JPS60170052A - Cassette tape recorder device - Google Patents

Abstract

PURPOSE:To simplify the constitution and assembling work and to attain effectively miniaturization of a cassette tape recorder by providing an operating function to a reel shaft for rotary operation parts for control of sound volume, etc. CONSTITUTION:A through hole 23a is formed to a main chassis 23 at a part where a reel shaft 25 is provided. An end part of a bearing member 32 serving as an approximately cylindrical lock member is set into the hole 23a. A sound volume controller 21 is put through a hole formed to a cassette cover 13 and supported rotatably. A fitting part 21a which can be fitted to an operation shaft 33 while the cover 13 is closed is formed at a position opposite to the tip part of the shaft 33. thus a rotary operation function is provided to the shaft 25 for control of sound volume. This attains an organic constitution as well as the miniaturization of cassette tape recorder with high efficiency.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cassette tape recorder device intended for miniaturization, and particularly to improvements in the reel shaft portion.

[Technical background of the invention and its problems]

Recently, cassette tape recorders are small and lightweight, making them suitable for portability, and two-way stereo types that use headphones have become popular, allowing users to enjoy tape playback while walking, for example, while wearing headphones. It is made possible. Currently, cassette tape recorders of this type that are smaller than compact tape cassettes have already been developed. In other words, the compact tape cassette is supported and mounted from the part where the head insertion hole and pinch roller insertion hole are formed to the part where the reel hub is provided, leaving the peripheral side of the tape cassette exposed. This makes it extremely compact when no tape cassette is attached, making it more convenient to handle.

In the above-mentioned cassette table recorder, each of the pair of reel shafts can be slid in the axial direction, and when the operator provided on the cassette lid is operated, the reel shaft is operated in the axial direction to a predetermined position. By making it possible to run the tape, we aim to make it more compact.

By the way, although the f, K'J-le axis j1■ production type cassette tape recorder as mentioned above has currently achieved a size reduction of 1s2 compared to the conventional one, there are still problems in development and operation. Currently, it is being considered that the reel shaft can be effectively utilized to simplify the configuration and ease the assembly work, and to realize further miniaturization.

[Purpose of the invention]

The present invention has been made based on the above circumstances, and provides a reel shaft with an operation function for rotating operation parts, such as for volume adjustment, to facilitate the simplification of the configuration and the ease of assembling and building the boat.
It is an object of the present invention to provide an extremely good cassette tape recorder device that can effectively promote further downsizing.

[Summary of the invention]

That is, the cassette tape recorder device according to the present invention is a cassette tape recorder device that has a cassette lid that is formed in a cabinet and is provided to be openable and closable with respect to a tape cassette storage space in which a tape cassette is installed. a reel shaft that protrudes into the mr2 tape cassette storage space and includes an operating shaft that is attached to a rotating operating shaft of a rotating operating component within the cabinet so that the rotating operating shaft is rotatably supported; , the cassette iJ is characterized in that it is provided with a rotary operating member that is provided on the cassette and that engages with the operating shaft and can rotate the operating shaft when the cassette lid is closed.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. Figure 1 shows the application of this invention.
This figure shows the appearance of a small cassette tape recorder equipped with an IJ verse function.

That is, 11 in the figure is a cabinet formed in a substantially box shape, and is formed smaller than the compact tape cassette 12 (indicated by a two-dot chain line in the figure). A cassette lid 13 is supported on the upper surface of the cabinet 1 in the figure. In other words, this cassette lid 13 is formed in the shape of an abbreviated side, and one end 13m of the cassette lid 13 is connected to the cabinet l-11.
The large seal in the figure is supported so that it can rotate freely in the direction (B). The cassette Wt13 is manually rotated by the user, and is lightly locked in the open position rotated in the direction of arrow (4) in the figure, and rotated in the direction of arrow (B1) in the figure. It is designed to be securely locked in the closed position by a locking mechanism (described later).

Here, the compact tape cassette 12 is inserted between the cabinet 11 and the cassette lid 13, as shown in FIG. 1, with the cassette lid 13 closed.

In this case, the compact tape cassette 12 has the portion where the well-known head insertion hole and pinch roller insertion hole, which are not visible in the drawing, directed toward the pivot point of the cassette lid 13, and is provided with a pair of reel hubs. The cassette cover 12 is mounted so that it is supported by the cabinet 11 and the cassette lid 13.

The cassette lid 13 is also provided with a stop operator 14 at a portion corresponding to its rotational fulcrum. Playback operator 15. Recording operator 16. A manual reverse operator 17, a display section 18 indicating the tape running direction, and the like are provided. Furthermore, a window portion 19 made of, for example, a transparent acrylic plate is provided in a portion corresponding to the tape 13 window formed on the mounted compact tape cassette 12 at approximately the center of the cassette 1Q1B. , the remaining amount of tape, etc. can be visually checked with the cassette lid 13 closed.

Here, the cassette lid 13 is provided with a substantially triangular high-speed tape running operator 20 near the window 19. The high-speed tape running operator 20 is arranged to face the tip of one of a pair of reel shafts (not shown) that protrude from the approximate center of the cabinet 1 in the direction of the cassette lid 13. By pressing this high-speed tape running operator 20, one of the reel shafts is pressed in the direction of its axis, and the tape recorder mechanism (not shown) provided in the cabinet 1 is brought into a high-speed tape running state. This is what is done. However, in this case, the selection of whether to run the tape squarely at high speed (fast forward) or to run it at high speed in the opposite direction (rewind) can be done by switching with the manual reverse operation 117 described in +jtJ. is being carried out.

In addition, the cassette lid 13 is provided with one sound-reducing operator and two rotary operation operators near the window 19.

This IT adjustment phase operation element 21 is arranged to face the other four ends of the pair of reel shafts. Then, with the cassette lid 13 closed, the volume adjustment operator 2
By rotating the variable resistor 1, the operating force is transmitted to the rotary operating shaft of the variable resistor provided in the cabinet 11 via the reel shaft, and the volume is adjusted.

Furthermore, the tip of the reel shaft corresponding to the volume adjustment operator 21 is provided for locking the cassette cover 13 with the cassette lid 13 closed. An eject operator 22 is provided on the side of the cassette lid 13 to unlock the cassette lid 13 in the closed position.

Here, the above-mentioned cassette cheap recorder is not only capable of recording and playing back tapes, but also can receive radio broadcasts by using a tuner pack. Patsuku is
A tuner circuit section for receiving, tuning, detecting and amplifying radio waves is connected to the cabinet 11 and the cassette lid 13.
The compact tape cassette 12 is stored in a casing shaped so that it can be mounted between the compact tape cassette 12 and the cassette 12.
ζInstead, +l between cabinet 11 and cassette spring 13
J1 + This is what is installed.

When a desired broadcasting station is selected by operating the tuning dial provided on the tuner pack, the received radio waves are detected and filtered, and then sent to the connection 1 provided on the tuner pack and the cabinet F 1. The connection terminal provided on the iC is connected to the main amplifier circuit in the cabinet 11, and the signal is reproduced through headphones, where the radio broadcast is received.

Nao, on the back and sides of the cabinet 11 that cannot be seen in Figure 1, there is a headphone jack into which a headphone jack is inserted, a tape radio selector switch,
Sound 1t! , an Iil adjustment dial, a stereo balance adjustment dial, a switch for selecting the tape type (for example, normal tape and chrome tape, etc.), and a reverse function selection switch for selecting whether or not to perform the auto-reverse function. It is set up.

FIG. 2 shows the tape recorder mechanism section of the cassette tape recorder shown in FIG. 1. In other words, 23 in FIG. 2 is the main chassis of the tape recorder mechanism, which is housed within the cabinet 11. The pair of reel shafts 24 and 25 are rotatably supported at approximately the center of the main chassis 23, respectively. Of these, the reel shaft 24 is supported so as to be slidable in its axial direction, and is adapted to run the tape at high speed as described above. Further, the locking of the cassette lid 13 and the sound illumination adjustment described above are provided on the other reel shaft 25c.

Here, on the lower surface side of the main chassis 23, which cannot be seen in FIG. a tape drive mechanism for rotating the tape at different speeds and rotational directions; a tape running stop detection mechanism for detecting the stop of tape running; and a tape drive mechanism for switching the tape running direction in conjunction with the tape running stop detection mechanism and the manual reverse operator 17. A reverse switching mechanism and a motor 26, which serves as a power source for each of these mechanisms, are installed. In addition, the upper surface l1111 of the main chassis 23 in FIG.
A pair of capstans 27 and 28, which are part of the tape drive mechanism, are rotatably supported. These pair of capstans 27 and 28 serve as the rotation shafts of a pair of flywheels provided on the lower surface side of the main chassis 23 in FIG. 2, respectively.

A cassette holder 29 is rotatably supported at one end of the main chassis 23 in the direction of arrow (A) (81) in FIG. This cassette holder 29 has hold portions 29a and 29b formed at both ends thereof so as to define both ends of the compact tape cassette 12 between the wide ends in the thickness direction.

Furthermore, approximately at the center of the cassette holder 29, an IT reproducing head (hereinafter referred to as a recording/reproducing head) 29c and an erasing head 29d are supported. Of these, 29 recording heads
c indicates that the cassette holder 29 is marked with the arrows (C1, (D) in FIG.
Head chassis 29 supported slidably in one direction
I'm getting an ej. This head chassis 29e is
With the cassette holder 29 in the closed position, it is moved forward in the direction of arrow (C) in FIG. It is moved forward and brought into contact with the tape. Further, the erasing head 29d is moved forward in the direction of the arrow C1 in FIG. 2 in conjunction with the operation of the recording operator 16 to bring the tape into contact with the cassette holder 2g at the 131 position. .

Therefore, when recording is performed by operating both the recording operator 16 and the reproducing operator 15, both the recording/reproducing head 29c and the erasing head 29d are brought into contact with the tape.

The cassette holder 29 also includes a pinch roller 30.31 at a position 16 corresponding to the capstan 27.28.
are each rotatably supported. These pinch rollers 30, 31 are adapted to selectively move toward and away from the capstans 27 and 213 in conjunction with the switching operation of the forward/reverse switching mechanism. Further, the upper case holder 29 supports m number of stop, play, record, and manual reverse operators 14 to 17, which can be operated to suppress each other. When the cassette lid 13 is attached to the cassette boulder 29f, each of the operators 14 to 1
7 is projected to the outside and is operable. The playback and recording controls 15 and 16 are both locked to the operating section 1, and are unlocked by operating the stop control 14. Furthermore, the stop operator 14
The manual reverse slider 17 is not locked in the operating position and always returns to the 0 yuan position by 114 degrees. Further, the high-speed running operator 20, ie, the reel shaft 24, is also locked at the operating position, and the locked state is released by operating the stop operator I4.

Here, the cassette holder 29 is located at the arrow (A) in FIG.
When turned in the direction l to open, the stop, play, record, and manual reverse controls 14 to 1 are turned.
7. Recording/reproducing head 29c1 Erasing head 29d1 Head chassis 29e1 The pinch rollers 30 and 31 are moved together with the cassette holder 29.

Here, details of the front axis 25, which is a characteristic feature of this invention, will be explained. That is, in FIG. 3, a through hole 23a is formed in a portion of the RiJ main chassis 23 where the reel shaft 25 is provided. One end of a bearing member 32 serving as a locking member having a substantially cylindrical shape is implanted in the through hole 23a. In this bearing, a lock portion SZ having a taper that widens from the upper side to the lower side in the figure is formed at the tip end of the member 32 (upper part in FIG. 3).

Furthermore, an operating shaft 33 is passed through the member 32 of the bearing. The operating shaft 33 has a bearing that is rotatable relative to the member 32.

The upper end of this operating shaft 330 in the figure is a bearing member 3.
2 protrudes upward in the figure. Further, in the lower wall portion of the operation @ 33 in the figure, there is a fitting @ 33. which has a substantially U-shaped side cross section on the lower side of the main chassis 23. is formed. This joint portion 33aζ is the rotary operation shaft 3 of the variable resistor 34 for adjusting the f number as a rotary operation component.
4a is fitted. Therefore, by rotating the operation shaft 33, the rotation operation 11 of the variable resistor 34 is performed.
1134a is rotated to adjust the volume. The aJ variable resistor 4 is mounted on a printed wiring board 35ζ mounted inside the cabinet 11.

Here, the bearing is fitted with a substantially cylindrical holder 36 on the outer peripheral side of the member 32 so that the bearing can rotate freely relative to the member 32.

At the bottom of this holder 36 in the figure, there is a gear part 36 having a substantially flange shape.
m is formed. And, in this gear part 36m,
A gear 37 to which the rotational force of the motor 26 is transmitted is meshed. This motor 26 is rotated at low speed and high speed according to the operation of the playback operation element 15 and the tape high-speed running operation element 20. For this reason, when the playback operator 15 and the tape high-speed running operator 20 are operated, the rotational force of the motor 26 is transmitted to the gear section through the gear 37. 6 a
# This transmission causes the holder 36 to rotate around the member 32.

Further, a coil-shaped spring 38 is loosely fitted on the outer peripheral side of the holder 36. The lower part of the spring 38 in the figure is in contact with the gear 1fB36a). Further, a reel cap 39 that is fitted to the reel hub of the compact tape cassette 12 is fitted to the outer peripheral side of the member 32 of the bearing so that the bearing can rotate freely relative to the member 32. The lower part of the reel cap 39 in the figure is fitted onto the holder 36 so as to cover the outer peripheral side of the holder 36.

The reel cap 39 and the holder 36 are fitted together so that they can slide freely relative to each other in the vertical direction in the figure and rotate as one unit. Further, the upper portion of the spring 38 in the drawing is in contact with the lower end of the reel cap 39. For this reason, the reel cap 39 is urged upward in the figure, but when the reel cap 39 moves upward in the figure, the bearing is caused by the washer 40 visible at the top of the member 32 in the figure. In the figure, this is done until the upper end comes into contact.

On the other hand, on the inner surface of the cassette lid 13, a lock slider 4, which engages with the lock portion 32a of the member 32 with the 7 bearings, is supported so that it can slide freely in the directions of arrows (E) and (F) in the figure. . This lock slider 41 is
), and is slid in the direction of arrow (F) in conjunction with the operation of the ejector 22. Further, the volume adjustment operator 21 described in 611 is rotatably supported by being inserted through 6 holes 13b formed in the cassette 4fit1.9, and the portion of the operating shaft 33 facing the proximal portion is A fitting portion 21a is formed which can be fitted to the operating shaft 33 when the cassette counter 13 is closed.

When the cassette lid 13 is changed from the open state to the closed state, the tip of the lock slider 41 is connected to the bearing member 32.
The lock portion 32H is moved in the direction of arrow CF along the taper. Thereafter, when the cassette lid 13 is completely closed and the tip of the lock slider 41 faces the bottom surface 32b of the lock portion 32a as shown in FIG. 3, the lock slider 4 is moved by the aforementioned biasing force. The bottom surface 32bc of the locking portion 32a is locked, and the cassette lid 13 is locked in the closed position.

Furthermore, when the cassette lid 13 is in the closed state, when the ejector 22 is operated, the lock slider 41 is moved in the direction of the arrow (in the direction shown in FIG. This is when the cassette lid 13 is unlocked.

