SPRING BUMPER WITH PENDILUM SUSPENSION Russian patent published in 2015 - IPC F16F15/04 

FIELD: machine building.

SUBSTANCE: bumper contains coil cylindrical spring interacting with pendulous device. Bottom end of the spring rests against the top flange of the casing. The pendulous device is made as thread rod with nuts at ends and with support washers resting against rubber resilient elements acting as another resilient hinge. The top rubber resilient element is located between the top flange of the spring and support washer. The bottom resilient element is located between the support washer and plate, on which the bumper is secured. Rigidity of the rubber resilient elements of the pendulous device exceeds rigidity of the spring. Additional cylindrical hole damper out of the elastomer encircles with clearance the thread rod of the pendulum suspension. The external cylindrical enclosure of the damper is located with clearance relatively to the inside helical surface of the spring. End surfaces of the damper are made as rings. The top end of the damper rests against the flange of the pendulum suspension, and bottom end rests against the top flange of the bumper casing.

EFFECT: increased efficiency of vibration isolation in resonance mode.

2 cl, 1 dwg