The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 13, 2007
Filed:
May. 25, 2004
Takayuki Okunishi, Hiroshima, JP;
Shinya Nakata, Hiroshima, JP;
Hiroshi Shimokakiuchi, Hiroshima, JP;
Hiroshi Morita, Hiroshima, JP;
Shintaro Sakitani, Hiroshima, JP;
Yoshiyasu Umezu, Hiroshima, JP;
Takayuki Okunishi, Hiroshima, JP;
Shinya Nakata, Hiroshima, JP;
Hiroshi Shimokakiuchi, Hiroshima, JP;
Hiroshi Morita, Hiroshima, JP;
Shintaro Sakitani, Hiroshima, JP;
Yoshiyasu Umezu, Hiroshima, JP;
Kobelco Construction Machinery Co., Ltd., Hiroshima, JP;
Abstract
The present invention provides a hydraulic excavator provided with a dozer device comprising an arm having a rear end connected to a fulcrum portion provided on a lower frame of a lower traveling body, a dozer blade provided at an extreme end of the arm, and a dozer cylinder for swinging the arm in vertical direction, characterized in that the dozer cylinder and the arm are arranged in a state of forming two sides of a triangle as viewed from the side, the arm swings vertically so that the dozer cylinder does not interfere with a bottom of an upper rotating body rotatably mounted on the lower traveling body, and an approach angle when the dozer blade vertically moved by the arm is placed in the highest position is set to 35 degrees or more, thereby capable of securing travelability equal to an excavator without a dozer device.