Patent ID: 6631815
Filing Date: 2003-10-14
Classification: B66C

Abstract:
Turntable for a king post rotary crane having a central column or pylon structured and arrange to be anchored to a base and on which the entire crane is suspended on an upper end of the column or pylon and supported on a lower end of the column or pylon, comprisinga support frame structured and arranged to be slid on and suspended from the pylon, coupling devices connected to the support frame and structured and arranged to couple a crane boom thereto, support devices structured and arranged to allow the support frame to revolve on a longitudinal axis of the pylon, said support devices having an upper support for the suspension of the support frame on an upper end section of the pylon and a lower support for the suspension of the support frame on a lower section of the pylon, and said lower support having a bearing journal structured and arranged to at least partially encircle the pylon, wherein said bearing journal of said lower support is divided, said support frame has an open longitudinal side by which said support frame, with said divided bearing journal, is structured and arranged to slide radially on the pylon, said support frame comprises two side pillars facing each other and joined together along a first longitudinal side of said support frame, said pillars not being joined together on a side opposite to the first longitudinal side of said support frame, and said turntable is structured and arranged to be rotatably secured to the pylon by transversely moving into engagement with the pylon.