JPS6336980U

JPS6336980U -

Info

Publication number: JPS6336980U
Application number: JP12916786U
Authority: JP
Priority date: 1986-08-25
Filing date: 1986-08-25
Publication date: 1988-03-09

Description

[Brief explanation of the drawing]

第１図乃至第３図は本考案の一実施例を示し、
第１図は前蓋の金型成形を示す断面図、第２図は
上ハーフを内面側から見た要部の断面底面図、第
３図は第２図の―断面図、第４図及び第５図
は従来例を示し、第４図は磁気テープカセツトを
下ハーフ側から見た一部切欠き底面図、第５図は
第４図の―断面図である。１……磁気テープカセツト、２……上ハーフ、
３……下ハーフ、４……カセツト本体、５……磁
気テープ、６……供給リール、７……巻取リール
、１５……前蓋、１６……回動支軸、１７……ス
リツト、１８……固定型、１９……可動型、２０
……金型、２１……スプリング、２１ａ……固定
端、２１ｂ……先端、２１ｃ……スプリング部、
２２……ガイド溝、２３……係止突起、２４……
前蓋係止部材。 1 to 3 show an embodiment of the present invention,
Figure 1 is a cross-sectional view showing the molding of the front cover, Figure 2 is a cross-sectional bottom view of the main part of the upper half viewed from the inside, Figure 3 is a cross-sectional view of Figure 2, Figures 4 and FIG. 5 shows a conventional example, FIG. 4 is a partially cutaway bottom view of the magnetic tape cassette seen from the lower half side, and FIG. 5 is a cross-sectional view taken from FIG. 4. 1... Magnetic tape cassette, 2... Upper half,
3...lower half, 4...cassette body, 5...magnetic tape, 6...supply reel, 7...take-up reel, 15...front cover, 16...rotation shaft, 17...slit, 18...Fixed type, 19...Movable type, 20
...Mold, 21...Spring, 21a...Fixed end, 21b...Tip, 21c...Spring part,
22... Guide groove, 23... Locking protrusion, 24...
Front lid locking member.

Claims

[Scope of utility model registration request]

A front cover that covers a magnetic tape that is fed out to the front of the cassette body from a winding reel housed in a cassette body consisting of an upper half and a lower half is pivotally supported on the upper half so that it can be opened and closed, and the front cover is always oriented in the closed direction. In a magnetic tape cassette in which a biasing spring is provided on a pivot shaft of a front cover, an axial slit is provided in the pivot shaft in the direction of removal of the front cover mold, and a fixing member is secured to the slit. A magnetic tape cassette characterized in that the rotation support shaft is provided with a spring having a loop-shaped spring portion formed at an end and a free end extending from the fixed end.