Retainer
AssigneeYamashina Corporation
InventorsSeiji Ikeda, Takatoshi Omori
Life of this patent
Estimating the term…
Abstract
To provide a retainer having excellent moldability and durability while having a predetermined pull-out load and predetermined rotational torque. The retainer includes a nut main body 10 having a female thread 11, longitudinal ribs 13 formed between a plurality of recessed portions 12 and 12 provided along an outer circumferential surface of the nut main body 10, transverse ribs 14 formed between a plurality of recessed portions 12 and 12 provided on the outer circumferential surface of the nut main body 10 along an axial center direction, and the longitudinal ribs 13 and the transverse ribs 14 are connected to each other. Then, the longitudinal ribs 13 and the transverse ribs 14 form a frame structure.
Claims12
A retainer comprising:
- a retainer main body having a fitting hole, and pre-embedded in a resin base containing carbon fiber;
- longitudinal ribs formed between a plurality of recessed portions provided along an outer circumferential surface of the retainer main body, and formed parallel along an axial center direction;
- and
- transverse ribs formed between a plurality of recessed portions provided on the outer circumferential surface of the retainer main body along an axial center direction,
- wherein the longitudinal ribs and the transverse ribs are connected so as to intersect each other, and thus form a frame structure, and
- wherein a surface having a radius of curvature of 0.5 mm to 2 mm is formed in an inner corner portion of the recessed portions.
Dependencies are inferred from the claim text.