KR19980059056A - Cleaning device for video tape recorder video head - Google Patents

Abstract

The present invention relates to a cleaning apparatus for a video tape recorder video head, and more particularly, to a head drum assembly which is recorded on a tape as the cleaner is rotated together with the upper drum so that the head cleaning liquid is automatically sprayed onto the cleaner. The present invention relates to a cleaning apparatus of a video tape recorder video head capable of improving the recording and reproducing performance by cleaning a video head for outputting a signal or recording a signal on a tape. Head washing liquid tank 100 and one end fixed to the predetermined position of 1) is connected in communication with the outlet 101 of the head washing liquid tank 100 and the head washing liquid supply tube is equipped with a spray nozzle 103 at the other end 102 and the injection nozzle 103 are fixed to a predetermined direction and height and fixed at a predetermined position of the main base 1 Valve means 105 for opening and closing the head washing liquid supply tube 102 and the head washing liquid tank 100 and the valve means mounted at a predetermined position of the nozzle support member 104 and the head washing liquid supply tube 102. It is characterized in that it comprises a compressor 106 for mounting the head washing liquid supply tube 102 between the 105 to compress the head washing liquid.

Description

Cleaning device for video tape recorder video head

The present invention relates to a cleaning apparatus for a video tape recorder video head, and more particularly, to a head drum assembly which is recorded on a tape as the cleaner is rotated together with the upper drum so that the head cleaning liquid is automatically sprayed onto the cleaner. A cleaning apparatus for a video tape recorder video head capable of improving recording and playback performance by cleaning a video head for outputting a signal or recording a signal on a tape.

In general, a video tape recorder is a device for recording a video or audio signal on a magnetic recording tape or reproducing a recorded signal. Referring to FIG. 1, the video tape recorder is schematically illustrated in FIGS. 1 and 2. As described above, a traveling system for moving the tape along a predetermined path on the base 1, and a supply reel 10 and a winding reel 20 for supporting the tape cassette and driving the tape in a selected direction are provided. At the periphery of the supply reel 10 and the take-up reel 20, a brake device for restricting the rotation of the reel is provided if necessary.

The odometer is provided with a head drum assembly 30 which includes a video head 38 which rotates in contact with the tape from the tape cassette and records or reproduces a signal on the tape. The head drum assembly 30 has a lower drum 32 fixed to the main base 1 and an upper drum 34 rotatably fixed to the lower drum 32 by the main shaft 36. 38) is fixed to the upper drum to rotate at high speed is configured to rotate at high speed with the upper drum. In addition, the traveling system is provided with a sound reproducing head for reproducing a voice signal, and is provided with a capstan shaft 42 which rotates by the capstan motor 40 and cooperates with the pinch roller 44 to drive the tape.

And a reel driving device for driving any one of the reel selected from the supply reel 10 or the winding reel 20 receives power from the capstan motor 40 between the supply reel 10 and the take-up reel (20) ( 46) is installed.

Such a video tape recorder includes a video head for processing a video signal and a voice playback head for processing a voice signal as described above. The video head 38 has a high precision and contacts a tape and receives a signal from the tape. As it is read or recorded, it should be kept clean to obtain good image quality. That is, when foreign matters are attached to the video head 38, the signal scanning ability from the tape is sharply lowered and damage to the tape is required, thereby requiring a more clean state.

Therefore, conventionally, as shown in FIG. 1, outsert molding of the support member 51 having the support shaft 51a and the fixing protrusion 51b on the main base 1 on one side of the head drum assembly 30 is performed. In addition, a cleaning device 50 fixed to the support member 51 and provided with a cleaner 54 at its tip is provided.

According to FIG. 2, the cringing device 50 is integrally provided with an elastic lever 55 that is elastically caught by the fixing protrusion 51b on one side of the support part 52 that is rotatably supported by the support shaft 51a. And a cleaning lever 53 extending from the support portion 52 toward the head drum assembly 30 to fix the cleaner 54 to the front end thereof. The cleaning lever 53 is connected to the support 52 with a thin thickness to retain a predetermined elasticity.

In addition, one side of the support 52 is integrally provided with an actuating lever 56 arranged to interfere with the guide roller 4 provided in the pole base 3 moving along the guide rail 2 on the main base 1. do. The actuating lever 56 is pushed backward by the pole base 3 as the guide roller 4 moves forward for the tape loading to pressurize the cleaner 54 to the head drum assembly 30.

On the other hand, the cleaner 54 is mainly made of a sponge or a general cloth or cloth, and is configured to be in contact with the video head 38.

