OPENING LATTICE

PROBLEM TO BE SOLVED: To provide an opening lattice having an excellent crime preventive capacity and excellent workability. SOLUTION: The opening lattice is provided with a pair of frame members 1 arranged with a space, and a plurality of sash bars 2 put between the frame members. In the frame member 1, a fixed frame 13 forming a grooved shape opening to the outdoor side and a front side frame 4 forming a groove shape opening to the body side are shaped so as to form an engulfing shape of the inner peripheral side protrusion 9 of the fixed frame in the groove of the front side frame 4 and the fitting member 5 is constituted by fitting it in the fitting part to be fitted from the longitudinal end or the outer peripheral side. Locking tools 15, 16 of the fitting members are provided between either the fixing frame 3 or the front side frame 4 and the fitting member 5. The sash bar 2 penetrates the inner peripheral side protrusion 12 of the front side frame 4 and the end is fixed to the inner peripheral side protrusion 9 of the fixing frame 3, in the state before the fitting member 5 is inserted, the front side frame 4 is constituted to slide while using the sash bar 2 as a guide. COPYRIGHT: (C)2005,JPO&NCIPI