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:
Oct. 24, 2000
Filed:
Mar. 31, 1999
Minoru Torihata, Musashimurayama, JP;
Shinji Maki, Fussa, JP;
Kabushiki Kaisha Shinkawa, Tokyo, JP;
Abstract
A guide rail mechanism used for, for instance, a die boding apparatus and a wire bonding apparatus, including a pair of guide rail sections that face each other and convey a workpiece such as a lead frame in between. The guide rail sections include rail height adjustment spacers held by spring force between guide rails and guide rail stands, and this rail height adjustment spacer is replaced for other rail height adjustment spacers of different thicknesses by moving guide rail raising-and-lowering shafts by way of overcoming the spring forces of the springs provided thereon, thus assuring the same upper surface height level of workpieces of different thicknesses to be conveyed.