JPH0255842B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a head cleaner of a type in which a built-in cleaning tape is pulled out from the front of the case toward the deck when loaded onto a deck.

[Conventional technology]

Figure 4 shows a conventional example (Utility Model Application Publication No. 1983-33207) that was published at the time of filing of the present invention (this means that it was publicly known on the original filing date, that is, June 20, 1985). do not).

To explain based on FIG. 4, the head cleaner of the present invention includes a pair of left and right reels 3a and 3b on which the cleaning tape 2 is wound inside the main body case 1, and left and right ends on the front side of the main body case 1. The main body case 1 has openings 4a and 4b for leading out the cleaning tape 2 to the front of the case.
Pocket 5 for tape loading between 4b
a, 5b are arranged side by side and recessed, and the cleaning tape 2 is placed in both pockets 5a, 5.
The tape guide member 8 is disposed between the pockets 5a and 5b on the front surface of the main body case 1 so as to be located in front of the cleaning tape 2. It can be said that this is disclosed in the conventional example. Additionally, there is a bypass path through which the cleaning tape 2 runs between the pockets 5a and 5b on the inner front side of the main body case 1 via two tape guide members 8, 8.

According to this conventional example, when the cleaning tape 2 is loaded at the front of the case,
Unlike generally known head cleaners, the tape 2 is not wrapped around the head cylinder 7 on the deck side more than halfway around. The tape 2 contacts the head cylinder 7 tangentially. Therefore, even when a wet cleaning method is adopted in which cleaning liquid is applied to the tape 2 in order to improve cleaning performance, the sliding resistance of the tape 2 to the head cylinder 7 does not become excessive and the advantage is that the magnetic head is not damaged. have

[Problem that the invention seeks to solve]

However, what should be noted here is head cylinder 7.
This is the point where the axis of the axis is inclined. Therefore, in the conventional example, the cleaning tape 2 is
There is a risk that the entire surface of the head cylinder 7 will not come into uniform contact with the head cylinder 7, resulting in uneven contact, resulting in poor cleaning. This also causes the tape 2 to move up and down significantly. Specifically, this is a phenomenon in which only one of the upper and lower tape edges of the tape 2 comes into contact with the head cylinder 7. In particular, in a configuration in which the tape 2 is brought into contact with the head cylinder 7 in a tangential state, poor contact becomes more noticeable.

The present invention has been proposed to solve such problems.

A basic object of the present invention is to provide a head cleaner that can reduce the sliding resistance of a cleaning tape to a head cylinder as much as possible, and which does not pose any problem when wet cleaning methods are employed.

In addition, the main object of the present invention is to provide a head cleaner with excellent cleaning performance, in which the cleaning tape reliably contacts the entire surface of the head cylinder.

In addition, the purpose of the present invention in concrete implementation is to:
To obtain a head cleaner that has a simple structure and can be manufactured at low cost.

[Means for solving problems]

As already mentioned, the present invention is a reel-to-reel type head cleaner, in which a tape is used to guide the cleaning tape 2 between the front pockets 5a and 5b of the main body case 1 so that it contacts the head cylinder 7 in a tangential manner. It has a guide member 8, and is characterized in that the effective tape guide surface 10 of the tape guide member 8 is inclined to correspond to the inclination of the head cylinder 7.

More preferably, in a specific implementation, the tape guide member 8 is arranged with a tape running gap g provided outside the original tape guide surface 1a set on the front end surface of the main body case 1 between the pockets 5a and 5b. .

〔Effect of the invention〕

According to the present invention having the above configuration, since the effective tape guide surface 10 of the tape guide member 8 is inclined in correspondence with the head cylinder 7 on the deck side, the guide member 8 guides the cleaning tape 2 toward the head cylinder 7. Although the head cylinder 7 is guided so as to contact the cylinder 7 tangentially,
The tape 2 reliably contacts the entire surface in the width direction, and good cleaning performance can be ensured.

Main body case 1 between both pockets 5a and 5b
According to a preferred embodiment of the present invention, in which the tape guide member 8 is arranged with a tape running gap g provided outside the original tape guide surface 1a set on the front end surface of the main body case 1, a bypass path is provided in the main body case 1. Unlike the conventional example, there is no need to make any special shape changes to the main body case 1 side, and the tape guide member 8 can be assembled to the main body case 1 afterward, so the assembly work is easy, and the structure is simple and can be implemented at low cost. can.

〔Example〕

1 to 3 show an embodiment of the head cleaner according to the present invention, which can be loaded into a VHS video deck.

In FIG. 1, the basic configuration is a pair of left and right reels 3 on which a cleaning tape 2 is wound inside a main body case 1 formed to have substantially the same shape and dimensions as a cassette case containing a real magnetic tape.
a, 3b are rotatably housed, and the main body case 1 has openings 4a, 4b for leading out the tape at the left and right ends of the front surface, and a pocket for loading the tape between these openings 4a, 4b. 5a and 5b are recessed side by side side by side. cleaning tape 2
is led out from one supply reel 3a to the front side of the case through the openings 4a and 4b and taken up on the other take-up reel 3b, in a so-called reel-to-reel system.

When such a head cleaner is loaded onto a deck,
The loading posts 6, 6 on the deck side enter the pockets 5a, 5b inside the cleaning tape 2, and the tape 2 is pulled out to the front of the case and wound around the head cylinder 7.

