JPH01132721U - - Google Patents
Info
- Publication number
- JPH01132721U JPH01132721U JP2612388U JP2612388U JPH01132721U JP H01132721 U JPH01132721 U JP H01132721U JP 2612388 U JP2612388 U JP 2612388U JP 2612388 U JP2612388 U JP 2612388U JP H01132721 U JPH01132721 U JP H01132721U
- Authority
- JP
- Japan
- Prior art keywords
- template
- forming
- cavity
- chamfer
- rings
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/263—Moulds with mould wall parts provided with fine grooves or impressions, e.g. for record discs
- B29C2045/2648—Outer peripheral ring constructions
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacturing Optical Record Carriers (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2612388U JPH0521390Y2 (fr) | 1988-02-29 | 1988-02-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2612388U JPH0521390Y2 (fr) | 1988-02-29 | 1988-02-29 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01132721U true JPH01132721U (fr) | 1989-09-08 |
| JPH0521390Y2 JPH0521390Y2 (fr) | 1993-06-01 |
Family
ID=31247467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2612388U Expired - Lifetime JPH0521390Y2 (fr) | 1988-02-29 | 1988-02-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521390Y2 (fr) |
-
1988
- 1988-02-29 JP JP2612388U patent/JPH0521390Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0521390Y2 (fr) | 1993-06-01 |