JP2780739B2 - Disc player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk player using a disk cartridge in which a disk is rotatably stored, and more particularly, to a disk having a shutter opening structure for opening a shutter of the disk cartridge without a cartridge holder. Regarding the player.

[0002]

2. Description of the Related Art As is well known, a disk is mainly used in the form of a disk cartridge which is housed in a caddy and loaded onto a disk player together with the caddy. Recently, the diameter 64
mm disk containing a disc of about mm
D) A disk cartridge with the product name of Japanese
Since it was developed by NY, the development of a disc player for this MD has been actively pursued. MD like this
There are two types, a recordable type shown in FIGS. 1A and 1B and a read-only type shown in FIGS. 2A and 2B.

Referring to FIG. 1A and FIG. 1B,
The recordable MD1 has a cartridge cell 2 having openings 3 and 4 formed on both side surfaces, and a shutter 5 which is moved along a sliding groove 6 so that the openings 3 and 4 are opened and closed simultaneously. Discs 9 in the cartridge cell 2 are partially exposed on both side surfaces through the openings 3 and 4, respectively.

A read-only MD 1 'shown in FIGS. 2A and 2B has a cartridge cell 2' having an opening 3 'on one side and a sliding groove 6 for opening and closing the opening 3'. ′. Therefore, a part of one side surface of the disk 9 'is exposed through the opening 3'. Square grooves 1 on shutters 5, 5 '
2, 12 'are formed, and locking hooks (not shown) for locking the shutter are formed inside the sliding grooves 6, 6'.

FIG. 3 shows the above-mentioned disk cartridges 1,
1 is a perspective view showing a conventional shutter opening structure of a disc player using 1 '. As shown, an optical pickup device (not shown) for reproducing information recorded on the disks 9, 9 '(see FIGS. 1A and 2A) in the disk cartridges 1 and 1' (see FIGS. 1A and 2A) is provided. Behind the upper surface 42 of the deck 40 to be inserted, the cartridge holder 30 into which the disc cartridges 1, 1 'are inserted.
Are connected by a hinge 50. Then, the disc cartridge 1 inserted into the cartridge holder 30,
An extraction unit 60 for discharging 1 'is provided.

[0006] The take-out unit 60 includes a disk cartridge 1,
When the disk cartridge 1 'is inserted into the cartridge holder 30, the contact portion 61 is brought into contact with the disk cartridge 1, 1', a pressure spring 63 for pressing the disk cartridge 1, 1 'to be inserted, and / Shutter opening / closing portion 64 for opening / closing shirts 5, 5 '(see FIGS. 1A and 2A) when taken out, and spring 66 for elastically biasing the taking out portion 60 in the taking out direction, that is, forward.
A spring engaging portion 62 at one end of the spring 66, and the inserted disk cartridges 1, 1 '.
And a locking spring 65 which is elastically biased downward to prevent removal of the locking spring. A long hole 67 for guiding the ejection unit 60 when the disc cartridges 1 and 1 'are inserted and ejected is formed on a side surface of the ejection unit 60.

The spring holder 3 to which the other end of the spring 66 of the take-out unit 60 is fixed is attached to the cartridge holder 30.
2, a locking projection 33 for locking the locking spring 65 of the take-out portion 60, and a long hole for guiding the shutter opening / closing portion 64 so that the shutters 5, 5 'of the disk cartridges 1, 1' to be inserted / removed can be opened and closed. 36
And a locking release portion (not shown) for releasing the locking of the shutters 5 and 5 '.

On the upper surface 42 of the deck 40, a locking release projection 41 for releasing the locking state of the locking spring 65 locked to the locking projection 33 of the cartridge holder 30, and a swing of the loaded disk cartridges 1, 1 'are prevented. A seat pin 5
2 are provided. However, as described above, a disc player using a cartridge holder requires many components to seat the disc cartridge on the deck and open and close the shutter of the disc cartridge. This was one of the causes of high cost and a failure due to interference between components.

[0009]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disk player having a shutter opening structure having a simple structure capable of opening a shutter of a disk cartridge without providing a cartridge holder.

