JPH02260259A - Tape recorder - Google Patents

Abstract

PURPOSE:To ensure a mode changeover operation and to promote the operability by bringing a reverse changeover means under its operation preventing state at the time of performing traveling of a tape at high speed with a high speed tape driving means. CONSTITUTION:A changeover control slider 50 is formed with a projection 50a capable of engaging with an engaging groove 25b, and the changeover control slider 50 is energized by an energizing member 51, and hence when a high speed lock lever 31 is operated by performing a high speed operation, the projection 50a is engaged with the engaging groove 25b. That is, when the high speed operation of fast forwarding and rewinding the tape is performed to operate the high speed lock lever 31, the projection 50a of the changeover control slider 50 is engaged with the engaging groove 25b, and an ASO manual slider 25 is prevented from moving, and then the reverse changeover operation is prevented. By this method, the changeover operations for the two modes should never take place, thus preventing mechanical locks, etc., from becoming out of order.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a tape recorder device.

(Prior Art) In recent years, tape recorder devices have become more compact and multifunctional. For example, a so-called auto-reverse function, which allows playback at least in the forward and reverse running directions of the tape, has been adopted.

As a means for switching the auto-reverse function and each tape mode in such a tape recorder device,
For example, a mechanical soft Dutch mechanism is used, and in this case, the rotation direction of the motor is always the same rotation direction, such as forward play, reverse play, fast forward (FF), and rewind (REW). They were the same.

Therefore, if the motor has sufficient power and the belt has sufficient transmission force, no particular problem will occur even if the power assist and high-speed components operate simultaneously. If there is not enough power to transmit the belt, a mechanism is used that releases the load during fast forwarding (FF) and rewinding (REW) only while the power assist cam is rotating.

Incidentally, in recent years, the motors used in the above-mentioned tape recorders (headphone type) tend to use brushless morphs in order to improve the performance of the set, and sensorless brushless morphs are also being used. These motors can be used in forward and reverse rotation, so
It is possible to simplify each mechanism in the tape recorder device.

For example, in the case of a device using electric logic, since the control is simple, it becomes possible to use a high-speed FF/REW system by changing the rotation direction, and it becomes possible to aim at a total cost reduction.

However, when using such a tape recorder device with the motor rotating in both forward and reverse directions, if the power assist rotation direction and the high speed (REW) rotation direction are opposite, if these simultaneous operations are performed, it will not work properly. There is a problem that it becomes impossible to operate.

(Problem to be Solved by the Invention) As described above, in the conventional tape recorder device, when the motor is used to rotate in both forward and reverse directions to operate each mechanism, for example, when multiple operations are performed simultaneously, However, there is a problem in that problems such as mechanical locks occur.

The present invention is intended to solve the above-mentioned conventional problems,
It is an object of the present invention to provide a tape recorder device that can perform mode switching operations favorably and reliably, and can improve operability.

[Structure of the Invention] (Means for Solving the Problems) The present invention includes a motor that rotates forward and backward, and a play assist that is driven by the motor and performs play assist when a play operation is performed to enter a tape play state. means, a reverse switching means for switching the tape running direction when a reverse operation is performed in the tape play state, and a reverse switching means selectively driven by forward and reverse rotation of the motor to cause the tape to run at high speed by fast forwarding and rewinding operations. and a reverse switching operation blocking means for preventing the reverse switching means from being operated when the tape is running at high speed by the tape high speed driving means.

(Function) In the present invention, the operation of the reverse switching means is prevented when the tape is traveling at high speed by the tape high-speed drive means.

Therefore, since the reverse switching operation is prevented during high-speed tape running, for example, when the tape is being fast-forwarded or rewound, the mode switching operation can be carried out favorably and reliably, and the operability can be improved.

(Example) Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view showing a tape recorder device according to an embodiment of the present invention, and FIG. 2 is a plan view from the back side of FIG.

In FIG. 1, 1 indicates a chassis.

A holder 2 is rotatably disposed on the chassis 1, and a reproducing head 3, a pair of pinch rollers 4.4, and the like are disposed on the holder 2. Further, on the chassis 1, a pair of capstan shafts 5.5 corresponding to the pinch roller 4.4 and a reel 6.6 corresponding to the hub of the cassette tape are arranged.

