JPS5963043A - Driving mechanism of tape recorder - Google Patents

Abstract

PURPOSE:To control exactly a driving system and to make it small in size by a simple constitution by providing a changeover driving mechanism for controlling from the first position where a rotating body is set to an engaged state to the first reel shaft by interlocking with a pressure operation of the second reel shaft, to the second position where said rotating body is set to a non-engaged state, the first transfer mechanism and the second transfer mechanism. CONSTITUTION:A rewinding member 84 is provided so as to be freely rotatable in the directions as indicated with arrows I, J against the main chassis, and one end of the rewinding member 84 is engaged to a rewinding driving member 85 whose middle part is supported so as to be freely rotatable in the directions as indicated with arrows K, L against the main chassis 36. A driving part 86 having an inclinced part 861 is formed on the other end of the rewinding driving member 85, and the inclined part 861 is engaged to an inclined part 741 of the first detaining part 74 of a lock member 71 of a reel shaft 16 on the rewinding side. Therefore, when a rewinding operating piece is press-operated, the rewinding driving member 85 is turned in the direction as indicated with an arrow K since the driving part 86 is pressed by the first detaining part 74 of the lock member 71.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement of a drive unit 114 suitable for a tape recorder that is intended to be miniaturized.

[Technical background of the invention and its problems]

In recent years, cassette tape recorders are small and lightweight, making them suitable for carrying, and two-way stereo type devices have become popular, especially for playback using headphones. It is designed so that you can enjoy playing the tape while doing so. and,
In the case of such a portable cassette cheap recorder device exclusively for headphones, the cassette case that accommodates all the tape cassettes and the size of about PI Gin are currently available.
Present-C is coming.

By the way, what is particularly requested in S@, which is a miniaturized cassette recorder device, is the operation of each operation state for each 81 operation state and stop state of the cassette recorder device, such as full playback, rewind 7, etc. Improved shape and layout for better operability? The objective is to improve the user-friendliness and make it more convenient to carry.

However, the compact tape recorder devices that have been realized to date do not necessarily satisfy the above-mentioned requirements and have many various disadvantages.

For example, when carrying a cell phone, it is too thick to be carried by storing it in the chest pocket of a dress shirt, etc. For this reason, for example, it can be carried by attaching it to the waist using a special holster. was.

However, there is a need for a device that has a simple structure with no waste, has improved operability, and is further miniaturized so that it can be stored in the chest pocket of a dress shirt, for example.

[Purpose of the invention]

This development 8A was made in view of the above circumstances, and it is an object of the present invention to provide an extremely good tape recorder drive mechanism that has a simple configuration, can reliably control the drive system, and can effectively promote downsizing. With the goal.

[Summary of the invention]

That is, the present invention includes a first reel shaft, a second reel shaft provided so as to be freely pressable in the axial direction, and a rotary body provided coaxially with respect to the first reel shaft so as to be freely movable in the axial direction. 1 in conjunction with the suppression operation of the second reel axis.
．． 1. Bringing the rotating body into engagement with the first reel shaft@
a switching drive mechanism that controls from a first position to a second position where the rotary body is in an uncoupled state; a first fiM mechanism that transmits the rotational force at a constant speed to the first reel shaft through the rotary body, a transmission mechanism for transmitting the rotational force from the drive source at a second position of the rotary body, and the entire rotary body. A second transmission mechanism for transmitting data to the second reel shaft at a speed of h is also included.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 shows the external appearance of a cassette tail recorder device to which the present invention is applied. In other words, 11 is a cabinet which is approximately box-shaped and is smaller than the outer circumference of the cassette to be loaded, and one plane part of this cabinet 11 is directly used as a cassette lid 12. Here, the cassette lid 12 is formed into an oval shape on the side so that the outer peripheral part of the tape cassette to be loaded can protrude, and the cassette lid 12 is manually rotated in the directions of arrows A and B in FIG. 1 by the user. It is supported so that it can be opened and closed. The cassette lid 12 is lightly locked in the open position to prevent it from wobbling, and is securely locked in the closed position by a locking mechanism, which will be described later. Further, the cassette lid 12 has a cassette holder 13, the details of which will be described later, and this cassette holder 13 moves slowly in the opening/closing operation of the cassette lid 12, and is capable of holding a loaded tape cassette. It is.

