KR0124203Y1 - Tape recorder - Google Patents

Abstract

An object of the present invention is to provide a tape recorder with a simple configuration in which the running mode of the tape recorder is automatically stopped only when the tape end is reached in the playback mode, and the automatic stop mechanism is not moved in the high speed transfer / rewind mode. will be.

The constitution of the present invention is that the constant speed feed gear (rotating carrier for constant feed) 25 and the tape winding shaft 22 rotate through the friction transfer mechanism 51a in the constant speed traveling mode, and the speed is constant even when the tape ends are reached. The feed gear 25 is continuously rotated to start the automatic stop mechanism. When the tape end is reached in the tape travel mode, the constant speed feed gear 25 is also stopped along with the reel shaft 22, and the automatic stop mechanism is started. It doesn't work.

Description

Tape recorder

1 is a plan view showing a stopped state of a tape recorder provided with an automatic stop device according to a first embodiment of the present invention;

2 is a plan view showing a playback state of the tape recorder of the present invention.

3 is an operation explanatory diagram of the automatic stop device of the tape recorder of the present invention.

4 is a view showing a cross-sectional structure of the reel shaft portion.

5 is a view of the same shape as in FIG. 3 showing a second embodiment of the automatic stop of the tape recorder of the present invention.

6 is a view of the same shape as FIG. 3 showing a third embodiment of the present invention.

* Explanation of symbols for main parts of the drawings

12: regeneration operation member 17: locking member

22: winding side reel shaft (tape winding shaft)

24: Reel Gear for High Speed Feeding (Rotator for Tape High Speed Feeding)

25: Reel Gear for Constant Speed Feed (Rotator for Tape Constant Speed Feed)

34,34 ', 34: eccentric cam 35,35', 35: control material

37,37 ', 37: Pin (part in contact with cam sliding joint)

39,39 ', 39: Holding member 42,42', 42: Pushing protrusion (cam mechanism)

51: friction transfer member 51a: friction transfer means

The present invention relates to a tape recorder in which the automatic stop mechanism does not move during FF / REW operation.

In a tape recorder equipped with an automatic stop mechanism, there is a practical application publication No. 63-2226 as an example of a conventional technique in which the automatic stop mechanism does not move during the FF / REW operation.

This allows the rotation of the motor 10 to pass through the rotating body (reel gear) 7 and the frictional transmission mechanism 8 to the reel receiving (tape winding shaft) 11 and to be engaged with the rotating body. The motive is formed, and the operation member 11 is rotatably mounted on the chassis. During the regeneration operation, while the reel receiver 1 rotates through the detection member 3 fitted around the lower end of the tape winding shaft, the operating member 11 is given a rotational force in a predetermined direction to be engaged with the operating member. When the reel stops at the end of the tape and avoids the projection, the engaging member is brought into contact with the operating member so that the operating member is greatly rotated by the rotational force of the rotating body to release the jam at the pushing position of the regeneration operation member. This is the basic configuration of the automatic stop mechanism.

As the high-speed feed or the rewind operation lever is pushed, the operation member is linearly moved to a position independent of the engaging projection, so that the automatic stop mechanism does not move during the FF / REW operation.

However, in such a conventional configuration, the operating member 11 is mounted so as to be rotatable and linearly moveable with respect to the chassis, and this is elastically supported in one direction by the springs 19 so as to have engagement with the engagement projections, and high-speed transfer. Alternatively, when the rewind operation lever is pushed in, the operation member is linearly moved with respect to the spring 19 so as to break the engagement with the engagement projection, which causes a problem of complicated configuration.

As described above, it can be denied that in the tape recorder, the automatic stop mechanism functions only in the constant speed driving mode of the tape and does not act in the high speed transfer mode of the tape, which causes the complexity of the entire tape recorder configuration. There was no.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a simple tape recorder having a configuration capable of reliably stopping the operation of the tape recorder by tape end detection only in the constant speed driving mode of the tape. It is.

In order to achieve the above object, the present invention provides a tape winding shaft which is driven by a tape driving motor and a push protrusion which is driven by the tape driving motor when the tape is driven and idlely rotates the rotation of the tape winding shaft. A tape having a driving mode release unit for aligning and displacing the driving mode of the tape by displacing under the rotational force of the motor, and a holding member for holding the release member in a position not to be engaged with the pressing projection only when the tape winding shaft is rotated. In the recorder, the tape delivery shaft is formed coaxially with the tape high speed conveying rotary carrier, and the push protrusion is formed on the tape constant speed rotary rotating carrier which is rotated and driven by the tape drive motor. The rotational force of the rotating carrier for constant speed transfer is It is to be transmitted to the high-speed transfer rotational transmission by a predetermined amount, and the rotational force of the tape drive motor is transmitted to the constant-speed rotational transmission during the constant speed transfer operation of the tape and the rotational force of the tape drive motor during the high-speed transfer operation of the tape It characterized in that to form a rotation transfer path switching mechanism for transmitting to the high-speed transfer rotation carrier.

In this configuration, in the constant speed driving mode of the tape, the rotational force of the motor is applied to the rotating carrier for constant velocity feed of the tape, and the high speed tape rotating carrier and the tape winding shaft are rotated through the friction transfer mechanism, so that the tape is wound by the end of the tape. Even if the rotation of the shaft stops, the rotating carrier for constant velocity feed continues to rotate. As a result, the traveling mode releasing member is displaced by the pressing projection that revolves with the tape constant speed rotational transfer member, and the automatic stop mechanism is activated.

On the other hand, in the high-speed feed running mode of the tape, the rotational force of the motor is given to the high-speed feed rotating carrier, and the rotational feed body for constant speed feed rotates through the friction transfer mechanism in accordance with the rotation of the high-speed feed rotating carrier. Therefore, when the rotation of the tape winding shaft is stopped by the tape end, the idle projection of the pressing protrusion is also stopped accordingly, so that the traveling mode releasing member is not displaced by the pressing protrusion, and thus the automatic stop mechanism is not activated. .

Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 6.

FIG. 1 is a plan view of the tape recorder in a stopped state according to the first embodiment of the present invention, and FIG. 2 is a plan view of the same playback state.

In the drawings, reference numeral 10 denotes a tape recorder substrate (hereinafter referred to as a short substrate), and on the lower surface thereof, each operation member 11 for recording, playback, rewinding, high-speed transfer device, and pause (pause) in the order from left to right. 12, 13, 14, 15, and 16 are arranged so that the reciprocating motion is free in the directions of arrows A and B, respectively.

Each of these operation members 11-16 is given the elastic return force to the arrow A direction by the return spring which is not shown in figure. By operating each of these operating members 11 to 16 in the direction indicated by the arrow B against the elastic return force of the return spring, the respective modes of recording, playback, rewinding, high speed transfer, stop and pause are set.

On the other hand, the locking member 17 is mounted on the substrate 10 so as to enable reciprocating operation in a direction orthogonal to the moving direction of each of the operation members 11 to 16, that is, arrows C and D directions. The locking member 17 has an inclined surface 18 and a locking jaw portion 19 on one end side (left end side in the drawing) and an engaging portion 20 on the other end side (right end side in the drawing).

The regeneration operation member 12 which is pushed and operated is a position at which the engaging piece 21 is pushed by engaging or engaging the engaging jaw portion 19 through the inclined surface 18 of the engaging member 17 (regeneration). Location).

In addition, the locking member 17 is elastically supported in a return operation direction (arrow C direction) by a return spring (not shown).

The winding side reel shaft (tape winding shaft) 22 and the rewinding side reel shaft 23 are rotatably arranged on the upper surface of the substrate 10. On the lower end of the winding reel shaft 22, a reel gear (high speed rotary transfer carrier) 24 for high speed feed (tape feed speed in high speed feed and rewind mode) can be rotated coaxially as shown in FIG. Is installed.

That is, the reel gear 24 for high speed transfer which has a center cylinder part is rotatably fitted in the support shaft 50 which protruded in the board | substrate 10. As shown in FIG. On the upper surface of the high speed reel gear 24, a friction transmission member 51 made of felt or the like is provided. The friction transfer member 51 is sandwiched between the high speed reel gear 24 on the upper surface of the high speed reel gear 24 and fitted to the center cylinder of the high speed reel gear 24 for constant speed reel gears (rotary transfer body for constant speed feed). 25 is rotatably provided.

