JPH0226309B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a recording disk reproducing apparatus.

This type of recording disk is stored in a cartridge because its playback ability decreases if it is touched by hand, and by inserting and removing the cartridge containing this recording disk into the playback device, the recording disk can be A method is used in which the board remains inside the playback device. The movement from the second position, which is the insertion position of the recording disk, to the first position, which is the reproduction position of the recording disk, is performed by a manually responsive mechanism.

For this reason, after inserting the recording disk, it is necessary to operate a lever or the like to move the recording disk from the second position to the first position, and even after playback is finished, the lever or the like must be operated. It is necessary to move the recording disk from the first position to the second position, insert the cartridge, and retrieve the recording disk, which has the drawback of being cumbersome to operate.

The present invention aims to eliminate the above-mentioned drawbacks, and aims to provide a recording disk reproducing device that is easy and simple to operate.

An embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is a recording disk, 2 is a cartridge that stores this recording disk 1, 3 is a cartridge half that is fitted into an opening 2a of this cartridge 2, and 3a is this cartridge half 3.
3b is a hook portion that engages when the cartridge half 3 remains inside the playback device; 4 is a lock portion that acts to prevent the cartridge half 3 from coming out from the playback device; 4 is a hook portion that is engaged with the cartridge half 3 when it is inserted into the playback device; With a translating cartridge guide device,
4a is the right slider, 4b is the left slider, 4c
is the upper beam, and 4d is the lower beam. 5 is a right guide, 6 is a left guide, and when the cartridge 2 is inserted into the playback device (not shown), the upper beam 4c and the lower beam 4d open due to the unevenness difference provided on the right guide 5 and the left guide 6, By the action of claws (not shown) attached to these, the cartridge 2 is inserted in an open state as shown in FIG.

Next, in FIGS. 3 to 9, 7 is a chassis, 7a is an insertion port for the cartridge 2, 8 is a guide rod fixed to the chassis protrusions 7b and 7c, and 9 is a movable device on which a signal detector 10 is mounted. A bearing portion 9a forming a part of the movable body 9 is slidably supported by the guide rod 8. A roller 11 is pivotally supported by the movable body 9 and is rotatable on a guide rod 12 fixed to the chassis projections 7d and 7e. 13 is a moving body driving device for moving the moving body 9 along the guide rod 8; 14 is a motor attached to the housing 15; 16 is a fixture attached to the chassis 7; The housing 15 is pivotally supported on this pin 17.
Reference numeral 18 denotes a fixture, and 18a denotes a pin that is set upright on the fixture, and is engaged with the elongated hole 15a of the housing 15. 19 is a tension spring hung between the housing 15 and the fixture 18; 20 is a pin installed vertically in the housing 15; a wheel gear 21 and a pinion gear 22 are coaxially fixed to each other; It is supported. 23 is a fixture attached to the housing 15, 24 is a pin pivotally supported by this fixture, and the worm 25 and pulley 26 are fixed to this pin. 27 is this pulley 26 and motor 1
Pulley 2 fixed to the output shaft of 4 (not shown)
It is a belt hung between 8. A rack plate 29 is attached to the side surface 9b of the movable body 9, and the rack teeth 29a mesh with the pinion gear 22. 30 is a motor fixed to the chassis 7, 31 is a turntable attached to this motor shaft 30a, and 32 is the motor shaft 30.
33 is an elevating body, 34 is a pantograph mechanism that supports this elevating body, 35 is a fixture fixed to the lift plate 36, and 37 is fixed to the chassis 7. 38 is a link A, and 39 is a link B. One end of the link A 38 is pivotally supported on the fixture 35 by a pin 38a, and the other end is connected to the elongated hole 3 of the fixture 37 by a pin 38b.
7a. The link B39 has one end pivotally supported by the fixture 37 by a pin 39a, a pin 39b at the other end engaged with the elongated hole 35a of the fixture 35, and supported by the link A38 by a pin 40. Reference numeral 41 denotes a rotary lever pivotally supported by brackets 42 and 43 attached to the chassis 7;
44 is a spring hung between the pivot lever 41 and the chassis 7, 45 is a pivot rod, and the pivot rod 45 is attached to brackets 46, 47, 48 attached to the chassis 7. It is supported. 49 is a rotating pipe, and this rotating pipe 49 is pivotally supported by the rotating rod 45,
Reference numerals 50 and 51 are arms fixed to the rotating pipe 49, and 50a is a pin erected in the arm 50, which is engaged with the elongated hole 35b of the fixture 35. 52 is a bracket fixed to the chassis 7, 52a is a stopper part forming a part of the bracket 52, and the lifting of the elevating body 33 is stopped when the fixture 35 comes into contact with this stopper part 52a. Reference numeral 53 denotes a link A fixed to the rotary pipe 49, and a connecting plate 54 is pivotally connected between the link 53a that is set up at the lower end of the link A and the pin 41c that is set up at the lower end 41b of the rotary lever 41. held. 55
is a link B fixed to the rotating rod 45, and together with the rotating rod 45 constitutes a rotating body. 5
6 is a roller pivotally supported thereon and is in a position to engage with the rack plate 29. 57 is the rotation rod 45 mentioned above.
The lever is fixed to the arm 51 and is located at a position where it engages with the arm 51. Reference numeral 58 is an arm fixed to the rotating rod 45, and reference numeral 59 is a tension spring hung between the arm 58 and the chassis protrusion 7f.

