(19)
(11) EP 1 091 049 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.04.2002 Bulletin 2002/14

(43) Date of publication A2:
11.04.2001 Bulletin 2001/15

(21) Application number: 00121772.8

(22) Date of filing: 05.10.2000
(51) International Patent Classification (IPC)7: E02F 9/08, E02F 9/16
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
Designated Extension States:
AL LT LV MK RO SI

(30) Priority: 07.10.1999 JP 28703899

(71) Applicant: Kobleco Construction Machinery Co., Ltd.
Hiroshima-shi, Hiroshima 731-0138 (JP)

(72) Inventor:
  • Matsunami, Toshiharu, Shinko Engineering Co., Ltd.
    Ogaki-shi, Gifu, 503-0932 (JP)

(74) Representative: Leson, Thomas Johannes Alois, Dipl.-Ing. et al
Patentanwälte Tiedtke-Bühling-Kinne & Partner, Bavariaring 4
80336 München
80336 München (DE)

   


(54) Hydraulic excavator


(57) There are provided a excavator body, a cabin provided on the upper surface, a work attachment mounted on the front part of said excavator body, and railings and roof supports forward of the cabin and rearward of a boom constituting the work attachment, the boom being arranged not to interfere with the roof supports in the whole rising and falling operating range over the whole swing operating range. Thereby, the maximum stand-up angle of he boom is enlarged to a specification angle, and the minimum rotating radius of the upper construction body including the work attachment is reduced to secure necessary railing function, enabling installation of a roof naturally in a minimum space.






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