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:
Jul. 07, 2009
Filed:
Dec. 26, 2003
Noriyuki Asahara, Nishitokyo, JP;
Toru Takahashi, Nagano, JP;
Yoshiaki Hirakawa, Nagano, JP;
Yosuke Ando, Nishitokyo, JP;
Toshiyuki Suzuki, Nishitokyo, JP;
Umeo Tsuyusaki, Nagano, JP;
Noriyuki Asahara, Nishitokyo, JP;
Toru Takahashi, Nagano, JP;
Yoshiaki Hirakawa, Nagano, JP;
Yosuke Ando, Nishitokyo, JP;
Toshiyuki Suzuki, Nishitokyo, JP;
Umeo Tsuyusaki, Nagano, JP;
Citizen Holdings Co., Ltd., Nishitokyo-Shi, Tokyo, JP;
Abstract
An automatic lathe 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 guide bush support table, a support table fixing device for fixing the guide bush support table, a guide member rotatably installed on the guide bush support table so as not to move forward and backward, a guide bush detachably fitted to the tip of the guide member, a driving device for rotating the guide bush, a rotation transmission device for transmitting the rotation of the guide member to the spindle, and a spindle moving device for moving the spindle forward and backward within the guide member. A spindle fixing device positions and fixes the spindle at a specified position on the guide bush support table when the guide bush is removed from the guide member.