JPH06282914A - Data cartridge - Google Patents

Abstract

(57) [Summary] [Purpose] Among the data cartridges that can be inserted into the recording / reproducing device from the front side and the side side, the data cartridge that uses a wide magnetic tape currently uses a narrow magnetic tape. To prevent erroneous insertion from either the front side or the side into the existing recording / reproducing device developed for the data cartridge of. A base of a second data cartridge C2 in which the tape width of the magnetic tape is larger than a width of the base plate of the first data cartridge in which the tape width of the magnetic tape is small and the width of the notch in the front-rear direction. The width X ₂ of the plate in the left-right direction is increased, and the width Y ₃ of the notch 14 in the front-rear direction is decreased.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data cartridge most suitable for high density recording (backup memory) of CPU data, for example.

[0002]

2. Description of the Related Art Conventionally, for example, Japanese Patent Publication No. 52-14976 has been known as a data cartridge for high-density recording (backup memory) of CPU data.

As shown in FIGS. 8 to 11, a conventional data cartridge of this type (hereinafter referred to as a first data cartridge) C1 is mounted on a base plate 2 made of an aluminum plate or the like which is a lower half of the cartridge 1. It is formed by screwing a thin box-shaped upper cover 3 which is an upper half formed of a translucent synthetic resin. A pair of left and right upper and lower flanged tape reels 4 formed of synthetic resin are rotatably supported on the base plate 2, and a magnetic tape 5 is wound around the pair of left and right tape reels 4. This magnetic tape 5 is guided by three flanged tape guides 6 attached to the base plate 2 and is hung along the inside of the front wall 3 a of the upper cover 3. Further, a drive roller 7 and a pair of left and right corner rollers 8 formed of synthetic resin are rotatably supported at substantially the center of the front edge 2a on the base plate 2 and both left and right corners on the rear edge 2b side. ing. An elastic drive belt 9 formed of a rubber belt or the like is wound between the drive roller 7 and the pair of left and right corner rollers 8 in a substantially T shape with a strong tension. A pair of left and right drive portions 9a between the drive roller 7 of the drive belt 9 and both corner rollers 8 are provided on the outer circumference of the pair of left and right tape winding portions 5a of the magnetic tape 5 wound around the tape reels 4. Being pressed against.

A pair of left and right tape reels 4 and three rollers 7 and 8 are rotatably supported on the outer periphery of a support shaft 10 made of a total of five metal or the like vertically planted on the base plate 2 by press fitting or the like. Has been done. A tape end photodetection mirror 12 is attached to the inside of the running path of the magnetic tape 5.

A pair of left and right groove-like portions 13 cut in parallel from the front wall 3a are formed parallel to each other outside the left and right side walls 3b of the upper cover 3, and these groove-like portions 13 are formed.
Inside, a pair of left and right positioning notches 14 are formed on the front end sides of the left and right end portions 2c of the base plate 2.

A head which is cut out in a substantially trapezoidal shape so as to straddle the base plate 2 and the ceiling wall 3c of the upper cover 3 on one side of the drive roller 7 on the side of the front edge 2a of the base plate 2. An insertion hole 15 is formed, and this head insertion hole 15
An opening / closing door 16 for opening and closing is rotatably attached between the base plate 2 and the ceiling wall 3c of the upper cover 3 via a fulcrum shaft 17.

The drive roller 7 has a large-diameter roller portion 7b integrally formed on an upper portion of a small-diameter roller portion 7a around which the drive belt 9 is wound, and the front side of the large-diameter roller portion 7b is a front wall of the upper cover 3. It is exposed in the roller insertion hole 18 formed in 3a.

Next, a recording / reproducing apparatus for recording / reproducing the first data cartridge C1 of this type has been conventionally used in FIG.
The first data cartridge C1 as shown in FIG.
a recording and reproducing apparatus of the front insertion type to be inserted from a side in the direction of arrow a, the first data cartridge C1 to the left and right side surfaces 1b, arrows from either 1c a ₁ direction or arrow a ₂
There are two types of side-insertion type recording and reproducing devices that are inserted in the direction.

