Title:
DEVICE FOR CONNECTING TWO MEMBERS
Document Type and Number:
WIPO Patent Application WO/2011/155079
Kind Code:
A1
Abstract:
A pin-side engagement member (43) is provided to an end (26A) of a left connection pin (26), and a bracket-side engagement member (44) having a groove (44B) is provided to a left boom bracket (22). Also, a pin-side engagement member (46) is provided to an end (27A) of a right connection pin (27), and a bracket-side engagement member (47) having a groove (47B) is provided to a right boom bracket (23). The pin-side engagement member (43) is inserted and held in the groove (44B) with the left boom bracket (22) and a left boom foot section (24) connected by the left connection pin (26), and the pin-side engagement member (46) is inserted and held in the groove (47B) with the right boom bracket (23) and a right boom foot section (25) connected by the right connection pin (27). Thus, the left and right connection pins (26, 27) are retained against rotation relative to the left and right boom brackets (22, 23).
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Inventors:
OGASAWARA Manabu (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
小笠原 学 (〒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)
OMOTERA Kazumasa (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
表寺 和正 (〒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)
NABESHIMA Tooru (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
小笠原 学 (〒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)
OMOTERA Kazumasa (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
表寺 和正 (〒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)
NABESHIMA Tooru (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
Application Number:
JP2010/061452
Publication Date:
December 15, 2011
Filing Date:
July 06, 2010
Export Citation:
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)
OGASAWARA Manabu (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
小笠原 学 (〒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)
OMOTERA Kazumasa (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
表寺 和正 (〒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)
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)
OGASAWARA Manabu (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
小笠原 学 (〒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)
OMOTERA Kazumasa (Tsuchiura Works Hitachi Construction Machinery Co., Ltd., 650, Kandatsumachi, Tsuchiura-sh, Ibaraki 13, 〒3000013, JP)
表寺 和正 (〒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)
International Classes:
E02F9/00; E02F3/38; E04G23/08
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:
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