JPH036586B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in a tape feeding device that feeds out magnetic tape, paper tape, adhesive tape, or the like.

Conventionally, for example, a horizontal computer magnetic tape device using magnetic tape has a supply reel formed by winding the magnetic tape on a device base, and a winding unit (for example, a winding hub) that winds the magnetic tape. It is rotatably provided across the tape running path, and has guide rollers, magnetic heads, etc. placed at predetermined positions along the tape running path. After the tape running path is sealed by placing a cover over these functional components, air is blown from the supply reel side to feed out the leading edge of the magnetic tape and guide it into the tape running path, while the winding section side The magnetic tape is configured to automatically attach the leading end of the magnetic tape to the winding section by sucking air.

However, in the case of a device having the above configuration, there are the following problems.

One is that the tape running path is completely sealed by the cover, so the wind sent out from the two blowers wraps around inside the tape running path, creating a eddy flow. The leading edge of the magnetic tape unwound from the supply reel may stop running midway through the supply, twist several times before reaching the take-up section, or the leading edge of the magnetic tape may run in a spiral shape. However, there is a problem in that it is difficult to attach it to the winding section.

Next, the leading edge of the magnetic tape unwound from the supply reel is introduced into the tape running path while being pressed down by the air from the two air blowers, but if the air volume of the two air blowers is even slightly unbalanced, There is a problem in that the leading edge of the magnetic tape gets stuck on one wall of the tape running path, making it impossible to run.
For this reason, there is a problem in that it is very difficult to adjust the timing of starting air blowing and the amount of air blowing by the two air blowers. Similar problems also exist with paper tapes and adhesive tapes.

Furthermore, if the supply reel is small, even if the air blower sends air parallel to the supply reel, the effect of the wind will be weak and the tape will not be fed out smoothly, and even if the leading end of the tape is fed out, the supply reel will There is a problem in that the tape falls directly below, or as the leading end of the tape falls, the entire outside of the tape wound around the supply reel bursts and falls directly below.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a tape feeding device that prevents the tape from falling from the supply reel and allows the tape to be smoothly fed from the supply reel.

Hereinafter, one embodiment of the present invention will be described with reference to FIGS. 1 to 3. Note that FIG. 1 shows the arrangement of functional parts in the upper part of the apparatus, FIG. 2 shows the main parts of the present invention, and FIG. 3 is a cross-sectional view of the tape running path. In FIG. 1, reference numeral 10 denotes a base of a device disposed almost horizontally, such as a horizontal magnetic tape device for a computer, and a supply reel 12 of a magnetic tape 11 is rotated on the front side of the top of the base 10. Further, a winding section 13 for winding up the magnetic tape 11 is rotatably provided on the rear right side of the upper part of the base 10. And supply reel 12
Recesses 10a and 10b are formed on the base 10 on which the winding unit 13 is located, and have spaces that take into consideration the winding width of the magnetic tape 11 wound around the supply reel 12 and the winding unit 13. supply reel 1
The concave portion 10a on the second side has two first air blowing portions 14,1
In consideration of the arrangement space of 5, the width is wider toward the front side. The first air blowing sections 14 and 15 are parallel to the supply reel 12 and have the function of sending out air to the side of the reel 12 to feed out the leading end of the magnetic tape 11 from the supply reel 12. Furthermore, as shown in FIG. 2, a second blowing section 16 is provided on the base 10 located below the supply reel 12, and air is sent out from the second blowing section 16 so as to hit the bottom of the supply reel 12. This is to prevent the magnetic tape 11 from falling onto the base 10. Furthermore, the recess 10a on the supply reel 12 side and the recess 10b on the take-up section 13 side are communicated through a curved tape running path 17 having approximately the same depth. The two air blowing parts 14 and 15 are arranged in the recessed part 10 so as to blow air in the directions of arrows A and B in the figure.
It is located within a. In the figure, 18 is a tape path sensor that detects the passage of the magnetic tape 11, 19 is a tension roller, 20 and 21 are guide rollers,
22 is a tape cleaner, and 23 is a magnetic head.

After arranging each functional component as described above, the top of the base 10 is covered with a cover 24 as shown in FIG. Furthermore, this cover 24 is provided with a groove 25 through which the air sent out from the first and second air blowing sections 14 to 16 passes through the tape running path 17 and then flows out to the outside of the apparatus.

Next, the operation of the device configured as above will be explained. To feed out the magnetic tape 11, the supply reel 12 is rotated in the tape winding direction (in the direction of the arrow in the figure), and the first and second air blowers 1 are rotated.
Air is blown by steps 4 to 16, respectively. At this time, the first air blowing sections 14 and 15 are parallel to the supply reel 12 and are directed toward the tape running path 17 from the side of the reel 12.
When air is blown toward the supply reel 12, the tip of the magnetic tape 11 wound on the reel 12 is bent by the wind and guided toward the tape running path 17. .

In this case, if the diameter of the supply reel 12 is small, the effect of the air sent out from the first air blowers 14 and 15 is very weak, so that it is difficult for the magnetic tape 11 to fall from the tip of the magnetic tape 11 directly below the reel. be. However, since this device sends air directly below the supply reel 12 from the second air blower 16, the air that hits the supply reel 12 acts to exit to the upper side of the reel 12 through the lower side of the reel 12. . As a result, the magnetic tape 11 fed out from the supply reel 12 is prevented from falling directly below the reel due to the influence of the wind, and the first air blowing sections 14 and 15 ensure that the tape tip is placed on the tape running path. It will lead you to 17.

