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US 10,293,524 B2Granted
Press molding apparatus and press molding method
AssigneeHonda Motor Co., Ltd.
InventorKenichi Kitayama
Life of this patent
Estimating the term…
Abstract
A press molding apparatus includes two dies and press-molds a heated stampable sheet into a predetermined shape by using the two dies. The press molding apparatus includes a movable core provided in at least one of the two dies. The movable core is disposed at an inward side of an edge portion of a cavity. When receiving a pressure greater than or equal to a predetermined value, the movable core moves in such a direction that the cavity increases in volume.
Claims9
A press molding apparatus, comprising:
- two dies configured to press-mold a heated stampable sheet into a predetermined shape;
- and
- a movable core provided in one die of the two dies,
- wherein the movable core is disposed at an inward side of an edge portion of a cavity,
- when receiving a first pressure less than a predetermined value, a surface of the cavity is a flat surface which comprises a first surface of the movable core and a second surface of the one die, and
- when receiving a second pressure greater than or equal to the predetermined value, the movable core moves in such a direction that the cavity increases in volume, and
- wherein the movable core is supported by a coil spring that is compressible by the second pressure greater than or equal to the predetermined value.
4 more elements
A press molding apparatus, comprising:
- two dies configured to press-mold a heated stampable sheet into a predetermined shape,
- wherein the dies include a lower die and an upper die that faces the lower die;
- and
- a movable core provided in one die of the two dies,
- wherein the movable core is disposed at an inward side of an edge portion of a cavity,
- wherein a surface of the cavity is constituted by a plurality of surfaces that include a first surface and a second surface positioned below the first surface,
- wherein the movable core is provided in at least one of the second surface and a facing surface of the upper die which faces the second surface, and
- wherein the upper die is provided with at least two movable cores,
- when receiving a first pressure less than a predetermined value, the surface of the cavity is a flat surface which comprises a third surface of the movable core and the second surface of the one die, and
- when receiving a second pressure greater than or equal to the predetermined value, the movable core moves in such a direction that the cavity increases in volume.
7 more elements
Dependencies are inferred from the claim text.