Earth working – Mounting for pushed tool at end of motor vehicle – Transversely mounted blade
Reexamination Certificate
2007-02-13
2007-02-13
Batson, Victor (Department: 3671)
Earth working
Mounting for pushed tool at end of motor vehicle
Transversely mounted blade
C172S828000
Reexamination Certificate
active
10852192
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.
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Morita Hiroshi
Nakata Shinya
Okunishi Takayuki
Sakitani Shintaro
Shimokakiuchi Hiroshi
Batson Victor
Kobelco Construction Machinery Co., Ltd.
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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