Patent · US Active

Construction machine

US8714629B2 · kind B2 · utility

1Cited by

1References

4Claims

0Family size

Assignee

HITACHI CONSTRUCTION MACHINERY CO., LTD. · JP

Inventors

Naoki TAKEOKA · Kobe, JP
Tomoyuki Tanaka · Nagaoka, JP
Shogo Kimura · Koka, JP

Key dates

Filing date	Jan 6, 2012
Grant date	May 6, 2014
Priority date	—
Expiry date	Jan 6, 2032

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE02F9/16
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A canopy (23) is provided to rise in an upper revolving structure (3) for covering an upper side of an operator's seat (19). A bend portion (25B) extending in the left-right direction and projecting upward is provided in a front end side of a roof plate (25) in the canopy (23). A plate-shaped left front lifting bracket (26) is provided in a left front connecting portion (24J), and a plate-shaped right front lifting bracket (27) is provided in a right front connecting portion (24L). The left and right front lifting brackets (26, 27) sandwich the bend portion (25B) from both sides in the left-right direction. Further, the left and right front lifting brackets (26, 27) are provided with lifting holes (26A, 27A) and also discharging notches (26B, 27B).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.