JPH03280250A - Cassette extruding device for cassette housing rack - Google Patents

Abstract

PURPOSE:To smoothly execute the extruding operation of a cassette by providing the cassette extruding device with three rack members, extruding the cassette by either one of a 2nd and a 3rd rack member and operating another mechanism with other rack member. CONSTITUTION:The 2nd and 3rd rack members 112, 113 are moved in the same direction by two mutually different strokes based upon an external input through an operation means and the cassette is extruded by either one of the members 112, 113. Thereby, only one of double pinions 117, 118 to be coaxially and unitedly rotated is used. Since the pinions 117, 118 are fixed to a cassette housing rack through a supporting spindle 116 and rotated on the fixed positions and guide shafts 110a, 110b for guiding the rack members 112, 113 is common are attached to the housing rack in the vicinity of the spindle 116, the size accuracy between the double pinions 117, 118 and the rack members 112, 113 and the accuracy of backlash variable can be improved, the rack members 112, 113 can be smoothly moved and the cassette can be smoothly extruded.

Description

[Detailed description of the invention] The present invention will be explained in the following order.

A. Field of industrial application B. Overview of the invention C. Prior art D. Problem to be solved by the invention E. Means for solving the problem F. Effect G. Example 01. Overall description of force set automatic changer (Fig. 8) 02 Explanation of the delivery means and shutter means of the storage rack for large and small cassettes (Figs. 5A to 7B) Description of the eject drive mechanism and cassette extrusion device of the G3 storage rack for large and small cassettes (Figs. 1A to 4C) Effect A: Industrial Field of Application The present invention relates to a cassette extrusion device for a cassette storage shelf, which is most suitable for application to a cassette autochanger that performs continuous video playback or recording over a long period of time, for example, in a television broadcasting station.

B. Summary of the Invention The present invention provides a cassette extrusion device for a cassette storage shelf applied to a cassette autochanger, etc., in which two rack members are moved in the same direction with different strokes by external input, and one rack member is moved in the same direction with different strokes. When ejecting the cassette, the first
By configuring the rack member to drive a double binion coaxially rotated together with the rank member, and to move the second and third rack members in the same direction with different strokes by the double binion. , it is possible to provide a cassette extrusion device with a simple structure and high precision.

C. PRIOR TECHNOLOGY The applicant of the present invention has disclosed a prior application example of a cassette extrusion device for a cassette storage shelf of a cassette autochanger using a video cassette throat, for example, the one described in the specification and drawings of Utility Model Application No. 63-47330. has been applied for first.

This prior application includes a first rack member which is movably attached to a cassette storage shelf and which is operated to move from a backward movement position to a forward movement position by an operating means inserted from the outside; a second rack member movably attached to the upper part; and a second rack member movably attached to the upper part of the second rack member and moved from a backward movement position opposite to the first rack member to a forward movement position. The third cassette extruder
a rack member, and first and second racks provided on the first rack member and the second rack member, and are engaged between these racks and rotatably mounted at a fixed position on the cassette storage shelf. a first rack/binion mechanism consisting of a first binion provided on the first and third rack members; third and fourth racks provided on the first and third rack members; a second rack/binion mechanism rotatably attached to the rack member; the first rack member is moved by the operating means; The third rank member is moved via the second rack and binion mechanism and the second rank member, and the third rack member pushes out the cassette in the cassette storage part, and The second rack member is used to operate other mechanisms.

D. Problems to be solved by the invention However, in the prior application example, each double 2Mi binion is required, and the problem is that the number of parts is large, the structure is complicated, the number of assembly steps is large, and the cost is high. was there.

In addition, a special guide mechanism is required to create a pitch between each rack member and each binion, and the movement of the second binion attached to the second rack member causes
Since the criteria for determining the pitch is constantly changed, there is a problem in that the dimensional accuracy between each rack and each binion and the backlash amount accuracy are poor.

The present invention has a structure for a cassette ejecting device for a cassette storage shelf configured to move two rack members in the same direction with different strokes by input from the outside, and push out a cassette with one rack member. The purpose is to enable easy and highly accurate configuration.

E. Means for Solving the Problems In order to achieve the above object, the cassette extrusion device for the cassette/nod storage shelf of the present invention is movably attached to the cassette storage shelf, and is reciprocally operated by an operating means inserted from the outside. a first rack member that is operated to move from a forward position to a forward position;
The first part is movably attached to the cassette storage shelf.
a second rack member that is moved from a backward movement position directly opposite to the forward movement position to the forward movement position; a third rack member that is moved from a backward movement position to a forward movement position;
a first pinion that is engaged with both the rack member; a second pinion that has a different diameter with respect to the first pinion and is engaged with the upper cassette storage shelf; and a second pinion that is fixed to the cassette storage shelf and that is a guide shaft that is disposed near the support shafts of the first and second pinions and that guides the second and third rank members in common; the first rack member is moved by the operating means; By doing so, the second and third rack members are moved with mutually different strokes via the first and second pinions,
Either one of the second and third rack members is configured to push out the cassette, and the other is configured to operate other mechanisms.

F. Function The cassette ejecting device for the cassette storage shelf configured as described above can be operated by the external input from the operating means.
and a third rack member are moved in the same direction with two different strokes, and either the second or third rack member pushes out the cassette, but the double rack member rotates together on the same axis. Since only one pinion is required, the number of parts and assembly man-hours can be reduced.

The double pinion is attached to the cassette storage shelf via a support shaft and rotated in a fixed position, and a guide shaft that commonly guides the second and third rack members is attached to the cassette storage shelf near the support shaft. Since it is attached, it is possible to improve the dimensional accuracy and backlash amount accuracy between the double pinion and the second and third rack members.

G. Embodiment Hereinafter, an embodiment in which the present invention is applied to a cassette autochanger using a video cassette will be described with reference to the drawings.

GI First, the entire cassette autochanger will be explained with reference to FIG.

First, this cassette autochanger can selectively use two types of cassettes, a large cassette 1 and a small cassette 2, which have different sizes. The front and rear shelf blocks have two front and rear rows of large and small cassette storage shelves 3 that can selectively store large and small cassettes 2 and are arranged in multiple vertical and horizontal rows. 4.5 is provided. A cassette transfer machine 6 disposed between the front and rear shelf blocks 4 is configured to be movable vertically and horizontally.
Recording and reproducing devices 7 are arranged in multiple stages above and below beside the moving route. Note that the cassette transfer device 6 can selectively transfer the large cassette 1 and the small cassette 2, and each recording/reproducing device 7 can selectively record and/or reproduce the large cassette 1 and the small cassette 2. It consists of a front-loading VTR that can be used to

The predetermined large and small cassette storage shelf 3 of the front shelf block 4 is configured as a shelf exclusively for taking in cassettes, and a cassette insertion slot 9 is provided on the operator side 8 which is the front side.
A cassette outlet 11 is provided on the cassette transfer machine side 10 which is the rear side.
is provided.

