WO1980000892A1

WO1980000892A1 - Educational magnetic reproduction apparatus

Info

Publication number: WO1980000892A1
Application number: PCT/JP1979/000270
Authority: WO
Inventors: K Nagashima; T Yoshinari; H Tanimoto
Original assignee: Shinano Kikaku Co Ltd
Priority date: 1978-10-24
Filing date: 1979-10-24
Publication date: 1980-05-01

Abstract

An educational apparatus for reproducing visible information drawn on the front surface of a magnetic sheet (2) and audio information related to the visible information and recorded on the back of the magnetic sheet (2), via a head (5) provided on a turntable (4), the magnetic sheet (2) being inserted into the apparatus in the direction of an arrow and then positioned in the apparatus. A roller (8) is pivotally secured to the lower portion of a pin (3) for positioning the magnetic sheet (2) so that the pin (3) is entirely urged upwardly by a spring (9). High and low cam surfaces (6a') and (6a'') are concentrically provided under the turntable (4). When the turntable (4) is stopped, the roller (8) makes contact with the cam surface (6a') to depress the pin (3) so as to thus readily insert the magnetic sheet (2). When the turntable (4) starts turning, the roller (8) is separated from the cam surface (6a') to cause the pin (3) to be moved upwardly so as to exactly position the magnetic sheet (2) at a conical head (3a) of the pin (3). Idlers (16), (17) are interposed among a motor (13), a flywheel (14) and the turntable (4) to equalize the turning of the turntable (4) at constant speed.

Description

Akira Magnetic playback device for learning

.Technical field

The present invention provides a magnetic sheet or a magnetic card having a plurality of magnetic tracks each recording a plurality of independently classified visible information on a front surface and audio information respectively different from the visible information on a back surface. The present invention relates to a magnetic reproducing device for learning in a form using a code.

Background art

Conventionally, a plurality of magnetic trajectories, in which the front surface is divided into a plurality of pieces of visible information consisting of animal pictures and the corresponding English language etc. on the front side, and the back side records audio information respectively corresponding to the front side pattern. When a number of magnetic sheets or cards with concentric arrangements are prepared and placed, and the magnetic sheet or card is inserted into a predetermined position, the selected visible information is obtained. There is known a magnetic reproducing apparatus that reproduces only corresponding audio information, thereby enabling audiovisual learning.

In this type of device, it is important that the magnetic sheet or force is always correctly set in place. That is, if the device is operated with the magnetic sheet or card not properly set, it may cause a tracking error or damage the device itself. Sometimes.

OMPI

/ ,, W WIIPPOO. Therefore, an object of the present invention is to automatically position the magnetic sheet or card when the drive is started by inserting the magnetic sheet or force into the predetermined place. To provide a magnetic reproducing apparatus of this kind, in which the magnetic track is made to coincide with the trajectory of the movement of the reproducing head.

It is another object of the present invention to provide a magnetic sheet or magnetic device for positioning such a force such that the motion of the device does not adversely affect the motion of the drive. In order to provide a playback device.

Disclosure of the invention

According to the invention, the learning magnetic playback device comprises a turntable supporting at least one playback head and a vertical slide to the center of the turntable. The turntable is in a rest position, comprising a positioning pin movably inserted and having a conical head and a control device capable of moving the positioning pin vertically. In some cases, the control device moves the positioning pin to the lower position, and while the turntable is rotating, the control device moves the positioning pin to the upper position. The conical head is inserted into the positioning hole of the magnetic sheet. As a result, when replacing the magnetic sheet, the magnetic sheet can be inserted into a predetermined place without any resistance, and the magnetic sheet is not sufficiently inserted. However, even when the turntable is activated, the magnetic sheet is forced to the correct position.

OMPI

WIPO Can be set to

Further, according to the present invention, the control device includes a force member formed at a lower portion of the turntable, and one end pivotally connected to the substrate and the other end pivotally connected to the positioning pin. It consists of a lever and a σ-la that is rotatably supported by this lever and is rolled and joined to the cam surface. As a result, the vertical movement of the positioning bin is reliably and accurately controlled, so that a tracking error or the like during reproduction is reliably prevented.