The winding-side reel shaft 22 described above is integrated with the upper end of the center cylinder of the high speed reel gear 24. In addition, the coil spring 52 is assembled to the hole provided in the lower surface of this winding-side reel shaft 22, and the said coil spring 52 makes the said constant speed reel gear 25 friction transfer member 51. Moreover, as shown in FIG. It is press-contacted to the upper surface of the reel gear 24 for high speed transfer through the slit.

Then, the constant speed reel gear 25 and the high speed reel gear 24 are rotated and transmitted through the friction member 51, where the friction transmission mechanism 51a is configured.

In addition, the rotational transmission gear 32 which will be described later is always engaged with the reel gear 25 for constant speed transfer.

The high speed rotary gear 26 is engaged with the intermediate gear 27 so as to be caught or disengaged. This intermediate gear 27 is rotatably supported by the rotational arm 29 which the shaft 28 was rotatably supported by the board | substrate 10 in the arrow E, F direction.

Then, when the high speed feed operation member 14 is pushed and operated in the direction of arrow B, the intermediate gear 27 rotates in the high speed rotary gear as the rotation arm 29 rotates in the direction of arrow E at the neutral position shown in FIG. To 26.

Further, when the rewind operation member 13 is pushed in the direction of arrow B to operate, the pivot arm 29 rotates in the direction of arrow F at the neutral position shown in FIG. 1, whereby the intermediate gear 27 is rewind side reel shaft ( The pivoting arm 29 is in the neutral position when the fast-feeding reel gear 30 rotatably installed at the lower end of 23) is in a high-speed feed, or rewind mode, which can be engaged or pulled out.

On the other hand, the rotating shaft 27a of the intermediate gear 27 is connected to the rotational force of the tape drive motor M through a power transmission system made of a pulley, an endless belt, or the like, which is not shown, and by this motor M, the intermediate gear ( 27) rotates. This power train has a system separate from the power train that transmits the rotational force of the motor to a capstan (not shown).

The small diameter gear 31 is rotatably provided in the center of the upper surface of this intermediate gear 27 integrally.

The small transmission gear 31 is engaged with the rotation transmission gear 32 so as to be caught or disengaged. The rotation transmission gear 32 is rotatably supported on one end surface of the gear plate 33 rotatably mounted in the arrow G and H directions about the winding side reel shaft 22.

Then, when the regeneration operation member 12 is pushed in the direction indicated by the arrow B, a head mounting plate (not shown) (not shown) reaches the regeneration position in connection with this. The head plate attaches and rotates the gear plate 33 in the direction of the arrow G so that the rotation transmission gear 32 meshes with the small diameter gear 31.

That is, when the regeneration operation member 12 is pushed in and operated, the rotation of the small-diameter gear 31 is transmitted from the rotation transfer gear 32 to the constant speed transfer gear 25 in connection with this, and this constant speed reel gear The rotation of the 24 is transmitted to the constant speed reel gear 24 through the friction transfer member 51, so that the winding side reel shaft 22 is rotated.

In addition, when the high speed feed operation member 14 is pushed in and operated, the rotation of the intermediate gear 27 is transmitted to the high speed feed reel gear 24 via the high speed rotary gear 26, and the winding side reel shaft 22 is rotated.

On the other hand, an eccentric cam 34 having an outer circumferential surface as a cam surface is rotatably provided on the upper surface of the constant speed reel gear 25. The constant speed reel gear 25, that is, the reel stand, also serves as a cam gear. On the cam surface of the eccentric cam 34, the cam sliding joint part of the control material 35 is slid-bonded so that joining and detachment are possible. Moreover, the press surface 42 mentioned later is provided in this cam surface.

The control member 35, which is a travel mode canceling member for releasing the tape travel mode, is rotatably mounted on the substrate 10 about the axis 36. As shown in FIG. One end side of the control member 35 is bifurcated, and the pin 37 protruding from the distal end surface of the one side portion serves as an abutting portion in contact with the cam sliding joint portion and the pressing protrusion 42.

