JPS62219257A - Operation switching device for tape recorder - Google Patents

Abstract

PURPOSE:To control various operations of a tape by one plunger only by varying the time of electric feeding to the plunger by turning a lock lever only while the plunger is fed with electricity, and sliding a base guide plate and also turning a fast-forward take-up reel gear. CONSTITUTION:When a call signal is received and a speech state is entered, the plunger 37 is fed with the electricity for several seconds and enters attracting operation to turn a lock lever 41 counterclockwise, so the lock end part 40 of the lock lever 41 is disengaged from a lock piece 46a, so that a driving gear 30 is rotated slightly clockwise. Then, the driving gear 30 engages a capstan gear 68. At this time, a motor 23 is fed with electricity to rotate, so the 1st capstan gear 68 is also rotated correspondingly to rotate clockwise the driving gear 30 engaging the 1st capstan gear 68. Then, an auxiliary slide base 27 slides as shown by an arrow A and a pressure spring 28 is moved as shown by an arrow A to press an engagement pin 13, so that the slide base 27 is also moved as shown by the arrow A.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an operation switching device for a tape recorder suitable for an answering machine.

(b) Conventional technology As described in Japanese Patent Publication No. 51-48724, an answering machine has a first tape used to transmit a message to the caller, and a second tape used to record the message from the caller. The drive mechanisms for driving the first tape and the second tape were provided completely independently.

(c) Problems to be solved by the invention In the conventional answering machine, as mentioned above, the first tape and the second
Since the drive mechanisms for the tapes are provided independently, each drive mechanism requires a plunger to change the first tape or the second tape from a stopped state to a recording or playback state.

Also, answering machines can send messages recorded while the owner is away.
y Sage can be listened to from anywhere. In this case, each of the aforementioned plungers is operated by a remote control signal sent from the owner via a telephone line to rewind or play the tape. It was necessary to use a remote control signal.

The present invention eliminates the above-mentioned drawbacks by enabling a tape to be brought into a constant speed driving state for playback or recording, or a fast forwarding or rewinding state by simply changing the energization time to the plunger using one plunger. The present invention provides an operation switching device for a recorder.

(d) Means for Solving the Problems The tape recorder operation switching device of the present invention has a first and a second operation switching device.
a slide base mounted to be slidable in a direction and to which first and second magnetic heads are mounted; first and second pinch rollers that are moved in relation to the slide base; and the first and second pinch rollers. first and second capsun provided facing each other, a rotary gear rotated by a motor, and a drive gear having a toothless portion for selectively meshing with the rotary gear and sliding the slide base. and,
a lock lever that rotates only while the plunger is energized; a base guide plate that is moved by the lock lever and restricts movement of the slide base in the second direction; The half-take-up reel gear is selectively engaged with the tape take-up reel shaft or the supply reel shaft, and the rotated position is held by a slide base.

(*) Function Since the operation switching device for a tape recorder of the present invention has the above-described configuration, when the slide base is slid in the first direction by the drive gear, the first pinch roller is connected to the first capstan. When the first tape is pressed at a constant speed and the slide base is slid in the second direction, the second
Drives the tape at a constant speed, half-winds it, or rewinds it.

(F) Embodiment An embodiment of the operation switching device for a tape recorder according to the present invention will be described with reference to the drawings. (1) is a chassis, and (2) is a first direction or A slide base is attached so as to be slidable in the second direction shown by the arrow (B), and the first recording/playback head (3) and the first erasing head are mounted so that the front gap in the center faces the direction of the arrow (A). (4), and the first recording/playback head (3).
and the second recording/playback head (9) and the second erasing head (10) so that the terminals (7) and (8) on the back face the terminals (5) and (6) on the back of the first erasing head (4). and a first one on the diagonal of the slide base (2).
A pinch roller (11) and a second pinch roller (12) are provided. (13) (13) is an engagement pin provided on the slide base (2) that also serves as a guide; (14>) is an engagement pin provided on the slide base (2) that also serves as a guide; A take-up reel shaft for winding endless tape, (16) and (17) are arranged in a cassette storage chamber (15) formed in the front, and a second recording/playback head (
9) and a take-up reel shaft and a supply reel shaft disposed in a cassette storage chamber (18) formed in front of the second erasing head (10); (19) and (20) are the first pinch roller (11); and a first pinch roller (12) facing the second pinch roller (12).
a first flywheel and a second flywheel having a capstan (21) and a second capstan (22);
3) is a motor, and a power transmission belt (26) is connected to the first flywheel (19), second flywheel (20), and idler (25) from the rotating shaft (24) of the motor (23). ) is suspended. (27) is an auxiliary slide base, which is slidably provided on the chassis (1) like the slide base (2>), and has one end of a two-pronged pressure spring (28) fixed thereto. A guide hole (45) having letter-shaped grooves (42), (43), and (44).
> is formed. A pin (13) on the slide base (2) protruding from the elongated holes (29) is positioned between the two-pronged terminals of the pressure spring (28). (30) is missing. The drive gear has teeth (31), (32), and (33), and a non-circular groove (35) into which the drive pin (34) provided on the auxiliary slide base (27) is fitted is eccentrically formed. and the drive gear (30) is a first
It meshes with a first capstan gear (68) provided coaxially with the kibscun (21). (37) is a plunger, which is pivotally supported on the shaft (38), and is connected to the driving gear (30) (7).
) Rotate the lock lever (41) having a locking end (40) that engages with the locking pieces (46a, 46b, and 46c) and a long locking piece (39). (48) is the first winding arm rotatably attached to the shaft (49);
) with the first and second idler gears (51) having different diameters (
52) is installed. (53) is a second winding arm rotatably attached to the shaft (54);
6), the pinch roller (2) is linked to the motor (23).
5) It has a quick take-up reel gear (57) attached to the same shaft (56) as the pinch roller (25), and is engaged with a spring (58) rotated by a lock lever (41). It has a pin (59). (60) is a long hole (61)
This is a base guide plate that is slidably attached to the slide base (
2) A guide window (64) with which the upper pin (63) engages is formed, and a guide spring (65) mounted on the base guide plate (60) is used to lock the locking lever (41) with the long piece. (39). (66) is a leaf switch. When the slide base (2) is slid in the direction of arrow 11UA, it turns on the contact piece on the endless tape side and puts the recording/playback head (3) etc. into operation. and slide base (
2) is slid in the direction of arrow B, the contact piece on the cassette tape side is turned on and the recording/playback head (9) etc. are put into operation.

Next, the operation of the tape recorder operation switching device of the present invention will be explained.

First, in order to use it as an answering machine, a cassette storage chamber (15) is formed in front of the first recording/playback head (3).
), and a recording tape cassette (not shown) is placed in the cassette storage chamber (18) in front of the second recording/playback head (9) to set it on standby. . In such a state, the drive gear (30
) is trying to rotate clockwise, but the drive gear (3
The locking end (40) of the lock lever (41) is locked with the locking piece (46a) of 0) to prevent rotation of the drive gear (30) (FIG. 9).

When a call signal is received and a call is made, the plunger (37) is energized for several seconds and the plunger (37) performs a suction operation to allow the lock lever (41) to rotate counterclockwise. - (41) locking end (40
) and the locking piece (46a) are disengaged, and the drive gear (3
0) is rotated somewhat clockwise. Then the drive gear (3
0) meshes with the capstan gear (68). On the other hand, since the motor (23) is energized and rotated at this time, the first capstan gear (68) is also rotated accordingly.
The drive gear (30) meshing with the capstan gear (68) is rotated clockwise. In the stopped state, the drive pin (34) is inserted into the groove located near the center of the drive gear (30) as shown in FIG. (35), but as the drive gear (30) rotates clockwise, it is moved to the surrounding groove (35), so the auxiliary slide base (27) As the slide base (27) slides in the direction of arrow (A), the pressure spring (28) also moves in the direction of arrow (A) and presses the engagement pin (13).
) is also moved in the direction of arrow (A).

Then, as shown in FIG. 4, the rotating shaft (5o) is moved along the slope of the elongated hole (67) formed in the slide base (2), and the first winding arm (49) is moved clockwise. The motor (
The rotational force of 23) is transmitted to the take-up gear (
69) to rotate the take-up reel shaft (14).

