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Patent Searching and Data


Title:
TRACK FRAME FOR TRACK TYPE VEHICLE
Document Type and Number:
WIPO Patent Application WO/2012/008189
Kind Code:
A1
Abstract:
The inner upper plate (18B) of an inner plate (18) which forms an idler wheel bracket (17) is tilted obliquely downward from the idler wheel (6) side toward the rising plate (18A) of the inner plate (18). The outer upper plate (19B) of an outer plate (19) is tilted obliquely downward from the idler wheel (6) side toward the rising plate (19A) of the outer plate (19). As a result, the inner plate (18) and the outer plate (19) are symmetric about the idler wheel (6) in the left-right direction. The configuration causes the cross-sectional strength of the inner plate (18) secured to a connection flange (16) and the cross-sectional strength of the outer plate (19) to be equal, so that the durability of the idler wheel bracket (17) is increased.

Inventors:
NAMAI Yoshio (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
生井 喜雄 (〒13 茨城県土浦市神立町650番地 日立建機株式会社 土浦工場 知的財産部内 Ibaraki, 〒3000013, JP)
Application Number:
JP2011/059007
Publication Date:
January 19, 2012
Filing Date:
April 11, 2011
Export Citation:
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Assignee:
Hitachi Construction Machinery Co., Ltd. (5-1 Koraku 2-chome, Bunkyo-ku Tokyo, 04, 〒1120004, JP)
日立建機株式会社 (〒04 東京都文京区後楽二丁目5番1号 Tokyo, 〒1120004, JP)
NAMAI Yoshio (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
International Classes:
B62D55/10; B62D55/14; B62D55/30
Attorney, Agent or Firm:
HIROSE Kazuhiko (4F. HAP Nishishinjuku Bldg, 1-2 Nishishinjuku 3-chome, Shinjuku-k, Tokyo 23, 〒1600023, JP)
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Claims: