JP3832486B2 - Disk auto-changer device with double-sided disk reversing mechanism and double-sided disk reversing mechanism - Google Patents

Description

  In the present invention, a first tray for conveyance on which a double-sided disk is placed and a second tray for reversal formed in the same shape as the first tray and facing the double-sided disk on the first tray are respectively arranged in a lower stage and an upper stage. The present invention relates to a double-sided disk reversing mechanism for reversing a double-sided disk integrally with both trays by reversing a mounted reversing frame, and a disk autochanger device including a double-sided disk reversing mechanism.

  Conventionally, a large number of optical disks placed on a transport tray are stored in a magazine mounted in a housing, and a desired optical disk is pulled out from the magazine together with the transport tray to a disk carrier unit, and then moved up and down. A disc autochanger device capable of transporting a desired optical disc to a disc drive unit provided below the housing through a carrier unit, and recording and / or reproducing video information, audio information, etc. on the optical disc in the disc drive unit The present applicant has proposed in Japanese Patent Laid-Open No. 10-275399.

  Recently, an optical disc such as a DVD (Digital Versatile Disc) is formed so that both sides can be recorded and reproduced. Therefore, in the disc autochanger device disclosed in Japanese Patent Laid-Open No. 10-275399, only one side of the optical disc is recorded and / or recorded. Or improvement is required because it cannot be reproduced.

  Here, in a general disk drive apparatus that handles a double-sided optical disk (hereinafter referred to as a double-sided disk), optical pickups are provided above and below the double-sided disk to record / reproduce the A side and B side of the double-sided disk. Or a structure in which a single optical pickup wraps around the A side to the B side or the B side to the A side of the double-sided disc to record / reproduce the double-sided disc. In many cases, a transfer tray is not used.

  On the other hand, JP 2000-40284 discloses a disk surface switching mechanism in which a reversing tray and a disk transport tray are arranged above and below a double-sided disk, and the double-sided disk is reversed together with both trays. Has been.

23A to 23D are diagrams for explaining the basic principle of disk surface switching in a conventional disk surface switching mechanism;
FIG. 24 is a perspective view for explaining a conventional disk surface switching mechanism;
FIG. 25 is a perspective view showing a state in which the reverse of the double-sided disk is completed in the conventional disk surface switching mechanism.

  The conventional disk surface switching mechanism shown in FIGS. 23 to 25 is disclosed in the above-mentioned Japanese Patent Laid-Open No. 2000-40284, and will be briefly described here.

  First, in the conventional disk surface switching mechanism shown in FIGS. 23A to 23D, the basic principle of disk surface switching will be described. A disk on which a double-sided disk 201 is mounted as shown in FIG. A tray 202B prepared for reversal as shown in FIG. 23B is stacked on the transporting tray 202A so that the mounting surface faces the double-sided disk 201 on the tray 202A. Then, when the trays 202A and 202B are reversed by 180 ° as shown in FIG. 23C in an overlapped state (actually, they are reversed together with a carriage described later), the double-sided disc 201 is moved to gravity as shown in FIG. As a result, the surface of the double-sided disk 201 is switched since the disk transport tray 202A moves to the reversing tray 202B.

  Next, a conventional disk surface switching mechanism 210 will be described with reference to FIGS.

  As shown in FIG. 24, in the conventional disk surface switching mechanism 210, the main frame 211 is guided by the main guide shaft 212, and the carriage vertical feed lead screw 213 screwed into the main frame 211 is connected to the motor 214, The main frame 211 is provided so as to be movable up and down in the direction of the arrow by being rotationally driven via the belt 215.

  Also, the main frame 211 is formed with U-shaped protruding pieces 211a and 211b facing each other with a gap therebetween, and a shaft insertion hole is provided at each end of the protruding pieces 211a and 211b. In addition, end portions of a shaft 217 serving as a rotation shaft for reversing the carriage 216 are rotatably inserted into these holes.

  Further, both ends of the shaft 217 are pivotally attached to the first and second joints 218 and 219 which are attached to the upper surface plate 216a of the carriage 216 with a space therebetween, and the shaft 217 on the second joint 219 side is attached. A pulley 220 is fixed to the tip. A carriage reversing motor 221 is attached to the vicinity of the pulley 220 on the upper surface plate 216 a of the carriage 216. Further, the motor shaft of the carriage reversing motor 221 and the pulley 220 are connected by a driving force transmission belt 222, and the rotational force of the motor 221 is transmitted to the pulley 220 via the driving force transmission belt 222, whereby the pulley 220, When the carriage 216 rotates 180 ° around the shaft 217 integrally with the shaft 217 and the first and second joints 218 and 219, the carriage 216 is reversed.

  Here, the above-described carriage 216 is formed with upper and lower two-stage tray storage slots that are partitioned by partitioning pieces (not shown), and the tray 202B prepared in advance for inversion in the upper slot is turned upside down ( A disc carrying tray 202A placed with the A side of the double-sided disc 201 facing upward is housed in the lower slot, for example.

  A disk drive device 230 is provided on the disk inlet / outlet 216b side of the carriage 216, and the double-sided disk 201 placed on the tray 202A or the tray 202B from the disk inlet / outlet 216b of the carriage 216 is connected to the inside of the disk drive device 230 from the disk inlet / outlet 230a. It comes to be attached to.

  Then, as shown in FIG. 25, when the carriage 216 is reversed, the carriage 216 is positioned on the upper side of the main frame 211, and the slots in the carriage 216 are reversed upside down. As the tray 202B comes down, the double-sided disc 201 placed on the disc transport tray 202A reverses and switches from the A side to the B side, falls by gravity and moves onto the inversion tray 202B.

  Thereafter, the carriage vertical feed motor 214 is driven to move the main frame 211 downward, and the lower slot position in the carriage 216 is stopped at a position facing the disk entrance / exit 230a of the disk drive device 230. Thus, the reversing tray 202B placed with the B surface of the double-sided disc 201 facing up is inserted into the disc drive device 230.

  By the way, in the conventional disk surface switching mechanism 210 described above, the tray 202B prepared in advance for reversal and the disk transport tray 202A on which the double-sided disk 201 is placed are mounted in the upper and lower slots in the carriage 216. Although the double-sided disk 201 can be inverted together with the two trays 202A and 202B, it is considered that there are problems as described below.

  That is, when the carriage 216 is reversed, the double-sided disk 201 moves in the space formed between the trays 202A and 202B while following the gravity. As a result, there is a risk of damaging the signal surface of the double-sided disc 201.

The present invention has been made in view of the above problems, the invention of 請 Motomeko 1 wherein the first formed in the first tray and the first tray and the same shape for the transport of mounting a double-sided disc In a double-sided disk reversing mechanism for reversing the double-sided disk integrally with both trays by reversing a reversing frame body in which the second tray for reversal facing the double-sided disk on the tray is mounted on the lower stage and the upper stage, respectively.
With the base to be the base,
At the tips of the reversing frame on which the first tray and the second tray on which the double-sided disk is mounted are mounted, and a pair of lever means attached to the top and bottom of the reversing frame so as to be openable and closable. A pair of disk chucking members are arranged opposite to each other, and the pair of lever means are closed immediately before the reversing frame is reversed, so that the pair of disk chucking members enter the center hole of the double-sided disk from above and below. While holding the double-sided disc with the pair of disc chucking members, the pair of lever means are opened when the reversing frame is not inverted so that the pair of disc chucking members are removed from the center hole of the double-sided disc. A double-sided disk reversing assembly with disk chucking means for retraction;
The double-sided disk reversing assembly provided on the base is moved up and down between a lowered position and a raised position on the base, and the double-sided disk reversing assembly is moved when the double-sided disk reversing assembly reaches the raised position. Driving means for reversing the assembly,
The disk chucking means closes the pair of lever means in conjunction with the upward movement of the double-sided disk reversing assembly, and opens the pair of lever means in conjunction with the lowering of the double-sided disk reversing assembly. This is a feature of a double-sided disk reversing mechanism.

The invention according to claim 2 is the double-sided disk reversing mechanism according to claim 1 ,
The double-sided disk reversing mechanism is characterized in that locking means is provided for locking the double-sided disk reversing assembly to the base when the double-sided disk reversing assembly reaches the lowered position.

According to a third aspect of the present invention, there is provided a first tray for conveyance on which a double-sided disk is placed, and a first tray for reversal formed in the same shape as the first tray and facing the double-sided disk on the first tray. A disk autochanger device having a double-sided disk reversing mechanism for reversing the double-sided disk integrally with both trays by reversing the reversing frame body with the two trays mounted on the lower and upper stages,
A magazine in which a plurality of sets of the first trays on which the double-sided discs are placed are stacked substantially horizontally;
A disk drive unit for recording and / or reproducing the double-sided disk;
A carrier base provided between the magazine and the disk drive unit so as to be movable up and down; a tray pulling mechanism provided on the carrier base so as to be movable in the longitudinal direction of the first and second trays; A pair of reversing frames on which the first tray and the second tray on which a double-sided disk is mounted are mounted, and a pair of lever means attached to the top and bottom of the reversing frame so as to be openable and closable. The disk chucking members are arranged opposite to each other, and the pair of lever means are closed immediately before the reversing frame is reversed, so that the pair of disk chucking members enter the center hole of the double-sided disk from above and below. While holding the double-sided disc with the pair of disc chucking members, the pair of lever means is opened when the reversing frame is not inverted. A double-sided disk reversing assembly provided with a disk chucking means for retracting a pair of disk chucking members from the center hole of the double-sided disk; and the double-sided disk reversing assembly provided on the carrier base; A double-sided disk reversing / carrier unit having a drive means for vertically moving the double-sided disk reversing assembly when the double-sided disk reversing assembly reaches the raised position. Made up of,
The disk chucking means closes the pair of lever means in conjunction with the upward movement of the double-sided disk reversing assembly, and opens the pair of lever means in conjunction with the lowering of the double-sided disk reversing assembly. A disc autochanger device having a featured double-sided disc reversing mechanism.

Furthermore, the invention described in claim 4 is a disk autochanger device including the double-sided disk reversing mechanism according to claim 3 ,
A disk autochanger device having a double-sided disk reversing mechanism, characterized in that a locking means is provided for locking the double-sided disk reversing assembly to the carrier base when the double-sided disk reversing assembly reaches the lowered position. It is.

According to the disk auto-changer device provided with the double-sided disk reversing mechanism and the double-sided disk reversing mechanism according to the present invention described in detail above, in particular, the double-sided disk reversing assembly includes a first tray for transporting a double-sided disk and the first tray. A reversing frame body in which a second tray for reversing formed in the same shape as the first tray is mounted on a lower stage and an upper stage, and a pair of levers mounted on the upper and lower sides of the reversing frame body so as to be openable and closable. A pair of disk chucking members are arranged opposite to each other at the tip of the means, and a pair of disk chucking members are entered into the center hole of the double-sided disk from above and below by closing the pair of lever steps just before the reversing frame is reversed. While holding the double-sided disc with the pair of disc chucking members, the pair of lever means are opened when the reversing frame is not inverted to open the pair of discs. Disk chucking means for retracting the chucking member from the center hole of the double-sided disk, so that when the double-sided disk is reversed by inverting the double-sided disk reversing assembly, the upper and lower disks are placed in the center hole of the double-sided disk. Since at least one of the chucking members enters and the movement of the double-sided disk in the radial direction is restricted, the double-sided disk does not dance in the space formed between the first and second trays due to the gravity applied during reversal. The signal surface of the double-sided disc is not damaged, and the reliability during inversion can be improved.