The cabinet 11 includes a storage section 14 for storing a predetermined portion of the Q7-cassette when the cassette lid 12 is closed, and a tape recorder mechanism section ((8) shown in FIG. ) are provided. Further, in the cabinet 11, a playback head, a pinch roller, etc., which will be described later, are arranged in a portion facing the tape h output side of the first cassette. It is designed to be linked to the opening/closing operation of the cassette lid 12.

A pair of reel shafts 5, 16, indicated by broken lines in FIG. 1, are supported in the storage section 14 in the cabinet 11. Further, the cassette lid 12 is provided with a reel shaft 1 which serves as the winding side when playing and rewinding the tape.
A lock operator 17, which will be described later, is located at a position opposite to 5 and 16.
and a rewind operator 18 are supported. Of these, the lock operator 17 is installed so that it can be operated in the direction of arrow C, and the lock operator 17 is operated in conjunction with this operation. The locking mechanism described later is operated to open the cassette lid 12.

On the other hand, as will be described later, the Joki rewind operator 18 is connected to the reel shaft 1.
It is installed so that it can be operated so as to suppress it in six directions.

In addition, on the cassette lid 12, a playback operator 19 and a stopper operator 20 are provided near the peripheral edge of one side of the loaded small tape cassette that does not face the flat surface of the cassette. Possibly installed.

Furthermore, the cassette holder 13 of the cassette lid 12
A front door 21 for reinforcing the cassette lid 12 is provided at one end facing the cassette lid 12. This front door 21 is approximately plate-shaped and has the reel shaft 15.1 in the middle part.
A notch 22 is formed corresponding to the cassette lid 12, and the negative end thereof is rotatably supported in the directions of arrows E and F with respect to the cassette lid 12. and the front door 21;
A torsion spring 2 is provided between the cassette lid 12 and the cassette lid 12.
3 is interposed between the front door 21 and the cassette lid 1 due to the biasing force of this torsion spring 23.
2. It is located approximately perpendicular to 2. Therefore, when the upper cassette lid 12 is closed with respect to the cabinet 11, the front door 21 is arranged approximately perpendicularly between one end of the cabinet 11 and one end of the cassette lid 12. This is inserted to reinforce the cassette lid 12.

That is, a tape cassette in the above cassette tape recorder device? When loading, first, as shown in FIG. 2, the cassette lid 12 is rotated from the fully closed position to the open state, and the tape cassette 24 is inserted with the tape calculation section side facing the cassette holder 13. At this time, the front door 21 supported by the cassette lid 12 is rotated in the direction of arrow E by the tape cassette 24 against the spring force of the torsion spring 23, and is rotated to the upper surface of the tape cassette 24. They are placed on the back surface of the cassette lid 12 in a stacked state.

Here, the reel hub parts 25 and 26 of the cheese cassette 24 are positioned in the notch 22 of the front door 21, and when the cassette lid 12 is closed, the reel shafts 15 and 16 respectively protrude from the notch 522. ing. When the cassette 12 is lowered as shown in FIG. It is loaded with the cabinet 11 and cassette *12 stuck together.

FIG. 4 shows details of the loaded state of the tape cassette 24.
This shows i11. That is, the cassette lid 1
A substantially plate-shaped spring member 27 for holding the tape cassette is provided on the inner surface of the tape cassette 24 in correspondence with the tape cassette 24. This spring member 27 has a base end that is connected to the cassette lid 1.
At the same time, the intermediate portion is engaged with the protruding portions 29 and 30VC of the cassette lid 12. A curved suppressing portion 3 is formed at the tip of the spring member 27, and a medium-thick portion 32 near the tape exposed portion of the tape cassette 24 when the cassette lid J2 is closed.
This is to suppress the false horse part (see FIG. 2) in the direction of the reel axis 15, 16 and in the direction of the horn head, details of which will be described later. Therefore, the loaded tape cassette 24 is
The spring member 27 securely holds the cabinet 1IVc.

