JP2643692B2 - Magnetic recording / reproducing device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art FIG.
FIG. 12 is a schematic side view showing a conventional magnetic recording / reproducing apparatus disclosed in Japanese Patent Application Laid-Open Publication No. H11-260, and FIG. 12 is a schematic side view showing a tape cassette loading state different from FIG. In the drawing, 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 that houses and moves the cassette A1, 6 is an inner box B that houses and moves the cassette B2, 7a and 7b are guide grooves of the inner box A5 provided in the side plate 4, 8a and 8b are guide grooves of the inner box B6 provided in the side plate 4, and 9a and 9b are implanted in the inner box A5 and have the guide grooves 7a and 7b. The guide pins 10a and 10b are respectively engaged with the guide grooves 7a and 8b, and the guide pins 10a and 10b are respectively engaged with the guide grooves 8a and 8b. The loading arm 11 drives the inner box A5.
12 is a link A locked to the guide pin 9b and the loading arm A11 of the inner box A5, 13 is a loading arm B for driving the inner box B6, and 14 is a link to the guide pin 10a and the loading arm B13 of the inner box B6. The link B has been stopped.

Next, the operation will be described. The inner boxes A5 and B6 stop at the first position for inserting and removing the cassette shown in FIG. 11, respectively, and at the second position where mounting on the deck base 3 is completed as in the inner box A5 shown in FIG. And can be moved via a loading arm A11 and a loading arm B13 by a drive transmission mechanism (not shown). Two loading arm A 11, B 13 is rotated separately by a drive switching means not shown, it can be mounted on the deck base 3 by selecting the cassette A1 and the cassette B2 in the first position. Further, the cassette at the second position is ejected, and after the ejection operation is completed, the other cassette is driven from the first position to the second position by drive switching means (not shown), and is placed on the deck base 3. Mounting. In this way, the cassette A5 and the cassette B6 are each moved to the inner box A at the first position.
5. If 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 configured as described above, in order for the cassette to be smoothly mounted on the deck base 3 without being caught by the cassette, the cassette must be mounted on the inner box with accuracy. Must be well stored. However, since it is necessary to insert and remove the cassette at the first position, the cassette holding force of the inner box must be reduced. When the cassette loading and unloading operations are repeated, the cassette starts and stops with the operation of the inner box. However, there was a problem that the position was shifted with respect to the inner box.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a magnetic recording of an automatic changer mechanism for improving the operational feeling when inserting and removing a cassette and for smoothly loading the cassette onto a deck base. It is intended to obtain a playback device.

[0006]

In the 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 the inner box. The cassette loading is performed by selecting one cassette from among the cassettes at the third position, and when one cassette is in the cassette loading from the third position or when the other cassette is already at the second position, the third cassette loading is performed. At the position, and if there is no cassette in the loading direction from the third position, the cassette inserted from the insertion slot is preferentially loaded to the second position on the deck base, and each inner box is placed in the third position. When stopping at the position, it stops in the same moving direction. For example, when stopping the inner box in the loading direction, it moves in the unloading direction. The box is obtained so as to stop at the third stop position in the loading direction by reversing the direction of movement after passing once third stop position.

[0007]

According to the present invention, the third stop position of the inner box is a position where the inner box stands by in preparation for cassette loading while the cassette is accurately held, and one cassette is further moved from the third position. If the cassette is in the loading direction, the other inner box performs loading and unloading between the first and third positions so that another cassette may wait at the third position if necessary. When there is no cassette in the loading direction from the position, the inserted cassette is preferentially loaded, so that it can be handled in the same manner as a normal cassette loading device without an autochanger function, and when the inner box is stopped at the third position Stop in the same moving direction to suppress the variation of the stop position.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. In the drawings, the same or corresponding parts as those of the conventional device are denoted by the same reference numerals, and description thereof is omitted. 1 to 5
, 15 is a front panel of the apparatus, 16 is a cassette insertion slot A, 17 is a cassette insertion slot B, 18 is a horizontal guide groove of an inner box A5 provided on the side plate 4, and 19 is an 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 a 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; Detection switches B and 34 for detecting the third stop position of the box A5 are projections for operating the detection switches A, B32 and 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 of the inner box having the guide pin 9a as a rotation support shaft, 40 is a loading motor mounted on the inner box, and 41 is an integral shaft that rotates with the output shaft of the loading motor 40. Worm gear B. In addition, 33-41 in the figure has the same structure as the inner box A5 and the inner box B6.

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

Next, the operation will be described. 1 and 2 show a state where the inner boxes A5 and B6 containing the cassettes A1 and B2 are at the third position. When unloading the cassette A1 and taking out the cassette A1 from this state, 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 slot 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 synchronization gear 37 and the synchronization shaft 38, the inner box A5 can approach the insertion port 16 by parallel movement. The protrusions 34 provided on the inner box A5 actuate the detection switch 32, so that the inner box A5
Detects that it has reached the first position, and stops the rotation of the loading motor 40a. In the third position, the lock lever 35 for holding the cassette A1 in the inner box A5 holds the upper surface of the cassette A1 by a biasing spring (not shown).
When one end of the cassette 5 is pressed, the side holding the upper surface of the cassette A1 rises, and the cassette holding is released. In the first position, as shown in FIGS. 3 and 4, the end of the cassette A1 protrudes from the design panel 15 by an appropriate amount.
The cassette A1 for which the cassette holding has been released can be taken out by grasping it with a fingertip.

From the third position shown in FIGS.
When loading 1, the loading motor 40a is started in the loading direction by an operation selecting means (not shown), and the inner box 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 smoothly connected to the guide groove 18 of the side plate 4 and the rack 44, the inner box A5 is stored in the carrier 20 by a horizontal operation. . It is detected by the position detecting means (not shown) that the inner box A5 is completely stored in the carrier 20, and
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 rotated.
The drive pin 23 is driven downward by the
The carrier 20 descends by parallel movement due to the guide pins 46 and 47 and the vertical guide groove on the side plate 4. 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, the rotation of the loading motor 29 is stopped, and the inner box A5 is moved to the first position as shown in FIG. The movement to the position 2 is completed.

While the inner box A5 is performing the loading operation or the mounting completion state shown in FIG. 4, the inner box B6 takes out the cassette B2 by an operation selecting means (not shown), so that the carrier 20 is in the second position as shown in FIG. You can move to the position.

The operation of replacing the cassette A1 on the deck base 3 with the cassette B2 is the opposite of the loading operation, in which 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 at the same height, the rotary switch 31 detects the position of the cam groove 24, and after the vertical movement is completed, the inner box A5 moves to the third position by the horizontal movement. The protrusion 34 of the inner box A5 operates the detection switch 33 and continues to move in the unloading direction even after the switch is turned on, 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. Due to this movement, the detection switch 33 once turned off is turned on again by the projection 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 is 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. Thereafter, the inner box B6 at the third position is horizontally moved in the loading direction, and is stored in the carrier 20, and then the carrier 20 is driven downward, and the cassette B2 is mounted on the deck base. Complete the cassette exchange above.

When the cassette A1 is inserted into the inner box A5 from the insertion opening 16, the detection means (not shown) detects that the cassette A1 is completely stored in the inner box A5, and starts the loading motor 40a 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 (the 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. If there is no other cassette at the aforementioned 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 as it is, is stored in the carrier 20, and then descends and moves on the deck base 3. Is completed with the cassette A1. 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 by the arm 25 to the same height as the guide groove 18 of the inner box A5. Thereafter, the loading operation is performed again starting with the horizontal movement.

[0015]

As is evident from the foregoing description, since the configuration of the cassette loading cassette autochanger the third position holding the cassette in the inner box according to the invention as a standby position, accurately cassette smoothly, and
It can be mounted on a quickly deck base. Ma
Receiving a signal from the detection switch for detecting the third position.
Empty until the loading motor stops completely after
The inner box will stop in the same direction of travel in anticipation of the mileage
Since the, it obtained an effect that there is no variation in the stop position
Is Ru. Further , according to the present invention, the cassette is located at the third position.
The back label of the cassette stored in the inner box from the slot
Since it is configured to be visible,
The effect of being able to check the contents of the set was obtained.
It is. In addition, one of the cassette according to the present invention is a mounted state on the loading during or deck base, freely exchange with other cassette, Ru effect is obtained that it is possible to wait. Furthermore, according to the present invention,
If If the cassette has been mounted on the loading during or deck base on, since the inserted cassette is loaded in preference, the effect is obtained that the same operability and conventional cassette loading apparatus having no autochanger mechanism is obtained is Ru.

[Brief description of the drawings]

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

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

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

FIG. 4 is a sectional view taken along line IV-IV in FIG. 3;

FIG. 5 is a sectional view showing a state at a second position in FIG. 1;

FIG. 6 is a perspective view showing the inner box of FIG. 2;

FIG. 7 is a front view of FIG. 6;

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

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

FIG. 10 is a time chart showing an operation.

FIG. 11 is a side view showing a conventional device.

FIG. 12 is a side view showing the operation change of FIG. 11;

[Explanation of symbols]

 Reference Signs List 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 opening A 17 insertion opening B 18 guide groove 19 guide groove 20 carrier 21 guide groove 24 groove cam 25 arm 26 gear 27 Gear 28 Gear 29 Loading motor 31 Rotary switch 37 Synchronous gear 38 Synchronous shaft 39 Drive gear 40 Loading motor 41 Worm gear 42 Worm wheel 43 Drive gear

Claims (5)

(57) [Claims] In the magnetic recording reproducing apparatus according to claim 1] helicopter Cal scan method, a plurality of cassette insertion port digits set in front design panel, the inserted cassette from the respective insertion opening its
A plurality of inner box for respectively accommodating a drive mechanism for moving the respective inner box individually, the wearing be because of the guide means and the drive means to a predetermined position on the cassette housing in said box deck base and a cassette attachment device having, and the both the inner box, the cassette insertion and a first position capable of taking out a second respective possible stop in the position completing mounted cassette on the deck base Ru der
If further the first and is also possible stop in the third position <br/> location which is between the second position and stopping the inner box to said third position along with, before
The inner box moving from the first position to the loading direction
And stopping after detecting the third position by the position detecting means.
Stop, and unload from the second position.
Unloading method for the inner box moving to the loading direction
The third position is detected in the direction
The moving direction is reversed, and the third
A magnetic recording / reproducing apparatus characterized in that it stops after detecting a position . 2. A magnetic recording / reproducing method using a helical scan method.
In the device, a plurality of cassettes provided on the front design panel
Slot and the cassette inserted from each slot.
Multiple inner boxes to be stored, and each inner box is individually moved
Drive mechanism and the cassette stored in the inner box
Guide means for attaching and detaching to a predetermined position on the stick base;
And a cassette attaching / detaching device having driving means, and each of the inner boxes is adapted to insert and remove a cassette.
First position where cassette can be ejected and cassette on deck base
Can be stopped at the second position where mounting has been completed.
And a third position further between the first and second positions
To stop the inner box at the third position.
The inner box moving from the first position to the loading direction
The third position is detected by a position detecting means, and the third position is detected.
After moving too much, reverse the direction of movement and unload again
To stop after detecting the third position in the
And, also moves from the second position to Anrode Ingu direction
For the moving inner box, the third position is determined by the position detecting means.
A magnetic recording / reproducing apparatus characterized in that the apparatus stops after detecting the error. 3. The cassette according to claim 3 , wherein the back label of the cassette is in the third position.
Can be seen through the opening of the set insertion slot, and the hand, finger, etc. are easily
3. The magnetic recording / reproducing apparatus according to claim 1 , wherein the magnetic recording / reproducing apparatus is located at a position where the cassette cannot be touched . Wherein one of the inner box multiple third position and a second
While moving between the two positions or stopping at the second position
The other inner box is in the first position and the third position
And insert, wait, and remove cassettes.
The third position and the second position.
The inner box that is moving between or stopped at the second position
Inner box waiting at the third position after returning to position 3
Move one inner box to the second position from
The cassette to be mounted on the
3. The magnetic recording / reproducing apparatus according to claim 1 , further comprising an operation selecting unit that can select from a set . 5. The method according to claim 1, wherein the plurality of inner boxes are all in the first position or the first position.
Inner box without cassette in position 3
At the first position, insert the cassette through the cassette
If inserted, the inner box containing this cassette has priority
An operation selecting means capable of moving to the second position;
Magnetic recording and reproducing apparatus according <br/> to claim 1 or 2 or 4, characterized in that the.