发明名称 |
Roll including foam body and method of producing the roll |
摘要 |
A charging roll including a center shaft, a foam layer formed on an outer circumferential surface of the center shaft, an electrically conductive elastic layer formed on an outer surface of the foam layer, and a resistance adjusting layer and a protective layer formed by coating on an outer surface of the electrically conductive elastic layer. The foam layer is an electrically conductive foam body or a foam body a part of which is made electrically conductive. A method of producing a composite roll, such as the above charging roll, which includes a foam layer formed on a shaft, and a solid elastic layer formed on the foam layer, includes the step of forming multiple minute grooves in an outer circumferential surface of a pre-foam tube which gives the foam layer, or an inner circumferential surface of an elastic tube which gives the solid elastic layer.
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申请公布号 |
US6096395(A) |
申请公布日期 |
2000.08.01 |
申请号 |
US19930149815 |
申请日期 |
1993.11.10 |
申请人 |
TOKAI RUBBER INDUSTRIES, LTD. |
发明人 |
HAYASHI, SABURO;OINUMA, SUMIO;YAMAMOTO, TAKAFUMI;SOUMIYA, KAZUTOSHI;KATO, HIROYASU |
分类号 |
B29C44/12;B29C44/14;F16C13/00;G03G15/02;G03G15/08;G03G15/16;G03G15/20;G03G21/00;(IPC1-7):B32B1/08 |
主分类号 |
B29C44/12 |
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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