JPS6182362A - Cassette deck - Google Patents

Abstract

PURPOSE:To prevent a cassette half from jumping out of the cassette deck main body by providing a projection engaging with a concaved part near a reel hole of the cassette half to the moving member engaging with the cassette half. CONSTITUTION:The moving member 101 engaging with the cassette half is fitted freely movably in the ejecting direction of the cassette half to the lower face of a cassette holder 98. The upper face member 99 of the member 101 is provided with a projection 99e engaging with the concaved part 107 near the reel hole of the cassette half. Thus, at ejection the possibility of the cassette half jumping out of the cassette deck main body is precluded at all and the cassette half is positioned surely to the recovery position by a listener.

Description

[Detailed description of the invention] anti-l'ko [ The present invention depends on the power L and the 1-deck.

In recent years, there has been a trend towards miniaturization of power decks, and especially for car-mounted cassette decks, there is a limit to the space in which the cassette deck can be accommodated. There is a strong demand.

The cassette deck is equipped with a cassette loading mechanism.
There are mechanisms, such as the cassette loading mechanism of the power hit deck proposed as No. 7843, that contribute to the miniaturization of cassette decks. The cassette loading mechanism includes a moving member that engages with the cassette half and is movable in the insertion and ejection direction of the cassette half, a biasing means that applies a bias force to the moving part in the ejection direction, and an inserted current. A cassette holder that is movable in any darkness, and is moved toward the lowered position by movement of the moving member in the insertion direction; have.

A cassette package made like this! ! At the organization (,
1, soil, il: J to bias means (move 1? II
＋A and others will be killed by 1 burn, J,
By the way, between the moving part (A and the cassette half 1711), there is an IJI exit by the bias horn mentioned above. , the given frictional force on the sea urchin is i1-
However, if this frictional force is reduced for some reason, there is a risk that the cullet half will jump out due to momentum.

Summary of the week The present invention was made in view of the above points, and the point that is different from the first point is that the cassette half does not pop out from the deck body and can be reliably applied with force. Boyfriend who is pushed to half recovery position (Q position): lt
・It is to offer Jashi to Detsuki.

The 7J retard deck according to the present invention includes a movable member that engages with a cassette half and is movable in the insertion and ejection direction of the cassette half, and a movable member that applies a bias force to the movable member in the ejection direction. The bias means that holds the inserted notch half is in the upper position. 1 Blue
The first half of the mountain
□Isa ii 1゛l; divination (koi 1in; 1°'1 power 41 bottom a) ``7 movable between any position 11 points'' 1 company direction of the moving part H Before moving to J,
1 to 1 lower; and 1 in the direction of 1 (-J force) including the cassette holder and the cassette half t. This force L = yl ~ near the reel hole of the half It is characterized in that the protrusion that engages with the recess has a gQ-shape.

Embodiments Hereinafter, cassettes 1 to decks as embodiments of the present invention will be explained with reference to the accompanying drawings.

In the figure, reference numeral 1 at d5 indicates the entire cassette 1 to 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 cassette half (described later) is inserted. However, the term "forward" as used herein refers to the direction indicated by the arrow Y in the figure, and the left-right direction refers to the direction toward the front. Therefore, the arrow X direction is to the left, and the arrow Z direction is upward.

In Figs. 2 and 3, as well as Figs. 9 and 10, = 4-h is shown.
A chassis 3 is provided. In Figure 4, there are a pair of reel units 1 to 3 on the chassis 3.
5 are arranged side by side in the front-rear direction, and one is rotatably mounted on the seat. 11th
It is clear from the diagram h J, 'Uni, Reel Units h 51;
i The chassis 3 has the identified rotating support shaft 5a.

A reel 5b is fitted onto the rotary support shaft 5a. A collar 50 and a bush 5d are attached to each of the upper and lower ends of the ring 5b. The collar 50 can be fitted into a cassette reel which is housed in the above-mentioned tape sets 1 to 1/2 and is wound with magnetic tape. An enlarged diameter part 5e having a circular diameter is formed in the center of the reel 5h, and a double gear 5r having two large and small gears 81) is disposed between the enlarged diameter part and the bush 5d. ξ,
It is rotatably attached to the rotating support shaft 5a.

A coil spring 5o is interposed between the double gear 5r and the bush 5d in the direction of 11 (=19A'l) between the double gear and the bush. 5h felt board between
is set number). The felt plate 5h is attached to the enlarged diameter portion 5e, and is slidably in contact with the double gear 5[. An arm 5 is provided between the upper surface of the enlarged diameter portion 5e and the collar 50.
1 has been kicked off, and reel 5 is shown at one end.
A mounting number is rotatably attached to the outer circumference of b. Arm 5
The lower and upper surfaces of the reel 5b are slidably engaged with the enlarged diameter portion 5e and the collar 5C of the reel 5b via washers 5j and 5k. A coil spring 5p is arranged to force F-J downward.

As shown in FIGS. 2, 3, 9, and 10, an intermediate lever 7 is disposed on the right side of the reel units 1 to 5 and extends approximately in the front-rear direction. 7a, the intermediate lever 7 is rotatably attached to the chassis 3 in a plane parallel to the main surface of the chassis. A rectangular opening 7b is formed at the front end of the intermediate lever 7. A groove 8a protruding from the center 711 of the floating lever 8, which is movably mounted on the chassis 3, is loosely fitted into the opening.

Pins ε31) are protruded from both ends of the floating lever Ei, and each pin slides into a long hole 5m formed in the free width part of the arm 51 of the reel unit 5. freely engaged. A point detection lever 10 is disposed near the rear end of the intermediate lever 7, which is also shown in FIGS. 7 and 18. This end detection lever 1
0 is fixedly installed on the upper surface of the rear end of the chassis 3 so as to protrude upward.→The knob is installed at the rotatable end of the lever △12 installed on the chassis A11, in this case, the lever △ At the right end, take the upper Q'7;
It is being A protrusion 10a extending downward is formed at the end of the end detection lever 10, and the protrusion 10a is formed at the rear part of the middle Ij'; It is slidably engaged with the entry portion 7G.

A pin 1011 is protruded from the rear surface of the upper end of the J, sea urchin, and J card detection lever 10 shown in FIGS. 1・H] and after the end detection lever 10 Q'a
i II! It is engaged with the end detection gear 11 facing j. As is clear from FIGS. 7 and 18, the engine 1
A recess 14a is formed on the surface of the ζ detection gear 14 facing the end detection lever 10, and substantially mountain-shaped projections 141 of the same shape project in the radial direction of the end detection lever on the circumferential surface of the recess. Three are installed at a pitch of 120°. Moreover, three protrusions 17Ic having the same shape are formed in the center of the recess 14a and extend radially toward the valleys between the above-mentioned mountain-like protrusions 14b. Each protrusion 1/lh
If a circle circumscribing the top of each protrusion 14C and a circle circumscribing the top of each protrusion 14C are assumed, the diameters of the valleys are approximately the same size. The bottle lQb ii protrudingly provided on the end detection lever 10 engages with these protrusions R1114b and protrusion 14C.

The reel unit 5 described above, the intermediate lever 7, the floating lever 8, the end detection lever 10, and the end detection gear 1
4 constitutes a part of a tape end pressure detection mechanism for detecting the end of the magnetic tape being played.

Figure 2, u! J shown in Figures 7, 9 and 18:
On the rear surface of the rib shield 11 and on one side of the end detection gear 14, there are four gears 1.
6.17. Gear transmission tj14f4 consisting of 18 and 19
20 is installed: J, and the end detection gear 14 meshes with the R final stage gear 19 of the gear transmission mechanism. As shown in FIG. 18, the first stage south center 161t of the gear transmission mechanism 20 (however, the reference numeral 20 is not shown in FIG. 18)
It meshes with the waist 22 which is rotatably mounted on the sub-chassis A11. A pulley 23 is integrally formed at the lower end of the arm 22. As shown in FIG. 10, the pulley 23 is rotated by a motor 271 disposed at the rear right end of the chassis 3 via a belt 25. As shown in FIG. It should be noted that the belt 25 is directly wound around a small pulley 24a arranged on the output shaft of the motor 2/I.

As is clear from FIG. 10, the belt 25 is passed through some flywheels 27, which are rotatably provided on the lower surface of the chassis 30 and arranged one after the other. However, the rotation direction of the motor 27I is in the direction of the arrow Mlj, and the pulley 23 is in the direction of the arrow N.
direction, and the bell 1 so that the fly small eel 27 rotates in the direction of the arrows O and P in the direction of 71'+, respectively.
~25 is being passed around.

The flywheel 27 has gear portions 27a and 27b of different sizes on its outer and inner circumferences. flywheel 2
The smaller gear part 27b of the large and small YA parts formed in the reel unit 5 is configured to mesh with the large diameter gear part of the double gear 5f of the reel unit 5 through the front and rear idler gears 28. f. It has been completed. Figures 2, 5 and 9
As is clear from the figure, the idler gear 28
A support lever 30 is rotatably installed at one end of a support lever 30 via a shaft member 30a in a rotatable manner (-1i).
The swing of the support lever causes the double gear 5 of the reel unit 5 to be exposed. In addition, the support lever 30 is biased by a coil spring 30b in a direction in which the idler gear 28 approaches the double gear 5r.
Sea urchin, Ribushi...-I long side of sea △11 has 11r and 1G.
<; At the − of Ishi 19 and b, the first car 33 and the second car
Gear 3/l is attached to rotary motor Y1 (J and C. 1st
The south gear 33 is in mesh with the gear j/16 of the south-center transmission (see Fig. 7, for example), and the second gear 34 f, 1
It meshes with the gear 18 returning from the gear transmission.

Here, l 2 Ki Tonchuden: “l tel W+ 20,”
Woo-1-1 λ22, Booth 23, Belt 25@Do, J, 111 to the first gear 33 and second gear 34.
- A rotation mechanism is configured to provide the rotational force from the motor 24 as the drive gear 1. In addition, according to the said circular Sky 1 verse m 4'4, 7th to 24th, etc.
A rotational force applying means for rotationally driving the first tooth B] 33 and the second wheel 3.1 is configured.

The first gear opening 33 is for making the head stand described in (1) move back and forth. First, let's talk about the structure that connects the first gear and the head stand.

For example, as shown in Fig. 7 and Fig. 18, a pin 33a is placed on the 19th surface of the first tooth 33 at a protrusion 9Q and d3,
A coil spring 35 is applied to the bottle to urge the first tooth member 33 in the direction of the Dy printing brush as shown in FIG. The other end of the coil spring 35 is hooked to a play 1 fixed to the tips of rotational shafts (not shown) of the gears 16 and 18.

As shown in FIGS. 2, 3, 9, and 11, a bent portion 3a extends upward in parallel to the V-shaped chassis at the rear end of the chassis 3, that is, at the rear of the sub-chassis A11.
is formed. As shown in FIG. 4, a control plate 39 made of a rope plate is movably attached (pull) to the 011 side of the bent portion 3i1 on the left and right sides 1ttl.IF ij of the control plate 39 The movement limit position in the direction is called the maximum 11 movement (1'/yaku) of the control plate, and on the other hand,
The movement limit position in the right direction is called the most backward movement position.

The control board is placed on the right side of the IT+++ board 39 on the right 9g1 part.
In other words, the coil spring 40 is
are connected. Almost at the center of the control plate 39, at the end, the bin 33a of the #1 JJ car 33 is engaged.
An r protrusion 39a is formed. The right edge of the protrusion 39a engages with the pin 33a, so that the restraint plate 39 is moved forward by the rotation of the first gear 33. As shown in FIG. 2, FIG. 11, and FIG. II If
A lever B42 is arranged which is connected to the L plate via a coil spring 41 and moves to the left as the control plate moves forward. The right end of the lever B42 has a protrusion 42 that engages with the right edge of the protrusion 39b formed at the lower end of the Vja plate 39.
a has been formed, so that the E-flange 342 also returns to the right as the control plate 39 moves back due to the biasing force of the fill spring 710. Figure 2,
It is clear from FIG. 8 and FIG. Lever C44 was removed from the chassis 3 to rotate automatically.
It is small at the rear end. The front end δ11 of this one collar C44 is
At 30, it is pivotably mounted on a head stand 47 which is reciprocally movable. 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 first gear 33, the three control plates, the coil springs 40, 41, the lever 87'12, and the lever C44.
A head stand driving rock for driving and covering the head stand 47 is constituted by these and related peripheral small members.

Next, the second gear 34 and its related members will be explained. The second gear 34 is for rotating the magnetic head 49' provided on the head stand 47-H.
It is placed further away from the head stand 47 than the gear 33. Moreover, 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 bins 3-1a and 34b are protruded from the rear surface with a pitch of 180°, and one of the stop bins 34a protrudes from the front z-plane of the second gear. (Put this second tooth width through U''.I fdj, both sides 1~horn pin, '3' l a,
3'I b 1. L L'l tall board 39-1
9i: Engages with the right edge of the protrusion 39C protruding from one end of part 1)! do. If jl <C, the control board 39 is applied to both stop bins as J: (1, U).

In addition, a claw member 518 and a spring portion 4A5 il+ are installed near the second gear 34.
4 is the first E3 by the claw part hand Δ and σ spring 81i hand
The ICY direction shown in () is shown in the figure. 1st
The rear surface of J, sea urchin, rib seat sea △ shown in Figure 8 [this 1
．． Movable brake consisting of L w4 plates 1~52'h1/]-
It is d3 in the right direction and is reciprocally movable (=J IJ is τ.I is the second tooth i!3/I of 1) at the right end 811 of the moving plays 1 to 52) 17 and the stop pin 3 that protrudes /
T-claw portions 52a and 52b are formed so as to engage with each other. The claw portion 52a engages with the stop bin 34a at the t1 edge of A, and also engages with the stop bin 34a at its left edge. However, in moving plays 1 to 52, the second gear 34 is 18
It reciprocates by rotating 0° in one direction.

Figures 2, 3 and 9 (shown?,)J, -)i
,,:, A lever D53 formed in the shape of 1.1 is disposed near the left end of the moving plate 52, and
One lever is rotatably attached to the two sides of the chassis 3 at its central bend.
Click J on the let spring 54 (see Figure 3) (J force is applied. Moving plays 1 to 52) to end t;
1- is pivotally attached to the rear end of this lever D530.

Further, the front end of the lever D53 is placed on the head stand 47.
It is formed at the 412 end of a slide member 56 (also shown in FIG. 5) which is reciprocally movable in the rearward direction d3.

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

The magnetic head 49 has a bearing part' fixed to the head base 47.
It is rotatably supported by vJ57 around an axis parallel to the moving direction of the head stand 47, that is, around an axis perpendicular to the magnetic tape contact surface of the magnetic head.

The rotating shaft of the magnetic head 9 is made of a die-cast alloy, and the bearing member 57 that connects to the rotating shaft is made of a resin (4'EI) including glass wear. ing.

The angular position of the magnetic head 490 shown in FIG. The magnetic head 49 is rotatable between a first angular position and a second angular position.

A fan 1/S gear 59 is arranged at a position sandwiching the slide member 56 between the bearing member 57 and the bar.Nine fan 1/S gears 59, J3 at the end of the fan, are rotatably provided at the front end of the bearing member 57. 1
is being pulled. However, the connecting portion between the fan-shaped gear 59 and the bearing member 57 does not impede the reciprocating movement of the slide member 56, and the elongated hole 56a into which the connecting portion loosely fits into the slide member 56 extends in the front-rear direction. It is given a crotch number. Note that the fan-shaped gear 59 is click-biased by a coil spring 60. A bottle 59a is provided protruding from the right end surface of the fan-shaped gear 59), and the bottle is pivotally attached to the slide member 56. In other words, the fan-shaped gear 59 swings as the slide member 56 reciprocates. -1 of fan-shaped gear 59! The a part is meshed with a gear 61 which is fixed to the rotating shaft part of the magnetic head 49 at +1111.

The second gear 34 described above, the moving play 1-52, the lever D53, etc., the spring 54, the slide member 56,
The head rotation 81 for rotationally driving the magnetic head I' 4 <) is reduced by the bearing member 57, the fan-shaped gear 59, the 21st spring 60, the gear 61, and other related small members. ) has been completed. In addition, the head rotation N84 and the above-mentioned head stand drive mechanism are combined.
It is collectively called the control mechanism.

That is, the head stand 17 is caused to reciprocate and the magnetic rad 9 is rotated by the above mechanism. d5, as understood from the previous explanation, the first gear 33 rotates 360 degrees, causing the head stand 47 to move forward and backward, and the second gear 34 to rotate 180 degrees. This causes the magnetic head 49 to rotate by 80 degrees.

Here, we will explain the m1u regulation of the magnetic 'A-Hetsu1'7'IO, following the Ii azimuth adjustment 1r ship (13<.

For example, as shown in FIGS. 5 and 9, a regulating member 64 extending and covering the head stand/I7 in the G direction is fixed to surround the air head 7I9.

The regulating member 6/I is made of a steel plate and has flexibility.

The regulating member 64 is formed symmetrically in the front (((direction J5),
The center? 31(ㅅ) are fixed to the head stand 47, and the two are connected to each other around the central part.
The front extending in the direction of I llj (the image receiving end is engaged with the outer periphery of the magnetic head /19).More specifically, both the front and rear 9v1 of the regulating member 6/I; The part is located at J, which falls from the front of Wiki head/I9, and both ends of the moon are formed by a -1 character 1) (ni 111 (bent), and the two J character ends are The lower side engages with a protrusion/19HI protruding from the outer periphery of the magnetic spatula 1!49, thereby regulating the rotation of the magnetic head 40.

/、i、On one side of the regulating member 6/1 is a magnetic head /19
11) When the magnetic spatula 1 rolls over, open the opening 64 so that the protrusion 49a does not hit the current control part 11) J6'l.
a hX: Qt is spelled. In front of shell control member 6/l (
A pair of screws 65 fitted to the head stand 71I7 are engaged at their necks at both ends. In addition, the regulating member 6/
1) 1) A pair of springs 66 are interposed between the lower surfaces of both rear ends and the head stand 47 to apply an upward bias force to the front 1 (both ends). Only one spring 66 is shown in the figure. These screws 65 and spring 66 constitute positioning means for positioning both the front and rear ends of the regulating member 64. Also, the positioning means and the regulating member 64 constitutes an azimuth adjustment means.'FJ', that is, by tightening or loosening a pair of screws 65, the angle JJII positive at which the magnetic head 49 falls to the two angular positions is adjusted. The structure is such that it can be done individually.

The same effect can be obtained by dividing the regulating member 64 at its center into two parts, each of which is fixed to the head stand 47 in a cantilever shape directly above the magnetic head 49. (9) However, by covering the above-mentioned regulating member with a single member of the front-back symmetrical shape υ(J), the number of parts is reduced, the number of T is also reduced, and the cost is reduced. are doing.

Story 1. For example, as shown in Figure 78, there are about three teeth in the southern part 33 of
1), there are two missing teeth parts 33C and 331 in contrast 1.
+ is set. When the first gear 331.1 is in the static state before its operation, the toothless portion 33c is in the gear 16 (
J5 (part of the gear transmission mechanism 20)
(The star+-t-rega lever described above prevents the southern part 3; 3I+ from biting into the gear 16. On the other hand, the second gear 31!I also has two toothless parts 34C with a 180° bitch. and 3/Id is formed,
When the box 2 gear is in the working U + forward static f state, there is a missing tooth Nl.
371c corresponds to 11=718 (a part of the gear transmission mechanism 20), and J: The right gear does not enter the gear 18, and the rotation of the gear 18 is restricted. There is.

Next, when the first tooth i1i 33 and the second tooth 111u34 rotate, the first gear 33 meshes with the gear 16, and then the second gear 34 meshes with the gear 18. I will explain the Riga method.

As is clear from FIG. 4, at one end of the control plate 39, there is a stop bin 34a for the second gear 3/l when the control plate is not at the return position (rightward movement limit position). 34b
a regulating portion 3 that engages with and controls the rotation flI of the second tooth width;
9(l is formed.

As shown in FIGS. 2, 4, and 17, a prohibition lever 69 is disposed on the left side of the control plate 39, and its lower end is connected to the rear end bent portion 3a of the chassis 3. It is attached so that it can swing freely.

The prohibition lever 69 is formed with an engagement recess 69a that can be engaged with a pin 39e 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 clockwise in FIG. 17. These inhibiting levers 69 and coil springs 70 allow the three control plates to move forward, and when they reach their most forward movement position (leftward movement limit position), the control plates return. l](
Prohibition means for prohibiting rightward movement tl+) is configured.

On the other hand, as is particularly clear from Fig. 7, the first gear J3J
1 in the evening of 'I. L 2. ! +l lever 69)(
The 1-series 100 protrusion 6', which was flown this way, is formed by the I-1 protrusion 33', which engages the 1+ l+.
, the protrusion 3 of the first tooth 33 at the initial movement 11N of the first tooth 33
" is engaged with the engagement protrusion 69 [), and the C inhibition 1 lever 69 is
In Figure 7, Jjl is swung in the opposite direction of i1f, and
The control 21 plate 39 in the movement area is designed to release the prohibition on backward movement.

- [Includes the base 11, the means (consisting of the lever 69, etc.) and the three control plates, and moves the control plate in the backward direction (right side 1).
) A.1 effort A.1 group: Coil spring 40 at f stage doji and partial tooth portion 33h of first tooth middle 33 or gear 16
(A part of the gear transmission mechanism 20) The first gear is moved in the direction of meshing with the first gear (a part of the gear transmission mechanism 20). 18 (a part of the gear transmission mechanism 20), the claw member 518 and the spring member 51a as a means for moving the second gear in the direction of engagement, and the surroundings related thereto. Small parts J
: τ, 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 34 starts rotating.
One edge means for meshing the middle tooth 3/I with the gear 18 is constructed.

As shown in FIG. 2, FIG. 7, FIG. 9, and FIG. 18, the start 1-rega lever 73, which is formed in a three-pronged shape, is rotatable at the center of the front surface of the center part of the subchassis All. ni tori (=I iJ is taken.

