JPS6010434A - Cassette tape recorder device - Google Patents

Abstract

PURPOSE:To perform sure control with a simple constitution and to make a device easy to use, by connecting organically individual mechanism parts of a small-sized tape recorder to add an autoreverse function or the like. CONSTITUTION:When a tape comes to the end, a reverse driving lever 83 is turned counterclockwise to release detention of a detaining part 845 because a terminal detecting mechanism turns a detecting lever 82 clockwise in a figure. In this case, a reproducing slider 38 turns a gear clockwise, and the gear 84 is engaged with a gear 50 and is rotated. Therefore, the lever 83 is guided to a projecting part 848 by a guide 832 and is detained by another detaining part 846. A cam part 85 is rotated in the same direction in accordance with the rotation of the gear 84 to move a reproducing slider 38 in the direction of an arrow F or E. Thus, the reproducing slider 38 operates the first or the second changeover slider 39 or 40 to switch the tape running state to the forward or backward tape running state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to an improvement in a cassette tape recorder device aimed at miniaturization.

[Technical background of the invention and its problems]

Recently, cassette tape recorders are small and lightweight, making them suitable for carrying around, and 2-way stereo type devices have become popular, especially for playback using headphones. It is made so that you can enjoy it. Such headphone-only portable cassette tape recorders have already been made as small as possible, and at present are approximately the same size as a cassette case that houses a tape cassette.

By the way, the next requirement for this type of miniaturized cassette tape recorder is to organically connect each part of the tape recorder mechanism 17 and add an auto-reverse function, a recording function, etc. to improve usability. The goal is to promote power-saving measures to reduce power consumption.

In response to this trend, miniaturized cassette tape recorders with the various functions described above are emerging, but as they are still in the development stage, they are not always satisfactory in terms of usability.

However, it is desired to promote miniaturization, control various functions in an efficient configuration, and improve usability including operability.

[Purpose of the invention]

This invention has been made in view of the above circumstances, and an object thereof is to provide an extremely good cassette chip recorder device that has a simple configuration, can perform reliable control, and has improved usability. .

[Summary of the Invention 1] That is, the present invention includes a drive source that drives a first rotating body that rotates regardless of tape running, and a drive source that has a portion that is not aligned with the first rotating body. A second rotating body that is engaged to transmit rotational force and first and second positions that cause the tape recorder mechanism to run in forward and reverse directions in conjunction with a tape end detection mechanism or a manual reverse operator. a cam part formed on the second rotating body and having first and twentieth locking parts for controlling the operating member in the first and second positions; first and second locking portions that are formed and rotate in a direction in which the second rotary body is engaged with the first rotary body in response to the actuation force of the actuation member corresponding to the first and second locking portions; 2, a switching mechanism that switches tape running between forward and reverse directions by locking the first and second rotating bodies, and a remotely operated mechanism that reverses the drive mode to switch the drive mode. The present invention is characterized by comprising a switching means for operating the mechanism.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Figures 1(a) and (b) are, respectively,
This figure shows a cassette tape recorder to which the present invention is applied, as seen from the front and side. That is, 11
1 is a cabinet which is approximately box-shaped and formed to approximately the same size as a cassette case for storing tape cassettes, and one plane portion of this cabinet 1 serves as a cassette lid 12 as it is. And, this cassette lid 12 is
The user manually removes the central part (Δ) and (B) of FIG. 1(b).
) is opened and closed by rotating in the direction of 1.
At i:3, each is lightly locked and supported to prevent wobbling. Further, the cassette lid 12 has a cassette holder on its back surface, the details of which will be described later.

This cassette holder is linked to the opening/closing operation of the cassette lid 12 and holds the tape cassette 13.

Here, inside the cabinet 11 is the cassette lid 1.
There are provided a storage section I4 which can accommodate the tape cassette I3 in a closed state, and a mechanism storage section I5 in which a tape recorder 4S structure, etc., which will be described later, is installed. i! A portion of the cabinet 11 facing the tape exposed surface of the tape cassette Z3 includes a recording/playback head (hereinafter referred to as recording head), an erasing head, a pair of right and left pinch rollers, etc., which will be described later. A head portion Z6 is provided. This head part Z6 is even interlocked with the opening/closing operation of the cassette lid I2 together with the cassette holder.

As shown in FIG. 1 (8), inside the storage section 14 are a pair of right and left reels that are fitted into a pair of reel hubs (not shown) of the tape cassette I3 and are driven to rotate according to the running direction of the tape. Shafts 17, 18 are respectively arranged. On the other hand, the cassette lid 12 has a fast-forward operator 19 located at a position opposite to the right and left reel shafts 17 and 18, which are on the chive winding side during fast-forwarding and rewinding (when the tape runs in the forward and reverse directions). and a rewind operator 20 are provided, respectively. These fast forward υ and rewind operators 19.20 are
Rotating shaft 171.18 of the above right and left reel shaft 27.18
1 in the direction of its axis.

The cassette M12 has the head 151
i 76, that is, at a position that does not face the flat surface of the tape cassette 13 to be stored.
1. A playback operator 22, a recording operator 23, and a manual reverse operator 24 are installed substantially perpendicular to the surface of the cassette shaft 12 so as to be operable to suppress. Furthermore, the cassette lid 12
A window 25 is provided approximately in the center of the window 2.
Reference numeral 5 is made of, for example, a transparent acrylic plate, and is installed so as to partially overlap the tape viewing window of the tape cassette 13.

Here, in the cassette lid 12, between the fast forward and rewind operators 19 and 20 and the stop operator 21, there is a long hole having an inclination that spreads outward from the storage section 14. 121 is formed. This elongated hole 121 is provided so that a tuning operation can be performed with the cassette lid 12 closed during radio reception using a tuner back (not shown). In other words, this cassette tape recorder is not only capable of playing and recording tapes;
Radio broadcasts can be received using the tuner 4 mentioned above. This is used to receive radio waves, tune in,
The tuner bag, which houses the tuner circuit section that performs wave detection, amplification, etc. in a casing, is called a cheese cassette 1.
This is done by loading the container into the storage section 14 instead of the storage section 3. When the desired broadcasting station is selected by operating the tuning dial provided on the tuner back, the received radio wave is detected and amplified, and then sent to the main amplifier circuit in the cassette tape recorder via the connection terminal. It is installed and played through headphones to receive radio broadcasts. At this time, with the cassette lid 12 closed, the tuning dial of the tuner back is inserted through the elongated hole 121 and protrudes to the outside, so that the tuning operation can be performed without opening the cassette lid 12. .

Still, the manual reverse of the cabinet 11 (
1) A number-of-times limit switch for setting the parse, which will be described later, is provided on the side corresponding to the slider 24. Furthermore, a volume adjustment dial, a headphone jack, etc. (not shown) are provided on the side of the cabinet 11.

