JPH04123353A - Disk player with disk selecting function - Google Patents

Abstract

PURPOSE:To easily operate plural take-out knobs and to facilitate disk changeover work in a magazine, etc., by exposing the uppermost and lowermost ones out of the plural take-out knobs for ejecting their individual disks in order to be operatable on the top and bottom and exposing the intermediate ones to be operatable on the side. CONSTITUTION:The device is provided with plural ejecting mechanisms corresponding to their respective disks D in the magazine M. Then, the take-out knobs 4e, 5d and 6e for operating these ejecting mechanisms are positioned in a recessed part 2a formed on the side of the magazine M, where the uppermost and lowermost take-out knobs 4e and 6e are exposed to be operatable in the vertical directions of the magazine M, while the intermediate take-out knob 5e is exposed to be operatable on the side of the magazine M. By this method, the take-out of a disk in the magazine is facilitated, and the disk changeover in the magazine is simplified.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to a disc player in which a desired disc is pulled out from a magazine storing a plurality of discs and played back by a playback unit, and in particular, the present invention relates to a disc player in which a desired disc is pulled out from a magazine storing a plurality of discs and played back by a playback unit, and in particular, the present invention relates to a disc player in which a desired disc is pulled out from a magazine storing a plurality of discs and played back by a playback unit, and in particular, the present invention relates to a disc player in which a desired disc is pulled out from a magazine storing a plurality of discs and played back by a playback unit, and in particular, the present invention relates to a disc player in which a desired disc is pulled out from a magazine storing a plurality of discs and played back by a playback unit, and in particular, the present invention relates to a disc player in which a desired disc is pulled out from a magazine storing a plurality of discs and played back by a playback unit. The present invention relates to a disc player having a disc selection function that allows the disc already stored to be easily taken out when replacing the internal disc. [Prior Art] A recent audio device for car or home use is called a disk changer. This involves storing a plurality of compact discs in a magazine, loading this magazine into the device, and specifying or programming the disc or song number that you want to play. In the disc changer, a desired disc in the magazine is selected according to the specified operation or program, and the selected disc is clamped by a rotating mechanism (turntable) and clamper in the playback unit, and played. The magazine loaded into this type of disc changer is
It is necessary to form a disk storage space for storing a plurality of disks, and to have a function that allows the disks stored in this space to be ejected from an opening. A magazine used in a conventional general disc changer has an interior divided by a fixed partition plate to form a space for storing a plurality of discs. Further, an ejecting member for ejecting the disk is provided at the rear of the magazine on the opposite side to the insertion direction. [Problems to be Solved by the Invention] In the above-mentioned conventional magazine, when trying to eject a disc that is already stored in order to replace the internal disc while it is not loaded in the device, the ejection member is Remove the disc by pushing it with your finger. At this time, since the ejecting members are lined up closely, it is very difficult to operate each one with your finger, and it is difficult to remove the disc from the magazine. It has a difficult structure. The present invention solves the above-mentioned conventional problems, and provides a disc player having a disc selection function that facilitates the operation of a plurality of take-out knobs provided on the magazine and facilitates work such as replacing discs in the magazine. is intended to provide. [Means for Solving the Problems] The present invention provides a playback unit that includes a rotation mechanism that rotates a disk, a clamper that installs the disk in the rotation mechanism, and a pickup that faces the disk. A disc selection system is provided with a magazine that faces the direction of the camera and stores a plurality of discs inside the magazine, and a disc feeding mechanism that is located in front of the opening of the magazine and transports the discs in the magazine toward the playback unit. The magazine is equipped with a plurality of ejection mechanisms corresponding to the respective disks, and an ejection knob that operates the ejection mechanism is located inside a recess formed on the side of the magazine. The top and bottom take-out knobs are exposed so that they can be operated from above and below the magazine, and the intermediate take-up knob is exposed so that it can be operated from the side of the magazine. It is something to do. [Function] In the above means, among the plurality of take-out knobs for ejecting each disk, the top and bottom ones are exposed so that they can be operated from above and below, and the middle ones are exposed so that they can be operated from the side. This allows the removal knob to be operated from three directions, making removal easier. Furthermore, by holding the top and bottom ejection knobs from above and below, they all operate together, including the middle ejection knob, making it easier to eject all discs at the same time. [Example] Examples 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. 6 In FIG. 1, reference numeral A is a moving table that supports the magazine M. A selection mechanism B for selecting a desired disk is mounted on the real 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 threaded hole fbl is formed in the lower unit E.
The upper unit C and the lower unit E are stacked vertically and fixed to each other by fixing the female screw hole (bl) with a fixing screw.In this assembled state, the width is 17Dmm, the height is 50mm, and the depth is 50mm. 180m+
The size is so-called 1 dean size, and it can be mounted in the same mounting space as a car radio or car stereo on the dash board of an automobile. First, the structure of the magazine M will be explained using the 21st KfA+ FB+. 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 the figure, and the other three sides are closed to form a box shape. As shown in Figure 11,
Three movable plates 4.5.6 are housed within the magazine M. The space between the bottom surface 1a of the case 1 and the movable plate 4 is the first stage disc storage space S, the space between the movable boards 4 and 5 is the second stage disc storage space S2, and the space between the movable boards 5 and 6 is the disc storage space S2. This is the third stage disk storage space S. Furthermore, the uppermost movable plate 6 and the cover 2 are in substantially close contact with each other. A disk D is stored in each of the three disk storage spaces S, , S, , S,. Figure 2 (A+ is
An exploded perspective view shows a state in which the cover 2 and the uppermost movable plate 6 are removed, and FIG. 2(B) shows a perspective view of the assembled magazine M from the opposite side. Second
As shown in Figure (A+), a shaft 7 is integrally protruded from the bottom of the illustrated case l, and the movable plates 4, 5, and 6 are each rotatably supported with respect to this shaft 7. FIG. 2fA) 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 protruding bottle 8 is provided on the bottom surface 1a of the case 1 at a position aligned with the shaft 7, and a movable plate 4
．． 5. A spring 4 is inserted between each of 6 and this pin 8.
b, 5b, and 6b are applied, and each movable plate 4.5.6 is urged in the α direction by the urging force. Also, each movable plate 4
．． At the rear of each movable plate 4.5.6, discharge bins 4c, 5c, and 6c are provided facing downward, and at the front left side of each movable plate 4.5.6, there are pressing members 4d, 5d, and 6d, and an ejection knob 4e integrated therewith. 5e and 6e are provided. This discharge bin,
The positional relationship between the pressing member and the take-out knob is shown in Figure 2 fAl.
