JPS56142049A - Forming mold for tread part of caster wheel - Google Patents

Forming mold for tread part of caster wheel

Info

Publication number
JPS56142049A
JPS56142049A JP4520280A JP4520280A JPS56142049A JP S56142049 A JPS56142049 A JP S56142049A JP 4520280 A JP4520280 A JP 4520280A JP 4520280 A JP4520280 A JP 4520280A JP S56142049 A JPS56142049 A JP S56142049A
Authority
JP
Japan
Prior art keywords
rubber
mold
concave groove
tread part
rim
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
JP4520280A
Other languages
Japanese (ja)
Other versions
JPS5757267B2 (en
Inventor
Hayashi Uchimura
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP4520280A priority Critical patent/JPS56142049A/en
Publication of JPS56142049A publication Critical patent/JPS56142049A/en
Publication of JPS5757267B2 publication Critical patent/JPS5757267B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Casters (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Tyre Moulding (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

PURPOSE: To arrange so that the outflow of a molten rubber may be prevented to increase a forming pressure and a tread part providing a strong bonding strength with a rim be formed, by providing one set of a concave groove and a convex strip which fit to each other, on an external periphery of each annular inflow concave groove.
CONSTITUTION: After a wheel 31 is deposited on a lower mold 2, a solid rubber material is placed in an inflow groove 3 of the lower mold 2 from the inside and a soft rubber material outside of the former. Then an upper mold 1 is lowered from above to match the molds. At that time, a residual material rubber becomes soft sequentially on the way of descending of the upper mold 1 and flows out. However, when a fitting convex strip 5 begins to fit inside a fitting concave groove 6, a softening rubber pressure inside the mold mounts. Following this process, simultaneous with the joining of the upper and lower molds 1, 2, the overflow into the outside of the rubber is interrupted and the softening rubber flows into even a complicated shape part such as a hole 35 of a rim 33. Thus a tread part 39 is formed leaving no void inside.
COPYRIGHT: (C)1981,JPO&Japio
JP4520280A 1980-04-08 1980-04-08 Forming mold for tread part of caster wheel Granted JPS56142049A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4520280A JPS56142049A (en) 1980-04-08 1980-04-08 Forming mold for tread part of caster wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4520280A JPS56142049A (en) 1980-04-08 1980-04-08 Forming mold for tread part of caster wheel

Publications (2)

Publication Number Publication Date
JPS56142049A true JPS56142049A (en) 1981-11-06
JPS5757267B2 JPS5757267B2 (en) 1982-12-03

Family

ID=12712673

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4520280A Granted JPS56142049A (en) 1980-04-08 1980-04-08 Forming mold for tread part of caster wheel

Country Status (1)

Country Link
JP (1) JPS56142049A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH051504U (en) * 1991-06-28 1993-01-14 株式会社石川製作所 Caster wheels
JP2006219022A (en) * 2005-02-10 2006-08-24 Nippon Rubber Kagaku Kk Elastic conductive wheel and its manufacturing method
WO2014106908A1 (en) * 2013-01-07 2014-07-10 株式会社ゼロワンデザイン Wheel for bag

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5928669U (en) * 1982-08-19 1984-02-22 トヨタ自動車株式会社 Internal combustion engine fuel injection system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035111U (en) * 1973-07-25 1975-04-14

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5035111U (en) * 1973-07-25 1975-04-14

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH051504U (en) * 1991-06-28 1993-01-14 株式会社石川製作所 Caster wheels
JP2006219022A (en) * 2005-02-10 2006-08-24 Nippon Rubber Kagaku Kk Elastic conductive wheel and its manufacturing method
WO2014106908A1 (en) * 2013-01-07 2014-07-10 株式会社ゼロワンデザイン Wheel for bag

Also Published As

Publication number Publication date
JPS5757267B2 (en) 1982-12-03

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