Abstract: The present invention relates to an installation structure of an elastic gasket attached and installed as a sealing member to a moving window glass supporting insulation bracket in a sliding window having a two-sided supporting frame window chassis, and more specifically, it relates to an installation structure of a sealing member (e.g. an elastic gasket) that is installed to provide a sealing function between a glass supporting insulation bracket that directly supports a glass panel of the moving window from the top or bottom and a window frame provided with a sliding rail, when opening and closing the sliding window having only two-sided supporting frame that support both sides of the glass window constituting the sliding window.

Abstract: A supporting device (MC) is described to slidingly support, and linearly move along an axis (X), an object such as e.g. a leaf. A magnetic return force generated by the cooperation of a magnetic flux generator (54, 56) and an element (10) reactive to the magnetic field, develops. The element is able to slide relative to the axis (X) during the movement of the object, and has a cross-section (62) which, seen in a plane orthogonal to the axis (X), has a width that varies along the length of the first element (10) parallelly to said axis (X).

Abstract: A door assembly is shown and described herein. The door assembly may include at least one door panel and a door frame having a plurality of frame members including a header and a mullion. The invention may also be considered a frame member. The frame member may be a mullion and include a core; and a two-piece top piece adjoining the core to form a structural member. The door assembly may further include at least one adjacent panel. The inventions disclosed are also applicable to jambs and window structures. Also disclosed are methods and assemblies for a mullion door frame member.

Abstract: Exemplary implementations of a thermally-efficient slidable fenestration assembly are glass window systems or glass door systems having one or more sliding glass panels. The fenestration assemblies are adapted to be mounted in an architectural structure such as a building or house. Accessory channels in the fenestration framework may be provided to facilitate nail-fin, retro-fit or screen adaptors as means to attach the assembly to the surrounding architecture. Stiles, tracks and rails of the assembly are specifically configured to reduce heat transfer across the fenestration assembly, while simultaneously maintaining the structural integrity and durability of the overall assembly. Certain stile, track and rail components may comprise materials of relatively low conductivities. Preferred stile configurations include interlock elements arranged to reduce the assembly's vulnerability to tampering from a position outside of the fenestration.

Abstract: A soft-closer device has a housing installable in door rail, a roller and latch assembly in the housing and movable relative to the housing between first and second positions. A locking mechanism is adapted to secure the roller and latch assembly against movement to hold a sub-housing in a required position. The assembly includes a soft-closer actuator in the sub-housing operable to extend and contract, with latch mounted to project through and move along an opening of the housing as the actuator extends and contracts, and a journal on the sub-housing at which the roller is rotatable.

Abstract: A frame system for a door or window is constituted by at least one fixed frame (1) and at least one movable sash (3) mounted in the fixed frame and having a central post (5) and a handle (4). The locking system (6) for the sash (3) is integrated in the aluminum profiles of the fixed frame (1). The sash (3) has no visible aluminum profiles next to the floor and next to the ceiling. The thickness of the visible aluminum of the post and of the handle ranges from 1 mm to 5 mm and the central post (5) and the handle (4) can be mounted to either side of the movable sash without modification.

Abstract: A door system includes a door having a housing mounted in the bottom edge of the door that retains a bottom seal and a second channel for receiving a guide. A seal is formed adjacent the periphery of the door between the door and a door opening in a structure when the door is in the closed position. The seal includes deformable gaskets that extend between the structure and the door to form a seal around the door opening. A first soft close device is mounted adjacent the open positon and a second soft close device is mounted adjacent the closed position. A single activator pin is mounted on the door and positioned such that the activator pin engages the first soft close device as the door nears the open positon and engages the second soft close device as the door nears the closed position.

Abstract: Embodiments of the present disclosure relate generally to improved braking systems for slide extractors. Slide extractors are generally used in aircraft galleys in order to move containers forward. The disclosed slide extractor braking system provides cooperation between magnets and corresponding conductive material in order to manage and appropriately slow retraction of the slide extractor in use.

Abstract: A composite glass pane with a through mounting hole. The composite glass pane having a first pane and a second pane that are bonded to one another via a thermoplastic intermediate layer and at least one passage that extends through the entire composite glass pane, wherein the edge of the passage is provided with a polymeric element formed in one piece having a through hole running through the passage.

