JPH07282427A - Magnetic head device and magnetic tape traveling system - Google Patents

Abstract

PURPOSE:To unnecessitate azimuth adjustment, height adjustment, tilt angle adjustment and X-value adjustment by providing a guide pole integrally with a fitting member at a prescribed distance from a sound control head. CONSTITUTION:The guide pole 6 and a slant pole 6a on the magnetic tape lead-out side are provided integrally with a base plate part 31 of the magnetic head device 40. A fitting frame 27 including the base plate part 31 are constituted of resin by integrally molding. Then, the poles 6 and 6a are embedded in the base plate part 31 to be fixed or joined to be fixed. At this time, a distance L between an axial center line of the pole 6 and a gap line of a magnetic core 23b of the sound control head 23 is settled to provide an X-value showing a distance between a position of the head 23 and its corresponding video track.

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 and a magnetic tape running system in which the running stability of a magnetic tape is improved.

[0002]

2. Description of the Related Art FIGS. 6 and 7 are views showing the structure of a magnetic tape running system of a general VHS magnetic recording device (VTR).

The magnetic tape cassette comprises a supply reel 1, a take-up reel 12 and a magnetic tape 7. On the other hand, the VTR magnetic tape running system is equipped with a full-width erasing (FE) head 3 for erasing all signals recorded on the magnetic tape 7, a video head, a Hi-Fi head, a flying erase head, etc. Rotating drum 5 for recording / reproducing, erasing and recording / reproducing Hi-Fi signals, voice control / audio erasing head (A / C / E) for recording / reproducing audio signals and recording / reproducing control signals
The head 8, the impedance roller 2 for stable running of the magnetic tape 7, the fixed guide 9, the pinch roller 10, the capstan shaft 11, and the magnetic tape 7 are pulled out from the magnetic tape cassette and wound around the rotary drum 5, or vice versa. Magnetic tape 7 wrapped around the rotating cylinder 5
Of the magnetic tape cassette.

Magnetic tape 7 sent from supply reel 1
Is the full width erasing head 3 via the impedance roller 2.
Through the guide pole 4, is wound around the rotary cylinder 5 by the guide pole 4, passes through the A / C / E head 8 through the guide pole 6, passes through the fixed guide 9, and passes between the pinch roller 10 and the capstan shaft 11. It is wound around the take-up reel 12.

Regarding this conventional magnetic recording device, magnetic recording devices as shown in FIGS. 8 and 9 have already been proposed.

FIG. 9 shows an example of the magnetic tape running system of the proposed magnetic recording apparatus. In FIG. 9, the magnetic tape 7 is pressed against the side surface of the rotary cylinder 5 and the magnetic tape 7 is run. By rotating the rotary cylinder 5 and operating the magnetic head for video and audio, the video signal can be read and written.

On the magnetic tape introduction side of the rotary cylinder 5 (on the left side of the rotary cylinder 5 in FIG. 9), there is provided a guide pole 4 movably instructed by a drive mechanism provided on the main body side of the magnetic recording apparatus. In addition, a guide pole 6 that performs the same operation as the guide pole 4 is provided on the magnetic tape 7 lead-out side of the rotary cylinder 5 (on the right side of the rotary cylinder 5 in FIG. 9). These guide poles 4 and 6 are for pulling out the magnetic tape 7 from the magnetic tape cassette accommodating the magnetic tape 7 and pressing it against the rotary cylinder 5. It should be noted that inclined poles 4a and 6a are provided substantially adjacent to the guide poles 4 and 6, respectively.

Further, in the above running system, the upper flange of the guide pole 4 (position regulating member) is arranged so that the magnetic tape 7 travels along the lead 5a on the groove formed on the side surface of the rotary cylinder 5 without fail. 4b and the upper flange (position regulating member) 6b of the guide pole 6 regulate the position of the upper edge of the magnetic tape 7 to adjust the position of the upper edge of the magnetic tape 7, and the lead 5a of the rotary cylinder 5 The lower edge of the magnetic tape 7 is pressed securely to improve the position regulation and running stability of the magnetic tape 7.

With such a structure, the running of the magnetic tape 7 is stabilized by alternately controlling the positions of the magnetic tape 7 up and down along the running direction of the magnetic tape 7 as shown by the diagonal lines in FIG.