As is clear from FIGS. 7 and 18, one end 73a of the start trigger lever 73 is bent rearward at right angles to the IC direction, and the bent portion can be engaged with the first gear 33. There is. More specifically, the pin 33a protruding from the rear surface of the first gear 33 passes through the first gear and also protrudes from the front surface of the first gear by a predetermined amount (!). One end portion 73a is bent so as to engage with this portion protruding from the front surface, and thereby the first gear 3
The rotation of 3 is restricted. A second end 73b formed on the star 1 to the trigger lever 73 and extending to the right engages with the left end of the lever AI2 from the lower surface of the left end. That is, the second end 7 of the start trigger lever 73
3b is engaged with the end detection lever 10 via the lever Δ12, and when the end detection lever 10 moves upward, the star [trigger lever 73]
It rotates in the same direction as shown in 1) in Fig. 8, and the rotation restriction state of the first wheel 33 is released. The 1-to-Star 1 trigger lever 73 has a third end 73c extending downward in the direction 1 to the right, and the third end is shown in FIG. engaged. Magnetic t\rad exchange command rod 75 is chassis: 3
f-1I, which can be reciprocated in the left and right direction on the 1ζ plane of
J-6, consisting of rope boards, with a total length of 1
It is formed in a ゜ shape. First, since the magnetic head switching command rod 75 moves in the direction of 1, the star 1.
There are some that are configured to rotate in the IJ direction. Also, as shown in FIG. 10, a rightward bias force (-) is applied to the third end 73C of the start trigger lever 73 near the head replacement command rod 75.
A coil spring 6 is provided to increase the force of 1"i.

As shown in FIG. 2, FIG. 6, FIG. 3, and FIG. 17, an L 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 pin 77b extending in the vertical direction is fitted at the tip of the movable rod.

The lower end of the bottle 77b is fitted with Ti into a long hole 3C formed in the main surface of the chassis 3 extending in the left-right direction, and
- Engaged with the right end of the magnetic head switching command rod 75. That is, by pulling the movable rod 77a of the electromagnetic solenoid 77, 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. Further, as shown in FIG. 1, an operation switch 8 is arranged on the front side of the housing 2 and to the right of the IFt 1 opening 2a, and one of the operation switches is set to the J It serves as a changeover command switch for operating the 2gaIm solenoid 77. As shown in FIGS. 2, 4, 10, and 17, the slope plate 39 is
The front surface of the Qai bending part 3a (KohahH&flll+ (2
1141 & [b1 direction, -fJ %nechi left and right yj direction J5 A"C freely movable moving part +4 E'S 1 /I
s Ir9. (!If it is being done.

This moving member 811. L llil curved portion 3a is clamped by the opening plate 39;
'h ′? The movable member 81 also moves to the left together with the control plate 39 as the first gear 33 rotates. A coil spring 82 is connected to apply a bias force to the right.

As is particularly clear from FIG. 3, a T-shaped lever 83 is disposed on the right side of the movable member 81, and the rear end of the chassis 3 is located approximately in the center of the movable member 81. The 19th part 83B formed on the lever E83 and extending downward is the movable member 81.
It is connected to the rear end of the coil spring 8/'l via a coil spring 8/'l. That is, by moving the moving part 4A81 in the opposite direction, the lever [83 is moved to the position shown in FIG.
It is designed to rotate in the opposite direction. Lever [F
A bottle 83C extending forward is protruded 8Q at the tip R11 of the second end 83b extending leftward after being formed at 1a.
The bottle has a convex portion 39 formed at the rear end of the control plate 39.
Q and the recess 39h can be engaged with each other.

When the bin 83C is engaged with the concave portion 39h, the control plate 39 can move to its most backward movement position (rightward movement limit position), and when the bin 83C is engaged with the convex portion 390, When the control plate 39 is turned off, the return of the control plate 39 to the most backward movement position is controlled by JΩ. As mentioned in -b above, when the three control plates are not in the most backward movement position, the flllllllll plated regulating portion 39d is connected to the stop bin 34a of the second tooth IT34,
3/lb, 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 1 m solenoid, and
It is fixed to the chassis 3". The movable rod 86a1 of this electromagnetic solenoid 86 protrudes to the left, illustrating the solenoid 1ζ rod i4.

At the tip of the movable rod, there is a bin 86F extending in the front and back direction.
+ is inserted @. This bin 86b is attached to the lever E83.
The tip 9 of the third end 83d which is shaped 1 & and extends upward by n
i: Pivotally attached to the section. Also, when the movable rod 86a is in its protruding position 1" 711 (the position shown in FIG. 17), the pin 830 of the lever E83 engages with the rear end protrusion 39o of the control plate 39. The electromagnetic solenoid 86 operates to operate the key of the automobile in which the cassette deck 1 is mounted, and when the key is in the on state, the movable rod 86a of the electromagnetic solenoid 86 is moved. The leftward movement of the JP II Shrine 81 and the movement of the JP II Shrine 81 into the J
The pin 83c of the lever E83 is connected to the rear end recess 3 of the control plate 39.
J engaged in 911, it's turning. Furthermore, when the key is turned off, the movable rod 86a is pulled out by the urging force of the coil spring 82 which urges the moving part vJ81 to the right, and therefore the pin 83c of the lever E83 is pulled out! , +11111 engages with the rear end protrusion 39g of the 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 for prohibiting the return to the rightward movement limit position and canceling the prohibition when the power supply is received is provided.

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

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, the 10th
As shown in the figure, this shaft member 308 also serves as a pivot shaft for the rotation of the flywheel 27. On the other hand, as is particularly clear from FIGS. 3 and 5, a pair of support shafts 89 extending upward is provided on the chassis 3 in the vicinity of the capstan 30a. An arm member 91 to which a pinch roller 90 is rotatably attached to the free end of the arm member 91 is rotatably attached to the free end thereof.
There is.

-Pinch of SJ [l-La 90 is phantom to capstan 30a and C each)/1Ii2 +' is white 1 and 41. A pin 01a that passes through the arm member in the vertical direction is fixed to the free part of the Day 18 member 91, and the azimuth adjustment of the magnetic spatula l'7i9 is fixed to the upper end of the pin. One end of the spring 6c3 (for example, see FIG. 5) for II is connected. The arm member 91 is attached to this scissor ring 66, and the pinch roller 90 is pushed in a direction approaching the needle 1 stamp.

1-Note I Ko II Cistern 30a, Pinch 1]-La 90, Reel: J Chive 1 to 5, Eye 1ζ Lagia 28
By the peripheral small parts related to these, the magnetic head/'19 has two times! l'l: Tape transport direction VJ which determines the tape transport direction corresponding to the angular position; T stage is configured.

Each pin 9 installed at the tip of the arm 4A91
The upper end of 1a engages with the front and rear ends of the slide member 56. More specifically, at the front end and the rear end of the slide member 56, there are two ridges F formed in the front and back directions so that Pilj faces in the evening direction. )6G is Ω(), and the arm member 91
The bottle 91a is inserted into the slide member 56 in this notch 56c.
Along with the reciprocating movement, either one of them engages in an R-like manner and moves 4g as if moving one time.

A tapered portion 56d is formed at the front edge of the open end of each notch 56c, and the bottle 91a is smoothly guided into the notch 56c by the tapered portion 56d. When the pin 91a engages with the notch 56c, the arm member 91 rotates to the left by a predetermined amount, and the pinch roller 90 moves from the capstan 30a to 1flI2.
6, that is, the pair of pinch rollers 90, are alternatively moved from the capstan 30a by the reciprocating movement of the slide member 56, which is a component of the head rotation mechanism described above. It is.

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 face each other. Further, on the lE side of the protrusion 47a, there is a recess/string connected to the protrusion.
17b is formed.

These protrusions ttl 7 (+ and recess 47h are the head stand 47
When the lever moves to the right, it engages with a pin 30d protruding from one end of the support lever 30 shown in FIG. 3, for example. Protrusion 4 formed in 111 shape
7B engages with the pin 30d, the support lever 30 swings in the direction in which the idler gear 28 attached to the support lever is detached from the double gear 5f of the reel unit 5, and also follows the protrusion 47a. When the recess 117b engages with the bin 30d, the support lever 3o returns to a position where the idler gear 28 meshes with the double gear 5t.

