To provide a short tool accommodation structure capable of transmitting high torque with less wear.
This tool accommodation structure has an accommodation sleeve 3 opening at a coaxial radial dimension R along the axis A of the tool 2. The accommodation sleeve 3 has a guide inner surface 12 in which the radial dimension R portion at least partially and constantly extends along the tool axis A. In the accommodation sleeve 3, there are provided at least three rotation transmitting grooves 5 at least at angular intervals of 0°, 120°, and 240° and at least one locking body 6 which is positioned between the two rotation transmitting grooves 5 adjacent to each other, and which can move freely in the radial direction to radial dimension R portion at a position facing in a diametrical direction to the other third rotation transmitting groove 5. The accommodation sleeve 3 is opened for the portion of the coaxial radial dimension R, and perspective center angle α of the rotation transmitting groove 5 is set to at least 40° , respectively.
| WO/2014/004869 | SLIDE HAMMER DEVICE AND METHODS OF USING SAME |
BRITTEN WERNER
| JPH08300269A | 1996-11-19 | |||
| JPH02212005A | 1990-08-23 |
| DE3843465A1 | 1990-06-28 | |||
| DE3941646A1 | 1991-06-20 | |||
| DE2551125A1 | 1977-05-26 |
Kazuaki Takami
Hiroshi Tokunaga
Yoshiyuki Iwasa
Shiro Fujitani
Kiyoshi Kuruma
Kazuyuki Tomita
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