Abstract: The invention discloses a transporting wheel structure of storage and luggage container. Particularly, the transporting wheel structure is applied at a lower portion of a container for facilitating movements of the container. Rollers of the transporting wheel structure can be pushed out for use or completely hidden when tucked in, and are prevented from staining clothes with dirt thereon when the container is lifted. The invention is characterized that, using relationships between inclined surfaces of triangular push members and vertical push members, the rollers can be pushed out for use or completely hidden when tucked in, thereby providing a pleasant-looking and functional structure.

Abstract: A seamless handle grip assembly mounted on a single pulling rod of luggage is provided. The assembly comprises a tube a top grip section, a spring depressible push button a hollow, cylindrical left member inserted into a left portion of the tube, a hollow, cylindrical right member inserted into a right portion of the tube to matingly couple to the left member, a bottom grip section threadedly secured to the top grip section with the tube fastened therebetween, and a rod inserted upwardly through the bottom grip section into the tube and the spring to fixedly couple to the push button.

Abstract: The present invention relates to a luggage cart with a telescoping handle and fixed wheels including the addition of a foldable supportive wheel structure which is incorporated within the telescoping handle of a conventional luggage cart with fixed wheels to reduce the load that is applied to a user when a conventional luggage cart is employed.

Abstract: A luggage includes a main body, a pull bar mounted on the main body, a positioning member mounted on the pull bar, and a handle rotatably mounted on the positioning member. Thus, the luggage has a horizontally rotatable handle, so that the handle is rotated relative to the pull bar so as to adjust the angle between the handle and the pull bar arbitrarily.

Abstract: A travel bag includes two major components; specifically, a bag member and a base member. These components are formed to matingly fit together and to be permanently attached to one another via rivets. The bag member incorporates additional features including a reinforcement system of webbing with longitudinal and circumferal portions. Also, the bag includes accessory pockets, a taper and padding, zippered opening, ‘D’-ring, among others. The base member features include wheels, reinforcement ribbing, seamless and cornerless joints, surface relief indicia among others. In addition, the travel bag as a whole enjoys a new arrangement of all parts and systems which provides for an extremely durable and rugged device.

Abstract: An adjustable grip angle of the grip handle specific to a pull handle of luggage compartment. The bottom of the grip handle is provided with a connecting base, which makes the grip handle rotate round the pivot. A linkage bar is vertically provided within the grip handle. The top of the linkage bar is activated by the button while the bottom of the linkage bar is extended to the base of the grip handle. A rotary bar is provided at the bottom of the linkage bar. The back end of the rotary bar is provided with a fixation pin, which can shift vertically. The top of the fixation pin is connected to the second bar end of the rotary bar. The top of the connecting base is provided with at least two fixation holes, both of which can be joined with the base of fixation pin so as to fix the angle of grip handle when the grip handle stands upright, or stands by a preset degree of curvature.

Abstract: An expandable bag includes a body having a lower portion defining a closed bottom and a generally upstanding lower sidewall having an upper rim defining an upper opening and an upper portion defining an upper sidewall having a lower edge coupled adjacent to the upper edge of the lower portion and having an upper rim defining a top opening. The upper portion is movable between a folded position, in which the upper sidewall is folded within the lower sidewall such that the upper rim of the upper portion and the top opening thereof is disposed generally adjacent to the upper edge of the lower portion to define an interior compartment of a certain size, and an extended position, in which the upper portion is unfolded and extended upwardly, thereby extending the height of the body and, in turn, the bag creating an interior compartment of greater size.

Abstract: An object (2) mounted on wheels (4) has a grip device (1) of the type wherein a free end (10) of a telescopically extensible supporting structure (8) carries an integral grip portion (9) substantially parallel to an axis of rotation (6) of the wheels (4); according to the invention, the grip portion (9) has first (11) and second (12) articulating means enabling the grip portion (9) to rotate, with respect to the supporting structure (8), about two distinct axes of rotation (13, 14) perpendicular to each other; and angular locking means (33, 34) for preventing rotation of the grip portion (9) with respect to the supporting structure (8), and ensuring firm but reversible connection of the grip portion (9) to the supporting structure (8) in a predetermined mutual position. A third articulating means (35) enables the grip portion (9) to translate along one of the axes of rotation (13).

