A polymerizable liquid crystal compound is represented by the formula :. Under a state that a hollow and tubular main body part of an inner terminal formed by covering one of two end parts of a rectangular piece with the other is held by metal molds, and, the resin material is injected. The compartments are inflated and deflated essentially simultaneously by the portable fluid source unit. The lock mechanism includes a groove and at least one protrusion, wherein one of the groove and the protrusion is disposed at the head while the other is disposed at the linear motion mechanism for engaging with each other, and the protrusion and the groove both are disposed in the moving path.