Abstract

A sleeve-component extracting jig according to the present invention is configured to include an engagement part on which a thread engageable with an inner circumferential surface of a sleeve component is formed, wherein a taper surface configured by cutting off crests of the thread to lower a height of the thread toward a leading end of the engagement part, and a plurality of clearance grooves open at the leading end of the engagement part and arranged at equal angular intervals in a circumferential direction of the engagement part are formed in the engagement part, a length of a radius of the engagement part at an end position of the taper surface is a sum of a length obtained by multiplying a thickness of the sleeve component by a digging ratio (20%˜60%) and a length of an inside radius of the inner circumferential surface of the sleeve component.

IPC Classes  ?

• B25B 27/073 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races employing screw and nut means
• B25B 27/06 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races