JPH1139620A - Cleaning cassette for magnetic recording/reproducing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To evade cleaning operation impossible due to twist-turn, etc., of a cleaning tape by providing a control guide controlling the cleaning tape in the vicinity of an outer periphery of a tape reel, and on the position prolonging from an outer peripheral prescribed position to the vicinity of an arrangement side surface of a tape exposure window. SOLUTION: The cleaning tape 3 housed in a cassette vessel 1 is wound around the tape reel 21 without disturbance in the state controlled by control projection pieces 51a, 51b. The cleaning tape 3 wound around the tape reel 21 is guided to a side surface 114 side by a guide projection piece 51c to be prolonged to the tape exposure window 100 through a guide pin 41 and a guide roller 42. When the cleaning operation is started, the cleaning tape 3 is wound around by the tape reel 22 to be traveled, and a tape surface cleans dust stuck onto a magnetic head surface of a tape recorder through the tape exposure window 100.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning cassette for a magnetic recording / reproducing apparatus for cleaning a magnetic head of a magnetic recording / reproducing apparatus for recording / reproducing information on a band-shaped magnetic recording / reproducing tape.

[0002]

2. Description of the Related Art A conventional cleaning cassette for a magnetic recording / reproducing apparatus is shown in FIG. 5, and FIG. 5 shows an external perspective view of the conventional cleaning cassette for a magnetic recording / reproducing apparatus with an upper cover opened. The figure is shown.

In FIG. 1, a conventional cleaning cassette for a magnetic recording / reproducing apparatus includes a cassette container 1 formed by combining upper and lower lids 11 and 12 divided into upper and lower parts, and a lower lid of the cassette container 1. The cleaning tape 3 is wound around two tape reels 21 and 22 that are rotatably supported on the tape 12 and has a tape-shaped surface coated with a cleaning agent. The cleaning tape 3 has a configuration in which the length is shorter than the magnetic tape of the cassette tape and the flexibility thereof is small.

[0004] When the cleaning cassette for a magnetic recording / reproducing apparatus thus constructed is mounted on a cassette tape recorder and a reproducing operation is performed, the cleaning tape 3 slides on the magnetic head of the cassette tape recorder, and is placed on the magnetic head. Clean the attached dirt.

[0005]

Since the conventional cleaning cassette for a magnetic recording / reproducing apparatus is constructed as described above, the length of the cleaning tape 3 is short, and a cleaning agent is applied to the surface of the cleaning tape. Therefore, the flexibility of the cleaning tape 3 itself deteriorates, and the winding of the cleaning tape 3 from the tape reel 21 (or 22) becomes loose when not in use. When the cleaning tape 3 wound as described above becomes loose, the cleaning tape 3 is bent and entangled in the cassette container 1, and the tape is exposed from the tape exposure window 100 of the cassette container 1 for a long time. There is a problem that it becomes impossible.

An object of the present invention is to provide a cleaning cassette for a magnetic recording / reproducing apparatus which can prevent a cleaning operation from being disabled due to a bending of a cleaning tape or the like.

[0007]

According to the present invention, there is provided a cleaning cassette for a magnetic recording / reproducing apparatus, wherein a cleaning tape for cleaning a magnetic head of the magnetic recording / reproducing apparatus is wound around a tape reel and housed in a cassette container. In the cleaning cassette for the magnetic recording / reproducing apparatus to be formed, a regulating guide for regulating the cleaning tape is provided near the outer periphery of the tape reel and at a position extending from a predetermined position around the outer periphery to near the side surface of the tape exposure window. It is to be arranged. As described above, in the present invention, the regulation guide for regulating the cleaning tape is provided in the cassette container so as to extend from the vicinity of the outer periphery of the tape reel and a predetermined position of the outer periphery to the vicinity of the side surface of the tape exposure window. So that the cleaning tape does not loosen in the cassette container, and it does not bend or stick.
It is possible to reliably prevent the cleaning operation from being disabled.

Further, in the cleaning cassette for a magnetic recording / reproducing apparatus according to the present invention, a regulating guide is formed by bending a smooth sheet member as required, and corresponds to the tape reel in a plane portion of the smooth sheet member. At the position, an insertion hole through which a drive shaft for driving the tape reel is inserted is formed, and the regulation guide is formed to be bent, and a smooth sheet body having the insertion hole is mounted in the cassette container. Is what you do. As described above, in the present invention, a part of the smooth sheet body is bent to form an upright piece, and the upright piece forms a regulating guide, and an insertion hole for inserting a drive shaft into a flat portion of the smooth sheet body. Since the flat sheet body is mounted in the cassette container,
The regulation guide can be formed easily and reliably.

Further, the cleaning cassette for a magnetic recording / reproducing apparatus according to the present invention is such that a smooth sheet body is swingably mounted in a cassette container as required. As described above, in the present invention, the smooth sheet body is swingably mounted in the cassette container, so that the cleaning tape can run smoothly during the cleaning operation, and a more reliable cleaning operation can be performed. .

Further, in the cleaning cassette for a magnetic recording / reproducing apparatus according to the present invention, a locking piece for temporarily fixing the smooth sheet body is provided in the cassette container as required. Thus, in the present invention, by providing the locking piece for temporarily fixing the smooth sheet body in the cassette container,
During the assembling operation of the present cleaning cassette tape, the smooth sheet body can be accurately and reliably mounted in the cassette container, and the workability at the time of assembling is improved.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

(First Embodiment of the Invention) Hereinafter, a cleaning cassette for a magnetic recording / reproducing apparatus according to a first embodiment of the invention will be described with reference to FIG. FIG. 1 is a perspective view showing the outer appearance of the upper cover of the cleaning cassette for a magnetic recording / reproducing apparatus according to the present embodiment in an open state.

In FIG. 1, a cleaning cassette for a magnetic recording / reproducing apparatus according to the present embodiment includes an upper lid 1 and a lower lid 1.
The cassette container 1 formed in a thin box shape by combining the first and second lids 1 and 12 with the drive holes 111 of the upper and lower lids 11 and 12.
Tape reels 21 and 22 arranged at positions corresponding to 112, 121 and 122, and tape reels 21 and 22
Cleaning tape 3 wound around the lower lid 1
1, the tape reel 2
A regulating guide 5 for preventing disturbance of the cleaning tape 3 wound around the first and second cleaning tapes 22 is provided.

The lower lid 11 is formed of a substantially rectangular casing, and two driving holes 111 and 112 are formed in the bottom of the casing, and a long hole is provided between the driving holes 111 and 112. A long window 113 in which a transparent plate is mounted is provided in the opening area of the shape. The upper and lower lids 11 and 12
Is a configuration in which the tape exposure window 100 is formed by notching a plurality of portions of each side surface 114, 124. In addition, the upper and lower lids 11 and 12 have side surfaces 114 and 12 respectively.
In this configuration, a tape pad 46 and an electromagnetic shield part 45 are provided so as to face the tape exposure window 100 formed at the center of the tape 4.

The cleaning tape 3 is formed to be much shorter than a magnetic tape of a cassette tape, and is formed by applying a cleaning solvent to the surface thereof. Since the cleaning tape 3 is coated with the cleaning solvent, it has a characteristic that it is harder and less flexible than the magnetic tape.

The restricting guide 5 includes restricting projections 51a, 51b, 52a, 52b disposed so as to substantially surround the drive holes 111, 112 on the inner surface of the lower lid 11.
And guide projections 51c, 52c extending from the side end portions of the restriction projections 51b, 52b toward the vicinity of the end of the side surface 114 on which the tape exposure window 100 is disposed. is there. The regulating protrusions 51a and 51b, 52a
52b is a thin plate bent in a substantially rectangular shape,
It is formed so as to protrude from the inner side surface of the. The guide projection 51c,
52 c is formed by projecting a substantially straight plate-like thin plate from the inner surface of the lower lid 11.

The cleaning operation of the cleaning cassette for a magnetic recording / reproducing apparatus according to the present embodiment based on the above configuration will be described. First, at the time of storage before the cleaning operation, the cleaning tape 3 stored in the cassette container 1 is wound around the tape reel 21 without being disturbed by the restriction protrusions 51a and 51b. Further, the cleaning tape 3 wound around the tape reel 21 has a side surface 1 by the guide projection piece 51c.
14 to guide pin 41 and guide roller 4
2 to the tape exposure window 100.

