KR19980050416U - Disc clamping device for optical disc players - Google Patents

Abstract

The present invention discloses a disc clamping device of an optical disc player.

The present invention is located in the upper portion of the tray and the guide groove is formed in the center plane in the conveying direction of the optical disk, the left and right incision grooves are formed between the guide grooves, the left and right incision groove and guide groove A clamp guide bracket formed by bending an inclined plate inclined upwardly therebetween; It is located on one side of the tray and is moved along the guide groove of the clamp guide bracket with the transfer of the tray, the clamper is installed to be able to move up and down around the inclined plate; clamp guide bracket having an inclined plate And it is to clamp the optical disk on the turntable through the linking operation of the tray for sliding conveying the clamper is pressed, there is no need for a separate clamping device. Therefore, assembly and productivity can be improved, and in particular, there is an advantage in that a stable clamping operation can be performed.

As a result, there is an effect of further improving the reliability of the device employing the optical disk player.

Description

Disc clamping device for optical disc players

The present invention relates to an optical disk player, and more particularly, to a disk clamping device for seating an optical disk on a turn table.

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

Such optical disc players include a laser disk player and a compact disk player. Among such optical disk players, a compact disk player which is small in size and portable (hereinafter referred to as CDP) Abbreviation) is the most common.

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.

Figure 1 shows an optical disk player as such is generally applied for automobiles.

This, the drive motor (M) is located on the inner surface of the main chassis 1, a plurality of gear groups (G) rotated by the drive motor (M) is located on one side of the front. At this time, one end of the rotating shaft 2 rotatably supported by the main chassis 1 of the other end of the gear g on the side corresponding to the gear g is press-fitted. That is, the rotation shaft 2 is rotationally driven by the gear g.

Further, on the outer circumferential surface of the rotary shaft 2, an elongated guide roller 3 which is interlocked and rotated by the rotation of the rotary shaft 2 is inserted.

Meanwhile, the upper surface of the main chassis 1 is in contact with and presses the upper surface of the optical disk D guided by the guide roller 3, thereby guiding the optical disk D together with the guide roller 3. The front top plate 4 for generating the pressing force is provided.

In addition, a chucking plate 5 is positioned above the rear surface of the main chassis 1 to receive the power from the driving motor M to chuck the optical disk D rotated at a predetermined angle and seated on the turntable. do.

The optical disk player configured as described above, when the optical disk D is inserted from the front surface of the main chassis 1, is driven to rotate by receiving power from the driving motor M through a plurality of gear groups G. The optical disk D is guided by the pressing force between the guide roller 3 and the front top plate 4 to be seated on the turn table and simultaneously chucked by the chucking plate 5 and driven to rotate together with the turn table. It is recorded / played back by the Pick-up Unit.

However, in such a vehicle optical disc player, there are many problems listed below.

First, since the material of the guide roller (3) is a rubber (Rubber), the wear resistance is poor, so that the loading of the optical disk can not be made smoothly when used for a long time,

Secondly, the design difficulty of precisely controlling the friction coefficient between the rotating shaft 2 and the guide roller 3,

Third, when a slip occurs between the rotating shaft 2 and the long guide roller 3 due to the above-described problem, the loading is not performed.

In order to solve such a problem, the present applicant has proposed an improved automotive optical disc player as shown in FIGS. 2 and 3.

That is, the main chassis 10, the tray (20) located on the inner surface of the main chassis 10 and the tray 20 for sliding conveying along the inside and the outside of the main chassis 10 It is roughly classified as a guiding means.

Clamp chassis 12 having a clamper (clpmper; 11) provided at the center front of the rear side of the main chassis 10 is hinged to be rotatable, and in particular, one side of the main chassis 10 is an optical disk (D). The guide groove 10a is formed in the cutting direction in the traveling direction.

On the other hand, the tray 20 has an optical disk D seated on its upper surface, and has a substantially plate-like shape. Moreover, the groove | channel 20a of predetermined width is formed in the rear center surface of this tray 20 toward the front surface.

The above-mentioned guiding means is located on the inner surface of the main chassis 10, that is, provided on the side opposite to the portion where the guide groove 10a is formed, and the detailed structure of the guiding means guides the main chassis 10. From one side of the tray 20 corresponding to the groove 10a, the guide jaw 21 is slidably inserted into the guide groove 10a.

