JPH067452Y2 - End device for cassette player - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Industrial Field of the Invention The present invention, in a cassette player having an auto-reverse function, makes it possible to select whether to eject a cassette pack immediately by operating an eject switch or at the end of a tape. The present invention relates to a terminal ejection device for a cassette player.

2. Description of the Related Art In recent years, auto-reverse type cassette players have become mainstream as vehicle-mounted cassette players. The auto-reverse type cassette player automatically reverses the running direction of the tape at the end of the tape and continues playing the tape. Once the cassette pack is inserted, it continues until the pack is forcibly ejected. Since the tape is played by a tape player, there is no need to reverse the cassette pack at each end of the tape and reload it like a non-reverse type cassette player, and it is extremely practical from the viewpoint of driving safety as an in-vehicle cassette player. It is a target.

However, when ejecting the cassette pack, the cassette pack is ejected at the end of the tape to prevent damage to the tape recording surface, deterioration of sound quality due to direct contact of the magnetized surface with air, and slackening of the tape due to temperature. However, if you try to eject the cassette pack at the end of the tape with an auto-reverse type cassette player,
Since the cassette pack must be ejected after confirming the detection of the end of the tape, the operation becomes troublesome. Especially, in the case of an in-vehicle cassette player, the operation of confirming the end of the tape and the operation of the eject switch ensure safe operation. There was also a risk of being damaged.

Therefore, conventionally, a mode setting switch that selectively switches between a mode in which the cassette pack is automatically ejected when the end of the tape is detected and a mode in which the tape is automatically reversed to continue playing the tape is provided, and according to this mode setting state, There has been a cassette player configured to selectively control the automatic reversing operation and the ejecting operation when the end of the tape is detected.

However, the automatic reversing operation and the ejecting operation are selectively controlled according to the mode setting state when the end of the tape is detected. Even if there is, an erroneous operation in which the cassette pack is automatically ejected at the end of the tape due to an erroneous setting of the mode by the mode setting means easily occurs. It is necessary to switch the mode setting switch each time the pack is inserted or ejected, and the frequency of operating the switch becomes high, resulting in a decrease in operability. The present invention has been made in view of the above-mentioned conventional problems, and the operation of automatically ejecting a cassette pack at the end of the tape is controlled in association with the pressing of the eject switch so that the tape can be discharged at the end of the tape. An object of the present invention is to provide a cassette player end discharge device having excellent operability, which prevents an erroneous operation of accidentally discharging a cassette pack.

Means for Solving the Problems In order to achieve the above object, the present invention provides an eject switch for instructing the ejection of a cassette pack, a tape end detection circuit for detecting the tape end, and a cassette pack at the tape end. A mode setting means for setting an end discharge mode for discharging, a high-speed tape drive mechanism for fast-forwarding or rewinding the tape, and a control section for controlling the discharge of the cassette pack according to the mode setting state of the mode setting means. When the eject switch is operated and the end setting mode is set by the mode setting means, the control unit starts the tape high speed drive mechanism and detects the end of the tape to eject the cassette pack. It is a terminal discharge device of a cassette player characterized by being controlled so as to perform.

According to the present invention, when the cassette pack is inserted while power is supplied to the cassette player, the power switch is turned on and the cassette player starts playing. If you want to change the performance of another cassette pack and listen to the performance during this performance, if you operate the eject switch (press), the mode setting switch will eject the cassette pack at the end of the tape. , The high-speed drive mechanism is activated to fast forward or rewind the tape,
The tape is wound around one reel, and when the end of the tape is detected, the cassette pack is ejected. If the mode setting switch is not set to the end discharge mode, the cassette pack is immediately discharged by operating the eject switch. In this way, the operation of automatically ejecting the cassette pack at the end of the tape is performed in connection with the operation of the eject switch, so that the cassette pack is prevented from being accidentally ejected at the end of the tape during normal tape performance. Further, the operability is improved because it is not necessary to selectively switch the mode setting switch each time the cassette pack is inserted or ejected.

Embodiment of the Invention Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing an embodiment of the present invention.

As shown in FIG. 1, 1 is a mode setting switch for setting a mode for ejecting the cassette pack at the end of the tape, 2
Is an eject switch for instructing the ejection of the cassette pack, and 3 is an A / B surface detection switch for detecting whether the mounting surface is the A surface or the B surface when the cassette pack is loaded.
The surface detection switch 3 may be, for example, Syokai 59-1217.
As shown in No. 39, a device which detects a screw hole provided in the cassette pack and detects whether the mounting surface is the A surface or the B surface may be used. In this case, when the mounting surface of the cassette pack is the A surface, the detection switch 3 is in the ON state, and when the mounting surface is the B surface, it is in the OFF state. 4 and 5 are fast forward / rewind by manual operation (F respectively
FF, REW switch for instructing F, REW),
A tape drive mechanism 6 drives the tape by the rotation of the motor M. The idler 10 is selectively meshed with the reel gear 8 or the reversing gear 11 by the operation of the plunger P1.
The rotation of the motor M is transmitted to the reel gear 8 or the reel gear 9 to drive the tape reel (not shown). The high speed drive of the tape is performed by increasing the rotation speed of the motor M. P1 is a switching plunger for the idler 10 and operates according to the conduction state of the transistor Q1. P2 is a cassette pack ejection plunger, which is a transistor Q2.
It operates according to the conduction state of. H1 and H2 are Hall elements that generate pulse signals with a cycle corresponding to the rotation of a pair of tape reels (not shown) that rotate together with the reel gears 8 and 9, 12 is a pack insertion switch, and 7 is a control unit microcomputer. Then, a control signal is output to the transistors Q1 and Q2 and the motor M according to the state of the input signal from each switch, and tape drive control and cassette pack ejection control are performed.

Next, the operation of FIG. 1 will be described with reference to FIG.
FIG. 2 is a flowchart of the processing executed by the microcomputer 7.

When a cassette pack is inserted into the cassette player, the pack insertion switch 12 is turned on, power is supplied to the cassette player, and the tape is driven at a constant speed to be in a playing state. At this time, the microcomputer 7 gives a control signal to the motor M to drive the tape at a constant speed, turns off the transistor Q1 to render the plunger P1 inoperative, and causes the idler 10 to mesh with the reel gear 8. Set the cassette pack mounting surface side to the playing state. After that, the microcomputer 7 reads the input state (low state) each time each switch is turned on (step S1) and performs control according to the operated switch.
The control when the REW switch 5 and the REW switch 5 are turned on is the same as that of a generally known cassette player, and the description thereof is omitted here. When the mode switch 1 is turned on (step S2), the microcomputer 7 inverts the state of the flag F1 in the memory every time the switch 1 is turned on (steps S3 to S5). That is, if the current state of the flag F1 is "0", it is changed to "1", and if it is "1", it is changed to "0". This flag F1 is for judging the setting state of the end ejection mode in which the cassette pack is ejected at the end of the tape. When the flag F1 is "1", the end ejection mode is set. When the eject switch 2 is turned on, the process moves from step S6 to step S7, and the microcomputer 7 detects the state of the flag F2 in the memory. The flag F2 is for determining whether or not the end ejection operation of the cassette pack is currently in the end ejection mode. When the flag F2 is "1", the end ejection operation is in progress.
If the flag F2 is "1", the microcomputer 7 proceeds to step S8 and step S9 to eject the cassette pack, which will be described later. If it is determined in step S7 that the flag F2 is not "1" (F2 = 0), then it is determined whether the flag F1 is "1" (step S10), and F1 = 1, that is, the terminal discharge mode is set. If so, the process proceeds to step S11, and if F1 = 0, the process proceeds to step S9 to immediately eject the cassette pack.
The ejection operation of this cassette pack is
This is done by applying a high control signal to the base terminal of transistor Q2 to turn on transistor Q2 and activate plunger P2. In step S11, A /
The B-side detection switch 3 determines whether or not the mounting surface of the currently loaded cassette pack is the A-side, and then the current tape traveling direction is left traveling (hereinafter referred to as L traveling) or right traveling (hereinafter referred to as L traveling). , R traveling) is determined (steps S12 and S13). Since the tape traveling direction is L traveling or R traveling is determined by the state of the control signal sent from the microcomputer 7 to the transistor Q1, the microcomputer 7 determines the state (high or low) of the control signal to the transistor Q1. Can detect the current tape running direction. That is, when the base terminal of the transistor Q1 is low, the plunger P1 does not operate, the idler 10 meshes with the reel gear 8, and the tape runs L. Further, the transistor Q1 has a plunger P when the base terminal is in the high state.
1 operates, the idler 10 meshes with the reversing gear 11, and the tape runs R. When it is determined in steps S11 to S13 that the cassette pack mounting surface is the A surface and not the L traveling (R traveling), and the mounting surface is not the A surface (B surface) and the L traveling is determined. If it is determined that the mounting surface is the A surface and the L traveling, on the other hand, the mounting surface is not the A surface (the B surface).
When it is determined that the vehicle is not L traveling (R traveling), the process proceeds to step S15 and the REW operation is performed. In the FF and REW operations, as described above, the transistor Q1 is controlled to be turned on and off, the idler 10 is engaged with the reel gear 8 or the reversing gear 11 by the operation of the plunger P1, and the motor M is controlled to increase the rotation speed. Made by speeding up. Then, the process proceeds to step S16 and the flag F2 is changed to "1". After that, when the end of the tape is detected when the pulses emitted from the Hall elements H1 and H2 are interrupted, that is, the signals emitted from the Hall elements H1 and H2 are kept in the high state or the low state for a predetermined time (step S18), it is determined whether the flag F2 is "1", that is, whether the terminal discharging operation is in progress. If it is "1", the process proceeds to step S20, and the cassette pack is discharged similarly to the operation of step S9. , Flag F2
Is set to "0" (step S21) and the process returns to step S1. In step S19, the flag F2 is not "1" (F2 =
If it is determined to be 0), step S10 to step S16
Since the trailing end discharging operation is not being performed by the process of 1., that is, because the trailing end is detected in the normal playing state or in the FF and REW states, the tape running direction is reversed to continue the playing operation, and the process returns to step S1. Here, after the flag F2 is changed to "1" in step S16 and it is set that the trailing end discharging operation is being performed, if the eject switch 2 is turned on again until the trailing end of the tape is detected, the steps S6 to S7 are performed. After that, the process moves to step S8 and the flag F2 is set to "0".
Immediately after changing to, eject the cassette pack.
(Step S9). As a result, the mode setting switch 1
Even if the erroneous operation is performed to set the terminal discharge mode, it is possible to immediately discharge the cassette pack by turning on the next eject switch 2. Further, the end discharge operation may be canceled (F2 = 0) even when other switches such as the FF switch 4 and the REW switch 5 are turned on during the end discharge operation (F2 = 1). Further, in this example, when the cassette pack is discharged at the end, the A / B surface of the cassette pack is detected, and the FF or REW operation is performed by judging the tape traveling direction. The performance can be started from the first song on the side B or the side B (the first song on the side A in this example).

