Machine element or mechanism – Control lever and linkage systems – Elements
Patent
1980-08-20
1983-02-01
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Elements
297408, 403 93, G05G 524, A47C 738
Patent
active
043708986
ABSTRACT:
A device for fastening a first member such as a head rest relative to a second member such as a head rest supporting member in an inclining adjustable manner, including a one-way ratchet and pawl mechanism incorporated between the two relatively rotatable members, wherein the pawl is driven out of engagement with the ratchets when the two relatively rotatable members have been brought to an extreme relative position allowed by one-way sliding engagement of the ratchets and the pawl, and a control member which catches and holds the driven up pawl at the extreme relative rotational position and releases the pawl when the two relatively rotational members have been brought to the other extreme relative rotational position so as to make the pawl again engage the ratchets at the second mentioned relative rotational position.
REFERENCES:
patent: 773720 (1904-11-01), Drury
patent: 970635 (1910-09-01), Matthes
patent: 2812802 (1957-11-01), Gielow
patent: 2828810 (1958-04-01), Barecki et al.
patent: 3186253 (1965-06-01), Ramillon
Herrmann Allan D.
Toyoto Jidosha Kogyo Kabushiki Kaisha
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