Back to results
US 6,638,457 B2Granted
Manufacturing method for hollow panel
AssigneeYamaha Corporation
InventorTakayoshi Inagaki
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeYamaha Corporation
InventorTakayoshi Inagaki
Estimating the term…
In a manufacturing method for hollow panels wherein highly rigid, lighter and various shapes of hollow panels constructed by layering board material made from fibers, wood elements, or wood strands can be obtained economically, wood strands on which a binder is added are layered with a plurality of cores, a thermal compression molding is performed on this layered material uniformly, cores are extracted after the thermal compression molding, and thus ribs and holes are formed in the panel. Also in the core is a bar which may be of irregular shape, and the core can be a combination of bars having the same or different cross sections. The cores are joined by joining boards in a direction of the short dimension of the core.
A manufacturing method for a hollow panel, comprising:
A manufacturing method for a hollow panel, comprising:
A manufacturing method for a hollow panel, comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Manufacture of non-flat articles: hollow articles
Methods of surface bonding and/or assembly therefor: with permanent bending or reshaping or surface deformation of self sustaining lamina
With permanent bending or reshaping or surface deformation of self sustaining lamina: by bending, drawing or stretch forming sheet to assume shape…
Manufacture by dry processes of articles, with or without organic binding agents
Term ended 15 Oct 2021 (estimated)
1. Field of the Invention
The present invention relates to a manufacturing method for a hollow panel. The present invention particularly relates to a manufacturing method for obtaining highly rigid, light-weight hollow panels made by layering boards made from materials such as fibers or wood element.
2. Description of Related Art
FIG. 1 is a perspective view of an example of hollow panels manufactured by the first embodiment in the present manufacturing method for hollow panels.
FIG. 2 is a cross section showing a part of the manufacturing step of the first embodiment.
FIG. 3 is a perspective view showing a part of the manufacturing step of the first embodiment.
Embodiments of the present invention are explained as below. The present invention is not limited to these embodiments. Features of each embodiment can be combined with those of other, and the features of each embodiment can be combined with other known features.
FIG. 1 is a perspective view of an example of panels manufactured using the present manufacturing method for hollow panels.
This panel 10 is made by adding binder to fibers or wood elements, by layering, with a plurality of cores, the fibers or wood elements to which this binder is added, performing the thermal compression molding uniformly on the layered materials, binding the layered materials uniformly, extracting the cores from the layered materials after the thermal compression molding, making a plurality of holes 11, which holes are separated by ribs 12, in the longitudinal direction of panel 10.