JPH08102077A - Optical pickup protector - Google Patents

Abstract

PURPOSE: To protect an optical pickup against contact of finger, etc., and to prevent the adhesion of dust and dirt on this optical pickup by providing the optical pickup with a protective shutter which operates cooperatively with a cap at the time of attaching and detaching a disk by opening the cap. CONSTITUTION: A resin sheet member 6 having elasticity to the cap 1 opened and closed around a shaft 5 as a fulcrum at the front surface part of a reproducing device 3 is detained to this device 3 in the form of fixing one end to a shaft 7 apart a prescribed distance from the shaft 5 and pulling the other end by means of a spring 8. This member 6 is provided with an aperture 9 in such a manner that the cap 1 faces the optical pickup 4 in a closed state and that the optical pickup 4 faces the optical disk 2 in a range where the optical pickup is actuated by track control. The member 6 is held by guide shafts 12a to d and is moved in an arrow AB direction in response with opening and closing of the cap 1. The member 6 is pulled in the direction A by the spring 8 and the aperture 9 of the member 6 is moved to a position deviating from the optical pickup 4 when the cap 1 is disengaged by pushing a detaining part 13. The optical pickup is thus protected by the member 6. The pickup 4 is protected under the member 6 and is not contactable from a hole 14 at the time of attaching and detaching the disk 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical disk reproducing apparatus provided with a lid for opening and closing an optical disk to be attached or detached.

[0002]

2. Description of the Related Art In a conventional optical disk reproducing apparatus, as shown in FIG. 6, an optical disk is loaded and unloaded by opening a lid 1 and holding an optical disk 2 by hand. At this time, when the lid 1 without the optical disc 2 is opened, the optical pickup 4 provided in the reproducing apparatus 3 faces the optical disc 2 and operates in a hole 14
The optical pickup 4 is exposed from the above.

[0003]

When the optical disc is loaded or unloaded, the optical disc is held by hand and the objective lens of the optical pickup may be touched by hand. As a result, dust or the like adheres to the lens surface of the optical pickup and sticks to it, and there is a problem in that the laser irradiation is insufficient for recording and reproducing operations, which causes a problem. Further, if the device is left with the lid open, there is a problem that dust and dirt are accumulated and adhered to the optical pickup. In addition, the optical disk reproducing apparatus for infants or the optical disk reproducing apparatus that an infant easily touches has a problem that the infant touches the optical pickup and attaches dirt to the optical pickup.

[0004]

SUMMARY OF THE INVENTION The present invention relates to an optical disc recording / reproducing apparatus, an optical pickup, a reproducing unit for mounting the disc for reproducing information recorded on the disc by the optical pickup, and a lid for the reproducing unit. An optical pickup protection device is provided with a lid for protecting the optical pickup from being touched by a finger or the like in conjunction with the lid when the lid is opened and the disc is put in and taken out.

In the optical disk recording / reproducing apparatus,
An optical pickup, a reproducing unit for mounting the disc to reproduce information recorded on the disc by the optical pickup, a lid for opening and closing the reproducing unit, and a lid having an opening facing the optical pickup. When the lid is opened, the sheet member protects the optical pickup from contact with a finger or the like when the lid is opened, and when the lid is closed, the information of the disc is reproduced from the opening by the optical pickup. It is an optical pickup protection device configured as described above.

In the optical disc recording / reproducing apparatus,
An optical pickup, a reproducing unit for mounting the disc to reproduce information recorded on the disc by the optical pickup, a lid for opening and closing the reproducing unit, and a lid having an opening facing the optical pickup. An elastic sheet member whose one end is connected to the sheet member and a spring at the other end of the sheet member are provided to assist the opening and closing operation of the lid with the spring, and when the lid member is closed by applying tension to the sheet member, the aperture is an optical pickup Is an optical pickup protection device configured to be located in the operating position.

In the optical disc recording / reproducing apparatus,
An optical pickup, a reproducing unit for mounting the disc to reproduce information recorded on the disc by the optical pickup, a lid for opening and closing the reproducing unit, and a lid facing the optical pickup and having one end connected to the lid. A sheet member having elasticity,
An optical pickup protection device is provided with a guide member for guiding the sheet member to the surface of the optical pickup, and the sheet member protects the optical pickup from contact with a finger or the like when the lid is opened.

Further, the pickup protection device uses a transparent flexible sheet as a sheet member. Further, the pickup protection device uses a flexible glass material as the sheet member.

[0009]

EXAMPLES The present invention will be described by way of examples. FIG. 1 is a perspective view showing an embodiment of the present invention. An elastic resin sheet member 6 is fixed to a shaft 7 having a distance d with respect to the shaft 5 at one end and a spring 8 at the other end on a lid 1 which opens and closes around the shaft 5 as a fulcrum on the upper surface of the reproducing device 3. The playback device 3 is locked in the pulled state.

