KOPFSTÜTZE FÜR EINEN SITZ

A headrest for a seat of such a structure that only an upper central part of the seat back is tilted forward to be usable as a headrest and the headrest can be automatically returned to the initial position when tilted forward at an angle larger than a predetermined one with respect to the seat back...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	KURANAMI, SHUNJI, KAMAKURA-SHI, KANAGAWA 248, JP
Format:	Patent
Sprache:	ger
Schlagworte:	AIRCRAFT ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSIONTRANSMISSIONS IN AIRCRAFT AVIATION BEDS CHAIRS COFFEE MILLS COSMONAUTICS DOMESTIC ARTICLES OR APPLIANCES EQUIPMENT FOR FITTING IN OR TO AIRCRAFT FLYING SUITS FURNITURE HUMAN NECESSITIES PARACHUTES PERFORMING OPERATIONS SEATS SPECIALLY ADAPTED FOR VEHICLES SOFAS SPICE MILLS SUCTION CLEANERS IN GENERAL TRANSPORTING VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDEDFOR VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A headrest for a seat of such a structure that only an upper central part of the seat back is tilted forward to be usable as a headrest and the headrest can be automatically returned to the initial position when tilted forward at an angle larger than a predetermined one with respect to the seat back. The headrest (7) comes outward from or goes inward to the step-like recess (6) formed on the upper part of the seat back (1) and is swingably supported through a hinge mechanism (8) provided with a ratchet mechanism (14). The hinge mechanism (8) comprises: a movable part (11) to be fixed to the lower part of a support frame (7a) of the headrest (7); a hinge proper (10), which is fixed to the seat back frame (1a), and pivotally fixed with a turning shaft (12); and a return spring (18) provided to the support frame (7a) of said headrest (7). Thus, the headrest (7) is returned to the position for standing upright. The ratchet mechanism (14) is constructed so that a ratchet tooth (15) may disengage from a ratchet pawl (18) when the headrest (7) is tilted forward at an angle larger than a predetermined one. The headrest (7) is returned to the initial position by tension of said return spring (18).