Further, according to the present invention, the learning magnetic reproducing apparatus includes a flywheel that is rotated by a driving motor, and a reference to the flywheel. A pair of idlers are provided facing each other between the driving shaft and the peripheral surface of the turntable, and each of the pair of idlers is provided with a pair of idlers. It is resiliently pressed so as to be in rolling contact with the peripheral surface of the drive shaft and the peripheral surface of the turntable, so that the flywheel has a large reduction ratio. The rotation of the motor is transmitted to the turntable. As a result, when the control device is climbing from a low to a high part of the force, the deceleration of the turntable and the force of the The acceleration of the turntable, which prevails when descending from a high part to a low part, is effectively prevented, and the turntable is always rotated at a constant speed. Not only can it be stopped, but it can be stopped at a predetermined position without any displacement during stopping.

Brief description of the drawings FIG. 1 is a perspective view showing the appearance of a magnetic reproducing apparatus according to the present invention and a magnetic sheet used therein, and FIG. 2 is a perspective view showing the magnetic sheet at a predetermined position inside the magnetic reproducing apparatus. FIG. 3 is a horizontal sectional view showing a set state, and FIG. 3 is a vertical sectional view of a main part of the magnetic reproducing apparatus showing a state where the magnetic sheet is set at a predetermined position. FIG. 4 is an enlarged cross-sectional view taken along the line y- of FIG. 3, and FIG. 5 is a plan view showing the turntable and the related power transmission device.

BEST MODE FOR CARRYING OUT THE INVENTION

1 to 4, reference numeral 1 denotes a plurality of lensed windows 1A, 1B, 1σ, 1 each having an activation switch on the top wall, a receiver, and a shield on the side wall. The main body case is provided with a slot 1 1 and a speaker window 1c, etc., and accommodates various devices and a power switch 1a, etc., described below. When a magnetic sheet 2 (to be described below including a magnetic card), which will be described later, is inserted to a predetermined position through the sheet insertion port 1 、, the power switch 1 a Is switched on by the end of the magnetic sheet 2 and turned on. After that, when the lens portion of each of the windows 1A, 1B, 1C and 1D is pressed with a finger, the magnetic The playback circuit and drive are activated so that sound is played back from the speaker window 1c or the receiver (when the receiver is removed). On the surface, SOMPI describes visual learning contents 2A, 2B, 2G, and 2D consisting of different patterns and English words corresponding to those patterns. 'On the back, four concentric arc-shaped magnetic tracks 2a, 2¾, 2c in which voices corresponding to the learning contents 2A, 2Β, 2C, and 2D are recorded in advance. And 2d, and a magnetic sheet having a positioning hole 2 2 formed at the center of these magnetic tracks. A positioning pin C is provided at the substantially central portion of the formed sheet insertion portion 1 e so as to be movable in the vertical direction. When inserted into the seat insert 1e via 1 and the drive force ^s is started, its conical head 3a is positioned in the manner described below. The magnetic sheet 2 can be fixed in the correct position by forcibly fitting it into the hole 2 定. The learning contents of sheet 2, 2B, 2G, and 2D, match windows 1A, 1B, 1c, and 1!>, Respectively, and each magnetic track 2a, 2 2, 2c and 2i are four magnetic reproducing heads 5 (arranged on a turntable 4 which is rotated by a driving device around a positioning pin 3). In Fig. 3, some trajectories are omitted.) ό is a cylindrical assembly which is fixed to the lower surface of the turntable 4 and has the positioning pin 3 slidably inserted in the vertical direction. Cam surface όa 'used to push down positioning pin 5 and cam surface όa "used to push up positioning pin A cam 6a consisting of the following is formed. 7 has one ii 7a pivotally connected to the board 1f of the main body case 1 and the other end 7 pivotally connected to the lower end of the positioning pin 5, and further has a cam όa at the other end 7¾. This is an operation lever on which a roller 8 that can be pivoted to is connected. In FIG. 3, the operation lever 7 is rotated leftward by a spring 9 stretched between the substrate 1f and the lever, that is, the other end 7 is raised. Biased in the direction. Therefore, the end 7 of the operation lever 7 is used for the cooperation of the cam όa and the spring 9 so that when the playback head 5 is at the stop position, the positioning pin is used. The head 5a of 5 has been detached from the positioning hole 2 of the magnetic sheet 2, but when the playback head F5 is moving, the positioning pin is as shown in Fig. 3. Work so that the head 5 a of 5 is fitted into the positioning hole 2 e of the magnetic sheet 2. 10 is installed on the substrate 1f and connected to the switches provided in the windows 1A, 1B, 1C, and 1D, respectively, and the windows 1A, 1B, 1σ 1 The four light-emitting elements are such that when one of the lens parts of D is pressed with a finger, the corresponding one is turned on. 11 is provided on the lower surface of the turntable 4 and is connected to each magnetic reproduction circuit (not shown) corresponding to each of the learning contents 2A, 2B, 2C, and 2D. Light receiving elements. When these light receiving elements receive light from any of the light emitting elements 10, the corresponding recording / reproducing device is operated. this

