JPH01102761A - Magnetic recording/reproducing device - Google Patents

Abstract

PURPOSE:To stably load a tape cassette by moving a reel driving means and a loading means in accordance with a cassette by a detecting means. CONSTITUTION:When the completion of moving the reel driving means 13 and the loading means 12 in accordance with the cassette is detected by the detecting means 15 prior to the completion of moving a cassette housing base 300 in its 1st direction, the cassette housing base 300 is moved in its 2nd direction immediately after completing the movement in the 1st direction, and the cassette is loaded into a prescribed position by a cassette loading/standby means 16. And, when the completion of moving the reel driving means 13 and the loading means 12 is not detected yet even after completing the movement of the cassette housing base 300 in the 1st direction, the cassette housing base 300 is on standby in its completing position of the movement in the 1st direction, and after the completion of moving the reel driving means 13 and the loading means 12 is detected by the detecting means 15, the cassette housing base is moved in the 2nd direction to let the cassette be loaded in the prescribed position. By this method, the tape cassette can stably be loaded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic recording/reproducing apparatus, and more particularly to a magnetic recording/reproducing apparatus which can directly mount any of a plurality of types of tape cassettes having different shapes.

BACKGROUND OF THE INVENTION Magnetic recording and recording devices for video signals using tape cassettes are widely used. This type of magnetic recording/reproducing device is available in a plurality of standards, and although devices of different standards are not compatible, devices that follow the same standard are compatible. In other words, devices within the same standard are manufactured by different manufacturers.

The formats of tape cassettes (for example, the tape cassette shown in FIG. 12(A)) and devices have been defined so that recording/reproduction can be performed even with different devices.

However, in recent years, small devices such as magnetic recording bags that are integrated into television cameras have become popular, and in order to make the devices smaller, these devices retain the same format as the standard cassettes mentioned above. The distance between the take-up reel and the supply reel is narrower,
A small cassette that is about half the size of a standard cassette (
For example, recording/reproduction is performed using a tape cassette shown in FIG. 12(B). Also, small cassettes can be recorded/played by magnetic recording/playback devices that use standard cassettes, but in this case, since the loading circuit, reel transmission mechanism, size, etc. of small cassette 1 are different from standard cassettes, it is not possible to record/play back directly to a magnetic recording/playback device using a standard cassette. I was unable to attach it to my computer, so I had to use an adapter. Therefore, from the viewpoint of operability, there has been a demand for a magnetic recording/reproducing apparatus that can directly attach a standard cassette and a small cassette to record/reproduce without using an adapter.

Problems to be Solved by the Invention However, standard cassettes and small cassettes have reels (Fig. 12 (A) 4°5, Fig. 12 (B)) as shown in Fig. 12.
)10.11) Spacing and reel drive means (small cassette (
In the case of FIG. 12(B)), not only is the take-up reel 10 driven via a gear on the lower flange, but also there is a notch in the cassette surface that fits with the loading means for pulling out the tape from the cassette (FIG. 12(A)). )2.3, Figure 12 (B)
8.9) Since the position and shape of cassettes are different, it is necessary to move around the reel and around loading depending on the cassette to be installed. For this reason, if the timing between movement around the reel and loading and the operation of installing the cassette in a predetermined position is not appropriate, the cassette may damage the equipment around the reel and loading. There was a point.

The present invention has been made in view of the above points, and provides a magnetic recording/playback device that can directly attach cassettes of both sizes to the device and stably attach them without damaging the tape or the device. The purpose is to provide.

Means for Solving the Problems FIG. 1 shows a block diagram of the principle of the present invention. In the present invention, a standard cassette or a small cassette is placed directly on a cassette storage stand pulled out to the front of the main body, and the cassette storage stand is moved in a first direction, pulled into the main body, and positioned above a predetermined mounting position. After that, the cassette placed on the cassette storage table is moved in the second direction and installed at a predetermined mounting position, and the tape inside the cassette is pulled out by the loading means and placed in a predetermined angle range on the guide drum having a head. A magnetic recording/reproducing device that forms a tape path that wraps around the tape and drives the reel of a cassette with a reel drive means to perform recording/reproduction. a moving means that moves the loading means to a predetermined fitting position where it fits with the tape drawer notch of the cassette as the cassette storage table moves in the first direction; a detection means for detecting that the reel driving means and the loading means have completed their movement according to the cassette; and a detection means for detecting that the reel driving means and the loading means have completed their movement according to the cassette while the cassette storage table is moving in the first direction. is detected by the detection means, the cassette storage stand is moved continuously from the first direction to the second direction, the cassette is mounted at a predetermined mounting position, and the detection means indicates that the movement has been completed. When the cassette storage table is not detected, the cassette storage table is placed on standby at the end position of movement in the first direction, and after the movement is completed, the cassette storage table is moved in the second direction and the cassette is installed at a predetermined installation position. and standby means.

