Spring damper and acceleration device using the same

• Main Authors: INUZUKA YOSHINORI, HORIE KAZUYUKI
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2012
• Subjects: ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES; ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; BLASTING; CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BYMECHANICAL FEATURES ONLY; CONTROLLING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICS; REGULATING; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

A spring damper (20) for absorbing vibration of a double coil spring (4) is made of elastic material and composed of a cylindrical body (21), outer-wall convex portions (22), and inner-wall convex portions (23). The spring damper (20) is arranged in an annular space formed between an outer coil spring (41) and an inner coil spring (45) of the double coil spring (4), so that the outer-wall convex portions (22) push the outer coil spring (41) in a radial outward direction and the inner-wall convex portions (23) push the inner coil spring (45) in a radial inward direction. Longitudinal ends of the cylindrical body (21) are prevented from being hooked by spring wires of the outer or inner coil spring (41,45), when the double coil spring (4) is expanded and compressed.