FIG. 5 shows a state in which the tuner pack 33 is fully loaded in the cassette tape recorder device in place of the tape cassette 24 (see FIG. 7143). That is, the cassette tape recorder device is not only capable of simply playing back tapes, but also can receive radio broadcasts by using a tuner pack. This uses a tuner bag 33 which is housed in a casing having approximately the same diameter as the tuner circuit section (not shown) which performs all radio wave reception, tuning, detection and amplification. This is carried out by loading the tape into the cabinet 11 instead of using the tape cassette 24 (see FIG. 3). Then, when all desired broadcast stations are selected by operating the tuning dial 35 of the operation unit υ having a display unit 341 provided at one end of the tuner bag 33, the received radio waves are detected and amplified. After being
Headphones (not shown) are connected to a connecting terminal (not shown) and introduced into the amplifier circuit inside the cassette tape recorder device.
This is where the radio broadcast is received. At this time, with the cassette lid 12 closed, the operation section 34 can be operated without opening the cassette lid 12, which may cause irritation between the cassette lid 12 and the cabinet 11.

In this way, the tuner pack 33 is provided with an externally operable operation section LL at one end, and is shaped approximately 1h'' with the cabinet 11, so that the tuner pack 33 can be operated by f4% when loaded in a cassette tape recorder device. 34 is exposed between the cabinet 11 and the cassette tray 12 and serves as an external operation corner. Therefore, in the cassette tape recorder device, there is no need to use all the operating sections for operating the tuner bag 33, and the structure can be simplified and downsized.

Here, FIG. 6 shows the tape recorder mechanism section, the cassette holder 13, etc.

That is, 36 is a main chassis in which a tape recorder mechanism etc. are provided, and this main chassis 36 includes the above-mentioned reel +1! ll]15.16 are provided protrudingly. And, there are details in the parts corresponding to reel shafts 15 and 16. A group of gears of the drive mechanism (r), which will be described later, is provided with a substantially plate-shaped blindfold plate 37 in parallel with the main chassis 36.
A capstan 38, which is a rotary wheel 111 of a flywheel, which will be described later, and a motor 39 for rotating the reel shaft 15, 16, etc. are supported under the eaves. At one end of the main chassis 36 (1, arrow A,
The cassette holder 13 is supported at the b-th position in the B direction. This cassette holder 13 is formed into a substantially U-shape on the side so that the tape cassette 24 (see FIG. 2) is sandwiched in the thickness direction, and the tape of the tape cassette 24 is placed between the upper and lower ends of the cassette holder 13. A notch 40° 41 is formed corresponding to the one-thick part 32 (see Fig. 2) near the exposed part.
Each is formed. The cutout portions 40 and 41 have sloped portions 400, 401, and 410 that are inclined toward the outside at both ends thereof.

41f is formed. For this reason, as shown in FIG.
q When inserting the tape cassette 24, its width and thickness part 3
2 is the length of the notches 40 and 41], and is housed by being guided by the 11f% oblique portions 400, 401 and 410, 411 thereof. Here, the tape cassette 24
Both ends of the front part 32 on the tapered protrusion side are clamped to the bottom of the notch 40.41 and are securely held in position by regulating the position. .

In this way, the cassette holder 24 has sloped portions 400 and 401 corresponding to the width thick portion 32 of the first cassette 24.
and 410 and 41f.
Established. Therefore, the tape cassette 24 inserted into the cassette boulder 24 is guided and inserted into the #1 oblique portion 400° 401.410.411 with the thick width portion 32 sandwiched therebetween. Notches 40 and 41 in the inserted state
The bottom part of the cover ensures that the position is regulated.

Here, as shown in FIG. 6 again, the cassette holder 1
A pinch roller 43 that can move toward and away from the playback head 42 and the capstan 38 is supported at the bottom of the playback head 42 and the capstan 38, respectively. The cassette holder 13 also supports the playback and stop controls 19 and 20, respectively.

Then, on the cassette holder 13, the cassette lid 12 (see FIG. 3) is provided with a round opening,
At this time, the play/stop operator 20.19 closes the cassette lid 12.

It is used for external operation after being pushed through.

When the cassette lid 12 is opened (see Figure 2), the cassette holder 1
3 is rotated in the direction of arrow A to be in the open state. At this time, the playback and stop control 19.20s playback head 4
2. The pinch roller 43 is moved together with the cassette holder 13.

Next, FIGS. 8(a) and 8(b) show details of the production and rewinding states of the drive mechanism of the tail coder mechanism section, and when the cheese is being regenerated and rewinded, each part becomes the winding side. The MTJ reel shafts 15 and 16 are arranged to protrude from the main chassis 36. That is, as shown in FIG. 8(a), the main shear 736 is provided with the reel shaft 15, which is on the wintering side when the tape is being played back, and has a through hole 44 formed in the part /b. There is. A shaft 45 is inserted through the through hole 44, and the base end of this shaft 45 is arranged in parallel with the main chassis 36, and one end is fixed to the main chassis 36 with a screw 46. I'm in a dazzling mood. Then, the shaft 45
In this case, the upper Jf hole 44 was bent and logged as one piece.
1゜The second and third gears 4B and 49.5'O are rotatable and supported so as to be freely movable in the directions of the arrows (;, ■).
, among these, a low joining part 51 is protrudingly provided on the upper surface of the third m wheel 50 located at the top.

Here, the portion of the shaft 45 that protrudes upward in the figure from the third gear 50 has a slightly smaller diameter, and a glue cag 52 for tape playback is rotated in the smaller diameter portion. freely supported. And this reel cag 5
2, a fitting hole 53 is formed in the middle and lower end surface thereof (2) corresponding to the fitting part 51 of the third gear 50, and
A four part 54 is formed at the upper end m1 in the figure so as to surround the shaft 45. This recess 54 protrudes from the tip of the shaft 45, and a locking member 55, which will be described in detail, is fitted into the tip of the shaft 45. And this lock member 55
At the tip of the main chassis 36 is a slanted 11
Jl Shato 561? Tsuba capital 56 is formed with j2,
This collar part 560 has a lock lA: 5 on the lower outer periphery in the figure.
7 is formed.

A coiled tin ring 58 is biased between the lower surface of the first gear 48 and the upper self-supporting member 47, and this spring 58 causes the first, second, and third gears to 4 B, 49°50 is always in the direction of arrow H ((
It is energized.

Here, in the main chassis 36, a shaft 60 is installed approximately in the center between the upstream reel 41jls and the flywheel 59, which is supported by the capstan 3B at an angle σ. A fourth gear 61 with a larger diameter and a fifth gear 62 with a smaller diameter are rotatably supported on this shaft 60 from above in the figure. And the fourth gear 61
A substantially ring-shaped friction member 6 is provided between the fifth gear 62 and the fifth gear 62.
3 intervenes. Further, at the lower part of the shaft 6θ in the figure, there is a stop 64 having a substantially cylindrical shape and having a collar part 641' at the lower part in the figure with a fit of n. Set et al. J], Coil Doctor's Suff'ring 6
5, the fifth gear 62 is connected to the fourth gear through the entire friction member 63.
The gears of the 61st meeting are being suppressed. Therefore, the fourth gear 61 and the fifth gear 62 are in a moving relationship. Among these gears, the fourth gear 61 (1:f) meshes with the gear 66 co-initiated with the flywheel 59, and the first gear of the reel shaft 15. 48 and the second gear 49, and when the first, second, and third gears 4B, 49, and 50 are moved in the direction of arrow G, the second gear 49 and 1
! It is designed to fit together. On the other hand, the fifth gear 62 meshes with the first gear 48 of the reel shaft 15 when the tape is being played back, and the fifth gear 62 meshes with the first gear 48 of the reel shaft 15 when the tape is being played back. Second and third gears4. ! ? , 49. ．． The mesh is released when 5θ is moved in the direction of arrow G (cheese rewinding, folding).
It is something that

On the other hand, in the main chassis 36, a through hole 67 is formed in a portion of the pair of reel shafts 15, 16 where the reel shaft 16, which is the reel shaft 16 on the winding side in the unwinding state, is disposed.
,ing. A rotary wing 168 is arranged approximately at the center of the through hole 67 and at the upper part of the main 7 palm 36 in the figure. It is pushed through a bearing member 69 having a protrusion 691 placed on the peripheral edge of the through hole 67 of the main chassis 36 . The bearing member 69 has a protruding portion 691 screwed onto the upper surface of the main chassis 36 in the figure by a screw 70, and the rotating shaft 68 is rotatable on the main chassis 36. It is.

