JPS5579132A - Tube preformer for tire - Google Patents
Tube preformer for tireInfo
- Publication number
- JPS5579132A JPS5579132A JP15440578A JP15440578A JPS5579132A JP S5579132 A JPS5579132 A JP S5579132A JP 15440578 A JP15440578 A JP 15440578A JP 15440578 A JP15440578 A JP 15440578A JP S5579132 A JPS5579132 A JP S5579132A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- segments
- air
- center
- preformer
- 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
Links
- 238000002347 injection Methods 0.000 abstract 1
- 239000007924 injection Substances 0.000 abstract 1
- 238000004073 vulcanization Methods 0.000 abstract 1
Landscapes
- Tyre Moulding (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To obtain a tire tube free from deformation by dividing the preformer body into a plurality of small segments displaceable to its center.
CONSTITUTION: An air injection valve of the tube 28 is mounted to a preform body 2 having segments 17a, 17b, 18a and 18b displaced to the center with a segment drive gear in such a manner as to be positioned at the notch A. Then, the drive gear is reversed to return the segments 17a, 17b, 18a and 18b to the ring in the arrangement and air is injected into the tube 28 from an air feed tube 41 until the given outer diameter is reached. At the same time the body 2 is turned with a motor 12 and set into a lower mold of a vulcanizer. Then, the rotation of the body 2 is halted and the segments 17a, 17b, 18a and 18b are shifted to the center to reduce the outer shape. Simultaneously with the removal of the feed pipe 14, a stuff is put into the valve of the tube 28. Then, the tube sealed with air is removed and the upper mold is closed for vulcanization.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15440578A JPS5579132A (en) | 1978-12-13 | 1978-12-13 | Tube preformer for tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15440578A JPS5579132A (en) | 1978-12-13 | 1978-12-13 | Tube preformer for tire |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5579132A true JPS5579132A (en) | 1980-06-14 |
JPS5622698B2 JPS5622698B2 (en) | 1981-05-27 |
Family
ID=15583421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15440578A Granted JPS5579132A (en) | 1978-12-13 | 1978-12-13 | Tube preformer for tire |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5579132A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2347637A1 (en) * | 1998-10-22 | 2000-04-27 | Toshio Matsuzawa | Explosive composition for fireworks and method for manufacturing the same |
-
1978
- 1978-12-13 JP JP15440578A patent/JPS5579132A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5622698B2 (en) | 1981-05-27 |
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