1. Field of the Invention
This invention relates to a motorized golf bag cart, particularly to one that is collapsible and able to be connected with a driver carriage, with convenience for storing, carrying and using.
2. Description of the Prior Art
Commonly, a conventional motorized golf bag cart disclosed in U.S. Pat. No. 7,537,076, is provided with a frame 12 and a seat 16, which cannot be folded so as to make the cart having a rather big size, inconvenient for storing and carrying about. This is the first defect. As two rear wheels 20 are configured to travel in certain direction while the cart is switched to manual mode, it counts on rotation of a front steering wheel 18 assembled at a lower portion of a handle bar to change traveling direction of the cart. However, it would confuse a user as the front steering wheel 18 has to be turned right if the cart is expected to turn left, and vice versa, exactly contrary to general custom. Moreover, in case that the cart is moved up a slope by manpower because of being of power exhaust of a battery, as the front wheels 18 under the handle has to go up the slope in the same direction of the rear wheels 30, the body is apt to swing with the steering assembly 14 owing to the front portion of the body tending to divide the force, in spite of the handle being restricted in turning around.
The object of this invention is to offer a collapsible motorized golf bag cart with a contracted bulk convenient for storing and carrying.
Another object of this invention is to offer a collapsible motorized golf bag cart permitting to be connected with a driver carriage for a user to ride instead of walking.
The main characteristics of the invention are a base frame, a lower frame and an upper frame. The base frame has a front wheel rotatable base set at two sides of the front side respectively for installing a front wheel able to spin freely, a battery set at the rear side, a connecting base formed at two sides of the rear side respectively, a motor positioned outwardly next to the connecting base, and two direction-oriented rear wheels connected outwardly with the motor. The lower frame is pivotally connected with the connecting base outwardly, provided with a positioning member located at two sides of the bottom respectively, and a folding joint installed at the top. The upper frame has a lower end connected with the folding joint, a joint and a handle bar set at the top. The handle bar is provided with a power switch and a speed controller etc, so as to direct the cart.
This invention is better understood by referring to the accompanying drawings, wherein:
As shown in
The base frame 3 is provided with a front-wheel rotatable base 31 set at two sides of the front respectively, with a concaved surface 311 formed in the inner side of the rotatable base 31. Two front wheels 32 are assembled under the rotatable base 31, able to rotate freely. The base frame 3 is also provided with a bag base 33 located at the intermediate portion, a battery groove 34 set at the rear portion for loading a battery 35, a connecting base 36 formed at two sides of the rear respectively, a motor 37 positioned outwardly next to the connecting base 36, and two direction-oriented rear wheels 38 connected outwardly with the motor 37. The motor 37 is provided with a shaft 370 that is mounted with a clutch 371 and cut with an inner fixing groove 372 and an outer fixing groove 373 around the free end. The rear wheels 38 are provided with a button 380 and a clutch 381. with the button 380 locked with the inner fixing groove 372 and with the clutch 381 engaged with the clutch 371 under normal condition, so that the rear wheels 38 can be driven by the motor 37, as shown in
With the button 380 locked with the inner fixing slot 372 and with the clutch 381 engaged with the clutch 371, the rear wheels 38 can be electrically driven by the motor 37 normally, as shown in
The lower frame 4 is pivotally connected with the connecting base 36 outwardly by means of an axle 41 set at the bottom. Formed at the top of the lower frame 4 is a folding joint 42 provided with a projecting bar 421 extended outward. The lower frame 4 is further provided with a positioning member 40 located at two sides of the bottom respectively for making the lower frame 4 fixedly positioned while folded or unfolded. By means of an axle 43 installed in the intermediate portion of the positioning member 40, the positioning member 40 is pivotally connected with the base frame 3. A sliding slot 44 is cut in the upper portion of the positioning member 40, employed to confine a projecting axle 45. When the lower frame 4 is to be folded, the positioning member 40 is first pressed down at the top (as arrowed by “A” in
The upper frame 5 has the lower end connected with the folding joint 42 that is able to keep the lower frame 4 and the upper frame 5 fixed in a certain angle. The upper frame 5 is provided with an upper bag support 51 located at the intermediate portion, a rotatable joint 52 and a handle bar 53 formed at the top. As shown in
The driver carriage 6 is installed behind the base frame 3, connected with the connecting base 36. As shown in
If necessary, the skateboard 61 can be folded up and positioned behind the lower frame 4, and by adjusting the joint 52, the handle bar 53 can be moved backward to a proper level, enabling a user to stand behind the cart holding the handle bar 53 to electrically direct the cart, as shown in
In case that the battery 35 is unloaded or used up of its power, the rear wheels 38 can be slightly pulled outward to free from linking with the motor 37, as shown in
In folding the cart, the skateboard 61 is first pulled up and positioned behind the lower frame 4. Next, the positioning member 40 is released so as to make the lower frame 4 folded both forwardly and downwardly, as shown in
On the contrary, when the cart is to be unfolded, the upper frame 5 is first pulled both upward and forward, with the folding joint 42 positioned to correspond to that of the lower frame 4. The lower frame 4 is successively pulled both upward and backward. The positioning member 40 is then pressed to a position corresponding to the base frame 3, as shown in
The invention has the following advantages as can be seen from the foresaid description.
1. In golf links, the cart of the invention can be generally used to carry the golf bag or a rider only.
2. With the skateboard 61 pulled up or laid down and the handle bar 53 adjusted to a proper level, the cart can be swiftly interchanged as a riding mode and a manpower mode.
3. If the cart is not installed with the driver carriage 6 (skateboard 61), it is also a motorized golf bag cart controlled by hands, providing more option to attract buyers.
4. As the cart is collapsible, it is convenient for storing and delivering.
5. Unlike the conventional cart mentioned previously, the cart of the invention does not cause directional errors while making a turn. And when the cart is moved up a slope, the handle bar 53 can be prevented from swinging by the lack of the downward force of the front portion of the body as the front wheels 32 can spin freely and the rear wheels 38 are direction-oriented.
6. By replacing the bag base 33 with a platform or a basket, the cart of the invention can be converted into a luggage cart usable in the airport or in the supermarkets.
While the preferred embodiment of the invention has been described above, it will be recognized and understood that various modifications may be made therein and the appended claims are intended to cover all such modifications that may fall within the spirit and scope of the invention.