KR900005639Y1 - Tape guiding apparatus - Google Patents

Abstract

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Description

Tape guide device for high speed exploration

1 and 2 is a plan view showing the configuration and operation of the conventional V-real odometer, Figure 1 is a plan view showing the FF / REW state.

2 is a plan view showing a PLAY state.

3 to 5 is a plan view showing the configuration and operation of the V-real odometer installed in the device of the present invention, Figure 3 is a plan view in the stop mode.

4 is a plan view in the FF / REW mode.

5 is a plan view in the PLAY mode.

* Explanation of symbols for main parts of the drawings

2: winding reel 12: pinch roller

22: Cam Gear 22a: Cam Home

23: drive lever 23a: operating pin

23b: step portion 23c: concentric portion

23d: working surface 23e: working hole

24: Pinch collar lever 25: Rotation limit lever

25a: bend 25b: limiting protrusion

25c: operation pin 26: probe lever

27: compression lever 31: idler lever

32,33: Guide post 35: Operation pin

The present invention relates to a tape guide device for exploring a specific screen position of a tape at FF / REW at high speed. In particular, the driving lever operates the exploration lever, the pivot limit lever, and the pinch roller lever. The present invention relates to a tape guide device in which a tape guide post is provided to simplify a driving structure.

Conventionally, the high speed exploration device that adopts a high speed exploration device to check the position of the desired screen by scanning the specific signal recorded on the tape while transferring the tape at high speed during FF / REW and replaying the screen during PLAY is adopted. As shown in FIG. 1, the traveling system of V-Cal equipped with a conventional high speed exploration device is a cassette tape 3 mounted on the supply reel 1 and the take-up reel 2 during FF / REW. The inclined guide post assemblies 4 and 4 'are inserted into the mold openings 3a and 3a', and the tape 5 is guided by the rollers 6 and 6 'mounted inside the cassette tape 3, respectively. It feeds rapidly from the supply reel 1 to the winding reel 2 side or the opposite direction.

In addition, during the PLAY, if the function plate 7 installed to move left and right from the lower side of the supply reel 1 and the take-up reel 2 moves to the right by the power of a drive motor (not shown), the function plate 7 The inclined post assembly 4, 4 ′ pulls out the tape 5 by means of an interlocking loading mechanism (not shown) and rides through the loading guides 8, 8 ′ with the stopper 9, 9 ′. And the pinch roller lever 10 rotates counterclockwise with respect to the shaft pin 11 so that the pinch roller 12 adhered to the tip portion presses the tape 5 to the capstan shaft 13 and guides As the lever 36 rotates, the guide post 36a moves to guide the tape 5, and the tension lever 14 rotates counterclockwise with respect to the shaft pin 15 to fix the tension post ( 16) is moved to the tape tension adjustment position.

In the conventional V-Cal as described above, a specific signal is recorded at a predetermined position of the tape 5 to be reproduced by the full width erasing head 17 at the time of PLAY, and the opening 3a 'of the cassette tape 3 is recorded. The exploration head 18 is provided so as to be positioned within the c), and the specific signal recorded on the tape 5 during the FF / REW is searched to confirm the desired screen position. 19 is an A / C head installed between the tape football side of the head drum 20 and the capstan shaft 13.

However, as described above, the conventional high-speed screen search device of V-Cal uses an all-in-one erasing head 17 on the driving path A, which is the driving path in the plate mode, to record signals, and travels at the time of FF / REW. By using a separate search head 18 on a driving path B, which is a path, the positions of recording and detection are different, so when a tape is loaded to view a desired screen, the desired screen cannot be exactly matched. There was a defect that the cost of the product was increased by using the use head 18.

The present invention is made in order to solve such a conventional defect described in detail by the accompanying drawings as follows.

