Patent Publication Number: US-7908805-B2

Title: Partition system

Description:
CROSS REFERENCE TO RELATED APPLICATIONS 
     This application is a division of U.S. patent application Ser. No. 10/797,465, entitled PARTITION SYSTEM, filed Mar. 10, 2004, which is a division of U.S. patent application Ser. No. 10/453,187, entitled PARTITION SYSTEM, filed on Jun. 3, 2003, which claims the benefit under Title 35, U.S.C. §119(e) of U.S. Provisional Patent Application Ser. No. 60/386,775, entitled PARTITION SYSTEM, filed on Jun. 6, 2002, as well as U.S. Provisional Patent Application Ser. No. 60/426,994, entitled PARTITION SYSTEM, filed on Nov. 15, 2002, the disclosures of which are expressly incorporated herein by reference. 
    
    
     BACKGROUND OF THE INVENTION 
     1. Field of the Invention 
     The present invention relates to partition systems of the type used in office spaces, and more particularly, to a movable and reconfigurable office partition system including a framework to which decorative and/or functional tiles are attached for subdividing an office space. 
     2. Description of the Related Art 
     Partition systems, which are used to divide interior office spaces, typically include a plurality of panels, each having a rectangular frame formed from vertical and horizontal frame members rigidly connected to one another. Panel tiles are mounted to the rectangular frames to cover the frames and to subdivide the office space into individual spaces such as work stations, conference rooms, and the like. Typically, the individual panels in the system are connected by attaching the rectangular frames of adjacent panels together along the side edges of the rectangular frames. The panels may be connected in an end-to-end manner to form a partition wall, or may be connected to one another to form L-, T-, or X-type panel-to-panel connections to form junctions between the partition walls. 
     In partition systems having the foregoing construction, the connections along the side edges of the rectangular panel frames are typically the weakest points in the entire partition system. Therefore, in order to provide rigid, durable connections between the panel frames, a plurality of brackets, latches, or other structures are needed, which may be difficult and tedious to install. 
     Additionally, known partition systems typically include decorative tiles for mounting to the panel frames to provide privacy between the individual work space areas within the office space which are formed by the partition system. The decorative tiles are sized to have a width which is co-extensive with the rectangular frames, which disadvantageously limits the locational positioning of the tiles on the frames and does not allow for flexibility in the configuration of the tiles relative to the frames. 
     Modular furniture components, such as work surfaces, cabinets and the like are typically mounted to the panels using specialized brackets or other hardware. Thus, the modular furniture components are disposed in a fixed position relative to the panels and are not easily movable or reconfigurable with respect thereto. In this manner, the decorative and space-dividing functions are performed by the decorative tile, while other functions, such as storage, are provided only by the modular furniture components. 
     Existing partition systems are substantially fixed after their initial installation, and do not permit easy reconfiguration thereof based upon changing space demands in a workspace. Existing systems further do not permit easy expansion, in which additional partition systems components are added to partition system components which are already installed. 
     What is needed is a partition system for office spaces which is an improvement over the foregoing. 
     SUMMARY OF THE INVENTION 
     The present invention provides a partition system for office spaces which generally includes a structure or framework, and a plurality of different types of decorative and/or functional tiles mountable to the framework. The framework includes I- and C-shaped vertical frame members which are adjustably joined by upper and lower horizontal spanners such that the distance between the vertical frame members is adjustable. Also, the framework may include other types of vertical frame members for forming L-, T-, or X-junctions within the partition system framework. Decorative tiles and a variety of functional tiles, are mountable to the framework, including retractable workspace tiles, several types of storage tiles, display tiles, window tiles, and electrical and data services tiles. 
     The horizontal spanners are adjustably mounted between the vertical frame members such that the distance between the vertical frame members may be modified as desired to create framework sections of varying width. The vertical frame members each include one or more upper and lower horizontal sub-frame members which are fixedly attached to the vertical frame members, and may also include one or more horizontal mid-channel members detachably mounted to the vertical frame members. The sub-frame members and mid-channel members support track members which extend horizontally along the partition system framework. The track members provide attachment points for mounting modular furniture components to the framework, and also support decorative and/or functional tiles on the framework. The number of mid-channel members may be varied to in turn vary the number and configuration of track members along the framework, which in turn allows tiles of varying height and/or width to be mounted upon the framework in a desired configuration. 
     The track members are attached to adjacent pairs of upper sub-frame members or to adjacent pairs of mid-channel members in a fastenerless manner, in which the track members are hung over edge portions of the upper sub-frame members and the mid-channel members. Thus, the track members are easily attachable to the framework without the use of fasteners or tools, such that the configuration of track members upon the framework, and in turn, the configuration of the tiles which are supported upon the framework by the track members, may be easily varied to suit the requirements of users of the partition system. Further, the track members each include anti-dislodgement structure cooperating with the upper sub-frame members and the mid-channel members. 
     The track members may extend horizontally along the framework, wherein the length of the track members is not determined by the placement or location of the vertical frame members within the framework. Further, each tile is supported between a pair of vertically spaced track members at any of an essentially infinite number of horizontal positions, regardless of the positioning of the underlying framework structure. In this manner, the placement and location of the tiles is not dependent upon the configuration of the framework which is covered by the tiles. Rather, the placement and location of the tiles is completely independent of the specific configuration of the framework. 
     Further, decorative tiles may be attached to the framework which either cover individual framework sections of the framework, or which span multiple framework sections or portions of adjacent framework sections. In this manner, because the tiles are attached to track members which may be configured differently on each side of the framework and which span one or more framework sections, the location and size of the tiles with respect to the framework need not correlate with the individual framework sections. Thus, for example, relatively large or wide tiles may be attached to the framework which span more than one framework section, and relatively smaller or narrow tiles may be used which span only one framework section or only a portion of a framework section. The track members are independently attachable to each side of the partition system framework, such that the location and placement of tiles on one side of the partition system framework may be configured differently than the location and placement of tiles on the opposite side of the partition system framework. 
     The track members of the partition system framework may be horizontally aligned with identical track members which are mounted to permanent, existing walls in the office space to provide aesthetic and visual continuity between the partition system and the existing walls within an office space. Further, a connection system is provided for connecting an end portion of the framework of the partition system to the track members of the permanent walls within an office space. Alternatively, the partition system may be free-standing within an interior office space, wherein the partition system is not connected to any of the existing, permanent walls of the office space. In a free-standing partition system, the framework of one framework run may be connected at selectively variable locations along the track members of the framework of another framework run, to provide an off-module connection between two runs within the framework of the partition system. 
     Additionally, a variety of decorative and functional tiles are provided for attaching to the partition system framework. The decorative tiles may include any exterior facing such as fabric, vinyl, metal, or a functional surface such as a marker board, chalk board, projection screen or a tack board, for example. Functional tiles may include retractable work station tiles and a variety of different types of storage tiles for storing papers and other materials used within an office environment. The decorative and functional tiles are mounted to the framework without the use of tools, such that the particular arrangement of functional and/or decorative tiles on the partition system framework may be easily reconfigured to suit the particular needs of workers within the office space. Additionally, the storage tiles provide storage space within the interior of the partition system framework, in contrast with existing systems, in which the space within the interior of the partition system framework is occupied by filler material or is not used at all. 
     Also, a file pocket is provided which is sized to hold standard sized paper, or other office supplies. The file pocket is further dimensioned to be received within a standard sized drawer of a filing cabinet. The file pocket may also be received within the storage cavity or retractable storage bin of a storage tile of the partition system. Further, the file pocket includes hooks for mounting the file pocket to a track member of the partition system. In this manner, the file pocket provides a portable storage component which may be conveniently be moved between known casegoods, such as a filing cabinet, and the present partition system. 
     In another form of the present invention, a two-piece adjustable work surface support bracket is provided, which attaches to a track member of the partition system for supporting a work surface. A vertical member of the bracket includes a mounting portion adapted to be received within a track member, and a plate portion extending from the mounting portion which includes a plurality of vertically spaced slots. A horizontal member is attached to a work surface using suitable fasteners, and includes a tab which is received within any one of the vertically spaced slots in the vertical member. In this manner, a work surface may be mounted to a track member of the partition system in a vertically adjustable manner. 
     In a further form of the present invention, a work surface support post is provided which attaches in an adjustable manner to the vertical member of the foregoing work surface support bracket, thereby adjustably mounting the work surface to a track member of the partition system. The support post also engages the floor to support at least a portion of the load of the work surface on the floor, while also providing knee space beneath the work surface for a user seated at the work surface. 
     In one form thereof, the present invention provides a workspace partition system, including a framework including at least two adjacent frame elements, each the frame element including a vertical upright having upper and lower ends; at least one sub-frame member secured to a least one of the upper end and the lower end of each of the vertical uprights and extending horizontally therefrom; and at least one horizontal spanner adjustably connected at opposite ends thereof to adjacent sub-frame members of the adjacent frame elements, whereby the distance between the vertical uprights of the adjacent frame elements may be varied. 
