JPH04114355A - Magazine storage type disk player - Google Patents

Abstract

PURPOSE:To eliminate a need to use a disk as a single substance to prevent deformation or damage of the disk by loading the disk stored in a magazine and automatically pulling out the disk from this magazine in a device. CONSTITUTION:When a disk D is pulled out from a magazine M, the magazine M is held on a moving table A and is projected together with the table A in this state and is held in a disk reproducing unit. The magazine M is ejected with the table A in the storage area, and at this time, the magazine is projected out of the device as a single substance or is held on the table A and is projected to enable a user to surely confirm whether the magazine M is in course of taking-out or is ejected. Thus, the malfunction of erroneous extraction of the magazine being in course of disk pulling-out operation or the like and the use of the disk as a single substance are eliminated to prevent deformation and damage.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a disc player that plays back discs such as compact discs, and particularly relates to a disc player that plays discs such as compact discs, and in particular, a disc player that plays discs such as compact discs, and in particular a disc player that stores discs in a magazine that is housed in the same housing as a disc playback unit. This invention relates to a magazine storage type disc player.

[Prior Art] Recently, in place of tape players, devices for playing compact discs have been used as audio equipment. Similarly, in-vehicle audio equipment that can play compact discs has become widespread.

In conventional compact disc players for vehicles, a slit for inserting a disc is formed on the surface of the player, and when the disc is directly inserted into this slit, the disc is pulled in and clamped by an internal clamping mechanism.
A performance is about to take place.

[Problem to be Solved by the Invention 1] However, in the conventional method of inserting a compact disc into a slit, discs that are not being played are often left in the car.

In such a case, when the temperature inside the car increases in the summer, problems arise such as the disk being deformed by the heat or the exposed recording surface being damaged.

There is also a so-called disc changer, which stores compact discs in a magazine and handles them, but since these disc changers select and play a large number of discs, such as 6 or 8 discs, they have a large external size. It cannot be installed inside the car and is used by being installed in the trunk room.Therefore, the disc magazine also needs to be loaded by opening the trunk compartment, which is cumbersome to handle.Furthermore, conventional disc changers are expensive. Furthermore, it requires both a disc selection device installed in a trunk room or the like and an operating device placed inside the vehicle, resulting in a large-scale system that requires time and effort to install in a vehicle.

The present invention solves the above-mentioned conventional problems, and allows a magazine in which a disc is inserted to be directly inserted into a player, and then a disc can be pulled out from the magazine. An object of the present invention is to provide a magazine storage type disc player in which a magazine ejecting operation and a magazine ejecting operation can be clearly distinguished.

[Means for Solving the Problems] A magazine storage type disc player according to the present invention includes a disc reproducing unit equipped with a rotation mechanism for rotating a disc and a pickup facing the disc, and a disc reproducing unit located at a position within the device that overlaps with the disc reproducing unit. A movable table that reciprocates between a certain storage area and a position protruding from this area to the outside of the apparatus and holds a magazine, and the movable table protrudes from the storage area when a disk in the magazine is pulled out. a drive mechanism; a take-out/loading mechanism that pulls out a disc from a magazine held by the movable table and loads it into the disc playback unit when the movable table is moving out of the storage area; and a locking mechanism for locking the magazine within the movable table. The present invention is characterized in that a lock/eject mechanism is provided for unlocking the magazine and ejecting the magazine from the movable table when the movable table is in the storage area.

Further, in the above means, the lock/eject mechanism includes a lock projection provided on the movable table and fitted to the bottom of the magazine, a locking elastic member that biases the lock projection in the fitting direction, and a locking elastic member that is also mounted on the movable table. an eject protrusion that is provided and contacts the magazine in a locked state; an eject elastic member that presses the eject protrusion in the magazine ejection direction; and a direction that opposes the lock protrusion to the lock elastic member when the movable table is in the storage area. It consists of a switching body that drives the switching body and a drive section that operates the switching body.

[Operation] In the above means, the magazine into which the disk is inserted is loaded into a moving table that is being moved to a storage area within the device;
The magazine is held and locked on this moving table. When pulling out a disk from the magazine, a movable table holding the magazine projects outward from the storage area of the apparatus, and in this state, the disk is pulled out from inside the magazine and held in the disk playback unit. After the disk is pulled out, the movable table holding the magazine is returned to the storage area. Also, magazine ejection is
This is done by the lock/eject mechanism while the moving table is pulled into the storage area. In this way, in the operation of pulling out a disk from a magazine, the magazine is held on the movable table and protrudes together with the movable table, and the ejection of the magazine is performed with the movable table being retracted into the storage area. It protrudes outward from the device. Therefore, the user can reliably recognize whether the magazine is being ejected or whether the magazine has been ejected, depending on whether the magazine is ejected by itself or is ejected while being held on a moving table. This prevents erroneous operations such as accidentally pulling out a magazine during operation.

In addition, since a lock protrusion and an eject protrusion are provided on the movable table, when the movable table is moving to the storage area, by driving the lock protrusion from the outside of the movable table with a switching body, the ejecting protrusion can be moved into the storage area. The magazine can be easily ejected from the movable table located at.

[Example] Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is an exploded perspective view of a CD player unit equipped with a disc changer, Figure 2 is an exploded perspective view of a CD magazine loaded into this CD player, and Figures 3 and below show details of each mechanical part. be.

In FIG. 1, reference numeral A designates a moving table that supports a magazine M. As shown in FIG. A selection mechanism B for selecting a desired disc is mounted on the rear side of the moving table A. C is an upper unit that supports the movable table A so that it can move forward and backward. E is a lower unit provided below the upper unit C.

A connecting hole fa) is formed in the side surface of the upper unit C, and a female screw hole fbl is formed in the lower unit E.
and the female threaded hole fb) are fixed by the fixing screw, so that the upper unit C and the lower unit E are stacked vertically and fixed to each other. In this assembled state, width 170mm, height 5C1mm, depth 180mm
It has a so-called L-Dean size, and can be mounted in the same mounting space as a car radio or car stereo on an automobile dash board.

First, the structure of the magazine M will be explained with reference to FIG. The magazine M stores a plurality of disks D, and in the illustrated embodiment, three disks D are stored. This magazine M is composed of a case 1 and a cover 2. When the case 1 and the cover 2 are fixed, an opening 3 is formed to the right in FIG. 1, and the other three sides are box-shaped. As shown in FIG. 11, three movable plates 4.5.6 are housed in the magazine M. The space between the bottom surface 1a of the case 1 and the movable plate 4 is the first stage disk storage space S1, the space between the movable plates 4 and 5 is the second stage disc storage space St, and the space between the movable plates 5 and 6 is the 3rd stage disc storage space S1. This is the disk storage space S3 in the third tier. Furthermore, the uppermost movable plate 6 and the cover 2 are in substantially close contact with each other. A disk D is placed in each of the three disk storage spaces S, , S, , S, above.
is stored. FIG. 2 is an exploded perspective view showing a state in which the cover 2 and the uppermost movable plate 6 are removed. As shown in FIG. 2, a shaft 7 is integrally protruded from the bottom surface on the left side of the case 1, and each of the movable plates 4, 5, 6 is rotatably supported on this shaft 7. There is. FIG. 2 shows a state in which the support hole 5a of the movable plate 5 is rotatably supported by the shaft 7, and the support hole 6a of the movable plate 6 is inserted into the shaft 7. A bottle 8 is provided protruding from the bottom surface 1a of the case 1 in a position aligned with the shaft 7, and springs 4b, 5b,
6b is applied, and the urging force causes each movable plate 4.5.6
is biased in the α direction. In addition, discharge bins 4c, 5c, and 6c are provided facing downward at the rear of each movable plate 4.5.6, and a pressing member 4d is provided at the front left side of each movable plate 4,5.6.
, 5d, 6d and the take-out knobs 4e, 5 integrated therewith.
e and 6e are provided. The positional relationship among the discharge bin, the pressing member, and the take-out knob will be explained with respect to the uppermost movable plate 6 shown in FIG. The ejection bin 6c that protrudes downward from the rear of the movable plate 6 is located at the rear of the third stage disk storage space S3, and is located at the rear end of the disk D stored in this space S3 at the position shown in (C). opposite. In addition, when the disc D is housed in the space S, the pressing member 6d is moved to the fdl in front of the disc D.
Opposite the position shown. For convenience of explanation, Figure 2 shows
A state in which the pressing member 6d faces the disk D is shown by a chain line.

