Abstract: A device for plane-parallel attachment of a first module to a sidewall of a second module includes at least one coupling element with clamping projections having beveled end sections. The coupling element includes a guide element with two opposing guide tabs, a locking element, and a stop element, wherein the guide tabs, the locking element, and the stop element abut sidewalls of the connecting element so that the two guide tabs extend from a first opposing pair of the sidewalls, and the locking element and the stop element extend from another opposing pair of the sidewalls perpendicular to the first pair. The first module includes an interlock for captivating the coupling element or elements in the sidewall of the first module, whereas the second module has a receiving part capable of receiving the coupling element or elements captivated in the sidewall of the first module.

Abstract: In an adjustable board storage frame, a fixed side plate 5 and a movable side plate 6 that can be moved remaining parallel with the fixed side plate 5 and fixed at a desired position are placed between a top plate 2 and a base plate 3. The adjustable board storage frame includes: pinions 21 and 22 located near the four corners of the movable side plate 6; guide rails 11A and 11B that are located on the inside surfaces of the top plate 2 and the base plate 3 and on which racks 17 and 18 for engaging with the respective pinions 21 and 22 are formed; bosses 35 protruding from positions near where the respective pinions 21 and 22 for the movable side plate 6 are formed; grooves 14 that are formed near the position where the fixed side plate 5 is located on the top plate 2 and the base plate 3, and to which the bosses 35 can be inserted respectively; and connection paths 15 that are connected to the grooves 14 respectively, and where the bosses 35 pass when the movable side plate 6 is moved.

Abstract: A modular storage system comprising one or more rails that are substantially horizontally attached to a support structure and one or more storage components that are coupled to one or more of the rails such that the storage components can be repositioned along the rails. The storage components may comprise a vertical partition, a cabinet, a drawer unit, a shelving unit, and the like. The storage component may be installed between sidewalls along with shelves, dowels, or other horizontal units. A top, bottom, and/or rear panel can also be coupled to the sidewalls and/or rails to make an enclosed unit. The storage components include a notch or recess to fit over the rails so that a back portion will fit flush with a surface of the support structure. Couplers can be adjusted to tighten and loosen the storage components to the rails for easy repositioning.

Abstract: Fixing element for fixing a first and second panel to one another, which fixing element is provided on both sides with first and second insertion ends facing away from one another for insertion in a complementary cut-out in each panel, comprising at least a first snap-fit member on the first insertion end and at least one associated first bearing surface facing said snap-fit member for clamping the first panel between them, as well as at least a second snap-fit member on the second insertion end and at least one associated second bearing surface facing said snap-fit member for clamping the second panel between them. The bearing surfaces lie in the same plane in different positions, so that panels that have been fixed to one another with the fixing element are directly in contact with one another.

Abstract: A modular supporting structure is intended to support juxtaposed panels in order to form a modular partition wall adapted to subdivide and define a space to be used as an office into independent working zones. The modular supporting structure comprises a lower cross member, a plurality of intermediate cross members, an upper cross member and a plurality of upright spacers, with each upright spacer interconnecting a pair of adjacently arranged cross members. Only one joining element is provided for interconnection of each intermediate cross member to a pair of lower and upper upright spacers, respectively, at their point of concurrence, in order to form a supporting structure consisting of a framework of rectangular elementary cells intended to frame the juxtaposed panels.

Abstract: A modular cabinet and particularly one to form cabinets or rack type furniture includes a plurality of parallel posts and a plurality of targeted elements stacking on the posts. Each post has a first coupling portion. Each targeted element has a second coupling portion slidably engaged with the first coupling portion. The second and first coupling portions are maintained at desired locations relative to each other through a retaining element located in the second coupling portion. The first coupling portion further has a fixing element to hold the targeted elements at two ends of the posts. The modular cabinet thus formed can be assembled and installed easily. By stacking the targeted elements the structural strength of the modular cabinet is enhanced.

Abstract: A modular integrated galley used for food preparation and storage in a passenger vehicle includes a mounting rack defining a plurality of openings or spaces and having a plurality of structural mounting points disposed within the spaces for receiving a plurality of individual galley modules. Each of the galley modules including a generally box-like outer shell having top, bottom, front, rear, and side walls. At least two of the galley modules having a different functional component contained within the outer shell that is selected from the group consisting of a beverage maker, a water dispensing unit, an oven, a refrigerator and a storage compartment. The modular integrated galley further including means for interconnecting adjacent galley modules including an elongate connecting rail defining an outer perimeter having at least two slots formed along the outer perimeter for receiving complimentary ribs on adjacent galley modules.

