JPH0536175A - Cassette loading equipment - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide a cassette loading device capable of continuously recording and reproducing by selecting an arbitrary cassette from a plurality of cassettes containing magnetic tapes, loading the cassette into a recording and reproducing device. A rotary table 1 for mounting a cassette 15 rotatably supported on a reciprocating tray 2, a support roller 4 for radially supporting the cassette 15, and a drive gear 3 for driving the rotary table 1. The stop position detection switches 11 and 12 of the rotary table 1 are attached. Positioning engagement portions 1a and 19 are provided on the turntable 1 and the deck 10 that can be moved up and down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention selects an arbitrary cassette from a plurality of cassettes containing a magnetic tape as a signal recording medium, loads it into a recording / reproducing device, and enables continuous recording / reproducing. And a cassette loading device.

[0002]

2. Description of the Related Art FIG. 13 shows, for example, JP-A-59-98343.
16 is a sectional plan view showing a conventional cassette loading device disclosed in Japanese Patent Publication No. JP-A-2004-242242, FIG. 14 is a sectional side view showing the same, and FIG.
FIG. 6 is a sectional side view showing a process in which the cassette is ejected from the holder.

In the figure, 101 is a magnetic recording / reproducing apparatus main body (hereinafter referred to as recording / reproducing apparatus main body) for recording or reproducing signals such as images and music on a magnetic recording medium housed in a cassette, and 102 is a cassette insertion hole. , 103 are tape reel bases, which are provided as a pair on the winding side and the supplying side. Reference numeral 104 is a cassette upper position detection switch, 105 is a lower position detection switch, 106 is a usage state detection switch for detecting the usage state of the cassette holder, and 107 is a discharge detection for detecting that the cassette has been discharged to the outside. A switch 109 is a drive start switch. Each of these switches is attached to the recording / reproducing apparatus main body 101. 110 is a cassette drive motor attached to the recording / reproducing apparatus main body 101, 111 is a worm, 112 is a worm wheel, 1
13 is a drive shaft connected to the worm wheel 112,
Reference numeral 30 denotes a U-shaped holder rotatably attached to the drive shaft 113, and 130 a and 130 b denote holders 13.
0 of both leg pieces, 115 is a main roller shaft mounted rotatably on both leg pieces 130a, 130b and parallel to the drive shaft 113, and 114 is substantially in the center of the main roller shaft 115 and integrally with the main roller shaft 115. Attached cassette feeding / discharging roller (hereinafter referred to as main roller), 116
Is a support arm control roller attached to both ends of the main roller shaft 115, 117 is a cassette holder unit provided in the upper part of the insertion hole 102 of the recording / reproducing apparatus main body 101 so as to be retractable and retractable, 118 is a cassette holder unit 117. A holder main body, which is a frame surrounding the periphery of the cassette, 119 is a guide groove provided on the outer surface of the left and right side walls of the holder main body 118, 120 is a guide pin that engages with a guide groove 119 provided in the recording / reproducing apparatus main body 101, 121
Is a bearing portion 1 formed on the inner surface of the front surface of the holder body 118.
A pair of support arms rotatably attached to 22 and bent in a substantially dogleg shape, 123 is a spring for holding the support arm 122 in a state shown by a solid line in FIG. A cassette accommodating a magnetic tape, which is a medium, is a second cassette of the same type as the cassette 127.

Next, the operation will be described. 13 and 1
As shown in FIG.
Manually pull out 7 forward. Then switch 106
Is operated by the rear surface of the holder main body 118 to turn it on, and the motor 110 starts rotating. As a result, the main roller 114 rotates, so that the support arm control roller 116 also rotates through the shaft 115. In this case, the rotation directions of the rollers 114 and 116 are counterclockwise in FIG. In this state,
As shown in FIG. 4, the cassette 127 is placed on the holder 117. That is, by inserting the holder 117 in an oblique direction as shown by 127a, the holder 117 is stored in the state shown by 127b.

When the cassette 127 is inserted into the holder 117 as shown by 127b in FIG. 14, the pair of support arms 121 pivots downwards slightly due to the weight of the cassette 127, and the tips of the support arms 121 support roller control rollers. It contacts the peripheral surface of 116. In this state, the roller 116 is rotating counterclockwise, so that the cassette 12 shown in FIG.
7b remains held in that state.

In this state, the drive start switch 109
When the switch is manually turned on, the motor 110 reverses, that is, the roller 116 rotates clockwise. This forces the tip of the arm 121 to be pushed downward,
Since the lock of the tip end of the support arm 121 from the roller 116 is released, the support arm 121 is set to the cassette 1
It rotates downward due to its own weight of 27 (state shown by a solid line in FIG. 15). The state of the support arm 121 in this case is
It is indicated by a one-dot chain line in FIG. When the support arm 121 rotates in this manner, the cassette 127 is moved to the position shown in FIG.
At 127, the rear end is positioned on the part 121b of the arm 121. Therefore, this cassette 127 is
It is naturally pushed forward by the inclined surface of b, and finally moved to a state shown by 127d in FIG.

When the state 127d in FIG. 15 is reached, the main roller 114 rolls on the upper surface of the cassette 127. When the cassette 127 is fed in this way, the cassette 127 is then fed into the recording / reproducing apparatus body 101 by a so-called front loading mechanism mounted on the recording / reproducing apparatus body 101. Then the support arm 1
21 returns upward due to the spring 123, but the main roller 1
Since 14 rotates clockwise, the tip of the support arm 121 remains in contact with the lower side of the main roller 114. When the cassette 127 reaches the position 127e, the switch 104 causes the motor 110 to rotate in the reverse direction again, the main roller 114 rotates counterclockwise, and the supporting arm 121 is again brought above the main roller 114, so that the original Return to position. Next, the cassette 127 is shown in FIG.
No. 5, 127 f, is moved to a predetermined set position, and is rotationally engaged with the reel stand 103. Then, the switch 5 is turned off (or turned on), and the motor 110
Stops rotating. Recording or reproduction is performed on the mounted cassette 127f.

Further, the next cassette 128 (subsequent cassette) is set in advance on the cassette holder 117 as shown in FIG. In this state, the tip of the arm 121 is controlled by the support arm control roller 116 and does not fall downward to maintain its position. After this, when recording (or reproduction) on the cassette (preceding cassette) 127 is completed, the cassette 127 is ejected from the position 127f shown in FIG. 16 to the outside of the recording / reproducing apparatus main body 101 by the loading device in the recording / reproducing apparatus main body 101. To be done. When the cassette 127 reaches the position of 127 g on the way, the switch 104 is turned on, the motor 110 starts rotating, and the main roller 114 rotates counterclockwise. When the cassette 127 is discharged to some extent, it is forcibly sent out by the rotation of the main roller 114 and transferred by 127h in FIG. 16, and when it is separated from the main roller 114, the cassette 127 falls due to its own weight, and the switch Operate 107 (position 127i). In this way, the switch 10
7 is operated, the above-mentioned motor 110 is rotated in the reverse direction again, and the main roller 114 and the support arm control roller 11 are rotated.
Since each of the 6 rotates in the clockwise direction, the same operation as that described with reference to FIGS. 14 and 15 is repeated, and thereafter, the loading device is mounted at a predetermined position to perform recording (or reproduction).

[0009]

In the conventional cassette loading device as described above, since the cassette for which recording or reproduction has been completed is ejected, endless reproduction cannot be performed. The second standby cassette 128 is shown in FIG.
As shown in FIG. 6, it is not suitable for a vehicle-mounted device because it always projects during standby. Since the recording / reproducing apparatus has a front loading structure, a cassette transfer space and a holder accommodating space are required above the reel stand, which makes it difficult to reduce the height of the apparatus.

The present invention has been made in order to solve the above problems, and makes it possible to replay a cassette that has once been replayed, and at the same time, there is no protrusion from the device during recording and replay, and the cassette is low in height. The purpose is to obtain a loading device.

[0011]

SUMMARY OF THE INVENTION A cassette loading apparatus according to the present invention comprises a reciprocating tray, a rotary table on which a cassette mounted thereon, and a vertically movable deck for recording and reproducing signals on a magnetic tape. Each of the parts is provided with an engaging part for positioning.