     In another form thereof, the present invention provides a partition system, including a framework including a plurality of vertical frame elements, the vertical frame elements connected by a plurality of horizontal frame elements; at least two horizontal track members connected to the framework, the track members vertically spaced from one another and including tile-retaining structure; and at least one tile retained between the track members and disposed facewise adjacent the framework, the tile selectively locatable at any one of a plurality of horizontally spaced locations along the track members irrespective of the positioning of the frame elements. 
     In a further form thereof, the present invention provides a partition system, including a framework, including: at least three frame elements disposed in a row, each frame element including a vertical upright to which is secured at least one sub-frame member which extends horizontally therefrom; and horizontal spanners connecting adjacent sub-frame members of adjacent frame elements to form a pair of adjacent framework sections which share one of the frame elements as a common frame element therebetween; and at least one tile mounted to the framework, the tile covering at least a portion of each of the framework sections. 
     In a further form thereof, the present invention provides, in combination, a permanent wall including at least one track member mounted thereon, the track member disposed horizontally and defining a channel which opens outwardly of the permanent wall; and a partition system framework having at least one track member mounted thereon, the track member disposed horizontally and defining a channel which opens outwardly of the framework, the framework attached to at least one track member on the permanent wall, and at least one track member on the permanent wall and at least one track member on the framework horizontally aligned with one another. 
     In a further form thereof, the present invention provides, in combination, a lower framework, including a plurality of lower frame elements, each lower frame element including a vertical upright to which is attached at least one horizontal sub-frame member; and a horizontal spanner connecting the sub-frame members of adjacent lower frame elements; and an upper framework attached to and disposed above the lower framework, including a plurality of upper frame elements, each upper frame element including a vertical upright to which at least one horizontal sub-frame member is attached, the uprights of the upper frame elements attached to and vertically aligned with the uprights of the lower frame elements; and a horizontal spanner connecting the sub-frame members of adjacent upper frame elements. 
     In a further form thereof, the present invention provides a partition system, including a framework including vertical frame elements and horizontal frame elements, the horizontal frame elements having longitudinally extending edge portions; and at least one horizontal track member attached to a respective edge portion of at least one of the horizontal frame elements. 
     In a further form thereof, the present invention provides, in combination, a partition system, including a framework having a partition system component mounted thereon, the partition system component having receiving structure; and a portable storage compartment dimensioned for receipt within a drawer of a filing cabinet, the storage compartment having a body portion and attachment structure, the attachment structure attached to the receiving structure to attach the storage compartment to the partition system. 
     In a further form thereof, the present invention provides, in combination, a partition system including a horizontal track member defining an outwardly facing channel; and a work surface support bracket, including a first portion mountable within the channel, and a second portion attached to a work surface, the second portion adjustably attached to the first portion whereby the work surface is supported on the partition system. 
     In a further form thereof, the present invention provides, in combination, a partition system supported on a floor surface, the partition system including a horizontal track member defining an outwardly facing channel; and a work surface support post engaging the floor and including a first portion mountable within the channel, and a second portion attached to a work surface, the second portion adjustably attached to the first portion whereby the work surface is supported by the partition system and by the floor. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
       The above-mentioned and other features and advantages of this invention, and the manner of attaining them, will become more apparent and the invention itself will be better understood by reference to the following description of an embodiment of the invention taken in conjunction with the accompanying drawings, wherein: 
         FIG. 1  is a perspective view of an exemplary partition system according to the present invention; 
         FIG. 2  is an exploded view of a single framework section of a partition system according to the present invention; 
         FIG. 3   a  is a perspective view of a first exemplary framework of a partition system according to the present invention; 
         FIG. 3   b  is a perspective view of a second exemplary framework of a partition system according to the present invention; 
         FIG. 4   a  is a perspective view of an I-shaped vertical frame member including a plurality of mid-channel members mounted thereto; 
         FIG. 4   b  is a perspective view of a C-shaped vertical frame member including a pair of mid-channel members mounted thereto; 
         FIG. 4   c  is a perspective view of an L-junction vertical frame member including a plurality of mid-channel members mounted thereto; 
         FIG. 4   d  is a perspective view showing a manner in which upper and lower sub-frame members may be selectively attached to an upright to form various types of vertical frame members; 
         FIG. 5   a  is a perspective view of a stacking arrangement for the partition system framework; 
         FIG. 5   b  is an exploded view of the stacking arrangement of  FIG. 5   b;    
         FIG. 5   c  is another perspective view of a stacking arrangement for the partition system framework, further showing L-junction, T-junction, and X-junction stacking frame members; 
         FIG. 5   d  is an elevational view showing a number of vertical frame members of varying height, and also showing vertical frame members to which stacking vertical frame members are attached to increase the height of same; 
         FIG. 6   a  is an end view of an upper sub-frame member; 
         FIG. 6   b  is an end view of a lower sub-frame member; 
         FIG. 7  is a partial perspective view showing a spanner connecting the upper sub-frame members of two adjacent vertical frame members within the partition system framework; 
         FIG. 8  is a partial perspective view of the upper portion of an L-junction vertical frame member, showing a pair of spanners connected to the upper sub-frame members thereof; 
         FIG. 9  is a partial perspective view of a portion of a vertical frame member, showing the attachment of a pair of mid-channel members thereto; 
         FIG. 10  is an exploded view showing a lower portion of an L-junction within the partition system framework, and a plurality of harness brackets; 
         FIG. 11  is a perspective view of the assembly of  FIG. 10 ; 
         FIG. 12  is a partial perspective view of the lower portion of a partition system framework, showing an electrical harness assembly connected to the framework; 
         FIG. 13   a  is a sectional view through a portion of a partition system framework at a mid-height location, showing a mid-channel member, a track member, and portions of upper and lower decorative tiles attached to the track member; 
         FIG. 13   b  is a perspective view illustrating the manner in which tiles are attached to the framework of the partition system; 
         FIG. 14  is a sectional view through an upper portion of a partition system framework, showing a pair of track members attached to an upper sub-frame member of a vertical frame member, the track members and a mid-channel member supporting a pair of tiles on opposite faces of the framework, and a top cap mounted to the track members; 
         FIG. 15  is an end view of a top cap; 
         FIG. 16   a  is an exploded view of a portion of a partition system framework, showing five track members disposed at horizontal intervals along one side of the framework, with a plurality of smaller tiles mounted to one side of the framework and a single large tile mounted to an opposite side of the framework; 
         FIG. 16   b  is a perspective view of a portion of a partition system framework, showing a tile mounted to one side of the framework between a pair of vertically spaced track members, the tile selectively locatable at any one of a plurality of horizontally spaced locations along the track members irrespective of the positioning of the framework; 
         FIG. 17  is a portion of a partition system including a window tile mounted within the partition system framework; 
         FIG. 18  is a sectional view taken along line  18 - 18  of  FIG. 17 ; 
         FIG. 19  is a perspective view of a lower portion of a partition system framework, showing the attachment of a floor trim element thereto; 
         FIG. 20  is a sectional view taken along line  20 - 20  of  FIG. 19 ; 
         FIG. 21   a  is a perspective view showing the attachment of the partition system framework to a permanent, existing wall within an office space; 
         FIG. 21   b  is a perspective view showing the attachment of two intersecting runs of framework to one another in an off-module configuration; 
         FIG. 22  is an enlarged view of a portion of  FIG. 21   a;    
         FIG. 23  is a perspective, exploded view showing the manner in which a framework run may be added to an installed section of the partition system; 
         FIG. 24   a  is a perspective view of a corner block of a partition system framework according to a second embodiment; 
         FIG. 24   b  is a horizontal sectional view through the center of the corner block of  FIG. 24   a , further showing an upright of a vertical frame member attached thereto; 
         FIG. 25  is a perspective view of a swivel bracket for use in either L-, T-, or X-junctions within the partition system framework of a second embodiment; 
         FIG. 26  is a perspective view of a first retractable work surface tile, showing the work surface frame thereof in a retracted or storage position; 
         FIG. 27  is a perspective view of the retractable work surface tile of  FIG. 26 , showing the work surface frame in an extended or use position; 
         FIG. 28  is a perspective view of the retractable work surface tile of  FIG. 27 , further showing the work surface slidably extended from the work surface frame; 
         FIG. 29  is a perspective view of a second retractable work surface tile, showing the upper and lower work surface frames thereof in a retracted or storage position; 
         FIG. 30  is a perspective view of the retractable work surface tile of  FIG. 29 , showing the lower work surface frame thereof in an extended or use position; 
         FIG. 31  is a perspective view of a the retractable work surface tile of  FIG. 29 , showing both the upper and lower work surface frames thereof in an extended or use position; 
         FIG. 32  is a perspective view of the retractable work surface tile of  FIG. 29 , showing both the upper and lower work surface frames in extended or use positions, and further showing the lower work surface slidably extended from the lower work surface frame; 
         FIG. 33  is a perspective view of the retractable work surface tile of  FIG. 29 , showing the center panel thereof pivoted to an open position; 
         FIG. 34  is a perspective view of a storage tile; 
         FIG. 35  is a perspective view of a horizontal file pocket; 
         FIG. 36 , is a perspective view of a vertical file pocket; 
         FIG. 37  is an end view of the storage tile of  FIG. 34 , showing a horizontal file pocket mounted therein; 
         FIG. 38  is a perspective view of the storage tile of  FIG. 34 , showing a plurality of horizontal file pockets mounted therein; 
         FIG. 39  is a perspective view of the storage tile of  FIG. 34 , showing a plurality of vertical file pockets mounted therein; 
         FIG. 40  is a perspective view of an alternative file pocket; 
         FIG. 41  is a perspective view of a file cabinet, showing insertion of the file pocket of  FIG. 40  thereinto; 
         FIG. 42  is a perspective view of a portion of a partition system, illustrating various modes of attachment of file pockets thereto; 
         FIG. 43   a  is a perspective view of a storage tile, showing a pair of retractable storage bins pivotally mounted therein; 
         FIG. 43   b  is a perspective view of the storage tile and storage bins of  FIG. 43   a , showing one of the storage bins in an open position, and a file pocket received within the storage bin; 
         FIG. 43   c  is a perspective view of a storage tile having a net enclosure; 
         FIG. 43   d  is a perspective view of a storage tile, including a compact disk holder and a pair of paper files; 
         FIG. 43   e  is a perspective view of a storage tile including a pair of paper files, one of the paper files shown in an open position; 
         FIG. 44  is a perspective view of a media tile; 
         FIG. 45   a  is a front perspective view of an electrical tile; 
         FIG. 45   b  is a perspective view of an outlet module trim element; 
         FIG. 45   c  is a rear perspective view of the electrical tile of  FIG. 46 ; 
         FIG. 45   d  is a rear perspective view of a portion of  FIG. 48 ; 
         FIG. 46   a  is perspective view of a two-piece work surface support bracket, including a vertical member and a horizontal member; 
         FIG. 46   b  is a sectional view through a portion of the partition system, showing the work surface support bracket of  FIG. 46   a  mounted within a track member of the partition system to adjustably support a work surface; 
         FIG. 47   a  is a perspective view of a work surface support post, including a cantilever portion and a support portion; and 
         FIG. 47   b  is a sectional view through a portion of the partition system, showing the work surface support post of  FIG. 47   a  mounted within a track member of the partition system to adjustably support a work surface. 
