Abstract: A method for manufacturing an ink tank comprises the steps of supplying a container having an opening, inserting a porous member into the opening of the container in a compressed state, and holding the porous member in the compressed state by fixing a plate member to the opening of the container. The porous member is compressed more in a direction substantially orthogonal to the direction of the insertion into the opening. When compressing the porous member, the porous member is clamped in the same direction as the inserting direction so as not to allow the porous member to be deformed in the inserting direction, and in such state, the porous member is compressed in directions substantially orthogonal to the inserting direction.

Abstract: A method for manufacturing an ink tank comprises the steps of supplying an container having an opening, inserting a porous member into the opening of the container in a state of being compressed, and holding the porous member in the compressed state by fixing a plate member to the opening of the container, and the porous member being in a compressed shape more in the direction substantially orthogonal to the direction of the insertion when the porous member is compressed in the inserting direction into the opening.

Abstract: An inner sole for a shoe which has upper and lower foot form sheets bonded through an elastic porous material to the heel of the rear portion thereof and through spaces to the front portion thereof, a suction valve provided in a portion to be bonded to the elastic porous material of the lower foot form sheet, an air feed valve provided at the front of the elastic porous material, and an air discharge hole formed at the front portion of the upper foot form sheet in such a manner that the discharge hole is communicated through an air feed passage, obtained between the spacer, with the valve hole of the suction valve. Thus, a foot is hardly moistened even if the shoe is worn for a long time.