The magnetic head device 20 provided on the rear side of the guide pole 6 is provided with a means for restricting the position of the lower edge of the magnetic tape 7 to improve the stability of the running property of the magnetic tape 7. .

FIG. 8 shows an example of a magnetic head device 20 provided with the above means. This magnetic head device 2
0, the voice erasing head 22 has a magnetic core 22a for erasing a voice signal formed on the upper front surface, the voice control head 23 has a magnetic core 23a for recording / reproducing a voice signal on the upper front surface, and a lower magnetic head 23a for the front surface. It has a magnetic core 23b for recording / reproducing a control signal, a sliding contact surface 22c of the magnetic tape 7 is formed on the front side of the voice erasing head 22, and a sliding contact surface 23c of the magnetic tape 7 is formed on the front side of the voice control head 23. Are formed.

These magnetic heads 22 and 23 are fixed to a mounting frame 27 having a rectangular frame 25 surrounding them and a base 26 integrated under the frame 25.

The frame 25 is for incorporating the voice erasing head 22 and the voice control head 23 which are adjacently integrated with each other, and supports a ceiling portion 30 for supporting the upper portions of these heads and a lower portion of these heads. Base plate 31 and guide columns 3 for supporting the side parts of these heads
2 and 32. A base 26 is extended on the rear side of the substrate 31, and a plurality of through holes 26a for fixing the chassis are formed in the base 26. These through holes 26a are used to fix the base 26 to the chassis by using a reference shaft that is erected on the chassis of the magnetic recording device.

A guide surface 32a for sliding contact with the magnetic tape is formed on the front side of the guide column 32, and a part of the ceiling portion 30 is extended above the guide column 32 to form a guide. A first restricting portion 34 is formed to project to the front side of the surface 32 a, and the board portion 3 is provided below the guide column 32.
A second restricting portion (position restricting means) 35 that is formed by extending a part of 1 to project to the front side of the guide surface 32a is formed, and the first restricting portion 34, the guide column 32, and the second restricting portion 35.
The tape guide 36 is constituted by. Then, the first restricting surface 34 a is formed on the lower surface of the first restricting portion 34, and the second restricting surface 35 a is formed on the upper surface of the second restricting portion 35.

Further, the guide surface 32a is formed on the substrate portion 31.
The corner portion 32b of the guide surface 32a is formed in a curved shape in consideration of the sliding resistance of the magnetic tape 7 while being formed perpendicularly to. Furthermore, as described above, the space between the vertically opposed restriction portions 34 and 35 is the magnetic tape 7.
When the lower edge of the magnetic tape 7 is brought into contact with the regulation surface 35a on the upper surface of the second regulation portions 35, 35 on the lower side in FIG. It is designed to be positioned at.

Then, the sliding contact surfaces 22c and 23 of the voice erasing head 22 and the voice control head 23, respectively.
The c's are tilted forward so that their upper side projects more forward than their lower side, as shown in FIG.

On the other hand, between the first restricting portions 34, 34 and on the upper front side of the voice control head 23, the ceiling portion 30 is extended downward to form a protruding first positioning portion 38. A second positioning portion 39 having a projection shape is formed by extending the board portion 31 upward on the lower front side of the voice control head 23 between the two regulation portions 35, 35.

By mounting the composite magnetic head 20 having the above structure in the magnetic recording apparatus, the running stability of the magnetic tape 7 can be improved and the fixed guide 9 can be omitted.

[0019]

However, the conventional magnetic head device described above has the following problems.
That is, the adjustment of the X value indicating the position of the audio control head 23 and the distance between the corresponding video tracks is performed by using an adjustment gear (not shown) on the chassis side and a head side X value adjustment gear 29. This is carried out by rotating the composite magnetic head 31 in the magnetic tape traveling direction by rotating 31 around the fulcrum (not shown) of rotation of the substrate portion 31. Normally, the X adjustment is performed after the azimuth angle adjustment, the height adjustment, and the tilt angle adjustment are completed. Therefore, in the magnetic head device of FIG. 8, the azimuth angle, height, and
Although the misalignment of the tilt angle can be reduced, the X adjustment is still necessary. That is, there is an adjustment work after attaching the magnetic head device to the chassis side, and complete adjustment of head attachment has not been realized.

The present invention is applicable to azimuth angle adjustment, height adjustment,
It is an object of the present invention to provide an attachment-free adjustment magnetic head device that does not require tilt angle adjustment and X value adjustment.

[0021]

According to a first aspect of the invention, in a magnetic head device in which a magnetic head is mounted on a mounting member, an X value representing a position of a voice control head and a distance between corresponding video tracks is defined. To be,
A guide pole is provided integrally with the mounting member at a predetermined distance from the voice control head.

In a second aspect based on the first aspect, the attaching member is a guide portion for guiding the magnetic tape to at least one side of the magnetic head in the magnetic tape running direction, and one end of the guide portion is a magnetic tape. A magnetic tape sliding contact surface of the magnetic head or a guide surface of the guide portion so that one side end of the magnetic tape is pressed by the regulating portion. It is characterized by being inclined with respect to the width direction.

In a third aspect based on the first aspect, the mounting member includes guide portions for guiding the magnetic tape to both sides of the magnetic head in the magnetic tape running direction, and one end of the magnetic tape at one end of the guide portion. A plane perpendicular to a plane in contact with the magnetic tape sliding contact surface in the gap of the magnetic core and a line segment connecting the regulation surfaces of the regulation section are perpendicular to each other, and one side end of the magnetic tape At least one of the magnetic tape sliding contact surface of the magnetic head and the guide surface of the guide portion is inclined with respect to the width direction of the magnetic tape so that the pressure is pressed by the regulation surface of the regulation portion. .

A fourth invention is for recording or reproducing a video signal, and a rotating cylinder into which a magnetic tape is introduced, and an introducing side guide provided on the magnetic tape introducing side of the rotating cylinder to guide the magnetic tape. A lead-out side guide pole that is provided on the lead-out side of the pole and the rotating cylinder and guides the magnetic tape, and a magnetic head device that is provided on the lead-out side of the lead-out side guide pole and writes or reads a signal to or from the magnetic tape, 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 guide pole, and a position regulating member for regulating the position of the other side edge of the magnetic tape on the rotating cylinder is formed. 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 lead-out side guide pole, and the magnetic head device is also provided. In a magnetic tape running system provided with position restricting means for restricting the other side edge of the magnetic tape in the width direction, the X value representing the position of the audio control head and the distance between the corresponding video tracks is defined. As described above, it is characterized in that the lead-out guide pole is provided integrally with the magnetic head device with a predetermined distance from the voice control head.

[0025]

According to the magnetic head device of the present invention, in the magnetic head device in which the magnetic head is mounted on the mounting member,
A guide pole is provided integrally with the mounting member at a predetermined distance from the audio control head so that an X value representing the position of the audio control head and the distance between the corresponding video tracks is defined. Therefore, it is not necessary to adjust the X value after the magnetic head device is attached to the chassis, and the assembly process of the magnetic recording device can be simplified.

Further, the mounting member has a guide portion for guiding the magnetic tape to at least one side of the magnetic head in the magnetic tape running direction, and a regulating portion for regulating one end of the magnetic tape at one end of the guide portion. Since at least one of the magnetic tape sliding contact surface of the magnetic head or the guide surface of the guide portion is inclined with respect to the width direction of the magnetic tape so that one end of the magnetic tape is pressed by the regulating portion,
Not only the adjustment of the X value, but also the tilt angle adjustment and the height adjustment are unnecessary.

Furthermore, the mounting member includes guide portions for guiding the magnetic tape on both sides of the magnetic head in the magnetic tape running direction, and a regulating portion for regulating one end of the magnetic tape at one end of the guide portion. A plane perpendicular to the plane in contact with the sliding surface of the magnetic tape in the gap of the magnetic core and a line segment connecting the regulation surface of the regulation portion are present perpendicularly, and one side end of the magnetic tape is pressed against the regulation surface of the regulation portion. As described above, at least one of the magnetic tape sliding contact surface of the magnetic head and the guide surface of the guide portion is inclined with respect to the width direction of the magnetic tape. It can be mounted accurately, and the azimuth angle adjustment after mounting the magnetic head device on the chassis is also unnecessary.