     
    
    
     Corresponding reference characters indicate corresponding parts throughout the several views. The exemplifications set out herein illustrate preferred embodiments of the invention, and such exemplifications are not to be construed as limiting the scope of the invention any manner. 
     DETAILED DESCRIPTION 
     Referring to  FIG. 1 , partition system  50  is shown, of the type generally used in office spaces for dividing an interior office space into separate workspaces, such as work stations, conference rooms, reception rooms, and common areas, for example. Partition system  50  generally includes a framework or structure  52  (a portion of which is visible in  FIG. 1 ), to which decorative and/or functional tiles are mounted for dividing the interior office space and providing privacy between the individual spaces therein. The tiles attached to framework  52  may include decorative tiles  54  or functional tiles, such as retractable workspace tiles  56  and/or a variety of different types of storage tiles  58 , for example, which are described below. Additionally, framework  52  may include window tiles, as described below. As shown in  FIG. 1 , partition system  50  is free-standing upon the floor surface of an office space and is not connected to the permanent walls of the building in which the office space is disposed. However, as described below, partition system  50  may optionally be connected to permanent walls of a building in which partition system  50  is disposed. 
     Referring to  FIG. 3   a , a first exemplary configuration of framework  52  of partition system  50  is shown, which generally defines an enclosed workspace  60  with opening  62  for allowing passage into and out of workspace  60 . Framework  52  generally includes I-shaped vertical frame members  64 , C-shaped vertical frame members  66 , and L-junction vertical frame members  68 . Each of the foregoing vertical frame members  64 ,  66 ,  68  are connected to one another by upper and lower horizontal spanners  70  to define individual rectangular-shaped framework sections  72 . However, as shown in  FIG. 3   a , because each framework section  72  includes at least one vertical frame member  64 ,  66 ,  68  which is common to an adjacent framework section  72 , framework  52  is a progressive-type framework which does not include individual, rectangular frames which are connected along the edges thereof to adjacent rectangular frames, as in known partition systems. In this manner, the present partition system  50  does not require brackets, latches, or other structure to connect the adjacent vertical edges of individual panel frames, as in known partition systems, thereby increasing the structural integrity of framework  52 , reducing the number of overall components of partition system  50 , and reducing the difficulty of assembly of partition system  50 . Thus, although the term “framework section” is used herein as a reference to the space which is bounded between two adjacent vertical frame members, framework  52  of partition system  50  does not include individual panel “frames” as in known partition systems. 
     Each of the I-shaped, C-shaped, and L-junction vertical frame members  64 ,  66 ,  68 , include at least one horizontal upper sub-frame member  74  and at least one horizontal lower sub-frame member  76  rigidly connected thereto, such as by suitable fasteners or by welding, for example. As may be seen in  FIG. 4   a , for example, upper sub-frame members  74  define upwardly-opening channels  78  and lower sub-frame members  76  define downwardly-opening channels  80 . Referring back to  FIG. 3   a , spanners  70  are received within the channels  78 ,  80  of horizontally adjacent upper and lower sub-frame members  74 ,  76 , respectively, to join adjacent vertical frame members  64 ,  66 ,  68  together to form framework sections  72 . As discussed in more detail below, spanners  70  are adjustably connected to vertical frame members  64 ,  66 ,  68  such that the distance between adjacent vertical frame members  64 ,  66 ,  68  to in turn vary the width of each framework section defined between adjacent vertical frame members  64 ,  66 , and  68 . For example, referring to  FIG. 3   a , framework includes short width framework sections  72   a , medium width framework sections  72   b , and extended width framework sections  72   c , for example. 
     Referring to  FIG. 4   a , I-shaped vertical frame member  64  is shown, which generally includes upright  82  to which are rigidly connected a pair of upper sub-frame members  74  and a pair of lower sub-frame members  76 . Upper sub-frame members  74  and lower sub-frame members  76  are respectively disposed 180° from one another on I-shaped vertical frame member  64 . The lower portion of upright  82  includes a known level glide assembly with foot  84  mounted upon a threaded member and resting against a floor surface, wherein the distance between foot  84  and the bottom edge of upright  82  is vertically adjustable by rotating foot  84 , such that framework  52  may be leveled along an uneven floor surface. The lower portion of upright  82  additionally includes a pair of C-shaped floor trim mounts  86  rigidly secured thereto. Upright  82  includes a plurality of vertical slots  88 , located at vertical intervals along upright  82 , to which mid-channel members  90  may be attached, as described below. 
     Referring to  FIGS. 4   a  and  6   a , upper sub-frame members  74  have a substantially upwardly directed C-shaped cross section, including base wall  92  and a pair of side walls  94  extending upwardly from base wall  92  which, together with base wall  92 , define channel  78 . A pair of track member mounting walls  96  are spaced laterally from, and extend upwardly from, side walls  94 . As shown in  FIG. 4   a , side walls  94  include three or more sets of horizontally aligned apertures  98   a ,  98   b ,  98   c  therein for attachment of spanners  70 , as described below. Referring to  FIGS. 4   a  and  6   b , lower sub-frame members  76  also have a generally downwardly directed C-shaped cross section, including base wall  100  and a pair of side walls  102  extending downwardly from base wall  100  which, together with base wall  100 , define channel  80 . Horizontal walls  104  extending horizontally from the lower ends of side walls  102 , and terminate in upwardly-projecting ridges  106 . As shown in  FIG. 4   a , side walls  102  of lower sub-frame members  76  additionally include three or more sets of horizontally aligned apertures  98   a ,  98   b ,  98   c  for attachment of spanners  70 , as described below. 
     Referring to  FIG. 4   b , C-shaped vertical frame member  66  is shown, including a single upper sub-frame member  74  and a single lower sub-frame member  76 . C-shaped vertical frame members  66  are generally used at the ends of a run of framework  52 , as shown in  FIG. 3   a , or may also be used in an off-module connection between intersecting runs of framework  52 , as described below. Further, as also described below, C-shaped vertical frame members  52  may also be used in a wall start configuration in which framework  52  extends from a permanent wall. Referring to  FIG. 4   c , L-junction vertical frame member  68  is shown, including two upper sub-frame members  74  attached thereto and disposed 90° from one another, and two lower sub-frame members attached thereto and also disposed 90° from one another. In this manner, L-junction vertical frame member  68  forms an L-junction within framework  52 . 
     Additionally, referring to a second exemplary framework  52  shown in  FIG. 3   b , framework  52  may also include T-junction vertical frame members  65  and X-junction vertical frame members  67  for forming T-junctions or X-junctions within framework  52 . T-junction and X-junction vertical frame members  65 ,  67  are analogous to L-junction vertical frame members  68 . For example, T-junction vertical frame member  65  includes three vertical sub-frame members  74  affixed thereto, with corresponding lower sub-frame members  76 . Similarly, X-junction vertical frame member  67  includes four upper sub-frame members  74  attached thereto, with corresponding lower sub-frame members  76 . 
