Elevating and tilting mechanism for crane cab

An elevating and tilting mechanism for a crane cab having a sub-frame mounted to the upper works, a pair of outer arms pivotally connected to the sub-frame and to the platform, a central inner arm pivotally connected to the sub-frame and the platform to form a parallelogram linkage. A pair of elevat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	JENNERJOHN, DENNIS A, JENSEN, LYLE B
Format:	Patent
Sprache:	eng
Schlagworte:	CRANES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HAULING HOISTING LIFTING LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS,WINCHES, OR TACKLES PERFORMING OPERATIONS TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING
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Beschreibung
Zusammenfassung:	An elevating and tilting mechanism for a crane cab having a sub-frame mounted to the upper works, a pair of outer arms pivotally connected to the sub-frame and to the platform, a central inner arm pivotally connected to the sub-frame and the platform to form a parallelogram linkage. A pair of elevating rams connected between the cab frame and the outer arms. A cab is pivotally mounted at its rear to the platform and has a pair of hydraulic tilting rams connected between the platform and the cab.