JP2924290B2 - 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 includes a device for directly loading a disk on a tray and a device for storing a disk in a cartridge, and the disk cartridge is mounted on a tray. There is one that performs loading by inserting and holding.

In the latter loading apparatus for loading a disk stored in a disk cartridge, a tray for inserting and holding the disk cartridge is formed in a quadrangular hollow frame shape. The cartridge is configured to be inserted and held from the front 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.

With this configuration, the tray is moved so as to be pulled in to a predetermined position with the disk cartridge inserted and held, and then lowered to allow the disk stored in the disk cartridge to be turned by the recording / reproducing mechanism. A loading operation placed on the table is performed.

[0005]

A pair of lock levers on both sides are provided at the rear of the tray for inserting and holding the disk cartridge of the conventional disk loading device, and rollers pivotally attached to the respective front ends. The disc cartridge is locked in the tray by being engaged with the recess provided in the disc cartridge inserted into the tray.However, during loading operation, the roller of the lock lever is disengaged from the recess of the disc cartridge due to vibration or the like. In order to prevent the disc cartridge from falling out of the tray, in addition to the sensor that detects that the cartridge has been inserted into the tray, sensors corresponding to both lock levers are provided, and the rollers of the lock levers on both sides are Detects whether the disc cartridge is engaged Are adapted to the first loading operation is started by being engaged correctly engaged. Thus, the conventional disk loading device is
There are two sensors for detecting the insertion state of the disk cartridge and three optical sensors as sensors for detecting the locked state.
In addition, detection circuits corresponding to these three optical sensors are provided, respectively, so that the configuration is complicated and the cost is increased. Further, the detachment of the roller of the lock lever with respect to the disk cartridge is detected. However, there is no means for preventing this, and there is a problem that a malfunction is likely to occur.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above circumstances, and has been made in consideration of the above problem. Accordingly, the present invention is directed to a cartridge containing a recording medium such as an optical disk which can reliably perform loading / unloading operations of the recording medium while reducing the number of detection sensors. An object is to provide a loading device.

[0007]

In order to achieve the above-mentioned object, the present invention provides an apparatus wherein a cartridge containing a recording medium is inserted, a tray for holding the inserted cartridge, and both sides of the tray. And a pair of support side plates having guide slots engaged with the plurality of support pins and guiding the tray to move in the front-rear direction and the up-down direction, and to move in the front-rear direction to the pair of support side plates. A pair of operating plates having a cam slot in which the support pins of the tray are respectively engaged and supported, and the pair of operating plates are moved, and the tray is guided and moved by the support pins and the guide slots. A drive mechanism for loading the recording medium contained in the cartridge into the recording / reproducing mechanism, and a drive mechanism disposed at the rear of the tray for locking the cartridge inserted into the tray. A locking mechanism having a click member provided in the operation plate member, which is constituted by a holding portion for engaging holds the lock member in the locked state of the cartridge.

[0008]

The apparatus of the present invention having the above-described structure is operated by driving the operation plate during loading in a state where the lock member disposed at the rear of the tray locks the cartridge inserted into the tray. The cartridge is held by the holding member provided on the plate body to prevent the cartridge from coming off the tray, and the loading operation of the cartridge is always performed stably and reliably.

[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 the tray 2 in the inserted state of the cartridge 1 is provided. That is, the lock arms 25a, 2b are attached to the support pieces 2a ₂ , 2b ₂ erected at the rear ends of the extended ends 2a ₁ , 2b ₁ of the trays 2a, 2b.
25b, the shaft pins 26a, 26b
The lock arms 25a, 25b are axially mounted so as to be able to move up and down, and the free ends (front ends) of the lock arms 25a, 25b are fitted into the recesses 1a, 1b provided at the rear of the disc cartridge 1. , 27b are rotatably pivoted. The lock arms 25a, 25b
5a ₁ and 25b ₁ are formed in a rising and inclined shape, and end portions thereof and support pieces 2a ₂ and 2b protruding from the trays 2a and 2b.
By stretched tension spring 28a, and 28b between the ₂ always being rotated biased to the front end portion is moved downward.

Locking pieces 29a, 29b project from the outer surfaces of the rear half portions of the lock arms 25a, 25b in a direction facing the operating plates 6a, 6b so as to be substantially horizontal. On the other hand, the lock arms 25 are provided on the inner surfaces of the rear ends of the operation plates 6a, 6b during the initial operation of the operation plates 6a, 6b.
Pressing pieces 30a, 30b located below the locking pieces 29a, 29b of the a, 25b protrude.
On b, locking projections 30a ₁ and 30b _{1 that} are in contact with the lower surfaces of the locking pieces 29a and 29b are formed.

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), as shown in FIG. 4, the trays 2a and 2b are located on the upper front side of the support side plates 3a and 3b, and the support pins 4a and 4b are connected to the support side plates 3a and 3b.
b are engaged with the front ends of the horizontal portions 5a ₁ and 5b ₁ of the guide slots 5a and 5b, respectively, and are engaged with the cam slots 9a and 9b.
Are engaged with the rear horizontal portions 9a ₃ and 9b ₃ of the rear panel. In this state, when the disc cartridge 1 is inserted into the trays 2a and 2b (FIG. 1A) and inserted to the rear, the front ends are brought into contact with the lock rollers 27a and 27b of the lock arms 25a and 25b which are in the lying state. Then, when the cartridge 1 is pushed in strongly, the lock arms 25a, 2a
5b is pivoted in the rising direction against the biasing force of the tension springs 28a, 28b via the lock rollers 27a, 27b, and the lock rollers 27a, 27b ride on the surface of the cartridge 1 and are rolled (FIG. 1B). ), The cartridge 1 is further pushed, and the lock concave portions 1a and 1b are
7a and 27b, the lock arms 25a and 25b are operated so that the biasing force of the tension springs 28a and 28b is turned more in the falling direction, and the lock rollers 27a and 27b are turned into the lock recesses 1a and 1b. And the cartridge 1 is locked to the trays 2a and 2b (FIG. 1C).

The lock arms 25a, 25b
Is detected by the sensor. In this manner, the disk cartridge 1 is inserted into and held in the trays 2a and 2b to a predetermined position, and when this is detected, the operating plate driving motor 15 operates to move the operating plates 6a and 6b rearward (FIG. 4 arrow a direction)
The vertical edges 9 of the cam slots 9a, 9b.
a ₄ , 9b ₄ are the support pins 4a, 4b of the trays 2a, 2b
The operating plate members 6a and 6b are operated by the rear horizontal portions 9 of the cam slots 9a and 9b.
Within the length range of a ₃ , 9b ₃ , it is moved backward without being related to the trays 2a, 2b. This operating plate 6
During the movement of the lock arms 25a, 2b, the push pieces 30a, 30b protruding from the operation plate bodies 6a, 6b move.
The locking projections 30a ₁ , 30b ₁ correspond to the lower sides of the locking pieces 29a, 29b protruding from the 5b.
b. For this reason, the lock arm 25
The a and 25b are prevented from turning up, that is, turning in the direction in which the front end is lifted, so that the lock rollers 27a and 27b are immobile with the lock rollers 27a and 27b fitted in the lock recesses 1a and 1b of the cartridge 1, and the cartridge 1 is moved. The trays 2a and 2b are completely locked and held (see FIG. 1C).

In this state, the trays 2a and 2b are
The disk cartridge 1 is moved backward together with the a and 6b, that is, the disk cartridge 1 is drawn inward. Eventually support pins 4
a and 4b are guide slots 5a and 5b of the supporting side plates 3a and 3b.
Are guided from the horizontal portions 5a ₁ and 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).
By the corners between b ₁ and the vertical portion 5a _2, 5b ₂ have been made with gentle arc shape, the support pins 4a, 4b are smoothly from the horizontal portion 5a _1, 5b ₁ to the vertical portion 5a _2, 5b ₂ In this state), and in this state, the operation plates 6a, 6
b is driven rearward so that the support pins 4a, 4b
Are continuously pressed against the edges of the inclined portions 9a ₁ and 9b ₁ of the cam slots 9a and 9b, and the vertical portions 5a of the guide slots 5a and 5b are pressed.
₂ , 5b ₂ move downward, ie, trays 2a, 2b.
b will be lowered (FIG. 5). This tray 2a,
2b during the horizontal movement of the lock arm 2
The cartridges 5a and 25b are held in an immobile state, and the cartridge 1 is stably and reliably transferred without falling out of the trays 2a and 2b.

As described above, the trays 2a and 2b are moved in the horizontal direction and lowered, whereby the optical disk D in the disk cartridge 1 is placed on the turntable 18, that is, the disk loading operation is completed. The chucking plate 19 is also lowered simultaneously with the lowering operation of the trays 2a and 2b. The chucking plate 19 enters the disk cartridge 1 from between the trays 2a and 2b, and is magnetically attracted to the turntable 18. As a result, the optical disk D is brought into a state of holding the optical disk D, that is, the chucking of the optical disk D 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).

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 device of the present embodiment configured as described above, the cartridge 1 is inserted into the trays 2a and 2b, so that the lock arm 2 serves as a lock member.
The lock rollers 27a, 27b of 5a25b are
1b, the lock arms 25a, 25b are locked by the movement of the operation plates 6a, 6b, and are prevented from rotating, and the cartridge 1 is released. Since the cartridges 1 are securely locked with respect to the trays 2a and 2b, there is no possibility that the cartridge 1 may come off from the trays 2a and 2b during the loading operation.
It is moved stably and reliably, and the malfunction is eliminated. Then, the lock arms 25a and 25b are locked in a state where the lock rollers 27a and 27b are fitted to the cartridge, so that the lock rollers 27a and 27b are fitted and disengaged, that is, the cartridge 1 is placed in the trays 2a and 2b. The sensor for detecting the detachment of the cartridge 1 can be omitted. Therefore, it is sufficient to provide only one sensor for detecting the insertion of the cartridge 1 into the trays 2a and 2b, and the configuration is simplified.

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.

[0025]

As described above, in the loading device according to the present invention, the lock member for locking and holding the cartridge inserted into the tray is locked and held in the locked state with respect to the cartridge by the operation of the operating plate for driving the tray. Therefore, the cartridge is securely held on the tray, and there is no danger that the cartridge will slip out of the tray during the loading operation. The number of sensors can be reduced, such as omitting a sensor for detecting, so that the configuration is simplified and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an operation 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]

1 Cartridge 1a, 1b Lock recess 2a, 2b Tray 3a, 3b Support side plate 6a, 6b Working plate 25a, 25b Lock arm 27a, 27b Lock roller 28a, 28b Tension spring 29a, 29b Locking piece 30a, 30b Pressing piece 30a ₁ , 30b ₁ locking protrusion

Claims (1)

(57) [Claims] 1. A tray in which a cartridge containing a recording medium is inserted, a tray holding the inserted cartridge, a plurality of support pins provided to protrude on both side surfaces of the tray, and the plurality of support pins. A pair of support side plates each having a guide slot for engaging and guiding the tray in the front-rear direction and the up-down direction, and supported by the pair of support side plates movably in the front-rear direction; A pair of operating plates having a cam groove with which the support pin is engaged, and actuating the pair of operating plates to guide and move the tray by the support pins and the guide grooves and accommodated in the cartridge. A drive mechanism for loading the recording medium into the recording / reproducing mechanism, and a lock mechanism disposed at the rear of the tray with the cartridge inserted into the tray. A cartridge containing a recording medium, comprising: a lock mechanism having a lock member to be locked; and a holding portion provided on the operation plate body for locking and holding the lock member in a locked state of the cartridge. Loading equipment.