JPS5816539B2 - Recording and playback method for multiple recording discs housed in a case, recording disc, recording disc housing case, and recording/playback machine - Google Patents

Description

[Detailed Description of the Invention] This invention involves stacking a plurality of recording discs and storing them in a storage case, setting the case in the 'IX recording/playback machine,
The present invention relates to a method for reproducing a plurality of recording discs housed in a case for the purpose of selecting and recording and reproducing a desired recording disc in the case, a recording disc, a recording disc storage case, and a recording/playback device.

Conventional technology that allows you to select and play multiple discs while keeping them in a case is to push up the disc that overlaps the disc that is to be played, together with the lid, and push it up with the disc that should be played. It is known that a pickup is inserted between the sound disc and the sound is played back (Japanese Patent Application Laid-Open No. 1983-1978).
No. 902).

However, the above technology does not take into account the locking of the case or the stable maintenance of the music disc housed within the case, and is not suitable for carrying.

However, in this invention, since a locking device is provided on the case, there is no risk that the upper and lower cases will separate during handling, resulting in the arrangement of the discs being messed up.Moreover, the lock can be released by placing the case on the player. Therefore, the above-mentioned conventional problems are solved without any hassle during use.

That is, to explain this invention in terms of an embodiment, a recording groove 2 is provided over a predetermined width on the outer circumference of the disc body 1, and 12 recording grooves are installed in order to insert the recording disc holding protrusions 4j4 provided on the case into the inside of the recording groove 2. Holes 3 and 3 are drilled at equal intervals on the same circumference,
On the inside thereof, there are ten selection rods 7゜7 with the outside having a large diameter for insertion of the large diameter selection rod 5 and the inside having a small diameter for insertion of the small diameter selection rod 6, and the insertion for the dog diameter rod. Holes 8 and insertion holes 9 for small-diameter rods are provided radially at equal intervals, a guide shaft hole 10 is provided in the center of the disc body 1, and a shaft protrusion 11 is provided at the edge of the guide shaft hole 10.
A recording board A is constructed by providing 12 setting grooves 12.

Next, the storage case B for the recording disc A is constructed by combining the same case members 13, 13 made of synthetic resin and shaped like rectangular plates.

A guide hole 14 is provided in the center of the case member 13, an insertion groove 15 for the shaft protrusion is provided on the edge of the shaft hole, and ten pieces of the same shape and size as those provided on the recording disc A are provided on the outside thereof. selection rod holes 16, 16, and insertion holes 17 for large and small selection rods 5.6
, 18 are installed radially at equal intervals, the protrusions 4, 4 and the protrusion insertion holes 19, 19 are provided diametrically symmetrically on the outside thereof, and a recess 20 necessary for housing the recording disc is provided in the center,
Hooking pieces 21 and 21 for locking the upper and lower case members are rotatably attached to the four corners of the case member 13, respectively;
A bullet piece 22.22 is connected to one end to form a hanging end 23 of the hanging piece.
, 23 are provided so that a protrusion for rotating the locking end outward can be inserted into the protrusion insertion holes 24, 24. 25, the latching pieces 21° and 21 rotate and the latches are released, so that the case B is unlocked.

Latching pieces 21.2 provided on the upper and lower case members, respectively.
1 is in a state where one side is permanently shaped due to the rotational force applied by the bullet pieces 22 and 22) (the hooking piece of the upper case member shown by the chain line in FIG. (below the hook piece of the case member).

In addition, in the recording/playback device C, a rotary disk 29 is rotatably installed in the center hole 28 of a fixed plate 27 fixed to the upper surface of the cabinet 26, and a projection piece 2 for unlocking the case is attached to the periphery of the rotary disk 290.
5 and 25 are implanted diametrically symmetrically, a recess 30 is provided in the center of the rotary disk, a guide shaft 32 is fixed to the center of the mouth cover plate 31 of the recess, and the guide shaft 32 is operated. Insert the rod 33, insert the lower part of the operating rod 33 into the protruding part 30, fix the plate 34 horizontally to the lower end, and attach large and small diameter selection rods 5° and 6 to the plate 34 at predetermined intervals. stick vertically.

The large and small diameter selection rods 5 and 6 are placed on diametrically opposite sides with their spacing regulated so that they can be inserted into the selection rod holes provided in the recording disc A and the case B.

Of course, the selection rods 5 and 6 may have the same diameter and do not necessarily have to be located diametrically symmetrically, but it is necessary that they correspond to the selection rod holes.

A mounting piece 35 is suspended from the lower surface of the mouth cover plate 31.

A spring 36 for holding the plate body is fixed to the mounting piece 35.

On the periphery of the plate 340, there are numbers (
For example, in the case of 10 sheets, 12 recesses 73 are provided at equal intervals, and the lower ends 36a of the springs 36 abut against the recesses to maintain the selected rotation angle at an accurate pitch.

A pickup arm 37 (
The base of the recording/playback head arm (same below) is rotatably and vertically attached to the magnetic sheet, and a guide plate 38 for guiding the tip of the pickup arm 37 is mounted on the other side of the fixed plate 27 so as to be vertically movable. Install.

This guide plate 38 is attached to a fixed guide frame 39, and the tip of the pickup arm 37 is movable within the fixed guide frame.

Based on the above embodiment (which is a recording disc with recording grooves),
This invention will be explained in detail.

First, when case B is placed on the rotary disk and the protrusion 25 on the rotary disk is inserted into the protrusion insertion hole 24 of case B, one side edge of the locking piece 21 installed on the lower case member The peripheral wall of the projecting piece 25 pushes against the bullet piece 22, and the hanging end 2 of the hanging piece 21 is pushed as shown by arrows 40 and 41 in FIG. 13 or 14.
3 rotates around the mounting shaft 42 as indicated by the chain line 23a in the same figure, so that the locking ends 23 of the upper and lower case members 13 change from the locked state as shown in a in FIG. 12 to the unlocked state as shown in b in FIG. The case member 13 is now in a state where it can be freely opened and closed.

Then, turn the knob 43 on the operating rod 33 and
When it is lifted up to the position indicated by the chain line 43a, the large and small diameter selection rods 5 and 6 are also lifted in the same direction via the plate 34 fixed to the lower end of the operating rod 33.

In this case, the large and small diameter operating rods 5 and 6 are connected to the lower case member 13.
When the selected rod hole is inserted into the recording disk and it comes into contact with the recording disk in the states 5a and 6a shown by the dashed lines in FIG. 15, the recording disk cannot be inserted, so the recording disk above the recording disk and the upper case The member 13 is lifted to be in the state shown in FIG. 1 or the chain line in FIG. 4.

In this case, the upper end 36b of the spring 36 fits into the recess 73 of the plate 34, so that the plate 34 is held in the raised position.

Therefore, the tip side of the pickup arm 37 is moved in the direction of arrow 45 in FIG.
(It does not necessarily have to be the entry point) or after stopping at the extreme end 48 position, push down the operating rod 49 in the direction of the arrow 50 (in Fig. 6) to move the guide plate 38 as shown in Fig. 7. When the pickup arm 37 is lowered in this manner, the playback needle 51 fixed to the pickup arm 37 comes into contact with a predetermined position on the recording disc.

Then, when the motor 52 is started, the rotary disk 29 is rotated via the pulley 53, belt 54, pulley 55, 56, belt 57, and pulley 58 (as shown in Figure 3), so that regeneration can be performed in the usual manner. .

In the above, since the pickup arm 37 was set at three locations at 46, 47° and 48 in Fig. 6, when the information recorded on the same side of the recording disc is divided into sections, which one of them will be used? It can also be played back as a starting point.

If you have 15 minutes of recording per side, you can divide the disc into 5-minute increments and play it freely from the middle, and if the recording disc becomes larger, it will not be limited to 3 equal parts. The selection range of the playback start point can be expanded by dividing into 4 to 6 equal parts or more.

In the above, when the operating piece 49 is pressed down and the lever 59 is rotated in the direction of the arrow 60 to lower the guide plate 38, the latch piece 61 protruding from the guide plate 38 locks onto the guide frame 39 (FIG. 7). The guide plate 38 is held in the lowered position by being engaged with the latching protrusion 63 of the latching plate 62 rotatably attached to the guide plate 38.

When the operation piece 49 is slightly lowered in this state, the guide plate 3
8 is also slightly lowered, the latch protrusion 63 and the latch piece 61 are unlatched, and the latch plate 62 is moved to the arrow 64 by the spring 65.
The lever will move automatically in the direction of the spring 6.
6 to rotate in the direction of arrow 67 and raise the guide plate 38.

In other words, the guide plate 38, which is once latched at a lower position due to the lower pressure of the operation piece 490, is raised again by the lower pressure.

Further, an entry part 68 is provided at the upper part of the guide shaft 32, and a restraining piece 69 is rotatably attached to the entry part, and is accommodated in a groove part 71 provided at the upper part of the operating rod 33 by a spring 70, and the knob 4
3, the groove 71 of the operating rod also rises, so the restraining piece 69 projects outward from the outer wall of the guide shaft against the spring 70, thereby preventing the upper case member from coming off.

Further, when the operating rod is located at the lowest position, the desired mark 72 provided on the side wall of the knob 43 is aligned with the shaft protrusion 11 of the guide shaft 32.
When these are combined, the selection lever faces the position where the desired recording disc is selected, so by simply lifting the operation lever, the recording disc to be recorded or played back can be easily selected.

As described above, the top side of each recording disk can be used for recording or playback, but the bottom side cannot be recorded or played back as is.

Therefore, by inverting the case and repeating the above operation with the bottom side of the recording disc facing upward, it is possible to reproduce both the upper and lower sides of the recording disc.

If 10 selection rod holes are provided as in the above embodiment, 10 recording discs can be stacked and housed in a case, and any side of the discs can be freely selected for recording and reproduction.

Furthermore, since the position of the selection rod cannot be changed unless the operating rod is being lowered, there is no risk of the recording disc being disturbed while the operating rod is being lowered.

The reason why one side of the selection rod was made relatively large in diameter was to improve stability when supporting the recording disk.

However, when the case is lifted from the rotary disk, the protrusion 25 comes out from the protrusion insertion hole 24, so the latch piece 21 of the lower case member returns to its original position (the solid line a position in FIG. 12) by the elastic piece 22. However, the locking pieces 21, 21 of the upper and lower case members overlap one another and are automatically locked, thereby locking the case.

Therefore, when handling the case removed from the recording/reproducing machine, there is no fear that the content recording disc will come off and become cluttered, and there is no fear that the combined case members will come apart.

Furthermore, since the recording disks are inserted into the protrusions of the case member at a predetermined angle (for example, 30 degrees) when being stored, as long as the case is closed, there is no fear that the relative positions of the recording disks will shift, and the recording disks can be lifted during recording and playback. In this case, the protruding pieces of the guide shaft are inserted into the insertion grooves of each recording disc to maintain their relative positions, so that once the recording discs have been made into cassettes, they always maintain their predetermined relative positions. become.

For example, 10 recording discs with a thickness of 0.2 mm are 2 mm, and even considering the thickness of the case, the thickness is approximately 5 cm or less.

If one recording disc can store 30 minutes of information on both sides, 10 discs can store 300 minutes (5 hours) of information.

Therefore, when studying, it is possible to create cassettes for each specific unit and organize them in a relatively small space, just like a textbook.

One of the features of this invention is that it is easy to search.

For example, if there are 3 searches per side, 6 searches are possible for one disc, and 60 searches are possible for 10 recording discs.

Searching has been extremely difficult in the conventional reproduction of recording discs with recording grooves or magnetic sheets.

In the case of loose magnetic tape, searching using a counter is known, but not only is the accuracy difficult to achieve, the search method differs depending on the type of recorder/player, and the counter must always return to zero. There were also operational problems such as not being able to do so.

However, in the present invention, it is not only possible to perform a search every time a recording disc changes, but also to perform a relatively accurate search even on the same recording surface by selecting the position of the arm for the recording and reproducing member.

In the embodiments, a recording disc with recording grooves and a reproducing machine therefor have been described, but magnetic sheets are also within the scope of the present invention.

That is, according to the method of the present invention, it is possible to select any one side of a plurality of recording discs and record and play them back.Moreover, there is no need to change the recording discs, and the recording discs can be stacked in a predetermined order. Since it can be recorded and played back, it has various effects such as being able to quickly select the necessary parts during repeated learning.

In addition, since the recording disc of the present invention has installation holes, setting holes, and insertion holes, it has the effect of always maintaining a constant relative position not only in a stacked state but also in a partially lifted state. It made it possible.

Next, according to the case of the present invention, since the upper and lower sides have the same shape, it is possible to manufacture the case member with a negative mold, and even when the case is reversed to change the upper and lower sides, it can be set under the same conditions, and the upper and lower sides can be set under the same conditions. Since the locking device of the case member is activated when it is removed from the rotating disc, there is no risk that the arrangement of the recording disc will be disrupted during handling.

Next, according to the recording/playback device of the present invention, the case can be unlocked by setting the case, so it is easy to select the recording disc desired for recording/playback, and an instruction section is provided on the guide plate of the recording/playback member arm. Since this is provided, recording and playback can be started from the middle.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the reproducing machine of the present invention in a reproducing state;
Figure 2 is a partially perspective view of Figure 1 with the upper recording disc and case member removed, Figure 3 is an enlarged front view with the same part cut away, and Figure 4 also shows the recording disc in a lifted state. Partially enlarged cross-sectional view, Figure 5 is also an enlarged plan view, Figure 6
7 is an enlarged side view showing the guide plate in the lowered state, FIG. 8 is a plan view of the case, and FIG. 9 is a front view of the case. 1
Figure 0 is a plan view with the upper case member removed, and Figure 11
FIG. 12 is a partially enlarged plan view showing the locking state of the locking device for the upper and lower case members.
3 is a partially enlarged plan view showing a state in which the locking piece is rotated downward by the projecting piece, FIG. 14 is a partially enlarged plan view showing a state in which the locking piece is rotated upward by the projecting piece, and FIG. 15 The figure is a plan view of the recording disc, FIG. 16 is a sectional view, FIG. 17 is a plan view of the plate, and FIG. 18 is an enlarged sectional view with the bullets omitted to show the locking state of the locking device. . 1...disc body, 2...recording surface, 3...
...Installation hole, 4゜4a...Protrusion, 5...
...Large diameter selection rod, 6...Small diameter selection rod, 7.
...Selection rod hole, 8, 9...Insertion hole, 10
...Guide shaft hole, 11 ... shaft projection piece, 12
... Setting hole, 13 ... Case member, 1
4... Guide shaft hole, 15... Insertion groove, 1
6... Selection rod hole, 17, 18... Insertion hole, 19, 19a... Protrusion insertion hole, 20...
... Recessed part, 21 ... Latching piece, 22 ...
...Bullet piece, 23...Latching end, 24...
Projection insertion hole, 25... Projection, 26...
Case, 27... Fixed plate, 28... Central hole, 29... Turning disc, 30... Recessed part, 31... Old part cover, 32... guide shaft, 3
3...Operating rod, 34...Plate body, 35.
...Mounting piece, 36...Spring, 37
...Pickup arm, 38...Guide plate, 39...Guide frame, 40, 41, 44, 4
5゜50.60,64,67...arrow, 42.
...Installation; Shaft, 43...Knob, 46,4
7... Most part, 48... One end part, 49.
...Operation piece, 51...Regeneration needle, 52...
...Motor, 53, 55, 56, 5B...
・7"-IJ-154, 57...Belt, 59
... Lever, 61 ... Latching piece, 62.
...Latching plate, 63...Latching protrusion, 65
, 66...Spring, 68...Main part, 69...Suppression piece, 70...Spring, 71...Groove, 72... ...Inbe, 7
3...Recessed part.

Claims (1)

[Scope of Claims] 1. Set the case onto the reproducing machine, and insert the protruding piece protruding from the rotary disk of the reproducing machine into the protruding piece insertion hole of the case, thereby moving the locking piece and opening the case. By removing the lock and then lifting the separation selection rod according to the sorting conditions set in advance for the recording discs stacked in the case, the discs that are less than the recording disc to be recorded or played are left behind. A plurality of recordings housed in a case characterized in that the upper recording disc is lifted together with the upper half of the case, and a recording or playback member is set on the uppermost recording surface of the residual recording disc to record or play. How to record and play discs. 2. The recording and playback method for a recording disc according to claim 1, characterized in that the front and back sides of the recording disc are recorded or played back by setting the recording case upside down. 3. The method for recording and reproducing a recording disk according to claim 1, wherein the recording or reproducing member is set by selecting the recording and reproducing position by providing a plurality of initial setting positions of the arm. 4 Provide a recording surface over a predetermined width on the outside of the disc body, provide a guide shaft hole in the center, provide a plurality of setting grooves radially around the periphery of the guide shaft hole for inserting the shaft protrusions, and a plurality of selection rod holes with one side having a large diameter for insertion of a large diameter selection rod and the other side having a small diameter for insertion of a small diameter selection rod;
A pair of insertion holes for a large-diameter selection rod and an insertion hole for a small-diameter selection rod are provided at equal intervals and radially in a number smaller than the set number of grooves, and protrusions are fitted to securely hold the recording disc in the case. - A recording disc characterized by a plurality of installation holes provided at equal intervals on a concentric circumference. 5. The recording disc according to claim 4, wherein the selection shed has an outer side for a dog diameter rod and an inner side for a small diameter rod. 6. The recording disc according to claim 4, wherein the pair of insertion holes are arranged diametrically symmetrically. 7 A guide shaft hole is provided in the center of each of the upper and lower case members that make up the case, an insertion hole for the shaft protrusion is provided on the edge of each hole, and a selection rod hole of the same shape and size as the recording disc is provided on the outside of the hole. are provided radially, and further provided with a protrusion to be inserted into the installation hole of the recording disc and a through hole for the protrusion, so that the central part serves as a recessed part necessary for housing the recording disc, and the other case member is hooked to the peripheral part. A locking piece to which a rotational force is applied is installed so that the locking piece is locked to each other, and a protruding piece insertion hole is provided in the case member for rotating the locking piece against the rotational force to release the locking. A recording disk storage case characterized by: 8. Recording disc storage case according to claim 7, characterized in that the rotational force is applied by bullet pieces. 9. A patent characterized in that the hooking pieces are installed at four inner corners of the case member. A recording disc storage case according to claim 7. A protrusion for unlocking the recording disc storage case is planted on the upper periphery of the 10-rpm disc, and a recess is provided in the center of the rotary disc, and an operating rod is installed in the recess so that it can be raised and lowered to operate the disc. A plate body is fixed horizontally to the lower end of the rod, and separation selection rods are installed vertically on the plate body at intervals corresponding to the separation selection rod holes of the recording disk, for use as a recording/playback member for a recording disk placed on a rotary disk. 1. A recording/playback device, characterized in that the base end of the arm is set on one side of a cabinet, and the guide plate of the arm for the recording/playback member is installed on the other side of the cabinet so as to be movable up and down. 11. The recording and playback according to claim 10, characterized in that the separation selection rod has a small diameter on the side closer to the operation rod and a large diameter on the side far from the operation rod, and is implanted on the plate at the lower end of the operation rod. Machine. Claim 10, characterized in that the operating rod is provided with a locking device for holding the lowered position and the raised position.
Recording/playback device as described in section. 13. The recording/playback device according to claim 10, wherein the guide plate of the arm for the recording/playback member is provided with an indicator indicating the playback start position of the arm.