JPH04103373U - tape cassette - Google Patents

Abstract

(57) [Summary] [Purpose] A recording and reproducing device using the tape cassette of the present invention can be downsized. [Structure] A tape guide insertion hole 10 is formed in the bottom wall 2a of the cassette case 2 for locating a tape guide member provided in the recording/reproducing device, such as a ten-pin pin 22, inside the cassette case. , 7 and the head drum 15, the number of tape guide members disposed between them is reduced, and the recording and reproducing apparatus becomes smaller accordingly.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a new tape cassette. This makes it possible to downsize the recording/reproducing device used.

0002

[Conventional technology]

VTR (video tape recorder), DAT (digital audio tape recorder) In cases such as Recording or playback is performed by running the tape on a fixed tape running path.

0003 And some fixed guides, shake out to form a predetermined tape running path A tape guide member such as a guide or tensile pin is required.

0004

[Problem that the idea aims to solve]

Therefore, in conventional recording and reproducing devices, all of these tape guide members are Since the tape is placed outside the tape cassette, this poses an obstacle to downsizing the recording/playback device. It becomes.

[0005]

[Means to solve the problem]

The tape cassette of the present invention solves the above problems. There is a tape guide insert on the bottom wall for inserting the tape guide member into the cassette case. A through hole is formed.

[0006]

[Effect]

Therefore, in the tape cassette of the present invention, at least one part of the tape guide member is is inserted into the cassette case, and the tape guard is positioned outside the cassette case. Since the number of side members is reduced, the recording and reproducing apparatus can be made smaller.

[0007]

【Example】

The details of the tape cassette of the present invention will be explained below according to the illustrated embodiments.

[0008] 1 in the figure is a tape cassette according to the present invention, which is suitable for tape cassettes for VTRs. This is what I used.

[0009] 2 is a cassette case, which has a horizontally long rectangular shape with a small top and bottom thickness. It has a flat box shape.

0010 Inside the cassette case 2, there are two rotatable tape reels 3 and 4 spaced apart on the left and right. A magnetic tape 5 is wound around these tape reels 3 and 4. .

[0011] 6 and 7 are tape entrances and exits provided at both left and right ends of the front of the cassette case 2. Ru.

0012 On the front of the cassette case 2, there is a large A tape drawer recess 8 is formed.

[0013] In addition, a cassette is provided on the inner surface of the tape drawer recess 8 side of the tape entrances 6 and 7. Inner guides 9, 9 are formed.

[0014] Then, from one tape reel 3 (hereinafter referred to as "S side tape reel") The pulled out magnetic tape 5 is pulled out of the cassette case 2 through one tape entrance/exit 6. The tape is ejected, wrapped around the guide 9 in the cassette, and then the other tape is ejected. It enters the cassette case 2 through the entrance 7 and is wrapped around the guide 9 inside the cassette. and then reaches the other tape reel 4 (hereinafter referred to as the "T-side tape reel"). .

[0015] The part between the guides 9 in the cassette is along the front surface of the tape drawer recess 8. It is arranged as follows.

[0016] 10 is a tape guide insertion hole formed in the bottom wall 2a of the cassette case 2; , an arcuate shape between the S-side tape reel 3 and one tape entrance/exit 6 on the bottom wall 2a. It is formed to extend to.

[0017] 11, 11 are insertion holes formed in the bottom wall 2a spaced apart from each other on the left and right; The engagement holes 3a and 4a of the tape reels 3 and 4 are exposed to the outside through the holes 11 and 11. It is.

[0018] 2b is a front cover supported at the front end of the cassette case 2 so as to be freely rotatable in the vertical direction. Yes, and placed along the front of cassette case 2 while tape cassette 1 is not in use. The front side of the magnetic tape 5 placed therein is covered and protected. And the tape When set 1 is attached to the VTR, the magnetic tape is opened by the opening member provided on the VTR. is rotated to a position where the front side of the loop 5 is opened.

[0019] In addition to the above, the tape cassette 1 also has a reel lock mechanism and a front lid lock mechanism. , and others, but their explanations are omitted here as they are not directly related to this invention. do.

[0020] Next, we will outline an example of a VTR that uses the tape cassette 1 described above. explain.

[0021] 12 is the mechanical chassis of the VTR, and 13 and 14 are at the rear of the mechanical chassis 12. These are reel stands spaced apart from each other on the left and right, and have reel engaging shafts 13a and 1, respectively. 4a.

[0022] 15 is a head drum placed in the center of the front part of the mechanical chassis 12; A magnetic head (not shown) is provided on the peripheral surface of the rotating drum 15a.

[0023] 16a, 16b are inclined guides 17a, 17b and folded guides 18a, 18b. It is a loading block with an initial position indicated by a solid line in Figure 4 and a The loading completion position shown in FIG.

[0024] 19 is a capstan, which rotates counterclockwise when viewed from above at a constant speed during recording and playback. Rotate in the circular direction.

[0025] 20 is a pinch roller supported by a rotatable arm (not shown), and is shown in FIG. Between the initial position indicated by the solid line and the loading completion position indicated by the two-dot chain line, there is an additional one-dot chain. It is provided so as to move between the crimping positions shown by lines.

[0026] 21 is a ten leg gear arm rotatably supported by the mechanical chassis 12; It is resiliently biased to rotate counterclockwise when viewed from above.

[0027] The above-mentioned tensile gear arm 21 is locked at the initial position shown in Fig. 4 when not in operation. The lock is released during operation.

[0028] A balance gear pin 22 is erected at the rotating end of the balance gear arm 21. There is.

[0029] Note that the tape guide insertion hole 10 is centered around the rotation axis of the tensile gear arm 21. It is formed in an arc shape.

[0030] However, when the tape cassette 1 is installed on the mechanical chassis 12, it The loading blocks 16a, 16b and the pinch roller 20 in their initial positions are It is located within the tape drawer recess 8 of the tape cassette 1 (see FIG. 5).

[0031] Also, the tension pin 22 of the tension gear arm 21 in the initial position is attached to the tape cassette. is inserted into the cassette case 2 from the right end of the tape guide insertion hole 10 of the (See Figure 5).

[0032] Then, when tape loading starts, loading blocks 16a, 1 6b and the pinch roller 20 move toward the loading completion position, and the magnetic Hook the part of the tape 5 that was located along the front of the tape drawer recess 8. Then, the magnetic tape 5 is pulled out from inside the cassette case 2.

[0033] Also, the lock on the balance gear arm 21 is released, and the balance gear pin 22 is released. elastically presses the magnetic tape 5 outward.

[0034] In the manner described above, the tape running path shown in FIG. 6 is formed.

[0035] When a recording or playback command is issued from the state shown in FIG. 6, the pinch roller 20 is crimped to the capstan 19 with the magnetic tape 5 in between, and the capstan The rotation of the magnetic tape 5 causes the magnetic tape 5 to run at a constant speed in the direction shown by the arrow in FIG. will be carried out.

[0036] Then, the tensile pin 22 comes into elastic contact with the magnetic tape 5 inside the cassette case 2. This gives the magnetic tape 5 an appropriate tension on the feeding side relative to the head drum 15. option is given.

[0037] Note that the tape cassette 1 is removed from the recording/playback device in the cassette case 2. If the tape guide insertion hole 10 is closed while the tape cassette 1 is being A shutter is provided to open the tape guide insertion hole 10 when the tape guide is inserted into the recording/playback device. If provided, it will be a dustproof measure inside the cassette case 2.

[0038]

[Effect of the idea] As is clear from the above description, the tape cassette of the present invention is The recording media tape is wrapped around a tape reel and stored inside the case, and when in use it is The recording medium tape is pulled out from the cassette case and runs on a predetermined tape running path. The tape cassette is a tape cassette with a tape guide member on the bottom wall of the cassette case. A tape guide insertion hole has been formed for inserting the tape into the cassette case. Features.

[0039] Therefore, in the tape cassette of the present invention, at least one part of the tape guide member is is inserted into the cassette case, and the tape guard is positioned outside the cassette case. Since the number of side members is reduced, the recording and reproducing apparatus can be made smaller.

[0040] In the above embodiment, the tape guide is inserted into the cassette case through the tape guide insertion hole. Although a tensile pin is shown as the tape guide member to be inserted, the tape guide insertion This also means that the tape guide member inserted through the hole is limited to a tensile pin. If the item inserted into the cassette case is not a tape guard other than a ten-leg pin, Of course, it may also be an id member.

[0041] In addition, the specific shape or structure shown in the above embodiments may vary depending on the implementation of the present invention. These are just a few examples of how this invention could be implemented. The technical scope shall not be construed to be limited.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view of the tape cassette of the present invention.

FIG. 2 is a schematic perspective view of a tape cassette.

FIG. 3 is a bottom view of the tape cassette.

FIG. 4 is a plan view schematically showing a recording and reproducing apparatus using the tape cassette according to the present invention.

5 is a partially cutaway plan view showing a tape cassette installed in the recording/reproducing apparatus shown in FIG. 4; FIG.

FIG. 6 is a partially cutaway plan view showing a state in which tape loading is completed.

FIG. 7 is a partially cutaway plan view showing the state during recording or reproduction.

[Explanation of symbols]

1 tape cassette 2a Bottom wall 3 Tape reel 4 Tape reel 5 Recording media tape 10 Tape guide insertion hole 22 Tape guide member

Claims (1)

[Scope of utility model registration request] 1. A tape cassette in which a recording medium tape is wound around a tape reel and stored in a cassette case, and when in use, the recording medium tape is pulled out from the cassette case and runs on a predetermined tape running path. A tape cassette, characterized in that a tape guide insertion hole for inserting a tape guide member into the cassette case is formed in the bottom wall of the cassette case.