Patent ID: 6389611
Filing Date: 2002-05-21
Classification: A47K,Y10T

Abstract:
A hinge device for use to support a seat and seat lid of a toilet bowl which are openably and closably on a body of the toilet bowl, the device comprising;a cylindrical hinge case having an axis and adapted to be fixed to the body of a toilet bowl; a rotating shaft having a large-diameter portion and a small-diameter portion and partially inserted into the hinge case such that the rotating shaft is rotatable about the axis of the hinge case; a stationary cam provided inside the hinge case in a state in which rotation of the stationary cam is restricted, the small-diameter portion of the rotating shaft penetrating a central portion of the stationary cam; a rotatable sliding cam provided inside the hinge case opposite the stationary cam, the rotatable sliding cam being slidable axially and rotatable along with the small-diameter portion of the rotating shaft, the small-diameter portion of the rotating shaft penetrating the central portion of the rotatable sliding cam; elastic means having an elasticity and provided inside the hinge case and adapted to press one of the rotatable sliding cam and the stationary cam toward the other of the rotatable sliding cam and the stationary cam; and elasticity adjusting means for adjusting the elasticity of the elastic means, the elasticity adjusting means comprises an adjusting screw penetrating an axially extending through hole of the rotating shaft and adapted to be rotated from a side on which the seat and seat lid are supported by the rotating shaft, a spring holder disposed inside the hinge case, the spring holder being screwed to a portion of the adjusting screw projecting from the rotating shaft and abutting one end of the elastic means, and a knob for rotating the adjusting screw, the knob being attached to a portion of the-adjusting screw projecting from an end of the rotating shaft on which the seat and seat lid are supported.