In the above basic configuration, the built-in tape is just the cleaning tape 2, and its substance is no different from a real tape cassette containing a magnetic tape.

Main body case 1 between both pockets 5a and 5b
The front end surface has an original tape guide surface 1a. Here, the original tape guide surface 1a means the part that becomes the magnetic tape guide surface in a real tape cassette. This tape guide surface 1a is vertically recessed as shown in FIG.

In such a head cleaner, in the present invention, a tape guide member 8 is arranged on the tape guide surface 1a to guide the cleaning tape 2 so that it comes into tangential contact with the head cylinder 7 on the deck side.

This tape guide member 8, which may be made of metal or plastic, is a separate member from the main body case 1 and is later attached to the tape guide surface 1a.

The tape guide member 8 shown in the figure is formed in a U-shape, and has a tape holding portion 8a and leg portions 8b, 8b extending rearward from both upper and lower ends of the tape holding portion 8a. It has a retaining claw 8c. A pair of upper and lower holes 9, 9 are provided in two places on the left and right sides of the tape guide surface 1a, and the legs 8b, 8b of the guide member 8 are inserted into the upper and lower holes 9, 9 from the front using the elasticity of the check claw 8c. By press-fitting the guide member 8 to the tape guide surface 1a, the guide member 8 is attached to the tape guide surface 1a in a manner that prevents it from coming off. Thus, as shown in FIG. 3, the cleaning tape 2 passes through the gap g between the tape pressing portion 8a of the guide member 8 and the tape guide surface 1a. Actually, in order to improve the workability of the assembly, the guide member 8 is
has been assembled later.

What should be noted here is that the guide member 8 is tilted at approximately the same angle as the inclination angle of the axis of the head cylinder 7 (19 to 24
The point is that they are installed so that they are tilted in the same direction. That is, in FIG. 2, the left and right guide members 8 are each inclined downward to the left. In FIG. 2, the effective tape guide surface 10 of the left guide member 8 is the left peripheral surface, and the effective tape guide surface 10 of the right guide member 8 is the right peripheral surface, so these effective tape guide surfaces 10 are inclined. Have meaning in what you do.

A coating roller 11 to which a cleaning liquid can be supplied from the outside is disposed between a supply reel 3a and an opening 4a located in front of the supply reel 3a.
It slides into contact with and rotates.

Now, when loading the head cleaner into the deck,
The loading post 6 is placed in the left and right pockets 5a, 5.
b, the tape 2 enters the inside of the cleaning tape 2 and moves forward, and the tape 2 is inserted between the right opening 4a and the right tape guide member 8, and the left opening 4.
b and the left tape guide member 8, and are brought into contact with the head cylinder 7 in a tangential manner. Since the effective tape guide surface 10 of each guide member 8 is inclined, the entire width of the tape 2 comes into full contact with the head cylinder 7, and the tape 2 comes into partial contact with the circumferential surface of the cylinder 7. It does not move up and down in the axial direction.

[Another embodiment example]

In the above embodiment, the tape guide member 8 is formed into a pin shape, but it may instead be formed into a wall shape or other shape, and it may also be molded integrally with the main body case 1. In short, it is sufficient that the guide member 8 has an effective tape guide surface 10 that is inclined and restricts the loading of the cleaning tape 2 between the pockets 5a and 5b. In order to reduce the sliding resistance of the tape 2 to the guide member 8, it is desirable to install two guide members side by side as shown in the illustrated example, but it is also possible to use only one guide member, such as by using a rotating roller.

[Brief explanation of the drawing]

1 to 3 show an embodiment of the head cleaner according to the present invention, in which FIG. 1 is a schematic plan view in a tape loading state, FIG. 2 is a front view,
FIG. 3 is a sectional view taken along the - line in FIG. 2.
FIG. 4 is a schematic plan view showing a conventional head cleaner in a tape loading state. 1... Body case, 2... Cleaning tape, 3a... Supply reel, 3b... Take-up reel,
4a, 4b...opening, 5a, 5b...pocket, 7...head cylinder, 8...tape guide member, 10...effective tape guide surface.

Claims (1)

[Scope of Claims] 1. A pair of left and right reels 3a, 3b on which the cleaning tape 2 is wound is provided in the main case 1, and the cleaning tape 2 is led out to the front of the case at the left and right ends of the front side of the main case 1. The main body case 1 has left and right openings 4a and 4b on the front surface.
Pockets 5a, 5 for tape loading between b
b are lined up on the left and right and are recessed, the tape path of the cleaning tape 2 is set to cross the front of both pockets 5a and 5b on the front of the main case 1, and the front of the main case 1 is A tape guide member 8 is disposed between the pockets 5 and 5 for guiding the cleaning tape 2 so that it comes into tangential contact with the head cylinder 7 on the deck side, and an effective tape guide surface 10 of the tape guide member 8 is provided.
A head cleaner characterized in that the head cylinder is inclined to correspond to the inclination of the head cylinder 7 on the deck side. 2. The main body case 1 has an original tape guide surface 1a on the front end surface between the pockets 5a and 5b,
There is a tape running gap g on the outside of this tape guide surface 1a.
2. A head cleaner according to claim 1, wherein the tape guide member 8 is provided with a tape guide member 8. 3. The head cleaner according to claim 1 or 2, wherein the entire tape guide member 8 is attached in an inclined manner.