Abstract: A detachable fastener assembly includes a pin member and a nut. The pin member includes a base and a rotating pin. The rotating pin is mounted rotatably in the base and has a shank, a lever and a clamping tab. The shank has a protruding end. The lever is mounted on the shank to rotate the rotating pin. The clamping tab is formed on the protruding end of the shank. The nut has a receiving space, two ends, an inner surface and a flange. The flange is formed on the inner surface of the nut in one of the ends of the nut and corresponds to the clamping tab of the rotating pin. After the clamping tab is inserted into the nut and extends through the flange of the nut, the rotating pin is rotated to prevent the clamping tab from escaping from the nut.

Abstract: A modular display system comprises a plurality of identical modules. Each module includes a vertical mounting surface, a pair of sidewalls, top surface and a bottom surface lying in planes which extend at right angles to the mounting surface. A pair of top rails lie above the top plane and form outward facing channels. A pair of bottom rails extend inward from respective sidewalls just above the bottom plane, each bottom rail engaging in a respective channel when two modules are assembled one above the other. The inner surfaces of at least one of the top rails and the bottom rails converge toward the top or bottom plane at an acute angle so that the inner surfaces of the top rails are received against the inner surfaces of the bottom rails in a press fit. The modules are latched in this position by a detent and shoulder arrangement.

Abstract: A modular system and method are disclosed. The system comprises a first unit, a second unit, and a connector for coupling the first unit and the second unit. The first unit has a first upper projection and a first lower projection, and the second unit has a second upper projection and a second lower projection. The connector comprises upper lower tracks. Both the upper and lower tracks have a slot and an engagement guide configured to receive and to guide the projections into a sliding engagement with the slots. The first unit is coupled to the second unit by positioning the first unit proximate the second unit so that the upper and lower projections are proximate each other; aligning the engagement guides and the slots with the projections; and moving the connector so that the engagement guides guide the projections into engagement with the tracks and slide into the slots.

Abstract: A modular laboratory cabinet assembly consists of a pair of identical housing end units arranged in an inverted spaced apart relations to each other, and at least a pair of identical base housing modules arranged in an inverted side by side relations to each other and interposed between the housing end units.

Abstract: A chair comprises a seat, legs for supporting the seat, a backrest frame connected to the legs, and a backrest attached to the backrest frame. The backrest includes a backrest panel and backrest inserts. The backrest panel has slots extending inwardly from peripheral edges of the backrest panel. Each insert is configured for sliding insertion into a corresponding one of the backrest slots. The backrest is secured to the backrest frame by fasteners that pass through the backrest frame and into a corresponding one of the backrest inserts. The backrest inserts may be formed of a sturdy plastic to provide a secure anchor point for the fasteners. This provides a significant advantage for chairs having backrest panels constructed from relatively soft materials, such as pressed wood fiberboard.

Abstract: The invention discloses a case clamp (20) for clamping of carcass parts to furniture carcasses, such as tall cupboards, top or bottom cupboards, having a base frame (1), a lower compression beam (1?) provided on the base frame (1), at least two supports (2, 3) disposed on the base frame (1), of which at least one is traversable horizontally on the base frame (1), at least two pairs of horizontal compression beams (6, 7) disposed on the supports (2, 3) so as to be horizontally traversable, and an upper compression beam (4) disposed on the supports (2, 3) so as to be vertically traversable.

Abstract: An adjustment assembly adjustably couples enclosures, such as a meter breaker panelboard and a load distribution panelboard, in a back-to-back configuration within a structure, such as a wall. The adjustment assembly includes a first end member at or about the top end of one of the enclosures, a second end member at or about the bottom end of the other enclosure, and at least one fastener coupling the end members together. A number of elongated apertures in at least one of the end members, such as slots and arcuate apertures, provide translational and pivotal adjustment, respectively. The fastener, which may comprise bolts and wingnuts to enable such adjustment without requiring separate tools, extends from one enclosure through at least one of the elongated apertures in the end member of the other enclosure in order to couple the enclosures together while enabling adjustment of one enclosure with respect to the other.

Abstract: A device and method for forming an indented female connector where the dimension of the indented female connector provides for removing a male molding component without damaging a set of internal ribs formed inside the female connector. A structure comprising an indented female blow-molded connector having a first wall having a top surface and a thickness, with the first wall surrounding an opening. At least one inner wall extends substantially perpendicular to the first wall and borders the opening. At least one rib is formed in the inner wall. A bottom wall is joined to the inner wall and the distance from the rib to the top surface is greater than the thickness of the first wall. The structure further comprising a male connector having a contact edge, such that when positioned inside the indented female blow-molded connector, the contact edge releasably engages the at least one rib.

Abstract: A signage system comprising a prism-shaped tri-panel louver having a slot at each corner into which can be slid a clip. The clip is generally V-shaped with a pair of opposing sides joined at one end to form an apex. At the apex end is a pair of opposing fingers which are generally parallel to the clip sides. The fingers form a slot on each side. The clip is slid and retained by a friction fit within the slot such that when three clips are installed the fingers and slots formed therein can hold the sign graphics strip. The clip can flex somewhat to allow for insertion in a slot in the louver.

Abstract: A seat assembly (10) for use in a watercraft (12) having a deck (14). The seat assembly (10) comprises a first portion (16) and a second portion (18) spaced from the first portion (16). First (52) and second (54) connector panels that are separable from and independent of the first (16) and second (18) portions interconnect the first (16) and second (18) portions. A plurality of locking tabs (56) extend from each of the connector panels (52,54) and are inserted into a plurality of slots (58) defined in the portions (16,18) to connect the connector panels (52,54) to the first (16) and second (18) portions. A mounting bracket (84) is attached to a base (82) of each of the connector panels (52,54) and perpendicularly extends from the connector panels (52,54) to mount the connector panels (52,54) to the deck (14) thereby securing the first (16) and second (18) portions to the deck (14).

Abstract: The invention discloses unique brackets, which form a bracket assembly that may be placed at any location of various components to form an assembly piece, such as furniture. An assembled furniture piece made of furniture panels interconnected with attached engaging and receiving brackets is provided. The engaging and receiving brackets are positioned on components to facilitate the connection of the components. A method to assemble furniture having preformed arm, base, seat and back components is provided. This method of assembly saves on shipment costs, and facilitates the repair of damaged furniture.

Abstract: An improved structure of a computer housing comprising a front side board, a rear side board, a top side board, a bottom side board, a left side board, and a right side board, characterized in that a plurality of pivot members are hingedly disposed along the edges of the respective side boards, the side boards having one edge adjacent to other side boards, a plurality of securing seat plates are provided on the from side board for the mounting of a optical disc, a hard disc and soft disc, a holding seat plate is disposed on the rear side board for the mounting of a power source supply, and a plurality of the pivot members are formed along one edge of the front side board and a rear side board such that the computer housing can be spread out on as a flat plan. The present computer housing requires a small space for transportation and therefore the cost of transportation is greatly saved. In addition, the present invention provides a convenient installation and maintenance.

Abstract: A bookcase has a plurality of storage units, each having a pair of side panels, each said side panel having a draw catch and a latch, a top panel interconnecting each said side panel and having an outer surface which includes a first positioning member, a bottom panel interconnecting to each said side panel and having an outer surface which includes a second positioning member which is configured in a complementary manner to said first positioning member, wherein said positioning members are geometrically spatially positioned in alignment with one another, a back panel and a front panel removably disposed adjacent said side, panels, said top panel and said bottom panel such that when so disposed forms an enclosure.

Abstract: A portable hard disk casing includes a hollow body with a front opening, a rear opening and two pairs of guiding tracks each formed on an inner face of the hollow body to be opposite to each other, two carriers for carrying thereon a storing unit, each carrier having two coupling ribs respectively formed on a side of the carrier to be opposite to one another to correspond to and to be received in the guiding tracks of the hollow body, a front cover to connect to the hollow body to cover the front opening of the hollow body and a rear cover to connect to the hollow body to cover the rear opening of the hollow body such that the storing unit is enclosed in the portable hard disk casing.

Abstract: Modular storage and/or display system including substantially rectangular modules each including opposed first and second sides, opposed third and fourth sides perpendicular to the first and second sides and coupled thereto. A male connecting member is provided on an outer surface of each of the first and third sides and a female connecting member is provided on an outer surface of each of the second and fourth sides. The female connecting member has a structure complementary to the male connecting member. An additional male or female connecting member is provided on each of the first and second sides. By providing the same male and female connecting members on all sides of the modules, each module is connectable to any other module by coupling a connecting member on that module to an opposite connecting member on the other module.

