Chairs and seats – Laterally folding or collapsing back – One-piece bottom and back
Patent
1977-04-29
1978-01-17
Frazier, Roy D.
Chairs and seats
Laterally folding or collapsing back
One-piece bottom and back
297367, 297379, A47C 1024
Patent
active
040688909
ABSTRACT:
A seat lock device which comprises a lock unit fixed on each side of a back rest swingable back and forth and at a point spaced from a seat shaft and a plurality of strikers engageable with the lock unit, and wherein the lock unit includes elongate grooves engageable with the strikers and lock grooves; a circular actuating unit provided with elongate grooves engageable with the strikers and lock grooves, held at a free position ready for engagement with the striker when the elongate groove remains disengaged from the striker and rotated when the elongate groove is engaged with the striker; a latch for locking the lock groove by engagement therewith when the circular actuating unit is rotated to a lock position; a gate mechanism for preventing the lock action of the latch when the elongate groove remains disengaged from the striker; and a releasing mechanism for releasing the lock action of the latch, thereby enabling the back rest to be locked in an inclined position corresponding to any of the strikers engaged with any of the elongate grooves.
REFERENCES:
patent: 425778 (1890-04-01), Goetel
patent: 3262725 (1966-07-01), Ballantyne
patent: 3410600 (1968-11-01), Thorpe
patent: 3784252 (1974-01-01), Peterson
Kurozu Toshio
Miyashita Norio
Yamada Shinjiro
Frazier Roy D.
Honda Motor Co. Ltd.
Lyddane William E.
Mitsui Mining & Smelting Co. Ltd.
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