KR100300606B1 - Apparatus for loading disk - Google Patents

Abstract

The present invention relates to a disc loading apparatus, and in particular, a first guide and a second guide formed on both sides of a cdrom case so as to contact both ends of the disc and have different coefficients of friction, and the disc is rotated when the disc is inserted into the cdrom case. Thereby providing a thin disk loading device composed of a loading means installed between the first guide and the second guide such that the disc is conveyed to the upper side of the turntable by the friction difference between the first guide and the second guide. The height has been greatly reduced, making the CD-ROM case as thin as possible, enabling a 12.7 mm thick notebook CD-ROM drive mechanism.

Description

Thin disk loading device {Apparatus for loading disk}

The present invention relates to a disc loading apparatus, and in particular, when a disc is inserted into a CD-ROM, the disc is automatically transferred to the upper side of the turntable without any user's manipulation, and the thin disc is thin enough to be applied to a slim slot CD-ROM drive mechanism for a notebook. Relates to a loading device.

Until now, when the turntable structure appeared outside the case, a tray type loading method in which a disk was mounted thereon and then the above turntable structure was introduced into the case, but such a tray type loading method has various problems depending on the entry and exit of the turntable. It became.

In order to improve the problems of the tray type loading method, a slot-in type loading method has been developed, and the slot-in type loading method requires a driving device for entering and exiting the turntable as the turntable is fixed inside the case. Of course, the handling problems that may occur due to the entry and exit of the turntable are eliminated, thereby effectively loading the disc.

1 is a block diagram illustrating a disk loading apparatus according to a first embodiment of the prior art, FIG. 2 is an operation diagram of FIG. 1, and FIG. 3 is a cross-sectional view of FIG. 1.

1 to 3, in the first embodiment according to the prior art (US Patent 4,677,607 (July 30, 1987)), when the disk D is inserted between the upper and lower guide rollers 1a and 1b. The disk input signal is transmitted to the motor 3 to drive the motor 3.

Then, the rotational motion of the motor 3 is through the combination of the worm (4a, 4b, 4c, 4d), worm wheels (5a, 5b, 6a, 6b), racks (7, 8), respectively, the horizontal link (9) and It is converted into the linear motion of the vertical link (10).

Thereafter, the linear movement of the vertical link 10 is transmitted to the eject controller 12 coupled to the end of the rotary link 11 through the rotary link 11 connected to the vertical link 10, and the eject controller ( 12 is moved in the insertion direction of the disk D.

At the same time, the linear motion of the horizontal link (9) is transmitted to the loading roller 13 coupled to the horizontal link (9), and thus the loading roller (13) receiving the kinetic force through the horizontal link (9) The disk (D) is pushed on the side of the disk (D).

At this time, the disk (D) is supported by the guides (14a, 14b) installed in the case so as to contact both sides of the disk (D), respectively, by the operation of the loading roller 13 and the eject controller 12 It is moved in the insertion direction of D) to be seated on the turntable. In this way, the loading operation of the disk D is completed.

However, according to the first embodiment of the present invention, the motor 3 for loading the disk D, the worms 4a, 4b, 4c, 4d, the worm wheels 5a, 5b, 6a, 6b, and the rack ( 7, 8), horizontal link (9), vertical link (10), rotary link (11), ejector controller 12, loading roller 13, etc. are all arranged up and down for notebooks having a thickness of 12.7mm There was a problem that the thinning for application to a CD-ROM drive is structurally impossible.

In other words, in a 12.7mm thick CD-ROM drive for notebooks, the upper and lower clearances occupied by the upper and lower plates of the case, the upper and lower spaces occupied by the 3mm and the turntable, and 8.6mm are actually only 2.1mm. Therefore, it is impossible to apply the first embodiment to the disk loading apparatus.

