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:
Dec. 25, 2001
Filed:
Sep. 18, 1998
Koichi Futsuhara, Urawa, JP;
Masayoshi Sakai, Urawa, JP;
Iwashige Takahashi, Komatsu, JP;
Yukio Hata, Komatsu, JP;
The Nippon Signal Co., Ltd., Tokyo, JP;
Abstract
The present invention provides an operation apparatus for a press, of simple structure with lower cost. The operation apparatus for a press according to the present invention comprises a controlling system,for generating a slide actuation command signal K,by an ON operation of an operation button or an entrance/escape detection output of a human body by a light-beam type safety apparatus and controlling slide actuation, based on a crank angle signal from an encoder,; a monitoring system,for monitoring controlling operation of the controlling system,, including slide overrun monitoring function and the like, utilizing operation button ON signal T, operation button-OFF signal /T or the detection output from the light-beam type safety apparatus, position signals P,and P,indicative of slide elevating process and slide lowering process, respectively, position signal P,from a light-beam type safety apparatus, and slide actuation command OFF signal /K,; and an AND gate,for generating a slide actuation signal S based on the slide actuation command signal K,from the controlling system,, only when the normality judgment signals K,, K,are being generated from the monitoring system