发明名称 |
DRIVE MEANS FOR ROLLER DOOR |
摘要 |
An improved roller door drive assembly comprising a drum, upon which a curtain is rolled, and a gear coaxially mounted to and engaged with the drum. The means of engagement consists of a plurality of forks projecting from the gear adapted to engage drum spokes. This arrangement prevents the ends of the drum while running in a swashplate manner from dragging the gear out of alignment with its driving pinion. In so doing this engagement means prevents excessive wear. |
申请公布号 |
ZA8405684(B) |
申请公布日期 |
1985.02.27 |
申请号 |
ZA19840005684 |
申请日期 |
1984.07.23 |
申请人 |
BYRNE & DAVIDSON INDUSTRIES LIMITED |
发明人 |
MARTIN HARCOURT WHITEHOUSE;RICHARD EVAN JONES |
分类号 |
E06B9/70 |
主分类号 |
E06B9/70 |
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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