JPH02127413U - - Google Patents
Info
- Publication number
- JPH02127413U JPH02127413U JP3882489U JP3882489U JPH02127413U JP H02127413 U JPH02127413 U JP H02127413U JP 3882489 U JP3882489 U JP 3882489U JP 3882489 U JP3882489 U JP 3882489U JP H02127413 U JPH02127413 U JP H02127413U
- Authority
- JP
- Japan
- Prior art keywords
- gasket
- supports
- outer gasket
- contacts
- fitted
- 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
- 238000005266 casting Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 2
- 239000007924 injection Substances 0.000 claims 2
- 239000000178 monomer Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Description
第１図は、本考案の実施例によるプラスチツク
レンズ注型用ガスケツトの平面図、第２図は第１
図のガスケツトの−線に沿つた縦断面図であ
る。
１……ガスケツト、２……上部ガスケツト、３
……下部ガスケツト、４……モールド上型、５…
…モールド下型、６……キヤビテイ、７，１５…
…上側円環部、８，１６……下側円環部、９……
注入口、１０……注入口外壁、１２……切り欠き
、１３……貫通穴、１４，２０……突起部、１７
……溝、１８……上端面、１９……下端面。
FIG. 1 is a plan view of a gasket for plastic lens casting according to an embodiment of the present invention, and FIG.
FIG. 3 is a longitudinal cross-sectional view of the gasket shown in the figure along the - line. 1...Gasket, 2...Upper gasket, 3
...Lower gasket, 4...Mold upper die, 5...
...Mold lower die, 6...Cavity, 7,15...
...Upper annular part, 8, 16...Lower annular part, 9...
Inlet, 10...Outer wall of inlet, 12...Notch, 13...Through hole, 14, 20...Protrusion, 17
... groove, 18 ... upper end surface, 19 ... lower end surface.
Claims (1)
ガスケツトとからなり、 外側ガスケツトの外側にモノマー注入口が形成
され、この注入口の底部と連通する貫通穴が外側
ガスケツトの壁部に半径方向に形成され、 内側ガスケツトが外側ガスケツトの内周面に密
着嵌挿される円環部を有し、この円環部の外周面
に、上下方向に延びる溝が形成され、外側ガスケ
ツトと内側ガスケツトを互いに嵌合させたときに
、前記溝が外側ガスケツトの壁部に形成された前
記貫通穴と連通し、円環部の上端面がモールド上
型を接触支持し、下端面がモールド下型を接触支
持し、円環部の上側部分が切断可能であることを
特徴とする、プラスチツクレンズ注型用ガスケツ
ト。[Claim for Utility Model Registration] Consisting of a cylindrical outer gasket and an inner gasket that are fitted into each other, a monomer injection port is formed on the outside of the outer gasket, and a through hole that communicates with the bottom of the injection port is the outer gasket. The inner gasket has an annular part formed in the radial direction on the wall of the outer gasket, and the inner gasket is tightly fitted into the inner peripheral surface of the outer gasket. When the gasket and the inner gasket are fitted together, the groove communicates with the through hole formed in the wall of the outer gasket, the upper end surface of the annular portion contacts and supports the upper mold, and the lower end surface contacts and supports the upper mold. A gasket for casting a plastic lens, which contacts and supports a lower mold, and is characterized in that the upper part of the annular part can be cut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3882489U JPH0544104Y2 (en) | 1989-03-31 | 1989-03-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3882489U JPH0544104Y2 (en) | 1989-03-31 | 1989-03-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02127413U true JPH02127413U (en) | 1990-10-19 |
| JPH0544104Y2 JPH0544104Y2 (en) | 1993-11-09 |
Family
ID=31547179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3882489U Expired - Lifetime JPH0544104Y2 (en) | 1989-03-31 | 1989-03-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0544104Y2 (en) |
-
1989
- 1989-03-31 JP JP3882489U patent/JPH0544104Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0544104Y2 (en) | 1993-11-09 |