JPS5582981A - Case for portable watch - Google Patents

Case for portable watch

Info

Publication number
JPS5582981A
JPS5582981A JP15831578A JP15831578A JPS5582981A JP S5582981 A JPS5582981 A JP S5582981A JP 15831578 A JP15831578 A JP 15831578A JP 15831578 A JP15831578 A JP 15831578A JP S5582981 A JPS5582981 A JP S5582981A
Authority
JP
Japan
Prior art keywords
outer shell
portable watch
injection molding
watch
water
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
JP15831578A
Other languages
Japanese (ja)
Inventor
Masayoshi Aoki
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments and Electronics Ltd
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 Seiko Instruments and Electronics Ltd filed Critical Seiko Instruments and Electronics Ltd
Priority to JP15831578A priority Critical patent/JPS5582981A/en
Publication of JPS5582981A publication Critical patent/JPS5582981A/en
Pending legal-status Critical Current

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Abstract

PURPOSE: To miniaturize the portable watch with a higher strength preventing infiltration of water by forming an outer shell of the portable watch case with a thin plate and pouring a metal meltable at a lower temperature than the outer shell thereinside for injection molding.
CONSTITUTION: An outer shell 1 0.05W1.0mm thick is formed with a stainless steel or the like by press forming. The outer shell thus formed is inserted into a mold loaded in an injection molding machine and then, metal such as brass, German silver, aluminium and zinc lower in the melting point is poured into the outer shell as melted to form an inner shell 2 integral with the outer shell 1. This can prevents the infiltration of water and improve the strength thereby miniaturizing the watch.
COPYRIGHT: (C)1980,JPO&Japio
JP15831578A 1978-12-19 1978-12-19 Case for portable watch Pending JPS5582981A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15831578A JPS5582981A (en) 1978-12-19 1978-12-19 Case for portable watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15831578A JPS5582981A (en) 1978-12-19 1978-12-19 Case for portable watch

Publications (1)

Publication Number Publication Date
JPS5582981A true JPS5582981A (en) 1980-06-23

Family

ID=15668940

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15831578A Pending JPS5582981A (en) 1978-12-19 1978-12-19 Case for portable watch

Country Status (1)

Country Link
JP (1) JPS5582981A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741873A (en) * 1980-08-26 1982-03-09 Hideyuki Ito Molding method of watch case

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH351545A (en) * 1958-01-03 1961-01-15 Emir S A Manufacturing process of a watch case part
CH352964A (en) * 1958-03-11 1961-03-15 Emir S A Process for manufacturing a watch case middle and middle part obtained by this process

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH351545A (en) * 1958-01-03 1961-01-15 Emir S A Manufacturing process of a watch case part
CH352964A (en) * 1958-03-11 1961-03-15 Emir S A Process for manufacturing a watch case middle and middle part obtained by this process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5741873A (en) * 1980-08-26 1982-03-09 Hideyuki Ito Molding method of watch case

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