On the other hand, in the magnetic tape running system of the present invention, a rotary cylinder for recording or reproducing a video signal, into which the magnetic tape is introduced, and a magnetic tape provided on the magnetic tape introduction side of the rotary cylinder. A guide side for guiding the magnetic tape, and a guide pole for guiding the magnetic tape, and a guide pole for guiding the magnetic tape, and a guide side for guiding the magnetic tape to write or read a signal to or from the magnetic tape. A magnetic head device is provided, and a position regulating member that regulates one side edge of the magnetic tape in the width direction is formed on the introduction side guide pole, and the other side edge of the magnetic tape in the width direction is regulated on the rotary cylinder. And a position regulating member for regulating the widthwise one side edge of the magnetic tape is formed on the lead-out side guide pole. In addition, in a magnetic tape running system in which the magnetic head device is provided with a position restricting means for restricting the other side edge of the magnetic tape in the width direction, the position of the audio control head and the distance between the corresponding video tracks are adjusted. Since the lead-out guide pole is provided integrally with the magnetic head device at a predetermined distance from the voice control head so as to define the X value to be expressed, the running stability of the magnetic tape is improved. You can
Further, it is not necessary to adjust the X value after the magnetic head device is attached to the chassis, which simplifies the assembling process of the magnetic recording device, and there is no deviation between the video signal, the audio signal, and the control signal. It is possible to provide an ideal magnetic tape running system.

[0029]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a diagram showing a magnetic head device of the present invention. In this magnetic head device 40, the voice erasing head 22 has a magnetic core 22a for erasing a voice signal formed on the upper front surface, and the voice control head 23 has a magnetic core 23a for recording / reproducing a voice signal on the upper front surface. , A magnetic core 23 for recording / reproducing a control signal on the lower front surface
The slide contact surface 22c of the magnetic tape 7 is formed on the front side of the voice erasing head 22, and the slide contact surface 23c of the magnetic tape 7 is formed on the front side of the voice control head 23.

The magnetic heads 22 and 23 are fixed to a mounting frame (mounting member) 27 having a rectangular frame body 25 surrounding them and a base 26 integrated under the frame body 25. .

The frame 25 is for incorporating the voice erasing head 22 and the voice control head 23 which are adjacently integrated with each other, and supports the ceiling portion 30 for supporting the upper portions of these heads and the lower portion of these heads. Substrate part 3
1 and guide struts 32 supporting the sides of these heads,
32 and 32. A base 26 is extended on the rear side of the substrate 31, and a plurality of through holes 26a for fixing the chassis are formed in the base 26. These through holes 26
Reference character a is used to fix the base 26 to the chassis by using a reference shaft that is erected on the chassis of the magnetic recording device.

A guide surface 32a for sliding contact with the magnetic tape is formed on the front side of the guide column 32, and a part of the ceiling portion 30 is extended above the guide column 32 to form a guide. A first restricting portion 34 is formed to project to the front side of the surface 32 a, and the board portion 3 is provided below the guide column 32.
A second restricting portion (position restricting means) 35 that is formed by extending a part of 1 to project to the front side of the guide surface 32a is formed, and the first restricting portion 34, the guide column 32, and the second restricting portion 35.
The tape guide 36 is constituted by. Then, the first restricting surface 34 a is formed on the lower surface of the first restricting portion 34, and the second restricting surface 35 a is formed on the upper surface of the second restricting portion 35.

Further, the guide surface 32a is formed on the substrate portion 31.
The corner portion 32b of the guide surface 32a is formed in a curved shape in consideration of the sliding resistance of the magnetic tape 7 while being formed perpendicularly to. Furthermore, as described above, the space between the vertically opposed restriction portions 34 and 35 is the magnetic tape 7.
When the lower edge of the magnetic tape 7 is brought into contact with the regulation surface 35a on the upper surface of the second regulation portions 35, 35 on the lower side in FIG. It is designed to be positioned at.

Then, the sliding contact surfaces 22c and 23 of the voice erasing head 22 and the voice control head 23, respectively.
The c's are tilted forward so that their upper side projects more forward than their lower side as shown in FIG. The forward tilt angle in this case may be any number of times, for example, about 30 minutes is sufficient, but it is exaggerated in FIG.

On the other hand, between the first restricting portions 34, 34 and on the upper front side of the voice control head 23, the ceiling portion 30 is extended downward to form a protruding first positioning portion 38. A second positioning portion 39 having a projection shape is formed by extending the board portion 31 upward on the lower front side of the voice control head 23 between the two regulation portions 35, 35. The voice erasing head 22 and the voice control head 2 are controlled by the first positioning portion 38 and the second regulating portion 39.
A forward tilt angle of 3 can be positioned.

Of course, in addition to this, the guide surface 32a of the guide column 32 may be tilted forward.

Further, the mounting work of the voice erasing head 22 and the voice control head 23 to the frame body 55 can be accurately performed by an automatic machine when the magnetic head device 40 is manufactured.

In the present invention, the guide pole 6 on the magnetic tape lead-out side and the inclined pole 6a are provided integrally with the substrate portion 31 of the magnetic head device 40 described above. In this embodiment, the mounting frame 2 including the board portion 31
7 is integrally formed of resin. The guide pole 6 and the tilted pole 6a are embedded and fixed in the substrate portion 31 or are joined and fixed. At this time, the distance L between the axis center line of the guide pole 6 and the gap line of the magnetic core 23b of the voice control head 23 is defined as the X value representing the distance between the position of the voice control head 23 and the corresponding video track. Is set. Therefore, the video signal, the audio signal, and the control signal do not deviate from each other, and it is not necessary to adjust the X value after the magnetic head device 40 is attached to the chassis.

Next, an embodiment of the magnetic tape running system of the present invention will be described. In FIG. 2, the magnetic tape 7 is pressed against the side surface of the rotary cylinder 5, the rotary cylinder 5 is rotated while the magnetic tape 7 is running, and the magnetic head is operated to read / write the video signal. .

On the magnetic tape introduction side of the rotary cylinder 5 (on the left side of the rotary cylinder 5 in FIG. 9), there is provided a guide pole 4 movably supported by a drive mechanism provided on the main body side of the magnetic recording apparatus. In addition, a guide pole 6 that performs the same operation as the guide pole 4 is provided on the magnetic tape 7 lead-out side of the rotary cylinder 5 (on the right side of the rotary cylinder 5 in FIG. 9). These guide poles 4 and 6 are for pulling out the magnetic tape 7 from the magnetic tape cassette accommodating the magnetic tape 7 and pressing it against the rotary cylinder 5. It should be noted that inclined poles 4a and 6a are provided substantially adjacent to the guide poles 4 and 6, respectively.

In the traveling system described above, the upper flange (position regulating member) of the guide pole 4 is arranged so that the magnetic tape 7 travels reliably along the lead 5a on the groove formed on the side surface of the rotary cylinder 5. 4b and the upper flange (position regulating member) 6b of the guide pole 6 regulate the position of the upper edge of the magnetic tape 7 to adjust the position of the upper edge of the magnetic tape 7, and the lead 5a of the rotary cylinder 5 The lower edge of the magnetic tape 7 is pressed securely to improve the position regulation and running stability of the magnetic tape 7.

With such a structure, the position of the magnetic tape 7 is regulated alternately in the vertical direction as shown by the diagonal lines in FIG. 2 along the running direction of the magnetic tape 7 to stabilize the running property of the magnetic tape 7.

The magnetic head device 40 provided on the rear side of the guide pole 6 is provided with a means for restricting the position of the lower edge of the magnetic tape 7 to improve the stability of running of the magnetic tape 7. .

In the present invention, the guide pole 6 and the inclined pole 6a on the magnetic tape lead-out side are integrally provided with the substrate portion 31 of the magnetic head device 40 described above.

Next, a method of driving the magnetic head device 40 will be described with reference to FIGS. First, when the magnetic tape cassette is set in the main body of the magnetic recording apparatus, the magnetic tape 7 is not yet wound around the rotary cylinder 5 as shown in FIG. 3, and the guide poles 4 and 6 and the tilted poles 4a and 6a are provided. Are recesses 44 and 46 for pulling out the magnetic tape of the magnetic tape cassette, respectively.
Is located in. When the guide poles 4 and 6 and the inclined poles 4a and 6a start pulling out the magnetic tape 7, the magnetic head device 40 is moved along the magnetic head device drive grooves 47 and 48 as shown in FIG. A drive member (not shown) provided in the drive unit moves while being fitted in the drive grooves 47 and 48. Then, as shown in FIG. 5, the magnetic tape 7 is wound around the rotary cylinder 5, and the driving of the magnetic head device 40 is completed. When the magnetic tape cassette is taken out from the magnetic recording device, the magnetic head device 40 stores the magnetic tape 7 in the magnetic tape cassette by a method reverse to the driving method described above.

Next, in the case where the magnetic head device 40 having the above-described structure is attached to the magnetic recording device, further, after this attachment, the magnetic tape 7 is attached to the magnetic head device 40.
The case of sliding with respect to will be described.

The magnetic head device 4 constructed as described above.
0 is a predetermined value on the chassis of the magnetic recording device by inserting a plurality of reference shafts standing on the chassis of the magnetic recording device into the through holes 26a of the base 26 and screwing the reference shafts. It is fixed exactly at the position.

Then, the magnetic head device 40 as described above is used.
2 is adopted, when the magnetic tape 7 is pressed against the rotary cylinder 5 and is run, the guide pole 4 and the guide pole 6 have the magnetic tape 7 as shown by the diagonal lines in FIG.
Although the position of the upper edge of the magnetic tape is regulated, the rotary cylinder 5 and the magnetic head device 40 can regulate the position of the lower edge of the magnetic tape.

That is, when the magnetic tape 7 is slidably contacted with the magnetic head device 40 constructed as described above,
The magnetic tape 7 slides along the guide surfaces 32a and 32a, and at the same time, the sliding contact surface 2 of the voice erasing head 22 in the forward tilted posture.
2c slides along the sliding contact surface 23c of the voice control head 23, so that the magnetic tape 7 is pressed so as to move to the lower edge portion side. As a result, the lower edge portion of the magnetic tape 7 becomes the second regulating portion. It slides while being pressed against the restricting surfaces 35a of 35, 35. That is, the position of the lower edge of the magnetic tape 7 is regulated.

As a result, the guide pole 4, the rotary cylinder 5, the guide pole 6 shown in FIG. 2 and the regulation surface 35a shown in FIG. 1 are positioned with respect to the magnetic tape 7 in the vertical direction along the running direction of the magnetic tape 7. Because the magnetic tape 7 can be regulated, the running magnetic tape 7 can be accurately positioned and the magnetic tape 7
It is possible to stabilize the running performance of the. In addition, the regulation surface 35
By controlling the position of the lower edge of the magnetic tape 7 by a, the magnetic tape 7 can be accurately positioned, particularly in the height direction, and the running property can be further stabilized.

Therefore, it becomes unnecessary to adjust the height after the magnetic head device 40 is attached to the chassis.

When the magnetic tape 7 is to be displaced vertically from the above-mentioned restricting positions, the edge portion of the magnetic tape 7 in contact with the flange portion 4b, the lead portion 5a, the flange portion 6b and the second restricting surface 35a. A tension acts on each of the magnetic tapes 7 to regulate the edges thereof, and the pressure regulation force holds the magnetic tape 7 at a prescribed height position.

On the other hand, the magnetic head device having the structure shown in FIG. 1 also exhibits the effects described below.

First, in the magnetic gap of the magnetic core 23a of the voice control head 23, a surface perpendicular to the plane in contact with the sliding contact surface 23c and the second restricting portions 3 on both sides of the magnetic head.
The line segments connecting the restriction surfaces 35a and 35a of the reference numerals 5 and 35 are perpendicular to each other. As a result, the lower edge of the magnetic tape 7 runs along the regulation surface 35a, and the magnetic tape 7 runs so that the magnetic gap of the magnetic core 23a and the running direction of the magnetic tape 7 are perpendicular to each other. The running of the tape is extremely stable.

