JPH0950685A - Tape cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize the recording and/or reproducing performance against a magnetic tape and also to steadily prevent the generation of data error. SOLUTION: Inside a main body of the cartridge, a 3rd tape guide 50 is arranged between a guide pin 20B provided with a flange at the front surface side and a tape take-up reel, and also a magnetic tape control member 51 provided with an opening part 52 for sucking the magnetic tape is arranged between the 3rd tape guide 50 and the tape take-up reel. Then, this opening part 52 is arranged so as to be blocked by the magnetic tape 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape cartridge such as a data cartridge used for data backup of personal computers, office computers and the like.

[0002]

2. Description of the Related Art A recording and / or reproducing apparatus is connected to a personal computer, an office computer or the like, and is loaded with a data cartridge for use. This data cartridge, for example, absorbs a data signal stored in a memory of the computer body and supplies the data signal recorded on a recording medium such as a magnetic tape or a magnetic disk or a magneto-optical disk to the memory of the computer body. Backup data by.

For example, a data cartridge 100 using a magnetic tape 105 as a recording medium, as shown in FIGS. 11 and 12, has a cover formed in a substantially shallow dish shape by a synthetic resin material (not shown) and an aluminum shown in FIG. The cartridge body 110 is configured by combining with a base plate 115 formed of a metal plate such as a plate. And
The magnetic head 14 is provided on the front side of the cartridge body 110.
A recording and / or reproducing opening portion 111 into which 0 enters and a driving opening portion into which a magnetic tape driving means on the recording and / or reproducing apparatus side enters are provided.

Inside the cartridge body 110, as shown in FIG. 12, a tape supply reel 120 and a tape take-up reel 121 around which the magnetic tape 105 is wound.
Reel pin 123 (123
A, 123B), the tape guide pin 125 (125A, 125B) with which the magnetic tape 105 is engaged, and the guide roller 131 with which the endless belt 108 that rotatably drives the tape supply reel 120 and the tape take-up reel 121 is engaged. (131A, 131B) rotatably attached to the guide roller pin 130 (130
A, 130B) are erected integrally with the base plate 115. A drive roller pin 135 is provided upright integrally with the base plate 115 at a substantially central portion on the front side of the cartridge body 110.

The reel pin 123 has a base plate 11
In the central region of the No. 5, they are erected so as to be separated from each other in the longitudinal direction. A pair of tape supply reels 120 and a pair of reel hubs 124 (124A, 124B) on the tape take-up reel 121 side are rotatably attached to these reel pins 123.

The tape guide pins 125 are provided at the left and right ends of the front surface of the cartridge body 110 at the base plate 11 respectively.
It is provided integrally with 5. This tape guide pin 12
5 is a flange portion 126 (126A, 126A) for preventing the magnetic tape 105 from slipping out around the upper edge.
B) is projected. Therefore, the magnetic tape 105
When traveling between the pair of tape guide pins 125, the flange portion 126 and the root portion 127 (127A, 12A)
7B) and travels along the recording and / or reproducing opening 111 on the front surface of the cartridge body 110 while maintaining a constant height. Further, in the cartridge body 110, a tape guide pin 112 is provided upright integrally with the base plate 115 at a portion located near the recording and / or reproducing opening 111. The tape guide pin 112 causes the magnetic tape 105 to travel on the recording and / or reproducing opening 111 in a stretched state.

The guide roller pins 130 are provided at the rear left and right ends of the cartridge body 110 at the base plate 115.
It is erected integrally with. A guide roller 131 is rotatably attached to the pair of guide roller pins 130, and the endless belt 108 is hung on the guide roller 131.

The drive roller pin 135 is erected in the center of the front surface of the cartridge body 110, and the belt drive roller 136 is rotatably attached to the belt main body.

The cartridge body 1 having such a structure
In the inside of 10, an endless belt 108 is hung on a guide roller, and is hung on a belt driving roller via a central space of the tape supply reel and the tape take-up reel. Therefore, the endless belt 108 makes contact with the magnetic tape 105 wound around the tape supply reel and the tape take-up reel in a predetermined manner and travels along the substantially convex running path.

