发明名称 |
MECHANISM FOR FEEDING SIMILAR FLAT ITEMS IN SUCCESSION FROM A STACK THEREOF |
摘要 |
Improvements result from using a feed roller always rotating at a constant surface speed to feed mail items successively with gaps between them from a stack to a franking machine without undue variations in the gap lengths when there are variations in the mail item lengths in respective stacks. A cam rocks a cradle about an input roller axis to bring a feed roller against the stack at a frequency to feed the items forward one by one. Gearing between rollers drives a two speed transmission to a cam via one way clutches. For envelopes shorter than a predetermined limit, the higher speed drive operates. When a rear mail guide member engages envelopes longer than the limit, a lever allows a pawl to disengage a wrap spring clutch disabling the higher speed drive and rendering the lower speed drive effective. |
申请公布号 |
DE3573591(D1) |
申请公布日期 |
1989.11.16 |
申请号 |
DE19853573591 |
申请日期 |
1985.04.01 |
申请人 |
ALCATEL BUSINESS SYSTEMS LIMITED |
发明人 |
WILLIAMS, THOMAS DOUGLAS;USHER, PAUL |
分类号 |
B65H3/06;B65H5/06;(IPC1-7):B65H3/06 |
主分类号 |
B65H3/06 |
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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