CN2300168Y - Disc Center Hole Clamping Device - Google Patents

Abstract

The utility model relates to a disk center hole clamping device of a CD-ROM drive, which is characterized by comprising a clamping disk, a magnetic conduction/magnetic component and a seat sheet, wherein the clamping disk is provided with a clamping tenon and a sleeve groove formed by the clamping disk, the magnetic conduction/magnetic component is sleeved in the sleeve groove, and the seat sheet is positioned above a CD-ROM drive body and is provided with the sleeve groove and a plurality of transverse baffle sheets. The utility model discloses not only the structure is simplified the equipment simple and convenient, has solved the problem of droing simultaneously because of magnetic conduction or magnetic component direct forming on the CD-ROM drive dish.

Description

Disc Center Hole Clamping Device

The utility model relates to a clamping device for a disc center hole of an optical disc player.

Today, when the CD-ROM or CD-ROM drive is quite cheap, it has not only become a basic equipment for personal computers, but also an indispensable must-have equipment for audio equipment, regardless of whether it is used for personal computers or It is an optical disc drive used in consumer products. Its internal mechanism is generally the same. It also uses a body to support an optical disc read/drive unit, and also has an in-out tray and related components. The only difference is that it is used for computers. The signal sent by the optical disc drive is converted into a format matching the computer bus, and the optical disc drive or audio-visual disc drive (VCD) used in the audio system only sends out audio signals or video signals. Because the utility model mainly improves the existing optical disc drive In terms of the mechanism for clamping the disc, only the clamping structure for clamping the disc inside the optical disc drive will be described here.

As shown in FIG. 5 , it is a three-dimensional schematic view of the clamping device of a conventional optical disc player. A seat 60 is straddled above the body 50 of the optical disc drive, and a seat hole 61 for fitting the clamping device is formed at the center of the seat 60 . And its clamping device is a clamping disc 70 assembled from the bottom of the seat 60 upwards, a magnetic/magnetic member 80 and a top cover 90 assembled downwards from the top of the seat 60 to form a three-piece Clamping device, the clamping plate 70 and the upper cover 90 are provided with corresponding buttonholes 71 and tenons 91, so that the magnetic/magnetic member 80 can be clamped in between, clamped and combined in an up and down manner After the seat sheet 60, it appears as shown in Figure 6. Since the upper cover 90 of the three-piece clamping device and the outer ring surface of the clamping disc 70 are wider than the seat hole 61, the clamping device is non-falling off. state, and the center of the inner surface of the upper cover 90 also forms a boss 92 downwards for pressing against the magnetic/magnetic member 80 so that it can be firmly held therein, and the magnetic/magnetic member 80 is mainly for being located in the optical disc drive The magnetic drive turntable in the body 50 is adsorbed, so that when the disc enters a specific position, the center hole of the disc can be clamped by virtue of mutual magnetic attraction, so that the disc rotates synchronously with the turntable.

However, the above-mentioned existing clamping device has many components and is relatively inconvenient to assemble. In terms of the number of components, such a simple structure must be composed of three components, which obviously does not meet the principle of economy. It must be fitted correspondingly at the upper and lower positions of the seat piece 60, and the assembly steps are also inconvenient and cause poor assembly efficiency. In addition, corresponding to the structure of the optical disc drive turntable that can absorb the clamping device in the body 50 , the combination between the magnetic/magnetic member and the turntable on the surface is only fixed by adhesion (not shown in the figure). The defect of magnetic/magnetic components falling off or loosening is likely to cause defects of poor positioning and deflection of the optical disc. Therefore, the above-mentioned existing clamping device has many components, inconvenient assembly, and the combination of the optical disc turntable and the magnetic/magnetic components is not good. defects, the author intends to provide a solution.

The main purpose of the utility model is to provide an improved optical disc driver disc central hole clamping device, which can form a device that only needs two components and can be directly inserted obliquely and pressed in to complete the assembly.

Another object of the present utility model is to provide an improved clamping device for the central hole of the optical disc drive, which can make the magnetic/magnetic member and the turntable have a better combination effect, so that it can be matched with the aforementioned clamping mechanism , to obtain better results.

The purpose of this utility model is achieved like this: a kind of optical disc drive disc central hole clamping device is characterized in that it comprises:

A clamping disc, the bottom surface of which is shaped to hold an optical disc, the upper surface is formed with a tenon and a groove defined by the tenon,

A magnetic/magnetic component, which can be inserted into the slot of the clamping disc and fixed by the tenon,

A seat, located above the body of the optical disc drive, is formed with a slot for fitting the clamping disc, and several horizontal baffles are formed above the slot,

One end of the clamping disc can be obliquely inserted into the sleeve groove, and then the other end of the clamping disc can be pressed down to pass through the rest of the cross-pieces and enter the predetermined position, thus forming a two-component disc clamping device that can be directly pressed down and installed .

In the disc center hole clamping device of the optical disc drive described above,

The sleeve groove on the seat piece can be non-circular or elliptical;

A convex ring can be formed in the center of the clamping disc, and the magnetically permeable/magnetic member fitted with it can have a corresponding middle hole;

The disc drive turntable corresponding to the clamping device can be provided with a direct-molded and embedded magnetic conduction/magnetic member.