3 to 5 are plan views showing the configuration and operation of the V-real odometer equipped with the present device, while FIG. 3 is in the stop mode, FIG. 4 is in the fast-forward mode such as FF / REW, and FIG. A plan view showing a tape running path in a PLAY mode such as regeneration. As shown here, the base plate 21 is adjacent to the cam gear 22 on the lower surface of the base plate 21 adjacent to the take-up reel 2. The driving piece 23a is attached to the upper surface by the shaft pin 23 'and the operating piece 23a fixed to the lower surface of the front end of the driving lever 23 is formed through the long hole formed in the base plate 21. The drive lever 23 rotates in the direction of the arrow when the cam gear 22 is rotated in the counterclockwise direction by the power received from a separate drive source and is inserted into the cam groove 22a formed on the upper surface of 22).

On the driving lever 23, an operating surface 23d consisting of a stepped portion 23b and a concentric circle portion 23c is formed at a rear end thereof, The shaped actuation hole 23c is formed, and the pinch roller lever 24, the idler arm pivot limit lever 25, and the tape shot lever 26 are connected to the drive lever 23 to rotate the drive lever 23. Therefore, they are driven together.

The pinch roller lever 24 is adhered to the shaft pin 24 ', and the pinch roller 12 is pressed to the camston shaft 13 at the rear end and the pressing lever 27 is flown to the connecting pin 28 at the front end. At the same time, the pressing lever 27 is connected to the driving lever 23 with a connecting pin 28 '.

The pressing lever 27 has two levers stacked up and down and a coil spring is connected therebetween, so that the pinch roller 12 is pressed to the capstan 13 with proper elasticity.

The pivot limit lever 25 is attached to the shaft pin 25 ′ and the locking projection 31a protruding from the idler arm 31 of the idler assembly 30 having the idler 29 at the end of one side bending portion 25a. Is formed in the operating hole 23e of the drive lever 23, and a restricting protrusion 25b for restricting the movement of the < RTI ID = 0.0 >) is formed, < / RTI >

The probe lever 26 has a first guide post 32 fixed to one side extending end 26a and a second guide post 33 fixed to the other bent end 26b, and rotates the probe lever 26. The torsion springs 26 ', which are supported, are provided with a torsion spring 34 for holding the exploration lever 26 to rotate counterclockwise, and adjacent to the shaft pin 26' on the lower surface of the exploration lever 26. The fixed operation pin 35 is in contact with the operating surface 23d of the drive lever 23. In the drawings, the same parts as in the prior art of FIGS. 1 and 2 are denoted by the same reference numerals.

According to the present invention, the specific signal is transmitted to the A / C head 19 at a predetermined position where the tape 5 is to be viewed again while the tape 5 is loaded and reproduced as shown in FIG. 5 in the stop mode of FIG. In the FF / REW mode as shown in FIG. 4, a signal recorded by the same head 19 is detected.

Hereinafter, the operational effects of the present invention in more detail as follows.

In the stop mode of FIG. 3, when the cassette tape 3 is mounted on the upper side of the supply reel 1 and the take-up reel 2, the inclined post assembly 4 (inserted into the openings 3a and 3a ') ( 4 ') and the tape 5 is positioned outside the guide post 32. As shown in FIG.

In this state, when the cam gear 22 is driven in the counterclockwise direction, as the pin 23a inserted into the upper cam groove 22a of the cam gear 22 is moved, the driving lever 23 is referred to the shaft pin 23 '. Rotates counterclockwise and the actuating pin 35 of the probe lever 26 is pushed against the stepped portion 23b of the actuating piece 23d of the drive lever 23 so that the probe lever 26 has a spring ( The tape 5 is brought into contact with the head 19 by defeating the force of 34 and rotating clockwise. During this operation, the levers 25 and 24 also rotate slightly but do not move to the tape 5 loading position. In this way, the tape 5 is wound so as to travel in the path of the supply reel 1, the roller 6, the guide post 32, the head 19 and the take-up reel 2, and in this state (Fig. 4), the idler The feed reel 1 or the take-up reel 2 is rotated by a separate driving force transmitted through the idler 29 of the assembly 30 so that the FF / REW is performed at this time in advance in a predetermined position of the tape 5. The specific signal that has been recorded is searched by the head 19.

