To provide an antivibration device capable of securing an excellent anti-come-off force of an elastic bushing from a sleeve wherein the sleeve and an outer cylinder do not require high precision processing respectively and risk of damaging the outer cylinder is effectively removed.
In the antivibration device, the elastic bushing 1 provided with the outer cylinder 3 and a cylindrical elastic body 4 connected with an inner circumferential surface of the outer cylinder 3 is pressed into the sleeve 2 mounted for an arm member while the outer cylinder 3 is deformed to be radially contracted and an outer circumferential surface of the outer cylinder 3 is frictionally engaged with an inner circumferential surface of the sleeve 2. The outer cylinder 3 is structured by a material which is softer than the sleeve 2. An opening part 6 arranged through a thickness direction is provided at least a part of the sleeve 2. An outer circumferential surface part at least positioned corresponding to the opening part of the outer cylinder inserted into the sleeve is formed as a smooth circular surface.
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SOMEYA KATSUMI
SATO TOSHIHARU
Kiyoshi Kuruma
Tatsuya Sawada
Kazuyuki Tomita