JPS58212676A - Cassette adaptor - Google Patents

Abstract

PURPOSE:To prevent malfunction by putting a small-sized tape cassette in a case body having the same size as a standard size tape cassette and opening a guard panel of the small-sized tape cassette by a positioning piece fitted to the case body. CONSTITUTION:A space to take the small-sized tape cassette 1 is prepared in a part of the case body 6 having the same size as the standard size tape cassette. The small-sized tape cassette 1 build-in rotatably two reel to take up a magnetic tape and a guard panel 5 to pull out the tape. The space 7 is provided with arms 8, 20 and guide rolls 9, 11 to pull out the tape from the cassette 1 and abut it to an unshown magnetic head. The reels are rotated by a shaft inserted from a hole 6a and a gaer 4a for the reels. When the small-sized casette 1 is inserted, the positioning piece 12 fitted to the body is abutted to the guard panel 5 to open the panel 5. Consequently, malfucntion is prevented and the small-sized cassette can be set to a large-sized deck.

Description

Detailed Description of the Invention The present invention provides a tape cassette (hereinafter referred to as a second tape cassette) which is a conventional tape cassette (hereinafter referred to as a first tape cassette) with a smaller external shape by narrowing the distance between the reels. The present invention relates to a cassette adapter that allows the first tape cassette to be used in a device used in the first tape cassette.

Compared to compact tape cassettes for audio, tape cassettes used in video tape recorders, etc., have a much larger external shape due to standards such as tape width and distance between reels, and can also be used in vertical equipment. However, since the tape cassette is large, there is a limit to its miniaturization, which is a major problem.

Furthermore, with the current technology, it is difficult to manufacture small tape cassettes with narrow tape widths due to image quality problems.

For this reason, as a means of downsizing tape cassettes and equipment, the tape width is the same as that of the conventional first tape cassette, and the distance between the reels is approximately the same as that of the first tape cassette. In addition to making it a dedication,
Compact second tape cassettes have come to be considered, with the amount of tape being about 1/4 to 1/6 of the full-sized first tape cassette.

Such a small second tape cassette not only provides the same image quality as the current first tape cassette, but also allows the tape cassette itself to be made smaller.
Although it is possible to downsize equipment using tape cassettes, the amount of tape is naturally reduced, so the recording time is shorter than that of the current first tape cassette. When considering recording time and miniaturization, it is desirable to change the tape cassette used depending on the purpose, etc., and it is desirable to use a small second tape cassette that is compatible with the first tape cassette. In other words, the first tape cassette is required to be usable in equipment that uses the first tape cassette, and a cassette adapter is required to satisfy this requirement.

SUMMARY OF THE INVENTION An object of the present invention is to provide such a cassette adapter so that the second tape cassette can be accurately stored in the cassette storage section.

Hereinafter, an embodiment of the cassette adapter of the present invention will be explained using the drawings of FIG. 1 and FIG. To rotatably support and store magnetic tape winding wheels 3 and 4 in the nof case 2, and to form a predetermined running path so that the magnetic tape is exposed to the outside on the front side. It is made up of. Furthermore, a guard panel 6 that can be opened and closed is provided on the front surface of the half case 2. In this second tape cassette 1, one reel 3 can be operated from the bottom side of the half case 2 through a window (not shown) provided at the bottom of the half case 2, and the reel 3 can be operated from the bottom side of the half case 2 through a window (not shown) provided at the bottom of the half case 2. The other reel 4 is rotatably supported by a reel shaft (not shown) implanted in the nof case 2, and has a gear part on its outer periphery. 4a
is formed, and is rotated by a gear on the driving source side that meshes with the gear portion 4a through a window on the side surface of the half case 2.

6 is the main body case of the adapter, and this main case 6
has the same external dimensions as the first tape cassette, and the main case 6 is provided with a cassette storage part in which the second tape cassette 1 is stored. In this main body case 6, at a position corresponding to the reel stand of the video tape recorder, a +7- gear that can be attached to the tip of one of the reel stands is rotatably supported and disposed, and the other reel stand is rotatably supported. A window 6a is provided at the tip of the tape cassette 1 so that the reel 3 of the second tape cassette 1 can be attached thereto. An idler gear meshes with the reel gear,
The gear portion 4a of the reel 4 of the second tape cassette 1 meshes with this idler gear, and the rotation of the reel gear rotates the reel 4 of the second tape cassette 1, causing the magnetic tape 3 to travel.

A pick-up side pull-out arm 8 in the shape of a fishing needle is arranged in the main body case 6 so as to rotate around an axis.
A guide roller 9 for hooking the magnetic tape of the second tape cassette 1 and pulling it out to a predetermined position is attached to one end of the pickup arm 8.

Further, a supply side pullout arm 10 is disposed at a position facing the tick-up side pullout arm 8 of the main body case 6 so as to rotate around an axis, and one end of this supply side pullout arm 10 is also provided as described above. Tick-up side drawer arm 8
Similarly, a guide roller 11 is attached for hooking the magnetic tape of the second tape cassette 1 and pulling it out to a predetermined tape guide position. The take-up side pull-out arm 8 and the supply-side pull-out arm 1o operate in conjunction with each other, thereby making it possible to pull out the magnetic tape of the second tape cassette 1 to the tape guide position of the first tape cassette.

12 is an opening/closing lid rotatably supported at one end at the opening of the cassette storage section 7 of the main body case 6, and 13 is a locking device for holding the opening/closing lid 12 in a closed state. .

Here, a protrusion 7a is provided on the side wall of the cassette storage section 7, and is inserted into a groove 2a provided on the side surface of the nof case 2 of the second tape cassette 1.
The second tape cassette 1 is positioned and stored in the cassette storage section 7 by the insertion of the tape cassette a and the protrusion 7a.

Further, an L-shaped positioning piece 14 is provided in the opening of the cassette storage section 7 at a portion where the guard panel 5 of the second tape cassette 1 is located.
4 can prevent the guard panel 5 from closing during use. This positioning piece 14 has a length Ll from the groove 2a of the second tape cassette 1 to the guard panel 5.
, from the groove 2a of the second tape cassette 1 to the half case 2
The configuration is such that IJ2 < LM < L+. That is, by providing this positioning piece 14, when trying to store the second tape cassette 1 in the cassette storage part 7 with the guard panel 5 closed, the lower end of the guard panel 6 will hit the positioning piece 14. Therefore, it is possible to prevent the second tape cassette 1 from being stored in the cassette storage section 7 with the guard panel 6 closed.

In addition, in FIG. 1, 15 is a guard panel provided on the front of the main body case 6 so as to be openable and closable.

That is, in the present invention, a positioning piece 14 is provided in the cassette storage portion 7, with which the lower end of the guard panel 6 of the second tape cassette 1 is still in contact when the guard panel 6 is closed. If you try to store the tape cassette 1 in the cassette storage section 7 with the guard panel 5 of the tape cassette 1 not open, that is, the magnetic tape cannot be pulled out, the guard spring of the second tape cassette 1 Eliminate the need to store items in a state where they cannot be pulled out.

Moreover, when the second tape cassette 1 is stored with the guard nozzle 6 open, the positioning piece 14 of the guard panel 6 is regulated by the positioning piece 14. There is no closing.

As described above, according to the cassette adapter of the present invention, it is possible to prevent the second tape cassette from being stored in the cassette storage section in a state where the tape cannot be pulled out, and moreover, the guard/ζ-flank is closed during use. It is also possible to prevent

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a cassette adapter according to an embodiment of the present invention, and FIG. 2 is an explanatory view for explaining the main structure of the cassette adapter. 1...Second tape cassette, 2...No 1 case, 3.4...Reel, 5...
・Guardo (Flannel, 6...Body case, 7...
...Cassette storage section, 8...0. Homare lift-up side pull-out arm, 9.11...Guide roller, 10
...Supply side drawer arm, 14...Positioning piece.

Claims (1)

[Claims] A main body having the same dimensions as the first tape cassette and having a cassette storage part for storing a second tape cassette, which has a shorter distance between the reels than the first tape cassette and has a guard panel on the front that can be opened and closed up and down. a case, and a drawer operation for pulling out a magnetic tape from the second tape cassette to a tape guide position of the first tape cassette, and an accommodation operation for storing the magnetic tape in the second tape cassette. a tape drawer storage means for carrying out;
reel driving means for driving a reel of a second tape cassette disposed in the main body case and housed in the parenthesized main body case;
A cassette adapter provided with a positioning piece that comes into contact with the lower end of the guard panel of the tape cassette when the guard panel is closed.