JPS6043267A - Recording or reproducing device - Google Patents

Abstract

PURPOSE:To prevent a recording or reproducing head from oscillating and eliminate an accident such as damage to the head and a part which determines the position of the head by providing a head positioning and moving means which moves the head to different positions and a stopping means which stops the movement of the head. CONSTITUTION:A release lever 55 is rotated clockwise until its click pin 55b is held by engaging the 1st click groove 57a of, for example, the click stopper of a main body 1, and its engage pin 56 moves away from a stop lever 52, so this stop lever 52 rotates clockwise with the energizing force of a spring 54 and a head carrier 13 is pressed up by the stop pin 53 through an arm part 13a with the operating force of the spring 54 and clamped between a cam 22. In this case, the energizing force of the spring 54 is set larger than a vibrating force or impulsive force expected to be applied to the head carrier 13 to prevent the vibration of the head carrier 13.

Description

[Detailed description of the invention]

(Technical Field) The present invention provides a recording or reproducing device! (b) Recording or reproducing information by moving the recording and/or reproducing head to different positions on the recording medium. A recording or reproducing device (hereinafter simply referred to as a recording/reproducing device) that records or reproduces information using an 8+4 recording medium such as a magnetic sheet. - The recording track is changed by moving the conversion element such as a magnetic head or the support 81 supporting the conversion element relative to the recording medium. , Head's ¥!!,
j;! 1 at high speed and reducing the energy required for the movement is to reduce the head access time when recording and reproducing information, or to reduce the head access time of the device itself, especially when working overtime.
In order to greatly contribute to the miniaturization of 1J, it is necessary to reduce the isomerism of the movable parts and to reduce the friction of the movable parts. One way to reduce friction in the movable parts is to use a rolling member in the movement guide section for the head support member so that the head support member moves smoothly. By the way, portable recording and reproducing devices are susceptible to vibrations and vibrations during vibration, which can cause vibrations and vibrations in the head support member.Especially, as mentioned above, smooth The more measures are taken to guarantee head movement, the more
It becomes easier to do. If such vibration occurs, accidents such as damage to the head or damage to the part that controls the positioning of the head may occur, resulting in defects in the recording/reproducing device, or the position of the head relative to the recording track (-1'il()). 0 (Purpose) The present invention was made in view of the above circumstances, and it is possible to use a recording or reproducing head as described at the beginning of the recording or reproducing head on a fP medium. Recording or reproducing of information by moving it to a different position on the top and/or re-coupling/reproducing the head. The present invention proposes a unique recording or reproducing device that can prevent accidents such as damage to the spatula P or damage to the part that controls the positioning of the head. (
4i-. (Example) Hereinafter, the means taken in the present invention to achieve the above object will be exemplified and explained using examples shown in the attached drawings. Regarding conventional tS type recording and reproducing devices (Figure 1)
2i'51 is a perspective view showing the main parts of a conventionally proposed recording/reproducing apparatus using a rotating magnetic sheet as a recording medium. In FIG. 1, 1 is a magnetic sheet as a recording medium, 2 is a center hub to be attached to Q, i, and a fist glaze 17 for rotationally driving the magnetic sheet 1. 11
1 shows the main body of the recording and reproducing apparatus, which is equipped with a glaze 17 that rotates the magnetic sheet 1 described above by a motor shown in FIG. 12 is information jjL
f+'% 2 is a magnetic head for reproduction, and mounting plate 1
It is fixed via 2a to a head carrier 13 as a movable member constituting head moving means. Along the direction of movement of the head carrier 13,! /[face■
A rail portion t'14 having a letter-shaped verse i4'a is fixed. On the other hand, an ID rail member 16 is provided on the main body side along the moving direction of the head carrier 13, and has a groove 16a having a 7-shaped cross section. rail member] 4
A head carrier 13 is movably supported via a YK-rule 15 between the two. That is, head race carrier 1
3. In other words, the head 12 is movable in the direction of the center of the rotary drive 1in7. A cam 22 constituting the head moving means and a ratchet shaft 23 as a ratchet I constituting the cam driving means in the head moving means are integrally rotated with respect to the shaft 21 provided on the main body 11. It is pivoted so that it can move. Ratchet teeth 233 are provided at equal intervals on the outer circumference of the ratchet shaft 23. Further, a screw pin 24 is installed on the lower surface of the ratchet ring 23, and one end of a spring 25, which is hung on a fixed part (not shown) of the main body 11, is screwed into the screw pin 24.
Although the pin 24 exerts a clockwise rotational force on the cam 22 and the ratchet N23 mentioned above, in the initial state, the pin 24 is attached to the main body 11 as a stopper. It comes into contact with the pin 26 and is thereby regulated to the state shown in the figure.
CI+);゛)11- This is a locking pawl that mainly constitutes the cam positioning means in the cam driving means, that is, the radial positioning means in the head moving means, and its tip pawl. 28a meshes with the ratchet ridge 23a on the outer periphery of the ratchet wheel 23 on the front plate. 30 is a plunger forming IF and f of the cam pushing means in the moving means;
The flat plate part 31a provided at the tip of the movable piece 31
l, til'lil 33 is implanted. Reference numeral 32 denotes a spring that urges the movable piece 31 in the projecting direction. 33 is a UK p' (13 pawl) which also constitutes the cam driving means in the head moving means, and is rotatably supported on the aforementioned shaft 33, and is rotated by a spring 35. An additional force is applied in the direction, and the tip claw portion 3
3a is the outer periphery of the ratchet ring 23 (ratchet teeth 2).
It is possible to engage with 3g. 36 and 37 are the main body 11
The aforementioned driving pawl 34 is movable within the space defined by these pins. 32V
i is a spring that presses the movable piece 31 in the direction of the force. Here, if the plunger 30K)jjiTji is turned, the prefectural welding piece 31 is suctioned, and at this time, the drive claw 3411 causes the plunger wheel 23 and the cam 22 to rotate in one direction.
l 1. -1, and when the power is stopped, the locking claw 28
No, the Uzu-et ring 23 is the IV part of the ratchet.
Good 2-pu? Locked in phase. On the other hand, Ii'ilγ11 of the head carrier 13 described above
3 The above-mentioned cam 22 is attached to the shaft 19 implanted at the tip of Fl.
A cam follower 2o corresponding to 1i is pivotally supported, and the cam follower 20 is constantly pressed against the cam 22 by a first spring 18 between the head carrier 13 and a fixed part (not shown) of the main body 11. Accordingly, the outer periphery of the ratchet ring 23) 1142:3 a
(Cam 22's against Detchi) 7 Recording tracks on the magnetic sheet l, Big and Even! 1st
, -, it is possible to advance the head 12 every l track. Next, in order to return the head 12 to the initial position, 6 cases p, H, 1''
In connection with the loading or unloading operation of the magnetic sheet 1, the reset screw 38 is moved in the direction of the arrow in the figure by means not shown, and the tail end 28b of the locking pawl 28 and the 1ilKQ pawl 3 are moved.
4. (Ratchet the ratchet wheel 23 by rotating 34b clockwise and counterclockwise, respectively) g
323a. Its Iji;13,
The cam 22 and the ratchet wheel 23 are connected to the spring 25 (force VCJ), and the head carrier 13 is connected to the spring 1
The bales are returned to their initial positions shown in Figure 1 by the force of the mountain pass of 8. By the way, in order to increase the movement speed of the head carrier 13 and to make the mounting itself smaller, it is necessary to make the orientation of the head carrier l:3 with respect to the head guide rail member 16 gentle. . By doing this, the plunger 30. Or the 'Ij of the outfit F゛・-! ,jjl;
It is also possible to increase the power of j or reduce the capacity. Now, Figure 1-c ;:! ? , OJJ was carried out (in rare cases in 1/Y construction), if the spatula P/carrier 13 is subjected to vibration or impact in the moving direction of the spatula P/carrier 13 while the device is being transported, the spatula P/carrier 13 may be damaged by the guide rail member 16. As a result, the cam follower 2o and the cam 22 are exposed to the position, and the cam surface of the cam 22 or the contact surface of the cam flow cutting lower 2o is deformed, and the cam lift amount changes. , the track deviation of the head 12 may occur, or if the magnetic sheet 1 is loaded, the VC may cause an impact friction between the magnetic sheet 1 and the head 12 (the magnetic surface of the magnetic sheet 1 or the head I2). Accidents such as breakage of the tip surface are likely to occur.Alternatively, shock vibrations may also cause problems such as the head adjustment mechanism (not shown in the figure) which is attached to the head carrier 13 and generates heat. It becomes easier to do. Regarding the first embodiment of the present invention (Fig. 2 and tjS3); Fig. 2 and Fig. 3 show, for example, one implementation in which the duds J are applied to the recording/reproducing apparatus described in Fig. 1. As in the example, the first
The configuration differs from the one shown in the figure! It is a plan view showing the main parts of the Roku IIJ cattle equipment, and in the figure, parts with the same symbols as luJ in Figure 1 are the same as those in Figure 1.
) indicates the same item. 14 VC, a head movement prevention lever Δ-52 and a release lever 55, which are examples of head movement amount means, are rotatably mounted on a shaft 51 provided in the main body 11. A lock 54 is hung between these two levers 52 and 55, and a locking force is applied to each lever in the opposite direction with respect to the shaft 51. A blocking pin 53 is implanted at the tip of the blocking lever 52 and is capable of contacting the arm lj 13 a of the head carrier 13 in the direction Vζζ to press the cam φ follower 2o against the cam 22. ,or,
')'F of the release lever 55: (d blocking lever 5
・For 2, the blocking bit 153 is the head carrier 13
The engagement pin 15 that can be used by one person in the direction away from the arm 13a of the
6 has been planted. In this case, when the head carrier is in the stopped state as shown in FIG.
The first click of $ 57 a K is rotated clockwise until it is engaged and held. In this state, the engagement bottle 56 is retracted from the stop lever 52, so The body blocking lever 52i1 is rotated clockwise by the force of the spring 54 [2], and the blocking pin 53 presses the carrier 13 upward through the arm portion 13a with the force of the spring 54. and the cam 22 [
It also becomes tahi. Here, the force applied by the spring 54 is applied to the vibration force expected to be applied to the head gear rear 13,
By making the force larger than the "ji?-force", it is possible to suppress the vibration of the head carrier 13 as described above.Next, as shown in FIG. In connection with the operation of
5b is the second click groove 5 of the click stopper 57
When 7bK is engaged and rotated counterclockwise until it is held, at this time, the VA1 stop lever 52 is pushed by the engagement pin 56 and rotated counterclockwise in a te-like manner, thereby preventing this. 153 against the arm portion 13a is released, and the head carrier 13 becomes movable. At this time, the lff1-1 stopper pin 53 is in the retracted position th1. Needless to say, the head carrier 13 is moved further away from the movement position IN of the first eye 3a, which corresponds to the maximum movement position of the head carrier 13 indicated by 13a in the figure, to a position 7 degrees. . Further, by adopting such a top configuration, it is possible to weaken the spring 18 that presses the cam follower 20 by cutting it against the cam 22 as much as possible, and the suction force required by the plunger 30 can also be reduced. Regarding the second embodiment of the present invention (Figures 4 to 6); Figure 4 is a perspective view of the truss part of the second embodiment of the present invention, and the main part is shown in Figure 1. It is the same as , and here I will explain 1. Therefore, in the 0°14 diagram showing only the necessary parts, part of the head carrier 13 is KF,,'% C,','N
) material 61 is provided. Furthermore, - such friction part '4A
61, the surface V of the head carrier 13 itself
C. Appropriate treatment may be applied to make the surface rough. Other examples of head movement blocking means-r'AZ) Brake lever 62
is provided on the main body 11 and is rotatably supported by the ζ axis 1; A braking friction portion 4't 62 :I that engages with the f< member 61 is provided. The brake lever 62 iit":ne(:
4 It is energized counterclockwise from j'r7, and this 1III? ! !・Usually, the friction member 62a engages with the friction member 61 on the head/carrier 13 side due to the force, causing 1 = "i= between one stroker, and the heel/carrier 13
By not braking 2), its movement is prevented. 67tj: Plunger, 66 is its movable piece. The tip part Vcij of the movable piece 66 and the shaft 65 are implanted, and the tip part fq
lr-, l:; engaged with hole 62b. When the brake lever 62 is rotated clockwise from the 2. J. trap, the friction members 61 and 6 are energized.
■111 Excitation is released due to the pressure contact between 2a and the head
Figure 5 + d shows the electric circuit of this second embodiment. Here, this second embodiment records video signals along 1nj circular tracks on the magnetic sheet 1, and
This is an example of a device that reproduces this. In particular, in terms of recording, this example shows a case where one field's worth of video signal is recorded on one round of tracks. In the figure, 71 is the video signal input terminal, 72 is the OIL
A recording circuit 73 is a recording start circuit provided between the recording circuit 72 and the magnetic head 12. Further, 74 is a reproducing circuit, and 75 is a head 12 and the reproducing circuit 7.