On the other hand, at both front and rear ends of the slide member 56, when the head stand/17 moves to the right, one of the bins 30 (I) of the pair of front and rear support levers 30 is engaged with the bins 30 (I) so that the bins are connected to the head. 11 to enter the recess 47h of the stand 47.
1-J protrusions 56e are formed. However, each protrusion 5
6e engages with only one of the rear sides of the pair of pins 30d in accordance with the 11 movement of the slide member 56 and lu flI. ? In addition, the pair of idler gears 28 selectively rotate the slide member 56, which is a part of the head rotation mechanism, from the reel unit by one return movement.
It is configured so that it can be forced to do lli.

Next, a mechanism for loading cassette halves will be explained.

As shown in FIGS. 2, 6, 12 to 1/1, a 14 sub-chassis B95 is fixed to the upper surface of the right end of the chassis 3. A swinging member A96 extending in the left-right direction is disposed on the chassis 3, and is attached to the sub-chassis 895 and the support protrusion 3d installed at the left rear end of the chassis 3. (It is mounted swingably in the IGa section.

A cassette holder 98 for holding a cassette half is provided at the free end, ie, the front end, of the swinging member A96 at its center in the front-rear direction and is freely swingable. For example, the position of the cassette holder 98 shown in FIG.
From the direction of the arrow S, there are 111 people 4 [-(Isong 1.'l a is entered into the caret small Ruda. Also, from this A person Go divination, 1
:F, 01 member 9 (i KaT 7J L: jf+
Constant angle 1 (r / e IJ 1m UJ L 'C, the force etsu stored in the cassette small folder 98]・The force Ltsu 1 when the half is moved to the 71゛ position) husband v1 ~ The (r/neck) of the small ruda 98 is called the lower I ◇ neck of the Kare 1 to the small ruda. Kare I - the small ruda 9 ε 3 is the lower grade and the tenth l in this case.
It is possible to move between the raised positions.

On the top surface of the cassette holder 98, a movable member 101 consisting of two members, an upper surface member 99 and a right surface member 100, which engages with the cassette half, is mounted in the direction of insertion and exit of the cullet half, that is, the front ( It is designed so that it can be moved freely in the direction of rotation. A bottle 100a is protruded from the right side of the 41-sided member 100, and the bottle beam bushing I7-
Elongated hole 951 formed in the siren r395 in the front and back direction
1 so as to be movable.

On the other hand, a lever "1" is located at the center lower end of the →tub sillage 95.
It is attached to the 02 or its lower end so that it can be swung freely.
The 11th seat of the Kk lever is fitted with 100 al. The lever F102 is moved as shown in FIG.
Apply a bias force of 1 to the member 101 in the Karen 1-Half III 7 direction:] The spring 103 is disconnected. The front end of the right side member 100 is formed with a recess 100b that sinks downward, and when the cullet half is inserted, the right side member 100 moves backward. The swing support shaft 98a falls into this recess 100b, and the cassette holder moves to the lowered position U.

Note that the right end of the swinging member △96 has a thirteenth swinging member.
In the figure, a coil spring 10/l is connected to urge the moving member 10 in the h1 direction when pulling.
1) J let half insertion direction N? By moving the knot holder 98 to the coil spring 1
03 toward the upper 2 lowered position.

As is clear from FIG. 12 and FIG. 14, the moving member 10
The upper surface member 99 of 1 has a protrusion 99c facing the reel hole 106 of the cassette half to be inserted, and the cassette half is inserted so that the protrusion 99C protrudes into the reel hole 106.
A spring member 99d, etc., is provided. In addition,
The protrusion 990 is used for punching, etc., and the upper surface member 99
It is integrally formed with the IJ. In this way, by integrally forming the protrusion 99G on the upper surface member 99,
In order to install the protrusion, it is necessary to take a special part to the upper surface member 99, and the number of parts and the /jth number of parts for installation are on the side edge, which reduces costs. ing.

The upper surface member 99 is also formed with another protrusion 99C that engages with the current half in the vicinity of the reel hole 106. This protrusion 99e is also the above-mentioned protrusion 99C.
Similarly, by punching etc., the upper surface r, +i u 9
9, and the cost is reduced for the same reason as above. In addition, the protrusion 99
e is engaged with a recess 107 called a label T rear formed in the cullet half. In this way, the protrusion 99
By engaging the projection 99e with the recess provided in the cassette half, the projection 99e is firmly engaged with the cullet half.

In the cassette deck, the cassette half is inserted into the cassette holder 98 along its longitudinal direction. In addition, the above-mentioned control, ie, the head stand 4
A control mechanism for causing the magnetic head 49 to reciprocate and rotate 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 (
The mechanism for rewinding the tape (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 four-knob chassis C111, also shown in FIG. 15, is fixed. The sub-chassis C111 extends in the front-rear direction and -1:
A pair of longitudinal operating levers 113 and 117 bent downwards.
1I is attached so that it can freely reciprocate in the front 4ν direction. The front ends of the six longitudinal operating levers, that is, the operating ends, are spaced 19 on the left and right (J head apart (1131'), and there are 11 of them; ;-1QiJ pressed P/, n button 115.116
(11th A1) is taken A・1 (Jare-(Iru. Bottom)
J
The operation is performed by V), and the longitudinal operation lever 11/l, which is moved upward by 6p (), is RE W in the forward movement of A.
This is a work by faJ. Each of these longitudinal operation levers 113 and 11/l is arranged on one side of the magnetic head 7I9. In addition, both hand-operated levers 113.11
71 are each directed forward at a high angle by coil springs 118 and 119. As is particularly clear from FIGS. 7 and 15, the longitudinal operating lever 113
and rear end 81 of 11/l (on the left side, when the head stand is moved to the right, there is engaged with 1;7
When the head stand 47 is moved to the right, the head stand can be moved by pressing either of these longitudinal operation levers 113°11/I. 47 is IIh constant l0 (move the horn toward U to tl, this is very 1-C magnetic head/'1
9 or N1 distances U from the magnetic tape. Further, when the head stand 47 is thus moved in the predetermined direction 5) by operating the longitudinal operation lever, the protrusion 47a formed on the head stand/I7 is moved to the idler gear 2.
As a result, the idler gear 28 is engaged with the pin 30d of the support lever 30 that holds the double gear 5 of the reel unit 55. It should be noted that, although this may be a little different from the story 1: I, for example, as shown in FIGS. When the head stand 47 moves, the right end of the head stand 47 engages with the claw member 123 and pushes it open, and the reverse rotation prevention state of the claw part (reels 1 to 50- by 2) is released. It looks like this.

Returning to the original topic, as shown in FIGS. 2, 3, and 16, a plate 124 is located on the right side of the rear end of the bent portion 3f formed at the left end of the chassis 3 in the front-rear direction. Plate 12 can be moved freely in the
A ring 125 is connected to the upper end protrusion 124a of the plate 1 to apply a forward bias force to the plate 1. The lever H126 formed in a T-shape has J5 in its center.
1.As is clear from FIG. teeth,
The rear edge of a protrusion 113C extending downward and protruding from the longitudinal operation lever 113 described above is an abutment opening. Further, on the front edge of the second end 126b formed on the lever H126 and extending upward, there is a rear edge of a protrusion 114C that is protruded approximately to the left of the longitudinal operating lever 114.
14. That is, by pressing the longitudinal operating levers 113 and 114, respectively, the levers 1-1126 are activated.
is shown in FIG. 16 in the counterclockwise direction and M! ; It rotates in the f direction.

A lever 1129 formed in a substantially dogleg shape is arranged in front of the play i-12/l, and the lever 1129 is rotatably attached to the outer bent portion 3f of the chassis 3 at its center bent portion. [It's being pulled. 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) 112.
6 and extends forward by a third end 12 (:
The second end 12 of the lever 1129 is slidably fitted into the elongated hole 126d formed at +c.
<) C1, L downwards I (extends toward J).

