JPS5821340B2 - tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation button mechanism for a tape recorder, and more particularly to an operation button mechanism for operating a tape recorder into a recording state, a playback state, and a tape rewinding state.

As is well known, there are various types of operation button mechanisms for tape recorders, such as push button type and slide type, but there are also buttons for recording, playback, rewinding the tape, fast forwarding the tape, etc. Operation buttons are provided independently, and when a desired operation is to be performed on the tape recorder, the operation button corresponding to the operation is activated.

However, arranging multiple operation buttons on a tape recorder takes up a lot of space, makes operations complicated and cumbersome, and
There is a risk that the design of the tape recorder may be damaged.

SUMMARY OF THE INVENTION In order to eliminate the drawbacks of conventional operation buttons as described above, an object of the present invention is to provide a tape recorder in which at least recording, playback, and tape rewinding operations can be performed using a single operation button. Provides an operation button mechanism.

Hereinafter, the present invention will be explained with reference to an illustrated embodiment.

1 to 3 are diagrams showing the external appearance of a cassette tape recorder 1 to which the present invention is applied, in which FIG. 1 is a side view thereof, FIG. 2 is a plan view thereof, and FIG. 3 is a diagram thereof. It is a front view showing the front.

This tape recorder 1 has a lid 1a for a cassette storage chamber that can be opened and closed by a hinge 2 on the front half of the top surface of the tape recorder 1, and a cassette tape can be detachably loaded into the cassette storage chamber by opening the lid 1a. .

Further, the lid 1a is provided with a transparent window 1b so that the storage state of the cassette tape and the winding state of the tape can be observed from the outside (see FIG. 2).

Further, on the front surface of the tape recorder (see FIG. 3), there are provided a volume control knob 3, a built-in microphone net 4, an earphone connection jack 5, an external microphone connection jack 6, and the like.

In addition, the audio output reproduced by the reproduction magnetic head is transmitted to the recorder 1 corresponding to a large number of air holes 1 (see FIG. 2) bored in the rear half of the top surface of the tape recorder 1.
The sound is emitted from a speaker (not shown) disposed inside.

The operation button 8 in the operation button mechanism of the tape recorder according to the present invention is the operation button 8 of the tape recorder 1 formed as described above.
It is disposed on one outer side surface 1c so as to be able to slide along the longitudinal direction of the same surface.

This operation button 8 is formed into a rectangular and thin shape, and a mark 8a is provided at the center of its upper edge.

Further, on the outer surface 1c facing the upper edge of the button 8, as shown in FIG.
is provided.

That is, the recording mark 9b is provided on the right side of the stop mark 9a, in other words, on the side near the front of the tape recorder 1, and the recording mark 9b is provided on the opposite side, that is, on the left side of the stop mark 9a. A reproduction mark 9c is provided.

A tape rewind mark 9d is provided to the left of the playback mark 9c, that is, near the rear of the recorder 1.

By sliding the operation button 8 on each of the marks 93 to 9d provided in this way and aligning the mark 8a with a desired mark, the cheap recorder 1 can perform the desired operation. ing.

As shown in FIG. 4, this operating mechanism includes an operation panel 10 disposed inside the tape recorder 1, a relay lever 11,
Head support member 12 and pinch roller support arm 13
It is made up of.

The operation plate 10 is integrally attached to the operation button 8, and has three guide holes 10a and 10b.

10c is drilled.

The guide holes 10a to 10c are respectively provided toward the sliding direction of the operation button 8, and are fitted into pins 14a, 14b, and 14c, respectively, set up on a stationary member (not shown). .

The operation panel 10 is provided with a click stop mechanism near the operation button 8 attached thereto.

This click stop mechanism is provided by three holes drilled in the operation panel 10.
Two round holes 15a, 15b.

15c, and a ball 16 that elastically engages with one of the round holes 15a to 15c.

That is, as shown in FIG. 5, the three round holes 15a1-
A concave hole 17a is provided in the immovable board 11 disposed below the operation plate 10 having a hole 15c, and a spring 18 and the ball 16 are dropped into the hole. Ball 16 given the rising habit due to the elasticity of
is adapted to engage with one of the round holes 15a to 15c.

When the ball 16 is engaged with the circular hole 15b at the center of the click stop mechanism constructed in this way, the mark 8a of the operation button 8 is aligned with the stop mark 9a, as shown in FIG. , at this time, the tape recorder 1 is in an inactive state.