A reproduction gate circuit 8 is provided with a VC between it and 4, and 76 is an output terminal for a video signal. To explain the recording system control section here, 77Vim
l, 0 switch closed at 5 o'clock, single recording at 79 (
A mode selection switch 80 is used to select between S) and continuous recording (C), and a mode selection switch 80 outputs a pulse that remains high for a period slightly longer than the time corresponding to one field at a predetermined period (for example, 10 to 152 ζ seconds). When the selection switch 79 is on the C side in the interval timer that outputs It is maintained so that it can be operated by /1 configuration. When the D input of 81 and 1 receives the signal of the S terminal of switch 79 or the output of the input terminal timer, the VB period of 1g is received at t.
'1 A D-7 flip-flop of the fall period type, which is configured so that the trigger is triggered by the fall of the V-period signal from the separation circuit 77; receiving the Q output of the same 1, < y i−n
, the fall of the end signal from the q-minute 1st separation circuit 77, VcJ, is 1.
A falling period type D-Noritub designed to be triggered twice.
The flop 83 is an AND circuit that receives the Q output of the flip flop 081 and the Q output of the Noritub flop 82, and its output is applied to the recording gate circuit 73 as a recording state control signal. , and the date circuit 7
Third, the dart control signal from the amplifier circuit 83 selectively turns off for one field period, and during this period, a video signal is supplied from the recording circuit 72 to the head 12 and recorded on each recording track of the unloading sheet 1. It will end up being dropped. still,
1 is driven by the rotary drive shaft 17 so as to make one rotation in one field period CD.Next, to explain the fti control section of the reproduction system, the 84V
: :F')'Regeneration switch closed during AF, 85
is a regeneration start control circuit which outputs a regeneration r-t control signal i which becomes high when the switch 84 is about to be closed again in response to the opening of the switch °84, K8-1: While the control signal is high, the 1-digit dart circuit 75 is turned on, thereby supplying the recording signal of the magnetic 7-tl-F pinked up by the head 12 to the reproducing circuit 74. Here, 1]11 is output to the output terminal 76. Next ((To explain the plunger control section, 586 (1
L from the AND circuit 83 for the above-mentioned record r-) control tII
Recording number f: +1. A one-fist shot circuit consisting of a control signal and an OR circuit that receives the output of an AND circuit 96 (described later), and a mono/multiple vibrator that outputs a single pulse in response to the fall of the output of the 87 OR circuits 86. , 88 is a cylinder driver 11) which energizes the brake lever control plunger 67 in response to the output pulse of the one-fist shot circuit 87. Further, 89 is a delay circuit for delaying the output of the OR circuit 86 for a predetermined time, and 90
is a one-shot circuit b'J'+91 consisting of a mono-multiple vibrator which outputs a single pulse in response to the fall of the output of the delay circuit 89;
This is a plunger driving circuit for responding to the output Vc of the head feeding plunger 30. Further, a head movement switch 93 is operated to move the head in the 92-digit playback mode, and 11j and I are used to select between single-shot 4-tone playback (S) and 5-inch continuous playback (C).
J-mode F, 4+? switch, 94 is the switch 9
3's S terminal side Vr: is connected and the switch 7 93
When the switch 92 is closed while the switch 92 is in the single ffei 47j output side, in response to this, a single pulse is output every time the switch 92 is closed.
A one-shot circuit 95 consisting of a bi-break is connected to the C terminal 111 of the switch 93, and the switch 92 is closed when the switch 93 is on the C side, that is, in continuous playback 5ill. An interval timer 96 outputs pulses at a predetermined period (for example, about 0.5 to 1 Hz) as long as the one-shot circuit 94 is closed. Regeneration dart control 48 from control circuit 85
This is an AND circuit which receives the signal, and its output is applied to the Hoar circuit 86 mentioned above. Next, regarding the operation of the above-mentioned device, see Figure 6 (A).
This will be explained with reference to the timing charts of (B) and (B). First, the operation during recording will be explained with reference to FIG. 6 (, A). During recording, the video signal input to the input terminal 71+i; As shown in part (a) of A), the v-phase signal is separated, and this is passed through flip-flops 81 and 82.
