# US 10,370,053 B2 · Powered personal mobility vehicle with rotating wheels > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,370,053 B2 - Document ID: US10370053B2 - Status: Granted - Kind: B2 - Application number: 15/605,176 - Filed: 2017-05-25 - Published: 2018-04-19 - Granted: 2019-08-06 - Earliest claimed: 2012-03-27 - Assignees: Razor USA LLC - Applicants: Razor USA LLC - Inventors: Robert Chen; Robert Hadley; William Griggs - Web page: https://patentgrep.com/patent/US10370053B2 ## CPC - B62K 5/025: power-driven - B60B 33/0068: {the swivel axis being vertical} - B60L 50/60: using power supplied by batteries (in combination with fuel cells B60L50/75) - B60L 50/66: {Arrangements of batteries} - B62K 5/027: Motorcycles with three wheels (specially adapted for disabled riders B62K5/023) - B62K 23/04: Twist grips - B62L 3/02: for control by a hand lever (hand levers for control of cycles in general B62K23/06) - Y02T 10/70: Energy storage systems for electromobility, e.g. batteries - B62K: CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE - B60B: VEHICLE WHEELS (making wheels or wheel parts by rolling B21H1/00, by forging, hammering or pressing B21K1/28); CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION - B60L: PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES (arrangements or mounting of electrical propulsion units or of plural diverse prime-movers for mutual or common propulsion in vehicles B60K1/00, B60K6/20; arrangements or mounting of electrical gearing in vehicles B60K17/12, B60K17/14; preventing wheel slip by reducing power in rail vehicles B61C15/08; dynamo-electric machines H02K; control or regulation of electric motors H02P); SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES (electric coupling devices combined with mechanical couplings of vehicles B60D1/64; electric heating for vehicles B60H1/00); ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL (control or regulation of electric motors H02P); MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES - B62L: BRAKES SPECIALLY ADAPTED FOR CYCLES {(arrangements in cycles for adjusting wheel-braking force to meet varying vehicular or ground-surface conditions B60T8/00)} - Y02T: CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION ## Abstract An electric powered personal mobility vehicle that includes at least one front wheel and an electric motor that provides rotational force to a wheel of the vehicle. The electric motor is supported by the vehicle and is powered by a rechargeable battery that is also supported by the vehicle. The vehicle can also include swivel caster wheels each configured to rotate about a wheel axis. ## Claims ### Claim 1 A personal mobility vehicle comprising: a frame with a central vertical plane extending vertically through a longitudinal axis of the personal mobility vehicle, the frame comprising: a front portion extending along the vertical plane; and a rear portion coupled to the front portion, the rear portion comprising a first leg and a second leg, the first leg and the second leg extending laterally outward from the vertical plane; a seat connected with the frame, wherein the seat is adjacent to an intersection of the first and second legs; a front wheel rotatable about an inclined steering axis; a first rear wheel connected with the first leg and a second rear wheel connected with the second leg, each of the rear wheels configured to rotate about a rotational axis and swivel about a swivel axis; a front fork connected with the frame and rotatable about the inclined steering axis, the front fork supporting the front wheel, and the front fork comprising a first inclined support on a first lateral side of the front wheel and a second inclined support on a second lateral side of the front wheel, wherein each of the supports comprises an upper end that curves laterally outward to form a handgrip, wherein the handgrips are configured to provide steering of the front wheel; a power source; and an electric motor operably connected with the power source, the electric motor being operably connected with the front wheel to provide rotational force to the front wheel. ### Claim 2 (depends on 1) The personal mobility vehicle of claim 1, further comprising footrest portions connected with the front fork. ### Claim 3 (depends on 2) The personal mobility vehicle of claim 2, wherein the footrest portions extend, in directions transverse to the vertical plane, beyond a width of the front fork. ### Claim 4 (depends on 1) The personal mobility vehicle of claim 1, wherein the electric motor is positioned