Also, slide the operation button 8 to change the mark 8a to the recording mark 9.
b, the operation plate 10 that has been slid as the operation button 8 is slid is engaged with the ball 16 in its round hole 15c and is stopped at that position.

Further, when the operation button 8 is slid in the playback direction opposite to the recording direction so that the mark 8a matches the playback mark 9c, the operation plate 10 is moved to that position by the engagement of the ball 16 with the round hole 15a. will be stopped.

Returning to FIG. 4 again, a protruding part 10a, which is a first suppressing part, is formed at the end of the operation panel 10 that extends toward the inside of the tape recorder, and the protruding part 10d is a head that will be described later. A pin 19, which is a pressed portion on the support member 12, is pushed and moved.

Furthermore, hanging pins 20.21, which are second and third pressing parts, are fixedly planted on the operation plate 10 at the left and right, above and below, with the pin 14b fitted in the guide slot 10b as a symmetrical fulcrum.

That is, the hanging pin 20 is arranged below the left side of the pin 14b, and the hanging pin 21 is arranged above the right side of the pin 14b.

This rain hanging pin 20°21 is connected to the relay lever 1 described below.
It plays the role of swinging 1.

The relay lever 11 is arranged below the operation panel 10.

This relay lever 11 has an L-shaped planar shape, and has a hole provided near the tip of the horizontal portion or the pin 1.
4b, and swings about the same pin 14b as a fulcrum.

Further, the tip portion 11a of the horizontal portion is inclined toward the hanging pin 21, and the inclined edge 11b of the upper edge thereof is inclined toward the hanging pin 21.
Furthermore, on the lower edge of the horizontal portion on the left side of the swing fulcrum, there is an inclined edge 1 that abuts on the pin 20.
A protruding edge 11c having a diameter 1c is formed.

A pin 2 is attached to the tip of the vertical part of the relay lever 11.
2 is planted, and a compressible connection spring 23 is stretched between this pin and a pin 19, which will be described later.

On the other hand, the pin 19 is set up on the head support member 12.

The head support member 12 has a base swingably supported by a support shaft 24 fixed to an immovable member (not shown), and a part of its free end extends above the operation plate 10. It's out.

The pin 19 is installed at the upper edge of the head support portion 12 on the right side of the middle.

The head support member 12 also has a partially arcuate guide hole 12a near the tip of its free end.

12b is bored, and the concave holes fit into hanging pins 25a, 25b of a stationary member (not shown), thereby regulating the range of swing of the head support member 12.

In normal life, the head support member 12 is rotated clockwise around the support shaft 24 by a compressible coil spring 28 stretched between a pin 26 fixed to the upper edge of the member near the left side of the center and an immovable pin 27. However, the rotation due to the same behavior is caused by the guide slots 12a, 12b and the pin 25.
a and 25b, and in this state, the magnetic recording/reproducing head 29 mounted and supported on the free end of the head support member 12 is at a position spaced apart from the magnetic surface of the magnetic tape T. be.

On the thus formed head support member 12, a pinch roller support arm 13 is further disposed in an overlapping manner.

One end of the pinch roller support arm 13 is swingably supported by the support shaft 24, and the pinch roller 30 is rotatably supported on the other end.

This pinch roller 30 is disposed at a position facing a capstan 31 in the tape recorder 1, and when the arm 13 rotates counterclockwise around the spindle 24, the pinch roller 30 is connected to the capstan via the magnetic tape T. It presses against the stun 31 and cooperates with the capstan to feed the tape T at a constant speed.

This pinch roller support arm 13 is wound around a support shaft 24, and the support 24 is supported by a torsion spring 32 whose one end is stretched around the pin 26 and the other end is stretched around the outer edge of the arm. Although it has a tendency to rotate counterclockwise around its circumference, its inner edge comes into contact with the pin 26 on the head support member 12, thereby preventing the rotation due to the habit.

Therefore, when the head support member 12 rotates counterclockwise around the support shaft 24 against its own tendency, the arm 13 rotates counterclockwise around the support shaft 24 together with the support member 12. rotate in the direction.

The elasticity of the coil spring 28 is stronger than that of the connection spring 23 in terms of flatness.

The operating mechanism is configured as described above.

Next, to explain its operation, first, in the stopped state shown in FIG. 9a, the lid 1a is opened, the cassette tape is loaded into the cassette storage chamber, the magnetic tape T is stretched between the capstan 31 and the pinch roller 30, and the lid 1a is closed.

