KR19990013051U - Changer flow prevention device for optical disc player - Google Patents

Abstract

The present invention discloses a changer flow preventing device for an optical disc player. The present invention has a seating groove is formed so that the optical disk is seated at an equal interval 120 degrees on the upper surface, the lower one side and a roulette formed with a support groove is located between the seating groove; A tray in which the roulette is seated so as to be rotated and a drive motor having a rotation shaft on which one side of the roulette is axially supported; Located on one side of the tray, the flow prevention means for preventing the flow of the roulette due to external impact by selectively intermittent the support groove formed on the lower one side of the roulette. Therefore, it is possible to prevent the flow due to the impact from the outside by appropriately interrupting and interrupting the release through the flow preventing means in accordance with the selection mode of the optical disk of the roulette constituting the changer. In addition, the selection of the optical disk can be performed stably, and through this, there is an effect that high-density recording and reproducing through the pickup unit can be performed.

Description

Changer flow prevention device for optical disc player

The present invention relates to an optical disc player (Optical Disc Player), and more particularly to an apparatus for preventing changer flow of the optical disc player to prevent the flow of the changer (Changer).

In general, optical disks are relatively high density recording and reproducing and semi-permanent storage compared to magnetic recording tapes and records, and thus optical disk players using them have been widely used in recent years. .

Such optical disc players include laser optical disc players and compact optical disc players. Among these optical disc players, compact optical disc players which are small in size and portable ( Abbreviated as CDP) is the most widely used.

In other words, the CDP has been proposed as a separate player, ie, portable or combined with an audio system, or in recent years, has been proposed as an automobile CDP in accordance with the trend of luxury vehicles.

On the other hand, such a conventional structure of the optical disc player is provided with a turntable which is rotated by a spindle motor inside the apparatus, and a separate tray is provided for mounting the optical disc D on the turntable. Front Loating is used to transfer the machine from the front to the rear.

In recent years, in order to facilitate the user's convenience, a changer has been provided so that it can be selected in a state where one or more optical disks D are seated on a tray.

An example of such an optical disc player is shown in FIGS. 1 and 2. In the front of the player body 10, a tray 20 is slidably installed in front and rear directions, and the player body 10 is provided. The inner surface of the conventional pick-up (pick-up) is built-in.

Meanwhile, as shown in FIG. 2, the changer 30 is positioned on the upper surface of the tray 20, so that the changer 30 may be mounted on the upper surface of the tray 20 at equal intervals of 120 degrees. The roulette 31 is provided with three seating grooves 31a. The roulette 31 is axially supported and rotated by the rotation shaft of the drive motor 32 positioned on the tray 20.

Therefore, when the user reproduces the recording from any of the optical discs D seated in the seating groove 31a of the roulette 31, the drive motor 32 is driven to rotate by mode selection. As a result, any one of the optical disks (D) is selected and at the same time the turntable (not shown) is tilted so that the pickup unit performs recording and reproduction therefrom while chucking the optical disk (D) through the chucking plate.

However, in such a conventional optical disc player, even if a slight impact is applied from the outside at the time when the change operation of the changer 30, that is, the roulette 31 is completed, the roulette 31 rotates the rotation shaft of the drive motor 32. As a result of the flow to the center as a result was a problem that can not be accurate tilting operation.

Moreover, the flow of the changer 30 causes a problem that recording and reproducing operations are not performed at all through the pickup unit, and as a result, there has been a factor of lowering consumer's reliability of the product.

The present invention is devised to solve the conventional problems as described above, the object of the present invention is to prevent the flow of the changer to smoothly perform the recording and playback through the pickup unit, the consumer's reliability of the product An object of the present invention is to provide a changer device for preventing changer of an optical disc player.

1 is a perspective view of a typical optical disc player,

2 is a perspective view partially showing a changer in the conventional optical disc player;

3 is a front view showing a changer flow prevention device of the optical disk player according to the present invention,

4 is a development view showing a state of formation of a guide groove formed on a guider according to the present invention;

Figure 5 is a plan view showing a roulette according to the present invention.

