Title:
BORING DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/129310
Kind Code:
A1
Abstract:
Disclosed is a boring device wherein the installation of an air supply tube, an air supply hose, a suction tube, and a suction hose is abolished from an area that is around a drill and is at the front of the boring device, with the result that the balance quality of the boring device is improved, and that the usability and workability thereof are enhanced. Furthermore, this boring device is such that a hollow motor is used as a drive source, that a double-tube main spindle is adopted as a machine main spindle, and that as a consequence, an air supply path and a suction path can be easily built-in, resulting in the miniaturization and practicality of the boring device being improved. The main spindle, which is driven into rotation by a power source (10), is of a double-tube structure consisting of an internal passage (12a) and an external passage (12b). A drill (30) is formed in such a way that a vent hole (33) is cut along the axis of the drill (30), extending through a shank (31b) to an area in the vicinity of a blade section (32). This drill (30) is mounted on the tip of the double-tube main spindle (12). Furthermore, hood members (17, 4) which cover the outer periphery of the drill are provided. Moreover, an air supply mechanism (40) which feeds compressed air into the internal passage (12a), and a dust collection mechanism (50) which sucks air from the external passage (12b), are connected to the rear end of the double-tube main spindle (12). While compressed air is being supplied via the internal passage (12a) to an area around the drill blade section, a workpiece is drilled, with the result that drilling debris is recovered into the dust collection mechanism (50) by being sucked through the external passage (12b).
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Inventors:
KAKIMOTO Masakazu (Daiyon-toyosato biru 1F 1-410, Nakahira, Tenpaku-ku, Nagoya-sh, Aichi 14, 〒4680014, JP)
Application Number:
JP2011/059037
Publication Date:
October 20, 2011
Filing Date:
April 11, 2011
Export Citation:
Assignee:
NEXT I&D CORPORATION (2702, Kamisawa 1-chome Midori-ku, Nagoya-sh, Aichi 14, 〒4580014, JP)
ＮＥＸＴ Ｉ＆Ｄ株式会社 (〒14 愛知県名古屋市緑区神沢一丁目２７０２番地 Aichi, 〒4580014, JP)
ＮＥＸＴ Ｉ＆Ｄ株式会社 (〒14 愛知県名古屋市緑区神沢一丁目２７０２番地 Aichi, 〒4580014, JP)
International Classes:
B23B47/34; B23Q11/00
Attorney, Agent or Firm:
EICHI Patent & Trademark Corp. (45-13, Sengoku 4-chome Bunkyo-k, Tokyo 11, 〒1120011, JP)
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Claims: