Title:
工具ホルダ
Document Type and Number:
Japanese Patent JP6869536
Kind Code:
B2
Abstract:
A tool holder is provided which is capable of absorbing stress applied to a tool with a simple structure. A stress absorbing mechanism 400 has an elastic part 230 provided in a body 200, a collar 410 arranged on an outer periphery side of the body 200, a support member 420 arranged on an inner periphery side of the body 200, and a position adjusting member 430 threadedly engaged with the support member 420. The elastic part 230 has a plurality of first voids extending along a circumferential direction and a plurality of second voids extending along an axial direction, the first voids and the second voids extend between a body inner peripheral surface 240 and a body outer peripheral surface 250. The collar 410 moves along the axial direction by interlocking with elastic deformation of the elastic part 230 along the axial direction. An O-ring 461 is arranged between a rear end part of the collar 410 and the body outer peripheral surface 250. The support member 420 moves along the axial direction by interlocking with axial movement of a tool 10. An O-ring 462 is arranged between a rear end part of the support member 420 and the body inner peripheral surface 240.
Inventors:
Hitoshi Ishikawa
Application Number:
JP2017098335A
Publication Date:
May 12, 2021
Filing Date:
May 17, 2017
Export Citation:
Assignee:
NT Tool Co., Ltd.
International Classes:
B23G1/46; B23B31/08
Domestic Patent References:
| JP2002046020A | ||||
| JP2018024065A |
Foreign References:
| EP1839786A1 | ||||
| EP2106869A1 |
Attorney, Agent or Firm:
Yuchi International Patent Office
Tetsuyuki Iwata
Toshiyuki Ikeda
Tetsuyuki Iwata
Toshiyuki Ikeda