JPH053061B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operation button device for setting various modes on a tape recorder.

In Japan, push-button operation devices are preferred for tape recorders, but in other countries, sometimes in Europe and America, slide-type operation devices are preferred. However, with conventional slide-type operation devices, each time the slide-type button is moved between the recording mode setting position and the stop mode setting position, the magnetic head comes into contact with and separates from the magnetic tape, causing transient noise. ing.

The present invention was made under the above circumstances, and an object of the present invention is to provide an operating device for a tape recorder that uses a sliding operating member but does not generate transient noise even when recording and stopping are repeated. It is.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows a housing 10 of a tape recorder.
A sliding button 12 is shown that changes position by sliding along the outer surface of the button.

The slide button 12 is provided with a push button 14 that is movable together with the slide button 12. The push button 14 is movable within the slide button 12 in a direction substantially perpendicular to the outer surface of the housing 10 of the tape recorder.

The push button 14 has a first lever 1 extending in a direction substantially perpendicular to the outer surface of the housing 10 of the tape recorder, that is, in the vertical direction in the drawing.
One end portion of 6, that is, the upper end portion in the drawing, is connected so as to be movable in the vertical direction and swingable in parallel to the plane of the paper. Such a connection is possible, for example, by a combination of an elongated hole formed at one end of the first lever 16 and extending in the vertical direction and a pin inserted through the elongated hole and fixed to the push button 14.

The endless portion of the first lever 16, that is, the lower end in the drawing, is also movable in the vertical direction with respect to a chassis (not shown) that is housed in the housing 10 of the tape recorder and is arranged parallel to the plane of the paper. Moreover, they are connected so as to be able to swing freely parallel to the plane of the paper. Such a connection, even if the first
This is possible by a combination of a long hole 18 formed at the other end of the lever 16 and extending in the vertical direction, and a fixing pin 20 inserted through the long hole 18 and fixed to a chassis (not shown).

Further, the first lever 16 is always urged upward in the drawing by the urging means 22.

Further, the other end surface of the first lever 16, that is, the lower end surface in the drawing, faces the erroneous erasure prevention lever 24 in the vertical direction.

The first lever 16 has a curved portion 26 protruding to the right in an intermediate region in the vertical direction.

In the space surrounded by the curved portion 26, the second
One end of the lever 28 is fixed to a chassis (not shown) so as to be swingable in parallel to the plane of the paper. The upper surface of the other end of the second lever 28 is in contact with a fixing pin 30 fixed to a chassis (not shown), and faces the upper base of the curved part 26 of the second lever 28. . The lower surface of the other end of the second lever 28 is in contact from above with an erasing head 32 attached to a chassis (not shown) so as to be movable vertically parallel to the plane of the paper. The erasing head 32 is urged upward by a biasing means 34, and the biasing force of the biasing means 34 causes the second lever 28 to
is biased in the clockwise direction in the figure.

In this embodiment, the erase head 32 is comprised of a permanent magnet and is spaced above and spaced from the magnetic storage tape 36 contained within the housing 10 of the tape recorder. The position of the erase head 32 at this time is defined as the first position of the erase head 32.

As shown in FIG. 1, the first lever 16 has first and second notches 38 and 40 near the upper end and the lower end of the right side surface.

Moreover, as shown in FIG. 1, the sliding button 12 is
A first tongue portion 42 extends vertically along the first lever 16, and a second tongue portion 42 extends rightward along the inner surface of the housing 10 from the right position of the first tongue portion 42. It has a tongue piece part 44.

A hook lever 46 is rotatably attached to the first tongue portion 42 in a state parallel to the plane of the paper. The hook lever 46 has a hook 48 at the upper end of the left side surface, and the hook 48 contacts the right side surface of the first lever 16 directly below the first notch 38 . Further, the right side surface of the lower end of the foot lever 46 is located to the left of a fixing pin 50 fixed to a chassis (not shown), and is spaced apart from the fixing pin 50. The foot lever 46 is biased counterclockwise in the drawing by a biasing means 52.

A notch 54 is formed on the lower surface of the right end portion of the slide button 12. Also sliding button 1
A third lever 56, whose right end is attached to a chassis (not shown), is arranged below the lower surface of the right end of the lever 2 so that it extends in the left-right direction and is rotatable in a pair of images parallel to the paper surface. ing. A substantially triangular protrusion 58 is formed on the upper side of the third lever 56, and the left side of the protrusion 58 abuts the right end of the lower side of the second tongue portion 44 of the slide button 12. ing. The upper surface of the third lever 56 is in contact with a fixing pin 60 fixed to a chassis (not shown). Further, the third lever 56 is biased clockwise in the drawing by a biasing means 62.

Below the second tongue portion 44 of the slide button 12 is a fourth lever 64 that is attached to a chassis (not shown) and extends substantially in the left-right direction so as to be rotatable parallel to the plane of the paper. It is arranged.

The right end of the fourth lever 64 is connected to the third lever 5.
The third lever 56 is located below the left end of the third lever 56, and is disposed within the movement locus of the left end of the third lever 56. Further, a substantially triangular protrusion 66 is formed on the upper surface of the left end of the fourth lever 64, and the right side of the protrusion 66 faces the left end surface of the second tongue portion 44 of the slide button 12. ing. The left end of the fourth lever 64 is swingably connected to a recording/reproducing head 68 attached to a chassis (not shown) so as to be movable vertically parallel to the plane of the paper.
Such a connection can be achieved, for example, by fixing two pins 72, 74 on the support lever 70 of the recording/reproducing head 68, spaced apart from each other in the vertical direction.
This is possible by inserting the left end of the fourth lever 64 between the levers 74 and 74.

In this embodiment, the read/write head 68 is also located above and spaced from the magnetic recording tape 36, which is housed within the tape recorder housing 10. The position of the recording/reproducing head 68 at this time is defined as the first position of the recording/reproducing head 68.

The fourth lever 64 is biased clockwise in the drawing by a biasing means 76 . The fourth lever 64 also has a branch 78 extending downward to the left on the lower surface of the left end near the center of rotation.

The branch portion 78 of the fourth lever 64 extends in the vertical direction and is connected to a fifth lever 8 that is rotatably attached to a chassis (not shown) in a state parallel to the paper surface.
It is in contact with the right side of the upper end of 0.

The right side of the lower end of the fifth lever 80 is approximately V-shaped, and the left side of the right branch of the sixth lever 82 is rotatably attached to a chassis (not shown) parallel to the paper surface. is in contact with the surface.

The sixth lever 82 is biased counterclockwise by a biasing means 84 and has its left branch located below the second notch 40 on the right side surface of the first lever 16 . At this time, the left branch portion of the sixth lever 82 is located within the movement locus of the second notch 40 of the first lever 16 in the vertical direction.

Further, the sliding button 12 is connected to an electric switch electrically connected to an electric circuit (not shown) housed in the housing 10 of the tape recorder, and the electric circuit (not shown) is connected to the recording/reproducing head 68 and the tape recorder. It is electrically connected to an electric motor (not shown) housed in the housing 10 of. Further, the electric motor (not shown) is connected to a capstan (not shown) and a reel shaft (not shown) housed in the housing 10 of the tape recorder, and supplies rotational driving force to these.

Further, the push button 14 is also connected to an electric switch electrically connected to the aforementioned electric circuit (not shown).

When the slide button 12 and the push button 14 are arranged in the positions shown in FIG. Since the magnetic recording tape 36 does not run and the recording/reproducing head 68 does not function as a recording head or a reproducing head, since the aforementioned electric motor (not shown) does not rotate. The positions of the slide button 12 and push button 14 at this time are the second and first positions, respectively, and the mode of the tape recorder at this time is the stop mode.

Note that in this embodiment, the sliding button 12
constitutes the sliding operation member in this invention, and the second tongue piece 44 and the fourth lever 6
4, support lever 70, third lever 56, fifth ever 80, sixth lever 82, foot lever 4
8 and the first lever 16 constitute the recording/playback head moving means in the present invention, and the recording button 14, the first lever 16, and the second lever 28 constitute the recording mode setting means in the present invention. Furthermore, the first notch 38 of the first lever 16 and the hook 48 of the foot lever 46 constitute a recording/reproducing head movement prevention means in this invention.

Next, the operation of the embodiment configured as described above will be explained.

When the tape cassette attached to the reel shaft (not shown) of the tape recorder does not have an erase prevention claw, that is, when the accidental erasure prevention claw is bent or removed, the tape cassette is placed in the first position. When the push button 14 is pressed, the lower end surface of the first lever 16 comes into contact with the accidental erasure prevention lever 24, and the push button 14 cannot be moved downward from the first position. Therefore, since the upper base of the curved portion 26 of the first lever 16 does not come into contact with the second lever 28, the erasing head 3
2 also does not move downward from the first position shown in FIG. 1 and does not contact the magnetic recording tape 36.

Next, assuming that the tape cassette attached to the reel shaft (not shown) of the tape recorder has an accidental erasure prevention claw, the accidental erasure prevention lever 24 moves to the right from the position shown in FIG. The lower end surface of 16 moves out of the movement locus in the vertical direction.

In the following description, it is assumed that a tape cassette mounted on a reel shaft (not shown) of a tape recorder has a erroneous erasure prevention claw.

First, when the slide button 12 is moved to the left from the second position shown in FIG.
6 tilts to the left with the fixed pin 20 as the center of swing.
However, since the base of the upper portion of the curved portion 26 of the first lever 16 does not contact the upper surface of the second lever 28, the erasing head 32 does not move downward from the first position and is magnetically moved as shown in FIG. Do not contact the recording tape 36.

At this time, the left end surface of the second tongue portion 44 of the slide button 12 comes into contact with the right side surface of the protrusion 66 of the fourth lever 64, so that the fourth lever 64 is moved from the position shown in FIG. The recording/reproducing head 68 is rotated counterclockwise against the urging force of the urging means 76, and the left end of the fourth lever 64 moves the recording/reproducing head 68 downward from the first position shown in FIG. It is brought into contact with the magnetic recording tape 36 as shown in the figure.

The position of the recording/reproducing head 68 at this time is the second position, and the position of the slide button 12 is the first position.

When the sliding button 12 is placed in the first position as shown in FIG. The recording tape 36 is run in one predetermined direction, rightward in this embodiment, at a predetermined speed, and the recording/reproducing head 68 is made to function as a reproducing head.

Therefore, if information has already been recorded on the magnetic recording tape 36, this information will be transferred to the recording/reproducing head 6.
8 through the housing 1 of a tape recorder, for example.
It is reproduced from a speaker (not shown) provided at 0.

The mode of the tape recorder at this time is play mode.

Next, when the play mode is set on the tape recorder, when the push button 14 is moved downward from the first position shown in FIG. 2 against the urging force of the urging means 22, the first lever 16 is activated. The base of the upper part of the curved part 26 presses the upper side of the second lever 28,
Rotate the second lever 28 in the counterclockwise direction in the drawing. Accordingly, the erasing head 32 is moved downward from the first position shown in FIG. 2 against the biasing force of the biasing means 34, and is brought into contact with the magnetic recording tape 36 as shown in FIG. At this time, the positions of the erasing head 32 and the push button 14 are set to their respective second positions.

When pushbutton 14 is placed in the second position, the previously described electrical circuitry (not shown) causes recording/playback head 68 to function as a recording head. Therefore, if a microphone is electrically connected to the electric circuit (not shown) described above, information is transferred to the magnetic recording tape 36 running at a predetermined speed to the right in the drawing via the microphone and the recording/reproducing head 68. Record.

The mode of the tape recorder at this time is recording mode.

Further, when the push button 14 is placed in the second position, the hook 48 of the hook lever 46 of the slide type button 12 is connected to the first notch 38 of the first lever 16 as shown in FIG. Even if the downward force applied to the push button 14 is removed, the push button 14 does not return to the first position as shown in FIG. 1 due to the biasing force of the biasing means 22. Further, at this time, the second notch 40 of the first lever 16 is located above the upper surface of the left branch of the sixth lever 82, as shown in FIG.

Next, when the recording mode is set on the tape recorder, when the slide button 12 is moved from the first position shown in FIG. 3 to the second position shown in FIG.
Since the base of the upper portion of the curved portion 26 of the first lever 16 is separated from the upper surface of the second lever 28, the erasing head 32 is returned to the first position by the biasing force of the biasing means 34. Also, the second lever 28
The screen is rotated clockwise until the upper side of the screen contacts the fixing pin 30 as shown in FIG.

Even when the sliding button 12 returns to the second position, the hook 48 of the hook lever 46 of the sliding button 12 remains engaged with the first notch 38 of the first lever 16, as shown in FIG. , the first lever 16 and the push button 14 are held at the second position against the biasing force of the biasing means 22.

