JPS60101728A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To record signals on plural magnetic tapes simultaneously by providing at least one kind of rotating members such as rotary head parts and capstans in running mechanisms for plural tapes on the same shaft, and driving the shaft by one common motor. CONSTITUTION:The rotary head parts of plural tape running mechanism provided in the breadthwise direction of magnetic tapes are coupled with one common motor and driven in common. Namely, plural substrates 30, 30- are provided vertically at specific intervals, and lower cylinders 40a of drums 40 for the rotary heads are fixed onto the respective substrates 30, 30- slantingly to the respective substrates by using fitting screws 40b, 40b-. An upper cylinder 40c having the same diameter with a lower cylinder 40a is provided on the top surface of the lower cylinder and a rotary head 40d is fixed to the upper cylinder 40c between the reverse surface of the upper cylinder 40c and the top surface of the upper cylinder 40a so that the rotary head 40d rotates in one body.

Description

[Detailed Description of the Invention] (Technical Field) Kinoi ψ1 is a magnetic Me recording/reproducing device. The present invention relates to a device for playing back finished magnetic tapes.

(Prior Art) In general, when recording signals on a video magnetic tape housed in a tape cassette or reproducing signals recorded on the same magnetic tape, for example, as shown in FIG. The tape is run using a well-known tape running mechanism to record and play back signals. That is, a supply reel 2 and a take-up reel 6 are rotatably housed in a tape cassette 1 with a predetermined distance between their axes. A magnetic tape 4 is wound and stored with both ends fixed toward the crocodile. A guide post 5° 6 is rotatably disposed next to the supply reel 2 on the front side of the cassette 1, and a guide post 7 similar to the guide posts 5 and 6 is provided next to the take-up reel 3. is installed.

When the tape cassette 1 is not in use, the magnetic tape 4 is unwound from the supply reel 2, and the magnetic tape 4 guided by the guide posts 5.6 is placed between the guide posts 6.7 on the front side of the cassette. After the tension is installed, the guide l
It is wound up on a take-up reel 3 via a store.

When this tape cassette 1 is installed in a magnetic recording/reproducing device, the above-mentioned auto-fourding mechanism is formed inside the magnetic tape 4 stretched across the front surface of the cassette 1. The posts 8 to 12 are positioned, and in this state, the vertical post 8 moves counterclockwise on an arc, and the loading post consisting of the vertical post 9 and the inclined post 10 moves forward. The magnetic tape 4 is pulled out from inside the cassette 4 forward. At the same time, the loading post consisting of the vertical post 11 and the inclined post 12 also moves forward from inside the cassette, and the magnetic chive 4 is pulled out forward. The magnetic chip 4 pulled out in this way is automatically loaded as follows. That is, after the magnetic tape 4 is given a degree of back tension by the tension emboss 8, its position is regulated in the vertical direction by the limiter post 16, and the magnetic tape 4 comes into sliding contact with the gap surfaces of all 11 erasing heads 14, and is moved by the impedance roller. After the tape fluctuation is absorbed by 15 and the direction is changed by vertical post 9, an inclination of a predetermined angle is given by inclined post 10, and the circumferential surface of rotating drum 16 consisting of upper cylinder 16a, lower cylinder 16b and rotating head 16C is Approximately 180
°Wrapped. Then, the magnetic tape 4 is returned to the horizontal position by the inclined post 11 and the vertical post 12,
After the tape fluctuations are absorbed by the impedance throw 217, the vertical position is regulated by the striker 20 for erasing the audio track, and then the same magnetic tape 4 is inserted between the capstan 21 and the pinch p-222. will now be fed at a constant speed. In addition, the above pinch low 222
When the tape cassette 1 is installed in the device, it remains in the lower position until the predetermined tape loading is performed at the tension post 8 and the four loading posts 9 to 12, and after loading, the tape cassette 1 moves to the upper position 4 is pressed against the capstan 21. The tape running mechanism is constructed as described above, and the °C magnetic tape 4 is driven by this tape running mechanism.

