Samsung Electro-mechanics Co., Ltd.

Kyung Seob Shin

Sang Kyu Lee

Nam Seok Kim

Dong Yeon Shin

Pyo Jae Kim

Young Sun Yoo

Dong Woo Rhee

Disclosed is a stator core including a core back fixedly inserted onto an outer surface of a stationary member, a plurality of teeth protruding from the core back in an outer diameter direction, wherein a coil is wound around the plurality of teeth so as to allow magnetic flux from a magnet to flow to the teeth, front end portions defining outer edges of the teeth, respectively, and body portions defining a length of the teeth and having a width increasing from the core back toward the front end portions, respectively.

Stator core and motor device including the same

There is provided an optical disc driving device including: a sleeve holder fixed to a base member; a sleeve fixed to the sleeve holder; a shaft rotating while being inserted into the sleeve; a rotor hub fixed to the shaft and rotating together with the shaft; a chucking mechanism fixed to the rotor hub and having a disc mounted thereon; and an upper case forming an internal space, together with the base member, wherein the shaft is protruded upwardly from the chucking mechanism.

Optical disc driving device having shaft upwardly protruding from chucking mechanism

Disclosed herein is a disk clamping device capable of preventing the slipping or eccentricity of an optical disk when it rotates at high speeds. The disk clamping device includes a turntable having a hub which is integrally provided in a central portion thereof and inserted into a central hole of an optical disk. A guide unit is accommodated in the turntable in such a way as to move linearly, and at least portion of the guide unit protrudes outwards from the hub and is supportedby the optical disk. The guide unit is moved linearly by mounting force of the optical disk. A spring is provided in the turntable to elastically bias the guide unit in a direction opposite to a direction of insertion of the optical disk. A chucking plate presses the upper surface of the optical disk, thus securing the optical disk to the turntable.

Clamping device for disk

Disclosed herein is a turntable assembly. The turntable assembly includes a turntable for mounting the optical disk thereon, and a chucking member which is contracted toward a center of an optical disk and holds the optical disk. A spring elastically biases the chucking member in a direction away from the center of the optical disk. An elastic support member supports the chucking member in a direction opposite an inserting direction, so that at least part of the elastic support member supporting the chucking member is elastically deformed in the inserting direction of the optical disk. A housing accommodates the chucking member, the spring, and the elastic support member therein. The elastic support member includes a support part which is spaced apart from the turntable to undergo elastic deformation in the inserting direction, and supports the chucking member.

Growing community of inventors

Gyunggi-do, South Korea

Kyung Seob Shin