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    • 2. 发明授权
    • Jib stowing device for jib crane vehicle
    • 起重机吊车的起重装置
    • US08522988B2
    • 2013-09-03
    • US13060394
    • 2009-08-18
    • Kenji TanakaKazuhiro KobayashiToshiaki Arakawa
    • Kenji TanakaKazuhiro KobayashiToshiaki Arakawa
    • B66C23/42
    • B66C23/66B66C23/42B66C23/708B66F17/00
    • The danger of a jib falling off a boom due to an erroneous operation during movement of the jib between a stowage position and an extended position is eliminated. The jib is provided with a pivot pin insertion state detector, pivot pin retraction blocking element, a coupling pin insertion state detector, first and second cables, wherein movement of a coupling pin to a retracted position is restricted by a coupling pin retraction blocking element via the first cable when the pivot pin insertion state detector has detected that the pivot pin is retracted, and movement of the pivot pin to the retracted is restricted by the pivot pin retraction blocking element via the second cable when the coupling pin insertion state detector has detected that the coupling pin is retracted, so that simultaneous removal of both of the pivot pin and the coupling pin is prevented.
    • 消除了在起重位置和伸出位置之间在起重臂运动期间由于错误操作而引起的起重臂的危险。 起重臂设置有枢轴销插入状态检测器,枢转销缩回阻挡元件,联接销插入状态检测器,第一和第二电缆,其中联接销到缩回位置的移动受到联接销回缩阻塞元件的限制 当枢轴销插入状态检测器已经检测到枢轴销缩回时,第一电缆,并且当联接销插入状态检测器已经检测到时,枢轴销向缩回件的运动通过第二电缆通过第二电缆被枢轴销缩回阻挡元件限制 联接销缩回,从而防止了枢转销和联接销的同时拆卸。
    • 3. 发明申请
    • JIB STOWING DEVICE FOR JIB CRANE VEHICLE
    • JIB起重机JIB STOWING DEVICE
    • US20110147331A1
    • 2011-06-23
    • US13060394
    • 2009-08-18
    • Kenji TanakaKazuhiro KobayashiToshiaki Arakawa
    • Kenji TanakaKazuhiro KobayashiToshiaki Arakawa
    • B66C23/68B66C23/42B66C23/687
    • B66C23/66B66C23/42B66C23/708B66F17/00
    • The danger of the jib falling-off due to an erroneous operation both during an operation to extend the jib from a stowage position to an extended position and during an operation to stow the jib from the extended position to the stowage position is eliminated. The jib is provided with a pivot pin insertion state detecting means 5, pivot pin retraction restricting means 7, coupling pin insertion state detecting means 8, first associating means 91 and second associating means 94, wherein movement of a coupling pin 40 to a retracted side is restricted by the coupling pin retraction restricting means 6 via the first associating means 91 when the pivot pin insertion state detecting means 5 has detected a retracted state of a pivot pin 30, and movement of the pivot pin 40 to the retracted side is restricted by the pivot pin retraction restricting means 7 via the second associating means when the coupling pin insertion state detecting means 6 has detected a retracted state of the coupling pin 40, so that simultaneous removal of both of the pivot pin 30 and the coupling pin 40 is prevented even when an erroneous operation is done during the jib extending and stowing stages.
    • 消除了在将起重臂从收起位置延伸到延伸位置的操作期间以及在将起重臂从延伸位置收起到收起位置的操作期间由于错误操作引起的起重臂脱落的危险。 起重臂设置有枢轴销插入状态检测装置5,枢转销缩回限制装置7,联接销插入状态检测装置8,第一关联装置91和第二关联装置94,其中联接销40向缩回侧 当枢轴销插入状态检测装置5检测到枢转销30的缩回状态时,第一关联装置91受到联接销回缩限制装置6的限制,并且枢轴销40向缩回侧的移动受到限制 当联接销插入状态检测装置6检测到联接销40的缩回状态时,通过第二关联装置枢转销缩回限制装置7,从而防止了枢转销30和联接销40的同时移除。 即使在起重机延伸和装载阶段期间进行错误操作。