JPH07220361A - Transferring device for recording medium - Google Patents

Abstract

PURPOSE:To simplify the structure of a recording medium transferring device by keeping an engagement or release state of holding for a positioning pin against a recording medium which interlocks a transfer action when it engages one of paired engagement grooves formed along a transfer path. CONSTITUTION:A transfer shift block 73 has a positioning pin 110 which selectively engages a positioning engagement groove 77 or 78. When the pin 110 is engaging the groove 77, an engagement lever 100 is set at a position where a disk cartridge 320 is held and therefore transferred between a storing magazine and a disk drive part. Meanwhile the pin 110 gets out of both grooves 77 and 78 when the block 73 is positioned at the side of the storing magazine. Thus a plunger 94 is actuated to move the pin 110 to a position where the pin 110 engages the groove 78. Therefore the lever 100 releases the cartridge 320 and remains in the storing magazine.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium conveying device.

[0002]

2. Description of the Related Art Conventionally, there has been proposed a disc player device configured as a so-called disc changer device. This disc changer device is configured to be able to accommodate a plurality of disc cartridges as recording media, and is configured to record or reproduce an information signal with respect to a disc cartridge selected from the accommodated disc cartridges. ing.

This disc changer device has a disc cartridge magazine for accommodating the plurality of disc cartridges in a laminated form. Further, this disc changer device can increase the number of disc cartridges that can be accommodated by incorporating a plurality of disc cartridge magazines therein. Then, this disc changer device records an information signal to the selected disc cartridge,
Alternatively, it has a disk drive unit which serves as a recording / reproducing unit for reproducing.

This disc changer device is
It has a movement operation mechanism and a transport mechanism for selecting a disk cartridge to be mounted in the disk drive unit from the plurality of disk cartridges.

That is, in a disk changer device having a plurality of disk cartridge magazines, one of the disk cartridge magazines is selectively operated by moving each of the disk cartridge magazines by a moving operation mechanism. By selecting the position corresponding to, it is possible to select the magazine for the disk cartridge. As this movement operation mechanism, a mechanism in which the plurality of disk cartridge magazines are arranged on a rotatable turntable and the turntable is rotated by a drive motor can be considered.

Further, the disc drive section can select a disc cartridge in the disc cartridge magazine by transporting the disc cartridge magazine to the disc cartridge magazine in the stacking direction of the disc cartridges. it can.

The disk drive section has a recording medium carrying mechanism for pulling out the disk cartridge from the disk cartridge magazine and mounting the disk cartridge in a recordable or reproducible state. This recording medium transport mechanism
It is necessary to have a function of transporting the disc cartridge at least in a direction along the main surface portion of the disc cartridge from the magazine for the disc cartridge to the mounting position of the disc drive unit. It is conceivable that such a recording medium transporting mechanism includes an engaging mechanism that engages with the disc cartridge and a moving operation mechanism that moves and operates the engaging mechanism.

[0008]

By the way, in the recording medium carrying mechanism for pulling the disc cartridge into the disc drive portion in the disc changer device as described above, the engaging mechanism is moved and operated by the moving operation mechanism. In conjunction with this, it is necessary to engage and disengage the disc cartridge.
Further, the disc cartridge magazine may be provided with an engagement member for preventing the disc cartridge from falling off. In such a case, the engagement mechanism may be provided with the engagement mechanism. It is also necessary to release the engagement of the disc cartridge with the engagement member of the above.

Therefore, the above-mentioned engagement mechanism has a complicated structure, and it becomes difficult to maintain the reliability of the operation as the structure becomes complicated.

Therefore, the present invention has been proposed in view of the above-mentioned circumstances, and the engagement and the disengagement of the recording medium are interlocked with the conveying operation of the recording medium without complicating the configuration. Therefore, the present invention is applied to a disc changer device, and a suitable recording medium conveying device is provided.

[0011]

In order to solve the above-mentioned problems and achieve the above-mentioned object, a recording medium conveying apparatus according to the present invention comprises a moving member which is movably supported in a recording medium conveying direction, Selectable as one of the positioning engagement grooves, which is composed of a pair of parallel positioning engagement grooves formed along the movement path of the movement member and at least one member movably disposed on the movement member. Engagement having a positioning pin that is mechanically engaged, and an engaging portion that is moved between a position that engages with the recording medium and a position that releases the engagement with the recording medium according to the position of the positioning pin Means and the engaging portion by operating the engaging means when the positioning member is arranged so as to face the terminal end of the positioning engaging groove and the moving member is moved out of the positioning engaging groove. Engaging the recording medium, or Those comprising an operating mechanism for causing the release of the engagement of the engagement portion of the recording medium.

According to the present invention, in the above-described recording medium conveying device, the operation mechanism has an operation arm portion that abuts on the positioning pin and moves the positioning pin, and the operation arm is made of an elastic member. The positioning pin is elastically biased in a direction in which the engaging portion moves in a direction in which the engagement portion is engaged with the recording medium, and the positioning pin is resisted by the electromagnetic drive device against the biasing force of the elastic member. Is operated to move in a direction in which the engaging portion is released from the engagement with the recording medium.

Further, according to the present invention, in each of the above-described recording medium conveying devices, each positioning engagement groove is arranged along the conveying path of the recording medium so as to guide the movement of the recording medium. It is supposed to be formed in.

Further, according to the present invention, in the recording medium carrying device in which each of the positioning engaging grooves is formed in the guide rail member, a wire member facing the guide rail member and parallel to the guide rail member is provided. The wire member cooperates with the guide rail member to guide the movement of the recording medium.

[0015]

In the recording medium conveying device according to the present invention, the moving member supported so as to be movable in the direction in which the recording medium is conveyed, and the pair of parallel positioning members formed along the moving path of the moving member. A mating groove is provided. A positioning pin, which is formed on at least one member movably with respect to the moving member, is selectively engaged with one of the positioning engaging grooves, and the positioning pin is provided on the moving member. Engaging means is provided that has an engaging portion that is moved between a position for engaging the recording medium and a position for releasing the engagement with the recording medium according to the position of the pin. Further, when facing the terminal end of the positioning engagement groove, when the moving member is moved and the positioning pin comes out of the positioning engagement groove, the engaging means is operated to operate the engaging portion. Engagement with recording medium, or
An operation mechanism for disengaging the engagement portion from the recording medium is provided.

Therefore, in this recording medium conveying apparatus, the engagement means determines whether or not to engage the recording medium, depending on which positioning engagement groove the positioning pin engages with. , Reliable switching of operation is performed.

Further, in the above-mentioned recording medium conveying device,
The operation mechanism has an operation arm portion that abuts the positioning pin to move the positioning pin, and the operation arm causes the engaging portion to engage the positioning pin with the recording medium by an elastic member. And an electromagnetic drive device that resists the biasing force of the elastic member and causes the engagement portion of the positioning pin to disengage from the recording medium. When it is decided that the electromagnetic driving device is operated or deactivated, the engaging means is engaged with the recording medium. Whether or not it can be surely performed.

In each of the above-described recording medium conveying devices, each positioning engagement groove is formed in a guide rail member arranged along the recording medium conveying path for guiding the movement of the recording medium. If the recording medium reproducing device is provided, it is possible to simplify the device configuration of the recording / reproducing device including the recording medium conveying device.

Further, in the recording medium conveying device in which each of the positioning engagement grooves is formed in the guide rail member, a wire member facing the guide rail member and parallel to the guide rail member is provided. When the movement of the recording medium is guided in cooperation with the guide rail member, the simplification and downsizing of the device structure of the recording / reproducing device including the recording medium conveying device can be achieved. Can be planned.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described below in the following order with reference to the drawings. [1] Configuration of disk cartridge (FIGS. 53 to 5)
6) [2] Outline of configuration of disc changer device (Fig. 1) [3] Configuration of magazine for disc cartridge (Fig. 11)
17 to 17) [4] Configuration of turntable mechanism (FIGS. 2 to 10) [5] Configuration of disk drive unit (FIGS. 18 to 43) (1) Configuration of drive chassis (2) First recording medium conveyance Structure of Mechanism (3) Structure of Second Recording Medium Conveying Mechanism (4) Structure of Lifting Mechanism [6] Structure of Elevator Mechanism (FIGS. 44 to 52) [7] Operation of Disk Changer Device (FIGS. 1 to 5)
6)

In this example, the present invention is applied to a disc changer device. This disc changer device is a recording / reproducing disc for recording and reproducing information signals using a recording / reproducing disc cartridge constituted by accommodating a magneto-optical disc in a cartridge, and a reproduction-only disc constituted by accommodating an optical disc in the cartridge. A disc player device that reproduces an information signal using a cartridge as a recording medium. The disc player device is capable of accommodating a plurality of disc cartridges and is configured to record or reproduce the information signal by selecting from the disc cartridges. It is a device.

[1] Structure of disk cartridge (FIG. 5)
3 to FIG. 56) A magneto-optical disk used in this disk changer device is a disk substrate made of a transparent synthetic resin material such as polycarbonate having a diameter of about 64 mm.
A signal recording layer made of a magnetic material is deposited and formed. This signal recording layer is locally heated to a temperature higher than the so-called Curie temperature by means such as irradiation of a focused laser beam, and an external magnetic field is applied to this heated portion to write an information signal. It The information signal thus written irradiates the signal recording layer with a linearly polarized light beam such as a laser beam, and detects the rotation of the polarization direction of the reflected light beam of the light beam due to the so-called Kerr effect in the signal recording layer. Therefore, it can be read.

The optical disc used in the disc changer device is constructed by depositing a reflective layer made of a metal material such as aluminum on a disc substrate similar to the disc substrate of the magneto-optical disc. . On the disc substrate of this optical disc, fine pit rows corresponding to the information signals are formed by means such as injection molding. The information signal written on the optical disc is obtained by irradiating the pit train with a coherent light beam such as a laser beam, and detecting a change in the light amount of the reflected beam of this beam due to diffusion or interference in the signal recording layer. Can be read.

The magneto-optical disk and the optical disk are the cartridge 3 as shown in FIGS.
05 and 316 are rotatably housed to form a disk cartridge. The cartridge 305 that houses the magneto-optical disk and constitutes the recording / reproducing disk cartridge 320 has a thin casing shape having a rectangular main surface portion whose one side substantially corresponds to the diameter of the magneto-optical disk. It is configured. As shown in FIG. 53, this cartridge 305 has a magnetic head opening 323 for exposing a part of the signal recording surface of the magneto-optical disk to the outside on the main surface on the upper surface side. Further, as shown in FIG. 55, this cartridge 305 has an optical pickup opening 322 at a position facing the magnetic head opening 323 on the main surface on the lower surface side. Each has a chucking opening 313 in the central portion. This recording / reproducing disc cartridge 320
Is inserted and mounted in the front direction with respect to the disc changer device as shown by an arrow A in FIGS. 53 and 55.

The above-mentioned recording / reproducing disc cartridge 3
In the cartridge 305 of No. 20, the magnetic head opening 323 and the optical pickup opening 322.
Can be opened and closed by the shutter member 306. The shutter member 306 has these openings 323.
A shutter plate portion corresponding to 322 and parallel to each other, and a connecting portion connecting one end sides of these shutter plate portions with each other are made of a synthetic resin material or a metal material.
It is constructed integrally. This shutter member 306 is
The connecting portion is slidably supported by a support groove portion 307 formed on one side of the cartridge 305. That is, the shutter member 306 slides rearward along one side of the cartridge 305 to open the openings 323 and 322, and slides forward from the rear side to return to the initial position. Then, the shutter plate portions close the openings 323, 322.

The cartridge 316, which constitutes the read-only disc cartridge 321 by accommodating the optical disc, is in the form of a thin casing having a rectangular main surface portion whose one side substantially corresponds to the diameter of the optical disc. It is configured. As shown in FIG. 54, this cartridge 316 does not have an opening in the main surface portion on the upper surface side. As shown in FIG. 56, the cartridge 316 has an optical pickup opening 322 on the main surface on the lower surface side, and a chucking opening 313 at substantially the center of the main surface on the lower surface side. There is. The read-only disc cartridge 321 is inserted and mounted in the front direction of the disc changer device as shown by an arrow A in FIGS. 54 and 56.

