# US 12,594,844 B2 · Electric work vehicle

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- Number: US 12,594,844 B2
- Document ID: US12594844B2
- Status: Granted
- Kind: B2
- Application number: 18/569,931
- Filed: 2022-05-17
- Published: 2024-08-29
- Granted: 2026-04-07
- Earliest claimed: 2021-06-29
- Assignees: Kubota Corporation
- Applicants: Kubota Corporation
- Inventors: Tatsuya Yamaguchi; Norio Obata; Yasuaki Morioka; Haruki Mitsui
- Web page: https://patentgrep.com/patent/US12594844B2

## CPC

- B60L 50/64: Constructional details of batteries specially adapted for electric vehicles
- B62D 25/10: Bonnets or lids {, e.g. for trucks, tractors, busses, work vehicles (for truck beds B60J7/1607; for boats B63B19/12; doors arranged at the vehicle rear B60J5/10; inlet covers for vehicle fuel tanks B60K15/05; for protecting non-occupants of a vehicle B60R21/38)}
- B60K 1/04: of the electric storage means for propulsion
- B60L 50/66: {Arrangements of batteries}
- B60K 2001/0411: {Arrangement in the front part of the vehicle}
- B60L 2200/40: Working vehicles
- B60Y 2200/221: Tractors
- B62D 25/12: Parts or details thereof (locks E05B, {E05B83/16; devices for holding open E05C17/00, e.g. while carrying oversize objects E05C17/042}; hinges E05D; counterbalancing means E05F; {checks, stops, buffers E05F5/00; } springs, {e.g. pneumatic springs} F16F)
- 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
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)
- 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
- B60Y: INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY

## Abstract

An electric work vehicle includes a battery, a motor to be driven by electric power supplied from the battery, a cover covering the battery, and a support portion supported by the battery. The cover is supported by the support portion and swingable about a horizontal axis relative to the support portion to enable opening and closing, and the support portion is supported by a side portion of the battery.

## Claims

### Claim 1

An electric work vehicle comprising:
a battery;
a motor to be driven by electric power supplied from the battery;
a cover covering the battery; and
a first support portion supported by the battery; wherein
the cover is supported by the first support portion and is swingable about a horizontal axis relative to the first support portion to enable opening and closing; and
the first support portion is supported by a side portion of the battery.

### Claim 2 (depends on 1)

The electric work vehicle according to claim 1, further comprising:
a second support portion attached to the side portion of the battery; wherein
the first support portion is supported by the side portion of the battery via the second support portion.

### Claim 3 (depends on 2)

The electric work vehicle according to claim 2, wherein the second support portion is attached to a hanging portion provided on the side portion of the battery to hang the battery.

### Claim 4 (depends on 2)

The electric work vehicle according to claim 2, wherein
the second support portion has a gate shape straddling an upper end surface of the battery;
a lower end portion of the second support portion is attached to the side portion of the battery; and
a gap is provided between the upper end surface of the battery and the second support portion.

### Claim 5 (depends on 2)

The electric work vehicle according to claim 2, further comprising:
a stepped portion provided on the side portion of the battery; wherein
the second support portion is attached to the stepped portion.

### Claim 6 (depends on 2)

The electric work vehicle according to claim 2, further comprising:
an operator portion where an operator is capable of riding; and
a third support portion provided between the operator portion and the battery; wherein
the third support portion supports an electric component of the operator portion and is supported by the battery; and
the second support portion and the third support portion are coupled to each other.

### Claim 7 (depends on 1)

The electric work vehicle according to claim 1, further comprising:
an operator portion where an operator is capable of riding; and
a third support portion provided between the operator portion and the battery; wherein
the third support portion supports an electric component of the operator portion and is supported by the battery.
