Problem to be solved.Solution: it is arranged between the inner door 10 and the outer window 20 which can be slidable.A pin member 50B attached to the inner door 10 through a base 60 and a pin memberA groove shaped guide hole 52 through which pin member 50B is insertedProvided with an arm member 50A attached to the outer window 20 in a rotatable stateA slide limiting device 50 for restricting the relative sliding of the inner and outer Shoji 10 and 20 by penetrating the pin member 50B through the guide hole 52 to the arm memberBase 60Uchi Shoji 10 andBetween the crescent 40A of the crescent lock 40 provided in the inner door 10 is interposedTogether with the pedestal 41 of the crescent 40a, there is a support table 60b attached to the inner door 10 by a mounting screw 43;The support table 60b isA screw insertion hole 63 through which the mounting screw 43 is inserted is provided.The screw insertion portion 72 is formed of metal.Diagram
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