Large manipulator, especially for self-propelled concrete pumps, and method for operating it
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United States of America Patent
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Oct 20, 1998
Grant Date -
N/A
app pub date -
Feb 23, 1996
filing date -
Aug 26, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A large manipulator, especially for self-propelled concrete pumps includes a rotary head that rotates about a vertical axis on a mast stand, and a jointed or articulated mast composed of at least three mast arms. The mast arms of the jointed mast can be swivelled to a limited extent about horizontal, mutually parallel axes relative to the adjoining rotary head or mast arm using a corresponding drive unit in each case. The jointed mast is operated by a remote control device which has a signal transmitter situated at the mast top and a control unit. The signal transmitter drives a computerized coordinate field device actuating the drive units according to a displacement path relative to the momentary position of the mast top as directly indicated by means of the control unit.
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