An adjustment device for vertically adjusting a chair headrest is revealed and is installed on a seat back frame while in use. The adjustment device includes a sliding member, a fixing member and a button set. A vertical toothed part of the button set is moved and separated from a first rack of the sliding member when the button set is pressed. Then the sliding member is moved vertically relative to the fixing member for synchronous adjustment of vertical position of the headrest. After the button set being released, the vertical toothed part of the button set is turned back and engaged with the first rack of the sliding member. Thus the sliding member and the headrest are positioned at a new position after the adjustment.
Device for vertically adjusting chair headrest
2018-07-03
Patent
Electronic Resource
English
IPC: | A47C Stühle , CHAIRS / A61G TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS , Transport, persönliche Beförderungsmittel, oder Lagerung besonders ausgebildet für Kranke oder Behinderte / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
European Patent Office | 2020
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