     In many of the Figures herein, upper and lower sub-frame members  74 ,  76  are shown rigidly and permanently attached to uprights  82  of vertical frame members  64 - 68  such as by welding, for example. However, upper and lower sub-frame members  74 ,  76  may also be detachably connected to uprights  82  of vertical frame members  64 - 68  by suitable fasteners. Referring to  FIG. 4   d , upright  82  may include brackets  69  mounted to each side face thereof at 90° intervals around the both of the upper and lower ends of upright  82 . Suitable two-part fasteners  71 , for example, extend through aligned apertures  73  in brackets  69  and apertures  75  in upper and lower sub-frame members  74 ,  76  to rigidly connect upper and lower sub-frame members  74 ,  76  to upright  82 . In this manner, each upright  82  may be selectively configured as any one of the various types of I-shaped, T-junction, C-shaped, X-junction, or L-junction vertical frame members  64 - 68  described above by attaching suitable upper and lower sub-frame members  74 ,  76  thereto. For example, in  FIG. 4   d , upright  82  is configured as an I-shaped vertical frame member  64 . 
     Referring to  FIG. 7 , spanner  70  is shown disposed within channels  78  of horizontally aligned upper sub-frame members  74  of a pair of adjacent vertical frame members  64  and  68 . Spanners  70  generally have a square cross-section, and include a plurality of horizontally spaced through holes  108  at opposite ends thereof which are alignable with any pair of the horizontally aligned sets of apertures  98   a ,  98   b ,  98   c  in upper sub-frame members  74 . Fasteners, which may include bolt  110  and lug  112 , are inserted through a first aperture  98   a ,  98   b , or  98   c  in upper sub-frame member  74 , through the through holes  108  in spanner  70  and through the corresponding horizontally aligned aperture  98   a ,  98   b , or  98   c  in the upper sub-frame member  74  to connect spanner  70  to supper sub-frame member  74 . In  FIG. 8 , the upper portion of an L-junction vertical frame member  68  is shown, having a spanner  70  received within each of the upper sub-frame members  76  thereof. 
     As shown in  FIG. 7 , the ends of spanners  70  are connected to first set of apertures  98   a  to define an extended framework section  72   c  between vertical frame members  64  and  68 . However, as may be seen from  FIG. 7  and from  FIGS. 3   a  and  3   b , spanners  70  may also be connected to second or third sets of apertures  98   b  or  98   c  to define narrow or medium width framework sections  72   a ,  72   b  between vertical frame members  64 ,  66 , and  68 . In this manner, spanners  70  are adjustably connected to vertical frame members  64 ,  66 , and  68  such that the width between vertical frame members  64 ,  66 , and  68  is variable. Further, the length of spanners  70  themselves may also be varied. Therefore, the length of spanners  70 , together with the adjustability provided by through holes  108  in spanners and apertures  98   a ,  98   b , and  98   c  of upper and lower sub-frame members  74  and  76 , allow selection of any distance between adjacent vertical frame members  64 ,  66 , or  68  to create framework sections  72  of any width. For example, a spanner of a first length may be selectively attached to apertures  98   a ,  98   b , or  98   c  resulting in framework sections 24 inches, 30 inches, or 36 inches wide, respectively, or a spanner of a second length may be selectively attached to apertures  98   a ,  98   b , or  98   c  resulting in framework sections 36 inches, 42 inches, or 48 inches wide, respectively. Spanners  70  are connected to apertures  98   a ,  98   b , and  98   c  of lower sub-frame members  76  of adjacent vertical frame members  64 ,  66 , and  68  in the same manner as that described above. 
     Referring to  FIG. 9 , mid-channel members  90  generally have an I-shaped cross section, and are formed by a pair of bent metal pieces attached to one another in a back-to-back manner. Mid-channel members  90  include track member mounting walls  114 , and a mounting structure at one end thereof which includes hooks  116 , upper spacers  118 , and lower spacers  120 . Mid-channel members  90  are attached to uprights  82  of vertical frame members  64 ,  66 , or  68  by first tilting mid-channel members  90  upwardly to insert hooks  116  of mid-channel members  90  into slots  86  of uprights  82 , followed by rotating mid-channel members  90  downwardly to a horizontal position such that upper spacers  118  and lower spacers  120  abut the faces of uprights  82  adjacent slots  86 . Mid-channel members  90  may be removed by the opposite of the foregoing procedure. In this manner, mid-channel members  90  may be firmly and rigidly, yet detachably, mounted to uprights  82  of vertical frame members  64 ,  66 , and  68  at vertical intervals thereon defined by the locations of slots  86 . 
     Referring to  FIGS. 5   a - 5   c , framework  52  may include a stacking system in order to vary the height of framework  52  at selected locations therein. As shown in  FIGS. 5   a  and  5   b , stacking frame members  400  each include vertical component  402  and at least one horizontal component  404  attached to vertical component  402  and extending therefrom. In this manner, stacking frame members  400  may each have an L-shaped profile as shown in  FIGS. 5   a  and  5   b , when stacking frame members  400  are used along a run of framework  52 . Further, as shown in  FIG. 5   c  each vertical component  402  may also include two, three or four horizontal components  404  mounted thereto to form I-shaped stacking members or L-junction stacking frame members  401 , T-junction stacking frame members  403 , and X-junction stacking frame members  405 . In this manner, stacking frame members  400  may be used at L-type, T-type, or X-type panel junctions within framework  52 , as described above. The length of vertical components  402  may be varied in order to vary the height of stacking frame members  400 . 
     Horizontal components  404  are analogous or identical to upper sub-frame members  74  in construction, and are fixedly attached to vertical components by welding, for example. Also, horizontal components  404  may be attached to vertical components  402  in the manner described above with respect to  FIG. 4   d , in which vertical components  402  include brackets  69  for selective mounting of one or more horizontal components  404  to vertical components  402 . Thus, vertical components  402  are analogous to vertical uprights  82  of vertical frame members  64 ,  66 , and  68  in construction; however, as shown in  FIG. 5   b , vertical components  402  each additionally include an extension  406  extending from the lower portion thereof, wherein extensions  406  may additionally include supports  408 . Extensions  406  of vertical components  402  are slidably received within cavities  410  defined in the upper ends of vertical frame members  64 ,  66 , and  68  to vertically attach stacking frame members  400  to vertical frame members  64 ,  66 , and  68 . 
     Referring to  FIG. 5   b , when only one vertical component  402  of a stacking frame member  400  is attached to a given vertical frame member  64 ,  66  or  68 , such as at the end of a run of framework  52 , supports  408  function to take up the space within cavities  410  of vertical frame members  64 ,  66 , and  68  which is not occupied by extensions  410 , to thereby provide a stable vertical connection between stacking frame members  400  and vertical frame members  64 ,  66 , and  68 . As also shown in  FIG. 5   b , when two vertical components  402  of stacking frame members  400  are attached in a back-to-back manner to a single vertical frame member  64 ,  66 , or  68 , such as in the middle of a run of framework  52 , extensions  406  thereof together occupy the space within cavity  410  thereof to provide a stable vertical connection, and supports  408  are not used. As shown in  FIGS. 5   a - 5   c , two vertical components  402  of stacking frame members  400  of different height may also attached in a back-to-back manner to a single vertical frame member  64 ,  66 , or  68  in order to vary the height of stacking frame members  400  within a panel run, forming a “high-low” condition. Further, spanners  70  may be attached between adjacent horizontal components  404  in the same manner as described above with respect to the attachment of spanners  70  to upper sub-frame members  74  of vertical frame members  64 ,  66 , and  68 . 
     As shown in  FIGS. 5   a  and  5   b , track members  146  may be attached to horizontal components  404  of stacking frame members  400  in the same manner as described below with respect to the attachment of track members  146  to upper sub-frame members  74  of vertical frame members  64 ,  66 , and  68 . In this manner, stacking frame members  400 ,  401 ,  403 , and  405  may support the various components of partition system  50 , such as decorative tiles  54  and storage tiles  58 , for example, as discussed below. Further, stacking frame members  400 ,  401 ,  403 , and  405  may also support window tiles  380  in the same manner as described below to provide clerestory windows within the upper spaces of partition system  50 . 
