IP Library Granted Patent US 8,978,812
Granted Patent B2
US 8,978,812 · App. 14/232,637 · Granted Mar 17, 2015

Construction machine

Inventors: Shogo Kimura (Koka, JP); Hiroshi Tabeta (Konan, JP)
Assignee: Hitachi Construction Machinery Co., Ltd.
E02F9/16E02F9/2004B66C13/54E02F3/30E02F3/325B60N2/468
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Quick Facts
Patent No.
US 8,978,812
App. No.
14/232,637
Granted
Mar 17, 2015
Kind
B2
Abstract

An operator's seat mounting section ( 11 ) that is positioned in back side of a floor member ( 10 ) includes a seat plate ( 11 D) for mounting an operator's seat ( 14 ) and an equipment mounting part ( 11 F) that rises upward from the right side of the seat plate ( 11 D), and a right operating lever assembly ( 16 ) is provided in front of the equipment mounting part ( 11 F). A controller accommodating space ( 21 ) is provided to be positioned in back side of a console ( 16 A) of the right operating lever assembly ( 16 ) and between a side surface ( 11 F 1 ) of the equipment mounting part ( 11 F) of the operator's seat mounting section ( 11 ) and the operator's seat ( 14 ), and a controller ( 27 ) is mounted in the controller accommodating space ( 21 ) to control various kinds of electric equipment.

Claims (23)

1. A construction machine comprising:

an automotive lower traveling structure ( 2 );

an upper revolving structure ( 3 ) that is mounted on said lower traveling structure ( 2 ) to be able to revolve thereon; and

a working mechanism ( 4 ) that is tiltably mounted to said upper revolving structure ( 3 ), wherein

said upper revolving structure ( 3 ) includes:

a revolving frame ( 5 ) that forms a support structure; and

a floor member ( 10 ) that is provided on said revolving frame ( 5 ) and constitutes an operator's seat mounting section ( 11 ) at the rear side and a foot rest section ( 12 ) at the front side on which an operator rests his or her feet,

said operator's seat mounting section ( 11 ) of said floor member ( 10 ) includes a seat plate ( 11 D) for mounting an operator's seat ( 14 ) on which an operator is seated and an equipment mounting part ( 11 F) that rises upward from one side of said seat plate ( 11 D) in the right-left direction, and

an operating lever assembly ( 16 ) that is operated by the operator seated on said operator's seat ( 14 ) is provided in front of said equipment mounting part ( 11 F), characterized in that:

a controller accommodating space ( 21 ) is provided in back side of said operating lever assembly ( 16 ) and between a side surface ( 11 F 1 ) of said equipment mounting part ( 11 F) and said operator's seat ( 14 ),

a controller ( 27 ) is mounted in said controller accommodating space ( 21 ) to control various kinds of electric equipment,

a bracket member ( 22 ) is provided in back side of said operating lever assembly ( 16 ) and to said side surface ( 11 F 1 ) of said equipment mounting part ( 11 F) for mounting said controller ( 27 ) and an arm rest ( 18 ) on which an operator's arm rests, wherein

said bracket member ( 22 ) comprises a fixing side vertical plate ( 22 A) that extends in an upper-lower direction along said side surface ( 11 F 1 ) of said equipment mounting part ( 11 F) and is mounted to said side surface ( 11 F 1 ), a lower lateral plate ( 22 B) that extends inside toward said operator's seat ( 14 ) from a lower part of said fixing side vertical plate ( 22 A) and an arm rest mounting vertical plate ( 22 C) that is provided to extend in an upper direction from a tip end part of said lower lateral plate ( 22 B) to oppose said fixing side vertical plate ( 22 A) with an interval and to which said arm rest ( 18 ) is mounted, and

a part of said controller accommodating space ( 21 ) is a U-shaped space in a transverse section, which is formed with said fixing side vertical plate ( 22 A), said lower lateral plate ( 22 B) and said arm rest mounting vertical plate ( 22 C) that constitute said bracket member ( 22 ).

2. The construction machine according to claim 1 , wherein,

a controller fixing member ( 24 ) is provided to said fixing side vertical plate ( 22 A) of said bracket member ( 22 ) for fixing said controller ( 27 ), wherein

said controller ( 27 ) is fixed in a vertical arrangement state of extending in an upper-lower direction and in a front-rear direction to said controller fixing member ( 24 ).

3. The construction machine according to claim 2 , wherein,

said controller fixing member ( 24 ) comprises a flat plate ( 24 A) that extends in a front-rear direction along said side surface ( 11 F 1 ) of said equipment mounting part ( 11 F) and a pair of controller mounting frames ( 24 C, 24 D) that are provided respectively in a front side position and in a rear side position of said flat plate ( 24 A), wherein

said controller ( 27 ) is provided with mounting projections ( 28 C) in a front side position and in a rear side position of a case ( 28 ) for accommodating an electric component, and

said controller ( 27 ) is constituted such that each of said mounting projections ( 28 C) is fixed to each of said controller mounting frames ( 24 C, 24 D) by using bolts ( 30 ).

4. The construction machine according to claim 2 , wherein,

a cover member ( 31 ) for covering said controller ( 27 ) is provided, and said cover member ( 31 ) is supported by said bracket member ( 22 ) and/or said controller fixing member ( 24 ).

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 24, 2017
From: HITACHI CONSTRUCTION MACHINERY CO., LTD.
To: HITACHI CONSTRUCTION MACHINERY TIERRA CO., LTD.
Reel/Frame 041807/0804 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2014
From: KIMURA, SHOGO; TABETA, HIROSHI
To: HITACHI CONSTRUCTION MACHINERY CO., LTD.
Reel/Frame 031958/0377 →
Priority Claims (1)
JP 2011-220945 · Oct 5, 2011 · national
Continuity (1)
Related Publication 20140161578A1 · Jun 12, 2014