发明名称 |
Magnetic rotary locking and tensioning mechanism |
摘要 |
A magnetic rotary locking mechanism for locking a plate or sheet-like member by placing it in tension which may be adapted to provide a self-tensioning locking device for securing a printing plate to a printing cylinder in a rotary printing press. The base and rotatable bar each have formed therein a plurality of magnetic strips which generate a plurality of magnetic fields so that the bar magnetic fields are attracted to the base magnetic fields at a first angular position of the bar with respect to the base and are repelled by the base magnetic fields at a second angular position of the bar with respect to the base.
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申请公布号 |
US4974512(A) |
申请公布日期 |
1990.12.04 |
申请号 |
US19890422777 |
申请日期 |
1989.10.17 |
申请人 |
NU-GRAPHICS EQUIPMENT, INC. |
发明人 |
RUSSO, ALBERTO |
分类号 |
B41F27/12 |
主分类号 |
B41F27/12 |
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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