Abstract: A bag mounted with casters has a bag body attached to a base frame mounted with the casters at four corners of a bottom surface thereof. The base frame includes a loading table, and vertically extensible rods with a grip mounted at upper ends thereof. The extensible rods are fixed on one side of the loading table so as to stand on their own. Further, when the grip is raised, the extensible rods are curved or tilted so that the grip moves toward the middle of the loading table. The extensible rods are secured at a position in a retracted state by stoppers so that the grip is positioned at an upper portion of the bag body or above the bag body, and are secured at a position by the stoppers in an extended state so that a height of the grip from the bottoms of the casters is in a range of 60 to 100 cm.

Abstract: This invention provides a simple means for a user to determine the weight of a container with its contents before lifting or transporting it, therefore increasing safety for the user, as back strain and other physical discomforts can result from the repetitive lifting and prolonged carrying of containers that are too heavy. Furthermore, the claimed invention is a container with a built-in scale that allows a traveler on a commercial airline, train, bus or watercraft, to determine the weight of container with its contents so that the traveler can compare the weight of the of the container to baggage weight restrictions prior to departure, therefore, saving the traveler time and money.

Abstract: A weighing device (10) for providing a indication of the weight of a piece of luggage (5), the device comprising load bearing means (11) adapted to be placed on or form part of the carry means of the piece of luggage (H) and indicator means (19) associated with the load bearing means whereby when the luggage is lifted by the carry means (H), the load bearing means is subjected to the mass of the piece of luggage and the indicator means provides an indication of the weight of the piece of luggage.

Abstract: A suitcase includes a housing having a plurality of sides defining a cavity therebetween wherein one side is removably disposed along a bottom surface of the housing. The suitcase includes a first elongated and flexible handle secured to select ones of the sides defining a grip portion and a second flexible handle disposed subjacent to the first handle and attached to a top of one of the sides. The suitcase further includes a mechanism for effectively determining a weight of items stored within the suitcase and a mechanism for electronically displaying the weight of the items. An internal power supply source is electrically coupled to the determining mechanism and the displaying mechanism. A plurality of casters are secured to one side and extend downwardly therefrom.

Abstract: A carry-on luggage includes a casing having wheels rotatably mounted on a side face of the casing to allow the casing to move freely, a first recessed area defined in the side face thereof and a second recessed area defined in a side face of the casing to communicate with the first recessed area, a main board provided with a third recessed area, and a first and a second auxiliary handles securely and slidably received in the third recessed area to be able to extend out of the main board. The second auxiliary handle is able to extend out of the third recessed area and the first auxiliary handle is able to extend out of the third recessed area only when the main board is extended out of the first recessed area and pivoted relative to the casing.

Abstract: An ergonomic handle that includes a male portion and a female portion. The male portion nest in the female portion to form a single, preferably rigid, form. The stiffness of the handle spreads the load of the case more evenly across all the fingers thereby helping to reduce fatigue.

Abstract: A retractable wheel assembly (110) for a carrier (100) is disclosed wherein the wheels (120) are rotatably mounted in cowls (130), which are pivotably disposed in wheel wells (116L, 116R) on a housing. The cowls are connected with a cowl axle assembly (140) that includes a coil spring, preferably a constant force spring (150) that biases the cowls towards a retracted position. The constant force spring is connected to a retractable handle (104), preferably with a spring engagement member (160), such that extending the retractable handle will bias the cowls towards an extended position, wherein the wheels extend out of the wheel wells for use.

Abstract: A convertible luggage device including a retractable handle assembly and at least one pair of extendable wheels. Included is a brake system operating to lock at least one of the wheels. In one aspect, the device forms a stroller. In another aspect, the device includes straps for engaging a car seat or a basket for receiving luggage or other items. By embodying a broad wheel base, the present invention provides a stable platform for pushing or pulling luggage or for performing as a stroller.

Abstract: A carrying case for electronic equipment, such as a portable computer, includes back, front, top, bottom and side walls defining an interior including a compartment for receiving electronic equipment defined between a wall surface and a floating panel of the carrying case. The floating panel is selectively movable linearly toward and away from the wall surface to adjust the size of the compartment in accordance with the size of the electronic equipment received therein. A securing mechanism within the interior resiliently biases the floating panel toward the wall surface and provides a shock or impact absorbing effect for the electronic equipment. The carrying case has a handle including first and second handle portions rotatable between an engaged position wherein the handle portions are in abutment and a disengaged position wherein the handle portions are separated from one another. The first and second handle portions are configured to automatically matingly engage one another when rotated into abutment.

Abstract: A bag carrying system having a removable handle and wheel assembly is provided. The system includes a bag having a back portion with a panel overlying the back portion and a handle and wheel assembly comprising a handle portion, a wheel portion and a longitudinally extending supporting element connected therebetween. Significantly, the longitudinally extending supporting unit of the handle and wheel assembly is designed to be placed between the panel and back portion of the bag for releasably attaching the assembly thereto.

Abstract: An improved suitcase base and an improved pulling handle for use in a soft-sided suitcase and a hard-sided suitcase, giving the luggage, easy pulling characteristics. The base is nearly symmetrical in shape, with a V-shaped bottom wall forming an obtuse angle, which creates good ground clearance for the suitcase bottom under all conditions of towing over flat or uneven surfaces. Provision is made for securely latching the pulling handle while stored, and for quick, easy release from storage for pulling handle deployment. A duffle bag luggage carrier that incorporates the improved base, is also described. The improved base and quick-release pulling handle are easily adaptable to different styled soft-sided and hard-sided suitcases, and for non-suitcase luggage carriers.

Abstract: A luggage case is provided with straps or handles for carrying the case and a wheel and an extendable handle assembly for dragging or pulling the case. The wheel and extendable handle assembly is removably attachable to the case, such that it need not be carried when the case is carried by the straps or handles. The wheel and handle assembly are formed as a shell to snugly surround the luggage case. In the preferred embodiment, the case and the shell are joined by mating zippers at the bottom front and top rear edges of the assembly.

Abstract: A retractable handle of wheeled luggage is provided. For the case of single pulling rod, pressing a push button will tighten a connecting rod to move a lower sliding block to a one direction so that an upright rod is pressed to lower a locking member and an upright member to clear the locking member from a toothed member, thereby unlocking both the swivel handle grip and the pulling rod. For the case of two pulling rods, there is further provided another transmission mechanism so that pressing the push button will further unlock locking devices in the pulling rods via coupling rods.

Abstract: The present invention 10 discloses a retractably ergonomic handle assembly for use on a conventional wheeled piece of luggage 12. When the present invention 10 is extended from the docked position, the handle 16 member is free to rotate axially as shown by arrows 42 on the handle shaft 32 with integral ball 38 and socket 40 and to pivot 90 degrees in the pivot channel 28 relative to the luggage piece 12 in order to accommodate the preferred angle of the user 14. The handle 16 member may pivot and rotate simultaneously thereby permitting the handle to adjust to the movement of the user 14 while on the move without necessitating awkward adjustments while simultaneously absorbing shock. The handle 16 is fixed to the ball joint assembly 20 by a ball screw 24 extending from the handle 16 through the handle shaft 32 and into the ball of the ball joint assembly 20 providing strength and durability and also allowing quick, inexpensive repair thereof.

Abstract: A towable, wheeled-backpack includes a towing handle attached to a curved, single-pole, telescoping towing member which retracts into the backpack when not in use. The curvature of the towing member provides support for a backing sheet that is attached to the towing member, and the backing sheet is contoured so that the backpack can be comfortably supported on a wearer's back. A rigid base with wheels is pivotally attached to a bottom end of the towing member. The pivot attachment allows the base and wheels to move independently of the towing member as the bag is worn or as the bag is rolled along the ground.

Abstract: A wheeled luggage item includes a collapsible bar assembly for stably supporting a secondary bag on top of the luggage item. The collapsible bar assembly includes a base mounted on top of the luggage and a generally U-shaped bar member having two ends respectively pivoted to the base. The bar member can be pivoted between a collapsed position, at which the bar member rests against the base, and an extended position, at which the bar member extends outwardly at an angle of about 90° to the base. Releasable locking means disposed on the base lock the bar member at the collapsed position. A push-button releases the bar member from the collapsed position, and an elastic member captured between the base and the bar member biases the bar member upward away from the collapsed position.

Abstract: A suitcase includes a housing defining an interior chamber. The housing has a panel, which has a first end and a second end. The panel also has at least one wheel rotatably connected to the housing adjacent to the first end of the panel for enabling rolling movement of the suitcase across a surface. A plurality of spaced apart axles are fixedly connected to the housing. The suitcase also contains a roller being rotatably carried by each of the axles. Each of the rollers have a portion protruding into the panel and a portion protruding exterior to the panel. An endless belt may be circumscribed around the rollers.

