JP2667843B2 - Tape recorder - Google Patents

Description

TECHNICAL FIELD The present invention relates to a tape recorder. (Prior Art) Japanese Patent Laid-Open No. 56-124149 discloses a power switch in an ON position.
The magnetic head and pinch roller in conjunction with the
Open the tape recorder that has previously been moved to the abutment position with the tape.
Is shown. In this tape recorder, the tape recorder
When setting the recording mode or playback mode for the coder,
Since the pad and pinch roller are already in contact with the tape,
No transit noise occurs. (Problems to be solved by the invention) However, as in the case of setting the eject mode,
The magnetic head and pinch roller are far apart from the tape.
The fast rewind mode that must be set for the tape recorder
Requires a relatively large amount of time. (Means for Solving the Problems) The present invention has been made under the above circumstances, and the object of the present invention is to
A tape that can reduce the time required for mode setting
It is to provide a precoder. The object of the present invention as described above is:
When ejecting the magnetic head and pinch roller from the tape
First setting means for setting to a first position which is largely retracted
And the pinch roller presses the capstan and the magnetic head
The pinch roller and the magnetic
Second setting means for setting a tape cassette;
The pinch roller moves slightly away from the capstan as it wears
Pinch the third position where the magnetic head contacts the tape.
Third setting means for setting a mirror and a magnetic head;
Where the chiller is between the first position and the third position.
The fourth position in which the magnetic head is in the predetermined position and the magnetic head is in the predetermined position
A fourth setting for setting the pinch roller and the magnetic head at the position
According to the present invention.
Can be achieved with a tape recorder. (Operation) The present invention characterized by being configured as described above
In accordance with the tape recorder,
At the time of projecting, the first setting means controls the magnetic head and the pinch.
Set the roller to the first position, which is a large step back from the tape.
You. In the tape recorder according to the present invention,
The magnetic head and the magnetic head are pinched by the second setting means.
Presses the capstan and the magnetic head comes into contact with the tape
Can be selectively set to the second position. In the tape recorder according to the present invention,
And the magnetic head are
The pinch roller is moved to the capstan by the third setting means.
The third magnetic head is slightly separated from the magnetic head and contacts the tape.
Set to position. In a tape recorder according to the present invention, a pinch low
And the magnetic head are further pinned by a fourth setting means.
Where the chiller is between the first position and the third position.
The fourth position where the magnetic head is at a predetermined position and the magnetic head is at a predetermined position.
Can be set selectively. Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
This will be described in detail. FIG. 1 shows a tape recorder according to an embodiment of the present invention.
The front chassis 10 is shown from the front side.
The chassis 10 is located on the back of the chassis 10
ー To show the various components of the power transmission mechanism of the precoder
Is indicated by a two-dot chain line. The above tape recorder
A tape cassette called a so-called micro cassette
Handy type tape recorder that uses
You. On the front side of the chassis 10, a take-up reel shaft (not shown)
And a rewind reel shaft are arranged.
The base of each rotation center shaft 12, 14 of the rewind reel shaft is
The opening 1 is inserted into the openings 16 and 18 formed in the chassis 10.
Secure the tongue pieces 20 and 22 that are bent from the periphery of
Is defined. Rotation center shafts 12 and 14 located on the back side of chassis 10
At the base of the take-up reel shaft and rewind reel shaft respectively
Windings concentrically connected via a known slip mechanism
Take-up reel gear 24 and rewind reel gear 26 can rotate freely
Installed. On the back side of the chassis 10, further along the lower edge of the chassis 10.
The extended slide-type control lever 28 is
The slide operation lever 28 is
It has an operation button 29 protruding in the direction. Sly
The operation lever 28 is mounted on the back of the chassis 10.
Or a plurality of guide pins that are bent to
To move along the lower edge of chassis 10
Inside. The lower edge of the slide control lever 28 has four positions
The positioning recesses 32, 34, 36, 37 are formed continuously,
One of the positioning recesses 32, 34, 36, 37
The other end of the leaf spring 38 having one end fixed to the side wall of the chassis 10
The roller 40, which is rotatably mounted on the
I have. Four positioning of lower edge of sliding operation lever 28
Fixed to recesses 32, 34, 36, 37 and side walls of chassis 10
Four positioning recesses rotatably supported by leaf spring 38
The roller 40 that engages with any one of 32, 34, 36, and 37 is
Selectively move the slide control lever 28 to four predetermined positions
A click-stop mechanism to hold
You. An outline between the take-up reel gear 24 and the rewind reel gear 26
In the middle near the upper edge of the sliding operation lever 28,
Caps rotatably held by bearings 42 on the chassis 10
Button 44 is located on the rear side of the chassis 10.
At the base of the capstan 44 is a flywheel 46
It is fixed in the center and faces the back of the chassis 10.
A drive gear 48 is concentrically fixed on the upper surface of the flywheel 46.
Is defined. On the peripheral surface of the flywheel 46, beside the chassis 10
Pulley 52 on the output shaft of the motor 50 fixed to the chassis 10
And a power transmission belt 54 is stretched between them. motor
50 rotates at a predetermined speed only in one direction indicated by arrow A. The outer surface of the bearing 42 on the chassis 10 is
Between the drive gear 48 of the flywheel 46 and the
One end is rotatable along the back of the chassis 10.
The other end of the rotating lever 56 is driven
The large-diameter first swing gear 58 meshed with the gear 48 is rotatable.
Installed. The first swing gear 58 is a rotating lever 56
Formed concentrically and integrally on its outer surface facing
The second drive gear 60 with a small diameter
The gear 60 meshes with the take-up reel gear 24. The rotation lever 56 is provided at one end on the slide operation lever 28 side.
A contact pin 62 is provided, and the contact pin 62 is slidable.
By contacting the upper edge of the lever 28, the rotating lever 56 is
The same direction as the rotation direction of the output shaft of motor 50 (in FIG. 1,
(Clockwise). The other end of the rotating lever 56 is further provided on the back of the chassis 10.
On the rear surface of the chassis 10 on the side of the rewind reel gear 26
It is attached to the rotation center shaft 64
A rewind idler gear 66 is disposed. Rewind
The idler gear 66 meshes with the rewind reel gear 26 and
And is rotatably supported by the other end of the rotating lever 56.
Located in the same plane as the large-diameter first oscillating gear 58
I have. The take-up reel gear 24 is formed concentrically and integrally on the back surface
It has a small diameter rapid feed gear 68 formed. Fast forward
The gear 68 has a rotation center planted on the back of the chassis 10
Large diameter first rotatably mounted on shaft 70
The fast-forward idler gear 66 is in mesh with the first
The idler gear 66 has a turn implanted on the back of the chassis 10.
The small-diameter
The second fast-forward idler gear 76 is engaged. Second early
Feed idler gear 76 also rotates to the other end of rotating lever 56
The same as the freely supported large-diameter first oscillating gear 58
The rotating lever 56 is located in the plane, and the outer peripheral surface of the bearing 42
Larger diameter first oscillating tooth when rotating up in the counterclockwise direction
It is located within the extension of the movement trajectory that the car 58 draws. One of the rotating levers 56 is provided on the upper edge of the sliding operation lever 28.
From the position spaced a predetermined distance to the right of the contact pin 62 at the end.
Further, a notch 78 extending rightward is formed. One of the rotating levers 56 is provided on the upper edge of the sliding operation lever 28.
From the position spaced a predetermined distance to the right of the contact pin 62 at the end.
Further, a notch 78 extending to the right is formed. In the left corner of the back of the chassis 10, its shape is shown in detail in FIG.
Fast Foam with a substantially L-shape as shown in detail
Lever (hereinafter referred to as the FF lever) 80
You. The FF lever 80 holds its long piece along the left edge of the chassis 10.
Extension, and the end of the short piece under the chassis 10
Fast forward rail projecting further down from the edge
It has a bar operation button (hereinafter referred to as FF operation unit) 82
You. FF lever 80 is planted on the back of chassis 10
Plan to move vertically by a pair of guide pins 84 and 86
Inside, the guide pin 84 at the left corner is the lower end of the long piece of the FF lever 80.
Into a vertically extending guide hole 88 formed in the
Has been entered. The FF lever 80 is
To the compression coil spring 89 interposed between the front wall of the sheet 10
Therefore, it is urged to its lower end position with respect to the chassis 10
I have. The FF lever 80 also has a second fast forward idler gear 76.
Another piece at the upper end of the strip that extends to the left of
It has a guide hole 90. The guide hole 90 is shown in detail in FIG.
As you can see, the vertical extension and the vertical extension
And a portion extending obliquely downward and to the right from the lower end. On the back of the FF lever 80 far from the back of the chassis 10
The eject levers 92 that extend in the vertical direction
The eject lever 92 is also 1 on the back of the chassis 10.
Up along the back of chassis 10 with a pair of guide pins 84,86
You will be guided downward. Also at the lower end of the eject lever 92
Also, as shown in detail in FIG.
Vertically extending guide into which the guide pin 84 in the left corner is inserted
A hole 94 is formed, and the eject lever 92 is
10 Eject lever operation protruding further downward from the lower edge
Work button (hereinafter referred to as eject operation unit) 96 and shear
The compression coil spring 98 interposed between the front wall of the plate 10
Is biased to its lower end position relative to the chassis 10 by
You. FF lever 80 and eject lever 92 as shown in FIG.
And are adjacent. The eject lever 92 is located below the chassis 10 from its lower end.
It has an extension 100 that extends rightward along the edge,
On the upper edge of the extension 100, away from the back of the chassis 10
Extending from the left extension of the sliding operation lever 28
An escape hole 104 is formed at a position facing the locking pin 102.