In addition, since the pushing force of the loading roller 13 extends to the disk D only after 50% or more of the disk D is inserted through the upper and lower guide rollers 1a and 1b. In order for the disk D to be automatically moved to the turntable, a user must directly insert 50% or more of the disk D into the case, thereby failing to implement the user's ease of handling, which is the purpose of the slot-type loading method. there was.

4 is a block diagram illustrating a disk loading apparatus according to a second embodiment of the prior art, FIG. 5 is an operation diagram of FIG. 4, and FIG. 6 is a cross-sectional view of FIG. 4.

4 to 6, in the second embodiment according to the prior art (US Patent 4,674,079 (July 16, 1987)), when the disk D is inserted into the case by the motor driving reference amount, the disk D is The positions of the vertices are positioned between the first, second and third cone members 21a, 21b and 21c arranged in the form of triangles.

Thereafter, when the motor 22 is driven, the first cone member 21a positioned in the insertion direction of the disk D is linearly moved, and when the first cone member 21a is moved, the first cone member 21a is moved to the first cone member 21a. The first loading link 23 and the second loading link 24 having one end coupled to each other through the sliding holes 23 'and 24' are operated.

In this case, the first loading link 23 and the second loading link 24 are respectively operated in the direction in which the other ends are closer to each other, the other end of the first loading link 23 and the second loading link 24 Each of the second cone member 21b and the third cone member 21c is coupled.

Accordingly, the second cone member 21b and the third cone member 21c are sliding holes 25a and 25b formed on the upper plate of the case according to the operation of the first loading link 23 and the second loading link 24. While moving in a) to push both sides of the disk (D), respectively, by the pushing force of the second cone member 21b and the third cone member (21c) the disk (D) is to be inserted into the inside of the case do.

Subsequently, the second cone member 21b and the third cone member 21c reach the ends of the sliding holes 25a and 25b so that when the insertion of the disk D is completed, the second cone member 21b and the third cone member 21c are positioned above the disk D. Thus, the first clamping link 27 and the second clamping link 28, which fixed the clamper 26 formed of magnets, are operated.

Thereafter, the clamper 26, which is freed from the restraint of the first clamping link 27 and the second clamping link 28, descends to the lower side, and the disk D is driven by the magnetic force of the clamper 26 thus lowered. It is seated on a disk hub 29 formed on the turntable. In this way, the loading operation of the disk D is completed.

However, according to the second embodiment of the present invention, the link structure formed on the upper plate of the case, the motor and driving device for operating the link structure, and the disk D are mounted on the disk hub 29 of the turntable. Since the clamper 26 moved up and down occupies a lot of up and down space, there is a problem in that it is structurally impossible to reduce the thickness of the clamper 26 to be applied to a CD-ROM drive for a notebook of thickness 12.7 mm.

In addition, according to the second exemplary embodiment, the pushing force of the second cone member 21b and the third cone member 21c does not reach the disk D only after 50% or more of the disk D is inserted into the case. Therefore, in order for the disk D to be automatically moved and settled on the turntable, a user must insert 50% or more of the disk D directly into the case so that the user's ease of handling, which is the purpose of the slot-type loading method, is not properly implemented. There was a problem.

7 is a block diagram showing a disk loading apparatus according to a third embodiment of the prior art, Figure 8 is a perspective view showing a loading roller used in the third embodiment of the prior art.

The third embodiment of the prior art (US Patent 5,097,460 (March 17, 1992)) has a structure for guiding a disk so that the center of the disk coincides with the center of the turntable, so that it can operate on two kinds of disks having different outer diameters. It is a slot-type loading method that is applied to a disc player.

Referring to FIGS. 7 and 8, only the structure for loading the disk D is described. First, when the disk D is inserted into the case, four protrusions 41 and 42 having outer diameters of the disk D formed on the respective links are illustrated. , 43, 44 are supported by the loading roller 45 installed below the disk D so that the center of the disk D is coincident with the center of the turntable, and the bottom surface of the disk D is in contact with both ends. The disk D is moved by this.

