Patent ID: 7587935

Claim:
An electronic unit for measuring operating parameters of a vehicle wheel, comprising an electronic box ( 1 ), an inflation valve ( 2 ) of the snap-in type for securing the electronic box ( 1 ) to a wheel rim ( 27 ), comprising a valve body ( 3 ) made of an elastomer material, provided with a longitudinal axial bore ( 4 ) and intended to extend through an orifice ( 28 ) formed in the rim ( 27 ), said valve body being composed of an elastically deformable base ( 5 ) and of a head ( 6 ) which butts against the rim ( 27 ) and is separated from the base ( 5 ) by a neck ( 7 ) adapted to be positioned in a sealed manner in the orifice ( 28 ) formed in said rim, and a hollow tubular core ( 15 ) made of a rigid material, housing a closure mechanism and having dimensions adapted for lodging in the bore ( 4 ) of the valve body ( 3 ) and for extending as a continuation of said valve body on either side thereof, said tubular core consisting of two longitudinal sections ( 18 , 19 ) arranged with respect to one another and relative to the valve body ( 3 ) in such a way as to allow an elastic deformation of the base ( 5 ) whereby the inflation valve ( 2 ) can be mounted through the orifice ( 28 ) in the rim ( 27 ), and means for securing the electronic box ( 1 ) and the inflation valve ( 2 ), said electronic unit being characterized in that the means for securing the electronic box ( 1 ) and the inflation valve ( 2 ) comprise: a bushing ( 20 ) secured to the electronic box ( 1 ) and adapted to be slidably mounted around that portion of the tubular core ( 15 , 19 ) which extends as a continuation of the abutment head ( 6 ) of the valve body ( 3 ) and into a position of the electronic box ( 1 ) where the latter extends as a direct continuation of the inflation valve ( 2 ), and means ( 13 , 14 , 25 , 26 ) for assembling the bushing ( 20 ) of the electronic box ( 1 ) on the abutment head ( 6 ) of the valve body ( 3 ).