Title:
TOOL HOLDER
Document Type and Number:
Japanese Patent JP2018140481
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a tool holder capable of stably holding a tool while maintaining mounting accuracy with a simple structure.SOLUTION: A tool holder 100 includes: a body section 200; and a sleeve 300. The body section 200 has a first through hole 270. The sleeve 300 has a second through hole 380 and has a first holding sleeve portion 361 and a second holding sleeve portion 362, which are elastically deformable in the radial direction on both sides in an axial direction with respect to the second through hole 380. When the sleeve section 300 is inserted into a body section inside space 220 which is formed inside the body section 200, the first through hole 270 is communicated with the second through hole 380. Each coming-off prevention pin 280 is movably arranged in the first through hole 270 and the second through hole 380. An end 283 of the coming-off prevention pin 280 abuts on an end wall surface 443 on a rear end side of a cutout surface 440 formed in the tool 400, thereby preventing coming-off of the tool 400.SELECTED DRAWING: Figure 2
Inventors:
NARISAWA YASUHIRO
Application Number:
JP2017037635A
Publication Date:
September 13, 2018
Filing Date:
February 28, 2017
Export Citation:
Assignee:
NT TOOL KK
International Classes:
B23B31/107; B23B31/117; B23Q3/12
Foreign References:
| US20130119618A1 | 2013-05-16 |
Attorney, Agent or Firm:
Tetsuyuki Iwata
Toshiyuki Ikeda
Toshiyuki Ikeda