Abstract: A sliding window assembly for a vehicle includes a window frame having a top rail portion coupled to a bottom rail portion by side rail portions. The top rail portion has a shorter length than the bottom rail portion. A fixed window is attached to the window. A sliding window is mounted in a sliding sash. The sliding sash is moveable relative to the fixed window. The sliding sash includes a top sash portion coupled to a bottom sash portion by side sash portions. The top sash portion has a shorter length than the bottom sash portion. A removable track assembly is attached to the top rail portion. At least one bearing is attached to the top sash portion of the sliding window sash. The at least one bearing is slidingly engaged with the removable track supporting the sliding sash over an entire travel range between open and closed positions preventing tilting of the sliding sash relative to the window frame.

Abstract: A shower door assembly includes a header, a door, and an elongated member. The header includes a track and a channel disposed above the track. The door is in moving engagement with the track. The elongated member is received within and slidably coupled to the channel and is configured to be moved within the channel between a first position to allow for removal of the door from the track, and a second position to substantially impede upright movement of the door when the door is moved along the track between an open and a closed position.

Abstract: A sealing element for sealing joints and the intermediate space between an inner wall, an outer wall shell and a window frame includes (1) a first block-shaped sealing element section of a first flexible foam having a first indentation hardness and (2) a second web-shaped sealing element section which projects from an edge area of the first sealing element section, the second sealing element section including at least one sealing strip which is a second flexible foam having a second indentation hardness, the first indentation hardness being at least 1.5 times greater than the second indentation hardness.

Abstract: The fenestration structures include external frame segments facing the interior and exterior surfaces of a building wall, and an internal frame segment “sandwiched” between the external frame segments. The external frame segments are made from a relatively hard, dense and/or resilient material, such as hard wood, while the internal frame segment is made from paulownia which is a moisture-resistant, dimensionally stable thermal barrier material. The external frame segments therefore provide durable and attractive exterior and interior surfaces of the fenestration frame, while the internal paulownia segment provides superior resistance to thermal transfer across the frame, while also remaining dimensionally stable across a variety of moisture and temperature levels. Internal paulownia segments may be positioned around the entire periphery of the fenestration frame to create a comprehensive thermal barrier.

Abstract: A rear window assembly includes a glass flange positioned in a window opening. The glass flange includes a body mounting flange mounted to a body of a vehicle. The glass flange has a first mounting pad defining a first mounting area for a window for mounting a first glass variation to the vehicle. The glass flange has a second mounting pad defining a second mounting area for a window for mounting a second glass variation to the vehicle. The second mounting pad is recessed toward an interior of the vehicle. The second glass variation has a slider rail and a slider glass, while the first glass variation is devoid of a slider rail and slider glass. The glass flange selectively receives either the first glass variation or the second glass variation in the window opening.

Abstract: A convertible storage container and methods are provided for the remediation of environmentally damaged articles. The container defines an interior chamber for receiving the environmentally damaged articles therein, the container having at least one container door for closing an access opening into the container. A conversion door is removably positionable with respect to the access opening so as to close the access opening with the container door in an opened condition. The conversion door includes a conversion door panel and a plurality of access ports through the door panel for connection of ducts to permit remediation of the environmentally damaged articles within the interior chamber.

Abstract: A two-stage linked sliding door of a machine tool is provided with a first door half and a second door half movable through different strokes. Pulleys are disposed individually at two opposite end portions of the second door half, and a wire is stretched between the pulleys. The opposite end portions of the wire are secured to the door frame or the first door half by two wire tensioning springs, individually, such that the opposite end portions face each other. These two springs are juxtaposed and offset with each other so that their respective central axes do not line on the same axis.

Abstract: A buildable, collapsible and lightweight screen comprising a frame constructed with at least two longitudinal profiles, at least two transverse profiles, hollow extruded profiles and which include at least one inner groove which runs along one side, in a longitudinal direction. Each of said profiles, one or more panels of sheet material are confined within said frame along said inside groove, and connectors that align and fasten the longitudinal and transverse profiles by fasteners, connectors which act as intermediaries to avoid direct contact between these profiles.

Abstract: The present disclosure relates to a sliding door arrangement with an attenuation and retraction device facilitating soft-closing of a sliding door. The arrangement includes an attenuation and retraction device, which may be placed in the extension of a rail guiding and retaining the door, and a pin that extends from the door and interacts with the attenuation and retraction device. The pin may optionally be locked in a retracted position during mounting of the door in order to protect the pin from damage resulting from excessive side forces.