Inside the magazine M, the movable plate 6 is rotated in the α direction by the urging force of the spring 6b. Therefore, when inserting the disk D into the space S3 from the opening 3 side, the suppression member 6d is once pushed by the insertion force, and the movable plate 6 is
The disk D escapes in the direction and is inserted into the space S3. After insertion, the movable plate 6 moves at α due to the urging force of the spring 6b.
The pressing member 6d presses the position (dl) of the disk D, preventing the disk D from being pulled out within the space S3. When the disk D within the space S3 is selected and ejected, The pressing member 6d is driven in the β direction by the selection mechanism B described later.At this time, the ejection bin 6
C presses the portion (cl) of the disk D in the direction of the opening 3.The movement of the movable plate 6 at this time is a circular movement in the β direction about the axis 7, and this movement causes the disk D to The disk tip slides on the inner wall 1b of the case L, etc., and the disk tip protrudes from the opening 3.This disk insertion and ejection operation is the same in the other disk storage spaces S1 and 82.In the space S, the movable plate 4, the disk is pulled out (stopped and ejected), and within the space S2, the movable plate 5 performs the above operations.

Note that the extraction knobs 6e and 5e integrated with the pressing member 6d
Further, a take-out knob 4e provided on the lowermost movable plate 4 projects to the side of the case 1. These take-out knobs 4e, 5e, and 6e protrude into the side of the cover 2 where the recess 2a is formed. Naori bar 2 has a recess 2
There is an inclined surface 2 in front of the part where a is provided (on the left side of the figure).
b is formed. The above-mentioned take-out knobs 4e, 5e.

6e is used when manually ejecting the disk D.

That is, when exchanging a disk in the magazine M, the ejection knobs 4e, 5e, 6e are operated with fingers to rotate the movable plate 4.5.6 in the β direction, and the ejection bins 4c, 5 are removed.
c, 6c move the desired disk D into spaces S, , S,
,S,.

As shown in FIG. 11, each movable plate 4, 56 has an inclined surface 4f on its edge on the opening 3 side.

5f and 6f are formed. In the disk ejection/insertion mechanism described later, the disk D is returned from slightly above into the spaces S1 and S2 as shown by the arrows in FIG. Movable plate 4, by surfaces 4f, 5f, 6f
The opening area at the front edge of 5.6 is widened to make it easier to guide the disk D into the space.

Further, as shown in FIG. 2, a window is formed on the rear end surface (the surface facing outside of the device) ld of the case 1 of the magazine M.
A lens IC is attached to this window so that the number of discs stored inside or the space in which the discs are stored can be confirmed from the outside.

The lens IC mounted on the rear end surface 1d of the magazine M on the opposite side to the opening 3 is formed of a light-transmitting member. This light-transmitting member is transparent or semi-transparent and has a structure in which light is easily reflected diffusely inside. As shown in FIG. 4 (FB), when the magazine M held on the moving table A is housed in the upper unit C, the light emitting element 9 faces the lower part of the lens lc. The lens IC can be illuminated by the light emitting element 9. In this device, when a disk is replaced, the magazine M together with the movable table A temporarily protrudes from the upper unit C. For example, just before the magazine M protrudes from the upper unit C, the light emitting element 9 is blinked to flash the lens 1c to illuminate the lens 1c. The user can be informed of the operating state, and the user can be informed of the functional feeling of operation, and the product value can be increased. The entire rear end surface may be illuminated by a light emitting element.

Next, the structure of the upper unit C including the moving table A and the selection machine side B will be explained.

Figure 3 is a plan view of the upper unit C, Figure 4 (Al (B
1 is a side view of each operation.

The movable table A has a bottom plate 11a, side plates 11b bent on both sides of the bottom plate 11a, and an upper guide plate 11c bent from the upper edge of the side plate 11b. Further, a door 19 is provided between the front sides of the side plates 11b. This door 19 is supported by a shaft 19a so as to be freely openable inward. In FIG. 1, the movable table A protrudes from the upper unit C, but as shown in FIG. The door 19 is located almost flush with the front surface of the nose portion of the vehicle. That is, when the movable table A is retracted, the insertion opening for the magazine M is formed in the portion where the door 19 is formed. The magazine M is inserted through this insertion port when the movable table A is inserted into the upper unit C. The door 19 is then maintained in an inwardly rotated state (see FIG. 7).

The inserted magazine M is locked within the movable table A by a locking mechanism to be described later, and from then on, the magazine M and the movable table 8 are in a unified state until it is ejected.

As shown in FIGS. 1 and 3, a pair of sliding holes lid are bored in the bottom plate 11a of the movable table A, and two lock bins 12 protrude from the sliding holes lid. Lock levers 13 each supporting a pair of lock bins 12 are provided on the lower surface of the bottom plate 11a. A spring 14 is interposed between the lock lever 13 and a protrusion 11e provided at the inner end of the bottom plate 11a, and this biasing force causes the lock lever 13 and each lock bin 12 to
(is biased in the el direction. Also, the lock lever 13
A protrusion 13a is provided at the upper side in FIG. 3. Further, a guide hole 11f having an arcuate trajectory is formed in the bottom plate 11a of the movable table A, and an eject bin 15 projects from this guide hole 11f. An eject lever 16, which supports the eject bin 15, is supported on the lower surface of the bottom plate 11a so as to be rotatable about the bin 17. A spring 18 is applied between the eject lever 16 and the protrusion 11g on the inner end of the bottom plate 11a, and the eject lever 16 and the lock pin 15 are urged in the f1 direction by the urging force of the spring 18.

As shown in FIG. 3, the lower surface of the bottom plate 1a of the magazine M loaded on the moving table A has a guide slope 1e.
A lock groove 1f following this, and a lock groove 1h following the guide slope 1g are formed. Also, a suppression step 11 is formed on the side of the guide slope 1g. These guides 1e, 1g , the lock grooves 1f, lh, and the pressing step 11 are formed on the lower surface of the bottom surface 1a of the case 1 of the magazine M, and their shapes do not appear on the inner surface of the case 1.

Lock when magazine M is loaded on moving table A,
The ejecting operation for ejecting the magazine M from the movable table A is performed with the movable table A being drawn into the upper unit C, as shown in FIG. In this state, when the magazine M is inserted by pushing open the door 19, the guide slope 81 on the lower surface of the case
When the lock pin 12 is moved in the direction opposite to tel by e and 1g and further inserted, the spring 1
The lock lever 13 is pushed in the direction (e) by the force 4,
The lock bin 12 enters the lock grooves 1f and 1h, and the magazine M is locked within the moving table. At this time, the eject bin 15 is pushed in the opposite direction to (fl) by the pressing step 1i, and the biasing force of the spring 18 is acting in the direction to eject the magazine M.The movable table A is pulled into the upper unit C. When the protrusion 13a of the lock lever 13 is pushed backwards in the opposite direction to (e) in the state described below, the lock bin 12 will close to each of the locks 1f and 1.
h, the lock is released, and the eject bin 15 pushes the pressing step 1i by the biasing force of the spring 18.
Magazine M is ejected from inside moving table A to the left in FIG.

As shown in FIG. 1, the cover 21 of the upper unit C is formed by bending a sheet metal into an inverted U-shape. A pair of parallel guide grooves 21b are formed in one side plate 21a. A sliding pin 22 is provided on the outer surface of the side plate 11b of the movable table A, and the sliding pin 22 is inserted into the guide groove 21b.
b, and is movably guided in a direction in which it retracts into the cover 21 and protrudes. A guide groove is similarly formed on the opposite side plate 21c provided on the navigating bar 21, and the sliding bin provided on the other side plate 11b of the movable table A similarly slides on this side plate 21c side. freely guided.

As shown in FIGS. 1 and 4 (Al), the cover 21
A feed gear 24 supported by a shaft 23 is provided at the lower edge of the side plate 21a. On the other hand, a rack 11k is formed at the lower edge of the side plate 11b of the movable table A, and this rack llk meshes with the feed gear 24. When power is transmitted from the lower unit E located below to the feed gear 24 through a path described below, the power is transmitted to the rack 11k.
, the moving table A is driven in the direction of retracting into or protruding into the cover 21 of the upper unit C. A feed gear is similarly provided on the side plate 21c on the opposite side of the guide bar 21, and this feed gear applies a feed force to the side plate 11c of the movable table A on the side plate 21c side as well.

1 and 4 (A) (As shown in Bl, there is a lock plate 2 on the side plate 21a of the cover 21 of the upper unit C.
6 is rotatably supported by a shaft 27, and this lock plate 26 is biased counterclockwise by a spring 28. Notch 21 at the upper end of side 1ff221a
d is formed, and the bent portion 26a at the tip of the lock plate 26 intervenes within this notch 21d. When the lock plate 26 is rotating counterclockwise as shown in FIG.
The movement of the moving table A into the cover 21 is prevented from moving into the cover 21 . As will be described later, when the disk D in the magazine M is selected and pulled out, the state shown in FIG.
), the movable table A and the magazine M protrude to the left in the figure with respect to the upper unit C, but when this selection and withdrawal operation is performed, the lock plate 26 is bent as described above. Since the portion 26a faces the rear end of the movable table A, even if the movable table A is accidentally pushed, it is prevented from entering the upper unit C. Furthermore, when the movable table A is retracted into the cover 21, the lock plate 26 is driven clockwise, and the bending portion 2
6a comes off from the rear end of movable table A, and
can move into the cover 21.