The cleaning tape 3 extending to the tape exposure window 100 is guided to the other tape reel 22 side via a guide roller 44 and a guide pin 43, and further guided by a guide projection 52c. 2
The other end is locked to 2. The other end of the cleaning tape 3 wound around the tape reel 22 is
The winding state is maintained without being disturbed by being regulated by a and 52b.

When the cleaning operation is started from the stored state, the cleaning tape 3 is wound by the tape reel 22. The surface of the cleaning tape 3 which is wound and travels is cleaned of dirt adhering to the surface of a magnetic head (not shown) of the tape recorder via the tape exposure window 100. During this cleaning, the cleaning tape 3 is pressed outward from the back surface of the cleaning tape 3 by the tape pad 46, so that the sliding contact with the surface of the magnetic head is ensured and the cleaning action is improved.

The cleaning tape 3 wound on the tape reel 22 is prevented from being distorted in the cassette container 1 by restricting loosening of the cleaning tape 3 from the tape reel 22 by the regulating protrusions 52a and 52b. At the time of the next cleaning operation, the cleaning tape is wound on the tape reel 22 side. The cleaning operation is performed in the same manner as the above-described cleaning operation.
1b and the guide projection 51c.

(Second Embodiment of the Present Invention) FIG. 2 is an exploded perspective view of a cleaning cassette for a magnetic recording / reproducing apparatus according to a second embodiment. In FIG. 1, the cleaning cassette for a magnetic recording / reproducing apparatus according to the present embodiment is the same as that of FIG.
The cassette container 1, the tape reels 21 and 22, and the cleaning tape 3 are commonly provided in the same manner as the magnetic recording / reproducing apparatus cleaning cassette described in (1).
In this configuration, two sheet-like regulating guides 6 and 7 are mounted in the cassette container 1.

The regulating guide 6 comprises a guide sheet 60 made of a smooth sheet. The guide holes 60 of the guide sheet 60 in the lower lid 11 of the cassette container 1 are formed.
Drive shaft insertion holes 64, 65 are formed at positions corresponding to 12, and the edges of the guide sheet 60 in the outer periphery of the drive shaft insertion holes 64 are bent to restrict the control protrusions 61, 62 and the guide protrusions. 63 is formed. The regulation guide 7
Is composed of a guide sheet 70 made of the above-mentioned smooth sheet body. Drive shaft insertion holes 74 and 75 are formed in the guide sheet 70, and regulating protrusions 71 and 72 and a guide protrusion 7 are formed.
Reference numeral 3 denotes a configuration formed by bending.

Next, an assembling operation and a cleaning operation of the cleaning cassette for the magnetic recording / reproducing apparatus according to the present embodiment based on the above configuration will be described. First, regarding the assembling operation, the guide rollers 42, 44 are inserted through the support pins 42a, 44a on the lower lid 11 of the cassette container 1 and are rotatably supported, and the electromagnetic shield 45 and the tape pad 46 are mounted. . The regulating guide 6 is mounted inside the lower lid 11 in a superposed manner in the direction of arrow A in FIG. 2, and the drive shaft insertion holes 64 and 65 of the regulating guide 6 are aligned with the driving holes 111 and 112. Set up. Then, the tape reels 21 and 22 to which the respective ends of the cleaning tape 3 are fixed in advance are fitted to the drive holes 111 and 112 of the lower lid body 11 on which the regulation guide 6 is mounted, and are mounted. The middle of 3 is disposed at a predetermined position of the tape exposure window 100 of the lower lid 11.

Further, on the upper lid 12 of the cassette container 1, similarly to the lower lid 11, the regulating guide 7 is arranged so that the drive shaft insertion holes 74 and 75 are aligned with the drive holes 121 and 122 in FIG. In the direction of arrow B. The upper lid 12 on which the regulation guide 7 is mounted is attached to the lower lid 11
The fixing screws (not shown) are screwed from the lower surface of the lower lid 11 through the screw holes 11a, 11b, 11c, 11d.
Screw holes 12a, 12b, 12c, and 12d.

The cleaning operation of the cleaning cassette for the magnetic recording / reproducing apparatus assembled in this manner is to clean the magnetic head of the tape recorder in the same manner as in the embodiment shown in FIG. Since the cleaning tape 3 is regulated up and down by the guide sheets 60 and 70 made of smooth sheets of the regulation guides 6 and 7, the tape running of the cleaning tape 3 can be smoothed.

