JPH0445160Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field The present invention relates to a disk autoloading device and is suitable for optical writing, reproducing devices, and the like.

(b) Conventional technology In recent years, optical disks have been used as disks for high-density recording and playback.
In order to protect its surface from scratches, dust, etc., it is desirable to store it in a cartridge and to be able to automatically load it into a recording/reproducing device.

By the way, in the case of such an automatic disk loading device, as in Utility Application No. 60-7440 (Utility Model Application No. 126453) filed earlier by the present applicant, the disk is first turned in the holder. After holding it higher than the table and inserting the holder into the device,
The holder is lowered and the disc is attached to the turntable.

(c) Problems to be solved by the invention In such a configuration, when the holder is lowered, the pick-up and the disc will be at an appropriate distance, that is, the focus of the pick-up can be adjusted, and the disc will be placed optimally on the turntable. The holder must be positioned so that it rests on the

An object of the present invention is to provide a device that can optimally set the state and position of such a holder by simple adjustment.

(d) Means for Solving Problems The autoloading device of the present invention comprises: a box-shaped cartridge for storing a disk; a frame-shaped first holder for holding the cartridge inserted through an opening at one end; a frame-shaped second holder that covers and slidably holds the first holder;
a holder arm extending from one end to approximately the center on both outer surfaces of the holder, one end rotatably held and the other end swingably holding approximately the center of both side surfaces of the second holder; At the other end of the holder arm, there is a rotary roller with an eccentric spindle that is movable in the vertical direction and positioned at an appropriate height, and a rotary roller that moves linearly while holding the roller and adjusts the holding height of the roller. a first slide rack for vertically displacing the first holder within a predetermined range; a second slide rack for moving linearly to slide the first holder; and a second slide rack disposed at a predetermined position below the second holder. support legs, wherein the first holder is slid together with the cartridge in the second holder by movement of the second slide rack, and after the cartridge is inserted into the second holder, the first slide As the holding height of the roller decreases as the rack moves, the holder arm is rotated, and the second holder is lowered almost horizontally together with the cartridge, so that the cartridge is placed on the support leg. It is characterized by having been configured.

(E) Effect According to the present invention, the rotation angle of the holder arm that rotates to lower the second holder holding the disk cartridge is determined by the eccentric spindle of the roller with the eccentric spindle provided on the holder arm. By rotating it and shifting it vertically as appropriate,
considered to be the optimal angle.

(f) Embodiment FIGS. 1 to 3 are side sectional views showing an embodiment of the present invention, in which FIG. 1 shows a state in which the disk cartridge is not inserted, and FIGS. 2 and 3 show a state in which the disk cartridge is not inserted. Each shows the state of different main parts when the loading of the tray is completed.

In these figures, 1 is a front panel, 2 is a horizontally elongated insertion slot bored in the front panel, 3 is a cartridge which has two pairs of openings 3a and 3b on both upper and lower surfaces, and stores a disk 3d inside, and 4 is a cartridge. A frame-shaped first holder that holds a cartridge 3 and is arranged such that its distal end opening closely faces the insertion port 2 in a steady state (the state shown in FIG. 1); 5 are bored on both sides of the rear end of the first holder; The slide pin 6 is a frame-shaped second holder that is longer than the first holder 4,
The second holder 6 slidably holds the first holder 4 by inserting the slide pins 5 into long holes drilled on both sides thereof, and the opening at the tip of the second holder 6 also opens when the slide pins 5 are inserted into the slots in the steady state. Closely facing mouth 2. Reference numeral 7 denotes a holder arm having a U-shaped cross section and arranged to cover the front upper part of the second holder 6. At the lower end of the support leg 7a hanging down from both sides of the rear end of the holder arm, An eccentric support shaft 7b that can eccentrically rotate and a roller 7d rotatably disposed on the eccentric support shaft are provided. Specifically, the eccentric support shaft 7b has an eccentric relationship with the screw protrusion 7.
c, and the protrusion passes through the support leg 7a and is fastened with a nut (not shown). Therefore, the eccentric support shaft 7b rotates when the bolt is loosened, and conversely, when the bolt is tightened, it is fixed so as not to rotate. Reference numeral 8 denotes a support shaft provided on both sides of the rear end of the holder arm 7, which swingably holds both sides of the second holder 6 at approximately the center thereof. 9 is a frame, and 10 is a shaft that rotatably supports both sides of the tip of the holder arm 7 on the frame.

A first shutter 11 is supported by a shaft 12 and is always biased to rotate so as to close the insertion port 2; A holding piece for holding, 14
is a second shutter having a U-shaped cross section and provided protruding from the upper surface of the tip of the second holder 6 in the direction of the insertion opening 2;
Reference numeral 15 denotes a hinge connecting the rear end of the second shutter and the top surface of the tip of the second holder 6;
The second shutter 14 is rotated counterclockwise so that the front end surface 14a of the second shutter 14 is substantially parallel to the front panel 1.

16 is a plate-shaped first slide rack that has a gear rack on its lower surface and is arranged parallel to the holder arm 7; 17 is a long hole provided laterally at the rear of the first slide rack; 18 is a first slide rack. 16
This long hole is provided in the horizontal part 18a at a height position that holds the holder arm 7 horizontally, an inclined part 18b that descends forward from the horizontal part, and an inclined part 18b that descends from the horizontal part. Continuing horizontal section 18c
Consisting of Reference numeral 19 has a gear rack on the lower surface, and a plate-shaped second slide rack is disposed inside and parallel to the second slide rack 16. Reference numeral 20 projects below the second slide rack and engages with the elongated hole 17. The pin 21 is an elongated hole provided vertically in the second slide rack 19 and engaged with the slide pin 5. The first slide rack 16 and the second slide rack 19 are slidably held on both sides by holding members (not shown), and are moved in the left-right direction by a motor (not shown).

Further, reference numeral 22 denotes a first holder having a U-shaped cross section and disposed upwardly extending from the rear end of the second holder 6 to approximately the center thereof.
A clamp arm 23 is a clamper 24 swingably provided on the lower surface of the tip of the first clamp arm.
25 is a cut-and-raised piece formed by cutting and raising the rear upper surface of the first clamp arm 22 upward;
26 is a second clamp arm having a U-shaped cross section and is disposed rearwardly and downwardly of the first clamp arm 22;
Cut and raise piece 24 at the tip of the clamp arm
27 is a support shaft provided between the frames 9, which rotatably holds both sides of the rear end of the first clamp arm 22 and supports the second clamp arm 22. Both sides of the rear end of 25 are held rotatably. 28 is a spring stretched between the cut-and-raised piece 24 and the tongue piece 26 so as to draw each piece together; 29 has one end attached to the support shaft 8;
The connecting rod is rotatably fixed to the second clamp arm 25, and the other end is rotatably fixed to the side surface of the second clamp arm 25.

Furthermore, 30 is a support leg disposed below the second holder 6, 31 is a spindle motor having a turntable 32 on its rotation axis, and 33 is a pickup.

The operation of the front loading device with such a configuration will be explained below.

As shown in FIG. 1, in a steady state, the first shutter 11 is rotationally biased to close the insertion opening 2, and the opening at the tip of the first holder 4 faces the insertion opening 2.

In this state, insert the cartridge 3 into the first holder 4 while pushing open the first shutter 11 from the insertion slot 2.
When the rack is inserted to a certain extent, a rack moving motor (not shown) rotates, and both the first slide rack 16 and the second slide rack 19 move linearly to the right. As the second slide rack 19 moves, the first holder 4, which has the slide pin 5 that engages with the elongated hole 21, moves to the right inside the second holder 6. This movement continues until the cartridge 3 is completely inserted into the front panel 1. Furthermore, due to the subsequent movement of the first slide rack 16, the roller 7b moves into the elongated hole 18.
It moves from the horizontal part 18c at a high position to the horizontal part 18c at a low position via the inclined part 18b. As the roller 7b moves, the holder arm 7 moves toward the shaft 10.
Rotate a predetermined angle clockwise around . As a result, the first holder 4 can move the slide pin 5
is engaged with the elongated hole 21 and descends almost horizontally together with the second holder 6, so that the cartridge 3
falls almost horizontally and its lower surface abuts the support leg 30.

Here, the descending distance of the cartridge 3 is determined by the rotation angle of the holder arm 7. If the rotation angle of the holder arm 7 is smaller than a predetermined angle, the descending distance of the cartridge 3 will be small, and the lower surface of the cartridge 3 will not come into contact with the support leg 30, so that the stability of the cartridge 3 will deteriorate. Conversely, when the rotation angle of the holder arm 7 is larger than the predetermined angle, the descending distance of the cartridge 3 becomes large, and the lower surface of the cartridge 3 is pressed against the support leg 30 with a large force, so that the cartridge 3 is deforms into contact with the optical disk 3d,
Furthermore, there is a possibility that the cartridge 3 may be damaged.

Therefore, in this embodiment, the position of the roller 7d can be changed up and down in order to make the rotation angle of the holder arm 7 a predetermined angle. That is, as described above, the roller 7d is supported by the eccentric support shaft 7b which can rotate eccentrically with respect to the support leg 7a of the holder arm 7 by rotating around the protrusion 7c. , by rotating the eccentric support shaft 7b,
The roller 7d moves vertically with respect to the support leg 7a. Therefore, the rotation angle of the holder arm 7 can be easily adjusted to a predetermined angle simply by appropriately eccentrically rotating the eccentric support shaft 7b and appropriately shifting the position of the roller 7d. Incidentally, when the adjustment of the roller 7d is completed, the eccentric support shaft 7b is fixed to the support leg 7a of the holder arm 7 using the previously described screw protrusion 7c.

Continuing the explanation of the operation of the autoloading device again, the connecting rod 29 descends in conjunction with the rotation of the holder arm 7 described above. Therefore, the second clamp arm 25 rotates counterclockwise together with the support shaft 27, and the spring 28 pulls the cut and raised piece 24. Therefore, the first clamp arm 22 rotates counterclockwise around the support shaft 27, the clamper 23 descends onto the cartridge 3, and cooperates with the turntable 32 to rotate the disk 3.
Press and hold d. At this time, the clamper 23 and turntable 32 are moved to the opening 3 of the cartridge 3, respectively.
The cartridge enters the cartridge 3 via a. In this state, the pickup 33 can perform recording and reproduction on the optical disk 3d through the opening 3b of the cartridge 3.

In addition, as the second holder 6 descends as described above, the second shutter 14 provided on the upper surface of the tip of the second holder 6 also descends, and the tip surface 14a of the second shutter 14 also descends.
is closing the insertion port 2.

In the above-mentioned embodiment, the roller 7d is moved up and down by the rotation of the eccentric support shaft 7b, but the present invention is not limited to this structure. The spindle of the roller 7d may be arranged in the hole so that it can be adjusted to a desired position.

(g) Effects of the invention According to the invention, the descending distance of the holder can be optimized by a simple operation simply by adjusting the position of the eccentric support shaft of the roller with the eccentric support shaft provided on the holder arm. I can do it.

[Brief explanation of the drawing]

Figures 1 to 3 each show an embodiment of the present invention, Figures 1 and 2 are side sectional views showing different states, and Figure 3 shows a different cross section in the same state as Figure 2. FIG. 3...Disk cartridge, 4...First holder, 6...Second holder, 7...Holder arm, 7b...Eccentric support shaft, 7d...Roller, 16...
...first slide rack, 19...second slide rack, 22...clamp arm, 29...connection rod.

Claims (1)

[Scope of utility model registration request] A box-shaped cartridge that stores a disk, a frame-shaped first holder that is inserted through an opening at one end and holds the cartridge, and a frame-shaped second holder that covers the first holder and slidably holds it. and extends from one end to approximately the center on both outer surfaces of the second holder, one end of which is rotatably held, and the other end of which is swingably held approximately at the center of both sides of the second holder. A holder arm, a rotating roller with an eccentric support shaft which is movable in the vertical direction and positioned at an appropriate height at the other end of the holder arm, and which moves linearly while holding the roller. a first slide rack for vertically shifting the holding height of the roller within a predetermined range;
a second slide rack that moves linearly to slide the first holder; and a support leg disposed at a predetermined position below the second holder; After the holder is slid together with the cartridge inside the second holder and the cartridge is inserted into the second holder, the holding height of the roller decreases as the first slide rack moves, thereby causing the above-mentioned An autoloading device characterized in that the holder arm is rotated so that the second holder is lowered substantially horizontally together with the cartridge, and the cartridge is placed on the support leg.