Motorized device for original non-motorized multipurpose hand buggy

Abstract

The utility model provides a motorized accessory for a multipurpose hand buggy. In one aspect, the accessory may include at least one adjustable frame for attachment to a hand buggy. In another aspect, the frame supports a power source, which may be disposed below or above the frame. In another embodiment, the frame may be further attached to a motor coupled or encapsulated in the drive wheel. In one embodiment, the drive wheel may be disposed or positioned between two existing front wheels of a hand buggy. In another example, the drive wheel may include a tire having a depth processed tire of about 4 inches to 6 inches (width). The accessory may also include a controller or trigger to energize the motor and drive wheels to provide desired motion to assist the hand buggy.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to auxiliary attachments. Specifically, aspects of the present disclosure relate to motorization of a formerly non-motorized utility cart. Background Art

[0002] Humans have used carts, wheelbarrows, barrows, or other wheeled transport devices for centuries. These devices provide convenience and ease when places are inaccessible to motor vehicles or when humans are unable to carry items (either due to quantity or weight) in backpacks, bags, or other containers.

[0003] Figure 1 and Figure 2 One of the latest inventions of foldable wheeled containers or carts 100 is shown, which are already being used by consumers around the world. Wagons have been used for a variety of occasions, including outdoor activities, camping, etc. Due to their foldable structure, they can also be easily placed in a car and transported to different destinations. Parents also use them to transport young children or pets in the park.

[0004] Although Figure 1 and Figure 2 The handcart 100 shown in FIG. 1 has the above advantages, but one of the main disadvantages is that it is not motorized. Due to this disadvantage, handcarts are therefore available in motorized versions. However, these new versions require consumers to abandon their existing handcarts and purchase new motorized versions. In addition, motorized versions are not foldable and are inconvenient to carry. Utility Model Content

[0005] The present invention makes innovation on the existing foldable handcarts and provides motorized accessories on the handcarts to overcome the previous shortcomings of the prior art.

[0006] The present disclosure provides a motorized device for an original non-motorized multi-purpose hand-pulled cart, which includes a main frame for being attached to the body of the original non-motorized multi-purpose hand-pulled cart; a power source attached to the main frame; a motor installed in a drive wheel, wherein the drive wheel is arranged on the main frame and close to the handle of the original non-motorized multi-purpose hand-pulled cart; the power source provides electricity for the motor; and a controller, which connects and starts the motor to drive the drive wheel.

[0007] Optionally, the main frame comprises one or more attachment hooks for attaching the main frame to a frame of a body of a multi-purpose handcart.

[0008] Optionally, the power source is arranged at a central position of the main frame.

[0009] Optionally, the drive wheel is located between the front wheels of the multi-purpose handcart.

[0010] Optionally, the motorized device further comprises a spring connected between the drive wheel and the front end of the main frame.

[0011] Optionally, the controller includes a wired cable for connecting a trigger to control the speed of the motor.

[0012] Optionally, the trigger is attached to the handle of the utility cart.

[0013] Optionally, the controller includes a wireless module for sending or receiving wireless signals.

[0014] Optionally, the main frame includes at least one retractable arm for positioning one or more attachment hooks for attachment to different locations of the body of the multi-purpose hand cart.

[0015] Optionally, the original non-motorized multi-purpose handcart includes a non-motorized load-bearing device.

[0016] In one aspect, the accessory may include at least one adjustable frame for attachment to the cart. In another aspect, the frame supports a power source, which may be disposed below the frame or above the frame. In another embodiment, the frame may be further attached to a motor coupled or encapsulated in a drive wheel. In one embodiment, the drive wheel may be disposed or positioned between the two existing front wheels of the cart. In another example, the drive wheel may include a tire having a deep treated tire of approximately 4 inches to 6 inches (width). The accessory may also include a controller or trigger to energize the motor and drive wheel to provide the desired movement to assist the cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] It will be appreciated by those of ordinary skill in the art that the elements in the figures are shown for simplicity and clarity, and therefore not all connections and options are shown. For example, common but easily understood elements that are useful or necessary in commercially feasible embodiments may not be depicted in general, so as to more clearly view these various embodiments of the present disclosure. It will also be appreciated that certain actions and / or steps may be described or depicted in a particular order of occurrence, and it will be appreciated by those of ordinary skill in the art that such particularity regarding order is not actually necessary. It will also be appreciated that the terms and expressions used herein may be defined relative to their respective respective fields of inquiry and research, unless otherwise specifically defined herein.

