发明名称 |
ROTATION TOOL INSTALLATION AND REMOVAL DEVICE AND SAID ROTATION TOOL |
摘要 |
An object is to provide a rotary tool and the like, in which an occurrence of plastic deformation is suppressed even when a great rotational torque is exerted. A rotary tool B includes a cutting part 14 at its distal end portion and a shank 11 at its proximal end portion. The cutting part 14 has cutting edges that are arranged in a manner to face forward, and the shank 11 is to be inserted and attached into an insertion hole 1 of an arbor A. The shank 11 includes: engagement recesses 15 which come into engagement with locking members 2 which are provided in the arbor in such a manner as to be protrudable inwardly from the insertion hole 1; and passage recesses 18 which allow the locking members to be guided into the engagement recesses 15. The rotary tool B is configured such that falling off of the rotary tool B from the arbor A is prevented. A groove 16 is formed in the shank 11 at a portion where an engagement recess 15 is either formed or not formed. The groove 16 comes into engagement by surface contact with a protrusion 3 formed in the insertion hole 1 of the arbor A. |
申请公布号 |
EP2537611(A4) |
申请公布日期 |
2014.07.09 |
申请号 |
EP20100845705 |
申请日期 |
2010.10.25 |
申请人 |
KABUSHIKI KAISHA MIYANAGA |
发明人 |
MIYANAGA, MASAAKI |
分类号 |
B23B31/02;B23B31/107;B23Q3/12 |
主分类号 |
B23B31/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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