# US 11,299,082 B2 · Dump body and dump truck

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- Number: US 11,299,082 B2
- Document ID: US11299082B2
- Status: Granted
- Kind: B2
- Application number: 16/301,848
- Filed: 2018-07-10
- Published: 2021-07-22
- Granted: 2022-04-12
- Earliest claimed: 2018-07-10
- Assignees: Komatsu Ltd.
- Applicants: Komatsu Ltd.
- Inventors: Yushi Tanaka; Kengo Aoki
- Web page: https://patentgrep.com/patent/US11299082B2

## CPC

- B60P 1/283: {Elements of tipping devices}
- B60P 1/286: {Loading buckets}
- B60K 13/04: concerning exhaust
- B60Y 2200/142: Heavy duty trucks
- B60P: VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS (vehicles with special provisions for transporting patients or disabled persons, or their personal conveyances A61G3/00)
- 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

A dump body includes: a side plate; a flow path which is provided in the side plate and through which an exhaust gas of an engine flows; an exhaust port of the exhaust gas which is provided in an outer surface of the side plate; and a guide surface which has a first inner end portion and a first outer end portion and is inclined downward toward the first outer end portion, the first inner end portion being connected to an outer surface of the side plate below the exhaust port.

## Claims

### Claim 1

A dump body comprising:
a side plate;
a flow path which is provided in the side plate and through which an exhaust gas of an engine flows;
an exhaust port for discharging exhaust gas from the flow path which is provided in an outer surface of the side plate; and
a guide surface which has a first inner end portion and a first outer end portion and is inclined downward toward the first outer end portion, the first inner end portion being connected to an outer surface of the side plate below the exhaust port;
whereby liquid dripped from the exhaust port to the first inner end portion of the guide surface flows to the first outer end portion while being guided by the guide surface by an action of gravity.

### Claim 2 (depends on 1)

The dump body according to claim 1, further comprising
an opposing surface which has a first front end portion and a first rear end portion and opposes an exhaust port, the first front end portion being connected to an outer surface of the side plate in front of the exhaust port, the first rear end portion being away from the outer surface of the side plate.

### Claim 3 (depends on 2)

The dump body according to claim 2, wherein
the first outer end portion of the guide surface and a lower end portion of the opposing surface are connected to each other.

### Claim 4 (depends on 1)

The dump body according to claim 1, further comprising
an upper surface which has a second inner end portion and a second outer end portion and is inclined downward toward the second outer end portion, the second inner end portion being connected to an outer surface of the side plate above the exhaust port.

### Claim 5 (depends on 1)

The dump body according to claim 1, further comprising
a flow regulation surface which has a second front end portion and a second rear end portion and is inclined to be away from the outer surface of the side plate toward the second rear end portion, the second front end portion being connected to an outer surface of the side plate at rear of the exhaust port.

### Claim 6 (depends on 1)

A dump truck comprising:
the dump body according to claim 1; and
a vehicle body supporting the dump body.