JP2831508B2 - Magnetic head device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic head device having improved running stability of a magnetic tape.

[0002]

2. Description of the Related Art FIG. 12 is a view showing a partial structure of a magnetic tape running system of a general VHS magnetic recording apparatus (VTR). In FIG. 12, reference numeral 1 denotes a cylindrical rotary cylinder. A magnetic head for recording / reproducing a video signal is embedded in a side surface of the rotary cylinder 1, and a magnetic tape 2 is pressed against the side surface of the rotary cylinder 1. By rotating the rotary cylinder 1 with the magnetic tape 2 running and operating the magnetic head, reading and writing of a video signal can be performed. On the magnetic tape introduction side of the rotary cylinder 1 (the left side of the rotary cylinder 1 in FIG. 12),
A support post 3 movably supported by a drive mechanism provided on the main body side of the magnetic recording apparatus is provided,
On the magnetic tape lead-out side of the rotary cylinder 1 (on the right side of the rotary cylinder 1 in FIG. 12), a support post 4 that performs the same operation as the support post 3 is provided. These support posts 3 and 4 pull out the magnetic tape 2 from the tape cassette housing the magnetic tape 2 and rotate the cylinder 1.
It is for pressing against.

Further, in the movement path of the magnetic tape 2, an introduction-side support post 5 is provided in front of the support post 3.
However, an outlet-side support post 6 is provided on the rear side of the support post 4. A composite magnetic head 7, a limiter post 8, a capstan 9, and a pinch roller 10 are sequentially provided on the moving path of the magnetic tape 2 behind the outlet-side support post 6.

[Problems to be solved by the invention]

In the traveling system described above, the rotary cylinder 1
Various measures have been taken to ensure that the magnetic tape 2 runs along the groove-like leads 1a formed on the side surfaces of the magnetic tape 2. One of the contrivances is that the upper flange 5a of the support post 5 and the upper flange 6a of the support post 6 regulate the position of the upper edge of the magnetic tape 2 to regulate the magnetic tape 2 and lead the rotary cylinder 1 The lower edge of the magnetic tape 2 is reliably pressed against 1a to improve the position regulation and running stability of the magnetic tape 2. If such a configuration is adopted, the configuration shown in FIG.
2, the position is regulated alternately up and down, so that the effect of stabilizing the running property of the magnetic tape 2 is exhibited.
In order to further stabilize the running property of the magnetic tape 2, the position of the lower edge of the magnetic tape 2 is regulated by the lower flange 8 a of the limiter post 8, and the position regulation acting on the magnetic tape 2 is determined by the movement path. Is adopted so as to be sequentially up and down.

However, it is desirable to stabilize the running property of the magnetic tape and omit the limiter post 8 from the viewpoint of reducing the number of parts of the magnetic recording apparatus and cost.

Incidentally, the composite magnetic head 7 is shown in FIG.
As shown in an enlarged manner in FIG. 1, the sound erasing head 12 and the sound control head 13 are integrated by adjoining them on their side portions.
4 is set up. The voice erasing head 12 has a magnetic core 12a formed on the upper front surface thereof for voice signal erasing.
The audio control head 13 has a magnetic core 13a for reading and writing audio signals on the upper front surface thereof, and a magnetic core 13b for reading and writing control signals on the lower front surface thereof.

Further, the composite magnetic head 7 having the above-mentioned structure is mounted on a chassis of a magnetic recording apparatus via a unit base 15 as shown in FIG. In FIG. 14, the mounting plate 16 to which the composite magnetic head 7 is mounted has a slightly different shape from that shown in FIG. Adjusting screws 17, 18, and 19 are screwed into three screw holes formed in the corners of the mounting plate 16, and these adjusting screws 17, 18, and 19 are also screwed into screw holes formed in the mounting plate 16. The mounting plate 16 is screwed together and mounted on the front side of the unit base 15 so as to be adjustable in position. The rear side of the unit base 15 is bent in a U-shape, and reference holes 20 and 21 are formed in that portion. The reference holes 20 and 21 are used when the unit base 15 is fixed to the chassis of the magnetic recording apparatus, and the reference holes 20 and 21 are inserted through reference axes erected on the chassis of the magnetic recording apparatus. By fixing the unit base 15, the composite magnetic head 7 can be attached to a magnetic recording device.

The adjustment of the azimuth angle of the composite magnetic head 7 with respect to the magnetic tape 2 and the adjustment of the angle (tilt angle) of the composite magnetic head 7 with respect to the width direction of the magnetic tape 2 are performed by using the unit base 15 of the magnetic recording apparatus. After fixing to the chassis, the adjustment screws 17, 18, and 19 are finely adjusted in the degree of screwing. However, these adjustment operations performed by operating the adjustment screws 17, 18, and 19 are extremely complicated. Therefore, it is desired to omit this operation.

Accordingly, the applicant of the present invention applied for a patent on January 21, 1992 for a composite magnetic head provided with a mounting frame having the structure shown in FIG.
The composite magnetic head used in FIG. 15 is the same as the composite magnetic head 7 described in the previous example. This composite magnetic head 7 has a rectangular frame 25 surrounding it and a lower part of the frame 25. Mounting frame 2 with integrated base 26
7 is fixed.

The frame 25 is for incorporating the voice erasing head 12 and the voice control head 13 which are adjacently integrated with each other, and a ceiling 30 supporting the upper portions of these heads and a lower portion of these heads. The substrate part 31 to support and the guide support | pillar 3 which supports the side part of these heads
2 and 32. A base 26 extends from the rear side of the substrate 31, and the base 26 has a plurality of through holes 26 a for mounting the chassis. A guide surface 32 for the magnetic tape is provided on the front side of the guide post 32.
a is formed, and above and below the guide post 32,
A restriction part 34 is formed by extending a part of the ceiling part 30 and the substrate part 31 and protrudes so as to sandwich the guide surface 32a from above and below.

