JPS6224862B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cassette tape recorder device intended for miniaturization, and particularly to one with improved operability.

In recent years, tape recorders have become popular, as they are small and lightweight, making them suitable for portability, and two-way stereo type devices are especially popular, especially for playback using headphones. It is made possible to do so. Such headphone-only portable tape recorders have already been made as small as possible, and are currently about the same size as a cassette case that houses a tape cassette.

By the way, when a tape recorder is downsized to approximately the same size as a cassette case, what is required next is a system for putting the tape recorder into various operating states such as playback, fast-forwarding, rewinding, and stopping. This means improving the shape and arrangement of the controls to further improve operability and ease of use. In other words, the controls of conventional compact tape recorders are small in proportion to the tape recorder body, and are concentrated in one place due to the relationship with the tape recorder mechanism. However, it is difficult to operate and is prone to erroneous operation. Therefore, conventionally, tape recorders themselves have been downsized to approximately the same size as a cassette case, but the shape and arrangement of the controls have been made large enough for the user to easily operate them, and for example, There is a strong desire to develop a compact tape recorder that is not only convenient to carry, but also has excellent operability, with the spacing being wide enough to prevent careless operation.

This invention was made based on the above circumstances, and by providing an operator on the cassette lid for setting the tape recorder to a predetermined operating state or stop state, the operator is made larger in shape and arranged widely and loosely. It is an object of the present invention to provide an extremely good cassette tape recorder device which can improve the operating elements and effectively promote miniaturization.

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the appearance of a tape recorder to which the present invention is applied. That is, the cabinet 11 is approximately box-shaped and has approximately the same size as a cassette case that accommodates a tape cassette. The front surface of the cabinet 11 serves as a cassette lid 12, which is rotated in the directions of arrows A and B in the figure for opening and closing operations. In other words, the cassette lid 12 is always urged in the direction of arrow A by a spring (not shown), and when it is rotated in the direction of arrow B against the urging force, a lock portion (not shown) provided on the cabinet 11 closes. It is locked to the closed state. By operating an eject operator (not shown) provided on the side surface of the cabinet 11, the lock by the lock portion is released, and the cassette lid 12 is rotated in the direction of arrow A by the biasing force of the spring to the open state. It will be done.

Here, as shown in FIG. 2, the cabinet 11 includes a tape cassette storage section 14 that stores the tape cassette 13 indicated by the dashed line in the figure, as well as a tape recorder mechanism section, a circuit section, a head section, which will be described later. Mechanism storage section 15 into which a battery storage section etc. is attached
is provided. Inside the tape cassette storage section 14, a pair of reel shafts 16 and 17 (second
In the figure, only the reel shaft 17 (only the reel shaft 17 is shown) is provided in a protruding manner.

Here, as shown again in FIG. 1, an operating section 18 and a window section 19 are provided approximately at the center of the cassette lid 12 for placing the tape recorder in playback, fast forward, rewind, and stop states. It is being
Of these, the operating section 18 consists of playback, fast forward, rewind, and stop controls 20 to 23, which are attached to the cassette lid 12 so that they can be pressed slightly, although the details will be described later. ing. As shown in FIG. 2, the playback operator 20 is provided on the tape exposed surface of the tape cassette 13, not facing the flat surface of the tape cassette 13 of the cassette lid 12. Further, the fast-forwarding and rewinding operators 21 and 22 are mounted on the reel shafts 16 and 17 on the winding side during fast-forwarding and rewinding.
The rotating shafts 161 and 171 are respectively provided in correspondence with each other. Further, the stop operation element 23 is configured to include the fast forward and rewind operation element 2.
It is provided between 1 and 22.

On the other hand, the window portion 19 is formed of, for example, a transparent acrylic plate or the like, and is
The tape is arranged so as to overlap at least a portion of the well-known tape transparent window formed on the flat surface of the tape. That is, the left end portion of the window portion 19 in FIG. 1 overlaps with a portion of the reel shafts 16 and 17, so that the running state of the tape can be visually observed from the outside through the tape see-through window. There is. In short, it is sufficient that the boundary between the operating section 18 and the window section 19 be located on the reel shafts 16 and 17. Furthermore, in order to visually observe the tape running state from the outside, the operating section 18 may be made of a transparent material.

Here, in the cassette lid 12, the tape cassette storage section 14 is located between the playback operator 20 and the fast forward, rewind and stop operators 21 to 23.
A long hole 24 is formed with a taper that widens outward from the side. This elongated hole 24 is provided so that a channel selection operation can be performed with the cassette lid 12 closed during radio reception using the tuner unit. In other words, this tape recorder not only can play tapes, but also
By using a tuner unit, it is now possible to receive radio broadcasts. This uses a tuner unit in which a tuner circuit for receiving, tuning, detecting, and amplifying radio waves is housed in a casing that has approximately the same shape as the tape cassette. This is done by attaching it to the storage section 14. When a desired broadcasting station is selected by operating the tuning dial provided on the tuner unit, the received radio waves are detected and amplified, and then introduced into the main amplifier circuit in the tape recorder via the connection terminal. The radio broadcast is then played back on the headphone, and the radio broadcast is received here. At this time, with the cassette lid 12 closed, the tuning dial is projected to the outside through the elongated hole 24, and the tuning operation can be performed without opening the cassette lid 12.

Reference numeral 25 in FIG. 1 is a tape-radio changeover switch, and when the above-mentioned tuner unit is installed and the tape-radio changeover switch 25 is set to the radio side, playback, fast forwarding and rewinding controls 20 to 2 are operated.
Even if 2 is operated, the motor for running the tape does not rotate, so that battery power can be saved. Furthermore, the above cabinet 1
1 is provided with a volume adjustment dial, a switch for selecting the type of tape (normal, chrome, metal, etc.), a headphone jack, etc. (not shown) on its side.

Here, the above-mentioned fast forward, rewind and stop operator 2
The attachment of items 1 to 23 to the cassette lid 12 will be explained. That is, as shown in FIG. 3, a long hole 26 is formed approximately at the center of the cassette lid 12. As shown in FIG. A pair of bearing parts 261, 261 (only one bearing part 261 is shown in FIG. 3) is formed at one end of the elongated hole 26. Then, in the elongated hole 26 of the cassette lid 12, there are fast forward, rewind and stop operators 21 to 2 as shown in FIG.
3 is installed. That is, the fast forward, rewind, and stop operators 21 to 23 are each substantially rectangular plates, and bearing portions 211 to 231 are formed at one end thereof, respectively. And each bearing part 211 to 231
Each of the operators 21 to 23 is attached by passing a shaft (not shown) through the shaft and having both ends of the shaft supported by bearing portions 261, 261 of the cassette lid 12.

In addition, the fast forward and rewind operators 21 and 22
When the cassette lid 12 is opened as shown in FIG. 5, the cassette lid 12 is rotated in the direction of the arrow in the figure to prevent it from hanging down. The end is the cassette lid 12
It is configured to be locked in a locking part (not shown) formed at one end of the elongated hole 26. Further, on the surfaces of the fast forward and rewind operators 21 and 22 facing the tape set storage section 14, protrusions 2 are provided at portions facing the tips of the pair of reel shafts 16 and 17.
12 and 222 are formed, respectively. Then, when the cassette lid 12 is closed, the protrusion 212,
222 comes into contact with the tips of the reel shafts 16 and 17, and both the operators 21 and 22 are pushed back slightly outward. Therefore, when the fast forward and rewind operators 21 and 22 are pressed, the reel shaft 1
6 and 17 are pressed in the axial direction, thereby fast forwarding and rewinding the tape.

Furthermore, as shown in FIG. 4 again, projecting pieces 213 and 223 are formed on mutually opposing sides of the fast-forward and rewind operators 21 and 22. Recesses 232 and 232 (only one recess 232 is shown in FIG. 4) are formed on both sides of the stop operation element 23 to engage with the protruding pieces 213 and 223 from above in the figure. Therefore, when the stop operator 23 is pressed, both the fast forward and rewind operators 21 and 22 are pressed, but the operating stroke at this time is to press the fast forward and rewind operators 21 and 22 alone. It is regulated by a stop slider, which will be described later, so that the stroke is shorter than the stroke when operated.

Next, the installation of the playback operator 20 will be explained. First, FIG. 6 shows the configuration of the tape recorder mechanism, in which a playback operator 20 is provided at the lower part of the main chassis 27 in the figure as shown by a two-dot chain line. On the right side of the playback operator 20 in the main chassis 27, there is a
A head chassis 28 is provided. The head chassis 28 is rotatably supported in the directions of arrows C and D in the figure by having a rotation shaft 29 fitted to the right end thereof in the figure supported by the main chassis 27. A reproducing head 30 is attached to the left end of the head chassis 28 in the figure. Further, one end portion of a pinch lever 31 is rotatably supported on the rotation shaft 29. A pinch roller 3 is attached to the other end of the pinch lever 31.
2 is rotatably supported.

Here, as shown in FIG. 7, the head chassis 28 has one end hooked to one side of the head chassis 28, and the other end wrapped around the rotation shaft 29 and protruding from the main chassis 27. A torsion spring 33 is engaged with a protrusion (not shown)
As a result, it is urged to rotate about the rotation shaft 29 in the direction of arrow D in the figure. In addition, the above pinch lever 3
1, a coiled spring 34 is engaged between a protruding piece 281 formed on one side of the head chassis 28 and the other end of the pinch lever 31, so that the pinch lever 31 rotates around the rotation axis 29. It is urged to rotate in the direction of arrow C in the figure. This pinch lever 31
The pinch lever 31 is rotated in the direction of arrow C until the other end of the pinch lever 31 comes into contact with the protruding piece 281 of the head chassis 28.

The head chassis 28 also has a protruding piece 2 at a position corresponding to the rear end of the reproduction head 30.
82 is formed. This protruding piece 282 is in contact with one end of the regeneration drive member 35 whose side surface is formed into a substantially L-shape. Here, the regeneration driving member 3
5 is a main chassis 27 as shown in FIG.
In the lower part of the figure, a shaft 36 formed in the mechanism housing section 15 is rotatably supported by passing through a corner of the regeneration drive member 35. The regeneration drive member 35 can be rotated clockwise in the figure by having one end thereof abut against a side wall (not shown) of the mechanism housing section 15, so that the regeneration drive member 35 can reach the position shown in FIG. is regulated. Therefore, the head chassis 28, which is biased in the direction of arrow D in FIG. 7 by the torsion spring 33, is rotated to the position shown in FIG. 8.