       FIG. 5   d  illustrates how the height of framework  52  may be varied by using vertical frame members  64 - 68  of varying height, together with the use of stacking frame members  400  of varying height. For example, C-shaped vertical frame member  66   a  of  FIG. 5   d  is 30″ high, and includes an upper sub-frame member  74  disposed 30″ from floor surface F, which corresponds to work surface height. C-shaped vertical frame member  66   b  of  FIG. 5   d  is 42″ high, and includes a mid-channel member  90  disposed 30″ from floor surface F and an upper sub-frame member  74  disposed 42″ from floor surface F. C-shaped vertical frame member  66   c  of  FIG. 5   d  is 55″ high, and includes a mid-channel member  90  disposed 30″ from floor surface F and an upper sub-frame member  74  disposed 55″ from floor surface F. C-shaped vertical frame member  66   d  of  FIG. 5   d  is 68″ high, and includes a first mid-channel member  90  disposed 30″ from floor surface F, a second mid-channel member  90  disposed 55″ from floor surface F, and an upper sub-frame member  74  disposed 68″ from floor surface F. C-shaped vertical frame member  66   e  of  FIG. 5   d  is identical to C-shaped vertical frame member  66   d , and further includes a 12″ stacking frame member  400  attached thereto to provide a total height of 80″ from floor surface F. C-shaped vertical frame member  66   f  of  FIG. 5   d  is identical to C-shaped vertical frame members  66   d  and  66   e , and further includes a 25″ stacking frame member  400  attached thereto to provide a total height of 93″ from floor surface F. However, the foregoing dimensions are only exemplary—the height of vertical frame members  64 - 68  and stacking frame members  400  may be varied as necessary to fit the needs of any interior space. 
     Referring to  FIGS. 10-12 , the attachment of harness assemblies  122  to framework  52 , for providing electrical and/or data service throughout framework  52  of partition system  50 , will be described. Referring to  FIG. 10 , harness brackets  124  generally include vertical portions  126 , a pair of oppositely-directed mounting tangs  128 , and a pair of lower, oppositely-directed floor trim mounts  130 . To attach harness brackets  124  to lower sub-frame members  76 , harness brackets  124  are first oriented such that mounting tangs  128  and floor trim mounts  130  are directed parallel to lower sub-frame members  76  and spanners  70 . Thereafter, harness brackets  124  are moved upwardly to align mounting tangs  128  with mounting slots  132  in lower sub-frame members  76 . Then, harness brackets  124  are rotated 90° to engage mounting tangs  128  within mounting slots  132  of lower sub-frame members  76 , as shown in  FIG. 11 . 
     Referring to  FIG. 12 , harness assemblies  122  may be mounted to either side of vertical portions  126  of harness brackets  124  by suitable fasteners. Suitable harness assemblies  122  are available from suppliers such as Pent Manufacturing/Dekko Engineering of Kendallville, Ind., although other suitable harness assemblies are also readily available. Harness assemblies  122  generally include central portions  134  which contain electrical and/or data wiring, outlet modules  136  attached to central portions  134 , and connection ports  138  for attaching jumpers (not shown) to harness assemblies  122 . The jumpers are used to connect adjacent harness assemblies  122  between adjacent framework sections  72  within framework  52 , wherein jumpers may be appropriately sized to span the distance between adjacent framework sections  72 . Referring to FIGS.  7  and  10 - 12 , spanners  70  include central, rectangular-shaped openings  140  to allow electrical wiring, data cables, or other utilities to pass therethrough for routing same vertically within framework  52  of partition system  50 . In this manner, electrical and/or data services may be provided to electrical and data tiles  340 , described below, at selected mid-height locations within framework  52 . Referring to  FIG. 14 , electrical wiring and data cables may also be routed horizontally within channels  78  of upper sub-frame members  74  along the top edges of framework  52 . Referring back to  FIG. 12 , floor trim elements  142  are attachable to framework  52  as described below, and include openings  144  for access to outlet modules  136  of harness assemblies  122 . 
     Referring to  FIG. 13   a , a track member  146  is shown mounted to a mid-channel member  90 . Track member  146  is similar to those which are described in detail in U.S. Pat. No. 5,309,686, assigned to the assignee of the present application, the disclosure of which is expressly incorporated herein by reference. Track members  146  generally include an extruded metal section having a horizontally-opening channel  147  defined by rear wall  148  and upper and lower walls  150 ,  152 . Upper wall  150  terminates in upper front wall  154  and upper rear wall  156 , and lower wall  152  terminates in lower front wall  158  and lower rear wall  160 . Upper front wall  154 , bottom wall  150 , and upper rear wall  156  define tile space  162  therebetween for receipt of the lower edge of a tile, such as decorative tile  54  or a functional tile, and lower front wall  158 , bottom wall  152 , and lower rear wall  160  define tile space  164  therebetween for receipt of the upper edge of a tile. Track member  146  is mounted to mid-channel member  90  in a fastenerless manner with out the need for tools by engaging upper rear wall  160  of track member  146  over track member mounting wall  114  of mid-channel member  90  such that spacing projections  166  of rear wall  148  of track member  146  abut track member mounting wall  114  of mid-channel member  90 . Referring to  FIGS. 6   a  and  14 , track members  146  may be mounted to track member mounting walls  96  of upper sub-frame members  74  in a similar manner. Referring back to  FIG. 13   a , lower rear wall  160  of track members  146  additionally include anti-dislodgment protrusion  168  which prevents dislodgment of track member  146  from mid-channel member  90  (or upper sub-frame member  74 ) when track member  146  is moved vertically with respect thereto. 
     Referring together to  FIGS. 13   a  and  13   b , tiles, such as decorative tiles  54 , are attached to track members  146  by tilting the tile at an angle with respect to vertical and inserting the upper edge of the tile into tile space  164  defined between lower wall  152 , lower front wall  158 , and lower rear wall  160  and pushing the tile upwardly within tile space  164  while also moving the tile to a vertical position. This first component of movement of the tile is shown by arrow  161  in  FIG. 13   b . In this manner, the lower edge of the tile clears upper front wall  154  of another track member  146  (or clears ridge  106  of horizontal wall  104  of a lower sub-frame member  76 ,  FIG. 6   a ), and the lower edge of the tile is moved into tile space  162  defined between upper wall  150 , upper front wall  154 , and upper rear wall  156  of the track member  146 . Thereafter, as shown by arrow  163  in  FIG. 13   b , the tile is shifted downwardly such that the lower edge of the tile rests on upper wall  150  of the lower track member  146  (or upon horizontal wall  104  of a lower sub-frame member  76 ). 
     Referring to  FIG. 14 , the rear faces  54   b  of the tiles  54  may additionally include hooks  170  for engaging the interior surfaces of track member mounting walls  114  of mid-channel members  90 . The foregoing connection is particularly useful with large tiles  54  which extend along the entire height of the framework  52  to prevent such tiles  54  from bowing outwardly relative to framework  52 . Therefore, as shown in  FIGS. 2 and 16 , relatively large tiles  54  may be mounted to framework  52  which extend the entire distance between the track members  146  which are mounted to upper sub-frame members  74  and lower sub-frame members  76 . 
     Additionally, as shown in  FIG. 14 , swing brackets  172  may be attached to framework  52  as shown in  FIG. 14  to provide further support for the upper edges of tiles  54 . Specifically, swing brackets  172  include tongues  174  which are received into grooves  176  which may be provided in track members  146  to attach swing brackets  172  to a pair of track members  146  which are disposed on opposite sides of framework  52 . Swing brackets  172  further include spacers  178  which abut base wall  92  of upper sub-frame members  74 . In this manner, swing brackets  172  also connect a pair of track members  146  which are disposed on opposite sides of framework  52  to secure the connection between track members  146  and framework  52 . 
     Referring to  FIG. 16   a , a portion of framework  52  of an exemplary partition system  50  is shown which includes two C-shaped vertical frame members  66  connected by spanners  70 . The two C-shaped vertical frame members  66  in  FIG. 16   a  may be connected to further vertical frame members  64 - 68  as desired, in the manner described above, to create a larger framework  52  of a desired size and shape. Each vertical frame member  66  includes one upper sub-frame member  74  and one lower sub-frame member  76  attached thereto, and further, also includes four mid-channel members  90  attached thereto. Five track members  146  are shown attached to the framework  52  on one side thereof in  FIG. 16   a ; however up to five track members  146  may also be attached to the opposite side of framework  52  as desired. Specifically, one track member  146  is attached to the upper sub-frame members  74  of the vertical frame members  66 , and four track members  146  are attached to the respective mid-channel members  90  thereof. 
     On one side of framework  52  of  FIG. 16   a , a number of decorative tiles  54  of varying width are mounted between pairs of vertically adjacent track members  146  or, with respect to the lowermost tile  54 , between the lowermost track member  146  and the lower sub-frame members  76  of the framework  52 , in the manner described above. Notably, the lateral location of each tile  54  which is mounted between adjacent track members  146  is not determined or related to the locations of the vertical frame members  66 , but is only determined by the placement of track members  146 . In this manner, as shown in  FIG. 16   b , track members  146  allow for the placement and location of tiles  54  which is independent of the configuration of framework  52  therebeneath, such that tiles  54  may be arranged in any desired pattern on the face of framework  52 . For example, a repeating, brick-like pattern of tiles  54  may be arranged upon framework  52 , or alternatively, a random arrangement of tiles  54  of varying width may be arranged upon framework  52 . 
