OPTICAL DISC DRIVE

Abstract

The present invention provides a thin optical disc drive whose impact resistance performance is improved.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a view showing a structure of an optical disc drive according to the present invention;

FIG. 2 is a view showing a unit mechanism structure of a typical slim optical disc drive;

FIGS. 3A, 3B are views showing a movement of an optical head when an impact force is applied;

FIG. 4 is a view showing a relation between an impact acceleration and a displacement of the optical head inside the optical disc drive;

FIGS. 5A to 5C are views showing the structures of an under cover and a bottom cover according to an embodiment of the present invention;

FIGS. 6A, 6B are views showing the arrangement of a contact evasion hole and an impact force buffering member that are provided in the under cover and the bottom cover respectively according to an example of the present invention;

FIGS. 7A to 7C are views showing the impact buffering structure provided in an under cover and an optical head according to another embodiment of the present invention; and

FIGS. 8A, 8B are views showing the impact buffering structure provided in a chassis according to another embodiment of the present invention.

Claims

1. An optical disc drive having a casing including a top cover and a bottom cover, characterized in that said bottom cover has a concavity to absorb an impact to an optical head.

2. The optical disc drive according to claim 1, characterized in that the concavity of said bottom cover has a member to absorb the impact to the optical head.

3. An optical disc drive having a casing including a top cover and a bottom cover, characterized in that said bottom cover has a hole to absorb an impact to an optical head.

4. The optical disc drive according to claim 3, characterized in that the hole of said bottom cover has a member to absorb the impact to the optical head.