At the same time, the first pinch roller (11) on the slide base (2) is also moved and is pressed against the first capstan (21) via the endless tape (7o).On the other hand, in this state, the drive gear (30) is Since the toothless part (33>) is rotated to the position facing the first key to bustan gear (36),
The engagement between the drive gear (30) and the first capstan gear (36) is released, and the locking end (40) of the lock lever (41) and the locking piece (46c) engage with each other, so that the drive gear ( 30
) will stop. The endless tape (70) connects the first capstan (21) and the first pinch roller (11).
The first recording and reproducing head (3) reproduces the message pre-recorded on the endless tape (70) and transmits it to the caller, and the driven endless tape is transferred to the first winding shaft (15). ) is wound onto a reel hub that is fitted into the reel hub (Fig. 4).

When the reproduction of the message is finished and the beep tone recorded after the message is reproduced, the plunger (37) is energized again for several milliseconds, so the plunger (37) is sucked and the lock lever ( 41) to release the lock between the locking end (40) and the locking piece (46c), and the driving gear (30
), the drive gear (30) and the first capstan gear (68) mesh with each other to rotate the drive gear (30). The drive pin (34) then moves into the non-circular groove (3
5), the auxiliary slide base (27) is slid in the direction of arrow B, and the pressurizing spring (27) is moved along with the auxiliary slide base (27).
28) presses the pin (13) and slides the slide base (2) in the direction of the arrow (B), and the second pinch roller (12) connects the second capstan (22) to the cassette tape (71) for business purposes. Crimp through. - A large-diameter take-up gear (72) meshes with the second capstan gear (71), and a large-diameter take-up shaft gear (73) rotates together with the large-diameter take-up gear (72). 74) mesh, the rotational force from the motor (23) is transferred to the belts (26) and
Second flywheel (20), second capstan gear (
71), large diameter winding gear (72) and small diameter winding gear (
73) to the large diameter winding shaft gear (74),
The reel hub on the take-up side fitted to the take-up reel shaft (16) is rotated. Therefore, the second capstan (22)
The cassette tape is driven by the second pinch roller (12) to record the message from the caller applied to the recording head (9) and to wind up the tape (FIG. 6).

At this time, the plunger (37) is not energized and the lock lever (41) is rotated clockwise by the biasing force of the spring (72), and accordingly, the U-shaped spring (58) is also rotated clockwise. The U-shaped spring (5
The second winding arm (53), which is engaged with the shaft (56) by the pin (59), is rotated counterclockwise.
When the tip of the guide pin (76) on the second winding arm (53) is guided to the square hole (75) of the slide base (2) and the auxiliary slide base (27) is slid in the direction of arrow B, the guide pin (76) on the second winding arm (53) Groove (43) of auxiliary slide base (27)
is guided to the neutral position as shown in FIG. 6, and the quick take-up reel gear (57) is separated from the idler gear (77). Furthermore, at this time, the toothless portion (32) faces the first capstan gear (68>) and the plunger (
37) is no longer energized, so the lock lever <4
1) is rotated clockwise by a spring (72), and the locking end (40) of the lock lever (41) engages with the locking piece (46b) of the drive gear (30). (30
) is locked and stopped (Figure 6).

When the end of message recording is detected by a voice detection circuit (not shown), the plunger (37) is energized again for several milliseconds and the drive gear (30) is driven by the lock lever (41).
) is unlocked and the drive gear (30) is engaged with the first capstan gear (68), so that the drive gear (30) has the toothless portion (31) facing the first capstan gear (68) again. rotated to the desired position. As the drive gear (30) is rotated clockwise, the engagement pin (34) moves into the groove (3).
5), the auxiliary slide base (27) is slid in the direction of arrow A, and the drive pin (13> and pressure spring (27) are attached to the auxiliary slide base (27).
The slide base (2) interlocked at 28) is also slid in the direction of arrow A, returning to the stopped state shown in FIG.