The position of the lock plate 26 is controlled in relation to the position of the lower driven roller 31 used when pulling out the disk D from the magazine M. That is, Fig. 4 (Al
As shown in FIG.
is held by a roller holder 32, which is rotatably supported by a pin 33 on the side plate 21a of the cover 21 and the opposite side plate 21c. A bin 34 provided on the roller holder 32 and a bin 35 provided on the lock plate 26 are connected to each other by a connecting link 36. The height position of the lower driven roller 31 is determined by the height position of the discharge/insertion roller 41 that contacts this roller 31 from above. The locking plate 26 is urged counterclockwise by the subunong 28, and this urging force is transmitted from the connecting link 36 to the roller holder 32, and the roller holder 32 is moved counterclockwise, that is, when the lower driven roller 31 is pressed against the discharge/insertion roller. 41 in the direction of pressure contact. Therefore, when the ejection/insertion roller 41 is changed up or down by -9, the rotational posture of the roller holder 32 changes accordingly, and the lock plate 26 is moved through the connection link 36.
posture is controlled. That is, when the ejection/insertion roller 41 descends, the lock plate 26 rotates clockwise, and when the ejection/insertion roller 41 ascends, the lock plate 26 rotates counterclockwise.

Further, as shown in FIG. 4+Bl, when the movable table A enters the cover 21, the bent portion 26a of the lock plate 26 slides on the upper edge of the side plate 11b of the movable table A, and the lock plate 26 is largely rotated clockwise, the roller holder 32 is driven clockwise via the connecting link 36, and the lower driven roller 31 is in a state of escaping downward. That is, the rollers 31 and 41 eject and insert the disk D in the magazine M as shown in FIG.
In the state shown in A), when the other movable table A is inside the cover 21 (this is mainly a playing state), the lower driven roller 31 is moved largely downward. It has become.

Next, the structure of the selection mechanism B located at the upper rear side of the moving table 11 in FIG. 3 will be explained.

FIG. 5 shows V in FIG. 3 for explaining the structure of selection mechanism B.
-V sectional view.

As shown in FIGS. 3 and 5, the ejection/insertion roller 41 is supported by a swing lever 42. As shown in FIGS. A mechanism base 40 is extended and fixed to the side plate 11b of the movable table A shown on the upper side of FIG. is rotatably supported. Further, as shown on the lower side of FIG. 3, the other side of the swing base 42 is rotatably supported by a pin 44 on the side plate 11b of the moving table A on the lower side of the figure. As shown in FIG. 5, the mechanism base 40 is provided with an elevating block 45 that moves in the vertical direction. The bin 4 provided on this lifting block 45
6, a roller connection lever 47 is rotatably supported;
The tip of this roller connection lever 47 is connected to the shaft of the ejection/insertion roller 41 .

In FIG. 5, the lifting block 45 is guided in the lifting direction by a guide shaft 53 extending in the vertical direction of the figure. Further, a nut member 48 is held on the lifting block 45, and this nut member 48 is threaded onto a drive screw 49.

The drive screw 49 is provided parallel to the guide shaft 53, and a lifting motor M is provided on the mechanism base 40, on which a worm wheel 51 is fixedly provided below, and the rotation axis of this motor M1 is Warm 5 installed in
2 is engaged with the worm wheel 51. When the worm wheel 51 and the drive screw 49 are driven by the motor M1, the elevating block 45 moves up and down by a distance corresponding to the number of rotations thereof. Due to this lifting/lowering operation, the ejection/insertion roller 41 is also driven up/down via the roller connection lever 47, which causes the swinging lever 42 to swing around the shaft 43, and the ejection/insertion roller 41 is positioned in the vertical direction in the figure. It will be done.

The ejection/insertion roller 41 is driven to swing around the shaft 43 by the motor M1, whereby the ejection/insertion roller 41
moves to each position shown on the left side of FIG. Fourth
In the state shown in Figure (Al) and Figure 11, the lower driven roller 31 is in pressure contact with the ejection/insertion roller 41 due to the urging force of the spring 28 that urges the lock plate 26. The lower driven roller 31 follows. In FIG. 11, when the ejection/insertion roller 41 is at a height of (0), it is the original position, (1) is the first stage selection position, and (
2) is the 2nd stage selection position, and (3) is the 3rd stage selection position. The original position indicated by (0) above is a position used for ejecting the magazine. Note that the ejecting operation is performed only in the state shown in FIG. In addition, (1) shows the ejection/insertion position of the disk D in the first stage disc storage space S in the magazine M, (2) shows the ejection/insertion position of the disc D in the second stage disc storage space S, ( 3) is the ejection/insertion position of the disk D in the third stage disk storage space S. Each of these positions is performed by controlling the rotational speed of the motor M1 shown in FIG.

A detection rotating body 55 for this control is rotatably provided below the guide shaft 53 shown in FIG. Teeth are formed around the detection rotating body 55, and these teeth mesh with a gear 54 that is integrated with the worm wheel 51. As shown in FIG. 3, two large detection forces S are formed on the detection rotating body 55 during one rotation, and these are detected by an optical detector 56. Further, a detection arm 45a extending to the right in FIG. 5 is formed on the lifting block 45, and a detection switch SW is opposed to the lower side of this detection arm 45a.

The drive screw 49 is driven by the motor M1, the lifting block 45 is lowered, and the detection arm 45a is activated by the detection switch SW.
, when turned on, the ejection/insertion roller 41 is in its original position as shown by (b) in FIG. When the worm wheel 51 is driven by the motor M1 to raise the elevating mechanism 45 from its original position, the detection rotating body 55 is driven by the gear 54 integrated with the worm wheel 51, and the optical detector 56 detects each detection hole. I get the output. When two detection holes are formed in the detection rotation body 55, for example, when the detection rotation body 55 rotates from the original position and the optical detector 56 obtains a detection output of 11 pulses, the first stage of the ejection/insertion roller 41 is selected. It becomes position (1).

Furthermore, when a detection output of 7 pulses is obtained from this position, the ejection/insertion roller 41 becomes the 2nd stage selection position (2), and when a further 7 pulses are obtained, it becomes the 3rd stage selection position (3). The detection output from the optical detector 56 allows the vertical position of the lifting block 45 and the position of the ejection/insertion roller 41 to be controlled.

As shown in FIGS. 3 and 5, a motor M2 is provided at the right end of the mechanism base 40 in the drawing. The power of this motor M is transmitted from the worm 61 to the worm wheel 62, and further transmitted from the gear 63 to the gear 64. This gear 64 is connected to a roller drive gear 66 by a clutch mechanism having a spring 65. This gear 64 and roller drive gear 66 are rotatably provided on the shaft 43 that supports the swing lever 42. The power of the roller drive gear 65 is transmitted to a driven gear 69 fixed to the shaft of the discharge/insertion roller 41 via reduction gears 67 and 68 provided on the side surface of the swing lever 42 . That is, the power of the motor M is transmitted to the ejection/insertion roller 41 through each gear and the clutch, and as the ejection/insertion roller 41 rotates counterclockwise in FIG. 11, the disk D in the magazine M is taken out. The disk D is returned into the magazine M by rotation in the direction.

Further, the gear 71 integrated with the gear 64 has a mechanism base 4.
A transmission gear 72 supported at 0 is in mesh with the transmission gear 72, and a gear 73 integrated with this transmission gear 72 is in mesh with a switching gear 74 having a larger diameter than the other gears. As shown in FIG. 5, this switching gear 74 is rotatably supported by a shaft 76 provided on the mechanism base 40, and a cam 75 is integrally provided with this switching gear 74. This cam 75 is the third
It is integrally formed in the upper part of the figure, that is, on the back side of the switching gear 74 shown in FIG. The shape of this cam 75 is a partial disk shape.