The operation moving means 14 switches the reel drive means 13 to a reel stand that fits on the reel of a standard or small cassette, and also moves the loading means 12 to a predetermined fitting position that fits with the tape drawer notch of the standard or small cassette. Move the group of balls for drawing out the tape. The detection means 15 detects that the reel driving means 13 has been switched to the reel stand that fits into the reel of the cassette, and that the group of tape drawing balls of the loading means 12 has fitted into the tape drawing notch of the cassette. Detects movement to a certain position.

To install a cassette, place the standard or small cassette directly on the cassette storage stand pulled out to the front of the main unit, move the cassette storage stand in the first direction, pull it into the main body, and position it above the predetermined installation position. Thereafter, the cassette is moved to a second direction and the cassette is mounted at a predetermined mounting position. At this time, the cassette is installed/
When the detection means 15 detects completion of movement of the reel driving means 13 and the loading means 12 according to the cassette before the cassette storage table finishes moving in the first direction, the standby means 16 moves the cassette storage table in the first direction. Immediately after the movement is completed, the cassette is moved in the second direction to mount the cassette at a predetermined mounting position, and even after the cassette storage table has finished moving in the first direction, the detection means 15 responds to the cassette of the reel driving means 13 and the loading means 12. If the completion of the movement in the first direction is not detected, the cassette storage stand waits at the end position of the movement in the first direction;
After the detecting means 15 detects the completion of movement of the reel driving means 13 and the loading means 12, the cassette is moved in the second direction to mount the cassette at a predetermined mounting position.

Embodiment FIGS. 2 to 7 show the Ikjiura style of the magnetic recording/reproducing apparatus according to the present invention. FIG. 2 shows a plan and front view of the cassette loading device. In the figure, 100 is a housing part, 200 is a table, 300 is a cassette storage part, and 400 is a cassette loading device drive part.

The housing part 100 includes left and right side plates 101, 102, and a top plate 1.
03 and a bottom plate 104. Left and right side plates 101.10
2 are provided with guide grooves in the vertical direction and support grooves on the left and right sides of the guide grooves at positions facing each other, and upper and lower guide rows 51 are provided at positions opposite to each other at the front and rear of the inner surface thereof.
05.106 is provided.

The table 200 has left and right side plates 201, 202 and connecting plates 203 and 204 which connect and fix the paper, and are formed into a substantially mouth shape. Concave guide rails 205 are formed on both side plates 201 and 202.

The table 200 places the lower surface of the side plates 201 and 202 on the guide rollers 105 of the housing part 100, and the guide rails 205 are fitted into the guide rows 5106, and the housing part 1
00 so as to be slidable in the horizontal direction. Further, a rack 206 is formed on the lower surface of the left and right side plates 201 and 202 of the table 200, and a gear group 40 of the drive unit 400 is mounted.
A second pinion gear and a sub-pinion gear (not shown) are in mesh with each other to move the table 200 in the horizontal direction.

The cassette storage stand 300 uses standard cassettes! l! A standard cassette storage section 301 is formed in which a small cassette is placed, and a small cassette storage section 302 is formed by forming a part of the standard cassette storage section 301 into a concave shape to place a small cassette. A notch 303 for the capstan and reel disk fitting holes 304 and 305 are provided in the center. Furthermore, in the center of both sides of the bottom of the cassette storage table 300, there is an engaging part 306 equipped with a pin that engages with a U groove of a locking part 404 (FIG. 3) of a lowering member 403 that can be moved up and down by a drive part 400. It is set up.

Roughly, the standard cassette is stored in the standard cassette storage part 301 on the top surface of the cassette storage stand 300, and the standard cassette is stored in the small cassette storage part 30.
2 are provided with detection switches 307 and 308 for detecting whether the small cassette is correctly stored.

The cassette mounting device drive section 400 is composed of a motor 401 and a plurality of gear groups 402, and controls the horizontal movement of the table 200 and the vertical movement of the cassette storage stand 300 by the rotation angle of the main gear of the gear group 402.

A sensor for detecting the rotation angle is attached to the main gear, and detects the 30° 0 position of the cassette storage stand. The movement of the table 200 and the cassette storage stand 30.O is such that only the table 200 moves in the horizontal direction in a certain rotation angle range of the main gear, and the cassette storage stand 300 moves in the vertical direction in other rotation angle ranges. Controlled by gears and cams.

FIG. 4 shows a plan and side view of the moving device around the reel. In the figure, 500 indicates a main chassis, and 600 indicates a small chassis.

The main chassis 500 has standard cassette positioning reference pins 501a and 501b on the left and right sides of the back, standard cassette height position reference bins 502a and 502b on the front left and right sides, a standard cassette reel brake release bin 503, and a supply reel disc 504. A take reel disk 505 is provided.

At the bottom of the main chassis 500, a small chassis 600 having a substantially mouth-shaped shape is provided, and on the small chassis 600 are reference bins 601a and 601b for positioning small cassettes.
, small cassette height position reference bins 602a, 602b
, a lower gear 603a that can mesh with a gear part formed on the outer periphery of the take-up reel disk 505 provided on the main chassis 500, and an upper part that can mesh with a gear part formed on the outer periphery of the take-up reel of the small cassette. An intermediate gear 603 consisting of a gear 603b is provided. Above bottle 6
01,602, intermediate gear 603 is main chassis 500
A hole 506a provided in the hole 506a.

506b is configured to penetrate into the upper surface of the main chassis 500.

Further, the small chassis 600 is provided with up-down pars 604 rotatably supported at its intermediate portion at the front and rear on both the left and right sides. The up-down par 604 has one end connected to a small chassis and the other end connected to the front and back by a connecting bar 605. Further, among the up-down pars 604 provided on the front and rear sides of the left and right sides, the up-down pars 604 on the near side are connected by a connecting shaft 606 so that driving force is evenly applied to the left and right sides. The up-down par 604 is driven by a motor provided at the bottom of the main chassis 500 and a plurality of gear groups. Incidentally, among the plurality of gear groups, the main gear is provided with a sensor that detects a rotation angle corresponding to each position, and the vertical movement of the small chassis 600 is controlled based on this rotation angle.

FIG. 5 shows a plan view of the loading area. In the figure, 70
0 indicates the main chassis, and 800 indicates the tape guide drum. The tape guide drum 800 has a magnetic head for recording/reproducing.

The main chassis 700 has a tape supply side guide groove 701a on the left side of the tape guide drum 800, and a tape winding side guide groove 701b on the right side.
00, a left ball base 704a has a vertical guide roller 702a and an inclined ball 703a installed therein, and a right ball base 704b has a vertical guide roller 702b and an inclined ball 703b installed in the right guide groove 701b, similar to the left ball base. It is provided. The main chassis 700 also includes an idle ball 705, a half-loading ball 706, a guard ball 707, for pulling out the magnetic tape from the cassette to the position required for each operation.
Tension balls 708 are each provided on an arm rotatably supported by a shaft in mesh with a driving means including a motor, a plurality of gear groups, etc.

When the standard cassette is attached, the above balls move to the state shown in FIG. 5 so as to fit into the loading notches 2 and 3 of the standard cassette 1 shown in FIG. 12(A), and when the small cassette is attached. At this time, it moves to the state shown in FIG. 6 so as to fit into the loading notch 8.9 of the small cassette shown in FIG. 12(B). Note that movement of the -ball groups to respective positions is performed by a motor, a plurality of gear groups, etc. (not shown) provided on the main chassis 700. This is because the rotation angle is detected by a sensor that detects the rotation angle provided on the main gear in the gear group, and the main gear stops at the rotation angle corresponding to each state.

The operation of each of the above-mentioned devices is controlled by a control device composed of, for example, a microcomputer.

Next, the operation of this embodiment will be explained. First, when the table 200 is retracted into the main body without a cassette, the cassette storage section 300 is held with the bin engaged with the U groove of the locking section of the lowering member 403, and the loading device is in the standard cassette position. The reel drive system is also held at the standard cassette position (FIG. 4(C)). Table 20 is opened by operating the oven key.
0 is pulled out and the table 200 is stored in the main body without placing a cassette, the motor 401 of the cassette mounting device 4 rotates the main gear in an angular range that horizontally moves the table 200 (in the first direction) by key operation. . At this time, the loading device and reel drive system do not move (
Figure 8(A)).

In addition, when the table 200 is pulled out, if the standard cassette 1 is placed on the cassette storage stand 300 and the table is pulled in again, the cassette storage stand reel drive system does not move, and the detection switch on the table 300 of the cassette loading capacity is 307
detects that the standard cassette 1 has been loaded, the loading device and the puller 200 are pulled in horizontally, and the cassette storage table 300 is further moved vertically downward and the standard cassette 1 is stored in a predetermined position. (Figure 8(B)). When storing the table 200 by placing the small cassette 7 at a predetermined position on the cassette storage stand 300 of the table 200 that has been pulled out, the detection switch 308 on the cassette storage stand 300 indicates that the small cassette 7 has been placed. is detected, and at the same time as the table 200 is drawn in, the loading device and reel drive system start moving to fit the small cassette 7. At this time, if the horizontal movement of the table 200 moves faster than the movement of the loading device and reel drive system, the cassette storage table 300 will move vertically downward (second direction) after the movement of the loading device and reel drive system is completed. The movement is started and the small cassette 7 is stored in a predetermined position (FIG. 8(C)).

Next, the operation of each device from the state in which the standard cassette 1 is stored will be explained. When taking out the standard cassette 1 from a predetermined position inside the main body, by operating the oven key, the cassette storage stand 300 moves vertically upward, and the table 20G moves horizontally and is pulled out from the main body. The cassette can be taken out. Shikaru Yu, by operating the close key, table 20
0 moves horizontally and is drawn into the main body. At this time, the loading device and reel drive system do not move (Figure 9 (
A)).

In addition, if you want to install the standard cassette 1 again after taking out the standard cassette 1, operate the oven key, pull out the table 200 outside the main body, replace the cassette, and operate the close key to open the table 200.
00 moves in the horizontal direction (first direction), and the cassette storage stand 300 moves vertically downward, so that the standard cassette 1 is stored in a predetermined position. At this time, the loading device and reel drive system remain in the standard cassette position (FIG. 9(B)).

In addition, when installing the small cassette 7 after taking out the standard power cellars 1 to 1, after pulling out the table 20G outside the main body as described above, replacing the standard cassette 1 and the small cassette 7, and operating the close key, the table 20G is drawn into the body. At this time, the loading device and reel drive system are in the standard cassette position, so table 2
The movement to the small cassette position is started at the same time as the table 200 is drawn in, but if the loading device and reel drive system have not yet completed moving even after the table 200 is drawn in, the vertical movement of the cassette storage table is stopped, and the cassette storage table 200 is stopped moving vertically.
- After the movement of the loading device and the reel drive system is completed, the small cassette 7 is moved vertically downward (in the second direction) and stored in a predetermined position (FIG. 9(C)).

Next, the operation of each device from the state in which the small cassette 7 is housed in the device will be explained. As with the standard cassette 1, operate the oven key to pull out the table 200 outside the main body.
Take out the small cassette 7.

At this time, the loading device and reel drive system are in the small cassette position. Next, operate the close key,
When the table 200 is pulled in, the loading device and reel drive system move to the standard cassette position (10th
Figure (A)).

In addition, after removing the small cassette 7, the standard cassette 1
When loading the cassette, the loading device and reel drive system start moving from the small cassette position to the standard cassette position at the same time as the close key is operated. At this time, if the movement of the loading device and the reel drive system is not completed even though the retraction of the table 200 is completed, the vertical downward movement of the cassette storage stand 300 is suspended, and the movement of the loading device and the reel drive system is suspended. After the cassette storage table 300 is completed, the cassette storage stand 300 starts moving and the standard cassette 1
is stored in a predetermined position (Fig. 10(B)).

Further, when storing the small cassette 7 again after taking out the small cassette 7, only the table 200 and the set storage stand 300 move, and the loading device and reel drive system remain in the small cassette position and do not move (10th
Figure (C)).

In addition, the cassette stored in the predetermined storage position (Fig. 4 (
B), (C), FIGS. 5 and 6), the magnetic tape 6 is placed on the guide drum 800 as shown in FIG. 7(A) at the same time as it is stored.
It will be pulled out to a position where it will not be wound. For this reason, for example, the time it takes to form a tape bus during recording/playback as shown in FIG. No need to feel the time lag caused by cassettes.

Furthermore, when the table 200 is pulled out from the main body, the first
The operation may be performed according to the procedure of the second embodiment as shown in FIG. The second example will be described below. First, in order to attach and detach the cassette, use the key operation to
When 0 is extracted from the main body (step S+), a timer is started (step 82).

Next, the presence or absence of the cassette is detected by the detection switch provided on the cassette storage stand 300, and when the cassette is installed in the cassette storage stand 300, the cassette is inserted into the installation main body according to the procedure shown in FIGS. 8 to 10. It is stored and mounted at a predetermined position (step 33). When the timer time elapses for a predetermined time 1 or more without a cassette being loaded into the cassette storage stand 300 (step S4), the loading device and reel drive system are set to the standard cassette position and the table 200 is pulled into the main body (step S4). S5) When the cassette is subsequently installed, the operation is performed according to the procedure shown in FIGS. 8 to 10, as described above.

Therefore, it is possible to prevent the table from sticking out, and the risk of dirt, foreign objects, etc. entering the main body is reduced. Also,
When loading a cassette of the same type as the cassette that was taken out within a predetermined time, the reel drive system and loading device are located in the mode of the cassette that was taken out, so there is no need to move the reel drive system or loading device, and the cassette Since the time it takes to wear the device can be shortened, the device user does not feel uncomfortable.

In this embodiment, the first direction is the horizontal direction and the second direction is the vertical direction, but the first direction and the second direction are of course not limited to the horizontal direction and the vertical direction.

Effects of the Invention As described above, according to the present invention, the reel driving means and the loading means move according to the standard cassette and the small cassette, which have different reel driving means and tape draw-out notches. The reel driving means and the loading means are moved according to the cassette, and after the movement is completed, the tape cassette is mounted at a predetermined mounting position.
If the cassette is installed before the reel driving means and loading means have moved to the position opposite to the cassette to be installed, the reel driving means, loading means, tape cassette, etc. will not fit into each other, and the device will be damaged. It has the advantage of being able to provide a stable tape cassette device without any problems.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the present invention, FIG. 2 is a plane and front view of an embodiment of the cassette loading device which is the main part of the present invention, FIG. 3 is a side view of the cassette loading device, and FIG. 4 is a main part of the present invention. FIGS. 5, 6, and 7 are plan views and side views of a reel WAe-based moving device which is an embodiment of the invention; FIGS. Figure, Figure 9, 1st
FIG. 0 is a diagram for explaining the operation of one embodiment of the present invention, FIG. 11 is a diagram for explaining the operation of another embodiment of the present invention, and FIG. 12 is a diagram used for one embodiment of the present invention. FIG. 2 is a perspective view of a standard cassette and a small cassette. 12... Loading means, 13... Reel drive means, 14... Moving means, 15... Detection means, 16.
...Cassette loading/standby means, 100...Housing portion, 200...Table, 300...Cassette storage stand, 400...Drive unit, 504...Supply reel disk, 505...Take-up Reel disc, 600...
Small chassis, 700--Main chassis, 702a,
702b...Vertical guide roller, 703a, 703b
... Inclined ball, 705 ... Guide ball, 706
... Half loading bo ball, 707... Guard ball, 708... Tension ball, 800...
・Guide drum. Patent applicant: Victor Japan Co., Ltd. Figure 4 (C) W4 bob bU4 Figure 5 Figure 6, 700 Figure 7 Figure 7

Claims (1)

[Claims] A standard cassette or a small cassette is placed directly on a cassette storage stand pulled out to the front of the main body, and the cassette storage stand is moved in a first direction and pulled into the main body to a predetermined mounting position. After being positioned above, the cassette is moved in a second direction and placed on the cassette storage stand, and the cassette is mounted at the predetermined mounting position, and the tape inside the cassette is pulled out by a loading means to form a head. A magnetic recording/reproduction device that forms a tape path wound around a guide drum over a predetermined angle range, and performs recording/reproduction by driving the reel of the cassette with a reel drive means, the reel drive means being driven by a reel drive means. The first reel stand of the cassette storage stand is moved to fit the reel of the cassette, and the loading means is moved to a predetermined fitting position where it fits into the tape drawer notch of the cassette. a moving means for moving the cassette in the first direction; a detecting means for detecting that the reel driving means and the loading means have completed the movement corresponding to the cassette; During the movement, when the detection means detects that the movement has been completed, the cassette storage stand is continuously moved in the second direction to mount the cassette at the predetermined mounting position, and the cassette is mounted at the predetermined mounting position. When the completion of the movement is not detected by the detection means, the cassette storage table is made to wait at the movement end position in the first direction, and after the completion of the movement is detected, it is moved in the second direction, and Cassette installation /
1. A magnetic recording/reproducing device comprising: a standby means.