发明名称 |
Material conveying apparatus and method |
摘要 |
An extendible conveyor for conveying material to be loaded or unloaded from a trailer includes a telescoping boom supporting an endless conveyor belt for rotation about the telescoping boom at any extension length. A belt take-up is provided external to the telescoping boom for releasing or taking-up excess belt corresponding to the movement of the telescoping boom. A belt tension control arrangement which includes a control circuit and an extension sensor is provided to coordinate the release or take-up of excess conveyor belt corresponding to the telescoping boom movement while maintaining the conveyor belt at a desired belt tension. The extendible conveyor is pivotally supported for accommodating varying trailer bed heights and material loading conditions.
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申请公布号 |
US5685416(A) |
申请公布日期 |
1997.11.11 |
申请号 |
US19960683802 |
申请日期 |
1996.07.19 |
申请人 |
UNITED PARCEL SERVICE OF AMERICA, INC. |
发明人 |
BONNET, HENRI |
分类号 |
B65G21/14;B65G67/08;(IPC1-7):B65G21/14 |
主分类号 |
B65G21/14 |
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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