US Patent 11493111 Chain plate

A chain plate includes two end segments, and an intermediate segment between the end segments. One of the end segments has an extension portion extending away from a rod hole of the end segment in a lengthwise direction. A distance from a center of the rod hole to an edge of the end segment in the lengthwise direction is greater than a distance from the center of the rod hole to an edge of the end segment in a widthwise direction. An inner surface of the chain plate has a first inclined region corresponding to a peripheral region of the end segment, and a second inclined region corresponding to the extension portion and between the first inclined region and the rod hole. The intermediate segment is formed with a recess.