JPS628854B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a cassette tape recorder device intended for miniaturization.

[Technical background of the invention and its problems]

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

By the way, when a tape recorder is downsized to approximately the same size as a cassette case, what is particularly required is the ability to operate the tape recorder in various operating states such as playback, fast forward, and rewind, as well as in various operations to stop the tape recorder. The aim is to improve the shape and arrangement of the child to improve operability and ease of use. In other words, the controls of conventional compact tape recorders are small in proportion to the tape recorder body, and are concentrated in one place due to the relationship with the tape recorder mechanism. However, it is difficult to operate and is prone to malfunction. Therefore, conventionally, tape recorders themselves have been downsized to approximately the same size as a cassette case, but the shape and arrangement of the controls have been made large enough for the user to easily operate them, and for example, adjacent controls have been There is a strong desire to develop a compact tape recorder that is not only convenient to carry, but also has excellent operability and is free from malfunctions, with the intervals being wide enough to prevent accidental operation.

On the other hand, some of the above-mentioned small-sized tape recorders are not only capable of simply playing back tapes, but are also capable of receiving radio broadcasts. In other words, this is a tuner circuit that performs radio wave reception, tuning, detection, amplification, etc.
This is done by using a tuner unit (hereinafter referred to as a tuner pack) housed in a casing that has approximately the same shape as the tape cassette, and installing the tuner pack in the tape cassette storage section of a tape recorder instead of the tape cassette. It is something. There is also a strong desire to develop a compact tape recorder capable of using such a tuner pack in accordance with the above-mentioned requirements.

[Purpose of the invention]

This invention was made based on the above circumstances, and an object thereof is to provide an extremely good cassette tape recorder device that can reliably prevent malfunctions with a simple configuration and can effectively promote downsizing. do.

[Summary of the invention]

That is, the present invention provides a reel shaft that is rotatably provided in a tape cassette storage portion and can be slid freely in the axial direction, a lock mechanism that can lock or unlock the reel shaft at an operating position, and a lock mechanism that allows the reel shaft to be operated at an operating position. a tape recorder mechanism that interlocks to bring the tape into a predetermined running state, and a blade that is provided on the reel shaft and engages with a protrusion formed on a reel hub of the tape cassette to rotate the reel hub; , an inclination that divides the force with which the blade presses the protrusion by the rotational force of the reel shaft and generates a force in the return direction against the reel shaft when the rotation of the reel hub is stopped when the tape stops running; It is characterized by forming a part.

[Embodiments of the invention]

Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. FIGS. 1a and 1b show a tape recorder to which the present invention is applied, viewed from the front and side, respectively. That is,
Reference numeral 11 denotes a substantially box-shaped cabinet formed to have substantially the same size as a cassette case that accommodates a tape cassette. One flat surface of this cabinet 11 serves as a cassette lid 12 as it is.
The cassette lid 12 is supported so that the user can manually open and close it by rotating it in the directions of arrows A and B in FIG. 1B. Furthermore, the cassette lid 12 is lightly locked in both the open and closed positions to prevent it from wobbling.
Furthermore, the cassette lid 12 has a cassette holder, the details of which will be described later. This cassette holder is linked to the opening and closing operations of the cassette lid 12, and is capable of holding the tape cassette 13 shown by the two-dot chain line in FIG. 1b.

Here, the tape cassette 13 is placed inside the cabinet 11 with the cassette lid 12 closed.
There are provided a tape cassette storage section 14 that can accommodate a tape recorder mechanism section, a circuit section, a battery storage section, etc., which will be described later. Further, in the cabinet 11, a head section 16 equipped with a playback head, a pinch roller, etc., which will be described later, is provided in a portion facing the tape exposed surface of the tape cassette 13. This head portion 16 is interlocked with the opening/closing operation of the cassette lid 12 together with the cassette holder.

The tape cassette 13 is stored in the tape cassette storage section 14 as shown in FIG.
A pair of reel shafts 17 and 18 that fit into a pair of reel hubs (not shown) are supported, respectively.
The cassette lid 12 is also designed to include rotating shafts 171, 181 of the reel shafts 17, 18 at positions corresponding to the reel shafts 17, 18 on the tape winding side during fast forwarding and rewinding. child 19
and a rewind operator 20 are provided, respectively. These fast forward and rewind operators 19, 20
As will be described later, the rotation shaft 17 of the reel shafts 17 and 18
1,181 in the direction of its axis.

Further, the cassette lid 12 has a position corresponding to the head portion 16, that is, a position corresponding to the tape cassette 1.
The playback operator 21 is located at a position that does not face the flat surface of 3.
A stop operator 22 is installed substantially perpendicularly to the surface of the cassette lid 12 so as to be pressable. moreover,
A window portion 23 is provided approximately at the center of the cassette lid 12. The window portion 23 is formed of, for example, a transparent acrylic plate, and is arranged so as to overlap at least a portion of a well-known tape see-through window formed on the flat surface of the tape cassette 13. That is, the right end portion of the window portion 23 in FIG. ing. In addition, in terms of visually checking the tape running state from the outside, the fast forward and rewind controls 1
9 and 20 may be made of a transparent material.

Here, in the cassette lid 12, between the fast forward and rewind operators 19 and 20 and the play and stop operators 21 and 22, there is a tapered tape that widens outward from the tape cassette storage section 14 side. A long hole 121 is formed. This long hole 12
1, when receiving radio using tuner pack,
This is to enable channel selection operations to be performed with the cassette lid 12 closed. That is, this tape recorder is not only capable of simply reproducing tapes, but also can receive radio broadcasts by using a tuner pack. This uses a tuner pack in which a tuner circuit for receiving, tuning, detecting, and amplifying radio waves is housed in a casing that has approximately the same shape as the tape cassette. This is done by installing the cassette into the cassette storage section 14. Then, when a desired broadcasting station is selected by operating the tuning dial provided on the tuner pack, the received radio waves are detected and amplified, and then introduced into the main amplifier circuit in the tape recorder via the connection terminal. The radio broadcast is then played back on the headphone, and the radio broadcast is received here. At this time, cassette lid 1
2 is closed, the channel selection dial is set to slot 12.
1, and the channel selection operation can be performed without opening the cassette lid 12.

Further, on the side surface of the cabinet 11, there are provided a volume adjustment dial, a tape type (normal, chrome, metal, etc.) switch, a headphone jack, etc. (not shown).

Here, FIG. 2 shows the cassette lid 12 taken out from the cabinet 11. That is, the cassette lid 12 has through holes 122, 12 through which the playback operation element 21 and the stop operation element 22 are inserted.
3 are formed respectively. As shown in FIG. 3, the cassette lid 12 is formed with four side portions 124 to 127, which form part of the side surfaces of the cabinet 11. The fast forward and rewind operators 19 and 20 are substantially rectangular plates, and are installed so as to close substantially rectangular through holes formed in the cassette lid 12, which are not visible in FIG. Here, as shown in FIG. 3, a pair of bearing portions 191, 192 and 201, 202 are formed at one end of the back side of the fast forward and rewind operators 19, 20, respectively.

Further, on the back side of the cassette lid 12, bearing parts 193, 194, and 19 are provided at positions that sandwich the bearing parts 191, 192 of the fast-forwarding operator 19, respectively.
5,196 are formed. Furthermore, bearing parts 203, 204 and 205, 206 are formed on the back side of the cassette lid 12 at positions that sandwich the bearing parts 201, 202 of the rewind operator 20, respectively. And each of the above-mentioned bearing parts 191 to 1
96 and 201 to 206 are arranged on the same line, and through holes 128 and 129 are respectively formed in side parts 125 and 127 of the cassette lid 12 corresponding to both ends of the row.

Here, as shown by the dotted line in FIG. 3, the support shaft 24 is inserted from the outside into the through hole 128 of the side part 125 of the cassette lid 12. And this support shaft 24
The fast forward and rewind operators 19 and 20 are supported by the cassette lid 12 by passing through each of the bearing portions 191 to 196 and 201 to 206. At this time, both ends of the support shaft 24 are supported by bearing portions 197 and 207 formed on the back side of the cassette lid 12. Further, the fast forward and rewind operators 19 and 20 are
The substantially central portion of the back side is pressed by the other end portion of the leaf springs 198, 208, one end of which is supported by the support shaft 24, so that the cassette lid 12 is directed outward with the support lid 24 as the center. Previously biased to rotate, this rotation is caused by the edges of the fast forward and rewind controls 19, 20 and the fast forward and rewind controls 1.
The fast forward and rewind operator 1 is engaged with the engaging parts (not shown) formed at the peripheral edge of the through hole of the cassette lid 12 through which the fast forward and rewind operators 9 and 20 are inserted.
9 and 20 are held in the positions shown in FIG.

For this reason, the fast forward and rewind operator 19,
Reference numeral 20 is a device that can be pressed downward in FIG.
The back surfaces of the reel shafts 9 and 20 can press the rotating shafts 171 and 181 of the reel shafts 17 and 18, respectively, in the axial direction.

Here, FIG. 4 shows the overall appearance of the tape recorder mechanism section, head section 16, cassette holder, etc. installed in the mechanism storage section 15. That is, 25 in FIG. 4 is the main chassis of the tape recorder mechanism, which is connected to the reel shaft 1 mentioned above.
7 and 18 are supported rotatably and slidably in the axial direction. In addition, the main chassis 25
A capstan 26 which is a rotating shaft of a flywheel to be described later, the reel shafts 17 and 18, a motor 27 for rotationally driving the capstan 26, and the like are supported, respectively. Further, at one end of the main chassis 25, there are arrows A in FIG.
A cassette holder 28 is supported rotatably in the B direction. This cassette holder 28 has
Hold parts 2 are attached to both ends of the tape cassette (not shown) so as to sandwich both ends in the width direction of the tape cassette in the thickness direction.
81,282 are formed. Further, approximately in the center of the cassette holder 28 is a playback head 29.
A pinch roller 30 that can move toward and away from the capstan 26 is supported, respectively. Furthermore, the cassette holder 28 supports the playback and stop operators 21 and 22, respectively.

The cassette lid 12 is mounted by placing it over the cassette holder 28. At this time, the playback and stop controls 21 and 22 are inserted into the through holes 122 and 123 (the second one) formed in the cassette lid 12.
(see figure) for external operation. Here, when the cassette lid 12 is opened, the cassette holder 28 is rotated in the direction of arrow A in FIG.
The state shown in the figure is achieved. At this time, the playback/stop operators 21, 22, playback head 29, and pinch roller 30 are moved together with the cassette holder 28.

Next, detailed configurations of the tape recorder mechanism section and head section 16 will be explained. That is,
In FIG. 6, a playback operator 21 is located at the bottom of the main chassis 25, as shown by a two-dot chain line, and is supported by a cassette holder 28, which is not shown in FIG. And this main chassis 25
A head chassis 31 is supported by a cassette holder 28 and located on the right side of the playback operator 21 in the figure. This head chassis 31 has a rotating shaft 311 provided at the right end in the figure that is loosely fitted into the cassette holder 28, so that
It is rotatably supported in the directions of arrows C and D in FIG. Further, the reproduction head 29 is attached to the left end of the head chassis 31 in the drawing.
Furthermore, a pinch lever 3 is attached to the rotation shaft 311.
01 is rotatably supported. The pinch roller 30 is rotatably supported at the other end of the pinch lever 301.

Here, the head chassis 31 has a torsion spring (not shown) that has one end locked to one side of the head chassis 31 and the other end wrapped around the rotation shaft 311 and locked to the cassette holder 28. As a result, it is urged to rotate in the direction of arrow D in FIG. 6 about the rotation shaft 311. Further, the pinch lever 301 is rotated about a rotation shaft 311 in the direction of arrow C in the figure by a coil spring (not shown) being engaged between the pinch lever 301 and the head chassis 31. Forced. Here, the rotating shaft 302 of the pinch roller 30 extends so as to be loosely fitted into a long hole 312 formed in the head chassis 31.
Therefore, the pinch lever 301 is rotated by the spring in the direction of arrow C in the figure until the rotating shaft 302 comes into contact with the upper end of the elongated hole 312 in the figure.

Further, as shown in FIG. 7, at the lower left end of the head chassis 31 in FIG.
2 is engaged with an engaging portion 321 extending from one end thereof. This regeneration drive member 32 has a through hole 32 formed in a mounting portion 322 extending to the other end.
A rotating shaft (not shown) protruding from the main chassis 25 is fitted into the main chassis 25, so that the main chassis 25 is rotatably supported in the directions of arrows E and F in the figure. The playback operator 21 is supported by the cassette holder 28 above the base end portion 324 of the playback drive member 32 in the drawing so as to be slidable vertically in the drawing. However, the playback operator 21 is the seventh
The slide in the upper part of the figure is supported by a cassette holder 28 in a manner that prevents it from coming off.

An operating shaft 211 extends downward in the figure from the lower surface of the playback operator 21 in FIG. The bottom surface of section 212 is attached. The top of this first drive section 212 is connected via a shaft 213 to the top of a second drive section 214 having a substantially conical shape. Then, this second drive section 21
4 is the base end portion 32 of the regeneration drive member 32.
It is facing 4.

Therefore, the rotation of the head chassis 31 by the torsion spring in the direction of arrow D in FIG. 32 rotates in the direction of arrow E in FIG.
The base end portion 324 presses against the bottom surface of the second drive portion 214 to reach a position where it is prevented from coming off when the playback operator 21 is slid upward in the figure.

Now, suppose that the playback operator 21 is pressed downward in the figure as shown in FIG. Then,
The bottom surface of the second drive portion 214 presses the base end portion 324 of the regeneration drive member 32, and the regeneration drive member 32 is rotated in the direction of arrow F in FIG. Therefore, the engaging portion 321 of the regeneration drive member 32 is connected to the head chassis 3.
1 is pressed against the biasing force of the torsion spring, thereby rotating the head chassis 31 in the direction of arrow C in FIG. At this time, the reproducing head 29 comes into contact with a tape (not shown) of the tape cassette, and the pinch roller 30 is pressed against the capstan 26 through the tape. Here, when the pinch roller 30 is pressed against the capstan 26, the pinch lever 301 resists the biasing force of the spring that biases the pinch lever 301 to rotate in the direction of arrow C in FIG. Since the positional relationship is set so that it is pushed back in the direction of arrow D in FIG. 6 about the rotation shaft 311, it is eventually pressed against the capstan 26 by the biasing force of the spring. Further, the playback operator 21 is locked at the pressing operation position shown in FIG. 8, and the locking mechanism will be described later.

Here, as shown in FIG. 6 again, the motor 2 is located at the upper right of the main chassis 25 in the figure.
7 is installed. A small-diameter pulley 272 is fitted onto the rotating shaft 271 of the motor 27. Further, the flywheel 33 is rotatably supported at the lower right part of the main chassis 25 in the figure, and the flywheel 33 and the pulley 2
72 is connected via the belt 34 so that rotational force can be transmitted. And the above flywheel 3
The rotating shaft of No. 3 is the capstan 26. Further, the flywheel 33 includes a ninth
As shown in the figure, a gear 35 with a small diameter is provided coaxially.

On the other hand, among the pair of reel shafts 17 and 18 provided approximately at the center of the main chassis 25, the reel shaft 17 that is on the winding side during fast forwarding is
It is supported by the main chassis 25 as shown in FIG. That is, the main chassis 25 has a through hole 251 in the part where the reel shaft 17 is attached.
is formed. A bearing member 36 having a substantially cylindrical shape and having a flange portion 361 with a larger diameter than the through hole 251 is inserted into the through hole 251 at the lower part of the figure. and are fixed by screws 362, 362. A rotating shaft 171 of the reel shaft 17 is rotatably inserted into this bearing member 36.

Here, the portion of the rotating shaft 171 that protrudes upward in the drawing from the bearing member 36 is inserted into the through hole 371 formed at the bottom of the lock member 37, which is formed in the shape of a cylinder with a bottom, and then inserted into the reel cap. 38 is fitted. Although the reel cap 38 is rotated integrally with the rotating shaft 171, the locking member 37 is independent of the rotating shaft 171. A coiled spring 39 is interposed between the upper end of the bearing member 36 in the drawing and the bottom of the locking member 37.
The rotary shaft 171 is urged upward in the figure through the reel cap 38 and the reel cap 38. Further, at the lower end of the locking member 37 in the figure, a collar-shaped locking part 37 having a tapered part 372 extending from the bottom to the top in the figure is provided.
3 is formed. This locking portion 373 is formed to have a smaller diameter than the through hole 251 of the main chassis 25.

Further, the portion of the rotating shaft 171 that protrudes downward in the drawing from the bearing member 36 has a slightly smaller diameter via a stepped portion 172, and the smaller diameter portion has a smaller diameter gear 40 and a larger diameter portion. Gears 41 are fitted respectively. These gears 40 and 41 rotate integrally with the rotating shaft 171. Of these, the gear 40 is fixed to the rotating shaft 171, but the gear 41 is provided so as to be slidable in the axial direction of the rotating shaft 171. There is. Further, the gear 41 is connected to the rotating shaft 1
A coiled spring 412 is interposed between the washer 411 attached to the lower end of the gear 41 in the figure, and the gear 41 is biased upward in the figure. The movement of the gear 41
until it comes into contact with the gear 40.

Here, in the main chassis 25, a shaft 252 is installed approximately in the center between the reel shaft 17 and the flywheel 33. A large-diameter gear 42 and a small-diameter gear 43 are rotatably supported on this shaft 252 from above in FIG. 9, respectively.
A substantially ring-shaped friction member 44 is interposed between the gears 42 and 43. Further, a stop 45 having a substantially cylindrical shape and having a flange 451 at the bottom end in the figure is fitted into the lower part of the shaft 252 in the figure, and a coil provided on the flange 451 of the stop 45 is fitted. The gear 4 is
3 presses the gear 42 via a friction member 44. For this reason, the gears 42 and 43 are in an interlocking relationship. The gear 42 is meshed with the gear 35 of the flywheel 33, and the gear 42 is meshed with the gear 35 of the flywheel 33.
is meshed with the gear 41 of the reel shaft 17. At this time, the gear 42 is in a position where it meshes with the gear 40 of the reel shaft 17, but as is clear from FIG. 9, the gears 42 and 40 are not meshed because they are shifted vertically in the figure.

On the other hand, among the pair of reel shafts 17 and 18,
The reel shaft 18 which becomes the winding side during rewinding is the first
As shown in FIG. 0, it is supported by the main chassis 25. That is, the main chassis 25 has a through hole 253 in the part where the reel shaft 18 is attached.
is formed. A bearing member 46 having a substantially cylindrical shape and having a mounting portion 461 extending to the peripheral edge of the through hole 253 at the lower part of the figure is inserted into the through hole 253, and the peripheral edge of the through hole 253 and the mounting portion 461 are not shown. It is fixed with screws etc. and,
A rotary shaft 181 is rotatably inserted into this bearing member 46 .

Here, the portion of the rotating shaft 181 that protrudes upward in the figure from the bearing member 46 is inserted into the through hole 471 formed at the bottom of the lock member 47, which is formed in the shape of a cylinder with a bottom, and then inserted into the reel cap. 48 is fitted. Although the reel cap 48 is rotated integrally with the rotating shaft 181, the locking member 47 is independent of the rotating shaft 181. A coiled spring 49 is interposed between the upper end of the bearing member 46 in the drawing and the bottom of the locking member 47.
The rotating shaft 181 is urged upward in the figure via the reel cap 48. Further, at the lower end of the locking member 47 in the figure, a collar-shaped locking part 47 having a tapered part 472 extending from the bottom to the top in the figure is provided.
3 is formed. This locking portion 473 is formed to have a smaller diameter than the through hole 253 of the main chassis 25.

In addition, a gear 50 with a small diameter is provided at a portion of the rotating shaft 181 that protrudes downward in the figure from the bearing member 46.
is fitted. This gear 50 has a rotating shaft 181
It rotates integrally with the

Here, in the main chassis 25, a shaft 2 is located approximately at the center of the reel shaft 18 and the shaft 252.
54 have been planted. A substantially cylindrical mounting member 51 is rotatably attached to this shaft 254.
It is slidably inserted in the axial direction, that is, in the vertical direction in the figure. A rewinding lever 52 and a gear 53 are fitted onto the mounting member 51. Further, a washer 51 is attached to the lower end of the mounting member 51 in the figure and to the lower end of the shaft 254 in the figure.
A coiled spring 512 is interposed between the mounting member 51 and the mounting member 51, so that the mounting member 51 is biased upward in the figure, and in this state, the gear 53 is meshed with the gear 50 of the reel shaft 18. . At this time,
The gear 53 is in a position where it meshes with the gear 42, but as is clear from FIG.
They are not engaged because they are shifted vertically in the figure.

Further, the rewinding lever 52 is a plate-shaped body,
At one end thereof, there is a meshing part of the gears 53 and 50,
A connecting portion 521 is formed between the reel shaft 18 and the lower end of the locking member 47 in the figure, and is inserted through the through hole 253 of the main chassis 25. Furthermore, the other end of the rewinding lever 52 extends to the reel shaft 17 side, and the tip in the extending direction engages with the flat surface of the gear 41 of the reel shaft 17 from above in the figure. An engaging portion 522 is formed.

Here, as shown again in FIG. 6, a rotation shaft 255 is installed approximately in the center of the main chassis 25. A lock lever 54 and a switch lever 55 are rotatably supported on this rotation shaft 255, respectively. That is, as shown in FIGS. 7, 9, and 10, the lock lever 54 has a tapered portion 215 of the first driving portion 212 of the playback operator 21 and a tapered portion of the locking member 37 of the reel shaft 17. 372 and the tapered portion 472 of the locking member 47 of the reel shaft 18, first to third engaging portions 541 to 543, respectively,
It is formed so as to extend in three directions with the rotation axis 255 as the center. Further, the switch lever 55 has substantially the same shape as the lock lever 54, and is provided to overlap the lock lever 54, and includes the playback operator 21, reel shafts 17, 18,
First to third engaging portions 551 to 55 that can engage with each of the tapered portions 215, 372, and 472, respectively.
3 is formed so as to extend in three directions centering on the rotation axis 255. moreover,
A fourth engaging portion 554 that engages with the leaf switch 56 for supplying power to the motor 27 is formed at the tip of the third engaging portion 553 of the switch lever 55 . When the switch lever 55 is rotated counterclockwise in FIG. 6, the leaf switch 56 is turned on by being pressed by the fourth engaging portion 554, and the motor 27 is rotationally driven. . In addition, the above switch lever 5
A protruding engagement piece 555 is formed on one side of the third engagement portion 553 of No. 5. A coiled spring 556 is engaged with this protruding engagement piece 555 and a predetermined position of the main chassis 25, so that the switch lever 55 is urged to rotate clockwise in FIG. Therefore, the first to third engaging portions 551 to 553 of the switch lever 55
are pressed by each tapered portion 215, 372, 472.

On the other hand, the third engaging portion 5 of the lock lever 54
A protruding engagement piece 544 is also formed on one side of 43. A coiled spring 545 is engaged with this protruding engagement piece 544 and a predetermined position of the main chassis 25, so that the lock lever 5
4 is biased to rotate clockwise in FIG. Therefore, the first to third engaging portions 541 to 534 of the lock lever 54 are connected to each tapered portion 215, 37.
2,472. Further, shafts 571 and 572 are installed in the main chassis 25 in the vicinity of the reel shafts 17 and 18, respectively. These shafts 571, 572 are connected to a stop slider 5 provided horizontally in FIG. 6 between the two reel shafts 17, 18.
In the long holes 573 and 574 formed at both ends of 7,
Each is loosely fitted. For this reason, the stop slider 57 is made slidable in the left and right directions in FIG. Then, the stop slider 5
A protruding engagement piece 575 is formed on one side of 7.

Here, in the main chassis 25, a shaft 576 is protruded from the upper part of the protruding engagement piece 575 of the stop slider 57 in FIG. and,
The stop slider 57 has a torsion spring 577 whose substantially central portion is wound around the shaft 576 and fixed to the shaft 576. Both ends of the torsion spring 577 sandwich both sides of the protruding engagement piece 575, so that It is held so that it returns to the neutral position even if it is slid in either the left or right direction in Figure 6. Further, in this neutral position, the protrusion 578 formed at one end of the stop slider 57 is located near the tapered portion 372 of the locking member 37 of the reel shaft 17. moreover,
A protrusion 579 formed at the other end of the stop slider 57 is located near the tapered portion 472 of the locking member 47 of the reel shaft 18.

In the above-described configuration, it is assumed that the playback operator 21 is operated to play back a tape. Then, as previously explained in FIGS. 6 and 7, the head chassis 31 is moved, the reproducing head 29 is brought into contact with the tape, and the pinch roller 30 is pressed against the capstan 26 through the tape. At this time, when the playback operator 21 is pressed downward in FIG. , 551 is pressed. Therefore, the lock lever 54 and the switch lever 55 are rotated counterclockwise in FIG. 6 against the urging force of the springs 545 and 556. Then, when the playback operator 21 is pressed to the position shown in FIG.
It comes to face the bottom part of No. 12. For this reason,
The lock lever 54 is rotated clockwise in FIG. 6 by the biasing force of a spring 545, and its first engaging portion 541 engages with the bottom surface of the first drive portion 212, and the regeneration operator 21 is moved to the operating position. It is locked. At this time, the switch lever 55 is pressed by the tapered portion 215, and its first engaging portion 551 remains pressed by the first driving portion 212. For this reason, the switch lever 55
The fourth engaging portion 554 turns on the leaf switch 56, and the motor 27 is driven to rotate counterclockwise in FIG.

Then, the flywheel 33 is rotated in the same direction, and the rotational force is applied to the gears 35, 42 and the friction member 4.
4, is transmitted to the reel cap 38 via the gears 43, 40 and the rotating shaft 171, and is transmitted to the reel cap 38.
8 is rotated counterclockwise in FIG. 6, and the tape is played back.

Next, it is assumed that the tape fast forward is turned off and the fast forward operator 19 is pressed as shown in FIG. Then, the reel cap 38 of the reel shaft 17 is pressed downward in the figure, and the lock member 37 is accordingly slid downward in the figure against the biasing force of the spring 39. This lock member 3
7 is moved downward in the figure until its lower end in the figure abuts against the flange 361 of the bearing member 36. In this state, the second engaging portion 552 of the switch lever 55 is pressed by the tapered portion 372 of the locking member 37, and the switch lever 55 is rotated counterclockwise in FIG. , the second engaging portion 542 of the lock lever 54 is engaged with the engaging portion 373 of the locking member 37. Therefore, the leaf switch 56 is turned on and the reel shaft 17 is locked at the pressed position. At this time, as the reel shaft 17 is pressed, the rotation shaft 171 also moves downward in the figure, and the gear 40 fitted on the rotation shaft 171,
41 is also moved in the same direction. Therefore, the gear 41 separates from the gear 43, and the gear 40 comes to mesh with the gear 42. Therefore, flywheel 3
The rotational force in the counterclockwise direction in FIG. 6 of 3 is generated by gears 35,
42, 40 and the rotating shaft 171 to the reel cap 38, and the reel cap 38
The tape is rotated counterclockwise at high speed in the figure, and fast-forwarding of the tape is performed here.

It is also assumed that the rewind operator 20 is pressed to rewind the tape. Then, as shown in FIG. 12, the reel cap 48 of the reel shaft 18 is pressed downward in the figure, and the lock member 47 is accordingly slid downward in the figure against the biasing force of the spring 49. This lock member 47
is moved downward in the figure until its lower end in the figure abuts against the mounting portion 461 of the bearing member 46. In this state, the taper portion 472 of the locking member 47 causes the switch lever 55 to be locked in the third position.
The engaging portion 553 of the switch lever 5 is pressed.
5 is rotated counterclockwise in FIG.
The third engagement portion 543 of the lock lever 54 is engaged with the engagement portion 473 of the lock member 47. Therefore, the leaf switch 56 is turned on and the reel shaft 18 is locked at the pressed position. At this time, the lower end of the locking member 47 in the figure presses the connecting portion 521 of the rewind lever 52 downward in the figure, so that the entire rewind lever 52 is slid downward in the figure. Therefore, the gears 50 and 53 are slid downward in the figure while being meshed, and at this time, the gear 53 is meshed with the gear 42.
Furthermore, the engaging portion 522 of the rewinding lever 52 causes the gear 41 to slide downward in the figure against the biasing force of the spring 412, so that the gear 41 is disengaged from the gear 43. Therefore, the rotational force of the flywheel 33 in the counterclockwise direction in FIG.
5, 42, 53, 50 and the rotating shaft 181, the reel cap 48 is rotated at high speed clockwise in FIG. 6, and the tape is rewinded.

Next, a case will be described in which the stop operator 22 is operated in the playback, fast-forwarding, and rewinding states.
That is, as described above, this stop operation element 22 is supported by the cassette holder 28 so as to be slidable in the vertical direction in FIG. 13. However, the stop operation element 22 is supported by a cassette holder 28 so as to be prevented from coming off from the upper slide in FIG.

From the bottom surface of the stop operator 22 in FIG. 13, an operating shaft 221 extends vertically in the drawing. , is attached to the bottom surface of the substantially conical drive section 223. here,
The first engaging portion 541 of the lock lever 54 is
The tapered portion 224 of the driving portion 223 is also pressed against the urging force of a spring 545 (see FIG. 6). The stop operator 22 is operated by a spring 2.
13 to the position where it is prevented from coming off by 22.
It is biased upward in the figure. Therefore, the stop operator 22 is moved to the first position against the biasing force of the spring 222.
When pressed downward in Figure 3, the tapered portion 22
4 to the first engaging portion 54 of the lock lever 54.
1 is moved in the direction of the arrow in FIG. In other words,
The lock lever 54 is rotated counterclockwise in FIG.

Here, in the playback, fast-forwarding, and rewinding states, as described above, either the first drive section 212 or the locking members 37, 47 locks the lock lever 54.
The corresponding first to third engaging portions 541 to 54
Locked by 3. Therefore, no matter which of the three operating states the tape recorder is in, by operating the stop operator 21 and rotating the lock lever 54 in the counterclockwise direction in FIG. Eventually, the lock will be released and the system will come to a halt.

Here, the stop operator 22 is the thirteenth
When pressed downward in the figure, the operating stroke is limited to a shallow position where the first engaging portion 541 of the lock lever 54 is not stopped by the drive section 223, and the stop operating element 22 is at the operating position. This is to prevent it from being locked.

The tape recorder described in this embodiment is equipped with an automatic stop mechanism that automatically stops the tape when it reaches the end during playback. That is, referring to FIGS. 6 and 9, one end of a friction lever 58 is provided at the lower part of the gear 43 in FIG. 9 via a well-known friction mechanism. This friction lever 58 is biased in the direction of rotation of the gear 43 when it is rotated. A long hole 581 is formed at the other end of the friction lever 58.
A pin 5 protrudes from one end of the detection lever 59 inside.
91 is loosely fitted. Suppose that it is locked at this detection position. Then, the locking member 4 of the reel shaft 18
Since the taper portion 472 of No. 7 presses the protrusion 579 of the stop slider 57, the stop slider 57
is slid to the right in FIG. 14b against the biasing force of the torsion spring 577. At this time, the protruding piece 572 of the stop slider 57 is in a position where it substantially contacts the bearing member 36 of the reel shaft 17, and the protruding piece 578 is in contact with the flange part 36 of the bearing member 36.
1 and the locking portion 373 of the locking member 37.

Therefore, even if the fast-forward operator 19 is not operated in the rewinding state shown in FIG. , it is prevented from being pushed into the normal pushing position, that is, the position where it is locked by the second engaging portion 552 of the lock lever 54. Also, contrary to the above, reel shaft 1
In the fast-forward state in which the disc 7 is locked by the lock lever 54 at the normal push-in position, it performs a rocking motion about the station shaft 592, and a stable reproduction state continues. When the tape reaches the end in such a playing state, the rotation of the reel shaft 17 is stopped, and
As a result, the rotation of the gears 41 and 43 is stopped. At this time, there is slippage between the gears 42 and 43. By stopping the rotation of the gear 43, no biasing force is applied to the friction lever 58 and the detection lever 59. On the other hand, since the gear 42 continues to rotate, the cam portion 421 is also rotating, and the detection lever 59 is rotated counterclockwise in FIG. 6 about the shaft 592 by the length of the maximum diameter of the cam portion 59. , will be stopped at that position. Then, gear 42
Due to the rotation of the actuating wall 422, the outer portion of the actuating wall 422 comes into contact with the pin 594 of the detection lever 59, and the actuating wall 4
The pin 594 and, in turn, the detection lever 59 are further rotated counterclockwise in FIG. 6 from the above-mentioned stop position along the curved shape of the pin 594. At this time, the pin 593 of the detection lever 59 comes into contact with the second engaging portion 542 of the lock lever 54, and the lock lever 54 is moved to the sixth position.
Rotate counterclockwise in the figure. Therefore, the lock at the operating position of the playback operator 21 is released, and an automatic stop is performed at this point.

Here, the function of the stop slider 57 will be explained. That is, in FIG. 14a,
As mentioned above, the stop slider 57 is supported by the main chassis 25 so as to be able to slide freely in the direction of the arrow in the figure, and is usually moved to the neutral position as shown in FIG. 14a by the torsion spring 577 shown in FIG. It is held in place. When the stop slider 57 is in its neutral position, the projections 578 and 579 formed at both ends are
The taper portions 372, 472 of the respective locking members 37, 47 of the reel shafts 17, 18 are located at the lower part in FIG. 14a.

In this state, as shown in Figure 14b,
For example, by operating the rewind operator 20, the reel shaft 18
It is assumed that the lock lever 54 is pushed downward in the figure and is locked at the pushed-in position by the third engaging portion 543 of the lock lever 54 as described above. Then, the tapered portion 472 of the locking member 47 of the reel shaft 18 presses the protrusion 579 of the stop slider 57, so the stop slider 57 resists the biasing force of the torsion spring 577 and moves to the right in FIG. 14b. be slid in the direction. At this time, the protrusion 57 of the stop slider 57
2 is located at a position substantially in contact with the bearing member 36 of the reel shaft 17, and the projecting piece 578 is interposed between the flange portion 361 of the bearing member 36 and the locking portion 373 of the lock member 37.

Therefore, even if the fast-forward operator 19 is not operated in the rewinding state shown in FIG. , it is prevented from being pushed into the normal pushing position, that is, the position where it is locked by the second engaging portion 552 of the lock lever 54. Also, contrary to the above, reel shaft 1
7 is locked by the lock lever 54 at the normal push-in position, the projection 572 of the stop slider 57 touches the tapered portion 3 of the lock member 37.
72, the stop slider 57 is slid to the left in FIG. 14a against the biasing force of the torsion spring 577. At this time, the protrusion 57 of the stop slider 57
9 is a mounting portion 4 of the bearing member 46 of the reel shaft 18;
61 and the locking portion 473 of the locking member 47. Therefore, even if the rewind operator 20 is not operated in the fast-forward state, the reel shaft 1
The locking portion 473 of the lock member 47 of No. 8 comes into contact with the protrusion 579 of the stop slider 57, and is prevented from being pushed into the normal pushing position.

In addition, the above-mentioned fast forward and rewind operators 19, 20
If you try to operate both reel shafts 17 and 17 at the same time,
18 will be pushed in, but in order to ensure that the tapered portions 372, 472 of each lock member 37, 47 clamp the stop slider 57 at this time,
Both reel shafts 17 and 18 are designed so that they do not reach exactly the normal pushing position.

That is, only one of the reel shafts 17, 18 is selectively locked at the push-in position, and in short, both the fast-forward and rewind operators 19, 20 are prevented from being pushed.

Therefore, according to the tape recorder configured as described above, first, the fast forward and rewind operators 19,
20 on the cassette lid 12
4 is inserted into the inside of the cassette lid 12 by inserting it through a through hole 128 formed in the side 125 of the cassette lid 12, as shown in FIG. 3, making the assembly work extremely easy. be. That is, when attempting to attach the support shaft 24 to the cassette lid 12 in the form shown in FIG.
7 and 201 to 207 are obviously considerably complicated, and the assembly work becomes difficult accordingly.

On the other hand, since the cassette lid 12 is intended to be miniaturized, it must be sized so that the tape cassette 13 can fit therein almost exactly, so a support mechanism for attaching the fast forward and rewind operators 19 and 20 is required. The space provided is extremely small. In other words, it requires a support mechanism with a good space factor that can be realized in an extremely narrow space.

Therefore, as shown in FIG. 3, by forming a through hole 128 in the side part 125 of the cassette lid 12 and introducing the support shaft 24 into the cassette lid 12 through the through hole 128, each bearing part 191 to 197 and 2
01 to 207 only need to be provided with a through hole through which the support shaft 24 is inserted, and are extremely simple in structure, have a good space factor, and can facilitate assembly work. Also,
In FIG. 3, the sides 125 of the cassette lid 12,
Although the through holes 128 and 129 are formed in each of the holes 127, it goes without saying that only one of them may be formed.

Furthermore, prevention of both reel shafts 17 and 18 from being pushed in both directions can be achieved by simply providing a stop slider 57 between both reel shafts 17 and 18, and this can be reliably prevented with an extremely simple configuration. and can sufficiently protect the tape recorder.
This is suitable for downsizing.

Next, FIG. 15 shows the shapes of the reel caps 38, 48 of the reel shafts 17, 18. That is, the reel cap 3 has a substantially cylindrical shape.
The outer circumferential surfaces of the tape cassettes 8 and 48 engage with protrusions (generally, there are 6 protrusions per reel hub in a compact tape cassette) that protrude toward the inner circumferential direction on both reel hubs of the tape cassette, thereby reeling the reel. In order to transmit the rotational force of the caps 38, 48 to the reel hub, blades 381, which have approximately diamond-shaped sides,
481 is formed.

Here, of the two reel caps 38 and 48, the function of the blade 381 of the reel cap 38, which is on the tape winding side to which rotational force is transmitted during fast forwarding, will be explained with reference to FIG. The function of the blades 481 of the reel cap 48 is the same as that of the reel cap 38, so a description thereof will be omitted. That is, in FIG.
Assuming that the reel cap 38 is rotationally driven in the direction of the arrow G in the figure in the fast-forwarding state, one of the blades 381 of the reel cap 38, one of the sloped portions 382 at the bottom in the figure, is aligned with the protrusion formed on the reel hub of the tape cassette. 383 (indicated by a two-dot chain line in the figure) to rotate the reel hub.

In such a fast-forwarding state, when the tape reaches the end, the rotation of the reel hub is stopped, so the reel cap 38 moves along the slope 38 of the blade 381.
2 is pressed against the protrusion 383 and rotation is stopped. Here, as mentioned earlier, when the stop operator 21 is operated, the second engaging part 542 of the lock lever 54 disengages from the engaging part 373 of the locking member 37, so that the reel cap 38 is moved as shown in FIG. It is moved upward in FIG. 16 by the biasing force of the spring 39 and returned to its original position.

At this time, the inclined portion 382 of the reel cap 38 presses the protrusion 383 at the same time, so that a buoyant force (P _s1 ) is generated in the reel cap 38 itself upward in FIG. 16. This buoyant force (P _s1 ) is
By forming the sloped portion 382 on the blade 381, the true force (P _v1 ) applied to the reel cap 38 when the sloped portion 382 presses the protrusion 383 is
This is generated by being divided into a force (P ₁ ) acting in the direction of rotation of the reel cap 38 and a buoyant force (P _s1 ).
That is, if the rotation torque of the reel cap 38 is (T ₁ ) and the rotation radius of the blade 381 is (r ₁ ), then there is a relationship of P ₁ =T ₁ /r ₁ , and the dashed line in FIG. When the angle with respect to the perpendicular shown by is (β ₁ ), the buoyant force (P _s1 ) is given by P _s1 =P ₁ tanβ ₁ =T ₁ /r ₁ tanβ ₁ .

Therefore, the reel cap 38 has the urging force of the spring 39 and the buoyant force (P _s
1 ) will be added, and it will be possible to reliably return to the original position. That is, in the conventional reel cap blade that does not have the inclined portion 382 as described above, if the blade is strongly pressed against the protrusion 383 of the reel hub when the end of the tape is reached, the spring 39 will not release even if the stop operator 22 is pressed. There is a problem that the reel cap may not return to its original position with only the biasing force, resulting in malfunction.

However, as described above, the blade 381 has the inclined portion 3.
By forming the reel cap 82, the reel cap 38 can be reliably returned to its original position. Further, since it is not necessary to use a spring 39 with a strong biasing force, the pressing operation force of the fast-forwarding operator 19 can be reduced. Furthermore, if the shape of the blade 381 is approximately rhombic as shown in FIG. 16, this reel cap 38 can also be used as the other reel cap 48. In other words, which reel shaft 17,
It can also be used as a 18 reel cap.

In addition, the blades 3 of the reel caps 38, 48
The shape of 81,481 is as shown in Fig. 17 a to c.
It may be done as shown in . In addition, Fig. 17 a, c
1 shows the shape of the reel cap 38, and FIG. 1B shows the shape of the reel cap 48. That is, in this case as well, the reel cap 38 will be mainly explained. First, the blades 381 of the reel cap 38 protrude at approximately the lower half in the figure with an inclination that is approximately tangential to the outer circumferential surface of the reel cap 38, and the protruding surface is attached to the reel cap 3.
a vertical portion 384 formed parallel to the center line of 8;
Figure 17a: The upper half is (β) with respect to the center line.
₁ ) and an inclined portion 382 having an angle of 1). The reel cap 48 also includes a vertical portion 4 similar to the vertical portion 384 and the inclined portion 382.
84 and a sloped portion 482 are formed in the opposite direction from the reel cap 38.

In the tape fast forwarding state, the inclined portion 382
is pressed against the protrusion 383 (not shown in FIG. 17) of the reel hub, the tape runs, and when the end of the tape is reached, the inclined portion 38
The buoyancy due to the action of 2 acts, and the reel cap 38
is returned to the upper part in FIG. 17a. Therefore, the vertical portion 384 of the reel cap 38 faces the protrusion 383 of the reel hub. Therefore, in the stopped state, as shown earlier in FIG. 16,
This makes it easier for the reel hub to come out of the reel cap 38 than when the protrusion 383 remains opposed to the slope 382, making it easier to take out the tape cassette. Further, the shape of the blades 381, 481 as shown in FIG. 17 makes it easy to mold the reel caps 38, 48, for example, when molding them from a synthetic resin material.

Also, the blades 38 of the reel caps 38, 48
1,481 may, of course, be of the shapes shown in FIG. 18 and FIGS. 19a and 19b, respectively, in addition to the above.

Here, the angle (β ₁ ) of the inclined portions 382, 482 of the blades 381, 481 of the reel caps 38, 48 is actually preferably about 18°.

As mentioned above, a feature of the present invention is that the blade of the reel cap is formed with an inclined portion that generates a force in the direction of returning the reel shaft when the tape stops running.

Next, as shown in FIG.
Teeth 0, 42, 50, and 53 are inclined and formed into so-called helical teeth. This corresponds to the inclined portions 382, 4 of the reel caps 38, 48 mentioned above.
It is formed for the same purpose as 82, and in short, when the end of the tape is reached, the reel cap 38,
This is to obtain buoyancy to return 48 to its original position. In other words, here too, reel cap 3
8, I will mainly explain its operation. First, in FIG. 21, the gear 42 receives the rotational force from the flywheel 33 and is rotated in the direction of arrow H in the figure, which causes the reel cap 38 to rotate in the direction of arrow G in the figure and enters the fast feed state. Let's say you're getting cozy.

When the tape reaches the end in such a fast-forwarding state, the rotation of the reel hub is stopped, and therefore the rotation of the reel cap 38 and gear 40 is stopped. When the stop operator 22 is operated, the reel cap 3 is moved by the biasing force of the spring 39.
8 is returned to the upper part in FIG. At this time, since the rotational force from the flywheel 33 is transmitted to the gear 42, the gears 40, 4
Due to the inclination of the teeth No. 2, a buoyant force (P _s2 ) is generated upward in FIG. This buoyancy (P _s2 )
The rotation of the reel cap 38 is stopped, that is, the gear 4
When the rotation is stopped at 0, the helical teeth of the gear 42 are connected to the gear 40.
When the helical teeth are pressed, the true force (P _v2 ) applied to the gear 40 is generated by being divided into a force (P ₂ ) acting in the rotational direction of the gear 40 and a buoyant force (P _s2 ). That is, if the rotational torque of the gear 40 is (T ₂ ) and the radius of the gear 40 is (r ₂ ), then there is a relationship of P ₂ =T ₂ /r ₂ , and the helical angle of the helical teeth of the gear 40 is (β ₂ ), the buoyant force (P _s2 ) is given by P _s2 = P ₂ tan β ₂ = T ₂ /r ₂ tan β ₂ .

Therefore, the reel cap 38 has the urging force of the spring 39 and the buoyant force (P _s
1 ) and (P _s2 ) are added, allowing for more reliable recovery. Further, during rewinding, the reel cap 48 can be explained in the same manner as above.

Next, FIG. 22 shows the first driving part 212 of the playback operator 21 and the first engaging part 54 of the lock lever 54.
This shows the relationship with 1. That is, with the playback operator 21 locked at the operating position,
The first engaging portion 541 of the lock lever 54 is located on the bottom surface of the first driving portion 212 of the playback operator 21.
It is adapted to be engaged with the bottom surface of the cassette holder 28, which is opened in the direction of arrow A in FIG. 22 when viewed from the operating shaft 211, on the opposite side to the opening side.
When the cassette lid 12 is opened in such a reproducing state, the cassette holder 28 is rotated in the direction of arrow A in FIG. 22, and the reproducing operator 21 supported by the cassette holder 28 is also moved in the same direction. For this reason, the first drive unit 2 integrated with the playback operator 21
12 is disengaged from the first engaging portion 541 of the lock lever 54, that is, moved in the direction of arrow I in FIG. 22, and the regeneration operator 21 is returned to the non-operating position. It is something that exists.

Therefore, if the cassette lid 1 is accidentally opened in the playback state,
2 is opened, the tape is automatically stopped, thereby preventing damage to the tape. That is, in the playback state, the pinch roller 30
is pressed against the capstan 26 via the tape, and when the cassette lid 12 is opened in this state, the tape cassette and the pinch roller 30 are moved together with the cassette holder 28, so that eventually there will be a gap between the pinch roller 30 and the capstan 26. The problem arises that the tape is rubbed and damaged. Therefore, when the cassette lid 12 is opened in the playback state,
By automatically bringing the pinch roller 30 into a stopped state and separating it from the capstan 26, damage to the tape can be prevented.

In addition, the first drive section 212 of the playback operator 21
is provided at a predetermined distance from the center of rotation of the cassette holder 28 by the operating shaft 211. Therefore, even if the cassette lid 12 is opened only slightly, the first drive section 212 can move a large amount in the direction of the arrow I in FIG. 22, so that the playback operator 21 can be reliably unlocked. , the tape can be protected. In this regard,
Some conventional tape recorders of this type have a playback operator that is unlocked in conjunction with the opening operation of the cassette lid. However, in such conventional mechanisms, the playback operator is provided in the cabinet rather than the cassette holder, and the playback operator is unlocked via a lock release member that is linked to the opening operation of the cassette holder. Therefore, it is necessary to provide a special member for unlocking, which complicates the structure and is contrary to miniaturization.In addition, there is a problem that the playback operator cannot be unlocked unless the cassette lid is actually opened to the substantially fully open position.

However, according to the configuration shown in FIG. 22, the playback operator 21 is provided on the cassette holder 28, and the lock is released by utilizing the movement of the playback operator 21 in conjunction with the opening operation of the cassette holder 28. This eliminates the need for a separate member for unlocking as in the past, making the configuration simple and suitable for downsizing.In addition, the lock can be unlocked by opening the cassette lid 12 slightly, ensuring reliable tape protection. It is something that can be done.

Next, FIGS. 23a and 23b show the aforementioned tuner pack 60. FIG. 23a shows the surface of the tuner pack 60 facing the cassette lid 12, and FIG. 23b shows the surface facing the main chassis 25. This shows that. That is, a long hole 121 (see FIG. 1) formed in the cassette lid 12 is provided on the surface of the tuner pack 60 facing the cassette lid 12.
Tuning dial 6 that can be operated externally by inserting the
01 and a tuning display section 602, a band display section 603, a reception frequency display section 604, etc., which are visible from the outside through the window section 23 of the cassette lid 12, are provided. Further, on the surface of the tuner pack 60 facing the main chassis 25, there are recesses 605, 6 for allowing the reel shafts 17, 18 to escape when the tuner pack 60 is installed in the tape cassette storage section 14.
06 and the tuner pack 60, a plurality of connection terminals 607 and the like are respectively provided for supplying the received signals received, tuned, detected, amplified, etc. by the tuner pack 60 to the tape recorder.

Similarly to the tape cassette, the tuner pack 60 is supported by a cassette holder 28, which is not visible in FIG. 24, when the cassette lid 12 is opened, as shown in FIG.
By closing the connection terminal 607, the connection terminal 607 is connected to the connection terminal 608 inside the cabinet 11, and the received signal is introduced into the circuit section inside the cabinet 11.

Here, as shown in FIG. 24, the tuner pack 60 is provided with a band switching switch 609 on the side surface corresponding to the side portion 126 that becomes the opening tip of the cassette lid 12 when the cassette lid 12 is opened. . Therefore, just by opening the cassette lid 12, the tuner pack 60 can be placed in the cassette holder 28.
The band changeover switch 609 can be operated without having to take it out, making it extremely easy to handle.

Regarding this point, in conventional tape recorders using tuner packs, a band selection switch is provided at a predetermined position on the flat surface of the tuner pack as shown in FIG. It is difficult to operate and has poor operability. In addition, in order to make the band selection switch externally operable, a through hole for inserting the band selection switch may be formed at a corresponding position on the cassette lid, but if this is done,
There is no particular problem when using a tuner pack, but when using a tape cassette there is a problem that the appearance deteriorates.

However, as shown in FIG. 24, the opening tip of the cassette lid 12 of the tuner pack is
Since the band changeover switch 609 is provided on the side corresponding to 6, it can be operated by simply opening the cassette lid 12 slightly, improving operability and also being advantageous in terms of appearance. In addition, if necessary, the side surface 111 of the cabinet 11 corresponding to the band changeover switch 609 may be
A notch is formed in the cassette cover 12 so that the band changeover switch 609 can be operated externally with the cassette lid 12 closed. In this case, since the notch is formed on the side surface 111 of the cabinet 11, it is more advantageous in terms of appearance than the conventional one. moreover,
The switch provided on the side of the tuner pack 60 is not limited to the band changeover switch 609.
An arbitrary operator (for example, a channel selection dial, etc.) for receiving other radio waves may be provided.

Here, FIG. 25 and FIG. 26 respectively show other external shapes of the tape recorder described above, and parts corresponding to the same parts as in the above explanation are denoted with the same symbols, and detailed explanations are given. is omitted.

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

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

[Effects of the Invention] Therefore, as detailed above, the present invention provides an extremely good cassette tape recorder that can reliably prevent malfunctions with a simple configuration and can effectively promote downsizing. equipment can be provided.

[Brief explanation of the drawing]

1a and 1b are respectively a front view and a side view showing a tape recorder to which the present invention is applied, and FIG. 2 is a perspective view showing a cassette lid of the tape recorder.
Fig. 3 is a perspective view showing how the fast forward and rewind operators are attached to the cassette lid, Fig. 4 is a perspective view showing the external appearance of the mechanical part, head part and cassette holder of the tape recorder, and Fig. 5 A perspective view showing the opened state of the cassette holder in Figure 4, Figure 6.
7 is a perspective view showing the relationship between the playback operator and the head section; FIG. 8 is a perspective view showing the playback operator in an operated state; 9 to 12 are explanatory diagrams of the operation of the tape recorder mechanism, FIG. 13 is a perspective view showing details of the stop operator, and FIG. 14a,
15 and 16 respectively show an embodiment of the cassette tape recorder device according to the present invention, and are perspective views showing the shape and action of the blades of the reel cap. Figures and side views, Figures 17a to c,
Figures 18 and 19 a and b are a side view, rear view, perspective view, and side view showing other shapes of the blades of the same reel cap, respectively, and Figure 20 is a diagram showing the shape of each gear of the tape recorder mechanism. FIG. 21 is a side view illustrating the action of each gear, FIG. 22 is a perspective view showing the relationship between the regeneration operator and the lock lever, and FIGS. 23a and 23b are a front and rear view of the tuner pack, respectively. 24 is a perspective view showing the tuner pack installed in a cassette holder, and FIGS. 25 and 26 are front views showing other external appearances of the tape recorder to which the present invention is applied. 11...cabinet, 12...cassette lid,
13... tape cassette, 14... tape cassette storage section, 15... mechanism storage section, 16... head section, 17, 18... reel shaft, 19... fast forward operator, 20... rewind operator, 21... Playback operator, 22... Stop operator, 23... Window section, 24...
... Support shaft, 25 ... Main chassis, 26 ... Capstan, 27 ... Motor, 28 ... Cassette holder, 29 ... Playback head, 30 ... Pinch roller, 31 ... Head chassis, 32 ... Playback drive member, 33 ... Flywheel, 34 ... Belt, 35 ... Gear, 36 ... Bearing member, 37
... Lock member, 38 ... Reel cap, 39
... Spring, 40 to 43 ... Gear, 44 ...
...Friction member, 45...Stopper, 46...Bearing member, 47...Lock member, 48...Reel cap, 49...Spring, 50...Gear, 51...
... Mounting member, 52 ... Rewind lever, 53 ... Gear, 54 ... Lock lever, 55 ... Switch lever, 56 ... Leaf switch, 57 ... Stop slider, 58 ... Friction lever, 59 ... Detection Lever, 60... Chuyunapatsuku.

Claims (1)

[Claims] 1. A reel shaft provided in the tape cassette storage portion so as to be rotatable and slidable in the axial direction, a lock mechanism capable of locking or unlocking the reel shaft at an operating position, and a locking mechanism that locks or unlocks the reel shaft in an operating position, and a reel shaft that locks or unlocks the reel shaft in conjunction with the operation of the reel shaft. a tape recorder mechanism for achieving a predetermined running state, and a blade that is provided on the reel shaft and engages with a protrusion formed on a reel hub of the tape cassette to rotate the reel hub;
an inclined portion that divides the force with which the blade presses the protrusion by the rotational force of the reel shaft when the tape stops running and the rotation of the reel hub is stopped, and generates a force in the return direction to the reel shaft; A cassette tape recorder device comprising: