JPS6150247A - Automatic tape guiding device - Google Patents

Abstract

PURPOSE:To make a cartridge simple and compact and to preclude the fear of loss of exchangeability by extracting automatically a tip of a magnetic tape from the cartridge without mounting a reader block and winding the tape automatically on a winding reel. CONSTITUTION:Air is blown to an air duct 13 of cartridge 1 from a nozzle 3, a tape tip 11a is drawn up to a tentative fastening device 4 from the cartridge 1, the excitation of a solenoid 64 is released and the tape is held by a fixing plate 61 and a moving plate 62 of a holding device 6. When a belt 5 is forwardly by the drive of a pulley 52, the tape tip 11a is connected to a hub 21 of a winding reel 2 via a tape running path A and carried to a lead part 23. A solenoid 72 of a release device 7 is excited to open the moving plate 62, then the tape tip 11a is released from the holding of the holding device 6, the winding reel 2 adsorbs the tape tip 11a to the hub 21 and turns tentatively, then the tape tip 11a is wound neatly on the peripheral of the hub 21.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to an automatic tape threading device for magnetic tape used in a computer system. 1.1-Relating to a device that is automatically wound around a roll after being pulled out and wound.

[Background of the invention]

With the miniaturization of computer systems, various conventional devices of this type have been provided in smaller sizes. For example, as in Japanese Patent Application Laid-Open No. 57-15253, a leader block is attached to the tip of a magnetic tape wound on a supply reel of a cartridge, and the leader block is moved to a take-up reel by a transfer means. There is one in which the leading end of the tape is guided along the tape running path, fixed on a take-up reel, and wound.

However, since the conventional device shown above has a leader block attached to the leading end of the magnetic tape, it has the following disadvantages.

In other words, when the magnetic tape is wound around the supply reel in the cartridge, the leader block is not held, so there is a risk of it shaking, and furthermore, when carrying it, the supply reel may move due to the weight of the leader block. If the tape spins around inside the cartridge, the magnetic tape may bend and twist inside the cartridge, or it may protrude from the cartridge.

Therefore, make sure that the mechanism that holds the leader block in the cartridge and the supply reel do not rotate unnecessarily.
□ 1.7, 6 degrees, car 4, 22 ka 1 It will not be very complicated, but it will also be large, and problems will occur when trying to downsize. 0 The shape of the leader block is still different. Since there are various differences, there is a risk of compromising cartridge compatibility.In addition, if the leader block is large, it is important to avoid contact with the magnetic head etc. when the leader block is moved. There are drawbacks that must be avoided.

[Purpose of the invention]

In view of the above circumstances, the present invention makes it possible to make the cartridge simple and compact, eliminates the risk of loss of compatibility, and furthermore, when moving the magnetic tape from the supply relay to the take-up series, the magnetic tape is It is an object of the present invention to provide an automatic tape threading device that can prevent the head etc. from retreating.

[Summary of the invention]

The present invention focuses on the above-mentioned conventional problems caused by the use of a leader block, and eliminates the leader block so that no parts are attached to the leading end of the magnetic tape. The present invention is characterized in that the leading end of the tape is automatically taken out from the cartridge and is automatically wound around the take-up reel, thereby achieving the above object.

[Embodiments of the invention]

The present invention will be described below with reference to the accompanying drawings. 1 to 4 show an embodiment of an automatic tape threading device according to the present invention.

The automatic tape threading device of the embodiment uses air to pull out the leading end 11a of the magnetic tape 11 from the supply reel 12 of the cartridge 1 when the cartridge 1 is loaded.
While forming a ventilation passage 13 inside the cartridge 1,
A nozzle 3 for blowing out air is installed at a position facing the ventilation path 13.

That is, although the ventilation passage 13 is not shown in detail, one end of the ventilation passage 13 is connected to a hole bored in the upper side surface of the cartridge 1 inside the cartridge 1, and the other end is connected to a drawer opening (see the figure) through the supply reel 12. (not shown). The nozzle 3 is installed in the ventilation passage 1 in the base 101C.
It is attached at a position corresponding to one end of 3. This nozzle 3 is connected to an air blowing source V (not shown), and when air is blown out, the air passes through the ventilation passage 13 and the drawer opening, and is blown toward the drawer part 14 located in front of the drawer opening. , a button is provided so that the tape leading end 11 & can be pulled out from inside the cartridge 1 in the pull-out direction A. Therefore, the ventilation passage 13 is located at the tape tip end 111L.
Regardless of the position of the tape on the supply reel 12, when air is blown out from the nozzle 3, the tape tip 11m is inevitably drawn out. At that time, supply reel 1
A second motor (not shown) is temporarily rotated to assist in drawing out the tape tip 11a.

