Patent ID: 7926380

Claim:
A resin gear comprising: a gear body including projecting edges extending from both sides of an outer peripheral edge of the gear body along substantially an entire circumference of the gear body; a plurality of teeth provided on the outer peripheral edge of the gear body; wherein one surface of each of the plurality of teeth includes a tooth plane that is arranged to mesh with another gear, a thickness of each of the plurality of teeth is substantially uniform from a tooth tip to a tooth root; a reinforcing rib is located on a surface of each of the plurality of teeth on an opposite side from the tooth plane; the reinforcing rib is located at an approximate center of each of the plurality of teeth in a widthwise direction of each of the plurality of teeth extending perpendicular or substantially perpendicular to the outer peripheral edge of the gear body; thicknesses of the reinforcing rib and the projecting edges are substantially the same as the thickness of each of the plurality of teeth; the thickness of each of the plurality of teeth is defined by a dimension of each of the plurality of teeth extending along the outer peripheral edge of the gear body; the thickness of the reinforcing rib is defined by a dimension of the reinforcing rib extending in the widthwise direction of each of the plurality of teeth; and the thickness of the projecting edges is defined by a dimension of the projecting edges extending in a radial direction of the gear body.