JPH07220253A - Multi-channel magnetic recording / reproducing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To reduce the number of types of intermediate members used when disposing a plurality of head chips on one head base with steps. [Structure] Head chip 2b and this head chip 2b
Head chip 2 that is cut out with a thickness corresponding to the track step h with respect to
The two types of head chips of a are alternately arranged on the head base 1, and the head chips are bonded to each other via the intermediate member 3 so that the track steps of adjacent head chips are constant. [Effect] Two types of head chips having different azimuth angles can be attached on the same plane, the number of types of intermediate members for restricting track steps can be reduced, and cost reduction can be realized.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary head type multi-channel magnetic recording / reproducing apparatus such as a digital VTR.

[0002]

2. Description of the Related Art In recent VTRs, especially commercial VTs
In R, there is a demand for downsizing and weight saving, and a method of recording signals digitally is becoming mainstream.
The amount of signals recorded on the tape is increasing with the trend of digitization, and it is necessary to achieve high density recording. Therefore, a so-called multi-channel magnetic recording / reproducing apparatus is widely used in which a signal for one field period is divided into a plurality of heads and simultaneously recorded on a plurality of tracks.

A conventional multi-channel magnetic recording / reproducing apparatus will be described below. FIG. 4 is a plan view of this conventional multi-channel magnetic recording / reproducing apparatus. Further, FIG. 5 is a front view of FIG. In FIG. 4, 11 is a head base. 12a and 12b are head chips having different azimuth angles. Reference numeral 13 is an intermediate member that regulates the track step of the head chip. Two different azimuth angles in a general multi-channel magnetic recording / reproducing device
The types of head chips 12a and 12b are alternately arranged to reduce crosstalk. Further, the head chips 12a and 12b are attached to the head base 11 via the intermediate member 13 having a different thickness for each channel so that the adjacent track steps are constant.

[0004]

However, in the above-described conventional structure, an intermediate member for controlling the track step difference is required for each channel as the number of head chips increases due to the increase in the number of channels, and the types of parts increase. There was a problem.

The present invention solves the above-mentioned problems of the prior art, and makes it possible to attach a plurality of head chips to one head base with a small number of types of components, and to provide an inexpensive multi-channel magnetic recording / reproducing apparatus. The purpose is to provide.

[0006]

In order to achieve this object, a multi-channel magnetic recording / reproducing apparatus of the present invention comprises a first magnetic head having a first azimuth angle and a predetermined head height, and a second magnetic head. A second magnetic head having an azimuth angle and a predetermined height difference from the first magnetic head and having the same reference plane, the first magnetic head and the second magnetic head being an intermediate member. Via the reference surface on the head base having one reference surface, the relative height between a plurality of pairs of the first magnetic head and the second magnetic head that are alternately adjacent to each other is the predetermined height. It will be mounted so that it will be high.

[0007]

According to the present invention, two head chips having different azimuth angles can be attached on the same plane by the above structure, and two adjacent head chips can regulate the track step by one kind of intermediate member. It is possible to reduce the number of intermediate members.

[0008]

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

FIG. 1 is a plan view of a multi-channel type magnetic recording / reproducing apparatus according to an embodiment of the present invention. 2 is a front view of FIG. In FIG. 2, head chips 2a and 2b having different azimuth angles are alternately arranged on a head base 1, and a track step h of each head has an intermediate member 3a and 3b between the head base 1 and the head chips 2a and 2b. It is regulated by pasting.

FIG. 3 is a perspective view of the head chip 2a.
As shown in FIG. 3, the head chip 2a is cut out by giving a thickness corresponding to the track step h to the head chip 2b on the lower side thereof. As a result, the pair of head chips 2a and 2b can be attached on the same plane with a predetermined track step.

As described above, according to this embodiment, since the pair of head chips 2a and 2b having different azimuth angles can be attached on the same plane, the number of types of the intermediate member 3 for restricting the track level difference can be reduced. be able to.

[0012]

As described above, according to the present invention, one of a pair of head chips having different azimuth angles is cut out so as to have a thickness corresponding to a track step, so that the pair of head chips are formed on the same plane. Can be pasted,
In a multi-channel magnetic recording / reproducing apparatus configured by arranging a plurality of head chips on one head base, it is possible to reduce the number of types of intermediate members for controlling the track step difference, which contributes to cost reduction. To do.

[Brief description of drawings]

FIG. 1 is a plan view of a multi-channel magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of the multi-channel magnetic recording / reproducing apparatus of the same embodiment.

FIG. 3 is a perspective view of a head chip 2a of the same embodiment.

FIG. 4 is a plan view of a conventional multi-channel magnetic recording / reproducing apparatus.

FIG. 5 is a front view of a conventional multi-channel magnetic recording / reproducing apparatus.

[Explanation of symbols]

 1 head base 2a, 2b head chip 3a, 3b intermediate member

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Mitsuhisa Fujiki 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd.

Claims (1)

[Claims] 1. A first magnetic head having a first azimuth angle and a predetermined head height, and a second azimuth angle and a predetermined height difference between the first magnetic head and the same reference plane. A second magnetic head having a second magnetic head, and the first magnetic head and the second magnetic head on a reference surface on a head base having one reference surface via an intermediate member. A multi-channel magnetic recording / reproducing apparatus, wherein a plurality of pairs of the second magnetic heads and the second magnetic heads are mounted alternately so that the relative height between adjacent magnetic heads is the predetermined height.