To provide a framework structure of a glass case capable of being assembled just by performing cutting into a required length without the need of working ends for both of a muntin 1 and upper and lower horizontal muntins 3.
In the framework structure of the glass case A assembled by connecting the horizontal muntins 2 and 3 to the ends of the muntins 1 at four corners, while a dovetail groove 11 is formed along the longitudinal direction on side faces perpendicular to each other of the muntin 1, a joining metal fitting 18 is fixed to the ends of the two horizontal muntins 2 and 3 abutted to the side face of the muntin 1, and overhang parts 21 and 22 which can be inserted to the dovetail groove 11 and an abutting piece 23 to be abutted to the end of the muntin 1 are formed on the joining metal fitting 18 of the respective horizontal beams 2 and 3. A leg piece 27 which can be inserted to the dovetail groove 11 is formed on a cap 25 closing the end of the muntin 1, the abutting piece 23 is respectively abutted to the end of the muntin 1, the leg piece 27 of the cap 25 is inserted to the dovetail groove 11 together with the overhang parts 21 and 22, and the cap 25 is screwed and fixed to the machine screw hole 13 of the muntin 1.
MURAMATSU MICHIAKI
MURAMATSU MASAHARU