JPH0512776A - Loading device for optical disk or the like - Google Patents

Abstract

PURPOSE:To employ common mechanism for the major parts of the loading device of a disk player which loads a disk from a cartridge and a loading device which loads a disk directly. CONSTITUTION:Gear members 31a and 31b are mounted on trays 2a and 2b, wherein the cartridge 1 containing the disk is inserted and held, so that spur gears 31a1 and 31b1 face the insides of the trays and pinions 31a2 and 31b2 project out; and racks 32a and 32b which engage the pinions 31a2 and 31b2 are fixed on a chassis side in the horizontal moving direction of the trays 2a and 2b. Rack parts 34a and 34b which engage the spur gears 31a1 and 31b1 are formed on a plate type tray 33 which is inserted slidably into between the trays 2a and 2b to mount and hold the disk directly.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a loading device for an optical disk or the like, and a loading mechanism for loading the optical disk such as a write-once optical disk as it is loaded and a loading mechanism for directly loading without being housed in a cartridge such as a laser disk. Is made possible.

[0002]

2. Description of the Related Art In a disk loading device of a disk player, basically, a disk is stored in a cartridge, and the cartridge is inserted and held in a tray for loading, and the disk is placed directly on the tray. There are some that are placed and loaded. For this reason, the loading device has a completely different configuration depending on whether or not the disc is accommodated in the cartridge even if the disc size is the same.

[0003]

As described above, in the conventional disc player, even if the disc size is the same, the loading mechanism is different depending on whether the disc is stored in the cartridge or not. Since it would be manufactured, the cost was high.

The present invention has been made in view of the above point, and a loading device for loading a disc stored in a cartridge can be directly loaded by adding a simple member to the loading device. The purpose is to provide.

[0005]

In order to achieve the above object, a loading device according to the present invention records and reproduces data by driving a guide moving mechanism while inserting and holding both sides of a cartridge that stores a recording medium such as an optical disk. A tray that is guided and moved to the mechanism side, a gear member that faces the cartridge holding portion side of this tray and is axially supported by partially protruding outward, and is fixed to the chassis side along the movement direction of the tray. A rack of a required length with which the protruding portion of the gear member meshes, and a rack portion slidably fitted in and held by the cartridge holding portion of the tray to mount and hold the recording medium, and the side surface of which meshes with the gear member. And a plate-shaped tray on which is formed.

[0006]

In the loading device according to the present invention constructed as described above, the plate tray is inserted into the tray and the rack portion on the side surface is meshed with the gear member. When the tray is moved by driving the guide moving mechanism in this state, the plate tray is also moved integrally, but the gear member is rotated by the meshing with the fixed rack due to the movement of the tray. Is forcibly moved by the meshing rotation of the gear member with respect to the rack portion, the movement stroke of the plate-shaped tray increases with the movement of the tray, and the loading of the recording medium placed on this plate-shaped tray is Done.

Therefore, when the plate-shaped tray is loaded with the recording medium in the pulled-out state and the tray is moved to the recording / reproducing mechanism side in this state, the plate-shaped tray is moved with a stroke larger than that of the tray. At the final stage of the movement, the recording medium placed on and held by the plate-like tray is entirely overlapped with the tray, and the recording / reproducing mechanism is the same as the recording medium which is held and moved while being accommodated in the cartridge in the tray. Loaded against.

[0008]

EXAMPLES Examples of the present invention will be described below. Prior to this description, an example of a loading device in a disc player using a disc cartridge containing an optical disc such as a write-once optical video disc will be described with reference to FIGS. Will be described.

