# US 12,594,830 B2 · Electric work vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,594,830 B2 - Document ID: US12594830B2 - Status: Granted - Kind: B2 - Application number: 18/532,075 - Filed: 2023-12-07 - Published: 2025-05-01 - Granted: 2026-04-07 - Earliest claimed: 2023-10-30 - Assignees: Kubota Corporation - Applicants: Kubota Corporation - Inventors: David Kieke - Web page: https://patentgrep.com/patent/US12594830B2 ## CPC - B60K 17/28: characterised by arrangement, location, or type of power take-off - B60K 1/02: comprising more than one electric motor - B60K 1/04: of the electric storage means for propulsion - B60K 7/0007: {the motor being electric} - B60L 1/00: Supplying electric power to auxiliary equipment of vehicles (circuit arrangements for charging batteries H02J7/00) - B60L 50/66: {Arrangements of batteries} - F16H 57/02: Gearboxes; Mounting gearing therein - B60K 2007/0061: {the motor axle being parallel to the wheel axle} - B60Y 2200/223: Ridable lawn mowers - F16H 2057/02034: {Gearboxes combined or connected with electric machines} - F16H 2057/02052: {Axle units; Transfer casings for four wheel drive} - F16H 2057/02056: {for utility vehicles, e.g. tractors or agricultural machines} - B60K: ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES - 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 - F16H: GEARING - B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY ## Abstract An electric work vehicle includes a rear housing, a motor to drive a rear wheel through a gearing, the motor being supported by the rear housing, and a Power Take-Off (PTO) motor to drive a PTO, the PTO motor being supported by the rear housing. The PTO motor is located forward of the motor in a front-rear direction of the electric work vehicle. ## Claims ### Claim 1 An electric work vehicle comprising: a rear housing; a first motor to drive a first rear wheel through a first gearing, the first motor being supported by the rear housing; a Power Take-Off (PTO) motor to drive a PTO, the PTO motor being supported by the rear housing; and a second motor; wherein the PTO motor is located forward of the first motor in a front-rear direction of the electric work vehicle; the second motor is operable to drive a second rear wheel and is supported by the rear housing; the second motor is connected to a second gearing to drive the second rear wheel; and the first gearing and the second gearing are operable to rotate independently from each other. ### Claim 2 (depends on 1) The electric work vehicle according to claim 1, wherein the rear housing houses the first motor and the PTO motor; and the PTO motor is connected to a front wall of the rear housing. ### Claim 3 (depends on 1) The electric work vehicle according to claim 1, wherein the PTO includes a PTO input shaft; and the PTO input shaft is located lower than an axis of the first motor in an up-down direction of the electric work vehicle. ### Claim 4 (depends on 3) The electric work vehicle according to claim 3, wherein the PTO input shaft is located above an axis of the PTO motor in the up-down direction of the electric work vehicle. ### Claim 5 (depends on 3) The electric work vehicle according to claim 3, wherein the PTO input shaft is offset from an axis of the PTO motor in a left-right direction of the electric work vehicle. ### Claim 6 (depends on 1) The electric work vehicle according to claim 1, wherein the PTO includes a PTO reduction gear; and the PTO motor has a diameter which is larger than a diameter of the PTO reduction gear. ### Claim 7 (depends on 1) The electric work vehicle according to claim 1, wherein the PTO includes a PTO output shaft, and an axis of the PTO motor is below an axis of the PTO output shaft in the up-down direction of the electric work vehicle. ### Claim 8 (depends on 1) The electric work vehicle according to claim 1, further comprising: a battery housing; wherein the rear housing is connected to a rear surface of the battery housing. ### Claim 9 (depends on 8) The electric work vehicle according to claim 8, further comprising: an inverter connected to the PTO motor; wherein the inverter is attached to the battery housing. ### Claim 10 (depends on 1) The electric work vehicle according to claim 1, wherein an axis of the PTO motor extends through a location between the first motor and the second motor. ### Claim 11 (depends on 1) The electric work vehicle according to claim 1, wherein an axis of the PTO motor extends perpendicular to an axis of the first motor and an axis of the second motor. ### Claim 12 (depends on 1) The electric work vehicle according to claim 1, wherein an axis of the PTO motor is lower than an axis of the first motor and an axis of the second motor in an up-down direction of the electric work vehicle. ### Claim 13 (depends on 1) The electric work vehicle according to claim 1, wherein an axis of the second motor is collinear with an axis of the first motor. ### Claim 14 (depends on 1) The electric work vehicle according to claim 1, wherein the PTO motor is located closer to one of the first motor or the second motor and farther from another one of the first motor or the second motor. ### Claim 15 (depends on 1) The electric work vehicle according to claim 1, wherein the PTO motor is larger than each of the first motor and the second motor. ### Claim 16 (depends on 1) The electric work vehicle according to claim 1, wherein an outermost portion of the first gearing is located to inside of the first motor in a left-right direction of the electric work vehicle; and an outermost portion of the second gearing is located to inside of the second motor in the left-right direction of the electric work vehicle. ### Claim 17 (depends on 16) The electric work vehicle according to claim 16, further comprising: a gear casing affixed to a portion of the rear housing; wherein a portion of the first gearing and a portion of the second gearing are located within the gear casing. ### Claim 18 (depends on 17) The electric work vehicle according to claim 17, wherein a width of the gear casing in the left-right direction of the vehicle is thinner than a width of the rear housing in the left-right direction. ### Claim 19 (depends on 17) The electric work vehicle according to claim 17, wherein the first rear wheel and the second rear wheel are connected to respective rear wheel hubs which are mounted to the gear casing.