Further, the cassette loading apparatus according to the present invention comprises a reciprocating tray, a switch for detecting the open position and a switch for detecting the closed position, and a rotary table for loading a plurality of cassettes provided on the tray. A drive gear for driving the same, a support roller for positioning the rotary table in a radial direction, a gear portion formed on the outer periphery of the rotary table, a detection switch for detecting respective stop positions of the drive gear in the forward and reverse rotation directions, and A detection part, a detection switch for detecting the number of the cassette on the tray and a detection part, and a control part for controlling the rotary table drive motor are provided, and the number of teeth of the gear part of the rotary table is set to Nt and driven. Nt = 2 × Nc × Nd, where Nd is the number of gear teeth and Nc is the number of turns of a cassette mounted on the rotary table.
It is supposed to be a relationship.

Further, the cassette loading device according to the present invention comprises a reciprocating tray, a switch for detecting the open position and a switch for detecting the closed position, and a rotary table for loading a plurality of cassettes provided on the tray. ,
A drive unit that drives this, a detection switch and a detected unit that detects the stop position of the rotary table, a cassette feed switch that is exposed when the tray is open, a detection switch and a detected unit that detects the cassette number, and a rotation. A control unit for controlling the table drive unit and the rotary table drive motor is provided.

[0014]

In the present invention, after selecting the cassette,
When this is loaded into the recording / reproducing apparatus, the deck part moves upward, and the engaging part provided on the deck part engages with the engaging part provided on the turntable, so that the circumference of the turntable with respect to the deck part is reduced. Corrects deviations in direction and restricts movement in the circumferential direction.

Further, in the present invention, the cassette can be arranged on the tray in a plane and the cassette can be loaded on the rotary table by pulling out the tray. Then, when the drive gear makes one rotation due to the relationship between the number of teeth of the gear part of the rotary table and the number of teeth of the drive gear when selecting the cassette, the rotary table rotates 360 / (2 × Nc) degrees, and the drive gear makes two rotations. Each time, the turntable rotates for one cassette.

Further, according to the present invention, the cassette can be arranged flat on the tray, and the cassette can be inserted into and removed from the rotary table by pulling out the tray from the apparatus by about one cassette. Then, the stop position of the rotary table is detected from the output of the tray open / close detection switch, the output of the cassette number detection switch provided on the rotary table side, and the output of the rotary table stop position detection switch, and the controller interlocks with the tray open / close operation. Then, the angle difference rotary table between the position of the deck and the position where the cassette is inserted and removed is rotated.

[0017]

【Example】

Embodiment 1 FIGS. 1 to 10 are views showing an embodiment of the present invention, in which 1 is a rotary table having a gear portion on the outer periphery and mounting a plurality of cassettes, 1a is a rotary table 1 The provided engaging holes, 2 are trays that support the rotary table 1 and move back and forth, 3 are drive gears that rotate the rotary table 1, and 4 is a rotary table support roller (hereinafter, referred to as a rotary table supporting roller for positioning the rotary table 1 in the radial direction). Support roller) 5
Reference numerals a and 5b are guide rails that serve as guide support members when the tray 2 moves back and forth, and 6 is a cassette mounting member slidably supported on the rotary table 1 and a dust cover provided on the lower surface of the cassette. A slider opener that is an opening / closing member and has a claw portion that restricts the forward movement of the cassette, 7 is a side wall that restricts the lateral movement of the cassette, 8 is a rear surface wall that restricts the backward movement of the cassette, and 9 is A cassette holder for pressing and holding a cassette on a deck 10 is a deck of a recording / reproducing apparatus for recording or reproducing a signal on a magnetic tape which can be raised and lowered by an elevating mechanism (not shown), and 11 is a rotary table 1 in a clockwise direction. A switch for detecting a stop position when rotating (a forward rotation side stop position detecting switch), 12 is a stop for rotating the rotary table 1 counterclockwise. Switch for detecting the position (reverse rotation stop position detection switch) 13 is the detected portion of the detection switch 11, 14 is detected portion of the detection switch 12, 15 is a cassette housing a magnetic tape as a recording medium of a signal, 16
a and 16b are detection portions formed on the back surface of the rotary table 1 to detect the position of the cassette 15, 17 and 18 are selection switches provided on the tray 2 and detecting the position of which cassette is selected, Reference numeral 19 denotes an engaging portion with the rotary table 1 provided on the deck 10, the tip of which is a tapered convex portion.

Next, the operation will be described. First, when the tray open / close switch (not shown) is turned on when the cassette is not in the apparatus as shown in FIG. 1, the tray 2 is supported by the guide rails 5a and 5b as shown in FIG.
When the tray opening / closing drive device (not shown) comes out from the front of the device by about one cassette, the rotary table 1 is rotated by 180 degrees by the drive gear 3. In this state, the cassette 15a is placed on the rotary table 1 as shown in FIG.
Then, when the rotary table rotary switch (not shown) is pressed, the rotary table 1 is rotated by 120 degrees, and the next cassette can be received. Here the second cassette 15
When b is placed on the rotary table 1 and the rotary table rotary switch is pressed again, the rotary table 1 is rotated by 120 degrees in the same manner, and the next cassette can be received,
As shown in FIG. 4, the third cassette 15c is placed here. When the rotation direction is clockwise (clockwise) in the drawing, the rotation angle of the rotary table 1 is determined by the forward rotation stop position detection switch 11 and the selection switches 17 and 18, and when the rotation direction is counterclockwise, the rotation angle is reverse. It is detected by the stop position detection switch 12 and the selection switches 17 and 18.

Next, when the tray open / close switch is turned on again, the operation reverse to the above, that is, the rotary table 1 is moved to 18 °.
At the same time when it is rotated 0 degrees, the tray 2 is pulled into the device,
The state shown in FIG. 5 is obtained. The cassettes 15a, 15b,
On the rotary table 1, the side wall 7, the rear wall 8, and the slider opener 6 are provided on the rotary table 1, and the rotary table 1 is regulated with a margin in front, rear, left, and right directions. The support table 4 positions the rotary table 1 in the radial direction. . Then, when a recording or reproducing switch (not shown) is turned on, the cassette 15a is pressed and held by the cassette holder 9,
The slider of the cassette 15a is opened by sliding the slider opener 6a shown in (1) to the rear by a slider opening / closing mechanism (not shown) (shown by a chain double-dashed line in the figure). FIG. 8 shows a side view of this state, and FIG. 10 shows a rear side (upper side of FIG. 6) of this state. Next, the deck 10 is moved upward by a deck elevating mechanism (not shown), the deck side engaging portion 19 engages with the table side engaging portion 1a as shown in FIGS. 8 and 10, and the deck 10 and the rotary table are rotated. After correcting the relative positional deviation with respect to 1 in the circumferential direction, the cassette 15a is mounted on the deck 10. After that, recording and reproduction are performed in the same manner as the conventional device.

When the recording or reproducing of the cassette 15a is completed, the deck 10 moves downward, the rotary table 1 rotates by 120 degrees, and the cassette 15b is set in the recording / reproducing apparatus. After that, the cassette 15b is mounted on the deck 10 and recording / reproducing is performed in the same manner as in the case of the cassette 15a. The cassette 15c is also recorded and reproduced in the same manner.

Also, the cassettes 15a, 15b, 15
When recording and reproducing c in any order, the rotary table 1
Is controlled by a microcomputer (not shown), and rotates in the normal direction or reverse direction more quickly to select a cassette.

In the above embodiment, by setting the stop position switch of the rotary table drive device so that the stop position of the rotary table 1 is stopped slightly before the target position, the moving direction of the rotary table 1 is set to the drive portion. Since the gear train is in the loosening direction, the drive motor does not become a load, and the rotary table 1 is easily moved without applying an excessive load to each member.

Embodiment 2 In Embodiment 1 described above, the table-side engaging portion 1a is provided with a hole and the deck-side engaging portion 19 is provided with a convex member, but conversely, the table-side engaging portion is provided with a convex member. Even if a hole is provided in the deck side engaging portion, the same effect as in the above embodiment can be obtained.

Third Embodiment A third embodiment of the present invention will be described with reference to FIGS.
In addition, the same or corresponding parts as those of the first embodiment are designated by the same reference numerals and the description thereof will be omitted. In the figure, 20 is a tray closed position detection switch for detecting the closed position of the tray 2, and 21
Is a tray open position detection switch for detecting the open position of the tray 2. M is a motor for rotationally driving the rotary table 1. In this embodiment, the number of windings of the cassette loaded Nc = 3, and the stop position detection switches 11 and 12 and the cassette number detection switches 17 and 18 of the rotary table 1 are set.
A light emitting element and a light receiving element are used for
And 16a and 16b use a reflective surface and a non-reflective surface.

Next, the operation will be described. First, when the tray open / close switch (not shown) is turned on when the cassette is not in the apparatus as shown in FIG. 1, the tray 2 is supported by the guide rails 5a and 5b as shown in FIG.
A tray opening / closing drive device (not shown) causes about one roll of the cassette to come out from the front surface of the device, and at the same time, the rotary table 1 is rotated by 18 degrees by the drive gear 3. In this state, the cassette 15a is placed on the rotary table 1 as shown in FIG. Then, when the rotary table rotary switch (not shown) is pressed, the rotary table 1 is rotated by 120 degrees, and the next cassette can be received. Here, the second cassette 15b
Is placed on the rotary table 1 and the rotary table rotary switch is pressed again, the rotary table 1 is rotated by 120 degrees in the same manner, and the next cassette can be received. Then, as shown in FIG. 4, the third cassette 15c is placed here. The process of rotating the rotary table 1 by a predetermined angle will be described below.

First, when a tray open / close switch (not shown) is turned on in the state of FIG. 1, a signal showing the tray closed position is output, so a tray open / close motor (not shown).
Is rotated in the tray opening direction, and at the same time, the rotary table drive motor M sets the drive gear 3 to 3 (= Nc) by the control device.
By rotating the rotary table 1 by 180 degrees, the state shown in FIG. 2 is obtained and the first cassette can be loaded on the rotary table 1, and the cassette 15a is loaded as shown in FIG. This state is detected when the outputs from the rotary table stop position detection switches 11 and 12 are on and the outputs from the cassette number detection switches 17 and 18 are all off.

Next, when the table rotation switch (not shown) is pushed, the drive gear 3 is rotated twice by the control device,
The turntable 1 is rotated by one cassette, and the second cassette is ready to be loaded on the turntable 1. In this state, the second cassette 15b is loaded on the rotary table 1,
Similarly, the third cassette 15c is also loaded on the rotary table 1, and the state shown in FIG. 4 is obtained.

Next, when the tray open / close switch is turned on again, a signal indicating the tray open position is output, so the tray open / close motor rotates in the tray close direction, and the rotary table drive motor M drives the drive gear 3 to Nc. It is rotated by (= 3) (or -Nc) to be in the state shown in FIG. In this state, as shown in FIG. 6, the rotary table stop position detection switch 1
The detection is performed when the outputs from 1 and 12 are on and at least one of the outputs from the cassette number detection switches 17 and 18 is on.

When the rotary table 1 rotates in the normal direction, the reverse rotation rotary table stop position detection switch 12 is turned on before the forward rotation rotary table stop position detection switch 11 is turned on. The rotation speed of the rotary table 1 is reduced by controlling the voltage or current to the drive motor M. When it reverses, it becomes the opposite. Here, the cassettes 15a, 15b and 15c are the side wall 7, the rear wall 8 and the slider opener 6 on the turntable 1.
Thus, the positions in the front-rear and left-right directions are restricted with a certain margin, and the rotary table 1 is positioned in the radial direction by the support rollers 4.

Next, when a recording or reproducing switch (not shown) is turned on, the cassette holder 9 causes the cassette 1
5a is pressed and held, and the slider of the cassette 15c is opened by sliding the slider opener 6a shown in FIG. 6 rearward by a slider opening / closing mechanism (not shown) (indicated by a chain double-dashed line in the figure). FIG. 8 shows a side view of this state. Next, the deck 10 is moved upward by a deck elevating mechanism (not shown), and the cassette 15c is mounted on the deck 10 as shown in FIG. After that, recording and reproduction are performed in the same manner as the conventional device.

When the recording or reproducing of the cassette 15c is completed, the deck 10 moves downward, the rotary table 1 rotates 120 degrees, and the cassette 15a is set at the recording / reproducing position. After that, the cassette 15a is mounted on the deck 10 and recording / reproducing is performed in the same manner as in the case of the cassette 15c. Similarly, the cassette 15b is also recorded and reproduced. In addition, the cassette 15a, 15b, 1
When recording and reproducing 5c in an arbitrary order, the rotary table 1 is controlled by the control unit and is rotated in the normal direction or the reverse direction more quickly to select the cassette.

Fourth Embodiment In the third embodiment, the rotary table stop position detecting switch 1 is used.
Although the optical detecting means are used for the cassette number detecting switches 17 and 18 and the cassette number detecting switches 17 and 18, the same effect as that of the above embodiment can be obtained by using the contact type switches.

Fifth Embodiment A fifth embodiment of the present invention will be described with reference to FIGS. 1 to 10 and 12. The same or corresponding parts as in the third embodiment are designated by the same reference numerals and the description thereof will be omitted. In the figure, 22
Is a cassette feed switch for rotating the rotary table 1 by one cassette.

Next, the operation will be described. First, when the tray open / close switch (not shown) is turned on when the cassette is not in the apparatus as shown in FIG. 1, the tray 2 is supported by the guide rails 5a and 5b as shown in FIG.
A tray opening / closing drive device (not shown) projects about one roll of the cassette from the front surface of the device, and at the same time, the rotary table 1 is rotated by 180 degrees by the drive gear 3 from the deck position to the position where the cassette is inserted into and removed from the rotary table 1. In this state, the cassette 15a is placed on the rotary table 1 as shown in FIG. Then, when the cassette feed switch 22 is pressed, the rotary table 1 is rotated by 120 degrees, and the next cassette can be received. Here, when the second cassette 15b is placed on the rotary table 1 and the cassette feed switch 22 is pressed again, the rotary table 1 is rotated 120 degrees in the same manner, and the next cassette can be received. Then, as shown in FIG. 4, the third cassette 15c is placed here. The process of rotating the rotary table 1 by a predetermined angle will be described below.

First, when the tray open / close switch (not shown) is turned on in the state shown in FIG. 1, a signal indicating the tray closed position is output, and therefore a tray open / close motor (not shown).
Is rotated in the tray opening direction, and at the same time, the rotary table drive motor M rotates the rotary table 1 by 180 degrees from the control device, and the state shown in FIG. 2 is obtained, so that the first cassette can be loaded on the rotary table 1. As shown in 3, the cassette 15a is loaded. This state is detected when the outputs from the rotary table stop position detection switches 11 and 12 are on and the outputs from the cassette number detection switches 17 and 18 are all off.

Next, when the cassette feed switch 22 is pressed, the drive gear 3 is rotated twice by the control device, the rotary table 1 is rotated by one cassette, and the second cassette is ready to be loaded on the rotary table 1. . In this state, the second cassette 15b is loaded on the rotary table 1, and similarly, the third cassette 15c is also loaded on the rotary table 1.
The state becomes as shown in.

Next, when the tray open / close switch is turned on again, a signal indicating the tray open position is output, so the tray open / close motor rotates in the tray open direction, and the rotary table drive motor M rotates the rotary table 1 180 °. It is rotated by 180 degrees (or -180 degrees) to be in the state shown in FIG. In this state, as shown in FIG. 6, the outputs from the rotary table stop position detection switches 11 and 12 are on, and at least one of the outputs from the cassette number detection switches 17 and 18 is on. Here, cassettes 15a, 15
b and 15c are a side wall 7 and a rear wall 8 on the turntable 1.
Further, the slider opener 6 regulates the positions in the front-rear and left-right directions with a certain margin, and the rotary table 1 is positioned in the radial position by the support rollers 4.

Then, when a recording or reproducing switch (not shown) is turned on, the cassette 1 is set by the cassette holder 9.
5a is pressed and held, and the slider of the cassette 15c is opened by sliding the slider opener 6a shown in FIG. 6 rearward by a slider opening / closing mechanism (not shown) (indicated by a chain double-dashed line in the figure). FIG. 8 shows a side view of this state. Next, the deck 10 is moved upward by a deck elevating mechanism (not shown), and the cassette 15c is mounted on the deck 10 as shown in FIG. After that, recording and reproduction are performed in the same manner as the conventional device.

When the recording or reproducing of the cassette 15c is completed, the deck 10 moves downward, the rotary table 1 rotates 120 degrees, and the cassette 15a is set at the recording / reproducing position. After that, the cassette 15a is mounted on the deck 10 and recording / reproducing is performed in the same manner as in the case of the cassette 15c. Similarly, the cassette 15b is also recorded and reproduced. In addition, the cassette 15a, 15b, 1
When recording and reproducing 5c in an arbitrary order, the rotary table 1 is controlled by the control unit and is rotated in the normal direction or the reverse direction more quickly to select the cassette.

[0040]

As described above, according to the present invention, since the cassette is not ejected even after the reproduction is completed, the reproduction can be continued, and the recording / reproducing order is not limited to the mounting order, and an arbitrary cassette can be used. Is possible for . Also, the cassette in the standby state does not protrude from the device unlike the conventional device and is accommodated in the device even during recording or reproduction, so that it does not interfere. Further, since the cassette is arranged on the rotary table in a plane, the cassette transfer space and the cassette accommodation space are shared, and therefore the height of the entire apparatus can be reduced.

Further, according to the present invention, since the switch provided on the drive gear and the detected portion determine the stop position of the rotary table even when the number of cassettes loaded increases, the detected portion for detecting the stop position is determined. It is not necessary to increase the number, and the position accuracy of the cassette number detection switch and the detected portion can be coarse. Also, since the output is detected from the reverse rotation (for normal rotation) rotary table stop position detection switch before the output is detected from the forward rotation (for reverse rotation) cassette stop position detection switch, the rotation speed of the rotary table drive motor is controlled. By doing so, it is possible to suppress the overrun from the target stop position of the rotary table and to increase the rotation speed of the rotary table, and it is possible to obtain an easy-to-use apparatus with a short cassette selection time.

Further, according to the present invention, since the tray portion projects only about one cassette when the cassette is loaded, the residual portion of the tray portion in the apparatus is long, and the distance between the tray portion supporting portions can be secured sufficiently. It becomes possible to suppress rattling. Also, the cassette replacement operation is the deck descending →
It is only necessary to perform the three operations of rotating the rotary table and raising the deck, and recording / reproduction of the next cassette can be performed quickly. Further, since the cassette at the recording / reproducing position is projected when the tray is opened, the desired cassette can be taken out by simply opening the tray when replacing the cassette that has been reproduced until then, which is convenient. Further, since the rotary table can rotate between the deck position and the cassette insertion / removal position, it is possible to increase the degree of freedom of the deck mounting position in the apparatus.

[Brief description of drawings]

FIG. 1 is a plan sectional view showing the whole of the present invention.

FIG. 2 is a plan sectional view showing a state in which a tray portion of the cassette loading device shown in FIG. 1 is pulled out.

FIG. 3 is a plan sectional view showing a state in which one cassette is mounted on the cassette loading device shown in FIG.

4 is a plan sectional view showing a state in which three cassettes are mounted on the cassette loading device shown in FIG.

5 is a plan sectional view showing a state where the tray portion of the cassette loading device shown in FIG. 4 is pulled into the device.

FIG. 6 is a cross-sectional plan view showing the structure of the rotary table of the present invention.

7 is a side sectional view of the cassette loading device shown in FIG. 6 viewed from the right side.

FIG. 8 is a side sectional view showing a state in which the cassette is mounted on the recording / reproducing apparatus.

9 is a rear cross-sectional view of the cassette loading device shown in FIG. 6 viewed from the rear.

FIG. 10 is a rear cross-sectional view showing a state where the cassette is mounted on the recording / reproducing apparatus.

FIG. 11 is a perspective view showing the configuration of the present invention.

FIG. 12 is a perspective view showing the configuration of the present invention.

FIG. 13 is a sectional plan view showing a conventional cassette loading device.

FIG. 14 is a sectional side view showing a conventional cassette loading device.

FIG. 15 is a cross-sectional side view showing a process in which the cassette is loaded into the recording / reproducing apparatus in the holder of the conventional cassette loading apparatus.

FIG. 16 is a cross-sectional side view showing a process in which a cassette in which recording or reproduction has been completed by the conventional cassette loading device is ejected from the recording / reproduction device.

[Explanation of symbols]

1 rotary table 1a Table side engaging part 2 trays 3 drive gear 4 Support rollers 10 decks 11 Forward rotation side stop position detection switch 12 Reverse rotation side stop position detection switch 13 Forward rotation side stop position detection switch Detected part 14 Reverse rotation side stop position detection switch Detected part 15 cassettes 16a, 16b Cassette position detector 17,18 Cassette number detection switch 19 Deck side engaging part 20 Tray closed position detection switch 21 Tray open position detection switch 22 Cassette feed switch M rotary table drive motor

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[Procedure amendment]

[Submission date] January 17, 1992

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Change

[Correction content]

Next, the operation will be described. First, when the tray open / close switch (not shown) is turned on when the cassette is not in the apparatus as shown in FIG. 1, the tray 2 is supported by the guide rails 5a and 5b as shown in FIG.
When the tray opening / closing drive device (not shown) comes out from the front of the device by about one cassette, the rotary table 1 is rotated by 180 degrees by the drive gear 3. In this state, the cassette 15a is placed on the rotary table 1 as shown in FIG.
Then, when the rotary table rotary switch (not shown) is pressed, the rotary table 1 is rotated by 120 degrees, and the next cassette can be received. Here the second cassette 15
When "b" is placed on the rotary table 1 and the rotary table rotary switch is pressed again, the rotary table 1 is rotated 120 degrees in the same manner, and the next cassette can be received.
Then, as shown in FIG. 4, the third cassette 15c is placed here. The process of rotating the rotary table 1 by a predetermined angle will be described below.

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

Claims (9)

[Claims] 1. A rotary table on which a reciprocable tray and a plurality of cassettes are mounted in a magnetic recording / reproducing apparatus for recording a signal on a tape-shaped recording medium housed in a cassette or reproducing a signal from the recording medium. A gear portion formed on the outer peripheral portion of the rotary table, a table side engaging portion formed on the rotary table, a drive gear for rotationally driving the rotary table, a support roller for positioning the rotary table in the radial direction, the rotation A cassette loading device comprising: a detection switch for detecting a stop position of a table; and a deck-side engagement portion formed on a vertically movable deck portion which is a recording / reproducing device. 2. One of the table-side engaging portion and the deck-side engaging portion has a hole or a concave shape and the other has a convex shape, and the receiving side of the hole or the concave engaging portion and the convex-shaped engaging portion. The cassette loading device according to claim 1, wherein at least one of the front end and the front end is tapered. 3. The cassette loading device according to claim 1, wherein the stop position of the rotary table is set slightly before the target position. 4. A rotary table on which a reciprocable tray and a plurality of cassettes are mounted in a magnetic recording / reproducing apparatus for recording a signal on a tape-shaped recording medium housed in a cassette or reproducing a signal from the recording medium. A gear portion formed on the outer peripheral portion of the rotary table, a drive gear for rotationally driving the rotary table, a support roller for positioning the rotary table in the radial direction, a detection switch for detecting a stop position of the rotary table, and a cover. The rotary table includes a detection unit, a detection switch for detecting the cassette number and a detected unit, and a deck unit that is a recording / reproducing device that can be moved up and down. When the number is Nd and the number of windings of the cassette mounted on the rotary table is Nc, the following relationship is satisfied: Nt = 2 × Nc × Nd. A cassette loading device to collect. 5. The cassette loading according to claim 4, further comprising a forward rotation side stop position detection switch and a reverse rotation side stop position detection switch of the rotary table, respective detected parts and a rotary table drive motor control part. apparatus. 6. A magnetic recording / reproducing apparatus for recording / reproducing a signal on / from a tape-shaped recording medium housed in a cassette, a reciprocable tray, a drive unit for driving the tray, and the tray. A switch for detecting the open position and the closed position of the rotary table, a rotary table on which a plurality of cassettes are placed, a drive unit for driving the rotary table, a detection switch for detecting the stop position of the rotary table, and this detection It is equipped with a detected part of the switch, a detection switch for detecting the number of the cassette, a detected part of the detection switch, and a deck part that is a recording / reproducing device that can be moved up and down, and one tray can be inserted into and removed from the cassette. A cassette loading device characterized in that it can be reciprocally moved for various distances. 7. An angle difference rotary table is rotated in association with the tray reciprocating motion between the position of the deck section and the position where the cassette is inserted into and removed from the rotary table.
Cassette loading device. 8. The rotary table is set to 3 when the tray is opened.
7. The cassette loading device according to claim 6, which is rotatable by 60 / (number of cassettes). 9. A switch which allows a user to rotate the rotary table every 360 / (number of cassettes) in the tray open state is provided at a position exposed from the apparatus in the tray open state. Or 8 cassette loading devices.