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:
Aug. 05, 2003

Filed:

Mar. 22, 2000
Applicant:
Inventor:

Yoshio Sato, Ayase, JP;

Assignee:

Obara Corporation, Kanagawa, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 7/06 ; H02K 4/100 ; H02K 3/300 ;
U.S. Cl.
CPC ...
H02K 7/06 ; H02K 4/100 ; H02K 3/300 ;
Abstract

There is provided a driving unit of a welding equipment capable of reducing the size of the driving unit, of reducing the moment of inertia, and of being compact and having an excellent operability. The driving unit of a welding equipment provided with a pressure application shaft that is driven by a motor comprises a screw shaft provided integrally with or substantially integrally with a rotary shaft of the motor, a nut provided integrally with or substantially integrally with the pressure application shaft and is screwed with a screw of the screw shaft, and a baffling mechanism provided on the pressure application shaft, and wherein the rotary shaft of the motor is positioned substantially coaxially with the screw shaft and a rotary force outputted from the rotary shaft of the motor is converted into a reciprocating motion of the pressure application shaft.


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