When the data cartridge 100 having the above-described structure is loaded in the recording and / or reproducing apparatus, the magnetic tape drive means on the recording and / or reproducing apparatus side enters the drive opening portion and the belt drive roller. Is rotated. As shown in FIG. 13, the data cartridge 100 has a magnetic head 14 on the recording and / or reproducing device side.
0 enters the recording and / or reproducing opening 111, and data is recorded or read on the magnetic tape 105. At this time, in the data cartridge 100, the magnetic tape 105 is attached to the magnetic head 14 on the recording and / or reproducing device side.
In the state of being pressed by 0, the magnetic tape 105 generates a tape tension which is a resistance force to the magnetic head 140. The magnetic tape 105 is shown in FIG.
As shown in, the tape winding reel changes so that it gradually increases as the winding ratio by the tape winding reel increases. Therefore, in the data cartridge 100, if the tape tension of the magnetic tape 105 is large and the fluctuation range of the tape tension is small, the contact between the magnetic tape 105 and the magnetic head 140 on the recording and / or reproducing apparatus side is good and stable. Recording and / or reproduction is performed in this state.

[0011]

However, in the data cartridge 100 configured as described above, the tape tension is changed according to the winding rate of the magnetic tape 105. Therefore, when the tape tension of the magnetic tape 105 becomes small or the direction of the tape tension shown by the arrow Z in FIG. 15 becomes large, the magnetic tape 1
05 and the magnetic head 140 on the recording and / or reproducing apparatus side may change, and the output voltage of the data signal to be recorded and / or reproduced may decrease, causing a data error.

Further, in the data cartridge 100, when an off-track which is a vibration of the magnetic tape 105 in the width direction shown in the Y direction in FIG. 15 is generated, the track recorded on the magnetic tape 105 is recorded and / or reproduced on the side of the recording / reproducing apparatus. When recording and / or reproducing with the magnetic head 140, the magnetic head 14
The recording and / or reproducing position of 0 is displaced. Therefore, in the data cartridge 100, the magnetic head 140 on the recording and / or reproducing device side may not be able to recognize the data signal, which may cause a data error.

Further, the data cartridge 100 is
When the magnetic tape 105 vibrates in the traveling direction indicated by the arrow X in FIG. 15, the recording and / or reproducing position of the magnetic head 140 of the recording and / or reproducing device with respect to the magnetic tape 105 is instantaneously moved to cause a data signal. May not be recognized and may cause a data error.

Further, in the data cartridge 100, the magnetic tapes in the tape tension direction, the width direction, and the running direction during running are influenced by the dimensional accuracy of the mechanical parts such as reel hubs constituting the tape supply reel and the tape take-up reel. The vibration of 105 is generated. However, since the data cartridge 100 is made by forming these constituent parts from synthetic resin, it is difficult to further improve the dimensional accuracy of the mechanical parts. Therefore, in the data cartridge 100, it is difficult to run the magnetic tape 105 in a stable state due to higher precision of mechanical parts, and there is a limit in preventing occurrence of data error.

Therefore, the present invention has been proposed for the purpose of providing a tape cartridge which stabilizes the recording and / or reproducing characteristics of a tape-shaped recording medium and surely prevents the occurrence of a data error. is there.

[0016]

A tape cartridge according to the present invention is constructed by combining a cover and a base plate, and a recording and / or reproducing means of a recording and / or reproducing device is inserted into a front surface of the tape cartridge. And / or by recording between a cartridge body provided with a reproduction opening and a first tape guide and a second tape guide located at both ends on the front side of the cartridge body fed from one tape reel. And / or a tape-shaped recording medium wound around the other tape reel across the reproduction opening. In the tape cartridge configured as described above, a third tape guide is provided inside the cartridge body between the tape guide on the front side of the cartridge body and the tape reel, and the third tape guide and the tape reel are provided. A tape-shaped recording medium regulating member having a magnetic tape suction opening having a substantially U-shaped cross section is provided between the tape-shaped recording medium and the tape-shaped recording medium suction opening is arranged so as to be closed by the tape-shaped recording medium. And

That is, when the tape cartridge is loaded in the recording and / or reproducing apparatus, the recording and / or reproducing head on the recording and / or reproducing apparatus side is inserted into the recording and / or reproducing opening portion and the tape main body of the cartridge main body is inserted. The tape-shaped recording medium running along the front surface is contacted. At this time, a negative pressure is generated in the tape-shaped recording medium suction opening of the tape-shaped recording medium regulation member by the traveling tape-shaped recording medium, and a suction force is generated. As a result, the tape cartridge steadily reduces vibration during running of the tape-shaped recording medium. Then, in the tape cartridge, the recording and / or reproducing head that is in contact with the tape-shaped recording medium reliably records and / or reproduces the data signal on the tape-shaped recording medium.

[0018]

BEST MODE FOR CARRYING OUT THE INVENTION A tape cartridge 1 according to a specific embodiment of the present invention will be described in detail below with reference to the drawings.

As shown in FIG. 1, the tape cartridge 1 is used by being loaded in a recording and / or reproducing device which is connected to a computer device or the like and sucks up or feeds back a data signal stored in a memory device on the main body side. It

The tape cartridge 1 is made of a synthetic resin material such as a polycarbonate resin, and has a cover 2 formed into a substantially shallow dish shape, and an aluminum plate, an aluminum alloy plate, etc., which is combined with an open lower portion of the cover 2. The cartridge body 10 is configured by integrally combining and coupling the base plate 3 formed of a metal plate with a plurality of setscrews 7 or mounting studs integrally provided on the inner surface of the cover 2.

The cartridge main body 10 has a recording and / or reproducing opening 12 formed by a notch provided on the front surface of the cover 2 and the front edge of the base plate 3.
Is provided. This recording and / or reproducing opening 12
Has an opening size large enough to allow the magnetic head on the recording and / or reproducing apparatus side into which the tape cartridge 1 is loaded to enter, and is normally closed by a lid 13 forming a part of the cartridge body 10. There is.

The lid 13 is biased in a direction to close the recording and / or reproducing opening 12 by a torsion spring by a lid pin erected at the front corner portion of the base plate 3 to rotate in a cantilever state. It is movably supported.

On the base plate 3, a pair of reel pins are provided upright in the central region so as to be spaced apart from each other in the longitudinal direction, and a magnetic tape 5 having a width of 1 to 4 inches is wound around the reel pins and a tape winding reel. The take-up reel is rotatably supported.

The tape supply reel 15 and the tape take-up reel 16 are each composed of a lower reel member integrally formed with a reel hub and an upper reel member combined with the lower reel member. The end portion and the end portion are fixed to the reel hub by unillustrated clampers.

The cartridge body 10 is also provided with a flanged guide pin 20 (20A, 20B) and a tape guide pin which are formed integrally with the base plate 3 so as to stand upright. The magnetic tape 5 fed from the tape supply reel 15 is stretched around the flanged guide pin 20 and the tape guide pin 25.

The flanged guide pin 20 has a flange portion 21 (21A, 21B) projectingly provided around the upper edge thereof to prevent the magnetic tape 5 from coming off. Therefore, the magnetic tape 5 has the flanged guide pin 2
When traveling between 0, the guide pin 20 along the front surface of the cartridge body 10 is regulated by the flange portions 21 and the root portions 22 (22A, 22B) of the flanged guide pin 20 and held at a constant height. It is run in the state.

The tape guide pin 25 is erected at the cutout portion of the base plate 3 into which the magnetic head on the recording and / or reproducing apparatus side enters. Therefore, the tape guide pin 25 maintains a balance between the frictional force generated when the magnetic tape 5 travels in the forward direction and the frictional force generated when the magnetic tape 5 travels in the reverse direction, so that the magnetic tape 5 is stable on both sides. Be run in.

The tape supply reel 15 and the tape take-up reel 16 described above are rotationally driven by the tape drive mechanism to drive the magnetic tape 5 to run. The tape drive mechanism includes an endless belt 30, a belt drive roller 31 on which the endless belt 30 is wound, and a pair of belt guide rollers 34 (34A, 34B).

The belt driving roller 31 is made of an elastic material having excellent wear resistance. The belt driving roller 31 is provided with a driving flange portion 32 at its upper edge for circumferentially contacting with the driving roller on the recording and / or reproducing device side to receive rotation transmission. Further, the belt drive roller 31 is rotatably mounted on a drive roller pin 33 which is erected at the center of the front side of the base plate 3.

A pair of belt guide rollers 34 (34A,
34B) is formed of an elastic material having excellent wear resistance, and is rotatably mounted on a pair of guide roller pins 35 (35A, 35B) provided upright at both corners on the rear side of the base plate 3. .

The endless belt 30 is stretched around a belt guide roller 34, and is wound around a belt drive roller 31 via the central space of the tape supply reel 15 and the tape take-up reel 16. Therefore, the endless belt 30 comes into contact with the magnetic tape 5 wound around the tape supply reel 15 and the tape take-up reel 16 so as to apply a predetermined tension, and travels in a substantially convex running path.

Further, the cover 2 is provided with a rectangular drive opening 36 on the front surface thereof so that a part of the peripheral surface of the belt drive roller 31 is exposed to the outside. Tape cartridge 1
When loaded in the recording and / or reproducing apparatus, the driving roller on the recording and / or reproducing apparatus side enters from the driving opening 36, and the driving roller is attached to the peripheral surface of the belt driving roller 31 of the tape cartridge 1. The tape drive mechanism is driven by rotationally contacting the protruding drive flange portion 32.

Further, the cover 2 is combined with the erroneous recording prevention member 40 on the front side of the upper surface of the magnetic tape 5.
An erroneous recording prevention mechanism is provided for preventing the data signal recorded on the recording medium from being accidentally erased.

This erroneous recording prevention mechanism has an operation guide hole 42 provided as a rectangular elongated hole along the front surface of the cover 2 and a slide recessed in the front surface of the cover 2 as a substantially rectangular groove. The groove 41, an unillustrated erroneous recording prevention hole having a substantially rectangular shape in the vicinity of the slide groove 41 inside the operation guide hole 42, and an erroneous recording prevention member 40 closing the operation guide hole 42 and the erroneous recording prevention hole. It is configured.

The erroneous recording prevention member 40 is made of a synthetic resin material and has a substantially rectangular plate-like operating portion 43, and a closing plate 44 integrally provided in a state orthogonal to one side of the operating portion 43. It consists of The erroneous recording prevention member 40 is
The operation portion 43 is positioned in the operation guide hole 42, and the closing plate 44 is positioned in the slide groove 41 so that the sliding operation can be freely performed. The operation portion 43 has a length dimension that allows a sliding operation between a first position where the erroneous recording prevention hole is opened and a second position where the erroneous recording prevention hole is closed. Also,
The closing plate 44 has an outer dimension sufficient to close the erroneous recording detection hole when the operating portion 43 is slid to the second position.

Although not shown, the base plate 3 is provided with a reflecting member mounting hole on the front side at a position close to one of the flanged guide pins 20B. A reflection member formed as a block body having a substantially right triangle shape is attached to the reflection member attachment hole. A mirror is joined to the reflecting member at the hypotenuse portion facing the traveling path of the magnetic tape 5. Therefore, the tape cartridge 1
When loaded in the recording and / or reproducing device, the mirror of the reflecting member is used to copy the starting end detecting hole and the ending end detecting hole formed in the starting end and the ending end of the magnetic tape 5, respectively. The position detecting means on the side detects the position of the start end and the position of the end of the magnetic tape 5.

Inside the tape cartridge 1 thus constructed, as shown in FIGS. 2 to 7, the flanged guide pin 20B on the tape take-up reel 16 on the front side of the cartridge body 10 and the tape take-up are provided. A third tape guide 50 is erected integrally with the base plate 3 between the reel 16 and the reel 16. Between the third tape guide 50 and the flanged guide pin 20B, a magnetic tape regulation member 51 having a magnetic tape suction opening 52 having a substantially U-shaped cross section is provided. And this magnetic tape regulation member 51
A negative pressure is generated in the magnetic tape suction opening 52, and a suction force for sucking the running magnetic tape 5 is generated.

As shown in FIG. 2, the third tape guide 50 is provided at a position substantially equal to the distance between the short side direction of the base plate 3 and the flanged guide pin 20B, and is erected integrally with the base plate 3. There is. The third tape guide 50 is provided with the flanged guide pin 2
Keep the tape tension between 0B and 0B constant.

A guide pin with a flange may be used as the tape guide 50. When this flanged guide pin is used, a flange portion is provided around the circumference of the upper edge portion to prevent the magnetic tape 5 from coming off, and to regulate the vibration of the magnetic tape 5 in the width direction. The running of the magnetic tape 5 is stabilized.

As the guide pin 50, a substantially rectangular plate-shaped tape guide plate may be used. In this tape guide, the main surface is arranged so as to contact the magnetic tape 5, and the contact area with the magnetic tape 5 is made large.
Therefore, the magnetic tape 5 has a high vibration damping rate, and the running of the magnetic tape 5 is stabilized.

The magnetic tape 5 regulating member 51 is formed of a metal material, a synthetic resin material or the like into a substantially rectangular plate shape having a height dimension slightly smaller than the thickness dimension of the cartridge body 10. Further, the magnetic tape regulating member 51 is provided with a magnetic tape suction opening 52 in which a concave portion is formed by providing convex portions 53 on both sides so as to have a substantially U-shaped cross section. The magnetic tape suction opening 52 has a size equal to or smaller than the width of the magnetic tape 5, as shown in FIG.

As shown in FIG. 2, the magnetic tape regulating member 51 has a magnetic tape suction opening 52 of the magnetic tape regulating member 51 between the flanged guide pin 20B and the third tape guide 50. And is arranged on the base plate 3 so as to be parallel to the short side direction. That is, the magnetic tape regulating member 51 is
Third tape guide 50 and flanged guide pin 20
The magnetic tape suction opening 52 is provided between the magnetic tape 5 and
Are arranged so as to face each other. At this time, the magnetic tape regulating member 51 is adhered and fixed to the base plate 3 with an adhesive material or the like. Further, the magnetic tape regulating member 51 is arranged so that a clearance is provided between the magnetic tape 5 and the convex portion 53 forming the magnetic tape suction opening 52 so that surface friction does not occur.

The magnetic tape regulating member 51 is
As shown in FIG. 4, the base plate 3 is adhered and fixed to the base plate 3 with an adhesive material 56. Further, the magnetic tape regulating member 51
May be fixed by press-fitting it into the base plate 3, as shown in FIG. Further, as shown in FIG. 6, the magnetic tape regulating member 51 may be adhered to the cover 2 side with an adhesive or press-fitted into the cover. . Furthermore, as shown in FIG. 7, the magnetic tape restricting member 51 has screw holes 58 (58A, 58B) on the side of the cover 2 or the base plate 3 and the side surface of the magnetic tape restricting member 51 abutted against the cover 2 or the base plate 3. It is needless to say that the cartridge may be provided and fixed from the outside of the cartridge body 10 with the screw 57 or the like.

In the tape cartridge 1 constructed as described above, the erroneous recording prevention member 40 is moved from the first position, which opens the erroneous recording prevention hole, to the second position, so that the erroneous recording prevention hole is formed. Is blocked. When the erroneous recording prevention member 40 is inserted into the cartridge insertion opening of the recording and / or reproducing apparatus side with the erroneous recording preventing member 40 closed in the erroneous recording preventing hole (not shown), the tape cartridge 1 of the recording and / or reproducing apparatus side is By allowing the erroneous recording detection member to enter the erroneous recording prevention hole, the recording of the data signal on the magnetic tape 5 by the magnetic head is permitted.

When the tape cartridge 1 is loaded into the recording and / or reproducing apparatus, the tape cartridge 1 is rotated by the cover opening means on the recording and / or reproducing apparatus side with the cover pin as a fulcrum against the elastic force of the torsion spring. Recorded and / or operated
Alternatively, the reproduction opening 12 is opened. In the tape cartridge 1, the magnetic head on the recording and / or reproducing apparatus side enters through the opened recording and / or reproducing opening 12 and contacts the magnetic tape 5. On the other hand, tape cartridge 1
The drive / playback roller on the recording and / or playback device side enters through the drive opening and comes into contact with the drive flange portion 32 of the belt drive roller 31 with the magnetic tape 5 and the endless belt 30 interposed therebetween.

In the tape cartridge 1, the belt driving roller 31 is rotated clockwise by the driving roller of the recording and / or reproducing apparatus rotating counterclockwise, and the belt driving roller 31 is rotated. By the operation, the endless belt 30 also rotates in the clockwise direction as a whole.

In the tape cartridge 1, the tape supply reel 15 rotates counterclockwise by the rotation of the endless belt 30 to run the wound magnetic tape 5, and the tape take-up reel 16 moves counterclockwise. The magnetic tape 5 that has been fed by being rotated is wound up.

Thus, when the tape cartridge 1 is loaded in the recording and / or reproducing apparatus, the magnetic tape 5 runs. The magnetic tape suction opening 52 of the magnetic tape regulating member 51 that is closed by the magnetic tape 5 is located inside the magnetic tape suction opening 52 and outside the magnetic tape suction opening 52 via the magnetic tape 5. There is a difference in atmospheric pressure.
Therefore, as shown in FIG. 8, the magnetic tape suction opening 52 generates a suction force to suck the magnetic tape 5 into the magnetic tape suction opening 52 by the width A. At this time, since a thin air film layer 54 is formed in the clearance between the magnetic tape 5 and the magnetic tape suction opening 52, as shown in FIG. 9, a significant increase in friction does not occur.
Therefore, the magnetic tape 5 is prevented from vibrating in the tape tension direction, the width direction, and the traveling direction. Then, the magnetic tape 5 is fed toward the recording and / or reproducing opening 12 in a stable state, and recording and / or reproducing is performed by the magnetic head. Therefore, recording and / or reproduction of the tape cartridge 1 is steadily performed, and the contact between the magnetic head and the magnetic tape 5 is improved.

The same members as those of the tape cartridge 1 according to the first embodiment will be designated by the same reference numerals and detailed description thereof will be omitted.

As shown in FIG. 10, the tape cartridge 70 according to the second embodiment is arranged between the flanged guide pin 20 on the tape take-up reel 16 side of the cartridge body 10 and the tape supply reel 15. A third tape guide 75 is provided upright integrally with the base plate 3. The third tape guide 75 has a distance larger than the distance between the flanged guide pin 20 and the base plate 3 in the short side direction, that is, the cartridge body 10.
Is erected inward. Then, between the third tape guide 75 and the flanged guide pin 20,
A magnetic tape regulation member 76 having a magnetic tape suction opening 77 having a substantially U-shaped cross section is provided. A negative pressure is generated in the magnetic tape suction opening 77 of the magnetic tape regulating member 76, so that a suction force for sucking the traveling magnetic tape 5 is generated.

The third tape guide 75 is provided at a position larger than the distance between the short side direction of the base plate 3 and the flanged guide pin 20, and is erected integrally with the base plate 3. And this tape guide makes the tape tension between the guide pin 20 with the flange constant.

As the third tape guide 75, the flanged guide pin 20 may be used. When this guide pin 20 with a flange is used, a flange portion is provided around the circumference of the upper edge portion to prevent the magnetic tape 5 from coming off, and to regulate the vibration of the magnetic tape 5 in the width direction. Further, the running of the magnetic tape 5 is stabilized.

Further, as the third tape guide 75, a substantially rectangular plate-shaped tape guide plate may be used. The third tape guide 75 is arranged such that its main surface is in contact with the magnetic tape 5, and has a large contact area with the magnetic tape 5. Therefore, the magnetic tape 5 has a high vibration damping rate, and the running of the magnetic tape 5 is stabilized.

The magnetic tape regulating member 76 is formed of a metal material, a synthetic resin material, or the like into a substantially rectangular plate shape having a height dimension slightly smaller than the thickness dimension of the cartridge body 10. Further, this magnetic tape regulating member is provided with a magnetic tape suction opening 77 in which a concave portion is formed by providing convex portions 73 on both sides so as to have a substantially U-shaped cross section. Then, the magnetic tape suction opening 77 is provided in the magnetic tape 5.
The width is equal to or smaller than the width.

In the magnetic tape regulating member 76, the magnetic tape suction opening 77 of the magnetic tape regulating member 76 is closed by the magnetic tape 5 between the flanged guide pin 20 and the third tape guide 75, and at the same time, the base plate is formed. It is arranged so as to be oblique to the short side direction of 3.
That is, the magnetic tape regulating member 76 is arranged between the third tape guide 75 and the flanged guide pin 20 with the magnetic tape suction opening 77 facing the magnetic tape 5. At this time, the magnetic tape regulating member 76 is adhered and fixed to the base plate 3 with an adhesive material or the like.
In addition, the magnetic tape regulating member 76 prevents the surface friction from significantly increasing, so that the magnetic tape 5 and the magnetic tape suction opening 7 are prevented.
It is arranged so that a clearance is provided between the convex portion 78 and the convex portion 78 that configures 7.

As with the tape cartridge 1 according to the first embodiment, the magnetic tape regulating member 76 is not only fixed to the base plate 3 by an adhesive material, but also press-fitted and screwed to the base plate 3. It is fixed by. Further, it goes without saying that the magnetic tape regulating member may be fixed to the cover 2 by adhering, press-fitting or screwing it.

When the tape cartridge 70 thus constructed is loaded in the recording and / or reproducing apparatus, the magnetic tape drive means on the recording and / or reproducing apparatus side enters the drive opening portion, and the belt drive roller 31 is moved. Is rotated. Then, in the tape cartridge 70, the magnetic head on the recording and / or reproducing device side enters the recording and / or reproducing opening 12, and data is recorded or read from the magnetic tape 5.

Then, the magnetic tape suction opening 7 of the magnetic tape regulating member 76 in a state of being closed by the magnetic tape 5.
7, a magnetic tape suction opening 7 through the magnetic tape 5.
There is a difference in atmospheric pressure between inside 7 and outside the magnetic tape suction opening 77. The magnetic tape suction opening 77 generates a suction force to suck the magnetic tape 5 into the magnetic tape suction opening 77, as in the tape cartridge 1 according to the first embodiment. At this time, since a thin air film layer is formed in the clearance between the magnetic tape 5 and the magnetic tape suction opening, a significant increase in friction does not occur. Therefore, the magnetic tape 5 is prevented from vibrating in the tape tension direction, the width direction, and the traveling direction.
Then, the magnetic tape is fed out toward the recording and / or reproducing opening 12 in a stable state, and recording and / or reproducing is performed by the magnetic head. Therefore, recording and / or reproduction of the tape cartridge 70 is steadily performed, and the contact between the magnetic head and the magnetic tape 5 is improved.

The magnetic tape regulating member and the tape guide provided in the above-mentioned tape cartridge may of course be provided in any space as long as no structural component is provided in the structure of the tape cartridge. Is.

[0060]

As described above in detail, according to the tape cartridge of the present invention, the tape tension of the tape-shaped recording medium is large with respect to the recording and / or reproducing head of the recording and / or reproducing apparatus. Since the tape tension is constant, the vibration of the tape-shaped recording medium in the tape tension direction, the width direction, and the running direction are steadily prevented. As a result, the tape cartridge stabilizes the recording and / or reproducing characteristics of the recording and / or reproducing head of the recording and / or reproducing device with respect to the tape-shaped recording medium, and steadily prevents occurrence of data error. . Therefore, in the tape cartridge according to the present invention, by stabilizing the running of the tape-shaped recording medium, the recording frequency is set higher, and the format is changed by increasing the number of recording tracks. The tape-shaped recording medium longer than the tape-shaped recording medium can be used, and the recording capacity can be increased.

Further, since the tape-shaped recording medium regulating member and the third tape guide can be disposed in the space portion where no structural component is disposed due to the structure of the tape cartridge, the effective space portion inside the cartridge body is effective. It can be utilized and the layout design of these can be easily performed.

Furthermore, since the tape-shaped recording medium regulating member is not in direct contact with the tape-shaped recording medium and the air film layer is formed between the tape-shaped recording medium and the tape-shaped recording medium regulating member, it is remarkable. No increase in friction occurs and the tape-shaped recording medium is not damaged.

[Brief description of drawings]

FIG. 1 is a perspective view showing an internal structure of a tape cartridge according to a first embodiment of the present invention.

FIG. 2 is a main part plan view showing a third tape guide and a magnetic tape regulating member of the tape cartridge.

FIG. 3 is a main part perspective view showing a magnetic tape regulating member of the tape cartridge.

FIG. 4 is a perspective view of essential parts showing a state in which the magnetic tape regulating member of the tape cartridge is fixed to the base plate with an adhesive.

FIG. 5 is a perspective view of essential parts showing a state in which the magnetic tape regulating member of the tape cartridge is press-fitted to be fixed to the base plate.

FIG. 6 is a cross-sectional view of essential parts showing a state in which a magnetic tape regulating member of the tape cartridge is fixed to a cover.

FIG. 7 is a main part perspective view showing a state in which the magnetic tape regulating member of the tape cartridge is fixed to the cover with screws.

FIG. 8 is a longitudinal cross-sectional view of relevant parts showing a state where the magnetic tape regulating member of the tape cartridge is attracting the magnetic tape.

FIG. 9 is a longitudinal cross-sectional view of a main portion of the tape cartridge in a state where an air film layer is formed between the magnetic tape regulating member and the traveling magnetic tape.

FIG. 10 is a main-portion cross-sectional view showing a third tape guide and a magnetic tape regulating member of the tape cartridge according to the second embodiment of the invention.

FIG. 11 is a perspective view showing a state in which a cover of a conventional data cartridge is removed.

FIG. 12 is a perspective view of a base plate of the data cartridge.

FIG. 13 is a plan view showing a contact state between the magnetic tape and the magnetic head of the data cartridge.

FIG. 14 is a characteristic diagram of the tape tension with respect to the winding rate of the magnetic tape of the data cartridge.

FIG. 15 is a perspective view of a main part for explaining a vibration direction of a magnetic tape of a conventional data cartridge.

[Explanation of symbols]

 1 Tape Cartridge 2 Cover 3 Base Plate 5 Magnetic Tape 10 Cartridge Body 12 Recording and / or Reproducing Aperture 15 Tape Supply Reel 16 Tape Take-up Reel 20A, 20B Flange Pushing Guide Pin 50 Third Tape Guide 51 Magnetic Tape Restricting Member 52 Magnetic Tape suction opening 54 Air film layer

Claims (2)

[Claims] 1. A cartridge main body which is constructed by combining a cover and a base plate, and has a recording and / or reproducing opening into which a recording and / or reproducing device side recording and / or reproducing means is inserted in a front surface portion. And a first tape guide and a second tape guide located at both ends on the front surface side of the cartridge main body fed from one tape reel are crossed to cross the recording and / or reproducing opening and A tape-shaped recording medium wound around a tape reel is provided. Inside the cartridge body, a third tape guide is provided between the tape guide on the front side of the cartridge body and the tape reel. A tape-shaped recording medium regulating member having a tape-shaped recording medium suction opening having a substantially U-shaped cross section is provided between the tape guide and the tape reel. Tape cartridge tape suction unit is characterized by being arranged to be closed by a tape-shaped recording medium. 2. The tape cartridge according to claim 1, wherein the tape-shaped recording medium regulating member is fixed integrally with the cover or the base plate.