Abstract: A seat assembly (10) for use in a watercraft (12) having a deck (14) is provided. The seat assembly (10) comprises a first portion (16) and a second portion (18) spaced from the first portion (16). First (52) and second (54) connector panels that are separable from and independent of the first (16) and second (18) portions interconnect the first (16) and second (18) portions. A plurality of locking tabs (56) extend from each of the connector panels (52,54) and are inserted into a plurality of slots (58) defined in the portions (16,18) to connect the connector panels (52,54) to the first (16) and second (18) portions. A mounting bracket (84) is attached to a base (82) of each of the connector panels (52,54) and perpendicularly extends from the connector panels (52,54) to mount the connector panels (52,54) to the deck (14) thereby securing the first (16) and second (18) portions to the deck (14).

Abstract: A modular storage rack, display structural element or cube system formed by snap together panels with alignment guides, which may also support wheels, shelves, drawers and doors. The system is assemble-in-place and may shipped and displayed for sale in a flat pack.

Abstract: An add-on storage device for flat objects, particularly CD and/or DVD cases, is made up of box-shaped housing elements which are open at the front and lie against one another with facing side walls. Clip-shaped connection elements are pushed onto adjoining side walls which form a common edge, in a predetermined fastening region from the open housing side and from the opposite bottom side, to engage over the side walls at the inner surface of the housing elements. In the fastening region, the open side at the inner surfaces of the adjoining side walls have a depression and/or elevation, and the connection element has an associated elevation and/or depression. The elevation and/or depression of the inner surface of the side wall forms a positive lock-in connection with the associated depression and/or elevation at the connection element.

Abstract: A connector for interconnecting vertical panels of adjacent cabinets comprises male and female connector elements releasably mounted in opposed openings in the sidewalls of adjoining cabinet modules. Each connector element comprises a body that is shaped to fit into a compatible opening in a sidewall of a cabinet. The body desirably has locking tabs extending radially outwardly therefrom. The locking tabs fit into the opening in the sidewall and then are rotated into locking slots in the sides of the openings. A projection with an enlarged head on the male connector element fits in a keyhole slot in the female connector element to lock the two connector elements together.

Abstract: A unit connecting mechanism and box-like unit is disclosed having an engaging unit (4) and a connecting pin (3) which are mounted to the box-like unit (1) to allow a plurality of box-like units (1,1) to be coupled to one another in a vertical direction. A handle (44) is operatively connected to a hook (43) to catch an engaging rod (3a) and is vertically raised to cause a stopper (45) to lock the hook (43) and the engaging rod (3a) in a locked condition, with operation of the handle (44) causing the stopper (45) to move downward to cause the hook disengage from the engaging rod for thereby uncoupling the box-like units (1,1) from one another. As a result, the unit connecting mechanism can be manufactured in a compact structure, providing a capability for a worker to easily and appropriately perform coupling and uncoupling operations of the box-like units.

Abstract: A cabinet system includes a connector in a gap between two cabinets. The connector includes lock elements positioned in slots formed in the cabinets, a cover member covering the gap and a spacer engaging side walls of the cabinets.

Abstract: A system for modular furniture is provided, consisting of a plurality of modules, each having a front wall, a back wall, a left wall, a right wall, a top wall and a bottom wall, the top wall having a recess and the bottom wall having at least one projection corresponding to and operable to fit within and securely engage the recess when a first of the modules is vertically stacked atop of a second of the modules. The modules can be interengagingly and securely stacked either directly atop other modules or staggered atop two or more others to provide a desired configuration. A number of adapters can be used with the modules to provide a number of customized solutions.

Abstract: A construction kit from which a do-it-yourself can erect a stable, strong structure whose predetermined geometry is maintained even when the structure is subjected to stresses. The kit includes a plurality of beams, a set of rectangular panels and two end frames. To assemble the structure, the beams are arranged to bridge the end frames and to snap-lock or screw onto the corners thereof to form a skeleton in which the beams are in parallel relation. The beams are profiled to form internal tracks for slidably receiving the panels, each panel being supported between a pair of adjacent beams to define a wall of the structure.

