KR100195427B1 - Tape recorder - Google Patents

Abstract

The present invention provides a tape recorder having a first cassette mechanism having A side reproducing and a B side regenerating function and a fast-forwarding function, and a second cassette mechanism having both functions in the same manner, wherein either one of each of the above mechanisms, or Mechanism selecting means for operating both sides, head channel switching means for simultaneously switching the head channel of each mechanism to the A side or the B side, and the winding direction for switching each reproduction winding system of the respective mechanism to the A side or the B side Selection means, a winding system selecting means for selecting a rewinding system or a fast winding system for each of the mechanisms, and an operation command of a selection operation or simultaneous operation of the first and second cassette mechanisms, and a response to a reproducing or fast-forwarding mode command; And a tape recorder comprising a single cam gear which is rotationally controlled by the rotational force of the motor and operates the respective means. To.

The tape recorder of the present invention can accurately execute the selection operation or the simultaneous operation of the first and second cassette mechanisms by the suction operation according to the timing chart according to the desired operation mode of the single flanger, and the rotation of the single cam gear, The structure of this kind of double cassette mechanism, especially the flanger and the cam gear, can be kept to a minimum, and can be simplified. It is very useful as a teal control double cassette recorder.

Description

Tape recorder

The figure shows an embodiment of the tape recorder of the present invention,

1 is a plan view of a stationary state when the chassis is seen from above.

2 is a plan view of the same stationary state as seen from the bottom of the chassis.

3 is a plan view of the main part of the mode switching part.

Figure 4 (a, b) is a plan view of the cam gear from one side and the other side.

5 is a plan view of the cam gear of FIG.

6 is a front view of a head and a pinch roller part in the A plane (forward direction) regeneration state.

7 is a front view of the head and the pinch roller portion in the B plane (reverse direction) regeneration state.

8 is a timing chart showing timing of suction and motor rotation of the flanger.

9 is a plan view of the flanger suction from the top of the chassis;

10 is a plan view of the flanger suction state seen from the bottom of the chassis;

Figure 11 (a, a ', b, b', c, c ') is a partial plan view of a mechanism for selecting the first and second mechanisms.

Fig. 12 (a, b, c, d, e, f) is a plan view of another state for explaining the rotation of the cam gear and the mode selection timing.

* Explanation of symbols for main parts of the drawings

1: mechanism chassis 2, 3: head support plate

4, 5: rotary head device 32, 33, 34, 35: flywheel

36: motor 39, 40, 41, 42: gear portion

43, 44, 45, 46: regenerative winding relay gear

57, 58, 59, 60: winding reel gear 64, 65: high speed gear

66, 67: high speed drive lever 72: single cam gear

73: first engagement portion 74: flywheel gear portion

76: 2nd engaging part 78: 1st concave cam part

79: branch portion 82: second concave cam portion

84: branch portion 87: concave cam portion

88: convex cam portion 89: reset projection

90: main trigger lever 91: flanger

92: sub-trigger lever 100: head switch slide

101: following pin 110: combined bending piece

113: cold transition slide 114: following pin

120: driving slide 122: following bent portion

123: Selection Slide 125: Lock Lever

The present invention relates to a tape recorder in which a first cassette mechanism and a second cassette mechanism are arranged side by side.

Tape recorders having the first cassette mechanism and the second cassette mechanism arranged side by side in general are generally called double cassette tape recorders and a number of configurations are known.

Such a tape recorder is useful for dubbing tapes, since it is possible to selectively operate the first cassette mechanism and the second cassette mechanism, or to operate each mechanism simultaneously. Recently, it is also known that the first cassette mechanism or the second cassette mechanism is capable of A side (forward) reproduction and B side (reverse) reproduction, or equipped with an automatic selection function.

In the conventional example of a tape recorder of this kind, two mechanisms are operated by a single motor as described, for example, in Japanese Patent Laid-Open No. 61-9, 855 (G11B 15/10). As disclosed in Japanese Patent Application Laid-Open No. 57-109, 153 (G11B 15/02), it is known to execute a switching operation of a mechanism by using a rotational force of a motor.

