Abstract: A golf cart collapsible device includes a frame folding articulation, a linking mechanism, a four-bar linkages mechanism, a front wheel, two rear wheels and a locking mechanism. Thus, the front wheel and the rear wheels are folded and expanded simultaneously by driving the upper frame, so that the golf cart is folded and expanded easily, quickly and conveniently. In addition, the front wheel and the rear wheels can be folded and expanded simultaneously, so that the user needs not to hunker or bend his/her body to fold and expand the front wheel individually, thereby greatly facilitating the user folding and expanding the golf cart.

Abstract: A golf bag cart foldable device includes a bottom cart stand having a link segment at its top, where both sides of the link segment each is in pinned connection with a rear wheel frame, which has its bottom end join the rear wheel, and the bottom cart stand is provided with a slider at the bottom of the link segment. An upper cart stand is in pinned connection with the link segment at its bottom, and has a bracket at its top, where the bracket couples to a mount at its one end. A handle bar is joined the mount at its bottom at which an angle adjustable joint is located, and has a score board at its top. A linkage set comprises a first linkage being set up between the upper cart stand and the slider, a second linkage being set up between the slider and the rear wheel frame, and a third linkage being set up between the mount and the first linkage.

Abstract: A brushless DC motor structure with a constant ratio of multiple rotor poles to slots of the stator is disclosed, which is characterized primarily by forming the stator of the motor by multiple ferromagnetic silicon steel sheets, where the ferromagnetic silicon steel sheets are provided with the multiple slots whose number is a multiple of 15, and the stator of the motor is formed by windings of the three phases, X, Y, and Z. Each phase includes 2 to 4 phase portions and each group has 5 slots. The rotor of the motor is made up of a plurality of arced magnets which are fixed orderly and equally along a ferromagnetic steel ring, and the radial direction of each arced magnet is opposite to that of the adjacent magnetic poles. An arced magnet represents a magnetic pole, and the number of the magnetic poles is a multiple of 14 or 16. By means of the aforementioned setting, the reduction of the cogging torque of the motor is achievable.

Abstract: A front wheel foldable device for a golf cart includes a main body, a wheel frame, a positioning member, a sleeve, a stop member, and an elastic member. Thus, the wheel frame is pulled outwardly relative to the main body so that the locking portions of the positioning member are moved to detach from the locking grooves of the main body respectively. Then, the wheel frame is rotated through ninety (90) degrees and is released, so that the post of the wheel frame is retracted into the main body by a restoring force of the elastic member, the locking portions are locked in the locking grooves respectively, the front wheel is turned from an upright state to a horizontal state, and the front wheel is parallel with and rested on the cart frame when the cart frame is folded.

Abstract: This invention is to provide a golf bag cart front wheel foldable device, comprising: a fixed mount, having its one end connected to the bottom tube of cart frame and the other end provided with a fitted end, where the fitted end is in pinned connection with a buckle at its one side; a movable mount, capable of being seized by the buckle and joined fixedly to the fixed mount by means of a hinge, where its one end is provided with a fitted end which is physically in harmony with the fixed mount; and a front wheel frame, having its top end connected fixedly to the movable mount, while its bottom end is joined to the front wheel; through the loosening of the buckle, the movable mount is no more seized, which enables the movable mount and the front wheel frame to rotate with respect to the hinge, and the front wheel is then leveled for folding purpose, to achieve great handiness in maneuvering.

Abstract: An electrical vehicle battery set circuitry is disclosed, comprising: multiple battery holders, connected in parallel inside the electrical vehicle, each has a positive and a negative power cords, where the positive power cords each connects with a diode, and all are combined into a bigger positive power cord, while the negative power cords are directly combined into a bigger negative power cord, for the conduction of the electric current to the control unit of the electrical vehicle; multiple battery sets, laid fixedly on the battery holders; by exploiting the rectifying property of the diode, the electrical vehicle is capable of being added or replaced various similar or dissimilar types of batteries, and able to settle the charging between batteries, which would accomplish the handiness in use and lengthen the life of battery set.

Abstract: A golf bag cart is disclosed, comprising a bottom cart stand, having a link segment at its top, and a bag base at its bottom, where the bottom cart stand is provided with a slider thereon; an upper cart stand, in pinned connection with the link segment at its bottom; a rear wheel frame, fixed at each of both sides of the link segment, where the two rear wheel frames and the bottom cart stand together form a pyramid, and the bottom end of the rear wheel frame connects to the rear wheel; a linkage, set up between the upper cart stand and the slide; a draw pole, set up between the slide and the rear wheel frame; a front wheel, positioned under the bag base, having a folding joint, which could level the front wheel; and a lock mechanism, having a core, in pinned connection to the top of the slider, where the upper cart stand and the bottom cart stand are thus fastened to each other; the rear wheels could be spread up, subject to the linking among the linkage, the slider, the draw pole and the rear wheel frame; th

Abstract: A golf bag cart foldable device includes a bottom cart stand having a link segment at its top, where both sides of the link segment each is in pinned connection with a rear wheel frame, which has its bottom end join the rear wheel, and the bottom cart stand is provided with a slider at the bottom of the link segment. An upper cart stand is in pinned connection with the link segment at its bottom, and has a bracket at its top, where the bracket couples to a mount at its one end. A handle bar is joined the mount at its bottom at which an angle adjustable joint is located, and has a score board at its top. A linkage set comprises a first linkage being set up between the upper cart stand and the slider, a second linkage being set up between the slider and the rear wheel frame, and a third linkage being set up between the mount and the first linkage.

Abstract: A golf cart collapsible device includes a frame folding articulation mounted between an upper frame and a lower frame for folding the upper frame, a frame collapsing articulation mounted on the lower frame for folding the lower frame, a rear wheel frame mounted between the frame folding articulation and a rear wheel, a first pull bar mounted between the frame folding articulation and the rear wheel frame for folding the rear wheel, a front wheel folding articulation mounted between the lower frame and a front wheel frame for folding a front wheel, and a second pull bar mounted between the rear wheel frame and the front wheel folding articulation. Thus, the front wheel and the at least one rear wheel are folded simultaneously by linking of the first pull bar and the second pull bar.

Abstract: A golf cart collapsible device includes a frame folding articulation, a linking mechanism, a four-bar linkages mechanism, a front wheel, two rear wheels and a locking mechanism. Thus, the front wheel and the rear wheels are folded and expanded simultaneously by driving the upper frame, so that the golf cart is folded and expanded easily, quickly and conveniently. In addition, the front wheel and the rear wheels can be folded and expanded simultaneously, so that the user needs not to hunker or bend his/her body to fold and expand the front wheel individually, thereby greatly facilitating the user folding and expanding the golf cart.