Rotary drive device of a polishing device

Details Rotary drive device of a polishing device Rotary drive device of a polishing device

2005-06-28

2005-06-28

Shakeri, Hadi (Department: 3723)

Abrading

Machine

Combined

C451S259000, C451S285000

Reexamination Certificate

active

06910955

ABSTRACT:
A polishing device having a table connected to a traction drive type reduction gear. The reduction gear includes an externally contacting shaft formed in a ring-shaped hollow cylinder and arranged at the center; a plurality of intermediate shafts which are equidistantly disposed at the circumference of the externally contacting shaft, at least one of which is an input shaft; and an internally contacting cylinder with which the intermediate shafts internally contact, and under free conditions, the externally contacting shaft formed in a hollow cylinder has a diameter which is a little bit larger than a diameter of an imaginary circle which externally contacts with a plurality of intermediate shafts whereby pressing load is created by means of deformation of the hollow cylinder.

REFERENCES:
patent: 4483216 (1984-11-01), Takahashi et al.
patent: 6280304 (2001-08-01), Nakamura et al.
patent: 62-78260 (1987-05-01), None
patent: 8-167585 (1996-06-01), None

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