JPS6278415U - - Google Patents
Info
- Publication number
- JPS6278415U JPS6278415U JP16970385U JP16970385U JPS6278415U JP S6278415 U JPS6278415 U JP S6278415U JP 16970385 U JP16970385 U JP 16970385U JP 16970385 U JP16970385 U JP 16970385U JP S6278415 U JPS6278415 U JP S6278415U
- Authority
- JP
- Japan
- Prior art keywords
- stamper
- mold
- fixed
- optical disk
- mold side
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 238000001746 injection moulding Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000010030 laminating Methods 0.000 description 1
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
Description
第１図は本考案に係る光デイスク基盤用成形型
を備えた射出成形機の要部を示す説明図であり、
第２図は第１図の成形型の要部を示す断面説明図
であり、第３図は第１図の成形型を用いて成形さ
れる光デイスク基盤を示す断面図である。第４図
および第５図は、それぞれ第１図の成形型を用い
て光デイスク基盤を射出成形する際の異なる射出
操作段階における可動金型と固定金型との相対位
置関係を説明するための第２図に相当する断面図
である。第６図は、第３図の光デイスク基盤の張
り合わせによつて製作される光デイスク基盤製品
の要部を示す断面図である。第７図は従来の光デ
イスク基盤用成形型を示す第２図に相当する図で
あり、第８図はその従来の成形型を用いて成形さ
れる光デイスク基盤を示す第３図に相当する図で
あり、第９図は第８図の光デイスク基盤の張り合
わせ体を示す要部断面図である。
２０：光デイスク基盤用成形型、２４：固定金
型、２８：可動金型、３０：製品キヤビテイ、３
４：可動ミラーブロツク、３６：固定ミラーブロ
ツク、３８：スタンパ押えリング、４０：スタン
パ面、４２：スタンパ、４６：固定リング、４８
：弾性部材（付勢手段）、５０：ボルト（ストツ
パ手段）、５７：射出材料、６２：突部、６４：
内周面（規定面）、６６：光デイスク基盤、６８
：外周面、７０：情報記録面、７２：フラツト面
。
FIG. 1 is an explanatory diagram showing the main parts of an injection molding machine equipped with a mold for optical disk substrates according to the present invention,
FIG. 2 is an explanatory cross-sectional view showing essential parts of the mold shown in FIG. 1, and FIG. 3 is a cross-sectional view showing an optical disk substrate molded using the mold shown in FIG. 1. 4 and 5 are diagrams for explaining the relative positional relationship between the movable mold and the fixed mold at different injection operation stages when injection molding an optical disk substrate using the mold shown in FIG. 1, respectively. FIG. 3 is a sectional view corresponding to FIG. 2; FIG. 6 is a sectional view showing a main part of an optical disk substrate product manufactured by laminating the optical disk substrates shown in FIG. 3. FIG. FIG. 7 is a diagram corresponding to FIG. 2 showing a conventional molding die for an optical disk substrate, and FIG. 8 is a diagram corresponding to FIG. 3 showing an optical disk substrate molded using the conventional molding die. FIG. 9 is a cross-sectional view of a main part showing the laminated body of the optical disk base of FIG. 8. 20: Optical disk base mold, 24: Fixed mold, 28: Movable mold, 30: Product cavity, 3
4: Movable mirror block, 36: Fixed mirror block, 38: Stamper holding ring, 40: Stamper surface, 42: Stamper, 46: Fixed ring, 48
: Elastic member (biasing means), 50: Bolt (stopper means), 57: Injection material, 62: Projection, 64:
Inner peripheral surface (definition surface), 66: Optical disk base, 68
: outer peripheral surface, 70: information recording surface, 72: flat surface.
Claims (1)
けられ且つ所定のスタンパがセツトされた可動金
型とを含み、それら金型にて形成される製品キヤ
ビテイ内への所定の射出材料の射出により、該ス
タンパ面の情報が転写された光デイスク基盤を成
形するようにした光デイスク基盤用成形型におい
て、 前記可動金型側に取り付けられて前記スタンパ
の外周縁部を押さえるスタンパ押えリングと、 該スタンパ押えリングの内側に位置して前記製
品キヤビテイの外周面を規定する突部を有し、且
つ該突部の外周面規定面が前記固定金型側から前
記可動金型側に向かつて外方に拡がるテーパ面と
して形成された、該固定金型側に取り付けられる
固定リングと、 該固定リングを前記可動金型側に向かつて突き
出すように付勢する付勢手段と、 該付勢手段の付勢力によつて、前記固定リング
が前記可動金型側に向かつて所定量だけ自由に突
き出され得るように、該固定リングの突出し量を
規制するストツパ手段とを、 設けたことを特徴とする光デイスク基盤用成形
型。[Claims for Utility Model Registration] Includes a fixed mold and a movable mold that can be approached and separated from the fixed mold and in which a predetermined stamper is set, and into the product cavity formed by these molds. In a mold for an optical disk base, which molds an optical disk base onto which information on the stamper surface is transferred by injecting a predetermined injection material, the outer peripheral edge of the stamper is attached to the movable mold side. a stamper holding ring that presses the stamper, and a protrusion that is located inside the stamper holding ring and defines an outer circumferential surface of the product cavity, and an outer circumferential defining surface of the protrusion is configured to press the movable part from the fixed mold side. a fixed ring attached to the fixed mold side and formed as a tapered surface expanding outward toward the mold side; and a biasing means for urging the fixed ring to protrude toward the movable mold side. and a stopper means for regulating the amount of protrusion of the fixed ring so that the fixed ring can be freely protruded by a predetermined amount toward the movable mold side by the urging force of the urging means. A mold for an optical disk substrate, characterized by the following:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16970385U JPH023860Y2 (en) | 1985-11-02 | 1985-11-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16970385U JPH023860Y2 (en) | 1985-11-02 | 1985-11-02 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6278415U true JPS6278415U (en) | 1987-05-19 |
| JPH023860Y2 JPH023860Y2 (en) | 1990-01-30 |
Family
ID=31103752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16970385U Expired JPH023860Y2 (en) | 1985-11-02 | 1985-11-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH023860Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03278339A (en) * | 1989-03-31 | 1991-12-10 | Hitachi Maxell Ltd | Production of optical recording medium and transparent substrate for optical recording medium and mold for transparent substrate for optical recording medium |
-
1985
- 1985-11-02 JP JP16970385U patent/JPH023860Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03278339A (en) * | 1989-03-31 | 1991-12-10 | Hitachi Maxell Ltd | Production of optical recording medium and transparent substrate for optical recording medium and mold for transparent substrate for optical recording medium |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH023860Y2 (en) | 1990-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6278415U (en) | ||
| JPS5926244U (en) | Molding equipment for semiconductor resin encapsulation molding | |
| JPH042027Y2 (en) | ||
| JPH10337746A (en) | Mold for molding disc | |
| JPH0612904Y2 (en) | Mold | |
| JPH04518U (en) | ||
| JPS6049568B2 (en) | Manufacturing method of plastic container lid with embedded circular metal top plate | |
| JPH0422214U (en) | ||
| JPS62185022U (en) | ||
| JPH081845Y2 (en) | Mold for cassette case molding | |
| JPS6351714U (en) | ||
| JPS61105124U (en) | ||
| JPH0422213U (en) | ||
| JPS6233418U (en) | ||
| JPH01146923U (en) | ||
| JPH0234223U (en) | ||
| JPH0460419U (en) | ||
| JPS62194023U (en) | ||
| JPH0469117U (en) | ||
| JPH01156020U (en) | ||
| JPH0460414U (en) | ||
| JPS644613U (en) | ||
| JPS6064813U (en) | tire vulcanizer | |
| JPS6267719U (en) | ||
| JPH01122921U (en) |