Patent ID: 11919324
Assignee: KABUSHIKI KAISHA PILOT CORPORATION
Field: Other consumer goods (Other fields)
Classification: CPC B | IPC B

Claim 1:
2. The soft-member attachment structure according to claim 1, wherein
the attachment portion is integrally formed under the large diameter portion as a single piece using a material same as that of the soft member,
the internal hole is provided with a length from the attachment portion to a position reaching the large diameter portion in the soft member, and,
in a state where the attachment portion is inserted into the attachment hole and the inner core is inserted into the internal hole, the inner core is held in a position corresponding to the inner circumferential surface of the attachment hole to configure the attachment portion to be sandwiched between the outer circumferential surface of the inner core and the inner circumferential surface of the attachment hole.