KR0122991Y1 - Cleaning apparatus of tape recorder drum - Google Patents

Abstract

The present invention relates to a drum cleaning apparatus for a tape recorder, wherein a protrusion is formed on a sub chassis fixed to be movable forward and backward on the main chassis, and a lever having a contact portion integrally formed to contact the protrusion is fixed on the main chassis. The cleaner for rotatably fixing the head and drum at the same time is operated by the forward and backward movement of the subchassis, so that the head and the drum are washed for a long time, thereby increasing the washing effect and obtaining a clear picture quality.

Description

Drum Washer of Tape Recorder

1 is a plan view schematically showing a state in which a drum washing apparatus of a conventional tape recorder is operated.

Figure 2 is a plan view showing the drum cleaning apparatus when unloading the tape recorder according to the present invention.

3 is a plan view showing a drum cleaning apparatus when the tape recorder of FIG. 2 is loaded.

4 is a side cross-sectional view showing a drum cleaning apparatus according to the present invention.

* Explanation of symbols for main parts of the drawings

10, 30: subchassis 10a, 30a: long hole

11 main chassis 12: set screw

13: drum 14: pole bass

20, 34: fixed shaft 21, 33: lever

22, 35: cleaner roller 23, 36: fixing pin

24: stopper 25: fixed part

26: spring 31: protrusion

32: CLEANER

This invention relates to a drum cleaning device of a tape recorder, and more particularly, to contact the cleaning device for a predetermined time with a head-mounted drum before loading to the drum side with the tape ejected to the subs Chassis. It relates to a drum recorder of the tape recorder to increase the cleaning effect.

In general, deck mechanisms, such as video tape recorders (VTRs) and digital audio tapes (DATs), which use cassettes with built-in tapes, include heads for recording or playing back information on tapes. It is installed on the outer circumference to scan a predetermined image track of the tape as the drum rotates.

When dust or other foreign matter is attached to the head and drum that play such a role, image quality is degraded when recording or reproducing information on a tape, and thus, there is an urgent need for a cleaning device for removing the same.

1 is a plan view illustrating a state in which a drum cleaning apparatus of a conventional tape recorder is operated. A plurality of long holes 10a are formed at both sides of a subsash 10 on which a tape is seated, and the subsash 10 is formed of a main chassis. 11) a drum (13), which is fixed by a fixing screw (12) so as to be able to move forward and backward from the top, and which has a head (not shown) at the center of the main chassis (11) for recording or reproducing a signal on a tape. The pole base 14 which loads and unloads a tape is provided in the drum 13 both sides.

In addition, a guide groove 11a for guiding the movement of the pole base 14 is formed on the main chassis 11 so that the fixed shaft 200 is vertically upward toward the upper right side near the guide groove 11a. The lever 21 is rotatably fitted to the fixed shaft 20, and a cleaner roller 22 is rotatably mounted by a fixing pin 23 at a free end of the lever 21. Then, the convexly bent portion of the lever 21 is intruded into the upper portion of the guide groove (11a) formed in the main chassis (11).

On the other hand, the upper portion of the main chassis 11 is equipped with a stopper 24 for limiting the movement range of the lever 21, the spring (26) in the fixing portion 25 protruding on one side of the main chassis (11) One end is connected, and the other end of the screen 26 is connected to the lever 21.

In the drum cleaning apparatus of the conventional tape recorder having the above-described configuration, when the tape seated on the subchassis 10 is loaded to the drum 13 installed at the center of the main chassis 11, the driving force of the capstan motor (not shown) The long hole 10a of the subchassis 10 is slid along the fixing screw 12 by the gear group for transmitting the advancing toward the drum 13 which rotates at high speed, and the pole base 14 is connected to the main chassis 11 at the same time. Loaded along the guide groove (11a) formed, the convexly bent portion of the lever (21) installed to invade at a predetermined position of the guide groove (11a) is in contact with the pole base 14, the center of the fixed shaft (20) Rotate counterclockwise.

At this time, the spring 26 connected to one end of the lever 21 is tensioned, and the cleaner roller 22 installed at the free end of the lever 21 contacts the outer circumferential surface of the drum 13 while rotating at a high speed. 13) will be cleaned. Meanwhile, when the pole base 14 is moved, the pole base 14 is released from the bent portion of the lever 21 and at the same time the tensioned spring 26 is compressed to restore the lever 21 to the initial position. The lever 21 is prevented from being moved beyond the initial position by the stopper 24 protruding from the main chassis 11. That is, the movement range of the lever 21 according to the compression force of the spring 26 is to be limited.

