JPH08106677A - Take-up device of magnetic tape into cassette case - Google Patents

Abstract

PURPOSE: To prevent the magnetic tape from flawing at the time of taking up the magnetic tape into the cassette case by preventing a magnetic tape edge from coming into strong contact with the cassette case or a reel flange incorporated in the cassette case. CONSTITUTION: A traveling course of the magnetic tape 4 is determined by a position of a magnetic tape guiding means 8. The cassette case 5 under the housed state in a cassette case holding means 12 is positioned in the traveling course of the magnetic tape 4. A take-up shaft means 23 is moved back and forth to the cassette case 5 held by the cassette case holding means 12. The reel is positioned in the traveling course of the magnetic tape 4 by the take-up shaft means 23 in the state of holding the reel.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is useful for carrying out the production of a magnetic tape cassette for recording information, and particularly useful for carrying out a process of winding a magnetic tape on an empty cassette. It is an invention.

[0002]

2. Description of the Related Art A magnetic tape for recording a digital signal or an analog signal is usually housed in a cassette case and handled as a magnetic tape cassette. The magnetic tape is protected from damage and stain on the recording surface by handling it while being housed in the cassette case. Magnetic tape cassettes are industrially mass produced. A general production procedure of a magnetic tape cassette is shown in Japanese Patent Laid-Open No. 4-370592. The production procedure described here first assembles an empty cassette case. This empty cassette case contains a reel for winding the magnetic tape. After that, the magnetic tape is wound around the reel in the cassette case for a predetermined length to complete the magnetic tape cassette.
This production procedure is more suitable for automation than another production procedure, for example, a production procedure in which a magnetic tape is first wound around a reel and then the reel is assembled in a cassette case.

A general problem in winding a magnetic tape around a reel contained in a cassette case is how to wind the magnetic tape around the reel so as not to damage the magnetic tape. The reason for this is that when the magnetic tape is wound on the reel built in the cassette case, the edge of the magnetic tape is likely to come into contact with the cassette case or the flange of the reel. If the magnetic tape edge makes strong contact with the cassette case or the flange of the reel, the magnetic tape edge is mechanically damaged. As a result, the quality of the magnetic tape may be significantly reduced.

As a conventional technique for solving this problem,
A technique of a tape winding device disclosed in Japanese Patent Laid-Open No. 4-289547 (G11B15 / 32) is known. The tape winding device shown here winds the magnetic tape so that the magnetic tape does not come into strong contact with the cassette case by moving the reel built in the cassette case within the cassette case. In this device, first, a winding shaft driven to rotate by a motor is inserted into a reel in a cassette case, and then the winding shaft and the reel are firmly adhered to each other. Next, the reel shaft is moved to a position where the reel does not come into strong contact with the cassette case. After that, the magnetic tape is wound on the reel by rotating the winding shaft. By doing so, the edge of the magnetic tape is wound around the reel without making strong contact with the cassette case or the flange of the reel.

[0005]

In the conventional tape winding device, when the dimensional accuracy of the cassette case or the dimensional accuracy of the reel is poor, even if the reel position is moved, the edge of the magnetic tape is the flange of the cassette case or the reel. There is a problem that it may come into strong contact with. The reason for this is that the dimensions of the cassette case and reel are not uniform. The dimensional accuracy of the cassette case and reel is regulated by the standard, but even if the standard conforms to the standard, it varies within a certain range. Even if it is attempted to move the reel so that the magnetic tape being wound does not come into strong contact with the flanges of the cassette case or reel, the appropriate moving distance of the reel depends on the dimensions of the cassette case or reel. Therefore, it is not always possible to position the reel in an ideal position in the cassette case. The present invention
In the case of a cassette case or reel manufactured according to the standard, it is an object to obtain a tape winding device in which the edge of the magnetic tape does not completely contact the cassette case or reel or only makes weak contact with the cassette case or reel.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a magnetic tape supply mechanism for supplying a magnetic tape, and guides the running of the magnetic tape supplied from the supply mechanism, A magnetic tape guide mechanism that determines the position of the running path, a cassette case holding mechanism that positions the cassette case with respect to the position of the running path of the magnetic tape that is guided by the magnetic tape guide mechanism, and an empty reel that contains the cassette case. In a magnetic tape winding device for a cassette case having a winding shaft that can be connected to the empty reel and can drive the empty reel to rotate, after the empty reel and the winding shaft are connected, the magnetic tape is passed through the magnetic tape guide mechanism. Reel positioning to position the empty reel with respect to the magnetic tape guide mechanism so that the magnetic tape is wound around the center of the empty reel. It is obtained by such a mechanism.

Further, in the magnetic tape winding device for the cassette case, the reel is provided with a tape height reference mechanism for determining the winding position of the magnetic tape wound on the reel, and the winding shaft is the tape height reference mechanism. A magnetic tape take-up device for a cassette case, which is equipped with a reel height reference mechanism that can be combined, so that the tape height reference mechanism and the reel height reference mechanism are combined when the reel and the take-up shaft are connected. Is. Further, in the magnetic tape winding device for the cassette case, the winding shaft can be moved forward and backward with respect to the reel, and the winding shaft first advances toward the reel to move the tape height reference mechanism and the reel height. It is a device for winding a magnetic tape on a cassette case that positions the reels with respect to the magnetic tape guide mechanism by combining the standard and then retracting.

[0008]

According to the above means, the position of the running path of the magnetic tape is determined by the position of the magnetic tape guide mechanism. The cassette case is positioned by the cassette case holding mechanism in correspondence with the position of the running path of the magnetic tape determined by the position of the magnetic tape guide mechanism. The reel built in the cassette case is connected to the winding shaft mechanism. The winding shaft of the winding shaft mechanism is rotationally driven by a motor. If the leading end of the magnetic tape is connected to the reel, the reel is rotated by the rotation of the winding shaft, and the magnetic tape is wound on the reel. The reel positioning means positions the reel in correspondence with the position of the running path of the magnetic tape determined by the position of the magnetic tape guide mechanism after the winding shaft and the reel are connected. The position of the reel is a position where the magnetic tape wound on the reel is wound around the center of the reel. Therefore, the magnetic tape guided by the magnetic tape guide mechanism and wound on the reel in the cassette case is wound without being in strong contact with the flange of the cassette case or the reel.

The tape height reference mechanism provided on the reel serves as a reference for the position of the portion of the reel on which the magnetic tape is wound. The reel height reference mechanism provided on the take-up shaft serves as a reference for the position of the reel connected to the take-up shaft. Therefore, when the tape height reference mechanism provided on the reel and the reel height reference mechanism provided on the take-up shaft are combined, the position of the take-up shaft corresponding to the position of the portion where the magnetic tape of the reel is taken up is determined. . As a result, by determining the position of the winding shaft, the position of the portion of the reel on which the magnetic tape is wound can be determined. Further, the winding shaft can be moved in the forward or backward direction toward the reel inside the cassette case. After the reel and the winding shaft are connected, the reel can be moved by moving the winding shaft. As a result, the portion of the reel on which the magnetic tape is wound can be positioned corresponding to the traveling path of the magnetic tape.

[0010]

1 is a side view showing the configuration of an embodiment of the present invention. The magnetic tape winding device is divided into a front side 2 and a back side 3 with the panel base 1 interposed therebetween. Reference numeral 4 is a magnetic tape, and 5 is a cassette case. The traveling path of the magnetic tape 4 and the handling of the cassette case 5 are mainly performed on the front side 2 of the panel base 1. On the back side of the panel base 1, there are mainly arranged a portion for supporting the traveling path of the magnetic tape 4, a mechanism for operating the cassette case 5, and a control mechanism. Reference numeral 6 is a magnetic tape supply means for supplying the magnetic tape 4. The magnetic tape supply means 6 is a magnetic tape 4
Is configured by a supply reel 7 wound in a long length and a motor (not shown) for rotationally driving the supply reel 7.

Reference numeral 8 is a magnetic tape guide means for guiding the magnetic tape 4. The magnetic tape guide means 8 is composed of a guide column 9 attached to the front side 2 of the panel base 1 and a guide 10 attached to the tip of the guide column 9. The guide 10 has a groove 11 for guiding the magnetic tape 4.
Is provided. The travel path of the magnetic tape 4 is determined by the position of the groove 11 of the guide 10, and the height of the travel path of the magnetic tape 4 from the panel base 1 is determined by the height of the groove 11 of the guide 10 with respect to the panel base 1.

Reference numeral 12 is a cassette case holding means for positioning the cassette case 5. The cassette case holding means 12 is generally a hexahedron. The cassette case holding means 12 includes a holder base 13 parallel to the panel base 1, a front panel 14 facing the holder base 13, a holder base 13 and the front panel 1.
The cassette case 5 is accommodated by the two side panels 15 sandwiched between the four. A first opening 16 is provided in the upper part of the cassette case holding means 12, and a second opening 17 is provided in the lower part. The cassette case 5 is inserted into the cassette case holding means 12 through the opening 17 as necessary, and the opening 17 is opened as necessary.
Emitted from.

The cassette case holding means 12 is attached to the panel base 1 via a slide guide 18. The slide guide 18 includes a guide base 19 attached to the panel base 1 and a slide rod 20 slidable with respect to the guide base 19. Holder base 13 of cassette case holding means 12
Is attached to one end of the slide rod 20.
The cassette case holding means 12 can move forward and backward with respect to the panel base 1 by the operation of an air cylinder (not shown). That is, the cassette case holding means 12
When it moves in the direction shown by arrow 55, it moves away from panel base 1, and when it moves in the direction shown by arrow 56, it approaches panel base 1. 21 and 22 are positioning pins.
One ends of the positioning pins 21 and 22 are fixed to the panel base 1. The other ends of the positioning pins 21 and 22 correspond to holes (not shown) provided in the holder base 13 of the cassette case holding means 12. The lengths of the positioning pins 21 and 22 from the panel base 1 are accurately adjusted. One end of the positioning pins 21 and 22 is
When the cassette case holding means 12 moves in the direction shown by the arrow 56 and advances toward the panel base 1, the cassette case 5 held by the cassette case holding means 12 is pressed against the top panel 14. ing. The cassette case 5 held by the cassette case holding means 12 is sandwiched between the positioning pins 21 and 22 and the top panel 14. The height of the cassette case 5 from the top panel 1 is determined by the lengths of the positioning pins 21 and 22.

In FIG. 1, the cassette case holding means 12 is
By moving in the direction shown by the arrow 56, a state in which the panel base 1 is approached is shown. The cassette case holding means 12 positions the cassette case 5 on the running path of the magnetic tape 4 while being close to the panel base 1. The cassette case holding means 12 moves in the direction indicated by the arrow 55 to move the panel base 1
The cassette case 5 is released at a position away from. The cassette case 5 is inserted into the cassette case holding means 12 through the second opening 17 of the cassette case holding means 12 or opened at a position where the cassette case holding means 12 is separated from the panel base 1. Drawn from 17.

Reference numeral 23 is a winding shaft means. The winding shaft means 23 includes a winding shaft 34 and a motor 35 for rotationally driving the winding shaft 34. The winding shaft means 23 and the motor 35 are coupled by a coupling 59,
It is connected by the clutch 60 and the winding shaft holder 61. The coupling 59 connects the motor 35 and the clutch 60. The winding shaft means 23 is rotatably supported by the winding shaft holder 61. When the clutch 60 is in the connected state, the motor 35 and the winding shaft means 23
Is connected. The winding shaft means 23 is rotationally driven by the rotation of the motor 35.

Reference numeral 25 is a slide block. The motor 35 and the clutch 60 are attached to the slide block 25. The winding shaft means 23 is attached to the slide block 25 via the winding shaft holder 61. Reference numeral 26 is a slide guide. Reference numeral 24 is a base block. The slide block 25 is attached to the base block 24 via a slide guide 26. The base block 24 is fixed to the panel base 1. The slide block 25 is the base block 2
It is possible to move with respect to 4. That is, the winding shaft means 23 is supported together with the motor 35 so as to be movable back and forth along the slide guide 26 with respect to the panel base 1.

27 is an air cylinder. The air cylinder 27 is fixed to the base block 24. The rod 28 of the air cylinder 27 is connected to the slide block 25 via a link 29. Air cylinder 27
Is operated, the slide block 25 moves with respect to the base block 24. As a result, the winding shaft means 23
Moves forward and backward with respect to the cassette case 5. When the winding shaft means 23 moves in the direction shown by the arrow 57,
It advances toward the cassette case 5 and retracts from the cassette case 5 when it moves in the direction indicated by the arrow 58. 30
Is a first stopper block, and 31 is a second stopper block. The stopper blocks 30 and 31 are
It is attached to the slide block 25. 32 is
The first positioning block 33 is a second positioning block. The positioning blocks 32 and 33 are attached to the base block 24. The first stopper block 30 and the first positioning block 32 come into close contact with each other when the slide block 25 moves in the direction shown by the arrow 58, and the first position of the position when the winding shaft means 23 retracts from the cassette case 5. It becomes a standard. The second stopper block 31 and the second positioning block 33 come into close contact with each other when the slide block 25 moves in the direction shown by the arrow 57, and when the winding shaft means 23 moves forward toward the cassette case 5. It serves as a position reference.

FIG. 2 is a partially enlarged view of the winding shaft means 23. The winding shaft 34 includes a reel height reference mechanism 35 and a drive shaft 36. The reel height reference mechanism 35 is
It has a reference surface 37 that is finished to be smooth. Drive shaft 3
6 has a drive pawl 38 at the center.

FIG. 3 is an explanatory view showing the structure of the cassette case 5. The cassette case 5 includes an outer case 39,
The outer case 39 has an empty reel 40 rotatably incorporated therein. The bottom surface 41 of the outer case 39 is
It becomes the reference of the position of each part of. Reel 4
0 is composed of a pair of flanges 42 and 43 and a winding hub 44 sandwiched between the flanges. The winding hub 44 is
This is a portion around which the magnetic tape 4 shown in FIG. 1 is wound. The winding hub 44 includes a recess 45 for inserting a drive source for driving the reel 40. The recess 45 is formed in the outer case 39.
The hole 46 is exposed to the outside.
47 is a tape height reference mechanism. The tape height reference mechanism 47 is formed around the recess 45 as a ring having a reference surface 48. The reference surface 48 of the tape height reference mechanism 47 is exposed to the outside through the hole 46.

FIG. 4 is an explanatory view showing a state in which the winding shaft means 23 is inserted into the reel 40 of the cassette case 5. The drive shaft 36 shown in FIG.
It is rotated by 0 degrees and is shown in cross section. Drive claw 38
Is composed of a first claw 49 and a second claw 50.
The first claw 49 and the second claw 50 are operable to draw an arc around the shafts 51 and 52. 53 is a spring. The spring 53 acts to push the first claw 49 and the second claw 50 apart from each other. Drive shaft 36 is reel 4
When it is inserted into the recess 45 of 0, the drive claw 38 moves the spring 53
By the action of the
Thus, the reel 40 is mounted on the. Further, with the reel 40 mounted on the winding shaft means 23, the reel height reference mechanism 35 and the tape height reference mechanism 47 are arranged so that the reference surfaces 37 and 48 thereof are in contact with each other.

The operation of the above arrangement will be described. In the initial state, the cassette case holding means 12
Has moved in the direction indicated by arrow 55 and is located away from panel base 1. Also, the winding shaft means 23
Has moved in the direction indicated by the arrow 57, and the second stopper block 31 and the second positioning block 33 are in close contact with each other. Next, when the cassette case 5 is inserted into the cassette case holding means 12, the cassette case holding means 12 moves in the direction indicated by the arrow 56. Then, the cassette case 5 has the positioning pins 21, 2
The magnetic tape 4 is positioned with respect to the traveling path of the magnetic tape 4. The position of the cassette case 5 is as follows.
It is a position where the edge of the magnetic tape 4 does not come into contact with the cassette case 5 or does not come into strong contact with the cassette case 5 when the magnetic tape 4 is wound around the reel 40 incorporated in the. In this case, it is more desirable to position the edge of the magnetic tape 4 so as not to contact the cassette case 5.

When the cassette case holding means 12 moves in the direction indicated by the arrow 56 while holding the cassette case 5, the take-up shaft 36 of the take-up shaft means 23 is placed in the recess 45 of the reel 40 contained in the cassette case 5. Is inserted. Then, as shown in FIG. 4, the winding shaft means 2
The reel height reference mechanism 35 of No. 3 and the reference surface of the tape height reference mechanism 47 of the reel 40 are in close contact with each other.

Next, the winding shaft means 23 is connected to the reel 40.
While holding, move in the direction shown by arrow 58. When the winding shaft means 23 moves in the direction indicated by the arrow 58, the first
Stopper block 30 and first positioning block 32
Stick to each other. The positions of the first stopper block 30 and the first positioning block 32 determine the position of the winding shaft means 23 with respect to the traveling path of the magnetic tape 4. When the winding shaft means 23 is positioned with respect to the running path of the magnetic tape 4, the reel 40 is also positioned with respect to the running path of the magnetic tape 4. The position of the reel 40 is a position where the edge of the magnetic tape 4 is wound around the winding hub 44 without contacting the flanges 42 and 43 of the reel 40 shown in FIG. In this case, the edge of the magnetic tape 4 should not come into contact with the flanges 42 and 43, and
Is more desirable.

[0024]

According to the present invention, in the case of a cassette case or reel manufactured according to the standard, a tape winding device in which the edge of the magnetic tape does not completely contact the cassette case or reel or only makes a weak contact therewith. As a result, it is possible to stably produce a high-quality magnetic tape cassette, and there is an effect that it is industrially effective.

[Brief description of drawings]

FIG. 1 shows the overall configuration of an embodiment.

FIG. 2 is a partially enlarged view of the embodiment.

FIG. 3 is a partially enlarged view of the embodiment.

FIG. 4 is a partially enlarged view showing an operation state of the embodiment.

[Explanation of symbols]

 8 Magnetic Tape Guide Means 12 Set Case Holding Means 23 Winding Shaft Means 35 Reel Height Reference Mechanism 47 Tape Height Reference Mechanism

Claims (3)

[Claims] 1. A magnetic tape supply means for supplying the magnetic tape to wind the magnetic tape around a cassette case containing an empty reel, and a guide for running the magnetic tape supplied from the magnetic tape supply means. Magnetic tape guiding means for determining the position of the running path of the magnetic tape, cassette case holding means for positioning the cassette case with respect to the position of the running path of the magnetic tape guided by the magnetic tape guiding means, A magnetic tape winding device for a cassette case, comprising: a winding shaft means capable of being connected to the empty reel built in a cassette case and capable of rotationally driving the empty reel; After the winding shaft is connected, the magnetic tape that has passed through the magnetic tape guide means is located approximately in the center of the empty reel. As wound, the magnetic tape winding apparatus to the cassette case, characterized in that it comprises a reel positioning means for positioning the empty reel to the tape guide means. 2. The apparatus for winding a magnetic tape on a cassette case according to claim 1, wherein the reel includes a tape height reference mechanism for determining a winding position of the magnetic tape wound on the reel, and The winding shaft includes a reel height reference mechanism that can be combined with the tape height reference mechanism. When the reel and the winding shaft are connected to each other, the tape height reference mechanism and the reel height reference mechanism are provided. A magnetic tape winding device for a cassette case combined with a mechanism. 3. The magnetic tape winding device for a cassette case according to claim 2, wherein the winding shaft is movable back and forth with respect to the reel, and the winding shaft first moves to the reel. A magnetic tape take-up device for a cassette case, which moves forward, combines the tape height reference mechanism and the reel height reference, and then moves backward to position the reel with respect to the magnetic tape guide means.