Rocker-blocking device for rocking chair having projectable/rect

Details Rocker-blocking device for rocking chair having projectable/rect Rocker-blocking device for rocking chair having projectable/rect

1981-10-13

1984-03-20

McCall, James T.

Chairs and seats

Legrest or footrest interconnected to move relative to...

With means to move bottom relative to and concurrently with...

297 68, 297 83, 297 88, 297269, 297270, 297DIG7, A47C 102

Patent

active

044377010

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.

REFERENCES:
patent: 2746519 (1956-05-01), Krikoriah
patent: 2776702 (1957-01-01), Belisle
patent: 2776703 (1957-01-01), Belisle
patent: 2907323 (1959-10-01), Katz
patent: 3163464 (1964-12-01), Martin et al.
patent: 3302969 (1967-02-01), Mizelle
patent: 3339972 (1967-09-01), Fletcher
patent: 3352601 (1967-11-01), Cycowicz
patent: 3747973 (1973-07-01), Re
patent: 3867170 (1975-03-01), James et al.
patent: 3902735 (1974-04-01), Re

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