To put the tape recorder 1 into the recording state from this stopped state, the operation button 8 is slid toward the front of the recorder so that the mark 8a matches the recording mark 9b (see FIG. 1).

When the operation button 8 is slid, the operation plate 10 also slides together while being guided by the guide slots 10 to 10c.

At the position where the mark 8a of the operation button 8 matches the recording mark 9b, the ball 16 engages with the round hole 15c, as shown in FIG. 6, so the operation plate 10 stops at that position.

When the operation plate 10 slides as described above, the hanging pin 20 of the same plate pushes up the inclined edge 11c of the relay lever 11, so the relay lever 11 rotates clockwise around the pin 14b using the pin 14b as a fulcrum. move.

When this rotation is made, the pin 19 connected by the connecting spring 23 is pulled upward, so the head support member 12
rotates counterclockwise around the support shaft 24 together with the pinch roller support arm 13.

When this rotates, the pinch roller 30
The magnetic head 29 is brought into pressure contact with the capstan 31 via the tape T, and the head surface of the magnetic head 29 is brought into contact with the magnetic surface of the tape T.

Therefore, the tape recorder 1 enters the recording state.

At this time, an erasing head (not shown) is brought into pressure contact with the tape T to erase unnecessary recorded signals before recording.

Next, to put the tape recorder 1 into playback mode, slide the operation button 8 toward the rear of the tape recorder 1 and align the mark 8a with the playback mark 9c (see Figure 1). good.

When the operation button 8 is moved to the playback position, the operation plate 10 that has been slid together with the button stops at a position where the round hole 15a of the click stop mechanism engages the ball 16, as shown in FIG.

When the operation plate 10 slides, the hanging pin 21 of the same plate pushes the inclined edge 11b of the upper edge of the relay lever 11, so that the relay lever 11 rotates clockwise around the pin 14b.

When this rotates, the pin 19 is pulled up via the connection spring 23, so the head support member 12 and the pinch roller support arm 13 rotate counterclockwise around the support shaft 24.
The pinch roller 30 connects to the capstan 3 via the tape T.
1, and the magnetic head 29 comes into contact with the stretched tape T.

Therefore, the tape recorder 1 enters the playback state.

Next, in order to put the tape recorder 1 into the tape rewind state, press the operation button 8 further on the tape recorder 1 from the above playback position.
The mark 8a may be aligned with the tape rewind mark 9d (see FIG. 1) by sliding it toward the rear edge of the tape.

In this case, the click stop mechanism does not operate, and therefore, the tape is rewinded only while the operation button 8 is being pressed.

Press the operation button 8 to the playback position, that is, mark 8a or playback mark 9.
When the operation plate 10 is moved from the position corresponding to the mark 8a to the tape rewinding position, that is, the position corresponding to the mark 8a or the tape rewinding mark 9d, the operation plate 10 further slides from the position shown in FIG. Move to the position shown in the diagram.

When this slides, the inclined edge 11b is further pushed by the pin 21, so the relay lever 11 further rotates clockwise around the pin 14b and stretches the connecting spring 23.
At this time, the protrusion 10d of the operation plate 10 moves as the operation plate 10 slides, comes into contact with the pin 19, and pushes it.

Therefore, the head support member 12 and the pinch roller support arm 13 rotate in a direction opposite to the rotation direction thereof, that is, in a clockwise direction, thereby separating the pinch roller 30 and the magnetic head 29 from the tape T.

Then, the feeding direction of the tape T is switched by a mechanism not shown.

Therefore, the tape rewinding operation is performed.

As described above, the actuation mechanism works in conjunction with the sliding movement of one operation button 8.

In addition, the tape recorders described in the embodiments of FIGS. 1 to 8 above have only the function of a normal tape recorder, or are they designed to be used for dictation recording. In case 5, that is, when using a dictation machine, the discrimination signal must also be recorded.

This refers to the necessary records that should actually be written in writing when reproducing the recorded contents of a tape recording and making it into writing by type printing or writing, and how to write that record in writing. This is a signal to distinguish between records that are explanations and are not actually written in writing.

Therefore, in the case of a dictation machine, in addition to the functions of a normal tape recorder, it must have the function of recording the above-mentioned discrimination signal in the recording state.

This operation of recording the discrimination signal is called a cue operation in the dictation machine, and by operating the cue button in the recording state, the discrimination signal is recorded on the tape.

