The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 27, 2003

Filed:

Jun. 08, 2001
Applicant:
Inventors:

Wataru Suzuki, Ebina, JP;

Atsuyuki Kitamura, Ebina, JP;

Junichirou Sameshima, Ebina, JP;

Masaaki Tokunaga, Ebina, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G 1/502 ;
U.S. Cl.
CPC ...
G03G 1/502 ;
Abstract

There are plural subunits having a positional relationship that at least one of the subunits is located at such a position as to obstruct an operation of replacing another. There are provided positioning portions that are provided on the main body frame and position the respective subunits, and a subunit releasing mechanism that moves at least an outside subunit from a positioning and fixing position to a prescribed releasing position or a subunit fixing mechanism that holds the outside subunit at a prescribed releasing position and moves it from the released position to a prescribed, positioning and fixing position. Also provided is an axial movement prohibiting portion that prohibits in advance axial movement of a subunit before it is positioned. Further, a two-direction positioning portion is allowed to position a subunit preferentially over a one-direction positioning portion.


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