You. The eject lever 92 also moves rightward above the extension 100.
And has a head arm driving projection 106 protruding therefrom. Is the back of the chassis 10 at the upper end of the eject lever 92?
The cassette holder drive lever 108 is on the upper
The part is attached rotatably. Cassette holder drive
Hook 1 protruding leftward on the left edge of the lower end of the moving lever 108
A chassis 10 is formed on the right edge of the upper end.
Is formed with a guide pin 112 protruding toward the back surface of
You. Guide pin 112 is formed at the upper end of eject lever 92
Through the opening 114, which is also on the FF lever 80.
It is inserted into the guide hole 90 at the end. Eject lever
92 and the FF lever 80 are arranged at the lower end positions as shown in FIG.
When the cassette holder drive lever 108 is
The pin 112 is below the diagonally downward extension of the guide hole 90 of the FF lever 80.
It is located at the end and the hook 110 is on the left end of the chassis 10.
Does not protrude to the left. The ejector located at the lower end position shown in FIG.
Of the hook 110 of the cassette holder drive lever 108 on the bar 92
At some distance above the tip, the chassis 10
Cassette (not shown) provided on the front side so that it can be opened and closed
Cassette holder locking lever for holding the holder in the closed position
ー 116 along the left side wall of the chassis 10
It extends to the back side of 0. Cassette holder lock
The lever 116 has its one end along the left side wall of the chassis 10.
Cassette holder not shown by being pushed upward
Is disengaged from the cassette.
The holder is in the closed position by the urging force of the urging means (not shown).
To the open position and move the tape cassette
Eject from the order. The eject lever 92 is an engagement protrusion that protrudes leftward from the left edge.
The FF lever 80 has a base 118 and the chassis 10 from the left edge.
Eject lever bent in the direction away from the back of
A drive pin (hereinafter, referred to as a drive pin) 120 is provided.
The eject lever 92 and the FF lever 80 are as shown in FIG.
When placed at their respective lower end positions, they are shown in FIG.
, The engaging protrusion 118 of the eject lever 92 is
It is adjacent above the zero drive pin 120. As shown in FIG. 4, the upper surface, that is, the surface of the chassis 10 is
The cassette positioning pins on the left and right sides of the capstan 44.
122 have been planted. The top of the chassis 10 also
Head support that extends laterally along the front wall of chassis 10
An arm 124 is provided. FIG. 5 shows the head support arm.
The detailed shape of the arm 124 is shown and the head support arm
The system 124 seals the center of the area along the upper edge, near the left end.
Around the central axis of rotation 126 planted on the surface of chassis 10
It can rotate freely in a state parallel to the surface of the chassis 10
So that it is attached. On the upper surface of the head support arm 124, the capstan 44 and the right
At the position corresponding to the cassette position establishment pin 122 on the side
A magnetic head 128 is attached. Head support arm
The left end of the hole 124 is above the opening 130 formed in the chassis 10.
The left end is extended and projects into the opening 130.
A projection 132 is formed. The head support arm 124
The opening of the chassis 10 is formed between the rotation center axis 126 and the magnetic head 128.
An opening 136 corresponding to 134 is formed.
The upper surface of the chassis 10, which has a shape similar to an arc around the rolling center axis 126, also has a head, as shown in FIG.
Shear in the vicinity of the left side of the rotation center axis 126 of the support arm 124.
Around the central axis of rotation 138 that is planted on the surface of shi
It can rotate freely in parallel to the surface of the chassis 10
Pinch roller support lever 140 with one end attached
Is arranged. The other end of the pinch roller support lever 140
The part extends to the right on the upper surface of the head support arm 124.
Thus, the pinch roller 142 is rotatably supported. pin
The chiller support lever 140 has a substantially U-shaped cross section.
Is supported on the rotation center shaft 138 by the upper piece and the lower piece,
It also supports the pinch roller 142, but is not attached to this application.
In the figures shown, the upper pieces are omitted for clarity.
It is drawn in an upright state. The pinch roller support rail is shown in FIG.
The shape of bar 140 is shown in detail. A screw is attached to the rotation center shaft 138 of the pinch roller support lever 140.
The torsion coil spring 144 is wound and the torsion coil spring 1
One end of 44 is inserted into the through hole formed on the front wall of chassis 10.
And the other end is formed on the side wall of the pinch roller support lever 140.
The pinch roller support lever is inserted through the formed through hole.
The bar 140 is biased counterclockwise. Pinch low
Protrudes downward at one end of the support lever 140
The formed engagement pin 146 is
Engage with the upper edge of the left end to support the head
The arm 124 is pinched by the urging force of the torsion coil spring 144.
Energized counterclockwise with the roller support lever 140.
Have been. The engagement protrusion 132 on the left end of the head support arm 124 is a chassis.
