Patent ID: 9377075
Filing Date: 2016-06-28
CPC Classification: F16F,F16J

Claim Text:
1. A sealing assembly insertable between a first and a second mechanical member moving in linear reciprocating manner, insertable between a rod and a guiding bush of a shock absorber, the sealing assembly comprising: a sealing ring made of an elastomeric material and having at least a first and a second elastically deformable annular sealing lips that extend at least in part axially and radially overhanging from the sealing ring, the first lip starting from a first axial end of the sealing ring and the second lip starting from a second axial end of the sealing ring, opposite to the first end; and a reinforcing ring integrally coupled to the sealing ring, radially on the side of the first and second sealing lips; wherein: i) the reinforcing ring is integrally coupled in one piece with the sealing ring, on an exterior of the sealing ring and on the side of a first radial lateral surface of the sealing ring facing the same side as the first and second sealing lips; ii) the reinforcing ring is configured to couple in a sliding manner with the first member in order to guide the relative sliding between the first and the second member; iii) the sealing ring is configured in combination with the reinforcing ring to be coupled by interference with the second member; the first and the second annular sealing lips being adapted to cooperate, with the first member, both in sliding manner, on the opposite sides of the reinforcing ring and one upstream and the other downstream of the reinforcing ring with respect to a relative sliding direction between the first and the second member; iv) the reinforcing ring is integrally fixed in one piece to the sealing ring to define with the sealing ring a single, indivisible, inseparable component; v) the reinforcing ring has an annular projection which radially protrudes on the inside of the sealing ring, by a radial extension which is smaller than the overhanging radially extension of the first and second sealing lips; the annular projection being delimited, on the side of the first and of the second sealing lips, by a radially innermost lateral cylindrical sliding surface slidingly coupled in use with the first member; and vi) the reinforcing ring is delimited by: first and third lateral cylindrical surfaces from which the annular projection radially overhangs, the first lateral cylindrical surface arranged co-linear with the first radial lateral surface of the sealing ring, the third lateral cylindrical surface aligning with a surface of the sealing ring, and the first lateral cylindrical surface being radially offset from the third lateral cylindrical surface; by a second cylindrical lateral surface opposite to the first and third lateral cylindrical surfaces; and by a pair of opposite frontal flat surfaces; the reinforcing ring being entirely embedded in the sealing ring, except for the annular projection and the first and third cylindrical lateral surfaces from which the annular projection protrudes.