Synchronization Mechanism
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United States of America Patent
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Issued Date -
N/A
app pub date -
Oct 29, 2007
filing date -
Apr 28, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A synchronization mechanism for a correlated movement of a seat and a backrest of an office chair contains a basic support placeable on a chair post, a seat support and a backrest support. To provide a synchronization mechanism for which an adjustment of a spring tension to change the 'tilting resistance' of the backrest is not required, a mechanism is proposed whereby the backrest support that is pivotable around a swivel axis is directly linked in a pivotable manner to the basic support, and to the rear end section of the seat support, such that a backward tilt of the backrest induces a lifting of the rear area of the seat support. The seat support is so linked to the basic support as to cause a lifting of the front area of the seat support when the user of the office chair 'lifts' him/herself up by leaning against the backrest.
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