JPH0955058A - Tape cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To stabilize the recording and/or reproducing performance to a magnetic tape and also to steadily prevent the generation of data error. SOLUTION: The tape cassette 1 is provided with a detection mechanism 50 for discriminating the specification of the magnetic tape 5. This detection mechanism 50 is provided at the front surface side of a main body 10 of cartridge and constituted of a reflection plate mounting member 51 formed as a block with nearly triangular sectional plane and the reflection plate 56 for making the light reflect from a light emitting part 59A of the side of the recording and/or reproducing device to a light receiving part 59B. A magnetic tape control member 60 provided with an opening part for sucking the magnetic tape is arranged on the surface of the reflection plate mounting member 51 confronted with 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 having a magnetic tape 105 as a recording medium is, as shown in FIGS. 10 and 11, 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 the base plate 115 formed of a metal plate such as a plate. Then, on the front side of the cartridge body 110, the recording and / or reproducing opening 1 into which the magnetic head 140 enters.
11 and a drive opening into which the magnetic tape drive means on the recording and / or reproducing apparatus side is inserted.

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.

Further, the base plate is provided with a reflection plate mounting member mounting hole 116 at a position close to one flanged guide pin 125B on the front side. A reflector mounting member, which is not shown and is formed as a block body having a substantially right triangle shape in cross section, is mounted in the reflector mounting member mounting hole 116. A mirror (not shown) is joined to the reflector mounting member on the slope facing the running path of the magnetic tape 105. Therefore, when the data cartridge 100 is mounted in the recording and / or reproducing apparatus, the detection light is emitted from the light emitting unit on the recording and / or reproducing apparatus side and reflected by the mirror, and the magnetic tape 105 is detected.
After passing through the position detecting hole, the light reaches the light receiving portion on the recording and / or reproducing device side, and the start end or the end of the magnetic tape 105 is detected.

When the data cartridge 100 having the above-described structure is loaded in the recording and / or reproducing apparatus, the magnetic tape driving means on the recording and / or reproducing apparatus side enters into the driving opening (not shown) and the belt. The drive roller is rotated. Then, in the data cartridge 100, as shown in FIG. 12, the magnetic head 140 on the recording and / or reproducing device side enters the recording and / or reproducing opening portion 111, and data can be recorded or read on the magnetic tape 105. Done. At this time, the data cartridge 100
In the state where the magnetic tape 105 is pressed by the magnetic head 140 on the recording and / or reproducing device side, the magnetic tape 105 generates a tape tension which is a resistance force to the magnetic head 140. And this magnetic tape 10
As shown in FIG. 13, 5 changes gradually as the winding rate of 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.

[0012]

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 when the direction of the tape tension shown by the arrow Z in FIG. 14 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 the magnetic tape 105 causes an off-track which is a vibration in the width direction shown in the Y direction in FIG. 14, 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 running direction indicated by the arrow X in FIG. 14, 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, the data cartridge 100 is a magnetic tape in the tape tension direction, the width direction, and the running direction during running due to the influence of the dimensional accuracy of 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 for stabilizing the recording and / or reproducing characteristics of a tape-shaped recording medium and for reliably preventing the occurrence of a data error. is there.

[0017]

A tape cartridge according to the present invention is constructed by combining a cover and a base plate, and a recording and / or reproducing device side recording and / or reproducing means is inserted into the front side of the tape cartridge. And / or the recording and / or reproducing opening is formed by interlocking the cartridge main body provided with the reproducing opening and a pair of tape guides located at both ends on the front side of the cartridge main body fed from one tape reel. The tape-shaped recording medium wound around the other tape reel in a crossing direction, the reflector mounting member formed as a substantially right-angled triangular block body, and emitted from the light emitting section on the recording and / or reproducing apparatus side The reflecting plate mounting member for reflecting the detection light to the light receiving portion on the recording and / or reproducing device side is provided on the slope facing the running path of the tape-shaped recording medium. Composed of a detection mechanism for detecting the specifications of the tape-shaped recording medium mounted on the front side of the cartridge body is composed of a reflector that. The tape cartridge is a tape-shaped recording medium regulating member having a tape-shaped recording medium suction opening in the center so as to be closed by the tape-shaped recording medium on the surface of the reflector mounting member of the detection mechanism facing the tape-shaped recording medium. Is provided.

That is, when the tape cartridge is loaded into 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 inside and outside by the running tape-shaped recording medium in the tape-shaped recording medium suction opening of the tape-shaped recording medium regulating member provided on the reflector mounting member of the detection mechanism, and the suction force is generated. Occurs. 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.

[0019]

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 FIGS. 1 and 2, the tape cartridge 1 is 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. Used.

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 or the like 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 in the front edge of the cover 2 and the base plate 3 on the front surface.
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 urged by a torsion spring 15 against a lid pin 14 provided upright at the front corner of the base plate 3 in a direction to close the recording and / or reproducing opening 12 and is in a cantilever state. It is rotatably supported by.

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 the tape supply reel 15 and the tape winding reel 15 around which the 1 / 4-inch wide magnetic tape 5 is wound. The take-up reel is rotatably supported.

The tape supply reel 17A and the tape take-up reel 17B are respectively connected to the reel hub 20 (20
A, 20B) are integrally formed on the lower reel member 18 (1
8A, 18B) and an upper reel member 19 (19A, 19B) combined with the lower reel member 18, and the start end and the end of the magnetic tape 5 are fixed to the reel hub 20 by unillustrated clampers. There is.

Further, the cartridge main body 10 is provided with a cylindrical guide pin 24 (24A, 24B) and a tape guide pin 27, which are formed integrally with the base plate 3 so as to stand upright. The magnetic tape 5 fed from the tape supply reel 17A is stretched over the flanged guide pin 24 and the tape guide pin 27.

The flanged guide pin 24 is provided with a flange portion 25 (25A, 25B) projecting around the upper edge thereof to prevent the magnetic tape 5 from slipping out. Therefore, the magnetic tape 5 has the flanged guide pin 2
When traveling between the four, the guide pin 24 with flanges is regulated by the respective flange portions 25 and the root portions 26 (26A, 26B) and along the front surface of the cartridge body 10 while being maintained at a constant height. It is run in the state.

The tape guide pin 27 is erected at a 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 27 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 a 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 stretched around a belt drive roller 31 via the central space of the tape supply reel 17A and the tape take-up reel 17B. 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 portion 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, in the cover 2, the magnetic tape 5 is combined with the erroneous recording prevention member 40 on the front surface side of the upper surface portion.
An erroneous recording prevention mechanism is provided for preventing the data signal recorded on the recording medium from being accidentally erased.

This erroneous recording preventing mechanism includes 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. Inside the groove 41 and the operation guide hole 42, near the slide groove 41 and in the vicinity of the slide groove 41, a substantially rectangular error recording prevention hole 4 is formed.
6 and an erroneous recording prevention member 40 that closes the operation guide hole 42 and the erroneous recording prevention hole 46.

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.

On the base plate 3, on the front surface side of the cartridge body 10, at a position close to one of the flanged guide pins 24B, a tape starting end portion and an end portion detecting mechanism 50 are provided.
Is provided. The detection mechanism 50 includes a reflector mounting member 51 formed as a block body having a substantially right-angled triangular cross section, and recording / reproducing device side detecting light emitted from a light emitting portion 59A on the recording / reproducing device side. Of the reflector plate attachment member 51 for reflecting the light to the light receiving portion 59B of the magnetic tape 5 and the reflector plate 56 provided on the slope 55 facing the traveling path of the magnetic tape 5. The base plate 3 is provided with a reflector mounting member mounting hole 52.

The reflector mounting member 51 is formed as a block body having a substantially right-angled triangular cross section. The reflection plate mounting member 51 is inserted into the reflection plate mounting member mounting hole 52 formed in the base plate 3 in the reflection plate mounting member 51.
Is attached so that a vertical surface 53 that is perpendicular to the base plate 3 faces the magnetic tape 5. The vertical surface 53 is provided with an opening 54 that is slightly smaller than the outer dimension of the vertical surface 53 so as not to interfere with the detection light described later. Further, a reflector plate 56 is joined to the inside of the reflector plate attachment member 51 on the inclined surface 55 that descends from above the vertical surface 53 of the reflector plate attachment member 51 toward the base plate 3 inward of the cartridge body 10. Also,
The bottom surface 57 of the reflection plate mounting member 51 facing the base plate 2 is covered with a transparent plate to close the reflection plate mounting member mounting hole 52 so that the detection light emitted from the light emitting unit 59A on the recording and / or reproducing apparatus side is transmitted. ing. Further, the corresponding cover portion of the detection mechanism 50 is provided with a transmission portion 58 formed of a polycarbonate material or the like having excellent transparency so that the detection light reflected by the reflection plate 56 is transmitted.

Reflector mounting member 5 thus constructed
1 is attached to a reflection plate attachment member attachment hole 52 formed in the base plate 3. Tape cartridge 1
When mounted on the recording and / or reproducing apparatus, the detection light is emitted from the light emitting portion 59A on the recording and / or reproducing apparatus side, reflected by the reflecting plate 56, and transmitted through the position detecting hole in the magnetic tape 5. Then, the light receiving section 59B on the recording and / or reproducing apparatus side
And the beginning or end of the magnetic tape 5 is detected.

Further, on the vertical surface 53 of the reflector mounting member 51, as shown in FIG.
Is attached. The magnetic tape regulating member 60 is made slightly smaller in height than the thickness of the cartridge body 10 by a metal material, a synthetic resin material, or the like.
The vertical surface 53 has a size substantially the same as that of the vertical surface 53 and is formed in a substantially rectangular plate shape. The magnetic tape regulating member 60 is also provided with a magnetic tape suction opening 61. The magnetic tape suction opening 61 has a size equal to or smaller than the width of the magnetic tape 5.

The magnetic tape regulating member 60 is shown in FIG.
As shown in, the reflector mounting member 51 is fixed to the vertical surface 53 with an adhesive or the like. The magnetic tape regulating member 6
It is needless to say that 0 may be integrated with the reflection plate mounting member 51 other than the case where the reflection plate mounting member 51 is fixed to the vertical surface 53 with an adhesive or the like.

That is, as shown in FIGS. 5 and 6, the magnetic tape regulating member 60 attached to the reflection plate attaching member 51 is in a state in which the magnetic tape suction opening 61 faces the magnetic tape 5 and is closed. It is attached. The magnetic tape regulating member 60 is arranged so that a clearance is provided between the magnetic tape 5 and the convex portion 62 forming the magnetic tape suction opening 61 so that surface friction does not occur.

Since the magnetic tape regulating member 60 is integrally provided with the reflection plate mounting member 51 in this manner, it is not necessary to provide a space for newly providing the magnetic tape regulating member 60, and a large magnetic tape regulating member is provided. 60 can be attached.

When the tape cartridge 1 configured as described above is loaded in the recording and / or reproducing apparatus, the erroneous recording prevention member 40 opens the erroneous recording prevention hole from the first position to the second position. The erroneous recording prevention hole 46 is closed by the moving operation to. When the erroneous recording prevention member 40 is inserted into the cartridge insertion opening of the recording and / or reproducing device side with the erroneous recording preventing member 40 closed, the tape cartridge 1 is erroneous on the recording and / or reproducing device side. By permitting the recording detection member 40 to enter the erroneous recording prevention hole 46, 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 lid opening means on the recording and / or reproducing apparatus side acts against the elastic force of the torsion spring 15 with the lid pin 14 as a fulcrum. The recording and / or reproducing opening 12 is opened by being rotated. The tape cartridge 1 has an open recording and / or reproducing opening 1
The magnetic head on the recording and / or reproducing apparatus side enters from 2 and contacts the magnetic tape 5. On the other hand, in the tape cartridge 1, the drive reproducing roller of the recording and / or reproducing apparatus side enters from the drive opening 36, and the magnetic tape 5 and the endless belt 30 are interposed so that the drive flange portion 32 of the belt driving roller 31. Contact with.

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.

When the tape cartridge 1 is loaded in the recording and / or reproducing apparatus, the cartridge body 10
Corresponding to an optical detection unit including a light emitting unit 59A and a light receiving unit 59B located on the front side of the. As shown in FIG. 7, the tape starting end portion and the trailing end portion detecting mechanism 50 causes the detection light emitted from the light emitting portion 59A of the optical detecting portion on the recording and / or reproducing device side to be directed to the slope 55 of the reflector mounting member 51. It is reflected by the joined reflector plate 56 and guided to the surface of the magnetic tape 5. When the magnetic tape 5 is driven to the start end and the end and is guided to the position where the start end detection hole and the end detection hole of the magnetic tape 5 are provided, the detection mechanism 50 of the tape start end and the end end detects the light emitted from the light emitting unit. The light is detected by the light receiving portion 59B, whereby the tape start end portion and the tape end portion are detected.

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 61 of the magnetic tape regulating member 60 that is closed by the magnetic tape 5 is located inside the magnetic tape suction opening 61 and outside the magnetic tape suction opening 61 via the magnetic tape 5. There is a difference in atmospheric pressure.
Therefore, the magnetic tape suction opening 61 generates a suction force to suck the magnetic tape 5 into the magnetic tape suction opening 61 by the width A, as shown in FIG. At this time, since a thin air film layer 65 is formed in the clearance between the magnetic tape 5 and the magnetic tape suction opening 61, 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 running 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. Further, the reflector mounting member 51 and the reflector 56 of the detection mechanism 50 are provided on the magnetic tape 5 and the magnetic tape suction opening 6.
Since the air film layer 65 is formed between the
Neither the generation of frictional heat due to friction nor the consequent melting of the reflection plate 56 occurs.

[0051]

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, the recording capacity of the tape cartridge can be further increased by setting the recording frequency higher and changing the format by changing the recording track.

Further, according to the tape cartridge of the present invention, since it is provided integrally with the reflector mounting member, it is possible to increase the size of the reflector mounting member without the need to newly provide a space. Therefore, the negative pressure generated in the suction opening of the tape-shaped recording medium is further increased, the recording and / or reproduction characteristics of the running tape-shaped recording medium are stabilized, and the occurrence of data error is steadily prevented. It

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.

Since the tape-shaped recording medium regulating member is provided integrally with the reflecting plate mounting member of the detection mechanism, the structure of the tape cartridge is complicated, and the production efficiency is deteriorated and the production cost is increased. There is also no.

[Brief description of drawings]

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

FIG. 2 is a perspective view showing an internal structure of the tape cartridge.

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

FIG. 4 is a perspective view showing a mounting state of a magnetic tape regulating member of the same tape cartridge on a reflecting plate mounting member.

FIG. 5 is a cross-sectional view of essential parts showing a state in which a magnetic tape restricting member is attached to a reflecting plate attaching member of the tape cartridge.

FIG. 6 is a perspective view of relevant parts showing a state in which a magnetic tape restricting member is attached to a reflecting plate attaching member of the tape cartridge.

FIG. 7 is a cross-sectional view of essential parts showing a state in which detection light is reflected by a reflection plate of the detection mechanism of the tape cartridge.

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

FIG. 11 is a perspective view of a base plate of the data cartridge.

FIG. 12 is a plan view showing a contact state between a magnetic tape and a magnetic head of the data cartridge.

FIG. 13 is a characteristic diagram of tape tension with respect to the winding rate of the magnetic tape of the data cartridge.

FIG. 14 is a perspective view of a main part for explaining a vibration direction of a magnetic tape of the 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 13 Lid 17A, 17B Tape Reel 50 Detecting Mechanism 51 Reflector Mounting Member 52 Reflector Mounting Member Mounting Hole 53 Vertical Surface 55 Slope 56 Reflector 60 Magnetic tape regulating member 61 Magnetic tape suction opening 65 Air film layer

Claims (2)

[Claims] 1. A cartridge main body which is constructed by combining a cover and a base plate, and is provided with a recording and / or reproducing opening into which recording and / or reproducing means of a recording and / or reproducing apparatus is inserted on the front side. And a pair of tape guides located at both ends on the front surface side of the cartridge main body, which is unwound from one tape reel, crosses the recording and / or reproducing opening and is wound around the other tape reel. Tape-shaped recording medium, a reflector mounting member formed as a block body having a substantially right-angled triangular cross section, and recording and / or reproducing apparatus side for detecting light emitted from a light emitting section on the recording and / or reproducing apparatus side. And a reflecting plate provided on the slope facing the traveling path of the tape-shaped recording medium of the reflecting plate mounting member, the cartridge main body. It is equipped with a detection mechanism that detects the specifications of the tape-shaped recording medium attached to the front side, is positioned perpendicular to the base plate, and the surface of the reflector mounting member facing the tape-shaped recording medium is blocked by the tape-shaped recording medium. As described above, the tape cartridge, wherein the tape-shaped recording medium regulating member having the tape-shaped recording medium suction opening is provided in the center. 2. The tape cartridge according to claim 1, wherein the tape-shaped recording medium regulating member is provided integrally with the reflector mounting member.