Seat for a driver of a construction machine, construction machine, as well as method for adjustment of a seat

Patent metadata

Field	Value
Publication number	US-9550437-B2
Application number	US-201514714503-A
Country	US
Kind code	B2
Filing date	May 18, 2015
Priority date	May 19, 2014
Publication date	Jan 24, 2017
Grant date	Jan 24, 2017

Abstract

In a seat ( 1 ) for a driver of a construction machine, in particular for a road roller, featuring a movable seating carriage ( 8 ) with seat adjustment in no less than one shifting direction via a drive motor ( 12 ) which is coupled to the seating carriage ( 8 ) via a transmission element ( 14 ), and featuring a control device ( 16 ) for the seat adjustment, it is provided for the following features to be achieved: for mechanical adjustment of the seating carriage ( 8 ), the drive motor ( 12 ) and/or the seating carriage ( 8 ) is decouplable from the transmission element ( 14 ).

First claim

The invention claimed is:

1. A road roller with a seat for a driver, comprising:
a movable seat carriage;
a steering column movable together with the seat carriage;
a drive motor;
a transmission element extending between the seat carriage and the drive motor so that the seat carriage is movable in at least one shifting direction by power from the drive motor;
a controller to control the drive motor; and
wherein at least one of the seat carriage and the drive motor is configured to be selectively decoupled from the transmission element to allow rapid manual movement of the seat carriage in case of long paths of travel between an outermost left position and an outermost right position as seen in a direction of travel.

2. The road roller of claim 1 , further comprising:
a position sensor configured to detect a current position of the seat carriage and to transmit a measuring signal of the current position to the controller.

3. The road roller of claim 1 , wherein the transmission element includes a drive chain movable with the seat carriage.

4. The road roller of claim 1 , further comprising:
a return spring biasing the drive motor to engage the transmission element.

5. The road roller of claim 1 , further comprising:
an actuator configured to shift the drive motor to decouple the drive motor from the transmission element.

6. The road roller of claim 1 , wherein:
the transmission element includes a drive chain and a sprocket, the sprocket having an internal toothing; and
the drive motor includes a drive shaft having an external toothing configured to be received in the internal toothing of the sprocket to couple the drive motor to the transmission element.

7. The road roller of claim 1 , further comprising:
a position sensor configured to detect a current position of the transmission element and to transmit a measuring signal of the current position to the controller.

8. The road roller of claim 1 , wherein:
the transmission element includes a drive chain and a sprocket; and
further comprising a rotary position sensor operably associated with the sprocket to detect a position of the transmission element and to transmit a measuring signal of the current position to the controller.

9. A seat apparatus for a driver of a construction machine, comprising:
a seat carriage;
a drive motor;
a transmission element extending between the seat carriage and the drive motor so that the seat carriage is movable in at least one shifting direction by power from the drive motor;
a controller to control the drive motor; and
wherein the drive motor is configured to be selectively decoupled from the transmission element to allow manual movement of the seat carriage.

10. The apparatus of claim 9 , wherein:
the transmission element includes a drive chain and a sprocket, the sprocket having an internal toothing; and
the drive motor includes a drive shaft having an external toothing configured to be received in the internal toothing of the sprocket to couple the drive motor to the transmission element.

11. The apparatus of claim 10 , further comprising:
a return spring biasing the drive motor to engage the external toothing of the drive shaft with the internal toothing of the sprocket.

12. The apparatus of claim 10 , further comprising:
an actuator configured to shift the drive motor to disengage the external toothing of the drive shaft from the internal toothing of the sprocket.

13. The apparatus of claim 9 , wherein:
the transmission element includes a drive chain and a sprocket; and
further comprising a rotary position sensor operably associated with the sprocket to detect a position of the transmission element and to transmit a measuring signal of the current position to the controller.

14. The apparatus of claim 9 , further comprising:
a position sensor configured to detect a current position of the seat carriage and to transmit a measuring signal of the current position to the controller.

15. The apparatus of claim 9 , further comprising:
a position sensor configured to detect a current position of the transmission element and to transmit a measuring signal of the current position to the controller.

16. The apparatus of claim 9 , wherein the transmission element includes a drive chain movable with the seat carriage.

17. The apparatus of claim 9 , further comprising:
a return spring biasing the drive motor to engage the transmission element.

18. The apparatus of claim 9 , further comprising:
an actuator configured to shift the drive motor to decouple the drive motor from the transmission element.

Assignees

• Hamm Ag

Inventors

• Mahler Gerhard
• Roemer Axel

Classifications

• B60N2/067

  by linear actuators, e.g. linear screw mechanisms · CPC title

• E01C2301/30

  Cabin details · CPC title

• B60N2/062

  transversally slidable · CPC title

• B60N2/24

  for particular purposes or particular vehicles · CPC title

• B60N2/38

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