JPS61258362A - Tape travel controlling device for reciprocating player - Google Patents

Abstract

PURPOSE:To secure the interchangeability of tracks between a reverse play mode and a single-way play mode by forming a recording track at a fixed position apart from both end faces of a tape in its width direction with no reverse drive of the tape despite an error produced with the tape width. CONSTITUTION:Reference surfaces 28 and 29 are provided for contact with a tape 120 at lower and upper parts in the width direction of the tape 120. The spaces between the surfaces 28 and 29 and reference guides 26 and 27 are set approximately equal to the maximum allowable value W<+alpha> of the tape width. A pressed surface 32 above movable pressure members 30 and 31 serving as a tape shift means presses the upper end face in the width direction of the tape 120 to secure a contact between the lower end surface of the tape 120 and a reference surface 28 under the guides 26 and 27. While a pressed surface 33 under the members 30 and 31 pressed the lower end face of the tape 120 to secure a contact between a reference surface 29 over the guides 26 and 27 and the upper end face of the tape 120. A switch control means 38 for members 30 and 31 contains an actuator 39 attached to a rotary shaft 36 and an operating member which rotates the actuator 39.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a tape running regulating device for a reciprocating performance device.
In particular, when recording and playing by switching only the performance direction without reversing sides A and B of the tape, accurately adjust the track position from each end surface in the width direction of the tape, regardless of variations in tape width. A tape running regulating device for a reciprocating performance device is suitable for this purpose.

B. Summary of the Invention The present invention fixes reference guides on the entry and exit sides of the recording/reproducing head in the tape running direction, and brings both ends of the tape in the width direction into contact with the upper and lower parts of each reference guide. In the tape running regulating device, the distance between the upper and lower reference planes of each of the reference guides is formed to be approximately equal to the maximum allowable value of the tape width dimension; A moving means for moving the tape in the width direction is provided near the tape, and on the outward journey of the tape, the end face of the tape in the width direction is brought into contact with one of the reference surfaces at the top and bottom of each reference guide, and on the return journey, the tape is The present invention is characterized in that it is provided with a switching control means for controlling the moving means (separately described) so that the end surface in the width direction of the tape is brought into contact with the other of the lower reference surfaces.

C. Prior Art FIG. 4 shows one example of the prior art of a reverse analog tape recorder.

This conventional technology includes a recording/reproducing head (hereinafter referred to as "head") 1, two head chips 2 and 3 provided on this head 1, an electric circuit 4 for switching head chips, and a head 1. Tape guides 5a, 5b provided on both sides of
and 6a.

6b. The cutting head chig 2゜3 is
They are provided in advance at positions SR and S at equal distances from the center C of the tape width, corresponding to the recording tracks for the forward and backward paths of the tape 120.

In the prior art shown in FIG. 4, the head chips 2 and 3 are switched between the forward path N and the backward path R of the tape 120 using the electric circuit 4.

Next, in FIG. 2(a), (bl indicates another column of the prior art).

This prior art includes a head 7, a head chip 8 with a diameter of 1'aU provided thereon, and an electric circuit 9 for operating the head rotation method. The electric circuit 9 causes the head 7 to
is rotated 180 degrees around the center of rotation O, and the head chips 8 are used by replacing them at positions equidistant from the center of the tape width in the forward path KN and the backward path R.

In conventional analog tape recorders, reverse recording and playback can be put to practical use without any problems by using the techniques shown in the above-mentioned ratio diagrams, figures (a) and (bJ).

-In digital recording, since island density recording is required, moxibustion channel recording using a multi-channel head is being performed, and the recording track pitch is narrow (
Therefore, in order to prevent tape waving, how to properly run the tape has become an important issue.

By the way, as shown in FIGS. 4 and 3 (al and bl), the ends of the tape 120 in the width direction are brought into contact with the set of tape guides 5a and 5b and the set of tape guides 6a and 6b to regulate the tape running. The technique used is tape guide 5a.

In order to prevent damage to the tape 120, the distance between the tape guides 5b and the distance between the tape guides 6a and 6b is set to the maximum value of the tape width error during manufacturing. Therefore, the influence of track deviation lit + s and @tag error during tape running can be corrected! & It becomes K to receive it.

Next, Figures (at, (b), and (cl) show the error in tape width and the relationship between the tape guide and the tape guide.

This wJ24 diagram (aJ, (bL (cJ), when the tape difference W±α is 3.80±0.010, the distance between the tape guides 5a and 5b, and the distance between the tape guides 5a and 5b, , the spacing between 6b is 3.81111 as W
It is made at 1-α. Therefore, as the minimum tape width W, 3
．． When the tape 120 of No. 29131 is run, a gap of 0.021 is created between the tape guide 5 as 5 b ; 6 as 6 b and the tape 120 as shown in FIG. In the worst case, the amount of track deviation is as high as 0.04.

This amount of track deviation corresponds to the track width of 6μ in stable density recording.
When the number of digital signals reaches m, problems arise such as the inability to reproduce digital signals. As a means to prevent this, a technique has recently been proposed in which, in the case of one-way performance, the tape is run using one end of the tape as a reference.

Next, Figures 1 to 4 show various conventional techniques in which one end of the tape in the width direction is used as a reference.

In the prior art shown in the figure δ, reference guides 13 are provided on both sides of a head 10 having a head chin 111 and support the lower end surface of the tape 120, and this reference kite 1.
A tape pressing guide 14.15 is provided on the exit/input side of the tape X20 as the outside of the tape 120 and contacts and presses the upper end surface of the tape 120. The tape suppression guides 14 and 15 are set at a value equal to or slightly smaller than the minimum value of the tape width error between the reference guide pressure and the reference guide pressure 13. That is, the above-mentioned figure 824(a).

In the case of the tape 120 shown in (b) and (c), the distance between the reference guide 12° 13 and the tape pressing guides 14, 15 is set to 3.29 mm or 3.27 flIj1.

In the prior art shown in FIG. 5, the Qi 7120
The tape 120 is applied to the head 10 by applying a predetermined tension to the tape 120.
Press and run the tape suppression guide 14.15
The upper end surface of the tape 120 is pressed to bring the lower end surface of the tape 120 into contact with the reference guide 12.13. As a result, no matter what tape width error the tape 120 has,
Since the tape 120 always runs with its lower end surface in contact with the reference guides 12, 13, a recording track can be created by the head IOK at a fixed position from the lower end surface of the tape 120, and reproduction can be performed.

Next, Figure 3 and! The prior art shown in FIG. 27 has inclined guides 16, 17 outside the reference guides ν, 13 provided on both sides of the head IO. The inclined guides 16 and 17 are disposed on the back surface of the tape 120 and are provided with a downward slope from the upper end surface to the lower end surface of the tape 120.

In the prior art shown in FIG. 1 and FIG. Tape 12 due to tension and couple of 120
0 itself loses the force to move downward, and the tape 120 is always
Since the tape runs with its lower end touching the reference guides 12 and 13, even if there is an error in the tape width, a recording track can be created in one direction at a fixed position from the lower end of the tape 120. And it becomes possible to play.

Next, Figure 28 and Figure 2! In the conventional technique shown in Fig. j, a reference guy)'19.20 is installed at M* of the head IO. Each of the reference guides 19, 20 has a flat reference surface 4 formed at its lower part, and an inclined surface ρ which slopes downwardly toward the upper part. The reference plane M and the base of the inclined plane ρ are spaced apart from each other by a distance larger than one-half of the tape width and slightly smaller than the minimum value of the tape width error.

In the prior art shown in Figures A and 4,
Tape 120 by the slope ρ of each reference guide 19.20
The lower end surface of the tape 120 is brought into contact with the reference gravity by pushing the upper part of the tape 120, and the tape 120 is run along the reference gravity of the reference guide 19.20. Therefore, even in the prior art shown in FIGS. 3 and 4, even if the tape 120 has an error in tape width, the distance *K from the lower end surface of the tape 120 is constant.

It is possible to create recording tracks in one direction, and also to perform playback.

By the way, in the conventional technology shown in FIGS. 5 to 4, the tracing is determined in the case of one-way performance, but reverse recording and
During playback, the following problem occurs.

Figure i30 (al s (b) e (cl) indicates tracks recorded with the A(T) and B sides reversed on tapes with different tape widths using the conventional technology shown in Figures 2 to M29 above. , !31 (alt (b), (cl is the same) shows tracks recorded on tapes with different tape widths without inverting the 4th side and the B side by the conventional technique shown in FIGS. 5 to 9.

As shown in FIG. Even if the tape 120 has an error in width, the track remains at a constant position 1tK11C from the lower end surface and the upper end surface of the chi 1120, regardless of the variation in tape width.

Accurately recorded.

However, as can be seen from FIGS. 31(al, bl, (d), during normal reverse operation, in which only the performance direction is switched and recorded without reversing the fourth and B side of the tape 120, the track is distorted due to the difference in tape width. The information is recorded at different positions 11 from the lower end surface and the upper end surface of the tape 120.

This means that the track positions are different when played in reverse and when played in one direction, and there is no compatibility, which is a drawback of the prior art.

In addition, Dl of the third blade figure (at * (ble (c)),
D2, and (-) D3 in FIG.
* 1 in # in (c) and 1 in Figure 31. K
2. 3 indicates the distance between the end surface of the tape and the track position.

D. Problems to be Solved by the Invention The purpose of the present invention is to solve the drawbacks of the prior art described above, and to make it possible to make tracks compatible between reverse play and unidirectional play. An object of the present invention is to provide a tape running regulating device for a reciprocating performance device.

E I'l! j Means for solving the problem The present invention has the following features:
A reference guide is fixed to each of the entry and exit sides of the recording/playback head in the tape running direction, and a reference surface that regulates tape running by bringing both ends of the tape in the width direction into contact with the top and bottom of each reference guide. In the tape running regulating device, the distance between the upper and lower reference surfaces of each of the reference guides is formed to be approximately equal to the maximum allowable tape width dimension, and a chi 1 is placed near each of the reference guides with the width of the guide. A moving means for moving the tape in the direction is brought into contact with one of the upper and lower reference surfaces of each reference guide on the outward path of tape travel, and the tape is brought into contact with the other of the upper and lower reference surfaces on the return path. The end faces in the width direction should be in contact with each other (switching control means for switching and controlling the moving means).

F Function In the present invention, the tape is moved by the tape moving means on the outward path of tape running, with the lower end surface of the tape in the width direction being brought into contact with the lower reference surface of the reference guide. Thereby, a recording track can be created at a fixed position from the bottom surface of the tape.