  Further, when the double-sided disk reversing assembly is moved up and down between the lowered position and the raised position on the base (or on the carrier base), the disk chucking means is interlocked with the upward movement of the double-sided disk reversing assembly. The pair of lever means are closed while the pair of lever means are opened in conjunction with the lowering of the double-sided disk reversing assembly. Therefore, it is necessary to provide a drive source for opening and closing the pair of lever means in the double-sided disk reversing assembly. There is no.

  Further, when the double-sided disk reversing assembly is moved up and down between the lowered position and the raised position on the base (or on the carrier base), when the double-sided disk reversing assembly reaches the lowered position, Since the locking means for locking the three-dimensional object with respect to the base (or the carrier base) is provided, the double-sided disk reversing assembly is positioned at the lowered position on the carrier base and the first double-sided disk placed thereon in the locked state. The drawer operation of the tray or the second tray can be reliably performed.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of a disk autochanger device having a double-sided disk reversing mechanism and a double-sided disk reversing mechanism according to the present invention will be described below with reference to FIGS. Details will be described in the order of tray>, <double-sided disk reversal / carrier unit>, <disk drive unit>.

<Overall configuration of disk autochanger device>
FIG. 1 is a perspective view showing the overall configuration of a disk autochanger device to which a double-sided disk reversing mechanism according to the present invention is applied.

  As shown in FIG. 1, in a disk autochanger device 1 to which a double-sided disk reversing mechanism according to the present invention is applied, a plurality of double-sided disks 3 are attached in a vertical direction facing each other with a space left and right inside a housing 2. A magazine 10 (10A, 10B) for storing a plurality of first transport trays (hereinafter referred to as “transport trays”) 4A stacked in a substantially horizontal manner, a left magazine 10A, and a right magazine 10B. Between the magazines 10 (10A, 10B), and the transfer tray 4A on which the desired double-sided disk 3 is placed is pulled out in the direction of the arrow X1 or the direction of the arrow X2. In addition, in a double-sided disk reversing assembly 120 (FIG. 15) described later, a reversing second tray (hereinafter referred to as reversing) having the same shape above the double-sided disk 3 on the transporting tray 4A. 4B is mounted in advance, and the double-sided disk reversing assembly 120 is reversed as necessary to reverse the double-sided disk 3 integrally with both trays 4A and 4B, and the double-sided disk 3 on the transport tray 4A is reversed. Alternatively, the double-sided disk 3 on the reversing tray 4B is conveyed to the lower disk drive unit 180, and when the recording and / or reproduction on the double-sided disk 3 is completed in the disk drive unit 180, the double-sided disk 3 has been reversed. In this case, the double-sided disk is reversed and the double-sided disk 3 is placed on the transport tray 4A before the reverse and returned to the original storage position in the magazine 10 and the double-sided disk reversing / carrier unit 20 and the right side of the magazine 10B. A disc drive unit that is arranged and records and / or reproduces the A side (upper surface) or B side (lower surface) of the double-sided disc 3 It is schematically composed of 80..

<Magazine and tray>
2A and 2B are perspective views for explaining the magazine shown in FIG. 1. FIG. 2A is an external view of the magazine, and FIG. 2B is a state in which a transfer tray on which a desired double-sided disk is placed is pulled out from the magazine. Figure showing
FIGS. 3A and 3B are a plan view and a cross-sectional view for explaining the transfer tray and the reverse tray shown in FIG.

  As shown in FIGS. 2A and 2B, the magazine 10 (10A, 10B) is formed in a symmetrical shape so as to be attached to the left and right in the housing 2, and the front surface 10a side of the magazine 10 is opened. A plurality of tray guide grooves 10b1 and 10c1 are formed on the inner sides of the left and right side surfaces 10b and 10c of the magazine 10 from the upper side to the lower side so as to face each other in parallel. A plurality of sets of transport trays 4A on which the paper is placed can be stacked in parallel and stored. At this time, the number of stages of the plurality of tray guide grooves 10b1 and 10c1 is appropriately set to, for example, 30 stages or 50 stages according to the number of sheets stored in the transport tray 4A.

  In addition, slits for detecting the stacking number of the transport tray 4A corresponding to the plurality of tray guide grooves 10b1 and 10c1 are formed on the bent front surfaces 10b2 and 10c2 which are bent to the left and right while being connected to the left and right side surfaces 10b and 10c of the magazine 10. A plurality of 10b3 and 10c3 are formed.

  When the magazine 10A is attached to the left side in the housing 2, a tray lock mechanism 11A and a handle 12 are provided outside the left side surface 10b of the magazine 10A. The tray lock mechanism 11A is configured to be able to lock, for example, every 10 sheets of the transport tray 4A on which the double-sided disk 3 is placed. Accordingly, assuming that, for example, 50 transport trays 4A are stored in the magazine 10A, five sets of tray lock mechanism portions 11A are required. On the other hand, the handle 12 assists when carrying or carrying the magazine 10A.

  When the magazine 10B is attached to the right side in the housing 2, a tray lock mechanism 11B (not shown) symmetrical to the tray lock mechanism 11A is provided outside the right side surface 10c of the magazine 10B. A handle 12 may be provided.

  Next, as shown in FIGS. 3A and 3B, the transfer tray 4A for placing the double-sided disk 3 is symmetrical in order to be retractable and stored in the left and right magazines 10A and 10B. It is formed into a shape. Further, the reverse tray 4B has the same shape as the transport tray 4A, and the transport tray 4A is for storage in the magazines 10A and 10B, while the reverse tray 4B is the double-sided disc 3. Is mounted in advance in a double-sided disk reversing assembly 120 (FIG. 15) to be described later.

  Here, the transfer tray 4A will be described, and the description of the reversing tray 4B having the same shape as this will be omitted. However, the transfer tray 4A has a total thickness of about 2.5 mm using a resin material or the like. A circular concave 4a1 is formed on the upper surface 4a side, which is formed in a thin circular concave shape so as to position and mount the double-sided disk 3 having a diameter of 12 cm. Disk presence / absence detection holes 4a11 and 4a11 for detecting the presence / absence of the double-sided disk 3 by a photo sensor provided in the carrier base 41 (FIG. 9) are formed in the upper and lower parts of the circular concave step 4a1. In addition, in the center of the circular concave step portion 4a1, there is an escape hole 4a12 that faces a turntable 183 and an optical pickup 184 in a disk drive unit 180 (FIG. 22) described later. I have been listening bored. A plurality of positioning round holes 4a2 and a plurality of positioning ellipse holes 4a3 are formed above and below the upper surface 4a of the transfer tray 4A.

  Further, on the side surface in the longitudinal direction of the transfer tray 4A, tray guide grooves 10b1 and 10c1 of the magazine 10 (FIG. 2) and tray guide grooves (122a and 123a) provided in the double-sided disk reversing assembly 120 (FIG. 15) are provided. , (122b, 123b) are formed in a thin plate shape along the longitudinal direction. In addition, locking recesses 4b1 and 4c1 for engaging with the tray lock mechanism portions 11A and 11B of the left and right magazines 10A and 10B are formed in the center of the guide portions 4b and 4c.

  Further, on the side surface in the short direction of the transport tray 4A, clamp portions 4d and 4d for pulling out from the left magazine 10A and clamp portions 4e and 4e for pulling out from the right magazine 10B are opposed to each other. It is formed in a “U” shape.

  As shown in FIG. 2B, the transfer tray 4A on which the double-sided disc 3 housed in the magazine 10 is placed has a tray pulling mechanism 60 provided in the double-sided disc reversing / carrier unit 20 as will be described later. (FIG. 9), it can be pulled out on the carrier base 41 or returned to the original storage position in the magazine 10.

  Further, when the transfer tray 4A on which the double-sided disk 3 is placed is stored in the magazine 10, the A surface (upper surface) 3a side of the double-sided disk 3 is positioned upward in the circular concave step portion 4a1 of the transfer tray 4A. Therefore, even when the double-sided disk 3 is reversed from the A-side 3a to the B-side 3b as described later, the double-sided disc 3 is changed from the B-side 3b to the A-side 3a before being returned into the magazine 10. By inverting again and returning to the magazine 10, it is possible to omit the operation of detecting the mounting state of the double-sided disk 3 on the transport tray 4 </ b> A in the magazine 10.

<Double-sided disc inversion / carrier unit>
FIG. 4 is a perspective view showing an overall configuration of the double-sided disk reversing / carrier unit, and showing an initial state in which the double-sided disk reversing assembly of the double-sided disk reversing mechanism provided on the carrier base has reached the lowered position;
FIG. 5 is a perspective view showing the entire configuration of the double-sided disk reversing / carrier unit, and showing a state where the double-sided disk reversing assembly of the double-sided disk reversing mechanism portion provided on the carrier base has reached the ascending position;
FIG. 6 is a plan view of the double-sided disk reversal / carrier unit.
FIG. 7 is a front view of the double-sided disk reversing / carrier unit, and shows an initial state in which the double-sided disk reversing assembly of the double-sided disk reversing mechanism provided on the carrier base has reached the lowered position;
FIG. 8 is a front view of the double-sided disk reversing / carrier unit, and shows a state where the double-sided disk reversing assembly of the double-sided disk reversing mechanism portion provided on the carrier base has reached the ascending position;
FIG. 9 is a perspective view showing a state where the double-sided disk reversing mechanism portion provided on the carrier base is removed in the double-sided disk reversing / carrier unit;
FIG. 10 is an enlarged perspective view for explaining the mechanism for locking the tray lock releasing mechanism portion and the double-sided disk reversing assembly shown in FIG. 9 to the carrier base,
FIGS. 11A to 11C are views for explaining the operation of the tray lock release mechanism and the operation of locking the double-sided disk reversing assembly that has reached the lowered position with respect to the carrier base.

  As shown in FIGS. 4 to 8, the double-sided disk reversing / carrier unit 20 is a main part of the present invention, and can be moved up and down by being guided by a guide rail (not shown) in the housing 2 (FIG. 1). And a tray lock mechanism provided on the left and right magazines 10 (10A, 10B) provided on the front surface 21a side of the carrier base 21 so as to be movable in the directions of arrows X1 and X2. The tray lock releasing mechanism 40 for releasing the lock of the portions 11A and (11B) and the back side 21d side of the carrier base 21 are movable in the longitudinal direction (arrow X1, X2 direction) of the transport tray 4A and the reverse tray 4B. The tray 4A for transporting the tray pulling mechanism 60 and the double-sided disk 3 pulled out from the magazine 10 in the double-sided disk reversing assembly 120 is mounted at the lower position. At the same time, the reversing tray 4B is mounted in advance above the double-sided disk 3 on the transporting tray 4A, and the double-sided disk reversing assembly 120 is mounted on the carrier base by the drive unit 100 and the pair of pantograph units 90 and 90 as necessary. 21 and a double-sided disk reversing mechanism unit 80 that moves from a lowered position to a raised position and reverses the double-sided disk reversing assembly 120 at the raised position.

  First, as shown in FIG. 9, the carrier base 21 and the components provided on the carrier base 21 with the double-sided disk reversing mechanism portion removed will be described.

  The carrier base 21 serving as the base of the double-sided disk reversing / carrier unit 20 described above is formed in a substantially box-like rigid body using an aluminum material or the like. The carrier base 21 has a front surface 21a located on the front surface side of the housing 2 (FIG. 1), left and right side surfaces 21b and 21c facing the left and right magazines 10 (10A and 10B), and a back surface 21d. It is located on the back side of the housing 2.