     Advantageously, the foregoing manner in which track members  146  are mounted to framework  52 , and the manner in which tiles  54  are in turn mounted to track members  146 , provides substantial design flexibility to partition system  50 . Similarly, each of the functional tiles, which are described below, may also be selectively mounted upon framework  52  in the same manner as described above with respect to decorative tiles  54 . 
     The number mid-channel members  90  which are attached to the vertical frame members  64 ,  66 , and  68  may be varied as required to in turn vary the number of track members  146  which are attached to framework  52 . Further, the number of track members  146  on each side of framework  52  may be varied to in turn accommodate varying height and/or positioning of tiles  54  on each side of framework  52 . As shown in  FIG. 16   a , a number of tiles  54  of varying width and/or height may be mounted to opposite sides of framework  52 . For example, a number of tiles  54  are mounted to one side of framework  52  in  FIG. 16   a , and a single, large tile  54  is mounted to the opposite side of framework  52 . Further, because tiles  54  are attached to track members  146 , which may span multiple framework sections  72  of framework  52 , tiles  54  in turn may also span one or more framework sections  72  and/or vertical frame members  64 - 68  as desired, as shown in  FIG. 16   b , or may span only portions of framework sections  72 . For example, referring to  FIG. 1 , tiles  54   a  each span two adjacent framework sections  72 . 
     Top cap  180 , shown in  FIG. 15 , generally includes arched body portion  182  and a pair of leg portions  182 . As shown in  FIG. 14 , leg portions  182  rest upon upper front walls  154  of track members  146 , and the ends of leg portions  182  engage upper rear walls  160  of track members  146 , to attach top cap  180  to the uppermost track members  146  of the partition system framework  52 . Top cap  180  covers channel  78  of upper sub-frame members  74 , and provides an aesthetic, finished upper surface to framework  52  of partition system  50 . Referring to  FIG. 2 , vertical trim elements  186  include arched body portions  188  and C-shaped attachment fittings  190  which engage around uprights  82  of vertical frame members  64 ,  66 ,  68  to attach vertical trim elements to framework  52 . Similar to top caps  180 , vertical trim elements  186  provide aesthetic, finished surfaces to framework  52  of partition system  50  at locations where uprights  82  of vertical frame members  64 ,  66 ,  68  would otherwise be exposed, such as at L-, or T-junctions within framework  52 , or at the end portions of framework  52  where C-shaped vertical frame members  66  are located. 
     Referring to  FIGS. 19 and 20 , the attachment of floor trim elements  142  to framework  52  is shown. Floor trim elements  142  generally include faces  192  with attachment legs  194  depending rearwardly therefrom, which have inwardly-directed lugs  196 . C-shaped floor trim mounts  86  are secured to the lower ends of uprights  82  of vertical frame members  64 ,  66 , and  68 , and terminate in bent ends  198 . Floor trim elements  142  are pressed onto floor trim mounts  86  such that attachment legs  194  of floor trim elements  142  are biased outwardly by engagement of lugs  196  with bent ends  198 , until lugs  196  clear bent ends  198  to return inwardly to their original positions, thereby engaging behind bent ends  198  to secure floor trim elements  142  to floor trim mounts  86 . Also, the upper portions of floor trim elements  142  above the upper attachment legs  194  thereof overlap horizontal walls  104  and ridges  106  of lower sub-frame members  76 . Further, referring to  FIG. 19 , lower attachment leg  194  of each floor trim element  142  may additionally engage floor trim mounts  130  of harness brackets  124 . 
     Framework  52  of partition system  50  may be mounted to existing, permanent walls  200  within an office space as shown in  FIGS. 21   a  and  22 . Referring to  FIG. 21   a , an existing, permanent wall  200  generally includes studs  202  to which track members  146  are mounted as described in the above-incorporated U.S. Pat. No. 5,309,686. Specifically, track members  146  may be mounted to studs  202  of permanent wall  200  using bolts (not shown) or may also be mounted to the drywall or other facing wall material  204  of permanent wall  200  between studs  202  using a bolt and molly anchor assembly (not shown) for example. Also, decorative wall panels  206  may be mounted to permanent wall  200  between track members  146  as described in the above-incorporated U.S. Pat. No. 5,309,686. 
     To attach framework  52  of partition system  50  to permanent wall  200 , a vertical frame member of framework  52 , such as C-shaped vertical frame member  66 , is provided which mounting plate  208  attached to the face thereof opposite upper and lower sub-frame members  74 ,  76  and mid-channel members  90 . Referring to  FIG. 22 , mounting plate  208  includes apertures  210  therein. Fasteners  212  are inserted through apertures  210  in mounting plate  208  and into rectangular-shaped connectors  214  which, when disposed in the orientation shown in  FIG. 22 , may be received within the channel of track members  146 . After connectors  214  are received within track members  146 , fasteners  212  are threaded further thereinto, eventually rotating connectors  214  such that connectors  214  engage behind upper front wall  154  and lower front wall  158  of track members  146 . In this manner, upper front wall  154  and lower front wall  158  of track members  146  are captured between connectors  214  and mounting plate  208  to attach framework  52  to mounting tracks  146  of permanent wall  200 . Generally, the foregoing attachment is used to either start a run of the partition system  50  from permanent wall  200 , or to end a run of the partition system  50  against permanent wall  200 , but may also be used to attach partition system  50  to permanent wall  200  wherever necessary along track members  146  within an interior office space, as indicated by the horizontal arrow in  FIG. 21   a.    
     Alternatively, as shown in  FIG. 21   b , the same attachment system described above with respect to  FIGS. 21   a  and  22  may also be used to secure one run  52   a  of framework  52  to an intersecting run  52   b  of framework  52  within partition system  50  in a 90° off-module connection. In  FIG. 21   b , for example, framework run  52   a  may comprise a finished, existing segment of partition system  50  within a workspace, which includes track members  146  and tiles  54 , with framework run  52   b  added as an extension from framework run  52   a . Notably, due to the continuous extension of track members  146 , framework run  52   b  may be attached to the track members  146  of framework run  52   a  at any selected location along framework run  52   a , as indicated by the arrow in  FIG. 21   b , which provides unrestricted possibilities for the division of space provided by partition system  50 . 
     Referring back to  FIG. 21   a , it may be seen that when track members  146  are attached to framework  52  of partition system  50 , such track members  146  will horizontally align with the track members  146  on permanent wall  200 . Similarly, referring to  FIG. 21   b , the track members of framework runs  52   a  and  52   b  will similarly align with one another. The alignment between the track members  146  of partition system  50  and track members  146  of permanent wall  200 , as shown in  FIG. 21   a , and the alignment of the track members  146  of framework runs  52   a  and  52   b , as shown in  FIG. 21   b , provide visual continuity in partition system to enhance the aesthetic appearance of the partition system  50  when same is attached to permanent wall  200  and/or when partition system includes intersecting framework runs. 
     Referring to  FIG. 23 , the manner in which an additional or “add-on” framework run may be attached to an installed portion of partition system  50  is shown. In  FIG. 23 , a portion of partition system  50  includes an L-junction provided by an L-junction vertical frame member  68 , as installed in an interior space. The installed portion of partition system  50  further includes track members  146 , tile  54 , top caps  180 , corner cap  181  mounted to framework  52  as described herein to finish partition system  50 . However, after partition system  50  is installed, it is sometimes necessary to add an additional run of framework  52  thereto in order to reconfigure partition system  50  as desired. Advantageously, after a vertical trim element  186  ( FIG. 2 ) is removed from one side of L-junction vertical frame member  68 , the side of L-junction vertical frame member  68  is exposed to accommodate the attachment of upper and lower sub-frame members  74 ,  76 , as well as mid-channel member  90 , as described above. Then, as also described above, spanners  70  may be attached to upper and lower sub-frame members  74 ,  76  to extend framework  52  from L-junction vertical frame member  68 . Finally, track members  146  may be attached to the new run of framework  52  to support decorative and functional tiles thereon in any desired configuration. In this manner, even after partition system  50  is fully installed, partition system  50  my be easily reconfigured as necessary to adapt to changing space division needs within an interior workspace. 
     Referring to  FIGS. 24   a - 25 , a second embodiment of framework  52  is shown, in which L-, T- or X-junctions are provided within framework  52  according to an alternative construction. Referring back to the first embodiment shown in  FIGS. 3   a  and  3   b , it may be seen that in order to provide an L-junction within framework  52 , L-junction vertical frame member  68  is provided, which includes two upper sub-frame members  74  and two lower sub-frame members  76  rigidly or removeably attached thereto. As also described above with respect to the first embodiment, T-junction or X-junction vertical frame members are necessary to provide T-junctions and X-junctions, respectively, within framework  52 . Further, in the first embodiment of framework  52  shown in  FIGS. 3   a  and  3   b , C-shaped vertical frame members  66  are typically used only at the ends of a run of framework  52 , or as shown in  FIGS. 21   a - 22 , are used in off-module connections of framework  52  to a permanent wall or to another run of framework  52 . 
     Referring to  FIGS. 24   a  and  24   b , the second embodiment includes corner blocks  220 , which are used to connect up to four C-shaped vertical frame members to one another to provide L-, T-, and X-junctions within framework  52 . Corner blocks  220  may be formed of a single metal extrusion, for example, or may alternatively be formed from a series of metal pieces attached to one another. Corner blocks  220  generally include central portion  222 , and four outwardly-opening channels  224  terminating in upright abutment flanges  226 . Attachment tubes  228  are pivotally mounted within channels  224  upon pins  230  which are received through transverse bores  232  of attachment tubes  228  and through the walls of channels  224 . Referring to  FIG. 24   b , each attachment tube  228  additionally includes a longitudinal, threaded bore  234  extending therein opposite the ends of attachment tubes  228  which are attached to channels  224 . Referring to  FIG. 24   a , each attachment tube  228  is pivotable between a retracted position in which the attachment tube  228  is disposed within a corresponding channel  224  of corner block  220  and an extended position in which attachment tube  228  is disposed perpendicular to channel  224  of corner block. In the extended position, the attachment tube  228  extends outwardly from corner block for attachment to uprights  82  of C-shaped vertical frame members  66 , as described below. 
     Referring to  FIG. 24   b , when an attachment tube is in an extended position, same may be inserted through first aperture  236  in the wall on a first side of upright  82  of a C-shaped vertical frame member  66  until the end of attachment tube  228  abuts the interior opposite wall of upright  82  around second aperture  238 , which is smaller in diameter than first aperture  236 . The abutment of the end of attachment tube  228  with the wall of upright  82  about second aperture  238 , as well as the abutment of the wall of upright  82  about first aperture  236  with upright abutment flanges  226  of channel  224 , acts as stop upon extension of attachment tube  228  into upright  83 , and indicates to an installer that upright  82  is properly positioned with respect to corner block  220 . Thereafter, a fastener  240  is inserted through second aperture  238  into threaded bore  234  of attachment tube  228  to secure upright  82  of C-shaped vertical frame member  66  to corner block  220 . As may be seen from  FIGS. 24   a  and  24   b , two C-shaped vertical frame members  66  may be connected to corner block  220  at a right angle to provide an L-junction within framework  52 . Further, three or four C-shaped vertical frame members  66  may be connected to corner block  230  to provide a T-junctions or an X-junctions within framework  52 , respectively, as desired. When not in use, attachment tubes  228  are disposed in the above-described retracted position. Thus, in the second embodiment, because only C-shaped vertical frame members  66  are used to form L-, T-, and X-type junctions within framework  52 , the use of specialized L-, T-, and X-junction vertical frame members is not required to form L-, T-, and X-type junctions within framework  52 , thus reducing the number of types of vertical frame members required. 
     Referring to  FIG. 25 , swivel bracket  242  is provided to secure the upper ends of adjacent C-shaped vertical frame members when same are connected to corner block  230  in an L-, T-, or X-junction in the second embodiment. Swivel bracket  242  includes a pair of L-shaped metal plates pivotally secured to one another as shown in  FIG. 25 . In the orientation shown in  FIG. 25 , swivel bracket  242  has an X-shape with four exposed blades  244  which are received within channels  78  of the upper sub-frame members  74  of four C-shaped vertical frame members  66  to secure same together in an X-junction. Swivel bracket  242  may be rotated along arrow  246  in  FIG. 25  to overlap two blades  244  such that swivel bracket  242  has a T-shape for receipt within channels  78  of the upper sub-frame members  74  of three adjacent C-shaped vertical frame members  66  to secure same together in a T-junction. Finally, swivel bracket  242  may be rotated along arrow  248  in  FIG. 25  to overlap two sets of blades  244  such that swivel bracket  242  has a L-shape for receipt within channels  78  of the upper sub-frame members  74  of two adjacent C-shaped frame members  66  to secure same together in an L-junction. 
     Referring to  FIGS. 17 and 18 , window tile  380  is shown mounted to framework  52  of an exemplary partition system  50 . Window tile  380  includes a pair of opposing window frame units  382 , each defined by horizontal and vertical frame members  384 ,  386 , respectively. Window frame units  382  are attached to framework  52  in the same manner as described above with respect to tiles  54 , wherein the edges of horizontal frame members  384  thereof are captured by track members  146 . Each frame member  384 ,  386  includes embossments  388  for receipt of fasteners (not shown) for attaching frame members  384 ,  386  together to define rectangular window frame units  382 . A glass or other transparent or translucent pane  390  is attached to one of the opposing frame units  382  by brackets  392 , and is captured between opposing frame units  382  and located centrally within framework  52  when the opposing frame units  382  are attached to framework  52 . Alternatively, a sheet of fabric mesh or other material may be attached to one of frame members  384 ,  386  by brackets  392 , by adhesive, or by a spline (not shown) secured to one of members  384 ,  386  in a suitable manner. Such fabric mesh or other material may provide a semi-opaque transition through framework  52 , which provides visual privacy yet allows for air and sound passage between the opposite sides of partition system  50 . 
     In  FIGS. 26-45   d , a variety of functional tiles are shown which, in addition to decorative tiles  54 , may be mounted to framework  52  of partition system  50  to provide functional features thereto. Generally, each of the functional tiles described below includes an upper edge and a lower edge similar to decorative tiles  54 , enabling the functional tiles to be attached to framework  52  of partition system  50  in the same manner as that described above with respect to decorative tiles  54 . Thus, the attachment of each functional tile below to framework  52  will not be further described. 
     Referring to  FIGS. 26-28 , retractable workspace tile  56   a  is shown, which includes tile body  250  having upper and lower edges, and work surface frame  252  pivotally connected by pivot hinge  254  at a lower end thereof to tile body  250 . Work surface frame  252  is also connected to tile body  250  by a pair of retracting-type hinges  256  such that work surface frame  252  may be move between a retracted or storage position, shown in  FIG. 26 , and an extended or use position, shown in  FIGS. 27 and 28 . In the extended or use position shown in  FIGS. 27 and 28 , work surface frames are supported by retracting-type hinges  256  to define workspace area  258 . Referring to  FIGS. 27 and 28 , work surface  260  includes handle recess  262  which may be grasped by a user to pull work surface  260  outwardly of work surface frame  252  to an extended position shown in  FIG. 28 . As shown in  FIG. 27 , any of the retractable workspace tiles  56  described herein may include magnet  265  on tile body  250  (or to work surface  260 ) aligned to engage magnetically attractive material  267  on work surface  260  (or on tile body  250 ) to hold work surface  260  against tile body  250  when work surface frame is disposed in the retracted, non-use position. Additionally, tile body  250  of retractable work surface tile  56   a  may include a power/data module  264  mounted therein, including electrical outlet  269  and data port  271  for providing electrical and/or data services to workspace area  258 . 
     Referring to  FIGS. 29-33 , a second retractable workspace tile  56   b  is shown, which is similar to retractable workspace tile  56   a , and includes upper and lower retractable workspace frames  252   a ,  252   b  moveable between retracted or storage positions, shown in  FIGS. 29 ,  30 , and  33 , and extended or use positions, shown in  FIGS. 30-32  to define upper and lower workspaces areas  258   a ,  258   b , respectively. Outlet modules  264  may be provided within tile body  250  of retractable workspace tile  56   b  to provide electrical and/or data services to each workspace area  258   a ,  258   b . Additionally, retractable work space tile  56   b  includes center tile  266  which is normally disposed in a lowered position as shown in  FIGS. 29-32 , but which also may be pivoted to a raised position, shown in  FIG. 33 , to provide access to a lighting fixture, for example, which may be disposed behind center tile  266  to provide lighting to upper or lower workspace areas  258   a ,  258   b.    
     Referring to  FIG. 34 , storage tile  270  is shown, which includes upper and lower edges and tile body portion  272  defining cavity  274  therein. When storage tile  270  is mounted to framework  52  of partition system  50 , cavity  274  of storage tile  270  is disposed within the interior space of framework  52 . Thus, in many of the applications described further below, storage tile  270  advantageously facilitates the use of the interior space within framework  52  for storage. 
     Referring to  FIGS. 35 and 36 , portable storage components, namely horizontal file pocket  276  and vertical file pocket  278  according to a first embodiment, are shown, which each body portions defined by front wall  280   a ,  280   b  rear wall  282   a ,  282   b , side walls  284   a ,  284   b , and bottom walls  286  defining storage spaces  288   a ,  288   b , respectively. Storage spaces  288   a ,  288   b  may be used to hold papers or office supplies, for example. Front and rear walls  280   a ,  280   b  include apertures  290  therein defining handles  292 , and also include hooks  294  at the opposite upper ends thereof. 
     As shown in  FIG. 37 , horizontal and vertical file pockets  276  and  278  may be mounted within storage tile  270  by engaging hooks  294  thereof within apertures  296  in rear wall  298  of tile body portion  272  of storage tile  270 , wherein bottom walls  286  of horizontal and vertical file pockets  276  and  278  rest against bottom wall  300  of tile body portion  272  of storage tile  270 . In  FIG. 38 , a horizontal series of horizontal file pockets  276  are shown mounted within storage tile  270 , and in  FIG. 39 , a horizontal series of vertical file pockets  278  are shown mounted within storage tile  270 . 
