JPH0638006U - Cassette type head cleaner - Google Patents

Abstract

(57) [Summary] [Object] To provide a simple and reliable liquid supply means for intermittently supplying a cleaning liquid along the longitudinal direction of a cleaning tape for cleaning a magnetic head. [Structure] A pair of hubs around which a liquid-absorptive cleaning tape is wound are housed in a cassette, the tape is pulled out to a front portion of the cassette and stretched, and a magnetic head is formed at the front portion of the cassette. It is an improvement of a cassette type cleaner that cleans the magnetic head by pressing the cleaning tape against the surface of the magnetic head entering from the mouth, and a liquid reservoir is provided on the upper surface of the hub which is the feeding side of the hub. A plurality of slits communicating with the liquid reservoir are formed at predetermined intervals on the peripheral surface of the hub, and a cleaning liquid supply hole is provided in the upper case above the liquid reservoir.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cassette type head cleaner.

[0002]

[Prior art]

 Conventionally, cassette type cleaners have been used to remove dirt on magnetic heads. Such a cassette-type cleaner accommodates a pair of hubs wound with a liquid-absorbent cleaning tape inside the cassette, pulls out the cleaning tape from the front part of the cassette, and stretches the cleaning tape. Cleaning of the magnetic head is performed by pressing the cleaning tape against the surface of the magnetic head coming in from the head insertion port. In order to improve the cleaning efficiency of the magnetic head, it is widely practiced to intermittently apply a cleaning liquid such as alcohol at regular intervals along the running direction of the cleaning tape to form a dry-wet pattern. For example, in Japanese Utility Model Laid-Open No. 60-150616, a core body impregnated with a cleaning liquid that covers half the circumference is arranged in the running path of the cleaning tape, and this is linked from the hub drive shaft of the tape recorder to the interlocking mechanism. Rotate through. However, this mechanism is complicated and costly. In Japanese Utility Model Laid-Open No. 59-36021, a cleaning tape of a cassette type cleaner is brought into contact with a rotary liquid supply roller having a liquid supply part and a non-liquid supply part. However, since the liquid supply roller can be rotated by friction with the cleaning tape, the rotation is lacking in smoothness, slippage, and certainty. Also, in Japanese Utility Model Laid-Open No. 62-3614, the cleaning tape is contacted from both sides with a rotary liquid supply roller having a liquid supply part and a non-liquid supply part by complicatedly refracting the running path of the cleaning tape. Describes that the cleaning tape is supplied with liquid at the same time that the liquid supply roller is rotated. However, this device requires a large number of guide rollers and mechanisms. Further, in Japanese Utility Model Laid-Open No. 60-166812, a cleaning solution is manually sprayed directly onto a wound portion of a cleaning tape from a spray device so that the cleaning solution is permeated between tapes having many layers to obtain a dry-wet pattern. There is. However, with this method, it is difficult to control the amount of liquid, and the formation of dry and wet patterns varies and lacks certainty.

[0003]

[Issues to be solved by the device]

 As described above, the conventional techniques have problems that the mechanism is complicated, smooth liquid supply is hindered, and it is difficult to form a predetermined dry and wet pattern. The purpose of the present invention is to solve such a problem.

[0004]

[Means for Solving the Problems]

 The cassette type cleaner according to the present invention accommodates a pair of hubs each having a liquid absorbing cleaning tape wound inside the cassette, and the tape is pulled out to the front portion of the cassette and stretched to form the front portion of the cassette. The cleaning of the magnetic head is performed by pressing the cleaning tape against the surface of the magnetic head that comes in from the magnetic head insertion port. A liquid reservoir is provided on the upper surface of the hub, a plurality of slits are formed on the peripheral surface of the hub at predetermined intervals to communicate with the liquid reservoir, and a cleaning liquid supply hole is provided above the liquid reservoir in the upper case. Set up. If the cleaning tape can run in the reverse direction, it can be used on the same upper surface of both hubs, or if the cassette-side cleaner can be used upside down, it can be used on the upper surface of the hub that is the feeding side when in use. To provide.

According to the cassette type cleaner of the present invention, any other mechanism is not necessary, and the structure of the hub itself is simply changed, and the upper case and / or the lower case is provided with the hole for supplying liquid. Therefore, the structure is simple and the liquid can be accurately and surely supplied.

[0006]

[Explanation of Examples]

 Hereinafter, an embodiment of the cassette type cleaner according to the embodiment of the present invention will be described in detail. FIG. 1 is a plan view of a cassette type cleaner in which a part of an upper case is cut away, FIG. 2 is a front view of the main part of the same, and FIG. 3 is a sectional view showing a structure of a hub. 1 and 2, the cassette type cleaner has a pair of rotary hubs 5 and 7 provided in a case formed by joining an upper case 1 and a lower case 3 to each other with an outer peripheral wall. The cleaning tape 9 which absorbs the cleaning liquid is wound, and the tape is pulled out to the front part of the cleaner and stretched. A capstan insertion hole 11, a pinch roller insertion opening 13, and a magnetic head insertion opening 15 are formed in the front portion of the cleaner.