Here, FIG. 2 shows the overall appearance of the tape recorder mechanism section, head section 16, cassette holder, etc. installed in the mechanical storage section 15. That is, 26
1 is a main chassis of the tape recorder machine part, in which the right and left reel shafts 17 and 18 are supported so as to be rotatable and slidable in the axial direction. The main chassis 26 is provided with a pair of right and left cazostans 27.28, which are the rotational axes of the right and left flywheels, which will be described later, and the right and left reel shafts 17.18, and is also configured to rotate these. Motors 29 and the like are supported respectively. A cassette holder 30 is supported at one end of the main chassis 26 so as to be rotatable in the directions of arrows (A) and (B) in the figure. Figure 1 (
Holding part 301. (see b)) so as to sandwich both ends of the wide side in the thickness direction. ．． 102 is formed. Further, an upper recording/reproducing head 31 and an erasing head 32 are supported approximately at the center of the cassette holder 30, and a pair of right and left pinch rollers 33, 34 are supported so as to sandwich the recording/reproducing head 3I and erasing head 32. has been done. These right and left pinch rollers,? , 9 and 34, which will be described later, are installed so that they can selectively approach and separate from the right and left cabs 27 and 28 in accordance with the forward and reverse constant speed running of the tape. Further, the cassette holder 30 has the above-mentioned stop.

Playback, recording and manual reverse controls 21°22.2
3.24 are each supported in a freely suppressed manner.

The cassette lid 12 (see FIGS. 1(a) and (b)) is mounted on the cassette holder 3o with the cassette lid 12 (see FIGS. 1(a) and 1(b)) covered.

Recording and manual reverse controls 21, 22° 23.2
4 are respectively protruded to the outside and provided for external operation. Here, when the cassette lid 12 is opened, the cassette holder 3o is rotated in the direction of arrow (A) in FIG. 2, and is brought into the state shown in FIG. 3.

At this time, the stop, play, record and manual reverse controls 21, 22, 2, ? , 24, recording/reproducing head 3
1. Erasing head 32, right and left pinch rollers;? J
, 94 are moved together with the cassette holder 3o.

Next, the configurations of the tape recorder mechanism section and head section 16 will be explained. That is, in Figure 4,
At the lower part of the main chassis 26 in the figure, the recording/reproducing head 31, erasing head 32, right and left pinch rows 233, 34, etc. supported by the cassette holder 3o (see FIG. 2) are located. Of these, the recording/reproducing head 31 and the erasing head 32 are supported by the cassette holder 3o via a helad chassis 35. The rotary shaft 35 provided at the right end in the figure is loosely fitted into the cassette holder 3o of the Herad chassis 35, as shown by the arrows (C) and (
D) is rotatably supported in the direction. Further, a substantially central portion of the right pinch lever 36 is rotatably supported on the rotation shaft 351. This right pinch lever 36 has one end attached to the pinch roller 3 with the rotation shaft 351 as the center.
3 is rotatably supported, and a driving portion 362 having an inclined portion 36 is formed at the other end.

Here, one end of the helad chassis 35 has the -\
The rotary shaft 35 is secured to one side of the RAD chassis 35, and the other end is wound around the rotary shaft 351 and secured to the cassette holder 3o by a torsion ring (not shown).
It is rotated in the direction of arrow 0)) about 51. The right pinch lever 36 is rotated in the direction of arrow (C) about the rotation shaft 35 by a spring (not shown) that is engaged between the right pinch lever 36 and the helad chassis 35. energized.

The cassette holder 30 is still attached to the chassis 3 of the cassette holder 30.
5, a left pinch lever 37 is installed at a position substantially symmetrical to the cloth pinch lever 36. The left pinch lever 37 is supported at its approximate center by a rotating shaft 371, and the left pinch roller 34 is rotatably supported at one end on the right side in the figure about the rotating shaft 371. At the same time, a driving portion 373 having an inclined portion 372 is formed at the other end on the left side in the figure.

The left pinch lever 37 is urged to rotate in the direction of arrow (C) about the rotation shaft 37 by a spring (not shown).

Here, a reproduction slider 38 is installed on the lower surface of the cassette holder 30 and moves in the directions of arrows (E) and (F) corresponding to the tape running direction.

In other words, the main chassis 2! In the figure, shafts 260, 261, and 262 are installed at the lower end, and these shafts 2
60, 261, and 262 are inserted through long holes 380°, 387, and 382 formed in the reproduction slider 38, so that the rq raw soot slider 38 can freely slide in the arrow (F, :), (F) directions. . The playback slider 38 has the cloth and the left pinch lever on both ends thereof. The protrusions 38, ? correspond to the drive parts 362; 373 of 6, 37, respectively. , 384 are formed, and
First and second engagement pieces 385 and 386 are formed that can be engaged with bent engagement portions 391 and 401 formed on first and second switching sliders 39 and 40, respectively, which will be described later. There is. Here, the reproducing slider 38 has a spring engaging portion 38A formed at its intermediate portion, and a pair of spring members sgB and ss'c are respectively attached to the engaging portion 38A to attach the reproducing slider 38 to the intermediate position. It is attached in such a way that it gives strength. Note that the reproducing slider 38 is
The above-mentioned protrusion 3B, ? , , 984 are located between the tip of the loaded chip cassette I3 (see FIG. 1(b)) and the center of rotation of the cassette holders S, O (see FIG. 3).

That is, when the playback slider 38 is slid in the direction of arrow (E), the right pinch lever 36 and the left pinch lever 36 are moved by the protrusion 383 on the right side in the figure to the inclined part 361 of the drive part 362. The right pinch roller 33 is pressed against the right capstan 27 as it is rotated in the direction of arrow (C) against the biasing force. At this time, the left pinch lever 37 is moved in the direction of arrow (D) by the biasing force of the spring because the protrusion 384 on the left side of the reproduction slider 380 is positioned at the tip of the inclined part 372 of the drive part 373. The left pinch row 234 is separated from the left capstan 28 by 111.

In addition, when the playback slider 38 is slid in the direction of arrow (F), the left pinch row 234 is pressed against the left capstan 28 and the right pinch roller 33 is pressed against the right capstan by operating in substantially the opposite direction to that described above. 27 to the front corner.

Further, as shown in FIG. 5, FIG. 6, and FIG. 7, a substantially U-shaped playback drive member 41 is installed at the left end in the drawing of the head chassis 35 supported by the cassette holder 30. A retaining portion 411 extending from one end of the reproduction drive member 4 is engaged with one end of the above-mentioned spare chassis 35. The playback drive member 41 is attached to the end of the main chassis 30 under the cassette holder 30 with an arrow mark (
G) is rotatably supported in the direction.

Here, as described above, the playback operator 22 is disposed on the cassette holder 30 facing the playback drive member 41, and at one end of the playback operator 22 there is an operation shaft 221 projecting downward. will be extended. In addition, a through hole 222 is formed at the other end of the keratinization operator 22, and the through hole 222
22, a recording operation element 23 is inserted therethrough so as to be freely operable. This recording operator 23 has an operating shaft 231 extending from its lower surface substantially parallel to the rubbing axis 221 of the playback operator 22, and each of these operating shafts 221, 231 is supported by the cassette holder 30. It is inserted through and supported by the bearing member 42.

11. The bottom surface of a first driving section 223 having a substantially conical shape is attached to the operation shaft 221 of the playback operation element 22. Ru.

