Title:
WOODEN SQUARE BAR BORED WITH CHEMICAL SOLUTION PENETRATION HOLE AND BORING METHOD OF CHEMICAL PENETRATION HOLE TO WOODEN SQUARE BAR
Document Type and Number:
Japanese Patent JP2019119125
Kind Code:
A
Abstract:
To provide a wooden square bar to which flame retardant, antiseptic agent, and other chemical solutions can be easily penetrated into the inner part in a short time.SOLUTION: A plurality of chemical solution penetration holes E... are bored on each side face of a square of a wooden square bar W1 made of a natural wood to respectively reach a predetermined effective depth D so as to maintain a predetermined hole pitch P1 in a width direction and a predetermined hole pitch P2 in a longitudinal direction using a small diameter drill bit without adversely affecting on wood strength. Chemical solution may be charged into the chemical solution penetration holes E... through simple work to apply or spray required chemical solution on surfaces of the wooden square bar W1. Sequentially, just placing the wooden square bar W1 in a room temperature and a normal pressure environment may naturally penetrate the chemical solution charged into the chemical solution penetration holes E... in the width direction and the longitudinal direction of the wooden square bar W1.SELECTED DRAWING: Figure 1
Inventors:
HIDAKA AKIHIRO
Application Number:
JP2017255483A
Publication Date:
July 22, 2019
Filing Date:
December 28, 2017
Export Citation:
Assignee:
HIDAKA AKIHIRO
International Classes:
B27K3/02