JPS5931788B2 - tape recorder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a tape recorder that is compact and extremely easy to operate.

(b) Prior Art Recently, tape recorders, which are miniaturized tape cassettes, have been widely used mainly for recording conference content or for taking notes.

Such a tape recorder is not only easy to operate and can be switched from a stopped state to a playback state or a recording state with one hand, but also can be directly switched from a playback state to a recording state, or conversely from a recording state to a playback state. It is desirable to be able to do so. In addition, in such a tape recorder, in order to wind the tape for playback or recording, a so-called reel drive is used in which the take-up reel stand is rotationally driven by a direct drive shaft to simplify the mechanism. method is adopted.

Conventionally, as this reel drive type tape recorder, a configuration as described in, for example, Japanese Patent Application Laid-Open No. 49-22104 is known.

That is, the tape recorder described in the same publication has a drive shaft mounted on a swinging arm, and by swinging the swinging arm during a playback operation, the drive shaft is brought into pressure contact with a take-up reel stand, and the tape is recorded. It is used for winding. However, since such a tape recorder is configured to obtain the playback state or the recording state by operating a single operation button in the opposite direction from the stop position, it is possible to change the recording state from the playback state as described above. It was not possible to switch directly from the recording state to the playback state.

(No. 0 Object of the Invention) An object of the present invention is to solve the above-mentioned conventional problems and to provide a tape recorder that is easy to operate and can quickly obtain the playback and recording states.

(d) Structure of the Invention In order to achieve the above object, the present invention provides a drive shaft on a swinging arm, and the swinging of the swinging arm presses the drive shaft against a take-up reel stand to take up the tape. The tape recorder includes a slide plate provided to swing the swing arm by moving in one direction, and a slide plate that moves independently in a direction perpendicular to the direction of movement of the slide plate. at least a select lever for playback and fast forward, and a recording lever for recording, each of which is provided with an inclined surface that slides into contact with a common follower member provided at one end of the slide plate; It has first and twentieth lock parts that lock the playback operating position of the select lever and the operating position of the recording lever, and after locking one operated lever, the lock is released by operating the other lever. a lock lever; and an erasing head that is switched from a non-operating position to an operating position with respect to the tape when the operating position of the recording lever is locked at a 20th lock portion of the lock lever; The recording lever is selectively locked in the operating position by a lock lever, and at the same time the slide plate is moved in one direction through the inclined surface of the select lever or the recording lever.

(A) Embodiments Hereinafter, embodiments of the tape recorder of the present invention shown in the drawings will be described.

1 is a combination of guide shafts 2, 2 and elongated holes 3, 3 as shown by the arrow A- in the figure.
The select lever 1 is provided to be movable in the N direction, and is used to obtain at least a playback state or a fast forward state, and has two semicircular arc-shaped recessed fitting portions into which lock pins of a lock lever 1, which will be described later, fit. 4 and 5 are provided adjacent to each other in the moving direction with the raised portion 6 interposed therebetween.

One of the recessed fitting portions 4 is located at the non-operating position of the select lever 1 (
・The other 5 is the select lever 1.
This is for setting the operating position (playback status) of the .

The select lever 1 is provided with an operation button mounting convex portion 7, an inclined surface 8 for contacting a follower protrusion of a slide plate, which will be described later, and a switch operation protrusion 9. Reference numeral 10 denotes a spring that biases the select lever 1 in the direction of arrow N.

Reference numeral 11 denotes a recording lever provided with guide shafts 12, 12 and elongated holes 13, 13 assembled so as to be movable in the direction of arrow A-A' in parallel with the select lever 1. The recording lever 11 is for obtaining a recording state. A lock pawl 14 is provided with which a lock piece of a lock lever (to be described later) engages, and an inclined surface 15 is provided at approximately the same location as the inclined surface 8 of the select lever 1.
is formed.

A spring 16 biases the recording lever 11 in the direction of arrow N.

