| 摘要 |
The present invention comprises a manoeuvring seat arrangement (30), relating to a crane arrangement, comprising a seat (31) intended for an operator with a back support (32) that is attached to it; a control lever or a number of control levers (40, 41) that are readily accessible for the operator's hand or hands, in order through these to be able to influence one or several valve units that are components of a hydraulic system for the influence of and the control of one or several piston-cylinder arrangements that are components of the said crane arrangement, in order, among other operations, to manoeuvre arms related to the crane arrangement; and a protecting rail (33) that partially surrounds the operator. The said seat (31) and the said back support (32) are partially surrounded by a first tube structure (35) divided into a number of sections where the said protecting rail (33) is constituted by an upper section (35c) of tube, with the shape of a "U", with legs (35b, 35c) that diverge from the back support (32) and past the seat (31) with the free end sections (35b', 35c') of the legs each interacting with a short, downwardly pointing section (35d, 35e) of tube and that these sections are located outside of and in the vicinity of the said control lever or levers (40, 41). |
