发明公开
EP0452281A1 A ballpoint pen with a retractable writing tip 失效
Kugelschreiber mit einer einziehbaren Schreibspitze。

  • 专利标题: A ballpoint pen with a retractable writing tip
  • 专利标题(中): Kugelschreiber mit einer einziehbaren Schreibspitze。
  • 申请号: EP91830136.7
    申请日: 1991-04-09
  • 公开(公告)号: EP0452281A1
    公开(公告)日: 1991-10-16
  • 发明人: Avenatti, Giovanni
  • 申请人: STILOLINEA S.r.l.
  • 申请人地址: Via Toscana, 34/56, Autoporto Pescarito I-10099 San Mauro Torinese,(Torino) IT
  • 专利权人: STILOLINEA S.r.l.
  • 当前专利权人: STILOLINEA S.r.l.
  • 当前专利权人地址: Via Toscana, 34/56, Autoporto Pescarito I-10099 San Mauro Torinese,(Torino) IT
  • 代理机构: Gerbino, Angelo
  • 优先权: IT5297090U 19900413
  • 主分类号: B43K7/12
  • IPC分类号: B43K7/12
A ballpoint pen with a retractable writing tip
摘要:
The pen includes a hollow, substantially cylindrical barrel (4), a cap (6) mounted coaxially on the end of the barrel (4) opposite that associated with the writing tip (2) and slidable thereon, resilient means (8) interposed between the barrel (4) and the cap (6) and a snap-mechanism (25) located in the barrel (4) for causing the writing tip (2) to project from the barrel (4) or to be retracted therein as a result of the sliding of the cap (6) relative to the barrel (4).
The cap (6) comprises a sleeve (10) and a top portion (12) having a head (14) with a projecting central pin (16) which fits in the sleeve (10), the sleeve (10) and the pin (16) being fixed together by engagement means (18, 20), the free end (22) of the pin (16) having an annular projection (24) which is intended to abut a corresponding surface (21) of the barrel (4) so as to hold the free end (22) in the barrel (4) and acting as an actuator for the snap-mechanism (25).
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