JP2003059250A - Tray holding mechanism in optical disk device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the tray holding mechanism of an optical disk, which can suppress the rattling of a tray while the number of parts is reduced and cost is reduced. SOLUTION: The tray holding mechanism in the optical disk device has a tray 30 where an optical disk is vertically arranged, and a bottom case 40 which is fixed in the optical disk device and holds the upper end part 35 and/or the lower end part 33 of the tray so that the tray 30 can be protruded/entered from/into the optical disk device. The mechanism has pressing members 42 and 48 which are integrally formed with the bottom case 40, which abut on the side of an abutting part 44 arranged in the tray upper end part 35 and/or the tray lower end part 33 and prevent the rattling of the tray 30 when it is stored.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a CD, a CD-R,
The present invention relates to a tray holding mechanism that holds a tray on which an optical disc is placed in an optical disc device that reproduces data from and / or records data on an optical disc such as a CD-RW and a DVD.

[0002]

2. Description of the Related Art An optical disk device for reproducing and / or recording data on an optical disk such as a CD, a CD-R, a CD-RW, and a DVD is provided with a tray for mounting the optical disk. The tray in the conventional optical disk device will be described below with reference to FIG. The optical disk device shown here is a vertical type in which an optical disk is mounted vertically, and is a slim type built in a computer and formed narrow. In FIG. 4, only the lower end of the tray and the lower end of the bottom case are shown.

Reference numeral 10 is a tray. Tray 1 in a slim type optical disc device where the optical disc is placed vertically
No. 0 has a recess 12 in which an optical disc is placed, and a chucking member for holding the optical disc, an optical pickup, a spindle motor (not shown), etc. are built therein. A guide rail (not shown) housed in the bottom case 14 is formed in the bottom portion 13 of the tray 10, and the guide rail is housed in the bottom case 14. Since the guide rails are slidably held in the bottom case 14, the tray 10 can slide along the longitudinal direction (axial direction) of the bottom case 14.

The bottom case 14 is a metal member that holds the upper and lower ends of the tray 10 and is formed so that the tray is slidable in the protruding and inserting direction. The bottom case 14 is fixed inside the optical disk device. The bottom case 14 is fixed by inserting a screw or the like into the screw hole 11 and screwing it.

Since the vertical type slim type optical disk device has a spindle motor for rotating the optical disk in the tray and an optical pickup built-in in order to reduce the size and weight, the tray is stored. If there is rattling on the tray at this time, reading of data from the optical disk will be hindered. Therefore, conventionally, a holding member 16 for holding the tray 10 so as not to rattle is provided in the bottom case 14.

Reference numeral 16 is a leaf spring as an example of a conventional pressing member. The leaf spring 16 is fixed to the inner bottom surface of the bottom case 14 by a rivet 17, and is provided so as to abut on a side surface of an abutting portion 18 formed on a part of the guide rail of the tray 10. In this way, the bottom case 1
By providing a leaf spring 16 in the inside of the guide rail 4 and pressing the side surface of the abutting portion 18 formed on the guide rail, the tray 1 can be stored between the bottom holder 14 and the tray 10 during storage.
It can be held down so that 0 does not rattle.

[0007]

In the tray holding mechanism in the optical disk device as described above, a holding member such as a leaf spring is required in addition to the tray and the bottom case. Since the members are attached to the bottom case, there is a problem that the number of parts is increased and the cost is increased.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to hold a tray of an optical disk apparatus capable of suppressing rattling of the tray while reducing the number of parts to reduce the cost. To provide a mechanism.

[0009]

That is, according to the tray holding mechanism in the optical disk device according to the present invention, the tray on which the optical disk is mounted vertically is fixed, and the tray is fixed in the optical disk device. In a tray holding mechanism in an optical disk device having a bottom case for holding the upper end portion and / or the lower end portion of the tray so that the tray can be projected and inserted, the tray upper end portion and / or the tray lower end is formed integrally with the bottom case. It is characterized in that it is provided with a pressing member which comes into contact with the side surface of the abutting portion provided in the portion and prevents the rattling of the tray when it is stored. By adopting this configuration, since the pressing member is formed integrally with the bottom case and the number of parts is not increased, it is possible to reduce the cost and contribute to the weight reduction of the entire optical disc device. it can.

The pressing member may be a burring portion formed by burring the bottom case. The pressing member may be a bent piece formed by bending a part of the bottom case.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 shows the overall structure of the tray holding mechanism of the present embodiment, including the holding tray. FIG. 2 is an enlarged view in which the portion A shown in FIG. 1 is enlarged. The tray 30 is formed with a recess 32 on which an optical disc can be placed. Also, this tray 30
Is a vertical type and slim type. Therefore, the chucking member 34 and the chucking member 3 for chucking the optical disk placed in the recess 32 of the tray 30.
4, a spindle motor 36 having a rotation shaft connected to the center of a chucking member 34 for rotating the optical disk chucked by 4, and an optical pickup 38 and the like provided movably in the radial direction of the optical disk and the tray 30. It is provided integrally.

Reference numeral 40 is a bottom case. The bottom case 40 is a metal member and includes a lower case portion 40a that holds the lower end portion 33 of the tray 30 and an upper case portion 40b that holds the upper end portion 35 of the tray 30.
In this way, the bottom case 40 has the upper end portion 3 of the tray 30.
5 and the lower end portion 33 are held to guide the tray protruding / inserting operation shown in the arrow B direction. The bottom case 40 is fixed in the optical disc device.

The lower case portion 40a of the bottom case 40 is
It is formed in a U-shaped cross-section that opens upward and can accommodate the lower end 33 of the tray 30. A guide rail (not shown) provided along the protruding direction is provided at the lower end of the bottom case 40 at the lower end portion 40a of the bottom case 40, as described in the related art.
The tray 30 is provided so as to be stored inside.
The guide rail allows sliding along the bottom case 40.

A thick contact portion 44 is provided at a predetermined portion of the guide rail of the tray 30 so as to project in the width direction (toward the side surface 46 of the lower case portion 40a of the bottom case 40). . The contact portion 44 is provided on the back side of the tray 30, and a holding member (described later) for the tray 30 is provided when the tray 30 is stored in order to suppress rattling of the tray 30. It is provided at a position corresponding to the existing position.

Reference numeral 42 is a pressing member. The pressing member 42 is the bottom surface 4 of the lower case portion 40a of the bottom case 40.
1 is a bent piece in which a part is cut out and bent so as to stand. The pressing member 42 contacts the side surface of the contact portion 44 provided on the guide rail when the bottom of the tray 30 is housed in the bottom case 40. Further, the holding member 42 prevents rattling when the tray is stored. The contact portion 44 is provided so as to be located at a position where the pressing member 42 is provided when the tray 30 is stored. Therefore, except when the tray 30 is stored, the pressing member 42 does not abut the abutting portion 44 of the tray, and the tray 30 is provided so as to freely project into the pressing member 42. There is.

As described in the prior art, reference numeral 45 is a screw hole for attaching and fixing the bottom case 40 to the host computer or the like. The screw hole 45 is formed by burring so as to project upward from the bottom surface of the bottom case 40. In the vicinity of the burring-processed screw hole 45, a cutout hole 49 is formed by partially cutting out the side surface 46 of the bottom case 40. Since the cutout hole 49 is formed, when the bottom case 40 is burred, even if meat is collected in the burring portion, the side surface 4 of the lower case portion 40a is
6 can be prevented from distorting. Without the notch hole 49, the side surface 46 may be pulled toward the burring portion and the side surface 46 may be distorted.

Next, FIG. 3 shows another embodiment of the pressing member. It should be noted that the same components as those of the above-described embodiment are denoted by the same reference numerals, and description thereof may be omitted. The pressing member 48 according to the present embodiment is a burring portion formed by burring and projecting upward from the bottom surface 41 of the lower case portion 40a of the bottom case 40. Holding member 48 by burring part
Also, the tray 30 is provided at a position where it abuts the side surface of the abutting portion 44 provided on the guide rail when the bottom portion of the tray 30 is housed in the bottom case 40. Then, the pressing member 48 formed by such a burring process.
Also prevents rattling when the tray is stored.

Further, in the present embodiment, the notch hole 49 corresponding to the pressing member 48 of the burring portion is not formed, but the notch hole may be formed in the side surface 46 near the pressing member 48.

The above-mentioned two embodiments are the pressing members provided in the lower case portion of the bottom case. However, if a contact part is provided at the top of the tray,
A pressing member may be provided in the upper case portion of the bottom case to prevent rattling when the tray is stored.

Although the above-mentioned pressing member is provided integrally with the bottom case, it is not limited to the upright piece and the burring portion as in the above embodiment.

The optical disk apparatus to which the present invention is applied may be an apparatus having a function of only reproducing an optical disk, or an apparatus capable of both recording and reproducing.

Although the present invention has been variously described with reference to the preferred embodiments, the present invention is not limited to these embodiments, and many modifications can be made without departing from the spirit of the invention. Of course.

[0023]

According to the tray holding mechanism in the optical disk device of the present invention, since the pressing member is formed integrally with the bottom case, the number of parts does not increase,
It is possible to reduce the cost and also contribute to the weight reduction of the entire optical disc device.

Further, even if the pressing member is a burring portion formed by burring the bottom case, the number of parts is not increased, so that the cost can be reduced and the whole optical disk device can be manufactured. It can also contribute to weight reduction. Further, even if the pressing member is a bent piece formed by cutting out and bending a part of the bottom case, the number of parts does not increase, so that the cost can be reduced and the entire optical disc apparatus can be achieved. It can also contribute to weight reduction.

[Brief description of drawings]

FIG. 1 is a perspective view illustrating the overall structure of a tray holding mechanism in an optical disk device according to the present invention.

FIG. 2 is an enlarged view of a portion A shown in FIG.

FIG. 3 is an enlarged view showing another embodiment of a portion A shown in FIG.

FIG. 4 is a perspective view of a tray holding mechanism in a conventional optical disc device.

[Explanation of symbols]

30 trays 32 recess 33 Lower end 35 Upper end 34 Chucking material 36 spindle motor 38 Optical pickup 40 bottom case 40a Lower case part 40b Upper case part 41 Bottom 42,48 holding member 44 Contact part 45 screw holes 46 sides 49 Notch hole

Claims (3)

[Claims] 1. A tray on which an optical disc is mounted vertically, and a tray which is fixed in the optical disc device and holds an upper end portion and / or a lower end portion of the tray so that the tray can be inserted into the optical disc device. In a tray holding mechanism in an optical disc device having a bottom case, the tray holding mechanism is formed integrally with the bottom case and abuts against a side surface of an abutment portion provided at a tray upper end portion and / or a tray lower end portion and is accommodated. A tray holding mechanism in an optical disk device, comprising a pressing member for preventing rattling of the tray. 2. The tray holding mechanism in the optical disk device according to claim 1, wherein the pressing member is a burring portion formed by burring the bottom case. 3. The tray holding mechanism in an optical disk device according to claim 1, wherein the pressing member is a bent piece formed by bending a part of the bottom case.