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:
Jan. 24, 2012
Filed:
May. 12, 2005
Luca D'amicantonio, Pescara, IT;
Heinz Lemberger, Unterföhring, DE;
Luca D'Amicantonio, Pescara, IT;
Heinz Lemberger, Unterföhring, DE;
Dayco Europe S.R.L. Con Unico Socio, Chieti, IT;
Bayerische Motoren Werke Aktiengesellschaft, Munchen, DE;
Abstract
A tensioner () for a vehicle belt drive, having a housing () defining a cavity () having an axis (A); at least one arm () fitted to the housing () to rotate about the axis (A); an idle pulley () fitted to the arm (); a torsion bar elastic member () housed at least partly in the cavity () and having a first end portion () integral with the arm (), and a second hand portion () connected rigidly to a retaining portion () to permit tensioning of the elastic member (); and a damping device () for damping oscillation of the arm (), and having a conical friction member () cooperating axially with a mating surface () and loaded by axial elastic means (). The friction member () is interposed between the arm () and the housing (); and the elastic member () produces an axial thrust component depending on torsion of the elastic member and for pressing the friction member () and the mating surface.