This first drive section 223 has its top connected to the top of a substantially conical second drive section 225 via a shaft 224,
The bottom surface of this second drive section 225 is the regeneration drive member 41.
It is opposed to the bottom part of. - The bottom surface of a first driving section 232 having a substantially conical shape is attached to the operating shaft 231 of the sumo wrestler recording sound operating element 23. The top of the first drive section 232 is connected to the top of a substantially conical second drive section 234 via a rib 233, and the bottom surface of the second drive section 234 is connected to the top of the regeneration drive member 41. It faces the bottom surface of a substantially U-shaped recording drive member 43 arranged in parallel at one end. And the above first
The driving portion 232 is capable of engaging with an engaging portion 412 formed by bending an upper portion of one end of the regeneration driving member 41 .

The recording drive member 43 also includes the playback drive member 41.
A driving part 431 is formed at one end opposite to the engaging part 412 of the recording slider 44 so as to be engageable with the bending engaging part 441 of the recording slider 44 .

That is, assume that the playback operator 22 is now pressed in the stopped state shown in FIG. Then, the playback operator 22
, the bottom surface of the second drive section 225 is the reproduction drive member 41
, and rotate the regeneration drive member 41 in the direction of arrow (G).

Therefore, the retaining portion 411 of the playback drive member 41 rotates the helad chassis 35 (see FIG. 4) as described above, and hits the record 1 [) head 31 against the tape. The left pinch rollers 33 and 34 are pressed against the right and left capstans 27 and 28 via tape.

The playback operator 22 is locked in the operating position, and its locking plate will be described later.

It is also assumed that both the playback and recording controls 22 and 23 are suppressed as shown in FIG. 6 while recording is not being performed. Then, as shown in FIG. 8, the recording operator 23
The bottom surface of the driving section 234 presses the bottom surface of the R sound part moving member 43, and the recording driving section @43 is rotated in the direction of arrow (6).

Therefore, in the recording driving member 43, its driving portion 4.91 presses the recording slider 44 and slides it in the direction of the arrow αη force. Here, the recording slider 44 turns on a needle sound generation selector switch (not shown) to put the circuit section into a recording state, and
An erasing head 32 (see FIG. 5) is brought into contact with the tape. Then, when the recording operator 23 is in its operation position, the bottom surface of the first drive section 232 is activated for the above-mentioned reproduction! ? K%11
It is engaged with and locked by the engaging part 412 of the part 4I.

On the other hand, when the playback operator 22 is operated, the recording/playback head 3 is brought into contact with the tape as described above, and the right pinch row 233 is pressed against the right capstan 27 via the tape. is to be done.

Here, again, as shown in FIG.
A small-diameter goury 45 is fitted onto the rotating shaft 291 of the motor 29. The above-mentioned right and left flywheels 46 and 47 are rotatably supported at the lower end of the main chassis 26 in the figure, and these right and left flywheels 46-47 and the above-mentioned Zori 4
5, a belt 49 is wound around the belt 49 via an intermediate belt 48 so that rotational force can be transmitted. Here, the rotational axes of the right and left flywheels 46 and 47 are the right and left key V-pustans 27 and 28, respectively. The right and left flywheels 46 and 47 have small diameter gears 5θ,
51 are formed coaxially. Here, among the right and left reel shafts 17° 18 provided approximately at the center of the main chassis 26, the left reel shaft xsn, which is on the take-up side when the tape runs in the reverse direction, is It is installed in the main chassis 26. That is, a through hole 263 is formed in the main chassis 26 at a portion where the left reel shaft 18 is inserted several times. A bearing side 53 having a substantially cylindrical shape and having a flange 531 with a larger diameter than the through hole 263 at the lower part of the figure is inserted into the through hole 263, and the peripheral edge of the through hole 2630 and the flange 53 is fixed.

The left reel IpH1 is located inside the bearing part @53.
18 rotating shafts 181 are inserted rotatably.

In addition, the portion of the rotating shaft 181 that also protrudes upward from the bearing member 53 includes a bottomed cylindrical lock 7r and an IH old 54.
After inserting the through hole 541 formed at the bottom of the reel cap 55, the reel cap 55 is fitted. Here, the reel cap 55 is rotated integrally with the rotating shaft 181, but the lock 4 and 54 are made independent of the rotating shaft 181. Further, a coil-shaped spring 56 is disposed between the upper end of the bearing member 53 and the lock member 54.
is interposed, and the rotating shaft 181 is urged upward via the locking member 54 and the reel cap 55. Furthermore, a pressing portion 542 and an engaging portion 543 that are inclined in a predetermined direction are formed at the lower end portion of the locking member 54 . Of these, the pressing portion 542 is the first
The locking section 53 can be engaged with an engaging portion 392 formed on the switching slider 39, and the retaining portion 53 can be engaged with a lock slider to be described later.

The rotating shaft 1 still protrudes below the bearing member 53.
The diameter of the portion 8 is made slightly smaller, and a gear 57 with a smaller diameter is fitted into the smaller diameter portion. A large-diameter gear 58 is fitted into the lower end of the small-diameter gear 57 and is slidably provided in the axial direction with respect to the rotating shaft 181 . Here, this large diameter gear 58 is connected to the rotating shaft 181.
A coiled spring 59 is interposed between the washer 182 and the washer 182, which is disposed at the lower end of the gear, so that it is biased upward and is fitted into the small diameter gear 57. A driving portion 601 of a switching drive lever 60 rotatably supported by the main chassis 26 is engaged with the upper surface of the large-diameter gear 58. Accordingly, the driving section 601 presses the large diameter gear 58 in the axial direction to release the engagement with the small diameter gear 57.

Here, as shown in FIG. 4 again, the main chassis 2
A shaft 264 is implanted in the intermediate portion between the left reel shaft 18 and the left flywheel 47 of No. 6. This axis 264
As shown in FIG. 9 again, a large-diameter gear 61 and a small-diameter gear 62 are rotatably supported. And between the large diameter gear 61 and the small diameter gear 62,
Roughly ring-shaped J? A rubbing member 63 is interposed. Also,
At the lower end of the small diameter gear 62 of the shaft 264, a fitting 64 having a substantially cylindrical shape and a flange 641 is fitted. A small diameter gear 6 is formed by a coiled spring 65 provided above.
2 presses the large diameter gear 61 via the friction member 63, and the large diameter gear 61 and the small diameter gear 62 are interlocked. Here, the large diameter gear 61
is meshed with the gear 51 of the left flywheel 47 and can be meshed with the small diameter gear 57 of the left reel shaft 18, and the small diameter gear 62 is meshed with the gear 57 of the left reel shaft I8. It can mesh with a gear 58 having a large diameter. And, as mentioned above, gears 6 with large diameter and small diameter.

62 is a small diameter gear 57 and a large diameter gear 57 of the left reel shaft 18.
．． 58, and the small diameter gear 62 and the left reel shaft 1 are selectively meshed with each other when the tape is running at a constant speed in the opposite direction.
The large diameter gear 57 of the left reel shaft 18 is meshed with the large diameter gear 61 and the small diameter gear 5 of the left reel shaft 18 when the tape is rewinding.
8 are interlocked.

On the other hand, among the right and left reel shafts 17 and 18, the right reel shaft 17, which is on the winding side when the tape runs in the forward direction, is installed in the main chassis 26, as shown in FIG. That is, a through hole 265 is formed in the main chassis 26 at a portion where the right reel shaft 17 is inserted. A bearing member 66 having a substantially cylindrical shape and having a flange portion 66 having a larger diameter than the through hole 265 is inserted into the through hole 265 and has a substantially cylindrical shape. The collar portion 661 is fixed. The rotating shaft 171 of the right reel shaft 17 is rotatably inserted into the bearing part @66.

'-i:l' Here, the portion of rotation 111+ 777 shown in - that protrudes above the bearing member 66 is inserted through the through hole 671 formed at the bottom of the bottomed cylindrical lock 4 67. , a reel cap 68 is fitted. By the way, this reel cap 68 is rotated integrally with the rotation shaft 171, and the lock portion @67 is rotated integrally with the rotation shaft 171.
It is considered to be unrelated to 1. Further, a coiled spring 69 is interposed between the upper end of the bearing member 66 and the locking member 67.
71 is the lock member 67 and the reel character 7''68
It is being directed upwards through. Further, at the lower end of the locking member 62, a pressing portion 67 is provided which is arranged in a predetermined direction.
2 and an engaging portion 673 are formed. Of these, the suppressing portion 672 is capable of engaging with an engaging portion 402 formed on the second switching slider 40, and the retaining portion 673 is capable of being engaged with a lock slider to be described later. ing.

In addition, the diameter of the portion of the rotating shaft 171 that protrudes below the bearing member 66 is slightly reduced, and a small diameter +j14 oki 70 is fitted into the small diameter portion of υ. . A large-diameter pawl 71 is provided at the lower end of this small-diameter gear 70 so as to be slidable in the axial direction with respect to the rotating shaft 171.
are fitted. Here, the large-diameter gear 71 is urged upward by a coiled spring 72 interposed between it and a washer 172 attached to the lower end of the rotating shaft 171. The fitting with the gear 70 is made. A driving portion 731 of a switching drive lever 73 rotatably supported by the main chassis 26 is engaged with the upper surface of the large-diameter gear 71, and as the switching drive lever 730 rotates, R1-'+
A! The moving part 731 presses the large diameter gear 71 in the axial direction to release the engagement with the small diameter gear 7o.

Here, the right reel shaft 17 of the main chassis 26,
Shafts 266 and 267 are implanted midway between the shaft 264 and the shaft 264. A gear 74 is rotatably supported on the shaft 266, and this gear 74 is meshed with the small diameter gear 62 of the shaft 264. The gear 74 meshes with the large-diameter gear 7o of the right reel shaft 17 when the tape is running at a constant speed in the forward direction, and rotates the right reel shaft 17 at a constant speed.

Further, the gear 74 slides in the axial direction when the right reel shaft 17 is in a suppressed state and the tape is running at a constant speed in the reverse direction, as will be described in detail later. Therefore, the meshing is released.

On the other hand, a gear 75 is rotatably supported on the shaft 267, and this gear 75 is connected to the large diameter gear 6 of the shaft 264.
1. The gear 75 meshes with the small-diameter gear 70 of the right reel shaft 17 when the right reel shaft 17 is suppressed, and rotates the right reel shaft 17 at high speed. .

Further, as shown again in FIGS. 4 and 9, a rotation shaft 268 is implanted in the intermediate portion between the cloth of the main chassis 26 and the left reel shaft 1.7.18. This rotation axis 2
At 68, the first and second switching slides 39 and 40, each having an abbreviated shape, are supported so as to be mutually rotatable independently in a stacked state. The retaining part 392 is formed at one end of the first switching slider 39 and is inclined so as to face the pressing part 542 of the left reel shaft 18 . A protruding suppressing portion 393 is formed. This suppressing portion 393 is engaged with a protrusion 732 formed at the other end of the switching drive lever 73 that is held by the large-diameter gear 71 of the right reel shaft 17. Further, the first switching slider 3
As described above, the bending engagement portion 391 is formed at the other end of the slider 9 to correspond to the first retaining piece 385 of the reproduction slider 38.

On the other hand, a retaining portion 402 is formed at one end of the second switching slider 4o, and is inclined so as to face the pressing portion 672 of the right reel shaft 17.
A protruding suppressing portion 403 is formed opposite to. The suppressing portion 403 is engaged with a protrusion 602 formed on the other end of the switching drive lever 6o, which is engaged with the large-diameter gear 58 of the left reel shaft 18.

On the other hand, the bending engagement portion 401 is formed at the other end of the second switching slider 4o to correspond to the second retaining piece 386 of the reproduction slider 38, as described above.

That is, the first and second switching sliders 39, 4
0 rotates in conjunction with the pressing operation of the left and right reel shafts 18 and 17 to control the tape running system to a high speed running state, and also controls the playback slider 38 in the operating state of the auto-reverse mechanism described later. It is rotated in conjunction with the slide of the tape drive system to control the tape running system to a constant speed running state. For example, when the right reel shaft 17 is suppressed,
As shown in FIGS. 10 and 11, the small diameter gears 70 and the large diameter gears 71 of the right reel shaft 17 are slid in the axial direction together with the rotating shaft 171, and the gear 70 with the smaller diameter is attached to the gear 75. The gears are meshed with each other and can be rotated at high speed.

At this time, the suppressing portion 672 of the right reel shaft 1-7 presses the retaining portion 402 of the second switching slider 40, causing the clock to change as shown in the figure. Rotate in the direction. Here, the left reel! The switching drive lever 60 that engages with the large-diameter gear 58 of 1III8 is pressed by the suppressing portion 403 of the second switching slider 40 and rotated. For this reason, the large diameter gear 58 is slid in the axial direction by the switching drive lever 60 to release the meshing with the small diameter gear 62.

Further, as shown in FIGS. 12 and 13, when the left reel shaft 18 is suppressed, the small and large diameter gears 57.5B of the left reel shaft I8 move in the axial direction together with the rotating shaft 181. By sliding, the gear 57 with the smaller diameter meshes with the gear 61 with the larger diameter, making it possible to rotate at high speed.

At this time, the pressing portion 542 of the left reel shaft 18 presses the retaining portion 392 of the first switching slider 39 to rotate it clockwise in FIG. Here, the switching drive lever 73 that engages with the large-diameter gear 71 of the right hand wheel 1li1117 is pressed by the pressing portion 393 of the first switching slider 39 and rotated. Therefore, the gear 71 with a large diameter is connected to the switching drive lever 7.
3 in the axial direction to release the meshing with the gear 24.

Here, as shown in FIG. 14, when the playback slider 38 is slid the most in the direction of arrow (E),
The bending engagement portion 391 of the second switching slider 40 is urged by the second retaining piece 386 of the regeneration slider 38 and is rotated counterclockwise in the figure. At this time, as shown in FIG. 15, the switching drive lever 60 that engages with the large-diameter gear 58 of the left reel shaft 18 has its protrusion 602 pressed by the suppressing part 403 of the second switching slider 40. Rotated. Therefore, the large-diameter gear 58 is slid in the axial direction with respect to the rotating shaft 181 by the driving portion 601 of the switching drive lever 60, and the meshing with the small-diameter gear 62 is released. On the other hand, the first switching slider 39 has its bending engagement portion 391 connected to the first retaining piece 39 of the reproduction slider 38.
5, the large-diameter gear 71 of the right reel shaft 17 maintains a gear tooth state with the gear 74, and the right reel shaft 17 is allowed to rotate at a constant speed. .

As shown in FIG. 16, when the playback slider 38 is slid the most in the direction of arrow (F),
The first switching slider 39 is at its bending engagement portion, ? 91 is pressed by the first retaining piece 385 of the reproduction slider 38 and rotated clockwise in the figure. At this time, as shown in FIG. 9, the switching part ll1b lever 73 that engages with the large-diameter gear 71 of the right reel 1IilI117 has its protrusion 732 pressed by the suppressing part 393 of the first switching slider 39. Rotated. For this reason, the gear 71 with a large diameter is driven by the drive portion 731 of the switching drive lever 73 to
1 in the axial direction, and the meshing with the gear 74 is released. On the other hand, the second switching slider 40 is
Since the bent engagement portion 401 is not engaged with the second retaining piece 386 of the reproduction slider 38, the left reel shaft 1
The large-diameter gear 58 of No. 8 is maintained in mesh with the small-diameter gear 62, and the left reel shaft 18 is allowed to rotate at a constant speed.

Also, as shown in FIG. 4 again, the main chassis 26
A rotation shaft 268 is installed approximately in the center of the rotation shaft 268, and a lock slider 76 and a switch slider 77 are each rotatably supported on this rotation shaft 268. Of these, the lock slider 76 includes the first drive section 223 of the playback operator 22, the engagement sections 673, 543 of the cloth and left reel shaft 17, 543, and the drive section (not shown) of the stop operation First to fifth engaging portions 761 to 765, which can be respectively engaged with the retaining portions 781 formed on the number-of-times limiting slider 78, are formed to spread around the rotation shaft 269. , the switch slider 77 has substantially the same shape as the lock slider 76 and is provided overlapping the lock slider 76, and the first drive section 223 of the playback operator 22, the cloth and the left reel shaft 17.
e 18 engagement V1 673° 543, first to fifth engaging parts 771 to 7 that can engage with the drive part of the stop operator 21 and the retaining part 781 of the number of times limit slider 78;
75 forces are formed. Further, a sixth retaining portion 776 is formed at the tip of the third retaining portion 773 of the switch slider 77 to engage with a switch (not shown) for supplying electric power to the motor 29. . and,
When the switch slider 77 is rotated counterclockwise in FIG. 4, the switch canion is rotated by the sixth retaining portion of the switch slider 77, and the motor 29 is rotationally driven.

Furthermore, protruding locking pieces 766 and 777 are formed on the lock slider 76 and the switch slider 77. Spring 79.80 is attached to these protruding locking pieces 765.777 and predetermined positions of the main chassis 26.
4, the lock slider 76 and switch slider 77 are each urged to rotate clockwise in FIG. 4. Therefore, the first to fifth engaging portions 761 to 765 of the lock slider 76 and switch slider 77 and the engaging portions 771 to 7 of the first to fifth keys 1, 5
75 are the first drive unit 223 of the playback operator 22,
Right and left reel shaft Z7, 1B retaining parts 673, 543,
It is in a state where it is pressed by the drive part of the stop operator 21 and the retaining part 781 of the number limit slider 78.

In the configuration as described in item 2, when the playback operator 22 is operated to play back a tape, the above-mentioned item 15. The head chassis 35 is moved in this manner, and the recording/reproducing head 3 is brought into contact with the tape, and the right and left pinch rollers 33.
34 selectively tape right and left cag stun 2
7. Pressed to 28. At this time, the lock slider 76 and the switch slider 77 are moved by the first driving part 223 of the playback operator 22 to the first engaging part 761,771.
is pressed and rotated counterclockwise in FIG. 4 against the biasing force of springs 79 and 80. Then, the playback operation element 22 is in the suppressing operation position, and the first retaining part 761 of the lock slider 76 faces the bottom surface part of the first drive part 223. Therefore, the lock slider 76 is rotated clockwise in FIG. , the playback operator 22 is locked. At this time, the switch slider 77 has its first retaining portion 771 connected to the first driving portion 2 of the playback operator 22.
23, the switch is turned on and the motor 29 is rotated clockwise in FIG. 4 as described above.

Here, the right and left flywheels 46 and 47 are rotated counterclockwise and clockwise in conjunction with the motor 29, respectively. At this time, the slider 38 is moved by the arrow (E).
), the second switching slider 40 is rotated counterclockwise in FIG. 4 as described above.

As a result, the rotational force of the left flywheel 47 is transferred to the gear 5.
1. It is transmitted at a constant speed to the reel cap 68 through the large-diameter and small-diameter gears 61, 62, gear 74, the large-diameter gear 71 of the right reel shaft 17, and the rotating shaft 171. It is something that can be regenerated. Also playback slider 3
8 is slid in the direction of arrow (F), the first switching slider 39 is rotated clockwise in FIG. 4 as described above. As a result, the rotational force of the left flywheel 47 is transmitted to the reel character f55 at a constant speed via the gear 51, the large diameter and small diameter gears 61, 62, the large diameter gear 58 of the left reel shaft 18, and the rotating shaft 181. This is where the tape is played back in the reverse direction.

Next, set the tape fast forward υ to
Suppose that 9 is suppressed. Then, since the reel cap 68 of the right reel shaft Z7 is pressed, the locking member 67 is slid in the axial direction against the biasing force of the spring 69. The locking member 67 is moved in the axial direction until its lower end comes into contact with the flange 661 of the bearing part 66. In this state, the second retaining part 772 of the switch slider 77 is pressed by the engaging part 673 of the locking member 67, and the switch slider 77 is moved to the fourth position.
In the figure, the lock slider 7 is rotated in the counterclockwise direction.
The second retaining part 762 of 6 is the engaging part 67 of the lock part @67
3. Therefore, the switch for supplying electric power to the motor 29 is turned on, and the right reel shaft 17 is locked at the operating position. At this time, the right reel shaft 17 is
As the rotation shaft 171 is slid in the axial direction as the suppression operation is performed, the small diameter gear 70 fitted on the rotation shaft 171 slides in the same direction as the large diameter gear 71. be done. As a result, the gear 71 with the larger diameter separates from the gear 74, and the gear 70 with the smaller diameter meshes with the gear 75. In addition, as the right reel shaft 17 is suppressed, the pressing part 672 of the locking part @6'7 presses the engaging part 402 of the second switching slider 40 as described above. The second switching slide 40 is rotated counterclockwise in FIG. In this case, the second switching slider 40 has a suppressing portion 403 that engages with a protrusion 60 of the switching drive lever 60 that engages with the large-diameter gear 58 of the left reel shaft 18.
2 to rotate the switching drive lever 60. The drive portion 601 of the switching drive lever 60 slides the large diameter gear 58 in the axial direction with respect to the rotating shaft 181 and disengages the gear 62 with the small diameter. Therefore, the rotational force of the left flywheel 420 is generated by the gear 51, the large and small diameter gears 61 and 62, the gear 75, and the right reel shaft 1.
It is transmitted at high speed to the reel cap 68 via the small-diameter gear 70 and the rotating shaft 171, where Tezo fast-forwarding is performed.

It is also assumed that the rewind operator 20 is pressed to rewind the tape. Then, the reel character: 7″55 of the left reel shaft 18 is pressed, so the locking member 5
4 is slid in the axial direction against the biasing force of the streak ring 56. The locking member 54 is moved in the axial direction until its lower end comes into contact with the flange 53 of the bearing member 53. In this state, the lock member 5
The third engaging portion 543 of the switch slider 77
The locking portion 773 of the lock slider 76 is pressed and the switch slider 77 is rotated in the counterclockwise direction in FIG. engaged. Therefore, a switch for supplying electric power to the motor 29 is turned on, and the left reel shaft 18 is locked at the operating position. At this time, as the left IJ-)v axis I8 is suppressed, its rotating shaft 181 is slid in the axial direction, so that the small-diameter gear 57 fitted on the rotating shaft 181 is moved. are slid in the same direction together with the large diameter gear 58. As a result, the gear 58 with the larger diameter separates from the gear 62 with the smaller diameter, and the smaller diameter f! :
, the gear 57 meshes with the gear 61 having a large diameter. Further, as the left reel shaft 18 is suppressed, the pressing portion 542 of the locking portion 54 is pressed into the first position as described above.
By pressing the retaining portion 392 of the switching slider 39,
The first switching slider 39 is rotated clockwise in FIG. Therefore, the first switching slider 390 and its suppressing portion 393 press the protrusion 732 of the switching drive rail R-73 that engages with the large-diameter gear 71 of the right IJ) shaft 17, thereby causing the switching. The drive lever 73 is rotated. Then, the large diameter gear 71 is slid in the axial direction with respect to the rotary shaft 171 by this switching drive/<-73 drive unit 731, and the gear 74 is disengaged from the gear 74. Therefore, the left flywheel rotates 420 times. The force is transmitted at high speed to the reel cap 55 via the gear 51, the large and small diameter gears 61 and 62, the small diameter gear 57 of the left reel shaft 18, and the rotating shaft 181, where the tape rewinding operation is performed. It is done.

Now, a case will be described in which the stop operator 2Z is operated in the above-described playback, fast-forwarding, and rewinding states. That is, as described above, the stop 1+% lever 21 is installed in the cassette holder 30 so as to be pressable, and the lower end thereof can be engaged with the fourth engaging portion 764 of the lock slider 76. The driving section is formed.

In the playback, fast-forwarding, and rewinding states, each of the operators 22, 19, 20 is activated by the first drive unit 223, lock The engaging portions 673° 543 of the members 57, 54 are locked. Therefore, when the stop operator 21 is operated to suppress the locking jib 76, the fourth retaining portion 76! is pressed by the driving portion of the stop operator 21 and rotated counterclockwise in FIG. For this reason, the playback, fast forwarding and rewinding operators 22,
19 and 20 are respectively unlocked and put into a stopped state.

A tape end detection mechanism for detecting when the tape reaches the end in the above-described playback state will now be described. That is, as shown in FIGS. 4 and 17(a) and (b), a friction lever 8 is provided on the lower end surface of the gear 62 with a small diameter.
1 is provided via a well-known friction mechanism.

This friction lever 8I is configured to be biased in the rotational direction when the small diameter gear 62 is rotated. A long hole 811 is formed at the other end of the friction lever 8I. A pin 821 protruding from the tip of one end of the abbreviated detection lever 82 is loosely fitted into the elongated hole sZI. This detection lever 82 is rotatably supported by a shaft 822 protruding from the main shear 726 at a substantially central portion thereof, and the inside portion of the base at one end thereof is formed into the large-diameter gear 61. It comes into contact with the side of the cam part 611. Further, a protrusion 823 is formed at the base of one end of the detection lever 82, and this protrusion 823 can engage with the curved operating wall 612 formed on the flat surface of the large-diameter gear 61. It is said that moreover,
First and second engaging portions 824 and 825 are formed at the other end of the detection lever 82 . Of these, the first retaining portion 824 is capable of engaging with a bending engaging portion 782 formed on the number of times limiting slider 78, and the second retaining portion 824
25 is a bent engagement portion 8.25 formed on a reverse drive lever 83, which will be described later. ? It is assumed that it can be guaranteed to Z.

That is, in the above-described tape playback state, the left flywheel 47 and the gear 51 are rotated clockwise in FIG.
is rotated counterclockwise in the figure. Therefore, the friction lever 81 is urged in the same direction by the rotational force of the gear 62 with the small diameter, and the detection lever 82 is also urged in the same direction about the shaft 822. At this time, the detection lever 82 swings about the shaft 822 as the inner side of its base comes into sliding contact with the cam portion 611, so that a stable constant tape running state is maintained. For example, when the tape reaches the end in the tape constant speed running state in the forward direction, the rotation of the right reel shaft I7 is stopped, thereby causing the right reel shaft 17 to stop rotating.
The rotation of the large diameter gear 71, the gear 74, and the small diameter gear 62 is stopped. Therefore, slippage occurs between the gear 62 with the smaller diameter and the gear 61 with the larger diameter. At this time, due to the rotation of the small diameter gear 62 being stopped, the friction lever 8
1 and the detection lever 82 are no longer applied with biasing force.

On the other hand, as the large-diameter gear 6I continues to rotate, the cam portion 611 is also rotated. Therefore, as the cam portion 611 rotates, the detection lever 82 is rotated clockwise in FIG. 4 about the shaft 822 by the length of the maximum diameter of the cam portion 611, and is stopped at that position. Ru. Then, as the large diameter gear 6I rotates, the detection lever 82 is further moved clockwise in FIG. 4 because its projection 823 comes into contact with the operating wall 612 of the large diameter gear 61 and is pressed. Rotated. At this time, the first and second engaging portions 824 and 825 of the detection lever 82 actuate the number of times limit slider 7B and reverse drive lever 83, which will be described in detail later.

Furthermore, even in the tape playback state in the reverse direction, the end of the tape is reliably detected in substantially the same manner as in the above-mentioned forward tape playback state, and the explanation thereof will be omitted here.

Next, an auto-reverse mechanism for reversing the tape running direction in response to the above-mentioned tape end detection mechanism during tape playback will be described. That is, as shown again in FIG. The transmission is transmitted via the upper belt 49, and is rotated at a constant speed in the counterclockwise direction in the figure around the right cag stan 27.The gear 50 of the main shear 726 has a shaft 841 on the left side in the figure. A reverse drive gear 84 is rotatably supported on this shaft 841 so as to be able to mesh with the gear 50.
, ), the gears 5 are placed at predetermined positions facing each other.
A pair of notches 1142 and 843 that do not mesh with 0 are formed. Further, a substantially disc-shaped guide portion 844 is provided protrudingly on one side of the gear 84, and this guide portion 844 has a guide portion 844 that protrudes in the outer circumferential direction at positions facing each other corresponding to the notches 842 and 843. Engagement parts 845,846 are formed.

Furthermore, the locking portion 845 is provided on one side of the gear 84.
．． A protrusion 847 protruding in a substantially rectangular shape opposite to 846.
A cam part 85 is formed on the upper surface of the guide part 844, and the other part has a flat part 851 and the other part is curved in the shape shown in the figure. It is inserted into a substantially rectangular through hole 386 formed in the middle part of the reproduction slider FB. In this through hole 386, bending pressing portions 387° and 388 which are inclined so as to be able to engage with the maximum diameter portion of the cam portion 85 are formed opposite to each other on both sides in the figure.

Here, an idle bin 832 formed at one end of the reverse drive lever 83 is brought into contact with the guide portion 844 . The reverse drive lever 83 has an intermediate portion rotatably supported by the main shear 726, and is biased clockwise in the figure by a sedge ring (not shown). Further, the reverse drive lever 83 has the bent engagement portion 825 that can be engaged with the second engagement portion 825 of the detection lever 82 at the other end. The other end of the reverse drive lever 83 is engaged with the manual reverse operator 24, and is rotated counterclockwise in the figure in response to the operation of the manual reverse operator 24. ing.

That is, when the tape reaches its end in the tape playback state, the tape end detection mechanism detects this as described above and rotates the detection lever 82 clockwise in FIG. 4. Therefore, the second retaining portion 825 of this detection lever 82 is connected to the bending engagement portion 82 of the reverse drive lever 83.
1 to move the reverse drive lever 83 as shown in FIG.
, ) in the figure to release the locking of the locking portion 845 by the guide bin 832 . At this time, the regeneration slider 38 is moved by the spring member 38B.
, 38C (see FIG. 19) toward the intermediate position, the bending engagement portion 388 engages with the cam portion 85 of the gear 84. il- to rotate the gear 84 clockwise in the figure. Therefore, this gear 84 is
As shown in b), it is meshed with the gear 50 of the right flywheel 27 and rotated. Therefore, as shown in FIG. 18(C), the reverse drive lever 83 has its guide pin 832 in sliding contact with the guide part 844 while the other protrusion 844
8 and is locked by another locking part 846 as shown in FIG. 18(d). At this time, the cam portion 8 of the gear 84
5 is rotated in the same direction as the gear 84 rotates, and presses the bending engagement portion 387 or 388 of the regeneration slider 38 to move the regeneration slider 38' (i-arrow (F)
To move the tape in the forward or reverse direction, the playback slider 38 operates the first or second switching slider 39 or 40 as described above to switch to the forward or reverse tape running state. It is. here,
The gear 84 has one of its notches 845 and 846 opposed to the gear 50 of the right flywheel 27, and its rotation is stopped.

Further, the reverse drive lever 83 is not operated only by the detection lever 82 described above, but is operated as shown in FIG.
, ), As shown in (b), the tape is rotated counterclockwise in the figure in conjunction with the operation of the manual reverse operator 24, and the tape running direction is switched in substantially the same manner as described above. It is.

Here, the manual reverse operator 24 is, for example, a second
Even if the pressing operation is continued as shown in FIG. 0(b), the guide pin 832 of the reverse drive lever 83 is locked to the other protrusion 848 of the gear 84 after the tape running direction has been switched once. This is done so that the switching operation does not continue.

Here, as shown in FIG. 4 again, the main chassis 2
6, a shaft 783 is implanted in the lower left part of the figure. As shown in FIG. 21(a), this shaft 783 rotatably supports an intermediate portion of the number-limiting slider 78, and one end thereof projects to the side of the cassette holder 3θ to limit the number of times. Switch 87 is fs as shown in FIG.

Also, at the other end of the number limit slider 78.

A drive unit 784 is provided whose substantially central portion is rotatably supported. The drive portion 784 has the bent engagement portion 782 at one end that connects to the first engagement portion 82 of the detection lever 82.
4, and a V shape is formed at the other end so that the engaging portion 7EII can engage with the fifth engaging portion 765 of the one-piece slider 76. The number limit switch 87 is set to the arrow (G) (F).
'It can be slid in one direction. When the number of times limit switch 87 is slid in the direction of the arrow (F''), the number of times limit slider 78 is rotated clockwise in the figure as shown in FIG. The portion 782 and the engaging portion 781 are the first engaging portion 824 of the detection lever 82 and the fifth retaining portion 7 of the lock slider 76.
65 and not facing each other. Also, Figure 22 (-)
As shown in the figure, when the number limit switch 87 is slid in the direction of the arrow (movement direction), the number limit slider 78 is rotated counterclockwise in the figure, and its bent engagement portion 782 and engagement portion 781 are facing the first retaining portion 824 of the lever 82 and the fifth engaging portion 765 of the lock slider 76;
The state is set to be compatible.

That is, when the tape reaches the end in the tape playback state, the detection lever 82 is operated and rotated clockwise in the figure as described above. At this time, for example, if the number of times limit switch 87 is slid in the direction of arrow (F), the 20th
As shown in Figure (b), the bending engagement part 782 of the number limit slider 78 slightly engages and presses the first retaining part 824 of the detection lever 82, causing the drive part 784 to rotate slightly.

However, the number of times limit slider 78 is limited to its engaging portion 781.
does not face the fifth engaging portion 765 of the lock slider 76, so that the lock slider 76 is not opposed to the regeneration operator 22.
The first drive unit 223 is not rotated in the direction of unlocking. At this time, the detection lever 82
As described above, the second engaging portion 825 presses the bent engaging portion 83Zi of the reverse drive lever 83 to switch the tape running direction.

Here, when the number limit switch 78 is slid in the direction of the arrow (0), when the tape reaches the end, the tape running direction is permanently switched.

Further, it is assumed that the tape reaches the end while the number limit switch 87 is being operated in the direction of arrow (E) as shown in FIG. 21(,). Then, at this time, the number-of-times limiting slider 78 has its bent engagement portion 782 facing the second engagement portion 824 of the detection lever 82, so that
As the detection lever 82 is rotated clockwise in the figure, the bending engagement part 782 is pressed and the drive part 784 is rotated counterclockwise in the figure as shown in FIG. 22(b). . Here, the engaging portion 781 of the driving portion 784 is connected to the lock slider 76.
the lock slider 76 .
In order to rotate the playback operator 22 counterclockwise in the figure, the first drive section 223 of the playback operation element 22 is unlocked and brought into a stopped state. At this time, the second retaining portion 825 of the detection lever 82 rotates the reverse drive lever 83 counterclockwise in the whole figure in the same manner as described above, so that the tape running direction is switched as described above. This is the first thing that can be done.

Next, an explanation will be given of the external switching means that operates the auto-reverse mechanism for switching the tape running direction by remote control as described above.

That is, in FIGS. 23(a) and (b), 29
is a motor that drives the chive drive system including the above-mentioned auto-reverse mechanism etc. to a predetermined state. This motor 29 is connected at its input end to first and second movable contacts 881 and 882, respectively, of a remote switching element 88 which is operated by remote control. The first and second fixed contacts 883 and 884 of this remote switching section 88 are connected to the output end of the power supply circuit 89, respectively.

Here, the remote switching section 88 is provided, for example, in the middle part of the headphone (not shown), and when the user is enjoying chive playback using the headphone, the user performs the switching operation by remote control. motor 29
forward and reverse drive f:.

That is, when the user switches the tape running direction, the remote switching unit 88 reverses the motor 29 and operates the switching mechanism when the user performs the switching operation.
This is to switch the tape running direction.

