Chairs and seats – Armrest – Attachable to diverse chairs or seats; i.e. – portable
Patent
1989-11-13
1990-12-18
Chen, Jose V.
Chairs and seats
Armrest
Attachable to diverse chairs or seats; i.e., portable
297366, A47C 754
Patent
active
049781715
ABSTRACT:
Disclosed herein is an arm rest device for a vehicle seat. The device comprises a shaft secured to a seatback of the seat; an arm rest proper pivotally connected to the shaft thereby to pivot between first and second angular positions; a generally circular plate concentrically secured to the shaft, the circular plate including a larger diameter sectoral portion and a toothed portion; a blocking plate pivotally disposed about the shaft, the blocking plate including a larger diameter sectoral portion and a radial extension, the radial extension having a flange and a notch; a latch member pivotally connected at its generally middle portion to the arm rest proper, the latch member having at its one end a pawl which is latchingly engageable with the toothed portion of the circular plate and at the other end a pointed portion which is engageable with the flange and notch of the blocking plate; first stopper structure for stopping the arm rest proper at the first and second angular positions; second stopper structure for stopping rotation of the blocking plate relative to the shaft when the blocking plate rotates by a given degree in a given direction to disengage the flange from the pointed portion; and biasing structure for biasing the latch member in a direction to achieve the latching engagement between the pawl and the toothed portion and biasing the blocking plate in the given direction.
REFERENCES:
patent: 773720 (1904-11-01), Drury
patent: 2217352 (1940-10-01), Todd et al.
patent: 4230414 (1980-10-01), Cheshire
patent: 4354710 (1982-10-01), Rauschenberger
patent: 4621864 (1986-11-01), Hill
patent: 4685501 (1987-04-01), Ishigami et al.
Chen José V.
Ikeda Bussan Co. Ltd.
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