JPS5853044A - Detection mechanism for stop of tape running for tape recorder - Google Patents

Abstract

PURPOSE:To stably and surely detect tape running stop, by substantially making the energizing force of an automatic stop lever equal for forward and reverse running through the use of a detection lever. CONSTITUTION:When a tape runs, a detection lever 60 is turned clockwise with a friction member 102 of a reel stand (not shown) and an automatic stop mechanism ASO lever 59 linked via a pin 601 is energized counterclockwise. When the tape is stopped, a release lever 61 is turned clockwise with a latch 595 of the lever 59 to perform the ASO function. A distance (a) between a shaft 593 of the lever 59 and the pin 601 of the lever 60 and a distance (b) between the pin 601 and a shaft 603 are almost made equal and also a distance (c) between the shaft 593 and a pin 591 and a distance (d) between the shaft 603 and a pin 602 are almost made equal. Thus, sure ASO operation can be attained.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention is based on a tape running stop detection mechanism of a tape recorder, and is designed to perform more stable and reliable operation.

As is well known, a tape recorder that allows reciprocating recording and reproduction is called an auto-reverse device. In other words, this auto-reverse device is capable of automatically recording or playing back in the reverse operation without having to worry about loading the tape or setting the operating section at the end of the tape in the forward operation, making it possible to record for long periods of time. It is especially useful when regeneration is required.

However, such auto-reversing devices are still in the early stages of development and have various points to be improved. There is a strong need to develop a tape recorder having an auto-reverse device that is economically advantageous and reliable in operation.

This issue was made based on the above circumstances, and 1w9
To provide a very good tape recorder tape punching stop detection mechanism which is capable of stably and reliably detecting a tape picking stop with a configuration of I111 and 4) which is suitable for use in a tape recorder having an auto-reverse mechanism. With the goal.

Before explaining one embodiment of the present invention, the basic structure of an auto-reverse device explained in this embodiment will be explained below.

That is, in FIG. 1X1, the main chassis of the single-contact cassette tape recorder is approximately box-shaped, and the various mechanisms described above are installed on the # ridge, upper and lower portions, and left and right portions 111. And the main chassis J in Figure 1
The operation part 2 is provided so as to protrude forward from the lower end of the holder, and the control part 2 includes a B for ST, D, C, and C from the left end in FIG.
TOP operator 2a, @ RIIW % operation xb for return,
PLAY(R) operator je for reverse direction (ri motion) playback;
REC operator jd for recording, PLAY (F) operator 2 for forward (forward) playback, FF operator 2f for fast forwarding
, each moves in the direction of arrow (A) y3 when the PAUSE operator 2f for pause (/-) is pressed.

They are arranged so that they can be pressed and operated in a manner such that they can be pressed and returned in the direction of the arrow 0), and each drive system can be brought into a driving state via a sweeping lever (not shown). has been done.

In this case, each of the above-mentioned sweeping levers is arranged so as to be able to reciprocate in the vertical direction in the drawing on the side surface in FIG. It is shown that it is engaged and locked in the pressed state by the suppression operation. The sweeping lever of the 5TOP% sweeper 2a is not locked, but engages with the locking mechanism so as to release the operating levers of the other sweepers in the closed state. Also, the above PAUSE! The sweeping lever of I + 2 operates independently without any connection with Cook S*.
IIJa's wL1 shown in the figure is disposed on the middle side of the diagram, and engages with the Shio-Detsushi island mechanism, and is brought into the pressed state by the first pressing and sweeping operation, for example, temporarily in the regenerating state. 4. Forcing Ie7 to stop. Then, the locked state is released by the jf-th suppression sweep, and the device functions so as to return to the playback state, for example.

The REW and FF operating levers jb and jf function to selectively drive a forward/reverse switching mechanism (not shown) of a high-distance feed system to sweep the tape in the forward and reverse directions at high speed. .

In addition, the above-mentioned PRAM (R) and PRAM (F) sweeper zc.

Each operating lever in 2 @ selectively drives the forward/reverse switching mechanism of the constant speed feed system, which will be described later, to cause the tape to run at a constant speed in the forward or reverse direction. , (t
)) The head slider J3, which is reciprocatingly slidable in the direction, is driven to record and reproduce the tape mounted on the wrinkled head slider 13, and the tape 4 and the like are brought into contact with a predetermined surface of the tape, and the same pair of pinch rollers 5 By selectively bringing the capstan 7.6 into contact with the pair of capstans 7.8, it functions to be in the playback state in the forward or reverse direction. Here, the upper recording/reproducing head 4 adjusts the azimuth angle accurately to enable playback (recording) in the forward and reverse directions of tape running, that is, forward and backward movements, and tracks corresponding tracks on the tape according to the tape running direction. The turtle's head is moved so that it can come into contact with the head, and the details of the configuration and operation of this head moving mechanism 9 are as follows.
If it is a normal tape recorder, it only needs to be able to play (record) in the forward direction, so one OPLAY 9 output is fine, but with the tape recorder that is capable of auto-reverse, which is the target here, it can play in both forward and reverse directions. Since it is necessary to perform playback (recording) in the forward and reverse directions, independent
It is a turtle with 11 PLAYs.

Here, if you operate only one of the two PLAY controls, you can play (record) only in that direction.
, so-called auto-reverse can be achieved when both are operated at the same time, and in the case of normal playback (recording), PLAY! is in the forward direction. It is sufficient to operate only If'1.

9. The REC operator 2d in the center of the diagram is the PLAY
The control lever drives the silver quantity system so that when operated in conjunction with the sweeper, it is possible to record in only one direction (forward or reverse) or back and forth by auto-reverse.Furthermore, In Fig. 1, what protrudes from the center of the main chassis J are the left reel stand 10 and the right reel stand 1.
1, each of which is connected to an automatic stop mechanism, a reciprocating operation switching mechanism, etc. In addition, in the upper part of the main chassis 1 in FIG. 1, there is a tape counter 12 connected to the right reel stand 11, a motor IJ that serves as a power source for each drive system, an auto reno power supply number limiting mechanism, and a manual reverser. An operation lever 14.11 of the mechanism is installed. Also, on the left side of the straight plane portion 1a of the main chassis J in the figure, there is a cassette lid lock slider 16 that is long in the vertical direction and slides in the longitudinal direction. This cassette lid lock slider J#, which is freely supported, is moved and slid by the operation of the 5TOP operator 2a to open the cassette lid (not shown).For example, in the playback state, 11TOP! I Sakuko S
When the 8T (W) operator 21 is operated in the stopped state, the ejecting operation is performed, which is the so-called dasol eject.

Next, FIG. 2 shows the state seen from the back side of the main chassis 1. That is, from the straight plane part 1a of the main chassis 1, a plurality of columnar bodies 7F
, -, IF is provided in a protruding manner, and a sub-chassis 18 is attached to the distal end in the protruding direction so as to be substantially parallel to the mosquito-bottom-shaped flat part 1a.
A pair of bearings 211 and 112 of 7 rye wheels are provided with the capstan 1.8 as the axis.

t, and the inflatable and soft flat surface portion 1a of the main chassis 1! A tape running drive mechanism XZ as shown in FIG. IIE3 and the REe operator sav! □ RIHC lock mechanism 23 and automatic stop mechanism (hereinafter referred to as MU 80 mechanism) Li
etc. are installed respectively.

Here, Fig. 4 shows the forward/reverse switching mechanism of the constant speed tape feeding system taken out from Figs. 1 to 3 above. That is, what is indicated by the dotted line in the figure is the head slider 3, which is shown in a simplified manner for the sake of simplicity than what is shown in Figure 1. A number of protrusions 31 and 3k are formed in the localized sound.The protrusions s*msb of the head slider 1 are arranged in parallel on the lower surface of the head slider 3 and are indicated by two-dot chain lines in the figure. It can be engaged with the engagement pieces six and zgz formed at the lower part in the figure of the through holes 251 and 261 formed at the center of each of the left and right playback sliders 25 and 26.Here, the upper left and the right playback slider zti*xg have a pair of elongated holes 21iR, 214 and 263 .
By inserting the guide pins xttti, zttg, 261i, 26g formed in the main chassis 1 into 264, respectively, the head slider 1 can freely slide back and forth in the directions indicated by the arrows in the figure, similarly to the head slider 1. is supported by

The left and right playback slides xi, xg are the PLAY(R) and PLAY(F)! I work +2C92
・0 % PLAY (R) and P are slow-acting IA% via each sweeping lever and a spring (not shown).
LAY (F) When the operator 2C12 is operated, it is biased in the direction of the arrow (O) in the figure.ti
, the left and right playback sliders 25°2C control round idlers and gears (not shown) 111I that transmit the rotation of the pinch roller 5.6 and the motor J3 to the left and right reel stands in, i1, respectively. It is something to do. That is, when the left playback slider 25 is slid in the direction of the arrow (0) in the figure, it presses the pinch roller I against the dP reel stand 7 (see Figure 1) and rotates the left reel stand 10 to release the tape. Let them take care of you,
The tape is played back when it runs in the reverse direction. In addition, when the right reproducing slide finisher 1- is slid clockwise in the figure, it presses the pinch roller 6 against the capstan 8 (see Figure 1) K, and rotates the right reel stand 11 to wind the chip. Let me take care of it, Chee! Playback is performed in the forward direction.Whether the tape runs in the forward direction or in the reverse direction is determined by selecting which of the right and left playback sliders 26. It is determined by the direction in which it is moved.

Here, a stop portion 257 having a tenor arm is formed at the upper right portion of the left reproduction slider 250 in the drawing. In addition, the upper end of the right playback slider 260 in FIG.
, a stop portion 261 formed by a substantially concave notch is formed on the lower surface of the left and right playback sliders 25 and 26, and is rotatably supported by a shaft 1b protruding from the main chassis J. T-shaped reverse drive lever 27
is provided. A bent engagement piece 212 that engages with the locking portion 251 of the left playback slider 25 is formed on the left side of the reverse drive lever 270 base 21 in the figure. A bent engagement piece xyz that engages with the stop portion sir of the right reproduction slider 26 is formed on the right side of the base portion 27J in the figure.

Furthermore, the base 211 of the reverse drive/f-77
A substantially crank-shaped elongated hole 214 is formed on the left side in FIG.

Then, the above-mentioned reverse drive is performed and the elongated hole zv of tN-J7 is
Inside t is a protrusion 2 protruding from one surface of a gear ZS rotatably supported by a shaft 1 protruding from the main chassis IK.
81 is fitted.

Therefore, when the gear 28 rotates, the reverse drive lever 27 can swing around the shaft 1b in accordance with the rotation. Here, the protrusion 281 of the gear 28 is provided on the opposite side of the Confucian faith, and when the gear 2# rotates clockwise in the figure, it bites into the mouth and flavor 29, which will be described later. A pair of retaining portions zzx and xzs are formed. This stop part 2ax
, 2as are formed so as to appear at opposite positions with the axis IC as the center. Nine, the mouth above, Flepar 2g is,
Since the main chassis IK is rotatably supported by the protruding shaft 11, a retaining piece 291 is formed that can be selectively engaged with and detached from the stop portion 282°ZZS of the main chassis 28. This lock lever 2# is normally held by the gear 2 by the action of the strong spring shown in the figure.
Locking 1 of 8! l J I J 5283, f) It is biased counterclockwise in the figure. In addition, this opening and flavor 29 are used to detect the end of the tape during cutting and discharging in the reciprocating operation (same as the tape end detection in the A80 machine 111) and the operation lever 15 of the main reverse mechanism (see Fig. 1). ) is rotated clockwise in Fig. 4 against the biasing force of the spring.
The retaining part 29 is the stop part 2112.283 of the gear 28.
On the other hand, a first gear (not shown) is always meshed with the gear 28. The gear ratio between the first gear and the gear 28 is set to 1:2, and when the first gear rotates once, the gear z8 rotates half a rotation. A notch portion without a gear is formed at a predetermined position in the gears of the assembly I, and the rotational force from the motor 71 is transmitted to the position opposite to this notch portion. A second gear is provided which rotates in one direction independently of travel. When this second gear is meshed with the gear in the rear part 1, it is rotated so as to rotate the minus wheel 21 clockwise in the figure.

In the above configuration, when auto-reverse is selected, the PLAY(R) and PLAY(F) sweepers 2C22. Suppose that I made it. Then this PL
AY(R) and PLAY(F)! Both the left and right playback sliders 25 and 26 are slid in the direction of the arrow (0) in Fig. 4 through the operating lever and spring that are linked to the operation I+7e+2.Here, as shown in Fig. 4, mouth,
The retaining portion 2#1 of the frame t4-79 is the locking portion Z of the gear 28.
Assuming that it is engaged with SS, the reverse drive lever: IPy is regulated to the illustrated position depending on the position of the protrusion 28). During this rounding, the right playback slider 26 is sufficiently moved in the direction of the arrow, but the left playback slider 25 comes into contact with the bent engagement piece 212 of the locking portion 251 of the f-s drive lever z1. It is not moved sufficiently in the direction of the arrow.

