Rocker-blocking device for rocking chair having projectable/rectractable footrest
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United States of America Patent
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Mar 20, 1984
Grant Date -
N/A
app pub date -
Oct 13, 1981
filing date -
Oct 13, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a rocker-blocking mechanism for a platform rocking chair which when activated, typically in conjunction with thrusting of a legrest which lifts the user's feet away from the reassurance of floor contact. The rocker-blocking mechanism includes a forwardly presented, vertically elongated slot mounted in a medially disposed linkage between the chair rocker cam unit and legrest operating mechanism. A rearwardly presented, forward-to-rear tapering wedge element is disposed through the slot, in a linkage between the chair base and the chair rocker cam unit. When the legrest is in a retracted condition, the wedge is so located that there is plenty of space above and below the wedge within the slot to permit free rocking. As the legrest is thrust, the slot is quickly moved relatively forwards along the wedge to a position where the wedge vertically fills the slot, thus blocking rocking. By preference, the upper and lower edges of the slot are provided by rollers made of lubricous plastic material.
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Family
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