Title:
GUIDE PULLEY
Document Type and Number:
Japanese Patent JP3702548
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a guide pulley which is excellent in durability, miniaturization, weight-lightening and attachment/detachment of which are easy and with which a transported gold wire is smoothly guided without damaging.
SOLUTION: The main body 1 of the pulley is a annular member consisting of wear-resistant ceramic, steel base and alloy base materials and a guide groove 1a for guiding the transpoted wire is formed on the outer peripheral part. A bearing 2 is a ball bearing and its outside diameter is formed smaller than the inside diameter of the main body 1 of the pulley and into a size which is loosely fit inside the main body 1 of the pulley. Between the main body 1 of the pulley and the bearing 2, a ring 3 formed from soft materials such as synthetic resin of 'Teflon(R)' or the like is detachably interposed. Because the ring 3 is elastically deformed at the time of attaching the main body 1 of the pulley, the clearance between the main body 1 of the pulley and the bearing 2 is filled and both are fixed.
Inventors:
Toshiyuki Kubo
Application Number:
JP22674796A
Publication Date:
October 05, 2005
Filing Date:
August 28, 1996
Export Citation:
Assignee:
Sumitomo Metal Mining Co., Ltd.
International Classes:
B21K1/42; B21C1/00; B65H57/14; H01L21/60; (IPC1-7): B65H57/14; B21C1/00; B21K1/42; H01L21/60
Domestic Patent References:
| JP55050087U |
Attorney, Agent or Firm:
Yasushi Shinohara