel (X) is detachably mounted on the vehicle body (3) in a rear region.

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