Grooved noodle
A grooved noodle comprises: a core located at a center position of a noodle in cross section and having a circular shape with a diameter being 26% to 41% of a diameter of the noodle; and hook-shaped portions formed on a periphery of the core due to existences of grooves each extending spirally from the periphery of the core to a surface of the noodle, each hook-shaped portion having a leg with a width in a range of 18% to 30% of the diameter of the noodle and a blade extending from an outer end of the leg, an outer periphery of the blade extending along an arc from its base connected to the leg to its tip, the base being located further inwardly toward the center of the noodle than the tip.
1. A grooved noodle having a plurality of grooves formed along the noodle and having a substantially circular configuration in cross section, the grooved noodle comprising:
a core located at a center position of the noodle in cross section and having a cross sectional shape of a substantial circle with a diameter being 26% to 41% of a diameter of the noodle; and
a plurality of hook-shaped portions formed on a periphery of the core and oriented in a same rotational direction due to existence of the grooves, each groove having a cross sectional shape so as to extend from the periphery of the core to a surface of the noodle along a spirally curved line with the core as a center thereof,
wherein each of the hook-shaped portions has a leg extending from the core in a substantially radial direction with respect to the noodle and a blade extending from an outer end of the leg in a substantially circumferential direction of the noodle in cross section, each of the grooves has a width gradually increasing from the periphery of the core to the surface of the noodle,
wherein the leg of each hook-shaped portion has a width of 18% to 30% of the diameter of the noodle in cross section,
wherein an outer periphery of the blade of each hook-shaped portion extends along an arc from a base of the blade, which is connected to the leg, to a tip of the blade in cross section, the base being located further inwardly toward the center of the noodle than the tip so that the tip of the outer periphery of the blade of each hook-shaped portion is in contact with a circle representing the substantially circular configuration of the noodle while the base of the outer periphery of the blade of each hook-shaped portion is located in a receding position from the circle by a given distance,
wherein the plurality of grooves are those selected from two grooves, three grooves and four grooves arranged by equal spaces.
2. The grooved noodle according to claim 1 , wherein the tip of the blade of each hook-shaped portion is curved with a given radius of curvature in cross section.
3. The grooved noodle according to claim 1 , wherein a lateral side of the deepest portion of each groove is in contact with the periphery of the core so as to extend in a tangential direction of the circumference of the core in cross section.