Lockdown mechanism for an electric drive screw telescoping mast system
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United States of America Patent
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Dec 30, 2014
Issued Date -
N/A
app pub date -
Jan 25, 2011
filing date -
Jan 25, 2011
priority date (Note) -
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Abstract
This disclosure pertains to a lockdown mechanism for an electric drive screw telescoping mast. The lockdown mechanism comprising a plurality of elongated tube sections which are telescopingly attached to each other, each tube section comprising a substantially hollow body. An elongated drive screw is disposed within the hollow body and includes a plurality of threads for extending and retracting the elongated tube sections. A lock subassembly includes a housing and a center hub, the housing comprises a load bearing top and a hollow cavity, the lock subassembly being rigidly attached to said center tube and axially aligned along a central axis with said plurality of elongated tube sections. The center hub is movably engaged within the hollow cavity of the housing and includes at least one locking pin adapted to the center hub that is movably engaged to the structural envelope when the mast is in the lockdown position.
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