At this time, the loading roller 45 is operated by receiving a driving force through a combination of the motor and the gear, the diameter is reduced in shape as the closer to the center at both ends. This is for the loading roller 45 to contact only the non-information surface other than the information surface of the disk D so that the information recorded on the disk D is not damaged.

Subsequently, when the disk D is inserted to a predetermined position by the loading roller 45, the loading roller 45 is flipped backward and additional insertion of the disk D is performed by protrusions installed in front of the loading roller 45. This will be prevented. In this way, the loading operation of the disk D is completed.

However, according to the third embodiment of the related art, the link structure is installed on the upper plate of the case to match the center of the disk D with the center of the turntable, and a motor and gear combination for driving the loading roller 45. In addition, since the loading roller 45 is folded up and down and takes up a lot of space in the up and down space, there is a problem in that it is structurally impossible to apply a thinner to a CD-ROM drive for a 12.7 mm thick notebook.

9 is a block diagram illustrating a disk loading apparatus according to a fourth embodiment of the prior art, and FIG. 10 is an operation diagram of FIG. 9.

The fourth embodiment of the prior art (U.S. Patent 5,737,285 (April 7, 1998)) is a type loading method that is a slot applied to a disc player changer capable of storing and playing a plurality of discs.

Referring to FIGS. 9 and 10, only the structure for loading the disc D, first, when the disc D is inserted into the case, the crosspiece 61 is installed so as to open laterally in proportion to the degree of insertion of the disc D. 61a and 61b are operated.

At this time, the fixing guide 62 is fixed to the friction belt 63 is installed on the right side of the crossbar 61, the timing belt 65 and the pulley 66 is mounted on the left side of the crossbar 61. Guide 64 is provided, the fixed guide 62 and the driving guide 64 serves to guide the insertion of the disk (D).

When the crossbar 61 is opened to some extent in the lateral direction, the detection protrusion 67 mounted on the crossbar 61 passes through the optical sensor 68, and the motor is detected by the detection result of the optical sensor 68. Will be driven.

When the motor is driven, the pulley 66 mounted on the driving guide 64 is rotated so that the timing belt 65 moves. As the timing belt 65 is driven, the disk D moves to the friction belt ( There is a friction difference between the point of contact with 63 and the point of contact with the timing belt 65.

That is, the friction coefficient of the friction belt 63 is relatively large, the friction coefficient of the timing belt 65 is relatively small compared to the friction belt 63, the disk (D) and friction belt (63), In addition, a friction difference occurs between the point where the disk D and the timing belt 65 contact each other.

Accordingly, the disk D inserted between the fixing guide 62 and the driving guide 64 may have a driving force obtained from the timing belt 65 and between the friction belt 63 and the timing belt 65. On the basis of the friction difference, the friction belt 63 is moved to the insertion direction of the disk D while being rotated as a point.

At this time, the fixing guide 62 and the driving guide 64 is moved in the transverse direction with the crosspiece 61 when the crosspiece 61 is opened according to the insertion degree of the disk (D), so the friction belt 63 ) And the pressure caused to the disk (D) due to the friction between the timing belt 65 is automatically released.

Thereafter, when the disk D reaches the upper side of the turntable through the operation of the friction belt 63 and the timing belt 65, the fixing guide 62 and the driving guide 64 are further left and right by a predetermined amount. It happens This is to prevent the rotation of the disk D by the fixing guide 62 and the driving guide 64 when the disk D is rotated through the turntable.

When the disk D is freed from the fixing guide 62 and the driving guide 64 as described above, the link holding the clamper 71 formed of a magnet in relation to the operation of the fixing guide 62 and the driving guide 64. (69, 70) is operated so that the clamper 71 is lowered toward the disk (D).

When the clamper 71 is lowered toward the disk D, the disk D is seated on the turntable by the magnetic force of the clamper 71. In this way, the loading operation of the disk D is completed.

