JP6293091B2 - Disk unit - Google Patents

Description

  The present invention relates to a disk device for reproducing or recording a disk.

Disk devices are mainly classified into a slot-in method and a tray method depending on the disk loading and unloading method.
Patent Document 1 describes a slot-in type disk device. In the slot-in method, when a disc is inserted to some extent from a disc insertion opening formed in the front panel, the disc is automatically fed to a position where the disc can be reproduced or recorded by the action of a feed roller or the like. . The slot-in type disk insertion slot has a cross-sectional shape extending toward the inside of the apparatus as disclosed in Patent Document 1, for example. Although not shown in Patent Document 1, conventionally, a disc guide may be provided at the front end of the disc insertion port via a sheet disc in which a disc is inserted. The disc is inserted smoothly at an appropriate angle. Further, a mechanism for playing back or recording a disk is provided in the chassis of the patent document 1 in a chassis. The assembly is usually performed with a gap between the front end of the disk insertion slot extending toward the inside of the apparatus and other components inside the apparatus such as a chassis. This is a gap necessary for designing the device in consideration of the tolerance of each component constituting the disk device. However, there is a possibility that dust may enter the mechanism responsible for reproducing or recording the disc through this gap.

  On the other hand, Patent Document 2 describes a tray type disk device. In the tray system, a placement unit on which a disc is placed slides relative to the apparatus main body. And in patent document 2, when a tray is drawn in, the edge side part of the opening part of an exterior casing and the peripheral part of the front-plate part of a tray are comprised so that it may overlap. As a result, dust resistance is increased without increasing the number of parts.

JP 2003-109275 A Japanese Utility Model Publication No. 5-73739

The configuration disclosed in Patent Document 2 is applicable only to a tray-type disk device on the assumption that the tray itself moves relative to the outer casing, and is a slot-in type disk device having no moving tray. It cannot be applied as a dustproof structure.
Therefore, conventionally, with respect to the gap generated between the slot-in type disk insertion slot and other parts inside the apparatus, the gap is filled by sandwiching a sheet of another part, for example, through this gap. Intrusion of dust was reduced.
However, in this configuration, it is necessary to newly add another part dedicated to reducing dust intrusion, such as a sheet that fills the gap.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a slot-in type disk device that can reduce the intrusion of dust without adding another part. To do.

  The disc device according to the present invention is of a slot-in type in which a disc is taken into the device when a disc is inserted from a disc insertion port formed in the panel, and the peripheral portion of the disc insertion port on the inside of the device A disk guide for reproducing or recording a disk, and a chassis formed with an opening leading to a disk insertion slot. The disk guide and the chassis form a labyrinth structure. It is characterized by combining.

  According to the present invention, in the slot-in type disk device, it is possible to reduce the intrusion of dust through the gap between the disk guide and the chassis without adding another part.

1 is an exploded perspective view of a disk device according to Embodiment 1 of the present invention. It is sectional drawing which expands and shows a part of disk apparatus based on Embodiment 1 of this invention. It is sectional drawing which expands and shows a part of disc device of the modification concerning Embodiment 1 of this invention. It is the perspective view and front view of a front chassis of the modification shown in FIG.

Embodiment 1 FIG.
FIG. 1 shows an exploded perspective view of a disk device 1 according to Embodiment 1 of the present invention. The disk device 1 controls the operation of a disk drive 2 having an optical pickup, a spindle motor and the like for reproducing or recording a disk and the operation of the disk drive 2 to read information on the disk, It has substrates 3a and 3b on which information is written. The disk drive 2 has an opening 2a into which a disk is inserted. The substrate 3a and the substrate 3b are connected to each other by a flexible cable 4, and are also connected to the disk drive 2 by wiring (not shown).

  Further, the disk device 1 includes a mechanical bracket 5 for attaching and fixing the disk drive 2 and the boards 3a and 3b, a front chassis 6, a rear chassis 7, and a bottom chassis 8. In particular, the front chassis 6 has an opening 6a into which the disk is inserted at a position facing the opening 2a of the disk drive 2 when the entire disk device 1 is assembled. A wall 6b rises from the peripheral edge of the opening 6a toward the front of the disk device 1. Further, the front chassis 6 has a surrounding wall 6c and has a box shape lacking one surface on the front side as a whole. When manufacturing the front chassis 6 with the opening part 6a by processing a sheet metal, the wall part 6b can be formed at the same time as forming the opening part 6a by cutting and bending the sheet metal. Alternatively, the wall 6b can be formed simultaneously when the front chassis 6 is manufactured by die casting, and the wall 6b is manufactured separately from the front chassis 6 having the opening 6a manufactured by an appropriate method. And you may attach to the peripheral part of the opening part 6a by welding. In the present invention, the front chassis 6 is also simply referred to as a chassis.

