JPH051525B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a head cleaner that is applied to a player that receives a magnetic tape cartridge for video or audio, and mainly cleans a magnetic head on the player side.

[Prior Art] This type of head cleaner stores a predetermined amount of cleaning tape in a cartridge case that has an external shape that is substantially the same as a real magnetic tape cartridge for video or audio. do. When the player is loaded, the cleaning tape is pulled out from the front of the case by a tape pull-out member on the player side, and is pressed against the circumferential surface of the rotating magnetic head to clean the head surface.

However, in head cleaners that use a stop cleaning method in which the cleaning tape comes into contact with the rotating magnetic head while it is stopped, cleaning is stopped by releasing the cleaning tape from the magnetic head after a certain period of time, and then the cleaning tape is removed from the case. It is necessary to rewind the cleaning tape that has been pulled out into the cartridge case. In addition, since the cleaning tape that is pulled out of the case remains stationary, the rotating head of a video deck, for example, must be driven to rotate so that it can be used without any problems during the player's various operating modes, such as playback and rewinding. You are requested to do so.

One of these head cleaners is
-There is one shown in Publication No. 105321. In this method, the cleaning time is defined using the optical path for detecting the end of the magnetic tape cartridge. In other words, a light-shielding tape separate from the cleaning tape is formed into an endless loop, the light-shielding tape is wound around a take-up reel in a state that crosses the end detection optical path, and the light-shielding tape is wound at the same time as cleaning starts. After being wound onto a reel and after a certain period of time has elapsed, a slot opened in a part of the light-shielding tape is positioned on the end detection optical path, allowing the detection light to pass through and being detected by the optical sensor. In this way, the drive of the take-up reel, magnetic head, etc. is stopped, and cleaning is stopped. The cleaning tape is separately arranged to be pulled out from a loading pocket in the center of the case, and when the tape is pulled out, a slot opened in a part of the cleaning tape is located on the end detection optical path.

In addition, in a real magnetic tape cartridge, after detecting the end of the tape, the feed reel is driven to rewind the magnetic tape that has been pulled out of the case back into the case, so a head cleaner can also rewind the cleaning tape into the cartridge case. This operation is used to rewind the disc. That is, one end of the cleaning tape is fixed to the feed reel so that the cleaning tape is drawn into the cartridge case and stored in the eject mode.

[Problem that the invention seeks to solve]

As mentioned above, in the case where the optical path for detecting the end of the tape in a magnetic tape cartridge is used as is and the cleaning time is defined by the circulation cycle of a light-shielding tape that is separate from the cleaning tape, the light source for the optical sensor is located in the cartridge case. Due to the positional relationship of penetrating into the center of the inner surface, the movement path of the light-shielding tape, cleaning tape, etc. tends to become complicated.

In addition, since the cleaning time is defined by the rotation cycle of the endless light-shielding tape, the timing of cleaning start and stop may vary due to the characteristics of the player's drive mechanism, such as variations in inertia or time lag of a series of operations. In particular, if there are gaps in stop timing, there is a risk that the cleaning time may be set unnecessarily long, or conversely, the necessary time may not be secured.

In the conventional example mentioned above, the light-shielding tape is endless, so the stop and start parts are close to each other.
If the engine remains stopped in a stopped state, restarting may not work reliably.

Furthermore, in head cleaners that employ a stop-cleaning method, cleaning tapes are often made of natural or artificial leather, but these tapes are thicker than the cloth cleaning tapes that are commonly used. Therefore, when loaded into a predetermined extraction position, the cleaning member tends to come into contact with the magnetic head with stronger pressure than other cleaning members.
In particular, if the cleaning time is long, there are problems such as damaging the rotating magnetic head drive mechanism and making the cleaning tape more likely to deteriorate. Furthermore, in the case of wet cleaning in which a cleaning liquid is used in combination, the frictional resistance on the head surface is orders of magnitude greater than in dry cleaning, so an increase in cleaning time should be avoided at all costs.

As described above, both the method of stopping the cleaning tape for cleaning and the other method of cleaning while moving the tape have a problem in that the setting of the cleaning time varies.

This invention attempts to eliminate the above-mentioned problems by always keeping the cleaning time constant.

[Means for solving problems]

As shown in FIG. 1, the head cleaner of the present invention has a cartridge case 1 having substantially the same external shape and function as a commonly used audio or video magnetic tape cartridge. , has a cleaning tape 2 inside thereof.