However, the fourth conventional embodiment as described above includes a separate motor that is independent of the operation of the turntable to drive the timing belt 65 and the pulley 66 for moving the disk D, and the disk D. ), Because the clamper 71 moved up and down to seat the turntable occupies a large amount of up and down space, there is a problem in that it is structurally impossible to apply a thinner to a CD-ROM drive for a notebook having a thickness of 12.7 mm. `

In addition, according to the fourth embodiment of the present invention, the fixing guide 62 and the driving guide 64 may be left and right more than the diameter of the disk D so that the disk D may be rotated through the turntable. Free space and the installation space of the timing belt 65 and the pulley 66, which are mounted on the driving guide 64 to move the disk D, occupy a large amount of space on the left and right, so that the vertical space is not applicable to the CD-ROM drive for notebooks. In addition, there was a serious problem with the constraints on the left and right spaces.

In conclusion, the above-described first, second, third, and fourth embodiments of the present invention have a structure in which most of the components constituting the system are arranged up and down. Not suitable for thick CD-ROM drives. Therefore, there is a need for a new type of disk loading apparatus that can make this possible.

The present invention has been made to solve the above problems, and the CD-ROM for notebooks having a thickness of 12.7 mm, 129 mm wide by having a structure in which the top and bottom height and the left and right width of the overall system is greatly reduced to minimize the size and minimize the CD-ROM case It is an object of the present invention to provide a thin disk loading device in which a drive mechanism can be implemented.

1 is a block diagram showing a disk loading apparatus according to a first embodiment of the prior art,

2 is an operation diagram of FIG.

3 is a cross-sectional view of FIG.

4 is a block diagram showing a disk loading apparatus according to a second embodiment of the prior art,

5 is an operation diagram of FIG. 4,

6 is a cross-sectional view of FIG.

7 is a block diagram showing a disk loading apparatus according to a third embodiment of the prior art,

8 is a perspective view showing a loading roller used in the third embodiment of the prior art,

9 is a block diagram showing a disk loading apparatus according to a fourth embodiment of the prior art,

10 is an operation diagram of FIG. 9,

11 is a block diagram showing a thin disk loading apparatus according to the present invention,

12 is a plan view showing a coupling structure of a worm, a rack, a worm wheel, and a loading roller in a thin disk loading device according to the present invention;

Figure 13 is a cross-sectional view showing a coupling structure of the worm, rack, worm wheel, loading roller in the thin disk loading apparatus according to the present invention.

<Explanation of symbols for main parts of the drawings>

101: first guide 102: second guide

110: loading means 111: worm (Worm)

112: rack 113: Worm Wheel

115: loading roller

Features of the thin disk loading apparatus according to the present invention for achieving the above object, the first guide and the second guide formed on both sides of the CD-ROM case so as to be in contact with both ends of the disk and have a different coefficient of friction, When inserted into the CD-ROM case, by rotating the disk is configured to the loading means provided between the first guide and the second guide so that the disk is conveyed to the upper side of the turntable by the friction difference between the first guide and the second guide.

In addition, an additional feature of the present invention is that the loading means has one end connected to the motor and installed in the CD-ROM case long in the insertion direction of the disk (Worm) rotated by the driving force of the motor, and the worm at a predetermined interval A rack installed in parallel with each other, a worm wheel installed between the worm and the rack and rotated by a relative movement between the two wheels, and a worm wheel coupled to contact a disk on an upper side of the worm wheel. It is composed of a loading roller for rotating the disk while rotating and moving with.

In addition, an additional feature of the present invention is that the loading roller is formed with an insertion groove into which the disk is inserted along the outer surface.

