Abstract: A Mounting Bracket A mounting bracket for a window blind including a resiliently deformable friction element, and a hinge assembly, wherein the hinge assembly includes a hinge lever member hingedly coupled to a hinge plate, wherein the hinge lever member has a first configuration in which it lies adjacent to the hinge plate, and a second configuration in which it is angled away from the hinge plate; the resiliently deformable friction element is slidably coupled to the hinge plate and extends from one end thereof; and the hinge lever member exerts a cam action on the resiliently deformable friction element, wherein the resiliently deformable friction element is urged away from the hinge plate as the hinge lever member rotates from its first configuration to its second configuration.

Abstract: A telescopic edge protection post arrangeable between a floor and a ceiling, comprising outer and inner tubes, each comprising a bottom end and a top end, the inner tube extending into the outer tube and being movable with respect thereto between an extended position and a collapsed position. The post further comprises a locking mechanism to lock the inner tube with respect to the outer tube in the extended position, and a tensioning unit arranged at the top end of the inner tube. The tensioning unit comprises a tensioning element having a primary and secondary tensioning portions, wherein tensioning of the secondary tensioning portion requires a lower force than the primary tensioning portion, allowing tensioning of the secondary tensioning portion by extending the telescopic edge protection post by hand into engagement with the floor and the ceiling. Further, the primary and secondary tensioning portions each comprise a compression spring.

Abstract: A mounting structure of a storage basket includes a post and a plug-in assembly connecting the post to the storage basket; the plug-in assembly includes a plug-in tube and a fitting tube sleeved outside the post, the plug-in tube is detachably sleeved outside the fitting tube to squeeze the fitting tube to tightly embrace the post and fixed; the plug-in tube is provided with a first plug-in portion, the storage basket is provided with a second plug-in portion, and the first plug-in portion and the second plug-in portion cooperate to insert, thereby installing the storage basket on the plug-in tube. Users can install and disassemble the storage rack through simple plugging, the mounting structure has a simple structure and a stable installation.

Abstract: Cat furniture having at least one three-dimensional structure is composed of at least two panel elements which are connected together at at least one of their panel edges. One individual panel element is provided on at least one of its panel edges with a fastening means by means of which a connection with the fastening means of an adjacent panel element is to be made. The fastening means is attached in a foldable manner to the panel element via a perforation and via at least one groove extending along the perforation.

Abstract: In one aspect of the present invention, a plurality of floor to ceiling units are provided, with each unit supporting a portion of an article/object to be supported, such as a television or shelving. Each floor to ceiling unit may include a lower leg assembly and an upper leg assembly that are telescopically connected to one another. In use, they extend from a floor to a ceiling, and are provided with mounting assemblies for engaging the floor and ceiling. Arm assemblies provide the direct support for the article to be supported.

Abstract: A modular safety fence assembly is disclosed. The safety fence may include a fence panel assembly having a top rail, a bottom rail, and mesh panel. The safety fence panel assembly may also support post assembly capable of supporting the fence panel assembly and an anchor assembly which may anchor the support post assembly to the floor using one or more relatively shallow holes formed in the floor.

Abstract: The present disclosure describes an equipment rack for a telecommunications cabinet. The equipment rack allows a telecommunications cabinet to be reconfigured such that telecommunications equipment can be vertically mounted therein. The equipment rack includes a structural rail configured to be mounted within the telecommunications cabinet, an insert plate configured to fit within a cavity of the structural rail and be secured to the structural rail, and a bracket configured to be secured to the to the insert plate and configured such that a piece of telecommunications equipment can be mounted thereto.

Abstract: A locking rail for locking of a first and a second panel horizontally. The panels each include an essentially vertical panel surface and an essentially horizontal edge surface. The locking rail includes a first and a second locking device which are configured to engage the edge surface of the first and the second panel, respectively, and an interconnecting extension which extends between said first and second locking device. The first and second locking device each includes a first locking tongue which extends essentially perpendicular to the interconnecting extension. The first locking tongue of the first locking device is configured for locking of the first panel in a first horizontal direction and the first locking tongue of the second locking device is configured for locking of the second panel in the first horizontal direction. The locking rail includes a first locking part which extends essentially perpendicular to the interconnecting extension.