By the way, when a magnetic tape on which a video signal, etc. is recorded, is reproduced, the reproduced signal is transferred to a plurality of other magnetic tapes.
Conventionally, when recording, so-called dubbing, a plurality of magnetic recording and reproducing apparatuses having tape running mechanisms similar to those described above have been used to record onto other magnetic tapes.

However, this method requires one device for reproducing magnetic tapes and a device for recording reproduction signals corresponding to the number of magnetic tapes to be recorded.

Therefore, there are disadvantages in that it imposes a heavy economic burden, requires a large amount of space, and is complicated to handle. In addition, if there is only one magnetic recording/reproducing device for recording, the recording time required is equal to the number of magnetic tapes to be recorded, so there is a problem in that there is a large time burden. .

(Objective) An object of the present invention is to record the same signal on multiple magnetic tapes using a small amount of space and
An object of the present invention is to provide a magnetic recording/reproducing device capable of simultaneously recording on a plurality of magnetic tapes.

(Summary) The present invention provides a plurality of tape running mechanisms, and each of at least one kind of rotating members such as a rotating head section and a capstan in the mechanism is disposed on the same axis, and the rotation thereof It is characterized in that the members are driven by one common motor.

(Example) Hereinafter, embodiments of "Kienori" will be described based on the drawings.

A first embodiment of the present invention shown in FIG.
The rotary heads of a plurality of tape running mechanisms provided in one direction are connected to one common motor, and are commonly driven by the same motor. That is,
A plurality of substrates so, so, . ...
On each of the upper parts, a mounting screw 4 is attached with the lower cylinder 40a of the rotary head drum 40 being inclined with respect to each board.
0b, 40b. An upper cylinder 40C having the same diameter as the lower cylinder 40a is rotatably disposed on the upper surface of the lower cylinder 40a on the central axis of the cylinder 40a, and is spaced between the lower surface of the cylinder 40C and the upper surface of the cylinder 40a. The rotating head 40d is fixed to the cylinder 40C so as to rotate together with the cylinder 40C. A drive shaft 50 rotated by a motor 52 is located on the central axis of the upper cylinder 40C! This drive shaft 5
The upper cylinder 40C is fixed at 0. A mounting plate 51 having a movable mounting surface 51a perpendicular to the drive shaft 5o is fixed to the lower surface of the lowermost board 60 with mounting screws 51b, 51b, and the mounting plate 51 is fixed to the lower surface of the lowest board 60. Surface 51a l' (fixed with mounting screw 52a).

In the magnetic recording and reproducing apparatus of the first embodiment, the main parts of which are configured as shown in FIG. When the motor 52 is energized, the drive shaft 5o rotates. Along with this,
The upper cylinder 40C and the rotary head 40d rotate together, and the rotary head 40d can perform recording and/or reproduction. For example, to the bottom rotation Rad4
The signal reproduced by 0d is transmitted to the upper rotary head 40.
It is possible to record on the magnetic tape 4 using the rotary hect 40d located at the upper stage.

Next, the second embodiment of the present invention shown in FIG. In addition, each capstan is driven by one common motor. That is, a plurality of substrates 60, 50.・
. . . As in the first embodiment, rotary head drums 40, 40 . A capstan 61 is attached to the bearing part 60 and passes through the bearing part 60. A large pulley 62 is attached to the lower end of the capstan 61 that passes through the lowest bearing portion 60.
is fixed. A small pulley 63 is fixed to the output shaft of the motor 64 at a position corresponding to the large pulley 62. An endless belt 65 is connected to the small pulley 63 and the large pulley 62. It's been a long time.

Therefore, when the motor 64 is energized, the rotational force of the motor 64 is applied to the small pulley 63. The magnetic tapes 4 are sequentially transmitted to the capstan 61 via the belt 651 and the large pulley 62, and are fed at a constant speed by the pinch rollers 66 which are pressed against the capstan 61 after tape recording is completed. Rotating heads 40d, 40 of a plurality of rotating head drums 40, 40, . . . are driven at the same time.
It is possible to record on the magnetic tape 4 or reproduce signals recorded on the magnetic tape 4 using the signals d, . . . -.

Further, in the third embodiment of the present invention shown in FIG. 4, each capstan in a plurality of tape running mechanisms is
As in the second embodiment, the tape drive mechanism is driven by one common motor at 5 degrees centigrade, and furthermore, the limiter posts of the plurality of tape transport mechanisms are common to each stage.

That is, in addition to a capstan 61 which passes through a plurality of substrates 30, 30, . are fixedly provided on each board 30, and other limiter posts 71 are also fixedly provided on the machine. This limiter post 70 corresponds to the conventional limiter post 13 (see FIG. 1), and the limiter post 71
corresponds to the limiter post 20 (see FIG. 1).

Each substrate 60 has a rotary head drum 8.
0 is set. This rotary head drum 80 is
It is formed by an upper cylinder 80a, a lower cylinder 80b, and a rotating head 80C, and a motor 80d is fixed to the lower surface of the lower cylinder 80b, and the drive shaft of the motor 80d rotates the upper cylinder 80g and the rotary head 80c together. It's getting colder. Further, the bottom of the motor 80d is fixed to a mounting plate 80f having a motor mounting surface 8De inclined with respect to the board 30 with mounting screws 80g, and the mounting plate 80f is fixed to the bottom surface of each board 30 with mounting screws 80h. ing.

Therefore, similarly to the second embodiment shown in FIG. 3, when the capstan 61 is driven, the pinch row 26 that cooperates with the capstan 61
6, the magnetic tape 4 is fed at a constant speed. Further, along with this, recording is performed on the magnetic tape 4 by the rotary heads 8Qc, aoc... of the rotary head drums 80, 80,... provided on each of the plurality of substrates '5O, SO.Q. The recorded signal can be played back. Furthermore, limiter boss) 70.
71 are commonly used as limiter posts in each stage, so the assembly work for each stage is simplified.

(Effects of the Invention) According to the present invention, a plurality of tape running mechanisms are arranged in parallel in the vertical direction, and at least one of the rotating members such as the rotating head section and the capstan in each of the mechanisms is arranged vertically in parallel. Since each of the various rotating members is provided on the same axis and this shaft is driven by one common motor, the following effects are achieved.

That is, dubbing of a tape, which was conventionally performed using two or more magnetic recording and reproducing apparatuses, can be performed with one magnetic recording and reproducing apparatus, thereby improving work efficiency and operability.

Furthermore, since only one expensive motor with a precise servo system is required, a significant cost reduction can be achieved.

[Brief explanation of drawings]

1 is a perspective view schematically showing a conventional tape running mechanism; FIG. 2 is a partially cutaway front view showing a main part of a magnetic recording/reproducing apparatus according to a first embodiment of the present invention; and FIG. The figure is a partially cutaway front view showing a main part of a magnetic recording and reproducing apparatus showing a second embodiment of the invention, and FIG. 4 is a main part of a magnetic recording and reproducing apparatus showing a third embodiment of the invention. FIG. 2 is a partially cutaway front view. 1-0 Tape cassette 2... Field supply reel 3... Take-up reel 4... Magnetic tape 16, 40, 80...
・Drums 21, 61 for rotating head...Nakayapstan Bald 2-ku Shio

Claims (1)

[Scope of Claims] A plurality of tape running mechanisms each including a rotary head drum corresponding to each of a plurality of magnetic tapes are disposed at 5 so as to overlap each other at a predetermined interval in the middle direction of the magnetic tapes, A magnetic recording/reproducing apparatus characterized in that at least 1i11 rotating members in a plurality of tape running mechanisms are driven by a common motor.