JPS6346506B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a device configured to be able to drive a tape reel built into a tape cassette in a state where a plurality of tape cassettes of different sizes are selectively mounted at respective predetermined mounting positions. This is a tape cassette guiding and mounting device applied to a tape cassette, which allows tape cassettes of different sizes to be inserted and stored, and to be easily and reliably guided and mounted from a retrieval position to a predetermined mounting position. With the goal.

In a conventional cassette tape recorder, such as a cassette video tape recorder (hereinafter abbreviated as VTR), a tape reel built into the tape cassette is driven to perform the following operations for recording or playback. That is, the tape cassette is once inserted into a casing that has an opening with a slightly larger size and shape in at least one direction in order to roughly control the position of the tape cassette in the tape cassette guiding and mounting device at a position where the tape cassette can be taken out. The tape cassette is then stored by moving the entire casing to near the predetermined mounting position of the tape cassette, and finally the tape cassette is inserted into the tape cassette by engaging with a device fixing pin etc. provided on the main device where the driving means is arranged. It performs highly accurate positioning. On the other hand, in VTRs and the like, two contradictory demands are desired: long-time recording and reduction in size and weight by using smaller tape cassettes. One way to satisfy these two points is to at least make it possible to apply small tape cassettes, which are used in devices that are designed to be smaller and lighter, in addition to devices that normally use large tape cassettes for long-term recording. Conceivable. One of the problems that arises in this case is that the housing of the tape cassette guide and loading device into which the tape cassette is inserted and stored is formed in a size that corresponds to a large tape cassette. There is no general positional regulation within the housing, making it extremely difficult to reliably move the tape cassette to the vicinity of the final mounting position.Also, when taking out a small tape cassette, the difference in size from a large tape cassette has to be compensated for. It becomes necessary to insert one's hand and take it out, resulting in extremely poor operability.

The present invention has been made to solve these disadvantages, and the present invention will be described in detail below based on drawings showing embodiments. FIG. 1 shows the dimensional relationship of a tape cassette applied to the tape cassette guide and mounting device of the present invention shown in FIG. Small tape cassette 1 and large tape cassette 2
are used for short-term recording and long-term recording, and the amount of tape that can be wound is different, so the size of the tape cassette, that is, at least the width a, A and the depth b, B, is different. This is what we do. The thickness may be the same or different.

Next, in FIG. 2, the tape cassette guide and mounting device has a casing 4 having an opening 3 having at least a slightly larger opening width (A+α) than the width A of the large tape cassette 2. . Housing part 4
The outside is composed of a decorative top plate 5, a lid 6 that is opened when the small tape cassette 1 is inserted, a bottom plate 7, and a side plate 8. One side of the side plate 8 is engaged with a rotating shaft 9, and a bearing fitting 10 of the rotating shaft 9 is fixed to a substrate (not shown) of a main unit (not shown).
A biasing spring 1 is installed between the bearing fitting 10 and the side plate 8.
1 is stretched and urges the housing section 4 upward.
After the housing portion 4 is rotated by the biasing spring 11 to a position where the large and small tape cassettes 2, 1 can be taken out, positioning is performed by the contact between the bent portion 10a of the bearing fitting 10 and the side plate 8. In order to guide and install the tape cassettes 1 and 2 into the main unit (not shown), in the case of the large tape cassette 2, the tape cassettes 1 and 2 are opened as shown in solid lines in FIG. Insert it from section 3, and in the case of small tape cassette 1, close the lid 6 once.
After pushing up and opening the casing 4 and inserting it into the casing 4 through the opening 3 and storing it, the lid 6 is closed and the entire casing 4 is moved to a predetermined position (see FIG. 2) relative to the main unit (not shown).
Push the housing part 4 down to the state indicated by the dotted chain line), and lock the housing part 4 by locking means (not shown) attached to the main unit.
is retained. During this time, the large or small tape cassette 2 or 1 is transferred to the vicinity of the predetermined mounting position by the movement of the casing 4, and is finally attached to a positioning pin or the like (not shown) provided on the main unit where the driving means is arranged. ), the tape cassette is positioned with high precision.

Next, the inside of the housing section 4 will be described in detail based on FIGS. 3 and 4. 3 and 4 are the decorative top plate 5 and lid 6 in FIG. 1 for ease of understanding.
FIG. Figure 3 shows the insertion/storage position guide member 12 for the small tape cassette 1.
Fig. 4 shows the state when the large and small tape cassettes 2 and 1 are not inserted, and the state when the small tape cassette 1 has been inserted and stored.
This shows the state when it is inserted and stored.
In FIGS. 3 and 4, the left and right insertion/storage position guide members 12 are rotatably supported at one end by pins 13 installed on the left and right sides of the side plate 8, respectively, and are supported by torsion coil springs 14 on the bottom plate 7. is biased in the direction. Positioning in the urging direction other than when inserting the large tape cassette is performed by the contact between the one end contact portion 12a and the bent portion 8a of the side plate 8. The distance between the other end guide surfaces 12b of the left and right insertion/storage position guide members 12 is set to a value slightly larger than the width a of the small tape cassette 1 (a+β).
When inserting and storing small tape cassette 1, the third
As shown in the figure, the left and right insertion storage position guide members 12
The other end guide surface 12b is in a state of being lowered to a position where the small tape cassette 1 is inserted in the direction of the bottom plate 7,
The insertion direction and position are guided by the other end guide surface 12b, and the insertion is possible. Note that positioning with respect to the housing portion 4 in the insertion direction after insertion is performed by the bent portion 7a of the bottom plate 7. When the large tape cassette 2 is inserted, its insertion direction and position are guided by left and right side plates 8 having a width (A+α) slightly larger than the width A of the large tape cassette 2, as shown in FIG. At that time, the insertion/storage position guide member 12 of the small tape cassette 1 is inserted into the large tape cassette 2.
When inserted, it rotates in the direction of arrow 15, and after insertion and storage, a biasing force is applied to the large tape cassette 2 by the torsion coil spring 14 on the bottom plate 7, and in the final position of positioning to the main unit, it is attached to the positioning pin etc. This act as a force to help position the large tape cassette 2 more reliably.

Next, another embodiment according to the present invention will be described using FIGS. 5 and 6. In Figures 5 and 6, 1
6 is an insertion storage position guide member, and this guide member 16
is rotatably supported at one end by a pin 18 set up on the outer end of each side plate 17, and the other end is moved toward the inside of the casing 4 by a torsion coil spring 19 provided on this pivot support. Large and small tape cassettes 2,
It is biased in the direction perpendicular to both the insertion direction and the thickness direction of 1 (in the direction of arrow 20), and protrudes inward from the side plate 17f. The positioning of the large tape cassette 2 in the urging direction 20 at times other than when it is inserted is performed by contacting the side plate 17 with the contact portion 17a. The distance between the other end guide surfaces 16a of the left and right insertion/storage position guide members 16 is set to a value slightly larger than the width a of the small tape cassette 1 (a+β). When inserting and storing the small tape cassette 1, it can be inserted while being guided in its insertion direction and position by the other end guide surface 16a as shown in FIG. When the large tape cassette 2 is inserted, as shown in FIG. The tape cassette 1 insertion/accommodation position guide member 16 rotates in the direction of arrow 21 to allow the large tape cassette 2 to be inserted.

Next, we will discuss the structure of the lid 6 in FIG. 1 that facilitates the removal or insertion of the small tape cassette 1 into the housing 4, and the biasing means in the thickness direction that ensures the final positioning of the small tape cassette 1. This will be explained using FIGS. 7 to 11. In this drawing, detailed internal views of the casing 4 shown in FIGS. 3 to 6, the bearing fitting 10, etc. shown in FIG. 3 are omitted for ease of understanding. 7 to 11, the lid 6 consists of a lid substrate 6a and a decorative plate 6b integrated therewith, and the lid substrate 6a has two bent portions 6c having holes through which the lid 6 is formed. Side plate 8
It is rotatably supported by a shaft 22 held at [or 17] in the directions of arrows 23a and 23b. When the lid 6 is closed, as shown in FIG. 9, a leaf spring 24 with one end bent is fixed to the bent portions 8d and 17d provided in a part of the side plate bent portion 8a (or 17b) with screws. Then, the bending portion 6d of the lid substrate 6a is urged, and the positioning portion 8
The closed position is maintained by c and 17c. When the lid 6 is opened, the lid 6 is rotated in the direction of the arrow 23a against the leaf spring 24 as shown in FIG.
The position of the lid 6 is maintained at a position where the bent portion 24a of the leaf spring 24 and the bent portion 6d of the lid base plate 6a come into surface contact. Further, as shown in detail in FIG. 11, bent pieces 8e and 17e are provided in the folded portions 8a and 17b of the side plates 8 and 17 at the positions where the small tape cassette 1 is inserted and stored, and the small tape cassette is inserted into the folded pieces 8e and 17e. A leaf spring 25 is attached to apply a biasing force in the thickness direction of 1.

With the above configuration, when inserting or removing the small tape cassette 1, which has a smaller width (a shown in FIG. 1a) than the casing 4, it is pushed up to the ejectable position as shown in FIG. In this state, the lid 6 is opened, and the small tape cassette 1 can be easily inserted and stored at a predetermined position in the housing 4 while holding the end face in the width direction.

The tape cassette guide and mounting device of the present invention can be implemented as described above, and can insert and store tape cassettes of different sizes, and can be easily operated from the tape cassette removal position to the predetermined mounting position. It is possible to provide a tape cassette guiding and mounting device that guides and mounts tape cassettes easily and reliably. In particular, in the case of a small tape cassette, insertion can be carried out reliably and easily by opening the lid, checking the insertion position using the storage guide means, and holding the end portion by the storage position guide means. It can also be easily taken out by opening the lid. Furthermore, the tape cassette guide and mounting device can be realized with an extremely simple configuration.

[Brief explanation of drawings]

Figures 1A and 4B are explanatory diagrams showing the dimensional relationship of tape cassettes of different sizes, Figure 2 is an external perspective view showing the first embodiment of the present invention, and Figures 3 and 4.
The figure is a partially cutaway perspective view showing details of the casing in the first embodiment, FIGS. 5 and 6 are partially cutaway perspective views showing other embodiments of the casing, and FIG. 7 is a small tape Partially cutaway plan view showing details of the attachment part of the lid that is opened and closed when inserting, storing or removing a cassette, No. 8
9 and 10 are explanatory views of the same operation, and FIG. 11 is a perspective view of the main part of FIG. 7. 1... Small tape cassette, 2... Large tape cassette, 3... Opening, 4... Housing, 6... Lid,
7...Bottom plate, 8...Side plate, 9...Rotation shaft, 11...
...Biasing spring, 12, 16...Insertion storage position guide member, 17...Side plate.

Claims (1)

[Claims] 1 A device that guides and moves inserted and stored first or second tape cassettes of different sizes from a retrieval position to a respective predetermined mounting position, which when the second tape set is inserted and stored. a storage position guide means for guiding the insertion and storage position of the second tape cassette, and releasing the guidance of the insertion and storage position of the second tape cassette when the first tape cassette is inserted and stored; A tape cassette guiding and mounting device characterized by having a lid that can be opened in accordance with the size of the second cassette and its insertion/storage position at the removable position.