Title:
HOLE BORING DRILL FOR GLASS
Document Type and Number:
WIPO Patent Application WO/2012/029666
Kind Code:
A1
Abstract:
The present invention is a hole boring drill for glass that bores holes by rotating while coming into contact with glass, and comprises: a tip that comes into contact with the glass, and has a curved surface at the outer peripheral edge; a peripheral section that is inserted in a hole that is formed in the glass; a shank; and a flank section which are provided with a smaller diameter than the outer diameter of the peripheral section between the peripheral section and the shank. The tip extends radially outward from the center, and has a groove that extends axially. The edge of the groove, which opens to the tip, has a chamfered shape.
Inventors:
TEI SEIKICHI (JP)
TANAKA HIROKI (JP)
NONAKA YASUSHI (JP)
TANAKA HIROKI (JP)
NONAKA YASUSHI (JP)
Application Number:
PCT/JP2011/069331
Publication Date:
March 08, 2012
Filing Date:
August 26, 2011
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
TEI SEIKICHI (JP)
TANAKA HIROKI (JP)
NONAKA YASUSHI (JP)
TEI SEIKICHI (JP)
TANAKA HIROKI (JP)
NONAKA YASUSHI (JP)
International Classes:
B28D1/14; C03B33/02
Foreign References:
| JPH02130306U | 1990-10-26 | |||
| JPH0362758U | 1991-06-19 | |||
| JPH08118124A | 1996-05-14 | |||
| JPS5786712U | 1982-05-28 | |||
| JPS54126215A | 1979-10-01 | |||
| JP2009149471A | 2009-07-09 | |||
| JP2011111370A | 2011-06-09 |
Attorney, Agent or Firm:
OGURI Shohei et al. (JP)
Shohei Oguri (JP)
Shohei Oguri (JP)
Download PDF:
Claims:
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