FIG. 6 shows a clamping device 60 for the recording disk 1, where 61 is a link fixed to the rotating rod 45, 62 is a pin that engages with the elongated hole 61a of the link 61, and 63 is a link plate. A pin 62 is engaged with this elongated hole 63a, and a tension spring 6 is connected between this pin 62 and the lower end 63b of the link plate 63.
It is multiplied by 4. 65 is the upper finger, 66
is the lower finger, which is pivotally supported by a plate 68 by a rod 67. The link plate 63 is pivotally supported at the end 66a of the lower finger 66,
The rotation of the lower finger 66 is stopped by the side portion 66b of the lower finger 66 coming into contact with the stopper portion 68a. Further, 69 engages with the hook portion 3b of the cartridge half 3, and the recording disc 1
When the cartridge half 3 is held by the clamp device 60, the cartridge half 3 is also held at the same time.

Next, the operation will be explained. FIG. 3 shows the cartridge 2 containing the recording disc 1 shown in FIG.
Torque is applied in the clockwise direction, and the roller 56 is in contact with the lower parallel portion 29b of the rack plate 29, as shown in FIG. At this time, rotating plate 4
1, a torque is applied in the counterclockwise direction in the figure by the tension of the tension spring 44, and this torque becomes a tensile force of the connecting plate 54, causing the link A53, the rotating pipe 49 fixed thereto, and the arms 50, 51 to move backward. The mounting tool 35 and the elevating body 33 are urged upward in the clockwise direction, but this movement is prevented by the mounting tool 35 being forced upward by the bracket 52.
It is stopped by contacting the stopper portion 52a. Therefore, arm 57 is similar to arm 51.
There is a gap of approximately 2 to 3 mm. Further, as shown in FIG. 6, since the pin 62 is biased downward by the tension spring 64, the pin 62 is pressed against the lower end surface of the elongated hole 61a and is placed in the middle of the elongated hole 63a. The end 66a of the lower finger 66 is pushed upward by the load from the tension spring 64.
Due to this rotational force, the side 66 of the lower finger 66
b is in contact with the stopper portion 68a. That is, the height of the lower finger 66 is greater than the height of the rotating rod 45.
The stopper part 6 is not affected by the error in the rotational position of the
It is determined by the relative positional relationship between 8a and side portion 66b.

In this positional relationship, the cartridge 2 containing the recording disk 1 is inserted from the insertion opening 7a of the chassis 7. At this time, as shown in FIG. 2, the cartridge is inserted into engagement with the cartridge guide device 4 and with the opening 2a enlarged. At the mid-insertion position, a roller (not shown) pivotally supported by the cartridge guide device 4 comes into contact with the inclined portion 41a of the rotary lever 41, overcomes the torque by the tension spring 44, and moves the rotary lever 4
1 in the clockwise direction as shown in FIG. This rotational force moves the connecting plate 54 to the left in the figure, link A53, rotation pipe 49, arms 50, 51.
is rotated clockwise. In the above operation, the pantograph mechanism 34 is operated downward, and the lift plate 36 and the elevating body 33 supported thereon descend while maintaining a parallel attitude. By the above operation, the cartridge 2 is inserted without colliding with the elevating body 33.

