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US 6,866,735 B2Granted
Method of manufacturing a tire tube
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorToshio Yamagiwa
Life of this patent
Estimating the term…
Abstract
To provide a tire tube having excellent sealing performance and durability. An inside of a tire includes a peripheral wall having an approximately circular cross-section which is partitioned by a partition wall into an outer peripheral side sealant chamber and an inner peripheral side air chamber. The sealant chamber is filled with a sealant having a thickness in the diameter direction in a range of 0.5 to 1.5 mm.
Claims11
A method of making a tire tube comprising the steps of:
- forming a peripheral wall having an approximately circular cross-section;
- forming a partition wall for partitioning an inside of the peripheral wall into an outer peripheral side sealant chamber and an inner peripheral side air chamber;
- determining an ideal thickness of sealant in the sealant chamber by considering the durability and sealing performance of the tire tube at various thicknesses of the sealant, the durability of the tire tube being a runnable distance of 10,000 km or more and the sealing performance being a maximum diameter of a blocked hole of 6 mm or more;
- and
- filling the sealant chamber with an amount of sealant equal to the determined ideal thickness of the sealant, the ideal thickness of the sealant being a thickness that provides a runnable distance of 10,000 km or more and a maximum diameter of a blocked hole of 6 mm or more.
2 more elements
A method of making a tire tube comprising the steps of:
- extruding a peripheral wall having an approximately circular cross-section;
- extruding a partition wall for partitioning an inside of the peripheral wall into an outer peripheral side sealant chamber and an inner peripheral side air chamber;
- providing a first pump for delivering a first surface lubricant through a first port in an extrusion nozzle and into the outer peripheral side sealant chamber;
- providing a second pump for delivering a second surface lubricant through a second port in an extrusion nozzle and into the inner peripheral side air chamber independently of the delivering of the first surface lubricant;
- determining an ideal thickness of sealant in the sealant chamber by considering the durability and sealing performance of the tire tube at various thicknesses of the sealant, the durability of the tire tube being a runnable distance of 10,000 km or more and the sealing performance being a maximum diameter of a blocked hole of 6 mm or more;
- and
- filling the sealant chamber with an amount of sealant equal to the determined ideal thickness of the sealant, the ideal thickness of the sealant being a thickness that provides a runnable distance of 10,000 km or more and a maximum diameter of a blocked hole of 6 mm or more.
4 more elements
A method of making a tire tube comprising the steps of:
- extruding a peripheral wall having an approximately circular cross-section;
- extruding a partition wall for partitioning an inside of the peripheral wall into an outer peripheral side sealant chamber and an inner peripheral side air chamber;
- providing a first pump for delivering a first surface lubricant through a first port in an extrusion nozzle and into the outer peripheral side sealant chamber;
- providing a second pump for delivering a second surface lubricant through a second port in the extrusion nozzle and into the inner peripheral side air chamber independently of the delivering of the first surface lubricant.
1 more element
Dependencies are inferred from the claim text.