  Also, on the back surface 21d of the carrier base 21, a vertically moving support plate 22 that supports the entire double-sided disk reversal / carrier unit 20 so as to be vertically movable is integrally attached using an aluminum material or the like. The above-described vertical movement support plate 22 is detachably attached to the rear surface 21d of the carrier base 21, and is shown only in FIG.

  Here, although the detailed illustration of the carrier unit up-and-down moving mechanism for moving the double-sided disk inversion and the carrier unit 20 up and down is omitted, the above-described up-and-down moving support plate 22 is provided by a guide rail that is suspended in the interior of the housing 2. It is guided so that it can move in the vertical direction, and the drive force from the motor is transmitted via transmission members such as gears, timing pulleys, timing bells, etc. Has been.

  Photosensors 23A, (23B ... not shown) are attached to the left and right of the rear surface 21d of the carrier base 21 via brackets 24A, (24B ... not shown), and these photosensors 23A, (23B). Thus, by detecting the slits 10b3 and 10c3 (FIG. 2) provided on the left and right of the magazine 10, it is possible to detect the position of the number of stages of the transport tray 4A.

  In addition, tray stoppers 25A and 25B are formed in a substantially L shape symmetrically toward the left and right magazines 10A and 10B in front of the left and right photosensors 23A and (23B) provided on the back surface 21d side of the carrier base 21. Thus, the tray stoppers 25A and 25B are engaged with the left and right magazines 10A and 10B so that the transport trays other than the transport tray 4A on which the desired double-sided disk 3 is placed are not pulled out to the double-sided disk reversing / carrying unit 20 side. is doing.

  In addition, positioning holes 21e1 are formed in four bosses on the upper surface 21e of the carrier base 21 in the vicinity of the left and right ends on the front side and in the vicinity of the left and right ends on the back side, respectively. When the position 120 reaches the lowered position, the positioning projections 122c1 and 122d1 formed on the upper and lower surfaces of the front-side tray support plate 122 of the double-sided disk reversing assembly 120 shown in FIG. Of the positioning protrusions 123c1 and 123d1 formed on the upper and lower surfaces of 123, the pair of positioning protrusions (122c1, 123c1) or (122d1, 123d1) positioned on the lower side is fitted, so that the double-sided disk reversing assembly 120 is The carrier base 21 is positioned on the upper surface 21e.

  In addition, tray type detection holes 21e2 and 21e3 are formed on the upper surface 21e of the carrier base 21 in the vicinity of the center in the width direction on the front surface side. When the double-sided disk reversing assembly 120 reaches the lowered position, the front side Of the two tray type detection pieces 122e1 and 122e2 (FIG. 15) formed above and below the tray support plate 122, the lower tray type detection pieces 122e1 and 122e2 enter the tray type detection holes 21e2 and 21e3. The two photo sensors (not shown) attached to the back surface of the carrier base 21 can detect whether the transport tray 4A side or the reversing tray 4B side is detected based on 2-bit information from the tray type detection pieces 122e1 and 122e2. ing.

  Further, a cam piece 21e4 is formed on the upper surface 21e of the carrier base 21 to the left of the front side in the width direction central portion so as to protrude upward. The cam piece 21e4 is formed above and below the front side tray support plate 122. This acts on a pair of disc chucking mechanism portions 150 and 150 (FIG. 15) attached substantially symmetrically, which will be described later.

  In addition, a lock hole 21e5 is formed in the center in the width direction on the front side on the upper surface 21e of the carrier base 21, and when the double-sided disk reversing assembly 120 reaches the lowered position, the front side tray support plate 122 Of the double-sided disk reversing assembly locking pieces 122e3 and 122e3 formed on the top and bottom, the double-sided disk reversing assembly locking piece 122e3 located on the lower side enters the lock hole 21e5 and is attached to the back surface of the carrier base 21. The double-sided disk reversing assembly locking piece 122e3 is engaged with a lock member 54 (FIG. 10) described later, so that the double-sided disk reversing assembly 120 is securely locked to the carrier base 21 in the lowered position. ing.

  Further, a tray presence / absence detection lever 26 is rotatably supported on the upper surface 21e of the carrier base 21 to the right of the center in the width direction on the back side, and one end side of the tray presence / absence detection lever 26 is a torsion spring (not shown). And the other end via the rotation shaft 27 enters a tray presence / absence detection hole 21e6 formed in the upper surface 21e of the carrier base 21 by the biasing force. It faces a photo sensor (not shown) attached to the back surface of the base 21. When the double-sided disk reversing assembly 120 reaches the lowered position, one end side of the tray presence / absence detection lever 26 determines whether or not the transport tray 4A or the reversing tray 4B is on the lower side of the double-sided disk reversing assembly 120. It is detected by pressing. Here, in particular, when starting the disk autochanger device 1, it is a necessary condition that the reversing tray 4B is mounted in the upper position in the double-sided disk reversing assembly 120 in the initial state as will be described later. Therefore, when the disk autochanger device 1 is started, the double-sided disk reversing assembly 120 is always raised once and reversed at the raised position, then the double-sided disk reversing assembly 120 is lowered, and the double-sided disk reversing assembly 120 is lowered at the lowered position. The presence / absence of the reversing tray 4B is confirmed by the tray presence / absence detection lever 26 at the lower position, and after the confirmation, the double-sided disk reversing assembly 120 is reversed again, so that the reversing tray 4B A check is made so as to be positioned in advance.

  A tray lock release mechanism 40 is provided on the front surface 21 a side of the carrier base 21.

  In the tray lock release mechanism 40 described above, the tray lock release member 41 is provided on the upper surface 21e of the carrier base 21 so as to be slidable in the left-right direction along guide block portions 21e7, 21e8 provided in the vicinity of both left and right ends on the front side. The tray lock release member 41 can release the locks of the tray lock mechanism portions 11A (FIG. 2) and 11B (not shown) of the magazines 10A and 10B attached to the left and right sides of the housing 2. . At this time, the tray lock releasing mechanism section 40 includes a locking mechanism for the double-sided disk reversing assembly 120 to the carrier base 21 as described below. It is configured so as to be interlocked with the locking operation.

  Here, in the mechanism for locking the tray lock release mechanism 40 and the double-sided disk reversing assembly 120 to the carrier base 21 shown in an enlarged manner in FIG. 10, the drive source for moving the tray lock release member 41 to the left and right is the carrier base 21. In other words, a motor 43 is attached to the bracket 42, and a worm 44 fixed to the motor shaft of the motor 43 is rotatably mounted with a shaft support member 45 attached to the tip of the motor shaft. It has been. Further, the worm 44 is engaged with a worm wheel 47 that is axially attached to the shaft 46, and a cam wheel gear in which a gear 48 that is integrally formed with the same diameter as the lower part of the worm wheel 47 is attached to the shaft 49. 50 meshes.

  On the upper surface of the cam wheel gear 50, a convex arc-shaped cam portion 50a is formed so as to protrude upward with a smaller diameter than the cam wheel gear portion 50b over approximately 270 °, and the convex arc-shaped cam portion 50a is formed. A pin 51 is implanted on the outer peripheral side of the portion that is not formed.

  Further, a geneva body 52 is provided in the vicinity of the cam wheel gear 50 so as to be swingable from side to side at a slight angle about the shaft 53.

  The above-described Geneva body 52 is integrally formed using a resin material, and a concave arc-shaped cam portion 52a slidably contacting the convex arc-shaped cam portion 50a of the cam wheel gear 50 is formed at approximately 90 ° on one end side of the Geneva body 52. The concave geneva portions 52b and 52c that are formed over the cam wheel gear 50 and intermittently enter and engage with either one of the pins 51 are connected to the left and right ends of the concave arc-shaped cam portion 52a. In addition, an arm portion 52 d is formed on a line passing through the center of the concave arc-shaped cam portion 52 a and the center of the shaft 53 on the other end side through the shaft 53.

  Further, a lock member 54 for locking the double-sided disk reversing assembly 120 is integrally fixed to the upper surface of the Geneva body 52 with a screw or the like using a sheet metal material or the like. A circular arc part 54a for screw fixing is formed, and the center line is the same above the arm part 52d formed in the Geneva body 52 by U-shaped lock pieces 54b and 54c on the left and right sides of the other end side through the shaft 53. Thus, the U-shaped portions are formed so as to face each other in a symmetrical manner.

  When the double-sided disk reversing assembly 120 is lowered, the front-side tray support plate 122 (FIG. 15) is placed on one of the U-shaped lock pieces 54b and 54c formed on the left and right sides of the other end side of the lock member 54 described above. ) Of the double-sided disk reversing assembly lock pieces 122e3 and 122e3 formed above and below the locking hole 21e5 (see FIG. 5) formed in the upper surface 21e of the carrier base 21. Passing through 9) is surely locked.

  Also, a U-shaped hole 52d1 is formed at the tip of the arm portion 52d formed on the other end side of the Geneva body 52, and a pin 56 implanted in the first connecting member 55 that is movable to the left and right is an arm portion 52d. Is fitted in the U-shaped hole 52d1. Further, the second connecting member 57 is integrally attached to the first connecting member 55, and the bent portion 57a formed by bending the upper end of the second connecting member 57 is formed in the recess 41a formed in the tray lock releasing member 41 described above. Is engaged.

  Here, the operation of the tray lock release mechanism 40 and the operation of the mechanism for locking the double-sided disk reversing assembly 120 to the carrier base 21 will be described with reference to FIGS. In FIG. 11, the double-sided disk reversing assembly 120 shows only the double-sided disk reversing assembly locking piece 122e3.

  First, as shown in FIG. 11A, when the tray lock release mechanism 40 and the locking mechanism of the double-sided disk reversing assembly 120 to the carrier base 21 are both in the initial state and start to operate, the double-sided disk reversing assembly. In this state, 120 is positioned at the lowered position on the upper surface 21 e of the carrier base 21. When the motor 43 is started from this state and the cam wheel gear 50 is rotated, for example, counterclockwise around the shaft 49 via the worm 44, the worm wheel 47, and the gear 48, the cam wheel gear 50 is formed on the upper surface. When the concave arc-shaped cam portion 52a formed on one end side of the Geneva body 52 is in sliding contact with the convex arc-shaped cam portion 50a, the Geneva body 52 does not swing around the shaft 53. Therefore, the shaft 53 of the Geneva body 52 The arm portion 52d formed on the other end side via the head remains in the neutral position. At this time, since the lock member 54 integrally fixed to the upper surface of the Geneva body 52 also maintains the neutral position, the front-side tray support plate 122 is interposed between the U-shaped lock pieces 54 b and 54 c formed on the lock member 54. Although the double-sided disk reversing assembly locking piece 122e3 located on the lower side (FIG. 15) enters, this double-sided disk reversing assembly locking piece 122e3 keeps the same state as the initial state without being locked. At this time, since the arm portion 52d of the Geneva body 52 remains in the neutral position, the tray lock releasing member 41 connected to the arm portion 52d via the first and second connecting members 55 and 57 is also left and right. The initial state remains neutral without moving to.

