Tray drive

A driving device and tray technology, which is applied in recording information storage, instruments, etc., can solve the problems of increased component cost and complex structure, and achieve the effect of reducing impact and avoiding rapid changes.

A driving device and tray technology, which is applied in recording information storage, instruments, etc., can solve the problems of increased component cost and complex structure, and achieve the effect of reducing impact and avoiding rapid changes.

CN1707655AInactive Publication Date: 2005-12-14FUNAI ELECTRIC CO LTD
5 Cites 3 Cited by

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Tray drive
  • Tray drive
  • Tray drive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Embodiments of the present invention are described below with reference to the drawings.

[0033] Figure 5 Shows the appearance of an optical disc device equipped with an embodiment of the tray driving device according to the present invention.

[0034] The optical disc device 100 is a device that loads an optical disc such as a DVD placed on a tray 2, in which the loaded optical disc is irradiated with a laser beam to record or reproduce a signal. When the tray 2 on which the disc is placed is moved back and forth between the retracted position and the ejected position (arrow A shows the direction of movement) by the tray driving mechanism, loading or ejecting of the disc is performed. The movement of the tray 2 to the retracted position is detected by a tray position detection unit (described later in detail), but the unit for detecting the movement of the tray 2 to the retracted position is omitted.

[0035] Figure 6 Indicates that the tray drive mechanism is in...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The device disclosed in the present invention includes a tray drive mechanism that uses a drive motor as a power source to move the tray back and forth; After a predetermined duration elapses from the moment when the tray is considered to have moved to the exit position, the motor drive unit gradually reduces the voltage applied to the drive motor, so that the voltage drops from the first drive voltage to 0V.

Description

technical field [0001] The present invention relates to a tray driving device for reciprocatingly moving a tray on which an optical disc is placed between an ejected position and a retracted position, and more particularly, to a device that eliminates the need for a switch for detecting that the tray has moved to the ejected position tray drive. Background technique [0002] A digital video disc (DVD) player is provided with a tray for placing a DVD thereon. To replace the DVD, the drive motor moves the tray toward the ejected position until the limit switch detects that the tray has moved to the ejected position. Also, to play a DVD placed on the tray, the drive motor moves the tray toward the retracted position until the limit switch detects that the tray has moved to the retracted position (see, for example, JP-A-2000-285561 and JP-A- 2001-243687). Furthermore, a switch for detecting the moving direction of the tray is provided, and the movement of the tray is controll...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
14 Dec 2005
Publication
CN1707655A
IPC
G11B17/056; G11B17/04
CPC
G11B17/056
Inventors
坂上胜哉