As shown in FIG. 2, FIG. 3, FIG. 10, and FIG. 16, a pair of reel levers 130 are each held between a pair of reels 51 and a flywheel 27;
are arranged to extend in the left-right direction, and are swingably attached to the sheath P-shi 3 through the bin 130a at approximately the center thereof. The left end of the swing lever 130 is the lever 1
It is pivotally attached to the tip of the second end 129C of 129. Further, a gear transmission mechanism 135 consisting of three gears 132, 13-3 and 13/l meshing in series is mounted on the lower surface of the right end of the swing lever 130. The gear 132, which is the first stage gear of the plane IO transmission mechanism, is capable of meshing with the 81'a part 272 of the pair of flywheels 27, and the fI4 final stage gear, 11'a13/l, is It is designed so as to mesh with the small diameter gear 2 formed on the rear gear 5f of the reel 1 unit 1-5.In other words, 1 arrangement manual 1' + lever 113 and 11/l 1 through the lever 11126.
The 6th shift lever 130 swings to the 487j and front horns, and the I reels I and 5 placed at J, S (Suman, and Front 1) are selectively rotated at high speed!ll/, -t! It is.

J shown in FIGS. 2, 7, 15 and 16,
Sea urchin, pincers (to *kake bar 113 and 11/l) 1.
'J Riruri fshi t-shi 111 has the eiryo ryo handitsu 1'
The lever is located at the "P h" position and the lever is placed in the 1' direction (front/rear/IJ direction).
1/ヱAn intermediate lever 138 is installed. A spring 139 is connected to the intermediate lever 138 and applies a forward bias force (!L50) to the intermediate lever 138.As is particularly clear from FIG. There are 13 pins 138a protruding from the lower surface of the end, and the pins are arranged in a manner corresponding to the bottles.
The pick-up white 71 is merged into a long hole 140 formed in the lever 1'13.11/l and extending in the front ff2b direction. There is one bottle 1388 on the right side of the center part 9i of the elongated hole 140.
δj insert! ? 6[! ! ] part 1/10a is formed. Here, the intermediate lever 138 is supported by its front end side.
411381) as the center at a predetermined angle (F
It's starting to look like this. In addition, a coil spring 139 which forces the intermediate lever 138 forward IJ (=J) is stretched so as to be inclined to the right from the rear in the nr1 direction and to the right. Axis 13
With 8b in the center, it is also moved in the opposite 0.1 meter direction (=J) as shown in Figure 15.?141, both hand-operated levers 113. The pin 138a of the intermediate lever 13E3 fits into the recess 1710a of the elongated hole 140 when the intermediate lever 13E3 is pushed (movement to), so that the intermediate lever 138 moves rearward. A pair of longitudinal operation levers 113, 11
4, only one of them has been moved forward, but the rear right edge 14011 of the elongated hole 140 formed in the other longitudinal operating lever is still in contact with the pin 138a, so the intermediate lever 138 41 movement (movement in the 112 direction) is not performed.

Although 8T is not mentioned, there is a longitudinal operation lever for FF operation.
When either one of the longitudinal operation levers 113 and 114 for RrE W operation is moved forward, the mechanism 414 that locks this with the stomach in the 11-movement position moves to 39.
1 nore °C. In addition, when the 1-tsuku machine (j4 is used), the 1st lever is locked in the i+, *h position, and the longitudinal operation of one of the above is activated. Also, if either of the longitudinal operation levers 113, 114 is pressed, the lever J1 installed at the rear of the two longitudinal operation levers
42 is shown in Fig. 15 as J-3t is pulled up and swings in the direction of g1. Switch 1/I3 is activated.

For example, it is clear from FIG. 2 and FIG. 6)! "It directly engages the end 96a and moves 1q.

This intermediate lever 13ε3 swings 8 by moving forward.
This is for pushing the part 96 rearward and moving the saw set holder 98, which is in the lower position as described above, to the raised position.

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

As is clear from FIGS. 2 and 6, the subchassis [
A bracket 1/16 is cut out on the right end surface of the 395, and two switches 147 and 14 are attached to the bracket.
8 is installed. The switch 147 is used to smoothly switch the power to the cassette deck and the tuner disposed near the cullet deck. Further, the switch 148 is used to operate the motor 24. Both switches 147 and 148 are mechanically activated when the cassette half is inserted into the cassette holder 98.

As shown in FIGS. 2, 7, and 18, a switch 149 for switching between FF and REW is fixedly installed on the front surface of the left end of the sub-chassis A11. 1f1491. L, said jJ-'7jitoshi/\
15 ノ+14 1. ,,l (-11) ra ne
Move forward - 1-5 2 h<
Ito 100 riku.

Especially J, 1)(#)+flriru.

: L, J shown in FIG. 1. , there is a power supply 4 to the Karen 1 headset.
The switch 150 of V) which cut off the 1ξ supply is fixed and UJj
When the switch 1, i+ t7H lever 138 is turned on (to move backward), the movement starts.

Please refer to Figures 19 to 26 for the operation of the J-height deck (with the above configuration).
Cover the explanation in 1.

EL", part 2 of the housing 2 shown in FIG.
Insert the forceps 1-half 155 (shown in Figure 19) from a, and hold the current half in the cassette 1-small holder 98 as shown in Figures 19 and 21. As shown in the figure, the cullet half 155
When the cassette is inserted into the cassette 1-boulder 98, the right side 8 [(100) moves rearward, and the cassette 98 (the swinging shaft 98a of the holder 98 moves to the right side 0100). 11llY (248 fh f), 2
J, kalet half lma7flj A Ii) i
i shiko [tsu1~ is done. .

In this case), for example, the switch 71/17.113 shown in Fig. 16 is inserted into the corresponding switch 1-set 1. When the power is turned on, I hear the motor rotate at 24 rpm.
Ru. When the motor 24 rotates, the small pulley 24a moves in the direction of arrow M, as shown in FIG.
11 In the direction of arrow N, a pair of front and rear small fly eels IJ
It is rotated roughly in the directions of arrows O and P. Therefore, -ta 4
A pair of reel units 1 are connected to each other through idler gears 28 of
-5 or rotate each arrow Q and R anno 1^+ (i110 shown)! 115 counts. In this way, the pair of reels 51 and 5 rotate in opposite directions, so that the
The slack of the magnetic tape in 55 is taken up.

When the slack in the magnetic tape is wound up and a predetermined tension is applied to the magnetic tape, all parts of the configuration N'=shrine of 5 are transferred to the reel unit 1 shown in FIG. 11 except for the double gear 5f. are fixed by the reaction force of the tension, and only the double gear rJ) continues to idle with respect to these fixed openings via the felt plate 5h.

Therefore, it is difficult for the magnetic tape to be transported while being applied with the above tension.

On the other hand, for example, the construction shown in FIGS. 7 and 18.

The second detection gear 17'I detects the rotation of the motor 24.
It is rotated U through the tooth rII transmission side 20 in the opposite direction t1bj shown in FIG. 18(). Therefore, the bottle 10b which is protruded 1Q by the detection lever 10 is rotated as the detection gear 14 rotates.
/I b is moved to the top. Here, as is clear from the above 71) s +, arm 5 of each reel] knit 5! is f17It: L. Therefore,
The intermediate lever 7 does not operate, and there is no doubt that the pin 10b of the end detection lever 10 is fixed to the IJIII-shaped protrusion 14b and can no longer slide. Therefore, En 1: The bottle 10b of the detection lever 10 comes to rest at the top position of the mountain-like protrusion 14b, and thereby the protrusion 14C of the end detection gear 14
engages the bin 10b. Therefore, the end detection lever 1
0 moves upward and the star i via the lever, 4.12
The lever 73 rotates in the direction shown in Figure 18 ( ). Thus, start 1 - rig lever 73
The rotation was caused by the fact that the bottle 33a was engaged with one end of the )! ;l fl, 11 and 4 l gJ
The wheel 33 becomes rotatable, and is rotated in the direction shown in FIG. 18 by the biasing force of the coil spring 35. J: Then, the partial tooth portion 33b of the first gear 33 meshes with the gear 16, and the "A 1 +- mountain begins to rotate. As the first gear 33 rotates, &! I shown in FIG. 17 etc.
The control plate 39 is moved to the left, so the head stand 47 is moved to the second position.
J shown in Figure 2 moves to the right and the magnetic head h9
comes into contact with the magnetic tape. In addition, when the Ru movement position (left direction movement #) + UJ world illumination) is reached, 11 camp 39,
If, II, the engagement recess At! of the inhibition lever 69 in the bottle 39e protruding from the tall plate! When 69a is engaged, its backward movement (movement to the right) is prohibited. As the first gear 33 rotates, the moving part +J 81 also shown in FIG. 17 is moved to the left as shown in FIG. 23. Therefore, as shown in FIG.
person 1 pudoi f lightning eyes)' / 1 maid 86 1)
1 movement [-1 Tsudo 80a or push. Irei). This movement f1
Then, the pin 83G of the lever 83 engages the recess 39h formed on the right end of the control plate 39. Therefore, the most of the production 11 plate 39 is the 7th round (right side). It becomes possible to move to the direction movement limit A17).
1- Attach the control hole plate 3 to the engagement recess 69a of the valve IL lever 69
When the bottle 39e of No. 9 enters, the prohibition lever 69 is rotated by a predetermined amount () in the downward direction as shown in FIG. ) is in the off state and 1 is in the off state. lJ Miko I switch 1/13 is in the off state? +3, 1/no, As shown in FIG. 22, the front idler gear moves to 111 by moving the head stand 47 to the right
10,000 reels l leek 1-5) double gear 5 “from 1
11+2 L! The reel unit 5 on the 1u side is closed and only the reel unit 5 on the 1u side receives the 'I't+I! There are 4 times. I1o,
This operation is carried out between the yoke/17a formed on the head stand/17 and the recess 717b, and the slide 111 (installed on the shrine 536).
For the phase 2'74'l with the protrusion 56e, which has been described previously (in detail in the explanation of the structure), it is expedient here. In addition, Fig. 22 shows sword J: sea urchin, head stand 4.
7, the rear pinch roller 90 is brought into contact with the capstan 30a, while the front pinch roller 90 is moved 1i away from the corresponding capstan 30a.
It is maintained in a state of escape. This is the front pinch 1
]-Bin 9 protruding from arm member 91 that supports rack 90
18 is fitted into the notch 56C of the slide member 56. Similarly, as shown in FIG. 22, by the rightward movement of the head stand 47, the pair of pawl members 123 that had been engaged with the reel unit h5 move away from the reel unit 11 nlf t! L is praised.

In this way, tape transport to the FWD side takes a while! 1f5, and reproduction 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 transport direction is pressed, the electromagnetic solenoid 77 is turned on, and the movable rod 77a of the electromagnetic solenoid is pulled. Therefore, the I41 air head switching command (J) causes the C star 1-1-trigger 1 lever 73 to rotate in the O'IM+ direction as shown in FIG. J, the first gear 33, whose rotation was restricted, rotates! JI
? 'i'l llu doh, coil spring 35 f
- J to the J force and 1 to the 1st F3 figure ll;! l
All rotations in the direction of force are removed. , J, 1st tooth middle 33
The partial tooth portion 33b meshes with the gear 16, and the first gear begins to rotate. When the first gear 33 starts rotating, the protrusion 33 protruding from the first gear engages with the engagement protrusion 69b of the prohibition lever 69 (see FIG. 17), and the prohibition lever 69 (see FIG. 17) Figure 117 shows a counterattack that turns in one direction.
) to control the engagement recess 69a of the prohibition lever.
The engagement of the i plate 39 with the pin 39e is released, and the control part 1 plate 301: is returned to the most backward movement position (rightward movement limit position) by the I-1 force of the L coil spring 40. By returning the control plate 39 to the most backward movement position n, the head stand 47 moves to the left, and the magnetic head 49 is removed from the magnetic tape.

153=When the control plate 39 is at the maximum forward movement position +nJ movement limit position), the
(for example, as shown in the fourth figure), the stop pin 3/la is engaged with the second gear 34, and the second gear 34 rotates according to the standard 1. II has been done. This restriction is released by returning the control plate 39 to the above-mentioned R return position, and for example, the claw portion t45 shown in FIG.
1a and the spring member 51b, the second gear 34
is rotated clockwise as shown in FIG. Therefore, the rear part of the second gear 34 meshes with the gear 18,
The second gear starts rotating. Due to the rotation of the second gear 34, the stop bin 34a that is pushed against the second gear engages with the claw portion 52a of the moving plate 52, and the moving plate is moved to the left. The magnetic head 49 connected to is rotated 180° toward the REV side. Further, by moving the moving plate 52 to the left, the switch 14
9 is switched from the FWD side to the REV side.

Due to the rotation of the second gear i, 31, the stop pin 34a of the second gear is rotated by the protrusion i formed on the control plate 39.
r)c (Ti', 17 See Figure W) M t'l
to LJ, R'x il+11211 plate (, 1, J to the shallow base 1/bin is moved to the specified 'lIIIR1 horn f million. 2nd time 371 completes 1ε30° simultaneous rotation r Rikunkoro, Su:... Nbubin 3Aa is still in control
+fj 3 G protrusion 39 C7) + H et al MI I
Then, the bottle 33a of the first three-round ball engages with the protrusion 39a of the control plate 339, and the control plate 39 is moved in the direction of Movement limit (i
11-
It is locked by the lever 69.

By one movement of the control board 39, the head stand 47 moves to the right again, and the magnetic head 49 contacts the magnetic tape 1a. Also, the MI''-1-switch 143 is also in the Δ- state as described above. Fru.

Further, the slide member 56 is moved forward by the leftward movement of the trays 1 to 52, and thereby,
As the head stand/17 moves to the right, the rear idler gear 2
8 is Ii from reel units 1-5! The idler gear 28 located nine positions ahead is engaged with the reel unit 5, and only the front reel unit 5 starts rotating. Further, the front pinch roller 90 is held in contact with the capstan 30a, and the rear pinch roller 90 is also maintained in a state where it is removed 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 steps 1 to 34 of the second gear 34
This is the same as the tape transport direction switching operation from the FWD side to the REV side, except that b engages with the pawl portion 52b (shown in Figure 18) of the movable plays 1 to 52 to move the movable brake l to the right. It's almost the same, so it's not correct.

Next, the f of the J mechanism automatically switches the tape transport direction.
I will explain about J+ work.

For example, when tape transport to the FWD side is completed, a predetermined tension is applied to the magnetic tape at the end, and the double gear 5f of the constituent members of the reel units 1 to 5 shown in FIG.
All members except for are fixed by the reaction force of the tension. J: So, only the double gear 5f continues to idle with respect to these fixed members via the flute plate 5h. When the tape is being fed to the FW D side, the above fixed The member BY to be rotated is also rotating except for the arm member 51.!The arm part 05i receives the intermediate lever 7 via the floating lever 8 due to the rotational force (=l force 1). As shown in Fig. 22, the intermediate lever is biased in the counterclockwise direction.This causes the rear end of the intermediate lever to pivot. The bottle 10b protruding from the end detection lever slides in contact with the convex protrusion 14b of the end detection gear 14, and the protrusion 14c of the end detection gear However, when the members of the reel unit 5 except the double gear 5f are fixed at the tape stop position, the force that forces the end detection lever 10 (= The protrusion 1/lc of the end detection gear 1/1 engages with the pin 10b of the end detection lever.Therefore, the end detection lever 10 moves upward, and the start 1 to trigger levers are moved through the lever A12. When 73 is pulled C as shown in FIG. 18, it rotates in the h1 direction.

In the following, the tape transport direction is switched by exactly the same operation as the switching operation of the tape transport direction from the FWD side to the REV side by pressing the switch mentioned above. Note that automatic switching of the tape transport direction from the REV side to the FWD side is performed in the same manner as described above, and will not be described in detail.

Next, FF operation (tape fast forward operation) and REW operation (
(Tape rewinding operation) is explained below.

For example, when performing FF operation during tape playback, as shown in FIGS. 24 and 25, the longitudinal operation lever 1 for FF operation is
Press 13 to move backwards and close the mouth. .

Then, the Mikoto switch 14 is activated via the lever J142.
3 is turned on. Further, the longitudinal bin 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 a predetermined amount (leftward). The contact between the magnetic head 49 and the magnetic tape is loosened.

As is clear from FIG. 25, when the longitudinal operating lever 113 is moved backward, the protrusion 1]3C of the longitudinal operating lever engages with the protrusion 126 of the longitudinal operating lever 113.
+1. 1: is given to S ++ l Bunno.

Therefore, the lever 1129 similarly swings in the direction d'31J shown in FIG. In Figure 26, A31J is rotated in the anti-114 direction. Therefore, the first fQ gear 1332 of the Yamanaka transmission mechanism 135, which is connected to the first working lever, meshes with the gear portion 27a of the rear flywheel 27, and the final stage gear 134
is applied to the small diameter gear portion of the double gear 5f of the reel unit 5 of II 73. On the other hand, by pressing the longitudinal operation lever 113, the head stand/I7 can be moved in one direction.
A pair of eye 1z lugia 281. i-reel unit
5 to 11 females are delighted. J, 5 rotates at high speed to the rear reel unit 1, and the tape is rapidly forwarded.

When performing a REW operation, this is done by pushing the REW operation longitudinal control lever 114. J, that is,
The protrusion 114C of the longitudinal operation lever 114 is connected to the lever 112.
6, and the lever 1 is engaged with the second end 126b of the lever 1.
As shown in FIG. 5, the first [Ω gear 132] and the final [Q gear 134] mesh with the flywheel 27 and reel unit in front of the person. /, E A3, Leftward movement of the head stand 47 is achieved by the tapered portion 114a of the longitudinal operation lever 1]/l engaging with the longitudinal pin 121 attached to the head stand 47 by 3Q fJ.

When the tape reproduction is finished and the half-circle is ejected, the longitudinal operating lever 113 for FF operation and the longitudinal operating lever 11/I for REW operation can be pushed to the same position nl.

By simultaneously pressing the two longitudinal operating levers, the intermediate lever 138 (for example, shown in Figure 24) moves rearward, and the bin 138 d protrudes from the upper surface of the 19th end of the intermediate lever.
h'i engages with the left end of the swinging part (for example, shown in FIG. 6). Therefore, by the completely opposite operation when loading the forcegoto half 155, the cassette half is delivered to the listener by J:
It is projected to the retrieval position. Also, for example, the 24th
Since the switch 150 shown in the figure also operates, the electromagnetic solenoid 86 (see Figure 23) is in the OFF state.
The lever IL-83 is activated by the action of IL-82.
is returned to the state shown in FIG. Therefore, the lever "83
The bottle 83C installed in the top plate 39 can be secured to the convex portion 390 formed at 11 on the right end of the main board 39. In response to this, the control board 39 is moved backwards fff times (rightward movement f
) + limit position) is prohibited.

In other words, the stop pin 34a of the second/#1lT34 is maintained in a state where it is engaged with the restriction N (39d) of all the formation plates 39, and when the power is turned on again, the second gear 3/I is This prevents the tape from rotating and unnecessary switching of the tape transport direction.

As mentioned above, the operation of turning off the electromagnetic solenoid 86 described in "O)" is also performed when the key of the automobile in which the relevant deck is mounted is turned off.

Effects of the Invention As detailed above, the cassette deck according to the present invention includes a movable member (upper surface part 99) that engages with the cassette half and is movable in the insertion and ejection direction of the cassette half.
The cassette half is provided with a protrusion (99e) that engages with the recess (107) near the reel hole of the cassette half.
It is blocked. Therefore, there is no fear that the cassette half will fly out from the deck body during ejection, and the cassette half can be reliably positioned at the position where the listener can retrieve it.

[Brief explanation of the drawing]

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 cassette deck, and FIGS. 3 to 8 are partially detailed perspective views of the internal structure, Figures 9 and 10 are plan and rear views of the internal structure, Figures 11 to 18 show details of the internal structure, Figure 7, and Figures 19 to 26 show the operation of the cassette deck. FIG. Explanation of symbols for main parts 1...Cassette deck 2...Housing 2a...Opening 3...
Chassis 3a, 3f...Bending portions 3c, 5m, 56a, 95a, 126d. 1/'IO... Long hole 3 d... Support j, 'I protrusion nlI 5...
...Reel 1 to 1 5a...times i11λ spindle 5b...Reel 5C...Color
5d... Bushiko 5e... Enlarged i\ section
5[...Double 1゛a5o, 50.
30b, 35. 110. 711°60, 70.
76, 82. 84. 103°10/l, 11
8. 119. 125. 139...Coil spring 5h...) I~plate 51...Arm 5j, 5k...Washer 7...Intermediate lever 7t U, 8a, 8b,
10b, 30d, 338°39Q, '14
a, 77b, 83c, 86b. 91a, 100a, 129b, 130a. 138a, 138d - Bins 7b, 6/IF)... Openings 7G, 56G... Notches 8... Idle lever 10...] - End detection Lever 10a, 1/Ic, 33f,
39a, 39b. 39c, 42a, 47a, 49a, 56e. 81a, 99c, 99e, 113c. 114C... Protrusion 11... Sub chassis Δ 12... Lever Δ 1/1... End detection gear 14a, 39h, 47b, 100b. 140a...Protrusion 1, Ib...Protrusion 16.17, 18.1'9. '61,132°133.
134...Gear 20.135...Gear transmission 1j3 structure 22...
... Worm 23 ... Pulley 24 ...
...Motor 27Ia ...Small pulley 2
5... Belt 27... Flywheel 27a, 27b... Gear part 28...: Idler gear 30... Support 1 lever 30a... ...Capstan 33...
...First tiJ wheel 33b...Partial tooth portions 33c, 33d, 34c, 3AcJ...-Toothless portion 3/
I...Second gear 34a, 34b...Slug pin 36.12
'l...Play i~39...Control board
39d...Regulation section 39g...
Convex portion 42... Lever B44...
... Lever C47 ... Head stand 49 ...
-Magnetic heads 51a, 123...Claw members 51b, 99d...Spring member 52...Moving play 1-52a, 52b...Claw portion 53... ...Lever D 54.66...Spring 56...Slide member 56d, 113a, 114a...Tapered portion 57...Bearing member 59... ...
Fan-shaped gear 64... Regulation! , 11 members 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 Rondoor 7.86
......Electromagnetic solenoids 77a, 86a...
・Movable rod 79... Operation switch group 81.
...Moving member 83... Lever E

Claims (1)

[Claims] a moving member that engages with the cassette half and is movable in the insertion and ejection direction of the cassette half; bias means that applies a bias force to the moving member in the ejection direction; and a raised position that holds the inserted cassette half. a cassette holder movable between a lowered position for positioning a held cassette half at a performance position and biased toward the lowered position by movement of the moving member in the insertion direction; The cassette deck is characterized in that the cassette half is provided with a protrusion that engages with a recess in the vicinity of the reel hole of the cassette half.