Platform positioning system
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United States of America Patent
Stats
-
Jan 8, 1985
Grant Date -
N/A
app pub date -
Apr 11, 1983
filing date -
Apr 11, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A platform positioning system for a drilling device of the type which includes a support structure and a transfer arm pivotally connected to the support structure to rotate about a first axis is disclosed. This platform positioning system includes a platform which is pivotally connected to the support structure to rotate about a second axis, and a rod which is mounted between the transfer arm and the platform. The position of the arm and platform axes and the length of the rod are selected such that the transfer arm automatically and progressively raises the platform to the raised position by means of the rod as the transfer arm moves to the raised position, and the transfer arm automatically and progressively lowers the platform to the lowered position by means of the rod as the transfer arm moves to the lowered position.
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