[0018] Figure 1 It is a side view of an existing multi-purpose handcart.

[0019] Figure 2 yes Figure 1 A front view of an existing multi-purpose handcart.

[0020] Figure 3 is a side view of a motorized attachment according to one embodiment.

[0021] Figure 4 is a first schematic diagram of a front view of a motorized accessory according to one embodiment.

[0022] Figure 5 is a second schematic diagram of another front elevation view of a motorized attachment according to an embodiment.

[0023] Figure 6 and 7 is a top view of a motorized attachment according to one embodiment.

[0024] Description of reference numerals: 100: utility cart; 102: handle; 104: basket; 106: wheel set; 108: frame; 300: attachment; 302: main frame; 304: attachment hook; 306: power source; 308: motor; 310: spring connection; 312: controller; 314: retractable arm; 316: drive wheel / wheel / tire assembly; 504: brake; 602: frame; 604: main element; 606: transverse element; 704: diagonal frame; DETAILED DESCRIPTION

[0025] The embodiments may now be described more fully with reference to the accompanying drawings, which form a part of this document and show, by way of illustration, specific exemplary embodiments that may be implemented. These descriptions and exemplary embodiments may be understood as examples of the principles of one or more embodiments, and may not be intended to limit any one of the embodiments shown. The embodiments may be embodied in a variety of different forms and should not be construed as being limited to the embodiments described herein; on the contrary, these embodiments are provided to make the disclosure comprehensive and complete and to fully convey the scope of the embodiments to those skilled in the art. Among other things, the utility model may be embodied as a system, a computer-readable medium, a device, or an apparatus. Therefore, the utility model may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware aspects. Therefore, the following detailed description should not be considered restrictive.

[0026] Reference now Figure 1 and 2 , a conventional non-motorized load-carrying device or non-motorized multi-purpose cart (hereinafter referred to as "cart") 100 is shown. In one example, the cart 100 is a manually pulled device without inherent or auxiliary power during movement. In another example, the cart 100 generally includes a handle 102, a container or basket 104 for carrying a load, a set of four wheels 106, and a frame 108 for supporting the container, the handle, and the set of wheels. Figure 1 is a side view of the handcart 100, Figure 2 is a front view of the handcart 100 .

[0027] Reference now Figures 3 to 5 , which illustrate different views of a motorized attachment 300 according to one embodiment. In one aspect, Figure 3 A side view of the accessory 300 is shown; Figure 4 is a front view of the attachment 300; Figure 5 is another front view of the accessory 300 with additional elements; and Figure 6 and Figure 7 6 is a top view of the accessory 300. In one embodiment, the accessory 300 may include a main frame 302. In one embodiment, the main frame 302 may include a skeleton 602. In one embodiment, the skeleton 602 may include one or more elements, such as a central main element 604 and a set of transverse elements 606. In another embodiment, the skeleton 602 may be arranged in a variety of ways. For example, Figure 6 As shown, the skeleton 602 is arranged in an x-axis and y-axis manner, wherein the central main element 604 is located on the y-axis and a set of transverse elements are located horizontally or laterally, or along the x-axis. In another embodiment, the skeleton 602 can be arranged in a diagonal manner 704, such as Figure 7 It should be understood that the skeleton 602 can be arranged in a variety of ways or combinations of the above methods without departing from the scope or purpose of the present invention.

