Seat device for a construction machine

Patent metadata

Field	Value
Publication number	US-11505095-B2
Application number	US-202016950366-A
Country	US
Kind code	B2
Filing date	Nov 17, 2020
Priority date	Dec 9, 2019
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

A seat device for a construction machine comprising a positioning device and a seat console having a seat arranged thereon, wherein the positioning device comprises a first pivot arm and a second pivot arm for guiding the seat console along a curved trajectory, wherein the pivot arms respectively comprise a first end and a second end, wherein the respective first end of the pivot arms is supported on the positioning device via a respective first rotary joint, and the respective second end of the pivot arms is connected to the seat console via a respective second rotary joint in a manner as spaced apart from each other.

First claim

The invention claimed is:

1. A seat device for a construction machine, comprising a positioning device and a seat console having a seat arranged thereon,
wherein
the positioning device comprises a first pivot arm and a second pivot arm for guiding the seat console along a curved trajectory, wherein the pivot arms respectively comprise a first end and a second end, wherein the respective first end of the pivot arms is supported on the positioning device via a respective first rotary joint, wherein the first rotary joints of the pivot arms have a distance A 1 and the respective second end of the pivot arms is connected to the seat console via a respective second rotary joint in a manner as spaced apart from each other, wherein the second rotary joints of the pivot arms have a distance A 2 , wherein the distance of the first rotary joint of the first pivot arm to the second rotary joint of the first pivot arm is L 11 , and the distance of the first rotary joint of the second pivot arm to the second rotary joint of the second pivot arm is L 12 , and wherein L 11 ≠L 12 , wherein, during positioning, the seat console is moved, starting from a basic position, along the curved trajectory and, in doing so, is rotated inward toward the longitudinal center plane of the positioning device.

2. The seat device according to claim 1 , wherein the curved trajectory along which the seat console is adapted to be positioned lies in a plane orthogonal to the longitudinal center plane of the positioning device.

3. The seat device according to claim 1 , wherein the first pivot arm and the second pivot arm do not intersect each other when the seat console is positioned along the entire course of the curved trajectory.

4. The seat device according to claim 1 , wherein the second rotary joints of the pivot arms are spaced apart at the same distance from the front edge of the seat console, as seen in the seat direction.

5. The seat device according to claim 1 , wherein the following applies: L 11 >A 2 >0.1L 11 and/or L 12 >A 2 >0.1L 12 .

6. The seat device according to claim 1 , wherein the second rotary joint of the first pivot arm is always located between a first plane and a second plane when the seat console is moved, wherein the first plane lies in parallel to the longitudinal center plane of the positioning device and extends through the first rotary joint of the first pivot arm, and wherein the second plane lies in parallel to the longitudinal center plane of the positioning device and extends through the first rotary joint of the second pivot arm.

7. The seat device according to claim 1 , wherein the following applies: A 1 >0.5L 11 and A 1 >0.5L 12 .

8. The seat device according to claim 1 , wherein the positioning device comprises a limiting means which limits the trajectory of the seat console.

9. The seat device according to claim 8 , wherein the limiting means is made up of at least two stops, wherein the trajectory of the seat console is limited by at least one stop in every direction of movement.

10. The seat device according to claim 9 , wherein the at least two stops comprise buffer elements.

11. The seat device according to claim 1 , further comprising a locking device with the aid of which the position of the seat console is adapted be locked relative to the positioning device.

12. The seat device according to claim 11 , wherein the locking device is arranged at the seat console.

13. The seat device according to claim 12 , wherein the positioning device comprises a base plate having at least one recess and the locking device comprises a fixing element, wherein the position of the seat console relative to the positioning device is adapted to be locked by the fixing element engaging in the at least one recess.

14. The seat device according to claim 13 , wherein the base plate of the positioning device comprises at least three recesses, wherein a left-hand end position, a right-hand end position and the basic position of the seat console are defined by a respective recess.

15. The seat device according to claim 11 , wherein the locking device comprises an actuating element for locking and unlocking purposes.

16. The seat device according to claim 1 , wherein the first and/or the second pivot arm have an angled and/or bent shape.

17. A construction machine, in particular an earth-moving machine, comprising a seat device according to claim 1 .

18. The seat device according to claim 1 , wherein the first rotary joints are offset from each other in the direction of travel.

19. The seat device according to claim 1 , wherein A 2 >A 1 .

20. The seat device according to claim 1 , wherein A 2 >A 1 and the first rotary joints are offset from each other in the direction of travel.

Assignees

• Hamm Ag

Inventors

• Reif Gernot
• Reber Stefan

Classifications

• B60N2/38

  specially constructed for use on tractors or like off-road vehicles · CPC title

• B60N2/14 Primary

  rotatable, e.g. to permit easy access (B60N2/10 {, B60N2/2869} take precedence) · CPC title

• B60N2/143

  taking a position opposite to the original one · CPC title

• B60N2/146

  characterised by the locking device · CPC title

• B60N2/24 Primary

  for particular purposes or particular vehicles · CPC title