KR100220092B1 - Tape loading device of vcr - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a loading device for a V-seal that enables loading of a tape using power of a capstan motor to reduce loading noise and perform a stable loading operation. A capstan motor 100 having a driving gear 110 mounted on a capstan motor shaft 102; A first loading plate 200 mounted to the main base 1 for linear reciprocating movement and having a rack gear 220 meshing with any one of the loading gears 13 and 23; The first loading plate 200 is rotatably engaged with one side of the spring 500 and the other side of the first loading plate 200 is formed with a rack gear 320 selectively meshing with the driving gear 110 of the capstan motor 100, A second loading plate 300 on one side of which the interference portion 310 is formed; A main plate 400 having an operating portion 410 interfering with the interference portion 310 of the second loading plate 300 so that the rack gear 320 of the second loading plate 300 is engaged with the driving gear 110, Respectively.

Description

V-Sial tape loading device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a V-shaped tape loading apparatus, and more particularly, to a V-shaped tape loading apparatus capable of reducing loading noises and enabling a stable loading operation by enabling tape loading using the power of a capstan motor.

In general, V-SIL is a device that records video signals on cassette tapes or reproduces recorded signals. 16-mm V-Sills or 8-mm V-Sills (or cam tosters) In recent years, digital VISCALs have been developed that use more compact tape.

These V seals also have a cassette and are equipped with a loading device for loading a cassette to seat the cassette in place and a tape loading operation for pulling the tape out from the loaded cassette to tightly close the periphery of the head drum assembly . The loading device must be quiet, perform stable operation, and require low slack of the tape upon loading.

Fig. 1 shows the construction of a conventional V-seal, which comprises a traveling system for moving a tape of a cassette (not shown) on a main base 1 along a predetermined path and a feeder for supporting the cassette and driving the tape in a selected direction A reel 10 and a take-up reel 20 are provided.

The traveling system is provided with a head drum assembly (2) that includes a video head that records a signal on a tape or reproduces a recorded signal while contacting and rotating the tape of the cassette. A voice reproduction head 3 for reproducing an audio signal is provided in the traveling system and a capstan motor shaft 5 which is rotated by the capstan motor 4 and cooperates with the pinch rollers 6 to travel the tape is provided . Side foil base 12 having guide rollers and oblique pawls moving along guide grooves 11 and 21 arranged on the main base 1 so as to wrap both sides of the head drum assembly 2, And a winding side pull base 22 are provided.

A reel driving device 7 (see FIG. 1) is provided between the supply reel 10 and the take-up reel 20 to receive power from the capstan motor 4 and to drive any one reel of the supply reel 10 or the take- ).

On the upper surface of the main base 1, a cam gear 31 rotated by a loading motor 30 is provided. An upper cam 31a for driving the pinch lever 8 is formed on the upper surface of the cam gear 31 and the other side of the pinch lever 8 to which the pinch roller 6 is fixed is coupled to the cam gear 31 A cam groove 31b for driving a relay plate 32 for transmitting power to the relay gear 33 is formed. The relay gear 32 and the relay gear 33 mesh with each other in a rack and pinion manner and the relay gear 33 is connected to the main plate 34 for converting the brake unit and the fore- It is combined with rack and pinion.

And a forearm base drive gear 40 that is selectively engaged with the main plate 34 and rotates in accordance with the movement of the main plate 34. [ A pair of loading gears 13 and 23 which are coupled to the supply side and winding side folio base 12 and 22 by a plurality of links 14 and 24 and are rotatably fixed on the main base 1, . The foroline base drive gear 40 is engaged with any one of the pair of loading gears 13 and 23. [

This V-shaped ball is driven by the rotation of the loading motor 30 and the cam plate 31 is driven so that the relay plate 32 linearly reciprocates in the longitudinal direction in the figure. The main plate 34 reciprocates linearly in the horizontal direction by the relay gear 33 that rotates as the relay plate 32 moves. As the forearm base drive gear 40 rotates by the main plate 34, the loading gear 23 rotates and the loading gear 13 meshed with the rotating gear 23 rotates.

Therefore, since the links 14 and 24 connected to the loading gears 13 and 23 respectively operate the false bases 12 and 22, the false bases 12 and 22 are engaged with the guide grooves 11 21, and then the tape is loaded on the peripheral edge of the head drum assembly 2 to be loaded thereon.

However, such a conventional loading apparatus has a complicated structure, which is not only difficult to assemble, but also has a problem of troublesome work for disassembly and repair.