[0028] In another embodiment, the main frame 302 may also include one or more attachment hooks 304 for attaching to the frame 108. In one embodiment, the hooks 304 may be positioned along the skeleton 602. For example, as shown, the hooks 304 may be positioned along the outermost frame of the skeleton 602. In another embodiment, the hooks 304 may be fixed or welded to the skeleton 602. In another embodiment, the hooks 304 may slide along the skeleton 602 to accommodate various sizes or positions of the frame 108 of the handcart 100. In another embodiment, the main frame 302 may provide a retractable arm 314 that is connected to the skeleton 602 and one or more hooks 304 to enable the hooks 304 to attach to the frame 602. In one example, the attachment hooks 304 may be metal hooks. In another embodiment, the attachment hooks 304 may be a hook and loop system for tying or securing the skeleton 602 to the frame 108. It should be understood that other attachment devices, such as magnetic snaps, loop buttons, cable ties, etc., may be used without departing from the scope or motivation of the present invention.

[0029] In another embodiment, the main frame 302 can include a power source 306. In one example, the power source 306 can be a battery pack including a set of batteries or a power source. For example, the power source 306 can include a lithium ion power source or a capacitor located in a protective housing or sleeve. In one example, the power source 306 can be coupled to the main frame 302 or engaged with the main frame 302. For example, the power source 306 can be attached or mounted to the main frame 302. In one example, the power source 306 can be disposed in a central position of the main frame. In another embodiment, the power source 306 can be disposed below the basket 104.

[0030] In one aspect, the power source 306 may include one or more battery cells or modules that may be distributed along the main frame 302. For example, a single battery cell or module may be cylindrical or bar-shaped, rather than a cuboid. Thus, depending on the design of the main frame 302, the power source 306 may have battery cells or modules placed along or below the skeleton 602, and each unit or module may be connected by wires. In one aspect, this design may allow backup units to be set along the main frame 302.

[0031] In one aspect, the power source 306 can provide electrical energy to the controller 312 before the controller 312 activates the power of the motor 308. In one embodiment, the motor 308 can be a propulsion device, such as a hub motor with or without regenerative braking capabilities. The motor 308 can be coupled to the wheel / tire assembly 316 of the main frame 302 and configured to drive the main frame 302. Therefore, once connected, the wheel 316 with the motor 308 becomes the driving wheel and fifth wheel of the entire connected motor truck.

[0032] In one aspect, wheels 316 may include solid tires designed for rough terrain.

[0033] In another embodiment, the wheel 316 may include a threaded tire that is 4 inches to 6 inches deep. In another embodiment, the tire of the wheel 316 may include grooves or tire patterns that increase or enhance traction with the ground. It should be understood that tires of other configurations may be used without departing from the scope or intent of the present invention.

[0034] In another embodiment, the wheel 316 and the motor 308 can be arranged between the two wheels 106 of the handcart 100. In one example, as Figure 5 As shown. The wheel 316 is located in the center between the two front wheels of the hand truck 100. Such positioning ensures maximum stability and torque when assisting the user in pulling the truck 100.

[0035] In one aspect, the power source 306 can be in communication with a controller 312 that is activated or operated to regulate the energy flowing to and from the motor 308. In one aspect, the controller 312 can be located near the front of the main frame 302 or near the power source 306. In one aspect, when the motor 308 can be a hub motor with regenerative braking, an inverter (not shown) can commutate the current depending on whether the accessory 300 is accelerating or decelerating through braking. In one aspect, this allows energy that is normally wasted to be recovered and stored in the power source 306. In another embodiment, when the motor 308 may not have regenerative braking capabilities, an inverter can also be included in the circuit of the power source 306 to change the current from the direct current (DC) power source 306 to the motor 308 designed to run on alternating current (AC).

[0036] In further embodiments, power source 306 may be recharged by connecting the power cable to an AC power source.

[0037] In one aspect, the controller 312 may include a processor or microprocessor having circuitry to regulate or manipulate the power from the power source 306. In another aspect, the controller 312 may also include a brake 504 connected via the connector 502. In one embodiment, the brake 504 may include a handle and trigger for accelerating or decelerating. In another embodiment, the connector 502 may include wires connecting the controller 312 to the brake 504.