The reproduction-only disc cartridge 321
In the cartridge 316, the optical pickup opening 322 can be opened and closed by a shutter member 317. The shutter member 317 has a shutter plate portion corresponding to the optical pickup opening 322 and a support portion provided on one end side of the shutter plate portion, and is integrally made of a synthetic resin material or a metal material. Is configured. The shutter member 317 has the support portion slidably supported by a support groove portion 307 formed at one side portion of the cartridge 316. That is,
When the shutter member 317 slides backward along one side of the cartridge 316 to open the optical pickup opening 322, and slides forward from the rear side to return to the initial position. The shutter plate section closes the optical pickup opening section 322.

The shutter members 306 and 317 have
A shutter closing hole 308 is opened at a substantially central position of the connecting portion or the supporting portion toward the side. The shutter closing hole 308 is for engagement with a member for closing the shutter members 306 and 317 in the disc changer device.

A circular chucking hole 304 is formed at the center of the magneto-optical disc and the optical disc. The chucking hole 304 is closed by a chucking plate 302 from the upper surface side. This chucking plate 302 is made of iron or stainless steel,
The chucking hole 30 is made of a magnetic metal material.
4 is formed in a disk shape having a diameter substantially corresponding to 4. These chucking holes 304 and chucking plate 30
2 faces the outside of each of the cartridges 305 and 316 through the chucking opening 313.

The above-mentioned cartridges 305 and 31
A pair of front side and rear side positioning holes 309 and 310 are formed in the lower main surface portion of 6. The front side positioning hole 309 has the opening 322 for the optical pickup.
Is located in the vicinity of the edge of the main surface portion on the front side, and is formed in an oval shape with the major axis direction being the front-rear direction. Also,
The rear side positioning hole 310 is located in the vicinity of the edge of the rear side main surface of the optical pickup opening 322, and is formed in a circular shape.

Further, each of the above-mentioned cartridges 305, 316
A plurality of identification holes 324 are formed near the edge portion on the other side of the lower main surface portion rear side. These identification holes 324
Is for identifying the type and state of the disks housed in the cartridges 305 and 316, for example, whether or not information signals can be recorded. In the cartridge 305 of the recording / playback disk cartridge 320, a save notch 314 is provided in the rear side surface portion corresponding to the identification hole 324. This save notch 31
4 is moved and operated to identify the identification hole 324.
One of the two is moved back and forth, and the depth of the identification hole 324 is changed to switch the identification state of the recordability of the information signal. Further, a pair of engagement recesses 3 are formed at the edges on both sides of the front side of the lower main surface of each of the cartridges 305 and 316.
12, 312 are formed.

The above-mentioned recording / reproducing disc cartridge 3
In the No. 20 cartridge 305, a magneto-optical disc identifying recess 311 is formed at the front side edge of the lower main surface portion. In addition, the reproduction-only disc cartridge 32
In the cartridge 316 of No. 1, the optical disc identification concave portion 318 is formed at the front side edge portion of the lower main surface portion. The magneto-optical disc identifying concave portion 311 and the optical disc identifying concave portion 318 have different depths from the lower main surface portion. Due to the difference in depth, whether the accommodated disc is the magneto-optical disc or the optical disc. It is designed to be able to identify.

[2] Outline of Configuration of Disc Changer Device (FIG. 1) As shown in FIG.
A disk cartridge 3 selected from the disk cartridges 320 and 321 is configured so as to accommodate zero of the disk cartridges 320 and 321.
The disc player device is configured to record and reproduce information signals with respect to 20, 321.

This disc changer device has a base 1
have. The base 1 is formed in a substantially rectangular flat plate shape, and has a plurality of legs 2 at four corners of the lower surface.
Side walls are provided in the peripheral portion of the upper surface of the base 1. The portion surrounded by the side wall portion is a circular concave portion 4. The concave portion 4 is open to the outside on the front side through a notch portion 3 provided on the front side portion of the side wall portion.

Inside the concave portion 4, a main chassis 13 is fixedly disposed on the base portion 1. At the center of the upper surface of the main chassis 13,
The pillar 7 is provided so as to project upward. The cover member 5 is provided on the upper end side of the column 7 via the bearing member 6.
As shown by an arrow C in FIG. 1, it is rotatably attached around the column 7. The cover member 5 has a disk-shaped top plate portion having a size corresponding to the concave portion 4 and a peripheral wall portion hanging downward from the peripheral portion of the top plate portion, and the upper side is closed and the lower side is closed. It is formed in a cylindrical shape with an open side. The cover member 5 is integrally formed of a transparent material such as a synthetic resin material or a glass material. The bearing member 6 is attached to a central position of the top plate portion of the cover member 5, and is rotatably supported by the support column 7. The cover member 5 closes the concave portion 4 from above.

The cover member 5 has an opening 12 in a part of the peripheral wall portion. The cover member 5 includes the support 7
When the opening 12 is rotated with respect to the cutout portion 3 so that the opening 12 is located at a position corresponding to the cutout portion 3, the concave portion 4 is opened outward on the front side. As described above, through the opening portion 12 located at a position corresponding to the cutout portion 3, an arrow A and an arrow B in FIG.
As shown in FIG.
1 and the disc cartridge magazine 11 described later can be inserted and removed.

On the main chassis 13, an annular turntable 15 constituting a turntable mechanism is rotatably arranged, as will be described later. On this turntable 15, eight disc cartridge magazines 11 are arranged in a radial position and are detachably arranged. Magazines for these disc cartridges 11
Is the above-mentioned disc cartridge 3 of 10 sheets each
It is configured to be able to store 20, 321.

Then, on the main chassis 13,
A pair of disk drive units 8, 8 supported by the support column 7 via an elevator mechanism, which will be described later, which is a transfer device, is disposed. These disc drive units 8 and 8 form a recording / reproducing unit of a disc changer device which is a disc player device. These disk drive units 8 and 8 are moved up and down along the support column 7 by the elevator mechanism and the rotational movement of the disc cartridge magazines 11 by the turntable mechanism.
Each one disk cartridge 320, 321 is selected. These disc drive units 8 and 8 pull out the selected disc cartridges 320 and 321 from the disc cartridge magazine 11 and mount them in the disc drive unit 8.
Information signals are recorded on or reproduced from 20, 321 discs. As will be described later, the disk drive unit 8 is configured to include a spindle motor for rotating the disk, an optical pickup device for writing and reading an information signal to and from the disk, and a magnetic head device.

[3] Configuration of Disc Cartridge Magazine (FIGS. 11 to 17) As shown in FIG. 11, the disc cartridge magazine 11 has a housing portion whose front and rear sides are open. ing. The housing portion is configured to have a substantially cubic shape, and the inner side portion serves as a storage portion 39 in which a plurality of disk cartridges 320 and 321 are stored. The top plate part and the bottom plate part of the housing part have a size and a shape which substantially correspond to the main surface parts of the respective disk cartridges 320 and 321. Storage section 39 of this housing section
Has a height approximately corresponding to the thickness of 10 stacked disc cartridges 320 and 321.

As shown in FIG. 12, a plurality of shelf-like protrusions 43 are provided on the inner wall portions on both sides of the storage portion 39, respectively. These shelf-like protrusions 43 are formed in the horizontal direction at equal intervals and parallel to each other from the front end to the rear end of the casing. The disk cartridges 320 and 321 are
One shelf-shaped protrusion 43 of the inner wall portion on one side of the storage portion 39 and one shelf-shaped protrusion 43 of the inner wall portion on the other side of the storage portion 39 facing the one shelf-shaped protrusion 43. Both side parts are placed across and held in a horizontal state. In the storage portion 39, ten shelf-like protrusions 43 are formed on the inner wall portions on both sides so that ten disc cartridges 320 and 321 can be held in a horizontal state.

The disk cartridges 320 and 321
Is inserted into the storage section 39 from the rear side of the housing section and placed on each of the shelf-like projections 43, 43. At this time, the disk cartridges 320, 32
As shown by the arrow A in FIGS. 53 to 56, 1 is inserted and operated with the front end edge part on the front side. The disc cartridges 320 and 321 are provided in the storage section 39.
The discharge operation is performed from the inside toward the front side or the rear side of the housing section.

A stopper member 52 is provided on the rear side portion of the casing. The stopper member 52 is a rod-shaped member, and its upper end side and lower side are bent in a hook shape. The stopper member 52 has an upper end rotatably supported by the top plate of the casing and a lower end rotatably supported by a bottom plate of the casing. As indicated by an arrow G, it is rotatable with respect to the casing. When the stopper member 52 is rotated with respect to the housing portion, the stopper member 52 enters the movement path of the disk cartridge 320 or 321 that is inserted into the housing portion from the rear side, and A moving operation is performed over a position where the vehicle exits the moving route.

The stopper member 52 is a disc cartridge 320 which is inserted into the casing from the rear side.
When the position of the disk cartridge 320, 321 is reached, the rear ends of the disk cartridges 320, 321 inserted in the housing 39 of the housing are locked, and the housing of the disk cartridges 320, 321 is locked. Prevents it from falling backward from the body.

A plurality of engaging members 45 are provided on the front side portion of the casing. This engaging member 45
Engages with the disc cartridges 320, 321 inserted into the casing from the rear side, and engages with the disc cartridges 320, 321 by the disc drive unit 8 as described later. Is configured to be released. This engaging member 45
10 pieces are arranged corresponding to the shelf-like projections 43 on one side so as to correspond to the disk cartridges 320 and 321 mounted on the shelf-like projections 43 and 43, respectively. Has been done. These engaging members 45 are accommodated and arranged in an engaging member accommodating portion 47 that is formed so as to bulge outward at the front side portion of the side wall portion on one side of the housing portion. .

That is, each of the engaging members 45 is rotatably supported at the base end side by the support shaft 46 vertically provided in the engaging member accommodating portion 47, and at the tip end side of the side wall of the housing portion. The notch 44 is formed at 10 positions corresponding to each of the shelf-like protrusions 43, and is inserted into the storage portion 39. The engaging members 45 are configured such that their front ends can move to the rear side, which is the side facing the insertion direction of the disk cartridges 320 and 321 in the housing.

A leaf spring member 49 is attached to the outer side of the engaging member housing 47. This leaf spring member 4
Reference numeral 9 denotes a plate body made of a spring material, and has a plurality of (10) plate spring portions 50 that are cut and raised in a strip shape and serve as elastic biasing members so as to correspond to the respective engaging members 45. There is.
Each of these leaf spring portions 50 enters into the engaging member accommodating portion 47 through a plurality of (10 places) slits 51 formed in the side wall portion of the engaging member accommodating portion 47. As shown in FIG. 14, these leaf spring portions 50 elastically bias the engaging members 45 so as to correspond to each other. Each of the engaging members 45 is rotationally biased by the leaf spring portion 50 in a direction in which the front end side is the front side as shown by an arrow H in FIG. 14, and the front end side is inside the storage portion 39. It is positioned at the initial position when it entered. Each of the engaging members 45 has an abutting protrusion 54 on the base end side, and by abutting the abutting protrusion 54 on the inner wall portion of the engaging member accommodating portion 47, the aforesaid initial position is exceeded. It is designed not to be rotated. These engaging members 45 are inserted into the movement paths of the disk cartridges 320 and 321 which are inserted into the housing portion, and the leading ends of the engaging members 45 are inserted.

When the disc cartridges 320 and 321 are inserted into the accommodating portion 39, the engaging members 45 are located on one side of the tip ends of the disc cartridges 320 and 321 as shown in FIG. The corner is brought into contact with the tip 57. The front end portion 57 is a tapered surface that is inclined toward the rear side, that is, in the direction facing the front end portions of the disk cartridges 320 and 321 when the engaging member 45 is at the initial position.

When the disc cartridges 320 and 321 are further inserted into the engaging member 45,
The tip portion 57 is pressed by the disc cartridges 320 and 321, and as shown in FIG. 16, the tip portion is rotated against the biasing force of the leaf spring portion 50 as shown by an arrow J in FIG. The disc cartridges 320 and 321 are evacuated outside the movement loci. The disc cartridge 3
When the disc cartridges 320 and 321 reach a predetermined position in the storage portion 39 by further inserting the discs 320 and 321 to the front side, the front end portion 5 of the engaging member 45.
The engagement recess 312 of the disk cartridge 320, 321 faces the disk 7. At this time, the engaging member 45
17 returns to the initial position by the urging force of the leaf spring portion 50, as indicated by an arrow H in FIG.
The front end side is fitted into the disk cartridge 12, and the disk cartridge 3
20 and 321 are engaged.