Therefore, first, a front face insertion type recording / reproducing apparatus D1 will be described with reference to FIGS. That is, in this front insertion type recording / reproducing apparatus D1, a cartridge insertion space 24 is horizontally formed in a cartridge insertion opening 23 formed in the front panel 22, and a pair of left and right base plates are inserted into both left and right side walls 24a thereof. The grooves 25 are formed horizontally and in parallel. A pair of left and right cartridge front and rear position restricting portions 26 are formed integrally with the left and right side walls 24a at the ends of the pair of left and right base plate insertion grooves 25 on the arrow a direction side, which is the cartridge insertion direction. In addition, a pair of left and right base plate insertion grooves 25 are formed with downward convex portions at a total of three places on the downward upper side surface 25a.
One cartridge vertical position restricting portion 27 is integrally molded. A pair of left and right cartridge positioning rollers 28 are attached to the pair of left and right base plate insertion grooves 25 in the vicinity of the pair of left and right cartridge front-rear position restricting portions 26.

The pair of left and right cartridge positioning rollers 28 are arranged in a pair of left and right notches 29 formed in the left and right side walls 24a. Then, a pair of left and right plate springs 30 parallel to the pair of left and right base plate insertion grooves 25.
Is fixed to the lower surfaces of the left and right side walls 24a, and a pair of left and right cartridge positioning rollers 28 are rotatably supported at the other ends of the pair of left and right leaf springs 30.
The pair of left and right leaf springs 30 urge the pair of left and right cartridge positioning rollers 28 to move upward in the direction of arrow b. A leaf spring 31 is attached to the center of the bottom wall 24b of the cartridge insertion space 24 at a position deviated to the cartridge insertion port 23 side to bias the cartridge 1 in the direction of arrow b.

Then, as shown in FIGS. 10 to 12, the front edge 2a of the base plate 2 of the first data cartridge C1.
The first data cartridge C1 from the cartridge insertion opening 23 of the recording / reproducing apparatus D1 into the cartridge insertion space 24 in the direction of arrow a.

At this time, the left and right end portions 2c of the base plate 2 are inserted into the pair of left and right cartridge insertion grooves 25 in the direction of the arrow a, so that the base plate 2 is located at the central portion of the leaf spring 3.
1 but the door 16 is opened immediately before the insertion is started.
The free end portion 16a of the door is brought into contact with one side wall 24a, and the opening / closing door 16 is moved around the fulcrum shaft 17 as shown by the alternate long and short dash line in FIG. 14 against the built-in spring (not shown). The door is opened in the c direction.

Then, as shown in FIGS. 11 and 12,
When the first data cartridge C1 is completely inserted into the cartridge insertion space 24 from the direction of the arrow a, the first data cartridge C1 is positioned with high accuracy.

That is, first, the left and right ends of the front edge 2a of the base plate 2 are brought into contact with the pair of left and right cartridge front and rear position restricting portions 26 in the direction of the arrow a, and the insertion of the data cartridge C1 is stopped almost at the same time. The pair of left and right cartridge positioning rollers 28 are engaged in the pair of left and right positioning notches 14 of the base plate 2 in the direction of arrow b from below by the pair of left and right leaf springs 30. Then, the pair of left and right cartridge positioning rollers 28 press the front ends 14a of the pair of left and right positioning notches 14 diagonally upward and upward in the direction of arrow d.

As a result, the pair of left and right positioning rollers 28
Also, the entire first data cartridge C1 is urged to move in both directions of the arrows a and b in the cartridge insertion space 24 by the leaf spring 31 at the central portion, so that the front end edge 2a of the base plate 2 becomes a pair of left and right cartridge front and rear. Position restriction unit 26
At the same time as being elastically pressed in the direction of arrow a, the left and right ends 2c of the base plate 2 are elastically pressed by the three cartridge vertical position restricting portions 27 in the direction of arrow b, so that the first data cartridge C1 becomes a cartridge. It is positioned in the insertion space 24 with high accuracy. Then, the pair of left and right cartridge positioning rollers 28 lock the first data cartridge C1 in the cartridge insertion space 24.

Then, the first data cartridge C
When the insertion of 1 is completed, as shown in FIG. 14 and FIG.
Magnetic head 3 attached to the recording / reproducing device D1 side
2 and the magnetic tape drive roller 33 are relatively inserted in the magnetic head insertion hole 15 and the roller insertion hole 18 from the direction of the arrow a ', respectively, and the magnetic head 32 and the drive roller 33 are attached to the magnetic tape 5 and the drive roller 7, respectively. It is pressed against the large-diameter roller portion 7b. The magnetic tape drive roller 33
Is formed of a rubber roller or the like.

Then, the completion of the insertion of the first data cartridge C1 is detected by the cartridge-in switch 34. And the first record from the CPU,
In response to the reproduction command signal, as shown in FIG. 14, the magnetic tape drive motor (not shown) rotationally drives the drive roller 7 through the magnetic tape drive roller 33, for example, in the direction of arrow e, and the drive belt 9 is moved to the arrow direction. The tape is driven to rotate in the f direction, and the two tape reels 4 are driven to rotate in the arrow f direction by the two drive parts 9a through the tape winding parts 5a, and the magnetic tape 5 moves at a high speed of 25 to 120 inch / sec in the arrow g direction. The magnetic head 32 is used to record and reproduce CPU data on and from the magnetic tape 5. .

Next, there are three side-insertion type recording / reproducing apparatuses.
First, an outline of a side-insertion type first recording / reproducing apparatus D2 will be described with reference to FIGS. 13 and 14.
This is because the first data cartridge C1 is attached to one side surface 1
The cartridge insertion opening 52 of the front panel 51 from the side b
The cartridge is inserted in the cartridge insertion space 53 from the direction of arrow a ₁ .

By inserting the first data cartridge C1 from the arrow a ₁ direction, the one side surface 1b pushes the cartridge eject lever 54 in the arrow a ₁ direction against the eject spring (not shown). A front-and-rear corner regulating portion 55, a front-and-rear cartridge position regulating portion 56, in which a front corner portion of the end portion 2c of the base plate 2 on the side surface 1b side is formed on one side wall 53a of the cartridge inserting space 53, and a cartridge up-and-down position regulating portion 56 The end portion 2c of the base plate 2 on the side of the other side surface 1c is inserted in the position regulating portion 57 and inside the retaining step 58 formed in the cartridge insertion opening 52 in the direction of arrow b '. When it falls, the first data cartridge C1 is horizontally locked in the cartridge insertion space 53.

At this time, the leaf spring 60 having the roller 59 is relatively inserted from the direction of the arrow a ₂ into the notch 14 on the side 1b side, and the front end 14a of the notch 14 is moved by the leaf spring 60. Since the base plate 2 is pressed in the direction of arrow a, the front end 2a of the base plate 2 is pressed against the cartridge front-rear position restricting portion 55 from the direction of arrow a.

The bottom surface 5 of the cartridge insertion space 53
Since the plurality of balls 61 attached to 3b press and bias the bottom surface of the first data cartridge C1 in the direction of arrow b by the plurality of compression springs 62, one end 2c of the base plate 2 has a cartridge vertical position restricting portion. It is crimped to 57 from the direction of arrow b.

Next, the first data cartridge C1
When the operation lever (not shown) is operated after the insertion of the data is completed, the other side surface 1 of the first data cartridge C1 is
At the same time as the cartridge vertical position restricting lever 63 is projected from the direction of arrow a'to the upper end 2c of the base plate 2 on the c side, at the same time, the cartridge positioning roller 64 is projected to the lower part of the end 2c from the direction of arrow a '. The cartridge positioning roller 64 is engaged with the front end 14a of the other notch 14 on the other side surface 1c side. Then, the cartridge positioning roller 64 is attached to the front end 14a of the notch 14.
Is pressed diagonally upward and in the direction of arrow d, and the front end 2a of the base plate 2 is crimped to the other cartridge front-rear position restricting portion 55a from the direction of arrow a on the other side surface 1c side. At this time, the cartridge pressing assisting member 65 provided in the vicinity of the cartridge insertion port 52 assists the base plate 2 in the direction of arrow b.

Immediately before the insertion of the first data cartridge C1 into the cartridge insertion space 53 from the direction of the arrow a ₁ is completed, the opening / closing door 16 is opened in the direction of the arrow c as shown by the one-dot chain line in FIG. When the door is operated and the operation lever is operated, the magnetic head 22 and the magnetic tape drive roller 3
3 is the head insertion hole 15 of the first data cartridge C1
And, it is inserted into the roller insertion hole 18 from the direction of the arrow a ', and these are pressure-bonded to the magnetic tape 5 and the drive roller 7, respectively, so that the recording and reproduction described above can be performed.

Next, an outline of the second side insertion type recording / reproducing apparatus D3 will be described with reference to FIGS. This is because the first data cartridge C1 has one side surface 1b.
The cartridge is inserted from the side through the cartridge insertion opening 52 of the front panel 51 into the cartridge insertion space 53 from the arrow a ₁ .

