JPS5830260Y2 - Magnetic head rotation mechanism - Google Patents

Description

[Detailed description of the invention] The invention is a device control signal recording/playback head dedicated to the automatic switching performance stop device of a tape recorder.
It is.

According to the diagram, 1 is a magnetic head, 2 is a head holder, and 3 is a magnetic head.
is a shaft fixed to the 40 unit, and 1 and 2 are inserted as a unit, and it swings freely to the left and right by β degrees around that axis.
4' is a pin fixed to 4, and a groove formed in 2 limits both extremes of the swing angle β.

Reference numerals 5, 6, and 7 are tape guide pins that guide the tape 9 as shown in the figure and are configured to apply appropriate pressure to the tape head.

8 is a height adjustment plate for the head 1, and 10 is a rewind reel.

The head is constructed so that the magnetic gap is inclined by α degrees with respect to the tape running direction and swings left and right by β degrees.

The purpose of sloping the magnetic gap is to record device control signals superimposed on the audio track.
This is to prevent the device from malfunctioning, and the direction and angle of inclination must be determined in a standard manner to ensure compatibility with tape recorders.

For example, 4I upper right.

Also, the purpose of making the head swing by β degrees as the tape runs is that during performance, the tape runs to the right, the head swings to the right according to the tape, and the magnetic gap is brought into close contact with the tape to ensure recording and playback of control signals. When rewinding the tape, the tape runs to the left, the head swings to the left as shown by the dotted line, and the tape automatically moves completely away from the magnetic gap, allowing the device to completely pick up the tape signal without picking up the tape signal. This is to prevent malfunctions.

The device described here does not exist among tape recorders currently on the market.

Therefore, the design is not convenient for mounting a control signal head.

The head of this invention can be used in a commercially available off-the-shelf tape recorder by simply attaching it to the front cover plate of the mechanism at an appropriate position between the rewind reel and the erasing head, and attaching the head terminal socket. can be fulfilled.

[Brief explanation of drawings]

The drawings are a plan view and a side view showing an example of the present invention.

Claims (1)

[Scope of utility model registration request] Due to the related combination of the pin 4' provided on the stand 4 that fixes the rotating shaft 3 of the holder 2 of the magnetic head 1 and the groove formed in a part of the holder 2, the magnetic head can freely move left and right according to the running direction of the tape. is limited so that it can only rotate by β angle,
When playing the tape, the tape runs to the right and the head rotates accordingly, so that the magnetic gap is completely pressed against the tape, and when the tape is unwound, the tape runs to the left and the head rotates accordingly. , a magnetic head rotation mechanism that automatically operates so that the magnetic gap is completely separated from the tape.