A suspension device for a springy suspension of a mass body relative to an understructure, for instance suspension of a driver cabin of a truck relative to a vehicle chassis. The suspension device comprises a spring-/damping configuration, located between the mass body and the understructure, for th
A suspension device for a springy suspension of a mass body relative to an understructure, for instance suspension of a driver cabin of a truck relative to a vehicle chassis. The suspension device comprises a spring-/damping configuration, located between the mass body and the understructure, for the damping shock and/or vibration and comprising a Watt linkage configuration with two parallel positioned Watt linkages. A length of at least one of the linkage arms, of the Watt linkage, is adjustable by an actuator. The suspension device is low-maintenance, free of play, and is suitable for determining of the levels of freedom of motion, for instance of a driver cabin, as well as for damping or eliminating unwanted movement of the driver cabin. At the same time, roll motions of the driver cabin, with respect to the understructure or the chassis, can be actively prevented.
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1. A suspension device for a springy suspension of a mass body (3) relative to an understructure (1), the suspension device comprising: a spring/damper-configuration (2), positioned between the mass body (3) and the understructure (1), for damping at least one of shock and vibration;the suspension d
1. A suspension device for a springy suspension of a mass body (3) relative to an understructure (1), the suspension device comprising: a spring/damper-configuration (2), positioned between the mass body (3) and the understructure (1), for damping at least one of shock and vibration;the suspension device comprising a first Watt linkage configuration with parallel positioned first and second Watt linkages (4, 5), each comprising a central strut and first and second transverse struts, interconnecting the mass body (3) with the understructure (1) for reducing a degree of freedom of motion of the mass body (3) relative to the understructure (1), and a central hinge point (C), of each of the first and the second Watt linkages (4, 5), being vertically displaceable in relation to two outer hinge points (A, E) of each of the first and second Watt linkages (4, 5);the first transverse strut (6) of the first Watt linkage (4) having an actuator for adjusting a length of the first transverse strut (6). 2. The suspension device according to claim 1, wherein the actuator is a hydraulic actuator. 3. The suspension device according to claim 1, wherein the actuator is a pneumatic actuator. 4. The suspension device according to claim 1, wherein the actuator is an electrically driven actuator. 5. The suspension device according to claim 1, wherein the first and the second Watt linkages (4, 5) each have hinge connection points (A, B, C, D, E) that lie in and define a common plane. 6. The suspension device as claim 1, wherein the first and the second Watt linkages (4, 5), in reference to a common linear guidance direction, are positioned with an offset with respect to a transverse direction of the vehicle. 7. The suspension device according to claim 1, wherein a connection point of a first central Watt linkage arm (9) of the first Watt linkage (4) is connected with the mass body (3), and a connection point of a second central Watt linkage arm (9) of the second Watt linkage (5) is connected with the understructure (1). 8. The suspension device according to claim 5, wherein a distance (10) between connection points (C) of first and second central Watt linkage arms (9) of the first and the second Watt linkages (4, 5) is greater than a distance (11) between two adjacent outer hinge connecting points (A, E) of the first or the second transverse struts (6, 7, 8) of the first and the second Watt linkages (4, 5). 9. The suspension device according to claim 1, wherein the two outer hinge connection points, which are assigned to transverse struts (6, 7, 8) of the first and the second Watt linkages (4, 5), are each positioned as pairs in one of common hinge connection axes (A′, E′) of the first and the second Watt linkages (4, 5). 10. The suspension device according to claim 9, wherein the transverse struts of the first and the second Watt linkages (4, 5) are positioned in a common swivel axis and designed as a one piece combination strut (13, 14). 11. The suspension device according to claim 1, wherein at least one of the first and the second Watt linkages (4, 5) has at least one hinge connecting point (A, B, C, D, E) which is an elastomeric bearing. 12. The suspension device according to claim 10, wherein a hinge connection axis (A′, E′) of either a commonly hinged or a single piece transversal strut pair are elastically attached to one of the mass body (3) and the understructure (1). 