Mold device and foam production method

A mold device which includes a first mold and a second mold, and in which a cavity is formed by closing the first and second molds, the mold device comprising:

• a first displacement portion that is provided on a first surface of the first mold and is displaced, along the first surface and in a first direction that is a direction along the first surface, between a first press position and a first release position, the first displacement portion pressing the second mold against the first mold when positioned in the first press position and releasing the pressing when positioned in the first release position;
• a second displacement portion that is provided on a second surface intersecting the first surface and is displaced along the same direction as the first direction between a second press position and a second release position, the second displacement portion pressing the second mold against the first mold when positioned in the second press position and releasing the pressing when positioned in the second release position;
• and
• a linking portion that links the first displacement portion and the second displacement portion,
• wherein the first mold is a rectangle having a short side and a long side in a plan view,
• the second surface includes the short side, and the first surface includes the long side, and
• when the second displacement portion is displaced from the second release position toward the second press position,
• the first displacement portion is positioned in the first press position before the second displacement portion is positioned in the second press position, and, until the second displacement portion is positioned in the second press position, the first displacement portion swings in a state in which the pressing is maintained.

A mold device which includes a first mold and a second mold, and in which a cavity is formed by closing the first and second molds, the mold device comprising:

• a third displacement portion that is disposed on a first-surface side of the first mold;
• and
• a hinge member that includes a shaft member extending in a second direction intersecting a first direction that is a direction along the first surface of the first mold, the hinge member supporting the first and second molds so as to be rotatable about the shaft member,
• wherein the third displacement portion is displaced between a third press position and a third release position, and presses the shaft member in a third direction intersecting the first and second directions when positioned in the third press position and releases the pressing when positioned in the third release position.

A mold device which includes a first mold and a second mold, and in which a cavity is formed by closing the first and second molds,

• the first mold including a first surface that extends in a first direction and a second surface that extends in a second direction intersecting the first direction, and the second mold including a third surface extending in the first direction and a fourth surface extending in the second direction, the mold device comprising:
• a first fixed member that is fixed to the fourth surface;
• and
• a sixth displacement portion that is disposed on the first-surface side and rotatably supported by a sixth shaft extending in the second direction, and is displaced between a sixth press position in which the sixth displacement portion presses the first fixed member in a third direction intersecting the first and second directions and a sixth release position in which the sixth displacement portion releases the pressing,
• wherein the first fixed member includes a receiving portion that projects further in the second direction than the first surface or the third surface, and
• the sixth displacement portion swings along the first direction between the sixth press position and the sixth release position and includes a pressing portion that, in the sixth press position, presses the receiving portion.