JPS61278009A - cassette tape recorder - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a cassette tape recorder in which movement of an erasing head is controlled by operating a recording button.

BACKGROUND OF THE INVENTION In recent years, cassette tape recorders have become smaller, thinner, and lighter. Particularly in portable cassette two-page tape recorders, the operation buttons are smaller and the distance between the buttons is narrower, and there is a noticeable trend toward smaller, thinner, and lighter weight devices.

The above-described cassette tape recorder will be described below with reference to the drawings.

6, 7, and 8 show operating states of a conventional cassette tape recorder. In FIG. 6, reference numeral 1 indicates the housing of the cassette tape recorder main body. 2 is a recording button, which is integrated with a recording board (not shown). 3
is an erase head, which is placed on an erase lever (not shown);
The erase lever is interlocked with the recording board. Reference numeral 04 is a playback button, which is integrated with a head board (not shown) on which the recording/reproducing head 5 is mounted.

The operation of the cassette/tape recorder constructed as described above will be explained below. FIG. 6 shows a stopped state in which the recording/reproducing head 5 and the erasing head 3 are separated from the cassette tape 6.

When the playback button 4 is operated with the finger 7 from the stopped state shown in FIG. 6, the recording/playback 3 base is placed on the head board (not shown).

The head comes into contact with a magnetic tape (not shown) and enters the playback state as shown in FIG. At this time, the erasing knob 5 does not come into contact with the magnetic tape (not shown) unless the recording button 2 integrated with the recording board (not shown) is operated, and the recorded tape is not erased. There is no.

FIG. 8 shows the relationship between the amount of movement of the recording button and the amount of insertion of the erasing head. When the recording button 2 in the stopped state is operated to enter the recording state, it becomes the position of the recording button 2a.

The amount of movement of the recording buttons 2 to 2a at that time is A. Next, the amount of movement (the amount of penetration) of the erasing head 3a from the position of the stopped state to the recording state becomes B. At this time, the operational relationship between the record buttons 2 to 2a and the erase heads 3 to 3a is as shown in the lower diagram of FIG. are in a proportional relationship, and the erasing head 3 moves to a predetermined depth B. C is the play amount of the recording button, during which the erasing head 3 does not move.

Problems to be Solved by the Invention However, in the configuration as described above, in order to make the cassette tape recorder smaller and thinner, the distance between the operation buttons becomes narrower, especially in a cassette tape recorder with a recording function. The record button is located near the playback button, and as shown in Figure 6, when operating playback button 3 with finger 7, the tip and part of finger 7 hits record button 2, causing record button 2 to be pressed at the same time. Something happened. Therefore, if you try to press the playback button 3 with your finger 7 to change from the stop state shown in FIG. 6 to the playback state shown in FIG. When the recording button 2 is pressed, the erasing head 6 moves toward the magnetic tape (not shown) in conjunction with the movement of the recording board (not shown) that is integrated with the recording button 2. When moving, the erasing head 5 comes into contact with the magnetic tape, resulting in the problem of erasing the already recorded magnetic tape.

Means for Solving the Problems In order to solve the above-mentioned problems, the cassette tape recorder of the present invention includes a head 5 vane board on which a recording/playback head is mounted, and a playback head which is integrated with this head board. An erase lever on which a button and an erase head are mounted, a recording board configured so that the erase lever is interlocked, a recording button integrated with the recording board, and a recording button that is pushed from a stopped state to a predetermined position. The erasing head is equipped with a control means that operates the erasing head when the erasing head is in operation.

Operation The present invention has a control means that operates the erasing head when the recording button is pushed from the stopped state to a predetermined position with the above-described structure. Even if I'm pushed a little,
Since the erasing head does not operate when the tape is pushed in at a predetermined position, the erasing head does not come into contact with the magnetic tape. Therefore, the operation button can be made smaller and the recording button can be placed closer to the playback button, making the cassette tape recorder more compact.

It becomes possible to make it thinner and lighter.

Example Hereinafter, a 6-page cassette tape recorder according to an embodiment of the present invention will be described. This will be explained with reference to the drawings.

FIG. 1 shows a stopped state of a cassette tape recorder in an embodiment of the present invention. In Figure 1, 1
1 is a housing of the cassette tape recorder main body. 12 is a tape cassette, 13 is a magnetic tape, and 14 is a recording/reproducing head, which are mounted on a head substrate 15. Reference numeral 16 denotes a playback button, which is integrated with the head substrate 15. Reference numeral 17 denotes an erasing head, which is placed on the erasing lever 18. Erase 1/
The bar 18 is rotatably mounted around a shaft 19, and is biased in the direction of the arrow {circle around (2)} by a control spring 20.

A 21-piece recording board is integrated with a recording button 22. Reference numeral 23 denotes a control lever for controlling the movement of the erasing head 17, which is rotatably mounted around a shaft 24, and the bent portion 23a of the control lever 23 engages with the end surface 18a of the erasing lever 18. There is. The end surface 23b of the control lever 23 is in contact with the bent portion 21a of the recording board 21, and when the recording button 22, which is integrated with the recording board 21, moves, the erasing head 1 placed on the erasing lever 18 is removed. Movement 7
... 5 It controls the movement.

The operation of the cassette tape recorder of this embodiment configured as described above will be described below with reference to the drawings.

Fig. 2 shows the playback state, and when the playback button 16 integrated with the head board 15 is operated in the direction of the arrow ■ from the stop state of Fig. 1, the head board 16 changes as shown in the figure. If it is not locked with the lock plate, the playing state will be maintained.