Reference numeral 17 indicates a guide shaft 18, and the guide shaft 12 is combined with long holes 19, 19, and is movable in the direction perpendicular to the moving direction of the select lever 1 and the recording lever U, in the direction of arrow B-B'' in the figure. The lock lever 17 is selectively fitted into the two recessed fitting portions 4 or 5 of the select lever 1 as a tenth lock portion, and the raised portion 6
A lock pin 20 is provided in a relationship such that it rides on the recording lever 11, and a lock piece 21 is provided as a 20th lock portion in an engaging relationship with the lock pawl 14 of the recording lever 11 through a slope 14''. .

A spring 22 biases the lock lever 17 in the direction of arrow B'.

What is important here is that if the recording lever 11 is operated when the operation position of the select lever 1 is set by fitting the lock pin 20 into the recessed fitting part 5, the slope 14' of the lock pawl 14 will move. The lock lever 17 is moved in the direction of arrow B through the lock piece 21 against the force of the spring 22, and the lock pin 20 escapes from the recessed fitting part 5 to release the lock of the select lever 1. Yes, and when the operating position of the recording lever 11 is set by the engagement of the lock piece 21 with the lock pawl 14,
When the select lever 1 is operated, the raised portion 6 between the recessed fitting portions moves the lock lever 17 in the direction of arrow B through the lock pin 20 against the force of the spring 22, and the lock piece 2
1 from the lock pawl 14 to release the lock of the recording lever 11. 23 is a take-up reel stand having a take-up reel spindle 24, and a rubber ring 25 is provided on the peripheral edge thereof.

26 is a supply reel stand having a supply reel spindle 27, and a gear 28 is formed on the peripheral edge thereof.

Reference numeral 29 designates a swinging arm that is swingable about a shaft 30. A drive pulley 33 is provided on the swinging arm 29 to which rotational force is transmitted from a motor 31 via a belt 32. A drive shaft 34 and a drive gear 35 are coaxially provided on the drive pulley 33.

The drive shaft 34 is arranged so as to contact the rubber ring 25 of the take-up reel stand 23 when the swing arm 29 swings counterclockwise, and the drive gear 35 is arranged so that it contacts the rubber ring 25 of the take-up reel stand 23 when the swing arm 29 swings counterclockwise. It is arranged so that when it swings, it always meshes with the gear 28 of the supply reel stand 26 and meshes with the transmission gear 36. 37 has elongated holes 39, 39 in the guide shafts 38, 38.
The slide plate 37 has a follower protrusion 40 on which the slope 8 of the select lever 1 or the slope 15 of the recording lever 11 slides. In a stopped state in which neither the select lever nor the recording lever is operated, the neutral position is maintained by the stepped portion 8'' formed on the inclined surface 8 of the select lever 1. There is.

Reference numeral 41 denotes a spring for urging the slide plate 37 in the direction of arrow B'' and causing the follower protrusion 40 to follow the inclined surface.

42 is a U-shaped spring fixed to the slide plate 37 by a shaft 43, and the spring 42 is attached to the swing arm 2.
9, and is configured to swing the swing arm 29 via the U-shaped spring 42 by moving the slide plate 37 in the direction of arrow BB'. .

45 indicates that the slide plate 37 moves from the neutral position to arrow B.
The power switch 46 which is closed when the switch is moved in the direction shown in FIG.

Reference numeral 47 denotes a recording/reproducing head, and 48 an erasing head rotatably provided around a support shaft 49. The erasing head 48 has a magnet 50.

51 is a rotating lever that rotates a shaft 52, one end of which is sandwiched between projecting pieces 53, 53 so as to interlock with the recording lever 11;
The notched groove 54 at the other end engages with a pin 55 planted on the lower surface of the erasing head 48, and when the recording lever 11 is operated, the rotating lever 51 rotates counterclockwise.