The uppermost movable plate 6 appearing in will be explained. The discharge bin 6c that protrudes downward from the rear part of the movable plate 6 has 3
(C) of the rear end of the disk D that is located at the rear of the disk storage space Ss in the third stage and is stored in this space S.
Opposite the position shown. Also, disk D is space S,
In the state that the pressing member 6d is housed in the disk D, the pressing member 6d faces the front of the disc D (at a position indicated by dl. In FIG. 2 fA), for convenience of explanation, the pressing member 6d is facing the disc D. The chain line indicates the current state. 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 S from the opening 3 side, the pressing member 6d is once pressed by the insertion force, and the movable plate 6 is pushed into the space S.
The disk D escapes in the direction and is inserted into the space S. 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 indicated by fd+ on the disk D, and the disk D is prevented from being pulled out within the space S1. When the disk D in the space S is selected and ejected, the pressing member 6d is driven in the β direction by a selection mechanism B, which will be described later. At this time, the discharge bin 6
C presses the portion of disk D indicated by tel in the direction of opening 3. The motion of the movable plate 6 at this time is a circular motion in the β direction about the shaft 7, and this motion causes the disk D to slide on the inner wall 1b of the case 1, etc., and the tip of the disk protrudes from the opening 3. . As shown in FIG. 2+Al FB+, the front side fr) of the movable plate 6 facing the opening 3 is aligned with the side of the three openings of the magazine M when the movable plate 6 is rotating in the α direction. It is slanted against. Therefore, when the movable plate 6 rotates in the β direction to eject the disk, the front side (rl) of the movable plate 6 does not protrude from the opening 3. is the same in the other disk storage spaces S1 and 82.In the space S1, the movable plate 4 works to stop and eject the disk, and in the space S2, the movable plate 5 works to prevent the above operation. 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. As shown in FIG. 2fBl, these take-out knobs 4e, 5e, and 6e protrude from the side of the cover 2 where the recess 2a is formed. The ejection knobs 4e, 5e, and 6e are used when ejecting the disc D manually. At this time, since the three take-out knobs 4e, 5e, and 6e are exposed in the recessed portion 2a, they can be operated from three directions: up and down and from the sides. In other words, the knobs 4e and 6e can be operated with fingers from above and below.
The knob 5e can be operated from the side with a finger. When replacing the disc in the magazine M, use the eject knobs 4e and 5e.
, 6e with fingers to rotate the movable plate 4.5.6 in the β direction, the desired disk D is ejected from the spaces S, , S, , S by the ejection bins 4c, 5c, 6c. be able to. The guide bar 2 has an inclined surface 2b formed in front of the portion where the recessed portion 2a is provided (on the left side in the figure). By forming this inclined surface 2b, when inserting the magazine M, the knobs 4e, 5e, and 6e can be prevented from hitting other members in the device, and the movable plate can be prevented from being driven by mistake. do not have. As shown in FIG. 11, the front edge (r) of each movable plate 4, 56 on the opening 3 side has inclined surfaces 4f, 5f, 6f.
is formed. In the disk ejection/insertion mechanism described later, the disk D is returned from slightly above into the spaces S and S2, as shown by the arrows in FIG. Since the disk D is returned in a substantially horizontal direction, the opening area of the front edge of the movable plate 4.5.6 is expanded by the inclined surfaces 4f, 5f, and 6f, making it easier to guide the disk D into the space. ing. Further, as shown in Fig. 2 fAl, 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, and the lens 1C is installed and housed inside the window. It is now possible to check from the outside how many discs there are and in what space the discs are stored. 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 [B], with the magazine M held on the moving table A stored in the upper unit C, the light emitting element 9 faces the lower part of the lens IC, This light emitting element 9 allows the lens IC to be illuminated. In this device, during a disk exchange operation, the magazine M protrudes from the -H upper unit C together with the movable table A. For example, just before the magazine M protrudes from the -H upper unit C, for example, just before the magazine M protrudes, the light emitting element 9 is blinked to flash and illuminate the lens IC. It is possible to inform the user of the operating state, and also to inform the user of the functional feeling of the operation, thereby increasing the product value. Note that the entire rear end surface 1d may be made of a light-transmitting member, and the entire rear end surface may be illuminated by a light emitting element. Furthermore, the external shape of the magazine M is shown in Fig. 2 fA) f
As shown in Bl and FIG. 7, the rear end surface 1d has a substantially triangular chevron shape with its center protruding toward the front. By making the rear end surface 1d into a chevron shape in this way, both sides of the chevron can be easily mounted in the loaded state, that is, when the magazine A is retracted into the upper unit C together with the movable table A as shown in FIG. 4 (Bl). The surface [tl becomes a slope extending toward the device, making it easier to see the panel located below the magazine loading section from above through the front of the apex of the chevron (both sides of ul, the above-mentioned both sides ft).Therefore, the field of view of the device display is not obstructed by a loaded magazine.Also, since you can grasp the peak (U) of the chevron with your fingers from above and below, it is easy to hold the magazine when loading the magazine or taking it out after ejecting. Furthermore, by making the rear end surface 1d into a chevron shape, it becomes easier to recognize the insertion direction of the magazine and prevent incorrect insertion.Next, the structure of the upper unit C including the moving table A and the selection mechanism B will be explained. Figure 3 is a plan view of the upper unit hc, Figure 4 (Al FB
+ is a side view according to its 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 that it can be opened inwardly. In Figure 1, moving table A
7!15 It protrudes from the upper unit C, but as shown in Fig. 4 (
B) As shown in the figure, when the movable table A is retracted from the inside of the upper unit C, there is a door 19 in front of the nose part of the case in which this CD player unit C is housed.
! +! They will be located on the same plane. That is, when the movable table A is retracted, the insertion opening for the magazine M is formed in the portion of the door 19 where the force S is formed. The magazine M is inserted through this insertion port when the movable table A is inserted into the upper unit C. Then, the door 1941 is maintained in a state of being moved eight times inward (see Figure 7). The inserted magazine M is opened/inked in the moving table A by the opening/inking mechanism described later, and thereafter the magazine M and the moving table A are connected until it is ejected. 'i-body state. As shown in FIGS. 1 and 3, a pair of sliding holes 11d are bored in the bottom plate 11a of the movable table A, and two lock bins 12 protrude from the sliding holes 11d. The pair of lock bins 12 also include the lower surface of the bottom plate 11a.