[0010]

In order to achieve the above object, the present invention provides a deck, a shutter provided on the deck so as to be openable and closable, and provided on one side of the deck and loaded on the deck. A disc opening / closing unit for opening / closing a shutter of a cartridge, wherein the shutter opening / closing unit includes a shutter opening / closing unit for opening / closing the shutter and a shutter opening slide formed with a locking release unit for releasing locking of the shutter. Including a link provided between the shutter opening slide and the cover,
The shutter opening slide is moved by the link as the shutter is opened and closed, whereby the shutter opening and closing unit opens and closes the shutter.

A guide slot is formed in one side of the shutter opening slide in a longitudinal direction, and a deck slide for guiding the shutter opening slide is extended from one side of the deck, and the shutter opening is provided on the deck slide. A pin inserted into a guide slot of the slide to guide the shutter opening slide.

The guide slot has a front portion bent to one side of the deck to prevent the cartridge from coming into contact with the shutter opening / closing portion when the cartridge is inserted into and removed from the deck. Features.

[0013]

FIG. 4 shows a main part of a disk player having a shutter opening structure according to the present invention.
In the figure, reference numeral 100 denotes a cover, and 200 denotes a deck. The deck 200 is provided with an optical pickup (not shown).
0 is seated on the upper surface 201. On one side of the deck 200, a deck slide 203 provided with a first pin 202 is formed. Deck slide 203 and deck upper surface 2
Numeral 01 is connected by a deck side surface portion 204, and a first guide elongated hole 205 is formed in the deck side surface portion 204 in the longitudinal direction. Shutter opening slide 2 to be described later
20 is guided along the first guide slot 205.

The shutter opening slide 220 has a contact portion 225 formed in contact with the upper surface of the deck slide 203 and having a second guide slot 221 formed therein, and a shutter opening / closing portion 222 serving to open and close the shutter 5 of the disc cartridge 1. And a lock release portion 223 for releasing the locking of the shutter 5. The first guide slot 205 is located below the locking release portion 223.
The second pin 224 inserted into the
And a load 231 connected to one end of the load 231 are provided. One side of the load 231 is inserted into the first guide slot 205 together with the second pin 224 to guide the shutter opening slide 220 along the first guide slot 205.

The front end of the second guide slot 221 is bent toward the deck side surface 204. This is to prevent the disk cartridge 1 from hitting the shutter opening / closing part 222 when it is seated on the upper surface 201 of the deck 200. The cover 100 is connected to the deck 200 by a hinge, and the rear end of the cover 100 is connected to the other end of the link 230. Accordingly, when the cover 100 is rotated, the shutter opening slide 220 is rotated.
Is guided along the first guide slot 205 and the second guide slot 221 by the link 230.

The operation of the disc player having the above-described shutter opening structure according to the present invention will be described with reference to FIGS. FIG. 5 is a perspective view showing an opened state of a cover 100 of a disc player having a shutter opening structure according to the present invention. As shown, since the cover 100 is open, the link 230 allows the shutter opening slide 2 to be opened.
Reference numeral 20 is located behind the deck slide 203.
At this time, since the front end of the second guide slot 221 is guided by the first pin 202 fixed to the deck slide 203, the shutter opening slide 220 is separated from the deck side surface 204. Therefore, as shown in FIG. 6, when the cartridge 1 is seated on the upper surface 201 of the neck, the cartridge 1 can be seated on the upper surface 201 of the deck without hitting the shutter opening / closing part 222.

FIG. 7 is a perspective view showing a state where the shutter is closed after the cartridge is seated on the disk player having the shutter opening structure according to the present invention. As shown, when the cover 100 is lowered by a predetermined angle, the link 230 provided between the cover 100 and the shutter opening slide 220 moves the shutter opening slide forward, that is, in the direction d. When the shutter opening slide 220 is moved in the d direction, the shutter opening slide 220 comes into contact with the deck side surface portion 204. At this time, the shutter opening / closing part 222 of the shutter opening slide 220 is
The locking release portion 223 is inserted into the rectangular groove 12 formed on the side surface of the cartridge 1, and pushes a shutter locking hook (not shown) formed on the sliding groove 6 while being inserted into the sliding groove 6 formed on the side surface of the cartridge 1. The locking state of the shutter 5 is released.

FIG. 8 is a perspective view showing a disk player having a shutter opening structure according to the present invention, in which the cartridge is seated and the shutter is closed, and then the shutter of the cartridge is opened. As shown, cover 1
When 00 is closed, the shutter 5 is completely opened by the shutter opening / closing section 222 while the shutter opening slide 220 continues to move in the d direction by the link 230.
A leaf spring (not shown) provided on the cover 100 pushes the disk cartridge 1 seated on the deck 200 to firmly seat the cartridge 1. In this state, the disc player records predetermined information on the disc of the cartridge 1 using the optical pickup,
Play the recorded information.

When the cover 100 is opened, the link 230 is opened.
As a result, the shutter opening slide 220 is moved rearward, that is, in the direction opposite to the arrow d, and the shutter opening / closing section 222 closes the shutter by the movement of the shutter opening slide 220. The closing shutter 5 is locked by the shutter locking hook (not shown). In this state, the user can take out the cartridge 1 by hand and replace it with another cartridge. That is, the front end of the second guide slot 221 is located at the first pin 202 of the deck slide 203 in the state as shown in FIG.
The cartridge 1 does not hit the shutter opening / closing section 222.

[0020]

As described above, the present invention can provide a disk player having a shutter opening structure with a simple structure that allows a disk cartridge to be seated on a deck without providing a cartridge holder. Therefore, there are the following advantages. That is, first, it can be manufactured at low cost. second,
Failure due to interference between parts can be prevented. Third, the disk player can be further downsized.

[Brief description of the drawings]

FIG. 1A is a perspective view of a recordable disk cartridge viewed from above, and FIG. 1B is a perspective view of a recordable disk cartridge viewed from below.

FIG. 2A is a perspective view of a read-only disk cartridge viewed from above, and FIG. 2B is a perspective view of a read-only disk cartridge viewed from below.

FIG. 3 is a perspective view showing a conventional shutter opening structure of a disc player.

FIG. 4 is an exploded perspective view showing a main part of a disc player having a shutter opening structure according to the present invention;

FIG. 5 is a perspective view showing a state in which a cover is opened by a disc player having a shutter opening structure according to the present invention.

FIG. 6 is a perspective view showing a state in which a cartridge is seated on a disc player having a shutter opening structure according to the present invention.

FIG. 7 is a perspective view showing a state in which a shutter is closed after a cartridge is seated on a disk player having a shutter opening structure according to the present invention.

FIG. 8 is a perspective view showing a state in which the shutter is opened after the cartridge is seated and the shutter is closed by the disc player having the shutter opening structure according to the present invention.

[Explanation of symbols]

 5, 5 'Shutter 100 Cover 200 Deck 203 Deck stand 220 Shutter opening slide 222 Shutter opening / closing section 223 Lock release section 230 Link

Claims (1)

(57) [Claims] 1. A disk comprising: a deck; a cover provided on the deck so as to be openable and closable; and a shutter opening / closing means provided on one side of the deck and for opening and closing a shutter of a cartridge loaded on the deck. In the player, the shutter opening / closing unit is provided between the shutter opening slide and the cover, and a shutter opening slide having a shutter opening / closing unit that opens / closes the shutter and a locking release unit that releases locking of the shutter. comprises a link, said by the link in accordance with the cover is opened and closed shutter opening slide is moved, thereby Ri Na as the shutter opening and closing unit to open and close the shutter, one side of the shutter opening slide In the longitudinal direction
A guide slot is formed in the shutter opening slide from one side of the deck.
The deck slide that guides the slide is extended, and the deck opening slide has the shutter opening slide.
The shutter opening is inserted into the guide
A pin for guiding the slide is provided, and the front of the guide slot is bent toward one side of the deck.
Insert the cartridge into the deck
When the cartridge is removed, the contact between the cartridge and the shutter
A disc player characterized by being prevented .