JP2924268B2 - Loading device for cartridges containing recording media - Google Patents

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 a cartridge containing a recording medium such as an optical disk in a write-once optical video disk player or the like.

[0002]

2. Description of the Related Art A disk loading device in a disk player basically loads a disk directly on a tray, and a disk is stored in a cartridge, and the cartridge is inserted into the tray. There is one that performs loading while holding it.

In the latter loading device for loading a disk stored in a cartridge, a tray for inserting and holding the cartridge is formed in a quadrangular hollow frame shape. It is configured to be inserted and held from the opening side. The tray has a pair of front and rear support pins projecting from both sides, and is supported by support side plates erected on both sides of the chassis via the support pins so as to be movable in the front-rear direction and the up-down direction. An actuating plate having a cam slot through which a support pin is engaged and supported movably in the front-rear direction with respect to both support side plates is provided between both side surfaces of the tray and both support side plates. The tray is moved in the front-rear direction and the elevating direction by moving the operation plate body in the front-rear direction by the driving mechanism.

[0004] With this configuration, the tray is moved so as to be pulled in to a predetermined position while the cartridge is inserted and held, and then lowered, and the disc stored in the cartridge is placed on the turntable of the recording / reproducing mechanism. Is performed.

[0005]

As described above, the tray for inserting and holding the cartridge of the conventional disk loading device can be moved in the front-rear direction at a predetermined interval with respect to the operating plate. When the cartridge is inserted, the loading motor is rotated in the reverse direction to move the operating plate in the unloading direction, and the tray is operated in a state of receiving the cartridge. However, in order to pick up this tray, a detection switch for detecting the initial operation of inserting the cartridge is provided,
The loading motor is operated by the operation of this detection switch.
A drive circuit for performing reverse rotation separately from driving during unloading is required, and the configuration of the disk loading device is complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has a configuration in which a tray is locked when a cartridge is inserted, so that the cartridge can be reliably inserted to a predetermined position and held without rotating the loading motor in a reverse direction. An object of the present invention is to provide a loading device for a cartridge containing a recording medium such as an optical disk.

[0007]

In order to achieve the above-mentioned object, an apparatus according to the present invention is provided with a pair of cartridges arranged on both sides of a cartridge containing a recording medium to be inserted, and holding both sides of the inserted cartridge. A pair of support side plates having a tray, a plurality of support pins provided so as to protrude from the side surfaces of the pair of trays, and guide groove holes respectively engaged with the plurality of support pins to guide the tray to move forward and backward and up and down. And a pair of operating plate members having cam groove holes which are supported by the pair of supporting side plates so as to be movable in the front-rear direction and in which the respective support pins of the pair of trays are respectively engaged, and the pair of operating plate members are moved. A drive mechanism for guiding the pair of trays by the support pins and the guide slots to load the recording medium stored in the cartridge into the recording / reproducing mechanism, and inserting the pair of trays into the cartridge Is constructed by comprising a are unlocked state of the pair of tray by the pair of operating plates member is movable lock device that enables movement pair of trays by the drive mechanism while locked. Further, in the above configuration, the lock mechanism is disposed at the rear side of the tray, and is rotated by a position where the lock mechanism comes into contact with the tray and locks the tray and the pair of operation plates are moved by the drive mechanism, so that the lock mechanism contacts the tray. It comprises a pair of lock members from which contact is released.

[0008]

In the apparatus of the present invention thus constructed, the tray is locked by the lock means in the initial state of the loading operation, that is, before the cartridge is inserted into the tray, and the cartridge is securely moved to the predetermined position. Can be inserted. When the cartridge is inserted into the tray to a predetermined position, the operating plate is driven and moved by the driving mechanism, and in this initial movement state, the locking means is unlocked with respect to the tray, whereby the tray is unlocked. Then, the operation plate is moved along with the operation of the operation plate to perform a loading operation.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. The present invention is applied to a loading apparatus in a disk player using a disk cartridge containing an optical disk such as a write-once optical video disk. It was done.