In addition, the other large and small cassette storage shelves 3 of the front shelf block 4 are provided with a cassette entrance/exit 12 on the cassette transfer machine side 10 which is the rear side, and all the large and small cassette storage shelves 3 of the rear shelf block 5 are A cassette inlet/outlet 12 is provided on the front side of the cassette transfer machine.

Next, the operation of this cassette autochanger will be explained.

First, when loading large and small cassettes 1.2, the operator sequentially inserts the large and small cassettes 1.2 into the large and small cassette storage shelf 3, which is dedicated to cassette loading, from the cassette insertion slot 9 by arrow a.
Insert in the direction. The inserted large and small cassettes 1.2 are automatically sent out sequentially in the direction of the arrow from the cassette delivery port 11 and received by the cassette transfer machine 6. During this time, the barcodes of the large and small cassettes 1 are read by a barcode league (none of which is shown). Thereafter, the large and small cassettes 1.2 are sequentially transferred by the cassette transfer machine 6 to the large and small cassette storage shelves 3 at the respective designated shelf addresses, and are inserted and stored in the direction of arrow C from the cassette entrance/exit 12, respectively.

Next, at the time of broadcasting, large and small cassettes 1.
The cassette is selectively taken out in the direction of the arrow C', transferred to the designated recording/reproducing device 7 by the cassette transfer device 6, and automatically inserted in the direction of the arrow d for recording or reproduction. The large and small cassettes 1 and 2 discharged from the recording and reproducing device 7 in the direction of the arrow d' after recording or playback are received by the cassette transfer device 6 and then stored in the large and small cassette storage shelf 3 at the original shelf address.
automatically returned to.

By repeating the above operations continuously,
It is possible to perform continuous video playback and recording over a long period of time.

Moreover, at this time, the small cassette 2, which is small in size (with a short recording time), is used to broadcast short-time programs such as commercials, and the large cassette 1, which is large in size and has a long recording time, is used to broadcast news, various programs, etc. It is possible to adopt a system in which the length of the broadcast time, etc. can be distinguished by the size of the large and small cassettes.

G2 Next, with reference to FIGS. 5A to 7B, the delivery means and shutter means of the large and small cassette storage rack 3 dedicated to taking in cassettes will be explained.

First, barcode labels 15a and 15b on which barcodes 14a and 14b are printed are pasted on one side 1a and 2a of the large and small cassette 1.2, and on the other side 1.
Opening/closing lids 1c and 2C are attached to b and 2b. Then, the barcodes 14a and 14b of the large and small cassettes 1.2
The barcode reader 16 that reads the cassette transfer machine 10
installed on.

Next, the large and small cassette storage shelf 3 has a shelf plate 1 formed of synthetic resin or the like on the top of a shelf chassis 18 made of sheet metal.
9 is installed horizontally. Then, the shelf board 19 and the shelf chassis 18 of the storage shelf 3 for both large and small cassettes arranged on the upper part.
A cassette storage section 20 is formed between the cassette storage section 20, a cassette insertion port 9 is provided on the operator side 8 of the cassette storage section 20, and a cassette delivery port 11 is provided on the cassette transfer device side 10. Then, the large and small cassettes 1.2 are selectively inserted into the cassette storage section 20 from the cassette insertion opening 9 in the direction of the arrow a in their longitudinal direction.

Next, a pair of inner walls 21a and 21b are placed on both left and right ends of the shelf board 19 to guide both left and right sides 1a and 1b of the large cassette 1.
are integrally molded.

Also, on the shelf board 19, both left and right sides 2a of the small cassette 2,
A small cassette guide 22, which is approximately in the form of a strip, is arranged parallel to the inner wall 21a to guide the small cassette guide 2b between the inner wall 21a and the inner wall 21a. The small cassette guide 22 is mounted on the shelf chassis 18 so as to be rotatable in the up and down directions of arrows e and e' about a fulcrum shaft 23, and is mounted on the shelf board 19 as shown in FIG. 5B. In the direction of arrows e and e', between the position where the cassette is inserted into the cassette storage part 20 through the elongated hole 25 and the position where it is released from the inside of the cassette storage part 20 below the 1llIFi 19 as shown in FIG. 5A. It is configured to be movable. Note that tapered surfaces 22b and 22c are provided at both front and rear ends of a guide surface 22a of the small cassette guide 22, which faces the inner wall 21a in parallel.

Next, a pair of left and right large cassette detection rollers 24a and 24b, which are large cassette detection means, are provided on both sides of the cassette insertion opening 9 side of the cassette storage section 20.
A large cassette detection roller 24 interlocked with a large cassette detection roller 24b is provided on one side of the cassette outlet 11 of the cassette 0.
c is provided. Note that these detection rollers 24a
, 24b, and 24c are located between the position where they are inserted into the cassette storage part 20 through the notches 26a, 26b, and 26c provided in both inner walls 21a, and the position where they are laterally released from the inside of the cassette storage part 20. It is configured to be movable in the left and right directions of arrows f and f'.

In the cassette storage section 20, on the shelf board 19, ejecting means 27a, 27b for the large and small cassettes 1.2, delivery means 28 for the large and small cassettes 1.2, and a shutter means 29 are provided. The shutter means 29 is moved between a closed position in which substantially the lower half of the cassette insertion port 9 is closed, as shown by the solid line in FIG. 7A, and a position in which the cassette insertion port 9 is opened, as shown in FIG. 7B. It is configured to be rotatable in the g and g' directions.

Next, the operations of the sending means 28 and the shutter means 29 will be explained.

First, in the state before the cassette is inserted, the shutter means 29 and the delivery means 28 are moved together by the arrow g' as shown in FIG. 7B.
The cassette insertion port 9 is opened.

Further, large cassette detection rollers 24a, 24b, and 24c are inserted into the cassette storage section 20 in the direction of arrow f, as shown by the dashed line in FIG. 5A, and the small cassette guide 22
As shown in FIG. 5B, there is an arrow e inside the cassette storage section 20.
inserted in the direction.

Therefore, as shown by solid lines in FIGS. 5B, 6B, and 7B, the operator inserts the small cassette 2 into the cassette insertion slot 9.
Then, insert it between the inner wall 21a of the cassette storage section 20 and the small cassette guide 22 in the direction of arrow a.

At this time, as shown by the solid line in FIG. 6B, one of the large cassette detection rollers 2 is
4a escapes out of the cassette storage section 20 in the direction of arrow f', but the small cassette guide 22 is retained within the cassette storage section 20 as shown in FIG. 5B.

Therefore, the guide surface 22a of the small cassette guide 22 reliably guides the side surface 2b of the small cassette 2.

At this time, the front end surface 2d of the small cassette 2 pushes the ejecting means 27b in the direction of arrow a, and the small cassette 2 is inserted into the cassette storage section 20 to the normal position shown by the solid line in FIGS. 6A and 7A. By the way, the ejecting means 27b
Almost at the same time that the small cassette 2 is locked and the insertion of the small cassette 2 is stopped, the delivery means 28 and the shutter means 29 are moved together in the direction of arrow g as shown by the solid line in FIG. 7A, and the delivery means 28 is stopped. While being engaged with the rear end surface 2e of the small cassette 2, the cassette insertion port 9 is closed by the shutter means 29.

Therefore, from this point on, the operator must select the large and small cassettes.
．． 2 into the cassette storage section 20 from the cassette insertion opening 9.

Next, as shown by dashed lines in FIGS. 5A, 6B, and 7B, the operator inserts the large cassette 1 through the cassette insertion slot 9 into the pair of inner walls 21a, 21 in the cassette storage section 20.
Insert in the direction of arrow a between spaces b.

At this time, as shown by the solid line in FIG. 6B, a pair of large cassette detection 2
4a and 24b are both released outside the cassette storage section 20 in the direction of arrow f', the small cassette guide 22
As shown in the figure, the ejecting means 27b is automatically ejected out of the cassette storage portion 20 in the direction of the arrow e', and the ejecting means 27b is also moved from the locked position shown by the solid line to the non-locked position shown by the dashed-dotted line in the direction of the arrow in FIG. 7B. will be automatically released.

Therefore, the small cassette guide 22 and the ejecting means 27
b does not become an obstacle to insertion, and the large cassette 1 can be smoothly inserted into the cassette storage part 20.

At this time, the front end surface 1d of the large cassette 1 pushes the ejecting means 27a in the direction of the arrow a, and when the large cassette 1 is inserted into the cassette storage section 20 to the proper position shown by the dashed line in FIG. 6A, Almost at the same time as the ejecting means 27a is locked and the insertion of the large cassette 1 is stopped, the ejecting means 28 and the shutter means 29 are moved together in the direction of the arrow g as shown by the solid line in FIG. The means 28 is engaged with the rear end surface 1e of the large cassette 1, and the cassette insertion opening 9 is closed by the shutter means 29.

Next, in this way, the operator selects the large and small cassettes 1.
2 is selectively inserted into the cassette storage section 20 from the cassette insertion opening 9, the operation means of the cassette transfer device 6 performs the first operation of the large and small cassette storage shelf 3.

Then, the ejecting means 27a and 27b are ejected from the locked position shown by the solid line to the non-locked position shown by the dashed line in FIG. The cassette is then sent into the cassette transfer machine 6 in the direction of the arrow. The delivered large and small cassettes 1.2 are received in the cassette transfer machine 6 by a conveyor belt (not shown) of the cassette transfer machine 6.

At this time, the barcodes 14a and 14b on the sides 1a and 2a of the large and small cassettes 1.2 are automatically read by the barcode reader 16, and the number and contents of the large and small cassettes 1.2 are detected.

Next, in this way, after the large and small cassettes 1.2 in the cassette storage section 20 are sent out from the cassette outlet 11 into the cassette transfer machine 6 in the direction of the arrow, the operating means of the cassette transfer machine 6 is used for both large and small cassettes. The storage shelf 3 is operated for the second time.

Then, the ejecting means 27a, 27b are unlocked, and after the ejecting means 27a, 27b are rotated from the non-engaged position to the engaged position in the direction of arrow h', from the forward movement position of FIG. 7A to the forward movement position of FIG. 7B. At the same time, the delivery means is moved back in the direction of arrow a' to the return position of 1 in FIGS. 6A and 7A.
It is moved backward in the direction of arrow a' from the forward movement position indicated by the dotted chain line to the backward movement position indicated by the solid line.

When the delivery means 28 is moved backward to the return position, the delivery means 28 and the shutter means 29 are rotated -1 in the direction of arrow g' as shown in FIG. 7B, and the cassette insertion opening 9 is opened again, and from this point on, the operator can reinsert the large and small cassettes 1.2 into the cassette storage section 20 through the cassette insertion opening 9.

By repeating the above operations, the large and small cassettes 1.2 can be sequentially and continuously fed into the cassette transfer machine 6 from the large and small cassette storage shelf 3.

As shown in FIGS. 6A and 7A, after returning the large and small cassettes 1.2 from the cassette transfer device 6 through the cassette outlet 11 into the cassette storage section 20 in the direction of arrow b', they are sequentially transferred to the operator side 8. When ejecting successively, the large and small cassettes 1.2 are accurately returned to their respective positions within the cassette storage section 20 by the conveyor belt of the cassette transfer device 6. Therefore, for the small cassette 2, there is an arrow b' between one inner wall 21a and the small cassette guide 22.
It can be inserted in the correct direction. Also, at this time, since the ejecting means 27a and 27b are moved in the direction of arrow a and locked, when the large cassette detection roller 24c is released in the direction of arrow f' due to insertion of the large cassette 1 in the direction of arrow b'. , the small cassette guide 22 is the fifth
As shown in Figure A, the large cassette 1 is released in the direction of the arrow e', allowing insertion of the large cassette 1 into the cassette storage section 20 in the direction of the arrow b'.

When the large and small cassettes I and 2 are inserted into the cassette storage section 2o in the direction of arrow b' in this manner, the feeding means 28 is pushed in the direction of arrow a' by the rear end surfaces 1e and 2e of the large and small cassettes 1.2. It will be done.

When the large and small cassettes 1.2 are inserted into the cassette storage section 20 in the direction of arrow a' to the proper position shown by the dashed line and solid line, the ejecting means 27a and 27b move toward the arrow h.
' direction and the front end surface 1d of the large and small cassette 1.2,
2d.

After this, as shown in FIGS. 5B and 6B,
When the operator presses the eject button 71 on the operator side 8, the delivery means 28 and the shutter means 29 are released in the direction of arrow g' in FIG. 6B, and the cassette storage section 20
The inner large and small cassettes 1.2 are eject means 27a, 27
b, the cassette is automatically ejected from the cassette insertion slot 9 in the direction of arrow a'.

Next, after ejecting the large and small cassettes 1.2 in the cassette storage section 20 from the cassette insertion opening 9 in the direction of arrow a', The second operation is performed.

Then, after the shutter means 29 and the delivery means 28 are rotated in the direction of the arrow g to the position indicated by the solid line in FIG. 7A, the delivery means 2
8 is moved forward again in the direction of arrow a from the backward movement position indicated by the solid line to the forward movement position indicated by the dashed-dotted line in FIG. 6A. At the same time, the ejecting means 27a and 27b are also moved forward again in the direction of arrow a from the backward movement position in FIG. 6B to the forward movement position in FIG. The large and small cassettes 1.2 are rotated in the direction of the arrow h' in preparation for the next return from the cassette transfer machine 6 to the cassette storage section 20 in the direction of the arrow h'.

By repeating the above operations, the large and small cassettes 1 and 2 can be returned from the cassette transfer machine 6 to the large and small cassette storage shelf 3, and then sequentially and continuously ejected from the large and small cassette storage shelf 3 to the operator side 8.

G3 Next, the eject mechanism and cassette extrusion device of the large and small cassette storage shelf 3 will be explained with reference to FIGS. 1A to 4C.

First, as shown in FIGS. 3A to 3E, the small cassette guide 22 in the form of a strip is made of synthetic resin or the like, and has a pair of front and rear guides integrally molded on the side opposite to the guide surface 22a. The arm 3o is attached to a pair of fulcrum shafts 2 on the shelf chassis 18.
3 so as to be rotatable in the directions of arrows e and e' in FIGS. 4A and 4B. And a pair of arms 3o
A pair of ribs 31 having slopes on the lower surface are integrally molded substantially vertically. A lock plate 32 disposed on the shelf chassis 18 at the bottom of the pair of ribs 31 is guided by a pair of guide pins 33 and a pair of elongated holes 34 in the directions of arrows a and a' parallel to the small cassette guide 22. It is configured to be movable. Furthermore, a rib 35 is integrally molded almost vertically on the lower surface of the front end surface of the small cassette guide 22, and a lock plate 36 disposed on the shelf chassis 18 is connected to the guide bin 37 and the elongated hole 38 at the bottom of the rib 35. It is configured to be guided and movable in directions of arrows f and f' perpendicular to the small cassette guide 22.

Next, a large cassette detection roller 24a is attached to the tip, and arrows f, f are shown on the shelf chassis 18 via the fulcrum shaft 41a.
A lever 40a spring 4 is attached so as to be rotatable in the ``direction''.
2a to rotate in the direction of arrow f. Also,
A lever 40 has large cassette detection rollers 24b and 24c attached to its tips, and is rotatably attached to the shelf chassis in the directions of arrows f and f' via fulcrum shafts 41b and 41c.
a and 40b are connected to a pair of arms 43 integrally formed at both front and rear ends of the lock plate 32 via a pin 44 and a long hole 45, and the lock plate 32 is biased forward in the direction of arrow a by a spring 42b. The pair of levers 40b and 40c are urged to rotate in the direction of arrow f. Further, a slider 48 is mounted on the shelf chassis 18 via a pair of guide bins 46 and a long hole 47 so as to be movable in the directions of arrows a and a', and is urged to move in the direction of arrow a' by a spring 49. A pair of ejecting means 27a and 27b are mounted on the slider 48 so as to be rotatable in the direction indicated by the arrow h' in FIG. 6A about a pair of fulcrum shafts 5a and 50b. Also, a lock lever 5 is placed on the shelf chassis 18.
1 is attached to be rotatable in the directions of arrows i and i' around a fulcrum shaft 52, and a lock pin 53 attached to the tip of the conorock lever 51 is a lock step provided on the front end side of the slider 48. A pin 55 provided on the lock lever 51 is inserted into an elongated hole 38 of the lock plate 36.

In addition, a long hole 56 provided at the tip of the lock plate 36
A pin 57 provided on the lever 41a is inserted inside. Further, a slider 58 disposed across the lock plate 32 is attached to the shelf chassis 18 through a pair of guide pins 59 and a long hole 60 so as to be movable in the directions of arrows f and f'. is urged to move in the direction of arrow f'. Then, the pin 62 provided on the slider 58 is brought close to the inclined portion 63 integrally formed on a part of the lock plate 32, and the arrow f,
The ejecting means 27b is disposed movably in the f' direction.
A control plate 64 for controlling the slider 58 is engaged with a pair of long holes 65 provided in the slider 58 by a pair of pins 66 .

Next, an eject button 71 serving as eject operation means is attached to one side of the cassette insertion slot 9. This eject button 71 is inserted into a hole 73 of a front panel 72 from the rear so as to be movable in the direction of arrow Lj, and an eject lever 74 fixed to the rear end of the eject button 71 is
It is engaged with a pin 77 at one end of a lever 76 rotatably mounted on the shelf chassis 18 via a fulcrum shaft 75.

The other end of the lever 76 is rotatably connected via a pin 79 to a lever 78 rotatably mounted on the shelf chassis 18 via a fulcrum shaft 77, and is connected to the lock lever 51 and the lever 78 through a pin 79. 78 are rotatably connected by pins 81 and 82 at both ends of the link 80. In addition,
The lever 78 is biased by a spring 83 to rotate in the direction of the arrow.

Next, the control plate 8 that controls the ejecting means 27a
9 is mounted on the shelf chassis 18 through a pair of elongated holes 90 and a guide pin 91 so as to be movable in the directions of arrows a and a', with a portion of the control plate 89 straddling the slider 48 . A portion thereof is connected via an elongated hole 93 to a pin 92 of a control plate 64 that controls the ejecting means 27b so as to be relatively movable in the directions of arrows f and f'. On the pair of control plates 64, 89, there are slopes 64a, 89a and horizontal protrusions 64b, 89b that control a pair of ribs 94a, 94b integrally formed on the lower surfaces of the pair of ejecting means 27a, 27b. It is integrally molded.

Next, a control lever 94, which is a control means for controlling both control plates 64 and 89, is mounted on the shelf chassis 18 via a fulcrum shaft 95 so as to be freely rotatable in the directions of arrows n and n'. This control lever 94 has four arms 94a to 94d.
is integrally molded, and the tip of the arm 94a has a long hole 96.
It is rotatably connected to the control plate 89 via a hinge 97. Note that there is a roller 98 at the tip of the arm 94b.
is attached, and pins 9 are attached to the tips of arms 94c and 94d.
9.100 is provided. And shelf chassis 18
A lever 101 is placed near the lever 76 on the fulcrum shaft 10.
2, one end of which is rotatably connected to the lever 101 via a pin 102, and the other end of the link 107 is rotatably connected to a pin 99 at the tip of the arm 94c of the control lever 94. The control lever 94 is urged to rotate in the direction of arrow n by a spring 103.

Next, FIGS. 1A to 2 show a cassette extrusion device.

This cassette extrusion device includes a slider 108 molded from synthetic resin, rack members 112 and 113, and a small pinion 117 and a large pinion 118 that are coaxially rotated together.
It is composed of etc.

A rack member 10, which is a first rack member, is placed on the shelf chassis 18 at a position biased toward the cassette outlet 11.
9 includes a pair of guide shafts 110a, 110b and a long hole 111.
The slider 108 is mounted so as to be movable in the directions of arrows a and a' through the guide grooves 141, and is disposed between the shelf chassis 18 and the rack member 109. It is fitted so that it can move freely. Note that the slider 108 is urged to move in the direction of arrow a by a spring 119. In addition, shelf chassis 1
A rack member 112, which is a second rack member, is located at a position biased toward the cassette insertion port 9 on the pair of guide shafts 11.
4a, 114b and elongated holes 115a, 115b so as to be movable in the directions of arrows a and a'. A rack member 113, which is a third rack member, is attached to the rack member 112 so as to be movable in the directions of arrows a and a' while being guided by a pair of guide grooves 142 integrally formed in the rack member 112. . Then, double pinions 117 and 118 are mounted on both rack members 1 on the shelf chassis 18.
A small-diameter pinion 117 is rotatably installed between rack members 109 and 112 via a support shaft 116.
．． A pair of racks 109a integrally formed on the sides of 112
, 112a, and a large diameter pinion 118 is meshed with a rack 113a integrally formed on the side surface of the rack member 113. Then, one side 1 of the slider 108
A slope 108b is integrally formed on the rack member 11.
There is also a slope 112 at the end of the side surface 112b of No. 2 in the direction of the arrow a.
C is provided. The delivery means 28, which has a substantially L-shaped vertical cross section, is attached to the sixth end of the rack member 113 on the cassette insertion port 9 side via the fulcrum shaft 120.
In figure A, it is mounted so as to be rotatable in the directions of arrows g and g'.

Next, as shown in FIGS. 3A to 3E, the sending means 28
Similarly, the shutter means 29 is molded from synthetic resin or the like, and the shutter means 29 has a substantially U-shape in plan view and a substantially L-shape in vertical cross section. The shutter means 29 is mounted on the shelf chassis 18 via a pair of fulcrum shafts 124 at approximately the center of the cassette insertion slot 9.
Between the closed position shown by the solid line in the figure (the position where almost the lower half of the cassette insertion port 9 is closed) and the open position shown by the dashed-dotted line in FIG. 7A (the position where the cassette insertion port 9 is opened)
, g' directions so as to be rotatable. A recess 125 into which the delivery means 28 is fitted is provided approximately at the center of the shutter means 29, and a support plate 126 for the delivery means 28 is integrally formed at the bottom of the recess 125.

Next, a control plate 127 is mounted on the shelf chassis 18 at the bottom of the shutter means 29 with a pair of guide pins 128 and an elongated hole 1.
29 so as to be movable in the directions of arrows f and f'. A pair of arms 127a that control a pair of ribs 130 having slopes integrally formed on the lower surface of the shutter means 29 are integrally formed on the control plate 127. Note that this control plate 127 is connected to a spring 131.
is urged to move in the direction of the force indicated by the arrow f'.

A pin 132 attached to the other end of the lock lever 51 is engaged with a long hole 133 of the control plate 127. Also, the pin 13 at the free end of the lever 101
4 is in contact with one arm 127a of the control plate 127 from the direction of arrow f.

Next, as shown in FIGS. 4A to 4C, the slider 10
A switching lever 7136 is mounted on the shelf chassis 18 for switching and transmitting the moving force of the rack member 109 and the opening lever 53.

This switching lever 136 is engaged with a pin 137 fixed on the shelf chassis 18 through an elongated hole 138 extending in the directions of arrows a and a'.
It is configured to be rotatable in the ' direction. The switching lever 136 is biased to rotate in the direction of the arrow by a spring 139, and its end 136a on the side of the arrow a is brought into contact with the side plate 109C of the rack member 109 from the direction of the arrow.

Note that a slope 136b is provided on the side surface of the end 136a of the switching lever 136 on the rack member 109 side, and
A notch 109d is provided at the end of the side plate 109C of the rack member 109 in the direction of the arrow a, the end 136a of which can fit into the lower part of the rack member 109 in the direction of the arrow e. A switching lever 139 is provided on the side of the slider 108.
The rib 10 that can come into contact with the end 136a of the
8C is integrally molded. Further, the end 136c of the switching lever 136 in the direction of arrow a' is connected to the lever 7 connected to the lock lever 51 via the link 80 as described above.
8 from the direction of arrow a'.

Next, the operation of the eject mechanism and cassette extrusion device of this large and small cassette storage shelf 3 will be explained.

First, before the cassette is inserted, the shutter means 29 is rotated to the open position in the direction of arrow g', as shown in FIG. 7B, and the delivery means 28 is fitted into the recess 125 of the shutter means 29 is also rotated in the direction of arrow g' to the non-locking position.

In addition, as shown in FIGS. 1A and 4A, the slider 1
08 and the rack member 109 are both moved back in the direction of the arrow a, and a gap of a small stroke S1 is formed between these ends 108C and 109b. And the fourth
As shown in Figure A, the end 136a of the switching lever 136 is brought into contact with the side plate 109C of the rack member 109 in the direction of the arrow.

Therefore, when the operator inserts the large cassette 1 into the cassette storage section 20 from the direction of arrow a as shown in FIG. 3B from the state before the cassette insertion shown in FIG. 3A, the two-person cassette detection roller 24a, 24b is released in the direction of arrow f', both levers 40a and 40b are rotated in the direction of arrow f' against the springs 42a and 42b, and the lock plate 32 is moved forward in the direction of arrow a'. The lock plate 36 is also moved forward in the direction of arrow f' via the pin 57 and the elongated hole 56. Then, the pair of ribs 31 fall into the pair of elongated holes 34, and the lock plate 36 escapes from the lower part of the rib 35 in the direction of arrow f', so that the small cassette guide 22 moves under its own weight in the direction of arrow f' as shown in FIG. 5A. It rotates in the e' direction and escapes to the outside of the cassette storage section 20 (below the shelf board 19). At this time, the small cassette guide 22 may be moved in the direction of arrow e by a spring (not shown).

At this time, the pin 62 of the slider 58 is driven by the inclined portion 63 of the lock plate 32, which is moved forward in the direction of the arrow a', and the slider 58 is moved in the direction of the arrow f against the spring 61. The control plate 64 is moved in the direction of the arrow f through the hole 65 and the pin 66, and the protrusion 64a escapes to one side from the rib 94b of the ejecting means 27b, so that the ejecting means 27b is moved as shown in FIG. 7A. It is released from the inside of the cassette storage section 20 in the direction of the arrow h' force.

Then, the front end surface 1d of the large cassette 1 inserted into the cassette storage section 20 in the direction of the arrow a pushes the ejecting means 27a in the direction of the arrow a, so that the slider 48 is moved forward in the direction of the arrow a against the spring 49. Ru.

At this time, the rib 94a of the ejecting means 27a moves on the protrusion 89b of the control plate 89 in the direction of arrow a.

Then, at the moment when the large cassette 1 is inserted into the cassette storage section 20 to its proper position, the lock lever 51 is moved to the position indicated by the arrow i.
When the lock pin 53 is rotated in the direction shown in FIG.
is engaged to lock the slider 48.

At this time, the pin 55 of the lock lever 51 moves to the end of the elongated hole 38 of the lock plate 36 in the direction of the arrow f', and thereafter, the lock plate 36 is held so as not to be moved back in the direction of the arrow f. , the pin 133 of the lock lever 51 rotated in the direction of the arrow i comes into contact with the end of the elongated hole 133 of the control plate 127 from the direction of the arrow f, and moves the control plate 1-127 in the direction of the arrow f'.

Then, since the pair of ribs 130 of the shutter means 29 relatively ride on the pair of arms 127a of the control plate 127, the shutter means 29 is rotated in the direction of arrow g to the closed position, as shown by the solid line in FIG. 7A. The shutter means 29 closes the cassette insertion opening 9. and,
Since the delivery means 28 fitted in the recess 125 of the shutter means 29 is also pushed up by the support plate 126 of the shutter means 29, this delivery means 28 is also moved to the engagement position by the arrow g.
direction, and is engaged with the rear end surface 1e of the large cassette 1.

Next, as shown in FIG. 3B, when the operator inserts the small cassette 2 into the cassette storage section 20 from the direction of the arrow a, the large cassette detection roller 24a moves toward the direction of the arrow f'.
Although the lock plate 36 is moved forward in the direction of the arrow f' by the lever 40a, the large cassette detection roller 24b is not moved in response, so the lock plate 32 is not moved forward in the direction of the arrow a'.

Therefore, at this time, the pair of ribs 31 remain on the lock plate 32, and the small cassette guide 22 is maintained inserted into the cassette storage section 20 as shown in FIG. 5B. The cassette 2 can be inserted into the normal position between the one inner wall 21a and the small cassette guide 22 in the direction of arrow a.

Then, the front end surface 2d of the small cassette 2 inserted into the cassette storage section 20 in the direction of arrow a pushes the ejecting means 27b, and the slider 48 is moved forward in the direction of arrow a against the spring 49, and the lock lever 51 At the same time, as shown by the solid line in FIG. 7A, the delivery means 28 and the shutter means 29 are rotated in the direction of the arrow g, and the cassette insertion opening 9 is closed by the shutter means 29.
The ejecting means 28 is engaged with the rear end surface 2e of the small cassette 2. At this time, the rib 94b of the ejecting means 27b moves on the protrusion 64b of the control plate 64 in the direction of arrow a.

Next, as shown in FIG. 3C, when sending out the large and small cassettes 1.2 in the cassette storage section 20 from the cassette outlet 11 to the cassette transfer machine 6 in the direction indicated by the arrow, the large and small cassettes are The operating means 122 is inserted horizontally into the dual-purpose storage shelf 3 in the direction of arrow b' as a first operation.

This operating means 122 is located at the end 1 of the slider 108.
08C and slides this slider 108 in the direction of arrow a' against the spring 119. At this time, the slider 108 makes a small stroke S.

By moving the slider 108 in the direction of arrow a', the slope 108b of the slider 108 touches the roller 98 of the control lever 94.
is pushed up onto the side surface 108a, and the control lever 94 is rotated in the direction of arrow n' against the spring 103.

Then, the control plate 89 is moved in the direction of arrow a' by the control lever 94, and this control plate 89 moves the control plate 64 in the direction of arrow a'. As a result, both control plates 64, 89 are moved relative to the slider 48 by the arrow a'.
direction, the ribs 94a194b of both ejecting means 27a, 27b fall relatively from above both protrusions 89b, 64b toward slopes 89a, 64a, and these ejecting means 27a, 27b are moved in the direction shown in FIG. 7A. It is rotated in the direction of the arrow by its own weight from the locked position shown by the solid line to the non-locked position shown by the dashed line. At this time, both ejecting means 27a and 27b may be rotated in the direction of the arrow by means of springs.

Then, when the control lever 94 is rotated in the direction of the arrow n', the lever 101 is rotated in the direction of the arrow P via the link 107, and the pin 134 is attached to one arm 127a of the control plate 127 from the direction of the arrow f. be touched. Due to the contact between the pin 134 and the arm 127a, the control plate 127 is locked from being moved back in the direction of arrow f', and the shutter means 29 is locked in the closed position.

On the other hand, as shown in FIGS. 1B and 3C, the slider 1
08 is moved in the direction of arrow a' by a small stroke SI, its end 108C touches the end 10 of the rack member 109.
9b, and then the slider 108 and the rack member 1
09 are moved together by the operating means 122 in the direction of arrow a' across the large stroke S.

At this time, as shown in FIG. 4B, just before the end 136a of the switching lever 136 is relatively removed in the direction of the arrow a from the side plate 109C of the rack member 109 that is moved in the direction of the arrow a', the end 136a Since the rib 108C of the slider 108 is inserted between the slider 108 and the rack member 109 in the direction of arrow C, the switching lever 139 is maintained at the position shown by the solid line in FIG. 4B, which is the same position as in FIG. 4A.

Then, the rack 109a of the rack member 109 that is moved in the direction of arrow a' rotates the binions 117 and 118 in the direction of arrow r, and these binions 117 and 118 move both rack members 1 through both racks 112a and 113a.
12 and 113 are simultaneously slid in the direction of arrow a. At this time, depending on the gear ratio of both pinions 117 and 118, the rack member 113 is moved in the direction of arrow a at a faster speed (for example, twice the speed) than the rack member 112.

Then, the large and small cassettes 1.2 are delivered to the cassette delivery port 11 by the delivery means 28 attached to the rack member 113.
The cassette is automatically fed into the cassette transfer machine 6 in the direction of the arrow (
extrusion) At this time, the delivery means 28 slides on the rack member 112 while maintaining the engaged position.

At this time, the pin 100 of the control lever 94 rides on the one side surface 112b from the slope 112c of the rack member 112, and the control lever 94 is locked in the rotated position in the direction of arrow n''.

Note that after the large and small cassettes 1.2 are sent into the cassette transfer machine 6, the operating means 122 of the cassette transfer machine 6 is moved back in the direction of the arrow mark, and only the slider 108 is moved back in the direction of the arrow a by the spring 119. Ru.

Then, as shown in FIG. 4B, when the slider 108 is moved back in the direction of the arrow a from the solid line position to the one-dot chain line position, the switching lever 136 moves the guide bin 137 from the solid line position to the one-dot chain line position. The spring 139 also rotates the arrow in the direction of the arrow, so that the end 136a of the rack member
9 in the direction of the arrow, and the notch 138 of the switching lever 136 is parallel to the rack member 109 and the slider 108.

Next, as shown in FIG. 3D, the operating means 122 is inserted horizontally from the cassette transfer device 6 into the storage shelf 3 for large and small cassettes in the direction of arrow b' as a second operation.

Then, as shown in FIG. 4C, the slider 108 is moved by the operating means 122 in the direction of the arrow a by a stroke S++SZ, and just before the end of that stroke, the tip of the rib 108c touches the switching lever 136. The switching lever 136 is moved along the elongated hole 138 against the small stroke s3 spring 139 in the direction of the arrow a'.

As a result, the end 136C of the switching lever 136 comes into contact with the end 78a of the lever 78, and the lever 78 is rotated in the direction of the arrow '' against the spring 83, as shown in FIG. 3D. , the lock lever 51 is rotated in the direction of arrow i' by the lever 78 via the link 80, and the slider 48
will be unlocked. Note that after this, the operating means 122 is quickly moved back in the direction of the arrow, and the slider 108 also releases the spring 1.
19, it is moved back in the direction of arrow a. At this time, the pin 132 of the lock lever 51 escapes in the elongated hole 133 of the control plate 127 in the direction of arrow f'.

Then, the slider 48 is moved back in the direction of arrow a' by the spring 49, and the ejecting means 27a and 27b move in the direction of arrow a'.
It will be moved back in the direction.

At this time, the protrusion 48a integrally formed on the side surface of the slider 48 on the rack member 112 side comes into contact with the end 112b of the rack member 112 from the direction of the arrow a, and the slider 48 moves the rack member 112 along the arrow a. ’ direction. Then, the rack 112 of the rack member 112
a rotates the pinions 117 and 118 in the direction of arrow r', and at the same time the rack member 113 is moved back in the direction of arrow a', the rack member 109 is moved back in the direction of arrow a. Then, the rack member 113 moves the delivery means 28 to the direction indicated by the arrow a.
’ direction.

However, at this time, as shown in FIG. 3E, the side surface 112b of the rack member 112 does not move through the pin 100 until the delivery means 28, which is moved backward in the direction of arrow a', reaches the backward movement position shown in FIG. 3B. The control lever 94 is locked.

Then, as shown in FIG. 3B, the sending means 28 is
After completing the return movement in the 'direction, the sending means 28 releases the shutter means 2.
At about the same time that the pin 100 of the control lever 94 is refitted into the recess 125 of the rack member 112,
12b falls to the slope 112c side, and the control lever 94
is rotated by the spring 103 in the direction of arrow n.

Then, lever 101 moves in the direction of arrow r' via link 107.
Since the pin 134 escapes from one arm 127a of the control plate 127 in the direction of the arrow f', the control plate 127 is moved back in the direction of the arrow f' by the spring 131. A pair of ribs 1 of the shutter means 29
30 relatively slides down below the pair of arms 127a of the control plate 127.

As a result, as shown in FIG. 7B, the shank means 29 and the delivery means 28 are rotated together by their own weight in the direction of arrow g, and the cassette insertion opening 9 is opened, leaving everything in the state shown in FIG. 3A. to return to.

As described above, from the cassette insertion slot 9 to the cassette storage section 2,
When inserting large and small cassettes 1.2 into 0 in the direction of arrow a,
The shutter means 29 closes the cassette insertion port 9, and then the delivery means 28 sends out the large and small cassettes 1.2 in the cassette storage section 20 from the cassette delivery port 11 into the cassette transfer machine 6 in the direction indicated by the arrow. The shutter means 29 closes the cassette insertion opening 9 until the means 28 completes its return movement in the direction of arrow a' to the return position on the side of the cassette insertion opening 9, and the delivery means 28 returns. The shutter means 29 is rotated to the open position and the cassette insertion slot 9 is opened only when the return movement to the moving position is completed.

Therefore, during the backward motion of the delivery means 28 in the direction of arrow a', the operator enters the cassette storage section 2 from the cassette insertion slot 9.
It is possible to prevent an accident in which the large and small cassette 1.2 collides with the reciprocating sending means 28 due to incorrect insertion of the large and small cassette 1.2 in the direction of the arrow a.

Next, the large cassettes 1.2 are returned from the cassette transfer device 6 into the cassette storage section 20 through the cassette outlet 11 in the direction of arrow b', and then sequentially and continuously ejected to the operator side 8. In this case, in the state shown in FIG. 3A, as shown in FIG. 3E, the large and small cassette storage rack 122 is inserted horizontally in the direction of arrow b' from the cassette transfer device 6 as a third operation.

Then, as shown in FIG. 1B, the slider 108 is moved by the operating means 122 by a stroke S, +S2 in the direction of the arrow a', and both rack members 112, 113 are moved in the direction of the arrow a' via the pinion 117, 11B, as described above. They are moved in the a direction at different speeds.

At this time, as shown in FIGS. 1B and 3E, the end 112b of the rack 112 moved in the direction of arrow a comes into contact with and pushes the protrusion 48a of the slider 48, and the slider 48 resists the spring 49. 3 from the return position shown in Figure 3A.
The ejecting means 27a and 27b are moved forward in the direction of arrow a to the forward movement position shown in Figure B and locked by the lock lever 51, and the ejecting means 27a and 27b are moved in the direction of arrow a from the backward movement position of Figure 6B to the forward movement position of Figure 6A. After being moved forward, it is moved in the direction of the arrow to the non-locking position shown by the dashed line in FIG. 7A. At the same time, the movement of the rack member 113 in the direction of the arrow a causes the shutter means 29 and the delivery means 28 to move to the seventh position.
After being rotated in the direction of arrow g from the position shown in Figure B to the position shown by the solid line in Figure 7A, the delivery means 28 moves from the backward movement position shown by the solid line to the forward movement position shown by the dashed-dot line in Figures 6A and 7A. It is moved forward in the direction of arrow a.

As described above, from the cassette transfer machine 6 to the cassette storage section 20
The preparation for receiving the large and small cassettes 1 and 2 is completed,
The state will be the same as in FIG. 3C.

Therefore, as shown in FIG. 3B, when the large cassette 1 is returned from the cassette transfer device 6 into the cassette storage section 20 in the direction of arrow b', the lock plate 36 is moved forward in the direction of arrow f' by the lock lever 51. In this state, the large cassette detection roller 24c is released in the direction of arrow f', and the lever 4
Since the lock plate 32 is moved forward in the direction of arrow a' by 0c, the small cassette guide 22 is released from the inside of the cassette storage portion 20 in the direction of arrow a' as shown in FIG. 5A. Then, the delivery means 28 is pushed in the direction of arrow a' by the rear end surface 1e of the large cassette 1 inserted into the cassette storage portion 20 in the direction of arrow a'.

Further, as shown in FIG. 3B, when the small cassette 2' is returned from the cassette transfer device 6 into the cassette storage section 20 in the direction of arrow b', the small cassette 2 is moved to the inner wall 21a regardless of the large cassette detection roller 24c. and the small cassette guide 22, and the rear end surface 2 of the small cassette 2
e pushes the delivery means 28 in the direction of arrow a'. Note that at this time, the large and small cassettes 1.
2 is configured to be pushed in the direction of arrow a' into the cassette storage portion 2o by the pushing arm 67 of the cassette transfer device 6 to the proper position shown in FIG. 3B.

After that, when the operator pushes the eject button 71 in the direction of the arrow j', the eject lever 74 moves the lever 78 via the lever 76 against the spring 83 in the direction of the arrow j'.
the lock lever 51 via the link 80.
is rotated in the direction of arrow i'. Then, the sending means 2
8 and shutter means 29 as shown in FIG. 7B.
' direction, the cassette insertion port 9 is opened, and the lock pin 53 is moved from the lock step 54 to the arrow i'.
direction, and the slider 48 is unlocked. Then, the slider 48 is moved back in the direction of arrow a' by the spring 49, and the ejecting means 27a on this slider 48 is
, 27b, the large and small cassettes 1.2 in the cassette storage section 20 are ejected from the cassette insertion opening 9 toward the operator side 8 in the direction of arrow a'.

By the way, as shown in FIGS. 1A to 2, the guide shaft 110a that guides the rack member 109 and the rack member 11
The guide shaft 114a that guides the double pinion 11
7. Placed near both sides of the support shaft 116 of 118,
Both rack members 109 and 112 relative to the center of the support shaft 116
The distance A between the ranks 109a and 112a is ensured with high precision by both guide shafts 110a and 114a.

Moreover, as shown in FIG. 2, the head 114a' of the guide shaft 114a allows the rack 113 of the rack member 113 to
The distance dimension B of the rack 113 of the rack member 113 with respect to the center of the support shaft 116 is guided by guiding the guided surface 113b that is parallel to the guide shaft 114a and integrally formed on the pinion 118 side of the guide shaft 114a. axis 114
A high precision is ensured by the head 114a' of a.

Therefore, the double pinion 117.118 and the racks 109a, 112a of the rack members 109.112.113,
113a, the dimensional accuracy and backlash amount accuracy between the rack members 109, 112.
113 without any wobbling etc., move the arrow a.
, a' directions, and the pushing operation of the large and small cassettes 1.2 in the direction of the arrow a by the sending means 28 and the pushing operation of the slider 48 in the direction of the arrow a can be carried out smoothly.

Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications can be made based on the technical idea of the present invention.

H Effects of the Invention Since the present invention is configured as described above, it produces the following effects.

The second and third
The rack members are moved in the same direction with two different strokes, and either the second or third rack member pushes out the cassette. Since only one is required, the number of parts and assembly steps can be reduced, resulting in a simple structure and low cost.

The double binion is attached to the cassette storage shelf via a support shaft and rotated in a fixed position, and a guide shaft that commonly guides the second and third rack members is attached to the cassette storage shelf near the support shaft. Since it is attached, it is possible to improve the dimensional accuracy and backlash amount accuracy between the double pinion and the second and third rack members, so that the second and third rack members can be prevented from wobbling etc. The cassette can be moved smoothly without causing any bumps, and the cassette can be pushed out smoothly.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and the drawings show an embodiment of the present invention.
The figure and FIG. 1B are plan views illustrating the cassette extrusion device;
Figure 2 is a sectional view taken along the ■-■ arrow in Figure 1A, and Figures 3A~
Fig. 3E is a plan view of a storage shelf for large and small cassettes, illustrating the eject mechanism and cassette extrusion device, and Figs. 4A to 4
Figure C is a plan view explaining the switching lever, Figures 5A and 5
Figure B is a cross-sectional view for explaining the small cassette guide, Figures 6A and 6B are plan views for explaining the reciprocating movement of the sending means and shutter means, and Figures 7A and 7B are sectional views for explaining the small cassette guide.
- A cross-sectional view taken in the direction of the arrow A and the direction of the arrow ■B-■B in Figure 6B,
FIG. 8 is a plan view of the entire cassette autochanger. In addition, in the symbols used in the drawings, 1-----------11-1-----Large cassette 2-------1------------1 Small cassette 3----------1----- Large and small cassette storage shelf 20...--m------1-----
-・Cassette storage section 28------------
----Sending means 48------1----Slider 109...--11---First rack member 109a, 112a, 113a ・-Rack 110a, 110b - Guide shaft 112 - - - - - - - - - Second rack member 1
13-------------Third rack member 113b---------------------1 Guided surface 1
14a, 114b--Guide shaft 14a Head 16 of guide shaft 114a Support shaft 17 18 Binion 22 - Operating means. Agent Masaru Tsuchiya

Claims (1)

[Scope of Claims] A first rack member that is movably attached to a cassette storage shelf and is operated to move from a backward movement position to a forward movement position by an operating means inserted from the outside, and a first rack member that is moved to the cassette storage shelf. a second rack member that is movably attached and moved from a backward movement position opposite to the first rack member to a forward movement position; a third rack member that is moved from a backward movement position opposite to the first rack member to a forward movement position; a third rack member that is attached to the cassette storage shelf so as to coaxially rotate together; A first pinion meshed with both the second rack member and a first pinion having a diameter different from that of the first pinion and fixed to the upper cassette storage shelf in the vicinity of the spindles of the first and second pinions. and a guide shaft that is disposed in a guide shaft that commonly guides the second and third rack members, and by moving the first rack member with the operating means, the first and second pinions are moved. The second and third rack members are moved with different strokes through the A cassette extrusion device for a cassette storage shelf, characterized in that it is configured to operate a mechanism.