In the above, we explained the case of recording to a business cassette tape after playing the endless tape, but in order to directly change the business cassette tape from the stopped state to the recording state or playback state, use the slide base (2). The leaf switch (66), which is turned on and off by the movement of the endless tape (70), energizes the plunger (37) until it is turned off to attract the endless tape (70). Then, the lock lever (41) is rotated counterclockwise, and the drive gear (
The engagement between the locking piece (46a) and the locking end (40) of the drive gear (30) is released, and the drive gear (30) is moved to the first capstan gear (
68). Along with that, the lock lever (41)
The locking long piece (39) slides the base guide plate (60) in the direction of arrow C against the spring (78) via the guide spring (65). The drive gear (30)
is rotated clockwise by meshing with the first capstan gear (68), and slides the auxiliary slide base (27) in the direction of arrow A in the same manner as described above, and accordingly, the slide base (2) also moves in the direction of arrow A. However, since the base guide plate (60) is slid in the direction of arrow C, the bottle (63) of the slide base (2) is in the engagement portion of the guide window (64) of the base guide plate (60). (79
) to prevent movement of the slide base (2). Therefore, even if the drive gear (30) is rotated to the position shown in FIG.
1) are not in contact with each other, and the first winding arm (49
) is blocked by the guide groove (80) of the slide base (2), and the second take-up gear (52) is stopped by the take-up reel shaft gear (
69) does not mesh. In such a state, the plunger (37) continues to be energized, so the lock lever (41)
) is rotated counterclockwise, and the locking end (4
0) is never locked. Therefore, the drive gear (30
) rotates and then slides the auxiliary slide base (27) in the direction of arrow B. The drive gear (30) passes the position shown in FIG. 4 until the endless tape (
When it detects that the leaf switch (66) that was turned on on the side (70) is turned off and stops energizing the plunger (37), the suction force of the plunger (37) disappears, and the lock lever (41) is rotated clockwise by the biasing force of the spring (72). Therefore, as mentioned above, as the auxiliary slide base (27) is slid in the direction of arrow B, the slide base (2) is also slid in the direction of arrow B, and the driving gear is moved to the position where the cassette tape is recorded (played). (30) is rotated, the locking piece (46b) and the locking end (40) are locked and the drive gear (30) is stopped, and in this way, the cassette tape can be recorded directly from the stopped state. be put into a state. .

There are times when I would like to remotely play back and listen to a message from a caller recorded on a cassette tape as described above. In such a case, it is necessary to first transmit a ringing signal to start up the telephone and put the endless tape into playback mode, and then to rewind the cassette tape by transmitting a remote control signal. (37
) to ty>M until it reaches the rewind state. That is, when the endless tape shown in FIG. 4 is being played back and the plunger (37) is energized by transmitting a remote control signal, the locking piece (46b) and the locking end (40) are locked. is released and the drive gear (30)
rotates a little and meshes with the first capstan gear (68),
The first capstan gear (68) is rotated. Then, the engagement pin (34) moves from the innermost circumference to the outermost circumference of the groove (35), so that the auxiliary slide base (27) is slid together with the slide base (2) in the direction of arrow B. On the other hand, since the plunger (27) continues to be energized, the lock lever (41) remains rotated counterclockwise, and the base guide plate (60) continues to slide in the direction of arrow C. (2) is slid in the direction of arrow B, the pin (63) provided on the slide base (2) is moved to the base guide plate (60) as shown in FIG.
The second winding arm (53) is guided by the guide groove (80) of the locking window (64) to prevent the slide base (2) from completely sliding in the second direction. 65), so when the slide base (2) is slid in the direction of arrow B, the bottle (76) of the second winding arm (53) moves into the groove (44).
), and connects the quick take-up gear (57) and the supply reel shaft (1
7) and the reel shaft gear (81) attached to the reel shaft gear (81). Therefore, the rotational force from the motor (23) is transmitted to the supply reel shaft (17>) via the belt (26), idler (25), quick take-up gear (57), and reel shaft gear (81). 17) is rotated in the reverse direction at high speed.Also, as the slide base (2) is not completely slid in the second direction as described above, the second pinch roller (12) and the second capstan (22) are not pressed against each other. Replace the cassette tape in early spring (Figure 8).

When rewinding from a stopped state, the lock lever is activated by continuing to energize the plunger (37) in the same way as described above.
(41) is rotated counterclockwise to release the lock between the locking piece (46a) and the locking end (40), and the drive gear (30)
is slightly rotated to mesh with the capstan gear (36), and the drive gear (30) is subsequently rotated. As a result, the slide base (2) is slid in the direction of arrow A together with the auxiliary slide base (27>), but the lock lever (41>
The base guide plate (60) is slid in the direction of arrow C, and the pin (63) engages the engagement portion (79) of the locking window (64).
) and prevent the movement of the slide base (2), so the first capstan (2) is attached to the first pinch roller (11).
1) is not brought into pressure contact, and the unwinding state is reached in the same manner as described above (FIG. 8). In this state, the plunger (37)
Since the pin (63) continues to be energized, the pin (63) is locked to the locking portion (80) of the locking window (64) of the base guide plate (60), and the locking piece ( The fan-shaped locking surface (85) of the lock lever (41) hits the lock lever (46d), stopping and holding the drive gear (30>), and the toothless portion (32) of the drive gear (30>) engages with the first capstan gear. (68), it is held in the rewind state.

