Abstract: A gliding or rolling board, having a length measured along a longitudinal direction between a first end and a second end, a width measured along a transverse direction between a first slide and a second slide, and a height measured between a bottom and a top, the board including a first zone for receiving a foot or a boot, and a second zone for receiving a foot or boot. Between the receiving zones, the board includes a first flexing zone located toward the first receiving zone, as well as a second flexing zone located toward the second receiving zone.

Abstract: An assembly for binding a boot to a ski including a front retaining element that is releasable when the forces to which the front retaining element is subjected are greater than the pretensioning value of a first spring, a rear retaining element that is releasable when the forces to which the rear retaining element is subjected are greater than the pretensioning value of a first spring, and an additional release device that is electronically controllable and includes a mechanically controllable locking mechanism.

Abstract: An assembly for binding a boot to a ski, including a front retaining element that is releasable when the forces to which the front retaining element is subjected are greater than the prestress value of a first spring, a rear retaining element that is releasable when the forces to which the rear retaining element is subjected are greater than the prestress value of a second spring, the rear retaining element being mounted on a slide, and an electronically controllable additional release device. The additional release device includes a rotatable actuation mechanism, in the form of an electric motor. The additional release device includes a bar fixed to the rear retaining element or to the front retaining element, and is capable of moving longitudinally between an open position and a closed position, in reaction to the actuation of the additional release device.

Abstract: A device for receiving a foot or a boot on a sports apparatus, the device including a rear support element, the rear support element having a support surface adapted to support the back of the lower part of a user's leg, as well as a free surface opposite the support surface. The rear support element includes a first wall located on the side of the support surface, as well as a second wall located on the side of the free surface, the first wall including a traction-resistant material, the walls being affixed to one another.

Abstract: Disclosed are systems and methods for efficiently and effectively supporting sporting equipment such as a snowboard. Also disclosed are systems and methods for removably or permanently attaching an apparatus to a snowboard boot, sole, or a sub-component thereof such that the apparatus may be used to support the weight of sporting equipment such as a snowboard while a user of the sporting equipment is seated (e.g., while riding a chairlift). Systems and methods for fabricating an integral support within a boot, sole, or a sub-component thereof are also disclosed. The aforementioned systems and methods include after-market items affixed to commercially-available boots, soles, or sub-components thereof by a snowboarder, snowboard professional, or the like, or, alternatively, such systems and methods may be incorporated by a boot or sole manufacturer during manufacture of the boot, sole, or a sub-component thereof. Both permanent and removable systems and methods are disclosed.

Abstract: The present utility model disclosed a main support frame, which has two bushings each set on the right and left side of said main support frame respectively; two supporting pipes, each inserted in one of the bushings of the main support frame; two P-shaped armrests, each connects with one of the supporting pipes; two pairs of front-wheel assembly and rear wheel assembly, each pair of front-wheel assembly and rear wheel assembly is connected with the main support frame; and a seat component comprising a seat body and a folding mechanism, said seat component can be folded in the middle and is set between the left side and right side of main support frame. Said folding mechanism consists of a first branch pipe and a second branch pipe, which hinge joint with each other in the middle, one end of the first branch pipe and the second branch pipe hinge joint with the left side and right side of the main support frame respectively, the other end connect with the two ends of said seat body respectively.

Abstract: Product trolleys include a base, a sling assembly, and a roller assembly. The base includes a first sidewall, a second sidewall opposing the first sidewall, and an endwall extending between the first and second sidewalls. The base defines an inner surface, a first open end, a second open end opposite the first open end, and a top opening opposite the endwall. The base includes a spring action between the first sidewall and the second sidewall, such that the base is configured to be flexed to receive and releasably secure the product between the first and the second sidewalls. The sling assembly is secured to the base and includes a substantially flexible body formed of sheet material. The roller assembly is secured to the base proximate the endwall.

Abstract: A trailer for moving a load, the trailer including a main supporting component for supporting the load, the main supporting component defining a reference plane extending thereacross. The trailer also includes a pair of wheel assemblies. Each of the wheel assemblies includes a wheel; a wheel support removably attachable to the main supporting component; and an axle rotatably mounting the wheel to the wheel support. When the wheel supports are attached to the main supporting component, the wheels are in a substantially parallel relationship relatively to each other; each supported in a cantilevered configuration by a respective one of the wheel supports, the wheels being substantially perpendicular to the reference plane; and each supported in a substantially spaced apart relationship relatively to the main supporting component in a direction substantially perpendicular to the reference plane.

Abstract: A technique is provided effective in improving rider restraint performance of an airbag in an airbag system to be mounted to a motorcycle. In one form, an airbag system to be mounted to a motorcycle includes an airbag restricting device for restricting the deployment of the airbag toward the rider's head at the early stage of the deployment of the airbag in the event of a head-on collision of the vehicle.

Abstract: A technique is provided effective in improving rider retraining performance of an airbag in a motorcycle airbag system to be mounted to a motorcycle. In one form, an airbag system to be mounted to a motorcycle is constructed such that the way of folding the airbag is devised to set the fold release resistance of the rider-side airbag part lower than that of the other part of the airbag in the early stage of the airbag deployment.

Abstract: A technique is provided effective in improving rider retraining performance of an airbag in a motorcycle airbag system to be mounted to a motorcycle. In a first form, an airbag system to be mounted to a motorcycle restricts the deployment of the airbag toward the rider's head in an early stage of the inflation of the airbag in the event of a head-on collision of the motorcycle using a webbing that tethers the airbag to the motorcycle.

Abstract: Internal door cladding with an airbag for head and/or shoulder side-collision protection in the event of a side collision and/or rollover, the airbag directional shoot for the airbag being provided with an outlet opening for deploying the airbag in the direction of a head and/or shoulder area and with at least one flap for closing the outlet opening.

Abstract: An air bag 1 is provided. At a vehicle side impact, the air bag 1 unfolds from an upper part of a vehicle body downwardly. The air bag 1 includes an airbag body 10 having an inside foundation cloth 8a and an outside foundation cloth 8b, and a pair of inner-cloths 19a, 19b arranged in the airbag body 10. The inside inner-cloth 19a is joined to the outside inner-cloth 19b through two inner junctions 21, 21 separated from each other in a fore-and-aft direction of the vehicle. The inner-cloths 19a, 19b have front ends, rear ends and intermediate portions between the inner junctions 21, 21, all of which are joined to the foundation cloths 8a, 8b through overlapping junctions 22a, 22b. In arrangement, the overlapping junctions 22a of the inside inner-cloth 19a are shifted from the overlapping junctions 22b of the outside inner-cloth 19b forwardly. Consequently, triple-layer tubular expansion chambers 25a, 26, 25b are defined in the airbag body 10, allowing a passenger's head to be received certainly.

Abstract: A side airbag apparatus for vehicle has an airbag and an inflator. An upper chamber, a lower chamber, and an intermediate chamber are defined by a seam in the airbag. When the airbag is deployed, the upper chamber corresponds to a shoulder of an occupant, the lower chamber corresponds to a lumbar region of the occupant, and the intermediate chamber corresponds to a thorax of the occupant. The seam guides gas from the inflator to the upper and lower chambers such that the upper and lower chambers are substantially simultaneously inflated, and the intermediate chamber is inflated after a delay. The thickness of the intermediate chamber is less than the thicknesses of the upper and lower chambers. As a result, the occupant of the vehicle is effectively protected.

Abstract: When a gas generating agent 9a inside a first combustion chamber 5a is burnt, a gas generating agent 9b is prevented from being burnt by function of a metal thin plate 11 closing a communication hole 10 with a second combustion chamber 5b. A cup 1190 having a hole 1191 is covered on an igniter 1112, and the flame thereof advances into a transfer charge 1116 straightly in a narrow width. Accordingly, since the transfer charge 1116 is burnt completely, sufficient flame for burning a gas generating agent 1109 can be generated securely. A communication hole 3010 between a first combustion chamber 3005a and a second combustion chamber 3005b is closed by double-layered seal tape 3011 laminated through an adhesive layer. After activation, the seal tapes 3011 are not ruptured due to increase in the internal pressure of the first combustion chamber 3005a, but they are peeled off easily due to increase in the internal pressure of the second combustion chamber 3005b.

Abstract: An apparatus (10) for helping to protect an occupant of a vehicle includes a housing (20) including a vent opening (70). An air bag (14) is inflatable to deploy away from the housing (20). An inflation fluid source (26) provides inflation fluid for inflating the air bag (14). A vent member (80) has a closed condition blocking inflation fluid flow through the vent opening (70) and an open condition permitting inflation fluid flow through the vent opening. A first tether (114) is configured to release the vent member (80) for movement from the closed condition when the air bag (14) has deployed a first distance away from the housing (20). A second tether (140) is configured to place the vent member (80) in the closed condition when the air bag (14) has deployed a second distance away from the housing (20), the second distance being farther away from the housing than the first distance.

Abstract: Systems for inflating, and venting inflation gas from, objects are detailed. The systems are especially, although not necessarily, adapted for use with vehicle air bags and allow varying amounts of gas to be evacuated from the bags. The bags may include at least one vent hole through their walls and need only one closure band or membrane per hole.

Abstract: A steering column is provided column including a bracket adapted to enable the steering column to move as desired by an operator and a clamping system adjacent to the bracket. The clamping system includes a threaded member. A threaded clamping stud extends through the bracket. The threaded clamping stud is selectively coupled to the threaded member of the clamping device. A transmission is coupled to the threaded member. A motor is coupled to the transmission. The motor is operable to drive the transmission to rotate the threaded member in a first position to unclamp the bracket to enable the steering column to move based on receipt of an input from the operator.

Abstract: A guide loop for a safety belt on motor vehicles, including a guide element provided with a guide slit for the safety belt, which is fixed to a vehicle by means of a fixing screw, and an adapter with a displacement body for limiting the slit width of the guide slit. The adapter is coupled to the inside of the fixing hole of the guide element and includes an opening penetrated by the fixing screw inserted through the fixing hole. The fixing hole of is formed by a boring, with a cross-section slightly larger than the external diameter of the screw in order to maximize the overlap between a bearing surface of the guide element and a head of the fixing screw. In addition, a number of grooves are distributed around the boring's circumference. When the adapter is mounted, the grooves accept fixing arms of the adapter.

Abstract: It is hereby described an articulated pole for ski slopes, of the kind including a ferrule to be driven into the snow or into the ground and an above-ground portion consisting of a tubular element connected to the base to the said ferrule by means of a joint which allows the said tubular element to bend after being hit, comprising strengthening elements of the free end portion of the said tubular element, consisting of a strengthening element fitted to the tubular element itself, at the top end or the free end portion of the pole. Preferably, the said strengthening element consists of an extension of the cap which closes the top end portion of the pole.

Abstract: A vehicle, such as an all terrain vehicle, includes a saddle type seat for the rider to sit on, and a fuel tank arranged below the seat. The fuel tank includes a fuel inlet positioned in front of the seat, in a traveling direction of the vehicle. The all terrain vehicle provides a comfortable ride to a rider by providing the fuel tank in the center of the vehicle, while mounting a fuel tank that is convenient to access.

Abstract: A process for the production of image cards including printing of a sheet so as to obtain a printed sheet with a plurality of images disposed in a plurality of windows, overprinting of decorations on said image windows, deposition of a protective layer on said decorations so as to fix them and avoid removal of the material from the decorations and punching of said printed sheet so as to obtain a punched sheet with microperforations along the perimeter of said windows containing the image.

Abstract: A return label and tracking system is disclosed. The label of the present invention is a multi-layer label having a backing, a middle layer shipping label, and a top layer. The backing is pealed away to expose a permanent adhesive to affix the label to a box. The top layer is removably adhered to the shipping label. When a customer is ready to ship back an item, such as a depleted toner cartridge, for recycling or repair, the top layer can be removed to expose the shipping label, and the box can be shipped via a courier service or mail service. The shipping label is a variable label. The tracking system enables the receiver to determine which customer sent the item by having a record of which shipping labels were assigned to which customers. Thus, the customer can be credited for items returned.

Abstract: An unfoldable card (1) comprising first and second portions (2, 3) which are moveable in relation to each other and which are joined to each other by an elastic means (4), said card selectively adopting a closed configuration wherein the elastic means (4) is stressed and the first and second moveable portions (2,3) are moved towards each other, and an open configuration wherein the elastic means is de-stressed and the first and second moveable parts (2,3) are moved away from each other. The card is provided with a blocking means (5) enabling the card to be locked in the closed configuration thereof, said blocking means (5) comprising means causing the card to pass automatically in a delayed manner from the closed configuration to the open configuration.

