Title:
GRINDING TOOL
Document Type and Number:
WIPO Patent Application WO/2011/065462
Kind Code:
A1
Abstract:
A grinding tool comprises: a support plate (11), an annular grindstone mounting plate (14) which is supported under the support plate by means of an annular connection section (12) so as to be parallel to the support plate with a gap formed therebetween and which has an annular grindstone (13) mounted to the lower surface thereof; and an ultrasonic vibrator which is affixed to the grindstone mounting plate. The inner peripheral edge of the upper annular connection surface (12a) of the annular connection section (12) is located on the outer peripheral side of the outer peripheral edge of the lower annular connection surface (12b) of the annular connection section (12). An annular air phase containing region (18), which is formed by multiply forming annular air phase containing band regions (16, 17) in the radial direction of the connection section (12), is provided between the inner peripheral edge of the upper annular connection surface (12a) of the annular connection section (12) and the outer peripheral edge of the lower annular connection surface (12b) of the annular connection section (12). The annular air phase containing region (18) is provided so as to prevent the ultrasonic vibration generated by the ultrasonic vibrator from being transmitted in the direction parallel to the grindstone mounting surface to the region on the outer peripheral side of the annular air phase containing region (18) of the connection section (12). In the grinding tool, the ultrasonic vibration generated by the ultrasonic vibrator can be efficiently applied to the grindstone.
Inventors:
OHNISHI, Kazumasa (121-35, Hanazonohigashi 2-chome Nagaoka-sh, Niigata 46, 〒9400846, JP)
大西 一正 (〒46 新潟県長岡市花園東２丁目１２１番地３５ Niigata, 〒9400846, JP)
大西 一正 (〒46 新潟県長岡市花園東２丁目１２１番地３５ Niigata, 〒9400846, JP)
Application Number:
JP2010/071090
Publication Date:
June 03, 2011
Filing Date:
November 26, 2010
Export Citation:
Assignee:
UWAVE CO., LTD. (121-35, Hanazonohigashi 2-chome Nagaoka-sh, Niigata 46, 〒9400846, JP)
有限会社ＵＷＡＶＥ (〒46 新潟県長岡市花園東二丁目１２１番地３５ Niigata, 〒9400846, JP)
DISCO Corporation (13-11, Omori-Kita 2-chome Ota-k, Tokyo 80, 〒1438580, JP)
株式会社ディスコ (〒80 東京都大田区大森北二丁目１３番１１号 Tokyo, 〒1438580, JP)
有限会社ＵＷＡＶＥ (〒46 新潟県長岡市花園東二丁目１２１番地３５ Niigata, 〒9400846, JP)
DISCO Corporation (13-11, Omori-Kita 2-chome Ota-k, Tokyo 80, 〒1438580, JP)
株式会社ディスコ (〒80 東京都大田区大森北二丁目１３番１１号 Tokyo, 〒1438580, JP)
International Classes:
B24B1/04
Attorney, Agent or Firm:
YANAGAWA, Yasuo et al. (Mitsuya-Yotsuya Building 8th Floor, 2-14 Yotsuya, Shinjuku-k, Tokyo 04, 〒1600004, JP)