Title:
WHEEL LOADER
Document Type and Number:
WIPO Patent Application WO/2012/086521
Kind Code:
A1
Abstract:
A wheel loader is provided with a cooling chamber (7) in which a cooling fan and a cooling device are housed, and a grille (12) through which cooling air obtained by the cooling fan passes. The grille (12) is provided with: a frame body (16) comprising four peripheral sides; and an air permeable section (17) consisting of perforated metal, the air permeable section (17) having a large number of suction holes and provided within the frame body (16). The air permeable section (17) is formed in a stair-like shape having vertically arranged steps formed by plastically working the perforated metal, and has a three-dimensionally curved surface protruding in two directions toward the outside of the cooling chamber (7).
Inventors:
NAITO TORU (JP)
TANAKA YUTAKA (JP)
TANAKA YUTAKA (JP)
Application Number:
PCT/JP2011/079089
Publication Date:
June 28, 2012
Filing Date:
December 15, 2011
Export Citation:
Assignee:
KOMATSU MFG CO LTD (JP)
NAITO TORU (JP)
TANAKA YUTAKA (JP)
NAITO TORU (JP)
TANAKA YUTAKA (JP)
International Classes:
B60K11/04; B60K11/08; B60R19/52; E02F9/00
Domestic Patent References:
| WO2009017749A1 | 2009-02-05 | |||
| WO2009017749A1 | 2009-02-05 |
Foreign References:
| JP2001026222A | 2001-01-30 | |||
| US2542238A | 1951-02-20 | |||
| DE4315163A1 | 1994-11-10 | |||
| JP2004352089A | 2004-12-16 | |||
| JP2001342644A | 2001-12-14 |
Other References:
See also references of EP 2540546A4
Attorney, Agent or Firm:
KINOSHITA & ASSOCIATES (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
Bottom intellectual property office of patent business corporation Tatsuyuki (JP)
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Claims:
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