Abstract: A locking device for a pair of mating air brake hose coupling members includes a housing with a first aperture for attachment to one air brake hose coupling member and a second aperture for attachment to a hose support member which is adjusted to provide a predetermined clearance between the air brake hose coupling and a rail track. A locking pin is reciprocally disposed within the housing and is being urged by a resilient member in one direction for preventing undesirable complete rotational uncoupling of such pair of mating air brake hose coupling members. The locking pin is manually movable in the opposite direction during coupling and uncoupling under normal operating conditions.

Abstract: Improvement in a quick disconnect coupling that includes a tubular coupler half, having a radially outwardly-directed roller on an outer surface portion thereof; a tubular nipple half, having a push-to-connect mechanism, including a cup-shaped member, concentrically surrounding a nipple body portion, this mechanism including a locking device having a basically L-shaped contoured slot including a helically-directed ramp inlet and a locking slot portion; the improvement comprising that the push-to-connect mechanism includes the rotatable journaling of the cup-shaped member, for limited rotational pivoting relative to the nipple half; this mechanism also including a biasing member for concurrently normally biasing the cup-shaped member to an at-rest position relative to the nipple body.

Abstract: A fluid assembly is provided having a fluid connector for coupling a fluid conduit and a tuning cable to form a fluid tight, pressurized connection for energy attenuation. The connector includes two end portions defining ports and an intermediate portion defining a fluid passageway extending between the two ports. One of the end portions includes an end form over which the tuning cable is disposed. A fluid conduit is received over the other end portion and an inturned lip of the conduit is deflected outward and rides a conically tapered section until it is received within a groove defined in the intermediate portion between the tapered section and a radially outwardly extending flange.

Abstract: A coupling for connecting conduits is provided, including a first element having a first mating member and a second element having a second mating member. The first element and the second element selectively securingly engaging each other. The first mating member and the second mating member sealingly connecting the conduits. An inner member is disposed at least partially within the second element, and a compression member is disposed about the first element, the compression member cooperating with the inner member for forcing the first element and the second element together, wherein the first element, the second element, and the inner member cooperate to resist pulling apart of the coupling.

Abstract: Threaded connections including a pin member and a box member and a sealing metal. The pin member and the box member have wedge threads formed thereon, and the sealing metal is disposed between the wedge threads of the pin member and the box member. The sealing metal has a melting point lower than a tempering temperature of the pin member and the box member.

Abstract: A joint includes a joint main body, a sleeve and a nut. The joint main body has a joining hole and an external threaded part. The nut is threaded onto the external threaded part in a threaded state in which the pipe and the sleeve are inserted through the joining hole. The nut joins the pipe to the joining hole via the sleeve. The sleeve is tightly fitted to the pipe and the joining hole by the threading of the nut to induce deformation that expands radially outward. The deformation prevents insertion of the sleeve into the joining hole to a specific position in an unthreaded state in which the pipe and the sleeve have been pulled out from the joining hole.

Abstract: Control features for a wind turbine that control the turbine over a range of wind speeds and under triggering conditions with reduced noise, cost, and reliability issues associated with other such controls. Control is accomplished via control electronics, which adjust the torque produced by the electrical output generation device (e.g., alternator) within the wind turbine. During normal operation, torque is adjusted for optimum aerodynamic performance and maximum output of power. In winds above rated power, the control circuit regulates torque to lower aerodynamic performance, as necessary to maintain desired power level output. In triggering conditions, such as during simultaneous control circuit failure and loss of some portion of the electrical output generation device in extreme winds, wind turbine control is accomplished by increasing torque (e.g., via a separate controller) from the electrical output generation device via shorting of windings, so as to cause retardation of blade rotation.

Abstract: A combined sealing system for use with a combination of a panel and a frame includes a first sealing system and a second sealing system. The first sealing system is positioned within a first side of the frame, and the second sealing system is positioned within a second side of the frame separate from the first side of the frame. The first and second sealing systems have a locked configuration and an unlocked configuration upon the panel being positioned within the frame. The panel pivots relative to the frame, and the first sealing system is a reciprocal motion sealing system.

Abstract: The invention concerns an anti-panic bar comprising a fixed part (3) including a lock controlling element (5), and a support bar (4) mounted pivoting on said fixed part (3) about a longitudinal axis, between an inactive position wherein said support bar (4) takes up a position spaced apart from said fixed part (3) and an active position wherein said support bar (4) takes up a position closer to said fixed part (3) and wherein said support bar (4) activates said lock controlling element (5). The invention is characterized in that said support bar (4) is an extruded profile binged about said longitudinal axis through a pivot point (40).

Abstract: A door latch system for an automotive vehicle uses a push-pull cable linked to a lock cylinder and to a latch to move the latch assembly into the locked position while simultaneously blocking the latch's lock/unlock lever from moving into the unlocked position.

Abstract: A rotary latch for selectively locking a closure, such as a tonneau cover, is provided with a joystick or toggle release lever. The joystick release lever enables the rotary latch to be installed in any position with respect to a remote handle because the joystick can be pulled in any direction, 360 degrees, to release the rotary latch. The joystick includes a trapped base supporting a spherical portion that is nested in a circular opening in the housing of the latch. The joystick is spring loaded, and is movable about its central axis in any direction, causing the base to pivot against the inside of the housing. The base of the joystick is positioned over a spring-loaded catch locking the rotary latch. As the base of the joystick rotates against the inside of the housing, it depresses the spring-loaded catch, releasing the rotary latch.

Abstract: The invention relates to a window comprising a window frame and a casement which can be displaced in relation to the window frame, mountings which are arranged between the casement and the window frame and which are used to displace the casement in relation to the window frame, and a handle which is disposed on the casement. The handle comprises control elements and/or sensors and a handle part which can be displaced, particularly rotated, on the casement in various positions of the handle which correspond to different operational positions of the casement. The handle is connected in a wireless manner or via electric lines to electromagnetic or electromechanical locking elements between the casement and the window frame, and/or to electromagnetic or electromechanical functions, in particular coupling elements for at least one or several mountings and/or to an electromechanical drive device which is used to open or close the casement.

Abstract: A door handle lock assembly includes a housing configured to be attached to a door. A interconnecting member is rotatably and axially movably supported by the housing. A first handle is fixed to the interconnecting member at a first end of the interconnecting member and a second handle is fixed to the interconnecting member at a second end of the interconnecting member. The door is between the second handle and the housing. The door handle lock assembly is changed from a locked condition to an unlocked condition by axially moving the interconnecting member from a first position to a second position and then rotating the interconnecting member.

Abstract: An interchangeable handle assembly includes a spindle, a coupling member removably coupled to the spindle, and a handle. Two grooves are defined in an outer circumferential face of the spindle. The coupling member includes two arms and an intermediate section between the arms. The arms are engaged in the grooves of the spindle. Each arm includes a coupling section on a distal end thereof. The handle includes a shank having a hole for removably coupling with the spindle. A circumferential wall delimiting the hole of the shank includes two coupling sections for respectively coupling with the coupling sections of the coupling member when the handle is coupled with the coupling member.

Abstract: An apparatus for waste collection and disposal comprising a tube portion which includes a longitudinal axis, a first end defining a first opening, a second end defining a second opening, an outer side, and an inner side defining a channel between the first and second ends. The apparatus for waste collection and disposal also comprising a scoop portion coupled to the first end of said tube portion, a plurality of clips coupled to the outer side of said tube portion, and a handle portion coupled to the outer side of said tube portion.

Abstract: A spatula having a handle and a blade extending from the handle. The blade has at least one curved, convex section, along the blade's length. The curved, convex section forms a line that is not aligned with the handle's longitudinal axis.

Abstract: A lifting device (102) comprising handle means (16) and at least two pivotably connected frame members (104) adapted to pivot between a first, open, configuration (02) and a second, closed, configuration (03), wherein at least a portion of inner walls of the at least two frame members (104) form a gripping surface, which gripping surface is adapted to lie substantially parallel with side walls of an article to be lifted (01) when in the second, closed, d onfiguration (03).

Abstract: The slot machine baton or stick includes an engagement head attached to a distal end of an elongated shaft, with a gripping handle attached to a proximal end of the elongated shaft. The slot machine baton or stick allows a user to control a game machine even when the user is positioned a distance away from the game controls. The user grips and moves the gripping handle to remotely move and control the engagement head, which may be weighted, in order to releasably engage and contact the game controls. The user may actuate the game controls even when seated without having to change bodily position. The head and the handle are removably attached to the shaft to interchange parts to alter the length, shape, configuration, and weight of the baton or stick.