That is, at the time of assembling, each of the loading gears 13 and 23 and the foreground-base driving gear 40 must be assembled on the main base 1. At this time, the fore-and-aft base drive gear 40 is meshed with one of the loading gears 13 and 23 and is engaged with the main plate 34, so that it is required to be assembled at an accurate assembly position. Therefore, it is required to skillfully assemble when assembling. In order to disassemble each member in the reverse order, disassembly must be performed. Therefore, the operation is delayed, I had a falling problem.

In addition, in the related art, the loading operation is abruptly performed, so that the loading operation is unstable and the noise is increased. That is, the main plate 34 performing the actual loading performs various modes by the linear reciprocating motion. For example, eject, initialize, reverse play, slow play, play / stop, fast forward / rewind, and the like. Accordingly, a section required for loading is set in a predetermined section of the main plate 34 when the main plate 34 reciprocates linearly. In order to solve this problem, it is difficult to improve the loading operation because the load is required to be allocated in a short interval. As a result, the movement of the foil base 12 (22) Of course, noise generation could not be suppressed.

Particularly, in the above-mentioned loading apparatus, since the power of the loading motor 30 is transmitted through various stages in the loading, the loads generated in the respective portions are concentrated in the loading motor 30, , There is a problem that a slack is generated in the tape after loading due to a decrease in drive torque.

That is, in the conventional loading operation, the power of the loading motor 30 is transmitted to the cam gear 31, the relay plate 32, the relay gear 33, the main plate 34, the loading driving gear 40, (13) and (23), so that more members than necessary are involved in loading, so that the loads occurring in the respective parts are accumulated. Since the accumulated load is concentrated in the loading motor 30, the load is shortened and the torque is lowered due to the overload of the motor. In addition, a phenomenon in which the tape is stretched occurs, and an impact is applied to the tape at the time of the initial driving, so that there is a problem that not only the tape is damaged but also the image quality is poor.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to simplify the configuration of a loading device, minimize noise during loading, And a tape loading apparatus.

Another object of the present invention is to provide a V-seal tape loading apparatus that minimizes the load applied to the cam gear due to loading and minimizes the occurrence of sagging of the tape upon loading.

FIG. 1 is a plan view schematically showing the structure of a mechanism of a conventional V-seal,

FIG. 2 is a bottom view showing a configuration of a tape loading apparatus according to the present invention. FIG.

3 is a bottom view showing an operation state of the tape loading apparatus according to the present invention during loading,

4 is a bottom view showing an operation state of the tape loading apparatus according to the present invention at the time of completion of loading.

DESCRIPTION OF THE REFERENCE NUMERALS

1: main base 2: head drum assembly

11, 21: guide grooves 12, 22: foil base

13, 23: a loading gear 14, 24: a link

100: capstan motor 110: drive gear

200: first loading plate 210, 212: guide pin

220: rack gear 300: second loading plate

310: Interference part 320: Rack gear

400: main plate 410: operating part

The object of the present invention is achieved by a capstan motor for driving a tape, a loading motor for reciprocating a main plate which rotates a cam gear and performs various modes by a relay plate and a relay gear, A V-shaped ball having a pair of loading gears rotating in opposite directions and performing tape loading, comprising: a capstan motor having a driving gear on a capstan cotter shaft; A first loading plate installed to be linearly reciprocable to the main base and having a rack gear meshing with one of the loading gears; A second loading plate on which one side of the first loading plate is rotatably held by the spring and the other side of which is formed with a rack gear selectively meshing with the driving gear of the capstan motor, And a main plate having an operating portion in which the rack gear of the second loading plate interferes with the interfering portion of the second loading plate such that the drive gear engages with the intervening portion of the second loading plate.

Hereinafter, preferred embodiments of a tape loading apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

FIGS. 2 to 4 are views for explaining the tape loading apparatus of the VSS according to the present invention. The basic structure of the VSS shown in FIG. 1 will be described with the same reference numerals.

Referring to FIG. 1, a cam gear 31 is provided on the main base 1 of the present invention, which is rotated by a loading motor 30. The cam gear 31 is provided with a cam groove 31b for driving a relay plate 32 for transmitting power to the relay gear 33. [ The relay plate 32 and the relay gear 33 are in a rack-and-pinion engagement.

FIG. 2 is a bottom view of the main base to show the structure of the tape loading apparatus according to the present invention. The guide rollers 11 and 21 which are arranged on the main base 1 in such a manner as to wrap the both sides of the head drum assembly 2 on the main base 1, (12), and a winding side pull base (22).

A pair of loading gears 13 and 23 which are coupled to the supply side and winding side pull bases 12 and 22 by links 14 and 24 and which are rotatably fixed on the main base 1, .

Meanwhile, the present invention includes a main plate 400 which is linearly reciprocated by the relay gear 33 described with reference to FIG. 1 and performs various modes. A first loading plate having a rack gear 220 linearly reciprocating by guide pins 210 and 212 provided on the main base 1 and engaging with one of a pair of loading gears 13 and 23, (200).

A rack gear 320 is rotatably connected to the first loading plate 200 on the one side and selectively meshes with the driving gear 110 on the capstan motor shaft 102 of the capstan motor 100 A second loading plate 300 is formed. The main plate 400 interferes with the actuating part 410 formed on the main plate 400 when the main plate 400 is linearly reciprocally moved to the one side of the second loading plate 300 to move the rack gear 320 to the driving gear 110, The interference portion 310 is formed. The operating part 410 formed on the main plate 400 is in a state in which the second loading plate 300 always engages with the driving gear 110 when the second loading plate 300 moves a horizontal distance required for loading To be able to keep it.

The second loading plate 300 is engaged with the first loading plate 200 by means of the spring 500 so that the second loading plate 300 is in a state of no load, The second loading plate 300 does not interfere with the driving gear 110 when the first loading plate 300 and the second loading plate 300 do not interfere with each other. At this time, it is preferable that a stopper 330 for restricting rotation of the second loading plate 300 at a predetermined position is provided on the main base 1.

Now, operation of the V-seal according to the present invention on the tape loading apparatus will be described.

First, when the cam gear 31 is rotated by the driving of the cam gear 31, the relay plate 32 rotates the relay gear 33 by the rotation of the cam gear 31, and the relay gear 33 The main plate 400 linearly moves to reach the loading position.

3, when the main plate 400 reaches the loading position, the actuating part 410 of the main plate 400 interferes with the interference part 310 of the second loading plate 300, do. The second loading plate 300 is rotated while the elastic force of the spring 500 is rotated and the rotation of the second loading plate 300 causes the rack gear 320 of the second loading plate 300 and the capstan motor The driving gears 110 provided on the capstan motor shaft 102 of the motor 100 are engaged with each other.

In this state, when the capstan motor 100 rotates in a predetermined direction (counterclockwise in the drawing), the second loading plate 300 is moved so that the first loading plate 200 moves along the guide pins 210 (212). ≪ / RTI >

Accordingly, as shown in FIG. 4, the rack gear 220 rotates the loading gear 23, so that the pair of loading gears 13 and 23 are rotated in opposite directions. The rotation of the loading gears 13 and 23 drives the take-up and feed-side false bases 12 and 24 via the respective links 14 and 24, The tape is taken out and moved along the guide grooves 11 and 21 so that the tape is brought into close contact with the peripheral edge of the head drum assembly 2. [

The second loading plate 300 is rotated by the restoring force of the spring 500, and at the same time, the second loading plate 300 is rotated by the restoring force of the spring 500. At this time, The gear 320 is separated from the driving gear 110 of the capstan motor 100 and the rotation is restricted by the stopper 330. [ Meanwhile, the present invention can perform unloading in the reverse order of the above.

According to the present invention, the capstan motor 100 is very easy to control its rotational speed, so that the rotational speed at the time of loading is relatively small, so that sufficient driving torque is obtained and load noise is reduced.

As described above, the V-seal tape loading apparatus according to the present invention comprises a first loading plate guided on a main base and engaged with any one of a pair of driving gears interlocked with each other, And a second loading plate selectively engageable with the capstan motor by being interlocked with the main plate so as to be rotatably engaged with the first loading plate to move to the loading position with respect to the first loading plate, And the second loading plate move and enable tape loading, thereby simplifying the configuration of the tape loading apparatus and minimizing the loading noise. In particular, since the power of the capstan motor is transmitted to the loading gear through the short path during the loading, the loading load is reduced, so that the loading motor is used as a power source for the loading, It is possible not only to extend the tape, but also to perform a stable loading operation, thereby preventing the tape from being slacked after loading.

Claims (2)

And a loading motor for reciprocating a main plate for performing various modes by rotating the cam gear by means of a relay plate and a relay gear so as to reciprocate one another, And a pair of loading gears for performing tape loading by rotating the capstan motor shaft in a direction of the capstan motor shaft, the capstan motor shaft having a driving gear; A first loading plate 200 mounted to the main base 1 for linear reciprocating motion and having a rack gear 220 meshing with any one of the loading gears 13 and 23; A rack gear 320 selectively engaging with the driving gear 110 of the capstan motor 100 is formed on the other side of the first loading plate 200, A second loading plate 300 on one side of which an interference portion 310 is formed; A main plate (410) having an operating portion (410) interfering with the interference portion (310) of the second loading plate (300) so that the rack gear (320) of the second loading plate 400). ≪ / RTI > The tape loading apparatus of claim 1, wherein a stopper (330) for restricting rotation of the second loading plate (300) is additionally provided on the main base (1).