发明名称 |
TIRE BUILDING MACHINE |
摘要 |
<p>A tire building machine of the expandable bead lock type employs an elastomeric specially shaped radially expanding bead lock including a shaping and turning bladder which includes an air passage system therethrough. The elastomeric bead lock is confined for radial expansion in an annular outwardly opening chamber in the form of an isosceles trapezoid in radial section with the elastomeric bead lock being of similar configuration and expanded by direct application of air pressure within the chamber. The configuration of the annular chamber and the bead lock compensate for stretching of the bead lock upon enlargement. The edges of the bead lock at the axial sides of the chamber are undercut for flexibility while the walls of the chamber are specially costed to maintain the seal. The bead lock incorporates interconnected metallic segment side plates which not only limit the stroke of the moving seal but insure stability axially of the bead and provide the desired concentricity. The bladder is pressurized through an annular air passage system and a sealed conduit extending radially through the pressure chamber inside the bead lock.</p> |
申请公布号 |
CA1149273(A) |
申请公布日期 |
1983.07.05 |
申请号 |
CA19800348053 |
申请日期 |
1980.03.20 |
申请人 |
NRM CORPORATION |
发明人 |
SHICHMAN, DANIEL;NOLD, S. EDWARD;ENDERS, GEORGE E. |
分类号 |
B29C67/00;B29D30/00;B29D30/24;B29D30/32;(IPC1-7):B29H17/02 |
主分类号 |
B29C67/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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