The present invention configured as described above has the advantage that the CD-ROM drive mechanism for notebooks having a thickness of 12.7 mm and a width of 129 mm can be implemented because the CD-ROM case is minimized and minimized because the vertical height and the left-right width of the overall system are greatly reduced.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

11 is a block diagram showing a thin disk loading apparatus according to the present invention, Figure 12 is a plan view showing a coupling structure of the worm, rack, worm wheel in the thin disk loading apparatus according to the present invention, Figure 13 In the thin disk loading apparatus according to the invention is a cross-sectional view showing a coupling structure of a worm, rack, worm wheel, loading roller.

11 to 13, a thin disk loading apparatus according to the present invention includes a first guide 101 and a first guide 101 formed on both sides of a CD-ROM case so as to contact both ends of the disc D and have different coefficients of friction. 2 When the guide 102 and the disk D are inserted into the CD-ROM case, the disk D is rotated by the friction difference between the first guide 101 and the second guide 102. It is composed of a loading means 110 installed between the first guide 101 and the second guide 102 to be transferred to the upper side of the turntable.

In the above, the loading means 110 is one end is connected to the motor and installed in the CD-ROM case long in the insertion direction of the disk (D) is rotated by the driving force of the motor, and the worm 111 and constant Rack 112 is installed parallel to each other with a gap between the worm 111 and the rack 112 is installed between the worm wheel 113 and the linear movement while rotating by the relative movement between the two, and the worm wheel 113 An insertion groove 115 'which is integrally coupled to the upper side of the upper side and inserted into the end of the disk D is formed along the outer surface thereof so that the disk D rotates while being rotated and moved together with the worm wheel 113. It consists of a roller 115.

Here, the worm wheel 113 and the loading roller 115 are integrally coupled to each other by one shaft 114, the lower end of the shaft 114 by the guide rail 116 installed on the bottom surface of the cdrom case. You are constrained.

In addition, the rack 112 is fastened by a plurality of screws to the wall surface of the CD-ROM case and the guide rail 116 is fixed to the CD-ROM case.

In addition, the worm wheel 113 and the loading roller 115 is about 0.7 to 0.8d in the left and right directions of the disk (D) by the loading roller 115 when the diameter of the disk (D) is d It is installed to bite.

The thin disk loading apparatus according to the present invention configured as described above operates as follows.

First, when the disk D is inserted into the CD-ROM case by the motor driving reference amount and the end of the disk D is snapped into the insertion groove 115 ′ of the loading roller 115, the motor is driven to rotate the worm 111. .

At this time, the insertion amount of the disk (D) by the user is usually about 1/3 to 1/4 of the disk (D), it is possible to adjust according to the installation position of the worm wheel 113 and the loading roller 115. .

When the worm 111 is rotated, the worm wheel 113 installed between the worm 111 and the rack 112 is rotated by the relative movement of the worm 111 and the rack 112 in the insertion direction of the disk D. It is linearly moved along the rack 112.

When the worm wheel 113 is rotated and moved, the loading roller 115 coupled by the shaft 114 on the upper side of the worm wheel 113 is rotated together with the worm wheel 113 to move linearly in the insertion direction of the disc D. do.

When the loading roller 115 is operated as described above, the disk D held by the insertion groove 115 'of the loading roller 115 is rotated by the loading roller 115, and thus the loading roller 115 is rotated. The rotated disk D is moved by the friction difference between the first guide 101 and the second guide 102.

That is, the disk D is rotated with the friction coefficient of the surface of the first guide 101 and the second guide 102 in contact with the end of the disk D as the point, and the disk D Rotation is converted into a linear motion so that the disk D is transferred above the turntable.

When the disk D is conveyed to the upper side of the turntable in this manner, the driving of the motor that has rotated the worm 111 is stopped, and the disk D is seated on the turntable. At this time, the disk D is lowered by about 1 mm when seated on the turntable so that rotation of the disk D, that is, reproduction of the disk D, is not prevented by the first guide 101 and the second guide 102. do.