Abstract: A parasol includes a pole of a tension rod-type between a ceiling surface and a floor surface of a building, a lower hub penetrated by the pole and moves in the vertical direction along the pole, an upper hub fixed to a predetermined position of the pole, ribs joined to the upper hub, struts provided with respect to each rib and connecting the ribs and the lower hub, a handle operation unit for moving the lower hub along the pole, and a sheet between the ribs. The pole is divided into an outer pipe, a ceiling pipe attached to an upper side of the outer pipe, and a lower side pipe attached to a lower side of the outer pipe. The length of the pole in the vertical direction is adjustable while the position of the sheet is maintained at a height within a certain range from the floor surface.

Abstract: A surgical access assembly includes a cannula and a retention anchor including an annular body and a washer secured to the annular body. The annular body includes an inner side surface defining an opening therethrough, and the washer includes an inner terminal edge defining an opening therethrough that is aligned with the opening of the annular body. The elongated shaft of the cannula extends through the openings. The washer is transitionable between a first configuration in which the inner terminal edge of the washer is coincident with or disposed radially outwardly of the inner side surface of the annular body so that the retention anchor is slidable along the elongated shaft, and a second configuration in which the inner terminal edge of the washer extends radially inwardly of the inner side surface of the annular body and engages the elongated shaft to fix the retention anchor to the elongated shaft.

Abstract: A partition mount system includes an integrated plunger assembly. The integrated plunger assembly is constructed and arranged to be integrated into an interior of an end of an extension pole, for example a standard telescoping extension pole. Mounting of the plunger in an interior portion of the pole in this manner provides for a sleek design that is relatively lightweight. Assuming that the pole in which the anchor is mounted is part of a telescoping pole system, the anchor and plunger do not interfere with full travel of the interior pole with respect to other poles in the telescoping system. In this manner, operation of the telescoping pole system is not inhibited by the integrated plunger assembly.

Abstract: A support device with at least first and second support members movable with respect to each other in a direction parallel to their longitudinal axes. The support device having distal ends and the distal ends each including an anchor portion to engage directly or indirectly with a suitable surface in use, the support device including a biasing assembly for biasing one or more of the distal ends of the support device into engagement with a suitable surface in use, and the biasing assembly is located at or adjacent an end of at least one of said first and second support members and between said support member end and the anchor portion nearest to said support member end. The support device is particularly suited to a safety fence or assembly or a worker protection system.

Abstract: A bed assist bar includes an undercarriage and a mid-frame attached to the undercarriage. A handle bar is selectively pivotable, using a twist-lock mechanism sub-assembly, between a first position locking the handle bar in a substantially parallel orientation relative to the mid-frame and a second position locking the handle bar being in a substantially orthogonal orientation relative to the mid-frame.

Abstract: The invention provides a conveniently fixed roller blind and a fixing device thereof. The roller blind comprises a sleeving tube, a shaft assembly, a fixing device, a retractable device, two fixing brackets, and a blind. The fixing device includes a shaft housing cover, a press buckle penetrating into the shaft housing cover, a spring retracting in the press buckle, a spring damping sleeve sleeving with the press buckle to allow the spring to expand and retract inside, a damping ring fixed on a bottom end of the spring damping sleeve, and a safety buckle shaft housing provided for the spring damping sleeve and the shaft housing cover to be sleeved into. The press buckle is moved back and forth in the spring damping sleeve by the spring, and is pressed so that the roller blind can be assembled and fixed by the fixing brackets.

Abstract: The present invention discloses a punching-free mounting assembly for installing a curtain, has a mounting seat; the mounting seat is provided with a top block slidingly connected with the mounting seat, and a self-locking unit used for pushing the top block; a part of the self-locking unit is exposed outside the mounting seat; the mounting seat is provided with a top block and a self-locking unit inside. In addition, a part of the self-locking unit is exposed outside the mounting seat, which is convenient for a user to adjust the self-locking unit, and since the self-locking unit is far away from the top block, interferences such as being too close to the wall body are avoided, making the installation more convenient and efficient.

Abstract: A method for countertop installation includes affixing a mechanical interface to at least one of a cabinet framework and a wall, and securing a countertop directly to the mechanical interface without directly attaching the countertop to the cabinet framework or the wall.

