JP5734214B2 - Foreign material removal tool for disc player - Google Patents

Description

  The present invention relates to a foreign matter removing tool for removing foreign matter in a disk reproducing apparatus.

  The conventional disk reproducing apparatus is configured such that the conveying roller rotates to convey the disk from the insertion port to the reproducing unit, and the conveying roller rotates in the reverse direction to convey the disk from the reproducing unit to the inserting port and discharge it. If a foreign object (card, coin, etc.) smaller than the disk enters the disk playback device, it will fall off the transport roller and cannot be ejected. Therefore, in the disk transport apparatus according to Patent Document 1, auxiliary transport means for transporting the foreign matter that has entered the apparatus to the transport roller is provided so that the foreign matter can be placed on the transport roller again and discharged.

JP 2007-207312 A

  Since the disk transport apparatus of Patent Document 1 is configured as described above, when the foreign matter is small, the disk cannot enter the position where the auxiliary transport unit does not reach or cannot reach the transport roller from the auxiliary transport unit. There was a possibility that it could not be discharged. For this reason, there has been a problem that a foreign matter inserted erroneously causes reproduction failure and operation failure.

  In particular, when a sticky round sheet that is part of a cushion holding the vicinity of the disk center hole of the disk case is inserted into the disk transport device in a state of being bonded to the center hole of the disk, a turntable is used during playback. This round sheet sometimes stuck to the center cone. If a foreign object is stuck on the turntable, there is a possibility that a normal disc cannot be clamped at a normal position and cannot be played back when a normal disc is inserted. Further, when the foreign matter is peeled off and dropped into the disk transport device, it may cause malfunction. However, in the conventional configuration as described in Patent Document 1, foreign matter stuck on the turntable cannot be taken out.

  The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a foreign matter removing tool for removing foreign matters on a turntable.

The foreign matter removing tool of the disc reproducing apparatus according to the present invention is composed of a flexible plate-like member that is inserted from the insertion slot and conveyed and ejected by the conveying roller in the same manner as the disc, and is turned in a state where the conveyance to the turntable is completed. A notch that intersects with the extension line of the center cone in the insertion direction of the foreign substance removal tool is made at a position on the back side of the chassis from the center cone of the table. A cutting edge portion to be peeled off and a bending portion in which the plate-like member is bent so that the cutting edge portion approaches the turntable side along a bending line parallel to the rotation axis of the transport roller.

  According to the present invention, the foreign matter removing tool is conveyed to the turntable side by the normal disc insertion operation of the disc reproducing apparatus, and when the bent portion reaches the conveying roller, the foreign matter removing tool is tilted and the cut edge approaches the turntable. During the discharging operation, the cut edge enters between the center cone of the turntable and the foreign matter and is peeled off, so that the peeled foreign matter can be discharged out of the apparatus together with the foreign matter removing tool. Therefore, foreign matter on the turntable can be removed.

The structure of the foreign material removal tool which concerns on Embodiment 1 of this invention is shown, Fig.1 (a) is a top view, FIG.1 (b) is sectional drawing cut | disconnected along the AA line. It is a side view which shows an example of the internal structure of a disc reproducing | regenerating apparatus. It is a side view which shows a state when the foreign material removal tool which concerns on Embodiment 1 is inserted in a disc reproducing | regenerating apparatus, and shows the state before a bending part passes a conveyance roller. It is a side view which shows a state when the foreign material removal tool which concerns on Embodiment 1 is inserted in the disc reproducing | regenerating apparatus, and shows the state after a bending part passed the conveyance roller. It is the figure which expanded the notch part periphery of the foreign material removal tool which concerns on Embodiment 1, and shows the state where the notch part reached | attained the turntable. It is the figure which expanded the notch part periphery of the foreign material removal tool which concerns on Embodiment 1, and shows the state which is discharging | emitting the foreign material removal tool. FIG. 7A is a plan view, and FIG. 7B is an enlarged cross-sectional view cut along the line A′-A ′. It is a top view which shows another modification of the foreign material removal tool which concerns on Embodiment 1. FIG. It is a top view which shows another modification of the foreign material removal tool and disc reproducing | regenerating apparatus concerning Embodiment 1. FIG. It is a top view which shows another modification of the foreign material removal tool which concerns on Embodiment 1. FIG. FIG. 11A is a plan view, and FIG. 11B is a cross-sectional view taken along the line A ″ -A ″, showing the configuration of the foreign matter removing tool according to Embodiment 2 of the present invention. It is a figure which shows the state seen from the insertion port side when the foreign material removal tool which concerns on Embodiment 2 is inserted in the disc reproducing | regenerating apparatus.

Embodiment 1 FIG.
As shown in FIG. 1, the foreign material removal tool 1 is made of a plate-like member made of a flexible material, and a bent portion 3 is formed by bending the middle. Further, a U-shaped cut portion 2 is formed at a predetermined position between the tip side formed in an arc shape and the bent portion 3 to provide a cut piece 2a, and an edge facing the tip side of the cut piece 2a Is the cut edge 2b.
As the plate member made of a flexible material, polystyrene, polycarbonate, or the like may be used. The shape of the arc is substantially the same as the arc shape of CD (Compact Disc) and DVD (Digital Versatile Disc).

  FIG. 2 is a side view showing an example of a conventional disk reproducing device 10, and shows the internal structure by cutting the chassis 11. An insertion port 12 for inserting and removing a disk 20 such as a CD and a DVD is formed in the chassis 11. In addition, a transport roller 13 is rotatably held inside the chassis 11, and the transport roller 13 rotates to place the disk 20 inserted from the insertion port 12 and transport it to the reproducing unit 15. In addition to the turntable 16 that rotates the disk 20, the reproducing unit 15 includes a clamper (not shown) that holds the disk 20 on the turntable 16, an optical pickup that performs information reproduction and information recording on the disk 20, and the like.

When the disk 20 is inserted, the disk guide component 14 provided on the inner side of the top surface of the chassis 11 guides the disk 20 so as to be sandwiched between the conveyance roller 13. When the disk 20 is conveyed to the reproduction position, the conveyance roller 13 is moved to the lower reproduction unit 15 side (the position of the conveyance roller 13 indicated by a two-dot chain line in FIG. 2) by a drive mechanism (not shown). The center hole of the disk 20 fits into the center cone 16a of the turntable 16 as indicated by the dotted line.
When the disc 20 is ejected, the conveying roller 13 is placed on the disc 20 by the driving mechanism (not shown) and moved to the upper disc guide component 14 side, and the conveying roller 13 rotates reversely to insert the disc 20 from the reproducing unit 15. It is conveyed to the mouth 12 and discharged.

As described above, when the disc 20 is inserted into the disc reproducing apparatus 10 with a foreign substance 21 such as a round seal that closes the center hole, the foreign matter 21 is placed on the center cone 16a. May stick.
When the foreign material 21 and the center hole of the disk 20 are substantially the same size, the foreign material 21 passes through the center hole when the disk 20 moves upward by the ejecting operation, and the foreign material 21 remains stuck to the center cone 16a. It may remain. Then, the foreign matter 21 may cause a reproduction failure and an operation failure of the disk reproducing apparatus 10.
Therefore, the foreign matter 21 is removed using the foreign matter removing tool 1. The foreign substance removing tool 1 is inserted into the insertion port 12 from the arcuate tip side.

  FIG. 3 and FIG. 4 are side views showing a state when the foreign matter removing tool 1 is inserted into the disc reproducing apparatus 10. The foreign substance removing tool 1 inserted from the insertion port 12 is conveyed along the same locus as when the normal disk 20 is inserted until the bending portion 3 reaches the conveying roller 13. Since the foreign matter removing tool 1 is nipped and conveyed from the upper surface to the disk guide component 14 and from the lower surface to the conveying roller 13, the arcuate tip side passes above the reproducing unit 15 and proceeds to the inner side of the chassis 11.

  When the bending portion 3 passes the conveying roller 13, the rear portion of the bending portion 3 is sandwiched between the conveying roller 13 and the disc guide component 14, so that the posture of the foreign matter removing tool 1 is changed, as shown by an arrow B in FIG. The front portion of the bent portion 3 approaches the reproducing portion 15 and comes into contact with the turntable 16. When the foreign matter removing tool 1 reaches the back side of the chassis 11 and the transport operation is completed, the front portion of the bent portion 3 is pressed against the turntable 16 by the deflection of the foreign matter removing tool 1. .

FIG. 5 shows an enlarged view around the notch 2 in this state. FIG. 6 shows an enlarged view of the periphery of the cut portion 2 at the start of the discharging operation. 5 and 6, the foreign matter removing tool 1 is shown in a cross section cut along the line AA in FIG. 1. The chassis 11 and the like are not shown.
When the conveying operation of the foreign matter removing tool 1 is completed, the foreign matter removing tool 1 is bent and the tip side is pressed against the reproducing unit 15, while the cut piece 2a is placed on the foreign matter 21 stuck on the center cone 16a. It becomes a state. Accordingly, as shown in FIG. 5, a gap is opened between the cut piece 2a and the cut edge 2b.

As shown in FIGS. 4 to 6, the cut portion 2 is formed in a U-shape at a position surrounding the center cone 16 a of the turntable 16 when the transport operation is completed. The cut piece 2a is formed in the cut portion 2 at a position facing the center cone 16a of the turntable 16 when the conveying operation is completed. Center also cut edges 2b, of the cut section 2, score lines edge der position to become the inner side of the chassis 11 from the center cone 16a is, the cut line, in the direction of insertion of the foreign substance remover 1 It intersects the extended line of the cone 16a.

  From the state shown in FIG. 5, the conveying roller 13 conveys the foreign material removing tool 1 in the discharging direction (the direction of arrow C in FIG. 6) and discharges it from the insertion port 12 by a normal disk discharging operation. Then, as shown in FIG. 6, the end of the foreign material 21 enters the open gap, and the cut edge 2b enters between the foreign material 21 and the center cone 16a. When the foreign matter removing tool 1 further advances in the discharging direction, the cutting edge 2b peels off the foreign material 21 from the center cone 16a, the open gap is closed, and the foreign material 21 is held between the cutting piece 2a and the cutting edge 2b. Accordingly, the foreign matter 21 is discharged from the disc reproducing apparatus 10 together with the foreign matter removing tool 1 while being sandwiched between the cut piece 2a and the cut edge portion 2b.

  As described above, according to the first embodiment, the foreign object removing tool 1 is inserted through the insertion port 12 of the disk reproducing device 10 and is transported and discharged by the transport roller 13 in the same manner as the disk 20. The U-shaped notch 2 formed at a position facing the center cone 16a in a state where the conveyance to the turntable 16 is completed, and enters the space between the center cone 16a and the foreign material 21 in the discharging process. A notch edge 2b to be peeled off from the center cone 16a, a notch piece 2a that is surrounded by the notch 2 and sandwiches the foreign substance 21 by the notch edge 2b, and a fold line parallel to the rotation axis of the conveying roller 13 And the bent portion 3 is formed by bending the plate-like member so that the cut edge portion 2b approaches the turntable 16 side. For this reason, when the bending portion 3 reaches the conveying roller 13 during the normal disk insertion operation, the foreign matter removing tool 1 is inclined and the cut portion 2 approaches the turntable 16, and the cut edge portion 2b is connected to the center cone 16a during the discharge operation. The foreign matter 21 can be inserted into and peeled off from the foreign matter 21, and the foreign matter 21 can be sandwiched between the cut piece 2 a and the cut edge 2 b and discharged together with the foreign matter removing tool 1.

In addition, the shape of the cut | notch part 2 is not limited to U shape, You may comprise in arbitrary shapes, such as V shape and a semicircle shape.
Further, as in the modified example of the foreign matter removing tool 1 shown in FIGS. 7A and 7B, the tip of the cut piece 2a is extended (or a separate cut piece 2a is attached), and the cut piece 2a is attached. The front end of the cover may cover the cut edge 2b. In the case of this configuration, the foreign material 21 can be clamped more reliably.
Further, the cut edge 2b may be tapered as shown in FIG. 7B so that it can easily enter between the foreign material 21 and the center cone 16a. In addition to FIG. 7 (b), for example, the notch 2 may be cut obliquely so that the notch piece 2a and the notch edge 2b are tapered.

  Alternatively, instead of forming the cut piece 2a inside the cut portion 2, a simple opening may be formed as in the modified example of the foreign matter removing tool 1 shown in FIG. In the case of this configuration, when the foreign object removing tool 1 is conveyed to the turntable 16 side by the normal disk insertion operation of the disk reproducing apparatus 10 and the bending part 3 reaches the conveying roller 13, the foreign object removing tool 1 is tilted and the cut edge portion is formed. 2b approaches the turntable 16, and the cutting edge 2b enters between the center cone 16a and the foreign material 21 and peels off during the discharging operation. At this time, the foreign matter 21 sticks to the cut edge 2b due to the adhesive force of the foreign matter 21, so that it can be discharged out of the apparatus together with the foreign matter removing tool 1.

In the example of FIGS. 1 to 8, the insertion side of the foreign object removal tool 1 is formed in the same substantially arc shape as the disk 20 so that the foreign object removal tool 1 can be used regardless of the structure of the disk reproducing apparatus 10. Although general versatility was improved, it is not limited to the arc shape, and can be modified in accordance with the structure of the disc reproducing apparatus 10. Hereinafter, modified examples will be described.
FIG. 9 is a plan view showing a modified example of the disk reproducing device 10 and the foreign matter removing tool 1. In FIG. 9, the chassis 11 is not shown. A pair of insertion detection levers 17 for detecting the insertion of the disk 20 are provided on the insertion port 12 side of the reproduction unit 15. These insertion detection levers 17 are attached so as to be rotatable about a shaft 17a, and are opened in the left-right direction of the arrow D along the arcuate edge of the disk 20 so that the disk 20 can be inserted.
In the case of this structure, with the tip-arc-shaped foreign matter removing tool 1 shown in FIG. 1, the pair of insertion detection levers 17 can be expanded and inserted in the same manner as the disk 20.
Moreover, you may form the convex part 4 narrower than the width | variety of a pair of insertion detection lever 17 in a circular arc part like the foreign material removal tool 1 shown in FIG. Even if the convex portion 4 is present, the insertion detection lever 17 can be pushed and expanded at the arc portions at both ends thereof.

  Moreover, when the stopper 18 which stops conveyance of the disk 20 is protrudingly provided in the back | inner side of the reproduction | regeneration part 15 like the disk reproduction apparatus 10 shown in FIG. 9, the foreign material removal tool 1 shown in FIG. 1 and FIG. Thus, if the tip side has substantially the same arc shape as the disk 20, the arc portion can contact the stopper 18. Therefore, even if the foreign matter removing tool 1 is inserted, the disc reproducing apparatus 10 can perform a normal disc inserting operation.

Further, for the disk reproducing apparatus 10 having no insertion detection lever 17 and having a stopper 18, as shown in FIG. One corner may be left asymmetric and formed asymmetrical. In the case of this configuration, the disc playback apparatus 10 can be made to perform a normal disc insertion operation.
Further, if there are no obstacles such as the insertion detection lever 17 and the stopper 18, the both corners on the distal end side of the foreign substance removal tool 1 may be left as they are and may be rectangular (not shown).

  Further, for the disc reproducing apparatus 10 having a structure that detects the disc 20 using an optical sensor instead of the insertion detection lever 17 and the stopper 18, a light-shielding plate member (for example, a black plate member) is used as a foreign object. What is necessary is just to comprise the removal tool 1. FIG. Thereby, the foreign material removal tool 1 can block the light of the optical sensor, and the disk reproducing apparatus 10 can perform a normal disk insertion operation.

Embodiment 2. FIG.
FIG. 11A is a plan view showing the configuration of the foreign matter removing tool 1 according to Embodiment 2 of the present invention, and FIG. 11B is a cross-sectional view taken along the line A ″ -A ″. It is.
In the foreign substance removing tool 1 according to the second embodiment, one side on the tip side formed in an arc shape is an adhesive portion 5. A foreign substance 22 on the back side of the disc reproducing apparatus 10 shown in FIG. 2 is adhered to the adhesive portion 5 and discharged out of the disc reproducing apparatus 10.

FIG. 12 is a view showing a state in which the foreign matter removing tool 1 is viewed from the insertion port 12 side when inserted into the disc reproducing apparatus 10. This foreign matter removing tool 1 shows a cross section cut at the position of line EE shown in FIG. In FIG. 12, the chassis 11 and the like are not shown. The foreign substance removing tool 1 inserted from the insertion port 12 is placed on the conveyance roller 13 and conveyed to the reproducing unit 15. Since the conveyance roller 13 has a tapered shape 13b that increases in diameter from the center of the shaft 13a toward both ends, the foreign matter removing tool 1 and the conveyance roller 13 are in contact with each other at the edge. Therefore, the adhesive portion 5 is transported to the inside of the chassis 11 without being attached to the transport roller 13.
Although the area for adhering the foreign material 22 is reduced, the adhesive portion 5 can be made slightly smaller than the foreign material removal tool 1 to prevent sticking by bringing the foreign material removal tool 1 and the transport roller 13 into edge contact. Good.

  The foreign matter removing tool 1 according to the second embodiment is inserted from the insertion port 12 in the same manner as in the first embodiment, and the same trajectory as when a normal disk 20 is inserted until the bending portion 3 reaches the conveying roller 13. It is conveyed by. Since the foreign matter removing tool 1 is nipped and conveyed from the upper surface to the disk guide component 14 and from the lower surface to the conveying roller 13, the adhesive unit 5 advances to the back side of the chassis 11 without contacting the reproducing unit 15.

When the bending portion 3 passes the conveying roller 13, the rear portion of the bending portion 3 is sandwiched between the conveying roller 13 and the disc guide component 14, so that the posture of the foreign matter removing tool 1 is changed, as shown by an arrow B in FIG. Further, the front portion of the bent portion 3 approaches the reproducing portion 15, and the adhesive portion 5 at the tip is pressed against the foreign matter 22 on the surface of the reproducing portion 15 to be bonded. Moreover, since the foreign material removal tool 1 bends, the contact area of the adhesion part 5 and the foreign material 22 increases, and it becomes easy to adhere | attach. It should be noted that the distance from the bending portion 3 to the adhesive portion 5 is changed from the conveying roller 13 to the turntable 16 and the optical pickup 19 (FIG. 9) so as not to adhere to parts such as the turntable 16 and the optical pickup 19 when the posture of the foreign substance removing tool 1 is changed. It is desirable that the distance is longer than the longer distance of the distance to the table 16 or the distance from the transport roller 13 to the optical pickup 19. As a result, at the position where the adhesive portion 5 has passed the turntable 16 and the optical pickup 19, the bending portion 3 is placed on the transport roller 13 and the posture is changed, so that the adhesive portion 5 contacts the surface of the reproducing portion 15. Become.
Thereafter, the conveyance roller 13 conveys the foreign matter removing tool 1 and the foreign matter 22 together and ejects them from the insertion port 12 by a normal disc ejection operation.

  As described above, according to the second embodiment, the foreign matter removing tool 1 has the foreign matter 22 in the chassis 11 provided on the surface of the plate-like member that is inserted into the insertion port 12 and in contact with the conveyance roller 13. It was comprised so that the adhesion part 5 which adhere | attaches may be provided. For this reason, not only the foreign substance 21 stuck on the center cone 16a but also the foreign substance 22 in the back of the chassis 11 can be removed by the normal disk transport operation and ejection operation of the disk reproducing apparatus 10.

  It should be noted that the present invention can be freely combined with each other within the scope of the invention, and each embodiment can be appropriately modified or omitted.

  DESCRIPTION OF SYMBOLS 1 Foreign material removal tool, 2 cutting part, 2a cutting piece, 2b cutting edge part, 3 bending part, 4 convex part, 5 adhesion part, 10 disc reproducing | regenerating apparatus, 11 chassis, 12 insertion port, 13 conveyance roller, 13a axis | shaft, 13b Tapered shape, 14 disc guide parts, 15 playback section, 16 turntable, 16a center cone, 17 insertion detection lever, 17a shaft, 18 stopper, 19 optical pickup, 20 disc, 21, 22 foreign matter.

Claims (5)

Disc a disc inserted from the chassis of the insertion opening, for discharging from the pre Symbol reproducing unit to the insertion port on the co if transported to the turntable of the playback unit by the rotation of the conveying rollers having a recording surface parallel to the axis of rotation of the disc A foreign matter removing tool for a playback device,
The foreign matter removing tool is:
Like the disk, it consists of a flexible plate-like member that is inserted from the insertion port and conveyed and discharged by the conveying roller,
In a state where the transfer to the turntable is completed, a cut is made in the insertion direction of the foreign substance removal tool at a position on the rear side of the chassis from the center cone of the turntable. A notch edge that enters between the center cone and the foreign matter and peels the foreign matter away from the center cone;
A foreign object for a disk reproducing apparatus, comprising: a bent portion formed by bending the plate-like member so that the cut edge portion approaches the turntable side along a bend line parallel to a rotation axis of the transport roller. Remover. The foreign substance removal tool is a position opposed to said center cone transport completion state to the turntable, said center comprising brewed a cut piece cut in a range surrounding the cone, the cut edge with the cut piece in the discharge process The foreign matter removing tool according to claim 1, wherein the foreign matter is sandwiched by a portion. The foreign substance removal tool is foreign matter removing device according to claim 2, wherein a distal end portion of the cut piece is shaped to cover the cut edge. The foreign matter removing tool according to any one of claims 1 to 3, wherein the cutting edge portion has a tapered shape. The foreign substance removal tool is claimed claim 1, characterized in that it comprises an adhesive portion which adheres provided on the surface in contact with the conveying roller an insertion side of said plate-like member, the foreign matter in the chassis Item 5. The foreign matter removing tool according to any one of Items 4 to 6.

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