Therefore, the pinch roller 6, idler, etc. controlled by the right playback slider 26 are pressed against the capstan 8 or moved to a predetermined position to rotate the right reel stand 1, thereby causing playback in the forward direction. It is the turtle that is held. At this time, as the right playback slider 26 moves in the direction of arrow C), its retaining piece 262 comes into contact with the protrusion 1b of the Herad slider 3, causing the head slider 3 to move in the direction of arrow (B). Therefore, the recording/reproducing head 4C (see figure 1) provided on the head slider 3 (details of which will be described later) comes into contact with the tape. Since the reverse drive lever 21 holds down the biased force, a rotation biasing force is applied to the reverse drive lever 27 in the clockwise direction in the figure. Therefore, the gear 28 having the protrusion taX that is fitted into the elongated hole 274 of the reverse drive lever 27 is also rotated clockwise in the figure, but the locking portion Since jSS is secured to the retaining portion 291 of the lock lever 29, the gear 28 does not rotate and the reverse drive lever 21 is stable at the position shown in FIG. 4. - In the forward regeneration state as described above. At 9, the tape reaches the end. Then, as shown in FIG.
is released from the locking portion taX of the gear 28. At this time,
As mentioned earlier, in the state shown in FIG. 4, the gear 28 is given a rotational biasing force in the clockwise direction in the figure, so that -wheel X
5 is slightly rotated clockwise in FIG. 5. Then, the gear 11 meshed with this gear 28 is slightly rotated in the opposite direction to the minus wheel 11.

Therefore, the first gear and the gear of the bait 2 are in a meshing state 111, and the rotational force of this second gear rotates the gear 21 clockwise in the figure.
When the gear 28 rotates and the notch 111 again faces the second gear, the gear 28 rotates exactly half a turn as shown in Figure 6, and the locking part 282 engages the mouth and the flavor 29. Part 2
91. At this time, the reverse drive lever 2 follows the protrusion 281 as the gear 28 rotates half a turn.
7 is rotated clockwise in FIG. Therefore, the bent engagement piece 213 of the reverse drive lever 21 comes into contact with the locking portion 261 of the right playback slider 26, and the right playback slider 26 is retracted in the direction of the arrow in the figure. On the other hand, since the bent engagement piece 212 of the reverse drive lever 21 is released from the stop portion 251 of the left reproducing slider 25, the left reproducing slider 25 is sufficiently moved in the direction of the arrow. The idler, etc. in the pinch row 25, which is controlled by the capstan IK, is moved to a predetermined position where the left reel stand 10 is rotated, and playback in the reverse direction is performed here. At this time,
As the left playback slider 25 moves in the arrow (0 direction), its retaining piece 252 comes into contact with the protrusion JaK!! of the toss slider 3, causing the head slider 3 to move in the arrow (0 direction).
For this reason, to the recording and playback that was made to slider 3, to slider 3,
The turtle is touching the tape.

ζHere, the above-mentioned slider S is once moved in the direction of the arrow during the transition S when the tape is switched from the forward playback state to the reverse playback state (the same is true for the reverse process) by a mechanism to be described later. After that, as the left or right reproduction slider 25t or 26 is moved in the direction of the arrow (O), it is moved in the same direction.

6, the reverse drive lever 21 presses the right playback slider 2C in the direction of the arrow (O), so that the reverse drive lever 21 moves in the opposite direction in the figure. This means that a clockwise rotational biasing force is applied.

This rounding shows that the gear 28 is given a rotation biasing force in the clockwise direction in the figure, but since its stop portion jag is engaged with the engaging portion 291FC of the flapper 2#, the gear 28 is rotated clockwise in the figure. The reverse drive lever does not rotate and remains stable at the position shown in Figure 6.

When the tape reaches the end in the reverse playback state as described above, the tape end detection mechanism rotates the mouth and flavor 29 clockwise in the figure as described above. In substantially the same manner as above, the gear 2g is rotated half a turn clockwise in the figure, and the tape is again played back in the forward direction as shown in FIG. In addition, the tape forward/reverse switching mechanism described above is not limited to operating only at the end of the tape.
It can be easily seen from the above description that the mechanism also operates when the operating lever 15 of the eyebrow 1 reverberation mechanism is operated, and the tape running direction can be switched between forward and reverse at any point in the tape running.・The forward/reverse switching mechanism for tape running has been explained above.
Next, the head moving mechanism # (number N4 in the first drawing) will be explained. That is, as shown in FIG. 4 again, a bent engagement piece 276 is formed at the tip of the extending portion 215 of the nine reverse drive lever 27, which is formed into a substantially T-shape. Also, the elongated hole 254# of the left and right playback sliders 25 and 26
A guide bin 256.266 inserted through the inside of the left and right playback sliders 25.26 and the main chassis J
The control slides 30 overlapping each other between
and long holes J formed at both ends of the drive slider 3J.
OJ, 302 and six, six are inserted respectively.

These control slider 30 and drive slider 31
are independently operated by the left and right playback sliders 25.
It is supported so as to be able to reciprocate in a direction substantially orthogonal to the sliding direction of 26, that is, in the arrow (G) and F] directions in the figure.

Here, a through hole 303 having the shape shown in the figure is formed approximately at the center of the control slider 30.

The lower trap in the figure of this through-hole SaS will be described later.

A substantially concave fitting portion 304 is formed on which a driven portion of a fan-shaped gear provided in the rotary mechanism is placed. (9) A pair of locking portions 305 and 306 are formed at the right side 111 of the connecting portion 3040 of the through-hole SOS at a predetermined distance in the longitudinal direction of the armpit control slide 30.

On the other hand, a through hole sis of the shape shown in the figure is formed approximately at the center of the drive slider 31. At the upper part of the through hole 313 in the figure, there is a substantially mountain-shaped protrusion 314 having a groove t4 on both sides.
is formed. This protrusion 314 is shaped so that a bottle 3c installed in the lower part of the Herad slider 30 in the figure can be engaged therewith. Furthermore, the above-mentioned through hole 313
Uchitsui! On the right side of t314 in the figure, a pair of locking portions 315 are provided at a predetermined interval in the longitudinal direction of the skeleton drive slider 31.
031g is formed, and a bent engagement piece 216 formed on the extension portion 275 of the reverse drive lever 21 is interposed between the pair of stop portions 315 and 31g.

Further, at the lower part of the through hole 311 in the drawing, a bent engagement piece 311 is formed to be interposed between the stop portions 3o, 8, and 30g of the control slider 30.

Assuming that the tape is currently playing in the forward direction,
The reverse drive lever 21 is in the position shown in FIG. 4, and at this time, its bent retaining piece 216 comes into contact with the locking part 316 of the drive slider 31, and the drive slider 31 is moved in the direction indicated by the arrow (
(g) direction. Further, the bent engagement piece 311 of the drive slider 31 contacts the stop portion sag of the control slider 30, and the control slider 30 is also moved in the direction of the arrow η in the figure.

When the regeneration state t in the forward direction is switched to the regeneration state in the reverse direction as described above, the reverse drive lever 27 is rotated clockwise in the figure as shown in FIG.
The bent retaining piece xrg is the stop part 31 of the drive slider 3.
5 and moves the drive slide end 3J in the direction of arrow (G).

At this time, the bent engagement piece 311 of the drive slider 31 is only moving between the stop portions 305°5ott of the control slider 30, and the control slide 3o does not move.
In addition, as the drive slider 3 is moved in the direction of the arrow Kjll in the figure, the pin 3 of the head slider moves into the protrusion 3 and 4.
It is moved downward in the figure along the taper of , and is eventually retreated in the direction of the arrow as described above.

When the reproducing state is switched to the reverse direction, the drive slider 31 is sufficiently moved in the direction of arrow v)7i in the figure, as shown in Figure 6. At this time, toslider 3
The pin 3@ of is located on the opposite side of FIG. 1IE4 beyond the top of the protrusion 314 of the drive slider 3. At the same time, since the left reproduction slider 25 is sufficiently moved in the direction of arrow C in the figure, the toss slider 3 is also moved in the same direction so that it has the protrusion 3a that engages with the dominant piece 252 thereof. Therefore, the bottle 3c of the head slider 3 presses the protrusion 314 of the drive slider 3J in the opposite direction, and thereby the drive slider 3
The locking portion 315 is sufficiently moved in the direction of arrow (6) in the figure more than the bending engagement piece 276 of the reverse drive lever 2r presses. In addition, the control slider 30
The drive slider 31 is also moved in the direction of the arrow (■) following the movement of the drive slider 31.

On the other hand, when switching from the reverse playback state to the forward playback state, the reverse drive lever 21 is rotated counterclockwise in FIG.
6 presses the drive slider ZIO retaining portion 316, and the drive slider 31 and control slider SO are moved in the direction of the arrow (G) by an operation substantially reverse to that described above, and the state shown in FIG. 4 is again achieved. It is. It goes without saying that during this switching, the head slider 3 of the head slider 3 once retreats in the direction of arrow (2) and then moves forward again.

Here, during switching from the forward direction to the reverse direction and from the reverse direction to the forward direction, the driving slider 31 and the control slider 30 are moved in the directions of arrows (6) and (c) in the figure, respectively. This is necessary for driving the Hellard rotation mechanism, and the Hellard rotation mechanism will be described below.

Figure 7 (a) is from a book showing the appearance of the head rotating machine described here. To briefly explain the general structure and operation, the recording/reproducing head 4 is for a micro cassette tape recorder, and its signal recording/reproducing head s41 is offset to one side of the tape contact surface 4b. It is provided. For recording/reproducing, the card 4 is also arranged in parallel with an erasing head 32 for a micro cassette tape recorder, and is fixed in a substantially cylindrical head support 33.

19. 34 in the figure is a head mounting structure, as shown in the figure,
The base plate 35 and the gear 36 are integrally and rotatably supported. Furthermore, this head mounting structure 34 includes a gear 36.
A substantially fan-shaped fan gear 37 that meshes with the head mounting structure is rotatably supported at its base, and a head support body 33 is attached to the head base plate 35. 34 is its mounting portion 341
The tape contacting surface 4b of the recording/reproducing head 4 is connected to the head slider 3 and is screwed onto the slider 3 by, for example, a screw (not shown). It faces upward in Figure 4. Further, a driven portion 37/1 extends from the base of the fan-shaped wheel 37, and connects the cannon-equipped structure 34 to
When attached to the toss slider 3, the driven part 31 is interposed within the t-joint part 304 of the control slider 30. Note that the head slider 3 and 4 are indicated by arrows (0, 4) in the figure.
Even if the driven portion 371 is moved in the direction ( ), the driven portion 371 does not come off from the fitting portion 304 and is always interposed within the fitting portion 304 . Therefore, as described above, when switching the tape from the forward direction to the reverse direction and from the reverse direction to the forward direction, the fan-shaped gear 31 is also rotated around the base.

For example, if the fan-shaped gear 37 is rotated in the direction of arrow C) in FIG. The base plate 35 and the head support 33 are rotated in the same direction, so that the recording/reproducing head 4 and the erasing head 32 are rotated exactly 180' as shown in FIG. 7(b). Then, in Fig. 7 (a), the head section 4m was facing the lower track in the figure with respect to the tape 38 indicated by the two-dot chain line in the figure, whereas the rotation edge is opposite to the track shown in Fig. 7 (b). ), the head portion 4m comes to face the upper track of the tape 3B in the figure, and the track change (head movement) of the tape 38 is performed here during forward and reverse cutting and ejection. I17
When the fan-shaped ramp wheel 37 is rotated in the direction of the arrow (1) in the figure (b), the gear 36. Of course, the head base plate 35 and the head support 3J are rotated in the direction of arrow (J) in the figure, and the recording/reproducing head 4 and the erasing head 32 are returned to their original positions.

Here, the upper recording head 4E! , to erase, C 32 is,
Tape 38 (conno 9 kute de cassette).

When coming into contact with the tape, the tape is inserted into a normal card insertion hole formed in the cassette half and brought into contact with the tape.

Here, as described above, locking portions 351 and 352 are provided protruding from a portion of the base plate S5. In addition, a pair of screws 342.3 are provided at the −@ portion of the head mounting structure 34.
43 is screwed on. As is clear from FIGS. 7(a) and 7(b), the head base plate 350 is rotated until its stop portions 351 and 352 come into contact with the screws 342 and 343, respectively. Therefore, by adjusting the threading depth of the screws 342 and 343,
The azimuth adjustment of the recording/reproducing head 4 and the head 32 for erasing can be performed in the state shown in (b). In addition, the upper recording/reproducing head 4 and the erasing head 32 are mounted on the head support 3.
3. The mounting structure 34 is inserted into the head base plate 35° as described later, and the center of rotation of the car 360 is inserted through the vvr.
A three-wire tube 9 is connected to a one-air circuit section of a recording/playback system (not shown).

Further, on the circumference gIA of the head support 33, an arrow 40 is provided to indicate the tape traveling direction when the head support 33 is in the position shown in FIGS. 7(a) and 7(b).
．． '40 is provided.

In addition, a tape 38 is attached to a part of the support body 33 as described above.
Tape guide portions 331 are formed to support both ends in the width direction. In addition, the torsion ring 41 visible in Fig. 7(b) has two stabilizing effects to stably hold the supporting body 33 in the two positions shown in Fig. 7(a) and Fig. 7(a). It is something to do.

In a tape recorder having an auto-reverse device having the basic configuration as described above, the detailed configuration of each part thereof will be explained below. First, the v8 diagram is the PLAY (
R) and PLAY (F) This is a book showing the liquid operation levers 42 and 43 of the sweepers 2c and 2. That is, this PLA
The Y (R) and PLAY (F) operating levers 42 and 43 are
PLAY(R) and PLAYCF) are supported by the straight plane part 1a of the main chassis 1 so as to be able to slide vertically in the figure in conjunction with the operation of the operators 2c and 2m, and each is supported by a spring (not shown). Said left and right playback sligs via j 5 , 26. It has been made into a movement. And these PLAY(R) and PLAY
(F)! ! First and second lock plates 44m45 are arranged in parallel so as to be substantially perpendicular to the operating lever 42643. The wl, 1 and the second opening 44, 45 are attached to the main chassis 1 so that they are both independently slidable in the longitudinal direction.
It is supported by the straight plane part Jm. In FIG. 8, the front @ in the figure is the first lock plate 44, and the back in the figure is the lock plate 45 of the building 2.

The first opening (a4) is always urged rightward in the figure by a spring (not shown). Further, the lock plate 45 of W2 is biased toward the right in the figure by another spring (not shown). When the lock plate 45 of the IE 2 is moved to the left in the figure, the first lock @44 moves in the same direction.

Here, a bent engagement piece 44 is formed at a predetermined position on the upper portion of the first mouth plate 44 in the drawing. This bent engagement piece 4'41 is connected to the above-mentioned PLAY (F)! I lever 4
A through hole 431 formed slightly below the center part of 3 in the figure.
This is a book that is engaged with a lock portion 43z formed at one end of the book. In other words, this lock portion 432 locks the PLAY(
F) A chi/1 portion 433 that escapes from the bent engagement piece 441 when the sweeping lever 43 is moved upward in the figure;
and a locking portion 434 that bites in when the PLAY (F) operating lever 430 is moved downward in the figure. Therefore, when the PLAY (F) operator 2 is pressed, the PLAY (F) sweeping lever 43 slides upward in the figure, and the Q/4 portion 433 of the opening 432 engages with the first locking plate. 44, the lock #144 of the lock is slid to the left in the figure. When the locking portion 434 of the locking portion 432 of the PLAY (F') operating lever 43 reaches the position facing the bent engagement piece 441 of the lock plate 43 of ``l'', as shown in FIG. The locking plate 44 is returned to the right in the figure by the biasing force of the spring, and the locking portion 434 of the lip portion 432 is locked to the bent engagement piece 441, and the PLAY (F) 4 is held here.
This is the book in which the operating lever 43 is locked in the sweeping position.Here, the first locking plate 4J is
) This is the opening of the operating lever 4S.
Each operating lever of the FF operator 2b and the FF operator 2f is
In each case, the book 1 is locked in the sweeping position by the same means as above using the lock 1!45 of calculation 2.
It is.

9. In the state where the 5TOP operator 2a is swept, the mouth of the menu 2, ri@i45, is slid to the left in the figure, and based on this, the PLAY (F) operation lever 4J,
R) Each operating lever of the EW operator 2b and FF operator 2f is released from the lock position.

Further, when the Ag34!1 mechanism 24 is operated, which will be described later, the lock plate 44 of the book library 2 is slid to the left in the figure to release the lock.

Here, the PLAY(R) operating lever 42 is opened by means of a rear end and a second opening, and sliding plates 44 and 45.

As shown in FIG. 9, the locking member 46 allows the locking member 46 to be opened at the operating position. The reason for this is that in the auto-reverse state in which the PLAY (R) and PLAY (F) operators 2e e2@ are operated together, the operation lever 1 of the auto-reverse number limiting mechanism
When the tape is played back in the forward direction by operating 4, when the tape reaches the end, the ASO $Z
The second lock plate 45 is slid by the action of a and PL
AY(F) The operating lever 43 is unlocked.

At this time, as the lock plate 45 of the building 2 slides, the lock plate 44 of the body 1 also slides in the same direction. If it is locked to PLAY
(F) This is because the sweeping lever 43 and the PI, AY(R) operating lever 42 are also released, making it impossible to perform reproduction in the reverse direction.

The locking member 46 is formed by molding a synthetic resin material, and as shown in FIG.
61 and a base 462 rotatably supported by the base 461.
62 in an abbreviated shape, and an elastic portion 464 extending from the base portion 462 so as to form a substantially varnished shape with the mouth and rib portion 4gB. A branching portion 465 between the lock portion 4f3 and the elastic portion 464 is formed into a substantially curved shape as shown in FIG. 11. Also,
The distal end of the locking portion 463 in the extending direction is connected to the elastic portion 4g.
4111, and the tip has a protrusion 4.
66 is formed. Furthermore, a curved portion 461 that bulges outward is formed at the forward end m of the elastic portion 464 in the extending direction. A protrusion 468 formed on the straight plane sJa of the main chassis 1 is in contact with the outside of the curved portion 467 of the elastic portion 464. A through hole 4 is located at a position corresponding to the protrusion 466 of the opening 463. A hole is formed at one end of this through hole 421.
When the AY (R) operating lever 42 is moved upward in the figure, the opening, the cheating part 422 that runs away from the protrusion 466 of the rib part 463, and the PLAY (R) 4 operating lever 42
The retaining portion 42 bites when moving downward in the figure.
3 is formed. Furthermore, the opening of #2, the plate 46
A protrusion 451 is formed in a portion of the locking member 46 facing the outside 911 of the locking portion 463 at the upper side in the figure.

Here, when the PI, AY(R) operator 2c is depressed, the PLAY(R)% operating bar 42 slides upward in the figure, and the tenor 4 section 422 presses the protrusion 466 of the locking member 46. Therefore, the lock portion 46 of the lock member 46
3 is rotated clockwise in the drawing M10 around the shaft 461. At this time, the curved portion 467 of the elastic portion 464
Hit 68. Then, when the locking portion 423 of the PLAY (R) operating lever 42 reaches a position 114 opposite to the protrusion 418g of the locking member 46, the opening of the locking member 46 closes.

The resilient portion 463 is rotated counterclockwise in the figure by the action of the elastic portion 4640, and the locking portion 423 of the PLAY(R) operating lever 42 is rotated.
is locked to the protrusion 466 of the locking member 46, and the PL
AY(R) The rotation is performed at the operation position of the rotation lever 42.

When the second lock plate 45 is slid to the left in the figure in such an operating state of the PLAY(R) I) operating lever 42, the protrusion 451 is caused to slide into the opening V-shaped portion 46 of the lock member 4#.
3 and rotate the locking portion 463 clockwise in the figure against the biasing force of the elastic portion 464. Therefore, the protrusion 466 of the locking member 46 is released from the locking portion 423, and the locking portion 463 is rotated clockwise in the figure against the biasing force of the elastic portion 464. The PLAY(R) operating lever 42 is unlocked at the operating position.

Here, the detailed operation of the locking member 46 will be explained. First, from the state in which the aying member 46 is shown in FIG.
In the state shown in FIG. 1(b), while the locking portion 4630 is rotating, the elastic portion 464 and its curved portion 461 slide on the protrusion 54611 of the main chassis J. Therefore, as the opening 463 rotates clockwise in the figure, the connection between the curved part elastic part 464 and the base part 462 starts from the root part, and the elastic part 4θ4 and the protrusion 4
If the distance to the contact point with 1711 is long, the elastic part 4
64 can be absorbed by the curved portion 467.

Regarding this point, if the locking member 460 elastic portion 46# is substantially linear as shown in FIG. 12(a), for example, 9
As shown in FIG. 12(b), when the lock portion 463 rotates clockwise in the figure, the stress applied to the elastic portion 469 concentrates on the root portion, causing the elastic force of the broken portion to decrease, etc. ,
There are various problems.

Therefore, as described above, the elastic portion 46 of the opening member 46
By forming a curve 1lB467 in the elastic part 4
The stress applied to the locking member 464 can be uniformly dispersed, and the elastic portion 464 can be prevented from bending or decreasing its elastic force, making it extremely effective.
6 is formed by molding a synthetic resin material,
& It is easy to make and economically advantageous.

Next, as shown in FIG. 8 again, a first gear 41, which was not shown in the previous explanation of the basic configuration, is meshed with the minus wheel 28. A second gear 48 coaxial with the flywheel 19 is meshed with the gear 47 of IJg1.Here, the gear 41 of IJg1 has a small diameter as shown in FIG. 1 freight car part 471 and a large diameter 2nd freight car part 471
The first gear part 421 meshes with the gear 28, and the second gear part 47
2 meshes with a gear 48 of WJ2, which is not shown in FIG.

And the first gear 41 is $2c) @military4rzt
A notch 473 is formed as shown in Figure 8 of the lc sheet.Here, the gear j8 and the gear 41 fl are the 13th
As shown, pin 284 and pin 474 allow
They are each rotatably attached to the straight plane portion 1a of the main chassis 1.

Here, when the freight car 28 and the first gear portion 47 of the first gear 47 are to be meshed, it is necessary to determine the meshing position as follows. The protrusion 28 changes the position of the reverse drive lever 270, thereby controlling the left and right playback sliders 25 and 26 to perform playback in the forward and reverse directions. Therefore, the protrusion 281 of the gear 28
When in the position shown in FIG. 6 and FIG. 6, the notch 413 of the first gear 47 is positioned opposite to the second gear 48
It is necessary to apply pressure so that the first gear 41 does not rotate.
Therefore, as shown in Fig. 14, the gear 28 has an eagle tooth 2.
A positioning protrusion 2116 is formed at 85, and
Two predetermined adjacent teeth 4' of the first gear portion 471! 5
．． Positioning protrusions 417 and 411 at 4'16 respectively
form. Then, the protrusion 4r of the first gear portion 47
Between the teeth 475 and 416 where 1.47B is formed,
The gear 28 is assembled so that the protrusions 286 formed therein are meshed with each other.

Therefore, as mentioned above, the teeth 285 of the gear 28 and the first
By forming the positioning protrusions 285 and 477.478 on @475.476 of the gear portion 411, respectively, it is possible to easily align and mesh the gear z8 and the first gear portion 471. This makes the introduction work easier. In addition, as a positioning display provided on the gear 28 and the gear portion 47 of the building 1, the eastern part 2
Not limited to 115m4r7.47/B, for example, Fig. 15 (
&) to (e), the concave portion 49J2 step portion 492
Of course, various types of grooves 493 can be applied.

Here, in the figure % @l', the central part 286 is formed in one gear 285 of the gear 280, and the two teeth 4 of the gear part 411 on the side l are formed.
76.4' 16 was formed with a protrusion 411° 411, but this is reversed and a protrusion is formed on two teeth of gear 210, and a protrusion is formed on one tooth of gear 411 of 181. It may be done as follows.

Furthermore, the positioning of the gear 28 and the first gear part 471 can be performed as shown in FIG. 4316. In other words, the means shown in FIG. This utilizes the fact that the plane parts of the gear 28 and the gear part 472 overlap each other, and a through hole 2117.
1111, and a through hole 479 is formed in the plane part of the second gear part 472, so that the through hole 287t or 288 of the gear 28 and the through hole 479 of the second freight car part 412 match.
The gear 28 and the first gear part 471 are made to mesh with each other. In this case, a through hole 1e is also formed in the eave-like flat surface portion 1a of the main chassis 1, and first, the through hole 479 of the second gear portion 472 and the through hole 1 of the eave-like flat surface portion Ja are aligned, If you hold the first gear 41 firmly in this state and mesh it so that the through hole 287 or 288 of the gear 28 and the clearance hole 479 of the #2 gear part 472 match, it will be better. Positioning can be performed more easily.Next, the constant speed tape running drive mechanism of the tape running drive unit @22 will be explained. In FIG. 117, the flywheel 19ezo includes a pulley 131 directly connected to the rotating shaft of the motor J3 and a belt J32 as shown.
are connected so that rotational force can be transmitted. And the flywheel 79 e J O is the above-mentioned day IJ J 3
When J is rotated clockwise in the figure, it is rotated clockwise and counterclockwise in the figure, respectively.

Here, the flywheel x9e2° has a small diameter gear 19 coaxially with the capstan 7.8 which is its rotating shaft.
1. :j! ox and large-diameter gears 192 and 202 are provided to rotate integrally with the flyhole xlte 20. Among these, gears with small diameter 191.201
Left and right take-up gears 501 and 502 with large diameters are always meshed with each other. The left and right take-up gears 501 and 502 each rotate around the capstan 7.8 on the straight plane portion JaKf of the main chassis 1.
f The left and right winding registers 51 and 52 are rotatably supported along the bottom-like plane part 11, and a shaft 511 is provided. 521, each is rotatably supported.

Here, the left and right take-up levers 5i and sx have nine locking portions 512 and 522 formed at each end thereof and a locking portion 5 formed at a predetermined position on the eave-like flat surface portion 1m of the main chassis 1.
13.523, a coiled spring 514.
524 are respectively engaged, so that they are biased clockwise and counterclockwise in the figure. The left and right reel stands 10.11 are provided with gears J (7J, JJJ, respectively) coaxially through a friction mechanism, and the left and right take-up levers 51. spring 5
When the left and right take-up gears 50 are rotated clockwise and counterclockwise in the figure by biasing forces of 14 and 524, respectively,
1°502 are meshed with the gears JO1 and 111, respectively.

The left and right winding sliders 15-51a52 have upper ends of the protrusions 515, 525 formed at predetermined positions in the left and right reproducing sliders 15.26. They are respectively engaged with the joint pieces. Therefore, in the stopped state, the left and right playback sliders 25 and 26 are sufficiently lowered in the direction of the arrow in the w Press down in the figure to remove the left and right winding levers 51.
52 are rotated counterclockwise and clockwise in the figure against the urging force of springs 514 and 525, respectively, so that the left and right take-up gears 5o1.5oxli, the left and right reel stands 10, and the IJ gear 101. , has left 111.

In this stopped state, the PLAY(R) operator J
It is assumed that the user operates @t- and moves the PLAY (R) operating lever 4z to the upper blade in the figure as shown in Figure 917.

Then, since the left playback slider 25 is also moved in the same direction, its locking piece engages the protrusion 515 of the left take-up Reno Z-57.
will no longer be pressed. Therefore, the left take-up lever 5 is rotated clockwise in the figure by the biasing force of the spring 514, and the left take-up lever 50 is engaged with the gear 101 of the left reel stand 10. Flywheel J9 is rotated clockwise in the figure by the rotational force being transmitted.
The rotational force of gear 191. Left winding gear soi and gear 1
01 to the left reel stand 10, the left reel stand 10 is rotated clockwise in the figure, and constant speed constant running of the tape in the reverse direction is performed.

In addition, the above PLAY (PLAYC instead of the phantom operator 2c)
F) The case where the operator 2 is operated can be explained in substantially the same manner as above. That is, at this time, PLA
The Y(F) operating lever 43 is moved upward in the figure, and the right playback slider 26 is also moved in the same direction. Then, the right take-up lever 52 is rotated counterclockwise in the figure by the biasing force of the spring 524, and the right take-up gear 502 and the right reel stand J1 are rotated.
The gears 111 are meshed with each other. For this reason, right reel stand 1
1 is rotated counterclockwise in the figure, and the tape runs at a constant speed in the forward direction.

Here, the pinch rollers 5 and 6 are rotatably supported at one end of the pinch levers tisi and ssx, respectively. This pinch lever-131, 1i31 is
At the other end, the eave-like flat part 1 of the main chassis 1
A is protruded from a predetermined position and rotatably supported by a round shaft gB1.134. In addition, the above pinch Leno (
-1ill, 511 is torsion spring 531
(The torsion and pinch lever of the pinch lever 532 are not shown), and are biased counterclockwise and clockwise in the figure, respectively. And the pinch lever isi,
When ssx is rotated counterclockwise and clockwise in the figure, respectively, the pinch rollers 5. d is pressed against the cab stans 1, 1.

Here, a protrusion 531°JJJI that protrudes upward in the figure is formed approximately at the center of the pinch leno 4-531, 531. In addition, the above left and right winding levers i1.51
Among them, the pinch lever la1. i31 protrusion ssy
, in the part facing isa, there are shell protrusions 1137, 138.
Engagement portions 516 and 521s that can come into contact with are respectively formed. When playing fast forward (key, -) and rewinding (review), which will be described later, the left and right winding levers
i and sz are rotated counterclockwise and clockwise in the figure, respectively, against the biasing forces of springs 514 and 524, and the retaining portion 51#.

526 is the pinch lever ssi, the protrusion ssv of ttsx,
r; Press ss. For this reason, the pinch lever ssi
, six are rotated in the direction of the hour hand and counterclockwise in the figure, respectively, and the pinch point 6 is rotated by 25 degrees to the capstan 7, 1 or G;
They become separated from each other.

Next, the Chive high-speed traveling drive mechanism among the tape traveling drive mechanisms will be explained. In FIG. 17, a high-speed drive lever 54 is provided between the left and right take-up levers 11°52. This high-speed drive lever 54
In Figure 7, it is a substantially elliptical plate body that is long in the vertical direction, and the lower part in the figure projects from the eave-like flat part 78 of the main chassis l, and is rotatably supported by a round shaft 541. A high-speed gear 542 is rotatably supported at the upper part of the high-speed drive lever 54 in the figure.

A protrusion 541 is formed at the lower end of the high-speed drive lever 54 in the figure.

Here, below the high-speed drive lever 54 in the figure, there is a high-speed operation lever 5J that is substantially orthogonal to the high-speed drive lever 54.
It is supported so as to be slidable in the longitudinal direction. A bent locking piece 551 is formed at the center of the upper side of the high-speed operation lever 55 in the figure, and an annular portion of torsion spring six is fitted into this bent locking piece 1151. Both ends of the torsion and ring 552 are extended upward in the figure, and after sandwiching a bent engagement piece 553 formed at the center of the upper side of the high-speed operation lever 55 in the figure, the high-speed drive lever In addition, at both ends of the high-speed operation lever 65, cheek/arm parts 514 and 5111 are formed, respectively. This Ochi/Obi part 1i14.5s5 is the Rr, W operator 21
Rff operation lever 56 and FF operation lever 5 which are slid upward in the figure in conjunction with the operation of 1 and FF operation element 2f.
A bent engagement piece 561 formed on each side of 1. l'll
It is adapted to be engaged with.

For example, when the RIiW operator 2k is operated,
The R11W operating lever 5- is slid upward in the figure. Therefore, the bent engagement piece 5 of the RIiW operating lever d
61 presses the tapered portion 554 of the high-speed operation lever j5,
Slide the nuclear high-speed operation lever 55 to the right in the figure.

Then, as shown in FIG. 18, one end of the torsion spring 552 engages the bent engagement piece 55 of the high-speed operation lever 5J.
1 to the right in the figure, the other end presses the protrusion 541 of the high-speed drive lever 64 to the right in the figure.

This L-high speed drive lever 54 is rotated counterclockwise in the figure, and at this time, the high speed gear 542 meshes with the gear 192 of the flywheel 19 and the tooth rest 101 of the left reel stand 10. Therefore, the force transmitted 190 times to the flywheel is
2. The signal is transmitted to the left reel stand 10 via the high speed gear 542 and the gear 101, and the left reel stand 10 is rotated clockwise in the figure, causing the tape to run at high speed in the opposite direction.

Also, instead of the RIiW operator 2b, the FF operator 2f
Almost the same explanation can be given when operating . That is, at this time, the FF operation lever 5f is moved upward in the 17th position, and accordingly, the high-speed operation lever 55 is moved upward.
is moved to the left in the figure. Therefore, the high-speed drive lever 54 is rotated clockwise in the figure, and the high-speed gear 542 is meshed with the 7 live wheels 200 @ wheels 2, 02 and the gear 111 of the right reel stand 11, and the right reel stand 11 is rotated clockwise in the figure. Rotated counterclockwise, here it is! 1), in which high-speed running in the forward direction is performed.

Next, as mentioned above, play fast-forward (key, -) and rewind (
Repi, -) state will be explained.

That is, as shown in FIG. 17, a high-speed slider 58 (indicated by a dotted line in the figure) is provided between the left and cloth take-up levers ttx and isO so as to be slidable in the vertical direction in the figure. At the bottom of the diagram of this high-speed slide finisher 5J, the above RIW and F
F operation lever 5f;, 51 bent engagement piece 6f11.5r
The extensions sa1. ssx is formed.◇Furthermore, tapered portions 1i83.1II4 of the shape shown in the figure are formed on both sides of the high-speed slider JJI, respectively. Here, the left and right winding levers 51.
j2 includes tape sections 183.j2 of the high-speed slider 5a.
Engagement protrusions siv and sxv that can be engaged with 5114 are formed, respectively.

Then, in the reverse playback state as shown in Figure 17,
In order to perform a cue operation, the RLW operator 2b is operated to reach 9. Then, as shown in FIG. 18, the R) iW operating lever 56 is moved upward in the figure, and in conjunction with this, the spatula slider 3 is lowered slightly downward in the figure, and the recording/playback spatula W4 is moved in the opposite direction of the tape. It comes into light contact with the tape while it is on the track corresponding to the run.

At this time, the bent engagement piece 5d1 of the R11W operating lever 56
pushes up the extension part 581 of high-speed slider 5#, so
When the high-speed slider 51 is moved upward in the figure, the contact portion III of the high-speed slider II presses the engagement protrusion 1iJf of the left take-up lever 5, and the left take-up lever 51 is moved by the biasing force of the strip cylinder 114. Rotate counterclockwise in the figure against the This rounding, the left take-up gear 501 is the left IJ-ru base 1
0, the high speed gear 542 meshes with the gear 101 instead, and the left reel stand 10 is rotated at high speed clockwise in the figure. At this time, with the left take-up lever 5 pressed by the tapered part tittx of the high-speed slider 58 and rotated counterclockwise in the figure, the retaining part 51g of the left take-up lever 51 Press the protrusion j37,
Since the cough pinch lever till is rotated clockwise in the figure, the pincher 25 is separated from the capster/1.

For this reason, the recording/reproducing head 4 corresponds to the tape running in the reverse direction, and the tape is running at high speed in the reverse direction with the tape being in light contact with the tape at nine points, and the cueing operation is performed at this point. .

Furthermore, if a review operation is to be performed in the reverse playback state shown in FIG. 17, the FF operator 21 may be operated. Then, in Fig. 18, the FF operating lever j1 is moved upward in the figure in place of the RIiW operating lever C, and in conjunction with this, the head slider S is slightly lowered downward in the figure. Then, the recording/reproducing head 4 comes into light contact with the tape while being on the track corresponding to the tape running in the reverse direction. At this time, the FF operation lever 1yy
c Interlockingly, the high-speed slide/58 is moved upward in the figure,
The tee/resting portion 681 is the engagement protrusion 1 of the left take-up lever 51.
Press 1ζ.

Therefore, the left take-up lever 51 is rotated counterclockwise in the figure, the left take-up gear 501 is separated from the gear 101 of the left reel stand 10, and the pinch lever 531 is rotated clockwise in the figure. , the pinch row 25 is separated from the canostan 1. In this state, the high-speed gear 143 meshes with the gear 111 of the right reel stand 11, and the right reel stand 11 is rotated at high speed counterclockwise in the figure. Therefore, the reel head 4 is adapted to run the tape in the reverse direction. The tape is running at high speed in the forward direction when it is lightly touching the tape on the 9th floor rack, and the review operation is performed at this point. On the other hand, when the tape is playing in the forward direction, the key, - and when performing a review operation, the Fr and R11W controls 1f, I
By operating b, the right take-up lever 52 is controlled by the tip/arm part 684 of the high-speed switch 158, and the following description can be made in substantially the same manner as above. During the key, - and review operations, the left and right take-up levers 61. il to rotate the pinch levers 531.53.2 and move the pinch levers I and C to the cab stan 1. By moving the pins 25 and σ away from the capstans 1 and 8, the stroke for separating them from the capstans 1 and 8 can be made longer.

In other words, the conventional mechanism for performing the cue and repeat operations moves the pinch roller away from the capstan in conjunction with the tosry finish. It only needs to be moved to a position where it makes light contact with the tape, and the movement stroke is extremely short. For this reason, Tosrai I
When the pinch roller is interlocked with the pinch roller, there is a problem in that it is difficult to separate the pinch roller sufficiently from the capstan.

However, as mentioned above, high-speed slide 〆5 JIno? -74 Part I II J, J a Left and right winding levers 61. rotate the pinch roller 5. By separating # from the capstan F, 1, the pinch rollers 5, 6 will not be moved regardless of the operation of the head slime 3, and the pinch low 25°6 will be moved away from the capstan 7. II. In addition, the left and right take-up levers 51.5:l are the left and right take-up gears J01°602
Since it supports the left and right take-up gears iax, iax
Left and right reel stand 10, 110m Car 1 # 1. When to separate from 111, pinch fight - woj, # to cab stun 1.
It is possible to easily set a tie with the timing of separation from #.

Next, the mechanism 80 will be explained.

That is, as shown in FIG. 19, the left reel stand 1-vc
F1. The friction member 1 is coaxially connected via a friction mechanism (not shown).
02 is attached. This friction member 1#2 is attached to the left reel stand 10 via the friction mechanism described above so that it rotates together with the left reel stand 10 in a no-load state. The m-side portion of the friction member 102 is brought into contact with the pin 1#1 protruding from one end of the Om 80 lever 1112) having the illustrated shape. A long hole iyz is formed at one end of the A80 lever II#, and a pin d#1 protruding from one end of the detection lever C0 is fixed into the long hole 5#2. Also, a pin-0 is attached to one end of the detection lever #0.
2 is provided 9, and the pin gas is connected to the friction member lO.
2 and the other end side portion of the second end. Then, the detection lever 6
0 has the other end protruding from the eave-like flat surface portion 1a of the mage chassis 1, is fitted onto a round shaft gos, and is rotatably supported. is rotatably supported by being fitted onto a shaft trys protruding from the eave-like plane portion 11. A pin 194 is provided protruding from approximately the center of the shaft 593 and the other end of the lever 5# of the lever 80. This pin 114 is formed on the left take-up gear 601 so as to be slightly eccentric about its shaft 511, and is adapted to be engaged with the nine cam portion gos. In addition, a protrusion 504 is formed on the flat surface of the left take-up gear 501 on the outer peripheral side of the force section 5#3. This protrusion 504 is located on the tip side in the rotational direction of the left take-up gear 50, which is rotated counterclockwise in the figure.
As shown in the figure, two ties are formed.

Here, at the other end of the above-mentioned SO lever 5t, there is provided a release lever which has an abbreviated side profile and whose corner part is rotatably supported by a shaft 611 formed on the eave-like flat surface part 1a of the main chassis 1. A retaining portion 596 that engages with one end portion of 61 is formed. The other end of this release lever 61 is connected to the operating lever 14.
・It is linked to 11. Further, a shaft 612 is formed at one end of the release lever 1i1C), and a shaft 612 is formed at one end of the release lever 1i1C.
One end of a dAgo select lever 62 is rotatably supported at 2. This person's sO select lever #2 is
A coiled spring 621 is engaged between one end of the release lever 61 and the other end of the release lever 61, so that it is biased clockwise in the figure. One end of the ham 80 select lever 62 is connected to the release lever #
1 until it comes into contact with a bottle 613 protruding from one end of the holder. At this position of the ASO select lever 12, the locking piece 622 formed at the other end of the ASO select lever gxo is connected to the second opening, which is connected to the bent locking piece 622 formed at the upper side of the sliding plate 45 in the figure. It is located at a position opposite to the stopper piece 482.

Further, a protrusion 193 is formed on the flywheel 111 integrally with the gear 192 thereof and at a position facing the protrusion 504 of the left winding gear 501.

In the configuration shown in FIG. 19, if the tape is now running in the opposite direction, both the left and right reel stands xO, 11 are rotated clockwise in the figure, as shown in FIG. 21. For this reason, the friction member 102 has one end side made of Ag3/? - Pressed by pin 591 of 59, carpet SO
The lever 59 is biased counterclockwise in the figure. In this case @, pin 5 #4 of ASO lever 5g is the left winding gear 501
The left take-up gear 15 is brought into contact with the outer peripheral surface of the cam portion 503 of
01 is rotated counterclockwise in the figure by the rotational force of flywheel 1#, the above ASO is Δ-5.
9 is performing a rocking motion along the cam portion 503. Further, the right winding gear 502 is idled by the rotating force of the flywheel 200.

On the other hand, if the tape is running in the forward direction, the 22nd
As shown in the figure, both the left and right reel stands 10.11 are rotated counterclockwise in the figure. Therefore, the other end side of the friction member 102F1 is at the pin/60 position of the detection lever 60.
2 and the nuclear detection lever 60 is rotated clockwise in the figure. Then, the A80 lever d9, which is connected to the detection lever 60 via the bottle 601, is urged in the counterclockwise direction in the figure. Therefore, the pin 694 of the A80 lever 5# comes into contact with the outer peripheral surface of the cam portion ttos of the left take-up gear 501, and the SO lever 5t performs a swinging motion along the cam portion 103 as described above. It is.

That is, the A80 lever 5g performs a swinging motion along the cam portion ses when the tape is running in either the forward or reverse direction.

Assume that the tape reaches the end while the tape is running in the forward and reverse directions as described above, and the rotation of the left and right reel stands 10 and 11 is stopped. Then, the biasing force applied to the ASO lever 59 to bring the bin 5 #4 into contact with the cam portion tins of the left take-up gear 501 is lost, so the 23rd
As shown in the figure, the swinging motion of the ASO lever J# is stopped at a position where its pin 594 corresponds to the outermost circumference of the cam portion SOS. For this reason, when the left take-up gear 501 is further rotated 1 in the clockwise direction in the figure, the bin 1ifi4 of the ASO lever 5I is rotated by the left take-up gear 10, as shown in FIG.
It rides on the protrusion 504 via No. 1 Chi/1 Part 5ott. Then, the other end of Ag3)i-59 is formed into a gear 192 of 7-fiber wheel 1g and is struck by a protrusion 193, causing it to rotate clockwise in the figure. Therefore, the engaging portion 195 of the ASO lever 59 presses one end of the release lever 11, and the release lever 11 is rotated clockwise in the figure.

As a result, the locking piece 621 of the ASO select lever σ2 engages with the bent locking piece 481 of the second opening plate 45, and the second locking plate 41 moves to the left in the figure. It is moved (the first lock plate 44 is also interlocked) and the first and second lock plates 44, 45 and the openings are attached to the rim portion i4-.

Operate FF and PLAY (R) p4-4 J e l
6 eir, 4x, etc. are unlocked from the operating position, and the A80 function is performed here.

Therefore, as above, left and right winding ij −J
1, J 10 rotation center is coaxial with Capstar/7°I, left and right take-up gears 501°ion are flywheel lfl, and gear 20 is 1#z.

201, and one left and right take-up gear go1
．． By using the gos (left take-up gear 501 in the above explanation) for the mu 80 mechanism 24, the configuration is simple and reliable operation can be performed, and
The left take-up gear 101 is always rotated in the same direction regardless of whether it is engaged with the left reel stand 100 gear 101 or not.
Reliable SO operation can be performed regardless of whether the tape is running at high speed or at constant speed.

Furthermore, in correspondence with the left take-up gear 501 that is constantly rotated for the A210 mechanism 214, the right take-up gear sex is always rotated regardless of whether the tape is running at high speed or at a constant speed. 19.20 wah 7
The tape is well-balanced in terms of turbidity, turbidity, and noise level, and allows for good tape running. In this respect, it is particularly effective to use four of the same shape for the left and right winding gears 1501 and 1101, which is also economically advantageous.

Here, as shown in FIG. 22, the left and right reel stands 10
．． 11 is rotating counterclockwise in the figure, and the lever is running in the forward direction, the ASO lever 59 is not engaged directly with the friction member 102, but is engaged via the detection lever 1G. The reason for this will be explained below.

That is, in the conventional Ago mechanism, as shown in FIG. 25, a pin #JJ, 633 is provided on the ASo lever #31, and the friction member 63 is moved in accordance with the forward and reverse running of the tape.
4 presses the above pins gsz and gss respectively, and ASO
The lever 631 is biased counterclockwise in the figure about its rotation shaft 635. However, in the conventional MUSO mechanism as described above, the distance from the pin 632 to the rotation axis #35t (t) and the distance from the pin g3j to the rotation axis #35t are
The distance (Am) at 311 and ゛ will be different.If the force with which the friction member 634 presses the pin 611゜σ3J is the same, then the grip friction member 634 will press the pin 611 when the tape runs in the reverse direction. The ASO lever 631
There is a problem that the biasing force applied to the sensor is weak, which makes the operation uncertain.To solve this problem, the above-mentioned detecting device 60 is provided. That is, FIG. 26 shows the above A8
0 lever 5#, the detection/4-11, and the friction member 102 in principle. Tsuma fi, ASO
From the shaft 591 of Leno F-69 to the detection lever 60 pin 60
1 (,) and the distance (b) from the pin 601 of the detection lever 60 to the axis gos are approximately equal, and the distance from the axis 1jIs of the ASo lever 159 to the pin 591 (,) and the distance from the pin 591 of the detection lever 60 (,) are approximately equal. Pin 6 from CO axis gos
The distance M (d) at 021 is set to be approximately equal to the distance M (d). And like this, akitre
By setting @kid, the friction member 102 is connected to pin 5 #1.
Even if 9 presses either 6 #2, it will eventually be Ag3
The biasing forces for rotating the t+-49 in the counterclockwise direction in the figure can be made substantially the same, and a reliable ASO operation can be performed.

As mentioned above, the feature of this invention is that the biasing force of Ag3/59 is made substantially equal using the detection reno 4-ij Q. The operating levers 14 and 15 of the auto-reverse frequency limiting mechanism and manual reverse mechanism will now be described. That is, each of these operating levers 14 and 15 are both rotatably supported in a substantially seesaw shape. First, the operation lever 15 of the manual reverse mechanism will be explained. This operation lever 15 engages with the other end of the release lever C1 shown in FIG. 24, and when operated, the release lever 61 is moved clockwise in the figure. @By the way, PLAY (R) and PLAY (F)
Operator Je.

In the auto-reverse operating state in which both PLAY (R) and PLAY (F) operators 2 and 2 are operated, the PLAY (R) and PLAY (F) operators 2 and
, 2 and 2 are operated, the SO select lever 112 is rotated counterclockwise in the figure against the biasing force of the spring 621. For this reason, even if the release lever CI is rotated clockwise in the figure by operating the operating lever III, the locking piece six of the ASO select lever is engages with the bent locking piece 481 of the second lock plate 4J. They are not engaged and the A80 operation is not performed.

Then, in conjunction with the rotation of the release lever σ1, the lock lever 2# (see FIG. 4) is moved to the locking portion 181 of the gear 28.
The lever 283 is rotated in a direction away from the tape 283, and the tape can be switched between forward and reverse directions at any position during constant speed running of the tape.

On the other hand, the operating lever 14 of the reverse number limiting mechanism can take a first position where the constant speed reciprocation of the tape is stopped after only one reciprocation, and a second position where the reversal is performed theoretically infinitely. When the operating lever 14 is operated to the first position, the retaining portion 595 of the MU SO/4-19 in FIG. A connecting member (not shown) is interposed between the extended portion 442 and the formed extension portion 442. Here, the above PLAY (
R) and PLAY (F) When the tape reaches the end in the forward direction playback state of the auto-reverse state where both the operators 2c and 2. are operated, the ASO mechanism 24
The lever 59 is rotated clockwise in FIG. Therefore, the engaging portion 595 of the ASO lever 59 presses the extending portion 442 of the first locking plate 44 to the left in the figure via the connecting member ◇, then the first opening and the opening The PLAY (F) operating lever 43, which had been released, is now released. At this time, since the previous state is the auto-reverse state, the locking piece 822 of the ASO select lever 61 is in the second
The opening of the PLAY(R) operating lever 42 is not engaged with the bent locking piece 452 of the plate 4IO, so the PLAY(R) operating lever 42 is in the operating position.

It is being done as it is.

Then, when the tape reaches the end while being played in the reverse direction, the locking piece 622 of the first SO select lever engages with the bent locking piece 452 of the second lock plate 4j, and the second 4. Move the PC board 45 to the left in the figure. At this point, the PLAY (R) operating lever 42 is released and reciprocating playback is performed.

(9) With the operating lever 14 operated to the second position, the connecting member is moved to the engaging portion 69 of the ASO Reno arm-59.
5 and the first opening and the extending portion 442 of the rib plate 44. And PLAY (R) and PLAY (F
) When both the operators 2C12 and 2C12 are operated and the A80 select lever C2 is in the auto-reverse state, the locking piece 622 of the A80 select lever C2 is in a position where it does not engage with the bent locking piece 452 of the second opening and the lever plate 45. Each time the Q/ reaches the terminal, the mu SO
Even if the release lever 61 is rotated clockwise in FIG. 24 by the mechanism 24, the A80 operation is not performed, and the opening and the flavor 29 are rotated in conjunction with the rotation of the release lever e1, so that the tape can be turned forward or backward. The direction of playback will be switched, and the tape will theoretically run back and forth at a constant speed an infinite number of times.Here, the operation lever 14. The shape of III will be explained. That is, as shown in FIG. 27, both operating levers 14 and 15 are formed into the same shape by molding, for example, a synthetic resin material. Then, operate both /4-
14. A pair of protrusions 14 are provided in the longitudinal direction approximately at the center of the 15.
1° 142 and 151, 112 are formed, respectively. Here, the operating lever 141d is rotatably supported by being fitted into the side plate 1f attached to the main chassis 1. The rotation of the operating lever 14 is controlled so that the other protrusion 142 is connected to a substantially fan-shaped through hole 142 formed in the side plate 1f.
It is defined as the range within which it can be moved.

On the other hand, the operating lever 15 is rotatably supported by having its protrusion 1N fitted into the side plate 1f. When the operation lever 150 is rotated, the other protrusion 151 is connected to a substantially fan-shaped through hole 158 formed in the side plate 1f.
It is defined as the range within which it can be moved.

Furthermore, operating knobs 144 and 154 are fitted to one end of each of the operating levers 14 and 16, respectively. Furthermore, a pair of recesses 145 and 155 are formed in the vertical direction in the figure between the protrusions 142 and 152 of both operating levers 14 and 15 and the operating knobs 144 and 154.

Further, at the other end of both operating levers 14.11, the aforementioned connecting member is attached to the engaging portion 159 of the Ago lever 59 in FIG.
15 and the extension part 442 of the first lock plate 44, and a retaining part 146 to which a lever (not shown) for releasing the lock plate is engaged, and the other end of the release lever 61. Retaining portions 15# that engage with each other to perform manual reverse operation are formed respectively. Further, on the upper side portions of both operating levers 14 and 15 in the figure, protrusions 147° and 157° are provided.
is formed.

Here, both operating levers 14.11 are supported by leaf springs 64. That is, this leaf spring 64 has its substantially central portion attached to the side plate 1f with a screw 641, and the protrusion 141. of the operating levers 14.11.
Support pieces 642 and 643 that sandwich the portion where 152 is formed between the side plate 1f, an elastic piece 645 having a protrusion 44 that can engage with the recess 146 of the operation lever 14, and the protrusion of the operation lever 15. An elastic piece 114g is formed to press 151 and bias it counterclockwise in the figure.

First, the operating lever 14 will be explained. As mentioned earlier, this operating lever 14 is the A80 lever 5.
The engaging portion 5#5 of g and the first eye, the extending portion 442 of the ri- plate 44
A connecting member is interposed between the two and the two to allow the two to be separated from each other. Then, movement of the connecting member a)
However, the movement stroke of the retaining part 14g can be controlled by rotating the protrusion 141 near the engaging part 14i11C as an axis. It is possible to make a slight stroke corresponding to the movement stroke of . Further, when the above operation t4-14 is operated, as shown in FIGS. 27 and 28, the protrusion 644 of the elastic piece 641 is engaged with either one of the pair of recesses 145, and the auto-try i+- The first limit on the number of times
and fixed at the second position.

On the other hand, the operation lever 15 is released and engaged with the 4-g l to release the yen and rotate the f-51 to switch between forward and reverse constant speed travel. The rotation stroke of the release/4-61 is substantially large, and the operation lens 15 rotates around the protrusion 152 far from the engagement portion 156, thereby releasing the locking portion 1.
The movement stroke of 5σ can be made into a large stroke corresponding to the rotation stroke of the release lever 61.

Moreover, when the above operation /4-35 is operated as shown in FIG. 28, the protrusion 151 is pressed by the elastic piece 646 of the plate spring 64, and a biasing force in the return direction is applied. When you stop operating it, it will automatically return to its original position.