The engaging member 45 engaged with the disc cartridges 320 and 321 in this manner prevents the disc cartridges 320 and 321 from moving forward. As will be described later, the engagement member 45 is pivoted rearward by the disc drive portion 8 against the biasing force of the leaf spring portion 50, thereby engaging with the disc cartridges 320 and 321. Cancel the match.
The disc cartridges 320 and 321 which have been disengaged by the engagement member 45 can be pulled out to the front side of the housing portion as indicated by an arrow K in FIG.

As described above, the magazine 11 for disc cartridges has ten disc cartridges 32.
It is possible to store 0 and 321 in a laminated form. And this magazine 11 for disk cartridges
13 and 14, by rotating the stopper member 52 outward from the rear portion of the storage portion 39, as shown by arrows A and B in FIG. , The disk cartridge 3 from the rear side
20, 321 can be inserted and removed. Also,
In this disc cartridge magazine 11,
By rotating the engaging member 45, the disk cartridges 320 and 321 can be taken out to the front side. This magazine for disc cartridge 1
When the disc cartridges 320 and 321 are returned to the first position from the front side, the engaging member 45 is rotatable rearward, and therefore, the disc cartridge 32.
0 and 321 are not blocked by the engaging member 45,
It is possible to return to the inside of the storage section 39.

A slide engagement groove 40 is formed on the bottom surface of the disc cartridge magazine 11. The slide engagement groove 40 is formed in the front-rear direction and is open at the front end side. The slide engagement groove 40 is provided in the disc cartridge magazine 11
For attaching to the turntable 15. That is, on the upper surface of the turntable 15,
As shown in FIGS. 3 and 4, the support members 36 are placed and fixed at eight positions at equal angular intervals. Sliding engagement protrusions 38 are formed on the upper surfaces of the support members 36. The slide engaging protrusion 38 enters the slide engaging groove 40 by the disc cartridge magazine 11 being mounted on the rear side of the support member 36 and slid forward, so that the slide engaging protrusion 38 slides. Engagement groove 40
Engage with. Due to the engagement of the slide engagement groove 40 and the slide engagement protrusion 38, the disc cartridge magazine 11 is turned with its front end side toward the center of the turntable 15, as shown in FIG. Table 1
Fixed on 5.

In this disc cartridge magazine 11, the disc cartridges 320, 3 are
21 is erroneously inserted, that is, when the engaging concave portion 312 is inserted in a direction in which the engaging concave portion 312 does not correspond to the engaging member 45, the engaging member 45 is inserted into the engaging concave portion 31.
Since the disc cartridge does not engage with 2, the disc cartridge is pulled out to the front side of the disc cartridge magazine 11, so that it can be easily recognized that the disc cartridge is erroneously inserted.

[4] Configuration of Turntable Mechanism (FIGS. 2 to 10) The turntable 15 constituting the turntable mechanism.
As shown in FIG. 2, each of the four is formed in a disk shape and is rotatably attached to the four corners of the main chassis 13.
The individual support rollers 14 support the outer peripheral edge portion at four positions, and are rotatable on the main chassis 13. Also, in the center of the turntable 15,
A through hole 34 is opened. The inner peripheral edge of the through hole 34 is supported by a plurality of support rollers 33 rotatably arranged on the main chassis 13.

The turntable 15 is rotated by a table turn motor 18 provided on the main chassis 13. The table turn motor 18
The turntable 1 on the main chassis 13
5 is attached via a motor mounting plate 17 to a support wall 16 that is vertically positioned inside the through hole 34. The support walls 16 also constitute an elevator mechanism to be described later, and a pair of the support walls 16 are vertically provided on the main chassis 13 so as to face each other in parallel. The motor mounting plate 17 is mounted on one of the pair of support walls 16.

A worm gear 19 is attached to the drive shaft of the table turn motor 18. The drive shaft of the table turn motor 18 is horizontal, that is, parallel to the upper surface of the main chassis 13.
The worm gear 19 meshes with a worm wheel 20 rotatably attached to the motor attachment plate 17 via a support shaft 21. The worm wheel 20 has a rotation axis in the vertical direction, and a spur gear portion 23 is integrally formed via a coaxial cylindrical portion that hangs downward. As shown in FIG. 3, the spur gear portion 23 is located below the main chassis 13 via a through hole formed in the main chassis 13.

On the lower surface side of the main chassis 13, in the vicinity of the spur gear portion 23, the main chassis 13 is provided.
A spur gear 24 is rotatably attached via a rotatable support shaft 25, which is located near the side edge of the. The timing belt 22 is stretched between the spur gear portion 23 and the spur gear 24. That is, when the table turn motor 18 is rotationally driven, the spur gear 24 is
It is rotated through the worm wheel 20, the spur gear portion 23, and the timing belt 22.

The support shaft 25 supporting the spur gear 24 penetrates the main chassis 13 and reaches the upper surface side of the main chassis 13. On the upper end side of this support shaft 25,
A drive intermittent gear 26 is attached. As shown in FIG. 7, the drive intermittent gear 26 has a drive side lock portion 27, which is a lock portion, at one location on the outer peripheral edge portion. The drive side lock portion 27 is formed in a convex cylindrical surface shape around the support shaft 25, and is formed over a predetermined angle range around the support shaft 25. A portion of the outer peripheral edge portion of the drive intermittent gear 27 other than the drive side lock portion 27 is a gear portion.

The driven intermittent gear 2 meshing with the driving intermittent gear 26 is provided on the lower surface of the turntable 15.
8 is coaxially attached to the turntable 15. The driven intermittent gear 28 is formed in an annular shape,
First to eighth driven side lock portions 29a, 29b, 29c, 29d, 29e, 29, which are a gear portion for engaging with the drive intermittent gear 26 and a plurality of lock portions, are provided on the outer peripheral edge portion.
f, 29g, and 29h are formed. The driven side lock portions 29a, 29b, 29c, 29d, 29e, 29
f, 29g and 29h are formed at equal angular intervals with respect to the center of the driven intermittent gear 28, that is, at 45 ° intervals. These driven side lock portions 29a, 29b, 29
c, 29d, 29e, 29f, 29g, and 29h are formed in a concave cylindrical surface having the same curvature as that of the drive-side lock portion 27, and are driven when the driven intermittent gear 26 meshes with the driven intermittent gear 26. Spindle 2 that supports the intermittent gear 26
It is located so that it may become a cylindrical surface centering on 5. That is, in the initial state, the drive-side lock portion 27 and the first driven-side lock portion 29a are in contact with each other over the entire surface and are fitted together, as shown in FIG.

In the driven intermittent gear 28, the driven side lock portions 29a, 29b, 29c, 29d, 29 are provided.
The number of teeth of the gear portion between e, 29f, 29g, and 29h is the number of teeth of the gear portion between the drive side lock portion 27 and the drive side lock portion 27 of the drive intermittent gear 26, that is, the drive intermittent gear. It is made equal to the total number of teeth of 26. That is, when the drive intermittent gear 26 makes one revolution from the initial state in which the first driven side lock portion 29a is fitted to the drive side lock portion 27, as shown in FIGS. 28 is rotated 45 degrees,
The second driven side lock portion 29b is connected to the drive side lock portion 2
Fit to 7. In this way, the drive intermittent gear 2
For each one rotation of 6, the driven intermittent gear 28 is rotated by 45 ° and the driven side lock portions 29a, 29b, 2 are rotated.
9c, 29d, 29e, 29f, 29g and 29h are sequentially fitted into the drive side lock portion 27.

Each of the driven side lock portions 29a, 29b, 2 described above.
When any of 9c, 29d, 29e, 29f, 29g, and 29h is fitted to the drive side lock portion 27, even if the turntable 15 is about to be rotated by an external force, the drive intermittent gear 26 is moved to the table. Unless it is rotationally driven by the driving force of the turn motor 18, it is locked and cannot be rotated.

The turntable 15 is rotated by the driven intermittent gear 26 together with the driving intermittent gear 28, and the drive side lock portion 27 of the driving intermittent gear 26 is rotated.
And the driven-side lock portions 29a, 29 of the driven intermittent gear 28.
b, 29c, 29d, 29e, 29f, 29g, 29h
When and are opposed to each other, one of the plurality of disk cartridge magazines 11 accommodating the plurality of disk cartridges 320 and 321 is selectively opposed to the disk drive unit 8. Since this disc changer device has a pair of the above-mentioned disc drive units 8, each of these disc drive units 8 has one disc cartridge magazine 11, a total of two disc cartridge magazines 11,
11 are opposed at the same time.

For the driven intermittent gear 28, the driven side lock portions 29a, 29b, 29c, 2 of the driven intermittent gear 28 are connected via the turntable 15.
First to eighth detected members 31a, 31b, 31c, 31d, which are detected members configured to be associated with 9d, 29e, 29f, 29g, and 29h and capable of identifying each.
31e, 31f, 31g, 31h are arranged. These detected members 31a, 31b, 31c, 31d, 31
As shown in FIG. 2, e, 31f, 31g, and 31h are members formed in a comb tooth shape having 1 to 8 teeth, and the arrangement direction of the comb teeth is the rotation center of the turntable 15. It is designed to be on the same arc centered at. These detected members 31a, 31b, 31c, 31
d, 31e, 31f, 31g, and 31h are arranged at positions at equal angular intervals with respect to the rotation center of the turntable 15.

On the main chassis 13, the detected members 31a, 31b, 31c, 31d, 31e, 3 are detected.
A driven gear sensor 32 serving as a sensor means is provided on the movement locus of 1f, 31g, 31h as the turntable 15 rotates. This driven gear sensor 3
2 is an optical sensor such as a so-called photo coupler,
The detected members 31a, 31b, 31c, 31d, 31e, 31 that have passed the position of the driven gear sensor 32.
In addition to detecting f, 31g, and 31h, the detected members 31a, 31b, 31c, 31d, and 31 have passed through.
e, 31f, 31g, or 31h is identified. The driven gear sensor 32 sends the detection result to a control circuit (not shown).

A drive gear sensor 30, which is a sensor means for detecting the rotational angle position of the drive intermittent gear 26, is disposed on the main chassis 13 in the vicinity of the drive intermittent gear 26. . In the drive gear sensor 30, the drive side lock portion 27 of the drive intermittent gear 26 faces the side of the driven intermittent gear 28, that is, the drive side lock portion 27 has each of the driven side lock portions 29.
a, 29b, 29c, 29d, 29e, 29f, 29
It is detected that either g or 29h is fitted.
The drive gear sensor 30 sends the detected result to the control circuit.

The control circuit includes the drive gear sensor 30.
Also, based on the detection output from the driven gear sensor 32, it is possible to determine which disc cartridge magazine 11 the turntable 15 faces the disc drive unit 8.

The drive-side lock portion 27 provided on the drive intermittent gear 26 is not limited to one location, but may be provided at a plurality of locations on the drive intermittent gear 26. Even in this case, the drive intermittent gear 2
A portion of the outer peripheral edge portion of 6 other than the drive side lock portions 27 is a gear portion.

[5] Configuration of disk drive unit (FIG. 18)
As shown in FIG. 18, the disk drive unit 8 includes a top plate portion 126, a bottom plate portion 58, the top plate portion 126, and the bottom plate portion 5.
8 and outer side wall portions that connect the both side portions to each other, and the front side is open. The bottom plate 5
On the front end side of 8, there is provided a front plate portion 66 that is vertically provided. The front plate portion 66 closes the open lower portion of the outer casing portion on the front side. This front plate 66
A disc cartridge insertion slot into which the disc cartridges 320 and 321 are inserted is formed between the upper end edge of the disc and the front end edge of the top plate 126.

(1) Structure of Drive Chassis On the bottom plate portion 58, a substantially flat plate-shaped drive chassis 59 is arranged so as to be vertically movable. As shown in FIGS. 35 to 40, a disk table 60 on which the above-mentioned disk is mounted, cartridge positioning pins 63 and 64, and cartridge mounting pins 65 and 65 are arranged on the drive chassis 59. . The cartridge positioning pins 63 and 64 and the cartridge mounting pins 65 and 65 are used for the disk cartridge 3
20, 321 are provided at positions corresponding to the four corners of the lower main surface portion.

The disk table 60 is attached to the drive shaft of a spindle motor 190 attached to the lower surface of the drive chassis 59. The drive shaft projects to the upper surface side of the drive chassis 59 through a through hole provided in the drive chassis 59. The disc table 60 is formed into a substantially disc shape, and the cartridges 305, 3 are inserted through the chucking openings 313 of the cartridges 305, 316.
It is designed to be able to enter into 16. The disc table 60 has the chucking holes 304 on the upper surface.
And the above chucking plate 302
It has a magnet to attract. When the disk table 60 is inserted into the cartridges 305 and 316 through the chucking opening 313, the disk table 60 causes the peripheral portion of the chucking hole 304 to be mounted near the outer peripheral edge portion and the protrusion portion. The chucking hole 304
The magneto-optical disc or the optical disc can be positioned and held by being fitted inside and attracting the chucking plate 302 by the magnet. The magneto-optical disk or optical disk held by the disk table 60 in this manner is rotated by the spindle motor 190.

The cartridge positioning pins 63, 64
Has a substantially conical shape, and the drive chassis 59
It is projected above. When the recording / reproducing disc cartridge 320 or the reproduction-only disc cartridge 321 is mounted on the drive chassis 59, the cartridge positioning pins 63 and 64 are positioned on the front and rear side positioning holes 309 of the cartridges 305 and 316. , 310, and the cartridges 305, 316 are fitted and positioned. Further, the cartridge mounting pins 65, 65 have a substantially cylindrical shape,
It is projected on the drive chassis 59. The cartridge mounting pins 65, 65 are provided on the drive chassis 59 to allow the recording / playback disc cartridge 3 to be combined.
20 or the read-only disc cartridge 321 is placed, the corners of the cartridges 305 and 316 are placed and the cartridges 305 and 316 are positioned in the height direction.

On the lower surface side of the drive chassis 59,
An optical pickup device 61 is provided. The optical pickup device 61 has a light source such as a laser diode, various optical devices for guiding a light flux emitted from the light source, and a light receiving element, and irradiates the magneto-optical disc and the optical disc with a light flux through an objective lens, Information signals can be read from the magneto-optical disc and the optical disc. The optical pickup device 61 is supported by a shaft 188 arranged on the lower surface side of the drive chassis 59 so as to be movable along the shaft 188. By moving the optical pickup device 61 along the shaft 188, the information signal can be read from the entire signal recording area of the magneto-optical disk and the optical disk rotated by the spindle motor 190. ing.

A magnetic head device 155 is attached to the optical pickup device 61 via a head arm 156. The head arm 156 has a base end side attached to the optical pickup device 61, a middle portion thereof is located rearward of a rear end edge of the drive chassis 59, and a front end side portion is above the drive chassis 59. It is located on the side. This head arm 15
The middle portion of 6 is rotatable and displaceable in a direction in which the tip side is moved up and down via a support shaft 187. The magnetic head device 155 is provided on the tip side of the head arm 156.
It is attached to the lower side through a gimbal spring and faces the objective lens of the optical pickup device 61. The magnetic head device 155 is moved and operated in the contacting / separating direction with respect to the objective lens by the head arm 156 being pivotally displaced around the support shaft 187.

On the drive chassis 59,
The disk cartridges 320 and 321 are held by positioning the cartridges 305 and 316 by the cartridge positioning pins 63 and 64 and positioning the magneto-optical disk or the optical disk by the disk table 60. In the recording / reproducing disk cartridge 320 mounted on the drive chassis 59 as described above, the optical pickup device 61 is used for the magneto-optical disk.
The objective lens and the magnetic head device 155 are opposed to each other from both sides. When the disc changer device is set to the recording mode, the magnetic head device 155 is
It is brought into sliding contact with the magneto-optical disk through the magnetic head opening 323. In addition, the drive chassis 59
The reproduction-only disc cartridge 32 mounted on the above
In No. 1, the objective lens of the optical pickup device 61 is opposed to the optical disc.

In this disc drive unit, the recording / reproducing disc cartridge 320 is mounted on the drive chassis 59 to record / reproduce information signals to / from the magneto-optical disc of the recording / reproducing disc cartridge 320. be able to. In the disc drive section, the read-only disc cartridge 321 is provided in the drive chassis 5
By being mounted on the disk 9, the information signal from the optical disk of the read-only disk cartridge 121 can be reproduced.

The drive chassis 59 has a pair of front and rear support pins 157, 1 on both side surfaces.
58, 159, 160. These support pins 1
57, 158, 159 and 160 are provided so as to project toward the lateral sides on both sides. These support pins 157, 158, 1
The reference numerals 59 and 160 are inserted in correspondence with the guide slits 161, 162, 163 and 164 of the guide plates 160 and 160 which are vertically installed in pairs on both side positions on the bottom plate portion 58. These guide slits 161, 162, 16
3, 164 are respectively formed in front and rear pairs on each of the guide plates 160, and are formed with their longitudinal directions perpendicular to the bottom plate portion 58. The drive chassis 5
9 is each of the support pins 157, 158, 159, 160
The above guide slits 161, 162, 163, 16
By being moved within 4, it is possible to move in the vertical direction, that is, in the direction in which it comes in contact with and separates from the bottom plate portion 58.

The bottom plate portion 58 and the drive chassis 5
A slider plate 167 is interposed between the slider 9 and the slider 9. The slider plate 167 includes a main plate portion and both side plate portions 168 and 169 vertically extending from both side edge portions of the main plate portion.
And are formed integrally. The slider plate 167 has a plurality of support slits 170, 171, 186 whose longitudinal direction is the front-back direction in the main plate portion. The slider 167 has the support slits 17 described above.
The support pins 165, 166, 185, which are planted on the bottom plate portion 58, are inserted into the 0, 171, 186 correspondingly so as to be movable in the front-rear direction.
The slider plate 167 is provided on each side plate portion 16 described above.
8, 169 are inserted between the drive chassis 59 and the guide plates 160, 160 correspondingly.
Cam slits 172, 173, 174, 175 into which the support pins 157, 158, 159, 160 are respectively inserted in both side plate portions 168, 169 of the slider plate.
Is provided. These cam slits 172, 17
3, 174 and 175 are formed to have an inclined shape in which the rear side is close to the bottom plate portion 58 and the front side is separated from the bottom plate portion 58. That is, when the slider plate 167 is positioned on the front side, the drive chassis 58 approaches the lower side, that is, the bottom plate portion 58, and when the slider plate 167 moves to the rear side, the support pins 157 are formed. , 158, 159, 160 move in the respective guide slits 161, 162, 163, 164 so that they are moved upward, that is, in the direction away from the bottom plate portion 58.

The slider plate 167 is provided with a tension coil spring 177 stretched between a spring retaining pin 176 provided on the main plate portion and a spring retaining piece 191 provided on the front plate portion 66. As shown by the arrow I in FIG. 35,
It is elastically biased toward the front side. The slider plate 16
A rack gear 178 is provided at the rear edge of the No. 7 so as to extend rearward.

On the bottom plate portion 58, a pair of left and right wire members 67, 67 are disposed on both sides of the drive chassis 59 and extend in the front-rear direction. These wire members 67, 67 are wire-shaped members such as so-called piano wires. The wire members 67, 67 are hooked on the front end side to the hooking portions 68, 68 of the front plate portion 66, and extend horizontally toward the rear side via the upper edge of the front plate portion 66. There is. The rear end sides of the wire members 67, 67 are support pieces 72, 72 vertically provided on the rear portion of the bottom plate portion 58.
Are hung on. That is, these wire members 67,
The disc cartridges 320 and 321 inserted through the disc cartridge insertion opening are mounted on the disc 67. A pair of left and right guide rail members 7 are arranged on the lower surface of the top plate 126 in the front-rear direction.
0 and 70 are provided. Each wire member 67, 6
Disk cartridge 320, 321 mounted on
As shown in FIGS. 24 and 25, the wire is sandwiched between the wire members 67, 67 and the inner side portions of the guide rail members 70, 70, and is guided by the guide rail members 70, 70. Thus, it is held so as to be movable only in the front-back direction.

When the drive chassis 59 is moved upward, the drive chassis 59 enters between the wire members 67, 67, and the disk table 60, the cartridge positioning pins 63, 64 and the cartridge mounting pins. The wires 65, 65 are projected above the wire members 67, 67. Therefore, at this time, the disk cartridge 32 is mounted on the wire members 67, 67.
When 0 and 321 are mounted, the disk cartridges 320 and 321 are mounted and mounted on the drive chassis 59 as shown in FIGS. 38 and 40. When the drive chassis 59 is moved downward, the drive chassis 59 is retracted from between the wire members 67, 67, the disk table 60, the cartridge positioning pins 63, 64, and the cartridge mounting pins 65. , 65 are retracted below the wire members 67, 67. Therefore, at this time, when the disk cartridges 320 and 321 are mounted on the wire members 67 and 67, the disk cartridges 320 and 321 are not connected to the drive cartridges as shown in FIGS. 37 and 39. It is possible to move on the wire members 67, 67 without abutting on the chassis 59.

The head arm 156 and the magnetic head device 155 are provided with the wire members 6 regardless of whether the drive chassis 59 is at the upper or lower position.
Disk cartridge 320 mounted on 7, 67,
It is located above 321.

(2) Construction of First Recording Medium Conveying Mechanism Then, on the bottom plate 58, a driving force source for conveying the disc cartridges 320 and 321 in the horizontal direction and for raising and lowering the drive chassis 59. A loading motor 80 is provided. A drive gear 117 is attached to the drive shaft of the loading motor 80. The drive gear 117 meshes with the first transmission gear 81 rotatably supported on the bottom plate portion 58. A second transmission gear 150 having a diameter smaller than that of the first transmission gear 81 is coaxially and integrally formed with the first transmission gear 81. The second transmission gear 150 meshes with the third transmission gear 82 rotatably supported on the bottom plate portion 58. The third transmission gear 82 includes a fourth transmission gear 15 having a diameter smaller than that of the third transmission gear 82.
1 is integrally formed coaxially. The fourth transmission gear 151 meshes with a fifth transmission gear 83 attached to the transport drive shaft 84 rotatably mounted on the bottom plate portion 58 at substantially the center thereof. That is, when the loading motor 80 is rotationally driven, the transport drive shaft 84 is rotationally operated.

The transport drive shaft 84 is horizontally arranged along the rear edge of the bottom plate 58, and is supported rotatably around the axis. A pair of left and right transport drive gears 85, 85 are attached to both ends of the transport drive shaft 84.

As shown in FIGS. 18 to 34, on both sides of the bottom plate portion 58, there are a plurality of rotating bodies which are synchronously rotated in the same direction, and are the first recording medium. 1st-3rd conveyance gear 8 which comprises a conveyance mechanism
6, 88 and 90 are arranged symmetrically and are arranged in pairs. These transport gears 86, 8
Reference numerals 8, 90, 86, 88, 90 denote support shafts 118, 120, respectively, with respect to the inner side surface portions of the side wall portions on both sides of the outer casing portion, respectively.
It is rotatably supported via 122, 118, 120 and 122. The transport gears 86, 88, 90 have their rotation axes parallel to each other and the rotation axes are located in one plane. That is, the support shafts 118, 120, 122 of the respective transfer gears 86, 88, 90.
Are horizontally oriented and at the same height. Each of the above-mentioned transport gears 86, 88, 90,
86, 88, 90 are arranged in a row in the front-rear direction on both side portions of the bottom plate portion 58.

The transport drive gears 85, 85 are in mesh with the rearmost first transport gears 86, 86, respectively. The reversing gear 8 is respectively provided between the first transport gears 86, 86 and the second transport gears 88, 88 located on the front side of the first transport gears 86, 86.
7,87 intervene and mesh. These reversing gear 8
Reference numerals 7 and 87 are rotatably supported by the side walls of the outer casing via support shafts 119 and 119, respectively, and form a pair of left and right. In addition, the second transport gears 88, 88
Reverse gears 89, 89 are interposed between and meshed with the third transport gears 90, 90 located on the front side of the second transport gears 88, 88, respectively. The reversing gears 89, 89 are rotatably supported by the side walls of the outer casing via support shafts 121, 121, respectively.
It makes a pair of left and right.

That is, the above-mentioned transport drive gears 85, 85
Rotation of the first to third conveyance gears 8 on the left and right sides.
6, 88, 90, 86, 88, 90 are all synchronously rotated in the same direction.

A pair of left and right first to third conveyor gears 8
6, 88, 90 respectively corresponding to the first to the third transport pins 91, 92, which are engaged with the transport gears 86, 88, 90 at positions eccentric to the rotation shafts of the transport gears 86, 88, 90.
93 is projected toward the inner side of the outer casing.
The respective transport pins 91, 92, 93 are formed on the corresponding transport gears 86, 88, 90 via a connecting plate member 127. These transport pins 91, 92, 93
Has a thickness substantially corresponding to the interval between the above-mentioned transport gears 86, 88, 90. In addition, these transport pins 91,
The reference numerals 92, 93 correspond to the positions circumscribing the transfer gears 86, 88, 90, respectively, and the support shafts 118, 12 have a distance corresponding to the distance.
It is separated from 0,122.

On the top plate portion 58, along the gear train formed by the respective transfer gears 86, 88, 90, a moving member supported on the inner side of the gear train so as to be movable in the front-rear direction. A pair of left and right moving blocks 73, 73 are provided. These moving blocks 73, 73 are a pair of left and right guide shafts 6 arranged on the bottom plate portion 58.
It is slidably supported by 9,69. The guide shafts 69, 69 are disposed on both side portions of the bottom plate portion 58 with their axial directions in the front-rear direction, and both front and rear end sides of the support pieces 71 vertically installed on the bottom plate portion 58. 71, 7
It is supported by 2,72. The moving blocks 73,
73 has shaft insertion holes 74, 74, and the guide shafts 69, 69 are inserted in the shaft insertion holes 74, 74.
It corresponds and is inserted. Further, these moving blocks 73, 73 have sliding piece parts 76, 7 provided on the upper end side.
6 is fitted into and engaged with the support grooves 79, 79 provided in the guide rail members 70, 70. That is, each of the moving blocks 73, 73 includes the guide shaft 6
The guide shafts 69, 69 can be moved in the axial direction without rotating around the axes of the 9, 69.

The transfer pins 91 and 9 are provided on the outer side surfaces of the moving blocks 73 and 73, respectively.
A driven engagement groove 75, into which 2 and 93 are fitted and engaged, is formed. The driven engagement groove 75 is a groove formed in the vertical direction, and the upper end portion thereof is located at a height position corresponding to the support shafts 118, 120, 122 for supporting the respective transfer gears 86, 88, 90. It is formed downward from the upper end and the upper end is open. A pair of guide groove portions 128, 129 continuous with the upper end portion of the driven engagement groove 75 is formed in each of the moving blocks 73, 73. The guide groove portions 128 and 129 are formed to have a bifurcated shape in the front-rear direction toward the upper side from the upper end portion of the driven engagement groove 75. These guide groove portions 128 and 129 are used for the transport gears 86 and 88,
It is formed in an arc shape corresponding to the arc-shaped movement locus of the transfer pins 91, 92, 93 about the rotation axis of each of the transfer gears 86, 88, 90 when 90 is rotated. That is, the guide groove portions 128, 129 guide the transport pins 91, 92, 93 which enter the driven engagement groove 75 from above as the transport gears 86, 88, 90 rotate. In addition, each of the guide groove portions 128 and 129
Is a transport pin 91, which is pulled out upward from the driven engagement groove 75 as the transport gears 86, 88, 90 rotate.
Guide 92 and 93.

In the moving block 73, when each of the transport gears 86, 88, 90 is rotationally operated, the transport pin of one transport gear enters the driven engagement groove 75 from above and is engaged and engaged. As a result, the transport pin is moved in accordance with the rotation of the one transport gear, and the transport pin of the one transport gear is slipped out of the driven engagement groove 75 and fitted into the driven engagement groove 75. When the engagement is released, the transport pin of the other transport gear enters the driven engagement groove 75 and engages with the driven engagement groove 75, so that the transport pin is moved with the rotation of the other transport gear. In this way, the moving block 75
Are sequentially moved over the sense of position facing each of the above-described transport gears 86, 88, 90.

That is, each of the above-mentioned carrier gears 86, 88, 9
No. 0 is meshed with each other so that the respective transport pins 91, 92, 93 are at angular positions having a predetermined phase difference.
The support shafts 118, 12 to which the corresponding transport pins 91, 92, 93 correspond to the angular positions of the respective transport gears 86, 88, 90.
When the position at the front side of 0,122 is expressed as the 0 ° position, in the initial state, as shown in FIG.
The third transport gear 90 is at the 0 ° position, and the third transport pin 93 is fitted and engaged in the driven engagement groove 75. At this time, the moving block 73 is at the foremost position. 29 to 34, if the counterclockwise rotation (counterclockwise rotation) in the drawings is expressed as the + (plus) direction, in this initial state, the second transport gear 88
Is in the (180 ° −θ ₂ ) position, and the first transport gear 86 is in the (180 ° + θ ₁ ) position. Here, θ ₁ and θ ₂ are 60 °.

The transport drive gear 85 is indicated by an arrow S _{1 in} FIG.
When rotated in the − (minus) direction indicated by, the third transport gear 90 rotates in the + direction indicated by arrow S ₄ in FIG. By rotating the third conveyor gear 90 by 180 ° in the + direction, the moving block 73 is moved backward by a distance substantially corresponding to the diameter of the third conveyor gear 90, as shown in FIG. Be moved to. At this time, the second transport gear 88 rotates in the + direction indicated by the arrow S ₃ in FIG. 31 and is in the (360 ° −θ ₂ ) position, that is, the −60 ° position.

Then, the third transfer gear 90 is set to 210
When rotated to the ° position, as shown in FIG. 31, the third transport pin 93 tries to separate from the moving block 73 via the front guide groove portion 129. At this time, the second transport gear 88 is operated by the second transport pin 9
2 through the guide groove 128 on the rear side, and the driven engagement groove 7
I'm trying to get into 5.

The third transfer gear 90 moves 420 in the positive direction.
When it is rotated to the ° position (1 rotation and 60 °), the second
32, and the moving block 73 is further moved to the second position as shown in FIG.
Has been moved rearward by a distance substantially corresponding to the diameter of the transport gear 88. At this time, the first transport gear 86
Rotates in the + direction shown by arrow S ₂ in FIG.
DEG - [theta] ₁₎ position, i.e., has a -60 ° position.

Then, the third carrier gear 90 is set to 450
When it is rotated up to the 1 ° (1 rotation and 90 °) position, as shown in FIG. 33, the second transport pin 92 is going to be separated from the moving block 73 via the guide groove portion 129 on the front side. At this time, the first transport gear 86
Is the guide groove 12 on the rear side of the first transport pin 91.
It is going to enter into the driven engagement groove 75 via 8th.

When the third carrier gear 90 is rotated in the + direction to the 660 ° position (1 rotation and 300 °), the first carrier gear 86 is at the 180 ° position, and the movement is performed. As shown in FIG. 34, the block 73 is further moved rearward by a distance substantially corresponding to the diameter of the first transport gear 86, and reaches the rearmost position. At this time, the first transport gear 86 rotates in the + direction shown by the arrow S ₂ in FIG. 34 and is in the 180 ° position.

The transport driving gear 85 is indicated by an arrow T _{1 in} FIG.
When rotated in the + direction shown by, the first to third transport gears 86, 88, 90 rotate in the-direction shown by arrows T ₂ , T ₃ , T ₄ in FIGS. 30 to 34, The moving block 73 is moved from the rear side to the front side.

In this way, the moving block 73
Is moved backward or forward in accordance with the rotational driving direction of the loading motor 80. The moving blocks 73, 73 forming a pair on the left and right are synchronously moved so that their positions in the front-rear direction are equal to each other.

(3) Configuration of Second Recording Medium Conveying Mechanism In each of the moving blocks 73, 73, the disk cartridge 320, which constitutes the second recording medium conveying mechanism which is the recording medium conveying device according to the present invention, A mechanism for engaging 321 is provided. That is, the moving plates 98, which are moving members, are attached to the moving blocks 73, 73 so as to form a left-right pair with the stop screws 116, 116. The moving plate 98 is a plate-like member formed in the shape of a projecting piece that projects toward the inner side of the outer casing.

A pair of left and right engaging means having a positioning lever 99 and an engaging lever 100 is formed on each of the moving plates 98. Positioning lever 99
Is the support shaft 109 with respect to the rear side portion of the moving plate 98.
It is rotatably supported via. On the rear end side of the positioning lever 99, the positioning pin 1 is directed upward.
10 is projected. And this positioning lever 9
A groove portion 111 for engaging with the engaging lever 100 is provided on the front end side of 9. The support shaft 109 is supported by a rear support shaft hole 125 formed on the moving plate 98.

The engaging lever 100 has the moving plate 98.
Is rotatably supported via a support shaft 112 with respect to the front portion of the. On the rear end side of the engagement lever 100,
The groove portion 111 of the positioning lever 99 faces upward.
An engaging pin 113 that engages with is protrudingly provided. And
A hook-shaped engaging portion 115 for engaging with the engaging concave portion 312 of the disc cartridge 320 or 321 is provided on the front end side of the engaging lever 100. Above spindle 1
Reference numeral 12 denotes a front support shaft hole 12 formed on the moving plate 98.
It is supported by 4.

The engaging portions 115 form a left and right pair facing each other, and a pair of left and right engaging levers 100,
With the rotation of 100, the disc cartridges 320, 321 at the positions facing the disc drive unit 8 enter into the left and right engaging recesses 312, 312 from both sides and engage with each other.

Each of the positioning pins 110, 110 has two positioning engagement grooves 77, which are formed in the lower surface of each of the guide rail members 70, 70 in the front-rear direction.
Selectively engages with any one of 78. When the positioning pins 110 are engaged with the inner positioning engagement grooves 77, 77, as shown in FIGS. 19 and 20, the engagement levers 100, 100 are arranged such that the rear end side is outward. By being rotated to the
Is moved to an inward position where it can be engaged with the engagement recesses 312 and 312. When the positioning pins 110 are engaged with the outer positioning engagement grooves 78, 78, as shown in FIG. 21, the engagement levers 100, 10 are engaged.
When 0 is rotated in the direction of forming the rear end side with the inner side, the engaging portions 115, 115 are moved to the engaging recess 31.
2, 312 is moved to the outer side position to release the engagement.

Then, each of the positioning engaging grooves 77, 78
Of the left and right operation levers 96, 9 constituting the operation mechanism at the end portion of the front end, that is, the position facing the opened front end portion.
6 are provided. These operation levers 96, 96 are
The midway portion is rotatably attached to the top plate 126 via the support shaft 104. These operating levers 96
Each of them has an operated arm portion 108 projecting from the middle portion toward the inner side of the outer casing portion, and an operation arm portion 106 protruding from the middle portion toward the rear side. Is formed. Further, each of these operation levers 96 has an operation piece portion 105 that is hung downward at a portion on the outer side of the support shaft 104. The operation arms 106, 106 have the tips 107, 107 opposed to each other corresponding to the front ends of the outer positioning engagement grooves 78, 78. A tip portion 107 of the operation arm 106 is formed in a tapered shape that is inclined inward of the outer casing portion. Each of the operated arms 108, 108 has an operated pin 103 on the tip end side. A pair of tension coil springs 97, 9 which are elastic members are provided between the operated pins 103, 103 and a pair of spring retaining portions provided in the central portion on the front end side of the top plate portion 126.
7 is stretched correspondingly. By the tension coil springs 97, 97, the respective operation levers 96, 96 are
Tip portions 107, 10 of the operation arms 106, 106
7 is held at an initial position where the outer positioning engagement grooves 78 and 78 are opposed to the front end portions thereof, and no matter which direction is rotated from this initial position, it is elastically returned to the initial position. It is urged to rotate.

On the front end side of the top plate 126, a plunger 94, which is an electromagnetic drive device, is disposed at the center. The plunger 94 has the drive shaft 101 directed rearward. One end side of a pair of left and right drive levers 95, 95 is engaged with the drive shaft 101. These drive levers 95, 95 are arranged on both sides of the drive shaft 101, and the central portions thereof are rotatably supported by the top plate portion 126 via the support shafts 102, 102, respectively. The other end side of each of the drive levers 95, 95 extends to the position on the front side of the operated pins 103, 103 of the operation levers 96, 96.

When the plunger 94 is driven, the drive shaft 101 moves as shown by an arrow P in FIG.
Moving to the front side, each of the drive levers 95, 95 is rotated in the direction of moving the other end side to the rear side. Then, as shown in FIG. 21, the drive levers 95, 95 cause the tip portions 10 of the operation arms 106, 106 to move.
The operating levers 9 and 7 are arranged so that the moving members 7 and 107 move outward from the front end portions of the outer positioning engaging grooves 78 and 78.
21, 6 and 96 are rotated against the biasing forces of the tension coil springs 97 and 97, as indicated by arrow Q in FIG.

In this operating mechanism, in the operating levers 96, 96, the moving plates 98, 98 are moved forward so that the positioning pins 110, 110 move in the positioning engaging grooves 77, 78. When it comes out to the front side from 77, 78, the positioning levers 99, 99 are rotated by the operation pieces 105, 105, or the positioning pins 110 are operated by the operation arms 106, 106. , 110 are moved to engage or disengage the engaging portions 115, 115 with the engaging recesses 312, 312.

That is, when the plunger 94 is not operating and the positioning pins 110, 110 are engaged with the outer positioning engagement grooves 78, 78, as indicated by arrow L in FIG. The moving plates 98,
When 98 is moved to the foremost position, the positioning pins 110, 110 are moved to the outer positioning engagement grooves 78, 7 respectively.
While coming out of the front side from 8, the end portions 107, 107 of the operation arm portions 106, 106 are brought into contact with the operation arm portions 106, 106, and the operation arm portions 106, 106 are once rotated outward. However, the operation arm portions 106, 106 are
It returns to the initial position by the urging force of each of the tension coil springs 97, 97, and at this time, each of the positioning pins 11
0 and 110 are moved inward as indicated by arrow M in FIG.
10, 110 are located in front of the inner positioning engagement grooves 77, 77.

As described above, each of the positioning pins 110, 1
By moving 10 the engaging levers 10
As shown by the arrow N in FIG. 20, 0 and 100 are rotated in a direction to move the engaging portions 115 and 115 inward, and the engaging portions 115 and 115 are moved to the cutout portions 4 respectively.
The disc cartridges 320, 3 which are inserted into the storage portion 39 of the disc / disc cartridge magazine 11 via 4, 4 and face the disc drive portion 8.
The engaging recesses 312 and 312 of 21 are engaged.

At this time, the engaging arm 100
Contacts the engaging member 45 of the disk cartridge magazine 11 facing the disk drive unit 8,
This engaging member resists the biasing force of the leaf spring portion 50,
Rotate to the rear side. The engagement member 45 that has been rotated rearward in this manner releases the engagement with the engagement recess 321.

That is, in this operation mechanism, the operation arm portions 106, 106 are brought into contact with the positioning pins 110, 110 to make contact with the positioning pins 110, 1.
Move 10 Further, in this operation mechanism, the operation arms 106, 106 have the positioning pins 110, 110, the engagement portions 115, 115 have the engagement recesses 312, 3 of the disk cartridges 320, 321.
The tension coil springs 97, 97 are elastically biased in the direction in which the tension coil springs 97, 97 are moved in the direction in which the tension coil springs 12 are engaged.

The plunger 94 resists the urging force of the tension coil springs 97, 97, and causes the positioning pins 110, 110 to engage the engaging portions 115, 115.
Operates to move in a direction in which the engagement with the engaging recesses 312 and 312 is released. That is, each of the engaging portions 115, 115 has each of the engaging recesses 31.
The plunger 94 when engaged with
21 is operated, the operation levers 96, 96 are rotated as indicated by an arrow Q in FIG. 21, and the operation levers 96, 96 are moved by the operation pieces 105, 105 to position the positioning levers 99, 96. 99, each of the positioning pins 110, 110 has the outer positioning engaging groove 7
It is rotated to a position to be located in front of 8,78. By thus rotating the positioning levers 99, 99, the engaging levers 100, 100 are rotated.
As shown by arrow R in FIG.
It is rotated in a direction to move the 5, 115 to the outside, and the engagement of the engaging portions 115, 115 with the engaging concave portions 312, 312 is released.

As described above, the plunger 94 allows the engagement recesses 312, 3 of the engagement portions 115, 115 to be formed.
When the moving blocks 73, 73 are moved to the rear side in a state in which the engagement with 12 is released, the positioning pins 110, 110 cause the outer positioning engaging grooves 78,
78 is engaged from the front end side.

In a state where the engagement levers 100, 100 are engaged with the engagement recesses 312, 312, the movement blocks 73, 73 and the movement plates 9 are provided.
When the disks 8 and 98 are moved in the front-rear direction, the disk cartridges 320 and 321 are moved to the respective moving blocks 7.
In accordance with 3, 73, the wire members 67, 67 are moved and operated in the front-rear direction. In this way, the disk cartridges 320 and 321 which have been moved by following the moving blocks 73 and 73 are
When 3,3 reach the rearmost position, the position is set on the drive chassis 59, that is, the position is mounted on the drive chassis 59 when the drive chassis 59 is lifted.

The disk cartridges 320, 321 conveyed on the wire members 67, 67 are conveyed to the rear side and reach the position to be mounted on the drive chassis 59. Three
A shutter opening cover member (not shown) is brought into contact with the front end portion of the disc 17, so that the disc cartridges 320, 32
With the movement of 1, the shutter members 306 and 317 are opened. In addition, the disk cartridges 320, 3 conveyed forward on the wire members 67, 67
The disc cartridge 32 is provided with a shutter closing leaf opening member 308 of the shutter members 306 and 317 by fitting a shutter closing leaf spring member (not shown).
The shutter members 306, 31 are moved along with the movement of 0, 321.
7 has been closed.

(4) Structure of Lifting Mechanism In the disk drive section 8, the drive chassis 59 is driven by the driving force of the loading motor 80.
A chucking transmission gear 153, which constitutes an ascending / descending mechanism for transmitting the driving force to the slider plate 167, is rotatably provided in order to enable the vertical movement of the slider. As shown in FIG. 35, the chucking transmission gear 153 is rotatably supported by a support shaft 154 on the bottom plate portion 58, and is attached to the rack gear 178 and the transport drive shaft 84 as a chucking drive intermittent gear. It is arranged at a position where it can mesh with 152.

The chucking drive intermittent gear 152 is
As shown in FIGS. 39 to 43, it is formed having a gear portion 179 and one lock portion 180. The lock portion 180 is formed in a convex cylindrical surface centered on the central axis of the chucking drive intermittent gear 152, and the gear portion 17 is provided.
9 has a radius of curvature corresponding to the middle position of the tooth height.

The chucking transmission gear 153 is shown in FIG.
As shown in FIGS. 1 to 43, the periphery of the one surface side portion is the toothless gear portion, and the periphery of the other surface side portion is the driven intermittent gear portion. As shown in FIG. 41, the toothless gear portion is
It is composed of a toothless portion 184 and a gear portion 183.

The toothless portion 184 is formed in a cylindrical shape centering on the central axis of the chucking transmission gear 153,
The gear portion 184 has a radius equal to or smaller than the root circle. The driven intermittent gear portion includes a plurality of lock portions 182, a gear portion 181 formed between the lock portions 182, and an initial position gear portion 192. The driven intermittent gear portion meshes with the chucking drive intermittent gear 152. That is, each lock portion 18 of this driven intermittent gear portion
Reference numeral 2 has the same curvature as the lock portion 180 of the chucking drive intermittent gear 152, and the center of the chucking drive intermittent gear 152 when the chucking drive intermittent gear 152 meshes with the driven intermittent gear portion. It is formed into a concave cylindrical surface centered on the axis. The number of teeth of each gear portion 181 of the driven intermittent gear portion is the same as the number of teeth of the gear portion 179 of the chucking drive intermittent gear 152. However, in the initial position gear portion 192, since the meshing portion with the chucking drive intermittent gear 152 does not pass through the initial position gear portion 192, the number of teeth is the gear portion 179 of the chucking drive intermittent gear 152. It does not have to be the same as the number of teeth.

The tooth-chipped gear portion of the chucking transmission gear 153 is located on the rack gear 178 of the slider plate 167.
Mesh with 8. The tooth-chipped gear portion of the chucking transmission gear 153 has the tooth-chipped portion 184 and the rack gear 178.
When directed to the side, it does not mesh with the rack gear 178.

When the moving blocks 73, 73 are located at the foremost position, the chucking drive intermittent gear 152 is the initial position gear portion 192 of the driven intermittent gear portion of the chucking transmission gear 153, or It meshes with the vicinity of the initial position gear portion 192. At this time, in the chucking transmission gear 153, the toothless portion 184 of the toothless gear portion is opposed to the rack gear 178.
The slider plate 167 has the tension coil spring 17
According to the urging force of No. 7, it is located on the front side.

When the loading motor 80 is rotationally driven in the forward direction and the transport drive shaft 84 is rotationally operated, the moving blocks 73 and 73 are moved rearward and the chucking drive intermittent gear is operated. 152
Rotates the chucking transmission gear 153 via the driven intermittent gear portion. The rotation operation of the chucking transmission gear 153 by the chucking drive intermittent gear 152 is performed via the plurality of gear portions 181 and the plurality of lock portions 182 of the driven intermittent gear portion. While the moving blocks 73, 73 are moved to the rear side, the chucking transmission gear 153 is rotated with respect to the rack gear 178 even if the chucking transmission gear 153 is rotated. Continue to face each other.

When the moving blocks 73, 73 reach the rearmost position, the chucking drive intermittent gear 152 further rotates the chucking transmission gear 153 via the driven intermittent gear portion, The gear portion 183 of the toothless gear portion is meshed with the rack gear 178.
The gear portion 183 of the toothless gear portion is the rack gear 178.
The slider plate 167 is moved to the rear side by moving the drive chassis 59 to the upper side. At this time, on the drive chassis 59, the disk cartridges 320 and 321 that have been transported rearward along with the moving blocks 73 and 73 are mounted. Also, when the rearward movement of the slider plate 167 is completed, the loading motor 80 is stopped and the chucking drive intermittent gear 152 causes the locking portion 180 to move to the driven intermittent gear as shown in FIG. It stops in the state where it was engaged with the lock portion 182 of the section.

Since the loading motor 80 is rotationally driven until the rearward movement of the slider plate 167 is completed, the first transport gears 86, 86 move the moving blocks 73, 73 to the rearmost position. After being moved to the position, it may be further rotated. In this case, the first transport pins 91, 91 pass through the guide groove portions 129, 129 on the front side of the moving blocks, and the first transport pins 91, 91 move. The moving blocks 73, 73 are separated from each other. Then, when the reverse rotation drive of the loading motor 80 is started, each of the first transport pins 91, 91 is started.
Is again the guide groove portion 12 on the front side of each moving block.
After passing through 9,129, the driven engagement grooves 75,75 are entered.

Then, as described above, the slider plate 1 is
When the loading motor 80 is rotationally driven in the reverse direction with 67 moved to the rear side, the chucking transmission gear 153 is rotationally operated, and first, the slider plate 167 is returned to the front position. The drive chassis 59 is moved downward, and then the moving blocks 73, 73 are moved forward. When the moving blocks 73, 73 reach the foremost position, the loading motor 80 is stopped.

[6] Construction of Elevator Mechanism (FIGS. 44 to 52) As shown in FIGS. 44 to 48, the elevator mechanism for moving and operating the pair of disk drive units 8 in the up and down direction is the above-mentioned strut 7. Has a support plate portion 9 which is a movable operation member supported movably in the vertical direction. The support plate portion 9 is formed to have a bottom plate portion and a pair of side wall portions that are vertically provided on both sides of the bottom plate portion. A thrust bearing 146 is attached to a central portion of the support plate portion 9, and the support plate portion 9 is attached to the pillar 7 through the thrust bearing 146. Then, on the support plate portion 9, the pair of disk drive portions 8, 8 serving as the movable operation member together with the support plate portion 9 are located between the side wall portions, and the respective disk cartridges are inserted. The mouth side is directed to the outer side away from the support 7, and the positions are opposite to each other with the support 7 as a center, that is, symmetrical positions with the support shaft 7 as an axis.

The support plate portion 9 has an angular position around the column 7 so that the pair of support walls 16 and 16 are located outside the side wall portions on both sides. In order to prevent the support plate portion 9 from rotating around the support column 7, a sub shaft 145 that is parallel to the support column 7 and is planted on the main chassis 13 is provided on the bottom surface of the support shaft 9. It is inserted through the hole. The upper end sides of the support shaft 7 and the sub shaft 145 are supported by a top plate portion that extends between the upper end edges of the support walls 16 and 16.

The elevator mechanism has an elevator motor 135 mounted on the one support wall 16 via a motor mounting plate 138. The drive worm gear 13 is attached to the drive shaft of the elevator motor 135.
6 is attached. This elevator motor 135
Drive shaft is horizontal, that is, the main chassis 13
Parallel to the upper surface of the. This drive worm gear 1
The transmission worm wheel 13 is rotatably supported by the motor mounting plate 138 via a support shaft 137.
9 is meshed. A worm gear 140 is attached to the support shaft 137 supporting the transmission worm wheel 139, which is positioned below the transmission worm wheel 139 and coaxial with the transmission worm wheel 139. The worm gear 140 has two threads.

In the worm gear 140, a pair of worm wheels 10, 1 rotatably attached to the one support wall 16 via support shafts 131, 131, respectively.
0 meshes. These worm wheels 10, 10
Are arranged at positions facing each other with the worm gear 140 interposed therebetween. That is, the main surface portions of the worm wheels 10, 10 are located on the same plane.

Each of the worm wheels 10 and 10 includes:
Engagement pins 133 and 133, which are paired engagement members, are correspondingly attached via coupling plates 132 and 132 having the same shape. Each of the engaging pins 133, 133
Are parallel to each other and project toward the support plate 9 side, that is, the column 7 side. The engaging pins 133 and 133 are set at the same height position by adjusting the meshing position of the worm wheels 10 and 10 with the worm gear 140. Since the number of threads of the worm gear 140 is two, the teeth (rows) of the worm gear 140 always exist at the same position in the axial direction at the position opposite to the center axis of the worm gear 140. Therefore, the respective engaging pins 133 and 133 can be set at the same height position by easy adjustment.

The respective engagement pins 133, 133 are fitted and engaged in correspondence with a pair of engagement slits 134, 134 provided in the side wall portion on one side of the support plate portion 9. These engaging slits 134, 134 are respectively formed in the horizontal direction, and are formed in symmetrical positions and shapes with respect to the central portion of the supporting plate portion 9.

Then, the transmission worm wheel 139.
Is attached to the upper end side of the support shaft 137, the spur gear 14
1 is attached. The pair of support walls 16 and 16
The other support wall 16 of the
Similarly, the motor mounting plate 138 is mounted. The motor mounting plate 138 mounted on the other support wall 16 is rotatably mounted with a support shaft 137 having a flat gear 141 mounted on the upper end side and a worm gear 140 mounted on the lower side. The worm gear 140 has two threads. No motor is attached to the motor attachment plate 138 attached to the other support wall 16.

Similar to the one support wall 16, a pair of worm wheels 10, 10 meshing with the worm gear 140 from both sides are rotatably mounted on the other support wall 16 via a support shaft 131. It is installed. Engagement pins 133 and 133, which serve as a pair of engagement members, are attached to the worm wheels 10 and 10 via corresponding connecting plates 132 and 132, respectively. The engagement pins 133 and 133 are parallel to each other and are provided so as to project toward the support plate portion 9 side, that is, the support column 7 side. In addition, the engagement pins 133 and 133 are connected to the worm wheels 10 and 1 respectively.
By adjusting the meshing position of 0 with the worm gear 140, they are set at the same height position.

The engagement pins 133 and 133 are fitted and engaged in correspondence with a pair of engagement slits provided on the other side wall portion of the support plate portion 9. These engaging slits are formed in the horizontal direction, respectively, and are formed in symmetrical positions and shapes with respect to the central portion of the support plate portion 9.

That is, the support plate portion 9, the support walls 16, the worm wheels 140, 140, and the worm gears 10, 10, 10, 10 are the support columns 7
The plane passing through is configured to have a symmetrical shape and position. Then, the spur gears 1 attached to the support walls 16 and 16 via the motor mounting plates 138 and 138 and the support shafts 137 and 137, respectively.
A timing belt 130 is wound around 41 and 141. That is, each of the above spur gears 141, 14
1 rotate synchronously in the same direction and at the same speed.
The engagement pins 13 located on both sides of the support plate portion 9
3, 133, 133, 133 are the spur gears 141,
By adjusting the mutual phase relationship of 141, all are at the same height position.

In this elevator mechanism, the elevator motor 135 is rotatably driven, so that FIG.
, The worm wheels 10, 10 are rotatably operated as indicated by arrows U and V, and
Are translated in the vertical direction while maintaining the horizontal state, as indicated by the arrow W in FIG.

Then, on the main chassis 13,
A reset sensor (not shown) is provided for detecting that the support plate portion 9 and the disk drive portions 8 and 8 are located at the lower end of the movable range by the elevator mechanism. A so-called push button switch can be used as the reset sensor.

Further, in the vicinity of the support column 7, the support column 7 is provided.
A position detection scale plate 142 is vertically provided so as to be parallel to. The position detection scale plate 142 is formed in a rectangular flat plate shape, and as shown in FIGS.
A plurality of detection holes 147 are formed at equal pitches indicated by arrows X in FIGS. 50 and 51. Then, the support plate portion 9 faces the position detection scale plate 142 and serves as position sensor means, that is, first and second optical sensors 14.
3, 144 are attached. Each of these optical sensors 1
43 and 144 are each configured to have an optical sensor such as a photocoupler, and each one detection unit 148,
149. These optical sensors 143, 144
When the detection unit 148 of the first optical sensor 143 is located at the upper edge of the one detection hole 147, the second optical sensor 14
The four detection units 149 are positioned and disposed so as to be located slightly above the lower edge of the other detection hole 147. That is, the detection units 14 indicated by the arrow Y in FIG.
The distances 8, 149 are slightly shorter than the distance (pitch (X) between the detection holes 147) plus the length of the detection holes 147.

Each of the photosensors 143, 144 outputs an "H" level (high level) when the detectors 148, 149 face the detection hole 147, and the detectors 148, 149 When 149 does not face the detection hole 147, it outputs an "L" level (low level) output. The outputs of these optical sensors 143, 144 are sent to the control circuit.

When the outputs of the photosensors 143 and 144 are outputs 143a and 144a, respectively, these outputs 143a and 144a are shown in FIG. 52 when the support plate 9 is moved along the support column 7. As shown in the drawing, the movement of the support plate portion 9 causes a periodical change between the “H” level and the “L” level. At this time, the outputs 143a and 144a are out of phase, and the outputs 143a and 144a simultaneously become "H" level.
As indicated by an arrow Z in FIG. 52, each of the detection units 148, 1
Reference numeral 49 is a small section that faces the detection hole 147. Therefore, each of these outputs 143a, 144
By counting that "a" becomes "H" level at the same time, the moving distance of the supporting plate 9 can be detected. That is, by detecting the movement distance of the support plate portion 9 after the detection by the reset sensor, the positions of the support plate portion 9 and the disk drive portions 8 can be detected. Also, these outputs 143a, 14
If the support plate portion 9 is stopped at a position where 4a simultaneously becomes "H" level, the support plate portion 9 is accurately stopped at any of a plurality of predetermined positions at equal intervals. It will be.

In this way, the control circuit outputs the outputs 143a and 144a from the optical sensors 143 and 144, respectively.
Based on the above, the positions of the disk drive units 8 and 8 can be detected by detecting the distance moved by the support plate unit 9 and the disk drive units 8 and 8 after the detection by the reset sensor. .

Each of the disc drive units 8 and 8 is moved in the vertical direction by the elevator mechanism, so that a plurality of disc cartridge magazines 11 and 11 opposed to the disc drive units 8 and 8 are housed in a plurality of magazines. From among the disk cartridges 320 and 321,
One disk cartridge 320, 321 can be selected. That is, when the support plate portion 9 is accurately stopped at any one of a plurality of predetermined positions at equal intervals, the disk drive portions 8 and 8 are locked by the engagement levers 10.
0,100 is the magazine 1 for the above disk cartridge
It is accurately stopped at a height position corresponding to each of the engaging recesses 312 and 312 of one of the disk cartridges 320 and 321 housed in Nos. 1 and 11.

The reset sensor detects the position of the support plate 9 and the disk drive units 8 and 8 at the upper end of the movable range by the elevator mechanism. It may be arranged on the upper end side of the plate 142.

[7] Operation of Disc Changer Device (FIGS. 1 to 56) In the disc changer device to which the present invention is applied as described above, the magazine 11 for the disc cartridge on the turntable 15 is used. If the above-mentioned disc cartridges 320 and 321 are accommodated in these disc cartridge magazines 11 as appropriate, the accommodated disc cartridges 320 and 3
21, one or two disk cartridges 32
0, 321 can be selected to record or reproduce the information signal.

The disc changer device can be operated by an operating device (not shown) via the control circuit. The stored disk cartridge 320,
The selection operation from 321 identifies the magazine 11 for the disk cartridge (No. 1) to (No. 8).
M address, which is the address number of the disc cartridge, and the disc cartridges 320 and 321 in the disc cartridge magazine 11 (No. 1) to (No. 1).
This can be done by designating the D address which is the address number of 0).

In this disc changer device,
The table turn motor 18 according to the M address
The turntable 15 is rotated by the rotary table 13 and the lift motor 13 is driven according to the D address.
The disk drive units 8 are moved up and down by 5. The operations of the table turn motor 18 and the lift motor 135 can be performed simultaneously.
When the turntable 15 and the disc drive units 8 and 8 are moved to the positions designated by the M address and the D address, respectively, the disc drive units 8 and 8 have the selected discs. The cartridges 320 and 321 are opposed to each other. At this time, in the disk drive units 8 and 8, the moving blocks 73 and 73 are located on the rear side,
Further, the positioning pins 110, 110 are engaged with the outer positioning engagement grooves 78, 78.

In this way, the disc cartridge 32
When the moving blocks 73, 73 are moved to the foremost positions by the loading motor 80 in a state where the selection of 0, 321 is completed, the engaging levers 100, 10 are
0 engages with the engaging recesses 312 and 312 of the disc cartridges 320 and 321. Then, when the loading motor 80 is rotationally driven in the forward direction, the disk cartridges 320 and 321 engaged with the engagement levers 100 and 100 are moved to the disk drive units 8 and 8 respectively.
It is pulled in and mounted on the drive chassis 59.

The above M address and D address are
The disk drive units 8 and 8 can be individually designated, and after the disk cartridges 320 and 321 have been installed in one of the disk drive units 8, the other disk drive unit 8 can be specified. 321 is selected and mounted.

In each of the disc drive units 8 and 8, information signals can be recorded or reproduced while the disc cartridges 320 and 321 are mounted on the drive chassis 59. Further, in the state where the information signal is recorded or reproduced in one of the disc drive units 8, the disc cartridge 320 of the other disc drive unit 8,
321 can be ejected, selected and mounted.

Then, each of the disk drive units 8 and 8
Mounted on the disk cartridge 320, 321
Is returned to the original position in the original disk cartridge magazine 11 according to the designated M address and D address. That is, the above M address and D
The loading motor 80 is mounted after the rotational angle position of the turntable 15 and the height positions of the disk drive units 8 and 8 are returned to the positions when the disk cartridges 320 and 321 were mounted according to the address. By being rotationally driven in the direction opposite to the time, the mounted disc cartridges 320 and 321 are returned to the original position of the original disc cartridge magazine 11. At this time, the plunger 94 is operated to cause the engagement recesses 312 of the engagement levers 100, 100.
After the engagement with 312 is released, the moving blocks 7
3, 73 are moved to the rear side. The engaging member 45 is engaged with the engaging concave portions 312 of the disk cartridges 320 and 321 returned to the disk cartridge magazine 11.