When the power supply to the plunger (37) is stopped, the lock lever (41) is rotated clockwise by the spring (72), and the locking piece (46d) of the drive gear (30) and the locking portion (85) are rotated clockwise. Release the connection with the base guide plate (6
0) is returned in the direction of the arrow by the biasing force of the spring (78), and the pin (63) engages the locking part (60) of the base guide plate (60).
80>, the drive gear (30) becomes free, rotates slightly by the biasing force of the pressurizing spring (28), meshes with the capstan gear (68), and locks the drive gear (30) with the lock lever (41). The end (40) and the locking piece (46c
) to the locking position, slide base (2
) is slid to the stop position.

Finally, the operation of putting the cassette tape in a fast-forward state will be explained. First, in order to bring the endless tape into the manual winding state when it is in the playback state, the plunger (37) is energized until the contact piece on the cassette tape side of the leaf switch (66) is turned on. By energizing the plunger (37), the lock lever (41) rotates counterclockwise, releasing the engagement between the engagement end (40) and the engagement piece (46b), and locking the drive gear (30). Rotate the first capsun gear (
68) and subsequently rotate the drive gear (30), the engagement pin (34) is moved from the outer circumference to the inner circumference of the groove 35), so the auxiliary slide base (27>) moves in the direction of arrow B. The pressurizing spring (28) presses the drive pin (34) and moves the slide base (2> in the direction of arrow B).
slide in the direction.

At this time, the lock lever (41) is rotated counterclockwise by suction of the plunger (37), and the base guide plate (60) is slid in the direction of arrow C, so that the pin (63) is Guided by the guide groove (68) of the locking window (64) of the base guide plate (60), the slide base (2) is regulated at the position shown in FIG. 7. When the plunger (37) is de-energized, the spring (72)
), the lock lever (41) is connected to the U-shaped spring (5
8) and rotates clockwise with the second winding arm (5).
3) in the counterclockwise direction, the shaft (56) is not fitted into the square hole (75) and becomes free, and the guide pin (76)
is fitted into the groove (42) of the auxiliary slide base (27), meshes the manual winding gear (25) with the idler gear (77), and connects the idler gear (77) to the winding reel shaft gear (
74>, the rotational force of the morph (23) is transmitted from the belt (26) to the idler (25) to the manual winding gear (5).
7) and an idler gear (77) to the take-up reel shaft (16) to rotate the hub fitted to the take-up reel shaft (16), thereby manually winding up the cassette tape.

When fast-forwarding the cassette tape from a stopped state, by applying electricity until the contact piece on the cassette tape side of the leaf switch (66) is turned on, the endless tape can be fast-forwarded without operating, as in the case of rewinding. .

When the driving gear (30) is rotated to a position where the auxiliary slide base (27) is slid and the manual winding gear (57) is engaged with the idler gear (77>), the locking piece (46)
c) and the engaging end portion (40) are engaged and the missing tooth portion (32)
faces the first capstan gear (68), the drive gear (30) stops rotating and maintains the fast forward state.

To change from the fast-forwarding state to the stop state, energize the plunger (37) for a few milliseconds, and the lock lever (41) is rotated counterclockwise and the locking piece (46a) and the locking end (40) are rotated counterclockwise.
The drive gear (30) is rotated a little and meshed with the first capstan gear (68), and the drive gear (30) is disengaged from the drive gear (30).
0) continues to rotate. Then, the engagement pin (34) moves into the groove (3).
5) from the inner circumference to the outer circumference, the auxiliary slide base (27) slides in the direction of arrow A and returns the slide base (2) to the stop position.

The above operations are summarized as follows.