However, the conventional drum cleaning apparatus as described above has a very short time for cleaning foreign substances such as dust attached to the head and drum since the washing apparatus is operated in accordance with the movement of the pole base for loading or unloading the tape. There was a problem in that the sharpness of the image quality was degraded when recording or reproducing information on the tape because the foreign matter attached to the drum could not be cleaned.

This invention is devised to solve the above problems, and the object of the invention is to operate the cleaner to wash the head and drum at the same time by the sub-chassis to clean the head and drum for a long time to increase the cleaning effect, and to improve the clear picture quality The present invention provides a drum cleaning apparatus for a tape recorder that can be obtained.

The drum cleaning device of the tape recorder according to the present invention for achieving the above object is a cleaning device for washing the head and the drum at the same time the sub chassis is sliding on the main chassis, the front, The contact means formed in the sub-chassis fixed to the reverse movement and washing the drum is rotated at high speed during ejection of the tape, and the contact means and at the same time the cleaning means separated from the drum.

Hereinafter, with reference to the accompanying drawings, a preferred embodiment of a drum cleaning apparatus for a tape recorder according to the present invention will be described in detail.

2 to 4 are plan and side cross-sectional views showing the operating state of the cleaning apparatus when the tape recorder according to the present invention is loaded and unloaded. The traveling system for transferring the tape to the drum side is the same as the conventional configuration. The washing means having a predetermined inclination is formed on the inclined surface formed inside the sub sash 30 on which the tape is seated, and the washing means is separated from the drum 13 which is in contact with the protrusion 31 and rotates at high speed. The cleaner 32 is installed at the upper end of the main chassis 11.

In addition, the cleaner 32 in contact with the drum outer circumferential surface which is rotated at a high speed during ejection of the tape has a U-shaped lever having a contact portion 33a integrally formed at one end thereof so as to contact the protrusion 31 formed in the subchassis 30. It consists of 33, The fixed shaft 34 is fitted so that this lever 33 can rotate on the main chassis 11 upper part.

In addition, at one end of the lever 33, a cleaner roller 35 for washing the drum 13 which is rotated at a high speed is rotatably fixed by a fixing pin 36, and on one side of the main chassis 11, One end of the spring 26 is connected to the protruding fixed portion 25 and another end of the spring 26 is connected to the lever.

The drum recorder of the tape recorder according to the present invention configured as described above is a gear group that transmits the driving force of the capstan motor when the tape seated on the subchassis 30 is loaded to the drum 13 installed at the center of the main chassis 11. The long hole 30a of the subchassis 30 is moved toward the drum 13 which is rotated at a high speed while being slid along the fixing screw 12 by the guide groove 11a in which the pole base 14 is formed in the main chassis 11. Is loaded along

At this time, when the protrusion 31 protruding from the sub chassis 30 comes into contact with the contact part 33a of the cleaner 32, the lever 33 of the cleaner 32 is half-centered about the fixed shaft 34. The first cleaning is completed by separating the cleaner roller 35 from the drum 13 which rotates in the machine direction and rotates at a high speed.

Then, when the tape seated on the subchassis 30 is unloaded, the spring 26 connected to the fixing portion 25 mounted on one side of the main chassis 11 is compressed and at the same time the protrusion of the subchassis 30 31 is second cleaning of the head and the drum while leaving the contact portion (33a) of the cleaner (32).

As described above, according to the drum cleaning apparatus of the tape recorder according to the present invention, a contact means is formed on a sub chassis fixed to be movable forward and backward on the main chassis, and in contact with the contact means, the drum rotates at a high speed. Unlike the conventional method of washing the drum with a separate washing means mounted on the main chassis, the cleaner for washing the head and the drum at the same time is operated by the sub-chassis to increase the washing effect by increasing the washing effect by clearing the head and the drum for a long time. You can get it.

Claims (2)

In the drum recorder of the tape recorder in which the subchassis (30) is slid on the main chassis (11) to clean the head and the drum (13) by the operation of a lever, the protruding portion is formed at the tip of the subchassis (30), The lever is a drum cleaning device of a tape recorder, characterized in that the contact portion (33a) is formed in contact with the protrusion (31) during sliding of the sub-chassis (30). The drum washing apparatus according to claim 1, wherein said contact portion (33a) has an inclined surface.