JPS59144064A - Automatic loading disk player - Google Patents

Abstract

PURPOSE:To attain both miniaturization and reduction of cost by using a disk diameter discriminating mechanism and a disk carrying means as the driving source of the disk guide means. CONSTITUTION:A disk diameter discriminating mechanism interlocks the outer circumference of a disk to discriminate the outer diameter of the disk as soon as a pair of guide means 120 and 121 set at both sides of the transport path of the disk start guidance of the disk 9. This disk diameter discriminating mechanism guides the disk 9 together with a disk carrying means by having coincidence between the distance between the guide means 120 and 121 and the outer diameter of the disk 9. The disk carrying means functions to release the coupling state between the disk 9 and the means 120 and 121 during a play of the disk 9.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an autoloading disc player in which a housing is provided with a slot for inserting a disc.

A so-called autoloading disc player has a housing with a slot for inserting a disc,
A playing means provided in the housing and including a turntable and a pickup, and a disk transporting means for transporting the disc inserted from the slot to a predetermined playing position on the upper turntable, and the disc is transferred to the turntable. This automates the disc playing procedure, such as placing the pickup on the disc surface and placing the lead-in on the disc surface. Conventionally, in such an autoloading disc player, the structure of the disc transport means is multi-millimeter, making the player as a whole large in size and high in cost.

Furthermore, when transporting a disc near a predetermined performance position, the disc inserted through the slot is often transported and moved in two directions, for example, parallel to the turntable and substantially perpendicular to the turntable. Since a relatively large space is required to transport the disc in the player, it has been difficult to downsize the entire player.

The present invention has been made in view of the above points, and its purpose is to provide an autoloading disc player that is low in cost and easy to downsize.

The autoloading disc player according to the present invention comprises:
A housing having a slot into which a disc is inserted, a playing means provided in the housing, and a disc transporting means transporting the disc to a predetermined playing position, the disc transporting means being disposed on both sides of the disc transporting path. a pair of guide means for guiding the disk to be conveyed along the conveyance path; and a pair of guide means for guiding the disk and simultaneously engaging the outer periphery of the disk to determine the diameter of the disk. a disc diameter determining mechanism, the disc diameter determining mechanism drives the guiding means so that the distance between the phases n of the guiding means matches the outer diameter of the disc; The disc is guided by engaging with the outer periphery of the disc in cooperation with the disc transport means, and the disc transport means releases the engagement state between the disc and the guide means during disc playing. This is an autoloading disc player characterized by:

DESCRIPTION OF THE PREFERRED EMBODIMENTS An autoloading disc player according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the entire autoloading disc player according to the present invention.

Reference numerals 2 and 3 are vertical chassis perpendicular to the turntable, which will be described later, and are fixed to the right and left sides of the housing 4 of the main body 1 facing each other by machine screws or the like (
However, the right side and left side referred to here are the right side and left side facing forward as shown in the direction of arrow Y, and are respectively shown as the direction of arrow X and the opposite direction, and the same applies hereinafter.) Vertical chassis 2 A pair of horizontal chassis 5 and 6, which are formed in an abbreviated shape and parallel to the turntable described later, are arranged facing each other between the vertical chassis 2 and 3.
It is fixed by screws or spot welding. The front panel 7, which constitutes the front part of the housing 4, is made of, for example, a light alloy plate, and the rear panel 8, which also constitutes the rear part, is formed by applying plastic working to a steel plate or the like.

The front panel 7 is provided with a long side opening 7a extending in its longitudinal direction. This long mouth part 7a has a tree 5.
- A slot member 12 is fitted with a substantially rectangular slot 12a for inserting a disk 9 to be played into the housing 4, which is made of oil or the like.

Inside the housing 4, a pair of turntables 13 and 14 are disposed facing each other in the vertical direction (in the direction of arrow Z and the opposite direction) to hold the disc 9 between them when playing the disc. The turntables 13 and 14 are each swingably supported by one of a pair of upper and lower support mechanisms 15 and 16 shown in FIGS. 1 and 5 (however, in FIG. only the right side is shown).

The upper and lower support mechanisms 15 and 16 each include a pair of upper and lower angle members 17 and 18 and a pair of upper and lower turntable plates 19 and 20, respectively. The angle members 17 and 18 have bent portions 17 at both left and right ends.
a and 18a, respectively, and the rear ends of the two-layer curved portions are provided with shafts 17 on the inner surfaces of the right and left longitudinal sharts 2 and 3, respectively.
Both vertical chassis 6 are swingably attached to chassis 2 and 3 by being supported via b and 18b, respectively.

Further, bent portions 19a and 20a are provided at both left and right ends of the turntable plates 19 and 20, respectively, and the bent portions 17a and 18a of the angle members 17 and 18 are fitted onto these bent portions 19a and 20a, respectively. There is. Turntable plates 19 and 20 have respective bent portions 19
a and 20a, the angle members 17 and 18 are rotatably axially supported near their swing ends, that is, near their respective front ends of the bent portions 17a and 18a via shafts 19b and 20b.

As is particularly clear in FIG. 5, on each opposing surface side of the upper and lower angle members 17 and 18, a pair of upper and lower click springs 21, each receiving a reaction force at the horizontal portions 17C and 18c of the two angle members, are attached to the shafts. 17d and 18d, and the upper and lower turntable plates 1 and 20 are click-biased by this click spring 21 in a direction in which the rear ends of the two turntable plates move away from each other. Further, the angle members 17 and 18 and the turntable plates 19 and 20 are urged toward each other by a pair of left and right coil springs 22.

The turntables 13 and 14 and the support mechanisms 15 and 16 together with a pickup device (not shown) for reading information from the recording surface of the disc 9 constitute a part of the performance means. Further, although not shown, the above-mentioned playing means includes a playing end detection means for detecting the end of the disc playing.

Either one of the turntables 13 and 14 is rotationally driven via a belt 26 by a drive motor 25 disposed at the rear left side of the housing 4 .

In addition, at the center of each opposing surface of the turntables 13 and 14, holding portions 13a and 14a for holding the disc 9 are provided.
are protruding from each other, and approximately ring-shaped rubber sheets 13b and 14. b is attached.

As is particularly clear in FIG. 4, the turntable 13
is the horizontal part 190 of the upper turntable plate 19
Supported by On the upper surface of this horizontal portion 19C, a longitudinal reinforcing member 27 extending in the left-right direction is provided with a plurality of machine screws 2.
7a, and the horizontal portion 19c is reinforced.

The holding portion 13a of the turntable 13 is provided with an inner wall portion 13d forming a recess 13C.
A sliding shaft 28 is fitted into the center of the bottom of d. Also,
An EP disc adapter 29 is fitted into the fourth part 13c to position the center of the disc 9 at a predetermined performance position by engaging with the center hole of the EP disc 9. 28 so as to be slidable within a predetermined range. The bottom of the inner wall 13d and the adapter 29
The coil spring 30 interposed between the coil spring 30 and the coil spring 30 is used to impart a piascus to the adapter 29. A tip 29a (referred to as an engaging protrusion) of the adapter 29 protrudes beyond the surface of the rubber sheet 1311, and has a tab on its outer periphery for engaging with the center hole of the disk 9 and positioning the center of the disk 9. 9-- A pa part 29b is provided. A groove 28a that opens upward is formed in the gastric axis 28, and a shaft 27b'/)<
It is inserted. Further, bearing members 33a and 33b are interposed between the bottom of the groove 28a and the tip of the shaft 27b.

When the disc 9 is not held between the upper and lower turntables 13 and 14, that is, when both turntables are in an open state, the turntable 13 is mounted on a support provided on the horizontal portion 19C of the turntable plate 19. Part 19d
is supported by the horizontal portion 19C by engaging with the upper surface of a ring-shaped groove 13e formed on the outer periphery of the inner wall portion 13d.

Further, when the upper and lower turntables 13 and 111 sandwich the disc 9, that is, when both turntables are in the closed state, the turntable 13 receives an upward reaction force and lifts up somewhat, and the bearing members 33a and 33b
It is rotatably supported by a shaft 27b via. The support portion 19d and the ring-shaped groove 13e are formed so that the mutual engagement state is released when both turntables are in the closed state 10-.

On the other hand, the lower turntable 14 is supported by the horizontal portion 20C of the turntable plate 20. A convex portion 140 is provided on the lower surface of the gripping portion 14a of the turntable 14.
A bearing member 34 such as a ball bearing is fitted into the convex portion. A shaft member 20d fixed to the horizontal portion 200 is fitted into the inner peripheral surface of the bearing member 34. The turntable 14 is rotatably supported by the horizontal portion 20c via the bearing member 34 and the shaft member 20d.

In addition, an LP type disk 9 is provided at the center of the holding portion 14a.
A tapered portion 35a is provided on the outer periphery of the disc 9 to engage with the center hole of the disc 9 to position the center of the disc 9 at a predetermined performance position.
A spindle 35 for the P disk is fitted. A tip 35b (referred to as an engaging protrusion) of the spindle 35 protrudes from the surface of the rubber sheet 14b, and an engaging portion 28b provided at the tip of the sliding shaft 28 can be fitted into the center of the shaft. A through hole 35C is provided. The holding portion 14a is further provided with four portions 14d that can accommodate the engagement protrusion 29a of the adapter 29 when both turntables 13 and 14 are in the closed position.

As shown in FIGS. 1 to 3, a support plate 38 is fixed to the right front of the upper surface of the horizontal chassis 5 via a plurality of support members (not shown). A drive motor 39 is fixed to the rear of the lower surface of the support plate 38 . A small pulley 40 is fitted to the output shaft (not shown) of the drive motor 39.
It is connected via a belt 42 to a pulley 41 rotatably provided on the upper surface of the support plate 38 . A gear portion 41a is formed on the lower surface of the pulley 41.
is engaged with a gear 43 rotatably provided on the lower surface of the support plate 38 on the left side of the pulley 41. A small gear 43a is fixed to the lower surface of the gear 43, and the scratch gear meshes with a drive gear 45 rotatably provided on the front lower surface of the support plate 38 via a shaft 44. At a predetermined position on the lower surface of the drive gear 45, a drive lever A46 is placed at one end of the shaft 4.
It is swingably attached via 6a.

The other end of the drive lever A46 is connected by a shaft 46b to one end of a link member 48 which is swingably attached to the upper right front of the horizontal chassis 5 by a shaft 48a. Furthermore, another drive lever B49 is swingably attached to the lower surface of the drive gear 45 via a shaft 49a at one end thereof. The axis 49a is located at a position symmetrical to the axis 46a with the axis 44 as the center. The drive lever 849 extends in the left-right direction on the horizontal chassis 5, and is attached to one end of another link member 50 swingably provided on the upper left front side of the horizontal chassis 5 via a shaft 50a. The ends are connected.

Further, two detection switches 51a and 51b disposed near the drive gear 45 are for detecting the rotation angle of the drive gear.

As is particularly clear in FIGS. 5 and 6, the vertical chassis 2 and 3 are provided with openings 2a and 3a, respectively, which extend in the front-rear direction (the direction of arrow Y and the opposite direction). As is clear from FIGS. 1 to 3, slide plates 52 and 53 are fitted into the openings 2a and 3a, respectively, and these slide plates 52 and 53 are attached to the vertical chassis 2 and 3. They are supported rotatably within a predetermined range in the front-rear direction by support mechanisms (not shown) provided respectively. Projections 52b and 53h having elongated holes 52a and 53a, respectively, are provided at the front ends of both slide plates 52 and 53, respectively.
Shafts 48b and 5Qb protruding from the other ends of the shafts 48b and 5Qb are slidably engaged with each other.

As shown in FIG. 5, a pair of left and right links 55 are provided on each outer surface of the vertical chassis 2 and 3 (however, only the link on the vertical chassis 2 side is shown in FIG. 5).
. The link 55 consists of a pair of swinging members 57 and 58 that are swingably supported by the respective vertical chassis 2 and 3 via a shaft 56. Each swinging end of the swinging members 57 and 58 is connected to each bending portion 19a and 20a of the upper and lower turntable plates 19 and 20 by shafts 57a and 58a. However, the positions of the shafts 57a and 58a are such that the upper and lower turntable plates 19 and 20 are
7 and 18, i.e. axis 19
It is located a predetermined distance ahead of the positions b and 20b. In addition, the swinging members 57 and 58 and the turntable plate 1
The respective bent portions 19a and 20 of 9 and 20 are located at positions sandwiching the vertical chassis 2 (or 3) from each other. Therefore, in the vertical chassis 2 (or 3), the vertical chassis can swing the swinging ends of the swinging members 57 and 58, and thus the shafts 57a and 58.
Opening 2 that extends vertically so as not to prevent swinging of a.
b and 3b (see FIG. 6 for the opening 3b).

The swinging members 57 and 58 have convex portions 5711 that engage with each other.
and a recess 58b. An engagement shaft 57C is provided on the inner surface of the convex portion 57b, which can engage with the front edge of the engagement recess 59 provided on each outer side of the slide plates 52 and 53 when the slide plates 52 and 53 slide backward. It is being

The link 55 connects the upper and lower support mechanisms 1 so that the upper and lower turntables 13 and 14 move toward or away from each other in synchronization.
5 and 16 are connected.

In addition, the above-mentioned drive motor 39, small pulley 40, pulley 41, gear portion 41a1 belt 42, gear 43, small gear 4
3a1- Drive gear 45, drive lever Δ46, link members 48 and 50, drive lever B49, and slide plate 52
and 53 constitute a link driving force applying mechanism that applies driving force to a part of the link 55. Further, the link 55 and the link driving force applying mechanism constitute a driving means for driving the upper and lower turntables 13 and 14 via the upper and lower support mechanisms 15 and 16.

As shown in FIGS. 1 to 3, a pair of rails 63 extending in the front direction are fixed to the upper and lower surfaces of the upper and lower horizontal chassis 5 and 6 using machine screws or the like.

Reference numeral 65 denotes a carriage capable of carrying the disk 9, and is supported by rails 63 so as to be movable in the front and rear directions.

As is particularly clear in FIG. 7 (al and city), the carriage 65 has a pair of single-shaped members 66 and 67 formed into substantially the same shape by plastic working or the like. These single-shaped members have one side portion 66a extending in the left-right direction.
and 67a are opposed in the vertical direction,
Each opposing surface is connected by a pair of columnar connecting members 68. A pair of groove rollers 66C and 67c are pivotally supported on the lower and upper surfaces of the other sides of the single-shaped members 66 and 67, that is, the portions 66b and 67b parallel to the rail 65, respectively. The two V-groove rollers are movably engaged with the knife portion of the rail 63, allowing the carriage 65 to move back and forth.

Bent and raised portions 66d and 67dtfi are provided at the rear of the other side portions 66b and 67b of the single-shaped members 66 and 67, respectively. A pair of clamping members 69 and 70 arranged to clamp the recording surface of the disk 9 are provided at both bending and raising parts, with one end of each of the clamping members 69 and 70 swinging freely through shafts 69a and 70a, and each of the loose ends are supported so as to face each other.

17- As shown in FIG. 7(C), the lower surface of the other end of the clamping member 69 has a friction surface 7 that comes into contact with the recording surface of the disk 9.
A ring-shaped member 71 having a diameter 1a and made of rubber or the like is rotatably attached via a collar member 73 by a caulking pin 72. Furthermore, on the upper surface of the end of the other holding member 70 (1!), there is also a ring-shaped member 7 having the same shape as the ring-shaped member 71, similar to the above-mentioned square end of the holding member 69.
6 is attached facing the ring-shaped member 71.

The shafts 69a and 70a supporting the clamping members 69 and 70 have other side portions 66b and 6 of the 1-shaped members 66 and 67, respectively.
A pair of left and right coil springs 77 receiving reaction force are externally fitted onto the coil springs 7b. The clamping members 69 and 70 are arranged so that the sacrum end portions (the ends to which the ring-shaped members 71 and 76 are attached, that is, the disc clamping portions) of the clamping members 69 and 70 approach each other by the coil springs 77. In other words, the recording surface of the disc 9 is biased so as to be clamped therebetween. The state in which the upper sacral ends of both the clamping members 69 and 70 are close together is the closed state of the clamping members 18 and 70.

Further, a pair of cam grooves 79a are provided at the rear of the carriage 65.
A plate-shaped cam member 79 having 79b and 79b is disposed. The cam member 79 has support portions 668 provided at each rear end of the side portions 66a and 67a of the L-shaped members 66 and 67.
and 67e with a pair of machine screws 80. Each machine screw 80 is inserted into the cam member 79 through a pair of long holes 79c extending in the left-right direction in the cam member 79.
Since the cam member 79 is attached to each of the side portions 66a and 67a of each of the above-mentioned L-shaped members, the cam member 79 can reciprocate within a predetermined range in the left-right direction.

On the other hand, at the rear ends of the clamping members 69 and 70, bracket parts 69b and 70b extending to the rear of the respective side parts 66a and 67a of the L-shaped members 66 and 67 are provided with cams at a predetermined distance from each other in the left and right direction. It is provided corresponding to the grooves 79a and 79b. At the rear ends of the bracket parts 69b and 70b, shafts 69c and 700 project rearward, and these shafts engage with cam grooves 79a and 79b, respectively. Cam groove 79 provided on the right side of the cam member 79
A consists of a sloped part that slopes downward toward the left, and a horizontal part that continues to the right end of the sloped part. In addition, the cam member 7
The cam groove 791 provided on the left side of the cam groove 791 consists of an inclined part inclined downward toward the right and a horizontal part continuous to the right end of the inclined part, and the cam groove 79b and the cam groove 798 are arranged in the vertical direction. are provided with a predetermined amount of deviation.

Since the cam grooves 79a and 79b are formed as described above, as the cam member 79 moves leftward, the round ends of both the clamping members 69 and 70, that is, the disc clamping part, move toward the coil spring 77. In other words, the disk 9 is released from being held by the disk holding portions.

The cam member 70 has a coil spring 81 provided between the cam member and one side 66a of the L-shaped member 66.
Paisuka is given by.

Note that a disk 9 is located at a predetermined position behind the carriage 65.
A detection switch 82 that can be engaged with the outer periphery of the sensor is provided. This detection switch 82 is connected to the disk 9 by the clamping member 69.
and 70 to detect that the gripping position has been entered.

Further, detection switches 83a and 83 are provided at the front and rear ends of the housing 4 to engage with the carriage 65.
b is provided. These detection switches 83a and 83b are for detecting completion of the movement of the carriage in the front and rear direction when a portion of the carriage 65 is engaged.

The clamping members 69 and 70, the coil spring 77, and the cam member 79 constitute a clamping mechanism that clamps the recording surface of the disk 9.

As shown in FIGS. 1 and 2, a plate-shaped clamp lever A84 is disposed on the horizontal chassis 5. As shown in FIGS. Two shafts 84a are protruded from the lower surface of the clamp lever A84, and each shaft slides into one of a pair of elongated holes 5a formed in the horizontal chassis 5 and extending in the left-right direction. freely engaged. Further, an engagement shaft 84b is fixed to the lower surface of the right end of the clamp lever A84, and the engagement shaft is connected to a cam portion 52c protruding from approximately the middle portion of the slide plate 52 on the right side 21-.
is in contact with. The cam portion 52c is formed with a parallel portion 52d extending a predetermined amount in the front-rear direction, and a tapered portion 52e continuous to the front end of the parallel portion 52d.

When the slide plate 52 is in its neutral position shown in FIGS. 1, 2, and 5, the engagement shaft 84b is in contact with the vicinity of the front end of the parallel portion 52d. ing. Further, the length of the parallel portion 52d in the front-rear direction is slightly larger than the distance by which the slide plate 52 can slide forward from the neutral position. Further, the left end of the clamp lever A89 can be engaged with the right end engagement shaft 79d of the cam member 79 mounted on the carriage 65 when the carriage 65 is at the frontmost position.

The clamp lever A84 is urged rightward by a coil spring 85 placed in front of the clamp lever A.

As is clear from FIGS. 1 and 5, another clamp lever 887 is provided 22- on the upper rear side of the horizontal chassis 5. The clamp lever B87 has a pair of shafts 87a and 87a provided near the left and right sides of the lower surface of the clamp lever B.
7b is slidably engaged with a notch 5b and an elongated hole 5C provided in the horizontal chassis 5 to extend in the left-right direction, so that it is movable in the left-right direction within a predetermined range. The shaft 87a on the right end side of the clamp lever B87 further includes:
It abuts on a cam portion 52f provided at the rear end of the slide plate 52. The cam portion 52f is formed with a parallel portion 52 (+ and a tapered portion 521 continuous to the rear end of the parallel portion) parallel to the extending direction (front-back direction) of the slide plate 52.

The clamp lever B87 is positioned such that when the slide plate 52 is in the neutral position, the shaft 87a on the right end side comes into contact with the parallel portion 52 (+).
The left end of B87 has a predetermined length in the front-rear direction,
The left end portion is a carriage 65 at the rear of the housing 3.
The right end engagement shaft 79 of the cam member 79 within a predetermined movement range of
can be engaged with d. Clamp lever B87 is
A bias spring 88 provided adjacent to the clamp lever B provides a rightward bias.

It should be noted that the link driving force applying mechanism (described above) is a component of the drive means (described above) for driving the turntables 13 and 14, and is for applying a driving force to the link 55, which is also a component of the drive means. ) is the above clamp lever A
A driving force is applied to the cam member 79 together with the clamp lever B84 and the clamp lever B87. It constitutes a mechanism for applying the cam member driving force t1. Further, the slot 12 of the housing 4 is operated by the clamping mechanism mounted on the carriage 65 to clamp the recording surface of the disk 9 and the cam member driving force applying mechanism.
A gripping mechanism is configured to grip the disc 9 inserted from point a by gripping the recording surface of the disc.

Next, a carriage traveling drive device that drives the carriage 65 to travel in the front-back direction will be described.

As shown in FIG. 3, a support plate 92 having approximately the same shape as the support plate 38 disposed on the right front of the upper surface of the horizontal chassis 5 is provided on the left front of the lower surface of the lower horizontal chassis 6, for example. It is fixedly installed via a member (not shown). As is clear from FIGS. 1 and 2, a drive motor 93 is fixed to the rear of the upper surface of the support plate 92. As shown in FIGS. A small pulley 94 is fitted onto an output shaft (not shown) of the drive motor 93. Further, a gear base member 95 is swingably supported on the lower surface of the support plate 92. A pulley 97 is rotatably provided on the rear end of the gear base member 95, that is, on the upper surface of the swinging end.
connected by.

A gear portion 97a is formed on the upper surface of the pulley 97,
This gear portion 97a meshes with a gear 99 rotatably supported on the upper surface of the swing base 95 on the right side of the pulley 97. A small gear 99a is provided on the upper surface of the gear 99, and the small gear is preferably integrated with the lower surface of a pulley 101 rotatably supported via a shaft 100 on the front upper surface of the support plate 92. Gear part 1 formed in
It meshes with 01a. Further, the gear base member 95 is given a counterclockwise bias in FIGS. 1 and 25-2 by the coil spring 102.