Thus, when the upper drum 34 rotates, the video head 38 rotates together with the upper drum 34 so that the cleaner 54 contacts the tip of the rotating video head 38 and removes foreign substances. do.

However, it is true that the cleaning device as described above has the effect of removing foreign matter from the video head, but the effect is not continuous and the video head may be secondarily contaminated by the cleaner by the contaminated cleaner due to its long term use. Severe friction with the cleaner may cause wear of the video head and contaminants may not be wiped off during heavy contamination of the video head.

That is, since the cleaner 54 is in constant contact with the head, foreign matters are removed from the video head 38 during the first cleaning operation, but after a certain period of time, foreign matters accumulate in the cleaner 54 itself. Not only that, but also the foreign matter from the cleaner 54 is reversed to the video head 38 to contaminate the video head 38, and furthermore, in the aging wear of the cleaner 54 due to long-term use, Not only is the problem worsened, in particular, there is a fear of wear of the video head 38 due to the contact of the cleaner 54 and the video head 38, which may adversely affect playback and recording performance, as well as a video tape recorder. If you do not use the camera for a long time and the video head is heavily contaminated by foreign materials such as dust, It is that it acts as a problem that does not wiped.

Accordingly, the present invention has been made in view of the above-mentioned conventional problems, and the object thereof is to significantly improve the cleaning efficiency and minimize the fear of wear of the video head, and to effectively remove the video head even in the case of severe contamination of the video head. An apparatus for cleaning a video tape recorder video head which can be cleaned.

1 is a plan view showing the configuration of a typical video tape recorder.

Figure 2 is a perspective view showing the configuration of a conventional video head cleaning apparatus.

3 is a plan view showing the configuration of a cleaning apparatus for a video head according to the present invention;

4 is a perspective view showing a main configuration of a cleaning apparatus of a video head according to the present invention;

Figure 5 is a schematic diagram showing a spray system structure of the head washing liquid according to the present invention.

* Explanation of symbols for main parts of the drawings

30: head drum assembly 50: cring device

100: head washing liquid tank 101: outlet

102: head washing liquid supply tube 103: spray nozzle

104: nozzle support member 104a: nozzle fixing ring

105 valve means 106 compressor

An object of the present invention is a cleaning apparatus for a video tape recorder video head, the head washing liquid tank and one end of which is fixedly installed at a predetermined position of the main base and having an outlet at the lower surface thereof are connected in communication with the outlet of the head washing liquid. A head cleaning liquid supply tube having an injection nozzle mounted at an end thereof, and a nozzle support member fixed to a predetermined direction and height and fixed to a predetermined position on a main base, and mounted at a predetermined position of the head cleaning liquid supply tube. A valve means for opening and closing a supply tube and a compressor mounted on a head cleaning liquid supply tube between the head cleaning liquid tank and the valve means to compress the head cleaning liquid, which is achieved by the cleaning apparatus of the video tape recorder video head. Can be.

Hereinafter, a preferred embodiment of a video head cleaning apparatus according to the present invention will be described in detail with reference to the accompanying drawings.

3 to 5 show a preferred embodiment of the cleaning device for a video head according to the present invention, according to the present invention, the head cleaning liquid tank 100 and the head cleaning liquid supply tube 102 to the cleaning device 50 described above. ), A nozzle support member 104, a valve means 105, and a compressor 106.

The head washing liquid tank 100 is a tubular shape having a predetermined size having a hollow therein and having an open upper surface, and having an outlet 101 formed in communication with an internal hollow at a central portion thereof and protruding downward, and an open upper surface portion. The cap 107 is detachably screwed and formed to be opened and closed, and is fixedly installed at one side end portion of the main base 1.

The head washing liquid supply tube 102 has a tubular shape having a predetermined length and diameter, and one end thereof is connected to the outlet 101 of the head washing liquid tank 100, and an injection nozzle 103 is mounted at the other end thereof.

The nozzle support member 104 is an inverted T-shaped synthetic resin, and a nozzle fixing ring 104a having a predetermined diameter is integrally formed at an upper end thereof, and is vertically formed by snap coupling or screwing at a predetermined position of the main base 1. It is fixedly installed.

The valve means 105 is a pressure check valve or a solenoid valve is mounted at a predetermined position of the head washing liquid supply tube 102 to open and close the head washing liquid supply tube 102, and when the valve means 105 is a solenoid valve Electrically connected to the compressor 106 is configured to open and close the head washing liquid tube 102 when the electricity is energized when a predetermined drive speed or more when the compressor 106 is driven.

The compressor 106 is mounted on the head washing liquid supply tube 102 between the head washing liquid tank 100 and the valve means 105, and the loading motor (not shown) is loaded at the forward rotation of the loading motor (not shown). Driven to compress the head cleaning liquid.

According to the present invention having the configuration as described above, the compressor 106 is driven by the driving force of the loading motor while the loading base is driven along the guide groove 2 while the loading motor is driven to compress the head cleaning liquid. At the time when the fouling base 3 is loaded, the fouling base 3 pushes the operation lever of the cleaning lever 53. Accordingly, the cleaning lever 53 rotates about the support shaft 51a to elastically press the cleaner 54 to the head drum assembly 30. At this time, the compressor 106 compresses the head washing liquid to a predetermined pressure or more, and when the valve means 105 is a pressure check valve, the head washing liquid is automatically compressed by opening the head washing liquid supply tube 102 by the pressure of the head washing liquid. The head washing liquid is injected into the cleaner 54 through the injection nozzle 103. When the valve means 105 is a solenoid valve, the head washing liquid is supplied with electricity when the head washing liquid is at a predetermined rotation speed or more. The head washing liquid is injected into the cleaner 54 through the injection nozzle 103 by opening the tube 102, and when the loading is completed, the loading motor is stopped to stop the driving of the compressor 106. 102 is closed by the valve means 105 so that the head washing liquid is no longer sprayed or leaked.

In this state, when the head drum assembly 30 starts to rotate, the video head 38 comes into contact with the cleaner 54 to rotate. Accordingly, the video head 38 can be reliably removed by the cleaner 54, which has the head cleaning liquid, and the compressor 106 is not driven because the loading motor reverses at the time of unloading. Since compression or driving rotation of the compressor 106 does not occur, injection of the head washing liquid does not occur, thereby preventing waste of the head washing liquid.

In addition, when the head washing liquid stored in the head washing liquid tank 100 is consumed in a large amount and needs to be replenished, the cap 107 may be opened and the head washing liquid may be replenished in an appropriate amount to allow continuous use.

As described above, the cleaning apparatus of the video tape recorder video head according to the present invention is rotated by the foul base and the loading motor, and the head washing liquid is compressed by the nozzle when the loading is completed. This allows the cleaner to clean the video head while the head wash liquid is closed, which not only removes debris from the video head but also prevents secondary contamination of the video head by the contaminated cleaner. By performing this lubrication role, the friction between the runner and the video head is minimized to prevent wear of the video head, thereby providing good image quality.

Claims (8)

In the cleaning apparatus of a video tape recorder video head, a head washing liquid tank (100) and one end of the head washing liquid tank (100) fixedly installed at a predetermined position of the main base (1) with an outlet (101) integrally formed on a lower surface thereof. The head washing liquid supply tube 102 and the injection nozzle 103, which are connected in communication with the outlet 101 of the main body and mounted with the injection nozzle 103 at the other end thereof, in a predetermined direction and height, Valve means 105 and the head cleaning liquid tank 100 for opening and closing the head cleaning liquid supply tube 102 are mounted at a predetermined position of the nozzle support member 104 and the head cleaning liquid supply tube 102 fixedly installed at a predetermined position. And a compressor (106) mounted on the head cleaning liquid supply tube (102) between the valve means and the valve means (105) for compressing the head cleaning liquid. The apparatus of claim 1, wherein the compressor (106) is driven by a loading motor. The cleaning apparatus of a video tape recorder video head according to claim 1, wherein said valve means (105) is a pressure check valve. 2. The cleaning apparatus of a video tape recorder video head according to claim 1, wherein said valve means (105) is a solenoid valve. 2. The cleaning apparatus of a video tape recorder video head according to claim 1, wherein the head cleaning liquid tank (100) has a cap (107) which is assembled to be opened and closed on a slope portion. 3. The apparatus of claim 2, wherein the compressor (106) is driven only when the loading motor rotates forward. The video according to claim 1 or 3, wherein the valve means (105) is a solenoid valve and is connected to the pusher (106) so that the compressor (106) is energized when the compressor (106) is at a predetermined driving speed or more to open and close. Cleaning equipment for tape recorder video heads. The cleaning apparatus for a video tape recorder video head according to claim 1, wherein the nozzle support member (104) is formed of an inverted T-shaped synthetic resin and has a nozzle fixing ring (104a) integrally formed at an upper end thereof. .