# US 11,077,909 B2 · Self-balancing scooter

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- Number: US 11,077,909 B2
- Document ID: US11077909B2
- Status: Granted
- Kind: B2
- Application number: 16/404,727
- Filed: 2019-05-06
- Published: 2020-11-12
- Granted: 2021-08-03
- Earliest claimed: 2019-05-06
- Assignees: Zhejiang Raymond Way Electronic Technology Co., Ltd
- Applicants: Zhejiang Raymond Way Electronic Technology Co., LTD.
- Inventors: Junjie Wang
- Web page: https://patentgrep.com/patent/US11077909B2

## CPC

- B62K 11/007: {Automatic balancing machines with single main ground engaging wheel or coaxial wheels supporting a rider}
- B62J 43/16: on motorcycles or the like
- B62J 43/28: hidden within the cycle frame
- B62M 11/00: Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels (with roller engaging the periphery of ground wheel B62M13/00)
- B62K 3/002: {without a seat, i.e. the rider operating the vehicle in a standing position, e.g. non-motorized scooters; non-motorized scooters with skis or runners}
- B62K 15/006: {the frame being foldable}
- B62K 2204/00: Adaptations for driving cycles by electric motor
- B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
- B62J: CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
- B62M: RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR {SINGLE-TRACK} CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES (arrangements or mounting of transmissions in vehicles in general B60K; transmission elements per se F16)

## Abstract

A self-balancing scooter includes a first holder configured with a first foot pedal, a second holder hinged to the first holder and configured with a second foot pedal, a first wheel frame hinged to the first holder, a second wheel frame hinged to the second holder, two wheels rotationally disposed in the first wheel frame and the second wheel frame, respectively, two driving devices respectively disposed in the first wheel frame and the second wheel frame and configured to drive the wheel to rotate, a power supply disposed the second holder and/or the first holder, a first induction device mounted between the first foot pedal and the first holder, a second induction device mounted between the second foot pedal and the second holder, and a handle disposed at a hinge connection location of the first holder and the second holder.

## Claims

### Claim 1

A self-balancing scooter, comprising:
a first holder configured with a first foot pedal and a first cover;
a second holder hinged to the first holder, and configured with a second foot pedal and a second cover;
a first wheel frame hinged to the first holder;
a second wheel frame hinged to the second holder;
two wheels rotationally disposed in the first wheel frame and the second wheel frame, respectively;
a power supply disposed in the second holder and/or the first holder; and
a handle;
wherein a first end of the first holder is hinged to a first end of the second holder, a second end of the first holder is hinged to the first wheel frame, and a second end of the second holder is hinged to the second wheel frame; a hinge connection location of the first holder and the second holder is named as a first hinge connection location, a hinge connection location of the first holder and the first wheel frame is named as a second hinge connection location, and a hinge connection location of the second holder and the second wheel frame is named as a third hinge connection location; the first cover is mounted above the first foot pedal, and the second cover is mounted above the second foot pedal; the first foot pedal is rotatable relative to the first holder, and the second foot pedal is rotatable relative to the second holder;
the handle is disposed at the first hinge connection location; when the handle is lifted up, the first holder and the second holder are folded toward each other, the first wheel frame rotates relative to the second hinge connection location until the first wheel frame abuts the first cover, and the second wheel frame rotates relative to the third hinge connection location until the second wheel frame abuts the second cover; when the handle is released, the first holder and the second holder are in an unfolded state, the first wheel frame returns to be disposed at the second end of the first holder and the second wheel frame returns to be disposed at the second end of the second holder to make the self-balancing scooter be in a riding state.

### Claim 2 (depends on 1)

The self-balancing scooter of claim 1, wherein a first connecting rod is disposed between the first holder and the second wheel frame, and a second connecting rod is disposed between the second holder and the first wheel frame; when the self-balancing scooter is in the riding state, the first connecting rod and the second connecting rod are under the first holder and the second holder; when the self-balancing scooter is in the folded state, the first connecting rod and the second connecting rod are in a gap between the first holder and the second holder.

### Claim 3 (depends on 2)

The self-balancing scooter of claim 2, wherein a first end of the first connecting rod is hinged to a lower surface of the first holder, a second hinged seat extends laterally from the second wheel frame, and a second end of the first connecting rod is hinged to the second hinged seat; a first end of the second connecting rod is hinged to a lower surface of the second holder, a first hinged seat extends laterally from the first wheel frame, and a second end of the second connecting rod is hinged to the first hinged seat; the first hinged seat and the second hinged seat are located above inner surfaces of the first wheel frame and the second wheel frame.

### Claim 4 (depends on 1)

The self-balancing scooter of claim 1, wherein the first hinge connection location is located at a lower end of a contact position of the first holder and the second holder; when the self-balancing scooter is in the riding state, the first end of the first holder and the first end of the second holder abut against each other.

### Claim 5 (depends on 1)

The self-balancing scooter of claim 1, wherein the second hinge connection location is located at the second end of the first holder, and the third hinge connection location is located at the second end of the second holder; when the self-balancing scooter is in the riding state, a first end of the first wheel frame and the second end of the first holder abut against each other, and a first end of the second wheel frame and the second end of the second holder abut against each other.

### Claim 6 (depends on 1)

The self-balancing scooter of claim 1, wherein the second hinge connection location and the third hinge connection location are respectively located above gravity centre of the first wheel frame and the second wheel frame such that when the handle is lifted up, the first wheel frame rotates relative to the second hinge connection location under an influence of gravity until the first wheel frame abuts the first cover, and the second wheel frame rotates relative to the third hinge connection location under the influence of gravity until the second wheel frame abuts the second cover.

### Claim 7 (depends on 1)

The self-balancing scooter of claim 1, wherein when the self-balancing scooter is in the riding state, the handle passes out the first holder and/or the second holder, and is partially exposed.

### Claim 8 (depends on 7)

The self-balancing scooter of claim 7, wherein a groove is formed between the first holder and the second holder for receiving the handle.

### Claim 9 (depends on 1)

The self-balancing scooter of claim 1, wherein the first holder and the second holder are respectively provided with one power supply; the power supply in the first holder supplies power to the driving device in the first wheel frame and the first induction device, and the power supply in the second holder supplies power to the driving device in the second wheel frame and the second induction device.

### Claim 10 (depends on 1)

The self-balancing scooter of claim 1, wherein the self-balancing scooter further comprises two driving devices respectively disposed in the first wheel frame and the second wheel frame and configured to drive the wheels to rotate, a first induction device mounted between the first foot pedal and the first holder, and a second induction device mounted between the second foot pedal and the second holder; the first induction device is configured to induce movement or movement trend of the first foot pedal and sends a first signal to the driving device in the first wheel frame, and the second induction device is configured to induce movement or movement trend of the second foot pedal and sends a second signal to the driving device in the second wheel frame; the driving device in the first wheel frame starts to work after receiving the first signal, and the driving device in the second wheel frame starts to work after receiving the second signal.

### Claim 11 (depends on 10)

The self-balancing scooter of claim 10, wherein the driving device comprises a drive motor, an inner side of the wheel is configured with an internal gear, the drive motor is configured with an output gear, and the output gear is meshed with the internal gear.

### Claim 12 (depends on 10)

The self-balancing scooter of claim 10, wherein the driving device comprises a drive motor, an inner side of the wheel is configured with an internal gear, an output end of the drive motor is configured with a reduction gearbox, an outer side of the reduction gearbox is configured with an output gear, and the output gear is meshed with the internal gear.

### Claim 13 (depends on 1)

The self-balancing scooter of claim 1, wherein the first wheel frame comprises a first half frame and a second half frame, the first half frame and the second half frame are fixed to each other, and the wheel is limited between the first half frame and the second half frame; the first half frame and the second half frame are hollowed, a plurality of locating bearings are fixed between the first half frame and the second half frame, and an outer edge of the locating bearing abuts against an inner surface of the wheel and supports the wheel; the second wheel frame comprises a first half frame and a second half frame, the first half frame and the second half frame are fixed to each other, and the wheel is limited between the first half frame and the second half frame; the first half frame and the second half frame are hollowed, the plurality of locating bearings are fixed between the first half frame and the second half frame, and the outer edge of the locating bearing abuts against the inner surface of the wheel and supports the wheel.