Apparatus for tread belt assembly
US7384499B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | Mar 13, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/202
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of building and transferring a tread 12 or a tread belt reinforcing assembly 14 on a building drum 10 is disclosed. The steps include applying at least one uncured tread component 12, 14 onto a radially collapsible building drum 10, inserting the at least one uncured tread component 12 and the radially collapsible building drum 10 into an open segmented mold 2 wherein a plurality of mold tread forming segments 4 are radially expanded; contracting the plurality of mold tread forming segments 4 pressing into the at least one uncured tread component 12, 14; collapsing the building drum 10; and removing the building drum 10 thereby transferring the at least one uncured tread component 12, 14 into the mold. The preferred building drum apparatus 10 has a portable radially expandable and axially rotatable support means 20; a drive means 30 for rotating the support means 20 about the axis, a plurality of arcuate or straight segments 22 slidably mounted over the support means, the plurality of arcuate or straight segments 22 forming an annular building surface 24; a means 40 for radially expanding and contracting the radially expandable and axially rotatable support means; a means …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.