A lock lever 13 is provided to support and support each of the two. 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 biases the lock lever 13 and each lock bin 12 in the e1 direction. Also, the upper number of the lock lever 13 in FIG.

[=protrusion 1
3a is provided. Furthermore, the bottom plate 1 of the moving table A
A guide hole 11f having an arcuate trajectory is bored in 1a, 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. Between the ejector lever <-16 and the protrusion 11g on the inner end of the bottom plate 11a, a lock pin 18 is applied, which biases the ejector lever 16 and the lock pin 15 (in the f1 direction). As shown in the third section, this movable table At, the lower surface number C of the bottom plate 1a of the magazine M to be loaded, the guide slope 1e and the opening/ink groove 1f following this, and A guide slope 1g and a mouth/neck groove 1h following the guide slope 1g are formed.Furthermore, a pressing step 11 is formed on the side of the guide slope 1g.
f, lh and the pin press 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 ejection operation for ejecting the magazine M from the movable table A is performed with the movable table A being inserted into the upper unit C, as shown in FIG. 4fB). In this state, when the magazine M is inserted by pushing open the door 19, the lock bin 12 is moved in the opposite direction to (e) by the guide slopes 1e and Ig on the lower surface of the case, and when further inserted, the spring 1
The lock lever 13 is bent in the direction (e) by the force of 4.
The lock bin 12 enters the lock grooves if 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 11, 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 backward in the opposite direction to (el) by the mechanism described later, the lock pin 12 comes out of each lock groove if and 1h, the lock is released, and the biasing force of the spring 18 is released. As a result, the eject bin 15 pushes the pressing step 1i, and the magazine M is ejected from inside the moving table A to the left in FIG. 3. As shown in FIG. 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. The sliding bottle 22 is inserted into the guide groove 21b, and the moving table A 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 fAl, 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 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. As shown in FIG. 1 and FIG. 4 (Al FB), a lock plate 2 is attached to 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 urged counterclockwise by a spring 28. A notch 21d is formed at the upper end of the side plate 21a, and a bent portion 26a at the tip of the lock plate 26 is inserted into this notch 21d. When the lock plate 26 is rotating counterclockwise as shown in FIG. Movement of table A into cover 21 is prevented. As will be described later, when the disk D in the magazine M is selected and pulled out, as shown in FIG. During this selection and pull-out operation, the bent portion 26a of the lock plate 26 faces the rear end of the movable table A as described above, so that even if the movable table A is pushed by mistake, the upper unit C does not close. In addition, when the moving table A is retracted into the cover 21, the lock plate 26 is driven clockwise, the bent portion 26a is removed from the rear end of the moving table A, and the moving table A is 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 to pull out the disk D from the inside of the magazine M. That is, as shown in FIG. 4 IA), the lower driven roller 3 inside the cover 21 is held by a roller holder 32, and the roller holder 32 is held by a pin 33 on the side plate 21a of the cover 21 as well as on the opposite side. It is rotatably supported by the 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 ejection/insertion roller 41 that contacts the twenty roller 31 from above. The lock plate 26 is biased counterclockwise by a spring 28, and this biasing 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 moves toward the ejection/insertion roller 41. is biased in the direction of pressure contact. Therefore, when the vertical position of the discharge/insertion roller 41 is changed, the rotational attitude of the roller holter 32 changes accordingly, and the attitude of the lock plate 26 is controlled via the connecting link 36. That is, when the discharge pressure insertion roller 41 is lowered, the lock plate 26 rotates clockwise, and the discharge pressure insertion roller 4 is rotated clockwise.
1, 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 to the movable table, and the lock The plate 26 rotates significantly clockwise, the roller holder 32 is driven clockwise via the connecting link 36, and the lower driven roller 31 escapes downward.In other words, the rollers 31 and 41 move the magazine M Figure 4 (
In the state shown in A1 and 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. As shown in the lower part of FIG. 3, the other side of the swing base 42 is rotatably supported by a pin 44 on the lower side plate 11b of the moving table. As shown, the mechanism base 40 is provided with a lifting block 45 that moves up and down. 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 row 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 the mechanism base 40, on which the ohm wheel 51 is fixedly installed at the bottom thereof, is provided with a motor M1 for lifting and lowering, and the rotation of this motor M is 5 ohms installed on the shaft
2 is engaged with the ohm wheel 51 mentioned above. When the ohm wheel 51 and the drive screw 49 are driven by the motor M1, the lifting 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 M, and as a result, the ejection/insertion roller 41
moves to each position shown on the left side of FIG. Fourth
In the state shown in Fig. fA) and Fig. 11, the lower driven roller 3 is
1 is in pressure contact with the ejection/insertion roller 41, so that the lower driven roller 31 follows the vertical movement of the ejection/insertion roller 41. In FIG. 11, when the ejection/insertion roller 41 is at a height of (0), it is the original position, (11 is the 1#i!! selection position,
(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) is the ejection/insertion position of the disk D in the IPi-th disk storage space S in the magazine M, (2) is the ejection/insertion position of the disk D in the second stage disk storage space S2, (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 a motor M 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 detection holes are formed in this detection rotating body 55 for one rotation, and these holes are detected by an optical detector 56. Also, in the lifting block 45, there are holes extending to the right in FIG. A detection arm 45a is formed, and a detection switch SW1 faces below the 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.
1 is turned on, the ejection/insertion roller 41 is in its original position as shown by (0) in FIG. When the motor M drives the worm wheel 51 to raise the lifting block 45 from its original position, the gear 54 integrated with the worm wheel 51 drives the detection rotating body 55, and the optical detector 56 outputs a detection output for each detection hole. is obtained. 2 to the detection rotating body 55
In the case where two detection holes are formed, for example, when the detection rotary body 55 rotates from the original position and the optical detector 56 obtains a detection output of 11 pulses, the discharge/insertion roller 41 reaches the first stage selection position [11]. 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, 3! In this way, the detection output from the detection switch SW1 and the optical detector 56 determines the elevation value of the elevation block 45, which is the I selection position (3)! In addition, the position of the discharge/insertion roller 41 can 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 ohm 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 M2 is transmitted to the ejection/insertion roller 41 through each gear and the clutch, and the rotation of the ejection/insertion roller 41 in the counterclockwise direction in FIG. The disk D is returned into the magazine M by the rotation of the disk D. 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 on the upper side 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 fh)-(i) direction. This drive lever 81 is not shown overlappingly in FIG. 5, but is shown independently in FIG. 6(A). The drive lever 81 has elongated holes 81a and 81b. One elongated hole 81a is connected to the shaft 7 supporting the switching gear 74.
6, and the other elongated hole 81b is guided by a guide pin 82 provided on the mechanism base 40, thereby allowing the drive lever 81 to move freely in the (h)li) direction. Further, the drive lever 81 is urged in the fh) direction by a spring 83. A drive lever 81c is bent at the right end of the drive lever 81 in the drawing, and faces the right side of the cam 75. Further, a holder 81d is bent at the left end of the drive lever 81 in the drawing. Further, another plate member 84 is stacked on the right side of this holder 81d, and this plate member 84 is provided with a bent piece 84a. As shown in FIG. 5, the mechanism base 40 is provided with the drive screw 49.
A guide shaft 85 is provided parallel to this, and a switching body 86 is supported on this guide shaft 85. This switching body 86 is held by the lifting block 45 and can be raised and lowered together with it, and can also be rotated about the guide shaft 85. Third
As shown in the figure, one arm 86a of the switching body 86 is interposed between the halter 81d at the left end of the drive lever 81 and the bent piece 84a, and the switch is switched by moving the drive lever 81 in the (i1 direction). The switching body 86 is adapted to be driven clockwise in FIG.
b is provided. In FIG. 5, this driving arm 86b is opposed to the protrusion 13a of the lock lever 13 provided on the lower surface of the bottom plate 11a of the movable table A.6 In FIG. This shows the insertion roller 41 at its original position (0). When the elevating block 45 is raised by the power of the motor M1 and the ejection/insertion roller 41 moves from the first stage selection position (1) to the third stage selection position (3) shown in FIG. The drive arm 86a of the switching body 86 is the lock lever 1
The respective pressing members 4d, 5d, 6d (second
(see figure). Also, a holder 81d provided on the left side of the drive lever 81
A regulating body 87 is rotatably supported by a spring 88.
is biased so as to maintain the posture shown in FIG. When the magazine M is loaded, this regulating body 87
As shown by chain lines in FIG. 2(B), each of the pressing members 4d, 5d, 6d and the take-out knob 4e. 5e and 6e, and prevents the movable plates 4, 5, and 6 in the magazine M from rotating in 8 directions during operations other than disk ejection or insertion, and prevents the movement of the movable plates 4, 5, and 6 in the magazine M from rotating in 8 directions due to impact etc. This prevents the disk D from jumping out from the opening 3. 3 and 6 (In the Al state, the drive lever 81 is moved in the fh1 direction by the spring 83, but when the switching gear 74 rotates 360 degrees clockwise or counterclockwise from this state, its operation At the beginning of Figure 6 (Bl
As shown, the cam 75 moves the drive lever 81 to (i1
The switching body 86 sandwiched between the holder 81d and the bending piece 84a is driven clockwise in FIG.
Further, the regulating body 87 is tilted clockwise by the driving arm 86b of the switching body, and the regulating body 87 is moved to each of the take-out knobs 4e, 5e. 6e, and each movable plate 4.5.6 becomes rotatable in the β direction. At this time, if the height position of the lifting block 45 is the original position (0), the drive arm 86 of the switching body 86
The lock lever 13 of the movable table A is driven by the drive arm 86b, and when the lock lever 13 of the movable table A is moved from the 1st stage switching position (1) to the 3rd stage switching position (3), the pressing member 4d shown in FIG. . 5d, 6d is driven, the movable plate 4, 5, or 6 is driven in the β direction, and the disk D in the magazine M is ejected from the opening 3 by the ejection pin 4c, 5c, or 6C. When the switching gear 74 further rotates, FIG.
Thereafter, the position of the drive lever 81 remains the same, but the position of the drive lever 81 remains the same.
When the drive lever 81 is rotated 0 degrees, the drive lever 81 is rotated as shown in FIG.
Return to position. The power of the motor M8 is not only transmitted to the switching gear 74, but also transmitted 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 these two power transmission paths is as follows. First, in the operation of removing a disk from the magazine M, the motor M continues to rotate the ejecting/inserting roller 41 counterclockwise, and at the same time, the switching gear 74 rotates 360 degrees clockwise. Therefore, the drive lever 81 is initially pulled in the fi) direction, and the switching body 86 rotates clockwise and remains in that position.
When the drive lever 81 has rotated 360 degrees, the drive lever 81 returns to the (h1 direction) and the switching body 85 returns to the position shown in FIG. 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 fi) direction, and when it has rotated 360 degrees, it returns to the lh) 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. Female screw holes (bl are provided in two places in the side plate 100a, one place in the side plate 100b, and one place in the sub-base 101) to which the side plates 21a and 210 of the cover 21 of the upper unit C are screwed. Damper 1 inside
02a and 102b are supported, and dampers 102C and 102d are provided at the bent portions 100c and 100d of the base 100 shown in the upper part of FIG. It is provided. That is, chassis 1 of playback unit F
Each support shaft 104a, 104b provided in 03
, 104c, 104d are the dampers 102a-102d.
are inserted in each. Each damper is, for example, a rubber bag in which air or other fluid is sealed. In addition, as shown in FIG.
The chassis 103 includes a plurality of coil springs 105a,
It is suspended from the No. 8 heath 100 or the sub-base 101 by 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 rotationally driving 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. Further, 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 disk D loaded on the turntable 106. , thus the performance is performed. Fig. 9 fAl CB+ and Fig. 11 show the playback unit F elastically supported by the base 100 etc. from the side as described above. Fig. 9 fA shows the playing state in which the disc D is clamped. , FIG. 9 (Bl and FIG. 11 show a standby state (unclamped state) in which the disc D is not clamped. As shown in detail in FIG. 9 FB), the playback 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 rotatably supported by a shaft 104d inserted into the other damper l02d. This axis 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. 9 fA) [B). Clamp arms 110 are provided above the chassis 103 to face each other. The bin Ill provided on one side of the clamp arm 110 (FIG. 9(A) (the side on the near side of Bl) is connected to the bent portion 1 of the drive link 108.
