Portable Adjustable Desk System

Abstract

A collapsible desk system including a first and second elongate members, a seat, a diagonal support member, a column, a pivot assembly, and a desk top is provided. The first and second elongate members have a common central pivot, and are pivotal relative to one another in a scissor-like manner. Each elongate member has a support member for resting on an underlying surface and an end. The seat is attached to the end of the first elongate member. The diagonal support member is cooperable with the first and second elongate members to selectively retain the elongate members in one or more crossed orientations. The column has upper and lower ends. The lower end is pivotally attached to the end of the second elongate member.

What is claimed is: 
     
         1 . A collapsible desk system comprising:
 first and second elongate members having a common central pivot, and being pivotal relative to one another in a scissor-like manner, and each elongate member having a support member for resting on an underlying surface and an end;   a seat attached to the end of the first elongate member;   a diagonal support member cooperable with the first and second elongate members to selectively retain the elongate members in one or more crossed orientations;   a column having upper and lower ends, the lower end pivotally attached to the end of the second elongate member;   a pivot assembly mounted to the upper end of the column, including a main component having a first extension with an arcuate cutout, and including a lock mechanism comprising a pin for extension in to and retraction out of the arcuate cutout; and   a desk top attached to the pivot assembly for rotational transition between a landscape position and an easel position,   wherein the elongate members, the seat, the column, and the desk top are arranged with one another to transition between at least a collapsed configuration and an expanded configuration, and wherein engagement of the lock mechanism retains the pin within the arcuate cutout and disengagement of the pin retracts the pin from within the arcuate cutout so that the desk top may pivot between the collapsed configuration and the expanded configuration.   
     
     
         2 . The desk system of  claim 1 , wherein the arcuate cutout is defined by circular-shaped cutouts open to one another and extending in an arc relative to a center of a circular portion of the first extension. 
     
     
         3 . The desk system of  claim 1 , wherein the lock mechanism further comprises a knob coupled to a transfer assembly, and wherein the transfer assembly is mechanically linked to a first slider and a second slider such that rotation of the knob moves the pin extending from one of the first slider and the second slider in to or out of the arcuate cutout. 
     
     
         4 . The desk system of  claim 1 , wherein the main component further has one or more arc-shaped openings for a fastener to extend therethrough to rotatably secure the main component to the desk top, and wherein the arc-shaped openings are located upon the main component to facilitate rotation of the desk top independent of the main component. 
     
     
         5 . The desk system of  claim 1  further comprising an engagement mechanism having a T-knob, wherein a base portion of the main component defines a first notch and a second notch, and wherein the desk top and the main component are arranged with one another so the desk top is oriented in the landscape position when the T-knob is inserted into the first notch and so the desk top is oriented in the easel position when the T-knob is inserted into the second notch. 
     
     
         6 . The desk system of  claim 1  further comprising a pair of wheel assemblies, wherein each of the pair of wheel assemblies is mounted for rotation to one of the support members of the first and second elongate members. 
     
     
         7 . The desk system of  claim 6 , wherein each of the pair of wheel assemblies includes a base component for securing to one of the support members, an intermediate component including a base portion having flaps, and a wheel mounted to the intermediate component for rotation upon an underlying surface, and wherein each of the flaps includes a lip for gripping an edge of the base component to secure the intermediate component to the base component. 
     
     
         8 . A pivot assembly for a reconfigurable desk comprising:
 a main component including a base portion for securing to an underside of a desk top for rotation of the desk top, a pair of extensions each extending from the base portion and each including a circular portion defining an arcuate channel having circular cutouts open to one another; and   a lock mechanism including a moveable pin for insertion in to and retraction out of the arcuate channel to retain the pivot assembly in at least first and second positions,   wherein the main component and the lock mechanism are arranged with a column assembly of the reconfigurable desk such that retention of the pivot assembly in the first position orients the desk top in a horizontal orientation relative to an underlying surface and retention of the pivot assembly in the second position orients the desk top in a substantially upright orientation relative to the underlying surface.   
     
     
         9 . The pivot assembly of  claim 8 , wherein the base portion of the main component defines first and second notches for receiving a T-knob of an engagement mechanism mounted to the desk top to retain the desk top in one of a landscape position and an easel position. 
     
     
         10 . The pivot assembly of  claim 8 , wherein the lock mechanism further includes a first slider, a second slider, and a spring disposed therebetween, and wherein the moveable pin extends from one of the first slider and the second slider and the spring is biased to push the moveable pin in to the arcuate channel. 
     
     
         11 . The pivot assembly of  claim 10 , wherein the lock mechanism further includes a knob mechanically linked to a transfer assembly, and wherein the transfer assembly is mechanically linked to the first slider and the second slider such that rotation of the knob directs lateral translation of the first slider and the second slider to insert or retract the moveable pin from the arcuate channel. 
     
     
         12 . The pivot assembly of  claim 8 , wherein the desk top defines a top surface, a side surface, and a groove in the side surface extending about at least a portion of a perimeter of the desk top sized to receive one or more fasteners of one or more corresponding components such that the one or more components do not extend over the top surface in at least an upright position. 
     
     
         13 . The pivot assembly of  claim 8 , wherein a base portion of the main component defines one or more arc-shaped openings, wherein each of the one or more arc-shaped openings is sized for a fastener to extend therethrough to rotatably secure the desk top to the main component such that the desk top may rotate independent of the main component. 
     
     
         14 . A reconfigurable desk system comprising:
 a support structure having first and second elongate members for at least partially resting upon an underlying surface;   a column having a first end mounted to one of the first and second elongate members and a second end;   a pivot assembly mounted to the column, cooperable with a desk top to rotate the desk top about an axis normal thereto, and arranged with the desk top to transition the desk top between a substantially horizontal position relative to the underlying surface and a substantially upright position relative to the underlying surface;   a seat assembly mounted to the support structure to position a user proximate the desk top; and   first and second wheel assemblies each mounted to a separate end of one of the first and second elongate members for rotation upon the underlying surface.   
     
     
         15 . The desk system of  claim 14 , wherein each of the first and second wheel assemblies comprises:
 a base component sized for mounting to the separate end of one of the first and second elongate members;   a first intermediate component defining a through-hole sized for receiving a portion of the base component;   a second intermediate component including a base portion for insertion within the through-hole of the first intermediate component and including a first ledge;   a third intermediate component including a second ledge aligned with the first ledge to define a channel therebetween;   a wheel secured to the third intermediate component and sized for disposal within the channel; and   a cap having one or more mounts secured to the second intermediate component such that the third intermediate component and the wheel may rotate freely as a single component about the mounts.   
     
     
         16 . The desk system of  claim 15 , wherein each of the first and second wheel assemblies further comprises one or more rollers each mounted for rotation about one of the one or more mounts and extending from the cap for contact with an inner surface of the third intermediate component such that the third intermediate component freely rotates upon the rollers. 
     
     
         17 . The desk system of  claim 15 , wherein the base portion of the second intermediate component includes flaps each having a lip for gripping an edge of the base component to secure the second intermediate component to the base component. 
     
     
         18 . The desk system of  claim 14 , wherein the desk top defines a top surface, a side surface, and a groove in the side surface extending about at least a portion of a perimeter of the desk top sized to receive one or more fasteners of one or more corresponding components such that the one or more components do not extend over the top surface in at least an upright position. 
     
     
         19 . The desk system of  claim 14 , wherein each of the first and second wheel assemblies is arranged with the first and second elongate members so that the first and second wheel assemblies rotate upon the underlying surface when a user grasps and pulls the desk system by one of the first and second elongate members.