JPS6127819B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an operating device for a tape recorder or the like, and particularly to an operating device for controlling the main body of the device by operating a switch means.

For example, in a tape recorder, a head board is configured to be driven by a solenoid, a motor, etc., for reciprocating between a first position where the magnetic head is spaced from the magnetic tape and a second position where it is in contact with the magnetic tape. When controlling a solenoid, motor, etc., conventionally, a first switch is used to control the solenoid, motor, etc. to move the head board from a first position to a second position, and a first switch is used to control the solenoid, motor, etc. from a second position to a first position.
A second switch is provided to control the solenoid, motor, etc. so as to move the switch to the above position, and operating means are provided corresponding to the first and second switches for operation.

However, the provision of a plurality of switches as switching means for controlling solenoids, motors, etc. has the disadvantage that the structure becomes complicated and expensive.

The present invention eliminates these conventional drawbacks and provides an inexpensive operating device with a simple configuration. An embodiment of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes an actuating plate, which is slidably guided by shafts 2 and 3, is biased in the direction of arrow A by a spring 4, and is attached to a head board (not shown) on which a magnetic head (not shown), etc. is mounted. They are now being moved together.

5 is a capstan, which is rotated clockwise by a motor (not shown) and is rotated clockwise by a magnetic tape (not shown).
It runs under narrow pressure with a pinch roller (not shown) and has a gear 6.

Reference numeral 7 denotes a drive pulley, which has first and second intermittent parts 7a,
7b, a cam portion 7d that contacts the convex portion 1a of the actuating plate 1, and a control recess 7g having first and second locking recesses 7e and 7f. Therefore, it is rotatably supported. Reference numeral 9 denotes a control lever, which is rotatably mounted on a shaft 10 and biased counterclockwise by a spring 11, and one end 9a of which is connected to the first and second locking recesses 7e and 7f of the drive pulley 7. The other end 9b is engaged with the trigger solenoid 12.The other end 9b is engaged with the trigger solenoid 12.

One end of the trigger spring 13 is attached to the shafts 14 and 15, and the other end is attached to the convex portion 7h of the drive pulley 7.
The drive pulley 7 is urged counterclockwise by contacting the drive pulley 7.

A switch lever 16 is rotatably mounted on the shaft 3 and biased clockwise by a spring 17, and has a switch 18 for controlling the trigger solenoid 12.

The pin 16a of the switch lever 16 is brought into contact with an inclined portion 1b formed in a notch of the actuating plate 1, so that it is interlocked with the actuating plate 1.

19 is a play operation button, and 20 is a stop operation button, which are configured so that the play operation button 19 operates the switch 18 in the position shown in FIG. 1, and the stop operation button 20 operates in the position shown in FIG. There is.

Next, its operation will be explained. When the play operation button 19 is operated in the direction of arrow B as shown in FIG. 2 from the stopped state shown in FIG. 1, the switch 18 is operated and the trigger solenoid 12 is operated as shown in FIG. 3.

When the trigger solenoid 12 is operated, the control lever 9 is rotated clockwise against the spring 11, and one end 9a of the control lever 9 is disengaged from the first locking recess 7e of the drive pulley 7. When the drive pulley 7 is rotated counterclockwise by the bias of the trigger spring 13 and the gear portion 7c is meshed with the gear 6 of the capstan 5, the drive pulley 7 is rotated clockwise. 7 is continued to be rotated counterclockwise.

When the driving pulley 7 is rotated counterclockwise, the cam portion 7d is also rotated counterclockwise, so that the actuating plate 1 is moved in the direction of arrow A' against the force of the spring 4.
When the driving pulley 7 is still rotated counterclockwise, the meshing of the gear 6 and the gear portion 7c of the driving pulley 7 is separated by the second intermittent portion 7b, and at the same time, the convex portion 1a of the actuating plate 1 is rotated by the spring. 4 presses the cam portion 7d of the drive pulley 7, so the drive pulley 7 is urged counterclockwise. Since they are locked in the locking recess 7f, the driving pulley 7 and the actuating plate 1 are held in the moving position shown in FIG. 4.

When the actuating plate 1 moves from the state shown in FIG. 1 to the state shown in FIG. 4, a magnetic head (not shown), a pinch roller (not shown), etc. are operated in a well-known manner, resulting in a regeneration state.

