KR900002235B1 - Invertible tape recorder - Google Patents

Abstract

A tape recorder comprises a tape moving mode setting mechanism for selectively setting a tape moving mode to a repetitive direction change mode, a direction mode, or a unidirectional mode, the repetitive direction change mode being a tape moving mode in which a moving direction of a tape within a loaded tape cassette is alternately and repeatedly changed between a forward direction and a reverse direction responsive to a direction of an end of a tape, the direction change mode being a tape moving mode in which the tape moving direction is only changed to the reverse direction from the forward direction responsive to a detection of an end of the tape.

Description

Reverse tape recorder

1 is a plan view of one embodiment of an inverted tape recorder of the present invention.

2 is a side view of a mounted tape cassette.

3 is an exploded perspective view of the mode selection mechanism.

4 is a front view of the mode switching member viewed from the front side.

5 is a plan view of the drive transmission mechanism of the inverting tape recorder.

6 is a plan view of a recording mode state in the U mode.

Fig. 7 is a plan view of a state in which the U mode is a recording mode and the absence of an anti-corrosion hook in the reverse direction is detected.

8 is a plan view of the feeding mode.

9 is a plan view of the reproduction mode in the U mode.

10 is a plan view at the time of detecting the tape end in the reverse direction of the U mode.

11 is a plan view of a regeneration mode in mode I;

12 is a perspective view around the head.

* Explanation of symbols for main parts of the drawings

1: reversible tape recorder 2: mode selector mechanism

2 ': recording mode mechanism 3: erroneous hook detection mechanism

4 tape running direction detector 5 rapid rewind mode displacement mechanism

6: operation button 6c: playback button

6d: recording button 7: forward side reel

8: Reverse side winding reel stand 9: Forward side capstan

10: reverse side capstan 13: tape cassette

13a: hook to prevent mis-reverse in the reverse direction

14: mode selection lever 15: chassis base

16: detection operation arm 17: hook detection member

18: tape running direction detection lever 19: switching operation arm

20: mode switching member 21: support base

22, 24: hook detection plate

25: tape running direction selection rotary lever

26: Rapid rewind mode detection lever 30: Recording mode detection lever

32: recording mode lever 33: connecting member

34: switching rod 35: manual reverse lever

36: abutting lever 38: switching operation lever

39: toothed gear 40: rotary lever for recording mode

42: mode switching solenoid 43: tape end detection element

44: rotation lever 45: sliding lever

46: T-shaped arm 48: L-shaped lever

50: lock plate 52: stop mode lever

54 transmission member 55 assembly member

60: drive motor 66: head

67: head holder

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an inverted tape recorder. In particular, a repetitive mode in which driving directions are switched to each other is selected, and a recording operation is recorded again in a tape track in a forward direction and a reverse direction recorded when the recording mode is operated. It is an object of the present invention to provide an inverted tape recorder which can be reliably functioned at a low cost and can be configured at low cost.

In addition, the present invention is to select the reverse mode for switching the tape running direction or inverting the head when detecting the tape end for each mode, or for selecting a stop mode for stopping the tape running for mode selection, the forward direction or the tape running direction in the reverse direction. It is an object of the present invention to provide an inverted tape recorder configured to perform a reliable function by a combination of a mechanical detection operation such as feeding and rewinding modes and the presence or absence of an anti-erase hook in the reverse direction.

In the conventional inverted tape recorder, when the recording mode is operated in a state in which the repetition code is selected by all selection operations, the setting of the recording mode as the repetition mode is electrically detected through a switch or the like, and the detected electrical signal is electrically transmitted. By supplying to the circuit, the electric circuit supports to switch from the repeat mode to the reverse mode in which the head is inverted only in the forward direction to the reverse direction, and at the same time, inverts the head, and prevents the malfunction of writing back to the recorded tape track. It is configured to. However, the conventional inverted tape recorder has a drawback that the manufacturing cost is high because it requires a lot of expensive switches and the like to function as described above.

In the conventional inverted tape recorder, the mode selection, the tape travel direction, the presence or absence of a hook for preventing erasing, and the fast rewind mode are electrically detected through a switch or the like of each detection unit, and these electrical signals are supplied to the electric circuit. In this case, the electric circuit is configured to select either the reverse mode or the stop mode at the tape end in response to the combination of the supplied electrical signals.

The present invention removes the above drawbacks and one embodiment will be described with reference to the accompanying drawings.

Then, the tape running direction between the forward direction and the reverse direction is repeated with each other, and the repeat mode (hereinafter referred to as 0 mode) in which the heads are inverted from each other, the tape running direction is reversed only in the reverse direction from the forward direction, and the head is An inversion mode (hereinafter referred to as U mode) for inverting on the reverse side and a one-way mode (hereinafter referred to as I mode) in which the tape end stops when the tape runs in one direction will be described for each mode.