If the composite magnetic head having the configuration shown in FIG. 15 is used, the height adjustment, azimuth adjustment, and tilt adjustment of the voice erasing head 12 and the voice control head 13 are accurately performed when incorporated into the mounting frame 27. If you do,
By inserting the reference axis of the chassis of the magnetic recording apparatus through the through hole 26 of the base 26 and accurately mounting the base 26 to the chassis, the above-described respective adjustment operations can be omitted when assembling the magnetic recording apparatus. This makes it possible to eliminate the need for adjustment when mounting the composite magnetic head. Therefore, the use of the composite magnetic head having such excellent characteristics has promoted the non-adjustment at the time of the mounting operation, and the above-mentioned adjustment of the vertical position of the magnetic tape 2 has made it possible to stabilize the running property and reduce the number of parts. It is hoped that it will be solved together.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a magnetic head device which realizes stabilization of magnetic tape running and non-adjustment of mounting of a composite magnetic head.

[0013]

According to the first aspect of the present invention, there is provided a rotary cylinder for recording or reproducing a video signal, in which a magnetic tape is introduced, and a magnetic tape of the rotary cylinder. An introduction-side support post that is provided on the introduction side of the rotary cylinder and guides the magnetic tape; an output-side support post that is provided on the output side of the rotary cylinder and guides the magnetic tape; and an output side that is provided on the output side of the output side support post. In a magnetic head device provided with a magnetic head for writing or reading a signal to or from a magnetic tape, a position regulating member for regulating a position of one side edge in a width direction of the magnetic tape is formed on the introduction-side support post; A lead portion for regulating the position of the other side in the width direction of the magnetic tape is formed on the magnetic tape. Together with the position regulating member for regulating is formed, the position regulating means for position regulating the other side edge portion in the width direction of the magnetic tape to the magnetic head it is attached
The magnetic head comprises a sound erasing head and a sound controller.
And a composite magnetic head comprising
Erase head and voice control head are less of them
And tilt one side forward or backward.
It is incorporated in a mounting frame, and the mounting frame is provided with a position regulating means.
When the magnetic tape slides, the magnetic tape in the inclined state is
Biases the magnetic tape toward the position regulating means side of the mounting frame
It is characterized by being made free. Claim 2
To solve the above-mentioned problem, Ming is required to record video signals or
Rotary cylinder for reproduction, into which magnetic tape is introduced
And a magnet provided on the side of the rotating cylinder where the magnetic tape is introduced.
Introducing support post for guiding the air tape and rotating cylinder
Outgoing side support provided on the outgoing side for guiding the magnetic tape
Post and this outlet side
Write or read signals to or from magnetic tape
In a magnetic head device provided with a magnetic head,
Adjust at least one of the inlet and outlet sides of the magnetic head.
An alignment post is erected and the introduction side support post is
A position ruler that regulates the position of one side edge of the magnetic tape in the width direction
A control member is formed, and the magnetic tape is attached to the rotating cylinder.
A lead part that regulates the position of the other side edge in the width direction is formed.
One side in the width direction of the magnetic tape
A position regulating member for regulating the position of the edge is formed.
And one side edge of the magnetic head in the width direction of the magnetic tape.
While a position regulating means for regulating the position of the part is provided,
Position the other edge in the width direction of the magnetic tape on the adjustment post
A position regulating member for regulating the magnetic head is formed.
Has a voice erasing head and a voice control head
A composite magnetic head, wherein the voice erasing head and the voice
Control head tilts at least one of them forward
Installed in the mounting frame by tilting it to the upright or backward position
The mounting frame is provided with position regulating means, and the magnetic
When the tape slides, the magnetic head is tilted by the magnetic head in the inclined state.
Characterized Rukoto such is freely urges the-loop to position regulating means side of the mounting frame

[0014] The invention according to claim 3 solves the above problem.
For recording or playback of video signals,
The rotating cylinder into which the loop is introduced and the magnetism of the rotating cylinder
Introduced on the tape introduction side to guide the magnetic tape
Side support post and a magnetic
Lead-out support post for guiding the air tape, and this lead-out support
A signal to the magnetic tape provided on the exit side of the holding post
With a magnetic head for writing or reading data
In the magnetic head device, a magnetic force is applied to the introduction-side support post.
A position regulating member that regulates the position of one side edge in the width direction of the tape
Is formed on the rotating cylinder, and the width of the magnetic tape
A lead portion for regulating the position of the other side edge of the
Place one side edge of the magnetic tape in the width direction on the outlet side support post.
A position regulating member for regulating the position is formed, and
Position the other edge of the magnetic tape in the width direction on the magnetic head.
A position restricting means for controlling the magnetic head.
Has a voice erasing head and a voice control head.
A composite magnetic head.
Control head is mounted on the mounting frame, and
The position regulating means and the tape guide of the magnetic tape are formed.
The sliding surface of the magnetic tape
Of the mounting frame is biased toward the position regulating means side of the mounting frame.
It is characterized by becoming. The invention according to claim 4 is the above-mentioned invention.
In order to solve the problem, it is used for recording or playback of video signals.
There is a rotating cylinder where the magnetic tape is introduced, and a rotating
Magnetic tape provided on the introduction side of the magnetic tape of the cylinder
Guide post on the introduction side and the exit side of the rotary cylinder
Outgoing side support post that guides the magnetic tape
And a magnetic tape provided on the outlet side of the outlet side support post.
To write or read signals to the loop
A magnetic head device provided with a magnetic head;
Adjustment post to at least one of
The support post is erected and a magnetic
A position regulating member that regulates the position of one side edge in the width direction of the tape
Is formed on the rotating cylinder, and the width of the magnetic tape
A lead portion for regulating the position of the other side edge of the
Place one side edge of the magnetic tape in the width direction on the outlet side support post.
A position regulating member for regulating the position is formed, and
Position one side edge of the magnetic tape in the width direction on the magnetic head.
Position adjusting means for controlling the
A position for regulating the position of the other side edge in the width direction of the magnetic tape.
A positioning member is formed, and the magnetic head
Composite magnet with head and voice control head
Head, and the voice erasing head and the voice controller
Head is incorporated in the mounting frame, and the magnetic tape is attached to the mounting frame.
The position regulating means and the tape guide are formed.
Slide the magnetic tape on the guide surface of the guide to the position of the mounting frame.
That an inclined surface that biases toward the
Features.

[0015]

In a magnetic tape traveling system provided with support posts and a magnetic head on both sides of a rotary cylinder for recording or reproducing video signals, the position of one side edge of the magnetic tape is regulated by the support posts on both sides, and the lead of the rotary cylinder is read. When the position of the other side edge of the magnetic tape is regulated by the portion, the position of the other side edge of the magnetic tape is regulated by pressing the other side edge of the magnetic tape toward one side edge side with a magnetic head provided behind the support post. A restricting action can be sequentially applied to one side and the other side of the magnetic tape along the traveling path, thereby increasing the traveling stability of the magnetic tape. By doing so, the regulation position of the magnetic tape can be balanced even if the limiter post provided on the lead-out side of the magnetic head in the conventional device is omitted.

An adjustment post is provided on both sides of the magnetic head in addition to the running system of the magnetic tape, so that the regulation position of the adjustment post and the regulation position of the magnetic head by the regulation means are directed in opposite directions to achieve balance. Then, this also makes it possible to balance the regulation position of the magnetic tape, and the running performance is improved. Furthermore, it is configured as described above.
When sliding the magnetic tape against the composite magnetic head,
Magnetic tape should be tilted forward or backward.
To the sliding surface or sound control
The magnetic tape slides along the sliding surface of the
As a result of being biased to move to the regulating means side, the magnetic tape
The edge of the loop is restricted. This makes it suitable for magnetic tapes.
Or both support posts along the path of the magnetic tape
Are positioned vertically up and down by both support posts and adjustment posts
Precise positioning of the running magnetic tape
And stabilize the running properties of the magnetic tape.
Wear. In addition, regulating the position of the edge of the magnetic tape itself
Precise positioning of magnetic tape, especially in the height direction
It is possible to stabilize the running performance. Furthermore,
Install the voice erasing head and voice control head on the mounting frame.
The azimuth angle is strictly defined when mounting and fixing
Keep this mounting frame correctly on the magnetic recording device.
If necessary, adjust the azimuth angle to the magnetic recording device.
There is no need to perform this after mounting, and the azimuth angle
Since the angle is optimal at the time of birth, it is necessary to delete the audio signal and
And writing and reading of control signals
The air quality is improved. This makes the composite magnetic head magnetic
The fine azimuth angle that was
No adjustment is needed.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a magnetic tape running system of a magnetic recording apparatus (VTR) incorporating an embodiment of the apparatus of the present invention. In FIG. 1, reference numeral 41 denotes a cylindrical rotary cylinder. A magnetic head for recording and reproducing video signals is embedded in the side surface of the rotary cylinder 41. The magnetic tape 42 is pressed against the side surface of the rotary cylinder 41 and the rotary cylinder 41 is moved while the magnetic tape 42 is running.
The video signal can be read / written by rotating the magnetic head and operating the magnetic head. The magnetic tape introduction side of the rotary cylinder 41 (the rotary cylinder 1 in FIG. 1)
The left side of the magnetic recording apparatus is provided with a moving post 43 movably supported by a drive mechanism provided on the main body side of the magnetic recording apparatus, and a magnetic tape lead-out side of the rotary cylinder 41 (the right side of the rotary cylinder 41 in FIG. 1). 2) is provided with a moving post 44 which performs the same operation as the moving post 43. These moving posts 43 and 44 are for pulling out the magnetic tape 42 from the tape cassette storing the magnetic tape 42 and pressing it against the rotary cylinder 41.

Further, in the movement path of the magnetic tape 42, an introduction-side support post 45 is provided in front of the movement post 43, and an extraction-side support post 46 is provided in the rear of the movement post 44. The magnetic tape 42
A composite magnetic head 47, a capstan 49, and a pinch roller 50 are sequentially provided on the rear side of the lead-out side support post 46 in the moving path of FIG.

In the above-mentioned traveling system, the upper flange (position regulation) of the support post 45 is used to ensure that the magnetic tape 42 travels along the grooved lead 41a formed on the side surface of the rotary cylinder 41. The position of the upper edge of the magnetic tape 42 is adjusted by the upper flange (position regulating member) 46a of the support post 46 and the upper edge of the magnetic tape 42, and the position of the upper edge of the magnetic tape 42 is adjusted.
The lower edge of the magnetic tape 42 is securely pressed against the lead 41a of the magnetic tape 42 to improve the position regulation and the running stability of the magnetic tape 42. By adopting such a configuration, the position of the magnetic tape 42 is regulated alternately up and down along the running path of the magnetic tape 42 as shown by oblique lines in FIG.

Further, in the structure of this embodiment, the support post 46
The composite magnetic head 47 provided on the rear side of the
A means for regulating the position of the lower edge of the magnetic tape 42 is added to improve the running stability of the magnetic tape 42. Hereinafter, this means will be described specifically.

FIG. 2 shows a first configuration example of a composite magnetic head provided with the above means. The composite magnetic head 47 of this example is shown in FIG.
Is a part of the composite magnetic head shown in FIG.

In the composite magnetic head 47, the sound erasing head 52 and the sound control head 53 are arranged as shown in FIG.
Are equivalent to the voice erasing head 12 and the voice control head 13 of the composite magnetic head shown in FIG. 5, the voice erasing head 52 has a magnetic core 52a for voice signal erasing formed on the upper front surface, and the voice control head 53 is A magnetic core 53a for reading and writing audio signals is provided on the upper front surface, a magnetic core 53b for reading and writing control signals is provided on the lower front surface, and a sliding surface 52c of the magnetic tape 42 is provided on the front surface side of the audio erasing head 52 shown in FIG. Are formed, and a sliding contact surface 53 c of the magnetic tape 42 is formed on the front side of the audio control head 53. These magnetic heads 52,
53 is fixed to a mounting frame 57 having a rectangular frame 55 surrounding them and a base 56 integrated below the frame 55.

The frame 55 is for incorporating the voice erasing head 52 and the voice control head 53 which are adjacent and integrated with each other. The ceiling 60 supporting the upper portions of these heads and the lower portion of these heads are provided. The substrate portion 61 to be supported and the guide posts 6 to support the side portions of these heads
2 and 62. A base 56 extends from the rear side of the substrate 61, and a plurality of through holes 56a for fixing the chassis are formed in the base 56. These through holes 56a are used to fix the base 56 to the chassis using a reference shaft erected on the chassis of the magnetic recording apparatus. A guide surface 62a for slidingly contacting the magnetic tape is formed on the front side of the guide column 62, and a part of the ceiling 60 is formed above the guide column 62 by extending a part of the ceiling portion 60a. A first restricting portion 64 protruding forward is formed, and a substrate portion 61 is provided below the guide post 62.
And a second restricting portion (position restricting means) 65 which is formed by extending a part of the first and protrudes forward of the guide surface 62a is formed.
A tape guide 66 is configured by the first restricting portion 64, the guide column 62, and the second restricting portion 65. The first regulating surface 64a is provided on the lower surface of the first regulating portion 64, and the second regulating portion 65
The second regulating surface 65a is formed on the upper surface of each.

Further, the guide surface 62a is
The corner 62b of the guide surface 62a is formed into a curved surface in consideration of the sliding resistance of the magnetic tape 42. Further, as described above, the interval between the vertically opposing regulating portions 64 and 65 is
When the lower edge of the magnetic tape 42 is brought into contact with the regulating surface 65a on the upper surface of the lower second regulating portions 65, 65 in FIG. Is positioned. As shown in FIG. 2, the respective sliding surfaces 52c and 53c of the voice erasing head 52 and the voice control head 53 are inclined forward so that their upper sides protrude forward from their lower sides. I have. The forward tilt angle in this case may be any number of times, for example, about 30 minutes is sufficient, but is exaggerated in FIG.

On the other hand, a projection-like first positioning portion 68 is formed between the first regulating portions 64 and 64 and on the upper front side of the voice control head 53 by extending the ceiling portion 60 downward. A protruding second positioning portion 69 is formed between the two regulating portions 65, 65, and extends forward from the substrate portion 61 at a lower front side of the audio control head 53. The work of attaching the voice erasing head 12 and the voice control head 13 to the frame 55 can be performed accurately when the composite magnetic head 47 is manufactured by an automatic machine.

Next, the case where the composite magnetic head 47 configured as described above is attached to a magnetic recording apparatus, and the case where the magnetic tape 42 is slid with respect to the composite magnetic head 47 after this attachment will be described.

The composite magnetic head 4 configured as described above
Numeral 7 denotes a predetermined position on the chassis of the magnetic recording apparatus by means of inserting a plurality of reference shafts erected on the chassis of the magnetic recording apparatus into the through holes 56a of the base 56 and screwing them. To be fixed exactly. If the configuration of the composite magnetic head 47 as described above is adopted, when the magnetic tape 42 is run while being pressed against the rotary cylinder 41, the support post 45 and the support post 46, as shown by oblique lines in FIG. Although the position of the upper edge of the magnetic tape 42 is regulated, the position of the lower edge of the magnetic tape 42 can be regulated by the rotary cylinder 41 and the composite magnetic head 47.

That is, when the magnetic tape 42 is slid with respect to the composite magnetic head 47 configured as described above, the magnetic tape 42 slides along the guide surfaces 62a, 62a, and at the same time, the sound in the forwardly inclined posture. Sliding surface 5 of erase head 52
2c and the sliding surface 53c of the audio control head 53, the magnetic tape 42 is pressed so as to move to the lower edge thereof, so that the lower edge of the magnetic tape 42 is moved to the second regulating portion. It slides while being pressed against 65, 65 regulation surfaces 65a. That is, the position of the lower edge of the magnetic tape 42 is regulated. Thereby, the support post 45, the rotary cylinder 41, and the support post 46 shown in FIG.
2 and the regulating surface 65a shown in FIG. 2, the position of the magnetic tape 42 can be regulated up and down along the movement path of the magnetic tape 42, so that the running magnetic tape 42 can be accurately positioned and the traveling property of the magnetic tape 42 can be stabilized. Can be. In addition, by regulating the position of the lower edge of the magnetic tape 42 by the regulating surface 65a, the positioning of the magnetic tape 42, particularly in the height direction, can be accurately performed, and the traveling performance can be stabilized. When the magnetic tape 42 is to be displaced in the vertical direction from each of the above-described restriction positions, the magnetic tape 4 in contact with the flange portions 45a, 46a, the lead portion 41a, and the second restriction surface 65a.
The tension is applied to each of the two edge portions, and the edge portions are pressed and regulated, and the magnetic tape 42 is held at a predetermined height position by the pressure regulating force.

On the other hand, the composite magnetic head 4 having the structure shown in FIG.
In the case of 7, the effects described below are also exerted. First,
In the magnetic gap of the magnetic core 53a of the sound erasing head 53, a surface perpendicular to a plane in contact with the sliding contact surface 53c and regulating surfaces 65a of the second regulating portions 65, 65 on both sides of the magnetic head.
The line connecting 65a is vertical. This allows
The lower edge of the magnetic tape 42 runs along the regulating surface 65a, and the magnetic gap between the magnetic core 53a and the magnetic tape 4a.
Since the magnetic tape runs so that the running direction of the magnetic tape is perpendicular to the running direction of the magnetic tape 42, the running of the magnetic tape 42 is extremely stabilized. If the audio erasing head 52 and the audio control head 53 are attached and fixed to the frame 55 of the attachment frame 57 and the azimuth angle is strictly defined and attached, the azimuth angle should be adjusted after the attachment to the magnetic recording apparatus. Since the azimuth angle does not need to be set and the azimuth angle becomes an optimum angle at the time of magnetic recording / reproduction, the magnetic characteristics related to the erasure of the audio signal and the writing and reading of the control signal are improved. This eliminates the need for fine adjustment of the azimuth angle performed after attaching the composite magnetic head 47 to the magnetic recording apparatus.

Regarding the tilt angle, the magnetic tape 4
The angle of each of the sliding surfaces 52c, 53c with respect to the width direction of the magnetic tape 42 is set to a predetermined value (the lower edge of the magnetic tape 42 is
Is set to an angle sufficient to travel along the regulating surface 65a), and the tilt angle is eliminated, so that it is not necessary to adjust the tilt angle after the composite magnetic head 47 is mounted on the magnetic recording apparatus. As described above, after the composite magnetic head 47 is mounted on the magnetic recording apparatus, any of the azimuth adjustment, the tilt adjustment, and the magnetic tape height adjustment can be omitted, and the composite magnetic head 47 is mounted on the magnetic recording apparatus. In this case, labor for fine adjustment can be saved.

