JPH0743828Y2 - Cleaning and erasing pieces for cassette tape - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to a cleaning and erasing piece for a cassette tape, and more particularly, a cleaning and erasing piece that can be easily attached to and detached from a cassette tape and can be used for multiple purposes such as cleaning and erasing. Regarding erased pieces.

[Conventional technology]

Conventionally, when cleaning or erasing an audio / image recording / reproducing device using a general cassette tape, a video tape or a cartridge tape, it is necessary to use a cleaning cassette tape or a cleaning liquid for the cleaning. Ordinarily, when erasing a sound recording / recording, it is common to delete the sound / image already recorded / recorded by using the sound / image recording / reproducing device in the sound recording / recording mode. Of course, a dedicated erasing device is commercially available for recording and erasing recordings.

[Problems to be solved by the invention]

By the way, in the above-mentioned conventional techniques, there is a problem that it takes time, cost, and labor for cleaning or erasing work. For example, when trying to clean the relevant part of a voice / image recording / playback machine that uses a cassette tape, that is, the recording / playback magnetic head, pinch roller, capstan, etc., the easiest and most convenient way is to clean the cleaning tape. This is a method in which the cleaning cassette tape is purchased and inserted in a recording / recording / reproducing machine, and the cleaning cassette tape is run one or two round trips in the recording / recording or reproducing mode for cleaning. Although this method is simple, it is not possible to obtain the expected cleaning effect, as can be seen by actually using it. Therefore, when you want to effectively clean the recording / playback magnetic head, pinch roller, capstan, etc., remove the cassette holder cover, put the cleaning liquid on the cotton swab, and manually and carefully. The recording / playback magnetic head must be cleaned so as not to scratch it.

Also, when trying to delete the voice / image that has already been recorded / recorded, record / play the image of the cassette tape that tries to delete the voice / image except when using a commercially available expensive delete-only machine. It is necessary to insert the tape into a predetermined position of the machine and run the tape in the recording / recording mode to erase it, but this process takes a very long time, and the cassette tape is put into the non-recording / recording state. At times, troublesome procedures such as reducing the volume to zero level are also required.

The present invention has been made in view of the above situation, and a cleaning and erasing piece for a cassette tape can be attached to the cassette tape side instead of the recording / recording / reproducing device side to easily and quickly clean the cassette tape. Is a cleaning tape for cassette tape that can be erased.
It is intended to provide eraser pieces.

The present invention also has a very small and simple structure,
It is an object to provide a cleaning and erasing piece for a cassette tape which can be manufactured at a very low cost.

[Means for solving problems]

In order to solve the above problems, the present invention comprises a housing accommodating a magnetic tape and a protective cover pivotally attached to the housing, and the housing is provided at a position on the side surface side. A side inner plate which is covered by the protective cover when the protective cover is closed and is exposed when the protective cover is opened, and a tape end detection opening is formed in the inner side plate. A cleaning and erasing piece for a cassette tape that is attached to a cassette tape, comprising a plate-shaped main body, an elastic support portion integrally extending above the main body, and an elastic support portion, and an elastic support portion on the elastic support portion. A first elastic member which is fixed and comprises a block-shaped member that comes into contact with the operation surface of the magnetic tape, and wherein the main body is hung vertically from immediately below the elastic support portion. And a second elastic piece extending horizontally from one lower end thereof and a guide piece obliquely extending from the other lower end thereof to the side to which the block-shaped member is fixed, The main body contacts the outer wall surface of the side inner plate, the first elastic piece contacts the inner wall surface of the end portion of the side inner plate, and the second elastic piece engages the edge portion of the tape end detection opening. The purpose of the present invention is to provide a cleaning and erasing piece for a cassette tape which is detachably clamped to the side inner plate of the housing in a state of being engaged with the housing.

The block-shaped member may be a cleaning pad made of felt or the like, which adsorbs and removes magnetic powder and dust adhering to the operation surface of the magnetic tape.

Further, the block-shaped member may be a permanent magnet.

