JPH0736209B2 - Head cleaner - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head cleaner for cleaning a head for a video deck or an audio deck, and has an improved means for applying a cleaning liquid to a cleaning tape.

[0002]

2. Description of the Related Art A conventional technique for applying a cleaning liquid to a cleaning tape is disclosed in, for example, Japanese Utility Model Application Laid-Open No. 57-126722.
There is a gazette, in which a liquid-impregnated body such as a sponge is fixed in a stationary position in the main body case so that it is always in contact with the cleaning tape, and the cleaning liquid is continuously applied in the longitudinal direction of the tape as the cleaning tape runs. Had been applied to.

Thus, in the type in which the cleaning liquid is continuously applied to the cleaning tape, there is a problem in that the cleaning tape clings to the head cylinder or the like during cleaning of the video head and the tape cannot run, for example. Therefore, as other conventional techniques for solving such a problem, there are, for example, JP-A-59-90224, JP-A-61-98209, JP-A-61-136315, and the like. The coating roller is rotatably arranged on the running line of the cleaning tape, and the cleaning liquid impregnated body protruding from a part of the peripheral surface of the coating roller is slidably contacted with the cleaning tape to intermittently apply the cleaning liquid to the cleaning tape. There is a thing to apply.

[0004]

However, conventionally, the liquid impregnating body for applying the cleaning liquid to the cleaning tape is in a fixed position regardless of the continuous coating method or the intermittent coating method.
However, after supplying the cleaning liquid to the liquid impregnated body,
It takes time to load the head cleaner into the deck and then feed the cleaning tape from the feed reel to run it and start cleaning the head. In that case, even in the conventional intermittent coating method, the liquid impregnated body on the coating roller may come into contact with the cleaning tape to some extent. In this case, the cleaning liquid is locally excessively applied from the liquid impregnated body to the cleaning tape during standby until the tape runs, which causes a problem of clinging.

Further, conventionally, when the cleaning liquid is replenished to the liquid impregnated body and the head cleaner is loaded on the deck, the cleaning liquid is applied to the cleaning tape when the cleaning tape is wound around the delivery reel. When actually using the head cleaner, a work of rewinding the cleaning tape fed from the feeding reel is required. This tape rewinding operation is performed after cleaning is completed or at the start of cleaning. However, if the cleaning liquid is applied to the cleaning tape even before the tape is wound up, when the tape is rewound after the cleaning is completed, the cleaning liquid is trapped between the tape winding layers on the feeding reel and is difficult to vaporize. Cause clinging to. In addition, the interposition of the cleaning liquid increases the adhesion between the tape winding layers on the delivery reel, and the cleaning tape may not be delivered smoothly from the delivery reel during the next use.

Further, when the cleaning tape is rewound at the start of cleaning after the cleaning liquid is replenished to the liquid impregnated body, the cleaning liquid is applied to the tape also at this time, and then the tape is unwound from the unwind reel to eject the head.
At the time of cleaning, the cleaning liquid is excessively applied to the tape in a double-coated state, which also causes the tape to be unable to run.

Therefore, an object of the present invention is to apply the cleaning liquid to the cleaning tape only when the cleaning tape is loaded in the deck and is correctly run in the tape feeding direction, and when the tape is running in the tape winding direction. In particular, the cleaning liquid is not applied to the tape at the time of non-use including when waiting for cleaning, thereby ensuring smooth running of the tape.

[0008]

The present invention SUMMARY OF] is configured to rotatably accommodate the supply reel 4 to the cleaning tape 2 is wound into the main body casing 1 as shown, torque leaning to applying the cleaning fluid to the cleaning tape 2 In a head cleaner in which the liquid applying means 10 is arranged,
The cleaning liquid applying means 10 includes a liquid impregnated body 11 and the liquid impregnated body 11.
It has a holder 12 for holding, and the holder 12 is a liquid impregnated body 11.
And contact with cleaning tape 2
In a non-application posture where the body 11 is separated from the cleaning tape 2.
The posture can be freely changed over, and it is always unpainted.
It has a spring member 20 that is urged to move in the cloth position.
And a convex portion 23 is provided around the flange of the feeding reel 4,
Make a part of the holder 12 face in the rotation trajectory of the convex portion 23 of
So that the holder 12 moves in the tape feeding direction B of the feeding reel 4.
Is engaged with the convex portion 23 by the rotation of the
The rudder 12 moves to the application posture against the spring member 20.
It is characterized by being in this way.