The cleaning tape 2 is pulled out of the case by a tape pull-out member L on the player side, and is brought into circumscribed contact with the magnetic head H on the player side. For this purpose, the cleaning tape 2 is led out and faces one of the tape loading pockets 13 recessed in the front surface of the cartridge case 1. Preferably, a friction pulley 1 corresponding to a payout reel as shown in the figure
The tape path of the cleaning tape 2 is configured such that it crosses the front edge of the opening of the pocket 13 that is closest to the opening of the pocket 13.

In order to stop cleaning after a predetermined period of time (for example, 3 seconds) has passed since the start of cleaning, a light source 61 is arranged on the cartridge case 1 side in correspondence with the optical sensor P for detecting the end of the tape on the player side.

It has a start detection means 60 that detects the start of cleaning by detecting the operation of the player or the operation of the head cleaner component. As the detection means 60, for example, one that detects the rotation of the friction pulley 11 corresponding to a take-up reel and operates the switch 65 can be considered.

A power source 63 for the light source 61 and a start detection means 6
Light source 61 after a certain period of time has passed after receiving the signal from 0
A time setting means 62 is provided for controlling the power supply so that the current is applied to the timer. For example, as the time setting means 62, a tire circuit is interposed between the power source 63 and the light source 61.

[Effect]

The cleaning tape 2 is pulled out of the case by a tape pull-out member L on the player side, contacts the peripheral surface of the magnetic head H, and starts cleaning.
Simultaneously with the start of this tape loading operation, the magnetic head H is previously driven to rotate, and the reel drive shaft is driven simultaneously with the completion of the tape loading operation. Therefore, for example, by detecting the drive of the reel drive shaft by the start detection means 60, it is possible to detect that cleaning has started. Simultaneously with this detection, an electric signal is applied from the start detection means 60 to the time setting means 62 to start measuring time. When a preset time has elapsed, a driving current is applied to the light source 61, and the optical sensor P of the player is activated, resulting in the same state as when detecting the end of a real magnetic tape. Now the drive of each drive member is stopped,
Cleaning stops.

〔Effect of the invention〕

The head cleaner according to the present invention as described above is uniquely equipped with a light source 61, and by emitting light and finishing the cleaning after a certain period of time has elapsed from the start of cleaning, the head cleaner always performs accurate cleaning for a certain period of time. By bringing the tape 2 into contact with the magnetic head H, proper cleaning can be performed.

Unlike the conventional example in which the cleaning time is defined by the rotation cycle of the light-shielding tape, there is no time lag or accumulation, and there is no possibility of damage to the magnetic head H, its drive mechanism, or the cleaning tape 2 due to a prolonged cleaning time. You can definitely prevent this from happening.

Since the light source 61 is arranged near the side wall of the cartridge case 1 in correspondence with the optical sensor P on the player side, there is no need to ensure at least an optical path within the cartridge case 1 for detecting the end of the tape. Accordingly, the arrangement of the cleaning tape can be arbitrarily set, and the movement path of the cleaning tape can be simplified, that is, the structure of the cartridge case 1 can be simplified.

〔Example〕

2 to 8, the head cleaner shown in the figures has a cartridge case 1 having the same external shape and function as a real VHS type magnetic tape cartridge. A cleaning tape 2 is held inside this case. cleaning tape 2
has one end connected to the supply reel 3 and the other end connected to the take-up reel 4.
are respectively latched and connected. Both reels 3 and 4
A pilot roller mechanism 5, a tape surface switching mechanism 6, etc. are arranged in the middle of the path of the cleaning tape 2 between the two. Also, inside the case 1, a cleaning means 9 for a capstan C and a pinch roller Q, and a pair of left and right friction pulleys 1 corresponding to tape reels in a magnetic tape cartridge are provided.
0, 11, and an auto-stop means 12 for defining a cleaning time. These details will be explained individually below.

(1) Case structure The cartridge case 1 is made by combining upper and lower plastic cases 1a and 1b with their lids fitted together, and has recessed pockets 13 and 14 for tape loading and a pocket 15 for a capstan on the front surface. It is equipped with a front lid 16 that opens and closes the front of the case.

This front cover 16 is rotatably biased to the closed position and locked in the closed position in the same way as the front cover of a real magnetic tape cartridge, and when loaded into the player, it is automatically The lock is released and the top opens at the same time.

The bottom wall of the lower case 1b is provided with positioning holes 17, corresponding to standard members such as a positioning pin on the player side, a reel brake release pin, a reel drive shaft, and a lamp for detecting the starting and ending ends of the tape.
17, release pin hole 18, drive shaft insertion hole 19,1
9. Lamp holes 20 and the like are formed in predetermined shapes at predetermined positions. Also, lower case 1b
A groove 21 for preventing erroneous loading is formed in the center of the lower surface of the lamp hole 20 in a prescribed manner so as to cross the lamp hole 20 back and forth. These holes and grooves are provided mainly to allow the cartridge case 1 to be loaded into the player without any trouble.
8 and 20 have no direct relation to the cleaning operation.

In FIG. 4, friction pulleys 10 and 11 having engagement teeth in the form of spline holes inside are rotatably disposed in each drive insertion hole 19 and 19, respectively. The friction pulleys 10 and 11 engage with the reel drive shaft S when loading the head cleaner into the player, and are driven to rotate according to each operation mode. A rubber ring 23 for driving the aforementioned supply reel 3, pilot roller mechanism 5, tape surface switching mechanism 6, etc. is fixed to the lower side of the outer peripheral surface of each friction pulley 10, 11.

(2) Cleaning tape and its arrangement The cleaning tape 2 mainly consists of a cleaning ribbon with liquid absorbing properties, with lead tape connected to both ends. It has a total length including the length that allows the tape to be wound several times. The cleaning ribbon used is a tape material such as natural leather, artificial leather, woven fabric, or non-woven fabric, or a plastic sheet with the above-mentioned sheet material laminated on one side. In consideration of damage to the head surface, ability to remove microdust, durability, etc., a cleaning ribbon made of artificial leather is preferable.

A pilot roller 29 and a tape guide 24 are located on both sides of the opening of the pocket 13 on the right side when facing the figure.
Place. The cleaning tape 2 is guided between these members 29 and 24 so that the cleaning tape 2 is pulled out of the case by the tape pull-out member L. pilot roller 2
Three guide pins 25 are arranged between the tape guide 24 and the supply reel 3 to guide the cleaning tape 2 so as to bypass the friction pulley 10 on the right side. Four guide pins 26 that guide the cleaning tape 2 along the peripheral wall of the storage case 1
Place. In other words, if the supply reel 3 is the starting end, the cleaning tape 2 is
The tape path detours around behind the friction pulley 10 on the right side, crosses the front side of the right side pocket 13, and is reversely guided toward the rear of the case, ending at the take-up reel 4 located near the left end of the rear of the case. Take. In this storage state,
A predetermined amount of tape is wound around the supply reel 3. Although the tape guide 24 and the guide pins 25 and 26 are expected to be round pins that are integrated with the lower case 1b, they may be separate pins or freely rotatable rollers.

The supply reel 3 is rotatably supported by a swing arm 27 mounted horizontally on the bottom wall of the lower case 1b. With the spring 28 acting on the swinging arm 27,
The circumferential surface of the lower flange 3a of the supply reel 3 is urged to come into pressure contact with the rubber ring 23 of the friction pulley 10. A large number of serrated friction teeth are formed at small intervals on the circumferential surface of the lower flange 3a. During the eject mode in which cleaning is stopped by an auto-stop means 12 (described later) and the tape pull-out member L returns to the pocket 13, the supply reel 3
is rewinded and rotated by a friction pulley 10 to draw in and store the cleaning tape 2 pulled out of the case.

(3) Pilot roller mechanism The pilot roller mechanism 5 is designed to reduce the rotational resistance by reducing the wrapping angle of the cleaning tape 2 around the magnetic head H, and to limit the application range of the cleaning liquid to a certain width as described later. It is something.

Specifically, it has a first swinging arm 30 that supports the pilot roller 29, and a second swinging arm 31 that swingably supports the swinging arm 30. A pilot roller 29 is provided at the base end of the first swing arm 30, that is, at the connection point with the second swing arm 31.
The passive roller 32 for returning the
It is fixed so as to swing together with the swinging arm 30 of. The second swinging arm 31 is biased to swing by a spring 33 so that the driven roller 32 is always pressed against the friction pulley 10. Furthermore, a spring 34 is stretched between both swing arms 30 and 31 to swing and bias the first swing arm 30 to the standby position.

When the head cleaner is not in use, the first swing arm 30 and the pilot roller 29 are in the standby position shown in FIG. This pilot roller 29
As shown in FIG. 3, when the cleaning tape 2 is pulled out of the case by the tape pull-out member L, the tape 2 swings counterclockwise against the spring 34 due to the tension acting on the tape 2.
is guided to a position closer to the center of the pocket 13. As a result, the wrapping angle of the cleaning tape 2 around the magnetic head H becomes smaller, and the rotational resistance imparted to the magnetic head H becomes smaller.

