Alpine Electronics, Inc.

Toshiba Alpine Automotive Technology Corporation

Hiroshi Kawase

Yusuke Yoshida

Tsutomu Tatekawa

Tokio Suzuki

Ichiro Kato

Nobunori Kudou

Yousuke Kuno

In a disk device, as a switching slider which is disposed on a drive base moves in a first direction, a roller bracket moves in a second direction and a transport roller moves toward a facing member. Then, a roller bracket serves as a restriction member and the drive base is restricted in a housing. Before the drive base is restricted, a regulation member which is provided on the switching slider abuts a regulation projection of the housing so as to regulate inadvertent upward movement of the drive base. Accordingly, a disk during an unloading operation can be guided to an insertion/ejection port in a reliable manner.

Drive base regulation member for disk device

When a normal disk having the diameter of 12 cm is inserted into the disk device, first and second optical detecting elements detect the insertion, and transitions to a first detection state, which initiates transfer operation of first and second transfer rollers. If the disk is further moved to an inner portion of the device, thus pressing first and second detecting pins, first and second detecting switches are turned OFF, and the detecting elements enter a second detection state. Before the transition from the first detection state to the second detection state occurs, a rotating speed of the first and second transfer rollers is set low. After transition to the second detection state, the rotating speed is increased. As a result, a card or other such foreign objects can be removed and a monitoring period can be increased until detection of a normal disk is detected.

Disc device having multiple disk carry-in speeds

Growing community of inventors

Iwaki, Japan

Hiroshi Kawase