Pen points for writing instruments

In pen point for writing instruments which is a rod-shaped wick formed by uniting molten synthetic resin monofilaments, wherein radially curved narrow slots extend toward the center of the wick from an outer periphery portion (ring portion) in the cross-section and the radial narrow slots are defined by a plurality of segments projected from the ring portion, an improvement comprises that the rod-shaped wick is provided in the cross-section with curved narrow slots extending not only in the substantially radial direction toward the center from the inside of the ring portion but also in the other directions,

• said narrow slots are defined by the components of the pen point consisting of the ring portion forming the outer periphery of the rod-shaped wick, a plurality of trunk portions or trunk portions and stem segments which are projected inwardly from the inner periphery of the ring and partition the inner space of the ring and a plurality of branch portions, which are branched and projected from every trunk and additionally partition the remainder of the above described space,
• said components of the trunks, the trunks and stems and branches are adjacently arranged so that the top portions, the end portions and the sides of these components are not connected with one another and that these components constitute 2 - 6 fold axis symmetry wherein the center axis of the ring is the rotary axis,
• every component of the ring, the trunks, the stems and the branches has at least one size and shape,
• every trunk provided with branches form at least one of standing tree-formed projections in the inside of the ring,
• the trunks or the stems of the number corresponding to the fold number of the above described fold axis symmetry are opposed at the center portion to form a center passage,
• every side of the narrow slots is formed by connection of circular arcs of a large number of monofilaments, which constitute the elementary components and
• said center passage and the narrow slots extend from one end to the other end of the pen point.