Patent ID: 9644653
Date: 2017-05-09
CPC Classifications: B32B,F16B,Y10T

Claim:
1. A board comprising: an upper covering layer, which extends in a longitudinal direction; a lower covering layer, which extends parallel to the upper covering layer and is spaced apart from the upper covering layer in a direction perpendicular to the longitudinal direction; a middle layer including a material of a lower density than both of said covering layers, which extends between the upper covering layer and the lower covering layer; and a separate bar, which extends between the upper covering layer and the lower covering layer and consists of wood or wood-based material; wherein the bar is connected to and is in direct contact with both of said covering layers, and wherein the bar has at least one of a machine-worked tongue profile or a groove profile, which is formed for mechanical locking in the longitudinal direction and in the direction perpendicular to the longitudinal direction with a corresponding profile of a further component.