Further, without reversing the fourth and third sides of the tape, the operating direction of the tape moving means is switched by the switching control means of the tape moving means during the return journey of the tape. Then, the moving means moves the tape so that the upper end surface in the width direction of the tape comes into contact with the upper reference surface of the reference guide.

As a result, recording tracks can be created at fixed positions from the top surface of the tape.

Therefore, even if the tape widths are different, recording tracks can always be created at positions equidistant from the bottom and top sides of the tape in the width direction, making it possible to create recording tracks that are equally spaced from the bottom and top sides of the tape in the tape width direction. It becomes possible to have compatibility.

G Example Hereinafter, embodiments of the present invention will be explained with reference to the drawings.

FIG. 1 is a perspective view of the first embodiment of the present invention, FIG. 2 is a side view of the tape moving means of the first embodiment, and FIG.
l*(bl*(e)) is an explanatory diagram of the operation of this first embodiment.

The first practical tape running regulating device shown in these figures includes a head, reference guides 27 arranged on the entrance side and the exit side of the head in the tape running direction,
A movable suppressing member (equipment) 31 as a means for moving the tape disposed outside each reference guide %, 27, and a support stand 34° of each movable suppressing member (equipment) ), and 31 switching control means.

As shown in FIG.

Guess, 25 are provided. Said head chips.

b is connected to an electric circuit (not shown) for switching operation;
It is designed so that it can be switched to operate one at a time on the outward and return paths of tape running.

As shown in FIG.
Reference surfaces A and 4 are provided for contact. Each of the reference guides 26 and 27 has a reference plane A.

9, the maximum allowable tape width W+aK is approximately equal. Furthermore, the reference surfaces 28 and 29 of one of the reference guides are formed as convex arcuate surfaces, and the reference surfaces 28 and 29 of the reference guide valley are formed as substantially flat surfaces. Further, the reference guides 26 and 27 are fixed to a fixed member such as a chassis.

A movable suppressing member (9) as a means for moving the tape.

31, as shown in FIG. 1 and FIG.
Pressing surfaces 32 of the tape are placed on the upper and lower sides of the tape 20 in the width direction.
．． 33 are provided. For each of the movable pressing members 30 and 31, the distance J between the pressing surface blades 33 is tape width dimension/r-,
Komihiro J"4-4- AN Thl+αry ep+ +
I r > w+αI/r J is ordered. Also,
The tape suppression surfaces 32 and 33 provided on one movable suppression member (9) are formed into substantially flat surfaces, and the tape suppression surfaces 32 and 33 provided on the other movable suppression member 31! , 33 are formed into convex arcuate surfaces. The movable suppressing members 30, 31 are swingably supported on the support base 35 through a common rotation. Then, the upper pressing blade of the movable pressing member blade 31 presses the upper end surface of the tape 120 in the width direction to bring the lower end surface of the tape 120 into contact with the lower reference plane of the reference guide 27, and the movable pressing member blade, The lower pressing surface of 31 pushes the lower end surface of the tape 120 to bring the upper end surface of the tape 120 into contact with the reference guide and the upper reference leveler 27.

The support base u, 35 of the movable suppressing member 30.31 is fixed to a fixed member such as a chassis. Each support stand 34, 3
5, as shown in FIG. 2, adjustment screws 37 and 38 are provided at the upper and lower portions as adjustment means for finely adjusting the swing range of the movable suppressing member 30, 31.

Switching control means for the movable suppressing member 30.31 A, an actuator attached to the rotary &1I 536, and an operating member for rotating the actuator in directions (A) and (B) in FIG. (not shown).

The tape running regulating device of the first embodiment is operated and functions as follows.

First, when creating a recording track at a fixed position on the Q lower end side as one end of the A side of the tape 120, the head chips are set to be activated and the tape 120 is run along the outward path.

Then, the actuator 39 is rotated in the direction (A) of FIG. 1 by the operating member of the switching control means of the movable and suppressing members 30 and 31. From this K, the movable suppressing member (
9), 31 swing in the same direction as the contraction Vc.

As the movable pressing member blades 31 swing in the direction B), the upper end surface of the tape 120 in the width direction is pressed by the upper pressing surface blades of the movable pressing member blades 31 as shown in FIG. →
When pushed in the direction, the lower end surface of the Qi 11200 contacts the reference guide and the lower reference surface of the 27, and the tape 120
travels according to the lower reference plane of the reference guide 3.27, and as shown in FIG.
Recording tracks 121 are created at locations 1 and 4.

Next, without reversing the A side of the tape 120, tape 1
When creating a recording track at a fixed position on the upper end side as the other end side of the tape 120, the head chip 25 is switched to be activated and the tape 120 is run along the return path.

Further, the actuator silver is rotated in the (b) direction in FIG. 1 by the operating member of the movable pressing member blade and the switching control means 31.

As a result, the movable pressing member I, 31
swing together in the same (b) direction.

When the movable pressing member blade 31 swings in the (b) direction,
Due to the lower pressing surface of each movable pressing member blade 31, the lower end surface in the width direction of the tape 120 is pushed in the direction shown in FIG. The recording track 122 is created by the head chip 5 at a certain distance 1llIK4 from the upper end surface of the tape 120 in Al1K.

Therefore, according to this first embodiment, the A side of the tape 120 is controlled by the cooperation of the reference guide 27, the movable pressing member blade 31, and their switching control means.