On the other hand, the drive motor (M) and the plurality of gear groups (G) rotated by the drive is located on the inner surface of the main chassis 10 facing the portion where the guide groove (10a) is formed.

In addition, one side of the main chassis 10 is located along the longitudinal direction, that is, the conveying spring 30 in the sliding conveying direction of the tray 20, one end of the conveying spring 30 is the above-described drive motor ( It is fixed to the final gear (g) of the plurality of gear group (G) that is rotationally driven by M), the other end is rotatable on the guide bracket 13 located on the rear inner surface of the main chassis (10). Combined.

At least one or more guiders 40 and 40 'extend from one side of the tray 20 corresponding to the transfer spring 30, and the guiders 40 and 40' are formed of a transfer spring ( It is inserted to receive the feed force by the rotation of 30). That is, the spiral groove is formed so that the transfer spring 30 is inserted into each of the inner surface.

As described above, the applicant of the present application, the optical disk player is to load and unload the optical disk through the tray 20, so that there is an advantage of stabilization compared to the loading and unloading operation through the conventional roller, As with the optical disc player, in order to clamp the optical disc, it is necessary to provide a mechanical device that needs to rotate the clamp plate separately, thereby incurring problems of deterioration in assembly and productivity and, in particular, the cost increase due to the large number of parts. have.

The present invention has been devised to solve the problems of the applicant of the present application, the optical disk player, it is possible to clamp the optical disk on the turntable through a simple mechanical device to improve the assembly and productivity, In particular, it is an object of the present invention to provide a disk clamping device for an optical disk player that can achieve cost reduction.

In order to achieve the above object, a disc clamping apparatus of an optical disc player according to the present invention includes a main chassis in which a turn table is located on one inner surface of the optical disc player, and a slidable installation of the main chassis in a guiding means. An optical disc player comprising a tray for guiding an optical disc on a surface, wherein the guide groove is formed in the center surface of the tray, and a guide groove is formed in the transfer direction of the optical disc, and a left and right incision is formed between the guide grooves. A groove is formed, and a clamp guide bracket having an inclined plate inclined upwardly between the left and right incision grooves and the guide groove; And a clamper positioned on one side of the tray and slidingly moved along the guide groove of the clamp guide bracket along with the transfer of the tray, and installed to be able to move up and down about the inclined plate. .

1 is a plan view of a conventional optical disc player.

2 and 3 are a plan view and an excerpt sectional view of an optical disc player filed by the present applicant.

4 is a plan view conceptually illustrating an optical disc player according to the present invention;

Figure 5 is a side view of the excerpt showing the coupling of the clamper and the clamp guide bracket.

Figure 6 is a perspective view showing an extract of the clamp guide bracket.

<Description of the code | symbol about the principal part of drawing>

20: Tray 60: Clamp Guide Bracket

61: guide groove 62,63: left and right incision groove

64,65: inclined plate 70: clamper

71,72: upper and lower flange 73: magnet

Such a characteristic configuration and the resulting effects of the present invention will become more apparent from the detailed description of the invention with reference to the accompanying drawings to be described later.

4 is a plan view conceptually showing an optical disk player according to the present invention, FIG. 5 is an excerpted side view illustrating the coupling of the clamper and the clamp guide bracket, and FIG. 6 is a perspective view illustrating the clamp guide bracket. 2 and 3, the same components are denoted by the same reference numerals.

First, referring to FIGS. 2 and 3, a turn table (not shown) on which an optical disk is mounted is positioned on one inner surface of the main chassis 10. In addition, the guide groove (10a) is formed in one side of the main chassis 10 in the advancing direction of the optical disk (D).

On the other hand, as a guiding means for loading / unloading the tray 20 for transporting the optical disk, the guide groove (from one side of the tray 20 corresponding to the guide groove 10a of the main chassis 10) ( A guide jaw 21 is inserted into the slide 10a and slidably formed therein.

On the other hand, the drive motor (M) and the plurality of gear groups (G) rotated by the drive is located on the inner surface of the main chassis 10 facing the portion where the guide groove (10a) is formed.

In addition, one side of the main chassis 10 is located along the longitudinal direction, that is, the conveying spring 30 in the sliding conveying direction of the tray 20, one end of the conveying spring 30 is the above-described drive motor ( It is fixed to the final gear (g) of the plurality of gear group (G) that is rotationally driven by M), the other end is rotatable on the guide bracket 13 located on the rear inner surface of the main chassis (10). Combined.

At least one or more guiders 40 and 40 'extend from one side of the tray 20 corresponding to the transfer spring 30, and the guiders 40 and 40' are formed of a transfer spring ( It is inserted to receive the feed force by the rotation of 30). That is, the spiral groove is formed so that the transfer spring 30 is inserted into each of the inner surface.

On the other hand, at this time, the transfer spring 30 is formed to extend in the longitudinal direction there is a risk of sagging itself. Therefore, in order to prevent this, the c-shaped bracket 50 is installed in the longitudinal direction so as to surround the transfer spring 30 from one side of the main chassis 10 as shown in FIG.

4 to 6, a clamp guide bracket formed by cutting a guide groove 61 in a predetermined length in the sliding conveying direction of the optical disk, that is, in the longitudinal direction, on the center surface of the tray 20. ; 60 is fixedly installed.

In this case, left and right cutout grooves 62 and 63 are formed along the longitudinal direction on both sides of the clamp guide bracket 60, that is, around the portion where the guide groove 61 is formed. From between the cut grooves 62 and 63 and the guide groove 61 at the center, as shown in FIG. 6, the inclined plates 64 and 65 bent obliquely upward are formed.

On the other hand, the clamper 70 is fixedly installed on the tray 20 described above, and the upper and lower ends of the upper and lower flanges 71 and 72 of the clamper 70 are upward and downward with respect to the inclined plates 64 and 65. It is arranged and, in particular, is installed to be movable around it.

Reference numeral 73 is a magnet provided on the lower surface of the clamper 70.

The disc clamping device of the optical disc player according to the present invention configured as described above is installed to be movable up and down on the tray 20 before the optical disc is first slidingly transferred, that is, before the tray 20 is slid toward the turntable. The clamper 70 is located in a flow free state in the space between the inclined plates 64, 65 of the clamp guide bracket 60, as shown in solid lines in FIG.

In this state, when the tray 20 is slid and moved toward the turntable through the guiding means, a clamper 70 located at one side of the tray 20 is formed at the center surface of the clamp guide bracket 60. Sliding transfer along the guide groove 61, and at some point the bending point of the inclined plates 64, 65 formed in the clamp guide bracket 60 is reached.

At this time, when the tray 20 is slid and moved toward the turntable, the upper surface of the lower flange 72 of the clamper 70 is pressurized by the lower surfaces of the inclined plates 64 and 65, as shown in phantom in FIG. And at the same time the clamper 70 is to be transported downward.

When the tray 20 coincides with the turn table, the clamper 70 is lowered completely by the inclined plates 64 and 65 to clamp the optical disk on the turn table.

At this time, the actual clamping operation between the clamper 70 and the turn table is performed by the suction force between the magnet 73 provided on the lower surface of the clamper 70 and the iron pieces provided on the turn table (not shown).

In releasing the clamping force in this state, the clamper 70 is moved together to the front surface of the main chassis 10 in conjunction with the withdrawal operation of the tray 20, that is, by an operation opposite to the aforementioned clamping operation. The clamping force can be easily released.

According to the disk clamping apparatus of the optical disk player according to the present invention as described above, to clamp the optical disk on the turn table through the coupling operation of the clamp guide bracket having the inclined plate and the tray for sliding conveying the clamper pressurized by this. As a result, a separate device for clamping is unnecessary. Therefore, assembly and productivity can be improved, and in particular, there is an advantage in that a stable clamping operation can be performed.

As a result, there is an effect of further improving the reliability of the device employing the optical disk player.

Claims (1)

An optical disc player comprising a main chassis having a turn table positioned on one side thereof, and a tray slidably installed in the main chassis through a guiding means, the tray guiding the optical disk on the turn table. Located in the upper portion of the tray 20, the guide groove 61 is formed in the center plane in the conveying direction of the optical disk, the left and right incision grooves 62, 63 are formed between the guide grooves 61. A clamp guide bracket 60 formed between the left and right incision grooves 62 and 63 and the guide groove 61 inclined upwardly inclined plates 64 and 65; Located on one side of the tray 20 is moved along the guide groove 61 of the clamp guide bracket 60 with the transfer of the tray 20, the upper and the center of the inclined plate (64, 65), And a clamper (70) installed to be movable downwards.