Abstract: A vertical sliding window assembly can be coupled to a flange of a vehicle. The vertical sliding window assembly includes a first fixed panel and a second fixed panel adapted to be fixed to the vehicle. The first and second fixed panels have a top edge and a bottom edge spaced from each other. First and second vertical tracks are coupled to and extends between the top and bottom edges of a respective one of the first and second fixed panels. Each of the vertical tracks have a bottom end adjacent the bottom edge of a respective one of the fixed panels. A sliding panel is movable along the first and second vertical tracks relative to the fixed panels. The bottom end of each of the first and second vertical tracks terminates between the top and bottom edges of the fixed panels.

Abstract: A linear actuator, particularly for sliding doors and for sliding doors and windows in general, comprising a supporting body, to be fixed by corresponding fixing elements between the two jambs of a door or of a door or window frame, motor drive elements being accommodated and fixed within the supporting body and being adapted for the rotation of a driving gear, which is intended to mesh with a driven rack, which in turn is fixed to a leaf of the door to be moved in translation.

Abstract: The invention relates to a device (1) for slidable devices such as sliding gates or sliding doors. In order to render possible a compact and nevertheless stable construction of the device (1), it is provided according to the invention that the device (1) has a supporting or retaining device (2) and a shorter runner rail (3) as well as a longer runner rail (4), wherein rolling elements (5) and/or sliding elements are provided on the supporting or retaining element (2), via which rolling elements and/or sliding elements the shorter runner rail (3) can be moved, and wherein further rolling elements (6) and/or sliding elements are provided on the shorter runner rail (3) and optionally on the supporting or retaining element (2), via which further rolling elements and/or sliding elements the longer runner rail (4) can be moved.

Abstract: A curved bypass door suitable for a shower or bath comprising a first door, a second door set back from the first door, and an upper track made of aluminum. In one aspect, the upper track has a lower rail adapted to receive a first roller for the first door to slide on and an upper rail adapted to receive a second roller for the second door to slide on. In another aspect, the upper track has an upper rail adopted to receive a roller for the second door to slide on and a lower rail adapted to receive and hold the first door which is fixed. Each door has a curvature such that both doors together form the curved bypass door. The upper track is curved to match the shape of the curved bypass door.

Abstract: The invention relates to a device for closing off an opening formed in a structure, comprising an essentially flat fixed part in which an aperture is defined, and at least one sliding panel which an aperture is defined, and at least one sliding panel which is guided along two rails mounted on one face of said fixed panel, between at least a closed position that closes off said aperture and an open position which uncovers said aperture. At least one of said rails at each of its ends bears a closure end piece to which a first end of a flexible or semi rigid first element is secured, the second end of which element is intended to be secured to said structure.

Abstract: The Dual (day/night) Power Window system (DPW) for automobiles is comprised of two window glasses per door. It has an outer/clear window and an inner window tinted to the automobile owner's liking. It is designed to give the occupant(s) of the automobile an instant choice on whether the occupant(s) want a clear, ambient view or if the occupant(s) wants to be protected from too much ambient light, whether the occupant is the driver or a passenger.

Abstract: A support arm for a sliding door of a mobile platform is provided and may include a first housing slidably attached to the mobile platform proximate to an opening of the mobile platform and a second housing attached to a door of the mobile platform and to the first housing. The second housing may be moveable relative to the first housing between a retracted state and an extended state.

Abstract: A hung egress window allows the operable lower sash to travel a greater distance relative to a prior art hung window in order to give more clear space height for a given size window. This additional travel distance is achieved by lowering the location of the top rail of lower sash to be substantially below the bottom rail of the upper sash except where the seating flange of the top rail seats within a gasket lined seating pocket of the bottom rail of the upper sash. Additionally, the profile of the sill is lowered so that a portion of the flanges of the glazing pocket of the lower sash visibly extend above the sill.

Abstract: A shower door assembly is provided which comprises a stationary frame, and a movable frame having a guiding groove, wherein the shower door assembly further comprises a fixing block disposed in the stationary frame, the fixing block has a channel and a cam mechanism rotatable about a portion of the fixing block, a first engaging element is provided on at least a part of a bottom surface of the channel, and the shower door assembly further comprises an adjusting block disposed in the guiding groove of the movable frame, the adjusting block has an extension part insertable into the channel of the fixing block, the extension part has a second engaging element, wherein when a force is applied to the extension part by the cam mechanism, the first and second engaging elements are engaged such that the stationary and movable frames do not displace.