The operation of returning the pilot roller 29 to its original position is performed by rewinding the friction pulley 10 in the eject mode, and the passive roller 32 that presses against the rubber ring 23 is driven in the opposite direction to the friction pulley 10. As a result, it returns to the standby position shown in FIG.

(4) Tape surface switching mechanism The cartridge case 1 has a liquid supply system that includes a liquid supply device 38 that supplies cleaning liquid to the cleaning tape 2 between the pilot roller 29 in the standby position and the guide pin 25 near the friction pulley 10. have the means. The liquid supply tool 38 is formed, for example, in the shape of a cylinder with a bottom, and a coating sheet with excellent lubricity is attached to the outer peripheral surface of the cylinder that comes into sliding contact with the tape 2, and the cleaning liquid is passed through a thin vertical slit formed in the sheet. A cleaner is used that allows a certain amount of cleaning liquid to be applied only to a narrow, predetermined area by oozing out the cleaning liquid.

When the pilot roller 29 moves toward the center of the pocket 13 during tape loading, the cleaning tape 2 is moved toward the liquid supply tool 38.
away from the surrounding surface. Therefore, the cleaning liquid is applied only to a certain range of the tape 2. The position of the liquid supply tool 38 is determined so that the application position contacts the head surface of the magnetic head H when tape loading is completed.

If cleaning is performed by a so-called wet method using only the cleaning tape 2 coated with a cleaning liquid, the rotational resistance of the magnetic head H becomes too large compared to a dry method. Cleaning liquid remains on the magnetic head after cleaning. The constituent fibers of the cleaning tape 2 adhere to the magnetic head together with the liquid, which has an adverse effect on the magnetic head H and the magnetic tape. In order to prevent this, there is a tape surface switching mechanism 6, which shifts the contact position of the cleaning tape 2 with the magnetic head H from the area where the cleaning liquid has adhered to the dry area where no liquid has adhered, and changes the position of the cleaning tape 2 to the head surface. Remove any remaining cleaning fluid or textile debris.

The tape surface switching mechanism 6 includes a swinging arm 39 horizontally swingably supported on the bottom wall of the lower case 1b, and a disc-shaped switching disk 40 rotatably supported near the swinging tip of the swinging arm 39. and the rubber ring 2 of the friction pulley 11 with the switching disk 40 on the left side.
3 and a spring 41 for pressing it into contact. As shown in FIG. 6, a guide boss 42 and a locking roller 43 are provided on the top surface of the switching disk 40 at two locations, one in the center and one near the periphery, so as to sandwich the cleaning tape 2 back and forth. . At the same time as tape loading is completed, the friction pulley 11 is driven clockwise by the reel drive shaft S, and at the same time the switching disc 40 is driven by the rubber shaft 2.
3, it is driven counterclockwise. Along with this, the hanging roller 43 also rotates together with the switching disk 40, so that the cleaning tape 2 is pulled while being hooked to the hanging roller 43.
Cleaning tape 2 for the amount of tension
The contact position with the magnetic head H is misaligned, and the tape 2
Cleaning will be carried out in dry areas.

After the switching disc 40 has rotated by a certain angle as shown in FIG. 3, the tension of the spring 41 overcomes the rotational force of the switching disc 40, and it does not rotate any further and is in a state of slipping against the rubber ring 23. become. For this purpose, the spring 41 is latched onto a pin 44 on the surface of the switching disc 40, so that the spring 41 is stretched and deformed when the switching disc 40 rotates. Almost at the same time as the drive of the friction pulley 11 is stopped, the switching disk 40 is returned to the clockwise rotation direction by the tension of the spring 41 and rotated back to its original position.

(5) Cleaning means In FIG. 3, a cleaning means 9 is provided for cleaning the capstan C and the pinch roller Q. This cleaning means 9
is a hexagonal column-shaped wiping pad 4 circumscribing the capstan C and the pinch roller Q, respectively.
6, 47, a holder 48 which is horizontally swingably supported on the bottom wall of the lower case 1b and holds the pads 46, 47; It consists of a spring 49. Pad 4 is attached to holder 48.
A holding frame 48a for inserting and fitting 6 and 47 is provided upright. Both pads 46 and 47 are made of felt, for example, and are attached to the holding frame 48a with the ridgelines of their peripheral surfaces circumscribing the capstan C and the pinch roller Q, respectively. Both pads 46, 47 can be replaced as necessary. 50 is an auxiliary cleaning pad circumscribing the capstan C.

