KR101078763B1 - Cover plate and disk apparatus with the same - Google Patents

Abstract

The present invention relates to a disk device, and more particularly to a cover plate applicable to the disk device and a disk device having the same. According to the present invention, it is possible to prevent scratches of the disk due to friction between the cover plate and the disk when the disk is inserted into or taken out of the disk device through the disk insertion hole.

Description

Cover plate and disk apparatus with the same {Cover plate and disk apparatus with the same}

The present invention relates to a disk device, and more particularly to a cover plate of the disk device and a disk device having the same.

Among the information storage media, optical discs (hereinafter referred to as discs) are rapidly increasing information storage capacity due to the development of related technologies, and their prices are relatively inexpensive and thus are widely used. Disks are classified into compact disks (CDs) and digital versatile disks (DVDs) according to information storage capacity. Discs that can be recorded, erased, and played back include 650MB CD-R, CD-RW, 4.7GB DVD-R, DVD + R, DVD-RW, and DVD + RW. Furthermore, HD-DVD and Blu-ray discs with recording capacity of 20GB or more are being developed.

A device for reproducing information recorded on a disk or recording information on a disk is called a disk device. The disk device may include a tray-type disk device for seating and loading a disk in a cassette or a tray, and a disk may be inserted and loaded through a narrow disk insertion hole, that is, a slot, formed on the front surface of the disk. A so-called slot-in type disk device capable of extracting the disk through the disk insertion port is included.

When the disc is inserted through the disc insertion slot of the slot-in-type disc device or when the disc is ejected to the outside through the disc insertion hole, the upper surface of the disc is rubbed against the inner surface of the cover plate of the disc device, causing scratches. It may become. Such a scratch of a disk may deteriorate the appearance of the disk, and particularly in the case of a disk capable of recording information on both sides, there is a high possibility of losing information.

The present invention provides a cover plate of a disk device for preventing scratches on the upper surface of the disk, and a disk device having the same.

The present invention includes a chucking auxiliary protrusion for assisting the chucking of the disk of the turntable such that the disk inserted therein through the disk insertion hole in the front of the disk device is chucked to the turntable; And a scratch prevention layer around the chucking auxiliary protrusion to prevent scratching of the disk due to friction.

According to one embodiment of the invention, the scratch prevention layer may be made of a material that does not generate a scratch when friction with the disk.

According to one embodiment of the present invention, the scratch prevention layer is attached to the inner surface of the cover plate, the inner surface of the cover plate overlapping with the scratch protection layer at least one portion so that at least a portion of the scratch prevention layer protrudes toward the turntable side Protuberances may be formed.

According to one embodiment of the invention, the at least one protrusion may be formed by pressing the cover plate.

According to an embodiment of the present invention, the scratch prevention layer may be disposed in a region close to the disk insertion hole among regions that contact the outer circumference of the chucking auxiliary protrusion.

According to an embodiment of the present invention, the scratch prevention layer may have a curved band portion having a curved shape.

According to one embodiment of the invention, the at least one protrusion may comprise a pair of terminal protrusions closer to both ends than the middle of the curved strip portion.

According to an embodiment of the present invention, the at least one protrusion may include at least one intermediate protrusion closer to the middle than both ends of the curved strip portion.

According to an embodiment of the present invention, the cover plate further includes a guide protrusion protruding downward adjacent to the outer circumference of the curved strip portion, wherein the guide protrusion protrudes inclined downward toward a distance from the disc insertion hole. Can be.

According to an embodiment of the present invention, the scratch prevention layer further includes a guide portion extending from the outer circumference of the curved strip toward the disc insertion hole, the guide portion being guided stepped in the inner side of the cover plate It can be attached to the receiver.

According to the embodiment of the present invention, when the disc is inserted into or taken out of the disc device through the disc insertion hole, scratches of the disc due to friction between the cover plate and the disc can be prevented.

Hereinafter, a cover plate according to an exemplary embodiment of the present invention and a disk device having the same will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view showing a disk device according to an embodiment of the present invention. Referring to FIG. 1, the disk device 100 is a slot-in disk device. The disk device 100 includes a base 101 and a cover plate 130 coupled to the base 101. The bezel 105 of the front surface of the disk apparatus 100 is provided with a disk insertion opening 107, i.e., a slot and an eject button 109, which is a passage through which the disk D is inserted or discharged. When the eject button 109 is pressed, the disk that has been loaded in the disk apparatus 100 is unloaded and discharged through the disk insertion hole 107.

