Self-propelled ground milling machine, in particular road milling machine, recycler, stabilizer or surface miner, with integrated maintenance platform

Patent metadata

Field	Value
Publication number	US-9764690-B2
Application number	US-201514739437-A
Country	US
Kind code	B2
Filing date	Jun 15, 2015
Priority date	Jun 17, 2014
Publication date	Sep 19, 2017
Grant date	Sep 19, 2017

Abstract

The present invention relates to a self-propelled ground milling machine, comprising a drive engine arranged in an engine compartment and an engine compartment enclosure which covers the engine compartment at least partly to the sides and to the top. A part of the engine compartment enclosure is a cover which is adjustable between a covering position and a maintenance position. At the same time, a maintenance platform is provided which is movable between a stowage position and a maintenance position. When the maintenance platform is in the maintenance position, an operator standing on the floor surface of the maintenance platform can carry out maintenance work in the engine compartment of the self-propelled ground milling machine. The self-propelled ground milling machine preferably is a road milling machine, more particularly a large milling machine, a surface miner, a stabilizer or a recycler.

First claim

What is claimed is:

1. A self-propelled ground milling machine, comprising:
a drive engine arranged in an engine compartment and an engine compartment enclosure which covers the engine compartment at least partly on sides and to a top of the engine compartment, at least a part of the engine compartment enclosure being a cover which is adjustable between a covering position and a maintenance position,
wherein a movable maintenance platform is provided, which is mounted on the ground milling machine so as to move between a stowage position and a maintenance position, the maintenance platform comprising a floor surface for an operator from which said operator can carry out maintenance work in the engine compartment, a railing providing fall protection for a free space between a side wall of the ground milling machine and a rear wall formed by the cover situated in the maintenance position and a laterally protruding transfer plate via which the operator reaches the maintenance platform situated in the maintenance position from an operator platform of the ground milling machine, and the maintenance platform being adjustable together with the cover in such a manner that an adjustment of the maintenance platform to the maintenance position occurs with the adjustment of the cover to the maintenance position, and an adjustment of the maintenance platform to the stowage position occurs with the adjustment of the cover to the covering position.

2. The self-propelled ground milling machine according to claim 1 ,
wherein the cover forms at least partially a part of a side paneling of the engine compartment enclosure.

3. The self-propelled ground milling machine according to claim 1 ,
wherein the cover comprises a side paneling element and a top side paneling element, with the top side paneling element covering the engine compartment upwardly in the vertical direction in the covering position of the cover.

4. The self-propelled ground milling machine according to claim 1 ,
wherein the cover and/or the maintenance platform are mounted on the ground milling machine so as to be able to swivel between the covering position and/or the stowage position and the respective maintenance position.

5. The self-propelled ground milling machine according to claim 1 ,
wherein the cover and the maintenance platform can swivel about a common swivel axis.

6. The self-propelled ground milling machine according to claim 1 ,
wherein the cover and the maintenance platform can respectively swivel about a separate swivel axis, the two swivel axes extending parallel to each other.

7. The self-propelled ground milling machine according to claim 1 ,
wherein the cover and/or the maintenance platform are mounted on the ground milling machine so as to be linearly displaceable between the covering position and/or the stowage position and the respective maintenance position.

8. The self-propelled ground milling machine according to claim 1 ,
wherein the maintenance platform is covered at least partly to the outside in the stowage position by the cover situated in the stowage position.

9. The self-propelled ground milling machine according to claim 1 ,
wherein the railing protrudes in an upright manner essentially perpendicularly from said maintenance platform.

10. The self-propelled ground milling machine according to claim 9 ,
wherein the railing is fixedly connected to the maintenance platform.

11. The self-propelled ground milling machine according to claim 9 ,
wherein the railing is connected to the maintenance platform so as to be able to swivel from an upright fall protection position to a stowage position resting flat on the floor surface of the maintenance platform.

12. The self-propelled ground milling machine according to claim 11 ,
wherein the swiveling railing provides fall protection for a free space between a side wall of the ground milling machine and a rear wall formed by the cover situated in the maintenance position.

13. The self-propelled ground milling machine according to claim 9 ,
wherein the maintenance platform and the railing form a maintenance balcony which protrudes to the side of the ground milling machine and is accessible from the side in the maintenance position.

14. The self-propelled ground milling machine according to claim 1 ,
wherein the maintenance platform and the cover are connected to each other via a guide device which provides a transfer of motion between the cover and the maintenance platform.

15. The self-propelled ground milling machine according to claim 14 ,
wherein the guide device is an adjustable connecting strut, a cylinder-piston unit or a pin guided in a slideway.

16. The self-propelled ground milling machine according to claim 1 ,
wherein adjusting movement of the maintenance platform and/or the cover between the covering and maintenance positions is driven by a drive device.

17. The self-propelled ground milling machine according to claim 1 ,
wherein a latching device is provided which is implemented in such a manner that it fixes the maintenance platform and/or the cover in the maintenance position.

18. The self-propelled ground milling machine according to claim 1 ,
wherein the self-propelled ground milling machine comprises a milling drum arranged on a machine frame.

19. The self-propelled ground milling machine according to claim 18 ,
wherein the maintenance platform and the cover are articulated to the machine frame of the self-propelled ground milling machine.

20. The self-propelled ground milling machine according to claim 18 ,
wherein the maintenance platform is arranged on the self-propelled ground milling machine in such a manner that, in the maintenance position, the maintenance platform is situated essentially at the level of a floor surface of the operator platform.

21. The self-propelled ground milling machine according to claim 18 ,
wherein the maintenance platform is arranged in a working direction (a) of the self-propelled ground milling machine behind the operator platform.

22. The self-propelled ground milling machine according to claim 18 ,
wherein the operator platform of the self-propelled ground milling machine comprises a roof which can be swiveled between a working position and a transport position, the roof being able to be swiveled forwardly in a working direction from the working position to the transport position.

23. The self-propelled ground milling machine according to claim 1 ,
wherein the maintenance platform is part of the cover with its exterior side and thus part of the engine compartment enclosure.

24. A self-propelled ground milling machine, comprising:
a drive engine arranged in an engine compartment and an engine compartment enclosure which covers the engine compartment at least partly on sides and to a top of the engine compartment, at least a part of the engine compartment enclosure being a cover which is adjustable between a covering position and a maintenance position,
wherein a movable maintenance platform is provided which is mounted on the ground milling machine so as to move between a stowage position and a maintenance position, the maintenance platform being part of the cover with an exterior side of the maintenance platform being part of the engine compartment enclosure and comprising a floor surface for an operator from which said operator can carry out maintenance work in the engine compartment, and the maintenance platform bein

Assignees

• Bomag Gmbh

Inventors

• Thelen Thomas
• Starkmeth Moritz

Classifications

• E01C23/127

  rotary, e.g. rotary hammers · CPC title

• B62D25/10

  Bonnets or lids {, e.g. for trucks, tractors, busses, work vehicles (for truck beds B60J7/1607; for boats B63B19/12; doors arranged at the vehicle rear B60J5/10; inlet covers for vehicle fuel tanks B60K15/05; for protecting non-occupants of a vehicle B60R21/38)} · CPC title

• B60R3/002

  Running boards (for vehicle tops B60R3/005; at the sides of the vehicle for carrying loads B60R9/02) · CPC title

• E01C23/088 Primary

  Rotary tools, e.g. milling drums {(for forming recesses to receive marking materials E01C23/0946)} · CPC title

• B60R3/02 Primary

  Retractable steps {or ladders, e.g. movable under shock (B60R3/005 takes precedence)} · CPC title