Abstract: A support is provided, comprising a first bar with a first abutment element, a second bar with a second abutment element, and a guiding device by which the first bar is displaceably guided on the second bar. An actuating device which acts on the first bar and which comprises an actuating element is arranged on the second bar. A displacement of the first bar in a first direction of displacement can be initiated by actuation of the actuating element. The first direction of displacement is a direction of increase in distance between the first abutment element and the second abutment element. The actuating device comprises a blocking device which blocks a displacement of the first bar in relation to the second bar in a second direction of displacement, which is opposite the first direction of displacement, at least when no active releasing action occurs at the blocking device.

Abstract: Disclosed are the design and utilitarian characteristics of a support device for supporting a cover wherein such cover is typically used to cover a vehicle such as a boat or automobile. The invention includes a dome shaped support device with a depending base configured for extending through a cover. The depending base defines an interface for being associated with a support structure such as a pole and such interface may be a swivel interface. Additionally, the support device may define a suspension interface so that a tether may be used to apply a support force from above the support device. The support device may also define a swivel device configured for being associated with a support surface such as a floor.

Abstract: An improved self-massage apparatus may feature a main mounting bar serving as a body and one or two coaxial and slidable tubes to provide mounting tension. An outer surface may present a rotatable massage head. The two ends of the apparatus may have brackets or other interfaces to secure the apparatus between two parallel surfaces. Clamps, ratchets, and other tension devices may be used to hold the main components in fixed relation to each other and the massage head may rotate a full 360° on at least two planes for a customizable and extremely versatile massage experience.

Abstract: An electronic equipment enclosure includes a frame structure and at least one panel secured to the frame structure. The at least one panel includes one or more panel knockouts arranged therein. Each panel knockout is configured to be removable from the at least one panel to provide a pass-through opening for a cable. The at least one panel further includes a split brush assembly seated in place of a removed one of the one or more panel knockouts.

Abstract: A columnic actuated spring loader can be incorporated into existing structures. The system includes: a base that is positioned on a floor, a vertical column having a proximal end that is secured to the base and a distal end, dual vertical rods having proximal ends that are secured to the base and distal ends, and upper and lower spring mechanisms. The distal ends of the column and rods support an upper bearing plate. Each spring mechanism includes a support member that is slidably secured to the dual vertical rods, dual springs that are slidably attached to the dual rods, and bracing which is a network of rigid members that interconnect the support member, column and dual rods. Loads are transferred from the upper bearing plate and support plates to the base. The energy is dissipated into the foundation. The bracings distribute energy between the dual rods and the column.

Abstract: A safety-anchor assembly of a fall-protection lifeline system for workers configured to be implemented in a work area defining a lower surface and an upper surface spaced from the lower surface, the lower and upper surfaces of the work area each substantially planar and oriented substantially parallel with each other. The safety-anchor assembly includes a base tube and a staff tube adjustably attached to the base tube to form a post shore extending under compression pressure between and frictionally supported upon the lower and upper surfaces of the work area to prevent movement of the post shore with respect to the lower and upper surfaces, an acute angle of about eighty-one degrees being defined between the post shore and the lower surface of the work area and a corresponding obtuse angle of about ninety-nine degrees being defined between the post shore and the upper surface of the work area.

Abstract: An electrical box mounting bracket includes a mounting frame having a central opening. A removable support member is coupled to an inner edge of the central opening by a frangible tab. A removable extension member is coupled to the support member by a frangible tab that can be removed and attached to an end of the support member. A cable guide is coupled to an inner edge of the central opening by a first fold line and is bendable to a position for supporting a cable. The cable guide has a body or support plate with a plurality of adjacent cable openings with a retaining tab between two adjacent cable openings. The retaining tab is bendable from a first open position for inserting a cable into the cable openings and a second closed position to retain the cable in the cable openings.

Abstract: A collapsible safety barrier and support post for releasably securing between a ceiling structure and a floor structure. The safety barrier and support post comprises a plurality of longitudinal rails hingedly secured to a first end post and to a second end post, an extension rail releasably engageable with the second end post, and a latching mechanism to releasably secure the extension rail to the second end post. The safety barrier has a deployed position and a collapsed position. When in its deployed position the barrier is secured between a floor and a ceiling structure. When in its collapsed position the longitudinal rails, the first and second end posts, and the extension rail are positioned generally parallel and adjacent to one another.