Abstract: A mounting (28) for a side panel (26) of a weighing machine (10) has two rails (30, 32) which lie opposite one another and extend substantially parallel to each other. The side panel (26) is guided between the rails and thereby moves between a closed position and an open position. A stop (46) on the first rail (30) co-operates with the side panel (26), such that the completely open position is defined, and the second opposite rail (32) lies opposite the first rail (30) with such a spacing that the side panel (26), when being located in the open position, can be moved away by lifting of the rear edge (29) of the side panel (26) over the stop (46), but the opposing front edge (27) of the side panel (26) cannot be lifted or can only be lifted insignificantly.

Abstract: A sliding door assembly is provided comprising a first door having a tortuous leading edge, a door frame, a guide track, and a member having a complementary tortuous edge to that of the door. The drive assembly includes magnets to drive the door between open and closed positions.

Abstract: A door construction made of panel sections hinged to one another at end faces so as to be folded to overlie one another for transport and unfolded to a co-planar configuration at a point of assembly. After unfolding, braces are applied to the end faces to maintain the co-planar configuration. Gaskets are provided between facing surfaces of the two door sections, and a gasket may be provided around the perimeter of the door and the gaskets span the seam. A wire may also be provided that spans the seam and remains intact before, during, and after unfolding.

Abstract: The invention relates to a mechanism for converting a rotary motion originating from a rotary energy generator (1) into a longitudinal motion of a carriage (25) that is adapted for attachment to a covering, such that said rotary motion will result in a longitudinal displacement of the covering, the mechanism comprising one or more spindle sections (2, 3, 4, 5) drivingly connected at a longitudinal end of at least one of said spindle sections via a gear means (7; 9; 22, 23, 24, 27) to said rotary energy generator (1). The invention further relates to a drive system for coverings comprising mechanisms according to the invention. The invention further relates to a covering system for covering a surface portion such as a window, glass door or the like, of a building.

Abstract: A sliding door assembly for use with a tub or shower enclosure, said assembly comprising a rod, having a first end and a second end extending along said enclosure; at least one door, having a top, bottom, first end, second end, first surface and second surface; at least one roller attached to said door at a predetermined position and slidably engaging said rod; a stopper attached to said rod, at a predetermined position; a striker attached to said door, at a predetermined position; said striker further comprising at least one striking member; said stopper further comprising at least one striking member receiver; wherein when said door is in a first position, said at least one striking member and said at least one striking member receiver are not engaged and when said door is in a second position, said at least one striking member and said at least one striking member receiver are engaged, preventing said at least one door from substantial horizontal and vertical movement along said rod.

Abstract: A door system comprises a door panel, a support member, and a pivoting vertical plate. The door panel comprises a plurality of discrete rigid insulation pieces interposed between flexible layers. An outer skin encompasses the rigid insulation pieces and the flexible layers. The door panel is secured to the support member by the outer skin, such that the outer skin bears the weight of the door panel. The vertical plate is secured to a trailing side of the door panel. The vertical plate includes keepers that selectively engage hooks extending from a casing positioned at a doorway. The rigidity of the door panel depends on the pivotal position of the vertical plate relative to a plane defined by the door panel. The door panel provides sufficient flexibility to withstand impacts from objects and vehicles yet also provides sufficient rigidity to insulate a cold environment from a warm environment.

Abstract: A system for reducing an effective weight of a horizontally sliding object, wherein the object such as a door or window is retained in a track that allows substantially horizontal movement along a predetermined path. The door has an upper surface with a longitudinal cavity therealong, a metallic channel is disposed within the longitudinal cavity, and the channel receives a plurality of permanent magnets. The system also includes an elongate strip coinciding with the predetermined path and positioned adjacent the upper surface of the door. An adjustment mechanism is also provided for releasably adjusting the distance between the magnets and the elongate strip.

