JPS6145445A - Device for searching tape position in tape recorder - Google Patents

Abstract

PURPOSE:To omit an electromagnetic plunger and to simplify the constitution of a device by stopping a searching mode temporally when a required tape position is detected at the searching mode, and then starting reproducing operation at a required point of time. CONSTITUTION:Various operating members 12-16 and the 1st and 2nd locking members 20, 21 are arranged on a substrate. At the quick searching of a required tape position, the reproducing member 15 and the quick feeding member 13 are locked by the locking members 20, 21 respectively and the tape is travelled at a high speed. When the required tape position is detected under said status, a motor is temporally stopped by the detecting signal. When the stop member 12 is depressed at the succeeding required time, only the high speed operation member 13 is restored to start reproducing operation. Consequently, the electromagnetic plunger can be omitted, the constitution is simplified and a margin up to the start of reproduction can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention provides a tape position search for a tape recorder that can locate a desired tape position in a tape high-speed feed mode and then start a playback operation at a desired time. Regarding equipment.

[Conventional technology]

2. Description of the Related Art In tape recorders, tape position search devices (so-called cue devices) for quickly finding a desired tape position and immediately starting a playback operation are well known.

This involves, for example, feeding the tape at high speed with the head lightly touching the tape, detecting a specific signal indicating the tape position (for example, a non-recording signal obtained from a non-recording position on the tape), and using that detection signal to This allows switching from high-speed feed mode to playback mode. In other words, the playback operation member and the high-speed operation member, that is, the fast-forward or rewind operation member, are held in the push-in position at the same time, and the tape is run at high speed with the head lightly touching the tape (this state is tentatively referred to as search mode). ), the desired tape position is found, and the obtained
In response to a preset specific signal, only the high-speed feed operation member is released to start the reproducing operation.

(Problem to be Solved by the Invention) However, such a conventional tape position search device runs the tape at high speed with the playback operation member and the high-speed feed operation member held at the push-in position simultaneously, and detects a specific signal. Therefore, it is necessary to release only the high-speed feed operation member, and an electromagnetic plunger or the like is required to release the high-speed feed operation member, which has the disadvantage that the overall structure becomes complicated.

Furthermore, there are cases in which it is not desired to perform a reproduction operation immediately after finding a desired tape position. For example, when the user leaves the location for a short time while in the search mode. However, with conventional tape position searching devices, the playback mode is automatically started as soon as the desired tape position is found, and there is no room to arbitrarily set the point at which the playback operation starts, so the user has to leave the tape position. I can't. Therefore, it is not convenient to search for a desired tape position while the user is away from the location.

The present invention was made based on these circumstances, and
The object is to provide a tape position search device for a tape recorder that can search for a desired tape position with a simple configuration and can start a playback operation at any time.

[Means for solving problems]

To achieve the above object, the tape position search device of the present invention includes a first locking member having a playback operation member locking portion and a stop operation member engaging portion, a high-speed feed operation member locking portion, and a stop operation member. a second locking member having an engaging portion;
a self-resetting playback operation member that is held in a pushed-in position by a playback operation member locking portion of the locking member to maintain the tape recorder in a playback mode; and a high-speed feed operation member locking portion of the second locking member. a self-resetting high-speed feed operation member that maintains the tape recorder in a tape high-speed feed mode with the magnetic head in light contact with the tape when in the push-in position together with the playback operation member; When both the operation member and the high-speed feed operation member are in the push-in position and a preset specific tape position is detected by the magnetic head, the detection signal causes the tape drive motor to stop, and then the playback operation member is activated. motor control means for restarting the motor upon return to the high-speed feed operation member when only the high-speed feed operation member is returned; releasing the high-speed feed operation member from the high-speed feed operation member locking portion by engaging;
A self-returning stop operation member that releases the regeneration operation member from the regeneration operation member engagement portion by pushing the first locking member into the stop operation member engagement portion of the first locking member; , provided on the second locking member, the second locking member retains the high-speed feed operation member at the push-in position by its high-speed feed operation member locking portion, and the stop operation member is pushed in; and a stop operation member movement regulating section that regulates the amount so that the amount is greater than or equal to the amount required to release the fast forward operation member and less than the amount required to release the regeneration operation member. It is.