OMPI IPO The light-emitting element 10 and the light-receiving element 11 constitute a channel selection device 12.

Next, in FIG. 5, reference numeral 13 denotes a motor that is fixed on the substrate 1 and has a pulley 1Sa, and ο14 is a rotatable motor mounted on the substrate 1f. It is a flywheel that is mounted, has a drive shaft 14a, and is connected to the pulley 15a via a belt 15. 16 is pivotally supported by an arm 1 όa movably supported on a substrate 1 f, and can be pressed in the direction of the arrow by a spring shown in the drawing. Accordingly, the drive idler is repelled so as to be in rolling contact with the peripheral surface of the drive shaft 14 a and the peripheral surface of the turntable 4. 17 is pivotally supported by an arm 17a movably supported on a substrate 1f, and a driving idler is provided by a spring (not shown). 1 Pressing in the direction of arrow B from the opposite side causes the pressure to be brought into rolling contact with the peripheral surface of the drive shaft 14a and the peripheral surface of the turntable 4. It is an auxiliary idler for preventing the abnormal rotation and idling. The driving force of the drive motor 13 is the drive force of the pulley 13a, the belt 15, the flywheel 14, the drive shaft 14a, and the drive idler. The torque is transmitted to the turntable 4 at a large reduction ratio through 1ό, and the turntable 4 is rotated in the direction of arrow C.

Next, the operation of the present apparatus will be described.

First, in Fig. 1, magnetic sheet 2 was inserted as shown by the arrow.

OMPI

/ WIPO- Insert it into the body case 1 from the sheet insertion slot 1 ¾ and set it in the sheet insertion section 1 e of the body case 1 as shown in Fig. 2, and then turn on the power switch. Turn on switch 1a. At this time, since the playback head 5 is at the stop position, the end 7 of the operation lever 7 is spun through the mouth 8 from the high cam surface 0a 'of the cam. Depressed against the tension of ring 9. Therefore, the conical head 3 a of the positioning bin 3 is out of the positioning hole 2 の of the magnetic sheet 2, so that the insertion operation of the magnetic sheet 2 is not hindered. Absent. Next, when one of the windows 1A, 1B, 1G and 1D is pressed with a finger, the motor 13 for driving is activated, and the bridge 13a 5, the flywheel 14, the drive shaft 14 a, and the drive idler 1 は, the turntable 4 is indicated by an arrow C in FIG. Start rotating in the direction shown. Thus, when the turntable 4 starts rotating, the cylindrical assembly also starts to rotate, and thus the force όa The high cam surface 6 deviates from the column 8, and the low cam surface ό ^ comes into contact with the roller 8 instead. Therefore, the end 7 ¾ is raised by the tension of the spring 9, and the conical head 3 of the positioning pin 3 is connected to the magnetic sheet 2 as shown in FIG. Positioning hole 2 Θ In this case, even if the magnetic sheet 2 is not sufficiently inserted and the position of the positioning hole 2 多少 is slightly shifted from the correct position, the head 5 a of the positioning bin 3 is conical. Take shape

__ OMPI WIPO- Therefore, the magnetic sheet 2 is forcibly moved to the correct position. Thus, when the positioning of the magnetic sheet 2 by the positioning bin 3 is performed, each of the magnetic tracks 2a, 2, 2c, and 2d becomes four reproducing heads 5a. Each of the motion trajectories is aligned with each other, and only the sound corresponding to the window pressed by the finger is reproduced without any tracking errors. Then, when the turntable 4 continues to rotate and the playback head 5 reaches the stop position again, the roller 18 returns to the high cam of the cam 0a. In order to get on, the-head part 5a of the positioning pin 3 is moved out of the positioning hole 2e of the magnetic sheet 2 again, and at the same time, a stop switch (not shown) is operated. Turntable 4 is stopped.

After the turntable 4 is started, use the roller 8 force to raise the positioning bin 3; when moving from the high cam surface ό to the low cam surface ό a / ', In this process, the turntable 4 is slightly accelerated because the elasticity of the ring 9 acts on the cylindrical assembly via the roller 8. However, a fast-forward phenomenon occurs instantaneously. However, according to the device of the present invention, at this moment, the driving idler 11 し opposes the elasticity acting in the direction indicated by the arrow Α in FIG. Is pushed out in the direction opposite to the arrow A from between the drive shaft 14a and the peripheral surface of the turntable 4, and at the same time, the auxiliary idler 17 is driven. The 14-14a and the peripheral surface of the turntable will bite strongly, so the turntable 4 is accelerated by the large reduction ratio between the flywheel 14 and the turntable 4 and the inertia of the flywheel 14. It is more absorbed and, as a result, prevents the rotation speed of the turntable 4 from increasing. Also, when moving from the lower cam surface ό ^ to the higher cam surface 6 a to lower the positioning pin 5, the rotation speed of the turntable 4 is slightly reduced. This force is also caused by the fact that the drive idler 16 strongly bites between the drive shaft 14 a and the peripheral surface of the turntable 4. Is absorbed as in the above case

As is clear from the above description, when the turntable 4 is stopped or rotating, the turntable 4 can be externally moved by the arrow G or the arrow in FIG. ! ) Even if a rotational force is applied in any of the directions indicated by), the stop position of the turntable 4 may shift or the rotational speed may fluctuate during rotation. Is

O Good o For this reason, audio information corresponding to always selected visible information can be accurately reproduced.

Industrial applicability

As described above, the learning / magnetic reproducing apparatus according to the present invention is useful as a foreign language learning device for beginners, and is particularly suitable for infant / language practice machines.

O PI

Claims

The scope of the claims

1. A turntable that supports at least one playback head, and is slidably inserted vertically through the center of the turntable. A positioning pin having a conical head and a control device capable of moving the positioning pin in a vertical direction, wherein the control device is provided when the turntable is at a rest position. Moves the positioning pin to the lower position, and while the turntable is rotating, the control device moves the positioning pin to the ascending position and the conical A learning / magnetic reproducing device in which the head is fitted into a positioning hole of a magnetic sheet.

1. The control device comprises: a cam formed at the lower part of the turntable; a reporter having one end pivotally connected to the substrate and the other end pivotally connected to the positioning pin; 2. The learning / magnetic reproducing device according to claim 1, comprising a mouth rotatably supported by a bus and rotatably connected to said cam.

3. The flywheel, which is rotated by the drive motor, and between the drive shaft of the flywheel and the peripheral surface of the turntable, And a pair of idlers disposed opposite to each other, wherein the pair of idlers are respectively provided on a peripheral surface of the drive shaft and a peripheral surface of the turntable. It is repressed so as to be in contact with the surface, whereby the rotational force of the flywheel with a large reduction ratio is transmitted to the turntable. The learning magnetic playback device according to claim 1 or 2, wherein the learning magnetic playback device is configured to perform the learning.

OMPI WIPO