Abstract: A vacuum pick-up device 20 includes a device body 22 having a pick-up tip opening 78 to which vacuum pressure is supplied. The vacuum pick-up device 20 further includes a mechanical release assisting device 36 that assists in the release of a grasped object contemporaneously with or slightly subsequent to the cessation of vacuum pressure. A manifold 38 may be included to efficiently and effectively supply vacuum pressure to the device body 22 from a vacuum pressure source.

Abstract: A grappling hook blank for forming a grappling hook having a shaft, a plurality of arms and a connecting member. The grappling hook blank includes a piece of material having a shaft portion, a plurality of arm portions, and a connecting member portion. The shaft portion forms the shaft of the grappling hook. The plurality of arm portions forms each of the plurality of arms of the grappling hook. Each of the plurality of arms of the grappling hook is formed by moving each of the plurality of arm portions outwardly from the grappling hook blank. The connecting member portion connects the shaft portion and the plurality of arm portions wherein the connecting member portion forms a connecting member of the grappling hook such that the connecting member of the grappling hook connects the shaft and the plurality of arms of the grappling hook.

Abstract: An expandable shopping bag carrier includes two cylindrical tubes telescoping within one another to expand and contract as needed. At respective outer ends of the carrier are radially extending annuli that serve to retain handles of conventional shopping bags thereon whilst a middle portion of the carrier is grasped by a hand, leveraging the weight of the shopping bags and providing a more ergonomically favorable surface to grasp. The carrier can include advertising and be made of an inexpensive plastic material so as to be suitable for free distribution by stores.

Abstract: An auxiliary storage system for an automotive vehicle includes a movable unshaped bulkhead adapted to be carried upon a load floor of a vehicle, a movable cover for engaging an upper portion of the bulkhead, and a lock mechanism for selectively locking the removable cover to the bulkhead.

Abstract: An expandable trailer comprising a chassis, at least one pair of extendable supports, at least one pair of horizontal floor sections and at least one pair of floor elements. Each support is extendable laterally outwardly to a respective side of a central longitudinal axis of the chassis. The horizontal floor sections of each pair of horizontal floor sections are spaced apart laterally and each have an outer rail which is coupled to a corresponding one of the supports. The floor elements are pivotally coupled to each other and to the floor sections. Upon extension of the extendable supports from a retracted position to an open, extended position, the horizontal floor sections move laterally outwardly to extend from the chassis and the floor elements move from an upright vertical arrangement to an arrangement where the floor elements lie in horizontal alignment with the floor sections.

Abstract: A tailgate for a pickup truck or other vehicle. The tailgate is convertible to a loading ramp to facilitate access to the cargo-holding area of the vehicle. The tailgate includes at least one extensible hook member on one side edge of the tailgate and a panel extensible from the other side edge of the tailgate. In use, the tailgate is removed from the truck, the hook member is extended, the panel is extended, and the hook member is engaged with a rear edge of the cargo-holding area with the tailgate and extended panel extending rearwardly to define the ramp.

Abstract: A land, air or sea vehicle having a transport compartment for accommodating cargo and/or seats and comprising at least one row of seats disposed next to one another in the longitudinal axis of the vehicle, and oriented transverse to the direction of movement of the vehicle, is provided in a central row of the transport compartment. Mesh frameworks of textile straps are suspended between roof and floor surfaces of the transport compartment and oppositely disposed side walls that extend in the direction of movement. Each seat is individually secured to one of the mesh frameworks which is secured, under tension, to the vehicle. Each mesh framework is comprised of two transverse straps and two vertical straps. The straps are spaced from one another by the width of the seat. The transverse straps are suspended between the side walls in the vicinity of the roof, and the vertical straps are suspended between the roof and floor.

Abstract: A slide rail structure of a vehicle for sliding a seat relative to a vehicle floor can include a rail member having an upper opening portion, a slide member, and cover members disposed on the rail member. The rail member can also include lateral portions, upper portions and downward extending portions. Each of the cover members can include a fixed portion and a cover portion. The fixed portion further can include an attaching portion attached to the rail member, and a protruding portion that protrudes into the upper opening portion. The cover portion can be positioned upward of and spaced apart from the protruding portion, so as to normally cover the upper opening portion of the rail member without contacting the protruding portion. The cover portion can also contact the protruding portion so as to be restricted from being deformed downward when the cover portion is moved downward.