Auxiliary toilet stool seat

1. An auxiliary toilet stool seat which can be mounted on a seat of a western-style toilet stool, the auxiliary toilet stool seat comprising:

a main body portion which is formed from a hard resin into an annular shape and arch shape in cross section which is made open at a bottom and is made flat at a top;

a circumferential edge packing made from a soft resin and adapted to cover a lower end of an outer circumferential edge of the auxiliary toilet stool seat;

a first leg portion which is brought into abutment with a top surface of the seat of the western-style toilet stool,

a second leg portion is slidably and adjustably movable in such a manner as to follow an inner perimeter of the seat of the western-style toilet stool and to be brought into abutment with the inner perimeter of the western-style toilet stool; and

and a third leg portion which is formed into an L-shape and is brought into press contact with a rear surface of the seat of the western style toilet stool on a horizontal surface of the L-shape,

wherein the first, second and third legs being provided on a rear surface of the main body portion of the auxiliary toilet stool seat.

2. An auxiliary toilet stool seat as set forth in claim 1 , wherein

the first leg portion, the second leg portion, and the third leg portion each have a resin member for protecting the seat of the western-style toilet stool.

3. An auxiliary toilet stool seat as set forth in claim 1 , wherein

the third leg portion which is adjustably rotated around an axis passing through itself and adjustably extended or contracted in the longitudinal direction of itself so as to enable a proper press contact with the rear surface of the seat of the western-style toilet stool according to for accomodating a different thicknesses of the seat of the western-style toilet stool.

4. An auxiliary toilet stool seat as set forth in claim 1 , wherein

the auxiliary toilet stool seat comprises a rotatable hook by which the auxiliary toilet stool seat can be suspended.

5. An auxiliary toilet stool seat as set forth in claim 1 , wherein

an opening for a hot-water washing unit is provided on an inner edge of the auxiliary toilet stool seat.

6. An auxiliary toilet stool seat as set forth in claim 1 , wherein

the auxiliary toilet stool seat comprises a handle portion that is to be gripped by an infant when the infant uses the auxiliary toilet stool seat and has a handle portion mounting recess portion where the handle portion is mounted at a distal end portion of the auxiliary toilet stool seat, so that the handle portion is mounted and dismounted freely in either a forward direction or a backward direction.

7. An auxiliary toilet stool seat as set forth in claim 6 , wherein

the handle portion mounting recess portion is formed into an oval-like shape and comprises cut-out portions provided in positions on a circumferential edge thereof which diametrically face each other and an opening in a bottom side thereof, while the handle portion comprises a fitting portion adapted to be fitted in the opening on a lower side thereof and has engagement claw portions on a circumferential edge of the lower side thereof in such a manner as to appear and disappear for engagement with and disengagement from the cut-out portions, the engagement claw portions being made to appear and disappear in association with engagement and disengagement of the fitting portion in and from the opening.