(6) Winding reel The winding reel 4 is rotatably supported between the upper and lower cases 1a and 1b, and has ratchet pawls 5 on ratchet teeth 4b formed on the circumferential surface of the lower flange 4a.
1, the tape can be rotated only in the tape winding direction (counterclockwise direction). In FIG. 7, an operation window 52 is opened in the rear wall 1c of the cartridge case 1 near the take-up reel 4, and a part of the lower flange 4a of the take-up reel 4 is exposed outside the case through this window 52. Ok,
The reel 4 can now be rotated.

In the state shown in FIG. 2, the winding reel 4
When the cleaning tape 2 is rotated in the winding direction, the cleaning tape 2 is let out from the supply reel 3 and taken up on the take-up reel 4. Then, the phase position of the cleaning tape 2 shifts by the amount of winding, and a new tape surface hits the magnetic head H during tape loading. In other words, by rotating the winding reel 4 as necessary,
The magnetic head H can be cleaned with a clean tape surface, the cleaning tape 2 is prevented from being used for cleaning beyond its usage limit, and the magnetic head H is also prevented from being damaged. In order to minimize the winding of the cleaning tape 2 without wasting it, marks 53 for displaying the remaining amount, such as numbers, are printed at regular intervals on the lead tape portion of the cleaning tape 2, as shown in FIG. be. This display mark 53 can be visually recognized from outside the case through a viewing window 54 opened in the rear wall 1c of the cartridge case 1.

In FIG. 8, a tape stopper 55 is arranged on the inner side of the cleaning tape 2 at a position facing the viewing window 54. As shown in FIG. This stopper 55 is integrally formed with a stopper claw 56 that is swingably supported on the bottom wall of the lower case 1b, and a U-shaped spring 57 that biases the stopper claw 56 into contact with the cleaning tape 2 with a light contact pressure. consists of things. A usage limit display 59 is printed or formed in a molded pattern on the wall surface of the stopper claw 56 facing the viewing window 54. This tape stopper 55 prevents the cleaning tape 2 from being wound up any further when the renewal of the tape surface by the take-up reel 4 reaches its limit. For this purpose, a stopper hole 58 as shown in FIG. 8 is opened in the lead tape portion near the tape guide 24. When the stopper claw 56 falls into the stopper hole 58, even if the take-up reel 4 is rotated, the tape 2 on the side of the supply reel 3 from the stopper hole 58 will not be wound up. Even in this state, the cleaning tape 2 is wound around the supply reel 3 in an amount necessary for tape loading. That is, the tape stopper 55 prevents the take-up reel 4 from winding up the tape 2 at the limit position, and the tape length necessary for tape loading is set in the stopper hole 55.
By leaving it closer to the supply reel 3 side, damage to the tape pull-out member L, its drive mechanism, or the head cleaner can be prevented.

(7) Auto-stop means This invention is characterized by an auto-stop means 12 for making the cleaning time in the head cleaner constant.

The auto-stop means 12 includes a start detection means 60 for detecting the start of cleaning;
A time period for controlling the power supply so that a current is applied to the light source 61 after a certain period of time has passed in response to signals from the light source 61 that irradiates detection light to the optical sensor P for detecting the end of the tape provided on the player side and the start detection means 60. It consists of a setting means 62 and a power supply 63.

The start detection means 60 detects the switching disk 40.
A switch operating arm 64 is hooked to one end of a spring 41 that biases the switch, and this operating arm 64 turns on and off.
When the switching disk 40 is rotationally driven by the friction pulley 11 at the same time as tape loading is completed, the switch operating arm 64 receives the movement of the switching disk 40 via the spring 41. By turning on the micro switch 65, the start of cleaning is detected and a signal current (or drive current) is applied to the time setting means 62.

The time setting means 62 is a delay circuit or CR
It consists of an electric circuit such as a timer and is provided on the board 66. When a signal current is received from the start detection means 60, a driving current is applied to the light source 61 after a set time of, for example, 3 seconds has elapsed, and the light source 61 is activated.
to emit light. The light source 61 is composed of a light emitting body such as a light emitting diode or a small light bulb that uses electricity as an energy source. This light source 61 is fixed to the inner surface of the right side wall in the figure of the cartridge case 1 corresponding to the optical sensor P, and a light projection window 67 is opened in the side wall.
Detection light is emitted toward the outside of the case to activate the optical sensor P. The power supply 63 is connected to the board 6
It consists of two dry batteries 63a mounted on the top of the battery. In FIG. 2, reference numeral 70 is a battery cover that is attached to the upper case 1a of the cartridge case 1 so as to be openable and closable.