FIG. 3 shows a second example of the configuration of the composite magnetic head provided behind the support post 46 in the running system of the magnetic tape 42 shown in FIG. In the composite magnetic head 70 of the second configuration example, the same components as those of the composite magnetic head 47 of the first configuration example are denoted by the same reference numerals, and description thereof will be omitted. In the composite magnetic head 70 of this example, the magnetic tape 4
The guide surface 62d formed on the running side of the head 2 is in a forwardly inclined position with its upper side tilted forward (toward the moving path of the magnetic tape 42) from its lower side. The sliding surface 52c and the sliding surface 53c of the audio control head 53 are configured to be vertically oriented with respect to the substrate portion 61.

By adopting the structure shown in FIG. 3, a downward force can be applied to the running magnetic tape 42 by the guide surfaces 62d, 62d. The position can be regulated by pressing the second regulating surfaces 65a, 65a. In this example, since the sliding surface 52c of the audio erasing head 52 and the sliding surface 53c of the audio control head 53 are perpendicular to the substrate 61, a special force is applied to the magnetic tape 42 in the vertical direction. There is no grant. As for other effects, the same effects as those of the first configuration example can be obtained.

FIG. 4 shows a third configuration example of a composite magnetic head provided behind the support post 46 in the running system of the magnetic tape 42 shown in FIG. In the composite magnetic head 75 of the third configuration example, the same components as those of the composite magnetic head 47 of the first configuration example are denoted by the same reference numerals, and description thereof will be omitted. In the composite magnetic head 75 of this example, the guide surface 62d formed on the guide post 62 on the side of the traveling path of the magnetic tape 42 has its upper part tilted forward (toward the moving path of the magnetic tape 42) from its lower part. And the sliding surface 52c of the voice erasing head 52 and the sliding surface 53c of the voice control head 53 both have their upper parts tilted forward more than their lower parts. Has become. Then, the sliding surfaces 52c, 53 of the respective heads 52, 53
c and the guide surfaces 62d, 62d are both inclined forward, the respective sliding surfaces 52c, 53c with respect to the magnetic tape 42.
In order for the sliding surfaces 52c, 53c
Is preferably greater than the inclination angle of each guide surface 62d.

By employing the structure shown in FIG. 4, a downward force can be applied to the running magnetic tape 42 by both the guide surfaces 62d, 62d and the sliding surfaces 52c, 53c. The lower edge of the magnetic tape 42
The position can be reliably regulated by pressing the regulating surfaces 65a, 65a. As for other effects, the same effects as those of the first configuration example can be obtained.

FIG. 5 shows a fourth configuration example of the composite magnetic head provided on the rear side of the support post 46 in the running system of the magnetic tape 42 shown in FIG. In the composite magnetic head 75 of the fourth configuration example, the same components as those of the composite magnetic head 47 of the first configuration example are denoted by the same reference numerals, and description thereof will be omitted. In the composite magnetic head 80 of this example, the guide surface 62e formed on the guide column 62 on the running side of the magnetic tape 42 is oriented perpendicular to the substrate 61, and the sliding of the sound erasing head 52 is performed. Both the surface 52c and the sliding surface 53c of the audio control head 53 are configured to be perpendicular to the substrate 61. And the guide surface 62
At the top of e, an inclined pressing surface 62f is formed.

By adopting the structure shown in FIG. 5, the pressing surface 62 of each of the guide posts 62, 62 is applied to the running magnetic tape 42.
f contacts and applies a downward force to the magnetic tape 42, so that the lower edge of the magnetic tape 42 is moved to the second regulating surfaces 65a, 65a.
And the position can be reliably regulated. As for other effects, the same effects as those of the first configuration example can be obtained.

FIG. 6 shows another example of a magnetic tape running system of a magnetic recording apparatus (VTR) incorporating another embodiment of the apparatus of the present invention. In FIG. 6, reference numeral 41 denotes a cylindrical rotary cylinder. As shown in FIG. 1, moving posts 43 and 44 and supporting posts 45 and 46 are provided around the rotary cylinder 41 in the same manner as the running system shown in FIG. A composite magnetic head 90, a capstan 49, and a pinch roller 50 are sequentially provided.
In this embodiment, a first adjustment post 88 is provided between the composite magnetic head 90 and the support post 46, and a second adjustment post 89 is provided between the composite magnetic head 90 and the capstan 49. Have been.

At the lower ends of the posts 88 and 89, flange portions (position regulating members) 88a and 89 are provided, respectively.
a is formed so that the position of the lower edge of the magnetic tape 42 can be regulated, and the composite magnetic head 90 is provided with means for regulating the position of the upper edge of the magnetic tape 42. The running property of the magnetic tape 42 is stabilized. That is, in this embodiment, as shown by hatching in FIG.
The upper edge of the magnetic tape 42 is regulated by the position regulating members of the support posts 45 and 46 and the urging means of the composite magnetic head 90, and the lead 41a of the rotary cylinder 41 and the adjustment post 8 are adjusted.
8 and 89 regulate the lower edge of the magnetic tape 42 to stabilize the running property of the magnetic tape 42.

The means for regulating the position of the magnetic tape 42 in this example will be specifically described below. FIG.
Is the first of the composite magnetic head provided on the rear side of the adjustment post 88 in the running system of the magnetic tape 42 shown in FIG.
2 shows a configuration example. In the composite magnetic head 90 of the first configuration example of the traveling system, the same components as those of the previously described composite magnetic head 47 of the first configuration example shown in FIG. Omitted. In the composite magnetic head 90 of this example, the sliding surface 52c of the sound erasing head 52 and the sliding surface 53 of the sound control head 53
c and is behind their lower in a state of protruding to the front side than those of the upper (moving path of the magnetic tape 42)
It is inclined to the down state . Other configurations are the same as those of the composite magnetic head 47 shown in FIG.

By adopting the structure shown in FIG. 7, the sliding surfaces 52c, 53c inclined with respect to the running magnetic tape 42.
A force is applied upward to the magnetic tape 42 by using
The upper edge of the magnetic tape 42 can be regulated by pressing the upper edge of the magnetic tape 42 against the first regulating surfaces 64a, 64a. Therefore, in this example, the first restricting portions 64 constitute a position restricting means. Other effects are shown in FIG.
The same effect as that of the first configuration example shown in FIG.

FIG. 8 shows a second configuration example of the composite magnetic head provided on the rear side of the adjustment post 88 in the running system of the magnetic tape 42 shown in FIG. In the composite magnetic head 91 of the second configuration example of the traveling system, the composite magnetic head 7 of the second configuration example of the traveling system shown in FIG.
The same components as those of 0 are denoted by the same reference numerals, and their description is omitted. In the composite magnetic head 91 of this example, the guide surface 62g formed on the guide post 62 on the running side of the magnetic tape 42 projects its lower part forward (toward the moving path side of the magnetic tape 42) from its upper part. And the voice erasing head 5
The second sliding surface 52c and the sliding surface 53c of the audio control head 53 are configured to be perpendicular to the substrate portion 61.

By employing the structure shown in FIG. 8, an upward force can be applied to the running magnetic tape 42 by the guide surfaces 62g, 62g. By pressing against the first regulating surfaces 64a, 64a, the position of the upper edge of the magnetic tape 42 can be regulated. In this example, the sliding surface 52c of the voice erasing head 52 and the sliding surface 53c of the voice control head 53 are used.
Is perpendicular to the substrate portion 61, so that no special force is applied to the magnetic tape 42 in the vertical direction. As for other effects, the same effects as those of the first configuration example can be obtained.

FIG. 9 shows a third configuration example of a composite magnetic head provided on the rear side of the adjustment post 88 in the running system of the magnetic tape 42 shown in FIG. In the composite magnetic head 92 of the third configuration example of the traveling system, the composite magnetic head 7 of the third configuration example of the traveling system shown in FIG.
The same components as those in 5 are denoted by the same reference numerals, and description of those portions will be omitted. In the composite magnetic head 92 of this example, the guide surface 62h formed on the guide post 62 on the running side of the magnetic tape 42 makes its lower part protrude forward (toward the moving path side of the magnetic tape 42) from its upper part. And the sliding surface 52c of the voice erasing head 52 and the sliding surface 53c of the voice control head 53 have their lower portions protruding toward the moving path side of the magnetic tape 42, and are tilted. Has become.
When the sliding surfaces 52c and 53c of each of the heads 52 and 53 and the guide surfaces 62h and 62h are both provided at an angle, the sliding surfaces 52c and 53c are required to sufficiently contact the magnetic tape 42. It is preferable that the inclination angle of each sliding surface 52c, 53c is larger than the inclination angle of each guide surface 62h, 62h.

By employing the structure shown in FIG. 9, an upward force can be applied to the running magnetic tape 42 by both the guide surfaces 62h, 62h and the sliding surfaces 52c, 53c. The upper edge of the magnetic tape 42
The position can be reliably regulated by pressing the regulating surfaces 64a, 64a. As for other effects, the same effects as those of the first configuration example can be obtained.

FIG. 10 shows a fourth configuration example of the composite magnetic head provided behind the adjustment post 88 in the running system of the magnetic tape 42 shown in FIG. In the composite magnetic head 93 of the fourth configuration example of the traveling system, the same components as those of the composite magnetic head 80 of the fourth configuration example of the traveling system described above shown in FIG. The description of the part is omitted.

In the composite magnetic head 93 of this example,
A guide surface 62i formed on the running side of the magnetic tape 42 in the guide post 62 is vertically oriented with respect to the substrate portion 61, and a sliding surface 52c of the sound erasing head 52 and a sliding surface of the sound control head 53 Each of the surfaces 53c is configured to be perpendicular to the substrate unit 61. An inclined pressing surface 62j is formed at the bottom of the guide surface 62i.

By employing the structure shown in FIG. 10, the pressing surfaces 62j and 62j contact the running magnetic tape 42 and apply an upward force to the magnetic tape 42.
The position of the upper edge portion 2 can be reliably regulated by contacting the first regulation surfaces 64a, 64a. As for other effects, the same effects as those of the first configuration example can be obtained.

FIG. 11 shows an example of a magnetic tape running system of a magnetic recording apparatus (VTR) incorporating a further embodiment of the apparatus of the present invention. In FIG. 11, reference numeral 41 denotes a cylindrical rotary cylinder. Around the rotary cylinder 41, like the traveling system shown in FIG.
A composite magnetic head 90, a capstan 49, and a pinch roller 50 are sequentially provided along the moving path of the magnetic tape 42. In this embodiment, the composite magnetic head 9
The first adjustment post 88 between the zero and the support post 46 is omitted, and only the second adjustment post 89 is provided between the composite magnetic head 90 and the capstan 49.

A flange (position regulating member) 89a is formed at the lower end of the second adjusting post 89 so as to regulate the position of the lower edge of the magnetic tape 42. The composite magnetic head 95 is provided with a means for regulating the position of the upper edge of the magnetic tape 42, thereby stabilizing the running property of the magnetic tape 42.
That is, in this embodiment, the upper edge of the magnetic tape 42 is restricted by the flange 45a of the support post 45, the flange 46a of the support post 46, and the pressing restricting means of the composite magnetic head 90, as shown by hatching in FIG. , Rotating cylinder 41
The lower edge of the magnetic tape 42 is regulated by the lead 41a and the flange 89a of the adjustment post 89, and the running property of the magnetic tape 42 is stabilized. As the composite magnetic head 95 used in this traveling system, the composite magnetic heads 90, 91, 92, 93 used in the preceding traveling system may be used as appropriate. However, since the upper edge of the magnetic tape 42 is regulated by the support post 46 and the upper edge of the magnetic tape 42 is subsequently regulated by the composite magnetic head 95, the total of these regulating forces is the second.
Is preferably designed so as to be balanced with the adjustment post 89 of FIG. For this, the inclination of each part of the composite magnetic head 95 is made smaller than that of the previous example, and the second adjustment post 8 is formed.
9 may be strengthened. By adjusting the regulating force in this manner, the running property of the magnetic tape 42 can be stabilized.

