Original document(21 pages) Authorized document(21 pages) 中文版
    A rolling unit of big-span winding machine for roll-up steel door is composed of a reel for roll-up door, a motor, a window moving up and down. A gear axle is pivoted to each of both ends of said winder. One gear axle is linked to said reel and another to said motor. Two gear axles are linked via chain. A suppter with more rollers is used to support the long reel. Its advantages are big span, small size, and low noise.
Application Number
申请号		 01124188 Application Date
申请日		 2001.08.21
Title 名称 Improved rolling device for large span cable hoist
Publication Number
公开号		 1401877 Publication Date
公开日		 2003.03.12
Approval Pub. Date Granted Pub. Date 2005.02.23
International Classification 分类号 E06B9/56
Applicant(s) Name
申请人		 Huang Caishan
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 zhu liguang zhang tiebang
More information 更  多  信  息


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