JPS639313B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for mounting a recording disk to a 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. Reference numeral 5 indicates a right guide, and reference numeral 6 indicates a left guide. Although not shown, when inserting the cartridge 2 into the playback device, the upper beam 4c is
The lower beam 4d opens, and the cartridge 2 is inserted in the open state as shown in FIG. 2 by the action of claws (not shown) attached to these.

Next, in FIGS. 3 to 9, 7 is a chassis, 7a is an insertion opening for the cartridge 2, 8 is a guide rod fixed to the chassis protrusions 7b and 7c, and 9 is a moving body equipped with a signal detector 10. A bearing portion 9a forming a part of this movable body 9 is slidably supported by the guide rod 8. A roller 11 is pivotally connected to the movable body 9 and is rotatable on a guide rod 12 fixed to the chassis projections 7d and 7e. 13 is a moving drive 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 by a pin 17. 1
8 is a mounting fixture, 18a is a pin planted in this,
It engages with the elongated hole 15a of the housing 15. 1
9 is a tension spring hung between the housing 15 and the fixture 18; 20 is a pin installed vertically in the housing 15; the wheel gear 21 and the pinion gear 22;
are coaxially fixed to each other and pivotally supported by the pin 20. 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 14
A pulley 28 fixed to the output shaft (not shown) of
A belt hung between the two. 29 is a moving body 9
A rack plate is attached to the side surface 9b of the rack plate, 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 engaged with a pin 38b in the elongated hole 37a of the fixture 37. ing. One end of the link B39 is pivotally supported by the fixture 37 by a pin 39a, and the other end has a pin 39b engaged with the elongated hole 35a of the fixture 35, and is supported by the link A38 by a pin 40. 41 is a bracket attached to the chassis 7, and a rotating lever pivotally supported by 42 and 43;
41a is the inclined part of this, 44 is this rotating lever 4
1 and the chassis 7, and 45 is a second rotating body made of a rod.
5 is a bracket 4 attached to the chassis 7
It is pivoted at 6, 47, and 48. 49 is a first rotating body made of a pipe, this first rotating body 49 is pivotally supported by the second rotating body 45, and 50, 51
50 is an arm fixed to the first rotating body 49;
A is a pin that is set upright on the arm 50 and is engaged with the elongated hole 35b of the mounting tool 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 body 33 is raised by the fixture 35 using this stopper part 5.
It stops when it comes into contact with 2a. Reference numeral 53 denotes a link A fixed to the first rotating body 49, and a connecting plate 53 is provided between a pin 53a set upright at the lower end of the link A and a pin 41c set upright at the lower end 41b of the rotary lever 41. is held in high esteem. 55 is the second above
Links B and 56 fixed to the rotating body 45 are in a position to engage with the rack plate 29 by a roller pivotally supported thereon. Reference numeral 57 denotes a lever fixed to the second rotating body 45, and is located at a position where it engages with the arm 51. 58 is an arm fixed to the second rotating body 45, and 59 is a tension spring hung between this 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 second rotating body 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 long 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 state before the cartridge 2 containing the recording disc 1 in FIG. is given, and as shown in FIG.
It is in contact with 9b. At this time, the rotating plate 41
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 first rotating body 49 fixed thereto, and the arms 50, 51 to move backward. Although the fixture 35 and the elevating body 33 are urged upward in the clockwise direction, this movement is stopped when the fixture 35 comes into contact with the stopper portion 52a of the bracket 52. Therefore, the arm 57 is not in contact with the arm 51, and there is a gap of about 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. It is located
The end portion 66a of the lower finger 66 is pushed upward by the load from the tension spring 64, and this rotating force causes the side portion 66b of the lower finger 66 to abut against the stopper portion 68a. That is,
The height of the lower finger 66 is not affected by the error in the rotational position of the second rotational body 45, and the height of the lower finger 66 is
It is determined by the relative positional relationship between the side portion 66b and the 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 engaged with the cartridge guide device 4 and inserted with the opening 2a expanded. 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 rotating lever 41, overcomes the torque exerted by the tension spring 44, and moves the rotating lever 41.
Rotate clockwise as shown in Figure 6. This rotational force causes the connecting plate 54 to move leftward in the figure, and the link A53, first rotating body 49, and arms 50, 51 to rotate clockwise. The above operation causes the pantograph mechanism 34 to move downward, and the lift plate 3
6 and the elevating body 33 supported thereon descend while maintaining parallel postures. 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 half 3 and the cartridge 2 is released, and the hooking metal fitting 69 is attached to the cartridge half. 3, the cartridge half 3 is held by the clamp 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 second rotating body 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 second rotating body 45 start rotating clockwise in the figure. And the second above
The arm 57 fixed to the rotating body 45 and the arm 51 fixed to the first rotating body 49 come into contact, but at this time, the clockwise torque of the second rotating body 45 due to the tension spring 59 (hereinafter referred to as the first torque) Since the counterclockwise torque (hereinafter referred to as "second torque") of the first rotating body 49 caused by the tension spring 44 is larger than the counterclockwise torque (hereinafter referred to as "second torque"), the arm 51 is pushed down by the arm 57 and is not supported by the lift plate 36 or the like. The 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. When the movable body 9 continues to move to the right, the roller 58 separates from the slope 29c of the rack plate 14 and enters the groove 14d, as shown in FIG. 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 mounted on the movable body 9 is detected. When the device 10 reaches the recording position on the recording disk 1, 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 first rotating body 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 part 52a of the bracket 52, but since the roller 56 is still on the inclined part 29c of the rack plate 29, the second rotating body 45 and the arm 57 are still rotated. move the roller 56
reaches the lower parallel portion 29b of the rack plate 29, and the second rotating plate 45 and arm 55 stop rotating.
Therefore, the distance between arm 57 and arm 51 is 2 to 3.
A gap of mm will be maintained. Even after the second rotating body 45 and the arm 55 stop rotating, the moving body 9 continues to move to the left, and the roller 56 continues to move to the left.
However, 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. By inserting the cartridge through the opening 76, the recording disk 1 and the cartridge half 3 are recovered. 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 in order to avoid a collision between the cartridge 2 and the elevating body 33.