As is well known, the cartridge 1 houses the supply reel 12 on which the magnetic tape 1 is wound, and when it is loaded on the base 10, the supply reel 12 is rotated forward and backward by the drive of the motor. By being reversed, the magnetic tape 11 can be fed out from the supply reel 12 and rewound onto the supply reel 12.

On the other hand, reels 51 and 52 for the belt 5 are provided at the pull-out portion 14 of the magnetic tape 11 and the lead-out portion 23 of the magnetic tape 11 on the take-up reel 2, respectively.

The reel 51 is the upper part near the drawer opening of the cartridge 1! It is supported so that it can rotate to the front position (R in Fig. 1). The reel 52 is rotatably supported at an upper position near a release mechanism 7, which will be described later, and is connected to a reel drive motor (not shown).

The belt 5 is wound between the reel 51 and the reel 52 so as to be able to reciprocate. The Held 5Vi
, one end is attached to the reel 51, and the other end is attached to the winding reel 2.
The tape is placed on a plane different from the tape running path A by being wound around the reel 52 via the rotary body 22 . This belt 5 is a trap so that it can reciprocate between the reels 51 and 52 as the reel 52 is rotated by the reel drive motor. Situ 18゛′−″°′″゛@2°**
Therefore, a stopper (not shown) is attached to the reel 51 and a spring (not shown) is attached to the reel 51 so that the rotation of the reel can be stopped immediately.
are set up respectively. Note that 53 is a plurality of rollers disposed at intermediate positions on the belt 5. the winding creel 2Vi,
Although not shown in detail, a hub 21 rotatably supported on a base lo and capable of winding the magnetic tape 11 and the rotating body 22 having a larger outer diameter than the hub 21 are integrally formed. are doing.

Thus, a temporary fixing mechanism 4 for temporarily fixing the tape leading end 11a when the tape leading end 11a is pulled out from the cartridge 1 is installed at a forward position in the tape pulling direction. That is, the temporary fixing mechanism 4 includes a pair of rows 241.degree.
, 42, the tape detecting sensor 43 detects when the tape leading end 11m is located between the tape ends 11m and 42. Of the pair of rollers 41 and 42, one roller 41 is the other roller 4? It is now possible to move against. In this temporary fixing mechanism 4, when the tape leading end 11a is pulled out and positioned between the pair of rollers 41 and 42, the tape detection unit 43 detects this and the roller 41 moves to the roller 421C. In addition, rollers 41 and 42 can grip and temporarily fix the tape tip 11&.

On the other hand, a holding mechanism 6 is provided at a position corresponding to the pull-out portion 14 on the belt 5 to hold the tape leading end 11m when the tape leading end 11a is temporarily fixed. The holding mechanism 6 includes a fixing plate 61 fixed to the belt 5 and having one end extending to the side of the base 10, and a pin 66 attached to the fixing plate 61, as shown in FIGS. It consists of a fixed movable plate 62 and a spring 63 that can press the movable plate 62 against the fixed plate 61 by elastic force. In the normal state, the belt 5 is located at the pull-out part 14, and is moved from the pull-out part 14 to the lead-out part 23 via the rotating body 22 of the winding reel 2 by the forward movement of the belt 5.
It is now possible to move. Further, the holding mechanism 6 includes the base 1
A solenoid 64 is fixed to the drawer portion 14 of the base lO and can move forward and backward with respect to the movable plate 62, and a solenoid 64 is fixed to the base lO at a position facing the solenoid 64.
It has a stopper 65 that prevents the fixed plate 61 from moving when the movable plate 62 moves forward. The solenoid 64
By pressing the upper part of the movable plate 62 by excitation, the movable plate 62 is rotated with respect to the fixed plate 61 so as to open around the bottle 66, and by releasing the excitation, the movable plate 6
By releasing 2, the movable plate 62 is rotated to close relative to the fixed plate 61 by the elastic restoring force of the spring 63. Note that 618 is a hole provided in the fixed plate 61 in order to prevent the movable plate 620 from being hit when the movable plate 620 rotates.

When the tape tip end 11m is temporarily fixed by the holding mechanism 6 Vi, the movable plate 62 is rotated so as to be closed by the solenoid 64, so that the tape is fixed between the movable plate 62 and the fixed plate 61. The tip portion 11a can be held. Therefore, when the holding mechanism 6 holds the tape leading end 11a, by moving the belt 5 forward, the tape leading end 11a passes through the tape running path A and the hub 21 of the take-up reel 2 to the lead-out portion 2.
Moved up to 3.

Note that when the tape tip 11a is pulled out, the movable plate 6
The movable plate 62 is opened in advance by a solenoid 64 so as to be located between the movable plate 62 and the fixed plate 61.

Further, the tape tip end 11a is connected to the lead-out portion 2 of the winding reel 2.
3, the holding mechanism 6 holds the tape tip 11.
A release mechanism 7 is installed to release the holding of a.

The release mechanism 7 includes a tape detection sensor 71 and a holding mechanism 6.
A solenoid 72 and a stone buff 3 configured similarly to the solenoid 64 and stopper 65 are attached to the base 10 near the lead-out portion 23. This release mechanism 7
When the tip portion 11a moves to the lead-out portion 23 due to the forward movement of the tip portion 11a, the tape detection sensor 71 detects this, and the solenoid 72 rotates the movable plate 62 so as to open it relative to the fixed plate 61, thereby holding it. It is possible to release the tape tip 11 & from being held by the mechanism 6.

Further, when the tape leading end 11a is released from the holding mechanism 6 by the release mechanism 7, the tape leading end 1 part 1
The take-up reel 2 is provided with suction means for suctioning the reel 2 (take-up). Although the suction means is not shown, for example, a suction hole connected to a vacuum suction source is provided on the surface of the nozzle 21, and when the suction hole is vacuum-suctioned, the tip of the tape 11& is 7. It is configured so that it can be adsorbed to the tab 21. In that case, take-up reel 2
A motor (not shown) that drives the tape tip 11a is wound around the circumferential surface of the take-up reel knob 21.

Next, the operation of the automatic tape threading device of the embodiment will be described below.

When the cartridge 1 is loaded into a predetermined position of the apparatus, air is blown out by the nozzle 3 into the ventilation path 13 of the cartridge 10, and the air is blown toward the drawer opening and the tape drawer part 14, so that the tape leading end 11& is blown into the cartridge 10. 1 to between the rollers 41 and 42 of the temporary fixing mechanism 4. In this case, since the solenoid 64 of the holding mechanism 6 is energized in advance and the movable plate 62 is rotated to open, it is possible to remove the tape tip 11a from the cartridge without any hindrance. Since the first supply reel 12 is temporarily rotated by the drive of the motor, it assists in drawing out the tape leading end 11a.

When the tape leading end 11& is pulled out, the tape detection sensor 43 detects the tape leading end 11m, and the roller 41 moves toward the roller 42.
, 42 can temporarily fix the tape tip 11m.

Next, when the solenoid 64 is de-energized, the solenoid 640 rod retreats and the movable plate 62 is pressed against the fixed plate 61, so that the fixed plate 61 and the movable plate 62 hold the tape tip 1'la. be able to.

At this time, since the roller 41 of the temporary fixing mechanism 4 returns to its original position, the tape leading end 11a is held down only by the holding mechanism 6.

Thereafter, when the belt 5 moves forward by driving the reel 52, the holding mechanism 6 is moved from the drawer part 14 to the lead-out part via the rotating body 22 of the take-up reel 2, and the tape tip 11a moves along the tape running path A. Then, it is conveyed to the lead-out section 23 by being wrapped around the hub 21 of the take-up reel 2 . At this time, the tape detection sensor 71 of the release mechanism 7 detects the tape tip 11a and excites the solenoid 72, so that the movable plate 62 of the holding mechanism 6 rotates to open, thereby releasing the tape tip 11a. is released from the holding mechanism 6.

At the same time, since the take-up reel 2 is vacuum-suctioned by the suction means, the tape leading end 11m can be attracted to the hub 21 of the take-up reel 2. Moreover, at that time, since the winding IJ-rule 2 is rotated by the temporary drive of the motor, the tape tip 11a is cleanly attached to the circumferential surface of the hub 21.
It can be wrapped around.

Thereafter, by rotating the supply reel 12 and the take-up reel 2 and running the magnetic tape 11, information can be written and read.

Note that in order to return the belt 5 and the holding mechanism 6 to their original positions, the magnetic tape 11 is wound onto the supply reel 2, and then the belt 5 is wound onto the reel 51 by the reel driving motor. The mechanism 6 can be located in the tape drawer 14.

