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A seat pivotably mounted to a seat base via a swivel connector, and a work surface assembly pivotably mounted above the seat base and below the seat via the swivel connector. In particular, a bushing may be attached to an outer surface of the swivel connector in a manner in which the bushing is axia

A seat pivotably mounted to a seat base via a swivel connector, and a work surface assembly pivotably mounted above the seat base and below the seat via the swivel connector. In particular, a bushing may be attached to an outer surface of the swivel connector in a manner in which the bushing is axially fixed, yet rotatable relative to the swivel connector, such as via an arrangement of protrusions and grooves on the bushing and connector, respectively. A portion of the tablet arm is received over the bushing, such that the bushing provides a low-friction interface between work surface assembly and the seat. In this arrangement, the pivot connection between the work surface assembly and the chair is functionally independent of the pivot connection between the seat and seat base. This functional independence facilitates assembly of the work surface assembly to the chair, and allows the pivotable work surface to be retrofit to preexisting swivel chairs.

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1. A chair, comprising: a seat comprising a horizontal support portion and a seat back portion extending upwardly away from the horizontal support portion;a seat base disposed beneath the horizontal support portion of the seat, said seat base having an opening and plurality of legs extending therefr

1. A chair, comprising: a seat comprising a horizontal support portion and a seat back portion extending upwardly away from the horizontal support portion;a seat base disposed beneath the horizontal support portion of the seat, said seat base having an opening and plurality of legs extending therefrom;a swivel connector defining a longitudinal axis extending between an upper connector portion and a lower connector portion, the upper connector portion attached to the horizontal support portion of the seat and the lower connector portion being tapered in shape and received within and extending through the opening of the seat base with the lower connector portion directly engaging the opening of the base via a taper-fit connection, the upper connector portion pivotable with respect to the lower connector portion such that the seat is pivotable with respect to the seat base; anda work surface assembly comprising: an attachment arm having a radial inward end adjacent the swivel connector and extending radially outwardly from the swivel connector;a pivot mounting portion fixed to the radial inward end of the attachment arm, the pivot mounting portion having a bore sized and configured to receive the swivel connector;a riser arm fixed to and extending upwardly from the attachment arm to an upper end of the riser arm; anda work surface connected to the upper end of the riser arm; anda bushing having an outer bushing surface and an inner bushing surface, the outer bushing surface directly abutting an inner surface of the bore of the pivot mounting portion, the inner bushing surface directly abutting an outer surface of the swivel connector, whereby the bushing comprises a single bushing disposed directly between the swivel connector and the pivot mounting portion with lower ends of both the pivot mounting portion and the bushing each disposed within the opening of the seat base. 2. The chair of claim 1, wherein: the pivot mounting portion comprises a recess; andthe bushing comprises a protrusion sized to be received in the recess when the bushing is received in the bore, such that the bushing and the pivot mounting portion are rotatably fixed to one another and the bushing is rotatable with respect to the swivel connector. 3. The chair of claim 1, wherein: the swivel connector includes at least one annular recess in the outer surface; andthe bushing includes at least one annular protrusion sized and configured to be received in the annular recess, such that axial movement of the bushing with respect to the swivel connector is prevented when the bushing is assembled to the swivel connector. 4. The chair of claim 1, wherein the bushing comprises two semi-cylindrical bushing halves joined by at least one retainer ring. 5. A chair, comprising: a seat comprising a horizontal support portion and a seat back portion extending upwardly away from the horizontal support portion;a seat base disposed beneath the horizontal support portion of the seat, said seat base having an opening and plurality of legs extending therefrom;a swivel connector defining a longitudinal axis extending between an upper connector portion and a lower connector portion, the upper connector portion attached to the horizontal support portion of the seat and the lower connector portion being tapered in shape and received within and extending through the opening of the seat base with the lower connector portion directly engaging the opening of the base via a taper-fit connection, the upper connector portion pivotable with respect to the lower connector portion such that the seat is pivotable with respect to the seat base; anda work surface assembly comprising: an attachment arm having a radial inward end adjacent the swivel connector and extending radially outwardly from the swivel connector;a pivot mounting portion fixed to the radial inward end of the attachment arm, the pivot mounting portion having a bore sized and configured to receive the swivel connector;a