Tire tube manufacturing apparatus
AssigneeHonda Giken Kogyo Kabushiki Kaisha
InventorToshio Yamagiwa
Life of this patent
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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.
Claims3
A tire tube manufacturing apparatus for extrusion-molding a tire tube, an inside of a peripheral wall of the tire tube having an approximately circular cross-section partitioned by a partition wall into an outer peripheral side sealant chamber and an inner peripheral side air chamber, said tire tube manufacturing apparatus comprising:
- a nozzle plane having a peripheral wall forming gap for extruding a peripheral wall portion of the tire tube material, and a partition wall forming gap for extruding a partition wall portion of the tire tube material;
- a first surface lubricant delivery port opened in said nozzle plane into said outer peripheral side sealant chamber;
- a second surface lubricant delivery port opened in said nozzle plane into said inner peripheral side air chamber;
- a first pump for independently supplying surface lubricant under pressure into said first surface lubricant delivery port;
- and
- a second pump for independently supplying surface lubricant under pressure into said second surface lubricant delivery port.
Dependencies are inferred from the claim text.