[Effect]

In the above configuration, the motor is stopped by the motor control means when the desired tape position is found in the search mode in which the playback operation member and the high-speed feed operation member are pushed in, and then stopped at the desired time. By pushing the operating member, only the high-speed feed operating member can be returned to its original position, and the regeneration operation can be started.

〔Example〕

FIG. 1 shows a schematic configuration of a tape recorder, in which a pair of reel shafts (take-up reel shaft 2a) mounted on a board 1 are shown.
A tape cassette 3 is removably loaded on the supply reel shaft 2b), and both reel shafts 2a, 2b and capstan shaft 4 are connected to a motor 5 attached to the side of the substrate 1.
Rotationally driven by.

Further, a head mounting plate 6 is mounted on the substrate 1 so as to be able to move forward and backward, and a magnetic head 7 is mounted on the head mounting plate 6. Therefore, when installing the head, the magnetic head 7 comes into contact with the magnetic tape in the tape cassette 3 by moving the plate 6 forward. It is biased in the direction of pulling it apart. Further, a pinch roller support member 9 is rotatably mounted on the substrate 1, and a pinch roller 10 is pivotally supported at the rotation end of the pinch roller support member 9. A rod spring 11 is attached to the pinch roller support member 9, and one end of this spring 11 extends to the rotating end of the pinch roller support member 8, and the head attachment engages with a part of the plate 6, thereby attaching the head. When the plate 6 moves forward to bring the magnetic head 7 into contact with the tape, the pinch roller support member 9 rotates to bring the pinch roller 1o into pressure contact with the capstan shaft 4 (via the magnetic tape), and vice versa. The mounting is such that when the plate 6 moves backward, the pinch roller support member 9 rotates in a direction to separate the pinch roller 10 from the capstan shaft 4.

Various operating members 12 to 16 are mounted on the back side of the board 1 so that the head can be moved forward and backward in the same direction as the plate 6. These operating members are, from the right, a stop operating member 12;
A fast-forward operation member 13, a rewind operation member 14, a playback operation member 15, and a recording operation member 16, including the fast-forward operation member 1.
3 and the rewind operation member 14 correspond to the high-speed feed operation member in the present invention. And these operating members 12-1
6 are all urged in the return direction (the head mounting direction is the same as the return direction of the plate 6) by a return spring (not shown). Further, push buttons 12a to 12a are provided at the ends of each of the operating members 12 to 16.
16a are attached and these buttons are located at the front edge of the board 1.

Then, push the playback button 15a and operate the playback operation member 15.
When the head is moved forward, the head mounting temporary 6 moves forward, and a rotation transmission mechanism (not shown) provided on the back side of the substrate 1 is activated. As a result, the magnetic head 7 and the pinch roller 1° come into contact with the tape, the motor 5 rotates, and its rotation is transmitted to the capstan shaft 4 and take-up reel shaft 2a, and the tape recorder enters the playback mode.

Further, when the recording button 16a is pressed together with the reproduction button 15a to move the reproduction operation member 15 and the recording operation member 16 forward, the recording mode is entered.

When the fast-forwarding button 12a is further pushed forward to advance the fast-forwarding operation member 12, the rotation transmission mechanism becomes a form that transmits high-speed rotation, transmits the rotation of the motor 5 to the take-up reel shaft 2a, and enters playback or recording mode. The take-up reel shaft 2a is rotated at a faster speed than when the tape recorder is placed in fast forward mode.

Further, when the rewinding button 13a is pressed and the rewinding operation member 13 is moved forward, the rotation transmission mechanism is configured to transmit high-speed rotation, and the supply reel shaft 2b is rotated at high speed in the tape winding direction. Put the recorder in rewind mode.

Further, when the playback operation member 15 is in the push-in position, by roughly pushing the fast-forward button 13a and moving the fast-forward operation member 13 forward, the head mounting plate 6 moves back slightly from the playback operation position and the magnetic head 7 comes into light contact with the tape, and the pinch roller 10 moves away from the capstan @4 and the tape runs at high speed in the winding direction.
This is a so-called queue mode (search mode).

