Title:
REMOVAL JIG
Document Type and Number:
Japanese Patent JP2021176667
Kind Code:
A
Abstract:
To provide a removal jig which can suppress impossibility of removal from a rear flange.SOLUTION: A removal jig 60 removes a rear flange attached to a tapered tip of a spindle. The rear flange has a cylindrical boss part, and a flange part which projects in a radial outer side from a rear end of the cylindrical boss part, and a female screw is formed on an inner periphery of the cylindrical boss part. The removal jig 60 comprises: a grip 61; a cylindrical engagement part 63 which is fixed to the grip 61, and on an outer periphery of which a male screw 631 engaging with the female screw of the rear flange is formed; and a projection part 64 which projects from a tip of the cylindrical engagement part 63, and presses an apical surface of the spindle. A notch 65, that elongates in a pitch direction of the male screw 631, is formed in the cylindrical engagement part 63.SELECTED DRAWING: Figure 1
Inventors:
WONG KAR HOO
Application Number:
JP2020082781A
Publication Date:
November 11, 2021
Filing Date:
May 08, 2020
Export Citation:
Assignee:
DISCO ABRASIVE SYSTEMS LTD
International Classes:
B24B45/00; B23B31/02; H01L21/301
Attorney, Agent or Firm:
Sakai International Patent Office