laterally between the first and second inclined supports. ### Claim 5 (depends on 1) The personal mobility vehicle of claim 1, wherein each of the rear wheels is configured to freely rotate 360 degrees about its swivel axis. ### Claim 6 (depends on 1) The personal mobility vehicle of claim 1, wherein each of the rear wheels includes a biasing mechanism configured to limit the degree of rotation of each rear wheel, and to bias each rear wheel toward a neutral steering position. ### Claim 7 (depends on 1) The personal mobility vehicle of claim 1, wherein the front wheel includes a sprocket and the electric motor transfers power to the front wheel through an endless drive loop. ### Claim 8 (depends on 1) The personal mobility vehicle of claim 1, further comprising a braking mechanism configured to apply braking force to at least one wheel of the personal mobility vehicle while simultaneously reducing power from the motor to the front wheel. ### Claim 9 (depends on 1) The personal mobility vehicle of claim 1, wherein the electric motor is fixedly attached to the front fork. ### Claim 10 (depends on 1) The personal mobility vehicle of claim 1, wherein the power source is positioned behind the seat. ### Claim 11 (depends on 1) The personal mobility vehicle of claim 1, wherein the rear portion connects with the front portion at a substantially right angle. ### Claim 12 A personal mobility vehicle comprising: a frame with a central vertical plane extending vertically through a longitudinal axis of the personal mobility vehicle, the frame comprising: a front portion extending along the vertical plane; and a rear portion coupled to the front portion, the rear portion comprising a first leg and a second leg, the first leg and the second leg extending laterally outward from the vertical plane; a seat connected with the frame; a front wheel rotatable about an inclined steering axis; a first rear wheel connected with the first leg and a second rear wheel connected with the second leg, each of the rear wheels configured to rotate about a rotational axis and swivel about a swivel axis; a front fork connected with the frame and rotatable about the inclined steering axis, the front fork supporting the front wheel, and the front fork comprising a first inclined support on a first lateral side of the front wheel and a second inclined support on a second lateral side of the front wheel; a handlebar connected with the front fork and configured to provide steering of the front wheel, wherein at least a portion of each of the rear wheels is positioned laterally inside a footprint of the handlebar when the vehicle is traveling in a straight line; a power source; and an electric motor operably connected with the power source, the electric motor being operably connected with the front wheel to provide rotational force to the front wheel, and the electric motor being positioned laterally between the first and second inclined supports. ### Claim 13 (depends on 12) The personal mobility vehicle of claim 12, further comprising footrest portions connected with the front fork. ### Claim 14 (depends on 13) The personal mobility vehicle of claim 13, wherein the footrest portions extend, in directions transverse to the vertical plane, beyond a width of the front fork. ### Claim 15 (depends on 12) The personal mobility vehicle of claim 12, wherein each of the rear wheels is configured to freely rotate 360 degrees about its swivel axis. ### Claim 16 (depends on 12) The personal mobility vehicle of claim 12, wherein each of the rear wheels includes a biasing mechanism configured to limit the degree of rotation of each rear wheel, and to bias each rear wheel toward a neutral steering position. ### Claim 17 (depends on 12) The personal mobility vehicle of claim 12, wherein the front wheel includes a sprocket and the electric motor transfers power to the front wheel through an endless drive loop. ### Claim 18 (depends on 12) The personal mobility vehicle of claim 12, further comprising a braking mechanism configured to apply braking force to at least one wheel of the personal mobility vehicle while simultaneously reducing power from the motor to the front wheel. ### Claim 19 (depends on 12) The personal mobility vehicle of claim 12, wherein the electric motor is fixedly attached to the front fork. ### Claim 20 (depends on 12) The personal mobility vehicle of claim 12, wherein the power source is positioned behind the seat. ### Claim 21 (depends on 12) The personal mobility vehicle of claim 12, wherein the seat comprises a generally horizontal portion.