WO2001011620A1

WO2001011620A1 - Magnetic recording/reproducing device

Info

Publication number: WO2001011620A1
Application number: PCT/JP1999/004212
Authority: WO
Inventors: Shinichi Yasui
Original assignee: Matsushita Electric Industrial Co., Ltd.
Priority date: 1998-02-16
Filing date: 1999-08-04
Publication date: 2001-02-15
Also published as: CN1321308A; JPH11232736A

Abstract

A small-sized magnetic recording/reproducing device comprises a chassis substrate (30), a reel stand (1) for magnetic tape (10), a head (8) for reading and writing information on the magnetic tape, a first motor (15) and a second motor (12), mounted on the chassis substrate, and drive means (9,16,17,18). The reel stand covers the first motor. The first motor drives all the mechanical elements except the reel stand, while the second motor drives the reel stand.

Description

Description Magnetic recording / reproducing device Technical field

The present invention relates to a magnetic recording / reproducing apparatus, and more particularly, to a magnetic recording / reproducing apparatus using a magnetic tape as a recording medium. Background art

FIG. 4 is a plan view showing a main part of an example of a conventional magnetic recording / reproducing apparatus. FIG. 4 is a plan view showing an outline of a general rotary head type magnetic recording / reproducing apparatus having a tape loading means for pulling out a magnetic tape from a tape cassette to a predetermined recording position.

The supply reel base 1 is engaged with a supply reel 4 of a tape cassette (not shown). The take-up reel base 2 engages with the take-up reel 5.

The arms 6a, 6b, 7a, and 7b are provided with a pair of conventionally known toggle mechanisms that pull out the magnetic tape 10 in the tape force set at least during recording and reproduction and wind the magnetic tape 10 around the rotary head cylinder 8 at a predetermined angle. Tape loading means. The arms 6a, 6b, 7a, and 7b are configured to selectively perform a tape loading operation and an unloading operation by rotating the drive gear 9 in the forward and reverse directions.

The rotation of the drive shaft 15 a of the loading motor 15 is transmitted to the first worm gear 23 a via the intermediate gear 19. The first worm gear 23a is fixed to one end of a rotating shaft 21 rotatably supported by the chassis substrate 30 by bearings 20a and 20b. The rotation of the rotation axis 21 is Is transmitted to the drive gear 9 via a reduction mechanism including a second worm gear 23 b fixed to the other end and gears 18, 17, 16.

That is, the driving gear 9 is rotated forward or backward by the loading motor 15, and the rotation causes the toggle mechanism including the arms 6 a and 6 b to expand and contract. Further, the rotation of the drive gear 9 is caused by extending and contracting a toggle mechanism including the arms 7a and 7b via a transmission lever 11 that rotates about a shaft 11a, and thereby the arms 6b and 7 The loading bosses 6c and 7c provided at the end of b are moved along a predetermined route, and the magnetic tape 10 is selectively operated for the mouth opening operation and the unmouthing operation. In addition, the capstan 13 is driven by the capstan mo 12. Further, a pinch roller 14 is provided. The driving force of the capstan motors 12 is selectively transmitted to the supply reel table 1 and the take-up reel table 2 by a transmission mechanism (not shown). 2 is driven to rotate.

The magnetic recording / reproducing apparatus is configured to perform the above operation. In the above configuration, in order to cause the magnetic tape 10 to selectively travel in a normal / reverse direction along a predetermined tape traveling path, the supply reel table 1, the take-up reel table 2, and the capstan 13 are rotationally driven. In order to perform a tape loading operation and an unloading operation, a loading motor 15 for driving the tape loading means is required. Thus, at least two moats are required.

In general, the capstan motor 12 of the two motors, the capstan motor 12 and the mouthing motor 15, directly connects the capstan 13 that requires the most accurate rotation control. The key configuration The capstan motor 12 selectively transmits the driving force to the supply reel table 1 and the take-up reel table 2 via a plurality of transmission gear groups. Further, the rotational force of the motor 15 is also transmitted to the driving gear 9 of the loading means via a plurality of transmission groups.

As a matter of course, in order to reduce the size of the entire apparatus and simplify the driving force transmission system, it is desirable that the motor, which is the driving source, be arranged near the driven apparatus. However, in the vicinity of the drive gear 9 of the tape loading means, a space for mounting the tape cassette, a space for disposing the rotary head cylinder 8 and a space for moving the tape opening means itself are required. For this purpose, the loading mode 15 was arranged at a position distant from the drive gear 9 of the tape loading means. As a result, miniaturization of the entire device and simplification of the driving force transmission system were hindered. The present invention provides an effective means for solving such a problem. Disclosure of the invention

A magnetic recording / reproducing apparatus according to the present invention includes a chassis one substrate, a magnetic tape reel base, a head for exchanging information with the magnetic tape, a first motor fixed to the chassis one substrate and a second motor. A second motor; and a driving force transmission mechanism, wherein the reel base is installed so as to cover the first motor, and the second motor drives the reel base.

Particularly preferably, the first motor has a drive shaft provided to penetrate the chassis substrate, the drive force transmission mechanism is disposed on the back surface of the chassis substrate, and the drive force of the drive shaft is: The magnetic tape is transmitted as driving force of a tape loading mechanism that pulls out the magnetic tape to a predetermined recording position via the driving force transmission mechanism. Particularly preferably, the motor further includes a motor outer frame fixed at one end to the chassis. The driving force transmitting means has a driving gear and a driven gear. The reel base is rotatably attached to a support shaft implanted at the other end of the motor outer frame. The driven gear rotationally drives the reel base in accordance with the drive gear, has a rotation center coaxial with the support shaft, and is integrally fixed to a lower part of the reel base. When the rotation center axis of the reel base is tilted by a predetermined angle with respect to the support shaft, the motor outer frame slides on the lower end of the reel base to contact the rotation center axis of the reel base. Has a sliding surface that prevents further tilting.

Particularly preferably, the reel base is a supply reel base for supplying a tape when performing at least one of normal recording and reproduction. With the above configuration, the space for disposing the motor itself is reduced. In addition, the motor can be installed near the driven device. Further, the driving force transmission mechanism can be simplified. As a result, a downsized and simplified magnetic recording and reproducing apparatus can be obtained. Brief description of the screen

FIG. 1 is a plan view showing a main part of a magnetic recording / reproducing apparatus according to an embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the magnetic recording / reproducing apparatus according to one embodiment of the present invention.

FIG. 3 is a sectional view of a further main part of the magnetic recording / reproducing apparatus according to the embodiment of the present invention.

FIG. 4 is a plan view showing a main part of a conventional magnetic recording / reproducing apparatus. BEST MODE FOR CARRYING OUT THE INVENTION

The best embodiment of the present invention will be described below. A magnetic recording / reproducing apparatus according to one embodiment of the present invention includes a chassis one substrate, a magnetic tape reel base, a head for exchanging information with the magnetic tape, and a first substrate fixed to the chassis substrate. A motor and a second motor, a tape opening mechanism for controlling the opening of the magnetic tape, a first driving force transmitting means for transmitting the driving force of the first motor, and the second motor. A second driving force transmitting means for transmitting the driving force of the second driving force. The reel base is installed to cover the first motor, the second motor drives the reel base, and the first motor drives the tape loading mechanism.

Particularly preferably, the magnetic recording / reproducing device further includes a reel base. The reel base is a supply reel base for supplying the tape, the further reel base is a take-up reel base for winding the tape, and the second motor is connected to the supply reel base. The take-up reel table is selectively driven.

Particularly preferably, the magnetic recording / reproducing apparatus further includes a motor outer frame body having one end fixed to the chassis, and a spindle installed on the motor outer frame body. The reel base is rotatably installed on the support shaft, and the reel base is installed so as to cover the motor outer frame.

More preferably, the first motor is a tape loading motor for selectively performing a tape loading operation and an anti-tape loading operation.

Particularly preferably, the magnetic recording / reproducing apparatus further includes a motor outer frame body having one end fixed to the chassis. The first driving force transmission means has a driving gear attached to the motor outer frame, and the first motor The driving gear is installed at a position close to each other, and the driving gear selectively performs a tape loading operation and an anti-tape loading operation.

Particularly preferably, the motor outer frame has a sliding surface facing a lower end of the reel base, and the reel base has an annular protrusion formed at a position facing the sliding surface. The projection is located at an interval on the sliding surface, and the projection is installed so as to be able to contact the sliding surface when the reel base is inclined.

Next, a typical embodiment of the present invention will be described more specifically with reference to FIGS. 1 to 3. FIG. 1 to 3, components that perform the same operations as those of the above-described conventional configuration are denoted by the same reference numerals, and detailed description thereof will be omitted.

1 to 3, a magnetic recording / reproducing apparatus according to the present embodiment includes a chassis substrate 30, a supply reel 1 as a reel base for a magnetic tape 10, and a take-up reel as a further reel base. A table 2, a supply reel 4, a take-up reel 5, a rotating head cylinder 8 as a head for exchanging information with the magnetic tape, and a first motor fixed to the chassis-to-substrate 30. Tape loading motor 15 as evening, capstan motor 12 as second motor, capstan 13 and pinch roller 14 and tape loading mechanism for controlling magnetic tape loading The motor includes first driving force transmitting means for transmitting the driving force of the first motor 15 and second driving force transmitting means for transmitting the driving force of the second motor 12. The reel base 1 is installed so as to cover the first motor 15, the second motor 12 drives the reel base 1, and the first motor 15 operates as the first driving force transmitting unit. The tape loading mechanism is driven via the tape loading mechanism. The tape loading mechanism and the first driving force transmitting means include an intermediate gear 19, a gear 18a, a gear 18, 18a, a 17, 16, a driving gear 9, an arm 6a, 6b, and a transmission. It has a lever 11, an arm 7a, 7b, and a loading post 6c, 7c. The second driving force transmitting means has a gear 1a. The supply reel base 1 is engaged with a supply reel 4 of a tape cassette (not shown). The take-up reel base 2 engages with the take-up reel 5.

The arms 6a, 6b, 7a, and 7b pull out the magnetic tape 10 in the tape force set at least at the time of recording and reproduction, and wind the tape around the rotary head cylinder 8 at a predetermined angle. It has loading means. The arms 6a, 6b, 7a, and 7b are configured to selectively perform a tape loading operation and an unloading operation by rotating the drive gear 9 in the forward and reverse directions.

A feature of the present embodiment is that a loading motor 15 as a first motor is arranged inside a supply reel table 1 as a reel table. That is, in FIGS. 1 and 2, a rigid cylindrical motor outer frame 25 is installed on the chassis substrate 30 and a mouthing motor 15 is incorporated inside the motor outer frame. Have been. The motor shaft 15 a of the loading motor 15 is fixed to the chassis substrate 30 so as to be perpendicular to the chassis substrate 30. The motor shaft 15 a penetrates the chassis substrate 30 and protrudes from the rear surface of the chassis substrate 30. The rotation of the loading module 15 is transmitted to a reduction mechanism composed of gears 18, 17 and 16 provided on the surface of the chassis substrate 30 via an intermediate gear 19 and a gear 18a. You. Further, the rotation is transmitted to the drive gear 9 rotatably mounted around the motor outer frame 25 through the speed reduction mechanism.

The rotation of the drive gear 9 is controlled by the arms 6a, 6b The toggle mechanism consisting of the arm 7a and 7b and the toggle mechanism consisting of the arms 7a and 7b are expanded and contracted to selectively perform the tape-producing operation and the unsealing operation.

The supply reel base 1 is rotatably mounted on a shaft 26 implanted at the center of the upper surface of the cylindrical motor outer frame 25 described above. 5 are arranged to cover the outer periphery.

A gear la is formed at the lower end of the supply reel table 1. As before, the rotational force of the capstan motor 12 as the second motor is selectively transmitted to this gear la via a transmission mechanism (not shown), and the supply reel base 1 rotates when necessary. Driven.

Also, the surface 25a of the motor outer frame 25 facing the lower end of the supply reel table 1 is configured to be a smooth sliding surface. Further, an annular projection 1b is formed on a portion of the supply reel table 1 facing the surface 25a. The surface 25a and the projection 1b are set so that a slight gap is generated during normal stable driving. That is, during normal stable driving, the surface 25a and the protrusion 1b are driven without contact. However, if the supply reel table 1 is inclined for some reason such as a sudden change in tape tension, the surface 25a and the projection 1b come into contact with each other as shown in FIG. As described above, the supply reel base 1 is configured not to be inclined,

As described above, according to the present invention, by disposing a module for driving other than the reel table, such as a loading mode, inside the reel table, the layout space of the motor itself is reduced, Further, the motor can be brought closer to the driven device, and as a result, the size of the device can be reduced. ,, Equipment can be simplified

Claims

The scope of the claims

1. A chassis board, a magnetic tape reel base, a head for exchanging information with the magnetic tape, a first module and a second module fixed to the chassis single board, And a driving force transmission mechanism,

The reel stand is installed so as to cover the first motor,

The second mode is a magnetic recording / reproducing apparatus for driving the reel base.

2. In claim 1, wherein the first motor has a drive shaft installed through the chassis substrate,

The driving force transmission mechanism is disposed on a back surface of the chassis substrate,

A magnetic recording / reproducing apparatus, wherein the driving force of the drive shaft is transmitted as a driving force of a tape loading mechanism that pulls out the magnetic tape to a predetermined recording position via the driving force transmission mechanism.

3. The motor vehicle according to claim 1, further comprising: a motor outer frame fixed at one end to the chassis;

The driving force transmitting means has a driving gear and a driven gear,

The reel base is rotatably attached to a support shaft implanted at the other end of the motor outer frame body,

The driven gear rotationally drives the reel base in accordance with the drive gear, has a rotation center coaxial with the support shaft, and is integrally fixed to a lower part of the reel base.

When the rotation center axis of the reel base is inclined by a predetermined angle with respect to the support shaft, the motor outer frame body slides on the lower end of the reel base to form a rotation center axis of the reel base. Has a sliding surface that prevents the A magnetic recording / reproducing apparatus.

4. The magnetic recording / reproducing apparatus according to claim 1, wherein the reel base is a supply reel base for supplying a tape when performing at least one of normal recording and reproducing. apparatus.

5. A chassis substrate, a magnetic tape reel base, a head for exchanging information with the magnetic tape, a first module and a second module fixed to the chassis substrate, and the magnetic element. A tape opening mechanism for controlling the loading of the tape; a first driving power transmission means for transmitting the driving force of the first motor; and a second driving force for transmitting the driving force of the second motor. With transmission means,

The reel stand is installed so as to cover the first module,

The second motor drives the reel base,

The magnetic recording / reproducing device, wherein the first motor drives the tape loading mechanism.

6. The method according to claim 5, further comprising a further reel base, the reel base being a supply reel for supplying the tape, and the further reel base being a take-up reel for winding the tape. And

The magnetic recording / reproducing apparatus, wherein the second motor selectively drives the supply reel table and the take-up reel table.

7. In Claim 5, further comprising: a motor outer frame fixed at one end to the chassis; and a spindle installed on the motor outer frame, wherein the reel base is It is installed rotatably on the spindle,

The magnetic recording / reproducing apparatus, wherein the reel base is provided so as to cover the motor outer frame.

8. The magnetic recording system according to claim 5, wherein the first motor is a tape loading mode for selectively performing a tape loading operation and an anti-tape loading operation. Playback device.

9. The motor vehicle according to claim 5, further comprising a motor outer frame fixed at one end to the chassis.

The first driving force transmitting means has a driving gear attached to a lower side of the motor outer frame,

Wherein the first motor and the drive gear are installed at positions close to each other, and wherein the drive gear selectively performs a tape opening operation and an anti-tape opening operation. apparatus.

10. The motor outer frame according to claim 5, wherein the motor outer frame has a sliding surface facing a lower end of the reel base.

The reel base has an annular projection formed at a position facing the sliding surface, and the projection is located at an interval on the sliding surface,

The magnetic recording / reproducing apparatus according to claim 1, wherein the protrusion is provided so as to be able to contact the sliding surface when the reel base is inclined.