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:
Apr. 21, 1998
Filed:
Sep. 05, 1996
Hiroyuki Eto, Tokyo, JP;
Matsushita Industrial Co., Ltd., Osaka, JP;
Abstract
A pocket coil spring producing apparatus includes a coil spring forming mechanism for forming coil springs, a hardening mechanism for hardening coil springs fed from the coil spring forming mechanism, a conveyor mechanism for cooling and conveying the hardened coil springs, and a compress inserting mechanism for compressing and inserting the coil springs conveyed by the conveyor mechanism into a two-fold sheet form of a sheet material. A sheet supplying mechanism folds the sheet material in two and feeds the same. A joining mechanism joins the two-fold form of the sheet material to have a row of substantially rectangular pouches into which are supplied respective of the compressed coil springs. A spring alignment mechanism aligns each compressed coil spring in a respective pouch in a lengthwise direction to return to a free, released state. A control mechanism controls the foregoing mechanisms.