In the loading process of the disc D, the first guide 101 and the second guide 102 rotate and rotate the disc D rotated by the loading roller 115 using a friction difference between the two. In addition to the conveying function of the disk D for moving the disk D to the upper side of the turntable, the disk D is straight so that the conveying path is not disturbed while the disk D is conveyed to the upper side of the turntable. The guide function of the moving disk D is also performed.

Subsequently, when the disk D is to be taken out, the motor is driven in reverse to rotate the worm 111 in the opposite direction. When the worm 111 is rotated in the opposite direction, the worm wheel 113 is rotated to move in the ejecting direction of the disc D, and the loading roller 115 is rotated and moved together with the worm wheel 113 to be the disc D. Move it. Thereafter, when the disk D is moved to the initial insertion state, the motor is stopped.

In the thin disk loading apparatus according to the present invention configured and operated as described above, a component disposed up and down in the loading means 110 for moving the disk D to the turntable in order to perform the loading operation of the disk D is provided. Since only the worm wheel 113 and the loading roller 115 are connected, only the fastening height of the worm wheel 113 and the loading roller 115 affects the height of the overall system, thereby greatly reducing the vertical space in the CD-ROM case. There is this.

In addition, the present invention is the motor, the worm 111, the rack 112 constituting the above-described loading means 110 by the movement direction of the worm wheel 113 and the loading roller 115 and the insertion direction of the disk (D) is the same. It is possible to arrange the integral structure of the disk in the direction of insertion of the disk (D), as well as the loading means 110 is installed in the inner diameter range of the disk (D), so the left and right space occupied by the loading means 110 is reduced There is an advantage that it is possible to reduce the left and right space in the cdrom case.

Therefore, the thin disk loading apparatus according to the present invention has the effect of enabling the CD-ROM drive mechanism for notebooks having a thickness of 12.7 mm and a 129 mm to be minimized since the CD-ROM case is thinned and minimized because the vertical height and the left-right width of the overall system are reduced as much as possible. There is.

In addition, the present invention reduces the vertical space and the left and right space occupied by the loading means 110 for loading the disk (D) in the cdrom case as described above, so that there is room in the top and bottom space and the left and right spaces in the cdrom case. There is an advantage that the arrangement of the turntable becomes easy.

In addition, in the thin disk loading apparatus according to the present invention, the direction of movement of the worm wheel 113 and the loading roller 115 coincides with the insertion direction of the disk D, so that the installation of the worm wheel 113 and the loading roller 115 is performed. Since the insertion amount of the disk D by the user can be freely adjusted according to the position, there is an advantage in that the handling of the disk D by the user is improved when the disk D is inserted and taken out.

That is, when the user inserts about 1/3 to 1/4 of the disk D, the disk D is bitten by the loading roller 115 and the motor is driven to set the disk D to move to the turntable. As a result, the user can handle less than 50% of the disk D during insertion and withdrawal of the disk D, so that the disk D can be easily handled and damage of the disk D can be prevented.

Claims (3)

First and second guides respectively formed on both sides of the CD-ROM case in contact with both ends of the disc and having different coefficients of friction, and when the disc is inserted into the CD-ROM case, the disc is rotated by rotating the disc. The thin disk loading device, characterized in that consisting of a loading means installed between the first guide and the second guide to be transferred to the upper side of the turntable by the friction difference therebetween. The method of claim 1, The loading means has a worm (Worm) one end is connected to the motor and installed in the CD-ROM case long in the insertion direction of the disk and rotated by the driving force of the motor, and the rack is installed in parallel with a predetermined distance from the worm, A worm wheel installed between the worm and the rack and rotated by a relative movement between the worm and a wheel, and a worm wheel coupled to contact the disk on an upper side of the worm wheel to rotate and move the disk while rotating with the worm wheel. Thin disk loading apparatus, characterized in that consisting of a loading roller. The method of claim 2, The loading roller of the thin disk, characterized in that the insertion groove is formed is inserted into the disk along the outer surface.