Furthermore, when the playback operation member 15 is in the push-in position, even when the rewind button 14a is pressed and the rewind operation member 14 is moved forward, the head mounting plate 6 is slightly retracted from the playback fj1 operation position. The magnetic head 7 comes into light contact with the tape, the pinch roller 10 separates from the capstan shaft 4, and the tape runs at high speed in the rewinding direction, a so-called Lévigny mode (search mode).

FIG. 2 shows a motor control means for controlling the motor 5, in which the motor 5 includes a switch 17 and a latch relay 1.
It is connected to a power supply 19 via 8. Above switch 1
7 is turned on when at least one of the playback operation member 12, fast-forward operation member 13, or rewind operation member 14 is in the push-in position, and turned off when all three operation members are in the stop position. In addition, the latch relay 18
are the first terminal 18a, the second pane 18b and the common terminal 18.
c, and the specific signal indicating the tape position is the first
When inputted to the terminal 18a, the signal is turned off, and when the fast-forward operation member 13 or the rewind operation member 14 returns from the pushed-in position, a signal is inputted to the second terminal 18b, which turns it on.

FIGS. 3 to 7 show the various operating members 12 to 16 and the first operating members selectively engaged therewith. Second locking member 20.21
It shows the relationship between Both of the locking members 20 and 21 are superimposed on each other and are provided on the substrate 1 so as to be slidable in the left and right directions.
For the sake of convenience, both the locking members 20 and 21 are shown in parallel to make it easier to understand the operation of the 0.21.

The first locking member 20 has sloped engagement portions, that is, stop operation member engagement portions 22 at portions corresponding to the stop operation member 12, the fast forward operation member 13, and the rewind operation member 14, respectively.
, has a fast-forward operating member engaging portion 23 and a rewind operating member engaging portion 24, and hook-shaped playback operating member locking portions 26 and recording operation members at portions corresponding to the playback operating member 15 and recording operating member 16, respectively. It has a member locking part 27. The first locking member 20 is biased toward the right in the drawing by the return spring 27, and when the stop operation member 12, fast-forward operation member 13, or rewind operation member 14 moves forward, the engaging portion 22, 23 or The inclined surface 24 moves to the left in the figure by engaging with the engaging protrusion 12b, 13b or 14b provided on each operating member. Here, the inclined surface of the engaging part 22 corresponding to the stop operating member 12 has a larger left and right width than the inclined surfaces of the other two engaging parts 23 and 24, so that when the stop operating member 12 moves forward, When the locking member 20 moves significantly to the left and the fast forward operation member 13 or the rewind operation member 14 moves forward, the locking member 2
The 0 is made to move slightly. Furthermore, the playback operation member locking portion 25 and the recording operation member locking portion 26 both have a shape in which a concave portion is continuous at the end of an inclined surface. Both the inclined surface and the recessed portion have a large width in the left-right direction, and the recording operation member locking portion 26 corresponding to the recording operation member 16 has a small width in the left-right direction in both the inclined surface and the recessed portion.

Therefore, when pushing the regeneration operation member 15, the engagement protrusion 15b and the inclined surface of the regeneration operation member locking part 25 slide together, causing the locking member 20 to once slide largely to the left, and the engagement protrusion 15b When the locking member 2 comes off the inclined surface, the locking member 2
0 slides back to the home position in the right direction, the engagement protrusion 15b falls into the recess, and the playback operation member 15 is held in the forwardly moved position. In addition, when pushing the recording operation member 16, the engagement protrusion 1
6b and the inclined surface of the recording operation member locking portion 26, the locking member 20 briefly slides to the left,
When the engaging protrusion 16b comes off the slope, the locking member 20 slides back to the right direction to the home position, the engaging protrusion 16b falls into the recess, and the recording operation member 16 remains in the forward position. will be retained.