Although not the subject of the present invention, in the present embodiment, a shaft 17 stands up from the case behind the magnetic head insertion port 15, and a lever 19 is pivotally attached thereto. A holder 21 is loosely fitted to the bead at the tip of the first arm 25 of the lever 19. The holder 21 holds a cleaning member 23 such as felt or nonwoven fabric facing the capstan insertion hole 11. The holder 21 is guided in the front-rear direction by guide members 59 and 61 provided in the lower case 3 so that the holder 21 can enter and exit the capstan insertion hole 11. The end portion of the second arm 27 of the lever 19 is an operation end of the magnetic head, and is arranged near the entrance of the magnetic head insertion opening 15. The lever 19 is biased in the clockwise direction in FIG. 1 by a leaf spring (or a coil spring) 29. When the magnetic head pushes the operating end of the lever 19, the lever 19 rotates counterclockwise and the cleaning member 23 can be pushed against the capstan via the holder 21.

Further, although not the subject of the present invention, the cassette type cleaner of this embodiment is provided with means for cleaning the pinch rollers. In FIG. 1, a cleaning member 45 made of felt, cloth, foam, non-woven fabric, leather or the like is provided along the inner surface of the left side wall of the case, and one end thereof faces the pinch roller insertion opening 13. The cleaning member 45 is movably held by restriction plates 37 provided at regular intervals. Further, at the lower left corner of the case, there is provided a feed roller 41 having a large number of protrusions 39 on the outer periphery and a cross groove 43 at the shaft end, whereby the cleaning member 45 is fixed at a desired position, and its tip is pinched. The roller can be contacted and a predetermined cleaning action can be performed.

Next, according to the present invention, the cassette type cleaner is provided with means for cleaning the magnetic head. The cleaner of the example shown in FIG. 1 is of the bidirectional drive type and is provided with means for supplying the cleaning liquid in association with the two hubs 5, 7. With reference to FIGS. 1 and 3, a liquid reservoir 31 having a substantially annular shape and an inclined bottom surface is provided on the upper surfaces of the hubs 5 and 7, and slits 33 are formed at substantially regular intervals along the peripheral portion of the hub. These slits 33 communicate the liquid reservoir 31 with the entire width of the outer peripheral surface of the hub around which the cleaning tape 9 is wound. The upper case 1 is provided with three supply holes 35 surrounding the hubs 4 and 7 for supplying the cleaning liquid, above the liquid reservoirs 31 of the hubs 5 and 7, respectively. If the upper case 1 is made of a transparent material, the alignment state of the liquid reservoir 31 and the supply hole 35 can be clearly understood.

[0010]

[Function and effect of the device]

 With the above configuration, when a cleaning liquid such as alcohol is injected from the supply hole 35, the cleaning liquid enters the liquid reservoir 31 and then wets the innermost layer of the cleaning tape 9 through the slit 33. The cleaning liquid passes through a plurality of layers of the wound cleaning tape due to a capillary phenomenon to wet each layer at a certain interval along the tape length direction. As a result, when the magnetic head enters the magnetic head insertion port 15, the spring-biased lever 19 presses the cleaning tape 9 against the magnetic head, which causes the cleaning tape 9 to alternate between dry and wet states. While wiping, the well-known cleaning action can be achieved.

The cassette type cleaner of the present invention does not require any complicated mechanism as in the past, and is simply manufactured at a low cost because the shape of a part of the hub is simply devised and the case is provided with the liquid supply hole. Moreover, the liquid supply by the dry and wet pattern is reliable, and an excellent cleaning action can be obtained.

[Brief description of drawings]

FIG. 1 is a partially cutaway plan view of a cassette type cleaner according to an embodiment of the present invention.

FIG. 2 is a front view of a part of the cassette type cleaner according to the embodiment of the present invention.

3 is a cross-sectional view taken along the line AA of FIG.

[Explanation of symbols]

 1 Upper Case 3 Lower Case 5 and 7 Rotating Hub 9 Cleaning Tape 11 Capstan Insertion Hole 13 Pinch Roller Insertion Port 15 Magnetic Head Insertion Port 17 Shaft 19 Lever 21 Holder 23 Cleaning Member 25 First Arm 27 Second Arm 29 Spring 31 Liquid Reservoir 33 Slit 35 Liquid Supply Hole 59, 61 Guide Plate

Claims (2)

[Scope of utility model registration request] 1. A pair of hubs, around which a liquid-absorbent cleaning tape is wound, are housed inside a cassette, and the tape is pulled out to a front portion of the cassette and stretched to form a magnetic tape formed at the front portion of the cassette. In a cassette type cleaner in which the cleaning tape is pressed against the surface of the magnetic head entering from the head insertion port to clean the magnetic head, a liquid reservoir is provided on the upper surface of the hub, which is the feeding side of the hub, A cassette type, characterized in that a plurality of slits communicating with the liquid reservoir are formed at predetermined intervals on the peripheral surface of the hub, and a cleaning liquid supply hole is provided above the liquid reservoir in the upper case. Cleaner. 2. The cassette type cleaner according to claim 1, wherein the liquid reservoir has a bottom inclined toward the outer circumference of the hub and is formed in a substantially annular shape, and the slit extends over the entire width of the hub.