Therefore, as described above, the operating lever 14° 15 has a pair of protrusions 14 J, 743 and 15 in its longitudinal direction.
1,152, in this case, the operating lever 14 is rotated around the protrusion 141, and the operating lever 15 is rotated around the protrusion 152.
Since the operation levers 14 and 15 have the same shape, the movement strokes of the engaging portions 146 and 18g can be made to differ, making the configuration extremely simple and economical. It can be advantageous. Next, the RgC lock mechanism will be explained. That is, as shown in FIG. 29, the left and right reel stands 10.
In the upper part of the figure between 11 and 11, there is a substantially U-shaped 0RFC striker and a braker fil, which rotates so that its base ill fits into the shaft aSS protruding from the eave-like plane part 1a of the main chassis 1. freely supported. At one end of the REC strike teleper 5, a locking portion 1ris bent in an oval shape is formed, and a protrusion 1j4 is formed. Further, the REC strike and f lever-5 are formed at the other end thereof, and a coiled suge ring gsg is fixed between the round locking portion 655 and a locking portion (not shown) formed on the eave-like flat surface portion 1a. As a result, it is biased counterclockwise in the figure.

and ζ, the base 651 of the REC stop lever C5 is formed with an abbreviated extending portion 1ttr, and the extending portion 651 is formed with a protrusion 658. This protrusion 658 is engaged with one end of the RFC control lever σ6, whose approximately central portion is rotatably supported by a shaft 6#1 protruding from the eave-like flat surface 1a of the main chassis IC. ing. In addition, a bending engagement portion 6111 is formed at the other end of the REC control lever 65, and the bending engagement portion 662 is a transparent portion formed approximately at the center of the switch lever 61 having the shape shown in the figure. It is loosely fitted into the hole 671. This switch / Par 5
7, one end thereof is the eave-like flat surface portion 1a of the main chassis 1.
It is rotatably supported by being fitted onto a shaft 612 that protrudes from. Further, a bent engagement portion 673 is formed at the other end of the switch lever 6r. Here, the above REC stock! Since the lever 65 is urged counterclockwise in the drawing by the spring 656, the REC control lever σC and the switch lever 67 are urged clockwise and counterclockwise in the drawing, respectively. Also,
A spring 614 is attached to the other end of the switch lever 67.
When the switch lever #7 is engaged, the switch lever #7 is biased clockwise in the figure.Then, the switch lever 67 can be rotated clockwise in the figure, and its bent engagement portion 6730 is pressed clockwise in the figure. to a position where it comes into contact with a locking portion (not shown) formed on the dosifier 3. That is, in this position, the bent locking piece 681 formed at the upper end in the figure of the REC operating lever C8, which is provided to be slidable in the vertical direction in the figure in conjunction with the operation of the RgC operator 2d, R.E.
The opening 659 of the C strike and prepper 65 is arranged to face each other. Also, the bending engagement part 673 of the switch lever 61 has a step formed on one side of the PLAY (F) operating lever 43. The portions 431 are facing each other.

Further, a tenor mounting portion 5 is provided at the base of the high-speed slide finisher 58.
85 is formed, and this tenor 4 part 585 is formed on the upper side of the second four-way plate 45 in the figure and faces the nine-fold engagement part 4'53. Here, the PLAY (
F) When the operator 2 is operated, the PLAY (F) operating lever 43 is slid upward in the figure, and the stepped portion 43
1 is sweet.

By pressing the bending engagement portion 613 of the teleoper 61, the switch lever rtr is rotated counterclockwise in the figure.
It is also rotated counterclockwise in the figure by operating the operators J e , REW and FF operators b, xt. Furthermore, at the top of the high-speed slider 58 in the figure, there is an RE
A tapered portion 586 is formed to engage with the protrusion 654 of the C strike prepper 58.

Now, assuming that the tape is being recorded in the forward direction, the RFC
and PLAY (F) operating levers 2d and 2., the REC and PLAY (F) operating levers es,
43 is slid upward in the figure.

Then, the stepped portion 43 of the PLAY (F) operating lever 43
1 presses the bending engagement part 673 of the switch lever 61,
As the switch lever 67 is rotated counterclockwise in the figure, the bent locking piece 6111 of the RKC operation lever 68 is inserted into the opening 659 of the REC striker and prepper 65. Therefore, as shown in FIG. 30, as the switch lever 61 is rotated counterclockwise in the figure, the REC control lever 66 is rotated clockwise in the figure, and the REC stop lever 65 is moved by the sedge ring 656. It is rotated counterclockwise in the figure. Therefore, the bent locking piece 681 of the RFC operation lever 68 is in the REC stop! The lever 650 is locked by the locking portion aSS, and the REc operating lever 61 is opened at the operating position. At this time, the PLAY (F) operating lever 43 is locked to the first lever plate 44, as described above, and recording is performed here in the forward direction.

In such a forward recording state, when the chive reaches the end, as shown in FIG. 31, the second opening plate 45 is slid to the left in the figure by the action of the SO mechanism 24.

At this time, the bending engagement portion 453 of the second lock plate 45 presses the Q/4 portion 585 of the high speed slider 58, so the high speed slider 5I is moved upward in the figure. During this rounding, the tenor base portion 58I of the high-speed slider 58 is RICC strike, f
By pressing the protrusion 654 of the lever 65, the REC striker 65 is rotated clockwise in the figure against the biasing force of the spring 656. Then, RFC strike, Prepar 65
The locking portion 653 is the bent locking piece 6 of the RIC operating lever 68.
81, and the RIC operating lever 68 is returned to its original position. On the other hand, the PLAY (F) operating lever 43 is
When the first locking plate 44 is moved in the same direction as the sliding plate 4J is moved in the left direction in the figure, the first locking plate 44 is returned to its original state as described above, and is brought to a stopped state. It is.

Therefore, as described above, by returning the REC operating lever 68 using the high-speed slider 58 that is linked to the second four-way plate 45, the REC operating lever sit can be reliably returned with a simple configuration. It is something that can be done. That is, as a conventional means for returning the REC operating lever, the R
The REC control lever is returned to its original position by rotating the EC stop lever. However, with such conventional means, the configuration becomes extremely complicated and
There are various problems, such as the need to strengthen the biasing force of the sliding ring for returning the toss slider.

However, as mentioned above, the REC strike,
Since the prepper 65 is made to rotate, the RFC operation lever 68 can be released by pressing it regardless of the operation of the head slider J, which simplifies the configuration and also strengthens the slider for returning the head slider 3. There is no need to do so, and the REC operating lever 68 can be reliably returned to its original position.

In addition, as mentioned above, PLAY (R) and PLAY
(F) Since the switch lever 61 is rotated counterclockwise in FIG. 29 when the operators 2c and 2@ are operated,
The REC strike and prepper 65 are placed in the position shown in FIG. Therefore, even if you try to operate the RFC controller 2d in the forward and reverse playback state, the REC operation recorder 9-68
The bent locking piece #81 is still in contact with one end of the RICC stock lever 65, and the REC operator 2d cannot be operated, thereby preventing follow-up recording. Furthermore, when the Ry and FF operators 2b and 21 are operated, the high-speed slider 58 is moved upward in the figure, so that the chip/placement portion 586 is connected to the RFC striker and the protrusion 6 of the prepper 6j.
54 to rotate the REC stock and prepper 65 clockwise in FIG. At this time, the other end of the REC stock lever 65 is placed in a position facing the bent locking piece 681 of the REC operating lever ttS.
Even if you try to operate the REC operator 2d during high-speed driving in the forward and reverse directions, the bent locking piece of the REC operation lever 68
81 comes into contact with the other end of the RIC stock lever 65, and the REC operator 2d is rendered inoperable. In other words, the ASO mechanism 24 operates in the forward recording state, and the second cover plate 45 is slid to the left in the figure, and the first cover plate 45 is slid to the left in the figure. 44 is also moved in the same direction, and the PLAY (F) operating lever 48 is released from the locked state. Then, PLAY (F) operation lever 4
The stepped portion 431 of No. 3 is the bending engagement portion 67 of the switch lever d1.
3, the switch lever 67 is rotated clockwise in the figure. For this reason, the RHO control control lever and the 8RICIC stop lever #5 are rotated counterclockwise and clockwise in the figure, respectively, so that the locking portion aSS of the REC strike and f lever 65 engages the bending portion of the REC operating lever 68. Since it is detached from the stopper 611, the REC operation lever is
The lock will be released.

Next, the high-speed operating lever J5 previously explained in FIGS. 17 and 18 will be explained. However, here, as shown in FIG. 33, the high-speed operation lever 55 has a pair of high-speed levers Δ-551°551 of the shape shown arranged side by side in opposite directions,
The explanation will be given assuming that the high-speed levers lli, llf are drawn to each other by being engaged with a sedge ring 691 between the projections it, g, and ss formed at one end of the levers. Both high speed levers 5H.

5JF is # in the combined state! As shown in Figure 34,
Screw C#5゜##'# through the links 614, 814 to the elongated hole ##J, 691 formed in the longitudinal direction.
are inserted through each, and the cough screws 696°dgl are screwed onto the mounting plate 6#C stacked on the main chassis l, thereby being supported so as to be freely slidable in the longitudinal direction.

Here, both the high speed levers 55fi and 55F have a 35th
As shown in the figure, retaining pieces 897, 698 are provided on each upper side.
The protrusion 543 of the high speed drive lever 54 is sandwiched between the mosquito engaging pieces 69'l and 698.

For example, when the FF operation element 2f is operated, the FF operation lever 51 is slid upward in the figure in conjunction with this operation. Therefore, the bending engagement piece 571 of the FF operation lever 51 presses the cheek 2 portion 555 of the high speed lever 551, causing the high speed lever ssr to slide to the left in the figure. Then, the high-speed lever 55lj, which is interlocked with this high-speed lever 557 via the Sgel ring 691, is slid in the same direction.
The retaining piece 692 presses the protrusion 143 of the high-speed drive lever 54, causing the high-speed drive lever 54 to rotate clockwise in the figure. , Chee! High-speed driving is performed.

ζ At this point, the Q/4 portions 61i4, 61 and 5 of each of the high speed levers 556°sir are 0 as shown in FIG.
The angle is changed in three stages.

That is, in a state where each of the tenor parts 684, 568, RiW, and FF operation lever 56.11 is pressed, the engagement angle with respect to the bent engagement piece 561.5rl becomes shallower in sequence.In other words, Rff and FF operation lever-J#, 6
The inclination is changed to reduce the force required to operate F. Therefore, for example, when the FF operating lever 51 is pressed upward in the figure with the same force, when the angle of the second part SSS changes, the FF Since the load on the operating lever 51 is reduced, it can be operated quickly. Therefore, high speed gear 542
The gear 111 and the gear 202 can be brought into mesh with each other quickly. Regarding point B, as shown in Fig. 36, assuming that the slope of the second part 514 and 511 is uniform, when the RLW and FF operation levers are pressed gently with the same force, 1 high speed. The gear 642 is meshed with the gears 101, 111 and tttx, xoz.Therefore, there is a problem in that an unpleasant sound is generated the moment the teeth come into contact.

However, Qi/Part 4 51i4. For example, if the FF operating lever 51 is pressed with the same force, the operating load will be Since it is lighter, the operation can be made faster. Therefore, the high speed gear 542, the full gear 111, and the gear XOX can be meshed in the K corner, and the generation of unpleasant noise can be prevented. .

First, both high-speed levers 656 and 551 are interlocked with each other by springs 691, so even if you accidentally operate the REW and FF operation levers, jf, at the same time, the springs 691 will only stretch, and the high-speed levers jie and ssr will
37 shows the details of the attachment of the high-speed drive lever 54 and the shaft 541. In other words, the high-speed drive lever 54 has the following:
A through hole 544 is formed through which the shaft 541 is inserted. A pair of guide pieces 545, 545 and 546 are provided on the periphery of the through hole 144, respectively, at positions facing each other.
．． 546 is provided protrudingly. Among these, the guide piece 546
, 546 are made taller than the guide piece 1d5.845], and are bent inwards to form locking portions 14F, 64F at their tips. t, above axis 1
41 has a small shaft portion 548 smaller in diameter than the shaft 541 formed at its tip, and a collar portion 641 formed at the tip of the small shaft portion 548.

When the high-speed drive lever 54 inserts the shaft 541 tube into the through hole 544 from above in the figure, the flange 54# pushes away the locking part sarg54F of the guide piece 546.54g and temporarily engages the guide piece 646.

Push #54 outward. Then, when the shaft 541 is inserted deeper into the through hole 544, the locking portions 54F and 547/ of the guide portions 546, 546 are locked to the lower end of the collar portion 641 in the figure, as shown in FIG. Here, the high-speed drive lever 54 is rotatably attached to a shaft 54JfC. Here, in FIG. 37, the f-id portion 54c.

54g are provided to prevent the shaft 641 from being pulled out by the 2) O locking portion 141a541, but it is also possible to have one guide portion 54#, and even one locking portion 54'l can prevent the shaft 641 from being removed. 541 can be sufficiently prevented.

Next, FIGS. 39(a) and 39(b) show details of the attachment of the high-speed drive lever 54 and the high-speed gear 542.
C), that is, one end K of the high-speed drive lever 54
A Fi axis fr01 is provided protrudingly. The O-axis rot is inserted into a bearing VOX that is protruded in a substantially cylindrical shape from the center of the first high-speed gear 202, and rotatably supports the first high-speed gear rot. Then, the first high speed gear ve
A substantially ring-shaped friction body 104, which is shown by a group of minute dots in the figure, is attached to the plane part of x. Also, the first high speed gear 1#
A groove yes along the outer periphery of the armpit bearing 101 is formed at the tip of the second bearing 703.

The bearing 101 of the first high-speed gear 702 is
A light-transmitting hole ray is formed in the center of the high-speed gear 106 of the irises 2.
The second high-speed gear 1#I is inserted therein and rotatably supports the second high-speed gear 1#I. This second high-speed gear Fall is formed with a substantially curved side surface, and its bottom surface is in contact with the MICI high-speed praise wheel rotOJIII body 1-4. A coil-shaped spring rot is installed in the recess of the core sgelling 7.
080 In the upper part of the figure, a spring bearing ROM is attached to the bearing 101 of the first high speed gear 102. That is, this spring receiver rap is formed with a substantially concave side surface, and a flange portion 711 that engages with the spring rott is formed in the opening thereof.

In addition, the splash receiver rap has the above-mentioned bearing 703 on its bottom.
a large-diameter tenth through hole 112 through which the bearing FO can be inserted;
A second through-hole part '11 with a small diameter that can be fitted into the JOg part yes
1 are consecutively formed into a substantially pot-shaped shape. Furthermore, a protrusion 114 is formed at the center of the circumference of the @10 through hole 712 in the opening of the spring receiver 109.

For this reason, first push the bearing voHc through the first through hole 712 of the spring receiver 1o-, and then press the spring receiver vas
'', and then insert the second through hole frlB into the bearing 7.
o1 to fit into the groove section raillc. Then, the second through hole 111 of the spring receiver 1#9 is locked in the groove voi, so the first and second high speed gears rez, yo
g is supported while being pressed by the urging force of the spring 108 via the friction body 704. Thereafter, a substantially cylinder-shaped pusher is attached to the tip of the shaft 701 of the high-speed drive lever 54.
T-Press in. Then, the peripheral edge of the pusher 5-115 comes into contact with the protrusion 714 of the spring receiver 109, and the spring receiver 70
The second through hole via 9 is held so as not to separate from the groove ros of the bearing 703, and the first and second high speed gears vox,';rot are rotatably supported by the high speed drive lever 54 here. It is something.

Here, the first high speed gear 702 meshes with the gears 10J, 111 of the left and right reel stands 10.11,
Second high speed gear 10t! 7 sea wheels xtz, xo
The gears 192 and 202 mesh with each other. For this reason, when the tape reaches the end while running at high speed and the rotation of the left and right reel stands J#, 77 is stopped, the first
and the second high-speed gear F OJ , 7.06 is designed to prevent unnecessary loads from being applied to the tape.

The first and second high speed gears 702, 106 are held integrally by fitting the second through hole 713 into the groove 705 of the bearing 703 formed with the first high speed gear VEXK. In addition, the configuration can be made extremely simple and economically advantageous. That is, as mentioned above, when the tape running drive mechanism 22t is configured using all gears, all the gears are made of nylon, for example, in order to prevent unpleasant sounds when the gears mesh and gear squeal when rotating. It is molded using a soft synthetic resin material such as Pelprene. For this reason,
For example, it is difficult to press-fit the bearing 703 into the spring receiver 7091 and support it in terms of strength.
, The configuration is as shown in (b).

Regarding this point, conventionally, Figs. 40(a) and (b)
It is configured as shown in . That is, this means that the 182 high speed gears 72 are mounted on the bearing 122 of the first high speed gear 121.
3 is inserted, the spring 124 is installed, and the spring receiver 725 is press-fitted into the bearing 121.
At that time, metal reinforcement parts and shell rxi are installed inside the bearing 122.
The bearing 122 is reinforced by intervening with the bearing 222, and in this state, the spring receiver 125 is press-fitted into the bearing 222 to support it. However, FIG. 40(a),
The conventional means shown in (b) requires a large number of parts, complicates the structure, and requires metal reinforcing bars.
This is economically disadvantageous because it uses

Therefore, as shown in Figure 39 (a) and (b), the # of the spring receiver 70 is corrected! By fitting into the groove 10J formed in the bearing 703 of the high speed gear 761 of the through hole 713t-$1 of No. 2, the number of parts is small and the assembly work is easy, and the #Il and No. 2 high speed gear rO'
#, 70G, and is economically advantageous.

Further, as shown in FIG. 41, the spring receiver xo9 includes a second through hole 57Jj (corresponding to the center part on the 0th circumference) and a protrusion 116 formed at the 9th peripheral edge, and the protrusion 716t- Second
high-speed gear 1 (to be brought into contact with the inner circumference of J6),
Similar to the protrusion 114 shown in FIG.
The second through-hole portion 713 can be held so that it does not separate from the groove portion ros of the bearing 701.

Next, the attachment of the flywheel 19.11O will be explained in detail. That is, as shown in Figure 1K42, the sub-chassis 18 includes a motor 13 and a bearing 2.
11.211 are attached respectively. This bearing 2ix
, six are made by molding a synthetic resin material, and approximately in the center thereof there is a long hole J J J , which is long in the width direction.
214 is formed. The bearings 211 and 212 have screws 21 inserted into their elongated holes 213 and 214.
5, 21.6 are screw holes 1 formed in the sub-chassis 18
They are attached to the sub-chassis 18 by being screwed onto B1.11jl, respectively.

Here, the flywheel 19 and the bearing 211 will be explained below, and since the other flywheel 20 and the bearing 212 have the same configuration, the explanation thereof will be omitted.

That is, as shown in FIG.
The upper part of the capstan 10 (in the figure), which is the rotating shaft of
It protrudes upward in the figure. In addition, a flywheel 1519 is coaxially fitted to the lower part of the capstan 1 in the figure via a substantially cylindrical connecting member VSS metal, and the flywheel 1# and cab stay 1 are integrally connected. It is designed to be rotated. Further, a portion of the capstan r between the bottom plane s11 and the flywheel 1# is integrally formed by molding a synthetic resin material, and is formed at the center of rotation of the gear 191, 191. It is inserted through the through hole 134. And the gear 192
A protrusion 135 is formed at the bottom in Figure 0, and the protrusion 7
35 is fitted into a recess 736 formed in the upper part of the connecting member 733 in the figure, so that the gears 191 and 192 are rotated integrally with the flywheel 19.

The bearing 211 also has protrusions 737 on both ends thereof.
7311 are formed respectively, and the protrusion 1B7.7
:all are fitted into through-holes 1g1.181 formed in the sub-chassis 18, thereby being positioned and attached to the sub-chassis 18. moreover,
The bearing 211 is formed with an elastic portion 139 that extends from one end of the bearing 211 in a substantially tongue-like manner to a substantially central portion thereof.

The lower end of the capstan 10 in the figure is a long hole 184 formed in the sub-chassis 18 (as shown in FIG. 44 (&), it is formed long in the width direction of the bearing 211).
by inserting the round bearing 740 into the bearing No. 21.
10 elastic part 739. For this reason,
Since the capstan 1 is pressed upward in the drawing by the bearing 2110 elastic portion 739, it is possible to prevent thrust backlash in the axial direction.

Here, one protrusion 738 of the bearing 211 has a fourth
As shown in Fig. 4(a) K, it is cut into a substantially elliptical shape and has two connecting parts f141. It is provided in a protruding manner at one end of the lateral internal member 743 which is connected to the bearing 211 only at f/41. A substantially cross-shaped groove portion 144 is formed in this lateral inner member 143.

Here, both protrusions ysr and rs of the bearing 2110 are
A is fitted into the through hole 182°III of the sub-chassis 18, and when a cross screwdriver (not shown) is applied to the groove 144 of the lateral inner member 743 and rotated, the connection is made as shown in FIG. 44(b) K. *141.7141 is torn and the lateral internal member 141 is separated from the bearing 211. Therefore, as shown in the figure, the bearing 211 is pressed by one end of the lateral inner member 1411 and is slightly rotated about the protrusion 131 along the elongated hole 213.

Here, one end of the bearing 740 is connected to the sub-chassis 1.
After passing through the long hole 184 of No. 8, it is fitted into the long hole 145 formed in the longitudinal direction of the bearing 211. For this reason,
When the bearing 211 is rotated about the protrusion 737, the bearing 740 is also moved in the same direction, so that the inclination angle of the capstan 1 can be adjusted.

Therefore, as described above, the elastic portion 13 is attached to the bearing 211.
Since the capstan 7 is pressed in one direction by the elastic portion 739, the capstan 7 can be prevented from being thrust with an extremely simple structure.

In this regard, conventional bearings have a means as shown in FIG.
A coiled spring 14Ll is interposed between the flywheel 19 and the sub-chassis 18 to press the flywheel 19 upward in the figure and suppress thrust rattling. However, as shown in FIG. In addition, by pressing the lower end of the capstan 1 in the figure with the elastic part 739 of the bearing 2110, the structure is simple and the assembly work is easy.)
This book is also economically advantageous.

Next, the PAUSE operator Jg will be explained. That is, as described above, the PLAUSE operator 2g is opened at the operation position by the pressure mechanism in the first suppression operation, and is released from the locked state in the second suppression operation. . And below,
The details of the siege and sieve mechanism will be explained. That is, in FIG. 46, 15 is the PAUSE operator 2g.
Nine pins are provided so that they can slide up and down in the figure in conjunction with the operation of
This is the AUSE control lever. The upper end portion of this PLAUSK operating lever 150 in the drawing is supported by a guide portion 751 formed on the straight plane portion 1a of the main chassis 1 so as to be freely slidable in the vertical direction in the drawing. Furthermore, a bent engagement piece 152 is formed on one side of the PAUSE operation lever 16.

Here, a shaft 761 is provided protruding from the lower part of the straight plane portion 1a of the main chassis 1 in the drawing. A base portion 164 of a PAUSE lock member 16, which is integrally molded from a synthetic resin material and has a base portion 164 from which a lock portion 762 and an elastic portion 763 (to be described later) extend, is rotatably fitted into this shaft 761. has been done. This base 164 is PAUS
It is loosely fitted onto the shaft 761 so that not only the lock member 76 can be rotated clockwise and counterclockwise in the figure, but also the lock part 162 can be rotated toward the back in the figure. be. First, the lock part IS2 will be explained. On one side of this lock part 76'2, there is a PA
When the U8g operating lever 7 is moved upward in the figure, the tapered portion 156 becomes a relief from the bent engagement piece 752.
, and pAU8, a locking portion 1 is formed which bites into the bent engagement piece 752 when the operating lever 15 is moved downward in the figure. The above PAU
The SE locking member 16 has a guide cheek I4 portion 161 formed above the locking portion 1660 in the drawing to guide the bending engagement piece 752 of the PAU8E operating lever 7 in a direction to be locked with the locking portion 166. There is. Furthermore, the above-mentioned PAUSE lock member 16 is provided with a taper portion 168 that is inclined from the bottom to the top in the figure and sequentially toward the back in the figure, on the side of the O-locking portion 166. . In addition, the above PA
A stepped portion 76g is formed inside the locking portion 166 of the U8E locking member 76.

On the other hand, the elastic portion 163 of the PAUSE opening member 760 is curved into a substantially S-shape from the front, as shown in FIGS. This elastic part IC1 has a plurality of elastic parts (four in the illustrated case) at approximately equal intervals.
node 770. . . , 710 are formed, and the thickness of each node portion 710, . . . , 770 becomes gradually thinner toward the distal end. Here, the tip end of the elastic part 763 is locked by a guide part 751, as shown in FIG.

Therefore, the lock portion 162 is biased counterclockwise in the figure by the elastic portion 163, but the rotation of the lip portion 162 is caused by the lock portion 762 being bent and engaged with the PAUSE operation lever 7. It is made up to the position where it comes into contact with the piece 752.

The operation of the push-de-sheath mechanism constructed as shown in FIG. 46 will be described below. First, when the PAUSE operator 2g is depressed, the PAU 8g is operated in conjunction with this operation, and I4-75 is moved upward in FIG. 46. Then, the bending engagement piece '151 of the PAUSE operation lever 7 presses the tension part 76 of the PAUSE port 76, and the port 762 presses against the elastic part 7σ1.
It is rotated clockwise in the figure against the urging force of. and,
When the PAUSE operating lever 7 is moved sufficiently upward in the figure, the bent engagement piece 152 will lock the PAUSE lock member 7.
6 is brought into contact with the guide cheek part 767.

In this state, if you stop the suppression operation of the PAU8E operator 2g, the PAUSE operation lever will not move!
Since the ring is always biased downward in the return direction in the figure, as the bent engagement piece 752 is moved downward in the figure, the opening and the recessed part 162 move toward the guide taper part. It is rotated counterclockwise in the figure along the inclination of IC1.

When the bending engagement piece 152 separates from the guide taper portion ygy, the step portion 169 of the lip portion 162 comes into contact with the bending engagement piece 752, and in that state, as shown in FIG. PAUSE operation lever operation lever - 6 piece 752 is PAU
It is locked to a locking portion 16# of the SE locking member r#, and the PAUSE operating lever 7 is rotated here at the operating position.

When the PAUSE operator It operating pressure is operated again in the P-locked state, the PAUSE is operated again and zf-15 is moved upward in the figure. Then, the bent engagement piece 752 is detached from the stepped portion 769, so that the locking portion 762 engages with the elastic portion 7.
It is further rotated counterclockwise in the figure by the biasing force 63. Therefore, the tenor 9 portion 768 of the lock portion 762 is located below the bent engagement piece 752 in the drawing. At this time, the PA
When the suppressing operation of the USE operator 2g is stopped, the PAUSE operating lever 5 is given a return force downward in the figure, so its bent engagement piece 752 presses the tapered portion 768. The hook portion 7ε2jd is rotated toward the back in the figure and escapes the bending engagement piece 752, so that the PAU8g operation lever is eventually returned to the original position shown in FIG. is to be carried out. Here, even when the lock portion 762 is rotated toward the back in FIG. 46, the urging force of the elastic portion 163 causes the lock portion 76
2 is about to be returned to its original position.

Therefore, as mentioned above,
6 is formed with an elastic portion 163 that applies a return force to both the clockwise and rearward rotations of the rim portion 7#2, making the configuration extremely simple and reliable! ,
It can be made to perform sheep-pushing motions. In this regard, the conventional brush island-push & mechanism
The opening and rim of the locking member and the spring that applies a return force in two directions to the opening and rim are constructed as separate bodies.This complicates the configuration and makes assembly difficult.

However, by integrally molding the lock portion 162 and the elastic portion 763 from a synthetic resin material, it is extremely easy to manufacture and assemble. Further, the joint portion 210. ....

Since the thickness of the elastic part 163 is changed stepwise for every 110, compared to changing the thickness in the shape of Teno's arm, it is easier to cut out the mold when the mold is overflowing.
This can be easily done by pressing.

In addition, as shown in the above-mentioned elastic part rgs/dK49 figure' (,), the thickness was changed, but the 4th
9. K so that the width changes stepwise as shown in Figure 9(b).
Of course you can.

Next, as shown in FIG.
93, which is rotatably supported by the ASO
After the lever 59 is fitted onto the shaft j#3, it is pressed down by a spring portion 771 of the leaf spring 71 from above in the figure. This plate spring 11 has a plurality of spring portions 112° extended and bent in substantially the same manner as the spring portion 7ri described above.
712 is formed. The leaf spring 77 has a plurality of spring portions 772 . --, A8 above by 772
0 Together with the Q-bar 59, it also holds down other predetermined movable parts 18 and the like supported by shafts protruding from the eave-like flat surface portion 1a of the other main chassis 1.

The leaf spring 71 has an engaging elastic piece 174 extending from its base VVS into a cylindrical fitting portion having a substantially flat opening projecting into the eave-like flat portion 1 of the main chassis 1. It is attached to the main chassis 1 by being fitted into the main chassis 7j. Engaging elastic piece 1 of this plate spring 71
14, as shown in FIG. .1fi6 is the engaging elastic piece 7140 fitting part 7
9 in the insertion direction. On the other hand, the fitting part 1
9, a locking portion 175.7r' of the engaging elastic piece 114;
A cutting hole 193 is formed in the surface 791 facing i6 and extends downward in the figure from the opening yes. Therefore, when the engaging elastic piece 714 is first inserted into the fitting part r9, its engagement is The engagement elastic piece 714 is prevented from coming out of the fitting part 1# by the action of the stop parts 175 and 116.Next, when the engagement elastic piece 714 is removed from the fitting part 79, Insert a jig, such as a flat head screwdriver, into the cutting hole 793 of the fitting part 19 to open the locking parts vvs, r.
It can be easily pulled out by pressing y6 and pulling the retention elastic piece 114 in that state.

Therefore, according to the configuration shown in FIG. 51, the leaf spring 71t'' can be reliably attached to the main chassis 1, and the leaf spring 11 can be easily and effortlessly removed during repair or inspection work, for example. It is something that can be done.

Finally, the attachment of the cassette lid opening and the knife 16 will be explained. That is, as shown in FIG. 52, the cassette lid opening and the knife closure 16 are in the shape of an elongated plate, and at the lower part of the figure there is an engaging part that is interlocked with the 5TOP operator 2a via the maple eject mechanism. 161 is formed. ``Also, the above cassette lid opening, dislider 160
A protruding opening 163 is provided at the upper part of the figure, and has a locking part 162 at its tip for locking a cassette lid (not shown) in the closed position.

Here, the cassette lid opening, the half surface part 1 of the box slider 16
64 is formed with a first through hole 165 which is elongated and narrow in width from the root portion of the mouth portion 163 downward in the figure. A second hole 166, which is wider than the first core hole 165, is formed at the bottom of the iris hole 165 in the figure.

Furthermore, an elongated third through hole 161 having approximately the same width as the first through hole 165 is formed at the bottom of the 20th through hole 166 in the figure. 16
As shown in FIG. 53 ( ), a thin elastic piece 161 is formed at the lower end of the second through hole 1611 at the lower end of the second through hole 1611 . has been done.

On the other hand, as shown again in FIG.
The guide portion s has a width that can be loosely fitted into the first through hole 165 of No. 6, and has a height equivalent to the wall thickness of the flat portion 164.
et is installed protrudingly. A locking portion g having a width that can be loosely fitted into the second through hole 166 is provided at the tip of the guide portion 801.
os is formed.

First, as shown in FIG. 53(b), the locking portion 802 is inserted into the th2 through hole 166 of the skein/top lid lock slider 16. At this time, the tip of the elastic piece 168 is pressed upward in the figure. In this state, Fig. 53 (
As shown in C), the cassette lid opening and slider 1 liter
- When slid to the right in the figure, the guide portion 801 is fitted into the first through hole 165, and the elastic piece 16m is returned to its original state. For this reason, the cassette lid lock slider
Even if the elastic piece 168 is slid to the left in the figure, the tip of the elastic piece 168 comes into contact with the guide part 1101, and the locking part 802
This prevents the cassette lid opening and the knife cover 16 from being removed. The cassette lid opening and the box slider 16 can be slid over the length of the first through hole 165 to open and close the cassette lid. For example, the assembly can be accomplished by simply inserting the locking portion 802 into the second through hole 161 and slightly shifting it, thereby making the assembly work extremely easy.

Further, the cassette lid lock slider 16 can be easily formed by molding a synthetic resin material, which is economically advantageous.

Here, as shown in FIG. 53(b), the locking portion 802 is formed broadly in the longitudinal direction of the skein, the lid opening, and the knife 16 relative to the guide portion 801. It goes without saying that the locking portion 802 may have the same length as the guide portion 801 in the longitudinal direction of the cassette lid opening and the knife cover 16.

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

Therefore, as described in detail above, according to the present invention, it is possible to stably and reliably detect tape running stop with a simple configuration, and it is also possible to detect a stoppage of tape running with a simple configuration, and also to provide a highly effective system suitable for use in a tape recorder having an auto-restart/output mechanism. It is possible to provide a tape running stop detection mechanism that is suitable for closing a tape recorder.

[Brief explanation of drawings]

No. 1 and No. 2 companies each have nine cassettes to which this invention is applied,
) A front perspective view and a rear perspective view showing the tape recorder, Figure 3 is a rear perspective view showing the state in which the subchassis and flywheel have been removed from Figure 2, and Figure 4 is the same cassette recorder. A configuration diagram showing the basic configuration of a forward/reverse switching mechanism for tape running in a recorder. Figures 5 and 6 are respectively explanatory diagrams of the operation of the forward/reverse switching mechanism.
b) External view and operation explanatory diagram showing the head rotation mechanism linked to the ti forward/reverse switching mechanism, Figure 8 is PLAY (R)
and (F) a configuration diagram showing the relationship between the Mk operating lever and the first and second lock plates; FIG. 9 is an explanatory diagram of the operation in FIG. 8;
0 is a block diagram showing the locking mechanism of the PLAY (6) operating lever, FIGS. 11(a) and 11(b) are explanatory diagrams of the operation of the same mechanism, and FIG. 12(a). 13(b) is a configuration diagram and an explanatory diagram respectively showing a conventional opening and closing mechanism, FIG. 13 is an exploded perspective view showing the meshing state of gears in the forward/reverse switching mechanism shown in FIG. 4, and FIG. 14 is the same. FIGS. 15 (&) to () are configuration diagrams showing means for determining the meshing position of gears.
, ) are respectively perspective views showing modified examples of the positioning means for the same gear, FIG. 16 is an exploded perspective view showing another example of the positioning means for the same gear, and FIG. 17 is a configuration diagram showing the tape running drive mechanism. Fig. 18 is an explanatory diagram of the operation of the tape running drive mechanism, Fig. 19 shows an embodiment of the tape running stop detection mechanism of the tape repuder according to the present invention, and is a configuration diagram showing the ASO mechanism. 21 to 24 are explanatory diagrams of the operation of the ASO mechanism, Figure 25 is a configuration diagram showing the conventional ASO mechanism, and Figure 26 is Figure 19. 27 is an explanatory diagram showing the principle of the ASO mechanism as shown in FIG. , FIG. 29 shows RE
A block diagram showing the locking mechanism of the C operation lever, Figures 30 and 31 are respectively explanatory views of the locking mechanism, and
2 is a configuration diagram showing another example of the same locking mechanism, FIG. 33 is an exploded perspective view showing the high-speed tape running drive mechanism of the tape running drive mechanism shown in FIG. 17, and FIG.
The figure is an exploded perspective view illustrating the assembly of the same high-speed guide, Figure 35 is a configuration diagram showing a high-speed tape running drive mechanism using the same high-speed guide, and Figure 36 is a conventional tape high-speed running drive. FIG. 37 and FIG. 38 are a configuration diagram showing the mechanism, respectively, and an exploded perspective view and a side sectional view showing the fitted state of the high-speed drive lever and shaft of the tape high-speed running drive mechanism shown in FIG. 35, respectively.
9(a) and (b) are an exploded perspective view and a side sectional view showing the connection state of the high-speed drive lever and high-speed gear, respectively,
Figure 40 (1) # (b) is an exploded perspective view and side sectional view showing a conventional connected state, Figure 41 is a perspective view showing a modification of the connected state shown in Figure 39, and Figure 42 is a flywheel. Fig. 43 is a side sectional view showing the relationship between the flywheel and the bearing, and Fig. 44 (a) and (b) show the bearing installed on the sub-chassis. Explanatory drawings, Fig. 45 is a side sectional view showing the structure of a conventional flywheel bearing, Fig. 46 is a configuration diagram showing the push and pull mechanism of the PAUSE operator, and Fig. 47 (
a) and (b) are a front view and a side view showing the main parts of the Gussie Pussier mechanism, respectively, and Figure 48 is the Gussie 1.
- Explanatory diagram of the operation of the G, S & mechanism, Fig. 49 (a), (
Fig. 50 is an exploded perspective view showing a state in which the A80 lever is supported by a leaf spring; Fig. 52 is an exploded perspective view showing the attachment of the spring, Fig. 52 is an exploded perspective view showing the cassette lid lock slider, and Figs. FIG. 1...Main chassis, 2...Operation unit, J...Head slider, 4...To recording/playback, 5, 6...Pinch roller, r, tt-...Capstan, engineering ···fart,
10--left reel stand, 11--right reel stand, 12--tape kakunta, 13--motor,
14゜15...Operating lever +, 1g-Cassette lid locking screw, JF...Column, 18...Sub-chassis, It, 20--Flywheel, 211.212--
Bearing, XZ...Tape running drive mechanism, LL...R
EC lock mechanism, J 4-ASO mechanism, 25...Left playback slide, 1g"° right playback slide, 21...Reverse drive lever, J l-@car, 29...Lock lever-130... - Control slider, 31... Drive slider, 32... Erasing head, 33... Head supporter,
34...Head mounting structure, 35...To, P base plate, 3
6...Gear, 37...Sectoral gear, 31...Tape, 39...Connection line, 40...Arrow, 41...Toshino Solinda, 42...pLAy (R operation lever +
, 4 s...PLAY (F) operation lever, 44...
・First lock plate, 45...Second opening, lever plate, 46・
・・Lock member, 47-・・1st C1li car, 4 g
...Second gear, 491...Recessed portion, 492...Step, 493--Groove, 501--Left winding gear, 502-
...Right winding gear, 51...Left winding lever, 52...
Right winding lever, 5 J 1 , 532... Pinch lever, 64... High speed drive lever, 55... High speed operation lever, J tr...-RAW operation V 14-151.
...FF operation lever, 58...High speed slider, 59.
...ASO lever, 60...Detection lever, 61...
Release lever, 61...A80 select lever, 64...
...Plate spring, 65...REC strike, braker, 6#.
・REC system m-ray-'f-157...Switch lever, 61...REC operation lever, 15...PAUSK
Operation lever, F #-PAU8E EX ff 7 member, y y-... plate ffne, 11... movable parts, 19.
··Fitting portion. Applicant's representative Patent attorney Takehiko Suzue Figure 6 Figure 7 Figure 43 Figure 11 (@) (b) Figure 12 Figure 13 'EL284 Figure 21 Figure 2- Figure 33 jI Figure 35 Figure 39 Figure 40 Figure 42 Figure 44F 71J 211 Figure 45 1981/2°f0 Commissioner of the Patent Office Shima 1) Haruki Tono 1, Incident Display Special I! 11 1982-149778 No. 2, Name of the invention: Tape running stop detection mechanism for tape recorder 3, Relationship with the amended case Patent applicant (307) Tokyo Shibaura Electric Co., Ltd. 4, Agent January 26, 1982 On Day 6, the figure number (crow) (b) was added to the drawing subject to the amendment, Figure 7 of the content drawing of the amendment, as shown in the attached drawing.

Claims (1)

[Claims] a first rotating body that rotates in conjunction with tape running; a friction member that is provided coaxially with the first rotating body and rotates integrally with the skeleton 1c1 rotating body with a predetermined frictional force; The eccentric force input part of the #E20 rotating body, which has a retaining part of the member -am secured in one part, is rotatably supported in the center part, and rotates irrespective of the tape red line in the other part. It has a second retaining part that comes into contact with the circumferential surface, and when one end of the friction member presses the IC)gA joint part, the second retaining part is pressed against the eccentric force input part. A control lever capable of performing a rocking motion, and a third retaining portion with which the other end of the friction member engages, one end of which is rotatably connected to one tip of the control lever. and is rotatably supported at the other end of the friction member, and when the other end of the friction member presses the third retaining portion, the retaining portion of the control lever lever 2 is brought into pressure contact with the eccentric lever 5. a detection lever that swings the control lever; and a tI of the control lever that is provided on the second rotating body and stops at the outermost circumferential position of the front center cam portion when the first rotating body stops rotating. and an engaging portion of chick 4 that detects the stop of tape running by engaging with the retaining portion of /12 and moving the control lever to a position outside the range of the swinging movement, If the distance 1(b) from the rotation center of the detection lever to the connection part with the detection lever is approximately equal to the distance 1(b) from the rotation center of the detection lever to the connection part with the control lever, then 4. , the distance (e) from the center of rotation of the control lever to the first engaging portion is approximately equal to the distance 111(d) from the center of rotation of the detection lever to the third retaining portion; A tape running stop detection mechanism for a tape recorder that uses a force of 4 g.