JPS59107780U

JPS59107780U - tape cassette

Info

Publication number: JPS59107780U
Application number: JP20103082U
Authority: JP
Inventors: 雅之原田; 伸佐々木
Original assignee: ソニー株式会社
Priority date: 1982-12-29
Filing date: 1982-12-29
Publication date: 1984-07-20

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
例を示した平面図、第２図は同上の側面図、第３図は要
部の一部切欠分解斜視図、第４図は第２図の要部の拡大
一部切欠側面図、第５図は第４図の■−■線での拡大断
面図、第６図は第４図のＶｌ−ＶＩ線での拡大断面図で
ある。第７図〜第１０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を示したものであって、第
７図は第１実施例における要部の分解斜視図、第８図は
同上の第６図と同様な拡大断面図、第９図は第２実施例
における要部の分解斜視図、第１０図は同上の第６図と
同様な拡大断面図である。また図面に用いられた符号において、１・・・・・・前
蓋、１ａ・・・・・・左右両端部、２・・・・・・カセ
ット筐体、２ａ・・・・・・左右両側壁、５・・・・・
・支点ピン、９・・・・・・ピン挿入孔、１０・・・・
・・前面開口、１２・・・・・・捩りコイルばね、１５
・・・・・田ツクレバー、２０・・・・・・ばね、２１
・・・・・・被ロック用突起、２７．２８・・・・・・
凹凸係合面、３０．３１・・・・・・テーパ面である。Fig. 1 is a plan view showing a conventional example of a tape cassette for a video tape recorder, Fig. 2 is a side view of the same as above, Fig. 3 is a partially cutaway exploded perspective view of the main part, and Fig. 4 is the same as Fig. 2. FIG. 5 is an enlarged sectional view taken along the line ■--■ in FIG. 4, and FIG. 6 is an enlarged sectional view taken along the line Vl--VI in FIG. 4. 7 to 10 show a tape cassette for a video tape recorder to which the present invention is applied. FIG. 7 is an exploded perspective view of the main parts in the first embodiment, and FIG. 6 is an enlarged sectional view similar to FIG. 6, FIG. 9 is an exploded perspective view of essential parts in the second embodiment, and FIG. 10 is an enlarged sectional view similar to FIG. 6 above. In addition, in the symbols used in the drawings, 1...Front lid, 1a...Both left and right ends, 2...Cassette housing, 2a...Both left and right sides. Wall, 5...
・Fulcrum pin, 9...Pin insertion hole, 10...
...Front opening, 12...Torsion coil spring, 15
...Tatsukuru lever, 20... Spring, 21
...Locked protrusion, 27.28...
The uneven engagement surface, 30.31... is a tapered surface.

Claims

[Scope of utility model registration request]

A pair of fulcrum pins are integrally provided inside the left and right ends of the front cover, which has a 3-shaped planar shape, and the pair of fulcrum pins of the front cover are connected to a pair of fulcrum pins provided on the left and right side walls of the cassette case. The pin is inserted into the pin insertion hole and rotatably mounted, and is configured so that the opening provided on the front surface of the cassette housing can be opened and closed by rotating the front cover, and is wrapped around the outer periphery of at least one of the fulcrum pins. The torsion coil spring rotates and urges the front lid in the closing direction, and engages with a locking protrusion integrally provided inside one end of the front lid to close the front lid. A lock lever for locking is attached to the cassette case so as to be rotatable in the front and back direction, and the lock lever is urged to rotate toward the front side of the cassette case by a spring so as to engage with the locking protrusion of the front cover. In the tape cassette, when the lock lever is engaged with the locking protrusion of the front cover in a locked state in which the front cover is closed, the lock lever is engaged with the locking protrusion of the front cover. In order to prevent the one end portion from bending outward of the side wall of the cassette casing with the lock lever, the mutual engagement surface between the lock lever and the locking protrusion is formed into a concave and convex engagement surface or A tape cassette characterized by having a tapered surface.