发明公开
- 专利标题: Paper pressing device for printing machines
- 专利标题(中): 印刷机用压纸装置
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申请号: EP84301521.5申请日: 1984-03-07
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公开(公告)号: EP0118318A2公开(公告)日: 1984-09-12
- 发明人: Carena, Ugo
- 申请人: Ing. C. Olivetti & C., S.p.A.
- 申请人地址: Via G. Jervis 77 I-10015 Ivrea (Torino) IT
- 专利权人: Ing. C. Olivetti & C., S.p.A.
- 当前专利权人: Ing. C. Olivetti & C., S.p.A.
- 当前专利权人地址: Via G. Jervis 77 I-10015 Ivrea (Torino) IT
- 代理机构: Pears, David Ashley (GB)
- 优先权: IT6725683 19830307
- 主分类号: B41J13/16
- IPC分类号: B41J13/16 ; B41J13/036
摘要:
The device comprises two or more cover plate members (14), whose lengths are submultiples of the lengths of a range of platen rollers (12) and such that two or more plate members disposed in side-by-side relationship cover the entire length of the platen roller. Each plate member (14) comprises a lower guide portion (16) of part-cylindrical shape and two wall portions (17, 18) which are substantially planar and set at different angles of inclination, being connected to the lower guide portion in such a way as to lead in a sheet of paper (19) towards the guide portion. Each plate member (14) is pivotally mounted on a control shaft (22) which is parallel to the axis of the roller (12) and capable of preventing transverse movements of the plate member with respect to the roller, and carries the usual paper pressing rollers (34,36) which are disposed in two parallel rows. A leaf spring (26) co-operates with a lug (24) on the plate member (14) to hold the paper pressing rollers pressed against the platen roller. The control shaft comprises opening cams (57) arranged to co-operate with the leaf springs to disengage same from the respective lugs and to permit the respective plate members to drop away from the platen roller (12), whereby the paper pressing rollers (34, 36) are disengaged from the platen roller to assist in introducing the sheet of paper.
公开/授权文献
- EP0118318B1 Paper pressing device for printing machines 公开/授权日:1989-05-17
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