Further, the elastic support portion has a fold-back at its upper end,
It is characterized in that a functional block is detachably inserted and supported between the first elastic piece and the first elastic piece.

[Action]

According to the present invention, the cassette tape is detachably clamped to the housing based on the above means. Therefore, when the cleaning pad is used as the functional block fixed to the elastic support, the inside of the housing is It can be used as a cleaning piece for a cassette tape that adsorbs and removes magnetic powder, dust, and dust adhering to the operation surface of a running removal tape, and when a permanent magnet is used as a functional block fixed to the elastic support part, the removal tape It can be used as an eraser for erasing recordings and recordings on the operation side of, and at the same time it is inserted in the cassette tape instead of in the recording and recording / reproducing device, so cleaning and erasing work can be done during fast-forwarding and rewinding. You can clean and erase the tape.

Further, the main body, the lateral width of the elastic support portion, and the dimensions of the first and second elastic pieces extending from the main body are adjusted to conform to the standard sizes of various cassette tapes.
By providing a fold for hooking the outer surface of the housing of the cassette tape on the upper end of the elastic piece, it can be used for various cassette tapes.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

1 and 2 show a cleaning and erasing piece used in a VHS® video cassette tape according to a first embodiment of the present invention. The cleaning and erasing piece is mainly composed of a plate-shaped main body 10, an elastic support portion 20 integrally extending above the main body 10 and capable of elastic force, and the elastic support portion.
It comprises a cleaning pad 30 as a block-like member fixed on 20. In addition, the main body 10 includes a first elastic piece 40 vertically extending from just below the elastic support portion 20, and a second elastic piece horizontally extending from below the main body 10 (lower right in FIG. 1). 50 and a guide piece 52 extending obliquely from the lower side of the main body 10 (lower left in FIG. 1) to the side to which the cleaning pad 30 is fixed.

In addition, a "V" -shaped foldback 22 is provided at the upper end of the elastic support portion 20 of the main body 10.

The cleaning pad 30 is mounted on the elastic support 20 while engaging with the flap 22 and supported between the flap 22 and the horizontal wall of the first elastic piece 40.

FIG. 2 shows a case where the cleaning erasing piece of the first embodiment is used for a VHS (registered trademark) video cassette tape,
In the figure, only the main part of the VHS (registered trademark) video cassette tape is shown in cross section from the rear side. As shown in FIGS. 4 and 5, the VHS (registered trademark) video cassette tape includes a protective cover 101 that is pivotally attached to the housing 100 and an inner cover inside the housing including the protective cover 101. Space 102 and this protective cover 101
The cleaning and erasing piece of the present invention is composed of VHS (registered trademark) as shown in FIG. 2 and FIG. On the inner side plate 103 of the inner space 102 inside the protective cover 101 of the video cassette tape,
The elastic support portion 20 and the cleaning pad 30 are on the upper side, the first elastic piece 40 is on the inner wall surface of the side inner plate 103, the main body 10 is on the outer wall surface of the inner side plate 103, and the second
Since the elastic pieces 50 are respectively brought into contact with the lower wall surfaces of the inner plate 103 on the same side surface, the elastic pieces 50 as a whole can be firmly attached to the inner plate 103 on the same side surface.

Normally, it is desirable that the cleaning and erasing piece of the present invention is, as shown in FIG. 2, sandwiched between the VHS (registered trademark) video cassette tape on the upper right side when viewed from the rear side. This is because the magnetic tape 70 normally runs in the direction of the arrow in the figure, so the recording (playback) reproducing magnetic head uses a magnetic tape.
This is because it is possible to remove the magnetic powder, dust, and dirt attached to the 70 before it reaches.

Now, the cleaning and erasing piece of the present invention is sandwiched by the side inner plate 103 of the VHS (registered trademark) video cassette tape, and the magnetic tape 70 is pulled from the cassette by the tension arm as shown in FIGS. 7 and 8. The magnetic tape 70 slidably contacts the cleaning pad 30 at a position where the magnetic tape 70 comes out toward the pin 302 of the 301.
30 is the elastic support 20 on the operation side of the magnetic tape 70.
The magnetic powder, dust, and dirt adhering to the operation surface of the magnetic tape 70 can be effectively removed because the magnetic tape 70 is pressed against the surface of the magnetic tape 70 with elasticity. The cleaning pad 30 is made of a felt pad or other similar member and is attached to the elastic support portion 20. When the cleaning pad 30 becomes dirty, the cleaning and erasing piece of the present invention is replaced with a new one. By doing so, tape cleaning can be continued.

Further, to explain the operation of the guide piece 52, when the VHS (registered trademark) video cassette tape is inserted in a predetermined position of the recording / playback device for recording or playback, the protective cover 101 is automatically rotated. And the magnetic tape 70 is exposed and the magnetic head 305 (7th
(See the figure), and when the recording or the reproduction is finished, the protective cover 101 is automatically rotated in the opposite direction to re-attach the cassette tape. Since the guide piece 52 extending obliquely from the side of the VHS (registered trademark) video cassette tape is closely attached to the outer wall surface of the inner side plate 103 of the VHS (registered trademark) video tape, the protective cover 101 is used for cleaning and erasing of the present invention. It is prevented that the cassette tape cannot be taken out due to being caught on one side.

The mounting and operation of the cleaning and erasing piece of the present invention will be described as follows.

As shown in FIGS. 9 (A), (B), and (C), the cut-raised first elastic piece 40 of the main body 10 is attached to the edge portion 140 of the side wall of the video cassette housing 100 with the cover 101 opened. Simultaneously with the fitting, another cut and raised second elastic piece 50 is fitted to the edge portion of the tape end detection hole 104. At this time, the erasing piece (or cleaning pad) 30 mounted on the main body 10 is arranged in the cassette near the notch 141 at the end where the tape 70 comes out. In this state, the erasing piece 30 is not in contact with the tape 70. Even when the deck is in the fast-forward mode, the erasing piece 40 does not come into contact with the tape 70. Tape 70 is tension arm 301 when the deck is in recording or playback mode.
It is pulled by the pin 302 and is pressed against the erasing piece 70 (see FIGS. 7 and 8).

If the tape 70 becomes loose or stretched,
The tension spring 303 automatically adjusts the tension of the tape to run the tape while keeping the tension within a certain range.
Therefore, the erasing piece 30 functions to clean or magnetically erase the tape while contacting the operation surface of the magnetic tape so as not to hinder the running of the tape.

The main body 10 is operated and removed as follows.

As shown in FIGS. 10 (A) and 10 (B), after opening the cover 101, the erasing piece 30 is pulled out to the outside of the cassette housing 100 with a finger, and the second elastic piece 50 is released from the hole 104. Then, the main body 10 can be easily taken out from the cassette housing 100.

Instead of the dirty cleaning and erasing strip removed, a new cleaning and erasing strip is attached to the video cassette housing 100 as above.

It is also possible to replace only the dirty cleaning pad 30. That is, the dirty cleaning pad 30 is pushed in its longitudinal direction. As a result, the dirty cleaning pad 30 comes out of the elastic support portion 20 and is removed.
A new cleaning pad is moved in its longitudinal direction, fitted between the folding back 22 and the elastic support portion 20, and mounted on the elastic support portion 20.

Since the cleaning pad 30 is inserted in the longitudinal direction thereof and is fitted between the folded-back portion 22 of the elastic support portion 20 and the horizontal wall of the first elastic piece 40, it is a magnetic tape that normally travels in the vertical direction (see FIG. It does not come off even by frictional action with (not shown).

Next, the structure when the cleaning and erasing piece of the present invention is used for erasing voice or image already recorded on the magnetic tape will be described with reference to FIGS. In FIG. 1, the cleaning pad 30
The object of erasing can be achieved by simply replacing the with a permanent magnet as a block-shaped member having substantially the same shape and volume. The attachment method may also be as shown in FIG. 2, and the permanent magnets attached to the elastic support portion 20 are regularly magnetically arranged on the operation surface of the magnetic tape 70 to reproduce voices or images. By randomly scraping out the magnetic particles, it is possible to erase the sound or image already recorded on the magnetic tape 70.