When the voice erasing head 22 and the voice control head 23 are mounted and fixed to the frame 25 of the mounting frame 27, if the azimuth angle is strictly defined and mounted, the adjustment of the azimuth angle is magnetically recorded. The azimuth angle does not have to be set after the device is attached to the device, and the azimuth angle becomes an optimum angle during magnetic recording / reproduction, so that the magnetic characteristics for recording / reproducing / erasing audio signals and recording / reproducing control signals are improved. As a result, the adjustment of the azimuth angle, which is performed after the magnetic head device 40 is attached to the magnetic recording device, becomes unnecessary.

Regarding the tilt angle, the magnetic tape 7
The angle of each of the sliding contact surfaces 22c and 23c with respect to the width direction is set to a predetermined value (an angle sufficient for the lower edge of the magnetic tape 7 to travel along the regulation surface 35a of the regulation portion 35), Since it is tilted, it is not necessary to adjust the tilt angle after attaching the magnetic head device 40 to the magnetic recording device.

From the above, after the magnetic head device 40 is attached to the magnetic recording device, any of the azimuth angle adjustment, tilt adjustment, height adjustment, and X value adjustment can be omitted, and the magnetic head device 40 can be made magnetic. It is possible to eliminate the fine adjustment work when mounting the recording device.

Although the magnetic head incorporated in the mounting frame as shown in FIG. 1 has been described in this embodiment, the present invention is not limited to this, and the magnetic head is mounted on the mounting plate (mounting member) as in the conventional case. The magnetic head may be one in which the mounting plate and the guide pole are integrally formed.

[0060]

As described above, according to the magnetic head device of the present invention, in the magnetic head device in which the magnetic head is incorporated in the mounting member, the position of the audio control head and the distance between the corresponding video tracks are represented. Since the guide pole is provided integrally with the mounting member at a predetermined distance from the voice control head so that the X value is regulated, the X value is adjusted after the magnetic head device is mounted on the chassis. Is unnecessary, and the assembly process of the magnetic recording device can be simplified.

Further, the mounting member includes a guide portion for guiding the magnetic tape to at least one side of the magnetic head in the magnetic tape running direction, and a regulating portion for regulating one end of the magnetic tape at one end of the guide portion. Since at least one of the magnetic tape sliding contact surface of the magnetic head or the guide surface of the guide portion is inclined with respect to the width direction of the magnetic tape so that one end of the magnetic tape is pressed by the regulating portion,
Not only the adjustment of the X value, but also the tilt angle adjustment and the height adjustment are unnecessary.

Furthermore, the mounting member includes guide portions for guiding the magnetic tape on both sides of the magnetic head in the magnetic tape running direction, and a regulating portion for regulating one end of the magnetic tape at one end of the guide portion. A plane perpendicular to the plane in contact with the sliding surface of the magnetic tape in the gap of the magnetic core and a line segment connecting the regulation surface of the regulation portion are present perpendicularly, and one side end of the magnetic tape is pressed against the regulation surface of the regulation portion. As described above, at least one of the magnetic tape sliding contact surface of the magnetic head and the guide surface of the guide portion is inclined with respect to the width direction of the magnetic tape. It can be mounted accurately, and the azimuth angle adjustment after mounting the magnetic head device on the chassis is also unnecessary.

On the other hand, in the magnetic tape running system of the present invention, a rotary cylinder for recording or reproducing a video signal, into which the magnetic tape is introduced, and a magnetic tape provided on the magnetic tape introduction side of the rotary cylinder. A guide side for guiding the magnetic tape provided on the lead-out side of the guide cylinder for guiding the magnetic tape, and a guide pole for guiding the magnetic tape, and for writing or reading a signal on the magnetic tape provided on the lead-out side of the guide pole for the leading side. A magnetic head device is provided, and a position regulating member that regulates one side edge of the magnetic tape in the width direction is formed on the introduction side guide pole, and the other side edge of the magnetic tape in the width direction is positioned on the rotary cylinder. A position regulating member for regulating is formed, and a position regulating member for regulating the position of one side edge portion of the magnetic tape in the width direction is formed on the lead-out side guide pole. In addition, in a magnetic tape running system in which the magnetic head device is provided with a position restricting means for restricting the other side edge of the magnetic tape in the width direction, the position of the audio control head and the distance between the corresponding video tracks are adjusted. Since the lead-out guide pole is provided integrally with the magnetic head device at a predetermined distance from the voice control head so as to define the X value to be expressed, the running stability of the magnetic tape is improved. You can
Further, it is not necessary to adjust the X value after the magnetic head device is attached to the chassis, and the assembling process of the magnetic recording device can be simplified. It is possible to provide an ideal magnetic tape running system in which there is no deviation between the video signal, the audio signal and the control signal.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a magnetic head device of the present invention.

FIG. 2 is a front view showing a magnetic tape running system of the present invention.

FIG. 3 is a top view showing a method of driving a magnetic head device in a magnetic tape running system of the present invention.

FIG. 4 is a top view showing a method of driving a magnetic head device in a magnetic tape running system of the present invention.

FIG. 5 is a top view showing a method of driving a magnetic head device in a magnetic tape running system of the present invention.

FIG. 6 is a top view showing a conventional magnetic tape running system.

FIG. 7 is a top view showing a conventional magnetic tape running system.

FIG. 8 is a perspective view showing a conventional magnetic head device.

FIG. 9 is a front view showing a conventional magnetic tape running system.

[Explanation of symbols]

 4 Guide Pole 4b Flange Part 5 Rotating Cylinder 5a Lead Part 6 Guide Pole 6b Flange Part 22 Voice Erase Head 23 Voice Control Head 25 Frame 26 Base 27 Attachment Frame 31 Board Part 32 Guide Part 34 First Restriction Part 34a First Regulation Surface 35 Second restricting portion 35a Second restricting surface 40 Magnetic head device

[Procedure amendment]

[Submission date] July 14, 1994

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 4]

[Figure 9]

[Figure 5]

[Figure 6]

[Figure 7]

[Figure 8]

Claims (4)

[Claims] 1. In a magnetic head device having a magnetic head mounted on a mounting member, a guide pole is provided for the voice so that an X value representing a position of a voice control head and a distance between corresponding video tracks is defined. A magnetic head device, wherein the magnetic head device is provided integrally with the mounting member at a predetermined distance from the control head. 2. The magnetic head device according to claim 1, wherein the mounting member includes a guide portion for guiding the magnetic tape to at least one side of the magnetic head in the magnetic tape running direction, and a magnetic tape at one end of the guide portion. A magnetic tape sliding contact surface of the magnetic head or a guide surface of the guide portion so that one side end of the magnetic tape is pressed by the regulating portion. A magnetic head device characterized by being inclined with respect to the width direction. 3. The magnetic head device according to claim 1, wherein the attachment member includes guide portions for guiding the magnetic tape to both sides of the magnetic head in the magnetic tape running direction, and one end of the magnetic tape at one end of the guide portion. A plane perpendicular to a plane in contact with the magnetic tape sliding contact surface in the gap of the magnetic core and a line segment connecting the regulation surfaces of the regulation section are perpendicular to each other, and one side end of the magnetic tape At least one of the magnetic tape sliding contact surface of the magnetic head and the guide surface of the guide portion is inclined with respect to the width direction of the magnetic tape so that the pressure is pressed by the restriction surface of the regulation portion. Magnetic head device. 4. A rotary cylinder for recording or reproducing a video signal, into which a magnetic tape is introduced, and a guide cylinder and a guide cylinder provided on the magnetic tape introduction side of the rotary cylinder for guiding the magnetic tape. A guide pole provided on the lead-out side for guiding the magnetic tape, and a magnetic head device provided on the lead-out side of the lead-out guide pole for writing or reading a signal to or from the magnetic tape. A position regulating member for regulating the position of one side edge of the magnetic tape in the width direction is formed on the pole, and a position regulating member for regulating the position of the other side edge of the magnetic tape on the rotating cylinder is formed. A position regulating member for regulating the position of one side edge of the magnetic tape in the width direction is formed on the side guide pole, and the magnetic head device is provided with a position regulating member. In a magnetic tape running system provided with a position regulating means for regulating the other side edge portion in the width direction, the X value representing the distance between the position of the audio control head and the corresponding video track is regulated. A magnetic tape running system characterized in that the lead-out side guide pole is provided integrally with the magnetic head device at a predetermined distance from the voice control head.