The tape table detects whether the tape travel is in the reverse mode or the stop mode in accordance with each mode, and will be described in accordance with each mode with reference to the above table.

D: Reverse mode

S: Stop mode

-: Mode cannot be set

(1) Mode 0 Fig. 1 is a plan view of one embodiment of an inverted tape recorder of the present invention. During the first period, the inverted tape recorder 1 includes a code selection mechanism 2, a recording mode mechanism 2 ', a hook-detection mechanism 3 for preventing the erasing, a tape travel direction detection mechanism 4, and a rapid rewind mode displacement mechanism. Have (5) On the front side of the inverted tape recorder 1, an operation button 6, a pause button 6a, a feeding button 6b, a playback button 6c, a recording button 6d, a rewind button 6e operated in each mode is provided. And a stop button 6f are arranged. 7 is a forward-side winding reel, 8 is a reverse-side winding reel, 9 is a forward-side capstan, 10 is a reverse-side capstan, 11 is a forward-side flywheel, 12 is a reverse-side flywheel, and 13 is a tape cassette mounted.

1 is a mode selection lever, and the tip 14a of the recessed portions 14a to 14c for mode positioning of all O, U, and I modes is attached to the protruding pin 15a of the chassis base 15 at the tip. It is in the O mode setting position by fitting. 16 denotes a detection operation arm, which is in contact with an abutting portion 16a, in which the abutting prevention hook 13a in the reverse direction of the cassette 13 is not present in the abutting portion 16a. In this case, the hook detecting member 17 which slides in the direction of the arrow X ₁ or the tape running direction detecting lever 18 which is displaced in the direction of the arrow X ₁ when the tape running direction is in the reverse direction abuts. Therefore, the detection operation arm 16 is in contact with the hook detection member 17 or the detection lever 18 and rotates clockwise to detect the tape travel direction or the presence or absence of the hook 13a for preventing erasing. 19 has the engagement pin 19a at the front end and the engagement hole 19b to the side as a switching operation arm. 20 is rotationally supported by the support base 21 as a mode switching member, and is rotated clockwise on the reverse mode side by engagement with the engagement pin 19a of the switching operation arm 19. The mode selection mechanism 2 is roughly comprised by the said mode selection lever 14, the detection operation arm 16, the electric operation arm 19, and the mode switching member 20. As shown in FIG.

22 is a hook detection plate in the reverse direction, and is added in the direction of the arrow Y ₁ by the tension force of the coil spring 23, and abuts against the hook 13a of the cassette 13 as shown in FIG. The pin 22a is engaged with the concave portion 17a of the hook detection member 17 to lock the hook detection member 17. The anti-corrosion claw detection mechanism 3 is roughly constituted by the claw detection member 17 and the claw detection plate 22. 24 is a hook detection plate in the forward direction, abuts against the misalignment preventing hook 13b in the forward direction of the cassette 13, and is displaced in the direction of the arrow Y ₁ against the coil spring 86. The presence of the hook 13b is detected. The tape running direction detecting lever 18 has a T-shape, and an engaging portion of the tape running direction selection rotating lever 25 whose tip is rotated along the tape running direction with a solid-shaped engaging portion 18a. 25a), and are provided with sliding materials in the directions of arrows X ₁ and X ₂ . The tape traveling direction detection mechanism 4 is comprised by the said detection lever 18 and the transmission lever 25 substantially.

26 is a feed rewind mode detection lever and is added in the direction of arrow X ₂ by the tension force of the coil spring 85 at the front side of the base 15, and is provided as a sliding material in the direction of arrow X ₁ (X ₂ ). . In addition, the detection lever 28 penetrates into the convex portions 27a and 28a of the feed lever 27 or the rewind lever 28 and is displaced in the direction of the arrow X ₂ . 29 is a connecting lever, has an L shape, abuts the arm 29a with the detection lever 26, and switches the protruding pin 29c of the tip of the other arm 29b to the switching operation arm 19. Is engaged with the engagement hole 19b, and is supported by the shaft 15b of the chassis base 15. The rapid rewind mode displacement mechanism 5 is roughly constituted by the detection lever 26 and the connection lever 29 described above.

30 is a recording mode detection lever, and is provided as a sliding material in the direction of arrow X ₁ (X ₂ ) in front of the chassis base 15, and in the direction of arrow X ₁ by the tension force of the coil spring 31. The pin 30a is inserted into the concave portion 32a of the recording mode lever 32. 33 is a connecting member, has three protruding pins 33a to 33c, engages the front protruding pin 33a with the concave portion 30b of the recording mode detection lever 30, and also protrudes pin 33b. Is engaged with the engagement hole 34a at the tip of the switching rod 34 engaged with the protruding pin 14g on the lower surface side of the mode selection lever 14, so that the shaft 15c of the chassis base 15 can rotate freely. Supported. 35 is a manual reverse lever, which is free to rotate the lever 36 which is in contact with the tip, is supported by the shaft 15d and is added in the direction of the arrow Y ₁ by the tension force of the coil spring 37 to protrude the pin. Depends on (15e). The abutting lever 36 engages the long hole 36a with the protruding pin 33c of the connecting member, and is rotated in the direction of the arrow Y ₁ (Y ₂ ) by the rotation of the manual reverse lever 35. Move.

