TORSION DAMPER FOR A FRICTION CLUTCH OF A VEHICLE AND ITS CORRESPONDING ASSEMBLING AND DISASSEMBLY METHOD.

摘要

#CMT# #/CMT# The damper (200) has a cylindrical hub (202) intended to receive a driveshaft, and a main damper (204) and a predamper (206) interdependent of the hub and a veil (208) of the hub. The predamper comprises pawns or legs (210) engaged axially in the veil for transmission of a rotary movement. Grooves are machined on surface of the legs and on surface of the veil located in with respect to the predamper. A snap ring (212) is placed under mechanical constraint in the grooves of the legs and in the grooves of the veil to maintain the predamper to be integral from the veil. #CMT# : #/CMT# Independent claims are also included for the following: (1) a method for disassembling a torsion damper for a friction clutch of a car (2) a method for disassembling a torsion damper for a friction clutch of a car. #CMT#USE : #/CMT# Torsion damper for a friction clutch of a car. #CMT#ADVANTAGE : #/CMT# The snap ring is placed under mechanical constraint in the grooves of the legs and in the grooves of the veil so as to maintain the predamper to be integral from the veil using a supporting unit that is simple and fast to implement, and cooperates to form a reversible mechanical connection with an interface between the predamper and the veil, so that the damper can be arranged in a reduced space while reducing the number of parts necessary to arrange the damper in the clutch, thus simplifying the assembly of the damper and carrying out the assembly using simple tools. The arrangement of the damper avoids the need for placing an axial stop component between two parts having a relative movement in rotation, so that friction risks are removed, and hence improving operation life and reliability of the damper. The damper has sufficient robustness to stop axial displacement of the predamper, and ensures easy disassembling and assembling of the parts of the damper, thus facilitating restoration or recycling of a product, and hence providing operating condition for a worn product so as to resell the worn product. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a cross-sectional view of a torsion damper. 200 : Torsion damper 202 : Cylindrical hub 204 : Main damper 206 : Predamper 208 : Veil 210 : Pawns or legs 212 : Snap ring.