A. When the plunger (37) is energized from a stopped state, it is put into an endless tape running state, and by switching the electric circuit, it is put into a recording state or a playback state.

B. From the stopped state or the endless tape running state, when the plunger (37) is energized until the endless tape side contact piece of the leaf switch (66) is turned from on to off, the cassette tape is brought into a constant speed running state, and the electric circuit is turned on. By switching, the recording state or playback state is set.

When the plunger (37) is energized from the C0 stop state or the endless tape running state until the cassette tape side contact piece of the leaf switch (66) is turned on, the cassette tape is brought into a fast forward state.

D. When the plunger (37) is energized in the stopped state or in the endless tape running state, the cassette tape is rewound while the plunger is energized.

(G) Effects of the Invention The operation switching device for the tape recorder of the present invention rotates the lock lever only while the plunger is energized, slides the base guide plate, and rotates the quick take-up reel gear. Therefore, if the plunger continues to be energized, the slide base will be restricted from moving in the second direction by the base guide plate, and the pinch roller will not be pressed against the capstan, and the quick take-up reel gear will be aligned with the supply reel shaft. Since the tape is meshed with the gear of the plunger, the tape can be rewound, and if the power to the plunger is stopped before the rewinding state is reached, the fast take-up reel gear rotates in the opposite direction to the above-mentioned direction due to the spring. The tape meshes with the gear on the take-up reel shaft, allowing rapid tape forwarding. When the plunger is de-energized immediately after the slide base starts sliding in the second direction, the tape can be driven at a constant speed and recorded or played back. Therefore, various operations of the tape can be controlled using one plunger by simply changing the energization time to the plunger, which is particularly convenient for remote control.

[Brief explanation of drawings]

The figures all relate to the operation switching device for a tape recorder according to the present invention; Fig. 1 is a plan view of the whole, Fig. 2 is a back view of the whole, and Fig. 3 is a top view of the stopped state centered on the drive gear part. , FIG. 4 is a top view showing a state in which the first tape is running at a constant speed centering on the drive gear portion, and FIG. 5 is a top view showing a state in which the second tape is running at a constant speed centering around the drive gear portion.
FIG. 6 is an overall top view showing the second tape running at a constant speed;
FIG. 7 is a top view of the entirety showing the second tape fast-forwarding state, FIG. 8 is a top view of the whole showing the second tape rewinding state, and FIG.
The figure is a partial plan view showing the non-suction state of the plunger.
Figure 0 is a partial plan view showing the suction state of the plunger.
FIG. 1 is a plan view of the main part showing the suction state of the plunger. (1)...Chassis, (2)...Slide base, (3)...First recording/playback head, (9)...
Second recording/playback head, (11) (12)...First and second pinch rollers, (13)...Engagement bin (21
)<22)...first and second capstan, (27
)... Auxiliary slide base, (28)... Pressure spring, (30)... Drive gear, (36)...
・First capstan gear, (37)...plunge ~-
1 (41)...Lock lever 1 (60)...Base guide plate. Applicant Sanyo Electric Co., Ltd. and one other agent Patent attorney Takuji Nishino and one other person Fig. 1 Fig. 2 Fig. 3 Fig. 5 Fig. 60 Fig. 7 Fig. 8 Fig. 9 D- Fig. 10 Fig. 4

Claims (1)

[Claims] (1) a slide base that is attached to be slidable in first and second directions and to which first and second magnetic heads are attached; first and second pinch rollers that are moved in relation to the slide base; The capstan includes first and second capstans provided opposite to the first and second pinch rollers, a rotating gear rotated by a motor, and a toothless portion for selectively meshing with the rotating gear. a drive gear that slides the slide base; a lock lever that rotates only while the plunger is energized; and a base guide plate that is moved by the lock lever and restricts movement of the slide base in the second direction. The position rotated by the lock lever and selectively engaged with the take-up reel shaft or the supply reel shaft of the second tape and the rotated position becomes a fast take-up reel gear held by the slide base, and the slide base When the slide base is slid in the first direction by the drive gear, the first pinch roller is pressed against the first capstan via the first tape to drive the first tape at a constant speed, and the slide base is slid in the second direction. 1. An operation switching device for a tape recorder, characterized in that when the plunger is turned on, the second tape is driven at a constant speed, fast winding, or rewinding depending on the difference in the time when the plunger is energized.