Patent ID: 8123299

Claim:
A method for manufacturing an armrest comprising: making a plurality of core sections, with each of the plurality of core sections being formed by bonding a plurality of waste pieces of high-quality wood together; processing outer faces of the plurality of core sections to be smooth and planar, with each of the plurality of the core sections having two lateral faces and top and bottom faces, with each of two adjacent ends respectively of two adjacent core sections machined to provide a serrated coupling face having a plurality of horizontal grooves and a plurality of horizontal protrusions, with the plurality of core sections being bonded together to form a core by applying adhesive to the serrated coupling faces to bond the two adjacent ends respectively of the two adjacent core sections; preparing a surface portion made of a material the same as the plurality of core sections and bonding the surface portion to the core, with the surface portion including a plurality of upper boards and a plurality of lateral boards, with each of two adjacent ends respectively of two adjacent upper boards having a first, planar, engaging face, with each of two adjacent ends respectively of two adjacent lateral boards having a second, planar engaging face, with each of the plurality of lateral boards having a height the same as that of the lateral face of each of the plurality of core sections, with each of the plurality of upper boards having a width the same as a sum of a width of the top face of each of the plurality of core sections and two times of a width of a top face of each of the plurality of lateral boards, with inner faces of the plurality of lateral boards bonded to the lateral faces of the plurality of core sections, with inner faces of the plurality of upper boards bonded to the top faces of the plurality of core sections and the top faces of the plurality of lateral boards, with the first engaging faces of two adjacent upper boards bonded together and leaving an unobvious rectilinear coupling edge, with the second engaging faces of two adjacent lateral boards bonded together and leaving an unobvious rectilinear coupling edge, with serrated coupling edges of the serrated coupling faces of the plurality of core sections covered by the plurality of lateral boards; and processing the armrest to include a first outline on outer faces of the plurality of upper boards and a second outline on outer faces of the lateral boards, with the top faces of the plurality of core sections still covered by the plurality of upper boards, and with the lateral faces of the plurality of core sections still covered by the plurality of lateral boards.