JPS6013059Y2 - card type recorder - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the improvement of a card-type recorder, and is mainly directed to the Korg card-type recorder which can also be used as a card-to-card duplicator.

Magnetic cards (talking cards) and card-type recorders are already well known, and the applicant has also made several proposals regarding these. When doing so, it is often desirable to copy the recorded audio of a magnetic card, which is a teaching material, onto another magnetic card.

This type of copying method usually involves connecting two card-type recorders with a connecting cord and recording the output signal of one as the input signal of the other, but in practice this requires considerable skill to operate. However, it is extremely difficult to insert a master card and a slave card into two recorders and perform duplication for various reasons.

In view of this, the present applicant has previously proposed a card-type recorder that can also be used as a duplicator, which can easily perform the above-mentioned copying process. New innovations have been made to the main parts of the card drive system,
The aim is to further improve the duplicating function.

A specific example of the proposed card type recorder will be explained below with reference to the drawings.

FIG. 1 is a perspective view showing the appearance of one embodiment of the present invention, that is, one model related to the applicant's earlier application.

In the figure, 1 is the entire card type recorder, 2 is a box with a rectangular outline formed by combining an upper half body 2A and a lower half body 2B, and 3 and 4 are spaced apart along the right longitudinal direction of the upper half body 2A. A first slit and a second slit are formed parallel to each other. However, between the front openings of both slits 3 and 4, that is, the front side of the case 2 at a predetermined position, the rectangular magnetic cards 5 (master card) and 6 (slave card) shown by imaginary lines are inserted. Wide grooves 3a and 4a are formed to facilitate insertion of the card, and index protrusions 3b and 4 are provided at corresponding positions on the upper surface of one side of each mold body, which is each slit member, to indicate the starting position of the card.
b is formed.

In addition, 5' and 6' are magnetic cards (
or a strip-shaped recording medium formed by other means).

Reference numeral 7 indicates an operation section formed as a concave stepped surface near the front right side of the upper half body 2A, and this operation section 7 has a volume heir 8, a playback button 9, a record button 10, and a copy button 11 in order from the front side. and a switch button 12 are provided, and after the switch button 12 is pressed to turn on the power, other buttons are pressed to obtain a desired mode.

In the illustrated card type recorder, the left side of the case where the operation section 7 is provided is the operation front side, and the built-in microphone grill 13 is located near the volume heir 8, and the operation section 7
A speaker grill 14 is provided at the rear of the case, and a jack 15 for earphones and an external microphone is provided at the lower left side of the front surface of the case.

The illustrated card-type recorder is a model in which the transfer path P formed by the slit 3 of the upper half 2A is for reproduction only, and the transfer path R of the slit 4 is used for sound recording. a protrusion 3b indicating the head position;
4b, and the magnetic cards 5.6 inserted into both transfer paths P and R are pulled toward the exit of the transfer path from the same starting position by the rotation of each capstan, which will be described later, and The magnetic tape of the card is slid over the head surface in the transport path.

However, it is only an example that the transfer path P is used only for reproduction and the transfer path R is used for recording sound.

Further, in the figure, reference numeral 16 indicates a drawer handle provided on the front side of the case, and the drawer handle in this example is made of a pair of metal strips 17a and 17b slidably provided on both left and right sides of the case 2. It has a structure in which a grip member 18 having a substantially rectangular cross section made of synthetic resin or the like is fixed to the free end.
Narrow single-shaped notches 19a and 19b extending from the upper surface to the orthogonal inner surface are formed at two locations on the right side of the , the left notch 19a is connected to the transfer path P, and the right notch 19b is connected to the transfer path R.
These one-character notches 19a
, 19b, by inserting the rear lower corner portion of each magnetic card 5, 6 to be inserted into the above-mentioned transfer paths P and R', so that the rear edges of both magnetic cards 5, 6 are aligned on the same line. The rear edges of the magnetic cards on both sides are aligned on the same line, and the insertion positions of the front edges are aligned.

Therefore, by pressing the outside of the grip member 18 as shown by the arrow 20 and sliding the drawer handle 16 by a stroke within the case 2, the magnetic cards on both sides, that is, the master card 5 and the slave card 6, will move at the same time. and each front edge has an indicator protrusion 3b formed on each slit member.
and 4b (start position), and from that position, the audio signal is drawn in by the capstan inside the casing, travels in the transfer paths P and R toward the exit, and is being supplied from the playback head to the recording head. is recorded on the magnetic card 6' of the slave card 6, and since the master card 5 and slave card 6 run synchronously, the duplicates between them also have positional errors in the recording bands 5' and 6' of each magnetic card. Although this rarely occurs, this is closely related to the card drive system described later.

FIG. 2 is a plan view of essential parts schematically showing the internal structure of the card type recorder of this example.

In the figure, 21 is a chassis made of a metal plate or the like, and 22 and 23 are first and second guide strips provided corresponding to the slits 3 and 4 shown in FIG. each has an upward U-shaped cross section,
The master card 5 and the slave card 6 are guided on both sides near the lower edge by 1122av23a between them.

At a predetermined position of the first and second guide strips 22, 23, that is, on an orthogonal line C that commonly crosses the lower part of the index protrusions 3a and 4a, one side of each guide strip 22, 23 has a head. Structures 24A and 24B are respectively disposed, and the head structure 24A includes a reproducing perseverance head 25 and a head structure 2.
4B is equipped with a recording magnetic head 26, and a reproduction transport path P.
The master card 5 is inserted into the recording transfer path R, and the slave card 6 is inserted into the recording transfer path R, and the cards are run as described above.If the copy button 11 (Fig. 1) is pressed at the same time, the desired duplication can be performed. It has become.

Incidentally, the aspects of the magnetic head portions and card drive mechanism of the first and second guide strips 22 and 23 are the same, and the specific structure thereof is similar to that of the corresponding portion of the reproduction transfer path in FIG.
To explain with reference to the diagram (the first guide rule showing the main parts vertically along line C and enlarged), first, the head structure 24A is shown in a simplified form compared to the actual structure on the toilet. However, it basically consists of a head mounting plate 28 that can be adjusted in elevation, and a reproducing magnetic head 25 attached to this to finely adjust the front-rear position, azimuth, etc., and the guide facing this magnetic head. The corresponding portions of the strips 22 are notches 22b with the same spacing.

In FIG. 3, reference numeral 29 indicates a pair of struts supporting both sides of the rear end of the head mounting plate 28, and reference numeral 30 indicates an adjustment screw screwed into the head mounting plate 28 at the front position of the struts. V
The lower end of the letter is brought into contact with the surface of the chassis 21.

On the opposite side of the reproducing magnetic head 25, a capstan 31 made of a rubber roller is located diagonally below the head.
protrudes from the chassis surface, and correspondingly, a pinch roller 32, which is also a rubber roller, is arranged below the head.

That is, the capstan 31 and the pinch roller 32 drive the magnetic card (in this case, the master card) on the card transfer path, but in this example, the pinch roller 32
is pivotally attached to one end of a pinch lever 34 which has an abbreviated shape and is rotated around a pivot shaft 33, and a coil spring 35 is attached to the other end of the lever, so that the magnetic card is transferred by the pinch roller 32. The pinch lever 3 is designed to be pinched with the capstan 31, and to finely adjust the pinching force.
A tapered screw 36 is screwed into the chassis 21 so as to be in contact with the inner edge of the other end of the capstan 36, and by screwing in and unscrewing this taper screw 36, the gap between the capstan 31 and the pinch roller 32 can be finely adjusted. It has become.

Further, 37 is a card pressing rubber roller made to correspond to the surface of the playback head 25, and this rubber roller 37
is provided in order to bring the magnetic tape 5' attached to the surface of the magnetic card 5 into proper sliding contact with the head surface. It is pivoted and presses against the back side of the magnetic card.

That is, the bent portion of the lever 38 is pivotally connected to a stepped small diameter portion 40 which is the upper end of a column 39 erected on the surface of the chassis 21, and the rubber roller 37 can be elastically biased as required at the other end of the lever. A coil spring 41 is connected.

Note that the card drive mechanisms in the head structure 24B and the recording head 26 of the second guide strip 23 have the same configuration as described above, so the same symbols with dashes are attached to each of these members. Omit duplicate explanations.

23b indicates a notch in the guide strip 23.

From the above, the card drive mechanism of the playback transport path P and the recording transport path R is already clear, but one problem here is that the capstans 31 arranged on both card transport paths
The problem lies in how to synchronize the rotational speeds of 31' and 31', and if there is a discrepancy in the circumferential speeds of both,
During the duplication process, a slow speed will occur between the master card 5 and slave card 6.

Therefore, this model is equipped with effective means to avoid such inconveniences.

2 and 4 (longitudinal cross-sectional view on the line A-A'-A in FIG. 2), 42 is a constant speed motor attached to the chassis 21, 43 is a motor pulley thereof, and 44 is a motor The intermediate flywheel 44 has a required moment of inertia and is integrally provided with a small-diameter reduction pulley 45 on its axis.

Reference numerals 46 and 46' indicate capstan wheels fixed to rotating shafts (capstan shafts) 47 and 47' (not shown) of the capstans 31 and 31' on both sides. A non-stretchable cloth belt 48 continues along the tangent line and reaches the deceleration pulley 45 on the right side.

Specifically, as shown in FIG. 4, a sub-chassis 49 is attached to the lower surface of the chassis 21, and an intermediate flywheel 44, capstan wheels 46 and 46' ( (not shown), the intermediate flywheel 44 is fitted around a support shaft 50 implanted in the sub-chassis 49 via upper and lower bearings 51, and capstan shafts on both sides. 47 and 47' are supported by a pivot bearing 52 of the rusted chassis 49 and a bearing 53 of the chassis 21.

The cloth belt 48 is made of fibers such as Tetoron, nylon (all trade names), or silk woven into a band shape, and its expansion/contraction rate is negligibly small.

The operation and effect expected by setting up such a conduction system is to first obtain sufficient inertia effect from the intermediate flywheel 44 and distribute its smooth rotation evenly to the capstan wheels 46 and 46' connected to the cloth belt 8. The purpose is to rotate the capstans 31 and 31' of both transfer paths synchronously, and it has been confirmed through experiments that the desired effect can be achieved in practice.

Incidentally, in the case of this example mechanism, the flywheel effect of the capstan wheel is not necessarily important.

Next, as shown in FIG. 2, the recording head 2 of the recording transport path R is
An erasing head 54 is disposed near the upstream side of 6.
A pressing roller 55 made of, for example, rubber is positioned opposite the surface of the erasing head.

This pressing a-ra 55 is a member for pressing and sliding the magnetic tape 6' (see FIG. 1) of the slave card 6 being transferred against the erasing head surface to increase the erasing rate. From this point of view, the pressure roller 55 must be elastically biased against the surface of the erasing head 54.

Reference numeral 56 in the figure indicates an abbreviated support arm with a pressure roller 55 pivotally attached to one end thereof and elastically biased clockwise about a pivot shaft 57. A coil spring 58 is connected.

However, what should be noted here is that if the slave card 6 is transferred with the pressure roller 55 in contact with the erasing head 54, the slave card 6 will be
It is natural that the sliding friction of 2000 becomes a resistance to the transfer force. , the master card 5 and the slave card 6 are prevented from running at the same speed, and a situation arises in which the running speed of the slave card 6 becomes tJ more than that of the master card 5.

In addition, from another point of view, a disadvantage that is more in line with the actual situation is that at the moment the slave card 6 being transferred leaves the surface of the erasing head 54, a force that repels the card toward the downstream side acts on the rear edge of the slave card 6.

Therefore, at that point, the slave card 6 receives a so-called clinic motion, so the recording signal from the recording head 26 becomes a recording similar to a skipping sound, and the clinic sound is recorded as noise.

In this embodiment, in order to eliminate the above-mentioned inconvenience,
A predetermined clearance C is always kept between the surface of the erasing head 54 and the pressure roller 55 (this may be a fixed hem such as a pad) (see FIG. 5), and the pressure roller and the pad A vector in the card running direction is given to the elastic force applied to the card pressing member such as , to avoid the click motion effect when the slave card 6 is separated from the erasing head 54, and to prevent the slave card 6 from passing the erasing head position. This reduces the sliding friction during sliding contact, thereby improving each of the problems mentioned above.

The clearance C between the card pressing member, including the example pressing roller 55, and the erasing head 54 should be set somewhat narrower than the thickness t of the magnetic card, and can be adjusted freely. .

That is, 59 in FIG. 2 indicates a stopper member equipped with an adjusting screw 59', and the tip of the adjusting screw 59' is connected to the support arm 56.
By bringing it into contact with the other end, the clearance between the above-mentioned pressing member and the erasing head is adjusted appropriately.

Note that the position of the pivot shaft 57 of the support arm 56 is selected in a predetermined manner in relation to the direction of the above-mentioned vector.

The above is an example of a duplicator-type card-type recorder according to the present invention, but in short, the gist of the present invention is that in this type of card-type recorder that has transfer paths for a master card and a slave card, The card drive capstans are rotated synchronously, and an elastic belt such as a rubber belt and a non-stretchable cloth belt are cleverly placed between the drive source motor, intermediate flywheel, and each capstan wheel. Although it has a relatively simple structure, it is possible to transfer the master card and slave card at the same speed, so the original duplication can be carried out rationally. It brings about such excellent effects that the practical benefits obtained are extremely large.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view showing an example of a card type recorder to which the present invention can be applied, Fig. 2 is a plan view of main parts showing its internal structure, and Fig. 3 is a main part for explaining the magnetic card drive mechanism. FIG. 4 is a longitudinal sectional view taken along line A-A'-A in FIG. 2, and FIG. 5 is a plan view of essential parts for explaining the erasing head portion. In the figure, 1 is the entire card-type recorder, 2 is a case, P is a playback transport path, R is a recording transport path, 5 and 6 are magnetic cards, 16 is a drawer handle, 21 is a chassis, and 25.26 are Playback head and recording head, 31.31' is a capstan, 32.32' is a pinch roller, 42 is a motor, 43 is a motor pulley, 44 is an intermediate flywheel, 44' is a rubber belt, 45 is a deceleration pulley, 46.46 ' is a capstan wheel, 48 is a cloth belt, 54 is an erasing head,
55 is a pressure roller, and 56 is a support arm.

Claims (1)

[Scope of utility model registration request] A duplicator-type card-type recorder having a transfer path for a master card and a slave card that run substantially in parallel, an intermediate flywheel driven by a drive source via an elastic belt and connected to a speed reduction means for the intermediate flywheel. A card type machine comprising at least two wheels rotated synchronously by a cloth belt or the like, and a capstan mounted on the same axis of each wheel, with each capstan facing each of the card transfer paths. recorder.