JPH0398774U

JPH0398774U -

Info

Publication number: JPH0398774U
Application number: JP1990007705U
Authority: JP
Priority date: 1990-01-30
Filing date: 1990-01-30
Publication date: 1991-10-15
Anticipated expiration: 2005-01-30
Also published as: JP2500832Y2

Description

[Brief explanation of the drawing]

第１図ないし第８図は本考案のシヤツタ付きデ
イスクカートリツジの一実施例を示し、第１図は
捩りコイルばねの屈曲端部を係止すべき箇所の部
分切欠斜視図、第２図は第１図におけると同じ箇
所の正面図、第３図は捩りコイルばねの斜視図、
第４図は伸動作時の捩りコイルばねを下半片の一
部と共に示す平面図、第５図は屈動作時の捩りコ
イルばねを下半片の一部と共に示す平面図、第６
図はシヤツタ及びスライダの分解斜視図、第７図
はシヤツタを閉じた状態のデイスクカートリツジ
の斜視図、第８図はシヤツタを開いたときのデイ
スクカートリツジ内の斜視図、第９図及び第１０
図は従来例を示し、第９図は第４図に対応して示
す部分切欠平面図、第１０図は第５図に対応して
示す部分切欠平面図である。９……デイスクカートリツジ、１０……上半片
、１１……下半片、１５……シヤツタ、２０……
スライダ、２７……ガイド溝、２８……ガイドレ
ール、３０……捩りコイルばね、３２……腕、３
２ａ……屈曲端部、３４……周壁部、３５，３６
……挟持片、３８……挿入口、３９，４０……突
起、４１……空室。 1 to 8 show an embodiment of the disk cartridge with shutter of the present invention, FIG. 1 is a partially cutaway perspective view of a portion where the bent end of the torsion coil spring is to be locked, and FIG. A front view of the same location as in Figure 1, Figure 3 is a perspective view of the torsion coil spring,
FIG. 4 is a plan view showing the torsion coil spring during extension operation together with a part of the lower half piece; FIG. 5 is a plan view showing the torsion coil spring during bending action together with a part of the lower half piece;
The figure is an exploded perspective view of the shutter and slider, Figure 7 is a perspective view of the disc cartridge with the shutter closed, Figure 8 is a perspective view of the inside of the disc cartridge with the shutter open, Figures 9 and 9 are 10
The figures show a conventional example; FIG. 9 is a partially cutaway plan view corresponding to FIG. 4, and FIG. 10 is a partially cutaway plan view corresponding to FIG. 5. 9... Disk cartridge, 10... Upper half piece, 11... Lower half piece, 15... Shutter, 20...
Slider, 27... Guide groove, 28... Guide rail, 30... Torsion coil spring, 32... Arm, 3
2a...bent end portion, 34...peripheral wall portion, 35, 36
...Pinching piece, 38...Insertion port, 39, 40...Protrusion, 41...Empty room.

Claims

[Claims for Utility Model Registration] In a structure for mounting a torsion coil spring that biases a shutter of a disc cartridge in a closing direction on a peripheral wall of the disc cartridge, the torsion coil spring is attached to an end of the torsion coil spring on the peripheral wall side. A bent end portion is formed perpendicular to the bending and stretching direction of the coil spring, and two clamping pieces are provided on the peripheral wall portion and extending parallel to the bending and stretching direction of the torsion coil spring,
Two protrusions forming an insertion opening of the bent end along a direction intersecting the bending/stretching direction are provided at the tip of each of the clamping pieces, and the bent end is formed by the clamping piece and the protrusion. A mounting structure for a torsion coil spring in a disk cartridge, characterized in that the torsion coil spring is inserted into a hollow chamber.