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:
Nov. 07, 1989
Filed:
Oct. 06, 1988
Jean-Claude Van Dest, Saintry sur Seine, FR;
Glaenzer-Spicer, Poissy, FR;
Abstract
The joint comprises a tulip element (1) connected to a driving shaft and having three axially extending petal portions (8), a tripod element (3) having three radial arms (4) carrying spherical sectors (18) cooperative with inner spherical bearing surfaces (21) of rollers (6) associated with rolling tracks (7) on the tulip element (1). The tripod element is fixed to a bowl element (9) which is connected to a wheel stub-axle (11). Each arm (4) of the tripod element (3) comprises a portion (15) which is off-center in a radial plane relative to a central ball (5). Two flat surfaces (19) are provided between the spherical sectors (18) and an arrangement for axially connecting the tulip element (1) to the tripod element (3) comprises a central spider element (24) having three branches (25) adapted to cap in a radially floating manner the ball (5) of the tripod element. The branches are provided with an arrangement ( 27) for axially retaining the branches in the tulip element (1), the spider element (24) consequently having two degrees of freedom, namely radially relative to the tulip element and in rotation with the tulip element (1) about the general axis (X--X) of the joint.