In FIG. 3, if a permanent magnet is fitted and supported in place of the cleaning pad between the folded back 22 of the elastic support portion 20 and the horizontal wall of the first elastic piece 40, the same as above.
The erase purpose can be easily achieved. Then, only when the old permanent magnet is replaced with a new permanent magnet when the erasing ability is attenuated, the effective erasing work can be continued.

FIG. 11 shows a cleaning and erasing strip for a compact cassette tape.

This cleaning and erasing piece is mainly composed of a flat plate-shaped main body 110 bent in a U shape, and the main body 110.
Elastic support 120 formed by cutting and raising the center of the bottom surface
And a cleaning pad (or permanent magnet) 130 attached on the elastic support 120. Further, the main body 110 includes a base 112 having a flat frame shape.
A stopper 114 vertically cut and raised from the facing inner edge of the elastic support portion 120, sandwiching arms 116, 116 standing upright from both side edges of the base 112, and the elastic support portion 120 vertically supported. The vertical portions 122 are provided, and the upper ends of the sandwiching arms 116, 116 are provided with folds 118, 118 that are folded inward.

FIG. 12 shows a state in which the cleaning and erasing pieces of FIG. 11 are fitted to a cassette tape for recording and reproducing, and this figure shows the cassette tape cover opened to expose the magnetic tape inside. The cross section is displayed near the bottom edge.
Referring to FIG. 13, the cleaning and erasing piece according to the present invention is constructed such that the cassette tape cover 105 is attached to the holding arm 1 from below.
16 and 116 are sandwiched on both sides, and the constricted portions of the cassette tape cover 105 are hooked by the folds 118 and 118 at the upper ends of the sandwiching arms 116 and 116. It is firmly clamped in position. The predetermined position when the cleaning and erasing piece of the present invention is sandwiched between the cassette tapes is the lower end surface of the cassette tape cover 105 having the opening and the magnetic tape exposed.
Although any of the three existing operation openings 106 having the same area can be used, this figure shows the cleaning and erasing piece of the present invention attached to the central operation opening 106 among them. , The magnetic tape 70 on the cleaning pad (or permanent magnet) 130.
Facing with sandwiching between them is the pressure pad 107 of the cassette tape. As described above, when the cleaning and erasing piece of the present invention is installed in any one of the three operating openings 106, the stopper 11 is used.
4 and the vertical portion 122 (see FIG. 12) engage and lock the operating opening 106 at both edges of the magnetic tape 70 in the traveling direction. Further, the erasing piece does not shift or come off, and at the same time, the cleaning pad (or the permanent magnet) 130 enables quick cleaning or erasing. It should be noted that, as described above, when the cleaning and erasing piece of the present invention is attached to the central operating opening 106, it can be used only during fast forward or rewind, and the recording / reproducing magnetic head can be used. 305
Another operation opening 106 must be used when recording or playing (see FIG. 7) where it abuts the magnetic tape 70.

[Effect] The present invention, as can be seen from the above-described embodiments, was devised for the VHS (registered trademark) video cassette tape and the most popular recording / playback cassette tape.
As is well known, other endless type cartridge tapes (also known as 8 tigers), endless type recording / reproducing cassette tapes, Beta (registered trademark) video cassette tapes, 8 mm video cassette tapes, and micro cassette tapes are all available. Since the uniform size is produced by each company according to the unified standard, the size of the main body of the cleaning and erasing piece, the elastic support portion, the cleaning pad (or permanent magnet), etc. disclosed by the present invention is the cassette tape of each model. It can be used with any of these cassette tapes provided that it meets the standards. Therefore, the cleaning and erasing piece of the present invention can be used in a very wide range.

In addition, the present invention divides the operation surface of the magnetic tape into several tracks, and for recording and image recording for each track, a permanent magnet fixed to the elastic support is provided for each track. It is also possible to erase only the recording of one cassette tape, or to erase only the recording, by arranging the magnetic tape and non-magnetic one separately.

