JPH0823958B2 - Storage cabinet for both large and small cassettes - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in the following order.

A Industrial Field B Outline of the Invention C Conventional Technology D Problems to be Solved by the Invention E Means for Solving the Problems F Action G Example G ₁ Description of the Cassette Autoentier (Fig. 5 and Fig. 5) Fig. 6) Description of G ₂ large and small cassette combined storage shelves (Figs. 1 to 4D) H Effect of the invention A Industrial field of application The present invention is, for example, a continuous video playback or recording for a long time in a television station. The present invention relates to a storage cabinet for both large and small cassettes, which is optimal for being applied to a cassette auto-chainer that performs.

B Outline of the Invention The present invention relates to a storage cabinet for large and small cassettes, which is applied to a cassette auto chain, etc., in which the small cassette guide is moved and urged into the cassette storage unit, and the large cassette is inserted into the cassette storage unit. When the outer shape of the large cassette is detected and the cassette guide is allowed to escape to the outside of the cassette storage portion, the movement control of the small cassette guide can be automatically performed.

C Prior Art The applicant of the present invention has proposed as a prior application example of a cassette storage shelf of a cassette auto-chassis using a video cassette.
For example, the application described in Japanese Utility Model Laid-Open No. 60-90136 has been filed first.

In this prior application, a cassette of one size is inserted and stored in the cassette storage portion, and the cassette is guided and inserted by a pair of cassette guides fixed on both sides of the opening of the cassette storage portion. It is the one.

D. Problems to be Solved by the Invention Therefore, in this prior application, only one type of cassette is stored exclusively, and large cassettes and small cassettes of different sizes can be selectively stored. Moreover, it has been impossible to accurately position the small cassette at a predetermined position in the cassette storage portion.

According to the present invention, a large cassette and a small cassette can be selectively stored in the cassette storage unit, and a small cassette guide for accurately positioning the small cassette at a predetermined position in the cassette storage unit is provided. The present invention provides a storage shelf that also serves as a cassette, and in particular, when a large cassette is inserted into the cassette storage part, the small cassette guide is placed outside the cassette storage part so as not to interfere with the insertion of the large cassette. The purpose of the present invention is to provide a storage cabinet that can be automatically released and that is also used for large and small cassettes.

E Means for Solving the Problems In order to achieve the above object, the storage rack for both large and small cassettes according to the present invention is a storage rack for both large and small cassettes in which the large cassette and the small cassette are selectively stored in the cassette storage portion. In the above, the small cassette guide and the large cassette detecting means, which are configured to be movable between the inside and the outside of the cassette storing part and are urged to move inside the cassette storing part, are provided in the cassette storing part. When the insert is inserted, the outer shape of the large cassette is detected by the large cassette detecting means to allow the small cassette guide to escape to the outside of the cassette storage portion.

Further, a guide groove having one end opened and the other end closed is provided at a position facing the end of the small cassette guide on the bottom surface of the large cassette, and when the large cassette is correctly inserted into the cassette storage part. , The guide groove is guided at the end of the small cassette guide at the start of the insertion, and when the large cassette is erroneously inserted into the cassette storing portion, the large cassette is inserted at the end of the small cassette guide. Can also be configured to prevent the insertion of the.

F Action According to the large / small cassette storage rack configured as described above, when the large cassette is inserted into the cassette storage unit, the small cassette guide can be automatically released to the outside of the cassette storage unit.

Further, the small cassette guide can also serve as an erroneous insertion preventing means for the large cassette.

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

G ₁ First, the cassette cassette will be described with reference to FIGS. 5 and 6.

First, this cassette auto-changer is capable of selectively using two types of cassettes, a large cassette 1 and a small cassette 2 having different sizes. The large and small cassette dual-purpose storage shelves 3 that can be used for both the large cassette 1 and the small cassette 2 can be used for exclusive storage of the shelf blocks 4 and the small cassettes 2 provided in rows and columns in a large number of upper and lower stages. There are provided a plurality of shelf blocks 6 in which small cassette dedicated storage shelves 5 are provided in a number of rows in upper and lower rows, a shelf block 9 provided with a shelf 7 exclusively for inserting small cassettes 2 and a shelf 8 exclusively for discharge. I have. The plurality of shelf blocks 4, 6 and 9 are arranged in two rows along the front and rear sides of the movement path 11 of the cassette transfer machine 10 which is moved vertically in FIG. 5 and horizontally in FIG. Are arranged. A recording / reproducing device 13 is arranged in a plurality of upper and lower stages on one side of the back side shelf block row 12b opposite to the shelf block row 12a on the operator side (front side) 12. The plurality of recording / reproducing devices 13 are front loading VTRs common to the large and small cassettes for selectively recording or reproducing the large cassette 1 and the small cassette 2. The cassette insertion ports 13a of the plurality of recording / reproducing apparatuses 13 are directed to the operator side 12, and a plurality of cassette insertion / ejection adapters 14 are provided on the front side (operator side) of the plurality of cassette insertion ports 13a.
Is provided. The cassette transfer device 10 is provided with one cassette accommodating portion 15 for selectively and commonly accommodating the large cassette 1 and the small cassette 2. A plurality of open / close doors 16 are provided on the front surface of the shelf block row 12a on the operator side 12.