It is rotatably supported by 08a. Also, Fig. 9 (Al
In CB+, a protrusion 110a is provided on the side of the clamp arm 110 on the back side of the paper.
A link 114 is connected between a bin 112 provided at Oa and a bin 113 provided at the support protrusion 103c of the chassis 103. When the drive link 108 rotates around the support shafts 104b and 104d by the mechanism described later, the support shaft 104b, the bin 111, and the bin 11
2 and 113 are in a parallel link relationship, so that the clamp arm 110 moves up and down relative to the chassis 103 of the playback unit F in a substantially horizontal position. Clamp arm 1
A clamper 115 is rotatably supported on the lower surface of the tip of the clamp 10 . A magnet is installed inside the clamper 115, and when the lamp 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. In addition, as shown in FIG. 9(A) and FIG. 11, a guide wire 116 is installed between the chassis 103 and the clamp arm 110. The lower end of the guide wire 116 is inserted into the small hole 103d formed in the chassis 103, and the upper end is fixed to the upper surface of the clamp arm 110 with a screw 117. When the clamp arm 110 rises as shown in FIG. 9 (Bl), the guide wire 116 is stretched diagonally on the chassis 103 and
When the guide wire 116 is lowered, the guide wire 116 is stored in a position along the surface of the chassis 103. As shown in FIG. 11, a turntable 1 on which a disc D is clamped
There is a height difference between 06 and 1 where rollers 31 and 41 for ejecting and inserting the disk D from the magazine M are provided. By providing the above guide wire 116, when the clamp arm 110 rises and the disk is unclamped, the disk D
The rear end of the chassis is lifted by the guide wire 116, and the disk D is now in an unclamped state.
It becomes easier to return the inside of the magazine M. Next, the structure of the 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 M3. A worm wheel 122 that meshes with the worm 121 is supported on the base 100. The power of the gear 123 integrated with the worm wheel 122 is transmitted to the gear 124.
．． 125, and further transmitted from gears 126 and 127 to transmission drive gear 128a. This transmission drive gear 1
28a 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 Mu provided in the lower unit E. Further, a gear 131 is provided coaxially with the gear 126 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. Small gear 1 driven by the power of motor Ms
32, the rack 133 is fkl -f in FIG.
The reduction ratio of each of the gears mentioned above is relative to the speed at which the transmission drive gear 128a drives the feed gear 24 shown in FIG. , the rack 133 is driven at about 1/3 of the speed. As shown in FIG. A drive regulation bin 136 is provided protruding from the drive lever 135. FIGS. 9fA) and 9fB) show the drive regulation bin 136 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 driving bar 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, so that it can freely slide in the fkl - (m1 direction with respect to the chassis 103. Also, the bent part 141a A spring 143 is applied between the clamp drive lever 141 and the inner surface of the chassis 103, thereby biasing the clamp drive lever 141 in the fk) direction. A hole 141b is formed in the clamp drive lever 141, and the left edge of the hole 141b is an engaging part 141c.
1d is formed, front: bending part 10 of self-driving link 108
A bin 144 provided at the lower part of 8a is connected to the drive groove 141.
It is inserted in d. In the state shown in FIG. 9 fAl, the drive regulating bin 136 extending from the drive lever 135
It is located in the hole 141b of the chassis 103 as well as in the escape hole 103g which is continuous with the guide groove 103f on the side surface of the chassis 103. At this time, the chassis 103 of the regeneration unit F is not restrained by the base 100 of the lower unit E, and the dampers 102a to 102d and the coil spring 1
It is floating elastically by 05a to 105c. At this time, the clamp arm 110 is lowered and the clamper 115 is pressing the disc D against the turntable 106.
The pressing force at this time is to move the clamp drive lever 141 to fk.
This is provided by the elastic force of the spring 143 that urges in the + direction. When the rack 133 is driven in the fm direction by the motor M3 through each gear, and the drive regulation bin 136 extending from the drive lever 135 that moves together with the motor M3 moves in the (m) direction, as shown in FIG. 9fBl,
The drive regulation bin 136 is connected to the guide groove 103 of the chassis 103.
At the same time as entering into f, the drive regulation bottle 136 engages with the engaging portion 141c of the hole 141b of the clamp drive lever 141, and drives the clamp drive lever 141 in the [m] direction. As a result, first, the drive groove 141d at the right end of the clamp drive lever 141 rotates the drive link 108 clockwise, causing the clamp arm 110 to rise. Further, the drive regulation bin 136 enters the guide groove 103f of the chassis 103, and the drive regulation bin 136 enters the clamp drive lever 14.
By pressing the first engaging portion 141C in the (111) direction, the dampers 102a to 102d and the coil springs 105a and 105b. The playback unit F, which had been elastically supported in a floating manner by 105c, becomes fixed to the base 100 of the lower unit. Here, a mechanism related to the mechanism for achieving the fixed state described above is located at the base 100 of the lower unit E, as shown in FIG.
is located at the bottom of the As shown in FIG. 8 and FIG. 1O, 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 installed. As shown in FIG. 8, a guide piece 100h is bent at the edge of the support table 100g, and a groove 151a formed in the regulating member 151 is engaged with this guide piece 100h. The bent guide piece 100i engages with a groove 151b formed in 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 FIG. 8 of the support table 100g bent from the base 100, and a regulation lever 153 is rotatable by a support bottle 152 implanted in this support portion 100j. It is supported by. In addition, the bent piece 153a of the regulating lever 153 and the support table 100
A spring 154 is applied between the bent piece 100 on the side of g, and the regulating lever 153 is biased clockwise. Further, since the locking portion 153b formed on the restriction lever 153 is locked to the restriction member 151, the urging force of the spring 154 causes the restriction member 151 to
is biased toward the left in the figure. Further, at the bottom of the base 100, a bar 1 is rotatably supported by a bin 155.
