JPS55109640A - Manufacturing cap with clip of synthetic resin - Google Patents

Manufacturing cap with clip of synthetic resin

Info

Publication number
JPS55109640A
JPS55109640A JP1744479A JP1744479A JPS55109640A JP S55109640 A JPS55109640 A JP S55109640A JP 1744479 A JP1744479 A JP 1744479A JP 1744479 A JP1744479 A JP 1744479A JP S55109640 A JPS55109640 A JP S55109640A
Authority
JP
Japan
Prior art keywords
clip
cap
chip
molds
synthetic resin
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
Application number
JP1744479A
Other languages
Japanese (ja)
Other versions
JPS616770B2 (en
Inventor
Naoharu Unno
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.)
Pentel Co Ltd
Original Assignee
Pentel Co 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 Pentel Co Ltd filed Critical Pentel Co Ltd
Priority to JP1744479A priority Critical patent/JPS55109640A/en
Publication of JPS55109640A publication Critical patent/JPS55109640A/en
Publication of JPS616770B2 publication Critical patent/JPS616770B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To easily manufacture a cap having a clip in pressure contact therewith, without causing a trouble such as the damage at metal molds, by injection-molding the cap with the clip and thereafter heating the inside of the clip to curve it inward.
CONSTITUTION: Polypropylene heated at 220°C is injected into molds 3 which are not provided with recesses 3d, 3e as shown in Fig. After the polypropylene is left in the molds for ten seconds, it is picked out. As a result, a gap of 0.82W0.87mm is defined between the tip of a chip 4b and the body 4a of a cap 4. A rod 6 heated at 100°C is inserted into the gap 5 between the body 4a and the chip 4b to heat them for twenty seconds. The cap is thereafter spontaneously cooled. As a result, the chip 4b is curved toward the body 4a and the tip of the chip 4b is brought into pressure contact with the body 4a.
COPYRIGHT: (C)1980,JPO&Japio
JP1744479A 1979-02-16 1979-02-16 Manufacturing cap with clip of synthetic resin Granted JPS55109640A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1744479A JPS55109640A (en) 1979-02-16 1979-02-16 Manufacturing cap with clip of synthetic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1744479A JPS55109640A (en) 1979-02-16 1979-02-16 Manufacturing cap with clip of synthetic resin

Publications (2)

Publication Number Publication Date
JPS55109640A true JPS55109640A (en) 1980-08-23
JPS616770B2 JPS616770B2 (en) 1986-02-28

Family

ID=11944189

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1744479A Granted JPS55109640A (en) 1979-02-16 1979-02-16 Manufacturing cap with clip of synthetic resin

Country Status (1)

Country Link
JP (1) JPS55109640A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698714A (en) * 1984-04-28 1987-10-06 Sony Corporation Flexible magnetic disc cassette

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4698714A (en) * 1984-04-28 1987-10-06 Sony Corporation Flexible magnetic disc cassette

Also Published As

Publication number Publication date
JPS616770B2 (en) 1986-02-28

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