Abstract: Disclosed herein is a nipple overcap having a sterilizer including: a nursing bottle overcap detachably mounted on a nipple-fixing cap having a nipple and having a through-hole formed at the center thereof, a part of the upper portion of the nipple being located on the nursing bottle overcap; a substrate case detachably mounted on the upper portion of the nursing bottle overcap and having a sound generator; and an ozone generator mounted between the substrate case and the nursing bottle overcap, wherein the ozone generator includes: a rechargeable battery for supplying power source to the sound generator and the ozone generator; an electric circuit board for executing a preset program using power source supplied from the rechargeable battery; and an ozone lamp connected to the electric circuit board. The nipple overcap can sterilize various bacteria parasitic on the nipple by the ozone generator, and generate sounds according to the operation state of the sterilizer by the sound generator.

Abstract: A trailing arm mounting structure is provided, in which rear wheels follow a path approximating a straight line, which forms a predetermined acute angle with the road surface to the rear of the vehicle, during bump and rebound of the vehicle body such that shock in forward and rear directions transmitted from the road is reduced and space provided for the backseat and fuel tank is increased. In the trailing arm mounting structure, a first end of a trailing arm is connected to a rear wheel and a second end of the trailing arm is connected to a vehicle body with a concoid curve-forming assembly interposed therebetween.