Further, since the upper surface of the left branch of the sixth lever 82 is in contact with the second notch 40 of the first lever 16 of the push button 14 held in the second position, as shown in FIG. The right side of the upper end of the fifth lever 80, which has the right side of its lower end in contact with the upper side of the right branch of the sixth lever 16, is moved clockwise by the urging force of the urging means 76. The branch 78 of the fourth lever 64 that is about to rotate is brought into contact with the branch 78 of the fourth lever 64 to prevent the fourth lever 64 from rotating in the clockwise direction. The magnetic head 68, as shown in FIG.
It remains in contact with the magnetic recording tape 36 as before. However, when the slide button 12 returns to the second position, the aforementioned electric circuit (not shown) not only stops the rotation of the motor (not shown) and stops the running of the magnetic recording tape 36, but also causes the recording/playback head 68 to stop recording. It cannot function as a head or a playback head.

The mode of the tape recorder at this time is standby mode.

If the slide button 12 is moved to the first position as shown in FIG. 3 when the tape recorder is set in standby mode, the erasing head 32 comes into contact with the magnetic recording tape 36 again, so that the tape recorder is set to the recording mode again. Can be set to . When transitioning from standby mode to recording mode, the recording/playback head 68 moves to the magnetic recording tape 36 as when transitioning from stop mode to recording mode.
Because there is no sudden approach or contact with the object, no transit noise is generated.

Standby mode, as shown in FIG. 4, can also be transitioned from stop mode, as shown in FIG.

That is, when the tape recorder is set in the stop mode as shown in FIG. The notch 40 presses the upper side of the left branch of the sixth lever 82, and the sixth
The lever 82 is rotated counterclockwise in the figure against the biasing force of the biasing means 84. The sixth lever 82 rotated counterclockwise rotates the fifth lever 80 clockwise, and the right side of the upper end of the fifth lever 80 rotated clockwise rotates the fourth lever 64. The fourth lever 64 is rotated counterclockwise against the biasing force of the biasing means 76 by pressing the branch portion 78 of the fourth lever 64 . The fourth lever 64 rotated counterclockwise moves the recording/playback head 68 to the first position.
It is moved downward from the position shown in FIG. 4 and placed in a second position in contact with the magnetic recording tape 36, as shown in FIG. The first lever 16 of the push button 14 disposed in the second position is not attached to the push button 14 because the hook 48 of the hook lever 46 of the sliding button 12 is engaged with the first notch 38. Even if the pressing force is removed, the push button 14 does not return to the first position due to the urging force of the urging means 22.

Note that when the tape recorder is set to standby mode, the left end surface of the second tongue portion 44 of the sliding button 12 is separated from the right side surface of the protrusion 66 of the fifth lever 64, as shown in FIG. It is spaced apart to the right, and the right end surface of the second tongue piece 44 is in contact with the left side surface of the protrusion 58 of the third lever 56 .
However, the third lever 56 does not rotate counterclockwise in the drawing from the position where its upper surface abuts the fixing pin 60 against the biasing force of the biasing means 62, and the right end of the fourth lever 64 The lower surface of the left end portion is spaced upward from the upper surface of the portion.

To cancel standby mode and set the tape recorder to stop mode, press the sliding button 12 located in the second position as shown in FIG.
Move to the right in the drawing. Then, the right side of the lower end of the foot lever 48 comes into contact with the fixing pin 50, so that it rotates clockwise in the drawing against the biasing force of the biasing means 52, and the first lever 16
The hook 48 is disengaged from the first notch 38 . Therefore, the first lever 16 is moved upward by the urging force of the urging means 22, and the push button 14 is moved upward.
from the second position to the first position. Further, the right end surface of the second tongue portion 44 of the sliding button 12 that has been moved to the right is connected to the protrusion 58 of the third lever 56.
The third lever 56 is rotated counterclockwise in the drawing against the urging force of the urging means 62. The lower surface of the left end of the third lever 56 rotated counterclockwise comes into contact with the upper surface of the right end of the fourth lever 64 . At this time, the fourth lever 64 is moved from the upper surface of the left branch of the sixth lever 82 to the first lever 1 which has returned to the first position.
Since the second notches 40 of 6 are spaced apart upwardly and the sixth lever 82 is in a freely rotatable state, it is rotated clockwise in the drawing with the help of the biasing force of the biasing means 76. rotating magnetic head 68
is moved upward from the second position shown in FIG. 4 to separate the magnetic head 68 from the magnetic recording tape 36 and place it in the first position as shown in FIG.

