US Patent No: 8,061,764
Number of patents in Portfolio can not be more than 2000
Working machine and emergency lowering system
Stats
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Nov 22, 2011
Issued date -
Apr 10, 2009
filing date -
12/384,918
serial no -
In Force
status
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Abstract
The present invention relates to a working machine, in particular a traveling material-handling machine, in particular a hydraulic excavator, comprising a basic machine, a cabin and a cabin arm pivotally mounted on the basic machine, by means of which the position of the cabin with respect to the basic machine can be varied, wherein the cabin arm can be swivelled with respect to the basic machine about a horizontal axis by means of at least one hydraulic actuator, and wherein the cabin is pivotally mounted on the cabin arm via a hydraulic inclination adjustment device. In accordance with the invention, the cabin includes an emergency lowering system, in which an inclination emergency valve is provided for the inclination adjustment device of the cabin, which in a case of emergency lowering provides for alignment of the cabin into a normal position.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 7,419,023 Transfer apparatus | 3 | 2005 | |
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| 5,368,119 Cabin, especially for a cross-country vehicle | 4 | 1993 | |
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| 2010/0264,694 Tilt Device for a Material Handling Machine | 1 | 2008 | |
Patent Citation Ranking
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