JPH0749642Y2 - Tape recorder operation mechanism - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a tape recorder operating mechanism capable of immediately coping with an abnormal situation in which a head mounting plate does not move even when a reproducing operation is performed.

(Prior Art) Conventionally, by pressing the playback operation member, the head mounting plate is moved forward to perform the playback operation, and by pressing the recording operation member and the playback operation member, the recording operation is performed, and fast-forwarding is performed during the playback operation. Alternatively, the rewinding operation member is pushed in to retract the head mounting plate to perform a cue or review operation, and the head mounting plate is returned to the forward position along with the return of the fast forward or rewinding operation member to reproduce the reproducing operation. A tape recorder operating mechanism that is adapted to this is known (Japanese Patent Publication No. 50-18363).

(Problems to be Solved by the Invention) In such a conventional tape recorder operation mechanism, the reproducing operation member (operation lever 10) and the head mounting plate (sliding substrate 1) are connected to the elastic member (second coil spring 16). ), The head mounting plate is moved forward through the elastic member by pushing in the regeneration operation member.
In the unlikely event of some abnormal situation that hinders the forward movement of the head mounting plate, it is possible to push the reproduction operation member while bending the elastic member. In such a case, since the head mounting plate has not moved forward, the regeneration operation is not performed even if the regeneration operation member is pushed. If such an abnormal situation is left as it is, the tape recorder may be damaged, and it is assumed that the reproduced sound is small, and it may be delayed to notice the abnormal situation.

Even so, since no playback sound is generated during the playback operation, an abnormal situation will be noticed eventually, but during the recording operation, the actual situation is more serious. That is, if the recording operation member and the playback operation member are pushed in, it is assumed that the recording operation is being performed. This is because it may lead to a situation where it is not possible.

The present invention has been made in view of the above circumstances. In the unlikely event that the head mounting plate does not move even if a reproducing operation or a recording operation is performed, immediately notice this and take appropriate action. As well as being able to
An object of the present invention is to provide a tape recorder operation mechanism capable of performing a cue or review operation similar to the conventional one.

(Means for Solving the Problems) In order to achieve the above object, the tape recorder operation mechanism of the present invention is provided with a reproduction operation member integrally with the head mounting plate, and the head mounting plate and the head moving direction are the same. And a locked member that can move back and forth in a direction are connected by a spring, and when the head mounting plate moves forward, the head mounting plate pushes the locked member, and the locked member locks the locked member. Then, the head mounting plate is configured to be retained at a predetermined forward position, and when the fast-forwarding or rewinding operation member is forwardly operated while the engaged member is retained at the forward position by the locking member, In conjunction with this, the head mounting plate is made to retreat against the spring.

Further, the locking member is provided with a function of engaging the fast-forwarding or rewinding operation member, which advances independently, to hold the operation member in the forward position, and the locking member engages the forward-moving position of the locked member. To stop the movement in conjunction with the forward movement of the stop operation member,
Disengagement of the fast-forwarding or rewinding operation member at the forward position is performed in association with the forward movement of another operation member.

(Operation) If an abnormal situation occurs that prevents the head mounting plate from moving forward, the regeneration operation member cannot be pushed in.

Also, during the recording operation, if an abnormal situation occurs, the reproduction operation member is not pushed in and the recording operation is not performed.

Furthermore, if the fast forward or rewind operation member is pushed in during the playback operation, only the head mounting plate moves backward while the locked member remains locked at the forward position, and the cue or review operation is performed, and the fast forward or rewind operation is performed. When the operating member is returned, the head mounting plate is returned to the forward position by the spring and the reproduction operation state is set.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First
The figure is a plan view of the tape recorder operating mechanism of the present invention in a stopped state. In the figure, reference numeral 1 is a substrate, and a pair of left and right reel shafts 2 and 3 are rotatably attached to the upper surface thereof. Reel shaft gears 4 and 5 are arranged at the base ends of the reel shafts 2 and 3, respectively.

A high-speed feed idle gear 6 and a low-speed (standard speed) feed idle gear 7 are in mesh with the take-up reel shaft gear 4 on the right side of the drawing. High speed feed idle gear 6
Are rotatably attached to the substrate 1. The low speed feed idle gear 7 is rotatably attached to a substantially intermediate portion of the mounting arm 8. One end of this mounting arm 8 is located below the take-up reel shaft gear 4 and the center of rotation is the reel shaft 2.
Is matched with. Further, the mounting arm 8 has a planar triangular projecting piece 9 on one end side thereof.

Further, a pin-shaped engaging protrusion 10 is provided on the other end of the mounting arm 8. The mounting arm 8 is biased in one direction (clockwise in the figure) by a coil spring 11.

Idle gear 6 for high speed feed and reel shaft gear 5 on the left side in the figure
The high-speed feed drive gear 12 is selectively engaged with the gear so as to freely come into contact with and separate from it. Further, a low speed feed drive gear 13 having a smaller diameter than the high speed feed drive gear 12 meshes with the low speed feed idle gear 7 so as to freely come into contact with and separate from it.

The drive gears 12 and 13 for high-speed and low-speed feed are mounted on the mounting lever 14
Is coaxially and rotatably attached to one end of the. The mounting lever 14 is positioned below the mounting arm 8 and has a substantially intermediate portion pivotally mounted on the substrate 1 so as to be rotatable. A pin-shaped engaging projection 15 is provided on the other end of the mounting lever 14.
The mounting lever 14 is urged by the coil spring 16 in the clockwise direction in the figure, that is, in the direction in which the high-speed feed drive gear 12 and the low-speed feed drive gear 13 mesh with the high-speed feed idle gear 6 and the low-speed feed idle gear 7. There is.

Reference numeral 17 denotes a head mounting plate to which a recording / playback head (not shown) is mounted, which is provided on the upper surface of the substrate 1 so as to be movable back and forth in the front-rear direction. The head mounting plate 17 has long holes 18 and 19 formed on both sides thereof, and engagement pins 20 and 21 formed on the upper surface of the substrate 1 so as to project therefrom.
Is slidably engaged with. The head mounting plate 17 is biased by a coil spring 22 in the backward direction (opposite reel shafts 2 and 3 directions).

On one side of the front end portion of the head mounting plate 17 (left side in the drawing), a reproduction operation member 24 is integrally provided by extending this portion forward. An engaging piece portion 25 is projectingly provided on one side of the rear end portion of the head mounting plate 17. When the head mounting plate 17 is in the stop position (the state shown in FIG. 1), the engaging piece 25
By abuttingly engaging the engaging protrusion 10 of the mounting arm 8, the mounting arm 8 rotates counterclockwise in the figure against the urging force of the coil spring 11, and the low speed feed idle gear 7
Is held in a state where it does not mesh with the low speed feed drive gear 13. Further, when the head mounting plate 17 is in the reproducing (recording) position (state of FIG. 2) by advancing against the biasing force of the coil spring 22, the engaging piece portion 25 of the head mounting plate 17 engages with the engaging protrusion of the mounting arm 8. This mounting arm 8 becomes a coil spring
The urging force of 11 rotates clockwise in the figure to hold the low-speed feed idle gear 7 in a state of meshing with the low-speed drive gear 13.

This head mounting plate is located below the middle of the head mounting plate 17.
A locked member 26 is provided so as to be able to move forward and backward in the same direction as the forward and backward direction of 17. The locked member 26 has a pair of long holes 27, 2
8 are provided, and these elongated holes 27, 28 are slidably engaged with engagement pins 29, 30 projecting from the head mounting plate 17.
The locked member 26 and the head mounting plate 17 are connected by a coil spring 31, and the head mounting plate 17 and the locked member 26 are in a relative direction by the coil spring 31, that is, the head mounting plate 17 is
The locked member 26 is urged in the forward direction and in the backward direction.

A recording operation member 32, a rewinding operation member 33, a fast-forwarding operation member 34, and a stop operation member 35 are provided on the back surface side of the substrate 1 from the left side to the right side of the head mounting plate 17 in the figure. The recording operation member 32 has an engaging piece 36 provided on the right side in the figure,
It is movably engaged with a long hole 37 provided in a reproduction operation member 24 integrated with the head mounting plate 17. When the recording operation member 32 is pushed forward from the stopped state to be in the recording state, the engaging piece 36 abuts on the end surface of the long hole 37 of the reproduction operation member 24, so that the reproduction operation member 24 and the head mounting plate. 17 is pushed forward together with the recording operation member 32. Further, when the reproduction operation member 24 is pushed forward from the stopped state to be in the reproduction state, the engaging piece 36 of the recording operation member 32 is movably engaged with the elongated hole 37, so that the reproduction operation member is The pushing force of 24 is not transmitted to the recording operation member 32.

38 is an erasing head, which is attached to one end of a rotating arm 39. The rotating arm 39 has a shaft 39 on the other end side.
It is rotatably attached to the upper surface side of the substrate 1 at a. Further, the engaging body extended to the other end side of the rotating arm 39.
39b penetrates an opening (not shown) of the substrate 1 and is slidably engaged with a cam groove 40 provided in the recording operation member 32. Then, when the recording operation member 32 is in a stopped state, the rotating arm 39 rotates clockwise in the drawing to move the erasing head.
38 is held at a position where it does not contact the tape (not shown) set at a predetermined position. Then, when the recording operation member 32 is pushed forward into a recording state, the rotating arm 39 rotates counterclockwise in the figure by the guiding action of the cam groove 40 with respect to the engaging body 39b, and the erasing head 38 contacts the tape. Move to position.

The first and second overhanging pieces are provided on both sides of the tip of the rewinding operation member 33.
41 and 42 are provided. On the right side of the first overhanging piece 41 on the right side of the drawing, a guide portion 41a formed of an inclined surface and an abutting portion 41b formed of a surface parallel to the moving direction of the rewinding operation member 33 are provided. Further, a contact portion 42a formed of a bent piece is provided on the right side of the second overhanging piece 42 in the figure. Then, with the head mounting plate 17 being moved to the forward position, the rewinding operation member
When 33 is pushed in, the engagement protrusion 15 of the mounting lever 14 is slidably engaged with the guide portion 41a accordingly. This allows
When the mounting lever 14 rotates counterclockwise in the figure against the urging force of the coil spring 16 and the rewinding operation member 33 reaches the forward position, the engaging projection 15 of the mounting lever 14 causes the first protruding piece to move. By abuttingly engaging the abutting portion 41b of 41, the mounting lever 14 is rotated to the maximum in the counterclockwise direction in the drawing, so that the high speed feed drive gear 12 meshes with the reel shaft gear 5 on the left side in the drawing. It has become.

When the rewinding operation member 33 is pushed in while the head mounting plate 17 is moving to the forward position, the contact portion 42a of the second overhanging piece 42 contacts the one end side of the rotating lever 43, The rotating lever 43 is rotated clockwise in the drawing. This rotation lever 43
A substantially intermediate portion of the is pivotally attached to the substrate 1 so as to be rotatable.
On the other end side of the rotating lever 43, first and second engaging pieces 44 and 45 that branch in a bifurcated shape are provided. The first engagement piece 44 abuts and engages with one side edge 9a of the overhanging piece 9 of the mounting arm 8. The second engagement piece 45 abuts and engages with the one end surface 46a of the slide plate 46. That is, when the rotation lever 43 rotates clockwise in the figure,
The other end portion of the head mounting plate 17 comes into contact with a contact piece 17a made of a bent piece provided on the other side of the rear edge of the head mounting plate 17,
Is set back against the biasing force of the coil spring 31.

When the rotation lever 43 rotates clockwise, the first
The engaging piece 44 abuts and engages with the one side edge 9a of the projecting piece 9 of the mounting arm 8, and rotates the mounting arm 8 counterclockwise in the figure against the biasing force of the coil spring 11.

Further, by rotating the rotating lever 43 in the clockwise direction, the second engaging piece 45 thereof abuts and engages with the one end surface 46a of the slide plate 46,
This slide plate 46 is moved in the opposite reel shaft directions 2 and 3. Due to the movement of the slide plate 46, the other end surface 46b of the slide plate 46 abuts on the pinch roller mounting member 47, and the pinch roller mounting member 47 rotates counterclockwise in the drawing, and the pinch mounted on it. The roller 48 is separated from the capstan shaft 49.

The slide plate 46 is provided with a pair of long holes 50 and 51, and these long holes 50 and 51 are slidably engaged with the engagement pins 52 and 53 projectingly provided on the substrate 1.

The pinch roller mounting member 47 is rotatably attached to the upper surface of the substrate 1 by a shaft. The pinch roller mounting member 47 is biased by the coil spring 54 in the clockwise direction in the figure, that is, in the direction in which the pinch roller 48 is pressed against the capstan shaft 49. The coil spring 54 includes a pinch roller mounting member 47 and a head mounting plate.
It is installed between 17 and. Then, in the stopped state, the pinch roller mounting member 47 is attached to the coil spring 54 by the second engaging piece 55 provided on the other side (right side in the drawing) of the front end portion of the head mounting plate 17 in abutting engagement therewith. The power is received. As a result, the pinch roller 48 is held in a state of being separated from the capstan shaft 49.

A projecting piece 56 is provided at the tip of the fast-forwarding operation member 34. On one side of this overhanging piece 56, a first piece consisting of a cut-and-raised piece
The contact portion 56a is provided at the other end with a second contact portion 56b formed of a surface parallel to the moving direction of the fast-forwarding operation member 34 and a guide portion 56c formed of an inclined surface. Then, in the stopped state, the first contact portion 56a is in contact with one end of the rotating lever 43, and the engagement protrusion 15 of the mounting lever 14 is in contact with and engaged with the second contact portion 56b. , This allows the mounting lever 14
Is held in a neutral position. Further, when the fast-forwarding operation member 34 is pushed forward during the reproduction (recording) operation, it is pushed by the first contact portion 56a thereof, whereby the turning lever 43 is turned clockwise in the figure, and the mounting lever 14 is also turned. Engaging projection 15
By slidingly contacting the guide portion 56c from the second contact portion 56b, the mounting lever 14 is rotated clockwise in the figure by the urging force of the coil spring 16.

The operation members 32 to 35 are biased toward the retracted side (opposite reel shafts 2 and 3 side) by coil springs (not shown).

A locking member 57 is provided at the operation-side end of the substrate 1 so as to be movable in the left-right direction. The locking member 57 is biased in one direction (left side in the drawing) by a coil spring 58. The locking member 57 has recesses 59, 60, 61, 62, 63 on the side edge on the operating side, and these recesses 59 to 63 are the operating members 32 to 35 and the locked members.
It corresponds to 26 respectively.

Hook portions 64, 65, 66 and 67 are respectively provided on the right side edges of the recesses 59 to 62 corresponding to the recording and rewinding operation members 32 and 33, the locked member 26 and the fast-forwarding operation member 34 in the figure. ing. The side edges on the operating side of each of these hook portions 64 to 67 are guide surfaces 64a to 67a made of inclined surfaces. Locking surfaces 64b to 67b, which are parallel to the moving direction of the locking member 57, are formed at the end portions of the guide surfaces 64a to 67a opposite to the operation side.
Stopper surfaces 64c to 67c, which are surfaces orthogonal to the moving direction of the locking member 57, are formed at the end portions of these locking surfaces 64b to 67b. Further, a guide surface 63a composed of an inclined surface is formed on the right side edge portion of the recess 63 corresponding to the stop operation member 35 in the drawing.

The guide surfaces 64a to 67a, the locking surfaces 64b to 67b, the stopper surfaces 64c to 67c of the recesses 59 to 62, the operation members 32 to 34, and the locked member 26.
The engaging pins 32a to 34a and 26a respectively projectingly engaged with the sliding contact. In addition, the engagement pin protruding from the stop operating member 35
35a slidingly engages with the corresponding guide surface 63a of the recess 63. In addition, operation members for recording, rewinding and fast-forwarding 32 to 34
The inclination angles θ of the guide surfaces 64a, 65a, 67a of the recesses 59, 60, 62 corresponding to the above with respect to the moving axis of the locking member 57 are set to be the same. Further, the inclination angles θ ₁ of the guide surfaces 66a and 63a of the recesses 61 and 63 corresponding to the locked member 26 and the stop operation member 35 with respect to the moving axis of the locking member 57 are the same, and the guide surfaces 64 are the same.
It is set smaller than the inclination angle θ of a, 65a, 67a.

