Seat height adjustment mechanism for a chair

  • US 5,577,804 A
  • Filed: 06/30/1995
  • Issued: 11/26/1996
  • Est. Priority Date: 06/30/1995
  • Status: Expired due to Term
First Claim
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1. A chair for a person, comprising:

  • (a) a seat portion and an arm rest member;

    (b) a support leg, said leg including a fluid pressure cylinder connected to said seat portion, said cylinder having vertically extending telescopic upper and lower sections and a valve release member, said valve release member movable between a closed position in which said upper and lower sections are fixed in position relative to each other and an open position in which said upper and lower sections are moveable relative to each other;

    (c) an actuator operatively connected to said valve release member and movable between a first position, in which said valve release member is in said closed position, and a second position, in which said valve release member is in said open position;

    (d) actuating button means positioned in said arm rest member and movable between a first position and a second position; and

    ,(e) flexible cable means having a first end connected to said button means and a second end operatively connected to said actuatorwhereby, when said button means is moved from said first position to said second position, said valve release member is moved to said open position so that the height of the chair may be adjusted and when said button means is moved from said second position to said first position, said valve release member is moved to said closed position so that the height of the chair is then fixed.

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