Here, the diameter of the portion of the rotating shaft 68 that protrudes upward in the drawing from the bearing member 69 is slightly smaller than T1. and
This small diameter portion is a through hole 710"?t formed in the locking member 71 having a substantially bottomed cylindrical shape. After insertion, a reel cap 72 for tape rewinding is fitted into this reel cap. 72 rotates integrally with the rotating shaft 68.
It should be noted that the locking member 71 is independent of the rotating shaft 68. In addition, the bearing member 69
Between the upper end in the figure and the bottom of the locking member 71,
A coiled spring 73 is interposed, and this spring 73 protects the rotating shaft 68 from the locking member 71 and reel cap 72 in the direction of arrow H. Furthermore, at the lower end of the locking member 71 in the figure, there is a l1ji oblique part 74 that is inclined from the bottom to the top in the figure.
1, a first locking portion 74 is formed. The tenth locking portion 74 is formed to have a larger diameter than the through hole 67 of the main chassis 36 .

Further, in the portion of the rotating shaft 68 that protrudes southward and downward from the bearing member 69, a stepped portion 681 with a slightly smaller diameter is formed. A gear 75 is fitted. This sixth gear 75 rotates integrally with the rotating shaft 68, and is movable together with the rotating shaft 68 in the directions of arrows G and H.

And a se! J-Reel shaft 15 and the above reel shaft 16
1.41176°77.78.79 is installed in the main chassis 36 between the two, and each of these axes 76
．． 77.78.79VCIr1. Kawamukai? X 7th
, 8th degree, 9th and 10th gears 80, 81, 82
．． 83 is rotatably supported. Of these, the seventh gear 80, which is close to the reel shaft 15, is connected to the second gear 49 of the reel shaft 15 when the tape is being played back.
and the third gear 50. The seventh gear 80 operates as shown in FIG. 81(b) when the rewind operator 18 (see FIG. 1) is in the suppressed state (tape rewind state). When the first gear 48 is pressed by the member 84 and moved in the direction of arrow G, it meshes with the third gear 50. On the other hand, the tenth gear 83, which is close to the reel shaft 16, is located below the sixth gear 75 of the reel shaft 16 when the tape is being played back. See Figure 1] Figure 8 (b) in the pressed state (tape rewinding state)
), it meshes with the sixth gear 75.

Here, FIG. 9 shows a switching drive @mechanism that completely controls the tape running yarn. -r, that is, the rewinding member 84 is moved toward the main chassis 36 by arrow 1. This unwinding member 84 is provided so as to be rotatable in the J direction.
One end is engaged with a rewind drive IJJ member 85 whose middle portion is rotatably supported in the L direction with respect to the main chassis 36 in the direction of the arrow. ing. A drive section 86 having an inclined section 861 is formed at the other end of this rewinding drive section 85, and this inclined section 861 serves as the reel for rewinding the upper part of the reel. The lock member 71 of 11III16 is engaged with the orchid part 741 of the first locking part 74. For this reason, the above-mentioned restoring operator 1B (see FIG. 1) is operated to suppress 1. Then, the drive portion 86 of the rewind drive member 85 is pressed by the first locking portion 74YC of the lock member 71, and is rotated in the direction of the arrow. At this time, the rewinding drive part phase 85
The other end urges the rewinding member 84 to rotate Du1 in the direction of arrow 1, and this rewinding member 84 urges the first 48 eyes in the direction of arrow G. For this reason, the above 1. Second and third gears 4B, 49°50 are springs 58
It moves in the direction of arrow G with respect to the axis 45 marked 8U against the spring force n, ii. Here, as described above, the third gear 50 and the seventh gear 8θ mesh with each other, and the sixth gear 75
and the tenth gear 83 are meshed with each other, and the second gear 4
9 and the fourth gear 61 mesh with each other.

