Abstract: A solenoid comprising a solenoid coil having a longitudinal hole at the center of a bobbin made of a non-magnetic material and a coil winding wound around the peripheral wall of the bobbin. A yoke comprising a peripheral side plate, an upper end plate and a lower end plate all for the covering the outer peripheral surface and both end surfaces of solenoid coil, a pole core disposed at one end of the longitudinal hole and a plunger fitted slidably into the other end of the longitudinal hole. The solenoid further comprises a protrusion member for forming an irregular magnetic field, formed integrally at the center of the yoke, and a recess for fitting the protrusion member from the end surface of the peripheral wall of the bobbin formed in the peripheral wall.

Abstract: A shower apparatus is provided with a plurality of shower discharge ports. More specifically, a shower apparatus is provided, in which hot water remains in a hot water line, that is communicated with the shower discharge ports, after the discharge has been completed. The hot water, which has a lower temperature, is drained through a drain valve for disposal of the water in the hot water line and a drain line. At the beginning of the next shower discharge, cold water is thus prevented from being discharged. The operation of an opening and closing valve for effecting discharge and stoppage of each shower discharge port is controlled according to control programs, so that the shower discharge is automatically controlled. The content of the shower discharge, carried out according to the programs, can be changed by a user through the operation of a control section. Moreover, upon the start of the shower discharge, a sudden jet of water is prevented.

Abstract: The present invention is related to a shower apparatus provided with a plurality of shower discharge ports. More specifically, a shower apparatus is disclosed in which hot water remains in a hot water line connected to several shower discharge ports, after a discharge has been completed. Hot water within the hot water line which has lowered in temperature is drained through a drain valve in order to dispose of the water. At the beginning of the next shower discharge, cold water is prevented from being discharged. The operation of an opening and closing valve for effecting discharge and stoppage of each shower discharge port is controlled according to control programs, whereby the shower discharge is substantially controlled. The content of the shower discharge, carried out according to the programs, can be changed by a user through the operation of a central section. Moreover, upon the start of a shower discharge, a sudden jet of water is prevented.