JPS5928537Y2 - card type recorder - Google Patents

Description

[Detailed explanation of the invention] This invention mainly consists of forming a recording band by pasting magnetic tape on the longitudinal part of a rectangular card, and displaying characters and figures on the margin of the magnetic card in one row. Regarding a card-type recorder that records and reproduces data by running it, it is suitable for use, for example, in language exercises. In order to avoid erroneously pressing the record button during playback, we would like to propose a new locking mechanism that can lock the record button using the operation of a card detection member placed facing the card path.

A specific example of the present invention will be explained below with reference to the drawings.

FIG. 1 is a plan view showing an example of a magnetic card that can be applied to the card type recorder of the present invention.

This is a rectangular magnetic card made of relatively strong paper.
A recording band 2 (in this example, a 6.25 mm wide magnetic tape is attached) parallel to the lower edge is provided on the surface.
For example, the foreign language 3 and figures 4 to be learned are printed in the margins, and normally the standard voice of the foreign language 3 is recorded in advance on the first track 2a of the recording band 2 by the instructor. Students can learn both visually and aurally while playing this, and also use the second track 2b to record and play back their own pronunciation so that they can compare it with the standard pronunciation. being done.

That is, the recording band 2 of the magnetic card has two tracks, and the recorder described later also has a switching mechanism to make the magnetic head (erasing head and recording/reproducing head) correspond to the husband's track. It is a 2-track monaural system.

FIG. 2 is an external perspective view showing an example of a card-type recorder according to the present invention, in which 5 is the card-type recorder as a whole, 6 is a shell-shaped upper half body 6A and a lower half body 6B (both are resin molded products). ) by, for example, matching the inset edge,
and a box with a rectangular outline formed by combining them, 7 is an upper half body 6A
The front opening of this slit 7, that is, the area near the front of the case 6, is a slot for inserting the magnetic card 1 (shown in phantom lines). The insertion part 7a has a wide width to facilitate the insertion, and the edges on both sides from the insertion part 7a to the position where the slit 7 is formed are chamfered 7b.

On the left side of the slit 7, there is a slightly wide band-like stepped portion 8ai, and on the right side, a narrow protrusion 8b is provided with the same height. An arrow display 9 indicating the direction and index protrusions 10 corresponding to, for example, play start and final positions inside the case are formed by integral molding.

In this example, the slit member including the band-like stepped portion F3a, the protrusion 8b, etc. is a separate molded product, and this member is made of a resin material of a different color from that of the upper half body 6A.

Reference numeral 11 denotes an operating section formed as a concave stepped surface near the front left side of the upper half body, and this operating section 11 has a volume knob 12 and a student push button 13 sequentially from the front side.
, an instructor push button 14 and a recording push button 15 (recording button).
4 are interlocked via links, for example, so that when one is pressed, the other protrudes and returns to its original state.

That is, by this operation, the erasing head and the recording/reproducing head are made to correspond to each of the first and second tracks 2a and 2b (see FIG. 1) constituting the recording band 2 described above.

Note that the card-type recorder 5 of this example has the left side of the case where the operation section 11 is provided as the operation front, and has a microphone grill 17 near the volume knob 12, with a microphone inside. The rear portion of the operating section 11 is a speaker grill 18, and a speaker 18' is provided inside the case facing the grill.

In addition, a drawer handle 19 having a U-shape, for example, is provided on the surface of the card insertion portion 7a, that is, on the front surface of the case, for convenience when carrying the recorder, or when storing the recorder. The drawer handle itself is widely used in general tape recorders, but in this example, the handle 19 shown in the figure is simply used to carry the recorder. Not only for
The upper end surface 19' serves as an edge guide from the initial stage of insertion of the magnetic card 1 into the transfer slit 7 until the time of transfer.

FIG. 3 is a schematic plan view showing the main parts of the internal mechanism.

In the figure, reference numeral 20 indicates a chassis provided inside the case, and this chassis 20 is made of, for example, a resin molded product, and a part of its surface has a guide corresponding to the above-mentioned card transfer slit 7 (see FIG. 2). A strip 21 is formed.

This guide strip 21 has an upwardly U-shaped concave groove 22 that guides both sides near the lower edge of the magnetic card 1 shown in FIG. The width portion 22a is approximately commensurate with the width, and a portion near the rear portion is a cutout portion 22b for locating a detection portion of a capstan, a pinch roller, and an actuator, which will be described later.