[0038] In another embodiment, the power source 306 may provide a display to display the power capability level of the power source 306. In another embodiment, the controller 312 may include a wireless module to transmit information such as the power capability level of the power source 306. In another embodiment, the wireless module may be coupled with an application or software installed on a mobile phone so that the application may receive or process information from the wireless module. In one example, the wireless module may include a wireless chip capable of transmitting information via a wireless standard, such as wireless communication, such as via (802.11 standard), Bluetooth, cellular communications or near field communications (NFC) devices. Similarly, mobile phones can be equipped with similar wireless chips to receive such information, install the above applications or install built-in interface software so that the information can be presented or provided to the user.

[0039] Optionally, the handle may be coupled to a display to display information from the wireless module.

[0040] In another embodiment, the accessory 300 may include a spring connection 310 disposed between the drive wheel 316 and the main frame 302. In one aspect, the spring connection 310 may include a spring or similar device to reduce or absorb vibrations experienced by the wheel 316. In another aspect, the spring connection 310 may provide a downward force to enhance or increase friction or traction between the drive wheel 316 and the ground, so that the drive wheel 316 has sufficient traction with the ground.

[0041] In one embodiment, the attachment 300 may be foldable to reduce the overall size and fit within the cart 100 .

[0042] Based on the disclosure and teachings provided herein, a person skilled in the art may know and understand other ways and / or methods to implement the present invention using hardware, software, or a combination of hardware and software.

[0043] The above description is illustrative, not restrictive. After reading this disclosure, those skilled in the art can clearly see many variations of the embodiments. Therefore, the scope of the embodiments should not be determined with reference to the above description, but should be determined with reference to the pending claims and their full scope or equivalents.

[0044] One or more features of any embodiment may be combined with one or more features of any other embodiment without departing from the scope of the embodiment. Unless expressly stated otherwise, the expression "a" or "the" is intended to mean "one or more". Unless expressly stated otherwise, the expression "and / or" is intended to indicate the most inclusive meaning of the term.

[0045] While the present disclosure may be embodied in many different forms, the drawings and discussion are presented with the understanding that the present disclosure is illustrative of the principles of one or more inventions and is not intended to limit any one embodiment to that shown.

[0046] The present disclosure provides a solution to the above-mentioned long-standing needs. Specifically, aspects of the present invention provide an enhanced motorized attachment to existing multi-purpose hand carts.

[0047] Further advantages and modifications of the above-described systems and methods will readily occur to those skilled in the art.

[0048] Therefore, the present disclosure in its broader aspects is not limited to the specific details, representative systems and methods, and illustrative examples shown and described above. Various modifications and variations may be made to the above description without departing from the scope or spirit of the present disclosure, and the present disclosure is intended to cover all such modifications and variations as long as they fall within the scope of the following claims and their equivalents.

Claims

1. A motorized device for a non-motorized multi-purpose handcart, characterized in that include: The main frame is used to attach to the body of the original non-motorized utility cart; a power source, attached to the main frame; a motor mounted in a drive wheel, wherein the drive wheel is disposed on the main frame and adjacent to the handle of the original non-motorized multi-purpose handcart; The power source provides electric power to the motor; and A controller connects and starts the motor to drive the drive wheels.

2. The motorized device according to claim 1, characterized in that The main frame includes one or more attachment hooks for attaching the main frame to the frame of the body of the original non-motorized multi-purpose hand cart.

3. The motorized device according to claim 1, characterized in that The power source is arranged at the center of the main frame.

4. The motorized device according to claim 1, characterized in that The driving wheel is located between the front wheels of the original non-motorized multi-purpose handcart.

5. The motorized device according to claim 1, characterized in that Also included is a spring connected between the driving wheel and the front end of the main frame.

6. The motorized device according to claim 1, characterized in that The controller includes a wired cable for connecting to a trigger to control the speed of the motor.

7. The motorized device according to claim 6, characterized in that The trigger is attached to the handle of the original non-motorized multi-purpose hand cart.

8. The motorized device according to claim 1, characterized in that The controller includes a wireless module for sending or receiving wireless signals.

9. The motorized device according to claim 2, characterized in that The main frame includes at least one retractable arm for positioning one or more attachment hooks to attach to different locations of the body of the original non-motorized multi-purpose hand cart.

10. The motorized device according to claim 1, characterized in that The original non-motorized multi-purpose handcart comprises a non-motorized load-bearing device.

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