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:
Jun. 22, 1993
Filed:
Jun. 01, 1992
Koichi Saeda, Higashiosaka, JP;
Shunji Sakura, Kyoto, JP;
Tatsuya Hirai, Itami, JP;
Yuko Sanada, Daito, JP;
Tsubakimoto Chain Co., Osaka, JP;
Abstract
A work rotating apparatus for laser machining has a reduction unit with input and output shafts, and a motor for rotating the input shaft. The output shaft is a hollow shaft having an axial through hole. A work holder, mounted on the output shaft, also has a through hole aligned with the through hole of the output shaft. A long workpiece can be held in the work holder with a part of the workpiece extending through the through hole of the work holder and into or through the through hole of the hollow output shaft. This enables the workpiece to be held more stably and securely, and allows the portion of the workpiece which is being machined to be positioned close to the work holder. In one version, the reduction unit is supported by mounting legs, enabling the work to be positioned close to the laser machine table and farther from the laser head. In another version, the work rotating apparatus includes a frame, a supporting shaft mounted rotatably on the frame, and a reduction unit mounted on the supporting shaft so that the axis of rotation of the work can be tilted.