[0009]

The holder 12 is constantly urged by the spring member 20 so that the liquid impregnated body 11 is separated from the cleaning tape 2, so that unless the tape 2 travels in the deck,
In the unused state, the cleaning liquid is not applied from the liquid impregnation body 11 to the tape 2 even during the cleaning standby. Even when the cleaning tape 2 runs in the tape winding direction D in the deck, the cleaning liquid is not applied to the tape 2. When the cleaning tape 2 travels in the tape feeding direction B in the deck, that is, when the normal head cleaning is started, the holder 12 switches to the application posture in which the liquid impregnated body 11 contacts the tape 2,
In this state, the cleaning liquid is applied to the tape 2.

[0010]

According to the present invention, while the cleaning tape 2 is waiting in the deck until it runs, the tape 2
No cleaning liquid is applied to. Further, even if the cleaning tape 2 is rewound to the delivery reel 4 side after the cleaning is completed or started, the cleaning liquid is not applied from the liquid impregnation body 11 to the tape 2 at this time. The liquid impregnation body 11 applies the cleaning liquid to the cleaning tape 2 only while the tape 2 is running in the tape feeding direction for cleaning the head.

Therefore, even if a long waiting time is required until the liquid impregnation body 11 is supplied with the cleaning liquid and then loaded into the deck, the cleaning liquid is locally and excessively applied to the cleaning tape 2 when the head is cleaned. As a result, the tape runs smoothly and reliably without causing the tape running failure. In addition, the cleaning liquid is not applied between the tape winding layers of the cleaning tape 2 rewound on the feeding reel 4, which is also effective in preventing excessive application of the cleaning liquid at the time of head cleaning. The tape 2 can be smoothly fed out from the tape 4.

[0012]

1 to 5 show an embodiment in which the head cleaner according to the present invention is applied to a beta type video deck.
In FIG. 5, the main body case 1 has substantially the same appearance as the main body case of the beta type video cassette,
The take-up reel 3 and the pay-out reel 4 around which the cleaning tape 2 is wound are rotatably arranged on the left and right sides of the inside, and the tape guide members 5 and 6 are arranged on the left and right ends on the front side of the case.
A pocket 7 for tape loading is recessed at a location corresponding to between the tape guide members 5 and 6.

The cleaning tape 2 is delivered from the delivery reel 4 to the front side of the case, and is taken up by the take-up reel 3 via the tape guide members 6 and 5. The take-up reel 4 and the take-up reel 3 have upper and lower flanges 4b, 4a and 3b, 3a, respectively, and a reel brake 8 which is engageable and disengageable with teeth provided on the peripheral edges of the lower flanges 4a, 3a is provided in the main body case 1. Be prepared for. Further, a front lid 9 for opening and closing is provided on the front side of the case to cover and protect the cleaning tape 2 drawn out to the front of the case when not in use.

Inside the main body case 1, a cleaning liquid applying means 10 is arranged between the feeding reel 4 and the tape guide member 6 located in front of it. In FIG. 1 and FIG. 4, this cleaning liquid application means 1
Reference numeral 0 includes a liquid impregnated body 11 made of felt, sponge and the like, and a holder 12 holding the liquid impregnated body 11.

The holder 12 has its base end (front end) side inserted through and supported by a shaft 13 on the side of the main body case 1 that stands vertically between the case upper and lower walls 1a and 1b. The liquid impregnation body 11 is fitted and mounted. The holder 12 is swingable in a horizontal posture around the shaft 13 between a coating posture in which the liquid impregnated body 11 contacts the cleaning tape 2 and a non-coating posture in which the liquid impregnation body 11 is separated from the tape 2. A liquid injection port 16 is attached to a part of the upper wall 1a of the case corresponding to the upper part of the liquid impregnation member 11, and the cleaning liquid from the liquid injection port 16 is in a non-application posture from above the outside of the case. Can be replenished by injecting into 11.

As means for urging the holder 12 to swing in the non-coating posture, a spring bearing arm 12a extending integrally from the front end side of the holder 12 and a spring bearing 15 on the main body case 1 side are provided.
A spring member 20 made of a tension coil spring is mounted, and the spring member 20 swings and biases the holder 12 in a non-application posture in which the liquid impregnated body 11 separates from the cleaning tape 2 outward. Reference numeral 24 is a pin provided on the main body case 1 side for restricting the swing limit of the holder 12 in the non-application posture.

The holder 12 can be switched from the non-application posture to the application posture. As a mechanism for that, the holder 12
The sensing lever 21 is rotatably mounted on the shaft 22 and the sensing lever 21 is attached to the holder 1
The shaft 25 is wound with a spring 25 that biases the shaft 25 so that the spring 25 always comes close to the shaft 2. Further, a plurality of convex portions 23 (four in the illustrated example) which are engaged with and disengaged from the tip 21a of the sensing lever 21 are provided on the peripheral edge of the upper flange 4b of the feeding reel 4 at equal intervals in the circumferential direction. is there.

When the head cleaner is not in use,
Also, while the cleaning liquid is replenished to the liquid impregnated body 11 and loaded on the deck, the spring member 2 is in a standby state while the cleaning tape 2 is not running in the tape feeding direction B.
At 0, the holder 12 maintains the non-application posture, and the liquid impregnated body 11 is separated from the tape 2. Therefore, the liquid impregnated body 1
No cleaning liquid is applied from 1 to the tape 2.

When the head cleaner is loaded on the deck and the cleaning tape 2 runs in the tape feeding direction B, the convex portion 23 of the feeding reel 4 engages with the tip 21a of the sensing lever 21 as shown in FIG. Accordingly, the sensing lever 21 resists the spring member 20 and the holder 1
The tip end side of 2 is swung counterclockwise around the shaft 13 to switch the liquid impregnated body 11 to a coating posture in which it contacts the tape 2. When the convex portion 23 of the delivery reel 4 gets over the tip 21a of the sensing lever 21, the holder 12 is switched by the spring member 20 to the non-application posture of FIG. As a result, while the tape 2 is running in the tape feeding direction B, the cleaning liquid is intermittently applied to the tape 2 in accordance with the arrangement interval of the convex portions 23.

In FIG. 3, while the cleaning tape 2 is running in the tape winding direction D in the deck regardless of whether the cleaning is completed or started, the convex portion 23 of the feeding reel 4 has the tip 21a of the sensing lever 21. However, at this time, since the sensing lever 21 is kicked by the convex portion 23 and a rotational force in the direction of separating from the holder 12 against the spring 25 is applied, the holder 12 is always in the non-contact state. The cleaning liquid is never applied to the tape 2 while maintaining the application posture.

[Brief description of drawings]

FIG. 1 is a plan view of an essential part showing a non-application state of a cleaning liquid when a cleaning tape is fed out.

FIG. 2 is a plan view of an essential part showing a state of applying a cleaning liquid when a cleaning tape is fed out.

FIG. 3 is a plan view of an essential part showing a non-application state of a cleaning liquid when the cleaning tape is rewound.

FIG. 4 is a perspective view of a main part.

FIG. 5 is a partially cutaway plan view of the entire head cleaner.

[Explanation of symbols]

 1 main body case 2 cleaning tape 4 feeding reel 4b upper flange of feeding reel 11 liquid impregnation body 12 holder 13 shaft 20 spring member 21 sensing lever 23 convex part B tape feeding direction D tape winding direction

Claims (1)

[Claims] 1. A cleaning tape 2 in a main body case 1.
While rotatably housing a supply reel 4 which is wound, apply the cleaning fluid to the cleaning tape 2
Yes disposed a cleaning liquid application means 10, a cleaning liquid applying means 10, and holds it between the liquid-absorbing member 11
It has a holder 12, and the holder 12 cleans the liquid impregnated body 11.
The coating posture and the liquid impregnated body 11 to be brought into contact with the
From the cleaning tape 2 to the non-application posture
The posture can be changed freely, and it is always in the non-application posture.
It has a spring member 20 which is urged to move, and is a reel.
4 is provided on the peripheral edge of the flange of FIG.
With part of the holder 12 facing the rolling path, the holder 12
By rotating the feeding reel 4 in the tape feeding direction B,
Engages with the convex portion 23, and the holder 12 causes the spring portion to be engaged with this engagement.
Being able to move to the application posture against the material 20
Head cleaner characterized by .