JPS6182363A - Cassette deck - Google Patents

Abstract

PURPOSE:To attain miniaturization as a whole and cost reduction by adopting the constitution that an intermediate lever is engaged directly with a cassette holder when a couple of long operating levers are reciprocated at the same time. CONSTITUTION:In depressing simultaneously an FF operation long operation lever 113 and a REW operation long operation lever 114, the intermediate lever 138 is moved backward and a pin 138d projected to the upper face of the rear end of the lever 138 is engaged with a shaking member. Then the number of components is less by the link mechanism than that of the form where the reciprocating operation of the intermediate lever is delivered to the cassette holder via a link mechanism, and the miniaturization as the entire cassette deck and cost reduction are attained.

Description

[Detailed description of the invention] 1 milk 11 The present invention relates to cullet decks.

In recent years, the frontal technique Nokoset Detsuki has become popular. There is a trend towards miniaturization of L-11, especially for in-vehicle use.
There is a strong demand for miniaturization.

The cassette deck is equipped with a cassette loading mechanism.
Kazen 1-Detsuki's cassette g proposed as 843
There are some things, such as cassettes 1 to 4, that contribute to the miniaturization of cassettes 1-4. The loading mechanism into the relevant cassette 1 clicks 1.
Inserting the cassette half by engaging the cassette half
a movable member movable in the t direction; a bias means for applying a bias force to the movable member in the υ1 output direction; a raised position for holding the inserted cassette half; and positioning of the held cassette half at a playing position. A set that is movable between the lowered position and the lowered position and is biased toward the lowered position by movement of the movable member in the insertion direction.
It has a holder.

In the cassette loading mechanism configured in this way, a3 has the following features:
By moving the cassette holder in a direction 14 opposite to the biasing direction, the cassette half is returned to the position before the cullet insertion by the bias means together with the moving member, and an ejecting operation is performed.

In the cullet deck that has already been proposed, no operating lever is specifically provided for causing this eject operation, but instead, a pair of longitudinal operating levers for performing the FF operation and the REW operation are moved forward at the same time. Next, an intermediate lever that moves forward together with each of these longitudinal operation levers is installed, and the above-mentioned force 1? is applied by the forward movement of the intermediate lever.
1 to 7 holders? Many of them are constructed so that they can be returned to their original positions. However, in the cassette deck 1 that has already been proposed, the 11-movement of this intermediate lever is transmitted to the cassette holder via a link mechanism, etc., and the link mechanism has many parts. This was an issue to be solved in order to reduce the overall size and cost to 1.

Summary of the Invention The present invention has been made in view of the above points, and includes:
The first objective is to provide a cassette deck that is easy to downsize as a whole and has a low cost per Tl.

The cullet deck according to the present invention has a force of 1'! This is a cullet deck of the type in which a cut half is inserted in the longitudinal direction, and includes a movable member that engages with the cassette half and is movable in the insertion direction of the cassette half; a biasing means for applying a bias force to the movable member; and a biasing means that is movable between a raised position in which the inserted cassette half is held and a lowered position in which the held cassette half is positioned at a playing position, and in which the movable member is moved in the insertion direction. a cassette holder that is biased towards the lowered position by movement; a pair of longitudinal operating levers that are provided so as to be reciprocally movable and that operate to move and rewind when the cassette holder moves back and forth;
The pair of longitudinal operating levers are provided so as to be able to reciprocate in the moving direction, and when the pair of longitudinal operating levers are simultaneously moved forward, the levers move forward to move the cassette holder to the upper gear. and an intermediate lever for moving into position;
The longitudinal operation lever and the intermediate lever are arranged above the magnetic head, and the intermediate lever is configured to directly engage with the cassette holder.

EXAMPLE Hereinafter, a cullet deck as an example of the present invention will be explained with reference to the accompanying drawings.

In the figure, reference numeral 1 indicates the entire cassette deck.

As shown in Fig. 1, the front part of the housing 2 has a rectangular and horizontally elongated slot for inserting and pulling out a cassette half (described later).
110 copy 2a is listed. (Ell), the forward direction here refers to the direction indicated by the arrow Y in the figure, and the left-right direction refers to the ntt direction. Therefore, the arrow x direction is to the left, and the arrow Z direction is to the left.

As shown in FIGS. 2 and 3, as well as FIGS. 9 and 10, in the housing 2 there is a step 3 made of a steel plate or the like. As shown in FIG. 4, a pair of reel units 1 to 5 are arranged side by side in the front-rear direction on the chassis 3, and one reel unit is rotatably attached to the chassis. As is clear from Figure 11,
The reel units 1 to 5 have a rotating shaft 5a fixed to the chassis 3. A reel 5b is rotatably fitted onto the rotation support shaft 5a. A collar 5C and a bush 5d are fitted to the upper and lower ends of the reel 5b, respectively. The collar 50 can be fitted into a cassette reel which is housed in the -F cullet half and is wound with magnetic tape. At the center of the reel 5b, there is an enlarged-diameter portion 5 having an enlarged diameter in the shape of a disc.
A double gear 5r having two large and small gear parts is arranged between the enlarged diameter part and the bush 5d, and a rotation support shaft 5
It is rotatably attached to a.

A coil spring 5g is interposed between the double gear 5 and the bush 5d to urge the double gear and the bush away from each other. Further, a felt plate 5h is provided between the enlarged diameter portion 5e of the reel 5b and the double gear 5f. The Fermil plate 5h is attached to the enlarged diameter portion 5e, and is movably abutted on the double gear 5[. An arm 51 is provided 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 5b. The lower and upper surfaces of the arm 51 are connected to the enlarged diameter portion 5e of the reel 5b and the collar 5C.
A coil spring 5Q is disposed between the upper washer 175 and the arm 51 to bias the arm downward. There is.

As shown in FIG. 2, FIG. 3, FIG. 9, and FIG.
It is arranged to extend in the j direction, and is rotatably attached to the chassis 3 by an old tube 7a within a 41 plane parallel to the main surface of the chassis. A rectangular opening 7b is formed at the front end of the intermediate lever 7, and a floating lever 8 (numbered F) that is freely movable on the chassis 3-1- projects into the opening. installed bin 8alJ<itI
It is fitted.

The floating lever 8 has a bottle 8b protruding from both ends thereof, and each bottle is slidably engaged in a long hole 5n+ formed at the free end of the arm 51 of the reel unit 5. ing. As shown in FIGS. 7 and 18, an end detection lever 10 is disposed near the rear end of the intermediate lever 7. As shown in FIGS. This end detection lever 10 is connected to a sub-chassis A that is fixed to the upper surface of the rear end of the chassis 3 and protrudes upward.
A lever A 12 is rotatably mounted on the lever A 11, and the right end of the lever A in this case is provided with a pivot angle at its upper end. End detection lever 10
A projection 10a extending downward is provided at the lower end of the intermediate lever 7, and the projection 10a is connected to a notch 7 formed at the rear end of the intermediate lever 7.
It is slidably engaged with C.

As shown in FIGS. 7, 9, and 18, a bottle 10b is protruded from the rear surface of the lower end of the end detection lever 10, and the bottle is rotatably attached to the leaf chassis 8. and is engaged with an end detection gear 14 facing the rear end surface of the end detection lever 10. Figure 7 and 1
As is clear from FIG. 8, four portions 14a are formed on the surface of the end detection gear 14 facing the end detection lever 10.
Three substantially mountain-shaped protrusions 14b having the same shape and projecting in the radial direction of the end detection lever are provided on the circumferential side of the recess at a pitch of 1200. Further, each of the above-mentioned mountain-shaped protrusions 14 is provided at the center of the four parts 14a. Towards the valley between b (
), three protrusions 14c each having the same shape and extending radially are formed. When a circle circumscribing the top of each protrusion 14b and a circle inside one white part of each protrusion 14c are imagined, the diameters of these diameters are approximately the same month.

The bottle 101) protrudingly provided on the end detection lever 10 can engage with these protrusions 1/lb and 1/IC.

The above-described reel II units 1 to 5, intermediate lever 7, floating lever 8, etc., end detection lever 10, and end detection
A part of a tape end detection mechanism for detecting the end of the magnetic tape being played is formed in 1''-A1/I.

2, 7, 9, and 18, there are four gears 16 meshing in series on the rear surface of the cylinder 11 and to the left of the C end detection gear 14. ,17
．． A gear transmission mechanism 20 consisting of gear transmission mechanisms 18 and 19 is provided, and the end detection gear 14 meshes with the final stage gear 19 of the gear transmission mechanism. As shown in FIG. 18, the first stage gear 16 of the gear transmission mechanism 20 (however, the reference numeral 20 is not shown in FIG. 18) is a 1J-1 chassis A11.
It is rotatably engaged with the A-arm 22, which is numbered. A pulley 23h is integrally formed at the lower end of the worm 22. As shown in FIG. 10, the pulley 23 is arranged at the right rear end of the chassis 3 and
4, it is rotationally driven via bells 1 to 25. Note that the belt 25 is directly wound around a small pulley 24a fitted to the output shaft of the motor 24.

As is clear from FIG. 10, the bells 1 to 25 are also rotated by a pair of flywheels 27 that are rotatably provided on the lower surface of the chassis 3, arranged one behind the other. however,
The direction of rotation of the motor 24 is in the direction of arrow M, which is the forward rotation direction, and the pulley 23 is always rotated in the direction of arrow N, and the pair of flywheels 27 are always rotated in the direction of arrows O and P, respectively. Belt 25 has been turned.

The flywheel 27 has gear portions 27a and 271) of different sizes on its outer and inner circumferences. Of the two large and small gear parts formed on the flywheel 27, the smaller gear part 27h engages with the large diameter gear part of the double gear 5f of the reel 1-'5 through the pair of idler gears 28 after 6i+. It's being done all over the world. As is clear from FIGS. 2, 3, and 9, the idler gear 28 is
The shaft part +A30a is installed in the shaft part +A30a to be able to swing freely ('
, is rotatably attached to one end of the swinging support lever 30, and is attached to and detached from the double gear 5 of the reel unit 5 by the swinging of the support lever. . Further, the support lever 30 is biased by a coil spring 301 in a direction in which the idler gear 28 approaches the double gear 5f.

The rear surface of the 1-knob chassis A11 shown in FIGS. 2, 7, 9, and 18 has a gear 16 or
9, a first gear 33 and a second gear 31 are rotatably mounted. The first gear 33 meshes with the gear 16 of the south-center transmission mechanism 20 (for example, see FIG. 7), and the second gear 34 meshes with the gear 18 of the gear transmission mechanism.

Here, the gear transmission mechanism 20 mentioned in 1-, the gear transmission mechanism 22,
By means of the boolean 23 and the belt 25 etc.,
A rotational force 4J"j mechanism is constructed in which the rotational force from the Tanabata 24 as a single drive source is M'4J in the tooth center 33 and the second gear 34. The applying mechanism and the motor 24 constitute a rotational force applying means that rotationally drives the first gear 33 and the second gear 34.

The first gear 33 is for reciprocating a head stand, which will be described later. First, a structure for connecting the first gear and the head stand will be described.

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 pin urges the first gear 33 in the horizontal direction in FIG. ] One end of the spring 35 is hung. The other end of the coil spring 35 is hooked onto a plate 36 fixed to the tip of the rotation support shaft (not shown) of the gears 16 and 18.

As shown in FIG. 2, FIG. 3, FIG. 9, and FIG. 11, a bent portion extends upward in parallel to the rear end of the chassis 3, that is, the rear of the sub-chassis A11, and in parallel with the sub-chassis A11. 3a
is formed. - As shown in FIG. 4, a control plate 39 made of a rope plate is provided on the front surface of the bent portion 3a so as to be movable in the left-right direction. control board 39
The movement limit position of t in the left direction is called the most forward movement position of the control plate, whereas the movement limit position of 1 movement in the right direction is called the most return movement position. The right end of the control board 39 has the R
A coil spring 40 is connected to the control plate 11 for urging the control plate to the right, that is, in the backward movement direction. A protrusion 39a is formed at the upper end of the control plate 39, which is approximately in the center thereof, and is engageable with the pin 33a of the first tooth width 33. The right edge of the protrusion 39a engages with the pin 33a, so that the control plate 39 is moved forward by the rotation of the first gear 33. As shown in FIGS. 2, 4, and 10, the lower part of the control plate 39 is connected to the control plate via a coil spring 41, and moves to the left as the control plate moves forward. A lever B 42 is arranged.

A protrusion 42a is formed at the right end of the lever B42 and engages with the right edge of a protrusion 39b formed at the lower end of the control plate 39. This allows the control plate 39 to move back and forth due to the biasing force of the coil spring 40. Accordingly, the lever B42 also returns to the right. Figures 2, 8 and 10
As is clear from the figure, the left end of the lever B/12 extends back and forth on the lower surface of the chassis 3, and is rotatably attached to the chassis 3 at its center via a pin 44a.
The lever C44 is pivotally attached to the rear end of the lever C44 attached to the lever C44. The front end of this lever C44 is connected to a head stand 47 provided on the seat 17-3 so as to be able to reciprocate in the left and right direction.
It is centered on Note that the magnetic tape is driven in the front-rear direction, and therefore, the moving direction of the head stand 47 is approximately perpendicular to the tape transport direction.

The head stand 4 is constructed by the first gear 33, the control plate 39, the coil springs 40, 41, the lever B 42, the lever C44, and the related small parts.
A head stand driving mechanism for driving the head 7 is configured.

Next, the second gear 34 and its related members will be explained. The second gear 34 is an IC for rotating the magnetic head 49 provided on the head stand 47, and is disposed at a position farther from the head stand 47 than the first gear 33. Further, the rotation ratio between the first tooth If 33 and the second gear 34 is 1:1.

As is clear from FIGS. 7 and 18, the second gear 34
Two stop bins 34a and 34b are protruded from the rear surface with a pitch of 180°, and one stop bin 34a extends through the second gear so as to protrude and cover the front face of the second gear. are doing. Na J3, both Su I Tsububin 34. a and 34b engage with the right edge of a protrusion 39C projecting from the upper end of the rear end of the control plate 39. ? l, that is,
The control plate 39 can also be moved forward and backward by the two slot pins.

Further, a pawl member 51a and a spring member 5111 are provided near the second gear 34, and the second gear 34 is biased in the direction of time 1 in FIG. 18 by the pawl member and spring member. has been done. J shown in FIG.
is attached so that it can freely move back and forth in the left and right direction. At the right end of the moving plate 52, claws 52a and 52b are formed which can engage with the stop pin 34a protruding from the front surface of the second gear 34. The claw portion 52a engages with the stop bin 34a at its right edge, and the claw portion 52b engages with the stop bin 34a at its left edge. That is, the movable plate 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 attached to the upper surface of the chassis 3 at. Also,
Lever I] 53 is biased by a spring 54 (see FIG. 3). The left end of the moving plate 52 is pivotally attached to the rear end of this lever D53. Further, the front end of the lever D53 is connected to a slide member 56 provided on the head stand 47'' so as to be able to reciprocate in the front and back direction.
It is pivoted at the rear end (also shown in Figure 5).

As shown in FIGS. 2, 5, and 9, the magnetic head 49 is disposed on the right side of the slide portion 4A56. 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 on the head stand 47, that is, around an axis perpendicular to the magnetic tape contact surface of the magnetic head. It is rotatably supported. The rotating shaft portion of the magnetic head 49 is made of die-cast alloy.
On the other hand, the material of the bearing member 57 that fits into the rotating shaft portion is P-PS resin containing glass mu.

The angular position of the magnetic head 49 shown in FIG. 5 will be referred to as the first angular position of the magnetic head, and the position rotated 180 degrees from the first angular position will be referred to as the second angular position of the magnetic head. to be called. The magnetic head 49 is located between the first angular position and the second angular position.
It can be rotated freely between the angular position.

1u between the slide member 56 and the bearing member 57
A fan-shaped gear 59 is disposed on the fan, and is freely removable by one mesh (on the front end of the bearing member 57) in the reed part of the fan.However, the fan-shaped gear 59 and bearing member 5
In order to prevent any of the joints from interfering with the backward movement of the slide portion 4456, the slide member 56 is provided with a long hole 56a extending in the front-rear direction into which the joints fit loosely. Note that the fan-shaped gear 59 is click-biased by a coil spring 60. A bottle 59a is protruded from the right end surface of the fan-shaped gear 59, and the bottle is attached to the slide member 56.
It is pivoted to. That is, the fan-shaped gear 59 swings as the slide member 56 reciprocates. A gear portion of the fan-shaped gear 59 is meshed with a gear 61 coaxially fixed to the rotating shaft portion of the magnetic head 49.

The second gear 34 described above, the moving plays 1 to 52, the lever D53, the spring 54, and the slide member 56,
Bearing member 57, fan-shaped gear 59, and coil spring 6
0, the gear 61, and peripheral small members related thereto constitute a head rotation mechanism for rotationally driving the magnetic head 49. Further, the head u-rotation mechanism and the above-described head stand drive mechanism are collectively referred to as a control mechanism.

That is, the control mechanism causes the head stand/17 to reciprocate and the magnetic head 49 to rotate. Furthermore, as understood from the previous explanation,
When the first gear 33 rotates 360 degrees, the head stand 47 moves forward and backward, and when the second gear 34 rotates 180 degrees, the head 47 rotates 180 degrees. 49 is rotated by 180 degrees.

Here, the azimuth adjustment means that regulates the angle of the magnetic head 49 will be explained in terms of Cμm.

For example, as shown in FIGS. 5 and 9, the head stand 4
A regulating member 64 extending in the front-rear direction lj is fixed on the magnetic head 7 so as to recess 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, and both front and rear ends extending away from each other around the center are magnetic heads. It is possible to engage with the outer peripheral part of 49. More specifically, both 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 a U-shape, and the lower side of the ] A protrusion 4.9 protruding from the outer periphery of the head 49
J: is adapted to restrict rotation of the magnetic head 49 by engaging with a.

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 the neck portion of the head stand 47. Also, between the lower surface of both the front and rear ends of the regulating member 64 and the head stand 47, there is a gap between the front and rear ends. A pair of screws that apply an upward bias force to the.

A pull 66 is interposed. However, only one spring 66 is shown in FIG. These screws 65
The spring 66 constitutes a 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. That is, a pair of screws 6
By tightening or loosening 5, the angle of the magnetic head 49 can be adjusted individually at the two angular positions.

Then, divide the marking sub-member 64 at its center and make two members, each of which is fixed in a cantilever shape to the head stand 47 directly above the magnetic head 49. Composition doji C
A similar effect can be obtained. However, by using the above-mentioned regulating member as the 111-member having a front-back symmetrical shape, the number of parts is reduced, and the number of assembly steps is also reduced, contributing to a reduction in labor costs.

The story goes back and forth, but for example, as shown in FIG. 18, the first gear 33 has two toothless parts 33c and 33 (1 is Established GJ
It is being When the first gear 33 is in a stationary state, the missing tooth portion 33c corresponds to the gear 16 (a part of the gear transmission mechanism 20), and the partial tooth portion 3311 is connected to the start 1 by the trigger lever to be described later. is regulated from biting into the gear 16. On the other hand, the second gear 34 also has 18
Two toothless portions 34c and 34d are formed with a big angle of 0°, and when the second gear is in a stationary state during operation, the toothless portion 3/IC is connected to the gear 18 (one of the gear transmission mechanisms 20). The rotation of the second gear is regulated to prevent the toothed part from getting into the gear 18, as will be described later.

Next, regarding the two-trigger means such that when the 1111th wheel 33 and the second gear 3/l rotate, the first gear 33 meshes with the gear 16, and then the second gear 34 meshes with the gear 18. Explanation.

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

As shown in FIGS. 2, 4, and 17, a prohibition lever 69 is disposed on the left side of the control plate 39, and a prohibition lever 69 is provided at its lower end to bend the rear end of the seats 11 to 3. The parts 3a are swingably mounted.

The inhibit 1F lever 69 is formed with an engagement recess 69a that can be engaged with a bottle 39e protruding from the front surface of the medium heat section of the control plate 39. In addition, the prohibition lever 69 is connected to the coil spring 7.
Due to 0, when it comes to () in Figure 17, it is pushed in the direction of tears. The control plate 39 is moved forward (toward the right) by these prohibition levers 69 and the rotation ring 70. A prohibition means is configured to prohibit movement of the vehicle.

On the other hand, as is particularly clear from FIG.
1) is formed with a protrusion 33 that can be engaged with. That is,
During the initial movement of the first gear 33, the protrusion 33f of the first gear engages with the engagement protrusion 69b, and the 11th gear 69 moves to the 17th gear.
The control plate 39 is oscillated in the counterclockwise h1 direction as shown in the figure, and is set so that the backward movement #11 state of the control plate 39, which is at the maximum movement position 1, is released.

The above-mentioned jA, 1 stage (consisting of 11 levers 69, etc.) and the control plate 31), the control plate is rotated in the backward direction (rightward).
The spring 40 and the partial gear 33b of the first south center 33 are the gear 1.
6 (a part of the south-central transmission IN 4f420), the 1st gear 111 is moved in the direction of meshing with the 2nd gear 35, etc. as the 1st force means. 4U of I
A claw member 5 as a biasing means that biases the second gear in a direction in which the tooth portion meshes with the gear 18 (a part of the gear transmission mechanism 20).
1a, the spring member 51a, and the peripheral small members related thereto, when the first gear 33 and the second gear 34 start rotating, the first gear 33 meshes with the gear 16, and then the second gear 33 engages with the gear 16. Trigger means for meshing the gear 34 with the gear 18 is configured.

As shown in FIGS. 2, 7, 9, and 18, a trident-shaped start trigger lever 73 is rotatable at the center of the front surface of the sub-chassis A11. It is numbered. .

As is clear from FIGS. 7 and 18, one end 73a of the start trigger lever 73 is bent rearward at a right angle, and the bent portion can be engaged with the first gear 33. More specifically, the pin 33a protruding from the rear surface of the first gear 33 passes through the first gear and
It also protrudes from the front of the gear by a predetermined amount, and one end 73a of the start trigger lever 73 is adapted to engage with this protruding portion from the front, whereby the first gear 33
25 rotations are regulated. The second end 731+, which is formed in the star 1 to riga lever 73 and extends to the right side of -C, is
The left end of the lever 12 is engaged from the lower surface of the left end. The start 1~second end 731 of the trigger lever 73) is connected to the 1st detection lever 1 via the lever A12.
0 is engaged, and when the end detection lever 10 moves in the -L direction, the start 1 - trigger lever 7 is engaged.
3 rotates in the direction a3t in FIG. 18, and the rotation restriction state of the first gear 33 is released. Start 1~Rega lever 73 points downward ()
The third end 73c that extends C is to the right, and the third end is the 10th
It engages with the left end of the magnetic head switching command rod 75 shown in the figure. The magnetic head switching command is made and the LIC is attached to the lower surface of the chassis 3 so that it can move freely in the right direction of the IE.
The overall shape is [-]. That is, by moving this magnetic head switching command rod 75 to the left, the start trigger lever 73 moves as shown in FIG. 18 (1).
It is configured so that it can be rotated clockwise. Also, as shown in FIG. 10, there is a 21-1' rod near the head switching command rod 75 that applies a rightward bias force to the third pant portion 730 of the start trigger lever 73. A spring 6 is provided. As shown in FIGS. 2, 3, and 17, an electromagnetic solenoid 77 is disposed near the motor 24 and extends from side to side, and is fixed on the chassis 3.