Engagement in which the central part is rotatably attached to the back of 10
It is engaged with the engaging hook 150 at one end of the lever 148 and
The other end 152 of the joint lever 148 faces the inside of the opening 130 of the chassis 10.
It protrudes to the side. The other end 152 of the engaging lever 148 has a chassis
It is wound around a small protrusion on the surface of chassis 10 and one end is pinched
It is locked to the rotation center shaft 138 for the support lever 140.
The other end of the torsion coil spring 154 is latched.
The torsion coil spring 154 moves the engaging lever 148 in the counterclockwise direction.
Is being urged. The right end of the head support arm 124 is on the right side wall of the chassis 10.
On the surface of chassis 10 by fixed leaf spring 156
On the right end of the head support arm 124.
The surface of the chassis 10 is located at a predetermined distance above the edge.
A stop pin 158 rising from the surface is formed. The head is on the back of the lower piece of the pinch roller support lever 140.
Inserted into the opening 136 of the support arm 124 and the opening 134 of the chassis 10.
A guide pin 160 passed through is planted. Guide pin 160
It projects further from the back of the chassis 10 to the rear, and the
Sliding operation on the back of chassis 10 as shown in Figure 1.
Insert into the guide hole 162 formed in the center of the lever 28.
Have been. Further on the surface of the chassis 10, as shown in FIG.
Extends left and right along the right edge of the front wall of chassis 10.
An erasing head lever 163 is arranged. Erase head
The shape of bar 163 is also shown in detail in FIG. Extinction
Erasing head lever 163 is composed of a permanent magnet on the right end
It has a head 164 with the left end on the surface of the chassis 10.
On the surface of the chassis 10 on the center axis of rotation 166 that is implanted
It is attached so that it can rotate freely in a parallel state
You. It is wound on the rotation center shaft 166 and one end is in front of the chassis 10.
Abutting against the wall and the other end in front of the erase head lever 163.
The torsion coil spring 168 hooked to the edge
The lever 163 is biased counterclockwise. The lower edge of the erase head lever 163 is located on the front wall of the chassis 10.
There is a cam protrusion 170 protruding in the through hole,
On the extension for mounting the operation button of the ride-type operation lever 28
The cam drive protrusion 172 is the cam protrusion 170 of the erase head lever 163.
Touches the left edge of the. The head support arm is located above the upper edge of the erase head lever 163.
Abutment that protrudes toward you from the surface of the chassis 10
The pin 174 is formed. In a tape recorder configured as described above
As shown in FIG. 1, the slide type operating lever 28
Four positioning recesses 32,34,36,37
Click on the second positioning recess 34 from the left.
The roller 40 of the up mechanism is seated, and the head support arm
The engagement protrusion 132 on the left end of the engagement lever 148 of the chassis 10
Not shown when engaged with the engagement hook 150
The cassette holder is in the open position. Also motor
Start switch (not shown) for 50 and magnetic head 128 is OFF
It has become. Furthermore, the pinch roller support lever 14
0, the guide pins 160 on the back side are shown in solid lines in FIG.
Diagonally below the guide hole 162 in the center of the ride-type operating lever 28
It is located in the descending area. The tape recorder model at this time
The mode is the eject mode. put it here
The magnetic head 128 and the pinch roller 142 are connected to each other as described later.
(Not shown) when placed at a predetermined position on the chassis 10
Stored in the cassette and contacts the capstan 44 at the bottom
From a magnetic recording tape (not shown)
Maximum separation compared to various other modes described below
ing. To the cassette holder (not shown) located in the open position
After installing a tape cassette (not shown),
When the set holder is moved to the closed position, the cassette holder
Chassis 10 on a pair of reel hubs of tape cassette in Da
Connected to the take-up reel gear 24 and the rewind reel gear 26
A pair of take-up reel shaft and rewind reel shaft
The pair of tape cassettes are placed and positioned
A pair of cassette positioning pins 122 for chassis 10 in the holes
The tape cassette is
It is placed at a predetermined position on the
The ruda is a cover part of which is shown on the left side wall of chassis 10.
It is held in the closed position by the set holder locking lever 116.
You. Not shown located at a predetermined position on the chassis 10
The tape cassette extends into the opening 130 in the left corner of chassis 10.
Abuts against the other end 152 of the engaging lever
Pressing to the left in the figure results in the engagement lever 14
8 is clockwise against the biasing force of the torsion coil spring 154
To the engaging protrusion 132 on the left end of the head support arm 124.
Release the engagement with. Then the head support arm 124
Pinch roller support lever 140 and pinch roller support
Of the torsion coil spring 144 on the rotation center axis 138 of the lever 140
It rotates counterclockwise by the urging force. Pinch low
Rotation of the lever support lever 140 in such a counterclockwise direction
The guide pin 160 on the back of the pinch roller support lever 140
The guide hole 162 at the center of the sliding operation lever 28 is diagonally to the left
So that it projects into the guide hole 162 corresponding to the upper end of the descending area
The two trapezoidal projections 176 are formed with two-dot chain lines in FIG.
As shown, it stops upon contact. At this time pin
The pinch roller 142 on the chiroller support lever 140 is shown in FIG.
Slightly from Capstan 44, as shown in detail in
It is separated. The pinch roller support lever 140 is described above.
When the rotation is stopped in this way, the head support arm 124
The frictional force generated between the right side wall of the chassis 10 and the leaf spring 156
Pinch roller support without continuing rotation due to more inertia
The rotation stops together with the lever 140. The pin that stopped rotating
The upper edge of the pinch roller support lever 140 is shown in FIG.
Down the stop pin 158 near the right side wall of the chassis 10.
And the magnetic head 128 is
Tape (not shown) when it is placed in place on the shi
Stored in the cassette and touching the capstan 44 at the bottom
Lightly touch the magnetic recording tape 178 that extends in the left-right direction
I have. The mode of the tape recorder at this time is standby
(Preparation) mode, still motor 50 and magnetic head 128
The start switch (not shown) is turned off. Next, slide the operation lever 28 in the direction of arrow B in FIG.
The roller 40 of the click stop mechanism is
From the left of the click / stop mechanism of the id type operation lever 28
In the first positioning recess 32, click stop mechanism
Of the invention of the present application when the slider 40 is moved until it is seated.
Record mode is set on the tape recorder according to
Is determined. Pinch low in record mode
The guide pin 160 on the back of the support lever 140
Sound) The slide-type operation lever placed at the mode setting position.
Left side recess of trapezoidal projection 176 at the upper edge of guide hole 162 of bar 28
Located in 180. Therefore, the pinch roller support lever 1
40 is shown in FIG. 7 by the urging force of the torsion coil spring 144
Counterclockwise from the position in standby mode
Further pivoting, as shown in FIG.
On the capstan 44 with the magnetic recording tape 178 sandwiched
Is pressed by. Erase head lever 16 in record mode
3 is placed in the record mode setting position
Slide operation lever 20 on the operation button support extension
The cam drive projection 172 causes the cam projection 170 to be shown in FIG.
By being pressed upward, the torsion coil spring
Counterclockwise from the position shown in Fig. 7 against the biasing force of 168
Rotate in the direction. Twist until it touches capstan 44
It rotates counterclockwise by the urging force of the coil spring 144.
The engaging pin 146 of the pinch roller support lever 140 is
Holding arm 124 together with pinch roller support lever 140
Rotate integrally from the standby position shown in the figure.
Such rotation of the head support arm 124 causes the head support arm 124 to move.
The right end of the upper edge of the arm 124 is a stop near the right side wall of the chassis 10.
Stop by contacting the stop pin 158 as shown in FIG.
Is done. Here, the magnetic head 128 is shown in FIG.
Thus, the magnetic recording tape 178 is pressed. Erase head support lever 163 rotated counterclockwise
Of the head support arm 124 at the bottom edge of the head support arm 124.
Contact, the rotation of the erase head support lever 163 stops.
8, where the erase head 164 is also shown in FIG.
As shown, the magnetic recording tape 178 is pressed. When the slide operation lever 28 is in the record mode as described above,
Magnetic head (not shown)
When the function selection switch is set to record mode,
The start switch (not shown) is the magnetic head 128 and the mode 5
Start 0. Flywheel to which the torque from the output shaft of the motor 50 is transmitted
The drive gear 48 of the wheel 46 drives the rotating lever 56 to the output of the motor 50
In the same direction as the direction of rotation of the shaft, i.e.
Clockwise, but the rotation lever 56
Contact pin 62 abuts on the upper edge of the sliding operation lever 28
By moving the lever 56 from the position shown in FIG.
Prevents rotation in the counterclockwise direction. Therefore, take-up reel
Small oscillating second gear on pivot lever 56 relative to gear 24
The engagement of 60 is maintained, and the rotational force from the output shaft of the motor 50 is
The power is transmitted to the take-up reel gear 24. In the record mode, the magnetic recording tape 178 is
Rewinding lead to which torque from output shaft 0 is not transmitted
On the rewind reel shaft (not shown) connected to the
Capstan 44 and pin from the reel hub (not shown)
Drawn out at a predetermined speed by the
Rewind shaft (not shown) with the head 128 and the erase head 164
And the capstan 44 between the magnetic recording tape 178
Perform magnetic recording. Capstan 44 and pinch roller 142
The magnetic recording tape 178 that has passed between
Take-up reel gear 24 to which the rotational force from the power shaft is transmitted
Figure on the take-up reel shaft (not shown) connected to
Not reeled on a hub. This time, click the slide type operation lever 28 to the left.
The roller 40 of the stop mechanism is below the slide operation lever 28.
Third position from left of edge click stop mechanism
When it is moved until it is seated in the recess 36,
The tape recorder according to the embodiment has a play mode.
Is set. Slide mode lever 28 is set to play mode
When placed in the position, the pinch roller support lever 140
The guide pin 160 on the back side of the center of the slide operation lever 28
Located on the right side of the trapezoidal projection 176 on the upper edge in the guide hole 162
Is seated in the recess 182. The play mode is set to the record mode.
The difference is that the erase head 163 is
As shown in FIG. 1 separated from the magnetic recording tape 178.
Diagram for magnetic head 128, still in place
A play (playback) of a magnetic head function selection switch not shown
It is only set to mode. Erasing head 163
Is separated from the magnetic recording tape 178 as shown in FIG.
Remains in the same position as in Figure 1
(Playback) Slide-type operation
Cam drive projection 172 on operating button support extension of bar 28
However, as shown in FIG.
This is because they are separated to the left. Therefore, in the play mode, the magnetic head 12
8 does not transmit torque from the output shaft of the motor 50
Rewinding device (not shown) connected to the rewinding reel gear 26
Capstan from the reel hub (not shown) on the reel shaft
Pulled out at predetermined speed by 44 and pinch roller 142
The magnetic recording from the read magnetic recording tape 178 for playback.
And pass between the capstan 44 and the pinch roller 142
The magnetic recording tape 178 is rotated from the output shaft of the motor 50.
It is connected to the take-up reel gear 24 to which the rolling force is transmitted.
Reel reel (not shown) on the take-up reel shaft (not shown)
Rolled up on Slide the operating lever 28 to the left and click
Roller 40 of the slide mechanism
Fourth positioning recess from the left of the lick stop mechanism
Moved until seated in 37, embodiment of the present invention
Review mode is set for tape recorders that follow
You. Slide operation lever 28 is set to the Review mode setting position
When placed, the back of the pinch roller support lever 140
Guide pin 160 is located at the center of the slide operation lever 28.
Slide on the right edge of the diagonally right downward extension region 184 in the inner hole 162.
It descends to the approximate center on the right edge. This allows the pin
The chill roller support lever 140 is biased by the torsion coil spring 144.
Rotate clockwise against the pinch roller 142,
As shown in FIG. 10, it is separated from the capstan 44. Re
In view mode, pinch roller 142 is capstan 4
The distance from 4 is the distance shown in Fig. 4.
The distance is smaller than the above distance in the
Greater than the above distance in standby mode
No. Review mode from standby mode or record mode
To change to the mode, you must go through the play mode described above
The head support arm 124 is shown in FIG.
Pinch roller support lever 14
0, the pinch roller support lever 140
Only slightly away from magnetic recording tape 178 as described above
The head support arm 124 is generated by the leaf spring 156
The position in the play mode shown in FIG. 9 due to the frictional force
Left in the same position. When the slide operation lever 28 is
Magnetic head (not shown)
When the function select switch is set to play mode,
A start switch (not shown) includes the magnetic head 128 and the motor 50.
The upper edge of the slide type operating lever 28.
The notch 78 is located at a position facing the contact pin 62 of the rotating lever 56.
Is placed. Here, the torque from the output shaft of the motor 50 is transmitted.
The drive gear 48 of the flywheel 46
In the same direction as the rotation direction of the output shaft of the motor 50, that is, in FIG.
If you try to rotate it in the clockwise direction indicated by mark C,
The contact pin 62 of the rotating lever 56 is
It enters into the notch 78 on the upper edge and rotates from the position shown in FIG.
The moving lever 56 is rotated clockwise. Therefore, winding
From the reel gear 24 to the second small swing on the rotating lever 56
The gear 60 separates, and a large-diameter first oscillating gear 58 is wound instead.
The return idler gear 66 meshes with the output shaft of the motor 50
The rotational force is transmitted to the rewind reel gear 26. Therefore, the magnetic recording tape 178 is
Connected to the take-up reel gear 24 to which the rotational force of
(Not shown) on the take-up reel shaft (not shown)
After being pulled out from the
Is connected to the rewind reel gear 26 to which the rotational force of
(Not shown) on the rewind reel shaft (not shown)
The magnetic head 128 during this time.
For reproducing the information magnetically recorded on the recording tape 178.
Read out. Slide the operating lever 28 to the left and click
Roller 40 of the slide mechanism
Fourth positioning recess from the left of the lick stop mechanism
When moved to the slope formed on the right side of 37,
The tape recorder according to the embodiment of the present invention has a rewind
Mode (fast rewind) mode is set. Sliding control lever 28 is in rewind mode setting position
When placed at the back of the pinch roller support lever 140
Guide pin 160 on the center of the slide operation lever 28
Further on the right edge of the diagonally lower right extension area 184 in the guide hole 162
It slides and descends to near the lower end on the right edge. this thing
The pinch roller support lever 140 is twisted by the coil spring 1
In the review mode shown in Fig. 10 against the bias of 44
From the position, rotate further in the clockwise direction, and
142 from the position in the review mode shown in Fig. 10
Are further separated from the capstan 44. Rebumo
Pinch that rotates further clockwise from the position at the time of standing
The guide pin 160 on the back side of the roller support lever 140 supports the head.
The head supports by contacting the lower end of the opening 136 in the center of the arm 124.
Watch arm 124 with pinch roller support lever 140
The magnetic head 128
It is separated from the magnetic recording tape 178 as shown in FIG. Re
In the wind mode, the pinch roller 142 is
The distance away from the switch 44 is the ejector shown in FIG.
Is shorter than the above distance in auto mode,
Larger than the above distance in the review mode shown in the figure
No. As described above, the sliding operation lever 28 is
When placed at the head setting position, a magnetic head (not shown)
Mode select switch is located at the play mode setting position.
The start switch that is not shown and is not shown is the magnetic head 128.
And the motor 50 are started, and the sliding operation lever 28
The notch 78 at the upper edge of the
It remains located at the opposing position. Therefore, also here, the output shaft of the motor 50
The rotation force is the same as in the review mode described above,
Is transmitted to the gear wheel 26. Rotation from the output shaft of motor 50
Connected to the take-up reel gear 24, where no force is transmitted
(Not shown) on the take-up reel shaft (not shown)
The magnetic recording tape 178 pulled out of the motor
Rewind reel gear to which torque from output shaft is transmitted
Illustration on the rewind reel shaft (not shown) connected to 26
Not wound on a reel hub, magnetic recording tape 178
The magnetic head 128 that is separated from the head travels as described above.
The magnetic recording tape 178 that is being used has no effect. Now, next, the slide type operating lever 28 is shown in FIG.
FF level when it is placed in the standby mode setting position.
Bar 80 presses upward against biasing force of compression coil spring 89
The drive pin 120 on the left edge of the FF lever 80 is ejected.
Ejects by engaging the engaging projection 118 on the left edge of the lever 80
Press the lever 80 upward. Ejecture here
The escape hole 104 of the extension 100 to the right of the lower end of the bar 80 is slid.
Facing the locking pin 102 of the left extension of the operating lever 28.
The locking pin 102 prevents the ejector from
The lever 80 against the biasing force of the compression coil spring 98.
It can move upward together with the bar 80. Move up
Head arm drive projection 106 of eject lever 80 that has been moved
Is the engagement of the left end of the head support arm 124 as shown in FIG.
Engage the protrusion 132 and rotate the head support arm 124 clockwise
The magnetic head 128 as a result.
Separated from tape 178. Turn clockwise
The upper edge of the pad support arm 124 is a pinch roller support lever 140
Abuts on the engagement pin 146 and presses the engagement pin 146 upward,
This causes the pinch roller support lever 140 to twist
With the head support arm 124 against the biasing force of the spring 144.
Rotate clockwise to the pinch low as shown in Fig. 12.
The roller 142 is separated from the magnetic recording tape 178. FF lever 80
When both the eject lever 80 and the eject lever 80 move to the upper end position
Head support arm 124 and pinch roller support lever 140
The position shown in FIG. 12 is the same as that shown in FIG.
This is the same as the position in the project mode. When the FF lever 80 is pressed upward, it interlocks with the FF lever 80.
The not-shown forced rotation lever moves the rotation lever 56 to the first position.
Rotate counterclockwise from the position shown in Fig. 1 to
Accordingly, the second swing lever 60 having a small diameter on the rotating lever 56
Is separated from the take-up reel gear 24, and is replaced by a large diameter second
Swing lever 60 meshes with the second fast-forward idler gear 76
You. Also when the FF lever 80 is pressed upward,
The output shaft of the motor 50 rotates at a predetermined speed in the clockwise direction indicated by arrow A.
The motor starts to rotate in degrees and the torque from the output shaft of the motor 50 is
Drive gear 48 of rye wheel 46, large diameter second swing lever
60, second rapid traverse idler gear 76, first rapid traverse idler
Take-up reel gear 24 via Ra gear 72 and rapid feed gear 70
Is communicated. This allows the magnetic recording tape 178 to
Rewind without torque transmitted from the output shaft of motor 50
Rewind reel (not shown) connected to reel gear 26
After being pulled out from the reel hub (not shown) on the shaft,
Take-up reel to which the torque from the output shaft of
Take-up reel shaft (not shown) connected to the gear wheel 24
The magnetic recording tape is wound on the reel hub (not shown).
The magnetic head 128, which is separated from the loop 178,
No effect on running magnetic recording tape 178
No. Finally, the sliding operation lever 28 is shown in FIG.
When placed in the standby mode setting position
The vector lever 96 only resists the biasing force of the compression coil spring 98.