In FIG. 1, reference numeral 1 denotes a disc cartridge, and an optical disc D is rotatably accommodated in the disc cartridge 1. 2 is a disk cartridge 1
With a tray that inserts and holds and is loaded into the disc player,
The tray 2 is composed of trays 2a and 2b having a U-shaped cross section and divided into left and right portions so that both side portions of the disc cartridge 1 are separately inserted and held. The left and right trays 2a and 2b are movably supported in the front-rear direction and the up-down direction respectively corresponding to both support side plates 3a and 3b which are vertically fixed to the chassis of the disc player so as to face each other on the left and right sides. There is. That is, the support pins 4a and 4b are horizontally projected at two front and rear positions on the outer surface of each of the trays 2a and 2b, while the guide pins are provided on both support side plates 3a and 3b in correspondence with the support pins 4a and 4b. Grooves 5a and 5b are formed. The guide groove hole 5a, 5b are vertical portion 5a ₂ successive horizontal portion 5a ₁ is formed in the front-rear direction to a predetermined length, 5b ₁ and from the rear end of the horizontal portion 5a _1, 5b ₁ downward, 5b ₂ and L form a horizontal shape, and support pins 4 of trays 2a and 2b are respectively inserted in guide groove holes 5a and 5b.
The trays 2a and 2b are separately supported by the support side plates 3a and 3b, respectively.

Then, one tray 2a and the supporting side plate 3a
Between the tray 2b and the other side tray 2b and the supporting side plate 3b, actuating plate bodies 6a and 6b for moving the trays 2a and 2b back and forth and up and down are interposed so as to be movable in the back and forth direction. There is. That is, the operating plate bodies 6a and 6b
Pins 7a and 7b are provided on the front and rear at two positions, and correspondingly to the pins 7a and 7b, slot holes 8a and 8b, which are long in the front-rear direction, are formed in the supporting side plates 3a and 3b in a predetermined length. The pins 7a and 7b are inserted into and engaged with the groove holes 8a and 8b, and the operating plate members 6a and 6b are supported by the support side plates 3a and 3b.
Each of them is movably supported in the front-rear direction.

The operation plates 6a and 6b have two front and rear positions.
The cam groove holes 9a and 9b are provided, and the cam groove hole 9 is formed.
a and 9b are inclined portions 9a that incline downward toward the front.₁,
9b ₁And this inclined portion 9a₁, 9b₁Continuous at the front and back edges of
Horizontal part 9a formed by₂, 9b₂And 9a₃, 9b₃
And the above-mentioned trays in the cam groove holes 9a and 9b.
The support pins 4a and 4b of 2a and 2b are engaged by penetrating the above.
Insert the guide side holes 3a and 3b into the guide slots 5a and 5b
Through engagement. Also, the rear water above the cam groove holes 9a and 9b
Flat part 9a₃, 9b₃And slope 9a₁, 9b₁Border part of
The support pin 4 when the actuating plates 6a and 6b are moved rearward.
Vertical edge 9a that engages and presses a and 4b_Four, 9b_FourBut
Has been formed.

Both actuating plate members 6a, 6 thus constructed
A rotating shaft 10 is supported above the supporting side plates 3a and 3b on both sides above b, and pinion gears 11a fixed to both ends of the rotating shaft 10 in correspondence with the operating plate bodies 6a and 6b. , 11b are the respective actuating plate bodies 6a, 6
The rack gear portion 12 formed in the front-rear direction at the upper end of b
It meshes with a and 12b. The rotating shaft 10 is a transmission gear group 1
3 and a belt 14 are motively connected to an operating plate driving motor 15 to constitute a driving mechanism together with these members. When the motor 15 is rotated in this driving mechanism, the rotary shaft 10 is rotated. Both operating plate members 6a and 6b are connected to the pinion gears 11a and 11b and the rack gear portions 12a and 1b.
It is structured such that it is moved in the front-rear direction in synchronization with the engagement with 2b.

A disk drive motor 17 is mounted and fixed on a bottom support plate 16 as a chassis located below the center of the trays 2a, 2b in the moving direction, and the tip of the drive shaft of the motor 17 is fixed. A turntable 18 is attached to the disc cartridge 1 when the trays 2a and 2b are lowered in a loading operation described later.
The optical disk D housed inside is mounted.

On the other hand, a chucking plate 19 for holding the optical disc D between the turntable 18 and the trays 2a, 2b so as to face the turntable 18 is movably arranged in the vertical direction. There is. The chucking plate 19 has a built-in magnet that is magnetically attracted to the iron turntable 18.
It is rotatably supported by the support bracket 21 via the bearing member 20. The support bracket 21 is supported by a top surface support plate portion 22 that straddles between the upper edge portions of the support side plates 3a and 3b on both sides so as to be vertically movable via a link mechanism 23. The chucking plate 19 is attracted to the turntable 18 to chuck the optical disc D on the turntable 18.

The operation of the disc loading mechanism constructed as described above will be explained. First, in the initial state (before the disc cartridge 1 is inserted), the support pins 4a and 4b of the trays 2a and 2b are supported by the support side plate 3a as shown in FIG. Three
b of the guide groove holes 5a, 5b located at the front ends of the horizontal portions 5a ₁ , 5b ₁ and engaged with the cam groove holes 9a, 9b.
The rear horizontal portions 9a ₃ and 9b ₃ are engaged with each other. And the disc cartridge 1 is the tray 2a, 2b
When inserted to be held operated plate member driving motor 15 is actuated to operate plate member 6a, 6b is moved backward (arrow a direction), the cam slot 9a, 9b vertical edges 9a ₄ of, 9b ₄ comes into contact with and presses the support pins 4a, 4b of the trays 2a, 2b, so that the trays 2a, 2b are moved rearward integrally with the operating plate bodies 6a, 6b, that is, the disc cartridge 1 is It is pulled into the back.

Eventually, the support pins 4a, 4b will become the support side plate 3.
Horizontal groove portions 5a ₁ and 5b of the guide groove holes 5a and 5b
_It is guided and moved from ₁ to the vertical portions 5a ₂ and 5b ₂ (the guide groove holes 5a and 5b include the horizontal portions 5a ₁ and 5b ₁ and the vertical portions 5a ₂ and
The support pins 4a and 4b are smoothly moved from the horizontal portions 5a ₁ and 5b ₁ to the vertical portions 5a ₂ and 5b ₂ because the corner portions between 5b ₂ are formed in a gentle arc shape.) Then, the operating plates 6a and 6b are further driven rearward so that the support pins 4a and 4b are moved into the cam groove holes 9a and 9b.
Being continuously pressed by the edges of the inclined portions 9a ₁ and 9b ₁ and moving downward along the vertical portions 5a ₂ and 5b ₂ of the guide groove holes 5a and 5b, that is, the trays 2a and 2b are lowered. (Fig.)

By thus lowering the trays 2a, 2b, the optical disk D in the disk cartridge 1 is placed on the turntable 18, that is, the disk loading operation is completed. Also, these trays 2a, 2
At the same time as the lowering operation of b, the chucking plate 19 is also lowered, and the chucking plate 19 is moved to the trays 2a, 2
It enters the disc cartridge 1 from between b and is magnetically attracted to the turntable 18 so that the optical disc D is clamped and held, that is, the chucking of the disc is completed. When the loading operation and the chucking operation of the disc are completed in this way, a playable state is set, that is, the drive of the disc driving motor 17 rotates the optical disc to perform reproduction (recording).

In this loading device, the trays 2a and 2b, which are separated on both sides, are respectively supported on the support side plate 3a.
And 3b, which are separately supported without being associated with each other, actuating plates 6a and 6b for horizontally moving and vertically moving the trays 2a and 2b are the rotary shaft 10 and the pin-on gears 11a and 11b which constitute a synchronous drive mechanism. Since the trays 2a and 2b are moved in synchronism with each other, the trays 2a and 2b are integrally moved in the same manner as an integrated tray to perform the loading / unloading operation of the disc.

As described above, the present invention is such that the optical disc can be directly loaded in the loading device configured to load the optical disc housed in the cartridge to the recording / reproducing mechanism side. As described above, in order to directly load the optical disc, the optical disc is placed on the plate-shaped tray pulled out from the machine body side, and loading is performed by the retracting movement of the plate-shaped tray. Therefore, in this example, the loading device described above is provided with a plate tray. As shown in FIG. 1, in this example, the lower surface portions 2a ₁ and 2 of the trays 2a and 2b are
gear member 31a at the front of the b _1, are rotatably supported to 31b. That is, the gear member 31a, 31b is large diameter spur gear 31a _1, 31b ₁ coaxial pinion 31a _2, 31
It consists b _2, is connected by a hinge 31a _3, 31b ₃ between the spur gear and the pinion. The gear members 31a and 31b are used for the lower surface portion 2 of the trays 2a and 2b.
Spur gears 31a ₁ and 31b ₁ are attached to tray 2 on a ₁ and 2b _1.
The pinions 31a ₂ and 31b ₂ are rotatably supported by the shaft portions 31a ₃ and 31b ₃ so as to face the inner sides of the a and 2b and project downward. These gear members 31a, 31b
Corresponding to the racks 32a, 32b on the side of the bottom support plate (chassis) 16 with which the pinions 31a ₂ , 31b ₂ are meshed.
The required length along the horizontal movement direction of the trays 2a, 2b,
That is, the tray 2a, 2b the supporting side plates 3a, 3b of the guide groove hole 5a, is fixed at approximately the same length as the distance traveled in the longitudinal direction along the horizontal portion 5a _1, 5b ₁ of 5b.

A plate-shaped tray 33 is slidably inserted and held between the trays 2a and 2b. This plate tray 3
3 has trays 2a, 2 on both sides 33a, 33b.
intended to be placed and held on the lower surface portion 2a _1, 2b ₁ of b,
On the side surfaces 33a ₁ and 33b ₁ of the both side portions 33a and 33b, there are gear members 31a and 31b pivotally supported by the trays 2a and 2b.
rack part 3 meshed with spur gears 31a ₁ and 31b ₁ of b
4a and 34b are formed. A disc mounting recess 33c is formed in the plate-shaped tray 33, and a notch 33 corresponding to the turntable 18 and the pickup of the recording / reproducing mechanism extends from the center of the front edge to the center of the recess 33c.
d is formed. Further, the sliders 35 are provided on the lower surface portions 2a ₁ and 2b _{1 of} the trays 2a and 2b, that is, the holding surfaces of the plate trays 33 so that the plate trays 33 can slide smoothly.
a and 35b are provided.

In this way, the plate tray 33 is replaced by the tray 2
a and 2b are inserted and held, and gear members 31a and 3a
1B, the plate-shaped tray 33 is moved further forward and pulled out from the machine body in the state before the disc loading is started, that is, in the state where the trays 2a and 2b are positioned at the front as described above. To be done. In this state, the plate tray 33 has the gear member 31a,
For the spur gears 31a ₁ and 31b ₁ of 31b, the rack portion 3
4a and 34b are meshed with each other on the front end side, and the gear member 3
1a and 31b, the pinions 31a ₂ and 31b ₂ are engaged with the fixed racks 32a and 32b on the chassis side at their front ends, and in this state, the disc D is placed on the placing recess 33c of the plate tray 33. To do.

Therefore, when the trays 2a and 2b are moved rearward, that is, in the disc loading direction as described above, the plate-like tray 33 is also moved accordingly, but the gear member 31a meshed with the rack portions 34a and 34b. , 31b
As the trays 2a, 2b move, the pinion 31a ₂ ,
The plate-shaped tray 33 is moved with respect to the trays 2a and 2b because the plate-shaped tray 33 is rotated by meshing with the fixed racks 32a and 32b on the chassis side of 31b ₂ . That is, the plate tray 3
Gear member 31 meshing with the rack portions 34a, 34b
The spur gears 31a ₁ and 31b ₁ of a and 31b are pinion 31
Since the diameter is larger than the diameters a ₂ and 31b ₂ , the plate-shaped tray 33 moves with a stroke larger than the trays 2a and 2b due to this gear ratio, and the trays 2a and 2b move to the rear end portion of the horizontal movement position described above. Plate tray 3 when it reaches
3 is inserted and positioned so as to entirely overlap the trays 2a and 2b.

For example, the spur gear 3 of the gear members 31a and 31b
1a₁, 31b₁And pinion 31a ₂, 31b₂The gear
Tray 2 by setting the ratio to 300: 180
Plate-shaped blades for a and 2b strokes of 120 to 140 mm
The stroke of the laye 33 is increased to about 250 mm.

