Assignee: Kabushiki Kaisha Miyanaga

Location: Miki, JP
No. of patents: 4

Number	Title	Issue Date
6250856	Quick attachment structure for drill shank A shank fitting structure simple in structure and easy to machine and assemble. A shank (20) has an external diameter large enough to allow it passage in a state where a detent member (5) is moved bach radially outward, and includes a stepped portion (21)...	06/26/2001
5284409	Expansion anchor for engagement in a hole An anchor comprising a core including first and second ends and a cylindrical portion between said ends, the first end including means for engaging with a body to be anchored, and the second end terminating in a portion which is enlarged gradually. A slee...	02/08/1994
5050286	Driving mechanism for anchor Apparatus in accordance with this invention comprises a first part adapted to be positioned in engagement with an expander of an anchor bolt, a second part adapted to be engaged by a hammer drill, and a coupling between the first and second parts. The cou...	09/24/1991
4998981	Bit for drilling an undercut hole A drill bit has an extendable and retractable undercut portion for the drilling of undercut holes, for example to accommodate anchor bolts in concrete. The device includes a drill bit (18) for drilling an initial hold (B) to a predetermined depth at which...	03/12/1991

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