♣ Explanation of symbols for the main parts of the drawing ♣

10: main body 20: tray

30: Changer 31: Roulette

31a: seating groove 31b: support groove

32: drive motor 40: first gear

50: second gear 60: cylindrical guider

61: guide groove 61a: slope section

61b: vertical section 70: hooker

A feature of the present invention for achieving the above object is, in the optical disc player for recording and reproducing the information of the optical disc, a mounting groove is formed so that the optical disc is seated on the upper surface at equal intervals 120 degrees, A roulette formed on a side thereof with a support groove formed between the seating grooves; A tray in which the roulette is seated so as to be rotated and a drive motor having a rotation shaft on which one side of the roulette is axially supported; Located in one side of the tray, the flow prevention means for preventing the flow of the roulette caused by external impact by selectively intermittent the support groove formed on the lower side of the roulette; .

Hereinafter, one preferred embodiment of the changer flow prevention device of the optical disk player according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 5 are views for explaining the changer flow prevention device according to the present invention. In the following, the same components are described with reference to FIGS. 1 and 2.

First, referring to FIGS. 1 and 2, the tray 20 is slidably installed in the front and rear directions on the front of the player body 10, and is not shown on the inner surface of the player body 10. The usual pick-up is built in.

Meanwhile, as shown in FIG. 2, the changer 30 is positioned on the upper surface of the tray 20, and the changer 30 is formed so that the optical disk D may be seated at an equal interval of 120 degrees on the upper surface. Roulette 31 is provided with two seating grooves (31a), the roulette 31 is supported by the axis of rotation of the drive motor 32 located on the tray 20 is rotated.

The optical disk D seated in the seating groove 31a of the roulette 31 is rotated to a playback position, that is, a clamping position, by the user's choice. Such an optical disk D may be rotated once according to its seating position. It's called discs 2 and 3. And the user's selection is performed by the operation of the first to third play buttons (not shown).

As shown in Fig. 2 and 5, the support groove 31b is formed in the lower side of the roulette 31 with a predetermined width. At this time, the support groove 31b is formed in the center between the seating groove 31a at equal intervals of 120 degrees and is formed at the lower edge of the roulette 31.

By intermittent the support groove 31b formed on one side of the lower side of the roulette 31 on one side of the tray 20 described above, the roulette 31, that is, the entire changer 30 flows by an impact from the outside. Flow preventing means is provided to prevent it from becoming.

In the detailed structure of the flow preventing means, the first and second gears 40 and 50 are largely classified into cylindrical guiders 60, hookers 70, and springs S.

The first gear 40 is located directly below the above-described drive motor 32, and in particular, the first gear 40 is axially supported by the drive motor 32 to be rotationally driven. The second gear 50 is axially supported on the upper surface of one side of the tray 20 so that the second gear 50 is engaged with the first gear 40, and the rotation shaft 51 is extended to the center surface.

On the other hand, the cylindrical guider 60 is the lower center surface of the second shaft 50 is supported by the axis of rotation of the rotation shaft 51 is rotated, in particular the outer peripheral surface having a continuous inclined section 61a and vertical section 61b The guide groove 61 is formed in the outer diameter direction.

At this time, as shown in Figure 4, the guide groove 61 is formed so that the inclined and vertical sections (61a, 61b) three pitches, that is, the mounting groove formed at an equal angle of 120 degrees on the upper surface of the roulette 31 described above It should be formed with a pitch corresponding to (31a).

On the other hand, the hooker 70 is a hinge (71) is coupled to the center of one side of the tray 20 in a clockwise and counterclockwise direction, the hooker 70 is once the center around the hinge (71) The 70a is selectively coupled to the support groove 31b formed at one lower surface of the roulette 31, and the other end 70b is coupled to the guide groove 61 formed at the outer circumferential surface of the cylindrical guider 60. Here, the hooker 70 is formed in a substantially C shape and the center of the hinge 71 is coupled.

That is, the other end 70b of the hooker 70 is guided along the guide groove 61 of the cylindrical guider 60, whereby the hooker 70 is rotated about the hinge 71 so that one end 70a of the hooker 70 is rotated. It is selectively coupled to the support groove 31b of the roulette 31.

