JPH0119231Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a head mounting device used in a reverse type tape recorder.

(b) Prior art In a tape recorder, recording or playback can be performed not only when the tape is run from left to right, but also when the tape is run from right to left. There is something I did. In such a case, there is a method in which magnetic heads are provided on each of the upper and lower tracks, but this is expensive and there are problems in adjusting the azimuth. Therefore, a gap in one direction is formed in one half of a magnetic head that is attached so that it can rotate parallel to the tape surface, and when recording or playing back by running the tape in the right (left) direction, the gap is When the magnetic head is placed on the upper (lower) side track and the tape is run in the left (right) direction for recording or playback, the gap that rotates the magnetic head half a rotation is placed on the lower (upper) side track. There are devices that allow recording or playback of tape in both left and right directions using a single magnetic head. In such magnetic heads, adjusting the tilt angle has conventionally been troublesome.

(c) Purpose of the invention The object of the invention is to provide a head mounting device that allows easy adjustment of the tilt angle of a magnetic head.

(d) Structure of the invention The present invention includes a rotating head stand which is rotatably attached to a head base provided on a slide base, and which has a gap corresponding to the upper (lower) half track of the tape. This invention relates to a head mounting device in which the top and bottom are mounted using a spring and a screw, and the tilt angle can be adjusted by the rotational position of the screw and spring.

(e) Embodiment An embodiment of the head mounting device of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a head base, an adjustment piece 2 protruding forward at the top, and mounting pieces 3 and 3 formed at the bottom, respectively. Furthermore, a hole 4 is bored in the center. The adjusting piece 2 and the mounting pieces 3, 3 have screw holes 5,
6,6 are provided. Reference numeral 7 denotes a rotary head stand which is rotatably attached to the head base 1, and includes a cylinder 8 penetrated through the hole 4 of the head base 1 and a pair of projecting pieces 10 provided diagonally opposite to the adjusting piece 2. , 10. A pair of slits 11, 11 are formed in the cylinder 8. 1
Reference numeral 2 denotes a rotating head, which has a gap (not shown) corresponding to the upper or lower half track of the tape, and has screw holes 13a and 13b drilled in the upper and lower parts, and also has a tape guide 14 attached thereto. It is being

The head mounting device of the present invention is mounted on a tape recorder in the following manner. First, screws are passed through the screw holes 6, 6 in the mounting pieces 3, 3 of the head base 1, and the head base 1 is screwed onto a slide base (not shown) on the tape recorder side. After that, the cylinder 8 of the rotating head stand 7 is passed through the hole 4. Then, the protrusion 1 of the retaining ring 15 is inserted into the slits 11, 11 at the tip of the cylinder 8 passed through.
6, and attach the rotary head stand 7 to the head base 1.
Rotatably attached to. Next, the screw 17b is screwed into the screw hole 13b on the lower side of the rotary head 12. After the screw 17b passes through the screw hole 13b, the spring 18 is inserted and is further screwed into the screw hole of the rotary head base 7, so that the rotary head 12 is temporarily fixed to the rotary head base 7. In this state, the screw 17a is passed through the screw hole 13a on the upper side of the rotary head 12, and after the spring 18 is inserted, the spring 18 is screwed into the screw hole of the rotary head stand 7, thereby turning the rotary head 12 into a rotary head. Although it is fixed to the stand 7, the contact angle, that is, the tilt angle with respect to the tape surface can be adjusted by changing the screwing state of the screw 17a. For example, if the lower screw 17b is left as is and only the upper screw 17a is turned and twisted to the left, the upper side of the rotating head 12 will be tilted toward the rotating head stand 7, and conversely, the screw 17a will be rotated to the right. If you do so, the upper side of the rotary head 12 is
Lean further away. In this way, the tilt angle of the rotary head 12 is adjusted. Also, a spring 2 is inserted into the screw hole 5 in the adjustment piece 2 of the head base 1.
0 inserted into the screw 19, and then screw the screw 19 into the
Screw it in until it touches the adjusting piece 10 of the rotary head stand 7. Then, the screw 19 presses the adjustment piece 10, and the azimuth adjustment is performed by tilting the rotary head stand 7 so that the gap of the rotary head 12 is at an optimal angle with respect to the running direction of the tape.

By using the rotary head mounted by the head mounting device of the present invention, recording and playback can be performed while the tape is running in either the right or left direction. That is, when the tape is run to the left, the gap of the rotary head 12 hits the upper side of the tape, recording or reproducing a signal on the upper track. When the tape is run in the opposite direction to the right by operating a switch on one side to reverse the motor, the retaining ring 15 is rotated in conjunction with the operation of the switch.
Accordingly, the rotary head stand 7 and the rotary head 12
It rotates 180 degrees and now the gap of the rotating head 12 contacts the track on the underside of the tape, so
Tracks on the bottom of the tape can be recorded or played back.

(f) Effects of the invention As mentioned above, the head mounting device of the present invention is designed so that the rotary head is attached to the rotary head stand rotatably provided on the head base using screws passing through the screw holes provided above and below. The tilt angle can be easily adjusted by rotating the screw.

[Brief explanation of the drawing]

The figure is an exploded perspective view of the head mounting device of the present invention. 1... Head base, 7... Rotating head stand, 12...
rotating head.

Claims (1)

[Scope of utility model registration request] The rotating head includes a head base provided on a slide base, a rotating head stand rotatably attached to the head base, and a screw having a gap for half the track of the tape and passing through screw holes provided at the top and bottom. 1. A head mounting device comprising a rotating head mounted on a base, the tilt angle of the rotating head being adjusted by the position of the screw.