JPH0272489U - - Google Patents

Info

Publication number
JPH0272489U
JPH0272489U JP14840788U JP14840788U JPH0272489U JP H0272489 U JPH0272489 U JP H0272489U JP 14840788 U JP14840788 U JP 14840788U JP 14840788 U JP14840788 U JP 14840788U JP H0272489 U JPH0272489 U JP H0272489U
Authority
JP
Japan
Prior art keywords
cassette
molding
magnetic tape
window
mold
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.)
Granted
Application number
JP14840788U
Other languages
Japanese (ja)
Other versions
JPH0755728Y2 (en
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988148407U priority Critical patent/JPH0755728Y2/en
Publication of JPH0272489U publication Critical patent/JPH0272489U/ja
Application granted granted Critical
Publication of JPH0755728Y2 publication Critical patent/JPH0755728Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案の一実施態様によるオーデイオ
用コンパクトカセツトの上カセツトハーフの概略
構造を示すカセツト前後方向断面図、第２図は第
１図に示す上カセツトハーフの成形する金型の概
略断面図、第３図は従来の磁気テープカセツトの
平面図、第４図及び第５図は第３図の磁気テープ
カセツトの成形工程を示す金型の断面図である。 図中の符号、１……ケースボデイ、２ａ……カ
セツトハーフ本体、３ａ……上カセツトハーフ、
３ｂ……下カセツトハーフ、４……ハブ、５……
磁気テープ、６ａ，６ｂ……窓部、１０……上カ
セツトハーフ、１１ａ，１１ｂ……窓部、１２，
１４……肩部、１３……カセツトハーフ本体、２
０……固定金型、２１……可動金型、２２……成
形部、２４……金型内空間、２６，２７……成形
部、３０……固定金型、３１……可動金型、３３
，３４……スライドコア、３５……金型内空間、
３６……サブマリンゲート、３７，３８……金型
内空間、３９，４０……ダイレクトゲート、４１
……ゲート跡。 Fig. 1 is a cassette longitudinal sectional view showing the schematic structure of the upper cassette half of a compact audio cassette according to an embodiment of the present invention, and Fig. 2 is a schematic sectional view of a mold for molding the upper cassette half shown in Fig. 1. 3 are plan views of a conventional magnetic tape cassette, and FIGS. 4 and 5 are cross-sectional views of a mold showing the process of molding the magnetic tape cassette of FIG. Symbols in the diagram: 1...Case body, 2a...Cassette half body, 3a...Upper cassette half,
3b...lower cassette half, 4...hub, 5...
Magnetic tape, 6a, 6b...Window part, 10...Upper cassette half, 11a, 11b...Window part, 12,
14...Shoulder part, 13...Cassette half body, 2
0... Fixed mold, 21... Movable mold, 22... Molding part, 24... Mold interior space, 26, 27... Molding part, 30... Fixed mold, 31... Movable mold, 33
, 34...Slide core, 35...Mold interior space,
36... Submarine gate, 37, 38... Space inside the mold, 39, 40... Direct gate, 41
... Gate remains.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 多色成形方法により窓部が一体成形されたカセ
ツトハーフを有する磁気テープカセツトにおいて
、１次成形により前記窓部を射出成形するための
１次樹脂を注入したゲート跡が、２次成形により
前記カセツトハーフ本体を射出成形するための２
次樹脂に覆われてカセツトハーフ表面に露呈しな
いように構成されたことを特徴とする磁気テープ
カセツト。 In a magnetic tape cassette having a cassette half with a window integrally molded by a multicolor molding method, the gate mark where the primary resin was injected for injection molding the window by the primary molding is removed from the cassette by the secondary molding. 2 for injection molding the half body
A magnetic tape cassette characterized in that it is covered with a resin so that it is not exposed on the surface of the cassette half.
JP1988148407U 1988-11-16 1988-11-16 Magnetic tape cassette Expired - Lifetime JPH0755728Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988148407U JPH0755728Y2 (en) 1988-11-16 1988-11-16 Magnetic tape cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988148407U JPH0755728Y2 (en) 1988-11-16 1988-11-16 Magnetic tape cassette

Publications (2)

Publication Number Publication Date
JPH0272489U true JPH0272489U (en) 1990-06-01
JPH0755728Y2 JPH0755728Y2 (en) 1995-12-20

Family

ID=31419705

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988148407U Expired - Lifetime JPH0755728Y2 (en) 1988-11-16 1988-11-16 Magnetic tape cassette

Country Status (1)

Country Link
JP (1) JPH0755728Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021019822A1 (en) * 2019-07-29 2021-02-04

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201325U (en) * 1981-06-19 1982-12-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57201325U (en) * 1981-06-19 1982-12-21

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2021019822A1 (en) * 2019-07-29 2021-02-04
WO2021019822A1 (en) * 2019-07-29 2021-02-04 アルプスアルパイン株式会社 Molded article

Also Published As

Publication number Publication date
JPH0755728Y2 (en) 1995-12-20

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