Forward tilt assembly for chair seat

A forward tilt mechanism for a chair configured to forwardly tilt a chair seat, the tilt mechanism comprising:

• spaced support brackets positioned on opposing longitudinal sides of a seat plate, each support bracket including a keyhole slot having an upper portion and a lower portion, the seat plate being pivotally mounted to a forward portion of a chair base and configured to support the chair seat;
• and
• a release mechanism comprising:
• a lock pin mounted between the support brackets, the lock pin being laterally slidable;
• and
• two keyed collars, one of the two collars disposed at each end of the lock pin, the collars configured for receipt in respective keyhole slots of the support brackets,
• wherein the seat plate is pivotable between a nominal position and a forward tilted position,
• wherein in the nominal position the collars are disposed within the upper portions of the keyhole slots, and in the forward tilted position the collars are disposed within the lower portions of the keyhole slots such that a rear of the seat plate is lifted upward relative to the chair base and the chair seat is tilted forward.

A forward tilt mechanism configured to upwardly lift a rear of a chair seat, the tilt mechanism comprising:

• two spaced support brackets, each support bracket including a slot having an upper portion and a lower portion;
• and
• a release mechanism comprising:
• a lock pin mounted between the support brackets, the lock pin being laterally slidable;
• a spring and a spring sleeve;
• and
• two collars, one of the two collars disposed at each end of the lock pin, the collars configured for receipt in respective slots of the support brackets,
• the forward tilt mechanism is configured to pivot between a nominal position and a forward tilted position, wherein in the nominal position the collars are disposed within the upper portions of the slots, and in the forward tilted position the collars are disposed within the lower portions of the slots such that a rear of a chair seat is lifted upward.