JPS5960759A - Recording disk reproducer - Google Patents

Abstract

PURPOSE:To obtain an inexpensive recording disk reproducer having high reliability, by using a driving source which shifts a scanner to a driving source to a disk lifting mechanism. CONSTITUTION:In a play operation mode, a motor 172 has reverse the revolution, and a main arm 165 turns toward an arrow S. Then a ring moves down via a coupling pin 112, etc., and a disk 6 is moved onto a turntable 52. Thus the conduction of a solenoid 179 is cut off, and a clutch part 170 engages a carriage driving system 155. Then a carriage 120 is shifted toward an arrow N via a rack 121 to start reproduction. When the reproduction is over, the motor 172 reverses. Then the carriage 120 is shifted toward an arrow P, and the solenoid 179 conducts. The part 170 engages a disk driving system 151 to move the disk 6 upward. A rack part 177 engages a gear 156 when the part 170 is switched to the system 151 from the system 155 to prevent the revolution of the system 155.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention provides a method for removing a disc-shaped record carrier (record) stored in a record case from the record case in conjunction with the insertion of the record case into a device. This invention relates to a record disc playback device for storing a record in a record case, and in particular, a record elevating mechanism that moves the record downward in the direction of the turntable in response to the operation of taking out the record from the record case and storing the record. The drive unit is unique.

Conventional structure and problems Conventionally, when a record case containing a record is inserted into the playback device at a predetermined position 1, and the case is removed, only the record is placed in the playback device at a predetermined position. The held record is lowered to the turntable by the record lifting mechanism, and the record is placed and fixed on the turntable. After playback is finished, the record lifting mechanism lowers the held record to the turntable. A system in which the record is raised from the turntable to a predetermined position and then stored in the case is being considered.

In the conventional configuration, the drive source for the record pull-down mechanism is an independent motor, etc., and therefore, one new drive source is required, and a new one is required.
When one drive source is used, consideration must be given to adjusting the time relationship at the start of driving with other drive sources.

Purpose of the Invention In view of the above-mentioned problems, the present invention provides an inexpensive and highly reliable reproducing device by using a drive source for transporting a scanning body for reproducing signals from a record as a drive source for a record lifting mechanism. It is something that you are trying to gain.

Structure of the Invention The present invention provides rotation 111111 and rotation 11 of the turntable.
Move up and down for 11 purposes! In the first state of descending, all the recording disks are placed on the turntable, and Jj1. In the second state in which the recording medium is in the turntable, the elevating means for supporting the recording medium above the turntable, the scanning body transporting means for detecting signals from the recording disk on the turntable, and the elevating means in the first state. A first driving means for driving between the first and second states and a second driving means for driving the scanning member transporting means in the radial direction of the recording disk are switched and driven by the same driving source, and the The present invention is characterized in that it includes a drive source switching mechanism that operates to bias the second drive means in the braking direction when the first drive means is driven.

DESCRIPTION OF THE EMBODIMENTS An embodiment of the reproducing apparatus according to the present invention will be described below with reference to all the drawings.

Figures 1 to 3 show the structure of a record case that can be used in the playback device according to the present invention. The cover 3 is detachably connected to an opening provided on the front side in the insertion direction x1 of the cover 3. The case 2 and the lid 3 are made of, for example, styrene resin.

The case 2 is made by pasting together a pair of half-housing pieces 4 molded with the same mold, and the interior is flat throughout its entire width and length: 1 - storage capacity 6 (height is the thickness of the record) be equivalent to)
Records 6 are stored in this space 6. This space 5t:l: The insertion direction x1 side is the opening 7, and the remaining three sides Q and L are closed. The constituent parts of the case 2 are arranged such that the same constituent parts are located at opposite positions in the diametrical direction when looking in the direction of the arrow x1 with the center line l in the insertion force direction as the center.

Each half 4 plays a hinge role when expanded x-1+: -c
It consists of a flat plate part 8 having +111 parts 17 on the left and right sides, and protruding strip parts 9, 10, 11 along the five force edges. 2Jl,
Looking at the lower half 4 in Figure 1, the opening 11 of the flat plate part 8
On the other hand, on the left and right sides of the opening, there are windows 12 to which the expansion arms, which will be described later, engage, and there are four parts 13, which are engaged with the protrusions of the lid, which will be described later.

