JPS59142977U

JPS59142977U - tape cassette

Info

Publication number: JPS59142977U
Application number: JP3453783U
Authority: JP
Inventors: 雅之原田
Original assignee: ソニー株式会社
Priority date: 1983-03-10
Filing date: 1983-03-10
Publication date: 1984-09-25

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

図面は本考案をビデオテープレコーダ用のテープカセッ
トに適用した実施例を示したものであって、第１図は平
面図、第２図は背面図、第３図は要部の分解斜視図、第
４図は誤消去防止蓋の斜視図、第５図は要部を上下ハー
フの嵌合部分で断面にした拡大平面図、第６図は第５図
ＶＩ−ＶＩ線断面図、第７図は第５図■−■線断面図、
第８図は検出ピンによる検出状況を説明する第７図と同
様の断面図、第９図は変形例における要部の分解斜視図
である。なお図面に用いられている符号において、１・・・カセ
ット筐体、２・・・上ハーフ、３・・・下ハーフ、１５
・・・誤消去防止用検出孔、１６・・・誤消去防止蓋、
１８ａ、　　１８ｂ−・・蓋板、２０ａ、　２０’ｂ−
・・回転軸、２２−・・小突起、２６ａ、　２６ｂ−・
・凹部、２７゜２８・・・係止部である。 −第８図　　　　　　　　／１１６ａThe drawings show an embodiment in which the present invention is applied to a tape cassette for a video tape recorder, in which Fig. 1 is a plan view, Fig. 2 is a rear view, and Fig. 3 is an exploded perspective view of the main parts. Fig. 4 is a perspective view of the accidental erasure prevention lid, Fig. 5 is an enlarged plan view of the main part taken in section at the fitting part of the upper and lower halves, Fig. 6 is a sectional view taken along the line VI-VI of Fig. 5, and Fig. 7 is a cross-sectional view along the line ■-■ in Figure 5,
FIG. 8 is a cross-sectional view similar to FIG. 7 for explaining the state of detection by the detection pin, and FIG. 9 is an exploded perspective view of main parts in a modified example. In addition, in the symbols used in the drawings, 1...Cassette housing, 2...Upper half, 3...Lower half, 15
...Detection hole for preventing accidental erasure, 16... Lid for preventing accidental erasure,
18a, 18b--cover plate, 20a, 20'b-
・Rotating shaft, 22-・Small projections, 26a, 26b-・
- Recessed part, 27°28...Locking part. -Figure 8/11 6a

Claims

[Scope of utility model registration request]

A detection hole for preventing accidental erasure is provided in at least the lower half of a cassette housing composed of upper and lower halves, and a rotatable accidental erasure prevention lid for opening and closing the detection hole is provided inside the cassette housing. In the tape cassette, the rotation axis of the accidental erasure prevention lid is arranged vertically, and the accidental erasure prevention lid is rotated in a horizontal direction about the rotation axis to open and close the detection hole. A tape cassette featuring