JPH05266557A - Magnetic recording and reproducing device - Google Patents

Abstract

PURPOSE:To make the device at low cost and to prevent wrong use by the user by equipping a reel driving means for positioning individual cassettes at their engagement height in a standby position for cassette loading respectively. CONSTITUTION:When a cassette B 2 is moving between a 3rd position and a 2nd position or is stopped in the 2nd position, an inner box A 5 is stopped on standby in the 3rd position, and when the cassette B 2 has no position as stated above, but is stopped in the 3rd position or is moving between a 1st position and the 3rd position, the inner box A 5 is given priority for cassette loading. In other words, when a guide groove 22 of a carrier 20 is positioned at the same height as a guide groove 18 of the inner box A 5, the inner box A 5 is kept in its horizontal movement as it is, and after it is housed in the carrier 20, the carrier is lowered and a cassette A 1 is loaded up on a deck base 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette auto changer mechanism for a helicopter scan type VTR.

[0002]

2. Description of the Related Art FIG. 14 shows, for example, JP-A-3-142745.
FIG. 15 is a schematic side view showing a conventional magnetic recording / reproducing apparatus disclosed in Japanese Patent Laid-Open Publication No. JP-A-2004-115, and FIG. In the figure, 1 is a cassette A, 2 is a cassette B, 3 is a deck base, 4 is a side plate, 5 is an inner box A for accommodating and moving the cassette A1, 6 is an inner box B for accommodating and moving the cassette B2, 7a and 7b are guide grooves for the inner box A5 provided on the side plate 4, 8a and 8b are guide grooves for the inner box B6 provided on the side plate 4, and 9a and 9b are implanted on the inner box A5 to form the guide grooves 7a, Guide pins 10a and 10b respectively engaged with 7b are implanted in the inner box B6 and engaged with the guide grooves 8a and 8b respectively, and 11 is a loading arm A for driving the inner box A5.
Reference numeral 12 is a link A locked to the guide pin 9b of the inner box A5 and the loading arm A11, 13 is a loading arm B for driving the inner box B6, and 14 is a guide pin 10a of the inner box B6 and the loading arm B13. It is the stopped link B.

Next, the operation will be described. The inner box A5 and the inner box B6 are stopped at the first position for cassette insertion and removal shown in FIG. 14 and the second position where the inner box A5 shown in FIG. 15 is completely mounted on the deck base 3. It can be moved via the loading arm A11 and the loading arm B13 by a drive transmission mechanism (not shown). The two loading arms A, B11, 13 can be individually rotated by drive switching means (not shown), and the cassette A1 and the cassette B2 in the first position can be selected and mounted on the deck base 3. Also, eject the cassette in the second position,
After the discharging operation is completed, the other cassette is driven from the first position to the second position by the drive switching means (not shown) and mounted on the deck base 3. In this way, the cassette A5 and the cassette B6 are respectively placed in the inner box A at the first position.
5, If these cassettes are stored in the inner box B6, these cassettes can be selected, loaded, and mounted on the deck base 3.

[0004]

Since the conventional magnetic recording / reproducing apparatus is constructed as described above, while one cassette is operating for reproducing or recording, the other cassette is on standby. Therefore, another device is required when rewinding the tape in this standby cassette, or even if you want to continue watching the other cassette after playing the cassette, you can continue to play the previous cassette. There has been a problem that a plurality of cassettes cannot be efficiently used because it is necessary to wait while rewinding. Further, as the number of cassettes accommodated in the apparatus increases, it is difficult for the user to grasp the state of each cassette, which causes a problem of misuse and poor usability.

The present invention has been made to solve the above problems, and it is an object of the present invention to obtain a magnetic recording / reproducing apparatus capable of efficiently using a plurality of cassettes by performing operations such as rewinding of the cassettes in addition to the normal operation. To aim. It is another object of the present invention to provide a magnetic recording / reproducing apparatus which prevents misuse when a user makes a plurality of recordings for a long time.