Further, as shown in FIG. 2, a motor 7 that rotates in both forward and reverse directions is disposed on the back surface of the chassis 1. The rotation of the motor 7 is controlled by a center pulley 9 via a drive belt 8.
, the right flywheel 10, the tension pulley 11, and the left flywheel 12. A center pulley gear 13 is formed on the center pulley 9, and a winding gear 14 is meshed with this gear 13. Thereby, the take-up gear 14 is rotated in both forward and reverse directions depending on the rotation direction of the motor 7. A power assist cam relay gear 15 is meshed with the winding gear 14, and the cam relay gear 1
5 is capable of meshing with the play cam gear 16, and when the cam lock lever 17 is operated by play operation or stop operation, the play cam gear 16 engages with the cam relay gear 15.
It is engaged with and rotated, thereby power assisting the play state and stop state.

Further, a high-speed gear 19 supported by a high-speed gear lever 18 is disposed near the take-up gear 14, and during a rewind operation (REW operation), the rotation of the take-up gear 14 is controlled by the high-speed gear 1.
9 to the left relay gear 20 and the left reel gear 21, and during a fast forward operation (FF operation), the rotation of the take-up gear 14 is transmitted to the right relay gear 22 and the right reel gear 23 through one high speed gear. .

Furthermore, a cam relay gear 24 of a reverse switching system is meshed with the take-up gear 14, and the ASO
When the manual slider 25 is moved, the reverse cam gear 26 is operated and the reversing cam gear 26 is engaged with the cam relay gear 24 and rotated, thereby performing a reverse operation.

Next, the high-speed mechanism for rewinding and fast-forwarding the tape described above will be explained using FIGS. 3 to 5. In addition,
These figures are plan views seen from the back side of FIG. 2, with the main chassis removed. Further, in these figures, parts common to those in FIG. 2 are given the same reference numerals and redundant explanations will be omitted.

As shown in FIG. 3, a bin 27 is formed on the high-speed gear lever 18 that rotatably supports one high-speed gear, and the bin 27 is operated by a switching cam 29 formed on the high-speed slider 28. . A switching lock groove 30 is formed in the high speed slider 28, and a pin 32 of a high speed lock lever 31 is engaged with the switching lock groove 30, thereby locking the switching position. Further, a switch actuation groove 33 is formed in the high-speed slider 28, and a movable piece 35 of a leaf switch 34 is engaged with this groove 33. Then, depending on the direction of movement of the high-speed slider 28 by reverse operation, it contacts one of the switch terminals 36a and 136b to control the direction of rotation of the motor 7. Furthermore, an engagement groove 37 for blocking a switching operation is formed in the high-speed slider 28, and a protrusion of a control slider activated by a play operation is engaged with this engagement groove 37 during a play assist operation. .

As shown in FIG. 4, in the high-speed mechanism configured as described above, when the high-speed slider 28 is moved to perform a rewinding operation (REW operation), the high-speed gear lever is activated by the switching cam 29 of the high-speed slider 28. 18 is activated, and one high-speed gear meshes with the take-up gear 14 and the left relay gear 20. Also, at this time, the movable piece 35 is moved and comes into contact with the switch terminal 36a, which causes the motor 7 to rotate in the counterclockwise direction, which is the forward rotation of the motor 7, and the winding gear 14 rotates in the forward direction due to the forward rotation of the motor 7. is rotated clockwise, and the left relay gear 20 is rotated clockwise via the high speed gear 19.
As a result, the left reel gear 21 is rotated counterclockwise,
The tape is rewound (REW).

Further, as shown in FIG. 5, when the high-speed slider 28 is moved to perform a fast-forward operation (F Fi 1 operation), the high-speed gear lever 18 is operated by the switching cam 29 of the high-speed slider 28, and one high-speed gear is set to take up the winding. It meshes with the gear 14 and the right relay gear 22. Also, at this time, the movable piece 35 is moved and comes into contact with the switch terminal 36b, which causes the motor 7 to rotate in the clockwise direction, which is the reverse rotation of the motor 7, and the winding gear 14 is rotated in the reverse direction due to the reverse rotation of the motor 7. The right relay gear 22 is rotated counterclockwise via the high speed gear 19, thereby rotating the right reel gear 23 clockwise, and fast forwarding (FF) of the tape is performed.

Next, the play operation mechanism will be explained using FIGS. 6 to 8, and the play assist mechanism will be explained using FIGS. 9 to 11. In these figures, parts common to those in FIGS. 2 to 5 are given the same reference numerals, and redundant explanations will be omitted.

The play operation mechanism, as shown in FIGS. 6 and 7,
When the play operation plate 38 is moved in the direction of the arrow A1 by the play operation, the first play lever 39 is rotated in the direction of the arrow B1, thereby the second play lever 40 is rotated in the direction of the arrow 82, and the trigger Slider 41 is arrow A
Moved in one direction. The trigger slider 41 is formed with a regulating pawl 42 that regulates the rotation of the cam lock lever 17, and the above-mentioned arrow A1 of the trigger slider 41
Due to the movement in the direction, the regulating pawl 42 comes off and the cam lock lever
17 rotates in the direction of arrow B2. As a result, the operating protrusion 17a of the cam lock lever 17 rotates the control lever 43 in the direction of arrow B1, thereby moving the control slider 44 in the direction of arrow C1. The control slider 44 is formed with a protrusion 44a for preventing a switching operation, and as the protrusion 44a moves in the direction of the arrow C1 described above, the protrusion 44a moves toward the high-speed slider 28.
It is engaged with an engagement groove 37 for blocking a switching operation formed in . Therefore, when this trigger is applied,
High-speed operation of REWSFF is now blocked.

Further, as shown in FIGS. 9 and 10, when the play operation described above is performed and the cam lock lever 17 is rotated in the direction of arrow B2, the cam relay gear 15 of FIG. As shown in FIG. 10, the cam 16a of the play cam gear 16 is pressed by the cam lock lever 17, and the play cam gear 16 is rotated counterclockwise. As a result, the play cam gear 1 is connected to the cam relay gear 15.
Gear No. 6 is engaged, the rotation of the take-up gear 14 is transmitted to the play cam gear 16 via the cam relay gear 15, and play assist is started. Then, as shown in FIG. 11, when the play cam gear 16 is rotated until the gear notch of the play cam gear 16 corresponds to the cam relay gear 15, the cam lock lever 17 is pressed by the cam 16a. is rotated in the direction of arrow B1 and returned.

Also, at this time, the play control lever 45 is rotated in the direction of arrow B1 by the cam of the play cam gear 16. As a result, a switching control lever, which will be described later, is moved to a switchable state.

As a result, the play operation mechanism, as shown in FIG.
The cam lock lever 17 is rotated in the direction of arrow B1 and returned to its original position, and thereby the control lever 43 is rotated in the direction of arrow B2, and the control slider 44 is moved in the direction of arrow C2, so that the protrusion 44a engages with the engagement groove of the high-speed slider 28. It's out of 37.

Further, by rotating the cam lock lever 17 in the direction of arrow 81, the bird slider 41 is moved in the direction of arrow A2,
As a result, the second play lever 40 is rotated in the direction of arrow B1, and the first play lever 39 is rotated in the direction of arrow B2.
rotated in the direction Then, the play operation board 38 moves to arrow A.
The play operation mechanism is returned by being moved in two directions.

Note that if you operate the high-speed mechanism in this state, the system will enter the queue review state.

Next, the reverse switching mechanism and the direction blocking mechanism will be explained using FIGS. 12 to 15. In these figures, parts common to those in FIGS. 2 to 11 are denoted by the same reference numerals and redundant explanations will be omitted.

As shown in FIGS. 12 and 13, in the reverse switching mechanism, when a reverse switching operation is performed while the tape recorder is in a playing state, the ASO manual slider 25 moves in the direction of arrow A.
As a result, the reverse cam lock lever 46 is rotated in the direction of arrow B2 by the urging force of the urging member 47. As a result, the reverse cam gear 26 moves to arrow B2.
The reverse cam gear 2 is rotated in the direction of the cam relay gear 24.
6 gears are engaged, and the reverse cam gear 26 is further rotated counterclockwise to perform a reverse switching operation.

