JPS6113287B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in magnetic heads used in tape recorders.

A conventional magnetic head is attached to a slide plate via a head mounting board, for example, and the head mounting board is usually mounted on a pair of pillars that are spaced apart from each other on the slide board. is placed,
Two side projecting leg pieces of the head itself are each screwed to this mounting board.

However, since such a magnetic head mounting structure requires mounting parts such as screws, it is disadvantageous not only in terms of parts cost but also in terms of mounting work cost.

The present invention was made in view of the above circumstances, and
A pair of mounting legs, each having a position regulating part and an elastic engagement part, which are integrally protruded from the modular magnetic head main body, elastically clamp the magnetic head main body in a position-regulated state with respect to the mounting board. By creating a configuration that allows for one-touch installation, the effectiveness of modularization is further promoted, the cost of parts and work during installation can be significantly reduced, and the accuracy of installation can be improved as much as possible. The object of the present invention is to provide an extremely good magnetic head that has been improved as described above.

An embodiment of the present invention will be described in detail below with reference to the drawings.

That is, FIGS. 1 and 2 a and b show the case where the head is applied to an erasing head, for example, and a head-shaped holder 1 made of flexible synthetic resin or the like is used.
A core 12 and a shield case, which constitute a head structure, around which a coil for applying an erase signal is wound, for example, and a shield case are buried inside the head structure, and a magnetic circuit forming portion of the head structure is embedded in a side surface of the holder 11 that faces the magnetic tape. For example, the gap portion 13 of the core 12
is exposed, and an erase signal application terminal 14 is provided protrudingly on the side opposite to the inner surface facing the tape, thereby forming a modular magnetic head main body A.

A pair of mounting legs 151 and 152, which will be described later, are integrally formed on the bottom surface of this modular magnetic head main body A.

That is, this pair of mounting legs 151, 152
are integrally provided to protrude downward from the bottom surface of the holder 11, and are respectively connected to the mounting board 16.
Each pair of side protrusions 171 can be locked on the upper surface of
a, 171a and 172a, 172a, first and second position regulating portions 171, 172;
These first and second position regulating parts 171, 17
2 and extend below the mounting board 16.
A recess 181, which is inserted into the mounting holes 161, 162 of the mounting board 16 and has a width equal to the thickness of the mounting board 16.
182 to the pair of lateral protrusions 171a, 712
First and second elastic engagement portions 1 formed together with a
It consists of 83,184.

Note that when the pair of mounting legs 151 and 152 are attached to the mounting board 16, the pair of mounting legs 1
51, 152 first and second position regulating portions 17
1,172, the position is restricted by the same No. 1
And the second elastic engagement parts 183, 184 are attached to the mounting holes 161, 162 when passing through the mounting holes 161, 162.
1 and 162, and after passing through, it returns to its original shape, and in this process, the corresponding parts of the mounting board 16 come to be held in the recesses 181 and 182.

Therefore, the pair of mounting legs 151 and 152 can be mounted with one touch while ensuring the mounting accuracy, especially in the height direction, with the magnetic head main body A regulated in position relative to the mounting board 16, which serves as the head mounting member. First and second position regulating parts 171, 172 and first and second elastic engagement parts 1 that can be attached
83,184.

The mounting board 16 is made of, for example, synthetic resin, and the mounting board 16 is attached to a head slide plate 21 made of, for example, synthetic resin via screws 19 and springs 20 so that the height and inclination can be finely adjusted. installed on. The tip of the screw 19 is screwed into a screw hole 22 provided in the slide plate 21.

As described above, the pair of mounting legs 151, which have the first and second position regulating parts 171, 172 and the first and second elastic engagement parts 183, 184,
Mounting board 1 which becomes a head mounting member by 152
According to the magnetic head which can be attached with one touch so that the modular magnetic head main body A can be elastically clamped to the magnetic head 6 in a position-regulated state,
It can further promote the effectiveness of modularization, and
Not only can the parts cost be reduced because the conventionally required mounting parts such as screws can be omitted, but the head installation work can be significantly simplified, which can significantly reduce the installation work cost and also improve the installation accuracy. Be able to improve as much as possible.

In other words, as in this embodiment, the magnetic head main body has a simple modular structure in which the magnetic head structure is embedded in a holder made of synthetic resin, and the position regulating portion and the elastic engagement portion are connected to each other from the modular magnetic head main body. By integrally protruding a pair of mounting legs having a section, the magnetic head can be realized at a lower cost while ensuring an improvement in mounting accuracy, thereby promoting the effectiveness of modularization. It is possible.

In addition, in the above, the pair of mounting legs 151, 15
2 first and second position regulating parts 171, 172
The mounting board 16 may be the head slide plate 21, since sufficient mounting dimensional accuracy can be obtained.

Therefore, as described in detail above, according to the present invention, a pair of mounting legs each having a position regulating portion and an elastic engagement portion, which are integrally protruded from the main body of a modular magnetic head, can be attached to the mounting substrate. By creating a structure that allows for one-touch installation by elastically holding the magnetic head body with its position regulated, it is possible to further promote modularization, and to significantly reduce parts costs and installation work costs during installation. It is possible to provide an extremely good magnetic head that is improved so that the mounting accuracy can be improved as much as possible while reducing the mounting accuracy.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of the magnetic head according to the present invention, and FIGS. 2a and 2b are a perspective view and a partially sectional front view showing the magnetic head of FIG. 1 in an attached state. DESCRIPTION OF SYMBOLS 11... Holding body, 12... Core, 13... Gap part, 151, 152... Mounting leg, A... Magnetic head main body, 171, 172... Position regulating part, 1
83, 184...Elastic engagement portion, 16... Mounting board, 161, 162... Mounting hole, 171a, 71
2a... Lateral protrusion, 181, 182... Recess.

Claims (1)

[Claims] 1. A head structure is embedded inside a head-shaped holder made of flexible synthetic resin, and a magnetic circuit forming portion of the head structure is exposed at a side surface of the holder that faces the magnetic tape. A modular magnetic head main body and a pair of lateral sides that integrally protrude downward from the bottom surface of the holder of the modular magnetic head main body and can be respectively latched to the top surface of the mounting board. first and second position regulating parts each having a protrusion, each extending below the first and second position regulating parts and inserted into the mounting hole of the mounting board, and having a thickness of the mounting board; a recessed portion having a width equal to that of
and a second elastic engagement portion, the magnetic head main body is connected to the mounting substrate by the first and second position regulating portions of the pair of mounting legs, and the first and second position regulating portions of the pair of mounting legs. and a second elastic engagement portion, the magnetic head is configured to be elastically held in a position-regulated state.