The disk apparatus 100 includes a main unit 110, a loading lever 121, and an eject lever 123 in an inner space of the base 101. The main unit 110 writes data to the disk D by irradiating light onto the turn table 115 and the disk D, which are rotated at high speed by chucking the disk D, or the disk ( An optical pickup 112 for reproducing the data recorded in D), and a feeding motor (not shown) for moving the optical pickup 112 in the radial direction of the disc.

The loading lever 121 presses the disk D so that the center of the disk D inserted through the disk insertion hole 107 enters the turntable 115. The eject lever 123 is escaped to the rear side of the optical disk apparatus 100 so that loading of the disk D is not hindered when the disk D is inserted through the disk insertion hole 107. Pressing the button 109 presses the disk D to be discharged through the disk insertion hole 107.

2 is a plan view illustrating an inner side surface of the cover plate of FIG. 1, FIG. 3 is a cross-sectional view taken along the line A-A of FIG. 2, and FIG. 4 is a cross-sectional view taken along the line B-B of FIG. 2.

1 to 4, the cover plate 130 includes an opening 131 at the center portion and a chucking auxiliary protrusion 135 formed in a ring shape at a periphery thereof. The chucking auxiliary protrusion 135 protrudes downward toward the turntable 115. When the disk D is inserted through the disk insertion hole 107 so that the opening in the center of the disk D is located on the turntable 115, the turntable 115 is raised to lift the disk D and the disk D is chucked. The disk D is chucked to the turntable 115 by being blocked by the auxiliary protrusion 135 and being pressed toward the turntable 115. After chucking of the disk D, the turntable 115 is lowered slightly so that the chucking auxiliary protrusion 135 and the disk D are spaced apart and start rotating the disk D. FIG.

The cover plate 130 includes a scratch prevention layer 140 around the chucking auxiliary protrusion 135. The scratch prevention layer 140 is the inner surface 132 of the cover plate 130 in the process of inserting and chucking the disk (D) through the disk insertion hole 107, or the process of ejecting the disk (D) through the disk insertion hole 107. ) And the scratch of the disk D due to the friction between the upper surface of the disk D and the disk D. The scratch prevention layer 140 may be formed of a felt and attached to the inner side surface 132 of the cover plate 130. The Z-axis separation distance between the surface of the scratch prevention layer 140 and the turntable 115 may be equal to or slightly smaller than the separation distance between the surface of the chucking auxiliary protrusion 135 and the turntable 115.

The chucking auxiliary protrusion by a virtual straight line L1 that crosses the center of the ring-shaped chucking auxiliary protrusion 135 and extends in a direction orthogonal to the insertion / ejection direction of the disc (ie, the x-axis direction of FIG. 2). 135 can be divided into two semicircular rings. The scratch prevention layer 140 is disposed in a region around the semicircular ring 137 close to the disk insertion hole 107. The scratch prevention layer 140 has a curved strip portion 141 extending in a curved line.

The cover plate inner surface 132 overlapping the scratch prevention layer 140 is provided with four protrusions 151 to 154 protruding toward the turntable 115. The four protrusions 151 to 154 may be formed by pressing the cover plate 130. The opening 131 and the chucking auxiliary protrusion 135 may also be formed by pressing the cover plate 130.

The scratch prevention layer 140 of the region where the protrusions 151 to 154 are formed protrudes more toward the turntable 115 than the scratch prevention layer 140 of the region where the protrusions 151 to 154 are not formed. By forming protrusions on the friction part between the disk D and the cover plate inner surface 132 to further protrude the scratch prevention layer 140, it is possible to more effectively prevent scratches due to friction.

The four protrusions include a pair of distal protrusions 151 and 152 and a pair of intermediate protrusions 153 and 154. The pair of distal protrusions are first and second distal protrusions 151, 152 closer to the first and second distal ends 143, 144 than the middle 145 of the curved strip portion 141. The pair of intermediate protrusions are first and second intermediate protrusions 153 and 154 closer to the middle 145 than the first and second ends 143 and 144 of the curved strip portion 141.

The cover plate 130 further includes a guide protrusion 160 protruding downwardly adjacent to an outer circumference of the curved band portion 141 of the scratch prevention layer 140. The guide protrusion 160 protrudes inclined to face downward as it moves away from the disc insertion hole 107. The guide protrusion 160 may be formed by pressing the cover plate 130. Without the guide protrusion 160, the outer circumferential end of the disk D entering the inside through the disk insertion hole 107 pushes the outer circumference 147 of the scratch prevention layer 140, so that the scratch prevention layer 140 has an inner surface 132. Bar can be separated, the guide protrusion 160 prevents this problem.

5 is an enlarged plan view illustrating an inner side surface of a cover plate according to another exemplary embodiment of the present invention. The cover plate 230 disclosed in FIG. 5 may replace the cover plate 130 provided in the disk device 100 of FIG. 1.

