Vibration damping unit

Abstract

A vibration damping unit includes a rack-mounted support body removably mounted on a rack. A mass is supported on the support body for movement along an imaginary plane. An elastic member is coupled to the support body and the mass. The support body is removable from the rack. The vibration damping unit can be mounted on an existing rack in a facilitated manner without any change in the design of the rack. Workers can be released from troublesome works, such as moving the rack, even when the vibration damping unit is applied to the rack. The means for preventing sway or vibration can be applied to the rack even when an electronic apparatus, including a disk array apparatus and the like, is in operation inside the rack.

1 . A vibration damping unit comprising: 
 a rack-mounted support body removably mounted on a rack;    a mass supported on the support body for movement along an imaginary plane; and    an elastic member coupled to the support body and the mass.    
   
   
       2 . The vibration damping unit according to  claim 1 , wherein the mass comprises: 
 a tray coupled to the support body for movement along the imaginary plane; and    at least one weight member removably mounted on the tray.