JPH06103570B2 - Disk cartridge loading device - Google Patents

Description

The present invention relates to a disk cartridge loading device.

(Prior Art) Conventionally, various mechanisms are known as a loading mechanism for holding a disc cartridge in a reproducing state when the disc cartridge storing a compact disc or the like is set in a recording / reproducing apparatus and is reproduced. .

Known loading mechanisms include a cassette holder system, a front loading system, and a linear skating system.

Among these methods, the linear skating method is
Unlike the front loading method, the cassette carrier is not pulled out forward from the front surface of the apparatus, and the disk cartridge may be inserted from the mounting opening. Therefore, it is necessary to position and hold the disc cartridge when the disc cartridge is inserted. As this positioning / holding means, for example, there is one in which a click mechanism is provided at the position where the disc cartridge is inserted and the click mechanism is held when the disc cartridge is inserted.

(Problems to be Solved by the Invention) The above-described linear skating system is a click mechanism that mainly uses an urging force such as a spring, and is accompanied by a click feeling when setting and removing a disc cartridge. For this reason, there is a feeling of discomfort in loading and unloading the disc cartridge, and the operability is not always good.

Therefore, the present invention has been made to solve the above problems, and an object of the present invention is to provide a loading device for a disc cartridge that can smoothly set and remove the disc cartridge.

(Means for Solving the Problems) The present invention has the following configuration in order to solve the above problems.

That is, a slide holder into which a disc cartridge accommodating a compact disc is inserted, a moving device that moves the slide holder together with the disc cartridge from an insertion position of the disc cartridge to a reproduction position when the disc cartridge is inserted, In a loading device for a disc cartridge including a drive device that drives a moving device, a disc cartridge that is rotatably arranged facing the rear end side of the slide holder and is always biased inward by a spring is inserted. A pair of lockable hooks, detection means provided on the slide holder, for detecting that the disc cartridge has been inserted to a predetermined position, and outputting a detection signal for operating the drive device, and the moving device side. Is installed on the slide When the disk is at the insertion position of the disk cartridge, it abuts against each of the pair of hooks and presses them to open the pair of hooks outwardly against the urging force of the spring to bring them into an unlocked state. When the slide holder moves from the insertion position to the playback position when the cartridge is inserted, the pressing piece is separated from the pair of hooks to release the pressing force, and the pair of hooks locks the disk cartridge with a pressing piece. Characterize.

(Operation) Next, the operation will be described.

When the disc cartridge is inserted into the slide holder at a predetermined position, the detection means outputs a detection signal for operating the drive device. The driving device receives the detection signal and starts driving the moving device. When the moving device starts to move, the slide holder is in the insertion position of the disc cartridge, and when the disc cartridge is in the non-insertion state, it abuts against the pair of hooks and presses the pair of hooks against the biasing force of the spring. When the slide holder moves from the insertion position to the playback position, the pressing piece that has opened to the outside and is in the unlocked state also starts moving, and is released from the pair of hooks to release the pressing force. Lock the disc cartridge with the hook.

(Examples) Hereinafter, preferred examples of the present invention will be described in detail with reference to the accompanying drawings.

In FIGS. 1 to 3, 10 is a disk cartridge 11
Is a slide holder for holding the. This slide holder
The disc cartridge 11 held by 10 is set in a reproducing state. Side surfaces 10a, 10a are erected on opposite side edges of the slide holder 10. On each side 10a,
The guide pins 13 and 13 project to the front and back.

Reference numeral 14 denotes a mechanical chassis as a base, which is provided with a turntable 15 for holding and rotating a compact disc or a pickup 16 driven by a linear motor to read data recorded on the compact disc.

Guide plates 18 are fixed and erected on opposite side surfaces of the mechanical chassis 14. The guide plate 18 is fixed to the front and rear by fixing pins 19 and 19 with a slight space provided between the guide plate 18 and the side surface of the mechanical chassis 14.

Each guide plate 18 is provided with L-shaped guide grooves 18a, 18a that are laid sideways in the front and rear portions. Then, the guide pin 1 on each side surface 10a of the slide holder 10 is inserted into each guide groove 18a of the guide plate 18.
3 and 13 are inserted respectively. A ring 20 for preventing slipping off is fixed to the tip of each guide pin 13. The guide plate 18 supports the slide pin 10 so that the slide holder 10 moves from the insertion position to the reproduction position by the guide pins 13, 13 being guided along the guide groove 18a.

A slidable slide plate 24 is arranged between each side surface 10a of the slide holder 10 and the guide plate 18.

The slide plate 24 includes guide pins for the slide holder 10.
A guide elongated hole 26 into which 13 is inserted is correspondingly provided.
This long guide hole 26 has a holding portion 26a which is located on the lower side of the front side.
And a holding portion 26a that is positioned higher on the rear side, and a slanting inclined portion 26c in the middle. The holding portions 26a and 26b are formed parallel to the horizontal portion 18b of the guide groove 18a. Also,
Long holes 27 are provided at corresponding positions so that the movement of the slide plate 24 is not hindered by the fixing pins 19, 19.

Further, rack pieces 28 and 29 forming a part of the drive device are fixed to the opposing surface of the rear end of the slide plate 24. One rack piece 28 has teeth 28a ..., 28b on the bottom and side, respectively.
... is engraved. On the other rack piece 29,
The teeth 29a ... are engraved only on the bottom surface. Slide plate 2
4 has a function of moving the slide holder 10 by pressing the guide pin 19 with the inner edge of the elongated guide hole 26 when driven by the driving device.

The above configuration is summarized as follows. Two guide plates 18 are fixed to both side surfaces of the mechanical chassis 14 with fixing pins 19 with a slight gap between each side surface, and slide plates are provided in the gap portions. 24 are arranged with the fixing pins 19 inserted into the long holes 27 provided in the slide plate 24.
The slide holder 10 is arranged between the slide plates 24, and the guide pins 13 of the slide holder 10 are inserted into both the guide elongated holes 26 of the slide plate 24 and the guide grooves 18a of the guide plates.

Here, the drive device of the slide plate 24 will be described in detail with reference to FIG. Incidentally, FIG. 6 is a rear view of the mechanical chassis 14.

Rack pieces 28, 29 fixed to the rear end of the slide plate 24 are arranged along the back surface of the mechanical chassis 14. One rack piece 28 extends to the back side of the mechanical chassis 14 from a guide opening 14a formed in the rear end of the mechanical chassis 14 and opening in the front-rear direction. On the other rack piece 29, the side surface of the rear end corner of the mechanical chassis 14 is cut out, and a slidable slide section 14b is formed on this back surface portion.

A drive motor 30 forming a part of the drive device is provided on the back surface of the mechanical chassis 14, and the rotational force of the drive shaft 30a of the drive motor 30 forms a part of the drive device including a worm gear. Side teeth 28 of rack piece 28 through row 32
It is transmitted to b ... Therefore, when the drive motor 30 is driven, the slide plate 24 to which the rack piece 28 is attached is driven back and forth.

Further, gears 32, 33 that mesh with the teeth 28a, ... And 29a on the back surface of each rack piece 28, 29 are fixed to both ends of the transmission shaft 34. The transmission shaft 34 is axially supported by bearings 35, 35 at a midway portion. Therefore, when one of the rack pieces 28 is driven, the gear 3 that meshes with the teeth 28a of the rack piece 28.
2, the teeth 29a of the rack piece 29 through the transmission shaft 34 and the gear 33
.. and the rack piece 29 is driven. Therefore, the two slide plates 24 move back and forth in synchronization.

A limit switch 42 is provided at the forward position of the rack piece 28, and a limit switch 43 is provided at the forward position of the rack piece 28.
Is turned on and the driving motor 30 is stopped by a known electric mechanism.

As shown in FIGS. 1 and 2, the slide holder
A pair of hooks 36, 36 are provided facing inward at both corners of the rear edge of 10. Each hook 36 is biased inward by a spring 37 to insert the disk cartridge 11 and drive motor.
When the slide plate 24 moves rearward when the rotation operation of the disk 30 starts, the hooks 36, 36 are engaged with the engaging portion (not shown) of the disk cartridge 11 (the disk cartridge 11 It constitutes the locking means). A pin 36a hangs down from the rear end of each hook 36. This pin 3
6a is an L-shaped pressing piece provided at the rear end of the slide plate 24
It is in a positional relationship of being pressed from the rear by 24a. Therefore, when the slide plates 24, 24 are in the most forward position, the pressing pieces 24a of the slide plates 24, 24 push the pins 36a, 36a from the rear to the front, and the open state of the hooks 36, 36 is maintained. (This state is set to the mountable state or the unlocked state of the disk cartridge 11) [see FIG. 2].

The left corner of the slide holder 10 (see FIGS. 1 and 2).
In the figure), a limit switch 44 as a detecting means is provided. The limit switch 44 is turned on and outputs a detection signal when the disc cartridge 11 is inserted into the slide holder 10 and the disc cartridge 11 moves to a set position which is a predetermined position. When the detection signal is output, the drive motor is driven by the known electric mechanism.
30 is driven and the rotation operation is started. As a result, the slide plates 24, 24 move rearward, and the pressing state of the pins 36a, 36a by the pressing pieces 24a, 24a of the slide plates 24, 24 is released,
The hooks 36, 36 are biased by the springs 36, 36 to rotate inward,
The disc cartridge 11 is engaged with the engaging portion and locked so that the disc cartridge 11 does not move from the set position (the disc cartridge 11 is in a locked state).

