Cab support arrangement for a utility vehicle

Patent metadata

Field	Value
Publication number	US-10549796-B2
Application number	US-201615748326-A
Country	US
Kind code	B2
Filing date	Jun 28, 2016
Priority date	Jul 30, 2015
Publication date	Feb 4, 2020
Grant date	Feb 4, 2020

Abstract

A cabin suspension arrangement for a utility vehicle, having a plurality of trailing arms that extend in a longitudinal direction, by which a driver's cabin is mounted and can pivoted relative to a vehicle frame. Two of the trailing arms are arranged spaced apart from one another in a transverse direction that extends perpendicularly to the longitudinal direction, are connected to one another by a torsion bar spring that extends in the transverse direction, and are arranged at the same height in a vertical direction perpendicular to the longitudinal direction and to the transverse direction, thereby forming a first trailing arm pair. Two other trailing arms are arranged spaced apart from one another in the transverse direction, are arranged at the same height in the vertical direction, and thereby form a second trailing arm pair, which is spaced apart, in the vertical direction, from the first trailing arm pair.

First claim

The invention claimed is:

1. A cabin suspension arrangement, for a utility vehicle, comprising:
a plurality of trailing arms that extend in, or essentially, in a longitudinal direction, by which a driver's cabin being mounted and movable on a vehicle frame,
two of the trailing arms:
being arranged spaced apart from one another in a transverse direction that extends perpendicularly to the longitudinal direction,
being connected to one another by a torsion bar spring that extends in the transverse direction,
being arranged at a same height in a vertical direction perpendicular to the longitudinal direction and to the transverse direction, and
forming a first trailing arm pair, and

two other trailing arms:
being arranged spaced apart from one another in the transverse direction,
being arranged at a same height in the vertical direction, and
forming a second trailing arm pair, which is spaced away from the first trailing arm pair in the vertical direction.

2. The cabin suspension arrangement according to claim 1 , wherein the trailing arms of each of the first and the second trailing arm pairs have an equal length with regard to their longitudinal extension.

3. The cabin suspension arrangement according to claim 2 , wherein the trailing arms of the first trailing arm pair have a same length as the trailing arms of the second trailing arm pair with regard to their longitudinal extension.

4. The cabin suspension arrangement according to claim 1 , wherein the trailing arms of each of the first and the second trailing arm pairs are arranged parallel to one another.

5. The cabin suspension arrangement according to claim 1 , wherein the first and the second trailing arm pairs are arranged parallel to one another.

6. The cabin suspension arrangement according to claim 1 , wherein the trailing arms of each of the first and the second trailing arm pairs are mounted and pivotable, at a first end, to the driver's cabin and, at a second end, to the vehicle frame.

7. The cabin suspension arrangement according to claim 1 , wherein the trailing arms of the first trailing arm pair are mounted to the driver's cabin so as to be pivotable about a first pivot axis which extends in the transverse direction and mounted to the vehicle frame so as to be pivotable about a second pivot axis extending in the transverse direction, and the trailing arms of the second trailing arm pair are mounted so as to pivot on the driver's cabin about a third pivot axis extending in the transverse direction and on the vehicle frame about a fourth pivot axis extending in the transverse direction.

8. The cabin suspension arrangement according to claim 7 , wherein the first pivot axis and the third pivot axis lie in a first plane that extends in the transverse direction and in the vertical direction, and the second pivot axis and the fourth pivot axis lie in a second plane that extends in the transverse direction and in the vertical direction, and the second plane is a spaced away from the first plane in the longitudinal direction.

9. The cabin suspension arrangement according to claim 1 , wherein the driver's cabin is supported on the vehicle frame, in the transverse direction by a supporting member.

10. The cabin suspension arrangement according to claim 9 , wherein the supporting member is spaced away from the first and the third pivot axes in the longitudinal direction.

11. The cabin suspension arrangement according to claim 9 , wherein the supporting member is mounted so as to be pivotable on the vehicle frame about a first supporting member pivot axis that extends in the longitudinal direction and so as to be pivotable on the driver's cabin about a second supporting member pivot axis.

12. The cabin suspension arrangement according to claim 1 , wherein the driver's cabin is supported on the vehicle frame by four spring-damper devices.

13. A cabin suspension arrangement for a utility vehicle, and the cabin suspension arrangement comprising:
first and second pairs of trailing arms extending in a longitudinal direction of the vehicle, and a driver's cabin being mounted, via the first and the second pairs of trailing arms, on a vehicle frame;
the first pair of trailing arms being arranged spaced apart from one another in a transverse direction that extends perpendicularly to the longitudinal direction, the first pair of trailing arms being connected to one another by a torsion bar spring that extends in the transverse direction, and the first pair of trailing arms being arranged at a same height in a vertical direction perpendicular to the longitudinal direction and to the transverse direction; and
the second pair of trailing arms being arranged spaced away from one another in the transverse direction, the second pair of trailing arms being arranged at a same height in the vertical direction, and the second pair of trailing arms being spaced away from the first trailing arm pair in the vertical direction.

14. The cabin suspension arrangement according to claim 13 , wherein the trailing arms of the first pair of trailing arms and the trailing arms of the second pair of trailing arms having equivalent longitudinal lengths.

15. The cabin suspension arrangement according to claim 14 , wherein the trailing arms of the first pair of trailing arms and the trailing arms of the second pair of trailing arms are parallel to one another.

16. The cabin suspension arrangement according to claim 15 , wherein the trailing arms of the first and the second pairs of trailing arms each have a first end and an opposite second end, the first ends of the trailing arms of the first and the second pairs of trailing arms are pivotably mounted to the driver's cabin, and the second ends of the trailing arms of the first and the second pairs of trailing arms are pivotably mounted to the vehicle frame.

17. The cabin suspension arrangement according to claim 16 , wherein the first ends of the trailing arms of the first pair of trailing arms are pivotable about a first pivot axis, the second ends of the trailing arms of the first pair trailing arms are pivotable about a second pivot axis, the first ends of the trailing arms of the second pair of trailing arms are pivotable about a third pivot axis, and the second ends of the trailing arms of the second pair of trailing arms are pivotable about a fourth pivot axis, and the first, the second, the third and the fourth pivot axes each extend in the transverse direction.

18. The cabin suspension arrangement according to claim 17 , wherein the first and the third pivot axes are parallel to one another and define a first plane that extends in the transverse and the vertical directions, and the second and the fourth pivot axes are parallel to one another and define a second plane that extends in the transverse and the vertical directions, and the first and the second planes are parallel to one another and are spaced apart from each other in the longitudinal direction.

Assignees

• Zahnradfabrik Friedrichshafen
• Deere & Co

Inventors

• Helm Eike
• Eismann Jens
• Grossmann Stefan
• Young Donald E
• Roth Jonathan
• Manternach Byron

Classifications

• B62D33/0604

  Cabs insulated against vibrations or noise, e.g. with elastic suspension (resilient connections between superstructure sub-units B62D27/04; damping noise in general G10K11/00; for vehicles in general B60R13/08) · CPC title

• B62D33/06

  Drivers' cabs {(overhead guards, e.g. against loads falling down B60R21/11; roll-over protection B60R21/13)} · CPC title

• B62D33/0608 Primary

  pneumatic or hydraulic suspension · CPC title

• B60G2204/162

  Cabins, e.g. for trucks, tractors · CPC title

• B62D33/0617

  for tractors or off-the-road vehicles (protective devices for drivers in case of overturning of tractors B60R21/131) · CPC title