     In  FIGS. 43   a  and  43   b , storage tile  270  includes a pair of retractable storage bins  302 . Referring to  FIG. 43   b , retractable storage bins  302  are pivotally mounted within storage tile  270  such that same may be selectively moved between a retracted storage position in which storage bins  302  are disposed substantially within cavity  274  of tile body  272 , and an extended access position in which at least the upper portions of storage bins  302  are pivoted outwardly of cavity  274  of tile body  272  to expose same for access. Retractable storage bins  302  may be sized to hold horizontal and/or vertical pockets  276  and  278  therein, as shown in  FIG. 43   b . As shown in  FIGS. 43   a  and  43   b , storage bins  302  additionally include handles  304  attached to the upper edges thereof, which may be grasped by a user to move same between the retracted storage position and the extended access position. Retractable storage bins  302  may accommodate papers or other office supplies. 
     In  FIG. 43   c , storage tile  270  may include net enclosure  306  attached to tile body portion  272 , which extends across the front face of cavity  274  in tile body portion  272  to define a storage area therein. Net enclosure  306  is useful for storing odd-shaped or bulky items within storage tile  270 , and may be made of a stretchable material to allow net enclosure  306  to stretch as needed to contain such items. 
     Referring to  FIG. 43   d , storage tile  270  may additionally include compact disk (CD) holder  308 , which includes an arch-shaped body  310  having a series of arch-shaped slots  312  therein which are dimensioned to receive compact disks  314  in a horizontal orientation for storage, as shown in  FIG. 43   d . Additionally, as shown in  FIGS. 43   d  and  43   e , storage tile  270  may include retractable paper files  316  pivotally mounted to tile body portion  272  at the lower edges thereof, which generally include front plate  318  having handle  320  mounted thereto and optionally, a key-actuated lock  322 . Front plate  318  may be attached to rails  324 , shown in  FIG. 43   e , to enable hanging-type file folders to be hung therefrom for storage within cavity  274  of tile body portion  272 . 
     Referring to  FIG. 40 , another portable storage component, namely file pocket  279  according to a second embodiment, is shown. Many features of file pocket  279  which are identical to those of file pockets  276 ,  278  are denoted with identical reference numerals. File pocket  279  includes modified hooks  281 , which are adapted to engage within track members  146 , as shown in  FIG. 42 . 
     As shown in  FIG. 42 , file pockets  279  may be attached to partition system  50  in a variety of different locations. For example, a number of first horizontal file pockets  279   a  are shown mounted within storage tile  270 , as described above with respect to  FIG. 37 . A second horizontal file pocket  279   b  is shown with hooks  281  thereof engaged within channel  147  of track member  146 . Thus, in this manner, file pockets  279  may be attached to track members  146  anywhere within partition system  50 . A third horizontal file pocket  279   c  is shown mounted within cavity  274  of storage tile  270 , and is retained therein by net enclosure  306 . A fourth horizontal file pocket  279   d  is held within retractable storage bin  302  of another storage tile  270 , in the manner shown in  FIG. 43   b  above. 
     Referring to  FIG. 41 , it may be seen that file pockets  279  are sized for receipt within a standard sized drawer  275  of a file cabinet  273 , with hooks  281  of file pocket  279  engaging rails  277  within drawer  275  to hang file pocket  276  within drawer  275 . Typically, in a standard sized filing cabinet, the width between rails  277  is nominally about 310 millimeters; however, the foregoing width may vary from about 305 millimeters to about 315 millimeters, for example. Therefore, file pockets  279  may advantageously be used for storage within drawers  275  of file cabinet  273 , may be attached or mounted to partition system  50  in any of the ways described above and shown in  FIG. 42 , or further, may be selectively moved between storage in drawers  275  of file cabinet  273  and attachment to partition system  50  as desired. 
     In  FIG. 44 , media tile  330  is shown, which includes upper and lower edges  332 ,  334  and central plate  336 . Upper edge  332  of media tile  330  includes a resilient beading  338  therein, such that papers, pictures, or other flat materials may be inserted upwardly between beading  338  and central plate  336  to capture same therebetween for attachment to media tile  330  for display. Additionally, central plate  336  may be made of a suitable metal, such that magnets (not shown) may be used to attach paper, pictures, or other such materials to central plate  336 . 
     Referring to  FIGS. 45   a - 45   d , electrical tile  340  is shown, which may be used to provide electrical and/or data services to any selected vertical location within framework  52  of partition system  50 . Electrical tile  340  generally includes front face  342  having one or more outlet module apertures  344  therein, as well as upper edge  346  and lower edge  348 , and inwardly-curved side edges  350 . Outlet module apertures  344  receive trim elements  352  therein, which are shown in  FIG. 45   b , and which may be made of a resilient material to enable same to be press-fitted within outlet module apertures  344 , such that the rim of front face  342  of electrical tile  340  around outlet module apertures  344  is captured within groove  354  of trim elements  352 . Trim elements  352  define central openings  356  therein for receipt of outlet modules  358  which, as shown in  FIG. 46 , may include electrical receptacles  360  and/or data ports  362 . 
     Referring to  FIGS. 45   c  and  45   d , outlet module brackets  364  include tongues  366  at the opposite ends thereof which are received within slots  368  in upper and lower edges  346 ,  348  of electrical tile  340 , respectively, to attach electrical outlet brackets  364  thereto. Outlet modules  358  are in turn connected to outlet module brackets  364  by suitable fasteners, for example, and outlet modules  358  extend through central openings  356  in trim elements  352 , and jumper connection ports  370  thereof are exposed behind electrical tile  340  for connection to jumpers (not shown) which are used to connect outlet modules  358  to suitable components of the electrical and/or data system within framework  52 , such as harness assemblies  122  ( FIG. 12 ). 
     Additionally, referring to  FIGS. 45   a ,  45   c  and  45   d , side panels  372  are captured between upper and lower edges  346 ,  348  of electrical tile  340 , and may be slidably extended outwardly of electrical tile  340  to increase the effective width of electrical tile  340  as needed when electrical tile  340  is mounted to framework  52  of partition system  50 . Side panels  372  include lugs  374 , shown in  FIG. 45   d , which are received within slots  376  in upper and lower edges  346 ,  348  of electrical tile  340  to limit the travel of side panels  372  between the extreme retracted and extended positions of side panels  372 . 
     Referring to  FIGS. 46   a  and  46   b , an adjustable work surface bracket  420  is shown, including vertical member  422  and horizontal member  424 . Vertical member  422  includes mounting structure for receipt within channel  147  of a track member  146  of partition system  50 , including hanger portion  426  which hangs over lower front wall  158  of track member  146 , and disengagement portion  428  which projects vertically within channel  147  of track member  146  to prevent disengagement of vertical member  422  from channel  147  of track member  146 . Vertical member  422  additionally includes plate portion  430  having a plurality of vertically spaced slots  432 . Horizontal member  424  is attached to the underside of a work surface  434  by suitable fasteners, such as screws  436  inserted through holes  437  in horizontal member  424 . Horizontal member  424  also includes a vertical tab  438  which may be received within any of the several slots  432  of vertical member  422 . In this manner, by varying the connection between tab  438  of horizontal member  424  and any one of slots  432  of vertical member  422 , work surface  434  may be adjustably mounted to any track member  146  of partition system  50 . 
     Referring to  FIGS. 47   a  and  47   b , work surface support post  440  includes cantilever portion  442  and support portion  444 . Cantilever portion  442  includes planer surface  446  to which work surface  434  may be attached with fasteners  436 , such as screws, and also includes vertical tab  448  for connection with any one of slots  432  of vertical member  424  of bracket  420 . Thus, vertical member  422  is used in common with work surface bracket  420  and support post  440 . Cantilever portion  442  includes a plurality of vertically spaced holes  450  therein. Support portion  444  nests within cantilever portion  442 , and also includes a plurality of vertically spaced holes  452  which may be selectively aligned with holes  450  of cantilever portion  442 . Suitable fasteners  454  are used to attach cantilever portion  442  to support portion  444  in a vertically adjustable manner using the foregoing holes  450  and  452 . Support portion  444  includes an adjustable glide  456  which engages a floor surface. Referring to  FIG. 47   b , it may be seen that when work surface  434  is mounted to a track member  146  of partition system  50  in the manner described above, support post  440  supports at least a portion of the load of work surface  434 . Also, as shown in  FIG. 47   b , the relatively thin profiles of cantilever portion  442  and support portion  444  provide knee space beneath work surface  434  for a user seated at work surface  434 . 
     While this invention has been described as having a preferred design, the present invention can be further modified within the spirit and scope of this disclosure. This application is therefore intended to cover any variations, uses, or adaptations of the invention using its general principles. Further, this application is intended to cover such departures from the present disclosure as come within known or customary practice in the art to which this invention pertains and which fall within the limits of the appended claims.