The sheet member 6 is provided with an opening 9 so as to face the optical pickup 4 when the lid 1 is closed and to face the optical disc 2 within a range where the optical pickup 4 is track-controlled and operated. FIG. 2 shows a sectional view of the optical pickup protection device of the present invention with the lid closed, and FIG. 3 shows a sectional view of the optical pickup protection device with the lid open.

4 and 5 show another embodiment of the present invention. The sheet member 6 is made of, for example, a Mylar sheet having elasticity, a flexible substrate material of synthetic resin, high-quality paper, or the like. The sheet member 6 is wound around a shaft 7 and is joined together at a portion 6a in a form of axial engagement, and holes 6b and 6c are provided at the other end of the sheet member 6 and locking holes 1 provided in the body of the reproducing apparatus 3 by coil springs 8a and 8b.
It is locked at 0, and tension is constantly applied by the spring 8, and the lid 1
When the lid is closed, the lid 1 is locked by the locking portion 13.

When the cover 1 is closed, the sheet member 6 extends from the optical pick-up 4 to the hole 1 in an operating range in which the optical pickup 4 moves in a track at a position facing the optical pickup 4.
An aperture 9 is provided so that the laser beam is irradiated onto the optical disc 2 through the aperture 4. If the aperture 9 is a transparent member that can be irradiated with laser from the optical pickup 4, it is not necessary to provide a hole in the aperture.

The sheet member 6 responds to the opening and closing of the lid 1, and the shaft 5
Since it has a distance d between the shaft 7 and the shaft 7, it is held by the guide shafts 12a to 12d and transferred in the direction of arrow AB.

When the locking portion 13 is pushed and the lid 1 is unlocked, the spring 8 pulls the sheet member 6 in the direction of arrow A, and the lid 1 pivots around the shaft 5 to open. The hole 9 moves to a position displaced from the top of the optical pickup 4, and the optical pickup 4 is protected by the sheet member 6. When the disc 2 is loaded into or unloaded from the reproducing device 3, the optical pickup 4 is protected below the sheet member 6. It is made inaccessible from 14.

In another embodiment of the present invention shown in FIGS. 4 and 5, the elastic sheet member is the guide shaft 12a.
It is configured to protect the optical pickup 4 by going in and out through ~ d. Since the sheet member is made of a flexible plate having elasticity, the optical pickup 4 can be protected by a simple guide shaft structure.

[0016]

According to the present invention, the sheet member interlocking with the opening / closing lid protects the optical pickup from contact with fingers and the like, and prevents dust and dirt from adhering to the optical pickup when the lid is opened. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a sectional view showing one embodiment of the present invention.

FIG. 4 is a sectional view showing another embodiment of the present invention.

FIG. 5 is a sectional view showing another embodiment of the present invention.

FIG. 6 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 lid 2 optical disk 3 reproducing device 4 optical pickup 5, 7 axis 6 sheet member 8, spring 9 opening hole 10 locking hole 11 ribs 12a to d guide shaft 13 locking portion 14 hole

Claims (5)

[Claims] 1. An optical disc recording / reproducing apparatus, an optical pickup, a reproducing unit for mounting the disc for reproducing information recorded on the disc by the optical pickup, a lid for covering the reproducing unit, An optical pickup protection device comprising a shutter which works in conjunction with the lid to protect the optical pickup from contact with a finger or the like when the lid is opened and the disc is put in and taken out. 2. An optical disc recording / reproducing apparatus, wherein an optical pickup, a reproducing unit for mounting the disc to reproduce information recorded on the disc by the optical pickup, and a lid for opening / closing the reproducing unit. And an elastic sheet member facing the optical pickup and having an opening and one end of which is connected to the lid, and when the lid is opened, the sheet member protects the optical pickup from contact with a finger or the like. An optical pickup protection device, characterized in that when the lid is closed, the information of the disc is reproduced from the opening portion by the optical pickup. 3. In an optical disk recording / reproducing apparatus, an optical pickup, a reproducing section on which the disk is mounted for reproducing information recorded on the disk by the optical pickup, and a lid which opens and closes the reproducing section. And an elastic sheet member facing the optical pickup and having an opening and one end of which is connected to the lid, and a spring at the other end of the sheet member to assist the opening / closing operation of the lid by the spring. At the same time, when the tension is applied to the sheet member and the lid is closed, the opening portion is located at an operating position of the optical pickup. 4. An optical disc recording / reproducing apparatus, wherein an optical pickup, a reproducing section on which the disc is mounted for reproducing information recorded on the disc by the optical pickup, and a lid which opens and closes the reproducing section. And an elastic sheet member facing the optical pickup, one end of which is connected to the lid, and a guide member for guiding the sheet member to the surface of the optical pickup, and the sheet member when the lid is opened. An optical pickup protection device, which protects the optical pickup from contact with a finger or the like. 5. The pickup protection device according to claim 1, 2 or 4, wherein the sheet member is a transparent flexible sheet.