Hitachi-lg Data Storage, Inc.

Hitachi Consumer Electronics Co., Ltd.

Hideyuki Nagamine

Seiji Hamaie

Koji Matsumoto

Yoshiaki Yamauchi

Ikuo Nishida

Tatsuya Yamasaki

An example of an optical disc apparatus includes a top case and a bottom case. The top case includes a tab extending downward from one end of the top case. The tab includes a protrusion protruding inward. The bottom case includes a lower-side folded portion formed by folding inward an upper end of one side surface of the bottom case. The lower-side folded portion includes a cantilever spring. The cantilever spring includes a spring portion extending in a vertical direction and a curved portion formed by folding inward an upper part of the spring portion. The protrusion comes into contact with the curved portion when the top case is being affixed to the bottom case and is in contact with the spring portion under a state where the top case is affixed to the bottom case.

Optical disc apparatus

An optical disk apparatus includes a tray mounting an optical disk and a casing which stores the tray so that the tray may be inserted into and ejected from the casing. The tray has a guide rail on at least one of parallel sides relative to the direction of tray insertion or ejection and for guiding the movement of tray in the direction of tray insertion or ejection. The casing has rail guides formed on a side section of the casing in opposition with the guide rails when the tray is inserted and for guiding the guide rail, and a spring member formed on a frontend of the rail guides in the direction of tray insertion or ejection to provide elastic deformation when a force toward the tray insertion direction is applied to the spring member.

Optical disk apparatus

A disc drive for suppressing warpage deformation of a disc tray generated as initial deformation during molding is provided. A supporting structure of a disc trayprovided to be inserted into and ejected from a drive housing' through a tray insertion/ejection openingis provided with guide mechanismsandwhich slidably support a tray bodyin the depth direction as viewed from the tray insertion/ejection openingin an interior space of the drive housing&#x2032;, and a protrusionwhich is slidably contacted to an upper end of the guide mechanismon a lower surface of a wing partprotruding from the tray bodyon the side where a disc protrudes in the width direction.

Optical disc drive

From an optical disc drive, internal static electricity has to be discharged to the outside to prevent breakage of electric components such as laser diodes. A grounding spring has been used to discharge static electricity from a unit mechanism to the enclosure of the optical disc drive but it is necessary to improve the reliability of the drive in consideration of the dimensional accuracy and workability of the spring. Thus the free end of a grounding spring having a cantilever structure is shaped like an arc and an end of the grounding spring has a curved structure. This configuration improves the dimensional accuracy and workability of the spring, so that the performance of the optical disc drive can be more reliable.

Growing community of inventors

Urayasu, Japan

Hideyuki Nagamine