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. 06, 1993
Filed:
May. 09, 1991
Jean-Luc Leman, Aix-en-Provence, FR;
Aerospatiale Societe Nationale Industrielle, Paris, FR;
Abstract
The control device is of the type including two annular disks (3,6), a rotating and non-rotating disk, assembled by at least one ball bearing (20) and mounted concentrically about the rotor shaft (1). The non-rotating disk (3) is mounted so as to oscillate with respect to the shaft (1) via a mechanism consisting of swivel/laminated articulations (2, 10). The mechanism for tilting, for axial displacement and for retention in rotation of the non-rotating disk includes two swivel joints (2) which are diametrically opposite on either side of the axis of rotation of the shaft (1) and are centered on the longitudinal tilting axis (A--A) of the non-rotating disk (3). Each swivel joint is retained between a disk support (5), which is mounted so as to slide parallel to the axis of the shaft (1) along a disk guide (4) which is itself coaxial with the shaft (1) and fixed about the latter, and an element (9) for fixing to the non-rotating disk (3). Tilting of this disk ( 3) about the lateral tilting axis (B--B) is permitted by two deformable linking assemblies with laminated blocks (10). Each linking assembly is arranged between the disk support (5) and a swivel joint (2).