In this disc changer device, the disc drive unit 8 is arranged on the turntable 15, and the disc cartridge magazines 11 are arranged on the main chassis 13 as recording medium supporting members. You may comprise. In this case, the disk drive portion 8 is rotated by the drive intermittent gear 26 via the driven intermittent gear 28, and either the drive side lock portion 27 of the drive intermittent gear 26 or the driven intermittent gear 28 is rotated. Driven side lock portions 29a, 29b, 29
When c, 29d, 29e, 29f, 29g, and 29h face each other, the disk cartridges 320 housed in the plurality of disk cartridge magazines 11,
It selectively opposes one of 321.

In this case and in the above-mentioned embodiments, the elevator mechanism does not operate to move the disk drive units 8 up and down, but may be used as a mechanism for moving the disk cartridge magazines 11 up and down. Good.

[0152]

As described above, in the recording medium conveying device according to the present invention, the moving member supported so as to be movable in the recording medium conveying direction and the moving member are formed along the moving path of the moving member. A pair of positioning engagement grooves that are parallel to each other are provided.

On the moving member, there is provided a positioning pin which is composed of at least one member movably arranged with respect to the moving member and which selectively engages with one of the positioning engaging grooves. , An engaging means having an engaging portion that moves between a position for engaging the recording medium and a position for releasing the engagement with the recording medium according to the position of the positioning pin. . Further, when facing the terminal end of the positioning engaging groove, when the moving member is moved and the positioning pin comes out of the positioning engaging groove,
An operating mechanism is provided which operates the engaging means to engage the engaging portion with the recording medium or release the engaging portion with the recording medium.

Therefore, in this recording medium conveying device, the engaging means determines whether or not to engage the recording medium, depending on which positioning engaging groove the positioning pin engages with. Therefore, it is possible to reliably switch the operation.

Further, in the above-mentioned recording medium conveying device,
The operation mechanism has an operation arm portion that abuts the positioning pin to move the positioning pin, and the operation arm causes the engaging portion to engage the positioning pin with the recording medium by an elastic member. And an electromagnetic drive device that resists the biasing force of the elastic member and causes the engagement portion of the positioning pin to disengage from the recording medium. When it is decided that the electromagnetic driving device is operated or deactivated, the engaging means is engaged with the recording medium. Whether or not it can be surely performed.

In each of the above-described recording medium conveying devices, each positioning engagement groove is formed in a guide rail member arranged along the recording medium conveying path for guiding the movement of the recording medium. If the recording medium reproducing device is provided, it is possible to simplify the device configuration of the recording / reproducing device including the recording medium conveying device.

Further, in the recording medium carrying device in which the positioning engagement grooves are formed in the guide rail member, a wire member facing the guide rail member and parallel to the guide rail member is provided. When the movement of the recording medium is guided in cooperation with the guide rail member, the simplification and downsizing of the device structure of the recording / reproducing device including the recording medium conveying device can be achieved. Can be planned.

That is, according to the present invention, the engagement and the disengagement of the recording medium can be surely performed in conjunction with the conveying operation of the recording medium without complicating the structure.
The present invention can be applied to a disc changer device to provide a suitable recording medium conveying device.

[Brief description of drawings]

FIG. 1 is a perspective view showing an appearance of a disc changer device configured by applying the present invention.

FIG. 2 is a perspective view showing a configuration of a turntable mechanism of the disc changer device.

FIG. 3 is a front view showing a part of the structure of the turntable mechanism in a partially cutaway and transparent manner.

FIG. 4 is a side view showing a part of the structure of the turntable mechanism in a partially cutaway and transparent manner.

FIG. 5 is a plan view showing the structure of the turntable mechanism in a transparent manner.

FIG. 6 is a plan view showing a state in which a magazine for disc cartridges is mounted on the turntable mechanism in a see-through manner.

FIG. 7 is a plan view showing the shape of a Geneva gear that constitutes the turntable mechanism.

FIG. 8 is a plan view showing a state where the Geneva gear is rotated by 15 °.

FIG. 9 is a plan view showing a state where the Geneva gear is rotated by 22.5 °.

FIG. 10 is a plan view showing a state where the Geneva gear is rotated by 45 °.

FIG. 11 is a perspective view showing a configuration of a disc cartridge magazine in the disc changer device.

FIG. 12 is a rear view showing the configuration of the disc cartridge magazine.

FIG. 13 is a side view showing a state in which a disc cartridge is inserted into and ejected from the disc cartridge magazine, a part of which is cut away.

FIG. 14 is a plan view showing a state in which a disc cartridge is inserted into and ejected from the disc cartridge magazine with a part thereof broken away.

FIG. 15 is an enlarged cross-sectional view of a main part showing a state of an engaging member when a disc cartridge is inserted into the disc cartridge magazine.

FIG. 16 is an enlarged transverse cross-sectional view of a main part showing a state of an engaging member during a disc cartridge insertion operation into the disc cartridge magazine.

FIG. 17 is an enlarged transverse cross-sectional view of a main part showing a state of the engaging member when the operation of inserting the disc cartridge into the disc cartridge magazine is completed.

FIG. 18 is an exploded perspective view showing a configuration of a disc drive portion of the disc changer device.

FIG. 19 is a partially cutaway plan view showing the configurations of the disc drive unit and the disc cartridge magazine.

FIG. 20 is a plan view showing a structure of a mechanism for transporting a disk cartridge of the disk drive unit, with a part thereof broken and transparent.

FIG. 21 is a plan view of the essential parts showing the configuration of the essential part of the mechanism for carrying the disk cartridge of the disk drive section.

FIG. 22 is a plan view showing a structure of a drive unit of a mechanism for transporting a disc cartridge of the disc drive unit, with a part of the drive unit cut away and seen through.

FIG. 23 is a front view showing a configuration of a main part of a mechanism for transporting a disk cartridge of the disk drive section, with a part thereof broken and seen through.

FIG. 24 is a front view showing the structure of a mechanism for carrying the disc cartridge of the disc drive section, with a part broken away and seen through.

FIG. 25 is a front view showing the structure of the disk drive part with a part broken away and seen through.

FIG. 26 is a side view showing a configuration of a drive unit of a mechanism for transporting a disc cartridge of the disc drive unit with a part thereof broken and seen through.

FIG. 27 is a side view showing in perspective a structure of a main part of a mechanism for carrying the disc cartridge of the disc drive unit.

FIG. 28 is a side view showing a state where a mechanism for conveying a disc cartridge in the disc drive section conveys the disc cartridge, as seen through.

FIG. 29 is a side view showing the operation of the drive unit of the mechanism for conveying the disc cartridge of the disc drive unit, showing the initial state.

FIG. 30 is a side view showing the operation of the drive unit of the mechanism for transporting the disc cartridge of the disc drive unit, and showing the state in which the rotating body is rotated by 180 °.

FIG. 31 is a side view showing the operation of the drive unit of the mechanism for transporting the disc cartridge of the disc drive unit, showing the state in which the rotating body is rotated by 210 °.

FIG. 32 is a side view showing the operation of the drive unit of the mechanism for conveying the disc cartridge of the disc drive unit, and showing the state in which the rotating body is rotated by 420 °.

FIG. 33 is a side view showing the operation of the drive unit of the mechanism for conveying the disc cartridge of the disc drive unit, and showing the state in which the rotating body is rotated by 450 °.

FIG. 34 is a side view showing the operation of the drive unit of the mechanism for conveying the disc cartridge of the disc drive unit, and showing the state in which the rotating body is rotated by 760 °.

FIG. 35 is an exploded perspective view showing a configuration of a mechanism for chucking a disc of the disc drive unit.

FIG. 36 is a plan view showing a structure of a mechanism for chucking a disk of the disk drive unit, with a part thereof broken and transparent.

FIG. 37 is a front view showing a structure of a mechanism for chucking a disc of the disc drive unit in a see-through manner.

FIG. 38 is a front view showing a state where the mechanism for chucking the disc of the disc drive unit chucks the disc in a see-through manner.

FIG. 39 is a side view showing a structure of a mechanism for chucking a disc of the disc drive unit in a see-through manner.

FIG. 40 is a side view showing a state in which the mechanism for chucking the disc of the disc drive unit chucks the disc in a see-through manner.

FIG. 41 is a side view showing a configuration of one surface side of a power transmission gear of a mechanism for chucking a disc of the disc drive section.

FIG. 42 is a plan view showing the structure of a power transmission gear of the mechanism for chucking the disc of the disc drive section in a cutaway manner.

FIG. 43 is a side view showing the configuration of the other surface side of the power transmission gear of the mechanism for chucking the disc of the disc drive section.

FIG. 44 is a perspective view showing a partially broken structure of the elevator mechanism of the disc changer device.

FIG. 45 is a front view showing the structure of the elevator mechanism by partially breaking and seeing through.

FIG. 46 is a plan view showing a part of the structure of the elevator mechanism in a partially cutaway and transparent manner.

[Fig. 47] Fig. 47 is a front view showing a configuration of a main part of the elevator mechanism with a part broken away and seen through.

FIG. 48 is a plan view showing a configuration of a main part of the elevator mechanism with a part cut away and seen through.

FIG. 49 is a side view showing the structure of the elevator mechanism partially broken away.

FIG. 50 is an enlarged front view of an essential part showing the configuration of the position sensor of the elevator mechanism.

FIG. 51 is an enlarged front view of essential parts showing a state where the elevator mechanism is operated in the position sensor of the elevator mechanism.

FIG. 52 is a waveform diagram showing an output signal obtained with the operation of the elevator mechanism in the position sensor of the elevator mechanism.

FIG. 53 is a perspective view of the structure of a recording / reproducing disc cartridge used as a recording medium in the disc changer device as seen from the upper surface side.

FIG. 54 is a perspective view of the structure of a read-only disc cartridge used as a recording medium in the disc changer device as seen from the upper surface side.

FIG. 55 is a perspective view showing the configuration of the recording / reproducing disk cartridge as viewed from the bottom side.

FIG. 56 is a perspective view showing the configuration of the reproduction-only disc cartridge as seen from the bottom side.

[Explanation of symbols]

 67 wire member 70 guide rail member 77 inner positioning engagement groove 78 outer positioning engagement groove 94 plunger 96 operation lever 97 tension coil spring 98 moving plate 99 positioning lever 100 engagement lever 110 positioning pin 106 operation arm portion 115 engagement portion 320 recording Playback-use disc cartridge 321 Play-only disc cartridge

Claims (4)

[Claims] 1. A moving member supported so as to be movable in a recording medium conveying direction, a pair of parallel positioning engagement grooves formed along a moving path of the moving member, and a moving member on the moving member. A positioning pin that is composed of at least one member that is movably disposed and that selectively engages one of the positioning engagement grooves; a position that engages the recording medium according to the position of the positioning pin; Engaging means having an engaging part that is moved over a position where the engagement with the recording medium is released, and an arranging part that faces the end of the positioning engaging groove, and the moving member is moved. When the positioning pin comes out of the positioning engagement groove, operating the engagement means,
A recording medium conveying device comprising: an operation mechanism for engaging the engaging portion with the recording medium or releasing the engaging portion with the recording medium. 2. The operating mechanism has an operating arm portion that abuts on the positioning pin to move the positioning pin, and the operating arm is an elastic member, and the engaging portion engages the positioning pin with the recording medium. Is elastically biased in a direction to move the positioning pin against the biasing force of the elastic member by the electromagnetic drive device so that the engagement portion engages the recording medium with the positioning pin. The recording medium conveying device according to claim 1, wherein the recording medium conveying device is operated to move in a direction to be released. 3. The positioning rail according to claim 1, wherein each positioning engagement groove is formed on a guide rail member arranged along a conveyance path of the recording medium for guiding the movement of the recording medium. 2. The recording medium conveyance device according to item 2. 4. A wire member facing the guide rail member and parallel to the guide rail member, wherein the wire member cooperates with the guide rail member to guide the movement of the recording medium. 3. The recording medium conveying device according to item 3.