At this time, the first data cartridge C1
Is inserted from the direction of the arrow a ₁ on the slide table 67 that is horizontally arranged on the bottom surface in the cartridge insertion space 53. First, as shown in FIG. One notch 1 at the end 2c of the
The reverse insertion preventing block 68 fixed at a fixed position is relatively inserted into the position 4 from the direction of the arrow a ₂ .

At this time, one end portion 2c of the base plate 2 is brought into contact with the cartridge lateral position restricting portion 56 formed on the one side wall 67a of the slide table 67 from the direction of the arrow a ₁ and the leaf spring 69 is formed. And the ball 71 pressed by the compression spring 70 presses the cartridge vertical position restricting portion 57 from the direction of arrow b. Immediately before this, the opening / closing door 16 is indicated by the arrow c as shown by the alternate long and short dash line in FIG.
The door is opened in the direction.

Then, after that, when the first data cartridge C1 is slightly strongly pressed in the direction of the arrow a ₁ , as shown in FIG. 16, the slide table 67 is unlocked and the slide table 67 is moved to the arrow a. It is slid in _two directions by a certain distance.

Then, on the side surface 1b side of the first data cartridge C1, the front end portion 14a of the one notch 14 of the one end portion 2c of the base plate 2 is rotated by the cartridge positioning lever 72 rotated in the direction of the arrow h. Is pushed in the direction of the arrow a, and the front end 2a of the base plate 2 is moved to the side wall 67.
The cartridge front-rear position restricting portion 55 formed in a is crimped from the direction of arrow a.

At the same time, the cartridge position lock lever 73 rotated in the direction of arrow i is engaged with the other end 2c of the base plate 2 on the side of the other side surface 1c of the first data cartridge C1. Lock the base plate 2.

At the same time, the magnetic head 32 and the magnetic tape drive roller 33 are connected to the first data cartridge C.
It is inserted into the head insertion hole 15 and the roller insertion hole 18 of No. 1 from the direction of the arrow a ', and these are pressure-bonded to the magnetic tape 5 and the drive roller 7, respectively. In addition, 74 is an insertion guide.

Next, the outline of the side-insertion type third recording / reproducing apparatus D4 will be described with reference to FIGS. This is because the first data cartridge C1 is attached to the other side surface 1c.
The cartridge is inserted from the side into the cartridge insertion space 53 through the cartridge insertion opening 52 in the direction of arrow a ₂ .

The first data cartridge C1 is inserted into the cartridge insertion space 53 from the direction of arrow a, and the other side surface 1c is brought into contact with the cartridge eject lever 54 shown by the dotted line in FIG. The opening / closing lid 76 for opening / closing 52 is closed in the direction of arrow a ₂ .

Then, the first data cartridge C
One side surface 1b of 1 is pressed in the direction of arrow a ₂ by the cartridge pressing portion 77 of the opening / closing lid 76, and the base plate 2 is supported at three points on the three balls 78 provided on the bottom surface 53b of the cartridge insertion space 53. To be done.

[0034] In other aspects 1c side, the other end portion 2c of the base plate 2 is crimped from an arrow a ₂ direction to the cartridge position in the lateral direction restricting portion 56, closing the lid 76 is shown by a solid line in FIG. 19 The lid is automatically locked.

A pair of left and right notches 1 of the base plate 2 are formed by a pair of balls 78 arranged on the left and right sides on the front side of the first data cartridge C1 by a compression spring 79.
4, the front end 14a of the base plate 4 is pressed in the direction of the arrow d so that the left and right ends 2c of the base plate 2 are attached to the pair of left and right cartridge front and rear position restricting portions 55 and the cartridge vertical position restricting portion 57 by the arrow a,
It is crimped from the b direction.

Then, at the start of closing the opening / closing lid 76,
The open / close door 16 is opened in the direction of arrow c as shown by the alternate long and short dash line in FIG. 10, and at the end of closing the open / close lid 76, the drive roller 7 is pressed against the magnetic tape drive roller 33 from the direction of arrow a. , The magnetic head 32 moves the magnetic tape 5 to the arrow a '.
The recording and reproduction described above can be performed by pressure-bonding from the direction. Incidentally, 80 and 81 are the first data cartridge C1.
Is a leaf spring that presses the auxiliary.

By the way, the conventional first data cartridge C1 of this kind includes a small cartridge (hereinafter referred to as S type) and a large cartridge (hereinafter referred to as L type).
Although various types of cartridges are standardized, in both S and L type cartridges, the tape width W ₁ of the magnetic tape 5 is reduced to 1/4 inch as shown in FIGS. The standards were unified.

By the way, as shown in FIG.
In the case of the S type, each dimension of the width X in the left-right direction, the depth Y in the front-rear direction, and the thickness Z of the data cartridge C1 is X =
80.98 mm, Y = 61.1 mm, Z = 15.0 mm
Standard is standardized, and in the case of the L type, X = 152.
The specifications were standardized to be 4 mm, Y-101.6 mm, and Z = 17.1 mm.

As described above, the conventional first data cartridge C1 has a problem that the recording capacity of the magnetic tape 5 is small because the tape width W ₁ of the magnetic tape 5 is as small as 1/4 inch. It was

Therefore, without changing the outer diameter dimensions of the width X, the depth Y and the thickness Z of the first cartridge 1,
As shown in FIG. 22C, the tape width W of the magnetic tape
₂ is expanded to a wide width of, for example, 8 inches, and the magnetic tape 5
It is conceivable to expand the recording capacity of the.

At this time, in connection with the base plate 2 of the first data cartridge C1 being formed of an aluminum plate or the like, as shown in FIGS. 22A and 22C, the tape of the magnetic tape 5 is used. Even if the width is expanded from W ₁ to W ₂ , the height of these magnetic tapes 5 must be the lower end reference P _1, and the upper end 5c of the magnetic tape 5 expanded to the width W ₂ has the width W ₁
Of the magnetic tape 5 is displaced upward by a height H ₁ corresponding to W ₂ −W ₁ .

On the other hand, as shown in FIGS. 22A, 22B and 22C, the mounting height of the magnetic head 32 in the recording / reproducing apparatus D ₁ is also between the upper limit position P ₂ and the lower limit position P _3. There are variations in height H ₂ .

[0043]

Therefore, a small width (1/4
Inch) Current 1st using W ₁ magnetic tape 5
The above-mentioned current recording / reproducing devices D1, D2, D which have been developed to record and reproduce the data cartridge C1 of
When a new second data cartridge using the wide (8 mm) W ₂ magnetic tape 5 is erroneously inserted into D3 and D4, in particular, as shown in FIG.
When the mounting height of 2 is lowered to the lower limit position P ₃ , the magnetic head 3 which is relatively pressure-bonded from the direction of arrow a
2 from the upper edge 32a of the magnetic tape 5 of the wide W ₂
Since the upper end 5c of the magnetic head 32 protrudes upward, the upper end 5c of the wide width W ₂ is bent and damaged by the upper end edge 32a of the magnetic head 32.
There is a problem of receiving fatal damage.

The present invention has been made to solve the above problems, and in a data cartridge which can be inserted into a recording / reproducing apparatus from two directions, a front side and a side side, data using a wide magnetic tape is used. A data cartridge capable of preventing erroneous insertion from either the front side or the side side into an existing recording / reproducing apparatus developed for an existing data cartridge using a narrow magnetic tape. Is intended to provide.

[0045]

SUMMARY OF THE INVENTION To achieve the above object, a day cartridge of the present invention comprises a cartridge constituted by a base plate and an upper cover, and a pair of rotatably supported inside the cartridge. A tape reel, one drive roller and a pair of corner rollers, a magnetic tape wound around the pair of tape reels, and a pair of drive units wound around the drive roller and the corner roller in a substantially T-shape. Is provided with a drive belt driven by the drive roller in a state of being pressed against the outer circumference of the tape winding portion of the pair of tape reels, and a pair of left and right positioning notches formed at both left and right ends of the base plate. In a data cartridge configured to be inserted into a recording / reproducing apparatus from two directions of a front side and a side of the cartridge, Of the base plate of the second data cartridge in which the tape width of the magnetic tape is large with respect to the width of the base plate in the left-right direction and the width of the notch in the front-rear direction of the first data cartridge having a small loop width. The width in the left-right direction is increased, and the width in the front-rear direction of the notch is decreased. At this time, the width of the upper cover of the second data cartridge in the left-right direction is increased, or a pair of left and right tapered surfaces is formed on the front end sides of the left and right ends of the base plate of the first data cartridge. Is preferred.

[0046]

According to the data cartridge of the present invention having the above-mentioned structure, the magnetic tape is magnetic with respect to the width in the left-right direction of the base plate and the width in the front-rear direction of the notch of the first data cartridge in which the tape width of the magnetic tape is small. Since the width of the base plate of the second data cartridge having a large tape width in the left-right direction is increased and the width of the notch in the front-rear direction is decreased, the second data cartridge can be mounted on either the front side or the side side. Even from the direction, it can be prevented from being erroneously inserted into the existing recording / reproducing apparatus.

[0047]

Embodiments of the present invention will be described below with reference to FIGS. It should be noted that the same reference numerals are given to the same structural portions as those in FIGS.

[0048]

[The first embodiment] First, FIGS. 1 and 2 merely indicate a first embodiment, to expand the tape width W ₂ for example 8 mm, the new use of the magnetic tape 5 which has been increased recording capacity Second data cartridge C which is a data cartridge
2 is shown. Of the outer diameter dimensions X, Y, Z of the second data cartridge C2, only the width X in the left-right direction is shown in FIG. 9 and the tape width W ₁ is 1/4 inch. It is slightly larger (several millimeters) than the first data cartridge C1 which is the current data cartridge, and the other outer diameter dimensions X and Y are the same as those of the first data cartridge C1. .

That is, first, the second data cartridge C2 is moved from the left and right end portions of the ceiling wall 3c of the base plate 2 and the upper cover 3 toward the left and right sides to the left and right of the first data cartridge C1 shown in FIG. The pair of left and right overhanging portions 91 overhanging from the width X in the direction to several mmX ₁ are integrally formed,
The width of the base plate 2 and the upper cover 3 in the left-right direction is changed from X to X _{2.
(However, X 2 = -X + 2X 1} ) has expanded to. In addition,
At this time, the pair of left and right overhanging portions 91 of the base plate 2 extends from the rear ends 14b of the pair of left and right notches 14 to the rear end edges 2b of the base plate 2.
Up to the length L ₁ , and the overhanging portion 91 of the upper cover 3 is formed over the entire area of the front and rear ends thereof.

Next, the second data cartridge C2
Shows the rear ends 14b of the pair of left and right notches 14 of the base plate 2 by a few mm in the direction of the arrow a, which is the front side, and shows the width Y ₃ of the pair of left and right notches 14 in the front-rear direction in FIG. A pair of left and right notches 14 of the first data cartridge C1
It is made smaller than the width Y _{1 in} the front-rear direction by a few mmY ₂ .

[0051]

[Second Embodiment] FIG. 3 shows a second embodiment of the present invention, in which the left and right ends 2c of the base plate 2 of the second data cartridge C2 are directed toward the front end 2a in the direction of arrow a. A taper surface 92 having an angle θ ₁ is formed so as to be a recess, and an arrow of both left and right end portions 2c of the base plate 2 into the base plate insertion groove 25 of the recording / reproducing apparatus dedicated to the second data cartridge C2 is formed. This is to facilitate insertion from the a direction.

Next, the second data cartridge C2
The function of preventing erroneous insertion into the recording / reproducing devices D1, D2, D3, and D4 will be sequentially described. First, FIG. 4 illustrates the prevention of erroneous insertion of the second data cartridge C2 into the front insertion type recording / reproducing device D1 for the first data cartridge C1. If an attempt is made to erroneously insert the device D1 in the direction of the arrow a, the pair of left and right overhanging portions 91 formed on the base plate 2 will be caught at the cartridge insertion port 23, and the left and right end portions 2c of the base plate 2 will be removed. It cannot be inserted into the pair of left and right base plate insertion grooves 25. In this case, depending on the model, the left and right ends of the ceiling wall 3c of the upper cover 3 are caught in the cartridge insertion opening 23 and cannot be inserted.

Next, FIG. 5 shows the first data cartridge C.
A description will be given of prevention of erroneous insertion of the second data cartridge C2 into the first recording / reproducing apparatus D2 of the side insertion type for 1 in which the second data cartridge C2 is inserted into the cartridge inserting opening 52 of the recording / reproducing apparatus D2. Since the width of the base plate 2 in the left-right direction is expanded to X ₂ when the cartridge is inserted into the cartridge insertion space 53 from the direction indicated by the arrow a ₁ , the other end 2c of the base plate 2 is prevented from coming off. The second data cartridge C2 cannot be completely inserted into the cartridge insertion space 53 because the second data cartridge C2 rides on the disk 58.

Next, FIG. 6 shows the first data cartridge C.
The second data cartridge C2 is a cartridge insertion port 52 of the recording / reproducing apparatus D3 for preventing erroneous insertion of the second data cartridge C2 into the second side-insertion-type second recording / reproducing apparatus D3. When the cartridge is inserted into the cartridge insertion space 53 from the direction from the arrow a ₁ , the width Y _{3 in} the front-rear direction of the pair of left and right notches 14 of the base plate 2 is narrowed, so that one of the notches 14 is prevented from being inserted reversely. The second data cartridge C2 is completely inserted into the cartridge insertion space 53 because it cannot be inserted into the cartridge 68 and one end 2c of the base plate 2 collides with the reverse insertion prevention block 68. I can't.

Next, FIG. 7 shows the first data cartridge C.
The second data cartridge C2 is a cartridge insertion port 52 of the recording / reproducing device D4 for preventing erroneous insertion of the second data cartridge C2 into the side-insertion-type third recording / reproducing device D4. Since the width of the base plate 2 in the left-right direction is expanded to X ₂ when it is inserted into the cartridge insertion space 53 from the direction indicated by the arrow a ₂ , the opening / closing cover 76 is completely moved to the closed position indicated by the one-dot chain line. Can not be closed and locked.

As described above, the second data cartridge C2 has front and side surfaces that are compatible with any of the current recording / reproducing devices D1, D2, D3 and D4 developed for the first data cartridge C1. It cannot be erroneously inserted from either side. Therefore, it is possible to prevent the upper end 5c of the magnetic tape 5 having the wide width W _{2 from} being damaged by the erroneous insertion, as described with reference to FIG.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention.

[0058]

The data cartridge of the present invention constructed as described above has the following effects. Claim 1
A second tape having a larger tape width than the width of the base plate of the first data cartridge having a small tape width of the magnetic tape in the left-right direction and a width of the notch in the front-rear direction.
The width of the base plate of the data cartridge is increased in the left-right direction and the width of the notch in the front-rear direction is decreased so that the second data cartridge can be used in the current recording / reproducing apparatus from both the front side and the side side. Since the erroneous insertion can be prevented in advance, it is possible to prevent the erroneous insertion from damaging the magnetic tape of the second data cartridge.

According to the second aspect, since the width of the upper cover of the second data cartridge in the left-right direction is formed large, it is possible to prevent erroneous insertion of the second data cartridge into the existing recording / reproducing apparatus.

Since a pair of left and right taper surfaces are formed on the front end sides of the left and right end portions of the base plate of the first data cartridge, the second data cartridge can be smoothly transferred to a recording / reproducing device dedicated to the data cartridge. Easy to insert.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view showing a second data cartridge according to a first embodiment of the present invention.

2A is a sectional view taken along the line AA of FIG. 1, and FIG. 2B is a sectional view similar to the first data cartridge shown in FIG.

FIG. 3 is a partially cutaway plan view showing a second data cartridge according to the second embodiment of the present invention.

FIG. 4 is a partially cutaway side view for explaining prevention of erroneous insertion of the second data cartridge of the present invention into a front insertion type recording / reproducing apparatus.

FIG. 5 is a partially cutaway side view for explaining prevention of erroneous insertion of the second data cartridge of the present invention into the side insertion type first recording / reproducing apparatus.

FIG. 6 is a partially cutaway plan view for explaining prevention of erroneous insertion of the second data cartridge of the present invention into the second side insertion type recording / reproducing apparatus.

FIG. 7 is a partially cutaway plan view for explaining prevention of erroneous insertion of the second data cartridge of the present invention into the third recording / reproducing apparatus of side insertion type.

FIG. 8 is an exploded perspective view showing a current first data cartridge.

FIG. 9 is a perspective view illustrating an outer diameter dimension of a current first data cartridge.

FIG. 10 is a partially cutaway plan view showing a current first data cartridge.

FIG. 11 is a partially cutaway plan view showing a state in which a current first data cartridge is inserted into a front insertion type recording / reproducing apparatus.

12A is a sectional view taken along the line BB of FIG. 11, and FIG. 12B is a sectional view taken along the line CC of FIG. 11C is a cross-sectional view taken along the line C-D in FIG. 11.

FIG. 13 is a partially cutaway plan view showing a state in which a current first data cartridge is inserted into a side insertion type first recording / reproducing apparatus.

14A is a sectional view taken along the line EE of FIG. 13, and FIG. 14B is a sectional view taken along the line FF of FIG.

FIG. 15 is a partially cutaway plan view showing a state before locking, in which the current first data cartridge is inserted into the side insertion type second recording / reproducing apparatus.

16 is a partially cutaway plan view showing a state after locking of FIG.

17 is a sectional view taken along the line GG in FIG.

18 (A) is a cross-sectional view taken along the line H-H of FIG. 16, and FIG. 18 (B) is a cross-sectional view taken along the line I-I of FIG. 16C is a sectional view taken along the line JJ of FIG.

FIG. 19 is a partially cutaway plan view showing a state in which a current first data cartridge is inserted into a side surface insertion type third recording / reproducing apparatus.

20 is a sectional view taken along the line KK of FIG.

21A is a cross-sectional view taken along the line LL of FIG. 19, and FIG. 21B is a cross-sectional view taken along the line LL of FIG. 19C is a cross-sectional view taken along the line MM in FIG. 19.

22 (A) and (B) are drawings showing the positional relationship between the narrow magnetic tape of the first data cartridge and the magnetic head of the recording / reproducing apparatus, and FIG.
3 is a drawing showing the relationship between the wide magnetic tape of the data cartridge and the magnetic head of the recording / reproducing apparatus.

[Explanation of symbols]

C1 First data cartridge C2 Second data cartridge D1, D2, D3, D4 Recording / reproducing apparatus 1 Cartridge 2 Base plate 2c Left and right ends of base plate 3 Upper cover 3c Ceiling wall of upper cover 4 Tape reel 5 Magnetic tape 7 Drive roller 8 Corner roller 9 Drive belt 9a Drive portion of drive belt 14 Positioning notch 23, 52 Cartridge insertion port 24, 53 Cartridge insertion space 25 Base plate insertion groove 26, 55 Cartridge front and rear position regulation unit 56 Cartridge left and right position regulation unit 27, 57 Cartridge vertical position regulating portion 28 Cartridge positioning roller 32 Magnetic head 91 Base plate overhanging portion 92 Tapered surface W ₁ Small tape width of magnetic tape W ₂ Wide tape width of magnetic tape X Left and right of first data cartridge Width in direction X ₂ Width of the second data cartridge in the left-right direction Y ₁ Width of the notch of the first data cartridge in the front-rear direction Y ₃ Width of the notch of the second data cartridge in the front-rear direction

[Procedure amendment]

[Submission date] January 12, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Fig. 21

[Correction method] Change

[Correction content]

21A is a cross-sectional view taken along the line LL of FIG. 19, and FIG. 21B is a cross-sectional view taken along the line MM of FIG. 19C is a sectional view taken along the line NN of FIG.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Fig. 19

[Correction method] Change

[Correction content]

FIG. 19

[Procedure 3]

[Document name to be corrected] Drawing

[Correction target item name] Fig. 22

[Correction method] Change

[Correction content]

FIG. 22

Claims (3)

[Claims] 1. A cartridge comprising a base plate and an upper cover, a pair of tape reels rotatably supported in the cartridge, a drive roller and a pair of corner rollers, and the pair of tape reels. In a state in which the magnetic tape wound around the tape is wound around the drive roller and the corner roller in a substantially T shape, and the pair of drive portions are pressed against the outer circumference of the tape winding portion of the pair of tape reels. The cartridge is provided with a drive belt driven by the drive roller and a pair of left and right positioning notches formed at both left and right ends of the base plate, and is inserted into the recording / reproducing apparatus from two directions of a front side and a side of the cartridge. In the data cartridge configured as described above, in the left and right direction of the base plate of the first data cartridge in which the tape width of the magnetic tape is small. And the width in the left-right direction of the base plate of the second data cartridge in which the tape width of the magnetic tape is larger than the width in the front-rear direction of the notch, and the width in the front-rear direction of the notch is reduced. A data cartridge and a recording / reproducing device characterized by the above. 2. The data cartridge according to claim 1, wherein the width of the upper cover of the second data cartridge in the left-right direction is increased. 3. The data cartridge according to claim 1, wherein a pair of left and right tapered surfaces are formed on the front end sides of the left and right end portions of the base plate of the first data cartridge.