Model

摘要

A model includes arm parts each including a rotational shaft portion, and a body part including a shaft supporting portion and being connected to and rotatable relative to the arm part. The arm part includes a projecting portion. The body part includes a recessed portion into which the projecting portion is fitted when the rotational shaft portion is inserted into the shaft supporting portion. The rotational shaft portion and the shaft supporting portion include respective locking members that are engageable with each other and limit the movement of the rotational shaft portion in an axial direction within a range between a first position where the projecting portion is fitted in the recessed portion and a second position where the projecting portion is out of the recessed portion.

主权项

1. A model comprising:
a first part including a rotational shaft portion; and a second part rotatable connected to the first part, the second part including a shaft supporting portion configured to accept the rotational shaft portion, wherein the rotational shaft portion is inserted into the shaft supporting portion and supported by the shaft supporting portion in such a manner as to be rotatable and to be movable in an axial direction of the rotational shaft portion, wherein the first part includes a projecting portion provided at a base of the rotational shaft portion, wherein the projecting portion comprises a polygonal shape that is rotationally symmetrical about a center axis of the rotational shaft portion; wherein the second part includes a recessed portion configured to engage the projecting portion provided at an end of an opening provided in the shaft supporting portion, wherein the recessed portion comprises the same polygonal shape as the projecting portion; wherein the projecting portion and the recessed portion are positioned such that, when the rotational shaft portion is inserted to a first axial position within the shaft supporting portion, the projecting portion is engaged with the recessed portion and thereby prevents rotation of the first part relative to the second part, and when the rotational shaft portion is inserted to a second axial position within the shaft supporting portion the first part is free to rotate relative to the second part; wherein, in the first axial position, the rotation shaft portion is positioned further within the shaft supporting portion than in the second axial position; and wherein the rotational shaft portion and the shaft supporting portion include respective locking members that are engageable with each other, the locking members limiting the movement of the rotational shaft portion in the axial direction within a range between the first axial position where the projecting portion is engaged with the recessed portion and the second axial position where the projecting portion is not engaged with the recessed portion.