JPH0255475U - - Google Patents
Info
- Publication number
- JPH0255475U JPH0255475U JP13226588U JP13226588U JPH0255475U JP H0255475 U JPH0255475 U JP H0255475U JP 13226588 U JP13226588 U JP 13226588U JP 13226588 U JP13226588 U JP 13226588U JP H0255475 U JPH0255475 U JP H0255475U
- Authority
- JP
- Japan
- Prior art keywords
- hub
- cylindrical portion
- tape reel
- reel
- tape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004804 winding Methods 0.000 claims 1
- 210000000078 claw Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
Description
第１図は本考案を適用したビデオ用下フランジ
付ハブの部分平面図、第２図は第１図のＡ―Ａ線
断面図、第３図は第１図に示した下フランジ付ハ
ブを射出成形する金型の断面図、第４図は従来の
磁気テープカセツト用テープリールの断面図、第
５図及び第６図は従来の下フランジ付ハブを射出
成形する金型の断面図である。
図中の符号、３……テープリール、１０……ハ
ブ、１１……上フランジ、１２……下フランジ、
１３……基準リング、１４……爪、１５……挿通
孔、１６……内筒部、１７……外筒部、１８……
空間、１９……リブ、２０……板ばね、２１，２
９……固定金型、２２，３０……可動金型、２３
……ゲート、２４……突き出しピン、２５，４５
……円筒状の凸部、２６，４６……環状の凸部、
２７……金型空間、２８……射出孔、３１……ハ
ブ、３２……下フランジ、３３……内筒部、３４
……外筒部、３５……リブ、３６……空間部、３
７，３８……閉塞部、３９……リーダーテープ、
４０……止着部材、４１……挿通孔、４２……突
起、４３……基準リング、４７……金型空間、５
１……固定金型、５２……可動金型、５３，５４
，５５……凸部、５６……金型空間。
Fig. 1 is a partial plan view of a hub with a lower flange for video to which the present invention is applied, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is a hub with a lower flange shown in Fig. 1. FIG. 4 is a sectional view of a conventional magnetic tape cassette tape reel, and FIGS. 5 and 6 are sectional views of a conventional mold for injection molding a hub with a lower flange. . Codes in the diagram: 3...Tape reel, 10...Hub, 11...Upper flange, 12...Lower flange,
13...Reference ring, 14...Claw, 15...Insertion hole, 16...Inner cylinder part, 17...Outer cylinder part, 18...
Space, 19... Rib, 20... Leaf spring, 21,2
9... Fixed mold, 22, 30... Movable mold, 23
...Gate, 24...Eject pin, 25,45
... Cylindrical convex part, 26, 46... Annular convex part,
27...Mold space, 28...Injection hole, 31...Hub, 32...Lower flange, 33...Inner cylinder part, 34
...Outer cylinder part, 35...Rib, 36...Space part, 3
7, 38...Occluded part, 39...Leader tape,
40...Fixing member, 41...Through hole, 42...Protrusion, 43...Reference ring, 47...Mold space, 5
1...Fixed mold, 52...Movable mold, 53, 54
, 55...Convex portion, 56...Mold space.
Claims (1)
ールにおいて、前記テープリールの円筒状ハブ部
が、回転駆動軸に係合する内筒部と、該内筒部と
同心的に外側に設けられて前記磁気テープ巻装面
を構成する外筒部と、該外筒部と前記内筒部とを
リール半径方向に沿つて連結すると共に前記外筒
部と前記内筒部とで形成される円環状空間を分割
する複数のリブと、該リブによつて形成された複
数の空間のハブ上面側又はハブ下面側を閉塞させ
ることにより上下に開放面の異なつた空間をハブ
部内に混在させる閉塞部とから構成されたことを
特徴とするテープリール。 In a tape reel for a magnetic tape on which a magnetic tape is wound, the cylindrical hub portion of the tape reel includes an inner tube portion that engages with a rotational drive shaft, and an outer tube provided concentrically with the inner tube portion and the hub portion of the tape reel. an outer cylindrical portion constituting a magnetic tape winding surface; an annular space connecting the outer cylindrical portion and the inner cylindrical portion along the radial direction of the reel and formed by the outer cylindrical portion and the inner cylindrical portion; a plurality of ribs that divide the space, and a closing part that mixes spaces with different open surfaces at the top and bottom in the hub part by closing the hub upper surface side or the hub lower surface side of the plurality of spaces formed by the ribs. A tape reel comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13226588U JPH0255475U (en) | 1988-10-12 | 1988-10-12 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13226588U JPH0255475U (en) | 1988-10-12 | 1988-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0255475U true JPH0255475U (en) | 1990-04-20 |
Family
ID=31389068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13226588U Pending JPH0255475U (en) | 1988-10-12 | 1988-10-12 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0255475U (en) |
-
1988
- 1988-10-12 JP JP13226588U patent/JPH0255475U/ja active Pending