Further, the locking member 71 of the reel shaft 16 on the rewinding side has a second locking portion having an inclined portion 871 entirely corresponding to the first locking portion 74, as shown in FIG. 87 is formed, and this 20th locking portion 87 is connected to the reel shaft 16.
A locking portion 9 that protrudes from the lock plate 89 at the pressed position.
I'm trying to spread the word to everyone in charge. Here, the lock plate 89 is rotatably supported at its intermediate portion by a rotation shaft 91 implanted in the main chassis 36 . The other end of the lock plate 89 is connected to the playback operator 19.
and integrally formed with the stop operation element 20'! 1.6 It is engaged with the drive parts 92 and 93. Then, when the playback operator 19 is operated, the lock plate 89 locks the drive section 9 of the playback operator 19. ? The regeneration operator 19 is rotated in the direction of arrow M against the spring force of the spring 94.
The upper end of the drive unit 92 is designed to be locked at all operating positions. Here, the stop operator 20 is operated with the playback operator 19 locked to the lock plate 89.

Then, the drive section 93 of the stop operation element 20 operates the reproduction operation element 19 and rotates it in the direction of arrow M slightly more than in the second state, thereby completely unlocking the reproduction operation element 19. .

Furthermore, a switch slider 95 is arranged in parallel on the lower surface of the lock plate 89. Then, in response to the operation of the regeneration operator 19, the motor power switch 11 (not shown) is fully turned on, which operates against the spring force of the spring 96 in substantially the same way as the lock plate 89, and the FLI motor 39 (sixth
(see figure) is rotated in a predetermined state (Tenasa Leopard,
ing.

Here, when the stop operation element 20 is operated (n6) in the same manner as the lock plate 89 mentioned above on the switch slider 95, the lock is released and the stop operation element 20 returns to its normal position.

In the configuration described above, when the playback operator 197a is operated while trying to play a tape,
As the playback head 42 and pinch roller 43 begin to move, the f'L playback head 42 comes into contact with the tape, and the pinch roller 43 touches the tape. via capstan 38
Pressed against.

At this time, in conjunction with the operation of the playback operator 19, the lock plate 89
As described above, the switch slider 95 is rotated in the direction of the arrow M in FIG. 9 against the spring force of the springs 94 and 96.
As a result, the playback operator 19 is locked at the operating position.

At this time, the switch slider 95 turns on the motor power switch, so that the motor 39 (see FIG. 6) is rotationally driven.

The flywheel 59 is rotationally driven by the motor 39 as shown in FIG. 8(a).

Here, this rotational force is co-rotated with the flywheel 59.
The rotational speed is transmitted to the fourth and fifth gears 61 and 62 by the wheel 66, of which the fifth gear 62 rotationally drives the first gear 48. Therefore, the partition part 51 of the third gear 50 is fitted into the fitting hole 53 of the reel cap 52 of the reel cap 52 on the playback side, thereby making it integral. The rotational force of the gear 48 is transmitted n, and there is no reproduction run of the tape fL/).

Next, as the tape rewinder, the rewind operator 2
When the 0"f operation is performed, the reel cap 72 of the reel shaft 15 is pressed as shown in FIG. The second locking portion 87 of the locking member 71 is moved to the switch slider 95.
is pressed to fully turn on the motor power switch and drive the motor 39 (see FIG. 6) to full rotation.

At this time, the second locking portion 87 of the locking member 71 is locked at the locking portion 90 of the locking plate 89 at the operating position, as described above.