On the other hand, one end of the operating shaft 37 is fitted into the lower part of the playback operator 20 in FIG. The other end of the operating shaft 37 extends downward in the figure and passes through a substantially cylindrical bearing portion 38 formed within the cabinet 11, and the operating shaft 37 slides in the vertical direction in the figure. Possibly supported. Further, the bottom surface of a first drive section 39 having a substantially conical shape is attached to the lower end of the operating shaft 37 inserted through the bearing section 38 in the drawing. The neck of the first drive section 39 is connected to the neck of a second drive section 41 having a substantially conical shape via a shaft 40 having a smaller diameter than the operating shaft 37 . The bottom surface of the second drive section 41 faces the other end of the regeneration drive member 35.

Here, the operation shaft 37, the first drive section 39,
The shaft 40 and the second drive section 41 are inserted through a through hole 271 formed in the main chassis 27 and are slidable in the vertical direction in FIG. 8. In addition, the lower end portion of the playback operator 20 in the figure and the bearing portion 38
There is a step 381 formed at the top in the figure.
A coiled spring 42 is interposed, and the regeneration operator 20 is biased upward in the figure, but the movement of the regeneration operator 20 upward in the figure is caused by the fact that the bottom surface of the first drive unit 39 This is done until it comes into contact with the lower end portion of the bearing portion 38 in the figure. Here, the operating shaft 37, the first drive section 39, the shaft 40, and the second drive section 41 may be integrally formed, for example, by molding a synthetic resin material. In this case, the operation shaft 37 may be inserted through the bearing portion 38 from below in the figure and connected to the reproduction operation element 20.

Now, assume that the playback operator 20 is pushed downward in the figure against the biasing force of the spring 42 from the state shown in FIG. Then, as shown in FIG.
5, and the regeneration drive member 35 moves to the ninth position.
It is rotated counterclockwise in the figure. Therefore, one end of the reproduction drive member 35 presses the protruding piece 282 of the head chassis 28, and the head chassis 28 is rotated in the direction of arrow C in FIG. 7 against the biasing force of the torsion spring 33. At this time, the reproducing head 30 comes into contact with a tape (not shown) of the tape cassette, and the pinch roller 32 is pressed against a capstan, which will be described later, through the tape. Here, the pinch roller 32 is positioned such that when it is pressed against the capstan, the pinch lever 31 is pushed back in the direction of arrow D in FIG. 7 about the rotation shaft 29 against the biasing force of the spring 34. Since the relationship is set, the biasing force of the spring 34 eventually causes the capstan to be pressed against the capstan. In addition, playback operator 2
0 is locked at the pressing operation position shown in FIG. 9, and the locking mechanism will be described later.

Here, the configuration of the tape recorder mechanism section will be explained. That is, as shown in FIG. 6 again, a tape running motor 43 is attached to the upper right portion of the main chassis 27 in the figure. A pulley 432 with a small diameter is fitted onto a rotating shaft 431 of this motor 43. Further, a flywheel 44 is rotatably supported at the lower right portion of the main chassis 27 in the figure, and the flywheel 44 and the pulley 432 are connected via a belt 45 so as to transmit rotational force. and,
The rotation axis of the flywheel 44 is the capstan 46. Furthermore, as shown in FIG. 10, the flywheel 44 is coaxially provided with a gear 47 having a small diameter.

On the other hand, the pair of reel shafts 16 and 17 are each rotatably supported approximately at the center of the main chassis 27. Of these, the reel shaft 16, which is on the winding side during fast forwarding, is supported by the main chassis 27 as shown in FIG. That is, a through hole 272 is formed in the main chassis 27 at a portion where the reel shaft 16 is attached. A bearing member 48 having a substantially cylindrical shape and having a flange 481 with a larger diameter than the through hole 272 is inserted into the through hole 272 , and the bearing member 48 is inserted into the through hole 272 . and are fixed by screws 49, 49. A rotary shaft 161 is rotatably inserted into this bearing member 48 .

Here, the portion of the rotating shaft 161 that protrudes upward in the figure from the bearing member 48 is inserted into the reel cap after passing through the through hole 501 formed at the bottom of the lock member 50, which is formed in the shape of a substantially bottomed cylinder. 51 is fitted. A small diameter protrusion 512 is formed on the head (tip) of the reel cap 51, which is smaller in diameter than a portion 511 of the reel cap 51 that is fitted with a reel hub of a tape cassette (not shown). This protrusion 512
It is opposed to the protrusion 212 of No. 1. The reel cap 51 is rotated integrally with the rotating shaft 161, and the lock member 50 is rotated integrally with the rotating shaft 161.
It is done independently of 1. A coil-shaped spring 52 is interposed between the upper end of the bearing member 48 in the figure and the bottom of the lock member 50, and the rotating shaft 161 is rotated through the lock member 50 and the reel cap 51. It is biased upward. Furthermore, a flange-shaped locking portion 503 having a tapered portion 502 extending from the bottom to the top in the drawing is formed at the lower end of the locking member 50 in the drawing. This locking portion 503 is formed to have a smaller diameter than the through hole 272 of the main chassis 27.