Compared with the prior art, the utility model has obvious advantages and positive effects. Since the clamping device is changed to only a two-piece structure, consisting only of a clamping disc and a magnetic/magnetic member, an ellipse with several horizontal baffles formed on the wall surface is formed on the seat plate of the optical disc drive body. The clamping device only needs to obliquely extend one end of the clamping device into the elliptical sleeve, and then press down on the other end of the clamping device to use the elasticity of the horizontal block of the elliptical sleeve to make the clamping The end of the device can completely enter the elliptical sleeve over the cross-piece, and through the restriction of each cross-piece of the ellipse slot, it is not afraid that the clamping device will fall off outwards, so it is not only simple in structure, but also easy to assemble In addition, in terms of the corresponding drive turntable, because the magnetic/magnetic components of the optical disc drive turntable of the optical disc drive body are directly molded on the plastic turntable by embedding molding, it also makes It has the advantage of being more firmly combined and not loose.

Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.

Fig. 1 is an exploded view of the three-dimensional system of the disc center hole clamping device proposed according to the utility model.

FIG. 2 is a three-dimensional schematic view of the central hole clamping device of the optical disc according to the utility model when it is assembled on the main body of the optical disc drive.

Fig. 3 is a schematic cross-sectional view of the optical disc central hole clamping device according to the utility model when it is installed.

FIG. 4 is a schematic cross-sectional view of the central hole clamping device of the optical disc proposed according to the present invention after it is installed inside the optical disc drive body.

Fig. 5 is an exploded schematic view of a clamping device in the prior art.

Fig. 6 is an assembled cross-sectional view of a prior art clamping device.

The details and working conditions of the specific device proposed according to the utility model will be described in detail below in conjunction with the accompanying drawings, from which other purposes, features and advantages of the utility model can also be seen further.

Please refer to Fig. 1, the clamping device of the present invention is only composed of two components, one is a clamping disc 10, and the other is a combination of a magnetic/magnetic member 20, wherein the bottom surface of the clamping disc 10 is formed A type that can be used to clamp the central hole of the optical disc, and the top surface is integrally formed with a central convex ring 12 and a groove 13 that can fit the magnetic/magnetic member 20 defined by several tenons 11. The magnetic/magnetic member 20 is in the form of an annular block with a central hole 21 , which fits in the sleeve groove 13 of the clamping disc 10 and is clamped and fixed by each tenon 11 .

Referring to Fig. 2, on the corresponding structure of the optical disc drive body 30, that is, on the seat plate 31, an elliptical sleeve groove 32 (also can be circular) that can be inserted into the aforementioned two-piece clamping device is formed. Above the sleeve groove 32 are formed a number of transverse baffles 321-323 facing the central direction, and the two-piece clamping device can first extend into one end of the elliptical sleeve groove 32 at an inclined angle, and then lower the other end slightly. In addition, a drive unit 40 including a pickup head 41, a pickup head drive motor 42, a drive turntable 44, and a disc motor 43 is provided below the optical disc drive body 30. The drive turntable 44 is located below the tray 33 and is in a straight line corresponding state with the clamping device, and the magnetic conduction/magnetic member 45 attached to the drive turntable 44 is integrally injection molded and embedded on the drive turntable 44 .

Please refer to Fig. 3, if you want to combine the two-piece clamping device on the seat piece 31, firstly, the clamping plate 10 will be inclined at an appropriate angle to extend into the oval sleeve groove 32 and the two horizontal blocks 321, 322. At this time, the other end of the clamping disc 10 just abuts against the end of the cross-block 323 on the other side. When the manpower is slightly pressed downward, the elasticity of the cross-block 323 itself can be used. And make the clamping disc 10 cross the cross-piece 323 and enter into the elliptical cover groove 32 completely, so just complete the step of assembling, after assembling in this assembling mode, just not afraid that the clamping disc 10 falls off upwards, and in the optical disc drive During operation, as shown in FIG. 4 , the drive unit 40 of FIG. 2 swings upwards and drives the turntable 44 to rise. The magnetic components 20 can be attracted to each other as a whole, and rotate synchronously with the rotation of the driving turntable 44 .

Claims (5)

1. a disk in optical disk player center pit clamping device is characterized in that, comprising:

One clamping disk, its bottom surface form can be for the shape of clamping CD-RW discsCD-RW, and upper surface is to be formed with trip and to be defined the grooving that forms by trip;

One magnetic conduction/magnetic component can be inserted in and be fixed by trip by the grooving place of clamping disk;

A sheet is positioned at the top of CD-ROM device body, is formed with on it to be formed with several strut rail sheets above grooving for the grooving of fit clamping disk;

Can rely on clamping disk to tilt stretch in the grooving with an end, press down again clamping disk in addition end cross all the other strut rail sheets and enter to the precalculated position, constitute two members according to this and directly press down the video disc clamping device of installation.

2. disk in optical disk player center pit clamp structure according to claim 1 is characterized in that, the grooving on the described seat sheet is non-circular.

3. disk in optical disk player center pit clamp structure according to claim 1 is characterized in that, the grooving on the described seat sheet is oval.

4. disk in optical disk player center pit clamp structure according to claim 1 is characterized in that, described clamping disk central authorities are provided with bulge loop, and the magnetic conduction/magnetic component of fit has corresponding mesopore with it.

5. disk in optical disk player center pit clamp structure according to claim 1 is characterized in that, described laser disc driving rotating disk that can be corresponding with clamping device is provided with straight forming and is magnetic conduction/magnetic component of imbedding pattern.

Images