On the other hand, when the reel cap 72 of the reel shaft 16 is depressed, the first transmission shaft 68 and the sixth gear 75 move in the direction of the arrow G, and the sixth gear 75 moves to the tenth gear. meshes with the gear 83 of n/).At this time, the locking member 71
The first locking portion 74 pushes the rewinding drive member 85, thereby moving the rewinding drive member 85 and the rewinding member 84 as described above (b), so that the lth gear 48 fully moves Press in the G direction. So the first thing. The second and third gears 48°49.50 are moved in the direction of arrow G with respect to the shaft 45, and
The fitting between the fitting portion 51 of the third gear 50 and the fitting hole 53 of the reel character 152 on the reproduction side is released f1. Therefore, the rotational force of the flywheel 59 is transferred to the gear 66, the fourth gear 61. Second gear 49, third gear 50, seventh gear 80, eighth gear 81. The reel cap 72 on the rewind side is driven to rotate at a higher speed than in the tape playback state by being sequentially transmitted to the ninth gear 82, the tenth gear 83, and the sixth gear 75. The tape is then rewinded.

Fast forward the tape here! For precise adjustment, by operating a fast-forward operator (not shown), a governor circuit (not shown below) is magnetically activated in conjunction with this fast-forward operator. The motor 39 (see Fig. 6) is rotated at a high speed without being removed, and the reel cap 52 on the reproducing side is rotated at a higher speed than in the raw state to perform the cheese transport operation. It is something.

In this way, f is formed in the thickness direction of the tape cassette 24.
Reel hub part 25°26 (second
Among the reel shafts 15 and 16 of the cassette tape recorder device that are inserted into the reel shaft (see figure), the reel shaft 16, which is on the winding side in the rewinding state, is used as an operating member that operates in the axial direction. There is no waste in the structure, and the operation can be performed organically and reliably.

In addition, for drive switching for tape rewinding, a drive switching mechanism is provided for the reel shaft 15, 16, and this drive switching mechanism? It is configured to respond in conjunction with the suppressing operation of the reel shaft 16 on the rewinding side. For this reason, the structure is simplified and there is ample space, making it convenient to use a J-shape as a simple VC.

By the way, FIG. 10 shows the cassette and i2 fully open position (a
The details of the locking mechanism are shown in full. That is, on the reel shaft 15 on the playback side, the lock portion side 55 described above is located at the tip of the shaft 45.
A substantially rectangular through hole 97 is formed in the cassette lid 12 facing the lock member 55 . This tFL9
At 7, the aforementioned lock operation element 17 is arranged so as to be slidable in the directions of arrows C and D. A lock portion 98 is provided on the lower surface of the lock operator 17 so as to protrude from the lock groove 57 of the lock member 55 . Here, one end of a coiled spring 99 is engaged with a portion of the lock operator 17.
The other end is engaged with a stepped portion 971 formed at one end of the through hole 97 of the cassette piece 12.

Therefore, the lock operator 17 is always urged in the direction of the arrow by the tin ring 99 against the lid 12K.

That is, when the cassette lid 12 is moved from the closed position to the open state (see FIG. 2) with respect to the cabinet 11,
First, when the lock operator 17 is slid in the direction of arrow C against the spring force of the spring 99, the lock portion 98 of the lock operator 17 is moved in the direction of arrow C. Therefore, the above-mentioned force cella) li 72 i'j: the above-mentioned lock operator 1
Lock debris 57 of the lock member 55 by the lock portion 98 of No. 7
When the latch is released and the f-loh is released, it can be placed in the open state.

Here, the cassette tray 12 may be provided with a spring member so as to apply a spring force in the opening direction, and the cassette tray 12 may be configured to be opened with respect to the cabinet 11 by the spring force of the spring member, thereby making it more effective. effect? It's something you get.

In addition, when the cassette lid 12 is to be locked with respect to the cabinet 11 from the open state to the closed position (see FIG.
Then, as shown in FIG.
The lock portion 98 moves along the oblique portion 561 around 1 of the lock member 55 of the reel shaft 15! 1I 21 is locked in the lock groove 571, and here the upper cassette lid 12 is locked.
is locked to the cabinet 11 in the closed position (see FIG. 1).

In this way, the n60 lock member 55 provided on the reel shaft 15 is directly locked with the lock portion 98 of the lock operator 17,
The VC is configured to lock the cassette lid 12'f in the closed position. Therefore, the cassette tape recorder device can be completely simplified in its structure and miniaturized.

In the above embodiment, the size of the cabinet 11 of the cassette tape recorder device is smaller than the outer periphery of the entire tape cassette 24 so that the outer periphery of the tape cassette 24 protrudes, but the size of the cabinet 11 is not limited to this.
The M effect can also be obtained by making the tape cassette 24 approximately the same shape as the tape cassette 24 of the same size and size, so that at least one end surface of the tape cassette 24 is exposed when the tape cassette 24 is stuck.

In addition, it goes without saying that the glaze may be modified in any way without departing from the spirit of the invention.

〔Effect of the invention〕

As described above, the present invention has a simple structure and can control the entire drive system reliably, thereby providing an extremely good tape recorder drive mechanism that can effectively promote miniaturization. @ru.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a cassette tape recorder to which the present invention is applied, and FIGS. 3 is a perspective view showing the state in which the tape cassette is installed in FIG. 1, FIG. The cassette tape in the figure - recorder device K tuner pack? A first congratulations view showing the loaded Fukudoku Matsu, Figure 6 is a perspective view showing the tape recorder mechanism MIS' in Figure 1, and Figure 7 is a view of the cassette holder. FIGS. 8(a) and 8(b) are perspective views showing a state in which the tape cassette is inserted into the tape recorder according to an embodiment of the present invention. 9 is a perspective view showing the switching drive mechanism in FIG. 8(a) and FIG. 8(b), FIG. ... Cabinet, 12 ... Cassette lid, 13
...Cassette holder, 14...Storage section, 15°16
...Reel shaft, 17...Lock operator, 18...
Return operator, 19... Regeneration operator, 2θ... Stop operator, 2I... Front door, 22... Notch,
23...Torsion spring, 24...Tape cassette 1.2.5.26...Reel hub part, 27...
・Spring member, 28...Locking part, 29.3'0...Protrusion part, 31...Press part, 32...Thick width part, 33...
・Tuner pack, 34...Operation unit, 35...Tuning dial, 36...Main shear 7.37...Setting up/down, 38...Cab stun, 39...Motor, 40.41... Notch, 42... Playback head, 4
3...Pinch roller, 44...Through hole, 45...Shaft,
46...Screw, 47...-i holding member, 48...First wheel, 49...Second gear, 50...Third gear, 51...Fitting part , 52... reel cap, 5
3... Matching hole, 54... Recessed portion, 55... Lock member, 56... Flange portion, 57... Lock groove, 58...
Spring, 59... Flywheel, 60... Axis, 6... Fourth gear, 62... Fifth gear, 63
... Shore sliding member, 64 ... Stopper, 65 ... Spring, 66 ... Gear, 67 ... Through hole, 68 ... Rotating shaft, 69 ... Bearing member, 70 ...・Screw, 71...
・Lock member, 72... Reel cap, 73...
Spring, 74...first locking part, 75...sixth
gear, 76.77.78.79...shaft, 80...
7th gear, 81... 8th gear, 82... 9th gear, 83... 10th gear, 84... Rewinding member, 85... Rewinding drive member, 86・・・Driver part, 8
7... Second locking part, 89... Lock plate, 90...
・Latching part, 9 ・・・LoI Mausoleum B, 92 ・・・
・Drive part, 93...Kaku! 94...Spring, 95...Switch slider, 96...Spring, 97...Through hole, 98...Lock part, 99...
・Suzuring. Kawagan's agent Patent attorney Takehiro Suzue Figure 9 Figure 10 41 47

Claims (1)

[Claims] The first reel shaft is provided so that it can be freely suppressed in the axial direction.
A second reel shaft, a rotating body provided coaxially with the first reel shaft and movable in the axial direction; a switching drive mechanism for controlling the entire rotating body from a first position in which it is engaged with the first reel shaft to a second position in which it is disengaged; and a switching drive mechanism that controls the rotating body in the first position. a first reel shaft that transmits rotational force from a source to the first reel shaft through the rotating body at a constant speed;
a first transmission mechanism for transmitting rotation from the drive source at a second position of the rotary body, and a first transmission mechanism for transmitting rotation from the drive source at a direct speed to the second reel shaft by fully valving the rotary body; 2
A drive mechanism for a tape recorder that is completely equipped with a transmission mechanism.