A movable rod 77a of the electromagnetic solenoid 77 protrudes to the right with respect to the solenoid body, and a vertically extending pin 77b is fitted into the tip of the movable vJ+1 rod. The lower end of the bin 77b is loosely fitted into a long hole 3C formed on the main surface of the chassis 3 so as to extend in the left-right direction, and
It engages with the right end of the magnetic head switching command rod 75.

That is, when the movable door 7a of the electromagnetic solenoid 77 is pulled, the magnetic head switching command rod 75 is moved to the left (therefore, the start trigger lever 73 is rotated clockwise in FIG. 18). It is being done. In addition, as shown in FIG. 1, on the front of the housing 2 and to the right of the opening 2a are operating switches
79 is placed, and the operating switch/I! One switch of Y operates the electromagnetic solenoid 77 #h
1! As shown in FIGS. 2, 4, 10 and 17, the control board 39 is removed; C3
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 part hand 481 is arranged at a position where it is sandwiched between the bending part 3a and the control plate 39. l of the moving member 81
A projection 81a is provided at the upper end of the i end, and the pin 33a of the first gear 33 is engaged with the right edge of the projection.

J-, the moving part +L81 moves to the left together with the control plate 39 as the first gear 33 rotates. A coil spring 82 is provided at the right end of the movable member 81 for applying a bias force to the right to the movable member.
are connected.

As is particularly clear from FIG. 3, a T-shaped lever rE 83 is disposed on the right side of the moving member 81, and the lever rE 83 is located approximately in the center of the lever rE 83, and the lever rE 83 is located approximately at the center of the lever rE83. ! It is rotatably attached to the bent end portion 3a. Lever F8
A first end portion 83a formed in the first end portion 83a and extending downward is connected to the rear end portion of the moving member 81 via a coil spring 84. That is, by moving the moving member 81 to the left, the lever E83 is rotated clockwise as shown in FIG. 17C. A bottle 83c extending forward is protruded from the tip of the second end 83b formed on the lever F83 and extending leftward, and the bottle is connected to a convex portion 390 formed at the rear end of the control plate 39. and recess 39h
The engagement 1+J function is different from each other.

When the bottle 830 is engaged with the recess 39h, the control plate 39 is at its most backward V position (rightward movement limit position).
Move up to 1! When the pin 83C is engaged with the convex portion 35)g, the return of the control plate 39 to the most backward movement position is restricted. As mentioned above, the control board 39
When the control plate is not at the most backward movement position, the regulating portion 39d formed on the control plate moves the gears 1 to 34a and 3 of the second gear 34.
4. b, and the rotation of the second gear is restricted.

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 3. A movable rod 86a of the electromagnetic solenoid 86 projects to the left with respect to the solenoid body, and a pin 86b extending in the front-rear direction is fitted into the tip of the movable rod. This bottle 86b
is pivotally attached to the tip of a third end 83d formed on the lever E83 and extending upward by n. 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
5, the electromagnetic solenoid 86 is adapted to engage with the end protrusion 39g, and the force 1'! Activates when you turn the key of a car equipped with Tsui~Detsuki,
When the key is in the on state, the electromagnetic solenoid 86
The movable rod 86a is pulled in as the movable member 81 moves to the left and is fixed at the retracted position -C, therefore,
To the lever = 30 - - The pin 83c of F83 engages with the rear end recess 39h of the control plate 39. Furthermore, when the key is in the OFF state, the movable rod 8 is
6a is pulled out, and therefore, the pin 83c of the lever E83 engages with the rear end protrusion 39 (+) of the control plate 39.

The above-mentioned moving member 81, coil spring 82, lever E83, coil spring 84, etc., electromagnetic solenoid 86, and surrounding small members related to these move the control plate 39 to the maximum return position when the power is turned off. A prohibition/cancellation means is configured to prohibit return to the rightward movement limit position and to cancel 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 u of the support lever 30 rotatably holds the idler gear 28.
30a is the capstan. In addition, as shown in Fig. 10, this shaft part! A 30a also serves as a pivot shaft for the flywheel 27. As is particularly clear from Figs. An arm member 91 is rotatably mounted on the support shaft, and a pin roller 90 is rotatably mounted on the free end of the sleeve.

A pair of pinch pins 1-1-90 are key I7 button 30a
I'm going to have a good time with each of them. )
A bean 91a is fixed to the free end of the j-nom member 91, and a bean 91a that vertically passes through the j-nom member is fixed, and a bean 91a is fixed to the lower end of the left edge of the jar for blunting the azimuth adjustment of the magnetic head 49. One end of a spring 66 (see, for example, FIG. 5) is engaged. Arm part +A91 is this spring 66
The pinch roller 90 is pushed in the direction approaching the capstan 30a.

The capstan 30a, the binder 1-ra 90, the reel unit 15, the idler gear 28, and the peripheral small members related thereto allow the magnetic head 49 to be
A tape transport direction switching means is configured to determine a tape transport direction corresponding to the two rotational angular positions.

Each bottle 91 has a number attached to the tip of the arm member 91.
The upper end part of a can be engaged with the front end part and the rear end part of the slide part JA56, respectively. More specifically, two notches 5 are formed at the front and rear ends of the slide member 56, each extending in the front-rear direction and having open ends facing each other.
6c, 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 56d is formed at the front edge of the open end of each notch 560, and the bottle 91a is smoothly guided into the notch 560 by this tapered portion 56d.

When the bin 91a engages with the notch 56C, the arm member 91 is rotated to the left by a predetermined amount, and the pinch roller 90 is moved 11ftllGl away from the capstan 30a. In other words, the pair of pinch rollers 90 are selectively connected to the capstan 30a or 611111 +jI2 t! for the reciprocating motion of the slide member 56, which is a component of the head rotation mechanism described above. L, Merareruno'P Al.

As is particularly clear from FIG.
f! M L/The right end of the head stand 47 is! j
In addition, on the left side of the protrusion 47a, a concave part /17+1 is formed in series with the protrusion. There is C.

These protrusions 47a and recesses 471 engage, for example, a bottle 30d protruding from one end of the swinging support lever 30 shown in FIG. 3 when the head stand 47 moves to the right. It's becoming a sea urchin. When the mountain-shaped protrusion 47a engages with the bottle 30 (I), the support lever 30 is
The idler gear 28 is attached to the supporting lever (NI G-J is connected to the double gear 5 of the reel 1 unit 5).
Also, following the protrusion 47a, the recess 47b is engaged with the pin 30 (once the idler gear 28 engages with the double gear 5f, the support lever 3
It is designed to return to 0.

On the other hand, on both front and rear ends of the slide member 56, -3
/l-Protrusions that engage with pins 30d of either one of the pair of front and rear support levers 30 to prevent the pins from entering the recesses 117b of the head stand 47 when the head stand 47 moves to the right. 56e is formed. However, each protrusion 5
6c is adapted to engage only one of the pair of pins 30d in accordance with the forward and backward movements of the slide member 56. That is, the pair of idler gears 28 are configured to be alternatively removed from the reel unit by 11 return movements of the slide member 56, which is a part of the head rotation mechanism.

Next, the mechanism for loading and unloading the cassette halves will be explained.

As shown in FIGS. 2, 6, and 12 to 14, there is a subchassis +39 on the upper surface of the right end of the chassis 3.
5 is fixed. A swinging member A 96 extending in the left-right direction is disposed on the chassis 11-3, and a supporting protrusion is provided at the left rear end of the sub-chassis 1395 and the chassis 17-3. 3d is swingably attached to the rear end portion U.

A cassette holder 98 for holding a cassette 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 rearward direction.

Incidentally, the positions of Karen 1 to holder 98 shown in FIG. 5, for example, will be referred to as the raised position of the cassette holder. The cullet half is inserted into the cassette holder 98 in this position from the direction of the arrow S and is held in the holder toward the curren 1. Also, from this state, the swinging member 96 swings downward at a predetermined angle, and the cassette boulder τ)8 1)°l when the cassette halves held by the Karen 1 to the holder 98 are positioned at the playing position. The position is called the lowered position of the holder. The cullet holder 98 is located at this lowered position and at the -L
It is possible to move between L7 and 1m.

The lower surface of Karen 1 to holder 98 consists of two members: -1: surface member 99 and right face part +A 100.
~The moving member 101 that engages with the half moves toward the moving part 7 in the insertion direction 111 of the cassette half, that is, in the front-rear direction.
It is taken by I. A right side #3 unpinned 1r) Oa of the right side portion 1,1100 is provided protrudingly, and this pin is slidably fitted into a long hole 95a formed in →knob chassis 895 extending in the front and back direction. are doing.

On the other hand, a lever F10 is located at the center lower end of the sub-chassis 95.
2 is attached swingably at its lower end.
The upper end of the lever F is pivotally connected to a pin 100a. The lever F102 is provided with a coil spring that biases the lever F clockwise in FIG. 103 are connected.

The front end of the right side member 100 has a recess 100 that is depressed downward.
b is formed, and when the rightward member 100 moves rearward when the cullet half is inserted, the swinging shaft 98a of the cassette boulder 98 falls into this four part 1oOb, and the cassette holder is brought to the lowered position. Moving. A coil spring 104 is connected to the right end of the swinging member A96 for biasing the swinging member clockwise as shown in FIG. Note that as the movable member 101 moves in the cassette half insertion direction (backward), the -c1 cullet holder 98
iJT is biased towards the lower position 4 by 4.

As is clear from FIG. 12 and FIG. 1/1, as shown in FIG. A spring member 99d is provided that urges the cullet half to protrude inward.The protrusion 99c is integrally formed with the upper surface member 99 by stamping or the like. By integrally forming the protrusion 99c on the upper surface member 99 as shown in FIG. The number of man-hours required for this is reduced, leading to cost reductions.

The upper surface member 99 is also formed with another protrusion 99e that engages with the cassette half in the vicinity of the reel hole 106. This protrusion 99e is also integrally formed on the upper surface portion 4499 by punching or the like, similar to the above-mentioned protrusion 99c, and for the same reason as above].
Efforts are being made to reduce this. Note that the protrusion 99e engages with a four part 107 called a label area formed on the cassette half. In this way, the protrusion 99e is engaged with the concave part numbered in the first half. By closing the protrusion 99e, the engagement state of the protrusion 99e with the cassette half becomes firm.

In the cassette deck, the cullet half is inserted into the cassette holder 98 along its longitudinal direction. In addition, the above-mentioned control mechanism, that is, the head stand 4
A restraining mechanism for reciprocating the magnetic head 7 and rotating the magnetic head 49 is arranged near the deepest part of the cassette holder 98.

Next, FF operation (tape fast forward operation) and REW operation (
Mechanism (3) for performing the tape rewinding operation will be explained.

As shown in FIGS. 2, 3, 9, and 16, the left end of the chassis 3 is bent to extend upward, and this bent portion 3 A subchassis C11'1, which is also shown in FIG. 1F, is fixed.

Rib chassis C11" (,11 extends in the front and back direction])
A pair of manual levers 113 and 1 stacked one above the other
14 is provided so as to be able to reciprocate (ql) in the facing direction. The operation end has an operation button 1 provided on the front of the housing 2.
15.116 (first illustration) is taken (ql).

The longitudinal operating lever 113 disposed at the bottom is used for forward movement, that is, for backward movement, and the longitudinal operating lever 114 provided on the right side is for forward movement. It is intended to be used to perform "REW" operations. Each of these longitudinal operation levers 113 and 114 is arranged above the magnetic head 49. In addition, both hand-operated levers 113.
114 is provided with a forward bias force by coil springs 118 and 119, respectively. As is clear from FIGS. 7 and 15 to 14, the upper end of the longitudinal pin 121 protruding from the left end of the upper surface of the head stand 47 is attached to the left side of the rear end of the longitudinal operation levers 113 and 11/l. Tapered portions 113a and 114a are formed which engage with the head base when it moves to the right. That is, when the head stand 47 is moving to the right, by pressing either of these longitudinal operation levers 113 and 114, the head stand 47 is moved leftward by a predetermined amount, and thereby the magnetic head 49 is removed from the magnetic tape by a distance U. Also, when the head stand 47 is moved to the left by a predetermined amount by operating the longitudinal operation lever, the protrusion 47a formed on the head stand 47 moves the support lever 30 that holds the idler gear 28. The idler gear 28 is engaged with the bin 30 (l), thereby causing the idler gear 28 to separate from the double gear 5 of the reel units 1 to 5. and the ninth
As shown in the figure, there is a reel unit 1 on the chassis 3.
A pair of pawl members 123 are provided to prevent the reverse rotation of the heads 47 and 5. When the head 47 moves, the head 47
The right end portion of the reel unit 123 engages with the claw member 123 to push it open, and the reverse rotation prevention state of the reel unit 1 and 5 held by the claw member is released.

Returning to the original topic, as shown in FIG. 2, FIG. 3, and FIG. It is attached movably in the direction. A single spring 125 is connected to the upper end protrusion 12'la of the plate 124 for applying a forward bias force to the plate.

Play 1-12 A lever 1126 formed in the shape of a letter is rotatably installed in the center of the front end of the play 1-12. , the rear edge of the protrusion 113G extending downward from the longitudinal operation lever 113 is brought into contact with the front edge of the first end 126a formed in the first flange 11126 and extending downward. Also, lever +1126
The rear edge of the protrusion 114G, which extends and protrudes toward the other longitudinal operation lever 11/I, comes into contact with the front edge of the second end 126b that extends in the -V direction. It is being taken.

In other words, press the hand-operated levers 113 and 114, respectively.
-Specifically, the lever 1-1126 is rotated in one direction, counterclockwise and clockwise in FIG.

A lever 1129 formed in a substantially dogleg shape is arranged in front of the plate 124, and is rotatably attached to the left bent portion 3f of the chassis 3 at its central bent portion. A bottle 129b is protruded from the tip of a first end 129a formed on the lever 1129 and extending rearward, and this bottle 129b is connected to a third end 126C formed on the lever 1-1126 and extending forward. It is slidably fitted into a long hole 126d formed in the hole 126d. Further, the second end 129C of the lever 1129 extends downward.

As shown in FIG. 2, FIG. 3, FIG. 10, and FIG. 16, 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 1 to 5 and a flywheel 27, respectively. The bottle 130a is located approximately in the center of the bottle 130a.
It is swingably attached to the seats t7 and 3 via. The left end of the swinging lever 130 is attached to the tip of the second end 129G of the lever 1129. Also, the right part of the swing lever 130 has three gears 132, 133 and 13I that mesh in series. A gear transmission mechanism 135 consisting of a gear transmission mechanism 135 is provided.A gear 132, which is an initial gear C, of the gear transmission mechanism can mesh with each gear portion 27a of a pair of flywheels 27, and a gear 134, which is a final gear. are adapted to mesh with the small diameter gear portion formed in the double gear 5 of the reels 1 to 5. That is, the longitudinal operating levers 113 and 11
4 are pressed, the swinging lever 130 swings backward and forward via the lever H126, whereby the reel units 5 disposed at the rear and front are selectively rotated at high speed. .

As shown in FIG. 2, FIG. 7, FIG. 15, and FIG. An intermediate lever 13B is provided that can reciprocate in the direction of movement (front-back direction) of both longitudinal operation levers. The intermediate lever 138 is provided with a coil spring 1 that applies a bias force forward to the intermediate lever.
39 are connected. As is particularly clear from FIG. 15, a bin 138a is provided protruding from the lower surface of the rear end of the intermediate lever 138, and the bin extends in the longitudinal direction of the longitudinal operating levers 113, 114 corresponding to the bin. It is slidably engaged with an elongated hole 140 formed in the same manner. On the right end side of the central part of the elongated hole 140 are four parts 1/1. into which the bottle 138a can be fitted. o
a is formed. Here, the intermediate lever 138 is configured to swing by a predetermined angle about a support shaft 138b on its front end side. In addition, the coil spring 139 that biases the intermediate lever 138 forward is stretched in a direction inclined to the right from the rear to the front.
As a result, the intermediate lever 138 is also biased in the counterclockwise cutting direction as shown in FIG. movement) When the pin 138a of the intermediate lever 138 is pressed, the bin 138a of the intermediate lever 138 moves into the recess 140 of the long hole 1/IO.
The intermediate lever 138 is inserted into the position A, and the intermediate lever 138 moves rearward. However, if only one of the pair of longitudinal operation levers 113 and 14 is moved forward, the rear right edge 140b of the long hole 17'IO formed on the other longitudinal operation lever is
is still in contact with the bottle 138a, so the intermediate lever 1
38 forward movement (backward movement) is not performed.

As for details, when either one of the longitudinal operating lever 113 for FF operation and the longitudinal operating lever 114 for REW operation is moved forward, it is moved to the forward position. A vs structure is provided for locking. Further, the locking mechanism locks the other longitudinal operating lever in the forward movement position when the other longitudinal operating lever is rotated, and also unlocks the one longitudinal operating lever. In addition, when either of the longitudinal operation levers 113, 114 is pressed, the lever J142 installed behind the pitcher operation levers is swung in the bar direction as shown in FIG. The switch 143 is activated.

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.

The intermediate lever 138 moves forward to press the swinging member 96 rearward and move the cassette holder 98 from the lowered position to the raised position.

Next, various switches installed next to the mute switch 143 and their arrangement will be explained.

As is clear from Figures 2 and 6, the υ bushing chassis B
A bracket 146 is attached with a mounting number on the right end surface of the bracket 95, and two switches 147 and 14 are attached to the bracket 1~.
8 is attached. The switch 147 is used to switch the power to the cassette deck and a tuner disposed near the cassette deck. Further, the switch 148 is for operating the motor 24. Both switches 147 and 148 are both mechanically activated upon insertion of the cassette half into the cassette holder 98.

As shown in FIGS. 2, 7, and 18, a switch 149 for switching between F and REW is fixedly installed on the front surface of the left end of the leave chassis A11. This switch 17I9 is activated by the engagement of the moving plays 1 to 52 which have been picked up by the zabushi 17 to △.
Ru.

Further, as shown in FIG. 15, the descendant nub chassis 11
A switch 150 for cutting off power supply to the cassette deck is fixed to 1-1-, and the switch 150 is activated when the intermediate lever 138 is moved forward (backwards).

Figure 19 (
2 to 26, and follow the operating procedure in a simple manner.
I will explain to you.

First, a force L? from the 1'' part 2a of the housing 2 shown in FIG. A foot 7155 (shown in FIG. 19) is inserted to hold the cassette half in the cassette boulder 98 as shown in FIGS. 19-21. As shown in FIG. 20, when the cassette half 155 is inserted into the cullet holder 98, the right-facing member 100 moves rearward, thereby causing the pivot shaft 98a of the cullet holder 98 to move toward the right-facing member 100. The force hit holder is moved to the lowered position by falling into the recess 100b.

Therefore, the cassette half is set at the playing position.

Along with this cassette half insertion operation, switches 147 and 148 shown in FIG. 6 are turned on, for example.
When the power is turned on to the cassette deck and the motor 2
4 starts rotating. When the motor 24 rotates, the 10th
As shown in the figure, the small boob 924a is rotated in the direction of arrow M, the pulley 23 is rotated in the direction of arrow N, and the pair of front and rear flywheels are rotated in the directions of arrows O and P, respectively. Therefore, the pair of reel units 5 start rotating in the directions of arrows Q and R (as shown in the 10th figure) through the pair of idler gears 28, respectively. In this way, since the pair of reel units 5 rotate in opposite directions, the slack in the magnetic tape within the cullet barfco 55 is wound up.

When the slack in the magnetic tape is wound up and a predetermined tension is applied to the magnetic tape, all the members of the reels 1 to 5 (behind A, except for the double gear 5) shown in FIG. is fixed by the reaction force of the tension, and only the double gear 5 continues to idle relative to the member group via the felt plate 5h. Therefore, the magnetic tape is not transported with the above 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 counterclockwise direction as shown in FIG. 18(). Therefore, the bottle 10b protruding from the end detection lever 10 is moved to the top of the mountain-shaped protrusion 141 of the end detection gear 14 as the end detection gear 14 rotates. Here, as is clear from the above, the arm 51 of each reel unit 5 is stopped. Therefore, the intermediate lever 7 is not operated a3, and the pin 10b of the end detection lever 10 does not continue to slide along the mountain-shaped protrusion 14b. Therefore, the bin 10b of the end detection lever 10
stops at the top position of the mountain-like protrusion 14.1), whereby the protrusion 14C of the end detection gear 14 engages with the bin 10b. Therefore, the end detection lever 10 moves upward,
The start trigger lever 73 is activated via the lever A12.
Rotate clockwise in Figure 8. Thus, star 1
~1~ Since the pin 33a was engaged with one end of the rig lever 73, the first gear 33, whose rotation was restricted -C, became rotatable, and due to the urging force of the coil spring 35, the first gear 33 became rotated as shown in FIG. When the first gear 33 is rotated in the first direction, the partial tooth portion 33b of the first gear 33 is rotated in the first direction.
6, and the first gear begins to rotate. First gear 33
As a result of the rotation, the control plate 39 shown in FIG. 17 is moved to the left, and therefore the head stand 47 is moved to the right as shown in FIG. 22, and the magnetic head 49 comes into contact with the magnetic tape. It should be noted that when the control plate 39 reaches the most forward movement position (leftward movement limit position), the engagement recess 69a of the prohibition lever 69 engages with the bottle 390 protruding from the control plate.
(The return movement (movement to the right) is prohibited. With the above-mentioned rotation of the first tooth width 333, the moving part opening 81 also shown in FIG. 17 etc. is also Therefore, the lever [E33] rotates clockwise as shown in FIG. This action causes the pin 83c of the lever IE 83 to push into the recess 39h formed at the right end of the control plate 39.
Therefore, the control plate 39 can be moved to the most active position (rightward movement limit position). In addition, the control plate 3 is attached to the engaging four parts 69a of the above-mentioned 11-nile par 69.
By entering the bottle 390 of No. 9, the prohibition lever 6
9 rotates clockwise by a predetermined amount LJ as shown in Figure 23,
One end of the pressure inhibiting lever is the lever J142 (for example, the seventh
The switches 11 to 13, which had been set to the off state via the switch (see figure), are turned off.

On the other hand, as shown in FIG. 22, by moving the head stand 47 to the right, the front idler gear is separated from the double gear 5f of the front reel unit 5, and only the rear reel unit 5 is rotated. Become. Note that this operation is performed by the protrusion 47a and recess/17b formed on the head stand 47, and the protrusion 5 provided on the slide member 56.
60 It depends on the interaction, but since the configuration μ2 was described above in detail, it will be explained in detail here. Also, the 22nd
As shown in the figure, as the head stand 47 moves to the right, the rear pinch roller 90 comes into contact with the capstan 30a, and the other, that is, the front pinch roller 90 is moved from the corresponding capstan. It is kept in a detached state. This is because the pin 91a protruding from the arm member 91 supporting the front pinch roller 90 is fitted into the notch 56c of the slide member 56. As also shown in FIG. 22, by moving the head stand 47 to the right,
The pair of claw members 123 that were engaged with the reel unit 5 are separated from the reel unit.

In this way, tape transport to the FWD side is started, and -53= Regeneration on the FWD side is performed.

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

When the switch for switching the tape transport direction is pressed, the electromagnetic solenoid 77 is turned off, and the 1ri11 rod 77a of the electromagnetic solenoid is pulled. Therefore, the -C start 1 to trigger lever 73 are rotated in the direction of time 1 in FIG. 18 via the magnetic head switching command rod 75. By this, J: τ
The first gear 33, which had been restricted from rotating, became able to rotate.
When the coil spring 35 reaches the position shown in FIG. 18, it is rotated in the right direction by the force A. J, the partial tooth portion 33b of the first gear 33 meshes with the gear 16, and the 11th! ii The car begins to rotate. Immediately after the first gear 33 starts rotating, the protrusion 33' protruding from the 11th fl wheel engages with the engagement protrusion 69b of the prohibition lever 69 (see FIG. 17), thereby moving the prohibition lever into the 17 in the counterclockwise direction. Then, the engagement recess 69a of the prohibition lever is locked.
The engagement state between the control plate 39 and the pin 39e is released =51-, and the control plate 39 is released from the engagement state of the control plate 39 with the pin 39e of the coil spring 40.
Depending on the force, the maximum return position (rightward movement limit position) can be reached instantly.
was forced to return to When the control tall plate 39 returns to the most backward movement position, the head stand 47 moves to the left, and the magnetic head 49 is separated from the magnetic tape.

When the control plate 39 is in the forward movement position (leftward movement limit position), the stop pin 3/Ia is engaged with the restriction portion 39d (for example, shown in FIG. 4) formed on the control plate, and the second gear The rotation of 34 is restricted. This restriction is released by returning the control plate 39 to the above-mentioned maximum movement position, and the second gear 34 is moved to the first position by the action of the claw part 1tA51a and the spring part 4451b shown in FIG.
As shown in Figure 8, it is rotated in the special training direction.
The toothed portion of the second gear 34 meshes with the gear 18, and the second gear begins to rotate. As the second gear 34 rotates, the stop pin 34a protruding from the second gear engages with the claw portion 52a of the movable plate 52, and the movable plate is moved to the left. The magnetic head/I911 RE connected to the player 1 can be rotated 180° to the V side. J.
In addition, the switch 149 is switched from the 1-W[) side to the REV side when the moving notebook 52 moves in the ``J'' direction.

By the 11 rotation of the second gear 3/I, the stop pin 3/Ia of the second gear is moved to the protrusion 39 formed on the control plate 39.
C (see FIG. 17, etc.), and the control plate is moved a predetermined distance to the left by the stop pin. When the second car 3/I completes 180° rotation, the knob 3=18 goes from the protrusion 39c of the control plate 39 to the neck 111.
), but then the pin 33a of the first gear 33 engages with the protrusion 39a of the control plate 39, and the control plate 33
9 is moved to the most vertical movement position (leftward movement limit position) and is turned 1-1 by the above-mentioned Jζ lock lever 69.

As the control plate 39 moves forward, the head stand 47 moves again to the right, and the magnetic head 49 comes into contact with the magnetic tape. J
, ta, mi] -1 The switch 143 is also in the A state as described above.

Further, the slide member 56 is moved forward by the leftward movement of 52 to the moving play 1, and as a result, the head stand 47 is moved rightward, the rear idler gear 28 is separated from the reel unit 5, and the front idler gear 28 is removed from the reel unit 5. The idler gear 28 is engaged with the reel units 1 to 5, and only the front reel units 1 to 5 start rotating. Further, the front pinch roller 90 is brought into contact with the capstan 30a,
In addition, the rear pinch roller 90 is held at a distance of 111tJIR from the capstan 30a.

In this way, the tape transport direction is switched from the FWD side to the REV side.In addition, regarding the operation of switching the tape transport direction from the REV side to the FWD side, the rotation of the tape bin 34 to the slot 1 of the second gear 34 is performed.
The tape transport direction switching operation from the FWD side to the REV side is substantially the same as described above, except that b engages with the claw portion 52b (shown in Figure 18) of the moving plate 52 and moves the moving play 1 to the right. and will not be detailed.

Next, the operation of one mechanism for automatically switching the tape transport direction will be described.

For example, when the tape feeding to the [Wl] side is completed, a predetermined tension is applied to the terminal end portion of the tape. ``The members at the lever, excluding the
C It becomes a fixed form. Then, the double gear 5) continues to idle through J-Role 1 to 511 (with respect to these fixed parts +A city). [When the tape is being transported to the WD side, the fixed portion 44 is also rotating except for the arm member 51. Further, the arm member 51 receives a biasing force J caused by the rotational force ( ), and moves the intermediate lever 7 through the floating lever 8 in the direction opposite to that shown in FIG. 22. are doing. Five to this - C1
The earth detection lever 10, to which the rear dovetail portion of the intermediate lever is pivotally mounted, rotates in the opposite direction H1, as shown in FIG.
A pin 10 protruding from the []-nd detection lever is
11 is activated while contacting the mountain-like protrusion 1/lb of the end detection gear 1/l, and the protrusion 14c of the end detection gear does not engage with the pin 101). On the contrary, when the members other than the rear double gear 5f of the reel unit 5 stop the tape and are fixed at Jt, the force that urges the end detection lever 10 also disappears, and the protrusion 140 of the near end output gear 14 moves to the end. It engages with the pin 101) of the detection lever. Therefore, the end detection lever 10 moves to 10 Ij, and the stars 1 to 1 to the trigger lever 73 are moved via the lever AI2.
When it reaches the position shown in Fig. 18, it rotates in the direction of tears. In the following, the tape transport direction is switched by the same operation as the switching operation of the tape transport direction from the FWD side to the REV side by pressing the switch described above. Note that automatic switching of the tape transport direction from the REV side to the F and WD sides is performed in the same manner as described above, and will not be described in detail.

Next, F [operation (tape fast forward operation) and REW operation (
(tape rewinding operation) will be explained.

For example, when performing an FF operation during tape playback, the longitudinal operating lever 113 for the FF operation is pushed and moved rearward as shown in FIGS. 24 and 25.

Then, via lever J142, Mikou 1 to Suitsuji 1
43 is turned on. Further, the longitudinal bin 121 protruding from the left end of the head stand 47 is pressed to the left by the tapered portion 113a of the longitudinal operation 1 collar 113, thereby moving the head stand 47 to the left by a predetermined distance. and magnetic head 4
9, the contact state of the magnetic tape is loosened.

As is clear from FIG. 25, the backward movement of the longitudinal operating lever 113 is J, and the longitudinal operating lever 113C is
The engaging lever 1-1126 is shown in Fig. 25 as 1-16.
Anti-I1. ! It is oscillated in the It1/lJ direction. Therefore,
The lever 1129 similarly swings in the direction 81 in FIG. 25, and at the same time, as shown in FIG. rotate in the direction. Therefore, the first gear 132 of the gear transmission mechanism 135 provided on the swing lever
meshes with the gear portion 27a of the rear flywheel 27,
Further, the final stage gear 134 meshes with the small diameter gear portion of the double gear 5 of the reel unit 5 on the 1p side. On the other hand, when the longitudinal operation lever 113 is pressed and the head stand 47 is moved to the left, the pair of idler gears 28 are moved from the reel unit 1-5. Therefore,
The rear reel unit 5 rotates at high speed, and the tape is rapidly forwarded.

When performing the RFW operation, this is done by pushing the longitudinal operating lever 114 for the REW operation. That is, the projection 114C of the longitudinal operation lever 114 is the lever 1-1.
126, and the lever 1-1 is rotated in the direction 7-I as shown in FIG.
The first stage gear 132 and the final stage gear 134 mesh with the front flywheel 27 and reel unit, respectively. Note that the head stand 47 is moved to the left when the tapered portion 114a of the longitudinal operation lever 114 engages with the longitudinal bin 121 provided on the head stand 47.

When the tape playback is finished and you want to perform the cassette half adjustment 1~, use the longitudinal operation lever 113 for FF operation and the REW
All you have to do is press the longitudinal operation levers 11/I at the same time.

By simultaneously pressing the two longitudinal operation levers, the intermediate lever 138 (for example, shown in FIG. For example, it engages with the left end portion of the device (shown in FIG. 6).

Therefore, by the completely reverse operation when loading the cassette half 155, the cassette half is projected to the retrieval position toward the listener. In addition, for example, since the switch 150 shown in FIG. 24 also operates, the electromagnetic solenoid 86
(see FIG. 23) is turned off, and the lever F83 is returned to the state shown in FIG. 17 by the action of the coil spring 82. Therefore, the lever 83c provided on the lever E83 can engage with the protrusion 39o formed on the right end of the control plate 39. As a result, the return of the control plate 39 to the last movement position (rightward movement limit position) is prohibited.

That is, the stop pin 34a of the second gear 34 is kept engaged with the regulating portion 39d of the control plate 39, and the second gear 3/I is prevented from rotating as soon as the power is turned on again. This prevents the tape transport direction from being switched unnecessarily.

As mentioned above, the A-operation of the electromagnetic solenoid 86 marked 1- is caused by the force 1! Steps 1-b are performed after the key of the car in which the deck is installed is turned off.

As detailed above, in the force 1'!tsu1 head deck according to the present invention, a pair of longitudinal operation levers (113, 114) for performing the FF operation and the REW operation are simultaneously moved forward. Next, an intermediate lever (138) that moves forward together with the two longitudinally operated levers is arranged above the magnetic head together with the two longitudinally operated levers, and the intermediate lever directly engages with the cullet holder, thereby allowing the user to remove the Therefore, compared to the already developed cassette deck, which transmits the forward motion of the intermediate lever to the holder 1 through the link mechanism, As a result, the number of dividing parts of the link mechanism is small, making it easier to reduce the size and cost of the cullet deck as a whole.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the entire cassette deck according to the present invention, FIG. 2 is an exploded perspective view of the internal structure of the decks 1 to 4, and FIGS. 3 to 8 are partially exploded views of the internal structure. The detailed oblique drawings, FIGS. 9 and 10 are top and rear views of the internal structure, respectively, and FIGS. 11 to 18 (j), and FIG. FIG. 26 is a diagram ν) for explaining the operation of the cullet deck. Explanation of main part of n0 1... Force 1 = Tsu 1 ~ Detsu - 1-2...
Housing 2a...Open [Part 1 3...
...Sit.-C3a, 31--- fi1 song section 3c, 5rr356a, 95a, 126d. 140...Elongated hole 3d...Support protrusion 5...Reel ni (Leek 1-5a...Rotation shaft 51)...
...Reel 5G...--Color 5 d...
...Bushiko 5e... Expanded diameter part 5t...
...Double Gear 5o! 5Q, 30b, 35, 40
．． 41゜60.70.76.82.8'l, 103゜1
04.118, 119, 125, 139... Fill spring 5h... Fell 1 to plate 51...)
Norms 5j, 5k... Washer 7... Intermediate levers 7a, 8a, 8b, 10b, 30d, 33a. 39e, 44a, 77b, 83c, 86b. 91a, 100a, 129b, 130a. 138a, 13Bd----- Bin 7b, 648... Frontage part 7c, 56C... Notch part 8... Idle lever 10... End detection Levers 10a, 14c, 33f, 39a, 39b. 39c, 42a, 47a, 49a, 56e. 81a, 99c, 99e, 113c. 114C... Protrusion 11... Swab chassis △ 12... Lever A 14... End detection gears 14a, 39h, 47b, 100b. 140a...Protrusion 14b...Protrusion 16.17.1B, 19.61, 132°133.13
4...-1'-A20.135...Gear transmission mechanism 22...A-lO 23...
...Pulley 2/l...Motor 24a.
...Small pulley 25 ...Belt 27
...Flywheels 27a, 27b...
・Gear part 28... Idler gear 30... Support lever 30a... Kit Bustan 33...
... 1st tooth middle 331) ... Partial southern part 33 G, 33 (1, 34c, 3 A d.
...Toothless portion 3/I...Second gear 34a, 3/It)...S1 hepbin 36.
12MI...Plate 39...Control board 39d...
Regulation part 39G... Convex part 42...
...Lever B44...Lever C47...
・Head stand 49...Magnetic head 51a, 123---Claw portion I451b, 99
d... Spring member 52... Moving plates 52a, 52b... Claw portion 53... Lever D 54.66... Spring 56. ...Sliding portion 56d, 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 73b, 83b, 126b, 129C ...Second end 75...Magnetic head switching command [1 end 77.8
6... Electromagnetic solenoids 77a, 86a...
...Movable rod 79...Operating switch J! Y
81...Moving member 83...Lever F 83a, 126a, 129a...First end 89
．． 138b...Support shaft 90...Pinch roller 91...Arm member 95...Ribshi 17-shiB 96...Swivel portion 96a...
Left end portion 98...Holder 98a...
...Rotating shaft 99...Top part 1
00... Right side member 101... Moving member 102... Lever [10G...
・Reel hole 107... recess 111...
...1 knob chassis C 113,11/l...Longitudinal operation lever 115.
116... Operation button 121... Longitudinal pin 124a... One end beam origin 126...
...1 collar 1-1129...Lever 11
30... Swinging lever 138... Intermediate lever 140 b... Rear right edge 1/I2... Levy, j 1/13...・・Mini T-Switch 146・・
...Bragutsu I 147.1 /1.8,149.150...Switch 155) ...Karetsu 1~Half sign opening box 1-82363 (22) Procedure Neichi 11E '44M (Method) Showa 6041: February 121] Patent W [Administration Department Showa 59f1-Patent π1 Application No. 203874 2, Name of the invention 1 to 3, Name of the person making the amendment I'1 Which relationship Patent Applicant Address: 1-4'1 Meguro, Meguro-ku, Tokyo Name (501) Pioneer Co., Ltd. Ne14, Agent:
104

Claims (1)

[Claims] A cassette deck of a type in which a cassette half is inserted in the longitudinal direction, comprising a moving member that engages with the cassette half and is movable in the insertion and ejection direction of the cassette half, and a bias force applied to the moving member in the ejection direction. a biasing means that is movable between a raised position for holding an inserted cassette half and a lowered position for positioning the held cassette half at a playing position, and is brought to the lowered position by movement of the movable member in the insertion direction; The cassette holder is biased toward the
A pair of longitudinal operating levers for performing the operation and RFW operation, and a pair of longitudinal operating levers are provided so as to be able to reciprocate in the movement direction of the pair of longitudinal operating levers, and that move forward when the pair of longitudinal operating levers are simultaneously moved forward. an intermediate lever for moving the cassette holder to the raised position, the longitudinal operating lever and the intermediate lever are disposed above the magnetic head, and the intermediate lever is configured to directly engage the cassette holder. A cassette deck characterized by: