JPH04321969A - Loading device for optical disk or the like - Google Patents

Abstract

PURPOSE:To decrease the number of parts by eliminating the phase-matching of the right and left supporting part with the cartridge holding mechanism of the disk of a loading device in a disk player as the right and left separate type. CONSTITUTION:A tray 2 to insert and hold a cartridge containing a disk is formed as a pair of trays 2a and 2b on both sides so as to hold only the both side parts of the cartridge. Both trays 2a and 2b are attached to a supporting moving mechanism constituted of supporting side plates 3a and 3b having guide groove holes 5a and 5b and operation plate bodies 6a and 6b having cam grooves 9a and 9b separately, and a synchronous driving mechanism constituted of a rotation shaft 10 and pinion gears 11a and 11b incorporated between both operating plate bodies 6a and 6b.

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 loading a recording medium such as an optical disk contained in a cartridge in, for example, a write-once optical video disk player.

0002

[Prior Art] There are two types of disk loading devices for disk players: one that loads the disk by placing the disk directly on the tray, and the other that stores the disk in a cartridge and inserts the cartridge into the tray. There are some that hold and load.

In the latter loading device for loading a disc stored in a cartridge, the tray for inserting and holding the cartridge is formed in the shape of a quadrilateral hollow frame, and the cartridge is placed in the hollow frame-shaped tray with the front side facing up. It is configured to be inserted and held from the opening side. This tray has a pair of front and rear support pins protruding from both sides, and is supported movably in the front and rear and up and down directions by support side plates erected on both sides of the chassis via these support pins. A cam slot in which a support pin is engaged is provided between both side surfaces of the tray and both supporting side plates, and an actuating plate body is arranged to be movably supported in the front and back direction with respect to both supporting side plates. The tray is configured to be moved in the front and rear direction and in the vertical direction by moving the actuating plate body in the front and rear direction using a drive mechanism.

With this structure, the tray is moved to a predetermined position while inserting and holding the cartridge, and then is lowered and the disc stored in the cartridge is placed on the turntable of the recording and reproducing mechanism section. A loading operation is performed in which the device is placed on the device.

[0005]

[Problems to be Solved by the Invention] As described above, the tray for inserting and holding the cartridge of the conventional disk loading device is formed in the shape of a quadrilateral hollow frame, and the movement of the actuating plate body engaged on both sides of the tray causes the tray to insert and hold the cartridge. Since it is moved in the front-rear direction and in the vertical direction, it is necessary to match the phase of the engaging part with respect to the moving plate on both sides, but it is difficult to match the phase due to misalignment of the support pins on both sides, so it is difficult to assemble at the time of manufacturing. Moreover, since the tray itself is formed in the shape of a hollow frame, the number of parts is large, resulting in high cost, as well as being heavy and requiring a large driving force.

The present invention has been made in view of the above problems, and is a method for loading optical discs, etc., which eliminates the phase alignment of the moving mechanisms on both sides of the tray and reduces the number of parts of the tray itself, thereby reducing costs. The purpose is to provide equipment.

[0007]

[Means for Solving the Problems] In order to achieve the above object, the device of the present invention includes a pair of trays on both sides that are separately inserted and held on both sides of a cartridge in which a recording medium such as an optical disk is stored, and a pair of trays on both sides. A pair of support side plates on both sides have guide slots to which support pins protruding from each side are engaged and guide the movement of both trays in the front-rear direction and the up-down direction, respectively; A pair of actuating plates on both sides are movably supported and have cam slots to which respective support pins of both trays are engaged. The tray is simultaneously guided and moved so that the recording medium stored in the cartridge is loaded into the recording/reproducing mechanism section.

[0008]

[Operation] In the device of the present invention constructed as described above, the tray for inserting and holding the cartridge is divided into both sides so as to hold only both sides of the cartridge. After this assembly, the synchronous drive mechanism is assembled to both actuating plates, so there is no need to align the phase between the trays on both sides and the support movement mechanism, simplifying the assembly process. Moreover, since the middle part of the tray itself is omitted, the number of parts can be reduced, and costs can be reduced.

[0009]

[Embodiment] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In this embodiment, the present invention is applied to a loading device in a disc player that uses a disc cartridge containing an optical disc such as a write-once optical video disc. This is what I did.

In the figure, reference numeral 1 denotes a disk cartridge, and an optical disk D is rotatably housed within this disk cartridge 1. As shown in FIG. Reference numeral 2 denotes a tray into which the disc cartridge 1 is inserted and held and loaded into the disc player, and this tray 2 has a U-shaped cross section and is divided into left and right trays 2a and 2b so as to insert and hold both sides of the disc cartridge 1 separately. It consists of This left and right tray 2
The support side plates 3a and 2b are supported so as to be movable in the front-rear direction and the up-down direction, respectively, in correspondence with support side plates 3a and 3b which are erected and fixed to the chassis of the disc player on both left and right sides. That is, support pins 4a and 4b are horizontally protruded on the outer surface of each of the trays 2a and 2b at two locations on the front and back, while support pins 4 are provided on both support side plates 3a and 3b.
Guide slots 5a and 5b are bored corresponding to holes a and 4b. The guide slots 5a, 5b are formed into a horizontal L-shape by horizontal portions 5a1, 5b1 formed to a predetermined length in the front-rear direction, and vertical portions 5a2, 5b2 continuing downward from the rear ends of the horizontal portions 5a1, 5b1. The support pins 4a and 4b of the trays 2a and 2b are inserted into and engaged with the guide slots 5a and 5b, respectively, so that the trays 2a and 2
b are separately supported by supporting side plates 3a and 3b.

[0011] One tray 2a and the supporting side plate 3a
and between the other tray 2b and the support side plate 3b, actuating plates 6a and 6b are interposed so as to be movable in the front-back direction for moving the trays 2a and 2b back and forth and up and down, respectively. There is. That is, these actuating plates 6a, 6b
Pins 7a and 7b are provided protrudingly at two locations in the front and rear, and corresponding to the pins 7a and 7b, slots 8a and 8b which are long in the front and back direction are formed in the support side plates 3a and 3b, respectively, with a predetermined length. , pins 7a and 7b are inserted into and engaged with the slots 8a and 8b, and the actuating plates 6a and 6b are connected to the supporting side plates 3a and 3b.
are supported so as to be movable in the front and rear directions.

Cam slot holes 9a and 9b are bored in two places in the front and rear of the operating plates 6a and 6b.
a, 9b are inclined portions 9a1 that slope low toward the front;
, 9b1, and horizontal portions 9a2, 9b2, and 9 continuously formed at the front and rear ends of the inclined portions 9a1, 9b1.
a3, 9b3, and these cam slot holes 9a, 9b
The support pins 4a and 4b of the trays 2a and 2b described above are inserted through and engaged with the guide slots 5a and 5b of the support side plates 3a and 3b as described above. Also, the cam slots 9a, 9
Upper rear horizontal portions 9a3 and 9b3 of b and inclined portion 9a
1 and 9b1 are formed with vertical edges 9a4 and 9b4 that engage and press the support pins 4a and 4b when the actuating plates 6a and 6b move rearward.

Both operating plates 6a, 6 constructed in this manner
Above b, a rotating shaft 10 is pivotally supported so as to straddle between the supporting side plates 3a and 3b on both sides, and a pinion gear 11a is fixed to both ends of this rotating shaft 10 in correspondence with both operating plates 6a and 6b. , 11b are the respective actuating plates 6a, 6
Rack gear portion 12a formed in the front-rear direction at the upper end of b.
, 12b. The rotating shaft 10 is a transmission gear group 13
and is dynamically connected to the actuating plate drive motor 15 via the belt 14 to constitute a drive mechanism together with these members, and in this drive mechanism, when the motor 15 is rotated, the rotating shaft 10 is rotated. Both operating plates 6a, 6b are connected to pinion gears 11a, 11b and rack gear parts 12a, 12.
It has a structure in which it is moved in the front and back direction in synchronization with the mesh with b.

Further, a disk drive motor 17 is mounted and fixed on a bottom support plate 16 serving as a chassis, located below the center of the trays 2a and 2b in the direction of movement. A turntable 18 is attached to the disc cartridge 1 when the trays 2a and 2b are lowered in a loading operation to be described later.
The optical disc D stored therein is placed thereon.

On the other hand, above the trays 2a and 2b, facing the turntable 18, a chucking plate 19 for holding the optical disc D between the turntable 18 and the turntable 18 is arranged so as to be movable in the vertical direction. There is. This 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. This support bracket 21 is vertically movably supported via a link mechanism 23 on a top support plate portion 22 that extends between the upper edges of the support side plates 3a and 3b on both sides. The chucking plate 19 is attracted to the turntable 18 and chucks the optical disc D on the turntable 18.

To explain the operation of the disc loading mechanism constructed as described above, 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 connected to the support side plate 3a as shown in FIG. ,3
Horizontal portions 5a1 and 5b1 of guide slots 5a and 5b of b
The cam slot 9a is located at and engaged with the front end of the
It is in a state of being engaged with the rear horizontal portions 9a3 and 9b3 of 9b. And disk cartridge 1 is tray 2a,
2b, the actuating plate driving motor 15 is activated and the actuating plates 6a, 6b are moved rearward (in the direction of arrow a).
b4 comes into contact with and presses the support pins 4a and 4b of the trays 2a and 2b, so that the trays 2a and
2b is moved rearward integrally with the actuating plates 6a and 6b,
That is, the disk cartridge 1 is pulled inward. Eventually, the support pins 4a, 4b move from the horizontal parts 5a1, 5b1 of the guide slots 5a, 5b of the support side plates 3a, 3b to the vertical parts 5.
a2, 5b2 (guide slots 5a, 5
b is the horizontal part 5a1, 5b1 and the vertical part 5a2, 5b
2, the support pins 4a, 4b have horizontal portions 5a1, 5b1.
In this state, the actuating plates 6a, 6b are further driven rearward to move the support pins 4a, 4b into the cam slots 9a.
, 9b are continuously pressed by the edges of the inclined portions 9a1, 9b1 of the guide slots 5a, 5b, and the vertical portions 5a2, 5b2 of the guide slots 5a, 5b.
In other words, the trays 2a and 2b are lowered (FIG. 4).

By lowering the trays 2a and 2b in this manner, the optical disc D in the disc cartridge 1 is placed on the turntable 18, ie, the disc loading operation is completed. Also, this tray 2a, 2
At the same time as the lowering operation of the chucking plate 19, the chucking plate 19 is lowered and the trays 2a and 2
It enters the disk cartridge 1 through the space between b and is magnetically attracted to the turntable 18, thereby holding the optical disk D under pressure, that is, chucking of the disk is completed. When the disk loading operation and chucking operation are completed in this manner, the optical disk becomes ready for play, and the optical disk is rotated by the drive of the disk drive motor 17 to perform reproduction (recording).

In the loading device constructed as described above, the trays 2a and 2b separated on both sides are supported separately by supporting side plates 3a and 3b without being related to each other. The operating plates 6a and 6b, which are moved horizontally and vertically, are driven by a rotating shaft 10 and pin-on gears 11a and 11b, which constitute a synchronous drive mechanism.
Trays 2a and 2 are moved synchronously by
b is integrally moved in the same manner as an integrated tray to perform disk loading and unloading operations.

As described above, according to the loading device of this embodiment, the tray for inserting and holding the disk cartridge is separated into both sides to form the double-sided trays 2a and 2b. ,3
Since the assembly to the trays 2a and 2b is performed separately with the actuating plates 6a and 6b interposed, the trays 2a and 2b
There is no need to adjust the phase between the actuating plates 6a and 6b on both sides, and both actuating plates 6a and 6b are connected to the trays 2a and 2b, respectively.
It is only necessary to mesh the pinion gears 11a, 11b fixed to the rotating shaft 10 with the rack gears 12a, 12b formed on the actuating plates 6a, 6b in a state where they are positioned relative to each other. The steps required for assembly are reduced. Further, since the middle part of the tray is omitted, the number of parts is reduced compared to conventional integrated trays, and the cost of parts can be kept low, resulting in a significant cost reduction.

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

[0021]

As described above, in the loading device according to the present invention, since the trays for inserting and holding the cartridge are formed separately on both sides, the trays on both sides can be separated from each other without being phased with respect to the support operation member. This makes the assembly process easier and reduces the amount of work required, and the tray has a structure that eliminates the middle section, which reduces the number of parts and costs compared to conventional methods. It is possible to reduce the cost, and it also has the effect of reducing the weight of the tray and saving the labor of the drive mechanism.

[Brief explanation of drawings]

FIG. 1: An exploded perspective view of essential parts of an example of the device of the present invention.

[Figure 2]
Same, longitudinal sectional view

[Figure 3] Side view before loading operation

[Figure 4] Side view when loading operation is completed

[Explanation of symbols]

1 Cartridge 2a, 2b Tray 3a, 3b Support side plate 4a, 4b Support pin 5a, 5b Guide slot 6a, 6b Operating plate body 9a, 9b Cam slot 10 Rotation axis 11a, 11b pinion gear 12a, 12b Rack gear part

Claims (1)

[Claims] Claim 1: A pair of trays on both sides that separately insert and hold both sides of a cartridge in which a recording medium such as an optical disk is housed, and a support pin protruding from each side of both trays are engaged, a pair of support side plates on both sides having guide slots for guiding the trays in the front-rear direction and up-down direction; and support pins of the trays each supported by the support side plates so as to be movable in the front-rear direction separately; a pair of actuating plates on both sides having cam slots to be engaged, and by moving both the actuating plates synchronously by a synchronous drive mechanism, both trays are simultaneously guided and housed in the cartridge. A loading device for an optical disc or the like, characterized in that a recording medium is loaded into a recording/reproducing mechanism section.