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US 5,671,972 AGranted
Seat back adjustment mechanism for a chair
AssigneeGlobal Upholstery Company
InventorRomeo Tedesco
Life of this patent
Estimating the term…
Abstract
A seating unit comprises support member, a seat member; a back rest member pivotally mounted with respect to the seat member; an arm rest member having an actuating button positioned in the arm rest member, the button being movable between a first position and a second position; a cylinder containing a non-compressible fluid having actuating and operatively connected to the back rest member for adjustment of the inclination thereof; and, a flexible cable having a first end connected to the button and a second end mechanically connected to the actuating member.
Claims29
A chair comprising:
- (i) a longitudinally extending seat member having a central portion and opposed, transversely extending front and rear ends;
- (ii) a wheeled base;
- (iii) a support member extending between said wheeled base and said central portion of said seat member;
- (iv) a chair back member pivotally mounted with respect to said seat member for movement between an upright position and a reclined position;
- (v) an arm rest member having button means positioned in said arm rest member, said button means being movable between a first position and a second position;
- (vi) a cylinder containing a non-compressible fluid transversely offset from said central portion, having mechanical actuating means and operatively connected to said chair back member for adjustment of the inclination thereof;
- and,
- (vii) flexible cable means having a first end connected to said button means and a second end mechanically connected to said actuating means
- whereby, when said button means is moved from said first position to said second position, said actuating means is actuated so that the inclination of the chair back member may be adjusted and when said button means is moved from said second position to said first position, the inclination of the chair back member is fixed.
6 more elements
A chair comprising:
- (i) a seat member, a chair back member and an arm rest member, said chair back member pivotally mounted with respect to said seat portion;
- (ii) said seat member including a cylinder containing a non-compressible fluid having longitudinally extending telescopic first and second sections and a valve release member, said first section connected to said seat member and said second section in pivotal connection with said chair back member, said valve release member movable between a closed position in which said first and second sections are fixed in position relative to each other and an open position in which said first and second sections are moveable relative to each other;
- (iii) an arm member pivotally mounted with respect 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;
- (iv) button means positioned in said arm rest member and movable between a first position and a second position, said arm member having a moment arm of sufficient length to permit said button means to move from said first position to said second position by a force applied through a finger of a user when said user is seated in the chair;
- and,
- (v) flexible cable means having a first end connected to said button means and a second end mechanically connected to said arm member
- whereby, 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 inclination of said chair back member 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 inclination of said chair back member is then fixed.
4 more elements
A chair comprising:
- (i) a seat member and a chair back member;
- (ii) said chair back member mounted on an attachment member, said attachment member pivotally mounted on said seat member whereby said chair back member may be moved between a first position and a second position to thereby adjust the inclination of said chair back member;
- (iii) said seat member including a cylinder containing a non-compressible fluid having longitudinally extending telescopic first and second sections and a valve release member, said first section connected to said seat member and said second section pivotally mounted on said attachment member, said valve release member movable between a closed position in which said first and second sections are fixed in position relative to each other and an open position in which said first and second sections are moveable relative to each other;
- (iv) actuating means operatively connected to said valve release member;
- (v) button means positioned proximate said seat member and movable between a first position and a second position;
- and,
- (vi) flexible cable means having a first end connected to said button means and a second end mechanically connected to said actuating means
- whereby, 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 inclination of said chair back member 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 inclination of said chair back member is then fixed.
5 more elements
Dependencies are inferred from the claim text.