56, the tip of which 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. the motor M;
When the rack 133 is moving in the fk1 direction by the power of
Due to the biasing force of the spring 154, the regulation lever 153
is rotating clockwise, and as a result, the regulating member 151
is also pulled to the left in the figure. When the rack 133 is driven in the m1 direction by the power of the motor M, the lever 156 is driven clockwise by the pressing bin 158 which moves in the fm direction together with the rack 133, and the regulating member is moved via the connecting bin 157. 151 is bent to the right in the figure,
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 regulation lever 153 is formed with a regulation arm 153C, and the chassis 103 is formed with a bent portion 103J that faces this stationary arm 153C. As described above, when the rack 133 is driven in the (+++1 direction) by the motor M3, the regulating member 151 is driven to the right in the figure. 103h and 1031 are pressed by forces indicated by Fl and F8.This pressing force not only fixes the chassis 103, which had been floating elastically, in the unclamped state shown in FIG. 9(B), but also causes the chassis 1 to
03 is F, and F! the chassis 1 in that direction.
03 is moved and fixed. This amount of movement corresponds to the distance between the dampers 102a to 102d and the support shafts 104a to 104a.
104d is the range of allowable movement. As shown in Fig. 11, the disc from magazine M is pulled out in this unclamped state, but at this time, drive the playback unit F as far as possible to the right of Fig. Note that when the regulating member 151 is pressing the chassis 103 with the forces F and F2, the regulating arm 153c of the regulating lever 153 touches the bent portion of the chassis 103. 10
3j is pressed with the force of F4. In the unclamped state, as shown in FIG. 9 (Bl), the drive regulating bin 1 is
36 moves the chassis 103 via the drive lever 141 to F,
Since the pressing force is applied to the chassis 103, as shown in FIG. This is to match. Further, 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. Further, both guide plates 161 are connected by a shaft 164. Further, the guide plate 161 is urged counterclockwise in FIG. 11 by a spring 165 wound around the shaft 164. Each guide plate 161
A bent guide surface 161a is formed on the right side in the figure, and each guide plate 161 is provided with a roller 163 extending inward. The guide surface 161a and the opening 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 pulled out from the magazine M, as shown in FIG. belongs to. Furthermore, since the roller 163 is provided, when the magazine M moves with the moving table A to the right in FIG. It is now possible to follow. Furthermore, as shown in Fig. 11,
The lower driven roller 131 is located above the regulating member 151. As mentioned above, the power of the motor M provided in the lower unit E first drives the transmission drive gears 128a and 128b, and then the feed gear 24 of the upper unit C is driven, and the movable table A is moved by the rack 11k-. In addition, the rack 133 is driven by the power of the motor M3, and the clamp arm 100 is raised and lowered to clamp and unclamp the disc, and when unclamping, the drive regulation bin 136, regulation member 151, and regulation lever 153 are used to control playback. The chassis 103 of 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 1.
33 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. When the moving table A and the magazine M move and the moving table protrudes as shown in Fig. 4 fAl, the moving table A and the magazine M move.
Immediately after passing over the clamp arm 110, the clamp arm 110 begins to rise. Next, the operation of the CD drive unit having the above structure will be explained. Magazine and eject movable Loading and ejecting of the 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 FB+.
The operation of pulling the movable table A into the upper unit C is
This is done by the motor M of the lower unit E. When the motor M3 drives the transmission drive gears 128a and l28b counterclockwise through each gear, the upper unit C
The feed gear 24 provided on the side plate 21a of the cover 21 is driven clockwise, and the rack 11k (see FIG. 4 fAl FB+) on the side plate 11b of the moving table A is driven.
The moving table A is pulled 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 thus rotates counterclockwise, and the clamp arm 110 descends 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 shown by F, F, F, F shown in FIG. 10 does not act, and the chassis 103 of the regeneration unit F is elastically levitated by the dampers 102a to 102d and the coil springs 1058 to 105c. The situation is as follows. 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 Figure 4 (Bl), the cover 21
The bent portion 2 of the lock plate 26 provided on the side plate 21a of
6a is a state in which the lock plate 26 is rotated clockwise while riding on the upper edge of the side plate 11b to the moving table. 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 slopes le and Ig provided on the bottom of the case 1 of the magazine M is locked in the locks If and 1h (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.
When inserting a 0-length magazine M, which can move in the fe1 direction 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,
The lock bin 12 is fe by the guide slope 1e and Ig.
) 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 ejecting operation to eject the magazine M is performed when the moving table A and the magazine M are drawn above the reproduction unit F, as shown in FIG. 4 (Bl). When the eject command is issued, , selection mechanism B shown in FIG.
The worm wheel 51 is driven by the motor M, and the drive screw 49 integrated with the worm wheel 51 is driven to lower the lifting block 45. When the detection arm 45a turns on the detection switch SWI, the motor M1 stops. . 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 M provided in the selection mechanism B is driven, and the worm 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.
When the switching gear 74 is driven in the i1 direction and rotated 360 degrees, it returns to the h1 direction (as shown in FIG. The switching body 86 sandwiched between the bending piece 81d and the bending piece 84a is driven clockwise when viewed from above in FIG. is driven in the opposite direction to (el), and the lock bin 12 is fully locked in the magazine M.
The withdrawal comes from f and 1h. 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 second magazine M are performed with the magazine M shown in FIG. fB), 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 exchanging the disc from the playing state of FIG. 4 (Bl) will be explained below. In the disc exchanging operation, the motor M of the lower unit E is first driven from the state of FIG. 4 (B). The force is transmitted to drive gears 128a and 12 by a gear group shown in FIG.
8b, 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 in the counterclockwise direction, and the feed gear 24 provided on the side plate 21a of the upper unit C is driven counterclockwise, and the feed gear 24 provided on the side plate 21c of the upper unit C is driven counterclockwise. Power is applied to the moving table A, and the moving table A protrudes from the upper unit C. FIG. 7 shows the protruding state during the disk exchange operation. At this time, since the magazine M is held on the moving table A and the door 19 is rotated upward and protrudes, the user can recognize that the magazine M is not ejected, but that a disk replacement operation is in progress. . When the movable table A protrudes, the bent portion 26a of the lock plate 26 comes off the upper edge of the side plate 11b of the movable table A and rotates counterclockwise by the biasing force of the spring 28, as shown in FIG. 4 fAl. Therefore, the roller holder 32 is driven counterclockwise via the connecting link 36, and the lower driven roller 31 is pressed against the ejection/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 M of the lower unit E.
8a and 128b are driven and when the movable table A protrudes, the driving force of the same motor M is transmitted to the rack 133 via the gear group shown in FIG. 8, and the rack 133 moves in the (ffi) direction shown in FIG. driven to. Therefore, this rack 13
The clamp drive lever 141 provided on the chassis 103 of the playback unit F is driven in the (II+) direction by the drive regulation pin 136 provided on the drive lever 135 that is driven in the same direction as the playback unit F. Therefore, as shown in FIG. 9fB), the drive groove 141d of the clamp drive lever 141
As a result, the drive link 108 is driven clockwise via the bin 144, and the clamp arm 110 rises in a substantially horizontal position. Therefore, the clamp on the disc D on the turntable 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 above the disk D. Also, clamp arm 11
0, the inner end of the disk D is connected to the guide wire 1.
16, the lower driven roller 31 is lifted by the rotation of the roller holder 32 as described above, and the illustrated end of the disk D is held between the ejection/insertion roller 41 and the lower driven roller 31. Become. Further, as mentioned above, the rack 133 is shown in FIG.
l), and the drive lever 135 is moved in the drive regulation bin 1.
36 moves in the (m1 direction), as shown in FIG.
As shown in FIG. 3, the drive regulation bin 136 presses the chassis 103 in the direction F via the clamp drive lever 141. At the same time, the press bottle 158 moving together with the rack 133 drives the lever 156 clockwise, thereby pulling the regulating member 151 to the right and driving the regulating lever 153 counterclockwise. Therefore, as shown in FIG.
Fit into the V grooves 103h and 103i of 03 and attach the chassis 10.
3 in the Ft direction, and the chassis 103 is pushed in the Fs 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 F and F and is in a fixed state, and the playback unit F is moved to the opening 3 of the magazine M.
It has been moved slightly away from the body. 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, the motor M of the 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 to one of the selected positions 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 S is in the second stage of the magazine M, the ejection/insertion roller 41 is
The disk D is in the two-stage selection position shown in 2), and its end portion 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. 5d, 6
Opposite 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 M 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 74 shown in FIG. 6 FAI is driven counterclockwise. Motor M at this time,
The amount of rotation is determined by the switching gear 74 rotating 360 degrees and the cam 75 rotating 360 degrees.
The drive lever 81 moves in the (i) direction and further (h).
) This is the period of one reciprocating movement back in the direction. This reciprocating movement causes the holder 81 provided at the left end of the drive lever 81 to
d and the arm 86a of the switching body 86 located between the bent piece 84a.
is pressed, and the switching body 86 is driven clockwise in FIG. That is, the cam 75 shown in FIGS. 6(A) iB)
As a result, the drive lever 81 is first driven in the direction (i),
It stays like this for a while, and then the drive lever 81 is returned to the (h1 direction) just before the switching gear 74 completes its 360 degree rotation.Therefore, the switching body 86 rotates clockwise, stays like that for a while, and finally returns to the counterclockwise direction. While this switching body 86 is rotating clockwise, its driving arm 86b pushes the pressing member 5d provided on the second stage movable plate 5 of the magazine M shown in FIG. 2 in the β direction. The movable plate 5 is rotated in the β direction.At this time, as described above, the movable plate 5 is sandwiched between the ejection/insertion roller 41 rotating clockwise and the lower driven roller 31 in pressure contact with the ejection/insertion roller 41. The disk D is moved 2 times without being obstructed by the pressing member 5d of the magazine M.
It is returned to the disc storage space S in the third stage. When the 360 degree rotation of the switching gear 74 is completed and the switching body 86 shown in FIG. The spring 5b returns it to the α direction in FIG. Therefore, the disc D is pressed by the pressing member 5d (indicated by dl) and is held so that it does not protrude into the magazine M. This is the opposite of the disk return operation.For example, the top disk storage space S in the magazine M
, when pulling out the disc in the disc, the lift block 45 is raised by the motor M1 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 M8 drives the discharge/insertion roller 41 counterclockwise, and also drives the switching gear 74 clockwise. The amount of rotation of motor M2 at this time also corresponds to a period in which switching gear 74 rotates 360 degrees clockwise. Switching gear 74
The drive lever 81 is initially pulled in the fi) 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 fh direction.
Return to one 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 portion indicated by (cl) of the disk D stored in the uppermost disk storage space S is pushed by the ejection bin 6C provided on the movable plate 6, 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. The motor M2 is pulled out from the inner space S3 and sent to the right in FIG.
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 360 degree rotation. The amount of rotation of the ejection/insertion roller 41 is set so as to provide a sufficient period for the center of the disc D to reach the top of the turntable 106 . Actually, the ejection and insertion roller 41
The setting is such that the switching gear 74 has not yet completed 360 rotations when the disk is completely pulled out, and this time difference can be absorbed by the slippage of the clutch between the gears 64 and 66 shown in FIG. I have to. 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 S W r is turned ON, that is, the original position (0) shown in FIG. 11. . As a result, the end of the disk D that is still held between the rollers 41 and 31 is lowered, and the end of the disk is moved to the roller 163 shown in FIG.
Alternatively, it is guided to a position facing the guide surface 161a. Thereby, the subsequent movement of the disk to the left in the drawing 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 (0) but is positioned between the 1st stage selection position (1) 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 36 is bent at the inner end of the movable table A (
It is designed not to deviate from the vertical side indicated by gl. Therefore, during the disk exchange operation, the moving table A is prevented from moving in the rearward direction by the bending portion 26a, and even if the moving table A is accidentally pushed in the state shown in FIG. A does not enter into 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, it rotates together with the lower driven roller 31 which is pushed down by this. The lock plate 26 is rotated clockwise by the roller holder 32 that rotates. Then, the bent portion 26a comes to face the inclined surface t1g above the position shown in (g) of the inner end of the side plate 11b of the movable table A, and the movable table A
restrictions will be lifted. After that, the moving table A moves to the right, but at this time, the bent portion 26a of the lock plate 26 is guided by the inclined surface 1II2 at the inner end of the side plate 11b, and
As shown in FIG. 4 (Bl), the roller holder 32 rotates clockwise and the lower driven roller 31 separates from the disk and escapes downward. When is drawn into the upper unit C,
When the discharge/insertion roller 41 is at the original position (0), the roller 4
1 hits the clamp arm 110, etc., so the roller 4
1 reaches the top of the clamp arm 110, the lifting block 45 is raised again by the motor M1, and the ejection/insertion roller 4
1 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 M1 of the lower unit E is started, and the transmission drive gears 128a and 128b are driven counterclockwise through the gear group, and the feed gear 24 is driven clockwise. , 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 m1 direction in FIG.
driven in the direction. Therefore, the drive groove 1 of the drive lever 141
The clamp arm 110 is lowered by 41d. And disk D is clamper 115 and turntable 1
The clamper 115 presses the disk D against the turntable 106 by the elastic force of the spring 1430 which urges the drive lever 103. Further, as the rack 133 moves in the (m) direction, the subsequent opening member 151 returns to the left direction in FIG. 8, and the regulation lever 153 rotates clockwise.
