Multi-task mid-pivot chair control mechanism

A method of adjusting the range of pivoting movement of a seat relative to a seat support, wherein a chair control mechanism having a base section and a pivotable seat mounting section is located between the seat and the seat support, wherein the seat mounting section is pivotable about a seat pivot axis relative to the base section, comprising the steps of:

• providing first and second pivot stops, wherein the first pivot stop defines a first height and the second pivot stop defines a second height;
• and
• securing a selected one of the first and second pivot stops between the base section and the pivotable seat mounting section at a location offset from the seat pivot axis, wherein the first and second heights of the first and second pivot stops, respectively, function to control the range of pivoting movement of the seat mounting section relative to the base section.

A seat pivot limiting arrangement for controlling the range of pivoting movement of a seat relative to a seat support, wherein a chair control mechanism having a base section and a pivotable seat mounting section is located between the seat and the seat support, wherein the seat mounting section is pivotable about a seat pivot axis relative to the base section, comprising:

• a pivot stop secured to the base section at a location offset from the seat pivot axis, wherein the pivot stop includes a stop surface and mounting structure enable with the seat mounting section for securing the pivot stop the seat mounting section, wherein engagement of the stop surface with the seat mounting section functions to control the range of pivoting movement of the seat support member relative to the base member, and wherein the stop surface defines a predetermined height, wherein the pivot stop member is selected from two or more pivot stop members, each of which has stop surfaces of differing heights, wherein the selected pivot stop member defines a range of pivoting movement of the seat mounting section relative to the base section different than that of the remaining pivot stop members.