PLASTIC SHOCK-ABSORBER Russian patent published in 2013 - IPC F16F7/12 

FIELD: machine building.

SUBSTANCE: shock-absorber is mounted on external casing that contains supporting bases and shroud fixed on them. On each support base there fixed is not less than two rods. The rods have reduced diameters of supporting surfaces. Parallel bases of shock-absorber and matrix have through-holes coaxial to the rods. Between supporting bases of the casing and matrix there installed are internal compression springs. Between the casing supporting bases there installed is a compression spring of large hardness. At the casing bases there are tension restrainers. There is a shaft with slot along the longitudinal axis of shock-absorber. One end of the shaft is located in the plug fixed on one of the shock-absorber bases. The second end of the shaft goes into the hole of the other shock-absorber's base. At the end of the shaft there is a spring-loaded stem that goes into the fixing grooves located on the base of the shock-absorber. Between the shaft and shock-absorber's base there is a spring with hardness less than spring-loaded stem mounted on ball pivot. One ball pivot is fixed on the shaft, and the other - on shock-absorber's base. In axial hole of the matrix there is a coil that has not less than two leaves on each end. On the coil there fixed is a stem interacting with shaft surface slot.

EFFECT: multiple use of shock-absorber without reinstallation after each working stroke.

7 cl, 16 dwg