In this case, for example, when the tape is being played in the forward direction as described above, if the remote switching section 88 is operated as shown in FIGS. 23(a) to 24(b) in order to completely switch the tape running direction. do.

Then, the motor 29 is driven in reverse and the large diameter and small diameter gears 61, 62f are shown in FIG.
The direction is reversed. As a result, the friction lever 81 is biased in the same direction by the small diameter gear 62, so the detection lever 82 is biased in the same direction about the shaft 822.

Here, as the large diameter gear 61 rotates, the detection lever 82 is moved around the shaft 822 by the length of the maximum diameter of the cam part 611, as described above, by the cam part 611 of the large diameter gear 6I. It is stopped at the position rotated clockwise in the figure. In this case, the detection lever 82 is pressed as the protrusion 823 comes into contact with the operating wall 612 of the large diameter gear 61 as the large diameter gear 61 rotates, as shown in FIG. 25(b). ), it is further rotated clockwise in the figure. As a result, the detection lever 82 operates the number-limiting slider 78 (see FIG. 4) and the reverse drive lever 83 by its first and second engaging portions 824 and 825 as described above. The tape running direction is switched so that the tape is played in the reverse direction.

Furthermore, when the remote switching section 88 switches the tape running direction in the reverse tape playback state, it can switch the tape running direction by a switching operation that is substantially the same as in the above-described forward tape playback state. For the sake of convenience, the explanation will be omitted.

In this way, in the above-mentioned cassette table recorder device, the motor 29 is reversely driven by operating the remote control section 88 provided in the middle part of the headphone etc. in a remote control manner, and the tape running direction is switched. Configured. As a result, the above-mentioned cassette tape recorder device allows the user to reliably switch the tape running direction while wearing the device on the body, thereby improving usability as much as possible. Since the power consumption is low f, K < fi, it can contribute to power saving measures.

Note that this invention is not limited to the above embodiments (it goes without saying that various modifications can be made without departing from the gist of the invention).

〔Effect of the invention〕

As described above, according to the present invention, it is possible to provide an extremely good cassette tape recorder device which has a simple configuration, can perform reliable control, and can improve usability.

[Brief explanation of the drawing]

FIG. 1(,) is a plan view showing a cassette tape recorder device according to an embodiment of the present invention, and FIG.
1%) side view, Fig. 2 is a perspective view showing the external appearance of the mechanism part, head part, and cassette holder in Fig. 1 (,), and Fig. 3 is a perspective view showing the cassette holder in Fig. 2 in an open state. , 4th
The figure is a plan view showing the structure of the mechanism part in FIG. 1 (-), FIG.
6 is a perspective view showing the operating state of FIG. 5, and FIG. 7 is a perspective view of the operating state of FIG.
8 is a sectional view showing a part of FIG. 6, FIG. 9 is a sectional view showing the mechanical part of FIG. 10 and 11 are a sectional view and a plan view, respectively, showing the fast-forward running state of the mechanical part in FIG. 1(a), and FIGS. 12 and 13 are respectively FIG.
FIGS. 14 and 15 are a sectional view and a plan view showing the mechanism section of FIG. Fig. 16 is a plan view showing the mechanism section of Fig. 1 (,) in a constant speed running state in the reverse direction, and Fig. 17 (a) and (b) are respectively the same as Fig. 1 ().
18(,) to (d) are plan views and sectional views showing the tape end detection mechanism of FIG. 1(a), respectively, and FIG. A plan view showing the tape running switching system, FIG. 20 (-) (b) is an operation explanatory diagram showing the relationship between the manual reverse operator and the reverse drive lever in FIG. 1 (a), and FIG. 21 (
IL) (b) is a plan view showing the operation of the mechanism section in Fig. 1 (→) in the reverse state, and Fig. 22 (-) (
b) is a plan view showing the operation of the mechanism section in FIG. 1(,) in an automatic stop state; FIGS. 23(a) and 23(b) are circuit configuration diagrams showing the remote switching section of FIG. 1(-), and FIGS. 24(a) and (
b) is the first state in the switching operation state of the remote switching section, respectively.
FIG. 9 is a plan view showing the operation of FIG. 9; Xl...cabinet, 12...cassette lid. 13... Tape cassette, 14... Storage section, 15.
...Mechanism storage section, 16...Head section, 17...Right reel shaft, 18...Left reel shaft, I9...Fast forward operator, 20...Rewind operator, 21...・Stop operator,
22... Playback operator, 23... Recording operator, 24.
...Manual reverse operator, 25...Window section, 26.
・・Main chassis, 27 ・Right cag stan, 28
...Left cag stan, 29...Motor, 30...
Cassette holder, 31...Recording/reproduction head, 32...Erasing head, 33...Right pinch roller, 34...Left pinch roller, 35...Head shear 7% 36...
Right pinch Leno-1362...driver, 37...μ
Pinch reno-1373... Drive section % 38... Playback slider, 39... First switching slider, 40...
Second switching slider, 4I... Regeneration drive member, 42.
... Bearing member, 43... Recording drive member, 44... Recording slider, 45... Gooley, 46... Right flywheel, 47... Left flywheel, 48... Intermediate gooley, 49 ...Belt, 50...Gear, 51...
・Gear, 53...Bearing member, 54...Lock member,
55... Reel cag, 56... Spring, 5
7.--Small diameter gear, 58..Large diameter gear, 59..
・Sgering, 60...Switching drive lever, 61...
Large diameter gear, 62... Small diameter gear, 63... Friction member, 64... Stopper, 65... Sgeling, 66...
...Bearing member, 67...Lock member, 68...Reel cag, 69...Sgeling, 70...Small diameter gear %7I...Large diameter gear, 72...Sgeling,
73...Switching drive lever, 74...Gear, 75...
- Gear, 76... Lock slider, 77... Switch slider, 78... Number of times limit slider. 79... Sgeling, 80... Spring, 8I.
... Friction lever, 82 ... Detection lever, 83 ... Reverse drive lever, 84 ... Gear, 85 ... Cam section, 87 ... Number of times limit switch, 88 ... Remote switching section, 89 ...Power circuit. Applicant's representative Patent attorney Takehiko Suzue Figure 9 Figure 10 Figure 17 (a) (b) (b) 43

Claims (1)

[Claims] a drive source that drives a first rotary body that rotates independently of tape running; and a second drive source that is engaged with the first rotary body so as to be able to transmit rotational force to the first rotary body and having a non-engaging portion in part. a rotating body; an actuating member that takes first and second positions for causing the tape recorder mechanism to run in forward and reverse directions in conjunction with a tape end detection mechanism or a manual reverse operator; and the second rotating body. a cam portion formed on the second rotating body and having first and second locking portions for controlling the actuating member in first and second positions; Rotating the second rotating body in a direction in which it engages with the rotating body of BEΣ1 by receiving the operating force of the operating member corresponding to the stop portion =
'>, i Jrihi second retaining part, said first and second
(1) A switching mechanism for switching tape running between forward and reverse directions by engagement of one rotating body, and a switching means that is remotely operated and operates the switching mechanism by reversing the drive source. A cassette tape recorder device featuring: