Patent ID: 7636926
Filing Date: 2009-12-22
Classification: G11B

Abstract:
1. A shock isolation structure, comprising: a bottom portion and a top portion; and a neck portion for jointing the bottom portion and the top portion, wherein the bottom portion, the neck portion and the top portion have a through hole running through the top surface of the top portion and the bottom surface of the bottom portion along a run-through central line, and in the neck portion, any ring-shaped cross section using the run-through central line as the normal has a first wall thickness on a first extension line starting from a run-through central line and extending towards the outer curved peripheral of the ring-shaped cross section and has a second wall thickness on a second extension line starting from the run-through central line and extending towards the outer curved peripheral of the ring-shaped cross section, the first wall thickness and the second wall thickness are two different distances between the outer curved peripheral and the inner curved peripheral of the ring-shaped cross section, and the first wall thickness is larger than the second wall thickness.