JPS6182317A - Cassette deck - Google Patents

Abstract

PURPOSE:To make reverse reproducing possible even with a manual operation by using the same driving source for both gears which drive a head base and a magnetic head respectively and providing a magnetic head switching command rod which can be engaged with a start trigger level included in a trigger means of both gears. CONSTITUTION:The head base is so provided that it can be freely moved back an forth in the direction approximately orthogonal to the tape carrying direction, and the magnetic head is provided freely turnably on the head base. The head base is moved back and forth by a gear 33, and the head is rotated by the gear 34. A rotating force is given to gears 33 and 34 by the same motor, and the trigger means is so provided that the gear 34 is engaged with a transmission mechanism after the gear 33 is engaged with it. The trigger means is provided with a start trigger lever 73 which is engaged with the gear 33 and has the other end part engage with a tape and detecting lever 10, the magnetic head switching command rod which is engaged with the lever 73, and an electromagnetic solenoid and a switching command switch which drive this rod. Thus, a cassette deck is made small-sized, and reverse in the tape reproducing direction is possible even with the manual operation.

Description

[Detailed description of the invention] Technical field The present invention relates to a cassette deck.

BACKGROUND ART In recent years, cassettes 1 to 1 to 2 decks have been becoming more and more compact, especially in the case of ■11 cullet decks.
~Because there is a limit to the space that Detsuki should be accommodated,
There is a strong demand for miniaturization. Also, when playing back, for example, a 4-track magnetic tape that has been recorded in both forward and reverse directions,
Normally, when playback in one direction is completed, the cassettes 1 to 1/2 are reversed and replaced, but to eliminate the trouble of replacing the cassettes 1 to 1/2, the cassettes 1 to 1/2 have a built-in so-called auto-reverse mechanism [developed by Tachino]. has been done.

Well-known j; sea urchin, oh 1 ~ reverse m side (,
1. The magnetic tape is automatically run in reverse, and the magnetic head is set to match the 1 to 1 rack in both forward and reverse directions.

Various configurations for switching the magnetic head forward and reverse have already been proposed, but for example, when re-recording a 41-rack magnetic tape,
In this case, a 4-channel magnetic head is installed and two channels of each of the 4 channels are electrically switched according to the forward and reverse running of the magnetic tape, or a 2-channel magnetic head is installed (J and the magnetic head There is a type in which the main body of the magnetic head is mechanically moved in parallel or rotated in parallel with the forward and reverse running of the tape. A system in which the magnetic head is rotated has been adopted because adjustments can be made independently and therefore better reproduction frequency characteristics can be obtained compared to the conventional system.

In the magnetic head rotation type, the magnetic head is moved in a direction substantially perpendicular to the -l tape transport direction to separate the magnetic head from the magnetic tape, and then rotated, and then the magnetic head is moved back to move the magnetic head to the magnetic tape. Abutment is performed.

The already developed force is applied to the deck.In the deck, there is a drive source for rotating the magnetic head, and a stage separate from the drive source is used to move the magnetic spatula in a direction approximately perpendicular to the tape transport direction. At least two drive sources for reciprocating motion
Two driving sources were provided. Therefore, this has been a problem in reducing the overall size of the Karen 1-deck and reducing the number of 21 s.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned points, and the object of the invention is to easily reduce the size of the entire cassette 1 to 1 and to reduce the size of the cassettes 1 to 1. Cheap Chikara Sera 1 Hedetsu 4
: to provide.

The power deck according to the present invention includes a head stand that can reciprocate in a direction substantially perpendicular to the tape transport direction, and two angular positions on the head stand about an axis substantially parallel to the moving direction of the head stand. A magnetic head, a tape transport direction switching means that determines a tape transport direction corresponding to the angular position of the magnetic head, and a first gear that reciprocates the head stand by rotation. a head rotation mechanism including a 21st wheel that rotates the magnetic head by rotation;
and a gear transmission mechanism capable of meshing with the second gear;
and a rotary horn applying mechanism that applies rotational force from a single drive source to the 211J wheel, a tape end detection mechanism that has an end detection lever and detects the end of the tape, and one end of which is engaged with the first gear. a start trigger lever which has a start trigger lever and whose other end can engage with the end detection lever;
A trigger means is provided for causing the second gear to mesh with the gear transmission mechanism after the gear has meshed with the gear transmission mechanism, and the first trigger means is arranged between the most forward position and the most backward position. a regulating portion that is provided so as to be reciprocally movable and is caused to move forward by the rotation of the first gear, and that engages with the second gear to restrict rotation of the second gear when the first gear is not in the most backward movement position; a control plate in which a control plate is formed; a biasing means for biasing the control plate in the backward movement direction; a prohibition means configured to release the prohibition upon initial movement of the width; and a biasing means configured to bias the first and second gears in a direction in which they mesh with the gear transmission mechanism; a magnetic head switching command rod that partially engages with the magnetic head;
The apparatus is characterized in that it includes an electromagnetic solenoid that drives the magnetic head switching command rod, and a switching command switch that operates the electromagnetic solenoid.

□Example Hereinafter, a Kazetsu I-deck as an embodiment of the present invention will be explained with reference to the attached drawings.

In the figure, reference 1 indicates the entire Karen 1 deck.

As shown in FIG. 1, the front surface of the housing 2 is provided with a rectangular and laterally elongated opening 2a into which a cutlet L-half (described later) is inserted. However, the forward here refers to the direction shown by the arrow Y in the figure, and the h (jh direction is the direction C toward the front. Therefore, the direction of the arrow IT] One side is accepted in the Z direction.

As shown in FIGS. 2 and 3, as well as FIGS. 9 and 10, a chassis 3 made of a steel plate or the like is provided within the housing 2. As shown in FIGS. J shown in Figure 4: Sea urchin,
On the chassis 3, a pair of reel units 5 are arranged side by side in the front and rear direction, and are rotatably attached to the chassis. As is clear from FIG. 11, the reel units 1 to 5 have a rotating shaft 5a fixed to the chassis 3. A reel 51 is attached to the rotation support shaft 5a.
) is rotatably fitted on the outside. A collar 5G and a bush 5d are fitted to the upper and lower ends of the reel 511, respectively. The collar 50 is installed in the cassette half indicated by -F, and is provided in a cassette 1 heel reel on which a magnetic tape is wound. A disk-shaped enlarged diameter portion 5e is formed in the center of the reel 5b, and a double gear 5f having two large and small gear portions is arranged between the enlarged diameter portion and the bushing t5d. , one is rotatably mounted on the rotation support shaft 5a.

A coil spring 5g is interposed between the double gear 5 and the bush 5d, which biases the double gear and the bush in a direction that separates them from each other. Also, between the enlarged diameter part 5e of the reel 5b and the double gear 5f,
is established (). The felt plate 511 is attached to the enlarged diameter portion 5e, and is slidably in contact with the double gear 5f. An arm 51 is installed between the upper surface of the enlarged diameter portion 5e and the collar 50, and one end of the arm 51 is rotatably attached to the outer periphery of the reel 5[). The lower surface and the "-" surface of the b l are movably engaged with the enlarged part F'i0 and the collar 50 of the reel 5b via the washers r5j and 5k, and the washer 5 and the arm 51 of the "100" In between, move the arm downward (d force = 1
Ile spring 5Q is arranged.

As shown in FIG. 2, FIG. 3, FIG. 9, and FIG. It is rotatably attached to the chassis 3 in a plane parallel to the main surface of the chassis. A rectangular opening 71] is formed at the front end of the intermediate lever 7, and a pin 8a protruding from the center of a floating lever 8 movably provided on the chassis 3 is formed in the opening. is loosely fitted.

Pins 8b are also protruding from both ends of the floating lever 8, and each pin is engaged in a slotted hole 5n+ formed at the free end of the arm 51 of the reel unit 5 so as to be freely retractable. ing. As shown in FIGS. 7 and 18, an end detection lever 10 is disposed near one condensing portion of the intermediate lever 7. As shown in FIGS. This T-hand detection lever 10 is located at the seat 3.
It was fixed to the upper surface of the rear end of the tsubushi i?
- The upper end of the lever AI2, which is rotatably installed on the shaft △11, is attached to one end of the rotation, in this case, the right end of the lever A. The lower end of the end detection lever 10 A protrusion 10a extending downward is provided on the part, and the protrusion engages in a notch 7C formed at the rear end of the intermediate lever 7 so as to be freely movable.

As shown in FIGS. 7, 9, and 18, a pin 101) is protruded from the rear surface of the lower end of the end detection lever 10, and the pin is rotatably housed in the I-nub chassis. The end detection gear 14 is engaged with the end detection gear 14 which is bent over the rear end surface of the end detection lever 10 and faces the rear end surface of the end detection lever 10. Figure 7 and 1
As is clear from FIG. 8, a recess 14a is formed on the surface of the end detection gear 14 facing the end detection lever 10.
On the circumferential side of the concave portion, there is a substantially mountain-shaped protrusion 1411 which protrudes in the radial direction of the []-nd detection lever and has a substantially same shape.
There are three installed at Pif. MaI:, recess 1
At the center of 4a, each protrusion 1/I is in the shape of 1/I.
Three protrusions 14c, each of the same shape, extending in the direction L) ('h'l IJ shape) are formed in the valley between t+. If we imagine the circle inside the seed part, the diameter of each of these times is approximately the same J, and the diameter is approximately the same. 14
1] and the protrusion 14 ().

The reel E1 knit 5, the intermediate lever 7, the floating lever 8, the end detection lever 10, and the T-end detection gear 1/l detect the en 18 of the magnetic tape being played. Part of the tape end detection mechanism for (14
has been completed.

As shown in FIGS. 2, 7, 9, and 18, the end detection gear 14 is located on the rear surface of the rib chassis 11.
On the left side are four gears 16.17.1 meshing in series.
A gear transmission mechanism 20 consisting of fl and 19 is provided, and the first detection gear 14 meshes with the final stage gear 19 of the gear transmission mechanism.As shown in FIG.
The first stage gear 16 of the gear transmission mechanism 20 (however, the reference numeral 20 is not shown in FIG.
A-arm 22, which is rotatably attached to the shaft, is engaged with the shaft. A pulley 23 is integrally formed at the lower end of the worm 22. As shown in FIG.
is rotationally driven via a belt 25 by a motor 24 disposed at the right rear end of the seats 1z-3. Note that the belt 25 is connected to a small pulley 2 fitted to the protruding shaft of the motor 24.
Directly or ['J turned to 4a.

As is clear from FIG. 10, the bell 1 and 25 are also rotated by a pair of flywheels 27 that are rotatably provided on the lower surface of the chassis 3 in a row. However, the direction of rotation of the motor 24 is the direction of arrow M, which is the forward rotation direction.
On the other hand, the bells 1 to 25 are turned one turn so that the pulley 23 always rotates in the direction of arrow N, and the pair of flywheels 27 always rotates in the direction of arrows O and P, respectively.

The flywheel 27 has gear portions 27a and 27b of different sizes on its outer and inner circumferences. flywheel 2
Of the two large and small gear portions formed in 7, the smaller gear portion 27b is configured to mesh with the large diameter gear 7 portion of the double gear 5f of the reel unit 1 unit 5 via a pair of front and rear idler gears 28. . As is clear from FIGS. 2, 3, and 9, the idler gear 28 is connected to the chassis 3.
It is rotatably attached to one end of a swingable support lever 30 via a shaft part 30a, and the swinging of the support lever causes the reel to be reeled. -1
The double gear 5 of Nitsu 1 to 5j is designed to frost U IIt2. Also, the support lever 30 is -J-
The idler gear 28 is biased in the direction closer to the double gear 5 by the (Rusbri leg 30I). .

As shown in FIGS. 2, 7, 9, and 18, the rear surface of the rib chassis A11 has a first gear 33 and a second gear at 1h of 19. 34
is rotatably attached. The first gear 33 meshes with the gear 16 of the gear transmission mechanism 20 (see, for example, FIG. 7), and the second gear 34 meshes with the gear 18 of the gear transmission mechanism.

Here, the gear transmission mechanism 20, the worm 22, the pulley 23, the belt 25, etc.
3 and the second gear 34 is constructed. Further, the rotational force applying mechanism and the motor 24,
A rotational force applying means for rotationally driving the first gear 33 and the second gear 34 is configured.

The first gear 33 is for reciprocating the head pedestal, and first, the structure that connects and covers the first gear and the head pedestal will be explained.

For example, as shown in FIGS. 7 and 18, a pin 33a is protruded from the rear surface of the first gear 33, and the first gear 33 is attached to the pin in the direction of the timepiece in FIG. One end of a coil spring 35 is hung. The other end of the coil spring 35 is hooked onto plays 1 to 36 fixed to the tips of rotational shafts (not shown) of the gears 16 and 18.

As shown in FIG. 2, FIG. 3, FIG. 9, and FIG. Bend part 3 extending to
a is formed. 6 is shown in FIG. j; Sea urchin,
A control plate 39 made of a steel plate is mounted on the front surface of the bent portion 3a so as to be movable in the left-right direction. The position of the movement limit located to the left of the control board 39 is referred to as the most forward movement position of the control plate, whereas the movement limit position of 1 position to the right is called the most backward movement position. to be called. A coil spring 40 is connected to the right end of the control plate 39 for biasing the control plate to the right, that is, in the backward movement direction. A protrusion 39a with which the pin 33a of the first gear 33 can be engaged is formed at the upper end of the control plate 39 at approximately the center thereof. Protrusion 39a
41 is engaged with the bin 33a at its right edge, so that the control plate 39 is moved forward by the rotation of the first gear 33. Figures 2, 4 and 10
As shown in the figure, a lever B42 is arranged below the control plate 39 and is connected to the control plate via a coil spring 41 and moves to the left as the control plate moves forward. A protrusion 42a is formed at the right end of the lever B42 and engages with the right edge of the protrusion 391 formed at the lower end of the control plate 39.
As the control plate 39 moves back due to the biasing force, the lever B7I
2 also returns to the right side. As is clear from FIG. 2, FIG. 8, and FIG. 10, the left end of the lever F342 is provided on the lower surface of the chassis 3 so as to extend back and forth, and rotates at its center via the hinge pin 44a. It is pivotally attached to the rear end of lever C44, which is freely attached to chassis 3. The front end of this lever C44 is pivotally attached to a head stand 47 provided on the chassis 3 so as to be able to reciprocate in the left-right direction. The driving direction of the magnetic tape is the front-back direction, and therefore the moving direction of the head stand 47 is approximately perpendicular to the tape driving direction jxh.

The first gear 33, the control plate 39, the 21st gear spring/10.41, the lever 842, and the lever C44.
A head stand drive mechanism for driving the head stand 47 is constituted by the peripheral small portion 44 related thereto.

Next, the related parts (A) of the second gear 34 will be explained. The second gear 34 is a gear for rotating the magnetic head 49 provided on the head stand 47 JZ, and is Also, the rotation ratio of the first gear 33 and the second gear 34 is 1:1.

As is clear from FIGS. 7 and 18, the second gear 34
Two stop pins 34a and 34b are protruded from the rear surface with a pitch of 180°, and one stop pin 34. a passes through the second gear so as to also protrude from the front surface of the second gear. In addition, both stop bins 34
a, 341) can be engaged with the right edge of a protrusion 39G protruding from the upper end of the rear end of the control plate 39. Control board 39
can be moved to and from both slots at any time.

Further, near the second gear 34, there is a claw member 518.

A spring member 51b is provided, and the second m 7143
/I is biased clockwise in FIG. 18 by the claw member and the spring member. J shown in FIG.
In addition, a movable plate 52 made of a rope plate is attached to the rear surface of the rib chassis so as to be able to reciprocate in the left and right direction.
It is being The second gear 3 is located at the right end of the moving plate 52.
Claws 52a and 521 which can be engaged with the slots 1 to 34a protruding from the front surface of the housing 4 are formed. Claw portion 52a
The right edge of the groove engages with the stop pin 34a, and
The claw part 521) is attached at its left edge by the lug pin 34a.
It is designed to engage with In other words, moving play 1
52 reciprocates as the second gear 34 rotates 180° in one direction.

As shown in FIG. 2, FIG. 3, and FIG. 9, a lever D53 formed in a substantially dogleg shape is disposed near the left end of each of the movable plays 1 to 52, and the lever D53 has a central bent portion. It is rotatably mounted on the top surface of the sillage 3. Further, the lever D53 is click-biased by a spring 54 (see FIG. 3). The left end portions of the moving plays 1 to 52 are pivoted to the rear dMi portion of this lever r)53. The front end of the lever D 530 is pivotally connected to the rear end of a slide member 56 (mounted in FIG. 5) provided on the head stand 47 so as to be able to reciprocate in the front-rear direction.

As shown in FIGS. 2, 5, and 9, the magnetic head 49 is disposed to the right of the J slide member 56.

The magnetic head 49 is rotated around an axis parallel to the moving direction of the head stand 47 by a bearing member 57 fixed to the head stand 47F.
It is supported so as to be rotatable about an axis perpendicular to the contact surface of the magnetic head. The rotating shaft portion of the magnetic l\rad 9 is made of die 4゛1/st alloy, and the rotational Q+lt portion and 11
The bearing member 57 that meets x is made of glass fiber-containing PP S
It has become IA'J fat.

In addition, as shown in FIG.
)°I position is referred to as the first angular position of the magnetic head, and
A position rotated by 180 degrees from the first angular position is referred to as a second angular position of the magnetic head. The magnetic head 49 is rotatable between the first angular position and the second angular position.

Five fan-shaped gears are arranged at positions sandwiching the slide member 56 together with the bearing member 57, and are rotatably attached to the front end of the bearing member 57 at the main part of the fan. However, so that the joint between the fan-shaped gear 59 and the bearing member 57 does not hinder the reciprocating movement of the slide member 56,
The slide member 56 is provided with an elongated hole 56a extending in the front-rear direction and into which the coupling portion is loosely fitted. In addition, fan-shaped gear 5
9 is click-biased by a coil spring 60. A pin 59a is provided protruding from the right end surface of the fan-shaped gear 59, and the pin 59a is pivotally attached to the slide member 56.

That is, the fan-shaped gear 59 swings as the slide member 56 reciprocates. fan-shaped gi・
The gear part 59 is meshed with a gear 61 coaxially fixed to the rotating shaft parts of the four magnetic heads.

The second gear 34, the moving plays 1 to 52, the lever 1) 53, the spring 54, the slide member 5G, the bearing member 57, the sector gear 59, the =1 spring 60, and the gear 61. , surrounding small areas related to these (A
A head rotation mechanism for the IC which rotationally drives the magnetic head/I9 is constructed. Further, the head rotation mechanism and the above-described head stand drive mechanism are collectively referred to as a control 1 mechanism.

In other words, No. 5, the control mechanism causes the head stand 47 to
The magnetic head 49 is rotated and the magnetic head 49 is rotated U.As can be understood from the above explanation, the head stand 17 is rotated by 360° rotation of the first tooth width 33. It performs both moving and backward movements, and also
The magnetic head 49 is rotated by 180 degrees when the gear 3/l rotates by 180 degrees.

Here, the azimuth adjustment means for regulating the angle of the magnetic head 19 will be explained.

For example, as shown in FIGS. 5 and 9, the head stand/
170 and 41, a regulating member 64 extending in the front-rear direction and covering the magnetic head 49 is fixedly provided so as to surround the magnetic head 49.

The regulating member 64 is made of a steel plate and has flexibility. The regulating member 64 is formed symmetrically in the front-rear direction, and is fixed to the head stand 47 at its center portion, and both front and rear ends extending in directions away from each other around the center portion serve as the magnetic head 49. It can be engaged with the outer periphery of. More specifically, both the front and rear ends of the regulating member 64 are positioned so as to sandwich the magnetic head 49 from the front and back, and both ends are bent in the shape of an opening, with the lower side of the U-shape being a magnetic head. A protrusion 49a protruding from the outer periphery of the head 49
By engaging with the magnetic head 49, rotation of the magnetic head 49 is restricted.

Note that an opening 64a is provided on the upper surface of the regulating member 64 so that the protrusion 49a of the magnetic head does not come into contact with the regulating member 64 when the magnetic head 49 rotates. A pair of screws 65 screwed into the head stand 47 are engaged at both front and rear ends of the regulating member 64 at their necks. Further, a pair of springs 66 are interposed between the lower surfaces of both front and rear ends of the regulating member 64 and the head stand 47 to provide an upward bias to the front and rear ends. However, only one spring 66 is shown in FIG. These screws 6
5 and the spring 66 constitute positioning means for positioning both the front and rear ends of the regulating member 64.

Further, the positioning means and the regulating member 64 constitute an azimuth adjusting means. ′? However, by tightening or loosening the pair of screws 65, the angle of the magnetic head 49 can be adjusted individually at the two angular positions.

The regulating member 64 is divided at its center to form two members, each of which is fixed to the head stand/17 directly above the magnetic head 49 in the form of a cantilever. A similar effect can be obtained in the Song Dynasty. However, by making the above-mentioned regulating member into a single member having a front-back symmetrical shape, the number of parts and the number of assembly parts are reduced, which contributes to the reduction of S1.

The story goes back and forth, but for example, as shown in FIG. 18, the first wheel 33 has two toothless parts 33c and 33(1) symmetrically provided with a partial tooth part 3311 having about three teeth as a boundary. When the first gear 33 is in a stationary state, the toothless portion 33c corresponds to the gear 16 (a part of the gear transmission mechanism 20), and the first gear 33 is partially connected by the start 1 heli gear lever described later. The teeth 331) are prevented from biting into the gear 16. On the other hand, 18
Two toothless portions 34C and 34[1] are formed with a pitch of 0°, and when the second tooth width is in the operating 1irf stationary state, the toothless portion 34c is connected to the gear 18 (gear transmission mechanism 2).
0), and the rotation of the second gear is regulated so that the right tooth portion does not enter the gear 18, as will be described later.

Next, a trigger means for causing the second gear 34 to mesh with the gear 18 after the first tooth 33 meshes with the gear 16 when the first gear 33 and the second gear 34 rotate will be explained. do.

As is clear from FIG. 4, at the rear end of the control plate 39,
A regulating portion 39 that engages with the pins 1 to 34a and 31+ of the second gear 34 to regulate rotation of the second gear when the control plate is not at the maximum backward movement position (rightward movement limit position). (1 is formed.

As shown in FIG. 2, FIG. 4, and FIG. Part 3a
What can be freely swung into the space?

The prohibition lever 69 is formed with an engagement recess 69a that can be engaged with a pin 390 protruding from the front surface of the central portion of the control plate 39. In addition, the prohibition lever 69 is connected to a coil spring 70.
is biased in the longitudinal direction in FIG. 17. These inhibit levers 69 and fill springs 70 cause the control plate 39 to move backward (move rightward) when the control plate 39 reaches its maximum forward movement position (leftward movement limit position). Prohibition means are configured to prohibit 1]24.

On the other hand, as is particularly clear from FIG.
A protrusion 33'' is formed that can be engaged with the first
When the gear 33 initially moves, the protrusion 33 of the first gear engages with the engagement protrusion 69b and is inhibited = 25- The lever 69 swings in the opposite direction as shown in FIG.
This is so that the backward movement prohibition state of the control plate 39 at the most forward movement position is released.

The above-mentioned inhibiting means (consisting of the 11 Nile Par 69, etc.), the control plate 39, the coil spring 40 as the J-force means, and the first
The partial tooth portion 33b of the gear 33 is connected to the gear 16 (gear transmission mechanism 2
a coil spring 35 as a biasing means for biasing the 1st m wheel (= J force) in the direction of meshing with the second gear 3;
A pawl member 51a and a spring member 51a, which serve as biasing means for biasing the second gear in a direction in which the right tooth portion of No. 4 meshes with the gear 18 (a part of the gear transmission mechanism 20), and the related covering thereof. When the first gear 33 and the second gear 34 begin to rotate, the first gear 33 meshes with the gear 16, and then the second gear 34 meshes with the gear 18.
Heliga means are configured.

As shown in FIGS. 2, 7, 9, and 18, a trident-shaped start trigger lever 73 is rotatable at the center of the four-knob chassis A11. installed.

As is clear from FIGS. 7 and 18, one end 73a of the start trigger lever 73 is bent rearward at a right angle.
The bent portion can be engaged with the first gear 33. More specifically, the bottle 33a protruding from the rear surface of the 11 m wheel 33 passes through the first gear and protrudes by a predetermined distance from the front surface of the first gear, and also extends from one end 7 of the start trigger lever 73. ' 3 a is adapted to engage with this portion protruding from the front, and thereby the first gear 3
The rotation of 3 is restricted. Start trigger lever
The second end 73b formed at 73 and extending to the right is the ! of lever A12. It engages with the E end from the lower surface of the left end. 1, that is, the second end 7 of the start trigger lever 73
31) is engaged with the second hand detection lever 10 via the lever A12, and when the second hand detection lever 10 moves downward, the star 1-1-rega lever 73
rotates clockwise as shown in Fig. 18, and the first gear 3 rotates clockwise.
The rotation restriction state of No. 3 is canceled. The star 1 trigger lever 73 has a third end 73c extending downward, and the third end engages with the left end of the magnetic head switching command rod 75 shown in FIG. The magnetic head switching command rod 75 is attached to the bottom surface of the chassis 3 so as to be able to reciprocate in the left and right direction.
It is made of steel plates and is shaped like a single character as a whole. As the magnetic head switching command rod 75 moves to the left, the start 1 trigger lever 73 rotates in the cutting direction in FIG.
: It is composed of sea urchins. Also, as shown in FIG. 10, a rightward piascus is attached to the third end 73c of the start trigger lever 73 near the head switching command Ron door 5). A coil spring 6 is disposed to make the coil spring 6 smaller. As shown in FIGS. 2, 3, and 17, an electromagnetic solenoid 77 is disposed near the motor 24 and extends left and right, and is fixed on the chassis 3. Movable door 7 of electromagnetic solenoid 77
a protrudes to the right with respect to the solenoid body, and a bottle 771 extending in the vertical direction is attached to the tip of the movable rod. A long hole 3C extending in the left-right direction is formed on the main surface of
, and the magnetic head switching command [1 to 7
It is engaged with the right end of 5. That is, when the movable rod 77a of the electromagnetic solenoid 77 is pulled, the magnetic head switching command rod 75 moves to the right (therefore, the start trigger lever 73 rotates in one direction as shown in FIG. 18). There is. Further, as shown in FIG. 1, an operation switch group 79 is arranged on the front surface of the housing 2 and to the right of the opening 2a, and one switch of the operation switch group is connected to the electromagnetic solenoid. The changeover command switch for operating the 77 is ringing. As shown in FIGS. 2, 4, 10 and 17, the chassis 3 has a control plate 39 attached thereto.
A moving member 81 is attached to the front surface of the rear end bent portion 3a so as to be movable in the same direction as the control plate, that is, in the left and right directions.

This moving member 81 is arranged at a position where it is sandwiched between the bending portion 3a and the control plate 39. A projection 81a is provided at the upper end of the left end of the moving member 81, and the pin 33a of the first gear 33 can be engaged with the right edge of the projection. That is, the moving member 81 moves to the left together with the control plate 39 as the 11th Skl wheel 33 rotates. A coil spring 82 is connected to the right end of the movable member 81 for imparting a rightward bias to the movable member.

As is particularly clear from FIG. 3, a T-shaped lever E83 is disposed on the right side of the moving member 81.
Further, it is rotatably attached to the rear end bent portion 3a of the chassis 3 at approximately the center thereof. A first end 83a formed on the lever E83 and extending downward is connected to the rear end of the moving member 81 via a coil spring 84. As the moving member 81 moves to the left, the lever E83 rotates clockwise in FIG. 17. A bottle 83c extending forward is protruded from the tip of the second end 83b formed on the lever E83 and extending leftward, and the bottle is connected to a convex portion 399 formed at the rear end of the control plate 39. and recess 391), respectively.

When the bin 83G is engaged with the fourth part 3911, the control plate 39 is in its most backward movement position (rightward automatic movement limit position).
Furthermore, when the bottle 83C is engaged with the convex portion 39g, the return of the control plate 39 to the most backward movement position is restricted. As mentioned above, when the control plate 39 is not at the maximum return position, the regulating portion 39 (
1 is a12 car 3/I stop bin 34a, 34b
The rotation of the second gear is restricted.

As shown in FIGS. 2, 3, 9, and 17, another electromagnetic solenoid 86 is arranged above the electromagnetic solenoid 77 in parallel with the electromagnetic solenoid. It is fixed on the chassis 3. A movable rod 86a of this electromagnetic solenoid 86 protrudes to the left with respect to the solenoid body, and a pin 861 extending in the front-rear direction is fitted into the tip of the movable rod. Yes, this bottle 86
b is a third portion formed on the lever F83 and extending upward.
It is pivotally attached to the tip of the end portion 83d. Further, when the movable rod 86a is in its protruding position (the position shown in FIG. 17), the pin 83C of the lever E83 is adapted to engage with the rear end protrusion 39o of the control plate 39. The electromagnetic solenoid 86 is activated by operating the key of the automobile in which the Kahit deck is mounted, and when the key is in the ON state, the movable rod 86a of the electromagnetic solenoid 86 moves the movable member 81 to the left. Therefore, lever E83 is pulled in and fixed in the retracted position.
The bottle 83c is located in the 1if OMi recess 39 of the control board 39.
h. Furthermore, when the key is turned off, the movable rod 86a is pulled out by the biasing horn of the coil spring 82 that biases the movable member 81 to the right.
engages with the rear end protrusion 390 of the control plate 39.

The above-mentioned moving member 81, coil spring 82, lever E83, coil spring 84, electric r4i solenoid 86, and surrounding small parts related to these allow the control plate 39 to be moved back to its final position when the power is turned off. A prohibition/cancellation means is configured that prohibits return to the position (right knob direction movement limit position) and cancels the prohibition when the power is turned on.

Next, a tape transport direction switching means for switching the transport direction of the magnetic tape will be explained.

As shown in FIGS. 2, 3, and 9, the shaft portion 1 of the support lever 30 rotatably holds the idler gear 28.
430a has a loud capstan. In addition, the 10th
As shown in the figure, this shaft member 3Qa is connected to the rotation support shaft of the flywheel 27. On the other hand, as is particularly clear from FIGS. 3 and 5, a pair of support shafts 89 extending 13L are protruded from the chassis 3 near the capstan 30a. The arm portion GJ has a pinch roller 90 rotatably attached to its free end and an arm portion GJ 91 rotatably attached thereto.

The pair of pinch rollers 90 are each detachably attached to the capstan 30a. At the free end of the arm part trA 91, there is a bottle 9 that passes through the arm member in the vertical direction.
1a, and a spring 6 for adjusting the azimuth of the magnetic head 49 is attached to the lower end of the left edge of the bottle.
6 (for example, see FIG. 5) is engaged. The arm member 91 is biased by the spring 66 in a direction in which the pinch roller 90 approaches the capstan 30a.

The capstan 30a described above, the pinch roller 90,
The reel unit 5, the idler gear 28, and peripheral small members related to these constitute a tape transport direction switching means 1, 7J that determines the tape transport direction corresponding to the two rotational angles of 1 m of the magnetic head 49. has been done.

Each bottle 91a provided at the tip of the arm member 91
The upper ends of the slide member 56 can be engaged with the front and rear ends of the slide member 56, respectively. More specifically, two notches 56c are formed at the front and rear ends of the slide member 56, each extending in the front-rear direction and facing each other.
is provided, and either one of the pins 91a of the arm member 91 can be selectively engaged in the notch 56C as the slide member 56 reciprocates.

A tapered portion 56 (1) is formed at the front edge of the open end of each notch 56c, and the bottle 91a is smoothly guided into the notch 56 by this tapered portion 56(1). When the pin 91a engages with the notch 56c, the arm member 91 rotates a predetermined amount (') toward the left, and the pinch roller 90 moves from the capstan 30a to the MIK.
It's like being forced to do something. That is, the pair of pinch rollers 90 are alternatively pulled out of the capstan 30a by the reciprocating movement of the slide member 56, which is a component of the head rotation mechanism described above.

As is particularly clear from FIG. 5, mountain-shaped protrusions 47a are formed at both left and right ends of the head stand 47 that supports the slide member 56 so that the pointed portions thereof are opposed to each other. Further, on the left side of the protrusion 47a, there is a recess, 7, continuous to the protrusion.
b is formed.

These protrusions 47a and recesses 471) are adapted to engage with a pin 30d protruding from one swinging end of the support lever 30 shown in FIG. 3, for example, when the head stand 47 moves to the right. There is. When the 111-shaped protrusion 47a engages with the bottle 30 (I), the support lever 30 swings in the direction in which the idler gear 28 attached to the support lever moves from the double gear 5f of the reel, When the fourth part 471 following the projection 47a engages with the pin 30d, the support lever 30 returns to the position where the idler gear 28 meshes with the double gear 5f.

On the other hand, at both front and rear ends of the slide member 56, there are also a pair of support levers 3 that are attached to the front and rear ends of the slide member 56.
A protrusion 560 is formed that engages with one of the bins 30d and prevents the bin from entering the four portions 47b of the head stand 47. However, each protrusion 56e engages with only one of the pair of bins 30d in accordance with the forward and backward movements of the slide portion ttA56. That is, the pair of idler gears 28 are selectively moved from the reel unit to 1IIll12I! by the reciprocating movement of the slide member 56, which is a part of the head rotation mechanism. It is designed so that it can be closed.

Next, 114% for loading cullet halves will be explained.

As shown in FIGS. 2, 6, and 12 to 14, a beam 1 chassis B95 is attached to the upper surface of the right end of the chassis 3.
is permanently installed. A rocking member A96 extending in the left-right direction is arranged on the chassis 31-, one of which is a rib member A96.
- The supporting protrusion 3 [1] provided at the left rear end of the - 895 and the I/- .

A cassette holder 98 for holding the cullet half is attached to the free end, that is, the front end, of the swinging member A96 so as to be able to swing freely at the center thereof in the front-rear direction.
Note that, for example, the position of the cullet holder 98 shown in FIG. 5 is referred to as the upper limit position of the cassette holder. The cullet half is inserted into the cassette holder 98 in this position from the direction of arrow S and held in the cassette holder. Also,
From this state, the swinging member 96 swings downward by a predetermined angle, and the position of the cassette holder 98 when the cassette half held by the cassette holder 98 is positioned at the playing position is changed to the lowered position of the cassette holder. What do you call it? The cassette holder 98 is movable between this lowered position and the above-mentioned raised position.

On the lower surface of the cassette holder 98, a movable member 101 which consists of two members, an upper surface member 99 and a right surface portion +4100, and which can engage with the cassette half is attached so as to be movable in the insertion and ejection direction of the cullet half, that is, in the front and back direction. It is being A bottle 1ooa is protruded from the right side of the right side member 100, and the bottle is slidably fitted into a long hole 95a formed in the sub-chassis B95 so as to extend in the front-rear direction.

On the other hand, a lever F10 is located at the center lower end of the Zabu chassis 95.
2 is cut out at its lower end so that it can be pivoted freely,
The upper end of the lever F is pivotally connected to the bottle 100a. A coil spring 03 is connected to the lever F102, which forces the lever in the clockwise direction in FIG. A recess 100b that sinks downward is formed in the front end of the right side member 100, and when the right side member 100 moves rearward after inserting Karen 1~Half, The swinging support shaft 98a of the holder 98 falls into this recess 1001), and the holder for the cassette 1 moves to the lowered position F.The swinging member is attached to the right end of the swinging φI member A96 as shown in FIG. A coil spring 104 is connected to the coil spring 104 to force fJ in the clockwise direction.As the moving member 101 moves in the cassette j to half insertion direction (backward), the cullet holder 98 is moved by the coil spring 103. -) is biased towards the -1 lowering position.

As is clear from FIGS. 12 and 14, the moving part 4-1
01 upper surface part 4A (31, insert 1-
A projection 990 facing the reel hole 106 of the half, and a spring member 99 (1) for urging the sea urchin curry (1) half are provided. Incidentally, the protrusion 99c is formed integrally with the one-sided abutment 99 by stamping or the like.

In this way, the protrusion 990 is integrally formed with the -L10 member 99, and in order to provide the protrusion, the upper surface part')
There is no need to remove special parts from the tA99,
The number of parts and the number of man-hours for removing f=I are reduced, and costs are reduced.

The upper surface member 99 is also formed with another protrusion 99e that engages with the force jet half in the vicinity of the reel hole 106. This protrusion 99 (!-b) is integrally formed on the upper surface member 99 by stamping, similar to the above-mentioned protrusion 99C.
-Efforts are being made to reduce Note that the protrusion 99e is
Four parts 10 called label areas formed in half
7 is engaged. In this way, by engaging the protrusion 99e with the recess provided in the capit half,
This makes the state of engagement of the protrusion 99e with the collar 1 half firm.

In addition, in this cullet deck, the power cellar 1 indicated in -
~The cassettes 1~half are inserted into the boulder 98 along its longitudinal direction. In addition, the above-mentioned control mechanism, that is, the head stand 47 is moved forward and the magnetic head 4 is
A control mechanism for rotating the cullet holder 98 is located near the deepest part of the cullet holder 98.

Next, FF operation (tape fast forward operation) and REW operation (
The machine for performing the tape winding and tufting operation will be explained below.

As shown in FIGS. 2, 3, 9, and 16, the left end of the chassis 3 is bent so as to extend downward, and this bent portion 3" A V bush chassis C111, which is also shown in Fig. M15, is fixed.A pair of longitudinal operating levers 113 and 114, which extend in the front and rear direction and are stacked vertically, are fixed to the leaf chassis C111. I've been kicked out.

The front end portions, that is, the operating end portions of each of the hand-operated levers are separated by a predetermined distance from side to side, and each operating end portion has an operating button 115.11 provided on the bottom surface of the housing 2.
6 (shown in the first diagram) is rounded. The forward movement of the longitudinal operation levers 11311 and 41= arranged at the bottom, that is, the backward movement, is intended for [F operation, and also the vertical The operating lever 114 is used for REW operation with its 11th movement.These longitudinal operating levers 113 and 114 are arranged at the tenth position of the magnetic head 49.Also, the circumferential longitudinal operating levers 113, 11/ 1 is] Ill Spring 1
18, 119 with Jζ and forward pie ska each f1
is given. As is particularly clear from FIGS. 7 and 15, on the left side of the rear end of the longitudinal operation levers 113 and 114, there is a longitudinal pin 12 protruding from the left end of the upper surface of the head stand 47.
Tapered portions 113a and 114a are formed at the upper end of the head stand to be engaged when the head stand moves to the right. In other words, when the head stand 47 is moving to the right, by pressing any of these longitudinal operation levers 113 and 114, the head stand 47 is moved to the left by a predetermined amount, thereby causing the magnetic The head 49 is separated from the magnetic tape. In addition, the head stand 47 can be adjusted for a predetermined amount by operating the longitudinal operation lever L-J.
Moved to the left = 42- When moved, the protrusion 47a formed on the head stand 47
is engaged with the pin 30 (1) of the support lever 30 holding the idler gear 28, thereby
is 1 ift from double gear 5 of reel units 1 to 5
1lf2 LIruJ is becoming a sea urchin. The story may vary, but for example, J: sea urchin shown in Figures 3 and 9.
A pair of claw members 123 are installed on the chassis 3-[- to prevent reverse rotation of the reel unit 5. When the head stand 47 moves, the left end of the head stand 47 engages and presses the claw member '123, and presses against the claw member.''
"Reel" knit! ′) Reverse rotation prevention■ [The condition is being canceled.

Returning to the original topic, as shown in FIG. 2, FIG. 3, and FIG.
On the rear end of f and on the right side, Plays 1 to 12/I are shown as "11!S1" (J) that can be moved freely in the front and rear directions. A spring 125 is connected to the plate 124, which imparts a bias in the i'+ff direction to the plate.The front end of the plate 124 is formed in a T-shape!, - Lever 1-112
6 is rotatably attached at its center. In particular, as is clear from FIG. 16, the lever N 126
The rear edge of a protrusion 113C extending downward and projecting from the longitudinal operation lever 113 is brought into contact with the front edge of the first end 126a which is formed in the first end 126a and extends downward. Further, at the front edge of the second end 126b formed on the lever 1126 and extending upwardly, another longitudinal operating lever 11 is provided.
4, the rear edge of the protrusion 114c extending substantially to the left is brought into contact with the rear edge of the protrusion 114c.By pressing the longitudinal operation levers 113 and 114, respectively, the lever H126 is moved as shown in FIG. () The opposite part rotates in one direction and clockwise.

A lever 1129 formed in a substantially dogleg shape is arranged in front of the play plate 124, and is rotatably attached to the left bent part 3 of the seat plate 3 at its center bent part. A bottle 129b is provided protruding from the tip of a first end 129a formed on the lever 1129 and extending rearward, and this bottle 129b is attached to the lever 1-112.
The third end portion 126G is formed in the third end portion 126G and is movably fitted into a long hole 126d formed in the third end portion 126G. Further, the second end 129G of the lever 1129 is directed downward (l).
It is growing.

2, 3, 10, and 16 (as shown, the swing lever 130 is disposed extending in the left-right direction at a position where it is sandwiched between a pair of reel units 5 and a flywheel 27, respectively) The bottle 130a is located approximately in the center of the bottle 130a.
It is rotatably housed in the shaft V and the shaft 3 through the angle [J]. The left end of the swing lever 130 is pivotally attached to the tip of the second end 129C of the lever 129. Furthermore, a gear train 135 consisting of three gears 132, 133, and 134 meshing in series is provided on the lower surface of the right end of the swing lever 130. The first stage gear 132 of the gear transmission mechanism can mesh with each gear portion 27a of the pair of flywheels 27, and the final stage gear 1"113.
4 meshes with a small diameter gear portion formed on the double gear 5f of the reel unit 5. When the operation levers 113 and 114 are pushed, respectively, the swing lever 130 swings backward and forward via the lever +1126, thereby allowing the swing lever 130 to swing backward and forward. The reel units 5 that have been rotated are alternatively rotated at high speed.

As shown in FIGS. 2, 7, 15, and 16, the sub-chassis 1111 that holds the longitudinal operating levers 113 and 114 has two arms arranged parallel to the pitcher operating levers and An intermediate lever 138 is provided that can reciprocate in the direction of movement of the manual lever (back and forth direction). A coil spring 139 is connected to the intermediate lever 138 for imparting a forward bias to the intermediate lever. As is particularly clear from FIG. 15, a bin 138a is protruded from the lower surface of the rear end of the intermediate lever 138, and the bin 138a corresponds to the longitudinal operating lever 11.
3,114, a long hole 140 is formed extending in the front-rear direction.
is slidably engaged with. A recess 140a into which a bottle 138a is inserted is formed on the right end side of the central portion of the elongated hole 140. Here, the intermediate lever 138 can swing by a predetermined angle about a support shaft 1381 on its front end side. :l: /ko, The coil spring 139 that forces the intermediate lever 138 forward is stretched so as to be inclined to the right from the rear to the front.
As a result, the intermediate lever 138 is connected to the support shaft 1381).
In contrast to Fig. 15 with t as the center, i=
There are a lot of J's. That is, both branch hand operation levers 113,
114 are simultaneously moved forward (move backward), the pin 138a of the intermediate lever 138 fits into the recess 140a of the elongated hole 140, thereby causing the intermediate lever 138 to move rearward. However, if only one of the pair of longitudinal operating levers 113 and 114 is moved, the rear right edge 140b of the elongated hole 140 formed in the other longitudinal operating lever is Since it is still in contact with the bottle 138a, the intermediate lever 138
There is no forward movement (movement backward).

Although not detailed, [Longitudinal operation lever 1 for F operation]
When either one of the longitudinal operating levers 13 and 114 is moved forward, a mechanism is provided that switches the operating lever to the forward position. Further, when the other longitudinal operating lever is moved and tightened, the locking mechanism locks the longitudinal operating lever in the forward movement position, and unlocks one of the longitudinal operating levers. When either of the longitudinal operation levers 113, 114 is pressed, a
] The lever J142 is swung clockwise in FIG. 15 to operate the mute switch 143.

For example, as is clear from FIGS. 2 and 7, a bottle 138d is protruded from the upper surface of the rear end of the intermediate lever 138, and the bottle 138d is attached to the left end of the swinging member 96 (for example, shown in FIG. 6). 96a.

By moving forward, this intermediate lever 138 presses the swinging member 96 backward, and moves the cassette holder 98, which is in the lower position at the time described above, to the upper limit position1! It is meant for reading.

Next, in addition to the mute switch 143, various switches numbered "J" and their arrangement will be explained.

As is clear from FIGS. 2 and 6, the rib chassis 8
A bracket I-146 is marked on the right end surface of the bracket 95, and two switches 147 are attached to the bracket I-146.
．． 1=18 is taken and ζ1() is C. switch 1/
I7 is for switching the power supply to the deck 1 and the tuner disposed near the deck 1. Further, the switch 148 is for operating the motor 24. Both switches 147 and 14
8 are both mechanically actuated after loading the cassette halves into the load bolt 98.

As shown in FIGS. 2, 7, and 18, a switch 149 for switching W between 1=" and 1? is fixed on the front surface of the left end of the sub-chassis A11. This switch 149 is operated by the engagement of the moving plate 52 which is attached to the rib chassis A.

Further, as shown in FIG. 15, the sub-chassis 111
A switch 150 for cutting off the power supply to the cassette deck is fixed on the top (I!;), and this switch is activated when the intermediate lever 138 is moved forward (moved backward) and retracted. Ru.

The operation of the cassette 1-deck configured as described above is summarized in the operating procedure with reference to FIGS. 19 to 26.
Explain.

First, insert the cassette half 155 (shown in FIG. 19) from the first part 2a of the housing 2 shown in FIG.
The cassette half is held in a cassette holder 98 as shown in FIGS. 9 to 21. As shown in FIG. 20, the right side member 100 moves rearward as the force [Ara 1-half 155 is inserted into the cassette holder 98, and this causes the swing support shaft 98a of the cassette holder 98 to move toward the right side. Successful bid included in recess 100b of member 100/
At υ, the cassette holder is moved to the lowered position.

Therefore, the cassette half is let into the playing position.

With this operation of inserting cassettes I to half, switches 147 and 148 shown in FIG. 6, for example, are operated, the power is turned on to the cullet deck, and the motor 24 starts rotating. When the motor 24 rotates d, as shown in FIG. 10, the small pulley 24a moves in the direction of arrow M, the pulley 23 moves in the direction of arrow "ON," and the pair of front and rear flywheels move in the directions of arrows O and P, respectively. Therefore, the pair of reel units 1 to 5 are rotated in the directions of arrows Q and R through the pair of idler gears 28, respectively.
10), the rotation begins. In this way, since the pair of reel units 5 rotate in opposite directions, slack in the magnetic tape in the cassettes 1 to 15 is wound up.

When the slack in the magnetic tape is wound up and a predetermined tension is applied to the magnetic tape, a double gear 5) is inserted at the back of the constituent members of the reel unit l-5 shown in FIG.
All the members except the tension horn are fixed by the reaction force of the tension horn, and only the double gear 5' continues to idle against these fixed members via Nord 4 and +511. ().Therefore, the magnetic tape (1) is not transported with tension applied to it.

On the other hand, the end detection gear 14 shown in FIGS. 7 and 18, for example, is activated by the rotation of the motor 24, and
0 in the direction opposite to the cutting direction in FIG. Therefore, the bin 10b protruding from the end detection lever 10 is moved to the top of the mountain-like protrusion 1/Ib of the end detection gear 14 as the end detection gear 14 rotates. Here, as is clear from the above, the arms 51 of each reel unit 1 to 5 are at rest. Therefore, the intermediate lever 7 is not activated, and the bin 101) of the end detection lever 10 does not continue to rotate along the mountain-shaped protrusion 14b. Therefore, the pin 10b of the end detection lever 10 comes to rest at the top position of the mountain-like protrusion 14b, so that the protrusion 14C of the end detection gear 14 engages with the pin 101). Therefore, the end detection lever 10 moves upward, and the star 1 trigger lever 73 is moved to the 18th lever via the lever 12.
When it comes down to the figure, the bar rotates in one direction. is < L -71-
, because the pin 33a was engaged with one end of the start trigger lever 73, the first tooth 33, whose rotation was restricted, became able to rotate, and the f1 force of the coil spring 35 caused the first tooth 33 to rotate. It is rotated clockwise in Fig. 18. Then, the partial tooth portion 33b of the first wheel 33 meshes with the gear 16, and the first gear starts rotating (1). 1st
The control plate 3 shown in FIG. 17 etc. by the rotation of the gear 33
9 is moved to the left, so the head stand/17 is moved to the right as shown in FIG. 22, and the magnetic head 49 comes into contact with the magnetic tape. When the control plate 39 reaches the maximum forward movement position @ (leftward movement limit position), the engagement recess 69a of the prohibition lever 69 engages with the pin 39e protruding from the control plate. ) Tezo's return movement (movement to the right) is prohibited.
Two is done. As the first gear 33 rotates, the moving member 81 also shown in FIG. 17 and the like is also moved to the left as shown in FIG. 23. Accordingly, the lever [83] rotates in the direction as shown in FIG. 23, and the movable [1] lever 86a of the electromagnetic solenoid 86, which is already in the ON state, is pushed in. As a result of this operation, the pin 83C of the lever [83] comes to engage with the recess 39h formed at the right end of the control plate 39.
It is possible to move to the rightward movement limit position by 4T. :1:
In addition, the control plate 39 is attached to the engagement recess 69a of the prohibition lever 69.
When the bottle 39e enters, the prohibition lever 69
rotates by a predetermined amount tJ in the time t1 direction as shown in FIG.
The mute switch 143, which had been kept in the on state via the switch (see figure), is turned off.

On the other hand, as shown in FIG. 22, as the head stand 47 moves to the right, the front idler gear
The double gear 5f of the Nitsu i-5 is disengaged, and only the rear reel unit 5 is rotated. Note that this operation depends on the interaction between the protrusion 47a and the fourth part 471) formed on the head stand 47 and the protrusion 56e provided on the slide member 56, but it was explained in detail in the previous explanation of the configuration, so it will not be explained here. Let me explain in detail. Further, as shown in FIG. 22, as the head stand 47 moves to the right, the rear pinch roller 90 comes into contact with the capstan 30a, and the front bin [l-ra] 90 is held in the ml till l state (J I-1) from the corresponding capstan.
- A pin 91 protruding from an arm member 91 that supports the frame 90
It is J that there are 11rj people in the notch 56c of the slide part +456. Similarly, as shown in FIG. 22, by moving the head stand 47 to the right, the pair of claws 4123 that were engaged with the reel unit 5 are disengaged from the reel unit.

In this way, the tape transport to the FWD side is started, and the fastening on the FWD side is performed.

Next, the operation of switching from FWD-side playback to REV-side playback will be explained.

When the switch for switching the tape feeding direction is pressed, the electromagnetic solenoid 77 is turned off and the movable rod 77a of the electromagnetic solenoid is pulled. Therefore, the start trigger lever 7 is activated via the magnetic head switching command rod 75.
3 rotates in the cutting direction in FIG. As a result, the first wheel 33, whose rotation was restricted by the starter T-trigger lever, becomes rotatable, and is rotated clockwise in FIG. 18 by the biasing force of the coil spring 35. Therefore, the partial tooth portion 33 of the first gear 33
b meshes with gear 16, and the first gear begins to rotate. Immediately after the first gear 33 starts rotating, the protrusion 33f protruding from the first gear engages with the engagement protrusion 691 of the prohibition lever 69 (see FIG. 17), and the prohibition lever is moved as shown in FIG. Rotate counterclockwise at . When it is covered, the engagement state between the engagement recess 69a of the lever 11 and the pin 39e of the control plate 39 is released, and the control plate 39 is disengaged from the coil spring 40.
The biasing force causes the movement to instantly return to the most backward movement position (rightward movement limit position). When the control plate 39 returns to the most backward movement position, the head stand 47 moves to the left, and the magnetic head 49 is moved away from the magnetic tape.

When the control plate 39 is in the forward movement position (leftward movement limit position), the stop pin 34a is engaged with the regulating portion 39 (1 (for example, shown in the fourth figure) formed on the control plate,
Rotation of the second wheel 34 is restricted. By returning the control plate 39 to the above-mentioned most backward movement position, the -7111 control is released, and for example, due to the action of the claw part +A51a and the spring member 51b shown in FIG. The second gear 34 is rotated u in the h1 direction in FIG. Therefore, the toothed portion of the second gear 34 meshes with the gear 18, and the second gear begins to rotate. To the rotation of this 21'a wheel 34'';
Then, the stop pin 34a protruding from the second gear engages with the claw portion 52a of the moving plate 52, and the moving plate is moved to the left, and the magnetic head 49 connected to the moving plate is moved to the REV side. 5, which is rotated 180° to
Switch 14 with Jζ to move left in movement play 1-52
9 is switched from the FWD side to the REV side.

By the rotation of the second south wheel 34, the second south wheel s1~
The knob pin 34a is attached to a projection 39C (
17, etc.), and the control plate is moved a predetermined distance to the stop bin 7j. When the second gear 34 completes 1flO' rotation, the stop bin 3 =la is separated from the protrusion 39c of the control 1211 plate 39, but then the pin 3 of the first gear 33
3a engages with the protrusion 39a of the control plate 39, and the control plate 39 is moved to the forwardmost position (leftward movement limit position) and locked by the prohibition lever 69 as described above.

As the control plate 39 moves forward, the head stand/47 moves to the right again, and the magnetic head 49 comes into contact with the magnetic disk. Furthermore, the Micoat switch 143 is also turned off in the same manner as described above.

Further, the slide member 56 is moved to the previous position by the leftward movement of the moving plate 52, and as a result, the head stand 47 is moved to the right and the rear idler gear 28 is moved from the reel unit 5 to 11B2 t! As a result, the front idler gear 28 is engaged with the reel unit 5, and only the front reel unit 5 starts rotating. Further, the front pinch roller 90 is brought into contact with the capstan 30a, and the rear pinch roller 90 is moved from the capstan 30a to li! It is held in a state where it is removed.

In this way, the tape transport direction is switched from the FWD side to the RFV-58= side.In addition, regarding the operation of switching the tape transport direction from the REV side to the FWl) side, the stop pin 341) of the second gear 34 is moved from the moving plate. 1 to 52 claw portion 5211 (18th
The operation of switching the tape transport direction from the FWD side to the REV side will not be described in detail except for the point that the moving plate is moved to the right by engaging the moving plate (shown in the figure).

Next, the operation of the mechanism that automatically switches the tape transport direction will be explained.

For example, "When the tape transport to the WD side is completed, a predetermined tension is applied to the magnetic tape at the terminal end, and the double gear 5[
All members except for the tension are fixed by the tension. Therefore, only the double gear 5f continues to idle (-J) with respect to the fixed parts 44 group via the felt plate 511. [When the tape is being transported to the WD side, the fixed parts Arm member 51
It is rotating except for. Further, the arm member 51 receives a force "f" caused by the rotational force, and urges the intermediate lever 7 via the floating lever 8 in the opposite direction R1 (d31) in FIG. 22. As a result, the end detection lever 101 to which the rear end of the intermediate lever is pivoted is rotated (=1 force) in the opposite direction 81 in FIG. It rotates while abutting against the mountain-like protrusion 14.b of the detection gear 1/I, and the protrusion 14c of the end detection gear does not engage with the bin 10b.However, of the reel units 5, except for the double gear 5f. When the tape stops and the member group becomes fixed, the force urging the end detection lever 10 also disappears, and the protrusion 14c of the end detection gear 14 moves to the pin 101 of the end detection lever.
4. Accordingly, the rr-end detection lever 10 moves upward, and the 1-register lever 73 rotates toward the star 1 via the lever AI2 in the cutting direction as shown in FIG. The following is the "W [] side → R side" by pressing the switch mentioned above.
The tape transport direction is switched by exactly the same operation as the switching operation of the tape transport direction to the EV side. In addition,
The automatic switching of the tape transport direction from the REV side to the FWD side is described above in the same manner as the IJ operation, and will not be described in detail.

Next, the [F operation (tape fast forward operation) and [<1-W operation (tape rewind operation)] will be explained in 8:1.

For example, if there are 11 F operations,
As shown in FIGS. 24 and 25, F F ! Press the longitudinal operation lever 113 of II action (move backward 1!).

Then, the mute switch 14 is activated via the lever J142.
3 is turned on. Further, the longitudinal bottle 121 protruding from the left end of the head stand 47 is pushed to the left by the tapered portion 113a of the longitudinal operation lever 113, and as a result, the head stand 47 is moved to the left by a predetermined amount. However, the contact between the magnetic head 49 and the magnetic tape is loosened.

As is clear from FIG. 25, the longitudinal lever f'1 lever 11
3, the protrusion 113 of the longitudinal operating lever
The lever 1126 engaged with C is swung counterclockwise in FIG. 25. Therefore, the lever 1129 similarly swings clockwise in FIG. 25, and as a result, the 1-position lever 130 pivots counterclockwise in FIG. 26 about the bin 130a as shown in FIG. -ru. Therefore, the first stage gear 132 of the gear transmission mechanism 135 installed on the swing lever meshes with the gear portion 27a of the rear flywheel 27, and the final stage gear 134
meshes with the small diameter gear portion of the double gear 5f of the rear reel unit 5. On the other hand, by moving the head stand 47 to the left by pushing the longitudinal operation lever 113, the pair of idler gears 28 are removed from the reel 2+-5. Therefore, the rear reel unit 5 rotates at high speed, and the tape is rapidly forwarded.

When performing the REW operation, this is done by pushing down the RIEW operation operator control lever 114. That is, the protrusion 114G of the longitudinal operation lever 114 is connected to the lever H1.
26 and the second end 126b of the lever is engaged with the second end 126b of the
The first gear 1 is rotated clockwise in FIG.
32 and final stage gear 134 mesh with the front flywheel 27 and reel unit, respectively. In addition, when the heads are moved in the direction of 470 degrees, the tapered portion 114a of the longitudinal operation lever 114 is connected to the longitudinal pin 12 provided on the head stand 47.
1 by engaging J.

When the tape playback is finished and you want to play the cullet half, use the longitudinal operation lever 113 with FF1l+J+ action.
Simultaneously press the longitudinal operation lever 114 for W operation.
! Bye. By pressing the two longitudinal operation levers simultaneously, the intermediate lever 138 (for example, shown in FIG. 24) is
5 of the intermediate lever (the pin 138d protruding from the upper surface of the end engages with the left end of the swinging member 96 (for example, shown in FIG. 6)) 5 When the cullet half is loaded and the knife is moved in the exact opposite direction, the cullet half is projected into the retrieval position by the listener. Also,
For example, since the switch 150 shown in FIG. 24 also operates, the electromagnetic solenoid 8 (j (see FIG. 23) is turned off, and the lever [83 shown in FIG. 17) is turned off. I can't return 1u to the state.^9
, the pin 830 provided on the lever [83
It becomes possible to engage with a convex portion 390 formed on the right end portion of. As a result, the return of the control plate 39 to the most backward movement position (rightward movement limit position) is prohibited.

That is, the stop pin 34a of the second gear 34 is kept engaged with the restriction portion 39d of the control plate 39, and the second gear 34 does not rotate when the power is turned on again. This prevents unnecessary switching of the tape transport direction.

As mentioned above, the operation A of the electromagnetic solenoid 86 is also performed when the key of the automobile in which the cassette deck is mounted is turned off.

Effects of the Invention As detailed above, in the cullet deck according to the present invention, the first gear (33) is used to move the movable head stand (47) back and forth in the direction substantially perpendicular to the tape transport direction. a second gear (3) for rotating a magnetic head (49) rotatably provided around an axis substantially parallel to the moving direction of the head stand;
4), and the first gear and the second south wheel have a rotating mechanism N including a single drive source (seventer 24).
The rotational force J is applied to the means J. Therefore, in a cassette deck, two or more drive sources are used to carry out the return operation for attaching the magnetic head to the magnetic chain 71:182 and the rotation operation of the magnetic head to match the forward and reverse running of the magnetic tape. Karen 1 compared to 1
This makes it easier to downsize the deck as a whole and reduce the amount of space it takes.

Further, in the Karen 1-deck according to the present invention, the rotational force imparting means includes a gear transmission mechanism that meshes with the first gear and the second gear, and after the first gear meshes with the gear transmission mechanism, 2nd f! The JJ wheel is brought into engagement with the gear transmission mechanism, and a 1-trigger means is provided.Therefore, when the head stand moves 1 step, the magnetic head is completely l!1ltlR from the magnetic tape, and then the The magnetic head rotates and the magnetic tape is not damaged or noise is generated.

Furthermore, in Karen 1 to Detsu 1 according to the present invention, one end is engaged with the first gear (33) and the other end is an end detection lever of a tape end detection mechanism = 65 = (10) Star mill trigger lever (73) that can be engaged with
, a magnetic head switching command rod (75) that can engage a part of the start trigger lever, an electromagnetic solenoid (77) that drives the magnetic head switching command rod, and a switch for activating and closing the electromagnetic solenoid. Therefore, the tape playback direction can be manually reversed, and the electromagnetic solenoid etc. are compactly arranged near the gear transmission mechanism.
There is no increase in the size of the cullet deck due to the provision of the electromagnetic solenoid.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a cassette deck according to the present invention, not showing the entirety; FIG. 2 is an exploded perspective view of the internal structure of the cassette deck; FIGS. 3 to 8 are partial detailed perspective views of the internal structure;
9 and 10 are respectively a plan view and a rear view of the internal structure, FIGS. 11 to 18 are diagrams that do not show details of the internal structure, and FIGS. 19 to 26 are views of the operation of the cassette deck. FIG. 66- Explanation of the symbols of the main parts 1... Karen 1 ~ Detsu: V 2...
Hatonoging 2a... Frontage part 3.
...C11-C3a, 3f...Bending portion 3c, 5m, 56;, 95a, 126 (L140...
...Elongated hole 3d...Support protrusion 5...Reel conite 5a...Rotation shaft 5b...
Reel 5C...) J Ra 5d...
・Bushiko 5e... Expanded diameter part 5f...
・Double gear 50.5 Q, 30b, 35, 40. /l
1゜60.70, 76.82, 84, 103゜104
．． 118, 119, 125, 139... ; Coil spring 51)... Full 1- Hand side 51...
...Arms 5j, 5k...Washer 7...Intermediate levers 7a, 8a, 8b, 10b, 30d, 3'3a. 39 (3, 44a, 7'7b, 83c, 86b. 91a, 100a, 129b, 130a. 138a, 138d... Bin 7b, 64a... Opening 7c, 55c... ...Notch portion 8...Idle lever 10...End detection lever 10a, 14c, 33f, 39a, 39b. 39c, 42a, 47a, 49a, 56e. 81a, 99c, 99e, 113c 114C... Protrusion 11... Nabushi 11-shi △ 12... Lever A 14... End detection gears 14a, 39h, 47b, 100b. 140a. ...Convex portion 14b...Protrusion 16.17, 18, 19, 61, 132°133.13
4...Gear 20,. 135...Gear transmission mechanism 22...
...Worm 23...Pulley 24...
...Motor 24a...Small pulley 25...
... Belt 27 ... Flywheels 27a, 27b ... Gear section 28 ... Idler gear 30 ... Support lever 3 Q a ...・Capstan 33・
...First gear 331) ... Partial southern part 33c, 33d, 34c, 34d ... Missing tooth portion 3
4... Second gears 34a, 34b... Stop bin 36.124
...Plate 39...Control board 39d...
Regulation part 39Q... Convex part 42...
...Lever B44...Lever C717...
...Head stand 49...Magnetic head 51a2.123...Claw members 51b, 99d...Spring member 52...Movement plates 52a, 52b... ...Claw portion 53...Lever D54, '66...Spring 56...
...Slide member 5 (ll, 113a, 114a...Tapered portion 57...Bearing member 59...Fan-shaped gear 64...Regulation member 65... ...
Screw 69...Prohibition lever 69a...
・Engagement recess 69b...Engagement protrusion 73...Start trigger lever 73a...
...One end portion 73b, 83b, 126b, 29c...Second
End portion 75...Magnetic head switching command rod 77.86
......Electromagnetic solenoids 77a, 86a...
・Movable Ron door 9... Operation switch group 81.
...Movement member 83...Lever 83a, 126a, 129a...First end 89
．． 138b...Support shaft 90...Pinch roller 91...Arm member 95...1)-Bush chassis B 96...Swivel member 96a・・・・・・
Left end portion 98...Cullet holder 98a...
... Swinging support shaft 99 ..., 1 side part +J
100... Right side part 101... Moving part (Δ 102... Lever F2O3...
... Reel hole 107 ... Concavity 11
1...Ribshi F)-shi C1 13,11=1...Longitudinal operation lever 115.1
16...Operating button 121...J (hand bottle 124a...Top protrusion 126...
... Lever 1-1 129 ... Lever 11
30... Swinging lever 138... Intermediate lever 140b... Rear right edge 14 2... Levy J

Claims (1)

[Claims] a head stand that is reciprocally movable in a direction substantially perpendicular to the tape transport direction; and a head stand that is provided on the head stand so as to be rotatable between two angular positions about an axis that is substantially parallel to the moving direction of the head stand. a magnetic head; a tape transport direction switching means for determining a tape transport direction corresponding to the angular position of the magnetic head; a head stand drive mechanism including a first gear that reciprocates the head stand by rotation; A head rotation mechanism including a second gear that rotates the magnetic head, and a gear transmission mechanism that can mesh with the first and second gears to apply rotational force from a single drive source to the first and second gears. a tape end detection mechanism that rotates an end detection lever to the right and detects the tape end, one end of which can be engaged with the first gear and the other end of which can be engaged with the end detection lever. a start trigger lever, and after the first gear is engaged with the gear transmission mechanism, the second gear is engaged with the gear transmission mechanism.
Trigger means is provided for causing the gear to mesh with the gear transmission mechanism, and the trigger means is provided so as to be able to reciprocate between a most forward position and a most backward position, and is moved back and forth by rotation of the first gear. a control plate formed with a regulating portion that engages with the second gear to restrict rotation of the second gear when the second gear is moved and is not at the most backward movement position; and a control plate that is attached in the backward movement direction. and a prohibiting means configured to prohibit the backward movement of the control plate when the control plate reaches the forwardmost position and to release the prohibition by the initial movement of the first tooth width. , a magnetic head switching command rod capable of engaging a part of the start trigger lever, and a biasing means for biasing the first and second gears in a direction to mesh with the gear transmission mechanism; A cassette deck comprising: an electromagnetic solenoid for driving a head switching command rod; and a switching command switch for activating the electromagnetic solenoid.