JPH02123774U

JPH02123774U -

Info

Publication number: JPH02123774U
Application number: JP2998389U
Authority: JP
Priority date: 1989-03-16
Filing date: 1989-03-16
Publication date: 1990-10-11

Description

[Brief explanation of the drawing]

第１図〜第５図は本考案の実施例を示すもので
あつて、第１図は８ミリビデオ用のテープカセツ
トの要部断面図、第２図は第１図の−線断面
図、第３図は同テープカセツトの一部断面平面図
、第４図、第５図は他の例による８ミリビデオ用
のテープカセツトの各要部断面図、第６図〜第８
図は従来例を示すものであつて、第６図は８ミリ
ビデオ用のテープカセツトの斜視図、第７図はロ
ツク機構の分解斜視図、第８図は同ロツク機構の
一部断面側面図、である。なお、図面に示した符号において、２０……磁
気テープ、４０……ばね受け、４１……前蓋、４
１ａ……軸、４１ｂ……側壁部、４１ｃ……前方
部、４１ｄ……最大壁厚部、４２……開口部、４
３……突片、４４……突き当て面、４５ａ……ケ
ース側壁、４６……軸孔、４７……捩じりばね、
５６……ロツク部材、６０……係合爪、６１……
被押圧部、６２……スライド部、６３，７３……
傾斜面、６５……切欠部、６６……傾斜案内面、
６７……被係合部、７１……前面板、８１……ロ
ツク解除部材、８４……スプリング、である。 1 to 5 show an embodiment of the present invention, in which FIG. 1 is a sectional view of the main part of an 8 mm video tape cassette, FIG. 2 is a sectional view taken along the line -- in FIG. 1, and FIG. FIG. 3 is a partially sectional plan view of the same tape cassette, FIGS. 4 and 5 are sectional views of main parts of another example of an 8 mm video tape cassette, and FIGS.
The figures show conventional examples, in which Fig. 6 is a perspective view of an 8 mm video tape cassette, Fig. 7 is an exploded perspective view of the lock mechanism, and Fig. 8 is a partially sectional side view of the same lock mechanism. , is. In addition, in the symbols shown in the drawings, 20...magnetic tape, 40...spring holder, 41...front cover, 4
1a...Axis, 41b...Side wall part, 41c...Front part, 41d...Maximum wall thickness part, 42...Opening part, 4
3... Projection piece, 44... Abutment surface, 45a... Case side wall, 46... Shaft hole, 47... Torsion spring,
56... Lock member, 60... Engaging claw, 61...
Pressed part, 62... Slide part, 63, 73...
Inclined surface, 65... Notch, 66... Inclined guide surface,
67...Engaged portion, 71...Front plate, 81...Lock release member, 84...Spring.

Claims

[Scope of utility model registration request]

In a tape cassette in which a front cover that can be opened and closed on the front side of the cassette body is attached to the cassette body, a side wall portion of the front cover that is pivotally supported with respect to the cassette body extends from the front side of the cassette body to the rear side. A tape cassette characterized in that the tape cassette has a wall thickness that gradually increases in thickness.