The present invention is not limited to this embodiment, and for example, the mode setting switch 1 may be a lock type switch for maintaining the ON state. In this case, the flag F1 is controlled to "1", and the flag F1 is controlled to "0" when the mode setting switch 1 is off. In addition, a mode setting switch 1 is newly added as a mode setting means.
Need not be provided, and the eject switch 2 may be operated two times in succession, for example. That is, if the eject switch 2 is pressed twice within a predetermined time, for example, 2 seconds, the end ejection mode is set and the FF and REW control (steps S7 to S16) shown in the flowchart of FIG. Control (steps S19-S21)
It is also possible to do.

Further, the mode setting means may be such that the terminal discharge mode is set by pressing the eject switch for a predetermined time (for example, 1 second) or more.

Effects of the Invention As described above in detail, according to the present invention, the operation of automatically ejecting the cassette pack at the end of the tape is configured to be performed in association with the operation of the eject switch. Unless the switch is operated
The cassette pack is not ejected at the end of the tape regardless of the mode setting status.This prevents the cassette pack from being mistakenly ejected at the end of the tape during normal tape playing. Operability is improved because there is no need to selectively switch the mode setting switch.

[Brief description of drawings]

FIG. 1 is a block diagram showing an embodiment of the present invention, and FIG. 2 is a flowchart of processing executed by the microcomputer 7. In the figure, 1 is a mode setting switch, 2 is an eject switch, 3 is an A / B surface detection switch, 6 is a tape drive mechanism, 7 is a microcomputer, 8 and 9 are reel gears, 10 is an idler, 11 is a reversing gear, 12 Is a pack insertion switch, H1 and H2 are Hall elements, Q1 and Q2 are transistors, P1 and P2 are plungers, and M is a motor.

Claims (4)

[Scope of utility model registration request] 1. An eject switch for instructing the ejection of a cassette pack, a tape end detection circuit for detecting the tape end, a mode setting means for setting an end ejection mode for ejecting the cassette pack at the end of the tape, and a tape The tape high-speed drive mechanism for fast-forwarding or rewinding, and a control section for controlling the ejection of the cassette pack according to the mode setting state of the mode setting means, the control section being operated by the eject switch and When the end discharging mode is set by the setting means, the tape high speed drive mechanism is activated, and the end of the tape is detected to control the discharging of the cassette pack. . 2. The end ejection device for a cassette player according to claim (1), wherein the mode setting means is a switch. 3. The end ejection device for a cassette player according to claim (1), characterized in that the mode setting means operates the eject switch a plurality of times. 4. The end ejection device for a cassette player according to claim (1), characterized in that the mode setting means operates the eject switch for a predetermined time or more.