A hidden hinge system for raising and lowering a toilet seat or toilet lid is disclosed. In one embodiment, each hinge includes a curved support with a smooth, easy to clean surface. The curved support is connected to a lever and the lever is connected to a hinge assembly. We disclose embodiments in which both the lever and the hinge assembly are enclosed within a toilet housing to improve cleanliness. We further disclose embodiments in which the curved supports are hollow and which contain electrical wiring, water, and gases. Controller and proximity sensors which modulate the raising and lowering of the toilet seat and toilet lid are also disclosed and claimed herein.

The present invention relates to a device for opening and closing a toilet cover and a toilet seat and, more specifically, to a device for opening and closing a toilet cover and a toilet seat, enabling a user to open the toilet cover without touching the toilet cover. The device for opening and closing the toilet cover and the toilet seat, according to the present invention, can comprise: a toilet body provided with a water tank; fixing parts coupled and fixed to the toilet body; a housing coupled and fixed to one side of the fixing part and provided with a fixing shaft therein; a first rotating part positioned inside the housing, connected to one side of a rotating body shaft-coupled between the fixing parts, and coupled and fixed to the toilet cover, which is positioned on the toilet body, so as to rotate the toilet cover; a first lever rotatably shaft-coupled to the fixing shaft, connected to the peripheral surface of the first rotating part, and rotating the first rotating part by means of an external force; a second rotating part of which one end is rotatably shaft-fixed to one side surface of the rotating body by passing through the inside of the first rotating part, coupled and fixed to the toilet seat positioned under the toilet cover, and rotating the toilet seat; and a second lever shaft-coupled to the fixing shaft to be spaced from the first lever, connected to the peripheral surface of the second rotating part, and rotating the second rotating part by means of the external force.

The present invention relates to a device for opening and closing a toilet cover and a toilet seat and, more specifically, to a device for opening and closing a toilet cover and a toilet seat, enabling a user to open the toilet cover without touching the toilet cover. The device for opening and closing the toilet cover and the toilet seat, according to the present invention, can comprise: a toilet body provided with a water tank; fixing parts coupled and fixed to the toilet body; a housing coupled and fixed to one side of the fixing part and provided with a fixing shaft therein; a first rotating part positioned inside the housing, connected to one side of a rotating body shaft-coupled between the fixing parts, and coupled and fixed to the toilet cover, which is positioned on the toilet body, so as to rotate the toilet cover; a first lever rotatably shaft-coupled to the fixing shaft, connected to the peripheral surface of the first rotating part, and rotating the first rotating part by means of an external force; a second rotating part of which one end is rotatably shaft-fixed to one side surface of the rotating body by passing through the inside of the first rotating part, coupled and fixed to the toilet seat positioned under the toilet cover, and rotating the toilet seat; and a second lever shaft-coupled to the fixing shaft to be spaced from the first lever, connected to the peripheral surface of the second rotating part, and rotating the second rotating part by means of the external force.

An apparatus for raising and lowering a toilet seat that can easily be installed, for example by hand without tools, on a toilet, for example one that only has a seat and not a lid as commonly found in public venues. The apparatus includes a pedal base, a pedal, a seat bracket, and a lifter lever. The pedal is pivotally connected to the pedal base and coupled to the seat bracket so that movement of the pedal induces movement of the seat bracket and the lifter lever. The lifter lever is positioned under a toilet seat so that as the lifter lever is moved, the toilet seat is raised, and as the seat bracket rotates back down by reverse action on the pedal, the toilet seat is lowered.

An apparatus for raising and lowering a toilet seat that can easily be installed, for example by hand without tools, on a toilet, for example one that only has a seat and not a lid as commonly found in public venues. The apparatus includes a pedal base, a pedal, a seat bracket, and a lifter lever. The pedal is pivotally connected to the pedal base and coupled to the seat bracket so that movement of the pedal induces movement of the seat bracket and the lifter lever. The lifter lever is positioned under a toilet seat so that as the lifter lever is moved, the toilet seat is raised, and as the seat bracket rotates back down by reverse action on the pedal, the toilet seat is lowered.

An apparatus for moving a toilet seat from a closed position adjacent a toilet bowl to a raised position includes an actuator attached to a foot pedal. Pressing the foot pedal moves the actuator in a forward stroke such that nearing the end of the forward stroke an end of the actuator is pivoted and elements connected to the actuator bear against an underside of the toilet seat, raising the seat away from the bowl.

An apparatus for moving a toilet seat from a closed position adjacent a toilet bowl to a raised position includes an actuator attached to a foot pedal. Pressing the foot pedal moves the actuator in a forward stroke such that nearing the end of the forward stroke an end of the actuator is pivoted and elements connected to the actuator bear against an underside of the toilet seat, raising the seat away from the bowl.

According to one embodiment, a sensor device includes a transmitter part, a receiver part, a signal generation part, and a determination part. The transmitter part is configured to emit a radio wave outside as a transmission wave. The receiver part is configured to receive a reflection wave reflected by an object as a reception wave. The signal generation part is configured to generate a first output signal generated based on the transmission wave and the reception wave, a second output signal provided with a phase different from that of the first output signal, and a third output signal generated based on the first output signal and the second output signal. The determination part is configured to determine presence or absence of an object based on the first output signal, the second output signal, and the third output signal.

According to one embodiment, a sensor device includes a transmitter part, a receiver part, a signal generation part, and a determination part. The transmitter part is configured to emit a radio wave outside as a transmission wave. The receiver part is configured to receive a reflection wave reflected by an object as a reception wave. The signal generation part is configured to generate a first output signal generated based on the transmission wave and the reception wave, a second output signal provided with a phase different from that of the first output signal, and a third output signal generated based on the first output signal and the second output signal. The determination part is configured to determine presence or absence of an object based on the first output signal, the second output signal, and the third output signal.

Provided is a damper device capable of increasing torque of a coil spring without increasing an outer diameter of a case. The damper device includes the case (2), a shaft (3) that is relatively rotatable with respect to the case (2), fluid filled in a damper chamber (5) formed between the case (2) and the shaft (3), a bearing member (4) that forms a partition wall (5a) that closes one end of the damper chamber (5) in an axial direction and is separate from the shaft (3), and a coil spring (9) having one end connected to a side of the case (2) and the other end connected to the shaft (3) or the bearing member (4) to apply torque to the shaft (3) with respect to the case (2). The bearing member (4) is arranged between a winding portion (9a) of the coil spring (9) and the damper chamber.