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US 2003/0080595 A1Published application
Chair having a seat with adjustable front edge
AssigneeHaworth, Inc.
InventorsLarry Wilkerson, Gardner Klassen, Mark Tomandl
Life of this patent
Estimating the term…
Abstract
A chair is provided having a seat with a resiliently deflectable shell defining a front portion thereof. The front shell is deflectable downwardly in response to the user. An adjustment mechanism is provided which controls the deflected position of the front shell section to provide for controlled deflection of the seat which adjusts the effected length of the seat while also providing for user responsive deflection of the seat.
Claims20
In a chair comprising:
- a base having a support frame;
- a seat supported on said support frame, said seat comprising a horizontally enlarged chair shell having an upward facing support surface for supporting the seat and thighs of a chair occupant, said shell having a front shell section which extends forwardly from said support frame in cantilevered relation therewith, said support shell defining an effective seat length which extends from a rear portion of the seat to a contact location on said front section wherein said front section separates from the thighs of an occupant;
- and
- an adjustment mechanism having a manually actuatable handle and a connector member connected to said front shell section and operated by said handle wherein said connector member maintains said front shell section in a first position and rotation of said handle deflects said front shell section away from said first position to an adjusted second position which adjusts the contact location between said support shell and the thighs of the occupant to adjust the effective seat length, said connector member being moveable in a downward direction to permit deflection of said front shell section away from said adjusted second position to a user-responsive third position in response to the weight and/or movements of an occupant.
1 more element
A chair comprising:
- a base;
- a seat supported on said base for supporting the seat and thighs of an occupant, said seat comprising a flexible front section which extends forwardly, said front seat section being resiliently flexible so as to generate a resilient restoring force which resists deflection of said front seat section away from an initial position while permitting downward deflection of said front section away from said initial position to a user response position;
- and
- an adjustment mechanism having an actuator and a connector member which is connected to said front section and is movable by said actuator to adjust the deflection of said front seat section, said actuator being manually moveable to effect movement of said connector member to move said front seat section from said initial position to an adjusted position and maintain said front section in said adjusted position while permitting downward movement of said seat section from said adjusted position to said user response position, said restoring force of said front section biasing said front section away from said user response position back to said adjusted position.
1 more element
A chair comprising:
- a base;
- a horizontally enlarged seat shell having a front section extending forwardly of said base and being formed of a resiliently deflectable material;
- and
- an adjustment mechanism having an actuator and a connector member which is connected to said front shell section and is displaceable upwardly and downwardly by movement of said actuator to adjust a deflection of said front seat shell to an adjusted position, said connector member permitting downward deflection of said front seat shell section away from said adjusted position in response to downwardly directed forces applied thereto.
1 more element
Dependencies are inferred from the claim text.