Furthermore, the present invention is not for a recording / playback device, but for
Since it can be easily attached to and detached from the cassette tape, the magnetic tape can be cleaned before magnetic powder or dust adheres to the magnetic head, pinch roller, etc., and at the same time, the present invention is attached to the cassette tape. As a result, cleaning or erasing can be performed even during fast-forwarding or rewinding, so that extremely comfortable cleaning or erasing can be performed.

Furthermore, the cleaning and erasing piece of the present invention can be manufactured at a very low cost because it can be easily mass-produced by punching by press or thermal molding of ultra-thin metal or similar plastic having high elasticity. is there.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment according to the present invention, FIG. 2 is a sectional view of a main part when it is attached to a VHS (registered trademark) video cassette tape, and FIG. 3 is a cassette of FIG. FIG. 4 is a cross-sectional view of the cleaning and erasing piece for tape, FIG. 4 is a view of the VHS (registered trademark) video cassette seen from the back side, and FIG. 5 is a view showing the VHS (registered trademark) video cassette with a protective cover opened, FIG. 6 is a view showing a protective cover opened with a cleaning pad attached, FIG. 7 is a view showing a tape path during recording / playback, and FIG. 8 is an exit portion from a tape cassette during recording / playback. FIG. 9 is a view showing a state in which a cleaning pad is slidably contacted, FIG. 9 is a view for explaining attachment of the main body, FIG. 10 is a view showing removal of the main body, and FIG. 11 is a view showing cleaning pieces and erasing pieces for a compact cassette tape Cut out part The perspective view shown in FIG.
It is a principal part sectional view when this is inserted and attached to the compact cassette tape for recording and reproduction. 10,110 …… Main body, 20,120 …… Resilient support, 30,130 ……
Cleaning pad (permanent magnet), 40 ... 1st elastic piece,
40 …… Second elastic piece, 60 …… Guide piece, 114 …… Stopper, 116 …… Clamping arm, 118 …… Folding, 122 …… Vertical section, 1
01 …… Protective cover, 104 …… Tape end undetected hole, 140 ……
Edge, 141 ... Notch.

Claims (4)

[Scope of utility model registration request] 1. A housing comprising a magnetic tape and a protective cover rotatably pivotally mounted on the housing, wherein the housing is located at a side of the housing when the protective cover is closed. An inner side plate that is covered by the protective cover and is exposed when the protective cover is opened;
A cassette tape cleaning and erasing piece that is attached to a cassette tape having a structure in which a tape end detection opening is formed in the side inner plate, and is a plate-shaped body and integrally extends above the body. The elastic support part is provided and has a block-like member fixed to the elastic support part and abutting on the operation surface of the magnetic tape, and the main body is provided with the elastic support part. First elastic piece vertically extending from just below the portion, a second elastic piece extending horizontally from one lower end thereof, and diagonally extending from the other lower end thereof to the side to which the block-shaped member is fixed. A guide piece that is provided, wherein the main body contacts the outer wall surface of the side surface inner plate, and the first elastic piece contacts the inner wall surface of the end portion of the side surface inner plate, The elastic piece is In engagement with the edge of the detection end opening, configured with the cassette tape for cleaning and erasing piece is clamped removably on the side surface in the plate of the housing. 2. The utility model registration claim characterized in that the block-shaped member is a cleaning pad made of felt or the like, and is a cleaning pad for adsorbing and removing magnetic powder and dust adhering to the operation surface of the magnetic tape. Range first
A cleaning and erasing piece for a cassette tape according to the item. 3. The cleaning and erasing piece for a cassette tape according to claim 1, wherein the block-shaped member is a permanent magnet. 4. The utility model registration, characterized in that the elastic support portion is provided with a fold-back at its upper end so that a block-shaped member can be detachably inserted and supported between the elastic support portion and the first elastic piece. A cassette tape cleaning and erasing piece according to claim 1.