KR920005436Y1 - Head attaching board control device - Google Patents

Abstract

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Description

Head recorder motion control device of tape recorder

The drawing shows an embodiment of the present invention,

1 is a plan view of a tape recorder having a head mounting plate motion control device of the present invention.

2 is a bottom perspective view of the trigger member of the control device shown in FIG.

Fig. 3 is an exploded perspective view of a related part for carrying out ejection and ejection of a tape cassette in the tape recorder of Fig. 1.

4 is a side view of the assembled state showing the ejected state.

Figure 5 is a side view of the assembled state showing the copper clad state.

6 to 9 are diagrams illustrating the operation of the control device shown in FIG.

* Explanation of symbols for main parts of the drawings

1 substrate 5 head mounting plate

7 spring 11 trigger member

14a: abutting part 16: protrusion part (second stop part)

17: pressing projection (first locking portion) 22: slide plate

24: small diameter roller (pressing part) 26: notch part

The present invention relates to a head mounting plate motion control apparatus of a tape recorder in which an operation of a trigger member for locking the head mounting plate to a non-regeneration position (standby position) is linked with an eject operation member.

Conventionally, when the head mounting plate has a trigger member for locking the head mounting plate to the non-regeneration position and the tape cassette is securely loaded at the regeneration position, the trigger member releases the stop of the non-regeneration position of the head mounting plate by the trigger member and moves the head mounting plate to the regeneration position. Background Art [0002] The head mounting plate motion control device for a tape recorder is known (see Japanese Patent Application Laid-Open No. 63-181130).

As the cassette moves to the play position, the ejector lever (eject operation member) moves to the ejectable operation state and is connected to the retention lever (first trigger member). If release of the play position is released and the cassette is not securely held at the play position after the release, the head mounting plate is held at the non-play position by the detection lever (second trigger member), and the tape cassette is firmly loaded at the play position. When the detection lever detects this, the detection lever rotates to release the non-regeneration position of the head mounting plate to move the head mounting plate to the regeneration position.

In such a conventional head mounting plate motion control device, the tape cassette is connected to the detection lever when the tape cassette moves to the regeneration position, and the detection lever rotates against the spring force.

Therefore, in order to ensure that the turning force by the spring of the detection lever can always be given to the cassette holder in the regeneration direction, the force resisting this force at the time of ejection operation must be applied to the ejection operation member. There was a problem that the eject operation force increases.

The present invention has been exemplified in the above circumstances, and an object thereof is to provide a head mounted plate operation control apparatus of a tape recorder in which the eject operation force is reduced with a simple configuration.

In order to achieve the above object, the present invention has a head mounting plate and a pressing unit mounted on the substrate to reciprocate between the regeneration position and the non-regeneration position, and further added to the regeneration position by a spring, and the reciprocating material ( A slide plate which is mounted in a movable manner and which moves from the eject position to the non-eject position in relation to the longitudinal movement of the tape cassette, and is mounted on the substrate so as to be forward and reverse in relation to the operation of the slide plate. The trigger member is provided with a trigger member which allows the head mounting plate to move to the non-regenerating position in response to the force of the spring at the time of rotation and permits movement of the head mounting plate to the regeneration position when rotating in the other direction. Has a first, a second locking portion, abutting portion, and a cutout portion, and the slide plate is located at an ejection position near a non-eject position. Until the movement, the contact of the contact portion is prevented from turning in the other direction so that the first and second stop portions maintain the locking function with respect to the head mounting plate, and the slide plate reaches near the non-eject position. When the contact portion faces the cutout portion, only the second locking portion maintains the locking function and then presses the connecting portion from the pressing portion while reaching the non-ejected position, so that the second locking portion also releases the locking function. When the slide plate is rotated in the other direction while inserting the pressing portion into the cutout portion and the slide plate moves from the non-eject position to the ejecting position, the first locking portion is pressed by the pressing portion which escapes the cutout portion and rotates in one direction. The head mounting plate is configured to return to the non-regeneration position by pressing.

When the slide plate is in the ejected position, the head member is retained in the non-regenerating position because the trigger member is stored in a state where the trigger member is rotated in one direction.

In this state, the head member is still non-regenerated because the trigger member is kept rotated in one direction even when the slide plate moves from the eject position to the vicinity of the non-eject position in relation to the tape cassette moving operation. It is locked in position.

As the slide plate reaches the non-eject position, the trigger member rotates in another direction, so that the head mounting plate moves to the regeneration position by the force of the spring. Furthermore, when the slide plate moves from the non-eject position to the eject position, the trigger member rotates in one direction, and thus the head mounting plate is pressed against the force of the spring and returned from the non-regenerating position to be locked at the corresponding position.

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

FIG. 1 is a plan view of a regenerated state of a tape recorder having a head-mounted plate motion control device of the present invention, in which FIG. 1 is a substrate, the upper surface of which is a tape drive motor 2, and one reel receiver 3a, 3b. ) And capstan shafts 4a and 4b are disposed, respectively. These reels 3a and 3b and the capstan shafts 4a and 4b are rotationally driven by the tape driving motor 2.

The head mounting plate 5 is attached to the upper surface of the board | substrate 1 by reciprocating material in arrow A, B direction (1st middle left-right direction).

The magnetic head 6 is provided on the upper surface of the head mounting plate 5. This magnetic head 6 is folded in the tape of the tape cassette (not shown) in the regeneration position in relation to the reciprocating motion of the head mounting plate 5. The head mounting plate 5 is added to the regeneration position side (arrow A direction) by the spring 7.

The spring 7 is composed of a torsion spring, and the annular coil portion 7a of the intermediate portion is hung on the top spring protrusion 8 of the substrate 1.

One end 7b of the spring 7 is supported by the spring recessed hole 9 of the head mounting plate 5, and the other end 7c is supported by the spring recessed hole 10 of the substrate 1, respectively.

The head mounting plate 5 is locked to the non-regenerating position by the trigger member 11 against the force of the spring 7.

The trigger member 11 is mounted on the upper surface of the substrate 1 as a forward and backward rotation material as the shaft 12.

The trigger member 11 is made of an elastomeric resin, and the first and second arm portions 13 and 14 are positioned at opposite positions by sandwiching the shaft 12 as shown in FIG. The 3rd arm part 15 which is located in one direction of the shaft 12, and protrudes in the substantially orthogonal direction with the 1st, 2nd arm parts 13 and 14 is provided.

A protruding portion (second locking portion) 16 protrudes integrally from the distal end surface of the first arm portion 13.

The protruding portion 16 becomes a flat rectangular flat surface 16a in which the central portion protrudes in the downward direction, and is perpendicular between the first edge portion, which is the tip of the flat surface 16a, and the lower surface of the first arm portion 13. It has become the side 16b.

Further, the first to third inclined surfaces 16c, 16d, and 16e are formed between the remaining second and third edge portions of the flat surface 16a and the lower surface of the first arm portion 13.

Moreover, the inner edge part of the 2nd arm part 14 is the connection part 14a.

Further, a flat weak circular pressing protrusion (first locking portion) 17 protruding in the vertical direction is integrally protruded from one end portion of the third arm portion 15.

In addition, an arc-shaped stopper protrusion 18 is integrally formed on the lower surface of the other end of the third arm 15.

Moreover, the thickness of the 2nd arm part 14 is set thicker than the thickness of the 1st, 3rd arm parts 13 and 15. FIG.

The flat surface 16a of the protrusion 16 is located slightly (about 0.3 cm) above the lower surface of the second arm 14.

The lower surface of the pressing projection 17 and the lower surface of the stopper projection 18 are at the same level as the lower surface of the second arm portion 14.

When the trigger member 11 is in the neutral position, the vertical surface 16b of the protruding portion 16 stops at the latching edge portion 19 of the distal end portion of the head mounting plate 5 by the locking material. The movement toward the regeneration position side of (5) is supported against the biasing force of the spring 7, and the head mounting plate 5 is stored in the regeneration position.

In addition, when the trigger member 11 is rotated in one direction (counterclockwise direction in the drawing) from the neutral position, the first arm portion 14 is caught by the first inclined surface 16c while being in contact with the upper surface of the head mounting plate 5. The elastic surface is displaced upward, and the vertical surface 16b is detached from the latching edge portion 19 so that the entire projecting portion 16 fits into the fitting hole 20 of the head mounting plate 5.

From this state, when the trigger member 11 is rotated in another direction (clockwise in the figure), the second inclined surface 16d facing the first inclined surface 16c is caught while being in contact with the surface of the head mounting plate 5. One arm 13 is elastically displaced upwards so that the entire protrusion 16 is separated from the fitting hole 20.

When the pressing projection 17 of the trigger member 11 is in the middle position, the pressing member 5a of the tip of the head mounting plate 5 is pressed in the direction of arrow B, and the head mounting plate 5 is urged with the spring 7. It resists the force and saves it in the regeneration position.

The trigger member 11 rotates forward and backward with respect to the operation of the eject lever (eject operation member) 21.

The eject lever 21 is mounted on the outer surface of the one side wall 1a of the substrate 1 in a reciprocating material in a direction orthogonal to the moving direction of the head mounting plate 5 (arrows C and D in the drawing).

The slide plate 22 which interlocks with this eject lever 21 at predetermined time is attached to the inner side surface of the one side wall 1a of the board | substrate 1. As shown in FIG.

The slide plate 22 moves from the eject position to the non-eject position (arrow C direction) in connection with the tape cassette's long motion.

On the inner side of the slide plate 22, one bracket 24, 25 is provided with coaxial rotating material by extending the bracket 23. As shown in FIG.

The upper roller (pressing part) 24 is smaller in diameter than the lower roller 25.

As for the upper diameter small roller 24, the roller contact part 15a of the 1st edge of the 3rd arm part 15 of the trigger member 11 contacts the roller contact part 14a of the 2nd arm part 14, respectively.

The large diameter roller 25 on the lower side is in contact with the inner side surface of one side wall of the substrate 1.

Moreover, the notch part 26 is formed between the edge part of the roller contact part 15a of the 3rd arm part 15, and the roller contact part 14a of the 2nd arm part 14. As shown in FIG.

When the slide plate 22 moves with the eject lever 21 to the eject position as much as possible, the small-diameter roller 24 abuts on the stopper protrusion 18, and the slide plate 22 further moves to the eject position (arrow C direction). Does not go to).

The eject lever 21 is added to the non-eject position side (arrow D direction) by the spring (not shown) and the slide plate 22 by the spring 27 as shown in FIG. 4 and FIG. . The hook 29 is generally protruded at the tip of the upper part of the slide plate 22 as shown in FIGS. 3 and 4.

As the latch 31 of the lock plate 30 abuts on this hook 29, the movement of the eject lever 21 and the slide plate 22 to the non-eject position is prevented against the force of the spring 27. do.

The lock plate 30 is provided as a rotating material on the lower side of the rotating plate 32 mounted on the upper surface of the substrate 1 with the vertical movement material.

The cassette holder 33 is disposed below the rotating plate 32 as the rotating material.

The cassette holder 33 holds the tape cassette, and has a tape cassette insertion opening 33a on one end face thereof.

When the tape cassette is inserted from the cassette holder insertion opening 33a at a predetermined position in the cassette holder 33, the pivoting plate 32 rotates downward integrally with the cassette holder 33 so that each reel of the tape cassette is rotated. The reel mats 3a and 3b are engaged with each other to be regenerated at the regeneration position.

In this tape cassette lengthening operation, as the hook 29 of the slide plate 22 is called at the gauge 31 of the lock plate 30, the eject lever 21 together with the slide plate 22 is connected to the spring 27. Move to non-eject position (arrow D direction) by force.

In this state, when the eject lever 21 is moved to the eject position (arrow C direction) against the biasing force of the spring 27, the rotating plate 32 rotates upward with the cassette holder 33 and the cassette holder 33 The cape cassette in the inside is automatically released outward from the cassette inlet opening 33a, and further, the hook 31 of the lock plate 30 is locked to the hook 29.

In addition, 34a, 34b in a 1st figure is a pinch roller which folds in the capstan side 4a, 4b.

Next, the operation of the head mounting plate operation control apparatus of the tape recorder of the above configuration will be described.

When the tape recorder is stopped, i.e., the tape cassette is not loaded at the playback position, as shown in FIG. 4, the pivoting plate 32 is in the ascending position together with the cassette holder 33 and the eject lever 21 and At the same time, the slide plate 22 is in an ejection position (arrow C direction movement limit position) as shown in FIG. 6 against the biasing force of the spring 27, and the small diameter roller 24 of the trigger member 11 The trigger member 11 is kept in a neutral state by being in contact with the roller wet contact portion 15a of the third arm portion 15.

As a result, the pressing projection 17 of the trigger member 11 presses the press part 5a of the head mounting plate 5 in the direction of arrow B so that the head mounting plate 5 resists the force of the spring 7. It is stored in the non-playback position.

