JPS5678956A - Preparation of wheel made of high molecular material having high central portion around ground engaging surface - Google Patents

Preparation of wheel made of high molecular material having high central portion around ground engaging surface

Info

Publication number
JPS5678956A
JPS5678956A JP15592279A JP15592279A JPS5678956A JP S5678956 A JPS5678956 A JP S5678956A JP 15592279 A JP15592279 A JP 15592279A JP 15592279 A JP15592279 A JP 15592279A JP S5678956 A JPS5678956 A JP S5678956A
Authority
JP
Japan
Prior art keywords
wheel
metal mold
resin
barrel
taken out
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
JP15592279A
Other languages
Japanese (ja)
Other versions
JPS5812145B2 (en
Inventor
Yasuyuki Yokoyama
Yasuo Tanaka
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.)
SHINWA KASEI KK
Iwatani Corp
Original Assignee
SHINWA KASEI KK
Iwatani 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 SHINWA KASEI KK, Iwatani Corp filed Critical SHINWA KASEI KK
Priority to JP54155922A priority Critical patent/JPS5812145B2/en
Publication of JPS5678956A publication Critical patent/JPS5678956A/en
Publication of JPS5812145B2 publication Critical patent/JPS5812145B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Casters (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

PURPOSE: To obtain a barrel like castor wheel having no molding burrs in a central large diameter portion thereof by a method wherein a split surface of a metal mold is positioned in the vicinity of an end portion of the wheel to be molded as well as, by utilizing the heat shrinkability of a resin, a molded product is taken out from the metal mold.
CONSTITUTION: In a method for producing the castor wheel having a central portion having a diameter larger than that of both ends thereof, for example, a barrel like shape, the split surface 6 formed by a movable side metal mold 1 consisted of a core bush 1a, a core plate 1b and a metal mold mounting plate 1c and a fixed side metal mold 2 is arranged in the vicinity of an end portion of the barrel like wheel to be molded and a resin is injected into a wheel molding chamber 3 of the metal mold and, after said resin is cooled, the metal molds 1, 2 are opened and the molded product is taken out by using a protruded pin 19. Because the resin has solidification shrinkability, heat shrinkability and elastic shrink deformability, the molded product is easily taken out from the mold. Because burrs are not formed in a central large diameter portion which is a ground engaging surface, this wheel has good appearance and braking property.
COPYRIGHT: (C)1981,JPO&Japio
JP54155922A 1979-11-30 1979-11-30 Method for manufacturing wheels made of high-polymer material with medium to high ground contact surface Expired JPS5812145B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54155922A JPS5812145B2 (en) 1979-11-30 1979-11-30 Method for manufacturing wheels made of high-polymer material with medium to high ground contact surface

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54155922A JPS5812145B2 (en) 1979-11-30 1979-11-30 Method for manufacturing wheels made of high-polymer material with medium to high ground contact surface

Publications (2)

Publication Number Publication Date
JPS5678956A true JPS5678956A (en) 1981-06-29
JPS5812145B2 JPS5812145B2 (en) 1983-03-07

Family

ID=15616435

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54155922A Expired JPS5812145B2 (en) 1979-11-30 1979-11-30 Method for manufacturing wheels made of high-polymer material with medium to high ground contact surface

Country Status (1)

Country Link
JP (1) JPS5812145B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63307919A (en) * 1987-06-10 1988-12-15 Polyplastics Co Molding method for tape reel

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6322345A (en) * 1986-07-08 1988-01-29 東洋製罐株式会社 Three piece can and manufacture thereof
JP7103821B2 (en) 2018-03-30 2022-07-20 本田技研工業株式会社 Coil for rotary electric machine and rotary electric machine equipped with this

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015776A (en) * 1973-06-14 1975-02-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5015776A (en) * 1973-06-14 1975-02-19

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63307919A (en) * 1987-06-10 1988-12-15 Polyplastics Co Molding method for tape reel
JPH0510210B2 (en) * 1987-06-10 1993-02-09 Polyplastics Kk

Also Published As

Publication number Publication date
JPS5812145B2 (en) 1983-03-07

Similar Documents

Publication Publication Date Title
JPS5630841A (en) Plastic molding method and metallic mold therefor
EP0353748A3 (en) A process for preparing blazed holograms
MXPA02010360A (en) Method of molding a panel.
CA2184945A1 (en) Method and apparatus for molding composite articles
JPS5678956A (en) Preparation of wheel made of high molecular material having high central portion around ground engaging surface
JPS5762857A (en) Production of nozzle for casting having slit
JPS5565531A (en) Molding of handle for toothbrush or the like and metallic mold therefor
JPS5686730A (en) Method and device for preparation of molded article
JPS57195683A (en) Manufacture of molded product having pattern on its surface
CA2155358A1 (en) Injection Mould and Method for Injection Moulding an Article
Kudo et al. Method of and Apparatus for Producing Disc Substrate
DE3264704D1 (en) Inclined insulated runner multicavity plastic injection molding
JPS5610438A (en) Forming mold
JPS5787934A (en) Manufacture of high-molecular material-made wheel having grease storage part at middle part of axle insertion hole
JPS57205120A (en) Molding of aspherical lens
JPS56151543A (en) Molding of synthetic resin
JPH0380606B2 (en)
JPS55160602A (en) Wheel cover for car
JPS56101837A (en) Injection molding method for product
JPS55118846A (en) Molding method of molded article having nonuniformly distributed holes
JPS5664833A (en) Metal mold
JPS56164832A (en) Production of synthetic resin made penpoint
JPS55107440A (en) Molding method for plastic resin material
JPS57150547A (en) Method and apparatus for manufacturing slender and long product
JPS578509A (en) Lens barrel