  Thereafter, as shown in FIG. 11 (b), when the gum wheel gear 50 is further rotated counterclockwise about the shaft 49, the pin 51 fixed to the upper surface of the cam wheel gear 50 is on one end side of the Geneva body 52. Since the left Geneva portion 52b of the concave Geneva portions 52b and 52c is formed, the Geneva body 52 swings clockwise around the shaft 53. As the Geneva body 52 swings in the clockwise direction, the lock member 54 secured to the upper surface of the Geneva body 52 also integrally swings in the clockwise direction, so that the U-shaped lock piece 54b formed on the lock member 54 54c, the double-sided disk reversing assembly lock piece 122e3 located on the lower side of the front-side tray support plate 122 (FIG. 15) is engaged with the right-side locking piece 54c. Is securely locked to the carrier base 21. At this time, the arm portion 52d of the Geneva body 52 also swings clockwise, so that the tray lock releasing member 41 connected to the arm portion 52d via the first and second connecting members 55 and 57 is attached to the carrier base 21. It moves to the left from the neutral position along the guide block portions 21e7 and 21e8 provided near the left and right ends on the front side, and unlocks the tray lock mechanism portion 11A (FIG. 2) on the left magazine 10A side.

  11 (a) and 11 (b), the case where the cam wheel gear 50 is rotated counterclockwise around the shaft 49 has been described. However, as shown in FIG. When the wheel gear 50 is rotated clockwise around the shaft 49, the pin 51 fixed to the upper surface of the cam wheel gear 50 enters the right Geneva portion 52c formed on one end side of the Geneva body 52. The double-sided disk reversing assembly locking piece 122e3 is engaged with the left-side locking piece 54b formed on the member 54 so that the double-sided disk reversing assembly 120 is securely locked to the carrier base 21, and the arm portion 52d and The tray lock releasing member 41 connected through the first and second connecting members 55 and 57 moves rightward from the neutral position along the guide block portions 21e7 and 21e8. Unlocks the right magazine 10B side of the tray lock mechanism 11B (not shown).

  As described above, the double-sided disk reversing assembly 120 is integrally fixed to the upper surface of the Geneva body 52 when the tray lock releasing member 41 releases the locks of the left and right magazines 10A, 10B. Since the lock member 54 is securely locked to the carrier base 21, the transfer tray 4A on which the desired double-sided disk 3 is placed is placed on the double-sided disk reversing assembly 120 from the left and right magazines 10A and 10B. The transport tray 4A or the reverse tray 4B on which the desired double-sided disk 3 is placed can be securely mounted in the disk drive unit 180.

  Returning to FIG. 9, the tray pulling mechanism 60 is provided on the back surface 21 d side of the carrier base 21.

  The tray pulling mechanism 60 is provided between the tray stoppers 25A and 25B provided on the left and right side surfaces 21b and 21c of the carrier base 21, and the tray catch 61 is rotated by a motor driving force although not shown. It is provided so as to be movable in the longitudinal direction (left-right direction in the figure) of the transport tray 4A and the reversing tray 4B by a long lead screw. This tray catch 61 is a side surface of either one of the clamp portions 4d and 4d formed on the left side surface of the transfer tray 4A and the reverse tray 4B described with reference to FIG. 3 or the clamp portions 4e and 4e formed on the right side surface. The transfer tray 4A is pulled out to the carrier base 21 side or returned to the left and right magazines 10A and 10B, or the transfer tray 4A or the reverse tray 4B in the carrier base 21 is moved to the disk drive unit 180. The tray 4A or the reversing tray 4B is returned from the disk drive unit 180 to the carrier base 21 side.

  Next, the double-sided disk reversing mechanism 80 provided on the carrier base 21 will be described with reference to FIGS.

FIG. 12 is a perspective view showing an initial state in which the double-sided disk reversing assembly is in the lowered position in the double-sided disk reversing mechanism section with the carrier base removed, and FIG. 13 is a double-sided disk with the carrier base removed. In the reversing mechanism part, a perspective view showing a state where the double-sided disk reversing assembly has reached the raised position,
14 (a) and 14 (b) are enlarged views of the first link member and the slide gear shown in FIGS. 12 and 13, respectively. FIG. 15 is a double-sided disk reversing assembly shown in FIGS. It is a perspective view for demonstrating.

  As shown in FIGS. 12 and 13, the double-sided disk reversing mechanism 80 provided on the carrier base 21 includes a pair of pantograph portions 90 </ b> A and 90 </ b> B crossed in an X shape on the front surface 21 a side and the back surface 21 d side of the carrier base 21. The double-sided disk reversing assembly 120 is reversibly supported on the upper part of the pair of pantograph portions 90A and 90B so as to be opposed to each other and vertically movable (stretchable). When the pantograph portions 90A, 90B reach the raised position from the lowered position on the carrier base 21, the reversing tray 4B and the conveying tray 4A on which the double-sided disk 3 is placed are moved up and down in the double-sided disk reversing assembly 120. The double-sided disk reversing assembly 120 is reversed while being mounted on the disk.

  At this time, the lowered positions of the pair of pantograph portions 90A and 90B take positions close to the upper surface 21e (FIG. 9) of the carrier base 21, while the raised positions of the pair of pantograph portions 90A and 90B The height of the double-sided disk reversing assembly 120 is set at a height that is slightly larger than the radius at which the double-sided disk reversing assembly 120 can rotate with a central portion of a reversing frame 121 described later as a fulcrum.

  First, a pair of pantograph portions 90A and 90B attached to the front surface 21a side and the back surface 21d side of the carrier base 21 so as to be movable up and down (expandable) will be described with reference to FIG. The fulcrum pins 91a and 91a are planted in the horizontal direction on the right side of 21a and the rear surface 21d, and the reduction gear trains (109A to 112A) and (109B to 112B) described later are respectively supported on the inside. A pair of brackets 91 </ b> A and 91 </ b> B are fixed opposite to each other with a gap therebetween. In addition, a pair of second brackets 92A and (92B) each having a long hole 92a and (92a) formed in the horizontal direction on the left upper surface on the front surface 21a side and the rear surface 21d side of the carrier base 21 are opposed to each other with a gap therebetween. It is fixed.

  Further, a first link member 93A and a second link member 94A that are crossed in an X shape are provided on the front surface 21a side of the carrier base 21, and are crossed in an X shape on the back surface 21a side of the carrier base 21. In addition, a first link member 93B and a second link member 94B are provided, both of which are provided in a symmetrical shape using a metal material and facing each other with a gap therebetween.

  The first link members 93A and 93B described above have an arcuate inner tooth portion 93b and a downwardly extending from a substantially central portion of the flat plate portions 93a and 93a as shown in FIG. (93b) and lower missing teeth 93c, (93c) are formed on the inner side, and the outer lower side opposite to the arcuate inner teeth 93b, (93b) and the lower missing teeth 93c, (93c) Spring latching pins 93d and (93d) protrude and are fixed to the part. At this time, the arcuate inner teeth 93b and 93b formed on the first link members 93A and 93B and the lower missing teeth 93c and 93c formed below the first teeth 91A and 91B on the right side are formed. It is formed in the circular arc which can be rotated centering on the fulcrum pins 91a and 91a adhering to.

  Then, the substantially central portion of the flat plate portions 93a and (93a) of the first link members 93A and (93B) and the substantially central portion of the second link members 94A and (94B) are connected by pins 95 and (95). Accordingly, the first link member 93A and the second link member 94A on the front side are crossed and connected in an X shape, and similarly, the first link member 93B and the second link member 94B on the back side are formed in an X shape. Crossed and connected.

  In addition, slide gears 96A and 96B are slidably provided on the arcuate inner teeth 93b and 93b and the lower toothless portions 93c and 93c of the first link members 93A and 93B.

  As shown in an enlarged view in FIG. 14B, the above-described slide gears 96A and (96B) are formed in a substantially arch shape using a resin material, and arch-shaped external teeth portions 96a ( 96a) is formed by shortening the arc length, and arcuate inner teeth 96b, (96b) are formed on the inner peripheral side of the arcuate inner teeth 93b, (93b) of the first link members 93A, (93B). The arcuate guide holes 96c, (96c) and an arcuate shape are formed between the outer peripheral side and the inner peripheral part from the upper side to the lower side. Guide holes 96d and (96d) are respectively formed. The arcuate external teeth 96a and 96a and the arcuate internal teeth 96b and 96b formed on the slide gears 96A and 96B are also the arcuate internal teeth 93b of the first link members 93A and 93B. , (93b), it is formed in an arc that can rotate around fulcrum pins 91a, 91a fixed to the first brackets 91A, 91B on the right side.

Then, the arch-shaped inner teeth portions 96b and (96b) of the slide gears 96A and (96B) are positioned so as to overlap with the arch-shaped inner teeth portions 93b and (93b) of the first link members 93A and (93B). The pins 95, (95) and the pins 97, 97 attached on the arch-shaped inner teeth 93b, (93b) of the first link members 93A, 93B are connected to the arch-shaped guides of the slide gears 96A, 96B. The holes 96c and (96c) are fitted in the arcuate guide holes 96d and 96d. Further, the spring latch pins 96e, 96e fixed to the vicinity of the arch-shaped external teeth 96a, 96a of the slide gears 96A, 96B, and the arch-shaped inside of the first link members 93A, 93B. The tension springs 98A and (98B) are hung between the spring retaining pins 93d and (93d) fixed to the lower portions of the tooth portions 93b and (93b). The tension springs 98A and (98B) are slid. The gears 96A and (96B) are biased so as to move below the arcuate inner teeth 93b and (93b) of the first link members 93A and (93B).
At this time, the pins 95, (95) and the pins 97, 97 are biased by the tension springs 98A, 98B and the upper ends of the arcuate guide holes 96c, 96c and the arcuate guide holes 96d, 96d. The arcuate inner teeth 93b and 93b of the first link members 93A and 93B and the arcuate inner teeth 96b and 96b of the slide gears 96A and 96B are attached so as to be in phase with each other in contact with the upper ends. Yes. The front side slide gear 96A is attached to the outside of the first link member 93A, while the back side slide gear 96B is attached to the inside of the first link member 93B.

  Further, according to the above configuration, the slide gears 96A and 96B move integrally with the arcuate inner teeth 93b and 93b of the first link members 93A and 93B, and slide with the arcuate inner teeth 93b and 93b. These two modes correspond to the two modes when the child turtle (slide gear) is placed on the back of the parent turtle (first link member).

  And the fulcrum pins 91a and 91a planted in the first brackets 91A and 91B on the right side are fitted into the holes drilled in the lower ends of the flat plate portions 93a and 93a of the first link members 93A and 93B. 93A and 93B can turn around fulcrum pins 91a and 91a.

  Also, the pins 94a and (94a) planted at the lower ends of the second link members 94A and 94B slide in the left and right directions in the long holes 92a and (92a) formed in the second brackets 92A and (92B) on the left side. Fits freely.

  Further, a front horizontal support plate 99A supported substantially horizontally is provided above the first and second link members 93A and 94A on the front side and the first and second link members 93B and 94B on the back side. And a pair of horizontal support plates 99B on the back side are formed in a substantially symmetrical shape so as to face each other. Further, pins 93e and (93e) implanted at the upper ends of the flat plate portions 93a and 93a of the first link members 93A and 93B are inserted into the long holes 99a and 99a formed horizontally on the left end side of the horizontal support plates 99A and 99B. It is slidably fitted in the left-right direction.

  Further, fulcrum pins 99b, (99b) drilled on the right end side of the horizontal support plates 99A, 99B are fitted into holes drilled in the upper ends of the second link members 94A, 94B, and the second link members 94A, 94B are The fulcrum pins 99b and (99b) can be turned around.

  A double-sided disk reversing assembly 120 described later is supported in a reversible manner between horizontal support plates 99A and 99B constituting a part of the pair of pantograph portions 90A and 90B.

