JPH0449357U

JPH0449357U -

Info

Publication number: JPH0449357U
Application number: JP9195990U
Authority: JP
Priority date: 1990-08-31
Filing date: 1990-08-31
Publication date: 1992-04-27

Description

[Brief explanation of the drawing]

第１図ないし第４図は本考案の一実施例を示す
ものである。第１図はデイスク再生装置の概略の
横断面図である。第２図はトレイの移動状態を示
すデイスク再生装置の概略の縦断面図である。第
３図はデイスク再生装置の概略の縦断面図である
。第４図は発光素子と受光素子との発光、受光関
係を示す概略の縦断面図である。１は装置本体、２はトレイ（デイスク配設部材
）、３ａ，３ｂ，３ｃ，３ｄはデイスクホルダ（
デイスク配設部）、４ａ，４ｂ，４ｃ，４ｄはデ
イスク識別孔、５はデイスクセンサ（デイスク検
出手段）、５ａは発光素子、５ｂは受光素子であ
る。 1 to 4 show an embodiment of the present invention. FIG. 1 is a schematic cross-sectional view of a disc playback device. FIG. 2 is a schematic longitudinal sectional view of the disc playback device showing the state of movement of the tray. FIG. 3 is a schematic vertical sectional view of the disc playback device. FIG. 4 is a schematic longitudinal cross-sectional view showing the relationship between light emitting and light receiving elements between a light emitting element and a light receiving element. 1 is the main body of the device, 2 is a tray (disk arrangement member), and 3a, 3b, 3c, 3d are disk holders (
4a, 4b, 4c, and 4d are disk identification holes, 5 is a disk sensor (disk detection means), 5a is a light emitting element, and 5b is a light receiving element.

Claims

[Claims for Utility Model Registration] A disk placement member having a diameter corresponding to a plurality of types of disks with different diameters is provided with a disk placement member formed approximately concentrically, and this disk placement member is connected to the main body of the device. In a disk playback device that is moved from an external disk attachment/detachment position to a playback position inside the device main body, whether or not there is a disk on the movement path of the disk placement portion with the smallest diameter when the disk placement member is moved is determined. is provided with a disk detection means having a detection area set therein, and is based on the output from the disk detection means when each disk placement part sequentially passes through the detection area during the movement of the disk placement member. 1. A disc playback device, characterized in that the disc playback device is provided with identification means for identifying the presence or absence and type of a disc.