초록 ▼

An annular element is disposed within an outer tubular member of an insulator device in a manner to surround a recessed elastomeric body interposed between the outer tubular member and an inner tubular member. A channel formed in the outer periphery of the annular element is closed by the outer tubu

An annular element is disposed within an outer tubular member of an insulator device in a manner to surround a recessed elastomeric body interposed between the outer tubular member and an inner tubular member. A channel formed in the outer periphery of the annular element is closed by the outer tubular member to define a passage which fluidly intercommunicates chambers defined by the recesses formed in the elastomeric body. The channel is sufficiently long and robust as to ensure the desired vibration damping and working life of the unit.

대표청구항 ▼

A vibration insulator comprising: a rigid inner tubular member having an outer circumference; a rigid outer tubular member having an inner circumference; an elastomeric body disposed between, and secured to, the outer circumference of said inner tubular member and the inner circumference of said out

A vibration insulator comprising: a rigid inner tubular member having an outer circumference; a rigid outer tubular member having an inner circumference; an elastomeric body disposed between, and secured to, the outer circumference of said inner tubular member and the inner circumference of said outer tubular member, said elastomeric body being formed with recesses therein; means including said recesses defining at least first and second closed fluid chambers which hold a working fluid; and fluid passage defining means providing a curved channel having rigid walls and extending circumferentially about the full inner circumference of said outer tubular member to connect said chambers and provide fluid communication therebetween, whereby vibrations producing relative motion between said inner and outer tubular members distorts said elastomeric body and causes working fluid to flow between said fluid chambers through said channel, which has an effective length to dampen the vibrating flow of working fluid through said channel.