A pair of tapers 14 are formed symmetrically on the edge of the opening. This box is used to fully guide the insertion of the latch arm, which will be described later. C1 is formed in the deep part of the trench, and protrusions 15 are formed on which the record 6 comes into contact at positions offset from the center line e to the right and left. A recess 16 is provided on the inner surface near the opening 1 of the protrusions 9 and 10, into which a protrusion 2, which will be described later, is fitted. The half body 4 formed in this way has protrusions 9,
10.If the whole circumference of 11 is glued by one part, it constitutes case 2.

The end of the lid 3 is provided with a flange portion 18 that closes the opening 7 of the cover 2 when the lid 3 is engaged and fixed to the case 2.
At the same time, symmetrically about the center line 4, there is a notch 19 through which an expansion arm (to be described later) can enter, an inclined part 27 for guiding a disc holding arm (to be described later), and a thin part 28 (thinner than the glue guard of a record). Guide grooves 2o are formed on both sides, and convex portions 21 that engage with the four parts 13 of the case 2 are formed on both sides of the center line 4. 1. It is provided with an inclined part 22 and a tapered part 23 that serve as guides when the lid 3 enters the case 2, and also engages with the four parts 16 mentioned above to fix the lid 3 to the case 2. The protrusion 24 has flexibility 4 of the resin.
: Provided on the arm 25 used, with C1 at its tip.
, is provided with a sloped portion 26 that engages with a release section to be described later.

FIG. 2 shows a state in which the Il, record 6, and lid 3 are all assembled into the case 2. This state will be explained with reference to FIG. At the same time, it is locked in the middle direction by the protrusions 9 and 10. , to,': 3 k, l:, protrusion 24
is engaged with the concave portion 16, and the convex portion 21 is engaged with the four portions 13, thereby closing and connecting the open LI portion A.

As a result, the cord 6 is housed in the case 2 without falling out, as the length -C with respect to the insertion direction x1 is also defined by the arcuate portion 29 of the lid 3. The thickness of the portion of the lid 3 that enters the case 2 is approximately the same thickness as the storage space of the case 2, and the record 6 will not fall out of the gap.

FIG. 3 is a detailed view of the lid 3, in which the shape of the side facing the record 6 is formed, for example, by a circular arc with a gap bi at both ends larger than a gap a in the medium heat section. This device is designed to operate stably even if the relative relationship between the lid 3 and the record 6 deviates somewhat in the direction of the arrow Y in accordance with the playback operation [1, “j” to be described later.

4 to 9 relate to the basic configuration of one embodiment of the reproducing apparatus of the present invention, in which FIG. 4 is a schematic configuration diagram, FIG. 5 is a partial detailed diagram of the disc holding mechanism, and FIG. 1111 in the diagram
1 is a sectional view, FIG. 7A shows a detailed partial view, FIG. 8A shows a partial operation diagram, and FIG. . .

The playback device 50 includes a mechanism 61 for expanding the opening 7 of the case 2, a turntable 52 on which records are placed, a mechanism 53 for holding the record 6, a mechanism 54 for latching onto N3, and the like. ing.

The case expansion mechanism 51 is located near the record case insertion opening 55 of the playback device 5o, and is connected to the guide rails 5 on both sides.
6 and moves reversibly in the direction of arrow xi+x2. This expansion mechanism 51 is made up of two side beams 67 and a lower beam 68 that extend in the width direction of the playback device 500, and each beam 57, 58 is rotatable about the guide rail A moving object 51 moving on 56
A pair of expanding arms 59 are formed. When each beam 57, 58 is located near the record case insertion opening 66, the fourth beam 57, 58 is
As shown in FIG. 6, the expansion arms 59 are inclined so as to be close to each other and cross each other. Beam 6 completed.

When 58 moves in the direction of arrow X1, beats 57 and 6
A roller 61 rotatably provided on the guide rail 5
The arms 59 ride on the tapered portions 62 formed at the ends of the arms 59, rotate horizontally, and rotate the arms 59 vertically away from each other.

The disk clamping mechanism 53 consists of a lower clamp arm 63 and a pair of upper clamp arms 64, and is provided at the inner part of the endogenous device 5o. In addition, this handle 1 iso structure 53 is the same as the lid 3 mentioned above.
The structure is such that the record 6 inserted into the record case through the guide groove 2o is held in two places. The lower clamp arm 63 has a pair of clamp parts 63&? :The upper part I is supported by the arm 73a which stands on the base 3.
It is pivotably supported on IQbe6. This bottom 11
The recranzo arm 63 is configured to open and close in response to the operation of a cam plate 154, which will be described later.
It is normally biased to rotate upward (in the direction of arrow C) by a spring (not shown). The upper clamp arm 64 is an arm 64a.
It is constituted by a clamp part 64b provided at the tip thereof, and a straight horn shaft 64C which is fixed by caulking to the other end thereof, and is rotatably supported by the upper shaft 66.

The lid hooking mechanism 54 is constructed symmetrically on both sides in the two directions of the arrows, and one body will be explained here.

Components on the other side are designated by the same number with a subscript color. The latching member 70 has a U-shape and is fixed to the base 73 at a fulcrum.

It is rotatably supported by a pin 74 and biased by a spring (not shown) in the G direction in the figure. A cam groove 75 at the other end engages with a cam pin 76 fixed to the base 73. This allows the latch member To to rotate in directions E and F in the figure in response to the movement of the bushing lever 72.

The cover 7 is a suppressing portion that comes into contact with the flange portion 18 of the lid 3, and is fixed to the push lever 72. 8o is a release member that engages with the slope 26 of the lid 3, and the base 73
It is fixed at n. A bottle 81 is fixed to the base 73.
The lock cam 85, which is rotatable as a fulcrum and has a cam groove 83, a convex portion 82 at one end, and an engaging portion 84 at the other end, is moved in the direction of arrow H in FIG. 6 by the spring 83&. The rotation is energized. The cam groove 83 has the aforementioned bushing lever 'y2. 'y2a'6 The -XA: portion of the lock bin 78 that is rotatably connected is engaged. The bottle 86 fixed to the base 73 is rotatably biased by a spring 89 in the direction of the arrow in the figure, and its position is defined by the above-mentioned upper shaft 65.
A release L/ bar 87 is provided, and this WE
One end is pivotally supported by a bottle 88 installed in the removal lever 87.
``Corresponding to the movement of the L1 release lever 87 in the M direction,
The end of the auxiliary lever 9o that moves in the direction engages with a convex portion 82 provided on the lock cam 85. -! A pin 91 is fixed to the other end of the release lever 87, and a spring 93 is rotatably attached to the bushing lever 72.
The abutting member 92, which is energized by the above, is attached.

This abutting member 92 can be switched between the two states shown in FIG. 7A through a spring 93 depending on the position of the bushing lever 72.

The turntable 62 is connected to the motor 10 via the boss 101i.
A ring 102 which can be held in the center hole of the record is provided at the center of the turntable 62 through legs 103 so as to be movable up and down. There is.

Another ring 104 is provided below the leg 103, and its position is defined by engagement of the ring 104 with the lifting ring 106. This lifting ring 1
05 is provided with a guide bin 106, which has a long hole IQ7N in the guide plate 107, and a fork plate 10B whose one end is rotatably supported by a fulcrum 109 and a support shaft 110.
It is configured to move up and down in response to the movement of the n1 fork plate 108 supported at the other end. A connecting plate 111 and a connecting pin 112 are fixed to the fork plate 108, and are connected to a drive mechanism 150, which will be described later, via the connecting pin 112.
ing.

The drive mechanism 150 is integrated with a record drive system 151 operated by a cam plate 164 driven through gears 152 and 163, and a carriage 120 driven by gears 166 and 157 that picks up signals from the code 6. Gear 158 meshing with rack 121
It has a gear ridge drive system 165 that moves and drives the y ridge 120 in the directions of arrows N and P.

A cam groove 154a is provided in the cup/plate 164,
In this case, the bottles 161 fixed to the sub-arm 160, which is rotatably supported on the support shaft 169, are frozen together. At one end, a main arm 165 to which a side cam 163 rotatably supported on a support shaft 162 is connected via a pin 164 is connected to a main arm 165 by a chassis lever 166.
It is connected to the position defining portion 16o&. The other end of this main arm 166 is connected to the aforementioned connecting pin 11.
It is combined with 2.

This drive mechanism 16o also includes the record drive system 15 described above.
1 and a clutch portion 17Q that completely switches the transmission of dynamic force to the carriage drive system 155.

This clutch portion 170 is rotatably supported on a support shaft 171 and connected to one end by a motor 172 and a bell 173.
At the bottom, gear 152. It has a rotating shaft 176 of a pulley gear 176 having a pinio y 174 that can mesh with the gear 156, and a rack part 17 that can mesh with the gear 166 at the other end.
7, a solenoid 179 engaged with the clutch lever 178, and a spring 180 that energizes the clutch lever 178. When the solenoid 179 is energized (the Figure 7 a)
The drive system is switched depending on whether the power is turned on or not (see Figure 7).

Next, this operation will be explained. 1. When the standby switch (not shown) of the playback device is pressed, the solenoid 179 is energized and the motor 172 rotates, resulting in the state shown in FIG. 7A, in which the ring 102 is raised. In this state, when the record case 1 is inserted into the playback device 6o through the insertion port 65 with the lid 3 facing forward, the closed expansion arm 69
The case expanding mechanism 61 is pushed and moved in the direction of the arrow x1 as the cartridge 1 is inserted. Note that the expansion arm 69 enters into the case 2 reliably due to the action of the tapered portion 14 provided at the opening of the case 2. At this time, the tips of the expanding arms 59 are at positions corresponding to the windows 12 of the case 2, respectively. Case expansion mechanism 51
When the expansion arms 59 move, the expansion arms 59 rotate in the direction of opening each other.
The case 2 is locked to the end locking part of the window 12 fully expanding arm 69.
When the n1 case 2 is pushed and expanded, the n1 case 2 is expanded. Hereafter case 2
is in an expanded state! , it is inserted in the direction of arrow X1. Here, since the case 2 is provided with the recess 17 as described above, the above-mentioned opening operation is performed by inserting the case 2 with a relatively light force. In addition, in this state -C1, the protrusion 24 of the lid 3 mentioned above is engaged with the recess 16 of the case 2, so even if the cartridge is pulled out halfway, the lid 3 will move together with the case 2, and only the lid 3 will remain in the 111 position. )・It will not be left behind in the middle of the device 6o. Further, as the case expansion mechanism 61 moves in the direction of the arrow X1, the roller 130 provided in the case expansion mechanism 51 rotates the side cam 163 in the direction of the arrow R and locks it in this position. (Lock part shown - W) As a result, the main arm 165 rotates in the direction of arrow S against the charging spring 166, and connects the connecting pin 112 and the connecting plate 111. Fork plate 108' (ring 10 through H
2 is lowered and moved to a position where it does not obstruct entry of the record case 1.

When the record case 1 is inserted into the playback device 60 together with the case expansion mechanism 51, the release members 8 disposed on the left and right
0.8 oa enters the left and right openings 1-1 of the record case 1, presses the inclined part 26 of the arm 26 of the lid 3, and releases the arm 2.
6 are respectively displaced inward, and the protrusion 24 and the recess 16 of the case 2
The engagement with is released. The connection between case 3 and case 2 is resolved.

At this time, the abutment member 92 is in the state shown in FIG. 8A, and does not obstruct the progress of the beams 57 and 58.

As the engagement between the lid 3 and the case 2 begins to disengage, the flange portion 18 of the lid 3 presses the suppressing members 77, 77&ff.
L causes the bushing lever 72t72fL to rotate in the direction of the arrow T, and the connecting pin 81 moves while contacting the cam groove 83 of the lock cam 86. When it reaches the 5-shaped portion 83 & of the cam groove 83, the lock cam 85 moves in the direction of the arrow T due to the force of the spring 85a. It rotates in the H direction, and the bushing levers 72, 72a are locked at the specified positions. This bush lever 72'y 72
With the rotation of &, the latching member To rotates in the direction of the arrow E by the cam groove 75 and engages with the notch 19 of the lid 3, so that the lid 3 is in the latched state.

Also, the upper and lower clamp arms e4. e S RHtJl
, "By rotating the cock cam 85 in the H direction, 1
A sharp engaging portion 84 provided at the tip of the cam 85 engages with the stopper pin 64C to restrict the movement of the upper clamp arm in the direction of arrow C.
The state of the mouth.

In the state shown in FIG. 9A, the abutment member 92 is in the state shown in FIG.

Next, when you pull out record case 1 in the direction of arrow X2,
The lid 3 and the record 6 are left at the back of the playback device 5o,
Only case 2 moves with the expansion mechanism, L/ = 7-
Toro is relatively better than case 2. At this time, since the opening 7 of the case 2 is expanded, the record 5f will not be damaged. Before the record 6 is completely removed from the case 2, the side cam 163 is moved by the aforementioned roller 130.
When the lock of 7L1 is released, the main arm 165 of 7L1 rotates in the direction of arrow T by the charge spring 166, and the ring 1
σ wo rises, and the ring 102 is held in the center hole of the record 6. After that, when the case 2 is completely pulled out, the lid 3 is attached to the stopper members 54, 54, and the record 6 is attached to both clamp arms 63, 64 and the ring 1 of the turntable section.
It is in the state shown in Fig. 8A, where it is supported at 02 and the support length I is at the predetermined position. In this state, the lid 3 is held by the stopper members 54, 541L and fixed via the flange portion 18 f'L, and the record 6 is stably supported by both clamp arms 63, 64 and the ring 102. .

When the next play operation is performed, the morph 172 is reversed, the sub arm 160 is rotated along the cam groove 154a, the main arm 166 is rotated in the direction of arrow S, and the connecting bin 112. The ring 102 is lowered via the connecting plate 111° and the fork plate 10B'i, and the record 6 is attached to the turntable 5.
(Although the explanation was omitted in the main text, the side clamp arm 63 is transferred to the cam plate 164 due to the
(It is designed to open and close on a moving basis.) When the record 6 is transferred to the turntable 52, the solenoid 1
79 is de-energized, the n1 clutch portion 170 is engaged with the carriage drive system 156 as shown in FIG. Then, when the 1st reel is completed, the motor 172 is reversed, and the carriage 120 is transferred in the direction of arrow P to a predetermined position.
79 is inserted into the ring 111, and the clutch part 170 is engaged with the record drive system 151 as shown in FIG.
02 and raised to the fixed position. Incidentally, when this clutch section 170 is switched from the carriage drive system 155 to the record drive system 161, a rack section 17γ provided on the clutch plate 178 with a diameter of 1° engages with the gear 156 to prevent the gear ridge drive system from rotating 1650 degrees. Carriage 12
0 will not appear at the predetermined position.

When the record 6 rises to a predetermined position, it returns to the state shown in FIG. 9A.

When the empty case 2 is inserted in the state shown in FIG. 9A, the beam 5T comes into contact with the abutting member 92 in the state shown in FIG. 8 before the case 2 moves completely to the back. When the case 2 further advances from this state, the release lever 8 is rotated in the direction of the arrow M via the abutment part 92, and the auxiliary lever 9° is accordingly moved in the direction of the arrow J, and the lock cam 85 is rotated in the direction of the arrow J. The connecting pin 78 rotates in one direction, and the connecting pin 78
As it moves away from the lettered portion B3a, the engagement between the engaging portion 84 and the stop bar pin 640 is released. For this series of actions:
The spring force (
At the same time, the record 6 is released from being held by the clamp arms 63 and 64 and relatively enters the 2'L-C case 2. After that, if you pull out the case 2 in the direction of arrow X2, the record 6 and the lid 3 will be stored in the case 2 fL f
Ejecting and cleaning in state C 0 Although one embodiment of the reproducing apparatus according to the present invention has been described above, the structure is not limited to the configuration described in B below. for example,
The transfer hand 1 of the carriage 12o (7 and the rack 121
Instead, wires, belts, etc. may be used.

Effects of the Invention The present invention can bring about the following effects.

(1) Conventionally, separate motors were used for driving the record up and down and for the carriage drive system, but now it can be configured with a single motor.

? ) Since the drive is switched by one motor, there is no malfunction such as the carriage coming out when the record is rising.

(3) By selecting all reduction gear stages, movements such as lowering the first gear and sending out the carriage can be performed by turning the solenoid ON and OFF without changing the rotation direction of the motor.
This can be done only with F.

[Brief explanation of drawings]

Fig. 1 is a cutaway perspective view of an example of a record case used in the present invention, Fig. 2 is a perspective view of the same, Fig. 3 is a
I and C are the front view and top view of the lid of the same record case,
(FIG. 4 is a partially cutaway perspective view showing one embodiment of the recording disk reproducing apparatus of the present invention, FIG. 5 is a perspective view of the same part, and FIG. 6 is a side sectional view of the same main part. , Figure 7 (a) 2 is a plan view of the same essential parts in different operating states; Figure 8 (a) 5 is a schematic side view of the same essential parts in different operating states;
FIG. 9A is a plan view of the same main part, and the mouth is a side view of the same main part. 6...Record disc, 62...Turntable, 102...Ring, 120...
Carriage, 172...Motor, 170...
...Clutch section.

Claims (1)

[Claims] The recording disk is moved up and down coaxially with the rotation axis of the turntable, and in the first state in which it is descending, the recording disk is placed on the turntable, and in the second state in which it is rising, the recording disk is placed on the turntable. an elevating means supported above; a scanning body transporting means detecting a signal from the recording disk on the turntable; and a first elevating means driving the elevating means between a first state and a second state. The drive means and the second drive means for driving the scanning body transport means in the radial direction of the recording disk are switched and driven by the same drive source, and when the first drive means is driven, the second drive means is driven. A recording disk reproducing apparatus r1' characterized in that it has a drive source [uJ switching mechanism 'fr: which operates to bias the means in a braking direction.