In addition, the hooker 70 is always elastically supported in the clockwise direction by the spring S located in the tray 20 on the lower side corresponding to the portion coupled to the support groove 31b of the roulette 31.

Referring to the operation of the changer flow prevention device of the optical disk player as described above are as follows.

3 and 4, when the mode for selecting the optical disk (D) seated in the seating groove (31a) through the roulette 31, the roulette 31 of the drive motor 32 The desired optical disc D is rotated so that the rotation axis can be selected. At this time, the flow preventing means in the rotation process of the roulette 31 is a state that does not interrupt the support groove 31b of the roulette 31.

That is, the other end 70b of the hooker 70 is formed between the first gear 40 rotated by the drive motor 32 and the second gears 40 and 50 meshed with the first gear 40. Sliding of the guide groove 61 of the cylindrical guider 60 rotated by the engagement is moved along the inclined section 61a, as a result, the hooker 70 is rotated counterclockwise around the hinge 71 As a result, one end 70a held in the support groove 31b of the roulette 31 is released from the support groove 31b, and as a result, the rotation of the roulette 31 is freed.

In this state, when the selection of the optical disk D is completed, the other end of the hooker 70 is located in the resin section 61b of the guide groove 61. In this case, the hooker 70 is connected to the spring S. Because it is in a state of being elastically supported in the clockwise direction by the elastic force of the spring (S) of the hooker 70 is rotated in the clockwise direction, one end (70a) of the hooker 70 is caught in the support groove 31b of the roulette 31 By doing so, it cracks down.

Therefore, the roulette 31 is prevented from being rotated by an impact from the outside, so that the selection of the optical disk D is made smoothly when the optical disk D selection mode is driven again. This allows high density recording and reproduction.

On the other hand, the above-described embodiment is merely to describe one preferred embodiment of the present invention, the scope of application of the present invention is not limited to such, and can be changed appropriately within the scope of the same idea. For example, the shape and structure of each component shown in the embodiment of the present invention can be modified.

As described above, according to the changer flow prevention device of the optical disk player according to the present invention, the impact from the outside by intermittently controlling and releasing the control through the flow prevention means according to the selection mode of the optical disk of the roulette constituting the changer The flow by can be prevented in advance.

Therefore, the selection of the optical disk can be performed stably, and through this, there is an effect that high-density recording and reproducing through the pickup unit can be performed.

Claims (3)

An optical disc player for recording and playing back information on an optical disc, Routing groove (31a) is formed on the upper surface so that the optical disk (D) is seated at equal intervals 120 degrees, the lower one side of the roulette 31 formed with the support groove (31b) to be located between the mounting groove (31a) )and; A tray 20 seated so that the roulette 31 can be rotated and a drive motor 32 having a rotation shaft on which one of the roulettes 31 is axially supported; A flow preventing means positioned on one side of the tray 20 and selectively intermittently supporting the support groove 31b formed on the lower side of the roulette 31 to prevent the flow of the roulette 31 due to an external impact; Changer flow prevention device of the optical disc player, characterized in that it comprises a. The method of claim 1, wherein the flow preventing means, A first gear 40 which is axially supported and rotated directly below the drive motor 32; A second gear 50 positioned on one side surface of the tray 20 and meshed with the first gear 40 to be driven to rotate; Cylindrical guider which is axially supported by the rotation shaft 51 of the second gear 50 and is rotated and has a guide groove 61 having an inclined section 61a and a vertical section 61b of a predetermined angle on an outer circumferential surface at a predetermined pitch. 60; One end 70a and the other end 70b are coupled to the support groove 31b of the roulette 31 and the guide groove 61 of the cylindrical guider 60 and hinged to one side of the tray 20. (71) a hooker 70 coupled; A spring positioned on an upper surface of one side of the tray 20 corresponding to one lower surface of the hooker 70 coupled to the support groove 31b of the roulette 31 to elastically support the hooker 70 in a clockwise direction ( S); changer device for preventing the change of the optical disk player comprising a. The optical disc player according to claim 2, wherein the guide groove 61 formed on the outer circumferential surface of the cylindrical guider 60 is formed at a pitch corresponding to the seating groove 31a formed on the upper surface of the roulette 31. Changer flow prevention device.