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. 09, 2013
Filed:
Jul. 08, 2010
Walter Wohlrab, Weissenburg, DE;
Walter Wohlrab, Weissenburg, DE;
KraussMaffei Technologies GmbH, München, DE;
Abstract
The present invention relates to a clamping unit for an injection molding machine, comprising a displaceable clamping plate (), a support plate () and a drive device acting between the displaceable clamping plate () and the support plate (), which has at least one electric motor () and at least one connecting rod (--), wherein the electric motor () directly or indirectly acts on the connecting rod or connecting rods (--) for opening, closing and/or applying the clamping force. According to the invention, it is proposed to provide in addition to the electric motor () at least one separate hydraulic drive (″), which is joined by a hinge separately to a connecting rod and acts in parallel to and independently of the electric motor at least at times for opening, closing and/or applying the clamping force.