On the other hand, a pair of pulleys 104 are rotatably provided at the front and rear ends of the lower surface of the horizontal chassis 5. Further, a belt 105 is stretched between both pulleys 104. Both ends of the belt 1050 are connected to the L-shaped member 67 of the carriage 65.
The middle part of the belt is wound around the pulley 101 in a conventional manner. Further, the left side of the rear end of the gear base member 95 is connected to a detection switch 106 disposed on the left side of the drive motor 93 when the gear base member swings clockwise in the drawings (FIGS. 1 and 2).
The sensor is adapted to engage with the detection section 106a of the sensor.

By the drive motor 93, small pulley 94, pulley 97, gear part 97a1 belt 98, gear 99, small gear 99a1 pulley 101, gear part 101a and belt 105,
A carriage traveling drive device is configured to drive the carriage 65 to travel back and forth. Further, the aforementioned driving means and gripping mechanism, 26--the above-mentioned carriage running drive device, etc. constitute a disk conveying means for conveying the disk 9 to the vicinity of the above-mentioned predetermined performance position.

Furthermore, the gear base member 95 and the coil spring 10
2 and the detection switch 106 constitute a detection means for detecting an increase in the running resistance of the carriage 65, that is, an increase in the conveyance resistance of the disk 9.

As is clear from FIGS. 1 to 3 and FIG. placed in position.

The right and left discrimination levers 111 and 112 preferably have the same shape and are arranged upside down, that is, inverted with respect to each other.

Each of the discrimination levers 111 and 112 is swingably supported by a support shaft 113 that extends in a direction substantially perpendicular to the recording surface of the disk 9, that is, in the vertical direction, and is fixed to the horizontal chassis 5 (or 6). The discrimination levers 111 and 112 are, for example, formed by applying plasticity to a rigid plate, and have approximately dogleg-shaped side portions 111a and 112a, and a side portion that is continuous with and connected to the side portion. It has opposing substantially T-shaped other side portions 111h and 112b.

Bent portions 111c and 1120 that can engage with the outer periphery of the disk 9 are provided at the rear ends of the other side portions 111b and 112b. A synchronization lever 114 is interposed between the discrimination levers 111 and 112 to synchronize the operations of both discrimination levers. There is a protrusion 114a on the right end of the synchronization lever 114.
is provided. This protrusion 114a is the discrimination lever 11
It is loosely fitted into a cam part provided at the short end of one side part 111a of 1. The cam portion includes a tapered portion 111d and protrusions 111e formed on both sides of the tapered portion.

The synchronization lever 114 also has a protrusion 1141 on the left end.
is provided protrudingly, and the protrusion 114b is connected to the discrimination lever 112.
The MFM is mounted on a cam portion provided at the front end of the other side portion 112b. The cam portion includes a tapered portion 112d and protrusions 112e formed on both sides of the tapered portion.

On the other hand, the horizontal chassis 6 is provided with a pair of openings 6a into which the projections 114a and 114b at both left and right ends of the synchronization lever 114 engage. Inside both openings 6a, there are protrusions 114a and 114b, and thus latch claws 6b and 6C that can latch the synchronization lever 114 near both ends thereof according to the outer diameter dimension of the disk 9, respectively, on the left side of the opening 6a. They are lined up from the top to the right. The latch claw 6b latches the synchronization lever 114 when the outer diameter of the disc 9 is 17 cm, and the latch claw 6C has a similar function when the outer diameter of the disc 9 is 25 cm. Also, the outer diameter of the disk 9 is 30C1117'
In this case, the synchronization lever 114 is latched by the protrusions 114a and 114b engaging the respective right ends of the opening 6a.

As is particularly evident in FIGS. 1 and 2, the synchronizing lever 1
14 is biased counterclockwise in the figure by two fill springs 115. These left and right coil springs 115, the latch claws 6b and 6C, and the above-mentioned 29-right end portions of the opening 6a constitute a pair of left and right latch mechanisms 5 for latching the synchronization lever 114 near both ends thereof. There is. In addition, each bent portion 111 of the discrimination levers 111 and 112
When the disk 9 engages with C and 112c, the latch mechanism on the side closer to the discrimination lever is released.

In addition, the discrimination levers 111 and 112 and the synchronization lever 11
4 and the latch mechanism constitute a disk diameter determining mechanism that engages with the outer periphery of the disk 9 to determine the diameter of the disk.

As shown in FIGS. 1 and 5, a pair of left and right guide plates 120 and 121 are provided on the lower surface of the horizontal chassis 5 and the upper surface of the horizontal chassis 6. have substantially the same shape as each other, and are arranged upside down in the disk transport path, that is, on both outer sides of the left and right rails 63.

Both guide plates 120 and 121 are swingably supported by support shafts 30-122 that extend in a direction substantially perpendicular to the recording surface of the disk 9, that is, in the vertical direction, and that are fixed to the horizontal chassis 5 and 6. At its swinging end, engagement shafts 120a and 121a that can engage with the outer periphery of the disk 9 are provided.

As seen in FIG. 1, guide plates 120 and 12
A pair of left and right contact plates 124 and 125 are arranged to sandwich the horizontal chassis 1 and the horizontal chassis 5 and 6, respectively.

Both abutment plates are swingably supported by a support shaft 122 that supports guide plates 120 and 121. The right abutment plate 124 and the left abutment plate 125 are biased counterclockwise and clockwise in FIG. 1, respectively, by a pair of left and right coil springs 126. This coil spring 126 constitutes a part of the disk diameter determination mechanism. Reset plates 127 and 1 are provided at the front ends of the contact plates 124 and 125, respectively.
28 are swingably attached via shafts 127a and 128a, respectively.

The guide plates 120 and 121 and the contact plate 1
24 and 125 and reset plates 127 and 128
A pair of left and right guide means 31- is constructed by the above.

As will be described later, the pair of left and right guide means is operated by the disk diameter discrimination mechanism (described above) so that the distance between the two means matches the outer diameter of the disk 9 as the disk diameter discrimination mechanism operates. driven by

The guide means guides the disc 9 in cooperation with the disc transport means (described above) so that the disc 9 is transported along the disc transport path, and the disc 9 is brought to a predetermined performance position by the disc transport means. When the disk 9 is being conveyed toward the disk 9, a portion of the guide means (in this embodiment, the shafts 120a and 121a of the guide plates 120 and 121) engage with the outer periphery of the disk 9, thereby guiding the disk 9.

Further, the disk diameter determining operation by the disk diameter determining mechanism described above is performed at the same time as the guiding means guides the disk 9.

Reset plates 127 and 128 are connected to abutment plates 124 and 125 and guide plates 120 and 121, respectively.
=32- Shafts 127b and 128 are protruded from each swing end (
Figure 2 Lesson 1゜These shafts 127b and 128b are designed to be able to engage with engaging portions 66f and 67f provided at the respective rear ends of the L-shaped members 66 and 67 of the carriage 65 ( (See Figure 2). In addition, the reset plate 12
7 and 128 are coil springs 127C and 12, respectively.
8c gives a counterclockwise direction and a clockwise direction, respectively.

Here, the contact plates 124 and 125 are provided with rectangular openings 124C and 125c, respectively. Shafts 120c and 121C protruding from the guide plates 120 and 121 are loosely fitted into the openings 124C and 125C, respectively. Furthermore, detection switches 133 and 134 are fixed to the contact plates 124 and 125 along the rear edges of the openings 124c and 125c. These detection switches 133 and 134 are connected to the shafts 120c and 120c.
When 1C comes into contact with the rear edges of openings 124C and 125c, it is pressed by both shafts 120c and 133-21c to operate.

The detection switches 133 and 134 are connected to the disk 9.
This is for detecting the engagement between the outer periphery of the guide means and the guide means, and this is referred to as the first detecting means.

Further, the above-mentioned detection means for detecting an increase in the transport resistance of the disc 9 is for detecting an increase in the transport resistance to know that the guidance of the disc 9 to the predetermined performance position is completed, This is referred to as a second detection means in contrast to the first detection means.