38 is a switching operation lever, the part 38a which the front-end | tip of the lever 36 which abuts on the front end, or the mode switching member 20 abuts, and the engagement part 38b on the opposite side to the abutment-part 38a. The rotation is freely supported by the shaft 15f. In addition, the switching operation lever 38 makes the engaging portion 38b abut on the pin 39a of the toothed gear 39 by clockwise rotation, thereby rotating the toothed gear 39 clockwise to be described later. As described above, the tape traveling direction is reversed. As shown in the figure, a part of the teeth is missing.

40 denotes a rotation lever for the recording mode. The engagement portion 40a on the pressing side abuts against the protruding pin 30c of the recording mode detecting lever 30, and the hook detecting member 17 is attached to the protruding pin 40b on the rear side. The coil spring 41 extended in between is latched.

42 is a mode switching solenoid, which is excited when the electrical signal of the tape end detection element 43 is supplied, and rotates the rotation lever 44 counterclockwise. 45 is a sliding lever, which is a one-way transmission clutch (not shown) at the lower side of the reels 7 and 8 with a rotational force in the tape winding direction of the forward side winding reel 7 or the reverse side winding reel 8 during tape travel. by arrows (X ₁₎ be added in the direction as shown by one-dot chain line, by a part (45a) in contact with the front end and to regulate the T-shaped arm 46 to the standby state, the portion (45a in contact with On the opposite side of), it has a protruding pin 45b which is in contact with the engaging portion 44a at the tip of the rotary lever 44. In addition, the T-shaped arm 46 has a pin 46a that engages with the cam 47a of the cam gear 47 at its distal end, and is engaged with the L-shaped lever 48 as a pin as shown. 48 is an L-shaped lever, and the T-shaped arm 46 is connected to the front side by a rotating material, and the other side has an engaging portion 48a engaged with the protruding pin 21a on the rear side of the support base 21, and the coil It rotates clockwise by the tension of the spring 49, and is supported by the rotating material by the shaft 15f of the chassis base 15. As shown in FIG.

50 is a lock plate, which locks the operation button 6 pressed in the direction of the arrow Y ₁ in the operating state, is added in the direction of the arrow X ₂ by the tension force of the coil spring 51, and the engaging portion ( 50a). 52 is a stop mode lever, and has a portion 52b which abuts by the movement in the direction of the arrow Y ₁ of the front engaging portion 52a and the rear mode switching member 20, and the coil spring 53. It is added to the direction of arrow Y ₂ by the tensile force of, and is installed as sliding material in the direction of arrow Y ₁ (Y ₂ ). 54 is a transmission member, has protruding pins 54a and 54b and is supported by the shaft 15g of the chassis base 15. The transmission member 54 engages the protruding pin 54a with the engaging portion 50a of the lock plate 50, and engages the protruding pin 54b with the engaging portion 52a of the stop mode lever 52. Then, it rotates by the operation of the stop mode lever 52 and moves the lock plate 50 in the direction of an arrow X ₁ .

And as shown in FIG. 3, the mode selection mechanism 2 which is a main part of the inverted tape recorder of this invention is assembled through the assembly member 55. As shown in FIG. The mode selection lever 14, the detection operation arm 16, the assembly member 55, and the switching operation arm 19 are freely supported by the shaft 15h on the chassis base 15 in a coaxial rotation. Since the assembly member 55 protrudes the engagement pins 55a and 55b at the top and the engagement pins 55c and 55d at the bottom, the engagement hole 55e for spring locking and the spring of an arc shape are recommended. It has a spring attachment part 55f.

Therefore, the mode selection mechanism 2 inserts the engagement member 55 and the engagement pins 55a and 55b into the arc-shaped engagement holes 19c and 19d of the switching operation arm 19, and detects it again. Engagement pins 55c of the assembly member 55 in the arcuate engagement holes 16b and 16c of the operation arm 16 and the arcuate engagement holes 14d and 143 of the mode selection lever 14. It attaches to the shaft 15h in the state which hit 55 d and was hit. In addition, the mode selection lever 14 is rotated in a clockwise direction by the tension of the upper protrusion pin 14f and the coil spring 56 held by the locking hole 55e of the assembly member 55. The detection operation arm 16 compresses the coil spring 57 by inserting the spring attachment portion 55f of the assembling member 55 in which the coil spring 57 is recommended to the upright engaging hole 16d. Is rotated in the counterclockwise direction by the resilience force, and the abutting portion 16a is in contact with the hook detecting member 17 and the tape travel direction detecting lever 18. The changeover operation arm 19 is rotated in the counterclockwise direction by the tension of the coil spring 58 held by the upper projection pin 19e and the engagement hole 55e of the assembly member 55, and the engagement pin 19a. Is rotated on the reverse side.