Further, the portion of the rotating shaft 161 that protrudes downward in the drawing from the bearing member 48 has a slightly smaller diameter via a stepped portion 162, and the smaller diameter portion has a smaller diameter gear 53 and a larger diameter portion. Gears 54 are fitted respectively. These gears 53 and 54 rotate integrally with the rotating shaft 161. Among them, the gear 53 is fixed to the rotating shaft 161, but the gear 54 is provided so as to be slidable in the axial direction of the rotating shaft 161. There is. Further, the gear 54 is connected to the rotating shaft 1
A coiled spring 56 is interposed between the washer 55 attached to the lower end of the gear 54 in the figure, and the gear 54 is biased upward in the figure. For movement, the gear 54 is the gear 5
3.

Here, in the main chassis 27, a shaft 57 is installed approximately in the center between the reel shaft 16 and the flywheel 44. This shaft 57 has
A large-diameter gear 58 and a small-diameter gear 59 are rotatably supported from above in FIG. 10, respectively. A substantially ring-shaped friction member 60 is interposed between the gears 58 and 59. Further, a stop 61 having a substantially cylindrical shape and having a flange 611 at the lower end in the figure is fitted into the lower part of the shaft 57 in the figure, and a coil provided on the flange 611 of the stop 61 is fitted. The gear 59 presses against the gear 58 via the friction member 60 by a spring 62 having a shape of 1. For this reason, the gears 58 and 59 are in an interlocking relationship. The gear 58 is the flywheel 4.
The gear 59 is meshed with the gear 54 of the reel shaft 16. At this time, the gear 58 is in a position to mesh with the gear 53 of the reel shaft 16, but as is clear from FIG. 10, the gears 58 and 53 are not meshed because they are vertically shifted in the figure.

On the other hand, among the pair of reel shafts 16 and 17,
The reel shaft 17 which becomes the winding side during rewinding is the first
As shown in FIG. 1, it is supported by the main chassis 27. That is, the main chassis 27 has a through hole 273 in the part where the reel shaft 17 is attached.
is formed. A bearing member 62 having a substantially cylindrical shape and having a mounting portion 621 extending to the peripheral edge of the through hole 273 at the lower part of the figure is inserted into the through hole 273, and the peripheral edge of the through hole 273 and the mounting portion 621 are not shown. It is fixed with screws etc. and,
A rotary shaft 171 is rotatably inserted into this bearing member 62.

Here, the portion of the rotating shaft 171 that protrudes upward in the figure from the bearing member 62 is inserted into the through hole 631 formed at the bottom of the lock member 63, which is formed into a substantially bottomed cylindrical shape, and then inserted into the reel cap. 64 is fitted. A protrusion 642 smaller in diameter than a portion 641 of the reel cap 64 that is fitted with the reel hub of the tape cassette is formed on the head (tip) of the reel cap 64. It faces the protrusion 222 of the rewind operator 22 . Although the reel cap 64 is rotated integrally with the rotating shaft 171, the locking member 63 is independent of the rotating shaft 171. A coil-shaped spring 65 is interposed between the upper end of the bearing member 62 in the figure and the bottom of the locking member 63.
71 is biased upward in the figure. Furthermore, a flange-shaped locking portion 633 having a tapered portion 632 extending from the bottom to the top in the drawing is formed at the lower end of the locking member 63 in the drawing. This locking portion 633 is formed to have a smaller diameter than the through hole 273 of the main chassis 27.

In addition, a small-diameter gear 66 is provided at a portion of the rotating shaft 171 that protrudes downward in the figure from the bearing member 62.
is fitted. This gear 66 is connected to the rotating shaft 171
It rotates integrally with the

Here, in the main chassis 27, a shaft 67 is located approximately at the center of the reel shaft 17 and the shaft 57.
has been planted. A substantially cylindrical mounting member 68 is inserted into the shaft 67 so as to be rotatable and slidable in the axial direction of the shaft 67, that is, in the vertical direction in the figure. A rewinding lever 69 and a gear 70 are fitted onto the mounting member 68. In addition, the lower end of the mounting member 68 in the figure and the shaft 67
Between the washer 71 attached to the lower part of the figure,
The attachment member 68 is biased upward in the figure by the coiled spring 72 interposed therebetween.
In this state, the gear 70 is connected to the gear 6 of the reel shaft 17.
6 is engaged. At this time, the gear 70 is in a position to mesh with the gear 58, but as is clear from FIG. 11, the gears 70 and 58 are not meshed because they are vertically shifted in the figure.

Further, the rewinding lever 69 is a plate-shaped body,
At one end thereof, there is a meshing portion of the gears 70 and 66, and
A connecting portion 691 is formed between the lock portion 63 of the reel shaft 17 and the lower end in the drawing, and is inserted through the through hole 273 of the main chassis 27. Further, the other end of the rewinding lever 69 extends to the reel shaft 16 side, and the tip in the extending direction engages with the flat surface of the gear 54 of the reel shaft 16 from above in the figure. An engaging portion 692 is formed.

Here, as shown again in FIG. 6, a rotation shaft 73 is installed approximately in the center of the main chassis 27. This rotation shaft 73 has a lock lever 74.
and a switch lever 75 are each rotatably supported. That is, the lock lever 74
As shown in Figures 8, 10 and 11,
A tapered portion 391 of the first driving portion 39 of the playback operator 20, a tapered portion 502 of the locking member 50 of the reel shaft 16, and a tapered portion 632 of the locking member 63 of the reel shaft 17, respectively. First to third engaging portions 741 to 743 are formed to extend in three directions centering on the rotation shaft 73. Further, the switch lever 75 has substantially the same shape as the lock lever 74, is provided overlapping the lock lever 74, and is engaged with the playback operator 20 and the tapered portions 391, 502, 632 of the reel shafts 16, 17, respectively. First to third engaging parts 751 to 753 that can be fitted together
is formed so as to extend in three directions with the rotation axis 73 as the center. Further, at the tip of the third engaging portion 753 of the switch lever 75, there is a fourth engaging portion 75 that engages with the leaf switch 76 for supplying power to the motor 43.
4 is formed. When the switch lever 76 is rotated counterclockwise in FIG.
When pressed by the fourth engaging portion 754, the leaf switch 76 is turned on, and the motor 43 is driven to rotate. Further, a protruding engagement piece 7 is provided on one side of the third engagement portion 753 of the switch lever 75.
55 is formed. A coil-shaped spring 77 is engaged with this protruding engagement piece 755 and a predetermined position on the main chassis 27.
The switch lever 75 is biased to rotate clockwise in FIG. Therefore, the first to third engaging portions 751 to 753 of the switch lever 75 are pressed by the respective tapered portions 391, 502, and 632.

On the other hand, the third engaging portion 7 of the lock lever 74
A protruding engagement piece 744 is also formed on one side of 43. Further, shafts 78 and 79 are installed in the main chassis 27 in the vicinity of the reel shafts 16 and 17, respectively. These shafts 78 and 79 are connected to elongated holes 80 formed at both ends of a stop slider 80 that is provided horizontally in FIG. 6 between both reel shafts 16 and 17.
1,802. For this reason, the stop slider 80 is made slidable in the left and right directions in FIG. A protruding engagement piece 803 is formed on one side of the stop slider 80, and this protruding engagement piece 803 and the lock lever 7
A coil-shaped spring 81 is engaged between the protruding engagement piece 744 of No. 4. Therefore, the lock lever 74 is urged to rotate clockwise in FIG. 6, and the first to third engaging portions 741 to 743
is pressed by each of the tapered portions 391, 502, and 632. Further, the stop slider 80 is biased to the left in FIG. This is done until the contact point is reached. At this position, stop slider 8
The protruding piece 804 formed at one end of the reel shaft 17 is located near the tapered portion 632 of the locking member 63 of the reel shaft 17. Further, a protruding piece 805 is formed at the other end of the stop slider 80, and this protruding piece 805 faces the tapered portion 502 of the locking member 50 of the reel shaft 16.

In the above-described configuration, it is assumed that the playback operator 20 is operated to play back a tape. Then, as previously explained in FIGS. 8 and 9, the head chassis 28 is moved, the reproducing head 30 is brought into contact with the tape, and the pinch roller 32 is pressed against the capstan 46 through the tape. At this time, when the playback operation element 20 is pressed downward in FIG.
41,751 is pressed. Therefore, the lock lever 74 and the switch lever 75 are rotated counterclockwise in FIG. 6 against the urging force of the springs 81 and 77. When the playback operator 20 is pressed to the position shown in FIG. 9, the lock lever 7
The four first engaging portions 741 come to face the bottom surface portion of the first driving portion 39 . Therefore, the lock lever 74 is rotated clockwise in FIG. 6 by the biasing force of the spring 81, and the first engaging portion 741
is engaged with the bottom surface of the first drive section 39, and the playback operation element 20 is locked in the operation position. At this time, as shown in FIG. 9, the switch lever 75 has its first engaging portion 751 connected to the first driving portion 39.
It is kept pressed by. For this reason,
The fourth engaging portion 754 of the switch lever 75 turns on the leaf switch 76, and the motor 43 is rotated counterclockwise in FIG.

Then, the flywheel 44 is rotated in the same direction, and the rotational force is applied to the gears 47, 58 and the friction member 6.
0 is transmitted to the reel cap 51 via the gears 59, 54 and the rotating shaft 161, and the reel cap 5
1 is rotated counterclockwise in FIG. 6, and the tape is played back.

Next, it is assumed that the tape fast-forward is turned off and the fast-forward operator 21 is pressed as shown in FIG. Then, the protrusion 2 of the fast-forward operator 21
12 presses the protrusion 512 of the reel cap 51, the reel cap 51 is pressed downward in the figure, and the lock member 50 is accordingly slid downward in the figure against the biasing force of the spring 52. This movement of the locking member 50 downward in the figure is as follows:
This is done until the lower end in the figure comes into contact with the flange 481 of the bearing member 48. In this state, the tapered portion 502 of the locking member 50 allows
The second engaging portion 752 of the switch lever 75 is pressed, and the switch lever 75 is rotated counterclockwise in FIG. Section 503
is engaged with. Therefore, the leaf switch 7
6 is turned on, and the reel shaft 16 is locked at the pressed position. At this time, as the reel shaft 16 is pressed, the rotation shaft 161 also moves downward in the figure, and the gears 53 and 54 fitted on the rotation shaft 161 are also moved in the same direction.
Therefore, the gear 54 is disengaged from the gear 59, and the gear 53 comes to mesh with the gear 58. Therefore, the rotational force of the flywheel 44 in the counterclockwise direction in FIG.
1 to the reel cap 51, the reel cap 51 is rotated at high speed counterclockwise in FIG. 6, and the tape is fast-forwarded.

It is also assumed that the rewind operator 22 is pressed to rewind the tape. Then, the protrusion 222 of the rewind operator 22 presses the protrusion 642 of the reel cap 64, so that the first
As shown in FIG. 3, the reel cap 64 of the reel shaft 17 is pressed downward in the figure, and the lock member 63 is accordingly slid downward in the figure against the biasing force of the spring 65. The locking member 63 is moved downward in the drawing until its lower end in the drawing comes into contact with the mounting portion 621 of the bearing member 62. In this state, the taper portion 632 of the lock member 63 causes the switch lever 75 to be locked in the third position.
The engaging portion 753 of the switch lever 7 is pressed.
5 is rotated counterclockwise in FIG.
The third engaging portion 743 of the lock lever 74 is engaged with the collar portion 633 of the lock member 63. For this reason,
When the leaf switch 76 is turned on,
The reel shaft 17 is locked at the pressed position. At this time, the lower end of the locking member 63 in the figure presses the connecting portion 691 of the rewind lever 69 downward in the figure, so that the entire rewind lever 69 is slid downward in the figure. For this reason, gears 66 and 70
The gear 70 is slid downward in the figure while being meshed with the gear 58, and at this time, the gear 70 is meshed with the gear 58. Also,
The engaging portion 692 of the rewinding lever 69 causes the gear 54 to slide downward in the figure against the urging force of the spring 56, so that the gear 54 is disengaged from the gear 59. Therefore, the rotational force of the flywheel 44 in the counterclockwise direction in FIG.
70, 66 and the rotating shaft 171 to the reel cap 64, and the reel cap 64
The tape is rotated at high speed clockwise in the figure, and tape rewinding is performed here.

Next, a case will be described in which the stop operator 23 is operated in the playback, fast-forwarding, and rewinding states.
That is, in the playback, fast-forwarding, and rewinding states, the first driving section 39 and the locking member 5
0 and 63 are locked by corresponding first to third engaging portions 741 to 743 of the lock lever 74. To operate the stop operator 23 is to operate the fast forward and rewind operators 21 and 22 together, as described above. Here, the above-mentioned fast forward and rewind operator 2
When 1 and 22 are operated together, both reel shafts 16,
17 is slid downward in FIG. 11, for example.
Therefore, no matter which of the three operating states the tape recorder is in, the tapered portions 502, 632 of the locking members 50, 63 of the reel shafts 16, 17 are connected to one or both of them. As a result, the second or third engaging portions 742, 743 of the lock lever 74 are pressed, and the lock lever 74 is pressed.
is rotated in the counterclockwise direction in FIG. 6, so that the lock is eventually released and it comes to a stopped state.

Here, when both reel shafts 16 and 17 are pressed as described above, the stop slider 80
The protruding piece 804 is the locking member 6 of the reel shaft 17.
Since it is pressed by the taper portion 632 of No. 3, it is slid to the right in FIG. At this time, since the reel shaft 16 is also pressed, the protrusion 805 of the stop slider 80 comes into contact with the tapered portion 502 (large diameter portion) of the lock member 50. That is, the tapered portions 502, 6 of both reel shafts 16, 17
The stop slider 80 is sandwiched between the large-diameter portions of 32. For this reason, both reel shafts 1
6 and 17 are regulated so that they are not operated to a deeper position than when they are operated alone. The position where both the reel shafts 16 and 17 are regulated means that both the lock members 50 and 63 are locked at the second and third engaging portions 74 of the lock lever 74.
This is a shallow enough position to avoid being locked together by 2,743. Therefore, even if the stop operator 23 is operated, both reel shafts 16 and 17 are not locked at the operating position. In other words, the operation stroke of the stop operator 23 is shorter than the stroke obtained by operating the fast forward and rewind operators 21 and 22 alone.

The tape recorder described in this embodiment is equipped with an automatic stop mechanism that automatically stops the tape when it reaches the end during playback. That is, referring to FIGS. 6 and 10, one end of a friction lever 82 is provided at the lower part of the gear 59 in FIG. 10 via a well-known friction mechanism. This friction lever 82 is biased in the rotational direction when the gear 59 is rotated. And the friction lever 82
A long hole 821 is formed at the other end, and a pin 831 protruding from one end of the detection lever 83 is loosely fitted into the long hole 821. The detection lever 83 is rotatably supported by a shaft 84 protruding from the main chassis 27 at a substantially central portion thereof. Further, one side of the other end of the detection lever 83 is brought into contact with a side surface of a cam portion 85 provided on the gear 58 . Furthermore, two pins 832 and 833 are provided at the other end of the detection lever 83.
is installed protrudingly. Of these, the pin 832 faces the second engaging portion 742 of the lock lever 74, and the other pin 833 is capable of engaging with a curved operating wall 581 formed on the flat surface of the gear 58. There is.

