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:
Aug. 14, 2001
Filed:
Jan. 14, 2000
Lothar Lais, Schopfheim, DE;
Walter Schwald, Maulburg, DE;
Magnetic Autocontrol GmbH, Schopfheim, DE;
Abstract
A drive mechanism for a barrier or a stop or gate device includes a drive unit having a drive motor (,) to which at least one single-stage step-down gear, worm gear and/or spur gear with an articulation to a pivoting crank (,) is connected, with the crank being mounted on a primary shaft (,) pivoting preferably around a horizontal axis at bearing points on both sides. The shaft is provided with a fixing device (,) for the barrier beam (,) or gate element which can generally pivot at an angle of approximately 90° in addition to abutments for the compensation springs (,) which act upon their spring crank. The drive mechanism further includes a single-part, single-piece drive casing (G) with open, flat securing flange strips (,) on all sides and a receiving flange (,) to secure the drive motor (,) which can be dismantled and removed. The motor shaft (,) of the drive motor is introduced into a gear case (,) which can be closed by a cover (,) and which contains a set-down gear. An output crank (,) is fastened to the gear output shaft (,) and hingedly connected to the pivoting crank (,) of the drive shaft (,) by means of a swivelling arm (,). The pivoting crank (,) is mounted on both sides on bearing blocks (,) which are formed on the single-piece drive casing (G) and protrudes on one side at least in the area of the bearing point in addition to being provided with a fastening device (,) for the stop or gate member or barrier beam (,).