KR910005211Y1 - Reverse type tape recorder - Google Patents

Abstract

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Description

Reverse tape recorder

1 to 6 show an embodiment of the present invention, Figure 1 is a perspective view of the main portion of the reverse tape recorder of the present invention.

2 is a copper plan view.

3 is a III perspective view of FIG.

4 is a second diagram and in-phase diagram in a state in which the tape travel direction is different.

5 is a perspective view of FIG.

6A and 6B are explanatory diagrams showing a relationship between a reciprocating member and an Esmus adjusting screw.

7 is a plan view showing a contact state between a magnetic head and a tape of a conventional tape recorder.

* Explanation of symbols for main parts of the drawings

9: magnetic tape 12: magnetic head

12a: magnetic gap 21: reciprocating member

22, 23, 26, 27: Esmouth adjustment screw 25a, 25b: Head asmouth adjustment mechanism

l: axis perpendicular to the tape running direction

The present invention arranges the magnetic head in an inclined direction with respect to the tape running direction and switches the inclined direction at the time of changing the running direction of the tape to reduce the wear in the magnetic gap portion of the magnetic head and to exhibit a head cleaning effect. It relates to a reverse tape recorder with a long life.

In general, the tape recorder is arranged so that the magnetic head a is orthogonal to the traveling direction of the magnetic tape b as shown in FIG.

Therefore, the magnetic tape b is the strongest contact of the magnetic gap c located in the center of the tape contact surface of the magnetic tape a, so that the wear and tear of this part proceeds to a certain extent, and the recording and playback characteristics rapidly decrease, and finally it cannot endure use.

In addition, the magnetic tape b also wears due to the contact between the magnetic head a and the magnetic tape b, and the fine powder produced by the wear becomes a "dirt" of the tape contact of the magnetic head a, thereby degrading the recording and reproduction characteristics. In order to use in the tape, it is necessary to clean the tape contact surface frequently, which is cumbersome.

The present invention has been made in view of the above circumstances, and has a reverse type that can reduce wear at the magnetic gap portion of the magnetic head and can automatically remove the “dirt” attached to the tape contact surface to increase the life of the magnetic head. It is an object to provide a tape recorder.

In order to achieve the above object, the reverse tape recorder of the present invention is inclined by the reciprocating member which arranges the magnetic head inclined with respect to the axis perpendicular to the traveling direction and reciprocates or double-moves in association with the switching operation of the tape traveling direction. The direction can be changed.

The two-channel magnetic head may be moved or doubled in the width direction of the magnetic tape by the reciprocating member so that the magnetic gap of the magnetic head coincides with the regeneration track of the magnetic tape.

In addition, a pair of head smouth adjusting mechanisms capable of adjusting head smus independently of each other at both sides of the magnetic head are provided, and at least one head smouth adjusting mechanism is disposed on both sides of the reciprocating lamp operating member and the magnetic head. It is preferable to configure it as an Esmus adjusting screw which is screwed into a site | part and makes a tip end a part of the said reciprocating motion member.

When the tape running direction is switched, the inclined direction with respect to the axis perpendicular to the tape running direction of the magnetic head is changed in the double-reciprocating member as the reciprocating member moves back or forth in connection with this switching operation.

Hereinafter, one embodiment of the present invention will be described with reference to the drawings.

1 is a top perspective view of the main portion of the reverse tape recorder of the present invention, in which (1) is a head mounting plate made of a thin metal plate in the transverse direction, and at one side of the width direction, the height protruding perpendicularly upward is low. The stone wall part 2 is bent, and it is attached to the chassis 3 by the predetermined | prescribed range reinforcing material to arrow A, B direction.

On the upper surface of the head mounting plate 1, a tape position regulating member 4 made of synthetic resin is attached.

The tape position regulating member 4 is first, second, and third protruding in parallel to the longitudinally long bottom plate 5 and the widthwise one side surface of the bottom plate 5 at predetermined intervals in the longitudinal direction thereof. And the tape guide pieces 6 ₁ , 6 ₂ , 6 ₃ , and 6 _{4 in} FIG. ₄ .

These first-tape guide piece ₍₆₁₎ of the fourth ₍₆₄₎ is upright with respect to the upper surface of the bottom plate (5) that each distal end portion is drawn out to a predetermined length in the transverse direction outward from the side edge of a bottom plate (5) have.

The first and second tape guide pieces 6 ₁ and 6 ₂ are integrally connected to each other by a connecting wall 7 ₁ which is substantially interposed between the protruding directions thereof.

In addition, the third and fourth tape guide pieces 6 ₃ and 6 ₄ are integrally connected to each other by connecting walls 7 ₂ which are interposed between the middle portions of the protruding directions.

In addition, between the 2nd tape guide piece 6 ₂ and the 3rd tape guide piece 6 ₃ becomes the excretion space 0 of the magnetic head 12 mentioned later.

At each distal end of the _{first to} fourth tape guide pieces 6 _{1 to} 6 ₄ , cutouts 10 corresponding to the width of the magnetic tape 9 are formed, respectively, so that the magnetic tape 9 is a magnetic head. When the front surface of the magnetic tape 9 is inserted into these cutouts 10 when traveling in the direction of the arrow in Fig. 2, the widthwise movement of the magnetic tape 9 is prohibited.

In the tape position regulating member 4 constructed as described above, both longitudinal ends of the bottom plate 5 are fixed to the upper surface of the head mounting plate 1 by means of a screw 11.

In the excrement space 8 between the tape guide piece 6 ₂ of the tape position regulating member 4 and the third tape guide piece 6 ₃ , the branch head 12 is an axis perpendicular to the tape running direction. It is arrange | positioned inclined with respect to l, and the inclination direction is switched.

The magnetic head 12 is a two-channel type, and a metal support piece 13 on the upper surface thereof is a two-channel type, and a metal support piece 13 is fixed on the top surface thereof by welding or the like. It is fixed to the upper surface of the substantially middle part of the holder 15 by the bis | screws 14.

The holder 15 is made of synthetic resin, and its intermediate part is attached to the mounting side 16 protruding from the upper surface of the bottom plate 5 of the tape position regulating member 4 in a predetermined range of rotational restraint and vertical movement material.

The lower end of the mounting shaft 16 is fixed to the head mounting plate 1 by a belt.

The holder 15 is formed by integrally protruding the elongated walls 18a and 18b on both sides of the upper end of the quadrilateral main body 17 in which the rear surface is opened, and the upper and lower walls 19a and 19b of the main body 17. The mounting shaft 16 penetrates.

The holder 15 is urged downward by the coil spring 20 which is opened between the lower wall 19b of the main body 17 and the spring-based portion 16a of the mounting side 16.

The holder 15 is moved up and down and rotates by the reciprocating member 21 which moves back and forth in relation to the tape travel direction.

As the switching operation of the tape running direction, the folding operation of the left and right pinch rollers (not shown) with respect to the capstan (not shown), and the transmission and blocking operation of the rotational force of the motor (not shown) as the left and right rail support (not shown) are shown. to be.

The reciprocating member 21 is fixed between the bottom plate 5 of the tape position regulating member 4 and the stone wall portion 2 of the head mounting plate 1 in the direction of arrows C and D in the drawing in a predetermined range. have.

The reciprocating member 21 is made of a cage made of elastic synthetic base material, and the first lower surface 21a, the first inclined surface 21b, and the first lower surface 21a are sequentially formed from the one end shaft toward the other end on the upper side portion thereof. The first inclined surface 21b, the first high surface 21c, the second potential surface 21d, the second inclined surface 21c, and the second high surface 21f are addressed.

The first egg that is mounted on the rear axle of the elongated wall 18a of one side (left in the figure) of the holder 15 on the first lower surface 21a, the first inclined surface 21b, and the first high surface 21c. The lower end (tip) of the mush adjustment screw 22 abuts.

Moreover, the 2nd which mounts in the rear axis of the elongate wall 18b of the other (right side in figure) of the holder 15 in 2nd low surface 21d, 2nd inclined surface 21e, and 2nd high surface 21f. The lower end of the Esmus adjusting screw 23 is in contact with.

Then, when the reciprocating member 21 moves in the left direction (arrow c direction) in the figure, the magnetic tape 9 travels from the right to the left side and the first and second edmouth adjusting screws 22 and 23 The magnetic head 12 is raised integrally with the holder 15 against the negative force of the spring 20 in contact with the lower first and second high surfaces 21c and 21f, that is, in the width direction of the magnetic tape 9. The magnetic gap 12a of the magnetic head 12 coincides with one of the regeneration trucks of the magnetic tape 9.

In addition, when the reciprocating member 21 is moved in the right direction (arrow D direction) in the figure, the magnetic tape 9 travels from left to right, so that the third and fourth Esmus adjusting screws 26 and 27 described later. The lower end is in contact with the upper surface of the bottom plate 5 of the position regulating member 4 and the magnetic head 12 is held in the lowered position as a force of the spring 20 so that the regenerated tape 9 on the other side of the magnetic tape 9 The magnetic gap 12a of the magnetic head 12 coincides with the regeneration truck on the other side.

When the magnetic head 12 is in the ascending position, the lower ends of the third and fourth Ethmus adjusting screws 16 and 27 are separated from the upper surface of the bottom plate 5 (FIG. 6a). When the is in the lowered position, the lower ends of the first and second Esmus adjusting screws 22 and 23 are separated from the first and second high surfaces 21d. (Figure 6b).

On the side face of the magnetic head 12 side of the reciprocating member 21, the pressing pieces 24a and 24b which have elasticity at predetermined intervals are integrally protruded.

The main body 17 of the holder 15 is arrange | positioned between these press pieces 24a and 24b.

Then, when the reciprocating member 21 is moved in the left direction in the figure, the pressing piece 24b on the right side in the figure presses one side of the main body 17 of the holder 15 so that the holder 15 and the magnetic head ( 12) is rotated counterclockwise in the figure centering on the mounting side 16 to be inclined to the left with respect to the axis L perpendicular to the tape running direction (state of FIG. 2).

In addition, when the reciprocating member 21 is moved to the right side in the figure, the pressing piece 24a on the left side of the figure magnetizes with the holder 15 integrally by dkq pressure on the other side of the main body 17 of the holder 15. The head 12 is rotated clockwise in the figure around the mounting side 16 to be inclined to the right with respect to the axis L perpendicular to the tape running direction (state of FIG. 4).

A pair of head edmus adjustment mechanisms 25a and 25b are provided on both sides of the magnetic head 12 which can independently adjust head edmus.

One of the head smouth adjusting mechanisms 25a includes the first and second smouth adjusting screws 22 and 23 and the first and second high surfaces 21c and 21f of the reciprocating member 21. It becomes.

The other head smuth adjusting mechanism 25b includes third and fourth smouth adjusting screws 26 mounted on the full axes of the elongated walls 18a and 18b on both sides of the holder 15, and The bottom plate 5 of the tape position regulating member 4 which the lower end (tip) of these 3rd and 5th Emuth adjustment screws 26 and 27 contact | abuts at the time of the lowering of the 27 and the holder 15. As shown in FIG. It becomes as.

Next, the operation of the reverse tape recorder having the above configuration will be described with reference to FIGS.

It is in the state traveling from the right to the left, and the reciprocating member 21 has moved to the left side in the figure.

In addition, the magnetic head 12 is integrally held with the holder 15 in the raised position so that the magnetic gap 12a of the magnetic head 12 coincides with one of the regeneration trucks of the magnetic tape 9.

Again, the magnetic head 12 is switched in a state inclined to the left with respect to the axis L perpendicular to the tape travel direction.

Then, the magnetic tape 9 travels from the right side to the left side in a state in which the magnetic tape 9 is pressed against the tape contact surface 12b of the magnetic head 12 by the pod 29 mounted on the pod spring 28 in the tape cassette. The reproducing operation is performed.

At this time, the magnetic tape 9 is most strongly wetted to the right part in FIG. 2 in the magnetic gap 12a of the magnetic head 12.

In such a state, if the vehicle is shifted from the left to the right in the tape traveling direction, the reciprocating member 21 moves to the right side (arrow D direction) from the positions shown in Figs. 2 and 3 in relation to the switching operation. And the first and second upper and lower surfaces 21b and 21e, which are in contact with the second upper and lower surfaces 21c and 21f, are slid and descend, or the first and second lower and lower surfaces 21a and The lower end of the third and fourth Ezmus adjusting screws 26 and 27 in contact with 21d abuts the upper surface of the bottom plate 5 of the tape position regulating member 4 so as to contact the magnetic head 12. Is kept in the lowered position.

On the other hand, the left side surface of the main body 17 of the holder 15 is pressed by the left side of the pressing piece 24a in accordance with the movement of the reciprocating member 21 to the right side, and thus the magnetic head ( 12 is rotated clockwise in the drawing about the mounting side 16 and the magnetic head 12 is turned to the right inclined with respect to the axis l perpendicular to the tape travel direction, so that It becomes a state.