The upper part of the eject lever 96,
Set holder drive lever 108 guide pin 112 to FF lever 80
Clockwise by being guided by the guide hole 90 at the top of the
To make the hook 110 protrude from the left end of the chassis 10.
You. Head arm of eject lever 96 that moves upward
The drive lever 106 is the same as when the FF mode is set as described above.
The head support arm 124 and the pinch roller support lever 140
Counterclockwise against the biasing force of the torsion coil spring 144
Rotate. The head protruding from the left end of the chassis 10
The hook 110 of the drive lever 106 on the left side wall of the chassis 10.
Of the cassette holder locking lever 116
Pressing part upward causes the cassette holder locking lever 11
6 releases the lock on the cassette holder (not shown),
This opens the cassette holder (not shown) from the closed position.
It moves to the position by the biasing means (not shown),
Remove the tape cassette from a predetermined position on the surface of the chassis 10.
Eject (discharge). Place a tape cassette (not shown) on the surface of the chassis 10.
By ejecting (ejecting) from a fixed position,
The pressing force from the tape cassette on the other end 152
The engagement lever 148 removed is the biasing force of the torsion coil spring 154.
1 rotates counterclockwise to move the engagement hook 150 in FIG.
As shown in FIG.
Engage. This state corresponds to the eject mode shown in FIG.
Mode. (Effect of the Invention) As described in detail above, the tape recorder according to the present invention.
: When the tape cassette is ejected, the magnetic head and
Install the anti-roller in the first position, which is largely retracted from the tape.
First setting means for setting;
To the second position where the magnetic head contacts the tape.
Second setting means for setting an inch roller and a magnetic head
And; the pinch roller moves
Slightly separated from the pushstan and the magnetic head comes into contact with the tape
Setting the pinch roller and the magnetic head at the third position
Third setting means; the pinch roller is above the first position and above.
The magnetic head is in a predetermined position between the third position and
A pinch roller and a magnetic head
And fourth setting means for setting a head.
And set the mode to the tape recorder
The time required to do so can be reduced.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 shows various power transmission mechanisms on the rear side of the chassis of the tape recorder when the eject mode is set in the tape recorder according to the embodiment of the present invention. 2 and 3 are plan views showing the fast forward lever (FF lever) and the eject lever in FIG. 1; and FIG. 4 is a view of the tape recorder of FIG. FIG. 5 is a schematic plan view of the front side of the chassis; FIG. 5 is a plan view showing the head support arm in FIG. 4 together with a part of the chassis; FIG. 6 is the erasing head support lever in FIG. FIG. 7 is a plan view showing the pinch roller support lever together with a part of the chassis; FIG. 7 is a head support arm, an erase head support lever, and an erase head support lever when the standby (preparation) mode is set in the tape recorder of FIG. Plan view showing a pinch roller support lever together with a part of the chassis; FIG. 8 is a record on a tape recorder of FIG. 1 (recording)
FIG. 9 is a plan view showing the head support arm, the erase head support lever, and the pinch roller support lever together with a part of the chassis when the mode is set; FIG. 9 is a play (playback) mode set in the tape recorder of FIG. FIG. 10 is a plan view showing a head support arm, an erasing head support lever, and a pinch roller support lever together with a part of the chassis when the tape is recorded; FIG. 10 is a head support when the review mode is set in the tape recorder of FIG. FIG. 11 is a plan view showing an arm, an erasing head support lever, and a pinch roller support lever together with a part of a chassis; FIG. FIG. 12 is a plan view showing an erasing head support lever and a pinch roller support lever together with a part of a chassis; FIG. 9 is a plan view showing a head support arm, an erasing head support lever, and a pinch roller support lever when a fast forward mode is set in the precoder together with a part of the chassis. 10 ... Chassis, 24 ... Take-up reel gear, 26 ... Rewind reel gear, 28 ... Slide operation lever, 44 ... Capstan, 46 ... Flywheel, 50 ... Motor, 12
2 ... cassette position setting pin, 124 ... head support arm, 128 ... magnetic head, 140 ... pinch roller support lever, 142 ... pinch roller, 160 ... guide pin (head position setting means), 162 ... Guide hole (head position establishing means), 163 ... erasing head lever, 164 ... erasing head,
178 ... Magnetic recording tape.

Claims (1)

(57) [Claims] First setting means for setting the magnetic head and the pinch roller to a first position largely retreated from the tape when ejecting the tape cassette; and a second position where the pinch roller presses the capstan and the magnetic head comes into contact with the tape. A second setting means for setting a pinch roller and a magnetic head; the pinch roller and the magnetic head are moved to a third position where the pinch roller slightly separates from the capstan and the magnetic head comes into contact with the tape when the tape cassette is mounted. 3rd to set
Setting means for setting the pinch roller and the magnetic head at a fourth position in which the pinch roller is in a predetermined position between the first position and the third position and the magnetic head is in a predetermined position. 4th
A tape recorder comprising: