Invention Application
- Patent Title: PNEUMATIC TYRE AND MANUFACTURING METHOD THEREFOR
-
Application No.: US15631507Application Date: 2017-06-23
-
Publication No.: US20170282473A1Publication Date: 2017-10-05
- Inventor: Naoki SUGIYAMA , Tomoharu TORII
- Applicant: SUMITOMO RUBBER INDUSTRIES, LTD.
- Applicant Address: JP Kobe-shi
- Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee: SUMITOMO RUBBER INDUSTRIES, LTD.
- Current Assignee Address: JP Kobe-shi
- Priority: JP2011-274779 20111215
- Main IPC: B29D30/48
- IPC: B29D30/48 ; B60C15/04 ; B60C15/00 ; B29D30/16

Abstract:
The present invention has an object of providing a pneumatic tire that exhibits better uniformity by improving the wire wound body for constituting the bead core. The pneumatic tire 1 comprises a bead core 5 comprising a wire wound body 10 in which one bead wire 10a is spirally wound in a continuous around a tire rotational axis CL so that a plurality of layers of the bead wire are formed in a radial direction of the tire. The wire wound body 10 comprises a first part 13 and a second part 14. The first part 13 comprises a plurality of layers of the bead wire 10a each circumferentially extending with a constant radius from the tire rotational axis CL. The second part comprises a plurality of layers of the bead wire 10a each circumferentially extending while changing its radius from the tire rotational axis CL.
Public/Granted literature
- US10894376B2 Pneumatic tire and manufacturing method therefor Public/Granted day:2021-01-19
Information query