JPH03110689U

JPH03110689U -

Info

Publication number: JPH03110689U
Application number: JP1838490U
Authority: JP
Priority date: 1990-02-26
Filing date: 1990-02-26
Publication date: 1991-11-13

Description

[Brief explanation of drawings]

第１図〜第９図は本考案の実施例を示すもので
あつて、第１図は下ハーフの拡大部分平面図、第
２図は第１図の−線拡大断面図、第３図は下
ハーフの拡大平面図、第４図は他の例による下ハ
ーフの拡大部分平面図、第５図及び第６図はカセ
ツト情報検出機構の要部拡大断面図、第７図は更
に他の例による下ハーフの拡大部分平面図、第８
図は第７図の−線拡大断面図、第９図は第７
図の−線拡大断面図である。第１０図〜第１
２図は貫通孔の開口を容易にした改良されたカセ
ツト本体を示し、第１０図は下ハーフの拡大部分
平面図、第１１図は第１０図の−線拡大
断面図、第１２図は第１０図の−線拡大
断面図である。第１３図〜第１８図は従来例を示
すものであつて、第１３図は８ミリビデオ用のテ
ープカセツトの斜視図、第１４図は同テープカセ
ツトの一部断面平面図、第１５図は同テープカセ
ツトの右側面図、第１６図は同テープカセツトの
誤消去防止機構（被検出子）の周辺の内部拡大平
面図、第１７図は第１６図の−線断面図
、第１８図はＤＡＴ用のテープカセツトの裏面側
の斜視図、である。なお、図面に示された符号において、１……カ
セツト本体、１ａ……上ハーフ、１ｂ……下ハー
フ、２……磁気テープ、４……底壁、２３……検
出部、３０Ａ，３０Ｂ，５０Ａ，５０Ｂ……被検
出手段、３１……ガイド壁、３２Ａ，３２Ｂ，３
２Ｃ……壁部、３３Ａ，３３Ｂ，３６Ａ，３６Ｂ
……リブ、３４，３５，３６……空間、３７，５
７……閉塞部（円板部分）、３８，８８……耳、
３９，６０……凹部、４０，９０……スリツト、
４２……貫通孔、４４……被検出子（スライド部
材）、５８Ａ，５８Ｂ……円筒状壁部、である。 1 to 9 show an embodiment of the present invention, in which FIG. 1 is an enlarged partial plan view of the lower half, FIG. 2 is an enlarged sectional view taken along the line - - of FIG. 1, and FIG. FIG. 4 is an enlarged partial plan view of the lower half according to another example, FIGS. 5 and 6 are enlarged sectional views of main parts of the cassette information detection mechanism, and FIG. 7 is still another example. Enlarged partial plan view of the lower half by
The figure is a - line enlarged sectional view of Figure 7, and Figure 9 is an enlarged cross-sectional view of Figure 7.
It is a - line enlarged sectional view of a figure. Figure 10~1
Figure 2 shows an improved cassette main body in which the opening of the through hole is made easier, Figure 10 is an enlarged partial plan view of the lower half, Figure 11 is an enlarged sectional view taken along the line - - in Figure 10, and Figure 12 is an enlarged partial plan view of the lower half. 10 is an enlarged sectional view taken along the line - in FIG. 10. FIG. 13 to 18 show conventional examples, in which FIG. 13 is a perspective view of a tape cassette for 8 mm video, FIG. 14 is a partially sectional plan view of the tape cassette, and FIG. 15 is a perspective view of a tape cassette for 8 mm video. A right side view of the tape cassette, FIG. 16 is an enlarged internal plan view of the periphery of the accidental erasure prevention mechanism (detected element) of the tape cassette, FIG. 17 is a sectional view taken along the - line in FIG. 16, and FIG. FIG. 3 is a perspective view of the back side of a tape cassette for DAT. In addition, in the symbols shown in the drawings, 1...cassette body, 1a...upper half, 1b...lower half, 2...magnetic tape, 4...bottom wall, 23...detection section, 30A, 30B, 50A, 50B...Detected means, 31...Guide wall, 32A, 32B, 3
2C...Wall part, 33A, 33B, 36A, 36B
...Rib, 34,35,36...Space, 37,5
7... Obstruction part (disk part), 38, 88... Ear,
39, 60... recess, 40, 90... slit,
42...through hole, 44...detected element (slide member), 58A, 58B...cylindrical wall portion.

Claims

[Scope of utility model registration request]

A detected element for detecting the first cassette information is movably provided on the cassette body, a detected means for detecting the second cassette information is provided on the cassette body, and the detected means comprises: The cassette body is configured so that either one of forming a through hole opening in the surface of the cassette body or closing the through hole can be selected, and the detecting element and the detecting element located near the detecting element are connected to each other. A tape cassette in which the detection means are substantially separated from each other by a wall provided in the cassette body.