Abstract: A bag includes two shells to define a compartment for accommodating a portable computer, and two handles. Each handle includes a gripping segment, two upper superimposing segments which extend from two ends of the gripping segment and which are superimposed upon an upper wall portion of each shell, and two bent segments which extend respectively from the upper superimposing segments to be bent over an upper edge of the shell and which terminate at two underlying regions that are disposed underneath the upper wall portion. Joining members are disposed to firmly connect the upper superimposing segments, the upper wall portions, and the underlying regions together.

Abstract: A retractable handle assembly for luggage in a pulling operation, press a push button to cause a spring in a plunger of buffer device to gradually and damply extending upward immediately. As a result, both a piston rod and thus the buffer device move upward gradually and damply. Also, a sliding tube coupled to the locking mechanism moves upward gradually and damply. As an end, the handle assembly is capable of gradually and damply extending from a top of the luggage a predetermined distance. At this position, a user can easily pull the handle assembly up to its maximum.

Abstract: A pull rod structure includes a pull rod and a handle fastened to a top end of the pull rod. The handle is formed of a hand grip and two control arms, each being provided therein with a control mechanism having a first activation button or a second activation button. The first activation button is pivoted with one end of the hand grip of the handle, whereas the second activation button is pivoted with the other end of the hand grip of the handle. These two activation buttons are so located on the hand grip that they are within an easy access of the thumb of a hand holding the hand grip, and that they are prevented from being activated unintentionally by the palm or fingers of the hand.

Abstract: A towable, wheeled-backpack includes a towing handle attached to a curved, single-pole, telescoping towing member which retracts into the backpack when not in use. The curvature of the towing member provides support for a backing sheet that is attached to the towing member, and the backing sheet is contoured so that the backpack can be comfortably supported on a wearer's back. A rigid base with wheels is pivotally attached to a bottom end of the towing member. The pivot attachment allows the base and wheels to move independently of the towing member as the bag is worn or as the bag is rolled along the ground.

Abstract: A reinforced arrangement for a handle assembly of wheeled luggage is disclosed. The handle assembly comprises two units each having a support tube and a sliding tube. The reinforced arrangement comprises an abutment mechanism under the sliding tube, a fixed pin for fastening the abutment mechanism and the sliding tube together, and a reinforced pin in the abutment mechanism urged against a wall of the sliding tube. Responsive to fully extending the sliding tubes for forming an H-shaped reinforced structure on portions of the wall of each sliding tube being in contact with the reinforced pin at about an opening of a bezel. That is, reinforcement is formed at points of external force exerted on the sliding tube while towing the luggage along a supporting surface for preventing the sliding tube from being bent or deformed.

Abstract: A handle grip of a trunk having an upper cover unit and a seat unit receiving in the upper cover unit. The seam of the seat unit and the upper cover unit are placed on a top of the handle grip and the stomach portion of the seat unit has no seam. Therefore, when it is held, the hand of the user will not be in contact with the seam of the seat unit and the upper cover unit so as to have a preferred handling feeling.

Abstract: Dual access hand luggage having in the interior a stowage cell system or assembly, preferably made of stretch fabric, that permits isolation packing and orthogonal stowage and retrieval of goods retained in the cells by access from either face of the suitcase. For roll-on type travel bags, a pop-up handle is provided in a side wall, rather than on the back face as in current luggage. The inventive system is particularly useful for suitcases, carry-on or roll-on bags, back packs, totes, brief cases, and laptop cases. Dual-sided external access combined with internal, modular, fixed-size or variable-size stowage cells, oriented generally orthogonal to the planes of both sides, permits packing and selective removal of articles through either face of the bag so that articles otherwise buried in the bag are easily removed by flipping the bag over and accessing the item through the openable back face.

Abstract: A retractable handle assembly for a luggage, handcart and the like comprises a retractable tube having four tubes engaged with each other, three controllers received in the tubes and a tube plug having engagement portion provided at an end of the retractable tube. A handle has a grip portion, an axle portion and a handle plug having an engagement portion provided at an end of the axle portion. The handle is pivotally coupled with the retractable tube by a shaft. A lock device is movably mounted on the retractable handle assembly. The lock device is moved between a first position, in which the lock device is engaged with both of the engagement portions of the retractable tube and the handle, and a second position, in which the lock device only is engaged with one of the engagement portions of the retractable tube and the handle.