Further, as shown in FIG. 3, a drive lever 81 is supported on the inner surface of the mechanism base 40 so as to be movable in the fhl-(i1 direction.This drive lever 81 is not shown in FIG. They are shown separately in FIG. 6(A).Elongated holes 81a and 81b are formed in the drive lever 81.One of the elongated holes 81aLt is guided by the shaft 76 supporting the switching gear 74. , and the other long length 81b is guided by a guide pin 82 provided on the mechanism base 40, so that the drive lever 81 can move freely in the directions (h) to (i).
3 (biased in the hl direction. Drive lever 81
A drive piece 81c is bent at the right end in the figure, and this is opposed to the right side of the cam 75. Also, the drive lever 81
A holder 81d is bent at the left end in the figure. Further, another plate material 84 is stacked on the right side of this holder 81d,
This plate material 84 is provided with a bent piece 84a. Fifth
As shown in the figure, the mechanism base 40 is provided with a guide shaft 85 parallel to the drive screw 49.
A switching body 86 is supported by the switch 5). This switching body 86 is adapted to be able to rotate as far as the lifting gear 451 (which is held in place and moves up and down together with the guide shaft 85). As shown in Figure 3, one arm 86a of the switching body 86 is connected to the holder 81d at the left end of the drive lever 81.
and the bending piece 84a, and the drive leno<-8
1 in the (i) direction, the switching body 86 is driven clockwise in the third figure. Further, the switching body 86 is provided with a driving arm 86b. This drive arm 86b is the bottom plate 11 of the movable table A in FIG.
The protrusion 13a of the mouth/clever lever 13 provided on the lower surface of a
is facing. FIG. 5 shows the position of the elevating block 45 at the original position (0) of the ejection/insertion roller 41 shown in FIG. 11. The elevating roller 45 is raised by the power of the motor Ml, and the ejecting/inserting roller 41 is moved to the eleventh position.
When moving to the 1st stage selection position (11th or 633rd stage selection position (3)) shown in the figure, the switching body 86
The driving arm 86a is disengaged upward from the protrusion 13a of the lock lever 13a, and is in a position facing the inside of each of the pressing members 4d, 5d, 6d (see FIG. 2) of the loaded magazine M. Also, the drive lever 81
A regulating body 87 is rotatably supported by a holder 81d provided on the left side of the holder 81d, and is urged by a spring 88 so as to maintain the posture shown in FIG. When the magazine M is loaded, this regulating body 87 presses each of the pressing members 4d, 5d, 6d and the ejection knobs 4e, 5e, shown in FIG.
6e, and prevents each movable plate 4.5.6 in the magazine M from rotating in the β direction during operations other than disk ejection or insertion, and prevents the disk D in the magazine M from rotating due to impact or the like. This prevents it from jumping out from the opening 3.

In the states shown in FIGS. 3 and 6(A), the drive lever 81 is moved by the spring 83 (in the h1 direction), but when the switching gear 74 rotates 360 degrees clockwise or counterclockwise from this state, At the beginning of the operation, the drive lever 81 is driven in the fi1 direction by the cam 75, as shown in FIG. and the regulating body 87 is tilted clockwise by the driving arm 86b of the switching body. At this time, if the height position of the lifting block 45 is the original position (0), the lock lever 13 of the moving table A is driven by the drive arm 86b of the switching body 86, and the lock lever 13 of the moving table A is driven from the 1st stage switching position (1) to the 3rd stage switching position. In any case up to (3), the driving arm 86b causes the pressing member 4 shown in FIG.
d, 5d6d is driven, and the movable plate 4 or 5
Or 6 is driven in the β direction, and the discharge bin 4c.

The disk D in the magazine M is ejected from the opening 3 by 5C or 6C. When the switching gear 74 further rotates, the position of the drive lever 81 remains the same after fBl in FIG. 6, but after rotating 360 degrees, the drive lever 81 returns to the position shown in FIG.

Note that the power of the motor M is not only transmitted to the switching gear 74 but also to the ejection/insertion roller 41 as described above.
Therefore, when the switching gear 74 is rotated 360 degrees by the motor M2, the ejection/insertion roller 41 is also driven. The relationship between the force transmission paths on both sides is as follows.

First, in the operation of removing a disk from the magazine M, the ejecting/inserting roller 41 continues to rotate counterclockwise by the motor M, and at the same time, the switching gear 74 rotates 360 degrees clockwise. Therefore, the drive lever 81 is initially pulled in the (it force direction), the switching body 86 rotates clockwise, and remains in the same position.
When rotated 360 degrees, the drive lever 81 returns to the fh) direction, and the switching body 85 returns to the position shown in FIG. When the disk is returned to the magazine M, the motor M2 rotates in the opposite direction, and the ejection/insertion roller 41 continues to rotate clockwise, and at the same time, the switching gear 74 rotates 360 degrees counterclockwise. At this time as well, the drive lever 81 is pulled in the (it force direction), and when it rotates 360 degrees, it returns to the (h) direction.

Next, the structure of the lower unit E will be explained.

FIG. 8 shows a plan view of the lower unit E. The base 100 of the lower unit E has a bent part 100a formed at the upper side in FIG. 8, and a bent part 100b bent at a right angle at the lower side in the figure. A sub-base 101 is fixed to. The side plates 21a and 21c of the cover 21 of the upper unit C are screwed into female threaded holes (bl is in two places on the side plate 100a,
One location is provided on the side plate 100b and one location is provided on the sub-base 101. Dampers 102a and 102b are supported inside the sub-base 101, and dampers 1020 and 102d are provided at the bent portions 100C and 100d of the base 100 shown in the upper part of FIG. 102a to 102d are provided so as to float elastically. That is, the respective support shafts 104a and 1 provided on the chassis 103 of the reproducing unit F
04b, 104c, and 104d are the dampers 102a to 1
02d. Each damper is typically a rubber bag filled with air or other fluid. Further, as shown in FIG. 1, the chassis 103 of the regeneration unit F includes a plurality of coil springs 10.
It is suspended from the base 100 or the sub-base 101 by 5a, 105b, and 105c. The regeneration unit F is supported via the damper and coil spring, thereby reducing the influence of vehicle body vibrations on the regeneration section.

As shown in FIG. 1, the chassis 103 of the reproduction unit F
A turntable 106 is provided approximately at the center of the screen. This turntable 106 is for supporting and rotating the disk D pulled out from the magazine M, and is rotationally driven by a motor provided on the lower surface of the chassis 103. Furthermore, an optical pickup is provided in the notch 103a of the chassis 103 shown in FIG. 1 (not shown), and this optical pickup moves along the recording surface of the disc D loaded on the turntable 106. , thus the performance is performed.

FIG. 9 (B) and FIG. 11 show the playback unit F elastically supported by the base 100 as described above from the side. FIG. 9 fAl shows the playing state in which the disc D is clamped. 9(B) and FIG. 11 show a standby state (unclamped state) in which the disk D is not clamped.

As shown in detail in FIG. 9fB), the regeneration unit F
A support protrusion 10 is provided on the front side surface of the chassis 103 in the figure.
3b is integrally provided upward, and the damper 102
The support shaft 104b inserted into the support protrusion 103b
is fixed. As shown in FIG.
A U-shaped drive link 108 is provided above 3, and both sides thereof are bent at right angles, and one bent portion 108a is rotatable relative to the support shaft 104b. is supported by Similarly, the other bent portion 108b is connected to the shaft 1 inserted into the other damper 102d.
It is rotatably supported by 04d. This shaft 104d is fixed to a support protrusion 103c on the opposite side surface of the chassis 103, which is indicated by a chain line in FIG. 9FA) [B).

Clamp arms 110 are provided above the chassis 103 to face each other. A bin 111 provided on one side of the clamp arm 110 (the side on the front side of FIG.
It is rotatably supported by 8a. Also, Figure 9fA)
In FB+, a protrusion 110a is provided on the side of the clamp arm 110 on the back side of the page.
A link 1 is provided between the bin 112 provided on the chassis 103 and the bin 113 provided on the support protrusion 103c of the chassis
14 are connected. Drive link 1 by the mechanism described below.
08 rotates around the support shafts 104b and 104d, the support shaft 104b, the bins 111 and 112
and 113 are in a parallel link relationship, so that the clamp arm 110 moves up and down with respect to the chassis 103 of the playback unit F in a substantially horizontal position. Clamp arm 11
A clamper 115 is rotatably supported on the lower surface of the tip of the 0. A magnet is installed inside the clamper 115, and when the clamp arm 110 descends, the clamper 115 is magnetically attracted to the metal turntable 106. As a result, the disk D is held by the turntable 106 and the clamper 115 as shown in FIG. 9fA). Further, when the clamp arm 110 is raised, the clamper 115 side is raised slightly obliquely as shown in FIG.

Further, as shown in FIG. 9(A) and FIG. 11, a guide wire 116 is provided between the chassis 103 and the clamp arm 110. As shown in FIG. 1, the lower end of the guide wire 116 is connected to the small hole 1 formed in the chassis
03d, and the upper end is the clamp arm 110.
It is fixed to the top surface of the board with screws 117. The guide wire 116 is rotatable about the insertion part into the small hole 103d, and when the clamp arm 110 is raised as shown in FIG.
When the clamp arm 110 is lowered, the guide wire 116 is tensioned diagonally on the chassis 10.
It is stored in a position along the surface of 3. As shown in FIG. 11, a turntable 106 on which the disc D is clamped
There is a difference in height between the rollers 31 and 41 that eject and insert the disk D from the magazine M. By providing the above-mentioned guide wire 116, when the clamp arm 110 rises to release the clamp on the disk D, the end of the disk D at the back of the chassis is lifted by the guide wire 116, and the disk D is brought into an unclamped state. This makes it easier to return the disc D to the inside of the magazine M.

Next, the structure of the Z1 power transmission section provided in the lower unit E will be explained.

As shown in FIGS. 1 and 8, the base 100 of the lower unit E is provided with a motor M. A ohm 121 is provided on the rotating shaft of this motor M. A worm wheel 122 that meshes with the worm 121 is supported on the base 100. The power of this gear 123 integrated with the ohm wheel 122 is transferred to the gear 124.
．． 125, and further transmitted from gears 1, 26 and 127 to transmission drive gear 128a. This transmission drive gear 128a is fixed to one end of a shaft 129 rotatably provided across the base 100. As shown in the upper part of FIG. 8, another transmission drive gear 128b is fixed to the other end of this shaft 129.

As shown in FIG. 1, the upper unit C is the lower unit E.
They are stacked on top of each other and fixed to each other. At this time, the feed gear 24 provided on the side plate 21a of the cover of the upper unit 21 meshes with the transmission drive gear 128a, and the feed gear 24 provided on the other side plate 21c of the cover 21 meshes with the transmission drive gear 128a. The gear meshes with the transmission drive gear 128b, i.e. the upper unit 21
The movable table A, which operates to protrude and retract from the lower unit E, is driven by the power of a motor M3 provided in the lower unit E.

Also, a gear 131 is disposed coaxially with the gear 126.
is provided and is driven by the gear 127.

This gear 131 is integrally provided with a small gear 132, which meshes with a rack 133 provided at the bottom of the base 103. In FIG. 8, the rack 133 is moved by the small gear 132 driven by the power of the motor M.
(m) direction. Regarding the reduction ratios of the above gears, the transmission drive gear 128a drives the feed gear 24 shown in FIG.
The rack 133 is driven at approximately ⅓ of the speed at which the rack 133 is driven.

As shown in FIG. 8, a drive lever 135 is provided on the inner surface of the sub-base IO1, and this moves together with the rack 133 in the (k)-(m) direction.

The drive L collar 135 has a drive regulation bin 136.
is installed protrudingly. In FIG. 9 (Al (Bl), this drive regulation bin 136 is shown in cross section.

Guide grooves 103e and 103f are formed on the side surface of the chassis 103 of the reproduction unit F. Further, a clamp drive lever 141 is provided on the outside of this side surface. This clamp drive lever 141 has a bent portion 141
a is inserted into the guide groove 103e, and the bottle 142 fixed inside is inserted into the guide groove 103f, and is slidable in the direction of (kl-fi1) with respect to the chassis 103. A spring 143 is applied between the inner surface of the chassis 103 and the clamp drive lever 141 (in the k1 direction).

Further, a hole 141b is formed in the clamp drive lever 141, and the left edge of the hole 141b in the drawing serves as an engaging portion 141c. Further, a drive groove 14 is provided at the right end of the clamp drive lever 141 in the drawing.
1d is formed and the bending portion 10 of said drive link 3.08
A bin 144 provided at the lower part of 8a is connected to the drive groove 141.
It is inserted in d.

FIG. 9 (In the Al state, the drive regulating bin 136 extending from the drive lever 135 is connected to the clamp drive lever 141.
It is located in the hole 141b of the chassis 103 as well as in the relief hole 103g continuous with the guide groove 103f on the side surface of the chassis 103. At this time, the chassis 103 of the reproduction unit F is not restrained in any way by the base 100 of the lower unit E, and is elastically floating due to the dampers 102a to 102d and the coil springs 105a and 105c. Also, at this time, the clamp arm 110 descends and the clamper 115
is pressing the disk D against the Koon table 106,
The pressing force at this time is to move the clamp drive lever 141 to fk.
) direction is given by the elastic force of the spring 143. The rack 133 is driven in the (it1 direction) by the motor M through each gear, and a drive regulating bin 136 extends from a drive lever 135 that moves together with the rack 133.
moves in the fm) direction, the driving side bin 136 moves into the guide groove 10 of the chassis 103, as shown in FIG. 9 fB).
3f, the driving follow-on pin 136 engages with the engaging portion 141c of the hole 141b of the clamp driving lever 141, and drives the clamp driving lever 141 in the (m1 direction. As a result, the right end of the clamp driving lever 141 first The drive groove 141d rotates the drive link 108 clockwise and raises the clamp arm 110.The drive regulation bin 136 also enters the guide groove 103f of the chassis 103, and the drive regulation bin 136 moves into the clamp drive lever 1.
By pressing the engagement NI 141c of 41 in the (m) direction, the reproduction unit F, which had been elastically floated and supported by the dampers 102a to 102d and the coil springs 105a, 105b and 105c, is moved to the base 100 of the lower unit. It becomes fixed state against.

Here, as shown in FIG.
It is provided at the bottom of 0.

As shown in FIGS. 8 and 10, the lower unit E
There is an upwardly bent portion 10 on the left edge of the base 100 in the figure.
0f and a support table 100g which is bent into a horizontal state and is continuous with the support table 100g. and base 100
A regulating member 15 is placed on the bottom surface of the support table 100g.
1 is being thrown snow. As shown in FIG. 8, a guide piece 100h is bent at the edge of the support table 100g, and a guide piece 1518 formed on the regulating member 151 is engaged with this guide piece 100h. The bent guide piece 1001 engages with a groove 151b formed on the regulating member 151, so that the regulating member 151 can freely slide in the left-right direction in FIG. Further, a support portion 100j is formed on the upper edge of the support table 100g bent from the base 100 in FIG. freely supported. In addition, the bent piece 153a of the regulating lever 153 and the support table 100g
A spring 154 is applied between the bending piece 100 on the side thereof, and the regulating lever 153 is biased clockwise. Furthermore, since the locking portion 153b formed on the regulating bar 153 is locked to the regulating member 151,
The regulating member 151 is urged to the left in the figure by the urging force of the spring 154. Further, at the bottom of the base 100, a lever 15 is rotatably supported by a bin 155.
6 is provided, and its tip is connected to the right end of the regulating member 151 via a connecting pin 157. Furthermore, a pressure bottle 158 integrated with the rack 133 is in contact with the base of the lever 156 from the right side. When the rack 133 is moving in the k1 direction by the power of the motor M, as shown in FIGS. The regulating lever 153 is rotated clockwise by the biasing force, and the regulating member 151 is also pulled to the left in the figure.When the rack 133 is driven in the fml direction by the power of the motor M3, the rack 133 is rotated clockwise. The lever 156 is driven clockwise by the pressing pin 158 that moves in the fm1 direction together with the lever 133, and the regulating member 151 is bent to the right in the figure via the connecting pin 157.
Further, the regulating member 151 is connected to the locking portion 1 of the regulating lever 153.
53b, the regulation lever 153 rotates counterclockwise.

Here, as shown in detail in FIG. 10, the regulating member 15
1 has two regulating pieces 151c and 15 having tapered surfaces.
1d, and V-grooves 103h and 1031 are provided on the chassis 103 of the reproducing unit F facing this. Further, the regulating lever 153 is formed with a regulating arm 153C, and the chassis 103 is formed with a bent portion 103j that faces the regulating arm 153C. As mentioned above, when the rack 133 is driven in the m1 direction by the motor M,
The regulating member 151 is driven rightward in the drawing, and at this time, the regulating pieces 151c and 151d of the regulating member 151 press the V-grooves 103h and 1031 of the chassis 103 with forces indicated by F and F. This pressing force not only fixes the chassis 103, which had been floating elastically, in the unclamped state shown in FIG. 9 FB+, but also
in the direction of Fl and F2, and move the chassis 103 in that direction.
I am trying to move and fix it. This amount of movement is between the dampers 102a to 102d and the support shafts 104a to 1.
04 d is the range of allowable movement. As shown in FIG. 11, the disc disc is taken out from the magazine M in this unclamped state. It is designed to increase the facing distance from other objects. Note that when the regulating member 151 presses the chassis 103 with forces F and F2, the regulating arm 153c of the regulating lever 153 presses against the bent portion 10 of the chassis 103.
3j is pressed with the force of F4. In the unclamped state, as shown in FIG. 9 fBl, the drive regulation bin 1
36 moves the chassis 103 via the drive lever 141 to F,
Since it is pressed with a force of F+ as shown in Figure 10,
This is to balance the pressure force F4 of the regulating arm 153c so that unnecessary moment does not act on the chassis 103 due to the force F2 and the opposing force Fs.

Furthermore, as shown in FIGS. 8 and 11, a pair of brackets 151e are bent on both sides of the disk guiding side end of the regulating member 151, and a guide plate 161 is attached to each bracket 151e. It is rotatably supported by 162. Further, both guide plates 161 are connected by a shaft 164. In addition, a guide plate is formed by a spring 165 wound around the shaft 164], and 61 is a first guide plate.
In Figure 1, it is biased counterclockwise. A bent guide surface 161a is formed on the right side of each guide plate 161 in the drawing, and each guide plate 1.61 is provided with a roller 163 extending inward. The guide surface 161a and the roller 163 are used to prevent a gap from being formed under the bottom of the magazine M where the disk would intervene when the disk is ejected from the magazine M, as shown in FIG. It is something. Further, since the roller 163 is provided, when the magazine M moves to the right in FIG. 11 together with the movable table A, the roller 163
It rolls on the bottom surface of the magazine M and can follow steps formed at the bottom of the magazine M. Note that as shown in FIG. 11, the lower driven roller 131 is connected to the regulating member 151.
It is located above.

As described above, the power of the motor M3 provided in the lower unit E first drives the transmission drive gears 128a and 128b, then the feed gear 24 of the upper unit C is driven, and the movable table A is moved by the rack llk. The rack 133 is driven by the power of the motor M, and the clamp arm 100 moves up and down to clamp and unclamp the disk, and when unclamping, the drive regulation bin 136, regulation member 151, and regulation lever 1 are moved.
53, the chassis 103 of the reproduction unit F is fixed. As mentioned above, the gear group provided in the lower unit E allows the movement of the moving table A to be controlled by the rack 133.
is driven at a reduction ratio of 1/3. Therefore, the relationship between these movements is that when the movable table A is drawn into the upper unit C, the clamp arm 110 first descends, and as shown in FIG. 4(B), the clamp arm 1 that has descended
When the movable table A and the magazine M move above the clamp arm 110 and the movable table protrudes as shown in FIG. 110 will start to rise.

Next, the operation of the CD drive unit having the above structure will be explained.

Loading and ejecting of the magazine and eject magazine is carried out by moving the moving table A into the cover 21 of the upper unit C and lowering the clamp arm 11, as shown in FIG. 4(B).
This is done while the device is stored on the 0.

The operation of pulling the moving table A into the upper unit C is as follows:
This is done by the motor M3 of the lower unit E. When the motor M drives the transmission drive gears 128a and 128b counterclockwise through each gear, the feed gear 24 provided on the side plate 21a of the cover 21 of the upper unit C is driven clockwise, and the moving table A The rack 11k of the side plate 11b (see FIG. 4 (Al tB)) is driven, and the movable table A is drawn into the upper unit C.

At this time, the motor M drives the rack 133 shown in FIG. , chassis 1 of regeneration unit F
It is located in the hole 141b of the clamp drive lever 141 provided on the side surface of the chassis 103 and the escape hole 103g of the chassis 103.

The drive link 108 is thus rotated counterclockwise and the clamp arm 110 is lowered toward the turntable 106. In addition, since the rack 133 moves in the (k1 direction), the pressing bin 158 shown in FIG. 8 does not press the lever 156.
Therefore, the regulating member 151 is moved to the left by the biasing force of the spring 154, and the regulating lever 153 is also rotated clockwise. Therefore, the pressing force for regulation indicated by F, F, F, and F4 shown in FIG. 10 did not act, and the chassis 103 of the regeneration unit F was elastically floated by the dampers 102a to 102d and the coil springs 1058 to 105c. It is in a state. The movable table A is housed on the reproduction unit F in such a floating state and the clamp arm 110 is lowered.

At this time, as shown in FIG. 4(B), the bent portion 26a of the lock plate 26 provided on the side plate 21a of the cover 21
is a state in which the lock plate 26 is rotated clockwise while riding on the upper edge of the side plate 11b of the movable table A. Therefore, the roller holder 32 is driven clockwise by the connecting link 36, and the lower driven roller 31 escapes to the lower side of the magazine M.

Magazine M is inserted in this state. The magazine M is inserted between the bottom plate 11a and the guide plate 11c shown in FIG. 1 by pushing the door 19 of the movable table A. When the magazine M is inserted, the lock bin 12 guided by the guide slope 1e and Ig provided on the bottom surface of the case 1 of the magazine M is locked in the lock grooves 1f and lh (see FIG. 3 for both). , magazine M is locked within moving table A. Thereafter, the moving table A and the magazine M operate as one until the magazine is ejected.

In the magazine locking mechanism described above, as shown in FIGS. 1 and 3, a lock bin 12 protrudes from the bottom surface 11a of the movable table A.
can move in the direction (e) and the opposite direction, but cannot move in the left-right direction in FIG. 3, that is, in the insertion direction of the magazine M. Also, when inserting magazine M,
The lock bin 12 is moved by the guide slopes 1e and 1g (e
) and move in the opposite direction.

Therefore, if the magazine M is accidentally inserted from the opposite side, that is, with the rear end surface 1d of the magazine M facing inward, the rear end surface 1d of the magazine M will be inserted into the lock bin because the guide slope is not formed in this direction. 12 and no further insertion is possible. This makes it possible to prevent incorrect insertion of the magazine M.

The ejection operation for ejecting the magazine M is performed when the movable table A and the magazine M are drawn above the reproduction unit F, as shown in FIG. 4FB1.

When the eject command is issued, the selection mechanism B shown in FIG.
The motor M drives the ohm wheel 51, drives the drive screw 49 integrated with it, lowers the lifting block 45, and when the detection arm 45a turns on the detection switch SW, the motor M+ is activated. Stop. When the elevating block 45 reaches this position, the ejection/insertion roller 41, which moves up and down together with the elevating block 45 as shown in FIG. 11, assumes the original position indicated by (0). In this original position, the drive arm 86b of the switching body 86 moves up and down together with the lifting block 45.
is opposed to the inside of a protrusion 13a (shown in FIG. 3) of the lock lever 13 provided on the lower side of the bottom plate 11a of the movable table A.

In this state, the motor M2 provided in the selection mechanism B is driven, and the ohm wheel 62 and gears 63, 64 .
A transmission gear 72 is driven via a transmission gear 71, and a switching gear 74 is driven by a gear 73 integrated therewith. At this time, the switching gear 74 can be rotated <360 degrees in either direction.

Due to the 360 degree rotation of the cam 75 integrated with the switching gear 74, the drive lever 81 shown in FIG.
i), and when the switching gear 74 rotates 360 degrees, it returns to the fh direction as shown in FIG. 6 (Al). By one reciprocating movement of the drive lever 81, the switching body 86 sandwiched between the holder 81d at the left end of the drive lever 81 and the bending piece 84a is driven clockwise as viewed from above in FIG. Therefore, the protrusion 13a of the lock lever 13 shown in FIG. 3 is driven by the driving arm 86b of the switching body 86 in the direction opposite to tel, and the lock bin 12 is ejected from the lock grooves 1f and 1h of the magazine M. Therefore, the eject bin 15 pushes the pressing step 11 of the magazine M by the force of the spring 18, and the magazine M is ejected from the moving table A.

As mentioned above, the loading and ejecting operations of the old 1-gloss magazine M are carried out with the magazine M shown in FIG. 4
This is done in the state shown in Figure (Bl), and at this time the disk D
is held between the turntable 106 and the clamper 115, and the magazine M is stored thereon. The operation of replacing the disc from the performance state shown in FIG. 4 fBl will be explained below.

In the disk exchange operation, the motor M3 of the lower unit E is first driven in the state shown in FIG. 4 FB+. This driving force is transmitted to drive gears 128a and 1 by a gear group shown in FIG.
28b, the feed gear 24 provided on the side plate 21a of the upper unit C and the feed gear provided on the other side plate 21c are driven counterclockwise, and the rack llk provided on the side plate 11b of the movable table A is driven counterclockwise. Power is applied to the movable table A, and the movable table A protrudes from the upper unit C.

FIG. 7 shows the protruding state during the disk exchange operation. At this time, the magazine M is held on the movable table A and the door 19 is rotated upward and protrudes, so the user does not see the ejected magazine M.
It can be recognized that a disk replacement operation is in progress. When the movable table A protrudes, the bent portion 26a of the lock plate 26 is bent against the side plate 11 of the movable table A, as shown in FIG. 4fA+.
It comes off the upper edge of b and rotates counterclockwise due to the biasing force of the spring 28. Therefore, the roller holder 32 is driven counterclockwise via the connecting link 36, and the lower driven roller 3
1 is pressed against the discharge/insertion roller 41 from below. The pressing force at this time is due to the elastic force of the spring 28.

The transmission drive gear 12 is driven by the motor Ms of the lower unit E.
8a and 128b are driven, and when the movable table A protrudes, the driving force of the same motor M3 is transmitted to the rack 133 through the gear group shown in FIG. Therefore, the drive regulating bin 136 provided on the drive lever 135 that is driven in the same direction as the rack 133 causes the clamp drive lever 141 provided on the chassis 103 of the playback unit F to move (m1
driven in the direction. Therefore, as shown in FIG. 9 fBl, the drive link 108 is driven clockwise via the pin 144 by the drive groove 1416 of the clamp drive lever 141, and the clamp arm 110 rises in a substantially horizontal position. Therefore, the clamp on the disk D on the tongue table 106 is released. When the clamp is released, the end of the guide wire 116 is lifted and stretched diagonally as shown in FIG. This lifting of the clamp arm 110 and the protruding operation of the moving table A occur at the timing when the lifting of the clamp arm 110 is completed just when the magazine M and the like are removed from the top of the disk D. Further, when the inner end of the disk D is lifted by the guide wire 116 due to the rise of the clamp arm 110, the lower driven roller 31 is lifted by the rotation of the roller boulder 32 as described above, and the disk D
The left end of the figure is the ejection/insertion roller 41 and the lower driven roller 31.
It becomes a state where it is sandwiched between.

Also, as mentioned above, the rack 133 is 1 m in Fig. 8)
the drive control bin 136 of the drive lever 135
By moving in the (m1 direction), the drive regulating bin 136 presses the chassis 103 in the F direction via the clamp drive lever 141, as shown in FIG.

At the same time, the pressing bottle 158 moving together with the rack 133 drives the lever 156 clockwise, thereby causing the regulating member 1
51 is pulled to the right, and the regulation lever 153 is driven counterclockwise. Therefore, as shown in FIG. 10, the regulating pieces 151c and 151d of the regulating member 151 are
3. Fit into grooves 103h and 1031 of chassis 1o3.
is pushed in the Fl and F2 directions, and the chassis 103 is pushed in the F3 direction by the regulating arm 153c of the regulating lever 153. Therefore, the chassis 103 is not in an elastic floating state but in a fixed state. Further, as described above, the chassis 103 is moved to the right in the figure by the forces Fl and F2 and is in a fixed state, and the playback unit F is slightly moved in a direction away from the opening 3 of the magazine M.

In this way, the moving table A protrudes to the state shown in FIG. 7, the clamp arm 110 rises, and the reproducing unit F
The disk is replaced with the chassis 103 fixed. First, motor M1 of selection mechanism B shown in FIG.
The driving screw 49 is driven by the lifting block 4.
5 is raised and lowered to raise and lower the ejection/insertion roller 41 via the roller connection lever 47, and as shown in FIG.
Move it to the selected position indicated by . As mentioned above, this is controlled by detecting the rotation speed of the detection rotating body 55 shown in FIG. When the disc storage space St is in the second stage of the magazine M, the ejection/insertion roller 41 is in the second stage selection position shown in (2), and the disc D whose end is held between this roller 41 and the lower driven roller 31 faces the front of the space S. Furthermore, as the lifting block 45 moves up and down, the switching body 86 shown in FIG. 5d6
Opposed to the inside of either d. When the disk is returned to the second stage space S2 as described above, the drive arm 86b faces the inside of the pressing member 5d of the second stage movable plate 5.

When the control of the selection positions of the ejection/insertion roller 41 and the switching body 86 is completed, the motor M2 of the selection mechanism B shown in FIG.
is driven, the ejection/insertion roller 41 is driven clockwise via the gear group, and at the same time the switching gear 7 shown in FIG. 6 TA+ is driven.
4 is driven counterclockwise. The rotation amount of the motor M2 at this time is such that the switching gear 74 rotates 360 degrees, the drive lever 81 is moved in the fi) direction by the cam 75, and
This is the period of one reciprocating movement back in the direction. The holder 81d provided at the left end of the drive lever 81 due to this reciprocating movement
and the folded piece 84a! The arm 86a of the switching body 86 is pushed, and the switching body 86 is driven clockwise in FIG. That is, the drive lever 81 is initially driven in the i1 direction by the cam 75 shown in FIG. Therefore, the switching body 86 rotates clockwise, remains as it is for a while, and finally returns to the counterclockwise direction.While the switching body 86 rotates clockwise, the driving arm 86b is rotated. Push the pressing member 5d provided on the second stage movable plate 5 of the magazine M shown in FIG.
is rotated in the β direction. At this time, as described above, the disk D is sandwiched between the ejection/insertion roller 41 rotating clockwise and the lower driven roller 31 that is in pressure contact with the ejection/insertion roller 41.
is returned to the second stage disk storage space S2 without being disturbed by the pressing member 5d of the magazine M. After the 360 degree rotation of the switching gear 74 is completed, the switching body 8 shown in FIG.
6 returns counterclockwise, its driving arm 86b separates from the suppressing member 5d of the magazine M, and the movable plate 5 in the magazine M returns to the α direction in FIG. 2 by the spring 5b. Therefore, the disk D is pressed by the pressing member 5d (indicated by dl) and is held so as not to protrude into the magazine M.

The operation of selecting a disk, pulling it out from the magazine M, and clamping it to the playback unit F is the reverse of the disk return operation described above.

For example, the top disk storage space S in the magazine M
, when pulling out the disk in the selection mechanism B shown in FIG. 5, the lifting block 45 is raised by the motor M of the selection mechanism B shown in FIG.
Move to. At this time, the drive arm 86b of the switching body 86 that rises together with the lifting block 45 is connected to the magazine M shown in FIG.
It faces the inside of the pressing member 6d provided on the uppermost movable plate 6.

In this state, the motor M2 drives the discharge/insertion roller 41 counterclockwise, and also drives the switching gear 74 clockwise. The amount of rotation of the motor M2 at this time also corresponds to a period in which the switching gear 74 rotates 360 degrees clockwise. Switching gear 74
The drive lever 81 is initially pulled in the fi1 direction by the cam 75, which rotates clockwise at the same time, and before completing 360 rotations, the drive lever 81 is pulled in the fi1 direction.
) direction. As the drive lever 81 operates, the switching body 86 shown in FIG. 3 is driven clockwise and maintains this state for a while. When the switching body 86 is driven clockwise, its driving arm 86b presses the pressing member 6d of the movable plate 6 in the magazine M shown in FIG. 2 in the β direction, and the movable plate 6 is driven in the β direction.

Therefore, the discharge bin 6c provided on the movable plate 6 pushes the portion indicated by fc) of the disk D stored in the uppermost disk storage space S, and the tip of the disk D protrudes from the opening 3. At this time, since the ejection/insertion roller 41 located in front of the opening 3 is driven counterclockwise, the leading edge of the disk D is held by this roller 41 and the lower driven roller 31, and the disk D is moved into the magazine M. It is pulled out from inside the space S8. Then, it is sent to the right in FIG.

The rotation period of the motor M2 is determined by the switching gear 74 and the cam 75.
This is the period during which the drive lever 81 rotates 360 degrees and makes one reciprocation. This rotation period is controlled by, for example, providing a detection switch opposite to the left end of the drive lever 81 and using the time when the drive lever 81 once leaves the switch and then contacts the switch as a reference. During the 360 degree rotation, the amount of rotation of the ejection/insertion roller 41 is equal to the amount of rotation of the disc D.
The period is set to be sufficient for the center to reach the top of the turntable 106. In reality, the setting is such that 360 rotations of the switching gear 74 are not yet completed when the ejecting/inserting roller 41 completes pulling out the disk.
This can be absorbed by the slippage of the clutch between 6 and 6.

When the removal of the disk is completed, the motor M1 shown in FIG. 5 is driven again, and the lifting block 45 is lowered to the position where the switch SW is turned on, that is, the original position (0) shown in FIG. 11. As a result, the roller 41
The end portion of the disk D held between and 31 is lowered, and the disk end portion is guided to a position facing the roller 163 or the guide surface 161a shown in FIG. 11. Thereby, the subsequent movement of the disk to the left in the figure can be prevented by the roller 163 and the guide surface 161a.

Note that during the above disk exchange operation, the ejection/insertion roller 41 does not descend to the original position + (1), but is located between the 1st stage selection position (ll) and the 3rd stage selection position (3). In this state, as shown in FIG. 4(A), the bent portion 26a at the upper end of the lock plate 26 connected to the roller holder 32 by the connecting link 3 is bent at the inner end of the movable table A (indicated by gl). Therefore, during the disk exchange operation, the moving table A is prevented from moving toward the rear by the bending portion 26a, and in the state shown in FIG. Even if the moving table A is pushed, the moving table A does not enter the upper unit C. However, when the disk is completely pulled out and the ejection/insertion roller 41 descends to the original position (0) as described above, this The lock plate 26 is rotated clockwise by the roller holder 32, which rotates together with the lower driven roller 31 pushed down by the roller holder 32.Then, the bent portion 26a of the lock plate 26 is moved to the position shown by fg) at the inner end of the side plate 11b of the movable table A. The movable table A is now opposed to the upper slope 11f2, and the restriction on the movable table A is released.The movable table A then moves to the right, but at this time, the bent portion 26 of the lock plate 26
a is guided by the inclined surface 11J2 at the inner end of the side plate 11b and slides on the bead of the side plate 11b, and as shown in FIG. 4(B), the roller boulder 32 rotates clockwise and moves downward. The driven roller 31 separates from the disk and escapes downward. Note that when the movable table A is drawn into the upper unit C, if the ejection/insertion roller 41 is at the original position (01), the roller 41 will hit the clamp arm 110 etc., so before the roller 41 reaches the top of the clamp arm 110, The elevator block 45 is raised again by the motor M1, and the discharge/insertion roller 41 is moved to the first stage selection position (1) or a position above it.

After the above-mentioned withdrawal of the disk D is completed, the motor M of the lower unit E is started, the transmission drive gears 128a and 128b are driven counterclockwise through the gear group, and the feed gear 24 is driven clockwise. Then, the moving table A is pulled into the upper unit C. At this time, the rack 133 is driven by the motor M in the (lTl) direction in FIG.
It is driven in the m1 direction. Therefore, the clamp arm 110 is lowered by the drive groove 141d of the drive lever 141. Then, the disk D is sandwiched between the clamper 115 and the turntable 106, and the clamper 115 presses the disk D against the turntable 106 by the elastic force of the spring 143 that biases the drive lever 103. Also rack 13
3 im) direction, the regulating member 151 returns to the left in FIG. 8, the regulating lever 153 rotates clockwise, and the drive regulating bin 136 moves as shown in FIG. 9(A). It is located within the hole 141b and the escape hole 103g. Therefore, the restraining force F on the chassis 103 shown in FIG.
, F2F, F are released, and the regeneration unit F is operated by each damper 1028 to 102d and the coil spring 105a.
~ 105c brings it into an elastically floating state.

Immediately after the clamp arm 110 is lowered in the above clamping operation, the movable table A and the magazine M are drawn onto the clamp arm 110 as shown in FIG. 4fB). In this state, the disk D is driven to rotate, and reproduction is performed by optical pickup.

In addition, as shown in FIG. 11, in the illustrated embodiment, the ejection/insertion roller 41 moves up and down along an arcuate trajectory centering on the shaft 43 that supports the swing lever 42, and the lower driven roller 31
moves up and down in an arc centered around the bin 33 that supports the roller holder 32. Therefore, the tangent at the point of contact between the rollers 41 and 31, that is, the direction of the feeding force, changes depending on the vertical position of each roller. In FIG. 11, the discharge insertion roller 41
When is in the 1st stage selection position (1), the feeding direction of the contact point between the rollers 41 and 31 is (0), the feeding direction in the 2nd stage selection position (2) is (pi), and the 3rd stage selection position (3) The feeding direction is (ql), and the feeding force when returning the disk D to the magazine M is (0) and (pi, slightly downward, [q
l is approximately horizontal. In the embodiment shown in FIG. 11, when the clamp arm 110 rises, the guide wire 11B lifts the right end of the disk D in the figure to a considerably high position, so that in the third stage selection position (3), the feeding direction (q ) is made almost horizontal, so that the disk D is returned to the space S8 while being lifted.

At the second stage selection position (2) and the first stage selection position (11), the feeding direction is downward as shown by fpl and (ql), and the disk D lifted by the guide wire 116
is directed toward spaces S, and S within magazine M, thereby ensuring that disk D can be returned to each space within the magazine.

Note that the direction of the above-mentioned feeding force is determined depending on the height of the reference position of the disk D. In FIG. 11, the feeding force is determined based on the third stage selection position (3). FIG. 12 shows another embodiment regarding this. 12th
In the figure, the disk feeding direction (p) by the rollers 41 and 31 is almost horizontal at the second stage selection position (2) shown in (Bl). In the 12th stage, the feeding force of the disk in the magazine direction is slightly downward by the rollers 41 and 31.
At the third stage selection position (3) shown in FIG. FC1, the disk feeding force in the magazine direction is slightly upward.

In addition, although the above description of the operation shows the case where the disk is replaced, the case where the disk is not clamped in the state shown in FIG. Similarly, when the moving table A and the magazine M are protruded from the upper unit C, the only operation at this time is that there is no operation to return the disk to the magazine M in the disk exchange operation.
The operations of pulling out the disk from the magazine and clamping it are the same.

In the illustrated embodiment, three disks are stored in the magazine M, but the number of disks may be four, more, or two.

Further, in the above embodiment, a case is shown in which a compact disc is played back assuming an in-vehicle device, but the present invention is not limited thereto, and can also be applied to a playback device for home-use compact discs and the like. Further, in the above embodiment, it is assumed that the disk playback unit F only performs the playback function, but this disk playback unit may also be a unit for an optical memory device that can perform recording and playback, such as a magneto-optical disk. good.

Furthermore, although the above embodiment shows a magazine that stores a plurality of disks, a magazine (case) that stores only one disk is used, and this magazine is stored in the upper unit C and Alternatively, the disc may be pulled out and played.

Further, in the above embodiment, as shown in the first section, only the upper side portion of the magazine M on the movable table A is held by the guide plate 11c. The upper front surface may be covered.

〔effect〕

As described above, according to the present invention, it is possible to load a disc while it is stored in a magazine, and the disc is automatically pulled out from this magazine inside the device, so that it is no longer necessary to use the disc alone as in the past. This eliminates the need for discs and protects them from deformation or damage, for example when handling them in a car. Moreover, if a plurality of discs are stored in a magazine, a changer function can be provided to select and operate the magazine. Furthermore, in the operation of ejecting a disk from a magazine, the magazine is held by the movable table and protrudes together with the movable table, and magazine ejection is performed with the movable table being retracted into the storage area, and at this time the magazine is held as a single unit. It protrudes outward from the device. Therefore, the user can reliably recognize whether the magazine is being ejected or whether the magazine has been ejected, depending on whether the magazine is ejected by itself or is ejected while being held on a moving table. This prevents erroneous operations such as accidentally pulling out a magazine during operation.

In addition, since a lock protrusion and an eject protrusion are provided on the movable table, when the movable table is moving to the storage area, by driving the lock protrusion from the outside of the movable table with a switching body, the ejecting protrusion can be moved into the storage area. The magazine can be easily ejected from the movable table located at.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view showing an exploded state of the upper and lower units of the disc play unit, FIG. 2 is an exploded perspective view of the disc magazine, and FIG. Plan views showing the structure of the table and selection mechanism, Figure 4 (Al) and Figure 4 (Bl
5 is a side view showing the structure of the upper unit according to its operation, FIG. 5 is a sectional view taken along the line V-■ in FIG.
Figure (A) is a front view showing the switching gear shown in Figure 5 and the drive lever driven by the switching gear, Figure 6 (B) is an explanatory view showing the operating state of the drive lever, and Figure 7 is a disk exchange operation. FIG. 8 is a plan view of the lower unit, and FIG. 9 (A
1 and 9 (Bl is a side view showing each operation of the playback unit installed in the lower unit, Figure 10 is a partial perspective view showing the positioning and fixing mechanism of the playback unit, and Figure 11 is a magazine during disk exchange operation. FIG. 12 (C) is an explanatory view showing another embodiment in which the ejection/insertion roller and the lower driven roller are in pressure contact with each other. A...Moving table, B...Selection mechanism, C...Upper unit, D...Disk, E...Lower unit, F...Reproduction unit, M...Magazine, lla.
・・Bottom surface of moving chiffle, llb・side plate, llc・
...Guide plate, 11k...Rack, 12...Lock bin, 13...Lock lever 114...Lock elastic member, 15...Eject bin, 16...Eject lever, 18... Elastic member for ejection, 19.
... Door, 24 ... Feed gear, 31 ... Lower driven roller, 41 ... Ejection and insertion roller, M2 ... Motor,
74... Switching gear, 75... Cam, 81... Drive lever, 86... Switching body, 86b... Drive arm, 10
3... Chassis of playback unit, 106... Turntable, 110... Clamp arm, 115...
Clampa.

Claims (1)

[Claims] 1. A disc playback unit equipped with a rotation mechanism that rotates the disc and a pickup facing the disc, and a storage area located within the device that overlaps with the disc playback unit and from this area to the outside of the device. a movable table that reciprocates between a protruding position and a magazine and holds the magazine; a drive mechanism that protrudes the movable table from the storage area when pulling out a disk in the magazine; an ejecting/loading mechanism that pulls out a disc from within the magazine held by the magazine and loads it into the disc reproducing unit while the disc is being moved to the disc reproducing unit;
A magazine characterized in that it is provided with a lock/eject mechanism that locks the magazine within the movable table, unlocks the magazine when the movable table is in the storage area, and ejects the magazine from the movable table. The retractable disc player 2 and the lock/eject mechanism include a locking protrusion provided on the movable table and fitting into the bottom of the magazine, and a locking elastic member urging the locking protrusion in the fitting direction.
An eject protrusion that is also provided on the movable table and comes into contact with the locked magazine; an ejecting elastic member that presses the eject protrusion in the magazine ejection direction; and an elastic member that locks the locking protrusion when the movable table is in the storage area. A magazine storage type disc player according to claim 1, comprising a switching member that is driven in a direction opposite to the switching member and a drive section that operates the switching member.