In FIG. 1, reference numeral 1 denotes a disk cartridge, in which an optical disk D is rotatably housed. 2 is a disk cartridge 1
Insert and hold the tray to load it into the disc player.
In this embodiment, the tray 2 is composed of trays 2a and 2b which are divided right and left in a U-shaped cross section so as to insert and hold both sides of the disc cartridge 1 separately. The left and right trays 2a and 2b are supported on the left and right sides of the chassis of the disc player by two support side plates 3a.
And 3b are respectively supported so as to be movable in the front-rear direction and the vertical direction. That is, the trays 2a, 2b
Support pins 4a, 4
b is projected horizontally, while both supporting side plates 3a, 3b
Have guide slots 5a, 5 corresponding to the support pins 4a, 4b.
b is drilled. The guide slots 5a, 5b are formed with horizontal portions 5a ₁ ,
5b ₁ and form the lateral L-shape by a vertical portion 5a _2, 5b ₂ consecutive downward from the rear end of the horizontal portion 5a _1, 5b _1,
The trays 2a, 2b are respectively inserted into the guide slots 5a, 5b.
The supporting pins 4a and 4b are inserted and engaged, and the trays 2a and 2b are separately supported by the supporting side plates 3a and 3b, respectively.

Then, one tray 2a and the supporting side plate 3a
And between the other tray 2b and the supporting side plate 3b, operating plates 6a and 6b for moving the trays 2a and 2b in the front-rear direction and the up-and-down direction are provided so as to be movable in the front-rear direction. Have been. That is, the operating plate 6
a and 6b are provided with two pins 7a and 7b at the front and rear,
Slots 8a, 8b long in the front-rear direction are formed in the support side plates 3a, 3b at predetermined lengths corresponding to the pins 7a, 7b, and the pins 7a, 7b are inserted into the slots 8a, 8b. The operating plates 6a and 6b are combined with the supporting side plate 3
a and 3b are respectively movably supported in the front-rear direction.

The operating plates 6a and 6b have two front and rear portions.
Cam groove holes 9a and 9b are formed.
a and 9b are inclined portions 9a which are inclined downward toward the front.₁,
9b ₁And this inclined portion 9a₁, 9b₁Continuous at the front and rear ends of
Horizontal part 9a formed_Two, 9b_TwoAnd 9a_Three, 9b_Three
The cam slots 9a and 9b have the above-described trays.
The support pins 4a, 4b of the 2a, 2b
Into the guide slots 5a, 5b of the supporting side plates 3a, 3b as shown in FIG.
Through engagement. Also, the rear water above the cam slots 9a, 9b
Flat part 9a_Three, 9b_ThreeAnd inclined part 9a₁, 9b₁Border
When the operating plates 6a, 6b are moved backward,
vertical edge 9a which engages and presses a and 4b_Four, 9b_FourBut
Is formed.

The two operating plates 6a, 6 thus constructed
Above b, a rotating shaft 10 is supported so as to straddle between the supporting side plates 3a and 3b on both sides, and a pinion gear 11a fixed to both ends of the rotating shaft 10 in correspondence with both operating plates 6a and 6b. , 11b are connected to the respective operating plates 6a, 6
a rack gear portion 12 formed at the upper end of
a, 12b. The rotating shaft 10 is the transmission gear group 1
A driving mechanism is constructed with these members by being motively connected to a motor 15 for driving the operating plate through the belt 3 and the belt 14. When the motor 15 is rotated in this driving mechanism, the rotating shaft 10 rotates. Then, both operating plates 6a, 6b are connected to the pinion gears 11a, 11b and the rack gears 12a, 1b.
2b to be moved in the front-rear direction in synchronism with engagement.

A disk drive motor 17 is mounted and fixed on a bottom support plate 16 as a chassis, which is located below the center in the moving direction of the trays 2a and 2b. 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 accommodated in the inside is mounted.

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

In the loading device configured as described above, in this example, a lock means for locking and holding the tray 2 when the cartridge 1 is inserted is provided.
That is, the support plate 3a, the support pieces 3a _1, 3b ₁ which is horizontally projected at the upper edge of 3b, tray 2a, 2b supporting side plate 3a before starting the loading operation, in a state that is positioned on the front side upper portion between 3b A substantially L-shaped lock arm 25a, 25b is rotatable in the horizontal direction corresponding to the rear end side of both trays 2a, 2b so that a shaft pin 26
a, 26b. This lock arm 25
At one end, engagement rollers 27a, 27b are abutted and engaged with the rear ends of the trays 2a, 2b at one end, and the operating plate bodies 6a, 6b are provided at the side edges of the other half. Abutment portion 28a,
28b are formed. And this lock arm 2
Reference numerals 5a and 25b denote engagement rollers 27a and 27b in tray 2.
The spring members 29a and 29b are rotationally displaced so as to abut and engage the rear end edges at the above-mentioned positions a and 2b.

Next, the operation of the disk loading mechanism configured as described above will be described. First, in the initial state (before the disk cartridge 1 is inserted), the trays 2a and 2b are supported by the supporting side plates 3a and 3b as shown in FIGS.
Horizontal portion 5a ₁ of the front upper positioned that with the support pins 4a, 4b support side plates 3a, 3b of the guide groove hole 5a, 5b of 5
b ₁ is located at the front end and engaged with the cam slot 9
a, it is in a state engaged with the rear horizontal portion 9a _3, 9b ₃ of 9b. In this state, the trays 2a and 2b have their rear ends engaged with the engaging rollers 27a and 27b of the lock arms 25a and 25b as described above, and are locked and held.
The disk cartridge 1 is inserted into the locked trays 2a and 2b. When the disc cartridge 1 is inserted into the trays 2a and 2b to a predetermined position and held, the operating plate driving motor 15 is operated to move the operating plates 6a and 6b backward (in the direction of arrow a). The vertical edges 9a ₄ and 9b _{4 of the} cam slots 9a and 9b are
The operating plates 6a, 6b are operated by the lengths of the rear horizontal portions 9a ₃ , 9b ₃ of the cam slots 9a, 9b. Is moved backward without being related to the trays 2a and 2b. In the movement of the operating plates 6a, 6b,
The trailing edge abuts against and presses against the contact portions 28a, 28b of the other half of the lock arms 25a, 25b, whereby the lock arms 25a, 25b are disengaged from the spring members 29a, 29b.
b, the engagement rollers 27a, 27b at one end are separated from the trailing edges of the trays 2a, 2b.
The locks of a and 2b are released (two-dot chain line in FIG. 1). For this reason, the trays 2a and 2b are moved rearward integrally with the operation plate bodies 6a and 6b, that is, the disk cartridge 1 is drawn inward. Eventually, the support pins 4a and 4b will be
a, 3b of the guide groove hole 5a, 5b of the horizontal portion 5a _1, 5b
₁ to the vertical portions 5a ₂ and 5b ₂ (the guide slots 5a and 5b are connected to the horizontal portions 5a ₁ and 5b ₁ and the vertical portions 5a ₂ and 5a ₂₎ .
Since the corners between 5b ₂ are formed in a gentle arc, the support pins 4a, 4b are smoothly moved from the horizontal portions 5a ₁ , 5b ₁ to the vertical portions 5a ₂ , 5b ₂ ). Further, the operating plates 6a, 6b are further driven rearward, so that the support pins 4a, 4b are connected to the cam slots 9a, 9b.
Is continuously pressed by the edges of the inclined portions 9a ₁ and 9b ₁ of the guide grooves 5a and 5b and moves downward along the vertical portions 5a ₂ and 5b ₂ of the guide slots 5a, 5b, that is, the trays 2a and 2b are lowered. (FIG. 6). During this operation, the lock arm 25
Since the contact portions 28a and 28b of the other half are in sliding contact with the inner surfaces of the operation plate members 6a and 6b, the members a and 25b are held in the above-described rotational state.

As the trays 2a and 2b are lowered, the optical disk D in the disk cartridge 1 is placed on the turntable 18, that is, the disk loading operation is completed. The trays 2a, 2
The chucking plate 19 is also lowered at the same time as the lowering operation of the tray 2a.
b, the disk cartridge 1 enters the disk cartridge 1 and is magnetically attracted to the turntable 18 to hold the optical disk D under pressure, that is, the chucking of the disk is completed. When the loading operation and the chucking operation of the disk are completed in this way, the disk becomes playable, that is, the optical disk D is rotated by the driving of the disk driving motor 17 to perform reproduction (recording).

After the reproduction (recording) of the optical disk D is performed in this manner, the unloading operation is performed by driving the operation plate driving motor 15 in the reverse direction so that the operation plates 6a and 6b move forward. The tray 2
a and 2b move upward by the reverse operation to the above-mentioned operation,
That is, it is raised and moved forward integrally with the operation plates 6a and 6b. The trays 2a and 2b and the working plate 6
When a and 6b are moved to the forefront, operating plates 6a and 6b
The lock arms 25a, 25b are released from the pressing rotation by the lock arms 25a, 25b, whereby the lock arms 25a, 25b are rotated by the biasing force of the spring members 29a, 29b, and the engagement rollers 27a, 27b at one end are moved to the trays 2a, 2b. And the trays 2a and 2b are locked and held in a state where they are located on the upper front side of the supporting side plates 3a and 3b. In this state, the disk cartridge 1 is taken out of the trays 2a and 2b.