  Next, the drive unit 100 of the double-sided disk reversal drive mechanism 80 will be described. A double-sided disk reversing motor 102 is attached to the bracket 101 fixed to the back surface side of the carrier base 21. A sensor gear 103 is fixed to the shaft 102. The sensor gear 103 is integrally formed of a small diameter gear part and a large diameter sensor disk part. Then, a plurality of slits provided along the circumference of the large-diameter sensor disk portion of the sensor gear 103 are detected by the photosensor 104 attached to the bracket 101, thereby generating a rotation pulse of the double-sided disk reversing motor 102. Yes. The small-diameter gear portion of the sensor gear 103 is engaged with the large-diameter gear portion of the two-stage gear 105 attached to the bracket 101.

  Further, a long shaft 106 is rotatably mounted on the back surface side of the carrier base 21 between the front surface 21a and the back surface 21d of the carrier base 21, and a gear 107 fixed to an intermediate portion of the shaft 106 is attached to the bracket. A small-diameter gear portion of a two-stage gear 105 attached to 101 is engaged.

  A pair of gears 108A and 108B are fixed to both end portions of the shaft 106.

  On the other hand, as described above, the first brackets 91A and 91B are attached to the carrier base 21 on the front surface 21a side and the rear surface 21d side so as to be opposed to each other with a space therebetween, and inside the first brackets 91A and 91B. The gear trains for reduction composed of a plurality of gears (109A to 112A) and (109B to 112B) are attached to face each other.

  A pair of gears 108A and 108B fixed to both end portions of the shaft 106 are always meshed with the first two-stage gears 109A and 109B in the reduction gear train in phase. In the initial state, the small-diameter gear portions 112a and 112a of the final two-stage gears 112A and 112B in the reduction gear trains (109A to 112A) and (109B to 112B) are bows of the first link members 93A and 93B. The upper part of the internal teeth 93b and 93b of the shape and the upper part of the internal teeth 96b and 96b of the slide gears 96A and 96B overlapped in phase with the internal teeth 93b and 93b of the arch are engaged. .

  In the drive unit 100, when the double-sided disk reversing assembly 120 is reversed with the pair of pantographs 90A and 90B in the raised position, the driving force of the double-sided disk reversing motor 102 is applied to the back side tray support plate. The two-stage gear 130 provided on the 123-side and the reversing gear 127 meshed with the two-stage gear 130 are finally transmitted, and the front-side tray support plate 122 side has the double-sided disk reversing assembly 120 attached thereto. It just supports it to be reversed.

  Next, as shown in FIG. 15, the above-described double-sided disk reversing assembly 120 has a rigid structure in which the rectangular reversing frame 121 serving as a base is largely hollowed out using an aluminum material or the like. Is formed. Further, the front surface 121a, the left and right side surfaces 121b and 121c, and the back surface 121d of the rectangular inversion frame 121 correspond to the front surface 21a, the left and right side surfaces 21b and 21c, and the back surface 21d of the carrier base 21, respectively.

  Further, a front side tray support plate 122 and a back side tray support plate 123 are integrally attached to the front surface 121a side and the back surface 121d side of the reversal frame 121, respectively.

  On the above-described front side tray support plate 122, U-shaped tray guide grooves 122a and 122b are formed along the longitudinal direction of the transport tray 4A and the reversing tray 4B with a slight gap between the bottom and the top. ing. At this time, the tray insertion / removal ports of the tray guide grooves 122a and 122b are formed on the left and right.

  On the other hand, the back side tray support plate 123 also has U-shaped tray guide grooves 123a and 123b that are spaced slightly apart from each other along the longitudinal direction of the transport tray 4A and the reverse tray 4B. Is formed. At this time, tray insertion / removal openings for the tray guide grooves 123a and 123b are also formed on the left and right sides.

  The tray guide groove 122a of the front side tray support plate 122 and the tray guide groove 123a of the back side tray support plate 123 are opposed to each other with a gap therebetween, and both sides of the tray guide grooves 122a and 123a are formed from the magazine 10 on both sides. The transport tray 4A that is pulled out with the disk 3 placed thereon is detachably mounted. In the initial state, the transport tray 4A is not mounted in the tray guide grooves 122a and 123a. In addition, when not installed, the tray guide grooves 122a and 123a always stand by at the lower position.

  In addition, the tray guide groove 122b of the front side tray support plate 122 and the tray guide groove 123b of the back side tray support plate 123 are opposed to each other with a space therebetween, and the tray 4B for reversal is disposed in the tray guide grooves 122b and 123b. Is mounted in advance so that the mounting surface of the double-sided disk 3 faces downward, and when the double-sided disk 3 is reversed, the double-sided disk 3 on the reversing tray 4B is attached to the disk drive unit 180 so that it can be pulled out. The reversing tray 4B is always mounted at the upper position in the initial state. At this time, the reversing tray 4B is normally attached to the tray guide grooves 122b and 123b except when the reversing tray 4B is pulled out to the disk drive unit 180 side. If the number of reversals of the double-sided disk reversing assembly 120 or the number of withdrawals of the reversing tray 4B to the disk / drive unit 180 exceeds a predetermined number of times in consideration, The tray 4A or the reversing tray 4B accommodated in the spare can be exchanged.

  In addition, positioning projections 122c1 and 122d1 are formed to project from the left and right ends of the upper and lower surfaces 122c and 122d of the front side tray support plate 122, and similarly, positioning projections 123c1 to the left and right ends of the upper and lower surfaces 123c and 123d of the back side tray support plate 123. 123d1 projectingly formed, and as described above, the pair of positioning projections (122c1, 123c1) or (122d1, 123d1) positioned on the lower side when the double-sided disk reversing assembly 120 reaches the lowered position is the carrier base. It fits into a positioning hole 21e1 (FIG. 9) formed in the upper surface 21e of the 21.

  Further, support shafts 124 and 125 are fixed to the central portion of the front side tray support plate 122 and the central portion of the back side tray support plate 123, respectively, and these support shafts 124 and 125 are the horizontal support plate 99A on the front side. The reversing frame 121 is attached to the horizontal support plate 99B on the back side and is attached to the front side tray support plate 122 and the back side tray support plate 123 so as to be reversible around the support shafts 124 and 125. ing.

  Further, a reversing gear 127 that cooperates with the one-way clutch 126 fitted in the center portion is rotatable between the rear horizontal support plate 99B and the rear tray support plate 123 about the support shaft 125. Is provided. In this embodiment, the one-way clutch 126 is fitted into the reversing gear 127, and the one-way clutch 126 can be fitted into the two-stage gear 130 described below. The function of the one-way clutch 126 fitted into the center portion of the reversing gear 127 described above is when the pair of pantograph portions 90A and 90B are raised and the double-sided disk reversing assembly 120 is reversed at the raised position, as will be described later. The reversing gear 127 is set in a direction in which the reversing gear 127 can rotate integrally with the support shaft 125 so that the driving force at the time of reversing by the reversing motor 102 (FIG. 13) can be transmitted. The reversing gear 127 is idled with respect to the support shaft 125 when lowering. Therefore, the one-way clutch 126 can rotate the reversing gear 127 and the reversing frame 121 to which the rear side tray support plate 123 is attached via the support shaft 125, and only the reversing gear 127. The mode which can rotate on the support shaft 125 can be taken.

  Further, a bracket 129 having a shaft 128 fixed thereto is attached below the support shaft 125 supported by the horizontal support plate 99B on the back side, and a large-diameter gear portion 130a and a small-diameter gear portion 130b are integrally formed on the shaft 128. The two-stage gear 130 is mounted on the shaft, the large-diameter gear portion 130a of the two-stage gear 130 is engaged with the lower portion of the reversing gear 127, and the small-diameter gear portion 130b of the two-stage gear 130 is described above. The drive unit 100 (FIG. 13) is configured to mesh with an arcuate external tooth portion 96a of a slide gear 96B on the back side that constitutes a part of the drive portion 100 (FIG. 13).

In addition, positioning pieces 123e and 123f are formed on the outer surface of the back side tray support plate 123 so as to protrude from the left and right sides around the support shaft 125 with different heights. The positioning pieces 123e and 123f are horizontally positioned on the back side. A tip end portion of a pin 93e that is slidably fitted in a long hole 99a formed in the support plate 99B comes in contact with and separates from.
In the state where the tip of the pin 93e is in contact with the back surface of the positioning piece 123e, the reversal frame 121 is maintained in a substantially horizontal state, and then the reversal frame 121 is reversed about the support shafts 124 and 125. Thus, in a state where the tip of the pin 93e is in contact with the upper surface of the positioning piece 123f, the reversal frame body 121 is kept inclined at a slight angle with respect to the horizontal state.

  Further, two positioning recesses (not shown) are formed at predetermined positions on the outer surface of the reversing gear 127 pivotally supported on the back side tray support plate 123 via the support shaft 125. Correspondingly, a pin 133 biased by a compression spring 132 inserted into the cylindrical body 131 is provided on the back side horizontal support plate 99B so as to be able to protrude and retract toward the outer surface of the reversing gear 127. The operation in which the pin 133 engages with the positioning recess (not shown) formed on the outer surface of the reverse gear 127 is interlocked with the positioning operation of the positioning pieces 123d and 123f of the back side tray support plate 123 and the pin 93e. is doing.

  Next, the pair of disc chucking mechanism portions 150 and 150 attached substantially vertically above and below the front-side tray support plate 122 are substantially inside the escape holes 121e that are largely cut out from the inside of the rectangular inversion frame 121. It extends to the central part. The pair of disc chucking mechanism portions 150 and 150 are a pair of lever means (151 and 157) and (151 and 157) attached to the upper and lower sides of the front side tray support plate 122 so as to be openable and closable as described below. A pair of disc chucking members 161 and 161 are arranged opposite to each other at the front end of the disc, and the pair of disc chucking members 161 and 161 are disposed in the center hole 3c of the double-sided disc 3 on the transport tray 4A or the reversing tray 4B. Is facing.

  The pair of disk chucking mechanisms 150 and 150 are used for reversing the upper and lower stages in the double-sided disk reversing assembly 120 supported so as to be reversible between the front side tray support plate 122 and the back side tray support plate 123. When the tray 4B and the transfer tray 4A on which the double-sided disk 3 is placed are mounted and the double-sided disk reversal assembly 120 is reversed at the raised position by the pair of pantograph portions 90A and 90B as will be described later, The center hole is used to hold the A side and B side of the double-sided disc 3 with a pair of disc chucking members 161 and 161.

  Here, the pair of disc chucking mechanism portions 150 and 150 are all symmetrical except for the concave and convex shape at the center of the pair of disc chucking members 161 and 161. The lower disk chucking mechanism 150 will also be described as necessary.

  The upper disk chucking mechanism 150 described above will be described. A concave recess 122e that is one step lower than the upper surface 122c is formed in the middle of the upper surface 122c of the front side tray support plate 122, and the upper side of the recess 122e. The first lever 151 is rotatably provided. At this time, the first lever 151 is rotated in the vertical direction via the shafts 153 and (153) to the first lever support blocks 152 and 152 mounted on the concave portion 122e of the front side tray support plate 122 with a space left and right. It is supported freely.

  The first lever 151 described above is integrally formed by bending a sheet metal material, and a wing portion 151b bent one step lower from the flat portion 151a extends toward the center of the reversal frame 121. Further, in the escape hole 151a1 formed in the flat portion 151a of the first lever 151, two tray type detection pieces 122e1 and 122e2 integrally formed on the concave portion 122e of the front side tray support plate 122 and one double-sided surface are provided. A disk reversing assembly locking piece 122e3 faces.

  At this time, the two tray type detection pieces 122e1 and 122e2 are different in the presence / absence state of the detection holes formed here on the upper side and the lower side of the front side tray support plate 122. When the tray reaches the lowered position on the carrier base 21, the two tray type detection pieces 122e1 and 122e2 positioned on the lower side face the tray type detection holes 21e2 and 21e3 (FIG. 9) formed in the upper surface 21e of the carrier base 21. It is out.

  On the other hand, one double-sided disk reversing assembly locking piece 122e3 formed in the concave portion 122e of the front side tray support plate 122 projects from the front side tray support plate 122 in the center in the width direction. As described above, the double-sided disk reversing assembly lock piece 122e3 is formed in the upper surface 21e of the carrier base 21 by the double-sided disk reversing assembly locking piece 122e3 positioned on the lower side when the double-sided disk reversing assembly 120 is lowered. It faces the locked hole 21e5 (FIG. 9).

  Further, on the left and right sides of the back surface side of the wing portion 151b of the first lever 151, positioning pins 151b1 that fit into positioning round holes 4a2 and 4a2 (FIG. 3) formed on the left and right sides of the transport tray 4A and the reverse tray 4B. , 151b1 are planted.

  In addition, a stopper 154 that regulates the rotational posture of the second lever 157 described below is attached to a stopper support block 155 (155) attached to the center portion on the wing portion 151b of the first lever 151 with a spacing left and right. A shaft 156 is provided so as to be rotatable in the vertical direction.

  Further, a second lever 157 to which the disk chucking member 161 is fixed is supported at the center tip portion on the wing portion 151b of the first lever 151 so as to be rotatable in the vertical direction. The second lever 157 is connected to the second lever support blocks 158 and 158, which are attached to the left and right of the central tip portion on the wing portion 151b of the first lever 151 with a space between them. The king members 161 and 161 are rotatably supported while being urged in a direction approaching each other.

  Further, as shown in FIG. 20B, the disc chucking member 161 fixed to the tip portion of the second lever 157 has a cylindrical portion 161a having a tapered tip that fits into the center hole 3c of the double-sided disc 3. And a disk mounting portion 161b provided evenly at three locations along the circumference in order to come into contact with the inner peripheral portion of the A surface 3a or the B surface 3b of the double-sided disc 3, and is integrally formed of a resin material. At this time, the disc chucking members 161 and 161 fixed to the upper and lower second levers 157 and 157 have a convex portion 161a1 protruding from the central portion of one cylindrical portion 161a and a concave portion in the central portion of the other cylindrical portion 161a. A hole 161a2 is formed, and when the double-sided disk 3 is chucked by the upper and lower disk chucking members 161 and 161, the convex part 161a1 of one cylindrical part 161a and the concave hole part 161a2 of the other cylindrical part 161a are formed. By fitting, the double-sided disk 3 is prevented from coming off from the disk chucking members 161 and 161.

  In addition, a first link lever 162 is rotatably provided around the support shaft 124 at the central portion of the outer side surface 122f of the front side tray support plate 122. As shown in FIG. 20A, the first link lever 162 described above has a pair of long first arm portions 162a and 162b that are symmetrically formed vertically and horizontally about the support shaft 124, and a pair of first arms. A pair of short second arm portions 162c and 162d are formed between the arm portions 162a and 162b symmetrically about the support shaft 124 in the vertical and horizontal directions.

  In addition, second link levers 164A and 164B formed in a square shape symmetrically with respect to the support shaft 124 on the left and right sides of the support shaft 124 on the outer surface 122f of the front tray support plate 122 are formed on the outer surface. A pair of shafts 165 and 165 fixed to 122f are provided to be rotatable.

  Further, the rear end portion of the flat portion 151a of the first levers 151 and 151 provided so as to be rotatable up and down on the front side tray support plate 122 protrudes toward the horizontal support plate 99A on the front side. A pair of L-shaped pieces 163A and 163B are attached to the rear end portion of the flat portion 151a of the levers 151 and 151 symmetrically with respect to the support shaft 124 in the vertical and horizontal directions.

  The first arm portions 162a and 162b of the first link lever 162 are engaged with the L-shaped pieces 163A and 163B attached to the rear end portions of the upper and lower first levers 151 and 151, respectively. At this time, one end and the other end of the torsion spring 167 fitted on the support shaft 124 between the front side tray support plate 122 and the first link lever 162 are hooked on the front side tray support plate 122 and the first link lever 162, respectively. The torsion spring 167 biases the wings 151b and 151b through the shafts 153 and 153 serving as pivotal fulcrum of the upper and lower first levers 151 and 151 in a closing direction.

  Further, the distal end portions of the second arm portions 162c and 162d of the first link lever 162 are engaged with the one end portions 164a and 164a of the second link levers 164A and 164B and the other end portion via the shafts 165 and 165. Rollers 166A and 166B are rotatably fixed to 164b and 164b, and these rollers 166A and 166B can freely come into contact with and separate from a cam piece 21e4 formed to protrude from the upper surface 21e of the carrier base 21.

  Next, the operation of moving the double-sided disk reversing assembly 120 up and down on the carrier base 21 and reversing the double-sided disk reversing assembly 120 in the raised position will be described with reference to FIGS. 13 and 16 to 19 described above. And will be described.

FIG. 16 is a diagram showing an initial state in which a pair of pantograph portions are contracted and the double-sided disk reversing assembly reaches a lowered position on the carrier base;
FIG. 17 is a diagram showing a state in which a pair of pantograph portions are extended and the double-sided disk reversing assembly reaches the raised position on the carrier base;
FIG. 18 is a diagram showing a state where the double-sided disk reversing assembly has started reversing at the raised position, and FIG. 19 is a diagram showing a state where the double-sided disk reversing assembly has been reversed at the raised position.

  First, as shown in FIG. 16, when the driving unit 100 is in the initial state, the lower ends of the first link members 93A and 93B are connected to the first bracket 91A on the right side on the front surface 21a side and the rear surface 21d side of the carrier base 21. With the fulcrum pins 91a and 91a fixed to 91B as fulcrums, the pins 93e and 93e planted at the upper ends of the first link members 93A and 93B move to the left end in the long holes 99a and 99a formed in the horizontal support plates 99A and 99B. In addition, pins 94a and 94a implanted at the lower ends of the second link members 94A and 94B with the fulcrum pins 99b and 99b fixed to the horizontal support plates 99A and 99B at the upper ends of the second link members 94A and 94B, respectively. Since it has moved to the left end in the long holes 92a and 92a formed in the second brackets 92A and 92B on the left side, the first link members 93A and 93B A pair of pantograph portions 90A and 90B obtained by crossing the two link members 94A and 94B in an X shape via pins 95 and 95 are in a contracted state, and the front horizontal support plate 99A and the rear horizontal support plate The double-sided disk reversing assembly 120 supported so as to be reversible with respect to 99B is positioned in a substantially horizontal state on the upper surface 21e of the carrier base 21 and reaches a lowered position. In the lowered position, the reversing tray 4B is mounted in the upper position in the double-sided disk reversing assembly 120, and the transport tray 4A placed with the A-side 3a of the desired double-sided disk 3 facing up is in the lower position. It is attached to.

  Further, the arcuate inner teeth 96b, 96b of the slide gears 96A, 96B are lowered by the tension springs 98A, 98B on the arcuate inner teeth 93b, 93b and the lower missing teeth 93c, 93c of the first link members 93A, 93B. Of the reduction gear trains (109A to 112A) and (109B to 112B) for transmitting the driving force from the reversing motor 102 of the driving unit 100 in the state of being biased by the two-stage gear 112A, The small-diameter gear portions 112a and 112a of 112B shift the phase to the upper portion of the arcuate inner teeth portions 93b and 93b of the first link members 93A and 93B and the upper portion of the arcuate inner teeth portions 96b and 96b of the slide gears 96A and 96B. Meshed together. At this time, the arch-shaped external tooth portion 96a of the slide gear 96B on the back side is separated from the small-diameter gear portion 130b of the two-stage gear 130 provided on the horizontal support plate 99B on the back side.

  Next, as shown in FIGS. 13 and 17, the reversing motor 102 is started from the initial state described above, and the last two stages of the reduction gear trains (109A to 112A) and (109B to 112B). When the small-diameter gear portions 112a and 112a of the gears 112A and 112B are rotated in the clockwise direction shown in the figure, the arc-shaped inner teeth portions 93b and 93b and the slide gears of the first link members 93A and 93B meshed with the small-diameter gear portions 112a and 112a. The arch-shaped inner teeth portions 96b and 96b of 96A and 96B are integrally rotated around the fulcrum pins 91a and 91a fixed to the right first brackets 91A and 91B to move upward. Along with this, the pins 93e and 93e implanted at the upper ends of the first link members 93A and 93B move to the right end side in the long holes 99a and 99a formed in the horizontal support plates 99A and 99B, and the second link. Since the pins 94a and 94a implanted in the lower ends of the members 94A and 94B move to the right end side in the long holes 92a and 92a formed in the second brackets 92A and 92B on the left side, the pair of pantograph portions 90A and 90B are extended. The double-sided disk reversing assembly 120 supported in a reversible manner between the front horizontal support plate 99A and the rear horizontal support plate 99B reaches the raised position on the upper surface 21e of the carrier base 21.

  Here, when the pair of pantograph portions 90A and 90B are in the extended state and the double-sided disk reversing assembly 120 reaches the raised position, the small-diameter gear portions 112a and 112a of the two-stage gears 112A and 112B are used as the first link member. Since it reaches the lower toothless portions 93c and 93c formed below the arcuate inner teeth portions 93b and 93b of 93A and 93B, the first link members 93A and 93B stop rotating and the pair of pantograph portions 90A and 90B also rise. Stop at position. On the other hand, the arcuate inner teeth 96b, 96b of the slide gears 96A, 96B are formed to have a longer arc length by extending below the arcuate inner teeth 93b, 93b of the first link members 93A, 93B. Therefore, the small-diameter gear portions 112a and 112a of the two-stage gears 112A and 112B remain engaged. Here again, the arcuate external tooth portion 96a of the slide gear 96B on the back side is separated from the small-diameter gear portion 130b of the two-stage gear 130 provided on the horizontal support plate 99B on the back side. Further, at this raised position, the tip of the pin 93e moved to the right end side in the elongated hole 99a formed in the horizontal support plate 99B on the back side is formed on the lower surface of the positioning piece 123e formed on the outer side surface of the back side tray support plate 123. The double-sided disk reversing assembly 120 assumes a substantially horizontal posture because the part enters and abuts.

Next, as shown in FIGS. 13 and 18, when the small-diameter gear portions 112a and 112a of the two-stage gears 112A and 112B are further rotated in the clockwise direction in the drawing, the slide gear 96A meshed with the small-diameter gear portions 112a and 112a. , 96B only the bow-shaped inner teeth 96b, 96b of the first link members 93A, 93B are stopped while being guided by the pins 95, 97 fitted in the bow-shaped guide holes 96c, 96d, respectively. 93b and the lower missing tooth portion 93c are further rotated clockwise to move upward against the urging force of the tension springs 98A and 98B. As a result, the arch-shaped external tooth portion 96a formed on the back-side slide gear 96B meshes with the small-diameter gear portion 130b of the two-step gear 130 provided on the back-side horizontal support plate 99B. The reversing gear 127 that rotates counterclockwise and meshes with the upper part of the large-diameter gear portion 130a of the two-stage gear 130 rotates about the support shaft 125 in the clockwise direction shown in the figure, so that the front side is supported horizontally. The double-sided disk reversing assembly 120 supported in a reversible manner between the plate 99A and the horizontal support plate 99B on the back side also rotates in the clockwise direction shown in the figure and starts reversing.
At this time, since the one-way clutch 126 is fitted in the center of the reversing gear 127 as described above, when the double-sided disk reversing assembly 120 is reversed, the one-way clutch 126 is integrated with the support shaft 125. The reversing gear 127 that operates can rotate, and the driving force at the time of reversing by the reversing motor 102 is transmitted to the reversing gear 127.

  At this time, since the front-side horizontal support plate 99A is not provided with the two-stage gear and the reversing gear, the front-side slide gear 96A only moves up on the first link member 93A.

  Next, as shown in FIGS. 13 and 19, when the small-diameter gear portions 112a and 112a of the two-stage gears 112A and 112B are further rotated clockwise from the state shown in FIG. 18, the small-diameter gear portions 112a, Only the arcuate inner teeth 96b, 96b of the slide gears 96A, 96B meshed with 112a rotate further on the stopped first link members 93A, 93B in the clockwise direction to resist the biasing force of the tension springs 98A, 98B. As a result, the tension springs 98A and 98B are extended to store the urging force, and the double-sided disk reversing assembly 120 is further centered around the support shaft 125 via the two-stage gear 130 and the reversing gear 127. Rotating clockwise as shown, the double-sided disk reversing assembly 120 is reversed. Here, on the upper surface of the positioning piece 123f formed on the outer side surface of the back side tray support plate 123, the tip portion of the pin 93e moving to the right end side in the long hole 99a formed in the back side horizontal support plate 99B is provided. Since it abuts from above, the double-sided disk reversing assembly 120 is kept tilted at a slight angle as shown in the figure with respect to the horizontal state. In this state, the reversal of the double-sided disk reversal assembly 120 is completed, and the reversing motor 102 stops driving during reversal. At this time, the reason why the double-sided disk reversal assembly 120 is slightly inclined at the reversal completion position is that the pin 93e is brought into contact with the positioning piece 123f at the height position of the pin 93e.

  In this reversal completion state, the reversing tray 4B is changed to the lower position in the double-sided disc reversing assembly 120, and the desired double-sided disc 3 is placed on the reversing tray 4B with the B-side 3b facing up. The On the other hand, the transfer tray 4A is changed to the upper position.

  Next, in order to lower the double-sided disk reversing assembly 120 to the lowered position from the reversal completion state of FIG. The urging force of the tension springs 98A and 98B stored when the reversal is completed is returned to the ascending position regardless of the driving force during the reversal of 102. That is, while the slide gears 96A and 96B move downward on the first link members 93A and 93B that are stopped by the urging force of the tension springs 98A and 98B, the arcuate inner teeth 96b and 96b of the slide gears 96A and 96B The link members 93A and 93B return to a position integrated with the arcuate inner teeth 93b and 93b, and return to the raised position where the pair of pantograph portions 90A and 90B are raised.

  Here, when the slide gears 96 </ b> A and 96 </ b> B are moved downward by a spring force, the two-stage gear 130 meshed with the arch-shaped external tooth portion 96 a of the slide gear 96 </ b> B on the back side and the reverse gear 127 meshed with the two-stage gear 130. Both of them rotate in reverse with respect to the rotating direction at the time of reversing, but only the reversing gear 127 rotates idly with respect to the support shaft 125 due to the action of the one-way clutch 126 fitted in the reversing gear 127. The disk reversing assembly 120 remains in the reversed state without being reversed.

  When the arcuate inner teeth 96b and 96b of the slide gears 96A and 96B and the arcuate inner teeth 93b and 93b of the first link members 93A and 93B return to the integrated position, the inversion motor 102 is inverted. Since the rotation direction is reversed with respect to the current rotational direction, the pair of pan tag portions 90A and 90B return to the initial state shown in FIG. Therefore, when the double-sided disk reversing assembly 120 completes reversal at the raised position and returns to the lowered position on the upper surface 21e of the carrier base 21, it becomes the same height as the initial position before reversal.

  Thereafter, the desired double-sided disk 3 placed on the reversing tray 4B is conveyed to the disk drive unit 180 by the double-sided disk reversal / carrier unit 20, and the desired double-sided disk 3 is transferred to the B surface 3b in the disk drive unit 180. When recording and / or reproduction is completed and the desired double-sided disk 3 is returned to the double-sided disk inversion / carrier unit 20 together with the inversion tray 4B, the desired double-sided disk 3 in the double-sided disk inversion / carrier unit 20 Is reversed and is placed on the transfer tray 4A with the A-side 3a of the desired double-sided disk 3 up, and then recovered to the original position in the magazine 10 so that the magazine 10 Inside, the management of the A side and the B side of the double-sided disk 3 can be omitted.

  According to the disk / reversing mechanism 80 described above, a pair of first link members 93A, 93B and second link members 94A, 94A crossed in an X shape on the front surface 21a side and the back surface 21d side of the carrier base 21. When the pantograph portions 90A and 90B are provided so as to be movable up and down, and the double-sided disk reversing assembly 120 is reversibly supported by a pair of horizontal support plates 99A and 99B constituting a part of the pair of pantograph portions 90A and 90B. The pair of pantograph sections 90A and 90B can be smoothly moved up and down, and the drive source (motor) for reversing to the double-sided disk reversing assembly 120 is not attached to the double-sided disk reversing assembly 120. The double-sided disk reversing assembly 120 side is wireless because there is no routing of wiring to the drive source (motor). With inverted load during the double-sided disk reversing assembly 120 is reduced because the inversion assembly 120 can be configured to light, it is possible to improve the quality and reliability of the apparatus 1.

  Next, the operation of the pair of disk chucking mechanism portions 150, 150 attached substantially vertically above and below the front-side tray support plate 122 of the double-sided disk reversing assembly 120 will be described with reference to FIGS. And will be described.

20 (a) and 20 (b) are a front view and a side view showing a state in which a pair of disk chucking mechanism portions has reached an initial state,
FIGS. 21A and 21B are a front view and a side view showing a state in which a pair of disk chucking mechanism portions have reached a disk chucking state.

  When the double-sided disk reversing assembly 120 that is reversibly supported on the upper part of the pair of pantograph portions 90A and 90B is positioned at the lowered position on the carrier base 21, FIGS. 15 and 20 (a) and 20 (b). As shown in FIG. 2, the pair of disk chucking mechanisms 150, 150 attached substantially vertically above and below the front-side tray support plate 122 of the double-sided disk reversing assembly 120 are expanded vertically and are in an initial state.

  That is, the first arm portions 162a and 162b of the first link lever 162 provided on the outer side surface 122f of the front side tray support plate 122 are L attached to the rear end portions of the flat portions 151a of the upper and lower first levers 151 and 151. The first and second first levers 151 and 151 are engaged with the character pieces 163A and 163B, and the wing portions 151b and 151 side of the upper and lower first levers 151 and 151 are urged in a closing direction by a torsion spring 167 fitted into the support shaft 124. The shaft 165 of the second link lever 164A on the left side is in a state where the distal end portions of the second arm portions 162c and 162d of the link lever 162 are engaged with the one end portions 164a and 164a of the second link levers 164A and 164B. A roller 166A fixed to the other end via the bottom of the cam piece 21e4 formed on the upper surface 21e of the carrier base 21. Since the wide portion in contact with the second link lever 164A of the left side is rotated counterclockwise in the drawing about the shaft 165. Accordingly, the first link lever 162 engaged with the second link lever 164A on the left side rotates in the clockwise direction shown in the figure around the support shaft 124 against the urging force of the torsion spring 167, so that the first link lever The wings 151b and 151b side of the upper and lower first levers 151 and 151 engaged with 162 are in an open state. Further, the second levers 157 and 157 rotatably supported through the shafts 159 and 159 at the tip portions of the wing portions 151b and 151b of the upper and lower first levers 151 and 151 are mutually closed by the torsion springs 160 and 160. Although biased, the second levers 157 and 157 are opened against the torsion springs 160 and 160 by the stoppers 154 and 154 attached to the wings 151b and 151b of the first levers 151 and 151. Accordingly, since the upper and lower disc chucking members 161 and 161 fixed to each other at the tips of the second levers 157 and 157 are separated from each other, the upper and lower disc chucking members 161 and 161 are not shown here. In this state, the sheet is retracted from the center hole 3c of the double-sided disk 3 on the tray 4A or the reversing tray 4B.

  Next, as the double-sided disk reversing assembly 120 supported in a reversible manner on the upper part of the pair of pantograph portions 90A and 90B moves upward from the lowered position to the raised position on the carrier base 21, FIGS. As shown in b), the roller 166A fixed to the other end of the second link lever 164A on the left side protrudes from the lower wide portion of the cam piece 21e4 formed on the upper surface 21e of the carrier base 21 to the tapered upper narrow portion. Since the second link lever 164A rotates clockwise around the shaft 165, the second link lever 164A rotates in the clockwise direction. Along with this, the first link lever 162 engaged with the second link lever 164A on the left side is rotated counterclockwise in the figure around the support shaft 124 by the biasing force of the torsion spring 167, so that the first link lever 162 The wing portions 151b and 151b of the upper and lower first levers 151 and 151 engaged with each other are in a closed state. Furthermore, the second levers 157 and 157 supported by the tip portions of the wings 151b and 151b of the upper and lower first levers 151 and 151 through the shafts 159 and 159 are pivoted to each other by the biasing force of the torsion springs 160 and 160. The tapered cylindrical portions 161a and 161a of the upper and lower disc chucking members 161 and 161 fixed to the tips of the second levers 157 and 157 enter the center hole 3c of the double-sided disc 3 from above and below. The convex part 161a1 formed in the central part of the cylindrical parts 161a and 161a and the concave hole part 161a2 are fitted. The double-sided disk 3 is held (chucked) without coming off the upper and lower disk chucking members 161 and 161, and the double-sided disk 3 is placed on the disk mounting portion 161b of the lower disk chucking member 161 by gravity. Placed on. At this time, the positioning pins 151b1 and 151b1 planted on the back surfaces of the wings 151b and 151b of the upper and lower first levers 151 and 151 have positioning round holes 4a2 and 4a2 formed in the transport tray 4A or the reversing tray 4B ( 3), the transport tray 4A or the reversing tray 4B is prevented from slipping out of the tray guide grooves (122a, 123a) and (122b, 123b) formed in the reversing frame 121 during reversal. it can.

  Thereafter, the double-sided disk reversing assembly 120 is further moved upward, and the roller 166A fixed to the other end of the left second link lever 164A is separated from the cam piece 21e4 formed to protrude from the upper surface 21e of the carrier base 21. Even when the double-sided disk reversing assembly 120 reaches the raised position, the double-sided disk 3 remains held by the upper and lower disk chucking members 161 and 161. The double-sided disk 3 can be reliably reversed without coming out of the upper and lower disk chucking members 161, 161, and the upper and lower disk chucking members 161, 161 are inserted into the center hole 3 c of the double-sided disk 3 when the double-sided disk reversal assembly 120 is reversed. 161 enters at least one, and the movement of the double-sided disk 3 in the radial direction is restricted. Therefore, since the double-sided disk 3 does not dance in the space formed between the trays 4A and 4B due to the gravity applied at the time of reversal, the signal surface of the double-sided disk 3 is not damaged and the reliability at the time of reversal can be improved. .

  As described above, the disk chucking mechanism 150, 150 closes the pair of lever means (151, 157) provided on the upper and lower sides of the reversing frame 121 in conjunction with the upward movement of the double-sided disk reversing assembly 120, The pair of lever means (151 and 157) are opened in conjunction with the lowering of the double-sided disk reversing assembly 120.