Next, an embodiment will be described in which this cue operation is performed using the operation button mechanism of the present invention.

In the case of a dictation machine, as shown in FIG. 9, the mark on the outer surface 101c of the dictation tape recorder 101 is a cue mark 9e adjacent to the recording mark 9b.

Then, when the mark 8a of the operation button 8 is aligned with the recording mark 9b and the cue operation is performed to record the discrimination signal in the recording state shown in FIG. to align the mark 8a with the cue mark 9e.

Further, in this case, the click stop mechanism does not operate, and the cue operation is performed only while the operation button 8 is pressed.

When the operation button 8 is moved from the recording position to the cue operation position, the operation plate 10 further slides from the position shown in FIG. 6 to the position shown in FIG. 10.

When it slides further, the inclined edge 11c is further pushed by the pin 20, so that the relay lever 11 further rotates clockwise around the pin 14b and stretches the spring 23.

However, the head support member 12 and the pinch caller support arm 13 have a guide slot 12a.

12b and pins 25a and 25b, the range of rotation of the head support member 12 is limited, so that the head support member 12 is held at the recording position.

On the other hand, when the operating panel 10 is moved to the state shown in FIG. 10, the upper edge 10e of the operating panel 10 closes a switch S that operates an oscillator (not shown) for generating a discrimination signal.

When this switch S is closed, a discrimination signal of, for example, 400 Hz is applied from the oscillator to the magnetic head 29, so that the discrimination signal is recorded on the tape T.

When the finger pressure is removed from the operation button 8, the operation plate 10 and the operation button 8 return to the recording position shown in FIG. 6 due to the elasticity of the spring 23, and recording is continued again.

Note that the frequency of the discrimination signal is not limited to 400Hz.

In short, it goes without saying that any frequency can be used as long as it can be clearly distinguished from the normal recording frequency.

This is an example of a case where the operation button mechanism of the present invention is applied to a dictation tape recorder.

Incidentally, in the dictation tape recorder shown in FIGS. 9 and 10, the discrimination signal recorded by the cue operation was one type of 400 Hz signal.

Recently, however, a cassette tape recorded using two types of discrimination signals with different frequencies in a dictation machine is run on a dedicated playback machine before it is turned into a written document. There is a dedicated recycling machine that uses thermal paper to indicate the percentage of carbon content.

That is, a tape recorded using, for example, a 400 Hz discrimination signal and a 60 Hz discrimination signal as half-discrimination signals is run on a playback-only machine, the 400 Hz discrimination signal is detected, and this is marked on thermal paper. Furthermore, by detecting a 60 Hz discrimination signal and marking it on thermal paper, the length of the required recorded sentences and the length of the interval between the same recorded sentences can be known in advance.

According to this playback-only machine, when the recorded contents of a magnetic tape are to be converted into a written document, the length of the necessary recorded sentences and the length of the interval between the necessary recorded sentences can be known in advance. It is possible to determine the proportion of space for recorded sentences.

Next, an embodiment of the operation button mechanism of the present invention for recording these two types of discrimination signals on tape will be described.

; In this case, the dictation tape recorder 201 is
As shown in Figure 1, two discrimination signal marks 5ING1,
5ING2 is provided next to the recording mark 9b on its outer surface 201c.

Then, in order to match the mark 8a of the operation button 8 with the recording mark 9b and record a half-distinct signal, for example, a discrimination signal for detecting the length of a recorded sentence, in the recording state shown in FIG. Slide the button 8 on the front side of the recorder 201 to align the mark 8a with the discrimination signal mark 5ING1.

In this case, the operation of the operating mechanism by the operating panel 10 is the same as in the case of the cue operation shown in FIG. (not shown), a discrimination signal of, for example, 4QOHZ is applied to the magnetic head 29 from the same oscillator, and a 4QOHZ discrimination signal is applied to the tape T to detect the length of the recorded sentence.
A discrimination signal of 00Hz is recorded.

Next, in order to record another discrimination signal for detecting the length of the interval between the above recorded sentence and the next recorded sentence, press the operation button 8 shown in FIG. The mark 8a is made to match the discrimination signal mark 5ING2.

Then, the operation plate 10 further slides from the position shown in FIG. 10 and moves to the position shown in FIG. 12.

When this moves, the inclined edge 11c is further pushed by the pin 20, so that the relay lever 11 further rotates clockwise around the pin 14b, and the spring 23 is stretched.

However, the head support member 12 and the pinch roller support arm 13 are maintained in the recording state as in the case of FIG. 10 above.

Further, when the operating panel 10 moves to the state shown in FIG. 12, the movable contact piece of the switch S is pushed by the upper edge 10e, and its contacts S1 and S2 are closed, so that the oscillator oscillates at 400 Hz. The frequency is switched to, for example, 60 Hz, and the same 60 Hz discrimination signal is recorded on the tape T by the magnetic head 29.

In this way, two types of discrimination signals are recorded on the tape T.

Further, when the operation button 8 is moved to the discrimination signal recording position, the click stop mechanism of the operation plate 10 does not operate, so when the finger pressure is removed from the operation button 8, the recorder 201 is moved to the operation plate 10 by the tightening elasticity of the spring 23. Since the operation button 8 is restored to the recording position, the recording state is returned.

In FIG. 12, an auxiliary mechanism for backward movement of the operating panel 10 is provided between the operating panel 10 and the switch S.

This auxiliary mechanism consists of an auxiliary plate 36 whose swinging fulcrum is pivotally attached to a support shaft 35, a guide elongated hole 36a drilled in the plate that regulates the swinging range of the plate, and an elongated guide hole 36a inside the elongated hole 36a. An immovable pin 37 that fits into the auxiliary plate 36 , an engaging portion 36 b that is provided at one end of the auxiliary plate 36 and engages with the operation plate 10 as appropriate, and the auxiliary plate 36
The spring 29 extends between the other end and the immovable pin 38 and gives the auxiliary plate 36 the habit of swinging clockwise around the support shaft 35. When the operation plate 10 moves to the signal recording position, the engaging portion 36b engages with the operation plate 10, thereby assisting the return movement of the operation plate 10.

look at

As described above, according to the present invention, the disadvantages of the operation buttons in conventional tape recorders and dictation machines are solved, and an operation button mechanism for a tape recorder is provided in which each operation can be performed by operating a single operation button. be able to.

According to the present invention, since there is only one operation button, the button does not take up much space, the operation is easy, and there is no risk that the design of the tape recorder will be spoiled by the operation button.

[Brief explanation of drawings]

; FIG. 1 is a side view showing an example of a tape recorder to which the present invention is applied; FIG. 2 is a plan view of the tape recorder shown in FIG. 1; FIG. FIG. 4 is a plan view of the operating mechanism of the tape recorder operated by the operation button of the present invention, and FIG. 5 is a sectional view of the click stop mechanism in FIG. 4. , FIGS. 6 to 8 are operational views of the operating mechanism shown in FIG. 4 above, FIG. 9 is a side view when the operation button mechanism of the present invention is applied to a dictation tape recorder, and FIG. Plan view of the operating mechanism of the tape recorder of FIG. 9, No. 11
FIG. 12 is a side view of another dictation tape recorder to which the operation button mechanism of the present invention is applied, and FIG.
FIG. 2 is a plan view of the operating mechanism of the tape recorder of FIG. 1; 1.101,201...Tape recorder, 1
c, 101c, 201c...Outer wall surface, 8...
...Operation button.

Claims (1)

[Scope of Claims] 1. A swingable head support member on which a magnetic head and a pinch roller are arranged; a swingable relay lever connected to the head support member via a connecting spring; and a tape. A first pressing part is integrally attached to one operation button that slides along the outer wall surface of the recorder, and is provided opposite to the pressed part of the head support member, and a first pressing part that sandwiches the relay lever and presses the relay lever. and an operation panel having second and third pressing parts provided at substantially symmetrical positions with respect to the rotation fulcrum, and when the operation button is slid in one direction from the stop position of the tape recorder to enter the recording state. As the relay lever is rotated by the moving second suppressor, the head support member rotates forward, presses the pinch roller against the capstan, and simultaneously brings the magnetic head into contact with the tape. and slide the operation button from the stop position in the opposite direction to the one direction to enter the playback state.
Due to the movement of the suppressing part, the relay lever and the head support member rotate in the same direction as in the recording state,
Connect the pinch roller above to the above. At the same time as the magnetic head is brought into pressure contact with the stand, the magnetic head is brought into contact with the tape, and the operation button is slid from the playback position in a direction opposite to the one direction to bring the tape into a rewind state. The operation of the tape recorder is characterized in that the pressed portion is pressed by the pressing portion of the tape recorder, rotates backward, and separates the pinch roller from the capstan and separates the magnetic head from the tape. Button mechanism.