JPS62279553A - Tape guide device - Google Patents

Abstract

PURPOSE:To prevent the occurrence of deviation of the azimuth at the time of adjustment of the running height of a tape by moving both guides, which control the vertical position of the tape in both sides of a head, in parallel in the direction orthogonal to the tape running direction. CONSTITUTION:When a depressive force or a tensile force vertical to a chassis 12 is applied to a guide 3, the guide 3 is moved in the direction of flexure of a parallel spring 4. In this case, the attitude of the guide 3 to the chassis 12 is not changed but only the height is changed. Since the azimuth is not changed consequently, readjustment of the azimuth is unnecessary if the guide is adjusted to a prescribed position once.

Description

[Detailed description of the invention] 3. Detailed description of the invention [Purpose of the invention] (Industrial application field) The present invention relates to a tape guide device for a tape recorder.

(Prior Art) Examples of tape guide devices used in conventional tape recorders are shown in FIGS. 7 and 8. A guide 12 for regulating the running position (vertical position) of the tape 2 in the width direction is provided on the upstream side of the magnetic head 1 (hereinafter abbreviated as head) in the tape running direction. In order to adjust the vertical position of the tape 2, the screw 7 with the compression spring 8 is adjusted and the guide 1
If the tape 2 is moved up or down, the azimuth of the tape 2 in the running direction on the head 1 will shift. Therefore, it is necessary to adjust the azimuth of the head 1 again after regulating the vertical position of the tape 2. Also, with such a one-sided guide 12, it is difficult to suppress vibrations (waving) of the tape in the width direction on the head 1. I can't.

On the other hand, Japanese Patent Publication No. 60-35744 discloses a device in which guides 13 are provided on both sides of the head 1 to prevent the tape from being positioned incorrectly. This is shown in FIGS. 9 and 10. Similarly to the adjustment method described above, the guide 13 is moved up and down by adjusting the screw 7 provided with the compression spring 8. The vertical position and direction of the tape 2 on the head 1 are determined by the positional relationship of both guides 13. Although waving of the tape 2 can be suppressed by providing guides 13 on both sides, azimuth shifts occur because the two screws 7 are adjusted to match the vertical position of the tape 2.

Therefore, a problem arises in that it is necessary to align the upper and lower positions of the tape 2 and also adjust the azimuth.

(Problems to be Solved by the Invention) As mentioned above, in the conventional tape guide device, it is difficult to determine the vertical position of the tape on the head. There was a problem in that when the A was adjusted, the azimuth had to be adjusted again.

The present invention has been made in view of the above points, and its purpose is to provide a tape guide device that adjusts the running height of the tape on the head and prevents the azimuth of the tape from shifting. There is a particular thing.

[Structure of the invention]

(Means for Solving the Problems) In the tape guide device of the present invention, both guides that regulate the vertical position of the tape on both sides of the head are configured to be movable in parallel in a direction perpendicular to the tape running direction. ing.

(Function) In the device configured in this way, the azimuth between the head and the tape is adjusted by adjusting the head position in advance, and then moving the single guide in parallel in a direction perpendicular to the tape running direction. , only the vertical position of the tape can be arbitrarily adjusted independently of the azimuth adjustment.

(Embodiment) FIGS. 1 and 2 show an embodiment of the tape guide device of the present invention. FIG. 1 is a perspective view, and FIG. 2 is a front view.

The head 1 is a combination head fixed to a head chassis 12, and the vertical running position of the tape 2, which is a magnetic recording medium, is regulated by guides 3 on both sides of the tape running upstream and downstream of the head 1.

The base of one side of the guide 3 is connected to the chassis 12 by a parallel plate spring 4.
It is held by a block 5 fixed to.

In such a configuration, when a pressing force or a tensile force perpendicular to the chassis 12 is applied to the guide 3, the guide 3 moves along the direction of deflection of the parallel plate spring 4. At this time, the attitude of the guide 3 with respect to the chassis 12 does not change, and only the height changes. Therefore, since the azimuth does not change, once the azimuth is adjusted to a predetermined value (as is well known, by adjusting the inclination of the head, etc.), there is no need to adjust it again.

3 and 4 are front views of the tape guide 81 including the adjustment mechanism for the guide 3. FIG.

This is a branch 6 protruding from the block 5 and guide 3.
are connected by screws 7, and the force is obtained from the deflection force of the parallel plate spring 4. In either example, by rotating the screw 7, the regulation position of the branch part 6 of the guide 3 can be adjusted to the chassis 12.
go up and down against

FIG. 5 shows a modification of the embodiment shown in FIG. 4, in which the branch 6 is pressed against the countersunk portion 7a of the screw 7 by a sufficiently strong spring 8. Therefore, the crushing edge against the tape regulating portion of the guide 3 is obtained from the bending force of the external elastic body (spring 8).

FIG. 6 shows an embodiment including a locking mechanism. A long hole 9 parallel to the running direction of the tape 2 is provided in the guide 3, and a lock screw 10 passes through the long hole 9 and is fitted into the block 11. The six blocks 11 are connected to the chassis. 1
2, the guide 3 is fixed by tightening the lock screw 10.

In the above embodiment, the parallel plate spring 4 is used to move the guide 3 in parallel in a direction perpendicular to the running direction of the tape, but the guide 3 is not limited to using the parallel plate spring, and various means can be used. is applicable.

For example, a guide bar 15 may be provided protruding from the chassis 12 in parallel with a direction perpendicular to the running direction of the tape, and the screw 7 may be used to adjust the guide 3 so that it can move parallel to the guide bar 15.

Further, although an embodiment using a combination head has been shown, it is obvious that the present invention can also be applied to a normal magnetic head.

〔Effect of the invention〕

As described in detail above, according to the present invention, the running height of the tape above the head can be adjusted independently of the 3M azimuth adjustment, so that the vertical position of the tape can be easily adjusted.

[Brief explanation of the drawing]

1 and 2 are perspective views and front views showing one embodiment of the tape guide device of the present invention, and FIGS. 3 and 4 are front views of the tape guide device with the 3111 mechanism according to the present invention. ,
FIG. 5 is a front view showing a modified example. FIG. 6 is a perspective view showing a tape guide device with a locking mechanism according to the present invention, FIG. 7 is a perspective view showing a modified example, and FIGS. 8 to 11 are perspective views showing a conventional tape guide device. It is a front view. 1...Magnetic head 2...Tape 3...
Guide 4...Parallel plate spring (supporting means) 7...
・Screw (adjustment mechanism) Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Figure 10 Figure ■Figure

Claims (2)

[Claims] (1) A tape guide device that has a magnetic head fixed on a substrate that performs recording/reproduction by contacting the tape exposed on the front surface of the cartridge, and has guides on both sides of the magnetic head that regulate the vertical position of the tape. a supporting means for moving the guide in parallel in a direction perpendicular to the running direction of the tape; and a supporting means for moving the guide in parallel in a direction perpendicular to the running direction of the tape, and arbitrarily adjusting the vertical position of the tape. A tape guide device characterized by comprising an adjustable adjustment mechanism. (2) The tape guide device according to claim 1, further comprising a locking mechanism for holding the guide at a desired position after the guide is moved and adjusted to the desired position.