JPS6074281U

JPS6074281U - tape cassette

Info

Publication number: JPS6074281U
Application number: JP16504383U
Authority: JP
Inventors: 雅之原田
Original assignee: ソニー株式会社
Priority date: 1983-10-25
Filing date: 1983-10-25
Publication date: 1985-05-24
Also published as: JPH0514374Y2

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 the drawing]

第１図〜第４図はビデオテープレコーダ用テープカセッ
トの従来例を示したものであって、第１図は平面図、第
２図は第１図の■−■線での拡大断面図、第３図はテー
プカセットの使用時における第２図と同様な拡大断面図
、第４図はリールの浮き上がりを説明する第２図と同様
な拡大断面図である。第５図〜第７図は本考案を適用し
たビデオテープレコーダ用テープカセットの一実施例を
示したものであって、第５図は透明窓板及び上ハーフを
下方から見た一部切欠斜視図、第６図は要部の拡大断面
図、第７図はリールの浮き上がりが規制された状態を説
明する第６図と同様な拡大断面図である。゛なお、図面に用いられた符号において、１・・・・・
・カセット筐体、２・・・・・・上ハーフ、３・・・・
・・下ハーフ、４，５・・・・・・リール、６・・・・
・・磁気テープ、１？・・・・・・窓孔、１３・・・・
・・環状凹部、１４・・・・・・透明窓板、１５・・・
・・・フランジ部、１６・・・・・・上部凸状部分、１
７・・・・・・上フランジ、１８・・・・・・下フラン
ジ、１９・・・・・・リールハブ、２０・・・・・・リ
ール嵌合部、２１・・・・・・リール嵌合孔、３０・・
・・・・リブ、３０ａ・・・・・・リブの下端である。 −）第６図　　　　　　　− 第５図、７１４Ｊσ1 to 4 show conventional examples of tape cassettes for video tape recorders, in which FIG. 1 is a plan view, FIG. 2 is an enlarged sectional view taken along the line ■-■ in FIG. FIG. 3 is an enlarged sectional view similar to FIG. 2 when the tape cassette is in use, and FIG. 4 is an enlarged sectional view similar to FIG. 2 illustrating lifting of the reel. Figures 5 to 7 show an embodiment of a tape cassette for a video tape recorder to which the present invention is applied, and Figure 5 is a partially cutaway perspective view of the transparent window plate and upper half seen from below. 6 is an enlarged sectional view of the main part, and FIG. 7 is an enlarged sectional view similar to FIG. 6, illustrating a state in which lifting of the reel is restricted.゛In addition, in the symbols used in the drawings, 1...
・Cassette case, 2...Top half, 3...
...lower half, 4,5...reel, 6...
...Magnetic tape, 1? ...Window hole, 13...
...Annular recess, 14...Transparent window plate, 15...
...Flange part, 16...Top convex part, 1
7... Upper flange, 18... Lower flange, 19... Reel hub, 20... Reel fitting part, 21... Reel fitting Matching hole, 30...
. . . Rib, 30a . . . Lower end of the rib. -) Figure 6 - Figure 5, 714 Jσ

Claims

[Scope of utility model registration request]

A cassette housing composed of upper and lower halves, a pair of left and right reels rotatably housed within this cassette housing,
A window hole provided in the upper half and having an annular recess in the lower peripheral part, and a transparent window plate having a convex cross section S and formed by integrally molding a flange part in the lower peripheral part, and the transparent window A plate is fitted into the window hole from below through its upper convex portion, and its flange is fitted into the annular recess from below, so that the transparent window plate is integrated into the upper half at the flange. In the welded tape cassette, an annular rib is integrally formed along the lower part of the flange part of the transparent window plate, and the lower end of this rib is made to protrude downward from the upper half, so that the lower end of this rib A tape cassette characterized in that the tape cassette is configured to restrict upward floating of the pair of left and right reels within the cassette housing.