13. The suspension device according to claim 1, wherein the suspension device comprises a second Watt linkage configuration which has parallel positioned first and second Watt linkages (4, 5), whereby a plane of motion of the first Watt linkage configuration is positioned vertically in reference to a plane of motion of the second Watt linkage configuration. 14. The suspension device according to claim 1, wherein the mass body (3) is a driver cabin of a truck. 15. The suspension device according to claim 1, wherein the understructure (1) is a vehicle chassis. 16. A suspension device for a springy suspension of a mass body (3) relative to an understructure (1), the springy suspension comprising a spring/damper-configuration (2) that is positioned between the mass body (3) and the understructure (1) for damping at least one of shocks and vibrations, the suspension device comprising: a Watt linkage configuration with parallel positioned first and second Watt linkages (4, 5) interconnecting the mass body (3) and the understructure (1) for a reduced degree of freedom of motion of the mass body (3) with respect to the understructure (1), andthe first Watt linkage (4) comprising first and second transverse struts and a central and the first transverse strut (6) of the first Watt linkage (4) being alterable in length by an actuator. 17. A suspension device for springy suspension of a driver cabin (3) of a truck relative to a vehicle chassis (1), the suspension device comprising: a spring and damper configuration (2) interconnecting the driver cabin (3) with the vehicle chassis (1) for damping a transfer of at least one of shock and vibration from the vehicle chassis (1) to the driver cabin (3);a Watt linkage configuration being positioned between the driver cabin (3) and the vehicle chassis (1) for reducing a degrees of freedom of motion of the driver cabin (3) with respect to the vehicle chassis (1), the Watt linkage configuration comprising first and second Watt linkages (4, 5) which each interconnected to the driver cabin (3) with the vehicle chassis (1), each of the first and the second Watt linkages (4, 5) comprising first and second transverse struts (6, 7, 8), a central linkage arm (9) and a plurality of connection points (A, B, C, D, E); the first transverse strut (6) of the first Watt linkage (4) being connected, via a first outer connection point (A), to the vehicle chassis (1), and, via a first inner connection point (B), to the driver cabin (3), and the second transverse strut (8) of the first Watt linkage (4) being connected, via a second outer connection point (A), to the vehicle chassis (1), and, via a second inner connection point (B), to the driver cabin (3), anda length of the first transverse strut (6) of the first Watt linkage (4), between the first outer connection point (A) and the first inner connection point (B), being adjustable by an actuator; andthe first transverse strut (7) of the second Watt linkage (5) being connected, via an other first outer connection point (A), to the vehicle chassis (1), and, via another first inner connection point (B), to the driver cabin (3), and the second transverse strut (8) of the second Watt linkage (4) being connected, via an other second outer connection point (A), to the vehicle chassis (1), and, via an other second inner connection point (B), to the driver cabin (3), and a length of the first transverse strut (7) of the second Watt linkage (5), between the other first outer connection point (A) and the other first inner connection point (B), being fixed. 18. The suspension device according to claim 17, wherein the linkage arm (9) of each of the first and the second Watt linkages (4, 5) is connected, via a central connection point (C), to the driver cabin (3) and, via the inner connection point (B) and the other inner connection point (B), to the first transverse strut (6, 7) of the respective first and the second Watt linkages (4, 5), a distance (10) between the central connection points (C) of the respective first and the second Watt linkages (4, 5) is greater than a distance (11) between the inner connection point (B) of the first Watt linkage (4) and the other inner connection point (B) of the second Watt linkage (5). 19. The suspension device according to claim 17, wherein that the outer connection point (A) of the first Watt linkage (4) and the other outer connection point of the second Watt linkage (5) are a common outer connection point (A′) and the first transverse struts (6, 7) of the first and the second Watt linkages (4, 5) are rigidly connected to each other at the common outer connection (A′).
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이 특허에 인용된 특허 (2)
Haeusler, Felix; Eismann, Jens; Kuepker, Timo; Lohmueller, Holger; von Lienen, Marc, Suspension device with Watt's linkage.
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