Abstract: A support bracket includes a support beam and a center bracket. The center bracket has a body that defines an opening to receive a sprinkler fitting, and a closure assembly, including a closure member having a first end rotatably connected to the body, and a second end having a handle. The closure assembly is movable between an open position and a closed position. When in the closed position, the closure assembly presses the sprinkler fitting against one of the body and the support beam, thereby urging the center bracket against the support beam to maintain the center bracket stationary relative to the support beam. In addition, the closure assembly includes a lock that engages with the closure assembly when the closure member moves from the open position to the closed position, and that prevents the closure member from returning from the closed position to the open position.

Abstract: A pole clamp system for mounting between a pole and an abutting surface includes a pole interface configured to interface with a side body portion of a pole, a guide portion extending from the pole interface, a locking plate extending from the pole interface adjacent to the guide portion, a biasing unit extending through the guide portion and the locking plate, and a head interface coupled to the biasing unit. The biasing unit outwardly biases the pole interface and head interface in opposite directions.

Abstract: Plumbing supply boxes may be made of a thermoset plastic material that will not melt or permit the boxes to collapse inside a wall if subjected to flames or high temperatures resulting from a fire. If the thermoset plastic boxes have a drain opening, a thermoplastic tubular drain adaptor may be connected thereto that can be solvent welded. Relatively small intumescent pads may be installed in close proximity to the drain opening which, if subjected to flames or high temperature caused by a fire, will expand and form an insulating char that seals off the drain opening. The boxes may be slidable in opposite directions along adjustable support brackets to permit the boxes to be mounted in any desired position in stud bays having different spacings between the stud walls for ease of alignment of one or more openings in the box with in-wall plumbing.

Abstract: A brace for an electrical box including a rod, a sleeve, at least one mounting plate, an adjustment mechanism connecting the rod and the sleeve, and wherein the adjustment mechanism permits at least two rates of relative movement between the rod and the sleeve. The adjustment mechanism may be a threaded insert.

Abstract: The present invention is directed to a spectrophotometer instrument that includes an arm that can swing between a closed position and an open position which is upward and backward of the lower position and wherein the display is moveable between a position behind the arm to a position to a side of the arm. Thus, the features herein provides the instrument user with positioning features to allow for a superior human factors user experience.

Abstract: A support system for supporting a television, said support system comprising a mounting bracket and at least one universal clamp. The mounting bracket is fixedly mountable to said universal clamp and comprises a mounting plate provided with a hole-pattern spaced for mounting to the universal clamp; and bracket arms adapted to be attachable to a back of the television. The support system further comprises at least one mounting structure defining a longitudinal axis, having a length adjustable along said longitudinal axis and is adapted to be tension mounted. The universal clamp is adapted to allow movement along and about the longitudinal axis of the at least one mounting structure and is fastenable thereto using a lever movement. The support system is adapted to prevent movement of the television relative to the at least one mounting structure when the universal clamp is fastened thereto.

Abstract: An easy tooless installed curtain rod for window, includes an elongated tubular member having a hollow chamber at an inner end. A coil spring is placed within the hollow chamber of the elongated tubular member. A short tubular sleeve slides over the inner end of the elongated tubular member to engage with the coil spring. A pair of round metal stoppers is provided. The first stopper fits onto a distal end of the elongated tubular member and the second stopper fits onto a distal end of the short tubular sleeve. A curved handle is affixed onto a side of the short tubular sleeve. When the curved handle is manually pulled or twisted inwardly, the short tubular sleeve will compress the coil spring to provide tension and flexibility between the pair of round metal stoppers which can be positioned to bear against opposite side walls of a window, so that a curtain can hang on the elongated tubular member that is secured within the window.

Abstract: A hanger bar assembly includes a first hanger bar member and a first attachment head coupled to the first hanger bar member by a first coupling segment that is horizontally offset from the first hanger bar member. The hanger bar assembly further includes a second hanger bar member and a second attachment head coupled to the second hanger bar member by a second coupling segment. The first hanger bar member and the second hanger bar member are designed to interlock with each other. An end portion of the first hanger bar member is designed to extend past the second attachment head, and an end portion of the second hanger bar member is designed to extend past the first attachment head through a gap that is between the first hanger bar member and first attachment head.