riser arm fixed to and extending upwardly from the attachment arm to an upper end of the riser arm; anda work surface connected to the upper end of the riser arm; anda bushing having an outer bushing surface and an inner bushing surface, the outer bushing surface abutting an inner surface of the bore of the pivot mounting portion, the inner bushing surface abutting an outer surface of the swivel connector, whereby the hushing comprises a single bushing disposed between the swivel connector and the pivot mounting portion with lower ends of both the pivot mourning portion and bushing each disposed within the opening of the seat base, and wherein: the bushing abuts the outer surface of the swivel connector at the lower connector portion;the pivot mounting portion includes an axial retainer lip at an upper axial end thereof, the axial retainer lip in axial abutment with an upper end of the bushing,the retainer lip sized to prohibit passage of the bushing and the lower connector portion therethrough, andthe retainer lip sized to allow passage of the upper connector portion therethrough. 6. The chair of claim 1, wherein: a lowermost portion of the seat comprises an upper opening extending upwardly into the horizontal support portion of the seat, an upper axial end of the pivot mounting portion received in the upper opening; andan uppermost portion of the seat base includes a lower opening extending downwardly into an upper support of the seat base, a lower axial end of the pivot mounting portion received in the lower opening. 7. The chair of claim 6, wherein: the pivot mounting portion includes a radial protrusion received in the upper opening; andthe upper opening includes a first radial stop positioned to engage the radial protrusion at a first angular configuration of the seat and the work surface, and a second radial stop positioned to engage the radial protrusion at a second angular configuration of the seat and the work surface, the first radial stop and the second radial stop cooperating to define an angular spacing which defines a predetermined range of angular movement of the work surface. 8. The chair of claim 7, wherein the work surface is pivotably connected to the upper end of the riser arm, such that the work surface can be pivoted from a right-hand configuration to a left-hand configuration. 9. The chair of claim 1, further comprising: a seat bushing fixed within the horizontal support portion of the seat and sized to form a first friction-fit connection with the upper connector portion; anda base bushing fixed within an upper support of the seat base and sized to form a second friction-fit connection with the lower connector portion. 10. The chair of claim 9, wherein the first and second friction-fit connections are taper-fit connections, whereby downward pressure on the horizontal support portion of the seat reinforces fixation of the swivel connector to the seat and the seat base respectively. 11. The chair of claim 1, wherein the seat base comprises: an upper support fixed to the lower connector portion; anda plurality of legs extending downwardly from the upper support, such that a cargo space is defined under the upper support. 12. The chair of claim 11, wherein the seat base further comprises a lower support connected to a lower portion of the plurality of legs, such that the cargo space is defined between the lower support and the upper support. 13. The chair of claim 1, wherein the seat comprises a seat shell in which the horizontal support portion and the seat back portion of the seat are formed as a single monolithic part. 14. The chair of claim 13, wherein the single monolithic part forming the seat further includes armrest portions extending upwardly from the horizontal support portion and forwardly from the seat back portion. 15. A method of assembling a chair, the method comprising the steps of: fixing a lower portion of a swivel connector to a seat base including an opening and a plurality of legs extending therefrom by inserting a tapered lower end of the swivel connector through the seat base opening to directly engage the lower end of the swivel connector with the opening via a taper-fit connection;pivotably connecting a work surface assembly to the chair by the steps of: connecting a bushing to an outer surface of the swivel connector; andlowering a pivot mounting portion of the work surface assembly over the bushing such that the bushing abuts the outer surface of the swivel connector, the pivot mounting portion including an axial retainer lip at an upper axial end thereof sized to prohibit passage of the bushing and the lower connector portion therethrough, the axial retainer lip in axial abutment with an upper end of the bushing, and wherein lower ends of both the pivot mounting portion and the bushing are each disposed within the opening in the seat base and an upper portion of the swivel connector protrudes upwardly through the pivot mounting portion; andfixing an upper portion of the swivel connector to a seat. 16. The method of claim 15, wherein the step of connecting the bushing comprises lowering the bushing over a cylindrical surface of the swivel connector until a protrusion formed on one of the bushing and the swivel connector engages a correspondingly sized recess on the other of the bushing and the swivel connector, and the upper portion of the swivel connector protrudes upwardly through the bushing. 17. The method of claim 15, wherein the swivel connector is an existing swivel connector of a chair, the method further comprising choosing the bushing from among a set of bushings to fit the existing swivel connector.