Title:
CORE DRILL ATTACHING/DETACHING DEVICE
Document Type and Number:
Japanese Patent JP2788615
Kind Code:
B
Abstract:
PROBLEM TO BE SOLVED: To provide a convenient core drill attaching/detaching device capable of combining core bodies of a plurality of different diameters in one operation using a common base body and efficiently drilling a hole of different diameter in a core drill capable of detaching the core body from the base body.
SOLUTION: In a core drill capable of detaching a core body 3 from a base body 1, the tip is proceeded in the rotational direction around the base body to equally and pivotably support a plurality of arms 4 in an erecting and oscillating manner, a core body combining part 8 to combine the arm tip with the inner surface of an opening end part of the core body, an adjustment member 14 is rotatably arranged on the base body, the adjustment member is connected to the arm through a motion converting mechanism 15, and the adjustment member is turned to the base body to adjust the extension position of the core body combining part to the size of the core body in a core drill attaching/detaching device.
Inventors:
Miyanaga, Masaaki
Application Number:
JP1995000178719
Publication Date:
June 05, 1998
Filing Date:
July 14, 1995
Export Citation:
Assignee:
MIYANAGA:KK
International Classes:
B23B51/04; B28D1/14; B23B51/04; B28D1/14; (IPC1-7): B23B51/04; B28D1/14
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