ASO manual slider 25 and cam lock lever 17
A switching control lever 48 is disposed between the ASO manual slider 25 and a claw portion 48a of the lever 48. The switching control lever 48 is, as shown in FIG. 13, the play control lever 4 of the play assist mechanism described above.
5, the claw portion 48a is pressed and rotated in the direction of arrow B2 only in the play state, and the claw portion 48a is removed from the engagement portion 25a.

Further, as shown in FIG. 14, the switching control lever 48 is
When the play assist mechanism is in the play assist operating state, it is not pressed by the play control lever 45, so it is rotated in the direction of arrow B1 by the biasing member 49, and the claw portion 48a engages with the engaging portion 25a. state, and the reverse switching operation is blocked.

Further, as shown in FIGS. 12 and 15, a switching control slider 50 is disposed between the ASO manual slider 25 and the high-speed lock lever 31 so as to be movable in the directions of arrows CI and C2. This switching control slider 50 has an engagement groove 2 formed in the ASO manual slider 25.
5b is formed with an engageable protrusion 50a, and the switching control slider 50 is biased in the direction of arrow 01 by a biasing member 51. When the switching control slider 50 is operated at high speed and the high-speed lock lever 31 is operated, the switching control slider 50 is moved in the direction of arrow C2, and the projection 50a is engaged with the engagement groove 25b. This allows the ASO manual slider 25
movement is blocked, and the reverse switching operation is blocked.

Therefore, in the tape recorder device of this embodiment, when the high-speed lock lever 31 is operated by fast-forwarding or rewinding the tape, the protrusion 50a of the switching control slider 50 moves into the engagement groove of the ASO manual slider 25. 25
b. This prevents the ASO manual slider 25 from moving and prevents the reverse switching operation.

Therefore, two mode switching operations are not performed at the same time, and problems such as mechanical locking are effectively prevented.

[Effects of the Invention] As explained above, in the tape recorder device of the present invention,
Since the operation of the reverse switching means is inhibited when the tape is running at high speed by the tape high-speed drive means, the reverse switching operation is prevented, for example, when the tape is running at high speed during fast forwarding or rewinding. The mode switching operation can be performed satisfactorily and reliably, and the operability can be improved.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a tape recorder device according to an embodiment of the present invention, Fig. 2 is a plan view from the back side of Fig. 1, and Figs. 3 to 5 explain the high-speed mechanism shown in Fig. 2. 6 to 8 are diagrams for explaining the play operation mechanism in Figure 2, Figures 9 to 11 are diagrams for explaining the play assist mechanism in Figure 2, 12 to 15 are diagrams for explaining the reverse switching mechanism and direction blocking mechanism of FIG. 2. FIG. 7...Motor, 13...Center pulley gear, 14
... Winding gear, 15.24 ... Cam relay gear, 16
... Play cam gear, 17... Cam lock lever 2
5. ASO manual slider, 25a... Engaging portion, 26... Reverse cam gear, 28... High speed slider, 37... Engagement groove for blocking switching operation, 38...
Play operation board, 41...Trigger slider, 44...
- Control slider, 44a... protrusion for blocking switching operation,
46... Reverse cam lock lever 48... Switching control lever 48a... Claw portion. Figure 1 Figure 8 Figure 9 Figure 10 Figure 11 Figure 13 Figure 14

Claims (1)

[Scope of Claims] A motor that rotates in forward and reverse directions, a play assist means that is driven by the motor and performs play assist to enter a tape play state when a play operation is performed, and a reverse operation is performed in the tape play state. a reverse switching means that switches the tape running direction when the tape is running; a tape high-speed drive means that is selectively driven by forward and reverse rotation of the motor and puts the tape in a high-speed running state by fast-forwarding and rewinding operations; and this tape high-speed drive means. 1. A tape recorder apparatus comprising: reverse switching operation blocking means for blocking operation of said reverse switching means when the tape is running at high speed.