Abstract: A modular case is designed to hold articles and is formed by fitting together various panels of the standardized size and design. The panels are held together by retaining slots and retaining projections. A plurality of shelves are slidably disposed in the V-shaped grooves of the panels. One or more doors are pivoted to the panel by a plurality of pivoting lugs, each having an inclined guide face enabling the doors to swivel automatically. Certain retaining projections and retaining slots are provided with arcuate side walls to enhance the retaining effect. The rear panels have two wavy longitudinal sides to minimize the swaying of two rear panels which are joined together side by side.

Abstract: A hybrid connector for snap and/or slide together assembly. A method to facilitate snap or slide connect and disconnect of panels or other elements affixed to latch/catch connectors.

Abstract: The present invention is to provide a network device having a parallelepiped housing comprising a plurality of slots on two opposite sides and two opposite edges at each of an underside and a top and a plurality of pads each fastened the slots. This forms a short distance between a supporting surface and the underside of the housing by the projected pad. Also, housings of the same type of network devices can be stacked or horizontally coupled together by fastening the pads in the slots.

Abstract: The present application relates to a storage container and a storage system include a stack of such storage container.

Abstract: A snap together connection system whereby panels or other elements can be connected to form structures. Catches snap into latches thereby connecting panels or other elements. Snap in straight connectors may be used as a bridge to connect panels or other elements in-line.

Abstract: A snap together assembly method and system with alignment markers to facilitate snapping latches and catches together. Panels or other elements connected or attached to latches and/or catches can be connected using this snap together system.

Abstract: Attachments to affix panel covers, with snap together latches and/or catches to elements such as rods or panels and thereby attaching the rods and/or panels to each other to form structures.

Abstract: Disclosed herein is an electronic device including a cabinet and a shelf accommodated in the cabinet. The shelf has a floating mechanism and a plurality of guide rails for guiding a plurality of printed circuit board units. The floating mechanism includes a plurality of holes formed through the shelf, each of the holes having a first diameter; a plurality of tapped holes formed through the cabinet so as to respectively correspond to the holes of the shelf; and a plurality of screws inserted through the holes of the shelf and threadedly engaged with the tapped holes of the cabinet, respectively, each of the screws having a second diameter smaller than the first diameter. The cabinet has a plurality of first guide pins, and the shelf has a plurality of second guide pins each having a diameter smaller than that of each first guide pin.

Abstract: A control system (10) is built with functional modules expandable system, usually containing electronic circuit boards (24). The packaging of the modules allow a variable number of modules to be vertically stacked together to form a variably sized control system. There is a module having a housing which engages the housing of an abutting module in a physically locked relationship, based upon four locking elements. There are modular units (16, 18, 20) which can be joined vertically by having two interlocking control units in the front of each module and two interlocking control units in the back of each module. Placed above the uppermost intermediate module is a top module (12) for the control unit. Placed below the lowermost intermediate module is a bottom module (14) for the control unit.

Abstract: An electronic housing system is provided which includes at least two, especially plate shaped, electronic housings which can be snapped onto a mounting rail. The housing system includes a locking system including at least two housing portions, namely a starter unit and an end unit, and a key element. The starter unit is constructed as a key receptacle and the end unit is constructed as a lock complementary to the key element. The two housing portions can be locked with one another by rotation of the key element in the end unit. The locking system further includes an intermediate housing portion for positioning between the starter unit and the end unit, whereby the intermediate portion has an intermediate end unit for interlocking with the end of the key element, and an intermediate starter unit.

Abstract: A modular furniture system and its associated method of assembly. The modular furniture system contains a plurality of panels. The panels can be of any color and/or decorative texture. The panels are held in place by a rigid framework. The rigid framework is custom created by joining together a plurality of framing elements with a plurality of connection brackets. The framing elements are tubular structures with open ends. At least some of said framing elements have flanges extending therefrom that engage and support the panels. The connection brackets each have arms that pass into, and engage, the open ends of the framing elements. By providing several connection brackets of different configurations and a few framing elements of different configurations, a wide variety of furniture can be selectively created.

Abstract: The combining device for combining stacked plates includes a first plate at a bottom layer thereof, a plurality of upper plates, and an inserting means. The first plate is formed with at least two buckling rings; and a proper distance is retained between the two buckling rings. The upper plate is formed with at least one hole at position corresponding to one of the buckling rings. The buckling rings is inserted by the two inserting ends of each inserting means; and then the elastic pieces aside the inserting end pass through the buckling ring and resists against the inserting end. Thereby, the plates are combined, while the inserting end can not be released. Therefore, the combining device of the present invention provides a low cost and conventional way for combining a plurality of overlapping plates. Moreover, by the present invention, the combining surface is flat.

