JPS6139969A - Cassette automatic reproducing device - Google Patents

Abstract

PURPOSE:To reduce a time up to reproduction and to attain smooth reproduction by adopting the constitution that a cassette is mounted to a cassette deck by having only to turn the cassette deck to the cassette drawn out of a cassette case to a moving stand. CONSTITUTION:A Geneva gear 18 is driven attanded with the turning of an Geneva turning gear 16, the cassette deck 10 is driven in the closing direction via an operating lever 10a engaged with a slot 18b of the Geneva gear 18 and a cassette in a cassette guide plate of a moving stand is loaded finally. That is, a reel shaft is fitted in a reel of the cassette and also a capstan is inserted into a capstan hole of the cassette. Then a pin 16c is detached from the slot 18b of the escape wheel 18 while the cassette is loaded and the pin 16c closes a cassette deck detecting switch S2. Thus, a control circuit interrupts power application to a motor 12 to bring the cassette deck into the reproducing state. Thus, the time up to the reduction is reduced and the reproduction is smoothed.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an apparatus for automatically and continuously reproducing a plurality of tape cartridges.

[Technical background and problems of the invention]

Conventionally, as this type of automatic regeneration device, Japanese Patent Application Laid-Open No. 58-1
There are devices disclosed in Japanese Patent Nos. 21171 to 121174.

In this four-position system, the cassette is stored in a cassette case horizontally in the height direction, the cassette deck moves vertically, the part of the cassette that protrudes from the case is pulled out by a roller, and the cassette is placed on the cassette deck. It is meant to be moved.

For this reason, it takes a very long time to play (there is a drawback that it requires constant force and a part of the set must be exposed from inside the cassette case, so the protruding part may get in the way when carrying it. When the cassette is installed in the cassette deck, the cassette is completely removed from the cassette case, so if the position shifts even slightly when returning the cassette to the cassette case at the end of playback, the cassette cannot be returned to the cassette case. The drawback was that it was difficult.

[Purpose of the invention]

The present invention was made in view of the points on paper, and its purpose is to attach the cassette to the cassette deck simply by rotating the cassette deck with respect to the cassette that has been pulled out, so that the cassette can be played from the cassette drawer. To provide an automatic cassette reproducing device which can extremely shorten the time required for reproducing cassettes and can quickly reproduce the cassettes.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view, FIG. 2 is a sectional front view, FIG. 3 is a sectional side view, and FIG. 4 is a plan view.

In the same drawing, 1 indicates gauging, la, l
b is the left and right side plates, 1c is the back plate, 1d is the top plate, and 1e is the bottom plate. '2, 3 are screw gears ('2, 3') bearing on the left and right side plates 1a, lb, and stretched between the left and right side plates 1a, lb.
The sprockets 2a and 3a are fitted to one end (on the right side plate lb side) of the two-thread screw. 4 is the right side plate 1
A sprocket 4a is also fixed to the back surface of the large gear which is pivotally supported by a pin 1f implanted in the large gear. A timing belt 5 is wound between this sprocket 4a and the sprockets 2a and 3a of the screw gears 2 and 3. Reference numeral 6 denotes a motor screwed to the right side plate 1b, and a gear 6a fixed to its rotating shaft is connected to the large gear 4.
It is meshed with. Reference numeral 7 denotes a disk fixed to the front surface of the large gear 4, and has, for example, eight black and white slits formed on its surface. A substrate 8 on which a light emitting element, a light receiving element, and necessary circuits are attached is mounted on the opposite surface of the disk 7.
is screwed to the right side plate 1b via a spacer 8a.

Therefore, when the motor 6 is driven and the large gear 4 rotates, the light from the light emitting element is irradiated onto the disk 7, the light reflected by the white slit reaches the light receiving element, and the light is transmitted to the large gear 4 by the light receiving element.
It outputs a pulse signal according to the amount of rotation.

Reference numeral 9 denotes a movable table to which threaded pipes 9a and 9b, which are connected to the threaded gears 2 and 3, are fixed at both front and rear ends, and a cassette guide plate 9C is formed. Further, above the cassette guide plate 9C of the movable table 9, a thin cassette deck 10 is attached so that it can be opened and closed using its upper edge as a fulcrum.

Note that 10a is an operating lever fixed to the cassette deck 10, and by displacing this operating lever 10a, the cassette deck 10 moves toward the moving platform 9 (closed state) or moves away from the moving platform 9 (open state). ).

Reference numeral 11 denotes a mounting plate screwed to the moving table 9, on which is attached a control member for controlling the cassette deck 10 and a cassette lifting mechanism to be described later. That is, the motor 12, the worm wheel 13 that meshes with the worm 12a attached to the rotating shaft of the motor 12, the intermediate gear 14 that meshes with the worm wheel 13, and the intermediate gear 1.
A small gear 1 meshed with a small gear integrally formed in 4.
5, and a small gear 15 integrally formed with the small flat gear 15.
a pair of general tooth rotation gears 16 that are engaged with the general tooth rotation gears 16a of the general tooth rotation gears 16;
A guide hole 19a is inserted into the pin ita implanted in the mounting plate 18 and the mounting plate 11, and a slide plate 19 that is slidable in the vertical direction is attached.

The general tooth rotation gear 16 has two pins 16b and 1
6c is implanted, and as the general tooth rotating gear 16 rotates, the pins 16b and 16C are engaged with the grooves 17a and 18a of the general teeth 17 and 18, and the general teeth 17 and 18 are rotated. . In addition, a pin 17b is implanted in the general tooth 17, and this pin 17b is connected to 119b of the slide plate 19.
is engaged with. Furthermore, another groove 18b is formed in the general tooth 18, and the operating rod 10a of the cassette deck 10 described above is engaged with this groove 18b.

Sl is a start end detection switch fixed to the right side plate 1b, and S2, which is turned on by the protrusion 11b when the mounting plate 11 moves to the right end (starting end), is a deck set detection switch fixed to the mounting plate 11. Then, the pin 16C of the general tooth rotation gear 16 turns on. S3 is mounting plate 1
The cassette return detection switch is fixed at 1 and is turned on when the slide plate 19 is raised. S4 is a switch fixed to the cassette deck 10 for detecting the presence or absence of a cassette.

20 to 24 are pins 1 implanted in the back plate 1c described above.
A tension spring 20a is tensioned between the pin 1g and the lower end of the intermediate plate supported by g y 1 h so as to be movable up and down. Although the spring 20a in FIG. 1 is shown tensioned only on the intermediate plate 20, springs are similarly tensioned on the other pins 21 to 24, and constantly push the intermediate plates 20 to 24 downward. There is. Then, when the movable table 2 moves and the slide plate 19 is located on the intermediate plate 20, and the slide plate 19 is lowered, the intermediate plate 20 is lowered against the spring force of the spring 20a. Note that the intermediate plates 21 to 24 also move down corresponding to the movement position of the slide plate 19.

Reference numeral 25 denotes a partition plate fixed within the casing 1, and a short guide protrusion 25a is formed at approximately the middle part on the inlet side, and a support base 25b is formed at the bottom part on the inlet side. Furthermore, the above-mentioned left side plate 1a facing the partition plate 25 has a guide strip 11 formed at a different level from the guide protrusion 25a. Note that this guide strip 11 is formed over the entire length in the depth direction.

Reference numerals 26 to 30 are abbreviated pivot levers rotatably supported on a shaft 31 stretched between the partition plate 25 and the left side plate 13, and each short piece 26a to 30a is connected to the intermediate plate 20 to 24
It is in contact with the bottom edge of. Therefore, when the intermediate plates 20-24 are lowered, the rotating levers 26-30 in contact with the intermediate plates 20-24 are rotated counterclockwise in FIG. 1 about the shaft 31 as a fulcrum.

Reference numeral 32 designates a cassette case for storing the tape cassette C, and the guide protrusion 25a described above is inserted into the guide groove 32a, the guide line 11 is inserted into the guide groove 32b, and the bottom surface is placed on the support stand 25b and guided. Ru. In addition, 3
2c is a handle portion.

The front and rear inner wall surfaces of this cassette case 32 are formed with a middle partition 32d that partitions the cassette C to be inserted, and an insertion groove 32e into which the protrusions Cl formed on both sides of the cassette are inserted. has been done. Further, from the back to the bottom of the cassette case 32, the above-mentioned rotary lever 2 is provided.
An insertion hole 32f into which 6 to 30 are inserted is formed. Therefore, if the cassette C is inserted with the tape surface facing upward in the space partitioned by each partition 32d, five cassettes C can be set in the case shown in FIG. 6 (FIG. 6). Note that when setting the cassette C, the protrusion c1 of the cassette C is guided by the insertion groove 32e, so if the cassette C is inserted upside down, the protrusion c1 will come into contact with the insertion groove 32e. As a result, only a portion of the tape side of the cassette C can be inserted (FIG. 7). Therefore, there is no possibility of setting the cassette C incorrectly.

Then, with the loaded cassette case 32 stored in the case 1, the rotation lever 26 is moved by the above-described operation.
is rotated, one cassette C in the cassette case 32 is pushed up as the rotation lever 32 is rotated.

Next, the operation will be explained based on the above structure.

First, insert the cassette tape C into the cassette case 32 with the tape side facing up as described above, and then insert the guide protrusion 25a and the guide line 1i into the case 1 into the guide groove 32a +
32b is guided and inserted all the way until it is locked by a locking mechanism (not shown).

Next, when a playback button (not shown) is operated, the motor 6 starts rotating, but when the start end detection switch S+ is not in the ON state, that is, the mounting plate 11 is not at the right end position and the protrusion 11b presses the switch S1. When the motor 6 is at an intermediate position where it is not in the middle position, the motor 6 is
starts rotating in reverse.

When the motor 6 rotates in reverse, the screw gears 2 and 3 synchronously rotate in reverse via the large gear 4 and the timing belt 5, so that the screw pipes 9a and 9 connected to the screw gears 2 and 3
b moves to the right. As a result, the moving table 9 moves to the right, and the mounting plate 11 also moves to the right so that the protruding piece 11b is moved to the right by the switch S.
Move to the right until + is closed. Then, when the protruding piece 11b closes the switch S+, the motor 6 starts to rotate forward in response to a signal from the control circuit.

When the motor 6 starts rotating in the normal direction, the screw gears 2 and 3 rotate in the normal direction via the large gear 4 and the timing belt 5, and the moving table 9 starts moving to the left. Further, as the large gear 4 rotates, the disk 7 also rotates, and the light receiving element inputs a pulse signal corresponding to the rotation of the disk 7 to the sending control circuit. The control circuit counts these pulse signals and cuts off the power to the motor 6 when a preset number of pulse signals has been counted. At this time, the moving table 9 is located on the rightmost cassette C in the cassette case 32, and the slide plate 19 corresponds to the intermediate plate 20. Therefore, when the cassette C is lifted up, the cassette C is lifted up by the cassette guide plate 9 of the moving table 9.
It will be inserted into C.

Next, the control circuit cuts off the power supply to the motor 6 and simultaneously starts supplying power to the motor 12. When the motor 12 starts to be energized, the general tooth rotary gear 16 is rotated clockwise via the worm wheel 13, intermediate gear 14, and Kodaira gear 15. At this time, the pin 1fl of the general tooth rotating gear 16
+b, groove 17a of general tooth 17.18 in both 16C,
18a is not engaged. Therefore, cassette deck 1
0 is in the open state (Figure 8).

Then, the motor 12 rotates, the general tooth rotation gear 16 is rotated clockwise, and the pin 16b is inserted into the groove 17' of the general tooth 17.
When engaged with a, the general tooth 17 is rotated counterclockwise as the general tooth rotation gear 16 rotates. Therefore, the pin 17b provided on the general tooth 17 allows the slide plate 1 to
9 is lowered, and as a result, the intermediate plate 20 is lowered against the spring force of the spring 20a (FIG. 9). As a result, the rotary lever 26 rotates, and its tip abuts against the back surface of the cassette C through the insertion hole 32f of the cassette case 32, pushing up the cassette C and inserting it into the cassette guide plate 9C of the movable table 9.

Further, when the general tooth rotating gear 16 is rotated, the pin 16
b separates from the groove 17a of the general tooth 17, but the general tooth 1
'7 is engaged with the general teeth 16a of the general tooth rotation gear 16, and rotation is prevented and the gear is stopped.

Then, the general tooth 17 of the pin 16b of the general tooth rotating gear 16
At the same time as the other pin 16C is removed from the groove 17a of the pin 16C, the other pin 16C is engaged with the groove 18a of the general tooth 18 (FIG. 9). Therefore, as the general tooth rotation gear 16 rotates, the general tooth 18 is rotated, and the operating rod 1'Oa engaged with the groove 18b of the general tooth 18 is rotated.
The cassette deck 10 is rotated in the closing direction through the cassette deck 10, and the cassette C is finally mounted in the cassette guide plate 9c of the moving table 9. That is, the reel shaft is fitted into the reel of the cassette C, and the capstan is inserted into the capstan hole of the cassette C. When the cassette C is installed, the pin 16C is inserted into the groove 1 of the general tooth 18.
8b, the pin 16C closes the deck set detection switch S2. As a result, the control circuit cuts off the power to the motor 12 and the cassette deck 1.
0 into the playback state (Figure 10).

The case where the cassette deck 10 is in the closed state and the force detection switch S4 does not detect the cassette C, that is, the case where the cassette C is not stored at the rightmost end of the cassette case 32, will be described later. do.

The above playback is performed and the end of the tape is placed on cassette deck 1.
0 is detected (including both single-sided and double-sided playback), or when a stop button (not shown) is operated, the control circuit energizes the motor 12 in the opposite manner to the above, and the motor 1
2 starts rotating in reverse.

When the motor 12 is reversed, the general tooth rotating gear 16 is reversed, firstly the general tooth 18 is reversed to open the cassette deck 10, and the cassette C is removed from the cassette deck 10. Next, the general teeth 17 are reversed and the slide plate 19 is raised. Therefore, the intermediate plate 20 carries its own weight and the spring 2
It rises due to the spring force of 0a, and along with this, the rotating lever 2
6 is turned over by the weight of the cassette C, and the cassette C returns into the cassette case 32. Note that even when the cassette C↓ is pushed up by the rotating lever 26 and is at the highest position, the back of the cassette C remains inside the cassette case 32, so that the cassette C can be lowered smoothly even when lowered. The cassette case 32 is then quickly returned to the cassette case 32.

Then, when the slide plate 19 is in the raised position with the cassette C completely housed in the cassette case 32, the cassette return detection switch S3 is turned on. As a result, the control circuit cuts off the power supply to the motor 12 and starts supplying power to the motor 6 again. When the motor 6 is energized and begins to rotate forward, the light receiving element sends out a pulse signal as the disk 7 rotates. Therefore, the control circuit detects this pulse signal, and when a preset pulse signal is counted, the power supply to the motor 6 is cut off. At this time, mobile platform 9
The cassette guide plate 9C is moved to the second cassette C position. Then, the control circuit energizes the motor 12 again, and by the same operation as above, the motor 12 is energized again.
The cassette C is guided into the cassette guide plate 9C, the cassette deck 10 is closed, the cassette C is loaded, and playback is started.

The above operation is repeated, but if the cassette C is not inserted into the cassette guide plate 9C when the cassette deck 10 is closed, the cassette presence/absence detection switch S4 is closed. A signal indicating that there is no regeneration is sent to the control circuit, and the control circuit immediately rotates the downstream 12 in the reverse direction and performs the same operation as in the above-mentioned reproduction end state.

The above explanation of the operation was from the initial state when the cassette case 32 was set, but if the stop button was operated during playback last time, the operation would stop with the cassette C still attached to the cassette deck 10. Different. Therefore, switch S1 is in an open state.

In this state, when the playback button is operated again, the control circuit energizes the motor 12, which rotates in the reverse direction to return the cassette C to the cassette case 32, and the cassette deck 10 is opened.

Then, the motor 6 is energized, and the motor 6 rotates in the reverse direction to move the moving table 9 to the right and return to the initial state. Therefore, the switch S1 is turned on, and the above-described operation is started from this state.

Next, the control circuit will be explained with reference to the rod 11 diagram. In addition, FIG. 12 is a plan view of the operation/display part, and 33 indicates a play button, a stop button, various special buttons, and a program center cycle, and 34 indicates a display unit that displays the operating status of the cassette deck 10. It shows.

In FIG. 11, reference numeral 35 denotes a control circuit such as a microcomputer, which receives signals from the cassette presence/absence detection switch S4 and the tape end detection switch of the cassette deck 10, and on the other hand puts the cassette/notebook/tsuki in a play state or a stop state. Make it.

Furthermore, the motors 6 and 12 are stopped in the forward and reverse directions by a signal from the control circuit 35. When the operation button 33 is operated, the control circuit 35
outputs a control signal to this device and the cassette loader 10. Further, the display section 34 displays the status of the cassette deck 10 based on the output from the control circuit 35. The pulse signal is a pulse signal from a light receiving element that detects the rotation speed of the disk 7, and the control circuit 35 controls the motor 6.12 while comparing the number of pulse signals with a preset value.

Further, the control circuit 35 controls the motor 6.12 and the cassette deck 10 based on the on/off signals of the switches 81 to S3.

Next, the operation of the control circuit will be explained.

The operation is as shown in the flowchart shown in FIG. That is, when the playback button is operated, the start end detection switch S1
Chart a) to judge whether the switch S1 is on or not.
is off, the moving table 9 is not at the initial position and is stopped at the position at the previous end, and the motor 12 is rotated in the reverse direction (chart b) assuming that the cassette C is attached to the cassette deck 10. When the cassette is returned to the cassette case 32, the switch S3 for detecting the return of the cassette is turned on (Chart C). Thereafter, the motor 6 is reversed (chart d), and the moving table 9 is moved backward. Then, when the start end detection switch S1 is turned on, the movable table 9 is set to the initial position, and the process moves to the next step.

When the switch S1 is turned on, the program is set and it is determined whether the tape to be played first is reserved or not (chart f). If the reservation is not made, the mokuro is rotated in the forward direction and the movable base 9 is moved. At the same time, the rotation speed of the motor 6 is sent out as a pulse signal by the light receiving element (chart g). Then, a preset number of pulse signals are counted, that is, when the number of pulse signals when the cassette deck 10 reaches the first position in the cassette case 32 is counted, the motor 6 is stopped. (Chart h).

On the other hand, even if a tape is reserved, if the motor 6 is rotated forward in the same way as described above, pulse signals are counted (
Chart i). Then, when the count of this pulse signal matches the movement of the cassette deck 10 to the position set by reservation, the motor 6 is stopped (chart j
).

Next, the motor 6 is rotated normally (chart k), and the cassette C is loaded onto the cassette deck 10.

Here, if there is a cassette C, the cassette presence/absence detection switch S4 is turned on (chart 1). And cassette C
When the installation is completed, the deck detection switch S2
is turned on (chart m), and the cassette deck 10 is put into the playback state (chart n).

When the playback progresses and the end of the tape is reached (including both one-sided playback and double-sided playback), detect this (chart n), rotate the motor 12 in the reverse direction (chart p), and turn the cassette deck 10.
At the same time, the cassette C is returned to the cassette case 32. As a result, the cassette return detection switch S3 is turned on (chart q), so the motor 12 is stopped and the motor 6 is rotated forward or backward (chart r).
When the number of pulse signals that the cassette deck 10 has moved to the position of the next cassette C is counted (chart S), it returns to the position of chart (chart) k and performs the same operation.

In the chart β, if the switch S4 for detecting the presence or absence of a cassette is not turned on, that is, if there is no cassette C, the process advances to the chart p and the next cassette C is detected.
Proceed to playback.

〔Effect of the invention〕

As described above, in the present invention, the cassette deck is rotatably attached to a moving platform that moves on the cassette case, and the cassette deck is simply rotated relative to the cassette pulled out from the cassette case to the moving platform using a rotating lever. Since the cassette can be mounted on the cassette deck, the time from when the cassette is taken out of the cassette case to when it is played can be greatly shortened, and the playback can be carried out smoothly.

[Brief explanation of the drawing]

The figures show an embodiment of the automatic cassette playback device according to the present invention, in which Fig. 1 is an exploded perspective view, Fig. 2 is a sectional front view, Fig. 3 is a sectional side view, Fig. 4 is a plan view, and Fig. 5 is an exploded perspective view. The figure is a side view of the cassette and the cassette deck drive unit, Figure 6 is a perspective view of the cassette case, Figure 7 is a cross-sectional side view of the same as above, and Figures 8 to i.
10 is a front view showing the operating state of FIG. 5, FIG. 11 is a block diagram of the control circuit, surface 12 is a surface view of the operating unit, and FIG. 13 is a flowchart of the control circuit. ■...Casing, 2, 3...Screw gear, 6, 12
...Motor, 7.Disc, 9.Moving table, 10.
...Cassette deck, 11...Mounting plate, 16...General tooth rotating gear, 17.18...General tooth, 19...Slide plate, 26-30...Rotating lever, 32...・Cassette case, Sl-S4...switch, 35...
control circuit. Patent Applicant Pioneer Corporation Figure 5 Figure 6 32e 32f Figure 8 Figure 10 Figure 11 Figure 12

Claims (1)

[Claims] A cassette case that is removably inserted into the casing and has a plurality of cassettes stored therein, a moving base having a cassette guide that moves on the cassette case in response to a command from a control circuit, and a moving base that rotates around the moving base. It is movably pivoted and rotates when a cassette is inserted into the cassette guide, pushing out the cassette deck to which the cassette is mounted and the cassette in the cassette case at the position to which the moving table has been moved from the bottom side. An automatic cassette playback device comprising: a rotary lever inserted into the cassette guide; and a drive means for controlling rotation of the rotary lever and the cassette deck.