JP2006338762A - Optical disk apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an optical disk apparatus which is provided with a tray door opened and closed linking with abutting to a disk tray loading and unloading an optical disk by sliding, and in which opening and closing speed of the tray door is reduced, inpact of confliction when the tray door is closed is reduced, and occurrence of confliction sound is reduced without providing complex structure and members. <P>SOLUTION: The apparatus has an attaching part 32 of an almost U type of the side view formed at the rear 30 of a door main body 31, a guide rib 33 formed integrally with the door main body 31 at the rear 30 of the door main body 31, and a supporting shaft 34 provided projectingly and integrally with the attaching part 32, when a disk tray 2 is moved forward, the front of the disk tray 2 is contacted to the guide rib at initial. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

The present invention relates to an optical disc apparatus provided with a tray door that opens and closes when a tray on which an optical disc is placed is inserted and ejected.

Currently, many electronic devices such as audio equipment and video equipment employ optical disks as recording media. An electronic device (optical disk device) using an optical disk places an optical disk on a tray, and slides the tray into or out of the tray, thereby conveying the tray from the take-out position to the reproduction / recording position or vice versa. For example, when the optical disk device is a DVD (Digital Versatile Disc) player, the tray is inserted and ejected by a button provided on the player or an input from a remote controller.

An opening is formed in a portion where the tray on the front side of the DVD player is inserted and ejected, so that the inside cannot be seen in the opening when the tray is inserted into the player. In addition, a tray door is attached for suppressing the entry of foreign matter from the outside. The tray door is formed to open in accordance with the movement of the tray when the tray is ejected, and to close in accordance with the movement of the tray when the tray is inserted.

As described in Japanese Patent Application Laid-Open No. 2003-51181, the opening and closing of the tray door is urged in a direction to always close the tray door, and when the tray is discharged, the front surface of the tray is the rear surface of the tray door. Some open by pressing and close when the tray door moves along the tray when the tray is inserted.

FIG. 8 shows a front view of a conventional optical disc apparatus. The optical disk apparatus shown in FIG. 8 is a DVD player here, although not limited thereto. The DVD player PM shown in FIG. 1 has a front panel 91. The front panel 91 has an opening 911 for inserting and ejecting DVD media, a disc tray 92 that moves forward and backward from the opening 911, and an opening. And an openable / closable tray door 93 attached to the portion 911. The front panel 91 includes a media button 912 for inserting and ejecting DVD media, a power button 913, and a display unit 914 that indicates the state of the DVD player PM.

FIG. 9 is a side sectional view of a DVD player which is a conventional optical disc apparatus. When the DVD player PM advances the disc tray 92, the front surface 921 of the disc tray 92 pushes the tray door 93, the tray door 93 opens, and the disc tray 92 projects from the opening 911. The optical disk is inserted into and ejected from the disk tray 92 protruding from the opening 911 by attaching and detaching the optical disk.

As shown in FIG. 8, the tray door 93 is a long plate-shaped member made of resin. The tray door 93 has a pair of left and right support shafts 932 projecting concentrically and integrally at the tip of the mounting portion 931. The support shaft 932 is rotatably attached to a tray door attachment portion 910 formed on the back surface of the front panel 91. Further, the tray door 93 is urged in the closing direction by a spring 933 wound around one support shaft 932.

When the disc tray 92 moves forward, the front surface 921 of the disc tray 92 is moved to the tray door 9.
3 and the tray door 93 is opened. When the disc tray 92 moves backward, the tray door 93 is closed by the reverse movement of the forward movement. When the tray door 93 is closed, the front panel 91
It stops in contact with a door stop rib 912 provided at the upper part of the opening 911.
JP 2003-51181 A

When the disc tray 92 is inserted from the discharge position for placing the disc tray 92 to the reproduction position in the optical disc apparatus, the tray door 93 is closed in accordance with the movement of the disc tray 92. Tray door 93
Moves in conjunction with the sliding of the disc tray 92 and stops when it abuts against the door stop rib 912.