Here, when the cassette lid 13 is changed from the open state to the closed state as described above, the fitting part 21 of the tone cord adjustment operator 21
a is fitted onto the tip of the operating shaft 33. Therefore, when the volume adjustment operator 2 is rotated, the operating force is transmitted to the rotary operation shaft 34a of the variable resistor 34 via the operation shaft 33, and the rotary intermediary 1I4134a is rotated. The debt adjustment will be carried out.

In addition, when the mI record playback operator 15 and the tape high-speed running operator 20 are operated by (-1), the motor 26 is rotationally driven.
The rotational force is transmitted to the reel cap 39 through the gear 37 and the holder 36, and the reel cap 39 is rotated and the tape is run there.

Therefore, unlike the configuration of the above embodiment, the reel shaft 25 is provided with a rotation operation function for 1.1 adjustment, so the configuration is organic and miniaturization can be effectively promoted. It is something that can be done. In addition, since the reel shaft 25 is provided with a locking function, a compact cassette tape recorder of the type in which the compact tape cassette 12 is mounted with its circumferential side exposed, as shown in Fig. This is particularly effective. In other words,
A conventional cassette tape recorder has a cabinet I.
Since the compact tape cassette is completely stored and installed inside the cabinet, the locking mechanism for the cassette can be installed in the cabinet, but the small cassette tape shown in Figure 1 [/Korg's cassette lid] 13 is a major problem. Therefore, as described above, the cassette fj 1 , ? By locking the cassette lid 13, the reel shaft 26, which is used for locking the cassette lid 13, can also be used as an operator. It is.

In addition, it can be applied not only to volume adjustment, but also to the operation of various operators for sound quality, llj adjustment, and balance adjustment, and the rotary operation component is not limited to the variable resistor 34, but may also be a variable capacitor or the like. Of course.

Note that this invention is not limited to the above embodiments.
In addition, various modifications can be made without departing from the spirit of the invention.

〔Effect of the invention〕

- Therefore, as described in detail above, according to the present invention, the reel shaft is provided with an operation function for rotating operation parts, for example, for adjusting the number of sounds, thereby facilitating the simplification of the configuration and the ease of assembly work. Therefore, it is possible to provide an extremely good cassette tape recorder 4Aw that can effectively promote further downsizing.

[Brief explanation of the drawing]

Fig. 1 is an external view showing a cassette tape recorder to which the present invention is applied, Fig. 2 is an external view showing the inside of the cassette tape recorder, and Fig. 3 is a cassette cheap recorder according to the present invention. Here is a side cross section of the example. 11... Gear vignette, 12 River compact tape cassette, 13... Cassette lid, 14... Stop operator,
15... Playback operator, 16... Recording operator, 11.
...Manual reverse operator, 18...Display section, 1
9... Window section, 20... Operator for tape high-speed running, 2
- Volume adjustment operator, 22... Eject operator, 23... Main chassis, 24.25... Reel shaft, 26... Motor, 27, 211... Capstan, 29 ...Cassette holder, 30.31...Pinch roller, 32...Bearing is member, 33...Operation shaft, 34...Variable resistor, 35...Printed wiring board, 36
...Holder, 37...Gear, 38...Spring, 39...Reel cap, 40...Washer,
4. Rock slider. Applicant's agent Patent attorney Takehiko Suzue Figure 12 Button 3 Figure

Claims (1)

[Claims] In a cassette tape recorder device having a cassette unit that can be opened and closed automatically with respect to a tape cassette storage space in which a tape cassette is installed, a cabinet is formed, and a +mfi cabinet is installed protruding from the tape cassette storage space into the tape cassette storage space. a reel shaft having an operating shaft attached to a rotating operating shaft of a rotating operating component in the cabinet so that the rotating operating shaft can be rotated; and a reel shaft provided on the cassette lid to close the cassette a. 1. A cassette tape recorder device comprising: a rotary operating member that engages with the operating shaft in a state in which the operating shaft is rotated.