In each of the above embodiments, the tape guides 66, 66 are provided on both sides of the heads 52, 53 along the running path of the magnetic tape 42. However, the tape guides 66 are provided on both sides of the heads 52, 53. You may provide in either one. Furthermore, although the adjustment posts are provided on both sides of the composite magnetic head, either one may be used. In the above-described embodiment, the magnetic head combining the sound erasing head 53 and the sound control head 53 is mounted on the mounting frame 57.
It is a matter of course that one of the three units may be fixed to the mounting frame 57. Further, in the above-described embodiment, the configuration in which the tape guide 66 is integrated with the mounting frame 57 is adopted, but these may be separate objects. In each of the above-described embodiments, the configuration has been described in which the upper edge portion and the lower edge portion are respectively pressed along the traveling path of the magnetic tape 42.
2 The upper and lower edges of the upper and lower edges may be reversed,
Further, the magnetic tape 4 may be used in accordance with the insertion direction of the tape cassette.
In the magnetic recording apparatus configured to move the magnetic tape 42 in the vertical direction, the upper edge and the lower edge of the magnetic tape 42 may be the right edge and the left edge, or the left edge and the right edge. There is also.

[0051]

As described above, according to the present invention, in a magnetic tape traveling system in which a support post and a magnetic head are provided on both sides of a rotary cylinder for recording or reproducing video signals, the magnetic tape is supported by the support posts on both sides. Since the position of one side edge is regulated and the position of the other side edge of the magnetic tape is regulated by the lead portion of the rotating cylinder, the position of the other side edge of the magnetic tape is regulated by the magnetic head provided behind the support post. In addition, the pressing force can be applied to one side and the other side of the magnetic tape in order, thereby improving the running stability of the magnetic tape. Further, in this case, the restriction position of the magnetic tape can be balanced even if the limiter post conventionally provided behind the magnetic head is omitted, so that the number of parts can be reduced. Can,
There is an effect that it can be obtained at lower cost than the conventional device. Furthermore, for the composite magnetic head configured as described above,
When the magnetic tape slides, the magnetic tape is tilted forward.
Slip of the tilting sound erasing head in the forward or backward position
Along the moving surface or the sliding surface of the voice control head
Move the magnetic tape to the position regulating means side as it slides
As a result, the edge of the magnetic tape can be
Wear. This moves the magnetic tape relative to the magnetic tape.
Along the path, both support posts and mounting frame
Position of both sides in the width direction of the magnetic tape
To accurately position the running magnetic tape
The running property of the magnetic tape can be stabilized. Also,
By controlling the position of the edge of the magnetic tape,
Accurate positioning of the tape, especially in the height direction
It is possible to stabilize running performance. Furthermore, sound is attached to the mounting frame.
Attach the erase head and voice control head and secure
Strictly define the azimuth angle when installing
If the mounting frame is correctly attached to the magnetic recording device
For example, adjust the azimuth angle after attaching it to a magnetic recording device.
It is not necessary to do this, and the azimuth angle is
To achieve the optimal angle, so that the audio signal can be
Magnetic characteristics related to writing and reading of roll signals
Up. This allows the composite magnetic head to be used in a magnetic recording device.
The azimuth angle fine adjustment work that was performed after installation
Become useless.

According to the present invention, there is provided a magnetic tape traveling system in which a support post and a magnetic head are provided on both sides of a rotary cylinder for recording or reproducing a video signal. The position is regulated, and the position of the other side edge of the magnetic tape is regulated by the lead portion of the rotary cylinder. At least one of the two sides of the magnetic head is provided with an adjusting post, and the regulating position of the adjusting post by the position regulating member and the position of the magnetic head are adjusted. If the balance is made so that the position regulation by the pressing regulation force is directed in the opposite direction, the regulation position of the magnetic tape can also be balanced by this, whereby the running stability of the magnetic tape can be enhanced. .
Further, the composite magnetic head configured as described above has a magnetic
When sliding the magnetic tape, the magnetic tape must be tilted forward.
Sliding surface of inclined sound erasing head in inclined or backward position
Or slide along the sliding surface of the voice control head
So that the magnetic tape moves to the position
As a result, the edge of the magnetic tape is
You. This allows the magnetic tape to move relative to the magnetic tape.
Along the road, both support posts, adjustment posts and mounting frame
The position can be regulated in order by the control means, so the magnetism during running
The tape can be positioned accurately and the magnetic tape
Behavior can be stabilized. Also, the edge of the magnetic tape
Position of the magnetic tape itself
Positioning in the vertical direction
Can be stabilized. Next, the voice erasing head or voice
Instead of tilting the trawl head,
The tape guide provided on the frame is provided with an inclined surface.
To attach the sliding magnetic tape to the mounting frame
Force to regulate the position of the edge of the magnetic tape.
it can. Even in this configuration, the magnetic tape is moved along its moving path.
Alternately along both sides by means of both support posts and position regulating means.
Alternatively, place the magnetic tape on both sides of the
Position is regulated by the holding post, adjustment post and position regulating means.
Can stabilize the running property of the magnetic tape.
it can.

[Brief description of the drawings]

FIG. 1 is a configuration diagram showing a first embodiment of a magnetic tape traveling system provided with a magnetic head device according to the present invention.

FIG. 2 is a perspective view of a first configuration example of a composite magnetic head incorporated in the apparatus shown in FIG.

FIG. 3 is a perspective view of a second configuration example of the composite magnetic head incorporated in the apparatus shown in FIG.

FIG. 4 is a perspective view of a third configuration example of the composite magnetic head incorporated in the apparatus shown in FIG.

FIG. 5 is a perspective view of a fourth configuration example of the composite magnetic head incorporated in the apparatus shown in FIG. 1;

FIG. 6 is a configuration diagram showing a second embodiment of a magnetic tape traveling system including a magnetic head device according to the present invention.

FIG. 7 is a perspective view of a first configuration example of a composite magnetic head incorporated in the apparatus shown in FIG. 6;

FIG. 8 is a perspective view of a second configuration example of the composite magnetic head incorporated in the device shown in FIG. 6;

FIG. 9 is a perspective view of a third configuration example of the composite magnetic head incorporated in the apparatus shown in FIG. 6;

FIG. 10 is a perspective view of a fourth configuration example of the composite magnetic head incorporated in the apparatus shown in FIG. 6;

FIG. 11 is a configuration diagram showing a third embodiment of a magnetic tape traveling system provided with a magnetic head device according to the present invention.

FIG. 12 is a configuration diagram showing an example of a magnetic tape traveling system of a conventional device.

FIG. 13 is a perspective view showing one configuration example of a conventional composite magnetic head.

FIG. 14 is a perspective view showing an example of an attached state of a conventional composite magnetic head.

FIG. 15 is a perspective view showing an example of a mounting frame provided with a composite magnetic head.

[Explanation of symbols]

41 rotating cylinder, 41a lead portion, 42 magnetic tape, 43, 44 moving post, 45, 46 support post, 45a, 46a flange portion (position regulating member), 47, 70, 75, 80, 90, 91, 92, 93
Composite magnetic head, 52 sound erasing head, 52a magnetic core, 53 sound control head, 53a magnetic core, 62 guide support, 62a, 62d, 62e, 62g, 62h, 62i,
Guide surface, 64 first regulating portion (position regulating means), 64a first regulating surface, 65 second regulating portion (position regulating device), 65a second regulating surface, 66 tape guide, 88, 89 adjusting post, 88a, 89a Flange (position regulating member),

Claims (4)

(57) [Claims] 1. An apparatus for recording or reproducing a video signal,
A rotating cylinder into which the magnetic tape is introduced, an introduction side support post provided on the introduction side of the magnetic tape of the rotation cylinder to guide the magnetic tape, and an exit side support provided on the exit side of the rotation cylinder to guide the magnetic tape. A magnetic head device comprising: a post; and a magnetic head provided on a lead-out side of the lead-out side support post to write or read a signal to / from a magnetic tape. A position regulating member for regulating the position of the magnetic tape is formed, a lead portion for regulating the position of the other side edge of the magnetic tape in the width direction is formed on the rotary cylinder, and the lead-out side support post is formed with one end in the width direction of the magnetic tape. A position regulating member for regulating the position of the side edge is formed, and a position for regulating the position of the other side edge in the width direction of the magnetic tape on the magnetic head. Ri Na regulating means is attached, said magnetic head voice erasing head and a voice co
Control head and a composite magnetic head,
The voice erasing head and the voice control head are
At least one of them is tilted forward or backward.
The mounting frame is tilted and incorporated into the mounting frame.
Control means is provided, and when the magnetic tape slides,
Positioning of the mounting frame on the magnetic tape by the magnetic head in the state
The magnetic head device according to claim Rukoto such is freely biased in unit side. 2. For recording or reproducing a video signal,
A rotating cylinder into which the magnetic tape is introduced, an introduction side support post provided on the introduction side of the magnetic tape of the rotation cylinder to guide the magnetic tape, and an exit side support provided on the exit side of the rotation cylinder to guide the magnetic tape. A post and a magnetic head device provided on a lead-out side of the lead-out side support post and writing or reading a signal to / from a magnetic tape, wherein the magnetic head device is adjusted to at least one of an introduction side and a lead-out side of the magnetic head. A post is erected, and a position regulating member for regulating the position of one side edge of the magnetic tape in the width direction is formed on the introduction side support post, and the other side edge of the magnetic tape in the width direction is formed on the rotary cylinder. A lead portion for regulating the position of the magnetic tape is formed, and a position regulating member for regulating the position of one side edge in the width direction of the magnetic tape is formed on the lead-out side support post. And a position regulating means for regulating the position of one side edge of the magnetic tape in the width direction is attached to the magnetic head, and the other side edge of the magnetic tape in the width direction is positioned on the adjustment post. Ri Na position regulating member for regulating is formed, the magnetic heads
Has a voice erasing head and a voice control head
A composite magnetic head, wherein the voice erasing head and the voice
Control head tilts at least one of them forward
Installed in the mounting frame by tilting it to the upright or backward position
The mounting frame is provided with the position regulating means,
When the magnetic tape slides, the magnetic head in the inclined state
The magnetic tape can be urged toward the position regulating means of the mounting frame.
Rukoto such Te magnetic head device according to claim. 3. A method for recording or reproducing a video signal,
Rotating cylinder into which magnetic tape is introduced, and rotating cylinder
To guide the magnetic tape
The support post on the introduction side and the
Guide post that guides the magnetic tape
It is provided on the exit side of the exit side support post and is
Magnetic head for writing or reading signals
In the magnetic head device provided with one side edge of the magnetic tape in the width direction of the introduction side support post
A position regulating member for regulating the position of the rotating cylinder is formed.
Position the other edge of the magnetic tape in the width direction.
Leads are formed, and a magnetic
A position regulating member that regulates the position of one side edge in the width direction of the loop
Formed on the magnetic head and the magnetic tape
Position regulating means for regulating the position of the other side in the width direction of the
The magnetic head is combined with an audio erasing head and an audio core.
Control head and a composite magnetic head,
The voice erasing head and the voice control head are attached to a mounting frame.
And the position restricting means and the magnetic tape are mounted on the mounting frame.
The tape guide of the tape guide is formed.
Slide the magnetic tape on the mounting surface on the side of the mounting frame
The magnetic head device according to claim Rukoto such being inclined surface for urging the formed. 4. It is for recording or reproducing a video signal,
Rotating cylinder into which magnetic tape is introduced, and rotating cylinder
To guide the magnetic tape
The support post on the introduction side and the
Guide post that guides the magnetic tape
Against the magnetic tape provided on the discharge side of the exit side support post
Magnetic head for writing or reading signals
A magnetic head device provided with at least one of an introduction side and an exit side of the magnetic head.
The adjustment post is set up at the
Position that regulates one side edge of the magnetic tape in the width direction
A positioning member is formed, and the magnetic tape is attached to the rotating cylinder.
Leads are formed to regulate the position of the other edge in the width direction of the loop
The support post on the outlet side is aligned with the width direction of the magnetic tape.
A position regulating member for regulating the position of the side edge is formed.
And one side edge of the magnetic head in the width direction of the magnetic tape.
While a position regulating means for regulating the position of the part is provided,
Position the other edge in the width direction of the magnetic tape on the adjustment post
A position regulating member for regulating the magnetic head is formed.
Has a voice erasing head and a voice control head
A composite magnetic head, wherein the voice erasing head and the voice
The control head is built into the mounting frame, and
The position regulating means and the tape guide of the magnetic tape are formed.
The sliding surface of the magnetic tape
Of the mounting frame is biased toward the position regulating means side of the mounting frame.
A magnetic head device comprising: