Title:
SHANK ATTACHING DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/056455
Kind Code:
A1
Abstract:
A shank attaching device that can transmit relatively large torque and that is
considerably reduced in size. The shank attaching device is used to attach a core
drill (50) to a rotating part of a drill device. The shank attaching device has
an arbor (1) and a shank (2). The arbor (1) is detachable from the rotating part.
The arbor (1) and the shank (2) are detachable from each other. The shank (2) is
detachable from the core drill (50). Engagement of the locking member (17) of
the arbor (1) with the locking groove (21A) of the shank (2) locks axial movement
of the shank (2) away from the arbor (1). Engagement of the first engagement part
(12G) of the arbor (1) with the first engaged part (20G) of the shank (2) enables
rotational torque of the arbor (1) to be transmitted to the shank (2). The shank
(2) abuts on the arbor (1) to lock axial movement of the shank (2) in the direction
of approaching the arbor (1).
Inventors:
MIYANAGA, Masaaki (())
Application Number:
JP2007/057428
Publication Date:
May 15, 2008
Filing Date:
April 03, 2007
Export Citation:
Assignee:
KABUSHIKI KAISHA MIYANAGA (2393, Fukui Miki-sh, Hyogo 33, 6730433, JP)
株式会社ミヤナガ (〒33 兵庫県三木市福井２３９３番地 Hyogo, 6730433, JP)
株式会社ミヤナガ (〒33 兵庫県三木市福井２３９３番地 Hyogo, 6730433, JP)
International Classes:
B23B31/02; B23B51/04
Attorney, Agent or Firm:
SUMIDA, Yoshihiro et al. (PATENT CORPORATE BODY ARCO PATENT OFFICE, 3rd Fl. Bo-eki Bldg.,123-1, Higashimachi, Chuo-ku,Kobe-sh, Hyogo 31, 6500031, JP)
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