On the other hand, on the upper surface of the horizontal chassis 5 and the lower surface of the horizontal chassis 6,
A pair of left and right index levers 131 and 132 are each provided movably in the front and rear directions. Both index levers are included in the disk diameter determination mechanism. Each front end of the index levers 131 and 132 is
Discrimination lever 111 by shafts 131a and 132a, respectively.
and 112, respectively. Index lever 1
34- Openings 131b and 132b are formed in 31 and 132, respectively, and a portion of the rear edge of both openings is a shaft protruding from the right and left ends of the contact plates 124 and 125, respectively. 124a and 125a, respectively. Behind the index lever 131, the outer diameter of the disk 9 (
17 cm, 25 cm, and 30 cm), and engages with a shaft 124b provided at the rear of the abutting plate 124,
Engaging portions 131c, 131d, and 131e are formed for positioning the corresponding contact plate 124 at a predetermined position. Also, the contact plate 1 is also attached to the index lever 132.
Engagement portions 132c and 132d that engage with a shaft 125b protruding from the rear of 25 to position the contact plate 125.
and 132e are formed.

Also, on the upper surface of the horizontal chassis 5 and the lower surface of the horizontal chassis 6,
A pair of left and right positioning plates 135 and 136 are provided behind each of the index levers 131 and 132. Both positioning plates are included in the disk transport means (described above). Shafts 135a and 136a project from rear end portions of the positioning plates 135 and 136, respectively. Both shafts 135a and 136a are elongated holes 5 formed in the horizontal chassis 5 and 6, respectively, extending in the front-rear direction.
d and 6d, respectively, in a slidable manner.

Further, at the rear ends of the positioning plates 135 and 136,
Rear end cam portions 52f and 53 of slide plates 52 and 53
Protrusions 135b and 136b that can be engaged with C are provided, respectively.

The positioning plates 135 and 136 also have shafts 135C and 136C protruding from their front ends, respectively. The shafts 135C and 136C engage near the dominant ends of the index levers 131 and 132 through cam holes 5e and 6e formed in the horizontal chassis 5 and 6, respectively. The cam holes 5e and 6e are formed so that when the positioning plates 135 and 136 move forward from the state shown in the first figure, the respective front ends of the positioning plates 135 and 136, and therefore the respective rear ends of the index levers 131 and 132, are formed to the right and the rear ends of the index levers 131 and 132, respectively. It is formed to swing to the left by a predetermined amount. Further, as shown in FIG. 5, positioning plates 135 and 136
is given a rearward bias by a coil spring 137 (however, the coil spring that applies the bias to the left positioning plate 136 is not shown).

Here, the guide means is driven by the disk transport means including positioning plates 135 and 136 (
(described later), the engagement between the disc 9 and the guide means is released while the disc is being played. That is, the left and right guide means are driven by the disk transport means so that the swing angular positions of the dual guide means change in opposite directions.

As is clear from FIGS. 1 to 5, there are a pair of left and right doors 141 and 142 on the back side of the front panel 7.
is provided on the housing 4 so as to be freely openable in the vertical direction.

On the other hand, as shown in FIG. 6, peep windows 7b and 7C are formed at the lower right and upper left of the front panel 7, for example, to view the disc playing status. The doors 141 and 142 are movable between the slot 12a of the slot member 12 fitted in the front panel 7 and the viewing windows.

As is clear from FIG. 5, the doors 141 and 142 are driven by left and right slide plates 53 and 52, and are driven via a pair of left and right shutter levers 143, which have a substantially dogleg shape. and 7G (however, only the right shutter lever is shown in the figure). The left and right shutter levers 143 are swingably attached to the inner surfaces of the vertical chassis 2 and 3 by shafts 144, respectively. At one end of the shutter lever 143 is a shaft 1 that can be engaged with each front end of the slide plates 52 and 53.
43a is provided protrudingly. A coil spring 14 is installed between the shutter lever 143 and the slide plates 52 and 53.
5 is interposed, and the shutter lever 143 is biased clockwise in the figure by the coil spring. In addition, the loose end of the shutter lever 143 and the door 1
41 and 142 are connected via a coil spring 146.

As is clear from FIGS. 1, 2, and 4, a pair of upper and lower guide members 149 and 150 are provided on the upper surface of the horizontal chassis 5 and the lower surface of the horizontal chassis 6 at the front ends of both the horizontal chassis. It is swingably attached via a pair of shafts 151. Guide portions 149a and 150a for guiding the recording surface of the disk 9 are formed at the rear ends of the guide members 149 and 150, facing each other.

Both guide members 149 and 150 are connected to each guide portion 14 by a pair of upper and lower coil springs 152 which are wound around a shaft 151 and whose reaction force is received by the horizontal chassis 5 and 6, respectively.
9a and 150a are biased toward each other (a state in which each guide portion 149a and 150a approaches each other is defined as an open state of each guide member 149 and 150).

Further, protrusions 149h and 150b are provided on the lower surface of the guide member 149 and the upper surface of the guide member 150, respectively.

On the other hand, the drive lever 7I9 is provided with a cam portion 49c that engages with the protrusion 149b of the guide member 149 as the drive lever moves leftward and serves to push the guide member 149 upward. There is. In addition, the horizontal chassis 6
A cam plate 153 is disposed on the lower surface of the cam plate 153 so as to extend from side to side. Since the shaft 6f protruding from the horizontal chassis 6 and the elongated hole 153a formed in the cam plate 153 are slidably engaged, the cam plate 153 is movable in the left-right direction. The right end of the cam plate 153 is connected to the right link member 48 together with the drive lever A46 by a shaft 46b.

At the left end of the cam plate 153, there is a cam portion 1 that engages with the protrusion 150b of the guide member 150 and pushes down the guide member 150 when the cam plate moves rightward.
53h is formed.

Note that the above-mentioned detection switches 51a, 51b, B2.
83a, 83b, 106, 133 and 134 as well as signals generated by the operation of the performance end detection means are sent to a control device (not shown) located within the housing 4. The control device includes drive motors 39 and 93.
A predetermined drive voltage is supplied to each of the above-mentioned signals at a predetermined timing (described in detail in the operation description below). Next, the operation of the autoloading disc player having the above configuration will be explained in accordance with the operating procedure with reference to the drawings.

1 to 8 show the state of the autoloading disc player before a disc is inserted. In this state, the doors 141 and 142 close the viewing windows 7b and 7c (the state shown in FIG. 16(a)), and the slot 12a is open. In addition, a clamping mechanism (described above) that clamps the disk 9 and a guide member 149 are also provided.
and 150 are both in the open state, and the turntable 13
and 14 are closed.

When the outer periphery of the disk 9 inserted through the slot 12a engages with the detection switch 82 at the rear of the carriage 65, the drive motor 39 is started clockwise in FIGS. 1 and 2. Therefore, the drive 41-gear 45 rotates clockwise via the belt 42, pulley 41, gear 43, etc. When the drive gear 45 has rotated 90' in the same direction, the detection switch 51a or 5
1b is activated, the drive motor 39 and therefore the drive gear 45
stops.

Here, as is clear from FIG. 9, as the drive gear 45 rotates 90° clockwise, the right and left link members 48 and 50 are moved through the drive lever Δ46 and the drive lever B49, respectively. approx. 4 clockwise and counterclockwise, respectively.
It swings 5 degrees at a time, and shifts from the state shown by the solid line to the state shown by the two-dot chain line in the figure. Therefore, the slide plates 52 and 53 on both sides slide rearward and move from the position shown by the solid line to the position shown by the two-dot chain line in the figure. At the same time, the clamp lever A84 is moved to the slide plate 5.
It is moved rightward by the coil spring 85 along the second cam portion 52c, and moves from the position indicated by the solid line to the position indicated by the two-dot chain line in FIG. This allows carriage 6
The cam member 79 of No. 5 becomes free, and the coil spring 81
Since the clamping members 69 and 70 are closed together by the coil spring 77, the disc 9
is held in place.

Furthermore, as shown in FIG. 10(a) and FIG. The link 55 is activated by being pushed backward by the front edge of the engagement recess 59 . Therefore, the turntables 13 and 14 are driven via the upper and lower support mechanisms 15 and 16, respectively, and are separated from each other to be in the open state.

On the other hand, when the detection switch 51a or 51b detects that the drive gear 45 has rotated 90' clockwise, the left drive motor 93 starts counterclockwise. When the drive motor 93 is started in the same direction, the pulley 101 is driven counterclockwise in the figure via the belt 98, pulley 97, gear 99, and the like. Therefore, the belt 10
5, a carriage 65 is driven and moves rearward.

When the carriage 65 starts moving backward, first, the outer periphery of the disk 9 engages with at least one of the bent portions 111C and 112C of the discrimination levers 111 and 112.

Here, as shown in FIG. 11(a) and FIG.
Suppose that 2C is engaged first. Then, the determination lever 112
The tapered portion 1 swings clockwise in the figure around the shaft 113, and the tapered portion 1 provided at the rear end of the other side portion 112b.
12d engages with the shaft 114d at the left end of the synchronization lever 114. Since the carriage 65 continues to move further backward,
The shaft 114b, and therefore the left end of the synchronization lever 114, is pushed forward by the tapered portion 112d. Then, the latching state of the shaft 114b by the latch pawl 6b of the opening 6a formed in the horizontal chassis 6 is released, and the discrimination lever 112 attempts to swing clockwise.
Of the protrusions 112e provided on both sides, the left protrusion engages with the shaft 114b, and the synchronization lever 114 is pushed to the right by the protrusion.

On the other hand, another opening 6a formed on the right side of the horizontal chassis 6
The shaft 11 at the right end of the synchronization lever 114 by the latch claw 6b of
The latched state of 4a is not released. Therefore, movement of the synchronization lever 114 to the right is prevented.

Here, considering the state in which the disk 9 is held between the holding members 69 and 70 of the carriage 65, the disk 9 is held between the friction surfaces of the ring-shaped members 71 and 76 attached to the holding ends of the holding members 69 and 70, respectively. The end portion of the recording surface (held portion) is held between the rollers, and is swingable about the held portion. Therefore, as the carriage 65 continues to move rearward, the disk 9 swings to the right about the held portion and moves to the center of the disk transport path.

Therefore, as shown in FIG. 11 (C1 and (d+),
The outer periphery of the disc 9 has discrimination levers 111 and 112 on both sides.
111C and 112C at the same time.

When the outer periphery of the disk 9 engages with the bent portion 111C of the discrimination lever 111, the shaft 114a at the right end of the synchronization lever 114 engages with the bent portion 112c of the discrimination lever 112, in substantially the same manner as when the disk 9 and the bent portion 112c of the discrimination lever 112 are engaged with each other. The latched state of is also released. Therefore, the discrimination levers 111 and 112 on both sides can both swing, and swing in accordance with the outer diameter of the disk 9. When the swinging according to each disk diameter is completed, the synchronization lever 114 is latched again at that position.

If the outer diameter of the disk 9 is, for example, 17cn+, the disk 9 can pass between the discrimination levers 111 and 112 without swinging (see FIG. 12). Therefore,
Both discrimination levers 111 and 112 remain in the initial state shown in FIG. 11 (al) and do not move.

Further, when the outer diameter of the disk 9 is 25CWl or 3Qcm, the shafts 114a and 11 at both ends of the synchronization lever 114
4b is latched by the latch claws 6G of the left and right openings 6a and the respective right ends of both openings 6a, and the discrimination levers 111 and 112 also swing by a predetermined amount accordingly.

As described above, when the discrimination levers 111 and 112 swing by a predetermined amount according to the outer diameter of the 46-disc 9, the index levers 131 and 132 whose front ends are connected to the re-discrimination lever by the shafts 131a and 132a moves forward by a predetermined amount depending on the disk diameter. If the outer diameter of the disk 9 is 25CI11, then the 12th
As shown in the figure, the discrimination lever 111 and the index lever 131 move from the position shown by the solid line to the position shown by the two-dot chain line in the figure. Furthermore, the left discrimination lever 112 and index lever 132 move in exactly the same manner.

On the other hand, as the carriage 65 moves rearward, the engaging parts 66f and 67f provided at the rear ends of the L-shaped members 66 and 67, which are the constituent members of the carriage 65, and the reset plates 127 and 128 The engagement state of is released. Therefore, the abutment plates 124 and 125 and the guide plates 120 and 121 can swing.

As is clear from FIG. 12, the right abutment plate 124, which is now swingable, is caused to swing counterclockwise in the figure by the coil spring 126. Also, axis 1
The guide plate 120, which is engaged with the opening 124C of the abutment plate 1240 via the abutment plate 124C, is also swung in the same direction, and together with the abutment plate 124, the state shown by the solid line in the figure is changed from the state shown by the two-dot chain line. move to a state where

At the same time as this movement is completed, the shaft 124b of the abutting plate 124 engages with the engaging portion 131d formed at the rear of the index lever 132, so that the abutting plate 124 and the guide plate 120 move according to the outer diameter of the disk 9. accurately positioned.

In addition, the left abutment plate 125 and the guide plate 12
1 is moved in exactly the same way and positioned according to the outer diameter of the disk 9.

Note that the outer diameter of the disk 9 is 17CIIl (or 30C
I11), the abutment plates 124 and 12
Each axis 1271b and 125b of index lever 1
Respective rear end engaging portions 131C and 132c of 31 and 132 (
or 131e and 132e).

As is clear from FIG. 13(a), when the carriage 65 carrying the disk 9 moves backward by a predetermined distance, the outer periphery of the disk 9 is moved by the guide plate 120.
and 121, at least one shaft 120a
Alternatively, it engages with the shaft 121a of the guide plate 121 (assuming that it engages with the shaft 121a of the guide plate 121).

Here, as described above, the edge of the recording surface of the disk 9 (the portion to be held) is held by the holding members 69 and 7 of the carriage 65.
Ring-shaped members 71 and 76 provided at each clamping end of 0
It is held in place via each friction surface, and is able to swing freely around the held part. Therefore, carriage 6
As the disc 5 further moves backward, the disc 9 is swung to the right around the clamped portion by the reaction force of the shaft 121a, and is transported along the disc transport path. You will be guided.

Therefore, as is particularly clear in FIG. 13(C), the outer periphery of the disc 9 is simultaneously engaged with the respective shafts 120a and 121a of the guide plates 120 and 121 on both sides 49-, and the disc 9 is brought into the vicinity of the predetermined playing position. transportation is completed.

The outer periphery of the disk 9 engages with both shafts 120a and 121c, and the shaft 120C of the guide plates 120 and 121
Detection switches 133 and 134 on the abutment plates 124 and 125 are actuated by the disk conveying force via the disks 121c and 121c.

When the conveyance of the disk 9 is completed and the carriage 65 can no longer move backward, the pulley 101 becomes unable to rotate (see FIGS. 1 to 3).

However, as the drive motor 93 continues to rotate, the reaction force exerted between the small gear 99a of the gear 99 and the gear portion 101a of the pulley 101 causes the gear base member 95 to move toward the shaft 10.
It oscillates clockwise in the figure with 0 as the center. Therefore, the rear end portion of the gear base member 95 engages with the detection switch 106 to activate the detection switch. That is, the transport resistance increase detection means (described above) is activated.

The detection switch 82, 106. ．． When all the operations of 133 and 134 are completed, the drive motor 9350- stops, and at the same time the drive motor 39 starts counterclockwise in FIGS. 1 and 2. Therefore, drive gear 45
rotates counterclockwise in the figure. When the drive gear 45 rotates 180' counterclockwise (that is, rotated 90 degrees counterclockwise from the initial state shown in FIGS. 1 and 2), the detection switch 51a or 51b is activated again. Then, the drive motor 39 and therefore the drive gear 45 stop, and at the same time the drive motor 39 and therefore the drive gear 45 stop, and at the same time the drive motor 93 starts again.

9, the counterclockwise direction 1 of the drive gear 45
By the rotation of 80 degrees, the slide plates 52 and 53 on both sides slide forward and move from the position shown by the two-dot chain line to the position shown by the one-dot chain line in the figure.

By rotating the first half of the drive gear 45 counterclockwise by 90 degrees,
The link 55 returns to its original initial position again, and the upper and lower support mechanisms that support the turntables 13 and 14 are also closed for the second time)
The state shown in FIG. 2 is returned to the state shown in FIG.

Here, the disk 9 has a diameter of 25CI11 or 30CI.
Il, the center hole of the disk fits with the spindle 35 of the turntable 14, and the EP disk (diameter 17CIIl) provided on the turntable 13
The adapter 29 for
stored inside. Also, if the disk 9 is an EPW (described above), the center hole of the disk will fit with the adapter 29.

In addition, regardless of the diameter of the disc 9 mentioned above, each rubber sheet 13b of both turntables 13 and 14
The disk 9 is in contact with the disk 9 and 14b.
is positioned at a predetermined performance position by the spindle 35 or adapter 29.

As the drive gear 45 rotates counterclockwise by 90 degrees in the latter half, the clamp lever 887 moves toward the rear cam portion 52 of the slide plate 52.
f, it is moved to the left against the pressing force of the coil spring 88, and moves from the position indicated by the solid line in FIG. 9 to the position indicated by the dashed line. Therefore, the cam member 79 of the carriage 65 is moved to the left by the clamp lever B87 against the pressing force of the coil spring 81, the clamping members 69 and 70 are opened, and the clamping state of the disc 9 is released. .

On the other hand, as is clear from FIG. 14 (ω or mountain), as the drive gear 45 rotates by 90° in the latter half, the drive lever B49 connected to the drive gear 45 and the cam plate 1
53 move to the left and right, respectively. Then, the cam parts 49C and 153b formed on the drive lever B49 and the cam plate 153 respectively engage with the protrusions 149b and 150b provided on the upper and lower guide members 149 and 150, respectively, and the guide parts of both guide members 149a and 150
Since the guide members a are separated from each other, both guide members are in a curved state.

Further, as shown in FIG. 15, when the slide plates 52 and 53 slide forward as the drive gear 45 rotates by 90 degrees, the rear cam portion 52f of both slide plates 53- and 53c engage with positioning plates 135 and 136 on both sides forming part of the disk transport means (described above). By this engagement, both positioning plates are moved forward (however, only the right side is shown in FIG. 15).

When the positioning plates 135 and 136 move forward, the shafts 135C and 13 at the front ends of the positioning plates 135 and 136 move forward.
6C slides in each of the cam holes 5e and 6b of the horizontal chassis 5 and 6, and operates so that the front ends of the two wheels, that is, the two positioning plates, move away from each other. Therefore, both shafts 135
Index lever 131 engaged with C and 136C
and 132 are also driven to swing about the support shafts 131a and 132a, respectively, so as to separate from each other. When the index lever 131 swings in this manner and changes from the state shown by the solid line to the state shown by the two-dot chain line in FIG. 15, the shaft engaged with the rear end engaging portion 131d of the index lever 124b, therefore, the contact plate 124 swings by a predetermined amount in the counterclockwise direction in the figure. However, the reason why the shaft 124b is engaged with the rear end engagement portion 131d is because it is assumed that the outer diameter of the disk 9 is 25CIl+, as described above.

As described above, as the abutting plate 124 swings counterclockwise in the figure, the guide plate 120 also swings in the same direction, and the engagement shaft 120a of the guide plate 120 and the outer periphery of the disk 9 are connected. The engaged state is released. Also, the first
Although not shown in Figure 5, the left abutment plate 125
As the index lever 132 swings, the guide plate 121 is also swung by a predetermined amount in the clockwise direction in FIG.
The engagement state between a and the outer periphery of the disk 9 is released.

As mentioned above, the left and right guide means (
(above) is driven by the disk conveying means so that the respective swing angular positions of both guide stages are changed in opposite directions.

On the other hand, as is clear from FIGS. 16(0) and (2), when the slide plate 52 starts moving forward, the front end of the slide plate engages with the engagement shaft 143a protruding from one end of the left and right shutter levers 143. When engaged, the shutter lever is rotated against the pressing force of the coil spring 145.

Therefore, the left and right doors 141 and 142 are driven via the shutter lever 143, the viewing windows 7b and 7C are opened, and the two doors close the slot 12a.

When the drive gear 45 rotates 180° counterclockwise and the detection switch 51a or 51b is activated, the drive motor 93 starts counterclockwise again (in FIG. 1) as described above, and the carriage 65 further rotates. Move backwards. Immediately before the carriage 65 reaches the rearmost position, the right rear end of the carriage engages with the detection switch 83b, activating the detection switch, and the drive motor 93 and therefore the carriage 65 are stopped F. In this state, disc playback begins.

When the performance ends and an operation signal for returning the disc 9 to the slot 12a is issued by the performance end detection means (not shown), the drive motor 93 starts clockwise in FIG. starts moving forward. The carriage 65 moves by a predetermined amount and the disk 9
When the carriage 65 reaches the position where the clamping state is released, the carriage 65
The upper detection switch 82 engages with the outer periphery of the disk 9 and is activated, and the drive motor 93 and therefore the carriage 65 are stopped. At the same time, the drive motor 39 starts clockwise in FIG. 1, and the drive gear 45 rotates clockwise in the figure.

When the drive gear 45 has rotated 180 degrees in that direction, the detection switch 51a or 51b is activated, and the drive motor 39,
Therefore, the drive gear 45 stops.

Further, when the drive motor 39 stops, the drive motor 93 starts again clockwise.゛As described above, as the drive gear 45 rotates clockwise in 1806, the sliding plates 52 and 53 on both sides slide rearward, and move from the position shown by the dashed line in FIG. Move to the indicated position.

=57- The first half of the 180° clockwise rotation of the drive gear 45 is 90
As the slide plates 52 and 53 move rearward due to the rotation of .degree., the positioning plates 135 and 136 move rearward due to the pie spacing caused by the coil spring 137.
Shafts 135C and 1 of each front end of both positioning plates
36c are brought close to each other by respective cam holes 5e and 6e of the transverse chassis 5 and 6. Moreover, the both shafts 135c
and 136C are the index levers 13 on both sides engaged.
1 and 132 are also driven closer to each other. Therefore, both the contact plates 124 and 125 in a state of being engaged with the rear end engaging portions 131d and 132d of both index levers, and therefore the guide plates 120 and 121]
It is caused to swing counterclockwise and clockwise in FIG. 1 by the swing spring 126, respectively.

Therefore, each engagement shaft 1 of both guide plates 120 and 121
20a and 121a reengage the outer periphery of disk 9.

Further, the upper and lower guide members 149 and 150 are brought into a closed state by the movement of the slide plates 52 and 53 accompanying the rotation of the first half 90 degrees clockwise, and the recording of the disc 9 is carried out by the holding members 69 and 70 of the carriage 65. The face edges are clamped again. Furthermore, the doors 141 and 142 are
The viewing windows 7b and 7C are closed and the slot 12a is opened.

By the clockwise rotation of the drive gear 45 by 90° in the latter half, the upper and lower turntables 13 and 14 are brought into the open state through a process reverse to the above-described closing operation.

When the drive gear 45 completes its 180° clockwise rotation and the detection switch 51a or 51b is activated, the drive motor 93 starts again clockwise in diagram M1 as described above, and the carriage 65 moves further forward. Keep moving.

While the carriage 65 is moving forward, the carriage 65
The respective rear end engaging portions 66f and 67f of the L-shaped members 66 and 67, which are the constituent members of 5, engage with the shafts 127b and 128b at the front ends of the reset plates 127 and 128,
Both reset plates are pulled forward. Therefore, the plates 124 and 125, and therefore the guide plate 12
0 and 121 are swung against the biasing force of the coil spring 126, and are each reset to the initial state shown in FIG. In addition, the guide plates 124 and 12
The index levers 131 and 132 on both sides, which are engaged with the right and left ends of the index lever 5 via shafts 124a and 125a, respectively, are moved rearward and reset by the swinging motion of both guide plates.

At the same time, the discrimination levers 111 and 112 connected to both index levers are reset.

Immediately before the carriage 65 reaches the frontmost position, that is, the initial position shown in FIG. , the carriage 65 stops. In this state, the disk 9 protrudes from the slot 12a.

At the same time as the drive motor 93 stops, the drive motor 39
starts counterclockwise, and the drive gear 45 starts rotating in the same direction. When the drive gear 45 rotates 906 counterclockwise, the detection switch 51a or 51b is activated, and the drive motor 39 and therefore the drive gear 45 are stopped. By the 90° counterclockwise rotation of the drive gear 45, the slide plates 52 and 53 on both sides are reset to the initial position shown in FIG. As a result, the turntables 13 and 1
4 is in the closed state following the above-described process, and similarly, the clamping members 69 and 7o of the carriage 65 are in the open state. After that, the disc 9 is removed.

In addition, in FIG. 16 (el and (f) c), doors 141 and 14
2 (however, only the right door 141 is shown in the figure) closes the slot 12a of the slot member 12, the disk 9 is accidentally caught between the upper edge of the slot 12a and both doors. It shows.

Even if the above-mentioned two doors are operated with the disk 9 being held in this way, the coil spring 146 interposed between the shutter lever 143 and the two doors is stretched and a buffering effect is produced. The disk recording surface is not damaged by the door 61 or the slot member 12.

As described in detail above, in the autoloading disc player according to the present invention, the disc transport means, which are disposed on both sides of the disc transport path, cooperate with and guide the disc so that the disc is transported along the transport path. Guidance means are provided to do so.

That is, in the autoloading disc player according to the present invention, the disc is moved in at least one direction by the guide means so as to approach a predetermined playing position. Therefore, the disk transporting means necessary for transporting the disc from the slot to the vicinity of the predetermined performance position only needs to be transported in a single direction, for example, in a direction parallel to the turntable, and the structure of the transporting means is necessarily limited. This allows the player to simply hit the ball in a smaller size, thereby reducing the size of the player as a whole and reducing strikes.

Further, in the autoloading disc player according to the present invention, the guiding means is driven by the disc diameter determining mechanism according to the disc diameter, and during the disc playing, the disc transporting means determines the state of engagement between the guiding means and the disc. is being released.

That is, in the autoloading disc player according to the present invention, since the disc diameter determining mechanism and the disc transport means are used as a drive source for the guide means, a special drive source for driving the guide means is required. do not need. Therefore, it is easier to reduce the size and cost of the entire player.

[Brief explanation of drawings]

FIG. 1 is a plan view of the internal structure of an autoloading disc player according to a first embodiment of the present invention, FIG. 2 is a partially detailed plan view of the internal structure, and FIGS. 3, 4, and 5 are FIG. 6 is a perspective view showing the arrangement of the housing and chassis, and FIG. 7 (ω, (b) and (C) is a perspective view of the carriage and rail. , Fig. 8 (ω and peaks) is a diagram showing a part of the disc diameter determination mechanism, Fig. 9 is a diagram showing a part of the operation of the disc transport means, and Fig. 10 (a) and rt++ are diagrams showing a turntable and its Figures showing the operation of the support mechanism, Figures 11 (a), (C) and (small) are diagrams showing the operation of a part of the disk diameter discrimination mechanism, Figure 12 is a part of the disk diameter discrimination mechanism. Figures 13 (ω, mountain) and (
C) is a diagram showing the state in which the disc is guided by the guide means, Figures 14 (a) and (C) are diagrams showing the operation of the guide member and its surrounding members, and Figures 14 (14) and 14 (d) are respectively the 14th Fig. 15 is a diagram showing the release operation of the engagement state between the disk outer periphery and the guide means, and Fig. 16 (a), (C) and (e) are the right side views of the figures (al and (C)). Diagrams showing the operation, FIG. 16 (bj, (ri and rj <f+) are the right side views of FIG. 16(a), (C1 and (el), respectively. Explanation of symbols of main parts 2.3... ... Vertical chassis 4 ... Housing 5, 6 ... Horizontal chassis 6b, 6c ... Latch claw 7 ...
・Front panel 7b, 7c...Peep window 8
・・・Rear panel 9・・・Disc
12...Slot member 12a...Slot 13.14...Turntable 15.16...
...Support mechanism 17.18...Angle member 19.20...Turntable plate 21.
...Click spring 22.30, 77.81, 85, 88, 102, 115
,126,137,145,146°152...
・Coil spring 25.39.93... Drive motor 26.42,
98, 105...Belt 27...Reinforcement member 28...Sliding shaft 29...Adapter 29a, 35b...Engaging protrusion 33a,
33b, 34...Bearing member 35...
...Spindle 38.92...Base plate 40,94...
...Small pulley 41.97,101,104...
Pulley 43, '99... Gear 44.56, 100, 144, 151... Shaft 4
5... Drive gear 46... Drive lever A -65-' 48.50... Link member 49... Drive lever B 51a, 51b, 82. 83a, 83b, 106, 13
3,134...Detection switch 52.53...Slide plate 55...Link 57.58...
- Swinging member 59...Engagement recess 63...
...Rail 65...Carriage 66.67...Single-shaped member 68...Column-shaped connecting member 69, 70...Pinching member 71, 76. ...Ring-shaped member 71a...
...Friction surface 79...Cam member 79a,
79h...Cam groove 84...Clamp lever A s2...Clamp lever B O2...Gear base member 97a...Gear part 99a. ...Small gear 101a ...Gear portion 111, 11
2...Discrimination lever 113.122...
Support shaft 66-114...Synchronization lever 120, 121...Guide plate 124.12
5...Abutment plate 127.128...
・Reset plate 131.132... Index lever 135.136... Positioning plate 141.142... Door 143... Shutter lever 149.150... ...Guide member 153...
...Camplate Applicant Pioneer Co., Ltd. Agent Patent Attorney Motohiko Fujimura 67- JP 59-144064 (25) JP 59-144064 (27) Fig. 13

Claims (2)

[Claims] (1) a housing provided with a slot into which a disc is inserted; a playing means provided within the housing;
an autoloading disc player having a disc transport means for transporting the disc near a predetermined performance position, the disc player being disposed on both sides of the disc transport path so that the disc is transported along the transport path; a pair of guide means for guiding the disk; and a disk diameter determining mechanism that engages with the outer periphery of the disk at the same time as the guide means guides the disk to determine the diameter of the disk, the disk diameter determining mechanism The guide means is driven so that the distance between the guide means matches the outer diameter of the disk, and the guide means engages with the outer periphery of the disk being transported, thereby cooperating with the disk transport means. 2. An autoloading disc player, characterized in that said disc conveying means is configured to release the engagement between said disc and said guiding means during a disc play. (2) The pair of guide means are swingably supported by support shafts extending in a direction substantially perpendicular to the recording surface of the disk, and the disk transport means rotates the swing angular positions of the guide means in opposite directions. An autoloading disc player according to claim 1, wherein the autoloading disc player is adapted to be driven so as to cause the disc to change.