At this time, the vertical surface 16b of the protruding portion 16 of the first arm portion 13 of the trigger member 11 opposes the locking delay portion 19 of the head mounting plate 5 with a slight upright.

In this state, when the tape cassette is inserted at a predetermined position in the cassette holder 33, the cassette holder 33 together with the pivoting plate 32 is lowered as shown in FIG. The reel is fitted to each of the reel receivers 3a and 3b and loaded at the regeneration position.

The slide plate 22 is joined with the spring 27 together with the eject lever 21 so that the hook 29 of the slide plate 22 is separated from the gage 31 of the lock plate 30 in connection with this long-term firewood. To the non-eject position side (arrow D direction).

As the slide plate 22 approaches the ejection position together with the eject lever 21, the small diameter holder 24 contacts the roller contact portion 15a of the second arm portion 15 of the trigger member 11. It is located at its stop as shown in FIG.

Since the roller wet contact portion 15a is in parallel with the movement axis of the small diameter roller 24 between the small diameter roller 24 and the end of the roller wet contact portion 15a in the state shown in FIG. The member 11 does not change to the state of FIG. 6, that is, the neutral body, and therefore the head mounting plate 5 is also stored in the non-regeneration position.

In the state of FIG. 7, the slide plate 22 moves together with the eject lever 21 in the direction of arrow D. As shown in FIG. 8, the small-diameter roller 24 cuts off the portion 26 of the trigger member 11. ), The movement stop of the head mounting plate 5 by the pressing projection 17, the small diameter roller 24, and the large diameter roller 25 toward the regeneration position side (arrow A direction) is released. The arrow A of the head mounting plate 5 is brought into contact with the protruding portion 16 of the first arm portion 13 of the trigger member 11 and the non-limiting delay portion 19 of the head mounting plate 5 by abutment on the vertical surface 16b. Movement in the direction is prevented and the head mounting plate 5 is naturally stored in the non-regeneration position.

In the meantime, the tape cassette is moved from the insertion position to the tape reproduction position.

In this state of FIG. 8, the slide plate 22 moves together with the eject lever 2l in the direction of arrow D to reach the non-eject position (arrow D direction moving limit position), and the small-diameter roller 24 causes the trigger member 11 to move. By opposing the cutout portion 14a of the second arm portion 14 of Fig. 2, the trigger member 11 is rotated counterclockwise from a neutral position as shown in FIG.

According to this rotation, the first inclined surface 16c of the protrusion 16 of the first arm 13 of the trigger member 11 is in contact with the upper surface of the head mounting plate 5 so that the first arm 13 is elastically upward. Displace.

Accordingly, the vertical surface 16b of the protrusion 16 is separated from the engaged portion 19 of the head mounting plate 5, and the flat surface 16a of the protrusion 16 is caught on the top surface of the head mounting plate 5. Becomes

Accordingly, the head mounting plate 5 is moved in the direction of arrow A by the force of the spring 7 to reach the regeneration position as shown in FIG. 1, and the magnetic head 6 is connected to the tape, and at the same time, one capstan One pinch roller 34a mediates the tape to contact the shaft, and the tape is rolled up from the lower reel receiver 3b side to the upper reel receiver 3a side during the first period, and is brought into a regenerated state.

In the regeneration state shown in FIG. 1, the entire projection 16 of the first arm 13 of the trigger member 11 fits into the fitting hole 2 of the head mounting plate 5, and the first arm 13 ) Elastic displacement is released.

Thus, when the slide plate 22 together with the eject lever 21 reaches the non-eject position, that is, the movement limit position in the direction of arrow D, the tape cassette is completely loaded at the tape regeneration position. By moving 5) to the regeneration position, the collision between the tape cassette and the magnetic head 6 can be reliably prevented.

In the regeneration state shown in FIG. 1, when the ejection lever 21 is pushed in the direction of arrow C against the force of the spring 27, the slide plate 22 together with the ejection lever 21 is the spring 28. It moves in the direction of arrow C, resisting the force of.

In response to this movement, the trigger member 11 is rotated clockwise during the first time by the small diameter roller 24 being in contact with the roller contact portion 15a of the third arm portion 15 of the trigger member 11.

In response to this rotation, the pressing projection 17 presses the press part 5a of the head mounting plate 5 in the direction of arrow B. Thus, the head mounting plate 5 is regenerated against the force of the spring 7. It is moved to the position axis.

When the trigger member 11 is in the neutral position, the head mounting plate 5 reaches the regeneration position, the magnetic head 6 is separated from the tape, and the pinch roller 34a is the capstan shaft 4a. Separate from.

In addition, as the trigger member 11 rotates, the second inclined surface 16d of the protruding portion 16 of the first arm portion 13 contacts the upper surface of the head mounting plate 5 so that the first arm portion 13 is elastically upward. Displaced so that the entire projection 16 is discharged from the fitting hole 20 and caught on the upper surface of the head mounting plate 5, and then the entire projection 16 is headed as the head mounting plate 5 reaches the non-regenerating position. It is separated from the upper surface of the snowboarding plate 5, and the vertical surface 16b of this protrusion part 16 opposes the locking delay part 19 of the headboard snowboarding 5 at some intervals.

When the slide plate 22 together with the eject lever 21 reaches the eject position (arrow C direction movement limit position), the cassette 33 together with the moving plate 32 is raised as shown in FIG. The tape cassette is automatically ejected from the cassette insertion hole 33a.

After the head mounting plate 5 returns to the non-regeneration position as described above, the cassette holder 33 is raised together with the rotating plate 32 to release the tape cassette. In this case, the collision between the tape cassette and the magnetic head 6 is prevented. It can certainly be prevented.

In addition, as shown in FIG. 1, when the head mounting plate 5 is moved to the non-regenerating position by performing rapid feeding or rewinding operation from the regeneration state, the third inclined surface 16e of the protrusion 16 is mounted on the head. The first arm portion 13 elastically displaces upward in contact with the upper surface of the plate 5.

As described above, the head mounting plate motion control device of the tape recorder according to the present invention is mounted to reciprocate between the regeneration position and the non-regeneration position on the board, and furthermore, the head mounting plate and the pressing portion added to the regeneration position side by a spring have the substrate. Mounted on the slide plate, which is mounted as a reciprocating material and moves from the ejected position to the non-ejected position in relation to the tape cassette movement, A trigger member for moving the head mounting plate to a non-regenerating position in response to a force of the spring at the time of rotation and for allowing movement of the head mounting plate to a regeneration position when rotating in another direction. Has a first, a second stop, abutment and a cutout, the slide plate being non-ejected at the eject position Rotation in the other direction is prohibited by the abutting portion of the contact portion until it moves near the position, so that the first and second locking portions maintain the locking function with respect to the head mounting plate, and the slide plate is in a non-eject position. When reaching the vicinity and facing the cutout portion, only the second locking portion maintains the locking function.

Thereafter, the contact portion is pressed by the pressing portion while reaching the non-ejected position, and the second locking portion also releases the locking function and rotates in the other direction while putting the pressing portion in the cutout portion, and the slide plate is again When moving from the ejected position to the ejected position is pressed by the pressing portion which escaped the cutout portion is rotated in one direction while the first stop portion is configured to return to the non-regeneration position by pressing the head mounting plate .

Therefore, the configuration is simple and the ejection operation force can be reduced.

Claims (1)

It is mounted on the substrate as a reciprocating motion between the regeneration position and the non-regeneration position, and is mounted on the substrate having a head mounting plate and a pressing portion, which is attached to the regeneration position side by a spring, and is also reciprocated in relation to the tape cassette moving operation. And the slide plate moving from the ejected position to the non-ejected position and capable of forward and reverse rotation with respect to the operation of the slide plate on the substrate, and the head mounting plate is resisted to the attaching force of the spring during rotation in one direction. In the head recorder plate motion control apparatus of a tape recorder having a trigger member to allow movement to the non-reproducing position and allow movement of the head seat plate to the regeneration position when rotating in the other direction, the trigger member comprising: a first trigger; Has a second stop, a connection and a cutout, the slide plate being non-ejected at the eject position Rotation in the other direction is prohibited by the connection of the connecting portion until the teeth move near the teeth, and the first and second locking portions maintain the locking function with respect to the head mounting plate, and the slide plate is near the non-eject position. When the connection part reaches the cutout, only the second stopper retains the locking function, and then the contacting part is pressed by the pressing part while reaching the non-ejected position. The locking function is released and rotated in the other direction while inserting the pressing portion into the cutout portion, and when the slide plate moves from the non-eject position to the ejecting position, it is pressed by the pressing portion which escaped the cutout portion and rotated in one direction. While the first stopper is configured to return the head mounting plate to the non-regeneration position by returning the tape. Head plate chakseol operation control device of the coder.