发明公开
EP2829500A2 Mobile lift crane with variable position counterweight
有权
Mobiler Hebekran mitveränderlicherGegengewichtsposition
- 专利标题： Mobile lift crane with variable position counterweight
- 专利标题（中）： Mobiler Hebekran mitveränderlicherGegengewichtsposition
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申请号： EP14183968.8申请日： 2008-04-01
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公开(公告)号： EP2829500A2公开(公告)日： 2015-01-28
- 发明人: Pech, David , Porubcansky, Kenneth , Lanning, John
- 申请人： Manitowoc Crane Companies, LLC
- 申请人地址： 2400 South 44th Street Manitowoc, WI 54221 US
- 专利权人： Manitowoc Crane Companies, LLC
- 当前专利权人： Manitowoc Crane Companies, LLC
- 当前专利权人地址： 2400 South 44th Street Manitowoc, WI 54221 US
- 代理机构： Boult Wade Tennant
- 优先权： US733104 20070409; EP07254071 20071015; US23902 20080131
- 主分类号： B66C23/76
- IPC分类号： B66C23/76 ; F16H19/04
摘要：
A mobile lift crane (610) includes a carbody (612); moveable ground engaging menbers (614, 616); a rotating bed (620); a boom (622); a moveable counterweight unit (634); and a counterweight movement structure comprising a rack and pinion assembly (636). A method of operating the crane (610) comprises performing a pick, move and set operation, wherein the counterweight unit (634) is moved toward and away from the rotating bed (620) but is never supported by the ground during the operation, other than indirectly by the ground engaging members (614, 616).
公开/授权文献
- EP2829500B1 Mobile lift crane with variable position counterweight 公开/授权日：2016-06-08
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