When the cartridge 2 reaches the clamp device 60, a lock release tool (not shown) acts on the lock portion 3a, so that the locking action between the cartridge 3 and the cartridge 2 is released, and the hook 69
However, by engaging with the hook portion 3b of the cartridge half 3, the cartridge half 3 is held by the clamping device 60, and the recording disk 1
is also held in the clamp device 60 by the pressing action of the upper finger 65 and the lower finger 66.

Thus, after the clamping action has taken place,
The cartridge 2 is extracted, but at some point in the process, a roller (not shown) pivotally supported by the cartridge guide device 4 passes through the inclined portion 41a of the rotary lever 41, and due to the biasing force of the tension spring 44, , the rotary lever 41 is rotated counterclockwise in FIG. 6, and the elevating body 33 rises to support the recording disk 1 on the upper surface 33a of the elevating body 33. Needless to say, the height of the elevating body 33 at this time is the same as the height before the cartridge 2 is inserted, and the fixture 35 is in contact with the stopper portion 52a of the bracket 52.

Next, in response to a signal instructing the start of the reproduction operation, the movable body driving device 13 is operated, and the movable body 9 moves rightward in FIG. Since the rotation rod 45 is applied with clockwise torque by the tension spring 59, as shown in FIG.
The contact portion of the roller 56 moves from the lower parallel portion 29b of the rack plate 29 to the inclined portion 29c, and as a result, the link B55 and the rotating rod 45 start rotating clockwise in the figure. Then, the arm 57 fixed to the rotating rod 45 and the arm 51 fixed to the rotating pipe 49 come into contact with each other, but at this time, the clockwise torque of the rotating rod 45 by the tension spring 59 (hereinafter referred to as the first The arm 51 is pushed down by the arm 57, causing the lift plate 36 and the The supported elevating body 33 and the recording disk 1 descend. Next, the recording disk 1 comes into contact with the upper end surface 31a of the turntable 31, and the elevating body 33 also comes into contact with a part (not shown) of the turntable 31 and stops descending. The lift plate 36 then descends further by 2 to 3 mm until it comes into contact with a portion (not shown) of the chassis 7 and stops descending. Then, when the movable body 9 continues to move to the right, the roller 58 moves as shown in FIG.
is separated from the slope 29c of the rack plate 14, and the groove 14
Go into d. However, as described above, since the lowering of the lift plate 36 is stopped at a portion of the chassis 7, the roller 56 does not come into contact with the upper side 29e of the groove of the rack plate 29. With the above operation,
The mounting operation of the recording disk 1 is completed, the movable body 9 moves further, and at the same time, the recording disk 1 is rotated by the drive of the motor 30, and the signal detector 10 mounted on the movable body 9 starts recording. When the recording position on the disk 1 is reached, the recording is reproduced.

Next, the operation after the reproduction is completed will be described, but this is the reverse operation of the above operation. That is,
When the reproduction is completed, the movable body driving device 13 is driven in the opposite direction, and the movable body 9 is moved to the left in FIG. 3. When the movable body 9 reaches a predetermined position, the roller 56 comes into contact with the inclined part 29c of the rack plate 29, as shown in FIG.
The arm 57 rotates counterclockwise, and the tension spring 4
4, the arm 51 and the rotating pipe 49 also rotate counterclockwise while the drag force between the arms 57 and 51 is maintained, and the lift plate 3
6. The recording disk 1 rises. This upward movement is stopped when the fixture 35 comes into contact with the stopper portion 52a of the bracket 52, but since the roller 56 is still on the inclined portion 29c of the rack plate 29, the rotation rod 45 and the arm 57 are still rotated. When the roller 56 reaches the lower parallel portion 29b of the rack plate 29, the rotation of the rotation rod 45 and arm 55 is stopped. Therefore, the distance between arm 57 and arm 51 is 2 to 3 mm.
This will ensure that the gap is maintained. Even after the rotation of the rotation rod 45 and the arm 55 has stopped, the moving body 9 continues to move to the left, and the roller 56 continues to move to the left.
When the lower parallel portion 29b of the rack plate 29 reaches an intermediate position, the movement of the moving body 9 stops.

