JPS587498Y2 - Tape Anna Souchi - Google Patents

Description

[Detailed description of the invention] The present invention is a tape recording method in which a rotating magnetic head scans a recording track in a diagonal direction with respect to the running direction of a tape-shaped recording medium that runs while contacting a part of the outer peripheral surface of a kite cylinder. Playback devices, such as tape recording and playback devices,
The present invention relates to a tape guiding device.

A conventional device will be explained with reference to FIG.

In FIG. 1, a tape-shaped recording medium 1 (hereinafter simply referred to as tape) runs from left to right on the paper.

3 is a fixed upper cylinder, and 8 is a fixed lower cylinder, which are arranged above and below with a slight gap left. Although not shown in the drawing, the magnetic head moves from the back side of the paper to the front side of the paper in this gap. It is in contact with 1.

A fixed guide 2 is attached to the outer peripheral surface of the lower cylinder 8 in a stepped manner.

Conventionally, a pressing member 4 elastically engaged with the upper cylinder 3 is used to push the tape 1 against the fixed guide 2 while sliding it on the outer circumferential surface of the upper and lower cylinders 3°8. A method was adopted in which the kite was elastically pressed against the fixed kite 2.

However, in the above method, it is difficult to optimally adjust the elastic force of pressing, and there is a risk of damaging the tape 1. In order to attach the pressing member 4, the upper cylinder 3 is
, and the need to perform complicated IP processing.

The present invention was developed with this in mind, and aims to provide a tape guide device with a simple structure that does not damage the tape and can provide sufficient pressing force. .

The feature of the present invention is that the tape has a taper in the width direction, is sufficiently narrow compared to the length of the tape in contact with the guide cylinder, and the width is tapered in the direction approaching the tape. The tape guide, which gradually becomes smaller, is installed on the top of the outer peripheral surface of the upper cylinder so that its mounting position in the vertical direction can be adjusted, and the upper edge of the tape-shaped recording medium in the width direction rests on a part of the tapered surface of the tape guide. The purpose is to adopt a structure in which one is attached so that it can be moved.

The present invention will be explained below with reference to the drawings.

FIG. 2 is a front view showing an embodiment of the present invention, and FIG. 3 is a longitudinal sectional view thereof.

In FIGS. 2 and 3, 11 is a tape running from left to right in the paper, 2 is a fixed guide fixed to the outer peripheral surface of the fixed lower guide cylinder 8 in a stepped manner, and 3 is a fixed upper guide cylinder. The upper and lower cylinders 3 and 8 are arranged to face each other with a small gap in between, and the rotating magnetic head 9 comes into contact with the tape 1 in this small gap.

Reference numeral 5 denotes a tape guide, which has a taper in the tape width direction, and is attached to the upper kite cylinder 3 via a plate 6 so that the tape 1 rides on a part of the taper.

In the embodiment, they are installed at two locations, but the number can be increased if necessary, and depending on the size of the cylinder, it may be effective to install them at one location.

By tapering the tape in the width direction in this manner, a force is generated in this portion that presses the tape 1 in the direction of the fixed guide 2.

This force is generated when the tape guide 5 is only slightly applied to the upper end of the tape 1.

In addition, since only a portion of the tape 1 contacts the tape guide 5, the tape 1 is only slightly deformed in this portion, and there is almost no effect on the contact area between the magnetic head 9 and the tape 1, and the recording track is It does not affect the linearity of

Attachment of the tape guide 5 is extremely simple, for example, by simply providing a screw hole in the upper surface of the upper cylinder 3 and tightening it with the screw 1 through the plate material 6.

The tape pressing force can be adjusted by, for example, inserting a spacer 10 between the plate material 6 and the tape guide 5, changing the thickness of this spacer 10, and changing the position of the tape guide 5 in the tape width direction. It is possible.

Note that the fixed guide 2 is not a band-shaped material wrapped around the outer circumferential surface of the lower cylinder 8 as shown in FIGS. 2 and 3, but a step formed by cutting the outer circumferential surface of the lower cylinder 8. The present invention is also effective in cases where only a small portion is provided.

As described above, according to the present invention, a tape holding mechanism with a simple structure and no fear of damaging the tape can be obtained, and its practical effects are great.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a conventional example, FIG. 2 is a front view of an embodiment of the present invention, and FIG. 3 is a longitudinal sectional view thereof. Explanation of symbols 1... Tape-shaped recording medium, 2...
... Fixed guide, 3 ... Upper guide cylinder, 5 ... Tape guide, 6 ... Plate material, 1.
...Screw, 8...Lower guide cylinder, 9
...Magnetic head, 10...Spacer.

Claims (1)

[Scope of utility model registration request] An upper cylinder and a lower cylinder are arranged vertically with a small gap in between and are used as guide cylinders, and the tape-shaped recording medium is made to run diagonally in the left and right direction while contacting the outer peripheral surfaces of the two cylinders in a portion sandwiching the small gap. In a tape guide device in a tape recording and reproducing apparatus that scans a recording track diagonally on a tape-shaped recording medium, a fixed guide is stepped at the lower part of the outer periphery ffi of the lower cylinder to guide the tape-shaped recording medium as it runs diagonally in the left and right directions. The tape is tapered in the tape width direction, and the width in the tape running direction is sufficiently narrow compared to the length of the tape in contact with the guide cylinder, and the installation is close to the tape from the part. A tape guide whose width gradually decreases in the vertical direction is attached to the upper part of the outer peripheral surface of the upper cylinder so that the mounting position in the vertical direction can be adjusted, and the upper edge of the tape-shaped recording medium in the width direction is attached to a part of the tapered part of the tape kite. A tape guide device characterized in that the tape-shaped recording medium is pressed in the direction of the fixed guide by running the tape-shaped recording medium on the surface of the fixed guide.