Abstract: A washing machine according to the present invention is configured such as to prevent intrusion of water into an ozone generator (42). That is, the washing machine is configured such that an introduction tube (43) extends downward from the ozone generator (42) to be connected to an air duct member (31). With this arrangement, even if water is condensed in the introduction tube (43) due to a temperature difference between the inside and the outside of the introduction tube (43), water droplets resulting from the water condensation do not intrude into the ozone generator (42), but fall down toward the air duct member (31) by their gravity. Further, even if water bubbles and detergent bubbles generated in an outer tub (7) during a washing process enter the introduction tube (43) and are broken to form water droplets, these water droplets, like the water drops resulting from the water condensation, do not intrude into the ozone generator (42), but fall down toward the air duct member (31) by their gravity.

Abstract: A spike is mountable onto the sole of a spiked track shoe which allows a runner to develop maximum propulsion against the field surface. The spike is removably attachable to the track shoe and includes an elongate support plate having at one end thereof a connection hole for connection with the shoe, and a spike portion disposed at the other end. The spike portion is disposed at an obtuse angle (i.e., greater than a right angle relative to the support plate). The spike is made of metal or of synthetic resin, and the spike portion may include one or more than one spike parts. The angle between the spike portion and the support plate is preferably between 95 and 130 degrees, and more preferably between 105 and 120 degrees. The spike portion is preferably convergent towards the tip thereof, for example in the shape of a cone. The spike portion may, however, also be suitably formed into a cylindrical shape, or in a stepped cylindrical shape.