KR100207675B1 - Optical disc player - Google Patents

Abstract

According to the invention, the deck; A tray holding the disk on the top; Tray drive means; A turntable for holding a disk on an upper surface thereof; Tentable driving means; Optical pickup; Drive means for optical pickup transfer; An optical recording and reproducing apparatus comprising: a clamp lever member rotatably provided on the tray to hold the clamp means. A playback device is provided. In the optical recording and reproducing apparatus according to the present invention, the disc is not detached from the tray even in the unloading position regardless of the direction of the apparatus.

Description

Optical recording and playback device

1A is a plan view of a conventional optical recording and reproducing apparatus.

FIG. 1B is a right side view of FIG. 1A. FIG.

2 is a cross-sectional view taken along the line AA ′ of FIG. 1a.

3 is a plan view of the optical recording and reproducing apparatus of the present invention.

4 is a cross-sectional view taken along the line BB ′ of FIG. 3.

* Explanation of symbols for main parts of the drawings

11: deck 13: tray

14 catcher bracket 15 disc clamp

18: optical pickup 19: spindle motor

31: Deck 33, 33 ': Tray

34: clamp lever 35: disk clamp

39: spindle motor 40: turntable

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical recording and reproducing apparatus, and more particularly, to an optical recording and reproducing apparatus provided with a clamp lever provided in a tray so as to prevent detachment of the optical disk.

An optical recording and reproducing apparatus is a reproducing apparatus which uses an optical disk as a recording medium, which reads data recorded on media such as a compact disk, a laser disk, and a digital video disk using so-called optical pick-up means. Is the device. Optical recording and reproducing apparatuses have a wide range of uses as auxiliary storages of computers and as audio and video reproducing apparatuses.

FIG. 1A is a plan view of a conventional optical recording and reproducing apparatus, FIG. 1B is a schematic left side view of FIG. 1A, and FIG. 2 is a cross-sectional view of FIG. 1A taken along the line A-A '. Is shown.

Referring to the drawings, the tray 13 is movable in the upper plane of the deck 11, the optical disk (D) may be seated in a predetermined position on the tray (13). In FIG. 1A, the virtual line indicated by reference numeral 13 'shows a tray at unloading, and the solid line indicated by reference numeral 13 shows a tray at loading. The user can exchange the optical disc in the tray 13 'during unloading. A rack gear 16 is formed at one side of the bottom surface of the tray 13, which can be loaded or unloaded by engaging the pinion gear 17 of the loading motor installed at one side of the deck 11. .

The deck 11 is rotatably installed about the hinge 12. The spindle motor 19 is installed at one side of the deck 11, and the spindle motor 19 rotates the turntable 20. The disc catcher bracket 14 is provided in the deck 11 in the horizontal direction from the upper part of the tray 13, and the disk clamp 15 is provided in the center part. On the lower side of the deck 11, the optical pickup 18 is provided to be movable along the rail 21, thereby reading the optical record on the optical disk. The optical pickup 18 can be reciprocated by driving means, not shown.

In the optical recording and reproducing apparatus 10 of the prior art as described above, the function of fixing it to the turntable 20 at the time of rotation of the disc D is performed by the clamp 15 provided on the disc catcher bracket 14. In the loading position the bottom of the disk D is in contact with the turntable 20 and the top is in contact with the clamp 15. At this time, by allowing the turntable 20 and the clamp 15 to be mutually towed by the magnetic force or the elastic force, the disk D sandwiched therebetween can be stably rotated according to the rotation of the turntable 20.

However, in such an optical recording apparatus, there is a problem caused by the clamping action of the optical disk being performed by the clamp 35 held on the disk catcher bracket 14. First, upon unloading of the optical disc D, the tray protrudes out of the apparatus as indicated by reference numeral 13 ', in which there is no means for fixing the disc on the tray 13'. Therefore, if the optical recording / reproducing apparatus is used in a direction other than horizontal, the optical disk will be detached from the tray 13 ', and loading and unloading of the optical disk will be impossible. Another problem is a design problem in which the disc catcher break key 14 is installed over the transverse direction of the tray 13. That is, since the portion for holding the clamp 15 occupies a substantial portion of the space of the entire apparatus, miniaturization of the product and intensive arrangement of the parts are impossible.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and an object of the present invention is to provide an optical recording and reproducing apparatus in which the clamping action of the optical disk can be made effectively.

Another object of the present invention is to provide an optical recording and reproducing apparatus in which the clamping action of the optical disk can be made irrespective of the placement direction.

It is another object of the present invention to provide an optical recording / reproducing apparatus capable of intensive component placement and overall size, in particular, miniaturization of height.

In order to achieve the above object, according to the present invention, the deck; A tray holding the disk on the top; Tray drive means; A turntable for holding a disk on an upper surface thereof; Turntable driving means; Optical pickup; Drive means for optical pickup transfer; An optical recording and reproducing apparatus comprising: a clamp lever member rotatably provided on the tray to hold the clamp means. A playback device is provided.

According to another feature of the present invention, a conversion shaft member integrally formed on one side of the clamp lever member having a projection protruding from a circle and a circle so that the clamp lever member is reversibly maintained at two positions; It is further provided with a plate-shaped elastic member that is bent in part to be associated with the projection of the conversion shaft member and fixed to close the upper end of the groove formed in the upper portion of the tray.

According to another feature of the invention, the handle member is integrally formed on one side of the clamp lever member.

Hereinafter, the present invention will be described in more detail with reference to an embodiment shown in the accompanying drawings.

3 is a plan view of the magnetic recording and reproducing apparatus according to the present invention, and FIG. 4 is a schematic cross-sectional view taken along the line B-B 'of FIG.

The basic structure of the magnetic recording and reproducing apparatus according to the present invention is similar to the conventional one. Referring to the drawings, the tray 33 is installed in the upper portion of the deck 31 so as to reciprocate in the horizontal direction. The tray 33 can move by engaging a rack gear on the bottom, not shown, and a pinion gear of a loading motor, also not shown.

On one side of the deck 31, the spindle motor 39 is installed to rotate the turntable 40, and an optical pickup (not shown) is installed to move horizontally along the rail. Deck 31 is rotatable about hinge 32 to prevent the tray 33 and turntable 40 from interfering during loading or unloading.

According to a feature of the present invention, the clamp lever 34 is rotatably installed on the upper portion of the tray 33. At one end of the clamp lever 34, the shafts 42 and 43 and the conversion shaft 43 are integrally formed. The shafts 42, 43 are rotatably supported by a bearing integrally formed with the tray 33, so that the clamp lever 34 can rotate the shafts 42, 43 on the tray 33 with the rotation axis.

The clamp 35 is maintained at one side of the clamp lever 34. The clamp 35 holds the disk D by being in close contact with the center of the top surface of the disk D when the center of the bottom surface of the disk D is loaded on the turntable 40 by contacting the top surface of the turntable 40. Accordingly, the radius of rotation of the clamp lever 34 is set such that the bottom of the clamp 35 coincides with the top surface of the turntable 40 when the clamp lever 34 is in close contact with the tray 33. As described above, the clamp 35 may be towed with the turntable 40 by using magnetic force or elastic force of a spring, and the disk D sandwiched therebetween may be stably rotated.

The conversion shaft 44 integrally formed at one end of the clamp lever 34 is arranged on one straight line with the shafts 42 and 43 having the function of a rotating shaft. As can be seen in the cross-sectional view of FIG. 2B, the conversion shaft 44 is formed in a concave groove formed in the upper surface of the tray 33, the cross section of which consists of a circle and a projection portion projecting from the circle. The conversion shaft 44 is rotated in the groove, the rotation of which is limited by the leaf spring 41 fixed to the tray 33 by screws or the like. That is, the leaf spring 41 is connected to the protrusion of the conversion shaft 44 by closing the upper portion of the tray groove, thereby limiting the rotation of the conversion shaft 44.

In FIG. 4 the tray is shown as the loading position of the solid line indicated by reference numeral 33 and the unloading position of the imaginary line indicated by reference numeral 33 ', in which the conversion shaft is indicated by reference numerals 44 and 44'. have. That is, in the loading position, the projections of the conversion shaft are oriented in the 10 o'clock direction, while in the unloading position, they are oriented in the 2 o'clock direction. As long as no external force is applied, the orientation of this conversion shaft is maintained by the elastic force of the leaf spring 41, so that the clamp lever 34 can be maintained in two positions.

One side of the clamp lever 34, the handle 46 is formed integrally. The handle 46 allows the user to apply an external force to the clamp lever 34 so that it can be in close contact with or detached from the tray 33.

The operation of the optical recording and reproducing apparatus according to the present invention will be briefly described below.

In the initial state of the optical recording / reproducing apparatus 30, the tray is held at the unloading position indicated by the reference numeral 33 '. Accordingly, the clamp lever 34 'remains separated from the tray 33' by the interaction of the leaf spring 41 'and the conversion shaft 44'. In addition, the deck 31 does not interfere with the horizontal movement of the tray by keeping the hinge 32 rotated counterclockwise.

The user places the disk D at a predetermined position on the tray 33 ', and then applies a force to the handle 46' to bring the clamp lever 34 into close contact with the tray 33 '. At this time, the positions of the leaf spring 41 'and the conversion shaft 44' are converted to the positions 41 and 44 shown by solid lines. Next, the tray moves horizontally from the position of reference numeral 33 'to the position of 33 by the driving of a loading motor (not shown).

In the loading position, the deck 31 is rotated clockwise so that the turntable 40 comes into close contact with the bottom surface of the disk D. FIG. The clamp 35 of the clamp lever 34, which is already in close contact with the tray 33, is towed to each other by the turntable 40 and the magnetic force, so that the disk D may be stably held.

The transition from the loading state to the unloading state is in the reverse order of the action described above. Deck 31 rotates counterclockwise, and the tray moves horizontally from the position of reference numeral 33 to the position of reference numeral 33 '. At this time, the clamp lever 34 is kept in close contact with the tray by the interaction of the leaf spring 41 and the conversion shaft 44, so that the direction of the device does not deviate from the tray even if it is not horizontal. The user can disengage the disk D from the tray by pushing the handle 46.

The optical recording and reproducing apparatus according to the present invention is provided with a clamp lever capable of stably holding the disk in the tray so that the disk is not detached from the tray even in the unloading position regardless of the direction of the apparatus. It also has the advantage that the clamp is held by a clamp lever with a relatively simple design, allowing for compactness of the device and intensive placement of parts.

Although the present invention has been described with reference to one embodiment shown in the accompanying drawings, it is only an example, those skilled in the art will understand that various modifications and equivalent embodiments are possible from this. . Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

Claims (2)

A tray holding the disk on the top; An optical recording and reproducing apparatus comprising: a clamp lever member rotatably provided on the tray to hold the clamp means, and the clamp lever member at two positions; It is integrally formed on one side of the clamp lever member so as to be maintainable convertible, the cross-section is bent so as to be associated with the conversion shaft member and the projection of the conversion shaft member, the conversion shaft member having a projection protruding from the circular And a plate-shaped elastic member which allows the projection of the conversion shaft member to be held in one of the second positions by the curved portion so that the rotation of the conversion shaft member can be restricted. Device. The optical recording and reproducing apparatus according to claim 1, wherein a handle member is integrally formed on one side of the clamp lever member.