When the leading end of the tape approaches the entrance of the tape running path 17, the magnetic tape 11 is exposed to the wind from the two air blowers 14 and 15. As shown in FIG. 3D and D', a flow path is created to sandwich the magnetic tape 11, and the magnetic tape 11 is discharged from the groove 25 of the cover 24 to the outside of the apparatus. As a result, the magnetic tape 11 is erected on the tape running path 17 directly below the groove 25 with one side wall as the bottom due to the above-mentioned wind flow, and in this state, the magnetic tape 11 is placed along the tape running path 17 along the shape of the groove 25. running on top. Therefore, the two air blowers 14,1
The wind of No. 5 once enters the tape running path 17, but the wind blows through the cover 24 located approximately in the center of the tape running path 17.
Since the air flows outward from the groove 25, the air sent out from the air blowing section does not form a swirling flow within the tape running path 17, unlike in conventional devices. Therefore, the magnetic tape 11 will not be twisted multiple times or spirally, making it difficult to run. Further, the leading end of the magnetic tape 11 runs stably without biting into one wall of the tape running path 17. When the leading end of the magnetic tape 11 approaches the rear end of the groove 25, the leading end of the tape easily moves toward the winding part 11 due to the influence of air intake on the winding part side.
will be installed on the

When the tape path sensor 18 detects the passage of the magnetic tape 11, the supply reel 12 starts rotating in the direction of the arrow shown in the figure in response to the detection signal, and enters a so-called normal tape supply state. It also rotates. The arrow shown in the figure indicates a state in which air is being taken in by an intake part (not shown) on the side of the winding part 13.

Note that the present invention is not limited to the above embodiments. The tape 11 is fed out through this ventilation section 14,
15, but for example, the blower section 14
It is also possible to omit the air blowing section 15 and provide only the air blowing section 15. In this case, the air from the air blower 15 flows out from the one side of the magnetic tape 11 through the groove 25 as shown in FIG. , the magnetic tape 11 can be positioned almost directly below the groove 25 and run.
Further, in the above embodiment, the cover 24 is provided with the groove 25, but for example, as shown in FIGS. 5A and 5B, the cover 24 may be provided with a plurality of holes 25a along the tape running path 17. 6, a plurality of holes 25 are formed in the base 10 corresponding to the bottom of the tape running path 17.
b... may also be provided. Further, the present invention is not limited to magnetic tape, and can be similarly applied to paper tape and adhesive tape. In addition, the present invention can be implemented with various modifications without departing from the gist thereof.

As described in detail above, according to the present invention, in addition to the first blowing section that sends out air parallel to the supply reel, there is a second blowing section that sends out air from below the supply reel so as to lift the tape. Since the air blower is provided, even if the diameter of the supply reel is small, the leading end of the tape can be reliably fed out without dropping the tape outside the reel. In addition, since an air outflow part such as a groove or hole is provided in the cover itself or the base, the magnetic tape can be securely placed on the tape running path directly below the air outflow part along the wind flow. It can be installed and run. Therefore, the tape can be introduced into the tape running path without being twisted by the wind or sticking to the wall of the tape running path, and the tape can be run safely on the tape running path. Further, since stable running of the tape is ensured, it is possible to provide a tape feeding device that can reliably attach the tape to the winding section.

[Brief explanation of the drawing]

1 to 3 are shown to explain an embodiment of a tape feeding device according to the present invention, and FIG. 1 is a top view of a horizontally placed computer magnetic tape device to which the device of the present invention is applied. , Fig. 2 is a cross-sectional view showing the positional relationship between the supply reel and the blower section, and Fig. 3 is a cross-sectional view showing the positional relationship between the supply reel and the blower section, and Fig. 3 is a cross-sectional view showing the positional relationship between the supply reel and the blower section, and Fig. 3 is the A-A shown in Fig.
The arrow view and FIGS. 4 to 6 are sectional views illustrating other examples of the present invention, respectively. DESCRIPTION OF SYMBOLS 10... Base, 11... Magnetic tape, 12... Supply reel, 13... Winding part, 14, 15... First blowing part, 16... Second blowing part, 17... Tape running path,
24...cover, 25...groove, 25a, 25b...hole.

Claims (1)

[Scope of Claims] 1. A supply reel 12 and a take-up section 13 are arranged on a base 10 of an apparatus disposed substantially horizontally via a tape running path 17, and the tape is wound around the supply reel. A tape feeding device that feeds a tape to a winding section via a tape running path includes a cover 24 that covers at least the upper surface of the supply reel and the tape running path, and a cover 24 that sends out air substantially parallel to the upper and lower surfaces of the supply reel. A first air blowing unit 14, 15 that feeds out the tape on the supply reel, and a ventilation hole provided in the base located below the supply reel, and the tape that is fed out from the supply reel by blowing air from the ventilation hole. a second blower section 16 that prevents the tape from falling onto the base; and a second blower section 16 that perforates the base or the cover in a continuous or scattered manner along approximately the center of the tape running path up to the vicinity of the winding section. A tape feeding device comprising air outflow portions 25, 25a, and 25b.