And as shown in FIG. 4, the mode switching member 20 has the engagement pin 19a of the switch operation arm 19 penetrated into the groove part 20a, and the arm 19 rotates clockwise. As shown by the solid line, the abutted portion 20b is rotated in the direction of the arrow A ₁ so as to be opposed to the abutted portion 52b of the stop mode lever 52, and positioned at the stop mode side. When 19) rotates in the clockwise direction, as shown by the broken line, the abutted portion 20c is rotated in the direction of the arrow A ₂ so as to face the abutted portion 38a of the switching operation lever 38 and reversed. It is located on the mode side.

60 is a drive motor, and the flywheel 11, 12 is rotationally driven through the belt 61 during 5th. In addition, the polys 64 and 65 are driven through the poly 62 and the belt 63 which rotate integrally with the winding-side flywheel 11. 66 is a head, but is shown in the surroundings again at 12 degrees, but is supported by the head holder 67, and has a head rotating gear 66a engaged with the fan gear 68 on the front side. 69 is a head reversing lever, which has a solid engagement portion 69a that engages the end portion 68a of the fan gear 68 on the front side, and the rotation is freely supported by the shaft 74. In addition, the head reversing lever 69 has a protruding pin 69b on the rear side, and the head reversing cam gear that engages the protruding pin 69b with the small gear 75 integral with the cogwheel 39. The cam groove 76a of 76 is pushed in. And the cogwheel between the small cogwheel 75 and the head reversing cam cogwheel 76 is 1: 2, and when the small cogwheel 75 rotates once, the cam cogwheel 76 rotates halfway.

The tape running direction selection lever 25 selects the tape winding drive system on the winding reel side that is in contact with the supply-side lever 79 by separating the abutting portion 25a from the tip side from the winding-side lever 78 and then moves the tape on the forward side. The running direction is set, and is coaxially supported with the head reversing lever 69 and connected to the head reversing lever 69 via the torsion spring 80. Further, the lever 25 is in contact with the portion 25b abutting on the arm 71 of the pinch roller 70 on the winding side and the portion 25c abutting on the arm 73 of the pinch roller 72 on the supply side. Have 81 is a head pushing lever, and the arm part 81a is in contact with the cam 82a of the toothed gear 82, and the arm part 81b is linked with the rotation of the toothed gear 82 at the time of the rapid rewind mode. Fix the head holder 67 and return the head base 83 in the direction of the arrow Y ₂ . 84 is an L-shaped lever, whose arm portion 84a is in contact with the cam 82b of the cogwheel 82, and the selection lever 25 is linked to the rotation of the cogwheel 82 in the rapid rewind mode. Rotate and displace only the neutral position.

When the regeneration button 6c is pressed in the direction of the arrow Y ₁ in the O mode, the lock plate 50 moves in the direction of the arrow X ₂ to operate the regeneration lever 90 integrated with the regeneration button 6c. At the same time as locking at the position, the motor switch (not shown) is turned ON to rotate the drive motor 60 and drive the flywheels 11 and 12. The head reversing lever 69 is rotated as shown in the counterclockwise direction by engagement with the cam groove 76a of the head reversing cam gear 76, and the pinch roller 72 on the supply side is moved to the capstan 10. ), And the pinch roller 70 on the winding side is pressed against the capstan 9 to the cassette 13 through the tape 13c to drive the tape 13c in the forward direction. In addition, the head 66 is moved in the arrow (Y ₁₎ direction together with the head base 83 and cheomjeop the tape (13c).

When the tape 13 is wound on the winding reel 7 side and forward reproduction ends, the tape end is detected by the detection element 43. As a result, the solenoid 42 is excited to pull the rotation lever 44 in a counterclockwise direction as shown by the two-dot chain line, and in conjunction with this, the sliding lever 45 is moved in the direction of the arrow X ₂ . Move it. Thus, the T-shaped arm 46 allows rotation in the counterclockwise direction by spaced apart from the abutting portion 45a of the sliding lever 45. The pin 46a of the T-shaped arm 46 engages with the cam 47a of the cam gear 47 to rotate the cam gear 47 in the counterclockwise direction. Rotate counterclockwise as shown by the dashed-dotted line. The L-shaped lever 48 moves the support base 21 in the direction of the arrow Y ₁ to abut the portion 20c of the mode switching member 20 against the switching operation lever 38. Thereby, the lever 38 rotates counterclockwise, hits the pin 39a of the toothed gear 39, and presses it, and rotates the toothed gear 39 clockwise. For this reason, in the cogwheel 39, the gear 39b misses | deviates from the opposing position with the drive cogwheel 91, and the cogwheel 39 and the drive cogwheel 91 mesh | engage, and again, the cogwheel 39b is carried out. It rotates once until it opposes this drive gear 91.

The cam 39c integrated with the engagement gear 39 rotates the head pressure lever 81 in a predetermined angle counterclockwise direction. Accordingly, the lever 81 moves the head base 83 in the direction of the arrow Y ₂ with the arm portion 81b, and the head base 83 is sent in the direction of the arrow Y ₂ to the magnetic head rotational position.

When the cam 39c of the gearing gear 39 rotates once, the lever 81 rotates clockwise, so that the head base 83 moves in the direction of the arrow Y ₁ . The head 66 returns to the recording and reproducing position in a state in which the head 66 is rotated halfway to the reverse side, and is attached to the tape 13c.

The cam gear 75 meshing with the small cogwheel 75 of the cogwheel 39 is approximately between one rotation of the cogwheel 39 in relation to the cogwheel ratio with the small cogwheel 75. Rotate 180 °. Therefore, the head reversing lever 69 in which the protruding pin 69b is inserted into the cam groove 76a of the cam gear 76 is rotated at the outer peripheral side with counterclockwise rotation of the cam gear 76. It moves wet to the cam groove 76a of the center side part, and rotates clockwise about the axis 74. As shown in FIG.

In addition, the engaging portion 69a of the head reversing lever 69 engages with the protruding pin 68a of the fan gear 68 and rotates the fan gear 68 in a clockwise direction so that the head together with the gear 66a. It rotates 66 in the head holder 67 to switch to reverse mode.

The tape running direction selection lever 25 rotates clockwise integrally with the lever 69 through the elastic force of the torsion spring 80. Therefore, the part 25a which abuts on the selection lever 25 spaces apart from the lever 79 on the reverse side, and abuts against the lever 78 on the forward side, and is pressed. The lever 78 rotates counterclockwise against the tension force of the spring 78a to separate the transmission gear 92 from the forward side reel 7 and the gear 93. In addition, the lever 79 on the reverse side, which has released the restriction of the engaging portion 25a, rotates counterclockwise by the tension of the spring 94, so that the transmission gear 95 is rotated to the reverse side winding reel 8; The meshing gear 96 and the gear 65a integrated with the poly 65 are engaged to form a reverse direction tape winding drive system.

In addition, the lever 25 makes the portion 25b abutted by the rotation in the clockwise direction abut the arm 71, rotates the arm 71 counterclockwise, and the portion 25c abuts. ) Is spaced apart from the arm 73. For this reason, the pinch roller 70 on the forward side is spaced apart from the capstan 9. The arm 73 on the reverse side rotates in the counterclockwise direction, and the pinch roller 72 is pressed against the capstan 10 on the reverse side through the magnetic tape 13c. Therefore, the tape 13c reproduced on the track on the reverse side by the head 66 is sent in the reverse direction by the rotation of the capstan 10 and the pinch roller 72, and wound on the reverse side winding reel 8. do. When the tape 13c is wound around the supply reel 8 and the regeneration mode in the reverse direction is finished, the tape end is detected again by the detection element 43, and the tape travel direction is switched from the forward direction to the reverse direction. By the same operation as in the above, it is automatically switched from the reverse direction to the forward direction again. Therefore, in the playback mode in the O mode, the forward direction and the reverse direction are repeatedly played back.

Next, in the O mode, when the recording button 6d is pressed in the direction of the arrow Y ₁ to operate in the recording mode, the recording mode lever 32 simultaneously with the reproduction mode lever 90 as shown in FIG. Locked by the lock plate 50 at the operation position, the recording mode detection lever 30 is moved in the direction of the arrow X ₂ . The lever 30 rotates the connecting member 33 clockwise, and moves the switching rod 34 in the direction of the arrow Y ₂ . As a result, the mode selection lever 14 is mechanically interlocked by the movement of the rod 34 to rotate in the direction of the arrow B. The mode selection lever 14 is inserted into the pin 15a to force U from the O mode. The mode is switched. Therefore, even when the operation is performed from the O mode to the recording mode, the operation mode is automatically switched to the recording mode of the U mode. As will be described later, the malfunction of repeatedly recording on the forward and reverse tape tracks recorded once is prevented.

In addition, in the case of operating in the recording mode in the O mode and without the erroneous catch 13a in the reverse direction, as shown in FIG. 7 by the action of the lever 30 and the rod 34 as described above, U The mode is automatically switched to the absence of the erasing claw 13a in the mode, and the stop mode is simultaneously performed with the tape end detection in the forward direction as described later.

In addition, when operating in the feed mode and the rewind mode in the O mode, as illustrated in FIG. 8, for example, the feeding mode lever 27 is pressed by pressing the feeding button 6b in the direction of the arrow Y ₁ . Is locked by the lock plate 50 at the operation position.

In this way, the feeding and rewinding mode detection lever 26 moves in the direction of the arrow X ₁ . Therefore, the connection lever 29 is rotated counterclockwise to rotate only the dark operation arm 19 of the mode selection mechanism 2 clockwise. That is, the mode switching member 20 is rotated on the stop mode side, and the tape travel direction is in the direction of the arrow Y ₁ as in the case where the tape travel direction is switched by the tape end detection in either the forward direction or the lip direction. It becomes contact with a portion (20b) which abuts with the base 21 to move the portions (52b) in contact with the stop mode lever 52 to move the stop mode lever 52 in the arrow (Y ₁₎ direction . Accordingly, the stop mode lever 52 moves the lock plate 50 in the direction of the arrow X ₁ through the transmission member 54 by the movement in the direction of the arrow Y ₁ to operate the position of the feeding mode lever 27. Release the stop at and return the feeding button 6b to its original position. In addition, the locking of the moving lever (not shown) for moving the head holder 67 in the direction of the arrow Y ₁ in conjunction with the movement of the lock plate 50 in the direction of the arrow X ₁ is released, thereby disabling the head 66 Returns to the direction of the arrow Y ₁ with the head base 83 to reach the stop mode position.

In addition, although the feeding mode has been described in the above description, the rewinding mode and the so-called first mode in which the recorded place is quickly sent and found operate in the same manner as the feeding mode. The feeding and rewinding modes are not limited to the O mode, and in the U and I modes, the tape travel direction is switched to the stop mode at the same time as the tape end detection regardless of the forward direction and the reverse direction as described above.

In addition, in the O mode, the lever 14 is operated in the regeneration mode or the recording mode, the feeding and the rewinding mode, and is operated in the U mode and the I mode, and in the U mode and the I mode. Mode, switch from U mode to I mode or from I mode to U mode. However, in the recording mode, the mode is changed from U mode to O mode or from I mode to U mode. However, in the case of the recording mode, it is possible to switch from the U mode to the I mode or from the I mode to the U mode. However, in the case of the switching from the U mode to the O mode, as described above, the lever 14 is connected to the rod 34. Since the rotation in the direction of the arrow Y ₂ rotates from the O mode position to the U mode position, the switching operation cannot be performed and the erroneous operation is surely prevented.

(2) U mode

As shown in FIG. 9, when the mode selection lever 14 is rotated in the direction of the arrow B to fit the pin 14b to the pin 15a, the mode selection mechanism U mode is set. When the regeneration button 6c is pressed in the direction of the arrow Y ₁ and operated in the regeneration mode in the forward direction, the tape 13c is wound around the forward side reel 7. When the tape 13c is wound and playback in the forward direction ends and the tape end is detected by the tape end detection element 43, the mode switching member rotates on the mode switching side in the same manner as in the reproduction mode of the O mode. The shift operation lever 38 rotates counterclockwise to rotate the head 66 counterclockwise by shifting the direction of arrow Y _{1 in} (20), and simultaneously switches the tape traveling drive system to the reverse direction side. Therefore, as shown in FIG. 1, the tape travel direction selection rotation lever 25 is rotated clockwise to move the tape travel direction detection lever 18 in the direction of the arrow X ₁ so that the tape travel direction is the reverse direction. The lever 18 rotates the detection operation arm 16 clockwise to detect that it is.

Since the mode selection lever 14 is in the U mode position, when the arm 16 rotates clockwise, the switching operation arm 19 is engaged by engagement with the protruding pins 55a to 55d of the assembly member 55. Rotate clockwise. Therefore, the mode switching member 20 is rotated on the side of the stop mode so that the part 20b abuts against the part 52b of the stop mode lever 52.

When the tape 13c is driven and wound in the reverse direction by the rotation of the reverse side winding reel 8 and the tape end is detected, the base 21 moves in the direction of the arrow Y _{1 in the} same manner as described above. As shown in FIG. 10, the mode switching member 20 located on the stop mode side moves the stop mode lever 52 in the direction of the arrow Y ₁ with the movement of the base 21, and the transfer member ( The lock plate 50 is moved in the direction of the arrow X ₁ through 54 to cancel the regeneration mode and switch to the stop mode. That is, at the end of forward playback, the tape running direction is switched to the reverse direction, the head 66 is rotated halfway to the reverse side, and the stop playback is completed at the end of reverse playback.

Next, a description will be given of the case where there is a claw 13a for preventing the erasure in the reverse travel direction by operating in the recording mode in the U mode. When the reproduction button 6c and the recording button 6d are pressed to the recording mode in the forward direction, the lever 30 moves in the direction of the arrow X ₂ to rotate the rotation lever 40 clockwise. However, the hook detection plate 22, an arrow (Y _1), so that movement in the direction to detect that the hook (13a), hook detection member 17 is X (by engagement of the pin (22a) arrow ₁ Limit movement in the

For this reason, the displacement of the rotary lever 40 is absorbed by the tension of the coil spring 41. That is, the mode selection mechanism 2 performs the same operation as in the case of the reproduction mode of the U mode described above, and when the tape 13c is wound in the forward direction and the recording mode in the forward direction is terminated, the tape running direction is automatically reversed. However, the tape 13c is wound in the reverse direction so that the recording mode ends, and the mode changes to the stop mode.

In addition, a description will be given of the case where there is no erroneous catch 13a in the reverse direction in the recording mode in the U mode. As shown in FIG. 7, when the regeneration button 6c and the recording button 6d are pressed, the rotary lever 40 is rotated clockwise through the lever 30 as described above. However, since there is no hook 13a, the hook detection plate 22 is moving in the direction of the arrow Y ₂ , and the pin 22a is spaced apart from the pin 17a to allow the hook detection member 17 to move. do. Accordingly, the hook detecting member 17 moves in the direction of the arrow X ₁ by the tension force of the coil spring 41 by overcoming the coil spring to which the hook detecting member 17 is attached by the displacement of the rotary lever 40. .

For this reason, the arm 16 of the mode selection mechanism 2 is rotated clockwise, and the mode switching member 20 is transmitted through the arm 19 in the same manner as the tape travel direction of the regeneration mode in the U mode in the reverse direction. Is rotated to the stop mode side.

That is, in the forward recording mode, the tape 13c is wound on the forward side winding reel 7 to detect the tape end, and the mode switching member 20 moves the stop mode lever 52 in the direction of the arrow Y ₁ . Move to the stop mode. Therefore, the reverse direction is wrong in the tape track, thereby preventing malfunction of newly recording.

(3) I mode

As shown in FIG. 11, when the mode selection lever 14 is rotated in the direction of the arrow B to fit the pin 14c to the pin 15a, the mode selection mechanism 2 is set to the I mode. . Since the mode selection lever 14 is in the I mode position, the switching operation arm 19 rotates clockwise by engagement with the protruding pins 55a and 55d of the assembly member 55. In addition, the detection operation arm 16 is interlocked with the lever 14 to the position to detect that there is an anti-corrosion hook 13a in the reverse direction together with the arm 19, or that the tape travel direction is in the reverse direction. Direction and spaced apart from the hook detection member 17 and lever 18. For this reason, simultaneously with the setting of the I mode by the lever 14, the mode switching member 20 rotates to the stop mode side.

When the regeneration button 60 is pressed and operated in the regeneration mode in the forward direction, the tape 13c is wound around the take-up reel 7 and travels in the forward direction. When playback in the forward direction ends and the tape end is detected by the detection element 43, the mode switching member 20 moves the stop mode lever 52 in the same manner as when the playback mode in the reverse direction of the U mode is terminated. Y ₁ ) direction. Therefore, at the same time as the tape end detection, the lever 52 moves the lock plate 50 in the direction of the arrow X ₁ through the transfer member 54 to switch to the stop mode. In the reverse mode regeneration mode in the I mode, since the switch mode member 20 is located on the stop mode side with the I mode setting on the lever 14, the tape end detection in the reverse direction is the same as in the forward direction regeneration. Will enter the stop mode.

In the I mode, the mode is not limited to the playback mode in the forward direction and the reverse direction, but in the recording mode or the fast rewind mode, and in the first mode, the tape mode is detected in the stop mode despite the tape travel direction.

If the tape travel is switched from the forward direction to the reverse direction or from the reverse direction to the forward direction before the operation in the playback mode or the playback mode of each of the above modes (O mode, U mode, I mode), , Rotate the manual reverse lever 35 in the direction of the arrow (c). The abutting lever 36 interlocking with the lever 35 moves in the direction of the arrow Y ₁ and abuts against the abutting portion 38a of the switching actuation lever 38, and the lever 38 is counterclockwise. Direction, the tape running direction is reversed in the same operation as the tape end detection in the regeneration mode of the above O mode.

In the playback mode, the feed mode, and the rewind mode, the tape travel direction is switched by the operation of the lever 35 in the forward direction and the reverse direction, but in the recording mode, as shown in FIG. By operating 6d), the lever 30 moves in the direction of the arrow X ₂ , and the lever 36, which is in contact with the connecting member 33, rotates counterclockwise. For this reason, the lever 36 which abuts in the forward direction of a recording mode abuts on the engaging part 21b of the base 21, and the mode switching member 20 of the mode switching side is operated by the lever 35 operation. Is in contact with the switching operation lever 38 to switch the tape travel direction. In addition, in the reverse direction of the recording mode and in the forward direction of the recording mode, when there is no erroneous catch 13a in the recording mode, the mode switching member 20 is located on the stop mode side, even if the lever 35 is operated incorrectly. The tape running direction is not changed and the stop mode is entered.

