JPS55111219A - Molding of plastic pipe faucet - Google Patents
Molding of plastic pipe faucetInfo
- Publication number
- JPS55111219A JPS55111219A JP1933779A JP1933779A JPS55111219A JP S55111219 A JPS55111219 A JP S55111219A JP 1933779 A JP1933779 A JP 1933779A JP 1933779 A JP1933779 A JP 1933779A JP S55111219 A JPS55111219 A JP S55111219A
- Authority
- JP
- Japan
- Prior art keywords
- plastic pipe
- step section
- inclined step
- diameter inclined
- faucet
- 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
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
PURPOSE: To secure the rubber ring sealing property of the faucet by compression molding of the portion of a plastic pipe at the lower part of the second enlarged diameter inclined step section thereof with an outer die.
CONSTITUTION: In the molding of a faucet at the end of a plastic pipe P0, a padded end is heated and inserted onto the core 1. At this point, the circumferential tension is so relatively low at the portion of the plastic pipe on the low part b0 of the second larger-diameter inclined step section b as to develop a clearance g. The increase rate of the cross-sectional area becomes larger on the second larger diameter inclined step section b because of a larger axial compression force working on the plastic pipe at the position. Therefore, a slight extra thickness is required locally on the second enlarged diameter inclined step section b. Then, an outer die is used to squeeze the clearance on the lower part b0 of the second enlarged diameter inclined step section b. This compression helps the inner surface of the rubber ring mounting groove of the faucet to be molded on the outer surface of the core at a given accuracy. The outer die 2 is usually made of rubber.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1933779A JPS55111219A (en) | 1979-02-20 | 1979-02-20 | Molding of plastic pipe faucet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1933779A JPS55111219A (en) | 1979-02-20 | 1979-02-20 | Molding of plastic pipe faucet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55111219A true JPS55111219A (en) | 1980-08-27 |
Family
ID=11996581
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1933779A Pending JPS55111219A (en) | 1979-02-20 | 1979-02-20 | Molding of plastic pipe faucet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55111219A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS535274A (en) * | 1976-07-03 | 1978-01-18 | Kubota Ltd | Process for reforming pipe ends by cooling |
JPS53136076A (en) * | 1977-05-02 | 1978-11-28 | Kubota Ltd | Fabrication of synthetic resin pipe |
-
1979
- 1979-02-20 JP JP1933779A patent/JPS55111219A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS535274A (en) * | 1976-07-03 | 1978-01-18 | Kubota Ltd | Process for reforming pipe ends by cooling |
JPS53136076A (en) * | 1977-05-02 | 1978-11-28 | Kubota Ltd | Fabrication of synthetic resin pipe |
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