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US 5,851,325 AGranted
Method of manufacturing a molded wooden product
AssigneeToyota Jidosha Kabushiki Kaisha
InventorsMasaki Terada, Yoshio Taguchi
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Abstract
This invention relates to a method of manufacturing molded wooden products composed of a wooden body and a skin material. This method employs materials having long working life and enables simultaneous integral molding of the wooden body and the skin. The obtained molded wooden product has excellent characteristics.
Claims17
A method of manufacturing a molded wooden product composed of a wooden body and a skin, comprising:
- adding a binder to wood fibers to form a fibrous mixture;
- stacking said fibrous mixture to form a collected body of wooden material;
- delivering said collected body of wooden material to a compression mold wherein a skin material has been provided previously, said mold having a first mold half with which the skin material comes into contact and a second mold half with which the collected body of wooden material comes into contact;
- and
- compressing said collected body of wooden material and said skin material under heat to eliminate a large portion of air within the collected body and form said wooden body and to adhere said wooden body and said skin material simultaneously to form said molded wooden product,
- wherein said first mold half is heated to a first temperature less than a second temperature to which said second mold half is heated to minimize warp of said molded wooden product, and wherein said binder is selected from the group consisting of an anaerobic adhesive, an unsaturated polyester and a combination of a phenol resin and a polyisocyanate.
3 more elements
Dependencies are inferred from the claim text.