[0006]

In a magnetic recording / reproducing apparatus according to the present invention, a third stop position is provided between a first position and a second position, which are stop positions of an inner box, and a third stop position is provided. One cassette is selected from among the cassettes at the position 1 to perform the cassette loading, and the tape reel of the cassette at the third position is engaged with the driving means to rewind or fast forward the tape. It was done. Further, in the magnetic recording / reproducing apparatus according to the present invention, whether the reserved contents and the state of the tape match by driving the tape autochanger device and various sensors of the apparatus main body by a microcomputer or the like to check the tape. ，
It is to determine whether or not the condition is satisfied.

[0007]

In the present invention, the third stop position of the inner box is a position for waiting for cassette loading while the inner box holds the cassettes with high precision. By providing the reel driving means positioned at the engaging height, the tape of each cassette can be driven. Further, in the present invention, since the purpose can be achieved by using the function originally provided in the main body device, it is inexpensive and surely grasps the state of a plurality of cassettes and collates with the contents of the reservation. However, the user can be warned.

[0008]

【Example】

Example 1. An embodiment of the present invention will be described below with reference to FIGS. In the figure, the same or corresponding parts as those of the conventional device are designated by the same reference numerals and the description thereof will be omitted. 1 to 5
15 is a design panel on the front of the apparatus, 16 is a cassette insertion opening A, 17 is a cassette insertion opening B, 18 is a horizontal guide groove of an inner box A5 provided in the side plate 4, and 19 is also the inner box B.
6, a horizontal guide groove, 20 is a carrier for vertically moving the inner box, 21 is a guide groove for vertically moving the carrier 20,
22 is a horizontal guide groove of the inner box provided in the carrier 20,
23 is a drive pin implanted in the carrier 20, 24 is a cam groove for driving the drive pin 23, 25 is an arm having the cam groove 24, 26, 27 and 28 are gear trains for driving the arm 25, and 29 is an arm 25. Loading motor for driving 3
0 is a worm gear A that rotates integrally with the output shaft of the loading motor 29, 31 is a rotary switch that detects the rotation angle of the arm 25, 32 is a detection switch A that detects the first stop position of the inner box A5, and 33 is an inner switch. A detection switch B for detecting the third stop position of the box A5, 34 is a protrusion for operating the detection switches A, B 32, 33, 35 is a cassette holding lock lever, 36 is a cam for releasing the lock lever 35, 37 Is a synchronous gear, 38 is a synchronous shaft, 39 is a drive gear for an inner box having the guide pin 9a as a rotation support shaft, 40 is a loading motor attached to the inner box, and 41 is an integral rotation with the output shaft of the loading motor 40. It is worm gear B. In the figure, 33 to 41 have the same structure as the inner box A5 and the inner box B6.

In the inner box shown in FIGS. 6 and 7, a worm wheel 42 meshes with the worm gear B41 and rotates integrally with the drive gear 39. 43 is a drive gear and 9c is a horizontal guide pin. In the side plate 4 shown in FIG.
4, 45 are racks. In the carrier 20 shown in FIG. 9, 46 and 47 are guide pins that engage with the guide groove 21, and 48 is a rack.

In the reel driving device shown in FIG. 10, 5
Reference numeral 0 is a base member of the present apparatus, 51 is a support plate that supports a reel engaging portion, and 52 is a reel disk that directly engages with a reel hub in the cassette, and has two disks for supply and winding. Reference numeral 53 is a releasing member for releasing the lock of the reel hub in the cassette, and 54 and 55 are connecting the base member 50 and the support plate 51, respectively.
Is a driving arm that constitutes a pantograph mechanism for vertically moving the arms up and down, and 56 is a synchronizing shaft that transmits rotation to the driving arms 54 and 55 and synchronizes the left and right arms, and also serves as a rotation fulcrum of the arms 54 and 55. .. 57 is the arm 5
Rotation fulcrum shafts 4, 55, and guide grooves 58, 59 on which the pin 60 at the other end of the arm engages and slides are provided on the left and right of the base member 50 and the support plate 51, respectively.

Reference numeral 61 is a motor for driving the reel disc 52 to rotate, and 62 is a pulley for transmitting the rotation to an idler 63 which is fixed to the rotary shaft of the motor 61 and is rotatably supported about the shaft of the motor 61. Reference numeral 63 is configured to abut either of the reel discs 52 depending on the rotation direction of the motor 61 to give rotation. Brakes 67 and 68 have springs 6 on each reel disc 52.
It is urged by 9, 70 to lightly brake the reel disk 52. A motor 64 drives the gear 66 of the shaft 56 via the worm 65 to move the support plate 51 up and down. The rotation of the motor 64 is controlled by a positioning switch (not shown) so that the support plate 51 is stopped at a retracted position (see FIG. 2) and at a predetermined position so as to engage with each cassette. ing.

Next, the operation will be described. 1 and 2 show a state in which the inner box A5 and the inner box B6 accommodating the cassettes A1 and B2 are in the third position. When the cassette A1 is unloaded from this state and the cassette A1 is taken out, the loading motor 40a is activated in the unloading direction by using an operation selecting means (not shown). Power is transmitted from the loading motor 40a to the worm gear 41, the worm wheel 42, and the drive gear 39,
The drive gear 39 rotates. Since the drive gear 39 meshes with the rack 44 fixed to the side plate 4, the drive gear 39
The inner box A5 moves in the direction of the insertion opening 16 with the rotation of. Since the rotation of the worm wheel 42 also rotates the drive gear 43 on the opposite side via the synchronous gear 37 and the synchronous shaft 38, the inner box A5 can approach the insertion opening 16 by the parallel movement. The protrusion 34 provided on the inner box A5 operates the detection switch 32, so that the inner box A5
Has reached the first position and the rotation of the loading motor 40a is stopped. In the third position, the lock lever 35 holding the cassette A1 in the inner box A5 presses the upper surface of the cassette A1 by a biasing spring (not shown), but in the first position, the lock lever 3 is held by the cam 36.
When one end of the cassette A5 is pressed, the side of the cassette A1 that was pressing the upper surface is lifted, and the cassette holding is released. At the first position, as shown in FIGS. 3 and 4, the end portion of the cassette A1 protrudes from the design panel 15 by an appropriate amount.
The cassette A1 whose holding is released can be grasped with a fingertip and taken out.

From the third position in FIGS. 1 and 2, cassette A
When loading No. 1, the loading motor 40a is activated in the loading direction by an operation selecting means (not shown), and the inner gearbox A5 is moved in the loading direction by the drive gears 39 and 43. Since the guide groove 22 and the rack 48 formed inside the carrier 20 are in a positional relationship in which they are smoothly connected to the guide groove 18 of the side plate 4 and the rack 44, the inner box A5 is accommodated in the carrier 20 by horizontal movement. .. The position detection means (not shown) detects that the inner box A5 is completely stored in the carrier 20,
The rotation of the loading motor 40a is stopped. Thereafter, the loading motor 29 for vertical operation is started in the loading direction, the arm 25 is rotated, and the cam groove 24 is moved.
Drive pin 23 is driven downward by carrier 20
The guide pins 46 and 47 and the vertical guide grooves on the side plate 4 cause the carrier 20 to move in parallel and descend. The rotation of the loading motor 29 is stopped when the rotary switch detects the position of the cam groove 24 where the mounting of the cassette A1 at the predetermined position on the deck base 3 is completed, and the inner box A5 is moved to the first position as shown in FIG. Complete the move to position 2.

During the loading operation of the inner box A5 or in the mounting completed state of FIG. 4, the inner box B6 takes out the cassette B2 by the operation selecting means (not shown), so that the carrier 20 is in the second state as shown in FIG. Can be moved to a position.

Contrary to the loading operation, the operation of exchanging the cassette A1 on the deck base 3 for the cassette B2 is such that the carrier 20 is driven upward by the arm 25 and the guide groove 18 for horizontal movement of the inner box A5. , 22 are located at the same height in the cam groove 24, the rotary switch 31 detects the vertical movement, and then the horizontal movement moves the inner box A5 to the third position. The protrusion 34 of the inner box A5 operates the detection switch 33, and after the switch is turned on, it continues to move in the unloading direction, and the detection switch 33 is turned off again by the passage of the protrusion 34. After detecting this, the loading motor 40a is reversed to move the inner box A5 in the loading direction. By this movement, the detection switch 33, which has been turned off once, is turned on again by the protrusion 34. After detecting this, the rotation of the loading motor 40a is stopped and the movement of the inner box A5 to the third position is completed. Thereafter, the arm 25 is driven so that the guide groove 22 of the carrier 20 becomes equal to the height of the guide groove 19 of the inner box B6, and the carrier 20 is stopped by the rotary switch 31. After that, the inner box B6 in the third position is horizontally moved in the loading direction and is housed in the carrier 20, and then the carrier 20 is driven downward to mount the cassette B2 on the deck base, Complete the above cassette exchange.

When the cassette A1 is inserted into the inner box A5 through the insertion opening 16, it is detected by a detection means (not shown) that the cassette A1 is completely stored in the inner box A5, and the loading motor 40a is activated in the loading direction. .. The protrusion 34 of the inner box A5 operates the detection switch 33 to detect the arrival at the third position. At this stage, if another cassette (cassette B2 in this embodiment) is moving between the third position and the second position or is stopped at the second position, the inner box A5 is moved to the third position. However, if there is no other cassette in the above position and the cassette is stopped at the third position or is moving between the first position and the third position, the cassette loading is performed in the inner box A5. Has priority. That is, if the guide groove 22 of the carrier 20 is at the same height as the guide groove 18 of the inner box A5, the inner box A5 continues to move horizontally, is stored in the carrier 20, and then descends to fall on the deck base 3. The cassette A1 is completely installed. If the carrier 20 is at another height, the inner box A5 once stops at the third position, and the guide groove 22 of the carrier 20 is moved to the same height as the guide groove 18 of the inner box A5 by the arm 25. After that, the horizontal movement is started again and the loading operation is performed.

The support plate 51 of the reel driving device is a cassette A.
In the state where 1 and B2 are inserted or ejected, they are in the retracted position as shown in FIG. When the cassette B2 is instructed to fast-forward or rewind in this state, the motor 64 is activated to rotate the shaft 56, and the arms 54 and 55 cause the support plate 51 to start moving upward to engage the cassette B2. Stop by a limit SW (not shown), and the motor 61 starts rotation of the reel. When the tape reaches the end, it automatically stops rotating and descends to the retracted position again. When the cassette B2 is discharged to the outside of the main body or mounted on the deck at the second position, the tape of the cassette A1 is fast-forwarded or rewound by the same operation as above. You can

Regarding the detection of the end, a method of counting the rotations of the left and right reels to roughly determine the position of the tape, decelerating at the end, and detecting the stop of the rotation at the end of the tape is considered. Be done. Alternatively, the light emitting element and the light receiving element may be arranged to face each other with the tape sandwiched therebetween by utilizing the opening of the cassette, and the transparent leader tape or trailer tape of the tape may be directly detected. Further, a torque limiter may be provided between the drive motor and the reel disk so that excessive tension is not applied to the tape and the tape is stopped at an instant.

A head for reading the control signal of the tape using the opening is inserted into the cassette at the same time as the reel disk and is pressed against the tape to read the control signal, and fast-forward or rewind the tape to a desired position. It is also possible.

Example 2. Another embodiment of the present invention is shown in FIG.
2, FIG. 13 will be described. Here, a device that can store three tapes will be described. If the cassettes A, B, and C are inserted into the three openings a, b, and c, respectively. In this case, the tape A inserted into the opening a is automatically loaded in the second position, and the other tapes B and C are held in the third position. Next, a recording reservation is made, a program reservation is set for each tape, and the recording reservation completion mode is set.

The apparatus automatically enters the confirmation mode, and first determines whether or not a reservation has been made for each of the tapes A, B and C contained in the reservation contents. If tape A,
If B and C are reserved and any one of them is not stored in the device, a warning sound is emitted from the device to alert the user. It should be noted that it is desirable that the confirmation mode is automatically started at the same time as the reservation recording is completed, but of course it may be selected by the user.

Next, it is judged whether or not there is a tape at the second position, and if there is no tape, the cassette loading device is driven and the tape, for example A, at the third position of any opening is moved to the second position. Attach to. At the second position, the presence / absence of a claw for preventing erroneous erasure of the cassette of the tape A is first detected. Next, the tape A is slightly rotated, the number of rotations is detected by a reel sensor or the like, the remaining amount of the tape is checked, and it is checked whether the reserved program can be recorded on the tape.
In this case, if it is impossible, a warning is issued again to remind the user.

In the first tape A, if there is no contradiction with the reservation content, it is confirmed whether or not there is a reservation with respect to the other tapes B and C. If there is a contradiction with the reservation content, the cassette drive is driven to open the tape A at the opening a. Back to the third position, and then the cassette B located at the third position of the opening b is moved to the second position to perform the same process as the cassette A. After completion of the cassette C, the recording reservation mode is entered. In FIG. 13, reference numeral 71 indicates a control device, and 72 indicates a tape loading device.

[0024]

As described above, according to the present invention, since one tape can be fast-forwarded or rewound while the other tape is in operation, it is possible to effectively use a plurality of cassettes. In addition, since the state of the cassette can be checked against the reservation contents by driving the tape cassette loading device using a microcomputer, the device is inexpensive and the user's misuse can be prevented. Is obtained.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a state of a device according to a first embodiment of the present invention in a third position.

2 is a cross-sectional view taken along the line II-II in FIG.

3 is an external perspective view showing a state of a first position in FIG. 1. FIG.

4 is a cross-sectional view taken along the line IV-IV in FIG.

5 is a cross-sectional view showing a state of a second position in FIG.

FIG. 6 is a perspective view showing an inner box of FIG.

FIG. 7 is a front view of FIG.

FIG. 8 is a partially cutaway perspective view showing the side plate of FIG. 2;

9 is a perspective view showing the carrier of FIG. 2. FIG.

10 is a perspective view showing the reel drive device of FIG. 2. FIG.

FIG. 11 is a time chart showing the operation.

FIG. 12 is a timing chart showing a second embodiment of the present invention.

FIG. 13 is a block diagram of FIG.

FIG. 14 is a side view showing a conventional device.

FIG. 15 is a side view showing a change in operation of FIG.

[Explanation of symbols]

 1 Cassette A 2 Cassette B 3 Deck Base 4 Side Plate 5 Inner Box A 6 Inner Box B 15 Front Design Panel 16 Insertion Port A 17 Insertion Port B 18 Guide Groove 19 Guide Groove 20 Carrier 21 Guide Groove 24 Groove Cam 25 Arm 29 Loading Motor 31 Rotary Switch 37 Synchronous Gear 38 Synchronous Shaft 39 Drive Gear 40 Loading Motor 43 Drive Gear 50-70 Reel Drive Device 71 Control Device 72 Tape Loading Device

Claims (3)

[Claims] 1. A helicopter scan type magnetic recording / reproducing apparatus, comprising: a plurality of cassette insertion openings provided on a front design panel thereof; and a plurality of inner boxes for accommodating cassettes inserted from the respective insertion openings. A drive mechanism for individually moving these inner boxes, and a cassette attaching / detaching device having a guide means and a drive means for attaching / detaching a cassette housed in the inner box to a predetermined position on a deck base, Each of the inner boxes is provided with a first position at which a cassette can be inserted and removed, a second position at which the cassette is completely mounted on the deck base, and between the second position and the first position. And a means for driving the tape reel in the cassette of the cassette housed in a cassette other than the second position. Gas-recording and reproducing apparatus. 2. A magnetic recording / reproducing apparatus according to claim 1, wherein a position other than the second position where the means for driving the tape reel in the cassette engages with the accommodated cassette is the third position. apparatus. 3. A helicopter scan type magnetic recording / reproducing apparatus, comprising: a plurality of cassette insertion openings provided in the front design panel; and a plurality of inner boxes for accommodating the cassettes inserted from the respective insertion openings. A drive mechanism for individually moving these inner boxes, and a cassette attaching / detaching device having a guide means and a drive means for attaching / detaching a cassette housed in the inner box to a predetermined position on a deck base, Each of the inner boxes is provided with a first position at which a cassette can be inserted and removed, a second position at which the cassette is completely mounted on the deck base, and between the second position and the first position. In the case where it is configured to be able to respectively stop at the third position provided, and more than one cassette is accommodated in a plurality of inner boxes, it is accommodated when the recording reservation operation is completed. Check the state of the tape by driving the set to each of the second position, the magnetic recording and reproducing apparatus characterized by comprising a control device for controlling so as to be matched with the recording reservation contents.