As shown in FIG. 3(c) without inverting the B side and regardless of the variation in tape width, the tape 1200 is placed at a fixed position 1!IK4 from the lower end in the width direction and 4 at a fixed position from the upper end surface. and K, recording tracks 121 and 122 can be created accurately.

Further, it goes without saying that the fjliJl embodiment can also be applied to a type K in which the head is provided with a head chip on one side and the head is rotated 180 degrees around the center of the tape lt&.

Furthermore, during reproduction, the recording track 121 or 122K can be reproduced accurately due to the action between the reference guides 26, 27, the movable pressing member blade 31, and the switching control means thereof.

FIG. 4 is an i-plane view showing an embodiment in which the limiting portion of the swing range of the movable suppressing member is different from the first embodiment.

In the embodiment shown in FIG. 4, a movable suppressing member (material) is used.

A long arc-shaped object whose radius is centered around the center of the rotating shaft is formed on the active end side of 310, and a bottle 4] is thrown on the support stand 34,35. This bottle 4J is fitted into the long object 40, and the swinging range of the movable pressing member blade 31 is limited to the range where the bottle 4 comes into contact with both end surfaces of the long object.

The implementation shown in FIG. 4 has a simple structure;
This is effective when the movable pressing members 30, 31, the support bases 30, 35, etc. are fabricated with high precision and fine adjustments are not lost.

In addition, in this embodiment, between the movable suppressing members.

A bottle 41 may be provided at 31, and an elongated hole 40 may be formed at support base 35.

Next, FIG. 5 is a longitudinal sectional view showing another implementation of the switching control means for the movable suppressing member in the first embodiment.

In the embodiment shown in FIG. 5, there is a lever 42 which is rotatable with one rotation @ 36, a holding member I provided at the end of the force point of this lever 42, a grunger 46, and a grunger 46. Switch 47 and contact 4 to operate
8.49. The separately mentioned lever 42 includes a tension spring 43 and a pressure sardine spring 450 provided on the holding member 44.
The action holds the viscera in a neutral position in normal conditions. The plunger 46 rotates the lever 42 counterclockwise in FIG. 5 when the switch 47 is brought into contact with the contact 48 on the forward travel side, and rotates the lever 42 when the switch 47 is brought into contact with the contact 49 on the return travel side. The shaft is rotated clockwise in the same Figure 5.

Therefore, in the implementation shown in FIG.
By switching 7, the lever string is rotated counterclockwise or clockwise via the 1/jar 46, and this lever string rotates the rotation axis A in the (a) or (b) direction, and this rotation It is possible to swing the movable suppressing member (31) shown in FIGS. 1 and 2 in the (B) or (B) direction via the (A).

Next, FIG. 6 is a perspective view showing an embodiment of M2 of the present invention,
FIG. 7 is a longitudinal sectional view of the same.

The tape running regulating device of the second embodiment shown in FIGS. 6 and 7 differs from the first embodiment in a movable suppressing member as a tape moving means and a switching control means therefor. .

That is, the movable suppressing members 51 and 52 shown in these figures are fitted with a position-fixed nut 53 provided on a fixed member such as a chassis, and #iA fitted to this nut 53, and
With a screw rod with a grooved membrane that allows it to move downwards,
A drum group for tape suppression is provided at the upper end of this screw rod, and a dynamic arm is connected to the other end of the screw rod by a set screw 59.
A switching lever ω is provided as switching control means that commonly connects the drive arms of the movable suppressing members 51 and 52 from the connecting bin 61K.

The drum for suppressing the tape has 7 lunges 57 at the top and bottom, and the interval J between the 7 lunges 57 satisfies J≧W+a with respect to the maximum allowable tape width W+0.
is formed.

The switching lever mark constituting the switching control means of the movable pressing member 51, 52 is connected to a reciprocating drive source (not shown) via a rack and pinion mechanism (not shown) or the like. The six wings shown in the figure are configured to be movable in four directions.

In the tape running regulating device of the second implementation row,
When the switching lever ω is moved in the (E) direction or (H) direction shown in FIG. 4 and rotates clockwise or counterclockwise.

When the screw rods of the movable pressing members 51, 52 rotate counterclockwise or clockwise, the screw rods are lowered or raised by the screw action of the nut & screw rod 8.

When the screw rod 8 of the movable pressing member 51, 52 is lowered, the upper end surface in the width direction of the tape is pushed by the upper flange 56&C of the drum group, and the lower end surface in the width direction of the tape is pushed against the reference guide (Fig. 6, (omitted in FIG. 7), and the tape runs along this lower reference surface.

Furthermore, when the 7 crescent rods of the movable suppressing members 51 and 52 are raised, the lower end surface of the tape in the width direction is controlled by the 7 lunges 57 at the bottom of the drum group, and the upper end surface of the tape in the ring direction is placed above the basic guide. , and the tape runs along this upper reference surface.

FIG. 8 is a perspective view showing a different embodiment of the switching control means for the movable suppressing member in this second embodiment H.

In other words, the switching control means for the movable suppressing member shown in No. 8 is comprised of a switching lever 63, a pair of pushers 65 fixed to the upper surface of the switching lever 63, and a drive arm provided on the upper surface of the fixed plate shaft. It has two pairs of 1114 luxury means and 67. The switching lever 63 is connected to a reciprocating drive source (not shown) via a rack, binion, etc., and is connected to the switching lever ω of the second embodiment shown in FIGS. 6 and 7. Same (ho).

It is a trap to be driven in the (toward) direction. In the above-mentioned first shift, when the switching lever 63 moves in the (E) direction, the first shifter pushes the drive arm O to rotate the screw rod 8 clockwise when viewed from the plane, and the switching lever 63 moves in the (E) direction. When the screw rod 8 is moved in the direction shown in FIG. The adjustment means 67 for the drive arm is configured so that the range of rotation of the drive arm blade can be adjusted.

The other functions of the second structure of the embodiment shown in FIG. 8 are the same as those shown in FIGS. 6 and 7.

9 is a perspective view showing a third embodiment of the present invention.

The tape running regulating device of the third embodiment includes a movable pressing member 69 as a tape moving means, a bimorph 72 constituting a switching control means for the movable suppressing member 69, and a bimorph 72 which constitutes a switching control means for the movable suppressing member 69 movable pressing member group,
a base 73 supporting ω; the movable suppressing member group;
69 bimorphs 72 and a driving electric power @74.

The movable suppressing member 69 has upper and lower pressing surfaces 70.
, 71 are formed. A pressing surface 70 is provided at the upper and lower portions.
As in each embodiment, the interval J between the tapes 71 is equal to or slightly wider than the maximum allowable width of the tape.

The power source 74 for driving the bimorph 72 is a power source 74 for driving the bimorph 72.
The relationship between the supply current and strain for 2 K was confirmed in advance through experiments, and the bimorph 72 was supplied with a current in a certain direction, that is, (E).
The movable pressing member section, 6
K is designed to move 9 in the (H direction or one direction).

This third practical one supplies current to the bimorph 72 K of the movable suppression section 69 through the driving power source 74, and the aim is to supply current to the movable suppression member 72 via the bimorph 72 on the outward journey of Qi 1. As a result, the upper pressing surface 7 of the movable suppressing member 68, 69
0 pushes the upper end surface of the tape in the width direction, the lower south surface of the tape in the width direction contacts the lower reference surface of a reference guide (not shown), and the tape runs according to the lower reference surface.

Then, current is switched and supplied to the bimorph 72 of the movable pressing member 69, and the movable suppressing member 69 is moved in one direction via the bimorph 72 on the outward path of tape running. From this K, the lower end face of the tape in the width direction is pressed by the lower suppressing surface 71 K of the movable suppressing club association 69, and the upper end face of the tape in one direction comes into contact with the upper reference surface of the reference guide, and the tape is Travel according to the upper reference plane.

In addition, in this third implementation, the Mobile Suppression Department Association, 6
Further, FIG. 10 is a perspective view showing a fourth embodiment of the present invention.

This fourth practical tape running regulation device includes movable suppressing members 75, 76 as tape moving means, support stands 79 installed corresponding to each movable pressing member 75, 76,
A support arm (equipment) is provided integrally with the movable suppressing member 75, 76, is rotatably attached to the support base 79 via a hinge 81, and constitutes switching control means for the movable suppressing member 75, 76. , a magnet 8 provided on each support stand 79, a coil blade provided on an actuator 83 attached to the bottom of each support arm and fitted into a guide member 82, and a current applied to the coil. t source 86 that supplies
It has

The movable suppressing members 75 and 76 have pressing surfaces 7 on the upper and lower parts.
7.78 is thrown, and the spacing J between the suppressing surfaces 77 and 78 is, as in other implementations, equal to or much wider than the maximum permissible value of the tape.

By switching the direction of the current supplied from the power source 86 to the coil A, the magnet layer, the coil back, and the power source 86 move the movable suppressing member 75 and 76 in the (G) direction via the actuating arm and the support arm. Alternatively, it can be moved in one direction by 5 or 4 fl.

The tape running regulation device of this fourth implementation row supplies the WIL flow to the coils 85 of the movable suppressing members 75 and 76 through the basket @86, and on the outward path of tape running, the actuator is supplied through the coil A. When the support arm (4) is operated downward and the movable pressing members 75, 76 are moved in the (G) direction, the upper end surface of the tape in the width direction is pressed by the pressing surface 77 on the upper part of the movable pressing member 75, 76. When pressed, the lower end surface of the tape in one direction contacts the lower basic surface of a reference guide (not shown), and the tape runs according to the lower reference surface.

In addition, the direction of the current supplied from the source 86 to the coil A is switched, and on the return trip of the tape run, the actuator & and the support arm are operated upward via the coil 85.
When the movable pressing member 75, 76 is moved in one direction, the pressing surface 78 at the bottom of the movable pressing member 75, 76 causes the tape to move in! The lower end surface in the direction is pushed, the upper end surface in the width direction of the tape comes into contact with the upper reference surface of the reference guide, and the tape runs according to the upper reference surface.

Note that also in this fourth embodiment, the movable suppressing member 75
．． It is also possible to provide means for restricting the movement of 76.

Next, FIG. 11 is a perspective view showing a fifth embodiment of the present invention,
The third ratio diagram is a longitudinal sectional view of the tape moving means shown in FIG.
FIG. 13 (aJs (bJ is an explanatory diagram of the same action.

This fifth embodiment of the tape running regulating device includes a head having head chips 25, and a reference guide 2 installed on both sides thereof and having reference surfaces 29 at the lower and upper portions.
6.27, a reference guide door, a movable inclined member 87.88 as a means for moving the tape pressed on the outside of 27, and a switching lever 92 constituting a switching control means for this movable inclined member 87.88. It is equipped with

The head and reference guides 26,27 are similar to those described in the first embodiment.

The movable tilting members 87 and 88 are integrally attached to the upper half part 141 of the chassis at an angle with the rotational axial force vertically supported by a bearing 89 provided on a fixed member such as a chassis group. It has a cylindrical body 91.

The height of the cylindrical body 91 is equal to or higher than the maximum allowable value of the tape. Furthermore, the inclination angle β of this cylindrical body 91 with respect to the rotational axial force is 0 and β≦5.
° etc. The cylindrical body 91 is a trap so that it can rotate together with the rotational axial force. Furthermore, a pinion 94 is provided at the lower end of the rotational axial force.

The switching levers n of the movable tilting members 87 and 88 are connected to four drive sources (not shown) and are provided movably in the (direction) or (toward) direction. for,
A rack profile is formed at a position corresponding to the rotating shaft 90 of the movable inclined members 87, 88, and this rack 93 meshes with the rotating shaft (3).

The tape running regulation device of the #1 and #5 implementation rows, for example, drives the switching lever 92 in the (E) direction on the outward path of tape running, and by slow movement of the rack-binion 93, 94 and the rotating shaft 9, the movable pressing As shown in FIGS. 11, 12 and 13 (al), the cylindrical body 91 of the members 87 and 88 is set so that the downward slope 91 a of the cylindrical body 91 is tapered Km. As a result, each Movable flJUJ') member 8
Due to the action of the downward slope 91a of the cylindrical body 91 of 7.88, the pressure distribution between the upper side and the lower side of the tee 7'' changes when the tape runs, and the tape tension, couple, and K change the retape. The tape moves downward, and the lower end surface of the tape in the width direction comes into contact with the lower reference surface of the reference guide A, 27.
The tape runs according to the reference surface below the cutting Hc.

Also, on the return trip after traveling 7°, the switching lever 92 is moved in the direction (toward), and the cylindrical body 91 of the movable inclined member 87.88 is , and set it so that the upward Me surface 91 b of the cylindrical body 91 is in contact with the tape as shown in FIG. The tape moves upward due to the action of 1mM [TLI91b, and the upper end surface in the width direction of the tape contacts the reference surfaces on the upper part of the reference guide %, 27, and the tape is run according to the reference surface 29 on the top of the machining arrangement. do.

In addition, in this fifth embodiment, the inclined surfaces 91a and 91b of the cylindrical body 91 should face the tape (the cylindrical body 91
A regulating means for zero rotation movement may be provided.

Next, No. 14- is a side view showing different implementations of the cylindrical portion of the tape moving means in the fifth embodiment;
FIG. 5 is a bottom view of the cylindrical body, and FIG. 16(a).

(b) is an explanatory diagram of the same effect.

In the real row 21Illi shown in these figures, the cylindrical body 95 of the movable diagonal member has a moving surface 97 of the chi 1 having mutually different shapes at 180 degrees symmetrical positions in the circumferential direction. One of the moving surfaces 96 of the tape has an upper half in the height direction of the cylindrical body formed with a downwardly facing slope 96a, and a lower half with a vertical surface 96bK. The other moving surface 97 of the tape is formed such that the lower half in the height direction of the cylindrical body 95 is formed as an upward inclined surface 97a, and the upper half is formed as a vertical surface 97b.

In this practical case, N is the first on the outward path of tape running.
As shown in FIG. 6(a)K, one of the moving surfaces formed on the cylindrical body 95 is set at a position where the tape Km is to be applied. This is K
As a result, the tape moves downward due to the action of the inclined surface %a on the tape moving surface 96, and the lower end surface of the tape in the ring direction comes into contact with the lower reference surface of the reference guide (omitted in this embodiment). The tape moves according to the lower reference plane.

Also, the target is Figure 16 (bJ &
As shown in C, 5K, the other moving surface formed on the cylindrical body 95%
Set it to the position where it touches Chi 7&'C. As a result, the tape moves upward due to the action of the inclined surface 97a on the tape moving surface 97, and the upper end surface of the tape comes into contact with the reference surface on the upper part of the reference guide.

The tape runs according to the upper basic plane.

In addition, in the embodiment shown in FIGS. 14 to 16 (al, (bJK), the thickness of the IIt surface 96ae 97a only needs to be slightly larger than the width of the tape.

Other configurations and effects of this embodiment are the same as those in the fifth embodiment fl described in in. Next, Fig. 17 is a perspective view showing the implementation row of m6 of the present invention, and Fig. 18 shows the movement of the tape. A vertical cross-sectional view of a movable Nf+ member as a means and a member constituting a switching control means thereof, and 19th column (at and (bj) are action explanatory diagrams.

The tape running regulating device shown in the sixth embodiment includes movable inclined members 98 and 99 as tape moving means.

Switching of the support stand 101 and the movable inclined member frame 99''
, a control lever 104 constituting a control means, a 1-lunger 105 that controls the movable 1@diagonal member 98,99 via this control lever 1θ4, and a stopper 110 of the control lever 104. It is equipped with Ill.

The separate movable 1 fI+ members 98 and 99 have an M slope 100 for moving the chi 1 at the end that contacts the tape.

The ITIJ support stand 101 is attached to a fixed member such as a chassis. The support stand 101 has a bottle 10
2, movable tilting members 98, 99 are tiltably supported.

The movable inclined members 98 and 99 are tilted and biased in a direction in which the inclined surface 100 is inclined downward by a torsion spring ID3 applied between the bin 102, each movable inclined member 98 and 99, and the support base 101. There is.

The control lever 104 is connected to each movable diagonal member 98,99.
connected to the bottom of the rear end side, and plunger It)5
and stopper 110. It extends in the 111 direction.

A rod 106 that pulls the control lever 104 is connected to the first langeer 105, and a compression spring 107 that pushes the control lever 104 downward is provided on the rod 106. The force is now regulated. The first langeer 105 is connected to the torsion spring 10 by the rod 106.
3, the control lever 104 is pulled down so that the inclined surface 100 of the movable inclined member 98,99 is inclined upwardly.
Through the control lever 104, the movable ramp member 98,99
It has become a trap to control it.

One of the stoppers 110 and 111 is attached to a bracket 109,
Via the control lever 104, the inclined surface 100 of the movable inclined member 98, 99 is regulated downward at a predetermined angle rIK. The other stopper 111 is provided on a fixed member such as the chassis 50, and is configured to restrict the inclined surface 100 of the movable inclined member 98, 99 upward by a predetermined angle γ2Vc via the control lever 104. Also, the stopper 110. A screw is used in 111 to form the angle r of the slope 100.

γ2 can be finely adjusted.

In the sixth embodiment, for example, the plunger 105 is switched to non-operation during the outward movement of the tape.
The movable inclined member 98 is moved by the action of the torsion spring 103.
*Weak tilts clockwise in Figure 18, and its ode fp
The positive surface 100 is filled downward and set at a predetermined angle γ1 by the stopper 110. As a result, the tape 120 is attached to the downwardly inclined surface 1, as shown in factor 19 (a).
00, the lower end surface of the tape 120 in the width direction comes into contact with the reference surface pressure of the lower part of the reference guide (omitted in this embodiment), and the tape 120 runs according to the lower reference surface.

For example, when the plunger 105 is switched to the operating side on the return trip of tape running, the control lever lO4 is pulled through the rod 106, and the movable inclined member 99 is moved against the torsion spring 103 as shown in FIG. tilt in the direction. As a result, the inclined surface 100 of the movable inclined member portion 99 is tilted upward &CQ, and is set at the predetermined upward angle γ2 by the stopper 111. Therefore, as shown in FIG. 19 (bJ), the tape 120 moves along the upward kc forehead slope 10.0, and the upper end surface of the tape 120 in the width direction contacts the reference direction of the upper part of the reference guide, and 1120 runs along the upper reference plane.

Next, the mth figure shows the movable 111ifP in the sixth implementation row.
Perspective view showing different implementation rows of r members, FIG. 21 (al,
(bl is also an action explanatory diagram.

In the embodiment shown in these figures, the movable ramp member 112 &
'The inclined surface 113 for moving the C tape! @1. 1st. The surfaces 113a and 113b are recessed with respect to the tape running surface and are combined in a shape that is opposite to the tape running surface.
', etc.

Then, in the return path of tape running, the arrangement is performed using the movable inclined member 11.
2 with the bottle 102 as a fulcrum, as shown in FIG.
13b is tilted to 5 so that the pressure is almost vertical.

As a result, the tape 120 is moved downward by the tenth element 1i3a, and the lower end surface of the tape 120 in the width direction comes into contact with the lower reference surface of the reference guide (not shown).
20 runs according to the lower reference plane.

Next, for example, on the return trip of tape running, the movable inclined member 11
2 is moved 5 & CM so that the second surface 113b is tilted upward and the 10th surface 113a is almost vertical, as shown in FIG. Moving upward, the upper end surface of the tape 120 in the width direction contacts the upper reference surface of the reference guide, and the tape 120 runs according to the upper reference surface.

Regarding other configuration 1 effects of the second to sixth implementation rows,
This is the same as the first implementation column.

Note that in the embodiment shown in Figure 1, the tape is run using the lower end surface in the width direction as a reference in the forward path and the upper end surface in the width direction of the tape in the return path. The tape may be run using the upper end surface of the tape in the width direction as a reference in the outward path, and the lower end surface of the tape in the width direction may be used as a reference in the return path.

According to the present invention, reference guides are fixed on the entry side and exit side of the recording/reproducing head in the tape running direction, respectively, and the reference guides are fixed on the respective reference guides.

In a tape running regulation device that has a reference plane at the bottom that regulates tape running by bringing both end faces of the tape in the width direction into contact pfR, the distance between the upper and lower reference planes of the reference guide is set to the width of the tape. The allowable maximum constant pressure is approximately equal, and there is a tape moving means for moving the tape in the width direction near each reference guide, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction, and a tape moving means for moving the tape in the width direction. By providing a switching control means for switching and controlling the moving means so that the end surface in the width direction of the tape comes into contact with the end surface in the width direction of the tape and on the return trip, the end surface in the width direction of the tape contacts the other of the upper and lower reference surfaces. # Tape AII even if there is an AK error.