Abstract: A case with randomly adjusting handle comprises a shell, frame, spring, fastening member, positional member, sleeve and removable member. Further, the shell comprises a button depositing an opening in the top. The button connects to the removable member between the frame, spring, fastening member, positional member and sleeve. When the user presses and holds the button of shell, the removable member could move down and turn an angle resulting in the handle moving an angle.

Abstract: Travel luggage includes a reinforced bottom panel and opposite end panels with a telescoping handle and wheels attached to the bottom panel and arranged to stiffen the end panels to provide for a semi-rigid configuration of the luggage. The luggage further includes a flexible fold over flap that folds over the contents of the luggage and is connected by a single fastening mechanism extending from the back panel of the luggage along the side panels and front panel. The cover flap includes interior pouches or other storage features which may be removable from the fold over cover or flap.

Abstract: A handle system for a rolling luggage case, including a telescoping post members extensible from a retracted position within a luggage case to an extended position protruding from the luggage case, a cross member extending between adjacent end portions of the telescoping post members, and a handle pivotally mounted to the cross member. A post cap member is attached on an end of the telescoping post member that is distal from the luggage case. The post cap member includes a cylindrical bearing surface to which a handle is pivotally mounted. The cylindrical bearing surface includes a pin reception aperture disposed on a circumference of the cylindrical bearing surface. The cylindrical bearing surface and the pin can be fabricated from a rigid structural material, such as metal.

Abstract: A metal locking pin of locking device for a wheeled luggage provides a projected plastic contact member at a front most end thereof for both increasing structural strength and eliminating the noise when the locking pin is in a position of compression and being retracted to disengage from the aperture for being adapted to extend or retract the handle assembly with the plastic contact member in sliding contact with an inner surface of the support tube. Thus the invention can achieve a smooth retracting or extending operation of the handle without noise.

Abstract: A handle attachment structure for a bag includes: a bag body; a handle having a through hole in each of ends thereof; an attachment fixed to the bag body while accommodating the end of the handle in a recess formed therein, the attachment including therein a stopped spindle hole and a through spindle hole aligned to each other across the recess, and a coming-out prevention hole crossing the through spindle hole; a handle spindle fixed in the stopped spindle hole and the through spindle hole while passing through the through hole in the handle; and a coming-out prevention spindle fixed in the coming-out prevention hole while crossing the through spindle hole.

Abstract: A retractable handle assembly of luggage comprises a single handle rod extended upward from a center at a joining edge of a top and a rear of luggage and having an upper portion and a lower portion connected to the rear; and a handle grip extended at a predetermined range of angle about a horizontal plane from a top of the handle rod toward a side of the luggage being perpendicular to the top or the rear of luggage in a stand-up position. An orientation of a hand holding the handle grip is parallel to a moving direction of the luggage being towed for facilitating an exertion of user's force thereon, thereby lowering a center of gravity of luggage for saving labor.

Abstract: A handle assembly for towable, wheeled luggage includes an axially elongated tubular member, which is extendably and retractably attachable at one end to the luggage, and a handgrip assembly rotatably mounted on the free end of the tubular member. A slidable collar assembly surrounds the rotational dividing line between the handgrip assembly and the tubular member and is axially movable relative thereto to permit selective rotation and locking of the handgrip assembly relative to the tubular member. The handgrip assembly may have a P-shaped configuration which is rotatable to position the loop portion of the P-shaped assembly to one side or the other to accommodate lefthanded and righthanded towing of the luggage.

Abstract: A convertible travel case has a frame including an upright with a handle for grasping and a base with wheels for towing. A rigid case is mounted on the frame by a connector bracket having one portion pivotally connected with an upper part of the case and another portion slidably connected with the upright to permit the case to be shifted between a generally vertical storage position and a generally horizontal cart position. The frame and case have mating catch members at the bottom of the case. A releasable lock connects the connector bracket and the upright in a first raised position wherein the catch members are engaged to retain the case in the storage position, and a second lowered position wherein the catch members are disengaged and the lower end of the case is swung outwardly away from the frame with the connector bracket shifting downwardly along the upright to the cart position for supporting additional luggage on top of the case.