In this way, when the specific signal is detected and the screen position desired to be viewed is confirmed and played back, the tape 5 is loaded and played back in the play mode of FIG. That is, when the cam gear 22 is further rotated counterclockwise in the state of FIG. 4, the probe lever 26 has its operating pin 35 in contact with the concentric portion 23c of the drive lever 23, and further There is no movement, and the rotation limit lever 25 continues to rotate clockwise with respect to the shaft pin 25 'as the actuating pin 25c continues to push the actuating hole 23e of the actuating lever 23. Since the limiting protrusion 25b has moved, it becomes possible to rotate to the take-up reel 2 side, and later, when clockwise power is transmitted from the separate drive source to the idler drive gear 29 ', the take-up reel 2 in the state shown in FIG. ) And the idler (29) separated from each other is in close contact with the winding reel (2) to drive the winding reel (2).

In addition, the pinch roller lever 24 receives the driving force of the drive lever 23 to the crimping lever 27 while the drive lever 23 rotates in the counterclockwise direction as the child, so that the pin 12 The pinch roller 12 is brought into close contact with the capstan shaft 13 by rotating clockwise.

In the meantime, the inclined guide post assembly 4, 4 'is also loaded by the separate driving means while the driving lever 23, the pivot limit lever 25 and the pinch roller lever 24 are operated as described above. (8 ') to the stopper (9) (9') so that the tape (5) is fed from the feed reel (1) to the inclined guide post assembly (4), the head drum (20) and the inclined guide post assembly (4). '), The head 19, the capstan 13 and the pinch roller 12, the guide post 33 is wound so as to travel to the winding (2) side, at this time the tape (5) is the guide post (32) Is not in contact with

When the tape 5 is loaded in this manner, the tape 5 is in contact with the head 19, that is, the brake on the winding reel 2 side is braked, and the brake on the supply reel 1 side is released to contact the head 19. The position of the tape 5 is not changed, and the tape 5 is pulled out from the supply reel 1 side and the loading is completed, so that the same position as that at the time of initial recording and playback can be found.

When unloading, as the driving lever 23 rotates clockwise by the clockwise rotation of the cam gear 22, the driving lever 23 returns by the force of the spring 34, and the rotation limit lever 25 is the driving lever 22. By the operating hole 23e, the pinch roller lever 24 also returns by the force transmitted to the crimping lever 27, and returns to the state of FIG.

As described above, the present invention provides a method of accurately recording and detecting a specific signal on the tape 5 at the same position by using a head 19 of a model without using a dedicated head for high speed search. 23, the exploration lever 26, the pivot limit lever 25 and the pinch roller lever 24 can be driven together, and the first guide post 32 and the second guide are also provided on the exploration lever 26. The guide 33 is formed so that the first guide post 32 guides the tape 5 at the time of FF / REW, and the tape 5 is guided at the second guide post 33 at the time of PLAY. By being able to play the role of the 36 and the guide post 36a, there is an advantage of contributing to cost reduction through the compounding of parts.

Claims (1)

An actuating surface 23d having a stepped portion 23b and a concentric circle portion 23c is formed at one end, and a driving lever 23 having an operating hole 23e formed therein is adjacent to the winding reel 2. 23 '), a guide post for inserting the actuating pin 23a fixed to the other end of the drive lever 23 into the cam arc 22a of the cam gear 22 and contacting the tape with the head 19 The guide post 33 is fixed to the bent portion 26b of the probe lever 26 having one end fixed to one end thereof, and the operation pin 35 is disposed adjacent to the shaft pin 26 'on the bottom surface of the probe lever 26. It is fixed to contact the operating surface (23d) of the drive lever 23, the operating pin (25c) is formed in the other end of the shaft pin (25 ') adjacent to the take-up reel (2) and inserted into the operating hole (23e) , The tape guide for high speed exploration of V-Cal, characterized in that the pinch roller 12 is connected to the driving lever 23 by the compression lever 27 to the front end of the pliers roller lever 24 bonded to one end. Value.