Reference numeral 23 designates a head board as a whole, which is arranged approximately along one side of the guide strip 21 and is movable up and down at a predetermined pitch in a direction perpendicular to the plane of the paper. It is fitted around the erected support shaft 24 and is elastically biased clockwise, and is provided with an erasing head 25 and a recording/reproducing head 26 on its left free end, and guides these heads. It is placed so as to face above the strip 21 and come into sliding contact with the track of the recording band 2 of the magnetic card 1 that is guided by the groove 22 of the guide strip 21, that is, either the first or second track 2a or 2b. This is configured.

Reference numeral 27 denotes a rotatable pressing elastic roller disposed so as to correspond to the head surface of the erasing head 25, and 28 denotes the above-mentioned notch 2.
A capstan 28' provided facing 2b indicates a flywheel located under the chassis 20. Generally, the flywheel 28', which is directly connected to the capstan 28, is driven by a motor other than that shown in the figure. It is similar to a tape recorder.

However, the capstan 28 in this example is a rubber roller that not only transports the card but also presses the card against the recording/reproducing head 26.

29 is a pinch roller disposed below the recording/reproducing head 26; 30 is a pinch lever that is, for example, L-shaped; and 31 and 32 are springs that bias the pinch lever 30 and the head substrate 23 in a predetermined direction. shows.

As already mentioned, in the illustrated card type recorder, the vertical positions of the erasing head 25 and the recording/reproducing head 26 are mechanically switched. It will be done.

The seesaw lever 33 of this example is made of a synthetic resin molded product, extends substantially orthogonally to the head substrate 23 toward the operation front side, and has one end inserted into an engagement hole (described later) formed in the head substrate 23. The other end is the vertical movement rod 1 of the push button 14 for instruction.
4', and is provided with an integrally molded pivot shaft 33' approximately in the center thereof, and is supported by a pair of rising pieces 34 formed at predetermined positions on the surface of the chassis 20. There is.

That is, as is clear from the explanation of FIGS. 1, 2, and 3, tracks on the recording band 2 of the magnetic card 1 are switched by alternately pressing the push buttons 13 and 14.

Further, 13', 14', and 15' are vertically movable rods integrated with the respective push buttons 13, 14, and 15, 35 shown in broken lines is an interlocking link, and 37 is a click stop for moving the head board 23 at a switching position on the support shaft 24. 38 is a plate spring for suppressing the same, 39 is an arm supporting the erasing head 25, and one end of this arm is pivotally connected to the head substrate 23, and a helical coil wound around the pivot shaft 40. It is biased clockwise by a spring 41 or the like.

FIG. 4 is a perspective view for explaining the head substrate 23;
The figure is shown inverted, and corresponding parts are given the same reference numerals.

The head board 23 of this example is made of a sheet metal part based on an abbreviated shape, and the erasing head 25 and the recording/reproducing head 26 are disposed on the right side of the horizontal plate 42 as described above. , a horizontal plate 42 to which the recording/reproducing head 26 is directly attached.
The right end portion 43a is a slightly higher stepped portion, and the erase head 2
5 and the recording/reproducing head 26 are level-aligned.

Note that 44 is a vertical plate, the left side of which is reinforced by a narrow rib 43b extending from the horizontal plate 42.

Reference numeral 45 indicates an upper plate formed by bending the upper side of the head substrate 23, that is, a part of the vertical plate 44 to the front side, and the corresponding portion of the upper plate 45 and the horizontal plate 42 has a U-shape. The letter-shaped portion has through holes 46 (46a, 46b) with a common axis.
are formed, and the above-mentioned support shaft 24 is fitted into these through holes 46.

Also, the vertical plate 4 is located on the axis perpendicular to the axis of the through hole 46.
A through hole 47 is also bored in the approximate center of the ball 4, and the steel ball 37 is inserted into the through hole 47 (see FIG. 3), and its externally exposed spherical surface is pressed by a plate spring 38. , a click operation is given to the head substrate 23 which is moved up and down along the stepped peripheral surface of the support shaft 24, and positioning is performed on the switching track.

48 is an engagement hole into which one end of the seesaw lever 33 described above is inserted.