Abstract: A handle assembly having a single handle rod of wheeled luggage is provided. The handle grip is extended toward and proximate either side of luggage for ease of holding. Also, there is no interference of user's body with wheel while towing luggage. Moreover, the handle grip is capable of being disposed either parallel or perpendicular with respect to a straight line between wheels of the luggage by rotating either clockwise or counterclockwise for ease of being gripped by either hand which tows the luggage.

Abstract: An expandable pull rod of luggage includes a top tube, a bottom tube, and a plurality of intermediate tubes which are arranged telescopically between the top tube and the bottom tube in conjunction with a plurality of control devices. Each device has a base, a locating member, and an actuating body. The locating member is formed of a first spring, a first locating block, a second spring, and a second locating block. The first spring and the first locating block are at work such that the first locating block is located in a first locating hole of the intermediate tube at the time when the pull rod is expanded. When the pull rod is contracted, the second spring and the second locating block are at work such that the second locating block is located in a second locating hole of the intermediate tube.

Abstract: A single-handed remote controller is disclosed. Such a controller is installed at the handle of an accordion frame and is connected to a lock mechanism of the frame through a flexible element. As the remote controller rotates relative to the handle, the flexible element is coiled around the handle, changing the relative position between the lock mechanism and the handle. The frame is thus changed to make the folding much easier.

Abstract: Certain embodiments of the present invention provide a system for transporting wheeled luggage using a handle which adapts to the natural position of a user's hand, arm, wrist, or elbow, decreasing strain on a user pushing or pulling the wheeled luggage. In an embodiment, a ball joint mechanism allows rotation and pivot movement of the adaptable handle. The ball joint mechanism permits the handle to rotate or pivot using a ball joint. In another embodiment, a cross bar mechanism allows rotation and pivot movement of the handle. The cross bar mechanism permits the handle to rotate using a ball encased in a cross bar. The cross bar mechanism permits the handle to pivot using a plurality of end caps which are connected to the cross bar. Alternatively, the crossbar mechanism permits the handle to rotate using a fitted plug which locks the handle to the crossbar.

Abstract: A combination backpack with detachable wheeled frame, the backpack attaching to the frame by joining an attachment on the upper and lower portion of the frame to a mate on the upper and lower portion of the backpack, and having a flap which can be wrapped around the wheeled frame and fastened to the backpack to secure the backpack to the wheeled frame.

Abstract: A bag mounted with casters has a bag body attached to a base frame mounted with the casters at four corners of bottom surface thereof. The base frame includes a loading table, and vertically extensible rods with a grip mounted at upper ends thereof. The extensible rods are fixed on one side of the loading table so as to stand on their own. Further, when the grip is raised, the extensible rods are curved or tilted so that the grip moves from the one side toward the middle of the loading table. The extensible rods are secured at a position in a retracted state by stoppers so that the grip is positioned at upper portion of the bag body or above the bag body, and are secured at a position by the stoppers in an extended state so that a height of the grip from bottoms of the caster is in a range of 60 to 100 cm.

Abstract: An apparatus is provided for mounting a handle on a trunk, the apparatus includes a base and a mount. The base is secured to the trunk and pivotally connected with the handle. The mount is secured to the trunk and pivotally connected with the handle. The mount defines a hole through which the handle extends. The apparatus may further include a joint for pivotally connecting the handle with the base. The apparatus may further include a joint put in the hole of the mount for pivotally connecting the handle with the mount.

Abstract: A luggage article including first rollers (44, 46) and selectively deployable or non deployable second rollers (52, 54). The luggage article includes a handle (26) that is movable between a retracted position and an extended position. The user can selectively deploy or not deploy the second rollers even when the handle is in the extended position. An improved detent device and also an improved caster system (200) are also disclosed. Also, a wheeled panel mechanism by itself for use not only with luggage but also other articles such as carts, dollies and baby carriages, is disclosed.

Abstract: A wheeled luggage item includes a collapsible bar assembly for stably supporting a secondary bag on top of the luggage item. The collapsible bar assembly includes a base mounted on top of the luggage and a generally U-shaped bar member having two ends respectively pivoted to the base. The bar member can be pivoted between a collapsed position, at which the bar member rests against the base, and an extended position, at which the bar member extends outwardly at an angle of about 90° to the base. Releasable locking means disposed on the base lock the bar member at the collapsed position. A push-button releases the bar member from the collapsed position, and an elastic member captured between the base and the bar member biases the bar member upward away from the collapsed position.