Furthermore, as shown in FIG. 9 [Al], the drive-opening bin 136 is located within the hole 141b and the escape hole 103g. Therefore, the restraining force F1 on the chassis 103 shown in FIG.
F-Fs F4 is released, and the regeneration unit F is operated by each damper 102a 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 moving table A and the magazine M are pulled onto the clamp arm 110 as shown in FIG. 4fBl. 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 first stage selection position (1), the feeding direction of the contact point between rollers 41 and 31 is to), the feeding direction in the second stage selection position (2) is (pl, 314) The feeding direction is (ql), and the feeding force when returning the disk D to the magazine M is (0) and (pl, slightly downward, (
ql is almost horizontal. In the embodiment shown in FIG. 11, when the clamp arm 110 is raised, the right end of the disk D in the drawing is lifted to a considerably high position by the guide wire 116. Therefore, in the third stage selection position (3), the rollers 41 and 3
The feeding direction fql is made almost horizontal so that the disk D is returned to the space S while being lifted. At the second stage selection position (2) and the first stage selection position (1), the feeding direction is downward as shown by (pi and (ql), and the disk D lifted by the guide wire 116 moves into the space S in the magazine M. 81, thereby ensuring that the disk D can be returned to each space within the magazine.The direction of the above-mentioned feeding force depends on the height of the reference position of the disk D. In Fig. 11, the feed force is determined based on the 3rd stage selection position (3). Fig. 12 shows another example regarding this.
In the figure, at the second stage selection position (2) shown at fB+, the disk feeding direction fpl by the rollers 41 and 31 is approximately horizontal 6, and at the first stage selection position (1) shown at fA) in Figure 12, the roller 41 and 31, the feeding force of the disk toward the magazine is slightly downward, and the first
At the third stage selection position (3) shown in FIG. 2 fcl, 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, when the disk is not clamped in the state shown in FIG. 4 [B] and the disk is pulled out and clamped after a new magazine M is loaded. Similarly, the movement table A and the magazine M are protruded from the upper unit C, and 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 to this, and can also be applied to a playback device for home-use compact discs and the like. Furthermore, in the above embodiment, it is assumed that the disk playback unit F only performs the playback function; however, this disk playback unit is a unit for an optical memory device that can perform recording and playback, such as a magneto-optical disk. Good too. In the above embodiment, the movable plates 4.5.
6 is designed to rotate, but it may also move linearly in the three directions of the opening. Furthermore, in the structure of the magazine shown in FIG.
It is also possible to eject all the discs together by holding them with your fingers and rotating all the movable plates 4.5.6 together with the intermediate ejection knob 5e. Further, in the above embodiment, a disc player is shown in which the magazine is stored above the playback unit.
The present invention is not limited to this type of disc player, but is applicable to a conventional disc changer in which the magazine position 1 does not move and the discs pulled out from the magazine are loaded into a playback unit located in line with it. It can also be implemented. Further, in the above embodiment, of the pair of rollers that pull out the disk, only one of the ejecting and inserting rollers 41 is driven by the motor M.
, but the lower driven roller 31 may be driven by a motor, or both rollers 31 and 41 may be driven together. [Effects] As described above, according to the present invention, it becomes easy to take out the disks in the magazine, and it becomes easy to replace the disks in the magazine.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is an exploded perspective view of the upper and lower units of the disc play unit, FIG. 2 fAl is an exploded perspective view of the disc magazine, and FIG. 2 fB ) is a perspective view of the magazine seen from the opposite direction, FIG. 3 is a plan view showing the structure of the moving table and selection mechanism, and FIG. 4 (Al) and FIG.
3) is a side view showing the structure of the upper unit by operation;
The figure shows the selection mechanism;
Fig. 6 fAl is a front view showing the switching gear shown in Fig. 5 and the drive lever driven by the switching gear, Fig. 6 fBl
7 is an explanatory diagram showing the operating state of the drive lever, FIG. 7 is a perspective view showing the state in which the moving table protrudes during disk exchange operation, FIG. 8 is a plan view of the lower unit, and FIG.
FIG.
The figure is an enlarged side view showing the relationship between the magazine and the playback unit during disk exchange operation, and Figure 12 (Al fB) (Cl
FIG. 6 is an explanatory diagram 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, S... S
,. SL...Disc storage space, 1...Magazine case, 2...Cover, 2a-...Recess, 4.5.6
...Movable plate, 4b, 5b, 6b...Spring, 4
c. 5c, 6cm discharge bin, 4d, 5d, 6d...pressing member, 4e, 5e, 6e...take-out knob, 7...shaft,
31... Lower driven roller, 32... Roller holder,
36...Connection link, 24...Feed gear, 31...
・Lower driven roller, 41... Ejection insertion roller, 45.
... Lifting block, Ml... Lifting motor, M2...
・Motor that drives the roller, 86... Switching body, 87.
... Regulatory body, 100 ... Base of reproduction unit, 10
3... Chassis of reproduction unit, 106... Turntable (rotation mechanism), 110... Clamp arm,
115... Clamper.

Claims (1)

[Claims] 1. A playback unit equipped with a rotation mechanism that rotates a disk, a clamper that installs the disk in the rotation mechanism, and a pickup facing the disk, and a playback unit with an opening facing the playback unit and a plurality of disks inside the playback unit. A disc player having a disc selection function including a magazine in which a disc is stored, and a disc feeding mechanism located in front of an opening of the magazine to transport discs in the magazine toward the playback unit, the disc player having a disc selection function. Inside, there are multiple ejection mechanisms that correspond to each disk, and the ejection knob that operates these ejection mechanisms is located in a recess formed on the side of the magazine. A disc player having a disc selection function, characterized in that a take-out knob is exposed so that it can be operated from the top and bottom of the magazine, and an intermediate take-out knob is exposed so that it can be operated from the side of the magazine.