In this playback state, the recording/reproducing head 14 is connected to the magnetic tape 1.
3, but the erase node 17 is in contact with the magnetic tape 13.
Since the magnetic tape 13 is not in contact with the magnetic tape 13 and is separated from the magnetic tape 13, the magnetic tape 13 is never erased.

Next, FIG. 3 shows a state where the recording button is pressed at the stop position from the playback state of FIG. 2. Since the record button 22 is located near the playback button 16, when the playback button 16 is operated with a finger (not shown), the finger hits the record button 22 and is slightly pressed from the stopped position. However, even if the recording button 22 integrated with the recording board 21 is pressed by a predetermined amount E-j from the stopped state, even if the recording board 21 is moved by the control lever 23, the bending part 21a of the recording board 21 will not be controlled. It is engaged with the end surface 23b of the lever 23, and the end surface 18a of the erasing lever 18 is a lever that is engaged with the bent portion 23& of the control lever 23, and maintains the same position as the control lever 23 in the stopped state. Therefore, the erasing head 17 placed on the erasing lever 18 does not come into contact with the magnetic tape 13 at the same position as in the stopped state.

FIG. 4 shows a recording state in which the recording button is pressed further than a predetermined amount from the stop position from the playback state shown in FIG. As shown in FIG. 3, while the recording button 22 was moved to the predetermined position E, the control lever 23 remained in the same position as in the stopped state, but as shown in FIG. Predetermined position”
: When pushed in further, the bent portion 21a of the recording board 21 comes off the end surface 23b of the control lever 23, and the control lever 23 rotates around the shaft 24. As shown in FIG. 4, the control lever 23 rotates. When the control lever 23 is moved, the bent portion 23a of the control lever 23 and the end surface 18a of the erasing lever 18 are disengaged, and the erasing lever 18 is rotated toward the magnetic tape 13 by the control spring 20 around the shaft 9 vane 19. do. The erasing head 17 has a guide section (not shown).
The magnetic tape 13 moves to a predetermined position and comes into contact with the magnetic tape 13, making it possible to erase the magnetic tape 13.

FIG. 5 shows the relationship between the amount of movement of the record button and the amount of insertion of the erase head. ○ A control means (not shown) for controlling the movement of the record button and the erase head moves the record button 22 in the stopped state to the stop position. At position 22b, which has been operated from 22& to a predetermined amount E, the erasing head 17 in the stopped state is at the stopped position 1γd.
If the recording button 22 is pushed further from the predetermined position without moving to the position where it is held, the erasing head 17 will move to the stop position 1a.
Move to the predetermined entry position 17b-IH (
Move amount 2B). C is the play amount of the recording button 22,
Push the recording button 22 further from the position 17b where the erasing head 17 has moved into a predetermined position, and reach the position 22ci where the recording board 21 is locked with a force/lock plate (not shown).
In this case, it is difficult for the erasing head 17 to move from the predetermined entry position 17b.

Page 10-7 As described above, according to this embodiment, the head substrate 15 on which the recording head 14 is mounted, the playback button 16 integrated with this head substrate 15, and the erasing head 17 are mounted. an erase lever 18, a recording board 21 configured to interlock with the erase lever, and a recording button 22 configured integrally with the recording board 21, and when the recording button 22 is pushed from a stopped state to a predetermined position. , by providing a control lever 23 that moves the erasing head 17, the finger used when operating the playback button 16 touches the record button 22, and the playback button 1
When pressing 6, the record button 22 is also pushed in a little, but the erase head 17 will not operate unless the control lever 23 pushes the record button 22 to a predetermined position 21, so the record button 22 is provided near the playback button 16. This makes it possible to make the cassette tape recorder smaller, thinner, and lighter.

Effects of the Invention As described above, the present invention includes a head substrate on which a recording/reproducing head is mounted, a playback button integrally formed with the head substrate, and an erase lever on which an erase head is mounted.
A recording board configured to interlock with an erasing lever, and a recording button integrated with the recording board, and a control means that moves the erasing head when the recording button is pushed from a stopped state to a predetermined position. By providing this, the finger you operate when operating the playback button becomes the record button, and even if you press the record button when you press the playback button, the erase head will not move if the record button is in the specified position. The recording button can be made smaller, the distance between the buttons can be shortened, and the recording button can be provided near the playback needle, making it possible to make the cassette tape recorder smaller, thinner, and lighter.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a stopped state of a cassette tape recorder according to an embodiment of the present invention, FIG. 2 is a plan view showing a playback state shown in FIG. 1, and FIG. 3 is a plan view showing a playback state shown in FIG. FIG. 4 is a plan view showing the recording state when the record button is further pushed in from FIG. 3, and FIG. An explanatory diagram showing the relationship between the amount of insertion of the head, and Fig. 6 is an external view showing the stopped state of a conventional cassette tape recorder, No. 5 Y.
This figure is an external view showing the playback state when the playback button is pushed in from FIG. 6, and FIG. 8 is an explanatory diagram showing the relationship between the amount of movement of the record button and the amount of insertion of the erasing head of a conventional cassette tape recorder. 11...Housing, 12...Cassette tape, 13...Magnetic tape, 19...Shaft, 20...
... Control spring, 23 ... Control lever, 24.
·····shaft. Name of agent Patent attorney Toshio Nakao and 1 other person - Iku<-'') Yu<>J Kansen- Figure 6 Figure 7 Figure 8 Ashise Misaki (

Claims (1)

[Claims] A head board on which a recording/playback head is mounted, a playback button integrated with this head board, an erasing lever on which an erasing head is mounted, a recording board configured so that the erasing lever is interlocked, and a recording board. A cassette tape recorder comprising a recording button integrally formed with the cassette tape recorder, and further comprising a control means for moving an erasing head to an operating position when the recording button is pushed from a stopped state to a predetermined position.