JPH03181048A - Tape player - Google Patents

Abstract

PURPOSE:To reduce the number of parts and the assembly manhours and to prevent malfunction by pressing of a lock lever against a turning lever to the side of an anti-high speed rotational transmission system when the lock lever is released from its locking and holding this state with a mode lever moved into a play position. CONSTITUTION:A play mode forming system is composed of the mode lever 82, a cam gear 67, the lock lever 74 and an electromagnetic plunger 63, etc. Then, when the lock lever 74 is released from the locking by the electromagnetic plunger 63, the turning lever 50 for a high speed traveling mode is pressed by the lock lever 74 against the side of the anti-high speed rotational transmission system 39, and this state is held by the mode lever 82 moved into the play position. Consequently, the required thing at the time of forming the play mode that the turning lever 50 for the high speed traveling mode is prevented from turning into a meshing position can be performed by utilizing the movement of the play mode forming system. By this method, the number of parts and manhours for assembly is reduced, and malfunction is prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION The tape player of the present invention will be described in detail according to the following items.

A. Industrial field of application B3 Overview of the invention C8 Background technology 1 Problem to be solved by the invention E1 Means for solving the problem F. Example a, Overview of tape player [Figs. 1 to 3 b, capstan, reel stand [Figs. 1 to 4, 7
Figures, Figures 12 and 13] C. Head section [Figures 2 to 4, Figures 6, 12,
Fig. 13] d. Mode fi types [Fig. 1, Fig. 10 to Fig. 13] e. Drive unit [Fig. 1, Fig. 4, Fig. 5, Fig. 7, Fig. 10]
Figures to Figures 14] f. Reel table rotation system [Figures 1, 7, 9 to 1
[Figure 4] f-1, High speed rotation transmission system [Figures 1, 7, 10 to 14] f-2, Low speed rotation lever [Figures 1, 7, 12 to 14] [Figure 14] f-3, high-speed rotation lever, formation of high-speed travel mode [Figures 1, 7, 9 to 14 f-3-a, high-speed rotation lever f-3 -b, High-speed running mode formation g, Mode formation system g-1, Sub-chassis, Electromagnetic plunger [Fig. 1, 4
g-2, cam gear C Fig. 1, Fig. 4, Fig. 5, Fig. 7, Fig. 7, Fig. 10 to Fig. 14]
8, 12 to 14] g-2-a, structure g-2-b, support and rotation g-3, lock lever [Fig. 1, 4, 5, 7
Figures, Figures 10 to 14] g-3-a, structure g-3-b, prevention of rotation of cam gear and its release g-4, play lever [Figures 1, 3 to 347,
Figures 10 to 's14] g-4-a, structure g-4-b, support to mechanical chassis, etc. g-5, movement of play lever g-5-a, initial movement g-5-b, forward movement -g -5-c, Backward, Head push lever [Fig. 1, Fig. 3 to Fig. 7, Fig. 12 to Fig. 14] i. Play mode forming operation, etc. [Fig. i1, Fig. 3 to Fig. 14] Figure 5] i-1, Stop mode [Figures 1, 3 to 5] i-2, Formation of normal play mode, etc. [Figures 12, 14] 1-2-a, Mode formation 1 -2-b, Locking of the first high-speed rotating lever 1-2-c, Cancellation of normal play mode i-3, Formation of reverse play mode, etc. [Figure 13] 1-3-a, Mode formation 1 -3-b, Locking and mode release of the second high-speed rotation lever j, Mode storage means [Fig. 1, Fig. 4, Fig. 5, Fig. 7, Fig. 12, Fig. 13] j- 1. Memory switch, memory slider j-2, memory lever j-3° operation G1 Effects of the invention (A. Field of industrial application) The present invention relates to a novel tape player. Specifically, it is a tape player in which a single drive section rotates the reel stand in a play mode for recording or playing back, and in a high-speed running mode in which the tape runs at high speed such as fast-forwarding or rewinding the tape. , a rotary lever for high-speed driving mode, that is, supports an intermediate gear inserted between the drive section and the high-speed rotation transmission system, and rotates the intermediate gear by the drive section to move the intermediate gear to the high-speed mode. It is equipped with a rotating lever that is biased with rotational force in the direction of meshing with the rotational transmission system, and when forming the play mode, the rotating lever is held in a non-meshing position where the intermediate gear does not mesh with the high-speed rotational transmission system. This device is installed between a tape player configured to hold the rotary lever by using the movement of the movable member for setting the play mode, and thereby allows the rotary lever to be held in the non-operational state. It is an object of the present invention to provide a novel tape player that does not require any special means for holding the tape in the engaged position, and that can improve the reliability of preventing malfunctions.

(B. Summary of the Invention) The tape player of the present invention has a mode forming system for forming a play mode using a mode lever that is moved between a play position for forming a play mode and a stop position for forming a stop mode. , a cam gear that moves the mode lever to the play position, and a lock lever that is held in the lock position by an electromagnetic plunger to lock the position of the cam gear in the stop mode and play mode, and is released from the holding when the play mode is established. When the lock lever is released, the lock lever presses the high-speed driving mode rotating lever toward the side opposite to the high-speed rotation transmission system, and this state is held by the mode lever that has been moved to the play position. This makes it possible to reliably hold the rotating lever for high-speed running mode in the non-meshing position, which is necessary when forming the play sword, without using any special means.

(C, Background Art) The reel stand in a tape player is rotated at a relatively low speed in the play mode for recording and playing back, and in the high-speed running mode for fast forwarding and reversing the tape, the reel stand rotates at a speed several times the speed in the play mode. It rotates at several tens of times the speed, and the drive unit for rotating such a reel stand is often provided in one common to the play mode and the high-speed running mode.

For this reason, this type of tape player usually
Two transmission systems are provided between the reel stand and the drive unit, that is, a low-speed rotation transmission system and a high-speed rotation transmission system each using one or more gears, and between these two transmission systems and the drive unit. A transmission line switching means is inserted in the transmission line switching means, and the rotation of the drive section is configured to be selectively transmitted to the low-speed rotation transmission system or the high-speed rotation transmission system via the transmission line switching means.

There are several types of transmission system switching means, but in relatively small tape players, a special drive is used to operate the transmission system switching means by using a so-called friction mechanism. This eliminates the need to use force or means, and - many use a rotating lever for collection.

In other words, the rotary lever that rotatably supports the intermediate gear at its rotary end is rotatable within a certain range. The intermediate gear is supported on the chassis so that it can be moved between an engaged position where it engages with the gear and a non-engaged position where it does not engage with the gear, and the intermediate gear is always engaged with the gear of the output stage of the drive section and rotates with the intermediate gear. An elastic means is provided between the rotating lever and the rotating lever C, so that when the intermediate gear rotation force is applied, the rotating force is applied to the rotating lever C in the same direction as the direction of rotation of the gear in the output stage.
It is often configured to be biased so that the pivot lever moves into a position that engages the intermediate gear with the transmission system.

In addition, when such a rotary lever is used as a transmission path switching means, two are usually provided, one for play mode and one for high-speed driving mode, and when forming play mode, the rotary lever for high-speed driving mode is used. to prevent the movement of the rotary lever for the play mode and hold it in the non-meshing position, and to prevent the movement of the rotary lever for the play mode and hold it in the non-meshing position when forming the high-speed running mode, and to do this. This prevents malfunctions from occurring.

Further, the tape player is necessarily provided with a moving member for forming the play mode, that is, a member for moving the magnetic head and the pinch roller, and the movement of the rotary lever for the play mode is controlled by the moving member. In fact, in this type of tape player, when the moving member comes to the stop mode position, the movement of the play mode rotary lever is blocked, and the moving member stops moving. In many cases, the above-mentioned blocking is released by moving to a play position where a play mode is formed.

(D. Problem to be Solved by the Invention) However, when forming the high-speed running mode, normally no member is moved other than rotating the reel stand, so the high-speed running mode and the stop mode are There is no member whose position changes with the
In any case, it is necessary to provide dedicated means for this purpose. For example, a stroke-type electromagnetic plunger is specially provided, and when the play mode is established, the electromagnetic plunger holds the rotating lever for the high-speed running mode in a non-meshing position, and when the stop mode is established, the holding is released. Or, even when using a change in the position of the movable member to form the play mode, when the movable member moves to the play position, the engagement position side of the high-speed travel mode rotation lever In order to reliably prevent the tape player from moving, a special malfunction prevention mechanism has been installed, and these special measures complicate the structure of the tape player and increase the cost. It has become one.

(E. Means for Solving the Problem) By the way, the mode forming system for forming the play mode is composed of a mode lever that is moved between a play position where the play mode is formed and a stop position where the stop mode is formed. , a cam gear that moves the mode lever to the play position, a lock lever that regulates the position of the cam gear, and an electromagnetic plunger that controls the position of the lock lever. In stop mode and play mode, the lock lever is moved by the electromagnetic plunger. is held in a lock position that locks the position of the cam gear, and the holding is released when the play mode is established.

Therefore, in order to solve the above-described problems, the tape player of the present invention has a play mode forming system that includes the mode lever,
It is composed of a cam gear, a lock lever, an electromagnetic plunger, etc., and when the lock by the 6N plunger is released from the lock lever, the lock lever presses the high-speed driving mode rotation lever toward the side opposite to the high-speed rotation transmission system,
This state is maintained by the mode lever moved to the play position.

Therefore, in the tape player of the present invention, the movement of the members of the play mode formation system can be used to prevent the rotation of the high-speed running mode rotation lever to the engagement position required when forming the play mode. Therefore, there is no need for a special means for the above-mentioned prevention, and the number of parts and assembly man-hours can be reduced accordingly.Moreover, it is not necessary to prevent the rotation of the rotation lever to the engaged position. Since the operation is performed reliably without losing the timing, the reliability of preventing malfunctions can be increased.

(F. Embodiment) Details of the tape player of the present invention will be described below according to the illustrated embodiment.

In the illustrated embodiment, the tape player of the present invention uses a tape cassette called a compact cassette or the like.
This is applied to a tape player with a so-called reverse function.

(a. Overview of tape player) [Figures 1 to 3] 1 is a tape player, and 2 is its outer casing.

2a is the main part of the outer casing 2, and a cassette mounting plate 3 is provided so as to cover the open upper surface of the main part. ) is attached removably. The upper opening of the main portion 2a is opened and closed by a lid portion 2b rotatably connected to the rear end of the main portion 2a.

Note that the lid portion 2b is hinged to the main portion 2a at its rear end.

5 is a mechanical chassis arranged so as to overlap the lower surface of the cassette mounting plate 3; 6 is a head section provided so as to move integrally with the lid section 2b; It is equipped with a magnetic head 7, pinch rollers 8, 8', etc.

9.9' is a capstan, 10.10' is a reel stand, and the capstan 9.9' and reel stand 10.10' are provided so that most of them protrude upward from the cassette mounting plate 3. ing.

Then, on the lower surface 5a of the mechanical chassis 5, two pinch rollers 8.
Two mode forming systems 12 for selectively forming a predetermined mode by pressing either one of the reel stands 10, 10' onto the capstan 9, 9' or rotating one of the reel stands 10, 10'. .12'' and two drive units 1 for driving these mode forming systems 12 and 12' separately.
3.13', etc., and the above two mode forming systems 12.12' are arranged in the left-right direction of the lower surface 5a of the mechanical chassis 5 (the direction to the left in FIG. 1 is the left side, and the direction to the right is is the right side. In addition, the upward direction in the figure is the front side, and the downward direction is the rear side.) .13' are arranged separately, and each of these two mode forming systems 12.12' and a drive section 13.1
3' constitutes a mode switching mechanism 14.

In the following description, the front side of the paper will be referred to as the lower side and the back side of the paper will be referred to as the upper side as viewed in FIG.

(b, capstan, reel stand) [Figures 1 to 4,
7, 12, and 13] 15.15 is a bearing sleeve fixed at a position near both left and right ends of the rear end of the mechanical chassis 5, and a capstan 9.9 is attached to the bearing sleeve 15.15. ' is rotatably supported, and the lower end of the capstan 9.9' is fixed to the center of the flywheel 16.16'.

16a and 16'a are boob portions formed on the lower surface side of the flywheel 16.16'.

Reference numeral 17.17' denotes a rotating shaft that is rotatably supported by the mechanical chassis 5 while vertically penetrating the front portion of the mechanical chassis 5 near both left and right ends.
0.10' is fixed at the center, and a small diameter gear 18.18' (hereinafter referred to as "reel truck gear") is fixed to the lower end thereof, and the reel truck gear 18.18
A large diameter gear 19.19' (hereinafter referred to as the "reel stand large gear") is rotatably supported on the upper side of the reel stand, and the reel stand large gear 19.19' is connected to the rotating shaft 17.17'. It is always in elastic contact with a clutch plate (not shown) fixed to the intermediate portion of the clutch plate.

Therefore, the reel carriages 10, 10' are connected to the reel carriage gear 18.
18' or the reel stand large gear 19, 19' rotates.

In the following explanation, the left capstan 9 is referred to as "N".
The right capstan 9' is called the "R side capstan," and the left reel stand 10 is called the "N side capstan."
The right reel stand 10' is called the "R side reel stand."

(c, head part) [Fig. 2 to 4, Fig. 6, Fig. 12
13] Reference numeral 20 denotes a head chassis, the main part 20a of which has a plate shape long in the left-right direction, and a large notch 20b opening downward is formed in the center of the forehead main part 20a. Further, leg pieces 20c, 20c are provided protruding from both left and right ends of the main portion 20a. The head chassis 20 is coupled to the lid body 2b so as to rotate integrally with the outer casing 2a, and when the lid body 2b comes to the closed position, the main body 20
The plate thickness direction of a is in the front-rear direction.

Reference numeral 21 denotes a head support base, which includes a head support part 21a that is substantially U-shaped and opens upward when viewed from the front and rear directions, and protrusions 2 that protrude in the left and right directions from both left and right sides of the head support part 21a.
1b and 21b, and a head holder 22 holding the magnetic head 7 is fixed to the head support portion 21a.

Reference numerals 22a and 22a designate tape guide portions protruding forward from both left and right sides of the head holder 22, and reference numerals 23 and 23 designate auxiliary tape guides fixed to the front surface of the protrusion portions 21b and 21b of the head support base 21.

The head support base 21, head holder 22, magnetic head 7, and auxiliary tape guides 23 and 23 constitute a head block 24.

25 connects the head block 24 to the head chassis 20
It is a plate spring member that is supported so as to be freely displaceable in the front and back direction, and is long in the left and right direction, and has left and right end portions 25a, 25a.
is fixed to the front surface of the main portion 20a of the head chassis 20 at a position in contact with both left and right ends of the notch 20b, and portions 25b, 25b having a certain length in the left and right direction near both the left and right ends are one of them. The portion is deformed by being curved in the thickness direction, that is, it is a portion that can be deformed including a displacement component in a direction intersecting the thickness direction.

The left and right sides of the head support portion 21a of the head support base 21 are fixed to the front surface of the leaf spring member 25 at a location continuous to the deformations 25b, 25b.

Therefore, when the leaf spring member 25 is pressed from the front and rear directions, its deformations 25b and 25b are deformed, and the parts other than both ends are displaced in the front and rear directions. It is supported by the head chassis 20 so as to be able to move freely over a certain distance.

26.2B' is a pinch roller lever, which is separated from a main lever 27.27' and a slightly longer limiter lever 28.28';
These main levers 27, 27' and limiter levers 28.
28' is supported at one end thereof by support shafts 29 and 29 fixed to both left and right ends of the head chassis '20 so as to be rotatable substantially in the front and back direction within a certain range, and is supported by a limiter (not shown). - Spring-loaded main lever 27.2
While 7' is not pressed relatively rearward, they are coupled so as to rotate together. And the main lever 27,
The pivoting ends of the capstans 9.9' and 27' respectively face the capstans 9.9', on which the pinch rollers 8.8' are rotatably supported.

Incidentally, such a pinch roller lever 26, 26' is a pressed part 2 that forms the rotating end of the limiter lever 28, 28'.
8a, 28'a are rotated forward by being pressed by a pressing pin of a play lever, which will be described later, and thereby the pinch roller 8.8' is pressed against the capstan 9.9' with the magnetic tape 17 in between. Crimp.

(Types of d modes) [Figure i1, Figures 10 to 13] By the way, the board-like modes formed by this tape player 1 include a playback mode, a play mode, and a play mode.
A fast forward mode in which the magnetic tape 11 is run at high speed in the negative direction (hereinafter referred to as "normal direction j"), and a fast forward mode in which the magnetic tape 11 is run in a direction opposite to the normal direction (hereinafter referred to as "reverse direction"). There is a rewind mode in which the magnetic tape 11 is run at high speed, and a stop mode in which the operations in these modes are canceled.The play mode includes a normal play mode in which the magnetic tape 11 is played back by running it in the normal direction, and a play mode in which the magnetic tape 11 is played back in the normal direction. There is a reverse play mode in which playback is performed by running the vehicle in the reverse direction.

When the tape cassette 4 is placed on the cassette mounting plate 3, the reel stand 1 is placed on the tape reel 30°30'.
0 and 10' are engaged separately, and the magnetic tape 11
When the magnetic head 7 and the pinch rollers 8 and 8' are opposed from the rear to the portion facing outside the cassette case, and the play mode is selected, the head block 24 is moved forward and the tape of the magnetic head 7 is The contact surface 7a is brought into contact with the magnetic tape 11, and in the case of a normal braid, the contact surface 7a is rotated clockwise in FIG.
The left pinch roller 8 (hereinafter rN) is attached to the side capstan 9.
"Side pinch roller". ) are pressed together with the magnetic tape 11 in between, so that the magnetic tape 11 is in the normal direction, that is, on the right tape reel 30' (hereinafter referred to as "R reel").
The tape reel 30 (hereinafter referred to as "N") on the left side is pulled out from the
Reel.” ), and the N-side reel stand 10 rotates in the clockwise direction in FIG. 1 (hereinafter referred to as the "tape winding direction")
The reel 30 is rotated clockwise, and in the case of reverse play mode, the right pinch roller 8' (rR The side pinch rollers J) are pressed together with the magnetic tape 11 in between, and the magnetic tape 1
1 is fed in the reverse direction, that is, in the direction in which it is pulled out from the N reel 30 and wound on the R reel 30',
In addition, the R side reel 30' is rotated counterclockwise in FIG. 1 (hereinafter referred to as the "tape winding direction J") to rotate the R reel 30' counterclockwise. Become.

Further, in the fast forward mode, the N side reel stand 10 is rotated at high speed in the tape winding direction, and in the rewind mode, the R side reel stand 10' is rotated at high speed in the tape winding direction.

Incidentally, such selective designation of the mode is performed by pressing a predetermined mode selection button (not shown). One operation button is provided for selecting the play mode, and the normal play mode or reverse play mode is switched between normal play mode and reverse play mode each time the play button is pressed in the play mode. are alternately switched and formed, and when the play button is pressed from a mode other than the play mode, the play mode of the type selected immediately before is formed as automatic fishing. Separate operation buttons are provided for selecting fast forward mode, selecting rewind mode, and selecting stop mode.

The formation of the normal play mode, reverse play mode, fast forward mode, and rewind mode is all performed from the stop mode. Therefore, from a state where a mode other than the stop mode is formed, commands for other operation modes are issued. Whenever -1 is done, a stop mode is established.

The state shown in FIG. 1 is the stop mode, the state shown in FIG. 12 is the normal play mode, the state shown in FIG. 13 is the reverse play mode, and the state shown in FIG. 10 is the fast forward mode, and the state shown in FIG. The state shown in is the rewind mode.

The normal play mode and the fast forward mode are one of the two mode forming systems 12 and 12' (hereinafter referred to as
The reverse play mode and the rewind mode are formed by the other mode forming system 12' (hereinafter referred to as the "second mode forming system"). It looks like this. That is, the operating mode when the magnetic tape 11 is running in the normal direction and the operating mode when the magnetic tape 11 is running in the reverse direction are expressed separately by the two mode forming systems 12 and 12'. It has become.

(e, Drive unit) [Figures 1, 4, ls, 7, 10 to 14] Of the two drive units 13 and 13' described above, the left drive unit 13 (hereinafter referred to as " The first drive section j) is a drive section for driving the first mode forming system 12, and the right drive section 13' (hereinafter referred to as "second drive section") is a drive section for driving the first mode forming system 12. 2
This is a driving section for driving the mode forming system 12'.

These drive units 13 and 13' are connected to the mechanical chassis 5.
Motors 31 and 31 fixed to both left and right ends of the lower surface 5a of
', the flywheel 16, 16' and the drive gear 32.
It consists of 32' etc.

31a, 31'a are tapered rollers 33.33 fixed to the tip of the rotating shaft (not shown) of the motor 31.31'.
' is a ring-shaped friction member attached to the upper surface of the flywheel 16, 16', and the friction member 33, 33'
The outer peripheral surfaces of the tapered rollers 31a and 31'a are always in elastic contact with each other.

34. 34' is a driven boot, with a shaft 35 at its center.
．． 35' is fixed, and the lower end of a substantially cylindrical drive gear 32.32' is fixed coaxially with the shaft 35.35'. Mode forming system 12.12 in the lower surface 5a of the chassis 5
' are rotatably supported individually by bearing sleeves 36 and 36 fixed at positions close to each other from both left and right sides.

Note that the right drive gear 32' (hereinafter referred to as "second drive gear")
Say. ) is the upper end of the left drive gear 32 (hereinafter referred to as “first
``drive gear''. ), and the teeth of the second drive gear 32' are formed at a portion other than the lower end thereof.

37.37' are the pulley parts 16a, 16'a formed on the flywheel 16.16' and the driven pulley 34.34'.
The frame is an endless belt passed between the two.

Therefore, when the motor 31, 31' rotates, the rotation is caused by the rotation of the tapered rollers 31a, 31'a - the flywheel 1.
6.16'-belt 37.37'-driven pulley 34.3
4', and the drive gears 32, 32' are rotated.

Note that the rotation direction of the motor 31 (hereinafter referred to as "first motor") of the first drive unit 13 is a direction in which the flywheel 16 is rotated clockwise when viewed from above; The motor 31' of the drive unit 13' (hereinafter referred to as "second
The direction of rotation of the motor ( ) is the same as the flywheel 16
' is rotated counterclockwise. Therefore,
The first drive gear 32 will be rotated in a clockwise direction and the second drive gear 32' will be rotated in a counterclockwise direction.

(f, reel table rotation system) [Figures 1, 7, 9 to 14] (f-1, high-speed rotation transmission system) [Figures 1, 7, 10
14] 38.38' is a high-speed rotation transmission system that accelerates the rotation of a high-speed intermediate gear (to be described later) rotated by the drive gear 32.32' and transmits it to the reel stands 10, 10''. , each consisting of the reel truck gear 18, 18' and two speed increasing gears.

39.39' is the speed increasing gear of the input stage, 40.40' is the speed increasing gear of the output stage, three speed increasing gears of the input stage, 39' is the reel stand large gear 19 on the lower surface 5a of the mechanical chassis 5. ．．
It is rotatably supported by gear support shafts 41 and 41 vertically installed at positions slightly spaced inwardly from 19', and the output stage speed increasing gears 40 and 40' are connected to two large and small gears that are coaxial with each other.
The two gear parts 40a, 40'a and 40b, 40'b are integrally formed, and are also rotatably supported by a gear support shaft 42.42 vertically installed on the lower surface of the mechanical chassis 5. There is.

And the large gear part 40 of the speed increasing gear 40.40' of the output stage
a, 40'a are meshed with the reel truck gear 18, 18', and the small gear portions 40b, 40'b are manual speed increasing gears 39.18'.
It is meshed with 39'.

(f-2, low speed rotation lever) [Figure 1, Figure 7, Figure 1
2 to 14] Reference numeral 43.43' denotes a low-speed rotary lever for transmitting the rotation of the drive unit 13.13' to the reel stands 10, 10' in the play mode.

44.44' is the main part of the low-speed rotating lever 43.43', which is formed into a plate shape with an abbreviated letter shape, and two cylindrical boss parts 45.45' are vertically disposed at the center thereof. The upper end of the boss portion 45.45' is open to the upper surface of the main portion 44.44'.

Also, a controlled pin 46, 46' is vertically provided at the rear end, which is one end of the main part 44, 44', and a gear support shaft 47, 47' is provided at the other end.
47' is installed vertically.

48. 48' is an intermediate gear, which is integrally formed with large gear parts 48a, 48'a and small gear parts 48b, 48'b, which are coaxial with each other, positioned in this order from below. is rotatably supported by the gear support shafts 47, 47'.

The diameter of the large gear portions 48a, 48'a is the same as that of the drive gear 32.
．． 32'.

And, such a low speed rotating lever 43, 43' is
The bearing sleeve 36.36 is attached to the boss portion 45.45' of the bearing sleeve 36.36.
That is, by inserting the bearing sleeve 36.36 supporting the drive gear 32.32', it is rotatably supported by the bearing sleeve 36.36', and the size of the intermediate gear 4B, 48' is The gear parts 48a and 48'a are the drive gear 3
2. It is engaged with the upper end of 32'.

Therefore, while the motors 31, 31' are rotating, the intermediate gears 48, 48' are constantly rotated.

Note that these low-speed rotating levers 43, 43' are positioned such that the upper ends of their gear support shafts 47, 47' are located in regulation holes 49, 49' formed in the mechanical chassis 5 with some clearance. As a result, the intermediate gear 48, 48' is disposed close to and facing the reel ignition gear 19, 19' from the rear, and is disposed within a certain range so that the intermediate gear 48, 48' is displaced approximately in the front-rear direction. provided so that it can rotate within the
In addition, the reel ignition gear 19, 19' includes a small gear portion 48b.
, 48'b are opposed.

The controlled pins 46, 46' are slidably engaged with the control slots of the play levers described later, and in the stop mode, as shown in FIG.
48'b is held in a non-meshing position slightly rearwardly away from the reel ignition gear 19, 19' and the play mode is formed, as shown in FIGS. 12 and 13, the small gear portion 48b , 48'b are moved to the meshing position where they mesh with the reel ignition gear 19, 19'.

Therefore, the drive gear 32.32' and the intermediate gear 48.48
' and the reel ignition gear 19.19' constitute a reduction gear system, so when the intermediate gear 48.48' is meshed with the reel ignition gear 19.19', the rotation of the drive unit 13.13' is decelerated. and is transmitted to the reel stands 10, 10'.

Incidentally, since the direction of rotation of the gears 31 and 31' is the direction described above, the left intermediate gear 48 (hereinafter referred to as "
The right intermediate gear 48' (hereinafter referred to as the "second intermediate gear") is rotated counterclockwise.
Say. ) is rotated in a clockwise direction.

(f-3, high-speed rotation lever, formation of high-speed driving mode)
[Figures 1, 7, 9 to 14] (f-3-a, high-speed rotation lever) 50 transfers the rotation of the first drive unit 13 to the high-speed rotation transmission system in the fast forward mode. The high-speed rotary lever 50' for transmitting data to the second drive unit in the rewind mode! This is a high-speed rotating lever for transmitting the rotation of rotation 3' to the high-speed rotation transmission system 38'.

These high-speed rotating levers 50, 50' have a main part 51.51' whose almost entire length is plate-shaped in the front-rear direction, and a cylindrical cylinder extending downward from the center of the main part 51.51'. A boss part 52, 52' having a shape, and a front end part of the opposite side edges of the main part 51, 51' that protrude slightly toward the opposite side are vertically disposed downward. Regulation bin 53.53' and main part 51.5
Pressed wall 54.54 hanging from the rear end of the upper surface of 1'
' are integrally formed, and the pressed N54.54'
are formed in a substantially dogleg shape that is symmetrical to each other when viewed from above.

ν In addition, the front end 51a151'a (see Fig. 7) of the main part 51.51' is slightly thicker than the remaining part and protrudes downward. The upper part of the shaft 55.55' is fixed, and the intermediate gear 56.56' is rotatably supported at the lower part of the gear support shaft 55.55'.

The intermediate gear 56.56' is the drive gear 32.32.
Large gear portions 56a, 56'a having approximately the same diameter as `` and small gear portions 56b, 56''b having a smaller diameter are integrally formed in this order from below, coaxially located, and the lower surface thereof. recessed portion 56c156'c (see Figures 9 to 11)
are formed, and a coil spring 58.58' is compressed between the upper surface of the recesses 56c, 56''c and a spring bearing washer 57.57' that is engaged with the lower end of the gear support shaft 55.55'. As a result, the intermediate gear 56.56' is always in elastic contact with the front end portions 51a, 51'a of the main portion 51.51' by the elastic force of the coil spring 58.58'.

And, such a high speed rotating lever 50.50' is
The low speed rotating lever 43 is attached to the boss portion 52, 52'.
By rotatably inserting the boss portion 45.45' of 43', it is rotatably supported by the bearing sleeve 36.36', and the large gear portion 56 of the intermediate gear 56.56' is rotatably supported by the bearing sleeve 36.36'.
a156'a is always engaged with a substantially middle portion in the height direction of the drive gear 32, 32'.

Therefore, when the drive gear 32, 32' rotates, a rotational force is applied to the high-speed rotation levers 50, 5 in the same direction as the direction of rotation.
It will be biased to 0'.

The upper end of the gear support shaft 55, 55' that protrudes upward from the main part 51, 51' is located within the regulation hole 59, 59' formed in the mechanical chassis 5 with some clearance. , As a result, the high-speed rotation levers 50, 50' have the intermediate gears 56, 56' approaching the speed increasing gears 39, 39' of the input stage of the high-speed rotation transmission system 38, 38' from approximately laterally and diagonally rearward. The intermediate gears 56, 56 are arranged in opposite directions and
' is provided so as to be able to rotate within a certain range so as to be displaced substantially in the left-right direction, and small gear portions 56b, 56''b are opposed to the speed increasing gears 39, 39'.

(f-3-b, Formation of high-speed driving mode) Therefore, when the first motor 31 rotates, the first drive gear 32 rotates clockwise as seen in FIG. When the rotating lever SO (hereinafter referred to as the "first high-speed rotating lever") is biased with rotational force in the clockwise direction, and the second motor 31' rotates, the second drive gear 32' rotates counterclockwise, the right high-speed rotating lever 50' (hereinafter referred to as the "second high-speed rotating lever")
A rotational force is applied in the counterclockwise direction.

Then, the high-speed rotation lever 50 or 50' rotates in the above direction, and the gear support shaft 55 or 55' is rotated in the regulating hole 59 or 59' of the mechanical chassis 5, as shown in FIG. 10 or 11. (hereinafter referred to as the "meshing position")
Say. ), the intermediate gear 56 or 56' meshes with the speed increasing gear 39 or 39' of the input stage, and from this state the intermediate gear 56 or 56' rotates, and the left intermediate gear 5
6 (hereinafter referred to as the "first intermediate gear") is rotated counterclockwise, and the right intermediate gear 56' (hereinafter referred to as the "second intermediate gear") is rotated clockwise. Ru.

Incidentally, when the play mode is established, the rotation of the high-speed rotation lever 50, 50' in the above direction is prevented by the lock lever and play lever, which will be described later, as shown in FIGS. 12 and 13. , the small gear portions 56b, 56''b are held in a non-meshing position spaced apart from the speed increasing gears 39, 39', and in the stop mode, the rotation is no longer blocked.

Therefore, when the first motor 31 rotates from the stop mode, the first high-speed rotation lever 50 is moved to the meshing position, and the first drive gear 32 and the high-speed rotation transmission system 38 are connected to the first rotation transmission system 38. Since it is connected via the intermediate gear 56, the N-side reel stand 10 is rotated at high speed in the tape winding direction. This state is the fast forward mode described above.

Further, when the second motor 31' rotates from the stop mode, the second high-speed rotation lever 50' is moved to the meshing position, and the second drive gear 32' and the high-speed rotation transmission system 38 are moved to the engaged position.
' are connected via the second intermediate gear 56',
The R side thread table 10' is rotated at high speed in the tape winding direction. This state is the rewind mode described above.

(g, mode formation system) (g-1, subchassis, electromagnetic plunger) [Fig.
4, FIG. 7, FIG. 10 to FIG. 14] 60 is a sub-chassis fixed approximately in the center of the rear part of the lower surface 5a of the mechanical chassis 5, and has a substantially rectangular plate shape that is long in the left-right direction when viewed from above. A long hole 61 that is long in the front-rear direction is formed in the approximate center thereof, and a portion 62 rearward from the long hole 61 is slightly lower than the rest of the hole. A support shaft arrangement hole 62a is formed approximately in the center thereof, spring hook holes 62b, 62b are formed at both left and right ends of the front end, and cut grooves 62c, 62c long in the front and back direction are formed at both left and right ends of the rear end. The rear end of 62c is open.

63.63' is an electromagnetic plunger. 64.64 is the base part of electromagnetic plunger 63.63, 65.65 and 6
5.65' is a core magnet made of a permanent magnet, 66.66 and 66'6B' is the core magnet 65.65 and 65'
This is a coil wound around 65'.

The electromagnetic plunger 63, 63' is oriented such that the direction of the magnetic flux of the core magnets 65, 65 and 65'65' is in the front and back direction, and the base portion 64, 64' is located at both left and right ends of the lower surface of the sub plunger 60. Each of the core magnets 65.65 and 65.65' is fixed separately at the offset position, and the front end portions of the core magnets 65.65 and 65.65' slightly protrude from the front edge of the base portion 64.64'.

In addition, when forming and canceling the play mode, only one of these electromagnetic plungers 63, 63' is temporarily energized at a predetermined timing according to the selected mode.
Further, the direction of the current supplied to the coils 66, 66 and 66'56' is such that a magnetic flux is generated in a direction that cancels the magnetic flux of the core magnet 65, 65'.

(g-2, cam gear) [Fig. 1, Fig. 4, Fig. 5, Fig. 7
Figures, Figures 8, 12 to ! Figure 14] 67.67' is a cam gear for moving the play lever described later, and these two cam gears 67.57'
are rotatably supported at the upper and lower parts of a support shaft 68 vertically installed at an intermediate position between the two bearing sleeves 36 and 36 that support the drive gears 32 and 32' in the mechanical chassis 5. has been done.

The cam gears 67 and 67' have the same structure and size, and are supported by the support shaft 68 in opposite directions. Therefore, regarding the description of the shape of these cam gears 67 and 67', the cam gear 67 located on the lower side (hereinafter referred to as the rN side cam gear).
For the upper cam gear 67' (hereinafter referred to as the "rR side cam gear"), each part will be given a reference numeral with an additional symbol r' added to the reference numerals given to similar parts in the N side cam gear 67. The explanation will be omitted by attaching it.

(g-2-a, Structure) 69 is a cylindrical boss portion located so as to pass through the center of the cam gear 67 in the plate thickness direction. Reference numeral 70 indicates a tooth portion forming the outer circumferential portion of the cam gear 67, and 71a and 71b indicate notches or toothless portions of the tooth portion 7o. .) When viewed from above, the two missing tooth portions 71a,
One of the toothless parts 71a (hereinafter referred to as the "first toothless part") of the cam gear 71b is formed so that its intermediate part is located approximately to the left of the center of the cam gear 67, and the other toothless part 7Mb (hereinafter referred to as the "first toothless part") , referred to as “second missing tooth portion”) is the first missing tooth portion 711
They are formed so as to be located slightly apart from each other in the counterclockwise direction as viewed in FIG.

A cam groove 72 is formed to extend endlessly along the outer periphery of the upper surface of the cam gear 67. This cam groove 72 is for controlling the position of a lock lever, which will be described later, and consists of three non-displacement sections 72a, 172b, 72c whose distances from the center of the cam gear 67 are constant, and whose distances from the center increase as they go clockwise. is separated from two displacement sections 72d and 72e and two stopper surfaces 72f and 72g that extend on a straight line so as to gradually become longer. When viewed with the cam gear 67 at the initial position, there is one non-displacement section 72a (hereinafter referred to as "first non-displacement section").
One end in the counterclockwise direction is located diagonally rearward to the left of the center of the cam gear 67, and the other end is located diagonally to the front right of the center, and one displacement section 72 continues from this other end.
d (hereinafter referred to as "first displacement section j") extends to a position approximately to the right of the center, and furthermore, a second displacement section 72d continues to the clockwise end of the first displacement section 72d. No-displacement section 7
2b (hereinafter referred to as "second non-displacement section") extends to a position substantially directly behind the center of the cam gear, and the clockwise end of this second non-displacement section 2b is connected to the cam gear 67. Therefore, a stopper surface 72f (hereinafter referred to as "play stopper surface") facing counterclockwise is formed at this portion. Then, another displacement section 72e (hereinafter referred to as "second displacement section") continues from the clockwise end of the second non-displacement section 72b until it reaches a point slightly to the left. Another non-displacement section 72c (hereinafter referred to as "third non-displacement section") extends to the left end of the second displacement section 72e.
) extends, and the clockwise end of the non-displacement section 72c of 's3 is bent toward the center of the cam gear 67, so that it is continuous with one end of the first non-displacement section 72a. Therefore, there is a stopper surface 72g facing counterclockwise in this part (hereinafter referred to as "stopper surface at the time of stop").
) is formed.

Note that the second non-displacement section 72b and the third non-displacement section 72c
are made equal in distance from the center.

Reference numeral 73 denotes a cam protrusion protruding from the upper surface of the cam gear 67, and this cam protrusion 73 is for controlling the position of a play lever, which will be described later.

The cam protrusion 73 also has a pressed portion 73a extending a short distance toward the left from the front end of the peripheral wall of the boss portion 69 when viewed from below with the cam gear 67 oriented in the initial position. , extends in an arc shape in a clockwise direction continuously from the right end of the pressed portion 73a, and as it goes further, the cam gear 6
7 and whose tip extends to a position substantially directly behind the center, and between the clockwise end of the pressing portion 73b and the left end of the pressed portion 73a. The distance from the center of the cam gear 67 is constant between the holding portion 73c and the continuous holding portion 73c.

(g-2-b, Support and Rotation) Such a cam gear 67.67' has a boss portion 69.
The support shaft 68 is inserted into the support shaft 69' so that it is rotatably supported by the support shaft 68.
' and the cam protrusion 73' are arranged to face downward.

The teeth 70 of the N-side cam gear 67 are located at a height corresponding to the lower end of the first drive gear 32, and are positioned such that their pitch circle circumscribes the pitch circle of the drive gear 32. The tooth portion 70' of the side cam gear 67' is located at a height corresponding to the upper end of the second drive gear 32', and its pitch circle circumscribes the pitch circle of the drive gear 32'.

Therefore, the N side cam gear 67 has missing teeth 71a and 71b.
while facing the first drive gear 32, the drive gear 3
2, but at other times the teeth 70 mesh with the drive gear 32, and this meshing causes the first motor 31
If it is done in a rotating state, it will be rotated counterclockwise. Similarly, the R side cam gear 67'
The toothless parts 71'a and 71'b are the second drive gear 32.
While the teeth 70' are facing the drive gear 32', the teeth 70' do not mesh with the drive gear 32'.
If the second motor 31' is engaged while the second motor 31' is rotating, the motor 31' will be rotated clockwise.

Incidentally, the rotation direction of the cam gears 67, 67' is always the above-mentioned direction.

(g-3, lock lever) [Fig. 1, Fig. 4, Fig. 5,
The core 4.74' shown in FIGS. 7, 10 to 14 is a lock lever for preventing and releasing the rotation of the cam gear 67,67'.

(g-3-a, structure) The main parts of the lock levers 74, 74' are approximately V-shaped when viewed from above, and there is a cylindrical part located at the bent part so as to pass through this part in the thickness direction. A boss portion 75, 75' is provided, and one arm 76, 76' extending substantially from the bent portion in the left-right direction is formed such that the half portion on the side opposite to the bent portion is located at a higher position than the remaining portion. Attractive pieces 77, 77' made of a magnetic metal material are supported on the lower surface of this high portion. Furthermore, a cam bin 79.79' is inserted from the tip of the other arm 78.78' extending diagonally toward the front and side from the bent portion.
is protruding from the left lock lever 74 (hereinafter referred to as "
The cam pin 79 of the N-side lock lever (hereinafter referred to as "N side lock lever") protrudes downward, and the right lock lever 74' (hereinafter referred to as "
"N side lock lever.")'s cam bin 79' projects upward.

Incidentally, small pressing protrusions 76a, 76''a are protrudingly provided on the front side surface of the rotating end of one arm 76, 76'.

80.80' is the cam gear 67 of the mechanical chassis 5.
．． This is a lever support bin that is vertically installed at a position immediately behind 67', and is spaced apart from each other by 1 yen 4111t in the left and right direction.

The lock levers 74, 74' have boss portions 75.
By inserting the lever support bins 80 and 80' into the lever support bins 80 and 75', the lever support bins 80 and 80 are rotatably supported, and the lower end of the cam bin 79 of the N side lock lever 74 is connected to the N side cam gear 67. is slidably engaged with the cam i@72 of the RITIIJ lock lever 7.
The upper end of the cam pin 79' of the R-side cam gear 67' is slidably engaged with the cam groove 72' of the R-side cam gear 67', so that the attracting piece 77.77' of the cam pin 79' of the electromagnetic plunger 63.63' is engaged with the core magnet 65.4' of the electromagnetic plunger 63. 65.65' and 65'' are positioned facing each other from approximately the front.

81.81' is a torsion spring whose coil part 8
fa, 81'a is the boss portion 7 of the lock levers 74, 74'
5.75', and the tips of the longer arms 81b, 81'b are locked to the opening edges of the spring hook holes 62b, 62b formed in the sub-chassis 60, The ends of the shorter arms 81c and 81c are the lock levers 7
The slits 76b and 76'b formed in the stepped portion of one arm 76 and 76' of the arms 4 and 74' are in elastic contact with the front surfaces thereof.

Therefore, due to the elastic force of the torsion springs 81 and 81', as seen in FIG.
4' is always applied with rotational force in the counterclockwise direction, and its suction piece 77.77' is attached to the electromagnetic plunger 63.6.
3' core magnet 65.65.65" When it comes into contact with 65', the attraction piece 77.77' moves the core magnet 65.65.
65' By being attracted to 65', the cam pins 79, 79' are held in that position against the rotational force, that is, in the suction position shown in FIG.
67' cam groove 72.72' stopper surface 72f, 72
'f, 72g, and 72'g are located on the rotation locus.

Note that when the lock levers 74, 74' are in the suction position, their pressing protrusions 76a, 76'a are approximately behind the rear end of the pressed wall 54, 54' of the high-speed rotating lever 50, 50'. It faces diagonally from the side.

(g-3-b, Preventing rotation of cam gear and releasing it) In the stop mode and play mode, the play lever described later causes the N side cam gear 67 to move counterclockwise via the cam protrusion 73, 73'. The rotational force is applied to the R side cam gear 67', and the rotational force in the clockwise direction is applied to the R side cam gear 67'.

In the stop mode, the lock lever 74,
74' is in the suction position, and cam gear 67.6
7' is at the initial position, and its cam groove 72.72'
When stopped, the stopper surfaces 72g, 72'g are in contact with the cam pins 79, 79' of the lock levers 74, 74', thereby preventing the cam gears 67, 67' from rotating in the above direction.

In this state, the cam gears 67 and 67' are as shown in Figures 1 and 5.
As shown in the figure, the first toothless portions 71a, 71'a are opposed to the drive gear 32, 32', and therefore the drive gear 3
Even if 2.32' rotates, cam gear 67.67' is not rotated.

Then, when the electromagnetic plungers 63, 63' are energized from this state (this energization is selectively applied to only one of the electromagnetic plungers), the core magnet 65, 65' is energized.
．． 65"65' is canceled, the lock levers 74, 74' are rotated by the rotational force of the torsion springs 81, 81' biased thereto, and the cam pins 79, 79' are moved into the cam groove 72. .72' is brought into contact with the inner peripheral surface of the first non-displacement section 72a, 72'a.

This causes the cam bin 79.79' to move to the stopper surface 72g.
, 72'g, the rotation of the cam gears 67, 67' is no longer blocked.

At the same time, the cam gears 67, 67' rotate slightly in the aforementioned direction, and their teeth 70, 70' engage the drive gears 32, 32.
’ is meshed with.

When the cam gears 67, 67 rotate in the aforementioned direction from this state, the cam pins 79, 79' first move into the cam grooves 72, 79'.
The inner peripheral surfaces of the first non-displacement sections 72a, 72''a of the cam bin 79.
79' is pushed away from the center of the cam gears 67 and 67', and the N-side lock lever 74 is rotated counterclockwise and the R-side lock lever 74' is rotated clockwise.

Then, a second non-displacement section 72 is provided at the cam bin 79,79'.
At approximately the same time that the inner surfaces of b and 72'b are brought into sliding contact, the lock levers 74 and 74' are returned to the suction position (see FIG. 14(B)), and this state is maintained by the electromagnetic plungers 63 and 63'. From this state, the cam gear 67.67'
When the cam groove 72. rotates a predetermined rotation angle, the cam groove 72.
During play, the stopper surfaces 72f, 72''f of 72' come into contact with the cam pin 79.79' (see FIGS. 12 and 13), thereby again preventing the rotation of the cam gear 67.67'.

The position of the cam gear 67, 67' in this state is the position when play mode formation is completed (hereinafter referred to as the "play position").
), and in this state, as shown in FIGS. 12 and 13, the cam gears 67, 67' have their second toothless portions 71b, 71'b at +I! It faces the A moving gear 32, 32'.

Then, when the electromagnetic plunger 63, 63' is energized from this state, the lock levers 74, 74' rotate, so that the cam pin 79, 79' comes off the stopper surface 72f 572'f during play, and the cam gear 67.
67 is no longer blocked from rotating.

At the same time, the cam gears 67 and 67' are rotated by the biasing force of the play lever, which will be described later, and their teeth 70 and 7 are rotated.
0' is meshed with drive gear 32, 32'.

When the cam gears 67 and 67' rotate from this state, the cam pins 79 and 79' are now moved to the second position of the cam grooves 72 and 72'.
The inner surfaces of the displacement sections 72e, 72''e are brought into sliding contact, and the cam pin 79.79' is pushed in a direction away from the center of the cam gear 67.67', whereby the N-side lock lever
74 is rotated counterclockwise and the R side lock lever 74' is rotated clockwise, and when the inner peripheral surfaces of the third non-displacement sections 72c and 72'c contact the cam bin 79, 79', the lock lever 74 is rotated counterclockwise. , 74' are returned to the adsorption position, and this state is maintained by the electromagnetic plungers 63, 63',
Immediately thereafter, the stopper surface 72g172'g of the cam groove 72.72' comes into contact with the cam pin 79.79', and the rotation of the cam gear 67.67' is prevented.

Therefore, the cam gear 67, 67' has its stopper surface 72
Cam pin 79.79 of lock lever 74, 74' with f, 72'f or 72g, 72'g in the suction position
Rotation is prevented by coming into contact with the electromagnetic plungers 63, 63', and this inhibition is released when the electromagnetic plungers 63, 63' are energized and the lock levers 74, 74' are removed from the adsorption position.

(g-4, play lever) [Figures 1, 3 to 7, and 10 to 14] 82 and 82' are play levers. When forming the play mode, these play levers 82.82' are mainly operated by the head block 24, the pinch roller 8.8'
and low-speed rotation levers 43, 43', and are arranged approximately in the center of the lower surface 5a of the mechanical chassis 5 in the left-right direction so as to overlap each other.

(g-4-a, structure) The play lever 82.82' has a long plate shape in the front and back direction,
A central portion 83.83' having approximately one third of the length is formed wider than the remaining portion, and this wide central portion 83.
．． 83' left edge 83a, 83''a and right edge 83b,
83'b is formed so that at least its front part extends straight in the front-rear direction, and the width of the central part 83.83' is such that it moves both of the two high-speed rotating levers 50, 50' to the meshing position. These regulation bins 5 in the state
3 and 53'.

From this wide central part 83.83' to a slightly rear part, there is a large opening 84.84 which is long in the front and back direction.
' are formed, and guide elongated holes 85.85' and guide grooves 86.86' are formed at the front and rear ends, extending along the front-rear direction.
are formed separately.

The approximately central part of the left edge of the lower play lever 82 (hereinafter referred to as "N side play lever") protrudes slightly from the rest of the part, and the left low-speed rotation described above is applied to this part. A control elongated hole 87 is formed to control the position of the lever 43 (hereinafter referred to as "N side low speed rotation lever"), and the control elongated hole 87 has a front end portion 87a (hereinafter referred to as "lock portion"). ) is the controlled bin 4 of the low speed rotation lever 43.
The remaining portion 87b (hereinafter referred to as the "pressing portion") is formed to extend toward the left side of the rear document. Further, a small spring abutment 88 projects downward from the rear end of the left edge, and a relatively long arm 89 projects horizontally to the left from a position slightly forward of the spring abutment 88. ing.

In addition, similarly to these, the approximately central part of the right edge of the upper play lever 82' (hereinafter referred to as "R side play lever") protrudes slightly from the rest of the part, and this part is attached to the right side low speed A control elongated hole 87' is formed to control the position of the system rotation lever 43' (hereinafter referred to as the "rR side low speed system rotation lever").
'a (hereinafter referred to as the "lock part") extends in the front-rear direction and has approximately the same width as the outer diameter of the controlled bin 46' of the low-speed rotating lever 43', and the remaining part 87'b (hereinafter referred to as "pressing part J") is formed so as to extend toward the right side of the rear document.Furthermore, a spring abutment part 88' projects downward from the rear end of this right side edge. An arm 89' projects horizontally to the right from a position slightly forward of the spring abutting portion 88'.

90.90' is a press bottle erected upward from the tip of the above l1589.89', and 91.91' is formed to stand up from the front end-side edge of the play lever 82.82'. A switch suppressing member 92.92' is attached to the protruding piece 91.91'.

The front edge 84a of the opening 84 of the N-side play lever 82 is offset toward the left end, and the front edge 84'a of the opening 84' of the N-side play lever 82 is offset toward the right end. The front edges 84a, 84'a press against the cam ridges 73, 73' of the cam gear 67, 67'. Alternatively, it is a cam edge that is pressed by it.

In addition, the rear edges 84b, 84'b of the frontage 84.84'
is a pressing edge that presses a head extrusion lever, which will be described later.

(g-4-b, support for mechanical chassis, etc.) 93 and 94
Reference numerals denote lever support bins, which are vertically installed downward from a position near the front end and a rear end of the approximately central portion of the mechanical chassis 5 in the left-right direction.

The play levers 82, 82' are positioned so as to overlap each other, and the guide elongated holes 85, 85' and the guide grooves 8
The lever support pins 93 and 94 are slidably engaged with the levers 6 and 86', so that they are supported so as to be movable back and forth within a certain range.

Further, a coil portion 95a of a return spring 95 in the form of a torsion spring is fitted onto the lower part of the lever support bin 94 on the rear side, and the tips of its two arms 95b, 95b are connected to the play lever 82, 82'. The spring abutting portions 88 and 88' are individually elastically contacted from the front.

Therefore, due to the elastic force of the return spring 95, both of the two play levers 82, 82' are always biased with a backward moving force.

Note that the upper ends 90a and 90'a of the press bottles 90 and 90' are projected upwardly from the mechanical chassis 5 through kerfs 96 and 96 formed at the rear end of the mechanical chassis 5, and are connected to the pinch roller lever described above. 26, 26', and the pressed parts 28a and 28'a of the limiter levers 28, 28', respectively, are closely opposed from the rear, so that when the N-side play lever 82 moves forward, the pressing When the bottle 90 presses the pressed portion 28a and rotates the left pinch roller lever 26 forward, and the N-side play lever 82'' moves forward, the pressing bottle 90'' is pressed against the pressed portion 28a. By pressing the pressing portion 28', the right pinch roller lever 26' is rotated forward.

The controlled pin 46 of the N-side low-speed rotating lever 43 is slidably engaged with the control elongated hole 87 of the N-side play lever 82, and the control elongated hole 87' of the N-side play lever 82' A controlled pin 46' of the R side low-speed rotation lever 43' is slidably engaged.

Note that these play levers 82, 82' have their central portions 83
．． The center in the width direction of 83' is the cam gear 67.67'
The central part 83.83' of each play lever 82.82' is located at approximately the same height as the lower end of the regulation bin 53.53' of the high-speed rotary lever 50.50'. The play lever 8
2.82' is supported by the lever support bin 93.94, the cam protrusion 73 of the N-side cam gear 67 is positioned within the opening 84 of the N-side play lever 82, as shown in FIG.
The cam protrusion 73' of the R side cam gear 67' is located within the opening 84' of the N side play lever 82'.

(g-5, Move the play lever!!+) As mentioned above, the cam gears 67 and 67' are prevented from rotating by the lock levers 74 and 74' when they are at the initial position, and in this state, the cam gears 67 and 67' are prevented from rotating. 67.
The cam protrusion 73.73' of 67' has its pressed portion 73a,
73'a faces forward, the pressed portion 73a of the N-side cam gear 67 is located to the left of the center of the cam gear 67, and the pressed portion 73'a of the R-side cam gear 67' is located on the left side of the center of the cam gear 67. It is located to the right of the center of

Therefore, in this state, the left end of the cam edge 84a of the N-side play lever 82 comes into elastic contact with the pressed portion 73a of the cam protrusion 73 from the front as shown in FIG. 1, and the cam of the R-side play lever 82' As shown in FIG. 5, the right end portion of the edge 84'a is in elastic contact with the suppressed portion 73'a of the cam protrusion 73' from the front, thereby applying rotational force to the cam gear 67, 67'. , and in this state, the lock lever 74,
74'.

In this state, the play lever 82, 82' is at a position where the upper ends 90a, 90'a of the pressing pin 90, 90' are not pressing the pinch roller lever 26, 26'.
That is, as shown in FIG. 3, the pressed portion 28a of the pinch roller lever 26.26' is at the position where the pinch roller 8.8' is farthest from the capstan 9.9';
The pressure bottles 90, 90' have reached the stop position in which they are in light contact with the pressure bottles 28''a.

(g-5-a, Initial Movement) Therefore, when the rotation of the cam gear 67, 67' by the lock levers 74, 74' is released from this state, the play lever 82, 82' moves back slightly. That is, the play lever 82.82' moves rearward while rotating the cam gear 67.67', and the movement is caused by the cam edges 84a, 8
4'a is the pressed portion 73a173 of the cam protrusion 73.73'
'a and the pressing parts 73b, 73'b contact each other in a continuous area (see Figure (A), $14), and in this state, the teeth 70, 7 of the cam gear 67, 67'
0'', the portions of the first toothless portions 71a, 71'a that are continuous with the ends of the long lengths 2 on the side of the toothless portions 71b, 71'b are engaged with the drive gears 32, 32'.

(g-5-b, forward movement) Then, when the cam gear 67.67' rotates from this state (this rotation is performed by the drive gear 32.32'), the pressing portion 73b of the cam/projection 73.73',73'
b presses the cam edges 84a, 84'a forward, so the play lever 82.82' is moved forward, and such forward movement is caused by the movement of that one of the cam protrusions 73.73'. One end of the part with the longest distance from the center of rotation, i.e.
This is done until the position where the pressing parts 73b, 73'b and the holding parts 73c, 73'c are continuous comes into contact with the cam edge 84a584'a, and from this state, the holding parts 73c, 73'c That is, since the portion having a constant distance from the center of rotation contacts the cam edges 84a, 84'a, the play levers 82, 82' are held at the position when the forward movement is finished during this time. .

Further, when the cam gears 6f and 67' reach the play position described above, the portion of the cam protrusion 73 of the N-side cam gear 67 where the holding portion 73c and the pressed portion 73a are continuous becomes the 12th position.
As shown in the figure, it is located slightly to the left of the position in front of the center of rotation of the cam gear 67, and the holding portion 73'c of the cam protrusion 73' of the R side cam gear 67' is As shown in FIG. 13, the point where the portion 73'a continues is located slightly to the right from the position in front of the center of rotation of the cam gear 67', and the cam The edges 84a and 84'a are in contact, and therefore, in this state, a counterclockwise rotational force is applied to the N-side cam gear 67, and a clockwise rotational force is applied to the R-side cam gear 67'. , such a state is the lock lever 74, 74
' held by '.

Note that between the time when the forward movement of the play lever 82, 82' is completed and the time when the above state is achieved, the position where the cam protrusion 73, 73' contacts the cam edges 84a, 84'a slightly changes in the front-back direction. As the play levers 82 and 82' are displaced rearward, they are also moved back slightly to their original positions.
That is, it is stopped at the position shown in FIGS. 12 and 13 (hereinafter referred to as "play position").

(g-5-c, backward) When the rotation of the cam gear 67.67' by the lock levers 74, 74' is released from this state, the play lever 82.82' moves the cam gear 67.67'
This movement is done by cam gear 6.
7.67' stops when it reaches its initial position, which causes the play lever 82.82' to return to its stop position.

Therefore, the play lever 82, 82' is connected to the cam gear 67.
During one rotation of 67', it is moved back and forth between the stop position and the play position.

(h, head push lever) [Figures 1, 3 to 7, and 12 to 14] 97 is a head push lever, and the head block 2
It is directly responsible for the forward pressing work of step 4.

The head extrusion lever 97 includes a pressing portion 98 which is substantially U-shaped and opens upward when viewed from the rear, an intermediate portion 99 extending horizontally from the lower edge of the pressing portion 98 toward the front, and the intermediate portion. The pressed portion 99 is integrally formed with a pressed portion 100 extending vertically from the front end thereof.
8a.

A small stopper protrusion 99a is formed in a protruding shape toward the front at a position near the front end of the intermediate portion 99, and a kite elongated hole is formed in the rear of the intermediate portion 99. 99b is formed, and the guided elongated hole 99
The rear end of b opens at the lower end of the pressing part 98.

Reference numeral 101 denotes a guide portion formed at the rear end of the mechanical chassis 5 at the position where the lever support bin 94 is erected. It is formed in the shape of a protruding piece that protrudes towards the end.

102 is a guide elongated hole formed in the mechanical chassis 5 at a position close to the lever support bin 94 from the front.

The head pushing lever 97 has a rear part of the intermediate part 99 located between the mechanical chassis 5 and the lower part 62 of the sub-chassis 60, and a front part of the intermediate part 99 which is a long hole formed in the sub-chassis 60. 61, the guide portion 101 is slidably engaged with the rear end of the guided elongated hole 99b, and the stopper protrusion 99a
is slidably engaged with the guide slot 102,
Thereby, it is supported at the center of the rear end of the lower surface of the mechanical chassis 5 so as to be movable back and forth within a certain range.

Further, pressing protrusions 98a, 98a formed on both left and right ends of the pressing portion 98 are opposed from behind at positions near both left and right ends of the head support base 21 with the leaf spring member 25 in between, and The lower end of the section 100 is connected to the play lever 8.
2.82' is positioned so as to face the pressing edges 84b, 84''b from the front.

The head extrusion lever 97 then presses the pressed portion 100.
In the state where is not pressed from behind, the pressing protrusion 98a as shown in FIG.

98a, the leaf spring member 25 is in light contact with the stopper protrusion 99a, the stopper protrusion 99a is in the standby position in contact with the rear end edge of the guide elongated hole 102, and the play levers 82, 82' are in the stop position. Then, the pressure ItiB4b, 84
'b is located a little further back than the pressed portion 100 of the head pushing lever 97.

Then, the play lever 82, 82' advances and the pressing edges 84b, 84'b abut against the pressed portion 100 of the head extrusion lever 97, and then the head extrusion lever 97
is moved forward, and when the head push lever 97 moves forward, the pressing protrusions 98a, 98a are moved forward to the head block 2.
4 toward the front against the elastic force of the leaf spring member 25, thereby moving the head block 24 forward as shown in FIGS. 12 and 13.
2.82' retreats, the head push lever 97 is returned to the standby position together with the head block 24 by the elastic force of the leaf spring member 25.

(i, play sword formation movement, etc.) [:341, 3rd
Figures to Figures 5] Therefore, the formation of the normal play mode and reverse play mode, the locking of the high-speed rotary levers 50, 50' in the non-meshing position, and the release of the play mode when these modes are formed are as follows. It is done like this.

(1-1, Stop mode) [Figures 1, 3 to 5
[Figure] As described above, in the stop mode, the lock levers 74, 74' are held at the suction position, and the cam gears 67, 67' are held at the initial position, and thereby the play levers 82, 82' are held at the stop position. , the head push lever 97 is in the standby position, and therefore the magnetic head 7
The pinch rollers 8.8' are waited at a position slightly rearwardly away from the magnetic tape 11, and the pinch rollers 8.8' are both connected to the capstan 9.9.
' is not crimped.

In this state, as shown in FIG.
' lock part 87a.

87'a, and the controlled bin 46.46'
The movement of the low-speed rotary levers 43, 43' is thereby held in the non-meshing position.

In addition, in this state, the middle part 8 of the play lever 82, 82'
3. Left and right side edges 83a, 83'a and 83b of 83',
As shown in FIG. 1, the front end of 83'b is located close to the regulating pin 53.53' of the high-speed rotating lever 50.50'. It is off the rotation locus, therefore, the high-speed rotation lever 50.50
” is in a state where it does not prevent its movement.

The above state is the stop mode.

Incidentally, when a fast forward mode formation command is issued from such a stop mode, the first motor 31 rotates, and as a result,
The first high-speed rotating lever 50 is moved to the meshing position as described above, and its intermediate gear 56 is connected to the high-speed rotation transmission system 38 for the N-side reel stand 10 to move the N-side reel stand 10 at high speed. This causes the tape to rotate in the tape winding direction (first
(See figure 0). Further, when a rewinding mode formation command is issued from the stop mode, the second motor 31' rotates, thereby moving the second high-speed rotation lever 50' to the meshing position and shifting the intermediate gear 56. ' is connected to the high-speed rotation transmission system for the R-side thread table 10' to rotate the R-side thread table 10' at high speed in the tape winding direction (see FIG. 11).

(i-2, Formation of normal play mode, etc.) [Fig. 12, Fig. 14] (i-2-a, Mode formation) Normal play mode mainly consists of the first mode formation system 12 and the drive section '41. 13.

When a normal play mode formation command is issued from the stop mode, the left electromagnetic plunger 63 is energized and the first motor 31 is rotated.

Therefore, as the first drive gear 32 is rotated, the N-side lock lever 74 is rotated clockwise by the elastic force of the torsion spring 81, and the cam pin 79 is rotated to the stop surface 72g of the N-side cam gear 67. Since it is removed from
The prevention of rotation of the cam gear 67 is released, and as a result, the N-side play lever 82 moves slightly backward from the stop position, and the cam gear 67 rotates counterclockwise to rotate its teeth 70. Of these, the portion that continues to the clockwise side end of the first toothless portion 71a is the first drive gear 32.
It meshes with.

This state is the state shown in FIG. 14(A).

From this state, the cam gear 67 is connected to the first drive gear 32&:
As a result, the play lever 82 is moved forward, and when this movement is completed to a certain extent,
That is, when the pressing force fi84b comes into contact with the pressed portion 100 of the head ejecting lever 97, the head ejecting lever 97 is pushed out from there when it reaches a position approximately halfway between the position at which it was first retreated and the play position. While pressing and moving it forward, at a slightly earlier timing, the right edge of the pressing part 87b of the control long hole 87 directs the controlled bin 46 of the N-side low-speed rotary lever 43 approximately to the left. By pressing, the low speed rotation lever 43 is rotated clockwise, and the pressing pin 90 presses the limiter lever 28 of the left pinch roller lever 26 forward. The head block 24 moves forward, and the pinch roller lever 26 is rotated forward.

When the cam gear 67 comes to the play position, the play stopper surface 72f comes into contact with the cam pin 79 of the lock lever 74 which has been returned to the suction position as described above, and the second toothless portion 71b is brought into contact with the drive gear. Facing 32,
As a result, the cam gear 67 is prevented from rotating at the play position, and the play lever 82 is held at the play position.

During this time, the magnetic head 7 comes into contact with the magnetic tape 11,
In addition, the N-side pinch roller 8 is pressed to the N-side capstan 9 with the magnetic tape 11 interposed therebetween, and the intermediate gear 48 of the N-side low-speed rotary lever 43 is connected to the reel ignition gear 19 of the N-side reel stand 10. are engaged.

This state is the normal play mode shown in FIG.

When the play lever 82 reaches the play position in front of the sperm, its switch pressing member presses the N side trigger switch 103 (see FIG. 1) supported by a circuit board (not shown), and this switch 103 A predetermined operation of the control circuit and the regeneration circuit is started using the on signal output from the control circuit as a trigger.

(i-2-b, Locking of the first high-speed rotation lever) As described above, when the normal play mode is formed, the first drive gear 32 rotates, so this rotation causes the first drive gear 32 to rotate. Although a rotational force is applied to the high-speed rotary lever 50 toward the meshing position, movement of the high-speed rotary lever 50 toward the meshing position is prevented from the beginning of the normal play mode forming operation.

That is, when the electromagnetic plunger 63 is energized from the stop mode, the N-side lock lever 74 rotates clockwise, so that the pressing protrusion 7 provided on one arm 76 of the N-side lock lever 74 rotates clockwise.
6a, as shown in FIG. 14(A), presses the rear part of the pressed wall 54 of the first high-speed rotary lever 50 diagonally forward to the right, thereby causing the high-speed rotary lever to 50 is moved to a non-meshing position, whatever position it was previously in within its rotational range. Immediately after this, the play lever 82 starts moving forward, so the front end of its left side 1i83a comes into contact with the right side of the restriction pin 53 of the high-speed rotary lever 50, which has been moved to the non-meshing position as described above. It is positioned so as to be in contact with the regulation bin 53, thereby preventing the high-speed rotation lever 50 from rotating in the clockwise direction.

Note that the lock lever 74 is returned to the suction position before the play lever 82 reaches the play position, but the timing of its return is after the left edge 83a of the play lever 82 comes into contact with the regulation pin 53. High speed rotating lever 50
will be completely prevented from moving to the engaged position.

Thus, the N-side high-speed rotation lever 50 is held in the non-meshing position when the normal play mode is established, and therefore, the intermediate gear 56 rotates in the air in the normal play mode.

Incidentally, such positional restriction on the high-speed rotating lever 50 is canceled when the play lever 82 returns to the stop position.

(i-2-c, Cancellation of Normal Play Mode) When a command is issued to cancel the normal play mode formed in this way, the left NMi plunger 63 is energized again.

Therefore, the lock lever 74 rotates clockwise,
Since the prevention of rotation of the cam gear 67 is released, the play lever 82 moves rearward and rotates the cam gear 67 in the counterclockwise direction, thereby causing the second missing tooth portion 71 b of the tooth portion 70 of the cam gear 67 to rotate. The part of the cam gear 67 that continues to the clockwise side end is engaged with the drive gear 32, and from this state the cam gear 67 is rotated by the drive gear 32, and when it returns to the stopper position, the stopper surface 72
g comes into contact with the cam pin 79 of the lock lever 74, which has been returned to its suction position, and its first toothless portion 71a is in the first position.
The drive gear 32 faces the drive gear 32, thereby stopping the drive gear 32 at the stop position.

As the play lever 82 is returned to the stop position, the pressure on the pinch roller lever 26 is released and the pinch roller 8 is released from being pressed against the capstan 9, and the head ejection lever 97 is returned to the standby position. When the head block 24 retreats with respect to the magnetic tape 11 and the play lever 82 returns to the stop position, the left edge of the pressing portion 87b of the control elongated hole 87 contacts the controlled bin of the N-side low-speed rotary lever 43. 46 toward the right side, thereby returning the low-speed rotary lever 43 to the non-meshing position.

(i-3, Formation of reverse play mode, etc.) [Fig. 13] The reverse play mode is mainly formed by the second mode forming system 12' and the second drive section 13', and its forming operation and canceling operation are The forming operation and canceling operation of the normal play mode described above are performed in the same manner.

(i-3-a, Mode Formation) When a reverse play mode formation command is issued from the stop mode, the right electromagnetic plunger 63' is energized and the second motor 31' is rotated.

Therefore, the second drive gear 32' is rotated and R
The side lock lever 74' rotates counterclockwise to remove the cam pin 79' from the stop surface 72'g of the R side cam gear 67', thereby preventing the rotation of the cam gear 67'. is released, and as a result, the R-side play lever 82' moves back slightly from the stop position, and the cam gear 67' rotates clockwise to rotate its teeth 7.
0' that is continuous with the counterclockwise side end of the first toothless portion 71'a is meshed with the second drive gear 32'.

From this state, the cam gear 67' is rotated by the drive gear 32', thereby advancing the R side play lever 82', and midway through the forward movement, the pressing edge 84'b presses the pressed portion 100 of the head pushing lever 97. Then press the control slot 87' with a slightly faster tie ring.
The left edge of the pressing portion 87'b is the R-side low-speed rotating lever 43.
' The controlled bin 46' is pressed approximately to the right to rotate the low-speed rotating lever 43' counterclockwise, and the pressing bin 90' is pressed against the pinch roller lever 26 on the right side.
' limiter lever 28' is pushed forward, which moves the head block 24 forward.
At the same time, the pinch roller lever 26' is rotated substantially forward.

When the cam gear 67' comes to the play position, the play stopper surface 72'f comes into contact with the cam pin 79' of the lock lever 74' which has been returned to the suction position, and the second toothless portion 71' b is opposed to the drive gear 32',
As a result, the cam gear 67' is prevented from rotating at the play position, and the play lever 82' is held at the play position.

During this time, the magnetic head 7 comes into contact with the magnetic tape 11, the R-side pinch roller 8' is pressed against the R-side capstan 9' with the magnetic tape 11 in between, and the R-side low-speed rotary lever 43' The intermediate gear 48' is connected to the R side slide table 10'.
The reel ignition gear 19' is meshed with the reel ignition gear 19'.

This state is the reverse play mode shown in FIG.

Incidentally, when the play lever 82' is advanced to a predetermined position,
The switch pressing member 92' is the R side trigger switch 10.
4 (see FIG. 1), and the control circuit or the like starts a predetermined operation using the on signal outputted from the switch 104 as a trigger.

(i-3-b, Locking and mode release of second high-speed system rotating lever) When the reverse play mode is formed in this way, the second high-speed system rotating lever 50' is connected to the lock lever 74'.
and is held in the non-meshing position by the play lever 82'.

That is, when the electromagnetic plunger 63' is energized from the stop mode, the R side lock lever 74' rotates counterclockwise, so that the pressing protrusion 76'a provided on one arm 76' The rear part of the pressed wall 54' of the second high-speed rotating lever 50' is pressed diagonally forward to the left, thereby rotating the high-speed rotating lever 50' to the non-meshing position, and the motor Immediately after this, the play lever 82' starts moving forward, so that the front end of the right fi 83'b engages the regulation bin 53' of the high-speed rotary lever 50' which has been moved to the non-meshing position as described above. The regulation bin 53 is on the left side of
This prevents the high-speed rotary lever 50' from moving toward the engagement position.

Further, when a stop mode formation command is issued from the reverse play mode, the right electromagnetic plunger 63' is energized again.

Therefore, the lock lever 74' rotates counterclockwise and the rotation of the cam gear 67' is released, so the play lever 82' moves rearward and the cam gear 57' is prevented from rotating.
' in the clockwise direction, thereby rotating the cam gear 6.
A portion of the toothed portion 70' of 7' that is continuous with the counterclockwise end of the toothless portion 71'b of 342 is engaged with the drive gear 32', and from this state, the cam gear 67' is rotated by the drive gear 32'. When the stopper surface 72'g is returned to the stop position, the stopper surface 72'g comes into contact with the cam pin 79' of the lock lever 74' which has been returned to the suction position, and the first toothless portion 71a is driven. It faces the gear 32' and is thereby stopped at the stop position.

As the play lever 82' returns to the stop position, the pressure on the pinch roller lever 26' is released, the R-side pinch roller 8' is released from being pressed against the capstan 9', and the head ejecting lever 97 is placed on standby. When the play lever 82' returns to the stop position, the right edge of the pressing portion 87'b of the control elongated hole 87' moves to the R side low speed. Controlled bin 46' of system rotation lever 43'
is pushed approximately to the left, thereby causing the low speed rotation lever 4 to
3' is returned to the non-meshing position.

(j, mode storage means) [Fig. 1, Fig. 4, Fig. 5, Fig. 7, Fig. 12, Fig. 13] 105 indicates whether the play mode formed as described above is the normal play mode. It is a mode storage means for remembering whether it is reverse play mode, and is equipped with a slide switch type memory switch, and when the operation switch for play mode selection is pressed from a mode other than play mode, the memory is A play mode of a type corresponding to the connection state of the switch, that is, a play mode of the type selected immediately before is formed.

(j-1, memory switch, memory slider) 106 is a memory switch attached to a circuit board (not shown), and its mover 106a is in the first position shown in FIG. 12 and in the second position shown in FIG. A click stop is applied at these two positions, and the connection status changes as the position changes.

Reference numeral 107 denotes a memory slider for moving the movable element 106a, which includes a main part 108 elongated in the left-right direction and a tall pressing part 109 hanging from the right end of the main part 108.
A notch 110 that is long in the left-right direction is formed in the lower end surface of the pressing part 109, and a guide bin 11 whose main part 108 is provided at a position near the rear end of the lower surface 5a of the mechanical chassis 5.
1.111 so as to be movable in the left and right direction within a certain range, and the movable element 1 is placed within the notch 110.
06a is positioned with a slight margin.

(j-2, memory lever) Reference numerals 112 and 112' are memory levers for moving the memory slider 107, which have an abbreviated shape and are arranged symmetrically. A bent portion of the left memory lever 112 (hereinafter referred to as "rN side memory lever") is rotatably supported on the upper part of the gear support shaft 41 that supports the three left speed increasing gears, Right side memory lever 112' (hereinafter referred to as "R side memory lever")
A bent portion thereof is rotatably supported on the upper part of a gear support shaft 41 that supports the right speed increasing gear 39'.

The rear edge of the main portion 108 of the memory slider 107 has two notches 108a and 108a spaced apart from each other in the left and right direction.
08b, and pressed protrusions 112a, 112'a projecting upward from the front end of one arm extending substantially in the front-rear direction of the memory lever 112, 112' are inserted into the two notches 108a, 108b. , are located separately and with some space in the left and right direction.

Further, engagement pins 112b, 112'b are attached to the tip of the other arm extending substantially in the left-right direction of the memory lever 112, 112'.
is provided to protrude downward, and the lower end of the retaining pin 112b of the N-side memory lever 112 is engaged with an engaging portion 113 formed near the front end of the N-side play lever 82.
The lower end of the engagement pin 112'b of the R-side memory lever 112' is connected to an engagement edge 114 facing rearward, which is provided in a long hole 114 formed near the front end of the R-side play lever 82'.
It is located so as to face A from the rear.

A tension spring 115 is stretched between the upper part f4 of the protruding piece 91' of the R-side play lever 82' and a spring hook part 112''C formed on the lower surface of the R-side memory lever 112'. Due to the tensile force of the tension spring 115, the engagement pin 112'b and the engagement edge 114a are brought into elastic contact.

Following this, when the N-side play lever 82 moves, the N-side memory lever 1!2 is rotated so that its engagement pin 112b is pressed substantially in the front-back direction and the front end portion 112a moves substantially in the left-right direction. Furthermore, when the R side play lever 82' moves, the R side memory lever 112' moves its engagement bin 112'.
As b moves to follow the engagement edge 114a, it is also rotated so that its front end 112'a moves substantially in the left-right direction.

(J-3, 9) Therefore, when the normal play mode is established, the N-side play lever 82 moves to the play position, so the N-side memory lever 112 rotates counterclockwise when viewed from below. The front end 112a of the memory slider 107
The left edge of the notch 108a formed on the left side is pressed, thereby moving the memory slider 107 to the normal position shown in FIG. is moved to a position where the mover 108a of is moved to the first position. Therefore, if the movable element 108a is in the second position before the play lever 82 moves forward, the movable element 108a is in the second position.
6a is moved from the second position to the position 341, and when it was in the first position from the beginning, the memory slider 10
7 ends up being a miss, so to speak.

Further, when the reverse play mode is established, the R side play lever 82' moves to the play position, so the R side memory lever 112' is rotated clockwise when viewed from below, and the front end 112' a is memory slider 10
7, the memory slider 107 is in the reverse position shown in FIG.
is moved to a position that moves a to the second position. Therefore, before the play lever 82' moves forward, the mover 10
6a is in the first position, the mover 106a is moved from the i-th position to the second position, and the mover 106a is moved from the i-th position to the second position.
When the memory slider 107 is at the position shown in FIG.

When the play mode is released, the play lever 82 or 82', which had been advanced to the play position, moves backward, so the N side memory lever 112 is rotated clockwise or the R side memory lever 112 is rotated clockwise. 112' is rotated counterclockwise, so that its front end N5112a presses the right side of the notch 108a or the front end 112'a presses the left side of the notch t oab, and the memory slider 1 is rotated.
07 to the neutral position shown in FIG. 1, that is, the intermediate position between the normal position and the reverse position.

In addition, the length in the left-right direction of the notch 110 of the memory slider 107 and the movable element! The relationship with the stroke of 06a is
When the memory slider 107 returns to the neutral position, the movable element 106a is not moved.

Therefore, in the control circuit, when the connection state of the memory switch 106 (therefore, the type of play mode concerned is detected and the operation button for play mode selection is pressed from a mode other than the play mode), the memory switch 106 is detected.
The play mode is configured to be of a different type depending on the current connection state of the player 6.

In addition, due to some reason, the two play levers 82 and 8
2' start moving forward at the same time, the two memory levers 112 and 112' try to rotate in opposite directions at the same time, but the R side play lever 82' and the memory lever 11
2' is connected with the tension spring 115, so if the above-mentioned situation occurs, the engagement pin 1
12'b and the engaging edge 114a are separated, Rfl1
l Memory lever 112' is prevented from rotating.

(G. Effects of the Invention) As is clear from the above description, the tape player of the present invention includes a mode lever that is moved between a play position that forms a play mode and a stop position that forms a stop mode; A cam gear that moves the mode lever to a play position, a lock lever that is held in a lock position to lock the position of the cam gear by an electromagnetic plunger in the stop mode and the play mode, and is released from the holding when the play mode is established; A drive unit common to high-speed driving mode, an intermediate gear inserted between the drive unit and the high-speed rotation transmission system, and a high-speed rotation transmission of the intermediate gear by supporting the intermediate gear and rotating the intermediate gear. The tape player is equipped with a rotary lever that is biased with rotational force in the direction of meshing with the system, and when the lock lever is released, the lock lever moves the rotary lever toward the side opposite to the high-speed rotation transmission system. The mode lever is pressed and held in that state by the mode lever moved to the play position.

Therefore, in the tape player of the present invention, the movement of the members of the play mode formation system can be used to prevent the rotation of the high-speed running mode rotation lever to the engagement position required when forming the play mode. Therefore, there is no need for a special means for the above-mentioned prevention, and the number of parts and assembly man-hours can be reduced accordingly.Moreover, it is not necessary to prevent the rotation of the rotation lever to the engaged position. Since the operation is performed reliably without losing the timing, the reliability of preventing malfunctions can be improved.

It should be noted that the specific structures and shapes shown in the above embodiments are merely examples for implementing the present invention.
These should not be construed to limit the technical scope of the present invention.

[Brief explanation of drawings]

The drawings show an example of the implementation of the tape player of the present invention, in which Fig. 1 is a bottom view showing the entire operating mechanism, Fig. 2 is an external perspective view of the tape player, and Fig. 3 is a plan view of the cassette loading section. , FIG. 4 is an enlarged sectional view taken along the line rv-rv in FIG. 1, FIG. 5 is a sectional view of the main part along the line V-V in FIG. 4, and FIG. 6 is a rear view of the operating mechanism. Figure 7 is an exploded perspective view of the main parts, Figure 8 is an enlarged perspective view of the negative cam gear, Figure 9 is an enlarged vertical sectional view of the high-speed transmission system rotating lever, and Figure 10 is the bottom view of the main parts in early retreat mode. Fig. 11 is a bottom view of the main parts in rewind mode, Fig. 12 is a bottom view of the main parts in normal play mode, Fig. 13 is a bottom view of the main parts in reverse play mode, and Fig. 14 is a bottom view of the main parts in normal play mode. It is a bottom view of the main part which shows mode formation operation from (A) to (B) over time. Explanation of symbols 1... Tape player, 13.13'... Drive section, 38.38'... High speed rotation transmission system, 50.50'... Rotating lever 56. 63. 67. 74. 82. 56 ′ 63 ′ 67 ′ 74 ′ 82 ′ ・Intermediate gear, ・Electromagnetic plunger, ・Cam gear, ・Lock lever ・Mode lever L...Tape player external perspective view Diagram Cross-sectional view of main parts (V-V line) 5 Figure 67...Cam gear diameter @T#, Figure 50...Enlarged vertical sectional view of the rotating lever Figure 66 Bottom view of the key part Figure 0 Bottom view of the key part Figure 11 of the key part Bottom view Fig. 14 (A) Bottom view of the main shaft Fig. 14 (B)

Claims (1)

[Claims] A mode lever that is moved between a play position forming a play mode and a stop position forming a stop mode, a cam gear that moves the mode lever to the play position, and a cam gear that moves the mode lever to the play position; includes a lock lever that is held in a lock position to lock the position of the cam gear by an electromagnetic plunger and is released from the above-mentioned holding when the play mode is established, a drive unit that is common to the play mode and the high-speed driving mode, and the drive unit and the high-speed rotation transmission system. an intermediate gear inserted between the intermediate gear and a rotating lever that supports the intermediate gear and is biased with rotational force in a direction to mesh the intermediate gear with the high-speed rotation transmission system when the intermediate gear is rotated; When the lock lever is unlocked, the lock lever presses the rotary lever toward the side opposite to the high-speed rotation transmission system, and this state is maintained by the mode lever moved to the play position. A tape player characterized by