When the cleaning tape 3 running smoothly in this manner is wound on the tape reel 21 (or 22), it is guided by the guide projection 63 (or 73) and wound on the tape reel 21 (or 22). After being removed, the protrusions 61, 62 (or 71, 72) are restricted to prevent disturbance or sticking in the cassette container 1, and the cleaning operation can be performed reliably and smoothly.

(Third Embodiment of the Invention) FIG. 3 is a plan view of a right half of a cleaning cassette for a magnetic recording / reproducing apparatus according to a third embodiment, and FIG. 4A is FIG. 3B is a plan view of the guide sheet before bending in the cleaning cassette for a magnetic recording / reproducing device, and FIG. 3B is a plan view of the guide sheet after bending in the cleaning cassette for a magnetic recording / reproducing device shown in FIG.

In each of the figures, the cleaning cassette for the magnetic recording / reproducing apparatus according to the present embodiment is similar to the cleaning cassette for the magnetic recording / reproducing apparatus shown in FIG. 3 and the regulating guides 6 and 7 are provided in common, and the shapes of the regulating guides 6 and 7 are different. The regulation guide 6 (or 7) is composed of a guide sheet 60 (or 70) made of a smooth sheet body.
At 0 (or 70), the drive shaft insertion holes 64 and 65 (or 74
75) is drilled, and the regulating projections 61 and 62 (or 71 and 72) and the guiding projections 63 and 73 are formed by bending,
A temporary fixing portion 66, 67 (or 76, 77) is cut out between the drive shaft insertion holes 64, 65 (or 74, 75).

The temporary fixing portions 66 and 67 (or 76 and 7)
7) has locking recesses 66a, 67a (or 7
6a, 77a) are formed, and the locking recesses 66a, 67
a (or 76a, 77a), locking pieces 11e, 1d provided inside the lids 11, 12 above and below the cassette container 1.
1f (or 12e, 12f), and the regulation guide 6 (or 7) is temporarily fixed in the upper and lower lids 11, 12 during the assembly work.

Next, the manufacturing operation and the cleaning operation of the cleaning cassette for the magnetic recording / reproducing apparatus according to the present embodiment based on the above configuration will be described. First, on the premise of this manufacturing operation, as shown in FIG.
4.65, 74.75 and locking recesses 66a, 67a, 7
The guide sheets 60 and 70 having 6a and 77a are formed. The broken portions of the guide sheets 60 and 70 formed by die-cutting are bent at the dashed lines shown in FIG. 3A, and the regulating protrusions 61, 62, 71 and 72 and the guide protrusions as shown in FIG. 6
3, 73 are formed.

The formed guide sheets 60 and 70 are assembled in the same manner as in the embodiment shown in FIG. In this assembling operation, the locking recesses 66a and 67a and 76a and 77a are respectively attached to the guide sheets 60 and 70 by the upper and lower lids 1 respectively.
Locking projections 11e and 11f drilled inside 1, 12;
Engage with 12e and 12f. Each of the locking recesses 66a
The guide sheets 60, 70 can be temporarily fixed to the upper and lower lids 11, 12 by the engagement by the 67a, 76a, 77a, and the assembling work can be performed more smoothly and reliably. The cleaning cassette for the magnetic recording / reproducing apparatus thus assembled can perform a cleaning operation in the same manner as the embodiment shown in FIG.

In the above embodiment, the guide sheets 60 and 70 are housed and fixed in the upper and lower lids 11 and 12, respectively.
It is also possible to adopt a configuration in which it is swingably mounted in the lower lids 11 and 12. The swingable guide sheets 60 and 7
No. 0, specifically, the drive shaft insertion holes 64, 65, 74
・ 75 drive holes 111.1 of upper and lower lids 11 and 12
It can also be configured by forming it larger than the opening hole diameter of 12, 121, 122. With such a swingable configuration, the guide sheets 60, 70 can be moved with the running of the cleaning tape 3 during the cleaning operation.
Swings, and the sliding resistance of the cleaning tape 3 is minimized, so that the cleaning operation can be performed smoothly and reliably.

In the above embodiments, the cleaning of the magnetic head of the cassette tape recorder for reproducing the cassette tape has been described. However, a band-shaped magnetic recording / reproducing tape other than the cassette tape, for example, a VHS video tape, 8
It can also be configured as a cleaning tape device for cleaning the magnetic head of a magnetic recording / reproducing device for a millimeter video tape or the like.

[0033]

As described above, according to the present invention, the regulation guide for regulating the cleaning tape in the cassette container is extended from the vicinity of the outer periphery of the tape reel and a predetermined position of the outer periphery to the vicinity of the side surface of the tape exposure window. Since the cleaning tape is disposed in such a manner, the cleaning tape is not loosened in the cassette container, and the cleaning tape does not bend or cling, so that the cleaning operation can be reliably prevented from being disabled. Further, in the present invention, a part of the smooth sheet body is bent to form an upright piece, and the upright piece forms a regulation guide, and an insertion hole through which a drive shaft is inserted into a flat portion of the smooth sheet body. Since this smooth sheet body is mounted in the cassette container,
This has the effect that the regulation guide can be formed easily and reliably. Further, in the present invention, since the smooth sheet member is swingably mounted in the cassette container, the cleaning tape can be smoothly moved during the cleaning operation, and a more reliable cleaning operation can be performed. Has an effect. Furthermore, in the present invention, by providing the locking piece for temporarily fixing the smooth sheet body in the cassette container, the smooth sheet body can be accurately and reliably mounted in the cassette container during the assembling operation of the cleaning cassette tape. This has the effect of improving workability during assembly.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a cleaning cassette for a magnetic recording / reproducing apparatus according to a first embodiment of the present invention with an upper cover opened.

FIG. 2 is an exploded perspective view of a cleaning cassette for a magnetic recording / reproducing apparatus according to a second embodiment of the present invention.

FIG. 3 is a plan view in which a right half of a cleaning cassette for a magnetic recording / reproducing apparatus according to a third embodiment of the present invention is cut off.

FIG. 4A is a plan view of a guide sheet before bending in a cleaning cassette for a magnetic recording / reproducing apparatus shown in FIG. 3; FIG. 4B is a plan view of the guide sheet after bending in the cleaning cassette for the magnetic recording / reproducing apparatus shown in FIG. 3.

FIG. 5 is an external perspective view showing a state in which an upper lid of a conventional cleaning cassette for a magnetic recording / reproducing apparatus is opened.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cassette container 3 Cleaning tape 5, 6, 7 Regulation guide 11 Lower lid 11a, 11b, 11c, 11d, 12a, 12b, 1
2c, 12d Screw holes 11e, 11f, 12e, 12f Locking piece 12 Upper lid 21, 22 Tape reel 41, 43 Guide pin 42, 44 Guide roller 42a, 44a Support pin 45 Magnetic shield part 46 Tape pad 51a, 52b, 52a , 52b, 61, 62, 71,
72 regulating protruding pieces 51c, 52c, 63, 73 guide protruding pieces 60, 70 guide sheets 64, 65, 74, 75 drive shaft insertion holes 66, 67, 76, 77 temporary fixing portions 66a, 67a, 76a, 77a temporary fixing concave portions 100 Tape exposure window 111, 112, 121, 122 Drive hole 113 Long window 114, 124 Side view

Claims (4)

[Claims] 1. A cleaning cassette for a magnetic recording / reproducing apparatus, wherein a cleaning tape for cleaning a magnetic head of a magnetic recording / reproducing apparatus is wound around a tape reel and housed in a cassette container. A cleaning cassette for a magnetic recording / reproducing apparatus, wherein a regulation guide for regulating the cleaning tape is provided at a position extending from a predetermined position in the vicinity of the periphery and from a predetermined position in the outer periphery to a position near the side surface of the tape exposure window. 2. The cleaning cassette for a magnetic recording / reproducing device according to claim 1, wherein the regulating guide is formed by bending a smooth sheet body, and corresponds to the tape reel in a plane portion of the smooth sheet body. At the position, an insertion hole for inserting a drive shaft for driving the tape reel is formed, and the regulating guide is formed to be bent, and a smooth sheet body having the insertion hole is mounted in the cassette container. A cleaning cassette for a magnetic recording / reproducing apparatus. 3. The cleaning cassette for a magnetic recording / reproducing device according to claim 2, wherein the smooth sheet body is swingably mounted in a cassette container. 4. The magnetic recording / reproducing apparatus cleaning cassette according to claim 2, wherein a locking piece for temporarily fixing the smooth sheet body is provided in a cassette container. Cleaning cassette for playback device. [0001]