The plate tray 33 is composed of the trays 2a, 2
The plate-shaped tray 3
The disk D on 3 is fitted and mounted on the turntable 18 and chucked by a chucking member. In this way, the loading operation of the disk D placed on the plate-shaped tray 33 is performed, and recording / reproduction is performed. When the trays 2a, 2b and the plate-shaped tray 33 are moved down, which is the final stage of the loading operation, the gear members 31a,
In the case of 31b, the pinions 31a ₂ and 31b ₂ separate downward from the tooth spaces of the fixed racks 32a and 32b on the chassis side, so that there is no obstacle to the lowering of the tray (see FIG. 3).

Although the unloading operation is the reverse of the above-mentioned loading operation, the trays 2a and 2b are raised to the horizontal movement position and the plate tray 33 is moved forward by the trays 2a and 2b during the forward movement. And the gear members 31a and 31b are reversely rotated, the trays 2a and 2b are forcibly moved earlier than the trays 2a and 2b.
With the a and 2b moved to the front end, they are largely moved forward and projected from the machine body, and the disk D placed on the plate tray 33 can be taken out.

As described above, in the present embodiment, the spur gears 31a ₁ and 31b ₁ and the pinion 31a ₂ are connected to the loading device for loading the disk stored in the cartridge.
By incorporating the gear members 31a and 31b formed of 31b ₂ and the fixed racks 32a and 32b, and forming the rack portions 34a and 34b on the plate-like tray 33 on which the discs are placed and held, a loading device for directly loading the discs can be provided. Since it can be configured, most of the mechanisms of both loading devices, that is, the trays 2a, 2b and the supporting side plates 3a, 3
b, the operating plate bodies 6a and 6b, the drive mechanism, and the like can be shared, and the cost can be reduced.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the gear members 31a, 31b of the tray 2a, the shaft support for 2b not limited to the lower surface portion 2a _1, 2b _1, may be a top surface or side surface portion, in this case the rack 32a, 32
The fixed position of b will also be changed correspondingly. Further, the gear members 31a and 31b are rotatably supported by the trays 2a and 2b on both sides, respectively. However, the gear members 31a and 31b are rotatably supported only on one side tray, and the tray on the other side simply supports the plate tray 33 so as to be slidable. You can Both side trays 2a, 2
Although b is separated, it goes without saying that the present invention can be applied to this tray by forming an integrated tray by connecting both trays 2a and 2b with a connecting member.

Although the embodiment in which the present invention is applied to the loading device of the disc player has been described above, the present invention is not limited to the disc player and can be widely applied to other devices such as a video tape recorder.

[0029]

As described above, according to the present invention, the gear member and the rack are arranged in the loading device for loading the disk stored in the cartridge, and the rack portion is formed in the plate-shaped tray for directly mounting the disk. Since the loading device for directly loading the disc is configured by meshing with the gear member by the gears, most of the mechanisms of both loading devices can be shared and the cost can be reduced.

[Brief description of drawings]

FIG. 1 is a plan view of a main part of an example of a device of the present invention.

FIG. 2 is a partially cutaway perspective view of the same example.

FIG. 3 is a vertical sectional view of the same example.

FIG. 4 is an exploded perspective view of a main part of an example of a loading device.

FIG. 5 is a vertical sectional view of the same.

FIG. 6 is a side view before the loading operation.

FIG. 7 is a side view when the loading operation is completed.

[Explanation of symbols]

2a, 2b Tray 3a, 3b Support side plate 4a, 4b Support pin 5a, 5b Guide groove hole 6a, 6b Operating plate body 9a, 9b Cam groove hole 31a, 31b Gear member 31a ₁ , 31b ₁ Spur gear 31a ₂ , 31b ₂ Pinion 32a, 32b rack 33 plate tray 34a, 34b rack section

Claims (1)

Claim: What is claimed is: 1. A tray which is guided and moved to a recording / reproducing mechanism side by driving a guide moving mechanism in a state where both sides of a cartridge for accommodating a recording medium such as an optical disk are inserted and held, and the tray. A gear member that is supported on the cartridge holding portion side and partially supported outward and is axially supported, and is fixed to the chassis side along the movement direction of the tray,
A rack having a required length with which the protruding portion of the gear member is meshed, and a recording medium that is slidably fitted and held by the cartridge holding portion of the tray to hold the recording medium, and the side surface is meshed with the gear member. A loading device for an optical disc or the like, which comprises a plate-shaped tray having a rack portion formed thereon.