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.
Patent No.:
Date of Patent:
Dec. 16, 2008
Filed:
Dec. 26, 2003
Hiroshi Shinohara, Nishitokyo, JP;
Toru Takahashi, Nagano, JP;
Yoshiaki Hirakawa, Nagano, JP;
Yosuke Ando, Nishitokyo, JP;
Hajime Matsumaru, Nagano, JP;
Hiroshi Shinohara, Nishitokyo, JP;
Toru Takahashi, Nagano, JP;
Yoshiaki Hirakawa, Nagano, JP;
Yosuke Ando, Nishitokyo, JP;
Hajime Matsumaru, Nagano, JP;
Citizen Holdings Co., Ltd., Tokyo, JP;
Abstract
An automatic lathe is provided which is capable of rapidly and easily switching between machining of a material with a guide bush and machining of the material without the guide bush. The automatic lathe has a head stock () and a guide bush support table (). The head stock () is provided with a spindle drive motor (). The guide bush support table () is provided with a guide bush rotating motor (). There are provided: support table fixing means () for positioning and fixing the guide bush support table (); a guide member () rotatably installed on the guide bush support table () and regulated so as not to move forward and backward and having a through-hole formed for a spindle () to be inserted therein; a guide bush () detachably fitted to the tip of the guide member (); and spindle fixing means () for positioning and fixing the spindle () on the guide bush support table () at a specified position when the guide bush () is removed from the guide member ().