JPS56161141A - Forming method for tire and forming drum - Google Patents
Forming method for tire and forming drumInfo
- Publication number
- JPS56161141A JPS56161141A JP6470380A JP6470380A JPS56161141A JP S56161141 A JPS56161141 A JP S56161141A JP 6470380 A JP6470380 A JP 6470380A JP 6470380 A JP6470380 A JP 6470380A JP S56161141 A JPS56161141 A JP S56161141A
- Authority
- JP
- Japan
- Prior art keywords
- tire
- bead section
- expanded
- diameter
- crude
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000011324 bead Substances 0.000 abstract 4
- 239000012530 fluid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
Landscapes
- Tyre Moulding (AREA)
Abstract
PURPOSE: To manufacture a tire having excellent uniformity efficiently by a method wherein a diameter of split rims is expanded, a bead section of a crude tire is pushed and held positively and the concentric relationship of the crude tire and a secondary forming drum is kept right.
CONSTITUTION: A crude tire G is inserted into a secondary forming drum, a fluid is sent into a cylinders 20, 20', pistons 21, 21' are moved to the inside in the axial direction, brackets 23, 23' are displaced to full line sections from dotted line sections by the movement and a diameter of a pair of split rims 25, 25' is expanded, and a bead section of the crude tire G is pushed and held positively among said split rims 25, 25' and annular bodies 29, 29'. Thereafter, the bead section is secondarily formed in a toroidal shape according to a normal method. Since the bead section is held positively among the annular bodies 29 and the split rims 25, the diameter thereof is expanded, the length of an inner circumference does not change in the secondary forming tire, and a tire having high uniformity can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6470380A JPS56161141A (en) | 1980-05-15 | 1980-05-15 | Forming method for tire and forming drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6470380A JPS56161141A (en) | 1980-05-15 | 1980-05-15 | Forming method for tire and forming drum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56161141A true JPS56161141A (en) | 1981-12-11 |
Family
ID=13265761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6470380A Pending JPS56161141A (en) | 1980-05-15 | 1980-05-15 | Forming method for tire and forming drum |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56161141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140338818A1 (en) * | 2013-05-20 | 2014-11-20 | Sumitomo Rubber Industries, Ltd. | Method for manufacturing motorcycle tire |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842079A (en) * | 1971-09-24 | 1973-06-19 | ||
| JPS4881977A (en) * | 1972-01-14 | 1973-11-01 | ||
| JPS4978780A (en) * | 1972-12-02 | 1974-07-30 |
-
1980
- 1980-05-15 JP JP6470380A patent/JPS56161141A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4842079A (en) * | 1971-09-24 | 1973-06-19 | ||
| JPS4881977A (en) * | 1972-01-14 | 1973-11-01 | ||
| JPS4978780A (en) * | 1972-12-02 | 1974-07-30 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20140338818A1 (en) * | 2013-05-20 | 2014-11-20 | Sumitomo Rubber Industries, Ltd. | Method for manufacturing motorcycle tire |
| US9962891B2 (en) * | 2013-05-20 | 2018-05-08 | Sumitomo Rubber Industries, Ltd. | Method for manufacturing motorcycle tire |
| US11001022B2 (en) | 2013-05-20 | 2021-05-11 | Sumitomo Rubber Industries, Ltd. | Method for manufacturing motorcycle tire |
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