A rigid force is applied to each trigger input. In order to perform single-shot recording in this state, switch 79 is pressed as shown in FIG. 6(A)(b).
When the switch 78 is set to S side and the switch 78 is closed as shown in FIG. - Q output of flop 81 becomes high. In this state, the Q output of the flip-flop 82 is high as shown in (f) of FIG. 6(A), so that ('A) of FIG.
As shown in g), the output of the AND circuit 83 - that is, the record r
-) The control signal becomes high, which causes the output of the recording circuit 72 to be applied to the head 12, and as shown in the figure, the Q output of the flip-flop 82 becomes low, thereby causing the output of the AND circuit 83 to become active. The recording operation will be stopped. On the other hand, when the output of the AND circuit 83 changes from high to low, in response to this, the one-shot circuit 87Fi outputs a single pulse as shown at (+1) in FIG. 881j While this pulse is high, the fourth
Power is applied to the planter 67 shown in the figure. When the plant gear 67 is energized, the movable piece 66 is attracted, so the brake lever 6
The friction member 62a is rotated clockwise in FIG. 4 against the 2'it spring 64 to release the friction member 62a from the friction member 61 of the head carrier 13. On the other hand, at this time, the delay circuit 89 is
The output of the AND circuit 83 is delayed by a predetermined time Δt as shown in FIG. From this pulse K, the driving tib circuit 91 energizes the planter 30 of FIG. The feed for the track/pinch is now performed. Here, the width of each output pulse of the one-shot circuits 87 and 90 and the delay time Δt of the delay circuit 89 are as follows from (g) to (j) in FIG. 6(A).
The output pulse of the one-shot circuit 90 is set to be within the width of the output pulse of the one-shot circuit 87. Therefore, in this case, after the end of recording, the engagement between the friction member 62a and the old office pier 61 is released before the start of the head f-h, and then, after the end of head feeding, In the single-shot recording mode, the above operation is repeated every time the switch 78i is closed, but on the other hand, when continuous recording is performed, Switch to 79%?”,,6L!”1(
On the C side as shown in (b) of A)

[Switch 78 is closed as shown by (C) & in Fig. 6 (A)]
In this case, as shown in FIG. 6(A)(d), as long as the switch 78 is closed, the interval timer 80 is
Just over one field period from 'l? A pulse with j'l is output at a predetermined period.
1, the operation described above is repeated every time a pulse is output from the interval timer 80, and eventually the output pulse from the interval timer 80 Continuous recording will be performed at a predetermined period determined by Jt, + Jllj. Figure 6 (
By closing the switch 84 as shown in (a) of B), the output of the 1st node output control circuit 85, that is, the output of the output node πi control circuit 85 becomes as shown in FIG. 6 (13). As shown in (b), the level becomes high, thereby turning on the reproduction dirt circuit 75 and sending the output of the head 12 to the reproduction circuit 74. ? j is given, and signal reproduction is performed. Regarding the head feeding at this time, first of all, in order to perform the jii 1] J cow, switch 93 to the head shown in FIG. 6 (B) (C)! II, and if it is shown in Figure 6 (
41 each time the trap switch 92 is closed as shown in (d) of B).
< From the VC one-shot circuit 94 to ( of FIG. 6(B))
A single pulse is output to the four lines shown in e), and
is applied to the OR circuit 86 through the AND circuit 96. Then, in response to the fall of the output of the AND circuit 96 at this time, the one-shot circuit 87 outputs P, -V 6 ki
As shown in (g) of (B), a single pulse is output, and as a result, the drive 1/1 path 88 continues while this pulse is high.
The plunger 67 in FIG. 4 is energized. When the plunger 67 is energized, the above-mentioned "1-movement piece 66 is suctioned, so the restraining lever 6217+' k,
The friction member 62a is rotated clockwise in FIG. 4 against the force 64 to disengage the friction member 61 on the fan 1 head carrier 13 side. On the other hand, at this time, the delay circuit 89 of the sixth [BI(B) (,
As shown in h), the output of the AND circuit 96 is
Then, the one-shot circuit 9-0 is delayed by (i) K in FIG. 6(B).
As shown in FIG.
Therefore, the head 12 is moved by one track pitch by the operation described with reference to FIG. 1, as described above. In the single playback mode, the above operation is repeated every time the switch 92 is opened, but on the other hand, in order to perform continuous playback, the switch 93 is turned on (3rd to 4th (B) (c)
With the KC side 11C closed as shown, turn the switch 92 on in Fig. 6 (
When closed as shown in (d) of B), rr is as shown in Fig. 6 (
As shown in (f) of B), as long as the switch 92 is closed, pulses are output from the interval timer 95 at a predetermined period and are applied to the AND circuit 9G.
The above-mentioned operation is repeated if a pulse is output from the interval timer 95 (481), and in the end, continuous reproduction is performed at a predetermined period that is constant with the period of the output pulse from the interval timer 95. Although the second embodiment of the present invention is as described above, the bar 62
The force applied to the head carrier 13 is erased by 5'+Y, and recording or reproduction can immediately be performed in a stable state. Of course, in the continuous mode, the brake lever 62 may be maintained in an inoperative state, but for that purpose, the one-shot circuit 87 and H shown in FIG.
A V-OR circuit is arranged between the 1'FfjJ circuit 88,
In addition to the output of the one-shot circuit 87,
When the switch 79 is set to the ((side) side, the closing of the switch 78 causes a high level signal of j' (Q I-), and the same trap switch g: (i, when the switch 9 is set to the -+ side)
For the closure of 2. Continuous mode switching is possible by giving high level signals such as pj+r and jl. At switch 78;
As long as 92 is closed, the number of plan feeds can be increased. Regarding the third embodiment of the present invention (FX 7 t>'lμ
Figure 7 is a perspective view of the head moving mechanism section at 471 of the third embodiment of the present invention. 211/This configuration of this embodiment is similar to that shown in FIG.
When q<+, the profits with the same sign are the 11th Si1.
The same case parts as in Fig. 1 are omitted. In FIG. 7, 101 is a claw drive lever, and at the tip of the lever 101 there is a shaft 102 (length t+'L). Claw 34
is rotatably supported. Further, the lever 101 is formed with an elongated portion 101b extending along the moving direction of the movable piece 31' of the plunger 30.
By engaging the fixing pin 103 on the main body 11 side, the lever 101 can be moved from side to side in the figure, and the lever 101 can be moved between the pin 101c and the fixed pin 104 on the main body 11 side. ) The biased spring 105 is biased in the direction of the arrow in the figure, that is, in the direction in which the drive claw 34 comes into contact with the bottle 36 (FIG. 1). A bottle 106 is implanted at the tip of the movable piece 31' of the lid/jar 30, and the aforementioned drive lever 101 is provided with an arm portion 101a that can engage with the bottle 106. Another example of the head movement blocking means, a bell-shaped blocking lever 109, costs $11,110.
It is rotatable around the center of
2 is provided. Further, the other end 109a can still be contacted by the tip 108a of the relay lever 108 of the front j-ho (0113), which is explained in FIG. A set guarantee? 'jB
The aforementioned engaging piece 112 can be engaged with the engaging portion 113. FIG. 8 shows an enlarged view of the engaging portion 113 and the engaging piece 112, and while they are engaged, the head carrier 13
It is formed so as to prevent movement in the feeding direction. In such a configuration, the engagement piece 112 of the blocking lever 109 is normally moved by the spring IIIVC to the engagement portion 113 on the head carrier 13 side [7], so that the head carrier 13 is not exposed to the outside. The vibrational heartbeat is still 111 even in response to the valence vibration. When power is applied to the pusher 8/jar 30 in order to feed the head in this state, the movable piece 31' is pulled by B4, so that the lever 108 is first relayed to the bin 106 and rotates counterclockwise. 2. 9iM beyond that? X'l! + -08
8, the blocking lever 109 is rotated clockwise against the spring 111. Therefore, the engagement between the engagement piece 112 of the blocking lever 109 and the engagement portion 113 on the head carrier 13 side is released, and the head carrier 13 becomes movable. When the movable piece 31' is further suctioned, the bottle 106 installed on the movable piece 31' comes into contact with the arm 101a of the claw S moving lever 101, and the lever 101 cover spring 1.05 VC resists. As a result, the ratchet wheel 23 is moved by the drive pawl 34 as explained in FIG. 1.Next, the plunger If the power supply to 30 is stopped, the state shown in FIG. 7 will be restored, and the movement of the head carrier 13 will be prevented.As can be understood from FIG.
a and the pawl 113a of the engaging portion 113 are connected to the head carrier 13 as in the case of the first embodiment described in FIG. 2.3.
The cam follower 20 is formed to have a Vζ shape so as to prevent the cam 22 from moving in the direction of heating. Therefore, in these first and third embodiments, the power arm 22
If the cam is an inner cam instead of an outer cam, it is configured to prevent the head fist carrier 13 from moving in the opposite direction. In the above embodiments, the present invention was applied to an apparatus using a rotating magnetic sheet as a recording medium, as shown in FIG. Or rJ, Shizuka 111. The present invention also applies to devices that use a capacitive type [2]. In addition, as an example, the present invention is applied to a device in which head feeding is performed by a rotating cam whose rotational phase is controlled by a rotating ratchet mechanism (2) (although two cases are shown,
In this case, the head feeding cam may be of a single linear type. Furthermore, as an embodiment, head feeding is carried out by a cam whose phase is controlled by a ratchet t:"- mechanism (c[
When the present invention is applied to a type of device as shown in 31-7 (However, the present invention is also fully applicable to a type of device in which the head is fed by a feed screw rotated by a motor, for example, and In case, especially 457' for attached PI:
, (This refers to items that are effective in preventing and obtaining damage to the feed screw part and its retaining part that may be caused by vibrations. According to the present invention, the recording or reproducing device 1 records and/or reproduces information by moving the recording or recording head to a different position on the recording medium.
``, ``By closing, vibrations and shocks are applied to the direction of the mold, and vibration of the head due to ``A'' and ``A'' is prevented, resulting in damage to the head 3 or Vi1X that controls the positioning of the head.
This is particularly useful for recording or reproducing devices, since it is possible to prevent overlapping, such as 'InQ'.

[Brief explanation of the drawing]

, is a perspective view showing the ear configuration of the main parts related to lr ('i'lN VC Motoki brother, an example of a recording device or playback device that uses a sheet). FIG. 3 shows a specific example of the case where the present invention is applied to a 1st display device, and 7 shows a specific example of the case where the present invention is applied to a 1st display device. [1 different Ooto゛hirop, C) A plan view showing 4j'・Nari, the second is 1
is head off + l! I'l-a,i,'! , :
, J I ", FIG. 3 shows the blocking release state. FIG. 4 shows the second implementation v11^1 of the present invention.
! Sen's J' when i and i are applied to the first illustrated device,
(,,1,: ic, “Q・, especially the configuration shown in the first diagram is a phase reactor.
Figure 5 shows the configuration of the electric circuit.
"Tsuku diagram, Figure 6 (A) and U (B) Ir,
t R' [i”, ah ('K IQ (')2n5
The input and output signals of the main parts of the illustrated circuit are recorded at 1.4 m, 1 m., 1.5 m, and (H-) show the time of extension. FIG. 7 shows an example of addition of the main body 3 of the present invention.
Ij'l・Further other tools (4,14+1C) when applied to the first illustrated device, especially different from the first illustrated configuration−
Fig. 8 is a perspective view showing the part σ, 41'1, and Fig. 8 is a diagonal view of the 7th part shown in r, 1...record 'II K, 12-i self-record nu (r, l re<1t, fil hair 1:', 13・movable member, 1
8...Splash, 20...Kaa,...) Hot Roa, 22...
Cam, 23... Ratchet part, 28... Engagement claw,
34... Drive claw, 30...-7' cage/jar for head feed 11, 52, 53; 62-67; 109-] I 3
...Components of blocking means, 55, 56; 106~
108...Wei 1 Seisho element of blocking release means.

Claims (5)

[Claims] (1) A recording or reproducing head, head moving means including head positioning means for moving the head to different positions on the recording island, and a stop for preventing movement of the head. A recording or reproducing device comprising means. (2) The recording or reproducing device according to claim (1), wherein the blocking means can be operated from outside the device. (3) The recording or reproducing apparatus according to claim (1), wherein the blocking means releases the blocking of the head movement in relation to the head moving operation by the head moving means. (4) The head moving means includes a movable member supporting the head, a cam for moving the movable member, and a cam positioning means as the head positioning means for driving the cam. and,
The blocking means acts on the movable part.
'r' A recording or reproducing device according to any one of claims (1) to (3). (5) The cam driving means operates the ratchet member connected to the cam and the ratchet part. A driving claw for moving the cam and a means for determining the cam position V1,
The recording or reproducing layer according to claim (4), further comprising a locking pawl for locking the ratchet member at each drive position.