In the above embodiment, the tension spring 44 is hung between the rotation plate 41 and the chassis 7, and the tension spring 59 causes the second rotation body 45 to generate clockwise torque, but this is done as shown in FIG. It's okay. That is, in the figure, no tension spring is applied to the rotation plate 41, but the torsion spring 44 is applied in a direction that attracts the arm 51 and the lever 57 to each other.
With this configuration, the same effect as in the above embodiment can be obtained. Further, in the above embodiment, the second rotating body 45 is coaxially structured to pass through the first rotating body 49, but this may be structured as shown in FIG. 12. That is, 49 is a first rotating body that responds to the rotating lever 41, 50 and 51 are arms fixed to this, 44 is a tension spring that biases the rotating lever 41 clockwise in the figure, and 45 is a drive source. 59 is a tension spring that urges this in a clockwise direction, and 57 is an arm fixed to this second rotating body and positioned to abut against the fixture 35. . Although a detailed explanation will be omitted, it goes without saying that the same effect as the above-described embodiment of the present invention can be obtained.

Further, in the above embodiment, the second rotating body 45 is operated by the driving force of the moving body 9, but this is possible by using a dedicated drive device for driving the second rotating body, so that the moving body 9 is in the standby state. After reaching the position, the dedicated drive device described above may be driven by an electric sequence, or the second rotating body 45 may be operated manually using a lever or the like.

As described above, the present invention includes a first rotating body that moves the recording disk to the second position in response to the insertion of a cartridge, and a first rotating body that moves the recording disk to the second position in response to the insertion of a cartridge; a second rotating body for moving the plate to a second position; and a return means for moving the recording disc to the first position in response to detachment of the cartridge and movement of the movable body from the recording position to the standby position. This has the effect of improving operability and providing a compact playback device.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a recording disk and a cartridge that stores it, 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. 3 is a perspective view showing a recording disk reproducing apparatus according to an embodiment of the present invention.
6 are detailed views of the parts indicated by the arrows in FIG. 3, FIGS. 7 to 10 are detailed views of the main parts of FIG. Figure ~ 1st
FIG. 2 is a diagram showing another embodiment of the present invention. 1...recording disc, 2...cartridge, 9...
Moving body, 10...Signal detector, 13...Moving body drive device, 29...Rack plate, 33...Elevating body, 3
4... Pantograph mechanism, 41... Rotating plate, 45... Second rotating body, 49... First rotating body,
60...Clamp mechanism. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] 1. A first position where a cartridge containing a recording disk is inserted into the main body of the apparatus and the recording disk is supported on a turntable, and a space located approximately coaxially with the first position. a second position, and a movable body that holds a signal detector for detecting a signal on the recording disk and moves from a standby position to a recording position on the recording disk during reproduction of the recording disk. In the recording disc playback device configured, when the cartridge is inserted, the recording disc is moved to the second position by engaging with the insertion operation of the cartridge.
a first rotating body that moves the recording disk from the standby position to the first position; and when the moving body moves from the standby position to the recording position, it engages with the movement of the moving body to move the recording disk to the second position. A second rotary body that moves the recording disk from the recording position to the first position engages with the removal of the cartridge and the movement of the movable body from the recording position to the standby position.
A reproducing apparatus for a recording disc, comprising a return means for moving the recording disc from the position to the second position. 2. The first rotating body is cylindrical, a second rotating body is provided inside the first rotating body, and the first rotating body is provided with a first arm that moves the recording disk to the first position in response to the rotation of the first rotating body, Claim 1, characterized in that the second rotating body is provided with a second arm that responds to the rotation of the second rotating body and engages with the first arm to move the recording disk to the first position. The recording disk reproducing device according to item 1. 3. The return means includes an elastic body that returns the first rotating body to the cartridge detached state, and a third arm that moves the recording disk to the second position in response to the rotation of the first rotating body. A recording disk reproducing apparatus according to claim 2, characterized in that: