Operating device for flush water tank assembly

摘要

The present invention relates to an operating device for a flush water tank assembly in a flush toilet as the user can operate operating part toward the one and opposite direction, the rotary direction changing mechanism can change the direction of rotation which is transmitted from the rotating shaft to a rotary wind-up mechanism so that the direction of rotation of the rotary wind-up mechanism can be maintain in a predetermined same direction of rotation. The operating device for the flush water tank assembly includes a drive unit including a rotary wind-up mechanism, a rotary direction changing mechanism for changing the direction of rotation transmitted from the rotating shaft to the rotational wind-up mechanism so that the transmitted direction of rotation can be maintain in accord with a predetermined and fixed direction of rotation, and a limiting mechanism for limiting an angle of rotation of the rotary wind-up mechanism.

主权项

1. An operating device for a flush water tank assembly adapted to actuate a discharge valve disposed in a flush water tank so as to initiate delivery of flush water to a toilet main unit, the operating device comprising:
an operating part for allowing user to select one of one direction and opposite direction of rotating operations, thereby selecting corresponding one of large-scale and small-scale flushing modes; a rotating shaft adapted to rotate either one of the one direction and opposite direction of rotation by rotating operation of the operating part; a connecting member connected to the discharge valve and adapted to open or close the discharge valve to switch an amount of the flush water delivered to the toilet main unit between an amount of the flush water in the large-scale flushing mode and an amount of the flush water in the small-scale flushing mode; and a drive unit pulling up the connecting member in response to the rotation of the rotating shaft; the drive unit comprising:
a rotary wind-up mechanism having a radius of rotation greater than that of the rotating shaft and adapted to wind up the connecting member along the direction of rotation thereof;a rotary direction changing mechanism changing the direction of rotation transmitted from the rotating shaft to the rotational wind-up mechanism so that the direction of rotation of the rotational wind-up mechanism is in a predetermined same direction of rotation both when a direction of rotation of the rotating shaft is the one direction of rotation and when a direction of rotation of the rotating shaft is the opposite direction of rotation; anda limiting mechanism limiting an angle of rotation of the rotary wind-up mechanism such that the angle of rotation of the rotary wind-up mechanism when a direction of rotation of the rotating shaft is one of the one and opposite directions of rotation is smaller than that of the rotary wind-up mechanism when a direction of rotation of the rotating shaft is the other of the opposite and one directions of rotation.