In addition, the operation mode of the tape recorder can be switched by a command signal operated by an electrical switch, and the mechanism can be switched using the rotational force of the motor thereon while the head is rotated 180 degrees. A bidirectional reproducing tape recorder in which reproducing operations of (forward direction) and B (reverse direction) are executed is also described in Japanese Patent Laid-Open Nos. 62-23 and 385 (G11B 15/44).

As described above, a tape recorder having various configurations is known in the art, but a double cassette tape recorder is a member for operating means and a mechanism switching mechanism (cam gear in the case of using a rotational force of the motor) corresponding to each mechanism. In addition, the tape recorder of the logic control system requires the installation of a plurality of flangers for mechanism control, and the overall configuration is complicated, and there is a problem that it is expensive.

The present invention is directed to a tape recorder having a first cassette mechanism having an A-side reproduction and a B-side reproduction function and a fast forward function, and a second cassette mechanism having both functions. In

a. Mechanism selecting means for operating one or both of the mechanisms,

b. Head channel switching means for simultaneously switching the head channels of the mechanisms to the A plane or the B plane;

c. Winding direction selecting means for switching each reproduction winding system of each mechanism to an A surface or a B surface,

d. Winding system selection means for selecting a rewinding system or a fast winding system for each of the mechanisms, and

e. A tape comprising a single cam gear that is rotationally controlled by a rotational force of the motor in response to a selection command of the first and second cassette mechanisms or an operation command of simultaneous operation and a regeneration or fast forward mode command; To provide a recorder.

According to the present invention comprising the above means, the reproducing operation and the fast forward operation of the first cassette mechanism, the reproducing operation and the fast forward operation of the second cassette mechanism can be executed by the same cam gear. The first and second cassette mechanism selection means can be selectively operated and simultaneously operated.

An embodiment of the tape recorder of the present invention shown in the following figures will be described.

First, the components and operation functions of the tape recorder of the present invention will be described with reference to FIGS.

Reference numeral 1 denotes a mechanism chassis, the first cassette mechanism I for the first cassette C1 indicated by the broken line and the second cassette mechanism II for the second cassette C2 indicated by the broken line. ) Is composed of a synthetic resin molded article having an integral structure in which each component is arranged side by side, and a rotational axis of each component, a guide boss for guiding the movement of the lever, a cassette support, a post pin, and the like are integrally formed.

In FIG. 1, the mechanism chassis 1 is viewed from above, the reference numerals 2 and 3 are head support plates, and the head support plates 2 and 3 are rotated 180 degrees to the A side channel and the B side channel of the tape. The head apparatuses 4 and 5 in which the head-to-head opposing relationship is switched are provided, and move with the head support plate in the up-down direction of the figure. In addition, the structure of such a head apparatus is the same as that of the said Unexamined-Japanese-Patent No. 62-23, 385.

The pinch lever assemblies 6, 7, 8, and 9 are rotatable about the shaft portions 1a, 1b, 1c, and 1d of the chassis 1, respectively, and the boss portions 6a, 7a, 8a, and 9a are each rotated. Through the holes 2a, 2b, 3a, 3b of the head support plates 2 and 3, the pinch rollers 14, 15, 16, and 17 are capstaned by the pinch wires 10, 11, 12, and 13, respectively. The force is applied in the direction toward (18, 19, 20, 21). Reference numerals 22, 23, 24, and 25 denote winding reel shafts. Reference numerals 26 and 27 are relay levers connected by the head support plates 2 and 3 and the springs 28 and 29, and each of the relay levers 26 and 27 is rotatable to the shaft portions 1e and 1f on the chassis. It is. Reference numerals 30 and 31 denote springs for applying the head supporting plates 2 and 3 to the downward direction (stop position) of the drawing.

In FIG. 2, the mechanism chassis 1 is viewed from below, reference numerals 32, 33, 34, and 35 are flywheels which are rotationally driven through the belts 37 and 38 using the single motor 36 as a driving source. The 32 and 33 rotate in opposite directions, and the flywheels 34 and 35 rotate in opposite directions. Reference numerals 39, 40, 41, and 42 denote gear portions integrated with each flywheel. Reference numerals 43, 44, 45, and 46 denote regeneration winding relay gears constituting the rewinding system. The gears 43, 44 and the gears 45, 46 are formed up and down to maintain the slip mechanism to transmit torque. , The gears 43 and 44 are rotatably installed on the lever 47 rotatable around the bearing portion of the flywheel 33, and the gears 45 and 46 are rotatable around the bearing portion of the flywheel 35. Rotation is provided freely on the lever 48.

The relay gear 43 is always engaged with the gear portion 40 of the flywheel 33, and the relay gear 45 is always engaged with the gear portion 42 of the flywheel 35.

Reference numerals 49 and 50 denote gears rotatably installed around the shaft portions 1g and 1h of the chassis 1, respectively, and the gears 44 when the levers 47 and 48 rotate counterclockwise in the drawing. , 46).

Reference numerals 51 and 52 are shift gears rotatably installed on the support shafts 55 and 56 provided on the levers 53 and 54 which are rotatable about the shaft portions 1g and 1h. Is meshed with the gear 49, and the other switching gear 52 is meshed with the gear 50.

Reference numerals 57, 58, 59, and 60 are winding reel gears installed on the winding reel shafts 22, 23, 24, and 25, and the reel gears 58, 60 are supported on the shaft portions 1i, 1j of the chassis. It meshes with the small gears 61 and 62.

In the position where the levers 53 and 54 are rotated counterclockwise, the gear 51 is engaged with the gear 62, the gear 52 is engaged with the gear 61, and the levers 53 and 54 are clockwise. In the rotated position, the gear 51 is configured to mesh with the gear 59 and the gear 52 to mesh with the gear 57.

In addition, the lever 53 maintains theft by the stepper spring 63 connected to the spring engaging portion of the chassis, and is urged in another rotational position direction.

The above is the explanation of the reproduction winding system for executing the reproduction operation.

Next, the high speed winding system will be described.

Reference numerals 64 and 65 denote high-speed gears rotatably installed on the shafts 68 and 69 of the high-speed drive levers 66 and 67 that are rotatable with the rotary shaft portions 1g and 1h as points. The gear 64 is powered by a belt 70 spanning the pulley portion integrally formed with the gear 49, and the right gear 65 is powered by the belt 71 like the gear 50. It is supposed to be.

The gear 64 is engaged with the gear 39 of the flywheel, and the gear 69 is engaged with the high speed drive levers 66 and 67 by rotating in the counterclockwise direction with respect to the flywheel gear 41.

Therefore, as the drive of the fast winding, the rotation of the flywheel 32 is transmitted to the gear 64 in the case of the mechanism on the left side, and the power is transmitted by the belt 70. The reel gear 60 or 59 is transmitted to the reel gear 60 or 59 by the left and right rotational positions of the gear 51, and one of the reel shafts is rotated at a high speed to perform a fast winding operation.

Next, a part of the mode switching mechanism will be described.

Reference numeral 72 is an approximation between the first cassette mechanism located on the right side in FIG. 2 (left side in FIG. 1) and the second cassette mechanism located on the left side (right side in FIG. 1) in FIG. 2. In the center of gravity, it is a single cam gear rotatably provided on the shaft portion 1k of the chassis 1, and this cam gear 72 has a first cassette portion 73 at the first cassette mechanism side when the tape recorder is stopped. It opposes the gear part 74 of the flywheel 34 in WHEREIN, and it rotates by meshing with this gear part 74 suitably at the time of mode switching.

Here, FIG. 4A shows one side of the cam gear 72 and FIG. 4B shows the other side of the cam gear 72. On one surface of the cam gear 72, the first locking projection 75 and the second locking portion 76, which are engaged at positions where the first locking portion 73 faces the gear portion 74, are gear portions 74. ) The first concave cam portion 78 having the second locking portion 77 at the position opposite to the inner wall and the second concave cam portion 82 having the passages 80 and 81 with the branch portion 79 interposed therebetween. ) Is installed.

In addition, on the other side of the cam gear 72, a concave cam portion 87 having passages 85 and 86 is provided with the locking portion 83 on the inner wall and with the branch portions 84 interposed therebetween. And the center part is provided with the concave cam part 88 which consists of a part of the same diameter and a different diameter from a shaft. Moreover, the reset | protrusion protrusion 89 is provided.

Reference numeral 90 denotes a main trigger lever. The trigger lever 90 is pivotable about the shaft portion 11 of the chassis and is turned on / off at an operation timing corresponding to each mode shown in FIG. It rotates clockwise by the suction operation of 91. FIG.

Reference numeral 92 is a sub-trigger lever that rotates about the shaft portion 11 similarly to the main trigger lever 90. The trigger lever 92 is formed by the main trigger lever 90 and the spring 93. In general, both trigger levers 90 and 92 rotate integrally.

The engaging pin 95 of the first arm 94 of the main trigger lever 90 is engaged in engagement with the first concave cam portion 78 (see FIG. 4 a) of the cam gear 72. The rotation of the cam gear 72 is controlled by the suction operation of the flanger 92.

Moreover, the 2nd arm 96 and the 3rd arm 97 of the said main trigger lever 90 oppose the one end of the said high speed drive lever 66, 67, respectively, by the suction operation of the flanger 91. The high speed drive levers 66, 67 are rotated toward the operating position.

Each of the high speed drive levers 66 and 67 is applied by the springs 98 and 99 in the clockwise direction so as to be in the inoperative position.

Reference numeral 100 denotes a head shifting slide which is free to move from side to side by the guide shafts 1m and 1n of the chassis, and a follower pin 101 fixed to the head shifting slide 100 of the cam gear 72 It is connected to the concave cam part 87 (refer FIG. 4B), and moves a fixed stroke along the cam shape in the left-right direction of FIG.

The head switching slide 100 is related to the rotary head device 4, 5, the pinch lever assembly 6, 7, 8, 9 of the right and left cassette mechanism as shown in FIGS. 6 and 7. That is, the cutting parts 102 and 103 of the head switching slide 100 are coupled to the head switching levers 104 and 105, and the cutting parts 106, 107, 108 and 109 The pinch lever assemblies 6, 7, 8, and 9 are coupled to the bosses 6a, 7a, 8a, and 9a.

The configuration of these transitions is, for example, almost the same as the configuration described in FIG. 10 of Japanese Patent Laid-Open Nos. 62-23 and 385 in the prior art, and thus detailed description thereof is omitted.

An engaging bending piece 110 is formed in the head switching slide 100, and the engaging bending piece 110 is engaged with an operation pin 111 provided at one end of the lever 53.

In addition, the head switching slide 100 is always exerted a force in the right direction of FIG. 2 by the linear spring 112 wound around the fixed portion 1o of the chassis.

Reference numeral 113 denotes a winding switching slide for switching the rewinding direction of the right mechanism in FIG. 2, and the slide is free to the left and right by the guide shaft 1p of the chassis, and the linear spring 112 is used. Force is always applied in the right direction of FIG. The tracking pin 114 provided at one end of the winding switching slide 113 is connected to the second concave cam portion 82, which is one surface of the cam gear 72, and is rotated by the cam gear. 113) slide left and right.

Moreover, this winding change slide 113 is connected by the said lever 54 and the tension spring 115, As a result, the lever 54 rotates to the left and right according to the displacement of this winding change slide 113. As shown in FIG. It is.

Moreover, this winding switching slide 113 is provided with the projection wall 118 which opposes the operation part 117 of the 4th arm 116 of the said main trigger lever 90. As shown in FIG. A projection wall 119 is also provided on the head switching slide 100 facing the operation portion 117 of the fourth arm 116 (see FIG. 5).

Next, the drive mechanism of the head support plates 2 and 3 and the selection mechanism of the drive mechanism will be described.

Reference numeral 120 denotes a drive slide for driving the head support plates 2 and 3, and the drive slide 120 is installed to be movable along the guide shafts 1k and 1q in the vertical direction in FIG. The force is always applied upward by the linear spring 121.