In the tape replaying state described above, the flywheel 44 and gear 47 are rotated counterclockwise in FIG.
It is rotated clockwise in the figure. Therefore, the friction lever 82 is biased clockwise in FIG. 6 by the rotational force of the gear 59, and the detection lever 83 is also biased clockwise in the diagram about the shaft 84. At this time, since the other end of the detection lever 83 is in sliding contact with the cam portion 85, the detection lever 83 eventually performs a swinging movement about the shaft 84, and a stable regeneration state is continued.
When the tape reaches the end in such a reproduction state, the rotation of the reel shaft 16 is stopped, and thereby the rotation of the gears 54 and 59 is stopped. At this time, there is slippage between gears 58 and 59. By stopping the rotation of the gear 59, no biasing force is applied to the friction lever 82 and the detection lever 83. On the other hand, since the gear 58 continues to rotate, the cam portion 85 is also rotating, and the detection lever 83 is rotated counterclockwise in FIG. 6 about the shaft 84 by the length of the maximum diameter of the cam portion 85. , will be stopped at that position. Then, due to the rotation of the gear 58, the outer portion of the operating wall 581 comes into contact with the pin 833 of the detection lever 83, and moves the pin 833 and thus the detection lever 83 further away from the above-mentioned stop position along the curved shape of the operating wall 581. 6 Rotate counterclockwise in Figure 6. At this time, the pin 832 of the detection lever 83
comes into contact with the second engaging portion 742 of the lock lever 74, causing the lock lever 74 to rotate counterclockwise in FIG. Therefore, the lock at the operating position of the playback operator 20 is released, and an automatic stop is performed at this point.

Here, in the above embodiment, both reel shafts 16, 17
Although the tape cassette is used for operation, the operator may be provided using a through hole (capstan insertion hole, guide pin insertion hole) formed in the tape cassette in its thickness direction. That is, the tape cassette is formed with pairs of three types of through holes in the thickness direction: a capstan insertion hole, a guide pin insertion hole, and a reel shaft insertion hole (reel hub). If the operating members (reel shafts 16 and 17 in the above embodiment) are inserted through these holes and operated, the operating members can be attached without taking up space, which is suitable for downsizing. It is something.

FIG. 14 shows the pose operation member 8 using the capstan insertion hole 131 on one side of the tape cassette 13.
6 is attached. That is,
Tape cassette 13 is placed in tape cassette storage section 14.
is attached, the capstan 46 is inserted into one capstan insertion hole (not shown), and the pose operation member 8 is inserted into the other capstan insertion hole 131.
6 is inserted. This pose operation member 86 is supported to be slidable in the vertical direction in the drawing relative to the main chassis 27, and is connected to a well-known push-push mechanism at the bottom of the main chassis 27 in the drawing, and is also engaged with the leaf switch 87. ing.

Further, the cassette lid 12 is provided with a pause operator 88 similar to the fast forward, rewind, and stop operators 21 to 23 and the like. When the pose operator 88 is pressed once, the pose operation member 86 is pushed down in the figure and locked in that position. At this time, the leaf switch 87 is turned off, power supply to the motor 43 is stopped, and tape running is stopped. In this state, when the pause operation member 88 is pressed again, the pause operation member is unlocked, the leaf switch 87 returns to its original on state, and tape running is resumed.

Therefore, according to the configuration of the above-mentioned embodiment, firstly, since various types of operators are provided on the cassette lid 12 itself, the shapes of the operators can be large and widely spaced. The operability can be extremely improved, and the tape recorder will not be made smaller. Here, each of the above-mentioned operators may be provided by molding integrally with the cassette lid 12. In this case, for example, it is effective to make the part of the cassette lid 12 that is the operator thin and elastic so that it can be pressed slightly. Also, when operating the fast forward operator 21 and rewind operator 22, the protrusions 212, 222
are the protrusions 512, 64 of the reel caps 51, 64.
2, the operating force can be concentrated and the reel shafts 16, 17 can be stably operated in the axial direction.
Note that the protrusions 212 and 222 and the protrusion 512,
642 may be formed only on either the fast forward and rewind operators 21, 22 side or the reel shaft 16, 17 side. In short, the fast forward and rewind operators 21, 22 and the reel shaft 16, It suffices if it is provided between 17 and 17.

As mentioned above, the provision of the operating section 18 on the cassette lid 12 is a feature of the present invention.

In addition, since the cassette lid 12 is provided so that the boundary between the operating section 18 and the transparent section 19 straddles the reel shafts 16 and 17, the tape running state and remaining amount of tape can be easily checked from the outside. It is something that can be done.

Furthermore, the operating member is inserted into various through holes (capstan insertion hole, guide pin insertion hole, and reel shaft insertion hole) formed in the thickness direction of the tape cassette 13, and is operated from the flat side of the tape cassette 13. Therefore, there is no need to provide a special location within the cabinet 11 for installing the operating member, which is advantageous in terms of space and can particularly contribute to downsizing of the tape recorder.

In addition, among the various through holes formed in the thickness direction of the tape cassette 13, the reel shafts 16 and 17, which are originally inserted into the reel shaft insertion holes, are used as operating members to operate in the axial direction. The composition is organic and free of waste, and the illustrations can be made with certainty. Furthermore, since the reel shafts 16 and 17, which are on the winding side during fast forwarding and rewinding, are used for fast forwarding and rewinding operations, erroneous operations can be prevented and operability can be further improved.