And according to this cassette auto changer,
First, the large cassette 1 and the small cassette 2 are stored in advance in a large number of large and small cassette combined storage shelves 3 and a small cassette dedicated storage shelves 5. In this case, the large and small cassette storage shelf 3
As for the operator, the operator inserts and ejects the large and small cassettes 1 and 2 from the operator side 12 in the directions of arrows a and a '. Regarding the small cassette dedicated storage shelf 5, the operator sequentially transfers the small cassettes 2 inserted in the insertion dedicated shelf 7 by the cassette transfer machine 10 and sequentially inserts them in the direction of the arrow b from the moving path 11 side, and vice versa. The small cassettes 2 sequentially discharged from the small cassette dedicated storage rack 5 in the direction of the arrow b'by the cassette transfer machine 10 are sequentially discharged from the dedicated discharge rack 8 to the operator side 12.

Next, the cassette transfer machine 10 is controlled to move vertically and horizontally along the movement path 11 to selectively receive the large cassette 1 or the small cassette 2 in the designated shelf address from the direction of the arrow b '. , The cassette is stored in the cassette storage portion 15. After the accommodated large cassette 1 or small cassette 2 is transferred to the recording / reproducing device 13 designated by the cassette transfer device 10, the large cassette 1 or small cassette 2 is transferred from the cassette insertion slot 13a using the adapter 14. A large cassette 1 or a small cassette 2 is loaded or loaded into the designated recording / reproducing apparatus 13 in the direction of arrow c. On the other hand, the large cassette 1 or the small cassette 2 which has been recorded or reproduced by the recording / reproducing apparatus 13 is unloaded in the direction of arrow c 'by using the adapter 14 and received by the cassette transfer device 10, and the original operation is performed in the reverse operation. Return to the shelf address.

Then, by continuously repeating the above operation, continuous video reproduction and recording over a long time can be performed.

Moreover, at this time, a small cassette 2 having a small size and a short recording time is used to broadcast a short time such as a commercial, and a large cassette 1 having a large size and a long recording time is used for news or various programs. It is possible to adopt a method of distinguishing the length of the broadcasting time, etc. by the size of the large and small cassettes 1 and 2, such as broadcasting for a long time.

G ₂ Next, referring to FIGS. 1 to 4D, the details of the large and small cassette / shelf 3 will be described.

First, as shown in FIG. 1, FIG. 2A, and FIG. 3A, a shelf plate 19 is horizontally installed above a shelf chassis 18 made of sheet metal.
A pair of left and right large cassette guide plates 20 are vertically provided on both left and right sides of the shelf plate 19, and the shelf chassis 18 of the upper and small cassette / combined storage shelves 3 is arranged close to the upper portions of the large cassette guide plates 20. Shelf board 19 and both large cassette guide boards 20
And a cassette storage portion (space) 21 is formed between the upper shelf chassis 18 and. And this cassette storage
Both front and rear ends of 21 are opened by openings 21a and 21b.

A pair of left and right small cassette guides 22 are provided on the bottom of the cassette storage portion 21 in a parallel and symmetrical manner. Both small cassette guides 22 are rail-shaped, and have guide surfaces 22a parallel to each other, and inclined surfaces 22b and 22c formed at both front and rear ends thereof. Both of these small cassette guides 22 are integrally molded inside the pair of left and right rocking plates 23 with a synthetic resin, and the outer ends of both rocking plates 23 are mounted on a rack chassis 24. It is mounted by a horizontal fulcrum shaft 25 so as to be swingable in the up and down directions of arrows d and d '.

Also, a pair of front and rear on both left and right sides of the cassette storage section 21,
Detection rollers 26a, 2 which are four large cassette detection means in total
6b is provided. These detection rollers 26a and 26b are
Support shafts 27a, 2 perpendicular to the upper left and right sides of the shelf chassis 18
It is rotatably attached to one end of a total of four L-shaped rotary arms 28a and 28b, each pair of front and rear, which are rotatably attached in the directions of arrows e and e'via 7b. The front and rear ends of the pair of left and right cam levers 29 are the pair of front and rear rotary arms.
Pins 30a and 30b are rotatably connected between the pins 28a and 28b. The pair of front and rear rotary arms 28a, 28b and the pair of left and right cam levers 29 constitute a parallel four-link mechanism.

A pair of left and right cam levers 29 are integrally provided with a pair of cam drive portions 31 on the upper front and rear ends, and a pair of left and right swing plates 23 are integrally provided with a pair of cam followers 32 on the lower surfaces of the front and rear ends. There is. It should be noted that the cam drive portion 31 has a rectangular shape, the upper end surface 31a thereof is formed in a horizontal plane, and the cam driven portion 32 has a substantially mountain shape, and the front and rear sides of the horizontal lower end surface 32a are tapered surfaces 32b. Has been formed. The pair of left and right cam levers 29 are urged to move in the direction of arrow f by the pair of left and right return springs 33 attached between the pair of left and right shelves 18 so that the cam drive portion 31 causes the cam follower portion 32 to move. Is pushed up, the pair of left and right rocking plates 23 is pushed up in the direction of arrow d, and the pair of left and right small cassette guides 22 are moved from below into the cassette storage portion 21 as shown in FIG. 3A. Has been done. Further, the pair of left and right return springs 33 urges the four rotary arms 28a and 28b to rotate in the direction of arrow e, and the four detection rollers 26a and 26b move to the inside of the cassette storage portion 21 from both left and right sides. Has been done.

Next, an operation of selectively inserting the large and small cassettes 1 and 2 into the cassette storage portion 21 will be described.

First, in FIGS. 2A and 3A, the small cassette 2 is inserted into the cassette storage portion 21 from the opening 21a on the operator side 12 by an arrow g.
It shows the case of inserting in the direction.

At this time, as shown in FIG. 3A, since both small cassette guides 22 are located inside the cassette storage portion 21, the left and right side surfaces 2a of the small cassette 2 are connected to the inclined surfaces 22b of both small cassette guides 22 and By guiding with the guide surface 22a, the cassette can be accurately inserted and positioned at a predetermined position in the cassette storage portion 21. When the small cassette 2 is inserted from the cassette transfer machine 10 through the opening 21b into the cassette storage portion 21 in the direction of the arrow g ', both cassette guides 22
It is guided by the inclined surface 22c and the guide surface 22a.

Next, the operation of inserting the large cassette 1 into the cassette storage portion 21 through the opening 21a on the operator side 12 in the direction of arrow g will be described.

As shown in FIGS. 2B and 3B, while guiding the large cassette 1 between the two large cassette guide plates 20, the cassette storage section
When it is inserted into the opening 21a in the direction of arrow g for a certain distance l ₁ into the opening 21, the left and right side surfaces 1a of the large cassette 1 are brought into contact with the pair of left and right detection rollers 26a on the opening 21a side. And the second C
As shown in the figure, both detection rollers 26a are moved in the direction of arrow e'from the inside of the cassette housing portion 21 against the both return springs 33. (This means that the outer shape of the large cassette 1 is detected.) At this time, both rotary arms 28a are rotated in the direction of arrow e'against both return springs 33, and both cam levers 29 are moved in the direction of arrow f '. It Then, the four cam drive parts 31 escape from the bottom of the four cam follower parts 32 in the direction of the arrow f ′, and the third C
As shown in the figure, the two rocking plates 23 rotate in the direction of the arrow d'by their own weight, and the two cassette guides 22 automatically escape from the inside of the cassette accommodating portion 21 to the outside and below.

Therefore, the small cassette guides 22 do not become an obstacle for the insertion of the large cassette 1, and the large cassette 1 is guided between the large cassette guide plates 20 and is accurately inserted into the cassette storage portion 21 at a predetermined position. Can be positioned accurately.

As shown in FIG. 2D, when the large cassette 1 is inserted from the cassette transfer machine 10 through the opening 21b into the cassette storage portion 21 in the direction of the arrow g ', the large cassette 1 is slightly inserted into the opening 21b. At this time, the outer shape of the large cassette 1 is detected by the pair of left and right detection rollers 26b on the side of the opening 21b, and as described above, both small cassette guides 22 are automatically released in the direction of the arrow d'as shown in FIG. 3C. Be done.

Next, the operation for preventing the erroneous insertion of the large cassette 1 by the small cassette guides 22 will be described.

First, as shown in FIGS. 3B and 4A, the openings 21a of the two small cassette guides 22 are formed on the left and right sides of the bottom surface 1b of the large cassette 1.
A pair of left and right guide grooves 35 at a position facing the end portion 22d on the side.
Are provided in parallel. These two guide grooves 35 have a width slightly larger than that of the two small cassette guides 22, and the front lid 1c side of the large cassette 1 is formed as an open end 35a and the opposite side thereof is formed as a closed end 35b. And both guide grooves 3
The length l _{2 of} 5 is configured to be slightly longer than the distance l ₁ shown in FIG. 2B.

Next, FIG. 4A shows a case where the large cassette 1 is correctly inserted into the cassette storage portion 21 in the direction of the arrow g at the correct orientation, and at the time of starting the insertion (the distance in FIG. 2B).
l Only ₁ is inserted in the direction of arrow g. ), Both guide grooves 35 are inserted into both small cassette guides 22 from the open end 35a, and both small cassette guides are inserted through both guide grooves 35.
Twenty-two guides the large cassette 1.

Then, as shown in FIG. 4B, when the large cassette 1 is inserted over the distance l ₁ shown in FIG. 2B and the detection roller 26a is pushed by the side surface 1a of the large cassette 1 in the direction of arrow e ', the small cassette is pushed. The guide 22 escapes from the inside of the guide groove 35 in the arrow d'direction as described above.

Next, FIG. 4C shows a case in which the large cassette 1 is inserted upside down in the direction of arrow g by mistake, and at this time, the front face 1d of the front lid 1c of the large cassette 1 has both small cassettes. The guide 22 is brought into contact with the end 22d of the guide 22 to prevent erroneous insertion of the large cassette 1 in the direction of arrow g.

Next, FIG. 4D shows a case where the large cassette 1 is inserted backwards in the wrong direction in the direction of the arrow g. At this time, the rear end face 1e of the large cassette 1 has both small cassette guides.
It is abutted against the end 22d of 22 and the arrow g of the large cassette 1
Prevents incorrect insertion in the direction.

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

For example, in the cassette auto chain shown in the embodiment, the large cassette 1 is stored in the small cassette combined storage rack 3, but a large cassette storage rack for storing only the large cassette 1 may be provided.

Further, the present invention may be a storage shelf that also serves as a large / small cassette other than the cassette auto-chainer. The large and small cassettes shown in the embodiments are not limited to VTRs, but may be disk cartridges of different sizes used in various disk players.

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

In the storage cabinet for both large and small cassettes according to claim 1, when the large cassette is inserted into the cassette storage unit, the small cassette guide can be automatically released to the outside of the cassette storage unit, so that the movement control of the small cassette guide can be performed. Can be done automatically. Therefore, when inserting a large cassette, there is no need for the operator to manually remove the small cassette guide, so that no troublesome work is required, and the operation of selectively inserting the large cassette into the cassette storage section is extremely difficult. Easy and quick to do.

In the storage cabinet for both large and small cassettes according to claim 2, since the small cassette guide also serves as a means for preventing the large cassette from being inserted incorrectly, it is possible to prevent the large cassette from being inserted incorrectly, so that the large cassette can be safely stored in the cassette storage section. Can always be inserted correctly.

[Brief description of drawings]

FIG. 1 shows an embodiment of the present invention, in which FIG. 1 is a perspective view of a storage cabinet for both large and small cassettes, FIGS. 2A to 2D are plan views for explaining the cassette inserting operation, and FIG. In Figure 2A
IIIA-IIIA sectional view taken along the arrow, FIG. 3B shows IIIB-IIIB in FIG. 2B.
Sectional view in the direction of arrow, FIG. 3C is a sectional view in the direction of arrow IIIC-IIIC of FIG. 2C, FIGS. 4A and 4B are perspective views showing correct insertion of the large cassette, FIGS. 4C and 4D. Is a perspective view showing an erroneous insertion of a large cassette, FIG. 5 is a front view of the entire cassette auto-chair, and FIG. 6 is a plan view of a part of the cassette auto-chair. In the reference numerals used in the drawings, 3 ... Large / small cassette storage cabinet 20 ... Large cassette guide plate 21 ... Cassette storage section 22 ... Small cassette guide 22d ... Ends of small cassette guide 26a, 26b ... … Detection roller (large cassette detection means) 33 …… Return spring 35 …… Guide groove.

Claims (2)

[Claims] 1. A storage shelf for both large and small cassettes, wherein a large cassette and a small cassette are selectively stored in the cassette storage portion, the storage shelf being movable between the inside and the outside of the cassette storage portion, and A small cassette guide and a large cassette detecting means which are urged to move into the cassette storing portion are provided, and when the large cassette is inserted into the cassette storing portion, the outer shape of the large cassette is detected by the large cassette detecting means. And the small cassette guide is configured to be released to the outside of the cassette storage portion. 2. A guide groove having one end open and the other end closed is provided at a position facing the end of the small cassette guide on the bottom surface of the large cassette, and the large cassette is correctly inserted into the cassette storage portion. When the insertion is started, the guide groove is guided at the end of the small cassette guide at the start of the insertion, and when the large cassette is erroneously inserted into the cassette storage part, the guide groove is moved at the end of the small cassette guide. The storage rack for both large and small cassettes according to claim 1, wherein the storage cassette is configured to prevent the insertion of the large cassette.