JPS648281U

JPS648281U -

Info

Publication number: JPS648281U
Application number: JP10132087U
Authority: JP
Priority date: 1987-06-30
Filing date: 1987-06-30
Publication date: 1989-01-18

Description

[Brief explanation of the drawing]

第１図〜第１３図は本考案の実施例を示すもの
であつて、第１図ａはリールフランジの平面図、
同図ｂはリールフランジの裏面図、第２図はリー
ルフランジが積み重ねられた状態を示す第１図の
―線矢視断面図、第３図は第２図の部分拡大
断面図、第４図はリールハブの平面図、第５図ａ
はピボツトを示す平面図、同図ｂは同じく側面図
、同図ｃは同じく斜視図、同図ｄは同じく底面図
、第６図ａはリールフランジ１がリールハブに固
定された状態を示す平面図、同図ｂは同図ａの要
部拡大平面図、第７図ａはリールフランジがリー
ルハブに固定される前の状態を示す第６図の―
線矢視断面図、同図ｂは固定された後の状態を
示す第６図の―線矢視断面図、第８図は他の
リールハブが他のリールフランジに固定された後
の状態を示す断面図、第９図ａはビデオテープレ
コーダ用のテープカセツトの平面図、同図ｂは同
図ａのｂ―ｂ線断面図、第１０図はリールフ
ランジを示す平面図、第１１図はリールフランジ
を積み重ねた状態を示す第１０図の―線
矢視断面図、第１２図はリールフランジがリール
ハブに固定された状態を示す平面図、第１３図は
第１２図の要部を拡大して示す―線矢視
断面図である。第１４図〜第２０図は従来例を示
すものであつて、第１４図はリールフランジを示
す平面図、第１５図はリールフランジがリールハ
ブに固定された状態を示す平面図、第１６図は第
１５図の要部を拡大して示す―線矢視断
面図、第１７図はリールフランジを積み重ねた状
態を示す第１４図の―線矢視断面図、第
１８図は他のリールフランジを示す平面図、第１
９図はリールフランジを積み重ねた状態を示す第
１８図の―線矢視断面図、第２０図は第
１７図におけるリブと突起との接触状態を示す断
面図である。なお、図面に示す符号において、１，１１，４
１，５１，７１，８１……リールフランジ、１ａ
，１１ａ，５１ａ，７１ａ，８１ａ……リールフ
ランジ上側面、１ｂ，１１ｂ，５１ｂ，７１ｂ，
８１ｂ……リールフランジ下側面、２，２Ａ，５
２……点状突起、３，１４，５３……ピボツト挿
通孔、４，５４，７４，８４……凹部、５，５５
……空気穴、７……ピボツト位置決め用凹部、８
……融着用突起、９……円環状突起、９ａ，５９
ａ……突起表面、１５，２４，４５，６５……リ
ールハブ、１７……融着用台座部、２５……ピボ
ツト、２６……点状突起部、２７……基部、３０
……テープカセツト、３３……リーフスプリング
、５９……円形突起、６３……融着用突起、２２
，６４……ピボツト（部）、７２……リブ、９０
……挿入用空間である。 1 to 13 show embodiments of the present invention, in which FIG. 1a is a plan view of the reel flange;
Figure b is a back view of the reel flange, Figure 2 is a sectional view taken along the line - - in Figure 1 showing the stacked state of the reel flanges, Figure 3 is a partially enlarged sectional view of Figure 2, and Figure 4. is a plan view of the reel hub, Fig. 5a
6 is a plan view showing the pivot, FIG. 6B is a side view, FIG. 6C is a perspective view, FIG. 6D is a bottom view, and FIG. , FIG. 7b is an enlarged plan view of the main part of FIG. 7a, and FIG. 7a is a view of FIG.
A cross-sectional view taken along the line arrow in FIG. 6, which shows the state after the reel hub is fixed, and FIG. 8 shows the state after the other reel hub is fixed to the other reel flange. 9a is a plan view of a tape cassette for a video tape recorder, FIG. 9b is a sectional view taken along line bb of FIG. FIG. 10 is a cross-sectional view taken along the line arrow - - showing a stacked state of the flanges, FIG. 12 is a plan view showing a state in which the reel flange is fixed to the reel hub, and FIG. 13 is an enlarged view of the main part of FIG. 12. FIG. 14 to 20 show conventional examples, in which FIG. 14 is a plan view showing the reel flange, FIG. 15 is a plan view showing the state in which the reel flange is fixed to the reel hub, and FIG. 16 is a plan view showing the reel flange. Fig. 15 is an enlarged cross-sectional view taken along the line showing the main parts of Fig. 15, Fig. 17 is a cross-sectional view taken along the line shown in Fig. 14 showing the stacked reel flanges, and Fig. 18 is a cross-sectional view taken along the line showing the stacked reel flanges. Plan view shown, 1st
FIG. 9 is a cross-sectional view taken along the line -- in FIG. 18 showing a stacked state of the reel flanges, and FIG. 20 is a cross-sectional view showing a contact state between the rib and the protrusion in FIG. 17. In addition, in the symbols shown in the drawings, 1, 11, 4
1, 51, 71, 81... Reel flange, 1a
, 11a, 51a, 71a, 81a... Reel flange upper surface, 1b, 11b, 51b, 71b,
81b... lower surface of reel flange, 2, 2A, 5
2... Point-like projection, 3, 14, 53... Pivot insertion hole, 4, 54, 74, 84... Recess, 5, 55
...Air hole, 7...Pivot positioning recess, 8
... Fusion projection, 9 ... Annular projection, 9a, 59
a... Projection surface, 15, 24, 45, 65... Reel hub, 17... Fusion pedestal, 25... Pivot, 26... Dotted projection, 27... Base, 30
... Tape cassette, 33 ... Leaf spring, 59 ... Circular projection, 63 ... Fusion projection, 22
, 64... Pivot (part), 72... Rib, 90
...This is a space for insertion.

Claims

[Scope of utility model registration request]

In a tape cassette having a reel hub around which a tape is wound and a reel flange fixed to the reel hub, a point-like projection is provided on the reel flange on a surface opposite to the reel hub, and the point-like projection is A tape cassette characterized in that the tape cassette is located around the rotation center of the reel hub.