The 21st system stop member 21 has a sloped stop operation member engaging portion 28 and two stop operation member movement restriction portions continuous thereto at a portion corresponding to the stop operation member 12, and also has a fast forward operation member. 13. Hook-shaped fast-forward operation member locking portions 3 at portions corresponding to the rewind operation members 14, respectively;
0 and a rewinding operation member locking portion 31, and a return spring 3
2 is biased toward the right in the drawing. When the locking member 21 is at the right home position as shown in FIG. 3, the stop operation member engaging portion 28 is located slightly to the right from the front position of the engaging protrusion 12b, Even if the stop operation member 12 moves forward, it will not engage with the engagement protrusion 12b. Furthermore, each of the engaging portions 30 and 31 has a shape in which a concave portion is continuous at the end of an inclined surface, and when the fast forward operating member 13 or the rewind operating member 14 is pushed in, the engaging protrusion 13b or 14b is used. The locking member 21 once slides to the left by sliding with the inclined surface of the engaging portion 30 or 31, and when the engaging protrusion comes off the slope, the locking member 21 slightly slides back to the right. The engaging protrusion falls into the recess, and the fast-forward operation member 13 or the rewind operation member 14 is held in the forwardly moved position. When the fast-forwarding or rewinding operation member is thus held at the forward movement position, the second locking member 21 is also held at a position slightly to the left of its home position. Therefore, the fast forward or rewind operation member is stopped in the forward movement position.

When the operation member 12 is pushed in, the engagement protrusion 12b and the stop operation member engagement part 28 slide together, and as a result, the locking member 21 once slides to the left and engages the engagement protrusion 13t.
1 or 14b is disengaged from the locking portion 30 or 31, and the fast forward operation member 13 or the rewind operation member 14 is released.

At this time, the amount of movement of the stop operation member 12 in the pushing direction is limited by the engagement protrusion 12b coming into contact with the stop operation member movement amount regulating section 29,
b is set to the minimum amount necessary to release the locking portion 30 or 31 from the locking portion 30 or 31.

In the above-mentioned opening, in order to carry out a playback operation, the playback button 15a can be pushed in as shown in FIG.

At this time, the regeneration operation member 15 moves forward, the switch 17 is turned on, and the motor 5 rotates. Further, the regeneration operation member 15 is held at the pushed-in position by the engagement between the engagement protrusion 15b and the locking portion 25. To stop the playback operation, press the stop button 12a
Just press and operate. When the stop button 12a is pushed in, the engagement protrusion 12b slides onto the stop operation member engagement portion 22, and the first locking member 20 slides to the left to release the regeneration operation member 15.

The recording operation can be performed by pressing the playback button 15a and the recording button 16a at the same time, and the stopping operation can be performed in the same way as stopping reproduction by pressing the stop button 12a.

Next, to perform the fast forward operation, press the fast forward button 13 as shown in Figure 5.
All you have to do is press a. At this time, the fast forward operation member 1
3 moves forward, switch 17 is turned on, and motor 5 rotates. Further, the fast-forward operation member 15 is held in the pushed-in position by the engagement between the engagement protrusion 13b and the fast-forward operation member locking portion 30 of the second locking member 21. At this time, the second locking member 2
1 is held at a position slightly moved to the left from the home position by the engagement between the engaging protrusion 13b and the locking part 30.

The first locking member 20 is also held at a position slightly moved to the left from the home position by the engagement between the engaging protrusion 13b and the fast-forward operation member engaging portion 23. When the stop button 12a is pushed in to stop this fast-forwarding operation, the engagement protrusion 12b slides into the stop operation member engagement portion 28 of the second locking member 21, and the second locking member 21 is moved to the left. The fast forward operation member 13 is released by sliding in the direction shown in FIG.

At this time, the amount of movement of the stop operation member 12 in the pushing direction is regulated by the two stop operation member movement amount regulating sections, and the engagement protrusion 12b reaches the engagement portion 22 of the first locking member 20. Not enough. When the fast-forward operating member 13 returns, the first locking member 20 and the second locking member 21 are also disengaged from the engaging portion 23 and return to their respective home positions.

The same applies to the rewind operation and the rewind stop operation.

Next, in the playback operation state where the playback operation member 15 is kept at the pushed-in position, when the fast forward button 13a is further pushed in,
As shown in FIG. 6, the fast-forward operation member 13 is also held in the pushed-in position by the engagement between the engagement protrusion 13b and the fast-forward operation member locking portion 30 of the second locking member 21, resulting in a so-called queue mode (search mode). Thus, the magnetic tape runs at high speed in the response direction with the magnetic head 7 in light contact.

When a desired tape position is found in this state, a preset specific signal 1q is input to the first terminal 18a of the latch relay 18 shown in FIG. 2, turning the latch relay 18 off. . Therefore, the motor 5 stops,
The magnetic tape stops running immediately.

Next, when the stop button 12a is pressed as shown in FIG. Slide the stop member 21 to the left and press the fast forward operation member 13.
Release from the pushed position.

Then, when the fast-forward operation member 13 returns from the pushed-in position, a signal is input to the M2 terminal 18b of the latch relay 18, and the latch relay 18 is turned on again and the motor 5
is restarted, the state shown in FIG. 4 is reached, and the playback operation is started.

In the playback operation state in which the playback operation member 15 is held at the push-in position, the rewind button 13a is further pushed to enter the review mode (search mode) and perform the desired operation.

The same applies to the case where the tape position is found and the playback operation is started from that tape position.

〔Effect of the invention〕

As described above based on the embodiments, according to the present invention, the motor is simply stopped when the desired tape position is found, so that the high-speed feed operating members such as fast-forward and rewind can be released. 74 magnetic plunger mechanism etc. are completely unnecessary.

Therefore, the overall configuration is simplified, and there is an advantage that the playback operation can be started at any time when it is not desired to start the playback operation immediately after finding the desired tape position.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a plan view showing a schematic configuration of a tape recorder, Fig. 2 is a circuit configuration diagram showing a motor control means, and Figs. M3 to 7 are various operating members. and a first. which selectively engages these. It is a figure which shows the relationship with a 2nd locking member. 5...Motor, 7...Magnetic head, 12...Stop operation member, 13...Fast forward operation member (high speed feed operation member) 14...Rewind operation member (high speed feed operation member),
15... Reproduction operation member, 17... Switch, 18.
... Latch relay, 2o... Seventh locking member, 21.
...Second locking member, 22.28...Stop operation member engaging portion, 25...Regeneration operation member engaging portion, two...Stop operation member movement amount regulating portion, 3o... Fast-forward operation member locking portion (high-speed feed operation member locking portion)-31... Rewind/operation member locking portion (high-speed feed operation member locking portion). Applicant's agent Patent attorney Takehiko Suzue Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (2)

[Claims] (1) a first locking member having a regeneration operation member locking portion and a stop operation member engaging portion; a second locking member having a high-speed feed operation member locking portion and a stop operation member engaging portion; a self-resetting playback operation member that is held in a pushed-in position by a playback operation member locking portion of the first locking member to maintain the tape recorder in a playback mode; and a high-speed feed operation member of the second locking member. a self-returning high-speed feed operation member that is held in a pushed-in position by a locking portion and maintains the tape recorder in a tape high-speed feed mode with the magnetic head in light contact with the tape when in the push-in position together with the playback operation member; When the playback operation member and the high-speed feed operation member are both in the push-in position and a preset specific tape position is detected by the magnetic head, the detection signal stops the tape drive motor, and then the playback operation is performed. a motor control means for restarting the motor when only the high-speed feed operation member is returned to the high-speed feed operation member leaving the operation member; and a stop operation member engagement member for the second locking member by a pushing operation. By engaging with the mating portion, the high-speed feed operation member is released from the high-speed feed operation member locking portion, and by further pushing operation, the high-speed feed operation member is engaged with the stop operation member engagement portion of the first locking member. a self-resetting stop operation member that releases the regeneration operation member from the regeneration operation member engagement portion; and a stop operation member provided on the second locking member, and
When the locking member retains the high-speed feed operation member in the push-in position by its high-speed feed operation member locking portion, the amount of push-in movement of the stop operation member is increased by an amount greater than the amount required to release the fast-forward operation member. 1. A tape position search device for a tape recorder, comprising: a stop operation member movement restriction section that restricts the amount of movement of the operation member to be smaller than the amount required to release the operation member. (2) The tape position search device for a tape recorder according to claim 1, wherein the stop operation member movement amount regulating portion is provided continuously to the stop operation member engaging portion.