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    • 74. 发明授权
    • Multiplex writing implement
    • 复写书写工具
    • US5909975A
    • 1999-06-08
    • US943074
    • 1997-10-01
    • Seiichi Kobayashi
    • Seiichi Kobayashi
    • B43K25/02B43K24/10B43K24/14B43K27/00B43K7/01
    • B43K24/14
    • The multiplex writing implement includes: a cylindrical portion formed in the rear of the elliptical cylinder portion of the middle barrel; a rotary shaft which is disposed in the bore of the cylindrical portion so as to rotate in a range of about 180.degree. relative to the middle barrel and has a pair of cam grooves in the peripheral surface thereof; and a rear barrel which fits on the outer periphery of the cylindrical portion and is integrally attached to the rear end of the rotary shaft which is projected out from the rear end of the cylindrical portion, and is constructed such that the rear barrel is rotatable relative to the middle barrel; the pair of sliding pieces which respectively have projections on inner sides facing each other, engaging the cam grooves of the rotary shaft are guided inside the bore of the middle barrel so as to only move forwards and backwards; and the sliding pieces can alternately move forwards and backwards following the rotation of the rotary shaft as the rear barrel is rotated.
    • 多重书写工具包括:形成在中间筒的椭圆筒部分的后部的圆柱形部分; 旋转轴,其设置在所述圆筒部的孔中,以相对于所述中筒在约180度的范围内旋转,并且在其外周面具有一对凸轮槽; 以及后筒,其配合在所述圆筒部的外周,并且一体地安装在从所述圆筒部的后端突出的所述旋转轴的后端,并且构造成使得所述后筒能够相对旋转 到中桶; 一对滑动件在内侧面彼此面对,与旋转轴的凸轮槽接合,在中间筒的孔内被引导以仅向前后移动; 并且当后筒旋转时,滑动件可随着旋转轴的旋转而交替地向前和向后移动。
    • 75. 发明授权
    • Ball-point pen
    • 圆珠笔
    • US5655847A
    • 1997-08-12
    • US334182
    • 1994-11-03
    • Seiichi KobayashiKazuhiko Furukawa
    • Seiichi KobayashiKazuhiko Furukawa
    • B43K5/18B43K7/01B43K7/10B43K7/00
    • B43K7/10B43K5/1881B43K7/01
    • A ball-point pen of the present invention is provided which includes: a ball-point pen refill being accommodated in the barrel cylinder and having: a tip with a tip ball held at the front end thereof; an ink reservoir which stores low-viscosity oily ink and has an ink follower provided in the rear end of the ink; and a joint disposed between the tip and the ink reservoir. The joint further includes: a valve chamber holding a ball valve in its inside and communicating with the rear end of the tip; and a ball valve seat disposed on the rear side of the valve chamber for the ball valve in order to prevent backward flow of ink. With this configuration, it is possible to provide a ball-point pen which, without need of any cap, can create dense writing traces free from blotting and unevenness even when a low viscosity oily ink is used.
    • 提供本发明的圆珠笔,其包括:圆珠笔笔芯,其容纳在所述圆柱滚筒中,并具有:尖端,其顶端保持在其前端; 存储低粘度油性墨水并具有设置在墨水后端的墨汁随动物的墨水储存器; 以及设置在尖端和墨水容器之间的接头。 接头还包括:阀室,其内部保持有球阀,并与尖端的后端连通; 以及球阀座,其设置在球阀的阀室的后侧,以防止墨的反向流动。 利用这种结构,即使使用低粘度的油性油墨,也可以提供一种不需要任何盖子的圆珠笔即可产生无印迹和不均匀的致密书写痕迹。