By the way, in a card-type recorder such as this example, by utilizing the fact that the magnetic card 1 is made of a relatively strong material,
When the card is inserted into the transfer path, the power switch is turned on by the front edge of the card itself, for example via an actuator, and the power is turned on when the card passes the position, that is, the position at which recording or playback ends. The configuration is such that it can be turned off.

That is, in FIG. 3, 49 is a microswitch for driving and amplifier 1, 49' is an actuator thereof, and 50 is a rotatable actuator provided in relation to this actuator.
By rotating the actuator 50 in the direction of the arrow, the microswitch 49 is turned on.

In the illustrated state, the actuator 50 is biased counterclockwise by the elastic restoring force of the actuator 49'.

51 indicates the axis of the actuator base.

The illustrated actuator 50 is made of a synthetic resin molded product and has a shape as shown in FIG.

That is, this is the arm 52 bent forward in the figure.
The right base has a through hole 51' for pivoting, and the free end of the narrow lever extending leftward has an acute angle-shaped detection part 53.
The detection section 53 is connected to the guide strip 2 as shown in FIG.
The notch 22b of 1 is located between the erasing head 25 and the recording/reproducing head 26.

Further, the detection section 53 is set at a predetermined height from the surface of the arm 52, and a small radius is added to the ridge.

Now, under the condition shown in FIG. 3, as shown in FIG. 2 and explained above, insert the magnetic card 1 from the card transfer slit 7 into the groove 22 of the guide strip 21 inside the case. When the magnetic card is slid in the direction of arrow 9 (FIG. 2), the front edge of the magnetic card collides with the slope of the detecting portion 53 of the actuator and pushes it away.

Therefore, the entire actuator 5° is rotated clockwise as shown by the arrow, and the microswitch 4 is rotated via the actuator 49.
Turn on 9.

In this way, 1, the drive system and circuit system are also turned on, the magnetic card 1 is transported at a constant speed, and the recording state is changed to the first track 2a or the second track 2b of the recording band 2, or to any one of them. The playback status from the track can be revealed.

The present invention constitutes a locking means that is operated in conjunction with the above-mentioned actuator 50 during playback, for example, in such a card type recorder, and this locking means controls the recording button 1.
This was done to prevent erroneous erasure by locking 5.
In the case of this embodiment, even when the recording button 15 is operated normally, that is, during recording, the recording button can be locked at a predetermined pressed position by the locking means.

In FIG. 3, reference numeral 54 indicates a plunger type solenoid (hereinafter abbreviated as plunger) provided on the left side of the vertical movement rod 15' of the recording button 15, 55 indicates its operating rod, and the plunger 54 and the above-mentioned driving motor (not shown) is a microswitch 49 (connected in parallel to the DC power supply that is turned on and off), and is in an energized state when the actuator 50 is rotated clockwise by the front edge of the magnetic card 1. A bell crank 56, for example, is connected to the rod 55.

This bell crank 56 is the vertical movement lever 15' of the recording button 15.
It has a locking piece 57 and a connecting piece 58 facing one edge part, the bent part of which is pivotally supported by a pivot pin 59,
A pin 55 erected at the free end of the rod 55 is positioned in the elongated hole 58' formed in the connecting piece 58, and the plunger 54
When energized, it rotates clockwise.

In correspondence with the locking piece 57 of the bell crank 56, engagement grooves 60 are formed at two locations on the upper and lower sides at a predetermined interval in the edge portion of the vertically movable rod 15'.
When the lock piece 6 is rotated, the free end of the lock piece 57 enters into one of the engagement grooves 60.

FIG. 6 is a perspective view for explaining the recording button 15, its vertically movable lever 15', and the bell crank 56;
As described above, upper and lower engagement grooves 60, 60a, and 60b are formed at predetermined intervals in the individual edge portion, and in the illustrated state, the lock piece 5 of the bell crank 56 is located in the lower engagement groove 60b.
7 is shown, the pressing stroke of the recording button 15 in the free state is constant, and the structure is such that it automatically returns to the pressed position.
The engagement grooves 60a and 60b are formed at intervals corresponding to the above-mentioned stroke with respect to the edge portion of the vertically movable rod 15'.

Note that 59' indicates a through hole for pivoting the bell crank, and other symbols are assigned corresponding to those in FIG. 3.

In the above configuration, to explain the operation mode during playback, for example, the first track 2a of the magnetic card 1 has been recorded by the instructor as described above, and when trying to play back this standard audio, First, press the instructor push button 14 to make each head on the head board 23 correspond to the first track 2a, and then insert the magnetic card 1 from the front side of the slit 7 of the case 6 into the inner guide strip 2.
When the magnetic card is inserted into the groove 22 of No. 1 and slid, the microswitch 44 is closed by the front edge of the magnetic card via the actuator 50. Therefore, the driving system and the reproduction circuit system of No. 1 are also turned on, and at the same time Plunger 5
4 and placing it in an assisted state can be understood from the above description.

Further, since the actuator 50 is only urged in the direction of the concave groove 22 of the guide strip 21 by the restoring force of the actuator 49' of the microswitch 49, the actuator 50
Compared to the case where a spring is attached to the actuator 0 itself to bias it, or when a mechanical locking interlocking means is attached to the actuator 50, the biasing force of the actuator 50 in the direction of the groove 22 is weaker. When the protruding detection part 53 is pressed by the front edge of the magnetic card 1, it is immediately rotated and activates the microswitch 49, and since unnecessary load and vibration are not applied when the magnetic card 1 is running, it can be operated at a steady state. There is no change in speed and recording or reproducing level, and the magnetic card 1 is connected to the head 25.
．． 26 to ensure reliable recording or reproduction.

That is, when the magnetic card 1 starts running, the recording button 15 is moved between the retaining groove 60b of the vertical movement rod 15' and the bell crank 5.
It is locked by engagement with the lock piece 57 of 6 (
(See Figure 6).

Therefore, since it is impossible to press the record button 15 during the reproduction process, there is no risk of erroneous erasure, and the lock of the record button 15 is also released when the reproduction state ends.

Note that this also applies to the reproduction of the second track 2b.

Next, in the case of a recording operation, it is sufficient to select one of the tracks using the push buttons 13 or 14, and insert the magnetic card 1 as described above while pressing the record button 15. Upper engagement groove 60a of rod 15'
Since the lock piece 57 of the bell crank 56 enters into the ring, the recording button 15 can be locked at a predetermined pressed position.

Thus, according to the present invention, in this type of card-type recorder, the record button is completely locked during playback operation, so there is no risk of accidental erasure, and this is particularly effective for preserving records of instructor tracks. When using a commercially available magnetic card for Glue, L, etc., it is possible to almost prevent inconveniences such as the recorded standard voice etc. being erased due to erroneous operation.

Further, according to the present invention, since the card detection member is energized in the direction of the card travel path only by the restoring force of the switch operated by the member, unnecessary loads and vibrations are not applied to the magnetic card. This ensures smooth running and reliable recording and playback.

Furthermore, the present invention is extremely simple in structure, making it suitable for mass production, and therefore advantageous in terms of cost.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an example of a magnetic card, FIG. 2 is an external perspective view showing an example of a card-type recorder to which the present invention is applied, FIG. FIG. 4 is a perspective view showing an example of the head board, FIG. 5 is a perspective view showing an example of the actuator, and FIG. 6 is a perspective view showing the relationship between the recording button and the bell crank. 1 is a magnetic card, 2 is a recording band, 5 is the entire card type recorder, 6 is a case, 7 is a slit, 11 is an operating section, 13 is a push button for the student, 14 is a push button for the instructor,
15 is a recording button, 15' is its vertical movement lever, 20 is a chassis, 21 is a guide strip, 23 is a head board, 24 is a support shaft, 2
5 is an erasing head, 26 is a recording/reproducing head, 28 is a capstan, 29 is a pinch roller, 33 is a seesaw lever 35
is an interlocking link, 49 is a microswitch, 50 is an actuator, 52 is its arm, 53 is a detection section, 54 is a plunger, 56 is a bell crank, 57 is its lock piece,
Similarly, 58 is a connecting piece, and 60 is an engagement groove.

Claims (1)

[Scope of utility model registration request] It has a card detection member disposed facing the travel path of the magnetic card, and is operated by the card detection member that is moved when the magnetic card is inserted into the travel path to operate the amplifier system and the first drive system. The recording button is locked in the recording position or the non-recording position by electromagnetic means operated by the switch that is set to the state, and the card detection member is energized in the direction of the traveling route only by the restoring force of the switch. A card-type recorder that is characterized by its unique features.