Since recording tracks can be created at fixed positions from both ends of the tape in the width direction without inverting the B side, track compatibility can be maintained between when playing in reverse mode and when playing in one direction. There are benefits to be gained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a first implementation row of the present invention, and FIG.
Side view of the movable suppressing member and its support stand as a tape moving means in the implementation row (ale (bl,
(cl is an explanatory diagram of the same action, FIG. 4 is a side view showing a different implementation of the movement restricting means of the movable pressing/pressing member in the first implementation M&C, and FIG. 5 is a side view of the movable suppressing member in the first implementation row. FIG. 8 is a longitudinal side view showing different embodiments of the switching control means.The sixth figure is a perspective view of the second embodiment of the present invention, FIG. 7 is an enlarged longitudinal side view of the same, and FIG. FIG. 9 is a perspective view showing different implementation rows of the switching control means of the movable suppressing member in FIG. 9 is a perspective view showing a third implementation row of the present invention. FIG. FIG. 11 is a perspective view showing an implementation row of WIJ5 of the present invention, FIG. Figure (a). (bl is an explanatory diagram of the operation of the same tape moving means, FIG. 14 is a side view of a different embodiment of the tape moving means in the fifth embodiment, FIG. 15 is an inner bottom view, Figure talt(b
1 is an explanatory diagram of the same action. The 17th factor is a perspective view showing the 6th implementation row of the present invention;
, (bJ is an explanatory diagram of the action of the movable inclined member as a means for moving the same tape, and the fourth figure is the movable la in the sixth implementation row.
A side view of a different embodiment of the diagonal member, FIG.
(bJ is an explanatory diagram of the same action. Figure 4 is a front view showing one example of the prior art;
, (bJ is a front view showing another example of the prior art, Fig.
a), (b) # (C) is an explanatory diagram showing the relationship between the tape width error and the tape guide in the prior art, and Figure δ, Figure 3, Figure n, Figure 3, and Figure 4 are tape diagrams. Explanatory diagrams showing various conventional techniques in which the tape is run with one end face in the width direction as a reference, Figures M30 (al, (b), (cl) are 4 of the tape in the conventional techniques shown in Figures δ to 4 above.
Explanatory diagram showing the relationship between the error in tape width and the track position when a recording track is created by reversing the surface and Bil, 3rd
Figures 1 (a) and 1 (b) show the error in tape width when recording is performed by switching the running direction of the tape without reversing the 4th and B sides of the tape using the conventional technology shown in Figures 5 and 4. FIG. 3 is an explanatory diagram showing the relationship between the track position and the track position.田...Head, Sae, 25...Head chip, 26.
27...Reference guide, a, 29...Lower provided in the reference guide. Upper reference plane, chrysanthemum, 31... Movable suppressing member as tape moving means, feather, 33... Upper and lower suppressing surfaces provided on the movable pressing member, a, 35... Movable suppressing member Support stand, A... Switching control means for the movable suppressing member, J...
- Distance between the upper and lower pressing surfaces, W + "... Maximum allowable value of the tape width, K4... Distance between the recording track and the edge of the tape in the width direction, 42-49... of the movable pressing member. Components of the switching control means, 51. 52... Movable pressing member, 55-57... Members constituting the pressing member, 53
．． 54゜58-61...Members constituting the switching control means for the movable pressing member, 63-65...Members constituting the switching control means, brocade, 69...Movable pressing member, 70
．． 71... Upper and lower pressing surfaces of the movable suppressing member, 72.
74... Member constituting switching control means for the movable pressing member, 75.76... Movable suppressing member, 77.78...
- Upper and lower pressing surfaces of the movable pressing member, 80 to 86...
A member constituting a switching control means for a movable pressing member, 87
．． 88...Movable inclined member as tape moving means,
Circle: rotation axis of the movable inclined member, 91: cylindrical body forming the movable me member, n~%: member forming the movable inclined member, 95: movable inclined member, %, 97
...Tape moving surface, 98.99--Movable inclined member,
100... Sloped surface for tape movement, 101... Support stand for movable inclined member, 103-108... Member constituting switching control means for movable inclined member, 112... Movable inclined member, 113... Inclined surface for tape movement, 120
---Tape, 121. 122... Recording track. Patent applicant Akai Electric Co., Ltd.: 1 Agent Patent attorney Mizu 1) Takesanbu;, 'Fig. Movable I4-kun 100; 444 side 101 ・Zbar t +03') - 1st 3rd pin is "1st 1104: Taste 1 wandering role lever +05: 71 lunge °P 106° control lever'-false eotsud +07: rl t；<ノ王ス7fl&”6+t
o, to: Nutonno ('' Figure 18 example m group Figure 19 between I and Stヱ fan (a) (b)

Claims (1)

[Claims] 1. A reference guide is fixed to each of the entry and exit sides of the recording/playback head in the tape running direction, and both end surfaces of the tape in the width direction are brought into contact with the upper and lower parts of each reference guide. In the tape running regulating device, the distance between the upper and lower reference planes of each of the reference guides is formed to be approximately equal to the maximum allowable value of the tape width dimension;
A moving means for moving the tape in the width direction is provided near each of the reference guides, and an end face of the tape in the width direction is brought into contact with one of the upper and lower reference surfaces of each reference guide during the outward journey of the tape, and during the return journey. A tape run regulating device for a reciprocating performance device, comprising a switching control means for switching and controlling the moving means so as to bring a widthwise end surface of the tape into contact with the other of the upper and lower reference surfaces. 2. A tape running regulating device for a reciprocating performance device according to claim 1, wherein the moving means is configured to press and move an end face of the tape in the width direction. 3. A tape running regulating device for a reciprocating performance device according to claim 1, wherein the moving means is configured to move the tape using an inclined surface.