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. 04, 2017
Filed:
Jun. 25, 2013
Walter Maschinenbau Gmbh, Tuebingen, DE;
Daniel Schindler, Filderstadt, DE;
Simon Kümmerle, Ammerbuch, DE;
Walter Maschinenbau GmbH, Tuebingen, DE;
Abstract
A lifting apparatus includes a lifting part that can be moved in linear direction between a rest position and a working position. At least one drive device is disposed for moving the lifting part. Each drive device includes a toggle lever mechanism, having a first toggle supported pivotally on the lifting part and a second toggle supported on a base part. A positioning device prespecifies the position of the lifting part in lifting direction and in a direction transverse to lifting direction in working position. To do so, said toggle preferably has a stop surface against which the lifting part is pushed into working position by the at least one drive device. In this working position, the toggle joint angle α of the toggle lever mechanism is smaller than 180° so that the two toggles and are outside the extended position.