<Disk drive unit>
FIG. 22 is a schematic diagram showing the configuration of the disk drive unit.

  The disk drive unit 180 shown in FIG. 22 is disposed at the lowermost right portion in the housing 2 shown in FIG. 1, and includes a transport tray 4A and a reverse tray on which the double-sided disk 3 is placed. Since both 4B are symmetrically formed and the double-sided disk reversal / carrier unit 20 is also symmetrically formed, the disk drive unit 180 may be arranged on the left side and / or right side in the housing 2. Is.

  In the disk drive unit 180 described above, a turntable motor 182 provided in the box 181, a turntable 183 that is fixed to the motor shaft of the turntable motor 182, mounts the double-sided disk 3, and is rotatable, and a double-sided disk 3 having a known structure provided with an optical pickup 184 that is provided so as to be movable in the radial direction of 3 and that records and / or reproduces the A-side or B-side of the double-sided disc 3. .

  Further, a transport tray 4A or a reverse tray 4B on which a desired double-sided disk 3 transported by the double-sided disk reversing / carrier unit 20 is placed is inserted from the disk inlet / outlet 181a of the box 181. The transport tray 4A or the reversing tray 4B is integrally moved to the turntable 183 side by an elevating means (not shown), and the double-sided disk 3 placed on the transporting tray 4A or the reversing tray 4B is placed on the turntable 183. While being placed, the transfer tray 4A or the reversing tray 4B is retracted from the double-sided disk 3 and lowered downward. Thereafter, the double-sided disk 3 is rotated integrally with the turntable 183, and the A-side or B-side of the double-sided disk 3 is recorded and / or reproduced by the optical pickup 184. Depending on the type of the double-sided disk 3 to be used, there are cases where only reproduction is performed and cases where recording and reproduction are performed.

  In the disk autochanger device 1 having the double-sided disk reversing mechanism and the double-sided disk reversing mechanism according to the present invention described in detail above, the double-sided disk reversing / carrier unit 20 can be moved up and down between the magazine 10 and the disk drive unit 180. However, the present invention is not limited to this, and a structure in which the base provided with the double-sided disk reversing mechanism 180 is fixed to the front side of the disk drive unit 180 may be used. Comparing this case with the conventional example, as described with reference to FIGS. 24 and 25, in the conventional example, the drive source 214 that moves the May frame 211 up and down after the carriage 216 is reversed and the drive source 221 that reverses the carriage 216 are separately provided. Although necessary, the double-sided disk reversing mechanism 120 of the present invention can move the double-sided disk reversing assembly 120 up and down with a single drive source and can reverse the double-sided disk reversing assembly 120. Further, in the present invention, unlike the conventional example, the double-sided disk reversing assembly 120 can maintain the same height position on the base at the lowered position before reversing and the lowered position after reversing. It can always correspond to the doorway.

It is the perspective view which showed the whole structure of the disk autochanger apparatus to which the double-sided disk inversion mechanism based on this invention was applied. FIGS. 2A and 2B are perspective views for explaining the magazine shown in FIG. 1, in which FIG. 1A shows the appearance of the magazine, and FIG. FIG. (A), (b) is the top view and sectional drawing for demonstrating the tray for conveyance shown in FIG. 1, and the tray for inversion. It is the perspective view which showed the whole structure of a double-sided disk inversion and carrier unit, and showed the initial state which the double-sided disk inversion assembly of the double-sided disk inversion mechanism part provided on the carrier base has reached the descent position. It is the perspective view which showed the whole structure of a double-sided disk inversion and carrier unit, and the state which the double-sided disk inversion assembly of the double-sided disk inversion mechanism part provided on the carrier base has reached the raising position. It is a top view of a double-sided disk inversion and carrier unit. It is a front view of a double-sided disk reversing / carrier unit, and is a view showing an initial state where a double-sided disk reversing assembly of a double-sided disk reversing mechanism provided on a carrier base has reached a lowered position. It is a front view of a double-sided disk reversing / carrier unit, and is a view showing a state in which a double-sided disk reversing assembly of a double-sided disk reversing mechanism provided on a carrier base has reached a raised position. In the double-sided disk reversing / carrier unit, it is a perspective view showing a state where a double-sided disk reversing mechanism provided on the carrier base is removed. FIG. 10 is an enlarged perspective view illustrating a mechanism for locking the tray lock releasing mechanism and the double-sided disk reversing assembly shown in FIG. 9 to the carrier base. (A)-(c) is a figure for demonstrating operation | movement of a tray lock cancellation | release mechanism part, and operation | movement which locks the double-sided disk inversion assembly which reached the descending position with respect to a carrier base. It is the perspective view which showed the initial state which the double-sided disk inversion assembly part has reached the descent position in the double-sided disk inversion mechanism part in the state which removed the carrier base. It is the perspective view which showed the state which the double-sided disk inversion assembly reached the raise position in the double-sided disk inversion mechanism part in the state which removed the carrier base. (A), (b) is the figure which expanded and showed the 1st link member and slide gear which were shown in FIG.12 and FIG.13, respectively. It is a perspective view for demonstrating the double-sided disk inversion assembly shown in FIG.12 and FIG.13. It is the figure which showed the initial state in which a pair of pantograph part shrunk and the double-sided disk inversion assembly has reached the lowered position on the carrier base. It is the figure which showed the state which a pair of pantograph part extended and the double-sided disk inversion assembly has reached the raising position on a carrier base. It is the figure which showed the state which the inversion of the double-sided disk inversion assembly started in the raising position. It is the figure which showed the state which the inversion of the double-sided disk inversion assembly was completed in the raising position. (A), (b) is the front view and side view which showed the aspect in which a pair of disc chucking mechanism part has reached the initial state. (A), (b) is the front view and side view which showed the aspect in which a pair of disc chucking mechanism part has reached the disc chucking state. It is the schematic which showed the structure of the disk drive unit. (A)-(d) is a figure for demonstrating the basic principle of the disk surface switching in the conventional disk surface switching mechanism. It is a perspective view for demonstrating the surface switching mechanism of the conventional disc. It is the perspective view which showed the state which the inversion of the double-sided disk was completed in the conventional disk surface switching mechanism.

Explanation of symbols

1 ... disk autochanger device,
3 ... Double-sided disk, 3a ... A side, 3b ... B side, 3c ... Center hole,
4A ... 1st tray (transport tray), 4B ... 2nd tray (reversing tray),
10 (10A, 10B) ... Magazine,
20 ... Double-sided disk reversal / carrier unit, 21 ... Carrier base,
40 ... Tray lock release mechanism, 41 Tray lock release member,
43 ... motor, 50 ... cam wheel gear, 52 ... geneva body,
54 ... Lock member, 54b, 54c ... Lock piece,
60 ... Tray drawer mechanism,
80: Double-sided disk reversing mechanism,
90A, 90B ... a pair of pantograph parts, 91a ... a fulcrum pin,
93A, 93B ... 1st link member,
93b ... arch-shaped internal teeth, 93c ... lower teeth missing,
94A, 94B ... second link member, 99b ... fulcrum pin,
96A, 96B ... slide gear,
96a ... arch-shaped external teeth, 96b ... arch-shaped internal teeth, 98A, 98B ... tension springs,
99A, 99B ... horizontal support plate,
DESCRIPTION OF SYMBOLS 100 ... Drive part, 102 ... Double-sided disk inversion motor,
112A, 112B ... The last two-stage gear of the gear train for reduction,
120 ... Double-sided disk reversing assembly,
121 ... Frame for reversal, 122 ... Front side tray support plate,
122e3: Double-sided disk reversing assembly locking piece,
123 ... Back side tray support plate 124 ... Support shaft, 125 ... Support shaft,
126 ... one-way clutch, 127 ... reverse gear, 130 ... two-stage gear,
150: Disc chucking mechanism,
151 ... 1st lever, 157 ... 2nd lever,
161: Disc chucking member,
180: Disk drive unit.

Claims (4)

A first tray for conveyance on which a double-sided disk is placed, and a second tray for reversal formed in the same shape as the first tray and facing the double-sided disk on the first tray are mounted on the lower and upper stages, respectively. In a double-sided disk reversing mechanism for reversing the double-sided disk integrally with both trays by reversing the reversal frame,
With the base to be the base,
At the tips of the reversing frame on which the first tray and the second tray on which the double-sided disk is mounted are mounted, and a pair of lever means attached to the top and bottom of the reversing frame so as to be openable and closable. A pair of disk chucking members are arranged opposite to each other, and the pair of lever means are closed immediately before the reversing frame is reversed, so that the pair of disk chucking members enter the center hole of the double-sided disk from above and below. While holding the double-sided disc with the pair of disc chucking members, the pair of lever means are opened when the reversing frame is not inverted so that the pair of disc chucking members are removed from the center hole of the double-sided disc. A double-sided disk reversing assembly with disk chucking means for retraction;
The double-sided disk reversing assembly provided on the base is moved up and down between a lowered position and a raised position on the base, and the double-sided disk reversing assembly is moved when the double-sided disk reversing assembly reaches the raised position. Driving means for reversing the assembly,
The disk chucking means closes the pair of lever means in conjunction with the upward movement of the double-sided disk reversing assembly, and opens the pair of lever means in conjunction with the lowering of the double-sided disk reversing assembly. Features a double-sided disc reversing mechanism. The double-sided disk reversing mechanism according to claim 1 ,
A double-sided disk reversing mechanism, comprising: locking means for locking the double-sided disk reversing assembly to the base when the double-sided disk reversing assembly reaches the lowered position. A first tray for conveyance on which a double-sided disk is placed, and a second tray for reversal formed in the same shape as the first tray and facing the double-sided disk on the first tray are mounted on the lower and upper stages, respectively. A disk autochanger device having a double-sided disk reversing mechanism for reversing the double-sided disk integrally with both trays by reversing a reversal frame,
A magazine in which a plurality of sets of the first trays on which the double-sided discs are placed are stacked substantially horizontally;
A disk drive unit for recording and / or reproducing the double-sided disk;
A carrier base provided between the magazine and the disk drive unit so as to be movable up and down; a tray pulling mechanism provided on the carrier base so as to be movable in the longitudinal direction of the first and second trays; A pair of reversing frames on which the first tray and the second tray on which a double-sided disk is mounted are mounted, and a pair of lever means attached to the top and bottom of the reversing frame so as to be openable and closable. The disk chucking members are arranged opposite to each other, and the pair of lever means are closed immediately before the reversing frame is reversed, so that the pair of disk chucking members enter the center hole of the double-sided disk from above and below. While holding the double-sided disc with the pair of disc chucking members, the pair of lever means is opened when the reversing frame is not inverted. A double-sided disk reversing assembly provided with a disk chucking means for retracting a pair of disk chucking members from the center hole of the double-sided disk; and the double-sided disk reversing assembly provided on the carrier base; A double-sided disk reversing / carrier unit having a drive means for vertically moving the double-sided disk reversing assembly when the double-sided disk reversing assembly reaches the raised position. Made up of,
The disk chucking means closes the pair of lever means in conjunction with the upward movement of the double-sided disk reversing assembly, and opens the pair of lever means in conjunction with the lowering of the double-sided disk reversing assembly. A disc autochanger device with a double-sided disc reversing mechanism. In the disk autochanger device provided with the double-sided disk reversing mechanism according to claim 3 ,
A disk autochanger device having a double-sided disk reversing mechanism, characterized in that a locking means is provided for locking the double-sided disk reversing assembly to the carrier base when the double-sided disk reversing assembly reaches the lowered position. .

Images