JPS58155557A - Mode switching device of tape recorder - Google Patents

Abstract

PURPOSE:To decrease the number of components of a device, by operating a releasing member for recording, reproduction and a releasing member for stopping with one solenoid. CONSTITUTION:When a selecting member 9 and a switching member 11 are slid right by operation of a solenoid 10, a drive section 11a shifts right the 1st releasing member 2 via a latch section 2a. Thus, a latch pin 3a is unlatched, a cam gear 3 is turned, a moving member 1 is moved upward via a pin 13 with a cam 3b, after a lock member 5 is locked to a latch 1a, the solenoid 10 is returned to select the mode to the recording or reproduction. In operating the solenoid 10 again, the selecting member 9 and the switching member 11 are slid right, the 2nd releasing member 7 is shifted right, the lock member 5 and the latch 1a are unlatched, and the moving member 1 is returned to the stop position. Then, only one solenoid is used, then the number of components is decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an operation switching device for a tape recorder.

Conventionally, tape recorders using solenoids have been operated in such a manner that they are turned off to stop and turned on to operate9, but current constantly flows during operation, resulting in a significant waste of power.

Further, in FIG. 1 showing the operation switching device for intermittent use, reference numeral 1 denotes a movable member connected to a head substrate (not shown) provided with a rewriting head i or an erasing head. 2 is a first release member, 3 is a cam gear, 3a is a locking pin mounted on the cam gear 3, 3b is a cam, and 10 is a solenoid.

Then, when the movable member 1 valves the solenoid 10 and moves the first release member 2 backward, the cam gear 3 is released from the locking pin 5a and is driven by the flywheel gear 4a, which releases the pin 13 via the cam 3b. The movable member 1 is pushed up and moved in the direction of the arrow, and the locking portion 1C is locked with the locking piece 7a of the second release member 7. When the second release member 7 is moved backward by the solenoid 10, the locking portion 1C displaces the outer movable member 1 from the locking piece 7a in the direction opposite to the arrow direction. The structure shown in Fig. 1 requires a solenoid 10 for operation and stop, so it requires a large number of expensive parts, and also has the disadvantage of consuming a lot of space in a small tape recorder. There is.

The present invention has been made in view of the above circumstances, and provides an operation switching device for a tape recorder that can reduce the number of parts by operating a recording/playback release member or a stop release member using a single solenoid. It is intended for this purpose.

The operation switching device for a tape recorder of the present invention includes a movable member that is driven to move from a stop position to a recording position and then to a playback position, a first release member that releases the stopped state of the movable member driven by a solenoid, and a recording box. is the second to release the playback state.
a release member, the release member is attached to the movable member so as to be slidable in a direction perpendicular to the direction in which the movable member is moved via a cam, and the release member is attached to the movable member in a direction perpendicular to the moving direction of the movable member; A selection member formed to be driven via a solenoid, and the first. The solenoid that drives the second release member is attached to the selection member so as to be slidable in the perpendicular direction and four directions, and is biased via a spring so as to be in a neutral position with respect to the selection member. the switching member having a drive section that drives only the first release member when the movable member is in the stop position and drives only the second release member when the movable member is in the recording or playback position when the selection member is moved; It has been established that

Hereinafter, an embodiment of the operation switching device for a cheap coater according to the present invention will be described with reference to FIGS. 2 to 4, with the same parts as those of the conventional apparatus being designated by the same reference numerals, and explanation of the structure of the same parts being omitted. Figure 2 is a front view of the stopped state, Figure 2 is an explanatory diagram of the state in the middle of the transition from the state of Figure 1 to the recording state, and Figure 3 is the state of recording from the state of Figure 2 to the playback state. It is a front view after a transition to. In FIG. 2, 5 is a locking member, and 6 is a lock release member, which is attached to the locking member 5 so as to be rotatable around a fulcrum 6a, and to the board so as to be rotatable around a fulcrum 8b. By the bottle 8C on the member 8, the retaining part 6
b is restricted to a position where it does not come into contact with the flywheel and 74b during rotation of the flywheel gear 4a. and,
When the second release member 7 is driven rightward, the direction change member 8 is rotated counterclockwise about the fulcrum 8b via the retaining portion 8a. Accompanying this, the lock release member 6 is rotated clockwise by the pin 8C around the fulcrum 6a, the retaining portion 6b engages with the flywheel pin 4b, and the lock release member 6 is moved to the left. The locking member 5 is moved leftward via the fulcrum 6a to unlock the locking portion 1a of the movable member 1.

Reference numeral 9 denotes a selection member, which has two parts in a direction perpendicular to the moving direction of the movable member 1.
The bottle 16, which is set on the movable member 1, is loosely fitted into the long groove 15, so that when the movable member 1 moves, it moves at the same time. A flexible VC is formed. Reference numeral 11 denotes a switching member which is provided with two long grooves 17 in the moving direction of the movable member 1, and into the long grooves 17 is loosely fitted a bottle 18 that is set up on the selection member 9. Then, the switching member 11 is connected to the selection member 9 by a spring 12.
12, it is attached and biased so that it is always at an intermediate position in the direction of the long groove 17. Numeral 19 is a long groove provided in the selection member 9 in the moving direction of the movable member 1, into which a retaining portion of the solenoid 10 is loosely fitted. The switching member 11 includes a first release member 2,
The haze engaging portions 2a formed in the respective inner parts of the second release member 7
, 7a, drive parts 11a and 11b are located at positions opposite to each other during operation.
A suppression section is provided.

In FIG. 2, the drive part 11a is in a stopped state, facing the retaining part 2a of the first release member 2, and the drive part 11b is positioned apart from the retainer part 7a of the second release member. When the solenoid 10 is operated in this state, the selection member 9 and the switching member 11
is slidably driven to the right, and the driving portion 11a moves the first release member 2 to the right via the retaining portion 2a. Therefore, the locking pin 3a of the cam gear 6 is released, and the cam gear 3 engages with the flywheel gear 4a and starts rotating, causing the cam 3b to rotate.
to move the movable member 1 upward via the bi/13,
The locking member 5 locks the locking portion 1a't and enters the recording or reproducing state shown in FIG. At this time, if the movable member 1 starts to move and the main solenoid 10 does not return as shown in FIG.
Then, only the selection member 9 moves, and after the solenoid 10 returns, it returns to the neutral position by the tension of the spring 12, resulting in the state shown in FIG. 4. In this state, the driving part 11a is removed from the same position as the engaging part 2a, and the driving part 11b is in the same position as the engaging part 7a.

When the solenoid 10 is operated in the recording or playback state of FIG. 4, the selection member 9 and the switching member 11 slide to the right and move the second release member 7 to the right via the pressing portion 111). Next, the direction change member 8 is rotated counterclockwise via the locking portion 8a in FIG. It engages with the flywheel bin 4b rotating in the direction of the arrow in FIG. 2, moves the locking member 5 to the left, unlocks the locking portion 1a, and returns the movable member 1 to the stopped position. At this time, if the solenoid 10 does not return, the switching member 11 remains locked to the engaging portion 2a, and only the movable member 1 and the selection member 9 return to the stop position. After the solenoid 10 returns, the spring 12
It returns to its neutral position and becomes the state shown in FIG.

At this time, if the selection member 9 and the switching member 11 are rigidly connected, the switching member 11 is locked to the engaging portion 2a or 7&, thereby preventing further movement of the movable member 1. Since this is not possible, the connection is made elastically in the non-embodiments.

In this way, the non-implemented tape recorder operation switching device is capable of switching between stop and recording or playback by intermittently using a single solenoid and using motor power when inactive, so it is possible to switch between stop and recording or playback using a single solenoid. The number of parts can be reduced, and compared to a constantly energized type that requires a large amount of power during use, it requires no power at all after switching, resulting in significant energy savings.

The inventive tape recorder operation switching device described above has the effect of reducing the number of parts by operating the recording/playback release member and the stop release member using a single solenoid.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram of a conventional tape recorder operation switching device, Fig. 2 is a front view of an embodiment of the tape recorder operation switching device of the present invention in a stopped state, and Fig. 3 is from the state shown in Fig. 2. FIG. 4, which is an explanatory diagram of the operation during the transition to the recording or reproduction state, is a front view after the transition from the state of FIG. 3 to the one-straddle reproduction state. 1...Movable member, 2...First release member, 5b...Cam, 7...Second release member, 9... Selection member, 10...Solenoid, 11...Switching member, 11a11b...
・・Drive part, 12・・・Spring agent patent attorney Usui
1) Ri (island, -1 -2l illustration 2 figure)

Claims (1)

[Claims] 1. A tape having a movable member that is driven to move to a stop position and a bell or playback position, a first release member that releases the stopped state of the movable member, and a second release member that releases the playback state of the movable member. In an operation switching device for a recorder, a selection member attached to the movable member so as to be slidable in a direction different from the direction of the movable member, and a solenoid that drives the selection member in a direction in which the selection member is slidable; It is attached to the selection member so as to be able to slide freely in the same direction as the moving direction of the movable member, and biased via a spring so as to be in a neutral position with respect to the selection member, and when the selection member moves. and a switching member having a drive section that drives the first release member when the first member is at the stop position and drives only the second release member when the town member is at the bell sound or playback position. An operation switching device for a tape recorder.