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:
Jan. 04, 1994
Filed:
Feb. 28, 1992
Masaki Kawada, Sayama, JP;
Keizaburo Ohtaki, Sayama, JP;
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
In a DC type C-shaped welding gun apparatus having a transformer mounted thereon, a center tap of the transformer is communicated to a movable gun arm via an ounce metal plate. A rear end portion of a stationary gun arm is pressingly held between a pair of terminal plates via rectifiers. Both terminal plates are disposed such that their center line is offset to one widthwise side of the transformer. The stationary gun arm is thus disposed to one widthwise side of a projected area of the transformer. The ounce metal plate for supplying electric power to the movable gun arm is disposed to the other side of the projected area. In an X-shaped welding gun apparatus, a first gun arm is rotatably supported by a supporting shaft provided on a gun bracket. A second gun arm is directly connected to one of feeder terminals of a transformer to constitute the second gun arm and the transformer into a unit. This unit is rotatably supported by the supporting shaft via a supporting arm, and the other of the feeder terminals is connected to the first gun arm via the supporting arm. The supporting arm is used as a feeder member. The feeder member can thus be disposed within the width of the gun bracket. A pressurizing cylinder is supported on the supporting arm along the transformer. The vacant space around the transformer is utilized as a space for disposing the cylinder to thereby minimize the size of the welding gun.