Abstract: A foldable trolley luggage bag includes a bottom support, a reverse U-shaped telescoping handle, a coupling member, and a soft bag. The bottom support is provided at two lower rear ends with two wheels to enable easy pull or push of the luggage bag. The coupling member is fixed to a rear top of the bottom support, and two lower ends of the telescoping handle are turnably mounted in two guiding ways formed below two lateral ends of the coupling member. The soft bag is compressible and foldable, and is connected at an upper side to the telescoping handle and at a lower side to a top of the bottom support. Therefore, the whole telescoping handle may be pivotally turned about the coupling member between an upright and a horizontal position without being interfered by the soft bag.

Abstract: A knapsack with stereophonic reproducing kit mainly includes a knapsack having pockets provided at predetermined positions for receiving a musical sound source and two speakers that together form basic items in the stereophonic reproducing kit. A user may enjoy listening to music or broadcast alone or with other companions at any time and at any place while carrying the knapsack on the back or on the shoulder.

Abstract: A knapsack with stereophonic reproducing kit mainly includes a knapsack having pockets provided at predetermined positions for receiving a musical sound source and two speakers that together form basic items in the stereophonic reproducing kit. A user may enjoy listening to music or broadcast alone or with other companions at any time and at any place while carrying the knapsack on the back or on the shoulder.

Abstract: A foldable wheeled traveling case assembly includes a soft traveling case and a base formed from a rear wheel support and a front leg member. The leg member is fixedly connected to a lower front side of a rigid bottom plate of the traveling case and includes two rearward extended horizontal bars for detachably connecting to two connecting brackets mounted to a front side of the wheel support. When the bottom plate is turned to an extended position, the horizontal bars and the connecting brackets are firmly joined for the base to support the traveling case; and when the horizontal bars are disengaged from the connecting brackets, the bottom plate may be turned upward to bear against the traveling case and thereby reduces an overall volume of the wheeled traveling case assembly.

Abstract: A light-producing structure for a wheeled traveling case assembly includes a mini generator having a rotary shaft with a frictional wheel connected thereto to frictionally contact with an adjacent wheel of the assembly. When the wheel rotates, the frictional wheel and the rotary shaft are brought to rotate, enabling the mini generator to output currents, which are supplied to light-emitting elements provided on handle grip and traveling case of the assembly in order to give light. Each wheel of the assembly is internally provided with an induction coil and a plurality of small bulbs. A ring-shaped magnetic rotor is fixedly mounted on an axle of each wheel to locate in a central hole of the induction coil. When the wheel rotates, the induction coil rotates relative to the magnetic rotor to generate induced currents, which are supplied to the small bulbs in the wheel for the bulbs to give light.

Abstract: A light-producing structure for wheeled traveling case assembly includes a mini generator having a rotary shaft with a frictional wheel connected thereto to frictionally contact with an adjacent wheel of the assembly. When the wheel rotates, the frictional wheel and the rotary shaft are brought to rotate, enabling the mini generator to output currents, which are supplied to light-emitting elements provided on handle grip and traveling case of the assembly in order to give light. Each wheel of the assembly is internally provided with an induction coil and a plurality of small bulbs. A ring-shaped magnetic rotor is fixedly mounted on an axle of each wheel to locate in a central hole of the induction coil. When the wheel rotates, the induction coil rotates relative to the magnetic rotor to generate induced currents, which are supplied to the small bulbs in the wheel for the bulbs to give light.

Abstract: A light and sound producing structure for a wheeled traveling case assembly having a base with two wheels, an extendable pull handle and two front legs connected thereto, and a traveling case located on the front legs mainly includes a ring-shaped magnetic rotor fixedly mounted on an axle of one of the two wheels to rotate along with the wheel, and a stator coil fixedly mounted on the base to surround the ring-shaped magnetic rotor. When the wheels rotate, induced currents are generated on the stator coil and supplied to the pull handle and/or the traveling case for light-emitting and sound-reproducing elements provided thereon to produce light and sound, respectively.

Abstract: A light and sound producing structure for a wheeled traveling case assembly having two wheels, an extendable pull handle, two front legs for supporting the traveling case assembly to stand stably, and a traveling case located on the front legs includes a mini generator located adjacent to one of the two wheels of the traveling case assembly. When the wheels rotate, a rotary shaft of the mini generator is driven by the adjacent wheel to rotate and thereby causes the mini generator to generate and output currents, which are supplied to the pull handle and/or the traveling case for light-emitting and sound-reproducing elements provided thereon to produce light and sound, respectively.

Abstract: A cart-separable traveling bag includes a traveling bag that may be easily associated with a cart to form a wheeled traveling bag with a telescopic handle to be conveniently moved around, or separated from the cart to enable full collapse of the bag and the cart into two minimized volumes that enables easy storage of the cart and the traveling bag by a use when they are not in use, and reduced warehousing and transporting costs of the cart and the traveling bag to be undertaken by manufacturers and distributors.

Abstract: A telescopic handle for luggage cart includes a simplified locating mechanism for conveniently locking tubes of the telescopic handle in place when the tubes have been pulled to a fully extended position. The tubes of the telescopic handle could be extended and telescoped relative to one another without the need of a pushbutton mechanism. Instead, the telescopic handle employs elastically retractable steel balls to enable automatic locking of the extended tubes of the telescopic handle in place, so that the handle could be more conveniently operated.