Further, the disk device 1 has a top cover 9 located on the uppermost surface of the device and a panel 10 located on the frontmost surface of the device. The panel 10 is formed with a disk insertion slot 10a into which a disk is inserted at a position facing the opening 6a of the front chassis 6 when the entire disk device 1 is assembled. The user inserts and removes the disc from the disc insertion opening 10a. The panel 10 has a surrounding wall 10b and has a box shape lacking one surface on the back side as a whole. The enclosure wall 10 b is combined with the enclosure wall 6 c of the front chassis 6.
The disk device 1 is a so-called slot-in type in which when a user inserts a disk from the disk insertion slot 10a, the disk is taken in by a feed roller (not shown) provided in the disk drive 2 and set at a predetermined position. Is.

FIG. 2 is an enlarged cross-sectional view of the vicinity of the opening 6a of the front chassis 6 and the disk insertion opening 10a of the panel 10. The components other than the disk drive 2, the front chassis 6, and the panel 10 are not illustrated as appropriate.
A disk guide 10e is provided at the peripheral edge of the disk insertion slot 10a of the panel 10 through a wall 10c that rises toward the inside of the disk device 1 and a sheet disk 10d that is disposed at the tip of the wall 10c.

The wall portion 10c, the sheet disc 10d, and the disc guide 10e are joined together by, for example, an adhesive material.
The sheet disk 10d is a sheet-like member made of, for example, a non-woven fabric, and is provided with a cut 10f along the longitudinal direction of the disk insertion port 10a.

The disc guide 10e is a substantially rectangular frame-like member, and is made of resin so as not to damage the disc. The disk guide 10e has a part of a cross-sectional shape in which the vertical width of the path of the disk narrows toward the inside of the disk device 1.
Due to the wall 10c of the panel 10 and the disk guide 10e, the vertical width of the path of the disk is continuously narrowed toward the inside of the disk device 1 with a certain inclination, and the user can move in the direction D in FIG. Easy to insert discs.
In the disk guide 10e, the inner surface of the disk device 1 is cut into a groove shape to form a recess 10g. In the assembled state as the disk device 1, the dimensions are such that the wall 6b of the front chassis 6 is inserted into the recess 10g.

  Dust enters the space S formed between the front chassis 6 and the panel 10. This dust is generated from a screw hole (not shown) for assembly formed in the top cover 9 located on the uppermost surface of the disk device 1 and a slight gap formed between each component of the disk device 1. Invade S. The gaps between the parts are caused by fitting tolerances of the parts. A state in which dust enters is indicated by a flow F in the figure.

The dust that has entered the space S subsequently tries to enter the disk drive 2. In particular, when the disk is rotating in the disk drive 2, dust can easily be sucked into the disk drive 2 because the rotation of the disk can cause air to flow into the disk drive 2.
However, as shown in FIG. 2, in the disc device 1, the disc guide 10 e is assembled with the wall portion 6 b of the front chassis 6 inserted in the recess 10 g of the disc guide 10 e, and the disc guide 10 e and the front chassis 6 form a labyrinth structure. Forming. With this labyrinth structure, the amount of dust in the space S entering the disk drive 2 can be reduced. Since the disk guide 10e and the front chassis 6 may be shaped so as to form a labyrinth structure when assembled, there is no need to newly add another part dedicated to reducing dust intrusion.

  Further, by adopting a labyrinth structure, a clearance of a degree necessary for design when taking into account tolerances of the components constituting the disk device 1 is secured to the disk drive 2 while ensuring a gap between the recess 10g and the wall 6b. The amount of dust entering can be reduced.

  In the description using FIGS. 1 and 2, the labyrinth structure is formed by the wall 6b and the recess 10g along the entire circumference of the opening 6a of the front chassis 6 and the disk insertion opening 10a of the panel 10. It was decided. By doing so, the effect of reducing dust intrusion into the disk drive 2 can be particularly enhanced. However, a labyrinth structure may be formed by the wall 6b and the recess 10g only along the longitudinal direction of the opening 6a of the front chassis 6 and the disk insertion slot 10a of the panel 10. That is, the wall 6b is formed only on the upper side and the lower side of the substantially rectangular opening 6a in FIG. Even in this case, since the labyrinth structure can be formed in almost the part around the opening 6a, the effect of reducing the intrusion of dust into the disk drive 2 is sufficiently high.

  In the above, the labyrinth structure is formed by inserting the wall portion 6b of the front chassis 6 into the recess 10g of the disk guide 10e. However, as shown in FIG. 3, the labyrinth structure is inserted by inserting the disk guide 10e into the front chassis 6. May be formed. In FIG. 3, a wall portion 10 h rises from the inner surface of the disk device 1 toward the disk device 1 along the longitudinal direction of the disk guide 10 e. The front chassis 6 is formed with slit-like openings 6d and 6e along the longitudinal direction of the opening 6a above and below the opening 6a. From the upper part of the peripheral part of the opening 6d, the wall part 6f rises toward the outside of the disk device 1, and from the lower part of the peripheral part of the opening 6e, the wall part 6g becomes the disk device 1. Standing up to the outside. FIG. 4 is a perspective view and a front view of the front chassis 6 in which openings 6d and 6e and walls 6f and 6g are formed. As shown in FIG. 4, in addition to the wall parts 6f and 6g, the wall part 6h which connects both is formed, and the perimeter of the opening part 6a is enclosed by the wall parts 6f, 6g and 6h.

  As shown in FIG. 3, the front chassis 6 is assembled with the openings 6d and 6e in a state where the wall 10h of the disk guide 10e is inserted, and the front chassis 6 and the disk guide 10e form a labyrinth structure. ing. Even in this case, the amount of dust in the space S entering the disk drive 2 can be reduced. Further, there is no need to add another part dedicated to reducing dust intrusion. Even if the wall portion 6h is not provided, the effect of reducing dust intrusion into the disk drive 2 can be sufficiently ensured, so that the wall portion 6h may be omitted if necessary.

  As described above, the disk device 1 according to the first embodiment includes the wall portion that is provided on one of the front chassis 6 and the disk guide 10e and extends along the disk insertion direction, and the opening. The amount of dust entering the disk drive 2 can be reduced by the labyrinth structure constituted by the concave portion provided on the other side. Further, at that time, the intrusion of dust can be reduced without adding a separate part dedicated to the reduction of dust intrusion.

  The labyrinth structure includes a wall 6b that rises from the peripheral edge of the opening 6a of the front chassis 6 toward the disc insertion slot 10a, and a recess 10g that is formed in the disc guide 10e and into which the wall 6b is inserted. I decided to do it. With this structure, a labyrinth structure with the front chassis 6 and the disk guide 10e can be realized relatively easily.

  Further, the labyrinth structure is formed along the longitudinal direction of the opening 6a or the disc insertion slot 10a. In this way, if the labyrinth structure is formed at least along the longitudinal direction, the effect of reducing dust intrusion to the disk drive 2 can be sufficiently obtained.

  Further, the labyrinth structure is formed along the entire circumference of the opening 6a or the disc insertion slot 10a. In this case, since the labyrinth structure is formed along the entire circumference, it is possible to obtain an effect of reducing dust intrusion into the high disk drive 2.

  In the present invention, any constituent element of the embodiment can be modified or any constituent element of the embodiment can be omitted within the scope of the invention.

  1 disk device, 2 disk drive, 2a opening, 3a, 3b substrate, 4 flexible cable, 5 mechanical bracket, 6 front chassis, 6a opening, 6b wall, 6c enclosure wall, 6d opening, 6e opening, 6f Wall, 6g wall, 6h wall, 7 rear chassis, 8 bottom chassis, 9 top cover, 10 panel, 10a disk insertion slot, 10b enclosure wall, 10c wall, 10d sheet disk, 10e disk guide, 10f notch, 10g recess, 10h wall.

Claims (4)

When a disc is inserted from a disc insertion opening formed in the panel, the disc device is a slot-in type that takes the disc into the device,
A disc guide provided at a peripheral portion on the inner side of the disc insertion slot;
A disk drive for reproducing or recording the disk, and a chassis formed with an opening leading to the disk insertion port;
The disk device according to claim 1, wherein the disk guide and the chassis are combined to form a labyrinth structure. The labyrinth structure is
A wall that rises from the peripheral edge of the opening of the chassis toward the disk insertion port;
The disk device according to claim 1, wherein the disk device is formed by a recess formed in the disk guide and into which the wall portion is inserted.   The disk device according to claim 1, wherein the labyrinth structure is formed along a longitudinal direction of the opening or the disk insertion slot.   4. The disk device according to claim 1, wherein the labyrinth structure is formed along the entire circumference of the opening or the disk insertion slot. 5.

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