IT1024456B - Pneumatic tyre has bead with reinforcing ring - to the periphery of which a rubber annulus is fixed before attaching to tyre carcass - Google Patents

Pneumatic tyre has bead with reinforcing ring - to the periphery of which a rubber annulus is fixed before attaching to tyre carcass

Info

Publication number
IT1024456B
IT1024456B IT5454574A IT5454574A IT1024456B IT 1024456 B IT1024456 B IT 1024456B IT 5454574 A IT5454574 A IT 5454574A IT 5454574 A IT5454574 A IT 5454574A IT 1024456 B IT1024456 B IT 1024456B
Authority
IT
Italy
Prior art keywords
annulus
ring
periphery
tyre
bead
Prior art date
Application number
IT5454574A
Other languages
Italian (it)
Original Assignee
Bridgestone Tire Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Tire Co Ltd filed Critical Bridgestone Tire Co Ltd
Priority to IT5454574A priority Critical patent/IT1024456B/en
Application granted granted Critical
Publication of IT1024456B publication Critical patent/IT1024456B/en

Links

Landscapes

  • Tyre Moulding (AREA)

Abstract

A metal ring for reinforcing the bead of a pneumatic tyre is mounted on a circular support whose diameter is variable and an elastic annulus is supported in a generally cylindrical shape on a transfer element which can be moved to position the annulus against an annular support so that the annulus takes up a truly annular shape around the periphery of the ring. The face of annular support against which the annulus rests is inclined and the annulus is moved off this face so that it resiliently locates (and becomes fixed) around the periphery of the ring. When the ring is attached to the tyre carcass reinforcing plies are folded around the ring and the annulus separates the folded over ends of the plies form the main region of the plies. Previous manual operations are automated thereby increasing production speeds.
IT5454574A 1974-12-13 1974-12-13 Pneumatic tyre has bead with reinforcing ring - to the periphery of which a rubber annulus is fixed before attaching to tyre carcass IT1024456B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT5454574A IT1024456B (en) 1974-12-13 1974-12-13 Pneumatic tyre has bead with reinforcing ring - to the periphery of which a rubber annulus is fixed before attaching to tyre carcass

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5454574A IT1024456B (en) 1974-12-13 1974-12-13 Pneumatic tyre has bead with reinforcing ring - to the periphery of which a rubber annulus is fixed before attaching to tyre carcass

Publications (1)

Publication Number Publication Date
IT1024456B true IT1024456B (en) 1978-06-20

Family

ID=11287384

Family Applications (1)

Application Number Title Priority Date Filing Date
IT5454574A IT1024456B (en) 1974-12-13 1974-12-13 Pneumatic tyre has bead with reinforcing ring - to the periphery of which a rubber annulus is fixed before attaching to tyre carcass

Country Status (1)

Country Link
IT (1) IT1024456B (en)

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