The sliding button 12 moved to the right in the drawing from the first position shown in FIG.
When the notch 54 of No. 4 engages with the protrusion 58 of the third lever 56 as shown in FIG. 5, the rightward movement is stopped.

As described in detail above, the operating device for a tape recorder of the present invention has: a first position that slides along the outer surface of the housing of the tape recorder and that allows the establishment of the playback mode and a second position that allows the playback mode to be canceled. a sliding operating member movable between a second position and a third position located on the opposite side of the first position with respect to the second position; a recording/reproducing head moving means for moving the recording/reproducing head away from the magnetic tape when in the third position and bringing the recording/reproducing head into contact with the magnetic tape when in the first position; a sliding operating member in the first position; a recording mode setting means that enables the recording mode to be set under certain conditions; when the sliding operating member moves to the second position following the recording mode setting;
Since the recording/playback head is characterized by being equipped with a recording/playback head movement prevention means for preventing the separation of the recording/playback head from the magnetic tape, the first position and the second position can be changed after the recording mode is set. Even if the sliding operation member is repeatedly moved back and forth between the magnetic tape and the magnetic tape, the recording/playing head movement preventing means prevents the recording/playing head from separating from the magnetic tape, so even if recording and stopping are repeated, transient noise will be generated. Never. The above-mentioned embodiments are for explaining the present invention, and are not intended to limit the present invention in any way, and variations and modifications may be made within the technical scope of the present invention.
It goes without saying that all modifications, etc., are included in the scope of the present invention.

[Brief explanation of the drawing]

FIG. 1 is a side view schematically showing a state in which the operation device of a tape recorder according to an embodiment of the present invention sets the stop mode and the recording/reproducing head and the erasing head are separated from the magnetic recording tape; FIG. Fig. 3 is a side view schematically showing the embodiment of Fig. 1 in which the play mode is set and the recording/reproducing head is brought into contact with the running magnetic recording tape and at the same time the erasing head is separated from the magnetic recording tape; 4 is a side view schematically showing the first embodiment in which the recording mode is set and the recording/reproducing head and erasing head are brought into contact with the running magnetic recording tape; FIG. A side view schematically showing a state in which one embodiment sets the standby mode and the recording/reproducing head is brought into contact with the stopped magnetic recording tape and at the same time the erasing head is separated from the magnetic recording tape; FIG. 3 is a side view schematically showing a state in which the embodiment shown in the figure is in the middle of transitioning to a stop mode. 10...Tape recorder housing, 12...
...Sliding button, 14...Push button, 16...1st
lever, 18...long hole, 20...fixing pin, 2
2... Urging means, 24... Erroneous erasure prevention lever, 2
6...Bending portion, 28...Second lever, 30...
Fixed pin, 32... Erasing head, 34... Urging means, 36... Magnetic recording tape, 38... First notch, 40... Second notch, 42... First
tongue piece part, 44... second tongue piece part, 46... foot lever, 48... hook, 50... fixing pin,
52...Biasing means, 54...Notch, 56...
Third lever, 58... protrusion, 60... fixing pin, 62... biasing means, 64... fourth lever,
66... Protrusion, 68... Recording/playback head, 70... Support lever, 72, 74... Pin, 76... Biasing means, 78... Branch, 80... Fifth lever, 82
...Sixth lever, 84...Biasing means.

Claims (1)

[Claims] 1. A tape recorder that slides along the outer surface of the housing of the tape recorder and has a first position where the playback mode can be set, a second position where the playback mode can be canceled, and a second position where the playback mode can be canceled. a sliding operating member that is movable between the first position and a third position located on the opposite side; when the sliding operating member is in the second position and the third position, the recording/playback is performed; A recording/playback head moving means for separating the head from the magnetic tape and bringing the recording/playback head into contact with the magnetic tape when in the first position; recording mode setting means for enabling setting; and recording/playback head movement blocking means for preventing the recording/playback head from separating from the magnetic tape when the sliding operating member moves to the second position following the recording mode setting; An operating device for a tape recorder, characterized by comprising; 2. The recording mode setting means is a push button that is movably provided on the sliding operating member together with the sliding operating member and is movable in a direction intersecting the sliding direction of the sliding operating member; Claim 1, characterized in that the operating member is pushable and locked in a first position and a second position, and the locking is released in a third position. Operating device for the described tape recorder.