JPS55130740A - Metallic mold for producing knob - Google Patents

Metallic mold for producing knob

Info

Publication number
JPS55130740A
JPS55130740A JP3875379A JP3875379A JPS55130740A JP S55130740 A JPS55130740 A JP S55130740A JP 3875379 A JP3875379 A JP 3875379A JP 3875379 A JP3875379 A JP 3875379A JP S55130740 A JPS55130740 A JP S55130740A
Authority
JP
Japan
Prior art keywords
projection
metallic mold
knob
grooves
cavity
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
JP3875379A
Other languages
Japanese (ja)
Other versions
JPS591173B2 (en
Inventor
Katsufumi Kanda
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP3875379A priority Critical patent/JPS591173B2/en
Publication of JPS55130740A publication Critical patent/JPS55130740A/en
Publication of JPS591173B2 publication Critical patent/JPS591173B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Details Of Measuring And Other Instruments (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To prevent a convex part equipped on a knob from crushing by a method wherein special concave grooves are provided respectively on the side wall of a projection formed on one metallic mold fitted to the cavity of the other metallic mold and on the side wall of the boss part prepared on the projection.
CONSTITUTION: A projection 8 fitted into a cavity 6 of one metallic mold 5 is equipped on the other metallic mold 7 and grooves 10a, 10b are formed on both side walls of the projection 8 from one side of the projection 8 toward the other one. A boss part 11 is formed on one side of the projection 8 and on its side walls also are formed grooves 12a, 12b which are put in the same direction as the grooves 10a, 10b and greater than them. Resin 9 is cast and hardened between the projection 8 and the inner wall of the cavity 6 and the metallic mold 5 is drawn out toward the left. When the formed knob is pushed by bars 13a, 13b and removed from the projection 8, the resin which has been inserted into the cavities 12a, 12b runs on the side walls of the boss 11, the right ends of the knob open a little in the vertical direction and the resin which is inserted in the smaller grooves 10a, 10b can slip out without being crushed.
COPYRIGHT: (C)1980,JPO&Japio
JP3875379A 1979-03-30 1979-03-30 Mold for manufacturing knobs Expired JPS591173B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3875379A JPS591173B2 (en) 1979-03-30 1979-03-30 Mold for manufacturing knobs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3875379A JPS591173B2 (en) 1979-03-30 1979-03-30 Mold for manufacturing knobs

Publications (2)

Publication Number Publication Date
JPS55130740A true JPS55130740A (en) 1980-10-09
JPS591173B2 JPS591173B2 (en) 1984-01-10

Family

ID=12534047

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3875379A Expired JPS591173B2 (en) 1979-03-30 1979-03-30 Mold for manufacturing knobs

Country Status (1)

Country Link
JP (1) JPS591173B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01122416A (en) * 1987-11-07 1989-05-15 Tougou Seisakusho:Kk Molding method for baggy member with connecting nail

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01122416A (en) * 1987-11-07 1989-05-15 Tougou Seisakusho:Kk Molding method for baggy member with connecting nail
JPH0737029B2 (en) * 1987-11-07 1995-04-26 株式会社東郷製作所 Method for forming bag-shaped member with locking claw

Also Published As

Publication number Publication date
JPS591173B2 (en) 1984-01-10

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