In this state, the magnetic tape 9 is most strongly wetted to the left part by the magnetic gap 12a of the magnetic head 12, and the magnetic gap 12a is matched with the regeneration truck on the other side of the magnetic tape 9. Drive from left to right to perform the regeneration operation of the other regeneration truck.

In this way, when the inclination direction with respect to the axis L perpendicular to the tape travel direction of the magnetic head 12 is changed as the traveling direction of the magnetic tape 9 is changed, the portion where the most "dirty" is attached until then is attached. Since the magnetic tape 9 is brought into the strongest contact, the “dirty” of the magnetic head 12 is automatically removed by the contact of the magnetic tape 9.

Next, a procedure for performing head smouth adjustment will be described.

First, the reciprocating member 21 is moved to the left to lower the magnetic head 12 together with the holder 15 so that the lower ends of the third and fourth Ethmus adjusting screws 26 and 27 are tape position regulating members. In the state which abuts on the upper surface of the bottom plate 5, if the 3rd and 4th Ethmus adjustment screws 26 and 27 are rotated forward and backward, head Ezemus adjustment is performed in the lowered position of the magnetic head 12. As shown in FIG.

In addition, the reciprocating member 21 is moved to the right to raise the magnetic head 12 together with the holder 15 so that the first and second upper surfaces 21c and 21f are brought into contact with each other. When the E-MUS adjusting screws 22 and 23 are rotated forward and backward, the head E-MUS adjustment at the raised position of the magnetic head 12 is performed without affecting the E-MUS adjustment result at the lower position of the magnetic head 12. All.

As described above, in the reverse tape recorder of the present invention, since the magnetic head is disposed to be inclined with respect to an axis perpendicular to the tape traveling direction, the magnetic tape is most strongly in contact with both sides of the magnetic gap of the magnetic head.

Further, the strongest contact is alternately changed in accordance with the switching of the tape running direction, thereby reducing wear and tear of the magnetic head. In particular, wear at the magnetic gap position is remarkably small, and the life of the magnetic head can be extended.

As the tape running direction is changed, when the inclination direction of the magnetic head is switched, the tape in the portion where the "dirt" is most adhered up to that time moves to the position where it is most strongly wet.

This automatically removes the "dirt" of the magnetic head by the contact of the magnetic tape.

Therefore, a particularly good practical effect is obtained when applied to a casteo type tape recorder which is difficult to perform head cleaning.

According to the structure of claim 2, in the reverse tape recorder using the two-channel magnetic head, the magnetic head is rotated by using the movement of the reciprocating member for raising and lowering the magnetic head. Therefore, the driving means for rotating the head is specifically provided. There is no need to simplify the configuration.

In addition, according to the configuration of claim 3, the head smus adjustment in the lowered position of the magnetic head is made independent of each other by using the movement of the reciprocating member. Esmus adjustment can be performed at the lowered position of the magnetic head without the inclination, and vice versa.

Therefore, even when the magnetic tape travels in any direction, a high degree of head-ems adjust is easily performed.

In the embodiment, the magnetic head 12 is inclined to the right when the magnetic tape 9 travels to the right, and the magnetic head 12 is inclined to the left when the magnetic tape 9 travels to the left. The same effect can be obtained even if the running direction of the tape and the inclination direction of the head are inversed.

Claims (3)

A reverse tape recorder capable of driving a magnetic tape in one of the right and left directions, wherein the magnetic tape is disposed inclined with respect to an axis perpendicular to the running direction, and the reciprocating member reciprocates or doubles in relation to the switching operation of the tape running direction. A reverse tape recorder characterized by switching the inclination direction of a magnetic head. 2. A reverse method as set forth in claim 1, wherein a two-channel magnetic head is swung or doubled in the width direction of the magnetic tape by the reciprocating member so that the magnetic gap of the magnetic head coincides with the regeneration truck of the magnetic tape. Expression tape recorder. 3. The apparatus according to claim 2, wherein a pair of head edmus adjusting mechanisms capable of adjusting head smouths independently of each other at both sides of the magnetic head are provided, and at least one head smouth adjusting mechanism is formed by a portion of the reciprocating member and the magnetic field. A reverse tape recorder, comprising: an edmouth adjusting screw which is screwed into both side portions of the head and abuts a tip of a part of the reciprocating member.