At this time, if the sliding speed of the disc tray 92 is fast, the rotational speed when closing the tray door 93 is also increased. Since the rotation speed of the tray door 93 operates in conjunction with the sliding of the disc tray 92, it becomes faster in the direction closer to the sliding direction of the disc tray 92, that is, closer to the closed state. When the collision speed between the tray door 93 and the door stopping rib 912 is high, a collision sound is generated when the tray door 93 and the door stopping rib 912 are in contact with each other.

Further, when the disc tray 92 repeatedly enters and exits the DVD player PM, the tray door 93 and the door stop rib 912 collide with each other, so that the stress due to the impact is concentrated on the tray door 93 and / or the cause of damage or destruction. become. Although it is conceivable to reduce the collision speed by providing a speed reducer on the tray door 93, the structure becomes very complicated, and it takes time and effort to manufacture, and the cost also increases.

Accordingly, the present invention provides an optical disc apparatus having a tray door that opens and closes in conjunction with a disc tray that slides in and out of an optical disc by sliding, and has an opening / closing speed of the tray door without providing a complicated structure or member. The purpose is to reduce the impact of collision when the tray door is closed and to reduce the occurrence of collision noise.

To achieve the above object, the present invention provides a disc tray in which an optical disc is arranged and can be moved forward and backward, a front panel having an opening through which the disc tray penetrates when the optical disc is inserted or ejected, and the opening. An optical disc apparatus having a tray door attached so as to be opened and closed and always biased in a closing direction, wherein the front panel is formed above the opening and is engaged with an upper portion of the tray door when the tray door is closed. A tray door stop rib, and a pair of tray door mounting portions that are integrally projected on the back surface of the front panel and rotatably support the tray door, and the tray door has a long door shape, ,
A pair of mounting portions that are integrally projected on the back side of the door main body and engaged with a tray door mounting portion formed on the back surface of the front panel, and are integrally projected on the back surface of the door main body, A guide rib that forms a gentle angle with respect to the sliding direction; and a spring that constantly urges the tray door in the closing direction. The guide rib and the mounting portion are integrally formed, and the tray is slid. The guide rib is formed so that the front surface of the tray comes into contact with the guide rib first when moving.

According to this configuration, when the disc tray is ejected (moved forward) from the inside of the optical disc apparatus, first, the disc tray comes into contact with the guide rib that forms a gentle angle with respect to the sliding direction of the disc tray. This is because when the disc tray is inserted (retracted) into the optical disc apparatus, the disc tray and the guide rib are in contact with each other, so that the rotation when the tray door that contacts and opens and closes the disc tray is closed. The speed can be reduced.

Thereby, the speed when the door main body of the tray door contacts the tray door stop rib can be reduced, and the impact of the collision between the tray door and the tray door stop rib can be reduced. Accordingly, it is possible to reduce a collision sound due to a collision between the tray door and the tray door stop rib, and it is possible to reduce an impact force generated in the tray door and the tray door stop rib due to an impact.

To achieve the above object, the present invention provides a disc tray in which an optical disc is arranged and can be moved forward and backward, a front panel having an opening through which the disc tray penetrates when the optical disc is inserted or ejected, and the opening. An optical disc apparatus having a tray door attached so as to be opened and closed and always biased in a closing direction, wherein the front panel is formed above the opening and is engaged with an upper portion of the tray door when the tray door is closed. A tray door stop rib, and a pair of tray door mounting portions that are integrally projected on the back surface of the front panel and rotatably support the tray door, and the tray door has a long door shape, ,
A pair of mounting portions that are integrally projected on the back side of the door main body and engaged with a tray door mounting portion formed on the back surface of the front panel, and are integrally projected on the back surface of the door main body, It has a guide rib that makes a gentle angle with respect to the sliding direction, and a spring that constantly biases the tray door in the closing direction, and when the tray slides, the front surface of the tray comes into contact with the guide rib first. A guide rib is formed as described above.

According to this configuration, when the disc tray is ejected (moved forward) from the inside of the optical disc apparatus, first, the disc tray comes into contact with the guide rib that forms a gentle angle with respect to the sliding direction of the disc tray. This is because when the disc tray is inserted (retracted) into the optical disc apparatus, the disc tray and the guide rib are in contact with each other, so that the rotation when the tray door that contacts and opens and closes the disc tray is closed. The speed can be reduced.

Thereby, the speed when the door main body of the tray door contacts the tray door stop rib can be reduced, and the impact of the collision between the tray door and the tray door stop rib can be reduced. Accordingly, it is possible to reduce a collision sound due to a collision between the tray door and the tray door stop rib, and it is possible to reduce an impact force generated in the tray door and the tray door stop rib due to an impact.

In the above configuration, when the mounting portion of the tray door is disposed outside the disk tray, the guide rib may be disposed between the pair of mounting portions. At this time, one guide rib may be formed at the center of the mounting portion, or a plurality of guide ribs may be formed. In the case of a plurality of formed ones, those in contact with the tray door with good balance are preferable. Moreover, you may provide the guide rib in the approximate center part of the tray door provided with the guide rib formed integrally with the attaching part.

Further, the portion of the guide rib that contacts the disc tray may be formed in a straight line shape, or may be formed in a shape connecting a plurality of straight lines or a curved shape. A shape that can reduce the collision speed when the tray door rotates in the closing direction and contacts the tray door stop rib can be widely adopted. Further, the portion of the guide rib that contacts the back surface of the door body is formed in a curved shape, and the tray door is in contact with the back surface of the door body from the state in which the tray door is in contact with the guide rib (or the opposite operation). ).

According to the present invention, there is provided an optical disc apparatus having a tray door that opens and closes in conjunction with a disc tray that slides in and out of an optical disc by sliding, and the opening and closing speed of the tray door is not provided with a complicated structure or member. , The impact of the collision when the tray door is closed can be reduced, and the occurrence of collision noise can be reduced.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an example of an optical disc apparatus according to the present invention, and FIG. 2 is a side sectional view showing a state in which a tray at the front portion of the optical disc apparatus shown in FIG. The optical disk apparatus shown in FIG. 1 is a DVD player here, although not limited thereto. A DVD player PL shown in FIG. 1 has a front panel 1, and an opening 11 for inserting and ejecting DVD media into the front panel 1, and an opening 11
It has a disc tray 2 that moves forward and backward, and a tray door 3 that can be opened and closed attached to the opening 11. The front panel 1 is provided with a media button 12 for inserting and ejecting DVD media, a power button 13, and a display unit 14 indicating the state of the DVD player PL.

As shown in FIG. 2, the front panel 1 includes an opening 11, and a tray door stop rib 111 that stops the tray door 3 so that the tray door 3 is not overclosed when the tray door 3 is closed above the opening 11.
It has a support shaft 34 formed on a substantially U-shaped mounting portion 32 of the tray door 3 to be described later and a tray door mounting portion 15 that is rotatably fitted.

FIG. 3 is a plan view showing a state where the disc tray is ejected and the tray door is opened. As shown in FIG. 3, the tray door 3 has a long door body 31, a substantially U-shaped attachment portion 32 formed on the back surface 30 of the door body 31, and the door body 31 on the back surface 30 of the door body 31. A guide rib 33 formed integrally with the support 31 and a support shaft 34 provided integrally with the mounting portion 32 are provided. Further, the tray door 3 is always urged in the closing direction by an elastic member (here, a spring 35) wound around one support shaft 34. As shown in FIG. 3, the guide rib 33 is formed integrally with the mounting portion 32 in the tray door 3.

4A to 4D are side cross-sectional views when the disc tray is discharged from the player to the outside. FIG. 4A shows a state in which, for example, an optical disc is being played back, and the disc tray 2 is in a stored state.

The state of the DVD player PL shown in FIG. 4B is a state in which the disc tray 2 has advanced to insert or replace the optical disc, and the tray door 3 has come into contact with the disc tray 2. The front surface 21 of the disk tray 2 is in contact with the guide rib 33 of the tray door 3. When the disc tray 2 moves forward, it first contacts the guide rib 33 of the tray door 3.

When the disc tray 2 further advances, the front surface of the disc tray 2 slides while contacting the guide rib 33 of the tray door 3. At this time, the tray door 3 rotates around the support shaft 34 and is pushed downward on the front surface to start opening (see FIG. 4C). When the disc tray 2 slides while being in contact with the guide rib 33, the guide rib 33 has a small angle with respect to the sliding direction of the disc tray 2, so that the rotational speed of the tray door 3 becomes slow.

When the disc tray 2 further advances, the disc tray 2 and the guide rib 33 of the tray door 3 are no longer in contact, and the disc tray 2 slides with the lower surface of the disc tray 2 and the door body 31 of the tray door 3 in contact (FIG. 4). (See (D)).

Further, when the disk tray 2 is stored, it can be stored in the reverse operation. That is, when the disc tray 2 is retracted from the state in which the door body 31 of the tray door 3 is in contact with the lower surface of the disc tray 2, the front surface of the disc tray 2 slides in contact with the back surface 30 of the tray door 3 and interlocks with it. Then, the tray door 3 also rotates in the closing direction. Further, when the disc tray 2 moves backward, the front surface 21 of the disc tray 2 slides while contacting the guide rib 33 of the tray door 3 (see FIG. 4C).

At this time, since the guide rib 33 is formed at a gentle angle with respect to the sliding direction of the disc tray 2, the rotational speed of the tray door 3 is higher than when the disc tray 2 is in contact with the back surface 30 of the tray door 3. Become slow. Further, when the disc tray 2 moves backward, the door body 31 of the tray door 3 comes into contact with the tray door stop rib 111 of the front panel 1 and the tray door 3 closes the opening 11 (see FIG. 4B).

At this time, the tray door 3 is rotated in conjunction with the backward movement of the disc tray 2. This interlocking is performed by the front surface 21 of the disc tray 2 sliding on the guide rib 33. Since the guide rib 33 is formed at an angle with respect to the sliding direction of the disc tray 2, the tray door 3 is provided. The rotation speed of the disk tray 2 is slower than that when the disk tray 2 rotates in contact with the back surface 30 of the tray door 3. Therefore, the impact when the door main body 31 of the tray door 3 comes into contact with the tray door stop rib 111 can be reduced, and the occurrence of collision noise can be reduced.

The inclination of the portion of the guide rib 33 that first contacts when the disc tray 2 opens is such that the smaller the angle formed with respect to the sliding direction of the disc tray 2, the more the rotation speed of the tray door 3 (in other words, the closing speed). This is preferable because it can be slowed down.

FIG. 5 is a plan view showing a state in which the tray door of the optical disk apparatus according to the present invention is opened, and FIG. 6 is a side sectional view of the optical disk apparatus according to the present invention. As shown in FIGS. 5 and 6, when the mounting portion 32 of the tray door 3 does not contact the disc tray 2, in other words, when the disc tray 2 is formed between the mounting portions 32, the guide rib 33 is formed. Are arranged between the attachment portions 32. As a result, when the disc tray 2 moves forward, it first contacts the guide rib 33 (that is, when it moves backward, it contacts the guide rib 33 until the end), so that the rotation speed when closing the tray door 3 is reduced. The collision noise can be reduced.

5 and 6 exemplify the case where one guide rib 33 is formed substantially at the center, but the present invention is not limited to this, and when the disk tray 2 moves forward from the storage state, A plurality of them may be arranged at a position where they first contact the guide rib 33.

In the above-described embodiment, the guide rib 33 is described as being formed with a gentle linear slope, but a plurality of angles having different angles at the part where the disc tray 2 first contacts and other parts are provided. The shape may have a linear inclination, or may be formed in a smooth curved surface.

Further, the present invention is not limited to these. As shown in FIG. 7, a shape that allows the disk tray 2 and the back surface 30 of the tray door 3 to smoothly and continuously contact when the disk tray 2 moves forward is widely adopted. can do.

In the above embodiment, a DVD player that reproduces DVD media is adopted as the optical disk apparatus, but the present invention is not limited to this, and an optical disk apparatus (for example, CD, LD, etc.) that inserts an optical disk using a tray is used. Can be widely adopted.

The present invention can be applied to an optical disc apparatus capable of inserting a medium using a tray such as a DVD, a CD, or an LD.

1 is a front view of an example of an optical disc apparatus according to the present invention. FIG. 2 is a side sectional view of the optical disc device shown in FIG. 1. FIG. 6 is a plan view showing a state where the disc tray is ejected and the tray door is opened. FIGS. 4A to 4D are side sectional views when the disc tray is discharged from the player to the outside. It is a top view in the state where the tray door of the optical disc device concerning the present invention opened. 1 is a side sectional view of an optical disk device according to the present invention. 1 is a side sectional view of an optical disk device according to the present invention. It is a front view of an example of the conventional optical disk device. It is a sectional side view of the conventional optical disk apparatus.

Explanation of symbols

PL DVD player 1 Front panel 11 Opening portion 111 Tray door stop rib 12 Media button 13 Power button 14 Display portion 15 Tray door mounting portion 2 Disc tray 21 Front surface 3 Tray door 31 Door main body 32 Mounting portion 33 Guide rib 34 Support shaft 35 Elastic member (spring)

Claims (3)

A disc tray that can move back and forth by placing an optical disc, a front panel that has an opening through which the disc tray passes when the optical disc is inserted or ejected, and an opening that can be opened and closed and attached in a direction that is always closed. An optical disc apparatus having a tray door
The front panel is formed above the opening, and when the tray door is in a closed state, a tray door stop rib that engages with an upper portion of the tray door, and a rear surface of the front panel that is integrally projected to support the tray door so as to be rotatable. A pair of tray door mounting portions for
The tray door is integrally projected on the back side of the door body having a long shape and the door body,
A pair of attachment portions for engaging with a tray door attachment portion formed on the back surface of the front panel;
A projecting rib integrally formed on the back surface of the door body, and a guide rib that forms a loose angle with respect to the sliding direction of the disc tray; and a spring that constantly biases the tray door in the closing direction;
The guide rib and the mounting portion are integrally formed, and when the tray slides,
An optical disc apparatus characterized in that guide ribs are formed so that the front surface of the tray comes into contact with the guide ribs first. A disc tray that can move back and forth by placing an optical disc, a front panel that has an opening through which the disc tray passes when the optical disc is inserted or ejected, and an opening that can be opened and closed and attached in a direction that is always closed. An optical disc apparatus having a tray door
The front panel is formed above the opening, and when the tray door is in a closed state, a tray door stop rib that engages with an upper portion of the tray door, and a rear surface of the front panel that is integrally projected to support the tray door so as to be rotatable. A pair of tray door mounting portions for
The tray door is integrally projected on the back side of the door body having a long shape and the door body,
A pair of attachment portions for engaging with a tray door attachment portion formed on the back surface of the front panel;
A projecting rib integrally formed on the back surface of the door body, and a guide rib that forms a loose angle with respect to the sliding direction of the disc tray; and a spring that constantly biases the tray door in the closing direction;
An optical disc apparatus, wherein guide ribs are formed such that when the tray slides, a front surface of the tray comes into contact with the guide ribs first. The optical disc apparatus according to claim 2, wherein the guide rib is disposed between the pair of attachment portions.

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