JP2006351078A - Disk loading device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk loading device preventing interference with a flap even when a so-called surface shake disk is reproduced, with simple constitution. <P>SOLUTION: Removed parts (a), (b) are formed on the lower surface side (disk side) near right and left edges of the flap 1. A chamfer part (c) is provided adjacent to the flap center side of the removed part (a). Ribs (d), (e) extending in the longitudinal direction (right and left directions) of the flap 1 are removed, adjacent to the flap center side of the chamfer part (c) and the removed part (b), respectively. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to a disk loading apparatus that holds a disk such as a CD or a DVD and places the disk on a turntable.

Conventionally, as a disc player for recording or reproducing such a disc, for example, by inserting the disc from a disc insertion opening provided on the outer surface of the case, the disc is automatically carried into a predetermined position. A disc player having a so-called slot-in model disc loading device is known.

In such a disc player, the disc loaded into the insertion slot is moved to a predetermined position on the turntable by the disc loading device, and the disc is fixed and held on the turntable by a clamper. . Then, the disk is rotated by rotationally driving the turntable, and a signal is written to or read from the recording surface of the rotating disk by a pickup.

3A and 3B are views showing a flap provided at an insertion port of a conventional disk loading device, where FIG. 3A is a bottom view and FIG. 3B is a plan view. The front view is not shown. As shown in the figure, the flap 1 has a substantially long plate shape that is long in the left-right direction, and can be rotated back and forth like a seesaw around rotation shafts 1a, 1b protruding from the left and right side surfaces. is there. A columnar 1c extending downward from the left end of the lower surface is a lever for driving the flap 1 to rotate by a drive mechanism (not shown).

FIG. 4 is an enlarged view of a main part of the flap, and is a left side view of the tip part. As shown in the figure, in this example, the disc 2 is sandwiched between the upper and lower surfaces by a flap 1 and a roller 3 and conveyed. Specifically, first, when the disc 2 is inserted from the insertion port (not shown) on the right side of the drawing, the leading end 1d of the flap 1 is pushed up, and the leading end 1d.
And the disk 2 is sandwiched between the roller 3 provided on the lower side thereof. In this state, when the roller 3 is rotated in the direction of the arrow by a drive mechanism (not shown), the disc 2 is pulled into the disc player (the left side in the figure) by the frictional force.

FIG. 5 is a diagram showing a state when the disc loading operation is completed, and a schematic configuration inside the disc player is shown in a plan view. As shown in the figure, in the disc player of this example, the flap 1 is attached to the front portion of the chassis 4 and the turntable 5 is arranged near the center. In the figure, the flap 1 is depicted in a transparent state.

In the figure, when a large-diameter disk 2 having a diameter of 12 cm is inserted from an insertion port 4a formed in the front portion of the chassis 4, a front end portion 1d on the inside of the chassis 4 of the flap 1 and a lower side thereof are provided. As shown in FIG. 4, the disk 2 is sandwiched between the roller 3 (not shown), and when the roller 3 rotates in this state, the disk 2 is drawn into the chassis 4.

Finally, as shown in the figure, the center hole of the disk 2 is fitted into the turntable 5, and a clamper (not shown) is lowered, so that the disk 2 is connected to the turntable 5.
Is inserted, and chucking ends. In this state, since the flap 1 is rotated and its tip 1d is lifted from the disk 2, the turntable 5 causes the disk 2 to
Even if the disk rotates, the disk 2 does not normally come into contact with the flap 1.

In addition, Patent Document 1 discloses a disk device having a structure that prevents damage to a storage layer of a DVD even when the DVD is pulled out obliquely above the conveyance path. This includes a housing having a slot for inserting and ejecting a disk, a guide member that is fixed to the inner surface of the housing and guides the disk, and a roller that applies a conveying force to the disk guided by the guide member. The guide member is configured such that a region facing the housing and close to the slot side is thinned to include a gap formed between the region and the inner surface of the housing.
JP 2004-139640 A

However, in the conventional configuration described with reference to FIGS. 3 to 5, there is a problem when a so-called runout disk is used as the disk 2. A surface runout disc is a disc with surface runout on the outer peripheral edge of the disc that has waviness in the current range of ± 0.5 mm. When such a disc is rotated by the turntable 5. , Flap 1
May interfere with the lower surface of the.

Specifically, as shown in FIGS. 3 and 5 above, the outer peripheral edge of the disk 2 interferes with the A and B portions surrounded by the dashed-dotted circles near the left and right ends of the lower surface of the flap 1. There are things to do. When such interference occurs, noise is generated due to repeated contact of the disk 2 with the flap 1, and there is a possibility that the reproduction of the disk 2 becomes impossible in a severe case.

On the other hand, the configuration as described in the above-mentioned Patent Document 1 is a DV equipped with storage layers on both sides.
Even when the D is pulled obliquely upward with respect to its originally assumed transport path, the memory layer is prevented from being damaged, and a problem that occurs during reproduction of a so-called surface runout disk is prevented. It was not something to try.

In view of the above problems, an object of the present invention is to provide a disk loading device that has a simple configuration and does not interfere with a flap even when a so-called surface runout disk is reproduced.

In order to achieve the above object, according to the present invention, in the disk loading device for holding the disk inserted from the insertion slot between the front end of the flap and the roller, and transporting the disk by the rotation of the roller, the flap On the surface of the disk, a predetermined portion that is near the outer peripheral edge of the disk when the disk is reproduced is deleted.

The predetermined portion to be deleted is a portion that interferes with an outer peripheral edge of the disc when the disc is a runout disc when the disc is reproduced.

According to the present invention, it is possible to provide a disk loading device that has a simple configuration and does not interfere with a flap even when a so-called surface vibration disk is reproduced.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the same code | symbol is attached | subjected to the part which has the same function as the said prior art, and detailed description is abbreviate | omitted suitably.

1A and 1B are diagrams showing the processing contents of a flap provided at an insertion port of a disk loading apparatus according to Embodiment 1 of the present invention, where FIG. 1A is a bottom view and FIG. 1B is a plan view. . FIG. 4C is an FF sectional view, and FIG. 4D is an HH sectional view. Furthermore, the figure (e) is the E section detailed drawing enclosed with the dashed-dotted line, and the figure (f) is GG sectional drawing. The front view is not shown. In FIG. 9A, the portion to be deleted from the above-described conventional flap is indicated by hatching.

In this embodiment, as shown in the figure, the deletion portions a and b are provided on the lower surface side (disk side) near the left and right ends of the flap 1, respectively. Further, a chamfered portion c is provided adjacent to the flap central side of the deleted portion a. Further, the ribs d and e extending in the longitudinal direction (left-right direction) of the flap 1 adjacent to the chamfered portion c and the deleting portion b on the central side of the flap are deleted.

As shown in FIG. 2C, the deletion part a is formed by deleting the build-up part indicated by the two-dot chain line following the tip part 1d so as to be flush with the lower surface L of the flap 1. . Similarly, in the deleted portion b, as shown in FIG. 4D, the build-up portion indicated by the two-dot chain line following the tip portion 1d is deleted so that it is flush with the lower surface L of the flap 1. It is a thing. Further, as shown in FIGS. 5E and 5F, the chamfered portion c is further inclined from the lower surface L so that the portion adjacent to the flap center side of the deleted portion a becomes deeper toward the flap center. Engraved.

2A and 2B are views showing a flap provided at the insertion slot of the disk loading apparatus according to Embodiment 1 of the present invention, where FIG. 2A is a bottom view and FIG. 2B is a plan view. The front view is not shown. In the same figure, the state after the flap 1 shown in FIG. 1 is shown, and the parts deleted in the manner of FIG. These deleted portions are portions that are in the vicinity of the outer peripheral edge of the disc when a large-diameter disc is reproduced.

In addition, the actual deletion process with respect to the flap 1 is performed by building up the said site | part of the resin metal mold | die which forms this flap 1. FIG. In this way, by removing predetermined portions on the lower surface side of the flap 1, the outer peripheral edge of the disc is not separated from the lower surface of the flap 1 and interferes with this even during playback of a so-called surface runout disc. Noise can be prevented, and reliable reproduction is possible. Therefore, it is possible to provide the user with a product with higher quality than before.

The figure which shows the processing content of the flap provided in the insertion port of the disc loading apparatus which concerns on Example 1 of this invention. The figure which shows the flap provided in the insertion port of the disk loading apparatus which concerns on Example 1 of this invention. The figure which shows the flap provided in the insertion port of the conventional disc loading apparatus. It is a principal part enlarged view of a flap, and the left view of a front-end | tip part. The figure which shows the mode at the time of completion of disk loading operation | movement.

Explanation of symbols

1 Flap 1a, 1b Rotating shaft 1c Lever 1d Tip 2 Disk 3 Roller 4 Chassis 5 Turntable a, b Deletion part c Chamfering part d, e Rib

Claims (3)

A disc inserted from an insertion slot is sandwiched between a tip end of a flap that can be rotated like a seesaw and a roller formed in a substantially drum shape, and the turntable rotates while rotating the roller to center the disc. In the disk loading device that transports up to
A disc loading device formed by deleting a predetermined portion in the vicinity of an outer peripheral edge of the disc at the time of reproducing the disc on the disc side surface of the flap;
The disk loading apparatus according to claim 1, wherein the predetermined portion to be deleted is a portion that interferes with an outer peripheral edge of the disk when the disk is a runout disk. In a disk loading device that sandwiches a disk inserted from an insertion port between a tip of a flap and a roller, and conveys the disk by rotation of the roller,
A disc loading apparatus, wherein a predetermined portion near the outer peripheral edge of the disc is deleted when the disc is reproduced on the disc side surface of the flap. 3. The disc loading apparatus according to claim 2, wherein the predetermined portion to be deleted is a portion that interferes with an outer peripheral edge portion of the disc when the disc is a surface runout disc when the disc is reproduced.

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