Referring to FIG. 5, the cover plate 230, like the cover plate 130 shown in FIGS. 1 to 4, has an opening 231 in the center portion, and a chucking auxiliary protrusion 235 formed in a ring shape at the periphery thereof. The scratch prevention layer 240 is provided around the chucking auxiliary protrusion 235. The scratch prevention layer 240 may be formed of a felt and attached to the inner side surface 232 of the cover plate 230.

The scratch prevention layer 240 has a curved stripe portion 241 extending in a curved shape and a guide portion 249 extending from the outer circumference of the curved stripe portion 241 toward the disc insertion hole 107 (see FIG. 1). do. The cover plate inner surface 232 overlapping the curved strip 241 is provided with four protrusions 251 to 254 protruding toward the turntable 115 (see FIG. 1). The four protrusions have first and second end protrusions 251 and 252 closer to the first and second ends 243 and 244 than the middle 245 of the curved band portion 241, and the curved band portion. First and second intermediate protrusions 253, 254 closer to the middle 245 than the first and second ends 243, 244 of 241.

The guide portion 249 is attached to the guide receiving portion 265 recessed stepwise from the cover plate inner surface 232. Specifically, the guide receiving portion 265 forms an opening 267 in an area of the cover plate 230 overlapping the guide portion 249 and the adhesive tape 270 on the outer surface of the cover plate 230. It can be formed by closing the opening 267. The guide portion 249 is attached to a portion of the adhesive tape 270 closing the opening 267. Since the guide portion 249 is formed integrally with the curved band portion 241 and the guide portion 249 is inclined due to the guide receiving portion 265, the guide portion 249 enters through the disk insertion hole 107 (see FIG. 1). Separation of the scratch prevention layer 240 by the outer peripheral end of the disk (D, see FIG. 1) can be prevented.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. For example, although only a slot-in disk device is disclosed in the drawing, the present invention can be applied to other types of disk devices, such as a tray-type disk device. Therefore, the true scope of protection of the present invention should be defined only by the appended claims.

1 is an exploded perspective view showing a disk device according to an embodiment of the present invention.

FIG. 2 is a plan view illustrating an inner surface of the cover plate of FIG. 1.

3 is a cross-sectional view taken along line AA of FIG. 2.

4 is a cross-sectional view taken along line B-B of FIG. 2.

5 is an enlarged plan view illustrating an inner side surface of a cover plate according to another exemplary embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

100 ... Disk Unit 101 ... Base

110 ... the main unit 115 ... the turntable

130 ... Cover plate 135 ... Chucking auxiliary protrusion

140 ... anti-scratch layer 151, 152 ...

153, 154 ... Mid protrusion 160 ... Guide protrusion

Claims (11)

In the cover plate of the disk apparatus of the method disc which is a slot which can take out said disc through the disc insertion hole provided in the front by playing back the information recorded on the disc, or recording the information on the said disc, A chucking auxiliary protrusion to assist chucking of the disk of the turntable such that the disk inserted into the disk through the disk insertion hole is chucked to the turntable; And And a scratch prevention layer provided around the chucking auxiliary protrusion to prevent scratching of the disk due to friction with an inner surface of the cover plate, and having a curved band portion having a curved shape. The scratch prevention layer is attached to an area close to the disk insertion hole in an area of the inner surface of the cover plate that is in contact with the outer circumference of the chucking auxiliary protrusion. At least one protrusion is formed on an inner surface of the cover plate overlapping the scratch prevention layer such that at least a portion of the scratch prevention layer protrudes toward the turntable side, and The cover plate further includes a guide protrusion protruding downwardly adjacent to the outer circumference of the curved strip portion, wherein the guide protrusion protrudes inclined downward toward a distance from the disc insertion hole. delete delete The method of claim 1, The at least one projection is a cover plate, characterized in that formed by pressing the cover plate. delete delete The method of claim 1, And the at least one protrusion comprises a pair of end protrusions closer to both ends than the middle of the curved strip portion. The method of claim 7, wherein And the at least one protrusion comprises at least one intermediate protrusion closer to the middle than both ends of the curved strip portion. delete The method of claim 1, The scratch prevention layer further comprises a guide portion extending from the outer circumference of the curved strip toward the disc insertion hole, wherein the guide portion is attached to the guide receiving portion recessed stepped from the inner side of the cover plate Cover plate. Base; A turntable rotatably installed on the base to chuck and rotate the disk mounted on the base; A disk insertion hole formed in the front surface of the base to allow the disk to enter and exit the base; And It is coupled to the upper side of the base to form a space in which the disk can enter and exit between the base, wherein any one of claims 1, 4, 7, 8, 10 Disk device provided with a cover plate.

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