This rotation causes the erasing head 48 to rotate clockwise so that the magnet 50 is set from an inoperative position in which it is spaced apart from the tape 57 in the force set 56 to an activated position in which it contacts the tape 57. has been done. The tape recorder of the present invention is constructed as described above, and its operation will be explained below.

FIG. 1 shows a stopped state, at which time the lock pin 20 of the lock lever 17 is fitted into the recessed fitting part 4 of the select lever 1. 1 From the stop state to the play state shown in Figure 1, move the select lever 1 to the spring 1
When operated in the direction of arrow A against the force of 0, the lock pin 20 that had been fitted into the recessed fitting part 4 is pushed out, and the lock lever 17 moves in the direction of arrow B against the force of the spring 22. Then, by fitting the lock pin 20 into the adjacent recessed fitting part 5, the operating position of the select lever 1 can be locked.

By operating the select lever 1, the slide plate 3 is locked to the step 8'' following the inclined surface 8 and is in the neutral position.
7 is pressed along the inclined surface 8, and as a result, the slide plate 37 moves in the direction of arrow B against the force of the spring 41. As the slide plate 37 moves, the U-shaped spring 42 also moves in the same direction, and the swing arm 29 swings counterclockwise via the spring 42, causing the drive shaft 34 to move toward the take-up reel stand. It will be pressed against the rubber ring 25. On the other hand, as the slide plate 37 moves in the direction of arrow B, the power switch 45 is closed and the motor 31 rotates counterclockwise. It is possible to wind up the tape by rotationally driving it in the direction.

At this time, the magnet 50 of the erase head 48 is in an inoperative position away from the tape, and the tape 57 can be played back by the recording/playback head 47.

Such a reproducing state is shown in FIG. 2. From the stopped state to the recording state From the state shown in FIG.
When the lock lever 17 is operated in the direction of arrow A against the force, the slope 14'' of the lock pawl 14 moves the lock lever 17 via the lock piece 21 in the direction of arrow B against the force of the spring 22, and the lock pawl 14 engages with the lock piece 21, the operating position of the recording recorder 11 can be locked.

By operating the recording gear 11, the slope 15 causes the slide plate 37 to move through the follower projection 40 in the direction indicated by the arrow B.
It will be moved in the direction.

As a result, the power switch 45 is closed and the drive shaft 34 is connected to the rubber ring 25 of the take-up reel stand 23 in the same way as in the above-mentioned reproducing state.
The rotating lever 51 is rotated counterclockwise by the projecting pieces 53, 53, and the erasing head 48 is rotated clockwise when visiting the source, so that the magnet 50 comes into contact with the tape 57. Can be set in the working position, the third
The recording state shown in the figure can be obtained. 3. Fast forwarding state from playback state In the playback state shown in FIG. 2, further operate the select lever 1 in the direction of arrow A to apply manual pressing force to push out the lock pin 20 fitted in the recessed fitting part 5. As a result, the switch 46 can be closed by the switch operation protrusion 9 provided on the select lever 1.

At this time, the follower protrusion 40 of the slide plate 37 is located on the flat surface 8'2 following the inclined surface 8 of the select lever 1, so the slide plate 37 and the swing arm 29 remain in the same position as in the playback state. . Therefore, the governor circuit of the motor is shot by closing the switch 46, so that the rotational speed of the motor 31 is increased compared to that during playback, and the take-up reel stand 23 is rotated at high speed by the drive shaft 34. It is possible to drive the tape to fast-forward by rotating it.

This fast-forwarding state continues only as long as manual pressing force is applied to the select lever 1, and when the pressing force is released, the select lever 1 is not locked and returns to the direction of the arrow N by the force of the spring 10. By fitting the lock pin 20 of the lock lever 17 into the recessed fitting part 5 again,
When the switch 46 is opened, the playback state can be returned to the playback state.

4. From the playback state to the recording state In the playback state shown in FIG. 2, when the recording lever 11 is operated in the direction of arrow A, the lock pawl 14 of the recording lever 11
is locked against the lock piece 21 of the lock lever 17, and at the same time when the lock pawl 14 is locked onto the lock piece 21, the lock lever 17 moves in the direction of arrow B against the force of the spring 22. The lock pin 20 escapes from the recessed part 5 that determines the playback position of the select lever 1, and the select lever 1 is unlocked and returned in the direction of arrow A'' by the force of the spring 10, and the lock lever 17 The lock pin 20 will fit into the recessed fitting part 4.

Accordingly, based on the operation of the recording lever 11, the slide plate 37, swing arm 29, power switch 45, and rotation lever 51 operate in the same manner as described above, and a recording state can be obtained.

From the recording state to the playback state When the select lever 1 is operated in the direction of arrow A in the recording state shown in FIG.
As the lock pin 20 is pushed out, the lock lever 17 moves in the direction of arrow B against the force of the spring 22, and then the lock pin 20 of the lock lever 17 fits into the adjacent recessed fitting part 5, thereby opening the select lever. At the same time, the lock lever 17 can be locked.
As the lever moves in the direction of arrow B, the lock piece 21 separates from the lock pawl 14, so that the recording lever 11 is unlocked and returned to the direction of arrow A by the force of the spring 16.

Therefore, the above-mentioned reproduction state can be obtained based on the operation of the select lever 1.

In the above explanation, select lever 1 or recording lever 1
1, the recording lever 11 or the select lever 1 is unlocked and returned to its original state, and at the same time the select lever 1 or the recording lever 11 is locked in the operating state. If the recording lever 11 is lightly pressed to return the recording lever 11 or the select lever 1, and then the pressing force on the select lever or the recording lever is removed, the stop state can be immediately brought to a halt state.

→ Effects of the Invention Since the tape recorder of the present invention is configured as described above, it is not only possible to switch from the stop state to the playback state and the recording state, but also to switch directly from the playback state to the recording state and back again. It is possible to switch directly to the playback state from the playback state, and the operation can be performed easily and quickly with one hand.

Therefore, it is small and portable and extremely useful as a tape recorder for recording memos.

[Brief explanation of the drawing]

The figures show the tape recorder of the present invention; FIG. 1 is a plan view in a stopped state, FIG. 2 is a plan view in a playback state, and FIG. 3 is a plan view in a recording state. 1... Select lever, 4, 5... Recessed part, 8, 1, 1 inclined surface, 11... Recording lever 14... Lock claw, 15...One slope, 17...Lock lever 20...Lock pin, 21...Lock piece, 23...
Take-up reel stand, 29... Swinging arm, 34.-
...-Drive shaft, 37...Slide plate, 4
0...Following protrusion, 45...Power switch, 47...1 Recording/playback head, 48...
・Erasing head, 50...-Magnet, 51...
...Rotating lever, 57...-tape.

Claims (1)

[Claims] 1. A tape recorder in which a drive shaft is provided on a swinging arm, and the drive shaft is brought into pressure contact with a take-up reel stand by the swinging of the swinging arm to wind up the tape, and the drive shaft is moved in one direction. A slide plate provided to swing the swing arm; and a common slide plate provided at one end of the slide plate and provided to move independently in a direction orthogonal to the moving direction of the slide plate. at least a select lever for playback and fast forward, and a record lever for recording, each of which has an inclined surface that slides in contact with the following member; and a third lever that locks the playback operating position of the select lever and the operating position of the recording lever. a lock lever which has a first and second lock part, and which releases the lock by operating the other lever after locking one of the operated levers; (2) an erasing head that is switched from a non-operating position to an operating position with respect to the tape when locked by a locking portion, and at the same time selectively locking the select lever or recording lever to an operating position by a locking lever; A tape recorder characterized in that the slide plate is configured to move in one direction through an inclined surface of a select lever or a recording lever.