The following bent portion 122 of the drive slide 120 is engaged with the concave cam portion 88 of the cam gear 72, as clearly shown in FIG. 3, and in accordance with the rotation of the cam gear 72. Slide up and down.

On the upper surface of the drive slide 120, a selection slide 123 for selecting a driving mechanism that is slidable in two positions left and right in FIG. 2 is provided, which is selected by the spring 124. The force is always on the left side.

The right bent piece 125 of the selection slide 123 opposes the position at which the sub trigger lever 92 engages, and the pair of bent pieces 126, 127 facing each other is shown in FIG. Similarly, it protrudes from the perforations 1r and 1s of the chassis 1 and selectively engages with the relay levers 26 and 27.

Reference numeral 125 denotes a lock lever freely rotatable to the guide shaft 1q to lock the position where the drive slide 120 slides upward in the drawing, and the lock lever 125 includes a drive slide ( The lock 127 which engages with the projection piece 126 of 120, and the reset projection piece 128 facing the reset projection 89 on the other side of the cam gear 72 are provided (fifth) See also).

Reference numeral 129 denotes an operation detection switch that is turned on when the driving slide 120 slides to an upper position and is locked.

8 shows the suction operation timing and motor 36 of the flanger 91 for executing various operation modes for selectively operating the first and second cassette mechanisms, and a dubbing operation mode for simultaneously operating the first and second cassette mechanisms. In this timing diagram, the portion where the pulse rises indicates the hop state of the flanger 91 and the rotation state of the motor 36 in this timing diagram. The figure shows that the rotation of the cam gear 72 is initiated at the first engagement portion 73 by the main trigger lever 90 and the flywheel gear at the position of the second engagement portion 76 by the operating command of each mode. Each operation mode is shown to be executed until the engagement with the 74 is released, and by the stop command, the cam gear 72 rotates only slightly in the second engagement portion 76 to position the first attachment portion 73. It shows the state of stopping at.

The tape recorder of the present invention is configured as described above and the operation thereof will be described next.

(1) Selection of the first and second mechanisms

When the flanger 91 is sucked by the pulse P1 of FIG. 8 from the stop state of FIG. 1 and FIG. 2, it will be in the state shown in FIG. That is, by the suction of the flanger 91, the main trigger lever 90 is rotated in the clockwise direction, and the locking pin 95 of the first arm 92 moves to the first of the concave cam portion 78 of the cam gear 72. The cam gear 72 rotates slightly counterclockwise by falling off the locking portion 75 and contacting the inclined surface facing the first locking portion so that the geared portion of the flywheel 34 with the gear 74 is rotated. Engage to start rotation.

Then, the driving slide 120 follows the convex cam portion 88 of the cam gear 72 and slides downward in the drawing.

FIG. 11 is a view for explaining the operation of the relay levers 26 and 27 seen from the upper side of the chassis 1, and the first cassette mechanism on the left side is selected by simultaneous selection or simultaneous operation of the relay levers 26 and 27. FIG. And the head support plate of the second cassette mechanism on the right side are operated.

That is, when the driving slide 120 slides downward in the drawing without drawing the flanger 91 in the state of FIG. 11 (a), the selection slide 123 [ At this time, the flanger is not in the suction operation, so it is in the first position slid on the right side of the drawing]. It will rotate in the direction. Rotation of the relay lever 27 causes the head support plate 3 of the second cassette mechanism located on the right side in FIG. 1 to move upwardly from the stop position through the spring 29 to bring it to the regeneration position. 2 Make the cassette mechanism the selected operation.

Next, in the state of the figure (b) in which the flanger 91 is sucked in the state of FIG. 11 (a) and the selection slide 123 slides to the left of the figure and is in the second position, the driving slide 120 As shown in the figure (b '), the bending piece 126 on the left side engages with the left relay lever 26 and rotates the relay lever 26 clockwise. The rotation of the relay lever 26 causes the head support plate 2 of the first cassette mechanism located on the left side in FIG. 1 to move upwardly from the stop position to the regeneration position through the spring 28. 1 Make the cassette mechanism the selected operation.

Moreover, in the state of FIG. 11 (b), the cam gear 72 rotates, the drive slide 120 slides downward, and the tip projection of the bending piece 126 and the left relay lever 26 of the selection slide 123 is performed. When (26a) releases the suction operation of the flanger 91 at the position where it is engaged by δL in the figure, the bending piece 127 has the right relay lever 27 and the clearance for δM in the figure. c). However, in this state, the driving slide 120 slides further downward by the rotation of the cam gear, so that the left and right relay levers 26, 27 rotate as shown in the drawing (c '), so that the first and second cassettes are rotated. The head support plates 2 and 3 of the mechanism move upward together to the playback position (recording position), so that the first cassette mechanism can be set to the dubbing mode in which the playback operation and the second cassette mechanism side are the recording operations. have.

As described above, the selection operation of the first and second cassette mechanisms and the simultaneous operation of the first and second cassette mechanisms can be performed.

(2) Choice of A side, B side rewinder

FIG. 12 shows the cam gear 72 and its related parts corresponding to FIG. 2 in a form in which the rotation angle of the cam gear 72 is changed, and will be described together with the same figure.

First, FIG. 12 (a) shows the positional relationship of the stationary state and is caught by the first locking portion 75 of the locking pin 94 of the first arm 94 of the main trigger lever 90, and the cam gear ( 72, the 1st engagement part 73 opposes the gear 74. As shown in FIG. In this state, when the flanger 91 is sucked by the pulse P1 of FIG. 8 instantaneously, the locking pin 95 falls off from the first locking portion 75 and at the same time comes into contact with the inclined surface on the opposite side, and the cam gear It rotates only slightly counterclockwise 72, the geared part of the cam gear 72 meshes with the gear 74, and it will be in the state shown by the same figure (b). In this state, the head switching slide 100 is slid once by the locking portion 83 of the concave cap portion 87 of the cam gear 72 in the right direction in the drawing, and by the slide of the head switching slide 100. The rotating head device of each mechanism is always reset to the position of A (forward) reproduction (recording).

Further, when the cam gear 72 rotates, the tracking pin 101 on the head switching slide 100 touches the end of the branch portion 84 of the concave cam portion 87 on the other side of the gear and is caught. It will be in the state of FIG.

At this time, the follower pin 101 passes through the passage 85 or the passage 86 depending on whether or not the flanger 91 is suction-operated.

In other words, if the flanger 91 is suctioned at this time, the head switching slide 100 is pushed to the left by the actuating portion 117 of the fourth arm 116 of the main trigger lever 90. The pin 101 passes through the outer passage 85.

Incidentally, the head switching slide 100 slides along the passage 85 in the left direction, and the pinch lever assembly is correspondingly switched while the rotating head device is switched to the B surface (reverse) regeneration (recording) channel.

At the same time, the lever 53 of the second cassette mechanism (left in FIG. 2) rotates in the clockwise direction of the figure and the gear 51 on the lever 53 is engaged with the winding reel gear 59, The mechanism is in the state of selecting a winding system for B-plane (reverse) regeneration.

On the other hand, if the flanger 91 is not suctioned at this time, the head switching slide 100 is not pressurized in the left direction, so the following pin 101 passes through the inner passage 86, and this head switching slide 100 Is displaced to the right along this passage, and then returned to its original position, and the reel winding gear 51 of the second cassette mechanism is rotated with the rotating head unit as the A side (forward) regeneration (recording) channel. 62), the mechanism is in the state of selecting a winding system for A-plane (forward) regeneration.

Then, when the cam gear 72 rotates again, the following pin 114 of the winding switching slide 113 touches the end of the branch portion 79 of the second concave cam portion 82 on one side of the cam gear 72. It will be in the state of FIG. 12 (d).

At this time, the follower pin 114 passes through the passage 80 or the passage 81, depending on whether the flanger 91 is suction-operated.

That is, when the flanger 91 is aspirating, since the winding switching slide 113 is pressed in the left direction by the operating part 117 of the fourth arm 116 of the main trigger lever 90, the following pin 114 ) Will pass through the inner passage (80).

By the way, the winding switching slide 113 slides in the left direction, and in Fig. 2, the lever 54 of the right first cassette mechanism is rotated in the clockwise direction of the drawing, so that the gear 52 on the lever is a reel gear. In conjunction with (57), the mechanism is in the state of selecting a winding system for B-plane (reverse) regeneration.

On the other hand, if the flanger 91 is not suctioned at this time, since the winding change slide 113 is not pressed in the left direction, the following pin 114 passes through the outer passage 81, and this winding change slide 113 ) Slides in the right direction, and in FIG. 2, the lever 54 of the right first cassette mechanism rotates in the counterclockwise direction of the drawing, and the gear 52 on the lever is engaged with the gear 61 so that the mechanism The winding meter for the A-plane (forward direction) regeneration is selected.

Rotation of the cam gear 72 is carried out with respect to the engaging pin 95 of the 1st arm 94 of the main trigger lever 90 simultaneously with the 2nd engagement part 76 opposing the gear 74, and When the second locking portion 77 of the concave cam portion 78 is locked, the rotation is stopped, and the state becomes as shown in Fig. 12E or Fig. 12F.

(3) Operation selection of rewinder and high-speed rewinder

In the driving slide 120, since the following bending portion 122 is engaged with the convex cam portion 88 of the cam gear 72, the driving slide 120 slides up and down in accordance with the rotation of the cam gear, but the mechanism is at the beginning of the rotation of the cam gear 72. Even in the state of sliding slightly downward for selection, that is, in the state of FIG. 11 (c), the relay levers 26 and 27 are not rotated yet, and the head support plates 2 and 3 are not moved. The same holds true even if the above-described state of the selection operation of the winding system for the A- and B-plane regeneration is completed, that is, the state of FIG.

The operation of the rewinder and the operation of the high-speed reel may include whether or not to suck the flanger 91 when the cam gear 72 rotates again and the head support plates 2 and 3 slide to the lower position. Run according to

That is, in the state where the flanger 91 does not operate by suction, the head support plates 2 and 3 move a full stroke upwards. By this movement, the actuating pins 47a, 48a on the levers 47, 48 of the rewinding gears 44, 46 (protruding upward from the perforations of the chassis as shown in Fig. 1) are heads. Apart from the cam faces 2 ', 3' of the support plates 2, 3, the levers 47, 48 rotate in a clockwise direction (counterclockwise in FIG. 2) in FIG. Gears 44 and 46 mesh with gears 49 and 50.

By the above operation, the operation of the rewinder is selected.

Next, when the head support plates 2 and 3 move while the flanger 91 is sucked in, the main trigger lever 90 rotates clockwise in FIG. The left high speed drive lever 66 is rotated counterclockwise on the second arm 96 and the right high speed drive lever 67 is rotated counterclockwise on the third arm 97.

By this rotation, the control pins 130 and 131 at one end of the high speed drive levers 66 and 67 (protruding upward from the perforations of the chassis as shown in FIG. 9) are supported by the head support plates 2 and 3. The inclined control grooves 132 and 133 are opposed to the inlet, and the head support plates 2 and 3 face the upper side of the drawing with the control pins 130 and 131 facing the inclined control grooves 132 and 133. Move, the high-speed drive levers 66, 67 contact the inclined control grooves 132, 133 and rotate largely counterclockwise again, and the gears 64, 65 mesh with the gears 39, 41 of the flywheel. . At the same time, the tilt support grooves 132 and 133 contact the control pins 130 and 131 at the head support plates 2 and 3 so that the movement of the full stroke is prevented.

The moving positions of the head support plates 2 and 3 are so-called cue and review positions, wherein the swing pins 130 and 131 of the levers 66 and 67 are moved to the head support plates 2 and 3. The regenerative winding relay gears 44 and 46 are not engaged with the gears 49 and 50 since they remain engaged with the cam faces 2 'and 3' of the second and second cams.

By the above operation, the operation of the fast forward system is selected.

In addition, as described above, if the head support plates 2 and 3 have moved upwards and the drive slide 120 slides upward by a full stroke, the projection of this drive slide 120 as shown in FIG. The piece 126 engages with the lock jaw 127 of the lock lever 125 so that its position is preserved.

In the above description, (1) the selection of the first and second cassette mechanisms, (2) the selection of the A- and B-plane rewinders, and (3) the operation selection of the rewinder and the fast-winding system have been described. By performing these selection operations in accordance with the timing chart shown in FIG. 8, by controlling the suction operation of the flanger and the rotation of the motor, the desired mode shown in the figure can be executed.

The mode in the drawing is

Of the first cassette mechanism

* A side (forward) playback → N-PLAY

* B side (reverse) playback → R-PLAY

* A side (forward) cue → N-CUE

* A side (forward direction) review → N-REVIW

* B side (reverse) cue → R-CUE

* Review B side (reverse direction) → R-REVIW

Of the second cassette mechanism

* A side (forward) playback → N-PLAY

* B side (reverse) playback → R-PLAY

Fast forward → FF

Rewind → REW

As a dubbing

* A side dubbing → N-DUB

* B side dubbing → R-DUB

Is displayed.

Returning to the stop state in each operation mode described above causes the flanger 91 to be sucked in an instant, and the cam gear 72 is opposed to the gear 74 from the second engagement portion by the main trigger lever. By rotating until the lock projection 125 of the cam gear 72 abuts against the reset projection 128 of the lock lever 125, and rotates the lock lever 125 clockwise to drive the slide. 120) to return to the stop position.

Since the tape recorder of the present invention is configured as described above, the selection operation or simultaneous operation of the first and second cassette mechanisms can be applied to the suction operation according to the timing chart according to the desired operation mode of the single flanger and the rotation of the single cam gear. It is possible to accurately realize it, and it is possible to simplify the configuration of this kind of double cassette mechanism, in particular, the configuration of the flanger and the cam gear, and to simplify it, which is very useful as a logic controlled double cassette tape recorder.

Claims (3)

A tape recorder having a first cassette mechanism having an A side reproducing and a B side regenerating function and a fast forwarding function, and a second cassette mechanism having the same two functions, the method comprising: a. Mechanism selection means for operating one or both of said mechanisms, b. Head channel switching means for simultaneously switching channels of the heads of the mechanisms to the A plane or the B plane; c. Winding direction selecting means for switching each regeneration winding system of each mechanism to an A surface or a B surface, d. Winding system operation selecting means for selecting an operation of a rewinding system or a fast winding system for each of the mechanisms, and e. Rotation control of the first and second cassette mechanisms by an operation command of a selection operation or a simultaneous operation, a suction operation timing of the flanger in response to a regeneration or fast forward mode command, and a rotational force of the motor, A tape recorder comprising a single cam gear. The tape recorder of claim 1, wherein the cam gear is disposed approximately in the center between the first cassette mechanism and the second cassette mechanism. A tape recorder having a first cassette mechanism having an A side reproducing and a B side regenerating function and a fast forwarding function, and a second cassette mechanism having the same two functions, the method comprising: a. Mechanism selection means for operating one or both of said mechanisms, b. Head channel switching means for simultaneously switching the head channel of each mechanism to the A side or the B side; c. Winding direction selecting means for switching each regeneration winding system of each mechanism to an A surface or a B surface, d. Winding system operation selecting means for selecting an operation of a rewinding system or a fast winding system for each of the mechanisms, and e. Rotation control of the first and second cassette mechanisms by an operation command of a selection operation or a simultaneous operation, a suction operation timing of the flanger in response to a regeneration or fast forward mode command, and a rotational force of the motor, Single cam gear and f. Drive means displaced in response to a predetermined rotation of the cam gear to move the head support plate of each mechanism from the stop position toward the regeneration position, wherein the mechanism selection means has another time of ON / OFF according to the operation command. And the head support plate of the first cassette mechanism or the second cassette mechanism is driven by the drive means in response to the position of the mechanism selection means, by means of a flanger actuated by the width to displace the drive means on two different positions. And a tape recorder configured to operate.