Hydraulic excavator

Patent metadata

Field	Value
Publication number	US-2016305089-A1
Application number	US-201615194899-A
Country	US
Kind code	A1
Filing date	Jun 28, 2016
Priority date	Nov 13, 2012
Publication date	Oct 20, 2016
Grant date	—

Abstract

A hydraulic excavator includes a revolving unit revolvably mounted on a traveling unit. A counterweight is disposed on a rear end part of the revolving unit. An engine compartment is disposed in front of the counterweight on the revolving unit. An equipment compartment is disposed in front of the engine compartment on the revolving unit. A Global Navigation Satellite System (GNSS) antenna supporting part is fixed on the equipment compartment.

First claim

What is claimed is:

1 . A hydraulic excavator, comprising:
a revolving unit revolvably mounted on a traveling unit; a counterweight disposed on a rear end part of the revolving unit; an engine compartment disposed in front of the counterweight on the revolving unit; an equipment compartment disposed in front of the engine compartment on the revolving unit; and a Global Navigation Satellite System (GNSS) antenna supporting part fixed on the equipment compartment.

2 . The hydraulic excavator according to claim 1 , wherein an antenna is removably attached to the GNSS antenna supporting part.

3 . The hydraulic excavator according to claim 2 , wherein the antenna is a GNSS antenna.

4 . The hydraulic excavator according to claim 1 , wherein the GNSS antenna supporting part is disposed rearward of a cab disposed in front of the engine compartment.

5 . The hydraulic excavator according to claim 1 , wherein the GNSS antenna supporting part is disposed adjacent a handrail provided at an edge of a passage deployed on the upper surface of the revolving unit.

6 . The hydraulic excavator according to claim 1 , wherein an engine hood is disposed above the engine compartment, the GNSS antenna supporting part being disposed forward of the engine hood.

7 . A hydraulic excavator, comprising:
a revolving unit revolvably mounted on a traveling unit; a counterweight disposed on a rear end part of the revolving unit; an engine compartment disposed in front of the counterweight on the revolving unit; a cab disposed in front of the engine compartment on the revolving unit; an equipment compartment disposed between the engine compartment and the cab on the revolving unit, an upper surface of the equipment compartment having a substantially flat area; and a first Global Navigation Satellite System (GNSS) antenna supporting part configured to support a first GNSS antenna, the first GNSS antenna being disposed over the substantially flat area.

8 . The hydraulic excavator according to claim 7 , further comprising
a second GNSS antenna supporting part configured to support a second GNSS antenna located on the right side of a front-rear center line of the hydraulic excavator; the first GNSS antenna supporting part being located on the left side of the front-rear center line of the hydraulic excavator.

9 . The hydraulic excavator according to claim 8 , wherein
the first GNSS antenna supporting part is disposed at an edge of the substantially flat area.

10 . The hydraulic excavator according to claim 8 , wherein
at least a part of the second GNSS antenna supporting part is disposed on the engine compartment.

Assignees

• Komatsu Mfg Co Ltd

Inventors

• Nishimura Minetaka

Classifications

• E02F9/18

  Counterweights {(for cranes B66C23/72, for tractors B62D49/085)} · CPC title

• G01S19/42

  Determining position · CPC title

• E02F9/0858 Primary

  Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units (E02F9/16, E02F9/18 take precedence) · CPC title

• E02F9/0866 Primary

  Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment · CPC title

• E02F3/32

  working downwardly and towards the machine, e.g. with backhoes · CPC title