Due to the above operation, the recording disk 1 is located at the same height as the cartridge insertion slot 7a, and although a detailed explanation is omitted, the recording disk 1 and the cartridge not stored in the cartridge half 3 are inserted into the cartridge. The recording disk 1 and cartridge half 3 are recovered by inserting them through the opening 7a. In addition, at this mid-insertion position, the rotary lever 41
Needless to say, due to this action, the recording lift plate 36 is lowered to avoid collision between the cartridge 2 and the elevating body 33.

In the above embodiment, due to the engagement of the inclined portion 29c of the rack plate 29, the arm 55, and the roller 56,
Although the moving body 9 is moved up and down by raising and lowering the recording disk 1, other engagement mechanisms may be used.
Figure 2 shows another embodiment, in which 55 is a pinion gear fixed to the end of the rotating rod 45, 29c is a rack tooth provided on a part of the rack plate 29, and the pinion gear 55 and the rack tooth 29a are connected to each other. are in a positional relationship that prevents interference from each other. In the apparatus configured as shown in FIGS. 11 and 12, the recording disk 1
During regeneration, the pinion gear 55 is in the non-contact range 29
d, the rotating rod 55 is stopped, but when the movable body 9 returns to the standby position, the pinion gear 55 and the rack teeth 29c engage, so the rotating rod 45 rotates and records a recording circle. The plate 1 is raised and lowered.

Further, in the above embodiment, the torque obtained from driving the movable body 9 is applied to the rotating rod 45 and the rotating pipe 4.
Although the recording disk 1 was raised and lowered by the connecting action of 9,
The same operation as in the above embodiment can also be obtained by, for example, rotating the cam plate by driving the movable body 9 and engaging the lift plate 36 and the lower finger 66 with this cam plate.

As described above, the present invention allows the recording disk 1 to move up and down by engaging with the movement of the movable body 9 at necessary times, and does not require any other drive source for this up and down movement, so it costs less. This has the effect of providing a product that is inexpensive and has good operability.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a recording disk and a cartridge storing the recording disk, and Fig. 2 is a perspective view showing the state when the cartridge is inserted. FIG. 3 is a perspective view common to an embodiment of the present invention, and FIG. 4 is a perspective view showing a recording disk reproducing apparatus according to an embodiment of the present invention.
Figure 6 is a detailed view of the ~ arrow part in Figure 3, Figures 7 to 10 are detailed views of the main parts of Figure 3 to show the operation, Figure 8 is a side view of Figure 7, and Figures 11 to FIG. 12 is a diagram showing another embodiment of the present invention, and FIG. 12 is a side view of FIG. 11. DESCRIPTION OF SYMBOLS 1... Recording disc, 2... Cartridge, 9... Moving body, 10... Signal detector, 13... Moving body drive device,
29... Rack plate, 33... Elevating body, 34... Pantograph mechanism, 41... Rotating plate, 45... Rotating rod, 44... Rotating pipe, 60... Clamp mechanism, and the same reference numerals in the drawings indicate the same or corresponding parts. shows.

Claims (1)

[Claims] 1. A first position where a recording disk is supported on a turntable, a second position spaced apart from the first position on the same axis as above, and detecting a signal on the recording disk. A recording disc reproducing apparatus comprising a movable body that holds a signal detector and moves from a standby position to a recording position on the recording disc during reproduction of the recording disc, wherein the movable body is When moving from the standby position to the recording position, the recording disk is engaged with the movement of the moving body to move from the second position to the first position, and the moving body moves from the recording position to the standby position. an engagement mechanism that engages with the movement of the moving body to move the recording disk from the first position to the second position, and this engagement mechanism responds to the movement of the moving body. 1. A reproducing device for a recording disk, comprising: a rotating body that rotates as the rotating body; and an arm that moves the recording disk up and down in response to the rotation of the rotating body.