Construction apparatus with pivotable mast

Details Construction apparatus with pivotable mast Construction apparatus with pivotable mast

2009-06-08

2011-11-01

Canfield, Robert (Department: 3633)

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Tilts relative to base

C052S118000, C052S119000, C212S297000, C212S299000, C212S347000

Reexamination Certificate

active

08046959

ABSTRACT:
The invention relates to a construction apparatus comprising a base carrier, a mast which is arranged on the base carrier in a pivotable manner, a first hydraulic cylinder and a second hydraulic cylinder for erecting the mast, which are connected to each other in an articulated manner in a connecting section, the first hydraulic cylinder being linked to the base carrier and the second hydraulic cylinder being linked to the mast, and a coupling rocker-arm which is linked on one side to the mast and on another side to the connecting section. According to the invention in the part of the connecting section a spacer is arranged, through which the connecting section is supported on the mast in a detachable manner.

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