As described above, the reversible tape recorder of the present invention repeats the forward direction and the reverse direction tape travel direction with each other and at the same time repeats the heads, and inverts the tape travel direction only from the forward direction to the reverse direction while the head is reversed. A mode selection mechanism for selecting any one of the inversion mode for inverting and the one-way mode in which the tape end makes the stop mode when the tape is driven in one direction, and the recording mode mechanism for setting the recording mode. When the recording mode mechanism is operated while the repetition mode is selected, the mode selection mechanism is configured so that the mode selection mechanism can be forcibly switched from the repetitive mode to the inverted mode by mechanically interlocking with the recording mode setting operation of the recording mode mechanism. As shown in O mode The recording mode is detected and the electrical circuit is not switched from the recording mode of the O mode to the recording mode of the U mode, but is operated simultaneously with the recording mode operation by the mechanical engagement between the mode selection mechanism and the recording mode mechanism. In order to switch to the recording mode, expensive electrical components such as switches are unnecessary, whereby the apparatus can be manufactured at low cost. Furthermore, in the recording mode, the setting of the O mode is changed to the U mode by the engagement of the recording mode mechanism. It is possible to reliably prevent the misoperation of switching from U mode to O mode at the same time as switching automatically. Therefore, even if the operator incorrectly selects the recording mode in O mode, the tape running direction is changed only from the forward direction to the reverse direction. Inverts and inverts the head at the same time, and then reverses when detecting the tape end in reverse direction. And certainly not in the stop mode, by an erroneous operation of the operator correction by the mechanical action has a characteristic such that the normal to form a recording mode.

In addition, the inverted tape recorder according to the present invention repeats the tape running direction between the forward direction and the reverse direction, and simultaneously repeats the heads, and inverts the tape running direction only in the reverse direction from the forward direction. A mode selection mechanism for selecting one of the inversion mode for reversing the direction and the one-way mode in which the tape end makes the stop mode when the tape is driven in one direction, and the function of the tape running direction being displaced by either the forward direction or the reverse direction. And a reverse-detection hook detection mechanism for detecting the presence or absence of a reverse-release hook in the reverse direction, and a feed rewind mode displacement mechanism for displacing in response to whether the tape traveling state is the feed mode or the rewind mode. Corresponding displacement positions and the respective In response to the combination of the mating contact states, when the tape is finished and the tape ends, the head is inverted to reverse the driving direction and the reverse mode or the stop mode for stopping the tape. Since it is installed, the machine does not detect the mode selection tape travel direction, the presence or absence of a claw on the river side, the feeding, the rewind mode, and the like by the mechanical displacement operation of each mechanism. It is possible to realize the operation such as inverting the head or stopping the tape running at the end of the tape in the proper lock, and the device can be manufactured at low cost since no electrical parts such as switches are required. Hook for prevention of misrepair in reproduction mode, forward reproduction of U mode, reverse direction of recording mode of U mode Only when it is present, it automatically switches to reverse mode when the tape end is detected, and in other modes, it switches to the stop mode when the tape end is detected. It can prevent accidents surely.

Claims (2)

In the inverted tape recorder 1 equipped with a mechanism for switching the tape 13c in the forward direction and the reverse direction, the tape running directions between the forward direction and the reverse direction are alternately repeated, and the heads 6 are alternated. In the repetitive mode for reversing the direction, the reversing mode for reversing the tape running direction only in the reverse direction from the forward direction, the reversing mode for reversing the head 66, and the one-way mode for turning the tape end to the stop mode when driving the tape 13c in one direction Mode selection mechanisms 2 (14, 16, 19, 20) for selecting any one of the modes; top-detector mechanisms 3 (17, 22) for preventing erasure setting the recording mode and contacting the mode selection mechanism (2); The tape travel direction detection mechanism 4 (18, 25) which detects the tape travel direction in the forward direction and the reverse direction and is in contact with the mode selection mechanism 2, and the tape travel state is the feed mode. The feed recommendation mode shift mechanisms 5 (26, 29) to set the support recommendation mode and to be connected to the mode selection mechanism 2, and a tape end detection element 43 for detecting the tape end in the forward direction and the reverse direction. The mode switching member 20 of the mode selection mechanism 2 is set to either the reverse mode side or the stop mode side in engagement with the mechanisms according to the respective modes, and the tape end After detecting the tape end by the detecting element 43, the head 66 is inverted to reverse the tape travel direction, and the stop mode for stopping the tape travel is configured. Reversible tape recorder (1). 2. The mode selection mechanism (2) according to claim 1, wherein when the recording mode mechanism (2 ') is operated in the state in which the repeat mode is selected by the mode selection mechanism (2). Inverted tape recorder (1), characterized in that configured to be forcibly switched from the repeat mode to the invert mode by mechanically interlocking with the recording mode setting operation.

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