| 摘要 |
A steering apparatus includes a grip core and a rim part. The grip core has a cross-sectional area substantially constant in a longitudinal direction of the grip core. The rim part is molded by foaming of a material liquid in a mold, and configured to cover the grip core. A first portion of the rim part is smaller in cross-sectional area than a second portion of the rim part, wherein the mold includes a vent opening facing the first portion of the rim part during the molding of the rim part, wherein the mold includes a material liquid infusion opening facing the second portion of the rim part during the molding of the rim part, and wherein the material liquid is infused into the mold through the material liquid infusion opening, and allowed to flow toward the vent opening. |