When the light source 61 is turned on by the operation of the time setting means 62, the state is the same as when the optical sensor P is activated and the tape end in the magnetic tape cartridge is detected, and the reel drive shaft S and magnetic head H are turned on. The drive is stopped immediately. Now the magnetic head H and cleaning tape 2
The relative sliding contact between them also stops, and cleaning is stopped. Therefore, it is possible to reliably stop cleaning after a certain period of time has elapsed from the start of cleaning, and cleaning can be performed properly at all times.

[Another example]

The start detection means 60 may be operated using the rotation of the capstan C or the pinch roller Q, or the movement of the cleaning tape 2 during tape loading, to detect the start of cleaning. In particular, it is advantageous in terms of timing for the switch 65 to utilize the movement in and out of the pinch roller Q during play.

When the time setting means 62 is formed by a flip-flop circuit as shown in FIG. 9, a switch 65a for detecting the movement of the cleaning tape 2 and a switch 65b for detecting that the cartridge case 1 is loaded into the player are provided. , the start of cleaning may be detected by sequentially operating both switches. In this case, switch 65b is
The on operation is performed using the opening/closing operation of 6 or the movement of the positioning pin or reel brake release pin on the player side entering the cartridge case 1. The switch 65a is turned on when it detects that the rotating member on the player side or the cleaning tape 2 moves during tape loading.

FIG. 10 shows another embodiment of the invention relating to friction pulleys 10,11. This prevents the friction pulleys 10 and 11 from floating when not in use, and prevents the cleaning tape 2 from sagging.
Specifically, a brake disk 71 disposed above the friction pulleys 10 and 11 is biased downward by a spring 72 to apply the brakes. A large number of engagement protrusions 73 are formed radially on the lower surface of the brake disc 71, and the protrusions 73 engage with radial ribs 74, 74 on the friction pulleys 10, 11 side when the head cleaner is not in use. When using the head cleaner, the engagement holes 10a and 1 of the friction pulleys 10 and 11 are
By pushing up the shaft 75 that enters into 1a with the reel drive shaft S, the engagement of the brake disc 71 is released and the friction pulleys 10 and 11 can be brought into a free rotating state.

The cleaning tape 2 can be changed to be pulled out from the central pocket 14 by a tape pull-out member L. In the embodiment, a VHS video head cleaner was described, but it is also anticipated that the present invention will be applied to a head cleaner for a Beta video deck or an audio deck in which the magnetic tape is pulled out of the cartridge case. .

[Brief explanation of the drawing]

1 to 8 show a first embodiment of the head cleaner according to the present invention, in which FIG. 1 is a schematic plan view, FIG. 2 is a cross-sectional plan view showing the internal structure when not in use, and FIG. The figure is a cross-sectional plan view during use, Figures 4, 5, 6, and 7 are cross-sectional views taken along lines -, -, -, and - in Figure 2, respectively, and Figure 8 is FIG. 3 is an exploded perspective view of section A in FIG. 2; FIG. 9 is an electrical circuit diagram showing another embodiment of the auto-stop means. FIG. 10 is a longitudinal cross-sectional view of the main parts of another embodiment of the friction pulley. DESCRIPTION OF SYMBOLS 1... Cartridge case, 2... Cleaning tape, 13... Tape loading pocket, 60... Start detection means, 61... Light source, 62
...Time setting means, L...Tape pull-out member,
H: Magnetic head, P: Optical sensor.

Claims (1)

[Claims] 1. The middle part of the cleaning tape 2 held in the cartridge case 1 is guided to the front end area of a tape loading pocket 13 recessed in the front of the case, and is passed through the pocket 13 to a tape pulling member on the player side. In the head cleaner in which the cleaning tape 2 pulled out at L is circumscribed by the magnetic head H on the player side, a light source 61 is arranged on the cartridge case 1 side in correspondence with the optical sensor P for detecting the end of the tape on the player side. ,
Start detection means 60 detects the start of cleaning by detecting the operation of the player or the head cleaner component during use, and a power supply that applies current to the light source 61 after a certain period of time has passed in response to a signal from the start detection means 60. A head cleaner characterized in that a time setting means 62 for controlling is provided on each cartridge case 1 side, and a light source 61 is turned on after a certain period of time has elapsed from the start of cleaning.