〔Effect of the invention〕

As described above, the present invention forms a ventilation passage inside a cartridge in the direction in which the magnetic tape is pulled out from the supply reel, and a magnetic tape extraction portion is provided at a position facing the ventilation passage through the ventilation passage. A nozzle is installed to blow air toward the magnetic tape, and belt reels are provided at the magnetic tape pull-out portion and the tape lead-out portion of the take-up reel, and between the reels, the magnetic tape is placed along the tape running path. A belt that can be conveyed to a take-up reel via a cartridge is wound in a reciprocating manner, on the one hand, a temporary fixing mechanism is installed at a forward position in the magnetic tape pulling direction to temporarily fix the leading end of the tape pulled out from the cartridge, and on the other hand, A holding mechanism is installed at a position corresponding to the pull-out part of the belt to hold the tape tip when the tape tip is temporarily fixed, and the tape is wound up.
A release mechanism is installed in the tape leading-out section of the tape reel to release the holding mechanism of the tape leading end when the tape leading end is led out to the leading-out section, and the tape leading end is vacuum-suctioned to the take-up reel. Adsorption means 1 is provided, f
-7・Tip. ,. Yakaa)! Since the structure is such that it can be pulled out from the JZU and reliably wound on the take-up reel, there is no need to use a conventional leader block.

Therefore, according to the present invention, the problems associated with the leader block, that is, the leader block holding mechanism and the supply reel holding mechanism are not required, so that the cartridge can be made simple and compact. In addition, it is possible to prevent the compatibility of the cartridge from being impaired, and there is also the advantage that there is no need to retreat the magnetic head etc. during transport when winding the magnetic tape around the IJ-roll.

[Brief explanation of the drawing]

The accompanying drawings show an embodiment of an automatic tape threading device according to the present invention, in which Fig. 1 is a plan view showing the state in which the leading end of the tape is pulled out from the cartridge, and Fig. 2 shows the state in which the leading end of the tape is conveyed to the take-up reel. Plan view showing , Figure 3 (A)
, (b), (e) are temporary fixing mechanism and holding machine +j+
The enlarged plan view, front view, right side view, and FIG. 4 are enlarged perspective views showing a state in which the holding mechanism holds the tape tip. 1...Cartridge, 11...Magnetic tape, ll&
... tape tip, 12 ... supply reel, 13 ...
Ventilation path, 14... Magnetic tape pull-out part, 2... Take-up reel, n... Take-up reel lead-out part, 3...
Nozzle, 4... Temporary fixing mechanism, 41. 42... Roller, 43... Chi7゛ detection sensor, 5... Belt, 5
1,52... Reel, 6... Holding mechanism, 61...
Fixed plate, 62... Movable plate, 63... Spring, 7...
Release mechanism, 71...Tape detection sensor, 72...Solenoid), 73...Stopper, A...Magnetic tape pull-out direction. Agent: Patent Attorney Tadashi Akimoto Figure 1! Figure 2 : Figure 3(b)
(C) Figure 4 1a Procedural amendment (voluntary) February 25, 1985

Claims (1)

[Claims] 1. In an automatic tape threading device that pulls out the leading end of a magnetic tape from a supply reel housed in a cartridge, guides the leading end of the magnetic tape along a tape running path, fixes it to a take-up reel, and winds the tape. A ventilation passage is formed inside in the direction in which the magnetic tape is pulled out from the supply relay, and at a position facing the ventilation passage, air is blown toward the extraction part of the magnetic tape through the ventilation passage, and the leading end of the tape is A nozzle that can draw out the magnetic tape from the cartridge is attached, belt reels are respectively arranged in the magnetic tape pull-out section and the tape lead-out section of the take-up reel, and a tape running path is provided between the respective reels. A belt that can be conveyed to a take-up reel through the magnetic tape is wound reciprocally, on the one hand, a temporary fixing mechanism is installed at the front position of the magnetic tape in the drawing direction to temporarily fix the leading end of the tape pulled out from the cartridge, and on the other hand, A holding mechanism is installed at a position corresponding to the pull-out portion of the belt to hold the tape tip when the tape tip is temporarily fixed, and the tape tip is drawn out to the tape lead-out portion. An automatic tape threading device characterized in that a release mechanism is installed to release the tape tip end from being held by the holding mechanism at a certain point in time, and the take-up reel is provided with suction means for vacuum suctioning the tape tip end.