Is a
Patent attributes
Patent Applicant
0
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Atsuyuki Kikuchi0
Date of Patent
September 6, 2005
0Patent Application Number
110133490
Date Filed
December 17, 2004
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A projected portion provided at a cylinder and projected in a radius direction is formed at an end face thereof on a side of a tool holding portion, and a holding portion on one side of holding portions for holding an outer periphery of the cylinder by at least two portions remote from each other in an axial direction to position in the radius direction of the cylinder is configured by a guide face having an inner diameter of a dimension substantially the same as an outer diameter of the projected portion and extended over to a contact face brought into contact with the projected portion from an end face of a cylinder case on a side of the tool holding portion.
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