Joining Device for Use in an Advanced Framework Construction Method, Method for Joining Wooden Members Using the Joining Device, and Cutting Method for Adapting Wooden Members for Use wih the Joining Device

Abstract

A special jointing metal device for advanced framework construction method includes a flat plate section having a rectangular shape and cylindrical sections which are provided to the flat plate section in one body along opposite edges of the flat plate section, so that wooden members are jointed to one another by inserting the special jointing metal device into holes each of which is formed in the corresponding wooden member.

What is claimed is:  
     
         1 . A special jointing metal device for advanced framework construction which joints wooden members to one another by inserting the special jointing metal device into holes of the wooden members, said special jointing metal device comprising; 
 a flat plate section having a rectangular shape, and    cylindrical sections which are connected to said flat plate section along opposing edges of said flat plate section.    
     
     
         2 . A special jointing metal device for advanced framework construction which joints wooden members to one another by inserting the special jointing metal device into holes of the wooden members, said special jointing metal device comprising; 
 a flat plate section having a rectangular shape,    a cylindrical section which is connected to said flat plate section along a first edge of said flat plate section,    a U-shape cut away section which is formed by cutting away said flat plate section from one of opposing edges which cross said first edge, and    a hole which is provided at a bottom-ward position with respect to said U-shape cut away section.    
     
     
         3 . A method for jointing wooden members using a special jointing metal device for advanced framework construction comprising; 
 forming first holes communicating to one another in one of said wooden members in which first holes one of cylindrical sections of a metal device according to    claim 1    and about half portion of a flat plate section of said metal device according to    claim 1    which half portion is connected to said cylindrical section are to be inserted, said first holes having a first opening,    forming second holes communicating to one another in the other of said wooden members in which second holes the other cylindrical section of said metal device and remaining half portion of said flat plate section of said metal device which remaining half portion is connected to said other cylindrical section are to be inserted, said second holes having a second opening,    butting said both wooden members so that said first opening and said second opening are coincident to one another, and    inserting said metal device in said first and second holes.    
     
     
         4 . A method for jointing wooden members to one another using a special jointing metal device for advanced framework construction comprising; 
 forming first holes communicating to one another in one of said wooden members in which first holes one of cylindrical sections of a metal device according to    claim 2    and a partial portion of a flat plate section of said metal device which is connected to said cylindrical section are to be inserted,    forming a second hole in the other wooden member in which a remaining portion of said flat plate section is to be inserted,    inserting a corresponding portion of said metal device in said first holes of said one of said wooden members so that said remaining portion of said flat plate section is projected therefrom,    inserting said remaining portion of said flat plate section in said second hole of said other wooden member,    engaging a first rod member to a U-shape cut away section of said metal device which first rod member is previously provided at a corresponding position of said other wooden member,    inserting a second rod member in a through hole of said other wooden member and a third hole of said metal device which through hole is previously formed at a corresponding position of said other wooden member.    
     
     
         5 . A cutting method for a special jointing metal device for advanced framework construction which cutting method forms holes in a wooden member simultaneously in which holes a cylindrical section of a metal device according to    claim 1    and a partial portion of a flat plate section of said metal device are to be inserted which partial portion is connected to said cylindrical section, said cutting method comprising; 
 employing a drill including a first cutter having a cylindrical rod shape and a second cutter having a sphere shape which first cutter has first cutting blades elongating in a longitudinal direction, which second cutter is provided in one body at a leading edge section of said first cutter and has second cutting blades elongating in radial directions,  
 contacting said drill to one face of said wooden member from side so that said second cutter is positioned at a predetermined depth position, and  
 moving said drill in a rotating condition in a depth direction to a predetermined depth so as to form a hole so that said cylindrical section of said metal device and said partial portion of said flat plate section of said metal device are hidden in said hole.  
 
     
     
         6 . A cutting method for a special jointing metal device for advanced framework construction which cutting method forms holes in a wooden member simultaneously in which holes a cylindrical section of a metal device according to    claim 2    and a partial portion of a flat plate section of said metal device are to be inserted which partial portion is connected to said cylindrical section, said cutting method comprising; 
 employing a drill including a first cutter having a cylindrical rod shape and a second cutter having a sphere shape which first cutter has first cutting blades elongating in a longitudinal direction, which second cutter is provided in one body at a leading edge section of said first cutter and has second cutting blades elongating in radial directions,  
 contacting said drill to one face of said wooden member from side so that said second cutter is positioned at a predetermined depth position, and  
 moving said drill in a rotating condition in a depth direction to a predetermined depth so as to form a hole so that said cylindrical section of said metal device and said partial portion of said flat plate section of said metal device are hidden in said hole.