| 摘要 |
PURPOSE: To increase pinching reliability of a clip by providing two opening parts in a fitting hole and fixing the base of the clip by the side walls of the respective opening parts in a clip fitting structure in which the base standing in the nearly vertical direction from the pinching piece of the clip is inserted into the fitting hole formed on the side of the body of a cap. CONSTITUTION: A cap α consists of a clip 1 and the body 2 of the cap. The clip 1 has both a pinching piece 3 lengthened in the longitudinal direction of the body 2 of the cap and the base 4 standing in the nearly vertical direction from the pinching piece 3. A ball part 3a for nonslip is formed in the tip part of the pinching piece 3. The body 2 of the cap has a clip fitting hole 6 being a through-hole in the radial direction which is communicated with an inner hole 5 for inserting the body of a writing implement. Two opening parts i.e., a clip insertion port 6a and a clip retainment port 6b are formed on the same line by the clip fitting hole 6. Both sides 1, 2 are fixed in a press-fitting state because the diameter ha of these opening parts 6a, 6b is smaller than the diameter of the respective corresponding parts of the base 4. |