Abstract: An adjustable support assembly is provided that includes a front left base support, a front left lower elongated support and a front left upper elongated support. Also included are a front right base support, a front right lower elongated support, and a front right upper elongated support. Such supports are designed to be placed in a structural wall, particularly the structural wall of the cooling tower, wherein an opening would be cut in the wall to receive an entry door. The support assembly provides structural integrity from the lower section of the cooling tower to the upper section of the cooling tower, and allows the door opening to be cut out without loss of such structural integrity.

Abstract: Disclosed is an easy-to-construct window apparatus including to assure easy construction and superior drainage ability. The window apparatus includes a window frame fixing unit including a bottom plate, vertical plates formed at lateral ends of the bottom plate and a rack plate formed at each vertical plate, a window frame support unit including a seat plate on the rack plate, a support plate configured to be supported on the bottom plate, fastening pieces protruding from the seat plate, and a holding groove formed in each fastening piece, a rail unit including a horizontal plate provided with a rail and a coupling piece, and a holding ridge formed at the coupling piece so as to be coupled with the holding groove, a window drive unit including a press-fit structure to be press-fitted into a window, and water discharge holes perforated in the aforementioned units.

Abstract: A vehicle door structure 1 comprises a slide door 6 for opening and closing a front region of a rear door opening, a swing door 7 for opening and closing a rear region of the rear door opening in cooperation with the slide door 6, a middle slide rail 17 attached to the swing door 7 so as to extend longitudinally of the vehicle body, a guide body 18 adapted to be guided by the middle slide rail 17 when opening and closing the slide door 6, and a movable arm 34 rotatably attached to the slide door 6 and adapted to engage the guide body 18. The movable arm 34 is movable longitudinally of the vehicle body with respect to the guide body 18.

Abstract: A safety apparatus of an automatic door may include a body mounted with an entrance, a door slidably mounted on the body and opening or closing the entrance, and a safety device including a safety part slidably mounted at a side of the door and an elastic part mounted at the side of the door to elastically support the safety part, wherein the safety part may be slidably mounted on an upper portion and a lower portion of the side of the door, respectively, and includes upper and lower moving members slidably mounted on the side of the door and elastically supported by the elastic part, and a rotating member rotatably mounted between the upper and lower moving members.

Abstract: A sliding window assembly for a vehicle includes a frameless fixed portion having first and second glass window portions and includes a sliding portion having a glass window panel. The sliding window assembly is a horizontal sliding window assembly and is configured for mounting at an opening of a bodywork of the vehicle. Upper and lower track members are adhesively attached at the rear surface of the first and second fixed glass window portions and no portion of the upper and lower track members is in contact with the front surface of the first and second fixed glass window portions. A glide member is longitudinally movable along the lower track member to facilitate movement of the glass window panel between its opened and closed positions. The fixed portion is adhesively bonded to the bodywork at a frameless periphery of the fixed portion that faces the interior of the vehicle.

Abstract: A pre-formed insert with stable dimensions for mechanical insertion into a hollow member and that reduces the Nusselt number and convection across the hollow member. The insert may be formed of a low heat conducting material like PVC and have extensions and internal voids that impede convection in the hollow and conduction through the insert. The inserts may be used in stiles, rails, heads and sills of aluminum windows and doors. In one embodiment an insert is received in an open hollow and may cooperate with an insert in a frame hollow to decrease convection at the head end of a sliding window or door. An insert may be placed within the hollow of a window or door beside a roller assembly.

Abstract: A sliding door system includes at least one sliding door having an upper and lower sliding-door mount, as well as an upper and lower guide rail for displaceably receiving the upper and lower sliding-door mount, respectively. The guide rails extend parallel to each other and each have a clear inner width that is at least twice as large as the thickness of the sliding door. The upper and lower sliding-door mounts are each at most half as wide as the clear inner width of each guide rail, allowing moving the sliding door into recessed and lifted-out positions, each constituting a stable state. By overcoming a resistance force, the sliding door can be moved between stable states. The sliding door system is lightweight and robust, and enables sliding doors to be displaced freely without a particular sliding door being assigned in a fixed manner to a particular opening to be covered.

Abstract: A retainer bar assembly for use with a door or window includes a retainer bar configured for slidable coupling with a fenestration frame and slidable coupling with a sash. A retainer bar handle is coupled with the retainer bar. A retainer bar fastener assembly includes a movable bolt movably coupled with the sash. The movable bolt is movable between a fastening configuration where the bolt is coupled with at least one of the retainer bar and the retainer bar handle and the retainer bar is fixed in an installed orientation relative to the sash, and a releasing configuration where the bolt is decoupled from one or more of the retainer bar and the retainer bar handle and the retainer bar is slidable relative to the sash.

Abstract: A structured-core laminate panel can be made in an efficient, structurally sound manner without the use of adhesives (film or liquid forms) using materials with different melt or glass transition temperatures. In one implementation, a manufacturer positions one or more resin substrates about a structured core, which comprises a relatively high melt or glass transition temperature compared with that of the one or more resin substrates. The manufacturer heats the assembly to at least the glass transition temperature of the resin substrates, but not to the melt or glass transition temperature of the structured core. This allows the one or more resin substrates to melt and bond (mechanically, chemically, or both) to the structured core on one side (or inner surface), while maintaining a substantially planar or original conformation on an opposing side (or outer surface).

Abstract: A vehicular window assembly includes a frame, a fixed window panel bonded to a lower frame portion and a movable window assembly. The side frame members of the movable window include upper and lower guide elements that are slidably received in respective channels along opposite portions of the frame. The channels are configured to move the movable window along the fixed window panel when the movable window assembly is at least partially opened and to move the movable window to a position where the movable window panel is generally coplanar with the fixed window panel when the movable window assembly is closed. When the movable window is in its closed position, a seal sealingly engages an inboard surface of the side frame members and an inboard surface of the upper frame member and an inboard portion of an upper perimeter region of the fixed window panel.

Abstract: A modular fenestration system includes a collection of standardized functional units such as double hung window units, casement window units, picture window units, transom units, and the like. The functional units all share common sightlines, common glass set-back, common interfaces, common design language, and are sized according to a unique modular or incremental sizing grid. The sizing grid specifies individual window units in terms of the rough opening size in which they are designed to be installed. Individual functional units are easily combinable in a vast array of combinations to create a large number of possible composite window units. The system also includes a collection of interior and exterior trim units, grilles, and hardware in various architectural styles that can be attached to installed standardized functional units via the common interfaces to match the architecture of a particular home or building.

Abstract: A window assembly for a vehicle includes a glass assembly, a lift plate, and an actuator mechanism coupled with the glass assembly by the lift plate. The glass assembly has an aperture formed therethrough, and the actuator mechanism moves the glass assembly by applying a load at the aperture. A fastener may extend at least partially through the aperture from a shoulder at one side of the glass sheet to an end at an opposite side of the glass sheet. The window assembly may also include a coupling layer, such as an adhesive layer, between the fastener and the glass sheet. The window assembly can be constructed in a relatively compact configuration to save space within a vehicle door or panel.

Abstract: The attachment device (1) for attaching a glass pane (200) to a carrier (100) of a window regulator (51) comprises a holder (11) arranged for being mounted in a hole (201) of the glass pane (200), the holder (11) comprising a first part (12) configured to be arranged on a face of the glass pane (200) and a second part (13) configured to be arranged on another face of the glass pane (200), said first part (12) and said second part (13) being attached to one another by means of at least one hinge (17), said holder (11) further comprising coupling means (16) for coupling and retaining said first part (12) and said second part (13) to one another, the attachment device (1) further comprising a flexible retainer (31) which can adopt an assembly state and a retaining state.

Abstract: A motor vehicle sliding door that may be supported by a pillar of the motor vehicle and having a sliding door assembly with a self-adaptive carriage. A self-adaptive carriage can allow for pillar attachment of the door to the vehicle body at one or more of the A, B, or C pillars with reduced movement efforts and increased stability while accommodating manufacturing tolerance variation over large scale production runs.

Abstract: A door is secured in spaced relation to a wall panel by a support assembly which includes a tubular housing secured to the wall and an elongate guide bar secured to the door at its bottom. The door is retained, at its top, between extruded aluminum abutments which allow the door to slide with respect to the wall panel, but prevent the door from pivoting about the guide bar.

Abstract: A door assembly for a vehicle is provided and may include a door selectively movable relative to the vehicle between an open state and a closed state. A first track may slidably support the door relative to the vehicle between the open state and the closed state and a second track may be spaced apart from the first track, may slidably support the door relative to the vehicle between the open state and the closed state, and may include a first track portion and a second track portion. The first track portion may be operable to slide relative to the second track portion when the door is moved a predetermined distance relative to the vehicle.