Title:
ROTARY TOOL
Document Type and Number:
WIPO Patent Application WO/2021/131495
Kind Code:
A1
Abstract:
Provided is a rotary tool with a compact tip tool holding portion (80). The rotary tool is provided with a sleeve (81) attached to an output shaft (41) to switch a tip tool (70) between a fixed state and a detachable state. The output shaft (41) has a through hole (46) formed therein radially penetrating from the inside to the outside of a mounting hole thereof. The through hole (46) has a steel ball (85) provided therein such that at least a part of the steel ball (85) overlaps at least a part of a case (10). The sleeve (81) defines a first position in the outward direction of the steel ball (85), while the case (10) regulates a second position on the radially outer side of the first position.
Inventors:
TAMURA KENGO (JP)
TOUKAIRIN JUNICHI (JP)
TAKEUCHI SHOTA (JP)
TOUKAIRIN JUNICHI (JP)
TAKEUCHI SHOTA (JP)
Application Number:
PCT/JP2020/044286
Publication Date:
July 01, 2021
Filing Date:
November 27, 2020
Export Citation:
Assignee:
KOKI HOLDINGS CO LTD (JP)
International Classes:
B25B21/00; B23B31/107; B23B45/02; B23Q3/12; B25B21/02
Domestic Patent References:
| WO2018163561A1 | 2018-09-13 |
Foreign References:
| JP2009248210A | 2009-10-29 | |||
| DE102017209160A1 | 2018-12-06 |
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