Abstract: An add-on storage device for flat objects, particularly CD and/or DVD cases, is made up of box-shaped housing elements which are open at the front and lie against one another with facing side walls. Clip-shaped connection elements are pushed onto adjoining side walls which form a common edge, in a predetermined fastening region from the open housing side and from the opposite bottom side, to engage over the side walls at the inner surface of the housing elements. In the fastening region, the open side at the inner surfaces of the adjoining side walls have a depression and/or elevation, and the connection element has an associated elevation and/or depression. The elevation and/or depression of the inner surface of the side wall forms a positive lock-in connection with the associated depression and/or elevation at the connection element.

Abstract: A cabinet joining system for selectively joining adjacent portions of cabinet assemblies includes a slide member having a grasping surface and an end portion thereof and a support that is adapted for selectively supporting the slide member with respect to a portion of a cabinet assembly between extended and retracted positions of the slide member. A latch is provided as adapted for mounting to another portion of another cabinet assembly that is adjacent to the portion of the cabinet assembly supporting the slide member. A latch has a base and a clasp. The clasp is adapted for engaging the grasping surface of the slide member when the slide member is in its extended position and displacing the grasping surface towards the base.

Abstract: Modular storage and/or display system including substantially rectangular modules each including opposed first and second sides, opposed third and fourth sides perpendicular to the first and second sides and coupled thereto. A male connecting member is provided on an outer surface of each of the first and third sides and a female connecting member is provided on an outer surface of each of the second and fourth sides. The female connecting member has a structure complementary to the male connecting member. An additional male or female connecting member is provided on each of the first and second sides. By providing the same male and female connecting members on all sides of the modules, each module is connectable to any other module by coupling a connecting member on that module to an opposite connecting member on the other module.

Abstract: A distribution cabinet (1) for accommodating weak-current distribution installations, in particular for arranging outdoors, having a base box (2), an outer cabinet body (3) with at least one door (4), a cabinet cover (5), and an inner installation frame (6), the installation frame (6) being made up of profile sections (50), of which the cross-sectional shapes has two insertion pockets (51a,b), of which the insertion directions (52a,b) run at right angles to one another.

Abstract: A loudspeaker box arrangement has a plurality of loudspeaker boxes. Adjacent boxes are actively connected to one another by connecting elements in a positionally adjustable manner. Adjacent boxes are pivotally connected at their front sides and joined by the connecting elements at their rear sides for adjusting the pivot angle between boxes. The connecting elements are automatically adjustable as to angle and/or length by a control unit for achieving the individual positional adjustment of a particular loudspeaker box.

Abstract: A rigging system for flying a vertical stack of loudspeakers includes left and right rigging side frames (15, 17). Each rigging side frame includes a frame structure having a top end (43), a bottom end (45), and rear and front corners (51, 53, 55, 57) which is mountable to the side of a correspondingly sized loudspeaker (13). Each rigging side frame further includes a rear link (59) for pivotally linking the rear corner of a rigging frame of one loudspeaker to the rear corner of the same side rigging frame of another loudspeaker placed in stacked relation therewith, and a cam plate link (61) pivotally attached to a cam pivot point (85) at one of the top or bottom ends of the frame structure in displaced relation to the cam link. Two or more link openings (143) are provided in the cam plate link at different angles about the cam plate link pivot point and at different radial distances from the cam plate pivot point.

Abstract: A modular storage rack, display or cube system formed by snap together panels with alignment guides, which may also support wheels, shelves, drawers and doors. The system is assemble-in-place and may shipped and displayed for sale in a flat pack.

Abstract: A modular cabinet system is disclosed whereby a number of modules can be combined to form a unique cabinet configuration. Each module may be an accessory, such as a lamp or cable duct, or a storage compartment. The storage compartment may be configured as a square or rectangular box with one open side and side walls made of a multiplex. Each side wall has at least one system hole and at least one system thread positioned so that the holes and threads of one module line up with the holes and threads of another module for assembly. The pre-existing system holes and threads allow the modules to be separated and combined repeatedly without damage.