JOINING STRUCTURE FOR DOLL JOINT

PROBLEM TO BE SOLVED: To provide a paper-made joining structure for a doll joint, capable of making a doll joint portion strong, holding a doll stably in a standing state for a long time, and also constituting the doll in an integral manner.SOLUTION: A joining structure for a doll joint comprises an outer cylinder block having a shape of a regular n-polygon (here, n is an even number of 6 or more) and an inner cylinder block having the same shape and a size that slidably fits in a cavity of the outer cylinder block. One end of the inner cylinder block is penetrated through the outer cylinder block from one side surface side of the outer cylinder block toward the other side surface which is plane symmetry to the one side surface, and is protruded out on the other side surface side to be fixed. Further, at least one structure is selected as the joining structure of the doll joint from the followings: a first structure in which a diagonal line passing through a center of the regular n-polygon of the inner cylinder block is aligned with a mountain folding line of the outer cylinder block when penetrating; a second structure in which the diagonal line of the inner cylinder block is aligned with an intermediate line for longitudinally dividing a side wall of the outer cylinder block in half, when penetrating; a third structure in which a center line for symmetrically dividing the regular n-polygon of the inner cylinder block in half is aligned with the mountain fold line of the outer cylinder block when penetrating; and a fourth structure in which the center line of the inner cylinder block is aligned with the intermediate line of the outer cylinder block when penetrating. 【課題】 人形関節部位を堅牢にでき、安定感よく、立設状態を長時間保持することができ、しかも人形を一体的に構成することができる紙製の人形関節の接合構造を提供する。【解決手段】 正ｎ角形（ただし、ｎは６以上の偶数）の外筒ブロックと該外筒ブロックの空洞に摺動自在に嵌る大きさの同一形状の内筒ブロックとから構成されて前記内筒ブロックの一方端を前記外筒ブロックの一方側面側から該一方側面と面対称な他方側面に向かって突き通して前記他方側面側へ突出させて固定してなり、内筒ブロックの正ｎ角形の中心を通る対角線を外筒ブロックの山折線に一致させて突き通した第一構造と内筒ブロックの対角線を外筒ブロックの側壁を長手方向に二分割する中間線に一致させて突き通した第二構造と内筒ブロックの正ｎ角形を左右対称に二分割する中心線を山折線に一致させて突き通した第三構造と内筒ブロックの中心線を外筒ブロックの中間線に一致させて突き通した第四構造とから少なくとも一つ選ばれる人形関節の接合構造。【選択図】図１