JPH0266766A - Tape recorder device - Google Patents

Abstract

PURPOSE:To protection, the tape recorder device and to attain low energy consumption and miniaturization of the device by regulating a tape path near the tape extracting port of the winding reel side of a tape cassette in the path allowable area regardless of the travelling mode of the tape. CONSTITUTION:At the time of stopping a tape or at the time of fast forwarding and rewinding, a pinch roller 39 and a guide roller 43 are moved to the inside from the time of recording and reproducing. At this time, the tape path is formed by guide rollers 26b and 43 and a winding reel 20b. For a roller 43, the position is regulated by a guide groove 42a of a supporting lever 42 and a guide pin 41 inserted into the groove and the tape path near the tape extracting port at a reel 20b side is housed in the allowable area. Consequently, the tape tension at the time of stopping is weakened, the slip of the rotary head is not necessary and the guide post near the extraction port is also not necessary. Thus, the protection, low energy consumption and miniaturization of the tape can be attained.

Description

[Detailed description of the invention] [Purpose of the invention] (Industrial application field) The present invention relates to a tape recorder device.

(Prior Art) Tape recorder devices that record and play back audio and visual video cassette tapes have become widespread, and recently, digital audio tape cassettes (hereinafter referred to as DAT cassettes) have been used to Tape recorder devices capable of recording and reproducing signals have appeared.

The above-mentioned DAT cassette is approximately half the size of a conventional compact cassette tape, and has a lid and a slider on the cassette body.The lid covers the tape surface, and the slider covers the hub hole, making it ideal for tape recorders. Except when the cassette is set in the cassette, it has a sealed structure to prevent dirt and dust from entering the cassette, which can cause dropouts in digital recording.

When this DAT cassette is set in a tape recorder, the slider is moved to expose the knob/hole, the lid is opened, and the tape is engaged with guides and rollers, and these kites and rollers cause the tape to is wound around a rotating head drum for digital recording and playback.

Therefore, in the tape recorder device described above, the DAT
A loading mechanism is used to automatically set the cassette onto the rotating head drum.

This loading mechanism is installed in a DAT cassette or cassette holder by inserting the DAT cassette into the cassette insertion slot of the tape recorder, and the DAT cassette installed in the cassette holder is loaded onto the drive mechanism provided inside the tape recorder. The slider is first moved in the opening direction, then the lid is opened,
Thereafter, the cassette holder is lowered and the DAT cassette is mounted on the drive mechanism. Thereafter, the tape is pulled out by a tape pull-out member and wound around a rotating head drum, and digital recording/reproduction is performed. Also, fast forwarding and rewinding of the tape is performed while the tape is wound around the rotating head drum.

In tape recorder devices using such a rope ink mechanism, in order to perform high-quality digital recording and playback without tracking loss, the tape is pressed against the lead of a rotating head drum while applying a predetermined tension to the tape. Ensures running stability. Furthermore, when fast forwarding or rewinding a tape, it is common to change the tape path so that the tension on the tape is lower than during recording or playback, thereby reducing the angle at which the tape is wound around the fixed post. Furthermore, when stopping the tape, in order to prevent the tape from sticking to the rotating head drum due to dew condensation, or from clogging the head due to transfer of magnetic powder on the tape to the rotating head, the The tape path is changed to lower the tape tension, or the rotating head drum is idled.

2. Description of the Related Art Conventionally, there is a tape recorder of the type shown in FIG. 3 as a tape recorder equipped with a means for changing the tension of a tape using a simple mechanism.

In this type of tape recorder device, a pinch lever 3 having a pinch roller rotatably mounted on a fixed shaft and a rotary roller 2 is rotatably attached to a main chassis (not shown). Further, when the tape cassette 4 is installed, a tape take-up reel 5 side near the tape draw-out opening (not shown) is provided to guide the tape 6 to the tape pass permissible area and to prevent fluctuations in the height of the tape 6. A fixed kite post 7 is provided for control.

By changing the position of the pinch lever 3 during recording/playback and when fast forwarding/rewinding or stopping the tape, the tape path during recording/playback and the tape path during fast forwarding/rewinding or stopping the tape can be changed. The tension of the tape during recording and playback and the tension of the tape when fast forwarding, rewinding, or stopping the tape are changed.

In other words, during recording and playback, the pinch lever 3 is connected to a capstan shaft 8 provided at a predetermined position on the main chassis.
The tape 6 is moved so that it is in pressure contact with the pinch roller].

At this time, the tape is pulled out from the tape supply reel 12 side by a slider 1a having a guide roller 9a and a guide pin 10a, and from the tape take-up reel 5 side by a slider 1-b having a guide roller 9b and a guide pin 10b. The tape 6 is further drawn out to a tape drawing completion position determined by catchers 4a and 14b fixedly arranged so as to sandwich the rotary head drum 13 therebetween. The drawn-out tape 6 is transferred to the fixed guide post 15 disposed between the tape supply reel 12 and the tape-drawing completion position of the slider la, the guide roller 9a and guide pin 10a of the slider la, the rotating head drum 13, and the slider 11b. guide pin 10
b and guide roller 9b1 are guided by a pinch roller, capstan shaft 8, rotary roller 2, and fixed guide post 7 to form a tape path during recording and reproduction. In addition, the fixed guide post 15 and the kite roller 9
A contact pin] 7 of the tension control arm 16 is in contact with the tape 6 between the tension control arm 16 and the tension control arm 16.

On the other hand, the pinch lever 3 during fast forwarding/rewinding or when stopping the tape is as shown by the dashed line in FIG.
pinch roller] is rotating away from the capstan shaft 8.

Therefore, the tape path during fast forwarding/rewinding or when the tape is stopped shifts to the inside of the tape path during recording/reproduction between the guide roller 9b and the fixed guide post 7. Therefore, during the tape pass during fast forwarding, rewinding, or when the tape is stopped, the wrapping angle of the tape 6 around the fixed guide post l-7 is reduced, and the tape 6 is separated from the capstan shaft 8, so that the tape running load is reduced. The pressing force of the tape 6 against the rotating head drum] 3 can also be weakened when the recording/reproducing state shifts to the tape stop state.

Then, a fixed guide is installed so that the tape path between the rotating roller 2 and the tape take-up reel 5 is within the tape path permissible area during recording/playback, fast forwarding/rewinding, or when stopping the tape. The tape is kited by post 7.

In addition, in the tape recorder device in the state shown in FIG.
Since the winding angle of the tape 6 on the guide roller 9b is small, the force with which the tape 6 is pressed onto the rotary head drum 13 by the guide roller 9b is insufficient, making it difficult to run the tape 6 stably. becomes. Therefore, in reality, the tape draw-out completion positions of the sliders lla and llb and the arrangement position of the rotary head drum 13 are moved further away from the tape cassette 4 than the positions shown in FIG.
The winding angle of the tape 6 around the guide roller 9b is increased.

In a tape recorder device that uses such a mechanism to change the tape tension, it is not necessary to idle the rotary head when the tape is stopped, so that power consumption can be reduced.

Incidentally, as tape recorder devices using DAT cassettes become more widespread, it is desired that the devices be made smaller, lighter, and thinner.

However, in a tape recorder device of the type that changes the tape path only by moving a pinch lever equipped with a pinch roller and a rotating roller, it is difficult to guide the tape path near the tape outlet on the tape take-up reel side into the tape path allowable area. Requires a fixed guide post for use.

For this reason, the tape unwinding completion position of the slider that pulls out the tape and the position of the rotary head drum must be kept at least a certain distance away from the tape cassette, making it difficult to make the device smaller, lighter, and thinner. There was a certain issue.

(Problems to be Solved by the Invention) As described above, in a tape recorder device of the type in which the tape path is changed only by moving a pinch lever equipped with a pinch roller and a rotating roller, it is possible to reduce the power consumption of the device by using a simple mechanism. In order to achieve this, the tape drawing completion position of the slider that pulls out the tape and the position of the rotating head must be at least a certain distance away from the tape cassette installation position, and the device must be made smaller, lighter, and thinner. The problem was that it was difficult.

This invention is intended to solve the above-mentioned problems, and provides a tape recorder that can reduce the power consumption of the device with a simple mechanism, and can easily make the device smaller, lighter, and thinner. The purpose is to provide equipment.

[Structure of the Invention] (Means for Solving the Problems) This invention draws out a tape from a tape cassette with a tape drawer member to form a predetermined tape path, and records and records the tape with a rotating head drum equipped with a magnetic head.
A tape recorder device that performs playback has a pinch roller that is pressed against the capstan shaft through the tape during recording and playback, and is separated from the capstan shaft when stopping the tape and when fast forwarding or rewinding, and is used to wind the tape of a tape cassette. The tape path near the tape outlet on the reel side is configured by a tape guide member that moves as the pinch roller approaches and moves away from the capstan shaft, and a tape kite member position regulation mechanism is used. The position of this tape guide member in each tape running mode is always restricted to a tape path between the tape guide member and the tape outlet or a position range within a tape path permissible area.

(Function) In this invention, the pinch roller, which is pressed against the capstan shaft through the tape during recording and reproduction, is separated from the capstan shaft when the tape is stopped and when fast forwarding or rewinding. In addition, the tape guide member, which is moved as the pinch roller approaches and moves away from the capstan shaft, and the tape guide member position regulation mechanism that regulates the position of the tape guide member, allow the tape The tape path near the tape outlet on the tape take-up reel side of the cassette is always within the tape pass permissible area regardless of the tape running mode, and the running system post is placed inside when the tape is stopped than during recording or playback. This weakens the tape tension.

Therefore, since there is no need to idle the rotating head when the tape is stopped, it is possible to reduce the power consumption of the device. This eliminates the need for fixed guide posts, and the capsta shaft and rotary head drum can be moved closer to the tape cassette, allowing for a more compact device.

(Example) Embodiments of the present invention will be described below based on the drawings.

FIG. 1 is a diagram for explaining a tape recorder device according to an embodiment of the present invention.

As shown in the figure, a tape supply reel 20a and a tape take-up reel 20b, each rotatable by a drive mechanism, are disposed on a main chassis (not shown). These tape supply reel 20a and tape take-up reel 2
On the main chassis at a predetermined distance from 0b, there is a rotating head drum 2 for recording and reproducing information on the tape.
1 is arranged.

Further, in the main chassis between the tape supply reel 20a and the tape take-up reel 20b and the rotating head drum 21, a tape 22 is pulled out from a DAT cassette (not shown) and wound around the rotating head drum 21 (=J). Two guide grooves (not shown) are provided for guiding the sliders 23a and 23b, which are tape drawers, from the DAT cassette to the sides of the rotary head drum 21.

Catchers 24a and 24b are fixedly arranged near the ends of these guide grooves on the side of each rotary head drum to determine the final pull-out position of each tape pull-out slider.

The sliders 23a, 23b include a base plate 25a, 325b, and guide rollers 26a, 26b and guide pins 27a, 27b provided on each base plate 25a, 25b. Loading links 28a, 28 are provided at the tips of the base plates 25a, 25b via the main chassis.
One end of loading arms 29a, 29b is rotatably attached to one end of loading links 28a, 28b.

At the other ends of the loading arms 29a, 29b are rope ink gears 30a, 30 that mesh with each other and are rotatable.
b is fixedly disposed, and a gear 32 formed at one end of a loading lever 31 meshes with the loading gear 30a.

An actuating projection (not shown) is provided at the other end of the loader damper 31, and this projection is connected to a control cam 33 that is rotationally driven in the directions of arrows A, , and A2 by a motor (not shown). is inserted into a loading control groove (not shown). The robin breaker 31 is rotated in the directions of arrows B1 and B2 by the rotation of the control cam 33.

The control cam 33 has a control groove for mode switching (not shown) in addition to a control groove for loading, and this control groove for mode switching has a control pin (not shown) of the control slider 34. is inserted.

The control slider 34 moves in the direction of arrow C by the rotation of the control cam 33.
It is said to be movable in the 1 and C2 directions.

Further, a control groove 35 for controlling the pinch roller is formed in the control slider 34, and a control pin 36a of a pinch roller preload lever 36 is engaged with this control groove 35. The pinch roller preload lever 36 is rotatably attached to a rotating shaft 37 provided on the main shear.

A bent piece 38 a of a pinch lever 38 rotatably supported by a rotating shaft 37 is locked to the pinch roller preload lever 36 . And the pinch roller preload lever 36 is
A preload spring (not shown) disposed on the rotating shaft 37 allows
The pinch lever 38 is preloaded.

A pinch roller 39 is rotatably disposed on the pinch lever 38, and when the tape 22 is pulled out by the tape drawer sliders 23a and 23b, the three pinch rollers connect the capstan shaft via the tape 22. 40.

Further, a guide protrusion 41 is formed on the pinch lever 38, and this guide protrusion 41 is connected to the guide roller support lever 4.
The second guide groove 42a is engaged with the second guide groove 42a. The guide roller support lever 42 is rotatably disposed on the main chassis, and a guide roller 43 for guiding the tape 22 is disposed on this kite roller support lever 42.

In this embodiment, the guide roller 43 corresponds to the tape guide member, and the pinch lever 38 having the guide pin 41 and the guide roller support lever 42 having the guide/g42a constitute a tape guide 1 member position regulating mechanism.

In addition, near the tape draw-out completion position of the slider 23a, there is a fixed guide post 44 that forms a tape path between the guide roller 26a provided on the slider 23a and the tape draw-out opening (not shown) on the tape supply reel 2Oa side. It is arranged. Further, a contact pin 46 provided on the tension control arm 45 is in contact with the tape between the guide roller 26a and the fixed guide post 44.

Next, the operation of the tape recorder device configured as described above will be explained.

First, a DAT cassette (not shown) is attached to a cassette holder (not shown). At this time, the slider (not shown) of the DAT cassette is released by the claw of the cassette holder, and the sliders 23a and 23b are placed on the back side of the tape 22.

Next, a motor (not shown) that rotationally drives the control cam 33 is rotated to rotate the control cam 33 in the direction of arrow A1,
The rope ink lever 31 rotates in the direction of arrow B1.

As the loading lever 31 rotates in the direction of arrow B1, the loading gears 30a and 30b rotate, and the sliders 23a and 23b move to the sides of the rotating head drum 2 along guide grooves provided in the main chassis. , and are caught by the catchers 24a and 24b.

Also, at the same time as the above operation, the control slider 34 moves to the arrow 02.
direction and move the pinch lever 38 to the capstan shaft 4.
Move it towards 0. This pin] 7 By the movement of the tilter 38, the pinch roller 39 is pressed against the capstan shaft 40 via the tape 22, and the guide roller 43 moves the tape path near the tape outlet on the tape winding reel 2Ob side to the tape path. Move to a position within the permissible area.

As a result, as shown in FIG.
Tape 22 pulled out by slider 23a from 0a side
, fixed guide post 44, tension control arm 45
contact pin 46, guide roller 26a of slider 23a
and comes into contact with the rotating head drum 21 via the guide pin 27a. Further, the tape 22 pulled out from the tape take-up reel 20b side by the slider 23b is transferred to the guide roller 4.
3. It contacts the rotary head drum 21 via the pinch roller 39, capstan shaft 40, guide roller 26b of the slider 23b, and guide pin 27b.

In this state, when the tape is driven for recording or reproduction, the capstan shaft 40 rotates and the tape 22 pressed by the pinch roller 39 is driven. At the same time, the tape supply reel 20a and the tape take-up reel 20b rotate, and the tape 22 is wound from the tape supply reel 20a through the rotary head drum 21 onto the tape take-up reel 20b.

When the tape is stopped or fast-forwarded or rewound, the pinch lever 38 is rotated to move the pinch roller 39 and guide roller 43 further inside the tape path than the above-mentioned positions during recording and reproduction. At this time, the slider 23
The tape path between the guide roller 26b provided at the guide roller 26b and the tape drawer opening on the tape take-up reel 2Ob side is formed by the guide roller 26b, the guide roller 43, and the tape take-up reel 2Ob.
0b. Further, the position of the power idler 43 is regulated by a guide groove 42a provided on the kite roller support lever 42 and a guide pin 41 provided on the pinch lever and inserted into the kite groove 42a, and the position of the force idler 43 is regulated by a guide groove 42a provided on the kite roller support lever 42 and a guide pin 41 provided on the pinch lever and inserted into this kite groove 42a. The tape pass near the tape outlet on the 2Ob side is located within the tape pass permissible area.

The tape pass permissible area here means that the tape take-up reel is allowed to pass without the tape 22 coming into contact with the wall of the tape outlet 51 on the tape take-up reel 2Ob side of the tape cassette 50, as shown by the shaded area in FIG. This is an area where the tape 22 can be wound up by the tape take-up reel 20b or the tape 22 can be pulled out from the tape take-up reel 20b.

In FIG. 2, the same reference numerals as in FIG. 1 are given to the sliding portion +4 that is common to FIG. 1, and the explanation thereof will be omitted.

As explained above, in the tape recorder device of this embodiment, the tape tension during fast forwarding/rewinding or when stopping the tape can be lowered than during recording/playback.
At the same time, without placing a fixed guide post near the tape take-up opening on the tape take-up reel side when a tape cassette is installed, the tape path near the tape take-up reel side can be easily controlled without changing the tape running mode. , the tape can be guided within the permissible area.

Therefore, there is no need to idle the rotary head drum even when the tape is stopped, and a compact tape recorder device with low power consumption can be obtained.

Furthermore, by making the tape stop mode and the tape fast forward mode the same, it is possible to simplify the mechanism and reduce costs.

Note that the tape guide member and tape guide member position regulating mechanism used in the tape recorder device of the present invention are not limited to the members and mechanisms illustrated in the embodiments, and any material can be used as long as the same effect can be obtained. It may be a member or a mechanism. Further, in the embodiments described above, a tape recorder apparatus using a DAT cassette was particularly described, but it goes without saying that the present invention may be applied to a tape recorder apparatus using a conventionally used video tape.

[Effects of the Invention] As explained above, according to the present invention, it is possible to obtain a tape recorder device that protects the tape and magnetic head when the tape is stopped, reduces power consumption, and achieves a reduction in size and a simple mechanism. Can be done.

[Brief explanation of the drawing]

FIG. 1 is a diagram for explaining a tape recorder device according to an embodiment of the present invention, FIG. 2 is a diagram for explaining a tape pass permissible area, and FIG. 3 is a diagram for explaining an example of a conventional tape recorder device. This is a diagram for 38...Pinch lever 39...Pinch roller, 4
0... Capstan shaft, 41... Guide pin, 42
...Guide roller support lever 42a...Guide groove, 4
3. Guy] Laura. Applicant: Toshiba Corporation

Claims (1)

[Scope of Claims] A tape recorder device in which a tape is pulled out from a tape cassette by a tape drawer member to form a predetermined tape path, and information is recorded and played back by a rotating head drum equipped with a magnetic head. a pinch roller that is pressed against the capstan shaft through the tape and separated from the capstan shaft when the tape is stopped, fast-forwarded or rewinded; A tape guide member that is moved in accordance with the separation operation from the tape cassette and constitutes a tape path in the vicinity of the tape take-out opening on the tape take-up reel side of the tape cassette; A tape recorder device comprising: a tape guide member position regulating mechanism that regulates a tape path between the guide member and the tape outlet to a position range within a tape pass permissible region.