JP2004273065A - Disk loading apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a disk loading apparatus capable of automatically and correctly placing a disk thereon irrespective of the direction of the displacement of the disk with a simplified structure. <P>SOLUTION: A circular recessed part 2a for example, on/to which the disk is placed/positioned, is provided in the upper surface of a tray 2. A circumferential edge part 2aa of an interior substantially half of the recessed part 2a is more raised than a circumferential edge part 2ab of a front side substantially half of the same. Further, a substantially flat plate-shaped pawl 4a is provided slantingly on the circumferential part 2aa such that it hangs down toward the center of the recessed part 2a. In contrast, a substantially flat plate-shaped pawl 4b is provided on the circumferential edge part 2ab of the front side substantially half of the recessed part 2ab such that it hangs down toward the center of the recessed part 2a. Moreover, the pawl 4a is more raised than the pawl 4b. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a disc loading device provided with a tray for inserting and ejecting a disc such as a CD and a DVD.
[0002]
[Prior art]
Conventionally, in such a disc loading apparatus, a disc is inserted into a main body by a tray and ejected from the main body. However, especially when inserting a disc, if the tray is pulled into the main unit without the disc being properly placed on the tray, the disc will not be properly chucked by the disc drive unit, and the disc will be damaged. Failure may occur.
[0003]
In order to solve such a problem, as a tray driving device for a disk player, when the tray is moved from the eject position to the loading position in a state where the disk is mounted displaced from the mounting portion, the disk mounting error may occur. In order to prevent the disk from being damaged, there has been disclosed a device in which the disk is forcibly moved to a mounting portion of a tray (for example, see Patent Document 1).
[0004]
Specifically, during the period of movement of the tray from the eject position to the loading position, the drive speed is changed, and the drive source is controlled so as to generate a moving force capable of moving the disc relative to the tray. It is provided with control means. The control means controls the drive source such that the tray temporarily stops and moves again in the direction of the loading position during the period of movement of the tray from the eject position to the loading position. In addition, during the movement period of the tray from the eject position to the loading position, the movement direction of the tray is reversed for a required time, and the drive source is controlled so that the tray moves again toward the loading position.
[0005]
As a result, acceleration is applied to the disk, and a disk that is not correctly mounted on the disk mounting portion can be automatically and correctly mounted, thereby preventing damage to the disk due to a user mounting the disk by mistake. It is going to be possible.
[0006]
[Patent Document 1]
JP-A-7-141743
[Problems to be solved by the invention]
However, in the configuration described in Patent Document 1, it is mainly assumed that the disc is placed with a position shifted toward the front of the tray (toward the user when viewed from the user) with respect to the disc mounting portion. . In order to correctly place the disc displaced in such a direction on the disc mounting portion, the movement of the tray is controlled. For example, the disc is moved rearward of the tray with respect to the disc mounting portion (from the user). It is not assumed that the camera is placed at a position shifted to the back side when viewed.
[0008]
For this reason, if the above-described tray movement control is performed in a state where the disc is mounted with the disc shifted to the rear side, there is a possibility that further problems may occur. In other words, the disc mounted on the rear side is shifted further toward the rear side, and may be dropped from the tray in severe cases. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide a disk loading device capable of automatically and correctly mounting a disk irrespective of the direction of displacement of the disk with a simple configuration. .
[0009]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, there is provided a tray member for placing a disk thereon, inserting the disk into the housing, and discharging the inserted disk from the housing, and controlling the moving speed or the moving direction of the tray member. A disc loading device, wherein the disc mounted on the tray member generates an inertial force capable of moving relative to the tray member.
The concave portion provided on the upper surface of the tray member and on which the disc is placed is configured such that the height of the peripheral edge on the back side is higher than the height of the peripheral edge on the front side.
[0010]
Further, the height of the claw provided on the inner peripheral edge of the recess is higher than the height of the claw provided on the front peripheral edge. Further, each of the claws is provided to be inclined so as to hang down toward the center of the concave portion. Also, each of the claws is substantially flat.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a side view schematically showing a tray operation procedure in the loading device of the present invention. 5A to 5E show a series of operations from the start to the end of tray-in. Although FIG. 1 shows a case where the disc is mounted on the disc mounting portion so as to be shifted forward of the tray (toward the user as viewed from the user), the present invention is not limited to this. The tray operation is performed in the following procedure. The procedure numbers (1) to (5) correspond to FIGS. 1 (a) to (e), respectively.
[0012]
▲ 1 ▼. With the tray 2 protruding from the housing 1, the disc 3 is placed on the tray 2, and tray-in (insertion operation) is started as indicated by an arrow A.
▲ 2 ▼. When the tray 2 is inserted halfway, the tray 2 is stopped suddenly.
(3). The tray 2 is quickly discharged by a predetermined distance as indicated by an arrow B.
▲ 4 ▼. As shown by arrow D, tray-in is started again.
▲ 5 ▼. The tray 2 and the disk 3 are inserted into the housing 1, and the tray-in ends.
[0013]
In FIG. 11A corresponding to the procedure (1), the disc 3 is mounted shifted in front of the tray 2 (front side). In FIG. 9C corresponding to the procedure (3), the disk 3 is shifted rearward (backward) with respect to the tray 2 by the inertial force as shown by an arrow C, and the disk 3 is in a correct mounting position.
[0014]
As described above, by intentionally swinging the tray 2 back and forth, the disk 3 generates an inertial force capable of moving relative to the tray 2 so that the disk 3 is in the correct mounting position. I have. This is the same as the configuration in Patent Document 1. However, in the above procedure, steps (2) to (4) may be repeated a plurality of times, whereby the disk 3 can be more reliably guided to the correct mounting position.
[0015]
In the present invention, in addition to the above-described configuration of performing the tray-in operation of swinging back and forth, the shape of the tray is devised so that the disk can be more reliably guided to the correct mounting position of the tray. Normally, there is a concave portion as a disc mounting portion on the tray, and furthermore, a claw for vertical placement (vertical use) is provided on the front and rear peripheral edges of the concave portion.
[0016]
Here, in the present invention, the height of the inner peripheral edge of the concave portion is higher than the height of the front peripheral edge. In addition, the height of the nail provided on the rear side peripheral portion is set higher than the height of the nail provided on the front side peripheral portion. Thereby, it is possible to prevent the disc from being extremely shifted toward the back side of the tray. Further, since the heights of the front and rear claws are different, the interval between these claws is widened, and the disc is more likely to enter the recess.
[0017]
Further, for example, the nails are substantially flat, and both the nails on the near side and the nails on the rear side are inclined so as to hang down toward the center of the concave portion. Thereby, even when the disc is placed on the claw, it easily slides down the inclined surface of the claw upper surface and enters the recess, and conversely, after the disc enters the recess, the inclined surface of the claw lower surface causes It is regulated and it is difficult to come out of the recess. Specific configurations of these are shown below.
[0018]
FIG. 2 is a side vertical cross-sectional view schematically showing a configuration of a tray according to an embodiment of the loading device of the present invention. As shown in the figure, a disc-shaped disc 3 (not shown here) is placed and positioned on the upper surface of the tray 2, for example, a circular recess 2a is provided. A substantially half peripheral part 2aa on the back side of the recess 2a is higher than a substantially half peripheral part 2ab on the front side.
[0019]
A substantially flat claw 4a is provided on the peripheral portion 2aa so as to be inclined so as to hang down toward the center of the concave portion 2a. On the other hand, a substantially flat claw 4b is provided on the peripheral edge portion 2ab, which is approximately half of the concave portion 2a on the front side, so as to be inclined downward toward the center of the concave portion 2a. And the nail | claw 4a is a position higher than the nail | claw 4b. Further, although not shown, it is more preferable that a wall surface for preventing the occurrence of back-shift is provided further on the back side of the claw 4a. In the same drawing, each claw is illustrated as being provided at a cross-sectional position including the center of the concave portion. May be.
[0020]
FIG. 3 is a side vertical cross-sectional view schematically showing a state where a disk is placed on the tray according to the present embodiment. First, as shown in FIG. 7A, when the disc 3 is placed on both the claws 4a and 4b, the tray 2 is suddenly stopped and rapidly stopped in the tray operation procedures (2) and (3). Due to the inertial force caused by the proper ejection operation, the disc 3 is shifted to the back side with respect to the tray 2 and slides down the upper surface of the claw 4b to fit into the recess 2a only on the near side of the disc 3, and the state shown in FIG. It becomes.
[0021]
From this state, in the tray operation procedure {circle around (4)}, the disk 3 shifts toward the front side with respect to the tray 2 due to the inertia force due to the reinsertion operation, and slides down the upper surface of the claw 4a, and the rear side of the disk 3 Is also fitted into the recess 2a, and the disk 3 is correctly placed on the tray 2 as shown in FIG. Alternatively, the state shown in FIG. 3C is similarly obtained when the sheet is first placed as shown in FIG.
[0022]
Further, as shown in FIG. 4D, when the disk 3 is placed on the front side of the tray 2, the disk 3 is moved by the inertia force in the tray operation procedure (2) and (3). , And slides down on the upper surface of the claw 4b, so that the disk 3 is correctly placed on the tray 2 as shown in FIG. In addition, in the state (1) of the tray operation procedure from the state shown in FIG. 7A, the state shown in FIG. In this case, the state shown in FIG.
[0023]
As described above, even if the disc is placed on either side of the front side or the back side of the tray, or the disc is placed on the nail, the configuration of the tray in the present invention, By combining with the tray-in operation of swinging the disc back and forth, the disc can be reliably guided to the correct mounting position of the tray.
[0024]
【The invention's effect】
As described above, according to the present invention, it is possible to provide a disk loading device that can automatically and correctly load a disk with a simple configuration regardless of the direction of the disk displacement.
[0025]
Specifically, the height of the inner peripheral edge of the tray recess is set higher than the height of the front peripheral edge. In addition, the height of the nail provided on the rear side peripheral portion is higher than the height of the nail provided on the front side peripheral portion. Thereby, it is possible to prevent the disc from being extremely shifted toward the back side of the tray. Further, since the heights of the front and rear claws are different, the interval between these claws is widened, and the disc is more likely to enter the recess.
[0026]
Further, the nails are substantially flat, and both the nails on the near side and the nails on the rear side are inclined so as to hang down toward the center of the concave portion. Thereby, even when the disc is placed on the claw, it is easy to slide down the inclined surface of the claw upper surface and enter the concave portion. It is regulated and it is difficult to come out of the recess.
[Brief description of the drawings]
FIG. 1 is a side view schematically showing a tray operation procedure in a loading device of the present invention.
FIG. 2 is a side longitudinal sectional view schematically showing the configuration of a tray according to an embodiment of the loading device of the present invention.
FIG. 3 is a side longitudinal sectional view schematically showing a state where a disk is placed on a tray according to the embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Housing 2 Tray 2a Recess 3 Disk 4a, 4b Claw

Claims (5)

A tray member for placing the disk therein, inserting the disk into the housing, and discharging the inserted disk from the housing, changing the moving speed or the moving direction of the tray member, and setting the disk placed on the tray member A disk loading device configured to generate an inertial force movable relative to the tray member,
The concave portion provided on the upper surface of the tray member and on which the disk is placed is configured such that the height of the peripheral portion on the back side is higher than the height of the peripheral portion on the front side,
The height of the claw provided on the back side peripheral portion of the recess is made higher than the height of the claw provided on the front side peripheral portion,
The disc loading device according to claim 1, wherein each of the claws has a substantially flat plate shape and is inclined so as to hang down toward the center of the concave portion. A tray member for placing the disk therein, inserting the disk into the housing, and discharging the inserted disk from the housing, changing the moving speed or the moving direction of the tray member, and setting the disk placed on the tray member A disk loading device configured to generate an inertial force movable relative to the tray member,
The disc loading device, wherein the recess provided on the upper surface of the tray member and on which a disc is placed has a height of a peripheral edge on the back side higher than a height of a peripheral edge on the front side. 3. The disk loading device according to claim 2, wherein the height of a claw provided on the inner peripheral edge of the recess is higher than the height of a claw provided on the front peripheral edge. The disk loading device according to claim 3, wherein each of the claws is provided to be inclined so as to hang down toward the center of the recess. The disk loading device according to claim 4, wherein each of the claws has a substantially flat plate shape.

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