In the loading apparatus constructed as above, the trays 2a and 2b separated on both sides are used.
Are independently supported by the supporting side plates 3a and 3b, respectively, without being associated with each other. The operating plates 6a and 6b for horizontally moving and vertically moving the trays 2a and 2b are connected to a rotating shaft 10 constituting a synchronous drive mechanism. And the pin-on gear 11a,
11b, the tray 2 is moved synchronously.
A and 2b are moved integrally as in the case of an integrated tray, so that loading and unloading operations of the disk are performed.

According to the loading apparatus of the present embodiment configured as described above, when the disk cartridge 1 is inserted into or removed from the trays 2a and 2b, the trays 2a and 2b are removed.
b is the chassis side via the lock arms 25a and 25b,
That is, the disk cartridge 1 is locked by the supporting side plates 3a and 3b and held in an immobile state, so that the disc cartridge 1
It is possible to stably and surely insert and hold it to a predetermined position with respect to b, and it is possible to take out smoothly. When the disc cartridge 1 is inserted, the trays 2a and 2b are rotated in the reverse direction by the loading motor.
It is not necessary to operate a and 2b in reverse, so that the configuration is simplified and significant cost reduction is achieved.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment, and can be variously modified without departing from the gist of the present invention. For example, the tray is composed of divided trays 2a and 2b each having a U-shaped cross section for separately inserting and holding both side portions of the disk cartridge, but a tray formed in the shape of an integral quadrilateral hollow frame can be used. . Although the embodiment in which the present invention is applied to the loading device of the disc player has been described, the present invention is not limited to the disc player and can be widely applied to, for example, a video tape recorder and the like.

[0023]

As described above, in the loading apparatus according to the present invention, the tray is locked with respect to the chassis side by the locking means when the cartridge is inserted and removed, and is held immovably. It can be inserted and held stably and reliably up to a predetermined position, can be taken out smoothly, and the loading and unloading operations of the magnetic recording medium stored in the disk cartridge can be done reliably and smoothly. Can be. Further, the configuration is simplified, the number of parts is reduced, and the cost can be reduced as compared with the conventional case where the tray is reversely operated so that the loading motor is rotated in the reverse direction to reach the cartridge.

[Brief description of the drawings]

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

FIG. 2 is an exploded perspective view of a main part of an example of the apparatus of the present invention.

FIG. 3 is a longitudinal sectional view of the same.

FIG. 4 is a side view before a loading operation.

FIG. 5 is a side view when the loading operation is completed.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cartridge 2a, 2b Tray 3a, 3b Support side plate 4a, 4b Support pin 5a, 5b Guide slot 6a, 6b Working plate 9a, 9b Cam slot 25a, 25b Lock arm 27a, 27b Engagement roller 29a, 29b Spring member

Claims (2)

(57) [Claims] 1. A pair of trays arranged on both sides of a cartridge in which a recording medium to be inserted is accommodated, holding both sides of the inserted cartridge, and provided so as to protrude from side surfaces of the pair of trays. A plurality of support pins, a pair of support side plates each having a guide slot that is engaged with the plurality of support pins and guides the tray to move in the front-rear direction and the up-down direction; and the pair of support side plates move in the front-rear direction. A pair of operating plates that are supported as possible and have a cam slot into which the support pins of the tray are respectively engaged, and that the pair of operating plates are moved to move the pair of trays to the support pins. A drive mechanism for guiding the guide medium by the guide slot and loading the recording medium stored in the cartridge into the recording / reproducing mechanism; and And a lock mechanism that allows the pair of trays to be moved by releasing the locked state of the pair of trays by moving the pair of operation plates by the drive mechanism. A loading device for a cartridge containing a recording medium. 2. The lock mechanism is disposed at a rear side of the tray, and is rotated by a position where the lock mechanism comes into contact with the tray to lock the tray and the pair of operation plates are moved by the drive mechanism. 2. The cartridge loading device according to claim 1, further comprising a pair of lock members that are released from contact with the tray.