Title:
STRUCTURE FOR WELDING RING GEAR AND DIFFERENTIAL CASE
Document Type and Number:
WIPO Patent Application WO/2011/158330
Kind Code:
A1
Abstract:
A welding structure (10) is configured in such a manner that a first abutting surface (1a) of a differential case (1) and a second abutting surface (2a) of a ring gear (2) are abutted against each other, the ends of the abutted portions are welded by deposited metal (5, 6), an ultrasonic wave is applied to the welded portions (7, 8) which are welded by the deposited metal, and the length of the welded portions (7, 8) are tested by analyzing a reflected echo from a reflection source. A space (S1) having a width greater than the wavelength of the ultrasonic wave is formed between the first abutting surface (1a) and the second abutting surface (2a), and the space is formed by a groove (1b) formed in either the first abutting surface (1a) and/or the second abutting surface (2a). Ends (5a, 6a) of the deposited metal (5, 6) are exposed to the space (S1), and this allows the lengths (D1, D2) of the welded portions (7, 8) to be accurately tested.
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Inventors:
FUJIMOTO Masahiro (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
藤本 雅大 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
UCHIDA Keisuke (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
内田 圭亮 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
IWATANI Shingo (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
岩谷 信吾 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
ENDO Takahito (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
藤本 雅大 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
UCHIDA Keisuke (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
内田 圭亮 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
IWATANI Shingo (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
岩谷 信吾 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
ENDO Takahito (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
Application Number:
JP2010/060128
Publication Date:
December 22, 2011
Filing Date:
June 15, 2010
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho, Toyota-shi Aichi, 71, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
FUJIMOTO Masahiro (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
藤本 雅大 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
UCHIDA Keisuke (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
内田 圭亮 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
IWATANI Shingo (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
岩谷 信吾 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
トヨタ自動車株式会社 (〒71 愛知県豊田市トヨタ町１番地 Aichi, 〒4718571, JP)
FUJIMOTO Masahiro (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
藤本 雅大 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
UCHIDA Keisuke (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
内田 圭亮 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
IWATANI Shingo (1 Toyota-cho, Toyota-sh, Aichi 71, 〒4718571, JP)
岩谷 信吾 (〒71 愛知県豊田市トヨタ町１番地 トヨタ自動車株式会社内 Aichi, 〒4718571, JP)
International Classes:
B23K33/00; B23K31/00; F16H55/17; F16H57/02; G01B17/00; B23K9/00; G01N29/04
Attorney, Agent or Firm:
COSMOS PATENT OFFICE (Annex 2nd Floor, Nagoya Center Building 2-22, Nishiki 2-chome, Naka-ku, Nagoya-sh, Aichi 03, 〒4600003, JP)
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