Abstract: For forming a main body of a toilet bowl with which installation operation of a trap device is easy and which is superior in ornamental design possibilities and that has sufficient mechanical strength, the main body (1) of the toilet bowl is formed by cast molding as a unit with a bowl portion (3), a rising pipe (5) which is continuous with a drain opening (4) of the bowl portion, a falling pipe (6) which is continuous with the rising pipe (5) and a skirt portion (7) covering from a side portion to a rear portion thereof, and is opened in the lower portion and the rear portion of the main body, and further a fold back portion (8) is formed as a unit from the main body of the toilet bowl in the rear portion thereof.

Abstract: A modular toilet bowl assembly bowl assembly that allows adjustment of the relevant dimensions of the inlet of the outlet as well as the height of a toilet bowl without modifying the toilet bowl body. The toilet bowl includes a toilet bowl and upper drain pipe portion that are formed integrally as a single piece, a lower drain pipe portion that is formed separately from the toilet stool. The lower drain pipe portion may be formed of a series of parts having known dimensions so that by interior moving predetermined parts, the length or height of the toilet bowl can be adjusted.

Abstract: A tank device for flushing a toilet bowl includes a tank body in which flushing water is stored and in which a discharge opening is provided at the bottom. A discharge valve body is linked to the discharge opening at the bottom of the tank body. The discharge opening is formed with a valve seat on the upper end and communicates with an overflow pipe at the downstream side of the valve seat. Driving members are provided which separate a valve body from the valve seat. A support member is provided for supporting the driving members, which is fitted onto the overflow pipe and which is seated at the lower end on the bottom of the tank body. A force is applied to an actuator from outside of the tank body to separate the valve body from the valve seat.

Abstract: In connecting a flushing port (2) of a toilet stool (1) which is formed so as to face the floor surface to which the toilet stool (1) is installed to a drainpipe (3) of the building, the connection is made by means of a flushing-side connecting pipe (6) which connects to the flushing port (2), a drain-side connecting pipe (7) which connects to the drainpipe (3), and a linking pipe (8) which makes connection between the above-noted two pipes. In making the pipe connections, the linking pipe (8) is cut off in accordance with the distance between the flushing port (2) and the drainpipe (3) or pipe insertion overlap can be used to adjust the length of the linking pipe (8).