Furthermore, the reel shafts 16 and 17 are provided coaxially and separately with the reel caps 51 and 64 for rotation and the lock members 50 and 63 for turning on and off the lock and leaf switch 76. , unnecessary lateral pressure such as spring biasing force from the tape recorder mechanism side is applied to the reel caps 51, 64.
It does not affect the stability of the tape and does not prevent the tape from running stably.

Here, the means for locking the reel shafts 16, 17 at the operating positions and turning on the leaf switch 76 can also be carried out as shown in FIG. 15. That is, in this case, the reel shaft 16
To explain, the rotation shaft 161 of the reel shaft 16 is supported by a bearing member 89 attached to the main chassis 27 so as to be slidable and rotatable in the vertical direction in the figure. One end of the locking member 90 is engaged with the lower part of the rotating shaft 161 in the drawing. The other end of the lock member 90 is rotatably supported and biased counterclockwise in the figure by a torsion spring 91. Further, a tapered portion 901 is formed at one end of the locking member 90 as shown in the figure.

When the reel shaft 16 is pressed downward in the figure, the lock member 90 is rotated clockwise in the figure, and at this time, the lock lever 74
The switch lever 75 is pressed by the tapered portion 901 and rotated. Further, when the reel is locked, the lock lever 74 is engaged with the upper end of the lock member 90 in the figure, and the reel shaft 16 is locked at the operating position.

It should be noted that the present invention is not limited to the above-mentioned embodiments, and can be implemented with various modifications without departing from the gist thereof.

That is, although the above embodiment has been described with respect to a playback-only tape recorder, the present invention is of course applicable not only to playback-only tape recorders but also to tape recorders that perform recording and playback. In other words, the tape recorder referred to here may be one that can perform both recording and reproduction, or one that can only be used for reproduction.

Therefore, as detailed above, according to the present invention, since an operator is provided on the cassette lid to set the tape recorder in a predetermined operating state or in a stopped state,
The shape of the controls can be made larger and more spacious, and operability can be improved.
It is possible to provide an extremely good cassette tape recorder device that is effectively miniaturized.

[Brief explanation of the drawing]

1 and 2 are an external view and a sectional side view showing an embodiment of a cassette tape recorder device according to the present invention, respectively, and FIGS. 3 to 5 each illustrate a state in which an operator is attached to a cassette lid. FIG. 6 is a plan view showing the tape recorder mechanism, and FIGS. 7 to 9 are perspective views and exploded perspective views for explaining the playback operator and the head portion, respectively. 10 and 11 are side sectional views showing the tape recorder mechanism, FIGS. 12 and 13 are operation explanatory views of the tape recorder mechanism, and FIG. 14 is a pause operation mechanism. FIG. 15 is a side sectional view showing a modification of the reel shaft portion. 11...cabinet, 12...cassette lid,
13... Tape cassette, 14... Tape cassette storage section, 15... Mechanism storage section, 16, 17...
Reel shaft, 18...Operation section, 19...Window section, 20
...Playback operator, 21...Fast forward operator, 22...
... Rewind operator, 23... Stop operator, 24...
Long hole, 25...Tape-radio selector switch, 2
6...Long hole, 27...Main chassis, 28...
Head chassis, 29...Rotation shaft, 30...Reproduction head, 31...Pinch lever, 32...Pinch roller, 33...Torsion spring, 34...
... Spring, 35 ... Regeneration drive member, 36 ...
Shaft, 37... Operating shaft, 38... Bearing portion, 39...
...first drive section, 40...shaft, 41...second drive section, 42...spring, 43...motor, 4
4... Flywheel, 45... Belt, 46...
... Capstan, 47 ... Gear, 48 ... Bearing member, 49 ... Screw, 50 ... Lock member, 51
... Reel cap, 52 ... Spring, 5
3, 54...gear, 55...washia, 56...
Spring, 57... shaft, 58, 59... gear,
60...Friction member, 61...Stopper, 62...Bearing member, 63...Lock member, 64...Reel cap, 65...Spring, 66...Gear,
67... Shaft, 68... Mounting member, 69... Rewinding lever, 70... Gear, 71... Washer, 72
... Spring, 73 ... Rotating shaft, 74 ... Lock lever, 76 ... Switch lever, 76 ... Leaf switch, 77 ... Spring, 78, 79
...shaft, 80 ... stop slider, 81 ... spring, 82 ... friction lever, 83 ... detection lever, 84 ... shaft, 85 ... cam part, 86 ... pause operation member, 87 ... leaf Switch, 88...
...Pose operator, 89...Bearing member, 90...
Lock member, 91...Torsion spring.

Claims (1)

[Scope of Claims] 1. A cassette lid that is provided in a tape cassette storage section so as to be openable and closable is brought into contact with the tip of a reel shaft in a closed state, and the reel shaft is moved in the axial direction of the cassette lid. 1. A cassette tape recorder device, comprising: an operating section that can be operated by pressing, and a tape recorder mechanism section is brought into a predetermined operating state or stopped state by pressing the operating section. 2. A protrusion having a smaller diameter than a portion of the reel shaft that is fitted with the reel hub of the tape cassette is provided between the contact portion between the operating portion and the tip end of the reel shaft. A cassette tape recorder device according to claim 1.