Further, a shutter opening lever 38 is pivotally attached to one corner of the rear end edge of the slide holder 10, and the tip extends to a midway part of the slide holder 10. Shutter opening lever
38 is biased by a spring 40 (the state of FIG. 2 is the biased state). A roller 39 is provided at the tip of the shutter opening lever 38, and the roller 39 contacts the shutter (not shown) of the disc cartridge 11 to be inserted, and further pushes the disc cartridge 11 to rotate the shutter opening lever 38. Then open the shutter.

An opening 14A is formed in the center of the mechanical chassis 14,
A turntable 15 is provided so as to face the opening 14A, and a pickup 16 (shown by a chain double-dashed line in FIG. 2) for reading a compact disc through the opening 14A can advance and retreat toward the turntable 15.

Here, the slide holder 10 due to the forward / backward movement of the slide plate 24
I will explain the movement.

Note that FIG. 4 shows a side view of the state before the disc cartridge 11 is mounted on the slide holder 10, and FIG. 5 shows a side view of the mounted state (playback state).

First, in FIG. 4, the slide holder 10 faces the insertion opening 90a of the recording / reproducing apparatus 90 (insertion position).

In this state, the guide pin 13 of the slide holder 10 is located at the tip of the horizontal portion 18b of the guide groove 18a of the guide plate 18 while being sandwiched between the inner edge of the guide groove 18a and the inner edge of the guide elongated hole 26. .

In addition, the slide plate 24 located between the mechanical chassis 14 and the guide plate 18 is also at the most forward position, and the guide pin 13 is provided at the holding portion 26a located at the rear of the guide elongated hole 26 of the slide plate 24.
Is located.

Since the guide plates 18 and 18 are at the most forward positions, the pressing piece 24a provided at the rear end of the guide plates 18 and 18 is a pin on which the locking hook 36 of the disc cartridge 11 hangs.
36a is being pressed, and the hooks 36, 36 are open (the disk cartridge 11 is in an unlocked state).

In this condition, slide holder 10
When 11 is inserted to the deepest set position, the disk cartridge 11 presses the limit switch 44, the drive motor 30 starts rotating operation, and the rack pieces 28 and 29 are driven. In addition,
When the disc cartridge 11 is inserted, the shutter opening lever 38 contacts the shutter of the disc cartridge 11, and the shutter is opened.

Then, by driving the drive motor 30, the slide plates 24, 24
Is moved and the pressing pieces 24a, 24a also move in a direction away from the pair of hooks 36, 36, the pressing state on the pins 36a, 36a is released, and the hooks 36, 36 are biased by the springs 37, 37. The disk cartridges 11 are locked as they rotate inward. At this time, between the slide holder 10 and the slide plate 26, the pressing pieces 24a, 24a, the pins 36a, 36a, the hook 36,
The slide holder 10 does not move from the insertion position because a force is applied to each other by the urging force of the springs 37, 37 via the 36, and the guide pin 13 of the slide holder 10 abuts on the front inner edge of the guide groove 18a, 18a. In position.

Further, when the slide plates 24, 24 move, the slide plate 2
The upper edges of the slanted portions 26c, 26c of the guide elongated holes 26, 26 of 4 and 24 contact the guide pins 13 to press the guide pins 13, and the slide holder 10 causes the guide plates 18 to fall sideways to form an L-shaped guide groove. 18
It moves rearward horizontally along the horizontal portion 18b of a, 18a (see FIG. 5).

Further, when the slide plates 24, 24 move and the guide pin 13 comes into contact with the inner edge of the right end of the horizontal portion 18b, the upper edges of the inclined portions 26c, 26c of the guide elongated holes 26, 26 of the slide plates 24, 24 cause the pins to move.
Vertical portion 18c of L-shaped guide groove 18a when 13 is pressed
It vertically descends along and moves until it comes into contact with the lower end edge of the vertical portion 18c. After that, when the slide plates 24, 24 are further moved, the guide pin 13 is moved to the vertical portion 18c of the guide groove 18a.
The movement is restricted by being sandwiched between the inner edge of and the inner edge of the left end of the holding portion 26a of the guide slot 26.

By moving the guide pin 13 in this manner, the slide holder 10 also vertically descends along the vertical portion 18c of the guide groove 18a, and the disc cartridge 11 is set in the reproducing state (compact disc in the disc cartridge 11). Is held on the turntable 15). At this time, the holding portion 26 in which the pin 13 is positioned lower in front of the elongated guide hole 26 of the slide plate 24
It is located at a (see Figure 5).

When the disc cartridge 11 is set to the reproduction state, the position is detected by the limit switch 46 arranged at the retracted position of the slide plates 24, 24, and the driving of the drive motor 30 is stopped.

On the other hand, a case where the disc cartridge 11 is taken out from the insertion opening 90a of the recording / reproducing apparatus 90 will be described.

When the eject switch (not shown) for ejecting from the recording / reproducing device 90 is pressed, the drive motor 30 rotates in the reverse direction and the slide plate
Advance 24, 24. Then, when the rack piece 28 moves to the most advanced position by operating in reverse to the above-described setting of the disk cartridge 11, the limit switch 43 is turned on and the drive motor 30 stops moving. At this time, the locks 36, 36 of the disc cartridge 11 are released, and the disc cartridge 11 is ready to be taken out.

As described above, by driving the slide plates 24, 24, the disc cartridge 11 can be locked and the disc cartridge 11 can be moved to the reproduction position by the drive motor 30 being driven in series.
There is no click feeling when putting on and taking out, there is no discomfort, and operability is improved.

Although the preferred embodiments of the present invention have been described above, it goes without saying that the present invention is not limited to the above-described embodiments, and many alterations can be made without departing from the spirit of the invention. Of course to get.

(Advantages of the Invention) When the disc cartridge loading device according to the present invention is used, the pressing pieces provided on the moving device side are paired when the slide holder is at the disc cartridge insertion position and the disc cartridge is not inserted. When the slide holder moves from the insertion position to the playback position when the disk cartridge is inserted and the slide holder is inserted, the pair of hooks are opened outward against the biasing force of the spring to open the pair of hooks to the unlocked state. By moving together with the moving device and releasing the pressing force by separating from the pair of hooks, the pair of hooks can be inwardly joined by the urging force of the spring and the disk cartridge can be locked. In this way, since the pair of hooks can be rotated without depending on the insertion force of the disc cartridge, when the disc cartridge is inserted into the disc holder, it is received from the spring provided in the click mechanism as in the past. Since there is no need to insert it against the power, there is no click feeling when wearing it,
Since the insertion can be performed with a light force, the operability is improved, which is a remarkable effect.

[Brief description of drawings]

1 is a perspective explanatory view showing a disassembled state of the loading mechanism of the present invention, FIG. 2 is a perspective view of an assembled state, FIG. 3 is a partially disassembled perspective view of the loading mechanism, and FIGS. 4 and 5 are slides, respectively. FIG. 6 is a side view showing the movement of the holder, and FIG. 6 is a bottom view showing the drive transmission mechanism of the loading mechanism of the present invention. 10 …… Slide holder 11 …… Disk cartridge 14 …… Mechanical chassis 16 …… Pickup 18 …… Guide plate 24 …… Slide plate 26 …… Guide slot 30 …… Drive motor 44,46 …… Limit switch 90 …… Recording / playback device

Claims (2)

[Claims] 1. A slide holder into which a disc cartridge accommodating a compact disc is inserted, and a moving device for moving the slide holder together with the disc cartridge from an insertion position of the disc cartridge to a reproduction position when the disc cartridge is inserted. And a loading device for a disc cartridge including a drive device for driving the moving device, which is rotatably arranged so as to face the rear end side of the slide holder and is always biased inward by a spring to be inserted. A pair of hooks capable of locking the disc cartridge; a detection unit provided on the slide holder for detecting that the disc cartridge has been inserted to a predetermined position and outputting a detection signal for operating the drive device; Provided on the moving device side, When the disk holder is at the insertion position of the disc cartridge and the disc cartridge is in the non-inserted state, it abuts and presses against the pair of hooks to open the pair of hooks outward against the biasing force of the spring. When the slide holder is moved from the insertion position to the playback position while the disc cartridge is inserted and the slide holder is moved to the reproduction position, the pressing force is released by releasing the pressing force from the pair of hooks, and the pair of hooks locks the disc cartridge. A loading device for a disc cartridge, comprising: a pressing piece. 2. The slide holder is provided with guide pins projecting outward on both side surfaces, and the moving device is positioned on both sides of the slide holder and is erected on a base, and the guide is provided. A guide groove into which the pin is inserted is bored, and the guide pin guides the guide pin along the guide groove to support the movement of the slide holder from the insertion position to the reproduction position. It is formed in parallel with the guide groove and has a guide elongated hole through which the guide pin is inserted, and is provided so as to be movable in the moving direction of the slide holder by the driving device, and when driven by the driving device. A slide plate for moving the slide holder by pressing the guide pin at the inner edge of the guide elongated hole, wherein the pressing piece is provided on the slide plate, and the slide plate drives the drive plate. When it is driven by the mounting, the guide pin moves in the parallel portion of the guide elongated hole with the guide groove, and the pressing piece moves away from the pair of hooks to lock the disc cartridge by the pair of hooks. The guide pin and the guide elongated hole are set so that the guide pin is pressed against the inner edge of the guide elongated hole to start moving from the insertion position after completion of the step. A disk cartridge loading device as described.