The lengths 1 of the locking surfaces 64b, 65b, 67b of the recesses 59, 60, 62 corresponding to the recording, rewinding and fast-forwarding operation members 32-34 are set to be the same. Further, the length l ₁ of the locking surface 66b of the recess 61 corresponding to the locked member 26 is set longer than the length l of the locking surfaces 64b, 65b, 67b.

Next, the operation will be described. FIG. 1 shows a stopped state, and a tape (not shown) is set from this state and a reproduction operation member is set.
When 24 is pushed forward against the biasing force of the coil spring 22,
A main switch (not shown) is turned on to rotate a motor (not shown), and the high speed and low speed feed drive gears 12, 13 and the capstan shaft 49 are rotationally driven. Further, the head mounting plate 17 and the locked member 26 advance together with the reproduction operation member 24. When the locked member 26 advances, the engaging pin 26a presses the guide surface 66a of the recess 61, so that the locking member 57 moves to the right in the figure against the biasing force of the coil spring 58. When the engagement pin 26a of the locked member 26 exceeds the end of the guide surface 66a on the side opposite to the operation side, the locking member 57 moves to the left side in the drawing by the biasing force of the coil spring 58, and the locked member 26 The engaging pin 26a comes into contact with and engages with the locking surface 66b and the stopper surface 66c. As a result, together with the locked member 26, the head mounting plate 17 and the reproduction operation member
24 is locked and held at the forward position, that is, the reproducing position, against the biasing force of the coil spring 22. As the head mounting plate 17 moves forward, the pinch roller mounting member 47 connected to the head mounting plate 17 via the coil spring 54 is rotated clockwise in the figure, and the pinch roller 48 is pressed against the capstan shaft 49 via the tape. To do. Further, as the head mounting plate 17 advances, its engaging piece part
Since 25 is separated from the engaging protrusion 10 of the mounting arm 8, the mounting arm 8 is rotated clockwise by the urging force of the coil spring 11, and the low-speed feed idle gear 7 attached to this is rotated at a low speed. It meshes with the feed drive gear 13, and the rotational force of this drive gear 13 is transmitted to the reel shaft gear 4 on the right side in the figure via the idle gear 7. Therefore, the tape is run at a low speed from the reel shaft 3 side on the left side to the reel shaft 2 side on the right side, and the reproducing operation is performed (state of FIG. 2).

When the fast-forwarding operation member 34 or the rewinding operation member 33 is pushed during such a reproduction operation, a cue or review operation is performed, and when the fast-forwarding or rewinding operation member is returned, the reproduction operation state is resumed.

That is, when the fast-forward operation member 34 is pushed in and moved forward during the reproducing operation shown in FIG.
Since a presses the guide surface 67a of the recess 62, the locking member 57 moves to the right in the figure against the biasing force of the coil spring 58.

As the fast-forwarding operation member 34 moves forward, its first contact portion
Pressed by 56a, the turning lever 43 turns clockwise in the figure. With the rotation of the rotation lever 43, the first engaging piece 44
Pushes one side edge 9a of the overhanging piece 9 of the mounting arm 8, the mounting arm 8 rotates counterclockwise in the figure against the urging force of the coil spring 11, and the low speed feed idle gear 7 moves at a low speed. Separated from the feed drive gear 13. Further, since the second engagement piece 45 presses the pinch roller mounting member 47 via the slide plate 46 with the rotation of the rotating lever 43, the pinch roller mounting member 47 resists the biasing force of the coil spring 54. Then, it rotates counterclockwise in the figure, and the pinch roller 48 is slightly separated from the capstan shaft 49. Furthermore, since the other end presses the contact piece 17a of the head mounting plate 17 with the rotation of the rotating lever 43, the head mounting plate 17 is slightly retracted against the biasing force of the coil spring 31, The recording / playback head is slightly separated from the tape.

Further, as the fast-forwarding operation member 34 advances, its second contact portion
Since the engaging protrusion 15 of the mounting lever 14 is disengaged from 56b, the mounting lever 14 is rotated clockwise by the urging force of the coil spring 16 so that the high speed feed drive gear 12 meshes with the high speed feed idle gear 6. Then, the rotational force of the high-speed feed drive gear 12 is transmitted to the reel shaft gear 4 on the right side in the drawing through the high-speed feed idle gear 6, and the cue operation is performed (state in FIG. 3).

When the rewinding operation member 33 is pushed in during the regenerating operation, the high speed feed drive gear 12 meshes with the rewinding reel shaft gear 5 and the review operation is performed.

During the cue operation shown in FIG. 3, the fast-forward operation member
Even if the engagement pin 34a of 34 exceeds the end of the guide surface 67a of the recess 62 on the side opposite to the operation side, the friction force between the engagement pin 26a of the locked member 26 and the locking surface 66b of the locking member 57 causes a coil spring. The locking member 57 is prevented from moving to the left side in the drawing against the biasing force of 58.
Therefore, the engaging pin 34a of the fast-forwarding operation member 34 is not locked to the locking surface 67b of the recess 62, and the fast-forwarding operation member 3
When the hand is released from 4, the fast-forwarding operation member 34 immediately retracts, and accordingly, each movable part operates in the opposite manner to the reproduction operation shown in FIG.

Further, in the stopped state shown in FIG. 1, the recording operation member 32
When is pushed forward, the head mounting plate 17 moves forward integrally with the reproduction operation member 24 against the biasing force of the coil spring 22 in conjunction with this.

As the recording operation member 32 moves forward, its engaging pin 32a is recessed 59
Since the guide surface 64a of the coil spring 5 is pressed,
It moves to the right in the figure against the biasing force of 8. Then, when the engaging pin 32a of the recording operation member 32 exceeds the end of the guide surface 64a on the side opposite to the operation side, the locking member 57 moves to the left side in the drawing by the urging force of the coil spring 58, and the locking operation of the recording operation member 32 is stopped. The engagement pin 32a abuts and engages with the locking surface 64b and the stopper surface 64c. At the same time, the engagement pin 26a of the locked member 26 also engages with the locking surface 66b of the recess 61.
And the stopper surface 66c. As a result, together with the recording operation member 32, the reproduction operation member 24 and the head mounting plate 17 are locked at the forward position, and each movable part moves in the same manner as during the above-described reproduction operation to perform the recording operation. is there.

In such a recording operation, when the fast-forwarding operation member 34 or the rewinding operation member 33 is pushed in, a cue or review operation is performed, and when the fast-forwarding or rewinding operation member is returned, the operation is switched to the reproduction operation.

That is, during recording operation, for example, when the rewinding operation member 33 is pushed in, the engaging pin 33a presses the guide surface 65a of the recess 60, so that the locking member 57 resists the biasing force of the coil spring 58 in the figure. Move to the right. When the engaging pin 33a of the rewinding operation member 33 exceeds the end of the guide surface 65a on the side opposite to the operation side, at the same time, as shown in FIG.
Since a is disengaged from the locking surface 64b, the recording operation member 32 returns to the retracted position, and along with this, the rotating arm of the erasing head 38.
39 is rotated clockwise in the figure. On the other hand, as the rewinding operation member 33 moves forward, the contact portion 42a of the second overhanging piece 42 presses the turning lever 43, so that the turning lever 43 is turned clockwise in the drawing. . By this rotation, the recording / reproducing head 23 is slightly separated from the tape, the pinch roller 48 is slightly separated from the capstan shaft 49, and the mounting arm is provided in the same manner as in the case of performing the fast-forward operation during the reproducing operation described above. 8 is rotated counterclockwise in the figure against the biasing force of the coil spring 11. Further, as the rewinding operation member 33 moves forward, the guide portion 41a of the first overhanging piece 41 pushes the engaging projection 15 of the mounting lever 14, so that the mounting lever 14 is moved by the coil spring 16.
It rotates counterclockwise in the drawing against the urging force of, and the high-speed feed drive gear 12 meshes with the reel shaft gear 5 on the left side in the drawing, and the left reel shaft 3 rotates at high speed. As a result, the tape is rewound at high speed from the reel shaft 2 side on the right side to the reel shaft 3 side on the left side (review operation).

Even in such a review operation, the engaging pin 33a of the rewinding operation member 33 is engaged with the locking surface 6 of the recess 60 for the same reason as in the case of performing the fast-forward operation during the above-described reproduction operation.
It is not locked to 5b. Therefore, the rewinding operation member 33
When the hand is released from, the rewinding operation member 33 immediately retreats, and accordingly, each movable portion operates in the opposite manner to the above-described switching to the reproducing operation shown in FIG.

Further, when the stop operating member 35 is pushed forward during the reproducing operation or the recording operation, the engaging pin 35a presses the guide surface 63a of the recess 63, so that the locking member 57 causes the coil spring 58 to move.
The engaging pin 26a of the locked member 26 or the engaging pin 32a of the recording operation member 32 moves to the right side in the figure against the urging force of the locking surface 66.
By detaching from b or 64b, the head mounting plate 17, the locked member 26, and the reproducing operation member 24 are integrally retracted, or the recording operation member 32 is also retracted, and a stopped state is obtained as shown in FIG. .

(Effect of the Invention) As described above, according to the tape recorder operation mechanism of the present invention,
Since the playback operation member is integrated with the head mounting plate,
In the unlikely event that an abnormal situation occurs that prevents the head mounting plate from advancing, the reproduction operation member cannot be pushed in. Therefore, the abnormal situation may be immediately noticed and left unattended. There is no.

Also, during the recording operation, if the playback operation member cannot be pushed in, the recording operation will not be performed, so it is possible to perform some appropriate processing such as using another tape recorder instead. It is possible to avoid the situation of missing the recording opportunity of.

Moreover, the head mounting plate is connected to the locked member via a spring, and the head mounting plate is held at the forward position by locking the locked member at the forward position. Alternatively, by pushing in the rewinding operation member and retracting the head mounting plate while the locked member is locked at the forward position, the same cue or review operation as in the conventional case can be performed.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention. FIG. 1 is a plan view of a tape recorder operating mechanism in a stopped state, FIG. 2 is a plan view of the same reproducing state, FIG. 3 is a plan view of a cue operating state, and FIG. The figure is a plan view in the middle of switching from the recording operation to the review operation. 17: Head mounting plate, 24: Playback operation member, 26: Locked member, 31: Coil spring (spring), 32: Recording operation member, 33: Rewind operation member, 34: Fast forward operation Member, 57
...... Locking member.

Claims (2)

[Scope of utility model registration request] 1. A playback operation member (24) integrally provided with a head mounting plate (17) capable of advancing and retreating and setting forward and setting a playback mode, and a playback operating member (24) provided so as to advance and retract, advancing forward to fast forward or rewind mode. Fast forward or rewind operation member to set the (33,34)
And a locked member (26) that is provided so as to be movable in the same direction as the head mounting plate, is connected to the head mounting plate via a spring (31), and advances as the head mounting plate advances. A locking member (57) which engages with the forward-moved engaged member and holds the engaged member in the forward position, and when the engaged member is held in the forward position by the locking member A tape recorder operating mechanism, which comprises means (43) for retracting the head mounting plate against the spring in association with the forward movement of the fast-forwarding or rewinding operation member. 2. The locking member has a function of engaging with a fast-forwarding or rewinding operation member that advances independently and holding the operation member in the forward movement position, and interlocking with the forward movement of the stop operation member (35). The engagement of the locked member at the forward position is released, and the engagement of the fast-forward or rewind operation member at the forward position is released in association with the forward movement of another operation member. The tape recorder operation mechanism according to 1.