JPS55111219A - Molding of plastic pipe faucet - Google Patents

Molding of plastic pipe faucet

Info

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
Application number
JP1933779A
Other languages
Japanese (ja)
Inventor
Junsuke Kyomen
Masayuki Sakaguchi
Yoshiaki Hara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kubota Corp
Original Assignee
Kubota Corp
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 by Kubota Corp filed Critical Kubota Corp
Priority to JP1933779A priority Critical patent/JPS55111219A/en
Publication of JPS55111219A publication Critical patent/JPS55111219A/en
Pending legal-status Critical Current

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
JP1933779A 1979-02-20 1979-02-20 Molding of plastic pipe faucet Pending JPS55111219A (en)

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)

* Cited by examiner, † Cited by third party
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

Patent Citations (2)

* Cited by examiner, † Cited by third party
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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