Yamauchi Corporation

Hiroshi Ohyama

Toshio Saito

Hiroyuki Maruko

Hiroshi Kuramochi

Ryo Ogawa

A disk device () comprises a case () for supporting the entire disk device (), a base chassis () on which a spindle motor () for rotating the disk is set, a counterweight () for absorbing vibration of the base chassis (), and a plurality of elastic bodies (-) for mutually supporting the case (), the base chassis () and the counterweight (). The case (), the base chassis (), and the counterweight () are supported by the common elastic bodies (-). As a result, there can be provided the dynamic vibration absorber in which the number of parts is not increased and a cost can be reduced, and the optical disk device () using the dynamic vibration absorber.

Method and apparatus for dynamically absorbing vibration

A rubber vibration insulator for use in a vibration insulation device integrated into precision instruments such as acoustic, computer-associated and game instruments, which insulator has a low hardness, a small compression set, a large loss tangent and a small temperature dependence and can be prepared by curing a rubber composition comprising 100 parts by weight of a partially crosslinked butyl rubber and 50 to 200 parts by weight of an extender component as well as a vulcanizing agent.

Growing community of inventors

Fukuchiyama, Japan

Hiroshi Ohyama