The engaging projection portion 38 protruding from the lower surface of the other end side of the control member 35 is hooked so as to be abutted and detached to the one end edge of the engaging portion 20 of the engaging member 17 described above. Fit.

And while the pin 37 which is the cam sliding joint part of the control material 35 is slidingly connected to the cam surface of the eccentric cam 34, it will follow this rotation by the counterclockwise rotation of the reel gear 25 for constant speed feeds. By the action of the eccentric cam 34 to rotate integrally with the control member 35 receives the action in the counterclockwise rotation direction around the axis (36).

The holding member 39 is provided above the eccentric cam 34 and is provided on the winding side reel shaft 22. The holding member 39 is provided by protruding the pressing piece 41 in the radial direction toward the center of the outer periphery of the C-shaped fitting portion 40. And the fitting part 40 is frictionally fitted to the outer periphery of the winding side reel shaft 22. As shown in FIG. When the winding side reel shaft 22 is rotating in the counterclockwise rotation direction, the rotation detecting member 39 presses the other side of the one end side of the control member 35, so that the control member 35 The elastic support in the clockwise direction is given. By this elastic support, the pin 37 of the eccentric cam 34 is held in a position where it is not engaged with the push projection 42.

The control member 35 swings about the shaft 36 in accordance with the rotation of the winding side reel shaft 22 by the elastic support force by the holding member 39 and the eccentric action by the eccentric cam 34.

Moreover, when rotation of the winding side reel shaft 22 stops, the rotational force in the clockwise direction with respect to the control member 35 by the rotation detecting member 39 is given. As a result, in this control part 35, the pin 37 which is the cam sliding junction part sags to the position farthest from the center of the winding side reel shaft 22 of the cam surface of the eccentric cam 34. As shown in FIG.

At the position where the pin 37 sags on the upper surface of the reel gear 25 for constant speed feed, a push protrusion (cam mechanism) 42 abutting against the pin 37 protrudes.

Then, in the state where the pressing projection 42 abuts against the pin 37 of the control member 35, the control member 35 is rotated in half as the constant speed reel gear 25 continues to rotate in the counterclockwise rotation direction. It rotates in the clockwise direction to return the locking member 17 in the direction of arrow D to face the elastic bearing force of the return spring.

Next, the operation of the automatic stop device of the tape recorder configured as described above will be described with reference to FIGS.

In the stationary state shown in FIG. 1, when the regeneration operation member 12 is pushed and operated in the direction of arrow B, the locking piece 21 passes through the inclined surface 18 of the locking member 17 to operate. ), The regeneration operation member 12 is engaged to the pushed position (regeneration position). As the regeneration operation member 12 is caught in the pushing position, the head attachment plate (not shown) moves in the direction of arrow B to reach the regeneration position in association with the regeneration operation member 12.

As the head mounting plate reaches the regeneration position, the gear plate 33 interlocks with the head mounting plate in the direction of the arrow G so that the rotational transmission gear 32 meshes with the small-diameter gear 31 and the motor. Is energized to enter the regeneration mode as shown in FIGS. 2 and 3 (a).

In this regeneration mode, the rotation of the motor M is wound around the reel shaft 22 through the small-diameter gear 31, the rotation transmission gear 32, the constant speed reel gear 25 and the friction transfer member 51 in this order. Is passed on. The winding side reel shaft 22 rotates at a constant speed in the counterclockwise direction along with the constant speed reel gear 25. As a result, the tape runs at a constant speed from the rewinding side reel shaft 23 side to the winding side reel shaft 22 side, and a reproducing operation is performed.

In this regeneration mode, the control member 35 swings about the shaft 36 by the action of the eccentric cap 34 and the holding member 39 which rotate integrally with the constant speed reel gear 25. Exercise.

Due to this swing, the pin 37, which is an abutting portion of the control member 35, is held in a position not engaged with the push projection 42 which rotates integrally with the reel gear 25 for constant speed transfer. For this reason, the latch to the pushing position by the locking member 17 of the regeneration operation member 12 is not released.

In this regeneration mode, when the tape is wound on all the winding reel shafts 22 side, that is, when the tape ends, the winding reel shaft 22 is stopped, and the constant speed reel gear 25 is a high speed reel. The gear 24 is slipped via the friction transmission member 51. As a result, in the state where the winding side reel shaft 22 is stopped rotating, only the constant speed reel gear 25 is rotated.

Then, the elastic bearing force in the clockwise rotation direction with respect to the control member 35 by the holding member 39 is not applied. Therefore, the control member 35 stops the rocking motion at the position where the pin 37 is slid to the position where the distance from the center of the winding reel shaft 22 of the eccentric cam 34 is farthest, and the position thereof is stopped. In the state shown in FIG.

After this state, the constant speed reel gear 25 is rotated in the counterclockwise direction again, and as shown by the solid line of FIG. 3 (c), the push protrusion 42 causes the pin 37 of the control member 35 to be rotated. A).

Even after the abutment, the constant speed reel gear 25 is rotated in the counterclockwise direction again, so that the pin 37 is displaced by the pressing surface 42 and the pin 37 is displaced. Rotate counterclockwise around 36).

In response to this rotation, the locking member 17 moves in the direction of the arrow D, and the locking member 17 is brought to a state indicated by the double-dot chain line in FIG.

In accordance with the return operation of the reproducing operation member 12, the head mounting plate, the locking member 17, the gear plate 33, and the like also return to the initial position shown in FIG. 1 and the function of the tape recorder automatically stops.

In the stationary state shown in FIG. 1, when the high speed feed operation member 14 is pushed and operated in the arrow B direction, the rotating arm 29 rotates in the clockwise direction in connection with this and the intermediate gear ( 27 is engaged with the high speed rotary gear 26 and energized by the motor to enter the high speed transfer mode.

In this high speed transfer mode, the rotation of the motor is transmitted to the winding side reel shaft 22 through the intermediate gear 27, the high speed rotary gear 26, the high speed reel gear 24, and the friction transfer member 51. . The winding reel shaft 22 rotates at high speed together with the high speed reel gear 24.

As a result, the tape is driven to the reel shaft 23 side from the rewinding side to the winding side reel shaft 22 side, and a high speed transfer operation is performed.

In the stationary state shown in FIG. 1, when the rewind operation member 13 is pushed and operated in the direction of arrow B, the rotating arm 29 rotates in the counterclockwise direction in connection with this and the intermediate gear ( 27) meshes with the high-speed transfer reel gear 30 of the rewind side reel shaft 23, and energizes the motor to enter the rewind mode.

In this rewind mode, the rotation of the motor is transmitted to the rewinding side reel shaft 23 via the intermediate gear and the high speed reel gear 30. The rewinding side reel shaft 23 rotates at high speed together with the high speed reel gear 30.

As a result, the tape is driven at high speed from the winding side reel shaft 22 to the rewinding side reel shaft 23, and a rewinding operation is performed.

When the tape end is reached in such a high-speed feed / rewind mode, the rotation of the reel shaft 22 on the winding side stops at that time, and the reel gear 25 for constant speed feed stops rotating at the same time. That is, in this mode, only the rotation of the high speed reel gear 24 is given to the high speed reel gear 25 via the friction transfer member 51, so that the winding side reel shaft 22, i.e. As the reel gear 24 stops rotating, the rotation of the high speed reel gear 25 also stops.

Therefore, in this case, since the pin 37 of the control member 35 is not pressed by the pusher 42, the locking member 17 is locked to the position where the regeneration operation member 12 is pushed. It is not released. Therefore, even if the tape end is reached in the fast forward / rewind mode, the function of the tape recorder does not automatically stop.

Next, a second embodiment of the present invention will be described with reference to FIG. Incidentally, in the present embodiment, the same parts as those in the above-described first embodiment will be described with the same reference numerals in the drawings.

The configuration of the eccentric cam, the position of the pin of the control member, and the position of the pin of the control member differ from those of the first embodiment. That is, in this embodiment, an eccentric cam 34 'having an inner circumferential surface as the cam surface is provided on the upper surface of the reel gear 25 for constant speed transfer.

Moreover, the pin 37 'is provided in the lower surface of the front-end | tip of the other side of the bifurcated branch part of the one end side of the control material 35'.

In the regeneration mode, the constant speed reel gear 25 rotates in the counterclockwise direction, and the pin 37 'is slid to the inner circumferential cam surface of the eccentric cam 34' as shown in FIG. As a result, the control member 35 'is oscillated about the axis 36. When the tape ends in the regeneration mode, the reel shaft 22 stops rotating. However, the constant speed reel gear 25 to which the rotational force from the motor M is transmitted is slipped with respect to the high speed reel gear 24 integrated with the reel shaft 22 by the action of the friction transfer mechanism, and continues to rotate. In this state, the elastic bearing force in the clockwise rotation direction with respect to the control member 35 'by the rotation detecting member 39' is not applied. As a result, the control member 35 'swings at a position where the pin 37 is farthest from the center of the reel shaft 22 of the eccentric cam 34', as shown in FIG. The movement stops and stops at that position. After this state, the constant speed reel gear 25 is rotated in the counterclockwise direction again, so that the pressing projection 42 is applied to the pin 37 of the control member 35 'as shown by the solid line in FIG. Abuts. Even after the abutment, the low speed feed reel gear 25 is rotated in the counterclockwise direction so that the pin 37 is pushed and displaced by the slope of the pusher 42 'and the control member 35' is rotated counterclockwise. do. In response to this rotation, the locking member 17 moves in the direction of the arrow D, and the locking member 17 is in the state indicated by the double-dot chain line in FIG.

As a result, the engaging piece 21 of the reproducing operation member 12 comes out of the engaging jaw portion 19 of the engaging member 17, and is brought into the unlocked state indicated by the double-dotted line in FIG. The operation member 12 returns to the initial position shown by the dashed-dotted line in FIG. 5C, and the playback mode of the tape recorder automatically stops.

In addition, as in the second embodiment, the pin 37 'is provided on the distal end surface of the other side of the control member 35', and the pin 37 'is brought into contact with the pressing projection 42 to thereby make this pin. Since the part of (37 ') is pushed to the reel shaft 22 side, the control member 35 compared with the case of pressing the part of the pin 37' to the half reel shaft 22 side as in the first embodiment described above. As the pin 37 'of the') approaches the reel shaft 22, the rotational load of the constant speed reel gear 25 decreases. Therefore, the power load of the motor for performing the automatic stop operation can be reduced.

Next, a third embodiment of the present invention will be described with reference to FIG. In the present embodiment, the same parts as those in the above-described first embodiment will be described with the same reference numerals.

This embodiment differs from the first embodiment in the respective configurations of the eccentric cam, the rotation detecting member, and the control member, the shape of the push projection, and the position of its excavation.

In other words, in this embodiment, as in the above-described second embodiment, an eccentric cam 34 having an inner circumferential surface as a cam surface is provided on the upper surface of the reel gear 25 for constant speed transfer.

In addition, the control member 35 is freely rotated with respect to the shaft 36 and is provided so as to reciprocate in the directions of arrows A and B. FIG. On one side lower surface of one end of the control member 35, the engaging protrusion 43 is provided with the pin 37 on the other upper surface, respectively. Moreover, the rotation detection member 39 is comprised by providing the slit 45 in the protrusion piece 44 which protruded toward the radial direction in the substantially center of the outer periphery of the C-shaped fitting part 40, and was provided. The engaging projection 43 of the control member 35 is engaged in the slit 45 so as to be slidable. Moreover, the pressing protrusion 42 of the upper surface of the center part side of the constant speed reel gear 25 protrudes and is provided.

In the regeneration mode shown in FIG. 6A, the reel shaft 22 is rotated in the counterclockwise direction along with the reel gear 25 for the constant speed feed. While 35 is elastically supported in the direction of arrow A, the control member 35 reciprocates in the directions of arrows A and B by the action of the eccentric cam 34.

When the end of the tape is reached in the regeneration mode, the reel shaft 22 stops rotating and no elastic bearing force is applied in the direction of arrow A of the control member 35 by the rotation detecting member 39.

For this reason, the control member 35 displaces the pin 37 at a position close to the distance from the center of the reel shaft 22 of the eccentric cam 34, and the reciprocating motion is stopped to stop at that position. In the state shown in b).

After this state, the constant speed reel gear 25 is rotated in the counterclockwise direction again, so that the push projection 42 is formed by the control member 35 as shown by the solid line in FIG. Abuts against the pin 37.

Even after the abutment, the constant speed reel gear 25 is rotated in the counterclockwise direction, whereby the pin 37 is pushed and displaced by the slopes of the push projections 42, and the control member 35 has the shaft 36 Rotate clockwise around).

In accordance with this rotation, the locking member 17 is moved in the direction of arrow D, and the state is indicated by the double-dot chain line in FIG.

As a result, the locking piece 21 of the regeneration operation member 12 is pulled out of the locking jaw portion 19 of the locking member 17, and the locking piece 21 of the locking member 17 is in the unlocked state as indicated by the double-dotted line in FIG. The reproducing operation member 12 returns to the initial position as indicated by the dashed-dotted line in Fig. 6C, and the reproducing mode of the tape recorder is released.

In this third embodiment, the distance L ₁ between the center of the shaft 36, which is the point of the control member 35, and the pin 37, the center of the shaft 36, and the locking member 17. Since the ratio between the distance L ₂ and the sliding joint 35a slidingly engaged with the engagement piece 20 is large, the power load of the motor for performing the automatic stop operation can be reduced as compared with the first embodiment. Can be.

In the above-described second and third embodiments, when the tape end is reached in the fast transfer / rewind mode, the function of the tape recorder is not automatically stopped as in the first embodiment.

In addition, this invention is not limited to the above-mentioned embodiment. In the above-described embodiment, the cam mechanism composed of the eccentric cam 34 and the pressing protrusion 42 is integrally installed in the reel gear 25 for constant speed transfer, but a separate rotation that rotates with respect to the reel gear 25 is performed. It is also possible to realize it as a whole. It is also possible to configure the high speed reel gear 24 and the winding side reel shaft 22 via a friction transfer mechanism having an appropriate frictional force.

In addition, the structure of the rotational transmission mechanism for alternatively transmitting the rotational force of the motor to the constant speed reel gear 25 and the high speed reel gear 24 can also be modified in various ways.

This invention required as mentioned above can be implemented in various deformation | transformation in the range which does not deviate from the summary.

According to the present invention as described above, when the end of the tape is reached in the high speed transfer / rewind mode, the idle stop for the automatic stop operation is stopped accordingly, so that the auto stop function works in the high speed transfer / rewind mode. There is no work. In addition, since the rotation carrier is constituted as described above, the configuration becomes simple.

In addition, when the rotary feeder for the constant speed feed where the push projection is formed is used together with the reel, the number of parts can be reduced compared to the case where they are installed, and the configuration can be simplified, and the excretion space can also be reduced, thereby reducing the tape recorder. It is very suitable to compact the planar shape of.

Claims (2)

A tape drive motor (M), a tape winding shaft (22) rotated by the motor (M), and a tape drive motor (or tape drive motor) at the time of tape travel are used to idle rotation of the tape winding shaft (22). A pressing mode 42, a traveling mode releasing member 35 which is engaged with the pressing protrusion and is displaced under the rotational force of the motor to release the traveling mode of the tape, and the release member 35 only when the tape winding shaft is rotated. A tape recorder having a retaining member (39) for maintaining a position at which it does not engage with the pressing projection, wherein the tape high speed conveying rotary carrier (24) formed coaxially with the tape winding shaft (22), and the tape The high speed is increased by a certain amount of the rotational force of the tape constant speed rotational transmission member 25 and the tape constant speed rotational transmission body which is rotated by the drive motor M and rotates together with the push protrusion 42. The frictional transmission mechanisms 51 and 52 which transmit to the rotational transmission body for conveyance, and the rotational force of the said tape drive motor are transmitted to the said rotational transmission body for constant speed feed by a constant speed feed operation of a tape, and the said tape drive is driven by a high speed transfer operation of a tape. And a rotation transfer path switching mechanism (27, 31, 26, 32) for transmitting the rotational force of the motor to the rotation transfer member for high speed transfer. According to claim 1, wherein the constant speed rotary carrier 25 is formed coaxially with the high speed rotary carrier 24, the pressing projection 42 is formed integrally with the constant speed rotary carrier. Tape recorder, characterized in that.