JPS61105975U

JPS61105975U -

Info

Publication number: JPS61105975U
Application number: JP18995484U
Authority: JP
Priority date: 1984-12-14
Filing date: 1984-12-14
Publication date: 1986-07-05

Description

[Brief explanation of the drawing]

第１図〜第６図は本考案の実施例を示すもので
あつて、第１図はテープカセツトの要部の部分断
面図、第２図はＶＨＳ方式のテープカセツトの上
ハーフ内面を示す平面図、第３図は同テープカセ
ツトの下ハーフ内面を示す平面図、第４図は同テ
ープカセツトの下ハーフの一部分の斜視図、第５
図はベータ方式のテープカセツトの上ハーフ内面
を示す平面図、第６図は同テープカセツトの下ハ
ーフ内面を示す平面図である。第７図〜第１０図
は従来例を示すものであつて、第７図はＶＨＳ方
式のテープカセツトの平面図、第８図は第７図の
―線断面図、第９図は同テープカセツトの要
部の部分断面図、第１０図は成形時の「ヒケ」を
説明するための第９図のＸ―Ｘ線拡大断面図（但
、両ハーフは離間させて示している。）である。なお、図面に示した符号において、４，３４…
…下ハーフ、６，３６……上ハーフ、７，８，２
０……リールフランジ、９，１０，３９……窓、
１２，１３……リールハブ、２４，２５，４４，
４５……内部フエンス部である。 1 to 6 show an embodiment of the present invention, in which FIG. 1 is a partial cross-sectional view of the main part of a tape cassette, and FIG. 2 is a plan view showing the inner surface of the upper half of a VHS tape cassette. Figure 3 is a plan view showing the inner surface of the lower half of the tape cassette, Figure 4 is a perspective view of a portion of the lower half of the tape cassette, and Figure 5 is a partial perspective view of the lower half of the tape cassette.
This figure is a plan view showing the inner surface of the upper half of a Beta type tape cassette, and FIG. 6 is a plan view showing the inner surface of the lower half of the same tape cassette. 7 to 10 show conventional examples, in which FIG. 7 is a plan view of a VHS tape cassette, FIG. 8 is a sectional view taken along the line -- in FIG. FIG. 10 is an enlarged cross-sectional view taken along line X--X of FIG. 9 to explain "sink marks" during molding (however, both halves are shown separated from each other). . In addition, in the symbols shown in the drawings, 4, 34...
...lower half, 6,36...upper half, 7,8,2
0... Reel flange, 9, 10, 39... Window,
12, 13... Reel hub, 24, 25, 44,
45...Internal fence section.

Claims

[Scope of utility model registration request]

A tape cassette characterized in that the height of at least a portion of an internal fence provided in a cassette half around a tape reel is reduced.