Construction machine

Patent metadata

Field	Value
Publication number	US-9309644-B2
Application number	US-201314403654-A
Country	US
Kind code	B2
Filing date	Mar 28, 2013
Priority date	May 28, 2012
Publication date	Apr 12, 2016
Grant date	Apr 12, 2016

Abstract

Provided is a construction machine that can realize the assurance of good vision for an operator sitting in a seat. In a wheeled excavator provided with a upperstructure ( 2 ), a seat disposed in a cab ( 7 ) mounted on the upperstructure ( 2 ), steps ( 11 ) arranged laterally to the cab ( 7 ) with the seat disposed therein and including a first step member ( 22 ), second step member ( 23 ) and third step member ( 24 ), and a compartment cover ( 13 ) arranged on a side opposite to the seat with respect to the steps ( 11 ), an arcuate upper indentation ( 13 a ) is formed in the compartment cover ( 13 ) at a part thereof that faces a space ( 25 ) defined between the third step member ( 24 ) and the second step member ( 23 ), and an arcuate lower indentation ( 13 b ) is formed in the compartment cover ( 13 ) at another part thereof that faces a space ( 26 ) defined between the second step member ( 23 ) and the first step member ( 22 ).

First claim

The invention claimed is:

1. A construction machine provided with a body, working equipment attached to the body, a seat disposed on the body, steps arranged laterally to the seat and comprising plural step members, and a compartment cover arranged on a side opposite to the seat with respect to the steps, wherein:
an indentation is formed in the compartment cover at a part thereof that faces a space defined between the plural step members.

2. The construction machine according to claim 1 , wherein:
the indentation has been formed upon press working to fabricate the compartment cover, and comprises an arcuate indentation as seen in a side view.

3. The construction machine according to claim 2 , wherein:
the steps further comprise plates on which the plural step members are secured,
the plural step members comprise an upper step member arranged at an upper position, and a lower step member arranged at a position immediately below the upper step member, and
the indentation is located at an upper extremity thereof in a neighborhood of a lower surface of the upper step member and at an lower extremity thereof in a neighborhood of an upper surface of the lower step member, and as seen in a side view, is formed such that a most indented portion thereof is as proximate as possible to the associated one of the plates.

4. The construction machine according to claim 3 , wherein:
a plurality of indentations as defined in claim 3 are formed along a direction to arrangement of the steps.

5. The construction machine according to claim 1 , wherein:
the construction machine has a cab, in which the seat is disposed, on a left side of the body, the working equipment on a right side of the cab, the steps on a right side of the working equipment, and the compartment cover on a right side of the steps, all as viewed toward a front of the body, and control valves that control flows of hydraulic oil to actuators are disposed in an accommodation space formed by the steps and the compartment cover.

6. The construction machine according to claim 2 , wherein:
the construction machine has a cab, in which the seat is disposed, on a left side of the body, the working equipment on a right side of the cab, the steps on a right side of the working equipment, and the compartment cover on a right side of the steps, all as viewed toward a front of the body, and control valves that control flows of hydraulic oil to actuators are disposed in an accommodation space formed by the steps and the compartment cover.

7. The construction machine according to claim 3 , wherein:
the construction machine has a cab, in which the seat is disposed, on a left side of the body, the working equipment on a right side of the cab, the steps on a right side of the working equipment, and the compartment cover on a right side of the steps, all as viewed toward a front of the body, and control valves that control flows of hydraulic oil to actuators are disposed in an accommodation space formed by the steps and the compartment cover.

8. The construction machine according to claim 4 , wherein:
the construction machine has a cab, in which the seat is disposed, on a left side of the body, the working equipment on a right side of the cab, the steps on a right side of the working equipment, and the compartment cover on a right side of the steps, all as viewed toward a front of the body, and control valves that control flows of hydraulic oil to actuators are disposed in an accommodation space formed by the steps and the compartment cover.

Assignees

• Hitachi Construction Machinery
• Hitachi Construction Machinery

Inventors

• UEKI Tsuyoshi
• Hiraoka Kazuhiko

Classifications

• E02F9/0891

  Lids or bonnets or doors or details thereof (doors for cabins E02F9/163 takes precedence; for motor vehicles B62D25/10) · CPC title

• E02F9/26

  Indicating devices {(E02F5/145 takes precedence)} · CPC title

• E02F9/16 Primary

  Cabins, platforms, or the like, for drivers ({for motor vehicles in general B62D33/06}, for cranes B66C13/54) · CPC title

• E02F9/0875

  Arrangement of valve arrangements on superstructures (arrangement of hydraulic hoses E02F9/2275 takes precedence; valves per se E02F9/2267) · CPC title

• B60R3/00 Primary

  Arrangements of steps {or ladders facilitating access to or on the vehicle}, e.g. running-boards ({construction of steps for railway vehicles B61D23/00} ; ladders E06C) · CPC title