JPH01235091A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To improve workability by providing a motor and electric circuits for driving and controlling the motor on the same substrate and connecting the motor and the electric circuits by conductor patterns formed on the substrate. CONSTITUTION:The stator part of the motor 4 and the electric circuits for driving and controlling the motor 4 are provided on the metallic substrate 21. The rotor 17 side of the motor 4 is mounted to a rotary drum 2 and a capstan 7 side and is thereby integrated. The interface of the electric circuits and the motor 4 and the like is executed by the conductor patterns 28 formed on the substrate 11. There is, therefore, no need for separately providing an electric circuit board as in the prior art and the need for lead wires for the interface is eliminated as well. The assembling characteristic and workability of the device are thereby improved.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a magnetic recording and reproducing device that is used particularly in helical scan systems such as video tape recorders and digital audio tape recorders and has a magnetic tape loading mechanism. be.

[Conventional technology]

Conventionally, in helical scan type magnetic recording and reproducing devices,
For example, a fixed drum installed upright on a mechanical chassis and a rotating drum to which a magnetic head device including a rotating magnetic head is attached are installed coaxially with each other, and a magnetic tape is wound diagonally around the outer periphery of these drums. Signals are recorded or reproduced by driving the magnetic tape and forming diagonal recording tracks on the magnetic tape using a rotating magnetic head that rotates at high speed. Such a magnetic recording/reproducing device is provided with a loading mechanism that pulls out a magnetic tape from a mounted tape cassette and automatically winds the tape around the outer periphery of each drum. This loading mechanism moves a loading block equipped with a tape guide such as a folded guide or an inclined guide with which a magnetic tape is engaged and guided from within the tape cassette by controlling the rotation of a rotation operating member such as a loading ring. It is designed to be transported to a predetermined loading position near the drum, and includes a control motor that drives a rotating operation member and a detection switch and switch for detecting the position of the loading block.

Further, such a magnetic recording/reproducing device is provided with a pinch roller pressing mechanism that performs an operation of pressing the pinch roller against the capstan or releasing the pressing operation. In this pinch roller crimping mechanism, the pinch roller is provided with, for example, a support arm whose one end is rotatably supported, the pinch roller is attached to the other end of this arm L, and the support arm is connected to the support arm via a solenoid plunger, a control motor, a cam, etc. The pinch roller is pressed onto the capstan using the

In this magnetic recording/reproducing device, the magnetic roll runs at a constant speed with the pinch roller pressed against the capstan (pinch roller pressure bonding mechanism), and the pinch roller is released from pressure bonding with the capstan (pinch roller pressure bonding mechanism). Rapid forwarding of the magnetic tape is performed using the roller pressure bonding mechanism B).

By the way, as a conventional magnetic recording/reproducing apparatus as described above, there is one shown in Japanese Patent Application Laid-Open No. 61-8755 as shown in FIG. 3, for example. In the figure, 1 is a mechanical chassis, 2 is a rotating drum, 3 is a pair of tape guides that pull out the magnetic tape and keep the tape running stably when running the tape, 4
is the loading mechanism drive motor, 5 is the pinch roller, and 6 is the loading mechanism drive motor.
1 is a pinch roller support arm, 7 is a capstan, 8 is a pair of reel blocks, 9 is a motor for driving the capstan and reel and running the tape, and 100 is a deck mechanism constituted by each of these members. be. 1
0 is an electric circuit that drives and controls the deck mechanism 100, and 11 is a lead wire that interfaces the deck mechanism 100 and the electric circuit 10.

[Problem to be solved by the invention]

Since the conventional magnetic recording/reproducing apparatus is constructed as described above, the fact that the deck mechanism 100 and the electric circuit 10 are separated requires a lead wire 11 to connect them. The number of these lead wires 11 is about 10 to 100, which makes the soldering and connection work of the lead wires complicated, and accidents such as breakage of the lead wires occur. was severely hindered. Furthermore, the separation of the deck mechanism and the electric circuit has the problem of poor handling.

This invention was made to solve the above-mentioned problems, and its purpose is to provide a magnetic recording and reproducing device that can significantly reduce the number of connections using lead wires and improve workability and productivity. do.

[Means to solve the problem]

The magnetic recording/reproducing device according to the present invention has a motor and an electric circuit for driving and controlling the motor provided on the same substrate, and the motor and the electric circuit are connected by a conductive pattern formed on the substrate.

[For production]

In this invention, the motor and the electric circuit that controls it are provided on the same board and connected by a conductive pattern, so the interface between the two can be done not by lead wires but by the conductive pattern formed on the board. .

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure shows a perspective view of a magnetic recording and reproducing device according to the present invention,
In the figure, 12 is a bridge-type mechanical unit on which a mechanism is mounted, 13 is an integrated substrate on which motors and electric circuits for driving and controlling these are integrated, and 141 is the mechanical unit 1 described above.
2 and the integrated substrate 13, these constitute a magnetic recording/reproducing device 200. FIG. 2 is an exploded perspective view of the above-mentioned device 200, in which 2 is a rotating drum, 4 is a loading mechanism drive motor, 5 is a pinch roller, 6 is a support arm for the pinch roller 5, 7 is a capstan, and 8 is a pair of reel block, 15 is a cross-linked mechanical chassis, 1
6 is a drum base for attaching the rotating drum to the mechanical chassis 15; 17 is a rotor portion of a motor for moving the rotating drum 2; 18 is a drum rotating shaft; 19 is a capstan bearing; 20 is a drive unit for driving the capstan 7. A bridge type mechanical unit 12 is constituted by the rotor portion of the motor. 21 is a metal substrate, 22 is a stator coil for a drum motor, 23 is a stator coil for a capstan motor,
24 is a pair of reel motor stator coils, 25 is a pair of reel motor shafts, 26 is a reel motor rotor, 2
Reference numeral 7 indicates a drive control IC, 28 indicates an electronic component, and 29 indicates a conductor pattern formed on the metal substrate 21. These constitute the integrated substrate 13. Note that 30 indicates a magnetic tape.

The magnetic recording and reproducing apparatus constructed as described above pulls out a magnetic tape, winds it around the rotating drum 2, and runs the tape using the pinch roller 5 and capstan 7, which is the same as the conventional one.

A rotor 17 attached to a rotating shaft 18 of a rotating drum 2 faces a stator coil 22 formed on a metal substrate 21 with a slight gap, thereby forming a drive motor. In addition, the capstan part is attached to the rotor 2 attached to the capstan 7.
0 faces a stator coil 23 formed on a metal substrate 21 with a gap therebetween, forming a capstan motor. Further, the reel portion rotatably engages with a reel motor shaft 25 protruding from the metal substrate 21, and forms a reel motor rotor 26 facing the stator coil 24 with a gap therebetween. The motors mentioned above are driven and controlled by an electric circuit formed by a drive control IC 27 and electronic components 28 mounted on the metal substrate 21.

As described above, in this invention, the stator part of the motor and the electric circuit for driving and controlling the motor are provided on the metal substrate 21, and the rotor side of the motor is attached to the rotating drum and capstan side to integrate them. The interface between the electric circuit 21 and the motors is performed by a conductor pattern formed on the metal substrate 21.

〔Effect of the invention〕

As explained above, according to the present invention, the motor and the electric circuit for driving and controlling the motor are provided on the same substrate, and the F4 electrical connection between the motor and the electric circuit can be made by the conductor pattern formed on the substrate. This eliminates the need for a separate electrical circuit board and the need for lead wires for interfaces, as was the case in the past. In addition, the ease of assembly and workability of the device has been greatly improved, and lead wires for connecting the motor and electric circuit are no longer required.
Accidents such as breakage of lead wires can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a magnetic recording/reproducing apparatus according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the apparatus shown in FIG. 1, and FIG. 3 is a perspective view of a conventional magnetic recording/reproducing apparatus. 2... Rotating drum, 4... Loading mechanism drive motor, 7... Capstan, 10... Electric circuit, 12
・Cross-linked mechanical unit, 13...Integrated substrate, 15...
- Mechanical chassis, 16... Drum base, 17... Rotor section for drum motor, 20... Rotor section for capstan motor, 2nd... Metal substrate, 22... Stator coil for drum motor, 23. ... Stator coil for capstan motor, 24... Stator coil for reel motor, 26... Rotor for reel motor, 29... Conductor pattern, 30... Magnetic tape. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Claims] In a device for recording and reproducing information on a magnetic tape, one or more motors for driving the magnetic tape to travel, recording and reproducing the same, and an electric circuit for driving and controlling the motors are provided on the same substrate. and a magnetic recording/reproducing device, wherein electrical connection of an electric circuit is made by a conductor pattern formed on the substrate.