Abstract: A hanger bar assembly for a recessed luminaire is disclosed. The hanger bar assembly includes a first hanger bar member having a first attachment structure disposed on an end thereof, and a second hanger bar member having a second attachment structure disposed on an end thereof, the second hanger bar member being adjacent to the first hanger bar member. The first and the second attachment structures each include a first wall having a first fastener aperture and a second wall having a second fastener aperture, the first and second fastener apertures being formed about a common central longitudinal axis.

Abstract: The present invention is directed to a spectrophotometer instrument that includes an arm that can swing between a closed position and an open position which is upward and backward of the lower position and wherein the display is moveable between a position behind the arm to a position to a side of the arm. Thus, the features herein provides the instrument user with positioning features to allow for a superior human factors user experience.

Abstract: A brace assembly is provided having a brace for mounting to a support and a hanger member. The hanger member is coupled to the brace by a bar positioned in a longitudinal slot in the bottom side of the brace. The bar enables the hanger member to slide along the length of the brace. The hanger member has a bottom wall and side walls with a top end for coupling to a support. A mounting bracket is removably coupled to the hanger member for supporting the brace.

Abstract: Universal support poles and kits therefor are disclosed herein. The universal support poles and kits may comprise a ceiling mount and a floor mount. The universal support poles and kits may comprise at least three pole members. The pole members may be swage coupled together. Methods of assembling universal support poles are also disclosed herein.

Abstract: A brace assembly is provided having a brace for mounting to a support and a hanger member. The hanger member is coupled to the brace by a bar positioned in a longitudinal slot in the bottom side of the brace. The bar enables the hanger member to slide along the length of the brace. The hanger member has a bottom wall and side walls with a top end for coupling to a support. A mounting bracket is removably coupled to the hanger member for supporting the brace.

Abstract: A connecting structure received in a main device for connecting an auxiliary apparatus. The connecting structure includes a retracting part formed on a bottom board of the main device and close to a sidewall of the main device and a clamping part. The clamping part is pivotablly mounted on the bottom board and pivotally connected to the retracting part. The retracting part drives the clamping part to extend out of the main device via an opening defined on the sidewall for connecting the auxiliary apparatus when the auxiliary apparatus needs to be mounted on the main device. The retracting part retracts the clamping part into the main device when the auxiliary apparatus is unmounted from the main device.

Abstract: A support for pipes uses a telescoping strut slidably holding an elongated insert with a threaded post extending outward from the insert, through a slot in the C-shaped cross-section of the struts. A bracket fits over the post and abuts supports opposing edges of the strut. A nut on the post clamps the parts immovably together. The bracket has a depending portion extending below the strut with an opening through which a pipe passes. Two threaded couplers with opposing ramped surfaces encircle the pipe and deform when tightened to clamp the pipe while also clamping opposing sides of the depending portion.

Abstract: A tool bar for securing under a hood of a car during repair and maintenance is disclosed. A rigid member spanning a substantial portion of the hood is flexibly secured to hooks. The hooks engage edges of the hood and may include a compliant covering. The hooks may secure to the rigid member by means of straps and the straps may be tensioned by means of tensioners secured to one of the hooks and the rigid member. A stabilizer secures to the rigid member and has an end that may be clipped or otherwise fastened to a portion of the hood to resist rotation of the rigid member. One or more tool retaining members secured to the rigid member, such as a socket rack, magnetic bar, hook groove, or the like.

Abstract: A support system for a fire protection sprinkler includes a support bar having a pair of end brackets disposed at the ends of the support bar. A center bracket assembly is mounted on the support bar and includes a support bracket and a hinge bracket pivotally connected to the support bracket by a hinge pin. The pair of end bracket assemblies each include an outside bracket and an inside bracket secured to the outside bracket wherein at least one of the outside and the inside bracket has an upper end connected to the support bar and includes an angled body extending laterally outward from the upper end away from the center bracket wherein the outside and inside brackets define a channel therebetween for receiving an upper rail of a T-shaped rail of a drop ceiling system.

Abstract: A support system for a fire protection sprinkler includes a support bar having a pair of end brackets disposed at the ends of the support bar. A center bracket assembly is mounted on the support bar and includes a support bracket and a hinge bracket pivotally connected to the support bracket by a hinge pin. The pair of end bracket assemblies each include an outside bracket and an inside bracket secured to the outside bracket wherein at least one of the outside and the inside bracket has an upper end connected to the support bar and includes an angled body extending laterally outward from the upper end away from the center bracket wherein the outside and inside brackets define a channel therebetween for receiving an upper rail of a T-shaped rail of a drop ceiling system.

Abstract: A hanger bar assembly for a recessed luminaire is disclosed. The hanger bar assembly includes a first hanger bar member having a first attachment structure disposed on an end thereof, and a second hanger bar member having a second attachment structure disposed on an end thereof, the second hanger bar member being adjacent to the first hanger bar member. The first and the second attachment structures each include a first wall having a first fastener aperture and a second wall having a second fastener aperture, the first and second fastener apertures being formed about a common central longitudinal axis.

Abstract: A field installable support bracket assembly for an electrical box, wherein the electrical box is to be secured to a side surface of a first structural stud. The field installable support bracket assembly includes a stud bracket and an adjustable back bracket. The stud bracket includes a stud bracket member configured to be secured to a front surface of a second structural stud, and a stud bracket guiding rib. The adjustable back bracket includes a mounting panel configured to be secured to a back of the electrical box, and a back bracket guiding rib. The back bracket guiding rib and the stud bracket are configured to join the stud bracket to the adjustable back bracket. The field installable support bracket assembly is configured to provide support for the electrical box.

Abstract: A display fixture includes a fixed component including a product receiving portion and an elongated spine portion, a first adjustable component insertably engaged with the elongated spine portion and including a product receiving portion and an adjustment portion, a second adjustable component insertably engaged with the elongated spine portion and including a product receiving portion and an adjustment portion, a third adjustable component insertably engaged with the elongated spine portion and including a product receiving portion and an adjustment portion. The first adjustable component operates to slidably adjust a distance between the product receiving portion of the fixed component and the product receiving portion of the first adjustable component, while the second adjustable component and the third adjustable component operate to slidably adjust a distance between the product receiving portion of the second adjustable component and the product receiving portion of the third adjustable component.

Abstract: In various embodiments, a television wall mount is provided that may be installed at a position in a television wall nook such that when the television monitor is bolted, screwed or hung on the television monitor mounting bracket, the television is located in front of and outside the television wall nook. In this manner, a television monitor that is too wide to fit in the television wall nook may be installed over the television wall nook by mounting the television on the television wall mount installed in the television wall nook.

Abstract: A device for supporting a television includes a compressible, adjustable length pole on which is slidably mounted a bracket. The pole includes first and second elongated members that are joined in a telescoping relationship. A pair of springs resiliently urges the first and second members apart and thereby enables the pole to be easily and reliably installed in a vertical orientation between the floor and ceiling of a room. The mounting bracket includes a flat plate to which the television is coupled and a pair of arms, the distal end of each arm being dimensioned for fitted insertion into a corresponding longitudinal side channel formed in the pole. As such, the mounting bracket is designed to be linearly displaced along the length of the pole and subsequently locked in place relative thereto. In this manner, the viewing height of a television mounted on the bracket can be adjusted.

Abstract: A hanger bar assembly includes a first hanger bar member that includes a first rail segment. The first hanger bar member also includes a first channel segment that includes a first channel. The first hanger bar member also includes a first transitional middle segment extending between the first rail segment and the first channel segment. The hanger bar assembly further includes a second hanger bar member that includes a second rail segment. The second rail segment is positioned in the first channel of the first channel segment. The second hanger bar member further includes a second channel segment that includes a second channel. The first rail segment is positioned in the second channel. The second hanger bar member also includes a second transitional middle segment extending between the second rail segment and the second channel segment.

Abstract: A hanger bar is provided for suspending and securing an electrical box between ceiling joists. The hanger bar is comprised of a main tube section, a box support bracket, a box which attaches to the box support bracket and two end plates which are attached to the main tube section without the use of fasteners or welding.

Abstract: A guide track system and a bracket assembly thereof for supporting guide tracks thereof are provided. The guide track system comprises a first guide track piece, a second guide track piece, and a bracket assembly configured to support the first and second guide track pieces. The bracket assembly comprises a mounting feature configured to be mounted to a support structure, and a guide track supporting feature connected to the mounting feature and configured to support a portion of the guide track mounted thereon. The guide track supporting feature, in turn, comprises a body having a first end, a second end, and a longitudinal axis extending through the first and second ends, wherein the first end is configured to be coupled with an end of the first guide track piece, and the second end is configured to be coupled with an end of the second guide track piece.