Further, when the actuation plate 1 moves from the state shown in FIG. 1 to the state shown in FIG. is moved to a position where it can be operated by the stop operation button 20 (see FIG. 5), that is, the state shown in FIG.

Even if the play button 19 is operated in the direction of arrow B in the state shown in FIG. 4, the switch 18 will not be operated.

Next, when the stop operation button is operated in the direction of arrow C from the playback state shown in FIG. 4, the switch 18 is operated, thereby causing the trigger solenoid 12 to be operated intermittently in the same manner as described above.

When the trigger solenoid 12 is operated intermittently, the control lever 9 is rotated clockwise against the spring 11, and its one end 9a is disengaged from the second locking recess 7f of the drive pulley 7. , the cam portion 7d is connected to the convex portion 1a of the actuating plate 1 as shown in FIG.
Since the driving pulley 7 is urged counterclockwise by the urging force of the spring 4, the driving pulley 7 is rotated counterclockwise, and the gear 6 and the gear portion 7c of the driving pulley 7 are meshed with each other.

When the gear 6 and the gear portion 7c of the drive pulley 7 are engaged, the capstan 5 has been rotated clockwise, so the drive pulley 7 continues to be rotated counterclockwise.

When the driving pulley 7 is rotated counterclockwise, the cam portion 7d is also rotated counterclockwise, so that the actuating plate 1 is moved in the direction of arrow A by the spring 4. When the drive pulley 7 is still rotated counterclockwise, the gear 6 and the gear portion 7c of the drive pulley 7 are disengaged by the first intermittent portion 7a, and at the same time, the trigger spring 13 causes the drive pulley 7 to rotate. Although it is biased counterclockwise, one end 9a of the control lever 9 is pushed into the control recess 7g of the drive pulley 7.
Since the drive pulley 7 is held in the state shown in FIG. 1, the drive pulley 7 is held in the state shown in FIG.
is moved to the state shown in FIG.

When the actuating plate 1 moves from the state shown in FIG. 4 to the state shown in FIG. 1, a magnetic head (not shown), a pinch roller (not shown), etc. are operated in a known manner, and the reproducing state is changed to a stopped state.

When the actuating plate 1 moves to the state shown in FIG. Move it to the state shown in FIG. 1, which is the operable position.

As described above, the present invention provides a drive including a partially toothed gear that moves the head board on which the magnetic head is mounted from the first position to the second position and from the second position to the first position under power assistance by a trigger of a solenoid. an actuating means for reciprocating between first and second positions in conjunction with the head board; a switch means for controlling a trigger solenoid constituting the driving means; a lever means that is rotated in response to the action; a first switch that operates a switch means provided on the lever means;
A second operating means is provided, and the switch means is associated with the first and second operating means by a lever means that rotates in response to the operating means, so that the operating means is in the first position. When the actuating means is in the second position, it can be actuated by the first operating means, and when the actuating means is in the second position, it can be actuated by the second operating means. Therefore, the actuating means can be reliably and smoothly moved between the first position and the second position with a simple structure, and one switch can be actuated by the first and second operating means. And the effect is huge.

[Brief explanation of the drawing]

FIG. 1 is a schematic plan view showing one embodiment of the present invention, FIG. 2 is a schematic front view showing the operation button, and FIG. 3 is a schematic plan view showing a state in which the driving means is triggered from a stopped state. Figure 4 is a schematic plan view showing the reproduction state;
FIG. 5 is a schematic front view showing the state of the same operation button. 1... Actuation plate, 1a... Convex portion, 4... Spring, 5
... Capstan, 6 ... Gear, 7 ... Drive pulley, 9 ... Control lever, 12 ... Trigger solenoid, 18 ... Switch, 19 ... Play operation button,
20...Stop operation button.

Claims (1)

[Claims] 1. A driving means including a partially toothed gear for moving a head board on which a magnetic head is mounted from a first position to a second position and from the second position to the first position under power assistance by a trigger of a solenoid; An actuation means that reciprocates between first and second positions in conjunction with the head board, a switch means that controls a trigger solenoid constituting the drive means, and this switch means is mounted to respond to the actuation means. and first and second operating means for operating a switch means provided on the lever means, wherein the operating means is moved to a first position. 1st in condition
The actuating means is actuated by the second actuating means.
The lever means is configured to be associated with the first and second operating means by a lever means that rotates in response to the operating means such that the lever means is operated by the second operating means when the lever is moved to the position. An operating device for a tape recorder, etc., characterized by: