Chairs and seats – Armrest – Adjustable to multiple use positions relative to bottom or back
Reexamination Certificate
2008-02-11
2010-06-29
Brown, Peter R. (Department: 3636)
Chairs and seats
Armrest
Adjustable to multiple use positions relative to bottom or back
Reexamination Certificate
active
07744159
ABSTRACT:
An armrest adjustment mechanism is disclosed. The armrest adjustment mechanism includes a sleeve, a tubular member, a slider, a long plate, a fixing plate, a guiding plate, a retaining block, a lower base, an armrest pad and a lever arm. The armrest adjustment mechanism features on that: an insertion hole is disposed on upper end of the long plate while the lever arm is arranged inside a space between the armrest pad and the lower base. The lever arm inserts through the insertion hole on top end of the long plate so that the long plate hangs on the lever arm, working as a load. One end of the lever arm is arranged on one side of the lower base, working as the fulcrum while the other end of the lever arm is arranged on an opposite side of the lower base correspondingly. A push member projecting from a corresponding opening of the lower base is arranged on the other end of the lever arm, working as the effort. Thus the push member is moved upwards by being pushed by the user from the outside or elastically turned back to the original position so as to make the lever arm (like a Type-2 lever) drives the long plate to move upwards synchronously. Therefore, the adjustment of the armrest height is achieved.
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Brown Peter R.
Isotech Products Incorporated
Muncy Geissler Olds & Lowe, PLLC
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